Merge branch 'pm-devfreq'
* pm-devfreq: (26 commits)
PM / devfreq: tegra30: Tune up MCCPU boost-down coefficient
PM / devfreq: tegra30: Support variable polling interval
PM / devfreq: Add new interrupt_driven flag for governors
PM / devfreq: tegra30: Use kHz units for dependency threshold
PM / devfreq: tegra30: Disable consecutive interrupts when appropriate
PM / devfreq: tegra30: Don't enable already enabled consecutive interrupts
PM / devfreq: tegra30: Include appropriate header
PM / devfreq: tegra30: Constify structs
PM / devfreq: tegra30: Don't enable consecutive-down interrupt on startup
PM / devfreq: tegra30: Reset boosting on startup
PM / devfreq: tegra30: Move clk-notifier's registration to governor's start
PM / devfreq: tegra30: Use CPUFreq notifier
PM / devfreq: tegra30: Use kHz units uniformly in the code
PM / devfreq: tegra30: Fix integer overflow on CPU's freq max out
PM / devfreq: tegra30: Drop write-barrier
PM / devfreq: tegra30: Handle possible round-rate error
PM / devfreq: tegra30: Keep interrupt disabled while governor is stopped
PM / devfreq: tegra30: Change irq type to unsigned int
PM / devfreq: exynos-ppmu: remove useless assignment
PM / devfreq: Lock devfreq in trans_stat_show
...
diff --git a/.mailmap b/.mailmap
index 83d7e75..fd62192 100644
--- a/.mailmap
+++ b/.mailmap
@@ -108,6 +108,10 @@
Jason Gunthorpe <jgg@ziepe.ca> <jgunthorpe@obsidianresearch.com>
Javi Merino <javi.merino@kernel.org> <javi.merino@arm.com>
<javier@osg.samsung.com> <javier.martinez@collabora.co.uk>
+Jayachandran C <c.jayachandran@gmail.com> <jayachandranc@netlogicmicro.com>
+Jayachandran C <c.jayachandran@gmail.com> <jchandra@broadcom.com>
+Jayachandran C <c.jayachandran@gmail.com> <jchandra@digeo.com>
+Jayachandran C <c.jayachandran@gmail.com> <jnair@caviumnetworks.com>
Jean Tourrilhes <jt@hpl.hp.com>
<jean-philippe@linaro.org> <jean-philippe.brucker@arm.com>
Jeff Garzik <jgarzik@pretzel.yyz.us>
diff --git a/Documentation/ABI/testing/sysfs-devices-system-cpu b/Documentation/ABI/testing/sysfs-devices-system-cpu
index 06d0931..fc20cde 100644
--- a/Documentation/ABI/testing/sysfs-devices-system-cpu
+++ b/Documentation/ABI/testing/sysfs-devices-system-cpu
@@ -486,6 +486,8 @@
/sys/devices/system/cpu/vulnerabilities/spec_store_bypass
/sys/devices/system/cpu/vulnerabilities/l1tf
/sys/devices/system/cpu/vulnerabilities/mds
+ /sys/devices/system/cpu/vulnerabilities/tsx_async_abort
+ /sys/devices/system/cpu/vulnerabilities/itlb_multihit
Date: January 2018
Contact: Linux kernel mailing list <linux-kernel@vger.kernel.org>
Description: Information about CPU vulnerabilities
diff --git a/Documentation/admin-guide/hw-vuln/index.rst b/Documentation/admin-guide/hw-vuln/index.rst
index 49311f3..0795e3c 100644
--- a/Documentation/admin-guide/hw-vuln/index.rst
+++ b/Documentation/admin-guide/hw-vuln/index.rst
@@ -12,3 +12,5 @@
spectre
l1tf
mds
+ tsx_async_abort
+ multihit.rst
diff --git a/Documentation/admin-guide/hw-vuln/multihit.rst b/Documentation/admin-guide/hw-vuln/multihit.rst
new file mode 100644
index 0000000..ba9988d
--- /dev/null
+++ b/Documentation/admin-guide/hw-vuln/multihit.rst
@@ -0,0 +1,163 @@
+iTLB multihit
+=============
+
+iTLB multihit is an erratum where some processors may incur a machine check
+error, possibly resulting in an unrecoverable CPU lockup, when an
+instruction fetch hits multiple entries in the instruction TLB. This can
+occur when the page size is changed along with either the physical address
+or cache type. A malicious guest running on a virtualized system can
+exploit this erratum to perform a denial of service attack.
+
+
+Affected processors
+-------------------
+
+Variations of this erratum are present on most Intel Core and Xeon processor
+models. The erratum is not present on:
+
+ - non-Intel processors
+
+ - Some Atoms (Airmont, Bonnell, Goldmont, GoldmontPlus, Saltwell, Silvermont)
+
+ - Intel processors that have the PSCHANGE_MC_NO bit set in the
+ IA32_ARCH_CAPABILITIES MSR.
+
+
+Related CVEs
+------------
+
+The following CVE entry is related to this issue:
+
+ ============== =================================================
+ CVE-2018-12207 Machine Check Error Avoidance on Page Size Change
+ ============== =================================================
+
+
+Problem
+-------
+
+Privileged software, including OS and virtual machine managers (VMM), are in
+charge of memory management. A key component in memory management is the control
+of the page tables. Modern processors use virtual memory, a technique that creates
+the illusion of a very large memory for processors. This virtual space is split
+into pages of a given size. Page tables translate virtual addresses to physical
+addresses.
+
+To reduce latency when performing a virtual to physical address translation,
+processors include a structure, called TLB, that caches recent translations.
+There are separate TLBs for instruction (iTLB) and data (dTLB).
+
+Under this errata, instructions are fetched from a linear address translated
+using a 4 KB translation cached in the iTLB. Privileged software modifies the
+paging structure so that the same linear address using large page size (2 MB, 4
+MB, 1 GB) with a different physical address or memory type. After the page
+structure modification but before the software invalidates any iTLB entries for
+the linear address, a code fetch that happens on the same linear address may
+cause a machine-check error which can result in a system hang or shutdown.
+
+
+Attack scenarios
+----------------
+
+Attacks against the iTLB multihit erratum can be mounted from malicious
+guests in a virtualized system.
+
+
+iTLB multihit system information
+--------------------------------
+
+The Linux kernel provides a sysfs interface to enumerate the current iTLB
+multihit status of the system:whether the system is vulnerable and which
+mitigations are active. The relevant sysfs file is:
+
+/sys/devices/system/cpu/vulnerabilities/itlb_multihit
+
+The possible values in this file are:
+
+.. list-table::
+
+ * - Not affected
+ - The processor is not vulnerable.
+ * - KVM: Mitigation: Split huge pages
+ - Software changes mitigate this issue.
+ * - KVM: Vulnerable
+ - The processor is vulnerable, but no mitigation enabled
+
+
+Enumeration of the erratum
+--------------------------------
+
+A new bit has been allocated in the IA32_ARCH_CAPABILITIES (PSCHANGE_MC_NO) msr
+and will be set on CPU's which are mitigated against this issue.
+
+ ======================================= =========== ===============================
+ IA32_ARCH_CAPABILITIES MSR Not present Possibly vulnerable,check model
+ IA32_ARCH_CAPABILITIES[PSCHANGE_MC_NO] '0' Likely vulnerable,check model
+ IA32_ARCH_CAPABILITIES[PSCHANGE_MC_NO] '1' Not vulnerable
+ ======================================= =========== ===============================
+
+
+Mitigation mechanism
+-------------------------
+
+This erratum can be mitigated by restricting the use of large page sizes to
+non-executable pages. This forces all iTLB entries to be 4K, and removes
+the possibility of multiple hits.
+
+In order to mitigate the vulnerability, KVM initially marks all huge pages
+as non-executable. If the guest attempts to execute in one of those pages,
+the page is broken down into 4K pages, which are then marked executable.
+
+If EPT is disabled or not available on the host, KVM is in control of TLB
+flushes and the problematic situation cannot happen. However, the shadow
+EPT paging mechanism used by nested virtualization is vulnerable, because
+the nested guest can trigger multiple iTLB hits by modifying its own
+(non-nested) page tables. For simplicity, KVM will make large pages
+non-executable in all shadow paging modes.
+
+Mitigation control on the kernel command line and KVM - module parameter
+------------------------------------------------------------------------
+
+The KVM hypervisor mitigation mechanism for marking huge pages as
+non-executable can be controlled with a module parameter "nx_huge_pages=".
+The kernel command line allows to control the iTLB multihit mitigations at
+boot time with the option "kvm.nx_huge_pages=".
+
+The valid arguments for these options are:
+
+ ========== ================================================================
+ force Mitigation is enabled. In this case, the mitigation implements
+ non-executable huge pages in Linux kernel KVM module. All huge
+ pages in the EPT are marked as non-executable.
+ If a guest attempts to execute in one of those pages, the page is
+ broken down into 4K pages, which are then marked executable.
+
+ off Mitigation is disabled.
+
+ auto Enable mitigation only if the platform is affected and the kernel
+ was not booted with the "mitigations=off" command line parameter.
+ This is the default option.
+ ========== ================================================================
+
+
+Mitigation selection guide
+--------------------------
+
+1. No virtualization in use
+^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+ The system is protected by the kernel unconditionally and no further
+ action is required.
+
+2. Virtualization with trusted guests
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+ If the guest comes from a trusted source, you may assume that the guest will
+ not attempt to maliciously exploit these errata and no further action is
+ required.
+
+3. Virtualization with untrusted guests
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+ If the guest comes from an untrusted source, the guest host kernel will need
+ to apply iTLB multihit mitigation via the kernel command line or kvm
+ module parameter.
diff --git a/Documentation/admin-guide/hw-vuln/tsx_async_abort.rst b/Documentation/admin-guide/hw-vuln/tsx_async_abort.rst
new file mode 100644
index 0000000..fddbd75
--- /dev/null
+++ b/Documentation/admin-guide/hw-vuln/tsx_async_abort.rst
@@ -0,0 +1,276 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+TAA - TSX Asynchronous Abort
+======================================
+
+TAA is a hardware vulnerability that allows unprivileged speculative access to
+data which is available in various CPU internal buffers by using asynchronous
+aborts within an Intel TSX transactional region.
+
+Affected processors
+-------------------
+
+This vulnerability only affects Intel processors that support Intel
+Transactional Synchronization Extensions (TSX) when the TAA_NO bit (bit 8)
+is 0 in the IA32_ARCH_CAPABILITIES MSR. On processors where the MDS_NO bit
+(bit 5) is 0 in the IA32_ARCH_CAPABILITIES MSR, the existing MDS mitigations
+also mitigate against TAA.
+
+Whether a processor is affected or not can be read out from the TAA
+vulnerability file in sysfs. See :ref:`tsx_async_abort_sys_info`.
+
+Related CVEs
+------------
+
+The following CVE entry is related to this TAA issue:
+
+ ============== ===== ===================================================
+ CVE-2019-11135 TAA TSX Asynchronous Abort (TAA) condition on some
+ microprocessors utilizing speculative execution may
+ allow an authenticated user to potentially enable
+ information disclosure via a side channel with
+ local access.
+ ============== ===== ===================================================
+
+Problem
+-------
+
+When performing store, load or L1 refill operations, processors write
+data into temporary microarchitectural structures (buffers). The data in
+those buffers can be forwarded to load operations as an optimization.
+
+Intel TSX is an extension to the x86 instruction set architecture that adds
+hardware transactional memory support to improve performance of multi-threaded
+software. TSX lets the processor expose and exploit concurrency hidden in an
+application due to dynamically avoiding unnecessary synchronization.
+
+TSX supports atomic memory transactions that are either committed (success) or
+aborted. During an abort, operations that happened within the transactional region
+are rolled back. An asynchronous abort takes place, among other options, when a
+different thread accesses a cache line that is also used within the transactional
+region when that access might lead to a data race.
+
+Immediately after an uncompleted asynchronous abort, certain speculatively
+executed loads may read data from those internal buffers and pass it to dependent
+operations. This can be then used to infer the value via a cache side channel
+attack.
+
+Because the buffers are potentially shared between Hyper-Threads cross
+Hyper-Thread attacks are possible.
+
+The victim of a malicious actor does not need to make use of TSX. Only the
+attacker needs to begin a TSX transaction and raise an asynchronous abort
+which in turn potenitally leaks data stored in the buffers.
+
+More detailed technical information is available in the TAA specific x86
+architecture section: :ref:`Documentation/x86/tsx_async_abort.rst <tsx_async_abort>`.
+
+
+Attack scenarios
+----------------
+
+Attacks against the TAA vulnerability can be implemented from unprivileged
+applications running on hosts or guests.
+
+As for MDS, the attacker has no control over the memory addresses that can
+be leaked. Only the victim is responsible for bringing data to the CPU. As
+a result, the malicious actor has to sample as much data as possible and
+then postprocess it to try to infer any useful information from it.
+
+A potential attacker only has read access to the data. Also, there is no direct
+privilege escalation by using this technique.
+
+
+.. _tsx_async_abort_sys_info:
+
+TAA system information
+-----------------------
+
+The Linux kernel provides a sysfs interface to enumerate the current TAA status
+of mitigated systems. The relevant sysfs file is:
+
+/sys/devices/system/cpu/vulnerabilities/tsx_async_abort
+
+The possible values in this file are:
+
+.. list-table::
+
+ * - 'Vulnerable'
+ - The CPU is affected by this vulnerability and the microcode and kernel mitigation are not applied.
+ * - 'Vulnerable: Clear CPU buffers attempted, no microcode'
+ - The system tries to clear the buffers but the microcode might not support the operation.
+ * - 'Mitigation: Clear CPU buffers'
+ - The microcode has been updated to clear the buffers. TSX is still enabled.
+ * - 'Mitigation: TSX disabled'
+ - TSX is disabled.
+ * - 'Not affected'
+ - The CPU is not affected by this issue.
+
+.. _ucode_needed:
+
+Best effort mitigation mode
+^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+If the processor is vulnerable, but the availability of the microcode-based
+mitigation mechanism is not advertised via CPUID the kernel selects a best
+effort mitigation mode. This mode invokes the mitigation instructions
+without a guarantee that they clear the CPU buffers.
+
+This is done to address virtualization scenarios where the host has the
+microcode update applied, but the hypervisor is not yet updated to expose the
+CPUID to the guest. If the host has updated microcode the protection takes
+effect; otherwise a few CPU cycles are wasted pointlessly.
+
+The state in the tsx_async_abort sysfs file reflects this situation
+accordingly.
+
+
+Mitigation mechanism
+--------------------
+
+The kernel detects the affected CPUs and the presence of the microcode which is
+required. If a CPU is affected and the microcode is available, then the kernel
+enables the mitigation by default.
+
+
+The mitigation can be controlled at boot time via a kernel command line option.
+See :ref:`taa_mitigation_control_command_line`.
+
+.. _virt_mechanism:
+
+Virtualization mitigation
+^^^^^^^^^^^^^^^^^^^^^^^^^
+
+Affected systems where the host has TAA microcode and TAA is mitigated by
+having disabled TSX previously, are not vulnerable regardless of the status
+of the VMs.
+
+In all other cases, if the host either does not have the TAA microcode or
+the kernel is not mitigated, the system might be vulnerable.
+
+
+.. _taa_mitigation_control_command_line:
+
+Mitigation control on the kernel command line
+---------------------------------------------
+
+The kernel command line allows to control the TAA mitigations at boot time with
+the option "tsx_async_abort=". The valid arguments for this option are:
+
+ ============ =============================================================
+ off This option disables the TAA mitigation on affected platforms.
+ If the system has TSX enabled (see next parameter) and the CPU
+ is affected, the system is vulnerable.
+
+ full TAA mitigation is enabled. If TSX is enabled, on an affected
+ system it will clear CPU buffers on ring transitions. On
+ systems which are MDS-affected and deploy MDS mitigation,
+ TAA is also mitigated. Specifying this option on those
+ systems will have no effect.
+
+ full,nosmt The same as tsx_async_abort=full, with SMT disabled on
+ vulnerable CPUs that have TSX enabled. This is the complete
+ mitigation. When TSX is disabled, SMT is not disabled because
+ CPU is not vulnerable to cross-thread TAA attacks.
+ ============ =============================================================
+
+Not specifying this option is equivalent to "tsx_async_abort=full".
+
+The kernel command line also allows to control the TSX feature using the
+parameter "tsx=" on CPUs which support TSX control. MSR_IA32_TSX_CTRL is used
+to control the TSX feature and the enumeration of the TSX feature bits (RTM
+and HLE) in CPUID.
+
+The valid options are:
+
+ ============ =============================================================
+ off Disables TSX on the system.
+
+ Note that this option takes effect only on newer CPUs which are
+ not vulnerable to MDS, i.e., have MSR_IA32_ARCH_CAPABILITIES.MDS_NO=1
+ and which get the new IA32_TSX_CTRL MSR through a microcode
+ update. This new MSR allows for the reliable deactivation of
+ the TSX functionality.
+
+ on Enables TSX.
+
+ Although there are mitigations for all known security
+ vulnerabilities, TSX has been known to be an accelerator for
+ several previous speculation-related CVEs, and so there may be
+ unknown security risks associated with leaving it enabled.
+
+ auto Disables TSX if X86_BUG_TAA is present, otherwise enables TSX
+ on the system.
+ ============ =============================================================
+
+Not specifying this option is equivalent to "tsx=off".
+
+The following combinations of the "tsx_async_abort" and "tsx" are possible. For
+affected platforms tsx=auto is equivalent to tsx=off and the result will be:
+
+ ========= ========================== =========================================
+ tsx=on tsx_async_abort=full The system will use VERW to clear CPU
+ buffers. Cross-thread attacks are still
+ possible on SMT machines.
+ tsx=on tsx_async_abort=full,nosmt As above, cross-thread attacks on SMT
+ mitigated.
+ tsx=on tsx_async_abort=off The system is vulnerable.
+ tsx=off tsx_async_abort=full TSX might be disabled if microcode
+ provides a TSX control MSR. If so,
+ system is not vulnerable.
+ tsx=off tsx_async_abort=full,nosmt Ditto
+ tsx=off tsx_async_abort=off ditto
+ ========= ========================== =========================================
+
+
+For unaffected platforms "tsx=on" and "tsx_async_abort=full" does not clear CPU
+buffers. For platforms without TSX control (MSR_IA32_ARCH_CAPABILITIES.MDS_NO=0)
+"tsx" command line argument has no effect.
+
+For the affected platforms below table indicates the mitigation status for the
+combinations of CPUID bit MD_CLEAR and IA32_ARCH_CAPABILITIES MSR bits MDS_NO
+and TSX_CTRL_MSR.
+
+ ======= ========= ============= ========================================
+ MDS_NO MD_CLEAR TSX_CTRL_MSR Status
+ ======= ========= ============= ========================================
+ 0 0 0 Vulnerable (needs microcode)
+ 0 1 0 MDS and TAA mitigated via VERW
+ 1 1 0 MDS fixed, TAA vulnerable if TSX enabled
+ because MD_CLEAR has no meaning and
+ VERW is not guaranteed to clear buffers
+ 1 X 1 MDS fixed, TAA can be mitigated by
+ VERW or TSX_CTRL_MSR
+ ======= ========= ============= ========================================
+
+Mitigation selection guide
+--------------------------
+
+1. Trusted userspace and guests
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+If all user space applications are from a trusted source and do not execute
+untrusted code which is supplied externally, then the mitigation can be
+disabled. The same applies to virtualized environments with trusted guests.
+
+
+2. Untrusted userspace and guests
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+
+If there are untrusted applications or guests on the system, enabling TSX
+might allow a malicious actor to leak data from the host or from other
+processes running on the same physical core.
+
+If the microcode is available and the TSX is disabled on the host, attacks
+are prevented in a virtualized environment as well, even if the VMs do not
+explicitly enable the mitigation.
+
+
+.. _taa_default_mitigations:
+
+Default mitigations
+-------------------
+
+The kernel's default action for vulnerable processors is:
+
+ - Deploy TSX disable mitigation (tsx_async_abort=full tsx=off).
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index a84a83f..8dee8f6 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -2055,6 +2055,25 @@
KVM MMU at runtime.
Default is 0 (off)
+ kvm.nx_huge_pages=
+ [KVM] Controls the software workaround for the
+ X86_BUG_ITLB_MULTIHIT bug.
+ force : Always deploy workaround.
+ off : Never deploy workaround.
+ auto : Deploy workaround based on the presence of
+ X86_BUG_ITLB_MULTIHIT.
+
+ Default is 'auto'.
+
+ If the software workaround is enabled for the host,
+ guests do need not to enable it for nested guests.
+
+ kvm.nx_huge_pages_recovery_ratio=
+ [KVM] Controls how many 4KiB pages are periodically zapped
+ back to huge pages. 0 disables the recovery, otherwise if
+ the value is N KVM will zap 1/Nth of the 4KiB pages every
+ minute. The default is 60.
+
kvm-amd.nested= [KVM,AMD] Allow nested virtualization in KVM/SVM.
Default is 1 (enabled)
@@ -2636,6 +2655,13 @@
ssbd=force-off [ARM64]
l1tf=off [X86]
mds=off [X86]
+ tsx_async_abort=off [X86]
+ kvm.nx_huge_pages=off [X86]
+
+ Exceptions:
+ This does not have any effect on
+ kvm.nx_huge_pages when
+ kvm.nx_huge_pages=force.
auto (default)
Mitigate all CPU vulnerabilities, but leave SMT
@@ -2651,6 +2677,7 @@
be fully mitigated, even if it means losing SMT.
Equivalent to: l1tf=flush,nosmt [X86]
mds=full,nosmt [X86]
+ tsx_async_abort=full,nosmt [X86]
mminit_loglevel=
[KNL] When CONFIG_DEBUG_MEMORY_INIT is set, this
@@ -4848,6 +4875,71 @@
interruptions from clocksource watchdog are not
acceptable).
+ tsx= [X86] Control Transactional Synchronization
+ Extensions (TSX) feature in Intel processors that
+ support TSX control.
+
+ This parameter controls the TSX feature. The options are:
+
+ on - Enable TSX on the system. Although there are
+ mitigations for all known security vulnerabilities,
+ TSX has been known to be an accelerator for
+ several previous speculation-related CVEs, and
+ so there may be unknown security risks associated
+ with leaving it enabled.
+
+ off - Disable TSX on the system. (Note that this
+ option takes effect only on newer CPUs which are
+ not vulnerable to MDS, i.e., have
+ MSR_IA32_ARCH_CAPABILITIES.MDS_NO=1 and which get
+ the new IA32_TSX_CTRL MSR through a microcode
+ update. This new MSR allows for the reliable
+ deactivation of the TSX functionality.)
+
+ auto - Disable TSX if X86_BUG_TAA is present,
+ otherwise enable TSX on the system.
+
+ Not specifying this option is equivalent to tsx=off.
+
+ See Documentation/admin-guide/hw-vuln/tsx_async_abort.rst
+ for more details.
+
+ tsx_async_abort= [X86,INTEL] Control mitigation for the TSX Async
+ Abort (TAA) vulnerability.
+
+ Similar to Micro-architectural Data Sampling (MDS)
+ certain CPUs that support Transactional
+ Synchronization Extensions (TSX) are vulnerable to an
+ exploit against CPU internal buffers which can forward
+ information to a disclosure gadget under certain
+ conditions.
+
+ In vulnerable processors, the speculatively forwarded
+ data can be used in a cache side channel attack, to
+ access data to which the attacker does not have direct
+ access.
+
+ This parameter controls the TAA mitigation. The
+ options are:
+
+ full - Enable TAA mitigation on vulnerable CPUs
+ if TSX is enabled.
+
+ full,nosmt - Enable TAA mitigation and disable SMT on
+ vulnerable CPUs. If TSX is disabled, SMT
+ is not disabled because CPU is not
+ vulnerable to cross-thread TAA attacks.
+ off - Unconditionally disable TAA mitigation
+
+ Not specifying this option is equivalent to
+ tsx_async_abort=full. On CPUs which are MDS affected
+ and deploy MDS mitigation, TAA mitigation is not
+ required and doesn't provide any additional
+ mitigation.
+
+ For details see:
+ Documentation/admin-guide/hw-vuln/tsx_async_abort.rst
+
turbografx.map[2|3]= [HW,JOY]
TurboGraFX parallel port interface
Format:
diff --git a/Documentation/devicetree/bindings/arm/omap/omap.txt b/Documentation/devicetree/bindings/arm/omap/omap.txt
index b301f75..e77635c 100644
--- a/Documentation/devicetree/bindings/arm/omap/omap.txt
+++ b/Documentation/devicetree/bindings/arm/omap/omap.txt
@@ -43,7 +43,7 @@
- OMAP2 generic - defaults to OMAP2420
compatible = "ti,omap2"
-- OMAP3 generic - defaults to OMAP3430
+- OMAP3 generic
compatible = "ti,omap3"
- OMAP4 generic - defaults to OMAP4430
compatible = "ti,omap4"
@@ -51,6 +51,8 @@
compatible = "ti,omap5"
- DRA7 generic - defaults to DRA742
compatible = "ti,dra7"
+- AM33x generic
+ compatible = "ti,am33xx"
- AM43x generic - defaults to AM4372
compatible = "ti,am43"
@@ -63,12 +65,14 @@
- OMAP3430
compatible = "ti,omap3430", "ti,omap3"
+ legacy: "ti,omap34xx" - please do not use any more
- AM3517
compatible = "ti,am3517", "ti,omap3"
- OMAP3630
- compatible = "ti,omap36xx", "ti,omap3"
-- AM33xx
- compatible = "ti,am33xx", "ti,omap3"
+ compatible = "ti,omap3630", "ti,omap3"
+ legacy: "ti,omap36xx" - please do not use any more
+- AM335x
+ compatible = "ti,am33xx"
- OMAP4430
compatible = "ti,omap4430", "ti,omap4"
@@ -110,19 +114,19 @@
- AM4372
compatible = "ti,am4372", "ti,am43"
-Boards:
+Boards (incomplete list of examples):
- OMAP3 BeagleBoard : Low cost community board
- compatible = "ti,omap3-beagle", "ti,omap3"
+ compatible = "ti,omap3-beagle", "ti,omap3430", "ti,omap3"
- OMAP3 Tobi with Overo : Commercial expansion board with daughter board
- compatible = "gumstix,omap3-overo-tobi", "gumstix,omap3-overo", "ti,omap3"
+ compatible = "gumstix,omap3-overo-tobi", "gumstix,omap3-overo", "ti,omap3430", "ti,omap3"
- OMAP4 SDP : Software Development Board
- compatible = "ti,omap4-sdp", "ti,omap4430"
+ compatible = "ti,omap4-sdp", "ti,omap4430", "ti,omap4"
- OMAP4 PandaBoard : Low cost community board
- compatible = "ti,omap4-panda", "ti,omap4430"
+ compatible = "ti,omap4-panda", "ti,omap4430", "ti,omap4"
- OMAP4 DuoVero with Parlor : Commercial expansion board with daughter board
compatible = "gumstix,omap4-duovero-parlor", "gumstix,omap4-duovero", "ti,omap4430", "ti,omap4";
@@ -134,16 +138,16 @@
compatible = "variscite,var-dvk-om44", "variscite,var-som-om44", "ti,omap4460", "ti,omap4";
- OMAP3 EVM : Software Development Board for OMAP35x, AM/DM37x
- compatible = "ti,omap3-evm", "ti,omap3"
+ compatible = "ti,omap3-evm", "ti,omap3630", "ti,omap3"
- AM335X EVM : Software Development Board for AM335x
- compatible = "ti,am335x-evm", "ti,am33xx", "ti,omap3"
+ compatible = "ti,am335x-evm", "ti,am33xx"
- AM335X Bone : Low cost community board
- compatible = "ti,am335x-bone", "ti,am33xx", "ti,omap3"
+ compatible = "ti,am335x-bone", "ti,am33xx"
- AM3359 ICEv2 : Low cost Industrial Communication Engine EVM.
- compatible = "ti,am3359-icev2", "ti,am33xx", "ti,omap3"
+ compatible = "ti,am3359-icev2", "ti,am33xx"
- AM335X OrionLXm : Substation Automation Platform
compatible = "novatech,am335x-lxm", "ti,am33xx"
diff --git a/Documentation/devicetree/bindings/cpufreq/ti-cpufreq.txt b/Documentation/devicetree/bindings/cpufreq/ti-cpufreq.txt
index 0c38e4b..1758051 100644
--- a/Documentation/devicetree/bindings/cpufreq/ti-cpufreq.txt
+++ b/Documentation/devicetree/bindings/cpufreq/ti-cpufreq.txt
@@ -15,12 +15,16 @@
In 'operating-points-v2' table:
- compatible: Should be
- - 'operating-points-v2-ti-cpu' for am335x, am43xx, and dra7xx/am57xx SoCs
+ - 'operating-points-v2-ti-cpu' for am335x, am43xx, and dra7xx/am57xx,
+ omap34xx, omap36xx and am3517 SoCs
- syscon: A phandle pointing to a syscon node representing the control module
register space of the SoC.
Optional properties:
--------------------
+- "vdd-supply", "vbb-supply": to define two regulators for dra7xx
+- "cpu0-supply", "vbb-supply": to define two regulators for omap36xx
+
For each opp entry in 'operating-points-v2' table:
- opp-supported-hw: Two bitfields indicating:
1. Which revision of the SoC the OPP is supported by
diff --git a/Documentation/networking/tls-offload.rst b/Documentation/networking/tls-offload.rst
index 0dd3f74..f914e81 100644
--- a/Documentation/networking/tls-offload.rst
+++ b/Documentation/networking/tls-offload.rst
@@ -436,6 +436,10 @@
encryption.
* ``tx_tls_ooo`` - number of TX packets which were part of a TLS stream
but did not arrive in the expected order.
+ * ``tx_tls_skip_no_sync_data`` - number of TX packets which were part of
+ a TLS stream and arrived out-of-order, but skipped the HW offload routine
+ and went to the regular transmit flow as they were retransmissions of the
+ connection handshake.
* ``tx_tls_drop_no_sync_data`` - number of TX packets which were part of
a TLS stream dropped, because they arrived out of order and associated
record could not be found.
diff --git a/Documentation/x86/index.rst b/Documentation/x86/index.rst
index af64c4b..a8de2fb 100644
--- a/Documentation/x86/index.rst
+++ b/Documentation/x86/index.rst
@@ -27,6 +27,7 @@
mds
microcode
resctrl_ui
+ tsx_async_abort
usb-legacy-support
i386/index
x86_64/index
diff --git a/Documentation/x86/tsx_async_abort.rst b/Documentation/x86/tsx_async_abort.rst
new file mode 100644
index 0000000..583ddc1
--- /dev/null
+++ b/Documentation/x86/tsx_async_abort.rst
@@ -0,0 +1,117 @@
+.. SPDX-License-Identifier: GPL-2.0
+
+TSX Async Abort (TAA) mitigation
+================================
+
+.. _tsx_async_abort:
+
+Overview
+--------
+
+TSX Async Abort (TAA) is a side channel attack on internal buffers in some
+Intel processors similar to Microachitectural Data Sampling (MDS). In this
+case certain loads may speculatively pass invalid data to dependent operations
+when an asynchronous abort condition is pending in a Transactional
+Synchronization Extensions (TSX) transaction. This includes loads with no
+fault or assist condition. Such loads may speculatively expose stale data from
+the same uarch data structures as in MDS, with same scope of exposure i.e.
+same-thread and cross-thread. This issue affects all current processors that
+support TSX.
+
+Mitigation strategy
+-------------------
+
+a) TSX disable - one of the mitigations is to disable TSX. A new MSR
+IA32_TSX_CTRL will be available in future and current processors after
+microcode update which can be used to disable TSX. In addition, it
+controls the enumeration of the TSX feature bits (RTM and HLE) in CPUID.
+
+b) Clear CPU buffers - similar to MDS, clearing the CPU buffers mitigates this
+vulnerability. More details on this approach can be found in
+:ref:`Documentation/admin-guide/hw-vuln/mds.rst <mds>`.
+
+Kernel internal mitigation modes
+--------------------------------
+
+ ============= ============================================================
+ off Mitigation is disabled. Either the CPU is not affected or
+ tsx_async_abort=off is supplied on the kernel command line.
+
+ tsx disabled Mitigation is enabled. TSX feature is disabled by default at
+ bootup on processors that support TSX control.
+
+ verw Mitigation is enabled. CPU is affected and MD_CLEAR is
+ advertised in CPUID.
+
+ ucode needed Mitigation is enabled. CPU is affected and MD_CLEAR is not
+ advertised in CPUID. That is mainly for virtualization
+ scenarios where the host has the updated microcode but the
+ hypervisor does not expose MD_CLEAR in CPUID. It's a best
+ effort approach without guarantee.
+ ============= ============================================================
+
+If the CPU is affected and the "tsx_async_abort" kernel command line parameter is
+not provided then the kernel selects an appropriate mitigation depending on the
+status of RTM and MD_CLEAR CPUID bits.
+
+Below tables indicate the impact of tsx=on|off|auto cmdline options on state of
+TAA mitigation, VERW behavior and TSX feature for various combinations of
+MSR_IA32_ARCH_CAPABILITIES bits.
+
+1. "tsx=off"
+
+========= ========= ============ ============ ============== =================== ======================
+MSR_IA32_ARCH_CAPABILITIES bits Result with cmdline tsx=off
+---------------------------------- -------------------------------------------------------------------------
+TAA_NO MDS_NO TSX_CTRL_MSR TSX state VERW can clear TAA mitigation TAA mitigation
+ after bootup CPU buffers tsx_async_abort=off tsx_async_abort=full
+========= ========= ============ ============ ============== =================== ======================
+ 0 0 0 HW default Yes Same as MDS Same as MDS
+ 0 0 1 Invalid case Invalid case Invalid case Invalid case
+ 0 1 0 HW default No Need ucode update Need ucode update
+ 0 1 1 Disabled Yes TSX disabled TSX disabled
+ 1 X 1 Disabled X None needed None needed
+========= ========= ============ ============ ============== =================== ======================
+
+2. "tsx=on"
+
+========= ========= ============ ============ ============== =================== ======================
+MSR_IA32_ARCH_CAPABILITIES bits Result with cmdline tsx=on
+---------------------------------- -------------------------------------------------------------------------
+TAA_NO MDS_NO TSX_CTRL_MSR TSX state VERW can clear TAA mitigation TAA mitigation
+ after bootup CPU buffers tsx_async_abort=off tsx_async_abort=full
+========= ========= ============ ============ ============== =================== ======================
+ 0 0 0 HW default Yes Same as MDS Same as MDS
+ 0 0 1 Invalid case Invalid case Invalid case Invalid case
+ 0 1 0 HW default No Need ucode update Need ucode update
+ 0 1 1 Enabled Yes None Same as MDS
+ 1 X 1 Enabled X None needed None needed
+========= ========= ============ ============ ============== =================== ======================
+
+3. "tsx=auto"
+
+========= ========= ============ ============ ============== =================== ======================
+MSR_IA32_ARCH_CAPABILITIES bits Result with cmdline tsx=auto
+---------------------------------- -------------------------------------------------------------------------
+TAA_NO MDS_NO TSX_CTRL_MSR TSX state VERW can clear TAA mitigation TAA mitigation
+ after bootup CPU buffers tsx_async_abort=off tsx_async_abort=full
+========= ========= ============ ============ ============== =================== ======================
+ 0 0 0 HW default Yes Same as MDS Same as MDS
+ 0 0 1 Invalid case Invalid case Invalid case Invalid case
+ 0 1 0 HW default No Need ucode update Need ucode update
+ 0 1 1 Disabled Yes TSX disabled TSX disabled
+ 1 X 1 Enabled X None needed None needed
+========= ========= ============ ============ ============== =================== ======================
+
+In the tables, TSX_CTRL_MSR is a new bit in MSR_IA32_ARCH_CAPABILITIES that
+indicates whether MSR_IA32_TSX_CTRL is supported.
+
+There are two control bits in IA32_TSX_CTRL MSR:
+
+ Bit 0: When set it disables the Restricted Transactional Memory (RTM)
+ sub-feature of TSX (will force all transactions to abort on the
+ XBEGIN instruction).
+
+ Bit 1: When set it disables the enumeration of the RTM and HLE feature
+ (i.e. it will make CPUID(EAX=7).EBX{bit4} and
+ CPUID(EAX=7).EBX{bit11} read as 0).
diff --git a/MAINTAINERS b/MAINTAINERS
index 245bef0..40f2eb2 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3053,6 +3053,7 @@
R: Martin KaFai Lau <kafai@fb.com>
R: Song Liu <songliubraving@fb.com>
R: Yonghong Song <yhs@fb.com>
+R: Andrii Nakryiko <andriin@fb.com>
L: netdev@vger.kernel.org
L: bpf@vger.kernel.org
T: git git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf.git
@@ -3260,7 +3261,6 @@
F: drivers/cpufreq/bmips-cpufreq.c
BROADCOM BMIPS MIPS ARCHITECTURE
-M: Kevin Cernekee <cernekee@gmail.com>
M: Florian Fainelli <f.fainelli@gmail.com>
L: bcm-kernel-feedback-list@broadcom.com
L: linux-mips@vger.kernel.org
@@ -3737,7 +3737,6 @@
CAVIUM THUNDERX2 ARM64 SOC
M: Robert Richter <rrichter@cavium.com>
-M: Jayachandran C <jnair@caviumnetworks.com>
L: linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
S: Maintained
F: arch/arm64/boot/dts/cavium/thunder2-99xx*
@@ -4270,14 +4269,13 @@
F: include/linux/sched/cpufreq.h
F: tools/testing/selftests/cpufreq/
-CPU FREQUENCY DRIVERS - ARM BIG LITTLE
+CPU FREQUENCY DRIVERS - VEXPRESS SPC ARM BIG LITTLE
M: Viresh Kumar <viresh.kumar@linaro.org>
M: Sudeep Holla <sudeep.holla@arm.com>
L: linux-pm@vger.kernel.org
W: http://www.arm.com/products/processors/technologies/biglittleprocessing.php
S: Maintained
-F: drivers/cpufreq/arm_big_little.h
-F: drivers/cpufreq/arm_big_little.c
+F: drivers/cpufreq/vexpress-spc-cpufreq.c
CPU POWER MONITORING SUBSYSTEM
M: Thomas Renninger <trenn@suse.com>
@@ -8300,11 +8298,14 @@
INTEL IOMMU (VT-d)
M: David Woodhouse <dwmw2@infradead.org>
+M: Lu Baolu <baolu.lu@linux.intel.com>
L: iommu@lists.linux-foundation.org
-T: git git://git.infradead.org/iommu-2.6.git
+T: git git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu.git
S: Supported
-F: drivers/iommu/intel-iommu.c
+F: drivers/iommu/dmar.c
+F: drivers/iommu/intel*.[ch]
F: include/linux/intel-iommu.h
+F: include/linux/intel-svm.h
INTEL IOP-ADMA DMA DRIVER
R: Dan Williams <dan.j.williams@intel.com>
@@ -10520,8 +10521,12 @@
F: Documentation/core-api/boot-time-mm.rst
MEMORY MANAGEMENT
+M: Andrew Morton <akpm@linux-foundation.org>
L: linux-mm@kvack.org
W: http://www.linux-mm.org
+T: quilt https://ozlabs.org/~akpm/mmotm/
+T: quilt https://ozlabs.org/~akpm/mmots/
+T: git git://github.com/hnaz/linux-mm.git
S: Maintained
F: include/linux/mm.h
F: include/linux/gfp.h
@@ -18035,6 +18040,7 @@
ZSWAP COMPRESSED SWAP CACHING
M: Seth Jennings <sjenning@redhat.com>
M: Dan Streetman <ddstreet@ieee.org>
+M: Vitaly Wool <vitaly.wool@konsulko.com>
L: linux-mm@kvack.org
S: Maintained
F: mm/zswap.c
diff --git a/Makefile b/Makefile
index b37d0e8..9cd2891 100644
--- a/Makefile
+++ b/Makefile
@@ -2,7 +2,7 @@
VERSION = 5
PATCHLEVEL = 4
SUBLEVEL = 0
-EXTRAVERSION = -rc6
+EXTRAVERSION = -rc8
NAME = Kleptomaniac Octopus
# *DOCUMENTATION*
@@ -917,6 +917,9 @@
LDFLAGS_vmlinux += --pack-dyn-relocs=relr
endif
+# make the checker run with the right architecture
+CHECKFLAGS += --arch=$(ARCH)
+
# insure the checker run with the right endianness
CHECKFLAGS += $(if $(CONFIG_CPU_BIG_ENDIAN),-mbig-endian,-mlittle-endian)
diff --git a/arch/arm/boot/dts/am3517.dtsi b/arch/arm/boot/dts/am3517.dtsi
index bf30020..76f819f 100644
--- a/arch/arm/boot/dts/am3517.dtsi
+++ b/arch/arm/boot/dts/am3517.dtsi
@@ -16,6 +16,37 @@
can = &hecc;
};
+ cpus {
+ cpu: cpu@0 {
+ /* Based on OMAP3630 variants OPP50 and OPP100 */
+ operating-points-v2 = <&cpu0_opp_table>;
+
+ clock-latency = <300000>; /* From legacy driver */
+ };
+ };
+
+ cpu0_opp_table: opp-table {
+ compatible = "operating-points-v2-ti-cpu";
+ syscon = <&scm_conf>;
+ /*
+ * AM3517 TRM only lists 600MHz @ 1.2V, but omap36xx
+ * appear to operate at 300MHz as well. Since AM3517 only
+ * lists one operating voltage, it will remain fixed at 1.2V
+ */
+ opp50-300000000 {
+ opp-hz = /bits/ 64 <300000000>;
+ opp-microvolt = <1200000>;
+ opp-supported-hw = <0xffffffff 0xffffffff>;
+ opp-suspend;
+ };
+
+ opp100-600000000 {
+ opp-hz = /bits/ 64 <600000000>;
+ opp-microvolt = <1200000>;
+ opp-supported-hw = <0xffffffff 0xffffffff>;
+ };
+ };
+
ocp@68000000 {
am35x_otg_hs: am35x_otg_hs@5c040000 {
compatible = "ti,omap3-musb";
diff --git a/arch/arm/boot/dts/am3517_mt_ventoux.dts b/arch/arm/boot/dts/am3517_mt_ventoux.dts
index e507e4a..e7d7124 100644
--- a/arch/arm/boot/dts/am3517_mt_ventoux.dts
+++ b/arch/arm/boot/dts/am3517_mt_ventoux.dts
@@ -8,7 +8,7 @@
/ {
model = "TeeJet Mt.Ventoux";
- compatible = "teejet,mt_ventoux", "ti,omap3";
+ compatible = "teejet,mt_ventoux", "ti,am3517", "ti,omap3";
memory@80000000 {
device_type = "memory";
diff --git a/arch/arm/boot/dts/imx6-logicpd-baseboard.dtsi b/arch/arm/boot/dts/imx6-logicpd-baseboard.dtsi
index 2a6ce87..9e027b9 100644
--- a/arch/arm/boot/dts/imx6-logicpd-baseboard.dtsi
+++ b/arch/arm/boot/dts/imx6-logicpd-baseboard.dtsi
@@ -328,6 +328,10 @@
pinctrl-0 = <&pinctrl_pwm3>;
};
+&snvs_pwrkey {
+ status = "okay";
+};
+
&ssi2 {
status = "okay";
};
diff --git a/arch/arm/boot/dts/imx6qdl-sabreauto.dtsi b/arch/arm/boot/dts/imx6qdl-sabreauto.dtsi
index f3404dd..cf62846 100644
--- a/arch/arm/boot/dts/imx6qdl-sabreauto.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-sabreauto.dtsi
@@ -230,6 +230,8 @@
accelerometer@1c {
compatible = "fsl,mma8451";
reg = <0x1c>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_mma8451_int>;
interrupt-parent = <&gpio6>;
interrupts = <31 IRQ_TYPE_LEVEL_LOW>;
};
@@ -628,6 +630,12 @@
>;
};
+ pinctrl_mma8451_int: mma8451intgrp {
+ fsl,pins = <
+ MX6QDL_PAD_EIM_BCLK__GPIO6_IO31 0xb0b1
+ >;
+ };
+
pinctrl_pwm3: pwm1grp {
fsl,pins = <
MX6QDL_PAD_SD4_DAT1__PWM3_OUT 0x1b0b1
diff --git a/arch/arm/boot/dts/logicpd-som-lv-35xx-devkit.dts b/arch/arm/boot/dts/logicpd-som-lv-35xx-devkit.dts
index f7a841a..2a0a98f 100644
--- a/arch/arm/boot/dts/logicpd-som-lv-35xx-devkit.dts
+++ b/arch/arm/boot/dts/logicpd-som-lv-35xx-devkit.dts
@@ -9,5 +9,5 @@
/ {
model = "LogicPD Zoom OMAP35xx SOM-LV Development Kit";
- compatible = "logicpd,dm3730-som-lv-devkit", "ti,omap3";
+ compatible = "logicpd,dm3730-som-lv-devkit", "ti,omap3430", "ti,omap3";
};
diff --git a/arch/arm/boot/dts/logicpd-torpedo-35xx-devkit.dts b/arch/arm/boot/dts/logicpd-torpedo-35xx-devkit.dts
index 7675bc3..57bae2a 100644
--- a/arch/arm/boot/dts/logicpd-torpedo-35xx-devkit.dts
+++ b/arch/arm/boot/dts/logicpd-torpedo-35xx-devkit.dts
@@ -9,5 +9,5 @@
/ {
model = "LogicPD Zoom OMAP35xx Torpedo Development Kit";
- compatible = "logicpd,dm3730-torpedo-devkit", "ti,omap3";
+ compatible = "logicpd,dm3730-torpedo-devkit", "ti,omap3430", "ti,omap3";
};
diff --git a/arch/arm/boot/dts/omap3-beagle-xm.dts b/arch/arm/boot/dts/omap3-beagle-xm.dts
index 1aa99fc..125ed93 100644
--- a/arch/arm/boot/dts/omap3-beagle-xm.dts
+++ b/arch/arm/boot/dts/omap3-beagle-xm.dts
@@ -8,7 +8,7 @@
/ {
model = "TI OMAP3 BeagleBoard xM";
- compatible = "ti,omap3-beagle-xm", "ti,omap36xx", "ti,omap3";
+ compatible = "ti,omap3-beagle-xm", "ti,omap3630", "ti,omap36xx", "ti,omap3";
cpus {
cpu@0 {
diff --git a/arch/arm/boot/dts/omap3-beagle.dts b/arch/arm/boot/dts/omap3-beagle.dts
index e3df3c1..4ed3f93 100644
--- a/arch/arm/boot/dts/omap3-beagle.dts
+++ b/arch/arm/boot/dts/omap3-beagle.dts
@@ -8,7 +8,7 @@
/ {
model = "TI OMAP3 BeagleBoard";
- compatible = "ti,omap3-beagle", "ti,omap3";
+ compatible = "ti,omap3-beagle", "ti,omap3430", "ti,omap3";
cpus {
cpu@0 {
diff --git a/arch/arm/boot/dts/omap3-cm-t3530.dts b/arch/arm/boot/dts/omap3-cm-t3530.dts
index 76e52c7..32dbaea 100644
--- a/arch/arm/boot/dts/omap3-cm-t3530.dts
+++ b/arch/arm/boot/dts/omap3-cm-t3530.dts
@@ -9,7 +9,7 @@
/ {
model = "CompuLab CM-T3530";
- compatible = "compulab,omap3-cm-t3530", "ti,omap34xx", "ti,omap3";
+ compatible = "compulab,omap3-cm-t3530", "ti,omap3430", "ti,omap34xx", "ti,omap3";
/* Regulator to trigger the reset signal of the Wifi module */
mmc2_sdio_reset: regulator-mmc2-sdio-reset {
diff --git a/arch/arm/boot/dts/omap3-cm-t3730.dts b/arch/arm/boot/dts/omap3-cm-t3730.dts
index 6e944df..683819b 100644
--- a/arch/arm/boot/dts/omap3-cm-t3730.dts
+++ b/arch/arm/boot/dts/omap3-cm-t3730.dts
@@ -9,7 +9,7 @@
/ {
model = "CompuLab CM-T3730";
- compatible = "compulab,omap3-cm-t3730", "ti,omap36xx", "ti,omap3";
+ compatible = "compulab,omap3-cm-t3730", "ti,omap3630", "ti,omap36xx", "ti,omap3";
wl12xx_vmmc2: wl12xx_vmmc2 {
compatible = "regulator-fixed";
diff --git a/arch/arm/boot/dts/omap3-devkit8000-lcd43.dts b/arch/arm/boot/dts/omap3-devkit8000-lcd43.dts
index a80fc60..afed850 100644
--- a/arch/arm/boot/dts/omap3-devkit8000-lcd43.dts
+++ b/arch/arm/boot/dts/omap3-devkit8000-lcd43.dts
@@ -11,7 +11,7 @@
#include "omap3-devkit8000-lcd-common.dtsi"
/ {
model = "TimLL OMAP3 Devkit8000 with 4.3'' LCD panel";
- compatible = "timll,omap3-devkit8000", "ti,omap3";
+ compatible = "timll,omap3-devkit8000", "ti,omap3430", "ti,omap3";
lcd0: display {
panel-timing {
diff --git a/arch/arm/boot/dts/omap3-devkit8000-lcd70.dts b/arch/arm/boot/dts/omap3-devkit8000-lcd70.dts
index 0753776..07c51a1 100644
--- a/arch/arm/boot/dts/omap3-devkit8000-lcd70.dts
+++ b/arch/arm/boot/dts/omap3-devkit8000-lcd70.dts
@@ -11,7 +11,7 @@
#include "omap3-devkit8000-lcd-common.dtsi"
/ {
model = "TimLL OMAP3 Devkit8000 with 7.0'' LCD panel";
- compatible = "timll,omap3-devkit8000", "ti,omap3";
+ compatible = "timll,omap3-devkit8000", "ti,omap3430", "ti,omap3";
lcd0: display {
panel-timing {
diff --git a/arch/arm/boot/dts/omap3-devkit8000.dts b/arch/arm/boot/dts/omap3-devkit8000.dts
index faafc48..162d072 100644
--- a/arch/arm/boot/dts/omap3-devkit8000.dts
+++ b/arch/arm/boot/dts/omap3-devkit8000.dts
@@ -7,7 +7,7 @@
#include "omap3-devkit8000-common.dtsi"
/ {
model = "TimLL OMAP3 Devkit8000";
- compatible = "timll,omap3-devkit8000", "ti,omap3";
+ compatible = "timll,omap3-devkit8000", "ti,omap3430", "ti,omap3";
aliases {
display1 = &dvi0;
diff --git a/arch/arm/boot/dts/omap3-gta04.dtsi b/arch/arm/boot/dts/omap3-gta04.dtsi
index b6ef1a7..409a758 100644
--- a/arch/arm/boot/dts/omap3-gta04.dtsi
+++ b/arch/arm/boot/dts/omap3-gta04.dtsi
@@ -11,7 +11,7 @@
/ {
model = "OMAP3 GTA04";
- compatible = "ti,omap3-gta04", "ti,omap36xx", "ti,omap3";
+ compatible = "ti,omap3-gta04", "ti,omap3630", "ti,omap36xx", "ti,omap3";
cpus {
cpu@0 {
diff --git a/arch/arm/boot/dts/omap3-ha-lcd.dts b/arch/arm/boot/dts/omap3-ha-lcd.dts
index badb9b3..c9ecbc45 100644
--- a/arch/arm/boot/dts/omap3-ha-lcd.dts
+++ b/arch/arm/boot/dts/omap3-ha-lcd.dts
@@ -8,7 +8,7 @@
/ {
model = "TI OMAP3 HEAD acoustics LCD-baseboard with TAO3530 SOM";
- compatible = "headacoustics,omap3-ha-lcd", "technexion,omap3-tao3530", "ti,omap34xx", "ti,omap3";
+ compatible = "headacoustics,omap3-ha-lcd", "technexion,omap3-tao3530", "ti,omap3430", "ti,omap34xx", "ti,omap3";
};
&omap3_pmx_core {
diff --git a/arch/arm/boot/dts/omap3-ha.dts b/arch/arm/boot/dts/omap3-ha.dts
index a536525..35c4e15 100644
--- a/arch/arm/boot/dts/omap3-ha.dts
+++ b/arch/arm/boot/dts/omap3-ha.dts
@@ -8,7 +8,7 @@
/ {
model = "TI OMAP3 HEAD acoustics baseboard with TAO3530 SOM";
- compatible = "headacoustics,omap3-ha", "technexion,omap3-tao3530", "ti,omap34xx", "ti,omap3";
+ compatible = "headacoustics,omap3-ha", "technexion,omap3-tao3530", "ti,omap3430", "ti,omap34xx", "ti,omap3";
};
&omap3_pmx_core {
diff --git a/arch/arm/boot/dts/omap3-igep0020-rev-f.dts b/arch/arm/boot/dts/omap3-igep0020-rev-f.dts
index 03dcd05..d134ce1 100644
--- a/arch/arm/boot/dts/omap3-igep0020-rev-f.dts
+++ b/arch/arm/boot/dts/omap3-igep0020-rev-f.dts
@@ -10,7 +10,7 @@
/ {
model = "IGEPv2 Rev. F (TI OMAP AM/DM37x)";
- compatible = "isee,omap3-igep0020-rev-f", "ti,omap36xx", "ti,omap3";
+ compatible = "isee,omap3-igep0020-rev-f", "ti,omap3630", "ti,omap36xx", "ti,omap3";
/* Regulator to trigger the WL_EN signal of the Wifi module */
lbep5clwmc_wlen: regulator-lbep5clwmc-wlen {
diff --git a/arch/arm/boot/dts/omap3-igep0020.dts b/arch/arm/boot/dts/omap3-igep0020.dts
index 6d0519e..e341535 100644
--- a/arch/arm/boot/dts/omap3-igep0020.dts
+++ b/arch/arm/boot/dts/omap3-igep0020.dts
@@ -10,7 +10,7 @@
/ {
model = "IGEPv2 Rev. C (TI OMAP AM/DM37x)";
- compatible = "isee,omap3-igep0020", "ti,omap36xx", "ti,omap3";
+ compatible = "isee,omap3-igep0020", "ti,omap3630", "ti,omap36xx", "ti,omap3";
vmmcsdio_fixed: fixedregulator-mmcsdio {
compatible = "regulator-fixed";
diff --git a/arch/arm/boot/dts/omap3-igep0030-rev-g.dts b/arch/arm/boot/dts/omap3-igep0030-rev-g.dts
index 060acd1..9ca1d0f 100644
--- a/arch/arm/boot/dts/omap3-igep0030-rev-g.dts
+++ b/arch/arm/boot/dts/omap3-igep0030-rev-g.dts
@@ -10,7 +10,7 @@
/ {
model = "IGEP COM MODULE Rev. G (TI OMAP AM/DM37x)";
- compatible = "isee,omap3-igep0030-rev-g", "ti,omap36xx", "ti,omap3";
+ compatible = "isee,omap3-igep0030-rev-g", "ti,omap3630", "ti,omap36xx", "ti,omap3";
/* Regulator to trigger the WL_EN signal of the Wifi module */
lbep5clwmc_wlen: regulator-lbep5clwmc-wlen {
diff --git a/arch/arm/boot/dts/omap3-igep0030.dts b/arch/arm/boot/dts/omap3-igep0030.dts
index 25170bd..32f3103 100644
--- a/arch/arm/boot/dts/omap3-igep0030.dts
+++ b/arch/arm/boot/dts/omap3-igep0030.dts
@@ -10,7 +10,7 @@
/ {
model = "IGEP COM MODULE Rev. E (TI OMAP AM/DM37x)";
- compatible = "isee,omap3-igep0030", "ti,omap36xx", "ti,omap3";
+ compatible = "isee,omap3-igep0030", "ti,omap3630", "ti,omap36xx", "ti,omap3";
vmmcsdio_fixed: fixedregulator-mmcsdio {
compatible = "regulator-fixed";
diff --git a/arch/arm/boot/dts/omap3-ldp.dts b/arch/arm/boot/dts/omap3-ldp.dts
index 9a5fde2..ec9ba04 100644
--- a/arch/arm/boot/dts/omap3-ldp.dts
+++ b/arch/arm/boot/dts/omap3-ldp.dts
@@ -10,7 +10,7 @@
/ {
model = "TI OMAP3430 LDP (Zoom1 Labrador)";
- compatible = "ti,omap3-ldp", "ti,omap3";
+ compatible = "ti,omap3-ldp", "ti,omap3430", "ti,omap3";
memory@80000000 {
device_type = "memory";
diff --git a/arch/arm/boot/dts/omap3-lilly-a83x.dtsi b/arch/arm/boot/dts/omap3-lilly-a83x.dtsi
index c22833d..73d4778 100644
--- a/arch/arm/boot/dts/omap3-lilly-a83x.dtsi
+++ b/arch/arm/boot/dts/omap3-lilly-a83x.dtsi
@@ -7,7 +7,7 @@
/ {
model = "INCOstartec LILLY-A83X module (DM3730)";
- compatible = "incostartec,omap3-lilly-a83x", "ti,omap36xx", "ti,omap3";
+ compatible = "incostartec,omap3-lilly-a83x", "ti,omap3630", "ti,omap36xx", "ti,omap3";
chosen {
bootargs = "console=ttyO0,115200n8 vt.global_cursor_default=0 consoleblank=0";
diff --git a/arch/arm/boot/dts/omap3-lilly-dbb056.dts b/arch/arm/boot/dts/omap3-lilly-dbb056.dts
index fec3354..ecb4ef7 100644
--- a/arch/arm/boot/dts/omap3-lilly-dbb056.dts
+++ b/arch/arm/boot/dts/omap3-lilly-dbb056.dts
@@ -8,7 +8,7 @@
/ {
model = "INCOstartec LILLY-DBB056 (DM3730)";
- compatible = "incostartec,omap3-lilly-dbb056", "incostartec,omap3-lilly-a83x", "ti,omap36xx", "ti,omap3";
+ compatible = "incostartec,omap3-lilly-dbb056", "incostartec,omap3-lilly-a83x", "ti,omap3630", "ti,omap36xx", "ti,omap3";
};
&twl {
diff --git a/arch/arm/boot/dts/omap3-n9.dts b/arch/arm/boot/dts/omap3-n9.dts
index 74c0ff2..2495a69 100644
--- a/arch/arm/boot/dts/omap3-n9.dts
+++ b/arch/arm/boot/dts/omap3-n9.dts
@@ -12,7 +12,7 @@
/ {
model = "Nokia N9";
- compatible = "nokia,omap3-n9", "ti,omap36xx", "ti,omap3";
+ compatible = "nokia,omap3-n9", "ti,omap3630", "ti,omap36xx", "ti,omap3";
};
&i2c2 {
diff --git a/arch/arm/boot/dts/omap3-n950-n9.dtsi b/arch/arm/boot/dts/omap3-n950-n9.dtsi
index 6681d45..a075b63 100644
--- a/arch/arm/boot/dts/omap3-n950-n9.dtsi
+++ b/arch/arm/boot/dts/omap3-n950-n9.dtsi
@@ -11,13 +11,6 @@
cpus {
cpu@0 {
cpu0-supply = <&vcc>;
- operating-points = <
- /* kHz uV */
- 300000 1012500
- 600000 1200000
- 800000 1325000
- 1000000 1375000
- >;
};
};
diff --git a/arch/arm/boot/dts/omap3-n950.dts b/arch/arm/boot/dts/omap3-n950.dts
index 9886bf8..31d47a1 100644
--- a/arch/arm/boot/dts/omap3-n950.dts
+++ b/arch/arm/boot/dts/omap3-n950.dts
@@ -12,7 +12,7 @@
/ {
model = "Nokia N950";
- compatible = "nokia,omap3-n950", "ti,omap36xx", "ti,omap3";
+ compatible = "nokia,omap3-n950", "ti,omap3630", "ti,omap36xx", "ti,omap3";
keys {
compatible = "gpio-keys";
diff --git a/arch/arm/boot/dts/omap3-overo-storm-alto35.dts b/arch/arm/boot/dts/omap3-overo-storm-alto35.dts
index 1833857..7f04dfa 100644
--- a/arch/arm/boot/dts/omap3-overo-storm-alto35.dts
+++ b/arch/arm/boot/dts/omap3-overo-storm-alto35.dts
@@ -14,5 +14,5 @@
/ {
model = "OMAP36xx/AM37xx/DM37xx Gumstix Overo on Alto35";
- compatible = "gumstix,omap3-overo-alto35", "gumstix,omap3-overo", "ti,omap36xx", "ti,omap3";
+ compatible = "gumstix,omap3-overo-alto35", "gumstix,omap3-overo", "ti,omap3630", "ti,omap36xx", "ti,omap3";
};
diff --git a/arch/arm/boot/dts/omap3-overo-storm-chestnut43.dts b/arch/arm/boot/dts/omap3-overo-storm-chestnut43.dts
index f204c8a..bc5a04e 100644
--- a/arch/arm/boot/dts/omap3-overo-storm-chestnut43.dts
+++ b/arch/arm/boot/dts/omap3-overo-storm-chestnut43.dts
@@ -14,7 +14,7 @@
/ {
model = "OMAP36xx/AM37xx/DM37xx Gumstix Overo on Chestnut43";
- compatible = "gumstix,omap3-overo-chestnut43", "gumstix,omap3-overo", "ti,omap36xx", "ti,omap3";
+ compatible = "gumstix,omap3-overo-chestnut43", "gumstix,omap3-overo", "ti,omap3630", "ti,omap36xx", "ti,omap3";
};
&omap3_pmx_core2 {
diff --git a/arch/arm/boot/dts/omap3-overo-storm-gallop43.dts b/arch/arm/boot/dts/omap3-overo-storm-gallop43.dts
index c633f7c..065c31c 100644
--- a/arch/arm/boot/dts/omap3-overo-storm-gallop43.dts
+++ b/arch/arm/boot/dts/omap3-overo-storm-gallop43.dts
@@ -14,7 +14,7 @@
/ {
model = "OMAP36xx/AM37xx/DM37xx Gumstix Overo on Gallop43";
- compatible = "gumstix,omap3-overo-gallop43", "gumstix,omap3-overo", "ti,omap36xx", "ti,omap3";
+ compatible = "gumstix,omap3-overo-gallop43", "gumstix,omap3-overo", "ti,omap3630", "ti,omap36xx", "ti,omap3";
};
&omap3_pmx_core2 {
diff --git a/arch/arm/boot/dts/omap3-overo-storm-palo35.dts b/arch/arm/boot/dts/omap3-overo-storm-palo35.dts
index fb88ebc9..e38c1c5 100644
--- a/arch/arm/boot/dts/omap3-overo-storm-palo35.dts
+++ b/arch/arm/boot/dts/omap3-overo-storm-palo35.dts
@@ -14,7 +14,7 @@
/ {
model = "OMAP36xx/AM37xx/DM37xx Gumstix Overo on Palo35";
- compatible = "gumstix,omap3-overo-palo35", "gumstix,omap3-overo", "ti,omap36xx", "ti,omap3";
+ compatible = "gumstix,omap3-overo-palo35", "gumstix,omap3-overo", "ti,omap3630", "ti,omap36xx", "ti,omap3";
};
&omap3_pmx_core2 {
diff --git a/arch/arm/boot/dts/omap3-overo-storm-palo43.dts b/arch/arm/boot/dts/omap3-overo-storm-palo43.dts
index 76cca00d..e6dc231 100644
--- a/arch/arm/boot/dts/omap3-overo-storm-palo43.dts
+++ b/arch/arm/boot/dts/omap3-overo-storm-palo43.dts
@@ -14,7 +14,7 @@
/ {
model = "OMAP36xx/AM37xx/DM37xx Gumstix Overo on Palo43";
- compatible = "gumstix,omap3-overo-palo43", "gumstix,omap3-overo", "ti,omap36xx", "ti,omap3";
+ compatible = "gumstix,omap3-overo-palo43", "gumstix,omap3-overo", "ti,omap3630", "ti,omap36xx", "ti,omap3";
};
&omap3_pmx_core2 {
diff --git a/arch/arm/boot/dts/omap3-overo-storm-summit.dts b/arch/arm/boot/dts/omap3-overo-storm-summit.dts
index cc081a9..587c08c 100644
--- a/arch/arm/boot/dts/omap3-overo-storm-summit.dts
+++ b/arch/arm/boot/dts/omap3-overo-storm-summit.dts
@@ -14,7 +14,7 @@
/ {
model = "OMAP36xx/AM37xx/DM37xx Gumstix Overo on Summit";
- compatible = "gumstix,omap3-overo-summit", "gumstix,omap3-overo", "ti,omap36xx", "ti,omap3";
+ compatible = "gumstix,omap3-overo-summit", "gumstix,omap3-overo", "ti,omap3630", "ti,omap36xx", "ti,omap3";
};
&omap3_pmx_core2 {
diff --git a/arch/arm/boot/dts/omap3-overo-storm-tobi.dts b/arch/arm/boot/dts/omap3-overo-storm-tobi.dts
index 1de41c0..f57de60 100644
--- a/arch/arm/boot/dts/omap3-overo-storm-tobi.dts
+++ b/arch/arm/boot/dts/omap3-overo-storm-tobi.dts
@@ -14,6 +14,6 @@
/ {
model = "OMAP36xx/AM37xx/DM37xx Gumstix Overo on Tobi";
- compatible = "gumstix,omap3-overo-tobi", "gumstix,omap3-overo", "ti,omap36xx", "ti,omap3";
+ compatible = "gumstix,omap3-overo-tobi", "gumstix,omap3-overo", "ti,omap3630", "ti,omap36xx", "ti,omap3";
};
diff --git a/arch/arm/boot/dts/omap3-overo-storm-tobiduo.dts b/arch/arm/boot/dts/omap3-overo-storm-tobiduo.dts
index 9ed1311..281af6c 100644
--- a/arch/arm/boot/dts/omap3-overo-storm-tobiduo.dts
+++ b/arch/arm/boot/dts/omap3-overo-storm-tobiduo.dts
@@ -14,5 +14,5 @@
/ {
model = "OMAP36xx/AM37xx/DM37xx Gumstix Overo on TobiDuo";
- compatible = "gumstix,omap3-overo-tobiduo", "gumstix,omap3-overo", "ti,omap36xx", "ti,omap3";
+ compatible = "gumstix,omap3-overo-tobiduo", "gumstix,omap3-overo", "ti,omap3630", "ti,omap36xx", "ti,omap3";
};
diff --git a/arch/arm/boot/dts/omap3-pandora-1ghz.dts b/arch/arm/boot/dts/omap3-pandora-1ghz.dts
index 81b957f..ea50995 100644
--- a/arch/arm/boot/dts/omap3-pandora-1ghz.dts
+++ b/arch/arm/boot/dts/omap3-pandora-1ghz.dts
@@ -16,7 +16,7 @@
/ {
model = "Pandora Handheld Console 1GHz";
- compatible = "openpandora,omap3-pandora-1ghz", "ti,omap36xx", "ti,omap3";
+ compatible = "openpandora,omap3-pandora-1ghz", "ti,omap3630", "ti,omap36xx", "ti,omap3";
};
&omap3_pmx_core2 {
diff --git a/arch/arm/boot/dts/omap3-sbc-t3530.dts b/arch/arm/boot/dts/omap3-sbc-t3530.dts
index ae96002..24bf3fd 100644
--- a/arch/arm/boot/dts/omap3-sbc-t3530.dts
+++ b/arch/arm/boot/dts/omap3-sbc-t3530.dts
@@ -8,7 +8,7 @@
/ {
model = "CompuLab SBC-T3530 with CM-T3530";
- compatible = "compulab,omap3-sbc-t3530", "compulab,omap3-cm-t3530", "ti,omap34xx", "ti,omap3";
+ compatible = "compulab,omap3-sbc-t3530", "compulab,omap3-cm-t3530", "ti,omap3430", "ti,omap34xx", "ti,omap3";
aliases {
display0 = &dvi0;
diff --git a/arch/arm/boot/dts/omap3-sbc-t3730.dts b/arch/arm/boot/dts/omap3-sbc-t3730.dts
index 7de6df1..eb3893b 100644
--- a/arch/arm/boot/dts/omap3-sbc-t3730.dts
+++ b/arch/arm/boot/dts/omap3-sbc-t3730.dts
@@ -8,7 +8,7 @@
/ {
model = "CompuLab SBC-T3730 with CM-T3730";
- compatible = "compulab,omap3-sbc-t3730", "compulab,omap3-cm-t3730", "ti,omap36xx", "ti,omap3";
+ compatible = "compulab,omap3-sbc-t3730", "compulab,omap3-cm-t3730", "ti,omap3630", "ti,omap36xx", "ti,omap3";
aliases {
display0 = &dvi0;
diff --git a/arch/arm/boot/dts/omap3-sniper.dts b/arch/arm/boot/dts/omap3-sniper.dts
index 40a8733..b6879cd 100644
--- a/arch/arm/boot/dts/omap3-sniper.dts
+++ b/arch/arm/boot/dts/omap3-sniper.dts
@@ -9,7 +9,7 @@
/ {
model = "LG Optimus Black";
- compatible = "lg,omap3-sniper", "ti,omap36xx", "ti,omap3";
+ compatible = "lg,omap3-sniper", "ti,omap3630", "ti,omap36xx", "ti,omap3";
cpus {
cpu@0 {
diff --git a/arch/arm/boot/dts/omap3-thunder.dts b/arch/arm/boot/dts/omap3-thunder.dts
index 6276e70..64221e3 100644
--- a/arch/arm/boot/dts/omap3-thunder.dts
+++ b/arch/arm/boot/dts/omap3-thunder.dts
@@ -8,7 +8,7 @@
/ {
model = "TI OMAP3 Thunder baseboard with TAO3530 SOM";
- compatible = "technexion,omap3-thunder", "technexion,omap3-tao3530", "ti,omap34xx", "ti,omap3";
+ compatible = "technexion,omap3-thunder", "technexion,omap3-tao3530", "ti,omap3430", "ti,omap34xx", "ti,omap3";
};
&omap3_pmx_core {
diff --git a/arch/arm/boot/dts/omap3-zoom3.dts b/arch/arm/boot/dts/omap3-zoom3.dts
index db3a2fe..d240e39 100644
--- a/arch/arm/boot/dts/omap3-zoom3.dts
+++ b/arch/arm/boot/dts/omap3-zoom3.dts
@@ -9,7 +9,7 @@
/ {
model = "TI Zoom3";
- compatible = "ti,omap3-zoom3", "ti,omap36xx", "ti,omap3";
+ compatible = "ti,omap3-zoom3", "ti,omap3630", "ti,omap36xx", "ti,omap3";
cpus {
cpu@0 {
diff --git a/arch/arm/boot/dts/omap3430-sdp.dts b/arch/arm/boot/dts/omap3430-sdp.dts
index 0abd611..7bfde8a 100644
--- a/arch/arm/boot/dts/omap3430-sdp.dts
+++ b/arch/arm/boot/dts/omap3430-sdp.dts
@@ -8,7 +8,7 @@
/ {
model = "TI OMAP3430 SDP";
- compatible = "ti,omap3430-sdp", "ti,omap3";
+ compatible = "ti,omap3430-sdp", "ti,omap3430", "ti,omap3";
memory@80000000 {
device_type = "memory";
diff --git a/arch/arm/boot/dts/omap34xx.dtsi b/arch/arm/boot/dts/omap34xx.dtsi
index 7b09cbe..c4dd980 100644
--- a/arch/arm/boot/dts/omap34xx.dtsi
+++ b/arch/arm/boot/dts/omap34xx.dtsi
@@ -16,19 +16,67 @@
/ {
cpus {
cpu: cpu@0 {
- /* OMAP343x/OMAP35xx variants OPP1-5 */
- operating-points = <
- /* kHz uV */
- 125000 975000
- 250000 1075000
- 500000 1200000
- 550000 1270000
- 600000 1350000
- >;
+ /* OMAP343x/OMAP35xx variants OPP1-6 */
+ operating-points-v2 = <&cpu0_opp_table>;
+
clock-latency = <300000>; /* From legacy driver */
};
};
+ /* see Documentation/devicetree/bindings/opp/opp.txt */
+ cpu0_opp_table: opp-table {
+ compatible = "operating-points-v2-ti-cpu";
+ syscon = <&scm_conf>;
+
+ opp1-125000000 {
+ opp-hz = /bits/ 64 <125000000>;
+ /*
+ * we currently only select the max voltage from table
+ * Table 3-3 of the omap3530 Data sheet (SPRS507F).
+ * Format is: <target min max>
+ */
+ opp-microvolt = <975000 975000 975000>;
+ /*
+ * first value is silicon revision bit mask
+ * second one 720MHz Device Identification bit mask
+ */
+ opp-supported-hw = <0xffffffff 3>;
+ };
+
+ opp2-250000000 {
+ opp-hz = /bits/ 64 <250000000>;
+ opp-microvolt = <1075000 1075000 1075000>;
+ opp-supported-hw = <0xffffffff 3>;
+ opp-suspend;
+ };
+
+ opp3-500000000 {
+ opp-hz = /bits/ 64 <500000000>;
+ opp-microvolt = <1200000 1200000 1200000>;
+ opp-supported-hw = <0xffffffff 3>;
+ };
+
+ opp4-550000000 {
+ opp-hz = /bits/ 64 <550000000>;
+ opp-microvolt = <1275000 1275000 1275000>;
+ opp-supported-hw = <0xffffffff 3>;
+ };
+
+ opp5-600000000 {
+ opp-hz = /bits/ 64 <600000000>;
+ opp-microvolt = <1350000 1350000 1350000>;
+ opp-supported-hw = <0xffffffff 3>;
+ };
+
+ opp6-720000000 {
+ opp-hz = /bits/ 64 <720000000>;
+ opp-microvolt = <1350000 1350000 1350000>;
+ /* only high-speed grade omap3530 devices */
+ opp-supported-hw = <0xffffffff 2>;
+ turbo-mode;
+ };
+ };
+
ocp@68000000 {
omap3_pmx_core2: pinmux@480025d8 {
compatible = "ti,omap3-padconf", "pinctrl-single";
diff --git a/arch/arm/boot/dts/omap36xx.dtsi b/arch/arm/boot/dts/omap36xx.dtsi
index 1e552f0..c618cb2 100644
--- a/arch/arm/boot/dts/omap36xx.dtsi
+++ b/arch/arm/boot/dts/omap36xx.dtsi
@@ -19,18 +19,67 @@
};
cpus {
- /* OMAP3630/OMAP37xx 'standard device' variants OPP50 to OPP130 */
+ /* OMAP3630/OMAP37xx variants OPP50 to OPP130 and OPP1G */
cpu: cpu@0 {
- operating-points = <
- /* kHz uV */
- 300000 1012500
- 600000 1200000
- 800000 1325000
- >;
- clock-latency = <300000>; /* From legacy driver */
+ operating-points-v2 = <&cpu0_opp_table>;
+
+ vbb-supply = <&abb_mpu_iva>;
+ clock-latency = <300000>; /* From omap-cpufreq driver */
};
};
+ /* see Documentation/devicetree/bindings/opp/opp.txt */
+ cpu0_opp_table: opp-table {
+ compatible = "operating-points-v2-ti-cpu";
+ syscon = <&scm_conf>;
+
+ opp50-300000000 {
+ opp-hz = /bits/ 64 <300000000>;
+ /*
+ * we currently only select the max voltage from table
+ * Table 4-19 of the DM3730 Data sheet (SPRS685B)
+ * Format is: cpu0-supply: <target min max>
+ * vbb-supply: <target min max>
+ */
+ opp-microvolt = <1012500 1012500 1012500>,
+ <1012500 1012500 1012500>;
+ /*
+ * first value is silicon revision bit mask
+ * second one is "speed binned" bit mask
+ */
+ opp-supported-hw = <0xffffffff 3>;
+ opp-suspend;
+ };
+
+ opp100-600000000 {
+ opp-hz = /bits/ 64 <600000000>;
+ opp-microvolt = <1200000 1200000 1200000>,
+ <1200000 1200000 1200000>;
+ opp-supported-hw = <0xffffffff 3>;
+ };
+
+ opp130-800000000 {
+ opp-hz = /bits/ 64 <800000000>;
+ opp-microvolt = <1325000 1325000 1325000>,
+ <1325000 1325000 1325000>;
+ opp-supported-hw = <0xffffffff 3>;
+ };
+
+ opp1g-1000000000 {
+ opp-hz = /bits/ 64 <1000000000>;
+ opp-microvolt = <1375000 1375000 1375000>,
+ <1375000 1375000 1375000>;
+ /* only on am/dm37x with speed-binned bit set */
+ opp-supported-hw = <0xffffffff 2>;
+ turbo-mode;
+ };
+ };
+
+ opp_supply_mpu_iva: opp_supply {
+ compatible = "ti,omap-opp-supply";
+ ti,absolute-max-voltage-uv = <1375000>;
+ };
+
ocp@68000000 {
uart4: serial@49042000 {
compatible = "ti,omap3-uart";
diff --git a/arch/arm/boot/dts/stm32mp157c-ev1.dts b/arch/arm/boot/dts/stm32mp157c-ev1.dts
index 89d29b5..91fc0a3 100644
--- a/arch/arm/boot/dts/stm32mp157c-ev1.dts
+++ b/arch/arm/boot/dts/stm32mp157c-ev1.dts
@@ -183,14 +183,12 @@
ov5640: camera@3c {
compatible = "ovti,ov5640";
- pinctrl-names = "default";
- pinctrl-0 = <&ov5640_pins>;
reg = <0x3c>;
clocks = <&clk_ext_camera>;
clock-names = "xclk";
DOVDD-supply = <&v2v8>;
- powerdown-gpios = <&stmfx_pinctrl 18 GPIO_ACTIVE_HIGH>;
- reset-gpios = <&stmfx_pinctrl 19 GPIO_ACTIVE_LOW>;
+ powerdown-gpios = <&stmfx_pinctrl 18 (GPIO_ACTIVE_HIGH | GPIO_PUSH_PULL)>;
+ reset-gpios = <&stmfx_pinctrl 19 (GPIO_ACTIVE_LOW | GPIO_PUSH_PULL)>;
rotation = <180>;
status = "okay";
@@ -223,15 +221,8 @@
joystick_pins: joystick {
pins = "gpio0", "gpio1", "gpio2", "gpio3", "gpio4";
- drive-push-pull;
bias-pull-down;
};
-
- ov5640_pins: camera {
- pins = "agpio2", "agpio3"; /* stmfx pins 18 & 19 */
- drive-push-pull;
- output-low;
- };
};
};
};
diff --git a/arch/arm/boot/dts/stm32mp157c.dtsi b/arch/arm/boot/dts/stm32mp157c.dtsi
index 9b11654..f98e037 100644
--- a/arch/arm/boot/dts/stm32mp157c.dtsi
+++ b/arch/arm/boot/dts/stm32mp157c.dtsi
@@ -932,7 +932,7 @@
interrupt-names = "int0", "int1";
clocks = <&rcc CK_HSE>, <&rcc FDCAN_K>;
clock-names = "hclk", "cclk";
- bosch,mram-cfg = <0x1400 0 0 32 0 0 2 2>;
+ bosch,mram-cfg = <0x0 0 0 32 0 0 2 2>;
status = "disabled";
};
@@ -945,7 +945,7 @@
interrupt-names = "int0", "int1";
clocks = <&rcc CK_HSE>, <&rcc FDCAN_K>;
clock-names = "hclk", "cclk";
- bosch,mram-cfg = <0x0 0 0 32 0 0 2 2>;
+ bosch,mram-cfg = <0x1400 0 0 32 0 0 2 2>;
status = "disabled";
};
diff --git a/arch/arm/boot/dts/sun8i-a83t-tbs-a711.dts b/arch/arm/boot/dts/sun8i-a83t-tbs-a711.dts
index 568b90e..3bec3e0 100644
--- a/arch/arm/boot/dts/sun8i-a83t-tbs-a711.dts
+++ b/arch/arm/boot/dts/sun8i-a83t-tbs-a711.dts
@@ -192,6 +192,7 @@
vqmmc-supply = <®_dldo1>;
non-removable;
wakeup-source;
+ keep-power-in-suspend;
status = "okay";
brcmf: wifi@1 {
diff --git a/arch/arm/mach-imx/cpuidle-imx6q.c b/arch/arm/mach-imx/cpuidle-imx6q.c
index 39a7d93..24dd5bb 100644
--- a/arch/arm/mach-imx/cpuidle-imx6q.c
+++ b/arch/arm/mach-imx/cpuidle-imx6q.c
@@ -62,13 +62,13 @@ static struct cpuidle_driver imx6q_cpuidle_driver = {
*/
void imx6q_cpuidle_fec_irqs_used(void)
{
- imx6q_cpuidle_driver.states[1].disabled = true;
+ cpuidle_driver_state_disabled(&imx6q_cpuidle_driver, 1, true);
}
EXPORT_SYMBOL_GPL(imx6q_cpuidle_fec_irqs_used);
void imx6q_cpuidle_fec_irqs_unused(void)
{
- imx6q_cpuidle_driver.states[1].disabled = false;
+ cpuidle_driver_state_disabled(&imx6q_cpuidle_driver, 1, false);
}
EXPORT_SYMBOL_GPL(imx6q_cpuidle_fec_irqs_unused);
diff --git a/arch/arm/mach-sunxi/mc_smp.c b/arch/arm/mach-sunxi/mc_smp.c
index 239084c..26cbce1 100644
--- a/arch/arm/mach-sunxi/mc_smp.c
+++ b/arch/arm/mach-sunxi/mc_smp.c
@@ -481,14 +481,18 @@ static void sunxi_mc_smp_cpu_die(unsigned int l_cpu)
static int sunxi_cpu_powerdown(unsigned int cpu, unsigned int cluster)
{
u32 reg;
+ int gating_bit = cpu;
pr_debug("%s: cluster %u cpu %u\n", __func__, cluster, cpu);
if (cpu >= SUNXI_CPUS_PER_CLUSTER || cluster >= SUNXI_NR_CLUSTERS)
return -EINVAL;
+ if (is_a83t && cpu == 0)
+ gating_bit = 4;
+
/* gate processor power */
reg = readl(prcm_base + PRCM_PWROFF_GATING_REG(cluster));
- reg |= PRCM_PWROFF_GATING_REG_CORE(cpu);
+ reg |= PRCM_PWROFF_GATING_REG_CORE(gating_bit);
writel(reg, prcm_base + PRCM_PWROFF_GATING_REG(cluster));
udelay(20);
diff --git a/arch/arm/mach-tegra/cpuidle-tegra20.c b/arch/arm/mach-tegra/cpuidle-tegra20.c
index 2447427..69f3fa2 100644
--- a/arch/arm/mach-tegra/cpuidle-tegra20.c
+++ b/arch/arm/mach-tegra/cpuidle-tegra20.c
@@ -203,7 +203,7 @@ void tegra20_cpuidle_pcie_irqs_in_use(void)
{
pr_info_once(
"Disabling cpuidle LP2 state, since PCIe IRQs are in use\n");
- tegra_idle_driver.states[1].disabled = true;
+ cpuidle_driver_state_disabled(&tegra_idle_driver, 1, true);
}
int __init tegra20_cpuidle_init(void)
diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1028a-qds.dts b/arch/arm64/boot/dts/freescale/fsl-ls1028a-qds.dts
index d98346d..078a501 100644
--- a/arch/arm64/boot/dts/freescale/fsl-ls1028a-qds.dts
+++ b/arch/arm64/boot/dts/freescale/fsl-ls1028a-qds.dts
@@ -127,7 +127,7 @@
status = "okay";
i2c-mux@77 {
- compatible = "nxp,pca9847";
+ compatible = "nxp,pca9547";
reg = <0x77>;
#address-cells = <1>;
#size-cells = <0>;
diff --git a/arch/arm64/boot/dts/freescale/imx8mm.dtsi b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
index 58b8cd0..23c8fad 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
@@ -394,7 +394,7 @@
};
sdma2: dma-controller@302c0000 {
- compatible = "fsl,imx8mm-sdma", "fsl,imx7d-sdma";
+ compatible = "fsl,imx8mm-sdma", "fsl,imx8mq-sdma";
reg = <0x302c0000 0x10000>;
interrupts = <GIC_SPI 103 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clk IMX8MM_CLK_SDMA2_ROOT>,
@@ -405,7 +405,7 @@
};
sdma3: dma-controller@302b0000 {
- compatible = "fsl,imx8mm-sdma", "fsl,imx7d-sdma";
+ compatible = "fsl,imx8mm-sdma", "fsl,imx8mq-sdma";
reg = <0x302b0000 0x10000>;
interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clk IMX8MM_CLK_SDMA3_ROOT>,
@@ -737,7 +737,7 @@
};
sdma1: dma-controller@30bd0000 {
- compatible = "fsl,imx8mm-sdma", "fsl,imx7d-sdma";
+ compatible = "fsl,imx8mm-sdma", "fsl,imx8mq-sdma";
reg = <0x30bd0000 0x10000>;
interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clk IMX8MM_CLK_SDMA1_ROOT>,
diff --git a/arch/arm64/boot/dts/freescale/imx8mn.dtsi b/arch/arm64/boot/dts/freescale/imx8mn.dtsi
index 98496f57..43c4db3 100644
--- a/arch/arm64/boot/dts/freescale/imx8mn.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mn.dtsi
@@ -288,7 +288,7 @@
};
sdma3: dma-controller@302b0000 {
- compatible = "fsl,imx8mn-sdma", "fsl,imx7d-sdma";
+ compatible = "fsl,imx8mn-sdma", "fsl,imx8mq-sdma";
reg = <0x302b0000 0x10000>;
interrupts = <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clk IMX8MN_CLK_SDMA3_ROOT>,
@@ -299,7 +299,7 @@
};
sdma2: dma-controller@302c0000 {
- compatible = "fsl,imx8mn-sdma", "fsl,imx7d-sdma";
+ compatible = "fsl,imx8mn-sdma", "fsl,imx8mq-sdma";
reg = <0x302c0000 0x10000>;
interrupts = <GIC_SPI 103 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clk IMX8MN_CLK_SDMA2_ROOT>,
@@ -612,7 +612,7 @@
};
sdma1: dma-controller@30bd0000 {
- compatible = "fsl,imx8mn-sdma", "fsl,imx7d-sdma";
+ compatible = "fsl,imx8mn-sdma", "fsl,imx8mq-sdma";
reg = <0x30bd0000 0x10000>;
interrupts = <GIC_SPI 2 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&clk IMX8MN_CLK_SDMA1_ROOT>,
diff --git a/arch/arm64/boot/dts/freescale/imx8mq-zii-ultra.dtsi b/arch/arm64/boot/dts/freescale/imx8mq-zii-ultra.dtsi
index 087b5b6..32ce149 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq-zii-ultra.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mq-zii-ultra.dtsi
@@ -88,7 +88,7 @@
regulator-name = "0V9_ARM";
regulator-min-microvolt = <900000>;
regulator-max-microvolt = <1000000>;
- gpios = <&gpio3 19 GPIO_ACTIVE_HIGH>;
+ gpios = <&gpio3 16 GPIO_ACTIVE_HIGH>;
states = <1000000 0x1
900000 0x0>;
regulator-always-on;
diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h
index 8330810..565aa45 100644
--- a/arch/arm64/include/asm/pgtable.h
+++ b/arch/arm64/include/asm/pgtable.h
@@ -283,23 +283,6 @@ static inline void set_pte_at(struct mm_struct *mm, unsigned long addr,
set_pte(ptep, pte);
}
-#define __HAVE_ARCH_PTE_SAME
-static inline int pte_same(pte_t pte_a, pte_t pte_b)
-{
- pteval_t lhs, rhs;
-
- lhs = pte_val(pte_a);
- rhs = pte_val(pte_b);
-
- if (pte_present(pte_a))
- lhs &= ~PTE_RDONLY;
-
- if (pte_present(pte_b))
- rhs &= ~PTE_RDONLY;
-
- return (lhs == rhs);
-}
-
/*
* Huge pte definitions.
*/
diff --git a/arch/arm64/include/asm/vdso/vsyscall.h b/arch/arm64/include/asm/vdso/vsyscall.h
index 0c731bf..0c20a7c 100644
--- a/arch/arm64/include/asm/vdso/vsyscall.h
+++ b/arch/arm64/include/asm/vdso/vsyscall.h
@@ -31,13 +31,6 @@ int __arm64_get_clock_mode(struct timekeeper *tk)
#define __arch_get_clock_mode __arm64_get_clock_mode
static __always_inline
-int __arm64_use_vsyscall(struct vdso_data *vdata)
-{
- return !vdata[CS_HRES_COARSE].clock_mode;
-}
-#define __arch_use_vsyscall __arm64_use_vsyscall
-
-static __always_inline
void __arm64_update_vsyscall(struct vdso_data *vdata, struct timekeeper *tk)
{
vdata[CS_HRES_COARSE].mask = VDSO_PRECISION_MASK;
diff --git a/arch/mips/include/asm/vdso/vsyscall.h b/arch/mips/include/asm/vdso/vsyscall.h
index 1953147..00d41b9 100644
--- a/arch/mips/include/asm/vdso/vsyscall.h
+++ b/arch/mips/include/asm/vdso/vsyscall.h
@@ -28,13 +28,6 @@ int __mips_get_clock_mode(struct timekeeper *tk)
}
#define __arch_get_clock_mode __mips_get_clock_mode
-static __always_inline
-int __mips_use_vsyscall(struct vdso_data *vdata)
-{
- return (vdata[CS_HRES_COARSE].clock_mode != VDSO_CLOCK_NONE);
-}
-#define __arch_use_vsyscall __mips_use_vsyscall
-
/* The asm-generic header needs to be included after the definitions above */
#include <asm-generic/vdso/vsyscall.h>
diff --git a/arch/mips/sgi-ip27/Kconfig b/arch/mips/sgi-ip27/Kconfig
index ef3847e..e5b6cad 100644
--- a/arch/mips/sgi-ip27/Kconfig
+++ b/arch/mips/sgi-ip27/Kconfig
@@ -38,10 +38,3 @@
Say Y here to enable replicating the kernel text across multiple
nodes in a NUMA cluster. This trades memory for speed.
-config REPLICATE_EXHANDLERS
- bool "Exception handler replication support"
- depends on SGI_IP27
- help
- Say Y here to enable replicating the kernel exception handlers
- across multiple nodes in a NUMA cluster. This trades memory for
- speed.
diff --git a/arch/mips/sgi-ip27/ip27-init.c b/arch/mips/sgi-ip27/ip27-init.c
index 59d5375..79a52c4 100644
--- a/arch/mips/sgi-ip27/ip27-init.c
+++ b/arch/mips/sgi-ip27/ip27-init.c
@@ -69,23 +69,14 @@ static void per_hub_init(cnodeid_t cnode)
hub_rtc_init(cnode);
-#ifdef CONFIG_REPLICATE_EXHANDLERS
- /*
- * If this is not a headless node initialization,
- * copy over the caliased exception handlers.
- */
- if (get_compact_nodeid() == cnode) {
- extern char except_vec2_generic, except_vec3_generic;
- extern void build_tlb_refill_handler(void);
-
- memcpy((void *)(CKSEG0 + 0x100), &except_vec2_generic, 0x80);
- memcpy((void *)(CKSEG0 + 0x180), &except_vec3_generic, 0x80);
- build_tlb_refill_handler();
- memcpy((void *)(CKSEG0 + 0x100), (void *) CKSEG0, 0x80);
- memcpy((void *)(CKSEG0 + 0x180), &except_vec3_generic, 0x100);
+ if (nasid) {
+ /* copy exception handlers from first node to current node */
+ memcpy((void *)NODE_OFFSET_TO_K0(nasid, 0),
+ (void *)CKSEG0, 0x200);
__flush_cache_all();
+ /* switch to node local exception handlers */
+ REMOTE_HUB_S(nasid, PI_CALIAS_SIZE, PI_CALIAS_SIZE_8K);
}
-#endif
}
void per_cpu_init(void)
diff --git a/arch/mips/sgi-ip27/ip27-memory.c b/arch/mips/sgi-ip27/ip27-memory.c
index fb077a9..8624a88 100644
--- a/arch/mips/sgi-ip27/ip27-memory.c
+++ b/arch/mips/sgi-ip27/ip27-memory.c
@@ -332,11 +332,7 @@ static void __init mlreset(void)
* thinks it is a node 0 address.
*/
REMOTE_HUB_S(nasid, PI_REGION_PRESENT, (region_mask | 1));
-#ifdef CONFIG_REPLICATE_EXHANDLERS
- REMOTE_HUB_S(nasid, PI_CALIAS_SIZE, PI_CALIAS_SIZE_8K);
-#else
REMOTE_HUB_S(nasid, PI_CALIAS_SIZE, PI_CALIAS_SIZE_0);
-#endif
#ifdef LATER
/*
diff --git a/arch/powerpc/net/bpf_jit_comp64.c b/arch/powerpc/net/bpf_jit_comp64.c
index 02a5994..be3517e 100644
--- a/arch/powerpc/net/bpf_jit_comp64.c
+++ b/arch/powerpc/net/bpf_jit_comp64.c
@@ -1142,6 +1142,19 @@ struct bpf_prog *bpf_int_jit_compile(struct bpf_prog *fp)
}
/*
+ * If we have seen a tail call, we need a second pass.
+ * This is because bpf_jit_emit_common_epilogue() is called
+ * from bpf_jit_emit_tail_call() with a not yet stable ctx->seen.
+ */
+ if (cgctx.seen & SEEN_TAILCALL) {
+ cgctx.idx = 0;
+ if (bpf_jit_build_body(fp, 0, &cgctx, addrs, false)) {
+ fp = org_fp;
+ goto out_addrs;
+ }
+ }
+
+ /*
* Pretend to build prologue, given the features we've seen. This will
* update ctgtx.idx as it pretends to output instructions, then we can
* calculate total size from idx.
diff --git a/arch/sparc/vdso/Makefile b/arch/sparc/vdso/Makefile
index 324a239..997ffe4 100644
--- a/arch/sparc/vdso/Makefile
+++ b/arch/sparc/vdso/Makefile
@@ -65,14 +65,14 @@
#
# vDSO code runs in userspace and -pg doesn't help with profiling anyway.
#
-CFLAGS_REMOVE_vdso-note.o = -pg
CFLAGS_REMOVE_vclock_gettime.o = -pg
+CFLAGS_REMOVE_vdso32/vclock_gettime.o = -pg
$(obj)/%.so: OBJCOPYFLAGS := -S
$(obj)/%.so: $(obj)/%.so.dbg FORCE
$(call if_changed,objcopy)
-CPPFLAGS_vdso32.lds = $(CPPFLAGS_vdso.lds)
+CPPFLAGS_vdso32/vdso32.lds = $(CPPFLAGS_vdso.lds)
VDSO_LDFLAGS_vdso32.lds = -m elf32_sparc -soname linux-gate.so.1
#This makes sure the $(obj) subdirectory exists even though vdso32/
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index d6e1faa..8ef8513 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -1940,6 +1940,51 @@
If unsure, say y.
+choice
+ prompt "TSX enable mode"
+ depends on CPU_SUP_INTEL
+ default X86_INTEL_TSX_MODE_OFF
+ help
+ Intel's TSX (Transactional Synchronization Extensions) feature
+ allows to optimize locking protocols through lock elision which
+ can lead to a noticeable performance boost.
+
+ On the other hand it has been shown that TSX can be exploited
+ to form side channel attacks (e.g. TAA) and chances are there
+ will be more of those attacks discovered in the future.
+
+ Therefore TSX is not enabled by default (aka tsx=off). An admin
+ might override this decision by tsx=on the command line parameter.
+ Even with TSX enabled, the kernel will attempt to enable the best
+ possible TAA mitigation setting depending on the microcode available
+ for the particular machine.
+
+ This option allows to set the default tsx mode between tsx=on, =off
+ and =auto. See Documentation/admin-guide/kernel-parameters.txt for more
+ details.
+
+ Say off if not sure, auto if TSX is in use but it should be used on safe
+ platforms or on if TSX is in use and the security aspect of tsx is not
+ relevant.
+
+config X86_INTEL_TSX_MODE_OFF
+ bool "off"
+ help
+ TSX is disabled if possible - equals to tsx=off command line parameter.
+
+config X86_INTEL_TSX_MODE_ON
+ bool "on"
+ help
+ TSX is always enabled on TSX capable HW - equals the tsx=on command
+ line parameter.
+
+config X86_INTEL_TSX_MODE_AUTO
+ bool "auto"
+ help
+ TSX is enabled on TSX capable HW that is believed to be safe against
+ side channel attacks- equals the tsx=auto command line parameter.
+endchoice
+
config EFI
bool "EFI runtime service support"
depends on ACPI
diff --git a/arch/x86/include/asm/cpufeatures.h b/arch/x86/include/asm/cpufeatures.h
index 0652d3e..c4fbe37 100644
--- a/arch/x86/include/asm/cpufeatures.h
+++ b/arch/x86/include/asm/cpufeatures.h
@@ -399,5 +399,7 @@
#define X86_BUG_MDS X86_BUG(19) /* CPU is affected by Microarchitectural data sampling */
#define X86_BUG_MSBDS_ONLY X86_BUG(20) /* CPU is only affected by the MSDBS variant of BUG_MDS */
#define X86_BUG_SWAPGS X86_BUG(21) /* CPU is affected by speculation through SWAPGS */
+#define X86_BUG_TAA X86_BUG(22) /* CPU is affected by TSX Async Abort(TAA) */
+#define X86_BUG_ITLB_MULTIHIT X86_BUG(23) /* CPU may incur MCE during certain page attribute changes */
#endif /* _ASM_X86_CPUFEATURES_H */
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 24d6598..4fc6148 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -312,9 +312,12 @@ struct kvm_rmap_head {
struct kvm_mmu_page {
struct list_head link;
struct hlist_node hash_link;
+ struct list_head lpage_disallowed_link;
+
bool unsync;
u8 mmu_valid_gen;
bool mmio_cached;
+ bool lpage_disallowed; /* Can't be replaced by an equiv large page */
/*
* The following two entries are used to key the shadow page in the
@@ -859,6 +862,7 @@ struct kvm_arch {
*/
struct list_head active_mmu_pages;
struct list_head zapped_obsolete_pages;
+ struct list_head lpage_disallowed_mmu_pages;
struct kvm_page_track_notifier_node mmu_sp_tracker;
struct kvm_page_track_notifier_head track_notifier_head;
@@ -933,6 +937,7 @@ struct kvm_arch {
bool exception_payload_enabled;
struct kvm_pmu_event_filter *pmu_event_filter;
+ struct task_struct *nx_lpage_recovery_thread;
};
struct kvm_vm_stat {
@@ -946,6 +951,7 @@ struct kvm_vm_stat {
ulong mmu_unsync;
ulong remote_tlb_flush;
ulong lpages;
+ ulong nx_lpage_splits;
ulong max_mmu_page_hash_collisions;
};
diff --git a/arch/x86/include/asm/msr-index.h b/arch/x86/include/asm/msr-index.h
index 20ce682..6a31246 100644
--- a/arch/x86/include/asm/msr-index.h
+++ b/arch/x86/include/asm/msr-index.h
@@ -93,6 +93,18 @@
* Microarchitectural Data
* Sampling (MDS) vulnerabilities.
*/
+#define ARCH_CAP_PSCHANGE_MC_NO BIT(6) /*
+ * The processor is not susceptible to a
+ * machine check error due to modifying the
+ * code page size along with either the
+ * physical address or cache type
+ * without TLB invalidation.
+ */
+#define ARCH_CAP_TSX_CTRL_MSR BIT(7) /* MSR for TSX control is available. */
+#define ARCH_CAP_TAA_NO BIT(8) /*
+ * Not susceptible to
+ * TSX Async Abort (TAA) vulnerabilities.
+ */
#define MSR_IA32_FLUSH_CMD 0x0000010b
#define L1D_FLUSH BIT(0) /*
@@ -103,6 +115,10 @@
#define MSR_IA32_BBL_CR_CTL 0x00000119
#define MSR_IA32_BBL_CR_CTL3 0x0000011e
+#define MSR_IA32_TSX_CTRL 0x00000122
+#define TSX_CTRL_RTM_DISABLE BIT(0) /* Disable RTM feature */
+#define TSX_CTRL_CPUID_CLEAR BIT(1) /* Disable TSX enumeration */
+
#define MSR_IA32_SYSENTER_CS 0x00000174
#define MSR_IA32_SYSENTER_ESP 0x00000175
#define MSR_IA32_SYSENTER_EIP 0x00000176
diff --git a/arch/x86/include/asm/nospec-branch.h b/arch/x86/include/asm/nospec-branch.h
index 80bc209..5c24a7b 100644
--- a/arch/x86/include/asm/nospec-branch.h
+++ b/arch/x86/include/asm/nospec-branch.h
@@ -314,7 +314,7 @@ DECLARE_STATIC_KEY_FALSE(mds_idle_clear);
#include <asm/segment.h>
/**
- * mds_clear_cpu_buffers - Mitigation for MDS vulnerability
+ * mds_clear_cpu_buffers - Mitigation for MDS and TAA vulnerability
*
* This uses the otherwise unused and obsolete VERW instruction in
* combination with microcode which triggers a CPU buffer flush when the
@@ -337,7 +337,7 @@ static inline void mds_clear_cpu_buffers(void)
}
/**
- * mds_user_clear_cpu_buffers - Mitigation for MDS vulnerability
+ * mds_user_clear_cpu_buffers - Mitigation for MDS and TAA vulnerability
*
* Clear CPU buffers if the corresponding static key is enabled
*/
diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h
index 6e0a3b4..54f5d54 100644
--- a/arch/x86/include/asm/processor.h
+++ b/arch/x86/include/asm/processor.h
@@ -988,4 +988,11 @@ enum mds_mitigations {
MDS_MITIGATION_VMWERV,
};
+enum taa_mitigations {
+ TAA_MITIGATION_OFF,
+ TAA_MITIGATION_UCODE_NEEDED,
+ TAA_MITIGATION_VERW,
+ TAA_MITIGATION_TSX_DISABLED,
+};
+
#endif /* _ASM_X86_PROCESSOR_H */
diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c
index 9e2dd2b..2b0faf8 100644
--- a/arch/x86/kernel/apic/apic.c
+++ b/arch/x86/kernel/apic/apic.c
@@ -1586,9 +1586,6 @@ static void setup_local_APIC(void)
{
int cpu = smp_processor_id();
unsigned int value;
-#ifdef CONFIG_X86_32
- int logical_apicid, ldr_apicid;
-#endif
if (disable_apic) {
disable_ioapic_support();
@@ -1626,16 +1623,21 @@ static void setup_local_APIC(void)
apic->init_apic_ldr();
#ifdef CONFIG_X86_32
- /*
- * APIC LDR is initialized. If logical_apicid mapping was
- * initialized during get_smp_config(), make sure it matches the
- * actual value.
- */
- logical_apicid = early_per_cpu(x86_cpu_to_logical_apicid, cpu);
- ldr_apicid = GET_APIC_LOGICAL_ID(apic_read(APIC_LDR));
- WARN_ON(logical_apicid != BAD_APICID && logical_apicid != ldr_apicid);
- /* always use the value from LDR */
- early_per_cpu(x86_cpu_to_logical_apicid, cpu) = ldr_apicid;
+ if (apic->dest_logical) {
+ int logical_apicid, ldr_apicid;
+
+ /*
+ * APIC LDR is initialized. If logical_apicid mapping was
+ * initialized during get_smp_config(), make sure it matches
+ * the actual value.
+ */
+ logical_apicid = early_per_cpu(x86_cpu_to_logical_apicid, cpu);
+ ldr_apicid = GET_APIC_LOGICAL_ID(apic_read(APIC_LDR));
+ if (logical_apicid != BAD_APICID)
+ WARN_ON(logical_apicid != ldr_apicid);
+ /* Always use the value from LDR. */
+ early_per_cpu(x86_cpu_to_logical_apicid, cpu) = ldr_apicid;
+ }
#endif
/*
diff --git a/arch/x86/kernel/cpu/Makefile b/arch/x86/kernel/cpu/Makefile
index d7a1e5a..890f600 100644
--- a/arch/x86/kernel/cpu/Makefile
+++ b/arch/x86/kernel/cpu/Makefile
@@ -30,7 +30,7 @@
obj-$(CONFIG_X86_FEATURE_NAMES) += capflags.o powerflags.o
ifdef CONFIG_CPU_SUP_INTEL
-obj-y += intel.o intel_pconfig.o
+obj-y += intel.o intel_pconfig.o tsx.o
obj-$(CONFIG_PM) += intel_epb.o
endif
obj-$(CONFIG_CPU_SUP_AMD) += amd.o
diff --git a/arch/x86/kernel/cpu/bugs.c b/arch/x86/kernel/cpu/bugs.c
index 91c2561..4c7b0fa 100644
--- a/arch/x86/kernel/cpu/bugs.c
+++ b/arch/x86/kernel/cpu/bugs.c
@@ -39,6 +39,7 @@ static void __init spectre_v2_select_mitigation(void);
static void __init ssb_select_mitigation(void);
static void __init l1tf_select_mitigation(void);
static void __init mds_select_mitigation(void);
+static void __init taa_select_mitigation(void);
/* The base value of the SPEC_CTRL MSR that always has to be preserved. */
u64 x86_spec_ctrl_base;
@@ -105,6 +106,7 @@ void __init check_bugs(void)
ssb_select_mitigation();
l1tf_select_mitigation();
mds_select_mitigation();
+ taa_select_mitigation();
arch_smt_update();
@@ -269,6 +271,100 @@ static int __init mds_cmdline(char *str)
early_param("mds", mds_cmdline);
#undef pr_fmt
+#define pr_fmt(fmt) "TAA: " fmt
+
+/* Default mitigation for TAA-affected CPUs */
+static enum taa_mitigations taa_mitigation __ro_after_init = TAA_MITIGATION_VERW;
+static bool taa_nosmt __ro_after_init;
+
+static const char * const taa_strings[] = {
+ [TAA_MITIGATION_OFF] = "Vulnerable",
+ [TAA_MITIGATION_UCODE_NEEDED] = "Vulnerable: Clear CPU buffers attempted, no microcode",
+ [TAA_MITIGATION_VERW] = "Mitigation: Clear CPU buffers",
+ [TAA_MITIGATION_TSX_DISABLED] = "Mitigation: TSX disabled",
+};
+
+static void __init taa_select_mitigation(void)
+{
+ u64 ia32_cap;
+
+ if (!boot_cpu_has_bug(X86_BUG_TAA)) {
+ taa_mitigation = TAA_MITIGATION_OFF;
+ return;
+ }
+
+ /* TSX previously disabled by tsx=off */
+ if (!boot_cpu_has(X86_FEATURE_RTM)) {
+ taa_mitigation = TAA_MITIGATION_TSX_DISABLED;
+ goto out;
+ }
+
+ if (cpu_mitigations_off()) {
+ taa_mitigation = TAA_MITIGATION_OFF;
+ return;
+ }
+
+ /* TAA mitigation is turned off on the cmdline (tsx_async_abort=off) */
+ if (taa_mitigation == TAA_MITIGATION_OFF)
+ goto out;
+
+ if (boot_cpu_has(X86_FEATURE_MD_CLEAR))
+ taa_mitigation = TAA_MITIGATION_VERW;
+ else
+ taa_mitigation = TAA_MITIGATION_UCODE_NEEDED;
+
+ /*
+ * VERW doesn't clear the CPU buffers when MD_CLEAR=1 and MDS_NO=1.
+ * A microcode update fixes this behavior to clear CPU buffers. It also
+ * adds support for MSR_IA32_TSX_CTRL which is enumerated by the
+ * ARCH_CAP_TSX_CTRL_MSR bit.
+ *
+ * On MDS_NO=1 CPUs if ARCH_CAP_TSX_CTRL_MSR is not set, microcode
+ * update is required.
+ */
+ ia32_cap = x86_read_arch_cap_msr();
+ if ( (ia32_cap & ARCH_CAP_MDS_NO) &&
+ !(ia32_cap & ARCH_CAP_TSX_CTRL_MSR))
+ taa_mitigation = TAA_MITIGATION_UCODE_NEEDED;
+
+ /*
+ * TSX is enabled, select alternate mitigation for TAA which is
+ * the same as MDS. Enable MDS static branch to clear CPU buffers.
+ *
+ * For guests that can't determine whether the correct microcode is
+ * present on host, enable the mitigation for UCODE_NEEDED as well.
+ */
+ static_branch_enable(&mds_user_clear);
+
+ if (taa_nosmt || cpu_mitigations_auto_nosmt())
+ cpu_smt_disable(false);
+
+out:
+ pr_info("%s\n", taa_strings[taa_mitigation]);
+}
+
+static int __init tsx_async_abort_parse_cmdline(char *str)
+{
+ if (!boot_cpu_has_bug(X86_BUG_TAA))
+ return 0;
+
+ if (!str)
+ return -EINVAL;
+
+ if (!strcmp(str, "off")) {
+ taa_mitigation = TAA_MITIGATION_OFF;
+ } else if (!strcmp(str, "full")) {
+ taa_mitigation = TAA_MITIGATION_VERW;
+ } else if (!strcmp(str, "full,nosmt")) {
+ taa_mitigation = TAA_MITIGATION_VERW;
+ taa_nosmt = true;
+ }
+
+ return 0;
+}
+early_param("tsx_async_abort", tsx_async_abort_parse_cmdline);
+
+#undef pr_fmt
#define pr_fmt(fmt) "Spectre V1 : " fmt
enum spectre_v1_mitigation {
@@ -786,13 +882,10 @@ static void update_mds_branch_idle(void)
}
#define MDS_MSG_SMT "MDS CPU bug present and SMT on, data leak possible. See https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/mds.html for more details.\n"
+#define TAA_MSG_SMT "TAA CPU bug present and SMT on, data leak possible. See https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/tsx_async_abort.html for more details.\n"
void cpu_bugs_smt_update(void)
{
- /* Enhanced IBRS implies STIBP. No update required. */
- if (spectre_v2_enabled == SPECTRE_V2_IBRS_ENHANCED)
- return;
-
mutex_lock(&spec_ctrl_mutex);
switch (spectre_v2_user) {
@@ -819,6 +912,17 @@ void cpu_bugs_smt_update(void)
break;
}
+ switch (taa_mitigation) {
+ case TAA_MITIGATION_VERW:
+ case TAA_MITIGATION_UCODE_NEEDED:
+ if (sched_smt_active())
+ pr_warn_once(TAA_MSG_SMT);
+ break;
+ case TAA_MITIGATION_TSX_DISABLED:
+ case TAA_MITIGATION_OFF:
+ break;
+ }
+
mutex_unlock(&spec_ctrl_mutex);
}
@@ -1149,6 +1253,9 @@ void x86_spec_ctrl_setup_ap(void)
x86_amd_ssb_disable();
}
+bool itlb_multihit_kvm_mitigation;
+EXPORT_SYMBOL_GPL(itlb_multihit_kvm_mitigation);
+
#undef pr_fmt
#define pr_fmt(fmt) "L1TF: " fmt
@@ -1304,11 +1411,24 @@ static ssize_t l1tf_show_state(char *buf)
l1tf_vmx_states[l1tf_vmx_mitigation],
sched_smt_active() ? "vulnerable" : "disabled");
}
+
+static ssize_t itlb_multihit_show_state(char *buf)
+{
+ if (itlb_multihit_kvm_mitigation)
+ return sprintf(buf, "KVM: Mitigation: Split huge pages\n");
+ else
+ return sprintf(buf, "KVM: Vulnerable\n");
+}
#else
static ssize_t l1tf_show_state(char *buf)
{
return sprintf(buf, "%s\n", L1TF_DEFAULT_MSG);
}
+
+static ssize_t itlb_multihit_show_state(char *buf)
+{
+ return sprintf(buf, "Processor vulnerable\n");
+}
#endif
static ssize_t mds_show_state(char *buf)
@@ -1328,6 +1448,21 @@ static ssize_t mds_show_state(char *buf)
sched_smt_active() ? "vulnerable" : "disabled");
}
+static ssize_t tsx_async_abort_show_state(char *buf)
+{
+ if ((taa_mitigation == TAA_MITIGATION_TSX_DISABLED) ||
+ (taa_mitigation == TAA_MITIGATION_OFF))
+ return sprintf(buf, "%s\n", taa_strings[taa_mitigation]);
+
+ if (boot_cpu_has(X86_FEATURE_HYPERVISOR)) {
+ return sprintf(buf, "%s; SMT Host state unknown\n",
+ taa_strings[taa_mitigation]);
+ }
+
+ return sprintf(buf, "%s; SMT %s\n", taa_strings[taa_mitigation],
+ sched_smt_active() ? "vulnerable" : "disabled");
+}
+
static char *stibp_state(void)
{
if (spectre_v2_enabled == SPECTRE_V2_IBRS_ENHANCED)
@@ -1398,6 +1533,12 @@ static ssize_t cpu_show_common(struct device *dev, struct device_attribute *attr
case X86_BUG_MDS:
return mds_show_state(buf);
+ case X86_BUG_TAA:
+ return tsx_async_abort_show_state(buf);
+
+ case X86_BUG_ITLB_MULTIHIT:
+ return itlb_multihit_show_state(buf);
+
default:
break;
}
@@ -1434,4 +1575,14 @@ ssize_t cpu_show_mds(struct device *dev, struct device_attribute *attr, char *bu
{
return cpu_show_common(dev, attr, buf, X86_BUG_MDS);
}
+
+ssize_t cpu_show_tsx_async_abort(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ return cpu_show_common(dev, attr, buf, X86_BUG_TAA);
+}
+
+ssize_t cpu_show_itlb_multihit(struct device *dev, struct device_attribute *attr, char *buf)
+{
+ return cpu_show_common(dev, attr, buf, X86_BUG_ITLB_MULTIHIT);
+}
#endif
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index 9ae7d1b..fffe219 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -1016,13 +1016,14 @@ static void identify_cpu_without_cpuid(struct cpuinfo_x86 *c)
#endif
}
-#define NO_SPECULATION BIT(0)
-#define NO_MELTDOWN BIT(1)
-#define NO_SSB BIT(2)
-#define NO_L1TF BIT(3)
-#define NO_MDS BIT(4)
-#define MSBDS_ONLY BIT(5)
-#define NO_SWAPGS BIT(6)
+#define NO_SPECULATION BIT(0)
+#define NO_MELTDOWN BIT(1)
+#define NO_SSB BIT(2)
+#define NO_L1TF BIT(3)
+#define NO_MDS BIT(4)
+#define MSBDS_ONLY BIT(5)
+#define NO_SWAPGS BIT(6)
+#define NO_ITLB_MULTIHIT BIT(7)
#define VULNWL(_vendor, _family, _model, _whitelist) \
{ X86_VENDOR_##_vendor, _family, _model, X86_FEATURE_ANY, _whitelist }
@@ -1043,27 +1044,27 @@ static const __initconst struct x86_cpu_id cpu_vuln_whitelist[] = {
VULNWL(NSC, 5, X86_MODEL_ANY, NO_SPECULATION),
/* Intel Family 6 */
- VULNWL_INTEL(ATOM_SALTWELL, NO_SPECULATION),
- VULNWL_INTEL(ATOM_SALTWELL_TABLET, NO_SPECULATION),
- VULNWL_INTEL(ATOM_SALTWELL_MID, NO_SPECULATION),
- VULNWL_INTEL(ATOM_BONNELL, NO_SPECULATION),
- VULNWL_INTEL(ATOM_BONNELL_MID, NO_SPECULATION),
+ VULNWL_INTEL(ATOM_SALTWELL, NO_SPECULATION | NO_ITLB_MULTIHIT),
+ VULNWL_INTEL(ATOM_SALTWELL_TABLET, NO_SPECULATION | NO_ITLB_MULTIHIT),
+ VULNWL_INTEL(ATOM_SALTWELL_MID, NO_SPECULATION | NO_ITLB_MULTIHIT),
+ VULNWL_INTEL(ATOM_BONNELL, NO_SPECULATION | NO_ITLB_MULTIHIT),
+ VULNWL_INTEL(ATOM_BONNELL_MID, NO_SPECULATION | NO_ITLB_MULTIHIT),
- VULNWL_INTEL(ATOM_SILVERMONT, NO_SSB | NO_L1TF | MSBDS_ONLY | NO_SWAPGS),
- VULNWL_INTEL(ATOM_SILVERMONT_D, NO_SSB | NO_L1TF | MSBDS_ONLY | NO_SWAPGS),
- VULNWL_INTEL(ATOM_SILVERMONT_MID, NO_SSB | NO_L1TF | MSBDS_ONLY | NO_SWAPGS),
- VULNWL_INTEL(ATOM_AIRMONT, NO_SSB | NO_L1TF | MSBDS_ONLY | NO_SWAPGS),
- VULNWL_INTEL(XEON_PHI_KNL, NO_SSB | NO_L1TF | MSBDS_ONLY | NO_SWAPGS),
- VULNWL_INTEL(XEON_PHI_KNM, NO_SSB | NO_L1TF | MSBDS_ONLY | NO_SWAPGS),
+ VULNWL_INTEL(ATOM_SILVERMONT, NO_SSB | NO_L1TF | MSBDS_ONLY | NO_SWAPGS | NO_ITLB_MULTIHIT),
+ VULNWL_INTEL(ATOM_SILVERMONT_D, NO_SSB | NO_L1TF | MSBDS_ONLY | NO_SWAPGS | NO_ITLB_MULTIHIT),
+ VULNWL_INTEL(ATOM_SILVERMONT_MID, NO_SSB | NO_L1TF | MSBDS_ONLY | NO_SWAPGS | NO_ITLB_MULTIHIT),
+ VULNWL_INTEL(ATOM_AIRMONT, NO_SSB | NO_L1TF | MSBDS_ONLY | NO_SWAPGS | NO_ITLB_MULTIHIT),
+ VULNWL_INTEL(XEON_PHI_KNL, NO_SSB | NO_L1TF | MSBDS_ONLY | NO_SWAPGS | NO_ITLB_MULTIHIT),
+ VULNWL_INTEL(XEON_PHI_KNM, NO_SSB | NO_L1TF | MSBDS_ONLY | NO_SWAPGS | NO_ITLB_MULTIHIT),
VULNWL_INTEL(CORE_YONAH, NO_SSB),
- VULNWL_INTEL(ATOM_AIRMONT_MID, NO_L1TF | MSBDS_ONLY | NO_SWAPGS),
- VULNWL_INTEL(ATOM_AIRMONT_NP, NO_L1TF | NO_SWAPGS),
+ VULNWL_INTEL(ATOM_AIRMONT_MID, NO_L1TF | MSBDS_ONLY | NO_SWAPGS | NO_ITLB_MULTIHIT),
+ VULNWL_INTEL(ATOM_AIRMONT_NP, NO_L1TF | NO_SWAPGS | NO_ITLB_MULTIHIT),
- VULNWL_INTEL(ATOM_GOLDMONT, NO_MDS | NO_L1TF | NO_SWAPGS),
- VULNWL_INTEL(ATOM_GOLDMONT_D, NO_MDS | NO_L1TF | NO_SWAPGS),
- VULNWL_INTEL(ATOM_GOLDMONT_PLUS, NO_MDS | NO_L1TF | NO_SWAPGS),
+ VULNWL_INTEL(ATOM_GOLDMONT, NO_MDS | NO_L1TF | NO_SWAPGS | NO_ITLB_MULTIHIT),
+ VULNWL_INTEL(ATOM_GOLDMONT_D, NO_MDS | NO_L1TF | NO_SWAPGS | NO_ITLB_MULTIHIT),
+ VULNWL_INTEL(ATOM_GOLDMONT_PLUS, NO_MDS | NO_L1TF | NO_SWAPGS | NO_ITLB_MULTIHIT),
/*
* Technically, swapgs isn't serializing on AMD (despite it previously
@@ -1073,15 +1074,17 @@ static const __initconst struct x86_cpu_id cpu_vuln_whitelist[] = {
* good enough for our purposes.
*/
+ VULNWL_INTEL(ATOM_TREMONT_D, NO_ITLB_MULTIHIT),
+
/* AMD Family 0xf - 0x12 */
- VULNWL_AMD(0x0f, NO_MELTDOWN | NO_SSB | NO_L1TF | NO_MDS | NO_SWAPGS),
- VULNWL_AMD(0x10, NO_MELTDOWN | NO_SSB | NO_L1TF | NO_MDS | NO_SWAPGS),
- VULNWL_AMD(0x11, NO_MELTDOWN | NO_SSB | NO_L1TF | NO_MDS | NO_SWAPGS),
- VULNWL_AMD(0x12, NO_MELTDOWN | NO_SSB | NO_L1TF | NO_MDS | NO_SWAPGS),
+ VULNWL_AMD(0x0f, NO_MELTDOWN | NO_SSB | NO_L1TF | NO_MDS | NO_SWAPGS | NO_ITLB_MULTIHIT),
+ VULNWL_AMD(0x10, NO_MELTDOWN | NO_SSB | NO_L1TF | NO_MDS | NO_SWAPGS | NO_ITLB_MULTIHIT),
+ VULNWL_AMD(0x11, NO_MELTDOWN | NO_SSB | NO_L1TF | NO_MDS | NO_SWAPGS | NO_ITLB_MULTIHIT),
+ VULNWL_AMD(0x12, NO_MELTDOWN | NO_SSB | NO_L1TF | NO_MDS | NO_SWAPGS | NO_ITLB_MULTIHIT),
/* FAMILY_ANY must be last, otherwise 0x0f - 0x12 matches won't work */
- VULNWL_AMD(X86_FAMILY_ANY, NO_MELTDOWN | NO_L1TF | NO_MDS | NO_SWAPGS),
- VULNWL_HYGON(X86_FAMILY_ANY, NO_MELTDOWN | NO_L1TF | NO_MDS | NO_SWAPGS),
+ VULNWL_AMD(X86_FAMILY_ANY, NO_MELTDOWN | NO_L1TF | NO_MDS | NO_SWAPGS | NO_ITLB_MULTIHIT),
+ VULNWL_HYGON(X86_FAMILY_ANY, NO_MELTDOWN | NO_L1TF | NO_MDS | NO_SWAPGS | NO_ITLB_MULTIHIT),
{}
};
@@ -1092,19 +1095,30 @@ static bool __init cpu_matches(unsigned long which)
return m && !!(m->driver_data & which);
}
-static void __init cpu_set_bug_bits(struct cpuinfo_x86 *c)
+u64 x86_read_arch_cap_msr(void)
{
u64 ia32_cap = 0;
+ if (boot_cpu_has(X86_FEATURE_ARCH_CAPABILITIES))
+ rdmsrl(MSR_IA32_ARCH_CAPABILITIES, ia32_cap);
+
+ return ia32_cap;
+}
+
+static void __init cpu_set_bug_bits(struct cpuinfo_x86 *c)
+{
+ u64 ia32_cap = x86_read_arch_cap_msr();
+
+ /* Set ITLB_MULTIHIT bug if cpu is not in the whitelist and not mitigated */
+ if (!cpu_matches(NO_ITLB_MULTIHIT) && !(ia32_cap & ARCH_CAP_PSCHANGE_MC_NO))
+ setup_force_cpu_bug(X86_BUG_ITLB_MULTIHIT);
+
if (cpu_matches(NO_SPECULATION))
return;
setup_force_cpu_bug(X86_BUG_SPECTRE_V1);
setup_force_cpu_bug(X86_BUG_SPECTRE_V2);
- if (cpu_has(c, X86_FEATURE_ARCH_CAPABILITIES))
- rdmsrl(MSR_IA32_ARCH_CAPABILITIES, ia32_cap);
-
if (!cpu_matches(NO_SSB) && !(ia32_cap & ARCH_CAP_SSB_NO) &&
!cpu_has(c, X86_FEATURE_AMD_SSB_NO))
setup_force_cpu_bug(X86_BUG_SPEC_STORE_BYPASS);
@@ -1121,6 +1135,21 @@ static void __init cpu_set_bug_bits(struct cpuinfo_x86 *c)
if (!cpu_matches(NO_SWAPGS))
setup_force_cpu_bug(X86_BUG_SWAPGS);
+ /*
+ * When the CPU is not mitigated for TAA (TAA_NO=0) set TAA bug when:
+ * - TSX is supported or
+ * - TSX_CTRL is present
+ *
+ * TSX_CTRL check is needed for cases when TSX could be disabled before
+ * the kernel boot e.g. kexec.
+ * TSX_CTRL check alone is not sufficient for cases when the microcode
+ * update is not present or running as guest that don't get TSX_CTRL.
+ */
+ if (!(ia32_cap & ARCH_CAP_TAA_NO) &&
+ (cpu_has(c, X86_FEATURE_RTM) ||
+ (ia32_cap & ARCH_CAP_TSX_CTRL_MSR)))
+ setup_force_cpu_bug(X86_BUG_TAA);
+
if (cpu_matches(NO_MELTDOWN))
return;
@@ -1554,6 +1583,8 @@ void __init identify_boot_cpu(void)
#endif
cpu_detect_tlb(&boot_cpu_data);
setup_cr_pinning();
+
+ tsx_init();
}
void identify_secondary_cpu(struct cpuinfo_x86 *c)
diff --git a/arch/x86/kernel/cpu/cpu.h b/arch/x86/kernel/cpu/cpu.h
index c0e2407..38ab6e11 100644
--- a/arch/x86/kernel/cpu/cpu.h
+++ b/arch/x86/kernel/cpu/cpu.h
@@ -44,6 +44,22 @@ struct _tlb_table {
extern const struct cpu_dev *const __x86_cpu_dev_start[],
*const __x86_cpu_dev_end[];
+#ifdef CONFIG_CPU_SUP_INTEL
+enum tsx_ctrl_states {
+ TSX_CTRL_ENABLE,
+ TSX_CTRL_DISABLE,
+ TSX_CTRL_NOT_SUPPORTED,
+};
+
+extern __ro_after_init enum tsx_ctrl_states tsx_ctrl_state;
+
+extern void __init tsx_init(void);
+extern void tsx_enable(void);
+extern void tsx_disable(void);
+#else
+static inline void tsx_init(void) { }
+#endif /* CONFIG_CPU_SUP_INTEL */
+
extern void get_cpu_cap(struct cpuinfo_x86 *c);
extern void get_cpu_address_sizes(struct cpuinfo_x86 *c);
extern void cpu_detect_cache_sizes(struct cpuinfo_x86 *c);
@@ -62,4 +78,6 @@ unsigned int aperfmperf_get_khz(int cpu);
extern void x86_spec_ctrl_setup_ap(void);
+extern u64 x86_read_arch_cap_msr(void);
+
#endif /* ARCH_X86_CPU_H */
diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c
index c2fdc00..11d5c59 100644
--- a/arch/x86/kernel/cpu/intel.c
+++ b/arch/x86/kernel/cpu/intel.c
@@ -762,6 +762,11 @@ static void init_intel(struct cpuinfo_x86 *c)
detect_tme(c);
init_intel_misc_features(c);
+
+ if (tsx_ctrl_state == TSX_CTRL_ENABLE)
+ tsx_enable();
+ if (tsx_ctrl_state == TSX_CTRL_DISABLE)
+ tsx_disable();
}
#ifdef CONFIG_X86_32
diff --git a/arch/x86/kernel/cpu/resctrl/ctrlmondata.c b/arch/x86/kernel/cpu/resctrl/ctrlmondata.c
index efbd54c..055c861 100644
--- a/arch/x86/kernel/cpu/resctrl/ctrlmondata.c
+++ b/arch/x86/kernel/cpu/resctrl/ctrlmondata.c
@@ -522,6 +522,10 @@ int rdtgroup_mondata_show(struct seq_file *m, void *arg)
int ret = 0;
rdtgrp = rdtgroup_kn_lock_live(of->kn);
+ if (!rdtgrp) {
+ ret = -ENOENT;
+ goto out;
+ }
md.priv = of->kn->priv;
resid = md.u.rid;
diff --git a/arch/x86/kernel/cpu/resctrl/rdtgroup.c b/arch/x86/kernel/cpu/resctrl/rdtgroup.c
index a46dee8..2e3b06d 100644
--- a/arch/x86/kernel/cpu/resctrl/rdtgroup.c
+++ b/arch/x86/kernel/cpu/resctrl/rdtgroup.c
@@ -461,10 +461,8 @@ static ssize_t rdtgroup_cpus_write(struct kernfs_open_file *of,
}
rdtgrp = rdtgroup_kn_lock_live(of->kn);
- rdt_last_cmd_clear();
if (!rdtgrp) {
ret = -ENOENT;
- rdt_last_cmd_puts("Directory was removed\n");
goto unlock;
}
@@ -2648,10 +2646,8 @@ static int mkdir_rdt_prepare(struct kernfs_node *parent_kn,
int ret;
prdtgrp = rdtgroup_kn_lock_live(prgrp_kn);
- rdt_last_cmd_clear();
if (!prdtgrp) {
ret = -ENODEV;
- rdt_last_cmd_puts("Directory was removed\n");
goto out_unlock;
}
diff --git a/arch/x86/kernel/cpu/tsx.c b/arch/x86/kernel/cpu/tsx.c
new file mode 100644
index 0000000..3e20d32
--- /dev/null
+++ b/arch/x86/kernel/cpu/tsx.c
@@ -0,0 +1,140 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Intel Transactional Synchronization Extensions (TSX) control.
+ *
+ * Copyright (C) 2019 Intel Corporation
+ *
+ * Author:
+ * Pawan Gupta <pawan.kumar.gupta@linux.intel.com>
+ */
+
+#include <linux/cpufeature.h>
+
+#include <asm/cmdline.h>
+
+#include "cpu.h"
+
+enum tsx_ctrl_states tsx_ctrl_state __ro_after_init = TSX_CTRL_NOT_SUPPORTED;
+
+void tsx_disable(void)
+{
+ u64 tsx;
+
+ rdmsrl(MSR_IA32_TSX_CTRL, tsx);
+
+ /* Force all transactions to immediately abort */
+ tsx |= TSX_CTRL_RTM_DISABLE;
+
+ /*
+ * Ensure TSX support is not enumerated in CPUID.
+ * This is visible to userspace and will ensure they
+ * do not waste resources trying TSX transactions that
+ * will always abort.
+ */
+ tsx |= TSX_CTRL_CPUID_CLEAR;
+
+ wrmsrl(MSR_IA32_TSX_CTRL, tsx);
+}
+
+void tsx_enable(void)
+{
+ u64 tsx;
+
+ rdmsrl(MSR_IA32_TSX_CTRL, tsx);
+
+ /* Enable the RTM feature in the cpu */
+ tsx &= ~TSX_CTRL_RTM_DISABLE;
+
+ /*
+ * Ensure TSX support is enumerated in CPUID.
+ * This is visible to userspace and will ensure they
+ * can enumerate and use the TSX feature.
+ */
+ tsx &= ~TSX_CTRL_CPUID_CLEAR;
+
+ wrmsrl(MSR_IA32_TSX_CTRL, tsx);
+}
+
+static bool __init tsx_ctrl_is_supported(void)
+{
+ u64 ia32_cap = x86_read_arch_cap_msr();
+
+ /*
+ * TSX is controlled via MSR_IA32_TSX_CTRL. However, support for this
+ * MSR is enumerated by ARCH_CAP_TSX_MSR bit in MSR_IA32_ARCH_CAPABILITIES.
+ *
+ * TSX control (aka MSR_IA32_TSX_CTRL) is only available after a
+ * microcode update on CPUs that have their MSR_IA32_ARCH_CAPABILITIES
+ * bit MDS_NO=1. CPUs with MDS_NO=0 are not planned to get
+ * MSR_IA32_TSX_CTRL support even after a microcode update. Thus,
+ * tsx= cmdline requests will do nothing on CPUs without
+ * MSR_IA32_TSX_CTRL support.
+ */
+ return !!(ia32_cap & ARCH_CAP_TSX_CTRL_MSR);
+}
+
+static enum tsx_ctrl_states x86_get_tsx_auto_mode(void)
+{
+ if (boot_cpu_has_bug(X86_BUG_TAA))
+ return TSX_CTRL_DISABLE;
+
+ return TSX_CTRL_ENABLE;
+}
+
+void __init tsx_init(void)
+{
+ char arg[5] = {};
+ int ret;
+
+ if (!tsx_ctrl_is_supported())
+ return;
+
+ ret = cmdline_find_option(boot_command_line, "tsx", arg, sizeof(arg));
+ if (ret >= 0) {
+ if (!strcmp(arg, "on")) {
+ tsx_ctrl_state = TSX_CTRL_ENABLE;
+ } else if (!strcmp(arg, "off")) {
+ tsx_ctrl_state = TSX_CTRL_DISABLE;
+ } else if (!strcmp(arg, "auto")) {
+ tsx_ctrl_state = x86_get_tsx_auto_mode();
+ } else {
+ tsx_ctrl_state = TSX_CTRL_DISABLE;
+ pr_err("tsx: invalid option, defaulting to off\n");
+ }
+ } else {
+ /* tsx= not provided */
+ if (IS_ENABLED(CONFIG_X86_INTEL_TSX_MODE_AUTO))
+ tsx_ctrl_state = x86_get_tsx_auto_mode();
+ else if (IS_ENABLED(CONFIG_X86_INTEL_TSX_MODE_OFF))
+ tsx_ctrl_state = TSX_CTRL_DISABLE;
+ else
+ tsx_ctrl_state = TSX_CTRL_ENABLE;
+ }
+
+ if (tsx_ctrl_state == TSX_CTRL_DISABLE) {
+ tsx_disable();
+
+ /*
+ * tsx_disable() will change the state of the
+ * RTM CPUID bit. Clear it here since it is now
+ * expected to be not set.
+ */
+ setup_clear_cpu_cap(X86_FEATURE_RTM);
+ } else if (tsx_ctrl_state == TSX_CTRL_ENABLE) {
+
+ /*
+ * HW defaults TSX to be enabled at bootup.
+ * We may still need the TSX enable support
+ * during init for special cases like
+ * kexec after TSX is disabled.
+ */
+ tsx_enable();
+
+ /*
+ * tsx_enable() will change the state of the
+ * RTM CPUID bit. Force it here since it is now
+ * expected to be set.
+ */
+ setup_force_cpu_cap(X86_FEATURE_RTM);
+ }
+}
diff --git a/arch/x86/kernel/dumpstack_64.c b/arch/x86/kernel/dumpstack_64.c
index 753b8cf..87b9789 100644
--- a/arch/x86/kernel/dumpstack_64.c
+++ b/arch/x86/kernel/dumpstack_64.c
@@ -94,6 +94,13 @@ static bool in_exception_stack(unsigned long *stack, struct stack_info *info)
BUILD_BUG_ON(N_EXCEPTION_STACKS != 6);
begin = (unsigned long)__this_cpu_read(cea_exception_stacks);
+ /*
+ * Handle the case where stack trace is collected _before_
+ * cea_exception_stacks had been initialized.
+ */
+ if (!begin)
+ return false;
+
end = begin + sizeof(struct cea_exception_stacks);
/* Bail if @stack is outside the exception stack area. */
if (stk < begin || stk >= end)
diff --git a/arch/x86/kernel/early-quirks.c b/arch/x86/kernel/early-quirks.c
index 6f6b1d0..4cba91e 100644
--- a/arch/x86/kernel/early-quirks.c
+++ b/arch/x86/kernel/early-quirks.c
@@ -710,6 +710,8 @@ static struct chipset early_qrk[] __initdata = {
*/
{ PCI_VENDOR_ID_INTEL, 0x0f00,
PCI_CLASS_BRIDGE_HOST, PCI_ANY_ID, 0, force_disable_hpet},
+ { PCI_VENDOR_ID_INTEL, 0x3ec4,
+ PCI_CLASS_BRIDGE_HOST, PCI_ANY_ID, 0, force_disable_hpet},
{ PCI_VENDOR_ID_BROADCOM, 0x4331,
PCI_CLASS_NETWORK_OTHER, PCI_ANY_ID, 0, apple_airport_reset},
{}
diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c
index c59454c..7e322e2 100644
--- a/arch/x86/kernel/tsc.c
+++ b/arch/x86/kernel/tsc.c
@@ -1505,6 +1505,9 @@ void __init tsc_init(void)
return;
}
+ if (tsc_clocksource_reliable || no_tsc_watchdog)
+ clocksource_tsc_early.flags &= ~CLOCK_SOURCE_MUST_VERIFY;
+
clocksource_register_khz(&clocksource_tsc_early, tsc_khz);
detect_art();
}
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index 24c23c6..2ce9da5 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -37,6 +37,7 @@
#include <linux/uaccess.h>
#include <linux/hash.h>
#include <linux/kern_levels.h>
+#include <linux/kthread.h>
#include <asm/page.h>
#include <asm/pat.h>
@@ -47,6 +48,35 @@
#include <asm/kvm_page_track.h>
#include "trace.h"
+extern bool itlb_multihit_kvm_mitigation;
+
+static int __read_mostly nx_huge_pages = -1;
+#ifdef CONFIG_PREEMPT_RT
+/* Recovery can cause latency spikes, disable it for PREEMPT_RT. */
+static uint __read_mostly nx_huge_pages_recovery_ratio = 0;
+#else
+static uint __read_mostly nx_huge_pages_recovery_ratio = 60;
+#endif
+
+static int set_nx_huge_pages(const char *val, const struct kernel_param *kp);
+static int set_nx_huge_pages_recovery_ratio(const char *val, const struct kernel_param *kp);
+
+static struct kernel_param_ops nx_huge_pages_ops = {
+ .set = set_nx_huge_pages,
+ .get = param_get_bool,
+};
+
+static struct kernel_param_ops nx_huge_pages_recovery_ratio_ops = {
+ .set = set_nx_huge_pages_recovery_ratio,
+ .get = param_get_uint,
+};
+
+module_param_cb(nx_huge_pages, &nx_huge_pages_ops, &nx_huge_pages, 0644);
+__MODULE_PARM_TYPE(nx_huge_pages, "bool");
+module_param_cb(nx_huge_pages_recovery_ratio, &nx_huge_pages_recovery_ratio_ops,
+ &nx_huge_pages_recovery_ratio, 0644);
+__MODULE_PARM_TYPE(nx_huge_pages_recovery_ratio, "uint");
+
/*
* When setting this variable to true it enables Two-Dimensional-Paging
* where the hardware walks 2 page tables:
@@ -352,6 +382,11 @@ static inline bool spte_ad_need_write_protect(u64 spte)
return (spte & SPTE_SPECIAL_MASK) != SPTE_AD_ENABLED_MASK;
}
+static bool is_nx_huge_page_enabled(void)
+{
+ return READ_ONCE(nx_huge_pages);
+}
+
static inline u64 spte_shadow_accessed_mask(u64 spte)
{
MMU_WARN_ON(is_mmio_spte(spte));
@@ -1190,6 +1225,17 @@ static void account_shadowed(struct kvm *kvm, struct kvm_mmu_page *sp)
kvm_mmu_gfn_disallow_lpage(slot, gfn);
}
+static void account_huge_nx_page(struct kvm *kvm, struct kvm_mmu_page *sp)
+{
+ if (sp->lpage_disallowed)
+ return;
+
+ ++kvm->stat.nx_lpage_splits;
+ list_add_tail(&sp->lpage_disallowed_link,
+ &kvm->arch.lpage_disallowed_mmu_pages);
+ sp->lpage_disallowed = true;
+}
+
static void unaccount_shadowed(struct kvm *kvm, struct kvm_mmu_page *sp)
{
struct kvm_memslots *slots;
@@ -1207,6 +1253,13 @@ static void unaccount_shadowed(struct kvm *kvm, struct kvm_mmu_page *sp)
kvm_mmu_gfn_allow_lpage(slot, gfn);
}
+static void unaccount_huge_nx_page(struct kvm *kvm, struct kvm_mmu_page *sp)
+{
+ --kvm->stat.nx_lpage_splits;
+ sp->lpage_disallowed = false;
+ list_del(&sp->lpage_disallowed_link);
+}
+
static bool __mmu_gfn_lpage_is_disallowed(gfn_t gfn, int level,
struct kvm_memory_slot *slot)
{
@@ -2792,6 +2845,9 @@ static bool __kvm_mmu_prepare_zap_page(struct kvm *kvm,
kvm_reload_remote_mmus(kvm);
}
+ if (sp->lpage_disallowed)
+ unaccount_huge_nx_page(kvm, sp);
+
sp->role.invalid = 1;
return list_unstable;
}
@@ -3013,6 +3069,11 @@ static int set_spte(struct kvm_vcpu *vcpu, u64 *sptep,
if (!speculative)
spte |= spte_shadow_accessed_mask(spte);
+ if (level > PT_PAGE_TABLE_LEVEL && (pte_access & ACC_EXEC_MASK) &&
+ is_nx_huge_page_enabled()) {
+ pte_access &= ~ACC_EXEC_MASK;
+ }
+
if (pte_access & ACC_EXEC_MASK)
spte |= shadow_x_mask;
else
@@ -3233,9 +3294,32 @@ static void direct_pte_prefetch(struct kvm_vcpu *vcpu, u64 *sptep)
__direct_pte_prefetch(vcpu, sp, sptep);
}
+static void disallowed_hugepage_adjust(struct kvm_shadow_walk_iterator it,
+ gfn_t gfn, kvm_pfn_t *pfnp, int *levelp)
+{
+ int level = *levelp;
+ u64 spte = *it.sptep;
+
+ if (it.level == level && level > PT_PAGE_TABLE_LEVEL &&
+ is_nx_huge_page_enabled() &&
+ is_shadow_present_pte(spte) &&
+ !is_large_pte(spte)) {
+ /*
+ * A small SPTE exists for this pfn, but FNAME(fetch)
+ * and __direct_map would like to create a large PTE
+ * instead: just force them to go down another level,
+ * patching back for them into pfn the next 9 bits of
+ * the address.
+ */
+ u64 page_mask = KVM_PAGES_PER_HPAGE(level) - KVM_PAGES_PER_HPAGE(level - 1);
+ *pfnp |= gfn & page_mask;
+ (*levelp)--;
+ }
+}
+
static int __direct_map(struct kvm_vcpu *vcpu, gpa_t gpa, int write,
int map_writable, int level, kvm_pfn_t pfn,
- bool prefault)
+ bool prefault, bool lpage_disallowed)
{
struct kvm_shadow_walk_iterator it;
struct kvm_mmu_page *sp;
@@ -3248,6 +3332,12 @@ static int __direct_map(struct kvm_vcpu *vcpu, gpa_t gpa, int write,
trace_kvm_mmu_spte_requested(gpa, level, pfn);
for_each_shadow_entry(vcpu, gpa, it) {
+ /*
+ * We cannot overwrite existing page tables with an NX
+ * large page, as the leaf could be executable.
+ */
+ disallowed_hugepage_adjust(it, gfn, &pfn, &level);
+
base_gfn = gfn & ~(KVM_PAGES_PER_HPAGE(it.level) - 1);
if (it.level == level)
break;
@@ -3258,6 +3348,8 @@ static int __direct_map(struct kvm_vcpu *vcpu, gpa_t gpa, int write,
it.level - 1, true, ACC_ALL);
link_shadow_page(vcpu, it.sptep, sp);
+ if (lpage_disallowed)
+ account_huge_nx_page(vcpu->kvm, sp);
}
}
@@ -3306,7 +3398,7 @@ static void transparent_hugepage_adjust(struct kvm_vcpu *vcpu,
* here.
*/
if (!is_error_noslot_pfn(pfn) && !kvm_is_reserved_pfn(pfn) &&
- level == PT_PAGE_TABLE_LEVEL &&
+ !kvm_is_zone_device_pfn(pfn) && level == PT_PAGE_TABLE_LEVEL &&
PageTransCompoundMap(pfn_to_page(pfn)) &&
!mmu_gfn_lpage_is_disallowed(vcpu, gfn, PT_DIRECTORY_LEVEL)) {
unsigned long mask;
@@ -3550,11 +3642,14 @@ static int nonpaging_map(struct kvm_vcpu *vcpu, gva_t v, u32 error_code,
{
int r;
int level;
- bool force_pt_level = false;
+ bool force_pt_level;
kvm_pfn_t pfn;
unsigned long mmu_seq;
bool map_writable, write = error_code & PFERR_WRITE_MASK;
+ bool lpage_disallowed = (error_code & PFERR_FETCH_MASK) &&
+ is_nx_huge_page_enabled();
+ force_pt_level = lpage_disallowed;
level = mapping_level(vcpu, gfn, &force_pt_level);
if (likely(!force_pt_level)) {
/*
@@ -3588,7 +3683,8 @@ static int nonpaging_map(struct kvm_vcpu *vcpu, gva_t v, u32 error_code,
goto out_unlock;
if (likely(!force_pt_level))
transparent_hugepage_adjust(vcpu, gfn, &pfn, &level);
- r = __direct_map(vcpu, v, write, map_writable, level, pfn, prefault);
+ r = __direct_map(vcpu, v, write, map_writable, level, pfn,
+ prefault, false);
out_unlock:
spin_unlock(&vcpu->kvm->mmu_lock);
kvm_release_pfn_clean(pfn);
@@ -4174,6 +4270,8 @@ static int tdp_page_fault(struct kvm_vcpu *vcpu, gva_t gpa, u32 error_code,
unsigned long mmu_seq;
int write = error_code & PFERR_WRITE_MASK;
bool map_writable;
+ bool lpage_disallowed = (error_code & PFERR_FETCH_MASK) &&
+ is_nx_huge_page_enabled();
MMU_WARN_ON(!VALID_PAGE(vcpu->arch.mmu->root_hpa));
@@ -4184,8 +4282,9 @@ static int tdp_page_fault(struct kvm_vcpu *vcpu, gva_t gpa, u32 error_code,
if (r)
return r;
- force_pt_level = !check_hugepage_cache_consistency(vcpu, gfn,
- PT_DIRECTORY_LEVEL);
+ force_pt_level =
+ lpage_disallowed ||
+ !check_hugepage_cache_consistency(vcpu, gfn, PT_DIRECTORY_LEVEL);
level = mapping_level(vcpu, gfn, &force_pt_level);
if (likely(!force_pt_level)) {
if (level > PT_DIRECTORY_LEVEL &&
@@ -4214,7 +4313,8 @@ static int tdp_page_fault(struct kvm_vcpu *vcpu, gva_t gpa, u32 error_code,
goto out_unlock;
if (likely(!force_pt_level))
transparent_hugepage_adjust(vcpu, gfn, &pfn, &level);
- r = __direct_map(vcpu, gpa, write, map_writable, level, pfn, prefault);
+ r = __direct_map(vcpu, gpa, write, map_writable, level, pfn,
+ prefault, lpage_disallowed);
out_unlock:
spin_unlock(&vcpu->kvm->mmu_lock);
kvm_release_pfn_clean(pfn);
@@ -5914,9 +6014,9 @@ static bool kvm_mmu_zap_collapsible_spte(struct kvm *kvm,
* the guest, and the guest page table is using 4K page size
* mapping if the indirect sp has level = 1.
*/
- if (sp->role.direct &&
- !kvm_is_reserved_pfn(pfn) &&
- PageTransCompoundMap(pfn_to_page(pfn))) {
+ if (sp->role.direct && !kvm_is_reserved_pfn(pfn) &&
+ !kvm_is_zone_device_pfn(pfn) &&
+ PageTransCompoundMap(pfn_to_page(pfn))) {
pte_list_remove(rmap_head, sptep);
if (kvm_available_flush_tlb_with_range())
@@ -6155,10 +6255,59 @@ static void kvm_set_mmio_spte_mask(void)
kvm_mmu_set_mmio_spte_mask(mask, mask, ACC_WRITE_MASK | ACC_USER_MASK);
}
+static bool get_nx_auto_mode(void)
+{
+ /* Return true when CPU has the bug, and mitigations are ON */
+ return boot_cpu_has_bug(X86_BUG_ITLB_MULTIHIT) && !cpu_mitigations_off();
+}
+
+static void __set_nx_huge_pages(bool val)
+{
+ nx_huge_pages = itlb_multihit_kvm_mitigation = val;
+}
+
+static int set_nx_huge_pages(const char *val, const struct kernel_param *kp)
+{
+ bool old_val = nx_huge_pages;
+ bool new_val;
+
+ /* In "auto" mode deploy workaround only if CPU has the bug. */
+ if (sysfs_streq(val, "off"))
+ new_val = 0;
+ else if (sysfs_streq(val, "force"))
+ new_val = 1;
+ else if (sysfs_streq(val, "auto"))
+ new_val = get_nx_auto_mode();
+ else if (strtobool(val, &new_val) < 0)
+ return -EINVAL;
+
+ __set_nx_huge_pages(new_val);
+
+ if (new_val != old_val) {
+ struct kvm *kvm;
+
+ mutex_lock(&kvm_lock);
+
+ list_for_each_entry(kvm, &vm_list, vm_list) {
+ mutex_lock(&kvm->slots_lock);
+ kvm_mmu_zap_all_fast(kvm);
+ mutex_unlock(&kvm->slots_lock);
+
+ wake_up_process(kvm->arch.nx_lpage_recovery_thread);
+ }
+ mutex_unlock(&kvm_lock);
+ }
+
+ return 0;
+}
+
int kvm_mmu_module_init(void)
{
int ret = -ENOMEM;
+ if (nx_huge_pages == -1)
+ __set_nx_huge_pages(get_nx_auto_mode());
+
/*
* MMU roles use union aliasing which is, generally speaking, an
* undefined behavior. However, we supposedly know how compilers behave
@@ -6238,3 +6387,116 @@ void kvm_mmu_module_exit(void)
unregister_shrinker(&mmu_shrinker);
mmu_audit_disable();
}
+
+static int set_nx_huge_pages_recovery_ratio(const char *val, const struct kernel_param *kp)
+{
+ unsigned int old_val;
+ int err;
+
+ old_val = nx_huge_pages_recovery_ratio;
+ err = param_set_uint(val, kp);
+ if (err)
+ return err;
+
+ if (READ_ONCE(nx_huge_pages) &&
+ !old_val && nx_huge_pages_recovery_ratio) {
+ struct kvm *kvm;
+
+ mutex_lock(&kvm_lock);
+
+ list_for_each_entry(kvm, &vm_list, vm_list)
+ wake_up_process(kvm->arch.nx_lpage_recovery_thread);
+
+ mutex_unlock(&kvm_lock);
+ }
+
+ return err;
+}
+
+static void kvm_recover_nx_lpages(struct kvm *kvm)
+{
+ int rcu_idx;
+ struct kvm_mmu_page *sp;
+ unsigned int ratio;
+ LIST_HEAD(invalid_list);
+ ulong to_zap;
+
+ rcu_idx = srcu_read_lock(&kvm->srcu);
+ spin_lock(&kvm->mmu_lock);
+
+ ratio = READ_ONCE(nx_huge_pages_recovery_ratio);
+ to_zap = ratio ? DIV_ROUND_UP(kvm->stat.nx_lpage_splits, ratio) : 0;
+ while (to_zap && !list_empty(&kvm->arch.lpage_disallowed_mmu_pages)) {
+ /*
+ * We use a separate list instead of just using active_mmu_pages
+ * because the number of lpage_disallowed pages is expected to
+ * be relatively small compared to the total.
+ */
+ sp = list_first_entry(&kvm->arch.lpage_disallowed_mmu_pages,
+ struct kvm_mmu_page,
+ lpage_disallowed_link);
+ WARN_ON_ONCE(!sp->lpage_disallowed);
+ kvm_mmu_prepare_zap_page(kvm, sp, &invalid_list);
+ WARN_ON_ONCE(sp->lpage_disallowed);
+
+ if (!--to_zap || need_resched() || spin_needbreak(&kvm->mmu_lock)) {
+ kvm_mmu_commit_zap_page(kvm, &invalid_list);
+ if (to_zap)
+ cond_resched_lock(&kvm->mmu_lock);
+ }
+ }
+
+ spin_unlock(&kvm->mmu_lock);
+ srcu_read_unlock(&kvm->srcu, rcu_idx);
+}
+
+static long get_nx_lpage_recovery_timeout(u64 start_time)
+{
+ return READ_ONCE(nx_huge_pages) && READ_ONCE(nx_huge_pages_recovery_ratio)
+ ? start_time + 60 * HZ - get_jiffies_64()
+ : MAX_SCHEDULE_TIMEOUT;
+}
+
+static int kvm_nx_lpage_recovery_worker(struct kvm *kvm, uintptr_t data)
+{
+ u64 start_time;
+ long remaining_time;
+
+ while (true) {
+ start_time = get_jiffies_64();
+ remaining_time = get_nx_lpage_recovery_timeout(start_time);
+
+ set_current_state(TASK_INTERRUPTIBLE);
+ while (!kthread_should_stop() && remaining_time > 0) {
+ schedule_timeout(remaining_time);
+ remaining_time = get_nx_lpage_recovery_timeout(start_time);
+ set_current_state(TASK_INTERRUPTIBLE);
+ }
+
+ set_current_state(TASK_RUNNING);
+
+ if (kthread_should_stop())
+ return 0;
+
+ kvm_recover_nx_lpages(kvm);
+ }
+}
+
+int kvm_mmu_post_init_vm(struct kvm *kvm)
+{
+ int err;
+
+ err = kvm_vm_create_worker_thread(kvm, kvm_nx_lpage_recovery_worker, 0,
+ "kvm-nx-lpage-recovery",
+ &kvm->arch.nx_lpage_recovery_thread);
+ if (!err)
+ kthread_unpark(kvm->arch.nx_lpage_recovery_thread);
+
+ return err;
+}
+
+void kvm_mmu_pre_destroy_vm(struct kvm *kvm)
+{
+ if (kvm->arch.nx_lpage_recovery_thread)
+ kthread_stop(kvm->arch.nx_lpage_recovery_thread);
+}
diff --git a/arch/x86/kvm/mmu.h b/arch/x86/kvm/mmu.h
index 11f8ec8..d55674f 100644
--- a/arch/x86/kvm/mmu.h
+++ b/arch/x86/kvm/mmu.h
@@ -210,4 +210,8 @@ void kvm_mmu_gfn_allow_lpage(struct kvm_memory_slot *slot, gfn_t gfn);
bool kvm_mmu_slot_gfn_write_protect(struct kvm *kvm,
struct kvm_memory_slot *slot, u64 gfn);
int kvm_arch_write_log_dirty(struct kvm_vcpu *vcpu);
+
+int kvm_mmu_post_init_vm(struct kvm *kvm);
+void kvm_mmu_pre_destroy_vm(struct kvm *kvm);
+
#endif
diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h
index 7d5cdb3..97b21e7 100644
--- a/arch/x86/kvm/paging_tmpl.h
+++ b/arch/x86/kvm/paging_tmpl.h
@@ -614,13 +614,14 @@ static void FNAME(pte_prefetch)(struct kvm_vcpu *vcpu, struct guest_walker *gw,
static int FNAME(fetch)(struct kvm_vcpu *vcpu, gva_t addr,
struct guest_walker *gw,
int write_fault, int hlevel,
- kvm_pfn_t pfn, bool map_writable, bool prefault)
+ kvm_pfn_t pfn, bool map_writable, bool prefault,
+ bool lpage_disallowed)
{
struct kvm_mmu_page *sp = NULL;
struct kvm_shadow_walk_iterator it;
unsigned direct_access, access = gw->pt_access;
int top_level, ret;
- gfn_t base_gfn;
+ gfn_t gfn, base_gfn;
direct_access = gw->pte_access;
@@ -665,13 +666,25 @@ static int FNAME(fetch)(struct kvm_vcpu *vcpu, gva_t addr,
link_shadow_page(vcpu, it.sptep, sp);
}
- base_gfn = gw->gfn;
+ /*
+ * FNAME(page_fault) might have clobbered the bottom bits of
+ * gw->gfn, restore them from the virtual address.
+ */
+ gfn = gw->gfn | ((addr & PT_LVL_OFFSET_MASK(gw->level)) >> PAGE_SHIFT);
+ base_gfn = gfn;
trace_kvm_mmu_spte_requested(addr, gw->level, pfn);
for (; shadow_walk_okay(&it); shadow_walk_next(&it)) {
clear_sp_write_flooding_count(it.sptep);
- base_gfn = gw->gfn & ~(KVM_PAGES_PER_HPAGE(it.level) - 1);
+
+ /*
+ * We cannot overwrite existing page tables with an NX
+ * large page, as the leaf could be executable.
+ */
+ disallowed_hugepage_adjust(it, gfn, &pfn, &hlevel);
+
+ base_gfn = gfn & ~(KVM_PAGES_PER_HPAGE(it.level) - 1);
if (it.level == hlevel)
break;
@@ -683,6 +696,8 @@ static int FNAME(fetch)(struct kvm_vcpu *vcpu, gva_t addr,
sp = kvm_mmu_get_page(vcpu, base_gfn, addr,
it.level - 1, true, direct_access);
link_shadow_page(vcpu, it.sptep, sp);
+ if (lpage_disallowed)
+ account_huge_nx_page(vcpu->kvm, sp);
}
}
@@ -759,9 +774,11 @@ static int FNAME(page_fault)(struct kvm_vcpu *vcpu, gva_t addr, u32 error_code,
int r;
kvm_pfn_t pfn;
int level = PT_PAGE_TABLE_LEVEL;
- bool force_pt_level = false;
unsigned long mmu_seq;
bool map_writable, is_self_change_mapping;
+ bool lpage_disallowed = (error_code & PFERR_FETCH_MASK) &&
+ is_nx_huge_page_enabled();
+ bool force_pt_level = lpage_disallowed;
pgprintk("%s: addr %lx err %x\n", __func__, addr, error_code);
@@ -851,7 +868,7 @@ static int FNAME(page_fault)(struct kvm_vcpu *vcpu, gva_t addr, u32 error_code,
if (!force_pt_level)
transparent_hugepage_adjust(vcpu, walker.gfn, &pfn, &level);
r = FNAME(fetch)(vcpu, addr, &walker, write_fault,
- level, pfn, map_writable, prefault);
+ level, pfn, map_writable, prefault, lpage_disallowed);
kvm_mmu_audit(vcpu, AUDIT_POST_PAGE_FAULT);
out_unlock:
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index 5d21a4a..04a8212 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -1268,6 +1268,18 @@ static void vmx_vcpu_pi_load(struct kvm_vcpu *vcpu, int cpu)
if (!pi_test_sn(pi_desc) && vcpu->cpu == cpu)
return;
+ /*
+ * If the 'nv' field is POSTED_INTR_WAKEUP_VECTOR, do not change
+ * PI.NDST: pi_post_block is the one expected to change PID.NDST and the
+ * wakeup handler expects the vCPU to be on the blocked_vcpu_list that
+ * matches PI.NDST. Otherwise, a vcpu may not be able to be woken up
+ * correctly.
+ */
+ if (pi_desc->nv == POSTED_INTR_WAKEUP_VECTOR || vcpu->cpu == cpu) {
+ pi_clear_sn(pi_desc);
+ goto after_clear_sn;
+ }
+
/* The full case. */
do {
old.control = new.control = pi_desc->control;
@@ -1283,6 +1295,8 @@ static void vmx_vcpu_pi_load(struct kvm_vcpu *vcpu, int cpu)
} while (cmpxchg64(&pi_desc->control, old.control,
new.control) != old.control);
+after_clear_sn:
+
/*
* Clear SN before reading the bitmap. The VT-d firmware
* writes the bitmap and reads SN atomically (5.2.3 in the
@@ -1291,7 +1305,7 @@ static void vmx_vcpu_pi_load(struct kvm_vcpu *vcpu, int cpu)
*/
smp_mb__after_atomic();
- if (!bitmap_empty((unsigned long *)pi_desc->pir, NR_VECTORS))
+ if (!pi_is_pir_empty(pi_desc))
pi_set_on(pi_desc);
}
@@ -6137,7 +6151,7 @@ static int vmx_sync_pir_to_irr(struct kvm_vcpu *vcpu)
if (pi_test_on(&vmx->pi_desc)) {
pi_clear_on(&vmx->pi_desc);
/*
- * IOMMU can write to PIR.ON, so the barrier matters even on UP.
+ * IOMMU can write to PID.ON, so the barrier matters even on UP.
* But on x86 this is just a compiler barrier anyway.
*/
smp_mb__after_atomic();
@@ -6167,7 +6181,10 @@ static int vmx_sync_pir_to_irr(struct kvm_vcpu *vcpu)
static bool vmx_dy_apicv_has_pending_interrupt(struct kvm_vcpu *vcpu)
{
- return pi_test_on(vcpu_to_pi_desc(vcpu));
+ struct pi_desc *pi_desc = vcpu_to_pi_desc(vcpu);
+
+ return pi_test_on(pi_desc) ||
+ (pi_test_sn(pi_desc) && !pi_is_pir_empty(pi_desc));
}
static void vmx_load_eoi_exitmap(struct kvm_vcpu *vcpu, u64 *eoi_exit_bitmap)
diff --git a/arch/x86/kvm/vmx/vmx.h b/arch/x86/kvm/vmx/vmx.h
index bee1668..5a0f34b 100644
--- a/arch/x86/kvm/vmx/vmx.h
+++ b/arch/x86/kvm/vmx/vmx.h
@@ -355,6 +355,11 @@ static inline int pi_test_and_set_pir(int vector, struct pi_desc *pi_desc)
return test_and_set_bit(vector, (unsigned long *)pi_desc->pir);
}
+static inline bool pi_is_pir_empty(struct pi_desc *pi_desc)
+{
+ return bitmap_empty((unsigned long *)pi_desc->pir, NR_VECTORS);
+}
+
static inline void pi_set_sn(struct pi_desc *pi_desc)
{
set_bit(POSTED_INTR_SN,
@@ -373,6 +378,12 @@ static inline void pi_clear_on(struct pi_desc *pi_desc)
(unsigned long *)&pi_desc->control);
}
+static inline void pi_clear_sn(struct pi_desc *pi_desc)
+{
+ clear_bit(POSTED_INTR_SN,
+ (unsigned long *)&pi_desc->control);
+}
+
static inline int pi_test_on(struct pi_desc *pi_desc)
{
return test_bit(POSTED_INTR_ON,
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index ff395f8..5d53052 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -213,6 +213,7 @@ struct kvm_stats_debugfs_item debugfs_entries[] = {
{ "mmu_unsync", VM_STAT(mmu_unsync) },
{ "remote_tlb_flush", VM_STAT(remote_tlb_flush) },
{ "largepages", VM_STAT(lpages, .mode = 0444) },
+ { "nx_largepages_splitted", VM_STAT(nx_lpage_splits, .mode = 0444) },
{ "max_mmu_page_hash_collisions",
VM_STAT(max_mmu_page_hash_collisions) },
{ NULL }
@@ -1132,13 +1133,15 @@ EXPORT_SYMBOL_GPL(kvm_rdpmc);
* List of msr numbers which we expose to userspace through KVM_GET_MSRS
* and KVM_SET_MSRS, and KVM_GET_MSR_INDEX_LIST.
*
- * This list is modified at module load time to reflect the
+ * The three MSR lists(msrs_to_save, emulated_msrs, msr_based_features)
+ * extract the supported MSRs from the related const lists.
+ * msrs_to_save is selected from the msrs_to_save_all to reflect the
* capabilities of the host cpu. This capabilities test skips MSRs that are
- * kvm-specific. Those are put in emulated_msrs; filtering of emulated_msrs
+ * kvm-specific. Those are put in emulated_msrs_all; filtering of emulated_msrs
* may depend on host virtualization features rather than host cpu features.
*/
-static u32 msrs_to_save[] = {
+static const u32 msrs_to_save_all[] = {
MSR_IA32_SYSENTER_CS, MSR_IA32_SYSENTER_ESP, MSR_IA32_SYSENTER_EIP,
MSR_STAR,
#ifdef CONFIG_X86_64
@@ -1179,9 +1182,10 @@ static u32 msrs_to_save[] = {
MSR_ARCH_PERFMON_EVENTSEL0 + 16, MSR_ARCH_PERFMON_EVENTSEL0 + 17,
};
+static u32 msrs_to_save[ARRAY_SIZE(msrs_to_save_all)];
static unsigned num_msrs_to_save;
-static u32 emulated_msrs[] = {
+static const u32 emulated_msrs_all[] = {
MSR_KVM_SYSTEM_TIME, MSR_KVM_WALL_CLOCK,
MSR_KVM_SYSTEM_TIME_NEW, MSR_KVM_WALL_CLOCK_NEW,
HV_X64_MSR_GUEST_OS_ID, HV_X64_MSR_HYPERCALL,
@@ -1220,7 +1224,7 @@ static u32 emulated_msrs[] = {
* by arch/x86/kvm/vmx/nested.c based on CPUID or other MSRs.
* We always support the "true" VMX control MSRs, even if the host
* processor does not, so I am putting these registers here rather
- * than in msrs_to_save.
+ * than in msrs_to_save_all.
*/
MSR_IA32_VMX_BASIC,
MSR_IA32_VMX_TRUE_PINBASED_CTLS,
@@ -1239,13 +1243,14 @@ static u32 emulated_msrs[] = {
MSR_KVM_POLL_CONTROL,
};
+static u32 emulated_msrs[ARRAY_SIZE(emulated_msrs_all)];
static unsigned num_emulated_msrs;
/*
* List of msr numbers which are used to expose MSR-based features that
* can be used by a hypervisor to validate requested CPU features.
*/
-static u32 msr_based_features[] = {
+static const u32 msr_based_features_all[] = {
MSR_IA32_VMX_BASIC,
MSR_IA32_VMX_TRUE_PINBASED_CTLS,
MSR_IA32_VMX_PINBASED_CTLS,
@@ -1270,6 +1275,7 @@ static u32 msr_based_features[] = {
MSR_IA32_ARCH_CAPABILITIES,
};
+static u32 msr_based_features[ARRAY_SIZE(msr_based_features_all)];
static unsigned int num_msr_based_features;
static u64 kvm_get_arch_capabilities(void)
@@ -1280,6 +1286,14 @@ static u64 kvm_get_arch_capabilities(void)
rdmsrl(MSR_IA32_ARCH_CAPABILITIES, data);
/*
+ * If nx_huge_pages is enabled, KVM's shadow paging will ensure that
+ * the nested hypervisor runs with NX huge pages. If it is not,
+ * L1 is anyway vulnerable to ITLB_MULTIHIT explots from other
+ * L1 guests, so it need not worry about its own (L2) guests.
+ */
+ data |= ARCH_CAP_PSCHANGE_MC_NO;
+
+ /*
* If we're doing cache flushes (either "always" or "cond")
* we will do one whenever the guest does a vmlaunch/vmresume.
* If an outer hypervisor is doing the cache flush for us
@@ -1298,6 +1312,25 @@ static u64 kvm_get_arch_capabilities(void)
if (!boot_cpu_has_bug(X86_BUG_MDS))
data |= ARCH_CAP_MDS_NO;
+ /*
+ * On TAA affected systems, export MDS_NO=0 when:
+ * - TSX is enabled on the host, i.e. X86_FEATURE_RTM=1.
+ * - Updated microcode is present. This is detected by
+ * the presence of ARCH_CAP_TSX_CTRL_MSR and ensures
+ * that VERW clears CPU buffers.
+ *
+ * When MDS_NO=0 is exported, guests deploy clear CPU buffer
+ * mitigation and don't complain:
+ *
+ * "Vulnerable: Clear CPU buffers attempted, no microcode"
+ *
+ * If TSX is disabled on the system, guests are also mitigated against
+ * TAA and clear CPU buffer mitigation is not required for guests.
+ */
+ if (boot_cpu_has_bug(X86_BUG_TAA) && boot_cpu_has(X86_FEATURE_RTM) &&
+ (data & ARCH_CAP_TSX_CTRL_MSR))
+ data &= ~ARCH_CAP_MDS_NO;
+
return data;
}
@@ -5090,22 +5123,26 @@ static void kvm_init_msr_list(void)
{
struct x86_pmu_capability x86_pmu;
u32 dummy[2];
- unsigned i, j;
+ unsigned i;
BUILD_BUG_ON_MSG(INTEL_PMC_MAX_FIXED != 4,
- "Please update the fixed PMCs in msrs_to_save[]");
+ "Please update the fixed PMCs in msrs_to_saved_all[]");
perf_get_x86_pmu_capability(&x86_pmu);
- for (i = j = 0; i < ARRAY_SIZE(msrs_to_save); i++) {
- if (rdmsr_safe(msrs_to_save[i], &dummy[0], &dummy[1]) < 0)
+ num_msrs_to_save = 0;
+ num_emulated_msrs = 0;
+ num_msr_based_features = 0;
+
+ for (i = 0; i < ARRAY_SIZE(msrs_to_save_all); i++) {
+ if (rdmsr_safe(msrs_to_save_all[i], &dummy[0], &dummy[1]) < 0)
continue;
/*
* Even MSRs that are valid in the host may not be exposed
* to the guests in some cases.
*/
- switch (msrs_to_save[i]) {
+ switch (msrs_to_save_all[i]) {
case MSR_IA32_BNDCFGS:
if (!kvm_mpx_supported())
continue;
@@ -5133,17 +5170,17 @@ static void kvm_init_msr_list(void)
break;
case MSR_IA32_RTIT_ADDR0_A ... MSR_IA32_RTIT_ADDR3_B: {
if (!kvm_x86_ops->pt_supported() ||
- msrs_to_save[i] - MSR_IA32_RTIT_ADDR0_A >=
+ msrs_to_save_all[i] - MSR_IA32_RTIT_ADDR0_A >=
intel_pt_validate_hw_cap(PT_CAP_num_address_ranges) * 2)
continue;
break;
case MSR_ARCH_PERFMON_PERFCTR0 ... MSR_ARCH_PERFMON_PERFCTR0 + 17:
- if (msrs_to_save[i] - MSR_ARCH_PERFMON_PERFCTR0 >=
+ if (msrs_to_save_all[i] - MSR_ARCH_PERFMON_PERFCTR0 >=
min(INTEL_PMC_MAX_GENERIC, x86_pmu.num_counters_gp))
continue;
break;
case MSR_ARCH_PERFMON_EVENTSEL0 ... MSR_ARCH_PERFMON_EVENTSEL0 + 17:
- if (msrs_to_save[i] - MSR_ARCH_PERFMON_EVENTSEL0 >=
+ if (msrs_to_save_all[i] - MSR_ARCH_PERFMON_EVENTSEL0 >=
min(INTEL_PMC_MAX_GENERIC, x86_pmu.num_counters_gp))
continue;
}
@@ -5151,34 +5188,25 @@ static void kvm_init_msr_list(void)
break;
}
- if (j < i)
- msrs_to_save[j] = msrs_to_save[i];
- j++;
+ msrs_to_save[num_msrs_to_save++] = msrs_to_save_all[i];
}
- num_msrs_to_save = j;
- for (i = j = 0; i < ARRAY_SIZE(emulated_msrs); i++) {
- if (!kvm_x86_ops->has_emulated_msr(emulated_msrs[i]))
+ for (i = 0; i < ARRAY_SIZE(emulated_msrs_all); i++) {
+ if (!kvm_x86_ops->has_emulated_msr(emulated_msrs_all[i]))
continue;
- if (j < i)
- emulated_msrs[j] = emulated_msrs[i];
- j++;
+ emulated_msrs[num_emulated_msrs++] = emulated_msrs_all[i];
}
- num_emulated_msrs = j;
- for (i = j = 0; i < ARRAY_SIZE(msr_based_features); i++) {
+ for (i = 0; i < ARRAY_SIZE(msr_based_features_all); i++) {
struct kvm_msr_entry msr;
- msr.index = msr_based_features[i];
+ msr.index = msr_based_features_all[i];
if (kvm_get_msr_feature(&msr))
continue;
- if (j < i)
- msr_based_features[j] = msr_based_features[i];
- j++;
+ msr_based_features[num_msr_based_features++] = msr_based_features_all[i];
}
- num_msr_based_features = j;
}
static int vcpu_mmio_write(struct kvm_vcpu *vcpu, gpa_t addr, int len,
@@ -9428,6 +9456,7 @@ int kvm_arch_init_vm(struct kvm *kvm, unsigned long type)
INIT_HLIST_HEAD(&kvm->arch.mask_notifier_list);
INIT_LIST_HEAD(&kvm->arch.active_mmu_pages);
INIT_LIST_HEAD(&kvm->arch.zapped_obsolete_pages);
+ INIT_LIST_HEAD(&kvm->arch.lpage_disallowed_mmu_pages);
INIT_LIST_HEAD(&kvm->arch.assigned_dev_head);
atomic_set(&kvm->arch.noncoherent_dma_count, 0);
@@ -9456,6 +9485,11 @@ int kvm_arch_init_vm(struct kvm *kvm, unsigned long type)
return kvm_x86_ops->vm_init(kvm);
}
+int kvm_arch_post_init_vm(struct kvm *kvm)
+{
+ return kvm_mmu_post_init_vm(kvm);
+}
+
static void kvm_unload_vcpu_mmu(struct kvm_vcpu *vcpu)
{
vcpu_load(vcpu);
@@ -9557,6 +9591,11 @@ int x86_set_memory_region(struct kvm *kvm, int id, gpa_t gpa, u32 size)
}
EXPORT_SYMBOL_GPL(x86_set_memory_region);
+void kvm_arch_pre_destroy_vm(struct kvm *kvm)
+{
+ kvm_mmu_pre_destroy_vm(kvm);
+}
+
void kvm_arch_destroy_vm(struct kvm *kvm)
{
if (current->mm == kvm->mm) {
diff --git a/block/bfq-iosched.c b/block/bfq-iosched.c
index 0319d63..0c62144 100644
--- a/block/bfq-iosched.c
+++ b/block/bfq-iosched.c
@@ -2713,6 +2713,28 @@ static void bfq_bfqq_save_state(struct bfq_queue *bfqq)
}
}
+
+static
+void bfq_release_process_ref(struct bfq_data *bfqd, struct bfq_queue *bfqq)
+{
+ /*
+ * To prevent bfqq's service guarantees from being violated,
+ * bfqq may be left busy, i.e., queued for service, even if
+ * empty (see comments in __bfq_bfqq_expire() for
+ * details). But, if no process will send requests to bfqq any
+ * longer, then there is no point in keeping bfqq queued for
+ * service. In addition, keeping bfqq queued for service, but
+ * with no process ref any longer, may have caused bfqq to be
+ * freed when dequeued from service. But this is assumed to
+ * never happen.
+ */
+ if (bfq_bfqq_busy(bfqq) && RB_EMPTY_ROOT(&bfqq->sort_list) &&
+ bfqq != bfqd->in_service_queue)
+ bfq_del_bfqq_busy(bfqd, bfqq, false);
+
+ bfq_put_queue(bfqq);
+}
+
static void
bfq_merge_bfqqs(struct bfq_data *bfqd, struct bfq_io_cq *bic,
struct bfq_queue *bfqq, struct bfq_queue *new_bfqq)
@@ -2783,8 +2805,7 @@ bfq_merge_bfqqs(struct bfq_data *bfqd, struct bfq_io_cq *bic,
*/
new_bfqq->pid = -1;
bfqq->bic = NULL;
- /* release process reference to bfqq */
- bfq_put_queue(bfqq);
+ bfq_release_process_ref(bfqd, bfqq);
}
static bool bfq_allow_bio_merge(struct request_queue *q, struct request *rq,
@@ -4899,7 +4920,7 @@ static void bfq_exit_bfqq(struct bfq_data *bfqd, struct bfq_queue *bfqq)
bfq_put_cooperator(bfqq);
- bfq_put_queue(bfqq); /* release process reference */
+ bfq_release_process_ref(bfqd, bfqq);
}
static void bfq_exit_icq_bfqq(struct bfq_io_cq *bic, bool is_sync)
@@ -5001,8 +5022,7 @@ static void bfq_check_ioprio_change(struct bfq_io_cq *bic, struct bio *bio)
bfqq = bic_to_bfqq(bic, false);
if (bfqq) {
- /* release process reference on this queue */
- bfq_put_queue(bfqq);
+ bfq_release_process_ref(bfqd, bfqq);
bfqq = bfq_get_queue(bfqd, bio, BLK_RW_ASYNC, bic);
bic_set_bfqq(bic, bfqq, false);
}
@@ -5963,7 +5983,7 @@ bfq_split_bfqq(struct bfq_io_cq *bic, struct bfq_queue *bfqq)
bfq_put_cooperator(bfqq);
- bfq_put_queue(bfqq);
+ bfq_release_process_ref(bfqq->bfqd, bfqq);
return NULL;
}
diff --git a/block/bio.c b/block/bio.c
index 8f0ed62..b1170ec 100644
--- a/block/bio.c
+++ b/block/bio.c
@@ -751,7 +751,7 @@ bool __bio_try_merge_page(struct bio *bio, struct page *page,
if (WARN_ON_ONCE(bio_flagged(bio, BIO_CLONED)))
return false;
- if (bio->bi_vcnt > 0) {
+ if (bio->bi_vcnt > 0 && !bio_full(bio, len)) {
struct bio_vec *bv = &bio->bi_io_vec[bio->bi_vcnt - 1];
if (page_is_mergeable(bv, page, len, off, same_page)) {
diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c
index 5d21027..1eb8895 100644
--- a/block/blk-cgroup.c
+++ b/block/blk-cgroup.c
@@ -934,9 +934,14 @@ static int blkcg_print_stat(struct seq_file *sf, void *v)
int i;
bool has_stats = false;
+ spin_lock_irq(&blkg->q->queue_lock);
+
+ if (!blkg->online)
+ goto skip;
+
dname = blkg_dev_name(blkg);
if (!dname)
- continue;
+ goto skip;
/*
* Hooray string manipulation, count is the size written NOT
@@ -946,8 +951,6 @@ static int blkcg_print_stat(struct seq_file *sf, void *v)
*/
off += scnprintf(buf+off, size-off, "%s ", dname);
- spin_lock_irq(&blkg->q->queue_lock);
-
blkg_rwstat_recursive_sum(blkg, NULL,
offsetof(struct blkcg_gq, stat_bytes), &rwstat);
rbytes = rwstat.cnt[BLKG_RWSTAT_READ];
@@ -960,8 +963,6 @@ static int blkcg_print_stat(struct seq_file *sf, void *v)
wios = rwstat.cnt[BLKG_RWSTAT_WRITE];
dios = rwstat.cnt[BLKG_RWSTAT_DISCARD];
- spin_unlock_irq(&blkg->q->queue_lock);
-
if (rbytes || wbytes || rios || wios) {
has_stats = true;
off += scnprintf(buf+off, size-off,
@@ -999,6 +1000,8 @@ static int blkcg_print_stat(struct seq_file *sf, void *v)
seq_commit(sf, -1);
}
}
+ skip:
+ spin_unlock_irq(&blkg->q->queue_lock);
}
rcu_read_unlock();
diff --git a/block/blk-iocost.c b/block/blk-iocost.c
index a7ed434..e01267f 100644
--- a/block/blk-iocost.c
+++ b/block/blk-iocost.c
@@ -1057,9 +1057,12 @@ static bool iocg_activate(struct ioc_gq *iocg, struct ioc_now *now)
atomic64_set(&iocg->active_period, cur_period);
/* already activated or breaking leaf-only constraint? */
- for (i = iocg->level; i > 0; i--)
- if (!list_empty(&iocg->active_list))
+ if (!list_empty(&iocg->active_list))
+ goto succeed_unlock;
+ for (i = iocg->level - 1; i > 0; i--)
+ if (!list_empty(&iocg->ancestors[i]->active_list))
goto fail_unlock;
+
if (iocg->child_active_sum)
goto fail_unlock;
@@ -1101,6 +1104,7 @@ static bool iocg_activate(struct ioc_gq *iocg, struct ioc_now *now)
ioc_start_period(ioc, now);
}
+succeed_unlock:
spin_unlock_irq(&ioc->lock);
return true;
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index ed56c6d..2ae95df 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -642,6 +642,19 @@ static int acpi_idle_bm_check(void)
return bm_status;
}
+static void wait_for_freeze(void)
+{
+#ifdef CONFIG_X86
+ /* No delay is needed if we are in guest */
+ if (boot_cpu_has(X86_FEATURE_HYPERVISOR))
+ return;
+#endif
+ /* Dummy wait op - must do something useless after P_LVL2 read
+ because chipsets cannot guarantee that STPCLK# signal
+ gets asserted in time to freeze execution properly. */
+ inl(acpi_gbl_FADT.xpm_timer_block.address);
+}
+
/**
* acpi_idle_do_entry - enter idle state using the appropriate method
* @cx: cstate data
@@ -658,10 +671,7 @@ static void __cpuidle acpi_idle_do_entry(struct acpi_processor_cx *cx)
} else {
/* IO port based C-state */
inb(cx->address);
- /* Dummy wait op - must do something useless after P_LVL2 read
- because chipsets cannot guarantee that STPCLK# signal
- gets asserted in time to freeze execution properly. */
- inl(acpi_gbl_FADT.xpm_timer_block.address);
+ wait_for_freeze();
}
}
@@ -682,8 +692,7 @@ static int acpi_idle_play_dead(struct cpuidle_device *dev, int index)
safe_halt();
else if (cx->entry_method == ACPI_CSTATE_SYSTEMIO) {
inb(cx->address);
- /* See comment in acpi_idle_do_entry() */
- inl(acpi_gbl_FADT.xpm_timer_block.address);
+ wait_for_freeze();
} else
return -ENODEV;
}
diff --git a/drivers/base/cpu.c b/drivers/base/cpu.c
index cc37511d..6265871 100644
--- a/drivers/base/cpu.c
+++ b/drivers/base/cpu.c
@@ -554,12 +554,27 @@ ssize_t __weak cpu_show_mds(struct device *dev,
return sprintf(buf, "Not affected\n");
}
+ssize_t __weak cpu_show_tsx_async_abort(struct device *dev,
+ struct device_attribute *attr,
+ char *buf)
+{
+ return sprintf(buf, "Not affected\n");
+}
+
+ssize_t __weak cpu_show_itlb_multihit(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ return sprintf(buf, "Not affected\n");
+}
+
static DEVICE_ATTR(meltdown, 0444, cpu_show_meltdown, NULL);
static DEVICE_ATTR(spectre_v1, 0444, cpu_show_spectre_v1, NULL);
static DEVICE_ATTR(spectre_v2, 0444, cpu_show_spectre_v2, NULL);
static DEVICE_ATTR(spec_store_bypass, 0444, cpu_show_spec_store_bypass, NULL);
static DEVICE_ATTR(l1tf, 0444, cpu_show_l1tf, NULL);
static DEVICE_ATTR(mds, 0444, cpu_show_mds, NULL);
+static DEVICE_ATTR(tsx_async_abort, 0444, cpu_show_tsx_async_abort, NULL);
+static DEVICE_ATTR(itlb_multihit, 0444, cpu_show_itlb_multihit, NULL);
static struct attribute *cpu_root_vulnerabilities_attrs[] = {
&dev_attr_meltdown.attr,
@@ -568,6 +583,8 @@ static struct attribute *cpu_root_vulnerabilities_attrs[] = {
&dev_attr_spec_store_bypass.attr,
&dev_attr_l1tf.attr,
&dev_attr_mds.attr,
+ &dev_attr_tsx_async_abort.attr,
+ &dev_attr_itlb_multihit.attr,
NULL
};
diff --git a/drivers/base/memory.c b/drivers/base/memory.c
index 55907c2..84c4e1f7 100644
--- a/drivers/base/memory.c
+++ b/drivers/base/memory.c
@@ -872,3 +872,39 @@ int walk_memory_blocks(unsigned long start, unsigned long size,
}
return ret;
}
+
+struct for_each_memory_block_cb_data {
+ walk_memory_blocks_func_t func;
+ void *arg;
+};
+
+static int for_each_memory_block_cb(struct device *dev, void *data)
+{
+ struct memory_block *mem = to_memory_block(dev);
+ struct for_each_memory_block_cb_data *cb_data = data;
+
+ return cb_data->func(mem, cb_data->arg);
+}
+
+/**
+ * for_each_memory_block - walk through all present memory blocks
+ *
+ * @arg: argument passed to func
+ * @func: callback for each memory block walked
+ *
+ * This function walks through all present memory blocks, calling func on
+ * each memory block.
+ *
+ * In case func() returns an error, walking is aborted and the error is
+ * returned.
+ */
+int for_each_memory_block(void *arg, walk_memory_blocks_func_t func)
+{
+ struct for_each_memory_block_cb_data cb_data = {
+ .func = func,
+ .arg = arg,
+ };
+
+ return bus_for_each_dev(&memory_subsys, NULL, &cb_data,
+ for_each_memory_block_cb);
+}
diff --git a/drivers/block/drbd/drbd_main.c b/drivers/block/drbd/drbd_main.c
index 5b24876..a18155c 100644
--- a/drivers/block/drbd/drbd_main.c
+++ b/drivers/block/drbd/drbd_main.c
@@ -786,7 +786,6 @@ int __drbd_send_protocol(struct drbd_connection *connection, enum drbd_packet cm
if (nc->tentative && connection->agreed_pro_version < 92) {
rcu_read_unlock();
- mutex_unlock(&sock->mutex);
drbd_err(connection, "--dry-run is not supported by peer");
return -EOPNOTSUPP;
}
diff --git a/drivers/block/rbd.c b/drivers/block/rbd.c
index 3913667..13527a0 100644
--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -2087,7 +2087,7 @@ static int rbd_object_map_update_finish(struct rbd_obj_request *obj_req,
struct rbd_device *rbd_dev = obj_req->img_request->rbd_dev;
struct ceph_osd_data *osd_data;
u64 objno;
- u8 state, new_state, current_state;
+ u8 state, new_state, uninitialized_var(current_state);
bool has_current_state;
void *p;
diff --git a/drivers/block/rsxx/core.c b/drivers/block/rsxx/core.c
index 76b73dd..10f6368 100644
--- a/drivers/block/rsxx/core.c
+++ b/drivers/block/rsxx/core.c
@@ -1000,8 +1000,10 @@ static void rsxx_pci_remove(struct pci_dev *dev)
cancel_work_sync(&card->event_work);
+ destroy_workqueue(card->event_wq);
rsxx_destroy_dev(card);
rsxx_dma_destroy(card);
+ destroy_workqueue(card->creg_ctrl.creg_wq);
spin_lock_irqsave(&card->irq_lock, flags);
rsxx_disable_ier_and_isr(card, CR_INTR_ALL);
diff --git a/drivers/char/hw_random/core.c b/drivers/char/hw_random/core.c
index 80b850e..8d53b8e 100644
--- a/drivers/char/hw_random/core.c
+++ b/drivers/char/hw_random/core.c
@@ -13,7 +13,6 @@
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/err.h>
-#include <linux/freezer.h>
#include <linux/fs.h>
#include <linux/hw_random.h>
#include <linux/kernel.h>
@@ -422,9 +421,7 @@ static int hwrng_fillfn(void *unused)
{
long rc;
- set_freezable();
-
- while (!kthread_freezable_should_stop(NULL)) {
+ while (!kthread_should_stop()) {
struct hwrng *rng;
rng = get_current_rng();
diff --git a/drivers/char/random.c b/drivers/char/random.c
index de434fe..01b8868 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -327,7 +327,6 @@
#include <linux/percpu.h>
#include <linux/cryptohash.h>
#include <linux/fips.h>
-#include <linux/freezer.h>
#include <linux/ptrace.h>
#include <linux/workqueue.h>
#include <linux/irq.h>
@@ -2500,8 +2499,7 @@ void add_hwgenerator_randomness(const char *buffer, size_t count,
* We'll be woken up again once below random_write_wakeup_thresh,
* or when the calling thread is about to terminate.
*/
- wait_event_freezable(random_write_wait,
- kthread_should_stop() ||
+ wait_event_interruptible(random_write_wait, kthread_should_stop() ||
ENTROPY_BITS(&input_pool) <= random_write_wakeup_bits);
mix_pool_bytes(poolp, buffer, count);
credit_entropy_bits(poolp, entropy);
diff --git a/drivers/clk/at91/clk-main.c b/drivers/clk/at91/clk-main.c
index 87083b3..37c2266 100644
--- a/drivers/clk/at91/clk-main.c
+++ b/drivers/clk/at91/clk-main.c
@@ -297,7 +297,10 @@ static int clk_main_probe_frequency(struct regmap *regmap)
regmap_read(regmap, AT91_CKGR_MCFR, &mcfr);
if (mcfr & AT91_PMC_MAINRDY)
return 0;
- usleep_range(MAINF_LOOP_MIN_WAIT, MAINF_LOOP_MAX_WAIT);
+ if (system_state < SYSTEM_RUNNING)
+ udelay(MAINF_LOOP_MIN_WAIT);
+ else
+ usleep_range(MAINF_LOOP_MIN_WAIT, MAINF_LOOP_MAX_WAIT);
} while (time_before(prep_time, timeout));
return -ETIMEDOUT;
diff --git a/drivers/clk/at91/sam9x60.c b/drivers/clk/at91/sam9x60.c
index 9790ddf..86238d5 100644
--- a/drivers/clk/at91/sam9x60.c
+++ b/drivers/clk/at91/sam9x60.c
@@ -43,6 +43,7 @@ static const struct clk_pll_characteristics upll_characteristics = {
};
static const struct clk_programmable_layout sam9x60_programmable_layout = {
+ .pres_mask = 0xff,
.pres_shift = 8,
.css_mask = 0x1f,
.have_slck_mck = 0,
diff --git a/drivers/clk/at91/sckc.c b/drivers/clk/at91/sckc.c
index 9bfe9a2..fac0ca5 100644
--- a/drivers/clk/at91/sckc.c
+++ b/drivers/clk/at91/sckc.c
@@ -76,7 +76,10 @@ static int clk_slow_osc_prepare(struct clk_hw *hw)
writel(tmp | osc->bits->cr_osc32en, sckcr);
- usleep_range(osc->startup_usec, osc->startup_usec + 1);
+ if (system_state < SYSTEM_RUNNING)
+ udelay(osc->startup_usec);
+ else
+ usleep_range(osc->startup_usec, osc->startup_usec + 1);
return 0;
}
@@ -187,7 +190,10 @@ static int clk_slow_rc_osc_prepare(struct clk_hw *hw)
writel(readl(sckcr) | osc->bits->cr_rcen, sckcr);
- usleep_range(osc->startup_usec, osc->startup_usec + 1);
+ if (system_state < SYSTEM_RUNNING)
+ udelay(osc->startup_usec);
+ else
+ usleep_range(osc->startup_usec, osc->startup_usec + 1);
return 0;
}
@@ -288,7 +294,10 @@ static int clk_sam9x5_slow_set_parent(struct clk_hw *hw, u8 index)
writel(tmp, sckcr);
- usleep_range(SLOWCK_SW_TIME_USEC, SLOWCK_SW_TIME_USEC + 1);
+ if (system_state < SYSTEM_RUNNING)
+ udelay(SLOWCK_SW_TIME_USEC);
+ else
+ usleep_range(SLOWCK_SW_TIME_USEC, SLOWCK_SW_TIME_USEC + 1);
return 0;
}
@@ -533,7 +542,10 @@ static int clk_sama5d4_slow_osc_prepare(struct clk_hw *hw)
return 0;
}
- usleep_range(osc->startup_usec, osc->startup_usec + 1);
+ if (system_state < SYSTEM_RUNNING)
+ udelay(osc->startup_usec);
+ else
+ usleep_range(osc->startup_usec, osc->startup_usec + 1);
osc->prepared = true;
return 0;
diff --git a/drivers/clk/clk-ast2600.c b/drivers/clk/clk-ast2600.c
index 1c1bb39..b1318e6 100644
--- a/drivers/clk/clk-ast2600.c
+++ b/drivers/clk/clk-ast2600.c
@@ -266,10 +266,11 @@ static int aspeed_g6_clk_enable(struct clk_hw *hw)
/* Enable clock */
if (gate->flags & CLK_GATE_SET_TO_DISABLE) {
- regmap_write(gate->map, get_clock_reg(gate), clk);
- } else {
- /* Use set to clear register */
+ /* Clock is clear to enable, so use set to clear register */
regmap_write(gate->map, get_clock_reg(gate) + 0x04, clk);
+ } else {
+ /* Clock is set to enable, so use write to set register */
+ regmap_write(gate->map, get_clock_reg(gate), clk);
}
if (gate->reset_idx >= 0) {
diff --git a/drivers/clk/imx/clk-imx8mm.c b/drivers/clk/imx/clk-imx8mm.c
index 067ab87..172589e 100644
--- a/drivers/clk/imx/clk-imx8mm.c
+++ b/drivers/clk/imx/clk-imx8mm.c
@@ -638,7 +638,7 @@ static int imx8mm_clocks_probe(struct platform_device *pdev)
clks[IMX8MM_CLK_A53_DIV],
clks[IMX8MM_CLK_A53_SRC],
clks[IMX8MM_ARM_PLL_OUT],
- clks[IMX8MM_CLK_24M]);
+ clks[IMX8MM_SYS_PLL1_800M]);
imx_check_clocks(clks, ARRAY_SIZE(clks));
diff --git a/drivers/clk/imx/clk-imx8mn.c b/drivers/clk/imx/clk-imx8mn.c
index 47a4b44..58b5ace 100644
--- a/drivers/clk/imx/clk-imx8mn.c
+++ b/drivers/clk/imx/clk-imx8mn.c
@@ -610,7 +610,7 @@ static int imx8mn_clocks_probe(struct platform_device *pdev)
clks[IMX8MN_CLK_A53_DIV],
clks[IMX8MN_CLK_A53_SRC],
clks[IMX8MN_ARM_PLL_OUT],
- clks[IMX8MN_CLK_24M]);
+ clks[IMX8MN_SYS_PLL1_800M]);
imx_check_clocks(clks, ARRAY_SIZE(clks));
diff --git a/drivers/clk/meson/g12a.c b/drivers/clk/meson/g12a.c
index ea4c791..b3af61c 100644
--- a/drivers/clk/meson/g12a.c
+++ b/drivers/clk/meson/g12a.c
@@ -343,6 +343,7 @@ static struct clk_regmap g12a_cpu_clk_premux0 = {
.offset = HHI_SYS_CPU_CLK_CNTL0,
.mask = 0x3,
.shift = 0,
+ .flags = CLK_MUX_ROUND_CLOSEST,
},
.hw.init = &(struct clk_init_data){
.name = "cpu_clk_dyn0_sel",
@@ -353,8 +354,7 @@ static struct clk_regmap g12a_cpu_clk_premux0 = {
{ .hw = &g12a_fclk_div3.hw },
},
.num_parents = 3,
- /* This sub-tree is used a parking clock */
- .flags = CLK_SET_RATE_NO_REPARENT,
+ .flags = CLK_SET_RATE_PARENT,
},
};
@@ -410,6 +410,7 @@ static struct clk_regmap g12a_cpu_clk_postmux0 = {
.offset = HHI_SYS_CPU_CLK_CNTL0,
.mask = 0x1,
.shift = 2,
+ .flags = CLK_MUX_ROUND_CLOSEST,
},
.hw.init = &(struct clk_init_data){
.name = "cpu_clk_dyn0",
@@ -466,6 +467,7 @@ static struct clk_regmap g12a_cpu_clk_dyn = {
.offset = HHI_SYS_CPU_CLK_CNTL0,
.mask = 0x1,
.shift = 10,
+ .flags = CLK_MUX_ROUND_CLOSEST,
},
.hw.init = &(struct clk_init_data){
.name = "cpu_clk_dyn",
@@ -485,6 +487,7 @@ static struct clk_regmap g12a_cpu_clk = {
.offset = HHI_SYS_CPU_CLK_CNTL0,
.mask = 0x1,
.shift = 11,
+ .flags = CLK_MUX_ROUND_CLOSEST,
},
.hw.init = &(struct clk_init_data){
.name = "cpu_clk",
@@ -504,6 +507,7 @@ static struct clk_regmap g12b_cpu_clk = {
.offset = HHI_SYS_CPU_CLK_CNTL0,
.mask = 0x1,
.shift = 11,
+ .flags = CLK_MUX_ROUND_CLOSEST,
},
.hw.init = &(struct clk_init_data){
.name = "cpu_clk",
@@ -523,6 +527,7 @@ static struct clk_regmap g12b_cpub_clk_premux0 = {
.offset = HHI_SYS_CPUB_CLK_CNTL,
.mask = 0x3,
.shift = 0,
+ .flags = CLK_MUX_ROUND_CLOSEST,
},
.hw.init = &(struct clk_init_data){
.name = "cpub_clk_dyn0_sel",
@@ -533,6 +538,7 @@ static struct clk_regmap g12b_cpub_clk_premux0 = {
{ .hw = &g12a_fclk_div3.hw },
},
.num_parents = 3,
+ .flags = CLK_SET_RATE_PARENT,
},
};
@@ -567,6 +573,7 @@ static struct clk_regmap g12b_cpub_clk_postmux0 = {
.offset = HHI_SYS_CPUB_CLK_CNTL,
.mask = 0x1,
.shift = 2,
+ .flags = CLK_MUX_ROUND_CLOSEST,
},
.hw.init = &(struct clk_init_data){
.name = "cpub_clk_dyn0",
@@ -644,6 +651,7 @@ static struct clk_regmap g12b_cpub_clk_dyn = {
.offset = HHI_SYS_CPUB_CLK_CNTL,
.mask = 0x1,
.shift = 10,
+ .flags = CLK_MUX_ROUND_CLOSEST,
},
.hw.init = &(struct clk_init_data){
.name = "cpub_clk_dyn",
@@ -663,6 +671,7 @@ static struct clk_regmap g12b_cpub_clk = {
.offset = HHI_SYS_CPUB_CLK_CNTL,
.mask = 0x1,
.shift = 11,
+ .flags = CLK_MUX_ROUND_CLOSEST,
},
.hw.init = &(struct clk_init_data){
.name = "cpub_clk",
diff --git a/drivers/clk/meson/gxbb.c b/drivers/clk/meson/gxbb.c
index 7cfb998..1f9c056 100644
--- a/drivers/clk/meson/gxbb.c
+++ b/drivers/clk/meson/gxbb.c
@@ -935,6 +935,7 @@ static struct clk_regmap gxbb_sar_adc_clk_div = {
&gxbb_sar_adc_clk_sel.hw
},
.num_parents = 1,
+ .flags = CLK_SET_RATE_PARENT,
},
};
diff --git a/drivers/clk/samsung/clk-exynos5420.c b/drivers/clk/samsung/clk-exynos5420.c
index 7670cc5..31466cd 100644
--- a/drivers/clk/samsung/clk-exynos5420.c
+++ b/drivers/clk/samsung/clk-exynos5420.c
@@ -165,12 +165,18 @@ static const unsigned long exynos5x_clk_regs[] __initconst = {
GATE_BUS_CPU,
GATE_SCLK_CPU,
CLKOUT_CMU_CPU,
+ CPLL_CON0,
+ DPLL_CON0,
EPLL_CON0,
EPLL_CON1,
EPLL_CON2,
RPLL_CON0,
RPLL_CON1,
RPLL_CON2,
+ IPLL_CON0,
+ SPLL_CON0,
+ VPLL_CON0,
+ MPLL_CON0,
SRC_TOP0,
SRC_TOP1,
SRC_TOP2,
@@ -1172,8 +1178,6 @@ static const struct samsung_gate_clock exynos5x_gate_clks[] __initconst = {
GATE(CLK_SCLK_ISP_SENSOR2, "sclk_isp_sensor2", "dout_isp_sensor2",
GATE_TOP_SCLK_ISP, 12, CLK_SET_RATE_PARENT, 0),
- GATE(CLK_G3D, "g3d", "mout_user_aclk_g3d", GATE_IP_G3D, 9, 0, 0),
-
/* CDREX */
GATE(CLK_CLKM_PHY0, "clkm_phy0", "dout_sclk_cdrex",
GATE_BUS_CDREX0, 0, 0, 0),
@@ -1248,6 +1252,15 @@ static struct exynos5_subcmu_reg_dump exynos5x_gsc_suspend_regs[] = {
{ DIV2_RATIO0, 0, 0x30 }, /* DIV dout_gscl_blk_300 */
};
+static const struct samsung_gate_clock exynos5x_g3d_gate_clks[] __initconst = {
+ GATE(CLK_G3D, "g3d", "mout_user_aclk_g3d", GATE_IP_G3D, 9, 0, 0),
+};
+
+static struct exynos5_subcmu_reg_dump exynos5x_g3d_suspend_regs[] = {
+ { GATE_IP_G3D, 0x3ff, 0x3ff }, /* G3D gates */
+ { SRC_TOP5, 0, BIT(16) }, /* MUX mout_user_aclk_g3d */
+};
+
static const struct samsung_div_clock exynos5x_mfc_div_clks[] __initconst = {
DIV(0, "dout_mfc_blk", "mout_user_aclk333", DIV4_RATIO, 0, 2),
};
@@ -1320,6 +1333,14 @@ static const struct exynos5_subcmu_info exynos5x_gsc_subcmu = {
.pd_name = "GSC",
};
+static const struct exynos5_subcmu_info exynos5x_g3d_subcmu = {
+ .gate_clks = exynos5x_g3d_gate_clks,
+ .nr_gate_clks = ARRAY_SIZE(exynos5x_g3d_gate_clks),
+ .suspend_regs = exynos5x_g3d_suspend_regs,
+ .nr_suspend_regs = ARRAY_SIZE(exynos5x_g3d_suspend_regs),
+ .pd_name = "G3D",
+};
+
static const struct exynos5_subcmu_info exynos5x_mfc_subcmu = {
.div_clks = exynos5x_mfc_div_clks,
.nr_div_clks = ARRAY_SIZE(exynos5x_mfc_div_clks),
@@ -1351,6 +1372,7 @@ static const struct exynos5_subcmu_info exynos5800_mau_subcmu = {
static const struct exynos5_subcmu_info *exynos5x_subcmus[] = {
&exynos5x_disp_subcmu,
&exynos5x_gsc_subcmu,
+ &exynos5x_g3d_subcmu,
&exynos5x_mfc_subcmu,
&exynos5x_mscl_subcmu,
};
@@ -1358,6 +1380,7 @@ static const struct exynos5_subcmu_info *exynos5x_subcmus[] = {
static const struct exynos5_subcmu_info *exynos5800_subcmus[] = {
&exynos5x_disp_subcmu,
&exynos5x_gsc_subcmu,
+ &exynos5x_g3d_subcmu,
&exynos5x_mfc_subcmu,
&exynos5x_mscl_subcmu,
&exynos5800_mau_subcmu,
diff --git a/drivers/clk/samsung/clk-exynos5433.c b/drivers/clk/samsung/clk-exynos5433.c
index 7824c2b..4b1aa93 100644
--- a/drivers/clk/samsung/clk-exynos5433.c
+++ b/drivers/clk/samsung/clk-exynos5433.c
@@ -13,6 +13,7 @@
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
+#include <linux/slab.h>
#include <dt-bindings/clock/exynos5433.h>
@@ -5584,6 +5585,8 @@ static int __init exynos5433_cmu_probe(struct platform_device *pdev)
data->clk_save = samsung_clk_alloc_reg_dump(info->clk_regs,
info->nr_clk_regs);
+ if (!data->clk_save)
+ return -ENOMEM;
data->nr_clk_save = info->nr_clk_regs;
data->clk_suspend = info->suspend_regs;
data->nr_clk_suspend = info->nr_suspend_regs;
@@ -5592,12 +5595,19 @@ static int __init exynos5433_cmu_probe(struct platform_device *pdev)
if (data->nr_pclks > 0) {
data->pclks = devm_kcalloc(dev, sizeof(struct clk *),
data->nr_pclks, GFP_KERNEL);
-
+ if (!data->pclks) {
+ kfree(data->clk_save);
+ return -ENOMEM;
+ }
for (i = 0; i < data->nr_pclks; i++) {
struct clk *clk = of_clk_get(dev->of_node, i);
- if (IS_ERR(clk))
+ if (IS_ERR(clk)) {
+ kfree(data->clk_save);
+ while (--i >= 0)
+ clk_put(data->pclks[i]);
return PTR_ERR(clk);
+ }
data->pclks[i] = clk;
}
}
diff --git a/drivers/clk/sunxi-ng/ccu-sun9i-a80.c b/drivers/clk/sunxi-ng/ccu-sun9i-a80.c
index dcac139..ef29582 100644
--- a/drivers/clk/sunxi-ng/ccu-sun9i-a80.c
+++ b/drivers/clk/sunxi-ng/ccu-sun9i-a80.c
@@ -1224,7 +1224,7 @@ static int sun9i_a80_ccu_probe(struct platform_device *pdev)
/* Enforce d1 = 0, d2 = 0 for Audio PLL */
val = readl(reg + SUN9I_A80_PLL_AUDIO_REG);
- val &= (BIT(16) & BIT(18));
+ val &= ~(BIT(16) | BIT(18));
writel(val, reg + SUN9I_A80_PLL_AUDIO_REG);
/* Enforce P = 1 for both CPU cluster PLLs */
diff --git a/drivers/clk/sunxi/clk-sunxi.c b/drivers/clk/sunxi/clk-sunxi.c
index d3a4338..27201fd 100644
--- a/drivers/clk/sunxi/clk-sunxi.c
+++ b/drivers/clk/sunxi/clk-sunxi.c
@@ -1080,8 +1080,8 @@ static struct clk ** __init sunxi_divs_clk_setup(struct device_node *node,
rate_hw, rate_ops,
gate_hw, &clk_gate_ops,
clkflags |
- data->div[i].critical ?
- CLK_IS_CRITICAL : 0);
+ (data->div[i].critical ?
+ CLK_IS_CRITICAL : 0));
WARN_ON(IS_ERR(clk_data->clks[i]));
}
diff --git a/drivers/clk/ti/clk-dra7-atl.c b/drivers/clk/ti/clk-dra7-atl.c
index a01ca93..f65e16c 100644
--- a/drivers/clk/ti/clk-dra7-atl.c
+++ b/drivers/clk/ti/clk-dra7-atl.c
@@ -174,7 +174,6 @@ static void __init of_dra7_atl_clock_setup(struct device_node *node)
struct clk_init_data init = { NULL };
const char **parent_names = NULL;
struct clk *clk;
- int ret;
clk_hw = kzalloc(sizeof(*clk_hw), GFP_KERNEL);
if (!clk_hw) {
@@ -207,11 +206,6 @@ static void __init of_dra7_atl_clock_setup(struct device_node *node)
clk = ti_clk_register(NULL, &clk_hw->hw, node->name);
if (!IS_ERR(clk)) {
- ret = ti_clk_add_alias(NULL, clk, node->name);
- if (ret) {
- clk_unregister(clk);
- goto cleanup;
- }
of_clk_add_provider(node, of_clk_src_simple_get, clk);
kfree(parent_names);
return;
diff --git a/drivers/clk/ti/clkctrl.c b/drivers/clk/ti/clkctrl.c
index 975995e..b0c0690 100644
--- a/drivers/clk/ti/clkctrl.c
+++ b/drivers/clk/ti/clkctrl.c
@@ -100,11 +100,12 @@ static bool _omap4_is_timeout(union omap4_timeout *time, u32 timeout)
* can be from a timer that requires pm_runtime access, which
* will eventually bring us here with timekeeping_suspended,
* during both suspend entry and resume paths. This happens
- * at least on am43xx platform.
+ * at least on am43xx platform. Account for flakeyness
+ * with udelay() by multiplying the timeout value by 2.
*/
if (unlikely(_early_timeout || timekeeping_suspended)) {
if (time->cycles++ < timeout) {
- udelay(1);
+ udelay(1 * 2);
return false;
}
} else {
diff --git a/drivers/clocksource/sh_mtu2.c b/drivers/clocksource/sh_mtu2.c
index 354b27d..62812f8 100644
--- a/drivers/clocksource/sh_mtu2.c
+++ b/drivers/clocksource/sh_mtu2.c
@@ -328,12 +328,13 @@ static int sh_mtu2_register(struct sh_mtu2_channel *ch, const char *name)
return 0;
}
+static const unsigned int sh_mtu2_channel_offsets[] = {
+ 0x300, 0x380, 0x000,
+};
+
static int sh_mtu2_setup_channel(struct sh_mtu2_channel *ch, unsigned int index,
struct sh_mtu2_device *mtu)
{
- static const unsigned int channel_offsets[] = {
- 0x300, 0x380, 0x000,
- };
char name[6];
int irq;
int ret;
@@ -356,7 +357,7 @@ static int sh_mtu2_setup_channel(struct sh_mtu2_channel *ch, unsigned int index,
return ret;
}
- ch->base = mtu->mapbase + channel_offsets[index];
+ ch->base = mtu->mapbase + sh_mtu2_channel_offsets[index];
ch->index = index;
return sh_mtu2_register(ch, dev_name(&mtu->pdev->dev));
@@ -408,7 +409,12 @@ static int sh_mtu2_setup(struct sh_mtu2_device *mtu,
}
/* Allocate and setup the channels. */
- mtu->num_channels = 3;
+ ret = platform_irq_count(pdev);
+ if (ret < 0)
+ goto err_unmap;
+
+ mtu->num_channels = min_t(unsigned int, ret,
+ ARRAY_SIZE(sh_mtu2_channel_offsets));
mtu->channels = kcalloc(mtu->num_channels, sizeof(*mtu->channels),
GFP_KERNEL);
diff --git a/drivers/clocksource/timer-mediatek.c b/drivers/clocksource/timer-mediatek.c
index a562f49..9318edc 100644
--- a/drivers/clocksource/timer-mediatek.c
+++ b/drivers/clocksource/timer-mediatek.c
@@ -268,15 +268,12 @@ static int __init mtk_syst_init(struct device_node *node)
ret = timer_of_init(node, &to);
if (ret)
- goto err;
+ return ret;
clockevents_config_and_register(&to.clkevt, timer_of_rate(&to),
TIMER_SYNC_TICKS, 0xffffffff);
return 0;
-err:
- timer_of_cleanup(&to);
- return ret;
}
static int __init mtk_gpt_init(struct device_node *node)
@@ -293,7 +290,7 @@ static int __init mtk_gpt_init(struct device_node *node)
ret = timer_of_init(node, &to);
if (ret)
- goto err;
+ return ret;
/* Configure clock source */
mtk_gpt_setup(&to, TIMER_CLK_SRC, GPT_CTRL_OP_FREERUN);
@@ -311,9 +308,6 @@ static int __init mtk_gpt_init(struct device_node *node)
mtk_gpt_enable_irq(&to, TIMER_CLK_EVT);
return 0;
-err:
- timer_of_cleanup(&to);
- return ret;
}
TIMER_OF_DECLARE(mtk_mt6577, "mediatek,mt6577-timer", mtk_gpt_init);
TIMER_OF_DECLARE(mtk_mt6765, "mediatek,mt6765-timer", mtk_syst_init);
diff --git a/drivers/cpufreq/Kconfig.arm b/drivers/cpufreq/Kconfig.arm
index a905796..3858d86 100644
--- a/drivers/cpufreq/Kconfig.arm
+++ b/drivers/cpufreq/Kconfig.arm
@@ -49,14 +49,6 @@
If in doubt, say N.
-# big LITTLE core layer and glue drivers
-config ARM_BIG_LITTLE_CPUFREQ
- tristate "Generic ARM big LITTLE CPUfreq driver"
- depends on ARM_CPU_TOPOLOGY && HAVE_CLK
- select PM_OPP
- help
- This enables the Generic CPUfreq driver for ARM big.LITTLE platforms.
-
config ARM_SCPI_CPUFREQ
tristate "SCPI based CPUfreq driver"
depends on ARM_SCPI_PROTOCOL && COMMON_CLK_SCPI
@@ -69,7 +61,9 @@
config ARM_VEXPRESS_SPC_CPUFREQ
tristate "Versatile Express SPC based CPUfreq driver"
- depends on ARM_BIG_LITTLE_CPUFREQ && ARCH_VEXPRESS_SPC
+ depends on ARM_CPU_TOPOLOGY && HAVE_CLK
+ depends on ARCH_VEXPRESS_SPC
+ select PM_OPP
help
This add the CPUfreq driver support for Versatile Express
big.LITTLE platforms using SPC for power management.
diff --git a/drivers/cpufreq/Makefile b/drivers/cpufreq/Makefile
index 9a9f5cc..f6670c4 100644
--- a/drivers/cpufreq/Makefile
+++ b/drivers/cpufreq/Makefile
@@ -47,8 +47,6 @@
##################################################################################
# ARM SoC drivers
-obj-$(CONFIG_ARM_BIG_LITTLE_CPUFREQ) += arm_big_little.o
-
obj-$(CONFIG_ARM_ARMADA_37XX_CPUFREQ) += armada-37xx-cpufreq.o
obj-$(CONFIG_ARM_ARMADA_8K_CPUFREQ) += armada-8k-cpufreq.o
obj-$(CONFIG_ARM_BRCMSTB_AVS_CPUFREQ) += brcmstb-avs-cpufreq.o
diff --git a/drivers/cpufreq/arm_big_little.c b/drivers/cpufreq/arm_big_little.c
deleted file mode 100644
index 7fe52fc..0000000
--- a/drivers/cpufreq/arm_big_little.c
+++ /dev/null
@@ -1,658 +0,0 @@
-/*
- * ARM big.LITTLE Platforms CPUFreq support
- *
- * Copyright (C) 2013 ARM Ltd.
- * Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com>
- *
- * Copyright (C) 2013 Linaro.
- * Viresh Kumar <viresh.kumar@linaro.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed "as is" WITHOUT ANY WARRANTY of any
- * kind, whether express or implied; without even the implied warranty
- * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/clk.h>
-#include <linux/cpu.h>
-#include <linux/cpufreq.h>
-#include <linux/cpumask.h>
-#include <linux/cpu_cooling.h>
-#include <linux/export.h>
-#include <linux/module.h>
-#include <linux/mutex.h>
-#include <linux/of_platform.h>
-#include <linux/pm_opp.h>
-#include <linux/slab.h>
-#include <linux/topology.h>
-#include <linux/types.h>
-
-#include "arm_big_little.h"
-
-/* Currently we support only two clusters */
-#define A15_CLUSTER 0
-#define A7_CLUSTER 1
-#define MAX_CLUSTERS 2
-
-#ifdef CONFIG_BL_SWITCHER
-#include <asm/bL_switcher.h>
-static bool bL_switching_enabled;
-#define is_bL_switching_enabled() bL_switching_enabled
-#define set_switching_enabled(x) (bL_switching_enabled = (x))
-#else
-#define is_bL_switching_enabled() false
-#define set_switching_enabled(x) do { } while (0)
-#define bL_switch_request(...) do { } while (0)
-#define bL_switcher_put_enabled() do { } while (0)
-#define bL_switcher_get_enabled() do { } while (0)
-#endif
-
-#define ACTUAL_FREQ(cluster, freq) ((cluster == A7_CLUSTER) ? freq << 1 : freq)
-#define VIRT_FREQ(cluster, freq) ((cluster == A7_CLUSTER) ? freq >> 1 : freq)
-
-static struct thermal_cooling_device *cdev[MAX_CLUSTERS];
-static const struct cpufreq_arm_bL_ops *arm_bL_ops;
-static struct clk *clk[MAX_CLUSTERS];
-static struct cpufreq_frequency_table *freq_table[MAX_CLUSTERS + 1];
-static atomic_t cluster_usage[MAX_CLUSTERS + 1];
-
-static unsigned int clk_big_min; /* (Big) clock frequencies */
-static unsigned int clk_little_max; /* Maximum clock frequency (Little) */
-
-static DEFINE_PER_CPU(unsigned int, physical_cluster);
-static DEFINE_PER_CPU(unsigned int, cpu_last_req_freq);
-
-static struct mutex cluster_lock[MAX_CLUSTERS];
-
-static inline int raw_cpu_to_cluster(int cpu)
-{
- return topology_physical_package_id(cpu);
-}
-
-static inline int cpu_to_cluster(int cpu)
-{
- return is_bL_switching_enabled() ?
- MAX_CLUSTERS : raw_cpu_to_cluster(cpu);
-}
-
-static unsigned int find_cluster_maxfreq(int cluster)
-{
- int j;
- u32 max_freq = 0, cpu_freq;
-
- for_each_online_cpu(j) {
- cpu_freq = per_cpu(cpu_last_req_freq, j);
-
- if ((cluster == per_cpu(physical_cluster, j)) &&
- (max_freq < cpu_freq))
- max_freq = cpu_freq;
- }
-
- pr_debug("%s: cluster: %d, max freq: %d\n", __func__, cluster,
- max_freq);
-
- return max_freq;
-}
-
-static unsigned int clk_get_cpu_rate(unsigned int cpu)
-{
- u32 cur_cluster = per_cpu(physical_cluster, cpu);
- u32 rate = clk_get_rate(clk[cur_cluster]) / 1000;
-
- /* For switcher we use virtual A7 clock rates */
- if (is_bL_switching_enabled())
- rate = VIRT_FREQ(cur_cluster, rate);
-
- pr_debug("%s: cpu: %d, cluster: %d, freq: %u\n", __func__, cpu,
- cur_cluster, rate);
-
- return rate;
-}
-
-static unsigned int bL_cpufreq_get_rate(unsigned int cpu)
-{
- if (is_bL_switching_enabled()) {
- pr_debug("%s: freq: %d\n", __func__, per_cpu(cpu_last_req_freq,
- cpu));
-
- return per_cpu(cpu_last_req_freq, cpu);
- } else {
- return clk_get_cpu_rate(cpu);
- }
-}
-
-static unsigned int
-bL_cpufreq_set_rate(u32 cpu, u32 old_cluster, u32 new_cluster, u32 rate)
-{
- u32 new_rate, prev_rate;
- int ret;
- bool bLs = is_bL_switching_enabled();
-
- mutex_lock(&cluster_lock[new_cluster]);
-
- if (bLs) {
- prev_rate = per_cpu(cpu_last_req_freq, cpu);
- per_cpu(cpu_last_req_freq, cpu) = rate;
- per_cpu(physical_cluster, cpu) = new_cluster;
-
- new_rate = find_cluster_maxfreq(new_cluster);
- new_rate = ACTUAL_FREQ(new_cluster, new_rate);
- } else {
- new_rate = rate;
- }
-
- pr_debug("%s: cpu: %d, old cluster: %d, new cluster: %d, freq: %d\n",
- __func__, cpu, old_cluster, new_cluster, new_rate);
-
- ret = clk_set_rate(clk[new_cluster], new_rate * 1000);
- if (!ret) {
- /*
- * FIXME: clk_set_rate hasn't returned an error here however it
- * may be that clk_change_rate failed due to hardware or
- * firmware issues and wasn't able to report that due to the
- * current design of the clk core layer. To work around this
- * problem we will read back the clock rate and check it is
- * correct. This needs to be removed once clk core is fixed.
- */
- if (clk_get_rate(clk[new_cluster]) != new_rate * 1000)
- ret = -EIO;
- }
-
- if (WARN_ON(ret)) {
- pr_err("clk_set_rate failed: %d, new cluster: %d\n", ret,
- new_cluster);
- if (bLs) {
- per_cpu(cpu_last_req_freq, cpu) = prev_rate;
- per_cpu(physical_cluster, cpu) = old_cluster;
- }
-
- mutex_unlock(&cluster_lock[new_cluster]);
-
- return ret;
- }
-
- mutex_unlock(&cluster_lock[new_cluster]);
-
- /* Recalc freq for old cluster when switching clusters */
- if (old_cluster != new_cluster) {
- pr_debug("%s: cpu: %d, old cluster: %d, new cluster: %d\n",
- __func__, cpu, old_cluster, new_cluster);
-
- /* Switch cluster */
- bL_switch_request(cpu, new_cluster);
-
- mutex_lock(&cluster_lock[old_cluster]);
-
- /* Set freq of old cluster if there are cpus left on it */
- new_rate = find_cluster_maxfreq(old_cluster);
- new_rate = ACTUAL_FREQ(old_cluster, new_rate);
-
- if (new_rate) {
- pr_debug("%s: Updating rate of old cluster: %d, to freq: %d\n",
- __func__, old_cluster, new_rate);
-
- if (clk_set_rate(clk[old_cluster], new_rate * 1000))
- pr_err("%s: clk_set_rate failed: %d, old cluster: %d\n",
- __func__, ret, old_cluster);
- }
- mutex_unlock(&cluster_lock[old_cluster]);
- }
-
- return 0;
-}
-
-/* Set clock frequency */
-static int bL_cpufreq_set_target(struct cpufreq_policy *policy,
- unsigned int index)
-{
- u32 cpu = policy->cpu, cur_cluster, new_cluster, actual_cluster;
- unsigned int freqs_new;
- int ret;
-
- cur_cluster = cpu_to_cluster(cpu);
- new_cluster = actual_cluster = per_cpu(physical_cluster, cpu);
-
- freqs_new = freq_table[cur_cluster][index].frequency;
-
- if (is_bL_switching_enabled()) {
- if ((actual_cluster == A15_CLUSTER) &&
- (freqs_new < clk_big_min)) {
- new_cluster = A7_CLUSTER;
- } else if ((actual_cluster == A7_CLUSTER) &&
- (freqs_new > clk_little_max)) {
- new_cluster = A15_CLUSTER;
- }
- }
-
- ret = bL_cpufreq_set_rate(cpu, actual_cluster, new_cluster, freqs_new);
-
- if (!ret) {
- arch_set_freq_scale(policy->related_cpus, freqs_new,
- policy->cpuinfo.max_freq);
- }
-
- return ret;
-}
-
-static inline u32 get_table_count(struct cpufreq_frequency_table *table)
-{
- int count;
-
- for (count = 0; table[count].frequency != CPUFREQ_TABLE_END; count++)
- ;
-
- return count;
-}
-
-/* get the minimum frequency in the cpufreq_frequency_table */
-static inline u32 get_table_min(struct cpufreq_frequency_table *table)
-{
- struct cpufreq_frequency_table *pos;
- uint32_t min_freq = ~0;
- cpufreq_for_each_entry(pos, table)
- if (pos->frequency < min_freq)
- min_freq = pos->frequency;
- return min_freq;
-}
-
-/* get the maximum frequency in the cpufreq_frequency_table */
-static inline u32 get_table_max(struct cpufreq_frequency_table *table)
-{
- struct cpufreq_frequency_table *pos;
- uint32_t max_freq = 0;
- cpufreq_for_each_entry(pos, table)
- if (pos->frequency > max_freq)
- max_freq = pos->frequency;
- return max_freq;
-}
-
-static int merge_cluster_tables(void)
-{
- int i, j, k = 0, count = 1;
- struct cpufreq_frequency_table *table;
-
- for (i = 0; i < MAX_CLUSTERS; i++)
- count += get_table_count(freq_table[i]);
-
- table = kcalloc(count, sizeof(*table), GFP_KERNEL);
- if (!table)
- return -ENOMEM;
-
- freq_table[MAX_CLUSTERS] = table;
-
- /* Add in reverse order to get freqs in increasing order */
- for (i = MAX_CLUSTERS - 1; i >= 0; i--) {
- for (j = 0; freq_table[i][j].frequency != CPUFREQ_TABLE_END;
- j++) {
- table[k].frequency = VIRT_FREQ(i,
- freq_table[i][j].frequency);
- pr_debug("%s: index: %d, freq: %d\n", __func__, k,
- table[k].frequency);
- k++;
- }
- }
-
- table[k].driver_data = k;
- table[k].frequency = CPUFREQ_TABLE_END;
-
- pr_debug("%s: End, table: %p, count: %d\n", __func__, table, k);
-
- return 0;
-}
-
-static void _put_cluster_clk_and_freq_table(struct device *cpu_dev,
- const struct cpumask *cpumask)
-{
- u32 cluster = raw_cpu_to_cluster(cpu_dev->id);
-
- if (!freq_table[cluster])
- return;
-
- clk_put(clk[cluster]);
- dev_pm_opp_free_cpufreq_table(cpu_dev, &freq_table[cluster]);
- if (arm_bL_ops->free_opp_table)
- arm_bL_ops->free_opp_table(cpumask);
- dev_dbg(cpu_dev, "%s: cluster: %d\n", __func__, cluster);
-}
-
-static void put_cluster_clk_and_freq_table(struct device *cpu_dev,
- const struct cpumask *cpumask)
-{
- u32 cluster = cpu_to_cluster(cpu_dev->id);
- int i;
-
- if (atomic_dec_return(&cluster_usage[cluster]))
- return;
-
- if (cluster < MAX_CLUSTERS)
- return _put_cluster_clk_and_freq_table(cpu_dev, cpumask);
-
- for_each_present_cpu(i) {
- struct device *cdev = get_cpu_device(i);
- if (!cdev) {
- pr_err("%s: failed to get cpu%d device\n", __func__, i);
- return;
- }
-
- _put_cluster_clk_and_freq_table(cdev, cpumask);
- }
-
- /* free virtual table */
- kfree(freq_table[cluster]);
-}
-
-static int _get_cluster_clk_and_freq_table(struct device *cpu_dev,
- const struct cpumask *cpumask)
-{
- u32 cluster = raw_cpu_to_cluster(cpu_dev->id);
- int ret;
-
- if (freq_table[cluster])
- return 0;
-
- ret = arm_bL_ops->init_opp_table(cpumask);
- if (ret) {
- dev_err(cpu_dev, "%s: init_opp_table failed, cpu: %d, err: %d\n",
- __func__, cpu_dev->id, ret);
- goto out;
- }
-
- ret = dev_pm_opp_init_cpufreq_table(cpu_dev, &freq_table[cluster]);
- if (ret) {
- dev_err(cpu_dev, "%s: failed to init cpufreq table, cpu: %d, err: %d\n",
- __func__, cpu_dev->id, ret);
- goto free_opp_table;
- }
-
- clk[cluster] = clk_get(cpu_dev, NULL);
- if (!IS_ERR(clk[cluster])) {
- dev_dbg(cpu_dev, "%s: clk: %p & freq table: %p, cluster: %d\n",
- __func__, clk[cluster], freq_table[cluster],
- cluster);
- return 0;
- }
-
- dev_err(cpu_dev, "%s: Failed to get clk for cpu: %d, cluster: %d\n",
- __func__, cpu_dev->id, cluster);
- ret = PTR_ERR(clk[cluster]);
- dev_pm_opp_free_cpufreq_table(cpu_dev, &freq_table[cluster]);
-
-free_opp_table:
- if (arm_bL_ops->free_opp_table)
- arm_bL_ops->free_opp_table(cpumask);
-out:
- dev_err(cpu_dev, "%s: Failed to get data for cluster: %d\n", __func__,
- cluster);
- return ret;
-}
-
-static int get_cluster_clk_and_freq_table(struct device *cpu_dev,
- const struct cpumask *cpumask)
-{
- u32 cluster = cpu_to_cluster(cpu_dev->id);
- int i, ret;
-
- if (atomic_inc_return(&cluster_usage[cluster]) != 1)
- return 0;
-
- if (cluster < MAX_CLUSTERS) {
- ret = _get_cluster_clk_and_freq_table(cpu_dev, cpumask);
- if (ret)
- atomic_dec(&cluster_usage[cluster]);
- return ret;
- }
-
- /*
- * Get data for all clusters and fill virtual cluster with a merge of
- * both
- */
- for_each_present_cpu(i) {
- struct device *cdev = get_cpu_device(i);
- if (!cdev) {
- pr_err("%s: failed to get cpu%d device\n", __func__, i);
- return -ENODEV;
- }
-
- ret = _get_cluster_clk_and_freq_table(cdev, cpumask);
- if (ret)
- goto put_clusters;
- }
-
- ret = merge_cluster_tables();
- if (ret)
- goto put_clusters;
-
- /* Assuming 2 cluster, set clk_big_min and clk_little_max */
- clk_big_min = get_table_min(freq_table[0]);
- clk_little_max = VIRT_FREQ(1, get_table_max(freq_table[1]));
-
- pr_debug("%s: cluster: %d, clk_big_min: %d, clk_little_max: %d\n",
- __func__, cluster, clk_big_min, clk_little_max);
-
- return 0;
-
-put_clusters:
- for_each_present_cpu(i) {
- struct device *cdev = get_cpu_device(i);
- if (!cdev) {
- pr_err("%s: failed to get cpu%d device\n", __func__, i);
- return -ENODEV;
- }
-
- _put_cluster_clk_and_freq_table(cdev, cpumask);
- }
-
- atomic_dec(&cluster_usage[cluster]);
-
- return ret;
-}
-
-/* Per-CPU initialization */
-static int bL_cpufreq_init(struct cpufreq_policy *policy)
-{
- u32 cur_cluster = cpu_to_cluster(policy->cpu);
- struct device *cpu_dev;
- int ret;
-
- cpu_dev = get_cpu_device(policy->cpu);
- if (!cpu_dev) {
- pr_err("%s: failed to get cpu%d device\n", __func__,
- policy->cpu);
- return -ENODEV;
- }
-
- if (cur_cluster < MAX_CLUSTERS) {
- int cpu;
-
- cpumask_copy(policy->cpus, topology_core_cpumask(policy->cpu));
-
- for_each_cpu(cpu, policy->cpus)
- per_cpu(physical_cluster, cpu) = cur_cluster;
- } else {
- /* Assumption: during init, we are always running on A15 */
- per_cpu(physical_cluster, policy->cpu) = A15_CLUSTER;
- }
-
- ret = get_cluster_clk_and_freq_table(cpu_dev, policy->cpus);
- if (ret)
- return ret;
-
- policy->freq_table = freq_table[cur_cluster];
- policy->cpuinfo.transition_latency =
- arm_bL_ops->get_transition_latency(cpu_dev);
-
- dev_pm_opp_of_register_em(policy->cpus);
-
- if (is_bL_switching_enabled())
- per_cpu(cpu_last_req_freq, policy->cpu) = clk_get_cpu_rate(policy->cpu);
-
- dev_info(cpu_dev, "%s: CPU %d initialized\n", __func__, policy->cpu);
- return 0;
-}
-
-static int bL_cpufreq_exit(struct cpufreq_policy *policy)
-{
- struct device *cpu_dev;
- int cur_cluster = cpu_to_cluster(policy->cpu);
-
- if (cur_cluster < MAX_CLUSTERS) {
- cpufreq_cooling_unregister(cdev[cur_cluster]);
- cdev[cur_cluster] = NULL;
- }
-
- cpu_dev = get_cpu_device(policy->cpu);
- if (!cpu_dev) {
- pr_err("%s: failed to get cpu%d device\n", __func__,
- policy->cpu);
- return -ENODEV;
- }
-
- put_cluster_clk_and_freq_table(cpu_dev, policy->related_cpus);
- dev_dbg(cpu_dev, "%s: Exited, cpu: %d\n", __func__, policy->cpu);
-
- return 0;
-}
-
-static void bL_cpufreq_ready(struct cpufreq_policy *policy)
-{
- int cur_cluster = cpu_to_cluster(policy->cpu);
-
- /* Do not register a cpu_cooling device if we are in IKS mode */
- if (cur_cluster >= MAX_CLUSTERS)
- return;
-
- cdev[cur_cluster] = of_cpufreq_cooling_register(policy);
-}
-
-static struct cpufreq_driver bL_cpufreq_driver = {
- .name = "arm-big-little",
- .flags = CPUFREQ_STICKY |
- CPUFREQ_HAVE_GOVERNOR_PER_POLICY |
- CPUFREQ_NEED_INITIAL_FREQ_CHECK,
- .verify = cpufreq_generic_frequency_table_verify,
- .target_index = bL_cpufreq_set_target,
- .get = bL_cpufreq_get_rate,
- .init = bL_cpufreq_init,
- .exit = bL_cpufreq_exit,
- .ready = bL_cpufreq_ready,
- .attr = cpufreq_generic_attr,
-};
-
-#ifdef CONFIG_BL_SWITCHER
-static int bL_cpufreq_switcher_notifier(struct notifier_block *nfb,
- unsigned long action, void *_arg)
-{
- pr_debug("%s: action: %ld\n", __func__, action);
-
- switch (action) {
- case BL_NOTIFY_PRE_ENABLE:
- case BL_NOTIFY_PRE_DISABLE:
- cpufreq_unregister_driver(&bL_cpufreq_driver);
- break;
-
- case BL_NOTIFY_POST_ENABLE:
- set_switching_enabled(true);
- cpufreq_register_driver(&bL_cpufreq_driver);
- break;
-
- case BL_NOTIFY_POST_DISABLE:
- set_switching_enabled(false);
- cpufreq_register_driver(&bL_cpufreq_driver);
- break;
-
- default:
- return NOTIFY_DONE;
- }
-
- return NOTIFY_OK;
-}
-
-static struct notifier_block bL_switcher_notifier = {
- .notifier_call = bL_cpufreq_switcher_notifier,
-};
-
-static int __bLs_register_notifier(void)
-{
- return bL_switcher_register_notifier(&bL_switcher_notifier);
-}
-
-static int __bLs_unregister_notifier(void)
-{
- return bL_switcher_unregister_notifier(&bL_switcher_notifier);
-}
-#else
-static int __bLs_register_notifier(void) { return 0; }
-static int __bLs_unregister_notifier(void) { return 0; }
-#endif
-
-int bL_cpufreq_register(const struct cpufreq_arm_bL_ops *ops)
-{
- int ret, i;
-
- if (arm_bL_ops) {
- pr_debug("%s: Already registered: %s, exiting\n", __func__,
- arm_bL_ops->name);
- return -EBUSY;
- }
-
- if (!ops || !strlen(ops->name) || !ops->init_opp_table ||
- !ops->get_transition_latency) {
- pr_err("%s: Invalid arm_bL_ops, exiting\n", __func__);
- return -ENODEV;
- }
-
- arm_bL_ops = ops;
-
- set_switching_enabled(bL_switcher_get_enabled());
-
- for (i = 0; i < MAX_CLUSTERS; i++)
- mutex_init(&cluster_lock[i]);
-
- ret = cpufreq_register_driver(&bL_cpufreq_driver);
- if (ret) {
- pr_info("%s: Failed registering platform driver: %s, err: %d\n",
- __func__, ops->name, ret);
- arm_bL_ops = NULL;
- } else {
- ret = __bLs_register_notifier();
- if (ret) {
- cpufreq_unregister_driver(&bL_cpufreq_driver);
- arm_bL_ops = NULL;
- } else {
- pr_info("%s: Registered platform driver: %s\n",
- __func__, ops->name);
- }
- }
-
- bL_switcher_put_enabled();
- return ret;
-}
-EXPORT_SYMBOL_GPL(bL_cpufreq_register);
-
-void bL_cpufreq_unregister(const struct cpufreq_arm_bL_ops *ops)
-{
- if (arm_bL_ops != ops) {
- pr_err("%s: Registered with: %s, can't unregister, exiting\n",
- __func__, arm_bL_ops->name);
- return;
- }
-
- bL_switcher_get_enabled();
- __bLs_unregister_notifier();
- cpufreq_unregister_driver(&bL_cpufreq_driver);
- bL_switcher_put_enabled();
- pr_info("%s: Un-registered platform driver: %s\n", __func__,
- arm_bL_ops->name);
- arm_bL_ops = NULL;
-}
-EXPORT_SYMBOL_GPL(bL_cpufreq_unregister);
-
-MODULE_AUTHOR("Viresh Kumar <viresh.kumar@linaro.org>");
-MODULE_DESCRIPTION("Generic ARM big LITTLE cpufreq driver");
-MODULE_LICENSE("GPL v2");
diff --git a/drivers/cpufreq/arm_big_little.h b/drivers/cpufreq/arm_big_little.h
deleted file mode 100644
index 88a176e..0000000
--- a/drivers/cpufreq/arm_big_little.h
+++ /dev/null
@@ -1,43 +0,0 @@
-/*
- * ARM big.LITTLE platform's CPUFreq header file
- *
- * Copyright (C) 2013 ARM Ltd.
- * Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com>
- *
- * Copyright (C) 2013 Linaro.
- * Viresh Kumar <viresh.kumar@linaro.org>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed "as is" WITHOUT ANY WARRANTY of any
- * kind, whether express or implied; without even the implied warranty
- * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-#ifndef CPUFREQ_ARM_BIG_LITTLE_H
-#define CPUFREQ_ARM_BIG_LITTLE_H
-
-#include <linux/cpufreq.h>
-#include <linux/device.h>
-#include <linux/types.h>
-
-struct cpufreq_arm_bL_ops {
- char name[CPUFREQ_NAME_LEN];
-
- /*
- * This must set opp table for cpu_dev in a similar way as done by
- * dev_pm_opp_of_add_table().
- */
- int (*init_opp_table)(const struct cpumask *cpumask);
-
- /* Optional */
- int (*get_transition_latency)(struct device *cpu_dev);
- void (*free_opp_table)(const struct cpumask *cpumask);
-};
-
-int bL_cpufreq_register(const struct cpufreq_arm_bL_ops *ops);
-void bL_cpufreq_unregister(const struct cpufreq_arm_bL_ops *ops);
-
-#endif /* CPUFREQ_ARM_BIG_LITTLE_H */
diff --git a/drivers/cpufreq/cpufreq-dt-platdev.c b/drivers/cpufreq/cpufreq-dt-platdev.c
index bca8d1f..54bc767 100644
--- a/drivers/cpufreq/cpufreq-dt-platdev.c
+++ b/drivers/cpufreq/cpufreq-dt-platdev.c
@@ -86,7 +86,6 @@ static const struct of_device_id whitelist[] __initconst = {
{ .compatible = "st-ericsson,u9540", },
{ .compatible = "ti,omap2", },
- { .compatible = "ti,omap3", },
{ .compatible = "ti,omap4", },
{ .compatible = "ti,omap5", },
@@ -137,6 +136,7 @@ static const struct of_device_id blacklist[] __initconst = {
{ .compatible = "ti,am33xx", },
{ .compatible = "ti,am43", },
{ .compatible = "ti,dra7", },
+ { .compatible = "ti,omap3", },
{ }
};
diff --git a/drivers/cpufreq/cpufreq.c b/drivers/cpufreq/cpufreq.c
index 48a224a..7fc1a68 100644
--- a/drivers/cpufreq/cpufreq.c
+++ b/drivers/cpufreq/cpufreq.c
@@ -933,6 +933,9 @@ static ssize_t show(struct kobject *kobj, struct attribute *attr, char *buf)
struct freq_attr *fattr = to_attr(attr);
ssize_t ret;
+ if (!fattr->show)
+ return -EIO;
+
down_read(&policy->rwsem);
ret = fattr->show(policy, buf);
up_read(&policy->rwsem);
@@ -947,6 +950,9 @@ static ssize_t store(struct kobject *kobj, struct attribute *attr,
struct freq_attr *fattr = to_attr(attr);
ssize_t ret = -EINVAL;
+ if (!fattr->store)
+ return -EIO;
+
/*
* cpus_read_trylock() is used here to work around a circular lock
* dependency problem with respect to the cpufreq_register_driver().
@@ -2385,7 +2391,10 @@ int cpufreq_set_policy(struct cpufreq_policy *policy,
new_policy->min = freq_qos_read_value(&policy->constraints, FREQ_QOS_MIN);
new_policy->max = freq_qos_read_value(&policy->constraints, FREQ_QOS_MAX);
- /* verify the cpu speed can be set within this limit */
+ /*
+ * Verify that the CPU speed can be set within these limits and make sure
+ * that min <= max.
+ */
ret = cpufreq_driver->verify(new_policy);
if (ret)
return ret;
@@ -2628,6 +2637,13 @@ int cpufreq_register_driver(struct cpufreq_driver *driver_data)
if (cpufreq_disabled())
return -ENODEV;
+ /*
+ * The cpufreq core depends heavily on the availability of device
+ * structure, make sure they are available before proceeding further.
+ */
+ if (!get_cpu_device(0))
+ return -EPROBE_DEFER;
+
if (!driver_data || !driver_data->verify || !driver_data->init ||
!(driver_data->setpolicy || driver_data->target_index ||
driver_data->target) ||
diff --git a/drivers/cpufreq/imx-cpufreq-dt.c b/drivers/cpufreq/imx-cpufreq-dt.c
index 35db14c..85a6efd 100644
--- a/drivers/cpufreq/imx-cpufreq-dt.c
+++ b/drivers/cpufreq/imx-cpufreq-dt.c
@@ -44,19 +44,19 @@ static int imx_cpufreq_dt_probe(struct platform_device *pdev)
mkt_segment = (cell_value & OCOTP_CFG3_MKT_SEGMENT_MASK) >> OCOTP_CFG3_MKT_SEGMENT_SHIFT;
/*
- * Early samples without fuses written report "0 0" which means
- * consumer segment and minimum speed grading.
- *
- * According to datasheet minimum speed grading is not supported for
- * consumer parts so clamp to 1 to avoid warning for "no OPPs"
+ * Early samples without fuses written report "0 0" which may NOT
+ * match any OPP defined in DT. So clamp to minimum OPP defined in
+ * DT to avoid warning for "no OPPs".
*
* Applies to i.MX8M series SoCs.
*/
- if (mkt_segment == 0 && speed_grade == 0 && (
- of_machine_is_compatible("fsl,imx8mm") ||
- of_machine_is_compatible("fsl,imx8mn") ||
- of_machine_is_compatible("fsl,imx8mq")))
- speed_grade = 1;
+ if (mkt_segment == 0 && speed_grade == 0) {
+ if (of_machine_is_compatible("fsl,imx8mm") ||
+ of_machine_is_compatible("fsl,imx8mq"))
+ speed_grade = 1;
+ if (of_machine_is_compatible("fsl,imx8mn"))
+ speed_grade = 0xb;
+ }
supported_hw[0] = BIT(speed_grade);
supported_hw[1] = BIT(mkt_segment);
diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index 53a51c1..d2fa3e9 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -847,11 +847,9 @@ static void intel_pstate_hwp_force_min_perf(int cpu)
value |= HWP_MAX_PERF(min_perf);
value |= HWP_MIN_PERF(min_perf);
- /* Set EPP/EPB to min */
+ /* Set EPP to min */
if (boot_cpu_has(X86_FEATURE_HWP_EPP))
value |= HWP_ENERGY_PERF_PREFERENCE(HWP_EPP_POWERSAVE);
- else
- intel_pstate_set_epb(cpu, HWP_EPP_BALANCE_POWERSAVE);
wrmsrl_on_cpu(cpu, MSR_HWP_REQUEST, value);
}
@@ -2664,21 +2662,21 @@ enum {
/* Hardware vendor-specific info that has its own power management modes */
static struct acpi_platform_list plat_info[] __initdata = {
- {"HP ", "ProLiant", 0, ACPI_SIG_FADT, all_versions, 0, PSS},
- {"ORACLE", "X4-2 ", 0, ACPI_SIG_FADT, all_versions, 0, PPC},
- {"ORACLE", "X4-2L ", 0, ACPI_SIG_FADT, all_versions, 0, PPC},
- {"ORACLE", "X4-2B ", 0, ACPI_SIG_FADT, all_versions, 0, PPC},
- {"ORACLE", "X3-2 ", 0, ACPI_SIG_FADT, all_versions, 0, PPC},
- {"ORACLE", "X3-2L ", 0, ACPI_SIG_FADT, all_versions, 0, PPC},
- {"ORACLE", "X3-2B ", 0, ACPI_SIG_FADT, all_versions, 0, PPC},
- {"ORACLE", "X4470M2 ", 0, ACPI_SIG_FADT, all_versions, 0, PPC},
- {"ORACLE", "X4270M3 ", 0, ACPI_SIG_FADT, all_versions, 0, PPC},
- {"ORACLE", "X4270M2 ", 0, ACPI_SIG_FADT, all_versions, 0, PPC},
- {"ORACLE", "X4170M2 ", 0, ACPI_SIG_FADT, all_versions, 0, PPC},
- {"ORACLE", "X4170 M3", 0, ACPI_SIG_FADT, all_versions, 0, PPC},
- {"ORACLE", "X4275 M3", 0, ACPI_SIG_FADT, all_versions, 0, PPC},
- {"ORACLE", "X6-2 ", 0, ACPI_SIG_FADT, all_versions, 0, PPC},
- {"ORACLE", "Sudbury ", 0, ACPI_SIG_FADT, all_versions, 0, PPC},
+ {"HP ", "ProLiant", 0, ACPI_SIG_FADT, all_versions, NULL, PSS},
+ {"ORACLE", "X4-2 ", 0, ACPI_SIG_FADT, all_versions, NULL, PPC},
+ {"ORACLE", "X4-2L ", 0, ACPI_SIG_FADT, all_versions, NULL, PPC},
+ {"ORACLE", "X4-2B ", 0, ACPI_SIG_FADT, all_versions, NULL, PPC},
+ {"ORACLE", "X3-2 ", 0, ACPI_SIG_FADT, all_versions, NULL, PPC},
+ {"ORACLE", "X3-2L ", 0, ACPI_SIG_FADT, all_versions, NULL, PPC},
+ {"ORACLE", "X3-2B ", 0, ACPI_SIG_FADT, all_versions, NULL, PPC},
+ {"ORACLE", "X4470M2 ", 0, ACPI_SIG_FADT, all_versions, NULL, PPC},
+ {"ORACLE", "X4270M3 ", 0, ACPI_SIG_FADT, all_versions, NULL, PPC},
+ {"ORACLE", "X4270M2 ", 0, ACPI_SIG_FADT, all_versions, NULL, PPC},
+ {"ORACLE", "X4170M2 ", 0, ACPI_SIG_FADT, all_versions, NULL, PPC},
+ {"ORACLE", "X4170 M3", 0, ACPI_SIG_FADT, all_versions, NULL, PPC},
+ {"ORACLE", "X4275 M3", 0, ACPI_SIG_FADT, all_versions, NULL, PPC},
+ {"ORACLE", "X6-2 ", 0, ACPI_SIG_FADT, all_versions, NULL, PPC},
+ {"ORACLE", "Sudbury ", 0, ACPI_SIG_FADT, all_versions, NULL, PPC},
{ } /* End */
};
diff --git a/drivers/cpufreq/powernv-cpufreq.c b/drivers/cpufreq/powernv-cpufreq.c
index 6061850..56f4bc0 100644
--- a/drivers/cpufreq/powernv-cpufreq.c
+++ b/drivers/cpufreq/powernv-cpufreq.c
@@ -1041,9 +1041,14 @@ static struct cpufreq_driver powernv_cpufreq_driver = {
static int init_chip_info(void)
{
- unsigned int chip[256];
+ unsigned int *chip;
unsigned int cpu, i;
unsigned int prev_chip_id = UINT_MAX;
+ int ret = 0;
+
+ chip = kcalloc(num_possible_cpus(), sizeof(*chip), GFP_KERNEL);
+ if (!chip)
+ return -ENOMEM;
for_each_possible_cpu(cpu) {
unsigned int id = cpu_to_chip_id(cpu);
@@ -1055,8 +1060,10 @@ static int init_chip_info(void)
}
chips = kcalloc(nr_chips, sizeof(struct chip), GFP_KERNEL);
- if (!chips)
- return -ENOMEM;
+ if (!chips) {
+ ret = -ENOMEM;
+ goto free_and_return;
+ }
for (i = 0; i < nr_chips; i++) {
chips[i].id = chip[i];
@@ -1066,7 +1073,9 @@ static int init_chip_info(void)
per_cpu(chip_info, cpu) = &chips[i];
}
- return 0;
+free_and_return:
+ kfree(chip);
+ return ret;
}
static inline void clean_chip_info(void)
diff --git a/drivers/cpufreq/s3c64xx-cpufreq.c b/drivers/cpufreq/s3c64xx-cpufreq.c
index af0c00d..c6bdfc3 100644
--- a/drivers/cpufreq/s3c64xx-cpufreq.c
+++ b/drivers/cpufreq/s3c64xx-cpufreq.c
@@ -19,7 +19,6 @@
static struct regulator *vddarm;
static unsigned long regulator_latency;
-#ifdef CONFIG_CPU_S3C6410
struct s3c64xx_dvfs {
unsigned int vddarm_min;
unsigned int vddarm_max;
@@ -48,7 +47,6 @@ static struct cpufreq_frequency_table s3c64xx_freq_table[] = {
{ 0, 4, 800000 },
{ 0, 0, CPUFREQ_TABLE_END },
};
-#endif
static int s3c64xx_cpufreq_set_target(struct cpufreq_policy *policy,
unsigned int index)
@@ -149,11 +147,6 @@ static int s3c64xx_cpufreq_driver_init(struct cpufreq_policy *policy)
if (policy->cpu != 0)
return -EINVAL;
- if (s3c64xx_freq_table == NULL) {
- pr_err("No frequency information for this CPU\n");
- return -ENODEV;
- }
-
policy->clk = clk_get(NULL, "armclk");
if (IS_ERR(policy->clk)) {
pr_err("Unable to obtain ARMCLK: %ld\n",
diff --git a/drivers/cpufreq/scpi-cpufreq.c b/drivers/cpufreq/scpi-cpufreq.c
index 2b51e07..20d1f85 100644
--- a/drivers/cpufreq/scpi-cpufreq.c
+++ b/drivers/cpufreq/scpi-cpufreq.c
@@ -1,8 +1,6 @@
/*
* System Control and Power Interface (SCPI) based CPUFreq Interface driver
*
- * It provides necessary ops to arm_big_little cpufreq driver.
- *
* Copyright (C) 2015 ARM Ltd.
* Sudeep Holla <sudeep.holla@arm.com>
*
diff --git a/drivers/cpufreq/sun50i-cpufreq-nvmem.c b/drivers/cpufreq/sun50i-cpufreq-nvmem.c
index eca32e4..9907a16 100644
--- a/drivers/cpufreq/sun50i-cpufreq-nvmem.c
+++ b/drivers/cpufreq/sun50i-cpufreq-nvmem.c
@@ -25,7 +25,7 @@
static struct platform_device *cpufreq_dt_pdev, *sun50i_cpufreq_pdev;
/**
- * sun50i_cpufreq_get_efuse() - Parse and return efuse value present on SoC
+ * sun50i_cpufreq_get_efuse() - Determine speed grade from efuse value
* @versions: Set to the value parsed from efuse
*
* Returns 0 if success.
@@ -69,21 +69,16 @@ static int sun50i_cpufreq_get_efuse(u32 *versions)
return PTR_ERR(speedbin);
efuse_value = (*speedbin >> NVMEM_SHIFT) & NVMEM_MASK;
- switch (efuse_value) {
- case 0b0001:
- *versions = 1;
- break;
- case 0b0011:
- *versions = 2;
- break;
- default:
- /*
- * For other situations, we treat it as bin0.
- * This vf table can be run for any good cpu.
- */
+
+ /*
+ * We treat unexpected efuse values as if the SoC was from
+ * the slowest bin. Expected efuse values are 1-3, slowest
+ * to fastest.
+ */
+ if (efuse_value >= 1 && efuse_value <= 3)
+ *versions = efuse_value - 1;
+ else
*versions = 0;
- break;
- }
kfree(speedbin);
return 0;
diff --git a/drivers/cpufreq/ti-cpufreq.c b/drivers/cpufreq/ti-cpufreq.c
index aeaa883..557cb51 100644
--- a/drivers/cpufreq/ti-cpufreq.c
+++ b/drivers/cpufreq/ti-cpufreq.c
@@ -31,11 +31,17 @@
#define DRA7_EFUSE_OD_MPU_OPP BIT(1)
#define DRA7_EFUSE_HIGH_MPU_OPP BIT(2)
+#define OMAP3_CONTROL_DEVICE_STATUS 0x4800244C
+#define OMAP3_CONTROL_IDCODE 0x4830A204
+#define OMAP34xx_ProdID_SKUID 0x4830A20C
+#define OMAP3_SYSCON_BASE (0x48000000 + 0x2000 + 0x270)
+
#define VERSION_COUNT 2
struct ti_cpufreq_data;
struct ti_cpufreq_soc_data {
+ const char * const *reg_names;
unsigned long (*efuse_xlate)(struct ti_cpufreq_data *opp_data,
unsigned long efuse);
unsigned long efuse_fallback;
@@ -85,6 +91,13 @@ static unsigned long dra7_efuse_xlate(struct ti_cpufreq_data *opp_data,
return calculated_efuse;
}
+static unsigned long omap3_efuse_xlate(struct ti_cpufreq_data *opp_data,
+ unsigned long efuse)
+{
+ /* OPP enable bit ("Speed Binned") */
+ return BIT(efuse);
+}
+
static struct ti_cpufreq_soc_data am3x_soc_data = {
.efuse_xlate = amx3_efuse_xlate,
.efuse_fallback = AM33XX_800M_ARM_MPU_MAX_FREQ,
@@ -112,6 +125,74 @@ static struct ti_cpufreq_soc_data dra7_soc_data = {
.multi_regulator = true,
};
+/*
+ * OMAP35x TRM (SPRUF98K):
+ * CONTROL_IDCODE (0x4830 A204) describes Silicon revisions.
+ * Control OMAP Status Register 15:0 (Address 0x4800 244C)
+ * to separate between omap3503, omap3515, omap3525, omap3530
+ * and feature presence.
+ * There are encodings for versions limited to 400/266MHz
+ * but we ignore.
+ * Not clear if this also holds for omap34xx.
+ * some eFuse values e.g. CONTROL_FUSE_OPP1_VDD1
+ * are stored in the SYSCON register range
+ * Register 0x4830A20C [ProdID.SKUID] [0:3]
+ * 0x0 for normal 600/430MHz device.
+ * 0x8 for 720/520MHz device.
+ * Not clear what omap34xx value is.
+ */
+
+static struct ti_cpufreq_soc_data omap34xx_soc_data = {
+ .efuse_xlate = omap3_efuse_xlate,
+ .efuse_offset = OMAP34xx_ProdID_SKUID - OMAP3_SYSCON_BASE,
+ .efuse_shift = 3,
+ .efuse_mask = BIT(3),
+ .rev_offset = OMAP3_CONTROL_IDCODE - OMAP3_SYSCON_BASE,
+ .multi_regulator = false,
+};
+
+/*
+ * AM/DM37x TRM (SPRUGN4M)
+ * CONTROL_IDCODE (0x4830 A204) describes Silicon revisions.
+ * Control Device Status Register 15:0 (Address 0x4800 244C)
+ * to separate between am3703, am3715, dm3725, dm3730
+ * and feature presence.
+ * Speed Binned = Bit 9
+ * 0 800/600 MHz
+ * 1 1000/800 MHz
+ * some eFuse values e.g. CONTROL_FUSE_OPP 1G_VDD1
+ * are stored in the SYSCON register range.
+ * There is no 0x4830A20C [ProdID.SKUID] register (exists but
+ * seems to always read as 0).
+ */
+
+static const char * const omap3_reg_names[] = {"cpu0", "vbb"};
+
+static struct ti_cpufreq_soc_data omap36xx_soc_data = {
+ .reg_names = omap3_reg_names,
+ .efuse_xlate = omap3_efuse_xlate,
+ .efuse_offset = OMAP3_CONTROL_DEVICE_STATUS - OMAP3_SYSCON_BASE,
+ .efuse_shift = 9,
+ .efuse_mask = BIT(9),
+ .rev_offset = OMAP3_CONTROL_IDCODE - OMAP3_SYSCON_BASE,
+ .multi_regulator = true,
+};
+
+/*
+ * AM3517 is quite similar to AM/DM37x except that it has no
+ * high speed grade eFuse and no abb ldo
+ */
+
+static struct ti_cpufreq_soc_data am3517_soc_data = {
+ .efuse_xlate = omap3_efuse_xlate,
+ .efuse_offset = OMAP3_CONTROL_DEVICE_STATUS - OMAP3_SYSCON_BASE,
+ .efuse_shift = 0,
+ .efuse_mask = 0,
+ .rev_offset = OMAP3_CONTROL_IDCODE - OMAP3_SYSCON_BASE,
+ .multi_regulator = false,
+};
+
+
/**
* ti_cpufreq_get_efuse() - Parse and return efuse value present on SoC
* @opp_data: pointer to ti_cpufreq_data context
@@ -128,7 +209,17 @@ static int ti_cpufreq_get_efuse(struct ti_cpufreq_data *opp_data,
ret = regmap_read(opp_data->syscon, opp_data->soc_data->efuse_offset,
&efuse);
- if (ret) {
+ if (ret == -EIO) {
+ /* not a syscon register! */
+ void __iomem *regs = ioremap(OMAP3_SYSCON_BASE +
+ opp_data->soc_data->efuse_offset, 4);
+
+ if (!regs)
+ return -ENOMEM;
+ efuse = readl(regs);
+ iounmap(regs);
+ }
+ else if (ret) {
dev_err(dev,
"Failed to read the efuse value from syscon: %d\n",
ret);
@@ -159,7 +250,17 @@ static int ti_cpufreq_get_rev(struct ti_cpufreq_data *opp_data,
ret = regmap_read(opp_data->syscon, opp_data->soc_data->rev_offset,
&revision);
- if (ret) {
+ if (ret == -EIO) {
+ /* not a syscon register! */
+ void __iomem *regs = ioremap(OMAP3_SYSCON_BASE +
+ opp_data->soc_data->rev_offset, 4);
+
+ if (!regs)
+ return -ENOMEM;
+ revision = readl(regs);
+ iounmap(regs);
+ }
+ else if (ret) {
dev_err(dev,
"Failed to read the revision number from syscon: %d\n",
ret);
@@ -189,8 +290,14 @@ static int ti_cpufreq_setup_syscon_register(struct ti_cpufreq_data *opp_data)
static const struct of_device_id ti_cpufreq_of_match[] = {
{ .compatible = "ti,am33xx", .data = &am3x_soc_data, },
+ { .compatible = "ti,am3517", .data = &am3517_soc_data, },
{ .compatible = "ti,am43", .data = &am4x_soc_data, },
{ .compatible = "ti,dra7", .data = &dra7_soc_data },
+ { .compatible = "ti,omap34xx", .data = &omap34xx_soc_data, },
+ { .compatible = "ti,omap36xx", .data = &omap36xx_soc_data, },
+ /* legacy */
+ { .compatible = "ti,omap3430", .data = &omap34xx_soc_data, },
+ { .compatible = "ti,omap3630", .data = &omap36xx_soc_data, },
{},
};
@@ -212,7 +319,7 @@ static int ti_cpufreq_probe(struct platform_device *pdev)
const struct of_device_id *match;
struct opp_table *ti_opp_table;
struct ti_cpufreq_data *opp_data;
- const char * const reg_names[] = {"vdd", "vbb"};
+ const char * const default_reg_names[] = {"vdd", "vbb"};
int ret;
match = dev_get_platdata(&pdev->dev);
@@ -268,9 +375,13 @@ static int ti_cpufreq_probe(struct platform_device *pdev)
opp_data->opp_table = ti_opp_table;
if (opp_data->soc_data->multi_regulator) {
+ const char * const *reg_names = default_reg_names;
+
+ if (opp_data->soc_data->reg_names)
+ reg_names = opp_data->soc_data->reg_names;
ti_opp_table = dev_pm_opp_set_regulators(opp_data->cpu_dev,
reg_names,
- ARRAY_SIZE(reg_names));
+ ARRAY_SIZE(default_reg_names));
if (IS_ERR(ti_opp_table)) {
dev_pm_opp_put_supported_hw(opp_data->opp_table);
ret = PTR_ERR(ti_opp_table);
diff --git a/drivers/cpufreq/vexpress-spc-cpufreq.c b/drivers/cpufreq/vexpress-spc-cpufreq.c
index 5323728..506e3f2 100644
--- a/drivers/cpufreq/vexpress-spc-cpufreq.c
+++ b/drivers/cpufreq/vexpress-spc-cpufreq.c
@@ -1,61 +1,592 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* Versatile Express SPC CPUFreq Interface driver
*
- * It provides necessary ops to arm_big_little cpufreq driver.
+ * Copyright (C) 2013 - 2019 ARM Ltd.
+ * Sudeep Holla <sudeep.holla@arm.com>
*
- * Copyright (C) 2013 ARM Ltd.
- * Sudeep KarkadaNagesha <sudeep.karkadanagesha@arm.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * This program is distributed "as is" WITHOUT ANY WARRANTY of any
- * kind, whether express or implied; without even the implied warranty
- * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
+ * Copyright (C) 2013 Linaro.
+ * Viresh Kumar <viresh.kumar@linaro.org>
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+#include <linux/clk.h>
#include <linux/cpu.h>
#include <linux/cpufreq.h>
+#include <linux/cpumask.h>
+#include <linux/cpu_cooling.h>
+#include <linux/device.h>
#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/of_platform.h>
#include <linux/platform_device.h>
#include <linux/pm_opp.h>
+#include <linux/slab.h>
+#include <linux/topology.h>
#include <linux/types.h>
-#include "arm_big_little.h"
+/* Currently we support only two clusters */
+#define A15_CLUSTER 0
+#define A7_CLUSTER 1
+#define MAX_CLUSTERS 2
-static int ve_spc_init_opp_table(const struct cpumask *cpumask)
+#ifdef CONFIG_BL_SWITCHER
+#include <asm/bL_switcher.h>
+static bool bL_switching_enabled;
+#define is_bL_switching_enabled() bL_switching_enabled
+#define set_switching_enabled(x) (bL_switching_enabled = (x))
+#else
+#define is_bL_switching_enabled() false
+#define set_switching_enabled(x) do { } while (0)
+#define bL_switch_request(...) do { } while (0)
+#define bL_switcher_put_enabled() do { } while (0)
+#define bL_switcher_get_enabled() do { } while (0)
+#endif
+
+#define ACTUAL_FREQ(cluster, freq) ((cluster == A7_CLUSTER) ? freq << 1 : freq)
+#define VIRT_FREQ(cluster, freq) ((cluster == A7_CLUSTER) ? freq >> 1 : freq)
+
+static struct thermal_cooling_device *cdev[MAX_CLUSTERS];
+static struct clk *clk[MAX_CLUSTERS];
+static struct cpufreq_frequency_table *freq_table[MAX_CLUSTERS + 1];
+static atomic_t cluster_usage[MAX_CLUSTERS + 1];
+
+static unsigned int clk_big_min; /* (Big) clock frequencies */
+static unsigned int clk_little_max; /* Maximum clock frequency (Little) */
+
+static DEFINE_PER_CPU(unsigned int, physical_cluster);
+static DEFINE_PER_CPU(unsigned int, cpu_last_req_freq);
+
+static struct mutex cluster_lock[MAX_CLUSTERS];
+
+static inline int raw_cpu_to_cluster(int cpu)
{
- struct device *cpu_dev = get_cpu_device(cpumask_first(cpumask));
+ return topology_physical_package_id(cpu);
+}
+
+static inline int cpu_to_cluster(int cpu)
+{
+ return is_bL_switching_enabled() ?
+ MAX_CLUSTERS : raw_cpu_to_cluster(cpu);
+}
+
+static unsigned int find_cluster_maxfreq(int cluster)
+{
+ int j;
+ u32 max_freq = 0, cpu_freq;
+
+ for_each_online_cpu(j) {
+ cpu_freq = per_cpu(cpu_last_req_freq, j);
+
+ if (cluster == per_cpu(physical_cluster, j) &&
+ max_freq < cpu_freq)
+ max_freq = cpu_freq;
+ }
+
+ return max_freq;
+}
+
+static unsigned int clk_get_cpu_rate(unsigned int cpu)
+{
+ u32 cur_cluster = per_cpu(physical_cluster, cpu);
+ u32 rate = clk_get_rate(clk[cur_cluster]) / 1000;
+
+ /* For switcher we use virtual A7 clock rates */
+ if (is_bL_switching_enabled())
+ rate = VIRT_FREQ(cur_cluster, rate);
+
+ return rate;
+}
+
+static unsigned int ve_spc_cpufreq_get_rate(unsigned int cpu)
+{
+ if (is_bL_switching_enabled())
+ return per_cpu(cpu_last_req_freq, cpu);
+ else
+ return clk_get_cpu_rate(cpu);
+}
+
+static unsigned int
+ve_spc_cpufreq_set_rate(u32 cpu, u32 old_cluster, u32 new_cluster, u32 rate)
+{
+ u32 new_rate, prev_rate;
+ int ret;
+ bool bLs = is_bL_switching_enabled();
+
+ mutex_lock(&cluster_lock[new_cluster]);
+
+ if (bLs) {
+ prev_rate = per_cpu(cpu_last_req_freq, cpu);
+ per_cpu(cpu_last_req_freq, cpu) = rate;
+ per_cpu(physical_cluster, cpu) = new_cluster;
+
+ new_rate = find_cluster_maxfreq(new_cluster);
+ new_rate = ACTUAL_FREQ(new_cluster, new_rate);
+ } else {
+ new_rate = rate;
+ }
+
+ ret = clk_set_rate(clk[new_cluster], new_rate * 1000);
+ if (!ret) {
+ /*
+ * FIXME: clk_set_rate hasn't returned an error here however it
+ * may be that clk_change_rate failed due to hardware or
+ * firmware issues and wasn't able to report that due to the
+ * current design of the clk core layer. To work around this
+ * problem we will read back the clock rate and check it is
+ * correct. This needs to be removed once clk core is fixed.
+ */
+ if (clk_get_rate(clk[new_cluster]) != new_rate * 1000)
+ ret = -EIO;
+ }
+
+ if (WARN_ON(ret)) {
+ if (bLs) {
+ per_cpu(cpu_last_req_freq, cpu) = prev_rate;
+ per_cpu(physical_cluster, cpu) = old_cluster;
+ }
+
+ mutex_unlock(&cluster_lock[new_cluster]);
+
+ return ret;
+ }
+
+ mutex_unlock(&cluster_lock[new_cluster]);
+
+ /* Recalc freq for old cluster when switching clusters */
+ if (old_cluster != new_cluster) {
+ /* Switch cluster */
+ bL_switch_request(cpu, new_cluster);
+
+ mutex_lock(&cluster_lock[old_cluster]);
+
+ /* Set freq of old cluster if there are cpus left on it */
+ new_rate = find_cluster_maxfreq(old_cluster);
+ new_rate = ACTUAL_FREQ(old_cluster, new_rate);
+
+ if (new_rate &&
+ clk_set_rate(clk[old_cluster], new_rate * 1000)) {
+ pr_err("%s: clk_set_rate failed: %d, old cluster: %d\n",
+ __func__, ret, old_cluster);
+ }
+ mutex_unlock(&cluster_lock[old_cluster]);
+ }
+
+ return 0;
+}
+
+/* Set clock frequency */
+static int ve_spc_cpufreq_set_target(struct cpufreq_policy *policy,
+ unsigned int index)
+{
+ u32 cpu = policy->cpu, cur_cluster, new_cluster, actual_cluster;
+ unsigned int freqs_new;
+ int ret;
+
+ cur_cluster = cpu_to_cluster(cpu);
+ new_cluster = actual_cluster = per_cpu(physical_cluster, cpu);
+
+ freqs_new = freq_table[cur_cluster][index].frequency;
+
+ if (is_bL_switching_enabled()) {
+ if (actual_cluster == A15_CLUSTER && freqs_new < clk_big_min)
+ new_cluster = A7_CLUSTER;
+ else if (actual_cluster == A7_CLUSTER &&
+ freqs_new > clk_little_max)
+ new_cluster = A15_CLUSTER;
+ }
+
+ ret = ve_spc_cpufreq_set_rate(cpu, actual_cluster, new_cluster,
+ freqs_new);
+
+ if (!ret) {
+ arch_set_freq_scale(policy->related_cpus, freqs_new,
+ policy->cpuinfo.max_freq);
+ }
+
+ return ret;
+}
+
+static inline u32 get_table_count(struct cpufreq_frequency_table *table)
+{
+ int count;
+
+ for (count = 0; table[count].frequency != CPUFREQ_TABLE_END; count++)
+ ;
+
+ return count;
+}
+
+/* get the minimum frequency in the cpufreq_frequency_table */
+static inline u32 get_table_min(struct cpufreq_frequency_table *table)
+{
+ struct cpufreq_frequency_table *pos;
+ u32 min_freq = ~0;
+
+ cpufreq_for_each_entry(pos, table)
+ if (pos->frequency < min_freq)
+ min_freq = pos->frequency;
+ return min_freq;
+}
+
+/* get the maximum frequency in the cpufreq_frequency_table */
+static inline u32 get_table_max(struct cpufreq_frequency_table *table)
+{
+ struct cpufreq_frequency_table *pos;
+ u32 max_freq = 0;
+
+ cpufreq_for_each_entry(pos, table)
+ if (pos->frequency > max_freq)
+ max_freq = pos->frequency;
+ return max_freq;
+}
+
+static bool search_frequency(struct cpufreq_frequency_table *table, int size,
+ unsigned int freq)
+{
+ int count;
+
+ for (count = 0; count < size; count++) {
+ if (table[count].frequency == freq)
+ return true;
+ }
+
+ return false;
+}
+
+static int merge_cluster_tables(void)
+{
+ int i, j, k = 0, count = 1;
+ struct cpufreq_frequency_table *table;
+
+ for (i = 0; i < MAX_CLUSTERS; i++)
+ count += get_table_count(freq_table[i]);
+
+ table = kcalloc(count, sizeof(*table), GFP_KERNEL);
+ if (!table)
+ return -ENOMEM;
+
+ freq_table[MAX_CLUSTERS] = table;
+
+ /* Add in reverse order to get freqs in increasing order */
+ for (i = MAX_CLUSTERS - 1; i >= 0; i--, count = k) {
+ for (j = 0; freq_table[i][j].frequency != CPUFREQ_TABLE_END;
+ j++) {
+ if (i == A15_CLUSTER &&
+ search_frequency(table, count, freq_table[i][j].frequency))
+ continue; /* skip duplicates */
+ table[k++].frequency =
+ VIRT_FREQ(i, freq_table[i][j].frequency);
+ }
+ }
+
+ table[k].driver_data = k;
+ table[k].frequency = CPUFREQ_TABLE_END;
+
+ return 0;
+}
+
+static void _put_cluster_clk_and_freq_table(struct device *cpu_dev,
+ const struct cpumask *cpumask)
+{
+ u32 cluster = raw_cpu_to_cluster(cpu_dev->id);
+
+ if (!freq_table[cluster])
+ return;
+
+ clk_put(clk[cluster]);
+ dev_pm_opp_free_cpufreq_table(cpu_dev, &freq_table[cluster]);
+}
+
+static void put_cluster_clk_and_freq_table(struct device *cpu_dev,
+ const struct cpumask *cpumask)
+{
+ u32 cluster = cpu_to_cluster(cpu_dev->id);
+ int i;
+
+ if (atomic_dec_return(&cluster_usage[cluster]))
+ return;
+
+ if (cluster < MAX_CLUSTERS)
+ return _put_cluster_clk_and_freq_table(cpu_dev, cpumask);
+
+ for_each_present_cpu(i) {
+ struct device *cdev = get_cpu_device(i);
+
+ if (!cdev)
+ return;
+
+ _put_cluster_clk_and_freq_table(cdev, cpumask);
+ }
+
+ /* free virtual table */
+ kfree(freq_table[cluster]);
+}
+
+static int _get_cluster_clk_and_freq_table(struct device *cpu_dev,
+ const struct cpumask *cpumask)
+{
+ u32 cluster = raw_cpu_to_cluster(cpu_dev->id);
+ int ret;
+
+ if (freq_table[cluster])
+ return 0;
+
/*
* platform specific SPC code must initialise the opp table
* so just check if the OPP count is non-zero
*/
- return dev_pm_opp_get_opp_count(cpu_dev) <= 0;
+ ret = dev_pm_opp_get_opp_count(cpu_dev) <= 0;
+ if (ret)
+ goto out;
+
+ ret = dev_pm_opp_init_cpufreq_table(cpu_dev, &freq_table[cluster]);
+ if (ret)
+ goto out;
+
+ clk[cluster] = clk_get(cpu_dev, NULL);
+ if (!IS_ERR(clk[cluster]))
+ return 0;
+
+ dev_err(cpu_dev, "%s: Failed to get clk for cpu: %d, cluster: %d\n",
+ __func__, cpu_dev->id, cluster);
+ ret = PTR_ERR(clk[cluster]);
+ dev_pm_opp_free_cpufreq_table(cpu_dev, &freq_table[cluster]);
+
+out:
+ dev_err(cpu_dev, "%s: Failed to get data for cluster: %d\n", __func__,
+ cluster);
+ return ret;
}
-static int ve_spc_get_transition_latency(struct device *cpu_dev)
+static int get_cluster_clk_and_freq_table(struct device *cpu_dev,
+ const struct cpumask *cpumask)
{
- return 1000000; /* 1 ms */
+ u32 cluster = cpu_to_cluster(cpu_dev->id);
+ int i, ret;
+
+ if (atomic_inc_return(&cluster_usage[cluster]) != 1)
+ return 0;
+
+ if (cluster < MAX_CLUSTERS) {
+ ret = _get_cluster_clk_and_freq_table(cpu_dev, cpumask);
+ if (ret)
+ atomic_dec(&cluster_usage[cluster]);
+ return ret;
+ }
+
+ /*
+ * Get data for all clusters and fill virtual cluster with a merge of
+ * both
+ */
+ for_each_present_cpu(i) {
+ struct device *cdev = get_cpu_device(i);
+
+ if (!cdev)
+ return -ENODEV;
+
+ ret = _get_cluster_clk_and_freq_table(cdev, cpumask);
+ if (ret)
+ goto put_clusters;
+ }
+
+ ret = merge_cluster_tables();
+ if (ret)
+ goto put_clusters;
+
+ /* Assuming 2 cluster, set clk_big_min and clk_little_max */
+ clk_big_min = get_table_min(freq_table[A15_CLUSTER]);
+ clk_little_max = VIRT_FREQ(A7_CLUSTER,
+ get_table_max(freq_table[A7_CLUSTER]));
+
+ return 0;
+
+put_clusters:
+ for_each_present_cpu(i) {
+ struct device *cdev = get_cpu_device(i);
+
+ if (!cdev)
+ return -ENODEV;
+
+ _put_cluster_clk_and_freq_table(cdev, cpumask);
+ }
+
+ atomic_dec(&cluster_usage[cluster]);
+
+ return ret;
}
-static const struct cpufreq_arm_bL_ops ve_spc_cpufreq_ops = {
- .name = "vexpress-spc",
- .get_transition_latency = ve_spc_get_transition_latency,
- .init_opp_table = ve_spc_init_opp_table,
+/* Per-CPU initialization */
+static int ve_spc_cpufreq_init(struct cpufreq_policy *policy)
+{
+ u32 cur_cluster = cpu_to_cluster(policy->cpu);
+ struct device *cpu_dev;
+ int ret;
+
+ cpu_dev = get_cpu_device(policy->cpu);
+ if (!cpu_dev) {
+ pr_err("%s: failed to get cpu%d device\n", __func__,
+ policy->cpu);
+ return -ENODEV;
+ }
+
+ if (cur_cluster < MAX_CLUSTERS) {
+ int cpu;
+
+ cpumask_copy(policy->cpus, topology_core_cpumask(policy->cpu));
+
+ for_each_cpu(cpu, policy->cpus)
+ per_cpu(physical_cluster, cpu) = cur_cluster;
+ } else {
+ /* Assumption: during init, we are always running on A15 */
+ per_cpu(physical_cluster, policy->cpu) = A15_CLUSTER;
+ }
+
+ ret = get_cluster_clk_and_freq_table(cpu_dev, policy->cpus);
+ if (ret)
+ return ret;
+
+ policy->freq_table = freq_table[cur_cluster];
+ policy->cpuinfo.transition_latency = 1000000; /* 1 ms */
+
+ dev_pm_opp_of_register_em(policy->cpus);
+
+ if (is_bL_switching_enabled())
+ per_cpu(cpu_last_req_freq, policy->cpu) =
+ clk_get_cpu_rate(policy->cpu);
+
+ dev_info(cpu_dev, "%s: CPU %d initialized\n", __func__, policy->cpu);
+ return 0;
+}
+
+static int ve_spc_cpufreq_exit(struct cpufreq_policy *policy)
+{
+ struct device *cpu_dev;
+ int cur_cluster = cpu_to_cluster(policy->cpu);
+
+ if (cur_cluster < MAX_CLUSTERS) {
+ cpufreq_cooling_unregister(cdev[cur_cluster]);
+ cdev[cur_cluster] = NULL;
+ }
+
+ cpu_dev = get_cpu_device(policy->cpu);
+ if (!cpu_dev) {
+ pr_err("%s: failed to get cpu%d device\n", __func__,
+ policy->cpu);
+ return -ENODEV;
+ }
+
+ put_cluster_clk_and_freq_table(cpu_dev, policy->related_cpus);
+ return 0;
+}
+
+static void ve_spc_cpufreq_ready(struct cpufreq_policy *policy)
+{
+ int cur_cluster = cpu_to_cluster(policy->cpu);
+
+ /* Do not register a cpu_cooling device if we are in IKS mode */
+ if (cur_cluster >= MAX_CLUSTERS)
+ return;
+
+ cdev[cur_cluster] = of_cpufreq_cooling_register(policy);
+}
+
+static struct cpufreq_driver ve_spc_cpufreq_driver = {
+ .name = "vexpress-spc",
+ .flags = CPUFREQ_STICKY |
+ CPUFREQ_HAVE_GOVERNOR_PER_POLICY |
+ CPUFREQ_NEED_INITIAL_FREQ_CHECK,
+ .verify = cpufreq_generic_frequency_table_verify,
+ .target_index = ve_spc_cpufreq_set_target,
+ .get = ve_spc_cpufreq_get_rate,
+ .init = ve_spc_cpufreq_init,
+ .exit = ve_spc_cpufreq_exit,
+ .ready = ve_spc_cpufreq_ready,
+ .attr = cpufreq_generic_attr,
};
+#ifdef CONFIG_BL_SWITCHER
+static int bL_cpufreq_switcher_notifier(struct notifier_block *nfb,
+ unsigned long action, void *_arg)
+{
+ pr_debug("%s: action: %ld\n", __func__, action);
+
+ switch (action) {
+ case BL_NOTIFY_PRE_ENABLE:
+ case BL_NOTIFY_PRE_DISABLE:
+ cpufreq_unregister_driver(&ve_spc_cpufreq_driver);
+ break;
+
+ case BL_NOTIFY_POST_ENABLE:
+ set_switching_enabled(true);
+ cpufreq_register_driver(&ve_spc_cpufreq_driver);
+ break;
+
+ case BL_NOTIFY_POST_DISABLE:
+ set_switching_enabled(false);
+ cpufreq_register_driver(&ve_spc_cpufreq_driver);
+ break;
+
+ default:
+ return NOTIFY_DONE;
+ }
+
+ return NOTIFY_OK;
+}
+
+static struct notifier_block bL_switcher_notifier = {
+ .notifier_call = bL_cpufreq_switcher_notifier,
+};
+
+static int __bLs_register_notifier(void)
+{
+ return bL_switcher_register_notifier(&bL_switcher_notifier);
+}
+
+static int __bLs_unregister_notifier(void)
+{
+ return bL_switcher_unregister_notifier(&bL_switcher_notifier);
+}
+#else
+static int __bLs_register_notifier(void) { return 0; }
+static int __bLs_unregister_notifier(void) { return 0; }
+#endif
+
static int ve_spc_cpufreq_probe(struct platform_device *pdev)
{
- return bL_cpufreq_register(&ve_spc_cpufreq_ops);
+ int ret, i;
+
+ set_switching_enabled(bL_switcher_get_enabled());
+
+ for (i = 0; i < MAX_CLUSTERS; i++)
+ mutex_init(&cluster_lock[i]);
+
+ ret = cpufreq_register_driver(&ve_spc_cpufreq_driver);
+ if (ret) {
+ pr_info("%s: Failed registering platform driver: %s, err: %d\n",
+ __func__, ve_spc_cpufreq_driver.name, ret);
+ } else {
+ ret = __bLs_register_notifier();
+ if (ret)
+ cpufreq_unregister_driver(&ve_spc_cpufreq_driver);
+ else
+ pr_info("%s: Registered platform driver: %s\n",
+ __func__, ve_spc_cpufreq_driver.name);
+ }
+
+ bL_switcher_put_enabled();
+ return ret;
}
static int ve_spc_cpufreq_remove(struct platform_device *pdev)
{
- bL_cpufreq_unregister(&ve_spc_cpufreq_ops);
+ bL_switcher_get_enabled();
+ __bLs_unregister_notifier();
+ cpufreq_unregister_driver(&ve_spc_cpufreq_driver);
+ bL_switcher_put_enabled();
+ pr_info("%s: Un-registered platform driver: %s\n", __func__,
+ ve_spc_cpufreq_driver.name);
return 0;
}
@@ -68,4 +599,7 @@ static struct platform_driver ve_spc_cpufreq_platdrv = {
};
module_platform_driver(ve_spc_cpufreq_platdrv);
-MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Viresh Kumar <viresh.kumar@linaro.org>");
+MODULE_AUTHOR("Sudeep Holla <sudeep.holla@arm.com>");
+MODULE_DESCRIPTION("Vexpress SPC ARM big LITTLE cpufreq driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/cpuidle/cpuidle-powernv.c b/drivers/cpuidle/cpuidle-powernv.c
index 84b1ebe..1b299e80 100644
--- a/drivers/cpuidle/cpuidle-powernv.c
+++ b/drivers/cpuidle/cpuidle-powernv.c
@@ -56,13 +56,10 @@ static u64 get_snooze_timeout(struct cpuidle_device *dev,
return default_snooze_timeout;
for (i = index + 1; i < drv->state_count; i++) {
- struct cpuidle_state *s = &drv->states[i];
- struct cpuidle_state_usage *su = &dev->states_usage[i];
-
- if (s->disabled || su->disable)
+ if (dev->states_usage[i].disable)
continue;
- return s->target_residency * tb_ticks_per_usec;
+ return drv->states[i].target_residency * tb_ticks_per_usec;
}
return default_snooze_timeout;
diff --git a/drivers/cpuidle/cpuidle.c b/drivers/cpuidle/cpuidle.c
index 0895b98..569dbac 100644
--- a/drivers/cpuidle/cpuidle.c
+++ b/drivers/cpuidle/cpuidle.c
@@ -75,44 +75,45 @@ int cpuidle_play_dead(void)
static int find_deepest_state(struct cpuidle_driver *drv,
struct cpuidle_device *dev,
- unsigned int max_latency,
+ u64 max_latency_ns,
unsigned int forbidden_flags,
bool s2idle)
{
- unsigned int latency_req = 0;
+ u64 latency_req = 0;
int i, ret = 0;
for (i = 1; i < drv->state_count; i++) {
struct cpuidle_state *s = &drv->states[i];
- struct cpuidle_state_usage *su = &dev->states_usage[i];
- if (s->disabled || su->disable || s->exit_latency <= latency_req
- || s->exit_latency > max_latency
- || (s->flags & forbidden_flags)
- || (s2idle && !s->enter_s2idle))
+ if (dev->states_usage[i].disable ||
+ s->exit_latency_ns <= latency_req ||
+ s->exit_latency_ns > max_latency_ns ||
+ (s->flags & forbidden_flags) ||
+ (s2idle && !s->enter_s2idle))
continue;
- latency_req = s->exit_latency;
+ latency_req = s->exit_latency_ns;
ret = i;
}
return ret;
}
/**
- * cpuidle_use_deepest_state - Set/clear governor override flag.
- * @enable: New value of the flag.
+ * cpuidle_use_deepest_state - Set/unset governor override mode.
+ * @latency_limit_ns: Idle state exit latency limit (or no override if 0).
*
- * Set/unset the current CPU to use the deepest idle state (override governors
- * going forward if set).
+ * If @latency_limit_ns is nonzero, set the current CPU to use the deepest idle
+ * state with exit latency within @latency_limit_ns (override governors going
+ * forward), or do not override governors if it is zero.
*/
-void cpuidle_use_deepest_state(bool enable)
+void cpuidle_use_deepest_state(u64 latency_limit_ns)
{
struct cpuidle_device *dev;
preempt_disable();
dev = cpuidle_get_device();
if (dev)
- dev->use_deepest_state = enable;
+ dev->forced_idle_latency_limit_ns = latency_limit_ns;
preempt_enable();
}
@@ -122,9 +123,10 @@ void cpuidle_use_deepest_state(bool enable)
* @dev: cpuidle device for the given CPU.
*/
int cpuidle_find_deepest_state(struct cpuidle_driver *drv,
- struct cpuidle_device *dev)
+ struct cpuidle_device *dev,
+ u64 latency_limit_ns)
{
- return find_deepest_state(drv, dev, UINT_MAX, 0, false);
+ return find_deepest_state(drv, dev, latency_limit_ns, 0, false);
}
#ifdef CONFIG_SUSPEND
@@ -180,7 +182,7 @@ int cpuidle_enter_s2idle(struct cpuidle_driver *drv, struct cpuidle_device *dev)
* that interrupts won't be enabled when it exits and allows the tick to
* be frozen safely.
*/
- index = find_deepest_state(drv, dev, UINT_MAX, 0, true);
+ index = find_deepest_state(drv, dev, U64_MAX, 0, true);
if (index > 0)
enter_s2idle_proper(drv, dev, index);
@@ -209,7 +211,7 @@ int cpuidle_enter_state(struct cpuidle_device *dev, struct cpuidle_driver *drv,
* CPU as a broadcast timer, this call may fail if it is not available.
*/
if (broadcast && tick_broadcast_enter()) {
- index = find_deepest_state(drv, dev, target_state->exit_latency,
+ index = find_deepest_state(drv, dev, target_state->exit_latency_ns,
CPUIDLE_FLAG_TIMER_STOP, false);
if (index < 0) {
default_idle_call();
@@ -247,7 +249,7 @@ int cpuidle_enter_state(struct cpuidle_device *dev, struct cpuidle_driver *drv,
local_irq_enable();
if (entered_state >= 0) {
- s64 diff, delay = drv->states[entered_state].exit_latency;
+ s64 diff, delay = drv->states[entered_state].exit_latency_ns;
int i;
/*
@@ -255,18 +257,15 @@ int cpuidle_enter_state(struct cpuidle_device *dev, struct cpuidle_driver *drv,
* This can be moved to within driver enter routine,
* but that results in multiple copies of same code.
*/
- diff = ktime_us_delta(time_end, time_start);
- if (diff > INT_MAX)
- diff = INT_MAX;
+ diff = ktime_sub(time_end, time_start);
- dev->last_residency = (int)diff;
- dev->states_usage[entered_state].time += dev->last_residency;
+ dev->last_residency_ns = diff;
+ dev->states_usage[entered_state].time_ns += diff;
dev->states_usage[entered_state].usage++;
- if (diff < drv->states[entered_state].target_residency) {
+ if (diff < drv->states[entered_state].target_residency_ns) {
for (i = entered_state - 1; i >= 0; i--) {
- if (drv->states[i].disabled ||
- dev->states_usage[i].disable)
+ if (dev->states_usage[i].disable)
continue;
/* Shallower states are enabled, so update. */
@@ -275,22 +274,21 @@ int cpuidle_enter_state(struct cpuidle_device *dev, struct cpuidle_driver *drv,
}
} else if (diff > delay) {
for (i = entered_state + 1; i < drv->state_count; i++) {
- if (drv->states[i].disabled ||
- dev->states_usage[i].disable)
+ if (dev->states_usage[i].disable)
continue;
/*
* Update if a deeper state would have been a
* better match for the observed idle duration.
*/
- if (diff - delay >= drv->states[i].target_residency)
+ if (diff - delay >= drv->states[i].target_residency_ns)
dev->states_usage[entered_state].below++;
break;
}
}
} else {
- dev->last_residency = 0;
+ dev->last_residency_ns = 0;
}
return entered_state;
@@ -380,10 +378,10 @@ u64 cpuidle_poll_time(struct cpuidle_driver *drv,
limit_ns = TICK_NSEC;
for (i = 1; i < drv->state_count; i++) {
- if (drv->states[i].disabled || dev->states_usage[i].disable)
+ if (dev->states_usage[i].disable)
continue;
- limit_ns = (u64)drv->states[i].target_residency * NSEC_PER_USEC;
+ limit_ns = (u64)drv->states[i].target_residency_ns;
}
dev->poll_limit_ns = limit_ns;
@@ -554,7 +552,7 @@ static void __cpuidle_unregister_device(struct cpuidle_device *dev)
static void __cpuidle_device_init(struct cpuidle_device *dev)
{
memset(dev->states_usage, 0, sizeof(dev->states_usage));
- dev->last_residency = 0;
+ dev->last_residency_ns = 0;
dev->next_hrtimer = 0;
}
@@ -567,12 +565,16 @@ static void __cpuidle_device_init(struct cpuidle_device *dev)
*/
static int __cpuidle_register_device(struct cpuidle_device *dev)
{
- int ret;
struct cpuidle_driver *drv = cpuidle_get_cpu_driver(dev);
+ int i, ret;
if (!try_module_get(drv->owner))
return -EINVAL;
+ for (i = 0; i < drv->state_count; i++)
+ if (drv->states[i].disabled)
+ dev->states_usage[i].disable |= CPUIDLE_STATE_DISABLED_BY_DRIVER;
+
per_cpu(cpuidle_devices, dev->cpu) = dev;
list_add(&dev->device_list, &cpuidle_detected_devices);
diff --git a/drivers/cpuidle/driver.c b/drivers/cpuidle/driver.c
index 80c1a83..c76423a 100644
--- a/drivers/cpuidle/driver.c
+++ b/drivers/cpuidle/driver.c
@@ -62,25 +62,24 @@ static inline void __cpuidle_unset_driver(struct cpuidle_driver *drv)
* __cpuidle_set_driver - set per CPU driver variables for the given driver.
* @drv: a valid pointer to a struct cpuidle_driver
*
- * For each CPU in the driver's cpumask, unset the registered driver per CPU
- * to @drv.
- *
- * Returns 0 on success, -EBUSY if the CPUs have driver(s) already.
+ * Returns 0 on success, -EBUSY if any CPU in the cpumask have a driver
+ * different from drv already.
*/
static inline int __cpuidle_set_driver(struct cpuidle_driver *drv)
{
int cpu;
for_each_cpu(cpu, drv->cpumask) {
+ struct cpuidle_driver *old_drv;
- if (__cpuidle_get_cpu_driver(cpu)) {
- __cpuidle_unset_driver(drv);
+ old_drv = __cpuidle_get_cpu_driver(cpu);
+ if (old_drv && old_drv != drv)
return -EBUSY;
- }
-
- per_cpu(cpuidle_drivers, cpu) = drv;
}
+ for_each_cpu(cpu, drv->cpumask)
+ per_cpu(cpuidle_drivers, cpu) = drv;
+
return 0;
}
@@ -166,16 +165,27 @@ static void __cpuidle_driver_init(struct cpuidle_driver *drv)
if (!drv->cpumask)
drv->cpumask = (struct cpumask *)cpu_possible_mask;
- /*
- * Look for the timer stop flag in the different states, so that we know
- * if the broadcast timer has to be set up. The loop is in the reverse
- * order, because usually one of the deeper states have this flag set.
- */
- for (i = drv->state_count - 1; i >= 0 ; i--) {
- if (drv->states[i].flags & CPUIDLE_FLAG_TIMER_STOP) {
+ for (i = 0; i < drv->state_count; i++) {
+ struct cpuidle_state *s = &drv->states[i];
+
+ /*
+ * Look for the timer stop flag in the different states and if
+ * it is found, indicate that the broadcast timer has to be set
+ * up.
+ */
+ if (s->flags & CPUIDLE_FLAG_TIMER_STOP)
drv->bctimer = 1;
- break;
- }
+
+ /*
+ * The core will use the target residency and exit latency
+ * values in nanoseconds, but allow drivers to provide them in
+ * microseconds too.
+ */
+ if (s->target_residency > 0)
+ s->target_residency_ns = s->target_residency * NSEC_PER_USEC;
+
+ if (s->exit_latency > 0)
+ s->exit_latency_ns = s->exit_latency * NSEC_PER_USEC;
}
}
@@ -379,3 +389,31 @@ void cpuidle_driver_unref(void)
spin_unlock(&cpuidle_driver_lock);
}
+
+/**
+ * cpuidle_driver_state_disabled - Disable or enable an idle state
+ * @drv: cpuidle driver owning the state
+ * @idx: State index
+ * @disable: Whether or not to disable the state
+ */
+void cpuidle_driver_state_disabled(struct cpuidle_driver *drv, int idx,
+ bool disable)
+{
+ unsigned int cpu;
+
+ mutex_lock(&cpuidle_lock);
+
+ for_each_cpu(cpu, drv->cpumask) {
+ struct cpuidle_device *dev = per_cpu(cpuidle_devices, cpu);
+
+ if (!dev)
+ continue;
+
+ if (disable)
+ dev->states_usage[idx].disable |= CPUIDLE_STATE_DISABLED_BY_DRIVER;
+ else
+ dev->states_usage[idx].disable &= ~CPUIDLE_STATE_DISABLED_BY_DRIVER;
+ }
+
+ mutex_unlock(&cpuidle_lock);
+}
diff --git a/drivers/cpuidle/governor.c b/drivers/cpuidle/governor.c
index e9801f2..e48271e 100644
--- a/drivers/cpuidle/governor.c
+++ b/drivers/cpuidle/governor.c
@@ -107,11 +107,14 @@ int cpuidle_register_governor(struct cpuidle_governor *gov)
* cpuidle_governor_latency_req - Compute a latency constraint for CPU
* @cpu: Target CPU
*/
-int cpuidle_governor_latency_req(unsigned int cpu)
+s64 cpuidle_governor_latency_req(unsigned int cpu)
{
int global_req = pm_qos_request(PM_QOS_CPU_DMA_LATENCY);
struct device *device = get_cpu_device(cpu);
int device_req = dev_pm_qos_raw_resume_latency(device);
- return device_req < global_req ? device_req : global_req;
+ if (device_req > global_req)
+ device_req = global_req;
+
+ return (s64)device_req * NSEC_PER_USEC;
}
diff --git a/drivers/cpuidle/governors/haltpoll.c b/drivers/cpuidle/governors/haltpoll.c
index 7a703d2..cb2a96e 100644
--- a/drivers/cpuidle/governors/haltpoll.c
+++ b/drivers/cpuidle/governors/haltpoll.c
@@ -49,7 +49,7 @@ static int haltpoll_select(struct cpuidle_driver *drv,
struct cpuidle_device *dev,
bool *stop_tick)
{
- int latency_req = cpuidle_governor_latency_req(dev->cpu);
+ s64 latency_req = cpuidle_governor_latency_req(dev->cpu);
if (!drv->state_count || latency_req == 0) {
*stop_tick = false;
@@ -75,10 +75,9 @@ static int haltpoll_select(struct cpuidle_driver *drv,
return 0;
}
-static void adjust_poll_limit(struct cpuidle_device *dev, unsigned int block_us)
+static void adjust_poll_limit(struct cpuidle_device *dev, u64 block_ns)
{
unsigned int val;
- u64 block_ns = block_us*NSEC_PER_USEC;
/* Grow cpu_halt_poll_us if
* cpu_halt_poll_us < block_ns < guest_halt_poll_us
@@ -115,7 +114,7 @@ static void haltpoll_reflect(struct cpuidle_device *dev, int index)
dev->last_state_idx = index;
if (index != 0)
- adjust_poll_limit(dev, dev->last_residency);
+ adjust_poll_limit(dev, dev->last_residency_ns);
}
/**
diff --git a/drivers/cpuidle/governors/ladder.c b/drivers/cpuidle/governors/ladder.c
index 428eeb8..8e9058c 100644
--- a/drivers/cpuidle/governors/ladder.c
+++ b/drivers/cpuidle/governors/ladder.c
@@ -27,8 +27,8 @@ struct ladder_device_state {
struct {
u32 promotion_count;
u32 demotion_count;
- u32 promotion_time;
- u32 demotion_time;
+ u64 promotion_time_ns;
+ u64 demotion_time_ns;
} threshold;
struct {
int promotion_count;
@@ -68,9 +68,10 @@ static int ladder_select_state(struct cpuidle_driver *drv,
{
struct ladder_device *ldev = this_cpu_ptr(&ladder_devices);
struct ladder_device_state *last_state;
- int last_residency, last_idx = dev->last_state_idx;
+ int last_idx = dev->last_state_idx;
int first_idx = drv->states[0].flags & CPUIDLE_FLAG_POLLING ? 1 : 0;
- int latency_req = cpuidle_governor_latency_req(dev->cpu);
+ s64 latency_req = cpuidle_governor_latency_req(dev->cpu);
+ s64 last_residency;
/* Special case when user has set very strict latency requirement */
if (unlikely(latency_req == 0)) {
@@ -80,14 +81,13 @@ static int ladder_select_state(struct cpuidle_driver *drv,
last_state = &ldev->states[last_idx];
- last_residency = dev->last_residency - drv->states[last_idx].exit_latency;
+ last_residency = dev->last_residency_ns - drv->states[last_idx].exit_latency_ns;
/* consider promotion */
if (last_idx < drv->state_count - 1 &&
- !drv->states[last_idx + 1].disabled &&
!dev->states_usage[last_idx + 1].disable &&
- last_residency > last_state->threshold.promotion_time &&
- drv->states[last_idx + 1].exit_latency <= latency_req) {
+ last_residency > last_state->threshold.promotion_time_ns &&
+ drv->states[last_idx + 1].exit_latency_ns <= latency_req) {
last_state->stats.promotion_count++;
last_state->stats.demotion_count = 0;
if (last_state->stats.promotion_count >= last_state->threshold.promotion_count) {
@@ -98,13 +98,12 @@ static int ladder_select_state(struct cpuidle_driver *drv,
/* consider demotion */
if (last_idx > first_idx &&
- (drv->states[last_idx].disabled ||
- dev->states_usage[last_idx].disable ||
- drv->states[last_idx].exit_latency > latency_req)) {
+ (dev->states_usage[last_idx].disable ||
+ drv->states[last_idx].exit_latency_ns > latency_req)) {
int i;
for (i = last_idx - 1; i > first_idx; i--) {
- if (drv->states[i].exit_latency <= latency_req)
+ if (drv->states[i].exit_latency_ns <= latency_req)
break;
}
ladder_do_selection(dev, ldev, last_idx, i);
@@ -112,7 +111,7 @@ static int ladder_select_state(struct cpuidle_driver *drv,
}
if (last_idx > first_idx &&
- last_residency < last_state->threshold.demotion_time) {
+ last_residency < last_state->threshold.demotion_time_ns) {
last_state->stats.demotion_count++;
last_state->stats.promotion_count = 0;
if (last_state->stats.demotion_count >= last_state->threshold.demotion_count) {
@@ -152,9 +151,9 @@ static int ladder_enable_device(struct cpuidle_driver *drv,
lstate->threshold.demotion_count = DEMOTION_COUNT;
if (i < drv->state_count - 1)
- lstate->threshold.promotion_time = state->exit_latency;
+ lstate->threshold.promotion_time_ns = state->exit_latency_ns;
if (i > first_idx)
- lstate->threshold.demotion_time = state->exit_latency;
+ lstate->threshold.demotion_time_ns = state->exit_latency_ns;
}
return 0;
diff --git a/drivers/cpuidle/governors/menu.c b/drivers/cpuidle/governors/menu.c
index e5a5d0c..b0a7ad5 100644
--- a/drivers/cpuidle/governors/menu.c
+++ b/drivers/cpuidle/governors/menu.c
@@ -19,22 +19,12 @@
#include <linux/sched/stat.h>
#include <linux/math64.h>
-/*
- * Please note when changing the tuning values:
- * If (MAX_INTERESTING-1) * RESOLUTION > UINT_MAX, the result of
- * a scaling operation multiplication may overflow on 32 bit platforms.
- * In that case, #define RESOLUTION as ULL to get 64 bit result:
- * #define RESOLUTION 1024ULL
- *
- * The default values do not overflow.
- */
#define BUCKETS 12
#define INTERVAL_SHIFT 3
#define INTERVALS (1UL << INTERVAL_SHIFT)
#define RESOLUTION 1024
#define DECAY 8
-#define MAX_INTERESTING 50000
-
+#define MAX_INTERESTING (50000 * NSEC_PER_USEC)
/*
* Concepts and ideas behind the menu governor
@@ -120,14 +110,14 @@ struct menu_device {
int needs_update;
int tick_wakeup;
- unsigned int next_timer_us;
+ u64 next_timer_ns;
unsigned int bucket;
unsigned int correction_factor[BUCKETS];
unsigned int intervals[INTERVALS];
int interval_ptr;
};
-static inline int which_bucket(unsigned int duration, unsigned long nr_iowaiters)
+static inline int which_bucket(u64 duration_ns, unsigned long nr_iowaiters)
{
int bucket = 0;
@@ -140,15 +130,15 @@ static inline int which_bucket(unsigned int duration, unsigned long nr_iowaiters
if (nr_iowaiters)
bucket = BUCKETS/2;
- if (duration < 10)
+ if (duration_ns < 10ULL * NSEC_PER_USEC)
return bucket;
- if (duration < 100)
+ if (duration_ns < 100ULL * NSEC_PER_USEC)
return bucket + 1;
- if (duration < 1000)
+ if (duration_ns < 1000ULL * NSEC_PER_USEC)
return bucket + 2;
- if (duration < 10000)
+ if (duration_ns < 10000ULL * NSEC_PER_USEC)
return bucket + 3;
- if (duration < 100000)
+ if (duration_ns < 100000ULL * NSEC_PER_USEC)
return bucket + 4;
return bucket + 5;
}
@@ -276,13 +266,13 @@ static int menu_select(struct cpuidle_driver *drv, struct cpuidle_device *dev,
bool *stop_tick)
{
struct menu_device *data = this_cpu_ptr(&menu_devices);
- int latency_req = cpuidle_governor_latency_req(dev->cpu);
- int i;
- int idx;
- unsigned int interactivity_req;
+ s64 latency_req = cpuidle_governor_latency_req(dev->cpu);
unsigned int predicted_us;
+ u64 predicted_ns;
+ u64 interactivity_req;
unsigned long nr_iowaiters;
ktime_t delta_next;
+ int i, idx;
if (data->needs_update) {
menu_update(drv, dev);
@@ -290,15 +280,15 @@ static int menu_select(struct cpuidle_driver *drv, struct cpuidle_device *dev,
}
/* determine the expected residency time, round up */
- data->next_timer_us = ktime_to_us(tick_nohz_get_sleep_length(&delta_next));
+ data->next_timer_ns = tick_nohz_get_sleep_length(&delta_next);
nr_iowaiters = nr_iowait_cpu(dev->cpu);
- data->bucket = which_bucket(data->next_timer_us, nr_iowaiters);
+ data->bucket = which_bucket(data->next_timer_ns, nr_iowaiters);
if (unlikely(drv->state_count <= 1 || latency_req == 0) ||
- ((data->next_timer_us < drv->states[1].target_residency ||
- latency_req < drv->states[1].exit_latency) &&
- !drv->states[0].disabled && !dev->states_usage[0].disable)) {
+ ((data->next_timer_ns < drv->states[1].target_residency_ns ||
+ latency_req < drv->states[1].exit_latency_ns) &&
+ !dev->states_usage[0].disable)) {
/*
* In this case state[0] will be used no matter what, so return
* it right away and keep the tick running if state[0] is a
@@ -308,18 +298,15 @@ static int menu_select(struct cpuidle_driver *drv, struct cpuidle_device *dev,
return 0;
}
- /*
- * Force the result of multiplication to be 64 bits even if both
- * operands are 32 bits.
- * Make sure to round up for half microseconds.
- */
- predicted_us = DIV_ROUND_CLOSEST_ULL((uint64_t)data->next_timer_us *
- data->correction_factor[data->bucket],
- RESOLUTION * DECAY);
- /*
- * Use the lowest expected idle interval to pick the idle state.
- */
- predicted_us = min(predicted_us, get_typical_interval(data, predicted_us));
+ /* Round up the result for half microseconds. */
+ predicted_us = div_u64(data->next_timer_ns *
+ data->correction_factor[data->bucket] +
+ (RESOLUTION * DECAY * NSEC_PER_USEC) / 2,
+ RESOLUTION * DECAY * NSEC_PER_USEC);
+ /* Use the lowest expected idle interval to pick the idle state. */
+ predicted_ns = (u64)min(predicted_us,
+ get_typical_interval(data, predicted_us)) *
+ NSEC_PER_USEC;
if (tick_nohz_tick_stopped()) {
/*
@@ -330,14 +317,15 @@ static int menu_select(struct cpuidle_driver *drv, struct cpuidle_device *dev,
* the known time till the closest timer event for the idle
* state selection.
*/
- if (predicted_us < TICK_USEC)
- predicted_us = ktime_to_us(delta_next);
+ if (predicted_ns < TICK_NSEC)
+ predicted_ns = delta_next;
} else {
/*
* Use the performance multiplier and the user-configurable
* latency_req to determine the maximum exit latency.
*/
- interactivity_req = predicted_us / performance_multiplier(nr_iowaiters);
+ interactivity_req = div64_u64(predicted_ns,
+ performance_multiplier(nr_iowaiters));
if (latency_req > interactivity_req)
latency_req = interactivity_req;
}
@@ -349,27 +337,26 @@ static int menu_select(struct cpuidle_driver *drv, struct cpuidle_device *dev,
idx = -1;
for (i = 0; i < drv->state_count; i++) {
struct cpuidle_state *s = &drv->states[i];
- struct cpuidle_state_usage *su = &dev->states_usage[i];
- if (s->disabled || su->disable)
+ if (dev->states_usage[i].disable)
continue;
if (idx == -1)
idx = i; /* first enabled state */
- if (s->target_residency > predicted_us) {
+ if (s->target_residency_ns > predicted_ns) {
/*
* Use a physical idle state, not busy polling, unless
* a timer is going to trigger soon enough.
*/
if ((drv->states[idx].flags & CPUIDLE_FLAG_POLLING) &&
- s->exit_latency <= latency_req &&
- s->target_residency <= data->next_timer_us) {
- predicted_us = s->target_residency;
+ s->exit_latency_ns <= latency_req &&
+ s->target_residency_ns <= data->next_timer_ns) {
+ predicted_ns = s->target_residency_ns;
idx = i;
break;
}
- if (predicted_us < TICK_USEC)
+ if (predicted_ns < TICK_NSEC)
break;
if (!tick_nohz_tick_stopped()) {
@@ -379,7 +366,7 @@ static int menu_select(struct cpuidle_driver *drv, struct cpuidle_device *dev,
* tick in that case and let the governor run
* again in the next iteration of the loop.
*/
- predicted_us = drv->states[idx].target_residency;
+ predicted_ns = drv->states[idx].target_residency_ns;
break;
}
@@ -389,13 +376,13 @@ static int menu_select(struct cpuidle_driver *drv, struct cpuidle_device *dev,
* closest timer event, select this one to avoid getting
* stuck in the shallow one for too long.
*/
- if (drv->states[idx].target_residency < TICK_USEC &&
- s->target_residency <= ktime_to_us(delta_next))
+ if (drv->states[idx].target_residency_ns < TICK_NSEC &&
+ s->target_residency_ns <= delta_next)
idx = i;
return idx;
}
- if (s->exit_latency > latency_req)
+ if (s->exit_latency_ns > latency_req)
break;
idx = i;
@@ -409,12 +396,10 @@ static int menu_select(struct cpuidle_driver *drv, struct cpuidle_device *dev,
* expected idle duration is shorter than the tick period length.
*/
if (((drv->states[idx].flags & CPUIDLE_FLAG_POLLING) ||
- predicted_us < TICK_USEC) && !tick_nohz_tick_stopped()) {
- unsigned int delta_next_us = ktime_to_us(delta_next);
-
+ predicted_ns < TICK_NSEC) && !tick_nohz_tick_stopped()) {
*stop_tick = false;
- if (idx > 0 && drv->states[idx].target_residency > delta_next_us) {
+ if (idx > 0 && drv->states[idx].target_residency_ns > delta_next) {
/*
* The tick is not going to be stopped and the target
* residency of the state to be returned is not within
@@ -422,12 +407,11 @@ static int menu_select(struct cpuidle_driver *drv, struct cpuidle_device *dev,
* tick, so try to correct that.
*/
for (i = idx - 1; i >= 0; i--) {
- if (drv->states[i].disabled ||
- dev->states_usage[i].disable)
+ if (dev->states_usage[i].disable)
continue;
idx = i;
- if (drv->states[i].target_residency <= delta_next_us)
+ if (drv->states[i].target_residency_ns <= delta_next)
break;
}
}
@@ -463,7 +447,7 @@ static void menu_update(struct cpuidle_driver *drv, struct cpuidle_device *dev)
struct menu_device *data = this_cpu_ptr(&menu_devices);
int last_idx = dev->last_state_idx;
struct cpuidle_state *target = &drv->states[last_idx];
- unsigned int measured_us;
+ u64 measured_ns;
unsigned int new_factor;
/*
@@ -481,7 +465,7 @@ static void menu_update(struct cpuidle_driver *drv, struct cpuidle_device *dev)
* assume the state was never reached and the exit latency is 0.
*/
- if (data->tick_wakeup && data->next_timer_us > TICK_USEC) {
+ if (data->tick_wakeup && data->next_timer_ns > TICK_NSEC) {
/*
* The nohz code said that there wouldn't be any events within
* the tick boundary (if the tick was stopped), but the idle
@@ -491,7 +475,7 @@ static void menu_update(struct cpuidle_driver *drv, struct cpuidle_device *dev)
* have been idle long (but not forever) to help the idle
* duration predictor do a better job next time.
*/
- measured_us = 9 * MAX_INTERESTING / 10;
+ measured_ns = 9 * MAX_INTERESTING / 10;
} else if ((drv->states[last_idx].flags & CPUIDLE_FLAG_POLLING) &&
dev->poll_time_limit) {
/*
@@ -501,28 +485,29 @@ static void menu_update(struct cpuidle_driver *drv, struct cpuidle_device *dev)
* the CPU might have been woken up from idle by the next timer.
* Assume that to be the case.
*/
- measured_us = data->next_timer_us;
+ measured_ns = data->next_timer_ns;
} else {
/* measured value */
- measured_us = dev->last_residency;
+ measured_ns = dev->last_residency_ns;
/* Deduct exit latency */
- if (measured_us > 2 * target->exit_latency)
- measured_us -= target->exit_latency;
+ if (measured_ns > 2 * target->exit_latency_ns)
+ measured_ns -= target->exit_latency_ns;
else
- measured_us /= 2;
+ measured_ns /= 2;
}
/* Make sure our coefficients do not exceed unity */
- if (measured_us > data->next_timer_us)
- measured_us = data->next_timer_us;
+ if (measured_ns > data->next_timer_ns)
+ measured_ns = data->next_timer_ns;
/* Update our correction ratio */
new_factor = data->correction_factor[data->bucket];
new_factor -= new_factor / DECAY;
- if (data->next_timer_us > 0 && measured_us < MAX_INTERESTING)
- new_factor += RESOLUTION * measured_us / data->next_timer_us;
+ if (data->next_timer_ns > 0 && measured_ns < MAX_INTERESTING)
+ new_factor += div64_u64(RESOLUTION * measured_ns,
+ data->next_timer_ns);
else
/*
* we were idle so long that we count it as a perfect
@@ -542,7 +527,7 @@ static void menu_update(struct cpuidle_driver *drv, struct cpuidle_device *dev)
data->correction_factor[data->bucket] = new_factor;
/* update the repeating-pattern data */
- data->intervals[data->interval_ptr++] = measured_us;
+ data->intervals[data->interval_ptr++] = ktime_to_us(measured_ns);
if (data->interval_ptr >= INTERVALS)
data->interval_ptr = 0;
}
diff --git a/drivers/cpuidle/governors/teo.c b/drivers/cpuidle/governors/teo.c
index b5a0e49..de7e706 100644
--- a/drivers/cpuidle/governors/teo.c
+++ b/drivers/cpuidle/governors/teo.c
@@ -104,7 +104,7 @@ struct teo_cpu {
u64 sleep_length_ns;
struct teo_idle_state states[CPUIDLE_STATE_MAX];
int interval_idx;
- unsigned int intervals[INTERVALS];
+ u64 intervals[INTERVALS];
};
static DEFINE_PER_CPU(struct teo_cpu, teo_cpus);
@@ -117,9 +117,8 @@ static DEFINE_PER_CPU(struct teo_cpu, teo_cpus);
static void teo_update(struct cpuidle_driver *drv, struct cpuidle_device *dev)
{
struct teo_cpu *cpu_data = per_cpu_ptr(&teo_cpus, dev->cpu);
- unsigned int sleep_length_us = ktime_to_us(cpu_data->sleep_length_ns);
int i, idx_hit = -1, idx_timer = -1;
- unsigned int measured_us;
+ u64 measured_ns;
if (cpu_data->time_span_ns >= cpu_data->sleep_length_ns) {
/*
@@ -127,23 +126,28 @@ static void teo_update(struct cpuidle_driver *drv, struct cpuidle_device *dev)
* enough to the closest timer event expected at the idle state
* selection time to be discarded.
*/
- measured_us = UINT_MAX;
+ measured_ns = U64_MAX;
} else {
- unsigned int lat;
+ u64 lat_ns = drv->states[dev->last_state_idx].exit_latency_ns;
- lat = drv->states[dev->last_state_idx].exit_latency;
-
- measured_us = ktime_to_us(cpu_data->time_span_ns);
+ /*
+ * The computations below are to determine whether or not the
+ * (saved) time till the next timer event and the measured idle
+ * duration fall into the same "bin", so use last_residency_ns
+ * for that instead of time_span_ns which includes the cpuidle
+ * overhead.
+ */
+ measured_ns = dev->last_residency_ns;
/*
* The delay between the wakeup and the first instruction
* executed by the CPU is not likely to be worst-case every
* time, so take 1/2 of the exit latency as a very rough
* approximation of the average of it.
*/
- if (measured_us >= lat)
- measured_us -= lat / 2;
+ if (measured_ns >= lat_ns)
+ measured_ns -= lat_ns / 2;
else
- measured_us /= 2;
+ measured_ns /= 2;
}
/*
@@ -155,9 +159,9 @@ static void teo_update(struct cpuidle_driver *drv, struct cpuidle_device *dev)
cpu_data->states[i].early_hits -= early_hits >> DECAY_SHIFT;
- if (drv->states[i].target_residency <= sleep_length_us) {
+ if (drv->states[i].target_residency_ns <= cpu_data->sleep_length_ns) {
idx_timer = i;
- if (drv->states[i].target_residency <= measured_us)
+ if (drv->states[i].target_residency_ns <= measured_ns)
idx_hit = i;
}
}
@@ -193,30 +197,35 @@ static void teo_update(struct cpuidle_driver *drv, struct cpuidle_device *dev)
* Save idle duration values corresponding to non-timer wakeups for
* pattern detection.
*/
- cpu_data->intervals[cpu_data->interval_idx++] = measured_us;
+ cpu_data->intervals[cpu_data->interval_idx++] = measured_ns;
if (cpu_data->interval_idx > INTERVALS)
cpu_data->interval_idx = 0;
}
+static bool teo_time_ok(u64 interval_ns)
+{
+ return !tick_nohz_tick_stopped() || interval_ns >= TICK_NSEC;
+}
+
/**
* teo_find_shallower_state - Find shallower idle state matching given duration.
* @drv: cpuidle driver containing state data.
* @dev: Target CPU.
* @state_idx: Index of the capping idle state.
- * @duration_us: Idle duration value to match.
+ * @duration_ns: Idle duration value to match.
*/
static int teo_find_shallower_state(struct cpuidle_driver *drv,
struct cpuidle_device *dev, int state_idx,
- unsigned int duration_us)
+ u64 duration_ns)
{
int i;
for (i = state_idx - 1; i >= 0; i--) {
- if (drv->states[i].disabled || dev->states_usage[i].disable)
+ if (dev->states_usage[i].disable)
continue;
state_idx = i;
- if (drv->states[i].target_residency <= duration_us)
+ if (drv->states[i].target_residency_ns <= duration_ns)
break;
}
return state_idx;
@@ -232,9 +241,10 @@ static int teo_select(struct cpuidle_driver *drv, struct cpuidle_device *dev,
bool *stop_tick)
{
struct teo_cpu *cpu_data = per_cpu_ptr(&teo_cpus, dev->cpu);
- int latency_req = cpuidle_governor_latency_req(dev->cpu);
- unsigned int duration_us, count;
- int max_early_idx, constraint_idx, idx, i;
+ s64 latency_req = cpuidle_governor_latency_req(dev->cpu);
+ u64 duration_ns;
+ unsigned int hits, misses, early_hits;
+ int max_early_idx, prev_max_early_idx, constraint_idx, idx, i;
ktime_t delta_tick;
if (dev->last_state_idx >= 0) {
@@ -244,50 +254,92 @@ static int teo_select(struct cpuidle_driver *drv, struct cpuidle_device *dev,
cpu_data->time_span_ns = local_clock();
- cpu_data->sleep_length_ns = tick_nohz_get_sleep_length(&delta_tick);
- duration_us = ktime_to_us(cpu_data->sleep_length_ns);
+ duration_ns = tick_nohz_get_sleep_length(&delta_tick);
+ cpu_data->sleep_length_ns = duration_ns;
- count = 0;
+ hits = 0;
+ misses = 0;
+ early_hits = 0;
max_early_idx = -1;
+ prev_max_early_idx = -1;
constraint_idx = drv->state_count;
idx = -1;
for (i = 0; i < drv->state_count; i++) {
struct cpuidle_state *s = &drv->states[i];
- struct cpuidle_state_usage *su = &dev->states_usage[i];
- if (s->disabled || su->disable) {
+ if (dev->states_usage[i].disable) {
/*
- * If the "early hits" metric of a disabled state is
- * greater than the current maximum, it should be taken
- * into account, because it would be a mistake to select
- * a deeper state with lower "early hits" metric. The
- * index cannot be changed to point to it, however, so
- * just increase the max count alone and let the index
- * still point to a shallower idle state.
+ * Ignore disabled states with target residencies beyond
+ * the anticipated idle duration.
*/
- if (max_early_idx >= 0 &&
- count < cpu_data->states[i].early_hits)
- count = cpu_data->states[i].early_hits;
+ if (s->target_residency_ns > duration_ns)
+ continue;
+
+ /*
+ * This state is disabled, so the range of idle duration
+ * values corresponding to it is covered by the current
+ * candidate state, but still the "hits" and "misses"
+ * metrics of the disabled state need to be used to
+ * decide whether or not the state covering the range in
+ * question is good enough.
+ */
+ hits = cpu_data->states[i].hits;
+ misses = cpu_data->states[i].misses;
+
+ if (early_hits >= cpu_data->states[i].early_hits ||
+ idx < 0)
+ continue;
+
+ /*
+ * If the current candidate state has been the one with
+ * the maximum "early hits" metric so far, the "early
+ * hits" metric of the disabled state replaces the
+ * current "early hits" count to avoid selecting a
+ * deeper state with lower "early hits" metric.
+ */
+ if (max_early_idx == idx) {
+ early_hits = cpu_data->states[i].early_hits;
+ continue;
+ }
+
+ /*
+ * The current candidate state is closer to the disabled
+ * one than the current maximum "early hits" state, so
+ * replace the latter with it, but in case the maximum
+ * "early hits" state index has not been set so far,
+ * check if the current candidate state is not too
+ * shallow for that role.
+ */
+ if (teo_time_ok(drv->states[idx].target_residency_ns)) {
+ prev_max_early_idx = max_early_idx;
+ early_hits = cpu_data->states[i].early_hits;
+ max_early_idx = idx;
+ }
continue;
}
- if (idx < 0)
+ if (idx < 0) {
idx = i; /* first enabled state */
+ hits = cpu_data->states[i].hits;
+ misses = cpu_data->states[i].misses;
+ }
- if (s->target_residency > duration_us)
+ if (s->target_residency_ns > duration_ns)
break;
- if (s->exit_latency > latency_req && constraint_idx > i)
+ if (s->exit_latency_ns > latency_req && constraint_idx > i)
constraint_idx = i;
idx = i;
+ hits = cpu_data->states[i].hits;
+ misses = cpu_data->states[i].misses;
- if (count < cpu_data->states[i].early_hits &&
- !(tick_nohz_tick_stopped() &&
- drv->states[i].target_residency < TICK_USEC)) {
- count = cpu_data->states[i].early_hits;
+ if (early_hits < cpu_data->states[i].early_hits &&
+ teo_time_ok(drv->states[i].target_residency_ns)) {
+ prev_max_early_idx = max_early_idx;
+ early_hits = cpu_data->states[i].early_hits;
max_early_idx = i;
}
}
@@ -300,10 +352,19 @@ static int teo_select(struct cpuidle_driver *drv, struct cpuidle_device *dev,
* "early hits" metric, but if that cannot be determined, just use the
* state selected so far.
*/
- if (cpu_data->states[idx].hits <= cpu_data->states[idx].misses &&
- max_early_idx >= 0) {
- idx = max_early_idx;
- duration_us = drv->states[idx].target_residency;
+ if (hits <= misses) {
+ /*
+ * The current candidate state is not suitable, so take the one
+ * whose "early hits" metric is the maximum for the range of
+ * shallower states.
+ */
+ if (idx == max_early_idx)
+ max_early_idx = prev_max_early_idx;
+
+ if (max_early_idx >= 0) {
+ idx = max_early_idx;
+ duration_ns = drv->states[idx].target_residency_ns;
+ }
}
/*
@@ -316,18 +377,17 @@ static int teo_select(struct cpuidle_driver *drv, struct cpuidle_device *dev,
if (idx < 0) {
idx = 0; /* No states enabled. Must use 0. */
} else if (idx > 0) {
+ unsigned int count = 0;
u64 sum = 0;
- count = 0;
-
/*
* Count and sum the most recent idle duration values less than
* the current expected idle duration value.
*/
for (i = 0; i < INTERVALS; i++) {
- unsigned int val = cpu_data->intervals[i];
+ u64 val = cpu_data->intervals[i];
- if (val >= duration_us)
+ if (val >= duration_ns)
continue;
count++;
@@ -339,17 +399,17 @@ static int teo_select(struct cpuidle_driver *drv, struct cpuidle_device *dev,
* values are in the interesting range.
*/
if (count > INTERVALS / 2) {
- unsigned int avg_us = div64_u64(sum, count);
+ u64 avg_ns = div64_u64(sum, count);
/*
* Avoid spending too much time in an idle state that
* would be too shallow.
*/
- if (!(tick_nohz_tick_stopped() && avg_us < TICK_USEC)) {
- duration_us = avg_us;
- if (drv->states[idx].target_residency > avg_us)
+ if (teo_time_ok(avg_ns)) {
+ duration_ns = avg_ns;
+ if (drv->states[idx].target_residency_ns > avg_ns)
idx = teo_find_shallower_state(drv, dev,
- idx, avg_us);
+ idx, avg_ns);
}
}
}
@@ -359,9 +419,7 @@ static int teo_select(struct cpuidle_driver *drv, struct cpuidle_device *dev,
* expected idle duration is shorter than the tick period length.
*/
if (((drv->states[idx].flags & CPUIDLE_FLAG_POLLING) ||
- duration_us < TICK_USEC) && !tick_nohz_tick_stopped()) {
- unsigned int delta_tick_us = ktime_to_us(delta_tick);
-
+ duration_ns < TICK_NSEC) && !tick_nohz_tick_stopped()) {
*stop_tick = false;
/*
@@ -370,8 +428,8 @@ static int teo_select(struct cpuidle_driver *drv, struct cpuidle_device *dev,
* till the closest timer including the tick, try to correct
* that.
*/
- if (idx > 0 && drv->states[idx].target_residency > delta_tick_us)
- idx = teo_find_shallower_state(drv, dev, idx, delta_tick_us);
+ if (idx > 0 && drv->states[idx].target_residency_ns > delta_tick)
+ idx = teo_find_shallower_state(drv, dev, idx, delta_tick);
}
return idx;
@@ -415,7 +473,7 @@ static int teo_enable_device(struct cpuidle_driver *drv,
memset(cpu_data, 0, sizeof(*cpu_data));
for (i = 0; i < INTERVALS; i++)
- cpu_data->intervals[i] = UINT_MAX;
+ cpu_data->intervals[i] = U64_MAX;
return 0;
}
diff --git a/drivers/cpuidle/poll_state.c b/drivers/cpuidle/poll_state.c
index c8fa5f4..9f1ace9 100644
--- a/drivers/cpuidle/poll_state.c
+++ b/drivers/cpuidle/poll_state.c
@@ -49,6 +49,8 @@ void cpuidle_poll_state_init(struct cpuidle_driver *drv)
snprintf(state->desc, CPUIDLE_DESC_LEN, "CPUIDLE CORE POLL IDLE");
state->exit_latency = 0;
state->target_residency = 0;
+ state->exit_latency_ns = 0;
+ state->target_residency_ns = 0;
state->power_usage = -1;
state->enter = poll_idle;
state->disabled = false;
diff --git a/drivers/cpuidle/sysfs.c b/drivers/cpuidle/sysfs.c
index 2bb2683..38ef770 100644
--- a/drivers/cpuidle/sysfs.c
+++ b/drivers/cpuidle/sysfs.c
@@ -255,25 +255,6 @@ static ssize_t show_state_##_name(struct cpuidle_state *state, \
return sprintf(buf, "%u\n", state->_name);\
}
-#define define_store_state_ull_function(_name) \
-static ssize_t store_state_##_name(struct cpuidle_state *state, \
- struct cpuidle_state_usage *state_usage, \
- const char *buf, size_t size) \
-{ \
- unsigned long long value; \
- int err; \
- if (!capable(CAP_SYS_ADMIN)) \
- return -EPERM; \
- err = kstrtoull(buf, 0, &value); \
- if (err) \
- return err; \
- if (value) \
- state_usage->_name = 1; \
- else \
- state_usage->_name = 0; \
- return size; \
-}
-
#define define_show_state_ull_function(_name) \
static ssize_t show_state_##_name(struct cpuidle_state *state, \
struct cpuidle_state_usage *state_usage, \
@@ -292,18 +273,60 @@ static ssize_t show_state_##_name(struct cpuidle_state *state, \
return sprintf(buf, "%s\n", state->_name);\
}
-define_show_state_function(exit_latency)
-define_show_state_function(target_residency)
+#define define_show_state_time_function(_name) \
+static ssize_t show_state_##_name(struct cpuidle_state *state, \
+ struct cpuidle_state_usage *state_usage, \
+ char *buf) \
+{ \
+ return sprintf(buf, "%llu\n", ktime_to_us(state->_name##_ns)); \
+}
+
+define_show_state_time_function(exit_latency)
+define_show_state_time_function(target_residency)
define_show_state_function(power_usage)
define_show_state_ull_function(usage)
-define_show_state_ull_function(time)
define_show_state_str_function(name)
define_show_state_str_function(desc)
-define_show_state_ull_function(disable)
-define_store_state_ull_function(disable)
define_show_state_ull_function(above)
define_show_state_ull_function(below)
+static ssize_t show_state_time(struct cpuidle_state *state,
+ struct cpuidle_state_usage *state_usage,
+ char *buf)
+{
+ return sprintf(buf, "%llu\n", ktime_to_us(state_usage->time_ns));
+}
+
+static ssize_t show_state_disable(struct cpuidle_state *state,
+ struct cpuidle_state_usage *state_usage,
+ char *buf)
+{
+ return sprintf(buf, "%llu\n",
+ state_usage->disable & CPUIDLE_STATE_DISABLED_BY_USER);
+}
+
+static ssize_t store_state_disable(struct cpuidle_state *state,
+ struct cpuidle_state_usage *state_usage,
+ const char *buf, size_t size)
+{
+ unsigned int value;
+ int err;
+
+ if (!capable(CAP_SYS_ADMIN))
+ return -EPERM;
+
+ err = kstrtouint(buf, 0, &value);
+ if (err)
+ return err;
+
+ if (value)
+ state_usage->disable |= CPUIDLE_STATE_DISABLED_BY_USER;
+ else
+ state_usage->disable &= ~CPUIDLE_STATE_DISABLED_BY_USER;
+
+ return size;
+}
+
define_one_state_ro(name, show_state_name);
define_one_state_ro(desc, show_state_desc);
define_one_state_ro(latency, show_state_exit_latency);
diff --git a/drivers/gpio/gpio-merrifield.c b/drivers/gpio/gpio-merrifield.c
index 2f1e9da..3302125 100644
--- a/drivers/gpio/gpio-merrifield.c
+++ b/drivers/gpio/gpio-merrifield.c
@@ -362,9 +362,8 @@ static void mrfld_irq_handler(struct irq_desc *desc)
chained_irq_exit(irqchip, desc);
}
-static int mrfld_irq_init_hw(struct gpio_chip *chip)
+static void mrfld_irq_init_hw(struct mrfld_gpio *priv)
{
- struct mrfld_gpio *priv = gpiochip_get_data(chip);
void __iomem *reg;
unsigned int base;
@@ -376,8 +375,6 @@ static int mrfld_irq_init_hw(struct gpio_chip *chip)
reg = gpio_reg(&priv->chip, base, GFER);
writel(0, reg);
}
-
- return 0;
}
static const char *mrfld_gpio_get_pinctrl_dev_name(struct mrfld_gpio *priv)
@@ -400,7 +397,6 @@ static int mrfld_gpio_probe(struct pci_dev *pdev, const struct pci_device_id *id
{
const struct mrfld_gpio_pinrange *range;
const char *pinctrl_dev_name;
- struct gpio_irq_chip *girq;
struct mrfld_gpio *priv;
u32 gpio_base, irq_base;
void __iomem *base;
@@ -448,21 +444,6 @@ static int mrfld_gpio_probe(struct pci_dev *pdev, const struct pci_device_id *id
raw_spin_lock_init(&priv->lock);
- girq = &priv->chip.irq;
- girq->chip = &mrfld_irqchip;
- girq->init_hw = mrfld_irq_init_hw;
- girq->parent_handler = mrfld_irq_handler;
- girq->num_parents = 1;
- girq->parents = devm_kcalloc(&pdev->dev, girq->num_parents,
- sizeof(*girq->parents),
- GFP_KERNEL);
- if (!girq->parents)
- return -ENOMEM;
- girq->parents[0] = pdev->irq;
- girq->first = irq_base;
- girq->default_type = IRQ_TYPE_NONE;
- girq->handler = handle_bad_irq;
-
pci_set_drvdata(pdev, priv);
retval = devm_gpiochip_add_data(&pdev->dev, &priv->chip, priv);
if (retval) {
@@ -484,6 +465,18 @@ static int mrfld_gpio_probe(struct pci_dev *pdev, const struct pci_device_id *id
}
}
+ retval = gpiochip_irqchip_add(&priv->chip, &mrfld_irqchip, irq_base,
+ handle_bad_irq, IRQ_TYPE_NONE);
+ if (retval) {
+ dev_err(&pdev->dev, "could not connect irqchip to gpiochip\n");
+ return retval;
+ }
+
+ mrfld_irq_init_hw(priv);
+
+ gpiochip_set_chained_irqchip(&priv->chip, &mrfld_irqchip, pdev->irq,
+ mrfld_irq_handler);
+
return 0;
}
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c
index 6614d8a..2cdaf3b 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ctx.c
@@ -604,8 +604,11 @@ void amdgpu_ctx_mgr_entity_fini(struct amdgpu_ctx_mgr *mgr)
continue;
}
- for (i = 0; i < num_entities; i++)
+ for (i = 0; i < num_entities; i++) {
+ mutex_lock(&ctx->adev->lock_reset);
drm_sched_entity_fini(&ctx->entities[0][i].entity);
+ mutex_unlock(&ctx->adev->lock_reset);
+ }
}
}
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 5a1939d..7a6c837 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -2885,6 +2885,13 @@ int amdgpu_device_init(struct amdgpu_device *adev,
DRM_INFO("amdgpu: acceleration disabled, skipping benchmarks\n");
}
+ /*
+ * Register gpu instance before amdgpu_device_enable_mgpu_fan_boost.
+ * Otherwise the mgpu fan boost feature will be skipped due to the
+ * gpu instance is counted less.
+ */
+ amdgpu_register_gpu_instance(adev);
+
/* enable clockgating, etc. after ib tests, etc. since some blocks require
* explicit gating rather than handling it automatically.
*/
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
index 2a00a36..e1c1572 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c
@@ -1016,6 +1016,7 @@ static const struct pci_device_id pciidlist[] = {
{0x1002, 0x7340, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_NAVI14|AMD_EXP_HW_SUPPORT},
{0x1002, 0x7341, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_NAVI14|AMD_EXP_HW_SUPPORT},
{0x1002, 0x7347, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_NAVI14|AMD_EXP_HW_SUPPORT},
+ {0x1002, 0x734F, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_NAVI14|AMD_EXP_HW_SUPPORT},
/* Renoir */
{0x1002, 0x1636, PCI_ANY_ID, PCI_ANY_ID, 0, 0, CHIP_RENOIR|AMD_IS_APU|AMD_EXP_HW_SUPPORT},
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.h
index 6ee4021..6d19183 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.h
@@ -289,6 +289,7 @@ struct amdgpu_gfx {
uint32_t mec2_feature_version;
bool mec_fw_write_wait;
bool me_fw_write_wait;
+ bool cp_fw_write_wait;
struct amdgpu_ring gfx_ring[AMDGPU_MAX_GFX_RINGS];
unsigned num_gfx_rings;
struct amdgpu_ring compute_ring[AMDGPU_MAX_COMPUTE_RINGS];
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
index d55f5ba..a042ef4 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
@@ -190,7 +190,6 @@ int amdgpu_driver_load_kms(struct drm_device *dev, unsigned long flags)
pm_runtime_put_autosuspend(dev->dev);
}
- amdgpu_register_gpu_instance(adev);
out:
if (r) {
/* balance pm_runtime_get_sync in amdgpu_driver_unload_kms */
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
index 4d71537..a460900 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
@@ -950,21 +950,7 @@ static void psp_print_fw_hdr(struct psp_context *psp,
struct amdgpu_firmware_info *ucode)
{
struct amdgpu_device *adev = psp->adev;
- const struct sdma_firmware_header_v1_0 *sdma_hdr =
- (const struct sdma_firmware_header_v1_0 *)
- adev->sdma.instance[ucode->ucode_id - AMDGPU_UCODE_ID_SDMA0].fw->data;
- const struct gfx_firmware_header_v1_0 *ce_hdr =
- (const struct gfx_firmware_header_v1_0 *)adev->gfx.ce_fw->data;
- const struct gfx_firmware_header_v1_0 *pfp_hdr =
- (const struct gfx_firmware_header_v1_0 *)adev->gfx.pfp_fw->data;
- const struct gfx_firmware_header_v1_0 *me_hdr =
- (const struct gfx_firmware_header_v1_0 *)adev->gfx.me_fw->data;
- const struct gfx_firmware_header_v1_0 *mec_hdr =
- (const struct gfx_firmware_header_v1_0 *)adev->gfx.mec_fw->data;
- const struct rlc_firmware_header_v2_0 *rlc_hdr =
- (const struct rlc_firmware_header_v2_0 *)adev->gfx.rlc_fw->data;
- const struct smc_firmware_header_v1_0 *smc_hdr =
- (const struct smc_firmware_header_v1_0 *)adev->pm.fw->data;
+ struct common_firmware_header *hdr;
switch (ucode->ucode_id) {
case AMDGPU_UCODE_ID_SDMA0:
@@ -975,25 +961,33 @@ static void psp_print_fw_hdr(struct psp_context *psp,
case AMDGPU_UCODE_ID_SDMA5:
case AMDGPU_UCODE_ID_SDMA6:
case AMDGPU_UCODE_ID_SDMA7:
- amdgpu_ucode_print_sdma_hdr(&sdma_hdr->header);
+ hdr = (struct common_firmware_header *)
+ adev->sdma.instance[ucode->ucode_id - AMDGPU_UCODE_ID_SDMA0].fw->data;
+ amdgpu_ucode_print_sdma_hdr(hdr);
break;
case AMDGPU_UCODE_ID_CP_CE:
- amdgpu_ucode_print_gfx_hdr(&ce_hdr->header);
+ hdr = (struct common_firmware_header *)adev->gfx.ce_fw->data;
+ amdgpu_ucode_print_gfx_hdr(hdr);
break;
case AMDGPU_UCODE_ID_CP_PFP:
- amdgpu_ucode_print_gfx_hdr(&pfp_hdr->header);
+ hdr = (struct common_firmware_header *)adev->gfx.pfp_fw->data;
+ amdgpu_ucode_print_gfx_hdr(hdr);
break;
case AMDGPU_UCODE_ID_CP_ME:
- amdgpu_ucode_print_gfx_hdr(&me_hdr->header);
+ hdr = (struct common_firmware_header *)adev->gfx.me_fw->data;
+ amdgpu_ucode_print_gfx_hdr(hdr);
break;
case AMDGPU_UCODE_ID_CP_MEC1:
- amdgpu_ucode_print_gfx_hdr(&mec_hdr->header);
+ hdr = (struct common_firmware_header *)adev->gfx.mec_fw->data;
+ amdgpu_ucode_print_gfx_hdr(hdr);
break;
case AMDGPU_UCODE_ID_RLC_G:
- amdgpu_ucode_print_rlc_hdr(&rlc_hdr->header);
+ hdr = (struct common_firmware_header *)adev->gfx.rlc_fw->data;
+ amdgpu_ucode_print_rlc_hdr(hdr);
break;
case AMDGPU_UCODE_ID_SMC:
- amdgpu_ucode_print_smc_hdr(&smc_hdr->header);
+ hdr = (struct common_firmware_header *)adev->pm.fw->data;
+ amdgpu_ucode_print_smc_hdr(hdr);
break;
default:
break;
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
index 8dfc775..53090ea 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c
@@ -564,6 +564,32 @@ static void gfx_v10_0_free_microcode(struct amdgpu_device *adev)
kfree(adev->gfx.rlc.register_list_format);
}
+static void gfx_v10_0_check_fw_write_wait(struct amdgpu_device *adev)
+{
+ adev->gfx.cp_fw_write_wait = false;
+
+ switch (adev->asic_type) {
+ case CHIP_NAVI10:
+ case CHIP_NAVI12:
+ case CHIP_NAVI14:
+ if ((adev->gfx.me_fw_version >= 0x00000046) &&
+ (adev->gfx.me_feature_version >= 27) &&
+ (adev->gfx.pfp_fw_version >= 0x00000068) &&
+ (adev->gfx.pfp_feature_version >= 27) &&
+ (adev->gfx.mec_fw_version >= 0x0000005b) &&
+ (adev->gfx.mec_feature_version >= 27))
+ adev->gfx.cp_fw_write_wait = true;
+ break;
+ default:
+ break;
+ }
+
+ if (adev->gfx.cp_fw_write_wait == false)
+ DRM_WARN_ONCE("Warning: check cp_fw_version and update it to realize \
+ GRBM requires 1-cycle delay in cp firmware\n");
+}
+
+
static void gfx_v10_0_init_rlc_ext_microcode(struct amdgpu_device *adev)
{
const struct rlc_firmware_header_v2_1 *rlc_hdr;
@@ -832,6 +858,7 @@ static int gfx_v10_0_init_microcode(struct amdgpu_device *adev)
}
}
+ gfx_v10_0_check_fw_write_wait(adev);
out:
if (err) {
dev_err(adev->dev,
@@ -4765,6 +4792,24 @@ static void gfx_v10_0_ring_emit_reg_wait(struct amdgpu_ring *ring, uint32_t reg,
gfx_v10_0_wait_reg_mem(ring, 0, 0, 0, reg, 0, val, mask, 0x20);
}
+static void gfx_v10_0_ring_emit_reg_write_reg_wait(struct amdgpu_ring *ring,
+ uint32_t reg0, uint32_t reg1,
+ uint32_t ref, uint32_t mask)
+{
+ int usepfp = (ring->funcs->type == AMDGPU_RING_TYPE_GFX);
+ struct amdgpu_device *adev = ring->adev;
+ bool fw_version_ok = false;
+
+ fw_version_ok = adev->gfx.cp_fw_write_wait;
+
+ if (fw_version_ok)
+ gfx_v10_0_wait_reg_mem(ring, usepfp, 0, 1, reg0, reg1,
+ ref, mask, 0x20);
+ else
+ amdgpu_ring_emit_reg_write_reg_wait_helper(ring, reg0, reg1,
+ ref, mask);
+}
+
static void
gfx_v10_0_set_gfx_eop_interrupt_state(struct amdgpu_device *adev,
uint32_t me, uint32_t pipe,
@@ -5155,6 +5200,7 @@ static const struct amdgpu_ring_funcs gfx_v10_0_ring_funcs_gfx = {
.emit_tmz = gfx_v10_0_ring_emit_tmz,
.emit_wreg = gfx_v10_0_ring_emit_wreg,
.emit_reg_wait = gfx_v10_0_ring_emit_reg_wait,
+ .emit_reg_write_reg_wait = gfx_v10_0_ring_emit_reg_write_reg_wait,
};
static const struct amdgpu_ring_funcs gfx_v10_0_ring_funcs_compute = {
@@ -5188,6 +5234,7 @@ static const struct amdgpu_ring_funcs gfx_v10_0_ring_funcs_compute = {
.pad_ib = amdgpu_ring_generic_pad_ib,
.emit_wreg = gfx_v10_0_ring_emit_wreg,
.emit_reg_wait = gfx_v10_0_ring_emit_reg_wait,
+ .emit_reg_write_reg_wait = gfx_v10_0_ring_emit_reg_write_reg_wait,
};
static const struct amdgpu_ring_funcs gfx_v10_0_ring_funcs_kiq = {
@@ -5218,6 +5265,7 @@ static const struct amdgpu_ring_funcs gfx_v10_0_ring_funcs_kiq = {
.emit_rreg = gfx_v10_0_ring_emit_rreg,
.emit_wreg = gfx_v10_0_ring_emit_wreg,
.emit_reg_wait = gfx_v10_0_ring_emit_reg_wait,
+ .emit_reg_write_reg_wait = gfx_v10_0_ring_emit_reg_write_reg_wait,
};
static void gfx_v10_0_set_ring_funcs(struct amdgpu_device *adev)
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
index dcadc73..dfca83a 100644
--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
@@ -973,6 +973,13 @@ static void gfx_v9_0_check_fw_write_wait(struct amdgpu_device *adev)
adev->gfx.me_fw_write_wait = false;
adev->gfx.mec_fw_write_wait = false;
+ if ((adev->gfx.mec_fw_version < 0x000001a5) ||
+ (adev->gfx.mec_feature_version < 46) ||
+ (adev->gfx.pfp_fw_version < 0x000000b7) ||
+ (adev->gfx.pfp_feature_version < 46))
+ DRM_WARN_ONCE("Warning: check cp_fw_version and update it to realize \
+ GRBM requires 1-cycle delay in cp firmware\n");
+
switch (adev->asic_type) {
case CHIP_VEGA10:
if ((adev->gfx.me_fw_version >= 0x0000009c) &&
@@ -1044,6 +1051,12 @@ static void gfx_v9_0_check_if_need_gfxoff(struct amdgpu_device *adev)
AMD_PG_SUPPORT_CP |
AMD_PG_SUPPORT_RLC_SMU_HS;
break;
+ case CHIP_RENOIR:
+ if (adev->pm.pp_feature & PP_GFXOFF_MASK)
+ adev->pg_flags |= AMD_PG_SUPPORT_GFX_PG |
+ AMD_PG_SUPPORT_CP |
+ AMD_PG_SUPPORT_RLC_SMU_HS;
+ break;
default:
break;
}
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c
index 354e620..5c7d5f7 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c
@@ -344,11 +344,9 @@ static uint64_t gmc_v10_0_emit_flush_gpu_tlb(struct amdgpu_ring *ring,
amdgpu_ring_emit_wreg(ring, hub->ctx0_ptb_addr_hi32 + (2 * vmid),
upper_32_bits(pd_addr));
- amdgpu_ring_emit_wreg(ring, hub->vm_inv_eng0_req + eng, req);
-
- /* wait for the invalidate to complete */
- amdgpu_ring_emit_reg_wait(ring, hub->vm_inv_eng0_ack + eng,
- 1 << vmid, 1 << vmid);
+ amdgpu_ring_emit_reg_write_reg_wait(ring, hub->vm_inv_eng0_req + eng,
+ hub->vm_inv_eng0_ack + eng,
+ req, 1 << vmid);
return pd_addr;
}
diff --git a/drivers/gpu/drm/amd/amdgpu/mmhub_v9_4.c b/drivers/gpu/drm/amd/amdgpu/mmhub_v9_4.c
index 0cf7ef4..9ed178f 100644
--- a/drivers/gpu/drm/amd/amdgpu/mmhub_v9_4.c
+++ b/drivers/gpu/drm/amd/amdgpu/mmhub_v9_4.c
@@ -219,6 +219,15 @@ static void mmhub_v9_4_init_cache_regs(struct amdgpu_device *adev, int hubid)
hubid * MMHUB_INSTANCE_REGISTER_OFFSET, tmp);
tmp = mmVML2PF0_VM_L2_CNTL3_DEFAULT;
+ if (adev->gmc.translate_further) {
+ tmp = REG_SET_FIELD(tmp, VML2PF0_VM_L2_CNTL3, BANK_SELECT, 12);
+ tmp = REG_SET_FIELD(tmp, VML2PF0_VM_L2_CNTL3,
+ L2_CACHE_BIGK_FRAGMENT_SIZE, 9);
+ } else {
+ tmp = REG_SET_FIELD(tmp, VML2PF0_VM_L2_CNTL3, BANK_SELECT, 9);
+ tmp = REG_SET_FIELD(tmp, VML2PF0_VM_L2_CNTL3,
+ L2_CACHE_BIGK_FRAGMENT_SIZE, 6);
+ }
WREG32_SOC15_OFFSET(MMHUB, 0, mmVML2PF0_VM_L2_CNTL3,
hubid * MMHUB_INSTANCE_REGISTER_OFFSET, tmp);
diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v5_0.c b/drivers/gpu/drm/amd/amdgpu/sdma_v5_0.c
index f6e8168..8493bfb 100644
--- a/drivers/gpu/drm/amd/amdgpu/sdma_v5_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/sdma_v5_0.c
@@ -1173,6 +1173,16 @@ static void sdma_v5_0_ring_emit_reg_wait(struct amdgpu_ring *ring, uint32_t reg,
SDMA_PKT_POLL_REGMEM_DW5_INTERVAL(10));
}
+static void sdma_v5_0_ring_emit_reg_write_reg_wait(struct amdgpu_ring *ring,
+ uint32_t reg0, uint32_t reg1,
+ uint32_t ref, uint32_t mask)
+{
+ amdgpu_ring_emit_wreg(ring, reg0, ref);
+ /* wait for a cycle to reset vm_inv_eng*_ack */
+ amdgpu_ring_emit_reg_wait(ring, reg0, 0, 0);
+ amdgpu_ring_emit_reg_wait(ring, reg1, mask, mask);
+}
+
static int sdma_v5_0_early_init(void *handle)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
@@ -1588,7 +1598,7 @@ static const struct amdgpu_ring_funcs sdma_v5_0_ring_funcs = {
6 + /* sdma_v5_0_ring_emit_pipeline_sync */
/* sdma_v5_0_ring_emit_vm_flush */
SOC15_FLUSH_GPU_TLB_NUM_WREG * 3 +
- SOC15_FLUSH_GPU_TLB_NUM_REG_WAIT * 6 +
+ SOC15_FLUSH_GPU_TLB_NUM_REG_WAIT * 6 * 2 +
10 + 10 + 10, /* sdma_v5_0_ring_emit_fence x3 for user fence, vm fence */
.emit_ib_size = 7 + 6, /* sdma_v5_0_ring_emit_ib */
.emit_ib = sdma_v5_0_ring_emit_ib,
@@ -1602,6 +1612,7 @@ static const struct amdgpu_ring_funcs sdma_v5_0_ring_funcs = {
.pad_ib = sdma_v5_0_ring_pad_ib,
.emit_wreg = sdma_v5_0_ring_emit_wreg,
.emit_reg_wait = sdma_v5_0_ring_emit_reg_wait,
+ .emit_reg_write_reg_wait = sdma_v5_0_ring_emit_reg_write_reg_wait,
.init_cond_exec = sdma_v5_0_ring_init_cond_exec,
.patch_cond_exec = sdma_v5_0_ring_patch_cond_exec,
.preempt_ib = sdma_v5_0_ring_preempt_ib,
diff --git a/drivers/gpu/drm/amd/amdgpu/soc15.c b/drivers/gpu/drm/amd/amdgpu/soc15.c
index f8ab80c..4ccfcdf 100644
--- a/drivers/gpu/drm/amd/amdgpu/soc15.c
+++ b/drivers/gpu/drm/amd/amdgpu/soc15.c
@@ -1186,11 +1186,6 @@ static int soc15_common_early_init(void *handle)
AMD_PG_SUPPORT_VCN |
AMD_PG_SUPPORT_VCN_DPG;
adev->external_rev_id = adev->rev_id + 0x91;
-
- if (adev->pm.pp_feature & PP_GFXOFF_MASK)
- adev->pg_flags |= AMD_PG_SUPPORT_GFX_PG |
- AMD_PG_SUPPORT_CP |
- AMD_PG_SUPPORT_RLC_SMU_HS;
break;
default:
/* FIXME: not supported yet */
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link.c b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
index 9c58670..ca20b15 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
@@ -2767,15 +2767,6 @@ void core_link_enable_stream(
CONTROLLER_DP_TEST_PATTERN_VIDEOMODE,
COLOR_DEPTH_UNDEFINED);
- /* This second call is needed to reconfigure the DIG
- * as a workaround for the incorrect value being applied
- * from transmitter control.
- */
- if (!dc_is_virtual_signal(pipe_ctx->stream->signal))
- stream->link->link_enc->funcs->setup(
- stream->link->link_enc,
- pipe_ctx->stream->signal);
-
#ifdef CONFIG_DRM_AMD_DC_DSC_SUPPORT
if (pipe_ctx->stream->timing.flags.DSC) {
if (dc_is_dp_signal(pipe_ctx->stream->signal) ||
diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
index dfb2082..6b2f2f1 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
@@ -1107,6 +1107,11 @@ struct stream_encoder *dcn20_stream_encoder_create(
if (!enc1)
return NULL;
+ if (ASICREV_IS_NAVI14_M(ctx->asic_id.hw_internal_rev)) {
+ if (eng_id >= ENGINE_ID_DIGD)
+ eng_id++;
+ }
+
dcn20_stream_encoder_construct(enc1, ctx, ctx->dc_bios, eng_id,
&stream_enc_regs[eng_id],
&se_shift, &se_mask);
diff --git a/drivers/gpu/drm/amd/powerplay/navi10_ppt.c b/drivers/gpu/drm/amd/powerplay/navi10_ppt.c
index 0b46140..3ec5a10 100644
--- a/drivers/gpu/drm/amd/powerplay/navi10_ppt.c
+++ b/drivers/gpu/drm/amd/powerplay/navi10_ppt.c
@@ -205,7 +205,7 @@ static struct smu_11_0_cmn2aisc_mapping navi10_workload_map[PP_SMC_POWER_PROFILE
WORKLOAD_MAP(PP_SMC_POWER_PROFILE_POWERSAVING, WORKLOAD_PPLIB_POWER_SAVING_BIT),
WORKLOAD_MAP(PP_SMC_POWER_PROFILE_VIDEO, WORKLOAD_PPLIB_VIDEO_BIT),
WORKLOAD_MAP(PP_SMC_POWER_PROFILE_VR, WORKLOAD_PPLIB_VR_BIT),
- WORKLOAD_MAP(PP_SMC_POWER_PROFILE_COMPUTE, WORKLOAD_PPLIB_CUSTOM_BIT),
+ WORKLOAD_MAP(PP_SMC_POWER_PROFILE_COMPUTE, WORKLOAD_PPLIB_COMPUTE_BIT),
WORKLOAD_MAP(PP_SMC_POWER_PROFILE_CUSTOM, WORKLOAD_PPLIB_CUSTOM_BIT),
};
diff --git a/drivers/gpu/drm/amd/powerplay/vega20_ppt.c b/drivers/gpu/drm/amd/powerplay/vega20_ppt.c
index bbd8ebd5..92c393f 100644
--- a/drivers/gpu/drm/amd/powerplay/vega20_ppt.c
+++ b/drivers/gpu/drm/amd/powerplay/vega20_ppt.c
@@ -219,7 +219,7 @@ static struct smu_11_0_cmn2aisc_mapping vega20_workload_map[PP_SMC_POWER_PROFILE
WORKLOAD_MAP(PP_SMC_POWER_PROFILE_POWERSAVING, WORKLOAD_PPLIB_POWER_SAVING_BIT),
WORKLOAD_MAP(PP_SMC_POWER_PROFILE_VIDEO, WORKLOAD_PPLIB_VIDEO_BIT),
WORKLOAD_MAP(PP_SMC_POWER_PROFILE_VR, WORKLOAD_PPLIB_VR_BIT),
- WORKLOAD_MAP(PP_SMC_POWER_PROFILE_COMPUTE, WORKLOAD_PPLIB_CUSTOM_BIT),
+ WORKLOAD_MAP(PP_SMC_POWER_PROFILE_COMPUTE, WORKLOAD_PPLIB_COMPUTE_BIT),
WORKLOAD_MAP(PP_SMC_POWER_PROFILE_CUSTOM, WORKLOAD_PPLIB_CUSTOM_BIT),
};
diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c
index 3ef2ac5..2dd2cd8 100644
--- a/drivers/gpu/drm/drm_atomic_helper.c
+++ b/drivers/gpu/drm/drm_atomic_helper.c
@@ -1581,8 +1581,11 @@ static void commit_tail(struct drm_atomic_state *old_state)
{
struct drm_device *dev = old_state->dev;
const struct drm_mode_config_helper_funcs *funcs;
+ struct drm_crtc_state *new_crtc_state;
+ struct drm_crtc *crtc;
ktime_t start;
s64 commit_time_ms;
+ unsigned int i, new_self_refresh_mask = 0;
funcs = dev->mode_config.helper_private;
@@ -1602,6 +1605,15 @@ static void commit_tail(struct drm_atomic_state *old_state)
drm_atomic_helper_wait_for_dependencies(old_state);
+ /*
+ * We cannot safely access new_crtc_state after
+ * drm_atomic_helper_commit_hw_done() so figure out which crtc's have
+ * self-refresh active beforehand:
+ */
+ for_each_new_crtc_in_state(old_state, crtc, new_crtc_state, i)
+ if (new_crtc_state->self_refresh_active)
+ new_self_refresh_mask |= BIT(i);
+
if (funcs && funcs->atomic_commit_tail)
funcs->atomic_commit_tail(old_state);
else
@@ -1610,7 +1622,8 @@ static void commit_tail(struct drm_atomic_state *old_state)
commit_time_ms = ktime_ms_delta(ktime_get(), start);
if (commit_time_ms > 0)
drm_self_refresh_helper_update_avg_times(old_state,
- (unsigned long)commit_time_ms);
+ (unsigned long)commit_time_ms,
+ new_self_refresh_mask);
drm_atomic_helper_commit_cleanup_done(old_state);
diff --git a/drivers/gpu/drm/drm_self_refresh_helper.c b/drivers/gpu/drm/drm_self_refresh_helper.c
index 68f4765..dd33fec 100644
--- a/drivers/gpu/drm/drm_self_refresh_helper.c
+++ b/drivers/gpu/drm/drm_self_refresh_helper.c
@@ -133,29 +133,33 @@ static void drm_self_refresh_helper_entry_work(struct work_struct *work)
* drm_self_refresh_helper_update_avg_times - Updates a crtc's SR time averages
* @state: the state which has just been applied to hardware
* @commit_time_ms: the amount of time in ms that this commit took to complete
+ * @new_self_refresh_mask: bitmask of crtc's that have self_refresh_active in
+ * new state
*
* Called after &drm_mode_config_funcs.atomic_commit_tail, this function will
* update the average entry/exit self refresh times on self refresh transitions.
* These averages will be used when calculating how long to delay before
* entering self refresh mode after activity.
*/
-void drm_self_refresh_helper_update_avg_times(struct drm_atomic_state *state,
- unsigned int commit_time_ms)
+void
+drm_self_refresh_helper_update_avg_times(struct drm_atomic_state *state,
+ unsigned int commit_time_ms,
+ unsigned int new_self_refresh_mask)
{
struct drm_crtc *crtc;
- struct drm_crtc_state *old_crtc_state, *new_crtc_state;
+ struct drm_crtc_state *old_crtc_state;
int i;
- for_each_oldnew_crtc_in_state(state, crtc, old_crtc_state,
- new_crtc_state, i) {
+ for_each_old_crtc_in_state(state, crtc, old_crtc_state, i) {
+ bool new_self_refresh_active = new_self_refresh_mask & BIT(i);
struct drm_self_refresh_data *sr_data = crtc->self_refresh_data;
struct ewma_psr_time *time;
if (old_crtc_state->self_refresh_active ==
- new_crtc_state->self_refresh_active)
+ new_self_refresh_active)
continue;
- if (new_crtc_state->self_refresh_active)
+ if (new_self_refresh_active)
time = &sr_data->entry_avg_ms;
else
time = &sr_data->exit_avg_ms;
diff --git a/drivers/gpu/drm/i915/display/intel_crt.c b/drivers/gpu/drm/i915/display/intel_crt.c
index e6e8d4a..0a08354 100644
--- a/drivers/gpu/drm/i915/display/intel_crt.c
+++ b/drivers/gpu/drm/i915/display/intel_crt.c
@@ -864,6 +864,13 @@ intel_crt_detect(struct drm_connector *connector,
out:
intel_display_power_put(dev_priv, intel_encoder->power_domain, wakeref);
+
+ /*
+ * Make sure the refs for power wells enabled during detect are
+ * dropped to avoid a new detect cycle triggered by HPD polling.
+ */
+ intel_display_power_flush_work(dev_priv);
+
return status;
}
diff --git a/drivers/gpu/drm/i915/display/intel_display_power.c b/drivers/gpu/drm/i915/display/intel_display_power.c
index 12099760..c002f23 100644
--- a/drivers/gpu/drm/i915/display/intel_display_power.c
+++ b/drivers/gpu/drm/i915/display/intel_display_power.c
@@ -4896,6 +4896,9 @@ void intel_power_domains_init_hw(struct drm_i915_private *i915, bool resume)
power_domains->initializing = true;
+ /* Must happen before power domain init on VLV/CHV */
+ intel_update_rawclk(i915);
+
if (INTEL_GEN(i915) >= 11) {
icl_display_core_init(i915, resume);
} else if (IS_CANNONLAKE(i915)) {
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 57e9f0b..9b15ac4 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -1256,6 +1256,9 @@ static u32 skl_get_aux_send_ctl(struct intel_dp *intel_dp,
u32 unused)
{
struct intel_digital_port *intel_dig_port = dp_to_dig_port(intel_dp);
+ struct drm_i915_private *i915 =
+ to_i915(intel_dig_port->base.base.dev);
+ enum phy phy = intel_port_to_phy(i915, intel_dig_port->base.port);
u32 ret;
ret = DP_AUX_CH_CTL_SEND_BUSY |
@@ -1268,7 +1271,8 @@ static u32 skl_get_aux_send_ctl(struct intel_dp *intel_dp,
DP_AUX_CH_CTL_FW_SYNC_PULSE_SKL(32) |
DP_AUX_CH_CTL_SYNC_PULSE_SKL(32);
- if (intel_dig_port->tc_mode == TC_PORT_TBT_ALT)
+ if (intel_phy_is_tc(i915, phy) &&
+ intel_dig_port->tc_mode == TC_PORT_TBT_ALT)
ret |= DP_AUX_CH_CTL_TBT_IO;
return ret;
@@ -5436,6 +5440,12 @@ intel_dp_detect(struct drm_connector *connector,
if (status != connector_status_connected && !intel_dp->is_mst)
intel_dp_unset_edid(intel_dp);
+ /*
+ * Make sure the refs for power wells enabled during detect are
+ * dropped to avoid a new detect cycle triggered by HPD polling.
+ */
+ intel_display_power_flush_work(dev_priv);
+
return status;
}
diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.c b/drivers/gpu/drm/i915/display/intel_hdmi.c
index e02f0fa..b030f7a 100644
--- a/drivers/gpu/drm/i915/display/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/display/intel_hdmi.c
@@ -2565,6 +2565,12 @@ intel_hdmi_detect(struct drm_connector *connector, bool force)
if (status != connector_status_connected)
cec_notifier_phys_addr_invalidate(intel_hdmi->cec_notifier);
+ /*
+ * Make sure the refs for power wells enabled during detect are
+ * dropped to avoid a new detect cycle triggered by HPD polling.
+ */
+ intel_display_power_flush_work(dev_priv);
+
return status;
}
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_context.c b/drivers/gpu/drm/i915/gem/i915_gem_context.c
index 1cdfe05..e41fd94 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_context.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_context.c
@@ -319,6 +319,8 @@ static void i915_gem_context_free(struct i915_gem_context *ctx)
free_engines(rcu_access_pointer(ctx->engines));
mutex_destroy(&ctx->engines_mutex);
+ kfree(ctx->jump_whitelist);
+
if (ctx->timeline)
intel_timeline_put(ctx->timeline);
@@ -441,6 +443,9 @@ __create_context(struct drm_i915_private *i915)
for (i = 0; i < ARRAY_SIZE(ctx->hang_timestamp); i++)
ctx->hang_timestamp[i] = jiffies - CONTEXT_FAST_HANG_JIFFIES;
+ ctx->jump_whitelist = NULL;
+ ctx->jump_whitelist_cmds = 0;
+
return ctx;
err_free:
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_context_types.h b/drivers/gpu/drm/i915/gem/i915_gem_context_types.h
index 260d59c..00537b9 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_context_types.h
+++ b/drivers/gpu/drm/i915/gem/i915_gem_context_types.h
@@ -192,6 +192,13 @@ struct i915_gem_context {
* per vm, which may be one per context or shared with the global GTT)
*/
struct radix_tree_root handles_vma;
+
+ /** jump_whitelist: Bit array for tracking cmds during cmdparsing
+ * Guarded by struct_mutex
+ */
+ unsigned long *jump_whitelist;
+ /** jump_whitelist_cmds: No of cmd slots available */
+ u32 jump_whitelist_cmds;
};
#endif /* __I915_GEM_CONTEXT_TYPES_H__ */
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
index b5f6937..e635e1e 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c
@@ -296,7 +296,9 @@ static inline u64 gen8_noncanonical_addr(u64 address)
static inline bool eb_use_cmdparser(const struct i915_execbuffer *eb)
{
- return intel_engine_needs_cmd_parser(eb->engine) && eb->batch_len;
+ return intel_engine_requires_cmd_parser(eb->engine) ||
+ (intel_engine_using_cmd_parser(eb->engine) &&
+ eb->args->batch_len);
}
static int eb_create(struct i915_execbuffer *eb)
@@ -1955,40 +1957,94 @@ static int i915_reset_gen7_sol_offsets(struct i915_request *rq)
return 0;
}
-static struct i915_vma *eb_parse(struct i915_execbuffer *eb, bool is_master)
+static struct i915_vma *
+shadow_batch_pin(struct i915_execbuffer *eb, struct drm_i915_gem_object *obj)
+{
+ struct drm_i915_private *dev_priv = eb->i915;
+ struct i915_vma * const vma = *eb->vma;
+ struct i915_address_space *vm;
+ u64 flags;
+
+ /*
+ * PPGTT backed shadow buffers must be mapped RO, to prevent
+ * post-scan tampering
+ */
+ if (CMDPARSER_USES_GGTT(dev_priv)) {
+ flags = PIN_GLOBAL;
+ vm = &dev_priv->ggtt.vm;
+ } else if (vma->vm->has_read_only) {
+ flags = PIN_USER;
+ vm = vma->vm;
+ i915_gem_object_set_readonly(obj);
+ } else {
+ DRM_DEBUG("Cannot prevent post-scan tampering without RO capable vm\n");
+ return ERR_PTR(-EINVAL);
+ }
+
+ return i915_gem_object_pin(obj, vm, NULL, 0, 0, flags);
+}
+
+static struct i915_vma *eb_parse(struct i915_execbuffer *eb)
{
struct intel_engine_pool_node *pool;
struct i915_vma *vma;
+ u64 batch_start;
+ u64 shadow_batch_start;
int err;
pool = intel_engine_pool_get(&eb->engine->pool, eb->batch_len);
if (IS_ERR(pool))
return ERR_CAST(pool);
- err = intel_engine_cmd_parser(eb->engine,
+ vma = shadow_batch_pin(eb, pool->obj);
+ if (IS_ERR(vma))
+ goto err;
+
+ batch_start = gen8_canonical_addr(eb->batch->node.start) +
+ eb->batch_start_offset;
+
+ shadow_batch_start = gen8_canonical_addr(vma->node.start);
+
+ err = intel_engine_cmd_parser(eb->gem_context,
+ eb->engine,
eb->batch->obj,
- pool->obj,
+ batch_start,
eb->batch_start_offset,
eb->batch_len,
- is_master);
+ pool->obj,
+ shadow_batch_start);
+
if (err) {
- if (err == -EACCES) /* unhandled chained batch */
+ i915_vma_unpin(vma);
+
+ /*
+ * Unsafe GGTT-backed buffers can still be submitted safely
+ * as non-secure.
+ * For PPGTT backing however, we have no choice but to forcibly
+ * reject unsafe buffers
+ */
+ if (CMDPARSER_USES_GGTT(eb->i915) && (err == -EACCES))
+ /* Execute original buffer non-secure */
vma = NULL;
else
vma = ERR_PTR(err);
goto err;
}
- vma = i915_gem_object_ggtt_pin(pool->obj, NULL, 0, 0, 0);
- if (IS_ERR(vma))
- goto err;
-
eb->vma[eb->buffer_count] = i915_vma_get(vma);
eb->flags[eb->buffer_count] =
__EXEC_OBJECT_HAS_PIN | __EXEC_OBJECT_HAS_REF;
vma->exec_flags = &eb->flags[eb->buffer_count];
eb->buffer_count++;
+ eb->batch_start_offset = 0;
+ eb->batch = vma;
+
+ if (CMDPARSER_USES_GGTT(eb->i915))
+ eb->batch_flags |= I915_DISPATCH_SECURE;
+
+ /* eb->batch_len unchanged */
+
vma->private = pool;
return vma;
@@ -2421,6 +2477,7 @@ i915_gem_do_execbuffer(struct drm_device *dev,
struct drm_i915_gem_exec_object2 *exec,
struct drm_syncobj **fences)
{
+ struct drm_i915_private *i915 = to_i915(dev);
struct i915_execbuffer eb;
struct dma_fence *in_fence = NULL;
struct dma_fence *exec_fence = NULL;
@@ -2432,7 +2489,7 @@ i915_gem_do_execbuffer(struct drm_device *dev,
BUILD_BUG_ON(__EXEC_OBJECT_INTERNAL_FLAGS &
~__EXEC_OBJECT_UNKNOWN_FLAGS);
- eb.i915 = to_i915(dev);
+ eb.i915 = i915;
eb.file = file;
eb.args = args;
if (DBG_FORCE_RELOC || !(args->flags & I915_EXEC_NO_RELOC))
@@ -2452,8 +2509,15 @@ i915_gem_do_execbuffer(struct drm_device *dev,
eb.batch_flags = 0;
if (args->flags & I915_EXEC_SECURE) {
+ if (INTEL_GEN(i915) >= 11)
+ return -ENODEV;
+
+ /* Return -EPERM to trigger fallback code on old binaries. */
+ if (!HAS_SECURE_BATCHES(i915))
+ return -EPERM;
+
if (!drm_is_current_master(file) || !capable(CAP_SYS_ADMIN))
- return -EPERM;
+ return -EPERM;
eb.batch_flags |= I915_DISPATCH_SECURE;
}
@@ -2530,34 +2594,19 @@ i915_gem_do_execbuffer(struct drm_device *dev,
goto err_vma;
}
+ if (eb.batch_len == 0)
+ eb.batch_len = eb.batch->size - eb.batch_start_offset;
+
if (eb_use_cmdparser(&eb)) {
struct i915_vma *vma;
- vma = eb_parse(&eb, drm_is_current_master(file));
+ vma = eb_parse(&eb);
if (IS_ERR(vma)) {
err = PTR_ERR(vma);
goto err_vma;
}
-
- if (vma) {
- /*
- * Batch parsed and accepted:
- *
- * Set the DISPATCH_SECURE bit to remove the NON_SECURE
- * bit from MI_BATCH_BUFFER_START commands issued in
- * the dispatch_execbuffer implementations. We
- * specifically don't want that set on batches the
- * command parser has accepted.
- */
- eb.batch_flags |= I915_DISPATCH_SECURE;
- eb.batch_start_offset = 0;
- eb.batch = vma;
- }
}
- if (eb.batch_len == 0)
- eb.batch_len = eb.batch->size - eb.batch_start_offset;
-
/*
* snb/ivb/vlv conflate the "batch in ppgtt" bit with the "non-secure
* batch" bit. Hence we need to pin secure batches into the global gtt.
diff --git a/drivers/gpu/drm/i915/gt/intel_engine_types.h b/drivers/gpu/drm/i915/gt/intel_engine_types.h
index a82cea9..9dd8c29 100644
--- a/drivers/gpu/drm/i915/gt/intel_engine_types.h
+++ b/drivers/gpu/drm/i915/gt/intel_engine_types.h
@@ -475,12 +475,13 @@ struct intel_engine_cs {
struct intel_engine_hangcheck hangcheck;
-#define I915_ENGINE_NEEDS_CMD_PARSER BIT(0)
+#define I915_ENGINE_USING_CMD_PARSER BIT(0)
#define I915_ENGINE_SUPPORTS_STATS BIT(1)
#define I915_ENGINE_HAS_PREEMPTION BIT(2)
#define I915_ENGINE_HAS_SEMAPHORES BIT(3)
#define I915_ENGINE_NEEDS_BREADCRUMB_TASKLET BIT(4)
#define I915_ENGINE_IS_VIRTUAL BIT(5)
+#define I915_ENGINE_REQUIRES_CMD_PARSER BIT(7)
unsigned int flags;
/*
@@ -541,9 +542,15 @@ struct intel_engine_cs {
};
static inline bool
-intel_engine_needs_cmd_parser(const struct intel_engine_cs *engine)
+intel_engine_using_cmd_parser(const struct intel_engine_cs *engine)
{
- return engine->flags & I915_ENGINE_NEEDS_CMD_PARSER;
+ return engine->flags & I915_ENGINE_USING_CMD_PARSER;
+}
+
+static inline bool
+intel_engine_requires_cmd_parser(const struct intel_engine_cs *engine)
+{
+ return engine->flags & I915_ENGINE_REQUIRES_CMD_PARSER;
}
static inline bool
diff --git a/drivers/gpu/drm/i915/gt/intel_gt_pm.c b/drivers/gpu/drm/i915/gt/intel_gt_pm.c
index 1363e06..fac75af 100644
--- a/drivers/gpu/drm/i915/gt/intel_gt_pm.c
+++ b/drivers/gpu/drm/i915/gt/intel_gt_pm.c
@@ -38,6 +38,9 @@ static int __gt_unpark(struct intel_wakeref *wf)
gt->awake = intel_display_power_get(i915, POWER_DOMAIN_GT_IRQ);
GEM_BUG_ON(!gt->awake);
+ if (NEEDS_RC6_CTX_CORRUPTION_WA(i915))
+ intel_uncore_forcewake_get(&i915->uncore, FORCEWAKE_ALL);
+
intel_enable_gt_powersave(i915);
i915_update_gfx_val(i915);
@@ -67,6 +70,11 @@ static int __gt_park(struct intel_wakeref *wf)
if (INTEL_GEN(i915) >= 6)
gen6_rps_idle(i915);
+ if (NEEDS_RC6_CTX_CORRUPTION_WA(i915)) {
+ i915_rc6_ctx_wa_check(i915);
+ intel_uncore_forcewake_put(&i915->uncore, FORCEWAKE_ALL);
+ }
+
/* Everything switched off, flush any residual interrupt just in case */
intel_synchronize_irq(i915);
diff --git a/drivers/gpu/drm/i915/gt/intel_mocs.c b/drivers/gpu/drm/i915/gt/intel_mocs.c
index 728704b..cea184a 100644
--- a/drivers/gpu/drm/i915/gt/intel_mocs.c
+++ b/drivers/gpu/drm/i915/gt/intel_mocs.c
@@ -199,14 +199,6 @@ static const struct drm_i915_mocs_entry broxton_mocs_table[] = {
MOCS_ENTRY(15, \
LE_3_WB | LE_TC_1_LLC | LE_LRUM(2) | LE_AOM(1), \
L3_3_WB), \
- /* Bypass LLC - Uncached (EHL+) */ \
- MOCS_ENTRY(16, \
- LE_1_UC | LE_TC_1_LLC | LE_SCF(1), \
- L3_1_UC), \
- /* Bypass LLC - L3 (Read-Only) (EHL+) */ \
- MOCS_ENTRY(17, \
- LE_1_UC | LE_TC_1_LLC | LE_SCF(1), \
- L3_3_WB), \
/* Self-Snoop - L3 + LLC */ \
MOCS_ENTRY(18, \
LE_3_WB | LE_TC_1_LLC | LE_LRUM(3) | LE_SSE(3), \
@@ -270,7 +262,7 @@ static const struct drm_i915_mocs_entry tigerlake_mocs_table[] = {
L3_1_UC),
/* HW Special Case (Displayable) */
MOCS_ENTRY(61,
- LE_1_UC | LE_TC_1_LLC | LE_SCF(1),
+ LE_1_UC | LE_TC_1_LLC,
L3_3_WB),
};
diff --git a/drivers/gpu/drm/i915/gvt/dmabuf.c b/drivers/gpu/drm/i915/gvt/dmabuf.c
index 13044c0..4bfaefd 100644
--- a/drivers/gpu/drm/i915/gvt/dmabuf.c
+++ b/drivers/gpu/drm/i915/gvt/dmabuf.c
@@ -498,8 +498,6 @@ int intel_vgpu_get_dmabuf(struct intel_vgpu *vgpu, unsigned int dmabuf_id)
goto out_free_gem;
}
- i915_gem_object_put(obj);
-
ret = dma_buf_fd(dmabuf, DRM_CLOEXEC | DRM_RDWR);
if (ret < 0) {
gvt_vgpu_err("create dma-buf fd failed ret:%d\n", ret);
@@ -524,6 +522,8 @@ int intel_vgpu_get_dmabuf(struct intel_vgpu *vgpu, unsigned int dmabuf_id)
file_count(dmabuf->file),
kref_read(&obj->base.refcount));
+ i915_gem_object_put(obj);
+
return dmabuf_fd;
out_free_dmabuf:
diff --git a/drivers/gpu/drm/i915/i915_cmd_parser.c b/drivers/gpu/drm/i915/i915_cmd_parser.c
index 2455510..f24096e 100644
--- a/drivers/gpu/drm/i915/i915_cmd_parser.c
+++ b/drivers/gpu/drm/i915/i915_cmd_parser.c
@@ -53,13 +53,11 @@
* granting userspace undue privileges. There are three categories of privilege.
*
* First, commands which are explicitly defined as privileged or which should
- * only be used by the kernel driver. The parser generally rejects such
- * commands, though it may allow some from the drm master process.
+ * only be used by the kernel driver. The parser rejects such commands
*
* Second, commands which access registers. To support correct/enhanced
* userspace functionality, particularly certain OpenGL extensions, the parser
- * provides a whitelist of registers which userspace may safely access (for both
- * normal and drm master processes).
+ * provides a whitelist of registers which userspace may safely access
*
* Third, commands which access privileged memory (i.e. GGTT, HWS page, etc).
* The parser always rejects such commands.
@@ -84,9 +82,9 @@
* in the per-engine command tables.
*
* Other command table entries map fairly directly to high level categories
- * mentioned above: rejected, master-only, register whitelist. The parser
- * implements a number of checks, including the privileged memory checks, via a
- * general bitmasking mechanism.
+ * mentioned above: rejected, register whitelist. The parser implements a number
+ * of checks, including the privileged memory checks, via a general bitmasking
+ * mechanism.
*/
/*
@@ -104,8 +102,6 @@ struct drm_i915_cmd_descriptor {
* CMD_DESC_REJECT: The command is never allowed
* CMD_DESC_REGISTER: The command should be checked against the
* register whitelist for the appropriate ring
- * CMD_DESC_MASTER: The command is allowed if the submitting process
- * is the DRM master
*/
u32 flags;
#define CMD_DESC_FIXED (1<<0)
@@ -113,7 +109,6 @@ struct drm_i915_cmd_descriptor {
#define CMD_DESC_REJECT (1<<2)
#define CMD_DESC_REGISTER (1<<3)
#define CMD_DESC_BITMASK (1<<4)
-#define CMD_DESC_MASTER (1<<5)
/*
* The command's unique identification bits and the bitmask to get them.
@@ -194,7 +189,7 @@ struct drm_i915_cmd_table {
#define CMD(op, opm, f, lm, fl, ...) \
{ \
.flags = (fl) | ((f) ? CMD_DESC_FIXED : 0), \
- .cmd = { (op), ~0u << (opm) }, \
+ .cmd = { (op & ~0u << (opm)), ~0u << (opm) }, \
.length = { (lm) }, \
__VA_ARGS__ \
}
@@ -209,14 +204,13 @@ struct drm_i915_cmd_table {
#define R CMD_DESC_REJECT
#define W CMD_DESC_REGISTER
#define B CMD_DESC_BITMASK
-#define M CMD_DESC_MASTER
/* Command Mask Fixed Len Action
---------------------------------------------------------- */
-static const struct drm_i915_cmd_descriptor common_cmds[] = {
+static const struct drm_i915_cmd_descriptor gen7_common_cmds[] = {
CMD( MI_NOOP, SMI, F, 1, S ),
CMD( MI_USER_INTERRUPT, SMI, F, 1, R ),
- CMD( MI_WAIT_FOR_EVENT, SMI, F, 1, M ),
+ CMD( MI_WAIT_FOR_EVENT, SMI, F, 1, R ),
CMD( MI_ARB_CHECK, SMI, F, 1, S ),
CMD( MI_REPORT_HEAD, SMI, F, 1, S ),
CMD( MI_SUSPEND_FLUSH, SMI, F, 1, S ),
@@ -246,7 +240,7 @@ static const struct drm_i915_cmd_descriptor common_cmds[] = {
CMD( MI_BATCH_BUFFER_START, SMI, !F, 0xFF, S ),
};
-static const struct drm_i915_cmd_descriptor render_cmds[] = {
+static const struct drm_i915_cmd_descriptor gen7_render_cmds[] = {
CMD( MI_FLUSH, SMI, F, 1, S ),
CMD( MI_ARB_ON_OFF, SMI, F, 1, R ),
CMD( MI_PREDICATE, SMI, F, 1, S ),
@@ -313,7 +307,7 @@ static const struct drm_i915_cmd_descriptor hsw_render_cmds[] = {
CMD( MI_URB_ATOMIC_ALLOC, SMI, F, 1, S ),
CMD( MI_SET_APPID, SMI, F, 1, S ),
CMD( MI_RS_CONTEXT, SMI, F, 1, S ),
- CMD( MI_LOAD_SCAN_LINES_INCL, SMI, !F, 0x3F, M ),
+ CMD( MI_LOAD_SCAN_LINES_INCL, SMI, !F, 0x3F, R ),
CMD( MI_LOAD_SCAN_LINES_EXCL, SMI, !F, 0x3F, R ),
CMD( MI_LOAD_REGISTER_REG, SMI, !F, 0xFF, W,
.reg = { .offset = 1, .mask = 0x007FFFFC, .step = 1 } ),
@@ -330,7 +324,7 @@ static const struct drm_i915_cmd_descriptor hsw_render_cmds[] = {
CMD( GFX_OP_3DSTATE_BINDING_TABLE_EDIT_PS, S3D, !F, 0x1FF, S ),
};
-static const struct drm_i915_cmd_descriptor video_cmds[] = {
+static const struct drm_i915_cmd_descriptor gen7_video_cmds[] = {
CMD( MI_ARB_ON_OFF, SMI, F, 1, R ),
CMD( MI_SET_APPID, SMI, F, 1, S ),
CMD( MI_STORE_DWORD_IMM, SMI, !F, 0xFF, B,
@@ -374,7 +368,7 @@ static const struct drm_i915_cmd_descriptor video_cmds[] = {
CMD( MFX_WAIT, SMFX, F, 1, S ),
};
-static const struct drm_i915_cmd_descriptor vecs_cmds[] = {
+static const struct drm_i915_cmd_descriptor gen7_vecs_cmds[] = {
CMD( MI_ARB_ON_OFF, SMI, F, 1, R ),
CMD( MI_SET_APPID, SMI, F, 1, S ),
CMD( MI_STORE_DWORD_IMM, SMI, !F, 0xFF, B,
@@ -412,7 +406,7 @@ static const struct drm_i915_cmd_descriptor vecs_cmds[] = {
}}, ),
};
-static const struct drm_i915_cmd_descriptor blt_cmds[] = {
+static const struct drm_i915_cmd_descriptor gen7_blt_cmds[] = {
CMD( MI_DISPLAY_FLIP, SMI, !F, 0xFF, R ),
CMD( MI_STORE_DWORD_IMM, SMI, !F, 0x3FF, B,
.bits = {{
@@ -446,10 +440,64 @@ static const struct drm_i915_cmd_descriptor blt_cmds[] = {
};
static const struct drm_i915_cmd_descriptor hsw_blt_cmds[] = {
- CMD( MI_LOAD_SCAN_LINES_INCL, SMI, !F, 0x3F, M ),
+ CMD( MI_LOAD_SCAN_LINES_INCL, SMI, !F, 0x3F, R ),
CMD( MI_LOAD_SCAN_LINES_EXCL, SMI, !F, 0x3F, R ),
};
+/*
+ * For Gen9 we can still rely on the h/w to enforce cmd security, and only
+ * need to re-enforce the register access checks. We therefore only need to
+ * teach the cmdparser how to find the end of each command, and identify
+ * register accesses. The table doesn't need to reject any commands, and so
+ * the only commands listed here are:
+ * 1) Those that touch registers
+ * 2) Those that do not have the default 8-bit length
+ *
+ * Note that the default MI length mask chosen for this table is 0xFF, not
+ * the 0x3F used on older devices. This is because the vast majority of MI
+ * cmds on Gen9 use a standard 8-bit Length field.
+ * All the Gen9 blitter instructions are standard 0xFF length mask, and
+ * none allow access to non-general registers, so in fact no BLT cmds are
+ * included in the table at all.
+ *
+ */
+static const struct drm_i915_cmd_descriptor gen9_blt_cmds[] = {
+ CMD( MI_NOOP, SMI, F, 1, S ),
+ CMD( MI_USER_INTERRUPT, SMI, F, 1, S ),
+ CMD( MI_WAIT_FOR_EVENT, SMI, F, 1, S ),
+ CMD( MI_FLUSH, SMI, F, 1, S ),
+ CMD( MI_ARB_CHECK, SMI, F, 1, S ),
+ CMD( MI_REPORT_HEAD, SMI, F, 1, S ),
+ CMD( MI_ARB_ON_OFF, SMI, F, 1, S ),
+ CMD( MI_SUSPEND_FLUSH, SMI, F, 1, S ),
+ CMD( MI_LOAD_SCAN_LINES_INCL, SMI, !F, 0x3F, S ),
+ CMD( MI_LOAD_SCAN_LINES_EXCL, SMI, !F, 0x3F, S ),
+ CMD( MI_STORE_DWORD_IMM, SMI, !F, 0x3FF, S ),
+ CMD( MI_LOAD_REGISTER_IMM(1), SMI, !F, 0xFF, W,
+ .reg = { .offset = 1, .mask = 0x007FFFFC, .step = 2 } ),
+ CMD( MI_UPDATE_GTT, SMI, !F, 0x3FF, S ),
+ CMD( MI_STORE_REGISTER_MEM_GEN8, SMI, F, 4, W,
+ .reg = { .offset = 1, .mask = 0x007FFFFC } ),
+ CMD( MI_FLUSH_DW, SMI, !F, 0x3F, S ),
+ CMD( MI_LOAD_REGISTER_MEM_GEN8, SMI, F, 4, W,
+ .reg = { .offset = 1, .mask = 0x007FFFFC } ),
+ CMD( MI_LOAD_REGISTER_REG, SMI, !F, 0xFF, W,
+ .reg = { .offset = 1, .mask = 0x007FFFFC, .step = 1 } ),
+
+ /*
+ * We allow BB_START but apply further checks. We just sanitize the
+ * basic fields here.
+ */
+#define MI_BB_START_OPERAND_MASK GENMASK(SMI-1, 0)
+#define MI_BB_START_OPERAND_EXPECT (MI_BATCH_PPGTT_HSW | 1)
+ CMD( MI_BATCH_BUFFER_START_GEN8, SMI, !F, 0xFF, B,
+ .bits = {{
+ .offset = 0,
+ .mask = MI_BB_START_OPERAND_MASK,
+ .expected = MI_BB_START_OPERAND_EXPECT,
+ }}, ),
+};
+
static const struct drm_i915_cmd_descriptor noop_desc =
CMD(MI_NOOP, SMI, F, 1, S);
@@ -463,40 +511,44 @@ static const struct drm_i915_cmd_descriptor noop_desc =
#undef R
#undef W
#undef B
-#undef M
-static const struct drm_i915_cmd_table gen7_render_cmds[] = {
- { common_cmds, ARRAY_SIZE(common_cmds) },
- { render_cmds, ARRAY_SIZE(render_cmds) },
+static const struct drm_i915_cmd_table gen7_render_cmd_table[] = {
+ { gen7_common_cmds, ARRAY_SIZE(gen7_common_cmds) },
+ { gen7_render_cmds, ARRAY_SIZE(gen7_render_cmds) },
};
-static const struct drm_i915_cmd_table hsw_render_ring_cmds[] = {
- { common_cmds, ARRAY_SIZE(common_cmds) },
- { render_cmds, ARRAY_SIZE(render_cmds) },
+static const struct drm_i915_cmd_table hsw_render_ring_cmd_table[] = {
+ { gen7_common_cmds, ARRAY_SIZE(gen7_common_cmds) },
+ { gen7_render_cmds, ARRAY_SIZE(gen7_render_cmds) },
{ hsw_render_cmds, ARRAY_SIZE(hsw_render_cmds) },
};
-static const struct drm_i915_cmd_table gen7_video_cmds[] = {
- { common_cmds, ARRAY_SIZE(common_cmds) },
- { video_cmds, ARRAY_SIZE(video_cmds) },
+static const struct drm_i915_cmd_table gen7_video_cmd_table[] = {
+ { gen7_common_cmds, ARRAY_SIZE(gen7_common_cmds) },
+ { gen7_video_cmds, ARRAY_SIZE(gen7_video_cmds) },
};
-static const struct drm_i915_cmd_table hsw_vebox_cmds[] = {
- { common_cmds, ARRAY_SIZE(common_cmds) },
- { vecs_cmds, ARRAY_SIZE(vecs_cmds) },
+static const struct drm_i915_cmd_table hsw_vebox_cmd_table[] = {
+ { gen7_common_cmds, ARRAY_SIZE(gen7_common_cmds) },
+ { gen7_vecs_cmds, ARRAY_SIZE(gen7_vecs_cmds) },
};
-static const struct drm_i915_cmd_table gen7_blt_cmds[] = {
- { common_cmds, ARRAY_SIZE(common_cmds) },
- { blt_cmds, ARRAY_SIZE(blt_cmds) },
+static const struct drm_i915_cmd_table gen7_blt_cmd_table[] = {
+ { gen7_common_cmds, ARRAY_SIZE(gen7_common_cmds) },
+ { gen7_blt_cmds, ARRAY_SIZE(gen7_blt_cmds) },
};
-static const struct drm_i915_cmd_table hsw_blt_ring_cmds[] = {
- { common_cmds, ARRAY_SIZE(common_cmds) },
- { blt_cmds, ARRAY_SIZE(blt_cmds) },
+static const struct drm_i915_cmd_table hsw_blt_ring_cmd_table[] = {
+ { gen7_common_cmds, ARRAY_SIZE(gen7_common_cmds) },
+ { gen7_blt_cmds, ARRAY_SIZE(gen7_blt_cmds) },
{ hsw_blt_cmds, ARRAY_SIZE(hsw_blt_cmds) },
};
+static const struct drm_i915_cmd_table gen9_blt_cmd_table[] = {
+ { gen9_blt_cmds, ARRAY_SIZE(gen9_blt_cmds) },
+};
+
+
/*
* Register whitelists, sorted by increasing register offset.
*/
@@ -612,17 +664,27 @@ static const struct drm_i915_reg_descriptor gen7_blt_regs[] = {
REG64_IDX(RING_TIMESTAMP, BLT_RING_BASE),
};
-static const struct drm_i915_reg_descriptor ivb_master_regs[] = {
- REG32(FORCEWAKE_MT),
- REG32(DERRMR),
- REG32(GEN7_PIPE_DE_LOAD_SL(PIPE_A)),
- REG32(GEN7_PIPE_DE_LOAD_SL(PIPE_B)),
- REG32(GEN7_PIPE_DE_LOAD_SL(PIPE_C)),
-};
-
-static const struct drm_i915_reg_descriptor hsw_master_regs[] = {
- REG32(FORCEWAKE_MT),
- REG32(DERRMR),
+static const struct drm_i915_reg_descriptor gen9_blt_regs[] = {
+ REG64_IDX(RING_TIMESTAMP, RENDER_RING_BASE),
+ REG64_IDX(RING_TIMESTAMP, BSD_RING_BASE),
+ REG32(BCS_SWCTRL),
+ REG64_IDX(RING_TIMESTAMP, BLT_RING_BASE),
+ REG64_IDX(BCS_GPR, 0),
+ REG64_IDX(BCS_GPR, 1),
+ REG64_IDX(BCS_GPR, 2),
+ REG64_IDX(BCS_GPR, 3),
+ REG64_IDX(BCS_GPR, 4),
+ REG64_IDX(BCS_GPR, 5),
+ REG64_IDX(BCS_GPR, 6),
+ REG64_IDX(BCS_GPR, 7),
+ REG64_IDX(BCS_GPR, 8),
+ REG64_IDX(BCS_GPR, 9),
+ REG64_IDX(BCS_GPR, 10),
+ REG64_IDX(BCS_GPR, 11),
+ REG64_IDX(BCS_GPR, 12),
+ REG64_IDX(BCS_GPR, 13),
+ REG64_IDX(BCS_GPR, 14),
+ REG64_IDX(BCS_GPR, 15),
};
#undef REG64
@@ -631,28 +693,27 @@ static const struct drm_i915_reg_descriptor hsw_master_regs[] = {
struct drm_i915_reg_table {
const struct drm_i915_reg_descriptor *regs;
int num_regs;
- bool master;
};
static const struct drm_i915_reg_table ivb_render_reg_tables[] = {
- { gen7_render_regs, ARRAY_SIZE(gen7_render_regs), false },
- { ivb_master_regs, ARRAY_SIZE(ivb_master_regs), true },
+ { gen7_render_regs, ARRAY_SIZE(gen7_render_regs) },
};
static const struct drm_i915_reg_table ivb_blt_reg_tables[] = {
- { gen7_blt_regs, ARRAY_SIZE(gen7_blt_regs), false },
- { ivb_master_regs, ARRAY_SIZE(ivb_master_regs), true },
+ { gen7_blt_regs, ARRAY_SIZE(gen7_blt_regs) },
};
static const struct drm_i915_reg_table hsw_render_reg_tables[] = {
- { gen7_render_regs, ARRAY_SIZE(gen7_render_regs), false },
- { hsw_render_regs, ARRAY_SIZE(hsw_render_regs), false },
- { hsw_master_regs, ARRAY_SIZE(hsw_master_regs), true },
+ { gen7_render_regs, ARRAY_SIZE(gen7_render_regs) },
+ { hsw_render_regs, ARRAY_SIZE(hsw_render_regs) },
};
static const struct drm_i915_reg_table hsw_blt_reg_tables[] = {
- { gen7_blt_regs, ARRAY_SIZE(gen7_blt_regs), false },
- { hsw_master_regs, ARRAY_SIZE(hsw_master_regs), true },
+ { gen7_blt_regs, ARRAY_SIZE(gen7_blt_regs) },
+};
+
+static const struct drm_i915_reg_table gen9_blt_reg_tables[] = {
+ { gen9_blt_regs, ARRAY_SIZE(gen9_blt_regs) },
};
static u32 gen7_render_get_cmd_length_mask(u32 cmd_header)
@@ -710,6 +771,17 @@ static u32 gen7_blt_get_cmd_length_mask(u32 cmd_header)
return 0;
}
+static u32 gen9_blt_get_cmd_length_mask(u32 cmd_header)
+{
+ u32 client = cmd_header >> INSTR_CLIENT_SHIFT;
+
+ if (client == INSTR_MI_CLIENT || client == INSTR_BC_CLIENT)
+ return 0xFF;
+
+ DRM_DEBUG_DRIVER("CMD: Abnormal blt cmd length! 0x%08X\n", cmd_header);
+ return 0;
+}
+
static bool validate_cmds_sorted(const struct intel_engine_cs *engine,
const struct drm_i915_cmd_table *cmd_tables,
int cmd_table_count)
@@ -867,18 +939,19 @@ void intel_engine_init_cmd_parser(struct intel_engine_cs *engine)
int cmd_table_count;
int ret;
- if (!IS_GEN(engine->i915, 7))
+ if (!IS_GEN(engine->i915, 7) && !(IS_GEN(engine->i915, 9) &&
+ engine->class == COPY_ENGINE_CLASS))
return;
switch (engine->class) {
case RENDER_CLASS:
if (IS_HASWELL(engine->i915)) {
- cmd_tables = hsw_render_ring_cmds;
+ cmd_tables = hsw_render_ring_cmd_table;
cmd_table_count =
- ARRAY_SIZE(hsw_render_ring_cmds);
+ ARRAY_SIZE(hsw_render_ring_cmd_table);
} else {
- cmd_tables = gen7_render_cmds;
- cmd_table_count = ARRAY_SIZE(gen7_render_cmds);
+ cmd_tables = gen7_render_cmd_table;
+ cmd_table_count = ARRAY_SIZE(gen7_render_cmd_table);
}
if (IS_HASWELL(engine->i915)) {
@@ -888,36 +961,46 @@ void intel_engine_init_cmd_parser(struct intel_engine_cs *engine)
engine->reg_tables = ivb_render_reg_tables;
engine->reg_table_count = ARRAY_SIZE(ivb_render_reg_tables);
}
-
engine->get_cmd_length_mask = gen7_render_get_cmd_length_mask;
break;
case VIDEO_DECODE_CLASS:
- cmd_tables = gen7_video_cmds;
- cmd_table_count = ARRAY_SIZE(gen7_video_cmds);
+ cmd_tables = gen7_video_cmd_table;
+ cmd_table_count = ARRAY_SIZE(gen7_video_cmd_table);
engine->get_cmd_length_mask = gen7_bsd_get_cmd_length_mask;
break;
case COPY_ENGINE_CLASS:
- if (IS_HASWELL(engine->i915)) {
- cmd_tables = hsw_blt_ring_cmds;
- cmd_table_count = ARRAY_SIZE(hsw_blt_ring_cmds);
+ engine->get_cmd_length_mask = gen7_blt_get_cmd_length_mask;
+ if (IS_GEN(engine->i915, 9)) {
+ cmd_tables = gen9_blt_cmd_table;
+ cmd_table_count = ARRAY_SIZE(gen9_blt_cmd_table);
+ engine->get_cmd_length_mask =
+ gen9_blt_get_cmd_length_mask;
+
+ /* BCS Engine unsafe without parser */
+ engine->flags |= I915_ENGINE_REQUIRES_CMD_PARSER;
+ } else if (IS_HASWELL(engine->i915)) {
+ cmd_tables = hsw_blt_ring_cmd_table;
+ cmd_table_count = ARRAY_SIZE(hsw_blt_ring_cmd_table);
} else {
- cmd_tables = gen7_blt_cmds;
- cmd_table_count = ARRAY_SIZE(gen7_blt_cmds);
+ cmd_tables = gen7_blt_cmd_table;
+ cmd_table_count = ARRAY_SIZE(gen7_blt_cmd_table);
}
- if (IS_HASWELL(engine->i915)) {
+ if (IS_GEN(engine->i915, 9)) {
+ engine->reg_tables = gen9_blt_reg_tables;
+ engine->reg_table_count =
+ ARRAY_SIZE(gen9_blt_reg_tables);
+ } else if (IS_HASWELL(engine->i915)) {
engine->reg_tables = hsw_blt_reg_tables;
engine->reg_table_count = ARRAY_SIZE(hsw_blt_reg_tables);
} else {
engine->reg_tables = ivb_blt_reg_tables;
engine->reg_table_count = ARRAY_SIZE(ivb_blt_reg_tables);
}
-
- engine->get_cmd_length_mask = gen7_blt_get_cmd_length_mask;
break;
case VIDEO_ENHANCEMENT_CLASS:
- cmd_tables = hsw_vebox_cmds;
- cmd_table_count = ARRAY_SIZE(hsw_vebox_cmds);
+ cmd_tables = hsw_vebox_cmd_table;
+ cmd_table_count = ARRAY_SIZE(hsw_vebox_cmd_table);
/* VECS can use the same length_mask function as VCS */
engine->get_cmd_length_mask = gen7_bsd_get_cmd_length_mask;
break;
@@ -943,7 +1026,7 @@ void intel_engine_init_cmd_parser(struct intel_engine_cs *engine)
return;
}
- engine->flags |= I915_ENGINE_NEEDS_CMD_PARSER;
+ engine->flags |= I915_ENGINE_USING_CMD_PARSER;
}
/**
@@ -955,7 +1038,7 @@ void intel_engine_init_cmd_parser(struct intel_engine_cs *engine)
*/
void intel_engine_cleanup_cmd_parser(struct intel_engine_cs *engine)
{
- if (!intel_engine_needs_cmd_parser(engine))
+ if (!intel_engine_using_cmd_parser(engine))
return;
fini_hash_table(engine);
@@ -1029,22 +1112,16 @@ __find_reg(const struct drm_i915_reg_descriptor *table, int count, u32 addr)
}
static const struct drm_i915_reg_descriptor *
-find_reg(const struct intel_engine_cs *engine, bool is_master, u32 addr)
+find_reg(const struct intel_engine_cs *engine, u32 addr)
{
const struct drm_i915_reg_table *table = engine->reg_tables;
+ const struct drm_i915_reg_descriptor *reg = NULL;
int count = engine->reg_table_count;
- for (; count > 0; ++table, --count) {
- if (!table->master || is_master) {
- const struct drm_i915_reg_descriptor *reg;
+ for (; !reg && (count > 0); ++table, --count)
+ reg = __find_reg(table->regs, table->num_regs, addr);
- reg = __find_reg(table->regs, table->num_regs, addr);
- if (reg != NULL)
- return reg;
- }
- }
-
- return NULL;
+ return reg;
}
/* Returns a vmap'd pointer to dst_obj, which the caller must unmap */
@@ -1128,8 +1205,7 @@ static u32 *copy_batch(struct drm_i915_gem_object *dst_obj,
static bool check_cmd(const struct intel_engine_cs *engine,
const struct drm_i915_cmd_descriptor *desc,
- const u32 *cmd, u32 length,
- const bool is_master)
+ const u32 *cmd, u32 length)
{
if (desc->flags & CMD_DESC_SKIP)
return true;
@@ -1139,12 +1215,6 @@ static bool check_cmd(const struct intel_engine_cs *engine,
return false;
}
- if ((desc->flags & CMD_DESC_MASTER) && !is_master) {
- DRM_DEBUG_DRIVER("CMD: Rejected master-only command: 0x%08X\n",
- *cmd);
- return false;
- }
-
if (desc->flags & CMD_DESC_REGISTER) {
/*
* Get the distance between individual register offset
@@ -1158,7 +1228,7 @@ static bool check_cmd(const struct intel_engine_cs *engine,
offset += step) {
const u32 reg_addr = cmd[offset] & desc->reg.mask;
const struct drm_i915_reg_descriptor *reg =
- find_reg(engine, is_master, reg_addr);
+ find_reg(engine, reg_addr);
if (!reg) {
DRM_DEBUG_DRIVER("CMD: Rejected register 0x%08X in command: 0x%08X (%s)\n",
@@ -1236,16 +1306,112 @@ static bool check_cmd(const struct intel_engine_cs *engine,
return true;
}
+static int check_bbstart(const struct i915_gem_context *ctx,
+ u32 *cmd, u32 offset, u32 length,
+ u32 batch_len,
+ u64 batch_start,
+ u64 shadow_batch_start)
+{
+ u64 jump_offset, jump_target;
+ u32 target_cmd_offset, target_cmd_index;
+
+ /* For igt compatibility on older platforms */
+ if (CMDPARSER_USES_GGTT(ctx->i915)) {
+ DRM_DEBUG("CMD: Rejecting BB_START for ggtt based submission\n");
+ return -EACCES;
+ }
+
+ if (length != 3) {
+ DRM_DEBUG("CMD: Recursive BB_START with bad length(%u)\n",
+ length);
+ return -EINVAL;
+ }
+
+ jump_target = *(u64*)(cmd+1);
+ jump_offset = jump_target - batch_start;
+
+ /*
+ * Any underflow of jump_target is guaranteed to be outside the range
+ * of a u32, so >= test catches both too large and too small
+ */
+ if (jump_offset >= batch_len) {
+ DRM_DEBUG("CMD: BB_START to 0x%llx jumps out of BB\n",
+ jump_target);
+ return -EINVAL;
+ }
+
+ /*
+ * This cannot overflow a u32 because we already checked jump_offset
+ * is within the BB, and the batch_len is a u32
+ */
+ target_cmd_offset = lower_32_bits(jump_offset);
+ target_cmd_index = target_cmd_offset / sizeof(u32);
+
+ *(u64*)(cmd + 1) = shadow_batch_start + target_cmd_offset;
+
+ if (target_cmd_index == offset)
+ return 0;
+
+ if (ctx->jump_whitelist_cmds <= target_cmd_index) {
+ DRM_DEBUG("CMD: Rejecting BB_START - truncated whitelist array\n");
+ return -EINVAL;
+ } else if (!test_bit(target_cmd_index, ctx->jump_whitelist)) {
+ DRM_DEBUG("CMD: BB_START to 0x%llx not a previously executed cmd\n",
+ jump_target);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static void init_whitelist(struct i915_gem_context *ctx, u32 batch_len)
+{
+ const u32 batch_cmds = DIV_ROUND_UP(batch_len, sizeof(u32));
+ const u32 exact_size = BITS_TO_LONGS(batch_cmds);
+ u32 next_size = BITS_TO_LONGS(roundup_pow_of_two(batch_cmds));
+ unsigned long *next_whitelist;
+
+ if (CMDPARSER_USES_GGTT(ctx->i915))
+ return;
+
+ if (batch_cmds <= ctx->jump_whitelist_cmds) {
+ bitmap_zero(ctx->jump_whitelist, batch_cmds);
+ return;
+ }
+
+again:
+ next_whitelist = kcalloc(next_size, sizeof(long), GFP_KERNEL);
+ if (next_whitelist) {
+ kfree(ctx->jump_whitelist);
+ ctx->jump_whitelist = next_whitelist;
+ ctx->jump_whitelist_cmds =
+ next_size * BITS_PER_BYTE * sizeof(long);
+ return;
+ }
+
+ if (next_size > exact_size) {
+ next_size = exact_size;
+ goto again;
+ }
+
+ DRM_DEBUG("CMD: Failed to extend whitelist. BB_START may be disallowed\n");
+ bitmap_zero(ctx->jump_whitelist, ctx->jump_whitelist_cmds);
+
+ return;
+}
+
#define LENGTH_BIAS 2
/**
* i915_parse_cmds() - parse a submitted batch buffer for privilege violations
+ * @ctx: the context in which the batch is to execute
* @engine: the engine on which the batch is to execute
* @batch_obj: the batch buffer in question
- * @shadow_batch_obj: copy of the batch buffer in question
+ * @batch_start: Canonical base address of batch
* @batch_start_offset: byte offset in the batch at which execution starts
* @batch_len: length of the commands in batch_obj
- * @is_master: is the submitting process the drm master?
+ * @shadow_batch_obj: copy of the batch buffer in question
+ * @shadow_batch_start: Canonical base address of shadow_batch_obj
*
* Parses the specified batch buffer looking for privilege violations as
* described in the overview.
@@ -1253,14 +1419,17 @@ static bool check_cmd(const struct intel_engine_cs *engine,
* Return: non-zero if the parser finds violations or otherwise fails; -EACCES
* if the batch appears legal but should use hardware parsing
*/
-int intel_engine_cmd_parser(struct intel_engine_cs *engine,
+
+int intel_engine_cmd_parser(struct i915_gem_context *ctx,
+ struct intel_engine_cs *engine,
struct drm_i915_gem_object *batch_obj,
- struct drm_i915_gem_object *shadow_batch_obj,
+ u64 batch_start,
u32 batch_start_offset,
u32 batch_len,
- bool is_master)
+ struct drm_i915_gem_object *shadow_batch_obj,
+ u64 shadow_batch_start)
{
- u32 *cmd, *batch_end;
+ u32 *cmd, *batch_end, offset = 0;
struct drm_i915_cmd_descriptor default_desc = noop_desc;
const struct drm_i915_cmd_descriptor *desc = &default_desc;
bool needs_clflush_after = false;
@@ -1274,6 +1443,8 @@ int intel_engine_cmd_parser(struct intel_engine_cs *engine,
return PTR_ERR(cmd);
}
+ init_whitelist(ctx, batch_len);
+
/*
* We use the batch length as size because the shadow object is as
* large or larger and copy_batch() will write MI_NOPs to the extra
@@ -1283,31 +1454,15 @@ int intel_engine_cmd_parser(struct intel_engine_cs *engine,
do {
u32 length;
- if (*cmd == MI_BATCH_BUFFER_END) {
- if (needs_clflush_after) {
- void *ptr = page_mask_bits(shadow_batch_obj->mm.mapping);
- drm_clflush_virt_range(ptr,
- (void *)(cmd + 1) - ptr);
- }
+ if (*cmd == MI_BATCH_BUFFER_END)
break;
- }
desc = find_cmd(engine, *cmd, desc, &default_desc);
if (!desc) {
DRM_DEBUG_DRIVER("CMD: Unrecognized command: 0x%08X\n",
*cmd);
ret = -EINVAL;
- break;
- }
-
- /*
- * If the batch buffer contains a chained batch, return an
- * error that tells the caller to abort and dispatch the
- * workload as a non-secure batch.
- */
- if (desc->cmd.value == MI_BATCH_BUFFER_START) {
- ret = -EACCES;
- break;
+ goto err;
}
if (desc->flags & CMD_DESC_FIXED)
@@ -1321,22 +1476,43 @@ int intel_engine_cmd_parser(struct intel_engine_cs *engine,
length,
batch_end - cmd);
ret = -EINVAL;
+ goto err;
+ }
+
+ if (!check_cmd(engine, desc, cmd, length)) {
+ ret = -EACCES;
+ goto err;
+ }
+
+ if (desc->cmd.value == MI_BATCH_BUFFER_START) {
+ ret = check_bbstart(ctx, cmd, offset, length,
+ batch_len, batch_start,
+ shadow_batch_start);
+
+ if (ret)
+ goto err;
break;
}
- if (!check_cmd(engine, desc, cmd, length, is_master)) {
- ret = -EACCES;
- break;
- }
+ if (ctx->jump_whitelist_cmds > offset)
+ set_bit(offset, ctx->jump_whitelist);
cmd += length;
+ offset += length;
if (cmd >= batch_end) {
DRM_DEBUG_DRIVER("CMD: Got to the end of the buffer w/o a BBE cmd!\n");
ret = -EINVAL;
- break;
+ goto err;
}
} while (1);
+ if (needs_clflush_after) {
+ void *ptr = page_mask_bits(shadow_batch_obj->mm.mapping);
+
+ drm_clflush_virt_range(ptr, (void *)(cmd + 1) - ptr);
+ }
+
+err:
i915_gem_object_unpin_map(shadow_batch_obj);
return ret;
}
@@ -1357,7 +1533,7 @@ int i915_cmd_parser_get_version(struct drm_i915_private *dev_priv)
/* If the command parser is not enabled, report 0 - unsupported */
for_each_uabi_engine(engine, dev_priv) {
- if (intel_engine_needs_cmd_parser(engine)) {
+ if (intel_engine_using_cmd_parser(engine)) {
active = true;
break;
}
@@ -1382,6 +1558,7 @@ int i915_cmd_parser_get_version(struct drm_i915_private *dev_priv)
* the parser enabled.
* 9. Don't whitelist or handle oacontrol specially, as ownership
* for oacontrol state is moving to i915-perf.
+ * 10. Support for Gen9 BCS Parsing
*/
- return 9;
+ return 10;
}
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index bb6f86c..3d717e2 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -364,9 +364,6 @@ static int i915_driver_modeset_probe(struct drm_device *dev)
if (ret)
goto cleanup_vga_client;
- /* must happen before intel_power_domains_init_hw() on VLV/CHV */
- intel_update_rawclk(dev_priv);
-
intel_power_domains_init_hw(dev_priv, false);
intel_csr_ucode_init(dev_priv);
@@ -1850,6 +1847,8 @@ static int i915_drm_suspend_late(struct drm_device *dev, bool hibernation)
i915_gem_suspend_late(dev_priv);
+ i915_rc6_ctx_wa_suspend(dev_priv);
+
intel_uncore_suspend(&dev_priv->uncore);
intel_power_domains_suspend(dev_priv,
@@ -2053,6 +2052,8 @@ static int i915_drm_resume_early(struct drm_device *dev)
intel_power_domains_resume(dev_priv);
+ i915_rc6_ctx_wa_resume(dev_priv);
+
intel_gt_sanitize(&dev_priv->gt, true);
enable_rpm_wakeref_asserts(&dev_priv->runtime_pm);
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 953e1d1..89b6112 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -593,6 +593,8 @@ struct intel_rps {
struct intel_rc6 {
bool enabled;
+ bool ctx_corrupted;
+ intel_wakeref_t ctx_corrupted_wakeref;
u64 prev_hw_residency[4];
u64 cur_residency[4];
};
@@ -2075,9 +2077,16 @@ IS_SUBPLATFORM(const struct drm_i915_private *i915,
#define VEBOX_MASK(dev_priv) \
ENGINE_INSTANCES_MASK(dev_priv, VECS0, I915_MAX_VECS)
+/*
+ * The Gen7 cmdparser copies the scanned buffer to the ggtt for execution
+ * All later gens can run the final buffer from the ppgtt
+ */
+#define CMDPARSER_USES_GGTT(dev_priv) IS_GEN(dev_priv, 7)
+
#define HAS_LLC(dev_priv) (INTEL_INFO(dev_priv)->has_llc)
#define HAS_SNOOP(dev_priv) (INTEL_INFO(dev_priv)->has_snoop)
#define HAS_EDRAM(dev_priv) ((dev_priv)->edram_size_mb)
+#define HAS_SECURE_BATCHES(dev_priv) (INTEL_GEN(dev_priv) < 6)
#define HAS_WT(dev_priv) ((IS_HASWELL(dev_priv) || \
IS_BROADWELL(dev_priv)) && HAS_EDRAM(dev_priv))
@@ -2110,10 +2119,12 @@ IS_SUBPLATFORM(const struct drm_i915_private *i915,
/* Early gen2 have a totally busted CS tlb and require pinned batches. */
#define HAS_BROKEN_CS_TLB(dev_priv) (IS_I830(dev_priv) || IS_I845G(dev_priv))
+#define NEEDS_RC6_CTX_CORRUPTION_WA(dev_priv) \
+ (IS_BROADWELL(dev_priv) || IS_GEN(dev_priv, 9))
+
/* WaRsDisableCoarsePowerGating:skl,cnl */
#define NEEDS_WaRsDisableCoarsePowerGating(dev_priv) \
- (IS_CANNONLAKE(dev_priv) || \
- IS_SKL_GT3(dev_priv) || IS_SKL_GT4(dev_priv))
+ (IS_CANNONLAKE(dev_priv) || IS_GEN(dev_priv, 9))
#define HAS_GMBUS_IRQ(dev_priv) (INTEL_GEN(dev_priv) >= 4)
#define HAS_GMBUS_BURST_READ(dev_priv) (INTEL_GEN(dev_priv) >= 10 || \
@@ -2284,6 +2295,14 @@ int i915_gem_object_unbind(struct drm_i915_gem_object *obj,
unsigned long flags);
#define I915_GEM_OBJECT_UNBIND_ACTIVE BIT(0)
+struct i915_vma * __must_check
+i915_gem_object_pin(struct drm_i915_gem_object *obj,
+ struct i915_address_space *vm,
+ const struct i915_ggtt_view *view,
+ u64 size,
+ u64 alignment,
+ u64 flags);
+
void i915_gem_runtime_suspend(struct drm_i915_private *dev_priv);
static inline int __must_check
@@ -2393,12 +2412,14 @@ const char *i915_cache_level_str(struct drm_i915_private *i915, int type);
int i915_cmd_parser_get_version(struct drm_i915_private *dev_priv);
void intel_engine_init_cmd_parser(struct intel_engine_cs *engine);
void intel_engine_cleanup_cmd_parser(struct intel_engine_cs *engine);
-int intel_engine_cmd_parser(struct intel_engine_cs *engine,
+int intel_engine_cmd_parser(struct i915_gem_context *cxt,
+ struct intel_engine_cs *engine,
struct drm_i915_gem_object *batch_obj,
- struct drm_i915_gem_object *shadow_batch_obj,
+ u64 user_batch_start,
u32 batch_start_offset,
u32 batch_len,
- bool is_master);
+ struct drm_i915_gem_object *shadow_batch_obj,
+ u64 shadow_batch_start);
/* intel_device_info.c */
static inline struct intel_device_info *
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index d0f94f2..98305d9 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -964,6 +964,20 @@ i915_gem_object_ggtt_pin(struct drm_i915_gem_object *obj,
{
struct drm_i915_private *dev_priv = to_i915(obj->base.dev);
struct i915_address_space *vm = &dev_priv->ggtt.vm;
+
+ return i915_gem_object_pin(obj, vm, view, size, alignment,
+ flags | PIN_GLOBAL);
+}
+
+struct i915_vma *
+i915_gem_object_pin(struct drm_i915_gem_object *obj,
+ struct i915_address_space *vm,
+ const struct i915_ggtt_view *view,
+ u64 size,
+ u64 alignment,
+ u64 flags)
+{
+ struct drm_i915_private *dev_priv = to_i915(obj->base.dev);
struct i915_vma *vma;
int ret;
@@ -1038,7 +1052,7 @@ i915_gem_object_ggtt_pin(struct drm_i915_gem_object *obj,
return ERR_PTR(ret);
}
- ret = i915_vma_pin(vma, size, alignment, flags | PIN_GLOBAL);
+ ret = i915_vma_pin(vma, size, alignment, flags);
if (ret)
return ERR_PTR(ret);
diff --git a/drivers/gpu/drm/i915/i915_getparam.c b/drivers/gpu/drm/i915/i915_getparam.c
index 5d91013..9f1517a 100644
--- a/drivers/gpu/drm/i915/i915_getparam.c
+++ b/drivers/gpu/drm/i915/i915_getparam.c
@@ -62,7 +62,7 @@ int i915_getparam_ioctl(struct drm_device *dev, void *data,
value = !!(i915->caps.scheduler & I915_SCHEDULER_CAP_SEMAPHORES);
break;
case I915_PARAM_HAS_SECURE_BATCHES:
- value = capable(CAP_SYS_ADMIN);
+ value = HAS_SECURE_BATCHES(i915) && capable(CAP_SYS_ADMIN);
break;
case I915_PARAM_CMD_PARSER_VERSION:
value = i915_cmd_parser_get_version(i915);
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 2abd199..f8ee9ab 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -471,6 +471,8 @@ static inline bool i915_mmio_reg_valid(i915_reg_t reg)
#define ECOCHK_PPGTT_WT_HSW (0x2 << 3)
#define ECOCHK_PPGTT_WB_HSW (0x3 << 3)
+#define GEN8_RC6_CTX_INFO _MMIO(0x8504)
+
#define GAC_ECO_BITS _MMIO(0x14090)
#define ECOBITS_SNB_BIT (1 << 13)
#define ECOBITS_PPGTT_CACHE64B (3 << 8)
@@ -555,6 +557,10 @@ static inline bool i915_mmio_reg_valid(i915_reg_t reg)
*/
#define BCS_SWCTRL _MMIO(0x22200)
+/* There are 16 GPR registers */
+#define BCS_GPR(n) _MMIO(0x22600 + (n) * 8)
+#define BCS_GPR_UDW(n) _MMIO(0x22600 + (n) * 8 + 4)
+
#define GPGPU_THREADS_DISPATCHED _MMIO(0x2290)
#define GPGPU_THREADS_DISPATCHED_UDW _MMIO(0x2290 + 4)
#define HS_INVOCATION_COUNT _MMIO(0x2300)
@@ -7211,6 +7217,10 @@ enum {
#define TGL_DMC_DEBUG_DC5_COUNT _MMIO(0x101084)
#define TGL_DMC_DEBUG_DC6_COUNT _MMIO(0x101088)
+/* Display Internal Timeout Register */
+#define RM_TIMEOUT _MMIO(0x42060)
+#define MMIO_TIMEOUT_US(us) ((us) << 0)
+
/* interrupts */
#define DE_MASTER_IRQ_CONTROL (1 << 31)
#define DE_SPRITEB_FLIP_DONE (1 << 29)
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c
index 75ee027..2efe1d1 100644
--- a/drivers/gpu/drm/i915/intel_pm.c
+++ b/drivers/gpu/drm/i915/intel_pm.c
@@ -126,6 +126,14 @@ static void bxt_init_clock_gating(struct drm_i915_private *dev_priv)
*/
I915_WRITE(GEN9_CLKGATE_DIS_0, I915_READ(GEN9_CLKGATE_DIS_0) |
PWM1_GATING_DIS | PWM2_GATING_DIS);
+
+ /*
+ * Lower the display internal timeout.
+ * This is needed to avoid any hard hangs when DSI port PLL
+ * is off and a MMIO access is attempted by any privilege
+ * application, using batch buffers or any other means.
+ */
+ I915_WRITE(RM_TIMEOUT, MMIO_TIMEOUT_US(950));
}
static void glk_init_clock_gating(struct drm_i915_private *dev_priv)
@@ -8544,6 +8552,100 @@ static void intel_init_emon(struct drm_i915_private *dev_priv)
dev_priv->ips.corr = (lcfuse & LCFUSE_HIV_MASK);
}
+static bool i915_rc6_ctx_corrupted(struct drm_i915_private *dev_priv)
+{
+ return !I915_READ(GEN8_RC6_CTX_INFO);
+}
+
+static void i915_rc6_ctx_wa_init(struct drm_i915_private *i915)
+{
+ if (!NEEDS_RC6_CTX_CORRUPTION_WA(i915))
+ return;
+
+ if (i915_rc6_ctx_corrupted(i915)) {
+ DRM_INFO("RC6 context corrupted, disabling runtime power management\n");
+ i915->gt_pm.rc6.ctx_corrupted = true;
+ i915->gt_pm.rc6.ctx_corrupted_wakeref =
+ intel_runtime_pm_get(&i915->runtime_pm);
+ }
+}
+
+static void i915_rc6_ctx_wa_cleanup(struct drm_i915_private *i915)
+{
+ if (i915->gt_pm.rc6.ctx_corrupted) {
+ intel_runtime_pm_put(&i915->runtime_pm,
+ i915->gt_pm.rc6.ctx_corrupted_wakeref);
+ i915->gt_pm.rc6.ctx_corrupted = false;
+ }
+}
+
+/**
+ * i915_rc6_ctx_wa_suspend - system suspend sequence for the RC6 CTX WA
+ * @i915: i915 device
+ *
+ * Perform any steps needed to clean up the RC6 CTX WA before system suspend.
+ */
+void i915_rc6_ctx_wa_suspend(struct drm_i915_private *i915)
+{
+ if (i915->gt_pm.rc6.ctx_corrupted)
+ intel_runtime_pm_put(&i915->runtime_pm,
+ i915->gt_pm.rc6.ctx_corrupted_wakeref);
+}
+
+/**
+ * i915_rc6_ctx_wa_resume - system resume sequence for the RC6 CTX WA
+ * @i915: i915 device
+ *
+ * Perform any steps needed to re-init the RC6 CTX WA after system resume.
+ */
+void i915_rc6_ctx_wa_resume(struct drm_i915_private *i915)
+{
+ if (!i915->gt_pm.rc6.ctx_corrupted)
+ return;
+
+ if (i915_rc6_ctx_corrupted(i915)) {
+ i915->gt_pm.rc6.ctx_corrupted_wakeref =
+ intel_runtime_pm_get(&i915->runtime_pm);
+ return;
+ }
+
+ DRM_INFO("RC6 context restored, re-enabling runtime power management\n");
+ i915->gt_pm.rc6.ctx_corrupted = false;
+}
+
+static void intel_disable_rc6(struct drm_i915_private *dev_priv);
+
+/**
+ * i915_rc6_ctx_wa_check - check for a new RC6 CTX corruption
+ * @i915: i915 device
+ *
+ * Check if an RC6 CTX corruption has happened since the last check and if so
+ * disable RC6 and runtime power management.
+ *
+ * Return false if no context corruption has happened since the last call of
+ * this function, true otherwise.
+*/
+bool i915_rc6_ctx_wa_check(struct drm_i915_private *i915)
+{
+ if (!NEEDS_RC6_CTX_CORRUPTION_WA(i915))
+ return false;
+
+ if (i915->gt_pm.rc6.ctx_corrupted)
+ return false;
+
+ if (!i915_rc6_ctx_corrupted(i915))
+ return false;
+
+ DRM_NOTE("RC6 context corruption, disabling runtime power management\n");
+
+ intel_disable_rc6(i915);
+ i915->gt_pm.rc6.ctx_corrupted = true;
+ i915->gt_pm.rc6.ctx_corrupted_wakeref =
+ intel_runtime_pm_get_noresume(&i915->runtime_pm);
+
+ return true;
+}
+
void intel_init_gt_powersave(struct drm_i915_private *dev_priv)
{
struct intel_rps *rps = &dev_priv->gt_pm.rps;
@@ -8557,6 +8659,8 @@ void intel_init_gt_powersave(struct drm_i915_private *dev_priv)
pm_runtime_get(&dev_priv->drm.pdev->dev);
}
+ i915_rc6_ctx_wa_init(dev_priv);
+
/* Initialize RPS limits (for userspace) */
if (IS_CHERRYVIEW(dev_priv))
cherryview_init_gt_powersave(dev_priv);
@@ -8595,6 +8699,8 @@ void intel_cleanup_gt_powersave(struct drm_i915_private *dev_priv)
if (IS_VALLEYVIEW(dev_priv))
valleyview_cleanup_gt_powersave(dev_priv);
+ i915_rc6_ctx_wa_cleanup(dev_priv);
+
if (!HAS_RC6(dev_priv))
pm_runtime_put(&dev_priv->drm.pdev->dev);
}
@@ -8623,7 +8729,7 @@ static inline void intel_disable_llc_pstate(struct drm_i915_private *i915)
i915->gt_pm.llc_pstate.enabled = false;
}
-static void intel_disable_rc6(struct drm_i915_private *dev_priv)
+static void __intel_disable_rc6(struct drm_i915_private *dev_priv)
{
lockdep_assert_held(&dev_priv->gt_pm.rps.lock);
@@ -8642,6 +8748,15 @@ static void intel_disable_rc6(struct drm_i915_private *dev_priv)
dev_priv->gt_pm.rc6.enabled = false;
}
+static void intel_disable_rc6(struct drm_i915_private *dev_priv)
+{
+ struct intel_rps *rps = &dev_priv->gt_pm.rps;
+
+ mutex_lock(&rps->lock);
+ __intel_disable_rc6(dev_priv);
+ mutex_unlock(&rps->lock);
+}
+
static void intel_disable_rps(struct drm_i915_private *dev_priv)
{
lockdep_assert_held(&dev_priv->gt_pm.rps.lock);
@@ -8667,7 +8782,7 @@ void intel_disable_gt_powersave(struct drm_i915_private *dev_priv)
{
mutex_lock(&dev_priv->gt_pm.rps.lock);
- intel_disable_rc6(dev_priv);
+ __intel_disable_rc6(dev_priv);
intel_disable_rps(dev_priv);
if (HAS_LLC(dev_priv))
intel_disable_llc_pstate(dev_priv);
@@ -8694,6 +8809,9 @@ static void intel_enable_rc6(struct drm_i915_private *dev_priv)
if (dev_priv->gt_pm.rc6.enabled)
return;
+ if (dev_priv->gt_pm.rc6.ctx_corrupted)
+ return;
+
if (IS_CHERRYVIEW(dev_priv))
cherryview_enable_rc6(dev_priv);
else if (IS_VALLEYVIEW(dev_priv))
diff --git a/drivers/gpu/drm/i915/intel_pm.h b/drivers/gpu/drm/i915/intel_pm.h
index e3573e1..0f7390c 100644
--- a/drivers/gpu/drm/i915/intel_pm.h
+++ b/drivers/gpu/drm/i915/intel_pm.h
@@ -36,6 +36,9 @@ void intel_cleanup_gt_powersave(struct drm_i915_private *dev_priv);
void intel_sanitize_gt_powersave(struct drm_i915_private *dev_priv);
void intel_enable_gt_powersave(struct drm_i915_private *dev_priv);
void intel_disable_gt_powersave(struct drm_i915_private *dev_priv);
+bool i915_rc6_ctx_wa_check(struct drm_i915_private *i915);
+void i915_rc6_ctx_wa_suspend(struct drm_i915_private *i915);
+void i915_rc6_ctx_wa_resume(struct drm_i915_private *i915);
void gen6_rps_busy(struct drm_i915_private *dev_priv);
void gen6_rps_idle(struct drm_i915_private *dev_priv);
void gen6_rps_boost(struct i915_request *rq);
diff --git a/drivers/gpu/drm/radeon/si_dpm.c b/drivers/gpu/drm/radeon/si_dpm.c
index 460fd98..a0b382a 100644
--- a/drivers/gpu/drm/radeon/si_dpm.c
+++ b/drivers/gpu/drm/radeon/si_dpm.c
@@ -1958,6 +1958,7 @@ static void si_initialize_powertune_defaults(struct radeon_device *rdev)
case 0x682C:
si_pi->cac_weights = cac_weights_cape_verde_pro;
si_pi->dte_data = dte_data_sun_xt;
+ update_dte_from_pl2 = true;
break;
case 0x6825:
case 0x6827:
diff --git a/drivers/gpu/drm/sun4i/sun4i_tcon.c b/drivers/gpu/drm/sun4i/sun4i_tcon.c
index 04c721d..b89439e 100644
--- a/drivers/gpu/drm/sun4i/sun4i_tcon.c
+++ b/drivers/gpu/drm/sun4i/sun4i_tcon.c
@@ -488,7 +488,7 @@ static void sun4i_tcon0_mode_set_rgb(struct sun4i_tcon *tcon,
WARN_ON(!tcon->quirks->has_channel_0);
- tcon->dclk_min_div = 6;
+ tcon->dclk_min_div = 1;
tcon->dclk_max_div = 127;
sun4i_tcon0_mode_set_common(tcon, mode);
diff --git a/drivers/hid/i2c-hid/i2c-hid-core.c b/drivers/hid/i2c-hid/i2c-hid-core.c
index d9c55e3..04c08813 100644
--- a/drivers/hid/i2c-hid/i2c-hid-core.c
+++ b/drivers/hid/i2c-hid/i2c-hid-core.c
@@ -447,8 +447,12 @@ static int i2c_hid_hwreset(struct i2c_client *client)
if (ret) {
dev_err(&client->dev, "failed to reset device.\n");
i2c_hid_set_power(client, I2C_HID_PWR_SLEEP);
+ goto out_unlock;
}
+ /* At least some SIS devices need this after reset */
+ ret = i2c_hid_set_power(client, I2C_HID_PWR_ON);
+
out_unlock:
mutex_unlock(&ihid->reset_lock);
return ret;
diff --git a/drivers/hid/wacom.h b/drivers/hid/wacom.h
index 4a7f8d3..203d27d 100644
--- a/drivers/hid/wacom.h
+++ b/drivers/hid/wacom.h
@@ -202,6 +202,21 @@ static inline void wacom_schedule_work(struct wacom_wac *wacom_wac,
}
}
+/*
+ * Convert a signed 32-bit integer to an unsigned n-bit integer. Undoes
+ * the normally-helpful work of 'hid_snto32' for fields that use signed
+ * ranges for questionable reasons.
+ */
+static inline __u32 wacom_s32tou(s32 value, __u8 n)
+{
+ switch (n) {
+ case 8: return ((__u8)value);
+ case 16: return ((__u16)value);
+ case 32: return ((__u32)value);
+ }
+ return value & (1 << (n - 1)) ? value & (~(~0U << n)) : value;
+}
+
extern const struct hid_device_id wacom_ids[];
void wacom_wac_irq(struct wacom_wac *wacom_wac, size_t len);
diff --git a/drivers/hid/wacom_wac.c b/drivers/hid/wacom_wac.c
index 2b0a5b8..ccb7452 100644
--- a/drivers/hid/wacom_wac.c
+++ b/drivers/hid/wacom_wac.c
@@ -2303,7 +2303,7 @@ static void wacom_wac_pen_event(struct hid_device *hdev, struct hid_field *field
case HID_DG_TOOLSERIALNUMBER:
if (value) {
wacom_wac->serial[0] = (wacom_wac->serial[0] & ~0xFFFFFFFFULL);
- wacom_wac->serial[0] |= (__u32)value;
+ wacom_wac->serial[0] |= wacom_s32tou(value, field->report_size);
}
return;
case HID_DG_TWIST:
@@ -2319,15 +2319,17 @@ static void wacom_wac_pen_event(struct hid_device *hdev, struct hid_field *field
return;
case WACOM_HID_WD_SERIALHI:
if (value) {
+ __u32 raw_value = wacom_s32tou(value, field->report_size);
+
wacom_wac->serial[0] = (wacom_wac->serial[0] & 0xFFFFFFFF);
- wacom_wac->serial[0] |= ((__u64)value) << 32;
+ wacom_wac->serial[0] |= ((__u64)raw_value) << 32;
/*
* Non-USI EMR devices may contain additional tool type
* information here. See WACOM_HID_WD_TOOLTYPE case for
* more details.
*/
if (value >> 20 == 1) {
- wacom_wac->id[0] |= value & 0xFFFFF;
+ wacom_wac->id[0] |= raw_value & 0xFFFFF;
}
}
return;
@@ -2339,7 +2341,7 @@ static void wacom_wac_pen_event(struct hid_device *hdev, struct hid_field *field
* bitwise OR so the complete value can be built
* up over time :(
*/
- wacom_wac->id[0] |= value;
+ wacom_wac->id[0] |= wacom_s32tou(value, field->report_size);
return;
case WACOM_HID_WD_OFFSETLEFT:
if (features->offset_left && value != features->offset_left)
diff --git a/drivers/hwtracing/intel_th/gth.c b/drivers/hwtracing/intel_th/gth.c
index fa9d34a..f72803a 100644
--- a/drivers/hwtracing/intel_th/gth.c
+++ b/drivers/hwtracing/intel_th/gth.c
@@ -626,6 +626,9 @@ static void intel_th_gth_switch(struct intel_th_device *thdev,
if (!count)
dev_dbg(&thdev->dev, "timeout waiting for CTS Trigger\n");
+ /* De-assert the trigger */
+ iowrite32(0, gth->base + REG_CTS_CTL);
+
intel_th_gth_stop(gth, output, false);
intel_th_gth_start(gth, output);
}
diff --git a/drivers/hwtracing/intel_th/msu.c b/drivers/hwtracing/intel_th/msu.c
index fc9f15f..6d240df 100644
--- a/drivers/hwtracing/intel_th/msu.c
+++ b/drivers/hwtracing/intel_th/msu.c
@@ -164,7 +164,7 @@ struct msc {
};
static LIST_HEAD(msu_buffer_list);
-static struct mutex msu_buffer_mutex;
+static DEFINE_MUTEX(msu_buffer_mutex);
/**
* struct msu_buffer_entry - internal MSU buffer bookkeeping
@@ -327,7 +327,7 @@ static size_t msc_win_total_sz(struct msc_window *win)
struct msc_block_desc *bdesc = sg_virt(sg);
if (msc_block_wrapped(bdesc))
- return win->nr_blocks << PAGE_SHIFT;
+ return (size_t)win->nr_blocks << PAGE_SHIFT;
size += msc_total_sz(bdesc);
if (msc_block_last_written(bdesc))
@@ -1848,9 +1848,14 @@ mode_store(struct device *dev, struct device_attribute *attr, const char *buf,
len = cp - buf;
mode = kstrndup(buf, len, GFP_KERNEL);
+ if (!mode)
+ return -ENOMEM;
+
i = match_string(msc_mode, ARRAY_SIZE(msc_mode), mode);
- if (i >= 0)
+ if (i >= 0) {
+ kfree(mode);
goto found;
+ }
/* Buffer sinks only work with a usable IRQ */
if (!msc->do_irq) {
diff --git a/drivers/hwtracing/intel_th/pci.c b/drivers/hwtracing/intel_th/pci.c
index 91dfeba..03ca5b1 100644
--- a/drivers/hwtracing/intel_th/pci.c
+++ b/drivers/hwtracing/intel_th/pci.c
@@ -200,6 +200,11 @@ static const struct pci_device_id intel_th_pci_id_table[] = {
.driver_data = (kernel_ulong_t)&intel_th_2x,
},
{
+ /* Comet Lake PCH */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x06a6),
+ .driver_data = (kernel_ulong_t)&intel_th_2x,
+ },
+ {
/* Ice Lake NNPI */
PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x45c5),
.driver_data = (kernel_ulong_t)&intel_th_2x,
@@ -209,6 +214,11 @@ static const struct pci_device_id intel_th_pci_id_table[] = {
PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xa0a6),
.driver_data = (kernel_ulong_t)&intel_th_2x,
},
+ {
+ /* Jasper Lake PCH */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x4da6),
+ .driver_data = (kernel_ulong_t)&intel_th_2x,
+ },
{ 0 },
};
diff --git a/drivers/i2c/i2c-core-acpi.c b/drivers/i2c/i2c-core-acpi.c
index 9cb2aa1..62a1c92 100644
--- a/drivers/i2c/i2c-core-acpi.c
+++ b/drivers/i2c/i2c-core-acpi.c
@@ -39,6 +39,7 @@ struct i2c_acpi_lookup {
int index;
u32 speed;
u32 min_speed;
+ u32 force_speed;
};
/**
@@ -285,6 +286,19 @@ i2c_acpi_match_device(const struct acpi_device_id *matches,
return acpi_match_device(matches, &client->dev);
}
+static const struct acpi_device_id i2c_acpi_force_400khz_device_ids[] = {
+ /*
+ * These Silead touchscreen controllers only work at 400KHz, for
+ * some reason they do not work at 100KHz. On some devices the ACPI
+ * tables list another device at their bus as only being capable
+ * of 100KHz, testing has shown that these other devices work fine
+ * at 400KHz (as can be expected of any recent i2c hw) so we force
+ * the speed of the bus to 400 KHz if a Silead device is present.
+ */
+ { "MSSL1680", 0 },
+ {}
+};
+
static acpi_status i2c_acpi_lookup_speed(acpi_handle handle, u32 level,
void *data, void **return_value)
{
@@ -303,6 +317,9 @@ static acpi_status i2c_acpi_lookup_speed(acpi_handle handle, u32 level,
if (lookup->speed <= lookup->min_speed)
lookup->min_speed = lookup->speed;
+ if (acpi_match_device_ids(adev, i2c_acpi_force_400khz_device_ids) == 0)
+ lookup->force_speed = 400000;
+
return AE_OK;
}
@@ -340,7 +357,16 @@ u32 i2c_acpi_find_bus_speed(struct device *dev)
return 0;
}
- return lookup.min_speed != UINT_MAX ? lookup.min_speed : 0;
+ if (lookup.force_speed) {
+ if (lookup.force_speed != lookup.min_speed)
+ dev_warn(dev, FW_BUG "DSDT uses known not-working I2C bus speed %d, forcing it to %d\n",
+ lookup.min_speed, lookup.force_speed);
+ return lookup.force_speed;
+ } else if (lookup.min_speed != UINT_MAX) {
+ return lookup.min_speed;
+ } else {
+ return 0;
+ }
}
EXPORT_SYMBOL_GPL(i2c_acpi_find_bus_speed);
diff --git a/drivers/i2c/i2c-core-of.c b/drivers/i2c/i2c-core-of.c
index 6f632d54..7eb4199 100644
--- a/drivers/i2c/i2c-core-of.c
+++ b/drivers/i2c/i2c-core-of.c
@@ -245,14 +245,14 @@ static int of_i2c_notify(struct notifier_block *nb, unsigned long action,
}
client = of_i2c_register_device(adap, rd->dn);
- put_device(&adap->dev);
-
if (IS_ERR(client)) {
dev_err(&adap->dev, "failed to create client for '%pOF'\n",
rd->dn);
+ put_device(&adap->dev);
of_node_clear_flag(rd->dn, OF_POPULATED);
return notifier_from_errno(PTR_ERR(client));
}
+ put_device(&adap->dev);
break;
case OF_RECONFIG_CHANGE_REMOVE:
/* already depopulated? */
diff --git a/drivers/iio/adc/stm32-adc.c b/drivers/iio/adc/stm32-adc.c
index 663f8a5..73aee59 100644
--- a/drivers/iio/adc/stm32-adc.c
+++ b/drivers/iio/adc/stm32-adc.c
@@ -1399,7 +1399,7 @@ static int stm32_adc_dma_start(struct iio_dev *indio_dev)
cookie = dmaengine_submit(desc);
ret = dma_submit_error(cookie);
if (ret) {
- dmaengine_terminate_all(adc->dma_chan);
+ dmaengine_terminate_sync(adc->dma_chan);
return ret;
}
@@ -1477,7 +1477,7 @@ static void __stm32_adc_buffer_predisable(struct iio_dev *indio_dev)
stm32_adc_conv_irq_disable(adc);
if (adc->dma_chan)
- dmaengine_terminate_all(adc->dma_chan);
+ dmaengine_terminate_sync(adc->dma_chan);
if (stm32_adc_set_trig(indio_dev, NULL))
dev_err(&indio_dev->dev, "Can't clear trigger\n");
diff --git a/drivers/iio/imu/adis16480.c b/drivers/iio/imu/adis16480.c
index b99d738..8743b2f 100644
--- a/drivers/iio/imu/adis16480.c
+++ b/drivers/iio/imu/adis16480.c
@@ -317,8 +317,11 @@ static int adis16480_set_freq(struct iio_dev *indio_dev, int val, int val2)
struct adis16480 *st = iio_priv(indio_dev);
unsigned int t, reg;
+ if (val < 0 || val2 < 0)
+ return -EINVAL;
+
t = val * 1000 + val2 / 1000;
- if (t <= 0)
+ if (t == 0)
return -EINVAL;
/*
diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
index b17f060..868281b 100644
--- a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
+++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c
@@ -114,54 +114,63 @@ static const struct inv_mpu6050_hw hw_info[] = {
.name = "MPU6050",
.reg = ®_set_6050,
.config = &chip_config_6050,
+ .fifo_size = 1024,
},
{
.whoami = INV_MPU6500_WHOAMI_VALUE,
.name = "MPU6500",
.reg = ®_set_6500,
.config = &chip_config_6050,
+ .fifo_size = 512,
},
{
.whoami = INV_MPU6515_WHOAMI_VALUE,
.name = "MPU6515",
.reg = ®_set_6500,
.config = &chip_config_6050,
+ .fifo_size = 512,
},
{
.whoami = INV_MPU6000_WHOAMI_VALUE,
.name = "MPU6000",
.reg = ®_set_6050,
.config = &chip_config_6050,
+ .fifo_size = 1024,
},
{
.whoami = INV_MPU9150_WHOAMI_VALUE,
.name = "MPU9150",
.reg = ®_set_6050,
.config = &chip_config_6050,
+ .fifo_size = 1024,
},
{
.whoami = INV_MPU9250_WHOAMI_VALUE,
.name = "MPU9250",
.reg = ®_set_6500,
.config = &chip_config_6050,
+ .fifo_size = 512,
},
{
.whoami = INV_MPU9255_WHOAMI_VALUE,
.name = "MPU9255",
.reg = ®_set_6500,
.config = &chip_config_6050,
+ .fifo_size = 512,
},
{
.whoami = INV_ICM20608_WHOAMI_VALUE,
.name = "ICM20608",
.reg = ®_set_6500,
.config = &chip_config_6050,
+ .fifo_size = 512,
},
{
.whoami = INV_ICM20602_WHOAMI_VALUE,
.name = "ICM20602",
.reg = ®_set_icm20602,
.config = &chip_config_6050,
+ .fifo_size = 1008,
},
};
diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h b/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h
index db1c690..5123567 100644
--- a/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h
+++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h
@@ -100,12 +100,14 @@ struct inv_mpu6050_chip_config {
* @name: name of the chip.
* @reg: register map of the chip.
* @config: configuration of the chip.
+ * @fifo_size: size of the FIFO in bytes.
*/
struct inv_mpu6050_hw {
u8 whoami;
u8 *name;
const struct inv_mpu6050_reg_map *reg;
const struct inv_mpu6050_chip_config *config;
+ size_t fifo_size;
};
/*
diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_ring.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_ring.c
index 5f9a5de..72d8c57 100644
--- a/drivers/iio/imu/inv_mpu6050/inv_mpu_ring.c
+++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_ring.c
@@ -180,9 +180,6 @@ irqreturn_t inv_mpu6050_read_fifo(int irq, void *p)
"failed to ack interrupt\n");
goto flush_fifo;
}
- /* handle fifo overflow by reseting fifo */
- if (int_status & INV_MPU6050_BIT_FIFO_OVERFLOW_INT)
- goto flush_fifo;
if (!(int_status & INV_MPU6050_BIT_RAW_DATA_RDY_INT)) {
dev_warn(regmap_get_device(st->map),
"spurious interrupt with status 0x%x\n", int_status);
@@ -211,6 +208,18 @@ irqreturn_t inv_mpu6050_read_fifo(int irq, void *p)
if (result)
goto end_session;
fifo_count = get_unaligned_be16(&data[0]);
+
+ /*
+ * Handle fifo overflow by resetting fifo.
+ * Reset if there is only 3 data set free remaining to mitigate
+ * possible delay between reading fifo count and fifo data.
+ */
+ nb = 3 * bytes_per_datum;
+ if (fifo_count >= st->hw->fifo_size - nb) {
+ dev_warn(regmap_get_device(st->map), "fifo overflow reset\n");
+ goto flush_fifo;
+ }
+
/* compute and process all complete datum */
nb = fifo_count / bytes_per_datum;
inv_mpu6050_update_period(st, pf->timestamp, nb);
diff --git a/drivers/iio/proximity/srf04.c b/drivers/iio/proximity/srf04.c
index 8b50d56..01eb8cc 100644
--- a/drivers/iio/proximity/srf04.c
+++ b/drivers/iio/proximity/srf04.c
@@ -110,7 +110,7 @@ static int srf04_read(struct srf04_data *data)
udelay(data->cfg->trigger_pulse_us);
gpiod_set_value(data->gpiod_trig, 0);
- /* it cannot take more than 20 ms */
+ /* it should not take more than 20 ms until echo is rising */
ret = wait_for_completion_killable_timeout(&data->rising, HZ/50);
if (ret < 0) {
mutex_unlock(&data->lock);
@@ -120,7 +120,8 @@ static int srf04_read(struct srf04_data *data)
return -ETIMEDOUT;
}
- ret = wait_for_completion_killable_timeout(&data->falling, HZ/50);
+ /* it cannot take more than 50 ms until echo is falling */
+ ret = wait_for_completion_killable_timeout(&data->falling, HZ/20);
if (ret < 0) {
mutex_unlock(&data->lock);
return ret;
@@ -135,19 +136,19 @@ static int srf04_read(struct srf04_data *data)
dt_ns = ktime_to_ns(ktime_dt);
/*
- * measuring more than 3 meters is beyond the capabilities of
- * the sensor
+ * measuring more than 6,45 meters is beyond the capabilities of
+ * the supported sensors
* ==> filter out invalid results for not measuring echos of
* another us sensor
*
* formula:
- * distance 3 m
- * time = ---------- = --------- = 9404389 ns
- * speed 319 m/s
+ * distance 6,45 * 2 m
+ * time = ---------- = ------------ = 40438871 ns
+ * speed 319 m/s
*
* using a minimum speed at -20 °C of 319 m/s
*/
- if (dt_ns > 9404389)
+ if (dt_ns > 40438871)
return -EIO;
time_ns = dt_ns;
@@ -159,20 +160,20 @@ static int srf04_read(struct srf04_data *data)
* with Temp in °C
* and speed in m/s
*
- * use 343 m/s as ultrasonic speed at 20 °C here in absence of the
+ * use 343,5 m/s as ultrasonic speed at 20 °C here in absence of the
* temperature
*
* therefore:
- * time 343
- * distance = ------ * -----
- * 10^6 2
+ * time 343,5 time * 106
+ * distance = ------ * ------- = ------------
+ * 10^6 2 617176
* with time in ns
* and distance in mm (one way)
*
- * because we limit to 3 meters the multiplication with 343 just
+ * because we limit to 6,45 meters the multiplication with 106 just
* fits into 32 bit
*/
- distance_mm = time_ns * 343 / 2000000;
+ distance_mm = time_ns * 106 / 617176;
return distance_mm;
}
diff --git a/drivers/infiniband/hw/hfi1/init.c b/drivers/infiniband/hw/hfi1/init.c
index 71cb952..26b792b 100644
--- a/drivers/infiniband/hw/hfi1/init.c
+++ b/drivers/infiniband/hw/hfi1/init.c
@@ -1489,7 +1489,6 @@ static int __init hfi1_mod_init(void)
goto bail_dev;
}
- hfi1_compute_tid_rdma_flow_wt();
/*
* These must be called before the driver is registered with
* the PCI subsystem.
diff --git a/drivers/infiniband/hw/hfi1/pcie.c b/drivers/infiniband/hw/hfi1/pcie.c
index 61aa550..61362bd 100644
--- a/drivers/infiniband/hw/hfi1/pcie.c
+++ b/drivers/infiniband/hw/hfi1/pcie.c
@@ -319,7 +319,9 @@ int pcie_speeds(struct hfi1_devdata *dd)
/*
* bus->max_bus_speed is set from the bridge's linkcap Max Link Speed
*/
- if (parent && dd->pcidev->bus->max_bus_speed != PCIE_SPEED_8_0GT) {
+ if (parent &&
+ (dd->pcidev->bus->max_bus_speed == PCIE_SPEED_2_5GT ||
+ dd->pcidev->bus->max_bus_speed == PCIE_SPEED_5_0GT)) {
dd_dev_info(dd, "Parent PCIe bridge does not support Gen3\n");
dd->link_gen3_capable = 0;
}
diff --git a/drivers/infiniband/hw/hfi1/rc.c b/drivers/infiniband/hw/hfi1/rc.c
index 513a8aa..1a3c647 100644
--- a/drivers/infiniband/hw/hfi1/rc.c
+++ b/drivers/infiniband/hw/hfi1/rc.c
@@ -2209,15 +2209,15 @@ int do_rc_ack(struct rvt_qp *qp, u32 aeth, u32 psn, int opcode,
if (qp->s_flags & RVT_S_WAIT_RNR)
goto bail_stop;
rdi = ib_to_rvt(qp->ibqp.device);
- if (qp->s_rnr_retry == 0 &&
- !((rdi->post_parms[wqe->wr.opcode].flags &
- RVT_OPERATION_IGN_RNR_CNT) &&
- qp->s_rnr_retry_cnt == 0)) {
- status = IB_WC_RNR_RETRY_EXC_ERR;
- goto class_b;
+ if (!(rdi->post_parms[wqe->wr.opcode].flags &
+ RVT_OPERATION_IGN_RNR_CNT)) {
+ if (qp->s_rnr_retry == 0) {
+ status = IB_WC_RNR_RETRY_EXC_ERR;
+ goto class_b;
+ }
+ if (qp->s_rnr_retry_cnt < 7 && qp->s_rnr_retry_cnt > 0)
+ qp->s_rnr_retry--;
}
- if (qp->s_rnr_retry_cnt < 7 && qp->s_rnr_retry_cnt > 0)
- qp->s_rnr_retry--;
/*
* The last valid PSN is the previous PSN. For TID RDMA WRITE
diff --git a/drivers/infiniband/hw/hfi1/tid_rdma.c b/drivers/infiniband/hw/hfi1/tid_rdma.c
index f21fca3..e53f542 100644
--- a/drivers/infiniband/hw/hfi1/tid_rdma.c
+++ b/drivers/infiniband/hw/hfi1/tid_rdma.c
@@ -107,8 +107,6 @@ static u32 mask_generation(u32 a)
* C - Capcode
*/
-static u32 tid_rdma_flow_wt;
-
static void tid_rdma_trigger_resume(struct work_struct *work);
static void hfi1_kern_exp_rcv_free_flows(struct tid_rdma_request *req);
static int hfi1_kern_exp_rcv_alloc_flows(struct tid_rdma_request *req,
@@ -136,6 +134,26 @@ static void update_r_next_psn_fecn(struct hfi1_packet *packet,
struct tid_rdma_flow *flow,
bool fecn);
+static void validate_r_tid_ack(struct hfi1_qp_priv *priv)
+{
+ if (priv->r_tid_ack == HFI1_QP_WQE_INVALID)
+ priv->r_tid_ack = priv->r_tid_tail;
+}
+
+static void tid_rdma_schedule_ack(struct rvt_qp *qp)
+{
+ struct hfi1_qp_priv *priv = qp->priv;
+
+ priv->s_flags |= RVT_S_ACK_PENDING;
+ hfi1_schedule_tid_send(qp);
+}
+
+static void tid_rdma_trigger_ack(struct rvt_qp *qp)
+{
+ validate_r_tid_ack(qp->priv);
+ tid_rdma_schedule_ack(qp);
+}
+
static u64 tid_rdma_opfn_encode(struct tid_rdma_params *p)
{
return
@@ -3005,10 +3023,7 @@ bool hfi1_handle_kdeth_eflags(struct hfi1_ctxtdata *rcd,
qpriv->s_nak_state = IB_NAK_PSN_ERROR;
/* We are NAK'ing the next expected PSN */
qpriv->s_nak_psn = mask_psn(flow->flow_state.r_next_psn);
- qpriv->s_flags |= RVT_S_ACK_PENDING;
- if (qpriv->r_tid_ack == HFI1_QP_WQE_INVALID)
- qpriv->r_tid_ack = qpriv->r_tid_tail;
- hfi1_schedule_tid_send(qp);
+ tid_rdma_trigger_ack(qp);
}
goto unlock;
}
@@ -3371,18 +3386,17 @@ u32 hfi1_build_tid_rdma_write_req(struct rvt_qp *qp, struct rvt_swqe *wqe,
return sizeof(ohdr->u.tid_rdma.w_req) / sizeof(u32);
}
-void hfi1_compute_tid_rdma_flow_wt(void)
+static u32 hfi1_compute_tid_rdma_flow_wt(struct rvt_qp *qp)
{
/*
* Heuristic for computing the RNR timeout when waiting on the flow
* queue. Rather than a computationaly expensive exact estimate of when
* a flow will be available, we assume that if a QP is at position N in
* the flow queue it has to wait approximately (N + 1) * (number of
- * segments between two sync points), assuming PMTU of 4K. The rationale
- * for this is that flows are released and recycled at each sync point.
+ * segments between two sync points). The rationale for this is that
+ * flows are released and recycled at each sync point.
*/
- tid_rdma_flow_wt = MAX_TID_FLOW_PSN * enum_to_mtu(OPA_MTU_4096) /
- TID_RDMA_MAX_SEGMENT_SIZE;
+ return (MAX_TID_FLOW_PSN * qp->pmtu) >> TID_RDMA_SEGMENT_SHIFT;
}
static u32 position_in_queue(struct hfi1_qp_priv *qpriv,
@@ -3505,7 +3519,7 @@ static void hfi1_tid_write_alloc_resources(struct rvt_qp *qp, bool intr_ctx)
if (qpriv->flow_state.index >= RXE_NUM_TID_FLOWS) {
ret = hfi1_kern_setup_hw_flow(qpriv->rcd, qp);
if (ret) {
- to_seg = tid_rdma_flow_wt *
+ to_seg = hfi1_compute_tid_rdma_flow_wt(qp) *
position_in_queue(qpriv,
&rcd->flow_queue);
break;
@@ -3526,7 +3540,7 @@ static void hfi1_tid_write_alloc_resources(struct rvt_qp *qp, bool intr_ctx)
/*
* If overtaking req->acked_tail, send an RNR NAK. Because the
* QP is not queued in this case, and the issue can only be
- * caused due a delay in scheduling the second leg which we
+ * caused by a delay in scheduling the second leg which we
* cannot estimate, we use a rather arbitrary RNR timeout of
* (MAX_FLOWS / 2) segments
*/
@@ -3534,8 +3548,7 @@ static void hfi1_tid_write_alloc_resources(struct rvt_qp *qp, bool intr_ctx)
MAX_FLOWS)) {
ret = -EAGAIN;
to_seg = MAX_FLOWS >> 1;
- qpriv->s_flags |= RVT_S_ACK_PENDING;
- hfi1_schedule_tid_send(qp);
+ tid_rdma_trigger_ack(qp);
break;
}
@@ -4335,8 +4348,7 @@ void hfi1_rc_rcv_tid_rdma_write_data(struct hfi1_packet *packet)
trace_hfi1_tid_req_rcv_write_data(qp, 0, e->opcode, e->psn, e->lpsn,
req);
trace_hfi1_tid_write_rsp_rcv_data(qp);
- if (priv->r_tid_ack == HFI1_QP_WQE_INVALID)
- priv->r_tid_ack = priv->r_tid_tail;
+ validate_r_tid_ack(priv);
if (opcode == TID_OP(WRITE_DATA_LAST)) {
release_rdma_sge_mr(e);
@@ -4375,8 +4387,7 @@ void hfi1_rc_rcv_tid_rdma_write_data(struct hfi1_packet *packet)
}
done:
- priv->s_flags |= RVT_S_ACK_PENDING;
- hfi1_schedule_tid_send(qp);
+ tid_rdma_schedule_ack(qp);
exit:
priv->r_next_psn_kdeth = flow->flow_state.r_next_psn;
if (fecn)
@@ -4388,10 +4399,7 @@ void hfi1_rc_rcv_tid_rdma_write_data(struct hfi1_packet *packet)
if (!priv->s_nak_state) {
priv->s_nak_state = IB_NAK_PSN_ERROR;
priv->s_nak_psn = flow->flow_state.r_next_psn;
- priv->s_flags |= RVT_S_ACK_PENDING;
- if (priv->r_tid_ack == HFI1_QP_WQE_INVALID)
- priv->r_tid_ack = priv->r_tid_tail;
- hfi1_schedule_tid_send(qp);
+ tid_rdma_trigger_ack(qp);
}
goto done;
}
@@ -4939,8 +4947,7 @@ void hfi1_rc_rcv_tid_rdma_resync(struct hfi1_packet *packet)
qpriv->resync = true;
/* RESYNC request always gets a TID RDMA ACK. */
qpriv->s_nak_state = 0;
- qpriv->s_flags |= RVT_S_ACK_PENDING;
- hfi1_schedule_tid_send(qp);
+ tid_rdma_trigger_ack(qp);
bail:
if (fecn)
qp->s_flags |= RVT_S_ECN;
diff --git a/drivers/infiniband/hw/hfi1/tid_rdma.h b/drivers/infiniband/hw/hfi1/tid_rdma.h
index 1c53618..6e82df2 100644
--- a/drivers/infiniband/hw/hfi1/tid_rdma.h
+++ b/drivers/infiniband/hw/hfi1/tid_rdma.h
@@ -17,6 +17,7 @@
#define TID_RDMA_MIN_SEGMENT_SIZE BIT(18) /* 256 KiB (for now) */
#define TID_RDMA_MAX_SEGMENT_SIZE BIT(18) /* 256 KiB (for now) */
#define TID_RDMA_MAX_PAGES (BIT(18) >> PAGE_SHIFT)
+#define TID_RDMA_SEGMENT_SHIFT 18
/*
* Bit definitions for priv->s_flags.
@@ -274,8 +275,6 @@ u32 hfi1_build_tid_rdma_write_req(struct rvt_qp *qp, struct rvt_swqe *wqe,
struct ib_other_headers *ohdr,
u32 *bth1, u32 *bth2, u32 *len);
-void hfi1_compute_tid_rdma_flow_wt(void);
-
void hfi1_rc_rcv_tid_rdma_write_req(struct hfi1_packet *packet);
u32 hfi1_build_tid_rdma_write_resp(struct rvt_qp *qp, struct rvt_ack_entry *e,
diff --git a/drivers/infiniband/hw/hns/hns_roce_hem.h b/drivers/infiniband/hw/hns/hns_roce_hem.h
index 8678327..3bb8f78 100644
--- a/drivers/infiniband/hw/hns/hns_roce_hem.h
+++ b/drivers/infiniband/hw/hns/hns_roce_hem.h
@@ -59,7 +59,7 @@ enum {
#define HNS_ROCE_HEM_CHUNK_LEN \
((256 - sizeof(struct list_head) - 2 * sizeof(int)) / \
- (sizeof(struct scatterlist)))
+ (sizeof(struct scatterlist) + sizeof(void *)))
#define check_whether_bt_num_3(type, hop_num) \
(type < HEM_TYPE_MTT && hop_num == 2)
diff --git a/drivers/infiniband/hw/hns/hns_roce_srq.c b/drivers/infiniband/hw/hns/hns_roce_srq.c
index 9591457..43ea2c1 100644
--- a/drivers/infiniband/hw/hns/hns_roce_srq.c
+++ b/drivers/infiniband/hw/hns/hns_roce_srq.c
@@ -376,7 +376,7 @@ int hns_roce_create_srq(struct ib_srq *ib_srq,
srq->max = roundup_pow_of_two(srq_init_attr->attr.max_wr + 1);
srq->max_gs = srq_init_attr->attr.max_sge;
- srq_desc_size = max(16, 16 * srq->max_gs);
+ srq_desc_size = roundup_pow_of_two(max(16, 16 * srq->max_gs));
srq->wqe_shift = ilog2(srq_desc_size);
diff --git a/drivers/input/ff-memless.c b/drivers/input/ff-memless.c
index 1cb40c7..8229a90 100644
--- a/drivers/input/ff-memless.c
+++ b/drivers/input/ff-memless.c
@@ -489,6 +489,15 @@ static void ml_ff_destroy(struct ff_device *ff)
{
struct ml_device *ml = ff->private;
+ /*
+ * Even though we stop all playing effects when tearing down
+ * an input device (via input_device_flush() that calls into
+ * input_ff_flush() that stops and erases all effects), we
+ * do not actually stop the timer, and therefore we should
+ * do it here.
+ */
+ del_timer_sync(&ml->timer);
+
kfree(ml->private);
}
diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c
index 56fae34..704558d 100644
--- a/drivers/input/mouse/synaptics.c
+++ b/drivers/input/mouse/synaptics.c
@@ -177,6 +177,7 @@ static const char * const smbus_pnp_ids[] = {
"LEN0096", /* X280 */
"LEN0097", /* X280 -> ALPS trackpoint */
"LEN009b", /* T580 */
+ "LEN0402", /* X1 Extreme 2nd Generation */
"LEN200f", /* T450s */
"LEN2054", /* E480 */
"LEN2055", /* E580 */
diff --git a/drivers/input/rmi4/rmi_f11.c b/drivers/input/rmi4/rmi_f11.c
index f28a715..bbf9ae9 100644
--- a/drivers/input/rmi4/rmi_f11.c
+++ b/drivers/input/rmi4/rmi_f11.c
@@ -510,7 +510,6 @@ struct f11_data {
struct rmi_2d_sensor_platform_data sensor_pdata;
unsigned long *abs_mask;
unsigned long *rel_mask;
- unsigned long *result_bits;
};
enum f11_finger_state {
@@ -1057,7 +1056,7 @@ static int rmi_f11_initialize(struct rmi_function *fn)
/*
** init instance data, fill in values and create any sysfs files
*/
- f11 = devm_kzalloc(&fn->dev, sizeof(struct f11_data) + mask_size * 3,
+ f11 = devm_kzalloc(&fn->dev, sizeof(struct f11_data) + mask_size * 2,
GFP_KERNEL);
if (!f11)
return -ENOMEM;
@@ -1076,8 +1075,6 @@ static int rmi_f11_initialize(struct rmi_function *fn)
+ sizeof(struct f11_data));
f11->rel_mask = (unsigned long *)((char *)f11
+ sizeof(struct f11_data) + mask_size);
- f11->result_bits = (unsigned long *)((char *)f11
- + sizeof(struct f11_data) + mask_size * 2);
set_bit(fn->irq_pos, f11->abs_mask);
set_bit(fn->irq_pos + 1, f11->rel_mask);
@@ -1284,8 +1281,8 @@ static irqreturn_t rmi_f11_attention(int irq, void *ctx)
valid_bytes = f11->sensor.attn_size;
memcpy(f11->sensor.data_pkt, drvdata->attn_data.data,
valid_bytes);
- drvdata->attn_data.data += f11->sensor.attn_size;
- drvdata->attn_data.size -= f11->sensor.attn_size;
+ drvdata->attn_data.data += valid_bytes;
+ drvdata->attn_data.size -= valid_bytes;
} else {
error = rmi_read_block(rmi_dev,
data_base_addr, f11->sensor.data_pkt,
diff --git a/drivers/input/rmi4/rmi_f12.c b/drivers/input/rmi4/rmi_f12.c
index d20a5d6..7e97944 100644
--- a/drivers/input/rmi4/rmi_f12.c
+++ b/drivers/input/rmi4/rmi_f12.c
@@ -55,6 +55,9 @@ struct f12_data {
const struct rmi_register_desc_item *data15;
u16 data15_offset;
+
+ unsigned long *abs_mask;
+ unsigned long *rel_mask;
};
static int rmi_f12_read_sensor_tuning(struct f12_data *f12)
@@ -209,8 +212,8 @@ static irqreturn_t rmi_f12_attention(int irq, void *ctx)
valid_bytes = sensor->attn_size;
memcpy(sensor->data_pkt, drvdata->attn_data.data,
valid_bytes);
- drvdata->attn_data.data += sensor->attn_size;
- drvdata->attn_data.size -= sensor->attn_size;
+ drvdata->attn_data.data += valid_bytes;
+ drvdata->attn_data.size -= valid_bytes;
} else {
retval = rmi_read_block(rmi_dev, f12->data_addr,
sensor->data_pkt, sensor->pkt_size);
@@ -291,9 +294,18 @@ static int rmi_f12_write_control_regs(struct rmi_function *fn)
static int rmi_f12_config(struct rmi_function *fn)
{
struct rmi_driver *drv = fn->rmi_dev->driver;
+ struct f12_data *f12 = dev_get_drvdata(&fn->dev);
+ struct rmi_2d_sensor *sensor;
int ret;
- drv->set_irq_bits(fn->rmi_dev, fn->irq_mask);
+ sensor = &f12->sensor;
+
+ if (!sensor->report_abs)
+ drv->clear_irq_bits(fn->rmi_dev, f12->abs_mask);
+ else
+ drv->set_irq_bits(fn->rmi_dev, f12->abs_mask);
+
+ drv->clear_irq_bits(fn->rmi_dev, f12->rel_mask);
ret = rmi_f12_write_control_regs(fn);
if (ret)
@@ -315,9 +327,12 @@ static int rmi_f12_probe(struct rmi_function *fn)
struct rmi_device_platform_data *pdata = rmi_get_platform_data(rmi_dev);
struct rmi_driver_data *drvdata = dev_get_drvdata(&rmi_dev->dev);
u16 data_offset = 0;
+ int mask_size;
rmi_dbg(RMI_DEBUG_FN, &fn->dev, "%s\n", __func__);
+ mask_size = BITS_TO_LONGS(drvdata->irq_count) * sizeof(unsigned long);
+
ret = rmi_read(fn->rmi_dev, query_addr, &buf);
if (ret < 0) {
dev_err(&fn->dev, "Failed to read general info register: %d\n",
@@ -332,10 +347,19 @@ static int rmi_f12_probe(struct rmi_function *fn)
return -ENODEV;
}
- f12 = devm_kzalloc(&fn->dev, sizeof(struct f12_data), GFP_KERNEL);
+ f12 = devm_kzalloc(&fn->dev, sizeof(struct f12_data) + mask_size * 2,
+ GFP_KERNEL);
if (!f12)
return -ENOMEM;
+ f12->abs_mask = (unsigned long *)((char *)f12
+ + sizeof(struct f12_data));
+ f12->rel_mask = (unsigned long *)((char *)f12
+ + sizeof(struct f12_data) + mask_size);
+
+ set_bit(fn->irq_pos, f12->abs_mask);
+ set_bit(fn->irq_pos + 1, f12->rel_mask);
+
f12->has_dribble = !!(buf & BIT(3));
if (fn->dev.of_node) {
diff --git a/drivers/input/rmi4/rmi_f54.c b/drivers/input/rmi4/rmi_f54.c
index 710b025..897105b 100644
--- a/drivers/input/rmi4/rmi_f54.c
+++ b/drivers/input/rmi4/rmi_f54.c
@@ -359,7 +359,7 @@ static const struct vb2_ops rmi_f54_queue_ops = {
static const struct vb2_queue rmi_f54_queue = {
.type = V4L2_BUF_TYPE_VIDEO_CAPTURE,
.io_modes = VB2_MMAP | VB2_USERPTR | VB2_DMABUF | VB2_READ,
- .buf_struct_size = sizeof(struct vb2_buffer),
+ .buf_struct_size = sizeof(struct vb2_v4l2_buffer),
.ops = &rmi_f54_queue_ops,
.mem_ops = &vb2_vmalloc_memops,
.timestamp_flags = V4L2_BUF_FLAG_TIMESTAMP_MONOTONIC,
@@ -601,7 +601,7 @@ static int rmi_f54_config(struct rmi_function *fn)
{
struct rmi_driver *drv = fn->rmi_dev->driver;
- drv->set_irq_bits(fn->rmi_dev, fn->irq_mask);
+ drv->clear_irq_bits(fn->rmi_dev, fn->irq_mask);
return 0;
}
@@ -730,6 +730,7 @@ static void rmi_f54_remove(struct rmi_function *fn)
video_unregister_device(&f54->vdev);
v4l2_device_unregister(&f54->v4l2);
+ destroy_workqueue(f54->workqueue);
}
struct rmi_function_handler rmi_f54_handler = {
diff --git a/drivers/input/touchscreen/cyttsp4_core.c b/drivers/input/touchscreen/cyttsp4_core.c
index 4b22d49..6bcffc9 100644
--- a/drivers/input/touchscreen/cyttsp4_core.c
+++ b/drivers/input/touchscreen/cyttsp4_core.c
@@ -1990,11 +1990,6 @@ static int cyttsp4_mt_probe(struct cyttsp4 *cd)
/* get sysinfo */
md->si = &cd->sysinfo;
- if (!md->si) {
- dev_err(dev, "%s: Fail get sysinfo pointer from core p=%p\n",
- __func__, md->si);
- goto error_get_sysinfo;
- }
rc = cyttsp4_setup_input_device(cd);
if (rc)
@@ -2004,8 +1999,6 @@ static int cyttsp4_mt_probe(struct cyttsp4 *cd)
error_init_input:
input_free_device(md->input);
-error_get_sysinfo:
- input_set_drvdata(md->input, NULL);
error_alloc_failed:
dev_err(dev, "%s failed.\n", __func__);
return rc;
diff --git a/drivers/interconnect/core.c b/drivers/interconnect/core.c
index 7b97122..c498796 100644
--- a/drivers/interconnect/core.c
+++ b/drivers/interconnect/core.c
@@ -405,8 +405,12 @@ void icc_set_tag(struct icc_path *path, u32 tag)
if (!path)
return;
+ mutex_lock(&icc_lock);
+
for (i = 0; i < path->num_nodes; i++)
path->reqs[i].tag = tag;
+
+ mutex_unlock(&icc_lock);
}
EXPORT_SYMBOL_GPL(icc_set_tag);
diff --git a/drivers/interconnect/qcom/qcs404.c b/drivers/interconnect/qcom/qcs404.c
index 910081d..b4966d8 100644
--- a/drivers/interconnect/qcom/qcs404.c
+++ b/drivers/interconnect/qcom/qcs404.c
@@ -433,7 +433,8 @@ static int qnoc_probe(struct platform_device *pdev)
if (!qp)
return -ENOMEM;
- data = devm_kcalloc(dev, num_nodes, sizeof(*node), GFP_KERNEL);
+ data = devm_kzalloc(dev, struct_size(data, nodes, num_nodes),
+ GFP_KERNEL);
if (!data)
return -ENOMEM;
diff --git a/drivers/interconnect/qcom/sdm845.c b/drivers/interconnect/qcom/sdm845.c
index 5795559..502a6c2 100644
--- a/drivers/interconnect/qcom/sdm845.c
+++ b/drivers/interconnect/qcom/sdm845.c
@@ -790,7 +790,8 @@ static int qnoc_probe(struct platform_device *pdev)
if (!qp)
return -ENOMEM;
- data = devm_kcalloc(&pdev->dev, num_nodes, sizeof(*node), GFP_KERNEL);
+ data = devm_kzalloc(&pdev->dev, struct_size(data, nodes, num_nodes),
+ GFP_KERNEL);
if (!data)
return -ENOMEM;
diff --git a/drivers/mmc/host/sdhci-of-at91.c b/drivers/mmc/host/sdhci-of-at91.c
index e7d1920..0ae986c 100644
--- a/drivers/mmc/host/sdhci-of-at91.c
+++ b/drivers/mmc/host/sdhci-of-at91.c
@@ -358,7 +358,7 @@ static int sdhci_at91_probe(struct platform_device *pdev)
pm_runtime_use_autosuspend(&pdev->dev);
/* HS200 is broken at this moment */
- host->quirks2 = SDHCI_QUIRK2_BROKEN_HS200;
+ host->quirks2 |= SDHCI_QUIRK2_BROKEN_HS200;
ret = sdhci_add_host(host);
if (ret)
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 480f945..62f6557 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -2083,8 +2083,7 @@ static int bond_miimon_inspect(struct bonding *bond)
ignore_updelay = !rcu_dereference(bond->curr_active_slave);
bond_for_each_slave_rcu(bond, slave, iter) {
- slave->new_link = BOND_LINK_NOCHANGE;
- slave->link_new_state = slave->link;
+ bond_propose_link_state(slave, BOND_LINK_NOCHANGE);
link_state = bond_check_dev_link(bond, slave->dev, 0);
@@ -2118,7 +2117,7 @@ static int bond_miimon_inspect(struct bonding *bond)
}
if (slave->delay <= 0) {
- slave->new_link = BOND_LINK_DOWN;
+ bond_propose_link_state(slave, BOND_LINK_DOWN);
commit++;
continue;
}
@@ -2155,7 +2154,7 @@ static int bond_miimon_inspect(struct bonding *bond)
slave->delay = 0;
if (slave->delay <= 0) {
- slave->new_link = BOND_LINK_UP;
+ bond_propose_link_state(slave, BOND_LINK_UP);
commit++;
ignore_updelay = false;
continue;
@@ -2193,7 +2192,7 @@ static void bond_miimon_commit(struct bonding *bond)
struct slave *slave, *primary;
bond_for_each_slave(bond, slave, iter) {
- switch (slave->new_link) {
+ switch (slave->link_new_state) {
case BOND_LINK_NOCHANGE:
/* For 802.3ad mode, check current slave speed and
* duplex again in case its port was disabled after
@@ -2265,8 +2264,8 @@ static void bond_miimon_commit(struct bonding *bond)
default:
slave_err(bond->dev, slave->dev, "invalid new link %d on slave\n",
- slave->new_link);
- slave->new_link = BOND_LINK_NOCHANGE;
+ slave->link_new_state);
+ bond_propose_link_state(slave, BOND_LINK_NOCHANGE);
continue;
}
@@ -2674,13 +2673,13 @@ static void bond_loadbalance_arp_mon(struct bonding *bond)
bond_for_each_slave_rcu(bond, slave, iter) {
unsigned long trans_start = dev_trans_start(slave->dev);
- slave->new_link = BOND_LINK_NOCHANGE;
+ bond_propose_link_state(slave, BOND_LINK_NOCHANGE);
if (slave->link != BOND_LINK_UP) {
if (bond_time_in_interval(bond, trans_start, 1) &&
bond_time_in_interval(bond, slave->last_rx, 1)) {
- slave->new_link = BOND_LINK_UP;
+ bond_propose_link_state(slave, BOND_LINK_UP);
slave_state_changed = 1;
/* primary_slave has no meaning in round-robin
@@ -2705,7 +2704,7 @@ static void bond_loadbalance_arp_mon(struct bonding *bond)
if (!bond_time_in_interval(bond, trans_start, 2) ||
!bond_time_in_interval(bond, slave->last_rx, 2)) {
- slave->new_link = BOND_LINK_DOWN;
+ bond_propose_link_state(slave, BOND_LINK_DOWN);
slave_state_changed = 1;
if (slave->link_failure_count < UINT_MAX)
@@ -2736,8 +2735,8 @@ static void bond_loadbalance_arp_mon(struct bonding *bond)
goto re_arm;
bond_for_each_slave(bond, slave, iter) {
- if (slave->new_link != BOND_LINK_NOCHANGE)
- slave->link = slave->new_link;
+ if (slave->link_new_state != BOND_LINK_NOCHANGE)
+ slave->link = slave->link_new_state;
}
if (slave_state_changed) {
@@ -2760,9 +2759,9 @@ static void bond_loadbalance_arp_mon(struct bonding *bond)
}
/* Called to inspect slaves for active-backup mode ARP monitor link state
- * changes. Sets new_link in slaves to specify what action should take
- * place for the slave. Returns 0 if no changes are found, >0 if changes
- * to link states must be committed.
+ * changes. Sets proposed link state in slaves to specify what action
+ * should take place for the slave. Returns 0 if no changes are found, >0
+ * if changes to link states must be committed.
*
* Called with rcu_read_lock held.
*/
@@ -2774,12 +2773,12 @@ static int bond_ab_arp_inspect(struct bonding *bond)
int commit = 0;
bond_for_each_slave_rcu(bond, slave, iter) {
- slave->new_link = BOND_LINK_NOCHANGE;
+ bond_propose_link_state(slave, BOND_LINK_NOCHANGE);
last_rx = slave_last_rx(bond, slave);
if (slave->link != BOND_LINK_UP) {
if (bond_time_in_interval(bond, last_rx, 1)) {
- slave->new_link = BOND_LINK_UP;
+ bond_propose_link_state(slave, BOND_LINK_UP);
commit++;
}
continue;
@@ -2807,7 +2806,7 @@ static int bond_ab_arp_inspect(struct bonding *bond)
if (!bond_is_active_slave(slave) &&
!rcu_access_pointer(bond->current_arp_slave) &&
!bond_time_in_interval(bond, last_rx, 3)) {
- slave->new_link = BOND_LINK_DOWN;
+ bond_propose_link_state(slave, BOND_LINK_DOWN);
commit++;
}
@@ -2820,7 +2819,7 @@ static int bond_ab_arp_inspect(struct bonding *bond)
if (bond_is_active_slave(slave) &&
(!bond_time_in_interval(bond, trans_start, 2) ||
!bond_time_in_interval(bond, last_rx, 2))) {
- slave->new_link = BOND_LINK_DOWN;
+ bond_propose_link_state(slave, BOND_LINK_DOWN);
commit++;
}
}
@@ -2840,7 +2839,7 @@ static void bond_ab_arp_commit(struct bonding *bond)
struct slave *slave;
bond_for_each_slave(bond, slave, iter) {
- switch (slave->new_link) {
+ switch (slave->link_new_state) {
case BOND_LINK_NOCHANGE:
continue;
@@ -2890,8 +2889,9 @@ static void bond_ab_arp_commit(struct bonding *bond)
continue;
default:
- slave_err(bond->dev, slave->dev, "impossible: new_link %d on slave\n",
- slave->new_link);
+ slave_err(bond->dev, slave->dev,
+ "impossible: link_new_state %d on slave\n",
+ slave->link_new_state);
continue;
}
diff --git a/drivers/net/can/c_can/c_can.c b/drivers/net/can/c_can/c_can.c
index 606b7d8..8e9f562 100644
--- a/drivers/net/can/c_can/c_can.c
+++ b/drivers/net/can/c_can/c_can.c
@@ -52,6 +52,7 @@
#define CONTROL_EX_PDR BIT(8)
/* control register */
+#define CONTROL_SWR BIT(15)
#define CONTROL_TEST BIT(7)
#define CONTROL_CCE BIT(6)
#define CONTROL_DISABLE_AR BIT(5)
@@ -97,6 +98,9 @@
#define BTR_TSEG2_SHIFT 12
#define BTR_TSEG2_MASK (0x7 << BTR_TSEG2_SHIFT)
+/* interrupt register */
+#define INT_STS_PENDING 0x8000
+
/* brp extension register */
#define BRP_EXT_BRPE_MASK 0x0f
#define BRP_EXT_BRPE_SHIFT 0
@@ -569,6 +573,26 @@ static void c_can_configure_msg_objects(struct net_device *dev)
IF_MCONT_RCV_EOB);
}
+static int c_can_software_reset(struct net_device *dev)
+{
+ struct c_can_priv *priv = netdev_priv(dev);
+ int retry = 0;
+
+ if (priv->type != BOSCH_D_CAN)
+ return 0;
+
+ priv->write_reg(priv, C_CAN_CTRL_REG, CONTROL_SWR | CONTROL_INIT);
+ while (priv->read_reg(priv, C_CAN_CTRL_REG) & CONTROL_SWR) {
+ msleep(20);
+ if (retry++ > 100) {
+ netdev_err(dev, "CCTRL: software reset failed\n");
+ return -EIO;
+ }
+ }
+
+ return 0;
+}
+
/*
* Configure C_CAN chip:
* - enable/disable auto-retransmission
@@ -578,6 +602,11 @@ static void c_can_configure_msg_objects(struct net_device *dev)
static int c_can_chip_config(struct net_device *dev)
{
struct c_can_priv *priv = netdev_priv(dev);
+ int err;
+
+ err = c_can_software_reset(dev);
+ if (err)
+ return err;
/* enable automatic retransmission */
priv->write_reg(priv, C_CAN_CTRL_REG, CONTROL_ENABLE_AR);
@@ -886,6 +915,9 @@ static int c_can_handle_state_change(struct net_device *dev,
struct can_berr_counter bec;
switch (error_type) {
+ case C_CAN_NO_ERROR:
+ priv->can.state = CAN_STATE_ERROR_ACTIVE;
+ break;
case C_CAN_ERROR_WARNING:
/* error warning state */
priv->can.can_stats.error_warning++;
@@ -916,6 +948,13 @@ static int c_can_handle_state_change(struct net_device *dev,
ERR_CNT_RP_SHIFT;
switch (error_type) {
+ case C_CAN_NO_ERROR:
+ /* error warning state */
+ cf->can_id |= CAN_ERR_CRTL;
+ cf->data[1] = CAN_ERR_CRTL_ACTIVE;
+ cf->data[6] = bec.txerr;
+ cf->data[7] = bec.rxerr;
+ break;
case C_CAN_ERROR_WARNING:
/* error warning state */
cf->can_id |= CAN_ERR_CRTL;
@@ -1029,10 +1068,16 @@ static int c_can_poll(struct napi_struct *napi, int quota)
u16 curr, last = priv->last_status;
int work_done = 0;
- priv->last_status = curr = priv->read_reg(priv, C_CAN_STS_REG);
- /* Ack status on C_CAN. D_CAN is self clearing */
- if (priv->type != BOSCH_D_CAN)
- priv->write_reg(priv, C_CAN_STS_REG, LEC_UNUSED);
+ /* Only read the status register if a status interrupt was pending */
+ if (atomic_xchg(&priv->sie_pending, 0)) {
+ priv->last_status = curr = priv->read_reg(priv, C_CAN_STS_REG);
+ /* Ack status on C_CAN. D_CAN is self clearing */
+ if (priv->type != BOSCH_D_CAN)
+ priv->write_reg(priv, C_CAN_STS_REG, LEC_UNUSED);
+ } else {
+ /* no change detected ... */
+ curr = last;
+ }
/* handle state changes */
if ((curr & STATUS_EWARN) && (!(last & STATUS_EWARN))) {
@@ -1054,11 +1099,17 @@ static int c_can_poll(struct napi_struct *napi, int quota)
/* handle bus recovery events */
if ((!(curr & STATUS_BOFF)) && (last & STATUS_BOFF)) {
netdev_dbg(dev, "left bus off state\n");
- priv->can.state = CAN_STATE_ERROR_ACTIVE;
+ work_done += c_can_handle_state_change(dev, C_CAN_ERROR_PASSIVE);
}
+
if ((!(curr & STATUS_EPASS)) && (last & STATUS_EPASS)) {
netdev_dbg(dev, "left error passive state\n");
- priv->can.state = CAN_STATE_ERROR_ACTIVE;
+ work_done += c_can_handle_state_change(dev, C_CAN_ERROR_WARNING);
+ }
+
+ if ((!(curr & STATUS_EWARN)) && (last & STATUS_EWARN)) {
+ netdev_dbg(dev, "left error warning state\n");
+ work_done += c_can_handle_state_change(dev, C_CAN_NO_ERROR);
}
/* handle lec errors on the bus */
@@ -1083,10 +1134,16 @@ static irqreturn_t c_can_isr(int irq, void *dev_id)
{
struct net_device *dev = (struct net_device *)dev_id;
struct c_can_priv *priv = netdev_priv(dev);
+ int reg_int;
- if (!priv->read_reg(priv, C_CAN_INT_REG))
+ reg_int = priv->read_reg(priv, C_CAN_INT_REG);
+ if (!reg_int)
return IRQ_NONE;
+ /* save for later use */
+ if (reg_int & INT_STS_PENDING)
+ atomic_set(&priv->sie_pending, 1);
+
/* disable all interrupts and schedule the NAPI */
c_can_irq_control(priv, false);
napi_schedule(&priv->napi);
diff --git a/drivers/net/can/c_can/c_can.h b/drivers/net/can/c_can/c_can.h
index 8acdc7f..d5567a7 100644
--- a/drivers/net/can/c_can/c_can.h
+++ b/drivers/net/can/c_can/c_can.h
@@ -198,6 +198,7 @@ struct c_can_priv {
struct net_device *dev;
struct device *device;
atomic_t tx_active;
+ atomic_t sie_pending;
unsigned long tx_dir;
int last_status;
u16 (*read_reg) (const struct c_can_priv *priv, enum reg index);
diff --git a/drivers/net/can/dev.c b/drivers/net/can/dev.c
index ac86be5..1c88c36 100644
--- a/drivers/net/can/dev.c
+++ b/drivers/net/can/dev.c
@@ -848,6 +848,7 @@ void of_can_transceiver(struct net_device *dev)
return;
ret = of_property_read_u32(dn, "max-bitrate", &priv->bitrate_max);
+ of_node_put(dn);
if ((ret && ret != -EINVAL) || (!ret && !priv->bitrate_max))
netdev_warn(dev, "Invalid value for transceiver max bitrate. Ignoring bitrate limit.\n");
}
diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c
index dc5695d..57f9a2f 100644
--- a/drivers/net/can/flexcan.c
+++ b/drivers/net/can/flexcan.c
@@ -677,6 +677,7 @@ static void flexcan_irq_bus_err(struct net_device *dev, u32 reg_esr)
struct can_frame *cf;
bool rx_errors = false, tx_errors = false;
u32 timestamp;
+ int err;
timestamp = priv->read(®s->timer) << 16;
@@ -725,7 +726,9 @@ static void flexcan_irq_bus_err(struct net_device *dev, u32 reg_esr)
if (tx_errors)
dev->stats.tx_errors++;
- can_rx_offload_queue_sorted(&priv->offload, skb, timestamp);
+ err = can_rx_offload_queue_sorted(&priv->offload, skb, timestamp);
+ if (err)
+ dev->stats.rx_fifo_errors++;
}
static void flexcan_irq_state(struct net_device *dev, u32 reg_esr)
@@ -738,6 +741,7 @@ static void flexcan_irq_state(struct net_device *dev, u32 reg_esr)
int flt;
struct can_berr_counter bec;
u32 timestamp;
+ int err;
timestamp = priv->read(®s->timer) << 16;
@@ -769,7 +773,9 @@ static void flexcan_irq_state(struct net_device *dev, u32 reg_esr)
if (unlikely(new_state == CAN_STATE_BUS_OFF))
can_bus_off(dev);
- can_rx_offload_queue_sorted(&priv->offload, skb, timestamp);
+ err = can_rx_offload_queue_sorted(&priv->offload, skb, timestamp);
+ if (err)
+ dev->stats.rx_fifo_errors++;
}
static inline struct flexcan_priv *rx_offload_to_priv(struct can_rx_offload *offload)
@@ -1188,6 +1194,7 @@ static int flexcan_chip_start(struct net_device *dev)
reg_mecr = priv->read(®s->mecr);
reg_mecr &= ~FLEXCAN_MECR_ECRWRDIS;
priv->write(reg_mecr, ®s->mecr);
+ reg_mecr |= FLEXCAN_MECR_ECCDIS;
reg_mecr &= ~(FLEXCAN_MECR_NCEFAFRZ | FLEXCAN_MECR_HANCEI_MSK |
FLEXCAN_MECR_FANCEI_MSK);
priv->write(reg_mecr, ®s->mecr);
diff --git a/drivers/net/can/rx-offload.c b/drivers/net/can/rx-offload.c
index e6a668e..84cae16 100644
--- a/drivers/net/can/rx-offload.c
+++ b/drivers/net/can/rx-offload.c
@@ -107,37 +107,95 @@ static int can_rx_offload_compare(struct sk_buff *a, struct sk_buff *b)
return cb_b->timestamp - cb_a->timestamp;
}
-static struct sk_buff *can_rx_offload_offload_one(struct can_rx_offload *offload, unsigned int n)
+/**
+ * can_rx_offload_offload_one() - Read one CAN frame from HW
+ * @offload: pointer to rx_offload context
+ * @n: number of mailbox to read
+ *
+ * The task of this function is to read a CAN frame from mailbox @n
+ * from the device and return the mailbox's content as a struct
+ * sk_buff.
+ *
+ * If the struct can_rx_offload::skb_queue exceeds the maximal queue
+ * length (struct can_rx_offload::skb_queue_len_max) or no skb can be
+ * allocated, the mailbox contents is discarded by reading it into an
+ * overflow buffer. This way the mailbox is marked as free by the
+ * driver.
+ *
+ * Return: A pointer to skb containing the CAN frame on success.
+ *
+ * NULL if the mailbox @n is empty.
+ *
+ * ERR_PTR() in case of an error
+ */
+static struct sk_buff *
+can_rx_offload_offload_one(struct can_rx_offload *offload, unsigned int n)
{
- struct sk_buff *skb = NULL;
+ struct sk_buff *skb = NULL, *skb_error = NULL;
struct can_rx_offload_cb *cb;
struct can_frame *cf;
int ret;
- /* If queue is full or skb not available, read to discard mailbox */
- if (likely(skb_queue_len(&offload->skb_queue) <=
- offload->skb_queue_len_max))
+ if (likely(skb_queue_len(&offload->skb_queue) <
+ offload->skb_queue_len_max)) {
skb = alloc_can_skb(offload->dev, &cf);
+ if (unlikely(!skb))
+ skb_error = ERR_PTR(-ENOMEM); /* skb alloc failed */
+ } else {
+ skb_error = ERR_PTR(-ENOBUFS); /* skb_queue is full */
+ }
- if (!skb) {
+ /* If queue is full or skb not available, drop by reading into
+ * overflow buffer.
+ */
+ if (unlikely(skb_error)) {
struct can_frame cf_overflow;
u32 timestamp;
ret = offload->mailbox_read(offload, &cf_overflow,
×tamp, n);
- if (ret)
- offload->dev->stats.rx_dropped++;
- return NULL;
+ /* Mailbox was empty. */
+ if (unlikely(!ret))
+ return NULL;
+
+ /* Mailbox has been read and we're dropping it or
+ * there was a problem reading the mailbox.
+ *
+ * Increment error counters in any case.
+ */
+ offload->dev->stats.rx_dropped++;
+ offload->dev->stats.rx_fifo_errors++;
+
+ /* There was a problem reading the mailbox, propagate
+ * error value.
+ */
+ if (unlikely(ret < 0))
+ return ERR_PTR(ret);
+
+ return skb_error;
}
cb = can_rx_offload_get_cb(skb);
ret = offload->mailbox_read(offload, cf, &cb->timestamp, n);
- if (!ret) {
+
+ /* Mailbox was empty. */
+ if (unlikely(!ret)) {
kfree_skb(skb);
return NULL;
}
+ /* There was a problem reading the mailbox, propagate error value. */
+ if (unlikely(ret < 0)) {
+ kfree_skb(skb);
+
+ offload->dev->stats.rx_dropped++;
+ offload->dev->stats.rx_fifo_errors++;
+
+ return ERR_PTR(ret);
+ }
+
+ /* Mailbox was read. */
return skb;
}
@@ -157,8 +215,8 @@ int can_rx_offload_irq_offload_timestamp(struct can_rx_offload *offload, u64 pen
continue;
skb = can_rx_offload_offload_one(offload, i);
- if (!skb)
- break;
+ if (IS_ERR_OR_NULL(skb))
+ continue;
__skb_queue_add_sort(&skb_queue, skb, can_rx_offload_compare);
}
@@ -188,7 +246,13 @@ int can_rx_offload_irq_offload_fifo(struct can_rx_offload *offload)
struct sk_buff *skb;
int received = 0;
- while ((skb = can_rx_offload_offload_one(offload, 0))) {
+ while (1) {
+ skb = can_rx_offload_offload_one(offload, 0);
+ if (IS_ERR(skb))
+ continue;
+ if (!skb)
+ break;
+
skb_queue_tail(&offload->skb_queue, skb);
received++;
}
@@ -207,8 +271,10 @@ int can_rx_offload_queue_sorted(struct can_rx_offload *offload,
unsigned long flags;
if (skb_queue_len(&offload->skb_queue) >
- offload->skb_queue_len_max)
- return -ENOMEM;
+ offload->skb_queue_len_max) {
+ kfree_skb(skb);
+ return -ENOBUFS;
+ }
cb = can_rx_offload_get_cb(skb);
cb->timestamp = timestamp;
@@ -250,8 +316,10 @@ int can_rx_offload_queue_tail(struct can_rx_offload *offload,
struct sk_buff *skb)
{
if (skb_queue_len(&offload->skb_queue) >
- offload->skb_queue_len_max)
- return -ENOMEM;
+ offload->skb_queue_len_max) {
+ kfree_skb(skb);
+ return -ENOBUFS;
+ }
skb_queue_tail(&offload->skb_queue, skb);
can_rx_offload_schedule(offload);
diff --git a/drivers/net/can/slcan.c b/drivers/net/can/slcan.c
index bb60322..0a9f42e 100644
--- a/drivers/net/can/slcan.c
+++ b/drivers/net/can/slcan.c
@@ -617,6 +617,7 @@ static int slcan_open(struct tty_struct *tty)
sl->tty = NULL;
tty->disc_data = NULL;
clear_bit(SLF_INUSE, &sl->flags);
+ free_netdev(sl->dev);
err_exit:
rtnl_unlock();
diff --git a/drivers/net/can/spi/mcp251x.c b/drivers/net/can/spi/mcp251x.c
index bee9f7b..bb20a9b 100644
--- a/drivers/net/can/spi/mcp251x.c
+++ b/drivers/net/can/spi/mcp251x.c
@@ -717,6 +717,7 @@ static void mcp251x_restart_work_handler(struct work_struct *ws)
if (priv->after_suspend) {
mcp251x_hw_reset(spi);
mcp251x_setup(net, spi);
+ priv->force_quit = 0;
if (priv->after_suspend & AFTER_SUSPEND_RESTART) {
mcp251x_set_normal_mode(spi);
} else if (priv->after_suspend & AFTER_SUSPEND_UP) {
@@ -728,7 +729,6 @@ static void mcp251x_restart_work_handler(struct work_struct *ws)
mcp251x_hw_sleep(spi);
}
priv->after_suspend = 0;
- priv->force_quit = 0;
}
if (priv->restart_tx) {
diff --git a/drivers/net/can/ti_hecc.c b/drivers/net/can/ti_hecc.c
index f8b19ee..31ad364 100644
--- a/drivers/net/can/ti_hecc.c
+++ b/drivers/net/can/ti_hecc.c
@@ -73,6 +73,7 @@ MODULE_VERSION(HECC_MODULE_VERSION);
*/
#define HECC_MAX_RX_MBOX (HECC_MAX_MAILBOXES - HECC_MAX_TX_MBOX)
#define HECC_RX_FIRST_MBOX (HECC_MAX_MAILBOXES - 1)
+#define HECC_RX_LAST_MBOX (HECC_MAX_TX_MBOX)
/* TI HECC module registers */
#define HECC_CANME 0x0 /* Mailbox enable */
@@ -82,7 +83,7 @@ MODULE_VERSION(HECC_MODULE_VERSION);
#define HECC_CANTA 0x10 /* Transmission acknowledge */
#define HECC_CANAA 0x14 /* Abort acknowledge */
#define HECC_CANRMP 0x18 /* Receive message pending */
-#define HECC_CANRML 0x1C /* Remote message lost */
+#define HECC_CANRML 0x1C /* Receive message lost */
#define HECC_CANRFP 0x20 /* Remote frame pending */
#define HECC_CANGAM 0x24 /* SECC only:Global acceptance mask */
#define HECC_CANMC 0x28 /* Master control */
@@ -149,6 +150,8 @@ MODULE_VERSION(HECC_MODULE_VERSION);
#define HECC_BUS_ERROR (HECC_CANES_FE | HECC_CANES_BE |\
HECC_CANES_CRCE | HECC_CANES_SE |\
HECC_CANES_ACKE)
+#define HECC_CANES_FLAGS (HECC_BUS_ERROR | HECC_CANES_BO |\
+ HECC_CANES_EP | HECC_CANES_EW)
#define HECC_CANMCF_RTR BIT(4) /* Remote transmit request */
@@ -382,8 +385,18 @@ static void ti_hecc_start(struct net_device *ndev)
hecc_set_bit(priv, HECC_CANMIM, mbx_mask);
}
- /* Prevent message over-write & Enable interrupts */
- hecc_write(priv, HECC_CANOPC, HECC_SET_REG);
+ /* Enable tx interrupts */
+ hecc_set_bit(priv, HECC_CANMIM, BIT(HECC_MAX_TX_MBOX) - 1);
+
+ /* Prevent message over-write to create a rx fifo, but not for
+ * the lowest priority mailbox, since that allows detecting
+ * overflows instead of the hardware silently dropping the
+ * messages.
+ */
+ mbx_mask = ~BIT(HECC_RX_LAST_MBOX);
+ hecc_write(priv, HECC_CANOPC, mbx_mask);
+
+ /* Enable interrupts */
if (priv->use_hecc1int) {
hecc_write(priv, HECC_CANMIL, HECC_SET_REG);
hecc_write(priv, HECC_CANGIM, HECC_CANGIM_DEF_MASK |
@@ -400,6 +413,9 @@ static void ti_hecc_stop(struct net_device *ndev)
{
struct ti_hecc_priv *priv = netdev_priv(ndev);
+ /* Disable the CPK; stop sending, erroring and acking */
+ hecc_set_bit(priv, HECC_CANMC, HECC_CANMC_CCR);
+
/* Disable interrupts and disable mailboxes */
hecc_write(priv, HECC_CANGIM, 0);
hecc_write(priv, HECC_CANMIM, 0);
@@ -508,8 +524,6 @@ static netdev_tx_t ti_hecc_xmit(struct sk_buff *skb, struct net_device *ndev)
hecc_set_bit(priv, HECC_CANME, mbx_mask);
spin_unlock_irqrestore(&priv->mbx_lock, flags);
- hecc_clear_bit(priv, HECC_CANMD, mbx_mask);
- hecc_set_bit(priv, HECC_CANMIM, mbx_mask);
hecc_write(priv, HECC_CANTRS, mbx_mask);
return NETDEV_TX_OK;
@@ -526,8 +540,10 @@ static unsigned int ti_hecc_mailbox_read(struct can_rx_offload *offload,
u32 *timestamp, unsigned int mbxno)
{
struct ti_hecc_priv *priv = rx_offload_to_priv(offload);
- u32 data;
+ u32 data, mbx_mask;
+ int ret = 1;
+ mbx_mask = BIT(mbxno);
data = hecc_read_mbx(priv, mbxno, HECC_CANMID);
if (data & HECC_CANMID_IDE)
cf->can_id = (data & CAN_EFF_MASK) | CAN_EFF_FLAG;
@@ -548,7 +564,25 @@ static unsigned int ti_hecc_mailbox_read(struct can_rx_offload *offload,
*timestamp = hecc_read_stamp(priv, mbxno);
- return 1;
+ /* Check for FIFO overrun.
+ *
+ * All but the last RX mailbox have activated overwrite
+ * protection. So skip check for overrun, if we're not
+ * handling the last RX mailbox.
+ *
+ * As the overwrite protection for the last RX mailbox is
+ * disabled, the CAN core might update while we're reading
+ * it. This means the skb might be inconsistent.
+ *
+ * Return an error to let rx-offload discard this CAN frame.
+ */
+ if (unlikely(mbxno == HECC_RX_LAST_MBOX &&
+ hecc_read(priv, HECC_CANRML) & mbx_mask))
+ ret = -ENOBUFS;
+
+ hecc_write(priv, HECC_CANRMP, mbx_mask);
+
+ return ret;
}
static int ti_hecc_error(struct net_device *ndev, int int_status,
@@ -558,90 +592,71 @@ static int ti_hecc_error(struct net_device *ndev, int int_status,
struct can_frame *cf;
struct sk_buff *skb;
u32 timestamp;
-
- /* propagate the error condition to the can stack */
- skb = alloc_can_err_skb(ndev, &cf);
- if (!skb) {
- if (printk_ratelimit())
- netdev_err(priv->ndev,
- "%s: alloc_can_err_skb() failed\n",
- __func__);
- return -ENOMEM;
- }
-
- if (int_status & HECC_CANGIF_WLIF) { /* warning level int */
- if ((int_status & HECC_CANGIF_BOIF) == 0) {
- priv->can.state = CAN_STATE_ERROR_WARNING;
- ++priv->can.can_stats.error_warning;
- cf->can_id |= CAN_ERR_CRTL;
- if (hecc_read(priv, HECC_CANTEC) > 96)
- cf->data[1] |= CAN_ERR_CRTL_TX_WARNING;
- if (hecc_read(priv, HECC_CANREC) > 96)
- cf->data[1] |= CAN_ERR_CRTL_RX_WARNING;
- }
- hecc_set_bit(priv, HECC_CANES, HECC_CANES_EW);
- netdev_dbg(priv->ndev, "Error Warning interrupt\n");
- hecc_clear_bit(priv, HECC_CANMC, HECC_CANMC_CCR);
- }
-
- if (int_status & HECC_CANGIF_EPIF) { /* error passive int */
- if ((int_status & HECC_CANGIF_BOIF) == 0) {
- priv->can.state = CAN_STATE_ERROR_PASSIVE;
- ++priv->can.can_stats.error_passive;
- cf->can_id |= CAN_ERR_CRTL;
- if (hecc_read(priv, HECC_CANTEC) > 127)
- cf->data[1] |= CAN_ERR_CRTL_TX_PASSIVE;
- if (hecc_read(priv, HECC_CANREC) > 127)
- cf->data[1] |= CAN_ERR_CRTL_RX_PASSIVE;
- }
- hecc_set_bit(priv, HECC_CANES, HECC_CANES_EP);
- netdev_dbg(priv->ndev, "Error passive interrupt\n");
- hecc_clear_bit(priv, HECC_CANMC, HECC_CANMC_CCR);
- }
-
- /* Need to check busoff condition in error status register too to
- * ensure warning interrupts don't hog the system
- */
- if ((int_status & HECC_CANGIF_BOIF) || (err_status & HECC_CANES_BO)) {
- priv->can.state = CAN_STATE_BUS_OFF;
- cf->can_id |= CAN_ERR_BUSOFF;
- hecc_set_bit(priv, HECC_CANES, HECC_CANES_BO);
- hecc_clear_bit(priv, HECC_CANMC, HECC_CANMC_CCR);
- /* Disable all interrupts in bus-off to avoid int hog */
- hecc_write(priv, HECC_CANGIM, 0);
- ++priv->can.can_stats.bus_off;
- can_bus_off(ndev);
- }
+ int err;
if (err_status & HECC_BUS_ERROR) {
+ /* propagate the error condition to the can stack */
+ skb = alloc_can_err_skb(ndev, &cf);
+ if (!skb) {
+ if (net_ratelimit())
+ netdev_err(priv->ndev,
+ "%s: alloc_can_err_skb() failed\n",
+ __func__);
+ return -ENOMEM;
+ }
+
++priv->can.can_stats.bus_error;
cf->can_id |= CAN_ERR_BUSERROR | CAN_ERR_PROT;
- if (err_status & HECC_CANES_FE) {
- hecc_set_bit(priv, HECC_CANES, HECC_CANES_FE);
+ if (err_status & HECC_CANES_FE)
cf->data[2] |= CAN_ERR_PROT_FORM;
- }
- if (err_status & HECC_CANES_BE) {
- hecc_set_bit(priv, HECC_CANES, HECC_CANES_BE);
+ if (err_status & HECC_CANES_BE)
cf->data[2] |= CAN_ERR_PROT_BIT;
- }
- if (err_status & HECC_CANES_SE) {
- hecc_set_bit(priv, HECC_CANES, HECC_CANES_SE);
+ if (err_status & HECC_CANES_SE)
cf->data[2] |= CAN_ERR_PROT_STUFF;
- }
- if (err_status & HECC_CANES_CRCE) {
- hecc_set_bit(priv, HECC_CANES, HECC_CANES_CRCE);
+ if (err_status & HECC_CANES_CRCE)
cf->data[3] = CAN_ERR_PROT_LOC_CRC_SEQ;
- }
- if (err_status & HECC_CANES_ACKE) {
- hecc_set_bit(priv, HECC_CANES, HECC_CANES_ACKE);
+ if (err_status & HECC_CANES_ACKE)
cf->data[3] = CAN_ERR_PROT_LOC_ACK;
- }
+
+ timestamp = hecc_read(priv, HECC_CANLNT);
+ err = can_rx_offload_queue_sorted(&priv->offload, skb,
+ timestamp);
+ if (err)
+ ndev->stats.rx_fifo_errors++;
+ }
+
+ hecc_write(priv, HECC_CANES, HECC_CANES_FLAGS);
+
+ return 0;
+}
+
+static void ti_hecc_change_state(struct net_device *ndev,
+ enum can_state rx_state,
+ enum can_state tx_state)
+{
+ struct ti_hecc_priv *priv = netdev_priv(ndev);
+ struct can_frame *cf;
+ struct sk_buff *skb;
+ u32 timestamp;
+ int err;
+
+ skb = alloc_can_err_skb(priv->ndev, &cf);
+ if (unlikely(!skb)) {
+ priv->can.state = max(tx_state, rx_state);
+ return;
+ }
+
+ can_change_state(priv->ndev, cf, tx_state, rx_state);
+
+ if (max(tx_state, rx_state) != CAN_STATE_BUS_OFF) {
+ cf->data[6] = hecc_read(priv, HECC_CANTEC);
+ cf->data[7] = hecc_read(priv, HECC_CANREC);
}
timestamp = hecc_read(priv, HECC_CANLNT);
- can_rx_offload_queue_sorted(&priv->offload, skb, timestamp);
-
- return 0;
+ err = can_rx_offload_queue_sorted(&priv->offload, skb, timestamp);
+ if (err)
+ ndev->stats.rx_fifo_errors++;
}
static irqreturn_t ti_hecc_interrupt(int irq, void *dev_id)
@@ -651,6 +666,7 @@ static irqreturn_t ti_hecc_interrupt(int irq, void *dev_id)
struct net_device_stats *stats = &ndev->stats;
u32 mbxno, mbx_mask, int_status, err_status, stamp;
unsigned long flags, rx_pending;
+ u32 handled = 0;
int_status = hecc_read(priv,
priv->use_hecc1int ?
@@ -660,17 +676,66 @@ static irqreturn_t ti_hecc_interrupt(int irq, void *dev_id)
return IRQ_NONE;
err_status = hecc_read(priv, HECC_CANES);
- if (err_status & (HECC_BUS_ERROR | HECC_CANES_BO |
- HECC_CANES_EP | HECC_CANES_EW))
+ if (unlikely(err_status & HECC_CANES_FLAGS))
ti_hecc_error(ndev, int_status, err_status);
+ if (unlikely(int_status & HECC_CANGIM_DEF_MASK)) {
+ enum can_state rx_state, tx_state;
+ u32 rec = hecc_read(priv, HECC_CANREC);
+ u32 tec = hecc_read(priv, HECC_CANTEC);
+
+ if (int_status & HECC_CANGIF_WLIF) {
+ handled |= HECC_CANGIF_WLIF;
+ rx_state = rec >= tec ? CAN_STATE_ERROR_WARNING : 0;
+ tx_state = rec <= tec ? CAN_STATE_ERROR_WARNING : 0;
+ netdev_dbg(priv->ndev, "Error Warning interrupt\n");
+ ti_hecc_change_state(ndev, rx_state, tx_state);
+ }
+
+ if (int_status & HECC_CANGIF_EPIF) {
+ handled |= HECC_CANGIF_EPIF;
+ rx_state = rec >= tec ? CAN_STATE_ERROR_PASSIVE : 0;
+ tx_state = rec <= tec ? CAN_STATE_ERROR_PASSIVE : 0;
+ netdev_dbg(priv->ndev, "Error passive interrupt\n");
+ ti_hecc_change_state(ndev, rx_state, tx_state);
+ }
+
+ if (int_status & HECC_CANGIF_BOIF) {
+ handled |= HECC_CANGIF_BOIF;
+ rx_state = CAN_STATE_BUS_OFF;
+ tx_state = CAN_STATE_BUS_OFF;
+ netdev_dbg(priv->ndev, "Bus off interrupt\n");
+
+ /* Disable all interrupts */
+ hecc_write(priv, HECC_CANGIM, 0);
+ can_bus_off(ndev);
+ ti_hecc_change_state(ndev, rx_state, tx_state);
+ }
+ } else if (unlikely(priv->can.state != CAN_STATE_ERROR_ACTIVE)) {
+ enum can_state new_state, tx_state, rx_state;
+ u32 rec = hecc_read(priv, HECC_CANREC);
+ u32 tec = hecc_read(priv, HECC_CANTEC);
+
+ if (rec >= 128 || tec >= 128)
+ new_state = CAN_STATE_ERROR_PASSIVE;
+ else if (rec >= 96 || tec >= 96)
+ new_state = CAN_STATE_ERROR_WARNING;
+ else
+ new_state = CAN_STATE_ERROR_ACTIVE;
+
+ if (new_state < priv->can.state) {
+ rx_state = rec >= tec ? new_state : 0;
+ tx_state = rec <= tec ? new_state : 0;
+ ti_hecc_change_state(ndev, rx_state, tx_state);
+ }
+ }
+
if (int_status & HECC_CANGIF_GMIF) {
while (priv->tx_tail - priv->tx_head > 0) {
mbxno = get_tx_tail_mb(priv);
mbx_mask = BIT(mbxno);
if (!(mbx_mask & hecc_read(priv, HECC_CANTA)))
break;
- hecc_clear_bit(priv, HECC_CANMIM, mbx_mask);
hecc_write(priv, HECC_CANTA, mbx_mask);
spin_lock_irqsave(&priv->mbx_lock, flags);
hecc_clear_bit(priv, HECC_CANME, mbx_mask);
@@ -695,16 +760,15 @@ static irqreturn_t ti_hecc_interrupt(int irq, void *dev_id)
while ((rx_pending = hecc_read(priv, HECC_CANRMP))) {
can_rx_offload_irq_offload_timestamp(&priv->offload,
rx_pending);
- hecc_write(priv, HECC_CANRMP, rx_pending);
}
}
/* clear all interrupt conditions - read back to avoid spurious ints */
if (priv->use_hecc1int) {
- hecc_write(priv, HECC_CANGIF1, HECC_SET_REG);
+ hecc_write(priv, HECC_CANGIF1, handled);
int_status = hecc_read(priv, HECC_CANGIF1);
} else {
- hecc_write(priv, HECC_CANGIF0, HECC_SET_REG);
+ hecc_write(priv, HECC_CANGIF0, handled);
int_status = hecc_read(priv, HECC_CANGIF0);
}
@@ -877,7 +941,7 @@ static int ti_hecc_probe(struct platform_device *pdev)
priv->offload.mailbox_read = ti_hecc_mailbox_read;
priv->offload.mb_first = HECC_RX_FIRST_MBOX;
- priv->offload.mb_last = HECC_MAX_TX_MBOX;
+ priv->offload.mb_last = HECC_RX_LAST_MBOX;
err = can_rx_offload_add_timestamp(ndev, &priv->offload);
if (err) {
dev_err(&pdev->dev, "can_rx_offload_add_timestamp() failed\n");
diff --git a/drivers/net/can/usb/gs_usb.c b/drivers/net/can/usb/gs_usb.c
index bd6eb99..2f74f670 100644
--- a/drivers/net/can/usb/gs_usb.c
+++ b/drivers/net/can/usb/gs_usb.c
@@ -623,6 +623,7 @@ static int gs_can_open(struct net_device *netdev)
rc);
usb_unanchor_urb(urb);
+ usb_free_urb(urb);
break;
}
diff --git a/drivers/net/can/usb/mcba_usb.c b/drivers/net/can/usb/mcba_usb.c
index 19a702a..21faa2e 100644
--- a/drivers/net/can/usb/mcba_usb.c
+++ b/drivers/net/can/usb/mcba_usb.c
@@ -876,9 +876,8 @@ static void mcba_usb_disconnect(struct usb_interface *intf)
netdev_info(priv->netdev, "device disconnected\n");
unregister_candev(priv->netdev);
- free_candev(priv->netdev);
-
mcba_urb_unlink(priv);
+ free_candev(priv->netdev);
}
static struct usb_driver mcba_usb_driver = {
diff --git a/drivers/net/can/usb/peak_usb/pcan_usb.c b/drivers/net/can/usb/peak_usb/pcan_usb.c
index 617da29..d2539c9 100644
--- a/drivers/net/can/usb/peak_usb/pcan_usb.c
+++ b/drivers/net/can/usb/peak_usb/pcan_usb.c
@@ -100,7 +100,7 @@ struct pcan_usb_msg_context {
u8 *end;
u8 rec_cnt;
u8 rec_idx;
- u8 rec_data_idx;
+ u8 rec_ts_idx;
struct net_device *netdev;
struct pcan_usb *pdev;
};
@@ -436,8 +436,8 @@ static int pcan_usb_decode_error(struct pcan_usb_msg_context *mc, u8 n,
}
if ((n & PCAN_USB_ERROR_BUS_LIGHT) == 0) {
/* no error (back to active state) */
- mc->pdev->dev.can.state = CAN_STATE_ERROR_ACTIVE;
- return 0;
+ new_state = CAN_STATE_ERROR_ACTIVE;
+ break;
}
break;
@@ -460,9 +460,9 @@ static int pcan_usb_decode_error(struct pcan_usb_msg_context *mc, u8 n,
}
if ((n & PCAN_USB_ERROR_BUS_HEAVY) == 0) {
- /* no error (back to active state) */
- mc->pdev->dev.can.state = CAN_STATE_ERROR_ACTIVE;
- return 0;
+ /* no error (back to warning state) */
+ new_state = CAN_STATE_ERROR_WARNING;
+ break;
}
break;
@@ -501,6 +501,11 @@ static int pcan_usb_decode_error(struct pcan_usb_msg_context *mc, u8 n,
mc->pdev->dev.can.can_stats.error_warning++;
break;
+ case CAN_STATE_ERROR_ACTIVE:
+ cf->can_id |= CAN_ERR_CRTL;
+ cf->data[1] = CAN_ERR_CRTL_ACTIVE;
+ break;
+
default:
/* CAN_STATE_MAX (trick to handle other errors) */
cf->can_id |= CAN_ERR_CRTL;
@@ -547,10 +552,15 @@ static int pcan_usb_decode_status(struct pcan_usb_msg_context *mc,
mc->ptr += PCAN_USB_CMD_ARGS;
if (status_len & PCAN_USB_STATUSLEN_TIMESTAMP) {
- int err = pcan_usb_decode_ts(mc, !mc->rec_idx);
+ int err = pcan_usb_decode_ts(mc, !mc->rec_ts_idx);
if (err)
return err;
+
+ /* Next packet in the buffer will have a timestamp on a single
+ * byte
+ */
+ mc->rec_ts_idx++;
}
switch (f) {
@@ -632,10 +642,13 @@ static int pcan_usb_decode_data(struct pcan_usb_msg_context *mc, u8 status_len)
cf->can_dlc = get_can_dlc(rec_len);
- /* first data packet timestamp is a word */
- if (pcan_usb_decode_ts(mc, !mc->rec_data_idx))
+ /* Only first packet timestamp is a word */
+ if (pcan_usb_decode_ts(mc, !mc->rec_ts_idx))
goto decode_failed;
+ /* Next packet in the buffer will have a timestamp on a single byte */
+ mc->rec_ts_idx++;
+
/* read data */
memset(cf->data, 0x0, sizeof(cf->data));
if (status_len & PCAN_USB_STATUSLEN_RTR) {
@@ -688,7 +701,6 @@ static int pcan_usb_decode_msg(struct peak_usb_device *dev, u8 *ibuf, u32 lbuf)
/* handle normal can frames here */
} else {
err = pcan_usb_decode_data(&mc, sl);
- mc.rec_data_idx++;
}
}
diff --git a/drivers/net/can/usb/peak_usb/pcan_usb_core.c b/drivers/net/can/usb/peak_usb/pcan_usb_core.c
index 65dce64..0b7766b 100644
--- a/drivers/net/can/usb/peak_usb/pcan_usb_core.c
+++ b/drivers/net/can/usb/peak_usb/pcan_usb_core.c
@@ -750,7 +750,7 @@ static int peak_usb_create_dev(const struct peak_usb_adapter *peak_usb_adapter,
dev = netdev_priv(netdev);
/* allocate a buffer large enough to send commands */
- dev->cmd_buf = kmalloc(PCAN_USB_MAX_CMD_LEN, GFP_KERNEL);
+ dev->cmd_buf = kzalloc(PCAN_USB_MAX_CMD_LEN, GFP_KERNEL);
if (!dev->cmd_buf) {
err = -ENOMEM;
goto lbl_free_candev;
diff --git a/drivers/net/can/usb/usb_8dev.c b/drivers/net/can/usb/usb_8dev.c
index d596a2a..8fa224b 100644
--- a/drivers/net/can/usb/usb_8dev.c
+++ b/drivers/net/can/usb/usb_8dev.c
@@ -996,9 +996,8 @@ static void usb_8dev_disconnect(struct usb_interface *intf)
netdev_info(priv->netdev, "device disconnected\n");
unregister_netdev(priv->netdev);
- free_candev(priv->netdev);
-
unlink_all_urbs(priv);
+ free_candev(priv->netdev);
}
}
diff --git a/drivers/net/can/xilinx_can.c b/drivers/net/can/xilinx_can.c
index 911b343..7c482b2 100644
--- a/drivers/net/can/xilinx_can.c
+++ b/drivers/net/can/xilinx_can.c
@@ -1599,7 +1599,6 @@ static const struct xcan_devtype_data xcan_zynq_data = {
static const struct xcan_devtype_data xcan_axi_data = {
.cantype = XAXI_CAN,
- .flags = XCAN_FLAG_TXFEMP,
.bittiming_const = &xcan_bittiming_const,
.btr_ts2_shift = XCAN_BTR_TS2_SHIFT,
.btr_sjw_shift = XCAN_BTR_SJW_SHIFT,
diff --git a/drivers/net/dsa/bcm_sf2.c b/drivers/net/dsa/bcm_sf2.c
index d44651a..69fc130 100644
--- a/drivers/net/dsa/bcm_sf2.c
+++ b/drivers/net/dsa/bcm_sf2.c
@@ -1215,10 +1215,10 @@ static int bcm_sf2_sw_remove(struct platform_device *pdev)
struct bcm_sf2_priv *priv = platform_get_drvdata(pdev);
priv->wol_ports_mask = 0;
+ /* Disable interrupts */
+ bcm_sf2_intr_disable(priv);
dsa_unregister_switch(priv->dev->ds);
bcm_sf2_cfp_exit(priv->dev->ds);
- /* Disable all ports and interrupts */
- bcm_sf2_sw_suspend(priv->dev->ds);
bcm_sf2_mdio_unregister(priv);
return 0;
diff --git a/drivers/net/dsa/mv88e6xxx/ptp.c b/drivers/net/dsa/mv88e6xxx/ptp.c
index 073cbd0..d838c17 100644
--- a/drivers/net/dsa/mv88e6xxx/ptp.c
+++ b/drivers/net/dsa/mv88e6xxx/ptp.c
@@ -273,6 +273,19 @@ static int mv88e6352_ptp_enable_extts(struct mv88e6xxx_chip *chip,
int pin;
int err;
+ /* Reject requests with unsupported flags */
+ if (rq->extts.flags & ~(PTP_ENABLE_FEATURE |
+ PTP_RISING_EDGE |
+ PTP_FALLING_EDGE |
+ PTP_STRICT_FLAGS))
+ return -EOPNOTSUPP;
+
+ /* Reject requests to enable time stamping on both edges. */
+ if ((rq->extts.flags & PTP_STRICT_FLAGS) &&
+ (rq->extts.flags & PTP_ENABLE_FEATURE) &&
+ (rq->extts.flags & PTP_EXTTS_EDGES) == PTP_EXTTS_EDGES)
+ return -EOPNOTSUPP;
+
pin = ptp_find_pin(chip->ptp_clock, PTP_PF_EXTTS, rq->extts.index);
if (pin < 0)
diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.c b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
index 0f13828..1de5181 100644
--- a/drivers/net/ethernet/broadcom/genet/bcmgenet.c
+++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.c
@@ -1996,8 +1996,6 @@ static void reset_umac(struct bcmgenet_priv *priv)
/* issue soft reset with (rg)mii loopback to ensure a stable rxclk */
bcmgenet_umac_writel(priv, CMD_SW_RESET | CMD_LCL_LOOP_EN, UMAC_CMD);
- udelay(2);
- bcmgenet_umac_writel(priv, 0, UMAC_CMD);
}
static void bcmgenet_intr_disable(struct bcmgenet_priv *priv)
@@ -2614,8 +2612,10 @@ static void bcmgenet_irq_task(struct work_struct *work)
spin_unlock_irq(&priv->lock);
if (status & UMAC_IRQ_PHY_DET_R &&
- priv->dev->phydev->autoneg != AUTONEG_ENABLE)
+ priv->dev->phydev->autoneg != AUTONEG_ENABLE) {
phy_init_hw(priv->dev->phydev);
+ genphy_config_aneg(priv->dev->phydev);
+ }
/* Link UP/DOWN event */
if (status & UMAC_IRQ_LINK_EVENT)
@@ -2879,12 +2879,6 @@ static int bcmgenet_open(struct net_device *dev)
if (priv->internal_phy)
bcmgenet_power_up(priv, GENET_POWER_PASSIVE);
- ret = bcmgenet_mii_connect(dev);
- if (ret) {
- netdev_err(dev, "failed to connect to PHY\n");
- goto err_clk_disable;
- }
-
/* take MAC out of reset */
bcmgenet_umac_reset(priv);
@@ -2894,12 +2888,6 @@ static int bcmgenet_open(struct net_device *dev)
reg = bcmgenet_umac_readl(priv, UMAC_CMD);
priv->crc_fwd_en = !!(reg & CMD_CRC_FWD);
- ret = bcmgenet_mii_config(dev, true);
- if (ret) {
- netdev_err(dev, "unsupported PHY\n");
- goto err_disconnect_phy;
- }
-
bcmgenet_set_hw_addr(priv, dev->dev_addr);
if (priv->internal_phy) {
@@ -2915,7 +2903,7 @@ static int bcmgenet_open(struct net_device *dev)
ret = bcmgenet_init_dma(priv);
if (ret) {
netdev_err(dev, "failed to initialize DMA\n");
- goto err_disconnect_phy;
+ goto err_clk_disable;
}
/* Always enable ring 16 - descriptor ring */
@@ -2938,19 +2926,25 @@ static int bcmgenet_open(struct net_device *dev)
goto err_irq0;
}
+ ret = bcmgenet_mii_probe(dev);
+ if (ret) {
+ netdev_err(dev, "failed to connect to PHY\n");
+ goto err_irq1;
+ }
+
bcmgenet_netif_start(dev);
netif_tx_start_all_queues(dev);
return 0;
+err_irq1:
+ free_irq(priv->irq1, priv);
err_irq0:
free_irq(priv->irq0, priv);
err_fini_dma:
bcmgenet_dma_teardown(priv);
bcmgenet_fini_dma(priv);
-err_disconnect_phy:
- phy_disconnect(dev->phydev);
err_clk_disable:
if (priv->internal_phy)
bcmgenet_power_down(priv, GENET_POWER_PASSIVE);
@@ -3631,8 +3625,6 @@ static int bcmgenet_resume(struct device *d)
if (priv->internal_phy)
bcmgenet_power_up(priv, GENET_POWER_PASSIVE);
- phy_init_hw(dev->phydev);
-
bcmgenet_umac_reset(priv);
init_umac(priv);
@@ -3641,7 +3633,10 @@ static int bcmgenet_resume(struct device *d)
if (priv->wolopts)
clk_disable_unprepare(priv->clk_wol);
+ phy_init_hw(dev->phydev);
+
/* Speed settings must be restored */
+ genphy_config_aneg(dev->phydev);
bcmgenet_mii_config(priv->dev, false);
bcmgenet_set_hw_addr(priv, dev->dev_addr);
diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.h b/drivers/net/ethernet/broadcom/genet/bcmgenet.h
index 7fbf573..dbc69d8 100644
--- a/drivers/net/ethernet/broadcom/genet/bcmgenet.h
+++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.h
@@ -720,8 +720,8 @@ GENET_IO_MACRO(rbuf, GENET_RBUF_OFF);
/* MDIO routines */
int bcmgenet_mii_init(struct net_device *dev);
-int bcmgenet_mii_connect(struct net_device *dev);
int bcmgenet_mii_config(struct net_device *dev, bool init);
+int bcmgenet_mii_probe(struct net_device *dev);
void bcmgenet_mii_exit(struct net_device *dev);
void bcmgenet_phy_power_set(struct net_device *dev, bool enable);
void bcmgenet_mii_setup(struct net_device *dev);
diff --git a/drivers/net/ethernet/broadcom/genet/bcmmii.c b/drivers/net/ethernet/broadcom/genet/bcmmii.c
index 17bb8d6..dbe18cd 100644
--- a/drivers/net/ethernet/broadcom/genet/bcmmii.c
+++ b/drivers/net/ethernet/broadcom/genet/bcmmii.c
@@ -173,46 +173,6 @@ static void bcmgenet_moca_phy_setup(struct bcmgenet_priv *priv)
bcmgenet_fixed_phy_link_update);
}
-int bcmgenet_mii_connect(struct net_device *dev)
-{
- struct bcmgenet_priv *priv = netdev_priv(dev);
- struct device_node *dn = priv->pdev->dev.of_node;
- struct phy_device *phydev;
- u32 phy_flags = 0;
- int ret;
-
- /* Communicate the integrated PHY revision */
- if (priv->internal_phy)
- phy_flags = priv->gphy_rev;
-
- /* Initialize link state variables that bcmgenet_mii_setup() uses */
- priv->old_link = -1;
- priv->old_speed = -1;
- priv->old_duplex = -1;
- priv->old_pause = -1;
-
- if (dn) {
- phydev = of_phy_connect(dev, priv->phy_dn, bcmgenet_mii_setup,
- phy_flags, priv->phy_interface);
- if (!phydev) {
- pr_err("could not attach to PHY\n");
- return -ENODEV;
- }
- } else {
- phydev = dev->phydev;
- phydev->dev_flags = phy_flags;
-
- ret = phy_connect_direct(dev, phydev, bcmgenet_mii_setup,
- priv->phy_interface);
- if (ret) {
- pr_err("could not attach to PHY\n");
- return -ENODEV;
- }
- }
-
- return 0;
-}
-
int bcmgenet_mii_config(struct net_device *dev, bool init)
{
struct bcmgenet_priv *priv = netdev_priv(dev);
@@ -221,8 +181,38 @@ int bcmgenet_mii_config(struct net_device *dev, bool init)
const char *phy_name = NULL;
u32 id_mode_dis = 0;
u32 port_ctrl;
+ int bmcr = -1;
+ int ret;
u32 reg;
+ /* MAC clocking workaround during reset of umac state machines */
+ reg = bcmgenet_umac_readl(priv, UMAC_CMD);
+ if (reg & CMD_SW_RESET) {
+ /* An MII PHY must be isolated to prevent TXC contention */
+ if (priv->phy_interface == PHY_INTERFACE_MODE_MII) {
+ ret = phy_read(phydev, MII_BMCR);
+ if (ret >= 0) {
+ bmcr = ret;
+ ret = phy_write(phydev, MII_BMCR,
+ bmcr | BMCR_ISOLATE);
+ }
+ if (ret) {
+ netdev_err(dev, "failed to isolate PHY\n");
+ return ret;
+ }
+ }
+ /* Switch MAC clocking to RGMII generated clock */
+ bcmgenet_sys_writel(priv, PORT_MODE_EXT_GPHY, SYS_PORT_CTRL);
+ /* Ensure 5 clks with Rx disabled
+ * followed by 5 clks with Reset asserted
+ */
+ udelay(4);
+ reg &= ~(CMD_SW_RESET | CMD_LCL_LOOP_EN);
+ bcmgenet_umac_writel(priv, reg, UMAC_CMD);
+ /* Ensure 5 more clocks before Rx is enabled */
+ udelay(2);
+ }
+
priv->ext_phy = !priv->internal_phy &&
(priv->phy_interface != PHY_INTERFACE_MODE_MOCA);
@@ -254,6 +244,9 @@ int bcmgenet_mii_config(struct net_device *dev, bool init)
phy_set_max_speed(phydev, SPEED_100);
bcmgenet_sys_writel(priv,
PORT_MODE_EXT_EPHY, SYS_PORT_CTRL);
+ /* Restore the MII PHY after isolation */
+ if (bmcr >= 0)
+ phy_write(phydev, MII_BMCR, bmcr);
break;
case PHY_INTERFACE_MODE_REVMII:
@@ -306,21 +299,71 @@ int bcmgenet_mii_config(struct net_device *dev, bool init)
bcmgenet_ext_writel(priv, reg, EXT_RGMII_OOB_CTRL);
}
- if (init) {
- linkmode_copy(phydev->advertising, phydev->supported);
-
- /* The internal PHY has its link interrupts routed to the
- * Ethernet MAC ISRs. On GENETv5 there is a hardware issue
- * that prevents the signaling of link UP interrupts when
- * the link operates at 10Mbps, so fallback to polling for
- * those versions of GENET.
- */
- if (priv->internal_phy && !GENET_IS_V5(priv))
- phydev->irq = PHY_IGNORE_INTERRUPT;
-
+ if (init)
dev_info(kdev, "configuring instance for %s\n", phy_name);
+
+ return 0;
+}
+
+int bcmgenet_mii_probe(struct net_device *dev)
+{
+ struct bcmgenet_priv *priv = netdev_priv(dev);
+ struct device_node *dn = priv->pdev->dev.of_node;
+ struct phy_device *phydev;
+ u32 phy_flags = 0;
+ int ret;
+
+ /* Communicate the integrated PHY revision */
+ if (priv->internal_phy)
+ phy_flags = priv->gphy_rev;
+
+ /* Initialize link state variables that bcmgenet_mii_setup() uses */
+ priv->old_link = -1;
+ priv->old_speed = -1;
+ priv->old_duplex = -1;
+ priv->old_pause = -1;
+
+ if (dn) {
+ phydev = of_phy_connect(dev, priv->phy_dn, bcmgenet_mii_setup,
+ phy_flags, priv->phy_interface);
+ if (!phydev) {
+ pr_err("could not attach to PHY\n");
+ return -ENODEV;
+ }
+ } else {
+ phydev = dev->phydev;
+ phydev->dev_flags = phy_flags;
+
+ ret = phy_connect_direct(dev, phydev, bcmgenet_mii_setup,
+ priv->phy_interface);
+ if (ret) {
+ pr_err("could not attach to PHY\n");
+ return -ENODEV;
+ }
}
+ /* Configure port multiplexer based on what the probed PHY device since
+ * reading the 'max-speed' property determines the maximum supported
+ * PHY speed which is needed for bcmgenet_mii_config() to configure
+ * things appropriately.
+ */
+ ret = bcmgenet_mii_config(dev, true);
+ if (ret) {
+ phy_disconnect(dev->phydev);
+ return ret;
+ }
+
+ linkmode_copy(phydev->advertising, phydev->supported);
+
+ /* The internal PHY has its link interrupts routed to the
+ * Ethernet MAC ISRs. On GENETv5 there is a hardware issue
+ * that prevents the signaling of link UP interrupts when
+ * the link operates at 10Mbps, so fallback to polling for
+ * those versions of GENET.
+ */
+ if (priv->internal_phy && !GENET_IS_V5(priv))
+ dev->phydev->irq = PHY_IGNORE_INTERRUPT;
+
return 0;
}
diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index 77f3511..ca3aa12 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -6280,6 +6280,10 @@ static int tg3_ptp_enable(struct ptp_clock_info *ptp,
switch (rq->type) {
case PTP_CLK_REQ_PEROUT:
+ /* Reject requests with unsupported flags */
+ if (rq->perout.flags)
+ return -EOPNOTSUPP;
+
if (rq->perout.index != 0)
return -EINVAL;
diff --git a/drivers/net/ethernet/cavium/octeon/octeon_mgmt.c b/drivers/net/ethernet/cavium/octeon/octeon_mgmt.c
index 0e5de88..cdd7e5d 100644
--- a/drivers/net/ethernet/cavium/octeon/octeon_mgmt.c
+++ b/drivers/net/ethernet/cavium/octeon/octeon_mgmt.c
@@ -1499,7 +1499,7 @@ static int octeon_mgmt_probe(struct platform_device *pdev)
netdev->ethtool_ops = &octeon_mgmt_ethtool_ops;
netdev->min_mtu = 64 - OCTEON_MGMT_RX_HEADROOM;
- netdev->max_mtu = 16383 - OCTEON_MGMT_RX_HEADROOM;
+ netdev->max_mtu = 16383 - OCTEON_MGMT_RX_HEADROOM - VLAN_HLEN;
mac = of_get_mac_address(pdev->dev.of_node);
diff --git a/drivers/net/ethernet/cirrus/ep93xx_eth.c b/drivers/net/ethernet/cirrus/ep93xx_eth.c
index f1a0c4d..f37c9a0 100644
--- a/drivers/net/ethernet/cirrus/ep93xx_eth.c
+++ b/drivers/net/ethernet/cirrus/ep93xx_eth.c
@@ -763,6 +763,7 @@ static int ep93xx_eth_remove(struct platform_device *pdev)
{
struct net_device *dev;
struct ep93xx_priv *ep;
+ struct resource *mem;
dev = platform_get_drvdata(pdev);
if (dev == NULL)
@@ -778,8 +779,8 @@ static int ep93xx_eth_remove(struct platform_device *pdev)
iounmap(ep->base_addr);
if (ep->res != NULL) {
- release_resource(ep->res);
- kfree(ep->res);
+ mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ release_mem_region(mem->start, resource_size(mem));
}
free_netdev(dev);
diff --git a/drivers/net/ethernet/cortina/gemini.c b/drivers/net/ethernet/cortina/gemini.c
index e736ce2..a8f4c69 100644
--- a/drivers/net/ethernet/cortina/gemini.c
+++ b/drivers/net/ethernet/cortina/gemini.c
@@ -2524,6 +2524,7 @@ static int gemini_ethernet_port_remove(struct platform_device *pdev)
struct gemini_ethernet_port *port = platform_get_drvdata(pdev);
gemini_port_remove(port);
+ free_netdev(port->netdev);
return 0;
}
diff --git a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
index 19379ba..bf5add9 100644
--- a/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
+++ b/drivers/net/ethernet/freescale/dpaa2/dpaa2-eth.c
@@ -2232,8 +2232,16 @@ static int setup_dpio(struct dpaa2_eth_priv *priv)
err_service_reg:
free_channel(priv, channel);
err_alloc_ch:
- if (err == -EPROBE_DEFER)
+ if (err == -EPROBE_DEFER) {
+ for (i = 0; i < priv->num_channels; i++) {
+ channel = priv->channel[i];
+ nctx = &channel->nctx;
+ dpaa2_io_service_deregister(channel->dpio, nctx, dev);
+ free_channel(priv, channel);
+ }
+ priv->num_channels = 0;
return err;
+ }
if (cpumask_empty(&priv->dpio_cpumask)) {
dev_err(dev, "No cpu with an affine DPIO/DPCON\n");
diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index 22c01b2..a9c386b 100644
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -3645,6 +3645,8 @@ fec_drv_remove(struct platform_device *pdev)
regulator_disable(fep->reg_phy);
pm_runtime_put(&pdev->dev);
pm_runtime_disable(&pdev->dev);
+ clk_disable_unprepare(fep->clk_ahb);
+ clk_disable_unprepare(fep->clk_ipg);
if (of_phy_is_fixed_link(np))
of_phy_deregister_fixed_link(np);
of_node_put(fep->phy_node);
diff --git a/drivers/net/ethernet/hisilicon/hns/hnae.c b/drivers/net/ethernet/hisilicon/hns/hnae.c
index 6d0457e..0833927 100644
--- a/drivers/net/ethernet/hisilicon/hns/hnae.c
+++ b/drivers/net/ethernet/hisilicon/hns/hnae.c
@@ -199,7 +199,6 @@ hnae_init_ring(struct hnae_queue *q, struct hnae_ring *ring, int flags)
ring->q = q;
ring->flags = flags;
- spin_lock_init(&ring->lock);
ring->coal_param = q->handle->coal_param;
assert(!ring->desc && !ring->desc_cb && !ring->desc_dma_addr);
diff --git a/drivers/net/ethernet/hisilicon/hns/hnae.h b/drivers/net/ethernet/hisilicon/hns/hnae.h
index e9c67c0..6ab9458 100644
--- a/drivers/net/ethernet/hisilicon/hns/hnae.h
+++ b/drivers/net/ethernet/hisilicon/hns/hnae.h
@@ -274,9 +274,6 @@ struct hnae_ring {
/* statistic */
struct ring_stats stats;
- /* ring lock for poll one */
- spinlock_t lock;
-
dma_addr_t desc_dma_addr;
u32 buf_size; /* size for hnae_desc->addr, preset by AE */
u16 desc_num; /* total number of desc */
diff --git a/drivers/net/ethernet/hisilicon/hns/hns_enet.c b/drivers/net/ethernet/hisilicon/hns/hns_enet.c
index a48396d..14ab2049 100644
--- a/drivers/net/ethernet/hisilicon/hns/hns_enet.c
+++ b/drivers/net/ethernet/hisilicon/hns/hns_enet.c
@@ -943,15 +943,6 @@ static int is_valid_clean_head(struct hnae_ring *ring, int h)
return u > c ? (h > c && h <= u) : (h > c || h <= u);
}
-/* netif_tx_lock will turn down the performance, set only when necessary */
-#ifdef CONFIG_NET_POLL_CONTROLLER
-#define NETIF_TX_LOCK(ring) spin_lock(&(ring)->lock)
-#define NETIF_TX_UNLOCK(ring) spin_unlock(&(ring)->lock)
-#else
-#define NETIF_TX_LOCK(ring)
-#define NETIF_TX_UNLOCK(ring)
-#endif
-
/* reclaim all desc in one budget
* return error or number of desc left
*/
@@ -965,21 +956,16 @@ static int hns_nic_tx_poll_one(struct hns_nic_ring_data *ring_data,
int head;
int bytes, pkts;
- NETIF_TX_LOCK(ring);
-
head = readl_relaxed(ring->io_base + RCB_REG_HEAD);
rmb(); /* make sure head is ready before touch any data */
- if (is_ring_empty(ring) || head == ring->next_to_clean) {
- NETIF_TX_UNLOCK(ring);
+ if (is_ring_empty(ring) || head == ring->next_to_clean)
return 0; /* no data to poll */
- }
if (!is_valid_clean_head(ring, head)) {
netdev_err(ndev, "wrong head (%d, %d-%d)\n", head,
ring->next_to_use, ring->next_to_clean);
ring->stats.io_err_cnt++;
- NETIF_TX_UNLOCK(ring);
return -EIO;
}
@@ -994,8 +980,6 @@ static int hns_nic_tx_poll_one(struct hns_nic_ring_data *ring_data,
ring->stats.tx_pkts += pkts;
ring->stats.tx_bytes += bytes;
- NETIF_TX_UNLOCK(ring);
-
dev_queue = netdev_get_tx_queue(ndev, ring_data->queue_index);
netdev_tx_completed_queue(dev_queue, pkts, bytes);
@@ -1055,16 +1039,12 @@ static void hns_nic_tx_clr_all_bufs(struct hns_nic_ring_data *ring_data)
int head;
int bytes, pkts;
- NETIF_TX_LOCK(ring);
-
head = ring->next_to_use; /* ntu :soft setted ring position*/
bytes = 0;
pkts = 0;
while (head != ring->next_to_clean)
hns_nic_reclaim_one_desc(ring, &bytes, &pkts);
- NETIF_TX_UNLOCK(ring);
-
dev_queue = netdev_get_tx_queue(ndev, ring_data->queue_index);
netdev_tx_reset_queue(dev_queue);
}
diff --git a/drivers/net/ethernet/hisilicon/hns3/hnae3.h b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
index 75ccc1e..a099893 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hnae3.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hnae3.h
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-2.0+
+/* SPDX-License-Identifier: GPL-2.0+ */
// Copyright (c) 2016-2017 Hisilicon Limited.
#ifndef __HNAE3_H
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h
index 2110fa3..5d468ed 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_enet.h
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-2.0+
+/* SPDX-License-Identifier: GPL-2.0+ */
// Copyright (c) 2016-2017 Hisilicon Limited.
#ifndef __HNS3_ENET_H
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c b/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c
index 680c350..52c9d20 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3_ethtool.c
@@ -70,11 +70,6 @@ static const struct hns3_stats hns3_rxq_stats[] = {
#define HNS3_NIC_LB_TEST_TX_CNT_ERR 2
#define HNS3_NIC_LB_TEST_RX_CNT_ERR 3
-struct hns3_link_mode_mapping {
- u32 hns3_link_mode;
- u32 ethtool_link_mode;
-};
-
static int hns3_lp_setup(struct net_device *ndev, enum hnae3_loop loop, bool en)
{
struct hnae3_handle *h = hns3_get_handle(ndev);
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h
index 4821fe0..1426eb5 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_cmd.h
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-2.0+
+/* SPDX-License-Identifier: GPL-2.0+ */
// Copyright (c) 2016-2017 Hisilicon Limited.
#ifndef __HCLGE_CMD_H
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c
index c063301..a1790af 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c
@@ -124,7 +124,7 @@ static int hclge_ets_validate(struct hclge_dev *hdev, struct ieee_ets *ets,
if (ret)
return ret;
- for (i = 0; i < HNAE3_MAX_TC; i++) {
+ for (i = 0; i < hdev->tc_max; i++) {
switch (ets->tc_tsa[i]) {
case IEEE_8021QAZ_TSA_STRICT:
if (hdev->tm_info.tc_info[i].tc_sch_mode !=
@@ -318,6 +318,7 @@ static int hclge_ieee_setpfc(struct hnae3_handle *h, struct ieee_pfc *pfc)
struct net_device *netdev = h->kinfo.netdev;
struct hclge_dev *hdev = vport->back;
u8 i, j, pfc_map, *prio_tc;
+ int ret;
if (!(hdev->dcbx_cap & DCB_CAP_DCBX_VER_IEEE) ||
hdev->flag & HCLGE_FLAG_MQPRIO_ENABLE)
@@ -347,7 +348,21 @@ static int hclge_ieee_setpfc(struct hnae3_handle *h, struct ieee_pfc *pfc)
hclge_tm_pfc_info_update(hdev);
- return hclge_pause_setup_hw(hdev, false);
+ ret = hclge_pause_setup_hw(hdev, false);
+ if (ret)
+ return ret;
+
+ ret = hclge_notify_client(hdev, HNAE3_DOWN_CLIENT);
+ if (ret)
+ return ret;
+
+ ret = hclge_buffer_alloc(hdev);
+ if (ret) {
+ hclge_notify_client(hdev, HNAE3_UP_CLIENT);
+ return ret;
+ }
+
+ return hclge_notify_client(hdev, HNAE3_UP_CLIENT);
}
/* DCBX configuration */
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.h
index 278f21e..b04702e 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.h
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-2.0+
+/* SPDX-License-Identifier: GPL-2.0+ */
// Copyright (c) 2016-2017 Hisilicon Limited.
#ifndef __HCLGE_DCB_H__
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
index e02e01b..c052bb3 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.c
@@ -3587,12 +3587,28 @@ static int hclge_set_rst_done(struct hclge_dev *hdev)
{
struct hclge_pf_rst_done_cmd *req;
struct hclge_desc desc;
+ int ret;
req = (struct hclge_pf_rst_done_cmd *)desc.data;
hclge_cmd_setup_basic_desc(&desc, HCLGE_OPC_PF_RST_DONE, false);
req->pf_rst_done |= HCLGE_PF_RESET_DONE_BIT;
- return hclge_cmd_send(&hdev->hw, &desc, 1);
+ ret = hclge_cmd_send(&hdev->hw, &desc, 1);
+ /* To be compatible with the old firmware, which does not support
+ * command HCLGE_OPC_PF_RST_DONE, just print a warning and
+ * return success
+ */
+ if (ret == -EOPNOTSUPP) {
+ dev_warn(&hdev->pdev->dev,
+ "current firmware does not support command(0x%x)!\n",
+ HCLGE_OPC_PF_RST_DONE);
+ return 0;
+ } else if (ret) {
+ dev_err(&hdev->pdev->dev, "assert PF reset done fail %d!\n",
+ ret);
+ }
+
+ return ret;
}
static int hclge_reset_prepare_up(struct hclge_dev *hdev)
@@ -6247,11 +6263,23 @@ static int hclge_config_switch_param(struct hclge_dev *hdev, int vfid,
func_id = hclge_get_port_number(HOST_PORT, 0, vfid, 0);
req = (struct hclge_mac_vlan_switch_cmd *)desc.data;
+
+ /* read current config parameter */
hclge_cmd_setup_basic_desc(&desc, HCLGE_OPC_MAC_VLAN_SWITCH_PARAM,
- false);
+ true);
req->roce_sel = HCLGE_MAC_VLAN_NIC_SEL;
req->func_id = cpu_to_le32(func_id);
- req->switch_param = switch_param;
+
+ ret = hclge_cmd_send(&hdev->hw, &desc, 1);
+ if (ret) {
+ dev_err(&hdev->pdev->dev,
+ "read mac vlan switch parameter fail, ret = %d\n", ret);
+ return ret;
+ }
+
+ /* modify and write new config parameter */
+ hclge_cmd_reuse_desc(&desc, false);
+ req->switch_param = (req->switch_param & param_mask) | switch_param;
req->param_mask = param_mask;
ret = hclge_cmd_send(&hdev->hw, &desc, 1);
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
index c3d56b8..59b8243 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_main.h
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-2.0+
+/* SPDX-License-Identifier: GPL-2.0+ */
// Copyright (c) 2016-2017 Hisilicon Limited.
#ifndef __HCLGE_MAIN_H
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mdio.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mdio.h
index ef095d9..dd9a121 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mdio.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_mdio.h
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-2.0+
+/* SPDX-License-Identifier: GPL-2.0+ */
// Copyright (c) 2016-2017 Hisilicon Limited.
#ifndef __HCLGE_MDIO_H
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.h b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.h
index 8186109..260f22d 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.h
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.h
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: GPL-2.0+
+/* SPDX-License-Identifier: GPL-2.0+ */
// Copyright (c) 2016-2017 Hisilicon Limited.
#ifndef __HCLGE_TM_H
diff --git a/drivers/net/ethernet/intel/i40e/i40e_adminq_cmd.h b/drivers/net/ethernet/intel/i40e/i40e_adminq_cmd.h
index 530613f..69a2daa 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_adminq_cmd.h
+++ b/drivers/net/ethernet/intel/i40e/i40e_adminq_cmd.h
@@ -20,6 +20,8 @@
/* API version 1.7 implements additional link and PHY-specific APIs */
#define I40E_MINOR_VER_GET_LINK_INFO_XL710 0x0007
+/* API version 1.9 for X722 implements additional link and PHY-specific APIs */
+#define I40E_MINOR_VER_GET_LINK_INFO_X722 0x0009
/* API version 1.6 for X722 devices adds ability to stop FW LLDP agent */
#define I40E_MINOR_VER_FW_LLDP_STOPPABLE_X722 0x0006
diff --git a/drivers/net/ethernet/intel/i40e/i40e_common.c b/drivers/net/ethernet/intel/i40e/i40e_common.c
index d37c6e0..7560f06 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_common.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_common.c
@@ -1876,7 +1876,8 @@ i40e_status i40e_aq_get_link_info(struct i40e_hw *hw,
hw->aq.fw_min_ver < 40)) && hw_link_info->phy_type == 0xE)
hw_link_info->phy_type = I40E_PHY_TYPE_10GBASE_SFPP_CU;
- if (hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE) {
+ if (hw->flags & I40E_HW_FLAG_AQ_PHY_ACCESS_CAPABLE &&
+ hw->mac.type != I40E_MAC_X722) {
__le32 tmp;
memcpy(&tmp, resp->link_type, sizeof(tmp));
diff --git a/drivers/net/ethernet/intel/i40e/i40e_xsk.c b/drivers/net/ethernet/intel/i40e/i40e_xsk.c
index a05dfec..d07e1a8 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_xsk.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_xsk.c
@@ -689,8 +689,6 @@ static bool i40e_xmit_zc(struct i40e_ring *xdp_ring, unsigned int budget)
i40e_xdp_ring_update_tail(xdp_ring);
xsk_umem_consume_tx_done(xdp_ring->xsk_umem);
- if (xsk_umem_uses_need_wakeup(xdp_ring->xsk_umem))
- xsk_clear_tx_need_wakeup(xdp_ring->xsk_umem);
}
return !!budget && work_done;
@@ -769,12 +767,8 @@ bool i40e_clean_xdp_tx_irq(struct i40e_vsi *vsi,
i40e_update_tx_stats(tx_ring, completed_frames, total_bytes);
out_xmit:
- if (xsk_umem_uses_need_wakeup(tx_ring->xsk_umem)) {
- if (tx_ring->next_to_clean == tx_ring->next_to_use)
- xsk_set_tx_need_wakeup(tx_ring->xsk_umem);
- else
- xsk_clear_tx_need_wakeup(tx_ring->xsk_umem);
- }
+ if (xsk_umem_uses_need_wakeup(tx_ring->xsk_umem))
+ xsk_set_tx_need_wakeup(tx_ring->xsk_umem);
xmit_done = i40e_xmit_zc(tx_ring, budget);
diff --git a/drivers/net/ethernet/intel/iavf/iavf_main.c b/drivers/net/ethernet/intel/iavf/iavf_main.c
index 8f310e5..821987d 100644
--- a/drivers/net/ethernet/intel/iavf/iavf_main.c
+++ b/drivers/net/ethernet/intel/iavf/iavf_main.c
@@ -314,7 +314,7 @@ iavf_map_vector_to_rxq(struct iavf_adapter *adapter, int v_idx, int r_idx)
q_vector->rx.target_itr = ITR_TO_REG(rx_ring->itr_setting);
q_vector->ring_mask |= BIT(r_idx);
wr32(hw, IAVF_VFINT_ITRN1(IAVF_RX_ITR, q_vector->reg_idx),
- q_vector->rx.current_itr);
+ q_vector->rx.current_itr >> 1);
q_vector->rx.current_itr = q_vector->rx.target_itr;
}
@@ -340,7 +340,7 @@ iavf_map_vector_to_txq(struct iavf_adapter *adapter, int v_idx, int t_idx)
q_vector->tx.target_itr = ITR_TO_REG(tx_ring->itr_setting);
q_vector->num_ringpairs++;
wr32(hw, IAVF_VFINT_ITRN1(IAVF_TX_ITR, q_vector->reg_idx),
- q_vector->tx.target_itr);
+ q_vector->tx.target_itr >> 1);
q_vector->tx.current_itr = q_vector->tx.target_itr;
}
diff --git a/drivers/net/ethernet/intel/ice/ice_sched.c b/drivers/net/ethernet/intel/ice/ice_sched.c
index fc624b7..2fde965 100644
--- a/drivers/net/ethernet/intel/ice/ice_sched.c
+++ b/drivers/net/ethernet/intel/ice/ice_sched.c
@@ -1036,7 +1036,7 @@ enum ice_status ice_sched_query_res_alloc(struct ice_hw *hw)
struct ice_aqc_query_txsched_res_resp *buf;
enum ice_status status = 0;
__le16 max_sibl;
- u8 i;
+ u16 i;
if (hw->layer_info)
return status;
diff --git a/drivers/net/ethernet/intel/igb/igb_main.c b/drivers/net/ethernet/intel/igb/igb_main.c
index 9148c62..ed7e667 100644
--- a/drivers/net/ethernet/intel/igb/igb_main.c
+++ b/drivers/net/ethernet/intel/igb/igb_main.c
@@ -5675,8 +5675,8 @@ static void igb_tx_ctxtdesc(struct igb_ring *tx_ring,
* should have been handled by the upper layers.
*/
if (tx_ring->launchtime_enable) {
- ts = ns_to_timespec64(first->skb->tstamp);
- first->skb->tstamp = 0;
+ ts = ktime_to_timespec64(first->skb->tstamp);
+ first->skb->tstamp = ktime_set(0, 0);
context_desc->seqnum_seed = cpu_to_le32(ts.tv_nsec / 32);
} else {
context_desc->seqnum_seed = 0;
diff --git a/drivers/net/ethernet/intel/igb/igb_ptp.c b/drivers/net/ethernet/intel/igb/igb_ptp.c
index fd3071f..c39e921 100644
--- a/drivers/net/ethernet/intel/igb/igb_ptp.c
+++ b/drivers/net/ethernet/intel/igb/igb_ptp.c
@@ -521,6 +521,19 @@ static int igb_ptp_feature_enable_i210(struct ptp_clock_info *ptp,
switch (rq->type) {
case PTP_CLK_REQ_EXTTS:
+ /* Reject requests with unsupported flags */
+ if (rq->extts.flags & ~(PTP_ENABLE_FEATURE |
+ PTP_RISING_EDGE |
+ PTP_FALLING_EDGE |
+ PTP_STRICT_FLAGS))
+ return -EOPNOTSUPP;
+
+ /* Reject requests failing to enable both edges. */
+ if ((rq->extts.flags & PTP_STRICT_FLAGS) &&
+ (rq->extts.flags & PTP_ENABLE_FEATURE) &&
+ (rq->extts.flags & PTP_EXTTS_EDGES) != PTP_EXTTS_EDGES)
+ return -EOPNOTSUPP;
+
if (on) {
pin = ptp_find_pin(igb->ptp_clock, PTP_PF_EXTTS,
rq->extts.index);
@@ -551,6 +564,10 @@ static int igb_ptp_feature_enable_i210(struct ptp_clock_info *ptp,
return 0;
case PTP_CLK_REQ_PEROUT:
+ /* Reject requests with unsupported flags */
+ if (rq->perout.flags)
+ return -EOPNOTSUPP;
+
if (on) {
pin = ptp_find_pin(igb->ptp_clock, PTP_PF_PEROUT,
rq->perout.index);
diff --git a/drivers/net/ethernet/intel/igc/igc_main.c b/drivers/net/ethernet/intel/igc/igc_main.c
index 8e424df..2488867 100644
--- a/drivers/net/ethernet/intel/igc/igc_main.c
+++ b/drivers/net/ethernet/intel/igc/igc_main.c
@@ -824,8 +824,8 @@ static void igc_tx_ctxtdesc(struct igc_ring *tx_ring,
* should have been handled by the upper layers.
*/
if (tx_ring->launchtime_enable) {
- ts = ns_to_timespec64(first->skb->tstamp);
- first->skb->tstamp = 0;
+ ts = ktime_to_timespec64(first->skb->tstamp);
+ first->skb->tstamp = ktime_set(0, 0);
context_desc->launch_time = cpu_to_le32(ts.tv_nsec / 32);
} else {
context_desc->launch_time = 0;
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c
index 100ac89..d6feaac 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_xsk.c
@@ -622,8 +622,6 @@ static bool ixgbe_xmit_zc(struct ixgbe_ring *xdp_ring, unsigned int budget)
if (tx_desc) {
ixgbe_xdp_ring_update_tail(xdp_ring);
xsk_umem_consume_tx_done(xdp_ring->xsk_umem);
- if (xsk_umem_uses_need_wakeup(xdp_ring->xsk_umem))
- xsk_clear_tx_need_wakeup(xdp_ring->xsk_umem);
}
return !!budget && work_done;
@@ -691,12 +689,8 @@ bool ixgbe_clean_xdp_tx_irq(struct ixgbe_q_vector *q_vector,
if (xsk_frames)
xsk_umem_complete_tx(umem, xsk_frames);
- if (xsk_umem_uses_need_wakeup(tx_ring->xsk_umem)) {
- if (tx_ring->next_to_clean == tx_ring->next_to_use)
- xsk_set_tx_need_wakeup(tx_ring->xsk_umem);
- else
- xsk_clear_tx_need_wakeup(tx_ring->xsk_umem);
- }
+ if (xsk_umem_uses_need_wakeup(tx_ring->xsk_umem))
+ xsk_set_tx_need_wakeup(tx_ring->xsk_umem);
return ixgbe_xmit_zc(tx_ring, q_vector->tx.work_limit);
}
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/cgx.h b/drivers/net/ethernet/marvell/octeontx2/af/cgx.h
index 206dc5d..5c1f389 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/cgx.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/cgx.h
@@ -1,5 +1,5 @@
-/* SPDX-License-Identifier: GPL-2.0
- * Marvell OcteonTx2 CGX driver
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Marvell OcteonTx2 CGX driver
*
* Copyright (C) 2018 Marvell International Ltd.
*
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/cgx_fw_if.h b/drivers/net/ethernet/marvell/octeontx2/af/cgx_fw_if.h
index fb3ba49..473d975 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/cgx_fw_if.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/cgx_fw_if.h
@@ -1,5 +1,5 @@
-/* SPDX-License-Identifier: GPL-2.0
- * Marvell OcteonTx2 CGX driver
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Marvell OcteonTx2 CGX driver
*
* Copyright (C) 2018 Marvell International Ltd.
*
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/common.h b/drivers/net/ethernet/marvell/octeontx2/af/common.h
index e332e82..413c3f2 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/common.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/common.h
@@ -1,5 +1,5 @@
-/* SPDX-License-Identifier: GPL-2.0
- * Marvell OcteonTx2 RVU Admin Function driver
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Marvell OcteonTx2 RVU Admin Function driver
*
* Copyright (C) 2018 Marvell International Ltd.
*
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
index 76a4575..75439fc 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/mbox.h
@@ -1,5 +1,5 @@
-/* SPDX-License-Identifier: GPL-2.0
- * Marvell OcteonTx2 RVU Admin Function driver
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Marvell OcteonTx2 RVU Admin Function driver
*
* Copyright (C) 2018 Marvell International Ltd.
*
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/npc.h b/drivers/net/ethernet/marvell/octeontx2/af/npc.h
index 8d6d90f..5d4df31 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/npc.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/npc.h
@@ -1,5 +1,5 @@
-/* SPDX-License-Identifier: GPL-2.0
- * Marvell OcteonTx2 RVU Admin Function driver
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Marvell OcteonTx2 RVU Admin Function driver
*
* Copyright (C) 2018 Marvell International Ltd.
*
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/npc_profile.h b/drivers/net/ethernet/marvell/octeontx2/af/npc_profile.h
index b2ce957..da649f6 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/npc_profile.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/npc_profile.h
@@ -1,5 +1,5 @@
-/* SPDX-License-Identifier: GPL-2.0
- * Marvell OcteonTx2 RVU Admin Function driver
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Marvell OcteonTx2 RVU Admin Function driver
*
* Copyright (C) 2018 Marvell International Ltd.
*
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu.h b/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
index c9d60b0..5222e42 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu.h
@@ -1,5 +1,5 @@
-/* SPDX-License-Identifier: GPL-2.0
- * Marvell OcteonTx2 RVU Admin Function driver
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Marvell OcteonTx2 RVU Admin Function driver
*
* Copyright (C) 2018 Marvell International Ltd.
*
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_reg.h b/drivers/net/ethernet/marvell/octeontx2/af/rvu_reg.h
index 09a8d61..1ea92a2 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_reg.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_reg.h
@@ -1,5 +1,5 @@
-/* SPDX-License-Identifier: GPL-2.0
- * Marvell OcteonTx2 RVU Admin Function driver
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Marvell OcteonTx2 RVU Admin Function driver
*
* Copyright (C) 2018 Marvell International Ltd.
*
diff --git a/drivers/net/ethernet/marvell/octeontx2/af/rvu_struct.h b/drivers/net/ethernet/marvell/octeontx2/af/rvu_struct.h
index f920dac..84a3906 100644
--- a/drivers/net/ethernet/marvell/octeontx2/af/rvu_struct.h
+++ b/drivers/net/ethernet/marvell/octeontx2/af/rvu_struct.h
@@ -1,5 +1,5 @@
-/* SPDX-License-Identifier: GPL-2.0
- * Marvell OcteonTx2 RVU Admin Function driver
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Marvell OcteonTx2 RVU Admin Function driver
*
* Copyright (C) 2018 Marvell International Ltd.
*
diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c
index fce9b3a..d44ac66 100644
--- a/drivers/net/ethernet/mellanox/mlx4/main.c
+++ b/drivers/net/ethernet/mellanox/mlx4/main.c
@@ -514,8 +514,7 @@ static int mlx4_dev_cap(struct mlx4_dev *dev, struct mlx4_dev_cap *dev_cap)
dev->caps.max_rq_desc_sz = dev_cap->max_rq_desc_sz;
/*
* Subtract 1 from the limit because we need to allocate a
- * spare CQE so the HCA HW can tell the difference between an
- * empty CQ and a full CQ.
+ * spare CQE to enable resizing the CQ.
*/
dev->caps.max_cqes = dev_cap->max_cq_sz - 1;
dev->caps.reserved_cqs = dev_cap->reserved_cqs;
@@ -4011,6 +4010,7 @@ static int mlx4_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
goto err_params_unregister;
devlink_params_publish(devlink);
+ devlink_reload_enable(devlink);
pci_save_state(pdev);
return 0;
@@ -4122,6 +4122,8 @@ static void mlx4_remove_one(struct pci_dev *pdev)
struct devlink *devlink = priv_to_devlink(priv);
int active_vfs = 0;
+ devlink_reload_disable(devlink);
+
if (mlx4_is_slave(dev))
persist->interface_state |= MLX4_INTERFACE_STATE_NOWAIT;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
index 369499e..9004a07 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.c
@@ -1079,7 +1079,7 @@ static int esw_create_offloads_fdb_tables(struct mlx5_eswitch *esw, int nvports)
MLX5_CAP_GEN(dev, max_flow_counter_15_0);
fdb_max = 1 << MLX5_CAP_ESW_FLOWTABLE_FDB(dev, log_max_ft_size);
- esw_debug(dev, "Create offloads FDB table, min (max esw size(2^%d), max counters(%d), groups(%d), max flow table size(2^%d))\n",
+ esw_debug(dev, "Create offloads FDB table, min (max esw size(2^%d), max counters(%d), groups(%d), max flow table size(%d))\n",
MLX5_CAP_ESW_FLOWTABLE_FDB(dev, log_max_ft_size),
max_flow_counter, ESW_OFFLOADS_NUM_GROUPS,
fdb_max);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads_termtbl.c b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads_termtbl.c
index 7879e17..366bda1b 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads_termtbl.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads_termtbl.c
@@ -183,7 +183,8 @@ static bool mlx5_eswitch_offload_is_uplink_port(const struct mlx5_eswitch *esw,
u32 port_mask, port_value;
if (MLX5_CAP_ESW_FLOWTABLE(esw->dev, flow_source))
- return spec->flow_context.flow_source == MLX5_VPORT_UPLINK;
+ return spec->flow_context.flow_source ==
+ MLX5_FLOW_CONTEXT_FLOW_SOURCE_UPLINK;
port_mask = MLX5_GET(fte_match_param, spec->match_criteria,
misc_parameters.source_port);
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lib/clock.c b/drivers/net/ethernet/mellanox/mlx5/core/lib/clock.c
index 0059b29..43f9760 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/lib/clock.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/lib/clock.c
@@ -236,6 +236,19 @@ static int mlx5_extts_configure(struct ptp_clock_info *ptp,
if (!MLX5_PPS_CAP(mdev))
return -EOPNOTSUPP;
+ /* Reject requests with unsupported flags */
+ if (rq->extts.flags & ~(PTP_ENABLE_FEATURE |
+ PTP_RISING_EDGE |
+ PTP_FALLING_EDGE |
+ PTP_STRICT_FLAGS))
+ return -EOPNOTSUPP;
+
+ /* Reject requests to enable time stamping on both edges. */
+ if ((rq->extts.flags & PTP_STRICT_FLAGS) &&
+ (rq->extts.flags & PTP_ENABLE_FEATURE) &&
+ (rq->extts.flags & PTP_EXTTS_EDGES) == PTP_EXTTS_EDGES)
+ return -EOPNOTSUPP;
+
if (rq->extts.index >= clock->ptp_info.n_pins)
return -EINVAL;
@@ -290,6 +303,10 @@ static int mlx5_perout_configure(struct ptp_clock_info *ptp,
if (!MLX5_PPS_CAP(mdev))
return -EOPNOTSUPP;
+ /* Reject requests with unsupported flags */
+ if (rq->perout.flags)
+ return -EOPNOTSUPP;
+
if (rq->perout.index >= clock->ptp_info.n_pins)
return -EINVAL;
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_action.c b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_action.c
index b74b7d0..004c56c 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_action.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_action.c
@@ -1577,6 +1577,7 @@ int mlx5dr_action_destroy(struct mlx5dr_action *action)
break;
case DR_ACTION_TYP_MODIFY_HDR:
mlx5dr_icm_free_chunk(action->rewrite.chunk);
+ kfree(action->rewrite.data);
refcount_dec(&action->rewrite.dmn->refcount);
break;
default:
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_rule.c b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_rule.c
index e8b6560..5dcb8ba 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_rule.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/steering/dr_rule.c
@@ -1096,6 +1096,8 @@ dr_rule_create_rule_nic(struct mlx5dr_rule *rule,
if (htbl)
mlx5dr_htbl_put(htbl);
+ kfree(hw_ste_arr);
+
return 0;
free_ste:
diff --git a/drivers/net/ethernet/mellanox/mlxsw/core.c b/drivers/net/ethernet/mellanox/mlxsw/core.c
index 4421ab2..0a0884d 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/core.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/core.c
@@ -1189,6 +1189,9 @@ __mlxsw_core_bus_device_register(const struct mlxsw_bus_info *mlxsw_bus_info,
if (mlxsw_driver->params_register)
devlink_params_publish(devlink);
+ if (!reload)
+ devlink_reload_enable(devlink);
+
return 0;
err_thermal_init:
@@ -1249,6 +1252,8 @@ void mlxsw_core_bus_device_unregister(struct mlxsw_core *mlxsw_core,
{
struct devlink *devlink = priv_to_devlink(mlxsw_core);
+ if (!reload)
+ devlink_reload_disable(devlink);
if (devlink_is_reload_failed(devlink)) {
if (!reload)
/* Only the parts that were not de-initialized in the
diff --git a/drivers/net/ethernet/microchip/lan743x_ptp.c b/drivers/net/ethernet/microchip/lan743x_ptp.c
index 57b26c2..e8fe9a9 100644
--- a/drivers/net/ethernet/microchip/lan743x_ptp.c
+++ b/drivers/net/ethernet/microchip/lan743x_ptp.c
@@ -429,6 +429,10 @@ static int lan743x_ptp_perout(struct lan743x_adapter *adapter, int on,
int pulse_width = 0;
int perout_bit = 0;
+ /* Reject requests with unsupported flags */
+ if (perout->flags)
+ return -EOPNOTSUPP;
+
if (!on) {
lan743x_ptp_perout_off(adapter);
return 0;
diff --git a/drivers/net/ethernet/mscc/ocelot.c b/drivers/net/ethernet/mscc/ocelot.c
index 344539c..672ea13 100644
--- a/drivers/net/ethernet/mscc/ocelot.c
+++ b/drivers/net/ethernet/mscc/ocelot.c
@@ -1680,9 +1680,6 @@ static int ocelot_netdevice_port_event(struct net_device *dev,
struct ocelot_port *ocelot_port = netdev_priv(dev);
int err = 0;
- if (!ocelot_netdevice_dev_check(dev))
- return 0;
-
switch (event) {
case NETDEV_CHANGEUPPER:
if (netif_is_bridge_master(info->upper_dev)) {
@@ -1719,12 +1716,16 @@ static int ocelot_netdevice_event(struct notifier_block *unused,
struct net_device *dev = netdev_notifier_info_to_dev(ptr);
int ret = 0;
+ if (!ocelot_netdevice_dev_check(dev))
+ return 0;
+
if (event == NETDEV_PRECHANGEUPPER &&
netif_is_lag_master(info->upper_dev)) {
struct netdev_lag_upper_info *lag_upper_info = info->upper_info;
struct netlink_ext_ack *extack;
- if (lag_upper_info->tx_type != NETDEV_LAG_TX_TYPE_HASH) {
+ if (lag_upper_info &&
+ lag_upper_info->tx_type != NETDEV_LAG_TX_TYPE_HASH) {
extack = netdev_notifier_info_to_extack(&info->info);
NL_SET_ERR_MSG_MOD(extack, "LAG device using unsupported Tx type");
diff --git a/drivers/net/ethernet/mscc/ocelot.h b/drivers/net/ethernet/mscc/ocelot.h
index e40773c..06ac806 100644
--- a/drivers/net/ethernet/mscc/ocelot.h
+++ b/drivers/net/ethernet/mscc/ocelot.h
@@ -523,7 +523,7 @@ void __ocelot_write_ix(struct ocelot *ocelot, u32 val, u32 reg, u32 offset);
#define ocelot_write_rix(ocelot, val, reg, ri) __ocelot_write_ix(ocelot, val, reg, reg##_RSZ * (ri))
#define ocelot_write(ocelot, val, reg) __ocelot_write_ix(ocelot, val, reg, 0)
-void __ocelot_rmw_ix(struct ocelot *ocelot, u32 val, u32 reg, u32 mask,
+void __ocelot_rmw_ix(struct ocelot *ocelot, u32 val, u32 mask, u32 reg,
u32 offset);
#define ocelot_rmw_ix(ocelot, val, m, reg, gi, ri) __ocelot_rmw_ix(ocelot, val, m, reg, reg##_GSZ * (gi) + reg##_RSZ * (ri))
#define ocelot_rmw_gix(ocelot, val, m, reg, gi) __ocelot_rmw_ix(ocelot, val, m, reg, reg##_GSZ * (gi))
diff --git a/drivers/net/ethernet/qlogic/qede/qede_main.c b/drivers/net/ethernet/qlogic/qede/qede_main.c
index 8d1c208..a220cc7 100644
--- a/drivers/net/ethernet/qlogic/qede/qede_main.c
+++ b/drivers/net/ethernet/qlogic/qede/qede_main.c
@@ -1208,8 +1208,16 @@ enum qede_remove_mode {
static void __qede_remove(struct pci_dev *pdev, enum qede_remove_mode mode)
{
struct net_device *ndev = pci_get_drvdata(pdev);
- struct qede_dev *edev = netdev_priv(ndev);
- struct qed_dev *cdev = edev->cdev;
+ struct qede_dev *edev;
+ struct qed_dev *cdev;
+
+ if (!ndev) {
+ dev_info(&pdev->dev, "Device has already been removed\n");
+ return;
+ }
+
+ edev = netdev_priv(ndev);
+ cdev = edev->cdev;
DP_INFO(edev, "Starting qede_remove\n");
diff --git a/drivers/net/ethernet/qualcomm/rmnet/rmnet_config.c b/drivers/net/ethernet/qualcomm/rmnet/rmnet_config.c
index 9c54b71..06de595 100644
--- a/drivers/net/ethernet/qualcomm/rmnet/rmnet_config.c
+++ b/drivers/net/ethernet/qualcomm/rmnet/rmnet_config.c
@@ -57,10 +57,10 @@ static int rmnet_unregister_real_device(struct net_device *real_dev,
if (port->nr_rmnet_devs)
return -EINVAL;
- kfree(port);
-
netdev_rx_handler_unregister(real_dev);
+ kfree(port);
+
/* release reference on real_dev */
dev_put(real_dev);
diff --git a/drivers/net/ethernet/realtek/r8169_main.c b/drivers/net/ethernet/realtek/r8169_main.c
index 5064c29..c4e961e 100644
--- a/drivers/net/ethernet/realtek/r8169_main.c
+++ b/drivers/net/ethernet/realtek/r8169_main.c
@@ -916,6 +916,9 @@ static void r8168g_mdio_write(struct rtl8169_private *tp, int reg, int value)
static int r8168g_mdio_read(struct rtl8169_private *tp, int reg)
{
+ if (reg == 0x1f)
+ return tp->ocp_base == OCP_STD_PHY_BASE ? 0 : tp->ocp_base >> 4;
+
if (tp->ocp_base != OCP_STD_PHY_BASE)
reg -= 0x10;
diff --git a/drivers/net/ethernet/renesas/ravb.h b/drivers/net/ethernet/renesas/ravb.h
index a9c89d5..9f88b5d 100644
--- a/drivers/net/ethernet/renesas/ravb.h
+++ b/drivers/net/ethernet/renesas/ravb.h
@@ -955,6 +955,8 @@ enum RAVB_QUEUE {
#define NUM_RX_QUEUE 2
#define NUM_TX_QUEUE 2
+#define RX_BUF_SZ (2048 - ETH_FCS_LEN + sizeof(__sum16))
+
/* TX descriptors per packet */
#define NUM_TX_DESC_GEN2 2
#define NUM_TX_DESC_GEN3 1
@@ -1018,7 +1020,6 @@ struct ravb_private {
u32 dirty_rx[NUM_RX_QUEUE]; /* Producer ring indices */
u32 cur_tx[NUM_TX_QUEUE];
u32 dirty_tx[NUM_TX_QUEUE];
- u32 rx_buf_sz; /* Based on MTU+slack. */
struct napi_struct napi[NUM_RX_QUEUE];
struct work_struct work;
/* MII transceiver section. */
diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c
index de9aa8c..3f165c1 100644
--- a/drivers/net/ethernet/renesas/ravb_main.c
+++ b/drivers/net/ethernet/renesas/ravb_main.c
@@ -230,7 +230,7 @@ static void ravb_ring_free(struct net_device *ndev, int q)
le32_to_cpu(desc->dptr)))
dma_unmap_single(ndev->dev.parent,
le32_to_cpu(desc->dptr),
- priv->rx_buf_sz,
+ RX_BUF_SZ,
DMA_FROM_DEVICE);
}
ring_size = sizeof(struct ravb_ex_rx_desc) *
@@ -293,9 +293,9 @@ static void ravb_ring_format(struct net_device *ndev, int q)
for (i = 0; i < priv->num_rx_ring[q]; i++) {
/* RX descriptor */
rx_desc = &priv->rx_ring[q][i];
- rx_desc->ds_cc = cpu_to_le16(priv->rx_buf_sz);
+ rx_desc->ds_cc = cpu_to_le16(RX_BUF_SZ);
dma_addr = dma_map_single(ndev->dev.parent, priv->rx_skb[q][i]->data,
- priv->rx_buf_sz,
+ RX_BUF_SZ,
DMA_FROM_DEVICE);
/* We just set the data size to 0 for a failed mapping which
* should prevent DMA from happening...
@@ -342,9 +342,6 @@ static int ravb_ring_init(struct net_device *ndev, int q)
int ring_size;
int i;
- priv->rx_buf_sz = (ndev->mtu <= 1492 ? PKT_BUF_SZ : ndev->mtu) +
- ETH_HLEN + VLAN_HLEN + sizeof(__sum16);
-
/* Allocate RX and TX skb rings */
priv->rx_skb[q] = kcalloc(priv->num_rx_ring[q],
sizeof(*priv->rx_skb[q]), GFP_KERNEL);
@@ -354,7 +351,7 @@ static int ravb_ring_init(struct net_device *ndev, int q)
goto error;
for (i = 0; i < priv->num_rx_ring[q]; i++) {
- skb = netdev_alloc_skb(ndev, priv->rx_buf_sz + RAVB_ALIGN - 1);
+ skb = netdev_alloc_skb(ndev, RX_BUF_SZ + RAVB_ALIGN - 1);
if (!skb)
goto error;
ravb_set_buffer_align(skb);
@@ -584,7 +581,7 @@ static bool ravb_rx(struct net_device *ndev, int *quota, int q)
skb = priv->rx_skb[q][entry];
priv->rx_skb[q][entry] = NULL;
dma_unmap_single(ndev->dev.parent, le32_to_cpu(desc->dptr),
- priv->rx_buf_sz,
+ RX_BUF_SZ,
DMA_FROM_DEVICE);
get_ts &= (q == RAVB_NC) ?
RAVB_RXTSTAMP_TYPE_V2_L2_EVENT :
@@ -617,11 +614,11 @@ static bool ravb_rx(struct net_device *ndev, int *quota, int q)
for (; priv->cur_rx[q] - priv->dirty_rx[q] > 0; priv->dirty_rx[q]++) {
entry = priv->dirty_rx[q] % priv->num_rx_ring[q];
desc = &priv->rx_ring[q][entry];
- desc->ds_cc = cpu_to_le16(priv->rx_buf_sz);
+ desc->ds_cc = cpu_to_le16(RX_BUF_SZ);
if (!priv->rx_skb[q][entry]) {
skb = netdev_alloc_skb(ndev,
- priv->rx_buf_sz +
+ RX_BUF_SZ +
RAVB_ALIGN - 1);
if (!skb)
break; /* Better luck next round. */
@@ -1801,10 +1798,15 @@ static int ravb_do_ioctl(struct net_device *ndev, struct ifreq *req, int cmd)
static int ravb_change_mtu(struct net_device *ndev, int new_mtu)
{
- if (netif_running(ndev))
- return -EBUSY;
+ struct ravb_private *priv = netdev_priv(ndev);
ndev->mtu = new_mtu;
+
+ if (netif_running(ndev)) {
+ synchronize_irq(priv->emac_irq);
+ ravb_emac_init(ndev);
+ }
+
netdev_update_features(ndev);
return 0;
diff --git a/drivers/net/ethernet/renesas/ravb_ptp.c b/drivers/net/ethernet/renesas/ravb_ptp.c
index 9a42580..6984bd5 100644
--- a/drivers/net/ethernet/renesas/ravb_ptp.c
+++ b/drivers/net/ethernet/renesas/ravb_ptp.c
@@ -182,6 +182,13 @@ static int ravb_ptp_extts(struct ptp_clock_info *ptp,
struct net_device *ndev = priv->ndev;
unsigned long flags;
+ /* Reject requests with unsupported flags */
+ if (req->flags & ~(PTP_ENABLE_FEATURE |
+ PTP_RISING_EDGE |
+ PTP_FALLING_EDGE |
+ PTP_STRICT_FLAGS))
+ return -EOPNOTSUPP;
+
if (req->index)
return -EINVAL;
@@ -211,6 +218,10 @@ static int ravb_ptp_perout(struct ptp_clock_info *ptp,
unsigned long flags;
int error = 0;
+ /* Reject requests with unsupported flags */
+ if (req->flags)
+ return -EOPNOTSUPP;
+
if (req->index)
return -EINVAL;
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c
index ddcc191..6e47be6 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-sun8i.c
@@ -1226,7 +1226,7 @@ static int sun8i_dwmac_probe(struct platform_device *pdev)
dwmac_mux:
sun8i_dwmac_unset_syscon(gmac);
dwmac_exit:
- sun8i_dwmac_exit(pdev, plat_dat->bsp_priv);
+ stmmac_pltfr_remove(pdev);
return ret;
}
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c b/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c
index 5a7b0ac..66e60c7 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_core.c
@@ -432,7 +432,7 @@ static void dwmac4_set_filter(struct mac_device_info *hw,
* bits used depends on the hardware configuration
* selected at core configuration time.
*/
- int bit_nr = bitrev32(~crc32_le(~0, ha->addr,
+ u32 bit_nr = bitrev32(~crc32_le(~0, ha->addr,
ETH_ALEN)) >> (32 - mcbitslog2);
/* The most significant bit determines the register to
* use (H/L) while the other 5 bits determine the bit
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac5.h b/drivers/net/ethernet/stmicro/stmmac/dwmac5.h
index 775db77..23fecf6 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac5.h
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac5.h
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/* SPDX-License-Identifier: (GPL-2.0 OR MIT) */
// Copyright (c) 2017 Synopsys, Inc. and/or its affiliates.
// stmmac Support for 5.xx Ethernet QoS cores
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2.h b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2.h
index 9903738..9d08a93 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2.h
+++ b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2.h
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/* SPDX-License-Identifier: (GPL-2.0 OR MIT) */
/*
* Copyright (c) 2018 Synopsys, Inc. and/or its affiliates.
* stmmac XGMAC definitions.
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_core.c b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_core.c
index 5031398..070bd7d 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_core.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_core.c
@@ -224,6 +224,7 @@ static void dwxgmac2_config_cbs(struct mac_device_info *hw,
writel(low_credit, ioaddr + XGMAC_MTL_TCx_LOCREDIT(queue));
value = readl(ioaddr + XGMAC_MTL_TCx_ETS_CONTROL(queue));
+ value &= ~XGMAC_TSA;
value |= XGMAC_CC | XGMAC_CBS;
writel(value, ioaddr + XGMAC_MTL_TCx_ETS_CONTROL(queue));
}
@@ -463,7 +464,7 @@ static void dwxgmac2_set_filter(struct mac_device_info *hw,
value |= XGMAC_FILTER_HMC;
netdev_for_each_mc_addr(ha, dev) {
- int nr = (bitrev32(~crc32_le(~0, ha->addr, 6)) >>
+ u32 nr = (bitrev32(~crc32_le(~0, ha->addr, 6)) >>
(32 - mcbitslog2));
mc_filter[nr >> 5] |= (1 << (nr & 0x1F));
}
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_descs.c b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_descs.c
index ae48154..bd5838c 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_descs.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_descs.c
@@ -288,7 +288,8 @@ static int dwxgmac2_get_rx_hash(struct dma_desc *p, u32 *hash,
static int dwxgmac2_get_rx_header_len(struct dma_desc *p, unsigned int *len)
{
- *len = le32_to_cpu(p->des2) & XGMAC_RDES2_HL;
+ if (le32_to_cpu(p->des3) & XGMAC_RDES3_L34T)
+ *len = le32_to_cpu(p->des2) & XGMAC_RDES2_HL;
return 0;
}
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c
index 965cbe3..f70ca53 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c
@@ -369,7 +369,7 @@ static void dwxgmac2_get_hw_feature(void __iomem *ioaddr,
dma_cap->eee = (hw_cap & XGMAC_HWFEAT_EEESEL) >> 13;
dma_cap->atime_stamp = (hw_cap & XGMAC_HWFEAT_TSSEL) >> 12;
dma_cap->av = (hw_cap & XGMAC_HWFEAT_AVSEL) >> 11;
- dma_cap->av &= !(hw_cap & XGMAC_HWFEAT_RAVSEL) >> 10;
+ dma_cap->av &= !((hw_cap & XGMAC_HWFEAT_RAVSEL) >> 10);
dma_cap->arpoffsel = (hw_cap & XGMAC_HWFEAT_ARPOFFSEL) >> 9;
dma_cap->rmon = (hw_cap & XGMAC_HWFEAT_MMCSEL) >> 8;
dma_cap->pmt_magic_frame = (hw_cap & XGMAC_HWFEAT_MGKSEL) >> 7;
@@ -470,6 +470,7 @@ static void dwxgmac2_enable_tso(void __iomem *ioaddr, bool en, u32 chan)
static void dwxgmac2_qmode(void __iomem *ioaddr, u32 channel, u8 qmode)
{
u32 value = readl(ioaddr + XGMAC_MTL_TXQ_OPMODE(channel));
+ u32 flow = readl(ioaddr + XGMAC_RX_FLOW_CTRL);
value &= ~XGMAC_TXQEN;
if (qmode != MTL_QUEUE_AVB) {
@@ -477,6 +478,7 @@ static void dwxgmac2_qmode(void __iomem *ioaddr, u32 channel, u8 qmode)
writel(0, ioaddr + XGMAC_MTL_TCx_ETS_CONTROL(channel));
} else {
value |= 0x1 << XGMAC_TXQEN_SHIFT;
+ writel(flow & (~XGMAC_RFE), ioaddr + XGMAC_RX_FLOW_CTRL);
}
writel(value, ioaddr + XGMAC_MTL_TXQ_OPMODE(channel));
diff --git a/drivers/net/ethernet/stmicro/stmmac/hwif.h b/drivers/net/ethernet/stmicro/stmmac/hwif.h
index ddb851d..9010d88 100644
--- a/drivers/net/ethernet/stmicro/stmmac/hwif.h
+++ b/drivers/net/ethernet/stmicro/stmmac/hwif.h
@@ -1,4 +1,4 @@
-// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/* SPDX-License-Identifier: (GPL-2.0 OR MIT) */
// Copyright (c) 2018 Synopsys, Inc. and/or its affiliates.
// stmmac HW Interface Callbacks
diff --git a/drivers/net/ethernet/stmicro/stmmac/mmc_core.c b/drivers/net/ethernet/stmicro/stmmac/mmc_core.c
index a223584..252cf48 100644
--- a/drivers/net/ethernet/stmicro/stmmac/mmc_core.c
+++ b/drivers/net/ethernet/stmicro/stmmac/mmc_core.c
@@ -176,6 +176,7 @@
#define MMC_XGMAC_RX_PKT_SMD_ERR 0x22c
#define MMC_XGMAC_RX_PKT_ASSEMBLY_OK 0x230
#define MMC_XGMAC_RX_FPE_FRAG 0x234
+#define MMC_XGMAC_RX_IPC_INTR_MASK 0x25c
static void dwmac_mmc_ctrl(void __iomem *mmcaddr, unsigned int mode)
{
@@ -333,8 +334,9 @@ static void dwxgmac_mmc_ctrl(void __iomem *mmcaddr, unsigned int mode)
static void dwxgmac_mmc_intr_all_mask(void __iomem *mmcaddr)
{
- writel(MMC_DEFAULT_MASK, mmcaddr + MMC_RX_INTR_MASK);
- writel(MMC_DEFAULT_MASK, mmcaddr + MMC_TX_INTR_MASK);
+ writel(0x0, mmcaddr + MMC_RX_INTR_MASK);
+ writel(0x0, mmcaddr + MMC_TX_INTR_MASK);
+ writel(MMC_DEFAULT_MASK, mmcaddr + MMC_XGMAC_RX_IPC_INTR_MASK);
}
static void dwxgmac_read_mmc_reg(void __iomem *addr, u32 reg, u32 *dest)
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 4e9c848..f826365 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -2996,6 +2996,7 @@ static netdev_tx_t stmmac_tso_xmit(struct sk_buff *skb, struct net_device *dev)
stmmac_set_desc_addr(priv, first, des);
tmp_pay_len = pay_len;
des += proto_hdr_len;
+ pay_len = 0;
}
stmmac_tso_allocator(priv, des, tmp_pay_len, (nfrags == 0), queue);
@@ -3023,6 +3024,19 @@ static netdev_tx_t stmmac_tso_xmit(struct sk_buff *skb, struct net_device *dev)
/* Only the last descriptor gets to point to the skb. */
tx_q->tx_skbuff[tx_q->cur_tx] = skb;
+ /* Manage tx mitigation */
+ tx_q->tx_count_frames += nfrags + 1;
+ if (likely(priv->tx_coal_frames > tx_q->tx_count_frames) &&
+ !((skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP) &&
+ priv->hwts_tx_en)) {
+ stmmac_tx_timer_arm(priv, queue);
+ } else {
+ desc = &tx_q->dma_tx[tx_q->cur_tx];
+ tx_q->tx_count_frames = 0;
+ stmmac_set_tx_ic(priv, desc);
+ priv->xstats.tx_set_ic_bit++;
+ }
+
/* We've used all descriptors we need for this skb, however,
* advance cur_tx so that it references a fresh descriptor.
* ndo_start_xmit will fill this descriptor the next time it's
@@ -3040,19 +3054,6 @@ static netdev_tx_t stmmac_tso_xmit(struct sk_buff *skb, struct net_device *dev)
priv->xstats.tx_tso_frames++;
priv->xstats.tx_tso_nfrags += nfrags;
- /* Manage tx mitigation */
- tx_q->tx_count_frames += nfrags + 1;
- if (likely(priv->tx_coal_frames > tx_q->tx_count_frames) &&
- !(priv->synopsys_id >= DWMAC_CORE_4_00 &&
- (skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP) &&
- priv->hwts_tx_en)) {
- stmmac_tx_timer_arm(priv, queue);
- } else {
- tx_q->tx_count_frames = 0;
- stmmac_set_tx_ic(priv, desc);
- priv->xstats.tx_set_ic_bit++;
- }
-
if (priv->sarc_type)
stmmac_set_desc_sarc(priv, first, priv->sarc_type);
@@ -3224,6 +3225,27 @@ static netdev_tx_t stmmac_xmit(struct sk_buff *skb, struct net_device *dev)
/* Only the last descriptor gets to point to the skb. */
tx_q->tx_skbuff[entry] = skb;
+ /* According to the coalesce parameter the IC bit for the latest
+ * segment is reset and the timer re-started to clean the tx status.
+ * This approach takes care about the fragments: desc is the first
+ * element in case of no SG.
+ */
+ tx_q->tx_count_frames += nfrags + 1;
+ if (likely(priv->tx_coal_frames > tx_q->tx_count_frames) &&
+ !((skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP) &&
+ priv->hwts_tx_en)) {
+ stmmac_tx_timer_arm(priv, queue);
+ } else {
+ if (likely(priv->extend_desc))
+ desc = &tx_q->dma_etx[entry].basic;
+ else
+ desc = &tx_q->dma_tx[entry];
+
+ tx_q->tx_count_frames = 0;
+ stmmac_set_tx_ic(priv, desc);
+ priv->xstats.tx_set_ic_bit++;
+ }
+
/* We've used all descriptors we need for this skb, however,
* advance cur_tx so that it references a fresh descriptor.
* ndo_start_xmit will fill this descriptor the next time it's
@@ -3259,23 +3281,6 @@ static netdev_tx_t stmmac_xmit(struct sk_buff *skb, struct net_device *dev)
dev->stats.tx_bytes += skb->len;
- /* According to the coalesce parameter the IC bit for the latest
- * segment is reset and the timer re-started to clean the tx status.
- * This approach takes care about the fragments: desc is the first
- * element in case of no SG.
- */
- tx_q->tx_count_frames += nfrags + 1;
- if (likely(priv->tx_coal_frames > tx_q->tx_count_frames) &&
- !(priv->synopsys_id >= DWMAC_CORE_4_00 &&
- (skb_shinfo(skb)->tx_flags & SKBTX_HW_TSTAMP) &&
- priv->hwts_tx_en)) {
- stmmac_tx_timer_arm(priv, queue);
- } else {
- tx_q->tx_count_frames = 0;
- stmmac_set_tx_ic(priv, desc);
- priv->xstats.tx_set_ic_bit++;
- }
-
if (priv->sarc_type)
stmmac_set_desc_sarc(priv, first, priv->sarc_type);
@@ -3506,8 +3511,6 @@ static int stmmac_rx(struct stmmac_priv *priv, int limit, u32 queue)
if (unlikely(status & dma_own))
break;
- count++;
-
rx_q->cur_rx = STMMAC_GET_ENTRY(rx_q->cur_rx, DMA_RX_SIZE);
next_entry = rx_q->cur_rx;
@@ -3534,6 +3537,7 @@ static int stmmac_rx(struct stmmac_priv *priv, int limit, u32 queue)
goto read_again;
if (unlikely(error)) {
dev_kfree_skb(skb);
+ count++;
continue;
}
@@ -3573,6 +3577,7 @@ static int stmmac_rx(struct stmmac_priv *priv, int limit, u32 queue)
skb = napi_alloc_skb(&ch->rx_napi, len);
if (!skb) {
priv->dev->stats.rx_dropped++;
+ count++;
continue;
}
@@ -3638,6 +3643,7 @@ static int stmmac_rx(struct stmmac_priv *priv, int limit, u32 queue)
priv->dev->stats.rx_packets++;
priv->dev->stats.rx_bytes += len;
+ count++;
}
if (status & rx_not_ls) {
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.c
index df638b1..0989e2b 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_ptp.c
@@ -140,6 +140,10 @@ static int stmmac_enable(struct ptp_clock_info *ptp,
switch (rq->type) {
case PTP_CLK_REQ_PEROUT:
+ /* Reject requests with unsupported flags */
+ if (rq->perout.flags)
+ return -EOPNOTSUPP;
+
cfg = &priv->pps[rq->perout.index];
cfg->start.tv_sec = rq->perout.start.sec;
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_selftests.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_selftests.c
index e4ac3c4..ac3f6581 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_selftests.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_selftests.c
@@ -6,7 +6,9 @@
* Author: Jose Abreu <joabreu@synopsys.com>
*/
+#include <linux/bitrev.h>
#include <linux/completion.h>
+#include <linux/crc32.h>
#include <linux/ethtool.h>
#include <linux/ip.h>
#include <linux/phy.h>
@@ -485,12 +487,48 @@ static int stmmac_filter_check(struct stmmac_priv *priv)
return -EOPNOTSUPP;
}
+static bool stmmac_hash_check(struct stmmac_priv *priv, unsigned char *addr)
+{
+ int mc_offset = 32 - priv->hw->mcast_bits_log2;
+ struct netdev_hw_addr *ha;
+ u32 hash, hash_nr;
+
+ /* First compute the hash for desired addr */
+ hash = bitrev32(~crc32_le(~0, addr, 6)) >> mc_offset;
+ hash_nr = hash >> 5;
+ hash = 1 << (hash & 0x1f);
+
+ /* Now, check if it collides with any existing one */
+ netdev_for_each_mc_addr(ha, priv->dev) {
+ u32 nr = bitrev32(~crc32_le(~0, ha->addr, ETH_ALEN)) >> mc_offset;
+ if (((nr >> 5) == hash_nr) && ((1 << (nr & 0x1f)) == hash))
+ return false;
+ }
+
+ /* No collisions, address is good to go */
+ return true;
+}
+
+static bool stmmac_perfect_check(struct stmmac_priv *priv, unsigned char *addr)
+{
+ struct netdev_hw_addr *ha;
+
+ /* Check if it collides with any existing one */
+ netdev_for_each_uc_addr(ha, priv->dev) {
+ if (!memcmp(ha->addr, addr, ETH_ALEN))
+ return false;
+ }
+
+ /* No collisions, address is good to go */
+ return true;
+}
+
static int stmmac_test_hfilt(struct stmmac_priv *priv)
{
- unsigned char gd_addr[ETH_ALEN] = {0x01, 0xee, 0xdd, 0xcc, 0xbb, 0xaa};
- unsigned char bd_addr[ETH_ALEN] = {0x01, 0x01, 0x02, 0x03, 0x04, 0x05};
+ unsigned char gd_addr[ETH_ALEN] = {0xf1, 0xee, 0xdd, 0xcc, 0xbb, 0xaa};
+ unsigned char bd_addr[ETH_ALEN] = {0xf1, 0xff, 0xff, 0xff, 0xff, 0xff};
struct stmmac_packet_attrs attr = { };
- int ret;
+ int ret, tries = 256;
ret = stmmac_filter_check(priv);
if (ret)
@@ -499,6 +537,16 @@ static int stmmac_test_hfilt(struct stmmac_priv *priv)
if (netdev_mc_count(priv->dev) >= priv->hw->multicast_filter_bins)
return -EOPNOTSUPP;
+ while (--tries) {
+ /* We only need to check the bd_addr for collisions */
+ bd_addr[ETH_ALEN - 1] = tries;
+ if (stmmac_hash_check(priv, bd_addr))
+ break;
+ }
+
+ if (!tries)
+ return -EOPNOTSUPP;
+
ret = dev_mc_add(priv->dev, gd_addr);
if (ret)
return ret;
@@ -523,13 +571,25 @@ static int stmmac_test_hfilt(struct stmmac_priv *priv)
static int stmmac_test_pfilt(struct stmmac_priv *priv)
{
- unsigned char gd_addr[ETH_ALEN] = {0x00, 0x01, 0x44, 0x55, 0x66, 0x77};
- unsigned char bd_addr[ETH_ALEN] = {0x08, 0x00, 0x22, 0x33, 0x44, 0x55};
+ unsigned char gd_addr[ETH_ALEN] = {0xf0, 0x01, 0x44, 0x55, 0x66, 0x77};
+ unsigned char bd_addr[ETH_ALEN] = {0xf0, 0xff, 0xff, 0xff, 0xff, 0xff};
struct stmmac_packet_attrs attr = { };
- int ret;
+ int ret, tries = 256;
if (stmmac_filter_check(priv))
return -EOPNOTSUPP;
+ if (netdev_uc_count(priv->dev) >= priv->hw->unicast_filter_entries)
+ return -EOPNOTSUPP;
+
+ while (--tries) {
+ /* We only need to check the bd_addr for collisions */
+ bd_addr[ETH_ALEN - 1] = tries;
+ if (stmmac_perfect_check(priv, bd_addr))
+ break;
+ }
+
+ if (!tries)
+ return -EOPNOTSUPP;
ret = dev_uc_add(priv->dev, gd_addr);
if (ret)
@@ -553,39 +613,31 @@ static int stmmac_test_pfilt(struct stmmac_priv *priv)
return ret;
}
-static int stmmac_dummy_sync(struct net_device *netdev, const u8 *addr)
-{
- return 0;
-}
-
-static void stmmac_test_set_rx_mode(struct net_device *netdev)
-{
- /* As we are in test mode of ethtool we already own the rtnl lock
- * so no address will change from user. We can just call the
- * ndo_set_rx_mode() callback directly */
- if (netdev->netdev_ops->ndo_set_rx_mode)
- netdev->netdev_ops->ndo_set_rx_mode(netdev);
-}
-
static int stmmac_test_mcfilt(struct stmmac_priv *priv)
{
- unsigned char uc_addr[ETH_ALEN] = {0x00, 0x01, 0x44, 0x55, 0x66, 0x77};
- unsigned char mc_addr[ETH_ALEN] = {0x01, 0x01, 0x44, 0x55, 0x66, 0x77};
+ unsigned char uc_addr[ETH_ALEN] = {0xf0, 0xff, 0xff, 0xff, 0xff, 0xff};
+ unsigned char mc_addr[ETH_ALEN] = {0xf1, 0xff, 0xff, 0xff, 0xff, 0xff};
struct stmmac_packet_attrs attr = { };
- int ret;
+ int ret, tries = 256;
if (stmmac_filter_check(priv))
return -EOPNOTSUPP;
- if (!priv->hw->multicast_filter_bins)
+ if (netdev_uc_count(priv->dev) >= priv->hw->unicast_filter_entries)
return -EOPNOTSUPP;
- /* Remove all MC addresses */
- __dev_mc_unsync(priv->dev, NULL);
- stmmac_test_set_rx_mode(priv->dev);
+ while (--tries) {
+ /* We only need to check the mc_addr for collisions */
+ mc_addr[ETH_ALEN - 1] = tries;
+ if (stmmac_hash_check(priv, mc_addr))
+ break;
+ }
+
+ if (!tries)
+ return -EOPNOTSUPP;
ret = dev_uc_add(priv->dev, uc_addr);
if (ret)
- goto cleanup;
+ return ret;
attr.dst = uc_addr;
@@ -602,30 +654,34 @@ static int stmmac_test_mcfilt(struct stmmac_priv *priv)
cleanup:
dev_uc_del(priv->dev, uc_addr);
- __dev_mc_sync(priv->dev, stmmac_dummy_sync, NULL);
- stmmac_test_set_rx_mode(priv->dev);
return ret;
}
static int stmmac_test_ucfilt(struct stmmac_priv *priv)
{
- unsigned char uc_addr[ETH_ALEN] = {0x00, 0x01, 0x44, 0x55, 0x66, 0x77};
- unsigned char mc_addr[ETH_ALEN] = {0x01, 0x01, 0x44, 0x55, 0x66, 0x77};
+ unsigned char uc_addr[ETH_ALEN] = {0xf0, 0xff, 0xff, 0xff, 0xff, 0xff};
+ unsigned char mc_addr[ETH_ALEN] = {0xf1, 0xff, 0xff, 0xff, 0xff, 0xff};
struct stmmac_packet_attrs attr = { };
- int ret;
+ int ret, tries = 256;
if (stmmac_filter_check(priv))
return -EOPNOTSUPP;
- if (!priv->hw->multicast_filter_bins)
+ if (netdev_mc_count(priv->dev) >= priv->hw->multicast_filter_bins)
return -EOPNOTSUPP;
- /* Remove all UC addresses */
- __dev_uc_unsync(priv->dev, NULL);
- stmmac_test_set_rx_mode(priv->dev);
+ while (--tries) {
+ /* We only need to check the uc_addr for collisions */
+ uc_addr[ETH_ALEN - 1] = tries;
+ if (stmmac_perfect_check(priv, uc_addr))
+ break;
+ }
+
+ if (!tries)
+ return -EOPNOTSUPP;
ret = dev_mc_add(priv->dev, mc_addr);
if (ret)
- goto cleanup;
+ return ret;
attr.dst = mc_addr;
@@ -642,8 +698,6 @@ static int stmmac_test_ucfilt(struct stmmac_priv *priv)
cleanup:
dev_mc_del(priv->dev, mc_addr);
- __dev_uc_sync(priv->dev, stmmac_dummy_sync, NULL);
- stmmac_test_set_rx_mode(priv->dev);
return ret;
}
diff --git a/drivers/net/netdevsim/dev.c b/drivers/net/netdevsim/dev.c
index 54ca668..44c2d85 100644
--- a/drivers/net/netdevsim/dev.c
+++ b/drivers/net/netdevsim/dev.c
@@ -708,6 +708,7 @@ nsim_dev_create(struct nsim_bus_dev *nsim_bus_dev, unsigned int port_count)
goto err_debugfs_exit;
devlink_params_publish(devlink);
+ devlink_reload_enable(devlink);
return nsim_dev;
err_debugfs_exit:
@@ -732,6 +733,7 @@ static void nsim_dev_destroy(struct nsim_dev *nsim_dev)
{
struct devlink *devlink = priv_to_devlink(nsim_dev);
+ devlink_reload_disable(devlink);
nsim_bpf_dev_exit(nsim_dev);
nsim_dev_debugfs_exit(nsim_dev);
nsim_dev_traps_exit(devlink);
diff --git a/drivers/net/phy/dp83640.c b/drivers/net/phy/dp83640.c
index 6580094..8f241b5 100644
--- a/drivers/net/phy/dp83640.c
+++ b/drivers/net/phy/dp83640.c
@@ -469,6 +469,19 @@ static int ptp_dp83640_enable(struct ptp_clock_info *ptp,
switch (rq->type) {
case PTP_CLK_REQ_EXTTS:
+ /* Reject requests with unsupported flags */
+ if (rq->extts.flags & ~(PTP_ENABLE_FEATURE |
+ PTP_RISING_EDGE |
+ PTP_FALLING_EDGE |
+ PTP_STRICT_FLAGS))
+ return -EOPNOTSUPP;
+
+ /* Reject requests to enable time stamping on both edges. */
+ if ((rq->extts.flags & PTP_STRICT_FLAGS) &&
+ (rq->extts.flags & PTP_ENABLE_FEATURE) &&
+ (rq->extts.flags & PTP_EXTTS_EDGES) == PTP_EXTTS_EDGES)
+ return -EOPNOTSUPP;
+
index = rq->extts.index;
if (index >= N_EXT_TS)
return -EINVAL;
@@ -491,6 +504,9 @@ static int ptp_dp83640_enable(struct ptp_clock_info *ptp,
return 0;
case PTP_CLK_REQ_PEROUT:
+ /* Reject requests with unsupported flags */
+ if (rq->perout.flags)
+ return -EOPNOTSUPP;
if (rq->perout.index >= N_PER_OUT)
return -EINVAL;
return periodic_output(clock, rq, on, rq->perout.index);
diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c
index 2e29ab8..3587656 100644
--- a/drivers/net/phy/mdio_bus.c
+++ b/drivers/net/phy/mdio_bus.c
@@ -64,11 +64,12 @@ static int mdiobus_register_reset(struct mdio_device *mdiodev)
if (mdiodev->dev.of_node)
reset = devm_reset_control_get_exclusive(&mdiodev->dev,
"phy");
- if (PTR_ERR(reset) == -ENOENT ||
- PTR_ERR(reset) == -ENOTSUPP)
- reset = NULL;
- else if (IS_ERR(reset))
- return PTR_ERR(reset);
+ if (IS_ERR(reset)) {
+ if (PTR_ERR(reset) == -ENOENT || PTR_ERR(reset) == -ENOSYS)
+ reset = NULL;
+ else
+ return PTR_ERR(reset);
+ }
mdiodev->reset_ctrl = reset;
diff --git a/drivers/net/slip/slip.c b/drivers/net/slip/slip.c
index cac64b9..4d479e3 100644
--- a/drivers/net/slip/slip.c
+++ b/drivers/net/slip/slip.c
@@ -855,6 +855,7 @@ static int slip_open(struct tty_struct *tty)
sl->tty = NULL;
tty->disc_data = NULL;
clear_bit(SLF_INUSE, &sl->flags);
+ free_netdev(sl->dev);
err_exit:
rtnl_unlock();
diff --git a/drivers/net/usb/ax88172a.c b/drivers/net/usb/ax88172a.c
index 011bd4c..af3994e 100644
--- a/drivers/net/usb/ax88172a.c
+++ b/drivers/net/usb/ax88172a.c
@@ -196,7 +196,7 @@ static int ax88172a_bind(struct usbnet *dev, struct usb_interface *intf)
/* Get the MAC address */
ret = asix_read_cmd(dev, AX_CMD_READ_NODE_ID, 0, 0, ETH_ALEN, buf, 0);
- if (ret < 0) {
+ if (ret < ETH_ALEN) {
netdev_err(dev->net, "Failed to read MAC address: %d\n", ret);
goto free;
}
diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c
index 00cab3f..c2c82e6 100644
--- a/drivers/net/usb/cdc_ncm.c
+++ b/drivers/net/usb/cdc_ncm.c
@@ -578,8 +578,8 @@ static void cdc_ncm_set_dgram_size(struct usbnet *dev, int new_size)
/* read current mtu value from device */
err = usbnet_read_cmd(dev, USB_CDC_GET_MAX_DATAGRAM_SIZE,
USB_TYPE_CLASS | USB_DIR_IN | USB_RECIP_INTERFACE,
- 0, iface_no, &max_datagram_size, 2);
- if (err < 0) {
+ 0, iface_no, &max_datagram_size, sizeof(max_datagram_size));
+ if (err != sizeof(max_datagram_size)) {
dev_dbg(&dev->intf->dev, "GET_MAX_DATAGRAM_SIZE failed\n");
goto out;
}
@@ -590,7 +590,7 @@ static void cdc_ncm_set_dgram_size(struct usbnet *dev, int new_size)
max_datagram_size = cpu_to_le16(ctx->max_datagram_size);
err = usbnet_write_cmd(dev, USB_CDC_SET_MAX_DATAGRAM_SIZE,
USB_TYPE_CLASS | USB_DIR_OUT | USB_RECIP_INTERFACE,
- 0, iface_no, &max_datagram_size, 2);
+ 0, iface_no, &max_datagram_size, sizeof(max_datagram_size));
if (err < 0)
dev_dbg(&dev->intf->dev, "SET_MAX_DATAGRAM_SIZE failed\n");
diff --git a/drivers/net/usb/qmi_wwan.c b/drivers/net/usb/qmi_wwan.c
index 596428e..4196c0e 100644
--- a/drivers/net/usb/qmi_wwan.c
+++ b/drivers/net/usb/qmi_wwan.c
@@ -1362,6 +1362,7 @@ static const struct usb_device_id products[] = {
{QMI_FIXED_INTF(0x413c, 0x81b6, 8)}, /* Dell Wireless 5811e */
{QMI_FIXED_INTF(0x413c, 0x81b6, 10)}, /* Dell Wireless 5811e */
{QMI_FIXED_INTF(0x413c, 0x81d7, 0)}, /* Dell Wireless 5821e */
+ {QMI_FIXED_INTF(0x413c, 0x81e0, 0)}, /* Dell Wireless 5821e with eSIM support*/
{QMI_FIXED_INTF(0x03f0, 0x4e1d, 8)}, /* HP lt4111 LTE/EV-DO/HSPA+ Gobi 4G Module */
{QMI_FIXED_INTF(0x03f0, 0x9d1d, 1)}, /* HP lt4120 Snapdragon X5 LTE */
{QMI_FIXED_INTF(0x22de, 0x9061, 3)}, /* WeTelecom WPD-600N */
@@ -1370,6 +1371,8 @@ static const struct usb_device_id products[] = {
{QMI_QUIRK_SET_DTR(0x2c7c, 0x0191, 4)}, /* Quectel EG91 */
{QMI_FIXED_INTF(0x2c7c, 0x0296, 4)}, /* Quectel BG96 */
{QMI_QUIRK_SET_DTR(0x2cb7, 0x0104, 4)}, /* Fibocom NL678 series */
+ {QMI_FIXED_INTF(0x0489, 0xe0b4, 0)}, /* Foxconn T77W968 LTE */
+ {QMI_FIXED_INTF(0x0489, 0xe0b5, 0)}, /* Foxconn T77W968 LTE with eSIM support*/
/* 4. Gobi 1000 devices */
{QMI_GOBI1K_DEVICE(0x05c6, 0x9212)}, /* Acer Gobi Modem Device */
diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/tx-gen2.c b/drivers/net/wireless/intel/iwlwifi/pcie/tx-gen2.c
index 8894027..d80f71f 100644
--- a/drivers/net/wireless/intel/iwlwifi/pcie/tx-gen2.c
+++ b/drivers/net/wireless/intel/iwlwifi/pcie/tx-gen2.c
@@ -251,27 +251,23 @@ static int iwl_pcie_gen2_build_amsdu(struct iwl_trans *trans,
struct ieee80211_hdr *hdr = (void *)skb->data;
unsigned int snap_ip_tcp_hdrlen, ip_hdrlen, total_len, hdr_room;
unsigned int mss = skb_shinfo(skb)->gso_size;
- u16 length, iv_len, amsdu_pad;
+ u16 length, amsdu_pad;
u8 *start_hdr;
struct iwl_tso_hdr_page *hdr_page;
struct page **page_ptr;
struct tso_t tso;
- /* if the packet is protected, then it must be CCMP or GCMP */
- iv_len = ieee80211_has_protected(hdr->frame_control) ?
- IEEE80211_CCMP_HDR_LEN : 0;
-
trace_iwlwifi_dev_tx(trans->dev, skb, tfd, sizeof(*tfd),
&dev_cmd->hdr, start_len, 0);
ip_hdrlen = skb_transport_header(skb) - skb_network_header(skb);
snap_ip_tcp_hdrlen = 8 + ip_hdrlen + tcp_hdrlen(skb);
- total_len = skb->len - snap_ip_tcp_hdrlen - hdr_len - iv_len;
+ total_len = skb->len - snap_ip_tcp_hdrlen - hdr_len;
amsdu_pad = 0;
/* total amount of header we may need for this A-MSDU */
hdr_room = DIV_ROUND_UP(total_len, mss) *
- (3 + snap_ip_tcp_hdrlen + sizeof(struct ethhdr)) + iv_len;
+ (3 + snap_ip_tcp_hdrlen + sizeof(struct ethhdr));
/* Our device supports 9 segments at most, it will fit in 1 page */
hdr_page = get_page_hdr(trans, hdr_room);
@@ -282,14 +278,12 @@ static int iwl_pcie_gen2_build_amsdu(struct iwl_trans *trans,
start_hdr = hdr_page->pos;
page_ptr = (void *)((u8 *)skb->cb + trans_pcie->page_offs);
*page_ptr = hdr_page->page;
- memcpy(hdr_page->pos, skb->data + hdr_len, iv_len);
- hdr_page->pos += iv_len;
/*
- * Pull the ieee80211 header + IV to be able to use TSO core,
+ * Pull the ieee80211 header to be able to use TSO core,
* we will restore it for the tx_status flow.
*/
- skb_pull(skb, hdr_len + iv_len);
+ skb_pull(skb, hdr_len);
/*
* Remove the length of all the headers that we don't actually
@@ -364,8 +358,8 @@ static int iwl_pcie_gen2_build_amsdu(struct iwl_trans *trans,
}
}
- /* re -add the WiFi header and IV */
- skb_push(skb, hdr_len + iv_len);
+ /* re -add the WiFi header */
+ skb_push(skb, hdr_len);
return 0;
diff --git a/drivers/nfc/fdp/i2c.c b/drivers/nfc/fdp/i2c.c
index 1cd113c..ad0abb1 100644
--- a/drivers/nfc/fdp/i2c.c
+++ b/drivers/nfc/fdp/i2c.c
@@ -259,7 +259,7 @@ static void fdp_nci_i2c_read_device_properties(struct device *dev,
*fw_vsc_cfg, len);
if (r) {
- devm_kfree(dev, fw_vsc_cfg);
+ devm_kfree(dev, *fw_vsc_cfg);
goto vsc_read_err;
}
} else {
diff --git a/drivers/nfc/nxp-nci/i2c.c b/drivers/nfc/nxp-nci/i2c.c
index 307bd2a..4d1909a 100644
--- a/drivers/nfc/nxp-nci/i2c.c
+++ b/drivers/nfc/nxp-nci/i2c.c
@@ -220,8 +220,10 @@ static irqreturn_t nxp_nci_i2c_irq_thread_fn(int irq, void *phy_id)
if (r == -EREMOTEIO) {
phy->hard_fault = r;
- skb = NULL;
- } else if (r < 0) {
+ if (info->mode == NXP_NCI_MODE_FW)
+ nxp_nci_fw_recv_frame(phy->ndev, NULL);
+ }
+ if (r < 0) {
nfc_err(&client->dev, "Read failed with error %d\n", r);
goto exit_irq_handled;
}
diff --git a/drivers/nfc/st21nfca/core.c b/drivers/nfc/st21nfca/core.c
index f9ac176..2ce1793 100644
--- a/drivers/nfc/st21nfca/core.c
+++ b/drivers/nfc/st21nfca/core.c
@@ -708,6 +708,7 @@ static int st21nfca_hci_complete_target_discovered(struct nfc_hci_dev *hdev,
NFC_PROTO_FELICA_MASK;
} else {
kfree_skb(nfcid_skb);
+ nfcid_skb = NULL;
/* P2P in type A */
r = nfc_hci_get_param(hdev, ST21NFCA_RF_READER_F_GATE,
ST21NFCA_RF_READER_F_NFCID1,
diff --git a/drivers/nvme/host/multipath.c b/drivers/nvme/host/multipath.c
index fc99a40..e0f064d 100644
--- a/drivers/nvme/host/multipath.c
+++ b/drivers/nvme/host/multipath.c
@@ -158,9 +158,11 @@ void nvme_mpath_clear_ctrl_paths(struct nvme_ctrl *ctrl)
struct nvme_ns *ns;
mutex_lock(&ctrl->scan_lock);
+ down_read(&ctrl->namespaces_rwsem);
list_for_each_entry(ns, &ctrl->namespaces, list)
if (nvme_mpath_clear_current_path(ns))
kblockd_schedule_work(&ns->head->requeue_work);
+ up_read(&ctrl->namespaces_rwsem);
mutex_unlock(&ctrl->scan_lock);
}
diff --git a/drivers/nvme/host/rdma.c b/drivers/nvme/host/rdma.c
index f19a28b..cb4c300 100644
--- a/drivers/nvme/host/rdma.c
+++ b/drivers/nvme/host/rdma.c
@@ -2133,8 +2133,16 @@ static int __init nvme_rdma_init_module(void)
static void __exit nvme_rdma_cleanup_module(void)
{
+ struct nvme_rdma_ctrl *ctrl;
+
nvmf_unregister_transport(&nvme_rdma_transport);
ib_unregister_client(&nvme_rdma_ib_client);
+
+ mutex_lock(&nvme_rdma_ctrl_mutex);
+ list_for_each_entry(ctrl, &nvme_rdma_ctrl_list, list)
+ nvme_delete_ctrl(&ctrl->ctrl);
+ mutex_unlock(&nvme_rdma_ctrl_mutex);
+ flush_workqueue(nvme_delete_wq);
}
module_init(nvme_rdma_init_module);
diff --git a/drivers/pinctrl/intel/pinctrl-cherryview.c b/drivers/pinctrl/intel/pinctrl-cherryview.c
index c6251ea..2c419fa 100644
--- a/drivers/pinctrl/intel/pinctrl-cherryview.c
+++ b/drivers/pinctrl/intel/pinctrl-cherryview.c
@@ -147,6 +147,7 @@ struct chv_pin_context {
* @pctldesc: Pin controller description
* @pctldev: Pointer to the pin controller device
* @chip: GPIO chip in this pin controller
+ * @irqchip: IRQ chip in this pin controller
* @regs: MMIO registers
* @intr_lines: Stores mapping between 16 HW interrupt wires and GPIO
* offset (in GPIO number space)
@@ -162,6 +163,7 @@ struct chv_pinctrl {
struct pinctrl_desc pctldesc;
struct pinctrl_dev *pctldev;
struct gpio_chip chip;
+ struct irq_chip irqchip;
void __iomem *regs;
unsigned intr_lines[16];
const struct chv_community *community;
@@ -1466,16 +1468,6 @@ static int chv_gpio_irq_type(struct irq_data *d, unsigned int type)
return 0;
}
-static struct irq_chip chv_gpio_irqchip = {
- .name = "chv-gpio",
- .irq_startup = chv_gpio_irq_startup,
- .irq_ack = chv_gpio_irq_ack,
- .irq_mask = chv_gpio_irq_mask,
- .irq_unmask = chv_gpio_irq_unmask,
- .irq_set_type = chv_gpio_irq_type,
- .flags = IRQCHIP_SKIP_SET_WAKE,
-};
-
static void chv_gpio_irq_handler(struct irq_desc *desc)
{
struct gpio_chip *gc = irq_desc_get_handler_data(desc);
@@ -1559,7 +1551,7 @@ static void chv_init_irq_valid_mask(struct gpio_chip *chip,
intsel >>= CHV_PADCTRL0_INTSEL_SHIFT;
if (intsel >= community->nirqs)
- clear_bit(i, valid_mask);
+ clear_bit(desc->number, valid_mask);
}
}
@@ -1625,7 +1617,15 @@ static int chv_gpio_probe(struct chv_pinctrl *pctrl, int irq)
}
}
- ret = gpiochip_irqchip_add(chip, &chv_gpio_irqchip, 0,
+ pctrl->irqchip.name = "chv-gpio";
+ pctrl->irqchip.irq_startup = chv_gpio_irq_startup;
+ pctrl->irqchip.irq_ack = chv_gpio_irq_ack;
+ pctrl->irqchip.irq_mask = chv_gpio_irq_mask;
+ pctrl->irqchip.irq_unmask = chv_gpio_irq_unmask;
+ pctrl->irqchip.irq_set_type = chv_gpio_irq_type;
+ pctrl->irqchip.flags = IRQCHIP_SKIP_SET_WAKE;
+
+ ret = gpiochip_irqchip_add(chip, &pctrl->irqchip, 0,
handle_bad_irq, IRQ_TYPE_NONE);
if (ret) {
dev_err(pctrl->dev, "failed to add IRQ chip\n");
@@ -1642,7 +1642,7 @@ static int chv_gpio_probe(struct chv_pinctrl *pctrl, int irq)
}
}
- gpiochip_set_chained_irqchip(chip, &chv_gpio_irqchip, irq,
+ gpiochip_set_chained_irqchip(chip, &pctrl->irqchip, irq,
chv_gpio_irq_handler);
return 0;
}
diff --git a/drivers/pinctrl/intel/pinctrl-intel.c b/drivers/pinctrl/intel/pinctrl-intel.c
index bc01359..83981ad 100644
--- a/drivers/pinctrl/intel/pinctrl-intel.c
+++ b/drivers/pinctrl/intel/pinctrl-intel.c
@@ -52,6 +52,7 @@
#define PADCFG0_GPIROUTNMI BIT(17)
#define PADCFG0_PMODE_SHIFT 10
#define PADCFG0_PMODE_MASK GENMASK(13, 10)
+#define PADCFG0_PMODE_GPIO 0
#define PADCFG0_GPIORXDIS BIT(9)
#define PADCFG0_GPIOTXDIS BIT(8)
#define PADCFG0_GPIORXSTATE BIT(1)
@@ -332,7 +333,7 @@ static void intel_pin_dbg_show(struct pinctrl_dev *pctldev, struct seq_file *s,
cfg1 = readl(intel_get_padcfg(pctrl, pin, PADCFG1));
mode = (cfg0 & PADCFG0_PMODE_MASK) >> PADCFG0_PMODE_SHIFT;
- if (!mode)
+ if (mode == PADCFG0_PMODE_GPIO)
seq_puts(s, "GPIO ");
else
seq_printf(s, "mode %d ", mode);
@@ -458,6 +459,11 @@ static void __intel_gpio_set_direction(void __iomem *padcfg0, bool input)
writel(value, padcfg0);
}
+static int intel_gpio_get_gpio_mode(void __iomem *padcfg0)
+{
+ return (readl(padcfg0) & PADCFG0_PMODE_MASK) >> PADCFG0_PMODE_SHIFT;
+}
+
static void intel_gpio_set_gpio_mode(void __iomem *padcfg0)
{
u32 value;
@@ -491,7 +497,20 @@ static int intel_gpio_request_enable(struct pinctrl_dev *pctldev,
}
padcfg0 = intel_get_padcfg(pctrl, pin, PADCFG0);
+
+ /*
+ * If pin is already configured in GPIO mode, we assume that
+ * firmware provides correct settings. In such case we avoid
+ * potential glitches on the pin. Otherwise, for the pin in
+ * alternative mode, consumer has to supply respective flags.
+ */
+ if (intel_gpio_get_gpio_mode(padcfg0) == PADCFG0_PMODE_GPIO) {
+ raw_spin_unlock_irqrestore(&pctrl->lock, flags);
+ return 0;
+ }
+
intel_gpio_set_gpio_mode(padcfg0);
+
/* Disable TX buffer and enable RX (this will be input) */
__intel_gpio_set_direction(padcfg0, true);
diff --git a/drivers/pinctrl/pinctrl-stmfx.c b/drivers/pinctrl/pinctrl-stmfx.c
index 5646600..ccdf0bb 100644
--- a/drivers/pinctrl/pinctrl-stmfx.c
+++ b/drivers/pinctrl/pinctrl-stmfx.c
@@ -585,19 +585,6 @@ static int stmfx_pinctrl_gpio_function_enable(struct stmfx_pinctrl *pctl)
return stmfx_function_enable(pctl->stmfx, func);
}
-static int stmfx_pinctrl_gpio_init_valid_mask(struct gpio_chip *gc,
- unsigned long *valid_mask,
- unsigned int ngpios)
-{
- struct stmfx_pinctrl *pctl = gpiochip_get_data(gc);
- u32 n;
-
- for_each_clear_bit(n, &pctl->gpio_valid_mask, ngpios)
- clear_bit(n, valid_mask);
-
- return 0;
-}
-
static int stmfx_pinctrl_probe(struct platform_device *pdev)
{
struct stmfx *stmfx = dev_get_drvdata(pdev->dev.parent);
@@ -660,7 +647,6 @@ static int stmfx_pinctrl_probe(struct platform_device *pdev)
pctl->gpio_chip.ngpio = pctl->pctl_desc.npins;
pctl->gpio_chip.can_sleep = true;
pctl->gpio_chip.of_node = np;
- pctl->gpio_chip.init_valid_mask = stmfx_pinctrl_gpio_init_valid_mask;
ret = devm_gpiochip_add_data(pctl->dev, &pctl->gpio_chip, pctl);
if (ret) {
diff --git a/drivers/ptp/ptp_chardev.c b/drivers/ptp/ptp_chardev.c
index 67d01998..9d72ab5 100644
--- a/drivers/ptp/ptp_chardev.c
+++ b/drivers/ptp/ptp_chardev.c
@@ -149,11 +149,21 @@ long ptp_ioctl(struct posix_clock *pc, unsigned int cmd, unsigned long arg)
err = -EFAULT;
break;
}
- if (((req.extts.flags & ~PTP_EXTTS_VALID_FLAGS) ||
- req.extts.rsv[0] || req.extts.rsv[1]) &&
- cmd == PTP_EXTTS_REQUEST2) {
- err = -EINVAL;
- break;
+ if (cmd == PTP_EXTTS_REQUEST2) {
+ /* Tell the drivers to check the flags carefully. */
+ req.extts.flags |= PTP_STRICT_FLAGS;
+ /* Make sure no reserved bit is set. */
+ if ((req.extts.flags & ~PTP_EXTTS_VALID_FLAGS) ||
+ req.extts.rsv[0] || req.extts.rsv[1]) {
+ err = -EINVAL;
+ break;
+ }
+ /* Ensure one of the rising/falling edge bits is set. */
+ if ((req.extts.flags & PTP_ENABLE_FEATURE) &&
+ (req.extts.flags & PTP_EXTTS_EDGES) == 0) {
+ err = -EINVAL;
+ break;
+ }
} else if (cmd == PTP_EXTTS_REQUEST) {
req.extts.flags &= PTP_EXTTS_V1_VALID_FLAGS;
req.extts.rsv[0] = 0;
diff --git a/drivers/pwm/pwm-bcm-iproc.c b/drivers/pwm/pwm-bcm-iproc.c
index 56c38cf..1f829ed 100644
--- a/drivers/pwm/pwm-bcm-iproc.c
+++ b/drivers/pwm/pwm-bcm-iproc.c
@@ -187,6 +187,7 @@ static int iproc_pwmc_apply(struct pwm_chip *chip, struct pwm_device *pwm,
static const struct pwm_ops iproc_pwm_ops = {
.apply = iproc_pwmc_apply,
.get_state = iproc_pwmc_get_state,
+ .owner = THIS_MODULE,
};
static int iproc_pwmc_probe(struct platform_device *pdev)
diff --git a/drivers/reset/core.c b/drivers/reset/core.c
index 213ff40..3c9a64c 100644
--- a/drivers/reset/core.c
+++ b/drivers/reset/core.c
@@ -76,7 +76,6 @@ static const char *rcdev_name(struct reset_controller_dev *rcdev)
* of_reset_simple_xlate - translate reset_spec to the reset line number
* @rcdev: a pointer to the reset controller device
* @reset_spec: reset line specifier as found in the device tree
- * @flags: a flags pointer to fill in (optional)
*
* This simple translation function should be used for reset controllers
* with 1:1 mapping, where reset lines can be indexed by number without gaps.
@@ -748,6 +747,7 @@ static void reset_control_array_put(struct reset_control_array *resets)
for (i = 0; i < resets->num_rstcs; i++)
__reset_control_put_internal(resets->rstc[i]);
mutex_unlock(&reset_list_mutex);
+ kfree(resets);
}
/**
@@ -825,9 +825,10 @@ int __device_reset(struct device *dev, bool optional)
}
EXPORT_SYMBOL_GPL(__device_reset);
-/**
+/*
* APIs to manage an array of reset controls.
*/
+
/**
* of_reset_control_get_count - Count number of resets available with a device
*
diff --git a/drivers/scsi/qla2xxx/qla_mid.c b/drivers/scsi/qla2xxx/qla_mid.c
index 6afad68..2382409 100644
--- a/drivers/scsi/qla2xxx/qla_mid.c
+++ b/drivers/scsi/qla2xxx/qla_mid.c
@@ -76,9 +76,11 @@ qla24xx_deallocate_vp_id(scsi_qla_host_t *vha)
* ensures no active vp_list traversal while the vport is removed
* from the queue)
*/
- for (i = 0; i < 10 && atomic_read(&vha->vref_count); i++)
- wait_event_timeout(vha->vref_waitq,
- atomic_read(&vha->vref_count), HZ);
+ for (i = 0; i < 10; i++) {
+ if (wait_event_timeout(vha->vref_waitq,
+ !atomic_read(&vha->vref_count), HZ) > 0)
+ break;
+ }
spin_lock_irqsave(&ha->vport_slock, flags);
if (atomic_read(&vha->vref_count)) {
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index 337162a..726ad4c 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -1119,9 +1119,11 @@ qla2x00_wait_for_sess_deletion(scsi_qla_host_t *vha)
qla2x00_mark_all_devices_lost(vha, 0);
- for (i = 0; i < 10; i++)
- wait_event_timeout(vha->fcport_waitQ, test_fcport_count(vha),
- HZ);
+ for (i = 0; i < 10; i++) {
+ if (wait_event_timeout(vha->fcport_waitQ,
+ test_fcport_count(vha), HZ) > 0)
+ break;
+ }
flush_workqueue(vha->hw->wq);
}
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index 5447738..91c007d 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -1883,7 +1883,8 @@ int scsi_mq_setup_tags(struct Scsi_Host *shost)
{
unsigned int cmd_size, sgl_size;
- sgl_size = scsi_mq_inline_sgl_size(shost);
+ sgl_size = max_t(unsigned int, sizeof(struct scatterlist),
+ scsi_mq_inline_sgl_size(shost));
cmd_size = sizeof(struct scsi_cmnd) + shost->hostt->cmd_size + sgl_size;
if (scsi_host_get_prot(shost))
cmd_size += sizeof(struct scsi_data_buffer) +
diff --git a/drivers/scsi/sd_zbc.c b/drivers/scsi/sd_zbc.c
index de4019d..1efc69e 100644
--- a/drivers/scsi/sd_zbc.c
+++ b/drivers/scsi/sd_zbc.c
@@ -263,25 +263,16 @@ void sd_zbc_complete(struct scsi_cmnd *cmd, unsigned int good_bytes,
int result = cmd->result;
struct request *rq = cmd->request;
- switch (req_op(rq)) {
- case REQ_OP_ZONE_RESET:
- case REQ_OP_ZONE_RESET_ALL:
-
- if (result &&
- sshdr->sense_key == ILLEGAL_REQUEST &&
- sshdr->asc == 0x24)
- /*
- * INVALID FIELD IN CDB error: reset of a conventional
- * zone was attempted. Nothing to worry about, so be
- * quiet about the error.
- */
- rq->rq_flags |= RQF_QUIET;
- break;
-
- case REQ_OP_WRITE:
- case REQ_OP_WRITE_ZEROES:
- case REQ_OP_WRITE_SAME:
- break;
+ if (req_op(rq) == REQ_OP_ZONE_RESET &&
+ result &&
+ sshdr->sense_key == ILLEGAL_REQUEST &&
+ sshdr->asc == 0x24) {
+ /*
+ * INVALID FIELD IN CDB error: reset of a conventional
+ * zone was attempted. Nothing to worry about, so be
+ * quiet about the error.
+ */
+ rq->rq_flags |= RQF_QUIET;
}
}
diff --git a/drivers/soc/imx/gpc.c b/drivers/soc/imx/gpc.c
index d9231bd..98b9d9a 100644
--- a/drivers/soc/imx/gpc.c
+++ b/drivers/soc/imx/gpc.c
@@ -249,13 +249,13 @@ static struct genpd_power_state imx6_pm_domain_pu_state = {
};
static struct imx_pm_domain imx_gpc_domains[] = {
- [GPC_PGC_DOMAIN_ARM] {
+ [GPC_PGC_DOMAIN_ARM] = {
.base = {
.name = "ARM",
.flags = GENPD_FLAG_ALWAYS_ON,
},
},
- [GPC_PGC_DOMAIN_PU] {
+ [GPC_PGC_DOMAIN_PU] = {
.base = {
.name = "PU",
.power_off = imx6_pm_domain_power_off,
@@ -266,7 +266,7 @@ static struct imx_pm_domain imx_gpc_domains[] = {
.reg_offs = 0x260,
.cntr_pdn_bit = 0,
},
- [GPC_PGC_DOMAIN_DISPLAY] {
+ [GPC_PGC_DOMAIN_DISPLAY] = {
.base = {
.name = "DISPLAY",
.power_off = imx6_pm_domain_power_off,
@@ -275,7 +275,7 @@ static struct imx_pm_domain imx_gpc_domains[] = {
.reg_offs = 0x240,
.cntr_pdn_bit = 4,
},
- [GPC_PGC_DOMAIN_PCI] {
+ [GPC_PGC_DOMAIN_PCI] = {
.base = {
.name = "PCI",
.power_off = imx6_pm_domain_power_off,
diff --git a/drivers/soundwire/Kconfig b/drivers/soundwire/Kconfig
index f518273c..c8c80df 100644
--- a/drivers/soundwire/Kconfig
+++ b/drivers/soundwire/Kconfig
@@ -5,6 +5,7 @@
menuconfig SOUNDWIRE
tristate "SoundWire support"
+ depends on ACPI || OF
help
SoundWire is a 2-Pin interface with data and clock line ratified
by the MIPI Alliance. SoundWire is used for transporting data
diff --git a/drivers/soundwire/intel.c b/drivers/soundwire/intel.c
index f1e38a2..13c54ea 100644
--- a/drivers/soundwire/intel.c
+++ b/drivers/soundwire/intel.c
@@ -900,7 +900,7 @@ static int intel_register_dai(struct sdw_intel *sdw)
/* Create PCM DAIs */
stream = &cdns->pcm;
- ret = intel_create_dai(cdns, dais, INTEL_PDI_IN, stream->num_in,
+ ret = intel_create_dai(cdns, dais, INTEL_PDI_IN, cdns->pcm.num_in,
off, stream->num_ch_in, true);
if (ret)
return ret;
@@ -931,7 +931,7 @@ static int intel_register_dai(struct sdw_intel *sdw)
if (ret)
return ret;
- off += cdns->pdm.num_bd;
+ off += cdns->pdm.num_out;
ret = intel_create_dai(cdns, dais, INTEL_PDI_BD, cdns->pdm.num_bd,
off, stream->num_ch_bd, false);
if (ret)
diff --git a/drivers/soundwire/slave.c b/drivers/soundwire/slave.c
index 48a63ca..6473fa6 100644
--- a/drivers/soundwire/slave.c
+++ b/drivers/soundwire/slave.c
@@ -128,7 +128,8 @@ int sdw_of_find_slaves(struct sdw_bus *bus)
struct device_node *node;
for_each_child_of_node(bus->dev->of_node, node) {
- int link_id, sdw_version, ret, len;
+ int link_id, ret, len;
+ unsigned int sdw_version;
const char *compat = NULL;
struct sdw_slave_id id;
const __be32 *addr;
diff --git a/drivers/thunderbolt/nhi_ops.c b/drivers/thunderbolt/nhi_ops.c
index 61cd09c..6795851 100644
--- a/drivers/thunderbolt/nhi_ops.c
+++ b/drivers/thunderbolt/nhi_ops.c
@@ -80,7 +80,6 @@ static void icl_nhi_lc_mailbox_cmd(struct tb_nhi *nhi, enum icl_lc_mailbox_cmd c
{
u32 data;
- pci_read_config_dword(nhi->pdev, VS_CAP_19, &data);
data = (cmd << VS_CAP_19_CMD_SHIFT) & VS_CAP_19_CMD_MASK;
pci_write_config_dword(nhi->pdev, VS_CAP_19, data | VS_CAP_19_VALID);
}
diff --git a/drivers/thunderbolt/switch.c b/drivers/thunderbolt/switch.c
index 410bf1b..5ea8db6 100644
--- a/drivers/thunderbolt/switch.c
+++ b/drivers/thunderbolt/switch.c
@@ -896,12 +896,13 @@ int tb_dp_port_set_hops(struct tb_port *port, unsigned int video,
*/
bool tb_dp_port_is_enabled(struct tb_port *port)
{
- u32 data;
+ u32 data[2];
- if (tb_port_read(port, &data, TB_CFG_PORT, port->cap_adap, 1))
+ if (tb_port_read(port, data, TB_CFG_PORT, port->cap_adap,
+ ARRAY_SIZE(data)))
return false;
- return !!(data & (TB_DP_VIDEO_EN | TB_DP_AUX_EN));
+ return !!(data[0] & (TB_DP_VIDEO_EN | TB_DP_AUX_EN));
}
/**
@@ -914,19 +915,21 @@ bool tb_dp_port_is_enabled(struct tb_port *port)
*/
int tb_dp_port_enable(struct tb_port *port, bool enable)
{
- u32 data;
+ u32 data[2];
int ret;
- ret = tb_port_read(port, &data, TB_CFG_PORT, port->cap_adap, 1);
+ ret = tb_port_read(port, data, TB_CFG_PORT, port->cap_adap,
+ ARRAY_SIZE(data));
if (ret)
return ret;
if (enable)
- data |= TB_DP_VIDEO_EN | TB_DP_AUX_EN;
+ data[0] |= TB_DP_VIDEO_EN | TB_DP_AUX_EN;
else
- data &= ~(TB_DP_VIDEO_EN | TB_DP_AUX_EN);
+ data[0] &= ~(TB_DP_VIDEO_EN | TB_DP_AUX_EN);
- return tb_port_write(port, &data, TB_CFG_PORT, port->cap_adap, 1);
+ return tb_port_write(port, data, TB_CFG_PORT, port->cap_adap,
+ ARRAY_SIZE(data));
}
/* switch utility functions */
@@ -1031,13 +1034,6 @@ static int tb_switch_set_authorized(struct tb_switch *sw, unsigned int val)
if (sw->authorized)
goto unlock;
- /*
- * Make sure there is no PCIe rescan ongoing when a new PCIe
- * tunnel is created. Otherwise the PCIe rescan code might find
- * the new tunnel too early.
- */
- pci_lock_rescan_remove();
-
switch (val) {
/* Approve switch */
case 1:
@@ -1057,8 +1053,6 @@ static int tb_switch_set_authorized(struct tb_switch *sw, unsigned int val)
break;
}
- pci_unlock_rescan_remove();
-
if (!ret) {
sw->authorized = val;
/* Notify status change to the userspace */
diff --git a/drivers/video/fbdev/c2p_core.h b/drivers/video/fbdev/c2p_core.h
index e1035a8..45a6d89 100644
--- a/drivers/video/fbdev/c2p_core.h
+++ b/drivers/video/fbdev/c2p_core.h
@@ -29,7 +29,7 @@ static inline void _transp(u32 d[], unsigned int i1, unsigned int i2,
extern void c2p_unsupported(void);
-static inline u32 get_mask(unsigned int n)
+static __always_inline u32 get_mask(unsigned int n)
{
switch (n) {
case 1:
@@ -57,7 +57,7 @@ static inline u32 get_mask(unsigned int n)
* Transpose operations on 8 32-bit words
*/
-static inline void transp8(u32 d[], unsigned int n, unsigned int m)
+static __always_inline void transp8(u32 d[], unsigned int n, unsigned int m)
{
u32 mask = get_mask(n);
@@ -99,7 +99,7 @@ static inline void transp8(u32 d[], unsigned int n, unsigned int m)
* Transpose operations on 4 32-bit words
*/
-static inline void transp4(u32 d[], unsigned int n, unsigned int m)
+static __always_inline void transp4(u32 d[], unsigned int n, unsigned int m)
{
u32 mask = get_mask(n);
@@ -126,7 +126,7 @@ static inline void transp4(u32 d[], unsigned int n, unsigned int m)
* Transpose operations on 4 32-bit words (reverse order)
*/
-static inline void transp4x(u32 d[], unsigned int n, unsigned int m)
+static __always_inline void transp4x(u32 d[], unsigned int n, unsigned int m)
{
u32 mask = get_mask(n);
diff --git a/drivers/watchdog/bd70528_wdt.c b/drivers/watchdog/bd70528_wdt.c
index b0152fe..bc60e03 100644
--- a/drivers/watchdog/bd70528_wdt.c
+++ b/drivers/watchdog/bd70528_wdt.c
@@ -288,3 +288,4 @@ module_platform_driver(bd70528_wdt);
MODULE_AUTHOR("Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>");
MODULE_DESCRIPTION("BD70528 watchdog driver");
MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:bd70528-wdt");
diff --git a/drivers/watchdog/cpwd.c b/drivers/watchdog/cpwd.c
index 9393be5..808eeb4 100644
--- a/drivers/watchdog/cpwd.c
+++ b/drivers/watchdog/cpwd.c
@@ -26,6 +26,7 @@
#include <linux/interrupt.h>
#include <linux/ioport.h>
#include <linux/timer.h>
+#include <linux/compat.h>
#include <linux/slab.h>
#include <linux/mutex.h>
#include <linux/io.h>
@@ -473,6 +474,11 @@ static long cpwd_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
return 0;
}
+static long cpwd_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+ return cpwd_ioctl(file, cmd, (unsigned long)compat_ptr(arg));
+}
+
static ssize_t cpwd_write(struct file *file, const char __user *buf,
size_t count, loff_t *ppos)
{
@@ -497,7 +503,7 @@ static ssize_t cpwd_read(struct file *file, char __user *buffer,
static const struct file_operations cpwd_fops = {
.owner = THIS_MODULE,
.unlocked_ioctl = cpwd_ioctl,
- .compat_ioctl = compat_ptr_ioctl,
+ .compat_ioctl = cpwd_compat_ioctl,
.open = cpwd_open,
.write = cpwd_write,
.read = cpwd_read,
diff --git a/drivers/watchdog/imx_sc_wdt.c b/drivers/watchdog/imx_sc_wdt.c
index 7ea5cf5..8ed89f0 100644
--- a/drivers/watchdog/imx_sc_wdt.c
+++ b/drivers/watchdog/imx_sc_wdt.c
@@ -99,8 +99,14 @@ static int imx_sc_wdt_set_pretimeout(struct watchdog_device *wdog,
{
struct arm_smccc_res res;
+ /*
+ * SCU firmware calculates pretimeout based on current time
+ * stamp instead of watchdog timeout stamp, need to convert
+ * the pretimeout to SCU firmware's timeout value.
+ */
arm_smccc_smc(IMX_SIP_TIMER, IMX_SIP_TIMER_SET_PRETIME_WDOG,
- pretimeout * 1000, 0, 0, 0, 0, 0, &res);
+ (wdog->timeout - pretimeout) * 1000, 0, 0, 0,
+ 0, 0, &res);
if (res.a0)
return -EACCES;
diff --git a/drivers/watchdog/meson_gxbb_wdt.c b/drivers/watchdog/meson_gxbb_wdt.c
index d17c1a6..5a9ca10 100644
--- a/drivers/watchdog/meson_gxbb_wdt.c
+++ b/drivers/watchdog/meson_gxbb_wdt.c
@@ -89,8 +89,8 @@ static unsigned int meson_gxbb_wdt_get_timeleft(struct watchdog_device *wdt_dev)
reg = readl(data->reg_base + GXBB_WDT_TCNT_REG);
- return ((reg >> GXBB_WDT_TCNT_CNT_SHIFT) -
- (reg & GXBB_WDT_TCNT_SETUP_MASK)) / 1000;
+ return ((reg & GXBB_WDT_TCNT_SETUP_MASK) -
+ (reg >> GXBB_WDT_TCNT_CNT_SHIFT)) / 1000;
}
static const struct watchdog_ops meson_gxbb_wdt_ops = {
diff --git a/drivers/watchdog/pm8916_wdt.c b/drivers/watchdog/pm8916_wdt.c
index 2d36520..1213179 100644
--- a/drivers/watchdog/pm8916_wdt.c
+++ b/drivers/watchdog/pm8916_wdt.c
@@ -163,9 +163,17 @@ static int pm8916_wdt_probe(struct platform_device *pdev)
irq = platform_get_irq(pdev, 0);
if (irq > 0) {
- if (devm_request_irq(dev, irq, pm8916_wdt_isr, 0, "pm8916_wdt",
- wdt))
- irq = 0;
+ err = devm_request_irq(dev, irq, pm8916_wdt_isr, 0,
+ "pm8916_wdt", wdt);
+ if (err)
+ return err;
+
+ wdt->wdev.info = &pm8916_wdt_pt_ident;
+ } else {
+ if (irq == -EPROBE_DEFER)
+ return -EPROBE_DEFER;
+
+ wdt->wdev.info = &pm8916_wdt_ident;
}
/* Configure watchdog to hard-reset mode */
@@ -177,7 +185,6 @@ static int pm8916_wdt_probe(struct platform_device *pdev)
return err;
}
- wdt->wdev.info = (irq > 0) ? &pm8916_wdt_pt_ident : &pm8916_wdt_ident,
wdt->wdev.ops = &pm8916_wdt_ops,
wdt->wdev.parent = dev;
wdt->wdev.min_timeout = PM8916_WDT_MIN_TIMEOUT;
diff --git a/fs/afs/dir.c b/fs/afs/dir.c
index cc12772..497f979 100644
--- a/fs/afs/dir.c
+++ b/fs/afs/dir.c
@@ -803,7 +803,12 @@ static struct inode *afs_do_lookup(struct inode *dir, struct dentry *dentry,
continue;
if (cookie->inodes[i]) {
- afs_vnode_commit_status(&fc, AFS_FS_I(cookie->inodes[i]),
+ struct afs_vnode *iv = AFS_FS_I(cookie->inodes[i]);
+
+ if (test_bit(AFS_VNODE_UNSET, &iv->flags))
+ continue;
+
+ afs_vnode_commit_status(&fc, iv,
scb->cb_break, NULL, scb);
continue;
}
diff --git a/fs/aio.c b/fs/aio.c
index 01e0fb9..0d9a559 100644
--- a/fs/aio.c
+++ b/fs/aio.c
@@ -2179,7 +2179,7 @@ SYSCALL_DEFINE5(io_getevents_time32, __u32, ctx_id,
#ifdef CONFIG_COMPAT
struct __compat_aio_sigset {
- compat_sigset_t __user *sigmask;
+ compat_uptr_t sigmask;
compat_size_t sigsetsize;
};
@@ -2193,7 +2193,7 @@ COMPAT_SYSCALL_DEFINE6(io_pgetevents,
struct old_timespec32 __user *, timeout,
const struct __compat_aio_sigset __user *, usig)
{
- struct __compat_aio_sigset ksig = { NULL, };
+ struct __compat_aio_sigset ksig = { 0, };
struct timespec64 t;
bool interrupted;
int ret;
@@ -2204,7 +2204,7 @@ COMPAT_SYSCALL_DEFINE6(io_pgetevents,
if (usig && copy_from_user(&ksig, usig, sizeof(ksig)))
return -EFAULT;
- ret = set_compat_user_sigmask(ksig.sigmask, ksig.sigsetsize);
+ ret = set_compat_user_sigmask(compat_ptr(ksig.sigmask), ksig.sigsetsize);
if (ret)
return ret;
@@ -2228,7 +2228,7 @@ COMPAT_SYSCALL_DEFINE6(io_pgetevents_time64,
struct __kernel_timespec __user *, timeout,
const struct __compat_aio_sigset __user *, usig)
{
- struct __compat_aio_sigset ksig = { NULL, };
+ struct __compat_aio_sigset ksig = { 0, };
struct timespec64 t;
bool interrupted;
int ret;
@@ -2239,7 +2239,7 @@ COMPAT_SYSCALL_DEFINE6(io_pgetevents_time64,
if (usig && copy_from_user(&ksig, usig, sizeof(ksig)))
return -EFAULT;
- ret = set_compat_user_sigmask(ksig.sigmask, ksig.sigsetsize);
+ ret = set_compat_user_sigmask(compat_ptr(ksig.sigmask), ksig.sigsetsize);
if (ret)
return ret;
diff --git a/fs/autofs/expire.c b/fs/autofs/expire.c
index 2866fab..91f5787 100644
--- a/fs/autofs/expire.c
+++ b/fs/autofs/expire.c
@@ -459,9 +459,10 @@ static struct dentry *autofs_expire_indirect(struct super_block *sb,
*/
how &= ~AUTOFS_EXP_LEAVES;
found = should_expire(expired, mnt, timeout, how);
- if (!found || found != expired)
- /* Something has changed, continue */
+ if (found != expired) { // something has changed, continue
+ dput(found);
goto next;
+ }
if (expired != dentry)
dput(dentry);
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index c3f386b..0159100 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -474,6 +474,7 @@ static noinline int compress_file_range(struct async_chunk *async_chunk)
u64 start = async_chunk->start;
u64 end = async_chunk->end;
u64 actual_end;
+ u64 i_size;
int ret = 0;
struct page **pages = NULL;
unsigned long nr_pages;
@@ -488,7 +489,19 @@ static noinline int compress_file_range(struct async_chunk *async_chunk)
inode_should_defrag(BTRFS_I(inode), start, end, end - start + 1,
SZ_16K);
- actual_end = min_t(u64, i_size_read(inode), end + 1);
+ /*
+ * We need to save i_size before now because it could change in between
+ * us evaluating the size and assigning it. This is because we lock and
+ * unlock the page in truncate and fallocate, and then modify the i_size
+ * later on.
+ *
+ * The barriers are to emulate READ_ONCE, remove that once i_size_read
+ * does that for us.
+ */
+ barrier();
+ i_size = i_size_read(inode);
+ barrier();
+ actual_end = min_t(u64, i_size, end + 1);
again:
will_compress = 0;
nr_pages = (end >> PAGE_SHIFT) - (start >> PAGE_SHIFT) + 1;
@@ -9731,6 +9744,18 @@ static int btrfs_rename_exchange(struct inode *old_dir,
commit_transaction = true;
}
if (commit_transaction) {
+ /*
+ * We may have set commit_transaction when logging the new name
+ * in the destination root, in which case we left the source
+ * root context in the list of log contextes. So make sure we
+ * remove it to avoid invalid memory accesses, since the context
+ * was allocated in our stack frame.
+ */
+ if (sync_log_root) {
+ mutex_lock(&root->log_mutex);
+ list_del_init(&ctx_root.list);
+ mutex_unlock(&root->log_mutex);
+ }
ret = btrfs_commit_transaction(trans);
} else {
int ret2;
@@ -9744,6 +9769,9 @@ static int btrfs_rename_exchange(struct inode *old_dir,
if (old_ino == BTRFS_FIRST_FREE_OBJECTID)
up_read(&fs_info->subvol_sem);
+ ASSERT(list_empty(&ctx_root.list));
+ ASSERT(list_empty(&ctx_dest.list));
+
return ret;
}
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 7c145a4..23272d9 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -4195,9 +4195,6 @@ static noinline long btrfs_ioctl_start_sync(struct btrfs_root *root,
u64 transid;
int ret;
- btrfs_warn(root->fs_info,
- "START_SYNC ioctl is deprecated and will be removed in kernel 5.7");
-
trans = btrfs_attach_transaction_barrier(root);
if (IS_ERR(trans)) {
if (PTR_ERR(trans) != -ENOENT)
@@ -4225,9 +4222,6 @@ static noinline long btrfs_ioctl_wait_sync(struct btrfs_fs_info *fs_info,
{
u64 transid;
- btrfs_warn(fs_info,
- "WAIT_SYNC ioctl is deprecated and will be removed in kernel 5.7");
-
if (argp) {
if (copy_from_user(&transid, argp, sizeof(transid)))
return -EFAULT;
diff --git a/fs/btrfs/space-info.c b/fs/btrfs/space-info.c
index 98dc092..e8a4b0e 100644
--- a/fs/btrfs/space-info.c
+++ b/fs/btrfs/space-info.c
@@ -893,6 +893,15 @@ static void wait_reserve_ticket(struct btrfs_fs_info *fs_info,
while (ticket->bytes > 0 && ticket->error == 0) {
ret = prepare_to_wait_event(&ticket->wait, &wait, TASK_KILLABLE);
if (ret) {
+ /*
+ * Delete us from the list. After we unlock the space
+ * info, we don't want the async reclaim job to reserve
+ * space for this ticket. If that would happen, then the
+ * ticket's task would not known that space was reserved
+ * despite getting an error, resulting in a space leak
+ * (bytes_may_use counter of our space_info).
+ */
+ list_del_init(&ticket->list);
ticket->error = -EINTR;
break;
}
@@ -945,12 +954,24 @@ static int handle_reserve_ticket(struct btrfs_fs_info *fs_info,
spin_lock(&space_info->lock);
ret = ticket->error;
if (ticket->bytes || ticket->error) {
+ /*
+ * Need to delete here for priority tickets. For regular tickets
+ * either the async reclaim job deletes the ticket from the list
+ * or we delete it ourselves at wait_reserve_ticket().
+ */
list_del_init(&ticket->list);
if (!ret)
ret = -ENOSPC;
}
spin_unlock(&space_info->lock);
ASSERT(list_empty(&ticket->list));
+ /*
+ * Check that we can't have an error set if the reservation succeeded,
+ * as that would confuse tasks and lead them to error out without
+ * releasing reserved space (if an error happens the expectation is that
+ * space wasn't reserved at all).
+ */
+ ASSERT(!(ticket->bytes == 0 && ticket->error));
return ret;
}
diff --git a/fs/btrfs/tree-checker.c b/fs/btrfs/tree-checker.c
index 43e488f..076d5b8 100644
--- a/fs/btrfs/tree-checker.c
+++ b/fs/btrfs/tree-checker.c
@@ -686,9 +686,7 @@ static void dev_item_err(const struct extent_buffer *eb, int slot,
static int check_dev_item(struct extent_buffer *leaf,
struct btrfs_key *key, int slot)
{
- struct btrfs_fs_info *fs_info = leaf->fs_info;
struct btrfs_dev_item *ditem;
- u64 max_devid = max(BTRFS_MAX_DEVS(fs_info), BTRFS_MAX_DEVS_SYS_CHUNK);
if (key->objectid != BTRFS_DEV_ITEMS_OBJECTID) {
dev_item_err(leaf, slot,
@@ -696,12 +694,6 @@ static int check_dev_item(struct extent_buffer *leaf,
key->objectid, BTRFS_DEV_ITEMS_OBJECTID);
return -EUCLEAN;
}
- if (key->offset > max_devid) {
- dev_item_err(leaf, slot,
- "invalid devid: has=%llu expect=[0, %llu]",
- key->offset, max_devid);
- return -EUCLEAN;
- }
ditem = btrfs_item_ptr(leaf, slot, struct btrfs_dev_item);
if (btrfs_device_id(leaf, ditem) != key->offset) {
dev_item_err(leaf, slot,
diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index bdfe449..e04409f 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -4967,6 +4967,7 @@ static int __btrfs_alloc_chunk(struct btrfs_trans_handle *trans,
} else if (type & BTRFS_BLOCK_GROUP_SYSTEM) {
max_stripe_size = SZ_32M;
max_chunk_size = 2 * max_stripe_size;
+ devs_max = min_t(int, devs_max, BTRFS_MAX_DEVS_SYS_CHUNK);
} else {
btrfs_err(info, "invalid chunk type 0x%llx requested",
type);
diff --git a/fs/ceph/caps.c b/fs/ceph/caps.c
index d3b9c9d..f5a3891 100644
--- a/fs/ceph/caps.c
+++ b/fs/ceph/caps.c
@@ -1058,6 +1058,11 @@ void __ceph_remove_cap(struct ceph_cap *cap, bool queue_release)
dout("__ceph_remove_cap %p from %p\n", cap, &ci->vfs_inode);
+ /* remove from inode's cap rbtree, and clear auth cap */
+ rb_erase(&cap->ci_node, &ci->i_caps);
+ if (ci->i_auth_cap == cap)
+ ci->i_auth_cap = NULL;
+
/* remove from session list */
spin_lock(&session->s_cap_lock);
if (session->s_cap_iterator == cap) {
@@ -1091,11 +1096,6 @@ void __ceph_remove_cap(struct ceph_cap *cap, bool queue_release)
spin_unlock(&session->s_cap_lock);
- /* remove from inode list */
- rb_erase(&cap->ci_node, &ci->i_caps);
- if (ci->i_auth_cap == cap)
- ci->i_auth_cap = NULL;
-
if (removed)
ceph_put_cap(mdsc, cap);
diff --git a/fs/ceph/dir.c b/fs/ceph/dir.c
index 4ca0b8f..d17a789 100644
--- a/fs/ceph/dir.c
+++ b/fs/ceph/dir.c
@@ -1553,36 +1553,37 @@ static int ceph_d_revalidate(struct dentry *dentry, unsigned int flags)
{
int valid = 0;
struct dentry *parent;
- struct inode *dir;
+ struct inode *dir, *inode;
if (flags & LOOKUP_RCU) {
parent = READ_ONCE(dentry->d_parent);
dir = d_inode_rcu(parent);
if (!dir)
return -ECHILD;
+ inode = d_inode_rcu(dentry);
} else {
parent = dget_parent(dentry);
dir = d_inode(parent);
+ inode = d_inode(dentry);
}
dout("d_revalidate %p '%pd' inode %p offset %lld\n", dentry,
- dentry, d_inode(dentry), ceph_dentry(dentry)->offset);
+ dentry, inode, ceph_dentry(dentry)->offset);
/* always trust cached snapped dentries, snapdir dentry */
if (ceph_snap(dir) != CEPH_NOSNAP) {
dout("d_revalidate %p '%pd' inode %p is SNAPPED\n", dentry,
- dentry, d_inode(dentry));
+ dentry, inode);
valid = 1;
- } else if (d_really_is_positive(dentry) &&
- ceph_snap(d_inode(dentry)) == CEPH_SNAPDIR) {
+ } else if (inode && ceph_snap(inode) == CEPH_SNAPDIR) {
valid = 1;
} else {
valid = dentry_lease_is_valid(dentry, flags);
if (valid == -ECHILD)
return valid;
if (valid || dir_lease_is_valid(dir, dentry)) {
- if (d_really_is_positive(dentry))
- valid = ceph_is_any_caps(d_inode(dentry));
+ if (inode)
+ valid = ceph_is_any_caps(inode);
else
valid = 1;
}
diff --git a/fs/ceph/file.c b/fs/ceph/file.c
index d277f71..8de6339 100644
--- a/fs/ceph/file.c
+++ b/fs/ceph/file.c
@@ -462,6 +462,9 @@ int ceph_atomic_open(struct inode *dir, struct dentry *dentry,
err = ceph_security_init_secctx(dentry, mode, &as_ctx);
if (err < 0)
goto out_ctx;
+ } else if (!d_in_lookup(dentry)) {
+ /* If it's not being looked up, it's negative */
+ return -ENOENT;
}
/* do the open */
@@ -750,6 +753,9 @@ static void ceph_aio_complete(struct inode *inode,
if (!atomic_dec_and_test(&aio_req->pending_reqs))
return;
+ if (aio_req->iocb->ki_flags & IOCB_DIRECT)
+ inode_dio_end(inode);
+
ret = aio_req->error;
if (!ret)
ret = aio_req->total_len;
@@ -1088,6 +1094,7 @@ ceph_direct_read_write(struct kiocb *iocb, struct iov_iter *iter,
CEPH_CAP_FILE_RD);
list_splice(&aio_req->osd_reqs, &osd_reqs);
+ inode_dio_begin(inode);
while (!list_empty(&osd_reqs)) {
req = list_first_entry(&osd_reqs,
struct ceph_osd_request,
@@ -1261,14 +1268,24 @@ static ssize_t ceph_read_iter(struct kiocb *iocb, struct iov_iter *to)
dout("aio_read %p %llx.%llx %llu~%u trying to get caps on %p\n",
inode, ceph_vinop(inode), iocb->ki_pos, (unsigned)len, inode);
+ if (iocb->ki_flags & IOCB_DIRECT)
+ ceph_start_io_direct(inode);
+ else
+ ceph_start_io_read(inode);
+
if (fi->fmode & CEPH_FILE_MODE_LAZY)
want = CEPH_CAP_FILE_CACHE | CEPH_CAP_FILE_LAZYIO;
else
want = CEPH_CAP_FILE_CACHE;
ret = ceph_get_caps(filp, CEPH_CAP_FILE_RD, want, -1,
&got, &pinned_page);
- if (ret < 0)
+ if (ret < 0) {
+ if (iocb->ki_flags & IOCB_DIRECT)
+ ceph_end_io_direct(inode);
+ else
+ ceph_end_io_read(inode);
return ret;
+ }
if ((got & (CEPH_CAP_FILE_CACHE|CEPH_CAP_FILE_LAZYIO)) == 0 ||
(iocb->ki_flags & IOCB_DIRECT) ||
@@ -1280,16 +1297,12 @@ static ssize_t ceph_read_iter(struct kiocb *iocb, struct iov_iter *to)
if (ci->i_inline_version == CEPH_INLINE_NONE) {
if (!retry_op && (iocb->ki_flags & IOCB_DIRECT)) {
- ceph_start_io_direct(inode);
ret = ceph_direct_read_write(iocb, to,
NULL, NULL);
- ceph_end_io_direct(inode);
if (ret >= 0 && ret < len)
retry_op = CHECK_EOF;
} else {
- ceph_start_io_read(inode);
ret = ceph_sync_read(iocb, to, &retry_op);
- ceph_end_io_read(inode);
}
} else {
retry_op = READ_INLINE;
@@ -1300,11 +1313,10 @@ static ssize_t ceph_read_iter(struct kiocb *iocb, struct iov_iter *to)
inode, ceph_vinop(inode), iocb->ki_pos, (unsigned)len,
ceph_cap_string(got));
ceph_add_rw_context(fi, &rw_ctx);
- ceph_start_io_read(inode);
ret = generic_file_read_iter(iocb, to);
- ceph_end_io_read(inode);
ceph_del_rw_context(fi, &rw_ctx);
}
+
dout("aio_read %p %llx.%llx dropping cap refs on %s = %d\n",
inode, ceph_vinop(inode), ceph_cap_string(got), (int)ret);
if (pinned_page) {
@@ -1312,6 +1324,12 @@ static ssize_t ceph_read_iter(struct kiocb *iocb, struct iov_iter *to)
pinned_page = NULL;
}
ceph_put_cap_refs(ci, got);
+
+ if (iocb->ki_flags & IOCB_DIRECT)
+ ceph_end_io_direct(inode);
+ else
+ ceph_end_io_read(inode);
+
if (retry_op > HAVE_RETRIED && ret >= 0) {
int statret;
struct page *page = NULL;
@@ -1956,10 +1974,18 @@ static ssize_t __ceph_copy_file_range(struct file *src_file, loff_t src_off,
if (ceph_test_mount_opt(src_fsc, NOCOPYFROM))
return -EOPNOTSUPP;
+ /*
+ * Striped file layouts require that we copy partial objects, but the
+ * OSD copy-from operation only supports full-object copies. Limit
+ * this to non-striped file layouts for now.
+ */
if ((src_ci->i_layout.stripe_unit != dst_ci->i_layout.stripe_unit) ||
- (src_ci->i_layout.stripe_count != dst_ci->i_layout.stripe_count) ||
- (src_ci->i_layout.object_size != dst_ci->i_layout.object_size))
+ (src_ci->i_layout.stripe_count != 1) ||
+ (dst_ci->i_layout.stripe_count != 1) ||
+ (src_ci->i_layout.object_size != dst_ci->i_layout.object_size)) {
+ dout("Invalid src/dst files layout\n");
return -EOPNOTSUPP;
+ }
if (len < src_ci->i_layout.object_size)
return -EOPNOTSUPP; /* no remote copy will be done */
diff --git a/fs/ceph/inode.c b/fs/ceph/inode.c
index 9f13562..c074075 100644
--- a/fs/ceph/inode.c
+++ b/fs/ceph/inode.c
@@ -1434,6 +1434,7 @@ int ceph_fill_trace(struct super_block *sb, struct ceph_mds_request *req)
dout(" final dn %p\n", dn);
} else if ((req->r_op == CEPH_MDS_OP_LOOKUPSNAP ||
req->r_op == CEPH_MDS_OP_MKSNAP) &&
+ test_bit(CEPH_MDS_R_PARENT_LOCKED, &req->r_req_flags) &&
!test_bit(CEPH_MDS_R_ABORTED, &req->r_req_flags)) {
struct inode *dir = req->r_parent;
diff --git a/fs/ceph/super.c b/fs/ceph/super.c
index edfd643..b47f43f 100644
--- a/fs/ceph/super.c
+++ b/fs/ceph/super.c
@@ -268,6 +268,7 @@ static int parse_fsopt_token(char *c, void *private)
}
break;
case Opt_fscache_uniq:
+#ifdef CONFIG_CEPH_FSCACHE
kfree(fsopt->fscache_uniq);
fsopt->fscache_uniq = kstrndup(argstr[0].from,
argstr[0].to-argstr[0].from,
@@ -276,7 +277,10 @@ static int parse_fsopt_token(char *c, void *private)
return -ENOMEM;
fsopt->flags |= CEPH_MOUNT_OPT_FSCACHE;
break;
- /* misc */
+#else
+ pr_err("fscache support is disabled\n");
+ return -EINVAL;
+#endif
case Opt_wsize:
if (intval < (int)PAGE_SIZE || intval > CEPH_MAX_WRITE_SIZE)
return -EINVAL;
@@ -353,10 +357,15 @@ static int parse_fsopt_token(char *c, void *private)
fsopt->flags &= ~CEPH_MOUNT_OPT_INO32;
break;
case Opt_fscache:
+#ifdef CONFIG_CEPH_FSCACHE
fsopt->flags |= CEPH_MOUNT_OPT_FSCACHE;
kfree(fsopt->fscache_uniq);
fsopt->fscache_uniq = NULL;
break;
+#else
+ pr_err("fscache support is disabled\n");
+ return -EINVAL;
+#endif
case Opt_nofscache:
fsopt->flags &= ~CEPH_MOUNT_OPT_FSCACHE;
kfree(fsopt->fscache_uniq);
diff --git a/fs/cifs/smb2pdu.h b/fs/cifs/smb2pdu.h
index ea735d5..0abfde6 100644
--- a/fs/cifs/smb2pdu.h
+++ b/fs/cifs/smb2pdu.h
@@ -838,6 +838,7 @@ struct create_durable_handle_reconnect_v2 {
struct create_context ccontext;
__u8 Name[8];
struct durable_reconnect_context_v2 dcontext;
+ __u8 Pad[4];
} __packed;
/* See MS-SMB2 2.2.13.2.5 */
diff --git a/fs/configfs/symlink.c b/fs/configfs/symlink.c
index dc5dbf6..cb614674 100644
--- a/fs/configfs/symlink.c
+++ b/fs/configfs/symlink.c
@@ -101,7 +101,7 @@ static int create_link(struct config_item *parent_item,
}
target_sd->s_links++;
spin_unlock(&configfs_dirent_lock);
- ret = configfs_get_target_path(item, item, body);
+ ret = configfs_get_target_path(parent_item, item, body);
if (!ret)
ret = configfs_create_link(target_sd, parent_item->ci_dentry,
dentry, body);
diff --git a/fs/ecryptfs/inode.c b/fs/ecryptfs/inode.c
index 18426f4..e23752d 100644
--- a/fs/ecryptfs/inode.c
+++ b/fs/ecryptfs/inode.c
@@ -128,13 +128,20 @@ static int ecryptfs_do_unlink(struct inode *dir, struct dentry *dentry,
struct inode *inode)
{
struct dentry *lower_dentry = ecryptfs_dentry_to_lower(dentry);
- struct inode *lower_dir_inode = ecryptfs_inode_to_lower(dir);
struct dentry *lower_dir_dentry;
+ struct inode *lower_dir_inode;
int rc;
- dget(lower_dentry);
- lower_dir_dentry = lock_parent(lower_dentry);
- rc = vfs_unlink(lower_dir_inode, lower_dentry, NULL);
+ lower_dir_dentry = ecryptfs_dentry_to_lower(dentry->d_parent);
+ lower_dir_inode = d_inode(lower_dir_dentry);
+ inode_lock_nested(lower_dir_inode, I_MUTEX_PARENT);
+ dget(lower_dentry); // don't even try to make the lower negative
+ if (lower_dentry->d_parent != lower_dir_dentry)
+ rc = -EINVAL;
+ else if (d_unhashed(lower_dentry))
+ rc = -EINVAL;
+ else
+ rc = vfs_unlink(lower_dir_inode, lower_dentry, NULL);
if (rc) {
printk(KERN_ERR "Error in vfs_unlink; rc = [%d]\n", rc);
goto out_unlock;
@@ -142,10 +149,11 @@ static int ecryptfs_do_unlink(struct inode *dir, struct dentry *dentry,
fsstack_copy_attr_times(dir, lower_dir_inode);
set_nlink(inode, ecryptfs_inode_to_lower(inode)->i_nlink);
inode->i_ctime = dir->i_ctime;
- d_drop(dentry);
out_unlock:
- unlock_dir(lower_dir_dentry);
dput(lower_dentry);
+ inode_unlock(lower_dir_inode);
+ if (!rc)
+ d_drop(dentry);
return rc;
}
@@ -311,9 +319,9 @@ static int ecryptfs_i_size_read(struct dentry *dentry, struct inode *inode)
static struct dentry *ecryptfs_lookup_interpose(struct dentry *dentry,
struct dentry *lower_dentry)
{
- struct inode *inode, *lower_inode = d_inode(lower_dentry);
+ struct path *path = ecryptfs_dentry_to_lower_path(dentry->d_parent);
+ struct inode *inode, *lower_inode;
struct ecryptfs_dentry_info *dentry_info;
- struct vfsmount *lower_mnt;
int rc = 0;
dentry_info = kmem_cache_alloc(ecryptfs_dentry_info_cache, GFP_KERNEL);
@@ -322,16 +330,23 @@ static struct dentry *ecryptfs_lookup_interpose(struct dentry *dentry,
return ERR_PTR(-ENOMEM);
}
- lower_mnt = mntget(ecryptfs_dentry_to_lower_mnt(dentry->d_parent));
fsstack_copy_attr_atime(d_inode(dentry->d_parent),
- d_inode(lower_dentry->d_parent));
+ d_inode(path->dentry));
BUG_ON(!d_count(lower_dentry));
ecryptfs_set_dentry_private(dentry, dentry_info);
- dentry_info->lower_path.mnt = lower_mnt;
+ dentry_info->lower_path.mnt = mntget(path->mnt);
dentry_info->lower_path.dentry = lower_dentry;
- if (d_really_is_negative(lower_dentry)) {
+ /*
+ * negative dentry can go positive under us here - its parent is not
+ * locked. That's OK and that could happen just as we return from
+ * ecryptfs_lookup() anyway. Just need to be careful and fetch
+ * ->d_inode only once - it's not stable here.
+ */
+ lower_inode = READ_ONCE(lower_dentry->d_inode);
+
+ if (!lower_inode) {
/* We want to add because we couldn't find in lower */
d_add(dentry, NULL);
return NULL;
@@ -512,22 +527,30 @@ static int ecryptfs_rmdir(struct inode *dir, struct dentry *dentry)
{
struct dentry *lower_dentry;
struct dentry *lower_dir_dentry;
+ struct inode *lower_dir_inode;
int rc;
lower_dentry = ecryptfs_dentry_to_lower(dentry);
- dget(dentry);
- lower_dir_dentry = lock_parent(lower_dentry);
- dget(lower_dentry);
- rc = vfs_rmdir(d_inode(lower_dir_dentry), lower_dentry);
- dput(lower_dentry);
- if (!rc && d_really_is_positive(dentry))
+ lower_dir_dentry = ecryptfs_dentry_to_lower(dentry->d_parent);
+ lower_dir_inode = d_inode(lower_dir_dentry);
+
+ inode_lock_nested(lower_dir_inode, I_MUTEX_PARENT);
+ dget(lower_dentry); // don't even try to make the lower negative
+ if (lower_dentry->d_parent != lower_dir_dentry)
+ rc = -EINVAL;
+ else if (d_unhashed(lower_dentry))
+ rc = -EINVAL;
+ else
+ rc = vfs_rmdir(lower_dir_inode, lower_dentry);
+ if (!rc) {
clear_nlink(d_inode(dentry));
- fsstack_copy_attr_times(dir, d_inode(lower_dir_dentry));
- set_nlink(dir, d_inode(lower_dir_dentry)->i_nlink);
- unlock_dir(lower_dir_dentry);
+ fsstack_copy_attr_times(dir, lower_dir_inode);
+ set_nlink(dir, lower_dir_inode->i_nlink);
+ }
+ dput(lower_dentry);
+ inode_unlock(lower_dir_inode);
if (!rc)
d_drop(dentry);
- dput(dentry);
return rc;
}
@@ -565,20 +588,22 @@ ecryptfs_rename(struct inode *old_dir, struct dentry *old_dentry,
struct dentry *lower_new_dentry;
struct dentry *lower_old_dir_dentry;
struct dentry *lower_new_dir_dentry;
- struct dentry *trap = NULL;
+ struct dentry *trap;
struct inode *target_inode;
if (flags)
return -EINVAL;
+ lower_old_dir_dentry = ecryptfs_dentry_to_lower(old_dentry->d_parent);
+ lower_new_dir_dentry = ecryptfs_dentry_to_lower(new_dentry->d_parent);
+
lower_old_dentry = ecryptfs_dentry_to_lower(old_dentry);
lower_new_dentry = ecryptfs_dentry_to_lower(new_dentry);
- dget(lower_old_dentry);
- dget(lower_new_dentry);
- lower_old_dir_dentry = dget_parent(lower_old_dentry);
- lower_new_dir_dentry = dget_parent(lower_new_dentry);
+
target_inode = d_inode(new_dentry);
+
trap = lock_rename(lower_old_dir_dentry, lower_new_dir_dentry);
+ dget(lower_new_dentry);
rc = -EINVAL;
if (lower_old_dentry->d_parent != lower_old_dir_dentry)
goto out_lock;
@@ -606,11 +631,8 @@ ecryptfs_rename(struct inode *old_dir, struct dentry *old_dentry,
if (new_dir != old_dir)
fsstack_copy_attr_all(old_dir, d_inode(lower_old_dir_dentry));
out_lock:
- unlock_rename(lower_old_dir_dentry, lower_new_dir_dentry);
- dput(lower_new_dir_dentry);
- dput(lower_old_dir_dentry);
dput(lower_new_dentry);
- dput(lower_old_dentry);
+ unlock_rename(lower_old_dir_dentry, lower_new_dir_dentry);
return rc;
}
diff --git a/fs/exportfs/expfs.c b/fs/exportfs/expfs.c
index 09bc687..2dd55b1 100644
--- a/fs/exportfs/expfs.c
+++ b/fs/exportfs/expfs.c
@@ -519,26 +519,33 @@ struct dentry *exportfs_decode_fh(struct vfsmount *mnt, struct fid *fid,
* inode is actually connected to the parent.
*/
err = exportfs_get_name(mnt, target_dir, nbuf, result);
- if (!err) {
- inode_lock(target_dir->d_inode);
- nresult = lookup_one_len(nbuf, target_dir,
- strlen(nbuf));
- inode_unlock(target_dir->d_inode);
- if (!IS_ERR(nresult)) {
- if (nresult->d_inode) {
- dput(result);
- result = nresult;
- } else
- dput(nresult);
- }
+ if (err) {
+ dput(target_dir);
+ goto err_result;
}
+ inode_lock(target_dir->d_inode);
+ nresult = lookup_one_len(nbuf, target_dir, strlen(nbuf));
+ if (!IS_ERR(nresult)) {
+ if (unlikely(nresult->d_inode != result->d_inode)) {
+ dput(nresult);
+ nresult = ERR_PTR(-ESTALE);
+ }
+ }
+ inode_unlock(target_dir->d_inode);
/*
* At this point we are done with the parent, but it's pinned
* by the child dentry anyway.
*/
dput(target_dir);
+ if (IS_ERR(nresult)) {
+ err = PTR_ERR(nresult);
+ goto err_result;
+ }
+ dput(result);
+ result = nresult;
+
/*
* And finally make sure the dentry is actually acceptable
* to NFSD.
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index 8461a63..335607b 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -576,10 +576,13 @@ void wbc_attach_and_unlock_inode(struct writeback_control *wbc,
spin_unlock(&inode->i_lock);
/*
- * A dying wb indicates that the memcg-blkcg mapping has changed
- * and a new wb is already serving the memcg. Switch immediately.
+ * A dying wb indicates that either the blkcg associated with the
+ * memcg changed or the associated memcg is dying. In the first
+ * case, a replacement wb should already be available and we should
+ * refresh the wb immediately. In the second case, trying to
+ * refresh will keep failing.
*/
- if (unlikely(wb_dying(wbc->wb)))
+ if (unlikely(wb_dying(wbc->wb) && !css_is_dying(wbc->wb->memcg_css)))
inode_switch_wbs(inode, wbc->wb_id);
}
EXPORT_SYMBOL_GPL(wbc_attach_and_unlock_inode);
diff --git a/fs/io_uring.c b/fs/io_uring.c
index f9a3899..2c819c3 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -326,6 +326,7 @@ struct io_kiocb {
#define REQ_F_TIMEOUT 1024 /* timeout request */
#define REQ_F_ISREG 2048 /* regular file */
#define REQ_F_MUST_PUNT 4096 /* must be punted even for NONBLOCK */
+#define REQ_F_TIMEOUT_NOSEQ 8192 /* no timeout sequence */
u64 user_data;
u32 result;
u32 sequence;
@@ -453,9 +454,13 @@ static struct io_kiocb *io_get_timeout_req(struct io_ring_ctx *ctx)
struct io_kiocb *req;
req = list_first_entry_or_null(&ctx->timeout_list, struct io_kiocb, list);
- if (req && !__io_sequence_defer(ctx, req)) {
- list_del_init(&req->list);
- return req;
+ if (req) {
+ if (req->flags & REQ_F_TIMEOUT_NOSEQ)
+ return NULL;
+ if (!__io_sequence_defer(ctx, req)) {
+ list_del_init(&req->list);
+ return req;
+ }
}
return NULL;
@@ -1225,7 +1230,7 @@ static int io_import_fixed(struct io_ring_ctx *ctx, int rw,
}
}
- return 0;
+ return len;
}
static ssize_t io_import_iovec(struct io_ring_ctx *ctx, int rw,
@@ -1941,18 +1946,24 @@ static int io_timeout(struct io_kiocb *req, const struct io_uring_sqe *sqe)
if (get_timespec64(&ts, u64_to_user_ptr(sqe->addr)))
return -EFAULT;
+ req->flags |= REQ_F_TIMEOUT;
+
/*
* sqe->off holds how many events that need to occur for this
- * timeout event to be satisfied.
+ * timeout event to be satisfied. If it isn't set, then this is
+ * a pure timeout request, sequence isn't used.
*/
count = READ_ONCE(sqe->off);
- if (!count)
- count = 1;
+ if (!count) {
+ req->flags |= REQ_F_TIMEOUT_NOSEQ;
+ spin_lock_irq(&ctx->completion_lock);
+ entry = ctx->timeout_list.prev;
+ goto add;
+ }
req->sequence = ctx->cached_sq_head + count - 1;
/* reuse it to store the count */
req->submit.sequence = count;
- req->flags |= REQ_F_TIMEOUT;
/*
* Insertion sort, ensuring the first entry in the list is always
@@ -1964,6 +1975,9 @@ static int io_timeout(struct io_kiocb *req, const struct io_uring_sqe *sqe)
unsigned nxt_sq_head;
long long tmp, tmp_nxt;
+ if (nxt->flags & REQ_F_TIMEOUT_NOSEQ)
+ continue;
+
/*
* Since cached_sq_head + count - 1 can overflow, use type long
* long to store it.
@@ -1990,6 +2004,7 @@ static int io_timeout(struct io_kiocb *req, const struct io_uring_sqe *sqe)
nxt->sequence++;
}
req->sequence -= span;
+add:
list_add(&req->list, entry);
spin_unlock_irq(&ctx->completion_lock);
@@ -2283,6 +2298,7 @@ static bool io_op_needs_file(const struct io_uring_sqe *sqe)
switch (op) {
case IORING_OP_NOP:
case IORING_OP_POLL_REMOVE:
+ case IORING_OP_TIMEOUT:
return false;
default:
return true;
diff --git a/fs/namespace.c b/fs/namespace.c
index fe0e9e1..2adfe7b 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -2478,8 +2478,10 @@ static void mnt_warn_timestamp_expiry(struct path *mountpoint, struct vfsmount *
time64_to_tm(sb->s_time_max, 0, &tm);
- pr_warn("Mounted %s file system at %s supports timestamps until %04ld (0x%llx)\n",
- sb->s_type->name, mntpath,
+ pr_warn("%s filesystem being %s at %s supports timestamps until %04ld (0x%llx)\n",
+ sb->s_type->name,
+ is_mounted(mnt) ? "remounted" : "mounted",
+ mntpath,
tm.tm_year+1900, (unsigned long long)sb->s_time_max);
free_page((unsigned long)buf);
@@ -2764,14 +2766,11 @@ static int do_new_mount_fc(struct fs_context *fc, struct path *mountpoint,
if (IS_ERR(mnt))
return PTR_ERR(mnt);
- error = do_add_mount(real_mount(mnt), mountpoint, mnt_flags);
- if (error < 0) {
- mntput(mnt);
- return error;
- }
-
mnt_warn_timestamp_expiry(mountpoint, mnt);
+ error = do_add_mount(real_mount(mnt), mountpoint, mnt_flags);
+ if (error < 0)
+ mntput(mnt);
return error;
}
diff --git a/fs/ocfs2/file.c b/fs/ocfs2/file.c
index 53939bf..9876db5 100644
--- a/fs/ocfs2/file.c
+++ b/fs/ocfs2/file.c
@@ -2098,53 +2098,89 @@ static int ocfs2_is_io_unaligned(struct inode *inode, size_t count, loff_t pos)
return 0;
}
-static int ocfs2_prepare_inode_for_refcount(struct inode *inode,
- struct file *file,
- loff_t pos, size_t count,
- int *meta_level)
+static int ocfs2_inode_lock_for_extent_tree(struct inode *inode,
+ struct buffer_head **di_bh,
+ int meta_level,
+ int overwrite_io,
+ int write_sem,
+ int wait)
{
- int ret;
- struct buffer_head *di_bh = NULL;
- u32 cpos = pos >> OCFS2_SB(inode->i_sb)->s_clustersize_bits;
- u32 clusters =
- ocfs2_clusters_for_bytes(inode->i_sb, pos + count) - cpos;
+ int ret = 0;
- ret = ocfs2_inode_lock(inode, &di_bh, 1);
- if (ret) {
- mlog_errno(ret);
+ if (wait)
+ ret = ocfs2_inode_lock(inode, NULL, meta_level);
+ else
+ ret = ocfs2_try_inode_lock(inode,
+ overwrite_io ? NULL : di_bh, meta_level);
+ if (ret < 0)
goto out;
+
+ if (wait) {
+ if (write_sem)
+ down_write(&OCFS2_I(inode)->ip_alloc_sem);
+ else
+ down_read(&OCFS2_I(inode)->ip_alloc_sem);
+ } else {
+ if (write_sem)
+ ret = down_write_trylock(&OCFS2_I(inode)->ip_alloc_sem);
+ else
+ ret = down_read_trylock(&OCFS2_I(inode)->ip_alloc_sem);
+
+ if (!ret) {
+ ret = -EAGAIN;
+ goto out_unlock;
+ }
}
- *meta_level = 1;
-
- ret = ocfs2_refcount_cow(inode, di_bh, cpos, clusters, UINT_MAX);
- if (ret)
- mlog_errno(ret);
-out:
- brelse(di_bh);
return ret;
+
+out_unlock:
+ brelse(*di_bh);
+ ocfs2_inode_unlock(inode, meta_level);
+out:
+ return ret;
+}
+
+static void ocfs2_inode_unlock_for_extent_tree(struct inode *inode,
+ struct buffer_head **di_bh,
+ int meta_level,
+ int write_sem)
+{
+ if (write_sem)
+ up_write(&OCFS2_I(inode)->ip_alloc_sem);
+ else
+ up_read(&OCFS2_I(inode)->ip_alloc_sem);
+
+ brelse(*di_bh);
+ *di_bh = NULL;
+
+ if (meta_level >= 0)
+ ocfs2_inode_unlock(inode, meta_level);
}
static int ocfs2_prepare_inode_for_write(struct file *file,
loff_t pos, size_t count, int wait)
{
int ret = 0, meta_level = 0, overwrite_io = 0;
+ int write_sem = 0;
struct dentry *dentry = file->f_path.dentry;
struct inode *inode = d_inode(dentry);
struct buffer_head *di_bh = NULL;
+ u32 cpos;
+ u32 clusters;
/*
* We start with a read level meta lock and only jump to an ex
* if we need to make modifications here.
*/
for(;;) {
- if (wait)
- ret = ocfs2_inode_lock(inode, NULL, meta_level);
- else
- ret = ocfs2_try_inode_lock(inode,
- overwrite_io ? NULL : &di_bh, meta_level);
+ ret = ocfs2_inode_lock_for_extent_tree(inode,
+ &di_bh,
+ meta_level,
+ overwrite_io,
+ write_sem,
+ wait);
if (ret < 0) {
- meta_level = -1;
if (ret != -EAGAIN)
mlog_errno(ret);
goto out;
@@ -2156,15 +2192,8 @@ static int ocfs2_prepare_inode_for_write(struct file *file,
*/
if (!wait && !overwrite_io) {
overwrite_io = 1;
- if (!down_read_trylock(&OCFS2_I(inode)->ip_alloc_sem)) {
- ret = -EAGAIN;
- goto out_unlock;
- }
ret = ocfs2_overwrite_io(inode, di_bh, pos, count);
- brelse(di_bh);
- di_bh = NULL;
- up_read(&OCFS2_I(inode)->ip_alloc_sem);
if (ret < 0) {
if (ret != -EAGAIN)
mlog_errno(ret);
@@ -2183,7 +2212,10 @@ static int ocfs2_prepare_inode_for_write(struct file *file,
* set inode->i_size at the end of a write. */
if (should_remove_suid(dentry)) {
if (meta_level == 0) {
- ocfs2_inode_unlock(inode, meta_level);
+ ocfs2_inode_unlock_for_extent_tree(inode,
+ &di_bh,
+ meta_level,
+ write_sem);
meta_level = 1;
continue;
}
@@ -2197,18 +2229,32 @@ static int ocfs2_prepare_inode_for_write(struct file *file,
ret = ocfs2_check_range_for_refcount(inode, pos, count);
if (ret == 1) {
- ocfs2_inode_unlock(inode, meta_level);
- meta_level = -1;
+ ocfs2_inode_unlock_for_extent_tree(inode,
+ &di_bh,
+ meta_level,
+ write_sem);
+ ret = ocfs2_inode_lock_for_extent_tree(inode,
+ &di_bh,
+ meta_level,
+ overwrite_io,
+ 1,
+ wait);
+ write_sem = 1;
+ if (ret < 0) {
+ if (ret != -EAGAIN)
+ mlog_errno(ret);
+ goto out;
+ }
- ret = ocfs2_prepare_inode_for_refcount(inode,
- file,
- pos,
- count,
- &meta_level);
+ cpos = pos >> OCFS2_SB(inode->i_sb)->s_clustersize_bits;
+ clusters =
+ ocfs2_clusters_for_bytes(inode->i_sb, pos + count) - cpos;
+ ret = ocfs2_refcount_cow(inode, di_bh, cpos, clusters, UINT_MAX);
}
if (ret < 0) {
- mlog_errno(ret);
+ if (ret != -EAGAIN)
+ mlog_errno(ret);
goto out_unlock;
}
@@ -2219,10 +2265,10 @@ static int ocfs2_prepare_inode_for_write(struct file *file,
trace_ocfs2_prepare_inode_for_write(OCFS2_I(inode)->ip_blkno,
pos, count, wait);
- brelse(di_bh);
-
- if (meta_level >= 0)
- ocfs2_inode_unlock(inode, meta_level);
+ ocfs2_inode_unlock_for_extent_tree(inode,
+ &di_bh,
+ meta_level,
+ write_sem);
out:
return ret;
diff --git a/include/asm-generic/vdso/vsyscall.h b/include/asm-generic/vdso/vsyscall.h
index e94b1978..ce41032 100644
--- a/include/asm-generic/vdso/vsyscall.h
+++ b/include/asm-generic/vdso/vsyscall.h
@@ -25,13 +25,6 @@ static __always_inline int __arch_get_clock_mode(struct timekeeper *tk)
}
#endif /* __arch_get_clock_mode */
-#ifndef __arch_use_vsyscall
-static __always_inline int __arch_use_vsyscall(struct vdso_data *vdata)
-{
- return 1;
-}
-#endif /* __arch_use_vsyscall */
-
#ifndef __arch_update_vsyscall
static __always_inline void __arch_update_vsyscall(struct vdso_data *vdata,
struct timekeeper *tk)
diff --git a/include/drm/drm_gem_shmem_helper.h b/include/drm/drm_gem_shmem_helper.h
index 01f5145..7865e6b 100644
--- a/include/drm/drm_gem_shmem_helper.h
+++ b/include/drm/drm_gem_shmem_helper.h
@@ -44,7 +44,20 @@ struct drm_gem_shmem_object {
*/
unsigned int pages_use_count;
+ /**
+ * @madv: State for madvise
+ *
+ * 0 is active/inuse.
+ * A negative value is the object is purged.
+ * Positive values are driver specific and not used by the helpers.
+ */
int madv;
+
+ /**
+ * @madv_list: List entry for madvise tracking
+ *
+ * Typically used by drivers to track purgeable objects
+ */
struct list_head madv_list;
/**
diff --git a/include/drm/drm_self_refresh_helper.h b/include/drm/drm_self_refresh_helper.h
index 5b79d25..520235c 100644
--- a/include/drm/drm_self_refresh_helper.h
+++ b/include/drm/drm_self_refresh_helper.h
@@ -13,7 +13,8 @@ struct drm_crtc;
void drm_self_refresh_helper_alter_state(struct drm_atomic_state *state);
void drm_self_refresh_helper_update_avg_times(struct drm_atomic_state *state,
- unsigned int commit_time_ms);
+ unsigned int commit_time_ms,
+ unsigned int new_self_refresh_mask);
int drm_self_refresh_helper_init(struct drm_crtc *crtc);
void drm_self_refresh_helper_cleanup(struct drm_crtc *crtc);
diff --git a/include/linux/bpf.h b/include/linux/bpf.h
index 5b9d223..3bf3835 100644
--- a/include/linux/bpf.h
+++ b/include/linux/bpf.h
@@ -656,11 +656,11 @@ void bpf_map_put_with_uref(struct bpf_map *map);
void bpf_map_put(struct bpf_map *map);
int bpf_map_charge_memlock(struct bpf_map *map, u32 pages);
void bpf_map_uncharge_memlock(struct bpf_map *map, u32 pages);
-int bpf_map_charge_init(struct bpf_map_memory *mem, size_t size);
+int bpf_map_charge_init(struct bpf_map_memory *mem, u64 size);
void bpf_map_charge_finish(struct bpf_map_memory *mem);
void bpf_map_charge_move(struct bpf_map_memory *dst,
struct bpf_map_memory *src);
-void *bpf_map_area_alloc(size_t size, int numa_node);
+void *bpf_map_area_alloc(u64 size, int numa_node);
void bpf_map_area_free(void *base);
void bpf_map_init_from_attr(struct bpf_map *map, union bpf_attr *attr);
diff --git a/include/linux/can/core.h b/include/linux/can/core.h
index 8339071..e20a0cd 100644
--- a/include/linux/can/core.h
+++ b/include/linux/can/core.h
@@ -65,5 +65,6 @@ extern void can_rx_unregister(struct net *net, struct net_device *dev,
void *data);
extern int can_send(struct sk_buff *skb, int loop);
+void can_sock_destruct(struct sock *sk);
#endif /* !_CAN_CORE_H */
diff --git a/include/linux/cpu.h b/include/linux/cpu.h
index d0633eb..1ca2baf 100644
--- a/include/linux/cpu.h
+++ b/include/linux/cpu.h
@@ -59,6 +59,11 @@ extern ssize_t cpu_show_l1tf(struct device *dev,
struct device_attribute *attr, char *buf);
extern ssize_t cpu_show_mds(struct device *dev,
struct device_attribute *attr, char *buf);
+extern ssize_t cpu_show_tsx_async_abort(struct device *dev,
+ struct device_attribute *attr,
+ char *buf);
+extern ssize_t cpu_show_itlb_multihit(struct device *dev,
+ struct device_attribute *attr, char *buf);
extern __printf(4, 5)
struct device *cpu_device_create(struct device *parent, void *drvdata,
@@ -179,7 +184,12 @@ void arch_cpu_idle_dead(void);
int cpu_report_state(int cpu);
int cpu_check_up_prepare(int cpu);
void cpu_set_state_online(int cpu);
-void play_idle(unsigned long duration_us);
+void play_idle_precise(u64 duration_ns, u64 latency_ns);
+
+static inline void play_idle(unsigned long duration_us)
+{
+ play_idle_precise(duration_us * NSEC_PER_USEC, U64_MAX);
+}
#ifdef CONFIG_HOTPLUG_CPU
bool cpu_wait_death(unsigned int cpu, int seconds);
@@ -213,28 +223,7 @@ static inline int cpuhp_smt_enable(void) { return 0; }
static inline int cpuhp_smt_disable(enum cpuhp_smt_control ctrlval) { return 0; }
#endif
-/*
- * These are used for a global "mitigations=" cmdline option for toggling
- * optional CPU mitigations.
- */
-enum cpu_mitigations {
- CPU_MITIGATIONS_OFF,
- CPU_MITIGATIONS_AUTO,
- CPU_MITIGATIONS_AUTO_NOSMT,
-};
-
-extern enum cpu_mitigations cpu_mitigations;
-
-/* mitigations=off */
-static inline bool cpu_mitigations_off(void)
-{
- return cpu_mitigations == CPU_MITIGATIONS_OFF;
-}
-
-/* mitigations=auto,nosmt */
-static inline bool cpu_mitigations_auto_nosmt(void)
-{
- return cpu_mitigations == CPU_MITIGATIONS_AUTO_NOSMT;
-}
+extern bool cpu_mitigations_off(void);
+extern bool cpu_mitigations_auto_nosmt(void);
#endif /* _LINUX_CPU_H_ */
diff --git a/include/linux/cpuidle.h b/include/linux/cpuidle.h
index 4b6b5be..2dbe46b 100644
--- a/include/linux/cpuidle.h
+++ b/include/linux/cpuidle.h
@@ -29,10 +29,13 @@ struct cpuidle_driver;
* CPUIDLE DEVICE INTERFACE *
****************************/
+#define CPUIDLE_STATE_DISABLED_BY_USER BIT(0)
+#define CPUIDLE_STATE_DISABLED_BY_DRIVER BIT(1)
+
struct cpuidle_state_usage {
unsigned long long disable;
unsigned long long usage;
- unsigned long long time; /* in US */
+ u64 time_ns;
unsigned long long above; /* Number of times it's been too deep */
unsigned long long below; /* Number of times it's been too shallow */
#ifdef CONFIG_SUSPEND
@@ -45,6 +48,8 @@ struct cpuidle_state {
char name[CPUIDLE_NAME_LEN];
char desc[CPUIDLE_DESC_LEN];
+ u64 exit_latency_ns;
+ u64 target_residency_ns;
unsigned int flags;
unsigned int exit_latency; /* in US */
int power_usage; /* in mW */
@@ -80,14 +85,14 @@ struct cpuidle_driver_kobj;
struct cpuidle_device {
unsigned int registered:1;
unsigned int enabled:1;
- unsigned int use_deepest_state:1;
unsigned int poll_time_limit:1;
unsigned int cpu;
ktime_t next_hrtimer;
int last_state_idx;
- int last_residency;
+ u64 last_residency_ns;
u64 poll_limit_ns;
+ u64 forced_idle_latency_limit_ns;
struct cpuidle_state_usage states_usage[CPUIDLE_STATE_MAX];
struct cpuidle_state_kobj *kobjs[CPUIDLE_STATE_MAX];
struct cpuidle_driver_kobj *kobj_driver;
@@ -144,6 +149,8 @@ extern int cpuidle_register_driver(struct cpuidle_driver *drv);
extern struct cpuidle_driver *cpuidle_get_driver(void);
extern struct cpuidle_driver *cpuidle_driver_ref(void);
extern void cpuidle_driver_unref(void);
+extern void cpuidle_driver_state_disabled(struct cpuidle_driver *drv, int idx,
+ bool disable);
extern void cpuidle_unregister_driver(struct cpuidle_driver *drv);
extern int cpuidle_register_device(struct cpuidle_device *dev);
extern void cpuidle_unregister_device(struct cpuidle_device *dev);
@@ -181,6 +188,8 @@ static inline int cpuidle_register_driver(struct cpuidle_driver *drv)
static inline struct cpuidle_driver *cpuidle_get_driver(void) {return NULL; }
static inline struct cpuidle_driver *cpuidle_driver_ref(void) {return NULL; }
static inline void cpuidle_driver_unref(void) {}
+static inline void cpuidle_driver_state_disabled(struct cpuidle_driver *drv,
+ int idx, bool disable) { }
static inline void cpuidle_unregister_driver(struct cpuidle_driver *drv) { }
static inline int cpuidle_register_device(struct cpuidle_device *dev)
{return -ENODEV; }
@@ -204,18 +213,20 @@ static inline struct cpuidle_device *cpuidle_get_device(void) {return NULL; }
#ifdef CONFIG_CPU_IDLE
extern int cpuidle_find_deepest_state(struct cpuidle_driver *drv,
- struct cpuidle_device *dev);
+ struct cpuidle_device *dev,
+ u64 latency_limit_ns);
extern int cpuidle_enter_s2idle(struct cpuidle_driver *drv,
struct cpuidle_device *dev);
-extern void cpuidle_use_deepest_state(bool enable);
+extern void cpuidle_use_deepest_state(u64 latency_limit_ns);
#else
static inline int cpuidle_find_deepest_state(struct cpuidle_driver *drv,
- struct cpuidle_device *dev)
+ struct cpuidle_device *dev,
+ u64 latency_limit_ns)
{return -ENODEV; }
static inline int cpuidle_enter_s2idle(struct cpuidle_driver *drv,
struct cpuidle_device *dev)
{return -ENODEV; }
-static inline void cpuidle_use_deepest_state(bool enable)
+static inline void cpuidle_use_deepest_state(u64 latency_limit_ns)
{
}
#endif
@@ -260,7 +271,7 @@ struct cpuidle_governor {
#ifdef CONFIG_CPU_IDLE
extern int cpuidle_register_governor(struct cpuidle_governor *gov);
-extern int cpuidle_governor_latency_req(unsigned int cpu);
+extern s64 cpuidle_governor_latency_req(unsigned int cpu);
#else
static inline int cpuidle_register_governor(struct cpuidle_governor *gov)
{return 0;}
diff --git a/include/linux/idr.h b/include/linux/idr.h
index 4ec8986..ac6e946 100644
--- a/include/linux/idr.h
+++ b/include/linux/idr.h
@@ -185,7 +185,7 @@ static inline void idr_preload_end(void)
* is convenient for a "not found" value.
*/
#define idr_for_each_entry(idr, entry, id) \
- for (id = 0; ((entry) = idr_get_next(idr, &(id))) != NULL; ++id)
+ for (id = 0; ((entry) = idr_get_next(idr, &(id))) != NULL; id += 1U)
/**
* idr_for_each_entry_ul() - Iterate over an IDR's elements of a given type.
diff --git a/include/linux/intel-iommu.h b/include/linux/intel-iommu.h
index ed11ef5..6d8bf4b 100644
--- a/include/linux/intel-iommu.h
+++ b/include/linux/intel-iommu.h
@@ -336,7 +336,8 @@ enum {
#define QI_DEV_IOTLB_SID(sid) ((u64)((sid) & 0xffff) << 32)
#define QI_DEV_IOTLB_QDEP(qdep) (((qdep) & 0x1f) << 16)
#define QI_DEV_IOTLB_ADDR(addr) ((u64)(addr) & VTD_PAGE_MASK)
-#define QI_DEV_IOTLB_PFSID(pfsid) (((u64)(pfsid & 0xf) << 12) | ((u64)(pfsid & 0xfff) << 52))
+#define QI_DEV_IOTLB_PFSID(pfsid) (((u64)(pfsid & 0xf) << 12) | \
+ ((u64)((pfsid >> 4) & 0xfff) << 52))
#define QI_DEV_IOTLB_SIZE 1
#define QI_DEV_IOTLB_MAX_INVS 32
@@ -360,7 +361,8 @@ enum {
#define QI_DEV_EIOTLB_PASID(p) (((u64)p) << 32)
#define QI_DEV_EIOTLB_SID(sid) ((u64)((sid) & 0xffff) << 16)
#define QI_DEV_EIOTLB_QDEP(qd) ((u64)((qd) & 0x1f) << 4)
-#define QI_DEV_EIOTLB_PFSID(pfsid) (((u64)(pfsid & 0xf) << 12) | ((u64)(pfsid & 0xfff) << 52))
+#define QI_DEV_EIOTLB_PFSID(pfsid) (((u64)(pfsid & 0xf) << 12) | \
+ ((u64)((pfsid >> 4) & 0xfff) << 52))
#define QI_DEV_EIOTLB_MAX_INVS 32
/* Page group response descriptor QW0 */
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 719fc3e..d41c521 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -966,6 +966,7 @@ int kvm_cpu_has_pending_timer(struct kvm_vcpu *vcpu);
void kvm_vcpu_kick(struct kvm_vcpu *vcpu);
bool kvm_is_reserved_pfn(kvm_pfn_t pfn);
+bool kvm_is_zone_device_pfn(kvm_pfn_t pfn);
struct kvm_irq_ack_notifier {
struct hlist_node link;
@@ -1382,4 +1383,10 @@ static inline int kvm_arch_vcpu_run_pid_change(struct kvm_vcpu *vcpu)
}
#endif /* CONFIG_HAVE_KVM_VCPU_RUN_PID_CHANGE */
+typedef int (*kvm_vm_thread_fn_t)(struct kvm *kvm, uintptr_t data);
+
+int kvm_vm_create_worker_thread(struct kvm *kvm, kvm_vm_thread_fn_t thread_fn,
+ uintptr_t data, const char *name,
+ struct task_struct **thread_ptr);
+
#endif
diff --git a/include/linux/memory.h b/include/linux/memory.h
index 0ebb105..4c75dae 100644
--- a/include/linux/memory.h
+++ b/include/linux/memory.h
@@ -119,6 +119,7 @@ extern struct memory_block *find_memory_block(struct mem_section *);
typedef int (*walk_memory_blocks_func_t)(struct memory_block *, void *);
extern int walk_memory_blocks(unsigned long start, unsigned long size,
void *arg, walk_memory_blocks_func_t func);
+extern int for_each_memory_block(void *arg, walk_memory_blocks_func_t func);
#define CONFIG_MEM_BLOCK_SIZE (PAGES_PER_SECTION<<PAGE_SHIFT)
#endif /* CONFIG_MEMORY_HOTPLUG_SPARSE */
diff --git a/include/linux/mm.h b/include/linux/mm.h
index cc29227..a2adf95 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -695,11 +695,6 @@ static inline void *kvcalloc(size_t n, size_t size, gfp_t flags)
extern void kvfree(const void *addr);
-static inline atomic_t *compound_mapcount_ptr(struct page *page)
-{
- return &page[1].compound_mapcount;
-}
-
static inline int compound_mapcount(struct page *page)
{
VM_BUG_ON_PAGE(!PageCompound(page), page);
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index 2222fa7..270aa8f 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -221,6 +221,11 @@ struct page {
#endif
} _struct_page_alignment;
+static inline atomic_t *compound_mapcount_ptr(struct page *page)
+{
+ return &page[1].compound_mapcount;
+}
+
/*
* Used for sizing the vmemmap region on some architectures
*/
diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h
index f91cb88..1bf83c8 100644
--- a/include/linux/page-flags.h
+++ b/include/linux/page-flags.h
@@ -622,12 +622,28 @@ static inline int PageTransCompound(struct page *page)
*
* Unlike PageTransCompound, this is safe to be called only while
* split_huge_pmd() cannot run from under us, like if protected by the
- * MMU notifier, otherwise it may result in page->_mapcount < 0 false
+ * MMU notifier, otherwise it may result in page->_mapcount check false
* positives.
+ *
+ * We have to treat page cache THP differently since every subpage of it
+ * would get _mapcount inc'ed once it is PMD mapped. But, it may be PTE
+ * mapped in the current process so comparing subpage's _mapcount to
+ * compound_mapcount to filter out PTE mapped case.
*/
static inline int PageTransCompoundMap(struct page *page)
{
- return PageTransCompound(page) && atomic_read(&page->_mapcount) < 0;
+ struct page *head;
+
+ if (!PageTransCompound(page))
+ return 0;
+
+ if (PageAnon(page))
+ return atomic_read(&page->_mapcount) < 0;
+
+ head = compound_head(page);
+ /* File THP is PMD mapped and not PTE mapped */
+ return atomic_read(&page->_mapcount) ==
+ atomic_read(compound_mapcount_ptr(head));
}
/*
diff --git a/include/linux/radix-tree.h b/include/linux/radix-tree.h
index b511601..63e6237 100644
--- a/include/linux/radix-tree.h
+++ b/include/linux/radix-tree.h
@@ -316,24 +316,6 @@ radix_tree_iter_lookup(const struct radix_tree_root *root,
}
/**
- * radix_tree_iter_find - find a present entry
- * @root: radix tree root
- * @iter: iterator state
- * @index: start location
- *
- * This function returns the slot containing the entry with the lowest index
- * which is at least @index. If @index is larger than any present entry, this
- * function returns NULL. The @iter is updated to describe the entry found.
- */
-static inline void __rcu **
-radix_tree_iter_find(const struct radix_tree_root *root,
- struct radix_tree_iter *iter, unsigned long index)
-{
- radix_tree_iter_init(iter, index);
- return radix_tree_next_chunk(root, iter, 0);
-}
-
-/**
* radix_tree_iter_retry - retry this chunk of the iteration
* @iter: iterator state
*
diff --git a/include/linux/reset-controller.h b/include/linux/reset-controller.h
index 9326d67..eaae6b4 100644
--- a/include/linux/reset-controller.h
+++ b/include/linux/reset-controller.h
@@ -7,7 +7,7 @@
struct reset_controller_dev;
/**
- * struct reset_control_ops
+ * struct reset_control_ops - reset controller driver callbacks
*
* @reset: for self-deasserting resets, does all necessary
* things to reset the device
@@ -33,7 +33,7 @@ struct of_phandle_args;
* @provider: name of the reset controller device controlling this reset line
* @index: ID of the reset controller in the reset controller device
* @dev_id: name of the device associated with this reset line
- * @con_id name of the reset line (can be NULL)
+ * @con_id: name of the reset line (can be NULL)
*/
struct reset_control_lookup {
struct list_head list;
diff --git a/include/linux/reset.h b/include/linux/reset.h
index e7793fc..eb597e8 100644
--- a/include/linux/reset.h
+++ b/include/linux/reset.h
@@ -143,7 +143,7 @@ static inline int device_reset_optional(struct device *dev)
* If this function is called more than once for the same reset_control it will
* return -EBUSY.
*
- * See reset_control_get_shared for details on shared references to
+ * See reset_control_get_shared() for details on shared references to
* reset-controls.
*
* Use of id names is optional.
diff --git a/include/linux/skmsg.h b/include/linux/skmsg.h
index e4b3fb4b..ce70552 100644
--- a/include/linux/skmsg.h
+++ b/include/linux/skmsg.h
@@ -139,6 +139,11 @@ static inline void sk_msg_apply_bytes(struct sk_psock *psock, u32 bytes)
}
}
+static inline u32 sk_msg_iter_dist(u32 start, u32 end)
+{
+ return end >= start ? end - start : end + (MAX_MSG_FRAGS - start);
+}
+
#define sk_msg_iter_var_prev(var) \
do { \
if (var == 0) \
@@ -198,9 +203,7 @@ static inline u32 sk_msg_elem_used(const struct sk_msg *msg)
if (sk_msg_full(msg))
return MAX_MSG_FRAGS;
- return msg->sg.end >= msg->sg.start ?
- msg->sg.end - msg->sg.start :
- msg->sg.end + (MAX_MSG_FRAGS - msg->sg.start);
+ return sk_msg_iter_dist(msg->sg.start, msg->sg.end);
}
static inline struct scatterlist *sk_msg_elem(struct sk_msg *msg, int which)
diff --git a/include/net/bonding.h b/include/net/bonding.h
index 1afc125..3d56b02 100644
--- a/include/net/bonding.h
+++ b/include/net/bonding.h
@@ -159,7 +159,6 @@ struct slave {
unsigned long target_last_arp_rx[BOND_MAX_ARP_TARGETS];
s8 link; /* one of BOND_LINK_XXXX */
s8 link_new_state; /* one of BOND_LINK_XXXX */
- s8 new_link;
u8 backup:1, /* indicates backup slave. Value corresponds with
BOND_STATE_ACTIVE and BOND_STATE_BACKUP */
inactive:1, /* indicates inactive slave */
@@ -549,7 +548,7 @@ static inline void bond_propose_link_state(struct slave *slave, int state)
static inline void bond_commit_link_state(struct slave *slave, bool notify)
{
- if (slave->link == slave->link_new_state)
+ if (slave->link_new_state == BOND_LINK_NOCHANGE)
return;
slave->link = slave->link_new_state;
diff --git a/include/net/devlink.h b/include/net/devlink.h
index 23e4b65..2116c88 100644
--- a/include/net/devlink.h
+++ b/include/net/devlink.h
@@ -38,7 +38,8 @@ struct devlink {
struct device *dev;
possible_net_t _net;
struct mutex lock;
- bool reload_failed;
+ u8 reload_failed:1,
+ reload_enabled:1;
char priv[0] __aligned(NETDEV_ALIGN);
};
@@ -774,6 +775,8 @@ struct ib_device;
struct devlink *devlink_alloc(const struct devlink_ops *ops, size_t priv_size);
int devlink_register(struct devlink *devlink, struct device *dev);
void devlink_unregister(struct devlink *devlink);
+void devlink_reload_enable(struct devlink *devlink);
+void devlink_reload_disable(struct devlink *devlink);
void devlink_free(struct devlink *devlink);
int devlink_port_register(struct devlink *devlink,
struct devlink_port *devlink_port,
diff --git a/include/net/fq_impl.h b/include/net/fq_impl.h
index 107c0d7..38a9a3d 100644
--- a/include/net/fq_impl.h
+++ b/include/net/fq_impl.h
@@ -313,7 +313,7 @@ static int fq_init(struct fq *fq, int flows_cnt)
fq->limit = 8192;
fq->memory_limit = 16 << 20; /* 16 MBytes */
- fq->flows = kcalloc(fq->flows_cnt, sizeof(fq->flows[0]), GFP_KERNEL);
+ fq->flows = kvcalloc(fq->flows_cnt, sizeof(fq->flows[0]), GFP_KERNEL);
if (!fq->flows)
return -ENOMEM;
@@ -331,7 +331,7 @@ static void fq_reset(struct fq *fq,
for (i = 0; i < fq->flows_cnt; i++)
fq_flow_reset(fq, &fq->flows[i], free_func);
- kfree(fq->flows);
+ kvfree(fq->flows);
fq->flows = NULL;
}
diff --git a/include/net/neighbour.h b/include/net/neighbour.h
index 50a67bd..b8452cc 100644
--- a/include/net/neighbour.h
+++ b/include/net/neighbour.h
@@ -439,8 +439,8 @@ static inline int neigh_event_send(struct neighbour *neigh, struct sk_buff *skb)
{
unsigned long now = jiffies;
- if (neigh->used != now)
- neigh->used = now;
+ if (READ_ONCE(neigh->used) != now)
+ WRITE_ONCE(neigh->used, now);
if (!(neigh->nud_state&(NUD_CONNECTED|NUD_DELAY|NUD_PROBE)))
return __neigh_event_send(neigh, skb);
return 0;
diff --git a/include/net/netfilter/nf_tables.h b/include/net/netfilter/nf_tables.h
index 001d294..2d0275f 100644
--- a/include/net/netfilter/nf_tables.h
+++ b/include/net/netfilter/nf_tables.h
@@ -820,7 +820,8 @@ struct nft_expr_ops {
*/
struct nft_expr {
const struct nft_expr_ops *ops;
- unsigned char data[];
+ unsigned char data[]
+ __attribute__((aligned(__alignof__(u64))));
};
static inline void *nft_expr_priv(const struct nft_expr *expr)
diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h
index 637548d..d80acda 100644
--- a/include/net/sch_generic.h
+++ b/include/net/sch_generic.h
@@ -15,6 +15,7 @@
#include <linux/mutex.h>
#include <linux/rwsem.h>
#include <linux/atomic.h>
+#include <linux/hashtable.h>
#include <net/gen_stats.h>
#include <net/rtnetlink.h>
#include <net/flow_offload.h>
@@ -362,6 +363,7 @@ struct tcf_proto {
bool deleting;
refcount_t refcnt;
struct rcu_head rcu;
+ struct hlist_node destroy_ht_node;
};
struct qdisc_skb_cb {
@@ -414,6 +416,8 @@ struct tcf_block {
struct list_head filter_chain_list;
} chain0;
struct rcu_head rcu;
+ DECLARE_HASHTABLE(proto_destroy_ht, 7);
+ struct mutex proto_destroy_lock; /* Lock for proto_destroy hashtable. */
};
#ifdef CONFIG_PROVE_LOCKING
diff --git a/include/net/sock.h b/include/net/sock.h
index 8f9adcf..718e62f 100644
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -2342,7 +2342,7 @@ static inline ktime_t sock_read_timestamp(struct sock *sk)
return kt;
#else
- return sk->sk_stamp;
+ return READ_ONCE(sk->sk_stamp);
#endif
}
@@ -2353,7 +2353,7 @@ static inline void sock_write_timestamp(struct sock *sk, ktime_t kt)
sk->sk_stamp = kt;
write_sequnlock(&sk->sk_stamp_seq);
#else
- sk->sk_stamp = kt;
+ WRITE_ONCE(sk->sk_stamp, kt);
#endif
}
diff --git a/include/net/tls.h b/include/net/tls.h
index c664e6d..794e297 100644
--- a/include/net/tls.h
+++ b/include/net/tls.h
@@ -40,6 +40,7 @@
#include <linux/socket.h>
#include <linux/tcp.h>
#include <linux/skmsg.h>
+#include <linux/mutex.h>
#include <linux/netdevice.h>
#include <linux/rcupdate.h>
@@ -269,6 +270,10 @@ struct tls_context {
bool in_tcp_sendpages;
bool pending_open_record_frags;
+
+ struct mutex tx_lock; /* protects partially_sent_* fields and
+ * per-type TX fields
+ */
unsigned long flags;
/* cache cold stuff */
diff --git a/include/trace/events/tcp.h b/include/trace/events/tcp.h
index 2bc9960..cf97f63 100644
--- a/include/trace/events/tcp.h
+++ b/include/trace/events/tcp.h
@@ -86,7 +86,7 @@ DECLARE_EVENT_CLASS(tcp_event_sk_skb,
sk->sk_v6_rcv_saddr, sk->sk_v6_daddr);
),
- TP_printk("sport=%hu dport=%hu saddr=%pI4 daddr=%pI4 saddrv6=%pI6c daddrv6=%pI6c state=%s\n",
+ TP_printk("sport=%hu dport=%hu saddr=%pI4 daddr=%pI4 saddrv6=%pI6c daddrv6=%pI6c state=%s",
__entry->sport, __entry->dport, __entry->saddr, __entry->daddr,
__entry->saddr_v6, __entry->daddr_v6,
show_tcp_state_name(__entry->state))
diff --git a/include/uapi/linux/can.h b/include/uapi/linux/can.h
index 1e988fd..6a6d2c7 100644
--- a/include/uapi/linux/can.h
+++ b/include/uapi/linux/can.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */
+/* SPDX-License-Identifier: ((GPL-2.0-only WITH Linux-syscall-note) OR BSD-3-Clause) */
/*
* linux/can.h
*
diff --git a/include/uapi/linux/can/bcm.h b/include/uapi/linux/can/bcm.h
index 0fb328d..dd2b925 100644
--- a/include/uapi/linux/can/bcm.h
+++ b/include/uapi/linux/can/bcm.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */
+/* SPDX-License-Identifier: ((GPL-2.0-only WITH Linux-syscall-note) OR BSD-3-Clause) */
/*
* linux/can/bcm.h
*
diff --git a/include/uapi/linux/can/error.h b/include/uapi/linux/can/error.h
index bfc4b5d..3463328 100644
--- a/include/uapi/linux/can/error.h
+++ b/include/uapi/linux/can/error.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */
+/* SPDX-License-Identifier: ((GPL-2.0-only WITH Linux-syscall-note) OR BSD-3-Clause) */
/*
* linux/can/error.h
*
diff --git a/include/uapi/linux/can/gw.h b/include/uapi/linux/can/gw.h
index 3aea538..c2190bb 100644
--- a/include/uapi/linux/can/gw.h
+++ b/include/uapi/linux/can/gw.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */
+/* SPDX-License-Identifier: ((GPL-2.0-only WITH Linux-syscall-note) OR BSD-3-Clause) */
/*
* linux/can/gw.h
*
diff --git a/include/uapi/linux/can/j1939.h b/include/uapi/linux/can/j1939.h
index c323253..df6e821 100644
--- a/include/uapi/linux/can/j1939.h
+++ b/include/uapi/linux/can/j1939.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+/* SPDX-License-Identifier: GPL-2.0-only WITH Linux-syscall-note */
/*
* j1939.h
*
diff --git a/include/uapi/linux/can/netlink.h b/include/uapi/linux/can/netlink.h
index 1bc70d3..6f598b7 100644
--- a/include/uapi/linux/can/netlink.h
+++ b/include/uapi/linux/can/netlink.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+/* SPDX-License-Identifier: GPL-2.0-only WITH Linux-syscall-note */
/*
* linux/can/netlink.h
*
diff --git a/include/uapi/linux/can/raw.h b/include/uapi/linux/can/raw.h
index be3b36e..6a11d30 100644
--- a/include/uapi/linux/can/raw.h
+++ b/include/uapi/linux/can/raw.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) */
+/* SPDX-License-Identifier: ((GPL-2.0-only WITH Linux-syscall-note) OR BSD-3-Clause) */
/*
* linux/can/raw.h
*
diff --git a/include/uapi/linux/can/vxcan.h b/include/uapi/linux/can/vxcan.h
index 066812d..4fa9d87 100644
--- a/include/uapi/linux/can/vxcan.h
+++ b/include/uapi/linux/can/vxcan.h
@@ -1,4 +1,4 @@
-/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+/* SPDX-License-Identifier: GPL-2.0-only WITH Linux-syscall-note */
#ifndef _UAPI_CAN_VXCAN_H
#define _UAPI_CAN_VXCAN_H
diff --git a/include/uapi/linux/devlink.h b/include/uapi/linux/devlink.h
index 580b7a2..a8a2174 100644
--- a/include/uapi/linux/devlink.h
+++ b/include/uapi/linux/devlink.h
@@ -421,6 +421,7 @@ enum devlink_attr {
DEVLINK_ATTR_RELOAD_FAILED, /* u8 0 or 1 */
+ DEVLINK_ATTR_HEALTH_REPORTER_DUMP_TS_NS, /* u64 */
/* add new attributes above here, update the policy in devlink.c */
__DEVLINK_ATTR_MAX,
diff --git a/include/uapi/linux/nvme_ioctl.h b/include/uapi/linux/nvme_ioctl.h
index e168dc5..d99b5a7 100644
--- a/include/uapi/linux/nvme_ioctl.h
+++ b/include/uapi/linux/nvme_ioctl.h
@@ -63,6 +63,7 @@ struct nvme_passthru_cmd64 {
__u32 cdw14;
__u32 cdw15;
__u32 timeout_ms;
+ __u32 rsvd2;
__u64 result;
};
diff --git a/include/uapi/linux/ptp_clock.h b/include/uapi/linux/ptp_clock.h
index 59e89a1..9dc9d00 100644
--- a/include/uapi/linux/ptp_clock.h
+++ b/include/uapi/linux/ptp_clock.h
@@ -31,13 +31,16 @@
#define PTP_ENABLE_FEATURE (1<<0)
#define PTP_RISING_EDGE (1<<1)
#define PTP_FALLING_EDGE (1<<2)
+#define PTP_STRICT_FLAGS (1<<3)
+#define PTP_EXTTS_EDGES (PTP_RISING_EDGE | PTP_FALLING_EDGE)
/*
* flag fields valid for the new PTP_EXTTS_REQUEST2 ioctl.
*/
#define PTP_EXTTS_VALID_FLAGS (PTP_ENABLE_FEATURE | \
PTP_RISING_EDGE | \
- PTP_FALLING_EDGE)
+ PTP_FALLING_EDGE | \
+ PTP_STRICT_FLAGS)
/*
* flag fields valid for the original PTP_EXTTS_REQUEST ioctl.
diff --git a/include/uapi/linux/sched.h b/include/uapi/linux/sched.h
index 99335e1..25b4fa0 100644
--- a/include/uapi/linux/sched.h
+++ b/include/uapi/linux/sched.h
@@ -51,6 +51,10 @@
* sent when the child exits.
* @stack: Specify the location of the stack for the
* child process.
+ * Note, @stack is expected to point to the
+ * lowest address. The stack direction will be
+ * determined by the kernel and set up
+ * appropriately based on @stack_size.
* @stack_size: The size of the stack for the child process.
* @tls: If CLONE_SETTLS is set, the tls descriptor
* is set to tls.
diff --git a/kernel/audit_watch.c b/kernel/audit_watch.c
index 1f31c2f..4508d5e 100644
--- a/kernel/audit_watch.c
+++ b/kernel/audit_watch.c
@@ -351,12 +351,12 @@ static int audit_get_nd(struct audit_watch *watch, struct path *parent)
struct dentry *d = kern_path_locked(watch->path, parent);
if (IS_ERR(d))
return PTR_ERR(d);
- inode_unlock(d_backing_inode(parent->dentry));
if (d_is_positive(d)) {
/* update watch filter fields */
watch->dev = d->d_sb->s_dev;
watch->ino = d_backing_inode(d)->i_ino;
}
+ inode_unlock(d_backing_inode(parent->dentry));
dput(d);
return 0;
}
diff --git a/kernel/bpf/cgroup.c b/kernel/bpf/cgroup.c
index ddd8add..a3eaf08 100644
--- a/kernel/bpf/cgroup.c
+++ b/kernel/bpf/cgroup.c
@@ -1311,12 +1311,12 @@ static bool sysctl_is_valid_access(int off, int size, enum bpf_access_type type,
return false;
switch (off) {
- case offsetof(struct bpf_sysctl, write):
+ case bpf_ctx_range(struct bpf_sysctl, write):
if (type != BPF_READ)
return false;
bpf_ctx_record_field_size(info, size_default);
return bpf_ctx_narrow_access_ok(off, size, size_default);
- case offsetof(struct bpf_sysctl, file_pos):
+ case bpf_ctx_range(struct bpf_sysctl, file_pos):
if (type == BPF_READ) {
bpf_ctx_record_field_size(info, size_default);
return bpf_ctx_narrow_access_ok(off, size, size_default);
diff --git a/kernel/bpf/syscall.c b/kernel/bpf/syscall.c
index 0937719..ace1cfa 100644
--- a/kernel/bpf/syscall.c
+++ b/kernel/bpf/syscall.c
@@ -126,7 +126,7 @@ static struct bpf_map *find_and_alloc_map(union bpf_attr *attr)
return map;
}
-void *bpf_map_area_alloc(size_t size, int numa_node)
+void *bpf_map_area_alloc(u64 size, int numa_node)
{
/* We really just want to fail instead of triggering OOM killer
* under memory pressure, therefore we set __GFP_NORETRY to kmalloc,
@@ -141,6 +141,9 @@ void *bpf_map_area_alloc(size_t size, int numa_node)
const gfp_t flags = __GFP_NOWARN | __GFP_ZERO;
void *area;
+ if (size >= SIZE_MAX)
+ return NULL;
+
if (size <= (PAGE_SIZE << PAGE_ALLOC_COSTLY_ORDER)) {
area = kmalloc_node(size, GFP_USER | __GFP_NORETRY | flags,
numa_node);
@@ -197,7 +200,7 @@ static void bpf_uncharge_memlock(struct user_struct *user, u32 pages)
atomic_long_sub(pages, &user->locked_vm);
}
-int bpf_map_charge_init(struct bpf_map_memory *mem, size_t size)
+int bpf_map_charge_init(struct bpf_map_memory *mem, u64 size)
{
u32 pages = round_up(size, PAGE_SIZE) >> PAGE_SHIFT;
struct user_struct *user;
diff --git a/kernel/cgroup/cgroup.c b/kernel/cgroup/cgroup.c
index 080561b..ef4242e 100644
--- a/kernel/cgroup/cgroup.c
+++ b/kernel/cgroup/cgroup.c
@@ -2119,11 +2119,12 @@ int cgroup_do_get_tree(struct fs_context *fc)
nsdentry = kernfs_node_dentry(cgrp->kn, sb);
dput(fc->root);
- fc->root = nsdentry;
if (IS_ERR(nsdentry)) {
- ret = PTR_ERR(nsdentry);
deactivate_locked_super(sb);
+ ret = PTR_ERR(nsdentry);
+ nsdentry = NULL;
}
+ fc->root = nsdentry;
}
if (!ctx->kfc.new_sb_created)
diff --git a/kernel/cpu.c b/kernel/cpu.c
index fc28e17..e2cad3e 100644
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -2373,7 +2373,18 @@ void __init boot_cpu_hotplug_init(void)
this_cpu_write(cpuhp_state.state, CPUHP_ONLINE);
}
-enum cpu_mitigations cpu_mitigations __ro_after_init = CPU_MITIGATIONS_AUTO;
+/*
+ * These are used for a global "mitigations=" cmdline option for toggling
+ * optional CPU mitigations.
+ */
+enum cpu_mitigations {
+ CPU_MITIGATIONS_OFF,
+ CPU_MITIGATIONS_AUTO,
+ CPU_MITIGATIONS_AUTO_NOSMT,
+};
+
+static enum cpu_mitigations cpu_mitigations __ro_after_init =
+ CPU_MITIGATIONS_AUTO;
static int __init mitigations_parse_cmdline(char *arg)
{
@@ -2390,3 +2401,17 @@ static int __init mitigations_parse_cmdline(char *arg)
return 0;
}
early_param("mitigations", mitigations_parse_cmdline);
+
+/* mitigations=off */
+bool cpu_mitigations_off(void)
+{
+ return cpu_mitigations == CPU_MITIGATIONS_OFF;
+}
+EXPORT_SYMBOL_GPL(cpu_mitigations_off);
+
+/* mitigations=auto,nosmt */
+bool cpu_mitigations_auto_nosmt(void)
+{
+ return cpu_mitigations == CPU_MITIGATIONS_AUTO_NOSMT;
+}
+EXPORT_SYMBOL_GPL(cpu_mitigations_auto_nosmt);
diff --git a/kernel/events/core.c b/kernel/events/core.c
index aec8dba..00a0146 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -1031,7 +1031,7 @@ perf_cgroup_set_timestamp(struct task_struct *task,
{
}
-void
+static inline void
perf_cgroup_switch(struct task_struct *task, struct task_struct *next)
{
}
@@ -10535,6 +10535,15 @@ perf_event_alloc(struct perf_event_attr *attr, int cpu,
goto err_ns;
}
+ /*
+ * Disallow uncore-cgroup events, they don't make sense as the cgroup will
+ * be different on other CPUs in the uncore mask.
+ */
+ if (pmu->task_ctx_nr == perf_invalid_context && cgroup_fd != -1) {
+ err = -EINVAL;
+ goto err_pmu;
+ }
+
if (event->attr.aux_output &&
!(pmu->capabilities & PERF_PMU_CAP_AUX_OUTPUT)) {
err = -EOPNOTSUPP;
@@ -11323,8 +11332,11 @@ perf_event_create_kernel_counter(struct perf_event_attr *attr, int cpu,
int err;
/*
- * Get the target context (task or percpu):
+ * Grouping is not supported for kernel events, neither is 'AUX',
+ * make sure the caller's intentions are adjusted.
*/
+ if (attr->aux_output)
+ return ERR_PTR(-EINVAL);
event = perf_event_alloc(attr, cpu, task, NULL, NULL,
overflow_handler, context, -1);
@@ -11336,6 +11348,9 @@ perf_event_create_kernel_counter(struct perf_event_attr *attr, int cpu,
/* Mark owner so we could distinguish it from user events. */
event->owner = TASK_TOMBSTONE;
+ /*
+ * Get the target context (task or percpu):
+ */
ctx = find_get_context(event->pmu, task, event);
if (IS_ERR(ctx)) {
err = PTR_ERR(ctx);
@@ -11787,7 +11802,7 @@ inherit_event(struct perf_event *parent_event,
GFP_KERNEL);
if (!child_ctx->task_ctx_data) {
free_event(child_event);
- return NULL;
+ return ERR_PTR(-ENOMEM);
}
}
@@ -11890,7 +11905,7 @@ static int inherit_group(struct perf_event *parent_event,
if (IS_ERR(child_ctr))
return PTR_ERR(child_ctr);
- if (sub->aux_event == parent_event &&
+ if (sub->aux_event == parent_event && child_ctr &&
!perf_get_aux_event(child_ctr, leader))
return -EINVAL;
}
diff --git a/kernel/fork.c b/kernel/fork.c
index bcdf531..55af693 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -2561,7 +2561,35 @@ noinline static int copy_clone_args_from_user(struct kernel_clone_args *kargs,
return 0;
}
-static bool clone3_args_valid(const struct kernel_clone_args *kargs)
+/**
+ * clone3_stack_valid - check and prepare stack
+ * @kargs: kernel clone args
+ *
+ * Verify that the stack arguments userspace gave us are sane.
+ * In addition, set the stack direction for userspace since it's easy for us to
+ * determine.
+ */
+static inline bool clone3_stack_valid(struct kernel_clone_args *kargs)
+{
+ if (kargs->stack == 0) {
+ if (kargs->stack_size > 0)
+ return false;
+ } else {
+ if (kargs->stack_size == 0)
+ return false;
+
+ if (!access_ok((void __user *)kargs->stack, kargs->stack_size))
+ return false;
+
+#if !defined(CONFIG_STACK_GROWSUP) && !defined(CONFIG_IA64)
+ kargs->stack += kargs->stack_size;
+#endif
+ }
+
+ return true;
+}
+
+static bool clone3_args_valid(struct kernel_clone_args *kargs)
{
/*
* All lower bits of the flag word are taken.
@@ -2581,6 +2609,9 @@ static bool clone3_args_valid(const struct kernel_clone_args *kargs)
kargs->exit_signal)
return false;
+ if (!clone3_stack_valid(kargs))
+ return false;
+
return true;
}
diff --git a/kernel/irq/irqdomain.c b/kernel/irq/irqdomain.c
index 132672b..dd822fd 100644
--- a/kernel/irq/irqdomain.c
+++ b/kernel/irq/irqdomain.c
@@ -51,7 +51,7 @@ EXPORT_SYMBOL_GPL(irqchip_fwnode_ops);
* @type: Type of irqchip_fwnode. See linux/irqdomain.h
* @name: Optional user provided domain name
* @id: Optional user provided id if name != NULL
- * @data: Optional user-provided data
+ * @pa: Optional user-provided physical address
*
* Allocate a struct irqchip_fwid, and return a poiner to the embedded
* fwnode_handle (or NULL on failure).
diff --git a/kernel/power/qos.c b/kernel/power/qos.c
index 04e83fd..a45cba7 100644
--- a/kernel/power/qos.c
+++ b/kernel/power/qos.c
@@ -814,6 +814,8 @@ EXPORT_SYMBOL_GPL(freq_qos_update_request);
*/
int freq_qos_remove_request(struct freq_qos_request *req)
{
+ int ret;
+
if (!req)
return -EINVAL;
@@ -821,7 +823,11 @@ int freq_qos_remove_request(struct freq_qos_request *req)
"%s() called for unknown object\n", __func__))
return -EINVAL;
- return freq_qos_apply(req, PM_QOS_REMOVE_REQ, PM_QOS_DEFAULT_VALUE);
+ ret = freq_qos_apply(req, PM_QOS_REMOVE_REQ, PM_QOS_DEFAULT_VALUE);
+ req->qos = NULL;
+ req->type = 0;
+
+ return ret;
}
EXPORT_SYMBOL_GPL(freq_qos_remove_request);
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index dd05a37..44123b4 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -1065,7 +1065,7 @@ uclamp_update_active(struct task_struct *p, enum uclamp_id clamp_id)
* affecting a valid clamp bucket, the next time it's enqueued,
* it will already see the updated clamp bucket value.
*/
- if (!p->uclamp[clamp_id].active) {
+ if (p->uclamp[clamp_id].active) {
uclamp_rq_dec_id(rq, p, clamp_id);
uclamp_rq_inc_id(rq, p, clamp_id);
}
@@ -1073,6 +1073,7 @@ uclamp_update_active(struct task_struct *p, enum uclamp_id clamp_id)
task_rq_unlock(rq, p, &rf);
}
+#ifdef CONFIG_UCLAMP_TASK_GROUP
static inline void
uclamp_update_active_tasks(struct cgroup_subsys_state *css,
unsigned int clamps)
@@ -1091,7 +1092,6 @@ uclamp_update_active_tasks(struct cgroup_subsys_state *css,
css_task_iter_end(&it);
}
-#ifdef CONFIG_UCLAMP_TASK_GROUP
static void cpu_util_update_eff(struct cgroup_subsys_state *css);
static void uclamp_update_root_tg(void)
{
@@ -3929,13 +3929,22 @@ pick_next_task(struct rq *rq, struct task_struct *prev, struct rq_flags *rf)
}
restart:
+#ifdef CONFIG_SMP
/*
- * Ensure that we put DL/RT tasks before the pick loop, such that they
- * can PULL higher prio tasks when we lower the RQ 'priority'.
+ * We must do the balancing pass before put_next_task(), such
+ * that when we release the rq->lock the task is in the same
+ * state as before we took rq->lock.
+ *
+ * We can terminate the balance pass as soon as we know there is
+ * a runnable task of @class priority or higher.
*/
- prev->sched_class->put_prev_task(rq, prev, rf);
- if (!rq->nr_running)
- newidle_balance(rq, rf);
+ for_class_range(class, prev->sched_class, &idle_sched_class) {
+ if (class->balance(rq, prev, rf))
+ break;
+ }
+#endif
+
+ put_prev_task(rq, prev);
for_each_class(class) {
p = class->pick_next_task(rq, NULL, NULL);
@@ -6010,10 +6019,11 @@ void init_idle(struct task_struct *idle, int cpu)
struct rq *rq = cpu_rq(cpu);
unsigned long flags;
+ __sched_fork(0, idle);
+
raw_spin_lock_irqsave(&idle->pi_lock, flags);
raw_spin_lock(&rq->lock);
- __sched_fork(0, idle);
idle->state = TASK_RUNNING;
idle->se.exec_start = sched_clock();
idle->flags |= PF_IDLE;
@@ -6201,7 +6211,7 @@ static struct task_struct *__pick_migrate_task(struct rq *rq)
for_each_class(class) {
next = class->pick_next_task(rq, NULL, NULL);
if (next) {
- next->sched_class->put_prev_task(rq, next, NULL);
+ next->sched_class->put_prev_task(rq, next);
return next;
}
}
diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c
index 2dc4872..a8a0803 100644
--- a/kernel/sched/deadline.c
+++ b/kernel/sched/deadline.c
@@ -1691,6 +1691,22 @@ static void check_preempt_equal_dl(struct rq *rq, struct task_struct *p)
resched_curr(rq);
}
+static int balance_dl(struct rq *rq, struct task_struct *p, struct rq_flags *rf)
+{
+ if (!on_dl_rq(&p->dl) && need_pull_dl_task(rq, p)) {
+ /*
+ * This is OK, because current is on_cpu, which avoids it being
+ * picked for load-balance and preemption/IRQs are still
+ * disabled avoiding further scheduler activity on it and we've
+ * not yet started the picking loop.
+ */
+ rq_unpin_lock(rq, rf);
+ pull_dl_task(rq);
+ rq_repin_lock(rq, rf);
+ }
+
+ return sched_stop_runnable(rq) || sched_dl_runnable(rq);
+}
#endif /* CONFIG_SMP */
/*
@@ -1758,45 +1774,28 @@ static struct task_struct *
pick_next_task_dl(struct rq *rq, struct task_struct *prev, struct rq_flags *rf)
{
struct sched_dl_entity *dl_se;
+ struct dl_rq *dl_rq = &rq->dl;
struct task_struct *p;
- struct dl_rq *dl_rq;
WARN_ON_ONCE(prev || rf);
- dl_rq = &rq->dl;
-
- if (unlikely(!dl_rq->dl_nr_running))
+ if (!sched_dl_runnable(rq))
return NULL;
dl_se = pick_next_dl_entity(rq, dl_rq);
BUG_ON(!dl_se);
-
p = dl_task_of(dl_se);
-
set_next_task_dl(rq, p);
-
return p;
}
-static void put_prev_task_dl(struct rq *rq, struct task_struct *p, struct rq_flags *rf)
+static void put_prev_task_dl(struct rq *rq, struct task_struct *p)
{
update_curr_dl(rq);
update_dl_rq_load_avg(rq_clock_pelt(rq), rq, 1);
if (on_dl_rq(&p->dl) && p->nr_cpus_allowed > 1)
enqueue_pushable_dl_task(rq, p);
-
- if (rf && !on_dl_rq(&p->dl) && need_pull_dl_task(rq, p)) {
- /*
- * This is OK, because current is on_cpu, which avoids it being
- * picked for load-balance and preemption/IRQs are still
- * disabled avoiding further scheduler activity on it and we've
- * not yet started the picking loop.
- */
- rq_unpin_lock(rq, rf);
- pull_dl_task(rq);
- rq_repin_lock(rq, rf);
- }
}
/*
@@ -2442,6 +2441,7 @@ const struct sched_class dl_sched_class = {
.set_next_task = set_next_task_dl,
#ifdef CONFIG_SMP
+ .balance = balance_dl,
.select_task_rq = select_task_rq_dl,
.migrate_task_rq = migrate_task_rq_dl,
.set_cpus_allowed = set_cpus_allowed_dl,
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 682a754..69a81a5 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -6570,6 +6570,15 @@ static void task_dead_fair(struct task_struct *p)
{
remove_entity_load_avg(&p->se);
}
+
+static int
+balance_fair(struct rq *rq, struct task_struct *prev, struct rq_flags *rf)
+{
+ if (rq->nr_running)
+ return 1;
+
+ return newidle_balance(rq, rf) != 0;
+}
#endif /* CONFIG_SMP */
static unsigned long wakeup_gran(struct sched_entity *se)
@@ -6746,7 +6755,7 @@ pick_next_task_fair(struct rq *rq, struct task_struct *prev, struct rq_flags *rf
int new_tasks;
again:
- if (!cfs_rq->nr_running)
+ if (!sched_fair_runnable(rq))
goto idle;
#ifdef CONFIG_FAIR_GROUP_SCHED
@@ -6884,7 +6893,7 @@ done: __maybe_unused;
/*
* Account for a descheduled task:
*/
-static void put_prev_task_fair(struct rq *rq, struct task_struct *prev, struct rq_flags *rf)
+static void put_prev_task_fair(struct rq *rq, struct task_struct *prev)
{
struct sched_entity *se = &prev->se;
struct cfs_rq *cfs_rq;
@@ -7539,6 +7548,19 @@ static void update_blocked_averages(int cpu)
update_rq_clock(rq);
/*
+ * update_cfs_rq_load_avg() can call cpufreq_update_util(). Make sure
+ * that RT, DL and IRQ signals have been updated before updating CFS.
+ */
+ curr_class = rq->curr->sched_class;
+ update_rt_rq_load_avg(rq_clock_pelt(rq), rq, curr_class == &rt_sched_class);
+ update_dl_rq_load_avg(rq_clock_pelt(rq), rq, curr_class == &dl_sched_class);
+ update_irq_load_avg(rq, 0);
+
+ /* Don't need periodic decay once load/util_avg are null */
+ if (others_have_blocked(rq))
+ done = false;
+
+ /*
* Iterates the task_group tree in a bottom up fashion, see
* list_add_leaf_cfs_rq() for details.
*/
@@ -7565,14 +7587,6 @@ static void update_blocked_averages(int cpu)
done = false;
}
- curr_class = rq->curr->sched_class;
- update_rt_rq_load_avg(rq_clock_pelt(rq), rq, curr_class == &rt_sched_class);
- update_dl_rq_load_avg(rq_clock_pelt(rq), rq, curr_class == &dl_sched_class);
- update_irq_load_avg(rq, 0);
- /* Don't need periodic decay once load/util_avg are null */
- if (others_have_blocked(rq))
- done = false;
-
update_blocked_load_status(rq, !done);
rq_unlock_irqrestore(rq, &rf);
}
@@ -7633,12 +7647,18 @@ static inline void update_blocked_averages(int cpu)
rq_lock_irqsave(rq, &rf);
update_rq_clock(rq);
- update_cfs_rq_load_avg(cfs_rq_clock_pelt(cfs_rq), cfs_rq);
+ /*
+ * update_cfs_rq_load_avg() can call cpufreq_update_util(). Make sure
+ * that RT, DL and IRQ signals have been updated before updating CFS.
+ */
curr_class = rq->curr->sched_class;
update_rt_rq_load_avg(rq_clock_pelt(rq), rq, curr_class == &rt_sched_class);
update_dl_rq_load_avg(rq_clock_pelt(rq), rq, curr_class == &dl_sched_class);
update_irq_load_avg(rq, 0);
+
+ update_cfs_rq_load_avg(cfs_rq_clock_pelt(cfs_rq), cfs_rq);
+
update_blocked_load_status(rq, cfs_rq_has_blocked(cfs_rq) || others_have_blocked(rq));
rq_unlock_irqrestore(rq, &rf);
}
@@ -10414,11 +10434,11 @@ const struct sched_class fair_sched_class = {
.check_preempt_curr = check_preempt_wakeup,
.pick_next_task = pick_next_task_fair,
-
.put_prev_task = put_prev_task_fair,
.set_next_task = set_next_task_fair,
#ifdef CONFIG_SMP
+ .balance = balance_fair,
.select_task_rq = select_task_rq_fair,
.migrate_task_rq = migrate_task_rq_fair,
diff --git a/kernel/sched/idle.c b/kernel/sched/idle.c
index 8dad5aa..80167b1 100644
--- a/kernel/sched/idle.c
+++ b/kernel/sched/idle.c
@@ -104,7 +104,7 @@ static int call_cpuidle(struct cpuidle_driver *drv, struct cpuidle_device *dev,
* update no idle residency and return.
*/
if (current_clr_polling_and_test()) {
- dev->last_residency = 0;
+ dev->last_residency_ns = 0;
local_irq_enable();
return -EBUSY;
}
@@ -165,7 +165,9 @@ static void cpuidle_idle_call(void)
* until a proper wakeup interrupt happens.
*/
- if (idle_should_enter_s2idle() || dev->use_deepest_state) {
+ if (idle_should_enter_s2idle() || dev->forced_idle_latency_limit_ns) {
+ u64 max_latency_ns;
+
if (idle_should_enter_s2idle()) {
rcu_idle_enter();
@@ -176,12 +178,16 @@ static void cpuidle_idle_call(void)
}
rcu_idle_exit();
+
+ max_latency_ns = U64_MAX;
+ } else {
+ max_latency_ns = dev->forced_idle_latency_limit_ns;
}
tick_nohz_idle_stop_tick();
rcu_idle_enter();
- next_state = cpuidle_find_deepest_state(drv, dev);
+ next_state = cpuidle_find_deepest_state(drv, dev, max_latency_ns);
call_cpuidle(drv, dev, next_state);
} else {
bool stop_tick = true;
@@ -311,7 +317,7 @@ static enum hrtimer_restart idle_inject_timer_fn(struct hrtimer *timer)
return HRTIMER_NORESTART;
}
-void play_idle(unsigned long duration_us)
+void play_idle_precise(u64 duration_ns, u64 latency_ns)
{
struct idle_timer it;
@@ -323,29 +329,29 @@ void play_idle(unsigned long duration_us)
WARN_ON_ONCE(current->nr_cpus_allowed != 1);
WARN_ON_ONCE(!(current->flags & PF_KTHREAD));
WARN_ON_ONCE(!(current->flags & PF_NO_SETAFFINITY));
- WARN_ON_ONCE(!duration_us);
+ WARN_ON_ONCE(!duration_ns);
rcu_sleep_check();
preempt_disable();
current->flags |= PF_IDLE;
- cpuidle_use_deepest_state(true);
+ cpuidle_use_deepest_state(latency_ns);
it.done = 0;
hrtimer_init_on_stack(&it.timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
it.timer.function = idle_inject_timer_fn;
- hrtimer_start(&it.timer, ns_to_ktime(duration_us * NSEC_PER_USEC),
+ hrtimer_start(&it.timer, ns_to_ktime(duration_ns),
HRTIMER_MODE_REL_PINNED);
while (!READ_ONCE(it.done))
do_idle();
- cpuidle_use_deepest_state(false);
+ cpuidle_use_deepest_state(0);
current->flags &= ~PF_IDLE;
preempt_fold_need_resched();
preempt_enable();
}
-EXPORT_SYMBOL_GPL(play_idle);
+EXPORT_SYMBOL_GPL(play_idle_precise);
void cpu_startup_entry(enum cpuhp_state state)
{
@@ -365,6 +371,12 @@ select_task_rq_idle(struct task_struct *p, int cpu, int sd_flag, int flags)
{
return task_cpu(p); /* IDLE tasks as never migrated */
}
+
+static int
+balance_idle(struct rq *rq, struct task_struct *prev, struct rq_flags *rf)
+{
+ return WARN_ON_ONCE(1);
+}
#endif
/*
@@ -375,7 +387,7 @@ static void check_preempt_curr_idle(struct rq *rq, struct task_struct *p, int fl
resched_curr(rq);
}
-static void put_prev_task_idle(struct rq *rq, struct task_struct *prev, struct rq_flags *rf)
+static void put_prev_task_idle(struct rq *rq, struct task_struct *prev)
{
}
@@ -460,6 +472,7 @@ const struct sched_class idle_sched_class = {
.set_next_task = set_next_task_idle,
#ifdef CONFIG_SMP
+ .balance = balance_idle,
.select_task_rq = select_task_rq_idle,
.set_cpus_allowed = set_cpus_allowed_common,
#endif
diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c
index ebaa4e6..9b8adc0 100644
--- a/kernel/sched/rt.c
+++ b/kernel/sched/rt.c
@@ -1469,6 +1469,22 @@ static void check_preempt_equal_prio(struct rq *rq, struct task_struct *p)
resched_curr(rq);
}
+static int balance_rt(struct rq *rq, struct task_struct *p, struct rq_flags *rf)
+{
+ if (!on_rt_rq(&p->rt) && need_pull_rt_task(rq, p)) {
+ /*
+ * This is OK, because current is on_cpu, which avoids it being
+ * picked for load-balance and preemption/IRQs are still
+ * disabled avoiding further scheduler activity on it and we've
+ * not yet started the picking loop.
+ */
+ rq_unpin_lock(rq, rf);
+ pull_rt_task(rq);
+ rq_repin_lock(rq, rf);
+ }
+
+ return sched_stop_runnable(rq) || sched_dl_runnable(rq) || sched_rt_runnable(rq);
+}
#endif /* CONFIG_SMP */
/*
@@ -1552,21 +1568,18 @@ static struct task_struct *
pick_next_task_rt(struct rq *rq, struct task_struct *prev, struct rq_flags *rf)
{
struct task_struct *p;
- struct rt_rq *rt_rq = &rq->rt;
WARN_ON_ONCE(prev || rf);
- if (!rt_rq->rt_queued)
+ if (!sched_rt_runnable(rq))
return NULL;
p = _pick_next_task_rt(rq);
-
set_next_task_rt(rq, p);
-
return p;
}
-static void put_prev_task_rt(struct rq *rq, struct task_struct *p, struct rq_flags *rf)
+static void put_prev_task_rt(struct rq *rq, struct task_struct *p)
{
update_curr_rt(rq);
@@ -1578,18 +1591,6 @@ static void put_prev_task_rt(struct rq *rq, struct task_struct *p, struct rq_fla
*/
if (on_rt_rq(&p->rt) && p->nr_cpus_allowed > 1)
enqueue_pushable_task(rq, p);
-
- if (rf && !on_rt_rq(&p->rt) && need_pull_rt_task(rq, p)) {
- /*
- * This is OK, because current is on_cpu, which avoids it being
- * picked for load-balance and preemption/IRQs are still
- * disabled avoiding further scheduler activity on it and we've
- * not yet started the picking loop.
- */
- rq_unpin_lock(rq, rf);
- pull_rt_task(rq);
- rq_repin_lock(rq, rf);
- }
}
#ifdef CONFIG_SMP
@@ -2366,8 +2367,8 @@ const struct sched_class rt_sched_class = {
.set_next_task = set_next_task_rt,
#ifdef CONFIG_SMP
+ .balance = balance_rt,
.select_task_rq = select_task_rq_rt,
-
.set_cpus_allowed = set_cpus_allowed_common,
.rq_online = rq_online_rt,
.rq_offline = rq_offline_rt,
diff --git a/kernel/sched/sched.h b/kernel/sched/sched.h
index 0db2c1b..c8870c5 100644
--- a/kernel/sched/sched.h
+++ b/kernel/sched/sched.h
@@ -1727,10 +1727,11 @@ struct sched_class {
struct task_struct * (*pick_next_task)(struct rq *rq,
struct task_struct *prev,
struct rq_flags *rf);
- void (*put_prev_task)(struct rq *rq, struct task_struct *p, struct rq_flags *rf);
+ void (*put_prev_task)(struct rq *rq, struct task_struct *p);
void (*set_next_task)(struct rq *rq, struct task_struct *p);
#ifdef CONFIG_SMP
+ int (*balance)(struct rq *rq, struct task_struct *prev, struct rq_flags *rf);
int (*select_task_rq)(struct task_struct *p, int task_cpu, int sd_flag, int flags);
void (*migrate_task_rq)(struct task_struct *p, int new_cpu);
@@ -1773,7 +1774,7 @@ struct sched_class {
static inline void put_prev_task(struct rq *rq, struct task_struct *prev)
{
WARN_ON_ONCE(rq->curr != prev);
- prev->sched_class->put_prev_task(rq, prev, NULL);
+ prev->sched_class->put_prev_task(rq, prev);
}
static inline void set_next_task(struct rq *rq, struct task_struct *next)
@@ -1787,8 +1788,12 @@ static inline void set_next_task(struct rq *rq, struct task_struct *next)
#else
#define sched_class_highest (&dl_sched_class)
#endif
+
+#define for_class_range(class, _from, _to) \
+ for (class = (_from); class != (_to); class = class->next)
+
#define for_each_class(class) \
- for (class = sched_class_highest; class; class = class->next)
+ for_class_range(class, sched_class_highest, NULL)
extern const struct sched_class stop_sched_class;
extern const struct sched_class dl_sched_class;
@@ -1796,6 +1801,25 @@ extern const struct sched_class rt_sched_class;
extern const struct sched_class fair_sched_class;
extern const struct sched_class idle_sched_class;
+static inline bool sched_stop_runnable(struct rq *rq)
+{
+ return rq->stop && task_on_rq_queued(rq->stop);
+}
+
+static inline bool sched_dl_runnable(struct rq *rq)
+{
+ return rq->dl.dl_nr_running > 0;
+}
+
+static inline bool sched_rt_runnable(struct rq *rq)
+{
+ return rq->rt.rt_queued > 0;
+}
+
+static inline bool sched_fair_runnable(struct rq *rq)
+{
+ return rq->cfs.nr_running > 0;
+}
#ifdef CONFIG_SMP
diff --git a/kernel/sched/stop_task.c b/kernel/sched/stop_task.c
index 7e1cee4..c064073 100644
--- a/kernel/sched/stop_task.c
+++ b/kernel/sched/stop_task.c
@@ -15,6 +15,12 @@ select_task_rq_stop(struct task_struct *p, int cpu, int sd_flag, int flags)
{
return task_cpu(p); /* stop tasks as never migrate */
}
+
+static int
+balance_stop(struct rq *rq, struct task_struct *prev, struct rq_flags *rf)
+{
+ return sched_stop_runnable(rq);
+}
#endif /* CONFIG_SMP */
static void
@@ -31,16 +37,13 @@ static void set_next_task_stop(struct rq *rq, struct task_struct *stop)
static struct task_struct *
pick_next_task_stop(struct rq *rq, struct task_struct *prev, struct rq_flags *rf)
{
- struct task_struct *stop = rq->stop;
-
WARN_ON_ONCE(prev || rf);
- if (!stop || !task_on_rq_queued(stop))
+ if (!sched_stop_runnable(rq))
return NULL;
- set_next_task_stop(rq, stop);
-
- return stop;
+ set_next_task_stop(rq, rq->stop);
+ return rq->stop;
}
static void
@@ -60,7 +63,7 @@ static void yield_task_stop(struct rq *rq)
BUG(); /* the stop task should never yield, its pointless. */
}
-static void put_prev_task_stop(struct rq *rq, struct task_struct *prev, struct rq_flags *rf)
+static void put_prev_task_stop(struct rq *rq, struct task_struct *prev)
{
struct task_struct *curr = rq->curr;
u64 delta_exec;
@@ -129,6 +132,7 @@ const struct sched_class stop_sched_class = {
.set_next_task = set_next_task_stop,
#ifdef CONFIG_SMP
+ .balance = balance_stop,
.select_task_rq = select_task_rq_stop,
.set_cpus_allowed = set_cpus_allowed_common,
#endif
diff --git a/kernel/signal.c b/kernel/signal.c
index c4da1ef..bcd46f5 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -2205,8 +2205,8 @@ static void ptrace_stop(int exit_code, int why, int clear_code, kernel_siginfo_t
*/
preempt_disable();
read_unlock(&tasklist_lock);
- preempt_enable_no_resched();
cgroup_enter_frozen();
+ preempt_enable_no_resched();
freezable_schedule();
cgroup_leave_frozen(true);
} else {
diff --git a/kernel/stacktrace.c b/kernel/stacktrace.c
index 6d1f68b7..c9ea7eb 100644
--- a/kernel/stacktrace.c
+++ b/kernel/stacktrace.c
@@ -141,7 +141,8 @@ unsigned int stack_trace_save_tsk(struct task_struct *tsk, unsigned long *store,
struct stacktrace_cookie c = {
.store = store,
.size = size,
- .skip = skipnr + 1,
+ /* skip this function if they are tracing us */
+ .skip = skipnr + !!(current == tsk),
};
if (!try_get_task_stack(tsk))
@@ -298,7 +299,8 @@ unsigned int stack_trace_save_tsk(struct task_struct *task,
struct stack_trace trace = {
.entries = store,
.max_entries = size,
- .skip = skipnr + 1,
+ /* skip this function if they are tracing us */
+ .skip = skipnr + !!(current == task),
};
save_stack_trace_tsk(task, &trace);
diff --git a/kernel/time/ntp.c b/kernel/time/ntp.c
index 65eb796..069ca78 100644
--- a/kernel/time/ntp.c
+++ b/kernel/time/ntp.c
@@ -771,7 +771,7 @@ int __do_adjtimex(struct __kernel_timex *txc, const struct timespec64 *ts,
/* fill PPS status fields */
pps_fill_timex(txc);
- txc->time.tv_sec = (time_t)ts->tv_sec;
+ txc->time.tv_sec = ts->tv_sec;
txc->time.tv_usec = ts->tv_nsec;
if (!(time_status & STA_NANO))
txc->time.tv_usec = ts->tv_nsec / NSEC_PER_USEC;
diff --git a/kernel/time/vsyscall.c b/kernel/time/vsyscall.c
index 4bc37ac..5ee0f77 100644
--- a/kernel/time/vsyscall.c
+++ b/kernel/time/vsyscall.c
@@ -110,8 +110,7 @@ void update_vsyscall(struct timekeeper *tk)
nsec = nsec + tk->wall_to_monotonic.tv_nsec;
vdso_ts->sec += __iter_div_u64_rem(nsec, NSEC_PER_SEC, &vdso_ts->nsec);
- if (__arch_use_vsyscall(vdata))
- update_vdso_data(vdata, tk);
+ update_vdso_data(vdata, tk);
__arch_update_vsyscall(vdata, tk);
@@ -124,10 +123,8 @@ void update_vsyscall_tz(void)
{
struct vdso_data *vdata = __arch_get_k_vdso_data();
- if (__arch_use_vsyscall(vdata)) {
- vdata[CS_HRES_COARSE].tz_minuteswest = sys_tz.tz_minuteswest;
- vdata[CS_HRES_COARSE].tz_dsttime = sys_tz.tz_dsttime;
- }
+ vdata[CS_HRES_COARSE].tz_minuteswest = sys_tz.tz_minuteswest;
+ vdata[CS_HRES_COARSE].tz_dsttime = sys_tz.tz_dsttime;
__arch_sync_vdso_data(vdata);
}
diff --git a/lib/Kconfig b/lib/Kconfig
index 183f92a..3321d04 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -447,7 +447,6 @@
config HAS_IOMEM
bool
depends on !NO_IOMEM
- select GENERIC_IO
default y
config HAS_IOPORT_MAP
diff --git a/lib/dump_stack.c b/lib/dump_stack.c
index 5cff72f..33ffbf3 100644
--- a/lib/dump_stack.c
+++ b/lib/dump_stack.c
@@ -106,7 +106,12 @@ asmlinkage __visible void dump_stack(void)
was_locked = 1;
} else {
local_irq_restore(flags);
- cpu_relax();
+ /*
+ * Wait for the lock to release before jumping to
+ * atomic_cmpxchg() in order to mitigate the thundering herd
+ * problem.
+ */
+ do { cpu_relax(); } while (atomic_read(&dump_lock) != -1);
goto retry;
}
diff --git a/lib/idr.c b/lib/idr.c
index 66a3748..c2cf2c5 100644
--- a/lib/idr.c
+++ b/lib/idr.c
@@ -215,7 +215,7 @@ int idr_for_each(const struct idr *idr,
EXPORT_SYMBOL(idr_for_each);
/**
- * idr_get_next() - Find next populated entry.
+ * idr_get_next_ul() - Find next populated entry.
* @idr: IDR handle.
* @nextid: Pointer to an ID.
*
@@ -224,7 +224,7 @@ EXPORT_SYMBOL(idr_for_each);
* to the ID of the found value. To use in a loop, the value pointed to by
* nextid must be incremented by the user.
*/
-void *idr_get_next(struct idr *idr, int *nextid)
+void *idr_get_next_ul(struct idr *idr, unsigned long *nextid)
{
struct radix_tree_iter iter;
void __rcu **slot;
@@ -245,18 +245,14 @@ void *idr_get_next(struct idr *idr, int *nextid)
}
if (!slot)
return NULL;
- id = iter.index + base;
- if (WARN_ON_ONCE(id > INT_MAX))
- return NULL;
-
- *nextid = id;
+ *nextid = iter.index + base;
return entry;
}
-EXPORT_SYMBOL(idr_get_next);
+EXPORT_SYMBOL(idr_get_next_ul);
/**
- * idr_get_next_ul() - Find next populated entry.
+ * idr_get_next() - Find next populated entry.
* @idr: IDR handle.
* @nextid: Pointer to an ID.
*
@@ -265,22 +261,17 @@ EXPORT_SYMBOL(idr_get_next);
* to the ID of the found value. To use in a loop, the value pointed to by
* nextid must be incremented by the user.
*/
-void *idr_get_next_ul(struct idr *idr, unsigned long *nextid)
+void *idr_get_next(struct idr *idr, int *nextid)
{
- struct radix_tree_iter iter;
- void __rcu **slot;
- unsigned long base = idr->idr_base;
unsigned long id = *nextid;
+ void *entry = idr_get_next_ul(idr, &id);
- id = (id < base) ? 0 : id - base;
- slot = radix_tree_iter_find(&idr->idr_rt, &iter, id);
- if (!slot)
+ if (WARN_ON_ONCE(id > INT_MAX))
return NULL;
-
- *nextid = iter.index + base;
- return rcu_dereference_raw(*slot);
+ *nextid = id;
+ return entry;
}
-EXPORT_SYMBOL(idr_get_next_ul);
+EXPORT_SYMBOL(idr_get_next);
/**
* idr_replace() - replace pointer for given ID.
diff --git a/lib/radix-tree.c b/lib/radix-tree.c
index 18c1dfb..c8fa1d2 100644
--- a/lib/radix-tree.c
+++ b/lib/radix-tree.c
@@ -1529,7 +1529,7 @@ void __rcu **idr_get_free(struct radix_tree_root *root,
offset = radix_tree_find_next_bit(node, IDR_FREE,
offset + 1);
start = next_index(start, node, offset);
- if (start > max)
+ if (start > max || start == 0)
return ERR_PTR(-ENOSPC);
while (offset == RADIX_TREE_MAP_SIZE) {
offset = node->offset + 1;
diff --git a/lib/test_xarray.c b/lib/test_xarray.c
index 9d631a7..7df4f7f 100644
--- a/lib/test_xarray.c
+++ b/lib/test_xarray.c
@@ -1110,6 +1110,28 @@ static noinline void check_find_entry(struct xarray *xa)
XA_BUG_ON(xa, !xa_empty(xa));
}
+static noinline void check_move_tiny(struct xarray *xa)
+{
+ XA_STATE(xas, xa, 0);
+
+ XA_BUG_ON(xa, !xa_empty(xa));
+ rcu_read_lock();
+ XA_BUG_ON(xa, xas_next(&xas) != NULL);
+ XA_BUG_ON(xa, xas_next(&xas) != NULL);
+ rcu_read_unlock();
+ xa_store_index(xa, 0, GFP_KERNEL);
+ rcu_read_lock();
+ xas_set(&xas, 0);
+ XA_BUG_ON(xa, xas_next(&xas) != xa_mk_index(0));
+ XA_BUG_ON(xa, xas_next(&xas) != NULL);
+ xas_set(&xas, 0);
+ XA_BUG_ON(xa, xas_prev(&xas) != xa_mk_index(0));
+ XA_BUG_ON(xa, xas_prev(&xas) != NULL);
+ rcu_read_unlock();
+ xa_erase_index(xa, 0);
+ XA_BUG_ON(xa, !xa_empty(xa));
+}
+
static noinline void check_move_small(struct xarray *xa, unsigned long idx)
{
XA_STATE(xas, xa, 0);
@@ -1217,6 +1239,8 @@ static noinline void check_move(struct xarray *xa)
xa_destroy(xa);
+ check_move_tiny(xa);
+
for (i = 0; i < 16; i++)
check_move_small(xa, 1UL << i);
diff --git a/lib/xarray.c b/lib/xarray.c
index 446b956..1237c21 100644
--- a/lib/xarray.c
+++ b/lib/xarray.c
@@ -994,6 +994,8 @@ void *__xas_prev(struct xa_state *xas)
if (!xas_frozen(xas->xa_node))
xas->xa_index--;
+ if (!xas->xa_node)
+ return set_bounds(xas);
if (xas_not_node(xas->xa_node))
return xas_load(xas);
@@ -1031,6 +1033,8 @@ void *__xas_next(struct xa_state *xas)
if (!xas_frozen(xas->xa_node))
xas->xa_index++;
+ if (!xas->xa_node)
+ return set_bounds(xas);
if (xas_not_node(xas->xa_node))
return xas_load(xas);
diff --git a/lib/xz/xz_dec_lzma2.c b/lib/xz/xz_dec_lzma2.c
index 08c3c80..156f26f 100644
--- a/lib/xz/xz_dec_lzma2.c
+++ b/lib/xz/xz_dec_lzma2.c
@@ -1146,6 +1146,7 @@ XZ_EXTERN enum xz_ret xz_dec_lzma2_reset(struct xz_dec_lzma2 *s, uint8_t props)
if (DEC_IS_DYNALLOC(s->dict.mode)) {
if (s->dict.allocated < s->dict.size) {
+ s->dict.allocated = s->dict.size;
vfree(s->dict.buf);
s->dict.buf = vmalloc(s->dict.size);
if (s->dict.buf == NULL) {
diff --git a/mm/debug.c b/mm/debug.c
index 8345bb6..0461df1 100644
--- a/mm/debug.c
+++ b/mm/debug.c
@@ -67,28 +67,31 @@ void __dump_page(struct page *page, const char *reason)
*/
mapcount = PageSlab(page) ? 0 : page_mapcount(page);
- pr_warn("page:%px refcount:%d mapcount:%d mapping:%px index:%#lx",
- page, page_ref_count(page), mapcount,
- page->mapping, page_to_pgoff(page));
if (PageCompound(page))
- pr_cont(" compound_mapcount: %d", compound_mapcount(page));
- pr_cont("\n");
- if (PageAnon(page))
- pr_warn("anon ");
- else if (PageKsm(page))
- pr_warn("ksm ");
+ pr_warn("page:%px refcount:%d mapcount:%d mapping:%px "
+ "index:%#lx compound_mapcount: %d\n",
+ page, page_ref_count(page), mapcount,
+ page->mapping, page_to_pgoff(page),
+ compound_mapcount(page));
+ else
+ pr_warn("page:%px refcount:%d mapcount:%d mapping:%px index:%#lx\n",
+ page, page_ref_count(page), mapcount,
+ page->mapping, page_to_pgoff(page));
+ if (PageKsm(page))
+ pr_warn("ksm flags: %#lx(%pGp)\n", page->flags, &page->flags);
+ else if (PageAnon(page))
+ pr_warn("anon flags: %#lx(%pGp)\n", page->flags, &page->flags);
else if (mapping) {
- pr_warn("%ps ", mapping->a_ops);
if (mapping->host && mapping->host->i_dentry.first) {
struct dentry *dentry;
dentry = container_of(mapping->host->i_dentry.first, struct dentry, d_u.d_alias);
- pr_warn("name:\"%pd\" ", dentry);
- }
+ pr_warn("%ps name:\"%pd\"\n", mapping->a_ops, dentry);
+ } else
+ pr_warn("%ps\n", mapping->a_ops);
+ pr_warn("flags: %#lx(%pGp)\n", page->flags, &page->flags);
}
BUILD_BUG_ON(ARRAY_SIZE(pageflag_names) != __NR_PAGEFLAGS + 1);
- pr_warn("flags: %#lx(%pGp)\n", page->flags, &page->flags);
-
hex_only:
print_hex_dump(KERN_WARNING, "raw: ", DUMP_PREFIX_NONE, 32,
sizeof(unsigned long), page,
diff --git a/mm/hugetlb_cgroup.c b/mm/hugetlb_cgroup.c
index f1930fa..2ac38bd 100644
--- a/mm/hugetlb_cgroup.c
+++ b/mm/hugetlb_cgroup.c
@@ -196,7 +196,7 @@ int hugetlb_cgroup_charge_cgroup(int idx, unsigned long nr_pages,
again:
rcu_read_lock();
h_cg = hugetlb_cgroup_from_task(current);
- if (!css_tryget_online(&h_cg->css)) {
+ if (!css_tryget(&h_cg->css)) {
rcu_read_unlock();
goto again;
}
diff --git a/mm/khugepaged.c b/mm/khugepaged.c
index 0a1b4b4..a8a57be 100644
--- a/mm/khugepaged.c
+++ b/mm/khugepaged.c
@@ -1028,12 +1028,13 @@ static void collapse_huge_page(struct mm_struct *mm,
anon_vma_lock_write(vma->anon_vma);
- pte = pte_offset_map(pmd, address);
- pte_ptl = pte_lockptr(mm, pmd);
-
mmu_notifier_range_init(&range, MMU_NOTIFY_CLEAR, 0, NULL, mm,
address, address + HPAGE_PMD_SIZE);
mmu_notifier_invalidate_range_start(&range);
+
+ pte = pte_offset_map(pmd, address);
+ pte_ptl = pte_lockptr(mm, pmd);
+
pmd_ptl = pmd_lock(mm, pmd); /* probably unnecessary */
/*
* After this gup_fast can't run anymore. This also removes
@@ -1601,17 +1602,6 @@ static void collapse_file(struct mm_struct *mm,
result = SCAN_FAIL;
goto xa_unlocked;
}
- } else if (!PageUptodate(page)) {
- xas_unlock_irq(&xas);
- wait_on_page_locked(page);
- if (!trylock_page(page)) {
- result = SCAN_PAGE_LOCK;
- goto xa_unlocked;
- }
- get_page(page);
- } else if (PageDirty(page)) {
- result = SCAN_FAIL;
- goto xa_locked;
} else if (trylock_page(page)) {
get_page(page);
xas_unlock_irq(&xas);
@@ -1626,7 +1616,12 @@ static void collapse_file(struct mm_struct *mm,
* without racing with truncate.
*/
VM_BUG_ON_PAGE(!PageLocked(page), page);
- VM_BUG_ON_PAGE(!PageUptodate(page), page);
+
+ /* make sure the page is up to date */
+ if (unlikely(!PageUptodate(page))) {
+ result = SCAN_FAIL;
+ goto out_unlock;
+ }
/*
* If file was truncated then extended, or hole-punched, before
@@ -1642,6 +1637,16 @@ static void collapse_file(struct mm_struct *mm,
goto out_unlock;
}
+ if (!is_shmem && PageDirty(page)) {
+ /*
+ * khugepaged only works on read-only fd, so this
+ * page is dirty because it hasn't been flushed
+ * since first write.
+ */
+ result = SCAN_FAIL;
+ goto out_unlock;
+ }
+
if (isolate_lru_page(page)) {
result = SCAN_DEL_PAGE_LRU;
goto out_unlock;
diff --git a/mm/madvise.c b/mm/madvise.c
index 2be9f3f..94c343b 100644
--- a/mm/madvise.c
+++ b/mm/madvise.c
@@ -363,8 +363,12 @@ static int madvise_cold_or_pageout_pte_range(pmd_t *pmd,
ClearPageReferenced(page);
test_and_clear_page_young(page);
if (pageout) {
- if (!isolate_lru_page(page))
- list_add(&page->lru, &page_list);
+ if (!isolate_lru_page(page)) {
+ if (PageUnevictable(page))
+ putback_lru_page(page);
+ else
+ list_add(&page->lru, &page_list);
+ }
} else
deactivate_page(page);
huge_unlock:
@@ -441,8 +445,12 @@ static int madvise_cold_or_pageout_pte_range(pmd_t *pmd,
ClearPageReferenced(page);
test_and_clear_page_young(page);
if (pageout) {
- if (!isolate_lru_page(page))
- list_add(&page->lru, &page_list);
+ if (!isolate_lru_page(page)) {
+ if (PageUnevictable(page))
+ putback_lru_page(page);
+ else
+ list_add(&page->lru, &page_list);
+ }
} else
deactivate_page(page);
}
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 3631065..46ad252 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -484,7 +484,7 @@ ino_t page_cgroup_ino(struct page *page)
unsigned long ino = 0;
rcu_read_lock();
- if (PageHead(page) && PageSlab(page))
+ if (PageSlab(page) && !PageTail(page))
memcg = memcg_from_slab_page(page);
else
memcg = READ_ONCE(page->mem_cgroup);
@@ -960,7 +960,7 @@ struct mem_cgroup *get_mem_cgroup_from_mm(struct mm_struct *mm)
if (unlikely(!memcg))
memcg = root_mem_cgroup;
}
- } while (!css_tryget_online(&memcg->css));
+ } while (!css_tryget(&memcg->css));
rcu_read_unlock();
return memcg;
}
@@ -2535,6 +2535,15 @@ static int try_charge(struct mem_cgroup *memcg, gfp_t gfp_mask,
}
/*
+ * Memcg doesn't have a dedicated reserve for atomic
+ * allocations. But like the global atomic pool, we need to
+ * put the burden of reclaim on regular allocation requests
+ * and let these go through as privileged allocations.
+ */
+ if (gfp_mask & __GFP_ATOMIC)
+ goto force;
+
+ /*
* Unlike in global OOM situations, memcg is not in a physical
* memory shortage. Allow dying and OOM-killed tasks to
* bypass the last charges so that they can exit quickly and
@@ -5014,12 +5023,6 @@ static void __mem_cgroup_free(struct mem_cgroup *memcg)
{
int node;
- /*
- * Flush percpu vmstats and vmevents to guarantee the value correctness
- * on parent's and all ancestor levels.
- */
- memcg_flush_percpu_vmstats(memcg, false);
- memcg_flush_percpu_vmevents(memcg);
for_each_node(node)
free_mem_cgroup_per_node_info(memcg, node);
free_percpu(memcg->vmstats_percpu);
@@ -5030,6 +5033,12 @@ static void __mem_cgroup_free(struct mem_cgroup *memcg)
static void mem_cgroup_free(struct mem_cgroup *memcg)
{
memcg_wb_domain_exit(memcg);
+ /*
+ * Flush percpu vmstats and vmevents to guarantee the value correctness
+ * on parent's and all ancestor levels.
+ */
+ memcg_flush_percpu_vmstats(memcg, false);
+ memcg_flush_percpu_vmevents(memcg);
__mem_cgroup_free(memcg);
}
diff --git a/mm/memory_hotplug.c b/mm/memory_hotplug.c
index df570e5..3b62a9f 100644
--- a/mm/memory_hotplug.c
+++ b/mm/memory_hotplug.c
@@ -447,6 +447,14 @@ static void update_pgdat_span(struct pglist_data *pgdat)
zone->spanned_pages;
/* No need to lock the zones, they can't change. */
+ if (!zone->spanned_pages)
+ continue;
+ if (!node_end_pfn) {
+ node_start_pfn = zone->zone_start_pfn;
+ node_end_pfn = zone_end_pfn;
+ continue;
+ }
+
if (zone_end_pfn > node_end_pfn)
node_end_pfn = zone_end_pfn;
if (zone->zone_start_pfn < node_start_pfn)
@@ -1638,6 +1646,18 @@ static int check_cpu_on_node(pg_data_t *pgdat)
return 0;
}
+static int check_no_memblock_for_node_cb(struct memory_block *mem, void *arg)
+{
+ int nid = *(int *)arg;
+
+ /*
+ * If a memory block belongs to multiple nodes, the stored nid is not
+ * reliable. However, such blocks are always online (e.g., cannot get
+ * offlined) and, therefore, are still spanned by the node.
+ */
+ return mem->nid == nid ? -EEXIST : 0;
+}
+
/**
* try_offline_node
* @nid: the node ID
@@ -1650,25 +1670,24 @@ static int check_cpu_on_node(pg_data_t *pgdat)
void try_offline_node(int nid)
{
pg_data_t *pgdat = NODE_DATA(nid);
- unsigned long start_pfn = pgdat->node_start_pfn;
- unsigned long end_pfn = start_pfn + pgdat->node_spanned_pages;
- unsigned long pfn;
+ int rc;
- for (pfn = start_pfn; pfn < end_pfn; pfn += PAGES_PER_SECTION) {
- unsigned long section_nr = pfn_to_section_nr(pfn);
-
- if (!present_section_nr(section_nr))
- continue;
-
- if (pfn_to_nid(pfn) != nid)
- continue;
-
- /*
- * some memory sections of this node are not removed, and we
- * can't offline node now.
- */
+ /*
+ * If the node still spans pages (especially ZONE_DEVICE), don't
+ * offline it. A node spans memory after move_pfn_range_to_zone(),
+ * e.g., after the memory block was onlined.
+ */
+ if (pgdat->node_spanned_pages)
return;
- }
+
+ /*
+ * Especially offline memory blocks might not be spanned by the
+ * node. They will get spanned by the node once they get onlined.
+ * However, they link to the node in sysfs and can get onlined later.
+ */
+ rc = for_each_memory_block(&nid, check_no_memblock_for_node_cb);
+ if (rc)
+ return;
if (check_cpu_on_node(pgdat))
return;
diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index 4ae967b..e08c941 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -672,7 +672,9 @@ static const struct mm_walk_ops queue_pages_walk_ops = {
* 1 - there is unmovable page, but MPOL_MF_MOVE* & MPOL_MF_STRICT were
* specified.
* 0 - queue pages successfully or no misplaced page.
- * -EIO - there is misplaced page and only MPOL_MF_STRICT was specified.
+ * errno - i.e. misplaced pages with MPOL_MF_STRICT specified (-EIO) or
+ * memory range specified by nodemask and maxnode points outside
+ * your accessible address space (-EFAULT)
*/
static int
queue_pages_range(struct mm_struct *mm, unsigned long start, unsigned long end,
@@ -1286,7 +1288,7 @@ static long do_mbind(unsigned long start, unsigned long len,
flags | MPOL_MF_INVERT, &pagelist);
if (ret < 0) {
- err = -EIO;
+ err = ret;
goto up_out;
}
@@ -1305,10 +1307,12 @@ static long do_mbind(unsigned long start, unsigned long len,
if ((ret > 0) || (nr_failed && (flags & MPOL_MF_STRICT)))
err = -EIO;
- } else
- putback_movable_pages(&pagelist);
-
+ } else {
up_out:
+ if (!list_empty(&pagelist))
+ putback_movable_pages(&pagelist);
+ }
+
up_write(&mm->mmap_sem);
mpol_out:
mpol_put(new);
diff --git a/mm/mmu_notifier.c b/mm/mmu_notifier.c
index 7fde886..9a889e4 100644
--- a/mm/mmu_notifier.c
+++ b/mm/mmu_notifier.c
@@ -180,7 +180,7 @@ int __mmu_notifier_invalidate_range_start(struct mmu_notifier_range *range)
mn->ops->invalidate_range_start, _ret,
!mmu_notifier_range_blockable(range) ? "non-" : "");
WARN_ON(mmu_notifier_range_blockable(range) ||
- ret != -EAGAIN);
+ _ret != -EAGAIN);
ret = _ret;
}
}
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index ecc3dba..f391c0c 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -1948,6 +1948,14 @@ void __init page_alloc_init_late(void)
wait_for_completion(&pgdat_init_all_done_comp);
/*
+ * The number of managed pages has changed due to the initialisation
+ * so the pcpu batch and high limits needs to be updated or the limits
+ * will be artificially small.
+ */
+ for_each_populated_zone(zone)
+ zone_pcp_update(zone);
+
+ /*
* We initialized the rest of the deferred pages. Permanently disable
* on-demand struct page initialization.
*/
@@ -3720,10 +3728,6 @@ get_page_from_freelist(gfp_t gfp_mask, unsigned int order, int alloc_flags,
static void warn_alloc_show_mem(gfp_t gfp_mask, nodemask_t *nodemask)
{
unsigned int filter = SHOW_MEM_FILTER_NODES;
- static DEFINE_RATELIMIT_STATE(show_mem_rs, HZ, 1);
-
- if (!__ratelimit(&show_mem_rs))
- return;
/*
* This documents exceptions given to allocations in certain
@@ -3744,8 +3748,7 @@ void warn_alloc(gfp_t gfp_mask, nodemask_t *nodemask, const char *fmt, ...)
{
struct va_format vaf;
va_list args;
- static DEFINE_RATELIMIT_STATE(nopage_rs, DEFAULT_RATELIMIT_INTERVAL,
- DEFAULT_RATELIMIT_BURST);
+ static DEFINE_RATELIMIT_STATE(nopage_rs, 10*HZ, 1);
if ((gfp_mask & __GFP_NOWARN) || !__ratelimit(&nopage_rs))
return;
@@ -8514,7 +8517,6 @@ void free_contig_range(unsigned long pfn, unsigned int nr_pages)
WARN(count != 0, "%d pages are still in use!\n", count);
}
-#ifdef CONFIG_MEMORY_HOTPLUG
/*
* The zone indicated has a new number of managed_pages; batch sizes and percpu
* page high values need to be recalulated.
@@ -8528,7 +8530,6 @@ void __meminit zone_pcp_update(struct zone *zone)
per_cpu_ptr(zone->pageset, cpu));
mutex_unlock(&pcp_batch_high_lock);
}
-#endif
void zone_pcp_reset(struct zone *zone)
{
diff --git a/mm/page_io.c b/mm/page_io.c
index 24ee600..60a66a5 100644
--- a/mm/page_io.c
+++ b/mm/page_io.c
@@ -73,6 +73,7 @@ static void swap_slot_free_notify(struct page *page)
{
struct swap_info_struct *sis;
struct gendisk *disk;
+ swp_entry_t entry;
/*
* There is no guarantee that the page is in swap cache - the software
@@ -104,11 +105,10 @@ static void swap_slot_free_notify(struct page *page)
* we again wish to reclaim it.
*/
disk = sis->bdev->bd_disk;
- if (disk->fops->swap_slot_free_notify) {
- swp_entry_t entry;
+ entry.val = page_private(page);
+ if (disk->fops->swap_slot_free_notify && __swap_count(entry) == 1) {
unsigned long offset;
- entry.val = page_private(page);
offset = swp_offset(entry);
SetPageDirty(page);
diff --git a/mm/slab.h b/mm/slab.h
index 68e455f..b2b0169 100644
--- a/mm/slab.h
+++ b/mm/slab.h
@@ -323,8 +323,8 @@ static inline struct kmem_cache *memcg_root_cache(struct kmem_cache *s)
* Expects a pointer to a slab page. Please note, that PageSlab() check
* isn't sufficient, as it returns true also for tail compound slab pages,
* which do not have slab_cache pointer set.
- * So this function assumes that the page can pass PageHead() and PageSlab()
- * checks.
+ * So this function assumes that the page can pass PageSlab() && !PageTail()
+ * check.
*
* The kmem_cache can be reparented asynchronously. The caller must ensure
* the memcg lifetime, e.g. by taking rcu_read_lock() or cgroup_mutex.
diff --git a/mm/slub.c b/mm/slub.c
index b25c807..e72e802 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -1433,12 +1433,15 @@ static inline bool slab_free_freelist_hook(struct kmem_cache *s,
void *old_tail = *tail ? *tail : *head;
int rsize;
- if (slab_want_init_on_free(s)) {
- void *p = NULL;
+ /* Head and tail of the reconstructed freelist */
+ *head = NULL;
+ *tail = NULL;
- do {
- object = next;
- next = get_freepointer(s, object);
+ do {
+ object = next;
+ next = get_freepointer(s, object);
+
+ if (slab_want_init_on_free(s)) {
/*
* Clear the object and the metadata, but don't touch
* the redzone.
@@ -1448,29 +1451,8 @@ static inline bool slab_free_freelist_hook(struct kmem_cache *s,
: 0;
memset((char *)object + s->inuse, 0,
s->size - s->inuse - rsize);
- set_freepointer(s, object, p);
- p = object;
- } while (object != old_tail);
- }
-/*
- * Compiler cannot detect this function can be removed if slab_free_hook()
- * evaluates to nothing. Thus, catch all relevant config debug options here.
- */
-#if defined(CONFIG_LOCKDEP) || \
- defined(CONFIG_DEBUG_KMEMLEAK) || \
- defined(CONFIG_DEBUG_OBJECTS_FREE) || \
- defined(CONFIG_KASAN)
-
- next = *head;
-
- /* Head and tail of the reconstructed freelist */
- *head = NULL;
- *tail = NULL;
-
- do {
- object = next;
- next = get_freepointer(s, object);
+ }
/* If object's reuse doesn't have to be delayed */
if (!slab_free_hook(s, object)) {
/* Move object to the new freelist */
@@ -1485,9 +1467,6 @@ static inline bool slab_free_freelist_hook(struct kmem_cache *s,
*tail = NULL;
return *head != NULL;
-#else
- return true;
-#endif
}
static void *setup_object(struct kmem_cache *s, struct page *page,
diff --git a/mm/vmstat.c b/mm/vmstat.c
index 6afc892..a822204 100644
--- a/mm/vmstat.c
+++ b/mm/vmstat.c
@@ -1383,12 +1383,29 @@ static void pagetypeinfo_showfree_print(struct seq_file *m,
unsigned long freecount = 0;
struct free_area *area;
struct list_head *curr;
+ bool overflow = false;
area = &(zone->free_area[order]);
- list_for_each(curr, &area->free_list[mtype])
- freecount++;
- seq_printf(m, "%6lu ", freecount);
+ list_for_each(curr, &area->free_list[mtype]) {
+ /*
+ * Cap the free_list iteration because it might
+ * be really large and we are under a spinlock
+ * so a long time spent here could trigger a
+ * hard lockup detector. Anyway this is a
+ * debugging tool so knowing there is a handful
+ * of pages of this order should be more than
+ * sufficient.
+ */
+ if (++freecount >= 100000) {
+ overflow = true;
+ break;
+ }
+ }
+ seq_printf(m, "%s%6lu ", overflow ? ">" : "", freecount);
+ spin_unlock_irq(&zone->lock);
+ cond_resched();
+ spin_lock_irq(&zone->lock);
}
seq_putc(m, '\n');
}
@@ -1972,7 +1989,7 @@ void __init init_mm_internals(void)
#endif
#ifdef CONFIG_PROC_FS
proc_create_seq("buddyinfo", 0444, NULL, &fragmentation_op);
- proc_create_seq("pagetypeinfo", 0444, NULL, &pagetypeinfo_op);
+ proc_create_seq("pagetypeinfo", 0400, NULL, &pagetypeinfo_op);
proc_create_seq("vmstat", 0444, NULL, &vmstat_op);
proc_create_seq("zoneinfo", 0444, NULL, &zoneinfo_op);
#endif
diff --git a/net/bridge/netfilter/ebt_dnat.c b/net/bridge/netfilter/ebt_dnat.c
index ed91ea3..12a4f4d 100644
--- a/net/bridge/netfilter/ebt_dnat.c
+++ b/net/bridge/netfilter/ebt_dnat.c
@@ -20,7 +20,6 @@ static unsigned int
ebt_dnat_tg(struct sk_buff *skb, const struct xt_action_param *par)
{
const struct ebt_nat_info *info = par->targinfo;
- struct net_device *dev;
if (skb_ensure_writable(skb, ETH_ALEN))
return EBT_DROP;
@@ -33,10 +32,22 @@ ebt_dnat_tg(struct sk_buff *skb, const struct xt_action_param *par)
else
skb->pkt_type = PACKET_MULTICAST;
} else {
- if (xt_hooknum(par) != NF_BR_BROUTING)
- dev = br_port_get_rcu(xt_in(par))->br->dev;
- else
+ const struct net_device *dev;
+
+ switch (xt_hooknum(par)) {
+ case NF_BR_BROUTING:
dev = xt_in(par);
+ break;
+ case NF_BR_PRE_ROUTING:
+ dev = br_port_get_rcu(xt_in(par))->br->dev;
+ break;
+ default:
+ dev = NULL;
+ break;
+ }
+
+ if (!dev) /* NF_BR_LOCAL_OUT */
+ return info->target;
if (ether_addr_equal(info->mac, dev->dev_addr))
skb->pkt_type = PACKET_HOST;
diff --git a/net/can/af_can.c b/net/can/af_can.c
index 5518a7d9..128d37a 100644
--- a/net/can/af_can.c
+++ b/net/can/af_can.c
@@ -86,11 +86,12 @@ static atomic_t skbcounter = ATOMIC_INIT(0);
/* af_can socket functions */
-static void can_sock_destruct(struct sock *sk)
+void can_sock_destruct(struct sock *sk)
{
skb_queue_purge(&sk->sk_receive_queue);
skb_queue_purge(&sk->sk_error_queue);
}
+EXPORT_SYMBOL(can_sock_destruct);
static const struct can_proto *can_get_proto(int protocol)
{
diff --git a/net/can/j1939/main.c b/net/can/j1939/main.c
index def2f81..137054b 100644
--- a/net/can/j1939/main.c
+++ b/net/can/j1939/main.c
@@ -51,6 +51,7 @@ static void j1939_can_recv(struct sk_buff *iskb, void *data)
if (!skb)
return;
+ j1939_priv_get(priv);
can_skb_set_owner(skb, iskb->sk);
/* get a pointer to the header of the skb
@@ -104,6 +105,7 @@ static void j1939_can_recv(struct sk_buff *iskb, void *data)
j1939_simple_recv(priv, skb);
j1939_sk_recv(priv, skb);
done:
+ j1939_priv_put(priv);
kfree_skb(skb);
}
@@ -150,6 +152,10 @@ static void __j1939_priv_release(struct kref *kref)
netdev_dbg(priv->ndev, "%s: 0x%p\n", __func__, priv);
+ WARN_ON_ONCE(!list_empty(&priv->active_session_list));
+ WARN_ON_ONCE(!list_empty(&priv->ecus));
+ WARN_ON_ONCE(!list_empty(&priv->j1939_socks));
+
dev_put(ndev);
kfree(priv);
}
@@ -207,6 +213,9 @@ static inline struct j1939_priv *j1939_ndev_to_priv(struct net_device *ndev)
{
struct can_ml_priv *can_ml_priv = ndev->ml_priv;
+ if (!can_ml_priv)
+ return NULL;
+
return can_ml_priv->j1939_priv;
}
diff --git a/net/can/j1939/socket.c b/net/can/j1939/socket.c
index 37c1040..de09b0a 100644
--- a/net/can/j1939/socket.c
+++ b/net/can/j1939/socket.c
@@ -78,7 +78,6 @@ static void j1939_jsk_add(struct j1939_priv *priv, struct j1939_sock *jsk)
{
jsk->state |= J1939_SOCK_BOUND;
j1939_priv_get(priv);
- jsk->priv = priv;
spin_lock_bh(&priv->j1939_socks_lock);
list_add_tail(&jsk->list, &priv->j1939_socks);
@@ -91,7 +90,6 @@ static void j1939_jsk_del(struct j1939_priv *priv, struct j1939_sock *jsk)
list_del_init(&jsk->list);
spin_unlock_bh(&priv->j1939_socks_lock);
- jsk->priv = NULL;
j1939_priv_put(priv);
jsk->state &= ~J1939_SOCK_BOUND;
}
@@ -349,6 +347,34 @@ void j1939_sk_recv(struct j1939_priv *priv, struct sk_buff *skb)
spin_unlock_bh(&priv->j1939_socks_lock);
}
+static void j1939_sk_sock_destruct(struct sock *sk)
+{
+ struct j1939_sock *jsk = j1939_sk(sk);
+
+ /* This function will be call by the generic networking code, when then
+ * the socket is ultimately closed (sk->sk_destruct).
+ *
+ * The race between
+ * - processing a received CAN frame
+ * (can_receive -> j1939_can_recv)
+ * and accessing j1939_priv
+ * ... and ...
+ * - closing a socket
+ * (j1939_can_rx_unregister -> can_rx_unregister)
+ * and calling the final j1939_priv_put()
+ *
+ * is avoided by calling the final j1939_priv_put() from this
+ * RCU deferred cleanup call.
+ */
+ if (jsk->priv) {
+ j1939_priv_put(jsk->priv);
+ jsk->priv = NULL;
+ }
+
+ /* call generic CAN sock destruct */
+ can_sock_destruct(sk);
+}
+
static int j1939_sk_init(struct sock *sk)
{
struct j1939_sock *jsk = j1939_sk(sk);
@@ -371,6 +397,7 @@ static int j1939_sk_init(struct sock *sk)
atomic_set(&jsk->skb_pending, 0);
spin_lock_init(&jsk->sk_session_queue_lock);
INIT_LIST_HEAD(&jsk->sk_session_queue);
+ sk->sk_destruct = j1939_sk_sock_destruct;
return 0;
}
@@ -443,6 +470,12 @@ static int j1939_sk_bind(struct socket *sock, struct sockaddr *uaddr, int len)
}
jsk->ifindex = addr->can_ifindex;
+
+ /* the corresponding j1939_priv_put() is called via
+ * sk->sk_destruct, which points to j1939_sk_sock_destruct()
+ */
+ j1939_priv_get(priv);
+ jsk->priv = priv;
}
/* set default transmit pgn */
@@ -560,8 +593,8 @@ static int j1939_sk_release(struct socket *sock)
if (!sk)
return 0;
- jsk = j1939_sk(sk);
lock_sock(sk);
+ jsk = j1939_sk(sk);
if (jsk->state & J1939_SOCK_BOUND) {
struct j1939_priv *priv = jsk->priv;
@@ -580,6 +613,7 @@ static int j1939_sk_release(struct socket *sock)
j1939_netdev_stop(priv);
}
+ kfree(jsk->filters);
sock_orphan(sk);
sock->sk = NULL;
@@ -909,8 +943,10 @@ void j1939_sk_errqueue(struct j1939_session *session,
memset(serr, 0, sizeof(*serr));
switch (type) {
case J1939_ERRQUEUE_ACK:
- if (!(sk->sk_tsflags & SOF_TIMESTAMPING_TX_ACK))
+ if (!(sk->sk_tsflags & SOF_TIMESTAMPING_TX_ACK)) {
+ kfree_skb(skb);
return;
+ }
serr->ee.ee_errno = ENOMSG;
serr->ee.ee_origin = SO_EE_ORIGIN_TIMESTAMPING;
@@ -918,8 +954,10 @@ void j1939_sk_errqueue(struct j1939_session *session,
state = "ACK";
break;
case J1939_ERRQUEUE_SCHED:
- if (!(sk->sk_tsflags & SOF_TIMESTAMPING_TX_SCHED))
+ if (!(sk->sk_tsflags & SOF_TIMESTAMPING_TX_SCHED)) {
+ kfree_skb(skb);
return;
+ }
serr->ee.ee_errno = ENOMSG;
serr->ee.ee_origin = SO_EE_ORIGIN_TIMESTAMPING;
@@ -1054,51 +1092,72 @@ static int j1939_sk_sendmsg(struct socket *sock, struct msghdr *msg,
{
struct sock *sk = sock->sk;
struct j1939_sock *jsk = j1939_sk(sk);
- struct j1939_priv *priv = jsk->priv;
+ struct j1939_priv *priv;
int ifindex;
int ret;
+ lock_sock(sock->sk);
/* various socket state tests */
- if (!(jsk->state & J1939_SOCK_BOUND))
- return -EBADFD;
+ if (!(jsk->state & J1939_SOCK_BOUND)) {
+ ret = -EBADFD;
+ goto sendmsg_done;
+ }
+ priv = jsk->priv;
ifindex = jsk->ifindex;
- if (!jsk->addr.src_name && jsk->addr.sa == J1939_NO_ADDR)
+ if (!jsk->addr.src_name && jsk->addr.sa == J1939_NO_ADDR) {
/* no source address assigned yet */
- return -EBADFD;
+ ret = -EBADFD;
+ goto sendmsg_done;
+ }
/* deal with provided destination address info */
if (msg->msg_name) {
struct sockaddr_can *addr = msg->msg_name;
- if (msg->msg_namelen < J1939_MIN_NAMELEN)
- return -EINVAL;
+ if (msg->msg_namelen < J1939_MIN_NAMELEN) {
+ ret = -EINVAL;
+ goto sendmsg_done;
+ }
- if (addr->can_family != AF_CAN)
- return -EINVAL;
+ if (addr->can_family != AF_CAN) {
+ ret = -EINVAL;
+ goto sendmsg_done;
+ }
- if (addr->can_ifindex && addr->can_ifindex != ifindex)
- return -EBADFD;
+ if (addr->can_ifindex && addr->can_ifindex != ifindex) {
+ ret = -EBADFD;
+ goto sendmsg_done;
+ }
if (j1939_pgn_is_valid(addr->can_addr.j1939.pgn) &&
- !j1939_pgn_is_clean_pdu(addr->can_addr.j1939.pgn))
- return -EINVAL;
+ !j1939_pgn_is_clean_pdu(addr->can_addr.j1939.pgn)) {
+ ret = -EINVAL;
+ goto sendmsg_done;
+ }
if (!addr->can_addr.j1939.name &&
addr->can_addr.j1939.addr == J1939_NO_ADDR &&
- !sock_flag(sk, SOCK_BROADCAST))
+ !sock_flag(sk, SOCK_BROADCAST)) {
/* broadcast, but SO_BROADCAST not set */
- return -EACCES;
+ ret = -EACCES;
+ goto sendmsg_done;
+ }
} else {
if (!jsk->addr.dst_name && jsk->addr.da == J1939_NO_ADDR &&
- !sock_flag(sk, SOCK_BROADCAST))
+ !sock_flag(sk, SOCK_BROADCAST)) {
/* broadcast, but SO_BROADCAST not set */
- return -EACCES;
+ ret = -EACCES;
+ goto sendmsg_done;
+ }
}
ret = j1939_sk_send_loop(priv, sk, msg, size);
+sendmsg_done:
+ release_sock(sock->sk);
+
return ret;
}
diff --git a/net/can/j1939/transport.c b/net/can/j1939/transport.c
index fe000ea..9f99af5 100644
--- a/net/can/j1939/transport.c
+++ b/net/can/j1939/transport.c
@@ -255,6 +255,7 @@ static void __j1939_session_drop(struct j1939_session *session)
return;
j1939_sock_pending_del(session->sk);
+ sock_put(session->sk);
}
static void j1939_session_destroy(struct j1939_session *session)
@@ -266,6 +267,9 @@ static void j1939_session_destroy(struct j1939_session *session)
netdev_dbg(session->priv->ndev, "%s: 0x%p\n", __func__, session);
+ WARN_ON_ONCE(!list_empty(&session->sk_session_queue_entry));
+ WARN_ON_ONCE(!list_empty(&session->active_session_list_entry));
+
skb_queue_purge(&session->skb_queue);
__j1939_session_drop(session);
j1939_priv_put(session->priv);
@@ -1042,12 +1046,13 @@ j1939_session_deactivate_activate_next(struct j1939_session *session)
j1939_sk_queue_activate_next(session);
}
-static void j1939_session_cancel(struct j1939_session *session,
+static void __j1939_session_cancel(struct j1939_session *session,
enum j1939_xtp_abort err)
{
struct j1939_priv *priv = session->priv;
WARN_ON_ONCE(!err);
+ lockdep_assert_held(&session->priv->active_session_list_lock);
session->err = j1939_xtp_abort_to_errno(priv, err);
/* do not send aborts on incoming broadcasts */
@@ -1062,6 +1067,20 @@ static void j1939_session_cancel(struct j1939_session *session,
j1939_sk_send_loop_abort(session->sk, session->err);
}
+static void j1939_session_cancel(struct j1939_session *session,
+ enum j1939_xtp_abort err)
+{
+ j1939_session_list_lock(session->priv);
+
+ if (session->state >= J1939_SESSION_ACTIVE &&
+ session->state < J1939_SESSION_WAITING_ABORT) {
+ j1939_tp_set_rxtimeout(session, J1939_XTP_ABORT_TIMEOUT_MS);
+ __j1939_session_cancel(session, err);
+ }
+
+ j1939_session_list_unlock(session->priv);
+}
+
static enum hrtimer_restart j1939_tp_txtimer(struct hrtimer *hrtimer)
{
struct j1939_session *session =
@@ -1108,8 +1127,6 @@ static enum hrtimer_restart j1939_tp_txtimer(struct hrtimer *hrtimer)
netdev_alert(priv->ndev, "%s: 0x%p: tx aborted with unknown reason: %i\n",
__func__, session, ret);
if (session->skcb.addr.type != J1939_SIMPLE) {
- j1939_tp_set_rxtimeout(session,
- J1939_XTP_ABORT_TIMEOUT_MS);
j1939_session_cancel(session, J1939_XTP_ABORT_OTHER);
} else {
session->err = ret;
@@ -1169,7 +1186,7 @@ static enum hrtimer_restart j1939_tp_rxtimer(struct hrtimer *hrtimer)
hrtimer_start(&session->rxtimer,
ms_to_ktime(J1939_XTP_ABORT_TIMEOUT_MS),
HRTIMER_MODE_REL_SOFT);
- j1939_session_cancel(session, J1939_XTP_ABORT_TIMEOUT);
+ __j1939_session_cancel(session, J1939_XTP_ABORT_TIMEOUT);
}
j1939_session_list_unlock(session->priv);
}
@@ -1273,9 +1290,27 @@ j1939_xtp_rx_abort(struct j1939_priv *priv, struct sk_buff *skb,
static void
j1939_xtp_rx_eoma_one(struct j1939_session *session, struct sk_buff *skb)
{
+ struct j1939_sk_buff_cb *skcb = j1939_skb_to_cb(skb);
+ const u8 *dat;
+ int len;
+
if (j1939_xtp_rx_cmd_bad_pgn(session, skb))
return;
+ dat = skb->data;
+
+ if (skcb->addr.type == J1939_ETP)
+ len = j1939_etp_ctl_to_size(dat);
+ else
+ len = j1939_tp_ctl_to_size(dat);
+
+ if (session->total_message_size != len) {
+ netdev_warn_once(session->priv->ndev,
+ "%s: 0x%p: Incorrect size. Expected: %i; got: %i.\n",
+ __func__, session, session->total_message_size,
+ len);
+ }
+
netdev_dbg(session->priv->ndev, "%s: 0x%p\n", __func__, session);
session->pkt.tx_acked = session->pkt.total;
@@ -1357,7 +1392,6 @@ j1939_xtp_rx_cts_one(struct j1939_session *session, struct sk_buff *skb)
out_session_cancel:
j1939_session_timers_cancel(session);
- j1939_tp_set_rxtimeout(session, J1939_XTP_ABORT_TIMEOUT_MS);
j1939_session_cancel(session, err);
}
@@ -1432,7 +1466,7 @@ j1939_session *j1939_session_fresh_new(struct j1939_priv *priv,
skcb = j1939_skb_to_cb(skb);
memcpy(skcb, rel_skcb, sizeof(*skcb));
- session = j1939_session_new(priv, skb, skb->len);
+ session = j1939_session_new(priv, skb, size);
if (!session) {
kfree_skb(skb);
return NULL;
@@ -1554,7 +1588,6 @@ static int j1939_xtp_rx_rts_session_active(struct j1939_session *session,
/* RTS on active session */
j1939_session_timers_cancel(session);
- j1939_tp_set_rxtimeout(session, J1939_XTP_ABORT_TIMEOUT_MS);
j1939_session_cancel(session, J1939_XTP_ABORT_BUSY);
}
@@ -1565,7 +1598,6 @@ static int j1939_xtp_rx_rts_session_active(struct j1939_session *session,
session->last_cmd);
j1939_session_timers_cancel(session);
- j1939_tp_set_rxtimeout(session, J1939_XTP_ABORT_TIMEOUT_MS);
j1939_session_cancel(session, J1939_XTP_ABORT_BUSY);
return -EBUSY;
@@ -1767,7 +1799,6 @@ static void j1939_xtp_rx_dat_one(struct j1939_session *session,
out_session_cancel:
j1939_session_timers_cancel(session);
- j1939_tp_set_rxtimeout(session, J1939_XTP_ABORT_TIMEOUT_MS);
j1939_session_cancel(session, J1939_XTP_ABORT_FAULT);
j1939_session_put(session);
}
@@ -1848,6 +1879,7 @@ struct j1939_session *j1939_tp_send(struct j1939_priv *priv,
return ERR_PTR(-ENOMEM);
/* skb is recounted in j1939_session_new() */
+ sock_hold(skb->sk);
session->sk = skb->sk;
session->transmission = true;
session->pkt.total = (size + 6) / 7;
@@ -2010,7 +2042,11 @@ int j1939_cancel_active_session(struct j1939_priv *priv, struct sock *sk)
&priv->active_session_list,
active_session_list_entry) {
if (!sk || sk == session->sk) {
- j1939_session_timers_cancel(session);
+ if (hrtimer_try_to_cancel(&session->txtimer) == 1)
+ j1939_session_put(session);
+ if (hrtimer_try_to_cancel(&session->rxtimer) == 1)
+ j1939_session_put(session);
+
session->err = ESHUTDOWN;
j1939_session_deactivate_locked(session);
}
diff --git a/net/core/devlink.c b/net/core/devlink.c
index f80151e..93905dc 100644
--- a/net/core/devlink.c
+++ b/net/core/devlink.c
@@ -2699,7 +2699,7 @@ static int devlink_nl_cmd_reload(struct sk_buff *skb, struct genl_info *info)
struct devlink *devlink = info->user_ptr[0];
int err;
- if (!devlink_reload_supported(devlink))
+ if (!devlink_reload_supported(devlink) || !devlink->reload_enabled)
return -EOPNOTSUPP;
err = devlink_resources_validate(devlink, NULL, info);
@@ -4618,6 +4618,7 @@ struct devlink_health_reporter {
bool auto_recover;
u8 health_state;
u64 dump_ts;
+ u64 dump_real_ts;
u64 error_count;
u64 recovery_count;
u64 last_recovery_ts;
@@ -4790,6 +4791,7 @@ static int devlink_health_do_dump(struct devlink_health_reporter *reporter,
goto dump_err;
reporter->dump_ts = jiffies;
+ reporter->dump_real_ts = ktime_get_real_ns();
return 0;
@@ -4952,6 +4954,10 @@ devlink_nl_health_reporter_fill(struct sk_buff *msg,
jiffies_to_msecs(reporter->dump_ts),
DEVLINK_ATTR_PAD))
goto reporter_nest_cancel;
+ if (reporter->dump_fmsg &&
+ nla_put_u64_64bit(msg, DEVLINK_ATTR_HEALTH_REPORTER_DUMP_TS_NS,
+ reporter->dump_real_ts, DEVLINK_ATTR_PAD))
+ goto reporter_nest_cancel;
nla_nest_end(msg, reporter_attr);
genlmsg_end(msg, hdr);
@@ -6196,6 +6202,8 @@ EXPORT_SYMBOL_GPL(devlink_register);
void devlink_unregister(struct devlink *devlink)
{
mutex_lock(&devlink_mutex);
+ WARN_ON(devlink_reload_supported(devlink) &&
+ devlink->reload_enabled);
devlink_notify(devlink, DEVLINK_CMD_DEL);
list_del(&devlink->list);
mutex_unlock(&devlink_mutex);
@@ -6203,6 +6211,41 @@ void devlink_unregister(struct devlink *devlink)
EXPORT_SYMBOL_GPL(devlink_unregister);
/**
+ * devlink_reload_enable - Enable reload of devlink instance
+ *
+ * @devlink: devlink
+ *
+ * Should be called at end of device initialization
+ * process when reload operation is supported.
+ */
+void devlink_reload_enable(struct devlink *devlink)
+{
+ mutex_lock(&devlink_mutex);
+ devlink->reload_enabled = true;
+ mutex_unlock(&devlink_mutex);
+}
+EXPORT_SYMBOL_GPL(devlink_reload_enable);
+
+/**
+ * devlink_reload_disable - Disable reload of devlink instance
+ *
+ * @devlink: devlink
+ *
+ * Should be called at the beginning of device cleanup
+ * process when reload operation is supported.
+ */
+void devlink_reload_disable(struct devlink *devlink)
+{
+ mutex_lock(&devlink_mutex);
+ /* Mutex is taken which ensures that no reload operation is in
+ * progress while setting up forbidded flag.
+ */
+ devlink->reload_enabled = false;
+ mutex_unlock(&devlink_mutex);
+}
+EXPORT_SYMBOL_GPL(devlink_reload_disable);
+
+/**
* devlink_free - Free devlink instance resources
*
* @devlink: devlink
diff --git a/net/core/skmsg.c b/net/core/skmsg.c
index cf390e0..ad31e4e 100644
--- a/net/core/skmsg.c
+++ b/net/core/skmsg.c
@@ -270,18 +270,28 @@ void sk_msg_trim(struct sock *sk, struct sk_msg *msg, int len)
msg->sg.data[i].length -= trim;
sk_mem_uncharge(sk, trim);
+ /* Adjust copybreak if it falls into the trimmed part of last buf */
+ if (msg->sg.curr == i && msg->sg.copybreak > msg->sg.data[i].length)
+ msg->sg.copybreak = msg->sg.data[i].length;
out:
- /* If we trim data before curr pointer update copybreak and current
- * so that any future copy operations start at new copy location.
+ sk_msg_iter_var_next(i);
+ msg->sg.end = i;
+
+ /* If we trim data a full sg elem before curr pointer update
+ * copybreak and current so that any future copy operations
+ * start at new copy location.
* However trimed data that has not yet been used in a copy op
* does not require an update.
*/
- if (msg->sg.curr >= i) {
+ if (!msg->sg.size) {
+ msg->sg.curr = msg->sg.start;
+ msg->sg.copybreak = 0;
+ } else if (sk_msg_iter_dist(msg->sg.start, msg->sg.curr) >=
+ sk_msg_iter_dist(msg->sg.start, msg->sg.end)) {
+ sk_msg_iter_var_prev(i);
msg->sg.curr = i;
msg->sg.copybreak = msg->sg.data[i].length;
}
- sk_msg_iter_var_next(i);
- msg->sg.end = i;
}
EXPORT_SYMBOL_GPL(sk_msg_trim);
diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c
index 0d8f782..d19557c 100644
--- a/net/dccp/ipv4.c
+++ b/net/dccp/ipv4.c
@@ -416,7 +416,7 @@ struct sock *dccp_v4_request_recv_sock(const struct sock *sk,
RCU_INIT_POINTER(newinet->inet_opt, rcu_dereference(ireq->ireq_opt));
newinet->mc_index = inet_iif(skb);
newinet->mc_ttl = ip_hdr(skb)->ttl;
- newinet->inet_id = jiffies;
+ newinet->inet_id = prandom_u32();
if (dst == NULL && (dst = inet_csk_route_child_sock(sk, newsk, req)) == NULL)
goto put_and_exit;
diff --git a/net/dsa/tag_8021q.c b/net/dsa/tag_8021q.c
index 9c1cc24..9e5a883 100644
--- a/net/dsa/tag_8021q.c
+++ b/net/dsa/tag_8021q.c
@@ -106,7 +106,7 @@ static int dsa_8021q_restore_pvid(struct dsa_switch *ds, int port)
slave = ds->ports[port].slave;
err = br_vlan_get_pvid(slave, &pvid);
- if (err < 0)
+ if (!pvid || err < 0)
/* There is no pvid on the bridge for this port, which is
* perfectly valid. Nothing to restore, bye-bye!
*/
diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c
index 0913a09..f1888c6 100644
--- a/net/ipv4/fib_semantics.c
+++ b/net/ipv4/fib_semantics.c
@@ -1814,8 +1814,8 @@ int fib_sync_down_addr(struct net_device *dev, __be32 local)
int ret = 0;
unsigned int hash = fib_laddr_hashfn(local);
struct hlist_head *head = &fib_info_laddrhash[hash];
+ int tb_id = l3mdev_fib_table(dev) ? : RT_TABLE_MAIN;
struct net *net = dev_net(dev);
- int tb_id = l3mdev_fib_table(dev);
struct fib_info *fi;
if (!fib_info_laddrhash || local == 0)
diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
index 716d547..5800743 100644
--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -2289,7 +2289,8 @@ int ipmr_get_route(struct net *net, struct sk_buff *skb,
rcu_read_unlock();
return -ENODEV;
}
- skb2 = skb_clone(skb, GFP_ATOMIC);
+
+ skb2 = skb_realloc_headroom(skb, sizeof(struct iphdr));
if (!skb2) {
read_unlock(&mrt_lock);
rcu_read_unlock();
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index a63ff85..e60bf8e 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -621,6 +621,7 @@ static void rt6_probe(struct fib6_nh *fib6_nh)
{
struct __rt6_probe_work *work = NULL;
const struct in6_addr *nh_gw;
+ unsigned long last_probe;
struct neighbour *neigh;
struct net_device *dev;
struct inet6_dev *idev;
@@ -639,6 +640,7 @@ static void rt6_probe(struct fib6_nh *fib6_nh)
nh_gw = &fib6_nh->fib_nh_gw6;
dev = fib6_nh->fib_nh_dev;
rcu_read_lock_bh();
+ last_probe = READ_ONCE(fib6_nh->last_probe);
idev = __in6_dev_get(dev);
neigh = __ipv6_neigh_lookup_noref(dev, nh_gw);
if (neigh) {
@@ -654,13 +656,15 @@ static void rt6_probe(struct fib6_nh *fib6_nh)
__neigh_set_probe_once(neigh);
}
write_unlock(&neigh->lock);
- } else if (time_after(jiffies, fib6_nh->last_probe +
+ } else if (time_after(jiffies, last_probe +
idev->cnf.rtr_probe_interval)) {
work = kmalloc(sizeof(*work), GFP_ATOMIC);
}
- if (work) {
- fib6_nh->last_probe = jiffies;
+ if (!work || cmpxchg(&fib6_nh->last_probe,
+ last_probe, jiffies) != last_probe) {
+ kfree(work);
+ } else {
INIT_WORK(&work->work, rt6_probe_deferred);
work->target = *nh_gw;
dev_hold(dev);
@@ -3383,6 +3387,9 @@ int fib6_nh_init(struct net *net, struct fib6_nh *fib6_nh,
int err;
fib6_nh->fib_nh_family = AF_INET6;
+#ifdef CONFIG_IPV6_ROUTER_PREF
+ fib6_nh->last_probe = jiffies;
+#endif
err = -ENODEV;
if (cfg->fc_ifindex) {
diff --git a/net/ipv6/seg6_local.c b/net/ipv6/seg6_local.c
index 9d4f75e..e705674 100644
--- a/net/ipv6/seg6_local.c
+++ b/net/ipv6/seg6_local.c
@@ -81,6 +81,11 @@ static struct ipv6_sr_hdr *get_srh(struct sk_buff *skb)
if (!pskb_may_pull(skb, srhoff + len))
return NULL;
+ /* note that pskb_may_pull may change pointers in header;
+ * for this reason it is necessary to reload them when needed.
+ */
+ srh = (struct ipv6_sr_hdr *)(skb->data + srhoff);
+
if (!seg6_validate_srh(srh, len))
return NULL;
@@ -336,6 +341,8 @@ static int input_action_end_dx6(struct sk_buff *skb,
if (!ipv6_addr_any(&slwt->nh6))
nhaddr = &slwt->nh6;
+ skb_set_transport_header(skb, sizeof(struct ipv6hdr));
+
seg6_lookup_nexthop(skb, nhaddr, 0);
return dst_input(skb);
@@ -365,6 +372,8 @@ static int input_action_end_dx4(struct sk_buff *skb,
skb_dst_drop(skb);
+ skb_set_transport_header(skb, sizeof(struct iphdr));
+
err = ip_route_input(skb, nhaddr, iph->saddr, 0, skb->dev);
if (err)
goto drop;
@@ -385,6 +394,8 @@ static int input_action_end_dt6(struct sk_buff *skb,
if (!pskb_may_pull(skb, sizeof(struct ipv6hdr)))
goto drop;
+ skb_set_transport_header(skb, sizeof(struct ipv6hdr));
+
seg6_lookup_nexthop(skb, NULL, slwt->table);
return dst_input(skb);
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index aba094b..2d05c4c 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -1292,8 +1292,8 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
ieee80211_remove_interfaces(local);
fail_rate:
rtnl_unlock();
- ieee80211_led_exit(local);
fail_flows:
+ ieee80211_led_exit(local);
destroy_workqueue(local->workqueue);
fail_workqueue:
wiphy_unregister(local->hw.wiphy);
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c
index bd11fef..8d3a238 100644
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -2457,7 +2457,8 @@ unsigned long ieee80211_sta_last_active(struct sta_info *sta)
{
struct ieee80211_sta_rx_stats *stats = sta_get_last_rx_stats(sta);
- if (time_after(stats->last_rx, sta->status_stats.last_ack))
+ if (!sta->status_stats.last_ack ||
+ time_after(stats->last_rx, sta->status_stats.last_ack))
return stats->last_rx;
return sta->status_stats.last_ack;
}
diff --git a/net/netfilter/ipset/ip_set_core.c b/net/netfilter/ipset/ip_set_core.c
index e64d5f9..d73d182 100644
--- a/net/netfilter/ipset/ip_set_core.c
+++ b/net/netfilter/ipset/ip_set_core.c
@@ -296,7 +296,8 @@ ip_set_get_ipaddr4(struct nlattr *nla, __be32 *ipaddr)
if (unlikely(!flag_nested(nla)))
return -IPSET_ERR_PROTOCOL;
- if (nla_parse_nested_deprecated(tb, IPSET_ATTR_IPADDR_MAX, nla, ipaddr_policy, NULL))
+ if (nla_parse_nested(tb, IPSET_ATTR_IPADDR_MAX, nla,
+ ipaddr_policy, NULL))
return -IPSET_ERR_PROTOCOL;
if (unlikely(!ip_set_attr_netorder(tb, IPSET_ATTR_IPADDR_IPV4)))
return -IPSET_ERR_PROTOCOL;
@@ -314,7 +315,8 @@ ip_set_get_ipaddr6(struct nlattr *nla, union nf_inet_addr *ipaddr)
if (unlikely(!flag_nested(nla)))
return -IPSET_ERR_PROTOCOL;
- if (nla_parse_nested_deprecated(tb, IPSET_ATTR_IPADDR_MAX, nla, ipaddr_policy, NULL))
+ if (nla_parse_nested(tb, IPSET_ATTR_IPADDR_MAX, nla,
+ ipaddr_policy, NULL))
return -IPSET_ERR_PROTOCOL;
if (unlikely(!ip_set_attr_netorder(tb, IPSET_ATTR_IPADDR_IPV6)))
return -IPSET_ERR_PROTOCOL;
@@ -934,7 +936,8 @@ static int ip_set_create(struct net *net, struct sock *ctnl,
/* Without holding any locks, create private part. */
if (attr[IPSET_ATTR_DATA] &&
- nla_parse_nested_deprecated(tb, IPSET_ATTR_CREATE_MAX, attr[IPSET_ATTR_DATA], set->type->create_policy, NULL)) {
+ nla_parse_nested(tb, IPSET_ATTR_CREATE_MAX, attr[IPSET_ATTR_DATA],
+ set->type->create_policy, NULL)) {
ret = -IPSET_ERR_PROTOCOL;
goto put_out;
}
@@ -1281,6 +1284,14 @@ dump_attrs(struct nlmsghdr *nlh)
}
}
+static const struct nla_policy
+ip_set_dump_policy[IPSET_ATTR_CMD_MAX + 1] = {
+ [IPSET_ATTR_PROTOCOL] = { .type = NLA_U8 },
+ [IPSET_ATTR_SETNAME] = { .type = NLA_NUL_STRING,
+ .len = IPSET_MAXNAMELEN - 1 },
+ [IPSET_ATTR_FLAGS] = { .type = NLA_U32 },
+};
+
static int
dump_init(struct netlink_callback *cb, struct ip_set_net *inst)
{
@@ -1292,9 +1303,9 @@ dump_init(struct netlink_callback *cb, struct ip_set_net *inst)
ip_set_id_t index;
int ret;
- ret = nla_parse_deprecated(cda, IPSET_ATTR_CMD_MAX, attr,
- nlh->nlmsg_len - min_len,
- ip_set_setname_policy, NULL);
+ ret = nla_parse(cda, IPSET_ATTR_CMD_MAX, attr,
+ nlh->nlmsg_len - min_len,
+ ip_set_dump_policy, NULL);
if (ret)
return ret;
@@ -1543,9 +1554,9 @@ call_ad(struct sock *ctnl, struct sk_buff *skb, struct ip_set *set,
memcpy(&errmsg->msg, nlh, nlh->nlmsg_len);
cmdattr = (void *)&errmsg->msg + min_len;
- ret = nla_parse_deprecated(cda, IPSET_ATTR_CMD_MAX, cmdattr,
- nlh->nlmsg_len - min_len,
- ip_set_adt_policy, NULL);
+ ret = nla_parse(cda, IPSET_ATTR_CMD_MAX, cmdattr,
+ nlh->nlmsg_len - min_len, ip_set_adt_policy,
+ NULL);
if (ret) {
nlmsg_free(skb2);
@@ -1596,7 +1607,9 @@ static int ip_set_ad(struct net *net, struct sock *ctnl,
use_lineno = !!attr[IPSET_ATTR_LINENO];
if (attr[IPSET_ATTR_DATA]) {
- if (nla_parse_nested_deprecated(tb, IPSET_ATTR_ADT_MAX, attr[IPSET_ATTR_DATA], set->type->adt_policy, NULL))
+ if (nla_parse_nested(tb, IPSET_ATTR_ADT_MAX,
+ attr[IPSET_ATTR_DATA],
+ set->type->adt_policy, NULL))
return -IPSET_ERR_PROTOCOL;
ret = call_ad(ctnl, skb, set, tb, adt, flags,
use_lineno);
@@ -1606,7 +1619,8 @@ static int ip_set_ad(struct net *net, struct sock *ctnl,
nla_for_each_nested(nla, attr[IPSET_ATTR_ADT], nla_rem) {
if (nla_type(nla) != IPSET_ATTR_DATA ||
!flag_nested(nla) ||
- nla_parse_nested_deprecated(tb, IPSET_ATTR_ADT_MAX, nla, set->type->adt_policy, NULL))
+ nla_parse_nested(tb, IPSET_ATTR_ADT_MAX, nla,
+ set->type->adt_policy, NULL))
return -IPSET_ERR_PROTOCOL;
ret = call_ad(ctnl, skb, set, tb, adt,
flags, use_lineno);
@@ -1655,7 +1669,8 @@ static int ip_set_utest(struct net *net, struct sock *ctnl, struct sk_buff *skb,
if (!set)
return -ENOENT;
- if (nla_parse_nested_deprecated(tb, IPSET_ATTR_ADT_MAX, attr[IPSET_ATTR_DATA], set->type->adt_policy, NULL))
+ if (nla_parse_nested(tb, IPSET_ATTR_ADT_MAX, attr[IPSET_ATTR_DATA],
+ set->type->adt_policy, NULL))
return -IPSET_ERR_PROTOCOL;
rcu_read_lock_bh();
@@ -1961,7 +1976,7 @@ static const struct nfnl_callback ip_set_netlink_subsys_cb[IPSET_MSG_MAX] = {
[IPSET_CMD_LIST] = {
.call = ip_set_dump,
.attr_count = IPSET_ATTR_CMD_MAX,
- .policy = ip_set_setname_policy,
+ .policy = ip_set_dump_policy,
},
[IPSET_CMD_SAVE] = {
.call = ip_set_dump,
@@ -2069,8 +2084,9 @@ ip_set_sockfn_get(struct sock *sk, int optval, void __user *user, int *len)
}
req_version->version = IPSET_PROTOCOL;
- ret = copy_to_user(user, req_version,
- sizeof(struct ip_set_req_version));
+ if (copy_to_user(user, req_version,
+ sizeof(struct ip_set_req_version)))
+ ret = -EFAULT;
goto done;
}
case IP_SET_OP_GET_BYNAME: {
@@ -2129,7 +2145,8 @@ ip_set_sockfn_get(struct sock *sk, int optval, void __user *user, int *len)
} /* end of switch(op) */
copy:
- ret = copy_to_user(user, data, copylen);
+ if (copy_to_user(user, data, copylen))
+ ret = -EFAULT;
done:
vfree(data);
diff --git a/net/netfilter/ipset/ip_set_hash_ipmac.c b/net/netfilter/ipset/ip_set_hash_ipmac.c
index 24d8f4d..4ce563e 100644
--- a/net/netfilter/ipset/ip_set_hash_ipmac.c
+++ b/net/netfilter/ipset/ip_set_hash_ipmac.c
@@ -209,7 +209,7 @@ hash_ipmac6_kadt(struct ip_set *set, const struct sk_buff *skb,
(skb_mac_header(skb) + ETH_HLEN) > skb->data)
return -EINVAL;
- if (opt->flags & IPSET_DIM_ONE_SRC)
+ if (opt->flags & IPSET_DIM_TWO_SRC)
ether_addr_copy(e.ether, eth_hdr(skb)->h_source);
else
ether_addr_copy(e.ether, eth_hdr(skb)->h_dest);
diff --git a/net/netfilter/ipset/ip_set_hash_net.c b/net/netfilter/ipset/ip_set_hash_net.c
index c259cbc..3d932de 100644
--- a/net/netfilter/ipset/ip_set_hash_net.c
+++ b/net/netfilter/ipset/ip_set_hash_net.c
@@ -368,6 +368,7 @@ static struct ip_set_type hash_net_type __read_mostly = {
[IPSET_ATTR_IP_TO] = { .type = NLA_NESTED },
[IPSET_ATTR_CIDR] = { .type = NLA_U8 },
[IPSET_ATTR_TIMEOUT] = { .type = NLA_U32 },
+ [IPSET_ATTR_LINENO] = { .type = NLA_U32 },
[IPSET_ATTR_CADT_FLAGS] = { .type = NLA_U32 },
[IPSET_ATTR_BYTES] = { .type = NLA_U64 },
[IPSET_ATTR_PACKETS] = { .type = NLA_U64 },
diff --git a/net/netfilter/ipset/ip_set_hash_netnet.c b/net/netfilter/ipset/ip_set_hash_netnet.c
index a3ae69b..4398322 100644
--- a/net/netfilter/ipset/ip_set_hash_netnet.c
+++ b/net/netfilter/ipset/ip_set_hash_netnet.c
@@ -476,6 +476,7 @@ static struct ip_set_type hash_netnet_type __read_mostly = {
[IPSET_ATTR_CIDR] = { .type = NLA_U8 },
[IPSET_ATTR_CIDR2] = { .type = NLA_U8 },
[IPSET_ATTR_TIMEOUT] = { .type = NLA_U32 },
+ [IPSET_ATTR_LINENO] = { .type = NLA_U32 },
[IPSET_ATTR_CADT_FLAGS] = { .type = NLA_U32 },
[IPSET_ATTR_BYTES] = { .type = NLA_U64 },
[IPSET_ATTR_PACKETS] = { .type = NLA_U64 },
diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index d481f9b..712a428 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -1922,6 +1922,7 @@ static int nf_tables_newchain(struct net *net, struct sock *nlsk,
if (nlh->nlmsg_flags & NLM_F_REPLACE)
return -EOPNOTSUPP;
+ flags |= chain->flags & NFT_BASE_CHAIN;
return nf_tables_updchain(&ctx, genmask, policy, flags);
}
@@ -5143,9 +5144,6 @@ static int nf_tables_updobj(const struct nft_ctx *ctx,
struct nft_trans *trans;
int err;
- if (!obj->ops->update)
- return -EOPNOTSUPP;
-
trans = nft_trans_alloc(ctx, NFT_MSG_NEWOBJ,
sizeof(struct nft_trans_obj));
if (!trans)
@@ -6499,7 +6497,8 @@ static void nft_obj_commit_update(struct nft_trans *trans)
obj = nft_trans_obj(trans);
newobj = nft_trans_obj_newobj(trans);
- obj->ops->update(obj, newobj);
+ if (obj->ops->update)
+ obj->ops->update(obj, newobj);
kfree(newobj);
}
diff --git a/net/netfilter/nf_tables_offload.c b/net/netfilter/nf_tables_offload.c
index ad783f4..e25dab8 100644
--- a/net/netfilter/nf_tables_offload.c
+++ b/net/netfilter/nf_tables_offload.c
@@ -334,7 +334,8 @@ int nft_flow_rule_offload_commit(struct net *net)
switch (trans->msg_type) {
case NFT_MSG_NEWCHAIN:
- if (!(trans->ctx.chain->flags & NFT_CHAIN_HW_OFFLOAD))
+ if (!(trans->ctx.chain->flags & NFT_CHAIN_HW_OFFLOAD) ||
+ nft_trans_chain_update(trans))
continue;
policy = nft_trans_chain_policy(trans);
diff --git a/net/netfilter/nft_bitwise.c b/net/netfilter/nft_bitwise.c
index 9743001..02afa75 100644
--- a/net/netfilter/nft_bitwise.c
+++ b/net/netfilter/nft_bitwise.c
@@ -134,12 +134,13 @@ static int nft_bitwise_offload(struct nft_offload_ctx *ctx,
const struct nft_expr *expr)
{
const struct nft_bitwise *priv = nft_expr_priv(expr);
+ struct nft_offload_reg *reg = &ctx->regs[priv->dreg];
if (memcmp(&priv->xor, &zero, sizeof(priv->xor)) ||
- priv->sreg != priv->dreg)
+ priv->sreg != priv->dreg || priv->len != reg->len)
return -EOPNOTSUPP;
- memcpy(&ctx->regs[priv->dreg].mask, &priv->mask, sizeof(priv->mask));
+ memcpy(®->mask, &priv->mask, sizeof(priv->mask));
return 0;
}
diff --git a/net/netfilter/nft_cmp.c b/net/netfilter/nft_cmp.c
index bd173b1..0744b2b 100644
--- a/net/netfilter/nft_cmp.c
+++ b/net/netfilter/nft_cmp.c
@@ -116,7 +116,7 @@ static int __nft_cmp_offload(struct nft_offload_ctx *ctx,
u8 *mask = (u8 *)&flow->match.mask;
u8 *key = (u8 *)&flow->match.key;
- if (priv->op != NFT_CMP_EQ)
+ if (priv->op != NFT_CMP_EQ || reg->len != priv->len)
return -EOPNOTSUPP;
memcpy(key + reg->offset, &priv->data, priv->len);
diff --git a/net/nfc/netlink.c b/net/nfc/netlink.c
index 17e6ca6..afde0d7 100644
--- a/net/nfc/netlink.c
+++ b/net/nfc/netlink.c
@@ -1099,7 +1099,6 @@ static int nfc_genl_llc_set_params(struct sk_buff *skb, struct genl_info *info)
local = nfc_llcp_find_local(dev);
if (!local) {
- nfc_put_device(dev);
rc = -ENODEV;
goto exit;
}
@@ -1159,7 +1158,6 @@ static int nfc_genl_llc_sdreq(struct sk_buff *skb, struct genl_info *info)
local = nfc_llcp_find_local(dev);
if (!local) {
- nfc_put_device(dev);
rc = -ENODEV;
goto exit;
}
diff --git a/net/rds/ib_cm.c b/net/rds/ib_cm.c
index 233f136..18c6fac 100644
--- a/net/rds/ib_cm.c
+++ b/net/rds/ib_cm.c
@@ -450,6 +450,7 @@ static int rds_ib_setup_qp(struct rds_connection *conn)
struct ib_qp_init_attr attr;
struct ib_cq_init_attr cq_attr = {};
struct rds_ib_device *rds_ibdev;
+ unsigned long max_wrs;
int ret, fr_queue_space;
/*
@@ -469,10 +470,15 @@ static int rds_ib_setup_qp(struct rds_connection *conn)
/* add the conn now so that connection establishment has the dev */
rds_ib_add_conn(rds_ibdev, conn);
- if (rds_ibdev->max_wrs < ic->i_send_ring.w_nr + 1)
- rds_ib_ring_resize(&ic->i_send_ring, rds_ibdev->max_wrs - 1);
- if (rds_ibdev->max_wrs < ic->i_recv_ring.w_nr + 1)
- rds_ib_ring_resize(&ic->i_recv_ring, rds_ibdev->max_wrs - 1);
+ max_wrs = rds_ibdev->max_wrs < rds_ib_sysctl_max_send_wr + 1 ?
+ rds_ibdev->max_wrs - 1 : rds_ib_sysctl_max_send_wr;
+ if (ic->i_send_ring.w_nr != max_wrs)
+ rds_ib_ring_resize(&ic->i_send_ring, max_wrs);
+
+ max_wrs = rds_ibdev->max_wrs < rds_ib_sysctl_max_recv_wr + 1 ?
+ rds_ibdev->max_wrs - 1 : rds_ib_sysctl_max_recv_wr;
+ if (ic->i_recv_ring.w_nr != max_wrs)
+ rds_ib_ring_resize(&ic->i_recv_ring, max_wrs);
/* Protection domain and memory range */
ic->i_pd = rds_ibdev->pd;
@@ -1099,8 +1105,9 @@ void rds_ib_conn_path_shutdown(struct rds_conn_path *cp)
ic->i_flowctl = 0;
atomic_set(&ic->i_credits, 0);
- rds_ib_ring_init(&ic->i_send_ring, rds_ib_sysctl_max_send_wr);
- rds_ib_ring_init(&ic->i_recv_ring, rds_ib_sysctl_max_recv_wr);
+ /* Re-init rings, but retain sizes. */
+ rds_ib_ring_init(&ic->i_send_ring, ic->i_send_ring.w_nr);
+ rds_ib_ring_init(&ic->i_recv_ring, ic->i_recv_ring.w_nr);
if (ic->i_ibinc) {
rds_inc_put(&ic->i_ibinc->ii_inc);
@@ -1147,8 +1154,8 @@ int rds_ib_conn_alloc(struct rds_connection *conn, gfp_t gfp)
* rds_ib_conn_shutdown() waits for these to be emptied so they
* must be initialized before it can be called.
*/
- rds_ib_ring_init(&ic->i_send_ring, rds_ib_sysctl_max_send_wr);
- rds_ib_ring_init(&ic->i_recv_ring, rds_ib_sysctl_max_recv_wr);
+ rds_ib_ring_init(&ic->i_send_ring, 0);
+ rds_ib_ring_init(&ic->i_recv_ring, 0);
ic->conn = conn;
conn->c_transport_data = ic;
diff --git a/net/sched/cls_api.c b/net/sched/cls_api.c
index 8717c0b..20d60b8f 100644
--- a/net/sched/cls_api.c
+++ b/net/sched/cls_api.c
@@ -21,6 +21,7 @@
#include <linux/slab.h>
#include <linux/idr.h>
#include <linux/rhashtable.h>
+#include <linux/jhash.h>
#include <net/net_namespace.h>
#include <net/sock.h>
#include <net/netlink.h>
@@ -47,6 +48,62 @@ static LIST_HEAD(tcf_proto_base);
/* Protects list of registered TC modules. It is pure SMP lock. */
static DEFINE_RWLOCK(cls_mod_lock);
+static u32 destroy_obj_hashfn(const struct tcf_proto *tp)
+{
+ return jhash_3words(tp->chain->index, tp->prio,
+ (__force __u32)tp->protocol, 0);
+}
+
+static void tcf_proto_signal_destroying(struct tcf_chain *chain,
+ struct tcf_proto *tp)
+{
+ struct tcf_block *block = chain->block;
+
+ mutex_lock(&block->proto_destroy_lock);
+ hash_add_rcu(block->proto_destroy_ht, &tp->destroy_ht_node,
+ destroy_obj_hashfn(tp));
+ mutex_unlock(&block->proto_destroy_lock);
+}
+
+static bool tcf_proto_cmp(const struct tcf_proto *tp1,
+ const struct tcf_proto *tp2)
+{
+ return tp1->chain->index == tp2->chain->index &&
+ tp1->prio == tp2->prio &&
+ tp1->protocol == tp2->protocol;
+}
+
+static bool tcf_proto_exists_destroying(struct tcf_chain *chain,
+ struct tcf_proto *tp)
+{
+ u32 hash = destroy_obj_hashfn(tp);
+ struct tcf_proto *iter;
+ bool found = false;
+
+ rcu_read_lock();
+ hash_for_each_possible_rcu(chain->block->proto_destroy_ht, iter,
+ destroy_ht_node, hash) {
+ if (tcf_proto_cmp(tp, iter)) {
+ found = true;
+ break;
+ }
+ }
+ rcu_read_unlock();
+
+ return found;
+}
+
+static void
+tcf_proto_signal_destroyed(struct tcf_chain *chain, struct tcf_proto *tp)
+{
+ struct tcf_block *block = chain->block;
+
+ mutex_lock(&block->proto_destroy_lock);
+ if (hash_hashed(&tp->destroy_ht_node))
+ hash_del_rcu(&tp->destroy_ht_node);
+ mutex_unlock(&block->proto_destroy_lock);
+}
+
/* Find classifier type by string name */
static const struct tcf_proto_ops *__tcf_proto_lookup_ops(const char *kind)
@@ -234,9 +291,11 @@ static void tcf_proto_get(struct tcf_proto *tp)
static void tcf_chain_put(struct tcf_chain *chain);
static void tcf_proto_destroy(struct tcf_proto *tp, bool rtnl_held,
- struct netlink_ext_ack *extack)
+ bool sig_destroy, struct netlink_ext_ack *extack)
{
tp->ops->destroy(tp, rtnl_held, extack);
+ if (sig_destroy)
+ tcf_proto_signal_destroyed(tp->chain, tp);
tcf_chain_put(tp->chain);
module_put(tp->ops->owner);
kfree_rcu(tp, rcu);
@@ -246,7 +305,7 @@ static void tcf_proto_put(struct tcf_proto *tp, bool rtnl_held,
struct netlink_ext_ack *extack)
{
if (refcount_dec_and_test(&tp->refcnt))
- tcf_proto_destroy(tp, rtnl_held, extack);
+ tcf_proto_destroy(tp, rtnl_held, true, extack);
}
static int walker_check_empty(struct tcf_proto *tp, void *fh,
@@ -370,6 +429,7 @@ static bool tcf_chain_detach(struct tcf_chain *chain)
static void tcf_block_destroy(struct tcf_block *block)
{
mutex_destroy(&block->lock);
+ mutex_destroy(&block->proto_destroy_lock);
kfree_rcu(block, rcu);
}
@@ -545,6 +605,12 @@ static void tcf_chain_flush(struct tcf_chain *chain, bool rtnl_held)
mutex_lock(&chain->filter_chain_lock);
tp = tcf_chain_dereference(chain->filter_chain, chain);
+ while (tp) {
+ tp_next = rcu_dereference_protected(tp->next, 1);
+ tcf_proto_signal_destroying(chain, tp);
+ tp = tp_next;
+ }
+ tp = tcf_chain_dereference(chain->filter_chain, chain);
RCU_INIT_POINTER(chain->filter_chain, NULL);
tcf_chain0_head_change(chain, NULL);
chain->flushing = true;
@@ -844,6 +910,7 @@ static struct tcf_block *tcf_block_create(struct net *net, struct Qdisc *q,
return ERR_PTR(-ENOMEM);
}
mutex_init(&block->lock);
+ mutex_init(&block->proto_destroy_lock);
init_rwsem(&block->cb_lock);
flow_block_init(&block->flow_block);
INIT_LIST_HEAD(&block->chain_list);
@@ -1621,6 +1688,12 @@ static struct tcf_proto *tcf_chain_tp_insert_unique(struct tcf_chain *chain,
mutex_lock(&chain->filter_chain_lock);
+ if (tcf_proto_exists_destroying(chain, tp_new)) {
+ mutex_unlock(&chain->filter_chain_lock);
+ tcf_proto_destroy(tp_new, rtnl_held, false, NULL);
+ return ERR_PTR(-EAGAIN);
+ }
+
tp = tcf_chain_tp_find(chain, &chain_info,
protocol, prio, false);
if (!tp)
@@ -1628,10 +1701,10 @@ static struct tcf_proto *tcf_chain_tp_insert_unique(struct tcf_chain *chain,
mutex_unlock(&chain->filter_chain_lock);
if (tp) {
- tcf_proto_destroy(tp_new, rtnl_held, NULL);
+ tcf_proto_destroy(tp_new, rtnl_held, false, NULL);
tp_new = tp;
} else if (err) {
- tcf_proto_destroy(tp_new, rtnl_held, NULL);
+ tcf_proto_destroy(tp_new, rtnl_held, false, NULL);
tp_new = ERR_PTR(err);
}
@@ -1669,6 +1742,7 @@ static void tcf_chain_tp_delete_empty(struct tcf_chain *chain,
return;
}
+ tcf_proto_signal_destroying(chain, tp);
next = tcf_chain_dereference(chain_info.next, chain);
if (tp == chain->filter_chain)
tcf_chain0_head_change(chain, next);
@@ -2188,6 +2262,7 @@ static int tc_del_tfilter(struct sk_buff *skb, struct nlmsghdr *n,
err = -EINVAL;
goto errout_locked;
} else if (t->tcm_handle == 0) {
+ tcf_proto_signal_destroying(chain, tp);
tcf_chain_tp_remove(chain, &chain_info, tp);
mutex_unlock(&chain->filter_chain_lock);
diff --git a/net/sched/sch_taprio.c b/net/sched/sch_taprio.c
index 2121187..7cd6862 100644
--- a/net/sched/sch_taprio.c
+++ b/net/sched/sch_taprio.c
@@ -1224,8 +1224,6 @@ static int taprio_enable_offload(struct net_device *dev,
goto done;
}
- taprio_offload_config_changed(q);
-
done:
taprio_offload_free(offload);
@@ -1505,6 +1503,9 @@ static int taprio_change(struct Qdisc *sch, struct nlattr *opt,
call_rcu(&admin->rcu, taprio_free_sched_cb);
spin_unlock_irqrestore(&q->current_entry_lock, flags);
+
+ if (FULL_OFFLOAD_IS_ENABLED(taprio_flags))
+ taprio_offload_config_changed(q);
}
new_admin = NULL;
diff --git a/net/smc/af_smc.c b/net/smc/af_smc.c
index 47946f4..737b499 100644
--- a/net/smc/af_smc.c
+++ b/net/smc/af_smc.c
@@ -796,6 +796,7 @@ static void smc_connect_work(struct work_struct *work)
smc->sk.sk_err = EPIPE;
else if (signal_pending(current))
smc->sk.sk_err = -sock_intr_errno(timeo);
+ sock_put(&smc->sk); /* passive closing */
goto out;
}
@@ -1731,7 +1732,7 @@ static int smc_setsockopt(struct socket *sock, int level, int optname,
case TCP_FASTOPEN_KEY:
case TCP_FASTOPEN_NO_COOKIE:
/* option not supported by SMC */
- if (sk->sk_state == SMC_INIT) {
+ if (sk->sk_state == SMC_INIT && !smc->connect_nonblock) {
smc_switch_to_fallback(smc);
smc->fallback_rsn = SMC_CLC_DECL_OPTUNSUPP;
} else {
diff --git a/net/smc/smc_pnet.c b/net/smc/smc_pnet.c
index 2920b00..571e6d8 100644
--- a/net/smc/smc_pnet.c
+++ b/net/smc/smc_pnet.c
@@ -376,8 +376,6 @@ static int smc_pnet_fill_entry(struct net *net,
return 0;
error:
- if (pnetelem->ndev)
- dev_put(pnetelem->ndev);
return rc;
}
diff --git a/net/tipc/core.c b/net/tipc/core.c
index 23cb379..8f35060 100644
--- a/net/tipc/core.c
+++ b/net/tipc/core.c
@@ -34,8 +34,6 @@
* POSSIBILITY OF SUCH DAMAGE.
*/
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
#include "core.h"
#include "name_table.h"
#include "subscr.h"
diff --git a/net/tipc/core.h b/net/tipc/core.h
index 60d8295..3042f65 100644
--- a/net/tipc/core.h
+++ b/net/tipc/core.h
@@ -60,6 +60,12 @@
#include <linux/rhashtable.h>
#include <net/genetlink.h>
+#ifdef pr_fmt
+#undef pr_fmt
+#endif
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
struct tipc_node;
struct tipc_bearer;
struct tipc_bc_base;
diff --git a/net/tls/tls_device.c b/net/tls/tls_device.c
index f959487..683d008 100644
--- a/net/tls/tls_device.c
+++ b/net/tls/tls_device.c
@@ -523,8 +523,10 @@ static int tls_push_data(struct sock *sk,
int tls_device_sendmsg(struct sock *sk, struct msghdr *msg, size_t size)
{
unsigned char record_type = TLS_RECORD_TYPE_DATA;
+ struct tls_context *tls_ctx = tls_get_ctx(sk);
int rc;
+ mutex_lock(&tls_ctx->tx_lock);
lock_sock(sk);
if (unlikely(msg->msg_controllen)) {
@@ -538,12 +540,14 @@ int tls_device_sendmsg(struct sock *sk, struct msghdr *msg, size_t size)
out:
release_sock(sk);
+ mutex_unlock(&tls_ctx->tx_lock);
return rc;
}
int tls_device_sendpage(struct sock *sk, struct page *page,
int offset, size_t size, int flags)
{
+ struct tls_context *tls_ctx = tls_get_ctx(sk);
struct iov_iter msg_iter;
char *kaddr = kmap(page);
struct kvec iov;
@@ -552,6 +556,7 @@ int tls_device_sendpage(struct sock *sk, struct page *page,
if (flags & MSG_SENDPAGE_NOTLAST)
flags |= MSG_MORE;
+ mutex_lock(&tls_ctx->tx_lock);
lock_sock(sk);
if (flags & MSG_OOB) {
@@ -568,6 +573,7 @@ int tls_device_sendpage(struct sock *sk, struct page *page,
out:
release_sock(sk);
+ mutex_unlock(&tls_ctx->tx_lock);
return rc;
}
@@ -623,9 +629,11 @@ static int tls_device_push_pending_record(struct sock *sk, int flags)
void tls_device_write_space(struct sock *sk, struct tls_context *ctx)
{
- if (!sk->sk_write_pending && tls_is_partially_sent_record(ctx)) {
+ if (tls_is_partially_sent_record(ctx)) {
gfp_t sk_allocation = sk->sk_allocation;
+ WARN_ON_ONCE(sk->sk_write_pending);
+
sk->sk_allocation = GFP_ATOMIC;
tls_push_partial_record(sk, ctx,
MSG_DONTWAIT | MSG_NOSIGNAL |
diff --git a/net/tls/tls_main.c b/net/tls/tls_main.c
index ac88877..0775ae40 100644
--- a/net/tls/tls_main.c
+++ b/net/tls/tls_main.c
@@ -267,6 +267,7 @@ void tls_ctx_free(struct sock *sk, struct tls_context *ctx)
memzero_explicit(&ctx->crypto_send, sizeof(ctx->crypto_send));
memzero_explicit(&ctx->crypto_recv, sizeof(ctx->crypto_recv));
+ mutex_destroy(&ctx->tx_lock);
if (sk)
kfree_rcu(ctx, rcu);
@@ -612,6 +613,7 @@ static struct tls_context *create_ctx(struct sock *sk)
if (!ctx)
return NULL;
+ mutex_init(&ctx->tx_lock);
rcu_assign_pointer(icsk->icsk_ulp_data, ctx);
ctx->sk_proto = sk->sk_prot;
return ctx;
diff --git a/net/tls/tls_sw.c b/net/tls/tls_sw.c
index c2b5e0d..446f23c 100644
--- a/net/tls/tls_sw.c
+++ b/net/tls/tls_sw.c
@@ -897,15 +897,9 @@ int tls_sw_sendmsg(struct sock *sk, struct msghdr *msg, size_t size)
if (msg->msg_flags & ~(MSG_MORE | MSG_DONTWAIT | MSG_NOSIGNAL))
return -ENOTSUPP;
+ mutex_lock(&tls_ctx->tx_lock);
lock_sock(sk);
- /* Wait till there is any pending write on socket */
- if (unlikely(sk->sk_write_pending)) {
- ret = wait_on_pending_writer(sk, &timeo);
- if (unlikely(ret))
- goto send_end;
- }
-
if (unlikely(msg->msg_controllen)) {
ret = tls_proccess_cmsg(sk, msg, &record_type);
if (ret) {
@@ -1091,6 +1085,7 @@ int tls_sw_sendmsg(struct sock *sk, struct msghdr *msg, size_t size)
ret = sk_stream_error(sk, msg->msg_flags, ret);
release_sock(sk);
+ mutex_unlock(&tls_ctx->tx_lock);
return copied ? copied : ret;
}
@@ -1114,13 +1109,6 @@ static int tls_sw_do_sendpage(struct sock *sk, struct page *page,
eor = !(flags & (MSG_MORE | MSG_SENDPAGE_NOTLAST));
sk_clear_bit(SOCKWQ_ASYNC_NOSPACE, sk);
- /* Wait till there is any pending write on socket */
- if (unlikely(sk->sk_write_pending)) {
- ret = wait_on_pending_writer(sk, &timeo);
- if (unlikely(ret))
- goto sendpage_end;
- }
-
/* Call the sk_stream functions to manage the sndbuf mem. */
while (size > 0) {
size_t copy, required_size;
@@ -1219,15 +1207,18 @@ static int tls_sw_do_sendpage(struct sock *sk, struct page *page,
int tls_sw_sendpage(struct sock *sk, struct page *page,
int offset, size_t size, int flags)
{
+ struct tls_context *tls_ctx = tls_get_ctx(sk);
int ret;
if (flags & ~(MSG_MORE | MSG_DONTWAIT | MSG_NOSIGNAL |
MSG_SENDPAGE_NOTLAST | MSG_SENDPAGE_NOPOLICY))
return -ENOTSUPP;
+ mutex_lock(&tls_ctx->tx_lock);
lock_sock(sk);
ret = tls_sw_do_sendpage(sk, page, offset, size, flags);
release_sock(sk);
+ mutex_unlock(&tls_ctx->tx_lock);
return ret;
}
@@ -2170,9 +2161,11 @@ static void tx_work_handler(struct work_struct *work)
if (!test_and_clear_bit(BIT_TX_SCHEDULED, &ctx->tx_bitmask))
return;
+ mutex_lock(&tls_ctx->tx_lock);
lock_sock(sk);
tls_tx_records(sk, -1);
release_sock(sk);
+ mutex_unlock(&tls_ctx->tx_lock);
}
void tls_sw_write_space(struct sock *sk, struct tls_context *ctx)
@@ -2180,12 +2173,9 @@ void tls_sw_write_space(struct sock *sk, struct tls_context *ctx)
struct tls_sw_context_tx *tx_ctx = tls_sw_ctx_tx(ctx);
/* Schedule the transmission if tx list is ready */
- if (is_tx_ready(tx_ctx) && !sk->sk_write_pending) {
- /* Schedule the transmission */
- if (!test_and_set_bit(BIT_TX_SCHEDULED,
- &tx_ctx->tx_bitmask))
- schedule_delayed_work(&tx_ctx->tx_work.work, 0);
- }
+ if (is_tx_ready(tx_ctx) &&
+ !test_and_set_bit(BIT_TX_SCHEDULED, &tx_ctx->tx_bitmask))
+ schedule_delayed_work(&tx_ctx->tx_work.work, 0);
}
void tls_sw_strparser_arm(struct sock *sk, struct tls_context *tls_ctx)
diff --git a/net/vmw_vsock/virtio_transport_common.c b/net/vmw_vsock/virtio_transport_common.c
index 481f7f8..fb2060d 100644
--- a/net/vmw_vsock/virtio_transport_common.c
+++ b/net/vmw_vsock/virtio_transport_common.c
@@ -947,9 +947,11 @@ virtio_transport_recv_connected(struct sock *sk,
if (le32_to_cpu(pkt->hdr.flags) & VIRTIO_VSOCK_SHUTDOWN_SEND)
vsk->peer_shutdown |= SEND_SHUTDOWN;
if (vsk->peer_shutdown == SHUTDOWN_MASK &&
- vsock_stream_has_data(vsk) <= 0) {
- sock_set_flag(sk, SOCK_DONE);
- sk->sk_state = TCP_CLOSING;
+ vsock_stream_has_data(vsk) <= 0 &&
+ !sock_flag(sk, SOCK_DONE)) {
+ (void)virtio_transport_reset(vsk, NULL);
+
+ virtio_transport_do_close(vsk, true);
}
if (le32_to_cpu(pkt->hdr.flags))
sk->sk_state_change(sk);
diff --git a/net/xfrm/xfrm_input.c b/net/xfrm/xfrm_input.c
index 9b599ed..2c86a2f 100644
--- a/net/xfrm/xfrm_input.c
+++ b/net/xfrm/xfrm_input.c
@@ -480,6 +480,9 @@ int xfrm_input(struct sk_buff *skb, int nexthdr, __be32 spi, int encap_type)
else
XFRM_INC_STATS(net,
LINUX_MIB_XFRMINSTATEINVALID);
+
+ if (encap_type == -1)
+ dev_put(skb->dev);
goto drop;
}
diff --git a/net/xfrm/xfrm_state.c b/net/xfrm/xfrm_state.c
index c6f3c4a..f342356 100644
--- a/net/xfrm/xfrm_state.c
+++ b/net/xfrm/xfrm_state.c
@@ -495,6 +495,8 @@ static void ___xfrm_state_destroy(struct xfrm_state *x)
x->type->destructor(x);
xfrm_put_type(x->type);
}
+ if (x->xfrag.page)
+ put_page(x->xfrag.page);
xfrm_dev_state_free(x);
security_xfrm_state_free(x);
xfrm_state_free(x);
diff --git a/samples/bpf/Makefile b/samples/bpf/Makefile
index 1d9be26..42b571c 100644
--- a/samples/bpf/Makefile
+++ b/samples/bpf/Makefile
@@ -176,6 +176,7 @@
KBUILD_HOSTCFLAGS += -I$(srctree)/tools/testing/selftests/bpf/
KBUILD_HOSTCFLAGS += -I$(srctree)/tools/lib/ -I$(srctree)/tools/include
KBUILD_HOSTCFLAGS += -I$(srctree)/tools/perf
+KBUILD_HOSTCFLAGS += -DHAVE_ATTR_TEST=0
HOSTCFLAGS_bpf_load.o += -I$(objtree)/usr/include -Wno-unused-variable
diff --git a/scripts/gdb/linux/symbols.py b/scripts/gdb/linux/symbols.py
index 7b7c2fa..be984aa 100644
--- a/scripts/gdb/linux/symbols.py
+++ b/scripts/gdb/linux/symbols.py
@@ -99,7 +99,8 @@
attrs[n]['name'].string(): attrs[n]['address']
for n in range(int(sect_attrs['nsections']))}
args = []
- for section_name in [".data", ".data..read_mostly", ".rodata", ".bss"]:
+ for section_name in [".data", ".data..read_mostly", ".rodata", ".bss",
+ ".text", ".text.hot", ".text.unlikely"]:
address = section_name_to_address.get(section_name)
if address:
args.append(" -s {name} {addr}".format(
diff --git a/scripts/nsdeps b/scripts/nsdeps
index dda6fba..04cea09 100644
--- a/scripts/nsdeps
+++ b/scripts/nsdeps
@@ -31,12 +31,12 @@
local mod_file=`echo $@ | sed -e 's/\.ko/\.mod/'`
local ns_deps_file=`echo $@ | sed -e 's/\.ko/\.ns_deps/'`
if [ ! -f "$ns_deps_file" ]; then return; fi
- local mod_source_files=`cat $mod_file | sed -n 1p \
+ local mod_source_files="`cat $mod_file | sed -n 1p \
| sed -e 's/\.o/\.c/g' \
- | sed "s|[^ ]* *|${srctree}/&|g"`
+ | sed "s|[^ ]* *|${srctree}/&|g"`"
for ns in `cat $ns_deps_file`; do
echo "Adding namespace $ns to module $mod_name (if needed)."
- generate_deps_for_ns $ns $mod_source_files
+ generate_deps_for_ns $ns "$mod_source_files"
# sort the imports
for source_file in $mod_source_files; do
sed '/MODULE_IMPORT_NS/Q' $source_file > ${source_file}.tmp
diff --git a/scripts/tools-support-relr.sh b/scripts/tools-support-relr.sh
index 97a2c84..45e8aa3 100755
--- a/scripts/tools-support-relr.sh
+++ b/scripts/tools-support-relr.sh
@@ -4,13 +4,13 @@
tmp_file=$(mktemp)
trap "rm -f $tmp_file.o $tmp_file $tmp_file.bin" EXIT
-cat << "END" | "$CC" -c -x c - -o $tmp_file.o >/dev/null 2>&1
+cat << "END" | $CC -c -x c - -o $tmp_file.o >/dev/null 2>&1
void *p = &p;
END
-"$LD" $tmp_file.o -shared -Bsymbolic --pack-dyn-relocs=relr -o $tmp_file
+$LD $tmp_file.o -shared -Bsymbolic --pack-dyn-relocs=relr -o $tmp_file
# Despite printing an error message, GNU nm still exits with exit code 0 if it
# sees a relr section. So we need to check that nothing is printed to stderr.
-test -z "$("$NM" $tmp_file 2>&1 >/dev/null)"
+test -z "$($NM $tmp_file 2>&1 >/dev/null)"
-"$OBJCOPY" -O binary $tmp_file $tmp_file.bin
+$OBJCOPY -O binary $tmp_file $tmp_file.bin
diff --git a/sound/core/compress_offload.c b/sound/core/compress_offload.c
index 41905af..f34ce56 100644
--- a/sound/core/compress_offload.c
+++ b/sound/core/compress_offload.c
@@ -528,7 +528,7 @@ static int snd_compress_check_input(struct snd_compr_params *params)
{
/* first let's check the buffer parameter's */
if (params->buffer.fragment_size == 0 ||
- params->buffer.fragments > INT_MAX / params->buffer.fragment_size ||
+ params->buffer.fragments > U32_MAX / params->buffer.fragment_size ||
params->buffer.fragments == 0)
return -EINVAL;
diff --git a/sound/core/pcm_lib.c b/sound/core/pcm_lib.c
index d80041e..2236b5e 100644
--- a/sound/core/pcm_lib.c
+++ b/sound/core/pcm_lib.c
@@ -1782,11 +1782,14 @@ void snd_pcm_period_elapsed(struct snd_pcm_substream *substream)
struct snd_pcm_runtime *runtime;
unsigned long flags;
- if (PCM_RUNTIME_CHECK(substream))
+ if (snd_BUG_ON(!substream))
return;
- runtime = substream->runtime;
snd_pcm_stream_lock_irqsave(substream, flags);
+ if (PCM_RUNTIME_CHECK(substream))
+ goto _unlock;
+ runtime = substream->runtime;
+
if (!snd_pcm_running(substream) ||
snd_pcm_update_hw_ptr0(substream, 1) < 0)
goto _end;
@@ -1797,6 +1800,7 @@ void snd_pcm_period_elapsed(struct snd_pcm_substream *substream)
#endif
_end:
kill_fasync(&runtime->fasync, SIGIO, POLL_IN);
+ _unlock:
snd_pcm_stream_unlock_irqrestore(substream, flags);
}
EXPORT_SYMBOL(snd_pcm_period_elapsed);
diff --git a/sound/core/timer.c b/sound/core/timer.c
index 6b724d2..59ae21b 100644
--- a/sound/core/timer.c
+++ b/sound/core/timer.c
@@ -284,11 +284,11 @@ int snd_timer_open(struct snd_timer_instance **ti,
goto unlock;
}
if (!list_empty(&timer->open_list_head)) {
- timeri = list_entry(timer->open_list_head.next,
+ struct snd_timer_instance *t =
+ list_entry(timer->open_list_head.next,
struct snd_timer_instance, open_list);
- if (timeri->flags & SNDRV_TIMER_IFLG_EXCLUSIVE) {
+ if (t->flags & SNDRV_TIMER_IFLG_EXCLUSIVE) {
err = -EBUSY;
- timeri = NULL;
goto unlock;
}
}
diff --git a/sound/firewire/bebob/bebob_focusrite.c b/sound/firewire/bebob/bebob_focusrite.c
index 32b864b..06d6a37 100644
--- a/sound/firewire/bebob/bebob_focusrite.c
+++ b/sound/firewire/bebob/bebob_focusrite.c
@@ -27,6 +27,8 @@
#define SAFFIRE_CLOCK_SOURCE_SPDIF 1
/* clock sources as returned from register of Saffire Pro 10 and 26 */
+#define SAFFIREPRO_CLOCK_SOURCE_SELECT_MASK 0x000000ff
+#define SAFFIREPRO_CLOCK_SOURCE_DETECT_MASK 0x0000ff00
#define SAFFIREPRO_CLOCK_SOURCE_INTERNAL 0
#define SAFFIREPRO_CLOCK_SOURCE_SKIP 1 /* never used on hardware */
#define SAFFIREPRO_CLOCK_SOURCE_SPDIF 2
@@ -189,6 +191,7 @@ saffirepro_both_clk_src_get(struct snd_bebob *bebob, unsigned int *id)
map = saffirepro_clk_maps[1];
/* In a case that this driver cannot handle the value of register. */
+ value &= SAFFIREPRO_CLOCK_SOURCE_SELECT_MASK;
if (value >= SAFFIREPRO_CLOCK_SOURCE_COUNT || map[value] < 0) {
err = -EIO;
goto end;
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index cf53fbd..c524193 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -2396,6 +2396,9 @@ static const struct pci_device_id azx_ids[] = {
/* CometLake-H */
{ PCI_DEVICE(0x8086, 0x06C8),
.driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
+ /* CometLake-S */
+ { PCI_DEVICE(0x8086, 0xa3f0),
+ .driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
/* Icelake */
{ PCI_DEVICE(0x8086, 0x34c8),
.driver_data = AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE},
diff --git a/sound/pci/hda/patch_ca0132.c b/sound/pci/hda/patch_ca0132.c
index 6d1fb7c..b7a1abb 100644
--- a/sound/pci/hda/patch_ca0132.c
+++ b/sound/pci/hda/patch_ca0132.c
@@ -7604,7 +7604,7 @@ static void hp_callback(struct hda_codec *codec, struct hda_jack_callback *cb)
/* Delay enabling the HP amp, to let the mic-detection
* state machine run.
*/
- cancel_delayed_work_sync(&spec->unsol_hp_work);
+ cancel_delayed_work(&spec->unsol_hp_work);
schedule_delayed_work(&spec->unsol_hp_work, msecs_to_jiffies(500));
tbl = snd_hda_jack_tbl_get(codec, cb->nid);
if (tbl)
diff --git a/sound/pci/hda/patch_hdmi.c b/sound/pci/hda/patch_hdmi.c
index b725537..78bd2e3 100644
--- a/sound/pci/hda/patch_hdmi.c
+++ b/sound/pci/hda/patch_hdmi.c
@@ -46,10 +46,12 @@ MODULE_PARM_DESC(static_hdmi_pcm, "Don't restrict PCM parameters per ELD info");
((codec)->core.vendor_id == 0x80862800))
#define is_cannonlake(codec) ((codec)->core.vendor_id == 0x8086280c)
#define is_icelake(codec) ((codec)->core.vendor_id == 0x8086280f)
+#define is_tigerlake(codec) ((codec)->core.vendor_id == 0x80862812)
#define is_haswell_plus(codec) (is_haswell(codec) || is_broadwell(codec) \
|| is_skylake(codec) || is_broxton(codec) \
|| is_kabylake(codec) || is_geminilake(codec) \
- || is_cannonlake(codec) || is_icelake(codec))
+ || is_cannonlake(codec) || is_icelake(codec) \
+ || is_tigerlake(codec))
#define is_valleyview(codec) ((codec)->core.vendor_id == 0x80862882)
#define is_cherryview(codec) ((codec)->core.vendor_id == 0x80862883)
#define is_valleyview_plus(codec) (is_valleyview(codec) || is_cherryview(codec))
@@ -2851,6 +2853,18 @@ static int patch_i915_icl_hdmi(struct hda_codec *codec)
return intel_hsw_common_init(codec, 0x02, map, ARRAY_SIZE(map));
}
+static int patch_i915_tgl_hdmi(struct hda_codec *codec)
+{
+ /*
+ * pin to port mapping table where the value indicate the pin number and
+ * the index indicate the port number with 1 base.
+ */
+ static const int map[] = {0x4, 0x6, 0x8, 0xa, 0xb, 0xc, 0xd, 0xe, 0xf};
+
+ return intel_hsw_common_init(codec, 0x02, map, ARRAY_SIZE(map));
+}
+
+
/* Intel Baytrail and Braswell; with eld notifier */
static int patch_i915_byt_hdmi(struct hda_codec *codec)
{
@@ -4153,6 +4167,7 @@ HDA_CODEC_ENTRY(0x8086280b, "Kabylake HDMI", patch_i915_hsw_hdmi),
HDA_CODEC_ENTRY(0x8086280c, "Cannonlake HDMI", patch_i915_glk_hdmi),
HDA_CODEC_ENTRY(0x8086280d, "Geminilake HDMI", patch_i915_glk_hdmi),
HDA_CODEC_ENTRY(0x8086280f, "Icelake HDMI", patch_i915_icl_hdmi),
+HDA_CODEC_ENTRY(0x80862812, "Tigerlake HDMI", patch_i915_tgl_hdmi),
HDA_CODEC_ENTRY(0x80862880, "CedarTrail HDMI", patch_generic_hdmi),
HDA_CODEC_ENTRY(0x80862882, "Valleyview2 HDMI", patch_i915_byt_hdmi),
HDA_CODEC_ENTRY(0x80862883, "Braswell HDMI", patch_i915_byt_hdmi),
diff --git a/sound/soc/codecs/hdac_hda.c b/sound/soc/codecs/hdac_hda.c
index 91242b6..4570f66 100644
--- a/sound/soc/codecs/hdac_hda.c
+++ b/sound/soc/codecs/hdac_hda.c
@@ -410,8 +410,8 @@ static void hdac_hda_codec_remove(struct snd_soc_component *component)
return;
}
- snd_hdac_ext_bus_link_put(hdev->bus, hlink);
pm_runtime_disable(&hdev->dev);
+ snd_hdac_ext_bus_link_put(hdev->bus, hlink);
}
static const struct snd_soc_dapm_route hdac_hda_dapm_routes[] = {
diff --git a/sound/soc/codecs/hdmi-codec.c b/sound/soc/codecs/hdmi-codec.c
index b5fd8f0..f8b5b96 100644
--- a/sound/soc/codecs/hdmi-codec.c
+++ b/sound/soc/codecs/hdmi-codec.c
@@ -274,7 +274,7 @@ struct hdmi_codec_priv {
uint8_t eld[MAX_ELD_BYTES];
struct snd_pcm_chmap *chmap_info;
unsigned int chmap_idx;
- struct mutex lock;
+ unsigned long busy;
struct snd_soc_jack *jack;
unsigned int jack_status;
};
@@ -390,8 +390,8 @@ static int hdmi_codec_startup(struct snd_pcm_substream *substream,
struct hdmi_codec_priv *hcp = snd_soc_dai_get_drvdata(dai);
int ret = 0;
- ret = mutex_trylock(&hcp->lock);
- if (!ret) {
+ ret = test_and_set_bit(0, &hcp->busy);
+ if (ret) {
dev_err(dai->dev, "Only one simultaneous stream supported!\n");
return -EINVAL;
}
@@ -419,7 +419,7 @@ static int hdmi_codec_startup(struct snd_pcm_substream *substream,
err:
/* Release the exclusive lock on error */
- mutex_unlock(&hcp->lock);
+ clear_bit(0, &hcp->busy);
return ret;
}
@@ -431,7 +431,7 @@ static void hdmi_codec_shutdown(struct snd_pcm_substream *substream,
hcp->chmap_idx = HDMI_CODEC_CHMAP_IDX_UNKNOWN;
hcp->hcd.ops->audio_shutdown(dai->dev->parent, hcp->hcd.data);
- mutex_unlock(&hcp->lock);
+ clear_bit(0, &hcp->busy);
}
static int hdmi_codec_hw_params(struct snd_pcm_substream *substream,
@@ -811,8 +811,6 @@ static int hdmi_codec_probe(struct platform_device *pdev)
return -ENOMEM;
hcp->hcd = *hcd;
- mutex_init(&hcp->lock);
-
daidrv = devm_kcalloc(dev, dai_count, sizeof(*daidrv), GFP_KERNEL);
if (!daidrv)
return -ENOMEM;
diff --git a/sound/soc/codecs/max98373.c b/sound/soc/codecs/max98373.c
index eb709d5..cae1def 100644
--- a/sound/soc/codecs/max98373.c
+++ b/sound/soc/codecs/max98373.c
@@ -960,11 +960,11 @@ static int max98373_i2c_probe(struct i2c_client *i2c,
/* Power on device */
if (gpio_is_valid(max98373->reset_gpio)) {
- ret = gpio_request(max98373->reset_gpio, "MAX98373_RESET");
+ ret = devm_gpio_request(&i2c->dev, max98373->reset_gpio,
+ "MAX98373_RESET");
if (ret) {
dev_err(&i2c->dev, "%s: Failed to request gpio %d\n",
__func__, max98373->reset_gpio);
- gpio_free(max98373->reset_gpio);
return -EINVAL;
}
gpio_direction_output(max98373->reset_gpio, 0);
diff --git a/sound/soc/codecs/msm8916-wcd-analog.c b/sound/soc/codecs/msm8916-wcd-analog.c
index 667e9f7..e3d311f 100644
--- a/sound/soc/codecs/msm8916-wcd-analog.c
+++ b/sound/soc/codecs/msm8916-wcd-analog.c
@@ -306,7 +306,7 @@ struct pm8916_wcd_analog_priv {
};
static const char *const adc2_mux_text[] = { "ZERO", "INP2", "INP3" };
-static const char *const rdac2_mux_text[] = { "ZERO", "RX2", "RX1" };
+static const char *const rdac2_mux_text[] = { "RX1", "RX2" };
static const char *const hph_text[] = { "ZERO", "Switch", };
static const struct soc_enum hph_enum = SOC_ENUM_SINGLE_VIRT(
@@ -321,7 +321,7 @@ static const struct soc_enum adc2_enum = SOC_ENUM_SINGLE_VIRT(
/* RDAC2 MUX */
static const struct soc_enum rdac2_mux_enum = SOC_ENUM_SINGLE(
- CDC_D_CDC_CONN_HPHR_DAC_CTL, 0, 3, rdac2_mux_text);
+ CDC_D_CDC_CONN_HPHR_DAC_CTL, 0, 2, rdac2_mux_text);
static const struct snd_kcontrol_new spkr_switch[] = {
SOC_DAPM_SINGLE("Switch", CDC_A_SPKR_DAC_CTL, 7, 1, 0)
diff --git a/sound/soc/kirkwood/kirkwood-i2s.c b/sound/soc/kirkwood/kirkwood-i2s.c
index 61226fe..2a4ffe9 100644
--- a/sound/soc/kirkwood/kirkwood-i2s.c
+++ b/sound/soc/kirkwood/kirkwood-i2s.c
@@ -555,10 +555,6 @@ static int kirkwood_i2s_dev_probe(struct platform_device *pdev)
return PTR_ERR(priv->clk);
}
- err = clk_prepare_enable(priv->clk);
- if (err < 0)
- return err;
-
priv->extclk = devm_clk_get(&pdev->dev, "extclk");
if (IS_ERR(priv->extclk)) {
if (PTR_ERR(priv->extclk) == -EPROBE_DEFER)
@@ -574,6 +570,10 @@ static int kirkwood_i2s_dev_probe(struct platform_device *pdev)
}
}
+ err = clk_prepare_enable(priv->clk);
+ if (err < 0)
+ return err;
+
/* Some sensible defaults - this reflects the powerup values */
priv->ctl_play = KIRKWOOD_PLAYCTL_SIZE_24;
priv->ctl_rec = KIRKWOOD_RECCTL_SIZE_24;
@@ -587,7 +587,7 @@ static int kirkwood_i2s_dev_probe(struct platform_device *pdev)
priv->ctl_rec |= KIRKWOOD_RECCTL_BURST_128;
}
- err = devm_snd_soc_register_component(&pdev->dev, &kirkwood_soc_component,
+ err = snd_soc_register_component(&pdev->dev, &kirkwood_soc_component,
soc_dai, 2);
if (err) {
dev_err(&pdev->dev, "snd_soc_register_component failed\n");
@@ -610,6 +610,7 @@ static int kirkwood_i2s_dev_remove(struct platform_device *pdev)
{
struct kirkwood_dma_data *priv = dev_get_drvdata(&pdev->dev);
+ snd_soc_unregister_component(&pdev->dev);
if (!IS_ERR(priv->extclk))
clk_disable_unprepare(priv->extclk);
clk_disable_unprepare(priv->clk);
diff --git a/sound/soc/rockchip/rockchip_max98090.c b/sound/soc/rockchip/rockchip_max98090.c
index 0097df1..e80b0914 100644
--- a/sound/soc/rockchip/rockchip_max98090.c
+++ b/sound/soc/rockchip/rockchip_max98090.c
@@ -66,10 +66,13 @@ static int rk_jack_event(struct notifier_block *nb, unsigned long event,
struct snd_soc_jack *jack = (struct snd_soc_jack *)data;
struct snd_soc_dapm_context *dapm = &jack->card->dapm;
- if (event & SND_JACK_MICROPHONE)
+ if (event & SND_JACK_MICROPHONE) {
snd_soc_dapm_force_enable_pin(dapm, "MICBIAS");
- else
+ snd_soc_dapm_force_enable_pin(dapm, "SHDN");
+ } else {
snd_soc_dapm_disable_pin(dapm, "MICBIAS");
+ snd_soc_dapm_disable_pin(dapm, "SHDN");
+ }
snd_soc_dapm_sync(dapm);
diff --git a/sound/soc/sh/rcar/dma.c b/sound/soc/sh/rcar/dma.c
index 0324a5c..28f65eb 100644
--- a/sound/soc/sh/rcar/dma.c
+++ b/sound/soc/sh/rcar/dma.c
@@ -508,10 +508,10 @@ static struct rsnd_mod_ops rsnd_dmapp_ops = {
#define RDMA_SSI_I_N(addr, i) (addr ##_reg - 0x00300000 + (0x40 * i) + 0x8)
#define RDMA_SSI_O_N(addr, i) (addr ##_reg - 0x00300000 + (0x40 * i) + 0xc)
-#define RDMA_SSIU_I_N(addr, i, j) (addr ##_reg - 0x00441000 + (0x1000 * (i)) + (((j) / 4) * 0xA000) + (((j) % 4) * 0x400))
+#define RDMA_SSIU_I_N(addr, i, j) (addr ##_reg - 0x00441000 + (0x1000 * (i)) + (((j) / 4) * 0xA000) + (((j) % 4) * 0x400) - (0x4000 * ((i) / 9) * ((j) / 4)))
#define RDMA_SSIU_O_N(addr, i, j) RDMA_SSIU_I_N(addr, i, j)
-#define RDMA_SSIU_I_P(addr, i, j) (addr ##_reg - 0x00141000 + (0x1000 * (i)) + (((j) / 4) * 0xA000) + (((j) % 4) * 0x400))
+#define RDMA_SSIU_I_P(addr, i, j) (addr ##_reg - 0x00141000 + (0x1000 * (i)) + (((j) / 4) * 0xA000) + (((j) % 4) * 0x400) - (0x4000 * ((i) / 9) * ((j) / 4)))
#define RDMA_SSIU_O_P(addr, i, j) RDMA_SSIU_I_P(addr, i, j)
#define RDMA_SRC_I_N(addr, i) (addr ##_reg - 0x00500000 + (0x400 * i))
diff --git a/sound/soc/sof/debug.c b/sound/soc/sof/debug.c
index 54cd431..5529e8e 100644
--- a/sound/soc/sof/debug.c
+++ b/sound/soc/sof/debug.c
@@ -152,8 +152,10 @@ static ssize_t sof_dfsentry_write(struct file *file, const char __user *buffer,
*/
dentry = file->f_path.dentry;
if (strcmp(dentry->d_name.name, "ipc_flood_count") &&
- strcmp(dentry->d_name.name, "ipc_flood_duration_ms"))
- return -EINVAL;
+ strcmp(dentry->d_name.name, "ipc_flood_duration_ms")) {
+ ret = -EINVAL;
+ goto out;
+ }
if (!strcmp(dentry->d_name.name, "ipc_flood_duration_ms"))
flood_duration_test = true;
diff --git a/sound/soc/sof/intel/hda-stream.c b/sound/soc/sof/intel/hda-stream.c
index 2c74471..0c11fce 100644
--- a/sound/soc/sof/intel/hda-stream.c
+++ b/sound/soc/sof/intel/hda-stream.c
@@ -190,7 +190,7 @@ hda_dsp_stream_get(struct snd_sof_dev *sdev, int direction)
* Workaround to address a known issue with host DMA that results
* in xruns during pause/release in capture scenarios.
*/
- if (!IS_ENABLED(SND_SOC_SOF_HDA_ALWAYS_ENABLE_DMI_L1))
+ if (!IS_ENABLED(CONFIG_SND_SOC_SOF_HDA_ALWAYS_ENABLE_DMI_L1))
if (stream && direction == SNDRV_PCM_STREAM_CAPTURE)
snd_sof_dsp_update_bits(sdev, HDA_DSP_HDA_BAR,
HDA_VS_INTEL_EM2,
@@ -228,7 +228,7 @@ int hda_dsp_stream_put(struct snd_sof_dev *sdev, int direction, int stream_tag)
spin_unlock_irq(&bus->reg_lock);
/* Enable DMI L1 entry if there are no capture streams open */
- if (!IS_ENABLED(SND_SOC_SOF_HDA_ALWAYS_ENABLE_DMI_L1))
+ if (!IS_ENABLED(CONFIG_SND_SOC_SOF_HDA_ALWAYS_ENABLE_DMI_L1))
if (!active_capture_stream)
snd_sof_dsp_update_bits(sdev, HDA_DSP_HDA_BAR,
HDA_VS_INTEL_EM2,
diff --git a/sound/soc/sof/ipc.c b/sound/soc/sof/ipc.c
index b2f359d..086eeea 100644
--- a/sound/soc/sof/ipc.c
+++ b/sound/soc/sof/ipc.c
@@ -572,8 +572,10 @@ static int sof_set_get_large_ctrl_data(struct snd_sof_dev *sdev,
else
err = sof_get_ctrl_copy_params(cdata->type, partdata, cdata,
sparams);
- if (err < 0)
+ if (err < 0) {
+ kfree(partdata);
return err;
+ }
msg_bytes = sparams->msg_bytes;
pl_size = sparams->pl_size;
diff --git a/sound/soc/sof/topology.c b/sound/soc/sof/topology.c
index 0aabb31..4452594 100644
--- a/sound/soc/sof/topology.c
+++ b/sound/soc/sof/topology.c
@@ -543,15 +543,16 @@ static int sof_control_load_bytes(struct snd_soc_component *scomp,
struct soc_bytes_ext *sbe = (struct soc_bytes_ext *)kc->private_value;
int max_size = sbe->max;
- if (le32_to_cpu(control->priv.size) > max_size) {
- dev_err(sdev->dev, "err: bytes data size %d exceeds max %d.\n",
- control->priv.size, max_size);
- return -EINVAL;
- }
-
/* init the get/put bytes data */
scontrol->size = sizeof(struct sof_ipc_ctrl_data) +
le32_to_cpu(control->priv.size);
+
+ if (scontrol->size > max_size) {
+ dev_err(sdev->dev, "err: bytes data size %d exceeds max %d.\n",
+ scontrol->size, max_size);
+ return -EINVAL;
+ }
+
scontrol->control_data = kzalloc(max_size, GFP_KERNEL);
cdata = scontrol->control_data;
if (!scontrol->control_data)
diff --git a/sound/soc/stm/stm32_sai_sub.c b/sound/soc/stm/stm32_sai_sub.c
index a406081..48e629a 100644
--- a/sound/soc/stm/stm32_sai_sub.c
+++ b/sound/soc/stm/stm32_sai_sub.c
@@ -1218,6 +1218,16 @@ static int stm32_sai_pcm_process_spdif(struct snd_pcm_substream *substream,
return 0;
}
+/* No support of mmap in S/PDIF mode */
+static const struct snd_pcm_hardware stm32_sai_pcm_hw_spdif = {
+ .info = SNDRV_PCM_INFO_INTERLEAVED,
+ .buffer_bytes_max = 8 * PAGE_SIZE,
+ .period_bytes_min = 1024,
+ .period_bytes_max = PAGE_SIZE,
+ .periods_min = 2,
+ .periods_max = 8,
+};
+
static const struct snd_pcm_hardware stm32_sai_pcm_hw = {
.info = SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_MMAP,
.buffer_bytes_max = 8 * PAGE_SIZE,
@@ -1270,7 +1280,7 @@ static const struct snd_dmaengine_pcm_config stm32_sai_pcm_config = {
};
static const struct snd_dmaengine_pcm_config stm32_sai_pcm_config_spdif = {
- .pcm_hardware = &stm32_sai_pcm_hw,
+ .pcm_hardware = &stm32_sai_pcm_hw_spdif,
.prepare_slave_config = snd_dmaengine_pcm_prepare_slave_config,
.process = stm32_sai_pcm_process_spdif,
};
diff --git a/sound/soc/ti/sdma-pcm.c b/sound/soc/ti/sdma-pcm.c
index a236350..2b0bc23 100644
--- a/sound/soc/ti/sdma-pcm.c
+++ b/sound/soc/ti/sdma-pcm.c
@@ -62,7 +62,7 @@ int sdma_pcm_platform_register(struct device *dev,
config->chan_names[0] = txdmachan;
config->chan_names[1] = rxdmachan;
- return devm_snd_dmaengine_pcm_register(dev, config, 0);
+ return devm_snd_dmaengine_pcm_register(dev, config, flags);
}
EXPORT_SYMBOL_GPL(sdma_pcm_platform_register);
diff --git a/sound/usb/endpoint.c b/sound/usb/endpoint.c
index a2ab8e8..4a9a2f6 100644
--- a/sound/usb/endpoint.c
+++ b/sound/usb/endpoint.c
@@ -388,6 +388,9 @@ static void snd_complete_urb(struct urb *urb)
}
prepare_outbound_urb(ep, ctx);
+ /* can be stopped during prepare callback */
+ if (unlikely(!test_bit(EP_FLAG_RUNNING, &ep->flags)))
+ goto exit_clear;
} else {
retire_inbound_urb(ep, ctx);
/* can be stopped during retire callback */
diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c
index 3fd1d17..45eee5c 100644
--- a/sound/usb/mixer.c
+++ b/sound/usb/mixer.c
@@ -1229,7 +1229,8 @@ static int get_min_max_with_quirks(struct usb_mixer_elem_info *cval,
if (cval->min + cval->res < cval->max) {
int last_valid_res = cval->res;
int saved, test, check;
- get_cur_mix_raw(cval, minchn, &saved);
+ if (get_cur_mix_raw(cval, minchn, &saved) < 0)
+ goto no_res_check;
for (;;) {
test = saved;
if (test < cval->max)
@@ -1249,6 +1250,7 @@ static int get_min_max_with_quirks(struct usb_mixer_elem_info *cval,
snd_usb_set_cur_mix_value(cval, minchn, 0, saved);
}
+no_res_check:
cval->initialized = 1;
}
diff --git a/sound/usb/quirks.c b/sound/usb/quirks.c
index 0bbe120..349e1e5 100644
--- a/sound/usb/quirks.c
+++ b/sound/usb/quirks.c
@@ -248,8 +248,8 @@ static int create_yamaha_midi_quirk(struct snd_usb_audio *chip,
NULL, USB_MS_MIDI_OUT_JACK);
if (!injd && !outjd)
return -ENODEV;
- if (!(injd && snd_usb_validate_midi_desc(injd)) ||
- !(outjd && snd_usb_validate_midi_desc(outjd)))
+ if ((injd && !snd_usb_validate_midi_desc(injd)) ||
+ (outjd && !snd_usb_validate_midi_desc(outjd)))
return -ENODEV;
if (injd && (injd->bLength < 5 ||
(injd->bJackType != USB_MS_EMBEDDED &&
diff --git a/sound/usb/validate.c b/sound/usb/validate.c
index a5e584b..389e865 100644
--- a/sound/usb/validate.c
+++ b/sound/usb/validate.c
@@ -81,9 +81,9 @@ static bool validate_processing_unit(const void *p,
switch (v->protocol) {
case UAC_VERSION_1:
default:
- /* bNrChannels, wChannelConfig, iChannelNames, bControlSize */
- len += 1 + 2 + 1 + 1;
- if (d->bLength < len) /* bControlSize */
+ /* bNrChannels, wChannelConfig, iChannelNames */
+ len += 1 + 2 + 1;
+ if (d->bLength < len + 1) /* bControlSize */
return false;
m = hdr[len];
len += 1 + m + 1; /* bControlSize, bmControls, iProcessing */
diff --git a/tools/gpio/Makefile b/tools/gpio/Makefile
index 6ecdd10..1178d30 100644
--- a/tools/gpio/Makefile
+++ b/tools/gpio/Makefile
@@ -3,7 +3,11 @@
bindir ?= /usr/bin
-ifeq ($(srctree),)
+# This will work when gpio is built in tools env. where srctree
+# isn't set and when invoked from selftests build, where srctree
+# is set to ".". building_out_of_srctree is undefined for in srctree
+# builds
+ifndef building_out_of_srctree
srctree := $(patsubst %/,%,$(dir $(CURDIR)))
srctree := $(patsubst %/,%,$(dir $(srctree)))
endif
diff --git a/tools/perf/perf-sys.h b/tools/perf/perf-sys.h
index 63e4349..15e458e 100644
--- a/tools/perf/perf-sys.h
+++ b/tools/perf/perf-sys.h
@@ -15,7 +15,9 @@ void test_attr__init(void);
void test_attr__open(struct perf_event_attr *attr, pid_t pid, int cpu,
int fd, int group_fd, unsigned long flags);
-#define HAVE_ATTR_TEST
+#ifndef HAVE_ATTR_TEST
+#define HAVE_ATTR_TEST 1
+#endif
static inline int
sys_perf_event_open(struct perf_event_attr *attr,
@@ -27,7 +29,7 @@ sys_perf_event_open(struct perf_event_attr *attr,
fd = syscall(__NR_perf_event_open, attr, pid, cpu,
group_fd, flags);
-#ifdef HAVE_ATTR_TEST
+#if HAVE_ATTR_TEST
if (unlikely(test_attr__enabled))
test_attr__open(attr, pid, cpu, fd, group_fd, flags);
#endif
diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index 679a1d7..7b6eaf5 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -1625,7 +1625,7 @@ int hists__collapse_resort(struct hists *hists, struct ui_progress *prog)
return 0;
}
-static int hist_entry__sort(struct hist_entry *a, struct hist_entry *b)
+static int64_t hist_entry__sort(struct hist_entry *a, struct hist_entry *b)
{
struct hists *hists = a->hists;
struct perf_hpp_fmt *fmt;
diff --git a/tools/perf/util/scripting-engines/trace-event-perl.c b/tools/perf/util/scripting-engines/trace-event-perl.c
index 1596185..741f040 100644
--- a/tools/perf/util/scripting-engines/trace-event-perl.c
+++ b/tools/perf/util/scripting-engines/trace-event-perl.c
@@ -539,10 +539,11 @@ static int perl_stop_script(void)
static int perl_generate_script(struct tep_handle *pevent, const char *outfile)
{
+ int i, not_first, count, nr_events;
+ struct tep_event **all_events;
struct tep_event *event = NULL;
struct tep_format_field *f;
char fname[PATH_MAX];
- int not_first, count;
FILE *ofp;
sprintf(fname, "%s.pl", outfile);
@@ -603,8 +604,11 @@ sub print_backtrace\n\
}\n\n\
");
+ nr_events = tep_get_events_count(pevent);
+ all_events = tep_list_events(pevent, TEP_EVENT_SORT_ID);
- while ((event = trace_find_next_event(pevent, event))) {
+ for (i = 0; all_events && i < nr_events; i++) {
+ event = all_events[i];
fprintf(ofp, "sub %s::%s\n{\n", event->system, event->name);
fprintf(ofp, "\tmy (");
diff --git a/tools/perf/util/scripting-engines/trace-event-python.c b/tools/perf/util/scripting-engines/trace-event-python.c
index 5d341ef..93c03b3 100644
--- a/tools/perf/util/scripting-engines/trace-event-python.c
+++ b/tools/perf/util/scripting-engines/trace-event-python.c
@@ -1687,10 +1687,11 @@ static int python_stop_script(void)
static int python_generate_script(struct tep_handle *pevent, const char *outfile)
{
+ int i, not_first, count, nr_events;
+ struct tep_event **all_events;
struct tep_event *event = NULL;
struct tep_format_field *f;
char fname[PATH_MAX];
- int not_first, count;
FILE *ofp;
sprintf(fname, "%s.py", outfile);
@@ -1735,7 +1736,11 @@ static int python_generate_script(struct tep_handle *pevent, const char *outfile
fprintf(ofp, "def trace_end():\n");
fprintf(ofp, "\tprint(\"in trace_end\")\n\n");
- while ((event = trace_find_next_event(pevent, event))) {
+ nr_events = tep_get_events_count(pevent);
+ all_events = tep_list_events(pevent, TEP_EVENT_SORT_ID);
+
+ for (i = 0; all_events && i < nr_events; i++) {
+ event = all_events[i];
fprintf(ofp, "def %s__%s(", event->system, event->name);
fprintf(ofp, "event_name, ");
fprintf(ofp, "context, ");
diff --git a/tools/perf/util/trace-event-parse.c b/tools/perf/util/trace-event-parse.c
index 5d6bfc7..9634f0a 100644
--- a/tools/perf/util/trace-event-parse.c
+++ b/tools/perf/util/trace-event-parse.c
@@ -173,37 +173,6 @@ int parse_event_file(struct tep_handle *pevent,
return tep_parse_event(pevent, buf, size, sys);
}
-struct tep_event *trace_find_next_event(struct tep_handle *pevent,
- struct tep_event *event)
-{
- static int idx;
- int events_count;
- struct tep_event *all_events;
-
- all_events = tep_get_first_event(pevent);
- events_count = tep_get_events_count(pevent);
- if (!pevent || !all_events || events_count < 1)
- return NULL;
-
- if (!event) {
- idx = 0;
- return all_events;
- }
-
- if (idx < events_count && event == (all_events + idx)) {
- idx++;
- if (idx == events_count)
- return NULL;
- return (all_events + idx);
- }
-
- for (idx = 1; idx < events_count; idx++) {
- if (event == (all_events + (idx - 1)))
- return (all_events + idx);
- }
- return NULL;
-}
-
struct flag {
const char *name;
unsigned long long value;
diff --git a/tools/perf/util/trace-event.h b/tools/perf/util/trace-event.h
index 2e15838..72fdf2a 100644
--- a/tools/perf/util/trace-event.h
+++ b/tools/perf/util/trace-event.h
@@ -47,8 +47,6 @@ void parse_saved_cmdline(struct tep_handle *pevent, char *file, unsigned int siz
ssize_t trace_report(int fd, struct trace_event *tevent, bool repipe);
-struct tep_event *trace_find_next_event(struct tep_handle *pevent,
- struct tep_event *event);
unsigned long long read_size(struct tep_event *event, void *ptr, int size);
unsigned long long eval_flag(const char *flag);
diff --git a/tools/testing/selftests/bpf/test_sysctl.c b/tools/testing/selftests/bpf/test_sysctl.c
index a320e38..7c6e5b1 100644
--- a/tools/testing/selftests/bpf/test_sysctl.c
+++ b/tools/testing/selftests/bpf/test_sysctl.c
@@ -161,9 +161,14 @@ static struct sysctl_test tests[] = {
.descr = "ctx:file_pos sysctl:read read ok narrow",
.insns = {
/* If (file_pos == X) */
+#if __BYTE_ORDER == __LITTLE_ENDIAN
BPF_LDX_MEM(BPF_B, BPF_REG_7, BPF_REG_1,
offsetof(struct bpf_sysctl, file_pos)),
- BPF_JMP_IMM(BPF_JNE, BPF_REG_7, 0, 2),
+#else
+ BPF_LDX_MEM(BPF_B, BPF_REG_7, BPF_REG_1,
+ offsetof(struct bpf_sysctl, file_pos) + 3),
+#endif
+ BPF_JMP_IMM(BPF_JNE, BPF_REG_7, 4, 2),
/* return ALLOW; */
BPF_MOV64_IMM(BPF_REG_0, 1),
@@ -176,6 +181,7 @@ static struct sysctl_test tests[] = {
.attach_type = BPF_CGROUP_SYSCTL,
.sysctl = "kernel/ostype",
.open_flags = O_RDONLY,
+ .seek = 4,
.result = SUCCESS,
},
{
diff --git a/tools/testing/selftests/drivers/net/mlxsw/vxlan.sh b/tools/testing/selftests/drivers/net/mlxsw/vxlan.sh
index ae6146e..4632f51 100755
--- a/tools/testing/selftests/drivers/net/mlxsw/vxlan.sh
+++ b/tools/testing/selftests/drivers/net/mlxsw/vxlan.sh
@@ -112,14 +112,16 @@
RET=0
ip link add dev br0 type bridge mcast_snooping 0
+ ip link add name dummy1 up type dummy
ip link add name vxlan0 up type vxlan id 10 nolearning noudpcsum \
ttl 20 tos inherit local 198.51.100.1 dstport 4789 \
- dev $swp2 group 239.0.0.1
+ dev dummy1 group 239.0.0.1
sanitization_single_dev_test_fail
ip link del dev vxlan0
+ ip link del dev dummy1
ip link del dev br0
log_test "vxlan device with a multicast group"
@@ -181,13 +183,15 @@
RET=0
ip link add dev br0 type bridge mcast_snooping 0
+ ip link add name dummy1 up type dummy
ip link add name vxlan0 up type vxlan id 10 nolearning noudpcsum \
- ttl 20 tos inherit local 198.51.100.1 dstport 4789 dev $swp2
+ ttl 20 tos inherit local 198.51.100.1 dstport 4789 dev dummy1
sanitization_single_dev_test_fail
ip link del dev vxlan0
+ ip link del dev dummy1
ip link del dev br0
log_test "vxlan device with local interface"
diff --git a/tools/testing/selftests/kvm/lib/assert.c b/tools/testing/selftests/kvm/lib/assert.c
index 4911fc7..d1cf9f6 100644
--- a/tools/testing/selftests/kvm/lib/assert.c
+++ b/tools/testing/selftests/kvm/lib/assert.c
@@ -55,7 +55,7 @@ static void test_dump_stack(void)
#pragma GCC diagnostic pop
}
-static pid_t gettid(void)
+static pid_t _gettid(void)
{
return syscall(SYS_gettid);
}
@@ -72,7 +72,7 @@ test_assert(bool exp, const char *exp_str,
fprintf(stderr, "==== Test Assertion Failure ====\n"
" %s:%u: %s\n"
" pid=%d tid=%d - %s\n",
- file, line, exp_str, getpid(), gettid(),
+ file, line, exp_str, getpid(), _gettid(),
strerror(errno));
test_dump_stack();
if (fmt) {
diff --git a/tools/testing/selftests/net/tls.c b/tools/testing/selftests/net/tls.c
index 4c285b6..1c8f194 100644
--- a/tools/testing/selftests/net/tls.c
+++ b/tools/testing/selftests/net/tls.c
@@ -898,6 +898,114 @@ TEST_F(tls, nonblocking)
}
}
+static void
+test_mutliproc(struct __test_metadata *_metadata, struct _test_data_tls *self,
+ bool sendpg, unsigned int n_readers, unsigned int n_writers)
+{
+ const unsigned int n_children = n_readers + n_writers;
+ const size_t data = 6 * 1000 * 1000;
+ const size_t file_sz = data / 100;
+ size_t read_bias, write_bias;
+ int i, fd, child_id;
+ char buf[file_sz];
+ pid_t pid;
+
+ /* Only allow multiples for simplicity */
+ ASSERT_EQ(!(n_readers % n_writers) || !(n_writers % n_readers), true);
+ read_bias = n_writers / n_readers ?: 1;
+ write_bias = n_readers / n_writers ?: 1;
+
+ /* prep a file to send */
+ fd = open("/tmp/", O_TMPFILE | O_RDWR, 0600);
+ ASSERT_GE(fd, 0);
+
+ memset(buf, 0xac, file_sz);
+ ASSERT_EQ(write(fd, buf, file_sz), file_sz);
+
+ /* spawn children */
+ for (child_id = 0; child_id < n_children; child_id++) {
+ pid = fork();
+ ASSERT_NE(pid, -1);
+ if (!pid)
+ break;
+ }
+
+ /* parent waits for all children */
+ if (pid) {
+ for (i = 0; i < n_children; i++) {
+ int status;
+
+ wait(&status);
+ EXPECT_EQ(status, 0);
+ }
+
+ return;
+ }
+
+ /* Split threads for reading and writing */
+ if (child_id < n_readers) {
+ size_t left = data * read_bias;
+ char rb[8001];
+
+ while (left) {
+ int res;
+
+ res = recv(self->cfd, rb,
+ left > sizeof(rb) ? sizeof(rb) : left, 0);
+
+ EXPECT_GE(res, 0);
+ left -= res;
+ }
+ } else {
+ size_t left = data * write_bias;
+
+ while (left) {
+ int res;
+
+ ASSERT_EQ(lseek(fd, 0, SEEK_SET), 0);
+ if (sendpg)
+ res = sendfile(self->fd, fd, NULL,
+ left > file_sz ? file_sz : left);
+ else
+ res = send(self->fd, buf,
+ left > file_sz ? file_sz : left, 0);
+
+ EXPECT_GE(res, 0);
+ left -= res;
+ }
+ }
+}
+
+TEST_F(tls, mutliproc_even)
+{
+ test_mutliproc(_metadata, self, false, 6, 6);
+}
+
+TEST_F(tls, mutliproc_readers)
+{
+ test_mutliproc(_metadata, self, false, 4, 12);
+}
+
+TEST_F(tls, mutliproc_writers)
+{
+ test_mutliproc(_metadata, self, false, 10, 2);
+}
+
+TEST_F(tls, mutliproc_sendpage_even)
+{
+ test_mutliproc(_metadata, self, true, 6, 6);
+}
+
+TEST_F(tls, mutliproc_sendpage_readers)
+{
+ test_mutliproc(_metadata, self, true, 4, 12);
+}
+
+TEST_F(tls, mutliproc_sendpage_writers)
+{
+ test_mutliproc(_metadata, self, true, 10, 2);
+}
+
TEST_F(tls, control_msg)
{
if (self->notls)
diff --git a/tools/testing/selftests/ptp/testptp.c b/tools/testing/selftests/ptp/testptp.c
index bd4a724..c0dd102 100644
--- a/tools/testing/selftests/ptp/testptp.c
+++ b/tools/testing/selftests/ptp/testptp.c
@@ -44,6 +44,46 @@ static int clock_adjtime(clockid_t id, struct timex *tx)
}
#endif
+static void show_flag_test(int rq_index, unsigned int flags, int err)
+{
+ printf("PTP_EXTTS_REQUEST%c flags 0x%08x : (%d) %s\n",
+ rq_index ? '1' + rq_index : ' ',
+ flags, err, strerror(errno));
+ /* sigh, uClibc ... */
+ errno = 0;
+}
+
+static void do_flag_test(int fd, unsigned int index)
+{
+ struct ptp_extts_request extts_request;
+ unsigned long request[2] = {
+ PTP_EXTTS_REQUEST,
+ PTP_EXTTS_REQUEST2,
+ };
+ unsigned int enable_flags[5] = {
+ PTP_ENABLE_FEATURE,
+ PTP_ENABLE_FEATURE | PTP_RISING_EDGE,
+ PTP_ENABLE_FEATURE | PTP_FALLING_EDGE,
+ PTP_ENABLE_FEATURE | PTP_RISING_EDGE | PTP_FALLING_EDGE,
+ PTP_ENABLE_FEATURE | (PTP_EXTTS_VALID_FLAGS + 1),
+ };
+ int err, i, j;
+
+ memset(&extts_request, 0, sizeof(extts_request));
+ extts_request.index = index;
+
+ for (i = 0; i < 2; i++) {
+ for (j = 0; j < 5; j++) {
+ extts_request.flags = enable_flags[j];
+ err = ioctl(fd, request[i], &extts_request);
+ show_flag_test(i, extts_request.flags, err);
+
+ extts_request.flags = 0;
+ err = ioctl(fd, request[i], &extts_request);
+ }
+ }
+}
+
static clockid_t get_clockid(int fd)
{
#define CLOCKFD 3
@@ -96,7 +136,8 @@ static void usage(char *progname)
" -s set the ptp clock time from the system time\n"
" -S set the system time from the ptp clock time\n"
" -t val shift the ptp clock time by 'val' seconds\n"
- " -T val set the ptp clock time to 'val' seconds\n",
+ " -T val set the ptp clock time to 'val' seconds\n"
+ " -z test combinations of rising/falling external time stamp flags\n",
progname);
}
@@ -122,6 +163,7 @@ int main(int argc, char *argv[])
int adjtime = 0;
int capabilities = 0;
int extts = 0;
+ int flagtest = 0;
int gettime = 0;
int index = 0;
int list_pins = 0;
@@ -138,7 +180,7 @@ int main(int argc, char *argv[])
progname = strrchr(argv[0], '/');
progname = progname ? 1+progname : argv[0];
- while (EOF != (c = getopt(argc, argv, "cd:e:f:ghi:k:lL:p:P:sSt:T:v"))) {
+ while (EOF != (c = getopt(argc, argv, "cd:e:f:ghi:k:lL:p:P:sSt:T:z"))) {
switch (c) {
case 'c':
capabilities = 1;
@@ -191,6 +233,9 @@ int main(int argc, char *argv[])
settime = 3;
seconds = atoi(optarg);
break;
+ case 'z':
+ flagtest = 1;
+ break;
case 'h':
usage(progname);
return 0;
@@ -322,6 +367,10 @@ int main(int argc, char *argv[])
}
}
+ if (flagtest) {
+ do_flag_test(fd, index);
+ }
+
if (list_pins) {
int n_pins = 0;
if (ioctl(fd, PTP_CLOCK_GETCAPS, &caps)) {
diff --git a/tools/testing/selftests/vm/gup_benchmark.c b/tools/testing/selftests/vm/gup_benchmark.c
index cb3fc09..485cf06 100644
--- a/tools/testing/selftests/vm/gup_benchmark.c
+++ b/tools/testing/selftests/vm/gup_benchmark.c
@@ -71,7 +71,7 @@ int main(int argc, char **argv)
flags |= MAP_SHARED;
break;
case 'H':
- flags |= MAP_HUGETLB;
+ flags |= (MAP_HUGETLB | MAP_ANONYMOUS);
break;
default:
return -1;
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index d6f0696..13efc29 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -50,6 +50,7 @@
#include <linux/bsearch.h>
#include <linux/io.h>
#include <linux/lockdep.h>
+#include <linux/kthread.h>
#include <asm/processor.h>
#include <asm/ioctl.h>
@@ -121,9 +122,22 @@ static long kvm_vcpu_compat_ioctl(struct file *file, unsigned int ioctl,
unsigned long arg);
#define KVM_COMPAT(c) .compat_ioctl = (c)
#else
+/*
+ * For architectures that don't implement a compat infrastructure,
+ * adopt a double line of defense:
+ * - Prevent a compat task from opening /dev/kvm
+ * - If the open has been done by a 64bit task, and the KVM fd
+ * passed to a compat task, let the ioctls fail.
+ */
static long kvm_no_compat_ioctl(struct file *file, unsigned int ioctl,
unsigned long arg) { return -EINVAL; }
-#define KVM_COMPAT(c) .compat_ioctl = kvm_no_compat_ioctl
+
+static int kvm_no_compat_open(struct inode *inode, struct file *file)
+{
+ return is_compat_task() ? -ENODEV : 0;
+}
+#define KVM_COMPAT(c) .compat_ioctl = kvm_no_compat_ioctl, \
+ .open = kvm_no_compat_open
#endif
static int hardware_enable_all(void);
static void hardware_disable_all(void);
@@ -149,10 +163,30 @@ __weak int kvm_arch_mmu_notifier_invalidate_range(struct kvm *kvm,
return 0;
}
+bool kvm_is_zone_device_pfn(kvm_pfn_t pfn)
+{
+ /*
+ * The metadata used by is_zone_device_page() to determine whether or
+ * not a page is ZONE_DEVICE is guaranteed to be valid if and only if
+ * the device has been pinned, e.g. by get_user_pages(). WARN if the
+ * page_count() is zero to help detect bad usage of this helper.
+ */
+ if (!pfn_valid(pfn) || WARN_ON_ONCE(!page_count(pfn_to_page(pfn))))
+ return false;
+
+ return is_zone_device_page(pfn_to_page(pfn));
+}
+
bool kvm_is_reserved_pfn(kvm_pfn_t pfn)
{
+ /*
+ * ZONE_DEVICE pages currently set PG_reserved, but from a refcounting
+ * perspective they are "normal" pages, albeit with slightly different
+ * usage rules.
+ */
if (pfn_valid(pfn))
- return PageReserved(pfn_to_page(pfn));
+ return PageReserved(pfn_to_page(pfn)) &&
+ !kvm_is_zone_device_pfn(pfn);
return true;
}
@@ -625,6 +659,23 @@ static int kvm_create_vm_debugfs(struct kvm *kvm, int fd)
return 0;
}
+/*
+ * Called after the VM is otherwise initialized, but just before adding it to
+ * the vm_list.
+ */
+int __weak kvm_arch_post_init_vm(struct kvm *kvm)
+{
+ return 0;
+}
+
+/*
+ * Called just after removing the VM from the vm_list, but before doing any
+ * other destruction.
+ */
+void __weak kvm_arch_pre_destroy_vm(struct kvm *kvm)
+{
+}
+
static struct kvm *kvm_create_vm(unsigned long type)
{
struct kvm *kvm = kvm_arch_alloc_vm();
@@ -645,6 +696,12 @@ static struct kvm *kvm_create_vm(unsigned long type)
BUILD_BUG_ON(KVM_MEM_SLOTS_NUM > SHRT_MAX);
+ if (init_srcu_struct(&kvm->srcu))
+ goto out_err_no_srcu;
+ if (init_srcu_struct(&kvm->irq_srcu))
+ goto out_err_no_irq_srcu;
+
+ refcount_set(&kvm->users_count, 1);
for (i = 0; i < KVM_ADDRESS_SPACE_NUM; i++) {
struct kvm_memslots *slots = kvm_alloc_memslots();
@@ -662,7 +719,6 @@ static struct kvm *kvm_create_vm(unsigned long type)
goto out_err_no_arch_destroy_vm;
}
- refcount_set(&kvm->users_count, 1);
r = kvm_arch_init_vm(kvm, type);
if (r)
goto out_err_no_arch_destroy_vm;
@@ -675,13 +731,12 @@ static struct kvm *kvm_create_vm(unsigned long type)
INIT_HLIST_HEAD(&kvm->irq_ack_notifier_list);
#endif
- if (init_srcu_struct(&kvm->srcu))
- goto out_err_no_srcu;
- if (init_srcu_struct(&kvm->irq_srcu))
- goto out_err_no_irq_srcu;
-
r = kvm_init_mmu_notifier(kvm);
if (r)
+ goto out_err_no_mmu_notifier;
+
+ r = kvm_arch_post_init_vm(kvm);
+ if (r)
goto out_err;
mutex_lock(&kvm_lock);
@@ -693,19 +748,24 @@ static struct kvm *kvm_create_vm(unsigned long type)
return kvm;
out_err:
- cleanup_srcu_struct(&kvm->irq_srcu);
-out_err_no_irq_srcu:
- cleanup_srcu_struct(&kvm->srcu);
-out_err_no_srcu:
+#if defined(CONFIG_MMU_NOTIFIER) && defined(KVM_ARCH_WANT_MMU_NOTIFIER)
+ if (kvm->mmu_notifier.ops)
+ mmu_notifier_unregister(&kvm->mmu_notifier, current->mm);
+#endif
+out_err_no_mmu_notifier:
hardware_disable_all();
out_err_no_disable:
kvm_arch_destroy_vm(kvm);
- WARN_ON_ONCE(!refcount_dec_and_test(&kvm->users_count));
out_err_no_arch_destroy_vm:
+ WARN_ON_ONCE(!refcount_dec_and_test(&kvm->users_count));
for (i = 0; i < KVM_NR_BUSES; i++)
kfree(kvm_get_bus(kvm, i));
for (i = 0; i < KVM_ADDRESS_SPACE_NUM; i++)
kvm_free_memslots(kvm, __kvm_memslots(kvm, i));
+ cleanup_srcu_struct(&kvm->irq_srcu);
+out_err_no_irq_srcu:
+ cleanup_srcu_struct(&kvm->srcu);
+out_err_no_srcu:
kvm_arch_free_vm(kvm);
mmdrop(current->mm);
return ERR_PTR(r);
@@ -737,6 +797,8 @@ static void kvm_destroy_vm(struct kvm *kvm)
mutex_lock(&kvm_lock);
list_del(&kvm->vm_list);
mutex_unlock(&kvm_lock);
+ kvm_arch_pre_destroy_vm(kvm);
+
kvm_free_irq_routing(kvm);
for (i = 0; i < KVM_NR_BUSES; i++) {
struct kvm_io_bus *bus = kvm_get_bus(kvm, i);
@@ -1857,7 +1919,7 @@ EXPORT_SYMBOL_GPL(kvm_release_pfn_dirty);
void kvm_set_pfn_dirty(kvm_pfn_t pfn)
{
- if (!kvm_is_reserved_pfn(pfn)) {
+ if (!kvm_is_reserved_pfn(pfn) && !kvm_is_zone_device_pfn(pfn)) {
struct page *page = pfn_to_page(pfn);
SetPageDirty(page);
@@ -1867,7 +1929,7 @@ EXPORT_SYMBOL_GPL(kvm_set_pfn_dirty);
void kvm_set_pfn_accessed(kvm_pfn_t pfn)
{
- if (!kvm_is_reserved_pfn(pfn))
+ if (!kvm_is_reserved_pfn(pfn) && !kvm_is_zone_device_pfn(pfn))
mark_page_accessed(pfn_to_page(pfn));
}
EXPORT_SYMBOL_GPL(kvm_set_pfn_accessed);
@@ -4371,3 +4433,86 @@ void kvm_exit(void)
kvm_vfio_ops_exit();
}
EXPORT_SYMBOL_GPL(kvm_exit);
+
+struct kvm_vm_worker_thread_context {
+ struct kvm *kvm;
+ struct task_struct *parent;
+ struct completion init_done;
+ kvm_vm_thread_fn_t thread_fn;
+ uintptr_t data;
+ int err;
+};
+
+static int kvm_vm_worker_thread(void *context)
+{
+ /*
+ * The init_context is allocated on the stack of the parent thread, so
+ * we have to locally copy anything that is needed beyond initialization
+ */
+ struct kvm_vm_worker_thread_context *init_context = context;
+ struct kvm *kvm = init_context->kvm;
+ kvm_vm_thread_fn_t thread_fn = init_context->thread_fn;
+ uintptr_t data = init_context->data;
+ int err;
+
+ err = kthread_park(current);
+ /* kthread_park(current) is never supposed to return an error */
+ WARN_ON(err != 0);
+ if (err)
+ goto init_complete;
+
+ err = cgroup_attach_task_all(init_context->parent, current);
+ if (err) {
+ kvm_err("%s: cgroup_attach_task_all failed with err %d\n",
+ __func__, err);
+ goto init_complete;
+ }
+
+ set_user_nice(current, task_nice(init_context->parent));
+
+init_complete:
+ init_context->err = err;
+ complete(&init_context->init_done);
+ init_context = NULL;
+
+ if (err)
+ return err;
+
+ /* Wait to be woken up by the spawner before proceeding. */
+ kthread_parkme();
+
+ if (!kthread_should_stop())
+ err = thread_fn(kvm, data);
+
+ return err;
+}
+
+int kvm_vm_create_worker_thread(struct kvm *kvm, kvm_vm_thread_fn_t thread_fn,
+ uintptr_t data, const char *name,
+ struct task_struct **thread_ptr)
+{
+ struct kvm_vm_worker_thread_context init_context = {};
+ struct task_struct *thread;
+
+ *thread_ptr = NULL;
+ init_context.kvm = kvm;
+ init_context.parent = current;
+ init_context.thread_fn = thread_fn;
+ init_context.data = data;
+ init_completion(&init_context.init_done);
+
+ thread = kthread_run(kvm_vm_worker_thread, &init_context,
+ "%s-%d", name, task_pid_nr(current));
+ if (IS_ERR(thread))
+ return PTR_ERR(thread);
+
+ /* kthread_run is never supposed to return NULL */
+ WARN_ON(thread == NULL);
+
+ wait_for_completion(&init_context.init_done);
+
+ if (!init_context.err)
+ *thread_ptr = thread;
+
+ return init_context.err;
+}