Merge branches 'pm-core', 'pm-sleep', 'pm-acpi' and 'pm-domains'
* pm-core:
PM: runtime: Add pm_runtime_get_if_active()
* pm-sleep:
PM: sleep: wakeup: Skip wakeup_source_sysfs_remove() if device is not there
PM / hibernate: Remove unnecessary compat ioctl overrides
PM: hibernate: fix docs for ioctls that return loff_t via pointer
PM: sleep: wakeup: Use built-in RCU list checking
PM: sleep: core: Use built-in RCU list checking
* pm-acpi:
ACPI: PM: s2idle: Refine active GPEs check
ACPICA: Allow acpi_any_gpe_status_set() to skip one GPE
ACPI: PM: s2idle: Fix comment in acpi_s2idle_prepare_late()
* pm-domains:
cpuidle: psci: Split psci_dt_cpu_init_idle()
PM / Domains: Allow no domain-idle-states DT property in genpd when parsing
diff --git a/Documentation/admin-guide/pm/cpuidle.rst b/Documentation/admin-guide/pm/cpuidle.rst
index 6a06dc4..5605cc6 100644
--- a/Documentation/admin-guide/pm/cpuidle.rst
+++ b/Documentation/admin-guide/pm/cpuidle.rst
@@ -583,20 +583,17 @@
The power management quality of service (PM QoS) framework in the Linux kernel
allows kernel code and user space processes to set constraints on various
energy-efficiency features of the kernel to prevent performance from dropping
-below a required level. The PM QoS constraints can be set globally, in
-predefined categories referred to as PM QoS classes, or against individual
-devices.
+below a required level.
CPU idle time management can be affected by PM QoS in two ways, through the
-global constraint in the ``PM_QOS_CPU_DMA_LATENCY`` class and through the
-resume latency constraints for individual CPUs. Kernel code (e.g. device
-drivers) can set both of them with the help of special internal interfaces
-provided by the PM QoS framework. User space can modify the former by opening
-the :file:`cpu_dma_latency` special device file under :file:`/dev/` and writing
-a binary value (interpreted as a signed 32-bit integer) to it. In turn, the
-resume latency constraint for a CPU can be modified by user space by writing a
-string (representing a signed 32-bit integer) to the
-:file:`power/pm_qos_resume_latency_us` file under
+global CPU latency limit and through the resume latency constraints for
+individual CPUs. Kernel code (e.g. device drivers) can set both of them with
+the help of special internal interfaces provided by the PM QoS framework. User
+space can modify the former by opening the :file:`cpu_dma_latency` special
+device file under :file:`/dev/` and writing a binary value (interpreted as a
+signed 32-bit integer) to it. In turn, the resume latency constraint for a CPU
+can be modified from user space by writing a string (representing a signed
+32-bit integer) to the :file:`power/pm_qos_resume_latency_us` file under
:file:`/sys/devices/system/cpu/cpu<N>/` in ``sysfs``, where the CPU number
``<N>`` is allocated at the system initialization time. Negative values
will be rejected in both cases and, also in both cases, the written integer
@@ -605,32 +602,34 @@
The requested value is not automatically applied as a new constraint, however,
as it may be less restrictive (greater in this particular case) than another
constraint previously requested by someone else. For this reason, the PM QoS
-framework maintains a list of requests that have been made so far in each
-global class and for each device, aggregates them and applies the effective
-(minimum in this particular case) value as the new constraint.
+framework maintains a list of requests that have been made so far for the
+global CPU latency limit and for each individual CPU, aggregates them and
+applies the effective (minimum in this particular case) value as the new
+constraint.
In fact, opening the :file:`cpu_dma_latency` special device file causes a new
-PM QoS request to be created and added to the priority list of requests in the
-``PM_QOS_CPU_DMA_LATENCY`` class and the file descriptor coming from the
-"open" operation represents that request. If that file descriptor is then
-used for writing, the number written to it will be associated with the PM QoS
-request represented by it as a new requested constraint value. Next, the
-priority list mechanism will be used to determine the new effective value of
-the entire list of requests and that effective value will be set as a new
-constraint. Thus setting a new requested constraint value will only change the
-real constraint if the effective "list" value is affected by it. In particular,
-for the ``PM_QOS_CPU_DMA_LATENCY`` class it only affects the real constraint if
-it is the minimum of the requested constraints in the list. The process holding
-a file descriptor obtained by opening the :file:`cpu_dma_latency` special device
-file controls the PM QoS request associated with that file descriptor, but it
-controls this particular PM QoS request only.
+PM QoS request to be created and added to a global priority list of CPU latency
+limit requests and the file descriptor coming from the "open" operation
+represents that request. If that file descriptor is then used for writing, the
+number written to it will be associated with the PM QoS request represented by
+it as a new requested limit value. Next, the priority list mechanism will be
+used to determine the new effective value of the entire list of requests and
+that effective value will be set as a new CPU latency limit. Thus requesting a
+new limit value will only change the real limit if the effective "list" value is
+affected by it, which is the case if it is the minimum of the requested values
+in the list.
+
+The process holding a file descriptor obtained by opening the
+:file:`cpu_dma_latency` special device file controls the PM QoS request
+associated with that file descriptor, but it controls this particular PM QoS
+request only.
Closing the :file:`cpu_dma_latency` special device file or, more precisely, the
file descriptor obtained while opening it, causes the PM QoS request associated
-with that file descriptor to be removed from the ``PM_QOS_CPU_DMA_LATENCY``
-class priority list and destroyed. If that happens, the priority list mechanism
-will be used, again, to determine the new effective value for the whole list
-and that value will become the new real constraint.
+with that file descriptor to be removed from the global priority list of CPU
+latency limit requests and destroyed. If that happens, the priority list
+mechanism will be used again, to determine the new effective value for the whole
+list and that value will become the new limit.
In turn, for each CPU there is one resume latency PM QoS request associated with
the :file:`power/pm_qos_resume_latency_us` file under
@@ -647,10 +646,10 @@
(there may be other requests coming from kernel code in that list).
CPU idle time governors are expected to regard the minimum of the global
-effective ``PM_QOS_CPU_DMA_LATENCY`` class constraint and the effective
-resume latency constraint for the given CPU as the upper limit for the exit
-latency of the idle states they can select for that CPU. They should never
-select any idle states with exit latency beyond that limit.
+(effective) CPU latency limit and the effective resume latency constraint for
+the given CPU as the upper limit for the exit latency of the idle states that
+they are allowed to select for that CPU. They should never select any idle
+states with exit latency beyond that limit.
Idle States Control Via Kernel Command Line
diff --git a/Documentation/admin-guide/pm/intel_pstate.rst b/Documentation/admin-guide/pm/intel_pstate.rst
index 67e414e..ad392f3 100644
--- a/Documentation/admin-guide/pm/intel_pstate.rst
+++ b/Documentation/admin-guide/pm/intel_pstate.rst
@@ -734,10 +734,10 @@
==========
.. [1] Kristen Accardi, *Balancing Power and Performance in the Linux Kernel*,
- http://events.linuxfoundation.org/sites/events/files/slides/LinuxConEurope_2015.pdf
+ https://events.static.linuxfound.org/sites/events/files/slides/LinuxConEurope_2015.pdf
.. [2] *Intel® 64 and IA-32 Architectures Software Developer’s Manual Volume 3: System Programming Guide*,
- http://www.intel.com/content/www/us/en/architecture-and-technology/64-ia-32-architectures-software-developer-system-programming-manual-325384.html
+ https://www.intel.com/content/www/us/en/architecture-and-technology/64-ia-32-architectures-software-developer-system-programming-manual-325384.html
.. [3] *Advanced Configuration and Power Interface Specification*,
https://uefi.org/sites/default/files/resources/ACPI_6_3_final_Jan30.pdf
diff --git a/Documentation/devicetree/bindings/opp/qcom-nvmem-cpufreq.txt b/Documentation/devicetree/bindings/opp/qcom-nvmem-cpufreq.txt
index 4751029..64f0741 100644
--- a/Documentation/devicetree/bindings/opp/qcom-nvmem-cpufreq.txt
+++ b/Documentation/devicetree/bindings/opp/qcom-nvmem-cpufreq.txt
@@ -19,7 +19,8 @@
In 'operating-points-v2' table:
- compatible: Should be
- - 'operating-points-v2-kryo-cpu' for apq8096 and msm8996.
+ - 'operating-points-v2-kryo-cpu' for apq8096, msm8996, msm8974,
+ apq8064, ipq8064, msm8960 and ipq8074.
Optional properties:
--------------------
diff --git a/Documentation/kbuild/kbuild.rst b/Documentation/kbuild/kbuild.rst
index f1e5dce..510f38d 100644
--- a/Documentation/kbuild/kbuild.rst
+++ b/Documentation/kbuild/kbuild.rst
@@ -237,7 +237,7 @@
KBUILD_EXTRA_SYMBOLS
--------------------
For modules that use symbols from other modules.
-See more details in modules.txt.
+See more details in modules.rst.
ALLSOURCE_ARCHS
---------------
diff --git a/Documentation/kbuild/kconfig-macro-language.rst b/Documentation/kbuild/kconfig-macro-language.rst
index 35b3263..8b413ef 100644
--- a/Documentation/kbuild/kconfig-macro-language.rst
+++ b/Documentation/kbuild/kconfig-macro-language.rst
@@ -44,7 +44,7 @@
def_bool y
Then, Kconfig moves onto the evaluation stage to resolve inter-symbol
-dependency as explained in kconfig-language.txt.
+dependency as explained in kconfig-language.rst.
Variables
diff --git a/Documentation/kbuild/makefiles.rst b/Documentation/kbuild/makefiles.rst
index 6bc126a..04d5c01 100644
--- a/Documentation/kbuild/makefiles.rst
+++ b/Documentation/kbuild/makefiles.rst
@@ -924,7 +924,7 @@
$(KBUILD_AFLAGS_MODULE) is used to add arch-specific options that
are used for assembler.
- From commandline AFLAGS_MODULE shall be used (see kbuild.txt).
+ From commandline AFLAGS_MODULE shall be used (see kbuild.rst).
KBUILD_CFLAGS_KERNEL
$(CC) options specific for built-in
@@ -937,7 +937,7 @@
$(KBUILD_CFLAGS_MODULE) is used to add arch-specific options that
are used for $(CC).
- From commandline CFLAGS_MODULE shall be used (see kbuild.txt).
+ From commandline CFLAGS_MODULE shall be used (see kbuild.rst).
KBUILD_LDFLAGS_MODULE
Options for $(LD) when linking modules
@@ -945,7 +945,7 @@
$(KBUILD_LDFLAGS_MODULE) is used to add arch-specific options
used when linking modules. This is often a linker script.
- From commandline LDFLAGS_MODULE shall be used (see kbuild.txt).
+ From commandline LDFLAGS_MODULE shall be used (see kbuild.rst).
KBUILD_LDS
diff --git a/Documentation/kbuild/modules.rst b/Documentation/kbuild/modules.rst
index 69fa48e..e0b45a2 100644
--- a/Documentation/kbuild/modules.rst
+++ b/Documentation/kbuild/modules.rst
@@ -470,9 +470,9 @@
The syntax of the Module.symvers file is::
- <CRC> <Symbol> <Namespace> <Module> <Export Type>
+ <CRC> <Symbol> <Module> <Export Type> <Namespace>
- 0xe1cc2a05 usb_stor_suspend USB_STORAGE drivers/usb/storage/usb-storage EXPORT_SYMBOL_GPL
+ 0xe1cc2a05 usb_stor_suspend drivers/usb/storage/usb-storage EXPORT_SYMBOL_GPL USB_STORAGE
The fields are separated by tabs and values may be empty (e.g.
if no namespace is defined for an exported symbol).
diff --git a/Documentation/power/pm_qos_interface.rst b/Documentation/power/pm_qos_interface.rst
index 0d62d50..69b0fe3 100644
--- a/Documentation/power/pm_qos_interface.rst
+++ b/Documentation/power/pm_qos_interface.rst
@@ -7,86 +7,78 @@
one of the parameters.
Two different PM QoS frameworks are available:
-1. PM QoS classes for cpu_dma_latency
-2. The per-device PM QoS framework provides the API to manage the
+ * CPU latency QoS.
+ * The per-device PM QoS framework provides the API to manage the
per-device latency constraints and PM QoS flags.
-Each parameters have defined units:
-
- * latency: usec
- * timeout: usec
- * throughput: kbs (kilo bit / sec)
- * memory bandwidth: mbs (mega bit / sec)
+The latency unit used in the PM QoS framework is the microsecond (usec).
1. PM QoS framework
===================
-The infrastructure exposes multiple misc device nodes one per implemented
-parameter. The set of parameters implement is defined by pm_qos_power_init()
-and pm_qos_params.h. This is done because having the available parameters
-being runtime configurable or changeable from a driver was seen as too easy to
-abuse.
+A global list of CPU latency QoS requests is maintained along with an aggregated
+(effective) target value. The aggregated target value is updated with changes
+to the request list or elements of the list. For CPU latency QoS, the
+aggregated target value is simply the min of the request values held in the list
+elements.
-For each parameter a list of performance requests is maintained along with
-an aggregated target value. The aggregated target value is updated with
-changes to the request list or elements of the list. Typically the
-aggregated target value is simply the max or min of the request values held
-in the parameter list elements.
Note: the aggregated target value is implemented as an atomic variable so that
reading the aggregated value does not require any locking mechanism.
+From kernel space the use of this interface is simple:
-From kernel mode the use of this interface is simple:
+void cpu_latency_qos_add_request(handle, target_value):
+ Will insert an element into the CPU latency QoS list with the target value.
+ Upon change to this list the new target is recomputed and any registered
+ notifiers are called only if the target value is now different.
+ Clients of PM QoS need to save the returned handle for future use in other
+ PM QoS API functions.
-void pm_qos_add_request(handle, param_class, target_value):
- Will insert an element into the list for that identified PM QoS class with the
- target value. Upon change to this list the new target is recomputed and any
- registered notifiers are called only if the target value is now different.
- Clients of pm_qos need to save the returned handle for future use in other
- pm_qos API functions.
-
-void pm_qos_update_request(handle, new_target_value):
+void cpu_latency_qos_update_request(handle, new_target_value):
Will update the list element pointed to by the handle with the new target
value and recompute the new aggregated target, calling the notification tree
if the target is changed.
-void pm_qos_remove_request(handle):
+void cpu_latency_qos_remove_request(handle):
Will remove the element. After removal it will update the aggregate target
and call the notification tree if the target was changed as a result of
removing the request.
-int pm_qos_request(param_class):
- Returns the aggregated value for a given PM QoS class.
+int cpu_latency_qos_limit():
+ Returns the aggregated value for the CPU latency QoS.
-int pm_qos_request_active(handle):
- Returns if the request is still active, i.e. it has not been removed from a
- PM QoS class constraints list.
+int cpu_latency_qos_request_active(handle):
+ Returns if the request is still active, i.e. it has not been removed from the
+ CPU latency QoS list.
-int pm_qos_add_notifier(param_class, notifier):
- Adds a notification callback function to the PM QoS class. The callback is
- called when the aggregated value for the PM QoS class is changed.
+int cpu_latency_qos_add_notifier(notifier):
+ Adds a notification callback function to the CPU latency QoS. The callback is
+ called when the aggregated value for the CPU latency QoS is changed.
-int pm_qos_remove_notifier(int param_class, notifier):
- Removes the notification callback function for the PM QoS class.
+int cpu_latency_qos_remove_notifier(notifier):
+ Removes the notification callback function from the CPU latency QoS.
-From user mode:
+From user space:
-Only processes can register a pm_qos request. To provide for automatic
+The infrastructure exposes one device node, /dev/cpu_dma_latency, for the CPU
+latency QoS.
+
+Only processes can register a PM QoS request. To provide for automatic
cleanup of a process, the interface requires the process to register its
-parameter requests in the following way:
+parameter requests as follows.
-To register the default pm_qos target for the specific parameter, the process
-must open /dev/cpu_dma_latency
+To register the default PM QoS target for the CPU latency QoS, the process must
+open /dev/cpu_dma_latency.
As long as the device node is held open that process has a registered
request on the parameter.
-To change the requested target value the process needs to write an s32 value to
-the open device node. Alternatively the user mode program could write a hex
-string for the value using 10 char long format e.g. "0x12345678". This
-translates to a pm_qos_update_request call.
+To change the requested target value, the process needs to write an s32 value to
+the open device node. Alternatively, it can write a hex string for the value
+using the 10 char long format e.g. "0x12345678". This translates to a
+cpu_latency_qos_update_request() call.
To remove the user mode request for a target value simply close the device
node.
diff --git a/Documentation/power/runtime_pm.rst b/Documentation/power/runtime_pm.rst
index ab8406c..0553008 100644
--- a/Documentation/power/runtime_pm.rst
+++ b/Documentation/power/runtime_pm.rst
@@ -382,6 +382,12 @@
nonzero, increment the counter and return 1; otherwise return 0 without
changing the counter
+ `int pm_runtime_get_if_active(struct device *dev, bool ign_usage_count);`
+ - return -EINVAL if 'power.disable_depth' is nonzero; otherwise, if the
+ runtime PM status is RPM_ACTIVE, and either ign_usage_count is true
+ or the device's usage_count is non-zero, increment the counter and
+ return 1; otherwise return 0 without changing the counter
+
`void pm_runtime_put_noidle(struct device *dev);`
- decrement the device's usage counter
diff --git a/Documentation/power/userland-swsusp.rst b/Documentation/power/userland-swsusp.rst
index a0fa51b..1cf62d8 100644
--- a/Documentation/power/userland-swsusp.rst
+++ b/Documentation/power/userland-swsusp.rst
@@ -69,11 +69,13 @@
SNAPSHOT_GET_IMAGE_SIZE
return the actual size of the hibernation image
+ (the last argument should be a pointer to a loff_t variable that
+ will contain the result if the call is successful)
SNAPSHOT_AVAIL_SWAP_SIZE
- return the amount of available swap in bytes (the
- last argument should be a pointer to an unsigned int variable that will
- contain the result if the call is successful).
+ return the amount of available swap in bytes
+ (the last argument should be a pointer to a loff_t variable that
+ will contain the result if the call is successful)
SNAPSHOT_ALLOC_SWAP_PAGE
allocate a swap page from the resume partition
diff --git a/Documentation/trace/events-power.rst b/Documentation/trace/events-power.rst
index 2ef3189..f45bf11 100644
--- a/Documentation/trace/events-power.rst
+++ b/Documentation/trace/events-power.rst
@@ -75,16 +75,6 @@
target/flags update.
::
- pm_qos_add_request "pm_qos_class=%s value=%d"
- pm_qos_update_request "pm_qos_class=%s value=%d"
- pm_qos_remove_request "pm_qos_class=%s value=%d"
- pm_qos_update_request_timeout "pm_qos_class=%s value=%d, timeout_us=%ld"
-
-The first parameter gives the QoS class name (e.g. "CPU_DMA_LATENCY").
-The second parameter is value to be added/updated/removed.
-The third parameter is timeout value in usec.
-::
-
pm_qos_update_target "action=%s prev_value=%d curr_value=%d"
pm_qos_update_flags "action=%s prev_value=0x%x curr_value=0x%x"
@@ -92,7 +82,7 @@
The second parameter is the previous QoS value.
The third parameter is the current QoS value to update.
-And, there are also events used for device PM QoS add/update/remove request.
+There are also events used for device PM QoS add/update/remove request.
::
dev_pm_qos_add_request "device=%s type=%s new_value=%d"
@@ -103,3 +93,12 @@
QoS requests.
The second parameter gives the request type (e.g. "DEV_PM_QOS_RESUME_LATENCY").
The third parameter is value to be added/updated/removed.
+
+And, there are events used for CPU latency QoS add/update/remove request.
+::
+
+ pm_qos_add_request "value=%d"
+ pm_qos_update_request "value=%d"
+ pm_qos_remove_request "value=%d"
+
+The parameter is the value to be added/updated/removed.
diff --git a/Makefile b/Makefile
index 171f2b0..e56bf7e 100644
--- a/Makefile
+++ b/Makefile
@@ -2,7 +2,7 @@
VERSION = 5
PATCHLEVEL = 6
SUBLEVEL = 0
-EXTRAVERSION = -rc6
+EXTRAVERSION = -rc7
NAME = Kleptomaniac Octopus
# *DOCUMENTATION*
@@ -1804,7 +1804,7 @@
-include $(foreach f,$(existing-targets),$(dir $(f)).$(notdir $(f)).cmd)
-endif # config-targets
+endif # config-build
endif # mixed-build
endif # need-sub-make
diff --git a/arch/arm/Makefile b/arch/arm/Makefile
index db857d0..1fc32b6 100644
--- a/arch/arm/Makefile
+++ b/arch/arm/Makefile
@@ -307,13 +307,15 @@
ifeq ($(CONFIG_STACKPROTECTOR_PER_TASK),y)
prepare: stack_protector_prepare
stack_protector_prepare: prepare0
- $(eval KBUILD_CFLAGS += \
+ $(eval SSP_PLUGIN_CFLAGS := \
-fplugin-arg-arm_ssp_per_task_plugin-tso=$(shell \
awk '{if ($$2 == "THREAD_SZ_ORDER") print $$3;}'\
include/generated/asm-offsets.h) \
-fplugin-arg-arm_ssp_per_task_plugin-offset=$(shell \
awk '{if ($$2 == "TI_STACK_CANARY") print $$3;}'\
include/generated/asm-offsets.h))
+ $(eval KBUILD_CFLAGS += $(SSP_PLUGIN_CFLAGS))
+ $(eval GCC_PLUGINS_CFLAGS += $(SSP_PLUGIN_CFLAGS))
endif
all: $(notdir $(KBUILD_IMAGE))
diff --git a/arch/arm/boot/compressed/Makefile b/arch/arm/boot/compressed/Makefile
index da599c3..9c11e74 100644
--- a/arch/arm/boot/compressed/Makefile
+++ b/arch/arm/boot/compressed/Makefile
@@ -101,7 +101,6 @@
$(libfdt) $(libfdt_hdrs) hyp-stub.S
KBUILD_CFLAGS += -DDISABLE_BRANCH_PROFILING
-KBUILD_CFLAGS += $(DISABLE_ARM_SSP_PER_TASK_PLUGIN)
ifeq ($(CONFIG_FUNCTION_TRACER),y)
ORIG_CFLAGS := $(KBUILD_CFLAGS)
@@ -117,7 +116,8 @@
CFLAGS_fdt_rw.o := $(nossp-flags-y)
CFLAGS_fdt_wip.o := $(nossp-flags-y)
-ccflags-y := -fpic $(call cc-option,-mno-single-pic-base,) -fno-builtin -I$(obj)
+ccflags-y := -fpic $(call cc-option,-mno-single-pic-base,) -fno-builtin \
+ -I$(obj) $(DISABLE_ARM_SSP_PER_TASK_PLUGIN)
asflags-y := -DZIMAGE
# Supply kernel BSS size to the decompressor via a linker symbol.
diff --git a/arch/arm/kernel/vdso.c b/arch/arm/kernel/vdso.c
index c89ac1b..e0330a2 100644
--- a/arch/arm/kernel/vdso.c
+++ b/arch/arm/kernel/vdso.c
@@ -95,6 +95,8 @@ static bool __init cntvct_functional(void)
*/
np = of_find_compatible_node(NULL, NULL, "arm,armv7-timer");
if (!np)
+ np = of_find_compatible_node(NULL, NULL, "arm,armv8-timer");
+ if (!np)
goto out_put;
if (of_property_read_bool(np, "arm,cpu-registers-not-fw-configured"))
diff --git a/arch/arm/lib/copy_from_user.S b/arch/arm/lib/copy_from_user.S
index 95b2e1c..f8016e3 100644
--- a/arch/arm/lib/copy_from_user.S
+++ b/arch/arm/lib/copy_from_user.S
@@ -118,7 +118,7 @@
ENDPROC(arm_copy_from_user)
- .pushsection .fixup,"ax"
+ .pushsection .text.fixup,"ax"
.align 0
copy_abort_preamble
ldmfd sp!, {r1, r2, r3}
diff --git a/arch/arm64/include/asm/mmu.h b/arch/arm64/include/asm/mmu.h
index e4d8624..d79ce6d 100644
--- a/arch/arm64/include/asm/mmu.h
+++ b/arch/arm64/include/asm/mmu.h
@@ -29,11 +29,9 @@ typedef struct {
*/
#define ASID(mm) ((mm)->context.id.counter & 0xffff)
-extern bool arm64_use_ng_mappings;
-
static inline bool arm64_kernel_unmapped_at_el0(void)
{
- return arm64_use_ng_mappings;
+ return cpus_have_const_cap(ARM64_UNMAP_KERNEL_AT_EL0);
}
typedef void (*bp_hardening_cb_t)(void);
diff --git a/arch/arm64/include/asm/pgtable-prot.h b/arch/arm64/include/asm/pgtable-prot.h
index 6f87839..1305e28 100644
--- a/arch/arm64/include/asm/pgtable-prot.h
+++ b/arch/arm64/include/asm/pgtable-prot.h
@@ -23,11 +23,13 @@
#include <asm/pgtable-types.h>
+extern bool arm64_use_ng_mappings;
+
#define _PROT_DEFAULT (PTE_TYPE_PAGE | PTE_AF | PTE_SHARED)
#define _PROT_SECT_DEFAULT (PMD_TYPE_SECT | PMD_SECT_AF | PMD_SECT_S)
-#define PTE_MAYBE_NG (arm64_kernel_unmapped_at_el0() ? PTE_NG : 0)
-#define PMD_MAYBE_NG (arm64_kernel_unmapped_at_el0() ? PMD_SECT_NG : 0)
+#define PTE_MAYBE_NG (arm64_use_ng_mappings ? PTE_NG : 0)
+#define PMD_MAYBE_NG (arm64_use_ng_mappings ? PMD_SECT_NG : 0)
#define PROT_DEFAULT (_PROT_DEFAULT | PTE_MAYBE_NG)
#define PROT_SECT_DEFAULT (_PROT_SECT_DEFAULT | PMD_MAYBE_NG)
diff --git a/arch/arm64/include/asm/unistd.h b/arch/arm64/include/asm/unistd.h
index 1dd22da..803039d 100644
--- a/arch/arm64/include/asm/unistd.h
+++ b/arch/arm64/include/asm/unistd.h
@@ -25,8 +25,8 @@
#define __NR_compat_gettimeofday 78
#define __NR_compat_sigreturn 119
#define __NR_compat_rt_sigreturn 173
-#define __NR_compat_clock_getres 247
#define __NR_compat_clock_gettime 263
+#define __NR_compat_clock_getres 264
#define __NR_compat_clock_gettime64 403
#define __NR_compat_clock_getres_time64 406
diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c
index d4ed9a1..5407bf5 100644
--- a/arch/arm64/kernel/smp.c
+++ b/arch/arm64/kernel/smp.c
@@ -958,11 +958,22 @@ void tick_broadcast(const struct cpumask *mask)
}
#endif
+/*
+ * The number of CPUs online, not counting this CPU (which may not be
+ * fully online and so not counted in num_online_cpus()).
+ */
+static inline unsigned int num_other_online_cpus(void)
+{
+ unsigned int this_cpu_online = cpu_online(smp_processor_id());
+
+ return num_online_cpus() - this_cpu_online;
+}
+
void smp_send_stop(void)
{
unsigned long timeout;
- if (num_online_cpus() > 1) {
+ if (num_other_online_cpus()) {
cpumask_t mask;
cpumask_copy(&mask, cpu_online_mask);
@@ -975,10 +986,10 @@ void smp_send_stop(void)
/* Wait up to one second for other CPUs to stop */
timeout = USEC_PER_SEC;
- while (num_online_cpus() > 1 && timeout--)
+ while (num_other_online_cpus() && timeout--)
udelay(1);
- if (num_online_cpus() > 1)
+ if (num_other_online_cpus())
pr_warn("SMP: failed to stop secondary CPUs %*pbl\n",
cpumask_pr_args(cpu_online_mask));
@@ -1001,7 +1012,11 @@ void crash_smp_send_stop(void)
cpus_stopped = 1;
- if (num_online_cpus() == 1) {
+ /*
+ * If this cpu is the only one alive at this point in time, online or
+ * not, there are no stop messages to be sent around, so just back out.
+ */
+ if (num_other_online_cpus() == 0) {
sdei_mask_local_cpu();
return;
}
@@ -1009,7 +1024,7 @@ void crash_smp_send_stop(void)
cpumask_copy(&mask, cpu_online_mask);
cpumask_clear_cpu(smp_processor_id(), &mask);
- atomic_set(&waiting_for_crash_ipi, num_online_cpus() - 1);
+ atomic_set(&waiting_for_crash_ipi, num_other_online_cpus());
pr_crit("SMP: stopping secondary CPUs\n");
smp_cross_call(&mask, IPI_CPU_CRASH_STOP);
diff --git a/arch/powerpc/kvm/book3s_pr.c b/arch/powerpc/kvm/book3s_pr.c
index 729a0f1..db3a873 100644
--- a/arch/powerpc/kvm/book3s_pr.c
+++ b/arch/powerpc/kvm/book3s_pr.c
@@ -1817,6 +1817,7 @@ static void kvmppc_core_vcpu_free_pr(struct kvm_vcpu *vcpu)
{
struct kvmppc_vcpu_book3s *vcpu_book3s = to_book3s(vcpu);
+ kvmppc_mmu_destroy_pr(vcpu);
free_page((unsigned long)vcpu->arch.shared & PAGE_MASK);
#ifdef CONFIG_KVM_BOOK3S_32_HANDLER
kfree(vcpu->arch.shadow_vcpu);
diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c
index 1af96fb5..302e9dc 100644
--- a/arch/powerpc/kvm/powerpc.c
+++ b/arch/powerpc/kvm/powerpc.c
@@ -759,7 +759,6 @@ int kvm_arch_vcpu_create(struct kvm_vcpu *vcpu)
return 0;
out_vcpu_uninit:
- kvmppc_mmu_destroy(vcpu);
kvmppc_subarch_vcpu_uninit(vcpu);
return err;
}
@@ -792,7 +791,6 @@ void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu)
kvmppc_core_vcpu_free(vcpu);
- kvmppc_mmu_destroy(vcpu);
kvmppc_subarch_vcpu_uninit(vcpu);
}
diff --git a/arch/powerpc/mm/kasan/kasan_init_32.c b/arch/powerpc/mm/kasan/kasan_init_32.c
index db5664d..d2bed3f 100644
--- a/arch/powerpc/mm/kasan/kasan_init_32.c
+++ b/arch/powerpc/mm/kasan/kasan_init_32.c
@@ -120,12 +120,6 @@ static void __init kasan_unmap_early_shadow_vmalloc(void)
unsigned long k_cur;
phys_addr_t pa = __pa(kasan_early_shadow_page);
- if (!early_mmu_has_feature(MMU_FTR_HPTE_TABLE)) {
- int ret = kasan_init_shadow_page_tables(k_start, k_end);
-
- if (ret)
- panic("kasan: kasan_init_shadow_page_tables() failed");
- }
for (k_cur = k_start & PAGE_MASK; k_cur < k_end; k_cur += PAGE_SIZE) {
pmd_t *pmd = pmd_offset(pud_offset(pgd_offset_k(k_cur), k_cur), k_cur);
pte_t *ptep = pte_offset_kernel(pmd, k_cur);
@@ -143,7 +137,8 @@ void __init kasan_mmu_init(void)
int ret;
struct memblock_region *reg;
- if (early_mmu_has_feature(MMU_FTR_HPTE_TABLE)) {
+ if (early_mmu_has_feature(MMU_FTR_HPTE_TABLE) ||
+ IS_ENABLED(CONFIG_KASAN_VMALLOC)) {
ret = kasan_init_shadow_page_tables(KASAN_SHADOW_START, KASAN_SHADOW_END);
if (ret)
diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
index fa4ea09..629fdf1 100644
--- a/arch/x86/mm/fault.c
+++ b/arch/x86/mm/fault.c
@@ -190,7 +190,7 @@ static inline pmd_t *vmalloc_sync_one(pgd_t *pgd, unsigned long address)
return pmd_k;
}
-void vmalloc_sync_all(void)
+static void vmalloc_sync(void)
{
unsigned long address;
@@ -217,6 +217,16 @@ void vmalloc_sync_all(void)
}
}
+void vmalloc_sync_mappings(void)
+{
+ vmalloc_sync();
+}
+
+void vmalloc_sync_unmappings(void)
+{
+ vmalloc_sync();
+}
+
/*
* 32-bit:
*
@@ -319,11 +329,23 @@ static void dump_pagetable(unsigned long address)
#else /* CONFIG_X86_64: */
-void vmalloc_sync_all(void)
+void vmalloc_sync_mappings(void)
{
+ /*
+ * 64-bit mappings might allocate new p4d/pud pages
+ * that need to be propagated to all tasks' PGDs.
+ */
sync_global_pgds(VMALLOC_START & PGDIR_MASK, VMALLOC_END);
}
+void vmalloc_sync_unmappings(void)
+{
+ /*
+ * Unmappings never allocate or free p4d/pud pages.
+ * No work is required here.
+ */
+}
+
/*
* 64-bit:
*
diff --git a/arch/x86/platform/intel/iosf_mbi.c b/arch/x86/platform/intel/iosf_mbi.c
index 9e24445..526f70f 100644
--- a/arch/x86/platform/intel/iosf_mbi.c
+++ b/arch/x86/platform/intel/iosf_mbi.c
@@ -265,7 +265,7 @@ static void iosf_mbi_reset_semaphore(void)
iosf_mbi_sem_address, 0, PUNIT_SEMAPHORE_BIT))
dev_err(&mbi_pdev->dev, "Error P-Unit semaphore reset failed\n");
- pm_qos_update_request(&iosf_mbi_pm_qos, PM_QOS_DEFAULT_VALUE);
+ cpu_latency_qos_update_request(&iosf_mbi_pm_qos, PM_QOS_DEFAULT_VALUE);
blocking_notifier_call_chain(&iosf_mbi_pmic_bus_access_notifier,
MBI_PMIC_BUS_ACCESS_END, NULL);
@@ -301,8 +301,8 @@ static void iosf_mbi_reset_semaphore(void)
* 4) When CPU cores enter C6 or C7 the P-Unit needs to talk to the PMIC
* if this happens while the kernel itself is accessing the PMIC I2C bus
* the SoC hangs.
- * As the third step we call pm_qos_update_request() to disallow the CPU
- * to enter C6 or C7.
+ * As the third step we call cpu_latency_qos_update_request() to disallow the
+ * CPU to enter C6 or C7.
*
* 5) The P-Unit has a PMIC bus semaphore which we can request to stop
* autonomous P-Unit tasks from accessing the PMIC I2C bus while we hold it.
@@ -338,7 +338,7 @@ int iosf_mbi_block_punit_i2c_access(void)
* requires the P-Unit to talk to the PMIC and if this happens while
* we're holding the semaphore, the SoC hangs.
*/
- pm_qos_update_request(&iosf_mbi_pm_qos, 0);
+ cpu_latency_qos_update_request(&iosf_mbi_pm_qos, 0);
/* host driver writes to side band semaphore register */
ret = iosf_mbi_write(BT_MBI_UNIT_PMC, MBI_REG_WRITE,
@@ -547,8 +547,7 @@ static int __init iosf_mbi_init(void)
{
iosf_debugfs_init();
- pm_qos_add_request(&iosf_mbi_pm_qos, PM_QOS_CPU_DMA_LATENCY,
- PM_QOS_DEFAULT_VALUE);
+ cpu_latency_qos_add_request(&iosf_mbi_pm_qos, PM_QOS_DEFAULT_VALUE);
return pci_register_driver(&iosf_mbi_pci_driver);
}
@@ -561,7 +560,7 @@ static void __exit iosf_mbi_exit(void)
pci_dev_put(mbi_pdev);
mbi_pdev = NULL;
- pm_qos_remove_request(&iosf_mbi_pm_qos);
+ cpu_latency_qos_remove_request(&iosf_mbi_pm_qos);
}
module_init(iosf_mbi_init);
diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c
index 103acbb..24c9642 100644
--- a/drivers/acpi/apei/ghes.c
+++ b/drivers/acpi/apei/ghes.c
@@ -171,7 +171,7 @@ int ghes_estatus_pool_init(int num_ghes)
* New allocation must be visible in all pgd before it can be found by
* an NMI allocating from the pool.
*/
- vmalloc_sync_all();
+ vmalloc_sync_mappings();
rc = gen_pool_add(ghes_estatus_pool, addr, PAGE_ALIGN(len), -1);
if (rc)
diff --git a/drivers/android/binderfs.c b/drivers/android/binderfs.c
index 110e41f..f303106 100644
--- a/drivers/android/binderfs.c
+++ b/drivers/android/binderfs.c
@@ -448,6 +448,7 @@ static int binderfs_binder_ctl_create(struct super_block *sb)
inode->i_uid = info->root_uid;
inode->i_gid = info->root_gid;
+ refcount_set(&device->ref, 1);
device->binderfs_inode = inode;
device->miscdev.minor = minor;
diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c
index 959d6d5..0a01df60 100644
--- a/drivers/base/power/domain.c
+++ b/drivers/base/power/domain.c
@@ -2653,7 +2653,7 @@ static int genpd_iterate_idle_states(struct device_node *dn,
ret = of_count_phandle_with_args(dn, "domain-idle-states", NULL);
if (ret <= 0)
- return ret;
+ return ret == -ENOENT ? 0 : ret;
/* Loop over the phandles until all the requested entry is found */
of_for_each_phandle(&it, ret, dn, "domain-idle-states", NULL, 0) {
diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c
index 0e99a76..6d1dee7 100644
--- a/drivers/base/power/main.c
+++ b/drivers/base/power/main.c
@@ -40,6 +40,10 @@
typedef int (*pm_callback_t)(struct device *);
+#define list_for_each_entry_rcu_locked(pos, head, member) \
+ list_for_each_entry_rcu(pos, head, member, \
+ device_links_read_lock_held())
+
/*
* The entries in the dpm_list list are in a depth first order, simply
* because children are guaranteed to be discovered after parents, and
@@ -266,7 +270,7 @@ static void dpm_wait_for_suppliers(struct device *dev, bool async)
* callbacks freeing the link objects for the links in the list we're
* walking.
*/
- list_for_each_entry_rcu(link, &dev->links.suppliers, c_node)
+ list_for_each_entry_rcu_locked(link, &dev->links.suppliers, c_node)
if (READ_ONCE(link->status) != DL_STATE_DORMANT)
dpm_wait(link->supplier, async);
@@ -323,7 +327,7 @@ static void dpm_wait_for_consumers(struct device *dev, bool async)
* continue instead of trying to continue in parallel with its
* unregistration).
*/
- list_for_each_entry_rcu(link, &dev->links.consumers, s_node)
+ list_for_each_entry_rcu_locked(link, &dev->links.consumers, s_node)
if (READ_ONCE(link->status) != DL_STATE_DORMANT)
dpm_wait(link->consumer, async);
@@ -1235,7 +1239,7 @@ static void dpm_superior_set_must_resume(struct device *dev)
idx = device_links_read_lock();
- list_for_each_entry_rcu(link, &dev->links.suppliers, c_node)
+ list_for_each_entry_rcu_locked(link, &dev->links.suppliers, c_node)
link->supplier->power.must_resume = true;
device_links_read_unlock(idx);
@@ -1695,7 +1699,7 @@ static void dpm_clear_superiors_direct_complete(struct device *dev)
idx = device_links_read_lock();
- list_for_each_entry_rcu(link, &dev->links.suppliers, c_node) {
+ list_for_each_entry_rcu_locked(link, &dev->links.suppliers, c_node) {
spin_lock_irq(&link->supplier->power.lock);
link->supplier->power.direct_complete = false;
spin_unlock_irq(&link->supplier->power.lock);
diff --git a/drivers/base/power/runtime.c b/drivers/base/power/runtime.c
index 16134a6..99c7da1 100644
--- a/drivers/base/power/runtime.c
+++ b/drivers/base/power/runtime.c
@@ -1087,29 +1087,47 @@ int __pm_runtime_resume(struct device *dev, int rpmflags)
EXPORT_SYMBOL_GPL(__pm_runtime_resume);
/**
- * pm_runtime_get_if_in_use - Conditionally bump up the device's usage counter.
+ * pm_runtime_get_if_active - Conditionally bump up the device's usage counter.
* @dev: Device to handle.
*
* Return -EINVAL if runtime PM is disabled for the device.
*
- * If that's not the case and if the device's runtime PM status is RPM_ACTIVE
- * and the runtime PM usage counter is nonzero, increment the counter and
- * return 1. Otherwise return 0 without changing the counter.
+ * Otherwise, if the device's runtime PM status is RPM_ACTIVE and either
+ * ign_usage_count is true or the device's usage_count is non-zero, increment
+ * the counter and return 1. Otherwise return 0 without changing the counter.
+ *
+ * If ign_usage_count is true, the function can be used to prevent suspending
+ * the device when its runtime PM status is RPM_ACTIVE.
+ *
+ * If ign_usage_count is false, the function can be used to prevent suspending
+ * the device when both its runtime PM status is RPM_ACTIVE and its usage_count
+ * is non-zero.
+ *
+ * The caller is resposible for putting the device's usage count when ther
+ * return value is greater than zero.
*/
-int pm_runtime_get_if_in_use(struct device *dev)
+int pm_runtime_get_if_active(struct device *dev, bool ign_usage_count)
{
unsigned long flags;
int retval;
spin_lock_irqsave(&dev->power.lock, flags);
- retval = dev->power.disable_depth > 0 ? -EINVAL :
- dev->power.runtime_status == RPM_ACTIVE
- && atomic_inc_not_zero(&dev->power.usage_count);
+ if (dev->power.disable_depth > 0) {
+ retval = -EINVAL;
+ } else if (dev->power.runtime_status != RPM_ACTIVE) {
+ retval = 0;
+ } else if (ign_usage_count) {
+ retval = 1;
+ atomic_inc(&dev->power.usage_count);
+ } else {
+ retval = atomic_inc_not_zero(&dev->power.usage_count);
+ }
trace_rpm_usage_rcuidle(dev, 0);
spin_unlock_irqrestore(&dev->power.lock, flags);
+
return retval;
}
-EXPORT_SYMBOL_GPL(pm_runtime_get_if_in_use);
+EXPORT_SYMBOL_GPL(pm_runtime_get_if_active);
/**
* __pm_runtime_set_status - Set runtime PM status of a device.
diff --git a/drivers/base/power/wakeup.c b/drivers/base/power/wakeup.c
index 27f3e60..92073ac6 100644
--- a/drivers/base/power/wakeup.c
+++ b/drivers/base/power/wakeup.c
@@ -24,6 +24,9 @@ suspend_state_t pm_suspend_target_state;
#define pm_suspend_target_state (PM_SUSPEND_ON)
#endif
+#define list_for_each_entry_rcu_locked(pos, head, member) \
+ list_for_each_entry_rcu(pos, head, member, \
+ srcu_read_lock_held(&wakeup_srcu))
/*
* If set, the suspend/hibernate code will abort transitions to a sleep state
* if wakeup events are registered during or immediately before the transition.
@@ -241,7 +244,9 @@ void wakeup_source_unregister(struct wakeup_source *ws)
{
if (ws) {
wakeup_source_remove(ws);
- wakeup_source_sysfs_remove(ws);
+ if (ws->dev)
+ wakeup_source_sysfs_remove(ws);
+
wakeup_source_destroy(ws);
}
}
@@ -405,7 +410,7 @@ void device_wakeup_arm_wake_irqs(void)
int srcuidx;
srcuidx = srcu_read_lock(&wakeup_srcu);
- list_for_each_entry_rcu(ws, &wakeup_sources, entry)
+ list_for_each_entry_rcu_locked(ws, &wakeup_sources, entry)
dev_pm_arm_wake_irq(ws->wakeirq);
srcu_read_unlock(&wakeup_srcu, srcuidx);
}
@@ -421,7 +426,7 @@ void device_wakeup_disarm_wake_irqs(void)
int srcuidx;
srcuidx = srcu_read_lock(&wakeup_srcu);
- list_for_each_entry_rcu(ws, &wakeup_sources, entry)
+ list_for_each_entry_rcu_locked(ws, &wakeup_sources, entry)
dev_pm_disarm_wake_irq(ws->wakeirq);
srcu_read_unlock(&wakeup_srcu, srcuidx);
}
@@ -874,7 +879,7 @@ void pm_print_active_wakeup_sources(void)
struct wakeup_source *last_activity_ws = NULL;
srcuidx = srcu_read_lock(&wakeup_srcu);
- list_for_each_entry_rcu(ws, &wakeup_sources, entry) {
+ list_for_each_entry_rcu_locked(ws, &wakeup_sources, entry) {
if (ws->active) {
pm_pr_dbg("active wakeup source: %s\n", ws->name);
active = 1;
@@ -1025,7 +1030,7 @@ void pm_wakep_autosleep_enabled(bool set)
int srcuidx;
srcuidx = srcu_read_lock(&wakeup_srcu);
- list_for_each_entry_rcu(ws, &wakeup_sources, entry) {
+ list_for_each_entry_rcu_locked(ws, &wakeup_sources, entry) {
spin_lock_irq(&ws->lock);
if (ws->autosleep_enabled != set) {
ws->autosleep_enabled = set;
@@ -1104,7 +1109,7 @@ static void *wakeup_sources_stats_seq_start(struct seq_file *m,
}
*srcuidx = srcu_read_lock(&wakeup_srcu);
- list_for_each_entry_rcu(ws, &wakeup_sources, entry) {
+ list_for_each_entry_rcu_locked(ws, &wakeup_sources, entry) {
if (n-- <= 0)
return ws;
}
diff --git a/drivers/cpufreq/Kconfig.arm b/drivers/cpufreq/Kconfig.arm
index 3858d86..15c1a12 100644
--- a/drivers/cpufreq/Kconfig.arm
+++ b/drivers/cpufreq/Kconfig.arm
@@ -128,7 +128,7 @@
config ARM_QCOM_CPUFREQ_NVMEM
tristate "Qualcomm nvmem based CPUFreq"
- depends on ARM64
+ depends on ARCH_QCOM
depends on QCOM_QFPROM
depends on QCOM_SMEM
select PM_OPP
diff --git a/drivers/cpufreq/cpufreq-dt-platdev.c b/drivers/cpufreq/cpufreq-dt-platdev.c
index f2ae9cd..cb9db16 100644
--- a/drivers/cpufreq/cpufreq-dt-platdev.c
+++ b/drivers/cpufreq/cpufreq-dt-platdev.c
@@ -141,6 +141,11 @@ static const struct of_device_id blacklist[] __initconst = {
{ .compatible = "ti,dra7", },
{ .compatible = "ti,omap3", },
+ { .compatible = "qcom,ipq8064", },
+ { .compatible = "qcom,apq8064", },
+ { .compatible = "qcom,msm8974", },
+ { .compatible = "qcom,msm8960", },
+
{ }
};
diff --git a/drivers/cpufreq/cpufreq-dt.c b/drivers/cpufreq/cpufreq-dt.c
index d2b5f06..26fe8df 100644
--- a/drivers/cpufreq/cpufreq-dt.c
+++ b/drivers/cpufreq/cpufreq-dt.c
@@ -363,6 +363,10 @@ static int dt_cpufreq_probe(struct platform_device *pdev)
dt_cpufreq_driver.resume = data->resume;
if (data->suspend)
dt_cpufreq_driver.suspend = data->suspend;
+ if (data->get_intermediate) {
+ dt_cpufreq_driver.target_intermediate = data->target_intermediate;
+ dt_cpufreq_driver.get_intermediate = data->get_intermediate;
+ }
}
ret = cpufreq_register_driver(&dt_cpufreq_driver);
diff --git a/drivers/cpufreq/cpufreq-dt.h b/drivers/cpufreq/cpufreq-dt.h
index a5a45b5..28c8af7 100644
--- a/drivers/cpufreq/cpufreq-dt.h
+++ b/drivers/cpufreq/cpufreq-dt.h
@@ -14,6 +14,10 @@ struct cpufreq_policy;
struct cpufreq_dt_platform_data {
bool have_governor_per_policy;
+ unsigned int (*get_intermediate)(struct cpufreq_policy *policy,
+ unsigned int index);
+ int (*target_intermediate)(struct cpufreq_policy *policy,
+ unsigned int index);
int (*suspend)(struct cpufreq_policy *policy);
int (*resume)(struct cpufreq_policy *policy);
};
diff --git a/drivers/cpufreq/cpufreq_stats.c b/drivers/cpufreq/cpufreq_stats.c
index f9bcf0f..94d959a 100644
--- a/drivers/cpufreq/cpufreq_stats.c
+++ b/drivers/cpufreq/cpufreq_stats.c
@@ -90,35 +90,35 @@ static ssize_t show_trans_table(struct cpufreq_policy *policy, char *buf)
if (policy->fast_switch_enabled)
return 0;
- len += snprintf(buf + len, PAGE_SIZE - len, " From : To\n");
- len += snprintf(buf + len, PAGE_SIZE - len, " : ");
+ len += scnprintf(buf + len, PAGE_SIZE - len, " From : To\n");
+ len += scnprintf(buf + len, PAGE_SIZE - len, " : ");
for (i = 0; i < stats->state_num; i++) {
if (len >= PAGE_SIZE)
break;
- len += snprintf(buf + len, PAGE_SIZE - len, "%9u ",
+ len += scnprintf(buf + len, PAGE_SIZE - len, "%9u ",
stats->freq_table[i]);
}
if (len >= PAGE_SIZE)
return PAGE_SIZE;
- len += snprintf(buf + len, PAGE_SIZE - len, "\n");
+ len += scnprintf(buf + len, PAGE_SIZE - len, "\n");
for (i = 0; i < stats->state_num; i++) {
if (len >= PAGE_SIZE)
break;
- len += snprintf(buf + len, PAGE_SIZE - len, "%9u: ",
+ len += scnprintf(buf + len, PAGE_SIZE - len, "%9u: ",
stats->freq_table[i]);
for (j = 0; j < stats->state_num; j++) {
if (len >= PAGE_SIZE)
break;
- len += snprintf(buf + len, PAGE_SIZE - len, "%9u ",
+ len += scnprintf(buf + len, PAGE_SIZE - len, "%9u ",
stats->trans_table[i*stats->max_state+j]);
}
if (len >= PAGE_SIZE)
break;
- len += snprintf(buf + len, PAGE_SIZE - len, "\n");
+ len += scnprintf(buf + len, PAGE_SIZE - len, "\n");
}
if (len >= PAGE_SIZE) {
diff --git a/drivers/cpufreq/imx-cpufreq-dt.c b/drivers/cpufreq/imx-cpufreq-dt.c
index 6cb8193..de206d2 100644
--- a/drivers/cpufreq/imx-cpufreq-dt.c
+++ b/drivers/cpufreq/imx-cpufreq-dt.c
@@ -19,6 +19,8 @@
#define IMX8MN_OCOTP_CFG3_SPEED_GRADE_MASK (0xf << 8)
#define OCOTP_CFG3_MKT_SEGMENT_SHIFT 6
#define OCOTP_CFG3_MKT_SEGMENT_MASK (0x3 << 6)
+#define IMX8MP_OCOTP_CFG3_MKT_SEGMENT_SHIFT 5
+#define IMX8MP_OCOTP_CFG3_MKT_SEGMENT_MASK (0x3 << 5)
/* cpufreq-dt device registered by imx-cpufreq-dt */
static struct platform_device *cpufreq_dt_pdev;
@@ -31,6 +33,9 @@ static int imx_cpufreq_dt_probe(struct platform_device *pdev)
int speed_grade, mkt_segment;
int ret;
+ if (!of_find_property(cpu_dev->of_node, "cpu-supply", NULL))
+ return -ENODEV;
+
ret = nvmem_cell_read_u32(cpu_dev, "speed_grade", &cell_value);
if (ret)
return ret;
@@ -42,7 +47,13 @@ static int imx_cpufreq_dt_probe(struct platform_device *pdev)
else
speed_grade = (cell_value & OCOTP_CFG3_SPEED_GRADE_MASK)
>> OCOTP_CFG3_SPEED_GRADE_SHIFT;
- mkt_segment = (cell_value & OCOTP_CFG3_MKT_SEGMENT_MASK) >> OCOTP_CFG3_MKT_SEGMENT_SHIFT;
+
+ if (of_machine_is_compatible("fsl,imx8mp"))
+ mkt_segment = (cell_value & IMX8MP_OCOTP_CFG3_MKT_SEGMENT_MASK)
+ >> IMX8MP_OCOTP_CFG3_MKT_SEGMENT_SHIFT;
+ else
+ mkt_segment = (cell_value & OCOTP_CFG3_MKT_SEGMENT_MASK)
+ >> OCOTP_CFG3_MKT_SEGMENT_SHIFT;
/*
* Early samples without fuses written report "0 0" which may NOT
diff --git a/drivers/cpufreq/imx6q-cpufreq.c b/drivers/cpufreq/imx6q-cpufreq.c
index 648a09a..fdb2fff 100644
--- a/drivers/cpufreq/imx6q-cpufreq.c
+++ b/drivers/cpufreq/imx6q-cpufreq.c
@@ -216,31 +216,41 @@ static struct cpufreq_driver imx6q_cpufreq_driver = {
#define OCOTP_CFG3_SPEED_996MHZ 0x2
#define OCOTP_CFG3_SPEED_852MHZ 0x1
-static void imx6q_opp_check_speed_grading(struct device *dev)
+static int imx6q_opp_check_speed_grading(struct device *dev)
{
struct device_node *np;
void __iomem *base;
u32 val;
+ int ret;
- np = of_find_compatible_node(NULL, NULL, "fsl,imx6q-ocotp");
- if (!np)
- return;
+ if (of_find_property(dev->of_node, "nvmem-cells", NULL)) {
+ ret = nvmem_cell_read_u32(dev, "speed_grade", &val);
+ if (ret)
+ return ret;
+ } else {
+ np = of_find_compatible_node(NULL, NULL, "fsl,imx6q-ocotp");
+ if (!np)
+ return -ENOENT;
- base = of_iomap(np, 0);
- if (!base) {
- dev_err(dev, "failed to map ocotp\n");
- goto put_node;
+ base = of_iomap(np, 0);
+ of_node_put(np);
+ if (!base) {
+ dev_err(dev, "failed to map ocotp\n");
+ return -EFAULT;
+ }
+
+ /*
+ * SPEED_GRADING[1:0] defines the max speed of ARM:
+ * 2b'11: 1200000000Hz;
+ * 2b'10: 996000000Hz;
+ * 2b'01: 852000000Hz; -- i.MX6Q Only, exclusive with 996MHz.
+ * 2b'00: 792000000Hz;
+ * We need to set the max speed of ARM according to fuse map.
+ */
+ val = readl_relaxed(base + OCOTP_CFG3);
+ iounmap(base);
}
- /*
- * SPEED_GRADING[1:0] defines the max speed of ARM:
- * 2b'11: 1200000000Hz;
- * 2b'10: 996000000Hz;
- * 2b'01: 852000000Hz; -- i.MX6Q Only, exclusive with 996MHz.
- * 2b'00: 792000000Hz;
- * We need to set the max speed of ARM according to fuse map.
- */
- val = readl_relaxed(base + OCOTP_CFG3);
val >>= OCOTP_CFG3_SPEED_SHIFT;
val &= 0x3;
@@ -257,9 +267,8 @@ static void imx6q_opp_check_speed_grading(struct device *dev)
if (dev_pm_opp_disable(dev, 1200000000))
dev_warn(dev, "failed to disable 1.2GHz OPP\n");
}
- iounmap(base);
-put_node:
- of_node_put(np);
+
+ return 0;
}
#define OCOTP_CFG3_6UL_SPEED_696MHZ 0x2
@@ -281,6 +290,9 @@ static int imx6ul_opp_check_speed_grading(struct device *dev)
np = of_find_compatible_node(NULL, NULL, "fsl,imx6ul-ocotp");
if (!np)
+ np = of_find_compatible_node(NULL, NULL,
+ "fsl,imx6ull-ocotp");
+ if (!np)
return -ENOENT;
base = of_iomap(np, 0);
@@ -378,23 +390,22 @@ static int imx6q_cpufreq_probe(struct platform_device *pdev)
goto put_reg;
}
+ /* Because we have added the OPPs here, we must free them */
+ free_opp = true;
+
if (of_machine_is_compatible("fsl,imx6ul") ||
of_machine_is_compatible("fsl,imx6ull")) {
ret = imx6ul_opp_check_speed_grading(cpu_dev);
- if (ret) {
- if (ret == -EPROBE_DEFER)
- goto put_node;
-
+ } else {
+ ret = imx6q_opp_check_speed_grading(cpu_dev);
+ }
+ if (ret) {
+ if (ret != -EPROBE_DEFER)
dev_err(cpu_dev, "failed to read ocotp: %d\n",
ret);
- goto put_node;
- }
- } else {
- imx6q_opp_check_speed_grading(cpu_dev);
+ goto out_free_opp;
}
- /* Because we have added the OPPs here, we must free them */
- free_opp = true;
num = dev_pm_opp_get_opp_count(cpu_dev);
if (num < 0) {
ret = num;
diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c
index c81e1ff..d229783 100644
--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -2155,15 +2155,19 @@ static void intel_pstate_adjust_policy_max(struct cpudata *cpu,
}
}
-static int intel_pstate_verify_policy(struct cpufreq_policy_data *policy)
+static void intel_pstate_verify_cpu_policy(struct cpudata *cpu,
+ struct cpufreq_policy_data *policy)
{
- struct cpudata *cpu = all_cpu_data[policy->cpu];
-
update_turbo_state();
cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq,
intel_pstate_get_max_freq(cpu));
intel_pstate_adjust_policy_max(cpu, policy);
+}
+
+static int intel_pstate_verify_policy(struct cpufreq_policy_data *policy)
+{
+ intel_pstate_verify_cpu_policy(all_cpu_data[policy->cpu], policy);
return 0;
}
@@ -2243,10 +2247,11 @@ static int intel_pstate_cpu_init(struct cpufreq_policy *policy)
if (ret)
return ret;
- if (IS_ENABLED(CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE))
- policy->policy = CPUFREQ_POLICY_PERFORMANCE;
- else
- policy->policy = CPUFREQ_POLICY_POWERSAVE;
+ /*
+ * Set the policy to powersave to provide a valid fallback value in case
+ * the default cpufreq governor is neither powersave nor performance.
+ */
+ policy->policy = CPUFREQ_POLICY_POWERSAVE;
return 0;
}
@@ -2268,12 +2273,7 @@ static int intel_cpufreq_verify_policy(struct cpufreq_policy_data *policy)
{
struct cpudata *cpu = all_cpu_data[policy->cpu];
- update_turbo_state();
- cpufreq_verify_within_limits(policy, policy->cpuinfo.min_freq,
- intel_pstate_get_max_freq(cpu));
-
- intel_pstate_adjust_policy_max(cpu, policy);
-
+ intel_pstate_verify_cpu_policy(cpu, policy);
intel_pstate_update_perf_limits(cpu, policy->min, policy->max);
return 0;
diff --git a/drivers/cpufreq/qcom-cpufreq-nvmem.c b/drivers/cpufreq/qcom-cpufreq-nvmem.c
index f0d2d50..a1b8238 100644
--- a/drivers/cpufreq/qcom-cpufreq-nvmem.c
+++ b/drivers/cpufreq/qcom-cpufreq-nvmem.c
@@ -49,12 +49,14 @@ struct qcom_cpufreq_drv;
struct qcom_cpufreq_match_data {
int (*get_version)(struct device *cpu_dev,
struct nvmem_cell *speedbin_nvmem,
+ char **pvs_name,
struct qcom_cpufreq_drv *drv);
const char **genpd_names;
};
struct qcom_cpufreq_drv {
- struct opp_table **opp_tables;
+ struct opp_table **names_opp_tables;
+ struct opp_table **hw_opp_tables;
struct opp_table **genpd_opp_tables;
u32 versions;
const struct qcom_cpufreq_match_data *data;
@@ -62,6 +64,84 @@ struct qcom_cpufreq_drv {
static struct platform_device *cpufreq_dt_pdev, *cpufreq_pdev;
+static void get_krait_bin_format_a(struct device *cpu_dev,
+ int *speed, int *pvs, int *pvs_ver,
+ struct nvmem_cell *pvs_nvmem, u8 *buf)
+{
+ u32 pte_efuse;
+
+ pte_efuse = *((u32 *)buf);
+
+ *speed = pte_efuse & 0xf;
+ if (*speed == 0xf)
+ *speed = (pte_efuse >> 4) & 0xf;
+
+ if (*speed == 0xf) {
+ *speed = 0;
+ dev_warn(cpu_dev, "Speed bin: Defaulting to %d\n", *speed);
+ } else {
+ dev_dbg(cpu_dev, "Speed bin: %d\n", *speed);
+ }
+
+ *pvs = (pte_efuse >> 10) & 0x7;
+ if (*pvs == 0x7)
+ *pvs = (pte_efuse >> 13) & 0x7;
+
+ if (*pvs == 0x7) {
+ *pvs = 0;
+ dev_warn(cpu_dev, "PVS bin: Defaulting to %d\n", *pvs);
+ } else {
+ dev_dbg(cpu_dev, "PVS bin: %d\n", *pvs);
+ }
+}
+
+static void get_krait_bin_format_b(struct device *cpu_dev,
+ int *speed, int *pvs, int *pvs_ver,
+ struct nvmem_cell *pvs_nvmem, u8 *buf)
+{
+ u32 pte_efuse, redundant_sel;
+
+ pte_efuse = *((u32 *)buf);
+ redundant_sel = (pte_efuse >> 24) & 0x7;
+
+ *pvs_ver = (pte_efuse >> 4) & 0x3;
+
+ switch (redundant_sel) {
+ case 1:
+ *pvs = ((pte_efuse >> 28) & 0x8) | ((pte_efuse >> 6) & 0x7);
+ *speed = (pte_efuse >> 27) & 0xf;
+ break;
+ case 2:
+ *pvs = (pte_efuse >> 27) & 0xf;
+ *speed = pte_efuse & 0x7;
+ break;
+ default:
+ /* 4 bits of PVS are in efuse register bits 31, 8-6. */
+ *pvs = ((pte_efuse >> 28) & 0x8) | ((pte_efuse >> 6) & 0x7);
+ *speed = pte_efuse & 0x7;
+ }
+
+ /* Check SPEED_BIN_BLOW_STATUS */
+ if (pte_efuse & BIT(3)) {
+ dev_dbg(cpu_dev, "Speed bin: %d\n", *speed);
+ } else {
+ dev_warn(cpu_dev, "Speed bin not set. Defaulting to 0!\n");
+ *speed = 0;
+ }
+
+ /* Check PVS_BLOW_STATUS */
+ pte_efuse = *(((u32 *)buf) + 4);
+ pte_efuse &= BIT(21);
+ if (pte_efuse) {
+ dev_dbg(cpu_dev, "PVS bin: %d\n", *pvs);
+ } else {
+ dev_warn(cpu_dev, "PVS bin not set. Defaulting to 0!\n");
+ *pvs = 0;
+ }
+
+ dev_dbg(cpu_dev, "PVS version: %d\n", *pvs_ver);
+}
+
static enum _msm8996_version qcom_cpufreq_get_msm_id(void)
{
size_t len;
@@ -93,11 +173,13 @@ static enum _msm8996_version qcom_cpufreq_get_msm_id(void)
static int qcom_cpufreq_kryo_name_version(struct device *cpu_dev,
struct nvmem_cell *speedbin_nvmem,
+ char **pvs_name,
struct qcom_cpufreq_drv *drv)
{
size_t len;
u8 *speedbin;
enum _msm8996_version msm8996_version;
+ *pvs_name = NULL;
msm8996_version = qcom_cpufreq_get_msm_id();
if (NUM_OF_MSM8996_VERSIONS == msm8996_version) {
@@ -125,10 +207,51 @@ static int qcom_cpufreq_kryo_name_version(struct device *cpu_dev,
return 0;
}
+static int qcom_cpufreq_krait_name_version(struct device *cpu_dev,
+ struct nvmem_cell *speedbin_nvmem,
+ char **pvs_name,
+ struct qcom_cpufreq_drv *drv)
+{
+ int speed = 0, pvs = 0, pvs_ver = 0;
+ u8 *speedbin;
+ size_t len;
+
+ speedbin = nvmem_cell_read(speedbin_nvmem, &len);
+
+ if (IS_ERR(speedbin))
+ return PTR_ERR(speedbin);
+
+ switch (len) {
+ case 4:
+ get_krait_bin_format_a(cpu_dev, &speed, &pvs, &pvs_ver,
+ speedbin_nvmem, speedbin);
+ break;
+ case 8:
+ get_krait_bin_format_b(cpu_dev, &speed, &pvs, &pvs_ver,
+ speedbin_nvmem, speedbin);
+ break;
+ default:
+ dev_err(cpu_dev, "Unable to read nvmem data. Defaulting to 0!\n");
+ return -ENODEV;
+ }
+
+ snprintf(*pvs_name, sizeof("speedXX-pvsXX-vXX"), "speed%d-pvs%d-v%d",
+ speed, pvs, pvs_ver);
+
+ drv->versions = (1 << speed);
+
+ kfree(speedbin);
+ return 0;
+}
+
static const struct qcom_cpufreq_match_data match_data_kryo = {
.get_version = qcom_cpufreq_kryo_name_version,
};
+static const struct qcom_cpufreq_match_data match_data_krait = {
+ .get_version = qcom_cpufreq_krait_name_version,
+};
+
static const char *qcs404_genpd_names[] = { "cpr", NULL };
static const struct qcom_cpufreq_match_data match_data_qcs404 = {
@@ -141,6 +264,7 @@ static int qcom_cpufreq_probe(struct platform_device *pdev)
struct nvmem_cell *speedbin_nvmem;
struct device_node *np;
struct device *cpu_dev;
+ char *pvs_name = "speedXX-pvsXX-vXX";
unsigned cpu;
const struct of_device_id *match;
int ret;
@@ -153,7 +277,7 @@ static int qcom_cpufreq_probe(struct platform_device *pdev)
if (!np)
return -ENOENT;
- ret = of_device_is_compatible(np, "operating-points-v2-kryo-cpu");
+ ret = of_device_is_compatible(np, "operating-points-v2-qcom-cpu");
if (!ret) {
of_node_put(np);
return -ENOENT;
@@ -181,7 +305,8 @@ static int qcom_cpufreq_probe(struct platform_device *pdev)
goto free_drv;
}
- ret = drv->data->get_version(cpu_dev, speedbin_nvmem, drv);
+ ret = drv->data->get_version(cpu_dev,
+ speedbin_nvmem, &pvs_name, drv);
if (ret) {
nvmem_cell_put(speedbin_nvmem);
goto free_drv;
@@ -190,12 +315,20 @@ static int qcom_cpufreq_probe(struct platform_device *pdev)
}
of_node_put(np);
- drv->opp_tables = kcalloc(num_possible_cpus(), sizeof(*drv->opp_tables),
+ drv->names_opp_tables = kcalloc(num_possible_cpus(),
+ sizeof(*drv->names_opp_tables),
GFP_KERNEL);
- if (!drv->opp_tables) {
+ if (!drv->names_opp_tables) {
ret = -ENOMEM;
goto free_drv;
}
+ drv->hw_opp_tables = kcalloc(num_possible_cpus(),
+ sizeof(*drv->hw_opp_tables),
+ GFP_KERNEL);
+ if (!drv->hw_opp_tables) {
+ ret = -ENOMEM;
+ goto free_opp_names;
+ }
drv->genpd_opp_tables = kcalloc(num_possible_cpus(),
sizeof(*drv->genpd_opp_tables),
@@ -213,11 +346,23 @@ static int qcom_cpufreq_probe(struct platform_device *pdev)
}
if (drv->data->get_version) {
- drv->opp_tables[cpu] =
- dev_pm_opp_set_supported_hw(cpu_dev,
- &drv->versions, 1);
- if (IS_ERR(drv->opp_tables[cpu])) {
- ret = PTR_ERR(drv->opp_tables[cpu]);
+
+ if (pvs_name) {
+ drv->names_opp_tables[cpu] = dev_pm_opp_set_prop_name(
+ cpu_dev,
+ pvs_name);
+ if (IS_ERR(drv->names_opp_tables[cpu])) {
+ ret = PTR_ERR(drv->names_opp_tables[cpu]);
+ dev_err(cpu_dev, "Failed to add OPP name %s\n",
+ pvs_name);
+ goto free_opp;
+ }
+ }
+
+ drv->hw_opp_tables[cpu] = dev_pm_opp_set_supported_hw(
+ cpu_dev, &drv->versions, 1);
+ if (IS_ERR(drv->hw_opp_tables[cpu])) {
+ ret = PTR_ERR(drv->hw_opp_tables[cpu]);
dev_err(cpu_dev,
"Failed to set supported hardware\n");
goto free_genpd_opp;
@@ -259,11 +404,18 @@ static int qcom_cpufreq_probe(struct platform_device *pdev)
kfree(drv->genpd_opp_tables);
free_opp:
for_each_possible_cpu(cpu) {
- if (IS_ERR_OR_NULL(drv->opp_tables[cpu]))
+ if (IS_ERR_OR_NULL(drv->names_opp_tables[cpu]))
break;
- dev_pm_opp_put_supported_hw(drv->opp_tables[cpu]);
+ dev_pm_opp_put_prop_name(drv->names_opp_tables[cpu]);
}
- kfree(drv->opp_tables);
+ for_each_possible_cpu(cpu) {
+ if (IS_ERR_OR_NULL(drv->hw_opp_tables[cpu]))
+ break;
+ dev_pm_opp_put_supported_hw(drv->hw_opp_tables[cpu]);
+ }
+ kfree(drv->hw_opp_tables);
+free_opp_names:
+ kfree(drv->names_opp_tables);
free_drv:
kfree(drv);
@@ -278,13 +430,16 @@ static int qcom_cpufreq_remove(struct platform_device *pdev)
platform_device_unregister(cpufreq_dt_pdev);
for_each_possible_cpu(cpu) {
- if (drv->opp_tables[cpu])
- dev_pm_opp_put_supported_hw(drv->opp_tables[cpu]);
+ if (drv->names_opp_tables[cpu])
+ dev_pm_opp_put_supported_hw(drv->names_opp_tables[cpu]);
+ if (drv->hw_opp_tables[cpu])
+ dev_pm_opp_put_supported_hw(drv->hw_opp_tables[cpu]);
if (drv->genpd_opp_tables[cpu])
dev_pm_opp_detach_genpd(drv->genpd_opp_tables[cpu]);
}
- kfree(drv->opp_tables);
+ kfree(drv->names_opp_tables);
+ kfree(drv->hw_opp_tables);
kfree(drv->genpd_opp_tables);
kfree(drv);
@@ -303,6 +458,10 @@ static const struct of_device_id qcom_cpufreq_match_list[] __initconst = {
{ .compatible = "qcom,apq8096", .data = &match_data_kryo },
{ .compatible = "qcom,msm8996", .data = &match_data_kryo },
{ .compatible = "qcom,qcs404", .data = &match_data_qcs404 },
+ { .compatible = "qcom,ipq8064", .data = &match_data_krait },
+ { .compatible = "qcom,apq8064", .data = &match_data_krait },
+ { .compatible = "qcom,msm8974", .data = &match_data_krait },
+ { .compatible = "qcom,msm8960", .data = &match_data_krait },
{},
};
diff --git a/drivers/cpufreq/ti-cpufreq.c b/drivers/cpufreq/ti-cpufreq.c
index 557cb51..ab0de27 100644
--- a/drivers/cpufreq/ti-cpufreq.c
+++ b/drivers/cpufreq/ti-cpufreq.c
@@ -25,11 +25,14 @@
#define DRA7_EFUSE_HAS_OD_MPU_OPP 11
#define DRA7_EFUSE_HAS_HIGH_MPU_OPP 15
+#define DRA76_EFUSE_HAS_PLUS_MPU_OPP 18
#define DRA7_EFUSE_HAS_ALL_MPU_OPP 23
+#define DRA76_EFUSE_HAS_ALL_MPU_OPP 24
#define DRA7_EFUSE_NOM_MPU_OPP BIT(0)
#define DRA7_EFUSE_OD_MPU_OPP BIT(1)
#define DRA7_EFUSE_HIGH_MPU_OPP BIT(2)
+#define DRA76_EFUSE_PLUS_MPU_OPP BIT(3)
#define OMAP3_CONTROL_DEVICE_STATUS 0x4800244C
#define OMAP3_CONTROL_IDCODE 0x4830A204
@@ -80,6 +83,10 @@ static unsigned long dra7_efuse_xlate(struct ti_cpufreq_data *opp_data,
*/
switch (efuse) {
+ case DRA76_EFUSE_HAS_PLUS_MPU_OPP:
+ case DRA76_EFUSE_HAS_ALL_MPU_OPP:
+ calculated_efuse |= DRA76_EFUSE_PLUS_MPU_OPP;
+ /* Fall through */
case DRA7_EFUSE_HAS_ALL_MPU_OPP:
case DRA7_EFUSE_HAS_HIGH_MPU_OPP:
calculated_efuse |= DRA7_EFUSE_HIGH_MPU_OPP;
diff --git a/drivers/cpuidle/cpuidle-haltpoll.c b/drivers/cpuidle/cpuidle-haltpoll.c
index b0ce9bc..db124bc 100644
--- a/drivers/cpuidle/cpuidle-haltpoll.c
+++ b/drivers/cpuidle/cpuidle-haltpoll.c
@@ -18,6 +18,10 @@
#include <linux/kvm_para.h>
#include <linux/cpuidle_haltpoll.h>
+static bool force __read_mostly;
+module_param(force, bool, 0444);
+MODULE_PARM_DESC(force, "Load unconditionally");
+
static struct cpuidle_device __percpu *haltpoll_cpuidle_devices;
static enum cpuhp_state haltpoll_hp_state;
@@ -90,6 +94,11 @@ static void haltpoll_uninit(void)
haltpoll_cpuidle_devices = NULL;
}
+static bool haltpool_want(void)
+{
+ return kvm_para_has_hint(KVM_HINTS_REALTIME) || force;
+}
+
static int __init haltpoll_init(void)
{
int ret;
@@ -101,8 +110,7 @@ static int __init haltpoll_init(void)
cpuidle_poll_state_init(drv);
- if (!kvm_para_available() ||
- !kvm_para_has_hint(KVM_HINTS_REALTIME))
+ if (!kvm_para_available() || !haltpool_want())
return -ENODEV;
ret = cpuidle_register_driver(drv);
diff --git a/drivers/cpuidle/cpuidle-psci.c b/drivers/cpuidle/cpuidle-psci.c
index edd7a54..bae9140 100644
--- a/drivers/cpuidle/cpuidle-psci.c
+++ b/drivers/cpuidle/cpuidle-psci.c
@@ -160,6 +160,29 @@ int __init psci_dt_parse_state_node(struct device_node *np, u32 *state)
return 0;
}
+static int __init psci_dt_cpu_init_topology(struct cpuidle_driver *drv,
+ struct psci_cpuidle_data *data,
+ unsigned int state_count, int cpu)
+{
+ /* Currently limit the hierarchical topology to be used in OSI mode. */
+ if (!psci_has_osi_support())
+ return 0;
+
+ data->dev = psci_dt_attach_cpu(cpu);
+ if (IS_ERR_OR_NULL(data->dev))
+ return PTR_ERR_OR_ZERO(data->dev);
+
+ /*
+ * Using the deepest state for the CPU to trigger a potential selection
+ * of a shared state for the domain, assumes the domain states are all
+ * deeper states.
+ */
+ drv->states[state_count - 1].enter = psci_enter_domain_idle_state;
+ psci_cpuidle_use_cpuhp = true;
+
+ return 0;
+}
+
static int __init psci_dt_cpu_init_idle(struct cpuidle_driver *drv,
struct device_node *cpu_node,
unsigned int state_count, int cpu)
@@ -193,25 +216,10 @@ static int __init psci_dt_cpu_init_idle(struct cpuidle_driver *drv,
goto free_mem;
}
- /* Currently limit the hierarchical topology to be used in OSI mode. */
- if (psci_has_osi_support()) {
- data->dev = psci_dt_attach_cpu(cpu);
- if (IS_ERR(data->dev)) {
- ret = PTR_ERR(data->dev);
- goto free_mem;
- }
-
- /*
- * Using the deepest state for the CPU to trigger a potential
- * selection of a shared state for the domain, assumes the
- * domain states are all deeper states.
- */
- if (data->dev) {
- drv->states[state_count - 1].enter =
- psci_enter_domain_idle_state;
- psci_cpuidle_use_cpuhp = true;
- }
- }
+ /* Initialize optional data, used for the hierarchical topology. */
+ ret = psci_dt_cpu_init_topology(drv, data, state_count, cpu);
+ if (ret < 0)
+ goto free_mem;
/* Idle states parsed correctly, store them in the per-cpu struct. */
data->psci_states = psci_states;
diff --git a/drivers/cpuidle/cpuidle.c b/drivers/cpuidle/cpuidle.c
index de81298..c149d9e 100644
--- a/drivers/cpuidle/cpuidle.c
+++ b/drivers/cpuidle/cpuidle.c
@@ -736,53 +736,15 @@ int cpuidle_register(struct cpuidle_driver *drv,
}
EXPORT_SYMBOL_GPL(cpuidle_register);
-#ifdef CONFIG_SMP
-
-/*
- * This function gets called when a part of the kernel has a new latency
- * requirement. This means we need to get all processors out of their C-state,
- * and then recalculate a new suitable C-state. Just do a cross-cpu IPI; that
- * wakes them all right up.
- */
-static int cpuidle_latency_notify(struct notifier_block *b,
- unsigned long l, void *v)
-{
- wake_up_all_idle_cpus();
- return NOTIFY_OK;
-}
-
-static struct notifier_block cpuidle_latency_notifier = {
- .notifier_call = cpuidle_latency_notify,
-};
-
-static inline void latency_notifier_init(struct notifier_block *n)
-{
- pm_qos_add_notifier(PM_QOS_CPU_DMA_LATENCY, n);
-}
-
-#else /* CONFIG_SMP */
-
-#define latency_notifier_init(x) do { } while (0)
-
-#endif /* CONFIG_SMP */
-
/**
* cpuidle_init - core initializer
*/
static int __init cpuidle_init(void)
{
- int ret;
-
if (cpuidle_disabled())
return -ENODEV;
- ret = cpuidle_add_interface(cpu_subsys.dev_root);
- if (ret)
- return ret;
-
- latency_notifier_init(&cpuidle_latency_notifier);
-
- return 0;
+ return cpuidle_add_interface(cpu_subsys.dev_root);
}
module_param(off, int, 0444);
diff --git a/drivers/cpuidle/governor.c b/drivers/cpuidle/governor.c
index e48271e..29acaf4 100644
--- a/drivers/cpuidle/governor.c
+++ b/drivers/cpuidle/governor.c
@@ -109,9 +109,9 @@ int cpuidle_register_governor(struct cpuidle_governor *gov)
*/
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);
+ int global_req = cpu_latency_qos_limit();
if (device_req > global_req)
device_req = global_req;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
index f24ed9a..337d7cd 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
@@ -781,11 +781,11 @@ static ssize_t amdgpu_debugfs_gpr_read(struct file *f, char __user *buf,
ssize_t result = 0;
uint32_t offset, se, sh, cu, wave, simd, thread, bank, *data;
- if (size & 3 || *pos & 3)
+ if (size > 4096 || size & 3 || *pos & 3)
return -EINVAL;
/* decode offset */
- offset = *pos & GENMASK_ULL(11, 0);
+ offset = (*pos & GENMASK_ULL(11, 0)) >> 2;
se = (*pos & GENMASK_ULL(19, 12)) >> 12;
sh = (*pos & GENMASK_ULL(27, 20)) >> 20;
cu = (*pos & GENMASK_ULL(35, 28)) >> 28;
@@ -823,7 +823,7 @@ static ssize_t amdgpu_debugfs_gpr_read(struct file *f, char __user *buf,
while (size) {
uint32_t value;
- value = data[offset++];
+ value = data[result >> 2];
r = put_user(value, (uint32_t *)buf);
if (r) {
result = r;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 39cd545..b897585 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -3913,6 +3913,8 @@ static int amdgpu_do_asic_reset(struct amdgpu_hive_info *hive,
if (r)
goto out;
+ amdgpu_fbdev_set_suspend(tmp_adev, 0);
+
/* must succeed. */
amdgpu_ras_resume(tmp_adev);
@@ -4086,6 +4088,8 @@ int amdgpu_device_gpu_recover(struct amdgpu_device *adev,
*/
amdgpu_unregister_gpu_instance(tmp_adev);
+ amdgpu_fbdev_set_suspend(adev, 1);
+
/* disable ras on ALL IPs */
if (!(in_ras_intr && !use_baco) &&
amdgpu_device_ip_need_full_reset(tmp_adev))
diff --git a/drivers/gpu/drm/amd/amdgpu/jpeg_v2_0.c b/drivers/gpu/drm/amd/amdgpu/jpeg_v2_0.c
index ff2e6e1..6173951 100644
--- a/drivers/gpu/drm/amd/amdgpu/jpeg_v2_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/jpeg_v2_0.c
@@ -693,7 +693,7 @@ static int jpeg_v2_0_set_clockgating_state(void *handle,
bool enable = (state == AMD_CG_STATE_GATE);
if (enable) {
- if (jpeg_v2_0_is_idle(handle))
+ if (!jpeg_v2_0_is_idle(handle))
return -EBUSY;
jpeg_v2_0_enable_clock_gating(adev);
} else {
diff --git a/drivers/gpu/drm/amd/amdgpu/jpeg_v2_5.c b/drivers/gpu/drm/amd/amdgpu/jpeg_v2_5.c
index c6d046d..c04c207 100644
--- a/drivers/gpu/drm/amd/amdgpu/jpeg_v2_5.c
+++ b/drivers/gpu/drm/amd/amdgpu/jpeg_v2_5.c
@@ -477,7 +477,7 @@ static int jpeg_v2_5_set_clockgating_state(void *handle,
continue;
if (enable) {
- if (jpeg_v2_5_is_idle(handle))
+ if (!jpeg_v2_5_is_idle(handle))
return -EBUSY;
jpeg_v2_5_enable_clock_gating(adev, i);
} else {
diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c b/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c
index 71f61af..09b0572 100644
--- a/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c
@@ -1352,7 +1352,7 @@ static int vcn_v1_0_set_clockgating_state(void *handle,
if (enable) {
/* wait for STATUS to clear */
- if (vcn_v1_0_is_idle(handle))
+ if (!vcn_v1_0_is_idle(handle))
return -EBUSY;
vcn_v1_0_enable_clock_gating(adev);
} else {
diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v2_0.c b/drivers/gpu/drm/amd/amdgpu/vcn_v2_0.c
index c387c81..b7f1734 100644
--- a/drivers/gpu/drm/amd/amdgpu/vcn_v2_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/vcn_v2_0.c
@@ -1217,7 +1217,7 @@ static int vcn_v2_0_set_clockgating_state(void *handle,
if (enable) {
/* wait for STATUS to clear */
- if (vcn_v2_0_is_idle(handle))
+ if (!vcn_v2_0_is_idle(handle))
return -EBUSY;
vcn_v2_0_enable_clock_gating(adev);
} else {
diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v2_5.c b/drivers/gpu/drm/amd/amdgpu/vcn_v2_5.c
index 2d64ba1..678253d 100644
--- a/drivers/gpu/drm/amd/amdgpu/vcn_v2_5.c
+++ b/drivers/gpu/drm/amd/amdgpu/vcn_v2_5.c
@@ -1672,7 +1672,7 @@ static int vcn_v2_5_set_clockgating_state(void *handle,
return 0;
if (enable) {
- if (vcn_v2_5_is_idle(handle))
+ if (!vcn_v2_5_is_idle(handle))
return -EBUSY;
vcn_v2_5_enable_clock_gating(adev);
} else {
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index e997251..6240259 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -522,8 +522,9 @@ static void dm_dcn_crtc_high_irq(void *interrupt_params)
acrtc_state = to_dm_crtc_state(acrtc->base.state);
- DRM_DEBUG_DRIVER("crtc:%d, vupdate-vrr:%d\n", acrtc->crtc_id,
- amdgpu_dm_vrr_active(acrtc_state));
+ DRM_DEBUG_DRIVER("crtc:%d, vupdate-vrr:%d, planes:%d\n", acrtc->crtc_id,
+ amdgpu_dm_vrr_active(acrtc_state),
+ acrtc_state->active_planes);
amdgpu_dm_crtc_handle_crc_irq(&acrtc->base);
drm_crtc_handle_vblank(&acrtc->base);
@@ -543,7 +544,18 @@ static void dm_dcn_crtc_high_irq(void *interrupt_params)
&acrtc_state->vrr_params.adjust);
}
- if (acrtc->pflip_status == AMDGPU_FLIP_SUBMITTED) {
+ /*
+ * If there aren't any active_planes then DCH HUBP may be clock-gated.
+ * In that case, pageflip completion interrupts won't fire and pageflip
+ * completion events won't get delivered. Prevent this by sending
+ * pending pageflip events from here if a flip is still pending.
+ *
+ * If any planes are enabled, use dm_pflip_high_irq() instead, to
+ * avoid race conditions between flip programming and completion,
+ * which could cause too early flip completion events.
+ */
+ if (acrtc->pflip_status == AMDGPU_FLIP_SUBMITTED &&
+ acrtc_state->active_planes == 0) {
if (acrtc->event) {
drm_crtc_send_vblank_event(&acrtc->base, acrtc->event);
acrtc->event = NULL;
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
index cb731c1..fd9e696 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
@@ -3401,6 +3401,17 @@ static bool retrieve_link_cap(struct dc_link *link)
sink_id.ieee_device_id,
sizeof(sink_id.ieee_device_id));
+ /* Quirk Apple MBP 2017 15" Retina panel: Wrong DP_MAX_LINK_RATE */
+ {
+ uint8_t str_mbp_2017[] = { 101, 68, 21, 101, 98, 97 };
+
+ if ((link->dpcd_caps.sink_dev_id == 0x0010fa) &&
+ !memcmp(link->dpcd_caps.sink_dev_id_str, str_mbp_2017,
+ sizeof(str_mbp_2017))) {
+ link->reported_link_cap.link_rate = 0x0c;
+ }
+ }
+
core_link_read_dpcd(
link,
DP_SINK_HW_REVISION_START,
diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_init.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_init.c
index d51e02f..5e640f1 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_init.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_init.c
@@ -108,7 +108,6 @@ static const struct hwseq_private_funcs dcn20_private_funcs = {
.enable_power_gating_plane = dcn20_enable_power_gating_plane,
.dpp_pg_control = dcn20_dpp_pg_control,
.hubp_pg_control = dcn20_hubp_pg_control,
- .dsc_pg_control = NULL,
.update_odm = dcn20_update_odm,
.dsc_pg_control = dcn20_dsc_pg_control,
.get_surface_visual_confirm_color = dcn10_get_surface_visual_confirm_color,
diff --git a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_init.c b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_init.c
index 4861aa5..fddbd59 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_init.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn21/dcn21_init.c
@@ -116,7 +116,6 @@ static const struct hwseq_private_funcs dcn21_private_funcs = {
.enable_power_gating_plane = dcn20_enable_power_gating_plane,
.dpp_pg_control = dcn20_dpp_pg_control,
.hubp_pg_control = dcn20_hubp_pg_control,
- .dsc_pg_control = NULL,
.update_odm = dcn20_update_odm,
.dsc_pg_control = dcn20_dsc_pg_control,
.get_surface_visual_confirm_color = dcn10_get_surface_visual_confirm_color,
diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_drv.c b/drivers/gpu/drm/arm/display/komeda/komeda_drv.c
index ea5cd1e..e793393 100644
--- a/drivers/gpu/drm/arm/display/komeda/komeda_drv.c
+++ b/drivers/gpu/drm/arm/display/komeda/komeda_drv.c
@@ -146,14 +146,14 @@ static const struct of_device_id komeda_of_match[] = {
MODULE_DEVICE_TABLE(of, komeda_of_match);
-static int komeda_rt_pm_suspend(struct device *dev)
+static int __maybe_unused komeda_rt_pm_suspend(struct device *dev)
{
struct komeda_drv *mdrv = dev_get_drvdata(dev);
return komeda_dev_suspend(mdrv->mdev);
}
-static int komeda_rt_pm_resume(struct device *dev)
+static int __maybe_unused komeda_rt_pm_resume(struct device *dev)
{
struct komeda_drv *mdrv = dev_get_drvdata(dev);
diff --git a/drivers/gpu/drm/bochs/bochs_hw.c b/drivers/gpu/drm/bochs/bochs_hw.c
index b615b7d..a4fc4e6 100644
--- a/drivers/gpu/drm/bochs/bochs_hw.c
+++ b/drivers/gpu/drm/bochs/bochs_hw.c
@@ -156,10 +156,8 @@ int bochs_hw_init(struct drm_device *dev)
size = min(size, mem);
}
- if (pci_request_region(pdev, 0, "bochs-drm") != 0) {
- DRM_ERROR("Cannot request framebuffer\n");
- return -EBUSY;
- }
+ if (pci_request_region(pdev, 0, "bochs-drm") != 0)
+ DRM_WARN("Cannot request framebuffer, boot fb still active?\n");
bochs->fb_map = ioremap(addr, size);
if (bochs->fb_map == NULL) {
diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
index 67fca43..24965e5 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
@@ -1624,28 +1624,34 @@ static void hdmi_config_AVI(struct dw_hdmi *hdmi, struct drm_display_mode *mode)
frame.colorspace = HDMI_COLORSPACE_RGB;
/* Set up colorimetry */
- switch (hdmi->hdmi_data.enc_out_encoding) {
- case V4L2_YCBCR_ENC_601:
- if (hdmi->hdmi_data.enc_in_encoding == V4L2_YCBCR_ENC_XV601)
- frame.colorimetry = HDMI_COLORIMETRY_EXTENDED;
- else
+ if (!hdmi_bus_fmt_is_rgb(hdmi->hdmi_data.enc_out_bus_format)) {
+ switch (hdmi->hdmi_data.enc_out_encoding) {
+ case V4L2_YCBCR_ENC_601:
+ if (hdmi->hdmi_data.enc_in_encoding == V4L2_YCBCR_ENC_XV601)
+ frame.colorimetry = HDMI_COLORIMETRY_EXTENDED;
+ else
+ frame.colorimetry = HDMI_COLORIMETRY_ITU_601;
+ frame.extended_colorimetry =
+ HDMI_EXTENDED_COLORIMETRY_XV_YCC_601;
+ break;
+ case V4L2_YCBCR_ENC_709:
+ if (hdmi->hdmi_data.enc_in_encoding == V4L2_YCBCR_ENC_XV709)
+ frame.colorimetry = HDMI_COLORIMETRY_EXTENDED;
+ else
+ frame.colorimetry = HDMI_COLORIMETRY_ITU_709;
+ frame.extended_colorimetry =
+ HDMI_EXTENDED_COLORIMETRY_XV_YCC_709;
+ break;
+ default: /* Carries no data */
frame.colorimetry = HDMI_COLORIMETRY_ITU_601;
+ frame.extended_colorimetry =
+ HDMI_EXTENDED_COLORIMETRY_XV_YCC_601;
+ break;
+ }
+ } else {
+ frame.colorimetry = HDMI_COLORIMETRY_NONE;
frame.extended_colorimetry =
- HDMI_EXTENDED_COLORIMETRY_XV_YCC_601;
- break;
- case V4L2_YCBCR_ENC_709:
- if (hdmi->hdmi_data.enc_in_encoding == V4L2_YCBCR_ENC_XV709)
- frame.colorimetry = HDMI_COLORIMETRY_EXTENDED;
- else
- frame.colorimetry = HDMI_COLORIMETRY_ITU_709;
- frame.extended_colorimetry =
- HDMI_EXTENDED_COLORIMETRY_XV_YCC_709;
- break;
- default: /* Carries no data */
- frame.colorimetry = HDMI_COLORIMETRY_ITU_601;
- frame.extended_colorimetry =
- HDMI_EXTENDED_COLORIMETRY_XV_YCC_601;
- break;
+ HDMI_EXTENDED_COLORIMETRY_XV_YCC_601;
}
frame.scan_mode = HDMI_SCAN_MODE_NONE;
diff --git a/drivers/gpu/drm/drm_lease.c b/drivers/gpu/drm/drm_lease.c
index b481caf..825abe3 100644
--- a/drivers/gpu/drm/drm_lease.c
+++ b/drivers/gpu/drm/drm_lease.c
@@ -542,10 +542,12 @@ int drm_mode_create_lease_ioctl(struct drm_device *dev,
}
DRM_DEBUG_LEASE("Creating lease\n");
+ /* lessee will take the ownership of leases */
lessee = drm_lease_create(lessor, &leases);
if (IS_ERR(lessee)) {
ret = PTR_ERR(lessee);
+ idr_destroy(&leases);
goto out_leases;
}
@@ -580,7 +582,6 @@ int drm_mode_create_lease_ioctl(struct drm_device *dev,
out_leases:
put_unused_fd(fd);
- idr_destroy(&leases);
DRM_DEBUG_LEASE("drm_mode_create_lease_ioctl failed: %d\n", ret);
return ret;
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index c7424e2..2084570 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -1360,7 +1360,7 @@ intel_dp_aux_xfer(struct intel_dp *intel_dp,
* lowest possible wakeup latency and so prevent the cpu from going into
* deep sleep states.
*/
- pm_qos_update_request(&i915->pm_qos, 0);
+ cpu_latency_qos_update_request(&i915->pm_qos, 0);
intel_dp_check_edp(intel_dp);
@@ -1488,7 +1488,7 @@ intel_dp_aux_xfer(struct intel_dp *intel_dp,
ret = recv_bytes;
out:
- pm_qos_update_request(&i915->pm_qos, PM_QOS_DEFAULT_VALUE);
+ cpu_latency_qos_update_request(&i915->pm_qos, PM_QOS_DEFAULT_VALUE);
if (vdd)
edp_panel_vdd_off(intel_dp, false);
diff --git a/drivers/gpu/drm/i915/gt/intel_lrc.c b/drivers/gpu/drm/i915/gt/intel_lrc.c
index 940e7f7..31455ec 100644
--- a/drivers/gpu/drm/i915/gt/intel_lrc.c
+++ b/drivers/gpu/drm/i915/gt/intel_lrc.c
@@ -1600,17 +1600,6 @@ static void virtual_xfer_breadcrumbs(struct virtual_engine *ve,
spin_unlock(&old->breadcrumbs.irq_lock);
}
-static struct i915_request *
-last_active(const struct intel_engine_execlists *execlists)
-{
- struct i915_request * const *last = READ_ONCE(execlists->active);
-
- while (*last && i915_request_completed(*last))
- last++;
-
- return *last;
-}
-
#define for_each_waiter(p__, rq__) \
list_for_each_entry_lockless(p__, \
&(rq__)->sched.waiters_list, \
@@ -1740,11 +1729,9 @@ static void record_preemption(struct intel_engine_execlists *execlists)
(void)I915_SELFTEST_ONLY(execlists->preempt_hang.count++);
}
-static unsigned long active_preempt_timeout(struct intel_engine_cs *engine)
+static unsigned long active_preempt_timeout(struct intel_engine_cs *engine,
+ const struct i915_request *rq)
{
- struct i915_request *rq;
-
- rq = last_active(&engine->execlists);
if (!rq)
return 0;
@@ -1755,13 +1742,14 @@ static unsigned long active_preempt_timeout(struct intel_engine_cs *engine)
return READ_ONCE(engine->props.preempt_timeout_ms);
}
-static void set_preempt_timeout(struct intel_engine_cs *engine)
+static void set_preempt_timeout(struct intel_engine_cs *engine,
+ const struct i915_request *rq)
{
if (!intel_engine_has_preempt_reset(engine))
return;
set_timer_ms(&engine->execlists.preempt,
- active_preempt_timeout(engine));
+ active_preempt_timeout(engine, rq));
}
static inline void clear_ports(struct i915_request **ports, int count)
@@ -1774,6 +1762,7 @@ static void execlists_dequeue(struct intel_engine_cs *engine)
struct intel_engine_execlists * const execlists = &engine->execlists;
struct i915_request **port = execlists->pending;
struct i915_request ** const last_port = port + execlists->port_mask;
+ struct i915_request * const *active;
struct i915_request *last;
struct rb_node *rb;
bool submit = false;
@@ -1828,7 +1817,10 @@ static void execlists_dequeue(struct intel_engine_cs *engine)
* i.e. we will retrigger preemption following the ack in case
* of trouble.
*/
- last = last_active(execlists);
+ active = READ_ONCE(execlists->active);
+ while ((last = *active) && i915_request_completed(last))
+ active++;
+
if (last) {
if (need_preempt(engine, last, rb)) {
ENGINE_TRACE(engine,
@@ -2110,7 +2102,7 @@ static void execlists_dequeue(struct intel_engine_cs *engine)
* Skip if we ended up with exactly the same set of requests,
* e.g. trying to timeslice a pair of ordered contexts
*/
- if (!memcmp(execlists->active, execlists->pending,
+ if (!memcmp(active, execlists->pending,
(port - execlists->pending + 1) * sizeof(*port))) {
do
execlists_schedule_out(fetch_and_zero(port));
@@ -2121,7 +2113,7 @@ static void execlists_dequeue(struct intel_engine_cs *engine)
clear_ports(port + 1, last_port - port);
execlists_submit_ports(engine);
- set_preempt_timeout(engine);
+ set_preempt_timeout(engine, *active);
} else {
skip_submit:
ring_set_paused(engine, 0);
@@ -4008,26 +4000,6 @@ static int gen12_emit_flush_render(struct i915_request *request,
*cs++ = preparser_disable(false);
intel_ring_advance(request, cs);
-
- /*
- * Wa_1604544889:tgl
- */
- if (IS_TGL_REVID(request->i915, TGL_REVID_A0, TGL_REVID_A0)) {
- flags = 0;
- flags |= PIPE_CONTROL_CS_STALL;
- flags |= PIPE_CONTROL_HDC_PIPELINE_FLUSH;
-
- flags |= PIPE_CONTROL_STORE_DATA_INDEX;
- flags |= PIPE_CONTROL_QW_WRITE;
-
- cs = intel_ring_begin(request, 6);
- if (IS_ERR(cs))
- return PTR_ERR(cs);
-
- cs = gen8_emit_pipe_control(cs, flags,
- LRC_PPHWSP_SCRATCH_ADDR);
- intel_ring_advance(request, cs);
- }
}
return 0;
diff --git a/drivers/gpu/drm/i915/gt/intel_workarounds.c b/drivers/gpu/drm/i915/gt/intel_workarounds.c
index 173a7f2..6c2f846 100644
--- a/drivers/gpu/drm/i915/gt/intel_workarounds.c
+++ b/drivers/gpu/drm/i915/gt/intel_workarounds.c
@@ -1529,15 +1529,34 @@ create_scratch(struct i915_address_space *vm, int count)
return ERR_PTR(err);
}
+static const struct {
+ u32 start;
+ u32 end;
+} mcr_ranges_gen8[] = {
+ { .start = 0x5500, .end = 0x55ff },
+ { .start = 0x7000, .end = 0x7fff },
+ { .start = 0x9400, .end = 0x97ff },
+ { .start = 0xb000, .end = 0xb3ff },
+ { .start = 0xe000, .end = 0xe7ff },
+ {},
+};
+
static bool mcr_range(struct drm_i915_private *i915, u32 offset)
{
+ int i;
+
+ if (INTEL_GEN(i915) < 8)
+ return false;
+
/*
- * Registers in this range are affected by the MCR selector
+ * Registers in these ranges are affected by the MCR selector
* which only controls CPU initiated MMIO. Routing does not
* work for CS access so we cannot verify them on this path.
*/
- if (INTEL_GEN(i915) >= 8 && (offset >= 0xb000 && offset <= 0xb4ff))
- return true;
+ for (i = 0; mcr_ranges_gen8[i].start; i++)
+ if (offset >= mcr_ranges_gen8[i].start &&
+ offset <= mcr_ranges_gen8[i].end)
+ return true;
return false;
}
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index 8410330..eec1d6a 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -505,8 +505,7 @@ static int i915_driver_early_probe(struct drm_i915_private *dev_priv)
mutex_init(&dev_priv->backlight_lock);
mutex_init(&dev_priv->sb_lock);
- pm_qos_add_request(&dev_priv->sb_qos,
- PM_QOS_CPU_DMA_LATENCY, PM_QOS_DEFAULT_VALUE);
+ cpu_latency_qos_add_request(&dev_priv->sb_qos, PM_QOS_DEFAULT_VALUE);
mutex_init(&dev_priv->av_mutex);
mutex_init(&dev_priv->wm.wm_mutex);
@@ -571,7 +570,7 @@ static void i915_driver_late_release(struct drm_i915_private *dev_priv)
vlv_free_s0ix_state(dev_priv);
i915_workqueues_cleanup(dev_priv);
- pm_qos_remove_request(&dev_priv->sb_qos);
+ cpu_latency_qos_remove_request(&dev_priv->sb_qos);
mutex_destroy(&dev_priv->sb_lock);
}
@@ -1229,8 +1228,7 @@ static int i915_driver_hw_probe(struct drm_i915_private *dev_priv)
}
}
- pm_qos_add_request(&dev_priv->pm_qos, PM_QOS_CPU_DMA_LATENCY,
- PM_QOS_DEFAULT_VALUE);
+ cpu_latency_qos_add_request(&dev_priv->pm_qos, PM_QOS_DEFAULT_VALUE);
intel_gt_init_workarounds(dev_priv);
@@ -1276,7 +1274,7 @@ static int i915_driver_hw_probe(struct drm_i915_private *dev_priv)
err_msi:
if (pdev->msi_enabled)
pci_disable_msi(pdev);
- pm_qos_remove_request(&dev_priv->pm_qos);
+ cpu_latency_qos_remove_request(&dev_priv->pm_qos);
err_mem_regions:
intel_memory_regions_driver_release(dev_priv);
err_ggtt:
@@ -1299,7 +1297,7 @@ static void i915_driver_hw_remove(struct drm_i915_private *dev_priv)
if (pdev->msi_enabled)
pci_disable_msi(pdev);
- pm_qos_remove_request(&dev_priv->pm_qos);
+ cpu_latency_qos_remove_request(&dev_priv->pm_qos);
}
/**
diff --git a/drivers/gpu/drm/i915/intel_sideband.c b/drivers/gpu/drm/i915/intel_sideband.c
index cbfb717..0648eda 100644
--- a/drivers/gpu/drm/i915/intel_sideband.c
+++ b/drivers/gpu/drm/i915/intel_sideband.c
@@ -60,7 +60,7 @@ static void __vlv_punit_get(struct drm_i915_private *i915)
* to the Valleyview P-unit and not all sideband communications.
*/
if (IS_VALLEYVIEW(i915)) {
- pm_qos_update_request(&i915->sb_qos, 0);
+ cpu_latency_qos_update_request(&i915->sb_qos, 0);
on_each_cpu(ping, NULL, 1);
}
}
@@ -68,7 +68,8 @@ static void __vlv_punit_get(struct drm_i915_private *i915)
static void __vlv_punit_put(struct drm_i915_private *i915)
{
if (IS_VALLEYVIEW(i915))
- pm_qos_update_request(&i915->sb_qos, PM_QOS_DEFAULT_VALUE);
+ cpu_latency_qos_update_request(&i915->sb_qos,
+ PM_QOS_DEFAULT_VALUE);
iosf_mbi_punit_release();
}
diff --git a/drivers/hid/hid-google-hammer.c b/drivers/hid/hid-google-hammer.c
index 2aa4ed1..85a054f 100644
--- a/drivers/hid/hid-google-hammer.c
+++ b/drivers/hid/hid-google-hammer.c
@@ -533,6 +533,8 @@ static const struct hid_device_id hammer_devices[] = {
{ HID_DEVICE(BUS_USB, HID_GROUP_GENERIC,
USB_VENDOR_ID_GOOGLE, USB_DEVICE_ID_GOOGLE_MASTERBALL) },
{ HID_DEVICE(BUS_USB, HID_GROUP_GENERIC,
+ USB_VENDOR_ID_GOOGLE, USB_DEVICE_ID_GOOGLE_MOONBALL) },
+ { HID_DEVICE(BUS_USB, HID_GROUP_GENERIC,
USB_VENDOR_ID_GOOGLE, USB_DEVICE_ID_GOOGLE_STAFF) },
{ HID_DEVICE(BUS_USB, HID_GROUP_GENERIC,
USB_VENDOR_ID_GOOGLE, USB_DEVICE_ID_GOOGLE_WAND) },
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 3a400ce..9f22134 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -478,6 +478,7 @@
#define USB_DEVICE_ID_GOOGLE_WHISKERS 0x5030
#define USB_DEVICE_ID_GOOGLE_MASTERBALL 0x503c
#define USB_DEVICE_ID_GOOGLE_MAGNEMITE 0x503d
+#define USB_DEVICE_ID_GOOGLE_MOONBALL 0x5044
#define USB_VENDOR_ID_GOTOP 0x08f2
#define USB_DEVICE_ID_SUPER_Q2 0x007f
@@ -726,6 +727,7 @@
#define USB_DEVICE_ID_LENOVO_X1_COVER 0x6085
#define USB_DEVICE_ID_LENOVO_X1_TAB 0x60a3
#define USB_DEVICE_ID_LENOVO_X1_TAB3 0x60b5
+#define USB_DEVICE_ID_LENOVO_PIXART_USB_MOUSE_608D 0x608d
#define USB_VENDOR_ID_LG 0x1fd2
#define USB_DEVICE_ID_LG_MULTITOUCH 0x0064
diff --git a/drivers/hid/hid-picolcd_fb.c b/drivers/hid/hid-picolcd_fb.c
index a549c42..33c102a 100644
--- a/drivers/hid/hid-picolcd_fb.c
+++ b/drivers/hid/hid-picolcd_fb.c
@@ -458,9 +458,9 @@ static ssize_t picolcd_fb_update_rate_show(struct device *dev,
if (ret >= PAGE_SIZE)
break;
else if (i == fb_update_rate)
- ret += snprintf(buf+ret, PAGE_SIZE-ret, "[%u] ", i);
+ ret += scnprintf(buf+ret, PAGE_SIZE-ret, "[%u] ", i);
else
- ret += snprintf(buf+ret, PAGE_SIZE-ret, "%u ", i);
+ ret += scnprintf(buf+ret, PAGE_SIZE-ret, "%u ", i);
if (ret > 0)
buf[min(ret, (size_t)PAGE_SIZE)-1] = '\n';
return ret;
diff --git a/drivers/hid/hid-quirks.c b/drivers/hid/hid-quirks.c
index 0e7b2d9..3735546 100644
--- a/drivers/hid/hid-quirks.c
+++ b/drivers/hid/hid-quirks.c
@@ -103,6 +103,7 @@ static const struct hid_device_id hid_quirks[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_PENSKETCH_M912), HID_QUIRK_MULTI_INPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_KYE_EASYPEN_M406XE), HID_QUIRK_MULTI_INPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_KYE, USB_DEVICE_ID_PIXART_USB_OPTICAL_MOUSE_ID2), HID_QUIRK_ALWAYS_POLL },
+ { HID_USB_DEVICE(USB_VENDOR_ID_LENOVO, USB_DEVICE_ID_LENOVO_PIXART_USB_MOUSE_608D), HID_QUIRK_ALWAYS_POLL },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_C007), HID_QUIRK_ALWAYS_POLL },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_C077), HID_QUIRK_ALWAYS_POLL },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_KEYBOARD_G710_PLUS), HID_QUIRK_NOGET },
diff --git a/drivers/hid/hid-sensor-custom.c b/drivers/hid/hid-sensor-custom.c
index fb827c2..4d25577 100644
--- a/drivers/hid/hid-sensor-custom.c
+++ b/drivers/hid/hid-sensor-custom.c
@@ -313,7 +313,7 @@ static ssize_t show_value(struct device *dev, struct device_attribute *attr,
while (i < ret) {
if (i + attribute->size > ret) {
- len += snprintf(&buf[len],
+ len += scnprintf(&buf[len],
PAGE_SIZE - len,
"%d ", values[i]);
break;
@@ -336,10 +336,10 @@ static ssize_t show_value(struct device *dev, struct device_attribute *attr,
++i;
break;
}
- len += snprintf(&buf[len], PAGE_SIZE - len,
+ len += scnprintf(&buf[len], PAGE_SIZE - len,
"%lld ", value);
}
- len += snprintf(&buf[len], PAGE_SIZE - len, "\n");
+ len += scnprintf(&buf[len], PAGE_SIZE - len, "\n");
return len;
} else if (input)
diff --git a/drivers/hsi/clients/cmt_speech.c b/drivers/hsi/clients/cmt_speech.c
index 9eec970..89869c6 100644
--- a/drivers/hsi/clients/cmt_speech.c
+++ b/drivers/hsi/clients/cmt_speech.c
@@ -965,14 +965,13 @@ static int cs_hsi_buf_config(struct cs_hsi_iface *hi,
if (old_state != hi->iface_state) {
if (hi->iface_state == CS_STATE_CONFIGURED) {
- pm_qos_add_request(&hi->pm_qos_req,
- PM_QOS_CPU_DMA_LATENCY,
+ cpu_latency_qos_add_request(&hi->pm_qos_req,
CS_QOS_LATENCY_FOR_DATA_USEC);
local_bh_disable();
cs_hsi_read_on_data(hi);
local_bh_enable();
} else if (old_state == CS_STATE_CONFIGURED) {
- pm_qos_remove_request(&hi->pm_qos_req);
+ cpu_latency_qos_remove_request(&hi->pm_qos_req);
}
}
return r;
@@ -1075,8 +1074,8 @@ static void cs_hsi_stop(struct cs_hsi_iface *hi)
WARN_ON(!cs_state_idle(hi->control_state));
WARN_ON(!cs_state_idle(hi->data_state));
- if (pm_qos_request_active(&hi->pm_qos_req))
- pm_qos_remove_request(&hi->pm_qos_req);
+ if (cpu_latency_qos_request_active(&hi->pm_qos_req))
+ cpu_latency_qos_remove_request(&hi->pm_qos_req);
spin_lock_bh(&hi->lock);
cs_hsi_free_data(hi);
diff --git a/drivers/hwtracing/intel_th/msu.c b/drivers/hwtracing/intel_th/msu.c
index 8e48c74..255f8f4 100644
--- a/drivers/hwtracing/intel_th/msu.c
+++ b/drivers/hwtracing/intel_th/msu.c
@@ -718,9 +718,6 @@ static int msc_win_set_lockout(struct msc_window *win,
if (old != expect) {
ret = -EINVAL;
- dev_warn_ratelimited(msc_dev(win->msc),
- "expected lockout state %d, got %d\n",
- expect, old);
goto unlock;
}
@@ -741,6 +738,10 @@ static int msc_win_set_lockout(struct msc_window *win,
/* from intel_th_msc_window_unlock(), don't warn if not locked */
if (expect == WIN_LOCKED && old == new)
return 0;
+
+ dev_warn_ratelimited(msc_dev(win->msc),
+ "expected lockout state %d, got %d\n",
+ expect, old);
}
return ret;
@@ -760,7 +761,7 @@ static int msc_configure(struct msc *msc)
lockdep_assert_held(&msc->buf_mutex);
if (msc->mode > MSC_MODE_MULTI)
- return -ENOTSUPP;
+ return -EINVAL;
if (msc->mode == MSC_MODE_MULTI) {
if (msc_win_set_lockout(msc->cur_win, WIN_READY, WIN_INUSE))
@@ -1294,7 +1295,7 @@ static int msc_buffer_alloc(struct msc *msc, unsigned long *nr_pages,
} else if (msc->mode == MSC_MODE_MULTI) {
ret = msc_buffer_multi_alloc(msc, nr_pages, nr_wins);
} else {
- ret = -ENOTSUPP;
+ ret = -EINVAL;
}
if (!ret) {
@@ -1530,7 +1531,7 @@ static ssize_t intel_th_msc_read(struct file *file, char __user *buf,
if (ret >= 0)
*ppos = iter->offset;
} else {
- ret = -ENOTSUPP;
+ ret = -EINVAL;
}
put_count:
diff --git a/drivers/hwtracing/intel_th/pci.c b/drivers/hwtracing/intel_th/pci.c
index e9d90b5..86aa6a4 100644
--- a/drivers/hwtracing/intel_th/pci.c
+++ b/drivers/hwtracing/intel_th/pci.c
@@ -235,6 +235,11 @@ static const struct pci_device_id intel_th_pci_id_table[] = {
.driver_data = (kernel_ulong_t)&intel_th_2x,
},
{
+ /* Elkhart Lake CPU */
+ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x4529),
+ .driver_data = (kernel_ulong_t)&intel_th_2x,
+ },
+ {
/* Elkhart Lake */
PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x4b26),
.driver_data = (kernel_ulong_t)&intel_th_2x,
diff --git a/drivers/hwtracing/stm/p_sys-t.c b/drivers/hwtracing/stm/p_sys-t.c
index b178a54..360b5c0 100644
--- a/drivers/hwtracing/stm/p_sys-t.c
+++ b/drivers/hwtracing/stm/p_sys-t.c
@@ -238,7 +238,7 @@ static struct configfs_attribute *sys_t_policy_attrs[] = {
static inline bool sys_t_need_ts(struct sys_t_output *op)
{
if (op->node.ts_interval &&
- time_after(op->ts_jiffies + op->node.ts_interval, jiffies)) {
+ time_after(jiffies, op->ts_jiffies + op->node.ts_interval)) {
op->ts_jiffies = jiffies;
return true;
@@ -250,8 +250,8 @@ static inline bool sys_t_need_ts(struct sys_t_output *op)
static bool sys_t_need_clock_sync(struct sys_t_output *op)
{
if (op->node.clocksync_interval &&
- time_after(op->clocksync_jiffies + op->node.clocksync_interval,
- jiffies)) {
+ time_after(jiffies,
+ op->clocksync_jiffies + op->node.clocksync_interval)) {
op->clocksync_jiffies = jiffies;
return true;
diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c
index d556066..65b84d5 100644
--- a/drivers/idle/intel_idle.c
+++ b/drivers/idle/intel_idle.c
@@ -2,8 +2,9 @@
/*
* intel_idle.c - native hardware idle loop for modern Intel processors
*
- * Copyright (c) 2013, Intel Corporation.
+ * Copyright (c) 2013 - 2020, Intel Corporation.
* Len Brown <len.brown@intel.com>
+ * Rafael J. Wysocki <rafael.j.wysocki@intel.com>
*/
/*
@@ -25,11 +26,6 @@
/*
* Known limitations
*
- * The driver currently initializes for_each_online_cpu() upon modprobe.
- * It it unaware of subsequent processors hot-added to the system.
- * This means that if you boot with maxcpus=n and later online
- * processors above n, those processors will use C1 only.
- *
* ACPI has a .suspend hack to turn off deep c-statees during suspend
* to avoid complications with the lapic timer workaround.
* Have not seen issues with suspend, but may need same workaround here.
@@ -55,7 +51,7 @@
#include <asm/mwait.h>
#include <asm/msr.h>
-#define INTEL_IDLE_VERSION "0.4.1"
+#define INTEL_IDLE_VERSION "0.5.1"
static struct cpuidle_driver intel_idle_driver = {
.name = "intel_idle",
@@ -65,11 +61,12 @@ static struct cpuidle_driver intel_idle_driver = {
static int max_cstate = CPUIDLE_STATE_MAX - 1;
static unsigned int disabled_states_mask;
-static unsigned int mwait_substates;
+static struct cpuidle_device __percpu *intel_idle_cpuidle_devices;
-#define LAPIC_TIMER_ALWAYS_RELIABLE 0xFFFFFFFF
-/* Reliable LAPIC Timer States, bit 1 for C1 etc. */
-static unsigned int lapic_timer_reliable_states = (1 << 1); /* Default to only C1 */
+static unsigned long auto_demotion_disable_flags;
+static bool disable_promotion_to_c1e;
+
+static bool lapic_timer_always_reliable;
struct idle_cpu {
struct cpuidle_state *state_table;
@@ -84,13 +81,10 @@ struct idle_cpu {
bool use_acpi;
};
-static const struct idle_cpu *icpu;
-static struct cpuidle_device __percpu *intel_idle_cpuidle_devices;
-static int intel_idle(struct cpuidle_device *dev,
- struct cpuidle_driver *drv, int index);
-static void intel_idle_s2idle(struct cpuidle_device *dev,
- struct cpuidle_driver *drv, int index);
-static struct cpuidle_state *cpuidle_state_table;
+static const struct idle_cpu *icpu __initdata;
+static struct cpuidle_state *cpuidle_state_table __initdata;
+
+static unsigned int mwait_substates __initdata;
/*
* Enable this state by default even if the ACPI _CST does not list it.
@@ -103,7 +97,7 @@ static struct cpuidle_state *cpuidle_state_table;
* If this flag is set, SW flushes the TLB, so even if the
* HW doesn't do the flushing, this flag is safe to use.
*/
-#define CPUIDLE_FLAG_TLB_FLUSHED 0x10000
+#define CPUIDLE_FLAG_TLB_FLUSHED BIT(16)
/*
* MWAIT takes an 8-bit "hint" in EAX "suggesting"
@@ -115,12 +109,87 @@ static struct cpuidle_state *cpuidle_state_table;
#define flg2MWAIT(flags) (((flags) >> 24) & 0xFF)
#define MWAIT2flg(eax) ((eax & 0xFF) << 24)
+/**
+ * intel_idle - Ask the processor to enter the given idle state.
+ * @dev: cpuidle device of the target CPU.
+ * @drv: cpuidle driver (assumed to point to intel_idle_driver).
+ * @index: Target idle state index.
+ *
+ * Use the MWAIT instruction to notify the processor that the CPU represented by
+ * @dev is idle and it can try to enter the idle state corresponding to @index.
+ *
+ * If the local APIC timer is not known to be reliable in the target idle state,
+ * enable one-shot tick broadcasting for the target CPU before executing MWAIT.
+ *
+ * Optionally call leave_mm() for the target CPU upfront to avoid wakeups due to
+ * flushing user TLBs.
+ *
+ * Must be called under local_irq_disable().
+ */
+static __cpuidle int intel_idle(struct cpuidle_device *dev,
+ struct cpuidle_driver *drv, int index)
+{
+ struct cpuidle_state *state = &drv->states[index];
+ unsigned long eax = flg2MWAIT(state->flags);
+ unsigned long ecx = 1; /* break on interrupt flag */
+ bool uninitialized_var(tick);
+ int cpu = smp_processor_id();
+
+ /*
+ * leave_mm() to avoid costly and often unnecessary wakeups
+ * for flushing the user TLB's associated with the active mm.
+ */
+ if (state->flags & CPUIDLE_FLAG_TLB_FLUSHED)
+ leave_mm(cpu);
+
+ if (!static_cpu_has(X86_FEATURE_ARAT) && !lapic_timer_always_reliable) {
+ /*
+ * Switch over to one-shot tick broadcast if the target C-state
+ * is deeper than C1.
+ */
+ if ((eax >> MWAIT_SUBSTATE_SIZE) & MWAIT_CSTATE_MASK) {
+ tick = true;
+ tick_broadcast_enter();
+ } else {
+ tick = false;
+ }
+ }
+
+ mwait_idle_with_hints(eax, ecx);
+
+ if (!static_cpu_has(X86_FEATURE_ARAT) && tick)
+ tick_broadcast_exit();
+
+ return index;
+}
+
+/**
+ * intel_idle_s2idle - Ask the processor to enter the given idle state.
+ * @dev: cpuidle device of the target CPU.
+ * @drv: cpuidle driver (assumed to point to intel_idle_driver).
+ * @index: Target idle state index.
+ *
+ * Use the MWAIT instruction to notify the processor that the CPU represented by
+ * @dev is idle and it can try to enter the idle state corresponding to @index.
+ *
+ * Invoked as a suspend-to-idle callback routine with frozen user space, frozen
+ * scheduler tick and suspended scheduler clock on the target CPU.
+ */
+static __cpuidle void intel_idle_s2idle(struct cpuidle_device *dev,
+ struct cpuidle_driver *drv, int index)
+{
+ unsigned long eax = flg2MWAIT(drv->states[index].flags);
+ unsigned long ecx = 1; /* break on interrupt flag */
+
+ mwait_idle_with_hints(eax, ecx);
+}
+
/*
* States are indexed by the cstate number,
* which is also the index into the MWAIT hint array.
* Thus C0 is a dummy.
*/
-static struct cpuidle_state nehalem_cstates[] = {
+static struct cpuidle_state nehalem_cstates[] __initdata = {
{
.name = "C1",
.desc = "MWAIT 0x00",
@@ -157,7 +226,7 @@ static struct cpuidle_state nehalem_cstates[] = {
.enter = NULL }
};
-static struct cpuidle_state snb_cstates[] = {
+static struct cpuidle_state snb_cstates[] __initdata = {
{
.name = "C1",
.desc = "MWAIT 0x00",
@@ -202,7 +271,7 @@ static struct cpuidle_state snb_cstates[] = {
.enter = NULL }
};
-static struct cpuidle_state byt_cstates[] = {
+static struct cpuidle_state byt_cstates[] __initdata = {
{
.name = "C1",
.desc = "MWAIT 0x00",
@@ -247,7 +316,7 @@ static struct cpuidle_state byt_cstates[] = {
.enter = NULL }
};
-static struct cpuidle_state cht_cstates[] = {
+static struct cpuidle_state cht_cstates[] __initdata = {
{
.name = "C1",
.desc = "MWAIT 0x00",
@@ -292,7 +361,7 @@ static struct cpuidle_state cht_cstates[] = {
.enter = NULL }
};
-static struct cpuidle_state ivb_cstates[] = {
+static struct cpuidle_state ivb_cstates[] __initdata = {
{
.name = "C1",
.desc = "MWAIT 0x00",
@@ -337,7 +406,7 @@ static struct cpuidle_state ivb_cstates[] = {
.enter = NULL }
};
-static struct cpuidle_state ivt_cstates[] = {
+static struct cpuidle_state ivt_cstates[] __initdata = {
{
.name = "C1",
.desc = "MWAIT 0x00",
@@ -374,7 +443,7 @@ static struct cpuidle_state ivt_cstates[] = {
.enter = NULL }
};
-static struct cpuidle_state ivt_cstates_4s[] = {
+static struct cpuidle_state ivt_cstates_4s[] __initdata = {
{
.name = "C1",
.desc = "MWAIT 0x00",
@@ -411,7 +480,7 @@ static struct cpuidle_state ivt_cstates_4s[] = {
.enter = NULL }
};
-static struct cpuidle_state ivt_cstates_8s[] = {
+static struct cpuidle_state ivt_cstates_8s[] __initdata = {
{
.name = "C1",
.desc = "MWAIT 0x00",
@@ -448,7 +517,7 @@ static struct cpuidle_state ivt_cstates_8s[] = {
.enter = NULL }
};
-static struct cpuidle_state hsw_cstates[] = {
+static struct cpuidle_state hsw_cstates[] __initdata = {
{
.name = "C1",
.desc = "MWAIT 0x00",
@@ -516,7 +585,7 @@ static struct cpuidle_state hsw_cstates[] = {
{
.enter = NULL }
};
-static struct cpuidle_state bdw_cstates[] = {
+static struct cpuidle_state bdw_cstates[] __initdata = {
{
.name = "C1",
.desc = "MWAIT 0x00",
@@ -585,7 +654,7 @@ static struct cpuidle_state bdw_cstates[] = {
.enter = NULL }
};
-static struct cpuidle_state skl_cstates[] = {
+static struct cpuidle_state skl_cstates[] __initdata = {
{
.name = "C1",
.desc = "MWAIT 0x00",
@@ -654,7 +723,7 @@ static struct cpuidle_state skl_cstates[] = {
.enter = NULL }
};
-static struct cpuidle_state skx_cstates[] = {
+static struct cpuidle_state skx_cstates[] __initdata = {
{
.name = "C1",
.desc = "MWAIT 0x00",
@@ -683,7 +752,7 @@ static struct cpuidle_state skx_cstates[] = {
.enter = NULL }
};
-static struct cpuidle_state atom_cstates[] = {
+static struct cpuidle_state atom_cstates[] __initdata = {
{
.name = "C1E",
.desc = "MWAIT 0x00",
@@ -719,7 +788,7 @@ static struct cpuidle_state atom_cstates[] = {
{
.enter = NULL }
};
-static struct cpuidle_state tangier_cstates[] = {
+static struct cpuidle_state tangier_cstates[] __initdata = {
{
.name = "C1",
.desc = "MWAIT 0x00",
@@ -763,7 +832,7 @@ static struct cpuidle_state tangier_cstates[] = {
{
.enter = NULL }
};
-static struct cpuidle_state avn_cstates[] = {
+static struct cpuidle_state avn_cstates[] __initdata = {
{
.name = "C1",
.desc = "MWAIT 0x00",
@@ -783,7 +852,7 @@ static struct cpuidle_state avn_cstates[] = {
{
.enter = NULL }
};
-static struct cpuidle_state knl_cstates[] = {
+static struct cpuidle_state knl_cstates[] __initdata = {
{
.name = "C1",
.desc = "MWAIT 0x00",
@@ -804,7 +873,7 @@ static struct cpuidle_state knl_cstates[] = {
.enter = NULL }
};
-static struct cpuidle_state bxt_cstates[] = {
+static struct cpuidle_state bxt_cstates[] __initdata = {
{
.name = "C1",
.desc = "MWAIT 0x00",
@@ -865,7 +934,7 @@ static struct cpuidle_state bxt_cstates[] = {
.enter = NULL }
};
-static struct cpuidle_state dnv_cstates[] = {
+static struct cpuidle_state dnv_cstates[] __initdata = {
{
.name = "C1",
.desc = "MWAIT 0x00",
@@ -894,174 +963,116 @@ static struct cpuidle_state dnv_cstates[] = {
.enter = NULL }
};
-/**
- * intel_idle
- * @dev: cpuidle_device
- * @drv: cpuidle driver
- * @index: index of cpuidle state
- *
- * Must be called under local_irq_disable().
- */
-static __cpuidle int intel_idle(struct cpuidle_device *dev,
- struct cpuidle_driver *drv, int index)
-{
- unsigned long ecx = 1; /* break on interrupt flag */
- struct cpuidle_state *state = &drv->states[index];
- unsigned long eax = flg2MWAIT(state->flags);
- unsigned int cstate;
- bool uninitialized_var(tick);
- int cpu = smp_processor_id();
-
- /*
- * leave_mm() to avoid costly and often unnecessary wakeups
- * for flushing the user TLB's associated with the active mm.
- */
- if (state->flags & CPUIDLE_FLAG_TLB_FLUSHED)
- leave_mm(cpu);
-
- if (!static_cpu_has(X86_FEATURE_ARAT)) {
- cstate = (((eax) >> MWAIT_SUBSTATE_SIZE) &
- MWAIT_CSTATE_MASK) + 1;
- tick = false;
- if (!(lapic_timer_reliable_states & (1 << (cstate)))) {
- tick = true;
- tick_broadcast_enter();
- }
- }
-
- mwait_idle_with_hints(eax, ecx);
-
- if (!static_cpu_has(X86_FEATURE_ARAT) && tick)
- tick_broadcast_exit();
-
- return index;
-}
-
-/**
- * intel_idle_s2idle - simplified "enter" callback routine for suspend-to-idle
- * @dev: cpuidle_device
- * @drv: cpuidle driver
- * @index: state index
- */
-static void intel_idle_s2idle(struct cpuidle_device *dev,
- struct cpuidle_driver *drv, int index)
-{
- unsigned long ecx = 1; /* break on interrupt flag */
- unsigned long eax = flg2MWAIT(drv->states[index].flags);
-
- mwait_idle_with_hints(eax, ecx);
-}
-
-static const struct idle_cpu idle_cpu_nehalem = {
+static const struct idle_cpu idle_cpu_nehalem __initconst = {
.state_table = nehalem_cstates,
.auto_demotion_disable_flags = NHM_C1_AUTO_DEMOTE | NHM_C3_AUTO_DEMOTE,
.disable_promotion_to_c1e = true,
};
-static const struct idle_cpu idle_cpu_nhx = {
+static const struct idle_cpu idle_cpu_nhx __initconst = {
.state_table = nehalem_cstates,
.auto_demotion_disable_flags = NHM_C1_AUTO_DEMOTE | NHM_C3_AUTO_DEMOTE,
.disable_promotion_to_c1e = true,
.use_acpi = true,
};
-static const struct idle_cpu idle_cpu_atom = {
+static const struct idle_cpu idle_cpu_atom __initconst = {
.state_table = atom_cstates,
};
-static const struct idle_cpu idle_cpu_tangier = {
+static const struct idle_cpu idle_cpu_tangier __initconst = {
.state_table = tangier_cstates,
};
-static const struct idle_cpu idle_cpu_lincroft = {
+static const struct idle_cpu idle_cpu_lincroft __initconst = {
.state_table = atom_cstates,
.auto_demotion_disable_flags = ATM_LNC_C6_AUTO_DEMOTE,
};
-static const struct idle_cpu idle_cpu_snb = {
+static const struct idle_cpu idle_cpu_snb __initconst = {
.state_table = snb_cstates,
.disable_promotion_to_c1e = true,
};
-static const struct idle_cpu idle_cpu_snx = {
+static const struct idle_cpu idle_cpu_snx __initconst = {
.state_table = snb_cstates,
.disable_promotion_to_c1e = true,
.use_acpi = true,
};
-static const struct idle_cpu idle_cpu_byt = {
+static const struct idle_cpu idle_cpu_byt __initconst = {
.state_table = byt_cstates,
.disable_promotion_to_c1e = true,
.byt_auto_demotion_disable_flag = true,
};
-static const struct idle_cpu idle_cpu_cht = {
+static const struct idle_cpu idle_cpu_cht __initconst = {
.state_table = cht_cstates,
.disable_promotion_to_c1e = true,
.byt_auto_demotion_disable_flag = true,
};
-static const struct idle_cpu idle_cpu_ivb = {
+static const struct idle_cpu idle_cpu_ivb __initconst = {
.state_table = ivb_cstates,
.disable_promotion_to_c1e = true,
};
-static const struct idle_cpu idle_cpu_ivt = {
+static const struct idle_cpu idle_cpu_ivt __initconst = {
.state_table = ivt_cstates,
.disable_promotion_to_c1e = true,
.use_acpi = true,
};
-static const struct idle_cpu idle_cpu_hsw = {
+static const struct idle_cpu idle_cpu_hsw __initconst = {
.state_table = hsw_cstates,
.disable_promotion_to_c1e = true,
};
-static const struct idle_cpu idle_cpu_hsx = {
+static const struct idle_cpu idle_cpu_hsx __initconst = {
.state_table = hsw_cstates,
.disable_promotion_to_c1e = true,
.use_acpi = true,
};
-static const struct idle_cpu idle_cpu_bdw = {
+static const struct idle_cpu idle_cpu_bdw __initconst = {
.state_table = bdw_cstates,
.disable_promotion_to_c1e = true,
};
-static const struct idle_cpu idle_cpu_bdx = {
+static const struct idle_cpu idle_cpu_bdx __initconst = {
.state_table = bdw_cstates,
.disable_promotion_to_c1e = true,
.use_acpi = true,
};
-static const struct idle_cpu idle_cpu_skl = {
+static const struct idle_cpu idle_cpu_skl __initconst = {
.state_table = skl_cstates,
.disable_promotion_to_c1e = true,
};
-static const struct idle_cpu idle_cpu_skx = {
+static const struct idle_cpu idle_cpu_skx __initconst = {
.state_table = skx_cstates,
.disable_promotion_to_c1e = true,
.use_acpi = true,
};
-static const struct idle_cpu idle_cpu_avn = {
+static const struct idle_cpu idle_cpu_avn __initconst = {
.state_table = avn_cstates,
.disable_promotion_to_c1e = true,
.use_acpi = true,
};
-static const struct idle_cpu idle_cpu_knl = {
+static const struct idle_cpu idle_cpu_knl __initconst = {
.state_table = knl_cstates,
.use_acpi = true,
};
-static const struct idle_cpu idle_cpu_bxt = {
+static const struct idle_cpu idle_cpu_bxt __initconst = {
.state_table = bxt_cstates,
.disable_promotion_to_c1e = true,
};
-static const struct idle_cpu idle_cpu_dnv = {
+static const struct idle_cpu idle_cpu_dnv __initconst = {
.state_table = dnv_cstates,
.disable_promotion_to_c1e = true,
.use_acpi = true,
@@ -1273,11 +1284,11 @@ static inline void intel_idle_init_cstates_acpi(struct cpuidle_driver *drv) { }
static inline bool intel_idle_off_by_default(u32 mwait_hint) { return false; }
#endif /* !CONFIG_ACPI_PROCESSOR_CSTATE */
-/*
- * ivt_idle_state_table_update(void)
+/**
+ * ivt_idle_state_table_update - Tune the idle states table for Ivy Town.
*
- * Tune IVT multi-socket targets
- * Assumption: num_sockets == (max_package_num + 1)
+ * Tune IVT multi-socket targets.
+ * Assumption: num_sockets == (max_package_num + 1).
*/
static void __init ivt_idle_state_table_update(void)
{
@@ -1323,11 +1334,11 @@ static unsigned long long __init irtl_2_usec(unsigned long long irtl)
return div_u64((irtl & 0x3FF) * ns, NSEC_PER_USEC);
}
-/*
- * bxt_idle_state_table_update(void)
+/**
+ * bxt_idle_state_table_update - Fix up the Broxton idle states table.
*
- * On BXT, we trust the IRTL to show the definitive maximum latency
- * We use the same value for target_residency.
+ * On BXT, trust the IRTL (Interrupt Response Time Limit) MSR to show the
+ * definitive maximum latency and use the same value for target_residency.
*/
static void __init bxt_idle_state_table_update(void)
{
@@ -1370,11 +1381,11 @@ static void __init bxt_idle_state_table_update(void)
}
}
-/*
- * sklh_idle_state_table_update(void)
+
+/**
+ * sklh_idle_state_table_update - Fix up the Sky Lake idle states table.
*
- * On SKL-H (model 0x5e) disable C8 and C9 if:
- * C10 is enabled and SGX disabled
+ * On SKL-H (model 0x5e) skip C8 and C9 if C10 is enabled and SGX disabled.
*/
static void __init sklh_idle_state_table_update(void)
{
@@ -1485,9 +1496,9 @@ static void __init intel_idle_init_cstates_icpu(struct cpuidle_driver *drv)
}
}
-/*
- * intel_idle_cpuidle_driver_init()
- * allocate, initialize cpuidle_states
+/**
+ * intel_idle_cpuidle_driver_init - Create the list of available idle states.
+ * @drv: cpuidle driver structure to initialize.
*/
static void __init intel_idle_cpuidle_driver_init(struct cpuidle_driver *drv)
{
@@ -1509,7 +1520,7 @@ static void auto_demotion_disable(void)
unsigned long long msr_bits;
rdmsrl(MSR_PKG_CST_CONFIG_CONTROL, msr_bits);
- msr_bits &= ~(icpu->auto_demotion_disable_flags);
+ msr_bits &= ~auto_demotion_disable_flags;
wrmsrl(MSR_PKG_CST_CONFIG_CONTROL, msr_bits);
}
@@ -1522,10 +1533,12 @@ static void c1e_promotion_disable(void)
wrmsrl(MSR_IA32_POWER_CTL, msr_bits);
}
-/*
- * intel_idle_cpu_init()
- * allocate, initialize, register cpuidle_devices
- * @cpu: cpu/core to initialize
+/**
+ * intel_idle_cpu_init - Register the target CPU with the cpuidle core.
+ * @cpu: CPU to initialize.
+ *
+ * Register a cpuidle device object for @cpu and update its MSRs in accordance
+ * with the processor model flags.
*/
static int intel_idle_cpu_init(unsigned int cpu)
{
@@ -1539,13 +1552,10 @@ static int intel_idle_cpu_init(unsigned int cpu)
return -EIO;
}
- if (!icpu)
- return 0;
-
- if (icpu->auto_demotion_disable_flags)
+ if (auto_demotion_disable_flags)
auto_demotion_disable();
- if (icpu->disable_promotion_to_c1e)
+ if (disable_promotion_to_c1e)
c1e_promotion_disable();
return 0;
@@ -1555,7 +1565,7 @@ static int intel_idle_cpu_online(unsigned int cpu)
{
struct cpuidle_device *dev;
- if (lapic_timer_reliable_states != LAPIC_TIMER_ALWAYS_RELIABLE)
+ if (!lapic_timer_always_reliable)
tick_broadcast_enable();
/*
@@ -1623,6 +1633,8 @@ static int __init intel_idle_init(void)
icpu = (const struct idle_cpu *)id->driver_data;
if (icpu) {
cpuidle_state_table = icpu->state_table;
+ auto_demotion_disable_flags = icpu->auto_demotion_disable_flags;
+ disable_promotion_to_c1e = icpu->disable_promotion_to_c1e;
if (icpu->use_acpi || force_use_acpi)
intel_idle_acpi_cst_extract();
} else if (!intel_idle_acpi_cst_extract()) {
@@ -1647,15 +1659,15 @@ static int __init intel_idle_init(void)
}
if (boot_cpu_has(X86_FEATURE_ARAT)) /* Always Reliable APIC Timer */
- lapic_timer_reliable_states = LAPIC_TIMER_ALWAYS_RELIABLE;
+ lapic_timer_always_reliable = true;
retval = cpuhp_setup_state(CPUHP_AP_ONLINE_DYN, "idle/intel:online",
intel_idle_cpu_online, NULL);
if (retval < 0)
goto hp_setup_fail;
- pr_debug("lapic_timer_reliable_states 0x%x\n",
- lapic_timer_reliable_states);
+ pr_debug("Local APIC timer is reliable in %s\n",
+ lapic_timer_always_reliable ? "all C-states" : "C1");
return 0;
diff --git a/drivers/iio/accel/adxl372.c b/drivers/iio/accel/adxl372.c
index 67b8817..60daf04 100644
--- a/drivers/iio/accel/adxl372.c
+++ b/drivers/iio/accel/adxl372.c
@@ -237,6 +237,7 @@ static const struct adxl372_axis_lookup adxl372_axis_lookup_table[] = {
.realbits = 12, \
.storagebits = 16, \
.shift = 4, \
+ .endianness = IIO_BE, \
}, \
}
diff --git a/drivers/iio/accel/st_accel_i2c.c b/drivers/iio/accel/st_accel_i2c.c
index 633955d..849cf74 100644
--- a/drivers/iio/accel/st_accel_i2c.c
+++ b/drivers/iio/accel/st_accel_i2c.c
@@ -110,7 +110,7 @@ MODULE_DEVICE_TABLE(of, st_accel_of_match);
#ifdef CONFIG_ACPI
static const struct acpi_device_id st_accel_acpi_match[] = {
- {"SMO8840", (kernel_ulong_t)LNG2DM_ACCEL_DEV_NAME},
+ {"SMO8840", (kernel_ulong_t)LIS2DH12_ACCEL_DEV_NAME},
{"SMO8A90", (kernel_ulong_t)LNG2DM_ACCEL_DEV_NAME},
{ },
};
diff --git a/drivers/iio/adc/at91-sama5d2_adc.c b/drivers/iio/adc/at91-sama5d2_adc.c
index a5c7771..9d96f7d 100644
--- a/drivers/iio/adc/at91-sama5d2_adc.c
+++ b/drivers/iio/adc/at91-sama5d2_adc.c
@@ -723,6 +723,7 @@ static int at91_adc_configure_trigger(struct iio_trigger *trig, bool state)
for_each_set_bit(bit, indio->active_scan_mask, indio->num_channels) {
struct iio_chan_spec const *chan = at91_adc_chan_get(indio, bit);
+ u32 cor;
if (!chan)
continue;
@@ -732,6 +733,20 @@ static int at91_adc_configure_trigger(struct iio_trigger *trig, bool state)
continue;
if (state) {
+ cor = at91_adc_readl(st, AT91_SAMA5D2_COR);
+
+ if (chan->differential)
+ cor |= (BIT(chan->channel) |
+ BIT(chan->channel2)) <<
+ AT91_SAMA5D2_COR_DIFF_OFFSET;
+ else
+ cor &= ~(BIT(chan->channel) <<
+ AT91_SAMA5D2_COR_DIFF_OFFSET);
+
+ at91_adc_writel(st, AT91_SAMA5D2_COR, cor);
+ }
+
+ if (state) {
at91_adc_writel(st, AT91_SAMA5D2_CHER,
BIT(chan->channel));
/* enable irq only if not using DMA */
diff --git a/drivers/iio/adc/stm32-dfsdm-adc.c b/drivers/iio/adc/stm32-dfsdm-adc.c
index 2aad2cd..76a60d9 100644
--- a/drivers/iio/adc/stm32-dfsdm-adc.c
+++ b/drivers/iio/adc/stm32-dfsdm-adc.c
@@ -842,31 +842,6 @@ static inline void stm32_dfsdm_process_data(struct stm32_dfsdm_adc *adc,
}
}
-static irqreturn_t stm32_dfsdm_adc_trigger_handler(int irq, void *p)
-{
- struct iio_poll_func *pf = p;
- struct iio_dev *indio_dev = pf->indio_dev;
- struct stm32_dfsdm_adc *adc = iio_priv(indio_dev);
- int available = stm32_dfsdm_adc_dma_residue(adc);
-
- while (available >= indio_dev->scan_bytes) {
- s32 *buffer = (s32 *)&adc->rx_buf[adc->bufi];
-
- stm32_dfsdm_process_data(adc, buffer);
-
- iio_push_to_buffers_with_timestamp(indio_dev, buffer,
- pf->timestamp);
- available -= indio_dev->scan_bytes;
- adc->bufi += indio_dev->scan_bytes;
- if (adc->bufi >= adc->buf_sz)
- adc->bufi = 0;
- }
-
- iio_trigger_notify_done(indio_dev->trig);
-
- return IRQ_HANDLED;
-}
-
static void stm32_dfsdm_dma_buffer_done(void *data)
{
struct iio_dev *indio_dev = data;
@@ -874,11 +849,6 @@ static void stm32_dfsdm_dma_buffer_done(void *data)
int available = stm32_dfsdm_adc_dma_residue(adc);
size_t old_pos;
- if (indio_dev->currentmode & INDIO_BUFFER_TRIGGERED) {
- iio_trigger_poll_chained(indio_dev->trig);
- return;
- }
-
/*
* FIXME: In Kernel interface does not support cyclic DMA buffer,and
* offers only an interface to push data samples per samples.
@@ -906,7 +876,15 @@ static void stm32_dfsdm_dma_buffer_done(void *data)
adc->bufi = 0;
old_pos = 0;
}
- /* regular iio buffer without trigger */
+ /*
+ * In DMA mode the trigger services of IIO are not used
+ * (e.g. no call to iio_trigger_poll).
+ * Calling irq handler associated to the hardware trigger is not
+ * relevant as the conversions have already been done. Data
+ * transfers are performed directly in DMA callback instead.
+ * This implementation avoids to call trigger irq handler that
+ * may sleep, in an atomic context (DMA irq handler context).
+ */
if (adc->dev_data->type == DFSDM_IIO)
iio_push_to_buffers(indio_dev, buffer);
}
@@ -1536,8 +1514,7 @@ static int stm32_dfsdm_adc_init(struct iio_dev *indio_dev)
}
ret = iio_triggered_buffer_setup(indio_dev,
- &iio_pollfunc_store_time,
- &stm32_dfsdm_adc_trigger_handler,
+ &iio_pollfunc_store_time, NULL,
&stm32_dfsdm_buffer_setup_ops);
if (ret) {
stm32_dfsdm_dma_release(indio_dev);
diff --git a/drivers/iio/chemical/Kconfig b/drivers/iio/chemical/Kconfig
index 0b91de4..a7e65a5 100644
--- a/drivers/iio/chemical/Kconfig
+++ b/drivers/iio/chemical/Kconfig
@@ -91,6 +91,8 @@
tristate "SPS30 particulate matter sensor"
depends on I2C
select CRC8
+ select IIO_BUFFER
+ select IIO_TRIGGERED_BUFFER
help
Say Y here to build support for the Sensirion SPS30 particulate
matter sensor.
diff --git a/drivers/iio/light/vcnl4000.c b/drivers/iio/light/vcnl4000.c
index b0e241a..e5b00a6 100644
--- a/drivers/iio/light/vcnl4000.c
+++ b/drivers/iio/light/vcnl4000.c
@@ -167,16 +167,17 @@ static int vcnl4200_init(struct vcnl4000_data *data)
data->vcnl4200_ps.reg = VCNL4200_PS_DATA;
switch (id) {
case VCNL4200_PROD_ID:
- /* Integration time is 50ms, but the experiments */
- /* show 54ms in total. */
- data->vcnl4200_al.sampling_rate = ktime_set(0, 54000 * 1000);
- data->vcnl4200_ps.sampling_rate = ktime_set(0, 4200 * 1000);
+ /* Default wait time is 50ms, add 20% tolerance. */
+ data->vcnl4200_al.sampling_rate = ktime_set(0, 60000 * 1000);
+ /* Default wait time is 4.8ms, add 20% tolerance. */
+ data->vcnl4200_ps.sampling_rate = ktime_set(0, 5760 * 1000);
data->al_scale = 24000;
break;
case VCNL4040_PROD_ID:
- /* Integration time is 80ms, add 10ms. */
- data->vcnl4200_al.sampling_rate = ktime_set(0, 100000 * 1000);
- data->vcnl4200_ps.sampling_rate = ktime_set(0, 100000 * 1000);
+ /* Default wait time is 80ms, add 20% tolerance. */
+ data->vcnl4200_al.sampling_rate = ktime_set(0, 96000 * 1000);
+ /* Default wait time is 5ms, add 20% tolerance. */
+ data->vcnl4200_ps.sampling_rate = ktime_set(0, 6000 * 1000);
data->al_scale = 120000;
break;
}
diff --git a/drivers/iio/magnetometer/ak8974.c b/drivers/iio/magnetometer/ak8974.c
index fc7e910..d329967 100644
--- a/drivers/iio/magnetometer/ak8974.c
+++ b/drivers/iio/magnetometer/ak8974.c
@@ -564,7 +564,7 @@ static int ak8974_read_raw(struct iio_dev *indio_dev,
* We read all axes and discard all but one, for optimized
* reading, use the triggered buffer.
*/
- *val = le16_to_cpu(hw_values[chan->address]);
+ *val = (s16)le16_to_cpu(hw_values[chan->address]);
ret = IIO_VAL_INT;
}
diff --git a/drivers/iio/proximity/ping.c b/drivers/iio/proximity/ping.c
index 34aff10..12b893c 100644
--- a/drivers/iio/proximity/ping.c
+++ b/drivers/iio/proximity/ping.c
@@ -269,7 +269,7 @@ static const struct iio_chan_spec ping_chan_spec[] = {
static const struct of_device_id of_ping_match[] = {
{ .compatible = "parallax,ping", .data = &pa_ping_cfg},
- { .compatible = "parallax,laserping", .data = &pa_ping_cfg},
+ { .compatible = "parallax,laserping", .data = &pa_laser_ping_cfg},
{},
};
diff --git a/drivers/iio/trigger/stm32-timer-trigger.c b/drivers/iio/trigger/stm32-timer-trigger.c
index 2e0d32a..2f82e8c 100644
--- a/drivers/iio/trigger/stm32-timer-trigger.c
+++ b/drivers/iio/trigger/stm32-timer-trigger.c
@@ -161,7 +161,8 @@ static int stm32_timer_start(struct stm32_timer_trigger *priv,
return 0;
}
-static void stm32_timer_stop(struct stm32_timer_trigger *priv)
+static void stm32_timer_stop(struct stm32_timer_trigger *priv,
+ struct iio_trigger *trig)
{
u32 ccer, cr1;
@@ -179,6 +180,12 @@ static void stm32_timer_stop(struct stm32_timer_trigger *priv)
regmap_write(priv->regmap, TIM_PSC, 0);
regmap_write(priv->regmap, TIM_ARR, 0);
+ /* Force disable master mode */
+ if (stm32_timer_is_trgo2_name(trig->name))
+ regmap_update_bits(priv->regmap, TIM_CR2, TIM_CR2_MMS2, 0);
+ else
+ regmap_update_bits(priv->regmap, TIM_CR2, TIM_CR2_MMS, 0);
+
/* Make sure that registers are updated */
regmap_update_bits(priv->regmap, TIM_EGR, TIM_EGR_UG, TIM_EGR_UG);
}
@@ -197,7 +204,7 @@ static ssize_t stm32_tt_store_frequency(struct device *dev,
return ret;
if (freq == 0) {
- stm32_timer_stop(priv);
+ stm32_timer_stop(priv, trig);
} else {
ret = stm32_timer_start(priv, trig, freq);
if (ret)
diff --git a/drivers/media/pci/saa7134/saa7134-video.c b/drivers/media/pci/saa7134/saa7134-video.c
index 342cabf4..a8ac94f 100644
--- a/drivers/media/pci/saa7134/saa7134-video.c
+++ b/drivers/media/pci/saa7134/saa7134-video.c
@@ -1008,8 +1008,7 @@ int saa7134_vb2_start_streaming(struct vb2_queue *vq, unsigned int count)
*/
if ((dmaq == &dev->video_q && !vb2_is_streaming(&dev->vbi_vbq)) ||
(dmaq == &dev->vbi_q && !vb2_is_streaming(&dev->video_vbq)))
- pm_qos_add_request(&dev->qos_request,
- PM_QOS_CPU_DMA_LATENCY, 20);
+ cpu_latency_qos_add_request(&dev->qos_request, 20);
dmaq->seq_nr = 0;
return 0;
@@ -1024,7 +1023,7 @@ void saa7134_vb2_stop_streaming(struct vb2_queue *vq)
if ((dmaq == &dev->video_q && !vb2_is_streaming(&dev->vbi_vbq)) ||
(dmaq == &dev->vbi_q && !vb2_is_streaming(&dev->video_vbq)))
- pm_qos_remove_request(&dev->qos_request);
+ cpu_latency_qos_remove_request(&dev->qos_request);
}
static const struct vb2_ops vb2_qops = {
diff --git a/drivers/media/platform/via-camera.c b/drivers/media/platform/via-camera.c
index 78841b9..1cd4f7b 100644
--- a/drivers/media/platform/via-camera.c
+++ b/drivers/media/platform/via-camera.c
@@ -646,7 +646,7 @@ static int viacam_vb2_start_streaming(struct vb2_queue *vq, unsigned int count)
* requirement which will keep the CPU out of the deeper sleep
* states.
*/
- pm_qos_add_request(&cam->qos_request, PM_QOS_CPU_DMA_LATENCY, 50);
+ cpu_latency_qos_add_request(&cam->qos_request, 50);
viacam_start_engine(cam);
return 0;
out:
@@ -662,7 +662,7 @@ static void viacam_vb2_stop_streaming(struct vb2_queue *vq)
struct via_camera *cam = vb2_get_drv_priv(vq);
struct via_buffer *buf, *tmp;
- pm_qos_remove_request(&cam->qos_request);
+ cpu_latency_qos_remove_request(&cam->qos_request);
viacam_stop_engine(cam);
list_for_each_entry_safe(buf, tmp, &cam->buffer_queue, queue) {
diff --git a/drivers/misc/cardreader/rts5227.c b/drivers/misc/cardreader/rts5227.c
index 4feed29..423fecc 100644
--- a/drivers/misc/cardreader/rts5227.c
+++ b/drivers/misc/cardreader/rts5227.c
@@ -394,7 +394,7 @@ static const struct pcr_ops rts522a_pcr_ops = {
void rts522a_init_params(struct rtsx_pcr *pcr)
{
rts5227_init_params(pcr);
-
+ pcr->tx_initial_phase = SET_CLOCK_PHASE(20, 20, 11);
pcr->reg_pm_ctrl3 = RTS522A_PM_CTRL3;
pcr->option.ocp_en = 1;
diff --git a/drivers/misc/cardreader/rts5249.c b/drivers/misc/cardreader/rts5249.c
index db936e4..1a81cda 100644
--- a/drivers/misc/cardreader/rts5249.c
+++ b/drivers/misc/cardreader/rts5249.c
@@ -618,6 +618,7 @@ static const struct pcr_ops rts524a_pcr_ops = {
void rts524a_init_params(struct rtsx_pcr *pcr)
{
rts5249_init_params(pcr);
+ pcr->tx_initial_phase = SET_CLOCK_PHASE(27, 29, 11);
pcr->option.ltr_l1off_sspwrgate = LTR_L1OFF_SSPWRGATE_5250_DEF;
pcr->option.ltr_l1off_snooze_sspwrgate =
LTR_L1OFF_SNOOZE_SSPWRGATE_5250_DEF;
@@ -733,6 +734,7 @@ static const struct pcr_ops rts525a_pcr_ops = {
void rts525a_init_params(struct rtsx_pcr *pcr)
{
rts5249_init_params(pcr);
+ pcr->tx_initial_phase = SET_CLOCK_PHASE(25, 29, 11);
pcr->option.ltr_l1off_sspwrgate = LTR_L1OFF_SSPWRGATE_5250_DEF;
pcr->option.ltr_l1off_snooze_sspwrgate =
LTR_L1OFF_SNOOZE_SSPWRGATE_5250_DEF;
diff --git a/drivers/misc/cardreader/rts5260.c b/drivers/misc/cardreader/rts5260.c
index 4214f02..711054e 100644
--- a/drivers/misc/cardreader/rts5260.c
+++ b/drivers/misc/cardreader/rts5260.c
@@ -662,7 +662,7 @@ void rts5260_init_params(struct rtsx_pcr *pcr)
pcr->sd30_drive_sel_1v8 = CFG_DRIVER_TYPE_B;
pcr->sd30_drive_sel_3v3 = CFG_DRIVER_TYPE_B;
pcr->aspm_en = ASPM_L1_EN;
- pcr->tx_initial_phase = SET_CLOCK_PHASE(1, 29, 16);
+ pcr->tx_initial_phase = SET_CLOCK_PHASE(27, 29, 11);
pcr->rx_initial_phase = SET_CLOCK_PHASE(24, 6, 5);
pcr->ic_version = rts5260_get_ic_version(pcr);
diff --git a/drivers/misc/cardreader/rts5261.c b/drivers/misc/cardreader/rts5261.c
index bc4967a..78c3b1d 100644
--- a/drivers/misc/cardreader/rts5261.c
+++ b/drivers/misc/cardreader/rts5261.c
@@ -764,7 +764,7 @@ void rts5261_init_params(struct rtsx_pcr *pcr)
pcr->sd30_drive_sel_1v8 = CFG_DRIVER_TYPE_B;
pcr->sd30_drive_sel_3v3 = CFG_DRIVER_TYPE_B;
pcr->aspm_en = ASPM_L1_EN;
- pcr->tx_initial_phase = SET_CLOCK_PHASE(20, 27, 16);
+ pcr->tx_initial_phase = SET_CLOCK_PHASE(27, 27, 11);
pcr->rx_initial_phase = SET_CLOCK_PHASE(24, 6, 5);
pcr->ic_version = rts5261_get_ic_version(pcr);
diff --git a/drivers/mmc/host/rtsx_pci_sdmmc.c b/drivers/mmc/host/rtsx_pci_sdmmc.c
index bd50935..1108797 100644
--- a/drivers/mmc/host/rtsx_pci_sdmmc.c
+++ b/drivers/mmc/host/rtsx_pci_sdmmc.c
@@ -606,19 +606,22 @@ static int sd_change_phase(struct realtek_pci_sdmmc *host,
u8 sample_point, bool rx)
{
struct rtsx_pcr *pcr = host->pcr;
-
+ u16 SD_VP_CTL = 0;
dev_dbg(sdmmc_dev(host), "%s(%s): sample_point = %d\n",
__func__, rx ? "RX" : "TX", sample_point);
rtsx_pci_write_register(pcr, CLK_CTL, CHANGE_CLK, CHANGE_CLK);
- if (rx)
+ if (rx) {
+ SD_VP_CTL = SD_VPRX_CTL;
rtsx_pci_write_register(pcr, SD_VPRX_CTL,
PHASE_SELECT_MASK, sample_point);
- else
+ } else {
+ SD_VP_CTL = SD_VPTX_CTL;
rtsx_pci_write_register(pcr, SD_VPTX_CTL,
PHASE_SELECT_MASK, sample_point);
- rtsx_pci_write_register(pcr, SD_VPCLK0_CTL, PHASE_NOT_RESET, 0);
- rtsx_pci_write_register(pcr, SD_VPCLK0_CTL, PHASE_NOT_RESET,
+ }
+ rtsx_pci_write_register(pcr, SD_VP_CTL, PHASE_NOT_RESET, 0);
+ rtsx_pci_write_register(pcr, SD_VP_CTL, PHASE_NOT_RESET,
PHASE_NOT_RESET);
rtsx_pci_write_register(pcr, CLK_CTL, CHANGE_CLK, 0);
rtsx_pci_write_register(pcr, SD_CFG1, SD_ASYNC_FIFO_NOT_RST, 0);
diff --git a/drivers/mmc/host/sdhci-acpi.c b/drivers/mmc/host/sdhci-acpi.c
index 9651dca..2a2173d 100644
--- a/drivers/mmc/host/sdhci-acpi.c
+++ b/drivers/mmc/host/sdhci-acpi.c
@@ -23,6 +23,7 @@
#include <linux/pm.h>
#include <linux/pm_runtime.h>
#include <linux/delay.h>
+#include <linux/dmi.h>
#include <linux/mmc/host.h>
#include <linux/mmc/pm.h>
@@ -72,9 +73,16 @@ struct sdhci_acpi_host {
const struct sdhci_acpi_slot *slot;
struct platform_device *pdev;
bool use_runtime_pm;
+ bool is_intel;
+ bool reset_signal_volt_on_suspend;
unsigned long private[0] ____cacheline_aligned;
};
+enum {
+ DMI_QUIRK_RESET_SD_SIGNAL_VOLT_ON_SUSP = BIT(0),
+ DMI_QUIRK_SD_NO_WRITE_PROTECT = BIT(1),
+};
+
static inline void *sdhci_acpi_priv(struct sdhci_acpi_host *c)
{
return (void *)c->private;
@@ -391,6 +399,8 @@ static int intel_probe_slot(struct platform_device *pdev, struct acpi_device *ad
host->mmc_host_ops.start_signal_voltage_switch =
intel_start_signal_voltage_switch;
+ c->is_intel = true;
+
return 0;
}
@@ -647,6 +657,36 @@ static const struct acpi_device_id sdhci_acpi_ids[] = {
};
MODULE_DEVICE_TABLE(acpi, sdhci_acpi_ids);
+static const struct dmi_system_id sdhci_acpi_quirks[] = {
+ {
+ /*
+ * The Lenovo Miix 320-10ICR has a bug in the _PS0 method of
+ * the SHC1 ACPI device, this bug causes it to reprogram the
+ * wrong LDO (DLDO3) to 1.8V if 1.8V modes are used and the
+ * card is (runtime) suspended + resumed. DLDO3 is used for
+ * the LCD and setting it to 1.8V causes the LCD to go black.
+ */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo MIIX 320-10ICR"),
+ },
+ .driver_data = (void *)DMI_QUIRK_RESET_SD_SIGNAL_VOLT_ON_SUSP,
+ },
+ {
+ /*
+ * The Acer Aspire Switch 10 (SW5-012) microSD slot always
+ * reports the card being write-protected even though microSD
+ * cards do not have a write-protect switch at all.
+ */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "Aspire SW5-012"),
+ },
+ .driver_data = (void *)DMI_QUIRK_SD_NO_WRITE_PROTECT,
+ },
+ {} /* Terminating entry */
+};
+
static const struct sdhci_acpi_slot *sdhci_acpi_get_slot(struct acpi_device *adev)
{
const struct sdhci_acpi_uid_slot *u;
@@ -663,17 +703,23 @@ static int sdhci_acpi_probe(struct platform_device *pdev)
struct device *dev = &pdev->dev;
const struct sdhci_acpi_slot *slot;
struct acpi_device *device, *child;
+ const struct dmi_system_id *id;
struct sdhci_acpi_host *c;
struct sdhci_host *host;
struct resource *iomem;
resource_size_t len;
size_t priv_size;
+ int quirks = 0;
int err;
device = ACPI_COMPANION(dev);
if (!device)
return -ENODEV;
+ id = dmi_first_match(sdhci_acpi_quirks);
+ if (id)
+ quirks = (long)id->driver_data;
+
slot = sdhci_acpi_get_slot(device);
/* Power on the SDHCI controller and its children */
@@ -759,6 +805,12 @@ static int sdhci_acpi_probe(struct platform_device *pdev)
dev_warn(dev, "failed to setup card detect gpio\n");
c->use_runtime_pm = false;
}
+
+ if (quirks & DMI_QUIRK_RESET_SD_SIGNAL_VOLT_ON_SUSP)
+ c->reset_signal_volt_on_suspend = true;
+
+ if (quirks & DMI_QUIRK_SD_NO_WRITE_PROTECT)
+ host->mmc->caps2 |= MMC_CAP2_NO_WRITE_PROTECT;
}
err = sdhci_setup_host(host);
@@ -823,17 +875,39 @@ static int sdhci_acpi_remove(struct platform_device *pdev)
return 0;
}
+static void __maybe_unused sdhci_acpi_reset_signal_voltage_if_needed(
+ struct device *dev)
+{
+ struct sdhci_acpi_host *c = dev_get_drvdata(dev);
+ struct sdhci_host *host = c->host;
+
+ if (c->is_intel && c->reset_signal_volt_on_suspend &&
+ host->mmc->ios.signal_voltage != MMC_SIGNAL_VOLTAGE_330) {
+ struct intel_host *intel_host = sdhci_acpi_priv(c);
+ unsigned int fn = INTEL_DSM_V33_SWITCH;
+ u32 result = 0;
+
+ intel_dsm(intel_host, dev, fn, &result);
+ }
+}
+
#ifdef CONFIG_PM_SLEEP
static int sdhci_acpi_suspend(struct device *dev)
{
struct sdhci_acpi_host *c = dev_get_drvdata(dev);
struct sdhci_host *host = c->host;
+ int ret;
if (host->tuning_mode != SDHCI_TUNING_MODE_3)
mmc_retune_needed(host->mmc);
- return sdhci_suspend_host(host);
+ ret = sdhci_suspend_host(host);
+ if (ret)
+ return ret;
+
+ sdhci_acpi_reset_signal_voltage_if_needed(dev);
+ return 0;
}
static int sdhci_acpi_resume(struct device *dev)
@@ -853,11 +927,17 @@ static int sdhci_acpi_runtime_suspend(struct device *dev)
{
struct sdhci_acpi_host *c = dev_get_drvdata(dev);
struct sdhci_host *host = c->host;
+ int ret;
if (host->tuning_mode != SDHCI_TUNING_MODE_3)
mmc_retune_needed(host->mmc);
- return sdhci_runtime_suspend_host(host);
+ ret = sdhci_runtime_suspend_host(host);
+ if (ret)
+ return ret;
+
+ sdhci_acpi_reset_signal_voltage_if_needed(dev);
+ return 0;
}
static int sdhci_acpi_runtime_resume(struct device *dev)
diff --git a/drivers/mmc/host/sdhci-cadence.c b/drivers/mmc/host/sdhci-cadence.c
index 5827d37..e573495 100644
--- a/drivers/mmc/host/sdhci-cadence.c
+++ b/drivers/mmc/host/sdhci-cadence.c
@@ -11,6 +11,7 @@
#include <linux/mmc/host.h>
#include <linux/mmc/mmc.h>
#include <linux/of.h>
+#include <linux/of_device.h>
#include "sdhci-pltfm.h"
@@ -235,6 +236,11 @@ static const struct sdhci_ops sdhci_cdns_ops = {
.set_uhs_signaling = sdhci_cdns_set_uhs_signaling,
};
+static const struct sdhci_pltfm_data sdhci_cdns_uniphier_pltfm_data = {
+ .ops = &sdhci_cdns_ops,
+ .quirks2 = SDHCI_QUIRK2_PRESET_VALUE_BROKEN,
+};
+
static const struct sdhci_pltfm_data sdhci_cdns_pltfm_data = {
.ops = &sdhci_cdns_ops,
};
@@ -334,6 +340,7 @@ static void sdhci_cdns_hs400_enhanced_strobe(struct mmc_host *mmc,
static int sdhci_cdns_probe(struct platform_device *pdev)
{
struct sdhci_host *host;
+ const struct sdhci_pltfm_data *data;
struct sdhci_pltfm_host *pltfm_host;
struct sdhci_cdns_priv *priv;
struct clk *clk;
@@ -350,8 +357,12 @@ static int sdhci_cdns_probe(struct platform_device *pdev)
if (ret)
return ret;
+ data = of_device_get_match_data(dev);
+ if (!data)
+ data = &sdhci_cdns_pltfm_data;
+
nr_phy_params = sdhci_cdns_phy_param_count(dev->of_node);
- host = sdhci_pltfm_init(pdev, &sdhci_cdns_pltfm_data,
+ host = sdhci_pltfm_init(pdev, data,
struct_size(priv, phy_params, nr_phy_params));
if (IS_ERR(host)) {
ret = PTR_ERR(host);
@@ -431,7 +442,10 @@ static const struct dev_pm_ops sdhci_cdns_pm_ops = {
};
static const struct of_device_id sdhci_cdns_match[] = {
- { .compatible = "socionext,uniphier-sd4hc" },
+ {
+ .compatible = "socionext,uniphier-sd4hc",
+ .data = &sdhci_cdns_uniphier_pltfm_data,
+ },
{ .compatible = "cdns,sd4hc" },
{ /* sentinel */ }
};
diff --git a/drivers/mmc/host/sdhci-esdhc-imx.c b/drivers/mmc/host/sdhci-esdhc-imx.c
index 382f25b..b2bdf50 100644
--- a/drivers/mmc/host/sdhci-esdhc-imx.c
+++ b/drivers/mmc/host/sdhci-esdhc-imx.c
@@ -1452,8 +1452,7 @@ static int sdhci_esdhc_imx_probe(struct platform_device *pdev)
pdev->id_entry->driver_data;
if (imx_data->socdata->flags & ESDHC_FLAG_PMQOS)
- pm_qos_add_request(&imx_data->pm_qos_req,
- PM_QOS_CPU_DMA_LATENCY, 0);
+ cpu_latency_qos_add_request(&imx_data->pm_qos_req, 0);
imx_data->clk_ipg = devm_clk_get(&pdev->dev, "ipg");
if (IS_ERR(imx_data->clk_ipg)) {
@@ -1572,7 +1571,7 @@ static int sdhci_esdhc_imx_probe(struct platform_device *pdev)
clk_disable_unprepare(imx_data->clk_per);
free_sdhci:
if (imx_data->socdata->flags & ESDHC_FLAG_PMQOS)
- pm_qos_remove_request(&imx_data->pm_qos_req);
+ cpu_latency_qos_remove_request(&imx_data->pm_qos_req);
sdhci_pltfm_free(pdev);
return err;
}
@@ -1595,7 +1594,7 @@ static int sdhci_esdhc_imx_remove(struct platform_device *pdev)
clk_disable_unprepare(imx_data->clk_ahb);
if (imx_data->socdata->flags & ESDHC_FLAG_PMQOS)
- pm_qos_remove_request(&imx_data->pm_qos_req);
+ cpu_latency_qos_remove_request(&imx_data->pm_qos_req);
sdhci_pltfm_free(pdev);
@@ -1667,7 +1666,7 @@ static int sdhci_esdhc_runtime_suspend(struct device *dev)
clk_disable_unprepare(imx_data->clk_ahb);
if (imx_data->socdata->flags & ESDHC_FLAG_PMQOS)
- pm_qos_remove_request(&imx_data->pm_qos_req);
+ cpu_latency_qos_remove_request(&imx_data->pm_qos_req);
return ret;
}
@@ -1680,8 +1679,7 @@ static int sdhci_esdhc_runtime_resume(struct device *dev)
int err;
if (imx_data->socdata->flags & ESDHC_FLAG_PMQOS)
- pm_qos_add_request(&imx_data->pm_qos_req,
- PM_QOS_CPU_DMA_LATENCY, 0);
+ cpu_latency_qos_add_request(&imx_data->pm_qos_req, 0);
err = clk_prepare_enable(imx_data->clk_ahb);
if (err)
@@ -1714,7 +1712,7 @@ static int sdhci_esdhc_runtime_resume(struct device *dev)
clk_disable_unprepare(imx_data->clk_ahb);
remove_pm_qos_request:
if (imx_data->socdata->flags & ESDHC_FLAG_PMQOS)
- pm_qos_remove_request(&imx_data->pm_qos_req);
+ cpu_latency_qos_remove_request(&imx_data->pm_qos_req);
return err;
}
#endif
diff --git a/drivers/mmc/host/sdhci-of-at91.c b/drivers/mmc/host/sdhci-of-at91.c
index ab2bd31..fcef5c0 100644
--- a/drivers/mmc/host/sdhci-of-at91.c
+++ b/drivers/mmc/host/sdhci-of-at91.c
@@ -132,7 +132,8 @@ static void sdhci_at91_reset(struct sdhci_host *host, u8 mask)
sdhci_reset(host, mask);
- if (host->mmc->caps & MMC_CAP_NONREMOVABLE)
+ if ((host->mmc->caps & MMC_CAP_NONREMOVABLE)
+ || mmc_gpio_get_cd(host->mmc) >= 0)
sdhci_at91_set_force_card_detect(host);
if (priv->cal_always_on && (mask & SDHCI_RESET_ALL))
@@ -427,8 +428,11 @@ static int sdhci_at91_probe(struct platform_device *pdev)
* detection procedure using the SDMCC_CD signal is bypassed.
* This bit is reset when a software reset for all command is performed
* so we need to implement our own reset function to set back this bit.
+ *
+ * WA: SAMA5D2 doesn't drive CMD if using CD GPIO line.
*/
- if (host->mmc->caps & MMC_CAP_NONREMOVABLE)
+ if ((host->mmc->caps & MMC_CAP_NONREMOVABLE)
+ || mmc_gpio_get_cd(host->mmc) >= 0)
sdhci_at91_set_force_card_detect(host);
pm_runtime_put_autosuspend(&pdev->dev);
diff --git a/drivers/net/ethernet/intel/e1000e/netdev.c b/drivers/net/ethernet/intel/e1000e/netdev.c
index db4ea58..0f02c7a 100644
--- a/drivers/net/ethernet/intel/e1000e/netdev.c
+++ b/drivers/net/ethernet/intel/e1000e/netdev.c
@@ -3280,10 +3280,10 @@ static void e1000_configure_rx(struct e1000_adapter *adapter)
dev_info(&adapter->pdev->dev,
"Some CPU C-states have been disabled in order to enable jumbo frames\n");
- pm_qos_update_request(&adapter->pm_qos_req, lat);
+ cpu_latency_qos_update_request(&adapter->pm_qos_req, lat);
} else {
- pm_qos_update_request(&adapter->pm_qos_req,
- PM_QOS_DEFAULT_VALUE);
+ cpu_latency_qos_update_request(&adapter->pm_qos_req,
+ PM_QOS_DEFAULT_VALUE);
}
/* Enable Receives */
@@ -4636,8 +4636,7 @@ int e1000e_open(struct net_device *netdev)
e1000_update_mng_vlan(adapter);
/* DMA latency requirement to workaround jumbo issue */
- pm_qos_add_request(&adapter->pm_qos_req, PM_QOS_CPU_DMA_LATENCY,
- PM_QOS_DEFAULT_VALUE);
+ cpu_latency_qos_add_request(&adapter->pm_qos_req, PM_QOS_DEFAULT_VALUE);
/* before we allocate an interrupt, we must be ready to handle it.
* Setting DEBUG_SHIRQ in the kernel makes it fire an interrupt
@@ -4679,7 +4678,7 @@ int e1000e_open(struct net_device *netdev)
return 0;
err_req_irq:
- pm_qos_remove_request(&adapter->pm_qos_req);
+ cpu_latency_qos_remove_request(&adapter->pm_qos_req);
e1000e_release_hw_control(adapter);
e1000_power_down_phy(adapter);
e1000e_free_rx_resources(adapter->rx_ring);
@@ -4743,7 +4742,7 @@ int e1000e_close(struct net_device *netdev)
!test_bit(__E1000_TESTING, &adapter->state))
e1000e_release_hw_control(adapter);
- pm_qos_remove_request(&adapter->pm_qos_req);
+ cpu_latency_qos_remove_request(&adapter->pm_qos_req);
pm_runtime_put_sync(&pdev->dev);
diff --git a/drivers/net/wireless/ath/ath10k/core.c b/drivers/net/wireless/ath/ath10k/core.c
index 5ec16ce..a202a4e 100644
--- a/drivers/net/wireless/ath/ath10k/core.c
+++ b/drivers/net/wireless/ath/ath10k/core.c
@@ -1052,11 +1052,11 @@ static int ath10k_download_fw(struct ath10k *ar)
}
memset(&latency_qos, 0, sizeof(latency_qos));
- pm_qos_add_request(&latency_qos, PM_QOS_CPU_DMA_LATENCY, 0);
+ cpu_latency_qos_add_request(&latency_qos, 0);
ret = ath10k_bmi_fast_download(ar, address, data, data_len);
- pm_qos_remove_request(&latency_qos);
+ cpu_latency_qos_remove_request(&latency_qos);
return ret;
}
diff --git a/drivers/net/wireless/intel/ipw2x00/ipw2100.c b/drivers/net/wireless/intel/ipw2x00/ipw2100.c
index 536cd72..5dfcce7 100644
--- a/drivers/net/wireless/intel/ipw2x00/ipw2100.c
+++ b/drivers/net/wireless/intel/ipw2x00/ipw2100.c
@@ -1730,7 +1730,7 @@ static int ipw2100_up(struct ipw2100_priv *priv, int deferred)
/* the ipw2100 hardware really doesn't want power management delays
* longer than 175usec
*/
- pm_qos_update_request(&ipw2100_pm_qos_req, 175);
+ cpu_latency_qos_update_request(&ipw2100_pm_qos_req, 175);
/* If the interrupt is enabled, turn it off... */
spin_lock_irqsave(&priv->low_lock, flags);
@@ -1875,7 +1875,8 @@ static void ipw2100_down(struct ipw2100_priv *priv)
ipw2100_disable_interrupts(priv);
spin_unlock_irqrestore(&priv->low_lock, flags);
- pm_qos_update_request(&ipw2100_pm_qos_req, PM_QOS_DEFAULT_VALUE);
+ cpu_latency_qos_update_request(&ipw2100_pm_qos_req,
+ PM_QOS_DEFAULT_VALUE);
/* We have to signal any supplicant if we are disassociating */
if (associated)
@@ -6566,8 +6567,7 @@ static int __init ipw2100_init(void)
printk(KERN_INFO DRV_NAME ": %s, %s\n", DRV_DESCRIPTION, DRV_VERSION);
printk(KERN_INFO DRV_NAME ": %s\n", DRV_COPYRIGHT);
- pm_qos_add_request(&ipw2100_pm_qos_req, PM_QOS_CPU_DMA_LATENCY,
- PM_QOS_DEFAULT_VALUE);
+ cpu_latency_qos_add_request(&ipw2100_pm_qos_req, PM_QOS_DEFAULT_VALUE);
ret = pci_register_driver(&ipw2100_pci_driver);
if (ret)
@@ -6594,7 +6594,7 @@ static void __exit ipw2100_exit(void)
&driver_attr_debug_level);
#endif
pci_unregister_driver(&ipw2100_pci_driver);
- pm_qos_remove_request(&ipw2100_pm_qos_req);
+ cpu_latency_qos_remove_request(&ipw2100_pm_qos_req);
}
module_init(ipw2100_init);
diff --git a/drivers/nvme/host/rdma.c b/drivers/nvme/host/rdma.c
index 3e85c5c..0fe08c4 100644
--- a/drivers/nvme/host/rdma.c
+++ b/drivers/nvme/host/rdma.c
@@ -850,9 +850,11 @@ static int nvme_rdma_configure_admin_queue(struct nvme_rdma_ctrl *ctrl,
if (new)
blk_mq_free_tag_set(ctrl->ctrl.admin_tagset);
out_free_async_qe:
- nvme_rdma_free_qe(ctrl->device->dev, &ctrl->async_event_sqe,
- sizeof(struct nvme_command), DMA_TO_DEVICE);
- ctrl->async_event_sqe.data = NULL;
+ if (ctrl->async_event_sqe.data) {
+ nvme_rdma_free_qe(ctrl->device->dev, &ctrl->async_event_sqe,
+ sizeof(struct nvme_command), DMA_TO_DEVICE);
+ ctrl->async_event_sqe.data = NULL;
+ }
out_free_queue:
nvme_rdma_free_queue(&ctrl->queues[0]);
return error;
diff --git a/drivers/nvme/target/tcp.c b/drivers/nvme/target/tcp.c
index af674fc0..5bb5342 100644
--- a/drivers/nvme/target/tcp.c
+++ b/drivers/nvme/target/tcp.c
@@ -515,7 +515,7 @@ static int nvmet_try_send_data_pdu(struct nvmet_tcp_cmd *cmd)
return 1;
}
-static int nvmet_try_send_data(struct nvmet_tcp_cmd *cmd)
+static int nvmet_try_send_data(struct nvmet_tcp_cmd *cmd, bool last_in_batch)
{
struct nvmet_tcp_queue *queue = cmd->queue;
int ret;
@@ -523,9 +523,15 @@ static int nvmet_try_send_data(struct nvmet_tcp_cmd *cmd)
while (cmd->cur_sg) {
struct page *page = sg_page(cmd->cur_sg);
u32 left = cmd->cur_sg->length - cmd->offset;
+ int flags = MSG_DONTWAIT;
+
+ if ((!last_in_batch && cmd->queue->send_list_len) ||
+ cmd->wbytes_done + left < cmd->req.transfer_len ||
+ queue->data_digest || !queue->nvme_sq.sqhd_disabled)
+ flags |= MSG_MORE;
ret = kernel_sendpage(cmd->queue->sock, page, cmd->offset,
- left, MSG_DONTWAIT | MSG_MORE);
+ left, flags);
if (ret <= 0)
return ret;
@@ -660,7 +666,7 @@ static int nvmet_tcp_try_send_one(struct nvmet_tcp_queue *queue,
}
if (cmd->state == NVMET_TCP_SEND_DATA) {
- ret = nvmet_try_send_data(cmd);
+ ret = nvmet_try_send_data(cmd, last_in_batch);
if (ret <= 0)
goto done_send;
}
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index 34c8b6c..8e50388 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -327,6 +327,7 @@
config RTC_DRV_MAX8907
tristate "Maxim MAX8907"
depends on MFD_MAX8907 || COMPILE_TEST
+ select REGMAP_IRQ
help
If you say yes here you will get support for the
RTC of Maxim MAX8907 PMIC.
diff --git a/drivers/slimbus/qcom-ngd-ctrl.c b/drivers/slimbus/qcom-ngd-ctrl.c
index e3f5ebc..fc2575f 100644
--- a/drivers/slimbus/qcom-ngd-ctrl.c
+++ b/drivers/slimbus/qcom-ngd-ctrl.c
@@ -1320,6 +1320,9 @@ static const struct of_device_id qcom_slim_ngd_dt_match[] = {
{
.compatible = "qcom,slim-ngd-v1.5.0",
.data = &ngd_v1_5_offset_info,
+ },{
+ .compatible = "qcom,slim-ngd-v2.1.0",
+ .data = &ngd_v1_5_offset_info,
},
{}
};
diff --git a/drivers/spi/spi-fsl-qspi.c b/drivers/spi/spi-fsl-qspi.c
index e8a499c..02e5cba 100644
--- a/drivers/spi/spi-fsl-qspi.c
+++ b/drivers/spi/spi-fsl-qspi.c
@@ -484,7 +484,7 @@ static int fsl_qspi_clk_prep_enable(struct fsl_qspi *q)
}
if (needs_wakeup_wait_mode(q))
- pm_qos_add_request(&q->pm_qos_req, PM_QOS_CPU_DMA_LATENCY, 0);
+ cpu_latency_qos_add_request(&q->pm_qos_req, 0);
return 0;
}
@@ -492,7 +492,7 @@ static int fsl_qspi_clk_prep_enable(struct fsl_qspi *q)
static void fsl_qspi_clk_disable_unprep(struct fsl_qspi *q)
{
if (needs_wakeup_wait_mode(q))
- pm_qos_remove_request(&q->pm_qos_req);
+ cpu_latency_qos_remove_request(&q->pm_qos_req);
clk_disable_unprepare(q->clk);
clk_disable_unprepare(q->clk_en);
diff --git a/drivers/staging/greybus/tools/loopback_test.c b/drivers/staging/greybus/tools/loopback_test.c
index ba6f905..69c6dce 100644
--- a/drivers/staging/greybus/tools/loopback_test.c
+++ b/drivers/staging/greybus/tools/loopback_test.c
@@ -19,6 +19,7 @@
#include <signal.h>
#define MAX_NUM_DEVICES 10
+#define MAX_SYSFS_PREFIX 0x80
#define MAX_SYSFS_PATH 0x200
#define CSV_MAX_LINE 0x1000
#define SYSFS_MAX_INT 0x20
@@ -67,7 +68,7 @@ struct loopback_results {
};
struct loopback_device {
- char name[MAX_SYSFS_PATH];
+ char name[MAX_STR_LEN];
char sysfs_entry[MAX_SYSFS_PATH];
char debugfs_entry[MAX_SYSFS_PATH];
struct loopback_results results;
@@ -93,8 +94,8 @@ struct loopback_test {
int stop_all;
int poll_count;
char test_name[MAX_STR_LEN];
- char sysfs_prefix[MAX_SYSFS_PATH];
- char debugfs_prefix[MAX_SYSFS_PATH];
+ char sysfs_prefix[MAX_SYSFS_PREFIX];
+ char debugfs_prefix[MAX_SYSFS_PREFIX];
struct timespec poll_timeout;
struct loopback_device devices[MAX_NUM_DEVICES];
struct loopback_results aggregate_results;
@@ -637,7 +638,7 @@ int find_loopback_devices(struct loopback_test *t)
static int open_poll_files(struct loopback_test *t)
{
struct loopback_device *dev;
- char buf[MAX_STR_LEN];
+ char buf[MAX_SYSFS_PATH + MAX_STR_LEN];
char dummy;
int fds_idx = 0;
int i;
@@ -655,7 +656,7 @@ static int open_poll_files(struct loopback_test *t)
goto err;
}
read(t->fds[fds_idx].fd, &dummy, 1);
- t->fds[fds_idx].events = EPOLLERR|EPOLLPRI;
+ t->fds[fds_idx].events = POLLERR | POLLPRI;
t->fds[fds_idx].revents = 0;
fds_idx++;
}
@@ -748,7 +749,7 @@ static int wait_for_complete(struct loopback_test *t)
}
for (i = 0; i < t->poll_count; i++) {
- if (t->fds[i].revents & EPOLLPRI) {
+ if (t->fds[i].revents & POLLPRI) {
/* Dummy read to clear the event */
read(t->fds[i].fd, &dummy, 1);
number_of_events++;
@@ -907,10 +908,10 @@ int main(int argc, char *argv[])
t.iteration_max = atoi(optarg);
break;
case 'S':
- snprintf(t.sysfs_prefix, MAX_SYSFS_PATH, "%s", optarg);
+ snprintf(t.sysfs_prefix, MAX_SYSFS_PREFIX, "%s", optarg);
break;
case 'D':
- snprintf(t.debugfs_prefix, MAX_SYSFS_PATH, "%s", optarg);
+ snprintf(t.debugfs_prefix, MAX_SYSFS_PREFIX, "%s", optarg);
break;
case 'm':
t.mask = atol(optarg);
@@ -961,10 +962,10 @@ int main(int argc, char *argv[])
}
if (!strcmp(t.sysfs_prefix, ""))
- snprintf(t.sysfs_prefix, MAX_SYSFS_PATH, "%s", sysfs_prefix);
+ snprintf(t.sysfs_prefix, MAX_SYSFS_PREFIX, "%s", sysfs_prefix);
if (!strcmp(t.debugfs_prefix, ""))
- snprintf(t.debugfs_prefix, MAX_SYSFS_PATH, "%s", debugfs_prefix);
+ snprintf(t.debugfs_prefix, MAX_SYSFS_PREFIX, "%s", debugfs_prefix);
ret = find_loopback_devices(&t);
if (ret)
diff --git a/drivers/staging/rtl8188eu/os_dep/usb_intf.c b/drivers/staging/rtl8188eu/os_dep/usb_intf.c
index b5d42f4..845c881 100644
--- a/drivers/staging/rtl8188eu/os_dep/usb_intf.c
+++ b/drivers/staging/rtl8188eu/os_dep/usb_intf.c
@@ -38,6 +38,7 @@ static const struct usb_device_id rtw_usb_id_tbl[] = {
{USB_DEVICE(0x2001, 0x331B)}, /* D-Link DWA-121 rev B1 */
{USB_DEVICE(0x2357, 0x010c)}, /* TP-Link TL-WN722N v2 */
{USB_DEVICE(0x2357, 0x0111)}, /* TP-Link TL-WN727N v5.21 */
+ {USB_DEVICE(0x2C4E, 0x0102)}, /* MERCUSYS MW150US v2 */
{USB_DEVICE(0x0df6, 0x0076)}, /* Sitecom N150 v2 */
{USB_DEVICE(USB_VENDER_ID_REALTEK, 0xffef)}, /* Rosewill RNX-N150NUB */
{} /* Terminating entry */
diff --git a/drivers/staging/speakup/main.c b/drivers/staging/speakup/main.c
index 488f253..81ecfd1 100644
--- a/drivers/staging/speakup/main.c
+++ b/drivers/staging/speakup/main.c
@@ -561,7 +561,7 @@ static u_long get_word(struct vc_data *vc)
return 0;
} else if (tmpx < vc->vc_cols - 2 &&
(ch == SPACE || ch == 0 || (ch < 0x100 && IS_WDLM(ch))) &&
- get_char(vc, (u_short *)&tmp_pos + 1, &temp) > SPACE) {
+ get_char(vc, (u_short *)tmp_pos + 1, &temp) > SPACE) {
tmp_pos += 2;
tmpx++;
} else {
diff --git a/drivers/staging/wfx/hif_tx.c b/drivers/staging/wfx/hif_tx.c
index 2428363..77bca43 100644
--- a/drivers/staging/wfx/hif_tx.c
+++ b/drivers/staging/wfx/hif_tx.c
@@ -140,6 +140,7 @@ int hif_shutdown(struct wfx_dev *wdev)
else
control_reg_write(wdev, 0);
mutex_unlock(&wdev->hif_cmd.lock);
+ mutex_unlock(&wdev->hif_cmd.key_renew_lock);
kfree(hif);
return ret;
}
@@ -289,7 +290,7 @@ int hif_stop_scan(struct wfx_vif *wvif)
}
int hif_join(struct wfx_vif *wvif, const struct ieee80211_bss_conf *conf,
- const struct ieee80211_channel *channel, const u8 *ssidie)
+ struct ieee80211_channel *channel, const u8 *ssid, int ssidlen)
{
int ret;
struct hif_msg *hif;
@@ -307,9 +308,9 @@ int hif_join(struct wfx_vif *wvif, const struct ieee80211_bss_conf *conf,
body->basic_rate_set =
cpu_to_le32(wfx_rate_mask_to_hw(wvif->wdev, conf->basic_rates));
memcpy(body->bssid, conf->bssid, sizeof(body->bssid));
- if (!conf->ibss_joined && ssidie) {
- body->ssid_length = cpu_to_le32(ssidie[1]);
- memcpy(body->ssid, &ssidie[2], ssidie[1]);
+ if (!conf->ibss_joined && ssid) {
+ body->ssid_length = cpu_to_le32(ssidlen);
+ memcpy(body->ssid, ssid, ssidlen);
}
wfx_fill_header(hif, wvif->id, HIF_REQ_ID_JOIN, sizeof(*body));
ret = wfx_cmd_send(wvif->wdev, hif, NULL, 0, false);
@@ -427,9 +428,9 @@ int hif_start(struct wfx_vif *wvif, const struct ieee80211_bss_conf *conf,
struct hif_msg *hif;
struct hif_req_start *body = wfx_alloc_hif(sizeof(*body), &hif);
- body->dtim_period = conf->dtim_period,
- body->short_preamble = conf->use_short_preamble,
- body->channel_number = cpu_to_le16(channel->hw_value),
+ body->dtim_period = conf->dtim_period;
+ body->short_preamble = conf->use_short_preamble;
+ body->channel_number = cpu_to_le16(channel->hw_value);
body->beacon_interval = cpu_to_le32(conf->beacon_int);
body->basic_rate_set =
cpu_to_le32(wfx_rate_mask_to_hw(wvif->wdev, conf->basic_rates));
diff --git a/drivers/staging/wfx/hif_tx.h b/drivers/staging/wfx/hif_tx.h
index 20977e4..f8520a1 100644
--- a/drivers/staging/wfx/hif_tx.h
+++ b/drivers/staging/wfx/hif_tx.h
@@ -46,7 +46,7 @@ int hif_scan(struct wfx_vif *wvif, struct cfg80211_scan_request *req80211,
int chan_start, int chan_num);
int hif_stop_scan(struct wfx_vif *wvif);
int hif_join(struct wfx_vif *wvif, const struct ieee80211_bss_conf *conf,
- const struct ieee80211_channel *channel, const u8 *ssidie);
+ struct ieee80211_channel *channel, const u8 *ssid, int ssidlen);
int hif_set_pm(struct wfx_vif *wvif, bool ps, int dynamic_ps_timeout);
int hif_set_bss_params(struct wfx_vif *wvif,
const struct hif_req_set_bss_params *arg);
diff --git a/drivers/staging/wfx/hif_tx_mib.h b/drivers/staging/wfx/hif_tx_mib.h
index bf3769c..26b1406 100644
--- a/drivers/staging/wfx/hif_tx_mib.h
+++ b/drivers/staging/wfx/hif_tx_mib.h
@@ -191,10 +191,10 @@ static inline int hif_set_block_ack_policy(struct wfx_vif *wvif,
}
static inline int hif_set_association_mode(struct wfx_vif *wvif,
- struct ieee80211_bss_conf *info,
- struct ieee80211_sta_ht_cap *ht_cap)
+ struct ieee80211_bss_conf *info)
{
int basic_rates = wfx_rate_mask_to_hw(wvif->wdev, info->basic_rates);
+ struct ieee80211_sta *sta = NULL;
struct hif_mib_set_association_mode val = {
.preambtype_use = 1,
.mode = 1,
@@ -204,12 +204,17 @@ static inline int hif_set_association_mode(struct wfx_vif *wvif,
.basic_rate_set = cpu_to_le32(basic_rates)
};
+ rcu_read_lock(); // protect sta
+ if (info->bssid && !info->ibss_joined)
+ sta = ieee80211_find_sta(wvif->vif, info->bssid);
+
// FIXME: it is strange to not retrieve all information from bss_info
- if (ht_cap && ht_cap->ht_supported) {
- val.mpdu_start_spacing = ht_cap->ampdu_density;
+ if (sta && sta->ht_cap.ht_supported) {
+ val.mpdu_start_spacing = sta->ht_cap.ampdu_density;
if (!(info->ht_operation_mode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT))
- val.greenfield = !!(ht_cap->cap & IEEE80211_HT_CAP_GRN_FLD);
+ val.greenfield = !!(sta->ht_cap.cap & IEEE80211_HT_CAP_GRN_FLD);
}
+ rcu_read_unlock();
return hif_write_mib(wvif->wdev, wvif->id,
HIF_MIB_ID_SET_ASSOCIATION_MODE, &val, sizeof(val));
diff --git a/drivers/staging/wfx/sta.c b/drivers/staging/wfx/sta.c
index 03d0f22..af4f4bb 100644
--- a/drivers/staging/wfx/sta.c
+++ b/drivers/staging/wfx/sta.c
@@ -491,9 +491,11 @@ static void wfx_set_mfp(struct wfx_vif *wvif,
static void wfx_do_join(struct wfx_vif *wvif)
{
int ret;
- const u8 *ssidie;
struct ieee80211_bss_conf *conf = &wvif->vif->bss_conf;
struct cfg80211_bss *bss = NULL;
+ u8 ssid[IEEE80211_MAX_SSID_LEN];
+ const u8 *ssidie = NULL;
+ int ssidlen = 0;
wfx_tx_lock_flush(wvif->wdev);
@@ -514,11 +516,14 @@ static void wfx_do_join(struct wfx_vif *wvif)
if (!wvif->beacon_int)
wvif->beacon_int = 1;
- rcu_read_lock();
+ rcu_read_lock(); // protect ssidie
if (!conf->ibss_joined)
ssidie = ieee80211_bss_get_ie(bss, WLAN_EID_SSID);
- else
- ssidie = NULL;
+ if (ssidie) {
+ ssidlen = ssidie[1];
+ memcpy(ssid, &ssidie[2], ssidie[1]);
+ }
+ rcu_read_unlock();
wfx_tx_flush(wvif->wdev);
@@ -527,10 +532,8 @@ static void wfx_do_join(struct wfx_vif *wvif)
wfx_set_mfp(wvif, bss);
- /* Perform actual join */
wvif->wdev->tx_burst_idx = -1;
- ret = hif_join(wvif, conf, wvif->channel, ssidie);
- rcu_read_unlock();
+ ret = hif_join(wvif, conf, wvif->channel, ssid, ssidlen);
if (ret) {
ieee80211_connection_loss(wvif->vif);
wvif->join_complete_status = -1;
@@ -605,7 +608,9 @@ int wfx_sta_remove(struct ieee80211_hw *hw, struct ieee80211_vif *vif,
int i;
for (i = 0; i < ARRAY_SIZE(sta_priv->buffered); i++)
- WARN(sta_priv->buffered[i], "release station while Tx is in progress");
+ if (sta_priv->buffered[i])
+ dev_warn(wvif->wdev->dev, "release station while %d pending frame on queue %d",
+ sta_priv->buffered[i], i);
// FIXME: see note in wfx_sta_add()
if (vif->type == NL80211_IFTYPE_STATION)
return 0;
@@ -689,6 +694,7 @@ static void wfx_join_finalize(struct wfx_vif *wvif,
wfx_rate_mask_to_hw(wvif->wdev, sta->supp_rates[wvif->channel->band]);
else
wvif->bss_params.operational_rate_set = -1;
+ rcu_read_unlock();
if (sta &&
info->ht_operation_mode & IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT)
hif_dual_cts_protection(wvif, true);
@@ -701,8 +707,7 @@ static void wfx_join_finalize(struct wfx_vif *wvif,
wvif->bss_params.beacon_lost_count = 20;
wvif->bss_params.aid = info->aid;
- hif_set_association_mode(wvif, info, sta ? &sta->ht_cap : NULL);
- rcu_read_unlock();
+ hif_set_association_mode(wvif, info);
if (!info->ibss_joined) {
hif_keep_alive_period(wvif, 30 /* sec */);
diff --git a/drivers/thunderbolt/switch.c b/drivers/thunderbolt/switch.c
index 7d6ecc3..a2ce990 100644
--- a/drivers/thunderbolt/switch.c
+++ b/drivers/thunderbolt/switch.c
@@ -954,7 +954,7 @@ static bool tb_port_is_width_supported(struct tb_port *port, int width)
ret = tb_port_read(port, &phy, TB_CFG_PORT,
port->cap_phy + LANE_ADP_CS_0, 1);
if (ret)
- return ret;
+ return false;
widths = (phy & LANE_ADP_CS_0_SUPPORTED_WIDTH_MASK) >>
LANE_ADP_CS_0_SUPPORTED_WIDTH_SHIFT;
diff --git a/drivers/tty/serial/8250/8250_omap.c b/drivers/tty/serial/8250/8250_omap.c
index 6f343ca..76fe72b 100644
--- a/drivers/tty/serial/8250/8250_omap.c
+++ b/drivers/tty/serial/8250/8250_omap.c
@@ -569,7 +569,7 @@ static void omap8250_uart_qos_work(struct work_struct *work)
struct omap8250_priv *priv;
priv = container_of(work, struct omap8250_priv, qos_work);
- pm_qos_update_request(&priv->pm_qos_request, priv->latency);
+ cpu_latency_qos_update_request(&priv->pm_qos_request, priv->latency);
}
#ifdef CONFIG_SERIAL_8250_DMA
@@ -1222,10 +1222,9 @@ static int omap8250_probe(struct platform_device *pdev)
DEFAULT_CLK_SPEED);
}
- priv->latency = PM_QOS_CPU_DMA_LAT_DEFAULT_VALUE;
- priv->calc_latency = PM_QOS_CPU_DMA_LAT_DEFAULT_VALUE;
- pm_qos_add_request(&priv->pm_qos_request, PM_QOS_CPU_DMA_LATENCY,
- priv->latency);
+ priv->latency = PM_QOS_CPU_LATENCY_DEFAULT_VALUE;
+ priv->calc_latency = PM_QOS_CPU_LATENCY_DEFAULT_VALUE;
+ cpu_latency_qos_add_request(&priv->pm_qos_request, priv->latency);
INIT_WORK(&priv->qos_work, omap8250_uart_qos_work);
spin_lock_init(&priv->rx_dma_lock);
@@ -1295,7 +1294,7 @@ static int omap8250_remove(struct platform_device *pdev)
pm_runtime_put_sync(&pdev->dev);
pm_runtime_disable(&pdev->dev);
serial8250_unregister_port(priv->line);
- pm_qos_remove_request(&priv->pm_qos_request);
+ cpu_latency_qos_remove_request(&priv->pm_qos_request);
device_init_wakeup(&pdev->dev, false);
return 0;
}
@@ -1445,7 +1444,7 @@ static int omap8250_runtime_suspend(struct device *dev)
if (up->dma && up->dma->rxchan)
omap_8250_rx_dma_flush(up);
- priv->latency = PM_QOS_CPU_DMA_LAT_DEFAULT_VALUE;
+ priv->latency = PM_QOS_CPU_LATENCY_DEFAULT_VALUE;
schedule_work(&priv->qos_work);
return 0;
diff --git a/drivers/tty/serial/omap-serial.c b/drivers/tty/serial/omap-serial.c
index 48017ce..e0b720a 100644
--- a/drivers/tty/serial/omap-serial.c
+++ b/drivers/tty/serial/omap-serial.c
@@ -831,7 +831,7 @@ static void serial_omap_uart_qos_work(struct work_struct *work)
struct uart_omap_port *up = container_of(work, struct uart_omap_port,
qos_work);
- pm_qos_update_request(&up->pm_qos_request, up->latency);
+ cpu_latency_qos_update_request(&up->pm_qos_request, up->latency);
}
static void
@@ -1722,10 +1722,9 @@ static int serial_omap_probe(struct platform_device *pdev)
DEFAULT_CLK_SPEED);
}
- up->latency = PM_QOS_CPU_DMA_LAT_DEFAULT_VALUE;
- up->calc_latency = PM_QOS_CPU_DMA_LAT_DEFAULT_VALUE;
- pm_qos_add_request(&up->pm_qos_request,
- PM_QOS_CPU_DMA_LATENCY, up->latency);
+ up->latency = PM_QOS_CPU_LATENCY_DEFAULT_VALUE;
+ up->calc_latency = PM_QOS_CPU_LATENCY_DEFAULT_VALUE;
+ cpu_latency_qos_add_request(&up->pm_qos_request, up->latency);
INIT_WORK(&up->qos_work, serial_omap_uart_qos_work);
platform_set_drvdata(pdev, up);
@@ -1759,7 +1758,7 @@ static int serial_omap_probe(struct platform_device *pdev)
pm_runtime_dont_use_autosuspend(&pdev->dev);
pm_runtime_put_sync(&pdev->dev);
pm_runtime_disable(&pdev->dev);
- pm_qos_remove_request(&up->pm_qos_request);
+ cpu_latency_qos_remove_request(&up->pm_qos_request);
device_init_wakeup(up->dev, false);
err_rs485:
err_port_line:
@@ -1777,7 +1776,7 @@ static int serial_omap_remove(struct platform_device *dev)
pm_runtime_dont_use_autosuspend(up->dev);
pm_runtime_put_sync(up->dev);
pm_runtime_disable(up->dev);
- pm_qos_remove_request(&up->pm_qos_request);
+ cpu_latency_qos_remove_request(&up->pm_qos_request);
device_init_wakeup(&dev->dev, false);
return 0;
@@ -1869,7 +1868,7 @@ static int serial_omap_runtime_suspend(struct device *dev)
serial_omap_enable_wakeup(up, true);
- up->latency = PM_QOS_CPU_DMA_LAT_DEFAULT_VALUE;
+ up->latency = PM_QOS_CPU_LATENCY_DEFAULT_VALUE;
schedule_work(&up->qos_work);
return 0;
diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
index a1453fe..5a6f36b 100644
--- a/drivers/tty/tty_io.c
+++ b/drivers/tty/tty_io.c
@@ -1589,9 +1589,7 @@ void tty_kclose(struct tty_struct *tty)
tty_debug_hangup(tty, "freeing structure\n");
/*
* The release_tty function takes care of the details of clearing
- * the slots and preserving the termios structure. The tty_unlock_pair
- * should be safe as we keep a kref while the tty is locked (so the
- * unlock never unlocks a freed tty).
+ * the slots and preserving the termios structure.
*/
mutex_lock(&tty_mutex);
tty_port_set_kopened(tty->port, 0);
@@ -1621,9 +1619,7 @@ void tty_release_struct(struct tty_struct *tty, int idx)
tty_debug_hangup(tty, "freeing structure\n");
/*
* The release_tty function takes care of the details of clearing
- * the slots and preserving the termios structure. The tty_unlock_pair
- * should be safe as we keep a kref while the tty is locked (so the
- * unlock never unlocks a freed tty).
+ * the slots and preserving the termios structure.
*/
mutex_lock(&tty_mutex);
release_tty(tty, idx);
@@ -2734,9 +2730,11 @@ static int compat_tty_tiocgserial(struct tty_struct *tty,
struct serial_struct32 v32;
struct serial_struct v;
int err;
- memset(&v, 0, sizeof(struct serial_struct));
- if (!tty->ops->set_serial)
+ memset(&v, 0, sizeof(v));
+ memset(&v32, 0, sizeof(v32));
+
+ if (!tty->ops->get_serial)
return -ENOTTY;
err = tty->ops->get_serial(tty, &v);
if (!err) {
diff --git a/drivers/usb/chipidea/ci_hdrc_imx.c b/drivers/usb/chipidea/ci_hdrc_imx.c
index d8e7eb2..a479af3 100644
--- a/drivers/usb/chipidea/ci_hdrc_imx.c
+++ b/drivers/usb/chipidea/ci_hdrc_imx.c
@@ -393,8 +393,7 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev)
}
if (pdata.flags & CI_HDRC_PMQOS)
- pm_qos_add_request(&data->pm_qos_req,
- PM_QOS_CPU_DMA_LATENCY, 0);
+ cpu_latency_qos_add_request(&data->pm_qos_req, 0);
ret = imx_get_clks(dev);
if (ret)
@@ -478,7 +477,7 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev)
/* don't overwrite original ret (cf. EPROBE_DEFER) */
regulator_disable(data->hsic_pad_regulator);
if (pdata.flags & CI_HDRC_PMQOS)
- pm_qos_remove_request(&data->pm_qos_req);
+ cpu_latency_qos_remove_request(&data->pm_qos_req);
data->ci_pdev = NULL;
return ret;
}
@@ -499,7 +498,7 @@ static int ci_hdrc_imx_remove(struct platform_device *pdev)
if (data->ci_pdev) {
imx_disable_unprepare_clks(&pdev->dev);
if (data->plat_data->flags & CI_HDRC_PMQOS)
- pm_qos_remove_request(&data->pm_qos_req);
+ cpu_latency_qos_remove_request(&data->pm_qos_req);
if (data->hsic_pad_regulator)
regulator_disable(data->hsic_pad_regulator);
}
@@ -527,7 +526,7 @@ static int __maybe_unused imx_controller_suspend(struct device *dev)
imx_disable_unprepare_clks(dev);
if (data->plat_data->flags & CI_HDRC_PMQOS)
- pm_qos_remove_request(&data->pm_qos_req);
+ cpu_latency_qos_remove_request(&data->pm_qos_req);
data->in_lpm = true;
@@ -547,8 +546,7 @@ static int __maybe_unused imx_controller_resume(struct device *dev)
}
if (data->plat_data->flags & CI_HDRC_PMQOS)
- pm_qos_add_request(&data->pm_qos_req,
- PM_QOS_CPU_DMA_LATENCY, 0);
+ cpu_latency_qos_add_request(&data->pm_qos_req, 0);
ret = imx_prepare_enable_clks(dev);
if (ret)
diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c
index ffaf46f..4c4ac30 100644
--- a/drivers/usb/chipidea/udc.c
+++ b/drivers/usb/chipidea/udc.c
@@ -1530,18 +1530,19 @@ static const struct usb_ep_ops usb_ep_ops = {
static void ci_hdrc_gadget_connect(struct usb_gadget *_gadget, int is_active)
{
struct ci_hdrc *ci = container_of(_gadget, struct ci_hdrc, gadget);
- unsigned long flags;
if (is_active) {
pm_runtime_get_sync(&_gadget->dev);
hw_device_reset(ci);
- spin_lock_irqsave(&ci->lock, flags);
+ spin_lock_irq(&ci->lock);
if (ci->driver) {
hw_device_state(ci, ci->ep0out->qh.dma);
usb_gadget_set_state(_gadget, USB_STATE_POWERED);
+ spin_unlock_irq(&ci->lock);
usb_udc_vbus_handler(_gadget, true);
+ } else {
+ spin_unlock_irq(&ci->lock);
}
- spin_unlock_irqrestore(&ci->lock, flags);
} else {
usb_udc_vbus_handler(_gadget, false);
if (ci->driver)
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index 62f4fb9..47f09a6 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -896,10 +896,10 @@ static int get_serial_info(struct tty_struct *tty, struct serial_struct *ss)
ss->xmit_fifo_size = acm->writesize;
ss->baud_base = le32_to_cpu(acm->line.dwDTERate);
- ss->close_delay = acm->port.close_delay / 10;
+ ss->close_delay = jiffies_to_msecs(acm->port.close_delay) / 10;
ss->closing_wait = acm->port.closing_wait == ASYNC_CLOSING_WAIT_NONE ?
ASYNC_CLOSING_WAIT_NONE :
- acm->port.closing_wait / 10;
+ jiffies_to_msecs(acm->port.closing_wait) / 10;
return 0;
}
@@ -907,24 +907,32 @@ static int set_serial_info(struct tty_struct *tty, struct serial_struct *ss)
{
struct acm *acm = tty->driver_data;
unsigned int closing_wait, close_delay;
+ unsigned int old_closing_wait, old_close_delay;
int retval = 0;
- close_delay = ss->close_delay * 10;
+ close_delay = msecs_to_jiffies(ss->close_delay * 10);
closing_wait = ss->closing_wait == ASYNC_CLOSING_WAIT_NONE ?
- ASYNC_CLOSING_WAIT_NONE : ss->closing_wait * 10;
+ ASYNC_CLOSING_WAIT_NONE :
+ msecs_to_jiffies(ss->closing_wait * 10);
+
+ /* we must redo the rounding here, so that the values match */
+ old_close_delay = jiffies_to_msecs(acm->port.close_delay) / 10;
+ old_closing_wait = acm->port.closing_wait == ASYNC_CLOSING_WAIT_NONE ?
+ ASYNC_CLOSING_WAIT_NONE :
+ jiffies_to_msecs(acm->port.closing_wait) / 10;
mutex_lock(&acm->port.mutex);
- if (!capable(CAP_SYS_ADMIN)) {
- if ((close_delay != acm->port.close_delay) ||
- (closing_wait != acm->port.closing_wait))
+ if ((ss->close_delay != old_close_delay) ||
+ (ss->closing_wait != old_closing_wait)) {
+ if (!capable(CAP_SYS_ADMIN))
retval = -EPERM;
- else
- retval = -EOPNOTSUPP;
- } else {
- acm->port.close_delay = close_delay;
- acm->port.closing_wait = closing_wait;
- }
+ else {
+ acm->port.close_delay = close_delay;
+ acm->port.closing_wait = closing_wait;
+ }
+ } else
+ retval = -EOPNOTSUPP;
mutex_unlock(&acm->port.mutex);
return retval;
diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c
index 2dac3e7..da30b56 100644
--- a/drivers/usb/core/quirks.c
+++ b/drivers/usb/core/quirks.c
@@ -378,6 +378,12 @@ static const struct usb_device_id usb_quirk_list[] = {
{ USB_DEVICE(0x0b05, 0x17e0), .driver_info =
USB_QUIRK_IGNORE_REMOTE_WAKEUP },
+ /* Realtek hub in Dell WD19 (Type-C) */
+ { USB_DEVICE(0x0bda, 0x0487), .driver_info = USB_QUIRK_NO_LPM },
+
+ /* Generic RTL8153 based ethernet adapters */
+ { USB_DEVICE(0x0bda, 0x8153), .driver_info = USB_QUIRK_NO_LPM },
+
/* Action Semiconductor flash disk */
{ USB_DEVICE(0x10d6, 0x2200), .driver_info =
USB_QUIRK_STRING_FETCH_255 },
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index 5e9b537..1fddc41 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -136,7 +136,8 @@ static void xhci_pci_quirks(struct device *dev, struct xhci_hcd *xhci)
xhci->quirks |= XHCI_AMD_PLL_FIX;
if (pdev->vendor == PCI_VENDOR_ID_AMD &&
- (pdev->device == 0x15e0 ||
+ (pdev->device == 0x145c ||
+ pdev->device == 0x15e0 ||
pdev->device == 0x15e1 ||
pdev->device == 0x43bb))
xhci->quirks |= XHCI_SUSPEND_DELAY;
diff --git a/drivers/usb/host/xhci-plat.c b/drivers/usb/host/xhci-plat.c
index d90cd5e..315b455 100644
--- a/drivers/usb/host/xhci-plat.c
+++ b/drivers/usb/host/xhci-plat.c
@@ -445,6 +445,7 @@ MODULE_DEVICE_TABLE(acpi, usb_xhci_acpi_match);
static struct platform_driver usb_xhci_driver = {
.probe = xhci_plat_probe,
.remove = xhci_plat_remove,
+ .shutdown = usb_hcd_platform_shutdown,
.driver = {
.name = "xhci-hcd",
.pm = &xhci_plat_pm_ops,
diff --git a/drivers/usb/host/xhci-trace.h b/drivers/usb/host/xhci-trace.h
index 56eb867..b19582b 100644
--- a/drivers/usb/host/xhci-trace.h
+++ b/drivers/usb/host/xhci-trace.h
@@ -289,23 +289,12 @@ DECLARE_EVENT_CLASS(xhci_log_urb,
),
TP_printk("ep%d%s-%s: urb %p pipe %u slot %d length %d/%d sgs %d/%d stream %d flags %08x",
__entry->epnum, __entry->dir_in ? "in" : "out",
- ({ char *s;
- switch (__entry->type) {
- case USB_ENDPOINT_XFER_INT:
- s = "intr";
- break;
- case USB_ENDPOINT_XFER_CONTROL:
- s = "control";
- break;
- case USB_ENDPOINT_XFER_BULK:
- s = "bulk";
- break;
- case USB_ENDPOINT_XFER_ISOC:
- s = "isoc";
- break;
- default:
- s = "UNKNOWN";
- } s; }), __entry->urb, __entry->pipe, __entry->slot_id,
+ __print_symbolic(__entry->type,
+ { USB_ENDPOINT_XFER_INT, "intr" },
+ { USB_ENDPOINT_XFER_CONTROL, "control" },
+ { USB_ENDPOINT_XFER_BULK, "bulk" },
+ { USB_ENDPOINT_XFER_ISOC, "isoc" }),
+ __entry->urb, __entry->pipe, __entry->slot_id,
__entry->actual, __entry->length, __entry->num_mapped_sgs,
__entry->num_sgs, __entry->stream, __entry->flags
)
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index 084cc2f..0b5dcf9 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -1183,6 +1183,8 @@ static const struct usb_device_id option_ids[] = {
.driver_info = NCTRL(0) },
{ USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x110a, 0xff), /* Telit ME910G1 */
.driver_info = NCTRL(0) | RSVD(3) },
+ { USB_DEVICE_INTERFACE_CLASS(TELIT_VENDOR_ID, 0x110b, 0xff), /* Telit ME910G1 (ECM) */
+ .driver_info = NCTRL(0) },
{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE910),
.driver_info = NCTRL(0) | RSVD(1) | RSVD(2) },
{ USB_DEVICE(TELIT_VENDOR_ID, TELIT_PRODUCT_LE910_USBCFG4),
diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c
index aab737e..c5a2995 100644
--- a/drivers/usb/serial/pl2303.c
+++ b/drivers/usb/serial/pl2303.c
@@ -99,6 +99,7 @@ static const struct usb_device_id id_table[] = {
{ USB_DEVICE(SUPERIAL_VENDOR_ID, SUPERIAL_PRODUCT_ID) },
{ USB_DEVICE(HP_VENDOR_ID, HP_LD220_PRODUCT_ID) },
{ USB_DEVICE(HP_VENDOR_ID, HP_LD220TA_PRODUCT_ID) },
+ { USB_DEVICE(HP_VENDOR_ID, HP_LD381_PRODUCT_ID) },
{ USB_DEVICE(HP_VENDOR_ID, HP_LD960_PRODUCT_ID) },
{ USB_DEVICE(HP_VENDOR_ID, HP_LD960TA_PRODUCT_ID) },
{ USB_DEVICE(HP_VENDOR_ID, HP_LCM220_PRODUCT_ID) },
diff --git a/drivers/usb/serial/pl2303.h b/drivers/usb/serial/pl2303.h
index a019ea7..52db551 100644
--- a/drivers/usb/serial/pl2303.h
+++ b/drivers/usb/serial/pl2303.h
@@ -130,6 +130,7 @@
#define HP_LM920_PRODUCT_ID 0x026b
#define HP_TD620_PRODUCT_ID 0x0956
#define HP_LD960_PRODUCT_ID 0x0b39
+#define HP_LD381_PRODUCT_ID 0x0f7f
#define HP_LCM220_PRODUCT_ID 0x3139
#define HP_LCM960_PRODUCT_ID 0x3239
#define HP_LD220_PRODUCT_ID 0x3524
diff --git a/drivers/usb/typec/ucsi/displayport.c b/drivers/usb/typec/ucsi/displayport.c
index 0f1273ae..048381c 100644
--- a/drivers/usb/typec/ucsi/displayport.c
+++ b/drivers/usb/typec/ucsi/displayport.c
@@ -271,6 +271,9 @@ void ucsi_displayport_remove_partner(struct typec_altmode *alt)
return;
dp = typec_altmode_get_drvdata(alt);
+ if (!dp)
+ return;
+
dp->data.conf = 0;
dp->data.status = 0;
dp->initialized = false;
@@ -285,6 +288,8 @@ struct typec_altmode *ucsi_register_displayport(struct ucsi_connector *con,
struct typec_altmode *alt;
struct ucsi_dp *dp;
+ mutex_lock(&con->lock);
+
/* We can't rely on the firmware with the capabilities. */
desc->vdo |= DP_CAP_DP_SIGNALING | DP_CAP_RECEPTACLE;
@@ -293,12 +298,15 @@ struct typec_altmode *ucsi_register_displayport(struct ucsi_connector *con,
desc->vdo |= all_assignments << 16;
alt = typec_port_register_altmode(con->port, desc);
- if (IS_ERR(alt))
+ if (IS_ERR(alt)) {
+ mutex_unlock(&con->lock);
return alt;
+ }
dp = devm_kzalloc(&alt->dev, sizeof(*dp), GFP_KERNEL);
if (!dp) {
typec_unregister_altmode(alt);
+ mutex_unlock(&con->lock);
return ERR_PTR(-ENOMEM);
}
@@ -311,5 +319,7 @@ struct typec_altmode *ucsi_register_displayport(struct ucsi_connector *con,
alt->ops = &ucsi_displayport_ops;
typec_altmode_set_drvdata(alt, dp);
+ mutex_unlock(&con->lock);
+
return alt;
}
diff --git a/fs/btrfs/block-group.c b/fs/btrfs/block-group.c
index 404e050..7f09147 100644
--- a/fs/btrfs/block-group.c
+++ b/fs/btrfs/block-group.c
@@ -856,9 +856,9 @@ static void clear_incompat_bg_bits(struct btrfs_fs_info *fs_info, u64 flags)
found_raid1c34 = true;
up_read(&sinfo->groups_sem);
}
- if (found_raid56)
+ if (!found_raid56)
btrfs_clear_fs_incompat(fs_info, RAID56);
- if (found_raid1c34)
+ if (!found_raid1c34)
btrfs_clear_fs_incompat(fs_info, RAID1C34);
}
}
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index 27076eb..d267eb5 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -9496,6 +9496,10 @@ static int btrfs_rename(struct inode *old_dir, struct dentry *old_dentry,
ret = btrfs_sync_log(trans, BTRFS_I(old_inode)->root, &ctx);
if (ret)
commit_transaction = true;
+ } else if (sync_log) {
+ mutex_lock(&root->log_mutex);
+ list_del(&ctx.list);
+ mutex_unlock(&root->log_mutex);
}
if (commit_transaction) {
ret = btrfs_commit_transaction(trans);
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 3b942ec..8f9d849 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -1169,7 +1169,8 @@ cifs_posix_lock_set(struct file *file, struct file_lock *flock)
rc = posix_lock_file(file, flock, NULL);
up_write(&cinode->lock_sem);
if (rc == FILE_LOCK_DEFERRED) {
- rc = wait_event_interruptible(flock->fl_wait, !flock->fl_blocker);
+ rc = wait_event_interruptible(flock->fl_wait,
+ list_empty(&flock->fl_blocked_member));
if (!rc)
goto try_again;
locks_delete_block(flock);
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index 1e8a4b1..b16f8d2 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -2191,7 +2191,7 @@ int cifs_getattr(const struct path *path, struct kstat *stat,
if (!(cifs_sb->mnt_cifs_flags & CIFS_MOUNT_OVERR_GID))
stat->gid = current_fsgid();
}
- return rc;
+ return 0;
}
int cifs_fiemap(struct inode *inode, struct fiemap_extent_info *fei, u64 start,
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index c31e84e..cfe9b80 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -2222,6 +2222,8 @@ smb2_query_dir_first(const unsigned int xid, struct cifs_tcon *tcon,
goto qdf_free;
}
+ atomic_inc(&tcon->num_remote_opens);
+
qd_rsp = (struct smb2_query_directory_rsp *)rsp_iov[1].iov_base;
if (qd_rsp->sync_hdr.Status == STATUS_NO_MORE_FILES) {
trace_smb3_query_dir_done(xid, fid->persistent_fid,
@@ -3417,7 +3419,7 @@ static int smb3_fiemap(struct cifs_tcon *tcon,
if (rc)
goto out;
- if (out_data_len < sizeof(struct file_allocated_range_buffer)) {
+ if (out_data_len && out_data_len < sizeof(struct file_allocated_range_buffer)) {
rc = -EINVAL;
goto out;
}
diff --git a/fs/eventpoll.c b/fs/eventpoll.c
index b041b66..eee3c92a 100644
--- a/fs/eventpoll.c
+++ b/fs/eventpoll.c
@@ -1854,9 +1854,9 @@ static int ep_poll(struct eventpoll *ep, struct epoll_event __user *events,
waiter = true;
init_waitqueue_entry(&wait, current);
- spin_lock_irq(&ep->wq.lock);
+ write_lock_irq(&ep->lock);
__add_wait_queue_exclusive(&ep->wq, &wait);
- spin_unlock_irq(&ep->wq.lock);
+ write_unlock_irq(&ep->lock);
}
for (;;) {
@@ -1904,9 +1904,9 @@ static int ep_poll(struct eventpoll *ep, struct epoll_event __user *events,
goto fetch_events;
if (waiter) {
- spin_lock_irq(&ep->wq.lock);
+ write_lock_irq(&ep->lock);
__remove_wait_queue(&ep->wq, &wait);
- spin_unlock_irq(&ep->wq.lock);
+ write_unlock_irq(&ep->lock);
}
return res;
diff --git a/fs/file.c b/fs/file.c
index a364e1a..c8a4e4c 100644
--- a/fs/file.c
+++ b/fs/file.c
@@ -540,9 +540,14 @@ static int alloc_fd(unsigned start, unsigned flags)
return __alloc_fd(current->files, start, rlimit(RLIMIT_NOFILE), flags);
}
+int __get_unused_fd_flags(unsigned flags, unsigned long nofile)
+{
+ return __alloc_fd(current->files, 0, nofile, flags);
+}
+
int get_unused_fd_flags(unsigned flags)
{
- return __alloc_fd(current->files, 0, rlimit(RLIMIT_NOFILE), flags);
+ return __get_unused_fd_flags(flags, rlimit(RLIMIT_NOFILE));
}
EXPORT_SYMBOL(get_unused_fd_flags);
diff --git a/fs/io_uring.c b/fs/io_uring.c
index 1b25172..3affd96 100644
--- a/fs/io_uring.c
+++ b/fs/io_uring.c
@@ -343,6 +343,7 @@ struct io_accept {
struct sockaddr __user *addr;
int __user *addr_len;
int flags;
+ unsigned long nofile;
};
struct io_sync {
@@ -397,6 +398,7 @@ struct io_open {
struct filename *filename;
struct statx __user *buffer;
struct open_how how;
+ unsigned long nofile;
};
struct io_files_update {
@@ -2577,6 +2579,7 @@ static int io_openat_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
return ret;
}
+ req->open.nofile = rlimit(RLIMIT_NOFILE);
req->flags |= REQ_F_NEED_CLEANUP;
return 0;
}
@@ -2618,6 +2621,7 @@ static int io_openat2_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
return ret;
}
+ req->open.nofile = rlimit(RLIMIT_NOFILE);
req->flags |= REQ_F_NEED_CLEANUP;
return 0;
}
@@ -2636,7 +2640,7 @@ static int io_openat2(struct io_kiocb *req, struct io_kiocb **nxt,
if (ret)
goto err;
- ret = get_unused_fd_flags(req->open.how.flags);
+ ret = __get_unused_fd_flags(req->open.how.flags, req->open.nofile);
if (ret < 0)
goto err;
@@ -3321,6 +3325,7 @@ static int io_accept_prep(struct io_kiocb *req, const struct io_uring_sqe *sqe)
accept->addr = u64_to_user_ptr(READ_ONCE(sqe->addr));
accept->addr_len = u64_to_user_ptr(READ_ONCE(sqe->addr2));
accept->flags = READ_ONCE(sqe->accept_flags);
+ accept->nofile = rlimit(RLIMIT_NOFILE);
return 0;
#else
return -EOPNOTSUPP;
@@ -3337,7 +3342,8 @@ static int __io_accept(struct io_kiocb *req, struct io_kiocb **nxt,
file_flags = force_nonblock ? O_NONBLOCK : 0;
ret = __sys_accept4_file(req->file, file_flags, accept->addr,
- accept->addr_len, accept->flags);
+ accept->addr_len, accept->flags,
+ accept->nofile);
if (ret == -EAGAIN && force_nonblock)
return -EAGAIN;
if (ret == -ERESTARTSYS)
@@ -4131,6 +4137,9 @@ static int io_req_defer_prep(struct io_kiocb *req,
{
ssize_t ret = 0;
+ if (!sqe)
+ return 0;
+
if (io_op_defs[req->opcode].file_table) {
ret = io_grab_files(req);
if (unlikely(ret))
@@ -4907,6 +4916,11 @@ static bool io_submit_sqe(struct io_kiocb *req, const struct io_uring_sqe *sqe,
if (sqe_flags & (IOSQE_IO_LINK|IOSQE_IO_HARDLINK)) {
req->flags |= REQ_F_LINK;
INIT_LIST_HEAD(&req->link_list);
+
+ if (io_alloc_async_ctx(req)) {
+ ret = -EAGAIN;
+ goto err_req;
+ }
ret = io_req_defer_prep(req, sqe);
if (ret)
req->flags |= REQ_F_FAIL_LINK;
diff --git a/fs/locks.c b/fs/locks.c
index 426b55d..b8a31c1 100644
--- a/fs/locks.c
+++ b/fs/locks.c
@@ -725,7 +725,6 @@ static void __locks_delete_block(struct file_lock *waiter)
{
locks_delete_global_blocked(waiter);
list_del_init(&waiter->fl_blocked_member);
- waiter->fl_blocker = NULL;
}
static void __locks_wake_up_blocks(struct file_lock *blocker)
@@ -740,6 +739,13 @@ static void __locks_wake_up_blocks(struct file_lock *blocker)
waiter->fl_lmops->lm_notify(waiter);
else
wake_up(&waiter->fl_wait);
+
+ /*
+ * The setting of fl_blocker to NULL marks the "done"
+ * point in deleting a block. Paired with acquire at the top
+ * of locks_delete_block().
+ */
+ smp_store_release(&waiter->fl_blocker, NULL);
}
}
@@ -753,11 +759,42 @@ int locks_delete_block(struct file_lock *waiter)
{
int status = -ENOENT;
+ /*
+ * If fl_blocker is NULL, it won't be set again as this thread "owns"
+ * the lock and is the only one that might try to claim the lock.
+ *
+ * We use acquire/release to manage fl_blocker so that we can
+ * optimize away taking the blocked_lock_lock in many cases.
+ *
+ * The smp_load_acquire guarantees two things:
+ *
+ * 1/ that fl_blocked_requests can be tested locklessly. If something
+ * was recently added to that list it must have been in a locked region
+ * *before* the locked region when fl_blocker was set to NULL.
+ *
+ * 2/ that no other thread is accessing 'waiter', so it is safe to free
+ * it. __locks_wake_up_blocks is careful not to touch waiter after
+ * fl_blocker is released.
+ *
+ * If a lockless check of fl_blocker shows it to be NULL, we know that
+ * no new locks can be inserted into its fl_blocked_requests list, and
+ * can avoid doing anything further if the list is empty.
+ */
+ if (!smp_load_acquire(&waiter->fl_blocker) &&
+ list_empty(&waiter->fl_blocked_requests))
+ return status;
+
spin_lock(&blocked_lock_lock);
if (waiter->fl_blocker)
status = 0;
__locks_wake_up_blocks(waiter);
__locks_delete_block(waiter);
+
+ /*
+ * The setting of fl_blocker to NULL marks the "done" point in deleting
+ * a block. Paired with acquire at the top of this function.
+ */
+ smp_store_release(&waiter->fl_blocker, NULL);
spin_unlock(&blocked_lock_lock);
return status;
}
@@ -1350,7 +1387,8 @@ static int posix_lock_inode_wait(struct inode *inode, struct file_lock *fl)
error = posix_lock_inode(inode, fl, NULL);
if (error != FILE_LOCK_DEFERRED)
break;
- error = wait_event_interruptible(fl->fl_wait, !fl->fl_blocker);
+ error = wait_event_interruptible(fl->fl_wait,
+ list_empty(&fl->fl_blocked_member));
if (error)
break;
}
@@ -1435,7 +1473,8 @@ int locks_mandatory_area(struct inode *inode, struct file *filp, loff_t start,
error = posix_lock_inode(inode, &fl, NULL);
if (error != FILE_LOCK_DEFERRED)
break;
- error = wait_event_interruptible(fl.fl_wait, !fl.fl_blocker);
+ error = wait_event_interruptible(fl.fl_wait,
+ list_empty(&fl.fl_blocked_member));
if (!error) {
/*
* If we've been sleeping someone might have
@@ -1638,7 +1677,8 @@ int __break_lease(struct inode *inode, unsigned int mode, unsigned int type)
locks_dispose_list(&dispose);
error = wait_event_interruptible_timeout(new_fl->fl_wait,
- !new_fl->fl_blocker, break_time);
+ list_empty(&new_fl->fl_blocked_member),
+ break_time);
percpu_down_read(&file_rwsem);
spin_lock(&ctx->flc_lock);
@@ -2122,7 +2162,8 @@ static int flock_lock_inode_wait(struct inode *inode, struct file_lock *fl)
error = flock_lock_inode(inode, fl);
if (error != FILE_LOCK_DEFERRED)
break;
- error = wait_event_interruptible(fl->fl_wait, !fl->fl_blocker);
+ error = wait_event_interruptible(fl->fl_wait,
+ list_empty(&fl->fl_blocked_member));
if (error)
break;
}
@@ -2399,7 +2440,8 @@ static int do_lock_file_wait(struct file *filp, unsigned int cmd,
error = vfs_lock_file(filp, cmd, fl, NULL);
if (error != FILE_LOCK_DEFERRED)
break;
- error = wait_event_interruptible(fl->fl_wait, !fl->fl_blocker);
+ error = wait_event_interruptible(fl->fl_wait,
+ list_empty(&fl->fl_blocked_member));
if (error)
break;
}
diff --git a/include/linux/file.h b/include/linux/file.h
index c6c7b24..142d102 100644
--- a/include/linux/file.h
+++ b/include/linux/file.h
@@ -85,6 +85,7 @@ extern int f_dupfd(unsigned int from, struct file *file, unsigned flags);
extern int replace_fd(unsigned fd, struct file *file, unsigned flags);
extern void set_close_on_exec(unsigned int fd, int flag);
extern bool get_close_on_exec(unsigned int fd);
+extern int __get_unused_fd_flags(unsigned flags, unsigned long nofile);
extern int get_unused_fd_flags(unsigned flags);
extern void put_unused_fd(unsigned int fd);
diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h
index 1bf83c8..77de28b 100644
--- a/include/linux/page-flags.h
+++ b/include/linux/page-flags.h
@@ -311,7 +311,7 @@ static inline int TestClearPage##uname(struct page *page) { return 0; }
__PAGEFLAG(Locked, locked, PF_NO_TAIL)
PAGEFLAG(Waiters, waiters, PF_ONLY_HEAD) __CLEARPAGEFLAG(Waiters, waiters, PF_ONLY_HEAD)
-PAGEFLAG(Error, error, PF_NO_COMPOUND) TESTCLEARFLAG(Error, error, PF_NO_COMPOUND)
+PAGEFLAG(Error, error, PF_NO_TAIL) TESTCLEARFLAG(Error, error, PF_NO_TAIL)
PAGEFLAG(Referenced, referenced, PF_HEAD)
TESTCLEARFLAG(Referenced, referenced, PF_HEAD)
__SETPAGEFLAG(Referenced, referenced, PF_HEAD)
diff --git a/include/linux/pm_qos.h b/include/linux/pm_qos.h
index 19eafca..4a69d4a 100644
--- a/include/linux/pm_qos.h
+++ b/include/linux/pm_qos.h
@@ -1,22 +1,20 @@
/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Definitions related to Power Management Quality of Service (PM QoS).
+ *
+ * Copyright (C) 2020 Intel Corporation
+ *
+ * Authors:
+ * Mark Gross <mgross@linux.intel.com>
+ * Rafael J. Wysocki <rafael.j.wysocki@intel.com>
+ */
+
#ifndef _LINUX_PM_QOS_H
#define _LINUX_PM_QOS_H
-/* interface for the pm_qos_power infrastructure of the linux kernel.
- *
- * Mark Gross <mgross@linux.intel.com>
- */
+
#include <linux/plist.h>
#include <linux/notifier.h>
#include <linux/device.h>
-#include <linux/workqueue.h>
-
-enum {
- PM_QOS_RESERVED = 0,
- PM_QOS_CPU_DMA_LATENCY,
-
- /* insert new class ID */
- PM_QOS_NUM_CLASSES,
-};
enum pm_qos_flags_status {
PM_QOS_FLAGS_UNDEFINED = -1,
@@ -29,7 +27,7 @@ enum pm_qos_flags_status {
#define PM_QOS_LATENCY_ANY S32_MAX
#define PM_QOS_LATENCY_ANY_NS ((s64)PM_QOS_LATENCY_ANY * NSEC_PER_USEC)
-#define PM_QOS_CPU_DMA_LAT_DEFAULT_VALUE (2000 * USEC_PER_SEC)
+#define PM_QOS_CPU_LATENCY_DEFAULT_VALUE (2000 * USEC_PER_SEC)
#define PM_QOS_RESUME_LATENCY_DEFAULT_VALUE PM_QOS_LATENCY_ANY
#define PM_QOS_RESUME_LATENCY_NO_CONSTRAINT PM_QOS_LATENCY_ANY
#define PM_QOS_RESUME_LATENCY_NO_CONSTRAINT_NS PM_QOS_LATENCY_ANY_NS
@@ -40,22 +38,10 @@ enum pm_qos_flags_status {
#define PM_QOS_FLAG_NO_POWER_OFF (1 << 0)
-struct pm_qos_request {
- struct plist_node node;
- int pm_qos_class;
- struct delayed_work work; /* for pm_qos_update_request_timeout */
-};
-
-struct pm_qos_flags_request {
- struct list_head node;
- s32 flags; /* Do not change to 64 bit */
-};
-
enum pm_qos_type {
PM_QOS_UNITIALIZED,
PM_QOS_MAX, /* return the largest value */
PM_QOS_MIN, /* return the smallest value */
- PM_QOS_SUM /* return the sum */
};
/*
@@ -72,6 +58,16 @@ struct pm_qos_constraints {
struct blocking_notifier_head *notifiers;
};
+struct pm_qos_request {
+ struct plist_node node;
+ struct pm_qos_constraints *qos;
+};
+
+struct pm_qos_flags_request {
+ struct list_head node;
+ s32 flags; /* Do not change to 64 bit */
+};
+
struct pm_qos_flags {
struct list_head list;
s32 effective_flags; /* Do not change to 64 bit */
@@ -140,24 +136,31 @@ static inline int dev_pm_qos_request_active(struct dev_pm_qos_request *req)
return req->dev != NULL;
}
+s32 pm_qos_read_value(struct pm_qos_constraints *c);
int pm_qos_update_target(struct pm_qos_constraints *c, struct plist_node *node,
enum pm_qos_req_action action, int value);
bool pm_qos_update_flags(struct pm_qos_flags *pqf,
struct pm_qos_flags_request *req,
enum pm_qos_req_action action, s32 val);
-void pm_qos_add_request(struct pm_qos_request *req, int pm_qos_class,
- s32 value);
-void pm_qos_update_request(struct pm_qos_request *req,
- s32 new_value);
-void pm_qos_update_request_timeout(struct pm_qos_request *req,
- s32 new_value, unsigned long timeout_us);
-void pm_qos_remove_request(struct pm_qos_request *req);
-int pm_qos_request(int pm_qos_class);
-int pm_qos_add_notifier(int pm_qos_class, struct notifier_block *notifier);
-int pm_qos_remove_notifier(int pm_qos_class, struct notifier_block *notifier);
-int pm_qos_request_active(struct pm_qos_request *req);
-s32 pm_qos_read_value(struct pm_qos_constraints *c);
+#ifdef CONFIG_CPU_IDLE
+s32 cpu_latency_qos_limit(void);
+bool cpu_latency_qos_request_active(struct pm_qos_request *req);
+void cpu_latency_qos_add_request(struct pm_qos_request *req, s32 value);
+void cpu_latency_qos_update_request(struct pm_qos_request *req, s32 new_value);
+void cpu_latency_qos_remove_request(struct pm_qos_request *req);
+#else
+static inline s32 cpu_latency_qos_limit(void) { return INT_MAX; }
+static inline bool cpu_latency_qos_request_active(struct pm_qos_request *req)
+{
+ return false;
+}
+static inline void cpu_latency_qos_add_request(struct pm_qos_request *req,
+ s32 value) {}
+static inline void cpu_latency_qos_update_request(struct pm_qos_request *req,
+ s32 new_value) {}
+static inline void cpu_latency_qos_remove_request(struct pm_qos_request *req) {}
+#endif
#ifdef CONFIG_PM
enum pm_qos_flags_status __dev_pm_qos_flags(struct device *dev, s32 mask);
diff --git a/include/linux/pm_runtime.h b/include/linux/pm_runtime.h
index 22af69d..3bdcbce 100644
--- a/include/linux/pm_runtime.h
+++ b/include/linux/pm_runtime.h
@@ -38,7 +38,7 @@ extern int pm_runtime_force_resume(struct device *dev);
extern int __pm_runtime_idle(struct device *dev, int rpmflags);
extern int __pm_runtime_suspend(struct device *dev, int rpmflags);
extern int __pm_runtime_resume(struct device *dev, int rpmflags);
-extern int pm_runtime_get_if_in_use(struct device *dev);
+extern int pm_runtime_get_if_active(struct device *dev, bool ign_usage_count);
extern int pm_schedule_suspend(struct device *dev, unsigned int delay);
extern int __pm_runtime_set_status(struct device *dev, unsigned int status);
extern int pm_runtime_barrier(struct device *dev);
@@ -60,6 +60,11 @@ extern void pm_runtime_put_suppliers(struct device *dev);
extern void pm_runtime_new_link(struct device *dev);
extern void pm_runtime_drop_link(struct device *dev);
+static inline int pm_runtime_get_if_in_use(struct device *dev)
+{
+ return pm_runtime_get_if_active(dev, false);
+}
+
static inline void pm_suspend_ignore_children(struct device *dev, bool enable)
{
dev->power.ignore_children = enable;
@@ -143,6 +148,11 @@ static inline int pm_runtime_get_if_in_use(struct device *dev)
{
return -EINVAL;
}
+static inline int pm_runtime_get_if_active(struct device *dev,
+ bool ign_usage_count)
+{
+ return -EINVAL;
+}
static inline int __pm_runtime_set_status(struct device *dev,
unsigned int status) { return 0; }
static inline int pm_runtime_barrier(struct device *dev) { return 0; }
diff --git a/include/linux/socket.h b/include/linux/socket.h
index 2d23134..15f3412 100644
--- a/include/linux/socket.h
+++ b/include/linux/socket.h
@@ -401,7 +401,8 @@ extern int __sys_sendto(int fd, void __user *buff, size_t len,
int addr_len);
extern int __sys_accept4_file(struct file *file, unsigned file_flags,
struct sockaddr __user *upeer_sockaddr,
- int __user *upeer_addrlen, int flags);
+ int __user *upeer_addrlen, int flags,
+ unsigned long nofile);
extern int __sys_accept4(int fd, struct sockaddr __user *upeer_sockaddr,
int __user *upeer_addrlen, int flags);
extern int __sys_socket(int family, int type, int protocol);
diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h
index ec38132..0507a162 100644
--- a/include/linux/vmalloc.h
+++ b/include/linux/vmalloc.h
@@ -141,8 +141,9 @@ extern int remap_vmalloc_range_partial(struct vm_area_struct *vma,
extern int remap_vmalloc_range(struct vm_area_struct *vma, void *addr,
unsigned long pgoff);
-void vmalloc_sync_all(void);
-
+void vmalloc_sync_mappings(void);
+void vmalloc_sync_unmappings(void);
+
/*
* Lowlevel-APIs (not for driver use!)
*/
diff --git a/include/trace/events/power.h b/include/trace/events/power.h
index 7457e23..af5018a 100644
--- a/include/trace/events/power.h
+++ b/include/trace/events/power.h
@@ -359,75 +359,50 @@ DEFINE_EVENT(power_domain, power_domain_target,
);
/*
- * The pm qos events are used for pm qos update
+ * CPU latency QoS events used for global CPU latency QoS list updates
*/
-DECLARE_EVENT_CLASS(pm_qos_request,
+DECLARE_EVENT_CLASS(cpu_latency_qos_request,
- TP_PROTO(int pm_qos_class, s32 value),
+ TP_PROTO(s32 value),
- TP_ARGS(pm_qos_class, value),
+ TP_ARGS(value),
TP_STRUCT__entry(
- __field( int, pm_qos_class )
__field( s32, value )
),
TP_fast_assign(
- __entry->pm_qos_class = pm_qos_class;
__entry->value = value;
),
- TP_printk("pm_qos_class=%s value=%d",
- __print_symbolic(__entry->pm_qos_class,
- { PM_QOS_CPU_DMA_LATENCY, "CPU_DMA_LATENCY" }),
+ TP_printk("CPU_DMA_LATENCY value=%d",
__entry->value)
);
-DEFINE_EVENT(pm_qos_request, pm_qos_add_request,
+DEFINE_EVENT(cpu_latency_qos_request, pm_qos_add_request,
- TP_PROTO(int pm_qos_class, s32 value),
+ TP_PROTO(s32 value),
- TP_ARGS(pm_qos_class, value)
+ TP_ARGS(value)
);
-DEFINE_EVENT(pm_qos_request, pm_qos_update_request,
+DEFINE_EVENT(cpu_latency_qos_request, pm_qos_update_request,
- TP_PROTO(int pm_qos_class, s32 value),
+ TP_PROTO(s32 value),
- TP_ARGS(pm_qos_class, value)
+ TP_ARGS(value)
);
-DEFINE_EVENT(pm_qos_request, pm_qos_remove_request,
+DEFINE_EVENT(cpu_latency_qos_request, pm_qos_remove_request,
- TP_PROTO(int pm_qos_class, s32 value),
+ TP_PROTO(s32 value),
- TP_ARGS(pm_qos_class, value)
+ TP_ARGS(value)
);
-TRACE_EVENT(pm_qos_update_request_timeout,
-
- TP_PROTO(int pm_qos_class, s32 value, unsigned long timeout_us),
-
- TP_ARGS(pm_qos_class, value, timeout_us),
-
- TP_STRUCT__entry(
- __field( int, pm_qos_class )
- __field( s32, value )
- __field( unsigned long, timeout_us )
- ),
-
- TP_fast_assign(
- __entry->pm_qos_class = pm_qos_class;
- __entry->value = value;
- __entry->timeout_us = timeout_us;
- ),
-
- TP_printk("pm_qos_class=%s value=%d, timeout_us=%ld",
- __print_symbolic(__entry->pm_qos_class,
- { PM_QOS_CPU_DMA_LATENCY, "CPU_DMA_LATENCY" }),
- __entry->value, __entry->timeout_us)
-);
-
+/*
+ * General PM QoS events used for updates of PM QoS request lists
+ */
DECLARE_EVENT_CLASS(pm_qos_update,
TP_PROTO(enum pm_qos_req_action action, int prev_value, int curr_value),
diff --git a/init/Kconfig b/init/Kconfig
index 20a6ac3..4f717bf 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -767,8 +767,7 @@
bool
config CC_HAS_INT128
- def_bool y
- depends on !$(cc-option,-D__SIZEOF_INT128__=0)
+ def_bool !$(cc-option,$(m64-flag) -D__SIZEOF_INT128__=0) && 64BIT
#
# For architectures that know their GCC __int128 support is sound
diff --git a/kernel/notifier.c b/kernel/notifier.c
index 63d7501..5989bbb 100644
--- a/kernel/notifier.c
+++ b/kernel/notifier.c
@@ -519,7 +519,7 @@ NOKPROBE_SYMBOL(notify_die);
int register_die_notifier(struct notifier_block *nb)
{
- vmalloc_sync_all();
+ vmalloc_sync_mappings();
return atomic_notifier_chain_register(&die_chain, nb);
}
EXPORT_SYMBOL_GPL(register_die_notifier);
diff --git a/kernel/power/qos.c b/kernel/power/qos.c
index 83edf86..db0bed2 100644
--- a/kernel/power/qos.c
+++ b/kernel/power/qos.c
@@ -1,31 +1,21 @@
// SPDX-License-Identifier: GPL-2.0-only
/*
- * This module exposes the interface to kernel space for specifying
- * QoS dependencies. It provides infrastructure for registration of:
+ * Power Management Quality of Service (PM QoS) support base.
*
- * Dependents on a QoS value : register requests
- * Watchers of QoS value : get notified when target QoS value changes
+ * Copyright (C) 2020 Intel Corporation
*
- * This QoS design is best effort based. Dependents register their QoS needs.
- * Watchers register to keep track of the current QoS needs of the system.
+ * Authors:
+ * Mark Gross <mgross@linux.intel.com>
+ * Rafael J. Wysocki <rafael.j.wysocki@intel.com>
*
- * There are 3 basic classes of QoS parameter: latency, timeout, throughput
- * each have defined units:
- * latency: usec
- * timeout: usec <-- currently not used.
- * throughput: kbs (kilo byte / sec)
+ * Provided here is an interface for specifying PM QoS dependencies. It allows
+ * entities depending on QoS constraints to register their requests which are
+ * aggregated as appropriate to produce effective constraints (target values)
+ * that can be monitored by entities needing to respect them, either by polling
+ * or through a built-in notification mechanism.
*
- * There are lists of pm_qos_objects each one wrapping requests, notifiers
- *
- * User mode requests on a QOS parameter register themselves to the
- * subsystem by opening the device node /dev/... and writing there request to
- * the node. As long as the process holds a file handle open to the node the
- * client continues to be accounted for. Upon file release the usermode
- * request is removed and a new qos target is computed. This way when the
- * request that the application has is cleaned up when closes the file
- * pointer or exits the pm_qos_object will get an opportunity to clean up.
- *
- * Mark Gross <mgross@linux.intel.com>
+ * In addition to the basic functionality, more specific interfaces for managing
+ * global CPU latency QoS requests and frequency QoS requests are provided.
*/
/*#define DEBUG*/
@@ -54,56 +44,19 @@
* or pm_qos_object list and pm_qos_objects need to happen with pm_qos_lock
* held, taken with _irqsave. One lock to rule them all
*/
-struct pm_qos_object {
- struct pm_qos_constraints *constraints;
- struct miscdevice pm_qos_power_miscdev;
- char *name;
-};
-
static DEFINE_SPINLOCK(pm_qos_lock);
-static struct pm_qos_object null_pm_qos;
-
-static BLOCKING_NOTIFIER_HEAD(cpu_dma_lat_notifier);
-static struct pm_qos_constraints cpu_dma_constraints = {
- .list = PLIST_HEAD_INIT(cpu_dma_constraints.list),
- .target_value = PM_QOS_CPU_DMA_LAT_DEFAULT_VALUE,
- .default_value = PM_QOS_CPU_DMA_LAT_DEFAULT_VALUE,
- .no_constraint_value = PM_QOS_CPU_DMA_LAT_DEFAULT_VALUE,
- .type = PM_QOS_MIN,
- .notifiers = &cpu_dma_lat_notifier,
-};
-static struct pm_qos_object cpu_dma_pm_qos = {
- .constraints = &cpu_dma_constraints,
- .name = "cpu_dma_latency",
-};
-
-static struct pm_qos_object *pm_qos_array[] = {
- &null_pm_qos,
- &cpu_dma_pm_qos,
-};
-
-static ssize_t pm_qos_power_write(struct file *filp, const char __user *buf,
- size_t count, loff_t *f_pos);
-static ssize_t pm_qos_power_read(struct file *filp, char __user *buf,
- size_t count, loff_t *f_pos);
-static int pm_qos_power_open(struct inode *inode, struct file *filp);
-static int pm_qos_power_release(struct inode *inode, struct file *filp);
-
-static const struct file_operations pm_qos_power_fops = {
- .write = pm_qos_power_write,
- .read = pm_qos_power_read,
- .open = pm_qos_power_open,
- .release = pm_qos_power_release,
- .llseek = noop_llseek,
-};
-
-/* unlocked internal variant */
-static inline int pm_qos_get_value(struct pm_qos_constraints *c)
+/**
+ * pm_qos_read_value - Return the current effective constraint value.
+ * @c: List of PM QoS constraint requests.
+ */
+s32 pm_qos_read_value(struct pm_qos_constraints *c)
{
- struct plist_node *node;
- int total_value = 0;
+ return READ_ONCE(c->target_value);
+}
+static int pm_qos_get_value(struct pm_qos_constraints *c)
+{
if (plist_head_empty(&c->list))
return c->no_constraint_value;
@@ -114,111 +67,42 @@ static inline int pm_qos_get_value(struct pm_qos_constraints *c)
case PM_QOS_MAX:
return plist_last(&c->list)->prio;
- case PM_QOS_SUM:
- plist_for_each(node, &c->list)
- total_value += node->prio;
-
- return total_value;
-
default:
- /* runtime check for not using enum */
- BUG();
+ WARN(1, "Unknown PM QoS type in %s\n", __func__);
return PM_QOS_DEFAULT_VALUE;
}
}
-s32 pm_qos_read_value(struct pm_qos_constraints *c)
+static void pm_qos_set_value(struct pm_qos_constraints *c, s32 value)
{
- return c->target_value;
+ WRITE_ONCE(c->target_value, value);
}
-static inline void pm_qos_set_value(struct pm_qos_constraints *c, s32 value)
-{
- c->target_value = value;
-}
-
-static int pm_qos_debug_show(struct seq_file *s, void *unused)
-{
- struct pm_qos_object *qos = (struct pm_qos_object *)s->private;
- struct pm_qos_constraints *c;
- struct pm_qos_request *req;
- char *type;
- unsigned long flags;
- int tot_reqs = 0;
- int active_reqs = 0;
-
- if (IS_ERR_OR_NULL(qos)) {
- pr_err("%s: bad qos param!\n", __func__);
- return -EINVAL;
- }
- c = qos->constraints;
- if (IS_ERR_OR_NULL(c)) {
- pr_err("%s: Bad constraints on qos?\n", __func__);
- return -EINVAL;
- }
-
- /* Lock to ensure we have a snapshot */
- spin_lock_irqsave(&pm_qos_lock, flags);
- if (plist_head_empty(&c->list)) {
- seq_puts(s, "Empty!\n");
- goto out;
- }
-
- switch (c->type) {
- case PM_QOS_MIN:
- type = "Minimum";
- break;
- case PM_QOS_MAX:
- type = "Maximum";
- break;
- case PM_QOS_SUM:
- type = "Sum";
- break;
- default:
- type = "Unknown";
- }
-
- plist_for_each_entry(req, &c->list, node) {
- char *state = "Default";
-
- if ((req->node).prio != c->default_value) {
- active_reqs++;
- state = "Active";
- }
- tot_reqs++;
- seq_printf(s, "%d: %d: %s\n", tot_reqs,
- (req->node).prio, state);
- }
-
- seq_printf(s, "Type=%s, Value=%d, Requests: active=%d / total=%d\n",
- type, pm_qos_get_value(c), active_reqs, tot_reqs);
-
-out:
- spin_unlock_irqrestore(&pm_qos_lock, flags);
- return 0;
-}
-
-DEFINE_SHOW_ATTRIBUTE(pm_qos_debug);
-
/**
- * pm_qos_update_target - manages the constraints list and calls the notifiers
- * if needed
- * @c: constraints data struct
- * @node: request to add to the list, to update or to remove
- * @action: action to take on the constraints list
- * @value: value of the request to add or update
+ * pm_qos_update_target - Update a list of PM QoS constraint requests.
+ * @c: List of PM QoS requests.
+ * @node: Target list entry.
+ * @action: Action to carry out (add, update or remove).
+ * @value: New request value for the target list entry.
*
- * This function returns 1 if the aggregated constraint value has changed, 0
- * otherwise.
+ * Update the given list of PM QoS constraint requests, @c, by carrying an
+ * @action involving the @node list entry and @value on it.
+ *
+ * The recognized values of @action are PM_QOS_ADD_REQ (store @value in @node
+ * and add it to the list), PM_QOS_UPDATE_REQ (remove @node from the list, store
+ * @value in it and add it to the list again), and PM_QOS_REMOVE_REQ (remove
+ * @node from the list, ignore @value).
+ *
+ * Return: 1 if the aggregate constraint value has changed, 0 otherwise.
*/
int pm_qos_update_target(struct pm_qos_constraints *c, struct plist_node *node,
enum pm_qos_req_action action, int value)
{
- unsigned long flags;
int prev_value, curr_value, new_value;
- int ret;
+ unsigned long flags;
spin_lock_irqsave(&pm_qos_lock, flags);
+
prev_value = pm_qos_get_value(c);
if (value == PM_QOS_DEFAULT_VALUE)
new_value = c->default_value;
@@ -231,9 +115,8 @@ int pm_qos_update_target(struct pm_qos_constraints *c, struct plist_node *node,
break;
case PM_QOS_UPDATE_REQ:
/*
- * to change the list, we atomically remove, reinit
- * with new value and add, then see if the extremal
- * changed
+ * To change the list, atomically remove, reinit with new value
+ * and add, then see if the aggregate has changed.
*/
plist_del(node, &c->list);
/* fall through */
@@ -252,16 +135,14 @@ int pm_qos_update_target(struct pm_qos_constraints *c, struct plist_node *node,
spin_unlock_irqrestore(&pm_qos_lock, flags);
trace_pm_qos_update_target(action, prev_value, curr_value);
- if (prev_value != curr_value) {
- ret = 1;
- if (c->notifiers)
- blocking_notifier_call_chain(c->notifiers,
- (unsigned long)curr_value,
- NULL);
- } else {
- ret = 0;
- }
- return ret;
+
+ if (prev_value == curr_value)
+ return 0;
+
+ if (c->notifiers)
+ blocking_notifier_call_chain(c->notifiers, curr_value, NULL);
+
+ return 1;
}
/**
@@ -283,14 +164,12 @@ static void pm_qos_flags_remove_req(struct pm_qos_flags *pqf,
/**
* pm_qos_update_flags - Update a set of PM QoS flags.
- * @pqf: Set of flags to update.
+ * @pqf: Set of PM QoS flags to update.
* @req: Request to add to the set, to modify, or to remove from the set.
* @action: Action to take on the set.
* @val: Value of the request to add or modify.
*
- * Update the given set of PM QoS flags and call notifiers if the aggregate
- * value has changed. Returns 1 if the aggregate constraint value has changed,
- * 0 otherwise.
+ * Return: 1 if the aggregate constraint value has changed, 0 otherwise.
*/
bool pm_qos_update_flags(struct pm_qos_flags *pqf,
struct pm_qos_flags_request *req,
@@ -326,288 +205,180 @@ bool pm_qos_update_flags(struct pm_qos_flags *pqf,
spin_unlock_irqrestore(&pm_qos_lock, irqflags);
trace_pm_qos_update_flags(action, prev_value, curr_value);
+
return prev_value != curr_value;
}
+#ifdef CONFIG_CPU_IDLE
+/* Definitions related to the CPU latency QoS. */
+
+static struct pm_qos_constraints cpu_latency_constraints = {
+ .list = PLIST_HEAD_INIT(cpu_latency_constraints.list),
+ .target_value = PM_QOS_CPU_LATENCY_DEFAULT_VALUE,
+ .default_value = PM_QOS_CPU_LATENCY_DEFAULT_VALUE,
+ .no_constraint_value = PM_QOS_CPU_LATENCY_DEFAULT_VALUE,
+ .type = PM_QOS_MIN,
+};
+
/**
- * pm_qos_request - returns current system wide qos expectation
- * @pm_qos_class: identification of which qos value is requested
- *
- * This function returns the current target value.
+ * cpu_latency_qos_limit - Return current system-wide CPU latency QoS limit.
*/
-int pm_qos_request(int pm_qos_class)
+s32 cpu_latency_qos_limit(void)
{
- return pm_qos_read_value(pm_qos_array[pm_qos_class]->constraints);
-}
-EXPORT_SYMBOL_GPL(pm_qos_request);
-
-int pm_qos_request_active(struct pm_qos_request *req)
-{
- return req->pm_qos_class != 0;
-}
-EXPORT_SYMBOL_GPL(pm_qos_request_active);
-
-static void __pm_qos_update_request(struct pm_qos_request *req,
- s32 new_value)
-{
- trace_pm_qos_update_request(req->pm_qos_class, new_value);
-
- if (new_value != req->node.prio)
- pm_qos_update_target(
- pm_qos_array[req->pm_qos_class]->constraints,
- &req->node, PM_QOS_UPDATE_REQ, new_value);
+ return pm_qos_read_value(&cpu_latency_constraints);
}
/**
- * pm_qos_work_fn - the timeout handler of pm_qos_update_request_timeout
- * @work: work struct for the delayed work (timeout)
+ * cpu_latency_qos_request_active - Check the given PM QoS request.
+ * @req: PM QoS request to check.
*
- * This cancels the timeout request by falling back to the default at timeout.
+ * Return: 'true' if @req has been added to the CPU latency QoS list, 'false'
+ * otherwise.
*/
-static void pm_qos_work_fn(struct work_struct *work)
+bool cpu_latency_qos_request_active(struct pm_qos_request *req)
{
- struct pm_qos_request *req = container_of(to_delayed_work(work),
- struct pm_qos_request,
- work);
+ return req->qos == &cpu_latency_constraints;
+}
+EXPORT_SYMBOL_GPL(cpu_latency_qos_request_active);
- __pm_qos_update_request(req, PM_QOS_DEFAULT_VALUE);
+static void cpu_latency_qos_apply(struct pm_qos_request *req,
+ enum pm_qos_req_action action, s32 value)
+{
+ int ret = pm_qos_update_target(req->qos, &req->node, action, value);
+ if (ret > 0)
+ wake_up_all_idle_cpus();
}
/**
- * pm_qos_add_request - inserts new qos request into the list
- * @req: pointer to a preallocated handle
- * @pm_qos_class: identifies which list of qos request to use
- * @value: defines the qos request
+ * cpu_latency_qos_add_request - Add new CPU latency QoS request.
+ * @req: Pointer to a preallocated handle.
+ * @value: Requested constraint value.
*
- * This function inserts a new entry in the pm_qos_class list of requested qos
- * performance characteristics. It recomputes the aggregate QoS expectations
- * for the pm_qos_class of parameters and initializes the pm_qos_request
- * handle. Caller needs to save this handle for later use in updates and
- * removal.
+ * Use @value to initialize the request handle pointed to by @req, insert it as
+ * a new entry to the CPU latency QoS list and recompute the effective QoS
+ * constraint for that list.
+ *
+ * Callers need to save the handle for later use in updates and removal of the
+ * QoS request represented by it.
*/
-
-void pm_qos_add_request(struct pm_qos_request *req,
- int pm_qos_class, s32 value)
-{
- if (!req) /*guard against callers passing in null */
- return;
-
- if (pm_qos_request_active(req)) {
- WARN(1, KERN_ERR "pm_qos_add_request() called for already added request\n");
- return;
- }
- req->pm_qos_class = pm_qos_class;
- INIT_DELAYED_WORK(&req->work, pm_qos_work_fn);
- trace_pm_qos_add_request(pm_qos_class, value);
- pm_qos_update_target(pm_qos_array[pm_qos_class]->constraints,
- &req->node, PM_QOS_ADD_REQ, value);
-}
-EXPORT_SYMBOL_GPL(pm_qos_add_request);
-
-/**
- * pm_qos_update_request - modifies an existing qos request
- * @req : handle to list element holding a pm_qos request to use
- * @value: defines the qos request
- *
- * Updates an existing qos request for the pm_qos_class of parameters along
- * with updating the target pm_qos_class value.
- *
- * Attempts are made to make this code callable on hot code paths.
- */
-void pm_qos_update_request(struct pm_qos_request *req,
- s32 new_value)
-{
- if (!req) /*guard against callers passing in null */
- return;
-
- if (!pm_qos_request_active(req)) {
- WARN(1, KERN_ERR "pm_qos_update_request() called for unknown object\n");
- return;
- }
-
- cancel_delayed_work_sync(&req->work);
- __pm_qos_update_request(req, new_value);
-}
-EXPORT_SYMBOL_GPL(pm_qos_update_request);
-
-/**
- * pm_qos_update_request_timeout - modifies an existing qos request temporarily.
- * @req : handle to list element holding a pm_qos request to use
- * @new_value: defines the temporal qos request
- * @timeout_us: the effective duration of this qos request in usecs.
- *
- * After timeout_us, this qos request is cancelled automatically.
- */
-void pm_qos_update_request_timeout(struct pm_qos_request *req, s32 new_value,
- unsigned long timeout_us)
+void cpu_latency_qos_add_request(struct pm_qos_request *req, s32 value)
{
if (!req)
return;
- if (WARN(!pm_qos_request_active(req),
- "%s called for unknown object.", __func__))
- return;
- cancel_delayed_work_sync(&req->work);
-
- trace_pm_qos_update_request_timeout(req->pm_qos_class,
- new_value, timeout_us);
- if (new_value != req->node.prio)
- pm_qos_update_target(
- pm_qos_array[req->pm_qos_class]->constraints,
- &req->node, PM_QOS_UPDATE_REQ, new_value);
-
- schedule_delayed_work(&req->work, usecs_to_jiffies(timeout_us));
-}
-
-/**
- * pm_qos_remove_request - modifies an existing qos request
- * @req: handle to request list element
- *
- * Will remove pm qos request from the list of constraints and
- * recompute the current target value for the pm_qos_class. Call this
- * on slow code paths.
- */
-void pm_qos_remove_request(struct pm_qos_request *req)
-{
- if (!req) /*guard against callers passing in null */
- return;
- /* silent return to keep pcm code cleaner */
-
- if (!pm_qos_request_active(req)) {
- WARN(1, KERN_ERR "pm_qos_remove_request() called for unknown object\n");
+ if (cpu_latency_qos_request_active(req)) {
+ WARN(1, KERN_ERR "%s called for already added request\n", __func__);
return;
}
- cancel_delayed_work_sync(&req->work);
+ trace_pm_qos_add_request(value);
- trace_pm_qos_remove_request(req->pm_qos_class, PM_QOS_DEFAULT_VALUE);
- pm_qos_update_target(pm_qos_array[req->pm_qos_class]->constraints,
- &req->node, PM_QOS_REMOVE_REQ,
- PM_QOS_DEFAULT_VALUE);
+ req->qos = &cpu_latency_constraints;
+ cpu_latency_qos_apply(req, PM_QOS_ADD_REQ, value);
+}
+EXPORT_SYMBOL_GPL(cpu_latency_qos_add_request);
+
+/**
+ * cpu_latency_qos_update_request - Modify existing CPU latency QoS request.
+ * @req : QoS request to update.
+ * @new_value: New requested constraint value.
+ *
+ * Use @new_value to update the QoS request represented by @req in the CPU
+ * latency QoS list along with updating the effective constraint value for that
+ * list.
+ */
+void cpu_latency_qos_update_request(struct pm_qos_request *req, s32 new_value)
+{
+ if (!req)
+ return;
+
+ if (!cpu_latency_qos_request_active(req)) {
+ WARN(1, KERN_ERR "%s called for unknown object\n", __func__);
+ return;
+ }
+
+ trace_pm_qos_update_request(new_value);
+
+ if (new_value == req->node.prio)
+ return;
+
+ cpu_latency_qos_apply(req, PM_QOS_UPDATE_REQ, new_value);
+}
+EXPORT_SYMBOL_GPL(cpu_latency_qos_update_request);
+
+/**
+ * cpu_latency_qos_remove_request - Remove existing CPU latency QoS request.
+ * @req: QoS request to remove.
+ *
+ * Remove the CPU latency QoS request represented by @req from the CPU latency
+ * QoS list along with updating the effective constraint value for that list.
+ */
+void cpu_latency_qos_remove_request(struct pm_qos_request *req)
+{
+ if (!req)
+ return;
+
+ if (!cpu_latency_qos_request_active(req)) {
+ WARN(1, KERN_ERR "%s called for unknown object\n", __func__);
+ return;
+ }
+
+ trace_pm_qos_remove_request(PM_QOS_DEFAULT_VALUE);
+
+ cpu_latency_qos_apply(req, PM_QOS_REMOVE_REQ, PM_QOS_DEFAULT_VALUE);
memset(req, 0, sizeof(*req));
}
-EXPORT_SYMBOL_GPL(pm_qos_remove_request);
+EXPORT_SYMBOL_GPL(cpu_latency_qos_remove_request);
-/**
- * pm_qos_add_notifier - sets notification entry for changes to target value
- * @pm_qos_class: identifies which qos target changes should be notified.
- * @notifier: notifier block managed by caller.
- *
- * will register the notifier into a notification chain that gets called
- * upon changes to the pm_qos_class target value.
- */
-int pm_qos_add_notifier(int pm_qos_class, struct notifier_block *notifier)
-{
- int retval;
+/* User space interface to the CPU latency QoS via misc device. */
- retval = blocking_notifier_chain_register(
- pm_qos_array[pm_qos_class]->constraints->notifiers,
- notifier);
-
- return retval;
-}
-EXPORT_SYMBOL_GPL(pm_qos_add_notifier);
-
-/**
- * pm_qos_remove_notifier - deletes notification entry from chain.
- * @pm_qos_class: identifies which qos target changes are notified.
- * @notifier: notifier block to be removed.
- *
- * will remove the notifier from the notification chain that gets called
- * upon changes to the pm_qos_class target value.
- */
-int pm_qos_remove_notifier(int pm_qos_class, struct notifier_block *notifier)
-{
- int retval;
-
- retval = blocking_notifier_chain_unregister(
- pm_qos_array[pm_qos_class]->constraints->notifiers,
- notifier);
-
- return retval;
-}
-EXPORT_SYMBOL_GPL(pm_qos_remove_notifier);
-
-/* User space interface to PM QoS classes via misc devices */
-static int register_pm_qos_misc(struct pm_qos_object *qos, struct dentry *d)
-{
- qos->pm_qos_power_miscdev.minor = MISC_DYNAMIC_MINOR;
- qos->pm_qos_power_miscdev.name = qos->name;
- qos->pm_qos_power_miscdev.fops = &pm_qos_power_fops;
-
- debugfs_create_file(qos->name, S_IRUGO, d, (void *)qos,
- &pm_qos_debug_fops);
-
- return misc_register(&qos->pm_qos_power_miscdev);
-}
-
-static int find_pm_qos_object_by_minor(int minor)
-{
- int pm_qos_class;
-
- for (pm_qos_class = PM_QOS_CPU_DMA_LATENCY;
- pm_qos_class < PM_QOS_NUM_CLASSES; pm_qos_class++) {
- if (minor ==
- pm_qos_array[pm_qos_class]->pm_qos_power_miscdev.minor)
- return pm_qos_class;
- }
- return -1;
-}
-
-static int pm_qos_power_open(struct inode *inode, struct file *filp)
-{
- long pm_qos_class;
-
- pm_qos_class = find_pm_qos_object_by_minor(iminor(inode));
- if (pm_qos_class >= PM_QOS_CPU_DMA_LATENCY) {
- struct pm_qos_request *req = kzalloc(sizeof(*req), GFP_KERNEL);
- if (!req)
- return -ENOMEM;
-
- pm_qos_add_request(req, pm_qos_class, PM_QOS_DEFAULT_VALUE);
- filp->private_data = req;
-
- return 0;
- }
- return -EPERM;
-}
-
-static int pm_qos_power_release(struct inode *inode, struct file *filp)
+static int cpu_latency_qos_open(struct inode *inode, struct file *filp)
{
struct pm_qos_request *req;
- req = filp->private_data;
- pm_qos_remove_request(req);
+ req = kzalloc(sizeof(*req), GFP_KERNEL);
+ if (!req)
+ return -ENOMEM;
+
+ cpu_latency_qos_add_request(req, PM_QOS_DEFAULT_VALUE);
+ filp->private_data = req;
+
+ return 0;
+}
+
+static int cpu_latency_qos_release(struct inode *inode, struct file *filp)
+{
+ struct pm_qos_request *req = filp->private_data;
+
+ filp->private_data = NULL;
+
+ cpu_latency_qos_remove_request(req);
kfree(req);
return 0;
}
-
-static ssize_t pm_qos_power_read(struct file *filp, char __user *buf,
- size_t count, loff_t *f_pos)
+static ssize_t cpu_latency_qos_read(struct file *filp, char __user *buf,
+ size_t count, loff_t *f_pos)
{
- s32 value;
- unsigned long flags;
struct pm_qos_request *req = filp->private_data;
+ unsigned long flags;
+ s32 value;
- if (!req)
- return -EINVAL;
- if (!pm_qos_request_active(req))
+ if (!req || !cpu_latency_qos_request_active(req))
return -EINVAL;
spin_lock_irqsave(&pm_qos_lock, flags);
- value = pm_qos_get_value(pm_qos_array[req->pm_qos_class]->constraints);
+ value = pm_qos_get_value(&cpu_latency_constraints);
spin_unlock_irqrestore(&pm_qos_lock, flags);
return simple_read_from_buffer(buf, count, f_pos, &value, sizeof(s32));
}
-static ssize_t pm_qos_power_write(struct file *filp, const char __user *buf,
- size_t count, loff_t *f_pos)
+static ssize_t cpu_latency_qos_write(struct file *filp, const char __user *buf,
+ size_t count, loff_t *f_pos)
{
s32 value;
- struct pm_qos_request *req;
if (count == sizeof(s32)) {
if (copy_from_user(&value, buf, sizeof(s32)))
@@ -620,36 +391,38 @@ static ssize_t pm_qos_power_write(struct file *filp, const char __user *buf,
return ret;
}
- req = filp->private_data;
- pm_qos_update_request(req, value);
+ cpu_latency_qos_update_request(filp->private_data, value);
return count;
}
+static const struct file_operations cpu_latency_qos_fops = {
+ .write = cpu_latency_qos_write,
+ .read = cpu_latency_qos_read,
+ .open = cpu_latency_qos_open,
+ .release = cpu_latency_qos_release,
+ .llseek = noop_llseek,
+};
-static int __init pm_qos_power_init(void)
+static struct miscdevice cpu_latency_qos_miscdev = {
+ .minor = MISC_DYNAMIC_MINOR,
+ .name = "cpu_dma_latency",
+ .fops = &cpu_latency_qos_fops,
+};
+
+static int __init cpu_latency_qos_init(void)
{
- int ret = 0;
- int i;
- struct dentry *d;
+ int ret;
- BUILD_BUG_ON(ARRAY_SIZE(pm_qos_array) != PM_QOS_NUM_CLASSES);
-
- d = debugfs_create_dir("pm_qos", NULL);
-
- for (i = PM_QOS_CPU_DMA_LATENCY; i < PM_QOS_NUM_CLASSES; i++) {
- ret = register_pm_qos_misc(pm_qos_array[i], d);
- if (ret < 0) {
- pr_err("%s: %s setup failed\n",
- __func__, pm_qos_array[i]->name);
- return ret;
- }
- }
+ ret = misc_register(&cpu_latency_qos_miscdev);
+ if (ret < 0)
+ pr_err("%s: %s setup failed\n", __func__,
+ cpu_latency_qos_miscdev.name);
return ret;
}
-
-late_initcall(pm_qos_power_init);
+late_initcall(cpu_latency_qos_init);
+#endif /* CONFIG_CPU_IDLE */
/* Definitions related to the frequency QoS below. */
diff --git a/kernel/power/user.c b/kernel/power/user.c
index 7743895..58ed947 100644
--- a/kernel/power/user.c
+++ b/kernel/power/user.c
@@ -409,21 +409,7 @@ snapshot_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
switch (cmd) {
case SNAPSHOT_GET_IMAGE_SIZE:
case SNAPSHOT_AVAIL_SWAP_SIZE:
- case SNAPSHOT_ALLOC_SWAP_PAGE: {
- compat_loff_t __user *uoffset = compat_ptr(arg);
- loff_t offset;
- mm_segment_t old_fs;
- int err;
-
- old_fs = get_fs();
- set_fs(KERNEL_DS);
- err = snapshot_ioctl(file, cmd, (unsigned long) &offset);
- set_fs(old_fs);
- if (!err && put_user(offset, uoffset))
- err = -EFAULT;
- return err;
- }
-
+ case SNAPSHOT_ALLOC_SWAP_PAGE:
case SNAPSHOT_CREATE_IMAGE:
return snapshot_ioctl(file, cmd,
(unsigned long) compat_ptr(arg));
diff --git a/mm/madvise.c b/mm/madvise.c
index 43b47d3..4bb30ed 100644
--- a/mm/madvise.c
+++ b/mm/madvise.c
@@ -335,12 +335,14 @@ static int madvise_cold_or_pageout_pte_range(pmd_t *pmd,
}
page = pmd_page(orig_pmd);
+
+ /* Do not interfere with other mappings of this page */
+ if (page_mapcount(page) != 1)
+ goto huge_unlock;
+
if (next - addr != HPAGE_PMD_SIZE) {
int err;
- if (page_mapcount(page) != 1)
- goto huge_unlock;
-
get_page(page);
spin_unlock(ptl);
lock_page(page);
@@ -426,6 +428,10 @@ static int madvise_cold_or_pageout_pte_range(pmd_t *pmd,
continue;
}
+ /* Do not interfere with other mappings of this page */
+ if (page_mapcount(page) != 1)
+ continue;
+
VM_BUG_ON_PAGE(PageTransCompound(page), page);
if (pte_young(ptent)) {
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 2058b8d..7a4bd8b 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -2297,28 +2297,41 @@ static void high_work_func(struct work_struct *work)
#define MEMCG_DELAY_SCALING_SHIFT 14
/*
- * Scheduled by try_charge() to be executed from the userland return path
- * and reclaims memory over the high limit.
+ * Get the number of jiffies that we should penalise a mischievous cgroup which
+ * is exceeding its memory.high by checking both it and its ancestors.
*/
-void mem_cgroup_handle_over_high(void)
+static unsigned long calculate_high_delay(struct mem_cgroup *memcg,
+ unsigned int nr_pages)
{
- unsigned long usage, high, clamped_high;
- unsigned long pflags;
- unsigned long penalty_jiffies, overage;
- unsigned int nr_pages = current->memcg_nr_pages_over_high;
- struct mem_cgroup *memcg;
+ unsigned long penalty_jiffies;
+ u64 max_overage = 0;
- if (likely(!nr_pages))
- return;
+ do {
+ unsigned long usage, high;
+ u64 overage;
- memcg = get_mem_cgroup_from_mm(current->mm);
- reclaim_high(memcg, nr_pages, GFP_KERNEL);
- current->memcg_nr_pages_over_high = 0;
+ usage = page_counter_read(&memcg->memory);
+ high = READ_ONCE(memcg->high);
+
+ /*
+ * Prevent division by 0 in overage calculation by acting as if
+ * it was a threshold of 1 page
+ */
+ high = max(high, 1UL);
+
+ overage = usage - high;
+ overage <<= MEMCG_DELAY_PRECISION_SHIFT;
+ overage = div64_u64(overage, high);
+
+ if (overage > max_overage)
+ max_overage = overage;
+ } while ((memcg = parent_mem_cgroup(memcg)) &&
+ !mem_cgroup_is_root(memcg));
+
+ if (!max_overage)
+ return 0;
/*
- * memory.high is breached and reclaim is unable to keep up. Throttle
- * allocators proactively to slow down excessive growth.
- *
* We use overage compared to memory.high to calculate the number of
* jiffies to sleep (penalty_jiffies). Ideally this value should be
* fairly lenient on small overages, and increasingly harsh when the
@@ -2326,24 +2339,9 @@ void mem_cgroup_handle_over_high(void)
* its crazy behaviour, so we exponentially increase the delay based on
* overage amount.
*/
-
- usage = page_counter_read(&memcg->memory);
- high = READ_ONCE(memcg->high);
-
- if (usage <= high)
- goto out;
-
- /*
- * Prevent division by 0 in overage calculation by acting as if it was a
- * threshold of 1 page
- */
- clamped_high = max(high, 1UL);
-
- overage = div_u64((u64)(usage - high) << MEMCG_DELAY_PRECISION_SHIFT,
- clamped_high);
-
- penalty_jiffies = ((u64)overage * overage * HZ)
- >> (MEMCG_DELAY_PRECISION_SHIFT + MEMCG_DELAY_SCALING_SHIFT);
+ penalty_jiffies = max_overage * max_overage * HZ;
+ penalty_jiffies >>= MEMCG_DELAY_PRECISION_SHIFT;
+ penalty_jiffies >>= MEMCG_DELAY_SCALING_SHIFT;
/*
* Factor in the task's own contribution to the overage, such that four
@@ -2360,7 +2358,32 @@ void mem_cgroup_handle_over_high(void)
* application moving forwards and also permit diagnostics, albeit
* extremely slowly.
*/
- penalty_jiffies = min(penalty_jiffies, MEMCG_MAX_HIGH_DELAY_JIFFIES);
+ return min(penalty_jiffies, MEMCG_MAX_HIGH_DELAY_JIFFIES);
+}
+
+/*
+ * Scheduled by try_charge() to be executed from the userland return path
+ * and reclaims memory over the high limit.
+ */
+void mem_cgroup_handle_over_high(void)
+{
+ unsigned long penalty_jiffies;
+ unsigned long pflags;
+ unsigned int nr_pages = current->memcg_nr_pages_over_high;
+ struct mem_cgroup *memcg;
+
+ if (likely(!nr_pages))
+ return;
+
+ memcg = get_mem_cgroup_from_mm(current->mm);
+ reclaim_high(memcg, nr_pages, GFP_KERNEL);
+ current->memcg_nr_pages_over_high = 0;
+
+ /*
+ * memory.high is breached and reclaim is unable to keep up. Throttle
+ * allocators proactively to slow down excessive growth.
+ */
+ penalty_jiffies = calculate_high_delay(memcg, nr_pages);
/*
* Don't sleep if the amount of jiffies this memcg owes us is so low
@@ -4027,7 +4050,7 @@ static void __mem_cgroup_usage_unregister_event(struct mem_cgroup *memcg,
struct mem_cgroup_thresholds *thresholds;
struct mem_cgroup_threshold_ary *new;
unsigned long usage;
- int i, j, size;
+ int i, j, size, entries;
mutex_lock(&memcg->thresholds_lock);
@@ -4047,14 +4070,20 @@ static void __mem_cgroup_usage_unregister_event(struct mem_cgroup *memcg,
__mem_cgroup_threshold(memcg, type == _MEMSWAP);
/* Calculate new number of threshold */
- size = 0;
+ size = entries = 0;
for (i = 0; i < thresholds->primary->size; i++) {
if (thresholds->primary->entries[i].eventfd != eventfd)
size++;
+ else
+ entries++;
}
new = thresholds->spare;
+ /* If no items related to eventfd have been cleared, nothing to do */
+ if (!entries)
+ goto unlock;
+
/* Set thresholds array to NULL if we don't have thresholds */
if (!size) {
kfree(new);
diff --git a/mm/mmu_notifier.c b/mm/mmu_notifier.c
index ef3973a..06852b8 100644
--- a/mm/mmu_notifier.c
+++ b/mm/mmu_notifier.c
@@ -307,7 +307,8 @@ static void mn_hlist_release(struct mmu_notifier_subscriptions *subscriptions,
* ->release returns.
*/
id = srcu_read_lock(&srcu);
- hlist_for_each_entry_rcu(subscription, &subscriptions->list, hlist)
+ hlist_for_each_entry_rcu(subscription, &subscriptions->list, hlist,
+ srcu_read_lock_held(&srcu))
/*
* If ->release runs before mmu_notifier_unregister it must be
* handled, as it's the only way for the driver to flush all
@@ -370,7 +371,8 @@ int __mmu_notifier_clear_flush_young(struct mm_struct *mm,
id = srcu_read_lock(&srcu);
hlist_for_each_entry_rcu(subscription,
- &mm->notifier_subscriptions->list, hlist) {
+ &mm->notifier_subscriptions->list, hlist,
+ srcu_read_lock_held(&srcu)) {
if (subscription->ops->clear_flush_young)
young |= subscription->ops->clear_flush_young(
subscription, mm, start, end);
@@ -389,7 +391,8 @@ int __mmu_notifier_clear_young(struct mm_struct *mm,
id = srcu_read_lock(&srcu);
hlist_for_each_entry_rcu(subscription,
- &mm->notifier_subscriptions->list, hlist) {
+ &mm->notifier_subscriptions->list, hlist,
+ srcu_read_lock_held(&srcu)) {
if (subscription->ops->clear_young)
young |= subscription->ops->clear_young(subscription,
mm, start, end);
@@ -407,7 +410,8 @@ int __mmu_notifier_test_young(struct mm_struct *mm,
id = srcu_read_lock(&srcu);
hlist_for_each_entry_rcu(subscription,
- &mm->notifier_subscriptions->list, hlist) {
+ &mm->notifier_subscriptions->list, hlist,
+ srcu_read_lock_held(&srcu)) {
if (subscription->ops->test_young) {
young = subscription->ops->test_young(subscription, mm,
address);
@@ -428,7 +432,8 @@ void __mmu_notifier_change_pte(struct mm_struct *mm, unsigned long address,
id = srcu_read_lock(&srcu);
hlist_for_each_entry_rcu(subscription,
- &mm->notifier_subscriptions->list, hlist) {
+ &mm->notifier_subscriptions->list, hlist,
+ srcu_read_lock_held(&srcu)) {
if (subscription->ops->change_pte)
subscription->ops->change_pte(subscription, mm, address,
pte);
@@ -476,7 +481,8 @@ static int mn_hlist_invalidate_range_start(
int id;
id = srcu_read_lock(&srcu);
- hlist_for_each_entry_rcu(subscription, &subscriptions->list, hlist) {
+ hlist_for_each_entry_rcu(subscription, &subscriptions->list, hlist,
+ srcu_read_lock_held(&srcu)) {
const struct mmu_notifier_ops *ops = subscription->ops;
if (ops->invalidate_range_start) {
@@ -528,7 +534,8 @@ mn_hlist_invalidate_end(struct mmu_notifier_subscriptions *subscriptions,
int id;
id = srcu_read_lock(&srcu);
- hlist_for_each_entry_rcu(subscription, &subscriptions->list, hlist) {
+ hlist_for_each_entry_rcu(subscription, &subscriptions->list, hlist,
+ srcu_read_lock_held(&srcu)) {
/*
* Call invalidate_range here too to avoid the need for the
* subsystem of having to register an invalidate_range_end
@@ -582,7 +589,8 @@ void __mmu_notifier_invalidate_range(struct mm_struct *mm,
id = srcu_read_lock(&srcu);
hlist_for_each_entry_rcu(subscription,
- &mm->notifier_subscriptions->list, hlist) {
+ &mm->notifier_subscriptions->list, hlist,
+ srcu_read_lock_held(&srcu)) {
if (subscription->ops->invalidate_range)
subscription->ops->invalidate_range(subscription, mm,
start, end);
@@ -714,7 +722,8 @@ find_get_mmu_notifier(struct mm_struct *mm, const struct mmu_notifier_ops *ops)
spin_lock(&mm->notifier_subscriptions->lock);
hlist_for_each_entry_rcu(subscription,
- &mm->notifier_subscriptions->list, hlist) {
+ &mm->notifier_subscriptions->list, hlist,
+ lockdep_is_held(&mm->notifier_subscriptions->lock)) {
if (subscription->ops != ops)
continue;
diff --git a/mm/nommu.c b/mm/nommu.c
index bd2b4e5e..318df4e 100644
--- a/mm/nommu.c
+++ b/mm/nommu.c
@@ -370,10 +370,14 @@ void vm_unmap_aliases(void)
EXPORT_SYMBOL_GPL(vm_unmap_aliases);
/*
- * Implement a stub for vmalloc_sync_all() if the architecture chose not to
- * have one.
+ * Implement a stub for vmalloc_sync_[un]mapping() if the architecture
+ * chose not to have one.
*/
-void __weak vmalloc_sync_all(void)
+void __weak vmalloc_sync_mappings(void)
+{
+}
+
+void __weak vmalloc_sync_unmappings(void)
{
}
diff --git a/mm/slub.c b/mm/slub.c
index 17dc00e..6589b41 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -1973,8 +1973,6 @@ static void *get_partial(struct kmem_cache *s, gfp_t flags, int node,
if (node == NUMA_NO_NODE)
searchnode = numa_mem_id();
- else if (!node_present_pages(node))
- searchnode = node_to_mem_node(node);
object = get_partial_node(s, get_node(s, searchnode), c, flags);
if (object || node != NUMA_NO_NODE)
@@ -2563,17 +2561,27 @@ static void *___slab_alloc(struct kmem_cache *s, gfp_t gfpflags, int node,
struct page *page;
page = c->page;
- if (!page)
+ if (!page) {
+ /*
+ * if the node is not online or has no normal memory, just
+ * ignore the node constraint
+ */
+ if (unlikely(node != NUMA_NO_NODE &&
+ !node_state(node, N_NORMAL_MEMORY)))
+ node = NUMA_NO_NODE;
goto new_slab;
+ }
redo:
if (unlikely(!node_match(page, node))) {
- int searchnode = node;
-
- if (node != NUMA_NO_NODE && !node_present_pages(node))
- searchnode = node_to_mem_node(node);
-
- if (unlikely(!node_match(page, searchnode))) {
+ /*
+ * same as above but node_match() being false already
+ * implies node != NUMA_NO_NODE
+ */
+ if (!node_state(node, N_NORMAL_MEMORY)) {
+ node = NUMA_NO_NODE;
+ goto redo;
+ } else {
stat(s, ALLOC_NODE_MISMATCH);
deactivate_slab(s, page, c->freelist, c);
goto new_slab;
@@ -2997,11 +3005,13 @@ static __always_inline void do_slab_free(struct kmem_cache *s,
barrier();
if (likely(page == c->page)) {
- set_freepointer(s, tail_obj, c->freelist);
+ void **freelist = READ_ONCE(c->freelist);
+
+ set_freepointer(s, tail_obj, freelist);
if (unlikely(!this_cpu_cmpxchg_double(
s->cpu_slab->freelist, s->cpu_slab->tid,
- c->freelist, tid,
+ freelist, tid,
head, next_tid(tid)))) {
note_cmpxchg_failure("slab_free", s, tid);
@@ -3175,6 +3185,15 @@ int kmem_cache_alloc_bulk(struct kmem_cache *s, gfp_t flags, size_t size,
if (unlikely(!object)) {
/*
+ * We may have removed an object from c->freelist using
+ * the fastpath in the previous iteration; in that case,
+ * c->tid has not been bumped yet.
+ * Since ___slab_alloc() may reenable interrupts while
+ * allocating memory, we should bump c->tid now.
+ */
+ c->tid = next_tid(c->tid);
+
+ /*
* Invoking slow path likely have side-effect
* of re-populating per CPU c->freelist
*/
diff --git a/mm/sparse.c b/mm/sparse.c
index 596b2a4..aadb729 100644
--- a/mm/sparse.c
+++ b/mm/sparse.c
@@ -734,6 +734,7 @@ static void section_deactivate(unsigned long pfn, unsigned long nr_pages,
struct mem_section *ms = __pfn_to_section(pfn);
bool section_is_early = early_section(ms);
struct page *memmap = NULL;
+ bool empty;
unsigned long *subsection_map = ms->usage
? &ms->usage->subsection_map[0] : NULL;
@@ -764,7 +765,8 @@ static void section_deactivate(unsigned long pfn, unsigned long nr_pages,
* For 2/ and 3/ the SPARSEMEM_VMEMMAP={y,n} cases are unified
*/
bitmap_xor(subsection_map, map, subsection_map, SUBSECTIONS_PER_SECTION);
- if (bitmap_empty(subsection_map, SUBSECTIONS_PER_SECTION)) {
+ empty = bitmap_empty(subsection_map, SUBSECTIONS_PER_SECTION);
+ if (empty) {
unsigned long section_nr = pfn_to_section_nr(pfn);
/*
@@ -779,13 +781,15 @@ static void section_deactivate(unsigned long pfn, unsigned long nr_pages,
ms->usage = NULL;
}
memmap = sparse_decode_mem_map(ms->section_mem_map, section_nr);
- ms->section_mem_map = (unsigned long)NULL;
}
if (section_is_early && memmap)
free_map_bootmem(memmap);
else
depopulate_section_memmap(pfn, nr_pages, altmap);
+
+ if (empty)
+ ms->section_mem_map = (unsigned long)NULL;
}
static struct page * __meminit section_activate(int nid, unsigned long pfn,
diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 1f46c3b..6b8eeb0 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -1295,7 +1295,7 @@ static bool __purge_vmap_area_lazy(unsigned long start, unsigned long end)
* First make sure the mappings are removed from all page-tables
* before they are freed.
*/
- vmalloc_sync_all();
+ vmalloc_sync_unmappings();
/*
* TODO: to calculate a flush range without looping.
@@ -3128,16 +3128,19 @@ int remap_vmalloc_range(struct vm_area_struct *vma, void *addr,
EXPORT_SYMBOL(remap_vmalloc_range);
/*
- * Implement a stub for vmalloc_sync_all() if the architecture chose not to
- * have one.
+ * Implement stubs for vmalloc_sync_[un]mappings () if the architecture chose
+ * not to have one.
*
* The purpose of this function is to make sure the vmalloc area
* mappings are identical in all page-tables in the system.
*/
-void __weak vmalloc_sync_all(void)
+void __weak vmalloc_sync_mappings(void)
{
}
+void __weak vmalloc_sync_unmappings(void)
+{
+}
static int f(pte_t *pte, unsigned long addr, void *data)
{
diff --git a/net/socket.c b/net/socket.c
index b79a05d..2eecf15 100644
--- a/net/socket.c
+++ b/net/socket.c
@@ -1707,7 +1707,8 @@ SYSCALL_DEFINE2(listen, int, fd, int, backlog)
int __sys_accept4_file(struct file *file, unsigned file_flags,
struct sockaddr __user *upeer_sockaddr,
- int __user *upeer_addrlen, int flags)
+ int __user *upeer_addrlen, int flags,
+ unsigned long nofile)
{
struct socket *sock, *newsock;
struct file *newfile;
@@ -1738,7 +1739,7 @@ int __sys_accept4_file(struct file *file, unsigned file_flags,
*/
__module_get(newsock->ops->owner);
- newfd = get_unused_fd_flags(flags);
+ newfd = __get_unused_fd_flags(flags, nofile);
if (unlikely(newfd < 0)) {
err = newfd;
sock_release(newsock);
@@ -1807,7 +1808,8 @@ int __sys_accept4(int fd, struct sockaddr __user *upeer_sockaddr,
f = fdget(fd);
if (f.file) {
ret = __sys_accept4_file(f.file, 0, upeer_sockaddr,
- upeer_addrlen, flags);
+ upeer_addrlen, flags,
+ rlimit(RLIMIT_NOFILE));
if (f.flags)
fput(f.file);
}
diff --git a/scripts/Kconfig.include b/scripts/Kconfig.include
index 85334dc..496d11c 100644
--- a/scripts/Kconfig.include
+++ b/scripts/Kconfig.include
@@ -44,3 +44,10 @@
# gcc version including patch level
gcc-version := $(shell,$(srctree)/scripts/gcc-version.sh $(CC))
+
+# machine bit flags
+# $(m32-flag): -m32 if the compiler supports it, or an empty string otherwise.
+# $(m64-flag): -m64 if the compiler supports it, or an empty string otherwise.
+cc-option-bit = $(if-success,$(CC) -Werror $(1) -E -x c /dev/null -o /dev/null,$(1))
+m32-flag := $(cc-option-bit,-m32)
+m64-flag := $(cc-option-bit,-m64)
diff --git a/scripts/Makefile.extrawarn b/scripts/Makefile.extrawarn
index ecddf83..ca08f2f 100644
--- a/scripts/Makefile.extrawarn
+++ b/scripts/Makefile.extrawarn
@@ -48,6 +48,7 @@
KBUILD_CFLAGS += -Wno-format
KBUILD_CFLAGS += -Wno-sign-compare
KBUILD_CFLAGS += -Wno-format-zero-length
+KBUILD_CFLAGS += $(call cc-disable-warning, pointer-to-enum-cast)
endif
endif
diff --git a/scripts/export_report.pl b/scripts/export_report.pl
index 548330e..feb3d55 100755
--- a/scripts/export_report.pl
+++ b/scripts/export_report.pl
@@ -94,7 +94,7 @@
#
while ( <$module_symvers> ) {
chomp;
- my (undef, $symbol, $namespace, $module, $gpl) = split('\t');
+ my (undef, $symbol, $module, $gpl, $namespace) = split('\t');
$SYMBOL { $symbol } = [ $module , "0" , $symbol, $gpl];
}
close($module_symvers);
diff --git a/scripts/kallsyms.c b/scripts/kallsyms.c
index 0133dfa..3e8dea6 100644
--- a/scripts/kallsyms.c
+++ b/scripts/kallsyms.c
@@ -195,13 +195,13 @@ static struct sym_entry *read_symbol(FILE *in)
return NULL;
}
- if (is_ignored_symbol(name, type))
- return NULL;
-
- /* Ignore most absolute/undefined (?) symbols. */
if (strcmp(name, "_text") == 0)
_text = addr;
+ /* Ignore most absolute/undefined (?) symbols. */
+ if (is_ignored_symbol(name, type))
+ return NULL;
+
check_symbol_range(name, addr, text_ranges, ARRAY_SIZE(text_ranges));
check_symbol_range(name, addr, &percpu_range, 1);
diff --git a/scripts/mod/modpost.c b/scripts/mod/modpost.c
index 7edfdb2..55a0a2e 100644
--- a/scripts/mod/modpost.c
+++ b/scripts/mod/modpost.c
@@ -308,7 +308,8 @@ static const char *sec_name(struct elf_info *elf, int secindex)
static void *sym_get_data(const struct elf_info *info, const Elf_Sym *sym)
{
- Elf_Shdr *sechdr = &info->sechdrs[sym->st_shndx];
+ unsigned int secindex = get_secindex(info, sym);
+ Elf_Shdr *sechdr = &info->sechdrs[secindex];
unsigned long offset;
offset = sym->st_value;
@@ -2427,7 +2428,7 @@ static void write_if_changed(struct buffer *b, const char *fname)
}
/* parse Module.symvers file. line format:
- * 0x12345678<tab>symbol<tab>module[[<tab>export]<tab>something]
+ * 0x12345678<tab>symbol<tab>module<tab>export<tab>namespace
**/
static void read_dump(const char *fname, unsigned int kernel)
{
@@ -2440,7 +2441,7 @@ static void read_dump(const char *fname, unsigned int kernel)
return;
while ((line = get_next_line(&pos, file, size))) {
- char *symname, *namespace, *modname, *d, *export, *end;
+ char *symname, *namespace, *modname, *d, *export;
unsigned int crc;
struct module *mod;
struct symbol *s;
@@ -2448,16 +2449,16 @@ static void read_dump(const char *fname, unsigned int kernel)
if (!(symname = strchr(line, '\t')))
goto fail;
*symname++ = '\0';
- if (!(namespace = strchr(symname, '\t')))
- goto fail;
- *namespace++ = '\0';
- if (!(modname = strchr(namespace, '\t')))
+ if (!(modname = strchr(symname, '\t')))
goto fail;
*modname++ = '\0';
- if ((export = strchr(modname, '\t')) != NULL)
- *export++ = '\0';
- if (export && ((end = strchr(export, '\t')) != NULL))
- *end = '\0';
+ if (!(export = strchr(modname, '\t')))
+ goto fail;
+ *export++ = '\0';
+ if (!(namespace = strchr(export, '\t')))
+ goto fail;
+ *namespace++ = '\0';
+
crc = strtoul(line, &d, 16);
if (*symname == '\0' || *modname == '\0' || *d != '\0')
goto fail;
@@ -2508,9 +2509,9 @@ static void write_dump(const char *fname)
namespace = symbol->namespace;
buf_printf(&buf, "0x%08x\t%s\t%s\t%s\t%s\n",
symbol->crc, symbol->name,
- namespace ? namespace : "",
symbol->module->name,
- export_str(symbol->export));
+ export_str(symbol->export),
+ namespace ? namespace : "");
}
symbol = symbol->next;
}
diff --git a/sound/core/oss/pcm_plugin.c b/sound/core/oss/pcm_plugin.c
index 240e470..752d078 100644
--- a/sound/core/oss/pcm_plugin.c
+++ b/sound/core/oss/pcm_plugin.c
@@ -111,7 +111,7 @@ int snd_pcm_plug_alloc(struct snd_pcm_substream *plug, snd_pcm_uframes_t frames)
while (plugin->next) {
if (plugin->dst_frames)
frames = plugin->dst_frames(plugin, frames);
- if (snd_BUG_ON((snd_pcm_sframes_t)frames <= 0))
+ if ((snd_pcm_sframes_t)frames <= 0)
return -ENXIO;
plugin = plugin->next;
err = snd_pcm_plugin_alloc(plugin, frames);
@@ -123,7 +123,7 @@ int snd_pcm_plug_alloc(struct snd_pcm_substream *plug, snd_pcm_uframes_t frames)
while (plugin->prev) {
if (plugin->src_frames)
frames = plugin->src_frames(plugin, frames);
- if (snd_BUG_ON((snd_pcm_sframes_t)frames <= 0))
+ if ((snd_pcm_sframes_t)frames <= 0)
return -ENXIO;
plugin = plugin->prev;
err = snd_pcm_plugin_alloc(plugin, frames);
@@ -209,6 +209,8 @@ snd_pcm_sframes_t snd_pcm_plug_client_size(struct snd_pcm_substream *plug, snd_p
if (stream == SNDRV_PCM_STREAM_PLAYBACK) {
plugin = snd_pcm_plug_last(plug);
while (plugin && drv_frames > 0) {
+ if (drv_frames > plugin->buf_frames)
+ drv_frames = plugin->buf_frames;
plugin_prev = plugin->prev;
if (plugin->src_frames)
drv_frames = plugin->src_frames(plugin, drv_frames);
@@ -220,6 +222,8 @@ snd_pcm_sframes_t snd_pcm_plug_client_size(struct snd_pcm_substream *plug, snd_p
plugin_next = plugin->next;
if (plugin->dst_frames)
drv_frames = plugin->dst_frames(plugin, drv_frames);
+ if (drv_frames > plugin->buf_frames)
+ drv_frames = plugin->buf_frames;
plugin = plugin_next;
}
} else
@@ -248,11 +252,15 @@ snd_pcm_sframes_t snd_pcm_plug_slave_size(struct snd_pcm_substream *plug, snd_pc
if (frames < 0)
return frames;
}
+ if (frames > plugin->buf_frames)
+ frames = plugin->buf_frames;
plugin = plugin_next;
}
} else if (stream == SNDRV_PCM_STREAM_CAPTURE) {
plugin = snd_pcm_plug_last(plug);
while (plugin) {
+ if (frames > plugin->buf_frames)
+ frames = plugin->buf_frames;
plugin_prev = plugin->prev;
if (plugin->src_frames) {
frames = plugin->src_frames(plugin, frames);
diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
index d5443ee..cbdf061 100644
--- a/sound/core/pcm_native.c
+++ b/sound/core/pcm_native.c
@@ -748,11 +748,11 @@ static int snd_pcm_hw_params(struct snd_pcm_substream *substream,
snd_pcm_timer_resolution_change(substream);
snd_pcm_set_state(substream, SNDRV_PCM_STATE_SETUP);
- if (pm_qos_request_active(&substream->latency_pm_qos_req))
- pm_qos_remove_request(&substream->latency_pm_qos_req);
+ if (cpu_latency_qos_request_active(&substream->latency_pm_qos_req))
+ cpu_latency_qos_remove_request(&substream->latency_pm_qos_req);
if ((usecs = period_to_usecs(runtime)) >= 0)
- pm_qos_add_request(&substream->latency_pm_qos_req,
- PM_QOS_CPU_DMA_LATENCY, usecs);
+ cpu_latency_qos_add_request(&substream->latency_pm_qos_req,
+ usecs);
return 0;
_error:
/* hardware might be unusable from this time,
@@ -821,7 +821,7 @@ static int snd_pcm_hw_free(struct snd_pcm_substream *substream)
return -EBADFD;
result = do_hw_free(substream);
snd_pcm_set_state(substream, SNDRV_PCM_STATE_OPEN);
- pm_qos_remove_request(&substream->latency_pm_qos_req);
+ cpu_latency_qos_remove_request(&substream->latency_pm_qos_req);
return result;
}
@@ -2599,8 +2599,8 @@ void snd_pcm_release_substream(struct snd_pcm_substream *substream)
substream->ops->close(substream);
substream->hw_opened = 0;
}
- if (pm_qos_request_active(&substream->latency_pm_qos_req))
- pm_qos_remove_request(&substream->latency_pm_qos_req);
+ if (cpu_latency_qos_request_active(&substream->latency_pm_qos_req))
+ cpu_latency_qos_remove_request(&substream->latency_pm_qos_req);
if (substream->pcm_release) {
substream->pcm_release(substream);
substream->pcm_release = NULL;
diff --git a/sound/core/seq/oss/seq_oss_midi.c b/sound/core/seq/oss/seq_oss_midi.c
index a88c235..2ddfe22 100644
--- a/sound/core/seq/oss/seq_oss_midi.c
+++ b/sound/core/seq/oss/seq_oss_midi.c
@@ -602,6 +602,7 @@ send_midi_event(struct seq_oss_devinfo *dp, struct snd_seq_event *ev, struct seq
len = snd_seq_oss_timer_start(dp->timer);
if (ev->type == SNDRV_SEQ_EVENT_SYSEX) {
snd_seq_oss_readq_sysex(dp->readq, mdev->seq_device, ev);
+ snd_midi_event_reset_decode(mdev->coder);
} else {
len = snd_midi_event_decode(mdev->coder, msg, sizeof(msg), ev);
if (len > 0)
diff --git a/sound/core/seq/seq_virmidi.c b/sound/core/seq/seq_virmidi.c
index 626d87c..77d7037 100644
--- a/sound/core/seq/seq_virmidi.c
+++ b/sound/core/seq/seq_virmidi.c
@@ -81,6 +81,7 @@ static int snd_virmidi_dev_receive_event(struct snd_virmidi_dev *rdev,
if ((ev->flags & SNDRV_SEQ_EVENT_LENGTH_MASK) != SNDRV_SEQ_EVENT_LENGTH_VARIABLE)
continue;
snd_seq_dump_var_event(ev, (snd_seq_dump_func_t)snd_rawmidi_receive, vmidi->substream);
+ snd_midi_event_reset_decode(vmidi->parser);
} else {
len = snd_midi_event_decode(vmidi->parser, msg, sizeof(msg), ev);
if (len > 0)
diff --git a/sound/pci/hda/patch_realtek.c b/sound/pci/hda/patch_realtek.c
index 0ac06ff..63e1a56 100644
--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -8051,6 +8051,8 @@ static int patch_alc269(struct hda_codec *codec)
spec->gen.mixer_nid = 0;
break;
case 0x10ec0225:
+ codec->power_save_node = 1;
+ /* fall through */
case 0x10ec0295:
case 0x10ec0299:
spec->codec_variant = ALC269_TYPE_ALC225;
@@ -8610,6 +8612,8 @@ enum {
ALC669_FIXUP_ACER_ASPIRE_ETHOS,
ALC669_FIXUP_ACER_ASPIRE_ETHOS_HEADSET,
ALC671_FIXUP_HP_HEADSET_MIC2,
+ ALC662_FIXUP_ACER_X2660G_HEADSET_MODE,
+ ALC662_FIXUP_ACER_NITRO_HEADSET_MODE,
};
static const struct hda_fixup alc662_fixups[] = {
@@ -8955,6 +8959,25 @@ static const struct hda_fixup alc662_fixups[] = {
.type = HDA_FIXUP_FUNC,
.v.func = alc671_fixup_hp_headset_mic2,
},
+ [ALC662_FIXUP_ACER_X2660G_HEADSET_MODE] = {
+ .type = HDA_FIXUP_PINS,
+ .v.pins = (const struct hda_pintbl[]) {
+ { 0x1a, 0x02a1113c }, /* use as headset mic, without its own jack detect */
+ { }
+ },
+ .chained = true,
+ .chain_id = ALC662_FIXUP_USI_FUNC
+ },
+ [ALC662_FIXUP_ACER_NITRO_HEADSET_MODE] = {
+ .type = HDA_FIXUP_PINS,
+ .v.pins = (const struct hda_pintbl[]) {
+ { 0x1a, 0x01a11140 }, /* use as headset mic, without its own jack detect */
+ { 0x1b, 0x0221144f },
+ { }
+ },
+ .chained = true,
+ .chain_id = ALC662_FIXUP_USI_FUNC
+ },
};
static const struct snd_pci_quirk alc662_fixup_tbl[] = {
@@ -8966,6 +8989,8 @@ static const struct snd_pci_quirk alc662_fixup_tbl[] = {
SND_PCI_QUIRK(0x1025, 0x0349, "eMachines eM250", ALC662_FIXUP_INV_DMIC),
SND_PCI_QUIRK(0x1025, 0x034a, "Gateway LT27", ALC662_FIXUP_INV_DMIC),
SND_PCI_QUIRK(0x1025, 0x038b, "Acer Aspire 8943G", ALC662_FIXUP_ASPIRE),
+ SND_PCI_QUIRK(0x1025, 0x123c, "Acer Nitro N50-600", ALC662_FIXUP_ACER_NITRO_HEADSET_MODE),
+ SND_PCI_QUIRK(0x1025, 0x124e, "Acer 2660G", ALC662_FIXUP_ACER_X2660G_HEADSET_MODE),
SND_PCI_QUIRK(0x1028, 0x05d8, "Dell", ALC668_FIXUP_DELL_MIC_NO_PRESENCE),
SND_PCI_QUIRK(0x1028, 0x05db, "Dell", ALC668_FIXUP_DELL_MIC_NO_PRESENCE),
SND_PCI_QUIRK(0x1028, 0x05fe, "Dell XPS 15", ALC668_FIXUP_DELL_XPS13),
diff --git a/sound/soc/intel/atom/sst/sst.c b/sound/soc/intel/atom/sst/sst.c
index 68bcec5..d656398 100644
--- a/sound/soc/intel/atom/sst/sst.c
+++ b/sound/soc/intel/atom/sst/sst.c
@@ -325,8 +325,7 @@ int sst_context_init(struct intel_sst_drv *ctx)
ret = -ENOMEM;
goto do_free_mem;
}
- pm_qos_add_request(ctx->qos, PM_QOS_CPU_DMA_LATENCY,
- PM_QOS_DEFAULT_VALUE);
+ cpu_latency_qos_add_request(ctx->qos, PM_QOS_DEFAULT_VALUE);
dev_dbg(ctx->dev, "Requesting FW %s now...\n", ctx->firmware_name);
ret = request_firmware_nowait(THIS_MODULE, true, ctx->firmware_name,
@@ -364,7 +363,7 @@ void sst_context_cleanup(struct intel_sst_drv *ctx)
sysfs_remove_group(&ctx->dev->kobj, &sst_fw_version_attr_group);
flush_scheduled_work();
destroy_workqueue(ctx->post_msg_wq);
- pm_qos_remove_request(ctx->qos);
+ cpu_latency_qos_remove_request(ctx->qos);
kfree(ctx->fw_sg_list.src);
kfree(ctx->fw_sg_list.dst);
ctx->fw_sg_list.list_len = 0;
diff --git a/sound/soc/intel/atom/sst/sst_loader.c b/sound/soc/intel/atom/sst/sst_loader.c
index ce11c36..9b0e373 100644
--- a/sound/soc/intel/atom/sst/sst_loader.c
+++ b/sound/soc/intel/atom/sst/sst_loader.c
@@ -412,7 +412,7 @@ int sst_load_fw(struct intel_sst_drv *sst_drv_ctx)
return -ENOMEM;
/* Prevent C-states beyond C6 */
- pm_qos_update_request(sst_drv_ctx->qos, 0);
+ cpu_latency_qos_update_request(sst_drv_ctx->qos, 0);
sst_drv_ctx->sst_state = SST_FW_LOADING;
@@ -442,7 +442,7 @@ int sst_load_fw(struct intel_sst_drv *sst_drv_ctx)
restore:
/* Re-enable Deeper C-states beyond C6 */
- pm_qos_update_request(sst_drv_ctx->qos, PM_QOS_DEFAULT_VALUE);
+ cpu_latency_qos_update_request(sst_drv_ctx->qos, PM_QOS_DEFAULT_VALUE);
sst_free_block(sst_drv_ctx, block);
dev_dbg(sst_drv_ctx->dev, "fw load successful!!!\n");
diff --git a/sound/soc/ti/omap-dmic.c b/sound/soc/ti/omap-dmic.c
index 3f226be..913579c 100644
--- a/sound/soc/ti/omap-dmic.c
+++ b/sound/soc/ti/omap-dmic.c
@@ -112,7 +112,7 @@ static void omap_dmic_dai_shutdown(struct snd_pcm_substream *substream,
mutex_lock(&dmic->mutex);
- pm_qos_remove_request(&dmic->pm_qos_req);
+ cpu_latency_qos_remove_request(&dmic->pm_qos_req);
if (!dai->active)
dmic->active = 0;
@@ -230,8 +230,9 @@ static int omap_dmic_dai_prepare(struct snd_pcm_substream *substream,
struct omap_dmic *dmic = snd_soc_dai_get_drvdata(dai);
u32 ctrl;
- if (pm_qos_request_active(&dmic->pm_qos_req))
- pm_qos_update_request(&dmic->pm_qos_req, dmic->latency);
+ if (cpu_latency_qos_request_active(&dmic->pm_qos_req))
+ cpu_latency_qos_update_request(&dmic->pm_qos_req,
+ dmic->latency);
/* Configure uplink threshold */
omap_dmic_write(dmic, OMAP_DMIC_FIFO_CTRL_REG, dmic->threshold);
diff --git a/sound/soc/ti/omap-mcbsp.c b/sound/soc/ti/omap-mcbsp.c
index 26b503b..302d5c4 100644
--- a/sound/soc/ti/omap-mcbsp.c
+++ b/sound/soc/ti/omap-mcbsp.c
@@ -836,10 +836,10 @@ static void omap_mcbsp_dai_shutdown(struct snd_pcm_substream *substream,
int stream2 = tx ? SNDRV_PCM_STREAM_CAPTURE : SNDRV_PCM_STREAM_PLAYBACK;
if (mcbsp->latency[stream2])
- pm_qos_update_request(&mcbsp->pm_qos_req,
- mcbsp->latency[stream2]);
+ cpu_latency_qos_update_request(&mcbsp->pm_qos_req,
+ mcbsp->latency[stream2]);
else if (mcbsp->latency[stream1])
- pm_qos_remove_request(&mcbsp->pm_qos_req);
+ cpu_latency_qos_remove_request(&mcbsp->pm_qos_req);
mcbsp->latency[stream1] = 0;
@@ -863,10 +863,10 @@ static int omap_mcbsp_dai_prepare(struct snd_pcm_substream *substream,
if (!latency || mcbsp->latency[stream1] < latency)
latency = mcbsp->latency[stream1];
- if (pm_qos_request_active(pm_qos_req))
- pm_qos_update_request(pm_qos_req, latency);
+ if (cpu_latency_qos_request_active(pm_qos_req))
+ cpu_latency_qos_update_request(pm_qos_req, latency);
else if (latency)
- pm_qos_add_request(pm_qos_req, PM_QOS_CPU_DMA_LATENCY, latency);
+ cpu_latency_qos_add_request(pm_qos_req, latency);
return 0;
}
@@ -1434,8 +1434,8 @@ static int asoc_mcbsp_remove(struct platform_device *pdev)
if (mcbsp->pdata->ops && mcbsp->pdata->ops->free)
mcbsp->pdata->ops->free(mcbsp->id);
- if (pm_qos_request_active(&mcbsp->pm_qos_req))
- pm_qos_remove_request(&mcbsp->pm_qos_req);
+ if (cpu_latency_qos_request_active(&mcbsp->pm_qos_req))
+ cpu_latency_qos_remove_request(&mcbsp->pm_qos_req);
if (mcbsp->pdata->buffer_size)
sysfs_remove_group(&mcbsp->dev->kobj, &additional_attr_group);
diff --git a/sound/soc/ti/omap-mcpdm.c b/sound/soc/ti/omap-mcpdm.c
index a726cd7..d7ac4df 100644
--- a/sound/soc/ti/omap-mcpdm.c
+++ b/sound/soc/ti/omap-mcpdm.c
@@ -281,10 +281,10 @@ static void omap_mcpdm_dai_shutdown(struct snd_pcm_substream *substream,
}
if (mcpdm->latency[stream2])
- pm_qos_update_request(&mcpdm->pm_qos_req,
- mcpdm->latency[stream2]);
+ cpu_latency_qos_update_request(&mcpdm->pm_qos_req,
+ mcpdm->latency[stream2]);
else if (mcpdm->latency[stream1])
- pm_qos_remove_request(&mcpdm->pm_qos_req);
+ cpu_latency_qos_remove_request(&mcpdm->pm_qos_req);
mcpdm->latency[stream1] = 0;
@@ -386,10 +386,10 @@ static int omap_mcpdm_prepare(struct snd_pcm_substream *substream,
if (!latency || mcpdm->latency[stream1] < latency)
latency = mcpdm->latency[stream1];
- if (pm_qos_request_active(pm_qos_req))
- pm_qos_update_request(pm_qos_req, latency);
+ if (cpu_latency_qos_request_active(pm_qos_req))
+ cpu_latency_qos_update_request(pm_qos_req, latency);
else if (latency)
- pm_qos_add_request(pm_qos_req, PM_QOS_CPU_DMA_LATENCY, latency);
+ cpu_latency_qos_add_request(pm_qos_req, latency);
if (!omap_mcpdm_active(mcpdm)) {
omap_mcpdm_start(mcpdm);
@@ -451,8 +451,8 @@ static int omap_mcpdm_remove(struct snd_soc_dai *dai)
free_irq(mcpdm->irq, (void *)mcpdm);
pm_runtime_disable(mcpdm->dev);
- if (pm_qos_request_active(&mcpdm->pm_qos_req))
- pm_qos_remove_request(&mcpdm->pm_qos_req);
+ if (cpu_latency_qos_request_active(&mcpdm->pm_qos_req))
+ cpu_latency_qos_remove_request(&mcpdm->pm_qos_req);
return 0;
}
diff --git a/sound/usb/line6/driver.c b/sound/usb/line6/driver.c
index b5a3f75..4f09668 100644
--- a/sound/usb/line6/driver.c
+++ b/sound/usb/line6/driver.c
@@ -305,7 +305,7 @@ static void line6_data_received(struct urb *urb)
line6_midibuf_read(mb, line6->buffer_message,
LINE6_MIDI_MESSAGE_MAXLEN);
- if (done == 0)
+ if (done <= 0)
break;
line6->message_length = done;
diff --git a/sound/usb/line6/midibuf.c b/sound/usb/line6/midibuf.c
index 8d6eefa..6a70463 100644
--- a/sound/usb/line6/midibuf.c
+++ b/sound/usb/line6/midibuf.c
@@ -159,7 +159,7 @@ int line6_midibuf_read(struct midi_buffer *this, unsigned char *data,
int midi_length_prev =
midibuf_message_length(this->command_prev);
- if (midi_length_prev > 0) {
+ if (midi_length_prev > 1) {
midi_length = midi_length_prev - 1;
repeat = 1;
} else
diff --git a/tools/power/x86/intel_pstate_tracer/intel_pstate_tracer.py b/tools/power/x86/intel_pstate_tracer/intel_pstate_tracer.py
index 256199c..3c47865 100755
--- a/tools/power/x86/intel_pstate_tracer/intel_pstate_tracer.py
+++ b/tools/power/x86/intel_pstate_tracer/intel_pstate_tracer.py
@@ -235,7 +235,6 @@
output_png = 'all_cpu_durations.png'
g_plot = common_all_gnuplot_settings(output_png)
# autoscale this one, no set y range
- g_plot('set ytics 0, 500')
g_plot('set ylabel "Timer Duration (MilliSeconds)"')
g_plot('set title "{} : cpu durations : {:%F %H:%M}"'.format(testname, datetime.now()))
diff --git a/tools/power/x86/turbostat/Makefile b/tools/power/x86/turbostat/Makefile
index 13f1e8b..2b65512 100644
--- a/tools/power/x86/turbostat/Makefile
+++ b/tools/power/x86/turbostat/Makefile
@@ -16,7 +16,7 @@
%: %.c
@mkdir -p $(BUILD_OUTPUT)
- $(CC) $(CFLAGS) $< -o $(BUILD_OUTPUT)/$@ $(LDFLAGS)
+ $(CC) $(CFLAGS) $< -o $(BUILD_OUTPUT)/$@ $(LDFLAGS) -lcap
.PHONY : clean
clean :
diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c
index 31c1ca0..33b3708 100644
--- a/tools/power/x86/turbostat/turbostat.c
+++ b/tools/power/x86/turbostat/turbostat.c
@@ -30,7 +30,7 @@
#include <sched.h>
#include <time.h>
#include <cpuid.h>
-#include <linux/capability.h>
+#include <sys/capability.h>
#include <errno.h>
#include <math.h>
@@ -304,6 +304,10 @@ int *irqs_per_cpu; /* indexed by cpu_num */
void setup_all_buffers(void);
+char *sys_lpi_file;
+char *sys_lpi_file_sysfs = "/sys/devices/system/cpu/cpuidle/low_power_idle_system_residency_us";
+char *sys_lpi_file_debugfs = "/sys/kernel/debug/pmc_core/slp_s0_residency_usec";
+
int cpu_is_not_present(int cpu)
{
return !CPU_ISSET_S(cpu, cpu_present_setsize, cpu_present_set);
@@ -2916,8 +2920,6 @@ int snapshot_gfx_mhz(void)
*
* record snapshot of
* /sys/devices/system/cpu/cpuidle/low_power_idle_cpu_residency_us
- *
- * return 1 if config change requires a restart, else return 0
*/
int snapshot_cpu_lpi_us(void)
{
@@ -2941,17 +2943,14 @@ int snapshot_cpu_lpi_us(void)
/*
* snapshot_sys_lpi()
*
- * record snapshot of
- * /sys/devices/system/cpu/cpuidle/low_power_idle_system_residency_us
- *
- * return 1 if config change requires a restart, else return 0
+ * record snapshot of sys_lpi_file
*/
int snapshot_sys_lpi_us(void)
{
FILE *fp;
int retval;
- fp = fopen_or_die("/sys/devices/system/cpu/cpuidle/low_power_idle_system_residency_us", "r");
+ fp = fopen_or_die(sys_lpi_file, "r");
retval = fscanf(fp, "%lld", &cpuidle_cur_sys_lpi_us);
if (retval != 1) {
@@ -3151,27 +3150,41 @@ void check_dev_msr()
err(-5, "no /dev/cpu/0/msr, Try \"# modprobe msr\" ");
}
-void check_permissions()
+/*
+ * check for CAP_SYS_RAWIO
+ * return 0 on success
+ * return 1 on fail
+ */
+int check_for_cap_sys_rawio(void)
{
- struct __user_cap_header_struct cap_header_data;
- cap_user_header_t cap_header = &cap_header_data;
- struct __user_cap_data_struct cap_data_data;
- cap_user_data_t cap_data = &cap_data_data;
- extern int capget(cap_user_header_t hdrp, cap_user_data_t datap);
+ cap_t caps;
+ cap_flag_value_t cap_flag_value;
+
+ caps = cap_get_proc();
+ if (caps == NULL)
+ err(-6, "cap_get_proc\n");
+
+ if (cap_get_flag(caps, CAP_SYS_RAWIO, CAP_EFFECTIVE, &cap_flag_value))
+ err(-6, "cap_get\n");
+
+ if (cap_flag_value != CAP_SET) {
+ warnx("capget(CAP_SYS_RAWIO) failed,"
+ " try \"# setcap cap_sys_rawio=ep %s\"", progname);
+ return 1;
+ }
+
+ if (cap_free(caps) == -1)
+ err(-6, "cap_free\n");
+
+ return 0;
+}
+void check_permissions(void)
+{
int do_exit = 0;
char pathname[32];
/* check for CAP_SYS_RAWIO */
- cap_header->pid = getpid();
- cap_header->version = _LINUX_CAPABILITY_VERSION;
- if (capget(cap_header, cap_data) < 0)
- err(-6, "capget(2) failed");
-
- if ((cap_data->effective & (1 << CAP_SYS_RAWIO)) == 0) {
- do_exit++;
- warnx("capget(CAP_SYS_RAWIO) failed,"
- " try \"# setcap cap_sys_rawio=ep %s\"", progname);
- }
+ do_exit += check_for_cap_sys_rawio();
/* test file permissions */
sprintf(pathname, "/dev/cpu/%d/msr", base_cpu);
@@ -3265,6 +3278,7 @@ int probe_nhm_msrs(unsigned int family, unsigned int model)
case INTEL_FAM6_ATOM_GOLDMONT: /* BXT */
case INTEL_FAM6_ATOM_GOLDMONT_PLUS:
case INTEL_FAM6_ATOM_GOLDMONT_D: /* DNV */
+ case INTEL_FAM6_ATOM_TREMONT: /* EHL */
pkg_cstate_limits = glm_pkg_cstate_limits;
break;
default:
@@ -3336,6 +3350,17 @@ int is_skx(unsigned int family, unsigned int model)
}
return 0;
}
+int is_ehl(unsigned int family, unsigned int model)
+{
+ if (!genuine_intel)
+ return 0;
+
+ switch (model) {
+ case INTEL_FAM6_ATOM_TREMONT:
+ return 1;
+ }
+ return 0;
+}
int has_turbo_ratio_limit(unsigned int family, unsigned int model)
{
@@ -3478,6 +3503,23 @@ dump_cstate_pstate_config_info(unsigned int family, unsigned int model)
dump_nhm_cst_cfg();
}
+static void dump_sysfs_file(char *path)
+{
+ FILE *input;
+ char cpuidle_buf[64];
+
+ input = fopen(path, "r");
+ if (input == NULL) {
+ if (debug)
+ fprintf(outf, "NSFOD %s\n", path);
+ return;
+ }
+ if (!fgets(cpuidle_buf, sizeof(cpuidle_buf), input))
+ err(1, "%s: failed to read file", path);
+ fclose(input);
+
+ fprintf(outf, "%s: %s", strrchr(path, '/') + 1, cpuidle_buf);
+}
static void
dump_sysfs_cstate_config(void)
{
@@ -3491,6 +3533,15 @@ dump_sysfs_cstate_config(void)
if (!DO_BIC(BIC_sysfs))
return;
+ if (access("/sys/devices/system/cpu/cpuidle", R_OK)) {
+ fprintf(outf, "cpuidle not loaded\n");
+ return;
+ }
+
+ dump_sysfs_file("/sys/devices/system/cpu/cpuidle/current_driver");
+ dump_sysfs_file("/sys/devices/system/cpu/cpuidle/current_governor");
+ dump_sysfs_file("/sys/devices/system/cpu/cpuidle/current_governor_ro");
+
for (state = 0; state < 10; ++state) {
sprintf(path, "/sys/devices/system/cpu/cpu%d/cpuidle/state%d/name",
@@ -3894,6 +3945,20 @@ void rapl_probe_intel(unsigned int family, unsigned int model)
else
BIC_PRESENT(BIC_PkgWatt);
break;
+ case INTEL_FAM6_ATOM_TREMONT: /* EHL */
+ do_rapl = RAPL_PKG | RAPL_CORES | RAPL_CORE_POLICY | RAPL_DRAM | RAPL_DRAM_PERF_STATUS | RAPL_PKG_PERF_STATUS | RAPL_GFX | RAPL_PKG_POWER_INFO;
+ if (rapl_joules) {
+ BIC_PRESENT(BIC_Pkg_J);
+ BIC_PRESENT(BIC_Cor_J);
+ BIC_PRESENT(BIC_RAM_J);
+ BIC_PRESENT(BIC_GFX_J);
+ } else {
+ BIC_PRESENT(BIC_PkgWatt);
+ BIC_PRESENT(BIC_CorWatt);
+ BIC_PRESENT(BIC_RAMWatt);
+ BIC_PRESENT(BIC_GFXWatt);
+ }
+ break;
case INTEL_FAM6_SKYLAKE_L: /* SKL */
case INTEL_FAM6_CANNONLAKE_L: /* CNL */
do_rapl = RAPL_PKG | RAPL_CORES | RAPL_CORE_POLICY | RAPL_DRAM | RAPL_DRAM_PERF_STATUS | RAPL_PKG_PERF_STATUS | RAPL_GFX | RAPL_PKG_POWER_INFO;
@@ -4295,6 +4360,7 @@ int has_snb_msrs(unsigned int family, unsigned int model)
case INTEL_FAM6_ATOM_GOLDMONT: /* BXT */
case INTEL_FAM6_ATOM_GOLDMONT_PLUS:
case INTEL_FAM6_ATOM_GOLDMONT_D: /* DNV */
+ case INTEL_FAM6_ATOM_TREMONT: /* EHL */
return 1;
}
return 0;
@@ -4324,6 +4390,7 @@ int has_c8910_msrs(unsigned int family, unsigned int model)
case INTEL_FAM6_CANNONLAKE_L: /* CNL */
case INTEL_FAM6_ATOM_GOLDMONT: /* BXT */
case INTEL_FAM6_ATOM_GOLDMONT_PLUS:
+ case INTEL_FAM6_ATOM_TREMONT: /* EHL */
return 1;
}
return 0;
@@ -4610,14 +4677,24 @@ unsigned int intel_model_duplicates(unsigned int model)
case INTEL_FAM6_SKYLAKE:
case INTEL_FAM6_KABYLAKE_L:
case INTEL_FAM6_KABYLAKE:
+ case INTEL_FAM6_COMETLAKE_L:
+ case INTEL_FAM6_COMETLAKE:
return INTEL_FAM6_SKYLAKE_L;
case INTEL_FAM6_ICELAKE_L:
case INTEL_FAM6_ICELAKE_NNPI:
+ case INTEL_FAM6_TIGERLAKE_L:
+ case INTEL_FAM6_TIGERLAKE:
return INTEL_FAM6_CANNONLAKE_L;
case INTEL_FAM6_ATOM_TREMONT_D:
return INTEL_FAM6_ATOM_GOLDMONT_D;
+
+ case INTEL_FAM6_ATOM_TREMONT_L:
+ return INTEL_FAM6_ATOM_TREMONT;
+
+ case INTEL_FAM6_ICELAKE_X:
+ return INTEL_FAM6_SKYLAKE_X;
}
return model;
}
@@ -4872,7 +4949,8 @@ void process_cpuid()
do_slm_cstates = is_slm(family, model);
do_knl_cstates = is_knl(family, model);
- if (do_slm_cstates || do_knl_cstates || is_cnl(family, model))
+ if (do_slm_cstates || do_knl_cstates || is_cnl(family, model) ||
+ is_ehl(family, model))
BIC_NOT_PRESENT(BIC_CPU_c3);
if (!quiet)
@@ -4907,10 +4985,16 @@ void process_cpuid()
else
BIC_NOT_PRESENT(BIC_CPU_LPI);
- if (!access("/sys/devices/system/cpu/cpuidle/low_power_idle_system_residency_us", R_OK))
+ if (!access(sys_lpi_file_sysfs, R_OK)) {
+ sys_lpi_file = sys_lpi_file_sysfs;
BIC_PRESENT(BIC_SYS_LPI);
- else
+ } else if (!access(sys_lpi_file_debugfs, R_OK)) {
+ sys_lpi_file = sys_lpi_file_debugfs;
+ BIC_PRESENT(BIC_SYS_LPI);
+ } else {
+ sys_lpi_file_sysfs = NULL;
BIC_NOT_PRESENT(BIC_SYS_LPI);
+ }
if (!quiet)
decode_misc_feature_control();
@@ -5306,7 +5390,7 @@ int get_and_dump_counters(void)
}
void print_version() {
- fprintf(outf, "turbostat version 19.08.31"
+ fprintf(outf, "turbostat version 20.03.20"
" - Len Brown <lenb@kernel.org>\n");
}
@@ -5323,9 +5407,9 @@ int add_counter(unsigned int msr_num, char *path, char *name,
}
msrp->msr_num = msr_num;
- strncpy(msrp->name, name, NAME_BYTES);
+ strncpy(msrp->name, name, NAME_BYTES - 1);
if (path)
- strncpy(msrp->path, path, PATH_BYTES);
+ strncpy(msrp->path, path, PATH_BYTES - 1);
msrp->width = width;
msrp->type = type;
msrp->format = format;
diff --git a/usr/Kconfig b/usr/Kconfig
index bdf5bbd..96afb03 100644
--- a/usr/Kconfig
+++ b/usr/Kconfig
@@ -124,17 +124,6 @@
If in doubt, select 'None'
-config INITRAMFS_COMPRESSION_NONE
- bool "None"
- help
- Do not compress the built-in initramfs at all. This may sound wasteful
- in space, but, you should be aware that the built-in initramfs will be
- compressed at a later stage anyways along with the rest of the kernel,
- on those architectures that support this. However, not compressing the
- initramfs may lead to slightly higher memory consumption during a
- short time at boot, while both the cpio image and the unpacked
- filesystem image will be present in memory simultaneously
-
config INITRAMFS_COMPRESSION_GZIP
bool "Gzip"
depends on RD_GZIP
@@ -207,4 +196,15 @@
If you choose this, keep in mind that most distros don't provide lz4
by default which could cause a build failure.
+config INITRAMFS_COMPRESSION_NONE
+ bool "None"
+ help
+ Do not compress the built-in initramfs at all. This may sound wasteful
+ in space, but, you should be aware that the built-in initramfs will be
+ compressed at a later stage anyways along with the rest of the kernel,
+ on those architectures that support this. However, not compressing the
+ initramfs may lead to slightly higher memory consumption during a
+ short time at boot, while both the cpio image and the unpacked
+ filesystem image will be present in memory simultaneously
+
endchoice