Merge branches 'pm-sleep', 'pm-cpuidle', 'pm-cpufreq', 'pm-devfreq' and 'pm-avs'
* pm-sleep:
ACPI: PM: s2idle: Rework ACPI events synchronization
ACPI: EC: Rework flushing of pending work
* pm-cpuidle:
cpuidle: minor Kconfig help text fixes
cpuidle: Drop disabled field from struct cpuidle_state
cpuidle: Fix Kconfig indentation
* pm-cpufreq:
cpufreq: Fix Kconfig indentation
* pm-devfreq:
PM / devfreq: Add missing locking while setting suspend_freq
* pm-avs:
power: avs: Fix Kconfig indentation
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index a0a4732..122f2d2 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -1168,7 +1168,8 @@
Format: {"off" | "on" | "skip[mbr]"}
efi= [EFI]
- Format: { "old_map", "nochunk", "noruntime", "debug" }
+ Format: { "old_map", "nochunk", "noruntime", "debug",
+ "nosoftreserve" }
old_map [X86-64]: switch to the old ioremap-based EFI
runtime services mapping. 32-bit still uses this one by
default.
@@ -1177,6 +1178,12 @@
firmware implementations.
noruntime : disable EFI runtime services support
debug: enable misc debug output
+ nosoftreserve: The EFI_MEMORY_SP (Specific Purpose)
+ attribute may cause the kernel to reserve the
+ memory range for a memory mapping driver to
+ claim. Specify efi=nosoftreserve to disable this
+ reservation and treat the memory by its base type
+ (i.e. EFI_CONVENTIONAL_MEMORY / "System RAM").
efi_no_storage_paranoia [EFI; X86]
Using this parameter you can use more than 50% of
@@ -1189,15 +1196,21 @@
updating original EFI memory map.
Region of memory which aa attribute is added to is
from ss to ss+nn.
+
If efi_fake_mem=2G@4G:0x10000,2G@0x10a0000000:0x10000
is specified, EFI_MEMORY_MORE_RELIABLE(0x10000)
attribute is added to range 0x100000000-0x180000000 and
0x10a0000000-0x1120000000.
+ If efi_fake_mem=8G@9G:0x40000 is specified, the
+ EFI_MEMORY_SP(0x40000) attribute is added to
+ range 0x240000000-0x43fffffff.
+
Using this parameter you can do debugging of EFI memmap
- related feature. For example, you can do debugging of
+ related features. For example, you can do debugging of
Address Range Mirroring feature even if your box
- doesn't support it.
+ doesn't support it, or mark specific memory as
+ "soft reserved".
efivar_ssdt= [EFI; X86] Name of an EFI variable that contains an SSDT
that is to be dynamically loaded by Linux. If there are
diff --git a/Documentation/firmware-guide/acpi/namespace.rst b/Documentation/firmware-guide/acpi/namespace.rst
index 835521ba..3eb763d6 100644
--- a/Documentation/firmware-guide/acpi/namespace.rst
+++ b/Documentation/firmware-guide/acpi/namespace.rst
@@ -261,7 +261,7 @@
struct acpi_device objects represented by the given row (xSDT means DSDT
or SSDT).
-The forth column of the above table indicates the 'bus_id' generation
+The fourth column of the above table indicates the 'bus_id' generation
rule of the struct acpi_device object:
_HID:
diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c
index a9f5419..5a3b15a 100644
--- a/arch/arm64/mm/mmu.c
+++ b/arch/arm64/mm/mmu.c
@@ -1060,6 +1060,8 @@ int arch_add_memory(int nid, u64 start, u64 size,
__create_pgd_mapping(swapper_pg_dir, start, __phys_to_virt(start),
size, PAGE_KERNEL, __pgd_pgtable_alloc, flags);
+ memblock_clear_nomap(start, size);
+
return __add_pages(nid, start >> PAGE_SHIFT, size >> PAGE_SHIFT,
restrictions);
}
diff --git a/arch/sh/kernel/cpu/shmobile/cpuidle.c b/arch/sh/kernel/cpu/shmobile/cpuidle.c
index dbd2cde..b0f9c8f 100644
--- a/arch/sh/kernel/cpu/shmobile/cpuidle.c
+++ b/arch/sh/kernel/cpu/shmobile/cpuidle.c
@@ -67,7 +67,7 @@ static struct cpuidle_driver cpuidle_driver = {
.enter = cpuidle_sleep_enter,
.name = "C2",
.desc = "SuperH Sleep Mode [SF]",
- .disabled = true,
+ .flags = CPUIDLE_FLAG_UNUSABLE,
},
{
.exit_latency = 2300,
@@ -76,7 +76,7 @@ static struct cpuidle_driver cpuidle_driver = {
.enter = cpuidle_sleep_enter,
.name = "C3",
.desc = "SuperH Mobile Standby Mode [SF]",
- .disabled = true,
+ .flags = CPUIDLE_FLAG_UNUSABLE,
},
},
.safe_state_index = 0,
@@ -86,10 +86,10 @@ static struct cpuidle_driver cpuidle_driver = {
int __init sh_mobile_setup_cpuidle(void)
{
if (sh_mobile_sleep_supported & SUSP_SH_SF)
- cpuidle_driver.states[1].disabled = false;
+ cpuidle_driver.states[1].flags = CPUIDLE_FLAG_NONE;
if (sh_mobile_sleep_supported & SUSP_SH_STANDBY)
- cpuidle_driver.states[2].disabled = false;
+ cpuidle_driver.states[2].flags = CPUIDLE_FLAG_NONE;
return cpuidle_register(&cpuidle_driver, NULL);
}
diff --git a/arch/x86/boot/compressed/eboot.c b/arch/x86/boot/compressed/eboot.c
index 68945c5..72b08fd 100644
--- a/arch/x86/boot/compressed/eboot.c
+++ b/arch/x86/boot/compressed/eboot.c
@@ -554,7 +554,11 @@ setup_e820(struct boot_params *params, struct setup_data *e820ext, u32 e820ext_s
case EFI_BOOT_SERVICES_CODE:
case EFI_BOOT_SERVICES_DATA:
case EFI_CONVENTIONAL_MEMORY:
- e820_type = E820_TYPE_RAM;
+ if (efi_soft_reserve_enabled() &&
+ (d->attribute & EFI_MEMORY_SP))
+ e820_type = E820_TYPE_SOFT_RESERVED;
+ else
+ e820_type = E820_TYPE_RAM;
break;
case EFI_ACPI_MEMORY_NVS:
diff --git a/arch/x86/boot/compressed/kaslr.c b/arch/x86/boot/compressed/kaslr.c
index bb9bfef..d7408af 100644
--- a/arch/x86/boot/compressed/kaslr.c
+++ b/arch/x86/boot/compressed/kaslr.c
@@ -132,8 +132,14 @@ char *skip_spaces(const char *str)
#include "../../../../lib/ctype.c"
#include "../../../../lib/cmdline.c"
+enum parse_mode {
+ PARSE_MEMMAP,
+ PARSE_EFI,
+};
+
static int
-parse_memmap(char *p, unsigned long long *start, unsigned long long *size)
+parse_memmap(char *p, unsigned long long *start, unsigned long long *size,
+ enum parse_mode mode)
{
char *oldp;
@@ -156,8 +162,29 @@ parse_memmap(char *p, unsigned long long *start, unsigned long long *size)
*start = memparse(p + 1, &p);
return 0;
case '@':
- /* memmap=nn@ss specifies usable region, should be skipped */
- *size = 0;
+ if (mode == PARSE_MEMMAP) {
+ /*
+ * memmap=nn@ss specifies usable region, should
+ * be skipped
+ */
+ *size = 0;
+ } else {
+ unsigned long long flags;
+
+ /*
+ * efi_fake_mem=nn@ss:attr the attr specifies
+ * flags that might imply a soft-reservation.
+ */
+ *start = memparse(p + 1, &p);
+ if (p && *p == ':') {
+ p++;
+ if (kstrtoull(p, 0, &flags) < 0)
+ *size = 0;
+ else if (flags & EFI_MEMORY_SP)
+ return 0;
+ }
+ *size = 0;
+ }
/* Fall through */
default:
/*
@@ -172,7 +199,7 @@ parse_memmap(char *p, unsigned long long *start, unsigned long long *size)
return -EINVAL;
}
-static void mem_avoid_memmap(char *str)
+static void mem_avoid_memmap(enum parse_mode mode, char *str)
{
static int i;
@@ -187,7 +214,7 @@ static void mem_avoid_memmap(char *str)
if (k)
*k++ = 0;
- rc = parse_memmap(str, &start, &size);
+ rc = parse_memmap(str, &start, &size, mode);
if (rc < 0)
break;
str = k;
@@ -238,7 +265,6 @@ static void parse_gb_huge_pages(char *param, char *val)
}
}
-
static void handle_mem_options(void)
{
char *args = (char *)get_cmd_line_ptr();
@@ -271,7 +297,7 @@ static void handle_mem_options(void)
}
if (!strcmp(param, "memmap")) {
- mem_avoid_memmap(val);
+ mem_avoid_memmap(PARSE_MEMMAP, val);
} else if (strstr(param, "hugepages")) {
parse_gb_huge_pages(param, val);
} else if (!strcmp(param, "mem")) {
@@ -284,6 +310,8 @@ static void handle_mem_options(void)
goto out;
mem_limit = mem_size;
+ } else if (!strcmp(param, "efi_fake_mem")) {
+ mem_avoid_memmap(PARSE_EFI, val);
}
}
@@ -772,6 +800,10 @@ process_efi_entries(unsigned long minimum, unsigned long image_size)
if (md->type != EFI_CONVENTIONAL_MEMORY)
continue;
+ if (efi_soft_reserve_enabled() &&
+ (md->attribute & EFI_MEMORY_SP))
+ continue;
+
if (efi_mirror_found &&
!(md->attribute & EFI_MEMORY_MORE_RELIABLE))
continue;
diff --git a/arch/x86/include/asm/e820/types.h b/arch/x86/include/asm/e820/types.h
index c3aa4b5..314f75d 100644
--- a/arch/x86/include/asm/e820/types.h
+++ b/arch/x86/include/asm/e820/types.h
@@ -29,6 +29,14 @@ enum e820_type {
E820_TYPE_PRAM = 12,
/*
+ * Special-purpose memory is indicated to the system via the
+ * EFI_MEMORY_SP attribute. Define an e820 translation of this
+ * memory type for the purpose of reserving this range and
+ * marking it with the IORES_DESC_SOFT_RESERVED designation.
+ */
+ E820_TYPE_SOFT_RESERVED = 0xefffffff,
+
+ /*
* Reserved RAM used by the kernel itself if
* CONFIG_INTEL_TXT=y is enabled, memory of this type
* will be included in the S3 integrity calculation
diff --git a/arch/x86/include/asm/efi.h b/arch/x86/include/asm/efi.h
index 43a82e5..d028e9a 100644
--- a/arch/x86/include/asm/efi.h
+++ b/arch/x86/include/asm/efi.h
@@ -140,7 +140,6 @@ extern void efi_delete_dummy_variable(void);
extern void efi_switch_mm(struct mm_struct *mm);
extern void efi_recover_from_page_fault(unsigned long phys_addr);
extern void efi_free_boot_services(void);
-extern void efi_reserve_boot_services(void);
struct efi_setup_data {
u64 fw_vendor;
@@ -244,6 +243,8 @@ static inline bool efi_is_64bit(void)
extern bool efi_reboot_required(void);
extern bool efi_is_table_address(unsigned long phys_addr);
+extern void efi_find_mirror(void);
+extern void efi_reserve_boot_services(void);
#else
static inline void parse_efi_setup(u64 phys_addr, u32 data_len) {}
static inline bool efi_reboot_required(void)
@@ -254,6 +255,20 @@ static inline bool efi_is_table_address(unsigned long phys_addr)
{
return false;
}
+static inline void efi_find_mirror(void)
+{
+}
+static inline void efi_reserve_boot_services(void)
+{
+}
#endif /* CONFIG_EFI */
+#ifdef CONFIG_EFI_FAKE_MEMMAP
+extern void __init efi_fake_memmap_early(void);
+#else
+static inline void efi_fake_memmap_early(void)
+{
+}
+#endif
+
#endif /* _ASM_X86_EFI_H */
diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c
index 0bfe9a6..c5399e8 100644
--- a/arch/x86/kernel/e820.c
+++ b/arch/x86/kernel/e820.c
@@ -190,6 +190,7 @@ static void __init e820_print_type(enum e820_type type)
case E820_TYPE_RAM: /* Fall through: */
case E820_TYPE_RESERVED_KERN: pr_cont("usable"); break;
case E820_TYPE_RESERVED: pr_cont("reserved"); break;
+ case E820_TYPE_SOFT_RESERVED: pr_cont("soft reserved"); break;
case E820_TYPE_ACPI: pr_cont("ACPI data"); break;
case E820_TYPE_NVS: pr_cont("ACPI NVS"); break;
case E820_TYPE_UNUSABLE: pr_cont("unusable"); break;
@@ -1048,6 +1049,7 @@ static const char *__init e820_type_to_string(struct e820_entry *entry)
case E820_TYPE_PRAM: return "Persistent Memory (legacy)";
case E820_TYPE_PMEM: return "Persistent Memory";
case E820_TYPE_RESERVED: return "Reserved";
+ case E820_TYPE_SOFT_RESERVED: return "Soft Reserved";
default: return "Unknown E820 type";
}
}
@@ -1063,6 +1065,7 @@ static unsigned long __init e820_type_to_iomem_type(struct e820_entry *entry)
case E820_TYPE_PRAM: /* Fall-through: */
case E820_TYPE_PMEM: /* Fall-through: */
case E820_TYPE_RESERVED: /* Fall-through: */
+ case E820_TYPE_SOFT_RESERVED: /* Fall-through: */
default: return IORESOURCE_MEM;
}
}
@@ -1075,6 +1078,7 @@ static unsigned long __init e820_type_to_iores_desc(struct e820_entry *entry)
case E820_TYPE_PMEM: return IORES_DESC_PERSISTENT_MEMORY;
case E820_TYPE_PRAM: return IORES_DESC_PERSISTENT_MEMORY_LEGACY;
case E820_TYPE_RESERVED: return IORES_DESC_RESERVED;
+ case E820_TYPE_SOFT_RESERVED: return IORES_DESC_SOFT_RESERVED;
case E820_TYPE_RESERVED_KERN: /* Fall-through: */
case E820_TYPE_RAM: /* Fall-through: */
case E820_TYPE_UNUSABLE: /* Fall-through: */
@@ -1089,11 +1093,12 @@ static bool __init do_mark_busy(enum e820_type type, struct resource *res)
return true;
/*
- * Treat persistent memory like device memory, i.e. reserve it
- * for exclusive use of a driver
+ * Treat persistent memory and other special memory ranges like
+ * device memory, i.e. reserve it for exclusive use of a driver
*/
switch (type) {
case E820_TYPE_RESERVED:
+ case E820_TYPE_SOFT_RESERVED:
case E820_TYPE_PRAM:
case E820_TYPE_PMEM:
return false;
@@ -1296,6 +1301,9 @@ void __init e820__memblock_setup(void)
if (end != (resource_size_t)end)
continue;
+ if (entry->type == E820_TYPE_SOFT_RESERVED)
+ memblock_reserve(entry->addr, entry->size);
+
if (entry->type != E820_TYPE_RAM && entry->type != E820_TYPE_RESERVED_KERN)
continue;
diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index d398afd..cedfe20 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -1138,17 +1138,15 @@ void __init setup_arch(char **cmdline_p)
reserve_bios_regions();
- if (efi_enabled(EFI_MEMMAP)) {
- efi_fake_memmap();
- efi_find_mirror();
- efi_esrt_init();
+ efi_fake_memmap();
+ efi_find_mirror();
+ efi_esrt_init();
- /*
- * The EFI specification says that boot service code won't be
- * called after ExitBootServices(). This is, in fact, a lie.
- */
- efi_reserve_boot_services();
- }
+ /*
+ * The EFI specification says that boot service code won't be
+ * called after ExitBootServices(). This is, in fact, a lie.
+ */
+ efi_reserve_boot_services();
/* preallocate 4k for mptable mpc */
e820__memblock_alloc_reserved_mpc_new();
diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c
index 425e025..38d44f36 100644
--- a/arch/x86/platform/efi/efi.c
+++ b/arch/x86/platform/efi/efi.c
@@ -128,6 +128,9 @@ void __init efi_find_mirror(void)
efi_memory_desc_t *md;
u64 mirror_size = 0, total_size = 0;
+ if (!efi_enabled(EFI_MEMMAP))
+ return;
+
for_each_efi_memory_desc(md) {
unsigned long long start = md->phys_addr;
unsigned long long size = md->num_pages << EFI_PAGE_SHIFT;
@@ -145,14 +148,18 @@ void __init efi_find_mirror(void)
/*
* Tell the kernel about the EFI memory map. This might include
- * more than the max 128 entries that can fit in the e820 legacy
- * (zeropage) memory map.
+ * more than the max 128 entries that can fit in the passed in e820
+ * legacy (zeropage) memory map, but the kernel's e820 table can hold
+ * E820_MAX_ENTRIES.
*/
static void __init do_add_efi_memmap(void)
{
efi_memory_desc_t *md;
+ if (!efi_enabled(EFI_MEMMAP))
+ return;
+
for_each_efi_memory_desc(md) {
unsigned long long start = md->phys_addr;
unsigned long long size = md->num_pages << EFI_PAGE_SHIFT;
@@ -164,7 +171,10 @@ static void __init do_add_efi_memmap(void)
case EFI_BOOT_SERVICES_CODE:
case EFI_BOOT_SERVICES_DATA:
case EFI_CONVENTIONAL_MEMORY:
- if (md->attribute & EFI_MEMORY_WB)
+ if (efi_soft_reserve_enabled()
+ && (md->attribute & EFI_MEMORY_SP))
+ e820_type = E820_TYPE_SOFT_RESERVED;
+ else if (md->attribute & EFI_MEMORY_WB)
e820_type = E820_TYPE_RAM;
else
e820_type = E820_TYPE_RESERVED;
@@ -190,11 +200,36 @@ static void __init do_add_efi_memmap(void)
e820_type = E820_TYPE_RESERVED;
break;
}
+
e820__range_add(start, size, e820_type);
}
e820__update_table(e820_table);
}
+/*
+ * Given add_efi_memmap defaults to 0 and there there is no alternative
+ * e820 mechanism for soft-reserved memory, import the full EFI memory
+ * map if soft reservations are present and enabled. Otherwise, the
+ * mechanism to disable the kernel's consideration of EFI_MEMORY_SP is
+ * the efi=nosoftreserve option.
+ */
+static bool do_efi_soft_reserve(void)
+{
+ efi_memory_desc_t *md;
+
+ if (!efi_enabled(EFI_MEMMAP))
+ return false;
+
+ if (!efi_soft_reserve_enabled())
+ return false;
+
+ for_each_efi_memory_desc(md)
+ if (md->type == EFI_CONVENTIONAL_MEMORY &&
+ (md->attribute & EFI_MEMORY_SP))
+ return true;
+ return false;
+}
+
int __init efi_memblock_x86_reserve_range(void)
{
struct efi_info *e = &boot_params.efi_info;
@@ -224,9 +259,11 @@ int __init efi_memblock_x86_reserve_range(void)
if (rv)
return rv;
- if (add_efi_memmap)
+ if (add_efi_memmap || do_efi_soft_reserve())
do_add_efi_memmap();
+ efi_fake_memmap_early();
+
WARN(efi.memmap.desc_version != 1,
"Unexpected EFI_MEMORY_DESCRIPTOR version %ld",
efi.memmap.desc_version);
@@ -779,6 +816,15 @@ static bool should_map_region(efi_memory_desc_t *md)
return false;
/*
+ * EFI specific purpose memory may be reserved by default
+ * depending on kernel config and boot options.
+ */
+ if (md->type == EFI_CONVENTIONAL_MEMORY &&
+ efi_soft_reserve_enabled() &&
+ (md->attribute & EFI_MEMORY_SP))
+ return false;
+
+ /*
* Map all of RAM so that we can access arguments in the 1:1
* mapping when making EFI runtime calls.
*/
diff --git a/arch/x86/platform/efi/quirks.c b/arch/x86/platform/efi/quirks.c
index 3b9fd67..7675cf7 100644
--- a/arch/x86/platform/efi/quirks.c
+++ b/arch/x86/platform/efi/quirks.c
@@ -320,6 +320,9 @@ void __init efi_reserve_boot_services(void)
{
efi_memory_desc_t *md;
+ if (!efi_enabled(EFI_MEMMAP))
+ return;
+
for_each_efi_memory_desc(md) {
u64 start = md->phys_addr;
u64 size = md->num_pages << EFI_PAGE_SHIFT;
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index ebe1e9e..4fb9751 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -319,12 +319,6 @@
To compile this driver as a module, choose M here:
the module will be called thermal.
-config ACPI_NUMA
- bool "NUMA support"
- depends on NUMA
- depends on (X86 || IA64 || ARM64)
- default y if IA64 || ARM64
-
config ACPI_CUSTOM_DSDT_FILE
string "Custom DSDT Table file to include"
default ""
@@ -473,8 +467,7 @@
If you are unsure what to do, do not enable this option.
source "drivers/acpi/nfit/Kconfig"
-source "drivers/acpi/hmat/Kconfig"
-
+source "drivers/acpi/numa/Kconfig"
source "drivers/acpi/apei/Kconfig"
source "drivers/acpi/dptf/Kconfig"
@@ -513,11 +506,19 @@
PMIC chip.
if PMIC_OPREGION
-config CRC_PMIC_OPREGION
- bool "ACPI operation region support for CrystalCove PMIC"
+config BYTCRC_PMIC_OPREGION
+ bool "ACPI operation region support for Bay Trail Crystal Cove PMIC"
depends on INTEL_SOC_PMIC
help
- This config adds ACPI operation region support for CrystalCove PMIC.
+ This config adds ACPI operation region support for the Bay Trail
+ version of the Crystal Cove PMIC.
+
+config CHTCRC_PMIC_OPREGION
+ bool "ACPI operation region support for Cherry Trail Crystal Cove PMIC"
+ depends on INTEL_SOC_PMIC
+ help
+ This config adds ACPI operation region support for the Cherry Trail
+ version of the Crystal Cove PMIC.
config XPOWER_PMIC_OPREGION
bool "ACPI operation region support for XPower AXP288 PMIC"
diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile
index 5d361e4..33fdaf6 100644
--- a/drivers/acpi/Makefile
+++ b/drivers/acpi/Makefile
@@ -48,14 +48,13 @@
acpi-$(CONFIG_ARM_AMBA) += acpi_amba.o
acpi-y += power.o
acpi-y += event.o
-acpi-$(CONFIG_ACPI_REDUCED_HARDWARE_ONLY) += evged.o
+acpi-y += evged.o
acpi-y += sysfs.o
acpi-y += property.o
acpi-$(CONFIG_X86) += acpi_cmos_rtc.o
acpi-$(CONFIG_X86) += x86/apple.o
acpi-$(CONFIG_X86) += x86/utils.o
acpi-$(CONFIG_DEBUG_FS) += debugfs.o
-acpi-$(CONFIG_ACPI_NUMA) += numa.o
acpi-$(CONFIG_ACPI_PROCFS_POWER) += cm_sbs.o
acpi-y += acpi_lpat.o
acpi-$(CONFIG_ACPI_LPIT) += acpi_lpit.o
@@ -80,7 +79,7 @@
obj-$(CONFIG_ACPI) += container.o
obj-$(CONFIG_ACPI_THERMAL) += thermal.o
obj-$(CONFIG_ACPI_NFIT) += nfit/
-obj-$(CONFIG_ACPI_HMAT) += hmat/
+obj-$(CONFIG_ACPI_NUMA) += numa/
obj-$(CONFIG_ACPI) += acpi_memhotplug.o
obj-$(CONFIG_ACPI_HOTPLUG_IOAPIC) += ioapic.o
obj-$(CONFIG_ACPI_BATTERY) += battery.o
@@ -109,7 +108,8 @@
obj-$(CONFIG_ACPI_EXTLOG) += acpi_extlog.o
obj-$(CONFIG_PMIC_OPREGION) += pmic/intel_pmic.o
-obj-$(CONFIG_CRC_PMIC_OPREGION) += pmic/intel_pmic_crc.o
+obj-$(CONFIG_BYTCRC_PMIC_OPREGION) += pmic/intel_pmic_bytcrc.o
+obj-$(CONFIG_CHTCRC_PMIC_OPREGION) += pmic/intel_pmic_chtcrc.o
obj-$(CONFIG_XPOWER_PMIC_OPREGION) += pmic/intel_pmic_xpower.o
obj-$(CONFIG_BXT_WC_PMIC_OPREGION) += pmic/intel_pmic_bxtwc.o
obj-$(CONFIG_CHT_WC_PMIC_OPREGION) += pmic/intel_pmic_chtwc.o
diff --git a/drivers/acpi/acpi_configfs.c b/drivers/acpi/acpi_configfs.c
index 57d9d57..ece8c1a 100644
--- a/drivers/acpi/acpi_configfs.c
+++ b/drivers/acpi/acpi_configfs.c
@@ -53,7 +53,7 @@ static ssize_t acpi_table_aml_write(struct config_item *cfg,
if (!table->header)
return -ENOMEM;
- ret = acpi_load_table(table->header);
+ ret = acpi_load_table(table->header, &table->index);
if (ret) {
kfree(table->header);
table->header = NULL;
@@ -223,7 +223,7 @@ static void acpi_table_drop_item(struct config_group *group,
struct acpi_table *table = container_of(cfg, struct acpi_table, cfg);
ACPI_INFO(("Host-directed Dynamic ACPI Table Unload"));
- acpi_tb_unload_table(table->index);
+ acpi_unload_table(table->index);
}
static struct configfs_group_operations acpi_table_group_ops = {
diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c
index 60bbc50..70f740b 100644
--- a/drivers/acpi/acpi_lpss.c
+++ b/drivers/acpi/acpi_lpss.c
@@ -10,6 +10,7 @@
#include <linux/acpi.h>
#include <linux/clkdev.h>
#include <linux/clk-provider.h>
+#include <linux/dmi.h>
#include <linux/err.h>
#include <linux/io.h>
#include <linux/mutex.h>
@@ -463,6 +464,18 @@ struct lpss_device_links {
const char *consumer_hid;
const char *consumer_uid;
u32 flags;
+ const struct dmi_system_id *dep_missing_ids;
+};
+
+/* Please keep this list sorted alphabetically by vendor and model */
+static const struct dmi_system_id i2c1_dep_missing_dmi_ids[] = {
+ {
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "T200TA"),
+ },
+ },
+ {}
};
/*
@@ -473,36 +486,29 @@ struct lpss_device_links {
* the supplier is not enumerated until after the consumer is probed.
*/
static const struct lpss_device_links lpss_device_links[] = {
+ /* CHT External sdcard slot controller depends on PMIC I2C ctrl */
{"808622C1", "7", "80860F14", "3", DL_FLAG_PM_RUNTIME},
+ /* CHT iGPU depends on PMIC I2C controller */
{"808622C1", "7", "LNXVIDEO", NULL, DL_FLAG_PM_RUNTIME},
+ /* BYT iGPU depends on the Embedded Controller I2C controller (UID 1) */
+ {"80860F41", "1", "LNXVIDEO", NULL, DL_FLAG_PM_RUNTIME,
+ i2c1_dep_missing_dmi_ids},
+ /* BYT CR iGPU depends on PMIC I2C controller (UID 5 on CR) */
{"80860F41", "5", "LNXVIDEO", NULL, DL_FLAG_PM_RUNTIME},
+ /* BYT iGPU depends on PMIC I2C controller (UID 7 on non CR) */
+ {"80860F41", "7", "LNXVIDEO", NULL, DL_FLAG_PM_RUNTIME},
};
-static bool hid_uid_match(struct acpi_device *adev,
- const char *hid2, const char *uid2)
-{
- const char *hid1 = acpi_device_hid(adev);
- const char *uid1 = acpi_device_uid(adev);
-
- if (strcmp(hid1, hid2))
- return false;
-
- if (!uid2)
- return true;
-
- return uid1 && !strcmp(uid1, uid2);
-}
-
static bool acpi_lpss_is_supplier(struct acpi_device *adev,
const struct lpss_device_links *link)
{
- return hid_uid_match(adev, link->supplier_hid, link->supplier_uid);
+ return acpi_dev_hid_uid_match(adev, link->supplier_hid, link->supplier_uid);
}
static bool acpi_lpss_is_consumer(struct acpi_device *adev,
const struct lpss_device_links *link)
{
- return hid_uid_match(adev, link->consumer_hid, link->consumer_uid);
+ return acpi_dev_hid_uid_match(adev, link->consumer_hid, link->consumer_uid);
}
struct hid_uid {
@@ -518,7 +524,7 @@ static int match_hid_uid(struct device *dev, const void *data)
if (!adev)
return 0;
- return hid_uid_match(adev, id->hid, id->uid);
+ return acpi_dev_hid_uid_match(adev, id->hid, id->uid);
}
static struct device *acpi_lpss_find_device(const char *hid, const char *uid)
@@ -570,7 +576,8 @@ static void acpi_lpss_link_consumer(struct device *dev1,
if (!dev2)
return;
- if (acpi_lpss_dep(ACPI_COMPANION(dev2), ACPI_HANDLE(dev1)))
+ if ((link->dep_missing_ids && dmi_check_system(link->dep_missing_ids))
+ || acpi_lpss_dep(ACPI_COMPANION(dev2), ACPI_HANDLE(dev1)))
device_link_add(dev2, dev1, link->flags);
put_device(dev2);
@@ -585,7 +592,8 @@ static void acpi_lpss_link_supplier(struct device *dev1,
if (!dev2)
return;
- if (acpi_lpss_dep(ACPI_COMPANION(dev1), ACPI_HANDLE(dev2)))
+ if ((link->dep_missing_ids && dmi_check_system(link->dep_missing_ids))
+ || acpi_lpss_dep(ACPI_COMPANION(dev1), ACPI_HANDLE(dev2)))
device_link_add(dev1, dev2, link->flags);
put_device(dev2);
diff --git a/drivers/acpi/acpi_platform.c b/drivers/acpi/acpi_platform.c
index 00ec4f2..c05050f 100644
--- a/drivers/acpi/acpi_platform.c
+++ b/drivers/acpi/acpi_platform.c
@@ -31,6 +31,44 @@ static const struct acpi_device_id forbidden_id_list[] = {
{"", 0},
};
+static struct platform_device *acpi_platform_device_find_by_companion(struct acpi_device *adev)
+{
+ struct device *dev;
+
+ dev = bus_find_device_by_acpi_dev(&platform_bus_type, adev);
+ return dev ? to_platform_device(dev) : NULL;
+}
+
+static int acpi_platform_device_remove_notify(struct notifier_block *nb,
+ unsigned long value, void *arg)
+{
+ struct acpi_device *adev = arg;
+ struct platform_device *pdev;
+
+ switch (value) {
+ case ACPI_RECONFIG_DEVICE_ADD:
+ /* Nothing to do here */
+ break;
+ case ACPI_RECONFIG_DEVICE_REMOVE:
+ if (!acpi_device_enumerated(adev))
+ break;
+
+ pdev = acpi_platform_device_find_by_companion(adev);
+ if (!pdev)
+ break;
+
+ platform_device_unregister(pdev);
+ put_device(&pdev->dev);
+ break;
+ }
+
+ return NOTIFY_OK;
+}
+
+static struct notifier_block acpi_platform_notifier = {
+ .notifier_call = acpi_platform_device_remove_notify,
+};
+
static void acpi_platform_fill_resource(struct acpi_device *adev,
const struct resource *src, struct resource *dest)
{
@@ -130,3 +168,8 @@ struct platform_device *acpi_create_platform_device(struct acpi_device *adev,
return pdev;
}
EXPORT_SYMBOL_GPL(acpi_create_platform_device);
+
+void __init acpi_platform_init(void)
+{
+ acpi_reconfig_notifier_register(&acpi_platform_notifier);
+}
diff --git a/drivers/acpi/acpi_video.c b/drivers/acpi/acpi_video.c
index 4f325e4..2f380e7 100644
--- a/drivers/acpi/acpi_video.c
+++ b/drivers/acpi/acpi_video.c
@@ -699,9 +699,13 @@ acpi_video_device_EDID(struct acpi_video_device *device,
* event notify code.
* lcd_flag :
* 0. The system BIOS should automatically control the brightness level
- * of the LCD when the power changes from AC to DC
+ * of the LCD when:
+ * - the power changes from AC to DC (ACPI appendix B)
+ * - a brightness hotkey gets pressed (implied by Win7/8 backlight docs)
* 1. The system BIOS should NOT automatically control the brightness
- * level of the LCD when the power changes from AC to DC.
+ * level of the LCD when:
+ * - the power changes from AC to DC (ACPI appendix B)
+ * - a brightness hotkey gets pressed (implied by Win7/8 backlight docs)
* Return Value:
* -EINVAL wrong arg.
*/
diff --git a/drivers/acpi/acpica/acdebug.h b/drivers/acpi/acpica/acdebug.h
index 32f2e38..694cf20 100644
--- a/drivers/acpi/acpica/acdebug.h
+++ b/drivers/acpi/acpica/acdebug.h
@@ -148,6 +148,8 @@ void acpi_db_find_references(char *object_arg);
void acpi_db_get_bus_info(void);
+acpi_status acpi_db_display_fields(u32 address_space_id);
+
/*
* dbdisply - debug display commands
*/
diff --git a/drivers/acpi/acpica/acstruct.h b/drivers/acpi/acpica/acstruct.h
index 218ff4c..2043dff 100644
--- a/drivers/acpi/acpica/acstruct.h
+++ b/drivers/acpi/acpica/acstruct.h
@@ -192,6 +192,16 @@ struct acpi_device_walk_info {
u32 num_INI;
};
+/* Info used by Acpi acpi_db_display_fields */
+
+struct acpi_region_walk_info {
+ u32 debug_level;
+ u32 count;
+ acpi_owner_id owner_id;
+ u8 display_type;
+ u32 address_space_id;
+};
+
/* TBD: [Restructure] Merge with struct above */
struct acpi_walk_info {
diff --git a/drivers/acpi/acpica/acutils.h b/drivers/acpi/acpica/acutils.h
index 601808b..5fb5063 100644
--- a/drivers/acpi/acpica/acutils.h
+++ b/drivers/acpi/acpica/acutils.h
@@ -142,10 +142,11 @@ struct acpi_pkg_info {
/* acpi_ut_dump_buffer */
-#define DB_BYTE_DISPLAY 1
-#define DB_WORD_DISPLAY 2
-#define DB_DWORD_DISPLAY 4
-#define DB_QWORD_DISPLAY 8
+#define DB_BYTE_DISPLAY 0x01
+#define DB_WORD_DISPLAY 0x02
+#define DB_DWORD_DISPLAY 0x04
+#define DB_QWORD_DISPLAY 0x08
+#define DB_DISPLAY_DATA_ONLY 0x10
/*
* utascii - ASCII utilities
diff --git a/drivers/acpi/acpica/dbconvert.c b/drivers/acpi/acpica/dbconvert.c
index 9fd9a98..2b84ac0 100644
--- a/drivers/acpi/acpica/dbconvert.c
+++ b/drivers/acpi/acpica/dbconvert.c
@@ -106,6 +106,10 @@ acpi_db_convert_to_buffer(char *string, union acpi_object *object)
u8 *buffer;
acpi_status status;
+ /* Skip all preceding white space */
+
+ acpi_ut_remove_whitespace(&string);
+
/* Generate the final buffer length */
for (i = 0, length = 0; string[i];) {
diff --git a/drivers/acpi/acpica/dbdisply.c b/drivers/acpi/acpica/dbdisply.c
index 30ab62b..f2df416 100644
--- a/drivers/acpi/acpica/dbdisply.c
+++ b/drivers/acpi/acpica/dbdisply.c
@@ -513,7 +513,6 @@ void acpi_db_display_results(void)
return;
}
- obj_desc = walk_state->method_desc;
node = walk_state->method_node;
if (walk_state->results) {
@@ -565,7 +564,6 @@ void acpi_db_display_calling_tree(void)
return;
}
- node = walk_state->method_node;
acpi_os_printf("Current Control Method Call Tree\n");
while (walk_state) {
diff --git a/drivers/acpi/acpica/dbfileio.c b/drivers/acpi/acpica/dbfileio.c
index c6e2573..e1b6e54 100644
--- a/drivers/acpi/acpica/dbfileio.c
+++ b/drivers/acpi/acpica/dbfileio.c
@@ -93,7 +93,7 @@ acpi_status acpi_db_load_tables(struct acpi_new_table_desc *list_head)
while (table_list_head) {
table = table_list_head->table;
- status = acpi_load_table(table);
+ status = acpi_load_table(table, NULL);
if (ACPI_FAILURE(status)) {
if (status == AE_ALREADY_EXISTS) {
acpi_os_printf
diff --git a/drivers/acpi/acpica/dbinput.c b/drivers/acpi/acpica/dbinput.c
index 55a7e10..e1632b3 100644
--- a/drivers/acpi/acpica/dbinput.c
+++ b/drivers/acpi/acpica/dbinput.c
@@ -50,6 +50,7 @@ enum acpi_ex_debugger_commands {
CMD_EVALUATE,
CMD_EXECUTE,
CMD_EXIT,
+ CMD_FIELDS,
CMD_FIND,
CMD_GO,
CMD_HANDLERS,
@@ -127,6 +128,7 @@ static const struct acpi_db_command_info acpi_gbl_db_commands[] = {
{"EVALUATE", 1},
{"EXECUTE", 1},
{"EXIT", 0},
+ {"FIELDS", 1},
{"FIND", 1},
{"GO", 0},
{"HANDLERS", 0},
@@ -200,6 +202,8 @@ static const struct acpi_db_command_help acpi_gbl_db_command_help[] = {
"Find ACPI name(s) with wildcards\n"},
{1, " Integrity", "Validate namespace integrity\n"},
{1, " Methods", "Display list of loaded control methods\n"},
+ {1, " Fields <AddressSpaceId>",
+ "Display list of loaded field units by space ID\n"},
{1, " Namespace [Object] [Depth]",
"Display loaded namespace tree/subtree\n"},
{1, " Notify <Object> <Value>", "Send a notification on Object\n"},
@@ -507,6 +511,21 @@ char *acpi_db_get_next_token(char *string,
}
break;
+ case '{':
+
+ /* This is the start of a field unit, scan until closing brace */
+
+ string++;
+ start = string;
+ type = ACPI_TYPE_FIELD_UNIT;
+
+ /* Find end of buffer */
+
+ while (*string && (*string != '}')) {
+ string++;
+ }
+ break;
+
case '[':
/* This is the start of a package, scan until closing bracket */
@@ -674,6 +693,7 @@ acpi_db_command_dispatch(char *input_buffer,
union acpi_parse_object *op)
{
u32 temp;
+ u64 temp64;
u32 command_index;
u32 param_count;
char *command_line;
@@ -689,7 +709,6 @@ acpi_db_command_dispatch(char *input_buffer,
param_count = acpi_db_get_line(input_buffer);
command_index = acpi_db_match_command(acpi_gbl_db_args[0]);
- temp = 0;
/*
* We don't want to add the !! command to the history buffer. It
@@ -790,6 +809,21 @@ acpi_db_command_dispatch(char *input_buffer,
status = acpi_db_find_name_in_namespace(acpi_gbl_db_args[1]);
break;
+ case CMD_FIELDS:
+
+ status = acpi_ut_strtoul64(acpi_gbl_db_args[1], &temp64);
+
+ if (ACPI_FAILURE(status)
+ || temp64 >= ACPI_NUM_PREDEFINED_REGIONS) {
+ acpi_os_printf
+ ("Invalid adress space ID: must be between 0 and %u inclusive\n",
+ ACPI_NUM_PREDEFINED_REGIONS - 1);
+ return (AE_OK);
+ }
+
+ status = acpi_db_display_fields((u32)temp64);
+ break;
+
case CMD_GO:
acpi_gbl_cm_single_step = FALSE;
diff --git a/drivers/acpi/acpica/dbmethod.c b/drivers/acpi/acpica/dbmethod.c
index 76a15b6..4e48a7d 100644
--- a/drivers/acpi/acpica/dbmethod.c
+++ b/drivers/acpi/acpica/dbmethod.c
@@ -321,6 +321,10 @@ acpi_status acpi_db_disassemble_method(char *name)
walk_state->parse_flags |= ACPI_PARSE_DISASSEMBLE;
status = acpi_ps_parse_aml(walk_state);
+ if (ACPI_FAILURE(status)) {
+ return (status);
+ }
+
(void)acpi_dm_parse_deferred_ops(op);
/* Now we can disassemble the method */
diff --git a/drivers/acpi/acpica/dbnames.c b/drivers/acpi/acpica/dbnames.c
index 63fe30e..3615e1a 100644
--- a/drivers/acpi/acpica/dbnames.c
+++ b/drivers/acpi/acpica/dbnames.c
@@ -10,6 +10,7 @@
#include "acnamesp.h"
#include "acdebug.h"
#include "acpredef.h"
+#include "acinterp.h"
#define _COMPONENT ACPI_CA_DEBUGGER
ACPI_MODULE_NAME("dbnames")
@@ -504,6 +505,86 @@ acpi_db_walk_for_object_counts(acpi_handle obj_handle,
/*******************************************************************************
*
+ * FUNCTION: acpi_db_walk_for_fields
+ *
+ * PARAMETERS: Callback from walk_namespace
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Display short info about objects in the namespace
+ *
+ ******************************************************************************/
+
+static acpi_status
+acpi_db_walk_for_fields(acpi_handle obj_handle,
+ u32 nesting_level, void *context, void **return_value)
+{
+ union acpi_object *ret_value;
+ struct acpi_region_walk_info *info =
+ (struct acpi_region_walk_info *)context;
+ struct acpi_buffer buffer;
+ acpi_status status;
+ struct acpi_namespace_node *node = acpi_ns_validate_handle(obj_handle);
+
+ if (!node) {
+ return (AE_OK);
+ }
+ if (node->object->field.region_obj->region.space_id !=
+ info->address_space_id) {
+ return (AE_OK);
+ }
+
+ info->count++;
+
+ /* Get and display the full pathname to this object */
+
+ buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER;
+ status = acpi_ns_handle_to_pathname(obj_handle, &buffer, TRUE);
+ if (ACPI_FAILURE(status)) {
+ acpi_os_printf("Could Not get pathname for object %p\n",
+ obj_handle);
+ return (AE_OK);
+ }
+
+ acpi_os_printf("%s ", (char *)buffer.pointer);
+ ACPI_FREE(buffer.pointer);
+
+ buffer.length = ACPI_ALLOCATE_LOCAL_BUFFER;
+ acpi_evaluate_object(obj_handle, NULL, NULL, &buffer);
+
+ /*
+ * Since this is a field unit, surround the output in braces
+ */
+ acpi_os_printf("{");
+
+ ret_value = (union acpi_object *)buffer.pointer;
+ switch (ret_value->type) {
+ case ACPI_TYPE_INTEGER:
+
+ acpi_os_printf("%8.8X%8.8X",
+ ACPI_FORMAT_UINT64(ret_value->integer.value));
+ break;
+
+ case ACPI_TYPE_BUFFER:
+
+ acpi_ut_dump_buffer(ret_value->buffer.pointer,
+ ret_value->buffer.length,
+ DB_DISPLAY_DATA_ONLY | DB_BYTE_DISPLAY, 0);
+ break;
+
+ default:
+
+ break;
+ }
+ acpi_os_printf("}\n");
+
+ ACPI_FREE(buffer.pointer);
+
+ return (AE_OK);
+}
+
+/*******************************************************************************
+ *
* FUNCTION: acpi_db_walk_for_specific_objects
*
* PARAMETERS: Callback from walk_namespace
@@ -630,6 +711,39 @@ acpi_status acpi_db_display_objects(char *obj_type_arg, char *display_count_arg)
/*******************************************************************************
*
+ * FUNCTION: acpi_db_display_fields
+ *
+ * PARAMETERS: obj_type_arg - Type of object to display
+ * display_count_arg - Max depth to display
+ *
+ * RETURN: None
+ *
+ * DESCRIPTION: Display objects in the namespace of the requested type
+ *
+ ******************************************************************************/
+
+acpi_status acpi_db_display_fields(u32 address_space_id)
+{
+ struct acpi_region_walk_info info;
+
+ info.count = 0;
+ info.owner_id = ACPI_OWNER_ID_MAX;
+ info.debug_level = ACPI_UINT32_MAX;
+ info.display_type = ACPI_DISPLAY_SUMMARY | ACPI_DISPLAY_SHORT;
+ info.address_space_id = address_space_id;
+
+ /* Walk the namespace from the root */
+
+ (void)acpi_walk_namespace(ACPI_TYPE_LOCAL_REGION_FIELD,
+ ACPI_ROOT_OBJECT, ACPI_UINT32_MAX,
+ acpi_db_walk_for_fields, NULL, (void *)&info,
+ NULL);
+
+ return (AE_OK);
+}
+
+/*******************************************************************************
+ *
* FUNCTION: acpi_db_integrity_walk
*
* PARAMETERS: Callback from walk_namespace
diff --git a/drivers/acpi/acpica/dbobject.c b/drivers/acpi/acpica/dbobject.c
index f9fc84b..4b4c530 100644
--- a/drivers/acpi/acpica/dbobject.c
+++ b/drivers/acpi/acpica/dbobject.c
@@ -464,7 +464,6 @@ void acpi_db_decode_arguments(struct acpi_walk_state *walk_state)
u8 display_args = FALSE;
node = walk_state->method_node;
- obj_desc = walk_state->method_desc;
/* There are no arguments for the module-level code case */
diff --git a/drivers/acpi/acpica/dscontrol.c b/drivers/acpi/acpica/dscontrol.c
index 4847f89..5034fab 100644
--- a/drivers/acpi/acpica/dscontrol.c
+++ b/drivers/acpi/acpica/dscontrol.c
@@ -85,7 +85,7 @@ acpi_ds_exec_begin_control_op(struct acpi_walk_state *walk_state,
walk_state->parser_state.pkg_end;
control_state->control.opcode = op->common.aml_opcode;
control_state->control.loop_timeout = acpi_os_get_timer() +
- (u64)(acpi_gbl_max_loop_iterations * ACPI_100NSEC_PER_SEC);
+ ((u64)acpi_gbl_max_loop_iterations * ACPI_100NSEC_PER_SEC);
/* Push the control state on this walk's control stack */
diff --git a/drivers/acpi/acpica/dsfield.c b/drivers/acpi/acpica/dsfield.c
index cf4e061..faa38a2 100644
--- a/drivers/acpi/acpica/dsfield.c
+++ b/drivers/acpi/acpica/dsfield.c
@@ -149,7 +149,6 @@ acpi_ds_create_buffer_field(union acpi_parse_object *op,
if (walk_state->deferred_node) {
node = walk_state->deferred_node;
- status = AE_OK;
} else {
/* Execute flag should always be set when this function is entered */
@@ -264,7 +263,6 @@ acpi_ds_get_field_names(struct acpi_create_field_info *info,
union acpi_parse_object *child;
#ifdef ACPI_EXEC_APP
- u64 value = 0;
union acpi_operand_object *result_desc;
union acpi_operand_object *obj_desc;
char *name_path;
@@ -406,19 +404,17 @@ acpi_ds_get_field_names(struct acpi_create_field_info *info,
name_path =
acpi_ns_get_external_pathname(info->
field_node);
- obj_desc =
- acpi_ut_create_integer_object
- (value);
if (ACPI_SUCCESS
(ae_lookup_init_file_entry
- (name_path, &value))) {
+ (name_path, &obj_desc))) {
acpi_ex_write_data_to_field
(obj_desc,
acpi_ns_get_attached_object
(info->field_node),
&result_desc);
+ acpi_ut_remove_reference
+ (obj_desc);
}
- acpi_ut_remove_reference(obj_desc);
ACPI_FREE(name_path);
#endif
}
@@ -636,8 +632,6 @@ acpi_ds_init_field_objects(union acpi_parse_object *op,
}
/* Name already exists, just ignore this error */
-
- status = AE_OK;
}
arg->common.node = node;
diff --git a/drivers/acpi/acpica/evgpeblk.c b/drivers/acpi/acpica/evgpeblk.c
index fb15e9e..9c7adaa 100644
--- a/drivers/acpi/acpica/evgpeblk.c
+++ b/drivers/acpi/acpica/evgpeblk.c
@@ -110,6 +110,9 @@ acpi_status acpi_ev_delete_gpe_block(struct acpi_gpe_block_info *gpe_block)
status =
acpi_hw_disable_gpe_block(gpe_block->xrupt_block, gpe_block, NULL);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
if (!gpe_block->previous && !gpe_block->next) {
@@ -359,10 +362,10 @@ acpi_ev_create_gpe_block(struct acpi_namespace_node *gpe_device,
walk_info.gpe_device = gpe_device;
walk_info.execute_by_owner_id = FALSE;
- status = acpi_ns_walk_namespace(ACPI_TYPE_METHOD, gpe_device,
- ACPI_UINT32_MAX, ACPI_NS_WALK_NO_UNLOCK,
- acpi_ev_match_gpe_method, NULL,
- &walk_info, NULL);
+ (void)acpi_ns_walk_namespace(ACPI_TYPE_METHOD, gpe_device,
+ ACPI_UINT32_MAX, ACPI_NS_WALK_NO_UNLOCK,
+ acpi_ev_match_gpe_method, NULL, &walk_info,
+ NULL);
/* Return the new block */
diff --git a/drivers/acpi/acpica/evgpeinit.c b/drivers/acpi/acpica/evgpeinit.c
index b04f982..70d21d5 100644
--- a/drivers/acpi/acpica/evgpeinit.c
+++ b/drivers/acpi/acpica/evgpeinit.c
@@ -156,8 +156,6 @@ acpi_status acpi_ev_gpe_initialize(void)
* GPE0 and GPE1 do not have to be contiguous in the GPE number
* space. However, GPE0 always starts at GPE number zero.
*/
- gpe_number_max = acpi_gbl_FADT.gpe1_base +
- ((register_count1 * ACPI_GPE_REGISTER_WIDTH) - 1);
}
}
@@ -169,7 +167,6 @@ acpi_status acpi_ev_gpe_initialize(void)
ACPI_DEBUG_PRINT((ACPI_DB_INIT,
"There are no GPE blocks defined in the FADT\n"));
- status = AE_OK;
goto cleanup;
}
diff --git a/drivers/acpi/acpica/evmisc.c b/drivers/acpi/acpica/evmisc.c
index d45f763..aa98fe0 100644
--- a/drivers/acpi/acpica/evmisc.c
+++ b/drivers/acpi/acpica/evmisc.c
@@ -230,11 +230,15 @@ void acpi_ev_terminate(void)
/* Disable all GPEs in all GPE blocks */
status = acpi_ev_walk_gpe_list(acpi_hw_disable_gpe_block, NULL);
+ if (ACPI_FAILURE(status)) {
+ ACPI_EXCEPTION((AE_INFO, status,
+ "Could not disable GPEs in GPE block"));
+ }
status = acpi_ev_remove_global_lock_handler();
if (ACPI_FAILURE(status)) {
- ACPI_ERROR((AE_INFO,
- "Could not remove Global Lock handler"));
+ ACPI_EXCEPTION((AE_INFO, status,
+ "Could not remove Global Lock handler"));
}
acpi_gbl_events_initialized = FALSE;
@@ -250,6 +254,10 @@ void acpi_ev_terminate(void)
/* Deallocate all handler objects installed within GPE info structs */
status = acpi_ev_walk_gpe_list(acpi_ev_delete_gpe_handlers, NULL);
+ if (ACPI_FAILURE(status)) {
+ ACPI_EXCEPTION((AE_INFO, status,
+ "Could not delete GPE handlers"));
+ }
/* Return to original mode if necessary */
diff --git a/drivers/acpi/acpica/evregion.c b/drivers/acpi/acpica/evregion.c
index 45dc797..1ff1264 100644
--- a/drivers/acpi/acpica/evregion.c
+++ b/drivers/acpi/acpica/evregion.c
@@ -836,11 +836,11 @@ acpi_ev_orphan_ec_reg_method(struct acpi_namespace_node *ec_device_node)
objects[1].type = ACPI_TYPE_INTEGER;
objects[1].integer.value = ACPI_REG_CONNECT;
- status = acpi_evaluate_object(reg_method, NULL, &args, NULL);
+ (void)acpi_evaluate_object(reg_method, NULL, &args, NULL);
exit:
/* We ignore all errors from above, don't care */
- status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
+ (void)acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE);
return_VOID;
}
diff --git a/drivers/acpi/acpica/evrgnini.c b/drivers/acpi/acpica/evrgnini.c
index 0b47bbc..aee0964 100644
--- a/drivers/acpi/acpica/evrgnini.c
+++ b/drivers/acpi/acpica/evrgnini.c
@@ -198,7 +198,6 @@ acpi_ev_pci_config_region_setup(acpi_handle handle,
* root bridge. Still need to return a context object
* for the new PCI_Config operation region, however.
*/
- status = AE_OK;
} else {
ACPI_EXCEPTION((AE_INFO, status,
"Could not install PciConfig handler "
diff --git a/drivers/acpi/acpica/hwxfsleep.c b/drivers/acpi/acpica/hwxfsleep.c
index abbf970..2919746 100644
--- a/drivers/acpi/acpica/hwxfsleep.c
+++ b/drivers/acpi/acpica/hwxfsleep.c
@@ -166,6 +166,9 @@ acpi_status acpi_enter_sleep_state_s4bios(void)
status = acpi_hw_write_port(acpi_gbl_FADT.smi_command,
(u32)acpi_gbl_FADT.s4_bios_request, 8);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
do {
acpi_os_stall(ACPI_USEC_PER_MSEC);
diff --git a/drivers/acpi/acpica/nsconvert.c b/drivers/acpi/acpica/nsconvert.c
index 14cbf63..c86d077 100644
--- a/drivers/acpi/acpica/nsconvert.c
+++ b/drivers/acpi/acpica/nsconvert.c
@@ -486,5 +486,5 @@ acpi_ns_convert_to_reference(struct acpi_namespace_node *scope,
error_exit:
ACPI_FREE(name);
*return_object = new_object;
- return (AE_OK);
+ return (status);
}
diff --git a/drivers/acpi/acpica/nsdump.c b/drivers/acpi/acpica/nsdump.c
index 9731d7c..9ad340f 100644
--- a/drivers/acpi/acpica/nsdump.c
+++ b/drivers/acpi/acpica/nsdump.c
@@ -291,7 +291,7 @@ acpi_ns_dump_one_object(acpi_handle obj_handle,
for (i = 0;
(i < obj_desc->buffer.length
&& i < 12); i++) {
- acpi_os_printf(" %.2hX",
+ acpi_os_printf(" %2.2X",
obj_desc->buffer.
pointer[i]);
}
@@ -404,7 +404,7 @@ acpi_ns_dump_one_object(acpi_handle obj_handle,
case ACPI_TYPE_LOCAL_BANK_FIELD:
case ACPI_TYPE_LOCAL_INDEX_FIELD:
- acpi_os_printf(" Off %.3X Len %.2X Acc %.2hd\n",
+ acpi_os_printf(" Off %.3X Len %.2X Acc %.2X\n",
(obj_desc->common_field.
base_byte_offset * 8)
+
@@ -589,8 +589,6 @@ acpi_ns_dump_one_object(acpi_handle obj_handle,
goto cleanup;
}
-
- obj_type = ACPI_TYPE_INVALID; /* Terminate loop after next pass */
}
cleanup:
diff --git a/drivers/acpi/acpica/nsxfname.c b/drivers/acpi/acpica/nsxfname.c
index 55b4a5b..161e60d 100644
--- a/drivers/acpi/acpica/nsxfname.c
+++ b/drivers/acpi/acpica/nsxfname.c
@@ -425,8 +425,8 @@ acpi_get_object_info(acpi_handle handle,
}
if (cls) {
- next_id_string = acpi_ns_copy_device_id(&info->class_code,
- cls, next_id_string);
+ (void)acpi_ns_copy_device_id(&info->class_code,
+ cls, next_id_string);
}
/* Copy the fixed-length data */
diff --git a/drivers/acpi/acpica/psobject.c b/drivers/acpi/acpica/psobject.c
index 98e5c74..ded2779 100644
--- a/drivers/acpi/acpica/psobject.c
+++ b/drivers/acpi/acpica/psobject.c
@@ -481,8 +481,7 @@ acpi_ps_complete_op(struct acpi_walk_state *walk_state,
walk_state->opcode = (*op)->common.aml_opcode;
status = walk_state->ascending_callback(walk_state);
- status =
- acpi_ps_next_parse_state(walk_state, *op, status);
+ (void)acpi_ps_next_parse_state(walk_state, *op, status);
status2 = acpi_ps_complete_this_op(walk_state, *op);
if (ACPI_FAILURE(status2)) {
@@ -490,7 +489,6 @@ acpi_ps_complete_op(struct acpi_walk_state *walk_state,
}
}
- status = AE_OK;
break;
case AE_CTRL_BREAK:
@@ -512,14 +510,13 @@ acpi_ps_complete_op(struct acpi_walk_state *walk_state,
walk_state->opcode = (*op)->common.aml_opcode;
status = walk_state->ascending_callback(walk_state);
- status = acpi_ps_next_parse_state(walk_state, *op, status);
+ (void)acpi_ps_next_parse_state(walk_state, *op, status);
status2 = acpi_ps_complete_this_op(walk_state, *op);
if (ACPI_FAILURE(status2)) {
return_ACPI_STATUS(status2);
}
- status = AE_OK;
break;
case AE_CTRL_TERMINATE:
diff --git a/drivers/acpi/acpica/rscreate.c b/drivers/acpi/acpica/rscreate.c
index 570ea0d..c659b54 100644
--- a/drivers/acpi/acpica/rscreate.c
+++ b/drivers/acpi/acpica/rscreate.c
@@ -312,6 +312,9 @@ acpi_rs_create_pci_routing_table(union acpi_operand_object *package_object,
path_buffer.pointer = user_prt->source;
status = acpi_ns_handle_to_pathname((acpi_handle)node, &path_buffer, FALSE);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
/* +1 to include null terminator */
diff --git a/drivers/acpi/acpica/tbdata.c b/drivers/acpi/acpica/tbdata.c
index 3094400..2cf3645 100644
--- a/drivers/acpi/acpica/tbdata.c
+++ b/drivers/acpi/acpica/tbdata.c
@@ -933,6 +933,9 @@ acpi_tb_load_table(u32 table_index, struct acpi_namespace_node *parent_node)
}
status = acpi_ns_load_table(table_index, parent_node);
+ if (ACPI_FAILURE(status)) {
+ return_ACPI_STATUS(status);
+ }
/*
* Update GPEs for any new _Lxx/_Exx methods. Ignore errors. The host is
diff --git a/drivers/acpi/acpica/tbxfload.c b/drivers/acpi/acpica/tbxfload.c
index 86f1693..0782acf 100644
--- a/drivers/acpi/acpica/tbxfload.c
+++ b/drivers/acpi/acpica/tbxfload.c
@@ -268,6 +268,8 @@ ACPI_EXPORT_SYMBOL_INIT(acpi_install_table)
*
* PARAMETERS: table - Pointer to a buffer containing the ACPI
* table to be loaded.
+ * table_idx - Pointer to a u32 for storing the table
+ * index, might be NULL
*
* RETURN: Status
*
@@ -278,7 +280,7 @@ ACPI_EXPORT_SYMBOL_INIT(acpi_install_table)
* to ensure that the table is not deleted or unmapped.
*
******************************************************************************/
-acpi_status acpi_load_table(struct acpi_table_header *table)
+acpi_status acpi_load_table(struct acpi_table_header *table, u32 *table_idx)
{
acpi_status status;
u32 table_index;
@@ -297,6 +299,10 @@ acpi_status acpi_load_table(struct acpi_table_header *table)
status = acpi_tb_install_and_load_table(ACPI_PTR_TO_PHYSADDR(table),
ACPI_TABLE_ORIGIN_EXTERNAL_VIRTUAL,
FALSE, &table_index);
+ if (table_idx) {
+ *table_idx = table_index;
+ }
+
if (ACPI_SUCCESS(status)) {
/* Complete the initialization/resolution of new objects */
@@ -390,3 +396,35 @@ acpi_status acpi_unload_parent_table(acpi_handle object)
}
ACPI_EXPORT_SYMBOL(acpi_unload_parent_table)
+/*******************************************************************************
+ *
+ * FUNCTION: acpi_unload_table
+ *
+ * PARAMETERS: table_index - Index as returned by acpi_load_table
+ *
+ * RETURN: Status
+ *
+ * DESCRIPTION: Via the table_index representing an SSDT or OEMx table, unloads
+ * the table and deletes all namespace objects associated with
+ * that table. Unloading of the DSDT is not allowed.
+ * Note: Mainly intended to support hotplug removal of SSDTs.
+ *
+ ******************************************************************************/
+acpi_status acpi_unload_table(u32 table_index)
+{
+ acpi_status status;
+
+ ACPI_FUNCTION_TRACE(acpi_unload_table);
+
+ if (table_index == 1) {
+
+ /* table_index==1 means DSDT is the owner. DSDT cannot be unloaded */
+
+ return_ACPI_STATUS(AE_TYPE);
+ }
+
+ status = acpi_tb_unload_table(table_index);
+ return_ACPI_STATUS(status);
+}
+
+ACPI_EXPORT_SYMBOL(acpi_unload_table)
diff --git a/drivers/acpi/acpica/utbuffer.c b/drivers/acpi/acpica/utbuffer.c
index 61db996..db897af 100644
--- a/drivers/acpi/acpica/utbuffer.c
+++ b/drivers/acpi/acpica/utbuffer.c
@@ -37,7 +37,9 @@ void acpi_ut_dump_buffer(u8 *buffer, u32 count, u32 display, u32 base_offset)
u32 j;
u32 temp32;
u8 buf_char;
+ u32 display_data_only = display & DB_DISPLAY_DATA_ONLY;
+ display &= ~DB_DISPLAY_DATA_ONLY;
if (!buffer) {
acpi_os_printf("Null Buffer Pointer in DumpBuffer!\n");
return;
@@ -53,7 +55,9 @@ void acpi_ut_dump_buffer(u8 *buffer, u32 count, u32 display, u32 base_offset)
/* Print current offset */
- acpi_os_printf("%8.4X: ", (base_offset + i));
+ if (!display_data_only) {
+ acpi_os_printf("%8.4X: ", (base_offset + i));
+ }
/* Print 16 hex chars */
@@ -109,32 +113,34 @@ void acpi_ut_dump_buffer(u8 *buffer, u32 count, u32 display, u32 base_offset)
* Print the ASCII equivalent characters but watch out for the bad
* unprintable ones (printable chars are 0x20 through 0x7E)
*/
- acpi_os_printf(" ");
- for (j = 0; j < 16; j++) {
- if (i + j >= count) {
- acpi_os_printf("\n");
- return;
+ if (!display_data_only) {
+ acpi_os_printf(" ");
+ for (j = 0; j < 16; j++) {
+ if (i + j >= count) {
+ acpi_os_printf("\n");
+ return;
+ }
+
+ /*
+ * Add comment characters so rest of line is ignored when
+ * compiled
+ */
+ if (j == 0) {
+ acpi_os_printf("// ");
+ }
+
+ buf_char = buffer[(acpi_size)i + j];
+ if (isprint(buf_char)) {
+ acpi_os_printf("%c", buf_char);
+ } else {
+ acpi_os_printf(".");
+ }
}
- /*
- * Add comment characters so rest of line is ignored when
- * compiled
- */
- if (j == 0) {
- acpi_os_printf("// ");
- }
+ /* Done with that line. */
- buf_char = buffer[(acpi_size)i + j];
- if (isprint(buf_char)) {
- acpi_os_printf("%c", buf_char);
- } else {
- acpi_os_printf(".");
- }
+ acpi_os_printf("\n");
}
-
- /* Done with that line. */
-
- acpi_os_printf("\n");
i += 16;
}
diff --git a/drivers/acpi/acpica/utids.c b/drivers/acpi/acpica/utids.c
index e805abd..30198c8 100644
--- a/drivers/acpi/acpica/utids.c
+++ b/drivers/acpi/acpica/utids.c
@@ -289,9 +289,7 @@ acpi_ut_execute_CID(struct acpi_namespace_node *device_node,
value);
length = ACPI_EISAID_STRING_SIZE;
} else { /* ACPI_TYPE_STRING */
-
/* Copy the String CID from the returned object */
-
strcpy(next_id_string, cid_objects[i]->string.pointer);
length = cid_objects[i]->string.length + 1;
}
diff --git a/drivers/acpi/acpica/uttrack.c b/drivers/acpi/acpica/uttrack.c
index 8052f7e..14de4d1 100644
--- a/drivers/acpi/acpica/uttrack.c
+++ b/drivers/acpi/acpica/uttrack.c
@@ -660,7 +660,7 @@ void acpi_ut_dump_allocations(u32 component, const char *module)
case ACPI_DESC_TYPE_PARSER:
acpi_os_printf
- ("AmlOpcode 0x%04hX\n",
+ ("AmlOpcode 0x%04X\n",
descriptor->op.asl.
aml_opcode);
break;
diff --git a/drivers/acpi/button.c b/drivers/acpi/button.c
index 4a2cde2..d27b01c 100644
--- a/drivers/acpi/button.c
+++ b/drivers/acpi/button.c
@@ -44,9 +44,19 @@
#define ACPI_BUTTON_DEVICE_NAME_LID "Lid Switch"
#define ACPI_BUTTON_TYPE_LID 0x05
-#define ACPI_BUTTON_LID_INIT_IGNORE 0x00
-#define ACPI_BUTTON_LID_INIT_OPEN 0x01
-#define ACPI_BUTTON_LID_INIT_METHOD 0x02
+enum {
+ ACPI_BUTTON_LID_INIT_IGNORE,
+ ACPI_BUTTON_LID_INIT_OPEN,
+ ACPI_BUTTON_LID_INIT_METHOD,
+ ACPI_BUTTON_LID_INIT_DISABLED,
+};
+
+static const char * const lid_init_state_str[] = {
+ [ACPI_BUTTON_LID_INIT_IGNORE] = "ignore",
+ [ACPI_BUTTON_LID_INIT_OPEN] = "open",
+ [ACPI_BUTTON_LID_INIT_METHOD] = "method",
+ [ACPI_BUTTON_LID_INIT_DISABLED] = "disabled",
+};
#define _COMPONENT ACPI_BUTTON_COMPONENT
ACPI_MODULE_NAME("button");
@@ -65,18 +75,39 @@ static const struct acpi_device_id button_device_ids[] = {
};
MODULE_DEVICE_TABLE(acpi, button_device_ids);
-/*
- * Some devices which don't even have a lid in anyway have a broken _LID
- * method (e.g. pointing to a floating gpio pin) causing spurious LID events.
- */
-static const struct dmi_system_id lid_blacklst[] = {
+/* Please keep this list sorted alphabetically by vendor and model */
+static const struct dmi_system_id dmi_lid_quirks[] = {
{
- /* GP-electronic T701 */
+ /*
+ * Asus T200TA, _LID keeps reporting closed after every second
+ * openening of the lid. Causing immediate re-suspend after
+ * opening every other open. Using LID_INIT_OPEN fixes this.
+ */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK COMPUTER INC."),
+ DMI_MATCH(DMI_PRODUCT_NAME, "T200TA"),
+ },
+ .driver_data = (void *)(long)ACPI_BUTTON_LID_INIT_OPEN,
+ },
+ {
+ /* GP-electronic T701, _LID method points to a floating GPIO */
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Insyde"),
DMI_MATCH(DMI_PRODUCT_NAME, "T701"),
DMI_MATCH(DMI_BIOS_VERSION, "BYT70A.YNCHENG.WIN.007"),
},
+ .driver_data = (void *)(long)ACPI_BUTTON_LID_INIT_DISABLED,
+ },
+ {
+ /*
+ * Medion Akoya E2215T, notification of the LID device only
+ * happens on close, not on open and _LID always returns closed.
+ */
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "MEDION"),
+ DMI_MATCH(DMI_PRODUCT_NAME, "E2215T MD60198"),
+ },
+ .driver_data = (void *)(long)ACPI_BUTTON_LID_INIT_OPEN,
},
{}
};
@@ -116,9 +147,8 @@ struct acpi_button {
bool suspended;
};
-static BLOCKING_NOTIFIER_HEAD(acpi_lid_notifier);
static struct acpi_device *lid_device;
-static u8 lid_init_state = ACPI_BUTTON_LID_INIT_METHOD;
+static long lid_init_state = -1;
static unsigned long lid_report_interval __read_mostly = 500;
module_param(lid_report_interval, ulong, 0644);
@@ -146,7 +176,6 @@ static int acpi_lid_evaluate_state(struct acpi_device *device)
static int acpi_lid_notify_state(struct acpi_device *device, int state)
{
struct acpi_button *button = acpi_driver_data(device);
- int ret;
ktime_t next_report;
bool do_update;
@@ -223,18 +252,7 @@ static int acpi_lid_notify_state(struct acpi_device *device, int state)
button->last_time = ktime_get();
}
- ret = blocking_notifier_call_chain(&acpi_lid_notifier, state, device);
- if (ret == NOTIFY_DONE)
- ret = blocking_notifier_call_chain(&acpi_lid_notifier, state,
- device);
- if (ret == NOTIFY_DONE || ret == NOTIFY_OK) {
- /*
- * It is also regarded as success if the notifier_chain
- * returns NOTIFY_OK or NOTIFY_DONE.
- */
- ret = 0;
- }
- return ret;
+ return 0;
}
static int __maybe_unused acpi_button_state_seq_show(struct seq_file *seq,
@@ -331,18 +349,6 @@ static int acpi_button_remove_fs(struct acpi_device *device)
/* --------------------------------------------------------------------------
Driver Interface
-------------------------------------------------------------------------- */
-int acpi_lid_notifier_register(struct notifier_block *nb)
-{
- return blocking_notifier_chain_register(&acpi_lid_notifier, nb);
-}
-EXPORT_SYMBOL(acpi_lid_notifier_register);
-
-int acpi_lid_notifier_unregister(struct notifier_block *nb)
-{
- return blocking_notifier_chain_unregister(&acpi_lid_notifier, nb);
-}
-EXPORT_SYMBOL(acpi_lid_notifier_unregister);
-
int acpi_lid_open(void)
{
if (!lid_device)
@@ -472,7 +478,8 @@ static int acpi_button_add(struct acpi_device *device)
char *name, *class;
int error;
- if (!strcmp(hid, ACPI_BUTTON_HID_LID) && dmi_check_system(lid_blacklst))
+ if (!strcmp(hid, ACPI_BUTTON_HID_LID) &&
+ lid_init_state == ACPI_BUTTON_LID_INIT_DISABLED)
return -ENODEV;
button = kzalloc(sizeof(struct acpi_button), GFP_KERNEL);
@@ -578,36 +585,30 @@ static int acpi_button_remove(struct acpi_device *device)
static int param_set_lid_init_state(const char *val,
const struct kernel_param *kp)
{
- int result = 0;
+ int i;
- if (!strncmp(val, "open", sizeof("open") - 1)) {
- lid_init_state = ACPI_BUTTON_LID_INIT_OPEN;
- pr_info("Notify initial lid state as open\n");
- } else if (!strncmp(val, "method", sizeof("method") - 1)) {
- lid_init_state = ACPI_BUTTON_LID_INIT_METHOD;
- pr_info("Notify initial lid state with _LID return value\n");
- } else if (!strncmp(val, "ignore", sizeof("ignore") - 1)) {
- lid_init_state = ACPI_BUTTON_LID_INIT_IGNORE;
- pr_info("Do not notify initial lid state\n");
- } else
- result = -EINVAL;
- return result;
+ i = sysfs_match_string(lid_init_state_str, val);
+ if (i < 0)
+ return i;
+
+ lid_init_state = i;
+ pr_info("Initial lid state set to '%s'\n", lid_init_state_str[i]);
+ return 0;
}
-static int param_get_lid_init_state(char *buffer,
- const struct kernel_param *kp)
+static int param_get_lid_init_state(char *buf, const struct kernel_param *kp)
{
- switch (lid_init_state) {
- case ACPI_BUTTON_LID_INIT_OPEN:
- return sprintf(buffer, "open");
- case ACPI_BUTTON_LID_INIT_METHOD:
- return sprintf(buffer, "method");
- case ACPI_BUTTON_LID_INIT_IGNORE:
- return sprintf(buffer, "ignore");
- default:
- return sprintf(buffer, "invalid");
- }
- return 0;
+ int i, c = 0;
+
+ for (i = 0; i < ARRAY_SIZE(lid_init_state_str); i++)
+ if (i == lid_init_state)
+ c += sprintf(buf + c, "[%s] ", lid_init_state_str[i]);
+ else
+ c += sprintf(buf + c, "%s ", lid_init_state_str[i]);
+
+ buf[c - 1] = '\n'; /* Replace the final space with a newline */
+
+ return c;
}
module_param_call(lid_init_state,
@@ -617,6 +618,16 @@ MODULE_PARM_DESC(lid_init_state, "Behavior for reporting LID initial state");
static int acpi_button_register_driver(struct acpi_driver *driver)
{
+ const struct dmi_system_id *dmi_id;
+
+ if (lid_init_state == -1) {
+ dmi_id = dmi_first_match(dmi_lid_quirks);
+ if (dmi_id)
+ lid_init_state = (long)dmi_id->driver_data;
+ else
+ lid_init_state = ACPI_BUTTON_LID_INIT_METHOD;
+ }
+
/*
* Modules such as nouveau.ko and i915.ko have a link time dependency
* on acpi_lid_open(), and would therefore not be loadable on ACPI
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index bd75caf..d05be13c 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -95,12 +95,12 @@ enum {
EC_FLAGS_QUERY_ENABLED, /* Query is enabled */
EC_FLAGS_QUERY_PENDING, /* Query is pending */
EC_FLAGS_QUERY_GUARDING, /* Guard for SCI_EVT check */
- EC_FLAGS_GPE_HANDLER_INSTALLED, /* GPE handler installed */
+ EC_FLAGS_EVENT_HANDLER_INSTALLED, /* Event handler installed */
EC_FLAGS_EC_HANDLER_INSTALLED, /* OpReg handler installed */
- EC_FLAGS_EVT_HANDLER_INSTALLED, /* _Qxx handlers installed */
+ EC_FLAGS_QUERY_METHODS_INSTALLED, /* _Qxx handlers installed */
EC_FLAGS_STARTED, /* Driver is started */
EC_FLAGS_STOPPED, /* Driver is stopped */
- EC_FLAGS_GPE_MASKED, /* GPE masked */
+ EC_FLAGS_EVENTS_MASKED, /* Events masked */
};
#define ACPI_EC_COMMAND_POLL 0x01 /* Available for command byte */
@@ -397,8 +397,8 @@ static inline void acpi_ec_clear_gpe(struct acpi_ec *ec)
static void acpi_ec_submit_request(struct acpi_ec *ec)
{
ec->reference_count++;
- if (test_bit(EC_FLAGS_GPE_HANDLER_INSTALLED, &ec->flags) &&
- ec->reference_count == 1)
+ if (test_bit(EC_FLAGS_EVENT_HANDLER_INSTALLED, &ec->flags) &&
+ ec->gpe >= 0 && ec->reference_count == 1)
acpi_ec_enable_gpe(ec, true);
}
@@ -407,28 +407,36 @@ static void acpi_ec_complete_request(struct acpi_ec *ec)
bool flushed = false;
ec->reference_count--;
- if (test_bit(EC_FLAGS_GPE_HANDLER_INSTALLED, &ec->flags) &&
- ec->reference_count == 0)
+ if (test_bit(EC_FLAGS_EVENT_HANDLER_INSTALLED, &ec->flags) &&
+ ec->gpe >= 0 && ec->reference_count == 0)
acpi_ec_disable_gpe(ec, true);
flushed = acpi_ec_flushed(ec);
if (flushed)
wake_up(&ec->wait);
}
-static void acpi_ec_mask_gpe(struct acpi_ec *ec)
+static void acpi_ec_mask_events(struct acpi_ec *ec)
{
- if (!test_bit(EC_FLAGS_GPE_MASKED, &ec->flags)) {
- acpi_ec_disable_gpe(ec, false);
+ if (!test_bit(EC_FLAGS_EVENTS_MASKED, &ec->flags)) {
+ if (ec->gpe >= 0)
+ acpi_ec_disable_gpe(ec, false);
+ else
+ disable_irq_nosync(ec->irq);
+
ec_dbg_drv("Polling enabled");
- set_bit(EC_FLAGS_GPE_MASKED, &ec->flags);
+ set_bit(EC_FLAGS_EVENTS_MASKED, &ec->flags);
}
}
-static void acpi_ec_unmask_gpe(struct acpi_ec *ec)
+static void acpi_ec_unmask_events(struct acpi_ec *ec)
{
- if (test_bit(EC_FLAGS_GPE_MASKED, &ec->flags)) {
- clear_bit(EC_FLAGS_GPE_MASKED, &ec->flags);
- acpi_ec_enable_gpe(ec, false);
+ if (test_bit(EC_FLAGS_EVENTS_MASKED, &ec->flags)) {
+ clear_bit(EC_FLAGS_EVENTS_MASKED, &ec->flags);
+ if (ec->gpe >= 0)
+ acpi_ec_enable_gpe(ec, false);
+ else
+ enable_irq(ec->irq);
+
ec_dbg_drv("Polling disabled");
}
}
@@ -454,7 +462,7 @@ static bool acpi_ec_submit_flushable_request(struct acpi_ec *ec)
static void acpi_ec_submit_query(struct acpi_ec *ec)
{
- acpi_ec_mask_gpe(ec);
+ acpi_ec_mask_events(ec);
if (!acpi_ec_event_enabled(ec))
return;
if (!test_and_set_bit(EC_FLAGS_QUERY_PENDING, &ec->flags)) {
@@ -470,7 +478,7 @@ static void acpi_ec_complete_query(struct acpi_ec *ec)
if (test_and_clear_bit(EC_FLAGS_QUERY_PENDING, &ec->flags))
ec_dbg_evt("Command(%s) unblocked",
acpi_ec_cmd_string(ACPI_EC_COMMAND_QUERY));
- acpi_ec_unmask_gpe(ec);
+ acpi_ec_unmask_events(ec);
}
static inline void __acpi_ec_enable_event(struct acpi_ec *ec)
@@ -638,7 +646,9 @@ static void advance_transaction(struct acpi_ec *ec)
* ensure a hardware STS 0->1 change after this clearing can always
* trigger a GPE interrupt.
*/
- acpi_ec_clear_gpe(ec);
+ if (ec->gpe >= 0)
+ acpi_ec_clear_gpe(ec);
+
status = acpi_ec_read_status(ec);
t = ec->curr;
/*
@@ -707,7 +717,7 @@ static void advance_transaction(struct acpi_ec *ec)
++t->irq_count;
/* Allow triggering on 0 threshold */
if (t->irq_count == ec_storm_threshold)
- acpi_ec_mask_gpe(ec);
+ acpi_ec_mask_events(ec);
}
}
out:
@@ -805,7 +815,7 @@ static int acpi_ec_transaction_unlocked(struct acpi_ec *ec,
spin_lock_irqsave(&ec->lock, tmp);
if (t->irq_count == ec_storm_threshold)
- acpi_ec_unmask_gpe(ec);
+ acpi_ec_unmask_events(ec);
ec_dbg_req("Command(%s) stopped", acpi_ec_cmd_string(t->command));
ec->curr = NULL;
/* Disable GPE for command processing (IBF=0/OBF=1) */
@@ -1265,18 +1275,28 @@ static void acpi_ec_event_handler(struct work_struct *work)
acpi_ec_check_event(ec);
}
-static u32 acpi_ec_gpe_handler(acpi_handle gpe_device,
- u32 gpe_number, void *data)
+static void acpi_ec_handle_interrupt(struct acpi_ec *ec)
{
unsigned long flags;
- struct acpi_ec *ec = data;
spin_lock_irqsave(&ec->lock, flags);
advance_transaction(ec);
spin_unlock_irqrestore(&ec->lock, flags);
+}
+
+static u32 acpi_ec_gpe_handler(acpi_handle gpe_device,
+ u32 gpe_number, void *data)
+{
+ acpi_ec_handle_interrupt(data);
return ACPI_INTERRUPT_HANDLED;
}
+static irqreturn_t acpi_ec_irq_handler(int irq, void *data)
+{
+ acpi_ec_handle_interrupt(data);
+ return IRQ_HANDLED;
+}
+
/* --------------------------------------------------------------------------
* Address Space Management
* -------------------------------------------------------------------------- */
@@ -1349,6 +1369,8 @@ static struct acpi_ec *acpi_ec_alloc(void)
ec->timestamp = jiffies;
ec->busy_polling = true;
ec->polling_guard = 0;
+ ec->gpe = -1;
+ ec->irq = -1;
return ec;
}
@@ -1396,9 +1418,13 @@ ec_parse_device(acpi_handle handle, u32 Level, void *context, void **retval)
/* Get GPE bit assignment (EC events). */
/* TODO: Add support for _GPE returning a package */
status = acpi_evaluate_integer(handle, "_GPE", NULL, &tmp);
- if (ACPI_FAILURE(status))
- return status;
- ec->gpe = tmp;
+ if (ACPI_SUCCESS(status))
+ ec->gpe = tmp;
+
+ /*
+ * Errors are non-fatal, allowing for ACPI Reduced Hardware
+ * platforms which use GpioInt instead of GPE.
+ */
}
/* Use the global lock for all EC transactions? */
tmp = 0;
@@ -1408,12 +1434,57 @@ ec_parse_device(acpi_handle handle, u32 Level, void *context, void **retval)
return AE_CTRL_TERMINATE;
}
+static void install_gpe_event_handler(struct acpi_ec *ec)
+{
+ acpi_status status =
+ acpi_install_gpe_raw_handler(NULL, ec->gpe,
+ ACPI_GPE_EDGE_TRIGGERED,
+ &acpi_ec_gpe_handler,
+ ec);
+ if (ACPI_SUCCESS(status)) {
+ /* This is not fatal as we can poll EC events */
+ set_bit(EC_FLAGS_EVENT_HANDLER_INSTALLED, &ec->flags);
+ acpi_ec_leave_noirq(ec);
+ if (test_bit(EC_FLAGS_STARTED, &ec->flags) &&
+ ec->reference_count >= 1)
+ acpi_ec_enable_gpe(ec, true);
+ }
+}
+
+/* ACPI reduced hardware platforms use a GpioInt specified in _CRS. */
+static int install_gpio_irq_event_handler(struct acpi_ec *ec,
+ struct acpi_device *device)
+{
+ int irq = acpi_dev_gpio_irq_get(device, 0);
+ int ret;
+
+ if (irq < 0)
+ return irq;
+
+ ret = request_irq(irq, acpi_ec_irq_handler, IRQF_SHARED,
+ "ACPI EC", ec);
+
+ /*
+ * Unlike the GPE case, we treat errors here as fatal, we'll only
+ * implement GPIO polling if we find a case that needs it.
+ */
+ if (ret < 0)
+ return ret;
+
+ ec->irq = irq;
+ set_bit(EC_FLAGS_EVENT_HANDLER_INSTALLED, &ec->flags);
+ acpi_ec_leave_noirq(ec);
+
+ return 0;
+}
+
/*
* Note: This function returns an error code only when the address space
* handler is not installed, which means "not able to handle
* transactions".
*/
-static int ec_install_handlers(struct acpi_ec *ec, bool handle_events)
+static int ec_install_handlers(struct acpi_ec *ec, struct acpi_device *device,
+ bool handle_events)
{
acpi_status status;
@@ -1446,24 +1517,23 @@ static int ec_install_handlers(struct acpi_ec *ec, bool handle_events)
if (!handle_events)
return 0;
- if (!test_bit(EC_FLAGS_EVT_HANDLER_INSTALLED, &ec->flags)) {
+ if (!test_bit(EC_FLAGS_QUERY_METHODS_INSTALLED, &ec->flags)) {
/* Find and register all query methods */
acpi_walk_namespace(ACPI_TYPE_METHOD, ec->handle, 1,
acpi_ec_register_query_methods,
NULL, ec, NULL);
- set_bit(EC_FLAGS_EVT_HANDLER_INSTALLED, &ec->flags);
+ set_bit(EC_FLAGS_QUERY_METHODS_INSTALLED, &ec->flags);
}
- if (!test_bit(EC_FLAGS_GPE_HANDLER_INSTALLED, &ec->flags)) {
- status = acpi_install_gpe_raw_handler(NULL, ec->gpe,
- ACPI_GPE_EDGE_TRIGGERED,
- &acpi_ec_gpe_handler, ec);
- /* This is not fatal as we can poll EC events */
- if (ACPI_SUCCESS(status)) {
- set_bit(EC_FLAGS_GPE_HANDLER_INSTALLED, &ec->flags);
- acpi_ec_leave_noirq(ec);
- if (test_bit(EC_FLAGS_STARTED, &ec->flags) &&
- ec->reference_count >= 1)
- acpi_ec_enable_gpe(ec, true);
+ if (!test_bit(EC_FLAGS_EVENT_HANDLER_INSTALLED, &ec->flags)) {
+ if (ec->gpe >= 0) {
+ install_gpe_event_handler(ec);
+ } else if (device) {
+ int ret = install_gpio_irq_event_handler(ec, device);
+
+ if (ret)
+ return ret;
+ } else { /* No GPE and no GpioInt? */
+ return -ENODEV;
}
}
/* EC is fully operational, allow queries */
@@ -1494,23 +1564,29 @@ static void ec_remove_handlers(struct acpi_ec *ec)
*/
acpi_ec_stop(ec, false);
- if (test_bit(EC_FLAGS_GPE_HANDLER_INSTALLED, &ec->flags)) {
- if (ACPI_FAILURE(acpi_remove_gpe_handler(NULL, ec->gpe,
- &acpi_ec_gpe_handler)))
+ if (test_bit(EC_FLAGS_EVENT_HANDLER_INSTALLED, &ec->flags)) {
+ if (ec->gpe >= 0 &&
+ ACPI_FAILURE(acpi_remove_gpe_handler(NULL, ec->gpe,
+ &acpi_ec_gpe_handler)))
pr_err("failed to remove gpe handler\n");
- clear_bit(EC_FLAGS_GPE_HANDLER_INSTALLED, &ec->flags);
+
+ if (ec->irq >= 0)
+ free_irq(ec->irq, ec);
+
+ clear_bit(EC_FLAGS_EVENT_HANDLER_INSTALLED, &ec->flags);
}
- if (test_bit(EC_FLAGS_EVT_HANDLER_INSTALLED, &ec->flags)) {
+ if (test_bit(EC_FLAGS_QUERY_METHODS_INSTALLED, &ec->flags)) {
acpi_ec_remove_query_handlers(ec, true, 0);
- clear_bit(EC_FLAGS_EVT_HANDLER_INSTALLED, &ec->flags);
+ clear_bit(EC_FLAGS_QUERY_METHODS_INSTALLED, &ec->flags);
}
}
-static int acpi_ec_setup(struct acpi_ec *ec, bool handle_events)
+static int acpi_ec_setup(struct acpi_ec *ec, struct acpi_device *device,
+ bool handle_events)
{
int ret;
- ret = ec_install_handlers(ec, handle_events);
+ ret = ec_install_handlers(ec, device, handle_events);
if (ret)
return ret;
@@ -1521,8 +1597,8 @@ static int acpi_ec_setup(struct acpi_ec *ec, bool handle_events)
}
acpi_handle_info(ec->handle,
- "GPE=0x%x, EC_CMD/EC_SC=0x%lx, EC_DATA=0x%lx\n",
- ec->gpe, ec->command_addr, ec->data_addr);
+ "GPE=0x%x, IRQ=%d, EC_CMD/EC_SC=0x%lx, EC_DATA=0x%lx\n",
+ ec->gpe, ec->irq, ec->command_addr, ec->data_addr);
return ret;
}
@@ -1586,7 +1662,7 @@ static int acpi_ec_add(struct acpi_device *device)
}
}
- ret = acpi_ec_setup(ec, true);
+ ret = acpi_ec_setup(ec, device, true);
if (ret)
goto err_query;
@@ -1706,7 +1782,7 @@ void __init acpi_ec_dsdt_probe(void)
* At this point, the GPE is not fully initialized, so do not to
* handle the events.
*/
- ret = acpi_ec_setup(ec, false);
+ ret = acpi_ec_setup(ec, NULL, false);
if (ret) {
acpi_ec_free(ec);
return;
@@ -1879,14 +1955,21 @@ void __init acpi_ec_ecdt_probe(void)
ec->command_addr = ecdt_ptr->control.address;
ec->data_addr = ecdt_ptr->data.address;
}
- ec->gpe = ecdt_ptr->gpe;
+
+ /*
+ * Ignore the GPE value on Reduced Hardware platforms.
+ * Some products have this set to an erroneous value.
+ */
+ if (!acpi_gbl_reduced_hardware)
+ ec->gpe = ecdt_ptr->gpe;
+
ec->handle = ACPI_ROOT_OBJECT;
/*
* At this point, the namespace is not initialized, so do not find
* the namespace objects, or handle the events.
*/
- ret = acpi_ec_setup(ec, false);
+ ret = acpi_ec_setup(ec, NULL, false);
if (ret) {
acpi_ec_free(ec);
return;
@@ -1918,7 +2001,7 @@ static int acpi_ec_suspend_noirq(struct device *dev)
* masked at the low level without side effects.
*/
if (ec_no_wakeup && test_bit(EC_FLAGS_STARTED, &ec->flags) &&
- ec->reference_count >= 1)
+ ec->gpe >= 0 && ec->reference_count >= 1)
acpi_set_gpe(NULL, ec->gpe, ACPI_GPE_DISABLE);
acpi_ec_enter_noirq(ec);
@@ -1933,7 +2016,7 @@ static int acpi_ec_resume_noirq(struct device *dev)
acpi_ec_leave_noirq(ec);
if (ec_no_wakeup && test_bit(EC_FLAGS_STARTED, &ec->flags) &&
- ec->reference_count >= 1)
+ ec->gpe >= 0 && ec->reference_count >= 1)
acpi_set_gpe(NULL, ec->gpe, ACPI_GPE_ENABLE);
return 0;
diff --git a/drivers/acpi/hmat/Makefile b/drivers/acpi/hmat/Makefile
deleted file mode 100644
index 1c20ef3..0000000
--- a/drivers/acpi/hmat/Makefile
+++ /dev/null
@@ -1,2 +0,0 @@
-# SPDX-License-Identifier: GPL-2.0-only
-obj-$(CONFIG_ACPI_HMAT) := hmat.o
diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
index afe6636..3616dae 100644
--- a/drivers/acpi/internal.h
+++ b/drivers/acpi/internal.h
@@ -165,7 +165,8 @@ static inline void acpi_early_processor_osc(void) {}
-------------------------------------------------------------------------- */
struct acpi_ec {
acpi_handle handle;
- u32 gpe;
+ int gpe;
+ int irq;
unsigned long command_addr;
unsigned long data_addr;
bool global_lock;
diff --git a/drivers/acpi/hmat/Kconfig b/drivers/acpi/numa/Kconfig
similarity index 75%
rename from drivers/acpi/hmat/Kconfig
rename to drivers/acpi/numa/Kconfig
index 95a2996..fcf2e55 100644
--- a/drivers/acpi/hmat/Kconfig
+++ b/drivers/acpi/numa/Kconfig
@@ -1,8 +1,15 @@
# SPDX-License-Identifier: GPL-2.0
+config ACPI_NUMA
+ bool "NUMA support"
+ depends on NUMA
+ depends on (X86 || IA64 || ARM64)
+ default y if IA64 || ARM64
+
config ACPI_HMAT
bool "ACPI Heterogeneous Memory Attribute Table Support"
depends on ACPI_NUMA
select HMEM_REPORTING
+ select MEMREGION
help
If set, this option has the kernel parse and report the
platform's ACPI HMAT (Heterogeneous Memory Attributes Table),
diff --git a/drivers/acpi/numa/Makefile b/drivers/acpi/numa/Makefile
new file mode 100644
index 0000000..517a6c6
--- /dev/null
+++ b/drivers/acpi/numa/Makefile
@@ -0,0 +1,3 @@
+# SPDX-License-Identifier: GPL-2.0-only
+obj-$(CONFIG_ACPI_NUMA) += srat.o
+obj-$(CONFIG_ACPI_HMAT) += hmat.o
diff --git a/drivers/acpi/hmat/hmat.c b/drivers/acpi/numa/hmat.c
similarity index 82%
rename from drivers/acpi/hmat/hmat.c
rename to drivers/acpi/numa/hmat.c
index 8b0de8a..2c32cfb 100644
--- a/drivers/acpi/hmat/hmat.c
+++ b/drivers/acpi/numa/hmat.c
@@ -8,12 +8,18 @@
* the applicable attributes with the node's interfaces.
*/
+#define pr_fmt(fmt) "acpi/hmat: " fmt
+#define dev_fmt(fmt) "acpi/hmat: " fmt
+
#include <linux/acpi.h>
#include <linux/bitops.h>
#include <linux/device.h>
#include <linux/init.h>
#include <linux/list.h>
+#include <linux/mm.h>
+#include <linux/platform_device.h>
#include <linux/list_sort.h>
+#include <linux/memregion.h>
#include <linux/memory.h>
#include <linux/mutex.h>
#include <linux/node.h>
@@ -49,6 +55,7 @@ struct memory_target {
struct list_head node;
unsigned int memory_pxm;
unsigned int processor_pxm;
+ struct resource memregions;
struct node_hmem_attrs hmem_attrs;
struct list_head caches;
struct node_cache_attrs cache_attrs;
@@ -104,22 +111,36 @@ static __init void alloc_memory_initiator(unsigned int cpu_pxm)
list_add_tail(&initiator->node, &initiators);
}
-static __init void alloc_memory_target(unsigned int mem_pxm)
+static __init void alloc_memory_target(unsigned int mem_pxm,
+ resource_size_t start, resource_size_t len)
{
struct memory_target *target;
target = find_mem_target(mem_pxm);
- if (target)
- return;
+ if (!target) {
+ target = kzalloc(sizeof(*target), GFP_KERNEL);
+ if (!target)
+ return;
+ target->memory_pxm = mem_pxm;
+ target->processor_pxm = PXM_INVAL;
+ target->memregions = (struct resource) {
+ .name = "ACPI mem",
+ .start = 0,
+ .end = -1,
+ .flags = IORESOURCE_MEM,
+ };
+ list_add_tail(&target->node, &targets);
+ INIT_LIST_HEAD(&target->caches);
+ }
- target = kzalloc(sizeof(*target), GFP_KERNEL);
- if (!target)
- return;
-
- target->memory_pxm = mem_pxm;
- target->processor_pxm = PXM_INVAL;
- list_add_tail(&target->node, &targets);
- INIT_LIST_HEAD(&target->caches);
+ /*
+ * There are potentially multiple ranges per PXM, so record each
+ * in the per-target memregions resource tree.
+ */
+ if (!__request_region(&target->memregions, start, len, "memory target",
+ IORESOURCE_MEM))
+ pr_warn("failed to reserve %#llx - %#llx in pxm: %d\n",
+ start, start + len, mem_pxm);
}
static __init const char *hmat_data_type(u8 type)
@@ -272,7 +293,7 @@ static __init int hmat_parse_locality(union acpi_subtable_headers *header,
u8 type, mem_hier;
if (hmat_loc->header.length < sizeof(*hmat_loc)) {
- pr_notice("HMAT: Unexpected locality header length: %d\n",
+ pr_notice("HMAT: Unexpected locality header length: %u\n",
hmat_loc->header.length);
return -EINVAL;
}
@@ -284,12 +305,12 @@ static __init int hmat_parse_locality(union acpi_subtable_headers *header,
total_size = sizeof(*hmat_loc) + sizeof(*entries) * ipds * tpds +
sizeof(*inits) * ipds + sizeof(*targs) * tpds;
if (hmat_loc->header.length < total_size) {
- pr_notice("HMAT: Unexpected locality header length:%d, minimum required:%d\n",
+ pr_notice("HMAT: Unexpected locality header length:%u, minimum required:%u\n",
hmat_loc->header.length, total_size);
return -EINVAL;
}
- pr_info("HMAT: Locality: Flags:%02x Type:%s Initiator Domains:%d Target Domains:%d Base:%lld\n",
+ pr_info("HMAT: Locality: Flags:%02x Type:%s Initiator Domains:%u Target Domains:%u Base:%lld\n",
hmat_loc->flags, hmat_data_type(type), ipds, tpds,
hmat_loc->entry_base_unit);
@@ -302,7 +323,7 @@ static __init int hmat_parse_locality(union acpi_subtable_headers *header,
value = hmat_normalize(entries[init * tpds + targ],
hmat_loc->entry_base_unit,
type);
- pr_info(" Initiator-Target[%d-%d]:%d%s\n",
+ pr_info(" Initiator-Target[%u-%u]:%u%s\n",
inits[init], targs[targ], value,
hmat_data_type_suffix(type));
@@ -329,13 +350,13 @@ static __init int hmat_parse_cache(union acpi_subtable_headers *header,
u32 attrs;
if (cache->header.length < sizeof(*cache)) {
- pr_notice("HMAT: Unexpected cache header length: %d\n",
+ pr_notice("HMAT: Unexpected cache header length: %u\n",
cache->header.length);
return -EINVAL;
}
attrs = cache->cache_attributes;
- pr_info("HMAT: Cache: Domain:%d Size:%llu Attrs:%08x SMBIOS Handles:%d\n",
+ pr_info("HMAT: Cache: Domain:%u Size:%llu Attrs:%08x SMBIOS Handles:%d\n",
cache->memory_PD, cache->cache_size, attrs,
cache->number_of_SMBIOShandles);
@@ -390,17 +411,17 @@ static int __init hmat_parse_proximity_domain(union acpi_subtable_headers *heade
struct memory_target *target = NULL;
if (p->header.length != sizeof(*p)) {
- pr_notice("HMAT: Unexpected address range header length: %d\n",
+ pr_notice("HMAT: Unexpected address range header length: %u\n",
p->header.length);
return -EINVAL;
}
if (hmat_revision == 1)
- pr_info("HMAT: Memory (%#llx length %#llx) Flags:%04x Processor Domain:%d Memory Domain:%d\n",
+ pr_info("HMAT: Memory (%#llx length %#llx) Flags:%04x Processor Domain:%u Memory Domain:%u\n",
p->reserved3, p->reserved4, p->flags, p->processor_PD,
p->memory_PD);
else
- pr_info("HMAT: Memory Flags:%04x Processor Domain:%d Memory Domain:%d\n",
+ pr_info("HMAT: Memory Flags:%04x Processor Domain:%u Memory Domain:%u\n",
p->flags, p->processor_PD, p->memory_PD);
if (p->flags & ACPI_HMAT_MEMORY_PD_VALID && hmat_revision == 1) {
@@ -417,7 +438,7 @@ static int __init hmat_parse_proximity_domain(union acpi_subtable_headers *heade
pr_debug("HMAT: Invalid Processor Domain\n");
return -EINVAL;
}
- target->processor_pxm = p_node;
+ target->processor_pxm = p->processor_PD;
}
return 0;
@@ -452,7 +473,7 @@ static __init int srat_parse_mem_affinity(union acpi_subtable_headers *header,
return -EINVAL;
if (!(ma->flags & ACPI_SRAT_MEM_ENABLED))
return 0;
- alloc_memory_target(ma->proximity_domain);
+ alloc_memory_target(ma->proximity_domain, ma->base_address, ma->length);
return 0;
}
@@ -613,11 +634,92 @@ static void hmat_register_target_perf(struct memory_target *target)
node_set_perf_attrs(mem_nid, &target->hmem_attrs, 0);
}
+static void hmat_register_target_device(struct memory_target *target,
+ struct resource *r)
+{
+ /* define a clean / non-busy resource for the platform device */
+ struct resource res = {
+ .start = r->start,
+ .end = r->end,
+ .flags = IORESOURCE_MEM,
+ };
+ struct platform_device *pdev;
+ struct memregion_info info;
+ int rc, id;
+
+ rc = region_intersects(res.start, resource_size(&res), IORESOURCE_MEM,
+ IORES_DESC_SOFT_RESERVED);
+ if (rc != REGION_INTERSECTS)
+ return;
+
+ id = memregion_alloc(GFP_KERNEL);
+ if (id < 0) {
+ pr_err("memregion allocation failure for %pr\n", &res);
+ return;
+ }
+
+ pdev = platform_device_alloc("hmem", id);
+ if (!pdev) {
+ pr_err("hmem device allocation failure for %pr\n", &res);
+ goto out_pdev;
+ }
+
+ pdev->dev.numa_node = acpi_map_pxm_to_online_node(target->memory_pxm);
+ info = (struct memregion_info) {
+ .target_node = acpi_map_pxm_to_node(target->memory_pxm),
+ };
+ rc = platform_device_add_data(pdev, &info, sizeof(info));
+ if (rc < 0) {
+ pr_err("hmem memregion_info allocation failure for %pr\n", &res);
+ goto out_pdev;
+ }
+
+ rc = platform_device_add_resources(pdev, &res, 1);
+ if (rc < 0) {
+ pr_err("hmem resource allocation failure for %pr\n", &res);
+ goto out_resource;
+ }
+
+ rc = platform_device_add(pdev);
+ if (rc < 0) {
+ dev_err(&pdev->dev, "device add failed for %pr\n", &res);
+ goto out_resource;
+ }
+
+ return;
+
+out_resource:
+ put_device(&pdev->dev);
+out_pdev:
+ memregion_free(id);
+}
+
+static void hmat_register_target_devices(struct memory_target *target)
+{
+ struct resource *res;
+
+ /*
+ * Do not bother creating devices if no driver is available to
+ * consume them.
+ */
+ if (!IS_ENABLED(CONFIG_DEV_DAX_HMEM))
+ return;
+
+ for (res = target->memregions.child; res; res = res->sibling)
+ hmat_register_target_device(target, res);
+}
+
static void hmat_register_target(struct memory_target *target)
{
int nid = pxm_to_node(target->memory_pxm);
/*
+ * Devices may belong to either an offline or online
+ * node, so unconditionally add them.
+ */
+ hmat_register_target_devices(target);
+
+ /*
* Skip offline nodes. This can happen when memory
* marked EFI_MEMORY_SP, "specific purpose", is applied
* to all the memory in a promixity domain leading to
@@ -677,11 +779,21 @@ static __init void hmat_free_structures(void)
struct target_cache *tcache, *cnext;
list_for_each_entry_safe(target, tnext, &targets, node) {
+ struct resource *res, *res_next;
+
list_for_each_entry_safe(tcache, cnext, &target->caches, node) {
list_del(&tcache->node);
kfree(tcache);
}
+
list_del(&target->node);
+ res = target->memregions.child;
+ while (res) {
+ res_next = res->sibling;
+ __release_region(&target->memregions, res->start,
+ resource_size(res));
+ res = res_next;
+ }
kfree(target);
}
@@ -748,4 +860,4 @@ static __init int hmat_init(void)
acpi_put_table(tbl);
return 0;
}
-subsys_initcall(hmat_init);
+device_initcall(hmat_init);
diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa/srat.c
similarity index 100%
rename from drivers/acpi/numa.c
rename to drivers/acpi/numa/srat.c
diff --git a/drivers/acpi/osi.c b/drivers/acpi/osi.c
index bec0beb..9f68538 100644
--- a/drivers/acpi/osi.c
+++ b/drivers/acpi/osi.c
@@ -473,9 +473,9 @@ static const struct dmi_system_id acpi_osi_dmi_table[] __initconst = {
*/
/*
- * Without this this EEEpc exports a non working WMI interface, with
- * this it exports a working "good old" eeepc_laptop interface, fixing
- * both brightness control, and rfkill not working.
+ * Without this EEEpc exports a non working WMI interface, with
+ * this it exports a working "good old" eeepc_laptop interface,
+ * fixing both brightness control, and rfkill not working.
*/
{
.callback = dmi_enable_osi_linux,
diff --git a/drivers/acpi/pmic/intel_pmic.c b/drivers/acpi/pmic/intel_pmic.c
index 4520413..a371f27 100644
--- a/drivers/acpi/pmic/intel_pmic.c
+++ b/drivers/acpi/pmic/intel_pmic.c
@@ -252,7 +252,7 @@ int intel_pmic_install_opregion_handler(struct device *dev, acpi_handle handle,
struct regmap *regmap,
struct intel_pmic_opregion_data *d)
{
- acpi_status status;
+ acpi_status status = AE_OK;
struct intel_pmic_opregion *opregion;
int ret;
@@ -270,7 +270,8 @@ int intel_pmic_install_opregion_handler(struct device *dev, acpi_handle handle,
opregion->regmap = regmap;
opregion->lpat_table = acpi_lpat_get_conversion_table(handle);
- status = acpi_install_address_space_handler(handle,
+ if (d->power_table_count)
+ status = acpi_install_address_space_handler(handle,
PMIC_POWER_OPREGION_ID,
intel_pmic_power_handler,
NULL, opregion);
@@ -279,7 +280,8 @@ int intel_pmic_install_opregion_handler(struct device *dev, acpi_handle handle,
goto out_error;
}
- status = acpi_install_address_space_handler(handle,
+ if (d->thermal_table_count)
+ status = acpi_install_address_space_handler(handle,
PMIC_THERMAL_OPREGION_ID,
intel_pmic_thermal_handler,
NULL, opregion);
@@ -301,12 +303,16 @@ int intel_pmic_install_opregion_handler(struct device *dev, acpi_handle handle,
return 0;
out_remove_thermal_handler:
- acpi_remove_address_space_handler(handle, PMIC_THERMAL_OPREGION_ID,
- intel_pmic_thermal_handler);
+ if (d->thermal_table_count)
+ acpi_remove_address_space_handler(handle,
+ PMIC_THERMAL_OPREGION_ID,
+ intel_pmic_thermal_handler);
out_remove_power_handler:
- acpi_remove_address_space_handler(handle, PMIC_POWER_OPREGION_ID,
- intel_pmic_power_handler);
+ if (d->power_table_count)
+ acpi_remove_address_space_handler(handle,
+ PMIC_POWER_OPREGION_ID,
+ intel_pmic_power_handler);
out_error:
acpi_lpat_free_conversion_table(opregion->lpat_table);
diff --git a/drivers/acpi/pmic/intel_pmic_crc.c b/drivers/acpi/pmic/intel_pmic_bytcrc.c
similarity index 97%
rename from drivers/acpi/pmic/intel_pmic_crc.c
rename to drivers/acpi/pmic/intel_pmic_bytcrc.c
index a0f411a..2a692cc 100644
--- a/drivers/acpi/pmic/intel_pmic_crc.c
+++ b/drivers/acpi/pmic/intel_pmic_bytcrc.c
@@ -1,6 +1,6 @@
// SPDX-License-Identifier: GPL-2.0
/*
- * Intel CrystalCove PMIC operation region driver
+ * Intel Bay Trail Crystal Cove PMIC operation region driver
*
* Copyright (C) 2014 Intel Corporation. All rights reserved.
*/
@@ -295,7 +295,7 @@ static int intel_crc_pmic_opregion_probe(struct platform_device *pdev)
static struct platform_driver intel_crc_pmic_opregion_driver = {
.probe = intel_crc_pmic_opregion_probe,
.driver = {
- .name = "crystal_cove_pmic",
+ .name = "byt_crystal_cove_pmic",
},
};
builtin_platform_driver(intel_crc_pmic_opregion_driver);
diff --git a/drivers/acpi/pmic/intel_pmic_chtcrc.c b/drivers/acpi/pmic/intel_pmic_chtcrc.c
new file mode 100644
index 0000000..ebf8d31
--- /dev/null
+++ b/drivers/acpi/pmic/intel_pmic_chtcrc.c
@@ -0,0 +1,44 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Intel Cherry Trail Crystal Cove PMIC operation region driver
+ *
+ * Copyright (C) 2019 Hans de Goede <hdegoede@redhat.com>
+ */
+
+#include <linux/acpi.h>
+#include <linux/init.h>
+#include <linux/mfd/intel_soc_pmic.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+#include "intel_pmic.h"
+
+/*
+ * We have no docs for the CHT Crystal Cove PMIC. The Asus Zenfone-2 kernel
+ * code has 2 Crystal Cove regulator drivers, one calls the PMIC a "Crystal
+ * Cove Plus" PMIC and talks about Cherry Trail, so presuambly that one
+ * could be used to get register info for the regulators if we need to
+ * implement regulator support in the future.
+ *
+ * For now the sole purpose of this driver is to make
+ * intel_soc_pmic_exec_mipi_pmic_seq_element work on devices with a
+ * CHT Crystal Cove PMIC.
+ */
+static struct intel_pmic_opregion_data intel_chtcrc_pmic_opregion_data = {
+ .pmic_i2c_address = 0x6e,
+};
+
+static int intel_chtcrc_pmic_opregion_probe(struct platform_device *pdev)
+{
+ struct intel_soc_pmic *pmic = dev_get_drvdata(pdev->dev.parent);
+ return intel_pmic_install_opregion_handler(&pdev->dev,
+ ACPI_HANDLE(pdev->dev.parent), pmic->regmap,
+ &intel_chtcrc_pmic_opregion_data);
+}
+
+static struct platform_driver intel_chtcrc_pmic_opregion_driver = {
+ .probe = intel_chtcrc_pmic_opregion_probe,
+ .driver = {
+ .name = "cht_crystal_cove_pmic",
+ },
+};
+builtin_platform_driver(intel_chtcrc_pmic_opregion_driver);
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index aad6be5..915650b 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -2174,6 +2174,7 @@ int __init acpi_scan_init(void)
acpi_pci_root_init();
acpi_pci_link_init();
acpi_processor_init();
+ acpi_platform_init();
acpi_lpss_init();
acpi_apd_init();
acpi_cmos_rtc_init();
diff --git a/drivers/acpi/utils.c b/drivers/acpi/utils.c
index e3974a8..804ac0d 100644
--- a/drivers/acpi/utils.c
+++ b/drivers/acpi/utils.c
@@ -455,6 +455,7 @@ EXPORT_SYMBOL(acpi_evaluate_ost);
/**
* acpi_handle_path: Return the object path of handle
+ * @handle: ACPI device handle
*
* Caller must free the returned buffer
*/
@@ -473,6 +474,9 @@ static char *acpi_handle_path(acpi_handle handle)
/**
* acpi_handle_printk: Print message with ACPI prefix and object path
+ * @level: log level
+ * @handle: ACPI device handle
+ * @fmt: format string
*
* This function is called through acpi_handle_<level> macros and prints
* a message with ACPI prefix and object path. This function acquires
@@ -501,6 +505,9 @@ EXPORT_SYMBOL(acpi_handle_printk);
#if defined(CONFIG_DYNAMIC_DEBUG)
/**
* __acpi_handle_debug: pr_debug with ACPI prefix and object path
+ * @descriptor: Dynamic Debug descriptor
+ * @handle: ACPI device handle
+ * @fmt: format string
*
* This function is called through acpi_handle_debug macro and debug
* prints a message with ACPI prefix and object path. This function
@@ -695,6 +702,31 @@ bool acpi_check_dsm(acpi_handle handle, const guid_t *guid, u64 rev, u64 funcs)
EXPORT_SYMBOL(acpi_check_dsm);
/**
+ * acpi_dev_hid_uid_match - Match device by supplied HID and UID
+ * @adev: ACPI device to match.
+ * @hid2: Hardware ID of the device.
+ * @uid2: Unique ID of the device, pass NULL to not check _UID.
+ *
+ * Matches HID and UID in @adev with given @hid2 and @uid2.
+ * Returns true if matches.
+ */
+bool acpi_dev_hid_uid_match(struct acpi_device *adev,
+ const char *hid2, const char *uid2)
+{
+ const char *hid1 = acpi_device_hid(adev);
+ const char *uid1 = acpi_device_uid(adev);
+
+ if (strcmp(hid1, hid2))
+ return false;
+
+ if (!uid2)
+ return true;
+
+ return uid1 && !strcmp(uid1, uid2);
+}
+EXPORT_SYMBOL(acpi_dev_hid_uid_match);
+
+/**
* acpi_dev_found - Detect presence of a given ACPI device in the namespace.
* @hid: Hardware ID of the device.
*
diff --git a/drivers/base/Kconfig b/drivers/base/Kconfig
index 28b92e3..c3b3b5c 100644
--- a/drivers/base/Kconfig
+++ b/drivers/base/Kconfig
@@ -148,6 +148,10 @@
unusable. You should say N here unless you are explicitly looking to
test this functionality.
+config PM_QOS_KUNIT_TEST
+ bool "KUnit Test for PM QoS features"
+ depends on KUNIT
+
config HMEM_REPORTING
bool
default n
diff --git a/drivers/base/power/Makefile b/drivers/base/power/Makefile
index ec5bb19..8fdd007 100644
--- a/drivers/base/power/Makefile
+++ b/drivers/base/power/Makefile
@@ -4,5 +4,6 @@
obj-$(CONFIG_PM_TRACE_RTC) += trace.o
obj-$(CONFIG_PM_GENERIC_DOMAINS) += domain.o domain_governor.o
obj-$(CONFIG_HAVE_CLK) += clock_ops.o
+obj-$(CONFIG_PM_QOS_KUNIT_TEST) += qos-test.o
ccflags-$(CONFIG_DEBUG_DRIVER) := -DDEBUG
diff --git a/drivers/base/power/qos-test.c b/drivers/base/power/qos-test.c
new file mode 100644
index 0000000..3115db0
--- /dev/null
+++ b/drivers/base/power/qos-test.c
@@ -0,0 +1,117 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright 2019 NXP
+ */
+#include <kunit/test.h>
+#include <linux/pm_qos.h>
+
+/* Basic test for aggregating two "min" requests */
+static void freq_qos_test_min(struct kunit *test)
+{
+ struct freq_constraints qos;
+ struct freq_qos_request req1, req2;
+ int ret;
+
+ freq_constraints_init(&qos);
+ memset(&req1, 0, sizeof(req1));
+ memset(&req2, 0, sizeof(req2));
+
+ ret = freq_qos_add_request(&qos, &req1, FREQ_QOS_MIN, 1000);
+ KUNIT_EXPECT_EQ(test, ret, 1);
+ ret = freq_qos_add_request(&qos, &req2, FREQ_QOS_MIN, 2000);
+ KUNIT_EXPECT_EQ(test, ret, 1);
+
+ KUNIT_EXPECT_EQ(test, freq_qos_read_value(&qos, FREQ_QOS_MIN), 2000);
+
+ ret = freq_qos_remove_request(&req2);
+ KUNIT_EXPECT_EQ(test, ret, 1);
+ KUNIT_EXPECT_EQ(test, freq_qos_read_value(&qos, FREQ_QOS_MIN), 1000);
+
+ ret = freq_qos_remove_request(&req1);
+ KUNIT_EXPECT_EQ(test, ret, 1);
+ KUNIT_EXPECT_EQ(test, freq_qos_read_value(&qos, FREQ_QOS_MIN),
+ FREQ_QOS_MIN_DEFAULT_VALUE);
+}
+
+/* Test that requests for MAX_DEFAULT_VALUE have no effect */
+static void freq_qos_test_maxdef(struct kunit *test)
+{
+ struct freq_constraints qos;
+ struct freq_qos_request req1, req2;
+ int ret;
+
+ freq_constraints_init(&qos);
+ memset(&req1, 0, sizeof(req1));
+ memset(&req2, 0, sizeof(req2));
+ KUNIT_EXPECT_EQ(test, freq_qos_read_value(&qos, FREQ_QOS_MAX),
+ FREQ_QOS_MAX_DEFAULT_VALUE);
+
+ ret = freq_qos_add_request(&qos, &req1, FREQ_QOS_MAX,
+ FREQ_QOS_MAX_DEFAULT_VALUE);
+ KUNIT_EXPECT_EQ(test, ret, 0);
+ ret = freq_qos_add_request(&qos, &req2, FREQ_QOS_MAX,
+ FREQ_QOS_MAX_DEFAULT_VALUE);
+ KUNIT_EXPECT_EQ(test, ret, 0);
+
+ /* Add max 1000 */
+ ret = freq_qos_update_request(&req1, 1000);
+ KUNIT_EXPECT_EQ(test, ret, 1);
+ KUNIT_EXPECT_EQ(test, freq_qos_read_value(&qos, FREQ_QOS_MAX), 1000);
+
+ /* Add max 2000, no impact */
+ ret = freq_qos_update_request(&req2, 2000);
+ KUNIT_EXPECT_EQ(test, ret, 0);
+ KUNIT_EXPECT_EQ(test, freq_qos_read_value(&qos, FREQ_QOS_MAX), 1000);
+
+ /* Remove max 1000, new max 2000 */
+ ret = freq_qos_remove_request(&req1);
+ KUNIT_EXPECT_EQ(test, ret, 1);
+ KUNIT_EXPECT_EQ(test, freq_qos_read_value(&qos, FREQ_QOS_MAX), 2000);
+}
+
+/*
+ * Test that a freq_qos_request can be added again after removal
+ *
+ * This issue was solved by commit 05ff1ba412fd ("PM: QoS: Invalidate frequency
+ * QoS requests after removal")
+ */
+static void freq_qos_test_readd(struct kunit *test)
+{
+ struct freq_constraints qos;
+ struct freq_qos_request req;
+ int ret;
+
+ freq_constraints_init(&qos);
+ memset(&req, 0, sizeof(req));
+ KUNIT_EXPECT_EQ(test, freq_qos_read_value(&qos, FREQ_QOS_MIN),
+ FREQ_QOS_MIN_DEFAULT_VALUE);
+
+ /* Add */
+ ret = freq_qos_add_request(&qos, &req, FREQ_QOS_MIN, 1000);
+ KUNIT_EXPECT_EQ(test, ret, 1);
+ KUNIT_EXPECT_EQ(test, freq_qos_read_value(&qos, FREQ_QOS_MIN), 1000);
+
+ /* Remove */
+ ret = freq_qos_remove_request(&req);
+ KUNIT_EXPECT_EQ(test, ret, 1);
+ KUNIT_EXPECT_EQ(test, freq_qos_read_value(&qos, FREQ_QOS_MIN),
+ FREQ_QOS_MIN_DEFAULT_VALUE);
+
+ /* Add again */
+ ret = freq_qos_add_request(&qos, &req, FREQ_QOS_MIN, 2000);
+ KUNIT_EXPECT_EQ(test, ret, 1);
+ KUNIT_EXPECT_EQ(test, freq_qos_read_value(&qos, FREQ_QOS_MIN), 2000);
+}
+
+static struct kunit_case pm_qos_test_cases[] = {
+ KUNIT_CASE(freq_qos_test_min),
+ KUNIT_CASE(freq_qos_test_maxdef),
+ KUNIT_CASE(freq_qos_test_readd),
+ {},
+};
+
+static struct kunit_suite pm_qos_test_module = {
+ .name = "qos-kunit-test",
+ .test_cases = pm_qos_test_cases,
+};
+kunit_test_suite(pm_qos_test_module);
diff --git a/drivers/base/power/qos.c b/drivers/base/power/qos.c
index 350dcaf..8e93167 100644
--- a/drivers/base/power/qos.c
+++ b/drivers/base/power/qos.c
@@ -115,10 +115,20 @@ s32 dev_pm_qos_read_value(struct device *dev, enum dev_pm_qos_req_type type)
spin_lock_irqsave(&dev->power.lock, flags);
- if (type == DEV_PM_QOS_RESUME_LATENCY) {
+ switch (type) {
+ case DEV_PM_QOS_RESUME_LATENCY:
ret = IS_ERR_OR_NULL(qos) ? PM_QOS_RESUME_LATENCY_NO_CONSTRAINT
: pm_qos_read_value(&qos->resume_latency);
- } else {
+ break;
+ case DEV_PM_QOS_MIN_FREQUENCY:
+ ret = IS_ERR_OR_NULL(qos) ? PM_QOS_MIN_FREQUENCY_DEFAULT_VALUE
+ : freq_qos_read_value(&qos->freq, FREQ_QOS_MIN);
+ break;
+ case DEV_PM_QOS_MAX_FREQUENCY:
+ ret = IS_ERR_OR_NULL(qos) ? PM_QOS_MAX_FREQUENCY_DEFAULT_VALUE
+ : freq_qos_read_value(&qos->freq, FREQ_QOS_MAX);
+ break;
+ default:
WARN_ON(1);
ret = 0;
}
@@ -159,6 +169,10 @@ static int apply_constraint(struct dev_pm_qos_request *req,
req->dev->power.set_latency_tolerance(req->dev, value);
}
break;
+ case DEV_PM_QOS_MIN_FREQUENCY:
+ case DEV_PM_QOS_MAX_FREQUENCY:
+ ret = freq_qos_apply(&req->data.freq, action, value);
+ break;
case DEV_PM_QOS_FLAGS:
ret = pm_qos_update_flags(&qos->flags, &req->data.flr,
action, value);
@@ -209,6 +223,8 @@ static int dev_pm_qos_constraints_allocate(struct device *dev)
c->no_constraint_value = PM_QOS_LATENCY_TOLERANCE_NO_CONSTRAINT;
c->type = PM_QOS_MIN;
+ freq_constraints_init(&qos->freq);
+
INIT_LIST_HEAD(&qos->flags.list);
spin_lock_irq(&dev->power.lock);
@@ -269,6 +285,20 @@ void dev_pm_qos_constraints_destroy(struct device *dev)
memset(req, 0, sizeof(*req));
}
+ c = &qos->freq.min_freq;
+ plist_for_each_entry_safe(req, tmp, &c->list, data.freq.pnode) {
+ apply_constraint(req, PM_QOS_REMOVE_REQ,
+ PM_QOS_MIN_FREQUENCY_DEFAULT_VALUE);
+ memset(req, 0, sizeof(*req));
+ }
+
+ c = &qos->freq.max_freq;
+ plist_for_each_entry_safe(req, tmp, &c->list, data.freq.pnode) {
+ apply_constraint(req, PM_QOS_REMOVE_REQ,
+ PM_QOS_MAX_FREQUENCY_DEFAULT_VALUE);
+ memset(req, 0, sizeof(*req));
+ }
+
f = &qos->flags;
list_for_each_entry_safe(req, tmp, &f->list, data.flr.node) {
apply_constraint(req, PM_QOS_REMOVE_REQ, PM_QOS_DEFAULT_VALUE);
@@ -314,11 +344,22 @@ static int __dev_pm_qos_add_request(struct device *dev,
ret = dev_pm_qos_constraints_allocate(dev);
trace_dev_pm_qos_add_request(dev_name(dev), type, value);
- if (!ret) {
- req->dev = dev;
- req->type = type;
+ if (ret)
+ return ret;
+
+ req->dev = dev;
+ req->type = type;
+ if (req->type == DEV_PM_QOS_MIN_FREQUENCY)
+ ret = freq_qos_add_request(&dev->power.qos->freq,
+ &req->data.freq,
+ FREQ_QOS_MIN, value);
+ else if (req->type == DEV_PM_QOS_MAX_FREQUENCY)
+ ret = freq_qos_add_request(&dev->power.qos->freq,
+ &req->data.freq,
+ FREQ_QOS_MAX, value);
+ else
ret = apply_constraint(req, PM_QOS_ADD_REQ, value);
- }
+
return ret;
}
@@ -382,6 +423,10 @@ static int __dev_pm_qos_update_request(struct dev_pm_qos_request *req,
case DEV_PM_QOS_LATENCY_TOLERANCE:
curr_value = req->data.pnode.prio;
break;
+ case DEV_PM_QOS_MIN_FREQUENCY:
+ case DEV_PM_QOS_MAX_FREQUENCY:
+ curr_value = req->data.freq.pnode.prio;
+ break;
case DEV_PM_QOS_FLAGS:
curr_value = req->data.flr.flags;
break;
@@ -507,6 +552,14 @@ int dev_pm_qos_add_notifier(struct device *dev, struct notifier_block *notifier,
ret = blocking_notifier_chain_register(dev->power.qos->resume_latency.notifiers,
notifier);
break;
+ case DEV_PM_QOS_MIN_FREQUENCY:
+ ret = freq_qos_add_notifier(&dev->power.qos->freq,
+ FREQ_QOS_MIN, notifier);
+ break;
+ case DEV_PM_QOS_MAX_FREQUENCY:
+ ret = freq_qos_add_notifier(&dev->power.qos->freq,
+ FREQ_QOS_MAX, notifier);
+ break;
default:
WARN_ON(1);
ret = -EINVAL;
@@ -546,6 +599,14 @@ int dev_pm_qos_remove_notifier(struct device *dev,
ret = blocking_notifier_chain_unregister(dev->power.qos->resume_latency.notifiers,
notifier);
break;
+ case DEV_PM_QOS_MIN_FREQUENCY:
+ ret = freq_qos_remove_notifier(&dev->power.qos->freq,
+ FREQ_QOS_MIN, notifier);
+ break;
+ case DEV_PM_QOS_MAX_FREQUENCY:
+ ret = freq_qos_remove_notifier(&dev->power.qos->freq,
+ FREQ_QOS_MAX, notifier);
+ break;
default:
WARN_ON(1);
ret = -EINVAL;
diff --git a/drivers/cpufreq/Kconfig.powerpc b/drivers/cpufreq/Kconfig.powerpc
index 35b4f70..58151ca 100644
--- a/drivers/cpufreq/Kconfig.powerpc
+++ b/drivers/cpufreq/Kconfig.powerpc
@@ -48,9 +48,9 @@
PWRficient processors.
config POWERNV_CPUFREQ
- tristate "CPU frequency scaling for IBM POWERNV platform"
- depends on PPC_POWERNV
- default y
- help
+ tristate "CPU frequency scaling for IBM POWERNV platform"
+ depends on PPC_POWERNV
+ default y
+ help
This adds support for CPU frequency switching on IBM POWERNV
platform
diff --git a/drivers/cpufreq/Kconfig.x86 b/drivers/cpufreq/Kconfig.x86
index dfa6457..a652838 100644
--- a/drivers/cpufreq/Kconfig.x86
+++ b/drivers/cpufreq/Kconfig.x86
@@ -4,17 +4,17 @@
#
config X86_INTEL_PSTATE
- bool "Intel P state control"
- depends on X86
- select ACPI_PROCESSOR if ACPI
- select ACPI_CPPC_LIB if X86_64 && ACPI && SCHED_MC_PRIO
- help
- This driver provides a P state for Intel core processors.
+ bool "Intel P state control"
+ depends on X86
+ select ACPI_PROCESSOR if ACPI
+ select ACPI_CPPC_LIB if X86_64 && ACPI && SCHED_MC_PRIO
+ help
+ This driver provides a P state for Intel core processors.
The driver implements an internal governor and will become
- the scaling driver and governor for Sandy bridge processors.
+ the scaling driver and governor for Sandy bridge processors.
When this driver is enabled it will become the preferred
- scaling driver for Sandy bridge processors.
+ scaling driver for Sandy bridge processors.
If in doubt, say N.
diff --git a/drivers/cpuidle/Kconfig b/drivers/cpuidle/Kconfig
index 88727b7..c0aeedd 100644
--- a/drivers/cpuidle/Kconfig
+++ b/drivers/cpuidle/Kconfig
@@ -16,7 +16,7 @@
if CPU_IDLE
config CPU_IDLE_MULTIPLE_DRIVERS
- bool
+ bool
config CPU_IDLE_GOV_LADDER
bool "Ladder governor (for periodic timer tick)"
@@ -63,13 +63,13 @@
endmenu
config HALTPOLL_CPUIDLE
- tristate "Halt poll cpuidle driver"
- depends on X86 && KVM_GUEST
- default y
- help
- This option enables halt poll cpuidle driver, which allows to poll
- before halting in the guest (more efficient than polling in the
- host via halt_poll_ns for some scenarios).
+ tristate "Halt poll cpuidle driver"
+ depends on X86 && KVM_GUEST
+ default y
+ help
+ This option enables halt poll cpuidle driver, which allows to poll
+ before halting in the guest (more efficient than polling in the
+ host via halt_poll_ns for some scenarios).
endif
diff --git a/drivers/cpuidle/Kconfig.arm b/drivers/cpuidle/Kconfig.arm
index d853047..a224d33 100644
--- a/drivers/cpuidle/Kconfig.arm
+++ b/drivers/cpuidle/Kconfig.arm
@@ -3,15 +3,15 @@
# ARM CPU Idle drivers
#
config ARM_CPUIDLE
- bool "Generic ARM/ARM64 CPU idle Driver"
- select DT_IDLE_STATES
+ bool "Generic ARM/ARM64 CPU idle Driver"
+ select DT_IDLE_STATES
select CPU_IDLE_MULTIPLE_DRIVERS
- help
- Select this to enable generic cpuidle driver for ARM.
- It provides a generic idle driver whose idle states are configured
- at run-time through DT nodes. The CPUidle suspend backend is
- initialized by calling the CPU operations init idle hook
- provided by architecture code.
+ help
+ Select this to enable generic cpuidle driver for ARM.
+ It provides a generic idle driver whose idle states are configured
+ at run-time through DT nodes. The CPUidle suspend backend is
+ initialized by calling the CPU operations init idle hook
+ provided by architecture code.
config ARM_PSCI_CPUIDLE
bool "PSCI CPU idle Driver"
@@ -65,21 +65,21 @@
bool "Cpu Idle Driver for the ST-E u8500 processors"
depends on ARCH_U8500 && !ARM64
help
- Select this to enable cpuidle for ST-E u8500 processors
+ Select this to enable cpuidle for ST-E u8500 processors.
config ARM_AT91_CPUIDLE
bool "Cpu Idle Driver for the AT91 processors"
default y
depends on ARCH_AT91 && !ARM64
help
- Select this to enable cpuidle for AT91 processors
+ Select this to enable cpuidle for AT91 processors.
config ARM_EXYNOS_CPUIDLE
bool "Cpu Idle Driver for the Exynos processors"
depends on ARCH_EXYNOS && !ARM64
select ARCH_NEEDS_CPU_IDLE_COUPLED if SMP
help
- Select this to enable cpuidle for Exynos processors
+ Select this to enable cpuidle for Exynos processors.
config ARM_MVEBU_V7_CPUIDLE
bool "CPU Idle Driver for mvebu v7 family processors"
diff --git a/drivers/cpuidle/cpuidle.c b/drivers/cpuidle/cpuidle.c
index 569dbac..0005be5 100644
--- a/drivers/cpuidle/cpuidle.c
+++ b/drivers/cpuidle/cpuidle.c
@@ -572,7 +572,7 @@ static int __cpuidle_register_device(struct cpuidle_device *dev)
return -EINVAL;
for (i = 0; i < drv->state_count; i++)
- if (drv->states[i].disabled)
+ if (drv->states[i].flags & CPUIDLE_FLAG_UNUSABLE)
dev->states_usage[i].disable |= CPUIDLE_STATE_DISABLED_BY_DRIVER;
per_cpu(cpuidle_devices, dev->cpu) = dev;
diff --git a/drivers/cpuidle/poll_state.c b/drivers/cpuidle/poll_state.c
index 9f1ace9..f7e8361 100644
--- a/drivers/cpuidle/poll_state.c
+++ b/drivers/cpuidle/poll_state.c
@@ -53,7 +53,6 @@ void cpuidle_poll_state_init(struct cpuidle_driver *drv)
state->target_residency_ns = 0;
state->power_usage = -1;
state->enter = poll_idle;
- state->disabled = false;
state->flags = CPUIDLE_FLAG_POLLING;
}
EXPORT_SYMBOL_GPL(cpuidle_poll_state_init);
diff --git a/drivers/dax/Kconfig b/drivers/dax/Kconfig
index f33c73e..3b6c06f 100644
--- a/drivers/dax/Kconfig
+++ b/drivers/dax/Kconfig
@@ -32,19 +32,36 @@
Say M if unsure
+config DEV_DAX_HMEM
+ tristate "HMEM DAX: direct access to 'specific purpose' memory"
+ depends on EFI_SOFT_RESERVE
+ default DEV_DAX
+ help
+ EFI 2.8 platforms, and others, may advertise 'specific purpose'
+ memory. For example, a high bandwidth memory pool. The
+ indication from platform firmware is meant to reserve the
+ memory from typical usage by default. This driver creates
+ device-dax instances for these memory ranges, and that also
+ enables the possibility to assign them to the DEV_DAX_KMEM
+ driver to override the reservation and add them to kernel
+ "System RAM" pool.
+
+ Say M if unsure.
+
config DEV_DAX_KMEM
tristate "KMEM DAX: volatile-use of persistent memory"
default DEV_DAX
depends on DEV_DAX
depends on MEMORY_HOTPLUG # for add_memory() and friends
help
- Support access to persistent memory as if it were RAM. This
- allows easier use of persistent memory by unmodified
- applications.
+ Support access to persistent, or other performance
+ differentiated memory as if it were System RAM. This allows
+ easier use of persistent memory by unmodified applications, or
+ adds core kernel memory services to heterogeneous memory types
+ (HMEM) marked "reserved" by platform firmware.
To use this feature, a DAX device must be unbound from the
- device_dax driver (PMEM DAX) and bound to this kmem driver
- on each boot.
+ device_dax driver and bound to this kmem driver on each boot.
Say N if unsure.
diff --git a/drivers/dax/Makefile b/drivers/dax/Makefile
index 81f7d54..80065b3 100644
--- a/drivers/dax/Makefile
+++ b/drivers/dax/Makefile
@@ -2,9 +2,11 @@
obj-$(CONFIG_DAX) += dax.o
obj-$(CONFIG_DEV_DAX) += device_dax.o
obj-$(CONFIG_DEV_DAX_KMEM) += kmem.o
+obj-$(CONFIG_DEV_DAX_HMEM) += dax_hmem.o
dax-y := super.o
dax-y += bus.o
device_dax-y := device.o
+dax_hmem-y := hmem.o
obj-y += pmem/
diff --git a/drivers/dax/bus.c b/drivers/dax/bus.c
index 8fafbeab..eccdda1 100644
--- a/drivers/dax/bus.c
+++ b/drivers/dax/bus.c
@@ -227,7 +227,7 @@ static void dax_region_unregister(void *region)
struct dax_region *alloc_dax_region(struct device *parent, int region_id,
struct resource *res, int target_node, unsigned int align,
- unsigned long pfn_flags)
+ unsigned long long pfn_flags)
{
struct dax_region *dax_region;
diff --git a/drivers/dax/bus.h b/drivers/dax/bus.h
index 8619e32..9e4eba6 100644
--- a/drivers/dax/bus.h
+++ b/drivers/dax/bus.h
@@ -11,7 +11,7 @@ struct dax_region;
void dax_region_put(struct dax_region *dax_region);
struct dax_region *alloc_dax_region(struct device *parent, int region_id,
struct resource *res, int target_node, unsigned int align,
- unsigned long flags);
+ unsigned long long flags);
enum dev_dax_subsys {
DEV_DAX_BUS,
diff --git a/drivers/dax/dax-private.h b/drivers/dax/dax-private.h
index 6ccca3b..3107ce8 100644
--- a/drivers/dax/dax-private.h
+++ b/drivers/dax/dax-private.h
@@ -32,7 +32,7 @@ struct dax_region {
struct device *dev;
unsigned int align;
struct resource res;
- unsigned long pfn_flags;
+ unsigned long long pfn_flags;
};
/**
diff --git a/drivers/dax/hmem.c b/drivers/dax/hmem.c
new file mode 100644
index 0000000..fe7214d
--- /dev/null
+++ b/drivers/dax/hmem.c
@@ -0,0 +1,56 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/platform_device.h>
+#include <linux/memregion.h>
+#include <linux/module.h>
+#include <linux/pfn_t.h>
+#include "bus.h"
+
+static int dax_hmem_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct dev_pagemap pgmap = { };
+ struct dax_region *dax_region;
+ struct memregion_info *mri;
+ struct dev_dax *dev_dax;
+ struct resource *res;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res)
+ return -ENOMEM;
+
+ mri = dev->platform_data;
+ memcpy(&pgmap.res, res, sizeof(*res));
+
+ dax_region = alloc_dax_region(dev, pdev->id, res, mri->target_node,
+ PMD_SIZE, PFN_DEV|PFN_MAP);
+ if (!dax_region)
+ return -ENOMEM;
+
+ dev_dax = devm_create_dev_dax(dax_region, 0, &pgmap);
+ if (IS_ERR(dev_dax))
+ return PTR_ERR(dev_dax);
+
+ /* child dev_dax instances now own the lifetime of the dax_region */
+ dax_region_put(dax_region);
+ return 0;
+}
+
+static int dax_hmem_remove(struct platform_device *pdev)
+{
+ /* devm handles teardown */
+ return 0;
+}
+
+static struct platform_driver dax_hmem_driver = {
+ .probe = dax_hmem_probe,
+ .remove = dax_hmem_remove,
+ .driver = {
+ .name = "hmem",
+ },
+};
+
+module_platform_driver(dax_hmem_driver);
+
+MODULE_ALIAS("platform:hmem*");
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Intel Corporation");
diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c
index f840e61..425149e 100644
--- a/drivers/devfreq/devfreq.c
+++ b/drivers/devfreq/devfreq.c
@@ -921,7 +921,9 @@ int devfreq_suspend_device(struct devfreq *devfreq)
}
if (devfreq->suspend_freq) {
+ mutex_lock(&devfreq->lock);
ret = devfreq_set_target(devfreq, devfreq->suspend_freq, 0);
+ mutex_unlock(&devfreq->lock);
if (ret)
return ret;
}
@@ -949,7 +951,9 @@ int devfreq_resume_device(struct devfreq *devfreq)
return 0;
if (devfreq->resume_freq) {
+ mutex_lock(&devfreq->lock);
ret = devfreq_set_target(devfreq, devfreq->resume_freq, 0);
+ mutex_unlock(&devfreq->lock);
if (ret)
return ret;
}
diff --git a/drivers/firmware/efi/Kconfig b/drivers/firmware/efi/Kconfig
index b248870..bcc378c 100644
--- a/drivers/firmware/efi/Kconfig
+++ b/drivers/firmware/efi/Kconfig
@@ -75,6 +75,27 @@
Ranges can be set up to this value using comma-separated list.
The default value is 8.
+config EFI_SOFT_RESERVE
+ bool "Reserve EFI Specific Purpose Memory"
+ depends on EFI && EFI_STUB && ACPI_HMAT
+ default ACPI_HMAT
+ help
+ On systems that have mixed performance classes of memory EFI
+ may indicate specific purpose memory with an attribute (See
+ EFI_MEMORY_SP in UEFI 2.8). A memory range tagged with this
+ attribute may have unique performance characteristics compared
+ to the system's general purpose "System RAM" pool. On the
+ expectation that such memory has application specific usage,
+ and its base EFI memory type is "conventional" answer Y to
+ arrange for the kernel to reserve it as a "Soft Reserved"
+ resource, and set aside for direct-access (device-dax) by
+ default. The memory range can later be optionally assigned to
+ the page allocator by system administrator policy via the
+ device-dax kmem facility. Say N to have the kernel treat this
+ memory as "System RAM" by default.
+
+ If unsure, say Y.
+
config EFI_PARAMS_FROM_FDT
bool
help
diff --git a/drivers/firmware/efi/Makefile b/drivers/firmware/efi/Makefile
index 4ac2de4d..554d795 100644
--- a/drivers/firmware/efi/Makefile
+++ b/drivers/firmware/efi/Makefile
@@ -20,13 +20,16 @@
obj-$(CONFIG_EFI_RUNTIME_MAP) += runtime-map.o
obj-$(CONFIG_EFI_RUNTIME_WRAPPERS) += runtime-wrappers.o
obj-$(CONFIG_EFI_STUB) += libstub/
-obj-$(CONFIG_EFI_FAKE_MEMMAP) += fake_mem.o
+obj-$(CONFIG_EFI_FAKE_MEMMAP) += fake_map.o
obj-$(CONFIG_EFI_BOOTLOADER_CONTROL) += efibc.o
obj-$(CONFIG_EFI_TEST) += test/
obj-$(CONFIG_EFI_DEV_PATH_PARSER) += dev-path-parser.o
obj-$(CONFIG_APPLE_PROPERTIES) += apple-properties.o
obj-$(CONFIG_EFI_RCI2_TABLE) += rci2-table.o
+fake_map-y += fake_mem.o
+fake_map-$(CONFIG_X86) += x86_fake_mem.o
+
arm-obj-$(CONFIG_EFI) := arm-init.o arm-runtime.o
obj-$(CONFIG_ARM) += $(arm-obj-y)
obj-$(CONFIG_ARM64) += $(arm-obj-y)
diff --git a/drivers/firmware/efi/arm-init.c b/drivers/firmware/efi/arm-init.c
index 311cd34..904fa09 100644
--- a/drivers/firmware/efi/arm-init.c
+++ b/drivers/firmware/efi/arm-init.c
@@ -164,6 +164,15 @@ static __init int is_usable_memory(efi_memory_desc_t *md)
case EFI_CONVENTIONAL_MEMORY:
case EFI_PERSISTENT_MEMORY:
/*
+ * Special purpose memory is 'soft reserved', which means it
+ * is set aside initially, but can be hotplugged back in or
+ * be assigned to the dax driver after boot.
+ */
+ if (efi_soft_reserve_enabled() &&
+ (md->attribute & EFI_MEMORY_SP))
+ return false;
+
+ /*
* According to the spec, these regions are no longer reserved
* after calling ExitBootServices(). However, we can only use
* them as System RAM if they can be mapped writeback cacheable.
diff --git a/drivers/firmware/efi/arm-runtime.c b/drivers/firmware/efi/arm-runtime.c
index e2ac5fa..899b803 100644
--- a/drivers/firmware/efi/arm-runtime.c
+++ b/drivers/firmware/efi/arm-runtime.c
@@ -121,6 +121,30 @@ static int __init arm_enable_runtime_services(void)
return 0;
}
+ if (efi_soft_reserve_enabled()) {
+ efi_memory_desc_t *md;
+
+ for_each_efi_memory_desc(md) {
+ int md_size = md->num_pages << EFI_PAGE_SHIFT;
+ struct resource *res;
+
+ if (!(md->attribute & EFI_MEMORY_SP))
+ continue;
+
+ res = kzalloc(sizeof(*res), GFP_KERNEL);
+ if (WARN_ON(!res))
+ break;
+
+ res->start = md->phys_addr;
+ res->end = md->phys_addr + md_size - 1;
+ res->name = "Soft Reserved";
+ res->flags = IORESOURCE_MEM;
+ res->desc = IORES_DESC_SOFT_RESERVED;
+
+ insert_resource(&iomem_resource, res);
+ }
+ }
+
if (efi_runtime_disabled()) {
pr_info("EFI runtime services will be disabled.\n");
return 0;
diff --git a/drivers/firmware/efi/efi.c b/drivers/firmware/efi/efi.c
index e98bbf8..d101f07 100644
--- a/drivers/firmware/efi/efi.c
+++ b/drivers/firmware/efi/efi.c
@@ -81,6 +81,11 @@ bool efi_runtime_disabled(void)
return disable_runtime;
}
+bool __pure __efi_soft_reserve_enabled(void)
+{
+ return !efi_enabled(EFI_MEM_NO_SOFT_RESERVE);
+}
+
static int __init parse_efi_cmdline(char *str)
{
if (!str) {
@@ -94,6 +99,9 @@ static int __init parse_efi_cmdline(char *str)
if (parse_option_str(str, "noruntime"))
disable_runtime = true;
+ if (parse_option_str(str, "nosoftreserve"))
+ set_bit(EFI_MEM_NO_SOFT_RESERVE, &efi.flags);
+
return 0;
}
early_param("efi", parse_efi_cmdline);
@@ -296,7 +304,7 @@ static __init int efivar_ssdt_load(void)
goto free_data;
}
- ret = acpi_load_table(data);
+ ret = acpi_load_table(data, NULL);
if (ret) {
pr_err("failed to load table: %d\n", ret);
goto free_data;
@@ -842,15 +850,16 @@ char * __init efi_md_typeattr_format(char *buf, size_t size,
if (attr & ~(EFI_MEMORY_UC | EFI_MEMORY_WC | EFI_MEMORY_WT |
EFI_MEMORY_WB | EFI_MEMORY_UCE | EFI_MEMORY_RO |
EFI_MEMORY_WP | EFI_MEMORY_RP | EFI_MEMORY_XP |
- EFI_MEMORY_NV |
+ EFI_MEMORY_NV | EFI_MEMORY_SP |
EFI_MEMORY_RUNTIME | EFI_MEMORY_MORE_RELIABLE))
snprintf(pos, size, "|attr=0x%016llx]",
(unsigned long long)attr);
else
snprintf(pos, size,
- "|%3s|%2s|%2s|%2s|%2s|%2s|%2s|%3s|%2s|%2s|%2s|%2s]",
+ "|%3s|%2s|%2s|%2s|%2s|%2s|%2s|%2s|%3s|%2s|%2s|%2s|%2s]",
attr & EFI_MEMORY_RUNTIME ? "RUN" : "",
attr & EFI_MEMORY_MORE_RELIABLE ? "MR" : "",
+ attr & EFI_MEMORY_SP ? "SP" : "",
attr & EFI_MEMORY_NV ? "NV" : "",
attr & EFI_MEMORY_XP ? "XP" : "",
attr & EFI_MEMORY_RP ? "RP" : "",
diff --git a/drivers/firmware/efi/esrt.c b/drivers/firmware/efi/esrt.c
index d6dd5f5..2762e06 100644
--- a/drivers/firmware/efi/esrt.c
+++ b/drivers/firmware/efi/esrt.c
@@ -246,6 +246,9 @@ void __init efi_esrt_init(void)
int rc;
phys_addr_t end;
+ if (!efi_enabled(EFI_MEMMAP))
+ return;
+
pr_debug("esrt-init: loading.\n");
if (!esrt_table_exists())
return;
diff --git a/drivers/firmware/efi/fake_mem.c b/drivers/firmware/efi/fake_mem.c
index 9501edc..bb9fc70 100644
--- a/drivers/firmware/efi/fake_mem.c
+++ b/drivers/firmware/efi/fake_mem.c
@@ -17,12 +17,10 @@
#include <linux/memblock.h>
#include <linux/types.h>
#include <linux/sort.h>
-#include <asm/efi.h>
+#include "fake_mem.h"
-#define EFI_MAX_FAKEMEM CONFIG_EFI_MAX_FAKE_MEM
-
-static struct efi_mem_range fake_mems[EFI_MAX_FAKEMEM];
-static int nr_fake_mem;
+struct efi_mem_range efi_fake_mems[EFI_MAX_FAKEMEM];
+int nr_fake_mem;
static int __init cmp_fake_mem(const void *x1, const void *x2)
{
@@ -44,13 +42,13 @@ void __init efi_fake_memmap(void)
void *new_memmap;
int i;
- if (!nr_fake_mem)
+ if (!efi_enabled(EFI_MEMMAP) || !nr_fake_mem)
return;
/* count up the number of EFI memory descriptor */
for (i = 0; i < nr_fake_mem; i++) {
for_each_efi_memory_desc(md) {
- struct range *r = &fake_mems[i].range;
+ struct range *r = &efi_fake_mems[i].range;
new_nr_map += efi_memmap_split_count(md, r);
}
@@ -70,7 +68,7 @@ void __init efi_fake_memmap(void)
}
for (i = 0; i < nr_fake_mem; i++)
- efi_memmap_insert(&efi.memmap, new_memmap, &fake_mems[i]);
+ efi_memmap_insert(&efi.memmap, new_memmap, &efi_fake_mems[i]);
/* swap into new EFI memmap */
early_memunmap(new_memmap, efi.memmap.desc_size * new_nr_map);
@@ -104,22 +102,22 @@ static int __init setup_fake_mem(char *p)
if (nr_fake_mem >= EFI_MAX_FAKEMEM)
break;
- fake_mems[nr_fake_mem].range.start = start;
- fake_mems[nr_fake_mem].range.end = start + mem_size - 1;
- fake_mems[nr_fake_mem].attribute = attribute;
+ efi_fake_mems[nr_fake_mem].range.start = start;
+ efi_fake_mems[nr_fake_mem].range.end = start + mem_size - 1;
+ efi_fake_mems[nr_fake_mem].attribute = attribute;
nr_fake_mem++;
if (*p == ',')
p++;
}
- sort(fake_mems, nr_fake_mem, sizeof(struct efi_mem_range),
+ sort(efi_fake_mems, nr_fake_mem, sizeof(struct efi_mem_range),
cmp_fake_mem, NULL);
for (i = 0; i < nr_fake_mem; i++)
pr_info("efi_fake_mem: add attr=0x%016llx to [mem 0x%016llx-0x%016llx]",
- fake_mems[i].attribute, fake_mems[i].range.start,
- fake_mems[i].range.end);
+ efi_fake_mems[i].attribute, efi_fake_mems[i].range.start,
+ efi_fake_mems[i].range.end);
return *p == '\0' ? 0 : -EINVAL;
}
diff --git a/drivers/firmware/efi/fake_mem.h b/drivers/firmware/efi/fake_mem.h
new file mode 100644
index 0000000..d52791a
--- /dev/null
+++ b/drivers/firmware/efi/fake_mem.h
@@ -0,0 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __EFI_FAKE_MEM_H__
+#define __EFI_FAKE_MEM_H__
+#include <asm/efi.h>
+
+#define EFI_MAX_FAKEMEM CONFIG_EFI_MAX_FAKE_MEM
+
+extern struct efi_mem_range efi_fake_mems[EFI_MAX_FAKEMEM];
+extern int nr_fake_mem;
+#endif /* __EFI_FAKE_MEM_H__ */
diff --git a/drivers/firmware/efi/libstub/arm32-stub.c b/drivers/firmware/efi/libstub/arm32-stub.c
index 41213bf..4566640 100644
--- a/drivers/firmware/efi/libstub/arm32-stub.c
+++ b/drivers/firmware/efi/libstub/arm32-stub.c
@@ -146,6 +146,11 @@ static efi_status_t reserve_kernel_base(efi_system_table_t *sys_table_arg,
continue;
case EFI_CONVENTIONAL_MEMORY:
+ /* Skip soft reserved conventional memory */
+ if (efi_soft_reserve_enabled() &&
+ (desc->attribute & EFI_MEMORY_SP))
+ continue;
+
/*
* Reserve the intersection between this entry and the
* region.
diff --git a/drivers/firmware/efi/libstub/efi-stub-helper.c b/drivers/firmware/efi/libstub/efi-stub-helper.c
index 35dbc27..e025799 100644
--- a/drivers/firmware/efi/libstub/efi-stub-helper.c
+++ b/drivers/firmware/efi/libstub/efi-stub-helper.c
@@ -32,6 +32,7 @@ static unsigned long __chunk_size = EFI_READ_CHUNK_SIZE;
static int __section(.data) __nokaslr;
static int __section(.data) __quiet;
static int __section(.data) __novamap;
+static bool __section(.data) efi_nosoftreserve;
int __pure nokaslr(void)
{
@@ -45,6 +46,10 @@ int __pure novamap(void)
{
return __novamap;
}
+bool __pure __efi_soft_reserve_enabled(void)
+{
+ return !efi_nosoftreserve;
+}
#define EFI_MMAP_NR_SLACK_SLOTS 8
@@ -211,6 +216,10 @@ efi_status_t efi_high_alloc(efi_system_table_t *sys_table_arg,
if (desc->type != EFI_CONVENTIONAL_MEMORY)
continue;
+ if (efi_soft_reserve_enabled() &&
+ (desc->attribute & EFI_MEMORY_SP))
+ continue;
+
if (desc->num_pages < nr_pages)
continue;
@@ -305,6 +314,10 @@ efi_status_t efi_low_alloc_above(efi_system_table_t *sys_table_arg,
if (desc->type != EFI_CONVENTIONAL_MEMORY)
continue;
+ if (efi_soft_reserve_enabled() &&
+ (desc->attribute & EFI_MEMORY_SP))
+ continue;
+
if (desc->num_pages < nr_pages)
continue;
@@ -484,6 +497,12 @@ efi_status_t efi_parse_options(char const *cmdline)
__novamap = 1;
}
+ if (IS_ENABLED(CONFIG_EFI_SOFT_RESERVE) &&
+ !strncmp(str, "nosoftreserve", 7)) {
+ str += strlen("nosoftreserve");
+ efi_nosoftreserve = 1;
+ }
+
/* Group words together, delimited by "," */
while (*str && *str != ' ' && *str != ',')
str++;
diff --git a/drivers/firmware/efi/libstub/random.c b/drivers/firmware/efi/libstub/random.c
index 53f1466..35edd7c 100644
--- a/drivers/firmware/efi/libstub/random.c
+++ b/drivers/firmware/efi/libstub/random.c
@@ -58,6 +58,10 @@ static unsigned long get_entry_num_slots(efi_memory_desc_t *md,
if (md->type != EFI_CONVENTIONAL_MEMORY)
return 0;
+ if (efi_soft_reserve_enabled() &&
+ (md->attribute & EFI_MEMORY_SP))
+ return 0;
+
region_end = min((u64)ULONG_MAX, md->phys_addr + md->num_pages*EFI_PAGE_SIZE - 1);
first_slot = round_up(md->phys_addr, align);
diff --git a/drivers/firmware/efi/x86_fake_mem.c b/drivers/firmware/efi/x86_fake_mem.c
new file mode 100644
index 0000000..e5d6d5a
--- /dev/null
+++ b/drivers/firmware/efi/x86_fake_mem.c
@@ -0,0 +1,69 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright(c) 2019 Intel Corporation. All rights reserved. */
+#include <linux/efi.h>
+#include <asm/e820/api.h>
+#include "fake_mem.h"
+
+void __init efi_fake_memmap_early(void)
+{
+ int i;
+
+ /*
+ * The late efi_fake_mem() call can handle all requests if
+ * EFI_MEMORY_SP support is disabled.
+ */
+ if (!efi_soft_reserve_enabled())
+ return;
+
+ if (!efi_enabled(EFI_MEMMAP) || !nr_fake_mem)
+ return;
+
+ /*
+ * Given that efi_fake_memmap() needs to perform memblock
+ * allocations it needs to run after e820__memblock_setup().
+ * However, if efi_fake_mem specifies EFI_MEMORY_SP for a given
+ * address range that potentially needs to mark the memory as
+ * reserved prior to e820__memblock_setup(). Update e820
+ * directly if EFI_MEMORY_SP is specified for an
+ * EFI_CONVENTIONAL_MEMORY descriptor.
+ */
+ for (i = 0; i < nr_fake_mem; i++) {
+ struct efi_mem_range *mem = &efi_fake_mems[i];
+ efi_memory_desc_t *md;
+ u64 m_start, m_end;
+
+ if ((mem->attribute & EFI_MEMORY_SP) == 0)
+ continue;
+
+ m_start = mem->range.start;
+ m_end = mem->range.end;
+ for_each_efi_memory_desc(md) {
+ u64 start, end;
+
+ if (md->type != EFI_CONVENTIONAL_MEMORY)
+ continue;
+
+ start = md->phys_addr;
+ end = md->phys_addr + (md->num_pages << EFI_PAGE_SHIFT) - 1;
+
+ if (m_start <= end && m_end >= start)
+ /* fake range overlaps descriptor */;
+ else
+ continue;
+
+ /*
+ * Trim the boundary of the e820 update to the
+ * descriptor in case the fake range overlaps
+ * !EFI_CONVENTIONAL_MEMORY
+ */
+ start = max(start, m_start);
+ end = min(end, m_end);
+
+ if (end <= start)
+ continue;
+ e820__range_update(start, end - start + 1, E820_TYPE_RAM,
+ E820_TYPE_SOFT_RESERVED);
+ e820__update_table(e820_table);
+ }
+ }
+}
diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c
index 347b08b..75fd2a7 100644
--- a/drivers/idle/intel_idle.c
+++ b/drivers/idle/intel_idle.c
@@ -1291,8 +1291,8 @@ static void sklh_idle_state_table_update(void)
return;
}
- skl_cstates[5].disabled = 1; /* C8-SKL */
- skl_cstates[6].disabled = 1; /* C9-SKL */
+ skl_cstates[5].flags |= CPUIDLE_FLAG_UNUSABLE; /* C8-SKL */
+ skl_cstates[6].flags |= CPUIDLE_FLAG_UNUSABLE; /* C9-SKL */
}
/*
* intel_idle_state_table_update()
@@ -1355,7 +1355,7 @@ static void __init intel_idle_cpuidle_driver_init(void)
continue;
/* if state marked as disabled, skip it */
- if (cpuidle_state_table[cstate].disabled != 0) {
+ if (cpuidle_state_table[cstate].flags & CPUIDLE_FLAG_UNUSABLE) {
pr_debug("state %s is disabled\n",
cpuidle_state_table[cstate].name);
continue;
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index dd55507..12e5039 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -124,30 +124,6 @@ static struct lock_class_key reserved_rbtree_key;
*
****************************************************************************/
-static inline int match_hid_uid(struct device *dev,
- struct acpihid_map_entry *entry)
-{
- struct acpi_device *adev = ACPI_COMPANION(dev);
- const char *hid, *uid;
-
- if (!adev)
- return -ENODEV;
-
- hid = acpi_device_hid(adev);
- uid = acpi_device_uid(adev);
-
- if (!hid || !(*hid))
- return -ENODEV;
-
- if (!uid || !(*uid))
- return strcmp(hid, entry->hid);
-
- if (!(*entry->uid))
- return strcmp(hid, entry->hid);
-
- return (strcmp(hid, entry->hid) || strcmp(uid, entry->uid));
-}
-
static inline u16 get_pci_device_id(struct device *dev)
{
struct pci_dev *pdev = to_pci_dev(dev);
@@ -158,10 +134,14 @@ static inline u16 get_pci_device_id(struct device *dev)
static inline int get_acpihid_device_id(struct device *dev,
struct acpihid_map_entry **entry)
{
+ struct acpi_device *adev = ACPI_COMPANION(dev);
struct acpihid_map_entry *p;
+ if (!adev)
+ return -ENODEV;
+
list_for_each_entry(p, &acpihid_map, list) {
- if (!match_hid_uid(dev, p)) {
+ if (acpi_dev_hid_uid_match(adev, p->hid, p->uid)) {
if (entry)
*entry = p;
return p->devid;
diff --git a/drivers/mfd/intel_soc_pmic_crc.c b/drivers/mfd/intel_soc_pmic_crc.c
index b6ab72f..ab09b82 100644
--- a/drivers/mfd/intel_soc_pmic_crc.c
+++ b/drivers/mfd/intel_soc_pmic_crc.c
@@ -75,7 +75,7 @@ static struct mfd_cell crystal_cove_byt_dev[] = {
.resources = gpio_resources,
},
{
- .name = "crystal_cove_pmic",
+ .name = "byt_crystal_cove_pmic",
},
{
.name = "crystal_cove_pwm",
diff --git a/drivers/mmc/host/sdhci-acpi.c b/drivers/mmc/host/sdhci-acpi.c
index 1604f51..105e73d 100644
--- a/drivers/mmc/host/sdhci-acpi.c
+++ b/drivers/mmc/host/sdhci-acpi.c
@@ -61,7 +61,7 @@ struct sdhci_acpi_slot {
mmc_pm_flag_t pm_caps;
unsigned int flags;
size_t priv_size;
- int (*probe_slot)(struct platform_device *, const char *, const char *);
+ int (*probe_slot)(struct platform_device *, struct acpi_device *);
int (*remove_slot)(struct platform_device *);
int (*free_slot)(struct platform_device *pdev);
int (*setup_host)(struct platform_device *pdev);
@@ -325,12 +325,10 @@ static bool sdhci_acpi_cht_pci_wifi(unsigned int vendor, unsigned int device,
* wifi card in the expected slot with an ACPI companion node, is used to
* indicate that acpi_device_fix_up_power() should be avoided.
*/
-static inline bool sdhci_acpi_no_fixup_child_power(const char *hid,
- const char *uid)
+static inline bool sdhci_acpi_no_fixup_child_power(struct acpi_device *adev)
{
return sdhci_acpi_cht() &&
- !strcmp(hid, "80860F14") &&
- !strcmp(uid, "2") &&
+ acpi_dev_hid_uid_match(adev, "80860F14", "2") &&
sdhci_acpi_cht_pci_wifi(0x14e4, 0x43ec, 0, 28);
}
@@ -345,8 +343,7 @@ static inline bool sdhci_acpi_byt_defer(struct device *dev)
return false;
}
-static inline bool sdhci_acpi_no_fixup_child_power(const char *hid,
- const char *uid)
+static inline bool sdhci_acpi_no_fixup_child_power(struct acpi_device *adev)
{
return false;
}
@@ -375,19 +372,18 @@ static int bxt_get_cd(struct mmc_host *mmc)
return ret;
}
-static int intel_probe_slot(struct platform_device *pdev, const char *hid,
- const char *uid)
+static int intel_probe_slot(struct platform_device *pdev, struct acpi_device *adev)
{
struct sdhci_acpi_host *c = platform_get_drvdata(pdev);
struct intel_host *intel_host = sdhci_acpi_priv(c);
struct sdhci_host *host = c->host;
- if (hid && uid && !strcmp(hid, "80860F14") && !strcmp(uid, "1") &&
+ if (acpi_dev_hid_uid_match(adev, "80860F14", "1") &&
sdhci_readl(host, SDHCI_CAPABILITIES) == 0x446cc8b2 &&
sdhci_readl(host, SDHCI_CAPABILITIES_1) == 0x00000807)
host->timeout_clk = 1000; /* 1000 kHz i.e. 1 MHz */
- if (hid && !strcmp(hid, "80865ACA"))
+ if (acpi_dev_hid_uid_match(adev, "80865ACA", NULL))
host->mmc_host_ops.get_cd = bxt_get_cd;
intel_dsm_init(intel_host, &pdev->dev, host->mmc);
@@ -473,8 +469,7 @@ static irqreturn_t sdhci_acpi_qcom_handler(int irq, void *ptr)
return IRQ_HANDLED;
}
-static int qcom_probe_slot(struct platform_device *pdev, const char *hid,
- const char *uid)
+static int qcom_probe_slot(struct platform_device *pdev, struct acpi_device *adev)
{
struct sdhci_acpi_host *c = platform_get_drvdata(pdev);
struct sdhci_host *host = c->host;
@@ -482,7 +477,7 @@ static int qcom_probe_slot(struct platform_device *pdev, const char *hid,
*irq = -EINVAL;
- if (strcmp(hid, "QCOM8051"))
+ if (!acpi_dev_hid_uid_match(adev, "QCOM8051", NULL))
return 0;
*irq = platform_get_irq(pdev, 1);
@@ -501,14 +496,12 @@ static int qcom_free_slot(struct platform_device *pdev)
struct sdhci_host *host = c->host;
struct acpi_device *adev;
int *irq = sdhci_acpi_priv(c);
- const char *hid;
adev = ACPI_COMPANION(dev);
if (!adev)
return -ENODEV;
- hid = acpi_device_hid(adev);
- if (strcmp(hid, "QCOM8051"))
+ if (!acpi_dev_hid_uid_match(adev, "QCOM8051", NULL))
return 0;
if (*irq < 0)
@@ -583,7 +576,7 @@ static const struct sdhci_acpi_chip sdhci_acpi_chip_amd = {
};
static int sdhci_acpi_emmc_amd_probe_slot(struct platform_device *pdev,
- const char *hid, const char *uid)
+ struct acpi_device *adev)
{
struct sdhci_acpi_host *c = platform_get_drvdata(pdev);
struct sdhci_host *host = c->host;
@@ -654,17 +647,12 @@ static const struct acpi_device_id sdhci_acpi_ids[] = {
};
MODULE_DEVICE_TABLE(acpi, sdhci_acpi_ids);
-static const struct sdhci_acpi_slot *sdhci_acpi_get_slot(const char *hid,
- const char *uid)
+static const struct sdhci_acpi_slot *sdhci_acpi_get_slot(struct acpi_device *adev)
{
const struct sdhci_acpi_uid_slot *u;
for (u = sdhci_acpi_uids; u->hid; u++) {
- if (strcmp(u->hid, hid))
- continue;
- if (!u->uid)
- return u->slot;
- if (uid && !strcmp(u->uid, uid))
+ if (acpi_dev_hid_uid_match(adev, u->hid, u->uid))
return u->slot;
}
return NULL;
@@ -680,22 +668,17 @@ static int sdhci_acpi_probe(struct platform_device *pdev)
struct resource *iomem;
resource_size_t len;
size_t priv_size;
- const char *hid;
- const char *uid;
int err;
device = ACPI_COMPANION(dev);
if (!device)
return -ENODEV;
- hid = acpi_device_hid(device);
- uid = acpi_device_uid(device);
-
- slot = sdhci_acpi_get_slot(hid, uid);
+ slot = sdhci_acpi_get_slot(device);
/* Power on the SDHCI controller and its children */
acpi_device_fix_up_power(device);
- if (!sdhci_acpi_no_fixup_child_power(hid, uid)) {
+ if (!sdhci_acpi_no_fixup_child_power(device)) {
list_for_each_entry(child, &device->children, node)
if (child->status.present && child->status.enabled)
acpi_device_fix_up_power(child);
@@ -745,7 +728,7 @@ static int sdhci_acpi_probe(struct platform_device *pdev)
if (c->slot) {
if (c->slot->probe_slot) {
- err = c->slot->probe_slot(pdev, hid, uid);
+ err = c->slot->probe_slot(pdev, device);
if (err)
goto err_free;
}
diff --git a/drivers/nvdimm/Kconfig b/drivers/nvdimm/Kconfig
index 36af7af..b7d1eb3 100644
--- a/drivers/nvdimm/Kconfig
+++ b/drivers/nvdimm/Kconfig
@@ -4,6 +4,7 @@
depends on PHYS_ADDR_T_64BIT
depends on HAS_IOMEM
depends on BLK_DEV
+ select MEMREGION
help
Generic support for non-volatile memory devices including
ACPI-6-NFIT defined resources. On platforms that define an
diff --git a/drivers/nvdimm/core.c b/drivers/nvdimm/core.c
index 9204f1e..e592c49 100644
--- a/drivers/nvdimm/core.c
+++ b/drivers/nvdimm/core.c
@@ -455,7 +455,6 @@ static __exit void libnvdimm_exit(void)
nd_region_exit();
nvdimm_exit();
nvdimm_bus_exit();
- nd_region_devs_exit();
nvdimm_devs_exit();
}
diff --git a/drivers/nvdimm/nd-core.h b/drivers/nvdimm/nd-core.h
index 25fa121..aa05943 100644
--- a/drivers/nvdimm/nd-core.h
+++ b/drivers/nvdimm/nd-core.h
@@ -114,7 +114,6 @@ struct nvdimm_bus *walk_to_nvdimm_bus(struct device *nd_dev);
int __init nvdimm_bus_init(void);
void nvdimm_bus_exit(void);
void nvdimm_devs_exit(void);
-void nd_region_devs_exit(void);
struct nd_region;
void nd_region_advance_seeds(struct nd_region *nd_region, struct device *dev);
void nd_region_create_ns_seed(struct nd_region *nd_region);
diff --git a/drivers/nvdimm/region_devs.c b/drivers/nvdimm/region_devs.c
index ef423ba1a7..fbf34cf 100644
--- a/drivers/nvdimm/region_devs.c
+++ b/drivers/nvdimm/region_devs.c
@@ -3,6 +3,7 @@
* Copyright(c) 2013-2015 Intel Corporation. All rights reserved.
*/
#include <linux/scatterlist.h>
+#include <linux/memregion.h>
#include <linux/highmem.h>
#include <linux/sched.h>
#include <linux/slab.h>
@@ -19,7 +20,6 @@
*/
#include <linux/io-64-nonatomic-hi-lo.h>
-static DEFINE_IDA(region_ida);
static DEFINE_PER_CPU(int, flush_idx);
static int nvdimm_map_flush(struct device *dev, struct nvdimm *nvdimm, int dimm,
@@ -133,7 +133,7 @@ static void nd_region_release(struct device *dev)
put_device(&nvdimm->dev);
}
free_percpu(nd_region->lane);
- ida_simple_remove(®ion_ida, nd_region->id);
+ memregion_free(nd_region->id);
if (is_nd_blk(dev))
kfree(to_nd_blk_region(dev));
else
@@ -985,7 +985,7 @@ static struct nd_region *nd_region_create(struct nvdimm_bus *nvdimm_bus,
if (!region_buf)
return NULL;
- nd_region->id = ida_simple_get(®ion_ida, 0, 0, GFP_KERNEL);
+ nd_region->id = memregion_alloc(GFP_KERNEL);
if (nd_region->id < 0)
goto err_id;
@@ -1044,7 +1044,7 @@ static struct nd_region *nd_region_create(struct nvdimm_bus *nvdimm_bus,
return nd_region;
err_percpu:
- ida_simple_remove(®ion_ida, nd_region->id);
+ memregion_free(nd_region->id);
err_id:
kfree(region_buf);
return NULL;
@@ -1216,8 +1216,3 @@ int nd_region_conflict(struct nd_region *nd_region, resource_size_t start,
return device_for_each_child(&nvdimm_bus->dev, &ctx, region_conflict);
}
-
-void __exit nd_region_devs_exit(void)
-{
- ida_destroy(®ion_ida);
-}
diff --git a/drivers/power/avs/Kconfig b/drivers/power/avs/Kconfig
index b5a217b..089b624 100644
--- a/drivers/power/avs/Kconfig
+++ b/drivers/power/avs/Kconfig
@@ -13,9 +13,9 @@
Say Y here to enable Adaptive Voltage Scaling class support.
config ROCKCHIP_IODOMAIN
- tristate "Rockchip IO domain support"
- depends on POWER_AVS && ARCH_ROCKCHIP && OF
- help
- Say y here to enable support io domains on Rockchip SoCs. It is
- necessary for the io domain setting of the SoC to match the
- voltage supplied by the regulators.
+ tristate "Rockchip IO domain support"
+ depends on POWER_AVS && ARCH_ROCKCHIP && OF
+ help
+ Say y here to enable support io domains on Rockchip SoCs. It is
+ necessary for the io domain setting of the SoC to match the
+ voltage supplied by the regulators.
diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
index 175f7b4..0c23fd0 100644
--- a/include/acpi/acpi_bus.h
+++ b/include/acpi/acpi_bus.h
@@ -78,9 +78,6 @@ acpi_evaluate_dsm_typed(acpi_handle handle, const guid_t *guid, u64 rev,
bool acpi_dev_found(const char *hid);
bool acpi_dev_present(const char *hid, const char *uid, s64 hrv);
-struct acpi_device *
-acpi_dev_get_first_match_dev(const char *hid, const char *uid, s64 hrv);
-
#ifdef CONFIG_ACPI
#include <linux/proc_fs.h>
@@ -683,6 +680,11 @@ static inline bool acpi_device_can_poweroff(struct acpi_device *adev)
adev->power.states[ACPI_STATE_D3_HOT].flags.explicit_set);
}
+bool acpi_dev_hid_uid_match(struct acpi_device *adev, const char *hid2, const char *uid2);
+
+struct acpi_device *
+acpi_dev_get_first_match_dev(const char *hid, const char *uid, s64 hrv);
+
static inline void acpi_dev_put(struct acpi_device *adev)
{
put_device(&adev->dev);
diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h
index e5e0414..18790b9 100644
--- a/include/acpi/acpixf.h
+++ b/include/acpi/acpixf.h
@@ -12,7 +12,7 @@
/* Current ACPICA subsystem version in YYYYMMDD format */
-#define ACPI_CA_VERSION 0x20190816
+#define ACPI_CA_VERSION 0x20191018
#include <acpi/acconfig.h>
#include <acpi/actypes.h>
@@ -458,7 +458,11 @@ ACPI_EXTERNAL_RETURN_STATUS(acpi_status ACPI_INIT_FUNCTION
u8 physical))
ACPI_EXTERNAL_RETURN_STATUS(acpi_status
- acpi_load_table(struct acpi_table_header *table))
+ acpi_load_table(struct acpi_table_header *table,
+ u32 *table_idx))
+
+ACPI_EXTERNAL_RETURN_STATUS(acpi_status
+ acpi_unload_table(u32 table_index))
ACPI_EXTERNAL_RETURN_STATUS(acpi_status
acpi_unload_parent_table(acpi_handle object))
diff --git a/include/acpi/button.h b/include/acpi/button.h
index 3a2b853..340da77 100644
--- a/include/acpi/button.h
+++ b/include/acpi/button.h
@@ -2,21 +2,9 @@
#ifndef ACPI_BUTTON_H
#define ACPI_BUTTON_H
-#include <linux/notifier.h>
-
#if IS_ENABLED(CONFIG_ACPI_BUTTON)
-extern int acpi_lid_notifier_register(struct notifier_block *nb);
-extern int acpi_lid_notifier_unregister(struct notifier_block *nb);
extern int acpi_lid_open(void);
#else
-static inline int acpi_lid_notifier_register(struct notifier_block *nb)
-{
- return 0;
-}
-static inline int acpi_lid_notifier_unregister(struct notifier_block *nb)
-{
- return 0;
-}
static inline int acpi_lid_open(void)
{
return 1;
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 8b4e516..0f37a7d 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -678,6 +678,14 @@ static inline bool acpi_dev_present(const char *hid, const char *uid, s64 hrv)
return false;
}
+struct acpi_device;
+
+static inline bool
+acpi_dev_hid_uid_match(struct acpi_device *adev, const char *hid2, const char *uid2)
+{
+ return false;
+}
+
static inline struct acpi_device *
acpi_dev_get_first_match_dev(const char *hid, const char *uid, s64 hrv)
{
diff --git a/include/linux/cpuidle.h b/include/linux/cpuidle.h
index 2dbe46b..1dabe36 100644
--- a/include/linux/cpuidle.h
+++ b/include/linux/cpuidle.h
@@ -54,7 +54,6 @@ struct cpuidle_state {
unsigned int exit_latency; /* in US */
int power_usage; /* in mW */
unsigned int target_residency; /* in US */
- bool disabled; /* disabled on all CPUs */
int (*enter) (struct cpuidle_device *dev,
struct cpuidle_driver *drv,
@@ -77,6 +76,7 @@ struct cpuidle_state {
#define CPUIDLE_FLAG_POLLING BIT(0) /* polling state */
#define CPUIDLE_FLAG_COUPLED BIT(1) /* state applies to multiple cpus */
#define CPUIDLE_FLAG_TIMER_STOP BIT(2) /* timer is stopped on this state */
+#define CPUIDLE_FLAG_UNUSABLE BIT(3) /* avoid using this state */
struct cpuidle_device_kobj;
struct cpuidle_state_kobj;
diff --git a/include/linux/efi.h b/include/linux/efi.h
index 028efa7..99dfea5 100644
--- a/include/linux/efi.h
+++ b/include/linux/efi.h
@@ -112,6 +112,7 @@ typedef struct {
#define EFI_MEMORY_MORE_RELIABLE \
((u64)0x0000000000010000ULL) /* higher reliability */
#define EFI_MEMORY_RO ((u64)0x0000000000020000ULL) /* read-only */
+#define EFI_MEMORY_SP ((u64)0x0000000000040000ULL) /* soft reserved */
#define EFI_MEMORY_RUNTIME ((u64)0x8000000000000000ULL) /* range requires runtime mapping */
#define EFI_MEMORY_DESCRIPTOR_VERSION 1
@@ -1044,7 +1045,6 @@ extern void efi_enter_virtual_mode (void); /* switch EFI to virtual mode, if pos
extern efi_status_t efi_query_variable_store(u32 attributes,
unsigned long size,
bool nonblocking);
-extern void efi_find_mirror(void);
#else
static inline efi_status_t efi_query_variable_store(u32 attributes,
@@ -1202,6 +1202,7 @@ extern int __init efi_setup_pcdp_console(char *);
#define EFI_DBG 8 /* Print additional debug info at runtime */
#define EFI_NX_PE_DATA 9 /* Can runtime data regions be mapped non-executable? */
#define EFI_MEM_ATTR 10 /* Did firmware publish an EFI_MEMORY_ATTRIBUTES table? */
+#define EFI_MEM_NO_SOFT_RESERVE 11 /* Is the kernel configured to ignore soft reservations? */
#ifdef CONFIG_EFI
/*
@@ -1212,6 +1213,14 @@ static inline bool efi_enabled(int feature)
return test_bit(feature, &efi.flags) != 0;
}
extern void efi_reboot(enum reboot_mode reboot_mode, const char *__unused);
+
+bool __pure __efi_soft_reserve_enabled(void);
+
+static inline bool __pure efi_soft_reserve_enabled(void)
+{
+ return IS_ENABLED(CONFIG_EFI_SOFT_RESERVE)
+ && __efi_soft_reserve_enabled();
+}
#else
static inline bool efi_enabled(int feature)
{
@@ -1225,6 +1234,11 @@ efi_capsule_pending(int *reset_type)
{
return false;
}
+
+static inline bool efi_soft_reserve_enabled(void)
+{
+ return false;
+}
#endif
extern int efi_status_to_err(efi_status_t status);
diff --git a/include/linux/ioport.h b/include/linux/ioport.h
index 7bddddf..a9b9170 100644
--- a/include/linux/ioport.h
+++ b/include/linux/ioport.h
@@ -134,6 +134,7 @@ enum {
IORES_DESC_PERSISTENT_MEMORY_LEGACY = 5,
IORES_DESC_DEVICE_PRIVATE_MEMORY = 6,
IORES_DESC_RESERVED = 7,
+ IORES_DESC_SOFT_RESERVED = 8,
};
/*
diff --git a/include/linux/memregion.h b/include/linux/memregion.h
new file mode 100644
index 0000000..e115952
--- /dev/null
+++ b/include/linux/memregion.h
@@ -0,0 +1,23 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _MEMREGION_H_
+#define _MEMREGION_H_
+#include <linux/types.h>
+#include <linux/errno.h>
+
+struct memregion_info {
+ int target_node;
+};
+
+#ifdef CONFIG_MEMREGION
+int memregion_alloc(gfp_t gfp);
+void memregion_free(int id);
+#else
+static inline int memregion_alloc(gfp_t gfp)
+{
+ return -ENOMEM;
+}
+void memregion_free(int id)
+{
+}
+#endif
+#endif /* _MEMREGION_H_ */
diff --git a/include/linux/pm_qos.h b/include/linux/pm_qos.h
index ebf5ef1..19eafca 100644
--- a/include/linux/pm_qos.h
+++ b/include/linux/pm_qos.h
@@ -34,6 +34,8 @@ enum pm_qos_flags_status {
#define PM_QOS_RESUME_LATENCY_NO_CONSTRAINT PM_QOS_LATENCY_ANY
#define PM_QOS_RESUME_LATENCY_NO_CONSTRAINT_NS PM_QOS_LATENCY_ANY_NS
#define PM_QOS_LATENCY_TOLERANCE_DEFAULT_VALUE 0
+#define PM_QOS_MIN_FREQUENCY_DEFAULT_VALUE 0
+#define PM_QOS_MAX_FREQUENCY_DEFAULT_VALUE FREQ_QOS_MAX_DEFAULT_VALUE
#define PM_QOS_LATENCY_TOLERANCE_NO_CONSTRAINT (-1)
#define PM_QOS_FLAG_NO_POWER_OFF (1 << 0)
@@ -49,21 +51,6 @@ struct pm_qos_flags_request {
s32 flags; /* Do not change to 64 bit */
};
-enum dev_pm_qos_req_type {
- DEV_PM_QOS_RESUME_LATENCY = 1,
- DEV_PM_QOS_LATENCY_TOLERANCE,
- DEV_PM_QOS_FLAGS,
-};
-
-struct dev_pm_qos_request {
- enum dev_pm_qos_req_type type;
- union {
- struct plist_node pnode;
- struct pm_qos_flags_request flr;
- } data;
- struct device *dev;
-};
-
enum pm_qos_type {
PM_QOS_UNITIALIZED,
PM_QOS_MAX, /* return the largest value */
@@ -90,9 +77,51 @@ struct pm_qos_flags {
s32 effective_flags; /* Do not change to 64 bit */
};
+
+#define FREQ_QOS_MIN_DEFAULT_VALUE 0
+#define FREQ_QOS_MAX_DEFAULT_VALUE S32_MAX
+
+enum freq_qos_req_type {
+ FREQ_QOS_MIN = 1,
+ FREQ_QOS_MAX,
+};
+
+struct freq_constraints {
+ struct pm_qos_constraints min_freq;
+ struct blocking_notifier_head min_freq_notifiers;
+ struct pm_qos_constraints max_freq;
+ struct blocking_notifier_head max_freq_notifiers;
+};
+
+struct freq_qos_request {
+ enum freq_qos_req_type type;
+ struct plist_node pnode;
+ struct freq_constraints *qos;
+};
+
+
+enum dev_pm_qos_req_type {
+ DEV_PM_QOS_RESUME_LATENCY = 1,
+ DEV_PM_QOS_LATENCY_TOLERANCE,
+ DEV_PM_QOS_MIN_FREQUENCY,
+ DEV_PM_QOS_MAX_FREQUENCY,
+ DEV_PM_QOS_FLAGS,
+};
+
+struct dev_pm_qos_request {
+ enum dev_pm_qos_req_type type;
+ union {
+ struct plist_node pnode;
+ struct pm_qos_flags_request flr;
+ struct freq_qos_request freq;
+ } data;
+ struct device *dev;
+};
+
struct dev_pm_qos {
struct pm_qos_constraints resume_latency;
struct pm_qos_constraints latency_tolerance;
+ struct freq_constraints freq;
struct pm_qos_flags flags;
struct dev_pm_qos_request *resume_latency_req;
struct dev_pm_qos_request *latency_tolerance_req;
@@ -191,6 +220,10 @@ static inline s32 dev_pm_qos_read_value(struct device *dev,
switch (type) {
case DEV_PM_QOS_RESUME_LATENCY:
return PM_QOS_RESUME_LATENCY_NO_CONSTRAINT;
+ case DEV_PM_QOS_MIN_FREQUENCY:
+ return PM_QOS_MIN_FREQUENCY_DEFAULT_VALUE;
+ case DEV_PM_QOS_MAX_FREQUENCY:
+ return PM_QOS_MAX_FREQUENCY_DEFAULT_VALUE;
default:
WARN_ON(1);
return 0;
@@ -255,27 +288,6 @@ static inline s32 dev_pm_qos_raw_resume_latency(struct device *dev)
}
#endif
-#define FREQ_QOS_MIN_DEFAULT_VALUE 0
-#define FREQ_QOS_MAX_DEFAULT_VALUE (-1)
-
-enum freq_qos_req_type {
- FREQ_QOS_MIN = 1,
- FREQ_QOS_MAX,
-};
-
-struct freq_constraints {
- struct pm_qos_constraints min_freq;
- struct blocking_notifier_head min_freq_notifiers;
- struct pm_qos_constraints max_freq;
- struct blocking_notifier_head max_freq_notifiers;
-};
-
-struct freq_qos_request {
- enum freq_qos_req_type type;
- struct plist_node pnode;
- struct freq_constraints *qos;
-};
-
static inline int freq_qos_request_active(struct freq_qos_request *req)
{
return !IS_ERR_OR_NULL(req->qos);
@@ -291,6 +303,8 @@ int freq_qos_add_request(struct freq_constraints *qos,
enum freq_qos_req_type type, s32 value);
int freq_qos_update_request(struct freq_qos_request *req, s32 new_value);
int freq_qos_remove_request(struct freq_qos_request *req);
+int freq_qos_apply(struct freq_qos_request *req,
+ enum pm_qos_req_action action, s32 value);
int freq_qos_add_notifier(struct freq_constraints *qos,
enum freq_qos_req_type type,
diff --git a/kernel/power/qos.c b/kernel/power/qos.c
index a45cba7..83edf86 100644
--- a/kernel/power/qos.c
+++ b/kernel/power/qos.c
@@ -714,8 +714,10 @@ s32 freq_qos_read_value(struct freq_constraints *qos,
* @req: Constraint request to apply.
* @action: Action to perform (add/update/remove).
* @value: Value to assign to the QoS request.
+ *
+ * This is only meant to be called from inside pm_qos, not drivers.
*/
-static int freq_qos_apply(struct freq_qos_request *req,
+int freq_qos_apply(struct freq_qos_request *req,
enum pm_qos_req_action action, s32 value)
{
int ret;
diff --git a/lib/Kconfig b/lib/Kconfig
index 3321d04..681b7e5 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -605,6 +605,9 @@
config ARCH_HAS_PMEM_API
bool
+config MEMREGION
+ bool
+
# use memcpy to implement user copies for nommu architectures
config UACCESS_MEMCPY
bool
diff --git a/lib/Makefile b/lib/Makefile
index b7f0ea9..c2f0e2a 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -214,6 +214,7 @@
obj-$(CONFIG_SG_SPLIT) += sg_split.o
obj-$(CONFIG_SG_POOL) += sg_pool.o
+obj-$(CONFIG_MEMREGION) += memregion.o
obj-$(CONFIG_STMP_DEVICE) += stmp_device.o
obj-$(CONFIG_IRQ_POLL) += irq_poll.o
diff --git a/lib/memregion.c b/lib/memregion.c
new file mode 100644
index 0000000..77c85b5
--- /dev/null
+++ b/lib/memregion.c
@@ -0,0 +1,18 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/* identifiers for device / performance-differentiated memory regions */
+#include <linux/idr.h>
+#include <linux/types.h>
+
+static DEFINE_IDA(memregion_ids);
+
+int memregion_alloc(gfp_t gfp)
+{
+ return ida_alloc(&memregion_ids, gfp);
+}
+EXPORT_SYMBOL(memregion_alloc);
+
+void memregion_free(int id)
+{
+ ida_free(&memregion_ids, id);
+}
+EXPORT_SYMBOL(memregion_free);