diff options
187 files changed, 3487 insertions, 2126 deletions
diff --git a/Documentation/acpi/namespace.txt b/Documentation/acpi/namespace.txt index 260f6a3661fa..1860cb3865c6 100644 --- a/Documentation/acpi/namespace.txt +++ b/Documentation/acpi/namespace.txt @@ -235,10 +235,6 @@ Wysocki <rafael.j.wysocki@intel.com>. named object's type in the second column). In that case the object's directory in sysfs will contain the 'path' attribute whose value is the full path to the node from the namespace root. - struct acpi_device objects are created for the ACPI namespace nodes - whose _STA control methods return PRESENT or FUNCTIONING. The power - resource nodes or nodes without _STA are assumed to be both PRESENT - and FUNCTIONING. F: The struct acpi_device object is created for a fixed hardware feature (as indicated by the fixed feature flag's name in the second @@ -340,7 +336,7 @@ Wysocki <rafael.j.wysocki@intel.com>. | +-------------+-------+----------------+ | | | | +- - - - - - - +- - - - - - +- - - - - - - -+ - | +-| * PNP0C0D:00 | \_SB_.LID0 | acpi:PNP0C0D: | + | +-| PNP0C0D:00 | \_SB_.LID0 | acpi:PNP0C0D: | | | +- - - - - - - +- - - - - - +- - - - - - - -+ | | | | +------------+------------+-----------------------+ @@ -390,6 +386,3 @@ Wysocki <rafael.j.wysocki@intel.com>. attribute (as described earlier in this document). NOTE: N/A indicates the device object does not have the 'path' or the 'modalias' attribute. - NOTE: The PNP0C0D device listed above is highlighted (marked by "*") - to indicate it will be created only when its _STA methods return - PRESENT or FUNCTIONING. diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt index b9e9bd854298..620122946c5b 100644 --- a/Documentation/kernel-parameters.txt +++ b/Documentation/kernel-parameters.txt @@ -343,6 +343,9 @@ bytes respectively. Such letter suffixes can also be entirely omitted. no: ACPI OperationRegions are not marked as reserved, no further checks are performed. + acpi_no_memhotplug [ACPI] Disable memory hotplug. Useful for kdump + kernels. + add_efi_memmap [EFI; X86] Include EFI memory map in kernel's map of available physical RAM. diff --git a/arch/arm/mach-exynos/cpuidle.c b/arch/arm/mach-exynos/cpuidle.c index ddbfe8709fe7..8e0eb2ef8c41 100644 --- a/arch/arm/mach-exynos/cpuidle.c +++ b/arch/arm/mach-exynos/cpuidle.c @@ -151,8 +151,8 @@ static int exynos4_enter_lowpower(struct cpuidle_device *dev, { int new_index = index; - /* This mode only can be entered when other core's are offline */ - if (num_online_cpus() > 1) + /* AFTR can only be entered when cores other than CPU0 are offline */ + if (num_online_cpus() > 1 || dev->cpu != 0) new_index = drv->safe_state_index; if (new_index == 0) @@ -214,10 +214,6 @@ static int exynos_cpuidle_probe(struct platform_device *pdev) device = &per_cpu(exynos4_cpuidle_device, cpu_id); device->cpu = cpu_id; - /* Support IDLE only */ - if (cpu_id != 0) - device->state_count = 1; - ret = cpuidle_register_device(device); if (ret) { dev_err(&pdev->dev, "failed to register cpuidle device\n"); diff --git a/arch/ia64/hp/common/aml_nfw.c b/arch/ia64/hp/common/aml_nfw.c index 916ffe770bcf..84715fcbba08 100644 --- a/arch/ia64/hp/common/aml_nfw.c +++ b/arch/ia64/hp/common/aml_nfw.c @@ -23,8 +23,7 @@ */ #include <linux/module.h> -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> +#include <linux/acpi.h> #include <asm/sal.h> MODULE_AUTHOR("Bjorn Helgaas <bjorn.helgaas@hp.com>"); diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c index 59d52e3aef12..28dc6ba6690a 100644 --- a/arch/ia64/kernel/acpi.c +++ b/arch/ia64/kernel/acpi.c @@ -61,7 +61,6 @@ #define PREFIX "ACPI: " -u32 acpi_rsdt_forced; unsigned int acpi_cpei_override; unsigned int acpi_cpei_phys_cpuid; diff --git a/arch/powerpc/platforms/pseries/processor_idle.c b/arch/powerpc/platforms/pseries/processor_idle.c index a166e38bd683..94134a5aecaa 100644 --- a/arch/powerpc/platforms/pseries/processor_idle.c +++ b/arch/powerpc/platforms/pseries/processor_idle.c @@ -28,7 +28,6 @@ struct cpuidle_driver pseries_idle_driver = { #define MAX_IDLE_STATE_COUNT 2 static int max_idle_state = MAX_IDLE_STATE_COUNT - 1; -static struct cpuidle_device __percpu *pseries_cpuidle_devices; static struct cpuidle_state *cpuidle_state_table; static inline void idle_loop_prolog(unsigned long *in_purr) @@ -191,7 +190,7 @@ static int pseries_cpuidle_add_cpu_notifier(struct notifier_block *n, { int hotcpu = (unsigned long)hcpu; struct cpuidle_device *dev = - per_cpu_ptr(pseries_cpuidle_devices, hotcpu); + per_cpu_ptr(cpuidle_devices, hotcpu); if (dev && cpuidle_get_driver()) { switch (action) { @@ -248,50 +247,6 @@ static int pseries_cpuidle_driver_init(void) return 0; } -/* pseries_idle_devices_uninit(void) - * unregister cpuidle devices and de-allocate memory - */ -static void pseries_idle_devices_uninit(void) -{ - int i; - struct cpuidle_device *dev; - - for_each_possible_cpu(i) { - dev = per_cpu_ptr(pseries_cpuidle_devices, i); - cpuidle_unregister_device(dev); - } - - free_percpu(pseries_cpuidle_devices); - return; -} - -/* pseries_idle_devices_init() - * allocate, initialize and register cpuidle device - */ -static int pseries_idle_devices_init(void) -{ - int i; - struct cpuidle_driver *drv = &pseries_idle_driver; - struct cpuidle_device *dev; - - pseries_cpuidle_devices = alloc_percpu(struct cpuidle_device); - if (pseries_cpuidle_devices == NULL) - return -ENOMEM; - - for_each_possible_cpu(i) { - dev = per_cpu_ptr(pseries_cpuidle_devices, i); - dev->state_count = drv->state_count; - dev->cpu = i; - if (cpuidle_register_device(dev)) { - printk(KERN_DEBUG \ - "cpuidle_register_device %d failed!\n", i); - return -EIO; - } - } - - return 0; -} - /* * pseries_idle_probe() * Choose state table for shared versus dedicated partition @@ -327,19 +282,12 @@ static int __init pseries_processor_idle_init(void) return retval; pseries_cpuidle_driver_init(); - retval = cpuidle_register_driver(&pseries_idle_driver); + retval = cpuidle_register(&pseries_idle_driver, NULL); if (retval) { printk(KERN_DEBUG "Registration of pseries driver failed.\n"); return retval; } - retval = pseries_idle_devices_init(); - if (retval) { - pseries_idle_devices_uninit(); - cpuidle_unregister_driver(&pseries_idle_driver); - return retval; - } - register_cpu_notifier(&setup_hotplug_notifier); printk(KERN_DEBUG "pseries_idle_driver registered\n"); @@ -350,8 +298,7 @@ static void __exit pseries_processor_idle_exit(void) { unregister_cpu_notifier(&setup_hotplug_notifier); - pseries_idle_devices_uninit(); - cpuidle_unregister_driver(&pseries_idle_driver); + cpuidle_unregister(&pseries_idle_driver); return; } diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c index 6c0b43bd024b..0b0b91b83d51 100644 --- a/arch/x86/kernel/acpi/boot.c +++ b/arch/x86/kernel/acpi/boot.c @@ -46,7 +46,6 @@ #include "sleep.h" /* To include x86_acpi_suspend_lowlevel */ static int __initdata acpi_force = 0; -u32 acpi_rsdt_forced; int acpi_disabled; EXPORT_SYMBOL(acpi_disabled); @@ -1564,7 +1563,7 @@ static int __init parse_acpi(char *arg) } /* acpi=rsdt use RSDT instead of XSDT */ else if (strcmp(arg, "rsdt") == 0) { - acpi_rsdt_forced = 1; + acpi_gbl_do_not_use_xsdt = TRUE; } /* "acpi=noirq" disables ACPI interrupt routing */ else if (strcmp(arg, "noirq") == 0) { diff --git a/arch/x86/kernel/apic/apic_flat_64.c b/arch/x86/kernel/apic/apic_flat_64.c index 00c77cf78e9e..ccbf857d1d55 100644 --- a/arch/x86/kernel/apic/apic_flat_64.c +++ b/arch/x86/kernel/apic/apic_flat_64.c @@ -21,9 +21,7 @@ #include <asm/apic.h> #include <asm/ipi.h> -#ifdef CONFIG_ACPI -#include <acpi/acpi_bus.h> -#endif +#include <linux/acpi.h> static struct apic apic_physflat; static struct apic apic_flat; diff --git a/arch/x86/kernel/apic/io_apic.c b/arch/x86/kernel/apic/io_apic.c index e63a5bd2a78f..4d67a7531d45 100644 --- a/arch/x86/kernel/apic/io_apic.c +++ b/arch/x86/kernel/apic/io_apic.c @@ -37,9 +37,6 @@ #include <linux/kthread.h> #include <linux/jiffies.h> /* time_after() */ #include <linux/slab.h> -#ifdef CONFIG_ACPI -#include <acpi/acpi_bus.h> -#endif #include <linux/bootmem.h> #include <linux/dmar.h> #include <linux/hpet.h> diff --git a/arch/x86/pci/mmconfig-shared.c b/arch/x86/pci/mmconfig-shared.c index 082e88129712..248642f4bab7 100644 --- a/arch/x86/pci/mmconfig-shared.c +++ b/arch/x86/pci/mmconfig-shared.c @@ -12,7 +12,6 @@ #include <linux/pci.h> #include <linux/init.h> -#include <linux/acpi.h> #include <linux/sfi_acpi.h> #include <linux/bitmap.h> #include <linux/dmi.h> diff --git a/arch/x86/pci/mmconfig_32.c b/arch/x86/pci/mmconfig_32.c index 5c90975cdf0f..43984bc1665a 100644 --- a/arch/x86/pci/mmconfig_32.c +++ b/arch/x86/pci/mmconfig_32.c @@ -14,7 +14,6 @@ #include <linux/rcupdate.h> #include <asm/e820.h> #include <asm/pci_x86.h> -#include <acpi/acpi.h> /* Assume systems with more busses have correct MCFG */ #define mmcfg_virt_addr ((void __iomem *) fix_to_virt(FIX_PCIE_MCFG)) diff --git a/arch/x86/platform/olpc/olpc-xo15-sci.c b/arch/x86/platform/olpc/olpc-xo15-sci.c index 649a12befba9..08e350e757dc 100644 --- a/arch/x86/platform/olpc/olpc-xo15-sci.c +++ b/arch/x86/platform/olpc/olpc-xo15-sci.c @@ -15,8 +15,7 @@ #include <linux/power_supply.h> #include <linux/olpc-ec.h> -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> +#include <linux/acpi.h> #include <asm/olpc.h> #define DRV_NAME "olpc-xo15-sci" diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c index 3c2e4aa529c4..e7515aa43d6b 100644 --- a/drivers/acpi/ac.c +++ b/drivers/acpi/ac.c @@ -32,8 +32,7 @@ #include <linux/delay.h> #include <linux/platform_device.h> #include <linux/power_supply.h> -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> +#include <linux/acpi.h> #define PREFIX "ACPI: " diff --git a/drivers/acpi/acpi_extlog.c b/drivers/acpi/acpi_extlog.c index a6869e110ce5..94166680b3a3 100644 --- a/drivers/acpi/acpi_extlog.c +++ b/drivers/acpi/acpi_extlog.c @@ -9,7 +9,6 @@ #include <linux/module.h> #include <linux/acpi.h> -#include <acpi/acpi_bus.h> #include <linux/cper.h> #include <linux/ratelimit.h> #include <asm/cpu.h> @@ -20,11 +19,9 @@ #define EXT_ELOG_ENTRY_MASK GENMASK_ULL(51, 0) /* elog entry address mask */ #define EXTLOG_DSM_REV 0x0 -#define EXTLOG_FN_QUERY 0x0 #define EXTLOG_FN_ADDR 0x1 #define FLAG_OS_OPTIN BIT(0) -#define EXTLOG_QUERY_L1_EXIST BIT(1) #define ELOG_ENTRY_VALID (1ULL<<63) #define ELOG_ENTRY_LEN 0x1000 @@ -43,7 +40,7 @@ struct extlog_l1_head { u8 rev1[12]; }; -static u8 extlog_dsm_uuid[] = "663E35AF-CC10-41A4-88EA-5470AF055295"; +static u8 extlog_dsm_uuid[] __initdata = "663E35AF-CC10-41A4-88EA-5470AF055295"; /* L1 table related physical address */ static u64 elog_base; @@ -153,62 +150,27 @@ static int extlog_print(struct notifier_block *nb, unsigned long val, return NOTIFY_DONE; } -static int extlog_get_dsm(acpi_handle handle, int rev, int func, u64 *ret) +static bool __init extlog_get_l1addr(void) { - struct acpi_buffer buf = {ACPI_ALLOCATE_BUFFER, NULL}; - struct acpi_object_list input; - union acpi_object params[4], *obj; u8 uuid[16]; - int i; + acpi_handle handle; + union acpi_object *obj; acpi_str_to_uuid(extlog_dsm_uuid, uuid); - input.count = 4; - input.pointer = params; - params[0].type = ACPI_TYPE_BUFFER; - params[0].buffer.length = 16; - params[0].buffer.pointer = uuid; - params[1].type = ACPI_TYPE_INTEGER; - params[1].integer.value = rev; - params[2].type = ACPI_TYPE_INTEGER; - params[2].integer.value = func; - params[3].type = ACPI_TYPE_PACKAGE; - params[3].package.count = 0; - params[3].package.elements = NULL; - - if (ACPI_FAILURE(acpi_evaluate_object(handle, "_DSM", &input, &buf))) - return -1; - - *ret = 0; - obj = (union acpi_object *)buf.pointer; - if (obj->type == ACPI_TYPE_INTEGER) { - *ret = obj->integer.value; - } else if (obj->type == ACPI_TYPE_BUFFER) { - if (obj->buffer.length <= 8) { - for (i = 0; i < obj->buffer.length; i++) - *ret |= (obj->buffer.pointer[i] << (i * 8)); - } - } - kfree(buf.pointer); - - return 0; -} - -static bool extlog_get_l1addr(void) -{ - acpi_handle handle; - u64 ret; if (ACPI_FAILURE(acpi_get_handle(NULL, "\\_SB", &handle))) return false; - - if (extlog_get_dsm(handle, EXTLOG_DSM_REV, EXTLOG_FN_QUERY, &ret) || - !(ret & EXTLOG_QUERY_L1_EXIST)) + if (!acpi_check_dsm(handle, uuid, EXTLOG_DSM_REV, 1 << EXTLOG_FN_ADDR)) return false; - - if (extlog_get_dsm(handle, EXTLOG_DSM_REV, EXTLOG_FN_ADDR, &ret)) + obj = acpi_evaluate_dsm_typed(handle, uuid, EXTLOG_DSM_REV, + EXTLOG_FN_ADDR, NULL, ACPI_TYPE_INTEGER); + if (!obj) { return false; + } else { + l1_dirbase = obj->integer.value; + ACPI_FREE(obj); + } - l1_dirbase = ret; /* Spec says L1 directory must be 4K aligned, bail out if it isn't */ if (l1_dirbase & ((1 << 12) - 1)) { pr_warn(FW_BUG "L1 Directory is invalid at physical %llx\n", diff --git a/drivers/acpi/acpi_memhotplug.c b/drivers/acpi/acpi_memhotplug.c index 551dad712ffe..b67be85ff0fc 100644 --- a/drivers/acpi/acpi_memhotplug.c +++ b/drivers/acpi/acpi_memhotplug.c @@ -180,14 +180,14 @@ static unsigned long acpi_meminfo_end_pfn(struct acpi_memory_info *info) static int acpi_bind_memblk(struct memory_block *mem, void *arg) { - return acpi_bind_one(&mem->dev, (acpi_handle)arg); + return acpi_bind_one(&mem->dev, arg); } static int acpi_bind_memory_blocks(struct acpi_memory_info *info, - acpi_handle handle) + struct acpi_device *adev) { return walk_memory_range(acpi_meminfo_start_pfn(info), - acpi_meminfo_end_pfn(info), (void *)handle, + acpi_meminfo_end_pfn(info), adev, acpi_bind_memblk); } @@ -197,8 +197,7 @@ static int acpi_unbind_memblk(struct memory_block *mem, void *arg) return 0; } -static void acpi_unbind_memory_blocks(struct acpi_memory_info *info, - acpi_handle handle) +static void acpi_unbind_memory_blocks(struct acpi_memory_info *info) { walk_memory_range(acpi_meminfo_start_pfn(info), acpi_meminfo_end_pfn(info), NULL, acpi_unbind_memblk); @@ -242,9 +241,9 @@ static int acpi_memory_enable_device(struct acpi_memory_device *mem_device) if (result && result != -EEXIST) continue; - result = acpi_bind_memory_blocks(info, handle); + result = acpi_bind_memory_blocks(info, mem_device->device); if (result) { - acpi_unbind_memory_blocks(info, handle); + acpi_unbind_memory_blocks(info); return -ENODEV; } @@ -285,7 +284,7 @@ static void acpi_memory_remove_memory(struct acpi_memory_device *mem_device) if (nid == NUMA_NO_NODE) nid = memory_add_physaddr_to_nid(info->start_addr); - acpi_unbind_memory_blocks(info, handle); + acpi_unbind_memory_blocks(info); remove_memory(nid, info->start_addr, info->length); list_del(&info->list); kfree(info); @@ -361,7 +360,19 @@ static void acpi_memory_device_remove(struct acpi_device *device) acpi_memory_device_free(mem_device); } +static bool __initdata acpi_no_memhotplug; + void __init acpi_memory_hotplug_init(void) { + if (acpi_no_memhotplug) + return; + acpi_scan_add_handler_with_hotplug(&memory_device_handler, "memory"); } + +static int __init disable_acpi_memory_hotplug(char *str) +{ + acpi_no_memhotplug = true; + return 1; +} +__setup("acpi_no_memhotplug", disable_acpi_memory_hotplug); diff --git a/drivers/acpi/acpi_pad.c b/drivers/acpi/acpi_pad.c index fc6008fbce35..65610c0e7243 100644 --- a/drivers/acpi/acpi_pad.c +++ b/drivers/acpi/acpi_pad.c @@ -28,8 +28,7 @@ #include <linux/cpu.h> #include <linux/clockchips.h> #include <linux/slab.h> -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> +#include <linux/acpi.h> #include <asm/mwait.h> #define ACPI_PROCESSOR_AGGREGATOR_CLASS "acpi_pad" diff --git a/drivers/acpi/acpi_processor.c b/drivers/acpi/acpi_processor.c index 3c1d6b0c09a4..c9311be29a64 100644 --- a/drivers/acpi/acpi_processor.c +++ b/drivers/acpi/acpi_processor.c @@ -212,7 +212,7 @@ static int acpi_processor_get_info(struct acpi_device *device) union acpi_object object = { 0 }; struct acpi_buffer buffer = { sizeof(union acpi_object), &object }; struct acpi_processor *pr = acpi_driver_data(device); - int cpu_index, device_declaration = 0; + int apic_id, cpu_index, device_declaration = 0; acpi_status status = AE_OK; static int cpu0_initialized; unsigned long long value; @@ -258,18 +258,21 @@ static int acpi_processor_get_info(struct acpi_device *device) device_declaration = 1; pr->acpi_id = value; } - pr->apic_id = acpi_get_apicid(pr->handle, device_declaration, - pr->acpi_id); - cpu_index = acpi_map_cpuid(pr->apic_id, pr->acpi_id); - /* Handle UP system running SMP kernel, with no LAPIC in MADT */ - if (!cpu0_initialized && (cpu_index == -1) && - (num_online_cpus() == 1)) { - cpu_index = 0; + apic_id = acpi_get_apicid(pr->handle, device_declaration, pr->acpi_id); + if (apic_id < 0) { + acpi_handle_err(pr->handle, "failed to get CPU APIC ID.\n"); + return -ENODEV; } + pr->apic_id = apic_id; - cpu0_initialized = 1; - + cpu_index = acpi_map_cpuid(pr->apic_id, pr->acpi_id); + if (!cpu0_initialized) { + cpu0_initialized = 1; + /* Handle UP system running SMP kernel, with no LAPIC in MADT */ + if ((cpu_index == -1) && (num_online_cpus() == 1)) + cpu_index = 0; + } pr->id = cpu_index; /* @@ -282,6 +285,7 @@ static int acpi_processor_get_info(struct acpi_device *device) if (ret) return ret; } + /* * On some boxes several processors use the same processor bus id. * But they are located in different scope. For example: @@ -395,7 +399,7 @@ static int acpi_processor_add(struct acpi_device *device, goto err; } - result = acpi_bind_one(dev, pr->handle); + result = acpi_bind_one(dev, device); if (result) goto err; diff --git a/drivers/acpi/acpica/acdebug.h b/drivers/acpi/acpica/acdebug.h index a9fd0b872062..2bf3ca2b8a7a 100644 --- a/drivers/acpi/acpica/acdebug.h +++ b/drivers/acpi/acpica/acdebug.h @@ -113,7 +113,6 @@ void acpi_db_display_handlers(void); ACPI_HW_DEPENDENT_RETURN_VOID(void acpi_db_generate_gpe(char *gpe_arg, char *block_arg)) - ACPI_HW_DEPENDENT_RETURN_VOID(void acpi_db_generate_sci(void)) /* diff --git a/drivers/acpi/acpica/acevents.h b/drivers/acpi/acpica/acevents.h index 41abe552c7a3..0fb0adf435d6 100644 --- a/drivers/acpi/acpica/acevents.h +++ b/drivers/acpi/acpica/acevents.h @@ -71,9 +71,8 @@ acpi_status acpi_ev_init_global_lock_handler(void); ACPI_HW_DEPENDENT_RETURN_OK(acpi_status acpi_ev_acquire_global_lock(u16 timeout)) - ACPI_HW_DEPENDENT_RETURN_OK(acpi_status acpi_ev_release_global_lock(void)) - acpi_status acpi_ev_remove_global_lock_handler(void); +acpi_status acpi_ev_remove_global_lock_handler(void); /* * evgpe - Low-level GPE support @@ -133,7 +132,7 @@ acpi_status acpi_ev_gpe_initialize(void); ACPI_HW_DEPENDENT_RETURN_VOID(void acpi_ev_update_gpes(acpi_owner_id table_owner_id)) - acpi_status +acpi_status acpi_ev_match_gpe_method(acpi_handle obj_handle, u32 level, void *context, void **return_value); @@ -149,7 +148,9 @@ acpi_status acpi_ev_get_gpe_device(struct acpi_gpe_xrupt_info *gpe_xrupt_info, struct acpi_gpe_block_info *gpe_block, void *context); -struct acpi_gpe_xrupt_info *acpi_ev_get_gpe_xrupt_block(u32 interrupt_number); +acpi_status +acpi_ev_get_gpe_xrupt_block(u32 interrupt_number, + struct acpi_gpe_xrupt_info **gpe_xrupt_block); acpi_status acpi_ev_delete_gpe_xrupt(struct acpi_gpe_xrupt_info *gpe_xrupt); diff --git a/drivers/acpi/acpica/acglobal.h b/drivers/acpi/acpica/acglobal.h index e9f1fc7f99c7..24db8e153bf0 100644 --- a/drivers/acpi/acpica/acglobal.h +++ b/drivers/acpi/acpica/acglobal.h @@ -119,6 +119,24 @@ bool ACPI_INIT_GLOBAL(acpi_gbl_enable_aml_debug_object, FALSE); u8 ACPI_INIT_GLOBAL(acpi_gbl_copy_dsdt_locally, FALSE); /* + * Optionally ignore an XSDT if present and use the RSDT instead. + * Although the ACPI specification requires that an XSDT be used instead + * of the RSDT, the XSDT has been found to be corrupt or ill-formed on + * some machines. Default behavior is to use the XSDT if present. + */ +u8 ACPI_INIT_GLOBAL(acpi_gbl_do_not_use_xsdt, FALSE); + +/* + * Optionally use 32-bit FADT addresses if and when there is a conflict + * (address mismatch) between the 32-bit and 64-bit versions of the + * address. Although ACPICA adheres to the ACPI specification which + * requires the use of the corresponding 64-bit address if it is non-zero, + * some machines have been found to have a corrupted non-zero 64-bit + * address. Default is FALSE, do not favor the 32-bit addresses. + */ +u8 ACPI_INIT_GLOBAL(acpi_gbl_use32_bit_fadt_addresses, FALSE); + +/* * Optionally truncate I/O addresses to 16 bits. Provides compatibility * with other ACPI implementations. NOTE: During ACPICA initialization, * this value is set to TRUE if any Windows OSI strings have been @@ -484,6 +502,18 @@ ACPI_EXTERN u32 acpi_gbl_size_of_acpi_objects; /***************************************************************************** * + * Application globals + * + ****************************************************************************/ + +#ifdef ACPI_APPLICATION + +ACPI_FILE ACPI_INIT_GLOBAL(acpi_gbl_debug_file, NULL); + +#endif /* ACPI_APPLICATION */ + +/***************************************************************************** + * * Info/help support * ****************************************************************************/ diff --git a/drivers/acpi/acpica/aclocal.h b/drivers/acpi/acpica/aclocal.h index 53ed1a8ba4f0..d95ca5449ace 100644 --- a/drivers/acpi/acpica/aclocal.h +++ b/drivers/acpi/acpica/aclocal.h @@ -1038,15 +1038,16 @@ struct acpi_external_list { struct acpi_external_list *next; u32 value; u16 length; + u16 flags; u8 type; - u8 flags; - u8 resolved; - u8 emitted; }; /* Values for Flags field above */ -#define ACPI_IPATH_ALLOCATED 0x01 +#define ACPI_EXT_RESOLVED_REFERENCE 0x01 /* Object was resolved during cross ref */ +#define ACPI_EXT_ORIGIN_FROM_FILE 0x02 /* External came from a file */ +#define ACPI_EXT_INTERNAL_PATH_ALLOCATED 0x04 /* Deallocate internal path on completion */ +#define ACPI_EXT_EXTERNAL_EMITTED 0x08 /* External() statement has been emitted */ struct acpi_external_file { char *path; diff --git a/drivers/acpi/acpica/dsfield.c b/drivers/acpi/acpica/dsfield.c index 2d4c07322576..e7a57c554e84 100644 --- a/drivers/acpi/acpica/dsfield.c +++ b/drivers/acpi/acpica/dsfield.c @@ -105,7 +105,7 @@ acpi_ds_create_external_region(acpi_status lookup_status, * operation_region not found. Generate an External for it, and * insert the name into the namespace. */ - acpi_dm_add_to_external_list(op, path, ACPI_TYPE_REGION, 0); + acpi_dm_add_op_to_external_list(op, path, ACPI_TYPE_REGION, 0, 0); status = acpi_ns_lookup(walk_state->scope_info, path, ACPI_TYPE_REGION, ACPI_IMODE_LOAD_PASS1, ACPI_NS_SEARCH_PARENT, walk_state, node); diff --git a/drivers/acpi/acpica/dsutils.c b/drivers/acpi/acpica/dsutils.c index ade44e49deb4..d7f53fb2979a 100644 --- a/drivers/acpi/acpica/dsutils.c +++ b/drivers/acpi/acpica/dsutils.c @@ -727,27 +727,26 @@ acpi_ds_create_operands(struct acpi_walk_state *walk_state, index++; } - index--; + ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, + "NumOperands %d, ArgCount %d, Index %d\n", + walk_state->num_operands, arg_count, index)); - /* It is the appropriate order to get objects from the Result stack */ + /* Create the interpreter arguments, in reverse order */ + index--; for (i = 0; i < arg_count; i++) { arg = arguments[index]; - - /* Force the filling of the operand stack in inverse order */ - - walk_state->operand_index = (u8) index; + walk_state->operand_index = (u8)index; status = acpi_ds_create_operand(walk_state, arg, index); if (ACPI_FAILURE(status)) { goto cleanup; } - index--; - ACPI_DEBUG_PRINT((ACPI_DB_DISPATCH, - "Arg #%u (%p) done, Arg1=%p\n", index, arg, - first_arg)); + "Created Arg #%u (%p) %u args total\n", + index, arg, arg_count)); + index--; } return_ACPI_STATUS(status); diff --git a/drivers/acpi/acpica/dswload.c b/drivers/acpi/acpica/dswload.c index 95e681a36f9c..2dbe109727c8 100644 --- a/drivers/acpi/acpica/dswload.c +++ b/drivers/acpi/acpica/dswload.c @@ -181,8 +181,8 @@ acpi_ds_load1_begin_op(struct acpi_walk_state * walk_state, * Target of Scope() not found. Generate an External for it, and * insert the name into the namespace. */ - acpi_dm_add_to_external_list(op, path, ACPI_TYPE_DEVICE, - 0); + acpi_dm_add_op_to_external_list(op, path, + ACPI_TYPE_DEVICE, 0, 0); status = acpi_ns_lookup(walk_state->scope_info, path, object_type, ACPI_IMODE_LOAD_PASS1, diff --git a/drivers/acpi/acpica/evgpeblk.c b/drivers/acpi/acpica/evgpeblk.c index a9e76bc4ad97..a31e549e64cc 100644 --- a/drivers/acpi/acpica/evgpeblk.c +++ b/drivers/acpi/acpica/evgpeblk.c @@ -87,9 +87,9 @@ acpi_ev_install_gpe_block(struct acpi_gpe_block_info *gpe_block, return_ACPI_STATUS(status); } - gpe_xrupt_block = acpi_ev_get_gpe_xrupt_block(interrupt_number); - if (!gpe_xrupt_block) { - status = AE_NO_MEMORY; + status = + acpi_ev_get_gpe_xrupt_block(interrupt_number, &gpe_xrupt_block); + if (ACPI_FAILURE(status)) { goto unlock_and_exit; } @@ -112,7 +112,7 @@ acpi_ev_install_gpe_block(struct acpi_gpe_block_info *gpe_block, acpi_os_release_lock(acpi_gbl_gpe_lock, flags); unlock_and_exit: - status = acpi_ut_release_mutex(ACPI_MTX_EVENTS); + (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS); return_ACPI_STATUS(status); } diff --git a/drivers/acpi/acpica/evgpeutil.c b/drivers/acpi/acpica/evgpeutil.c index d3f5e1e2a2b1..4d764e847a08 100644 --- a/drivers/acpi/acpica/evgpeutil.c +++ b/drivers/acpi/acpica/evgpeutil.c @@ -197,8 +197,9 @@ acpi_ev_get_gpe_device(struct acpi_gpe_xrupt_info *gpe_xrupt_info, * FUNCTION: acpi_ev_get_gpe_xrupt_block * * PARAMETERS: interrupt_number - Interrupt for a GPE block + * gpe_xrupt_block - Where the block is returned * - * RETURN: A GPE interrupt block + * RETURN: Status * * DESCRIPTION: Get or Create a GPE interrupt block. There is one interrupt * block per unique interrupt level used for GPEs. Should be @@ -207,7 +208,9 @@ acpi_ev_get_gpe_device(struct acpi_gpe_xrupt_info *gpe_xrupt_info, * ******************************************************************************/ -struct acpi_gpe_xrupt_info *acpi_ev_get_gpe_xrupt_block(u32 interrupt_number) +acpi_status +acpi_ev_get_gpe_xrupt_block(u32 interrupt_number, + struct acpi_gpe_xrupt_info ** gpe_xrupt_block) { struct acpi_gpe_xrupt_info *next_gpe_xrupt; struct acpi_gpe_xrupt_info *gpe_xrupt; @@ -221,7 +224,8 @@ struct acpi_gpe_xrupt_info *acpi_ev_get_gpe_xrupt_block(u32 interrupt_number) next_gpe_xrupt = acpi_gbl_gpe_xrupt_list_head; while (next_gpe_xrupt) { if (next_gpe_xrupt->interrupt_number == interrupt_number) { - return_PTR(next_gpe_xrupt); + *gpe_xrupt_block = next_gpe_xrupt; + return_ACPI_STATUS(AE_OK); } next_gpe_xrupt = next_gpe_xrupt->next; @@ -231,7 +235,7 @@ struct acpi_gpe_xrupt_info *acpi_ev_get_gpe_xrupt_block(u32 interrupt_number) gpe_xrupt = ACPI_ALLOCATE_ZEROED(sizeof(struct acpi_gpe_xrupt_info)); if (!gpe_xrupt) { - return_PTR(NULL); + return_ACPI_STATUS(AE_NO_MEMORY); } gpe_xrupt->interrupt_number = interrupt_number; @@ -250,6 +254,7 @@ struct acpi_gpe_xrupt_info *acpi_ev_get_gpe_xrupt_block(u32 interrupt_number) } else { acpi_gbl_gpe_xrupt_list_head = gpe_xrupt; } + acpi_os_release_lock(acpi_gbl_gpe_lock, flags); /* Install new interrupt handler if not SCI_INT */ @@ -259,14 +264,15 @@ struct acpi_gpe_xrupt_info *acpi_ev_get_gpe_xrupt_block(u32 interrupt_number) acpi_ev_gpe_xrupt_handler, gpe_xrupt); if (ACPI_FAILURE(status)) { - ACPI_ERROR((AE_INFO, - "Could not install GPE interrupt handler at level 0x%X", - interrupt_number)); - return_PTR(NULL); + ACPI_EXCEPTION((AE_INFO, status, + "Could not install GPE interrupt handler at level 0x%X", + interrupt_number)); + return_ACPI_STATUS(status); } } - return_PTR(gpe_xrupt); + *gpe_xrupt_block = gpe_xrupt; + return_ACPI_STATUS(AE_OK); } /******************************************************************************* diff --git a/drivers/acpi/acpica/exresnte.c b/drivers/acpi/acpica/exresnte.c index acd34f599313..7ca6925a87ca 100644 --- a/drivers/acpi/acpica/exresnte.c +++ b/drivers/acpi/acpica/exresnte.c @@ -124,7 +124,8 @@ acpi_ex_resolve_node_to_value(struct acpi_namespace_node **object_ptr, } if (!source_desc) { - ACPI_ERROR((AE_INFO, "No object attached to node %p", node)); + ACPI_ERROR((AE_INFO, "No object attached to node [%4.4s] %p", + node->name.ascii, node)); return_ACPI_STATUS(AE_AML_NO_OPERAND); } diff --git a/drivers/acpi/acpica/nsxfeval.c b/drivers/acpi/acpica/nsxfeval.c index e973e311f856..1f0c28ba50df 100644 --- a/drivers/acpi/acpica/nsxfeval.c +++ b/drivers/acpi/acpica/nsxfeval.c @@ -84,7 +84,7 @@ acpi_evaluate_object_typed(acpi_handle handle, acpi_object_type return_type) { acpi_status status; - u8 must_free = FALSE; + u8 free_buffer_on_error = FALSE; ACPI_FUNCTION_TRACE(acpi_evaluate_object_typed); @@ -95,14 +95,13 @@ acpi_evaluate_object_typed(acpi_handle handle, } if (return_buffer->length == ACPI_ALLOCATE_BUFFER) { - must_free = TRUE; + free_buffer_on_error = TRUE; } /* Evaluate the object */ - status = - acpi_evaluate_object(handle, pathname, external_params, - return_buffer); + status = acpi_evaluate_object(handle, pathname, + external_params, return_buffer); if (ACPI_FAILURE(status)) { return_ACPI_STATUS(status); } @@ -135,11 +134,15 @@ acpi_evaluate_object_typed(acpi_handle handle, pointer)->type), acpi_ut_get_type_name(return_type))); - if (must_free) { - - /* Caller used ACPI_ALLOCATE_BUFFER, free the return buffer */ - - ACPI_FREE_BUFFER(*return_buffer); + if (free_buffer_on_error) { + /* + * Free a buffer created via ACPI_ALLOCATE_BUFFER. + * Note: We use acpi_os_free here because acpi_os_allocate was used + * to allocate the buffer. This purposefully bypasses the + * (optionally enabled) allocation tracking mechanism since we + * only want to track internal allocations. + */ + acpi_os_free(return_buffer->pointer); return_buffer->pointer = NULL; } diff --git a/drivers/acpi/acpica/psopinfo.c b/drivers/acpi/acpica/psopinfo.c index 9ba5301e5751..b0c9787dbe61 100644 --- a/drivers/acpi/acpica/psopinfo.c +++ b/drivers/acpi/acpica/psopinfo.c @@ -71,6 +71,10 @@ static const u8 acpi_gbl_argument_count[] = const struct acpi_opcode_info *acpi_ps_get_opcode_info(u16 opcode) { +#ifdef ACPI_DEBUG_OUTPUT + const char *opcode_name = "Unknown AML opcode"; +#endif + ACPI_FUNCTION_NAME(ps_get_opcode_info); /* @@ -92,11 +96,54 @@ const struct acpi_opcode_info *acpi_ps_get_opcode_info(u16 opcode) return (&acpi_gbl_aml_op_info [acpi_gbl_long_op_index[(u8)opcode]]); } +#if defined ACPI_ASL_COMPILER && defined ACPI_DEBUG_OUTPUT +#include "asldefine.h" + + switch (opcode) { + case AML_RAW_DATA_BYTE: + opcode_name = "-Raw Data Byte-"; + break; + + case AML_RAW_DATA_WORD: + opcode_name = "-Raw Data Word-"; + break; + + case AML_RAW_DATA_DWORD: + opcode_name = "-Raw Data Dword-"; + break; + + case AML_RAW_DATA_QWORD: + opcode_name = "-Raw Data Qword-"; + break; + + case AML_RAW_DATA_BUFFER: + opcode_name = "-Raw Data Buffer-"; + break; + + case AML_RAW_DATA_CHAIN: + opcode_name = "-Raw Data Buffer Chain-"; + break; + + case AML_PACKAGE_LENGTH: + opcode_name = "-Package Length-"; + break; + + case AML_UNASSIGNED_OPCODE: + opcode_name = "-Unassigned Opcode-"; + break; + + case AML_DEFAULT_ARG_OP: + opcode_name = "-Default Arg-"; + break; + + default: + break; + } +#endif /* Unknown AML opcode */ - ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "Unknown AML opcode [%4.4X]\n", opcode)); + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, "%s [%4.4X]\n", opcode_name, opcode)); return (&acpi_gbl_aml_op_info[_UNK]); } diff --git a/drivers/acpi/acpica/tbfadt.c b/drivers/acpi/acpica/tbfadt.c index 9d99f2189693..8f89263ac47e 100644 --- a/drivers/acpi/acpica/tbfadt.c +++ b/drivers/acpi/acpica/tbfadt.c @@ -56,10 +56,11 @@ acpi_tb_init_generic_address(struct acpi_generic_address *generic_address, static void acpi_tb_convert_fadt(void); -static void acpi_tb_validate_fadt(void); - static void acpi_tb_setup_fadt_registers(void); +static u64 +acpi_tb_select_address(char *register_name, u32 address32, u64 address64); + /* Table for conversion of FADT to common internal format and FADT validation */ typedef struct acpi_fadt_info { @@ -175,6 +176,7 @@ static struct acpi_fadt_pm_info fadt_pm_info_table[] = { * space_id - ACPI Space ID for this register * byte_width - Width of this register * address - Address of the register + * register_name - ASCII name of the ACPI register * * RETURN: None * @@ -220,6 +222,68 @@ acpi_tb_init_generic_address(struct acpi_generic_address *generic_address, /******************************************************************************* * + * FUNCTION: acpi_tb_select_address + * + * PARAMETERS: register_name - ASCII name of the ACPI register + * address32 - 32-bit address of the register + * address64 - 64-bit address of the register + * + * RETURN: The resolved 64-bit address + * + * DESCRIPTION: Select between 32-bit and 64-bit versions of addresses within + * the FADT. Used for the FACS and DSDT addresses. + * + * NOTES: + * + * Check for FACS and DSDT address mismatches. An address mismatch between + * the 32-bit and 64-bit address fields (FIRMWARE_CTRL/X_FIRMWARE_CTRL and + * DSDT/X_DSDT) could be a corrupted address field or it might indicate + * the presence of two FACS or two DSDT tables. + * + * November 2013: + * By default, as per the ACPICA specification, a valid 64-bit address is + * used regardless of the value of the 32-bit address. However, this + * behavior can be overridden via the acpi_gbl_use32_bit_fadt_addresses flag. + * + ******************************************************************************/ + +static u64 +acpi_tb_select_address(char *register_name, u32 address32, u64 address64) +{ + + if (!address64) { + + /* 64-bit address is zero, use 32-bit address */ + + return ((u64)address32); + } + + if (address32 && (address64 != (u64)address32)) { + + /* Address mismatch between 32-bit and 64-bit versions */ + + ACPI_BIOS_WARNING((AE_INFO, + "32/64X %s address mismatch in FADT: " + "0x%8.8X/0x%8.8X%8.8X, using %u-bit address", + register_name, address32, + ACPI_FORMAT_UINT64(address64), + acpi_gbl_use32_bit_fadt_addresses ? 32 : + 64)); + + /* 32-bit address override */ + + if (acpi_gbl_use32_bit_fadt_addresses) { + return ((u64)address32); + } + } + + /* Default is to use the 64-bit address */ + + return (address64); +} + +/******************************************************************************* + * * FUNCTION: acpi_tb_parse_fadt * * PARAMETERS: table_index - Index for the FADT @@ -331,10 +395,6 @@ void acpi_tb_create_local_fadt(struct acpi_table_header *table, u32 length) acpi_tb_convert_fadt(); - /* Validate FADT values now, before we make any changes */ - - acpi_tb_validate_fadt(); - /* Initialize the global ACPI register structures */ acpi_tb_setup_fadt_registers(); @@ -344,66 +404,55 @@ void acpi_tb_create_local_fadt(struct acpi_table_header *table, u32 length) * * FUNCTION: acpi_tb_convert_fadt * - * PARAMETERS: None, uses acpi_gbl_FADT + * PARAMETERS: none - acpi_gbl_FADT is used. * * RETURN: None * * DESCRIPTION: Converts all versions of the FADT to a common internal format. - * Expand 32-bit addresses to 64-bit as necessary. + * Expand 32-bit addresses to 64-bit as necessary. Also validate + * important fields within the FADT. * - * NOTE: acpi_gbl_FADT must be of size (struct acpi_table_fadt), - * and must contain a copy of the actual FADT. + * NOTE: acpi_gbl_FADT must be of size (struct acpi_table_fadt), and must + * contain a copy of the actual BIOS-provided FADT. * * Notes on 64-bit register addresses: * * After this FADT conversion, later ACPICA code will only use the 64-bit "X" * fields of the FADT for all ACPI register addresses. * - * The 64-bit "X" fields are optional extensions to the original 32-bit FADT + * The 64-bit X fields are optional extensions to the original 32-bit FADT * V1.0 fields. Even if they are present in the FADT, they are optional and * are unused if the BIOS sets them to zero. Therefore, we must copy/expand - * 32-bit V1.0 fields if the corresponding X field is zero. + * 32-bit V1.0 fields to the 64-bit X fields if the the 64-bit X field is + * originally zero. * - * For ACPI 1.0 FADTs, all 32-bit address fields are expanded to the - * corresponding "X" fields in the internal FADT. + * For ACPI 1.0 FADTs (that contain no 64-bit addresses), all 32-bit address + * fields are expanded to the corresponding 64-bit X fields in the internal + * common FADT. * * For ACPI 2.0+ FADTs, all valid (non-zero) 32-bit address fields are expanded - * to the corresponding 64-bit X fields. For compatibility with other ACPI - * implementations, we ignore the 64-bit field if the 32-bit field is valid, - * regardless of whether the host OS is 32-bit or 64-bit. + * to the corresponding 64-bit X fields, if the 64-bit field is originally + * zero. Adhering to the ACPI specification, we completely ignore the 32-bit + * field if the 64-bit field is valid, regardless of whether the host OS is + * 32-bit or 64-bit. + * + * Possible additional checks: + * (acpi_gbl_FADT.pm1_event_length >= 4) + * (acpi_gbl_FADT.pm1_control_length >= 2) + * (acpi_gbl_FADT.pm_timer_length >= 4) + * Gpe block lengths must be multiple of 2 * ******************************************************************************/ static void acpi_tb_convert_fadt(void) { + char *name; struct acpi_generic_address *address64; u32 address32; + u8 length; u32 i; /* - * Expand the 32-bit FACS and DSDT addresses to 64-bit as necessary. - * Later code will always use the X 64-bit field. Also, check for an - * address mismatch between the 32-bit and 64-bit address fields - * (FIRMWARE_CTRL/X_FIRMWARE_CTRL, DSDT/X_DSDT) which would indicate - * the presence of two FACS or two DSDT tables. - */ - if (!acpi_gbl_FADT.Xfacs) { - acpi_gbl_FADT.Xfacs = (u64) acpi_gbl_FADT.facs; - } else if (acpi_gbl_FADT.facs && - (acpi_gbl_FADT.Xfacs != (u64) acpi_gbl_FADT.facs)) { - ACPI_WARNING((AE_INFO, - "32/64 FACS address mismatch in FADT - two FACS tables!")); - } - - if (!acpi_gbl_FADT.Xdsdt) { - acpi_gbl_FADT.Xdsdt = (u64) acpi_gbl_FADT.dsdt; - } else if (acpi_gbl_FADT.dsdt && - (acpi_gbl_FADT.Xdsdt != (u64) acpi_gbl_FADT.dsdt)) { - ACPI_WARNING((AE_INFO, - "32/64 DSDT address mismatch in FADT - two DSDT tables!")); - } - - /* * For ACPI 1.0 FADTs (revision 1 or 2), ensure that reserved fields which * should be zero are indeed zero. This will workaround BIOSs that * inadvertently place values in these fields. @@ -421,119 +470,24 @@ static void acpi_tb_convert_fadt(void) acpi_gbl_FADT.boot_flags = 0; } - /* Update the local FADT table header length */ - - acpi_gbl_FADT.header.length = sizeof(struct acpi_table_fadt); - /* - * Expand the ACPI 1.0 32-bit addresses to the ACPI 2.0 64-bit "X" - * generic address structures as necessary. Later code will always use - * the 64-bit address structures. - * - * March 2009: - * We now always use the 32-bit address if it is valid (non-null). This - * is not in accordance with the ACPI specification which states that - * the 64-bit address supersedes the 32-bit version, but we do this for - * compatibility with other ACPI implementations. Most notably, in the - * case where both the 32 and 64 versions are non-null, we use the 32-bit - * version. This is the only address that is guaranteed to have been - * tested by the BIOS manufacturer. + * Now we can update the local FADT length to the length of the + * current FADT version as defined by the ACPI specification. + * Thus, we will have a common FADT internally. */ - for (i = 0; i < ACPI_FADT_INFO_ENTRIES; i++) { - address32 = *ACPI_ADD_PTR(u32, - &acpi_gbl_FADT, - fadt_info_table[i].address32); - - address64 = ACPI_ADD_PTR(struct acpi_generic_address, - &acpi_gbl_FADT, - fadt_info_table[i].address64); - - /* - * If both 32- and 64-bit addresses are valid (non-zero), - * they must match. - */ - if (address64->address && address32 && - (address64->address != (u64)address32)) { - ACPI_BIOS_ERROR((AE_INFO, - "32/64X address mismatch in FADT/%s: " - "0x%8.8X/0x%8.8X%8.8X, using 32", - fadt_info_table[i].name, address32, - ACPI_FORMAT_UINT64(address64-> - address))); - } - - /* Always use 32-bit address if it is valid (non-null) */ - - if (address32) { - /* - * Copy the 32-bit address to the 64-bit GAS structure. The - * Space ID is always I/O for 32-bit legacy address fields - */ - acpi_tb_init_generic_address(address64, - ACPI_ADR_SPACE_SYSTEM_IO, - *ACPI_ADD_PTR(u8, - &acpi_gbl_FADT, - fadt_info_table - [i].length), - (u64) address32, - fadt_info_table[i].name); - } - } -} - -/******************************************************************************* - * - * FUNCTION: acpi_tb_validate_fadt - * - * PARAMETERS: table - Pointer to the FADT to be validated - * - * RETURN: None - * - * DESCRIPTION: Validate various important fields within the FADT. If a problem - * is found, issue a message, but no status is returned. - * Used by both the table manager and the disassembler. - * - * Possible additional checks: - * (acpi_gbl_FADT.pm1_event_length >= 4) - * (acpi_gbl_FADT.pm1_control_length >= 2) - * (acpi_gbl_FADT.pm_timer_length >= 4) - * Gpe block lengths must be multiple of 2 - * - ******************************************************************************/ - -static void acpi_tb_validate_fadt(void) -{ - char *name; - struct acpi_generic_address *address64; - u8 length; - u32 i; + acpi_gbl_FADT.header.length = sizeof(struct acpi_table_fadt); /* - * Check for FACS and DSDT address mismatches. An address mismatch between - * the 32-bit and 64-bit address fields (FIRMWARE_CTRL/X_FIRMWARE_CTRL and - * DSDT/X_DSDT) would indicate the presence of two FACS or two DSDT tables. + * Expand the 32-bit FACS and DSDT addresses to 64-bit as necessary. + * Later ACPICA code will always use the X 64-bit field. */ - if (acpi_gbl_FADT.facs && - (acpi_gbl_FADT.Xfacs != (u64)acpi_gbl_FADT.facs)) { - ACPI_BIOS_WARNING((AE_INFO, - "32/64X FACS address mismatch in FADT - " - "0x%8.8X/0x%8.8X%8.8X, using 32", - acpi_gbl_FADT.facs, - ACPI_FORMAT_UINT64(acpi_gbl_FADT.Xfacs))); - - acpi_gbl_FADT.Xfacs = (u64)acpi_gbl_FADT.facs; - } - - if (acpi_gbl_FADT.dsdt && - (acpi_gbl_FADT.Xdsdt != (u64)acpi_gbl_FADT.dsdt)) { - ACPI_BIOS_WARNING((AE_INFO, - "32/64X DSDT address mismatch in FADT - " - "0x%8.8X/0x%8.8X%8.8X, using 32", - acpi_gbl_FADT.dsdt, - ACPI_FORMAT_UINT64(acpi_gbl_FADT.Xdsdt))); + acpi_gbl_FADT.Xfacs = acpi_tb_select_address("FACS", + acpi_gbl_FADT.facs, + acpi_gbl_FADT.Xfacs); - acpi_gbl_FADT.Xdsdt = (u64)acpi_gbl_FADT.dsdt; - } + acpi_gbl_FADT.Xdsdt = acpi_tb_select_address("DSDT", + acpi_gbl_FADT.dsdt, + acpi_gbl_FADT.Xdsdt); /* If Hardware Reduced flag is set, we are all done */ @@ -545,18 +499,95 @@ static void acpi_tb_validate_fadt(void) for (i = 0; i < ACPI_FADT_INFO_ENTRIES; i++) { /* - * Generate pointer to the 64-bit address, get the register - * length (width) and the register name + * Get the 32-bit and 64-bit addresses, as well as the register + * length and register name. */ + address32 = *ACPI_ADD_PTR(u32, + &acpi_gbl_FADT, + fadt_info_table[i].address32); + address64 = ACPI_ADD_PTR(struct acpi_generic_address, &acpi_gbl_FADT, fadt_info_table[i].address64); - length = - *ACPI_ADD_PTR(u8, &acpi_gbl_FADT, - fadt_info_table[i].length); + + length = *ACPI_ADD_PTR(u8, + &acpi_gbl_FADT, + fadt_info_table[i].length); + name = fadt_info_table[i].name; /* + * Expand the ACPI 1.0 32-bit addresses to the ACPI 2.0 64-bit "X" + * generic address structures as necessary. Later code will always use + * the 64-bit address structures. + * + * November 2013: + * Now always use the 64-bit address if it is valid (non-zero), in + * accordance with the ACPI specification which states that a 64-bit + * address supersedes the 32-bit version. This behavior can be + * overridden by the acpi_gbl_use32_bit_fadt_addresses flag. + * + * During 64-bit address construction and verification, + * these cases are handled: + * + * Address32 zero, Address64 [don't care] - Use Address64 + * + * Address32 non-zero, Address64 zero - Copy/use Address32 + * Address32 non-zero == Address64 non-zero - Use Address64 + * Address32 non-zero != Address64 non-zero - Warning, use Address64 + * + * Override: if acpi_gbl_use32_bit_fadt_addresses is TRUE, and: + * Address32 non-zero != Address64 non-zero - Warning, copy/use Address32 + * + * Note: space_id is always I/O for 32-bit legacy address fields + */ + if (address32) { + if (!address64->address) { + + /* 64-bit address is zero, use 32-bit address */ + + acpi_tb_init_generic_address(address64, + ACPI_ADR_SPACE_SYSTEM_IO, + *ACPI_ADD_PTR(u8, + &acpi_gbl_FADT, + fadt_info_table + [i]. + length), + (u64)address32, + name); + } else if (address64->address != (u64)address32) { + + /* Address mismatch */ + + ACPI_BIOS_WARNING((AE_INFO, + "32/64X address mismatch in FADT/%s: " + "0x%8.8X/0x%8.8X%8.8X, using %u-bit address", + name, address32, + ACPI_FORMAT_UINT64 + (address64->address), + acpi_gbl_use32_bit_fadt_addresses + ? 32 : 64)); + + if (acpi_gbl_use32_bit_fadt_addresses) { + + /* 32-bit address override */ + + acpi_tb_init_generic_address(address64, + ACPI_ADR_SPACE_SYSTEM_IO, + *ACPI_ADD_PTR + (u8, + &acpi_gbl_FADT, + fadt_info_table + [i]. + length), + (u64) + address32, + name); + } + } + } + + /* * For each extended field, check for length mismatch between the * legacy length field and the corresponding 64-bit X length field. * Note: If the legacy length field is > 0xFF bits, ignore this diff --git a/drivers/acpi/acpica/tbutils.c b/drivers/acpi/acpica/tbutils.c index 3d6bb83aa7e7..6412d3c301cb 100644 --- a/drivers/acpi/acpica/tbutils.c +++ b/drivers/acpi/acpica/tbutils.c @@ -49,69 +49,11 @@ ACPI_MODULE_NAME("tbutils") /* Local prototypes */ +static acpi_status acpi_tb_validate_xsdt(acpi_physical_address address); + static acpi_physical_address acpi_tb_get_root_table_entry(u8 *table_entry, u32 table_entry_size); -/******************************************************************************* - * - * FUNCTION: acpi_tb_check_xsdt - * - * PARAMETERS: address - Pointer to the XSDT - * - * RETURN: status - * AE_OK - XSDT is okay - * AE_NO_MEMORY - can't map XSDT - * AE_INVALID_TABLE_LENGTH - invalid table length - * AE_NULL_ENTRY - XSDT has NULL entry - * - * DESCRIPTION: validate XSDT -******************************************************************************/ - -static acpi_status -acpi_tb_check_xsdt(acpi_physical_address address) -{ - struct acpi_table_header *table; - u32 length; - u64 xsdt_entry_address; - u8 *table_entry; - u32 table_count; - int i; - - table = acpi_os_map_memory(address, sizeof(struct acpi_table_header)); - if (!table) - return AE_NO_MEMORY; - - length = table->length; - acpi_os_unmap_memory(table, sizeof(struct acpi_table_header)); - if (length < sizeof(struct acpi_table_header)) - return AE_INVALID_TABLE_LENGTH; - - table = acpi_os_map_memory(address, length); - if (!table) - return AE_NO_MEMORY; - - /* Calculate the number of tables described in XSDT */ - table_count = - (u32) ((table->length - - sizeof(struct acpi_table_header)) / sizeof(u64)); - table_entry = - ACPI_CAST_PTR(u8, table) + sizeof(struct acpi_table_header); - for (i = 0; i < table_count; i++) { - ACPI_MOVE_64_TO_64(&xsdt_entry_address, table_entry); - if (!xsdt_entry_address) { - /* XSDT has NULL entry */ - break; - } - table_entry += sizeof(u64); - } - acpi_os_unmap_memory(table, length); - - if (i < table_count) - return AE_NULL_ENTRY; - else - return AE_OK; -} - #if (!ACPI_REDUCED_HARDWARE) /******************************************************************************* * @@ -383,7 +325,7 @@ acpi_tb_get_root_table_entry(u8 *table_entry, u32 table_entry_size) * Get the table physical address (32-bit for RSDT, 64-bit for XSDT): * Note: Addresses are 32-bit aligned (not 64) in both RSDT and XSDT */ - if (table_entry_size == sizeof(u32)) { + if (table_entry_size == ACPI_RSDT_ENTRY_SIZE) { /* * 32-bit platform, RSDT: Return 32-bit table entry * 64-bit platform, RSDT: Expand 32-bit to 64-bit and return @@ -415,6 +357,87 @@ acpi_tb_get_root_table_entry(u8 *table_entry, u32 table_entry_size) /******************************************************************************* * + * FUNCTION: acpi_tb_validate_xsdt + * + * PARAMETERS: address - Physical address of the XSDT (from RSDP) + * + * RETURN: Status. AE_OK if the table appears to be valid. + * + * DESCRIPTION: Validate an XSDT to ensure that it is of minimum size and does + * not contain any NULL entries. A problem that is seen in the + * field is that the XSDT exists, but is actually useless because + * of one or more (or all) NULL entries. + * + ******************************************************************************/ + +static acpi_status acpi_tb_validate_xsdt(acpi_physical_address xsdt_address) +{ + struct acpi_table_header *table; + u8 *next_entry; + acpi_physical_address address; + u32 length; + u32 entry_count; + acpi_status status; + u32 i; + + /* Get the XSDT length */ + + table = + acpi_os_map_memory(xsdt_address, sizeof(struct acpi_table_header)); + if (!table) { + return (AE_NO_MEMORY); + } + + length = table->length; + acpi_os_unmap_memory(table, sizeof(struct acpi_table_header)); + + /* + * Minimum XSDT length is the size of the standard ACPI header + * plus one physical address entry + */ + if (length < (sizeof(struct acpi_table_header) + ACPI_XSDT_ENTRY_SIZE)) { + return (AE_INVALID_TABLE_LENGTH); + } + + /* Map the entire XSDT */ + + table = acpi_os_map_memory(xsdt_address, length); + if (!table) { + return (AE_NO_MEMORY); + } + + /* Get the number of entries and pointer to first entry */ + + status = AE_OK; + next_entry = ACPI_ADD_PTR(u8, table, sizeof(struct acpi_table_header)); + entry_count = (u32)((table->length - sizeof(struct acpi_table_header)) / + ACPI_XSDT_ENTRY_SIZE); + + /* Validate each entry (physical address) within the XSDT */ + + for (i = 0; i < entry_count; i++) { + address = + acpi_tb_get_root_table_entry(next_entry, + ACPI_XSDT_ENTRY_SIZE); + if (!address) { + + /* Detected a NULL entry, XSDT is invalid */ + + status = AE_NULL_ENTRY; + break; + } + + next_entry += ACPI_XSDT_ENTRY_SIZE; + } + + /* Unmap table */ + + acpi_os_unmap_memory(table, length); + return (status); +} + +/******************************************************************************* + * * FUNCTION: acpi_tb_parse_root_table * * PARAMETERS: rsdp - Pointer to the RSDP @@ -438,16 +461,14 @@ acpi_status __init acpi_tb_parse_root_table(acpi_physical_address rsdp_address) u32 table_count; struct acpi_table_header *table; acpi_physical_address address; - acpi_physical_address uninitialized_var(rsdt_address); u32 length; u8 *table_entry; acpi_status status; ACPI_FUNCTION_TRACE(tb_parse_root_table); - /* - * Map the entire RSDP and extract the address of the RSDT or XSDT - */ + /* Map the entire RSDP and extract the address of the RSDT or XSDT */ + rsdp = acpi_os_map_memory(rsdp_address, sizeof(struct acpi_table_rsdp)); if (!rsdp) { return_ACPI_STATUS(AE_NO_MEMORY); @@ -457,24 +478,22 @@ acpi_status __init acpi_tb_parse_root_table(acpi_physical_address rsdp_address) ACPI_CAST_PTR(struct acpi_table_header, rsdp)); - /* Differentiate between RSDT and XSDT root tables */ + /* Use XSDT if present and not overridden. Otherwise, use RSDT */ - if (rsdp->revision > 1 && rsdp->xsdt_physical_address - && !acpi_rsdt_forced) { + if ((rsdp->revision > 1) && + rsdp->xsdt_physical_address && !acpi_gbl_do_not_use_xsdt) { /* - * Root table is an XSDT (64-bit physical addresses). We must use the - * XSDT if the revision is > 1 and the XSDT pointer is present, as per - * the ACPI specification. + * RSDP contains an XSDT (64-bit physical addresses). We must use + * the XSDT if the revision is > 1 and the XSDT pointer is present, + * as per the ACPI specification. */ address = (acpi_physical_address) rsdp->xsdt_physical_address; - table_entry_size = sizeof(u64); - rsdt_address = (acpi_physical_address) - rsdp->rsdt_physical_address; + table_entry_size = ACPI_XSDT_ENTRY_SIZE; } else { /* Root table is an RSDT (32-bit physical addresses) */ address = (acpi_physical_address) rsdp->rsdt_physical_address; - table_entry_size = sizeof(u32); + table_entry_size = ACPI_RSDT_ENTRY_SIZE; } /* @@ -483,15 +502,25 @@ acpi_status __init acpi_tb_parse_root_table(acpi_physical_address rsdp_address) */ acpi_os_unmap_memory(rsdp, sizeof(struct acpi_table_rsdp)); - if (table_entry_size == sizeof(u64)) { - if (acpi_tb_check_xsdt(address) == AE_NULL_ENTRY) { - /* XSDT has NULL entry, RSDT is used */ - address = rsdt_address; - table_entry_size = sizeof(u32); - ACPI_WARNING((AE_INFO, "BIOS XSDT has NULL entry, " - "using RSDT")); + /* + * If it is present and used, validate the XSDT for access/size + * and ensure that all table entries are at least non-NULL + */ + if (table_entry_size == ACPI_XSDT_ENTRY_SIZE) { + status = acpi_tb_validate_xsdt(address); + if (ACPI_FAILURE(status)) { + ACPI_BIOS_WARNING((AE_INFO, + "XSDT is invalid (%s), using RSDT", + acpi_format_exception(status))); + + /* Fall back to the RSDT */ + + address = + (acpi_physical_address) rsdp->rsdt_physical_address; + table_entry_size = ACPI_RSDT_ENTRY_SIZE; } } + /* Map the RSDT/XSDT table header to get the full table length */ table = acpi_os_map_memory(address, sizeof(struct acpi_table_header)); @@ -501,12 +530,14 @@ acpi_status __init acpi_tb_parse_root_table(acpi_physical_address rsdp_address) acpi_tb_print_table_header(address, table); - /* Get the length of the full table, verify length and map entire table */ - + /* + * Validate length of the table, and map entire table. + * Minimum length table must contain at least one entry. + */ length = table->length; acpi_os_unmap_memory(table, sizeof(struct acpi_table_header)); - if (length < sizeof(struct acpi_table_header)) { + if (length < (sizeof(struct acpi_table_header) + table_entry_size)) { ACPI_BIOS_ERROR((AE_INFO, "Invalid table length 0x%X in RSDT/XSDT", length)); @@ -526,22 +557,21 @@ acpi_status __init acpi_tb_parse_root_table(acpi_physical_address rsdp_address) return_ACPI_STATUS(status); } - /* Calculate the number of tables described in the root table */ + /* Get the number of entries and pointer to first entry */ table_count = (u32)((table->length - sizeof(struct acpi_table_header)) / table_entry_size); + table_entry = ACPI_ADD_PTR(u8, table, sizeof(struct acpi_table_header)); + /* * First two entries in the table array are reserved for the DSDT * and FACS, which are not actually present in the RSDT/XSDT - they * come from the FADT */ - table_entry = - ACPI_CAST_PTR(u8, table) + sizeof(struct acpi_table_header); acpi_gbl_root_table_list.current_table_count = 2; - /* - * Initialize the root table array from the RSDT/XSDT - */ + /* Initialize the root table array from the RSDT/XSDT */ + for (i = 0; i < table_count; i++) { if (acpi_gbl_root_table_list.current_table_count >= acpi_gbl_root_table_list.max_table_count) { @@ -584,7 +614,7 @@ acpi_status __init acpi_tb_parse_root_table(acpi_physical_address rsdp_address) acpi_tb_install_table(acpi_gbl_root_table_list.tables[i]. address, NULL, i); - /* Special case for FADT - get the DSDT and FACS */ + /* Special case for FADT - validate it then get the DSDT and FACS */ if (ACPI_COMPARE_NAME (&acpi_gbl_root_table_list.tables[i].signature, diff --git a/drivers/acpi/acpica/utaddress.c b/drivers/acpi/acpica/utaddress.c index e0a2e2779c2e..2c2b6ae5dfc4 100644 --- a/drivers/acpi/acpica/utaddress.c +++ b/drivers/acpi/acpica/utaddress.c @@ -224,10 +224,11 @@ acpi_ut_check_address_range(acpi_adr_space_type space_id, while (range_info) { /* - * Check if the requested Address/Length overlaps this address_range. - * Four cases to consider: + * Check if the requested address/length overlaps this + * address range. There are four cases to consider: * - * 1) Input address/length is contained completely in the address range + * 1) Input address/length is contained completely in the + * address range * 2) Input address/length overlaps range at the range start * 3) Input address/length overlaps range at the range end * 4) Input address/length completely encompasses the range @@ -244,11 +245,17 @@ acpi_ut_check_address_range(acpi_adr_space_type space_id, region_node); ACPI_WARNING((AE_INFO, - "0x%p-0x%p %s conflicts with Region %s %d", + "%s range 0x%p-0x%p conflicts with OpRegion 0x%p-0x%p (%s)", + acpi_ut_get_region_name(space_id), ACPI_CAST_PTR(void, address), ACPI_CAST_PTR(void, end_address), - acpi_ut_get_region_name(space_id), - pathname, overlap_count)); + ACPI_CAST_PTR(void, + range_info-> + start_address), + ACPI_CAST_PTR(void, + range_info-> + end_address), + pathname)); ACPI_FREE(pathname); } } diff --git a/drivers/acpi/acpica/utalloc.c b/drivers/acpi/acpica/utalloc.c index 814267f52715..1851762fc5b5 100644 --- a/drivers/acpi/acpica/utalloc.c +++ b/drivers/acpi/acpica/utalloc.c @@ -302,9 +302,13 @@ acpi_ut_initialize_buffer(struct acpi_buffer * buffer, return (AE_BUFFER_OVERFLOW); case ACPI_ALLOCATE_BUFFER: - - /* Allocate a new buffer */ - + /* + * Allocate a new buffer. We directectly call acpi_os_allocate here to + * purposefully bypass the (optionally enabled) internal allocation + * tracking mechanism since we only want to track internal + * allocations. Note: The caller should use acpi_os_free to free this + * buffer created via ACPI_ALLOCATE_BUFFER. + */ buffer->pointer = acpi_os_allocate(required_length); break; diff --git a/drivers/acpi/acpica/utcache.c b/drivers/acpi/acpica/utcache.c index 366bfec4b770..cacd2fd9e665 100644 --- a/drivers/acpi/acpica/utcache.c +++ b/drivers/acpi/acpica/utcache.c @@ -248,12 +248,12 @@ void *acpi_os_acquire_object(struct acpi_memory_list *cache) ACPI_FUNCTION_NAME(os_acquire_object); if (!cache) { - return (NULL); + return_PTR(NULL); } status = acpi_ut_acquire_mutex(ACPI_MTX_CACHES); if (ACPI_FAILURE(status)) { - return (NULL); + return_PTR(NULL); } ACPI_MEM_TRACKING(cache->requests++); @@ -276,7 +276,7 @@ void *acpi_os_acquire_object(struct acpi_memory_list *cache) status = acpi_ut_release_mutex(ACPI_MTX_CACHES); if (ACPI_FAILURE(status)) { - return (NULL); + return_PTR(NULL); } /* Clear (zero) the previously used Object */ @@ -299,15 +299,15 @@ void *acpi_os_acquire_object(struct acpi_memory_list *cache) status = acpi_ut_release_mutex(ACPI_MTX_CACHES); if (ACPI_FAILURE(status)) { - return (NULL); + return_PTR(NULL); } object = ACPI_ALLOCATE_ZEROED(cache->object_size); if (!object) { - return (NULL); + return_PTR(NULL); } } - return (object); + return_PTR(object); } #endif /* ACPI_USE_LOCAL_CACHE */ diff --git a/drivers/acpi/acpica/utdebug.c b/drivers/acpi/acpica/utdebug.c index 03ae8affe48f..d971c8631263 100644 --- a/drivers/acpi/acpica/utdebug.c +++ b/drivers/acpi/acpica/utdebug.c @@ -194,9 +194,9 @@ acpi_debug_print(u32 requested_debug_level, */ acpi_os_printf("%9s-%04ld ", module_name, line_number); -#ifdef ACPI_EXEC_APP +#ifdef ACPI_APPLICATION /* - * For acpi_exec only, emit the thread ID and nesting level. + * For acpi_exec/iASL only, emit the thread ID and nesting level. * Note: nesting level is really only useful during a single-thread * execution. Otherwise, multiple threads will keep resetting the * level. diff --git a/drivers/acpi/acpica/utglobal.c b/drivers/acpi/acpica/utglobal.c index 81f9a9584451..030cb0dc673c 100644 --- a/drivers/acpi/acpica/utglobal.c +++ b/drivers/acpi/acpica/utglobal.c @@ -388,11 +388,7 @@ acpi_status acpi_ut_init_globals(void) /* Public globals */ ACPI_EXPORT_SYMBOL(acpi_gbl_FADT) - ACPI_EXPORT_SYMBOL(acpi_dbg_level) - ACPI_EXPORT_SYMBOL(acpi_dbg_layer) - ACPI_EXPORT_SYMBOL(acpi_gpe_count) - ACPI_EXPORT_SYMBOL(acpi_current_gpe_count) diff --git a/drivers/acpi/acpica/utxfinit.c b/drivers/acpi/acpica/utxfinit.c index 75efea0539c1..246ef68681f4 100644 --- a/drivers/acpi/acpica/utxfinit.c +++ b/drivers/acpi/acpica/utxfinit.c @@ -122,8 +122,16 @@ acpi_status __init acpi_initialize_subsystem(void) /* If configured, initialize the AML debugger */ - ACPI_DEBUGGER_EXEC(status = acpi_db_initialize()); - return_ACPI_STATUS(status); +#ifdef ACPI_DEBUGGER + status = acpi_db_initialize(); + if (ACPI_FAILURE(status)) { + ACPI_EXCEPTION((AE_INFO, status, + "During Debugger initialization")); + return_ACPI_STATUS(status); + } +#endif + + return_ACPI_STATUS(AE_OK); } ACPI_EXPORT_SYMBOL_INIT(acpi_initialize_subsystem) diff --git a/drivers/acpi/apei/apei-base.c b/drivers/acpi/apei/apei-base.c index 6d2c49b86b7f..0760b75f79cc 100644 --- a/drivers/acpi/apei/apei-base.c +++ b/drivers/acpi/apei/apei-base.c @@ -34,7 +34,6 @@ #include <linux/module.h> #include <linux/init.h> #include <linux/acpi.h> -#include <linux/acpi_io.h> #include <linux/slab.h> #include <linux/io.h> #include <linux/kref.h> diff --git a/drivers/acpi/apei/apei-internal.h b/drivers/acpi/apei/apei-internal.h index 21ba34a73883..e5bcd919d4e6 100644 --- a/drivers/acpi/apei/apei-internal.h +++ b/drivers/acpi/apei/apei-internal.h @@ -8,7 +8,6 @@ #include <linux/cper.h> #include <linux/acpi.h> -#include <linux/acpi_io.h> struct apei_exec_context; diff --git a/drivers/acpi/apei/einj.c b/drivers/acpi/apei/einj.c index fb57d03e698b..ca0c6d7ec0d4 100644 --- a/drivers/acpi/apei/einj.c +++ b/drivers/acpi/apei/einj.c @@ -33,7 +33,6 @@ #include <linux/nmi.h> #include <linux/delay.h> #include <linux/mm.h> -#include <acpi/acpi.h> #include "apei-internal.h" diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c index a30bc313787b..694c486a12ed 100644 --- a/drivers/acpi/apei/ghes.c +++ b/drivers/acpi/apei/ghes.c @@ -33,7 +33,6 @@ #include <linux/module.h> #include <linux/init.h> #include <linux/acpi.h> -#include <linux/acpi_io.h> #include <linux/io.h> #include <linux/interrupt.h> #include <linux/timer.h> diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c index 5876a49dfd38..470e7542bf31 100644 --- a/drivers/acpi/battery.c +++ b/drivers/acpi/battery.c @@ -36,8 +36,7 @@ #include <linux/suspend.h> #include <asm/unaligned.h> -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> +#include <linux/acpi.h> #include <linux/power_supply.h> #define PREFIX "ACPI: " diff --git a/drivers/acpi/blacklist.c b/drivers/acpi/blacklist.c index 078c4f7fe2dd..10e4964d051a 100644 --- a/drivers/acpi/blacklist.c +++ b/drivers/acpi/blacklist.c @@ -30,7 +30,6 @@ #include <linux/kernel.h> #include <linux/init.h> #include <linux/acpi.h> -#include <acpi/acpi_bus.h> #include <linux/dmi.h> #include "internal.h" @@ -323,6 +322,56 @@ static struct dmi_system_id acpi_osi_dmi_table[] __initdata = { DMI_MATCH(DMI_PRODUCT_VERSION, "2349D15"), }, }, + { + .callback = dmi_disable_osi_win8, + .ident = "HP ProBook 2013 models", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), + DMI_MATCH(DMI_PRODUCT_NAME, "HP ProBook "), + DMI_MATCH(DMI_PRODUCT_NAME, " G1"), + }, + }, + { + .callback = dmi_disable_osi_win8, + .ident = "HP EliteBook 2013 models", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), + DMI_MATCH(DMI_PRODUCT_NAME, "HP EliteBook "), + DMI_MATCH(DMI_PRODUCT_NAME, " G1"), + }, + }, + { + .callback = dmi_disable_osi_win8, + .ident = "HP ZBook 14", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), + DMI_MATCH(DMI_PRODUCT_NAME, "HP ZBook 14"), + }, + }, + { + .callback = dmi_disable_osi_win8, + .ident = "HP ZBook 15", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), + DMI_MATCH(DMI_PRODUCT_NAME, "HP ZBook 15"), + }, + }, + { + .callback = dmi_disable_osi_win8, + .ident = "HP ZBook 17", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), + DMI_MATCH(DMI_PRODUCT_NAME, "HP ZBook 17"), + }, + }, + { + .callback = dmi_disable_osi_win8, + .ident = "HP EliteBook 8780w", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), + DMI_MATCH(DMI_PRODUCT_NAME, "HP EliteBook 8780w"), + }, + }, /* * BIOS invocation of _OSI(Linux) is almost always a BIOS bug. diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c index 0710004055c8..384da5ab5955 100644 --- a/drivers/acpi/bus.c +++ b/drivers/acpi/bus.c @@ -37,8 +37,6 @@ #include <asm/mpspec.h> #endif #include <linux/pci.h> -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> #include <acpi/apei.h> #include <linux/dmi.h> #include <linux/suspend.h> @@ -52,9 +50,6 @@ struct acpi_device *acpi_root; struct proc_dir_entry *acpi_root_dir; EXPORT_SYMBOL(acpi_root_dir); -#define STRUCT_TO_INT(s) (*((int*)&s)) - - #ifdef CONFIG_X86 static int set_copy_dsdt(const struct dmi_system_id *id) { @@ -115,18 +110,16 @@ int acpi_bus_get_status(struct acpi_device *device) if (ACPI_FAILURE(status)) return -ENODEV; - STRUCT_TO_INT(device->status) = (int) sta; + acpi_set_device_status(device, sta); if (device->status.functional && !device->status.present) { ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device [%s] status [%08x]: " "functional but not present;\n", - device->pnp.bus_id, - (u32) STRUCT_TO_INT(device->status))); + device->pnp.bus_id, (u32)sta)); } ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device [%s] status [%08x]\n", - device->pnp.bus_id, - (u32) STRUCT_TO_INT(device->status))); + device->pnp.bus_id, (u32)sta)); return 0; } EXPORT_SYMBOL(acpi_bus_get_status); @@ -339,58 +332,6 @@ static void acpi_bus_osc_support(void) Notification Handling -------------------------------------------------------------------------- */ -static void acpi_bus_check_device(acpi_handle handle) -{ - struct acpi_device *device; - acpi_status status; - struct acpi_device_status old_status; - - if (acpi_bus_get_device(handle, &device)) - return; - if (!device) - return; - - old_status = device->status; - - /* - * Make sure this device's parent is present before we go about - * messing with the device. - */ - if (device->parent && !device->parent->status.present) { - device->status = device->parent->status; - return; - } - - status = acpi_bus_get_status(device); - if (ACPI_FAILURE(status)) - return; - - if (STRUCT_TO_INT(old_status) == STRUCT_TO_INT(device->status)) - return; - - /* - * Device Insertion/Removal - */ - if ((device->status.present) && !(old_status.present)) { - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device insertion detected\n")); - /* TBD: Handle device insertion */ - } else if (!(device->status.present) && (old_status.present)) { - ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device removal detected\n")); - /* TBD: Handle device removal */ - } -} - -static void acpi_bus_check_scope(acpi_handle handle) -{ - /* Status Change? */ - acpi_bus_check_device(handle); - - /* - * TBD: Enumerate child devices within this device's scope and - * run acpi_bus_check_device()'s on them. - */ -} - /** * acpi_bus_notify * --------------- @@ -407,19 +348,11 @@ static void acpi_bus_notify(acpi_handle handle, u32 type, void *data) switch (type) { case ACPI_NOTIFY_BUS_CHECK: - acpi_bus_check_scope(handle); - /* - * TBD: We'll need to outsource certain events to non-ACPI - * drivers via the device manager (device.c). - */ + /* TBD */ break; case ACPI_NOTIFY_DEVICE_CHECK: - acpi_bus_check_device(handle); - /* - * TBD: We'll need to outsource certain events to non-ACPI - * drivers via the device manager (device.c). - */ + /* TBD */ break; case ACPI_NOTIFY_DEVICE_WAKE: diff --git a/drivers/acpi/button.c b/drivers/acpi/button.c index c971929d75c2..11c11f6b8fa1 100644 --- a/drivers/acpi/button.c +++ b/drivers/acpi/button.c @@ -31,8 +31,7 @@ #include <linux/seq_file.h> #include <linux/input.h> #include <linux/slab.h> -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> +#include <linux/acpi.h> #include <acpi/button.h> #define PREFIX "ACPI: " @@ -101,7 +100,6 @@ struct acpi_button { struct input_dev *input; char phys[32]; /* for input device */ unsigned long pushed; - bool wakeup_enabled; }; static BLOCKING_NOTIFIER_HEAD(acpi_lid_notifier); @@ -407,16 +405,6 @@ static int acpi_button_add(struct acpi_device *device) lid_device = device; } - if (device->wakeup.flags.valid) { - /* Button's GPE is run-wake GPE */ - acpi_enable_gpe(device->wakeup.gpe_device, - device->wakeup.gpe_number); - if (!device_may_wakeup(&device->dev)) { - device_set_wakeup_enable(&device->dev, true); - button->wakeup_enabled = true; - } - } - printk(KERN_INFO PREFIX "%s [%s]\n", name, acpi_device_bid(device)); return 0; @@ -433,13 +421,6 @@ static int acpi_button_remove(struct acpi_device *device) { struct acpi_button *button = acpi_driver_data(device); - if (device->wakeup.flags.valid) { - acpi_disable_gpe(device->wakeup.gpe_device, - device->wakeup.gpe_number); - if (button->wakeup_enabled) - device_set_wakeup_enable(&device->dev, false); - } - acpi_button_remove_fs(device); input_unregister_device(button->input); kfree(button); diff --git a/drivers/acpi/container.c b/drivers/acpi/container.c index e23151667655..0b6ae6eb5c4a 100644 --- a/drivers/acpi/container.c +++ b/drivers/acpi/container.c @@ -27,8 +27,7 @@ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ #include <linux/acpi.h> - -#include "internal.h" +#include <linux/container.h> #include "internal.h" @@ -44,19 +43,65 @@ static const struct acpi_device_id container_device_ids[] = { {"", 0}, }; -static int container_device_attach(struct acpi_device *device, +static int acpi_container_offline(struct container_dev *cdev) +{ + struct acpi_device *adev = ACPI_COMPANION(&cdev->dev); + struct acpi_device *child; + + /* Check all of the dependent devices' physical companions. */ + list_for_each_entry(child, &adev->children, node) + if (!acpi_scan_is_offline(child, false)) + return -EBUSY; + + return 0; +} + +static void acpi_container_release(struct device *dev) +{ + kfree(to_container_dev(dev)); +} + +static int container_device_attach(struct acpi_device *adev, const struct acpi_device_id *not_used) { - /* This is necessary for container hotplug to work. */ + struct container_dev *cdev; + struct device *dev; + int ret; + + cdev = kzalloc(sizeof(*cdev), GFP_KERNEL); + if (!cdev) + return -ENOMEM; + + cdev->offline = acpi_container_offline; + dev = &cdev->dev; + dev->bus = &container_subsys; + dev_set_name(dev, "%s", dev_name(&adev->dev)); + ACPI_COMPANION_SET(dev, adev); + dev->release = acpi_container_release; + ret = device_register(dev); + if (ret) + return ret; + + adev->driver_data = dev; return 1; } +static void container_device_detach(struct acpi_device *adev) +{ + struct device *dev = acpi_driver_data(adev); + + adev->driver_data = NULL; + if (dev) + device_unregister(dev); +} + static struct acpi_scan_handler container_handler = { .ids = container_device_ids, .attach = container_device_attach, + .detach = container_device_detach, .hotplug = { .enabled = true, - .mode = AHM_CONTAINER, + .demand_offline = true, }, }; diff --git a/drivers/acpi/custom_method.c b/drivers/acpi/custom_method.c index 12b62f2cdb3f..c68e72414a67 100644 --- a/drivers/acpi/custom_method.c +++ b/drivers/acpi/custom_method.c @@ -7,7 +7,7 @@ #include <linux/kernel.h> #include <linux/uaccess.h> #include <linux/debugfs.h> -#include <acpi/acpi_drivers.h> +#include <linux/acpi.h> #include "internal.h" diff --git a/drivers/acpi/debugfs.c b/drivers/acpi/debugfs.c index b55d6a20dc0e..6b1919f6bd82 100644 --- a/drivers/acpi/debugfs.c +++ b/drivers/acpi/debugfs.c @@ -5,7 +5,7 @@ #include <linux/export.h> #include <linux/init.h> #include <linux/debugfs.h> -#include <acpi/acpi_drivers.h> +#include <linux/acpi.h> #define _COMPONENT ACPI_SYSTEM_COMPONENT ACPI_MODULE_NAME("debugfs"); diff --git a/drivers/acpi/device_pm.c b/drivers/acpi/device_pm.c index b3480cf7db1a..d49f1e464703 100644 --- a/drivers/acpi/device_pm.c +++ b/drivers/acpi/device_pm.c @@ -256,6 +256,8 @@ int acpi_bus_init_power(struct acpi_device *device) return -EINVAL; device->power.state = ACPI_STATE_UNKNOWN; + if (!acpi_device_is_present(device)) + return 0; result = acpi_device_get_power(device, &state); if (result) @@ -302,15 +304,18 @@ int acpi_device_fix_up_power(struct acpi_device *device) return ret; } -int acpi_bus_update_power(acpi_handle handle, int *state_p) +int acpi_device_update_power(struct acpi_device *device, int *state_p) { - struct acpi_device *device; int state; int result; - result = acpi_bus_get_device(handle, &device); - if (result) + if (device->power.state == ACPI_STATE_UNKNOWN) { + result = acpi_bus_init_power(device); + if (!result && state_p) + *state_p = device->power.state; + return result; + } result = acpi_device_get_power(device, &state); if (result) @@ -338,6 +343,15 @@ int acpi_bus_update_power(acpi_handle handle, int *state_p) return 0; } + +int acpi_bus_update_power(acpi_handle handle, int *state_p) +{ + struct acpi_device *device; + int result; + + result = acpi_bus_get_device(handle, &device); + return result ? result : acpi_device_update_power(device, state_p); +} EXPORT_SYMBOL_GPL(acpi_bus_update_power); bool acpi_bus_power_manageable(acpi_handle handle) diff --git a/drivers/acpi/dock.c b/drivers/acpi/dock.c index dcd73ccb514c..c431c88faaff 100644 --- a/drivers/acpi/dock.c +++ b/drivers/acpi/dock.c @@ -32,8 +32,8 @@ #include <linux/jiffies.h> #include <linux/stddef.h> #include <linux/acpi.h> -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> + +#include "internal.h" #define PREFIX "ACPI: " @@ -323,14 +323,11 @@ static int dock_present(struct dock_station *ds) */ static void dock_create_acpi_device(acpi_handle handle) { - struct acpi_device *device; + struct acpi_device *device = NULL; int ret; - if (acpi_bus_get_device(handle, &device)) { - /* - * no device created for this object, - * so we should create one. - */ + acpi_bus_get_device(handle, &device); + if (!acpi_device_enumerated(device)) { ret = acpi_bus_scan(handle); if (ret) pr_debug("error adding bus, %x\n", -ret); @@ -898,9 +895,6 @@ find_dock_and_bay(acpi_handle handle, u32 lvl, void *context, void **rv) void __init acpi_dock_init(void) { - if (acpi_disabled) - return; - /* look for dock stations and bays */ acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, ACPI_UINT32_MAX, find_dock_and_bay, NULL, NULL, NULL); diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index ba5b56db9d27..959d41acc108 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -39,10 +39,9 @@ #include <linux/list.h> #include <linux/spinlock.h> #include <linux/slab.h> -#include <asm/io.h> -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> +#include <linux/acpi.h> #include <linux/dmi.h> +#include <asm/io.h> #include "internal.h" @@ -91,10 +90,6 @@ static unsigned int ec_storm_threshold __read_mostly = 8; module_param(ec_storm_threshold, uint, 0644); MODULE_PARM_DESC(ec_storm_threshold, "Maxim false GPE numbers not considered as GPE storm"); -/* If we find an EC via the ECDT, we need to keep a ptr to its context */ -/* External interfaces use first EC only, so remember */ -typedef int (*acpi_ec_query_func) (void *data); - struct acpi_ec_query_handler { struct list_head node; acpi_ec_query_func func; @@ -387,27 +382,6 @@ static int acpi_ec_write(struct acpi_ec *ec, u8 address, u8 data) return acpi_ec_transaction(ec, &t); } -/* - * Externally callable EC access functions. For now, assume 1 EC only - */ -int ec_burst_enable(void) -{ - if (!first_ec) - return -ENODEV; - return acpi_ec_burst_enable(first_ec); -} - -EXPORT_SYMBOL(ec_burst_enable); - -int ec_burst_disable(void) -{ - if (!first_ec) - return -ENODEV; - return acpi_ec_burst_disable(first_ec); -} - -EXPORT_SYMBOL(ec_burst_disable); - int ec_read(u8 addr, u8 *val) { int err; @@ -779,9 +753,9 @@ static int ec_install_handlers(struct acpi_ec *ec) pr_err("Fail in evaluating the _REG object" " of EC device. Broken bios is suspected.\n"); } else { + acpi_disable_gpe(NULL, ec->gpe); acpi_remove_gpe_handler(NULL, ec->gpe, &acpi_ec_gpe_handler); - acpi_disable_gpe(NULL, ec->gpe); return -ENODEV; } } diff --git a/drivers/acpi/ec_sys.c b/drivers/acpi/ec_sys.c index 4e7b798900f2..b4c216bab22b 100644 --- a/drivers/acpi/ec_sys.c +++ b/drivers/acpi/ec_sys.c @@ -105,7 +105,7 @@ static const struct file_operations acpi_ec_io_ops = { .llseek = default_llseek, }; -int acpi_ec_add_debugfs(struct acpi_ec *ec, unsigned int ec_device_count) +static int acpi_ec_add_debugfs(struct acpi_ec *ec, unsigned int ec_device_count) { struct dentry *dev_dir; char name[64]; diff --git a/drivers/acpi/event.c b/drivers/acpi/event.c index cae3b387b867..ef2d730734dc 100644 --- a/drivers/acpi/event.c +++ b/drivers/acpi/event.c @@ -12,7 +12,7 @@ #include <linux/init.h> #include <linux/poll.h> #include <linux/gfp.h> -#include <acpi/acpi_drivers.h> +#include <linux/acpi.h> #include <net/netlink.h> #include <net/genetlink.h> diff --git a/drivers/acpi/fan.c b/drivers/acpi/fan.c index ba3da88cee45..1fb62900f32a 100644 --- a/drivers/acpi/fan.c +++ b/drivers/acpi/fan.c @@ -29,8 +29,7 @@ #include <linux/types.h> #include <asm/uaccess.h> #include <linux/thermal.h> -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> +#include <linux/acpi.h> #define PREFIX "ACPI: " diff --git a/drivers/acpi/glue.c b/drivers/acpi/glue.c index a22a295edb69..0c789224d40d 100644 --- a/drivers/acpi/glue.c +++ b/drivers/acpi/glue.c @@ -37,7 +37,7 @@ int register_acpi_bus_type(struct acpi_bus_type *type) { if (acpi_disabled) return -ENODEV; - if (type && type->match && type->find_device) { + if (type && type->match && type->find_companion) { down_write(&bus_type_sem); list_add_tail(&type->list, &bus_type_list); up_write(&bus_type_sem); @@ -82,109 +82,74 @@ static struct acpi_bus_type *acpi_get_bus_type(struct device *dev) #define FIND_CHILD_MIN_SCORE 1 #define FIND_CHILD_MAX_SCORE 2 -static acpi_status acpi_dev_present(acpi_handle handle, u32 lvl_not_used, - void *not_used, void **ret_p) -{ - struct acpi_device *adev = NULL; - - acpi_bus_get_device(handle, &adev); - if (adev) { - *ret_p = handle; - return AE_CTRL_TERMINATE; - } - return AE_OK; -} - -static int do_find_child_checks(acpi_handle handle, bool is_bridge) +static int find_child_checks(struct acpi_device *adev, bool check_children) { bool sta_present = true; unsigned long long sta; acpi_status status; - status = acpi_evaluate_integer(handle, "_STA", NULL, &sta); + status = acpi_evaluate_integer(adev->handle, "_STA", NULL, &sta); if (status == AE_NOT_FOUND) sta_present = false; else if (ACPI_FAILURE(status) || !(sta & ACPI_STA_DEVICE_ENABLED)) return -ENODEV; - if (is_bridge) { - void *test = NULL; + if (check_children && list_empty(&adev->children)) + return -ENODEV; - /* Check if this object has at least one child device. */ - acpi_walk_namespace(ACPI_TYPE_DEVICE, handle, 1, - acpi_dev_present, NULL, NULL, &test); - if (!test) - return -ENODEV; - } return sta_present ? FIND_CHILD_MAX_SCORE : FIND_CHILD_MIN_SCORE; } -struct find_child_context { - u64 addr; - bool is_bridge; - acpi_handle ret; - int ret_score; -}; - -static acpi_status do_find_child(acpi_handle handle, u32 lvl_not_used, - void *data, void **not_used) -{ - struct find_child_context *context = data; - unsigned long long addr; - acpi_status status; - int score; - - status = acpi_evaluate_integer(handle, METHOD_NAME__ADR, NULL, &addr); - if (ACPI_FAILURE(status) || addr != context->addr) - return AE_OK; - - if (!context->ret) { - /* This is the first matching object. Save its handle. */ - context->ret = handle; - return AE_OK; - } - /* - * There is more than one matching object with the same _ADR value. - * That really is unexpected, so we are kind of beyond the scope of the - * spec here. We have to choose which one to return, though. - * - * First, check if the previously found object is good enough and return - * its handle if so. Second, check the same for the object that we've - * just found. - */ - if (!context->ret_score) { - score = do_find_child_checks(context->ret, context->is_bridge); - if (score == FIND_CHILD_MAX_SCORE) - return AE_CTRL_TERMINATE; - else - context->ret_score = score; - } - score = do_find_child_checks(handle, context->is_bridge); - if (score == FIND_CHILD_MAX_SCORE) { - context->ret = handle; - return AE_CTRL_TERMINATE; - } else if (score > context->ret_score) { - context->ret = handle; - context->ret_score = score; - } - return AE_OK; -} - -acpi_handle acpi_find_child(acpi_handle parent, u64 addr, bool is_bridge) +struct acpi_device *acpi_find_child_device(struct acpi_device *parent, + u64 address, bool check_children) { - if (parent) { - struct find_child_context context = { - .addr = addr, - .is_bridge = is_bridge, - }; - - acpi_walk_namespace(ACPI_TYPE_DEVICE, parent, 1, do_find_child, - NULL, &context, NULL); - return context.ret; + struct acpi_device *adev, *ret = NULL; + int ret_score = 0; + + if (!parent) + return NULL; + + list_for_each_entry(adev, &parent->children, node) { + unsigned long long addr; + acpi_status status; + int score; + + status = acpi_evaluate_integer(adev->handle, METHOD_NAME__ADR, + NULL, &addr); + if (ACPI_FAILURE(status) || addr != address) + continue; + + if (!ret) { + /* This is the first matching object. Save it. */ + ret = adev; + continue; + } + /* + * There is more than one matching device object with the same + * _ADR value. That really is unexpected, so we are kind of + * beyond the scope of the spec here. We have to choose which + * one to return, though. + * + * First, check if the previously found object is good enough + * and return it if so. Second, do the same for the object that + * we've just found. + */ + if (!ret_score) { + ret_score = find_child_checks(ret, check_children); + if (ret_score == FIND_CHILD_MAX_SCORE) + return ret; + } + score = find_child_checks(adev, check_children); + if (score == FIND_CHILD_MAX_SCORE) { + return adev; + } else if (score > ret_score) { + ret = adev; + ret_score = score; + } } - return NULL; + return ret; } -EXPORT_SYMBOL_GPL(acpi_find_child); +EXPORT_SYMBOL_GPL(acpi_find_child_device); static void acpi_physnode_link_name(char *buf, unsigned int node_id) { @@ -195,9 +160,8 @@ static void acpi_physnode_link_name(char *buf, unsigned int node_id) strcpy(buf, PHYSICAL_NODE_STRING); } -int acpi_bind_one(struct device *dev, acpi_handle handle) +int acpi_bind_one(struct device *dev, struct acpi_device *acpi_dev) { - struct acpi_device *acpi_dev = NULL; struct acpi_device_physical_node *physical_node, *pn; char physical_node_name[PHYSICAL_NODE_NAME_SIZE]; struct list_head *physnode_list; @@ -205,14 +169,12 @@ int acpi_bind_one(struct device *dev, acpi_handle handle) int retval = -EINVAL; if (ACPI_COMPANION(dev)) { - if (handle) { + if (acpi_dev) { dev_warn(dev, "ACPI companion already set\n"); return -EINVAL; } else { acpi_dev = ACPI_COMPANION(dev); } - } else { - acpi_bus_get_device(handle, &acpi_dev); } if (!acpi_dev) return -EINVAL; @@ -322,29 +284,22 @@ int acpi_unbind_one(struct device *dev) } EXPORT_SYMBOL_GPL(acpi_unbind_one); -void acpi_preset_companion(struct device *dev, acpi_handle parent, u64 addr) -{ - struct acpi_device *adev; - - if (!acpi_bus_get_device(acpi_get_child(parent, addr), &adev)) - ACPI_COMPANION_SET(dev, adev); -} -EXPORT_SYMBOL_GPL(acpi_preset_companion); - static int acpi_platform_notify(struct device *dev) { struct acpi_bus_type *type = acpi_get_bus_type(dev); - acpi_handle handle; int ret; ret = acpi_bind_one(dev, NULL); if (ret && type) { - ret = type->find_device(dev, &handle); - if (ret) { + struct acpi_device *adev; + + adev = type->find_companion(dev); + if (!adev) { DBG("Unable to get handle for %s\n", dev_name(dev)); + ret = -ENODEV; goto out; } - ret = acpi_bind_one(dev, handle); + ret = acpi_bind_one(dev, adev); if (ret) goto out; } diff --git a/drivers/acpi/hed.c b/drivers/acpi/hed.c index 13b1d39d7cdf..aafe3ca829c2 100644 --- a/drivers/acpi/hed.c +++ b/drivers/acpi/hed.c @@ -25,8 +25,6 @@ #include <linux/module.h> #include <linux/init.h> #include <linux/acpi.h> -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> #include <acpi/hed.h> static struct acpi_device_id acpi_hed_ids[] = { diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h index a29739c0ba79..dedbb2d802f1 100644 --- a/drivers/acpi/internal.h +++ b/drivers/acpi/internal.h @@ -28,7 +28,6 @@ int init_acpi_device_notify(void); int acpi_scan_init(void); void acpi_pci_root_init(void); void acpi_pci_link_init(void); -void acpi_pci_root_hp_init(void); void acpi_processor_init(void); void acpi_platform_init(void); int acpi_sysfs_init(void); @@ -73,6 +72,9 @@ void acpi_lpss_init(void); static inline void acpi_lpss_init(void) {} #endif +bool acpi_queue_hotplug_work(struct work_struct *work); +bool acpi_scan_is_offline(struct acpi_device *adev, bool uevent); + /* -------------------------------------------------------------------------- Device Node Initialization / Removal -------------------------------------------------------------------------- */ @@ -85,9 +87,9 @@ void acpi_init_device_object(struct acpi_device *device, acpi_handle handle, int type, unsigned long long sta); void acpi_device_add_finalize(struct acpi_device *device); void acpi_free_pnp_ids(struct acpi_device_pnp *pnp); -int acpi_bind_one(struct device *dev, acpi_handle handle); +int acpi_bind_one(struct device *dev, struct acpi_device *adev); int acpi_unbind_one(struct device *dev); -void acpi_bus_device_eject(void *data, u32 ost_src); +bool acpi_device_is_present(struct acpi_device *adev); /* -------------------------------------------------------------------------- Power Resource @@ -105,6 +107,8 @@ int acpi_power_get_inferred_state(struct acpi_device *device, int *state); int acpi_power_on_resources(struct acpi_device *device, int state); int acpi_power_transition(struct acpi_device *device, int state); +int acpi_device_update_power(struct acpi_device *device, int *state_p); + int acpi_wakeup_device_init(void); void acpi_early_processor_set_pdc(void); @@ -127,12 +131,21 @@ struct acpi_ec { extern struct acpi_ec *first_ec; +/* If we find an EC via the ECDT, we need to keep a ptr to its context */ +/* External interfaces use first EC only, so remember */ +typedef int (*acpi_ec_query_func) (void *data); + int acpi_ec_init(void); int acpi_ec_ecdt_probe(void); int acpi_boot_ec_enable(void); void acpi_ec_block_transactions(void); void acpi_ec_unblock_transactions(void); void acpi_ec_unblock_transactions_early(void); +int acpi_ec_add_query_handler(struct acpi_ec *ec, u8 query_bit, + acpi_handle handle, acpi_ec_query_func func, + void *data); +void acpi_ec_remove_query_handler(struct acpi_ec *ec, u8 query_bit); + /*-------------------------------------------------------------------------- Suspend/Resume diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c index a2343a1d9e0b..9e6816ef280a 100644 --- a/drivers/acpi/numa.c +++ b/drivers/acpi/numa.c @@ -29,7 +29,6 @@ #include <linux/errno.h> #include <linux/acpi.h> #include <linux/numa.h> -#include <acpi/acpi_bus.h> #define PREFIX "ACPI: " diff --git a/drivers/acpi/nvs.c b/drivers/acpi/nvs.c index 386a9fe497b4..de4fe03873c5 100644 --- a/drivers/acpi/nvs.c +++ b/drivers/acpi/nvs.c @@ -12,7 +12,8 @@ #include <linux/mm.h> #include <linux/slab.h> #include <linux/acpi.h> -#include <linux/acpi_io.h> + +#include "internal.h" /* ACPI NVS regions, APEI may use it */ diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index 54a20ff4b864..fc1aa7909690 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -39,7 +39,6 @@ #include <linux/workqueue.h> #include <linux/nmi.h> #include <linux/acpi.h> -#include <linux/acpi_io.h> #include <linux/efi.h> #include <linux/ioport.h> #include <linux/list.h> @@ -49,9 +48,6 @@ #include <asm/io.h> #include <asm/uaccess.h> -#include <acpi/acpi.h> -#include <acpi/acpi_bus.h> -#include <acpi/processor.h> #include "internal.h" #define _COMPONENT ACPI_OS_SERVICES @@ -544,7 +540,7 @@ static u64 acpi_tables_addr; static int all_tables_size; /* Copied from acpica/tbutils.c:acpi_tb_checksum() */ -u8 __init acpi_table_checksum(u8 *buffer, u32 length) +static u8 __init acpi_table_checksum(u8 *buffer, u32 length) { u8 sum = 0; u8 *end = buffer + length; @@ -1215,6 +1211,10 @@ acpi_status acpi_hotplug_execute(acpi_hp_callback func, void *data, u32 src) return AE_OK; } +bool acpi_queue_hotplug_work(struct work_struct *work) +{ + return queue_work(kacpi_hotplug_wq, work); +} acpi_status acpi_os_create_semaphore(u32 max_units, u32 initial_units, acpi_handle * handle) @@ -1282,7 +1282,7 @@ acpi_status acpi_os_wait_semaphore(acpi_handle handle, u32 units, u16 timeout) jiffies = MAX_SCHEDULE_TIMEOUT; else jiffies = msecs_to_jiffies(timeout); - + ret = down_timeout(sem, jiffies); if (ret) status = AE_TIME; @@ -1794,7 +1794,7 @@ acpi_status __init acpi_os_initialize1(void) { kacpid_wq = alloc_workqueue("kacpid", 0, 1); kacpi_notify_wq = alloc_workqueue("kacpi_notify", 0, 1); - kacpi_hotplug_wq = alloc_workqueue("kacpi_hotplug", 0, 1); + kacpi_hotplug_wq = alloc_ordered_workqueue("kacpi_hotplug", 0); BUG_ON(!kacpid_wq); BUG_ON(!kacpi_notify_wq); BUG_ON(!kacpi_hotplug_wq); diff --git a/drivers/acpi/pci_irq.c b/drivers/acpi/pci_irq.c index 41c5e1b799ef..52d45ea2bc4f 100644 --- a/drivers/acpi/pci_irq.c +++ b/drivers/acpi/pci_irq.c @@ -37,8 +37,6 @@ #include <linux/pci.h> #include <linux/acpi.h> #include <linux/slab.h> -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> #define PREFIX "ACPI: " diff --git a/drivers/acpi/pci_link.c b/drivers/acpi/pci_link.c index 2652a614deeb..9418c7a1f786 100644 --- a/drivers/acpi/pci_link.c +++ b/drivers/acpi/pci_link.c @@ -39,9 +39,9 @@ #include <linux/pci.h> #include <linux/mutex.h> #include <linux/slab.h> +#include <linux/acpi.h> -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> +#include "internal.h" #define PREFIX "ACPI: " diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c index 20360e480bd8..afafee56cf8b 100644 --- a/drivers/acpi/pci_root.c +++ b/drivers/acpi/pci_root.c @@ -35,9 +35,7 @@ #include <linux/pci-aspm.h> #include <linux/acpi.h> #include <linux/slab.h> -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> -#include <acpi/apei.h> +#include <acpi/apei.h> /* for acpi_hest_init() */ #include "internal.h" @@ -51,6 +49,12 @@ static int acpi_pci_root_add(struct acpi_device *device, const struct acpi_device_id *not_used); static void acpi_pci_root_remove(struct acpi_device *device); +static int acpi_pci_root_scan_dependent(struct acpi_device *adev) +{ + acpiphp_check_host_bridge(adev->handle); + return 0; +} + #define ACPI_PCIE_REQ_SUPPORT (OSC_PCI_EXT_CONFIG_SUPPORT \ | OSC_PCI_ASPM_SUPPORT \ | OSC_PCI_CLOCK_PM_SUPPORT \ @@ -66,7 +70,8 @@ static struct acpi_scan_handler pci_root_handler = { .attach = acpi_pci_root_add, .detach = acpi_pci_root_remove, .hotplug = { - .ignore = true, + .enabled = true, + .scan_dependent = acpi_pci_root_scan_dependent, }, }; @@ -624,116 +629,9 @@ static void acpi_pci_root_remove(struct acpi_device *device) void __init acpi_pci_root_init(void) { acpi_hest_init(); - - if (!acpi_pci_disabled) { - pci_acpi_crs_quirks(); - acpi_scan_add_handler(&pci_root_handler); - } -} -/* Support root bridge hotplug */ - -static void handle_root_bridge_insertion(acpi_handle handle) -{ - struct acpi_device *device; - - if (!acpi_bus_get_device(handle, &device)) { - dev_printk(KERN_DEBUG, &device->dev, - "acpi device already exists; ignoring notify\n"); + if (acpi_pci_disabled) return; - } - - if (acpi_bus_scan(handle)) - acpi_handle_err(handle, "cannot add bridge to acpi list\n"); -} - -static void hotplug_event_root(void *data, u32 type) -{ - acpi_handle handle = data; - struct acpi_pci_root *root; - - acpi_scan_lock_acquire(); - - root = acpi_pci_find_root(handle); - - switch (type) { - case ACPI_NOTIFY_BUS_CHECK: - /* bus enumerate */ - acpi_handle_printk(KERN_DEBUG, handle, - "Bus check notify on %s\n", __func__); - if (root) - acpiphp_check_host_bridge(handle); - else - handle_root_bridge_insertion(handle); - - break; - - case ACPI_NOTIFY_DEVICE_CHECK: - /* device check */ - acpi_handle_printk(KERN_DEBUG, handle, - "Device check notify on %s\n", __func__); - if (!root) - handle_root_bridge_insertion(handle); - break; - - case ACPI_NOTIFY_EJECT_REQUEST: - /* request device eject */ - acpi_handle_printk(KERN_DEBUG, handle, - "Device eject notify on %s\n", __func__); - if (!root) - break; - - get_device(&root->device->dev); - - acpi_scan_lock_release(); - - acpi_bus_device_eject(root->device, ACPI_NOTIFY_EJECT_REQUEST); - return; - default: - acpi_handle_warn(handle, - "notify_handler: unknown event type 0x%x\n", - type); - break; - } - - acpi_scan_lock_release(); -} - -static void handle_hotplug_event_root(acpi_handle handle, u32 type, - void *context) -{ - acpi_hotplug_execute(hotplug_event_root, handle, type); -} - -static acpi_status __init -find_root_bridges(acpi_handle handle, u32 lvl, void *context, void **rv) -{ - acpi_status status; - int *count = (int *)context; - - if (!acpi_is_root_bridge(handle)) - return AE_OK; - - (*count)++; - - status = acpi_install_notify_handler(handle, ACPI_SYSTEM_NOTIFY, - handle_hotplug_event_root, NULL); - if (ACPI_FAILURE(status)) - acpi_handle_printk(KERN_DEBUG, handle, - "notify handler is not installed, exit status: %u\n", - (unsigned int)status); - else - acpi_handle_printk(KERN_DEBUG, handle, - "notify handler is installed\n"); - - return AE_OK; -} - -void __init acpi_pci_root_hp_init(void) -{ - int num = 0; - - acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, - ACPI_UINT32_MAX, find_root_bridges, NULL, &num, NULL); - printk(KERN_DEBUG "Found %d acpi root devices\n", num); + pci_acpi_crs_quirks(); + acpi_scan_add_handler_with_hotplug(&pci_root_handler, "pci_root"); } diff --git a/drivers/acpi/pci_slot.c b/drivers/acpi/pci_slot.c index d678a180ca2a..139d9e479370 100644 --- a/drivers/acpi/pci_slot.c +++ b/drivers/acpi/pci_slot.c @@ -35,6 +35,7 @@ #include <linux/pci.h> #include <linux/acpi.h> #include <linux/dmi.h> +#include <linux/pci-acpi.h> static bool debug; static int check_sta_before_sun; diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c index c2ad391d8041..ad7da686e6e6 100644 --- a/drivers/acpi/power.c +++ b/drivers/acpi/power.c @@ -42,8 +42,7 @@ #include <linux/slab.h> #include <linux/pm_runtime.h> #include <linux/sysfs.h> -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> +#include <linux/acpi.h> #include "sleep.h" #include "internal.h" diff --git a/drivers/acpi/proc.c b/drivers/acpi/proc.c index 6a5b152ad4d0..50fe34ffe932 100644 --- a/drivers/acpi/proc.c +++ b/drivers/acpi/proc.c @@ -3,12 +3,11 @@ #include <linux/export.h> #include <linux/suspend.h> #include <linux/bcd.h> +#include <linux/acpi.h> #include <asm/uaccess.h> -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> - #include "sleep.h" +#include "internal.h" #define _COMPONENT ACPI_SYSTEM_COMPONENT diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c index b3171f30b319..34e7b3c6a08d 100644 --- a/drivers/acpi/processor_core.c +++ b/drivers/acpi/processor_core.c @@ -10,8 +10,7 @@ #include <linux/export.h> #include <linux/dmi.h> #include <linux/slab.h> - -#include <acpi/acpi_drivers.h> +#include <linux/acpi.h> #include <acpi/processor.h> #include "internal.h" diff --git a/drivers/acpi/processor_driver.c b/drivers/acpi/processor_driver.c index 146ab7e2b81d..c1c35623550f 100644 --- a/drivers/acpi/processor_driver.c +++ b/drivers/acpi/processor_driver.c @@ -224,9 +224,9 @@ static int __acpi_processor_start(struct acpi_device *device) static int acpi_processor_start(struct device *dev) { - struct acpi_device *device; + struct acpi_device *device = ACPI_COMPANION(dev); - if (acpi_bus_get_device(ACPI_HANDLE(dev), &device)) + if (!device) return -ENODEV; return __acpi_processor_start(device); @@ -234,10 +234,10 @@ static int acpi_processor_start(struct device *dev) static int acpi_processor_stop(struct device *dev) { - struct acpi_device *device; + struct acpi_device *device = ACPI_COMPANION(dev); struct acpi_processor *pr; - if (acpi_bus_get_device(ACPI_HANDLE(dev), &device)) + if (!device) return 0; acpi_remove_notify_handler(device->handle, ACPI_DEVICE_NOTIFY, diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c index 644516d9bde6..1fc455b8ce17 100644 --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -35,6 +35,7 @@ #include <linux/clockchips.h> #include <linux/cpuidle.h> #include <linux/syscore_ops.h> +#include <acpi/processor.h> /* * Include the apic definitions for x86 to have the APIC timer related defines @@ -46,9 +47,6 @@ #include <asm/apic.h> #endif -#include <acpi/acpi_bus.h> -#include <acpi/processor.h> - #define PREFIX "ACPI: " #define ACPI_PROCESSOR_CLASS "processor" @@ -213,7 +211,7 @@ static int acpi_processor_suspend(void) static void acpi_processor_resume(void) { - u32 resumed_bm_rld; + u32 resumed_bm_rld = 0; acpi_read_bit_register(ACPI_BITREG_BUS_MASTER_RLD, &resumed_bm_rld); if (resumed_bm_rld == saved_bm_rld) @@ -598,7 +596,7 @@ static int acpi_processor_power_verify(struct acpi_processor *pr) case ACPI_STATE_C2: if (!cx->address) break; - cx->valid = 1; + cx->valid = 1; break; case ACPI_STATE_C3: @@ -785,6 +783,13 @@ static int acpi_idle_enter_simple(struct cpuidle_device *dev, if (unlikely(!pr)) return -EINVAL; +#ifdef CONFIG_HOTPLUG_CPU + if ((cx->type != ACPI_STATE_C1) && (num_online_cpus() > 1) && + !pr->flags.has_cst && + !(acpi_gbl_FADT.flags & ACPI_FADT_C2_MP_SUPPORTED)) + return acpi_idle_enter_c1(dev, drv, CPUIDLE_DRIVER_STATE_START); +#endif + if (cx->entry_method == ACPI_CSTATE_FFH) { if (current_set_polling_and_test()) return -EINVAL; @@ -831,6 +836,13 @@ static int acpi_idle_enter_bm(struct cpuidle_device *dev, if (unlikely(!pr)) return -EINVAL; +#ifdef CONFIG_HOTPLUG_CPU + if ((cx->type != ACPI_STATE_C1) && (num_online_cpus() > 1) && + !pr->flags.has_cst && + !(acpi_gbl_FADT.flags & ACPI_FADT_C2_MP_SUPPORTED)) + return acpi_idle_enter_c1(dev, drv, CPUIDLE_DRIVER_STATE_START); +#endif + if (!cx->bm_sts_skip && acpi_idle_bm_check()) { if (drv->safe_state_index >= 0) { return drv->states[drv->safe_state_index].enter(dev, @@ -932,12 +944,6 @@ static int acpi_processor_setup_cpuidle_cx(struct acpi_processor *pr, if (!cx->valid) continue; -#ifdef CONFIG_HOTPLUG_CPU - if ((cx->type != ACPI_STATE_C1) && (num_online_cpus() > 1) && - !pr->flags.has_cst && - !(acpi_gbl_FADT.flags & ACPI_FADT_C2_MP_SUPPORTED)) - continue; -#endif per_cpu(acpi_cstate[count], dev->cpu) = cx; count++; @@ -945,8 +951,6 @@ static int acpi_processor_setup_cpuidle_cx(struct acpi_processor *pr, break; } - dev->state_count = count; - if (!count) return -EINVAL; @@ -987,13 +991,6 @@ static int acpi_processor_setup_cpuidle_states(struct acpi_processor *pr) if (!cx->valid) continue; -#ifdef CONFIG_HOTPLUG_CPU - if ((cx->type != ACPI_STATE_C1) && (num_online_cpus() > 1) && - !pr->flags.has_cst && - !(acpi_gbl_FADT.flags & ACPI_FADT_C2_MP_SUPPORTED)) - continue; -#endif - state = &drv->states[count]; snprintf(state->name, CPUIDLE_NAME_LEN, "C%d", i); strncpy(state->desc, cx->desc, CPUIDLE_DESC_LEN); diff --git a/drivers/acpi/processor_perflib.c b/drivers/acpi/processor_perflib.c index 60a7c28fc167..ff90054f04fd 100644 --- a/drivers/acpi/processor_perflib.c +++ b/drivers/acpi/processor_perflib.c @@ -31,15 +31,12 @@ #include <linux/init.h> #include <linux/cpufreq.h> #include <linux/slab.h> - +#include <linux/acpi.h> +#include <acpi/processor.h> #ifdef CONFIG_X86 #include <asm/cpufeature.h> #endif -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> -#include <acpi/processor.h> - #define PREFIX "ACPI: " #define ACPI_PROCESSOR_CLASS "processor" diff --git a/drivers/acpi/processor_thermal.c b/drivers/acpi/processor_thermal.c index d1d2e7fb5b30..e003663b2f8e 100644 --- a/drivers/acpi/processor_thermal.c +++ b/drivers/acpi/processor_thermal.c @@ -30,12 +30,9 @@ #include <linux/module.h> #include <linux/init.h> #include <linux/cpufreq.h> - -#include <asm/uaccess.h> - -#include <acpi/acpi_bus.h> +#include <linux/acpi.h> #include <acpi/processor.h> -#include <acpi/acpi_drivers.h> +#include <asm/uaccess.h> #define PREFIX "ACPI: " @@ -186,14 +183,14 @@ static int cpufreq_set_cur_state(unsigned int cpu, int state) #endif -/* thermal coolign device callbacks */ +/* thermal cooling device callbacks */ static int acpi_processor_max_state(struct acpi_processor *pr) { int max_state = 0; /* * There exists four states according to - * cpufreq_thermal_reduction_ptg. 0, 1, 2, 3 + * cpufreq_thermal_reduction_pctg. 0, 1, 2, 3 */ max_state += cpufreq_get_max_state(pr->id); if (pr->flags.throttling) diff --git a/drivers/acpi/processor_throttling.c b/drivers/acpi/processor_throttling.c index e7dd2c1fee79..28baa05b8018 100644 --- a/drivers/acpi/processor_throttling.c +++ b/drivers/acpi/processor_throttling.c @@ -32,14 +32,11 @@ #include <linux/init.h> #include <linux/sched.h> #include <linux/cpufreq.h> - +#include <linux/acpi.h> +#include <acpi/processor.h> #include <asm/io.h> #include <asm/uaccess.h> -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> -#include <acpi/processor.h> - #define PREFIX "ACPI: " #define ACPI_PROCESSOR_CLASS "processor" diff --git a/drivers/acpi/sbshc.c b/drivers/acpi/sbshc.c index b78bc605837e..26e5b5060523 100644 --- a/drivers/acpi/sbshc.c +++ b/drivers/acpi/sbshc.c @@ -8,8 +8,7 @@ * the Free Software Foundation version 2. */ -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> +#include <linux/acpi.h> #include <linux/wait.h> #include <linux/slab.h> #include <linux/delay.h> diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index fd39459926b1..e00365ccb897 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -12,13 +12,12 @@ #include <linux/dmi.h> #include <linux/nls.h> -#include <acpi/acpi_drivers.h> +#include <asm/pgtable.h> #include "internal.h" #define _COMPONENT ACPI_BUS_COMPONENT ACPI_MODULE_NAME("scan"); -#define STRUCT_TO_INT(s) (*((int*)&s)) extern struct acpi_device *acpi_root; #define ACPI_BUS_CLASS "system_bus" @@ -27,6 +26,8 @@ extern struct acpi_device *acpi_root; #define ACPI_IS_ROOT_DEVICE(device) (!(device)->parent) +#define INVALID_ACPI_HANDLE ((acpi_handle)empty_zero_page) + /* * If set, devices will be hot-removed even if they cannot be put offline * gracefully (from the kernel's standpoint). @@ -85,6 +86,9 @@ int acpi_scan_add_handler_with_hotplug(struct acpi_scan_handler *handler, * Creates hid/cid(s) string needed for modalias and uevent * e.g. on a device with hid:IBM0001 and cid:ACPI0001 you get: * char *modalias: "acpi:IBM0001:ACPI0001" + * Return: 0: no _HID and no _CID + * -EINVAL: output error + * -ENOMEM: output is truncated */ static int create_modalias(struct acpi_device *acpi_dev, char *modalias, int size) @@ -101,8 +105,10 @@ static int create_modalias(struct acpi_device *acpi_dev, char *modalias, list_for_each_entry(id, &acpi_dev->pnp.ids, list) { count = snprintf(&modalias[len], size, "%s:", id->id); - if (count < 0 || count >= size) - return -EINVAL; + if (count < 0) + return EINVAL; + if (count >= size) + return -ENOMEM; len += count; size -= count; } @@ -111,20 +117,96 @@ static int create_modalias(struct acpi_device *acpi_dev, char *modalias, return len; } +/* + * Creates uevent modalias field for ACPI enumerated devices. + * Because the other buses does not support ACPI HIDs & CIDs. + * e.g. for a device with hid:IBM0001 and cid:ACPI0001 you get: + * "acpi:IBM0001:ACPI0001" + */ +int acpi_device_uevent_modalias(struct device *dev, struct kobj_uevent_env *env) +{ + struct acpi_device *acpi_dev; + int len; + + acpi_dev = ACPI_COMPANION(dev); + if (!acpi_dev) + return -ENODEV; + + /* Fall back to bus specific way of modalias exporting */ + if (list_empty(&acpi_dev->pnp.ids)) + return -ENODEV; + + if (add_uevent_var(env, "MODALIAS=")) + return -ENOMEM; + len = create_modalias(acpi_dev, &env->buf[env->buflen - 1], + sizeof(env->buf) - env->buflen); + if (len <= 0) + return len; + env->buflen += len; + return 0; +} +EXPORT_SYMBOL_GPL(acpi_device_uevent_modalias); + +/* + * Creates modalias sysfs attribute for ACPI enumerated devices. + * Because the other buses does not support ACPI HIDs & CIDs. + * e.g. for a device with hid:IBM0001 and cid:ACPI0001 you get: + * "acpi:IBM0001:ACPI0001" + */ +int acpi_device_modalias(struct device *dev, char *buf, int size) +{ + struct acpi_device *acpi_dev; + int len; + + acpi_dev = ACPI_COMPANION(dev); + if (!acpi_dev) + return -ENODEV; + + /* Fall back to bus specific way of modalias exporting */ + if (list_empty(&acpi_dev->pnp.ids)) + return -ENODEV; + + len = create_modalias(acpi_dev, buf, size -1); + if (len <= 0) + return len; + buf[len++] = '\n'; + return len; +} +EXPORT_SYMBOL_GPL(acpi_device_modalias); + static ssize_t acpi_device_modalias_show(struct device *dev, struct device_attribute *attr, char *buf) { struct acpi_device *acpi_dev = to_acpi_device(dev); int len; - /* Device has no HID and no CID or string is >1024 */ len = create_modalias(acpi_dev, buf, 1024); if (len <= 0) - return 0; + return len; buf[len++] = '\n'; return len; } static DEVICE_ATTR(modalias, 0444, acpi_device_modalias_show, NULL); +bool acpi_scan_is_offline(struct acpi_device *adev, bool uevent) +{ + struct acpi_device_physical_node *pn; + bool offline = true; + + mutex_lock(&adev->physical_node_lock); + + list_for_each_entry(pn, &adev->physical_node_list, node) + if (device_supports_offline(pn->dev) && !pn->dev->offline) { + if (uevent) + kobject_uevent(&pn->dev->kobj, KOBJ_CHANGE); + + offline = false; + break; + } + + mutex_unlock(&adev->physical_node_lock); + return offline; +} + static acpi_status acpi_bus_offline(acpi_handle handle, u32 lvl, void *data, void **ret_p) { @@ -195,19 +277,11 @@ static acpi_status acpi_bus_online(acpi_handle handle, u32 lvl, void *data, return AE_OK; } -static int acpi_scan_hot_remove(struct acpi_device *device) +static int acpi_scan_try_to_offline(struct acpi_device *device) { acpi_handle handle = device->handle; - struct device *errdev; + struct device *errdev = NULL; acpi_status status; - unsigned long long sta; - - /* If there is no handle, the device node has been unregistered. */ - if (!handle) { - dev_dbg(&device->dev, "ACPI handle missing\n"); - put_device(&device->dev); - return -EINVAL; - } /* * Carry out two passes here and ignore errors in the first pass, @@ -218,7 +292,6 @@ static int acpi_scan_hot_remove(struct acpi_device *device) * * If the first pass is successful, the second one isn't needed, though. */ - errdev = NULL; status = acpi_walk_namespace(ACPI_TYPE_ANY, handle, ACPI_UINT32_MAX, NULL, acpi_bus_offline, (void *)false, (void **)&errdev); @@ -226,7 +299,6 @@ static int acpi_scan_hot_remove(struct acpi_device *device) dev_warn(errdev, "Offline disabled.\n"); acpi_walk_namespace(ACPI_TYPE_ANY, handle, ACPI_UINT32_MAX, acpi_bus_online, NULL, NULL, NULL); - put_device(&device->dev); return -EPERM; } acpi_bus_offline(handle, 0, (void *)false, (void **)&errdev); @@ -245,20 +317,32 @@ static int acpi_scan_hot_remove(struct acpi_device *device) acpi_walk_namespace(ACPI_TYPE_ANY, handle, ACPI_UINT32_MAX, acpi_bus_online, NULL, NULL, NULL); - put_device(&device->dev); return -EBUSY; } } + return 0; +} + +static int acpi_scan_hot_remove(struct acpi_device *device) +{ + acpi_handle handle = device->handle; + unsigned long long sta; + acpi_status status; + + if (device->handler->hotplug.demand_offline && !acpi_force_hot_remove) { + if (!acpi_scan_is_offline(device, true)) + return -EBUSY; + } else { + int error = acpi_scan_try_to_offline(device); + if (error) + return error; + } ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Hot-removing device %s...\n", dev_name(&device->dev))); acpi_bus_trim(device); - /* Device node has been unregistered. */ - put_device(&device->dev); - device = NULL; - acpi_evaluate_lck(handle, 0); /* * TBD: _EJD support. @@ -285,115 +369,127 @@ static int acpi_scan_hot_remove(struct acpi_device *device) return 0; } -void acpi_bus_device_eject(void *data, u32 ost_src) +static int acpi_scan_device_not_present(struct acpi_device *adev) { - struct acpi_device *device = data; - acpi_handle handle = device->handle; - u32 ost_code = ACPI_OST_SC_NON_SPECIFIC_FAILURE; - int error; + if (!acpi_device_enumerated(adev)) { + dev_warn(&adev->dev, "Still not present\n"); + return -EALREADY; + } + acpi_bus_trim(adev); + return 0; +} - lock_device_hotplug(); - mutex_lock(&acpi_scan_lock); +static int acpi_scan_device_check(struct acpi_device *adev) +{ + int error; - if (ost_src == ACPI_NOTIFY_EJECT_REQUEST) - acpi_evaluate_hotplug_ost(handle, ACPI_NOTIFY_EJECT_REQUEST, - ACPI_OST_SC_EJECT_IN_PROGRESS, NULL); + acpi_bus_get_status(adev); + if (adev->status.present || adev->status.functional) { + /* + * This function is only called for device objects for which + * matching scan handlers exist. The only situation in which + * the scan handler is not attached to this device object yet + * is when the device has just appeared (either it wasn't + * present at all before or it was removed and then added + * again). + */ + if (adev->handler) { + dev_warn(&adev->dev, "Already enumerated\n"); + return -EALREADY; + } + error = acpi_bus_scan(adev->handle); + if (error) { + dev_warn(&adev->dev, "Namespace scan failure\n"); + return error; + } + if (!adev->handler) { + dev_warn(&adev->dev, "Enumeration failure\n"); + error = -ENODEV; + } + } else { + error = acpi_scan_device_not_present(adev); + } + return error; +} - if (device->handler && device->handler->hotplug.mode == AHM_CONTAINER) - kobject_uevent(&device->dev.kobj, KOBJ_OFFLINE); +static int acpi_scan_bus_check(struct acpi_device *adev) +{ + struct acpi_scan_handler *handler = adev->handler; + struct acpi_device *child; + int error; - error = acpi_scan_hot_remove(device); - if (error == -EPERM) { - goto err_support; - } else if (error) { - goto err_out; + acpi_bus_get_status(adev); + if (!(adev->status.present || adev->status.functional)) { + acpi_scan_device_not_present(adev); + return 0; } + if (handler && handler->hotplug.scan_dependent) + return handler->hotplug.scan_dependent(adev); - out: - mutex_unlock(&acpi_scan_lock); - unlock_device_hotplug(); - return; - - err_support: - ost_code = ACPI_OST_SC_EJECT_NOT_SUPPORTED; - err_out: - acpi_evaluate_hotplug_ost(handle, ost_src, ost_code, NULL); - goto out; + error = acpi_bus_scan(adev->handle); + if (error) { + dev_warn(&adev->dev, "Namespace scan failure\n"); + return error; + } + list_for_each_entry(child, &adev->children, node) { + error = acpi_scan_bus_check(child); + if (error) + return error; + } + return 0; } -static void acpi_scan_bus_device_check(void *data, u32 ost_source) +static void acpi_device_hotplug(void *data, u32 src) { - acpi_handle handle = data; - struct acpi_device *device = NULL; u32 ost_code = ACPI_OST_SC_NON_SPECIFIC_FAILURE; + struct acpi_device *adev = data; int error; lock_device_hotplug(); mutex_lock(&acpi_scan_lock); - if (ost_source != ACPI_NOTIFY_BUS_CHECK) { - acpi_bus_get_device(handle, &device); - if (device) { - dev_warn(&device->dev, "Attempt to re-insert\n"); - goto out; - } - } - error = acpi_bus_scan(handle); - if (error) { - acpi_handle_warn(handle, "Namespace scan failure\n"); - goto out; - } - error = acpi_bus_get_device(handle, &device); - if (error) { - acpi_handle_warn(handle, "Missing device node object\n"); + /* + * The device object's ACPI handle cannot become invalid as long as we + * are holding acpi_scan_lock, but it may have become invalid before + * that lock was acquired. + */ + if (adev->handle == INVALID_ACPI_HANDLE) goto out; - } - ost_code = ACPI_OST_SC_SUCCESS; - if (device->handler && device->handler->hotplug.mode == AHM_CONTAINER) - kobject_uevent(&device->dev.kobj, KOBJ_ONLINE); - out: - acpi_evaluate_hotplug_ost(handle, ost_source, ost_code, NULL); - mutex_unlock(&acpi_scan_lock); - unlock_device_hotplug(); -} - -static void acpi_hotplug_unsupported(acpi_handle handle, u32 type) -{ - u32 ost_status; - - switch (type) { + switch (src) { case ACPI_NOTIFY_BUS_CHECK: - acpi_handle_debug(handle, - "ACPI_NOTIFY_BUS_CHECK event: unsupported\n"); - ost_status = ACPI_OST_SC_INSERT_NOT_SUPPORTED; + error = acpi_scan_bus_check(adev); break; case ACPI_NOTIFY_DEVICE_CHECK: - acpi_handle_debug(handle, - "ACPI_NOTIFY_DEVICE_CHECK event: unsupported\n"); - ost_status = ACPI_OST_SC_INSERT_NOT_SUPPORTED; + error = acpi_scan_device_check(adev); break; case ACPI_NOTIFY_EJECT_REQUEST: - acpi_handle_debug(handle, - "ACPI_NOTIFY_EJECT_REQUEST event: unsupported\n"); - ost_status = ACPI_OST_SC_EJECT_NOT_SUPPORTED; + case ACPI_OST_EC_OSPM_EJECT: + error = acpi_scan_hot_remove(adev); break; default: - /* non-hotplug event; possibly handled by other handler */ - return; + error = -EINVAL; + break; } + if (!error) + ost_code = ACPI_OST_SC_SUCCESS; - acpi_evaluate_hotplug_ost(handle, type, ost_status, NULL); + out: + acpi_evaluate_hotplug_ost(adev->handle, src, ost_code, NULL); + put_device(&adev->dev); + mutex_unlock(&acpi_scan_lock); + unlock_device_hotplug(); } static void acpi_hotplug_notify_cb(acpi_handle handle, u32 type, void *data) { + u32 ost_code = ACPI_OST_SC_NON_SPECIFIC_FAILURE; struct acpi_scan_handler *handler = data; struct acpi_device *adev; acpi_status status; - if (!handler->hotplug.enabled) - return acpi_hotplug_unsupported(handle, type); + if (acpi_bus_get_device(handle, &adev)) + goto err_out; switch (type) { case ACPI_NOTIFY_BUS_CHECK: @@ -404,27 +500,27 @@ static void acpi_hotplug_notify_cb(acpi_handle handle, u32 type, void *data) break; case ACPI_NOTIFY_EJECT_REQUEST: acpi_handle_debug(handle, "ACPI_NOTIFY_EJECT_REQUEST event\n"); - if (acpi_bus_get_device(handle, &adev)) + if (!handler->hotplug.enabled) { + acpi_handle_err(handle, "Eject disabled\n"); + ost_code = ACPI_OST_SC_EJECT_NOT_SUPPORTED; goto err_out; - - get_device(&adev->dev); - status = acpi_hotplug_execute(acpi_bus_device_eject, adev, type); - if (ACPI_SUCCESS(status)) - return; - - put_device(&adev->dev); - goto err_out; + } + acpi_evaluate_hotplug_ost(handle, ACPI_NOTIFY_EJECT_REQUEST, + ACPI_OST_SC_EJECT_IN_PROGRESS, NULL); + break; default: /* non-hotplug event; possibly handled by other handler */ return; } - status = acpi_hotplug_execute(acpi_scan_bus_device_check, handle, type); + get_device(&adev->dev); + status = acpi_hotplug_execute(acpi_device_hotplug, adev, type); if (ACPI_SUCCESS(status)) return; + put_device(&adev->dev); + err_out: - acpi_evaluate_hotplug_ost(handle, type, - ACPI_OST_SC_NON_SPECIFIC_FAILURE, NULL); + acpi_evaluate_hotplug_ost(handle, type, ost_code, NULL); } static ssize_t real_power_state_show(struct device *dev, @@ -475,7 +571,7 @@ acpi_eject_store(struct device *d, struct device_attribute *attr, acpi_evaluate_hotplug_ost(acpi_device->handle, ACPI_OST_EC_OSPM_EJECT, ACPI_OST_SC_EJECT_IN_PROGRESS, NULL); get_device(&acpi_device->dev); - status = acpi_hotplug_execute(acpi_bus_device_eject, acpi_device, + status = acpi_hotplug_execute(acpi_device_hotplug, acpi_device, ACPI_OST_EC_OSPM_EJECT); if (ACPI_SUCCESS(status)) return count; @@ -567,6 +663,20 @@ acpi_device_sun_show(struct device *dev, struct device_attribute *attr, } static DEVICE_ATTR(sun, 0444, acpi_device_sun_show, NULL); +static ssize_t status_show(struct device *dev, struct device_attribute *attr, + char *buf) { + struct acpi_device *acpi_dev = to_acpi_device(dev); + acpi_status status; + unsigned long long sta; + + status = acpi_evaluate_integer(acpi_dev->handle, "_STA", NULL, &sta); + if (ACPI_FAILURE(status)) + return -ENODEV; + + return sprintf(buf, "%llu\n", sta); +} +static DEVICE_ATTR_RO(status); + static int acpi_device_setup_files(struct acpi_device *dev) { struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL}; @@ -622,6 +732,12 @@ static int acpi_device_setup_files(struct acpi_device *dev) dev->pnp.sun = (unsigned long)-1; } + if (acpi_has_method(dev->handle, "_STA")) { + result = device_create_file(&dev->dev, &dev_attr_status); + if (result) + goto end; + } + /* * If device has _EJ0, 'eject' file is created that is used to trigger * hot-removal function from userland. @@ -677,6 +793,8 @@ static void acpi_device_remove_files(struct acpi_device *dev) device_remove_file(&dev->dev, &dev_attr_adr); device_remove_file(&dev->dev, &dev_attr_modalias); device_remove_file(&dev->dev, &dev_attr_hid); + if (acpi_has_method(dev->handle, "_STA")) + device_remove_file(&dev->dev, &dev_attr_status); if (dev->handle) device_remove_file(&dev->dev, &dev_attr_path); } @@ -782,8 +900,8 @@ static int acpi_device_uevent(struct device *dev, struct kobj_uevent_env *env) return -ENOMEM; len = create_modalias(acpi_dev, &env->buf[env->buflen - 1], sizeof(env->buf) - env->buflen); - if (len >= (sizeof(env->buf) - env->buflen)) - return -ENOMEM; + if (len <= 0) + return len; env->buflen += len; return 0; } @@ -907,9 +1025,91 @@ struct bus_type acpi_bus_type = { .uevent = acpi_device_uevent, }; -static void acpi_bus_data_handler(acpi_handle handle, void *context) +static void acpi_device_del(struct acpi_device *device) +{ + mutex_lock(&acpi_device_lock); + if (device->parent) + list_del(&device->node); + + list_del(&device->wakeup_list); + mutex_unlock(&acpi_device_lock); + + acpi_power_add_remove_device(device, false); + acpi_device_remove_files(device); + if (device->remove) + device->remove(device); + + device_del(&device->dev); +} + +static LIST_HEAD(acpi_device_del_list); +static DEFINE_MUTEX(acpi_device_del_lock); + +static void acpi_device_del_work_fn(struct work_struct *work_not_used) +{ + for (;;) { + struct acpi_device *adev; + + mutex_lock(&acpi_device_del_lock); + + if (list_empty(&acpi_device_del_list)) { + mutex_unlock(&acpi_device_del_lock); + break; + } + adev = list_first_entry(&acpi_device_del_list, + struct acpi_device, del_list); + list_del(&adev->del_list); + + mutex_unlock(&acpi_device_del_lock); + + acpi_device_del(adev); + /* + * Drop references to all power resources that might have been + * used by the device. + */ + acpi_power_transition(adev, ACPI_STATE_D3_COLD); + put_device(&adev->dev); + } +} + +/** + * acpi_scan_drop_device - Drop an ACPI device object. + * @handle: Handle of an ACPI namespace node, not used. + * @context: Address of the ACPI device object to drop. + * + * This is invoked by acpi_ns_delete_node() during the removal of the ACPI + * namespace node the device object pointed to by @context is attached to. + * + * The unregistration is carried out asynchronously to avoid running + * acpi_device_del() under the ACPICA's namespace mutex and the list is used to + * ensure the correct ordering (the device objects must be unregistered in the + * same order in which the corresponding namespace nodes are deleted). + */ +static void acpi_scan_drop_device(acpi_handle handle, void *context) { - /* Intentionally empty. */ + static DECLARE_WORK(work, acpi_device_del_work_fn); + struct acpi_device *adev = context; + + mutex_lock(&acpi_device_del_lock); + + /* + * Use the ACPI hotplug workqueue which is ordered, so this work item + * won't run after any hotplug work items submitted subsequently. That + * prevents attempts to register device objects identical to those being + * deleted from happening concurrently (such attempts result from + * hotplug events handled via the ACPI hotplug workqueue). It also will + * run after all of the work items submitted previosuly, which helps + * those work items to ensure that they are not accessing stale device + * objects. + */ + if (list_empty(&acpi_device_del_list)) + acpi_queue_hotplug_work(&work); + + list_add_tail(&adev->del_list, &acpi_device_del_list); + /* Make acpi_ns_validate_handle() return NULL for this handle. */ + adev->handle = INVALID_ACPI_HANDLE; + + mutex_unlock(&acpi_device_del_lock); } int acpi_bus_get_device(acpi_handle handle, struct acpi_device **device) @@ -919,7 +1119,7 @@ int acpi_bus_get_device(acpi_handle handle, struct acpi_device **device) if (!device) return -EINVAL; - status = acpi_get_data(handle, acpi_bus_data_handler, (void **)device); + status = acpi_get_data(handle, acpi_scan_drop_device, (void **)device); if (ACPI_FAILURE(status) || !*device) { ACPI_DEBUG_PRINT((ACPI_DB_INFO, "No context for object [%p]\n", handle)); @@ -939,7 +1139,7 @@ int acpi_device_add(struct acpi_device *device, if (device->handle) { acpi_status status; - status = acpi_attach_data(device->handle, acpi_bus_data_handler, + status = acpi_attach_data(device->handle, acpi_scan_drop_device, device); if (ACPI_FAILURE(status)) { acpi_handle_err(device->handle, @@ -957,6 +1157,7 @@ int acpi_device_add(struct acpi_device *device, INIT_LIST_HEAD(&device->node); INIT_LIST_HEAD(&device->wakeup_list); INIT_LIST_HEAD(&device->physical_node_list); + INIT_LIST_HEAD(&device->del_list); mutex_init(&device->physical_node_lock); new_bus_id = kzalloc(sizeof(struct acpi_device_bus_id), GFP_KERNEL); @@ -1020,37 +1221,10 @@ int acpi_device_add(struct acpi_device *device, mutex_unlock(&acpi_device_lock); err_detach: - acpi_detach_data(device->handle, acpi_bus_data_handler); + acpi_detach_data(device->handle, acpi_scan_drop_device); return result; } -static void acpi_device_unregister(struct acpi_device *device) -{ - mutex_lock(&acpi_device_lock); - if (device->parent) - list_del(&device->node); - - list_del(&device->wakeup_list); - mutex_unlock(&acpi_device_lock); - - acpi_detach_data(device->handle, acpi_bus_data_handler); - - acpi_power_add_remove_device(device, false); - acpi_device_remove_files(device); - if (device->remove) - device->remove(device); - - device_del(&device->dev); - /* - * Transition the device to D3cold to drop the reference counts of all - * power resources the device depends on and turn off the ones that have - * no more references. - */ - acpi_device_set_power(device, ACPI_STATE_D3_COLD); - device->handle = NULL; - put_device(&device->dev); -} - /* -------------------------------------------------------------------------- Driver Management -------------------------------------------------------------------------- */ @@ -1624,11 +1798,13 @@ void acpi_init_device_object(struct acpi_device *device, acpi_handle handle, device->device_type = type; device->handle = handle; device->parent = acpi_bus_get_parent(handle); - STRUCT_TO_INT(device->status) = sta; + acpi_set_device_status(device, sta); acpi_device_get_busid(device); acpi_set_pnp_ids(handle, &device->pnp, type); acpi_bus_get_flags(device); device->flags.match_driver = false; + device->flags.initialized = true; + device->flags.visited = false; device_initialize(&device->dev); dev_set_uevent_suppress(&device->dev, true); } @@ -1713,6 +1889,15 @@ static int acpi_bus_type_and_status(acpi_handle handle, int *type, return 0; } +bool acpi_device_is_present(struct acpi_device *adev) +{ + if (adev->status.present || adev->status.functional) + return true; + + adev->flags.initialized = false; + return false; +} + static bool acpi_scan_handler_matching(struct acpi_scan_handler *handler, char *idstr, const struct acpi_device_id **matchid) @@ -1772,7 +1957,7 @@ static void acpi_scan_init_hotplug(acpi_handle handle, int type) */ list_for_each_entry(hwid, &pnp.ids, list) { handler = acpi_scan_match_handler(hwid->id, NULL); - if (handler && !handler->hotplug.ignore) { + if (handler) { acpi_install_notify_handler(handle, ACPI_SYSTEM_NOTIFY, acpi_hotplug_notify_cb, handler); break; @@ -1806,18 +1991,6 @@ static acpi_status acpi_bus_check_add(acpi_handle handle, u32 lvl_not_used, acpi_scan_init_hotplug(handle, type); - if (!(sta & ACPI_STA_DEVICE_PRESENT) && - !(sta & ACPI_STA_DEVICE_FUNCTIONING)) { - struct acpi_device_wakeup wakeup; - - if (acpi_has_method(handle, "_PRW")) { - acpi_bus_extract_wakeup_device_power_package(handle, - &wakeup); - acpi_power_resources_list_free(&wakeup.resources); - } - return AE_CTRL_DEPTH; - } - acpi_add_single_object(&device, handle, type, sta); if (!device) return AE_CTRL_DEPTH; @@ -1852,36 +2025,40 @@ static int acpi_scan_attach_handler(struct acpi_device *device) return ret; } -static acpi_status acpi_bus_device_attach(acpi_handle handle, u32 lvl_not_used, - void *not_used, void **ret_not_used) +static void acpi_bus_attach(struct acpi_device *device) { - struct acpi_device *device; - unsigned long long sta_not_used; + struct acpi_device *child; int ret; - /* - * Ignore errors ignored by acpi_bus_check_add() to avoid terminating - * namespace walks prematurely. - */ - if (acpi_bus_type_and_status(handle, &ret, &sta_not_used)) - return AE_OK; - - if (acpi_bus_get_device(handle, &device)) - return AE_CTRL_DEPTH; - + acpi_bus_get_status(device); + /* Skip devices that are not present. */ + if (!acpi_device_is_present(device)) { + device->flags.visited = false; + return; + } if (device->handler) - return AE_OK; + goto ok; + if (!device->flags.initialized) { + acpi_bus_update_power(device, NULL); + device->flags.initialized = true; + } + device->flags.visited = false; ret = acpi_scan_attach_handler(device); if (ret < 0) - return AE_CTRL_DEPTH; + return; device->flags.match_driver = true; - if (ret > 0) - return AE_OK; + if (!ret) { + ret = device_attach(&device->dev); + if (ret < 0) + return; + } + device->flags.visited = true; - ret = device_attach(&device->dev); - return ret >= 0 ? AE_OK : AE_CTRL_DEPTH; + ok: + list_for_each_entry(child, &device->children, node) + acpi_bus_attach(child); } /** @@ -1901,75 +2078,48 @@ static acpi_status acpi_bus_device_attach(acpi_handle handle, u32 lvl_not_used, int acpi_bus_scan(acpi_handle handle) { void *device = NULL; - int error = 0; if (ACPI_SUCCESS(acpi_bus_check_add(handle, 0, NULL, &device))) acpi_walk_namespace(ACPI_TYPE_ANY, handle, ACPI_UINT32_MAX, acpi_bus_check_add, NULL, NULL, &device); - if (!device) - error = -ENODEV; - else if (ACPI_SUCCESS(acpi_bus_device_attach(handle, 0, NULL, NULL))) - acpi_walk_namespace(ACPI_TYPE_ANY, handle, ACPI_UINT32_MAX, - acpi_bus_device_attach, NULL, NULL, NULL); - - return error; -} -EXPORT_SYMBOL(acpi_bus_scan); - -static acpi_status acpi_bus_device_detach(acpi_handle handle, u32 lvl_not_used, - void *not_used, void **ret_not_used) -{ - struct acpi_device *device = NULL; - - if (!acpi_bus_get_device(handle, &device)) { - struct acpi_scan_handler *dev_handler = device->handler; - - if (dev_handler) { - if (dev_handler->detach) - dev_handler->detach(device); - - device->handler = NULL; - } else { - device_release_driver(&device->dev); - } + if (device) { + acpi_bus_attach(device); + return 0; } - return AE_OK; -} - -static acpi_status acpi_bus_remove(acpi_handle handle, u32 lvl_not_used, - void *not_used, void **ret_not_used) -{ - struct acpi_device *device = NULL; - - if (!acpi_bus_get_device(handle, &device)) - acpi_device_unregister(device); - - return AE_OK; + return -ENODEV; } +EXPORT_SYMBOL(acpi_bus_scan); /** - * acpi_bus_trim - Remove ACPI device node and all of its descendants - * @start: Root of the ACPI device nodes subtree to remove. + * acpi_bus_trim - Detach scan handlers and drivers from ACPI device objects. + * @adev: Root of the ACPI namespace scope to walk. * * Must be called under acpi_scan_lock. */ -void acpi_bus_trim(struct acpi_device *start) +void acpi_bus_trim(struct acpi_device *adev) { + struct acpi_scan_handler *handler = adev->handler; + struct acpi_device *child; + + list_for_each_entry_reverse(child, &adev->children, node) + acpi_bus_trim(child); + + if (handler) { + if (handler->detach) + handler->detach(adev); + + adev->handler = NULL; + } else { + device_release_driver(&adev->dev); + } /* - * Execute acpi_bus_device_detach() as a post-order callback to detach - * all ACPI drivers from the device nodes being removed. - */ - acpi_walk_namespace(ACPI_TYPE_ANY, start->handle, ACPI_UINT32_MAX, NULL, - acpi_bus_device_detach, NULL, NULL); - acpi_bus_device_detach(start->handle, 0, NULL, NULL); - /* - * Execute acpi_bus_remove() as a post-order callback to remove device - * nodes in the given namespace scope. + * Most likely, the device is going away, so put it into D3cold before + * that. */ - acpi_walk_namespace(ACPI_TYPE_ANY, start->handle, ACPI_UINT32_MAX, NULL, - acpi_bus_remove, NULL, NULL); - acpi_bus_remove(start->handle, 0, NULL, NULL); + acpi_device_set_power(adev, ACPI_STATE_D3_COLD); + adev->flags.initialized = false; + adev->flags.visited = false; } EXPORT_SYMBOL_GPL(acpi_bus_trim); @@ -2047,14 +2197,14 @@ int __init acpi_scan_init(void) result = acpi_bus_scan_fixed(); if (result) { - acpi_device_unregister(acpi_root); + acpi_detach_data(acpi_root->handle, acpi_scan_drop_device); + acpi_device_del(acpi_root); + put_device(&acpi_root->dev); goto out; } acpi_update_all_gpes(); - acpi_pci_root_hp_init(); - out: mutex_unlock(&acpi_scan_lock); return result; diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c index 721e949e606e..b718806657cd 100644 --- a/drivers/acpi/sleep.c +++ b/drivers/acpi/sleep.c @@ -18,12 +18,8 @@ #include <linux/reboot.h> #include <linux/acpi.h> #include <linux/module.h> - #include <asm/io.h> -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> - #include "internal.h" #include "sleep.h" @@ -670,11 +666,8 @@ static void acpi_hibernation_leave(void) /* Reprogram control registers */ acpi_leave_sleep_state_prep(ACPI_STATE_S4); /* Check the hardware signature */ - if (facs && s4_hardware_signature != facs->hardware_signature) { - printk(KERN_EMERG "ACPI: Hardware changed while hibernated, " - "cannot resume!\n"); - panic("ACPI S4 hardware signature mismatch"); - } + if (facs && s4_hardware_signature != facs->hardware_signature) + pr_crit("ACPI: Hardware changed while hibernated, success doubtful!\n"); /* Restore the NVS memory area */ suspend_nvs_restore(); /* Allow EC transactions to happen. */ @@ -806,9 +799,6 @@ int __init acpi_sleep_init(void) char *pos = supported; int i; - if (acpi_disabled) - return 0; - acpi_sleep_dmi_check(); sleep_states[ACPI_STATE_S0] = 1; diff --git a/drivers/acpi/sysfs.c b/drivers/acpi/sysfs.c index 6dbc3ca45223..443dc9366052 100644 --- a/drivers/acpi/sysfs.c +++ b/drivers/acpi/sysfs.c @@ -5,7 +5,7 @@ #include <linux/init.h> #include <linux/kernel.h> #include <linux/moduleparam.h> -#include <acpi/acpi_drivers.h> +#include <linux/acpi.h> #include "internal.h" diff --git a/drivers/acpi/tables.c b/drivers/acpi/tables.c index d67a1fe07f0e..5837f857ac2e 100644 --- a/drivers/acpi/tables.c +++ b/drivers/acpi/tables.c @@ -278,12 +278,13 @@ acpi_table_parse_madt(enum acpi_madt_type id, /** * acpi_table_parse - find table with @id, run @handler on it - * * @id: table id to find * @handler: handler to run * * Scan the ACPI System Descriptor Table (STD) for a table matching @id, - * run @handler on it. Return 0 if table found, return on if not. + * run @handler on it. + * + * Return 0 if table found, -errno if not. */ int __init acpi_table_parse(char *id, acpi_tbl_table_handler handler) { @@ -293,7 +294,7 @@ int __init acpi_table_parse(char *id, acpi_tbl_table_handler handler) if (acpi_disabled) return -ENODEV; - if (!handler) + if (!id || !handler) return -EINVAL; if (strncmp(id, ACPI_SIG_MADT, 4) == 0) @@ -306,7 +307,7 @@ int __init acpi_table_parse(char *id, acpi_tbl_table_handler handler) early_acpi_os_unmap_memory(table, tbl_size); return 0; } else - return 1; + return -ENODEV; } /* @@ -351,7 +352,7 @@ int __init acpi_table_init(void) status = acpi_initialize_tables(initial_tables, ACPI_MAX_TABLES, 0); if (ACPI_FAILURE(status)) - return 1; + return -EINVAL; check_multiple_madt(); return 0; diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c index 0d9f46b5ae6d..8349a555b92b 100644 --- a/drivers/acpi/thermal.c +++ b/drivers/acpi/thermal.c @@ -41,10 +41,9 @@ #include <linux/kmod.h> #include <linux/reboot.h> #include <linux/device.h> -#include <asm/uaccess.h> #include <linux/thermal.h> -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> +#include <linux/acpi.h> +#include <asm/uaccess.h> #define PREFIX "ACPI: " @@ -862,7 +861,7 @@ acpi_thermal_unbind_cooling_device(struct thermal_zone_device *thermal, return acpi_thermal_cooling_device_cb(thermal, cdev, false); } -static const struct thermal_zone_device_ops acpi_thermal_zone_ops = { +static struct thermal_zone_device_ops acpi_thermal_zone_ops = { .bind = acpi_thermal_bind_cooling_device, .unbind = acpi_thermal_unbind_cooling_device, .get_temp = thermal_get_temp, diff --git a/drivers/acpi/utils.c b/drivers/acpi/utils.c index 6d408bfbbb1d..0347a37eb438 100644 --- a/drivers/acpi/utils.c +++ b/drivers/acpi/utils.c @@ -30,8 +30,6 @@ #include <linux/types.h> #include <linux/hardirq.h> #include <linux/acpi.h> -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> #include "internal.h" @@ -574,3 +572,100 @@ acpi_status acpi_evaluate_lck(acpi_handle handle, int lock) return status; } + +/** + * acpi_evaluate_dsm - evaluate device's _DSM method + * @handle: ACPI device handle + * @uuid: UUID of requested functions, should be 16 bytes + * @rev: revision number of requested function + * @func: requested function number + * @argv4: the function specific parameter + * + * Evaluate device's _DSM method with specified UUID, revision id and + * function number. Caller needs to free the returned object. + * + * Though ACPI defines the fourth parameter for _DSM should be a package, + * some old BIOSes do expect a buffer or an integer etc. + */ +union acpi_object * +acpi_evaluate_dsm(acpi_handle handle, const u8 *uuid, int rev, int func, + union acpi_object *argv4) +{ + acpi_status ret; + struct acpi_buffer buf = {ACPI_ALLOCATE_BUFFER, NULL}; + union acpi_object params[4]; + struct acpi_object_list input = { + .count = 4, + .pointer = params, + }; + + params[0].type = ACPI_TYPE_BUFFER; + params[0].buffer.length = 16; + params[0].buffer.pointer = (char *)uuid; + params[1].type = ACPI_TYPE_INTEGER; + params[1].integer.value = rev; + params[2].type = ACPI_TYPE_INTEGER; + params[2].integer.value = func; + if (argv4) { + params[3] = *argv4; + } else { + params[3].type = ACPI_TYPE_PACKAGE; + params[3].package.count = 0; + params[3].package.elements = NULL; + } + + ret = acpi_evaluate_object(handle, "_DSM", &input, &buf); + if (ACPI_SUCCESS(ret)) + return (union acpi_object *)buf.pointer; + + if (ret != AE_NOT_FOUND) + acpi_handle_warn(handle, + "failed to evaluate _DSM (0x%x)\n", ret); + + return NULL; +} +EXPORT_SYMBOL(acpi_evaluate_dsm); + +/** + * acpi_check_dsm - check if _DSM method supports requested functions. + * @handle: ACPI device handle + * @uuid: UUID of requested functions, should be 16 bytes at least + * @rev: revision number of requested functions + * @funcs: bitmap of requested functions + * @exclude: excluding special value, used to support i915 and nouveau + * + * Evaluate device's _DSM method to check whether it supports requested + * functions. Currently only support 64 functions at maximum, should be + * enough for now. + */ +bool acpi_check_dsm(acpi_handle handle, const u8 *uuid, int rev, u64 funcs) +{ + int i; + u64 mask = 0; + union acpi_object *obj; + + if (funcs == 0) + return false; + + obj = acpi_evaluate_dsm(handle, uuid, rev, 0, NULL); + if (!obj) + return false; + + /* For compatibility, old BIOSes may return an integer */ + if (obj->type == ACPI_TYPE_INTEGER) + mask = obj->integer.value; + else if (obj->type == ACPI_TYPE_BUFFER) + for (i = 0; i < obj->buffer.length && i < 8; i++) + mask |= (((u8)obj->buffer.pointer[i]) << (i * 8)); + ACPI_FREE(obj); + + /* + * Bit 0 indicates whether there's support for any functions other than + * function 0 for the specified UUID and revision. + */ + if ((mask & 0x1) && (mask & funcs) == funcs) + return true; + + return false; +} +EXPORT_SYMBOL(acpi_check_dsm); diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c index 995e91bcb97b..b727d105046d 100644 --- a/drivers/acpi/video.c +++ b/drivers/acpi/video.c @@ -37,12 +37,11 @@ #include <linux/pci.h> #include <linux/pci_ids.h> #include <linux/slab.h> -#include <asm/uaccess.h> #include <linux/dmi.h> -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> #include <linux/suspend.h> +#include <linux/acpi.h> #include <acpi/video.h> +#include <asm/uaccess.h> #include "internal.h" diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c index 84875fd4c74f..f0447d3daf2c 100644 --- a/drivers/acpi/video_detect.c +++ b/drivers/acpi/video_detect.c @@ -50,7 +50,7 @@ static bool acpi_video_caps_checked; static acpi_status acpi_backlight_cap_match(acpi_handle handle, u32 level, void *context, - void **retyurn_value) + void **return_value) { long *cap = context; diff --git a/drivers/acpi/wakeup.c b/drivers/acpi/wakeup.c index 7bfbe40bc43b..1638401ab282 100644 --- a/drivers/acpi/wakeup.c +++ b/drivers/acpi/wakeup.c @@ -5,7 +5,6 @@ #include <linux/init.h> #include <linux/acpi.h> -#include <acpi/acpi_drivers.h> #include <linux/kernel.h> #include <linux/types.h> diff --git a/drivers/ata/libata-acpi.c b/drivers/ata/libata-acpi.c index 4372cfa883c9..9e69a5308693 100644 --- a/drivers/ata/libata-acpi.c +++ b/drivers/ata/libata-acpi.c @@ -20,8 +20,6 @@ #include <scsi/scsi_device.h> #include "libata.h" -#include <acpi/acpi_bus.h> - unsigned int ata_acpi_gtf_filter = ATA_ACPI_FILTER_DEFAULT; module_param_named(acpi_gtf_filter, ata_acpi_gtf_filter, int, 0644); MODULE_PARM_DESC(acpi_gtf_filter, "filter mask for ACPI _GTF commands, set to filter out (0x1=set xfermode, 0x2=lock/freeze lock, 0x4=DIPM, 0x8=FPDMA non-zero offset, 0x10=FPDMA DMA Setup FIS auto-activate)"); @@ -180,12 +178,12 @@ static const struct acpi_dock_ops ata_acpi_ap_dock_ops = { /* bind acpi handle to pata port */ void ata_acpi_bind_port(struct ata_port *ap) { - acpi_handle host_handle = ACPI_HANDLE(ap->host->dev); + struct acpi_device *host_companion = ACPI_COMPANION(ap->host->dev); - if (libata_noacpi || ap->flags & ATA_FLAG_ACPI_SATA || !host_handle) + if (libata_noacpi || ap->flags & ATA_FLAG_ACPI_SATA || !host_companion) return; - acpi_preset_companion(&ap->tdev, host_handle, ap->port_no); + acpi_preset_companion(&ap->tdev, host_companion, ap->port_no); if (ata_acpi_gtm(ap, &ap->__acpi_init_gtm) == 0) ap->pflags |= ATA_PFLAG_INIT_GTM_VALID; @@ -198,17 +196,17 @@ void ata_acpi_bind_port(struct ata_port *ap) void ata_acpi_bind_dev(struct ata_device *dev) { struct ata_port *ap = dev->link->ap; - acpi_handle port_handle = ACPI_HANDLE(&ap->tdev); - acpi_handle host_handle = ACPI_HANDLE(ap->host->dev); - acpi_handle parent_handle; + struct acpi_device *port_companion = ACPI_COMPANION(&ap->tdev); + struct acpi_device *host_companion = ACPI_COMPANION(ap->host->dev); + struct acpi_device *parent; u64 adr; /* - * For both sata/pata devices, host handle is required. - * For pata device, port handle is also required. + * For both sata/pata devices, host companion device is required. + * For pata device, port companion device is also required. */ - if (libata_noacpi || !host_handle || - (!(ap->flags & ATA_FLAG_ACPI_SATA) && !port_handle)) + if (libata_noacpi || !host_companion || + (!(ap->flags & ATA_FLAG_ACPI_SATA) && !port_companion)) return; if (ap->flags & ATA_FLAG_ACPI_SATA) { @@ -216,13 +214,13 @@ void ata_acpi_bind_dev(struct ata_device *dev) adr = SATA_ADR(ap->port_no, NO_PORT_MULT); else adr = SATA_ADR(ap->port_no, dev->link->pmp); - parent_handle = host_handle; + parent = host_companion; } else { adr = dev->devno; - parent_handle = port_handle; + parent = port_companion; } - acpi_preset_companion(&dev->tdev, parent_handle, adr); + acpi_preset_companion(&dev->tdev, parent, adr); register_hotplug_dock_device(ata_dev_acpi_handle(dev), &ata_acpi_dev_dock_ops, dev, NULL, NULL); diff --git a/drivers/ata/pata_acpi.c b/drivers/ata/pata_acpi.c index 73212c9c6d5b..62c9ac80c6e9 100644 --- a/drivers/ata/pata_acpi.c +++ b/drivers/ata/pata_acpi.c @@ -12,11 +12,10 @@ #include <linux/delay.h> #include <linux/device.h> #include <linux/gfp.h> -#include <scsi/scsi_host.h> -#include <acpi/acpi_bus.h> - +#include <linux/acpi.h> #include <linux/libata.h> #include <linux/ata.h> +#include <scsi/scsi_host.h> #define DRV_NAME "pata_acpi" #define DRV_VERSION "0.2.3" diff --git a/drivers/base/Makefile b/drivers/base/Makefile index 94e8a80e87f8..d08c9d3b1d37 100644 --- a/drivers/base/Makefile +++ b/drivers/base/Makefile @@ -4,7 +4,7 @@ obj-y := core.o bus.o dd.o syscore.o \ driver.o class.o platform.o \ cpu.o firmware.o init.o map.o devres.o \ attribute_container.o transport_class.o \ - topology.o + topology.o container.o obj-$(CONFIG_DEVTMPFS) += devtmpfs.o obj-$(CONFIG_DMA_CMA) += dma-contiguous.o obj-y += power/ diff --git a/drivers/base/base.h b/drivers/base/base.h index 2cbc6774f4cd..24f424249d9b 100644 --- a/drivers/base/base.h +++ b/drivers/base/base.h @@ -100,6 +100,7 @@ static inline int hypervisor_init(void) { return 0; } #endif extern int platform_bus_init(void); extern void cpu_dev_init(void); +extern void container_dev_init(void); struct kobject *virtual_device_parent(struct device *dev); diff --git a/drivers/base/container.c b/drivers/base/container.c new file mode 100644 index 000000000000..ecbfbe2e908f --- /dev/null +++ b/drivers/base/container.c @@ -0,0 +1,44 @@ +/* + * System bus type for containers. + * + * Copyright (C) 2013, Intel Corporation + * Author: Rafael J. Wysocki <rafael.j.wysocki@intel.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/container.h> + +#include "base.h" + +#define CONTAINER_BUS_NAME "container" + +static int trivial_online(struct device *dev) +{ + return 0; +} + +static int container_offline(struct device *dev) +{ + struct container_dev *cdev = to_container_dev(dev); + + return cdev->offline ? cdev->offline(cdev) : 0; +} + +struct bus_type container_subsys = { + .name = CONTAINER_BUS_NAME, + .dev_name = CONTAINER_BUS_NAME, + .online = trivial_online, + .offline = container_offline, +}; + +void __init container_dev_init(void) +{ + int ret; + + ret = subsys_system_register(&container_subsys, NULL); + if (ret) + pr_err("%s() failed: %d\n", __func__, ret); +} diff --git a/drivers/base/init.c b/drivers/base/init.c index c16f0b808a17..da033d3bab3c 100644 --- a/drivers/base/init.c +++ b/drivers/base/init.c @@ -33,4 +33,5 @@ void __init driver_init(void) platform_bus_init(); cpu_dev_init(); memory_dev_init(); + container_dev_init(); } diff --git a/drivers/base/platform.c b/drivers/base/platform.c index 3a94b799f166..bc78848dd59a 100644 --- a/drivers/base/platform.c +++ b/drivers/base/platform.c @@ -677,7 +677,17 @@ static ssize_t modalias_show(struct device *dev, struct device_attribute *a, char *buf) { struct platform_device *pdev = to_platform_device(dev); - int len = snprintf(buf, PAGE_SIZE, "platform:%s\n", pdev->name); + int len; + + len = of_device_get_modalias(dev, buf, PAGE_SIZE -1); + if (len != -ENODEV) + return len; + + len = acpi_device_modalias(dev, buf, PAGE_SIZE -1); + if (len != -ENODEV) + return len; + + len = snprintf(buf, PAGE_SIZE, "platform:%s\n", pdev->name); return (len >= PAGE_SIZE) ? (PAGE_SIZE - 1) : len; } @@ -699,6 +709,10 @@ static int platform_uevent(struct device *dev, struct kobj_uevent_env *env) if (rc != -ENODEV) return rc; + rc = acpi_device_uevent_modalias(dev, env); + if (rc != -ENODEV) + return rc; + add_uevent_var(env, "MODALIAS=%s%s", PLATFORM_MODULE_PREFIX, pdev->name); return 0; diff --git a/drivers/base/power/clock_ops.c b/drivers/base/power/clock_ops.c index 9d8fde709390..e870bbe9ec4e 100644 --- a/drivers/base/power/clock_ops.c +++ b/drivers/base/power/clock_ops.c @@ -33,6 +33,21 @@ struct pm_clock_entry { }; /** + * pm_clk_enable - Enable a clock, reporting any errors + * @dev: The device for the given clock + * @clk: The clock being enabled. + */ +static inline int __pm_clk_enable(struct device *dev, struct clk *clk) +{ + int ret = clk_enable(clk); + if (ret) + dev_err(dev, "%s: failed to enable clk %p, error %d\n", + __func__, clk, ret); + + return ret; +} + +/** * pm_clk_acquire - Acquire a device clock. * @dev: Device whose clock is to be acquired. * @ce: PM clock entry corresponding to the clock. @@ -43,6 +58,7 @@ static void pm_clk_acquire(struct device *dev, struct pm_clock_entry *ce) if (IS_ERR(ce->clk)) { ce->status = PCE_STATUS_ERROR; } else { + clk_prepare(ce->clk); ce->status = PCE_STATUS_ACQUIRED; dev_dbg(dev, "Clock %s managed by runtime PM.\n", ce->con_id); } @@ -99,10 +115,12 @@ static void __pm_clk_remove(struct pm_clock_entry *ce) if (ce->status < PCE_STATUS_ERROR) { if (ce->status == PCE_STATUS_ENABLED) - clk_disable_unprepare(ce->clk); + clk_disable(ce->clk); - if (ce->status >= PCE_STATUS_ACQUIRED) + if (ce->status >= PCE_STATUS_ACQUIRED) { + clk_unprepare(ce->clk); clk_put(ce->clk); + } } kfree(ce->con_id); @@ -249,6 +267,7 @@ int pm_clk_resume(struct device *dev) struct pm_subsys_data *psd = dev_to_psd(dev); struct pm_clock_entry *ce; unsigned long flags; + int ret; dev_dbg(dev, "%s()\n", __func__); @@ -259,8 +278,9 @@ int pm_clk_resume(struct device *dev) list_for_each_entry(ce, &psd->clock_list, node) { if (ce->status < PCE_STATUS_ERROR) { - clk_enable(ce->clk); - ce->status = PCE_STATUS_ENABLED; + ret = __pm_clk_enable(dev, ce->clk); + if (!ret) + ce->status = PCE_STATUS_ENABLED; } } @@ -376,7 +396,7 @@ int pm_clk_resume(struct device *dev) spin_lock_irqsave(&psd->lock, flags); list_for_each_entry(ce, &psd->clock_list, node) - clk_enable(ce->clk); + __pm_clk_enable(dev, ce->clk); spin_unlock_irqrestore(&psd->lock, flags); diff --git a/drivers/base/power/generic_ops.c b/drivers/base/power/generic_ops.c index 5ee030a864f9..a2e55bfdf572 100644 --- a/drivers/base/power/generic_ops.c +++ b/drivers/base/power/generic_ops.c @@ -10,7 +10,7 @@ #include <linux/pm_runtime.h> #include <linux/export.h> -#ifdef CONFIG_PM_RUNTIME +#ifdef CONFIG_PM /** * pm_generic_runtime_suspend - Generic runtime suspend callback for subsystems. * @dev: Device to suspend. @@ -48,7 +48,7 @@ int pm_generic_runtime_resume(struct device *dev) return ret; } EXPORT_SYMBOL_GPL(pm_generic_runtime_resume); -#endif /* CONFIG_PM_RUNTIME */ +#endif /* CONFIG_PM */ #ifdef CONFIG_PM_SLEEP /** diff --git a/drivers/char/apm-emulation.c b/drivers/char/apm-emulation.c index 46118f845948..dd9dfa15e9d1 100644 --- a/drivers/char/apm-emulation.c +++ b/drivers/char/apm-emulation.c @@ -531,6 +531,7 @@ static int apm_suspend_notifier(struct notifier_block *nb, { struct apm_user *as; int err; + unsigned long apm_event; /* short-cut emergency suspends */ if (atomic_read(&userspace_notification_inhibit)) @@ -538,6 +539,9 @@ static int apm_suspend_notifier(struct notifier_block *nb, switch (event) { case PM_SUSPEND_PREPARE: + case PM_HIBERNATION_PREPARE: + apm_event = (event == PM_SUSPEND_PREPARE) ? + APM_USER_SUSPEND : APM_USER_HIBERNATION; /* * Queue an event to all "writer" users that we want * to suspend and need their ack. @@ -550,7 +554,7 @@ static int apm_suspend_notifier(struct notifier_block *nb, as->writer && as->suser) { as->suspend_state = SUSPEND_PENDING; atomic_inc(&suspend_acks_pending); - queue_add_event(&as->queue, APM_USER_SUSPEND); + queue_add_event(&as->queue, apm_event); } } @@ -601,11 +605,14 @@ static int apm_suspend_notifier(struct notifier_block *nb, return notifier_from_errno(err); case PM_POST_SUSPEND: + case PM_POST_HIBERNATION: + apm_event = (event == PM_POST_SUSPEND) ? + APM_NORMAL_RESUME : APM_HIBERNATION_RESUME; /* * Anyone on the APM queues will think we're still suspended. * Send a message so everyone knows we're now awake again. */ - queue_event(APM_NORMAL_RESUME); + queue_event(apm_event); /* * Finally, wake up anyone who is sleeping on the suspend. diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c index 5d9c31dfc905..d5d4cd82b9f7 100644 --- a/drivers/char/hpet.c +++ b/drivers/char/hpet.c @@ -34,15 +34,12 @@ #include <linux/uaccess.h> #include <linux/slab.h> #include <linux/io.h> - +#include <linux/acpi.h> +#include <linux/hpet.h> #include <asm/current.h> #include <asm/irq.h> #include <asm/div64.h> -#include <linux/acpi.h> -#include <acpi/acpi_bus.h> -#include <linux/hpet.h> - /* * The High Precision Event Timer driver. * This driver is closely modelled after the rtc.c driver. diff --git a/drivers/char/tpm/tpm_acpi.c b/drivers/char/tpm/tpm_acpi.c index 64420b3396a2..b9a57fa4b710 100644 --- a/drivers/char/tpm/tpm_acpi.c +++ b/drivers/char/tpm/tpm_acpi.c @@ -23,7 +23,7 @@ #include <linux/security.h> #include <linux/module.h> #include <linux/slab.h> -#include <acpi/acpi.h> +#include <linux/acpi.h> #include "tpm.h" #include "tpm_eventlog.h" diff --git a/drivers/char/tpm/tpm_ppi.c b/drivers/char/tpm/tpm_ppi.c index e1f3337a0cf9..b3ea223585bd 100644 --- a/drivers/char/tpm/tpm_ppi.c +++ b/drivers/char/tpm/tpm_ppi.c @@ -1,16 +1,6 @@ #include <linux/acpi.h> -#include <acpi/acpi_drivers.h> #include "tpm.h" -static const u8 tpm_ppi_uuid[] = { - 0xA6, 0xFA, 0xDD, 0x3D, - 0x1B, 0x36, - 0xB4, 0x4E, - 0xA4, 0x24, - 0x8D, 0x10, 0x08, 0x9D, 0x16, 0x53 -}; -static char *tpm_device_name = "TPM"; - #define TPM_PPI_REVISION_ID 1 #define TPM_PPI_FN_VERSION 1 #define TPM_PPI_FN_SUBREQ 2 @@ -24,250 +14,178 @@ static char *tpm_device_name = "TPM"; #define PPI_VS_REQ_END 255 #define PPI_VERSION_LEN 3 +static const u8 tpm_ppi_uuid[] = { + 0xA6, 0xFA, 0xDD, 0x3D, + 0x1B, 0x36, + 0xB4, 0x4E, + 0xA4, 0x24, + 0x8D, 0x10, 0x08, 0x9D, 0x16, 0x53 +}; + +static char tpm_ppi_version[PPI_VERSION_LEN + 1]; +static acpi_handle tpm_ppi_handle; + static acpi_status ppi_callback(acpi_handle handle, u32 level, void *context, void **return_value) { - acpi_status status = AE_OK; - struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; + union acpi_object *obj; - if (ACPI_SUCCESS(acpi_get_name(handle, ACPI_FULL_PATHNAME, &buffer))) { - if (strstr(buffer.pointer, context) != NULL) { - *return_value = handle; - status = AE_CTRL_TERMINATE; - } - kfree(buffer.pointer); + if (!acpi_check_dsm(handle, tpm_ppi_uuid, TPM_PPI_REVISION_ID, + 1 << TPM_PPI_FN_VERSION)) + return AE_OK; + + /* Cache version string */ + obj = acpi_evaluate_dsm_typed(handle, tpm_ppi_uuid, + TPM_PPI_REVISION_ID, TPM_PPI_FN_VERSION, + NULL, ACPI_TYPE_STRING); + if (obj) { + strlcpy(tpm_ppi_version, obj->string.pointer, + PPI_VERSION_LEN + 1); + ACPI_FREE(obj); } - return status; + *return_value = handle; + + return AE_CTRL_TERMINATE; } -static inline void ppi_assign_params(union acpi_object params[4], - u64 function_num) +static inline union acpi_object * +tpm_eval_dsm(int func, acpi_object_type type, union acpi_object *argv4) { - params[0].type = ACPI_TYPE_BUFFER; - params[0].buffer.length = sizeof(tpm_ppi_uuid); - params[0].buffer.pointer = (char *)tpm_ppi_uuid; - params[1].type = ACPI_TYPE_INTEGER; - params[1].integer.value = TPM_PPI_REVISION_ID; - params[2].type = ACPI_TYPE_INTEGER; - params[2].integer.value = function_num; - params[3].type = ACPI_TYPE_PACKAGE; - params[3].package.count = 0; - params[3].package.elements = NULL; + BUG_ON(!tpm_ppi_handle); + return acpi_evaluate_dsm_typed(tpm_ppi_handle, tpm_ppi_uuid, + TPM_PPI_REVISION_ID, func, argv4, type); } static ssize_t tpm_show_ppi_version(struct device *dev, struct device_attribute *attr, char *buf) { - acpi_handle handle; - acpi_status status; - struct acpi_object_list input; - struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL }; - union acpi_object params[4]; - union acpi_object *obj; - - input.count = 4; - ppi_assign_params(params, TPM_PPI_FN_VERSION); - input.pointer = params; - status = acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, - ACPI_UINT32_MAX, ppi_callback, NULL, - tpm_device_name, &handle); - if (ACPI_FAILURE(status)) - return -ENXIO; - - status = acpi_evaluate_object_typed(handle, "_DSM", &input, &output, - ACPI_TYPE_STRING); - if (ACPI_FAILURE(status)) - return -ENOMEM; - obj = (union acpi_object *)output.pointer; - status = scnprintf(buf, PAGE_SIZE, "%s\n", obj->string.pointer); - kfree(output.pointer); - return status; + return scnprintf(buf, PAGE_SIZE, "%s\n", tpm_ppi_version); } static ssize_t tpm_show_ppi_request(struct device *dev, struct device_attribute *attr, char *buf) { - acpi_handle handle; - acpi_status status; - struct acpi_object_list input; - struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL }; - union acpi_object params[4]; - union acpi_object *ret_obj; - - input.count = 4; - ppi_assign_params(params, TPM_PPI_FN_GETREQ); - input.pointer = params; - status = acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, - ACPI_UINT32_MAX, ppi_callback, NULL, - tpm_device_name, &handle); - if (ACPI_FAILURE(status)) + ssize_t size = -EINVAL; + union acpi_object *obj; + + obj = tpm_eval_dsm(TPM_PPI_FN_GETREQ, ACPI_TYPE_PACKAGE, NULL); + if (!obj) return -ENXIO; - status = acpi_evaluate_object_typed(handle, "_DSM", &input, &output, - ACPI_TYPE_PACKAGE); - if (ACPI_FAILURE(status)) - return -ENOMEM; /* * output.pointer should be of package type, including two integers. * The first is function return code, 0 means success and 1 means * error. The second is pending TPM operation requested by the OS, 0 * means none and >0 means operation value. */ - ret_obj = ((union acpi_object *)output.pointer)->package.elements; - if (ret_obj->type == ACPI_TYPE_INTEGER) { - if (ret_obj->integer.value) { - status = -EFAULT; - goto cleanup; - } - ret_obj++; - if (ret_obj->type == ACPI_TYPE_INTEGER) - status = scnprintf(buf, PAGE_SIZE, "%llu\n", - ret_obj->integer.value); + if (obj->package.count == 2 && + obj->package.elements[0].type == ACPI_TYPE_INTEGER && + obj->package.elements[1].type == ACPI_TYPE_INTEGER) { + if (obj->package.elements[0].integer.value) + size = -EFAULT; else - status = -EINVAL; - } else { - status = -EINVAL; + size = scnprintf(buf, PAGE_SIZE, "%llu\n", + obj->package.elements[1].integer.value); } -cleanup: - kfree(output.pointer); - return status; + + ACPI_FREE(obj); + + return size; } static ssize_t tpm_store_ppi_request(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - char version[PPI_VERSION_LEN + 1]; - acpi_handle handle; - acpi_status status; - struct acpi_object_list input; - struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL }; - union acpi_object params[4]; - union acpi_object obj; u32 req; u64 ret; + int func = TPM_PPI_FN_SUBREQ; + union acpi_object *obj, tmp; + union acpi_object argv4 = ACPI_INIT_DSM_ARGV4(1, &tmp); - input.count = 4; - ppi_assign_params(params, TPM_PPI_FN_VERSION); - input.pointer = params; - status = acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, - ACPI_UINT32_MAX, ppi_callback, NULL, - tpm_device_name, &handle); - if (ACPI_FAILURE(status)) - return -ENXIO; - - status = acpi_evaluate_object_typed(handle, "_DSM", &input, &output, - ACPI_TYPE_STRING); - if (ACPI_FAILURE(status)) - return -ENOMEM; - strlcpy(version, - ((union acpi_object *)output.pointer)->string.pointer, - PPI_VERSION_LEN + 1); - kfree(output.pointer); - output.length = ACPI_ALLOCATE_BUFFER; - output.pointer = NULL; /* * the function to submit TPM operation request to pre-os environment * is updated with function index from SUBREQ to SUBREQ2 since PPI * version 1.1 */ - if (strcmp(version, "1.1") == -1) - params[2].integer.value = TPM_PPI_FN_SUBREQ; - else - params[2].integer.value = TPM_PPI_FN_SUBREQ2; + if (acpi_check_dsm(tpm_ppi_handle, tpm_ppi_uuid, TPM_PPI_REVISION_ID, + 1 << TPM_PPI_FN_SUBREQ2)) + func = TPM_PPI_FN_SUBREQ2; + /* * PPI spec defines params[3].type as ACPI_TYPE_PACKAGE. Some BIOS * accept buffer/string/integer type, but some BIOS accept buffer/ * string/package type. For PPI version 1.0 and 1.1, use buffer type * for compatibility, and use package type since 1.2 according to spec. */ - if (strcmp(version, "1.2") == -1) { - params[3].type = ACPI_TYPE_BUFFER; - params[3].buffer.length = sizeof(req); - sscanf(buf, "%d", &req); - params[3].buffer.pointer = (char *)&req; + if (strcmp(tpm_ppi_version, "1.2") < 0) { + if (sscanf(buf, "%d", &req) != 1) + return -EINVAL; + argv4.type = ACPI_TYPE_BUFFER; + argv4.buffer.length = sizeof(req); + argv4.buffer.pointer = (u8 *)&req; + } else { + tmp.type = ACPI_TYPE_INTEGER; + if (sscanf(buf, "%llu", &tmp.integer.value) != 1) + return -EINVAL; + } + + obj = tpm_eval_dsm(func, ACPI_TYPE_INTEGER, &argv4); + if (!obj) { + return -ENXIO; } else { - params[3].package.count = 1; - obj.type = ACPI_TYPE_INTEGER; - sscanf(buf, "%llu", &obj.integer.value); - params[3].package.elements = &obj; + ret = obj->integer.value; + ACPI_FREE(obj); } - status = acpi_evaluate_object_typed(handle, "_DSM", &input, &output, - ACPI_TYPE_INTEGER); - if (ACPI_FAILURE(status)) - return -ENOMEM; - ret = ((union acpi_object *)output.pointer)->integer.value; if (ret == 0) - status = (acpi_status)count; - else if (ret == 1) - status = -EPERM; - else - status = -EFAULT; - kfree(output.pointer); - return status; + return (acpi_status)count; + + return (ret == 1) ? -EPERM : -EFAULT; } static ssize_t tpm_show_ppi_transition_action(struct device *dev, struct device_attribute *attr, char *buf) { - char version[PPI_VERSION_LEN + 1]; - acpi_handle handle; - acpi_status status; - struct acpi_object_list input; - struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL }; - union acpi_object params[4]; u32 ret; - char *info[] = { + acpi_status status; + union acpi_object *obj = NULL; + union acpi_object tmp = { + .buffer.type = ACPI_TYPE_BUFFER, + .buffer.length = 0, + .buffer.pointer = NULL + }; + + static char *info[] = { "None", "Shutdown", "Reboot", "OS Vendor-specific", "Error", }; - input.count = 4; - ppi_assign_params(params, TPM_PPI_FN_VERSION); - input.pointer = params; - status = acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, - ACPI_UINT32_MAX, ppi_callback, NULL, - tpm_device_name, &handle); - if (ACPI_FAILURE(status)) - return -ENXIO; - status = acpi_evaluate_object_typed(handle, "_DSM", &input, &output, - ACPI_TYPE_STRING); - if (ACPI_FAILURE(status)) - return -ENOMEM; - strlcpy(version, - ((union acpi_object *)output.pointer)->string.pointer, - PPI_VERSION_LEN + 1); /* * PPI spec defines params[3].type as empty package, but some platforms * (e.g. Capella with PPI 1.0) need integer/string/buffer type, so for * compatibility, define params[3].type as buffer, if PPI version < 1.2 */ - if (strcmp(version, "1.2") == -1) { - params[3].type = ACPI_TYPE_BUFFER; - params[3].buffer.length = 0; - params[3].buffer.pointer = NULL; + if (strcmp(tpm_ppi_version, "1.2") < 0) + obj = &tmp; + obj = tpm_eval_dsm(TPM_PPI_FN_GETACT, ACPI_TYPE_INTEGER, obj); + if (!obj) { + return -ENXIO; + } else { + ret = obj->integer.value; + ACPI_FREE(obj); } - params[2].integer.value = TPM_PPI_FN_GETACT; - kfree(output.pointer); - output.length = ACPI_ALLOCATE_BUFFER; - output.pointer = NULL; - status = acpi_evaluate_object_typed(handle, "_DSM", &input, &output, - ACPI_TYPE_INTEGER); - if (ACPI_FAILURE(status)) - return -ENOMEM; - ret = ((union acpi_object *)output.pointer)->integer.value; + if (ret < ARRAY_SIZE(info) - 1) status = scnprintf(buf, PAGE_SIZE, "%d: %s\n", ret, info[ret]); else status = scnprintf(buf, PAGE_SIZE, "%d: %s\n", ret, info[ARRAY_SIZE(info)-1]); - kfree(output.pointer); return status; } @@ -275,27 +193,14 @@ static ssize_t tpm_show_ppi_response(struct device *dev, struct device_attribute *attr, char *buf) { - acpi_handle handle; - acpi_status status; - struct acpi_object_list input; - struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL }; - union acpi_object params[4]; - union acpi_object *ret_obj; - u64 req; - - input.count = 4; - ppi_assign_params(params, TPM_PPI_FN_GETRSP); - input.pointer = params; - status = acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, - ACPI_UINT32_MAX, ppi_callback, NULL, - tpm_device_name, &handle); - if (ACPI_FAILURE(status)) + acpi_status status = -EINVAL; + union acpi_object *obj, *ret_obj; + u64 req, res; + + obj = tpm_eval_dsm(TPM_PPI_FN_GETRSP, ACPI_TYPE_PACKAGE, NULL); + if (!obj) return -ENXIO; - status = acpi_evaluate_object_typed(handle, "_DSM", &input, &output, - ACPI_TYPE_PACKAGE); - if (ACPI_FAILURE(status)) - return -ENOMEM; /* * parameter output.pointer should be of package type, including * 3 integers. The first means function return code, the second means @@ -303,115 +208,82 @@ static ssize_t tpm_show_ppi_response(struct device *dev, * the most recent TPM operation request. Only if the first is 0, and * the second integer is not 0, the response makes sense. */ - ret_obj = ((union acpi_object *)output.pointer)->package.elements; - if (ret_obj->type != ACPI_TYPE_INTEGER) { - status = -EINVAL; + ret_obj = obj->package.elements; + if (obj->package.count < 3 || + ret_obj[0].type != ACPI_TYPE_INTEGER || + ret_obj[1].type != ACPI_TYPE_INTEGER || + ret_obj[2].type != ACPI_TYPE_INTEGER) goto cleanup; - } - if (ret_obj->integer.value) { + + if (ret_obj[0].integer.value) { status = -EFAULT; goto cleanup; } - ret_obj++; - if (ret_obj->type != ACPI_TYPE_INTEGER) { - status = -EINVAL; - goto cleanup; - } - if (ret_obj->integer.value) { - req = ret_obj->integer.value; - ret_obj++; - if (ret_obj->type != ACPI_TYPE_INTEGER) { - status = -EINVAL; - goto cleanup; - } - if (ret_obj->integer.value == 0) + + req = ret_obj[1].integer.value; + res = ret_obj[2].integer.value; + if (req) { + if (res == 0) status = scnprintf(buf, PAGE_SIZE, "%llu %s\n", req, "0: Success"); - else if (ret_obj->integer.value == 0xFFFFFFF0) + else if (res == 0xFFFFFFF0) status = scnprintf(buf, PAGE_SIZE, "%llu %s\n", req, "0xFFFFFFF0: User Abort"); - else if (ret_obj->integer.value == 0xFFFFFFF1) + else if (res == 0xFFFFFFF1) status = scnprintf(buf, PAGE_SIZE, "%llu %s\n", req, "0xFFFFFFF1: BIOS Failure"); - else if (ret_obj->integer.value >= 1 && - ret_obj->integer.value <= 0x00000FFF) + else if (res >= 1 && res <= 0x00000FFF) status = scnprintf(buf, PAGE_SIZE, "%llu %llu: %s\n", - req, ret_obj->integer.value, - "Corresponding TPM error"); + req, res, "Corresponding TPM error"); else status = scnprintf(buf, PAGE_SIZE, "%llu %llu: %s\n", - req, ret_obj->integer.value, - "Error"); + req, res, "Error"); } else { status = scnprintf(buf, PAGE_SIZE, "%llu: %s\n", - ret_obj->integer.value, "No Recent Request"); + req, "No Recent Request"); } + cleanup: - kfree(output.pointer); + ACPI_FREE(obj); return status; } static ssize_t show_ppi_operations(char *buf, u32 start, u32 end) { - char *str = buf; - char version[PPI_VERSION_LEN + 1]; - acpi_handle handle; - acpi_status status; - struct acpi_object_list input; - struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL }; - union acpi_object params[4]; - union acpi_object obj; int i; u32 ret; - char *info[] = { + char *str = buf; + union acpi_object *obj, tmp; + union acpi_object argv = ACPI_INIT_DSM_ARGV4(1, &tmp); + + static char *info[] = { "Not implemented", "BIOS only", "Blocked for OS by BIOS", "User required", "User not required", }; - input.count = 4; - ppi_assign_params(params, TPM_PPI_FN_VERSION); - input.pointer = params; - status = acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, - ACPI_UINT32_MAX, ppi_callback, NULL, - tpm_device_name, &handle); - if (ACPI_FAILURE(status)) - return -ENXIO; - status = acpi_evaluate_object_typed(handle, "_DSM", &input, &output, - ACPI_TYPE_STRING); - if (ACPI_FAILURE(status)) - return -ENOMEM; - - strlcpy(version, - ((union acpi_object *)output.pointer)->string.pointer, - PPI_VERSION_LEN + 1); - kfree(output.pointer); - output.length = ACPI_ALLOCATE_BUFFER; - output.pointer = NULL; - if (strcmp(version, "1.2") == -1) + if (!acpi_check_dsm(tpm_ppi_handle, tpm_ppi_uuid, TPM_PPI_REVISION_ID, + 1 << TPM_PPI_FN_GETOPR)) return -EPERM; - params[2].integer.value = TPM_PPI_FN_GETOPR; - params[3].package.count = 1; - obj.type = ACPI_TYPE_INTEGER; - params[3].package.elements = &obj; + tmp.integer.type = ACPI_TYPE_INTEGER; for (i = start; i <= end; i++) { - obj.integer.value = i; - status = acpi_evaluate_object_typed(handle, "_DSM", - &input, &output, ACPI_TYPE_INTEGER); - if (ACPI_FAILURE(status)) + tmp.integer.value = i; + obj = tpm_eval_dsm(TPM_PPI_FN_GETOPR, ACPI_TYPE_INTEGER, &argv); + if (!obj) { return -ENOMEM; + } else { + ret = obj->integer.value; + ACPI_FREE(obj); + } - ret = ((union acpi_object *)output.pointer)->integer.value; if (ret > 0 && ret < ARRAY_SIZE(info)) str += scnprintf(str, PAGE_SIZE, "%d %d: %s\n", i, ret, info[ret]); - kfree(output.pointer); - output.length = ACPI_ALLOCATE_BUFFER; - output.pointer = NULL; } + return str - buf; } @@ -453,6 +325,12 @@ static struct attribute_group ppi_attr_grp = { int tpm_add_ppi(struct kobject *parent) { + /* Cache TPM ACPI handle and version string */ + acpi_walk_namespace(ACPI_TYPE_DEVICE, ACPI_ROOT_OBJECT, ACPI_UINT32_MAX, + ppi_callback, NULL, NULL, &tpm_ppi_handle); + if (tpm_ppi_handle == NULL) + return -ENODEV; + return sysfs_create_group(parent, &ppi_attr_grp); } diff --git a/drivers/firmware/Kconfig b/drivers/firmware/Kconfig index 074787281c94..a6ef6acaa1c8 100644 --- a/drivers/firmware/Kconfig +++ b/drivers/firmware/Kconfig @@ -110,7 +110,7 @@ config DMI_SYSFS config ISCSI_IBFT_FIND bool "iSCSI Boot Firmware Table Attributes" - depends on X86 + depends on X86 && ACPI default n help This option enables the kernel to find the region of memory diff --git a/drivers/gpu/drm/gma500/opregion.c b/drivers/gpu/drm/gma500/opregion.c index ad0d6de938f3..13ec6283bf59 100644 --- a/drivers/gpu/drm/gma500/opregion.c +++ b/drivers/gpu/drm/gma500/opregion.c @@ -22,7 +22,6 @@ * */ #include <linux/acpi.h> -#include <linux/acpi_io.h> #include "psb_drv.h" #include "psb_intel_reg.h" diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile index 41838eaa799c..d4ae48b04cf2 100644 --- a/drivers/gpu/drm/i915/Makefile +++ b/drivers/gpu/drm/i915/Makefile @@ -38,7 +38,6 @@ i915-y := i915_drv.o i915_dma.o i915_irq.o \ intel_ringbuffer.o \ intel_overlay.o \ intel_sprite.o \ - intel_opregion.o \ intel_sideband.o \ intel_uncore.o \ dvo_ch7xxx.o \ @@ -51,7 +50,7 @@ i915-y := i915_drv.o i915_dma.o i915_irq.o \ i915-$(CONFIG_COMPAT) += i915_ioc32.o -i915-$(CONFIG_ACPI) += intel_acpi.o +i915-$(CONFIG_ACPI) += intel_acpi.o intel_opregion.o i915-$(CONFIG_DRM_I915_FBDEV) += intel_fbdev.o diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 90fcccba17b0..1caa5e34fbe3 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -2339,8 +2339,8 @@ extern void intel_i2c_reset(struct drm_device *dev); /* intel_opregion.c */ struct intel_encoder; -extern int intel_opregion_setup(struct drm_device *dev); #ifdef CONFIG_ACPI +extern int intel_opregion_setup(struct drm_device *dev); extern void intel_opregion_init(struct drm_device *dev); extern void intel_opregion_fini(struct drm_device *dev); extern void intel_opregion_asle_intr(struct drm_device *dev); @@ -2349,6 +2349,7 @@ extern int intel_opregion_notify_encoder(struct intel_encoder *intel_encoder, extern int intel_opregion_notify_adapter(struct drm_device *dev, pci_power_t state); #else +static inline int intel_opregion_setup(struct drm_device *dev) { return 0; } static inline void intel_opregion_init(struct drm_device *dev) { return; } static inline void intel_opregion_fini(struct drm_device *dev) { return; } static inline void intel_opregion_asle_intr(struct drm_device *dev) { return; } diff --git a/drivers/gpu/drm/i915/intel_acpi.c b/drivers/gpu/drm/i915/intel_acpi.c index dfff0907f70e..d96eee1ae9c5 100644 --- a/drivers/gpu/drm/i915/intel_acpi.c +++ b/drivers/gpu/drm/i915/intel_acpi.c @@ -6,14 +6,10 @@ #include <linux/pci.h> #include <linux/acpi.h> #include <linux/vga_switcheroo.h> -#include <acpi/acpi_drivers.h> - #include <drm/drmP.h> #include "i915_drv.h" #define INTEL_DSM_REVISION_ID 1 /* For Calpella anyway... */ - -#define INTEL_DSM_FN_SUPPORTED_FUNCTIONS 0 /* No args */ #define INTEL_DSM_FN_PLATFORM_MUX_INFO 1 /* No args */ static struct intel_dsm_priv { @@ -28,61 +24,6 @@ static const u8 intel_dsm_guid[] = { 0x0f, 0x13, 0x17, 0xb0, 0x1c, 0x2c }; -static int intel_dsm(acpi_handle handle, int func) -{ - struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL }; - struct acpi_object_list input; - union acpi_object params[4]; - union acpi_object *obj; - u32 result; - int ret = 0; - - input.count = 4; - input.pointer = params; - params[0].type = ACPI_TYPE_BUFFER; - params[0].buffer.length = sizeof(intel_dsm_guid); - params[0].buffer.pointer = (char *)intel_dsm_guid; - params[1].type = ACPI_TYPE_INTEGER; - params[1].integer.value = INTEL_DSM_REVISION_ID; - params[2].type = ACPI_TYPE_INTEGER; - params[2].integer.value = func; - params[3].type = ACPI_TYPE_PACKAGE; - params[3].package.count = 0; - params[3].package.elements = NULL; - - ret = acpi_evaluate_object(handle, "_DSM", &input, &output); - if (ret) { - DRM_DEBUG_DRIVER("failed to evaluate _DSM: %d\n", ret); - return ret; - } - - obj = (union acpi_object *)output.pointer; - - result = 0; - switch (obj->type) { - case ACPI_TYPE_INTEGER: - result = obj->integer.value; - break; - - case ACPI_TYPE_BUFFER: - if (obj->buffer.length == 4) { - result = (obj->buffer.pointer[0] | - (obj->buffer.pointer[1] << 8) | - (obj->buffer.pointer[2] << 16) | - (obj->buffer.pointer[3] << 24)); - break; - } - default: - ret = -EINVAL; - break; - } - if (result == 0x80000002) - ret = -ENODEV; - - kfree(output.pointer); - return ret; -} - static char *intel_dsm_port_name(u8 id) { switch (id) { @@ -137,83 +78,56 @@ static char *intel_dsm_mux_type(u8 type) static void intel_dsm_platform_mux_info(void) { - struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL }; - struct acpi_object_list input; - union acpi_object params[4]; - union acpi_object *pkg; - int i, ret; - - input.count = 4; - input.pointer = params; - params[0].type = ACPI_TYPE_BUFFER; - params[0].buffer.length = sizeof(intel_dsm_guid); - params[0].buffer.pointer = (char *)intel_dsm_guid; - params[1].type = ACPI_TYPE_INTEGER; - params[1].integer.value = INTEL_DSM_REVISION_ID; - params[2].type = ACPI_TYPE_INTEGER; - params[2].integer.value = INTEL_DSM_FN_PLATFORM_MUX_INFO; - params[3].type = ACPI_TYPE_PACKAGE; - params[3].package.count = 0; - params[3].package.elements = NULL; - - ret = acpi_evaluate_object(intel_dsm_priv.dhandle, "_DSM", &input, - &output); - if (ret) { - DRM_DEBUG_DRIVER("failed to evaluate _DSM: %d\n", ret); - goto out; + int i; + union acpi_object *pkg, *connector_count; + + pkg = acpi_evaluate_dsm_typed(intel_dsm_priv.dhandle, intel_dsm_guid, + INTEL_DSM_REVISION_ID, INTEL_DSM_FN_PLATFORM_MUX_INFO, + NULL, ACPI_TYPE_PACKAGE); + if (!pkg) { + DRM_DEBUG_DRIVER("failed to evaluate _DSM\n"); + return; } - pkg = (union acpi_object *)output.pointer; - - if (pkg->type == ACPI_TYPE_PACKAGE) { - union acpi_object *connector_count = &pkg->package.elements[0]; - DRM_DEBUG_DRIVER("MUX info connectors: %lld\n", - (unsigned long long)connector_count->integer.value); - for (i = 1; i < pkg->package.count; i++) { - union acpi_object *obj = &pkg->package.elements[i]; - union acpi_object *connector_id = - &obj->package.elements[0]; - union acpi_object *info = &obj->package.elements[1]; - DRM_DEBUG_DRIVER("Connector id: 0x%016llx\n", - (unsigned long long)connector_id->integer.value); - DRM_DEBUG_DRIVER(" port id: %s\n", - intel_dsm_port_name(info->buffer.pointer[0])); - DRM_DEBUG_DRIVER(" display mux info: %s\n", - intel_dsm_mux_type(info->buffer.pointer[1])); - DRM_DEBUG_DRIVER(" aux/dc mux info: %s\n", - intel_dsm_mux_type(info->buffer.pointer[2])); - DRM_DEBUG_DRIVER(" hpd mux info: %s\n", - intel_dsm_mux_type(info->buffer.pointer[3])); - } + connector_count = &pkg->package.elements[0]; + DRM_DEBUG_DRIVER("MUX info connectors: %lld\n", + (unsigned long long)connector_count->integer.value); + for (i = 1; i < pkg->package.count; i++) { + union acpi_object *obj = &pkg->package.elements[i]; + union acpi_object *connector_id = &obj->package.elements[0]; + union acpi_object *info = &obj->package.elements[1]; + DRM_DEBUG_DRIVER("Connector id: 0x%016llx\n", + (unsigned long long)connector_id->integer.value); + DRM_DEBUG_DRIVER(" port id: %s\n", + intel_dsm_port_name(info->buffer.pointer[0])); + DRM_DEBUG_DRIVER(" display mux info: %s\n", + intel_dsm_mux_type(info->buffer.pointer[1])); + DRM_DEBUG_DRIVER(" aux/dc mux info: %s\n", + intel_dsm_mux_type(info->buffer.pointer[2])); + DRM_DEBUG_DRIVER(" hpd mux info: %s\n", + intel_dsm_mux_type(info->buffer.pointer[3])); } -out: - kfree(output.pointer); + ACPI_FREE(pkg); } static bool intel_dsm_pci_probe(struct pci_dev *pdev) { acpi_handle dhandle; - int ret; dhandle = ACPI_HANDLE(&pdev->dev); if (!dhandle) return false; - if (!acpi_has_method(dhandle, "_DSM")) { + if (!acpi_check_dsm(dhandle, intel_dsm_guid, INTEL_DSM_REVISION_ID, + 1 << INTEL_DSM_FN_PLATFORM_MUX_INFO)) { DRM_DEBUG_KMS("no _DSM method for intel device\n"); return false; } - ret = intel_dsm(dhandle, INTEL_DSM_FN_SUPPORTED_FUNCTIONS); - if (ret < 0) { - DRM_DEBUG_KMS("failed to get supported _DSM functions\n"); - return false; - } - intel_dsm_priv.dhandle = dhandle; - intel_dsm_platform_mux_info(); + return true; } diff --git a/drivers/gpu/drm/i915/intel_opregion.c b/drivers/gpu/drm/i915/intel_opregion.c index 6d69a9bad865..9a8804bee5cd 100644 --- a/drivers/gpu/drm/i915/intel_opregion.c +++ b/drivers/gpu/drm/i915/intel_opregion.c @@ -28,7 +28,6 @@ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #include <linux/acpi.h> -#include <linux/acpi_io.h> #include <acpi/video.h> #include <drm/drmP.h> diff --git a/drivers/gpu/drm/nouveau/core/subdev/mxm/base.c b/drivers/gpu/drm/nouveau/core/subdev/mxm/base.c index 129120473f6c..13c5af88a601 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/mxm/base.c +++ b/drivers/gpu/drm/nouveau/core/subdev/mxm/base.c @@ -87,55 +87,39 @@ mxm_shadow_dsm(struct nouveau_mxm *mxm, u8 version) 0xB8, 0x9C, 0x79, 0xB6, 0x2F, 0xD5, 0x56, 0x65 }; u32 mxms_args[] = { 0x00000000 }; - union acpi_object args[4] = { - /* _DSM MUID */ - { .buffer.type = 3, - .buffer.length = sizeof(muid), - .buffer.pointer = muid, - }, - /* spec says this can be zero to mean "highest revision", but - * of course there's at least one bios out there which fails - * unless you pass in exactly the version it supports.. - */ - { .integer.type = ACPI_TYPE_INTEGER, - .integer.value = (version & 0xf0) << 4 | (version & 0x0f), - }, - /* MXMS function */ - { .integer.type = ACPI_TYPE_INTEGER, - .integer.value = 0x00000010, - }, - /* Pointer to MXMS arguments */ - { .buffer.type = ACPI_TYPE_BUFFER, - .buffer.length = sizeof(mxms_args), - .buffer.pointer = (char *)mxms_args, - }, + union acpi_object argv4 = { + .buffer.type = ACPI_TYPE_BUFFER, + .buffer.length = sizeof(mxms_args), + .buffer.pointer = (char *)mxms_args, }; - struct acpi_object_list list = { ARRAY_SIZE(args), args }; - struct acpi_buffer retn = { ACPI_ALLOCATE_BUFFER, NULL }; union acpi_object *obj; acpi_handle handle; - int ret; + int rev; handle = ACPI_HANDLE(&device->pdev->dev); if (!handle) return false; - ret = acpi_evaluate_object(handle, "_DSM", &list, &retn); - if (ret) { - nv_debug(mxm, "DSM MXMS failed: %d\n", ret); + /* + * spec says this can be zero to mean "highest revision", but + * of course there's at least one bios out there which fails + * unless you pass in exactly the version it supports.. + */ + rev = (version & 0xf0) << 4 | (version & 0x0f); + obj = acpi_evaluate_dsm(handle, muid, rev, 0x00000010, &argv4); + if (!obj) { + nv_debug(mxm, "DSM MXMS failed\n"); return false; } - obj = retn.pointer; if (obj->type == ACPI_TYPE_BUFFER) { mxm->mxms = kmemdup(obj->buffer.pointer, obj->buffer.length, GFP_KERNEL); - } else - if (obj->type == ACPI_TYPE_INTEGER) { + } else if (obj->type == ACPI_TYPE_INTEGER) { nv_debug(mxm, "DSM MXMS returned 0x%llx\n", obj->integer.value); } - kfree(obj); + ACPI_FREE(obj); return mxm->mxms != NULL; } #endif diff --git a/drivers/gpu/drm/nouveau/nouveau_acpi.c b/drivers/gpu/drm/nouveau/nouveau_acpi.c index ba0183fb84f3..3c149617cfcb 100644 --- a/drivers/gpu/drm/nouveau/nouveau_acpi.c +++ b/drivers/gpu/drm/nouveau/nouveau_acpi.c @@ -1,15 +1,10 @@ #include <linux/pci.h> #include <linux/acpi.h> #include <linux/slab.h> -#include <acpi/acpi_drivers.h> -#include <acpi/acpi_bus.h> -#include <acpi/video.h> -#include <acpi/acpi.h> #include <linux/mxm-wmi.h> - #include <linux/vga_switcheroo.h> - #include <drm/drm_edid.h> +#include <acpi/video.h> #include "nouveau_drm.h" #include "nouveau_acpi.h" @@ -78,124 +73,66 @@ static const char nouveau_op_dsm_muid[] = { static int nouveau_optimus_dsm(acpi_handle handle, int func, int arg, uint32_t *result) { - struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL }; - struct acpi_object_list input; - union acpi_object params[4]; + int i; union acpi_object *obj; - int i, err; char args_buff[4]; + union acpi_object argv4 = { + .buffer.type = ACPI_TYPE_BUFFER, + .buffer.length = 4, + .buffer.pointer = args_buff + }; - input.count = 4; - input.pointer = params; - params[0].type = ACPI_TYPE_BUFFER; - params[0].buffer.length = sizeof(nouveau_op_dsm_muid); - params[0].buffer.pointer = (char *)nouveau_op_dsm_muid; - params[1].type = ACPI_TYPE_INTEGER; - params[1].integer.value = 0x00000100; - params[2].type = ACPI_TYPE_INTEGER; - params[2].integer.value = func; - params[3].type = ACPI_TYPE_BUFFER; - params[3].buffer.length = 4; /* ACPI is little endian, AABBCCDD becomes {DD,CC,BB,AA} */ for (i = 0; i < 4; i++) args_buff[i] = (arg >> i * 8) & 0xFF; - params[3].buffer.pointer = args_buff; - - err = acpi_evaluate_object(handle, "_DSM", &input, &output); - if (err) { - printk(KERN_INFO "failed to evaluate _DSM: %d\n", err); - return err; - } - - obj = (union acpi_object *)output.pointer; - if (obj->type == ACPI_TYPE_INTEGER) - if (obj->integer.value == 0x80000002) { - return -ENODEV; - } - - if (obj->type == ACPI_TYPE_BUFFER) { - if (obj->buffer.length == 4 && result) { - *result = 0; + *result = 0; + obj = acpi_evaluate_dsm_typed(handle, nouveau_op_dsm_muid, 0x00000100, + func, &argv4, ACPI_TYPE_BUFFER); + if (!obj) { + acpi_handle_info(handle, "failed to evaluate _DSM\n"); + return AE_ERROR; + } else { + if (obj->buffer.length == 4) { *result |= obj->buffer.pointer[0]; *result |= (obj->buffer.pointer[1] << 8); *result |= (obj->buffer.pointer[2] << 16); *result |= (obj->buffer.pointer[3] << 24); } + ACPI_FREE(obj); } - kfree(output.pointer); return 0; } -static int nouveau_dsm(acpi_handle handle, int func, int arg, uint32_t *result) +static int nouveau_dsm(acpi_handle handle, int func, int arg) { - struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL }; - struct acpi_object_list input; - union acpi_object params[4]; + int ret = 0; union acpi_object *obj; - int err; - - input.count = 4; - input.pointer = params; - params[0].type = ACPI_TYPE_BUFFER; - params[0].buffer.length = sizeof(nouveau_dsm_muid); - params[0].buffer.pointer = (char *)nouveau_dsm_muid; - params[1].type = ACPI_TYPE_INTEGER; - params[1].integer.value = 0x00000102; - params[2].type = ACPI_TYPE_INTEGER; - params[2].integer.value = func; - params[3].type = ACPI_TYPE_INTEGER; - params[3].integer.value = arg; - - err = acpi_evaluate_object(handle, "_DSM", &input, &output); - if (err) { - printk(KERN_INFO "failed to evaluate _DSM: %d\n", err); - return err; - } - - obj = (union acpi_object *)output.pointer; - - if (obj->type == ACPI_TYPE_INTEGER) + union acpi_object argv4 = { + .integer.type = ACPI_TYPE_INTEGER, + .integer.value = arg, + }; + + obj = acpi_evaluate_dsm_typed(handle, nouveau_dsm_muid, 0x00000102, + func, &argv4, ACPI_TYPE_INTEGER); + if (!obj) { + acpi_handle_info(handle, "failed to evaluate _DSM\n"); + return AE_ERROR; + } else { if (obj->integer.value == 0x80000002) - return -ENODEV; - - if (obj->type == ACPI_TYPE_BUFFER) { - if (obj->buffer.length == 4 && result) { - *result = 0; - *result |= obj->buffer.pointer[0]; - *result |= (obj->buffer.pointer[1] << 8); - *result |= (obj->buffer.pointer[2] << 16); - *result |= (obj->buffer.pointer[3] << 24); - } + ret = -ENODEV; + ACPI_FREE(obj); } - kfree(output.pointer); - return 0; -} - -/* Returns 1 if a DSM function is usable and 0 otherwise */ -static int nouveau_test_dsm(acpi_handle test_handle, - int (*dsm_func)(acpi_handle, int, int, uint32_t *), - int sfnc) -{ - u32 result = 0; - - /* Function 0 returns a Buffer containing available functions. The args - * parameter is ignored for function 0, so just put 0 in it */ - if (dsm_func(test_handle, 0, 0, &result)) - return 0; - - /* ACPI Spec v4 9.14.1: if bit 0 is zero, no function is supported. If - * the n-th bit is enabled, function n is supported */ - return result & 1 && result & (1 << sfnc); + return ret; } static int nouveau_dsm_switch_mux(acpi_handle handle, int mux_id) { mxm_wmi_call_mxmx(mux_id == NOUVEAU_DSM_LED_STAMINA ? MXM_MXDS_ADAPTER_IGD : MXM_MXDS_ADAPTER_0); mxm_wmi_call_mxds(mux_id == NOUVEAU_DSM_LED_STAMINA ? MXM_MXDS_ADAPTER_IGD : MXM_MXDS_ADAPTER_0); - return nouveau_dsm(handle, NOUVEAU_DSM_LED, mux_id, NULL); + return nouveau_dsm(handle, NOUVEAU_DSM_LED, mux_id); } static int nouveau_dsm_set_discrete_state(acpi_handle handle, enum vga_switcheroo_state state) @@ -205,7 +142,7 @@ static int nouveau_dsm_set_discrete_state(acpi_handle handle, enum vga_switchero arg = NOUVEAU_DSM_POWER_SPEED; else arg = NOUVEAU_DSM_POWER_STAMINA; - nouveau_dsm(handle, NOUVEAU_DSM_POWER, arg, NULL); + nouveau_dsm(handle, NOUVEAU_DSM_POWER, arg); return 0; } @@ -265,11 +202,12 @@ static int nouveau_dsm_pci_probe(struct pci_dev *pdev) nouveau_dsm_priv.other_handle = dhandle; return false; } - if (nouveau_test_dsm(dhandle, nouveau_dsm, NOUVEAU_DSM_POWER)) + if (acpi_check_dsm(dhandle, nouveau_dsm_muid, 0x00000102, + 1 << NOUVEAU_DSM_POWER)) retval |= NOUVEAU_DSM_HAS_MUX; - if (nouveau_test_dsm(dhandle, nouveau_optimus_dsm, - NOUVEAU_DSM_OPTIMUS_CAPS)) + if (acpi_check_dsm(dhandle, nouveau_op_dsm_muid, 0x00000100, + 1 << NOUVEAU_DSM_OPTIMUS_CAPS)) retval |= NOUVEAU_DSM_HAS_OPT; if (retval & NOUVEAU_DSM_HAS_OPT) { diff --git a/drivers/gpu/drm/radeon/radeon_acpi.c b/drivers/gpu/drm/radeon/radeon_acpi.c index 98a9074b306b..77e9d07c55b6 100644 --- a/drivers/gpu/drm/radeon/radeon_acpi.c +++ b/drivers/gpu/drm/radeon/radeon_acpi.c @@ -25,18 +25,14 @@ #include <linux/acpi.h> #include <linux/slab.h> #include <linux/power_supply.h> -#include <acpi/acpi_drivers.h> -#include <acpi/acpi_bus.h> +#include <linux/vga_switcheroo.h> #include <acpi/video.h> - #include <drm/drmP.h> #include <drm/drm_crtc_helper.h> #include "radeon.h" #include "radeon_acpi.h" #include "atom.h" -#include <linux/vga_switcheroo.h> - #define ACPI_AC_CLASS "ac_adapter" extern void radeon_pm_acpi_event_handler(struct radeon_device *rdev); diff --git a/drivers/hid/i2c-hid/i2c-hid.c b/drivers/hid/i2c-hid/i2c-hid.c index 5f7e55f4b7f0..d22668f7d982 100644 --- a/drivers/hid/i2c-hid/i2c-hid.c +++ b/drivers/hid/i2c-hid/i2c-hid.c @@ -850,37 +850,23 @@ static int i2c_hid_acpi_pdata(struct i2c_client *client, 0xF7, 0xF6, 0xDF, 0x3C, 0x67, 0x42, 0x55, 0x45, 0xAD, 0x05, 0xB3, 0x0A, 0x3D, 0x89, 0x38, 0xDE, }; - union acpi_object params[4]; - struct acpi_object_list input; + union acpi_object *obj; struct acpi_device *adev; - unsigned long long value; acpi_handle handle; handle = ACPI_HANDLE(&client->dev); if (!handle || acpi_bus_get_device(handle, &adev)) return -ENODEV; - input.count = ARRAY_SIZE(params); - input.pointer = params; - - params[0].type = ACPI_TYPE_BUFFER; - params[0].buffer.length = sizeof(i2c_hid_guid); - params[0].buffer.pointer = i2c_hid_guid; - params[1].type = ACPI_TYPE_INTEGER; - params[1].integer.value = 1; - params[2].type = ACPI_TYPE_INTEGER; - params[2].integer.value = 1; /* HID function */ - params[3].type = ACPI_TYPE_PACKAGE; - params[3].package.count = 0; - params[3].package.elements = NULL; - - if (ACPI_FAILURE(acpi_evaluate_integer(handle, "_DSM", &input, - &value))) { + obj = acpi_evaluate_dsm_typed(handle, i2c_hid_guid, 1, 1, NULL, + ACPI_TYPE_INTEGER); + if (!obj) { dev_err(&client->dev, "device _DSM execution failed\n"); return -ENODEV; } - pdata->hid_descriptor_address = value; + pdata->hid_descriptor_address = obj->integer.value; + ACPI_FREE(obj); return 0; } diff --git a/drivers/hv/vmbus_drv.c b/drivers/hv/vmbus_drv.c index 48aad4faea06..077bb1bdac34 100644 --- a/drivers/hv/vmbus_drv.c +++ b/drivers/hv/vmbus_drv.c @@ -30,7 +30,6 @@ #include <linux/sysctl.h> #include <linux/slab.h> #include <linux/acpi.h> -#include <acpi/acpi_bus.h> #include <linux/completion.h> #include <linux/hyperv.h> #include <linux/kernel_stat.h> @@ -39,7 +38,6 @@ #include <asm/mshyperv.h> #include "hyperv_vmbus.h" - static struct acpi_device *hv_acpi_dev; static struct tasklet_struct msg_dpc; diff --git a/drivers/hwmon/acpi_power_meter.c b/drivers/hwmon/acpi_power_meter.c index 6a34f7f48eb9..579bdf93be43 100644 --- a/drivers/hwmon/acpi_power_meter.c +++ b/drivers/hwmon/acpi_power_meter.c @@ -30,8 +30,7 @@ #include <linux/sched.h> #include <linux/time.h> #include <linux/err.h> -#include <acpi/acpi_drivers.h> -#include <acpi/acpi_bus.h> +#include <linux/acpi.h> #define ACPI_POWER_METER_NAME "power_meter" ACPI_MODULE_NAME(ACPI_POWER_METER_NAME); diff --git a/drivers/hwmon/asus_atk0110.c b/drivers/hwmon/asus_atk0110.c index dafc63c6932d..ae208f612198 100644 --- a/drivers/hwmon/asus_atk0110.c +++ b/drivers/hwmon/asus_atk0110.c @@ -16,11 +16,7 @@ #include <linux/dmi.h> #include <linux/jiffies.h> #include <linux/err.h> - -#include <acpi/acpi.h> -#include <acpi/acpi_drivers.h> -#include <acpi/acpi_bus.h> - +#include <linux/acpi.h> #define ATK_HID "ATK0110" diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c index d74c0b34248e..c4c5588ec0fb 100644 --- a/drivers/i2c/i2c-core.c +++ b/drivers/i2c/i2c-core.c @@ -104,6 +104,11 @@ static int i2c_device_match(struct device *dev, struct device_driver *drv) static int i2c_device_uevent(struct device *dev, struct kobj_uevent_env *env) { struct i2c_client *client = to_i2c_client(dev); + int rc; + + rc = acpi_device_uevent_modalias(dev, env); + if (rc != -ENODEV) + return rc; if (add_uevent_var(env, "MODALIAS=%s%s", I2C_MODULE_PREFIX, client->name)) @@ -409,6 +414,12 @@ static ssize_t show_modalias(struct device *dev, struct device_attribute *attr, char *buf) { struct i2c_client *client = to_i2c_client(dev); + int len; + + len = acpi_device_modalias(dev, buf, PAGE_SIZE -1); + if (len != -ENODEV) + return len; + return sprintf(buf, "%s%s\n", I2C_MODULE_PREFIX, client->name); } diff --git a/drivers/ide/ide-acpi.c b/drivers/ide/ide-acpi.c index d9e1f7ccfe6f..b6940992a6ff 100644 --- a/drivers/ide/ide-acpi.c +++ b/drivers/ide/ide-acpi.c @@ -14,7 +14,6 @@ #include <linux/errno.h> #include <linux/kernel.h> #include <linux/slab.h> -#include <acpi/acpi.h> #include <linux/ide.h> #include <linux/pci.h> #include <linux/dmi.h> @@ -98,6 +97,17 @@ bool ide_port_acpi(ide_hwif_t *hwif) return ide_noacpi == 0 && hwif->acpidata; } +static acpi_handle acpi_get_child(acpi_handle handle, u64 addr) +{ + struct acpi_device *adev; + + if (!handle || acpi_bus_get_device(handle, &adev)) + return NULL; + + adev = acpi_find_child_device(adev, addr, false); + return adev ? adev->handle : NULL; +} + /** * ide_get_dev_handle - finds acpi_handle and PCI device.function * @dev: device to locate diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c index 797ed29a36ea..282186e53290 100644 --- a/drivers/idle/intel_idle.c +++ b/drivers/idle/intel_idle.c @@ -644,39 +644,10 @@ static int __init intel_idle_cpuidle_driver_init(void) */ static int intel_idle_cpu_init(int cpu) { - int cstate; struct cpuidle_device *dev; dev = per_cpu_ptr(intel_idle_cpuidle_devices, cpu); - dev->state_count = 1; - - for (cstate = 0; cstate < CPUIDLE_STATE_MAX; ++cstate) { - int num_substates, mwait_hint, mwait_cstate, mwait_substate; - - if (cpuidle_state_table[cstate].enter == NULL) - break; - - if (cstate + 1 > max_cstate) { - printk(PREFIX "max_cstate %d reached\n", max_cstate); - break; - } - - mwait_hint = flg2MWAIT(cpuidle_state_table[cstate].flags); - mwait_cstate = MWAIT_HINT2CSTATE(mwait_hint); - mwait_substate = MWAIT_HINT2SUBSTATE(mwait_hint); - - /* does the state exist in CPUID.MWAIT? */ - num_substates = (mwait_substates >> ((mwait_cstate + 1) * 4)) - & MWAIT_SUBSTATE_MASK; - - /* if sub-state in table is not enumerated by CPUID */ - if ((mwait_substate + 1) > num_substates) - continue; - - dev->state_count += 1; - } - dev->cpu = cpu; if (cpuidle_register_device(dev)) { @@ -688,6 +659,9 @@ static int intel_idle_cpu_init(int cpu) if (icpu->auto_demotion_disable_flags) smp_call_function_single(cpu, auto_demotion_disable, NULL, 1); + if (icpu->disable_promotion_to_c1e) + smp_call_function_single(cpu, c1e_promotion_disable, NULL, 1); + return 0; } diff --git a/drivers/input/misc/atlas_btns.c b/drivers/input/misc/atlas_btns.c index 5d4402365a52..d781b5e52065 100644 --- a/drivers/input/misc/atlas_btns.c +++ b/drivers/input/misc/atlas_btns.c @@ -28,8 +28,8 @@ #include <linux/init.h> #include <linux/input.h> #include <linux/types.h> +#include <linux/acpi.h> #include <asm/uaccess.h> -#include <acpi/acpi_drivers.h> #define ACPI_ATLAS_NAME "Atlas ACPI" #define ACPI_ATLAS_CLASS "Atlas" diff --git a/drivers/iommu/amd_iommu_init.c b/drivers/iommu/amd_iommu_init.c index 8f798be6e398..28b4bea7c109 100644 --- a/drivers/iommu/amd_iommu_init.c +++ b/drivers/iommu/amd_iommu_init.c @@ -26,7 +26,6 @@ #include <linux/msi.h> #include <linux/amd-iommu.h> #include <linux/export.h> -#include <acpi/acpi.h> #include <asm/pci-direct.h> #include <asm/iommu.h> #include <asm/gart.h> diff --git a/drivers/iommu/intel_irq_remapping.c b/drivers/iommu/intel_irq_remapping.c index bab10b1002fb..0cb7528b30a1 100644 --- a/drivers/iommu/intel_irq_remapping.c +++ b/drivers/iommu/intel_irq_remapping.c @@ -6,11 +6,11 @@ #include <linux/hpet.h> #include <linux/pci.h> #include <linux/irq.h> +#include <linux/intel-iommu.h> +#include <linux/acpi.h> #include <asm/io_apic.h> #include <asm/smp.h> #include <asm/cpu.h> -#include <linux/intel-iommu.h> -#include <acpi/acpi.h> #include <asm/irq_remapping.h> #include <asm/pci-direct.h> #include <asm/msidef.h> diff --git a/drivers/mmc/core/sdio_bus.c b/drivers/mmc/core/sdio_bus.c index 157b570ba343..92d1ba8e8153 100644 --- a/drivers/mmc/core/sdio_bus.c +++ b/drivers/mmc/core/sdio_bus.c @@ -308,7 +308,7 @@ static void sdio_acpi_set_handle(struct sdio_func *func) struct mmc_host *host = func->card->host; u64 addr = (host->slotno << 16) | func->num; - acpi_preset_companion(&func->dev, ACPI_HANDLE(host->parent), addr); + acpi_preset_companion(&func->dev, ACPI_COMPANION(host->parent), addr); } #else static inline void sdio_acpi_set_handle(struct sdio_func *func) {} diff --git a/drivers/of/device.c b/drivers/of/device.c index f685e55e0717..dafb9736ab9b 100644 --- a/drivers/of/device.c +++ b/drivers/of/device.c @@ -85,6 +85,9 @@ ssize_t of_device_get_modalias(struct device *dev, char *str, ssize_t len) int cplen, i; ssize_t tsize, csize, repend; + if ((!dev) || (!dev->of_node)) + return -ENODEV; + /* Name & Type */ csize = snprintf(str, len, "of:N%sT%s", dev->of_node->name, dev->of_node->type); diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c index e86439283a5d..4f0c40d405fc 100644 --- a/drivers/pci/hotplug/acpiphp_glue.c +++ b/drivers/pci/hotplug/acpiphp_glue.c @@ -491,7 +491,7 @@ static void acpiphp_bus_add(acpi_handle handle) acpi_bus_scan(handle); acpi_bus_get_device(handle, &adev); - if (adev) + if (acpi_device_enumerated(adev)) acpi_device_set_power(adev, ACPI_STATE_D0); } diff --git a/drivers/pci/hotplug/acpiphp_ibm.c b/drivers/pci/hotplug/acpiphp_ibm.c index ecfac7e72d91..8dcccffd6e21 100644 --- a/drivers/pci/hotplug/acpiphp_ibm.c +++ b/drivers/pci/hotplug/acpiphp_ibm.c @@ -31,12 +31,11 @@ #include <linux/slab.h> #include <linux/module.h> #include <linux/kernel.h> -#include <acpi/acpi_bus.h> #include <linux/sysfs.h> #include <linux/kobject.h> -#include <asm/uaccess.h> #include <linux/moduleparam.h> #include <linux/pci.h> +#include <asm/uaccess.h> #include "acpiphp.h" #include "../pci.h" diff --git a/drivers/pci/hotplug/pciehp.h b/drivers/pci/hotplug/pciehp.h index 21e865ded1dc..24e147cae667 100644 --- a/drivers/pci/hotplug/pciehp.h +++ b/drivers/pci/hotplug/pciehp.h @@ -163,8 +163,6 @@ static inline const char *slot_name(struct slot *slot) } #ifdef CONFIG_ACPI -#include <acpi/acpi.h> -#include <acpi/acpi_bus.h> #include <linux/pci-acpi.h> void __init pciehp_acpi_slot_detection_init(void); diff --git a/drivers/pci/ioapic.c b/drivers/pci/ioapic.c index 50ce68098298..2122b2bf006f 100644 --- a/drivers/pci/ioapic.c +++ b/drivers/pci/ioapic.c @@ -20,7 +20,6 @@ #include <linux/module.h> #include <linux/acpi.h> #include <linux/slab.h> -#include <acpi/acpi_bus.h> struct ioapic { acpi_handle handle; diff --git a/drivers/pci/pci-acpi.c b/drivers/pci/pci-acpi.c index f7ebdba14bde..733a8222b13f 100644 --- a/drivers/pci/pci-acpi.c +++ b/drivers/pci/pci-acpi.c @@ -12,9 +12,6 @@ #include <linux/pci.h> #include <linux/module.h> #include <linux/pci-aspm.h> -#include <acpi/acpi.h> -#include <acpi/acpi_bus.h> - #include <linux/pci-acpi.h> #include <linux/pm_runtime.h> #include <linux/pm_qos.h> @@ -306,10 +303,10 @@ void acpi_pci_remove_bus(struct pci_bus *bus) } /* ACPI bus type */ -static int acpi_pci_find_device(struct device *dev, acpi_handle *handle) +static struct acpi_device *acpi_pci_find_companion(struct device *dev) { struct pci_dev *pci_dev = to_pci_dev(dev); - bool is_bridge; + bool check_children; u64 addr; /* @@ -317,14 +314,12 @@ static int acpi_pci_find_device(struct device *dev, acpi_handle *handle) * is set only after acpi_pci_find_device() has been called for the * given device. */ - is_bridge = pci_dev->hdr_type == PCI_HEADER_TYPE_BRIDGE + check_children = pci_dev->hdr_type == PCI_HEADER_TYPE_BRIDGE || pci_dev->hdr_type == PCI_HEADER_TYPE_CARDBUS; /* Please ref to ACPI spec for the syntax of _ADR */ addr = (PCI_SLOT(pci_dev->devfn) << 16) | PCI_FUNC(pci_dev->devfn); - *handle = acpi_find_child(ACPI_HANDLE(dev->parent), addr, is_bridge); - if (!*handle) - return -ENODEV; - return 0; + return acpi_find_child_device(ACPI_COMPANION(dev->parent), addr, + check_children); } static void pci_acpi_setup(struct device *dev) @@ -367,7 +362,7 @@ static bool pci_acpi_bus_match(struct device *dev) static struct acpi_bus_type acpi_pci_bus = { .name = "PCI", .match = pci_acpi_bus_match, - .find_device = acpi_pci_find_device, + .find_companion = acpi_pci_find_companion, .setup = pci_acpi_setup, .cleanup = pci_acpi_cleanup, }; diff --git a/drivers/pci/pci-label.c b/drivers/pci/pci-label.c index d51f45aa669e..d2d1ceccad4b 100644 --- a/drivers/pci/pci-label.c +++ b/drivers/pci/pci-label.c @@ -29,7 +29,6 @@ #include <linux/nls.h> #include <linux/acpi.h> #include <linux/pci-acpi.h> -#include <acpi/acpi_bus.h> #include "pci.h" #define DEVICE_LABEL_DSM 0x07 @@ -187,7 +186,6 @@ static const char device_label_dsm_uuid[] = { }; enum acpi_attr_enum { - ACPI_ATTR_NONE = 0, ACPI_ATTR_LABEL_SHOW, ACPI_ATTR_INDEX_SHOW, }; @@ -195,84 +193,61 @@ enum acpi_attr_enum { static void dsm_label_utf16s_to_utf8s(union acpi_object *obj, char *buf) { int len; - len = utf16s_to_utf8s((const wchar_t *)obj-> - package.elements[1].string.pointer, - obj->package.elements[1].string.length, + len = utf16s_to_utf8s((const wchar_t *)obj->string.pointer, + obj->string.length, UTF16_LITTLE_ENDIAN, buf, PAGE_SIZE); buf[len] = '\n'; } static int -dsm_get_label(acpi_handle handle, int func, - struct acpi_buffer *output, - char *buf, enum acpi_attr_enum attribute) +dsm_get_label(struct device *dev, char *buf, enum acpi_attr_enum attr) { - struct acpi_object_list input; - union acpi_object params[4]; - union acpi_object *obj; - int len = 0; - - int err; - - input.count = 4; - input.pointer = params; - params[0].type = ACPI_TYPE_BUFFER; - params[0].buffer.length = sizeof(device_label_dsm_uuid); - params[0].buffer.pointer = (char *)device_label_dsm_uuid; - params[1].type = ACPI_TYPE_INTEGER; - params[1].integer.value = 0x02; - params[2].type = ACPI_TYPE_INTEGER; - params[2].integer.value = func; - params[3].type = ACPI_TYPE_PACKAGE; - params[3].package.count = 0; - params[3].package.elements = NULL; - - err = acpi_evaluate_object(handle, "_DSM", &input, output); - if (err) + acpi_handle handle; + union acpi_object *obj, *tmp; + int len = -1; + + handle = ACPI_HANDLE(dev); + if (!handle) return -1; - obj = (union acpi_object *)output->pointer; - - switch (obj->type) { - case ACPI_TYPE_PACKAGE: - if (obj->package.count != 2) - break; - len = obj->package.elements[0].integer.value; - if (buf) { - if (attribute == ACPI_ATTR_INDEX_SHOW) - scnprintf(buf, PAGE_SIZE, "%llu\n", - obj->package.elements[0].integer.value); - else if (attribute == ACPI_ATTR_LABEL_SHOW) - dsm_label_utf16s_to_utf8s(obj, buf); - kfree(output->pointer); - return strlen(buf); - } - kfree(output->pointer); - return len; - break; - default: - kfree(output->pointer); + obj = acpi_evaluate_dsm(handle, device_label_dsm_uuid, 0x2, + DEVICE_LABEL_DSM, NULL); + if (!obj) + return -1; + + tmp = obj->package.elements; + if (obj->type == ACPI_TYPE_PACKAGE && obj->package.count == 2 && + tmp[0].type == ACPI_TYPE_INTEGER && + tmp[1].type == ACPI_TYPE_STRING) { + /* + * The second string element is optional even when + * this _DSM is implemented; when not implemented, + * this entry must return a null string. + */ + if (attr == ACPI_ATTR_INDEX_SHOW) + scnprintf(buf, PAGE_SIZE, "%llu\n", tmp->integer.value); + else if (attr == ACPI_ATTR_LABEL_SHOW) + dsm_label_utf16s_to_utf8s(tmp + 1, buf); + len = strlen(buf) > 0 ? strlen(buf) : -1; } - return -1; + + ACPI_FREE(obj); + + return len; } static bool device_has_dsm(struct device *dev) { acpi_handle handle; - struct acpi_buffer output = {ACPI_ALLOCATE_BUFFER, NULL}; handle = ACPI_HANDLE(dev); - if (!handle) - return FALSE; + return false; - if (dsm_get_label(handle, DEVICE_LABEL_DSM, &output, NULL, - ACPI_ATTR_NONE) > 0) - return TRUE; - - return FALSE; + return !!acpi_check_dsm(handle, device_label_dsm_uuid, 0x2, + 1 << DEVICE_LABEL_DSM); } static umode_t @@ -291,44 +266,13 @@ acpi_index_string_exist(struct kobject *kobj, struct attribute *attr, int n) static ssize_t acpilabel_show(struct device *dev, struct device_attribute *attr, char *buf) { - struct acpi_buffer output = {ACPI_ALLOCATE_BUFFER, NULL}; - acpi_handle handle; - int length; - - handle = ACPI_HANDLE(dev); - - if (!handle) - return -1; - - length = dsm_get_label(handle, DEVICE_LABEL_DSM, - &output, buf, ACPI_ATTR_LABEL_SHOW); - - if (length < 1) - return -1; - - return length; + return dsm_get_label(dev, buf, ACPI_ATTR_LABEL_SHOW); } static ssize_t acpiindex_show(struct device *dev, struct device_attribute *attr, char *buf) { - struct acpi_buffer output = {ACPI_ALLOCATE_BUFFER, NULL}; - acpi_handle handle; - int length; - - handle = ACPI_HANDLE(dev); - - if (!handle) - return -1; - - length = dsm_get_label(handle, DEVICE_LABEL_DSM, - &output, buf, ACPI_ATTR_INDEX_SHOW); - - if (length < 0) - return -1; - - return length; - + return dsm_get_label(dev, buf, ACPI_ATTR_INDEX_SHOW); } static struct device_attribute acpi_attr_label = { diff --git a/drivers/platform/x86/acer-wmi.c b/drivers/platform/x86/acer-wmi.c index c9076bdaf2c1..c91f69b39db4 100644 --- a/drivers/platform/x86/acer-wmi.c +++ b/drivers/platform/x86/acer-wmi.c @@ -41,8 +41,6 @@ #include <linux/slab.h> #include <linux/input.h> #include <linux/input/sparse-keymap.h> - -#include <acpi/acpi_drivers.h> #include <acpi/video.h> MODULE_AUTHOR("Carlos Corbacho"); diff --git a/drivers/platform/x86/asus-laptop.c b/drivers/platform/x86/asus-laptop.c index 594323a926cf..7f4dc6f51f8a 100644 --- a/drivers/platform/x86/asus-laptop.c +++ b/drivers/platform/x86/asus-laptop.c @@ -53,8 +53,7 @@ #include <linux/rfkill.h> #include <linux/slab.h> #include <linux/dmi.h> -#include <acpi/acpi_drivers.h> -#include <acpi/acpi_bus.h> +#include <linux/acpi.h> #define ASUS_LAPTOP_VERSION "0.42" diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c index 19c313b056c3..df7ecb9ecd9d 100644 --- a/drivers/platform/x86/asus-wmi.c +++ b/drivers/platform/x86/asus-wmi.c @@ -45,8 +45,7 @@ #include <linux/seq_file.h> #include <linux/platform_device.h> #include <linux/thermal.h> -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> +#include <linux/acpi.h> #include <acpi/video.h> #include "asus-wmi.h" diff --git a/drivers/platform/x86/classmate-laptop.c b/drivers/platform/x86/classmate-laptop.c index 6dfa8d3b4eec..70d355a9ae2c 100644 --- a/drivers/platform/x86/classmate-laptop.c +++ b/drivers/platform/x86/classmate-laptop.c @@ -21,14 +21,13 @@ #include <linux/module.h> #include <linux/slab.h> #include <linux/workqueue.h> -#include <acpi/acpi_drivers.h> +#include <linux/acpi.h> #include <linux/backlight.h> #include <linux/input.h> #include <linux/rfkill.h> MODULE_LICENSE("GPL"); - struct cmpc_accel { int sensitivity; int g_select; diff --git a/drivers/platform/x86/dell-wmi-aio.c b/drivers/platform/x86/dell-wmi-aio.c index bcf8cc6b5537..dbc97a33bbc8 100644 --- a/drivers/platform/x86/dell-wmi-aio.c +++ b/drivers/platform/x86/dell-wmi-aio.c @@ -24,7 +24,6 @@ #include <linux/types.h> #include <linux/input.h> #include <linux/input/sparse-keymap.h> -#include <acpi/acpi_drivers.h> #include <linux/acpi.h> #include <linux/string.h> diff --git a/drivers/platform/x86/dell-wmi.c b/drivers/platform/x86/dell-wmi.c index 60e0900bc117..390e8e33d5e3 100644 --- a/drivers/platform/x86/dell-wmi.c +++ b/drivers/platform/x86/dell-wmi.c @@ -32,7 +32,6 @@ #include <linux/types.h> #include <linux/input.h> #include <linux/input/sparse-keymap.h> -#include <acpi/acpi_drivers.h> #include <linux/acpi.h> #include <linux/string.h> #include <linux/dmi.h> diff --git a/drivers/platform/x86/eeepc-laptop.c b/drivers/platform/x86/eeepc-laptop.c index dec68e7a99c7..bcde1ea02dd3 100644 --- a/drivers/platform/x86/eeepc-laptop.c +++ b/drivers/platform/x86/eeepc-laptop.c @@ -28,8 +28,7 @@ #include <linux/hwmon.h> #include <linux/hwmon-sysfs.h> #include <linux/slab.h> -#include <acpi/acpi_drivers.h> -#include <acpi/acpi_bus.h> +#include <linux/acpi.h> #include <linux/uaccess.h> #include <linux/input.h> #include <linux/input/sparse-keymap.h> diff --git a/drivers/platform/x86/eeepc-wmi.c b/drivers/platform/x86/eeepc-wmi.c index af67e6e56ebb..6112933f6278 100644 --- a/drivers/platform/x86/eeepc-wmi.c +++ b/drivers/platform/x86/eeepc-wmi.c @@ -33,7 +33,7 @@ #include <linux/input/sparse-keymap.h> #include <linux/dmi.h> #include <linux/fb.h> -#include <acpi/acpi_bus.h> +#include <linux/acpi.h> #include "asus-wmi.h" diff --git a/drivers/platform/x86/hp_accel.c b/drivers/platform/x86/hp_accel.c index a8e43cf70fac..aff4d0670edf 100644 --- a/drivers/platform/x86/hp_accel.c +++ b/drivers/platform/x86/hp_accel.c @@ -36,7 +36,7 @@ #include <linux/uaccess.h> #include <linux/leds.h> #include <linux/atomic.h> -#include <acpi/acpi_drivers.h> +#include <linux/acpi.h> #include "../../misc/lis3lv02d/lis3lv02d.h" #define DRIVER_NAME "hp_accel" diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/ideapad-laptop.c index 19ec95147f69..6dd060a0bb65 100644 --- a/drivers/platform/x86/ideapad-laptop.c +++ b/drivers/platform/x86/ideapad-laptop.c @@ -26,8 +26,7 @@ #include <linux/module.h> #include <linux/init.h> #include <linux/types.h> -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> +#include <linux/acpi.h> #include <linux/rfkill.h> #include <linux/platform_device.h> #include <linux/input.h> diff --git a/drivers/platform/x86/intel-rst.c b/drivers/platform/x86/intel-rst.c index a2083a9e5662..d45bca34bf1b 100644 --- a/drivers/platform/x86/intel-rst.c +++ b/drivers/platform/x86/intel-rst.c @@ -20,7 +20,7 @@ #include <linux/init.h> #include <linux/module.h> #include <linux/slab.h> -#include <acpi/acpi_drivers.h> +#include <linux/acpi.h> MODULE_LICENSE("GPL"); diff --git a/drivers/platform/x86/intel-smartconnect.c b/drivers/platform/x86/intel-smartconnect.c index 1838400dc036..04cf5dffdfd9 100644 --- a/drivers/platform/x86/intel-smartconnect.c +++ b/drivers/platform/x86/intel-smartconnect.c @@ -19,7 +19,7 @@ #include <linux/init.h> #include <linux/module.h> -#include <acpi/acpi_drivers.h> +#include <linux/acpi.h> MODULE_LICENSE("GPL"); diff --git a/drivers/platform/x86/intel_menlow.c b/drivers/platform/x86/intel_menlow.c index 11244f8703c4..e8b46d2c468c 100644 --- a/drivers/platform/x86/intel_menlow.c +++ b/drivers/platform/x86/intel_menlow.c @@ -36,10 +36,8 @@ #include <linux/types.h> #include <linux/pci.h> #include <linux/pm.h> - #include <linux/thermal.h> -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> +#include <linux/acpi.h> MODULE_AUTHOR("Thomas Sujith"); MODULE_AUTHOR("Zhang Rui"); diff --git a/drivers/platform/x86/intel_oaktrail.c b/drivers/platform/x86/intel_oaktrail.c index f6f18cde0f11..4bc960416785 100644 --- a/drivers/platform/x86/intel_oaktrail.c +++ b/drivers/platform/x86/intel_oaktrail.c @@ -50,9 +50,6 @@ #include <linux/platform_device.h> #include <linux/dmi.h> #include <linux/rfkill.h> -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> - #define DRIVER_NAME "intel_oaktrail" #define DRIVER_VERSION "0.4ac1" diff --git a/drivers/platform/x86/mxm-wmi.c b/drivers/platform/x86/mxm-wmi.c index 0aea63b3729a..3c59c0a3ee0f 100644 --- a/drivers/platform/x86/mxm-wmi.c +++ b/drivers/platform/x86/mxm-wmi.c @@ -20,8 +20,7 @@ #include <linux/kernel.h> #include <linux/module.h> #include <linux/init.h> -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> +#include <linux/acpi.h> MODULE_AUTHOR("Dave Airlie"); MODULE_DESCRIPTION("MXM WMI Driver"); diff --git a/drivers/platform/x86/panasonic-laptop.c b/drivers/platform/x86/panasonic-laptop.c index 3008fd20572e..609d38779b26 100644 --- a/drivers/platform/x86/panasonic-laptop.c +++ b/drivers/platform/x86/panasonic-laptop.c @@ -125,12 +125,10 @@ #include <linux/seq_file.h> #include <linux/uaccess.h> #include <linux/slab.h> -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> +#include <linux/acpi.h> #include <linux/input.h> #include <linux/input/sparse-keymap.h> - #ifndef ACPI_HOTKEY_COMPONENT #define ACPI_HOTKEY_COMPONENT 0x10000000 #endif diff --git a/drivers/platform/x86/pvpanic.c b/drivers/platform/x86/pvpanic.c index 47ae0c47d4b5..c9f6e511daa6 100644 --- a/drivers/platform/x86/pvpanic.c +++ b/drivers/platform/x86/pvpanic.c @@ -24,8 +24,7 @@ #include <linux/module.h> #include <linux/init.h> #include <linux/types.h> -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> +#include <linux/acpi.h> MODULE_AUTHOR("Hu Tao <hutao@cn.fujitsu.com>"); MODULE_DESCRIPTION("pvpanic device driver"); diff --git a/drivers/platform/x86/samsung-q10.c b/drivers/platform/x86/samsung-q10.c index cae7098e9b0d..5413f62d2e61 100644 --- a/drivers/platform/x86/samsung-q10.c +++ b/drivers/platform/x86/samsung-q10.c @@ -15,7 +15,7 @@ #include <linux/platform_device.h> #include <linux/backlight.h> #include <linux/dmi.h> -#include <acpi/acpi_drivers.h> +#include <linux/acpi.h> #define SAMSUNGQ10_BL_MAX_INTENSITY 7 diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c index fb233ae7bb0e..563e4f595f83 100644 --- a/drivers/platform/x86/sony-laptop.c +++ b/drivers/platform/x86/sony-laptop.c @@ -61,9 +61,6 @@ #include <linux/workqueue.h> #include <linux/acpi.h> #include <linux/slab.h> -#include <acpi/acpi_drivers.h> -#include <acpi/acpi_bus.h> -#include <asm/uaccess.h> #include <linux/sonypi.h> #include <linux/sony-laptop.h> #include <linux/rfkill.h> @@ -71,6 +68,7 @@ #include <linux/poll.h> #include <linux/miscdevice.h> #endif +#include <asm/uaccess.h> #define dprintk(fmt, ...) \ do { \ diff --git a/drivers/platform/x86/tc1100-wmi.c b/drivers/platform/x86/tc1100-wmi.c index 9b93fdb61ed7..6a6ea28a7e51 100644 --- a/drivers/platform/x86/tc1100-wmi.c +++ b/drivers/platform/x86/tc1100-wmi.c @@ -32,9 +32,7 @@ #include <linux/slab.h> #include <linux/init.h> #include <linux/types.h> -#include <acpi/acpi.h> -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> +#include <linux/acpi.h> #include <linux/platform_device.h> #define GUID "C364AC71-36DB-495A-8494-B439D472A505" diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c index 58b0274d24cc..defb6afc1409 100644 --- a/drivers/platform/x86/thinkpad_acpi.c +++ b/drivers/platform/x86/thinkpad_acpi.c @@ -61,7 +61,6 @@ #include <linux/freezer.h> #include <linux/delay.h> #include <linux/slab.h> - #include <linux/nvram.h> #include <linux/proc_fs.h> #include <linux/seq_file.h> @@ -74,21 +73,16 @@ #include <linux/input.h> #include <linux/leds.h> #include <linux/rfkill.h> -#include <asm/uaccess.h> - #include <linux/dmi.h> #include <linux/jiffies.h> #include <linux/workqueue.h> - +#include <linux/acpi.h> +#include <linux/pci_ids.h> +#include <linux/thinkpad_acpi.h> #include <sound/core.h> #include <sound/control.h> #include <sound/initval.h> - -#include <acpi/acpi_drivers.h> - -#include <linux/pci_ids.h> - -#include <linux/thinkpad_acpi.h> +#include <asm/uaccess.h> /* ThinkPad CMOS commands */ #define TP_CMOS_VOLUME_DOWN 0 diff --git a/drivers/platform/x86/toshiba_acpi.c b/drivers/platform/x86/toshiba_acpi.c index 7fce391818d3..7ad1ed091f92 100644 --- a/drivers/platform/x86/toshiba_acpi.c +++ b/drivers/platform/x86/toshiba_acpi.c @@ -54,11 +54,9 @@ #include <linux/slab.h> #include <linux/workqueue.h> #include <linux/i8042.h> - +#include <linux/acpi.h> #include <asm/uaccess.h> -#include <acpi/acpi_drivers.h> - MODULE_AUTHOR("John Belmonte"); MODULE_DESCRIPTION("Toshiba Laptop ACPI Extras Driver"); MODULE_LICENSE("GPL"); diff --git a/drivers/platform/x86/toshiba_bluetooth.c b/drivers/platform/x86/toshiba_bluetooth.c index 74dd01ae343b..2cb1ea62b4a7 100644 --- a/drivers/platform/x86/toshiba_bluetooth.c +++ b/drivers/platform/x86/toshiba_bluetooth.c @@ -23,14 +23,12 @@ #include <linux/module.h> #include <linux/init.h> #include <linux/types.h> -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> +#include <linux/acpi.h> MODULE_AUTHOR("Jes Sorensen <Jes.Sorensen@gmail.com>"); MODULE_DESCRIPTION("Toshiba Laptop ACPI Bluetooth Enable Driver"); MODULE_LICENSE("GPL"); - static int toshiba_bt_rfkill_add(struct acpi_device *device); static int toshiba_bt_rfkill_remove(struct acpi_device *device); static void toshiba_bt_rfkill_notify(struct acpi_device *device, u32 event); diff --git a/drivers/platform/x86/wmi.c b/drivers/platform/x86/wmi.c index c2e7b2657aeb..43d13295e63d 100644 --- a/drivers/platform/x86/wmi.c +++ b/drivers/platform/x86/wmi.c @@ -37,8 +37,6 @@ #include <linux/acpi.h> #include <linux/slab.h> #include <linux/module.h> -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> ACPI_MODULE_NAME("wmi"); MODULE_AUTHOR("Carlos Corbacho"); diff --git a/drivers/platform/x86/xo15-ebook.c b/drivers/platform/x86/xo15-ebook.c index 4b1377bd5944..49cbccec6e2d 100644 --- a/drivers/platform/x86/xo15-ebook.c +++ b/drivers/platform/x86/xo15-ebook.c @@ -18,8 +18,7 @@ #include <linux/init.h> #include <linux/types.h> #include <linux/input.h> -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> +#include <linux/acpi.h> #define MODULE_NAME "xo15-ebook" diff --git a/drivers/pnp/card.c b/drivers/pnp/card.c index bc00693d0c79..874c236ac1a7 100644 --- a/drivers/pnp/card.c +++ b/drivers/pnp/card.c @@ -239,6 +239,7 @@ int pnp_add_card(struct pnp_card *card) error = device_register(&card->dev); if (error) { dev_err(&card->dev, "could not register (err=%d)\n", error); + put_device(&card->dev); return error; } diff --git a/drivers/pnp/pnpacpi/core.c b/drivers/pnp/pnpacpi/core.c index 14655a0f0431..9f611cbbc294 100644 --- a/drivers/pnp/pnpacpi/core.c +++ b/drivers/pnp/pnpacpi/core.c @@ -24,7 +24,6 @@ #include <linux/pnp.h> #include <linux/slab.h> #include <linux/mod_devicetable.h> -#include <acpi/acpi_bus.h> #include "../base.h" #include "pnpacpi.h" @@ -242,6 +241,7 @@ static int __init pnpacpi_add_device(struct acpi_device *device) struct pnp_dev *dev; char *pnpid; struct acpi_hardware_id *id; + int error; /* Skip devices that are already bound */ if (device->physical_node_count) @@ -300,10 +300,16 @@ static int __init pnpacpi_add_device(struct acpi_device *device) /* clear out the damaged flags */ if (!dev->active) pnp_init_resources(dev); - pnp_add_device(dev); + + error = pnp_add_device(dev); + if (error) { + put_device(&dev->dev); + return error; + } + num++; - return AE_OK; + return 0; } static acpi_status __init pnpacpi_add_device_handler(acpi_handle handle, @@ -329,20 +335,15 @@ static int __init acpi_pnp_match(struct device *dev, void *_pnp) && compare_pnp_id(pnp->id, acpi_device_hid(acpi)); } -static int __init acpi_pnp_find_device(struct device *dev, acpi_handle * handle) +static struct acpi_device * __init acpi_pnp_find_companion(struct device *dev) { - struct device *adev; - struct acpi_device *acpi; - - adev = bus_find_device(&acpi_bus_type, NULL, - to_pnp_dev(dev), acpi_pnp_match); - if (!adev) - return -ENODEV; + dev = bus_find_device(&acpi_bus_type, NULL, to_pnp_dev(dev), + acpi_pnp_match); + if (!dev) + return NULL; - acpi = to_acpi_device(adev); - *handle = acpi->handle; - put_device(adev); - return 0; + put_device(dev); + return to_acpi_device(dev); } /* complete initialization of a PNPACPI device includes having @@ -356,7 +357,7 @@ static bool acpi_pnp_bus_match(struct device *dev) static struct acpi_bus_type __initdata acpi_pnp_bus = { .name = "PNP", .match = acpi_pnp_bus_match, - .find_device = acpi_pnp_find_device, + .find_companion = acpi_pnp_find_companion, }; int pnpacpi_disabled __initdata; diff --git a/drivers/pnp/pnpacpi/pnpacpi.h b/drivers/pnp/pnpacpi/pnpacpi.h index 3e60225b0227..051ef9699777 100644 --- a/drivers/pnp/pnpacpi/pnpacpi.h +++ b/drivers/pnp/pnpacpi/pnpacpi.h @@ -1,7 +1,6 @@ #ifndef ACPI_PNP_H #define ACPI_PNP_H -#include <acpi/acpi_bus.h> #include <linux/acpi.h> #include <linux/pnp.h> diff --git a/drivers/pnp/pnpbios/core.c b/drivers/pnp/pnpbios/core.c index 9b86a01af631..074569e77d22 100644 --- a/drivers/pnp/pnpbios/core.c +++ b/drivers/pnp/pnpbios/core.c @@ -312,18 +312,19 @@ static int __init insert_device(struct pnp_bios_node *node) struct list_head *pos; struct pnp_dev *dev; char id[8]; + int error; /* check if the device is already added */ list_for_each(pos, &pnpbios_protocol.devices) { dev = list_entry(pos, struct pnp_dev, protocol_list); if (dev->number == node->handle) - return -1; + return -EEXIST; } pnp_eisa_id_to_string(node->eisa_id & PNP_EISA_ID_MASK, id); dev = pnp_alloc_dev(&pnpbios_protocol, node->handle, id); if (!dev) - return -1; + return -ENOMEM; pnpbios_parse_data_stream(dev, node); dev->active = pnp_is_active(dev); @@ -342,7 +343,12 @@ static int __init insert_device(struct pnp_bios_node *node) if (!dev->active) pnp_init_resources(dev); - pnp_add_device(dev); + error = pnp_add_device(dev); + if (error) { + put_device(&dev->dev); + return error; + } + pnpbios_interface_attach_device(node); return 0; diff --git a/drivers/pnp/resource.c b/drivers/pnp/resource.c index d95e101ffb43..bacddd102ae9 100644 --- a/drivers/pnp/resource.c +++ b/drivers/pnp/resource.c @@ -31,7 +31,7 @@ static int pnp_reserve_mem[16] = {[0 ... 15] = -1 }; /* reserve (don't use) some * option registration */ -struct pnp_option *pnp_build_option(struct pnp_dev *dev, unsigned long type, +static struct pnp_option *pnp_build_option(struct pnp_dev *dev, unsigned long type, unsigned int option_flags) { struct pnp_option *option; diff --git a/drivers/sfi/sfi_acpi.c b/drivers/sfi/sfi_acpi.c index f5b4ca581541..d277b36eb389 100644 --- a/drivers/sfi/sfi_acpi.c +++ b/drivers/sfi/sfi_acpi.c @@ -60,9 +60,7 @@ #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt #include <linux/kernel.h> -#include <acpi/acpi.h> - -#include <linux/sfi.h> +#include <linux/sfi_acpi.h> #include "sfi_core.h" /* diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c index 349ebba4b199..827ff49d3d4f 100644 --- a/drivers/spi/spi.c +++ b/drivers/spi/spi.c @@ -58,6 +58,11 @@ static ssize_t modalias_show(struct device *dev, struct device_attribute *a, char *buf) { const struct spi_device *spi = to_spi_device(dev); + int len; + + len = acpi_device_modalias(dev, buf, PAGE_SIZE - 1); + if (len != -ENODEV) + return len; return sprintf(buf, "%s%s\n", SPI_MODULE_PREFIX, spi->modalias); } @@ -114,6 +119,11 @@ static int spi_match_device(struct device *dev, struct device_driver *drv) static int spi_uevent(struct device *dev, struct kobj_uevent_env *env) { const struct spi_device *spi = to_spi_device(dev); + int rc; + + rc = acpi_device_uevent_modalias(dev, env); + if (rc != -ENODEV) + return rc; add_uevent_var(env, "MODALIAS=%s%s", SPI_MODULE_PREFIX, spi->modalias); return 0; diff --git a/drivers/staging/quickstart/quickstart.c b/drivers/staging/quickstart/quickstart.c index 9f6ebdb23740..a85c3d68c462 100644 --- a/drivers/staging/quickstart/quickstart.c +++ b/drivers/staging/quickstart/quickstart.c @@ -31,7 +31,7 @@ #include <linux/module.h> #include <linux/init.h> #include <linux/types.h> -#include <acpi/acpi_drivers.h> +#include <linux/acpi.h> #include <linux/platform_device.h> #include <linux/input.h> diff --git a/drivers/usb/core/usb-acpi.c b/drivers/usb/core/usb-acpi.c index 4e243c37f17f..f0155a39aaa3 100644 --- a/drivers/usb/core/usb-acpi.c +++ b/drivers/usb/core/usb-acpi.c @@ -16,7 +16,6 @@ #include <linux/acpi.h> #include <linux/pci.h> #include <linux/usb/hcd.h> -#include <acpi/acpi_bus.h> #include "usb.h" @@ -127,7 +126,7 @@ out: return ret; } -static int usb_acpi_find_device(struct device *dev, acpi_handle *handle) +static struct acpi_device *usb_acpi_find_companion(struct device *dev) { struct usb_device *udev; acpi_handle *parent_handle; @@ -169,16 +168,15 @@ static int usb_acpi_find_device(struct device *dev, acpi_handle *handle) break; } - return -ENODEV; + return NULL; } /* root hub's parent is the usb hcd. */ - parent_handle = ACPI_HANDLE(dev->parent); - *handle = acpi_get_child(parent_handle, udev->portnum); - if (!*handle) - return -ENODEV; - return 0; + return acpi_find_child_device(ACPI_COMPANION(dev->parent), + udev->portnum, false); } else if (is_usb_port(dev)) { + struct acpi_device *adev = NULL; + sscanf(dev_name(dev), "port%d", &port_num); /* Get the struct usb_device point of port's hub */ udev = to_usb_device(dev->parent->parent); @@ -194,26 +192,27 @@ static int usb_acpi_find_device(struct device *dev, acpi_handle *handle) raw_port_num = usb_hcd_find_raw_port_number(hcd, port_num); - *handle = acpi_get_child(ACPI_HANDLE(&udev->dev), - raw_port_num); - if (!*handle) - return -ENODEV; + adev = acpi_find_child_device(ACPI_COMPANION(&udev->dev), + raw_port_num, false); + if (!adev) + return NULL; } else { parent_handle = usb_get_hub_port_acpi_handle(udev->parent, udev->portnum); if (!parent_handle) - return -ENODEV; + return NULL; - *handle = acpi_get_child(parent_handle, port_num); - if (!*handle) - return -ENODEV; + acpi_bus_get_device(parent_handle, &adev); + adev = acpi_find_child_device(adev, port_num, false); + if (!adev) + return NULL; } - usb_acpi_check_port_connect_type(udev, *handle, port_num); - } else - return -ENODEV; + usb_acpi_check_port_connect_type(udev, adev->handle, port_num); + return adev; + } - return 0; + return NULL; } static bool usb_acpi_bus_match(struct device *dev) @@ -224,7 +223,7 @@ static bool usb_acpi_bus_match(struct device *dev) static struct acpi_bus_type usb_acpi_bus = { .name = "USB", .match = usb_acpi_bus_match, - .find_device = usb_acpi_find_device, + .find_companion = usb_acpi_find_companion, }; int usb_acpi_register(void) diff --git a/drivers/xen/xen-acpi-cpuhotplug.c b/drivers/xen/xen-acpi-cpuhotplug.c index 8dae6c13063a..80875fb770ed 100644 --- a/drivers/xen/xen-acpi-cpuhotplug.c +++ b/drivers/xen/xen-acpi-cpuhotplug.c @@ -24,10 +24,7 @@ #include <linux/cpu.h> #include <linux/acpi.h> #include <linux/uaccess.h> -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> #include <acpi/processor.h> - #include <xen/acpi.h> #include <xen/interface/platform.h> #include <asm/xen/hypercall.h> @@ -269,7 +266,8 @@ static void acpi_processor_hotplug_notify(acpi_handle handle, if (!is_processor_present(handle)) break; - if (!acpi_bus_get_device(handle, &device)) + acpi_bus_get_device(handle, &device); + if (acpi_device_enumerated(device)) break; result = acpi_bus_scan(handle); @@ -277,8 +275,9 @@ static void acpi_processor_hotplug_notify(acpi_handle handle, pr_err(PREFIX "Unable to add the device\n"); break; } - result = acpi_bus_get_device(handle, &device); - if (result) { + device = NULL; + acpi_bus_get_device(handle, &device); + if (!acpi_device_enumerated(device)) { pr_err(PREFIX "Missing device object\n"); break; } diff --git a/drivers/xen/xen-acpi-memhotplug.c b/drivers/xen/xen-acpi-memhotplug.c index 9083f1e474f8..f8d18626969a 100644 --- a/drivers/xen/xen-acpi-memhotplug.c +++ b/drivers/xen/xen-acpi-memhotplug.c @@ -22,7 +22,6 @@ #include <linux/init.h> #include <linux/types.h> #include <linux/acpi.h> -#include <acpi/acpi_drivers.h> #include <xen/acpi.h> #include <xen/interface/platform.h> #include <asm/xen/hypercall.h> @@ -169,7 +168,7 @@ static int acpi_memory_get_device(acpi_handle handle, acpi_scan_lock_acquire(); acpi_bus_get_device(handle, &device); - if (device) + if (acpi_device_enumerated(device)) goto end; /* @@ -182,8 +181,9 @@ static int acpi_memory_get_device(acpi_handle handle, result = -EINVAL; goto out; } - result = acpi_bus_get_device(handle, &device); - if (result) { + device = NULL; + acpi_bus_get_device(handle, &device); + if (!acpi_device_enumerated(device)) { pr_warn(PREFIX "Missing device object\n"); result = -EINVAL; goto out; diff --git a/drivers/xen/xen-acpi-pad.c b/drivers/xen/xen-acpi-pad.c index 59708fdd068b..40c4bc06b5fa 100644 --- a/drivers/xen/xen-acpi-pad.c +++ b/drivers/xen/xen-acpi-pad.c @@ -18,11 +18,10 @@ #include <linux/kernel.h> #include <linux/types.h> -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> -#include <asm/xen/hypercall.h> +#include <linux/acpi.h> #include <xen/interface/version.h> #include <xen/xen-ops.h> +#include <asm/xen/hypercall.h> #define ACPI_PROCESSOR_AGGREGATOR_CLASS "acpi_pad" #define ACPI_PROCESSOR_AGGREGATOR_DEVICE_NAME "Processor Aggregator" diff --git a/drivers/xen/xen-acpi-processor.c b/drivers/xen/xen-acpi-processor.c index 13bc6c31c060..7231859119f1 100644 --- a/drivers/xen/xen-acpi-processor.c +++ b/drivers/xen/xen-acpi-processor.c @@ -28,10 +28,8 @@ #include <linux/module.h> #include <linux/types.h> #include <linux/syscore_ops.h> -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> +#include <linux/acpi.h> #include <acpi/processor.h> - #include <xen/xen.h> #include <xen/interface/platform.h> #include <asm/xen/hypercall.h> diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h index ddabed1f51c2..8256eb4ad057 100644 --- a/include/acpi/acpi_bus.h +++ b/include/acpi/acpi_bus.h @@ -28,8 +28,6 @@ #include <linux/device.h> -#include <acpi/acpi.h> - /* TBD: Make dynamic */ #define ACPI_MAX_HANDLES 10 struct acpi_handle_list { @@ -66,6 +64,32 @@ bool acpi_ata_match(acpi_handle handle); bool acpi_bay_match(acpi_handle handle); bool acpi_dock_match(acpi_handle handle); +bool acpi_check_dsm(acpi_handle handle, const u8 *uuid, int rev, u64 funcs); +union acpi_object *acpi_evaluate_dsm(acpi_handle handle, const u8 *uuid, + int rev, int func, union acpi_object *argv4); + +static inline union acpi_object * +acpi_evaluate_dsm_typed(acpi_handle handle, const u8 *uuid, int rev, int func, + union acpi_object *argv4, acpi_object_type type) +{ + union acpi_object *obj; + + obj = acpi_evaluate_dsm(handle, uuid, rev, func, argv4); + if (obj && obj->type != type) { + ACPI_FREE(obj); + obj = NULL; + } + + return obj; +} + +#define ACPI_INIT_DSM_ARGV4(cnt, eles) \ + { \ + .package.type = ACPI_TYPE_PACKAGE, \ + .package.count = (cnt), \ + .package.elements = (eles) \ + } + #ifdef CONFIG_ACPI #include <linux/proc_fs.h> @@ -91,17 +115,11 @@ struct acpi_device; * ----------------- */ -enum acpi_hotplug_mode { - AHM_GENERIC = 0, - AHM_CONTAINER, - AHM_COUNT -}; - struct acpi_hotplug_profile { struct kobject kobj; + int (*scan_dependent)(struct acpi_device *adev); bool enabled:1; - bool ignore:1; - enum acpi_hotplug_mode mode; + bool demand_offline:1; }; static inline struct acpi_hotplug_profile *to_acpi_hotplug_profile( @@ -169,8 +187,10 @@ struct acpi_device_flags { u32 ejectable:1; u32 power_manageable:1; u32 match_driver:1; + u32 initialized:1; + u32 visited:1; u32 no_hotplug:1; - u32 reserved:26; + u32 reserved:24; }; /* File System */ @@ -300,6 +320,7 @@ struct acpi_device { struct list_head children; struct list_head node; struct list_head wakeup_list; + struct list_head del_list; struct acpi_device_status status; struct acpi_device_flags flags; struct acpi_device_pnp pnp; @@ -325,6 +346,11 @@ static inline void *acpi_driver_data(struct acpi_device *d) #define to_acpi_device(d) container_of(d, struct acpi_device, dev) #define to_acpi_driver(d) container_of(d, struct acpi_driver, drv) +static inline void acpi_set_device_status(struct acpi_device *adev, u32 sta) +{ + *((u32 *)&adev->status) = sta; +} + /* acpi_device.dev.bus == &acpi_bus_type */ extern struct bus_type acpi_bus_type; @@ -387,6 +413,11 @@ int acpi_match_device_ids(struct acpi_device *device, int acpi_create_dir(struct acpi_device *); void acpi_remove_dir(struct acpi_device *); +static inline bool acpi_device_enumerated(struct acpi_device *adev) +{ + return adev && adev->flags.initialized && adev->flags.visited; +} + typedef void (*acpi_hp_callback)(void *data, u32 src); acpi_status acpi_hotplug_execute(acpi_hp_callback func, void *data, u32 src); @@ -410,7 +441,7 @@ struct acpi_bus_type { struct list_head list; const char *name; bool (*match)(struct device *dev); - int (*find_device) (struct device *, acpi_handle *); + struct acpi_device * (*find_companion)(struct device *); void (*setup)(struct device *); void (*cleanup)(struct device *); }; @@ -429,12 +460,9 @@ struct acpi_pci_root { }; /* helper */ -acpi_handle acpi_find_child(acpi_handle, u64, bool); -static inline acpi_handle acpi_get_child(acpi_handle handle, u64 addr) -{ - return acpi_find_child(handle, addr, false); -} -void acpi_preset_companion(struct device *dev, acpi_handle parent, u64 addr); + +struct acpi_device *acpi_find_child_device(struct acpi_device *parent, + u64 address, bool check_children); int acpi_is_root_bridge(acpi_handle); struct acpi_pci_root *acpi_pci_find_root(acpi_handle handle); diff --git a/include/acpi/acpi_drivers.h b/include/acpi/acpi_drivers.h index 1cedfcb1bd88..b124fdb26046 100644 --- a/include/acpi/acpi_drivers.h +++ b/include/acpi/acpi_drivers.h @@ -26,9 +26,6 @@ #ifndef __ACPI_DRIVERS_H__ #define __ACPI_DRIVERS_H__ -#include <linux/acpi.h> -#include <acpi/acpi_bus.h> - #define ACPI_MAX_STRING 80 /* diff --git a/include/linux/acpi_io.h b/include/acpi/acpi_io.h index b0ffa219993e..2be858018c7f 100644 --- a/include/linux/acpi_io.h +++ b/include/acpi/acpi_io.h @@ -2,7 +2,6 @@ #define _ACPI_IO_H_ #include <linux/io.h> -#include <acpi/acpi.h> static inline void __iomem *acpi_os_ioremap(acpi_physical_address phys, acpi_size size) diff --git a/include/acpi/acpixf.h b/include/acpi/acpixf.h index 4278aba96503..d2f16f14b419 100644 --- a/include/acpi/acpixf.h +++ b/include/acpi/acpixf.h @@ -46,7 +46,7 @@ /* Current ACPICA subsystem version in YYYYMMDD format */ -#define ACPI_CA_VERSION 0x20131115 +#define ACPI_CA_VERSION 0x20131218 #include <acpi/acconfig.h> #include <acpi/actypes.h> @@ -54,7 +54,6 @@ #include <acpi/acbuffer.h> extern u8 acpi_gbl_permanent_mmap; -extern u32 acpi_rsdt_forced; /* * Globals that are publically available @@ -72,17 +71,19 @@ extern u32 acpi_dbg_layer; /* ACPICA runtime options */ -extern u8 acpi_gbl_enable_interpreter_slack; extern u8 acpi_gbl_all_methods_serialized; -extern u8 acpi_gbl_create_osi_method; -extern u8 acpi_gbl_use_default_register_widths; -extern acpi_name acpi_gbl_trace_method_name; -extern u32 acpi_gbl_trace_flags; -extern bool acpi_gbl_enable_aml_debug_object; extern u8 acpi_gbl_copy_dsdt_locally; -extern u8 acpi_gbl_truncate_io_addresses; +extern u8 acpi_gbl_create_osi_method; extern u8 acpi_gbl_disable_auto_repair; extern u8 acpi_gbl_disable_ssdt_table_load; +extern u8 acpi_gbl_do_not_use_xsdt; +extern bool acpi_gbl_enable_aml_debug_object; +extern u8 acpi_gbl_enable_interpreter_slack; +extern u32 acpi_gbl_trace_flags; +extern acpi_name acpi_gbl_trace_method_name; +extern u8 acpi_gbl_truncate_io_addresses; +extern u8 acpi_gbl_use32_bit_fadt_addresses; +extern u8 acpi_gbl_use_default_register_widths; /* * Hardware-reduced prototypes. All interfaces that use these macros will @@ -130,10 +131,9 @@ acpi_status __init acpi_terminate(void); * Miscellaneous global interfaces */ ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_enable(void)) - ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_disable(void)) #ifdef ACPI_FUTURE_USAGE - acpi_status acpi_subsystem_status(void); +acpi_status acpi_subsystem_status(void); #endif #ifdef ACPI_FUTURE_USAGE @@ -278,16 +278,13 @@ ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_install_sci_handler(acpi_sci_handler address, void *context)) - ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_remove_sci_handler(acpi_sci_handler address)) - ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_install_global_event_handler (acpi_gbl_event_handler handler, void *context)) - ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_install_fixed_event_handler(u32 acpi_event, @@ -295,12 +292,10 @@ ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status handler, void *context)) - ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_remove_fixed_event_handler(u32 acpi_event, acpi_event_handler handler)) - ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_install_gpe_handler(acpi_handle gpe_device, @@ -309,15 +304,14 @@ ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_gpe_handler address, void *context)) - ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_remove_gpe_handler(acpi_handle gpe_device, u32 gpe_number, acpi_gpe_handler address)) acpi_status acpi_install_notify_handler(acpi_handle device, u32 handler_type, - acpi_notify_handler handler, - void *context); + acpi_notify_handler handler, + void *context); acpi_status acpi_remove_notify_handler(acpi_handle device, @@ -366,7 +360,6 @@ ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_disable_event(u32 event, u32 flags)) - ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_clear_event(u32 event)) ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status @@ -404,20 +397,16 @@ ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status parent_device, acpi_handle gpe_device, u32 gpe_number)) - ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_set_gpe_wake_mask(acpi_handle gpe_device, u32 gpe_number, u8 action)) - ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_get_gpe_status(acpi_handle gpe_device, u32 gpe_number, acpi_event_status *event_status)) - ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_disable_all_gpes(void)) - ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_enable_all_runtime_gpes(void)) ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status @@ -431,7 +420,6 @@ ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status *gpe_block_address, u32 register_count, u32 interrupt_number)) - ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_remove_gpe_block(acpi_handle gpe_device)) @@ -532,7 +520,6 @@ ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status #ifdef ACPI_FUTURE_USAGE ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_get_timer_resolution(u32 *resolution)) - ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status acpi_get_timer(u32 *ticks)) ACPI_HW_DEPENDENT_RETURN_STATUS(acpi_status diff --git a/include/acpi/actbl.h b/include/acpi/actbl.h index 94970880126f..325aeae1fa99 100644 --- a/include/acpi/actbl.h +++ b/include/acpi/actbl.h @@ -182,6 +182,9 @@ struct acpi_table_xsdt { u64 table_offset_entry[1]; /* Array of pointers to ACPI tables */ }; +#define ACPI_RSDT_ENTRY_SIZE (sizeof (u32)) +#define ACPI_XSDT_ENTRY_SIZE (sizeof (u64)) + /******************************************************************************* * * FACS - Firmware ACPI Control Structure (FACS) diff --git a/include/acpi/actbl1.h b/include/acpi/actbl1.h index 556c83ee6b42..4ec8c194bfe5 100644 --- a/include/acpi/actbl1.h +++ b/include/acpi/actbl1.h @@ -457,7 +457,7 @@ struct acpi_hest_aer_common { u8 enabled; u32 records_to_preallocate; u32 max_sections_per_record; - u32 bus; + u32 bus; /* Bus and Segment numbers */ u16 device; u16 function; u16 device_control; @@ -473,6 +473,14 @@ struct acpi_hest_aer_common { #define ACPI_HEST_FIRMWARE_FIRST (1) #define ACPI_HEST_GLOBAL (1<<1) +/* + * Macros to access the bus/segment numbers in Bus field above: + * Bus number is encoded in bits 7:0 + * Segment number is encoded in bits 23:8 + */ +#define ACPI_HEST_BUS(bus) ((bus) & 0xFF) +#define ACPI_HEST_SEGMENT(bus) (((bus) >> 8) & 0xFFFF) + /* Hardware Error Notification */ struct acpi_hest_notify { diff --git a/include/acpi/actbl2.h b/include/acpi/actbl2.h index 40f7ed115452..094a906a0e98 100644 --- a/include/acpi/actbl2.h +++ b/include/acpi/actbl2.h @@ -327,6 +327,11 @@ struct acpi_table_dbg2 { u32 info_count; }; +struct acpi_dbg2_header { + u32 info_offset; + u32 info_count; +}; + /* Debug Device Information Subtable */ struct acpi_dbg2_device { diff --git a/include/acpi/actbl3.h b/include/acpi/actbl3.h index e2c0931a3d67..01c2a9013e40 100644 --- a/include/acpi/actbl3.h +++ b/include/acpi/actbl3.h @@ -374,16 +374,22 @@ struct acpi_mpst_shared { struct acpi_table_pcct { struct acpi_table_header header; /* Common ACPI table header */ u32 flags; - u32 latency; - u32 reserved; + u64 reserved; }; /* Values for Flags field above */ #define ACPI_PCCT_DOORBELL 1 +/* Values for subtable type in struct acpi_subtable_header */ + +enum acpi_pcct_type { + ACPI_PCCT_TYPE_GENERIC_SUBSPACE = 0, + ACPI_PCCT_TYPE_RESERVED = 1 /* 1 and greater are reserved */ +}; + /* - * PCCT subtables + * PCCT Subtables, correspond to Type in struct acpi_subtable_header */ /* 0: Generic Communications Subspace */ @@ -396,6 +402,9 @@ struct acpi_pcct_subspace { struct acpi_generic_address doorbell_register; u64 preserve_mask; u64 write_mask; + u32 latency; + u32 max_access_rate; + u16 min_turnaround_time; }; /* diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h index 809b1a0fee7f..68a3ada689c9 100644 --- a/include/acpi/actypes.h +++ b/include/acpi/actypes.h @@ -928,8 +928,8 @@ struct acpi_object_list { * Miscellaneous common Data Structures used by the interfaces */ #define ACPI_NO_BUFFER 0 -#define ACPI_ALLOCATE_BUFFER (acpi_size) (-1) -#define ACPI_ALLOCATE_LOCAL_BUFFER (acpi_size) (-2) +#define ACPI_ALLOCATE_BUFFER (acpi_size) (-1) /* Let ACPICA allocate buffer */ +#define ACPI_ALLOCATE_LOCAL_BUFFER (acpi_size) (-2) /* For internal use only (enables tracking) */ struct acpi_buffer { acpi_size length; /* Length in bytes of the buffer */ @@ -937,14 +937,6 @@ struct acpi_buffer { }; /* - * Free a buffer created in an struct acpi_buffer via ACPI_ALLOCATE_BUFFER. - * Note: We use acpi_os_free here because acpi_os_allocate was used to allocate - * the buffer. This purposefully bypasses the internal allocation tracking - * mechanism (if it is enabled). - */ -#define ACPI_FREE_BUFFER(b) acpi_os_free((b).pointer) - -/* * name_type for acpi_get_name */ #define ACPI_FULL_PATHNAME 0 diff --git a/include/acpi/platform/acenv.h b/include/acpi/platform/acenv.h index 974d3ef7c141..b402eb67af83 100644 --- a/include/acpi/platform/acenv.h +++ b/include/acpi/platform/acenv.h @@ -96,13 +96,14 @@ #endif /* - * acpi_bin/acpi_dump/acpi_src/acpi_xtract configuration. All single + * acpi_bin/acpi_dump/acpi_src/acpi_xtract/Example configuration. All single * threaded, with no debug output. */ -#if (defined ACPI_BIN_APP) || \ - (defined ACPI_DUMP_APP) || \ - (defined ACPI_SRC_APP) || \ - (defined ACPI_XTRACT_APP) +#if (defined ACPI_BIN_APP) || \ + (defined ACPI_DUMP_APP) || \ + (defined ACPI_SRC_APP) || \ + (defined ACPI_XTRACT_APP) || \ + (defined ACPI_EXAMPLE_APP) #define ACPI_APPLICATION #define ACPI_SINGLE_THREADED #endif @@ -394,4 +395,13 @@ typedef char *va_list; #endif /* ACPI_USE_SYSTEM_CLIBRARY */ +#ifndef ACPI_FILE +#ifdef ACPI_APPLICATION +#include <stdio.h> +#define ACPI_FILE FILE * +#else +#define ACPI_FILE void * +#endif /* ACPI_APPLICATION */ +#endif /* ACPI_FILE */ + #endif /* __ACENV_H__ */ diff --git a/include/acpi/platform/aclinux.h b/include/acpi/platform/aclinux.h index 28f4f4dba0b6..008aa287c7a9 100644 --- a/include/acpi/platform/aclinux.h +++ b/include/acpi/platform/aclinux.h @@ -239,10 +239,6 @@ void acpi_os_unmap_memory(void __iomem * logical_address, acpi_size size); */ void early_acpi_os_unmap_memory(void __iomem * virt, acpi_size size); -void acpi_os_gpe_count(u32 gpe_number); - -void acpi_os_fixed_event_count(u32 fixed_event_number); - #endif /* __KERNEL__ */ #endif /* __ACLINUX_H__ */ diff --git a/include/linux/acpi.h b/include/linux/acpi.h index d9099b15b472..1151a1dcfe41 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -42,6 +42,7 @@ #include <acpi/acpi_bus.h> #include <acpi/acpi_drivers.h> #include <acpi/acpi_numa.h> +#include <acpi/acpi_io.h> #include <asm/acpi.h> static inline acpi_handle acpi_device_handle(struct acpi_device *adev) @@ -53,6 +54,12 @@ static inline acpi_handle acpi_device_handle(struct acpi_device *adev) #define ACPI_COMPANION_SET(dev, adev) ACPI_COMPANION(dev) = (adev) #define ACPI_HANDLE(dev) acpi_device_handle(ACPI_COMPANION(dev)) +static inline void acpi_preset_companion(struct device *dev, + struct acpi_device *parent, u64 addr) +{ + ACPI_COMPANION_SET(dev, acpi_find_child_device(parent, addr, NULL)); +} + static inline const char *acpi_dev_name(struct acpi_device *adev) { return dev_name(&adev->dev); @@ -409,6 +416,9 @@ static inline bool acpi_driver_match_device(struct device *dev, return !!acpi_match_device(drv->acpi_match_table, dev); } +int acpi_device_uevent_modalias(struct device *, struct kobj_uevent_env *); +int acpi_device_modalias(struct device *, char *, int); + #define ACPI_PTR(_ptr) (_ptr) #else /* !CONFIG_ACPI */ @@ -460,7 +470,7 @@ struct acpi_table_header; static inline int acpi_table_parse(char *id, int (*handler)(struct acpi_table_header *)) { - return -1; + return -ENODEV; } static inline int acpi_nvs_register(__u64 start, __u64 size) @@ -488,6 +498,18 @@ static inline bool acpi_driver_match_device(struct device *dev, return false; } +static inline int acpi_device_uevent_modalias(struct device *dev, + struct kobj_uevent_env *env) +{ + return -ENODEV; +} + +static inline int acpi_device_modalias(struct device *dev, + char *buf, int size) +{ + return -ENODEV; +} + #define ACPI_PTR(_ptr) (NULL) #endif /* !CONFIG_ACPI */ diff --git a/include/linux/container.h b/include/linux/container.h new file mode 100644 index 000000000000..3c03e6fd2035 --- /dev/null +++ b/include/linux/container.h @@ -0,0 +1,25 @@ +/* + * Definitions for container bus type. + * + * Copyright (C) 2013, Intel Corporation + * Author: Rafael J. Wysocki <rafael.j.wysocki@intel.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/device.h> + +/* drivers/base/power/container.c */ +extern struct bus_type container_subsys; + +struct container_dev { + struct device dev; + int (*offline)(struct container_dev *cdev); +}; + +static inline struct container_dev *to_container_dev(struct device *dev) +{ + return container_of(dev, struct container_dev, dev); +} diff --git a/include/linux/ide.h b/include/linux/ide.h index 46a14229a162..93b5ca754b5b 100644 --- a/include/linux/ide.h +++ b/include/linux/ide.h @@ -18,14 +18,10 @@ #include <linux/completion.h> #include <linux/pm.h> #include <linux/mutex.h> -#ifdef CONFIG_BLK_DEV_IDEACPI -#include <acpi/acpi.h> -#endif -#include <asm/byteorder.h> -#include <asm/io.h> - /* for request_sense */ #include <linux/cdrom.h> +#include <asm/byteorder.h> +#include <asm/io.h> #if defined(CONFIG_CRIS) || defined(CONFIG_FRV) || defined(CONFIG_MN10300) # define SUPPORT_VLB_SYNC 0 diff --git a/include/linux/iscsi_ibft.h b/include/linux/iscsi_ibft.h index 8ba7e5b9d62c..605cc5c333d9 100644 --- a/include/linux/iscsi_ibft.h +++ b/include/linux/iscsi_ibft.h @@ -21,7 +21,7 @@ #ifndef ISCSI_IBFT_H #define ISCSI_IBFT_H -#include <acpi/acpi.h> +#include <linux/acpi.h> /* * Logical location of iSCSI Boot Format Table. diff --git a/include/linux/of_device.h b/include/linux/of_device.h index 82ce324fdce7..8d7dd6768cb7 100644 --- a/include/linux/of_device.h +++ b/include/linux/of_device.h @@ -64,6 +64,12 @@ static inline int of_driver_match_device(struct device *dev, static inline void of_device_uevent(struct device *dev, struct kobj_uevent_env *env) { } +static inline int of_device_get_modalias(struct device *dev, + char *str, ssize_t len) +{ + return -ENODEV; +} + static inline int of_device_uevent_modalias(struct device *dev, struct kobj_uevent_env *env) { diff --git a/include/linux/pci_hotplug.h b/include/linux/pci_hotplug.h index a2e2f1d17e16..5f2e559af6b0 100644 --- a/include/linux/pci_hotplug.h +++ b/include/linux/pci_hotplug.h @@ -175,8 +175,7 @@ struct hotplug_params { }; #ifdef CONFIG_ACPI -#include <acpi/acpi.h> -#include <acpi/acpi_bus.h> +#include <linux/acpi.h> int pci_get_hp_params(struct pci_dev *dev, struct hotplug_params *hpp); int acpi_get_hp_hw_control_from_firmware(struct pci_dev *dev, u32 flags); int acpi_pci_check_ejectable(struct pci_bus *pbus, acpi_handle handle); diff --git a/include/linux/pm.h b/include/linux/pm.h index a224c7f5c377..8c6583a53a06 100644 --- a/include/linux/pm.h +++ b/include/linux/pm.h @@ -311,6 +311,18 @@ struct dev_pm_ops { #define SET_SYSTEM_SLEEP_PM_OPS(suspend_fn, resume_fn) #endif +#ifdef CONFIG_PM_SLEEP +#define SET_LATE_SYSTEM_SLEEP_PM_OPS(suspend_fn, resume_fn) \ + .suspend_late = suspend_fn, \ + .resume_early = resume_fn, \ + .freeze_late = suspend_fn, \ + .thaw_early = resume_fn, \ + .poweroff_late = suspend_fn, \ + .restore_early = resume_fn, +#else +#define SET_LATE_SYSTEM_SLEEP_PM_OPS(suspend_fn, resume_fn) +#endif + #ifdef CONFIG_PM_RUNTIME #define SET_RUNTIME_PM_OPS(suspend_fn, resume_fn, idle_fn) \ .runtime_suspend = suspend_fn, \ @@ -320,6 +332,15 @@ struct dev_pm_ops { #define SET_RUNTIME_PM_OPS(suspend_fn, resume_fn, idle_fn) #endif +#ifdef CONFIG_PM +#define SET_PM_RUNTIME_PM_OPS(suspend_fn, resume_fn, idle_fn) \ + .runtime_suspend = suspend_fn, \ + .runtime_resume = resume_fn, \ + .runtime_idle = idle_fn, +#else +#define SET_PM_RUNTIME_PM_OPS(suspend_fn, resume_fn, idle_fn) +#endif + /* * Use this if you want to use the same suspend and resume callbacks for suspend * to RAM and hibernation. diff --git a/include/linux/pm_runtime.h b/include/linux/pm_runtime.h index 6fa7cea25da9..16c9a62fa1c0 100644 --- a/include/linux/pm_runtime.h +++ b/include/linux/pm_runtime.h @@ -23,6 +23,14 @@ usage_count */ #define RPM_AUTO 0x08 /* Use autosuspend_delay */ +#ifdef CONFIG_PM +extern int pm_generic_runtime_suspend(struct device *dev); +extern int pm_generic_runtime_resume(struct device *dev); +#else +static inline int pm_generic_runtime_suspend(struct device *dev) { return 0; } +static inline int pm_generic_runtime_resume(struct device *dev) { return 0; } +#endif + #ifdef CONFIG_PM_RUNTIME extern struct workqueue_struct *pm_wq; @@ -37,8 +45,6 @@ extern void pm_runtime_enable(struct device *dev); extern void __pm_runtime_disable(struct device *dev, bool check_resume); extern void pm_runtime_allow(struct device *dev); extern void pm_runtime_forbid(struct device *dev); -extern int pm_generic_runtime_suspend(struct device *dev); -extern int pm_generic_runtime_resume(struct device *dev); extern void pm_runtime_no_callbacks(struct device *dev); extern void pm_runtime_irq_safe(struct device *dev); extern void __pm_runtime_use_autosuspend(struct device *dev, bool use); @@ -142,8 +148,6 @@ static inline bool pm_runtime_active(struct device *dev) { return true; } static inline bool pm_runtime_status_suspended(struct device *dev) { return false; } static inline bool pm_runtime_enabled(struct device *dev) { return false; } -static inline int pm_generic_runtime_suspend(struct device *dev) { return 0; } -static inline int pm_generic_runtime_resume(struct device *dev) { return 0; } static inline void pm_runtime_no_callbacks(struct device *dev) {} static inline void pm_runtime_irq_safe(struct device *dev) {} diff --git a/include/linux/sfi_acpi.h b/include/linux/sfi_acpi.h index 631af63af42d..4723bbfa1c26 100644 --- a/include/linux/sfi_acpi.h +++ b/include/linux/sfi_acpi.h @@ -59,8 +59,11 @@ #ifndef _LINUX_SFI_ACPI_H #define _LINUX_SFI_ACPI_H +#include <linux/acpi.h> +#include <linux/sfi.h> + #ifdef CONFIG_SFI -#include <acpi/acpi.h> /* struct acpi_table_header */ +#include <acpi/acpi.h> /* FIXME: inclusion should be removed */ extern int sfi_acpi_table_parse(char *signature, char *oem_id, char *oem_table_id, diff --git a/include/linux/tboot.h b/include/linux/tboot.h index c75128bed5fa..9a54b331f938 100644 --- a/include/linux/tboot.h +++ b/include/linux/tboot.h @@ -34,7 +34,7 @@ enum { }; #ifdef CONFIG_INTEL_TXT -#include <acpi/acpi.h> +#include <linux/acpi.h> /* used to communicate between tboot and the launched kernel */ #define TB_KEY_SIZE 64 /* 512 bits */ diff --git a/include/uapi/linux/apm_bios.h b/include/uapi/linux/apm_bios.h index 724f409adae0..df79bca1b898 100644 --- a/include/uapi/linux/apm_bios.h +++ b/include/uapi/linux/apm_bios.h @@ -67,6 +67,8 @@ struct apm_bios_info { #define APM_USER_SUSPEND 0x000a #define APM_STANDBY_RESUME 0x000b #define APM_CAPABILITY_CHANGE 0x000c +#define APM_USER_HIBERNATION 0x000d +#define APM_HIBERNATION_RESUME 0x000e /* * Error codes diff --git a/init/main.c b/init/main.c index febc511e078a..b6d93c840154 100644 --- a/init/main.c +++ b/init/main.c @@ -565,6 +565,7 @@ asmlinkage void __init start_kernel(void) init_timers(); hrtimers_init(); softirq_init(); + acpi_early_init(); timekeeping_init(); time_init(); sched_clock_postinit(); @@ -641,7 +642,6 @@ asmlinkage void __init start_kernel(void) check_bugs(); - acpi_early_init(); /* before LAPIC and SMP init */ sfi_init_late(); if (efi_enabled(EFI_RUNTIME_SERVICES)) { diff --git a/kernel/power/hibernate.c b/kernel/power/hibernate.c index 0121dab83f43..37170d4dd9a6 100644 --- a/kernel/power/hibernate.c +++ b/kernel/power/hibernate.c @@ -82,6 +82,7 @@ void hibernation_set_ops(const struct platform_hibernation_ops *ops) unlock_system_sleep(); } +EXPORT_SYMBOL_GPL(hibernation_set_ops); static bool entering_platform_hibernation; @@ -293,10 +294,10 @@ static int create_image(int platform_mode) error); /* Restore control flow magically appears here */ restore_processor_state(); - if (!in_suspend) { + if (!in_suspend) events_check_enabled = false; - platform_leave(platform_mode); - } + + platform_leave(platform_mode); Power_up: syscore_resume(); diff --git a/scripts/analyze_suspend.py b/scripts/analyze_suspend.py new file mode 100755 index 000000000000..4f2cc12dc7c7 --- /dev/null +++ b/scripts/analyze_suspend.py @@ -0,0 +1,1446 @@ +#!/usr/bin/python +# +# Tool for analyzing suspend/resume timing +# Copyright (c) 2013, Intel Corporation. +# +# This program is free software; you can redistribute it and/or modify it +# under the terms and conditions of the GNU General Public License, +# version 2, as published by the Free Software Foundation. +# +# This program is distributed in the hope it will be useful, but WITHOUT +# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or +# FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for +# more details. +# +# You should have received a copy of the GNU General Public License along with +# this program; if not, write to the Free Software Foundation, Inc., +# 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. +# +# Authors: +# Todd Brandt <todd.e.brandt@linux.intel.com> +# +# Description: +# This tool is designed to assist kernel and OS developers in optimizing +# their linux stack's suspend/resume time. Using a kernel image built +# with a few extra options enabled, the tool will execute a suspend and +# will capture dmesg and ftrace data until resume is complete. This data +# is transformed into a device timeline and a callgraph to give a quick +# and detailed view of which devices and callbacks are taking the most +# time in suspend/resume. The output is a single html file which can be +# viewed in firefox or chrome. +# +# The following kernel build options are required: +# CONFIG_PM_DEBUG=y +# CONFIG_PM_SLEEP_DEBUG=y +# CONFIG_FTRACE=y +# CONFIG_FUNCTION_TRACER=y +# CONFIG_FUNCTION_GRAPH_TRACER=y +# +# The following additional kernel parameters are required: +# (e.g. in file /etc/default/grub) +# GRUB_CMDLINE_LINUX_DEFAULT="... initcall_debug log_buf_len=16M ..." +# + +import sys +import time +import os +import string +import re +import array +import platform +import datetime +import struct + +# -- classes -- + +class SystemValues: + testdir = "." + tpath = "/sys/kernel/debug/tracing/" + mempath = "/dev/mem" + powerfile = "/sys/power/state" + suspendmode = "mem" + prefix = "test" + teststamp = "" + dmesgfile = "" + ftracefile = "" + htmlfile = "" + rtcwake = False + def setOutputFile(self): + if((self.htmlfile == "") and (self.dmesgfile != "")): + m = re.match(r"(?P<name>.*)_dmesg\.txt$", self.dmesgfile) + if(m): + self.htmlfile = m.group("name")+".html" + if((self.htmlfile == "") and (self.ftracefile != "")): + m = re.match(r"(?P<name>.*)_ftrace\.txt$", self.ftracefile) + if(m): + self.htmlfile = m.group("name")+".html" + if(self.htmlfile == ""): + self.htmlfile = "output.html" + def initTestOutput(self): + hostname = platform.node() + if(hostname != ""): + self.prefix = hostname + v = os.popen("cat /proc/version").read().strip() + kver = string.split(v)[2] + self.testdir = os.popen("date \"+suspend-%m%d%y-%H%M%S\"").read().strip() + self.teststamp = "# "+self.testdir+" "+self.prefix+" "+self.suspendmode+" "+kver + self.dmesgfile = self.testdir+"/"+self.prefix+"_"+self.suspendmode+"_dmesg.txt" + self.ftracefile = self.testdir+"/"+self.prefix+"_"+self.suspendmode+"_ftrace.txt" + self.htmlfile = self.testdir+"/"+self.prefix+"_"+self.suspendmode+".html" + os.mkdir(self.testdir) + +class Data: + altdevname = dict() + usedmesg = False + useftrace = False + notestrun = False + verbose = False + phases = [] + dmesg = {} # root data structure + start = 0.0 + end = 0.0 + stamp = {'time': "", 'host': "", 'mode': ""} + id = 0 + tSuspended = 0.0 + fwValid = False + fwSuspend = 0 + fwResume = 0 + def initialize(self): + self.dmesg = { # dmesg log data + 'suspend_general': {'list': dict(), 'start': -1.0, 'end': -1.0, + 'row': 0, 'color': "#CCFFCC", 'order': 0}, + 'suspend_early': {'list': dict(), 'start': -1.0, 'end': -1.0, + 'row': 0, 'color': "green", 'order': 1}, + 'suspend_noirq': {'list': dict(), 'start': -1.0, 'end': -1.0, + 'row': 0, 'color': "#00FFFF", 'order': 2}, + 'suspend_cpu': {'list': dict(), 'start': -1.0, 'end': -1.0, + 'row': 0, 'color': "blue", 'order': 3}, + 'resume_cpu': {'list': dict(), 'start': -1.0, 'end': -1.0, + 'row': 0, 'color': "red", 'order': 4}, + 'resume_noirq': {'list': dict(), 'start': -1.0, 'end': -1.0, + 'row': 0, 'color': "orange", 'order': 5}, + 'resume_early': {'list': dict(), 'start': -1.0, 'end': -1.0, + 'row': 0, 'color': "yellow", 'order': 6}, + 'resume_general': {'list': dict(), 'start': -1.0, 'end': -1.0, + 'row': 0, 'color': "#FFFFCC", 'order': 7} + } + self.phases = self.sortedPhases() + def normalizeTime(self): + tSus = tRes = self.tSuspended + if self.fwValid: + tSus -= -self.fwSuspend / 1000000000.0 + tRes -= self.fwResume / 1000000000.0 + self.tSuspended = 0.0 + self.start -= tSus + self.end -= tRes + for phase in self.phases: + zero = tRes + if "suspend" in phase: + zero = tSus + p = self.dmesg[phase] + p['start'] -= zero + p['end'] -= zero + list = p['list'] + for name in list: + d = list[name] + d['start'] -= zero + d['end'] -= zero + if('ftrace' in d): + cg = d['ftrace'] + cg.start -= zero + cg.end -= zero + for line in cg.list: + line.time -= zero + if self.fwValid: + fws = -self.fwSuspend / 1000000000.0 + fwr = self.fwResume / 1000000000.0 + list = dict() + self.id += 1 + devid = "dc%d" % self.id + list["firmware-suspend"] = \ + {'start': fws, 'end': 0, 'pid': 0, 'par': "", + 'length': -fws, 'row': 0, 'id': devid }; + self.id += 1 + devid = "dc%d" % self.id + list["firmware-resume"] = \ + {'start': 0, 'end': fwr, 'pid': 0, 'par': "", + 'length': fwr, 'row': 0, 'id': devid }; + self.dmesg['BIOS'] = \ + {'list': list, 'start': fws, 'end': fwr, + 'row': 0, 'color': "purple", 'order': 4} + self.dmesg['resume_cpu']['order'] += 1 + self.dmesg['resume_noirq']['order'] += 1 + self.dmesg['resume_early']['order'] += 1 + self.dmesg['resume_general']['order'] += 1 + self.phases = self.sortedPhases() + def vprint(self, msg): + if(self.verbose): + print(msg) + def dmesgSortVal(self, phase): + return self.dmesg[phase]['order'] + def sortedPhases(self): + return sorted(self.dmesg, key=self.dmesgSortVal) + def sortedDevices(self, phase): + list = self.dmesg[phase]['list'] + slist = [] + tmp = dict() + for devname in list: + dev = list[devname] + tmp[dev['start']] = devname + for t in sorted(tmp): + slist.append(tmp[t]) + return slist + def fixupInitcalls(self, phase, end): + # if any calls never returned, clip them at system resume end + phaselist = self.dmesg[phase]['list'] + for devname in phaselist: + dev = phaselist[devname] + if(dev['end'] < 0): + dev['end'] = end + self.vprint("%s (%s): callback didn't return" % (devname, phase)) + def fixupInitcallsThatDidntReturn(self): + # if any calls never returned, clip them at system resume end + for phase in self.phases: + self.fixupInitcalls(phase, self.dmesg['resume_general']['end']) + if(phase == "resume_general"): + break + def newAction(self, phase, name, pid, parent, start, end): + self.id += 1 + devid = "dc%d" % self.id + list = self.dmesg[phase]['list'] + length = -1.0 + if(start >= 0 and end >= 0): + length = end - start + list[name] = {'start': start, 'end': end, 'pid': pid, 'par': parent, + 'length': length, 'row': 0, 'id': devid } + def deviceIDs(self, devlist, phase): + idlist = [] + for p in self.phases: + if(p[0] != phase[0]): + continue + list = data.dmesg[p]['list'] + for devname in list: + if devname in devlist: + idlist.append(list[devname]['id']) + return idlist + def deviceParentID(self, devname, phase): + pdev = "" + pdevid = "" + for p in self.phases: + if(p[0] != phase[0]): + continue + list = data.dmesg[p]['list'] + if devname in list: + pdev = list[devname]['par'] + for p in self.phases: + if(p[0] != phase[0]): + continue + list = data.dmesg[p]['list'] + if pdev in list: + return list[pdev]['id'] + return pdev + def deviceChildrenIDs(self, devname, phase): + devlist = [] + for p in self.phases: + if(p[0] != phase[0]): + continue + list = data.dmesg[p]['list'] + for child in list: + if(list[child]['par'] == devname): + devlist.append(child) + return self.deviceIDs(devlist, phase) + +class FTraceLine: + time = 0.0 + length = 0.0 + fcall = False + freturn = False + fevent = False + depth = 0 + name = "" + def __init__(self, t, m, d): + self.time = float(t) + # check to see if this is a trace event + em = re.match(r"^ *\/\* *(?P<msg>.*) \*\/ *$", m) + if(em): + self.name = em.group("msg") + self.fevent = True + return + # convert the duration to seconds + if(d): + self.length = float(d)/1000000 + # the indentation determines the depth + match = re.match(r"^(?P<d> *)(?P<o>.*)$", m) + if(not match): + return + self.depth = self.getDepth(match.group('d')) + m = match.group('o') + # function return + if(m[0] == '}'): + self.freturn = True + if(len(m) > 1): + # includes comment with function name + match = re.match(r"^} *\/\* *(?P<n>.*) *\*\/$", m) + if(match): + self.name = match.group('n') + # function call + else: + self.fcall = True + # function call with children + if(m[-1] == '{'): + match = re.match(r"^(?P<n>.*) *\(.*", m) + if(match): + self.name = match.group('n') + # function call with no children (leaf) + elif(m[-1] == ';'): + self.freturn = True + match = re.match(r"^(?P<n>.*) *\(.*", m) + if(match): + self.name = match.group('n') + # something else (possibly a trace marker) + else: + self.name = m + def getDepth(self, str): + return len(str)/2 + +class FTraceCallGraph: + start = -1.0 + end = -1.0 + list = [] + invalid = False + depth = 0 + def __init__(self): + self.start = -1.0 + self.end = -1.0 + self.list = [] + self.depth = 0 + def setDepth(self, line): + if(line.fcall and not line.freturn): + line.depth = self.depth + self.depth += 1 + elif(line.freturn and not line.fcall): + self.depth -= 1 + line.depth = self.depth + else: + line.depth = self.depth + def addLine(self, line, match): + if(not self.invalid): + self.setDepth(line) + if(line.depth == 0 and line.freturn): + self.end = line.time + self.list.append(line) + return True + if(self.invalid): + return False + if(len(self.list) >= 1000000 or self.depth < 0): + first = self.list[0] + self.list = [] + self.list.append(first) + self.invalid = True + id = "task %s cpu %s" % (match.group("pid"), match.group("cpu")) + window = "(%f - %f)" % (self.start, line.time) + data.vprint("Too much data for "+id+" "+window+", ignoring this callback") + return False + self.list.append(line) + if(self.start < 0): + self.start = line.time + return False + def sanityCheck(self): + stack = dict() + cnt = 0 + for l in self.list: + if(l.fcall and not l.freturn): + stack[l.depth] = l + cnt += 1 + elif(l.freturn and not l.fcall): + if(not stack[l.depth]): + return False + stack[l.depth].length = l.length + stack[l.depth] = 0 + l.length = 0 + cnt -= 1 + if(cnt == 0): + return True + return False + def debugPrint(self, filename): + if(filename == "stdout"): + print("[%f - %f]") % (self.start, self.end) + for l in self.list: + if(l.freturn and l.fcall): + print("%f (%02d): %s(); (%.3f us)" % (l.time, l.depth, l.name, l.length*1000000)) + elif(l.freturn): + print("%f (%02d): %s} (%.3f us)" % (l.time, l.depth, l.name, l.length*1000000)) + else: + print("%f (%02d): %s() { (%.3f us)" % (l.time, l.depth, l.name, l.length*1000000)) + print(" ") + else: + fp = open(filename, 'w') + print(filename) + for l in self.list: + if(l.freturn and l.fcall): + fp.write("%f (%02d): %s(); (%.3f us)\n" % (l.time, l.depth, l.name, l.length*1000000)) + elif(l.freturn): + fp.write("%f (%02d): %s} (%.3f us)\n" % (l.time, l.depth, l.name, l.length*1000000)) + else: + fp.write("%f (%02d): %s() { (%.3f us)\n" % (l.time, l.depth, l.name, l.length*1000000)) + fp.close() + +class Timeline: + html = {} + scaleH = 0.0 # height of the timescale row as a percent of the timeline height + rowH = 0.0 # height of each row in percent of the timeline height + row_height_pixels = 30 + maxrows = 0 + height = 0 + def __init__(self): + self.html = { + 'timeline': "", + 'legend': "", + 'scale': "" + } + def setRows(self, rows): + self.maxrows = int(rows) + self.scaleH = 100.0/float(self.maxrows) + self.height = self.maxrows*self.row_height_pixels + r = float(self.maxrows - 1) + if(r < 1.0): + r = 1.0 + self.rowH = (100.0 - self.scaleH)/r + +# -- global objects -- + +sysvals = SystemValues() +data = Data() + +# -- functions -- + +# Function: initFtrace +# Description: +# Configure ftrace to capture a function trace during suspend/resume +def initFtrace(): + global sysvals + + print("INITIALIZING FTRACE...") + # turn trace off + os.system("echo 0 > "+sysvals.tpath+"tracing_on") + # set the trace clock to global + os.system("echo global > "+sysvals.tpath+"trace_clock") + # set trace buffer to a huge value + os.system("echo nop > "+sysvals.tpath+"current_tracer") + os.system("echo 100000 > "+sysvals.tpath+"buffer_size_kb") + # clear the trace buffer + os.system("echo \"\" > "+sysvals.tpath+"trace") + # set trace type + os.system("echo function_graph > "+sysvals.tpath+"current_tracer") + os.system("echo \"\" > "+sysvals.tpath+"set_ftrace_filter") + # set trace format options + os.system("echo funcgraph-abstime > "+sysvals.tpath+"trace_options") + os.system("echo funcgraph-proc > "+sysvals.tpath+"trace_options") + # focus only on device suspend and resume + os.system("cat "+sysvals.tpath+"available_filter_functions | grep dpm_run_callback > "+sysvals.tpath+"set_graph_function") + +# Function: verifyFtrace +# Description: +# Check that ftrace is working on the system +def verifyFtrace(): + global sysvals + files = ["available_filter_functions", "buffer_size_kb", + "current_tracer", "set_ftrace_filter", + "trace", "trace_marker"] + for f in files: + if(os.path.exists(sysvals.tpath+f) == False): + return False + return True + +def parseStamp(line): + global data, sysvals + stampfmt = r"# suspend-(?P<m>[0-9]{2})(?P<d>[0-9]{2})(?P<y>[0-9]{2})-"+\ + "(?P<H>[0-9]{2})(?P<M>[0-9]{2})(?P<S>[0-9]{2})"+\ + " (?P<host>.*) (?P<mode>.*) (?P<kernel>.*)$" + m = re.match(stampfmt, line) + if(m): + dt = datetime.datetime(int(m.group("y"))+2000, int(m.group("m")), + int(m.group("d")), int(m.group("H")), int(m.group("M")), + int(m.group("S"))) + data.stamp['time'] = dt.strftime("%B %d %Y, %I:%M:%S %p") + data.stamp['host'] = m.group("host") + data.stamp['mode'] = m.group("mode") + data.stamp['kernel'] = m.group("kernel") + sysvals.suspendmode = data.stamp['mode'] + +# Function: analyzeTraceLog +# Description: +# Analyse an ftrace log output file generated from this app during +# the execution phase. Create an "ftrace" structure in memory for +# subsequent formatting in the html output file +def analyzeTraceLog(): + global sysvals, data + + # the ftrace data is tied to the dmesg data + if(not data.usedmesg): + return + + # read through the ftrace and parse the data + data.vprint("Analyzing the ftrace data...") + ftrace_line_fmt = r"^ *(?P<time>[0-9\.]*) *\| *(?P<cpu>[0-9]*)\)"+\ + " *(?P<proc>.*)-(?P<pid>[0-9]*) *\|"+\ + "[ +!]*(?P<dur>[0-9\.]*) .*\| (?P<msg>.*)" + ftemp = dict() + inthepipe = False + tf = open(sysvals.ftracefile, 'r') + count = 0 + for line in tf: + count = count + 1 + # grab the time stamp if it's valid + if(count == 1): + parseStamp(line) + continue + # parse only valid lines + m = re.match(ftrace_line_fmt, line) + if(not m): + continue + m_time = m.group("time") + m_pid = m.group("pid") + m_msg = m.group("msg") + m_dur = m.group("dur") + if(m_time and m_pid and m_msg): + t = FTraceLine(m_time, m_msg, m_dur) + pid = int(m_pid) + else: + continue + # the line should be a call, return, or event + if(not t.fcall and not t.freturn and not t.fevent): + continue + # only parse the ftrace data during suspend/resume + if(not inthepipe): + # look for the suspend start marker + if(t.fevent): + if(t.name == "SUSPEND START"): + data.vprint("SUSPEND START %f %s:%d" % (t.time, sysvals.ftracefile, count)) + inthepipe = True + continue + else: + # look for the resume end marker + if(t.fevent): + if(t.name == "RESUME COMPLETE"): + data.vprint("RESUME COMPLETE %f %s:%d" % (t.time, sysvals.ftracefile, count)) + inthepipe = False + break + continue + # create a callgraph object for the data + if(pid not in ftemp): + ftemp[pid] = FTraceCallGraph() + # when the call is finished, see which device matches it + if(ftemp[pid].addLine(t, m)): + if(not ftemp[pid].sanityCheck()): + id = "task %s cpu %s" % (pid, m.group("cpu")) + data.vprint("Sanity check failed for "+id+", ignoring this callback") + continue + callstart = ftemp[pid].start + callend = ftemp[pid].end + for p in data.phases: + if(data.dmesg[p]['start'] <= callstart and callstart <= data.dmesg[p]['end']): + list = data.dmesg[p]['list'] + for devname in list: + dev = list[devname] + if(pid == dev['pid'] and callstart <= dev['start'] and callend >= dev['end']): + data.vprint("%15s [%f - %f] %s(%d)" % (p, callstart, callend, devname, pid)) + dev['ftrace'] = ftemp[pid] + break + ftemp[pid] = FTraceCallGraph() + tf.close() + +# Function: sortKernelLog +# Description: +# The dmesg output log sometimes comes with with lines that have +# timestamps out of order. This could cause issues since a call +# could accidentally end up in the wrong phase +def sortKernelLog(): + global sysvals, data + lf = open(sysvals.dmesgfile, 'r') + dmesglist = [] + count = 0 + for line in lf: + line = line.replace("\r\n", "") + if(count == 0): + parseStamp(line) + elif(count == 1): + m = re.match(r"# fwsuspend (?P<s>[0-9]*) fwresume (?P<r>[0-9]*)$", line) + if(m): + data.fwSuspend = int(m.group("s")) + data.fwResume = int(m.group("r")) + if(data.fwSuspend > 0 or data.fwResume > 0): + data.fwValid = True + if(re.match(r".*(\[ *)(?P<ktime>[0-9\.]*)(\]) (?P<msg>.*)", line)): + dmesglist.append(line) + count += 1 + lf.close() + last = "" + + # fix lines with the same time stamp and function with the call and return swapped + for line in dmesglist: + mc = re.match(r".*(\[ *)(?P<t>[0-9\.]*)(\]) calling (?P<f>.*)\+ @ .*, parent: .*", line) + mr = re.match(r".*(\[ *)(?P<t>[0-9\.]*)(\]) call (?P<f>.*)\+ returned .* after (?P<dt>.*) usecs", last) + if(mc and mr and (mc.group("t") == mr.group("t")) and (mc.group("f") == mr.group("f"))): + i = dmesglist.index(last) + j = dmesglist.index(line) + dmesglist[i] = line + dmesglist[j] = last + last = line + return dmesglist + +# Function: analyzeKernelLog +# Description: +# Analyse a dmesg log output file generated from this app during +# the execution phase. Create a set of device structures in memory +# for subsequent formatting in the html output file +def analyzeKernelLog(): + global sysvals, data + + print("PROCESSING DATA") + data.vprint("Analyzing the dmesg data...") + if(os.path.exists(sysvals.dmesgfile) == False): + print("ERROR: %s doesn't exist") % sysvals.dmesgfile + return False + + lf = sortKernelLog() + phase = "suspend_runtime" + + dm = { + 'suspend_general': r"PM: Syncing filesystems.*", + 'suspend_early': r"PM: suspend of devices complete after.*", + 'suspend_noirq': r"PM: late suspend of devices complete after.*", + 'suspend_cpu': r"PM: noirq suspend of devices complete after.*", + 'resume_cpu': r"ACPI: Low-level resume complete.*", + 'resume_noirq': r"ACPI: Waking up from system sleep state.*", + 'resume_early': r"PM: noirq resume of devices complete after.*", + 'resume_general': r"PM: early resume of devices complete after.*", + 'resume_complete': r".*Restarting tasks \.\.\..*", + } + if(sysvals.suspendmode == "standby"): + dm['resume_cpu'] = r"PM: Restoring platform NVS memory" + elif(sysvals.suspendmode == "disk"): + dm['suspend_early'] = r"PM: freeze of devices complete after.*" + dm['suspend_noirq'] = r"PM: late freeze of devices complete after.*" + dm['suspend_cpu'] = r"PM: noirq freeze of devices complete after.*" + dm['resume_cpu'] = r"PM: Restoring platform NVS memory" + dm['resume_early'] = r"PM: noirq restore of devices complete after.*" + dm['resume_general'] = r"PM: early restore of devices complete after.*" + + action_start = 0.0 + for line in lf: + # -- preprocessing -- + # parse each dmesg line into the time and message + m = re.match(r".*(\[ *)(?P<ktime>[0-9\.]*)(\]) (?P<msg>.*)", line) + if(m): + ktime = float(m.group("ktime")) + msg = m.group("msg") + else: + print line + continue + + # -- phase changes -- + # suspend_general start + if(re.match(dm['suspend_general'], msg)): + phase = "suspend_general" + data.dmesg[phase]['start'] = ktime + data.start = ktime + # action start: syncing filesystems + action_start = ktime + # suspend_early start + elif(re.match(dm['suspend_early'], msg)): + data.dmesg["suspend_general"]['end'] = ktime + phase = "suspend_early" + data.dmesg[phase]['start'] = ktime + # suspend_noirq start + elif(re.match(dm['suspend_noirq'], msg)): + data.dmesg["suspend_early"]['end'] = ktime + phase = "suspend_noirq" + data.dmesg[phase]['start'] = ktime + # suspend_cpu start + elif(re.match(dm['suspend_cpu'], msg)): + data.dmesg["suspend_noirq"]['end'] = ktime + phase = "suspend_cpu" + data.dmesg[phase]['start'] = ktime + # resume_cpu start + elif(re.match(dm['resume_cpu'], msg)): + data.tSuspended = ktime + data.dmesg["suspend_cpu"]['end'] = ktime + phase = "resume_cpu" + data.dmesg[phase]['start'] = ktime + # resume_noirq start + elif(re.match(dm['resume_noirq'], msg)): + data.dmesg["resume_cpu"]['end'] = ktime + phase = "resume_noirq" + data.dmesg[phase]['start'] = ktime + # action end: ACPI resume + data.newAction("resume_cpu", "ACPI", -1, "", action_start, ktime) + # resume_early start + elif(re.match(dm['resume_early'], msg)): + data.dmesg["resume_noirq"]['end'] = ktime + phase = "resume_early" + data.dmesg[phase]['start'] = ktime + # resume_general start + elif(re.match(dm['resume_general'], msg)): + data.dmesg["resume_early"]['end'] = ktime + phase = "resume_general" + data.dmesg[phase]['start'] = ktime + # resume complete start + elif(re.match(dm['resume_complete'], msg)): + data.dmesg["resume_general"]['end'] = ktime + data.end = ktime + phase = "resume_runtime" + break + + # -- device callbacks -- + if(phase in data.phases): + # device init call + if(re.match(r"calling (?P<f>.*)\+ @ .*, parent: .*", msg)): + sm = re.match(r"calling (?P<f>.*)\+ @ (?P<n>.*), parent: (?P<p>.*)", msg); + f = sm.group("f") + n = sm.group("n") + p = sm.group("p") + if(f and n and p): + data.newAction(phase, f, int(n), p, ktime, -1) + # device init return + elif(re.match(r"call (?P<f>.*)\+ returned .* after (?P<t>.*) usecs", msg)): + sm = re.match(r"call (?P<f>.*)\+ returned .* after (?P<t>.*) usecs(?P<a>.*)", msg); + f = sm.group("f") + t = sm.group("t") + list = data.dmesg[phase]['list'] + if(f in list): + dev = list[f] + dev['length'] = int(t) + dev['end'] = ktime + data.vprint("%15s [%f - %f] %s(%d) %s" % + (phase, dev['start'], dev['end'], f, dev['pid'], dev['par'])) + + # -- phase specific actions -- + if(phase == "suspend_general"): + if(re.match(r"PM: Preparing system for mem sleep.*", msg)): + data.newAction(phase, "filesystem-sync", -1, "", action_start, ktime) + elif(re.match(r"Freezing user space processes .*", msg)): + action_start = ktime + elif(re.match(r"Freezing remaining freezable tasks.*", msg)): + data.newAction(phase, "freeze-user-processes", -1, "", action_start, ktime) + action_start = ktime + elif(re.match(r"PM: Entering (?P<mode>[a-z,A-Z]*) sleep.*", msg)): + data.newAction(phase, "freeze-tasks", -1, "", action_start, ktime) + elif(phase == "suspend_cpu"): + m = re.match(r"smpboot: CPU (?P<cpu>[0-9]*) is now offline", msg) + if(m): + cpu = "CPU"+m.group("cpu") + data.newAction(phase, cpu, -1, "", action_start, ktime) + action_start = ktime + elif(re.match(r"ACPI: Preparing to enter system sleep state.*", msg)): + action_start = ktime + elif(re.match(r"Disabling non-boot CPUs .*", msg)): + data.newAction(phase, "ACPI", -1, "", action_start, ktime) + action_start = ktime + elif(phase == "resume_cpu"): + m = re.match(r"CPU(?P<cpu>[0-9]*) is up", msg) + if(m): + cpu = "CPU"+m.group("cpu") + data.newAction(phase, cpu, -1, "", action_start, ktime) + action_start = ktime + elif(re.match(r"Enabling non-boot CPUs .*", msg)): + action_start = ktime + + # fill in any missing phases + lp = "suspend_general" + for p in data.phases: + if(p == "suspend_general"): + continue + if(data.dmesg[p]['start'] < 0): + data.dmesg[p]['start'] = data.dmesg[lp]['end'] + if(p == "resume_cpu"): + data.tSuspended = data.dmesg[lp]['end'] + if(data.dmesg[p]['end'] < 0): + data.dmesg[p]['end'] = data.dmesg[p]['start'] + lp = p + + data.fixupInitcallsThatDidntReturn() + return True + +# Function: setTimelineRows +# Description: +# Organize the device or thread lists into the smallest +# number of rows possible, with no entry overlapping +# Arguments: +# list: the list to sort (dmesg or ftrace) +# sortedkeys: sorted key list to use +def setTimelineRows(list, sortedkeys): + global data + + # clear all rows and set them to undefined + remaining = len(list) + rowdata = dict() + row = 0 + for item in list: + list[item]['row'] = -1 + + # try to pack each row with as many ranges as possible + while(remaining > 0): + if(row not in rowdata): + rowdata[row] = [] + for item in sortedkeys: + if(list[item]['row'] < 0): + s = list[item]['start'] + e = list[item]['end'] + valid = True + for ritem in rowdata[row]: + rs = ritem['start'] + re = ritem['end'] + if(not (((s <= rs) and (e <= rs)) or ((s >= re) and (e >= re)))): + valid = False + break + if(valid): + rowdata[row].append(list[item]) + list[item]['row'] = row + remaining -= 1 + row += 1 + return row + +# Function: createTimeScale +# Description: +# Create timescale lines for the dmesg and ftrace timelines +# Arguments: +# t0: start time (suspend begin) +# tMax: end time (resume end) +# tSuspend: time when suspend occurs +def createTimeScale(t0, tMax, tSuspended): + global data + timescale = "<div class=\"t\" style=\"right:{0}%\">{1}</div>\n" + output = '<div id="timescale">\n' + + # set scale for timeline + tTotal = tMax - t0 + tS = 0.1 + if(tTotal <= 0): + return output + if(tTotal > 4): + tS = 1 + if(tSuspended < 0): + for i in range(int(tTotal/tS)+1): + pos = "%0.3f" % (100 - ((float(i)*tS*100)/tTotal)) + if(i > 0): + val = "%0.f" % (float(i)*tS*1000) + else: + val = "" + output += timescale.format(pos, val) + else: + tSuspend = tSuspended - t0 + divTotal = int(tTotal/tS) + 1 + divSuspend = int(tSuspend/tS) + s0 = (tSuspend - tS*divSuspend)*100/tTotal + for i in range(divTotal): + pos = "%0.3f" % (100 - ((float(i)*tS*100)/tTotal) - s0) + if((i == 0) and (s0 < 3)): + val = "" + elif(i == divSuspend): + val = "S/R" + else: + val = "%0.f" % (float(i-divSuspend)*tS*1000) + output += timescale.format(pos, val) + output += '</div>\n' + return output + +# Function: createHTML +# Description: +# Create the output html file. +def createHTML(): + global sysvals, data + + data.normalizeTime() + + # html function templates + headline_stamp = '<div class="stamp">{0} {1} {2} {3}</div>\n' + html_zoombox = '<center><button id="zoomin">ZOOM IN</button><button id="zoomout">ZOOM OUT</button><button id="zoomdef">ZOOM 1:1</button></center>\n<div id="dmesgzoombox" class="zoombox">\n' + html_timeline = '<div id="{0}" class="timeline" style="height:{1}px">\n' + html_device = '<div id="{0}" title="{1}" class="thread" style="left:{2}%;top:{3}%;height:{4}%;width:{5}%;">{6}</div>\n' + html_phase = '<div class="phase" style="left:{0}%;width:{1}%;top:{2}%;height:{3}%;background-color:{4}">{5}</div>\n' + html_legend = '<div class="square" style="left:{0}%;background-color:{1}"> {2}</div>\n' + html_timetotal = '<table class="time1">\n<tr>'\ + '<td class="gray">{2} Suspend Time: <b>{0} ms</b></td>'\ + '<td class="gray">{2} Resume Time: <b>{1} ms</b></td>'\ + '</tr>\n</table>\n' + html_timegroups = '<table class="time2">\n<tr>'\ + '<td class="green">Kernel Suspend: {0} ms</td>'\ + '<td class="purple">Firmware Suspend: {1} ms</td>'\ + '<td class="purple">Firmware Resume: {2} ms</td>'\ + '<td class="yellow">Kernel Resume: {3} ms</td>'\ + '</tr>\n</table>\n' + + # device timeline (dmesg) + if(data.usedmesg): + data.vprint("Creating Device Timeline...") + devtl = Timeline() + + # Generate the header for this timeline + t0 = data.start + tMax = data.end + tTotal = tMax - t0 + if(tTotal == 0): + print("ERROR: No timeline data") + sys.exit() + suspend_time = "%.0f"%(-data.start*1000) + resume_time = "%.0f"%(data.end*1000) + if data.fwValid: + devtl.html['timeline'] = html_timetotal.format(suspend_time, resume_time, "Total") + sktime = "%.3f"%((data.dmesg['suspend_cpu']['end'] - data.dmesg['suspend_general']['start'])*1000) + sftime = "%.3f"%(data.fwSuspend / 1000000.0) + rftime = "%.3f"%(data.fwResume / 1000000.0) + rktime = "%.3f"%((data.dmesg['resume_general']['end'] - data.dmesg['resume_cpu']['start'])*1000) + devtl.html['timeline'] += html_timegroups.format(sktime, sftime, rftime, rktime) + else: + devtl.html['timeline'] = html_timetotal.format(suspend_time, resume_time, "Kernel") + + # determine the maximum number of rows we need to draw + timelinerows = 0 + for phase in data.dmesg: + list = data.dmesg[phase]['list'] + rows = setTimelineRows(list, list) + data.dmesg[phase]['row'] = rows + if(rows > timelinerows): + timelinerows = rows + + # calculate the timeline height and create its bounding box + devtl.setRows(timelinerows + 1) + devtl.html['timeline'] += html_zoombox; + devtl.html['timeline'] += html_timeline.format("dmesg", devtl.height); + + # draw the colored boxes for each of the phases + for b in data.dmesg: + phase = data.dmesg[b] + left = "%.3f" % (((phase['start']-data.start)*100)/tTotal) + width = "%.3f" % (((phase['end']-phase['start'])*100)/tTotal) + devtl.html['timeline'] += html_phase.format(left, width, "%.3f"%devtl.scaleH, "%.3f"%(100-devtl.scaleH), data.dmesg[b]['color'], "") + + # draw the time scale, try to make the number of labels readable + devtl.html['scale'] = createTimeScale(t0, tMax, data.tSuspended) + devtl.html['timeline'] += devtl.html['scale'] + for b in data.dmesg: + phaselist = data.dmesg[b]['list'] + for d in phaselist: + name = d + if(d in data.altdevname): + name = data.altdevname[d] + dev = phaselist[d] + height = (100.0 - devtl.scaleH)/data.dmesg[b]['row'] + top = "%.3f" % ((dev['row']*height) + devtl.scaleH) + left = "%.3f" % (((dev['start']-data.start)*100)/tTotal) + width = "%.3f" % (((dev['end']-dev['start'])*100)/tTotal) + len = " (%0.3f ms) " % ((dev['end']-dev['start'])*1000) + color = "rgba(204,204,204,0.5)" + devtl.html['timeline'] += html_device.format(dev['id'], name+len+b, left, top, "%.3f"%height, width, name) + + # timeline is finished + devtl.html['timeline'] += "</div>\n</div>\n" + + # draw a legend which describes the phases by color + devtl.html['legend'] = "<div class=\"legend\">\n" + pdelta = 100.0/data.phases.__len__() + pmargin = pdelta / 4.0 + for phase in data.phases: + order = "%.2f" % ((data.dmesg[phase]['order'] * pdelta) + pmargin) + name = string.replace(phase, "_", " ") + devtl.html['legend'] += html_legend.format(order, data.dmesg[phase]['color'], name) + devtl.html['legend'] += "</div>\n" + + hf = open(sysvals.htmlfile, 'w') + thread_height = 0 + + # write the html header first (html head, css code, everything up to the start of body) + html_header = "<!DOCTYPE html>\n<html>\n<head>\n\ + <meta http-equiv=\"content-type\" content=\"text/html; charset=UTF-8\">\n\ + <title>AnalyzeSuspend</title>\n\ + <style type='text/css'>\n\ + body {overflow-y: scroll;}\n\ + .stamp {width: 100%;text-align:center;background-color:gray;line-height:30px;color:white;font: 25px Arial;}\n\ + .callgraph {margin-top: 30px;box-shadow: 5px 5px 20px black;}\n\ + .callgraph article * {padding-left: 28px;}\n\ + h1 {color:black;font: bold 30px Times;}\n\ + table {width:100%;}\n\ + .gray {background-color:rgba(80,80,80,0.1);}\n\ + .green {background-color:rgba(204,255,204,0.4);}\n\ + .purple {background-color:rgba(128,0,128,0.2);}\n\ + .yellow {background-color:rgba(255,255,204,0.4);}\n\ + .time1 {font: 22px Arial;border:1px solid;}\n\ + .time2 {font: 15px Arial;border-bottom:1px solid;border-left:1px solid;border-right:1px solid;}\n\ + td {text-align: center;}\n\ + .tdhl {color: red;}\n\ + .hide {display: none;}\n\ + .pf {display: none;}\n\ + .pf:checked + label {background: url(\'data:image/svg+xml;utf,<?xml version=\"1.0\" standalone=\"no\"?><svg xmlns=\"http://www.w3.org/2000/svg\" height=\"18\" width=\"18\" version=\"1.1\"><circle cx=\"9\" cy=\"9\" r=\"8\" stroke=\"black\" stroke-width=\"1\" fill=\"white\"/><rect x=\"4\" y=\"8\" width=\"10\" height=\"2\" style=\"fill:black;stroke-width:0\"/><rect x=\"8\" y=\"4\" width=\"2\" height=\"10\" style=\"fill:black;stroke-width:0\"/></svg>\') no-repeat left center;}\n\ + .pf:not(:checked) ~ label {background: url(\'data:image/svg+xml;utf,<?xml version=\"1.0\" standalone=\"no\"?><svg xmlns=\"http://www.w3.org/2000/svg\" height=\"18\" width=\"18\" version=\"1.1\"><circle cx=\"9\" cy=\"9\" r=\"8\" stroke=\"black\" stroke-width=\"1\" fill=\"white\"/><rect x=\"4\" y=\"8\" width=\"10\" height=\"2\" style=\"fill:black;stroke-width:0\"/></svg>\') no-repeat left center;}\n\ + .pf:checked ~ *:not(:nth-child(2)) {display: none;}\n\ + .zoombox {position: relative; width: 100%; overflow-x: scroll;}\n\ + .timeline {position: relative; font-size: 14px;cursor: pointer;width: 100%; overflow: hidden; background-color:#dddddd;}\n\ + .thread {position: absolute; height: "+"%.3f"%thread_height+"%; overflow: hidden; line-height: 30px; border:1px solid;text-align:center;white-space:nowrap;background-color:rgba(204,204,204,0.5);}\n\ + .thread:hover {background-color:white;border:1px solid red;z-index:10;}\n\ + .phase {position: absolute;overflow: hidden;border:0px;text-align:center;}\n\ + .t {position: absolute; top: 0%; height: 100%; border-right:1px solid black;}\n\ + .legend {position: relative; width: 100%; height: 40px; text-align: center;margin-bottom:20px}\n\ + .legend .square {position:absolute;top:10px; width: 0px;height: 20px;border:1px solid;padding-left:20px;}\n\ + button {height:40px;width:200px;margin-bottom:20px;margin-top:20px;font-size:24px;}\n\ + </style>\n</head>\n<body>\n" + hf.write(html_header) + + # write the test title and general info header + if(data.stamp['time'] != ""): + hf.write(headline_stamp.format(data.stamp['host'], + data.stamp['kernel'], data.stamp['mode'], data.stamp['time'])) + + # write the dmesg data (device timeline) + if(data.usedmesg): + hf.write(devtl.html['timeline']) + hf.write(devtl.html['legend']) + hf.write('<div id="devicedetail"></div>\n') + hf.write('<div id="devicetree"></div>\n') + + # write the ftrace data (callgraph) + if(data.useftrace): + hf.write('<section id="callgraphs" class="callgraph">\n') + # write out the ftrace data converted to html + html_func_top = '<article id="{0}" class="atop" style="background-color:{1}">\n<input type="checkbox" class="pf" id="f{2}" checked/><label for="f{2}">{3} {4}</label>\n' + html_func_start = '<article>\n<input type="checkbox" class="pf" id="f{0}" checked/><label for="f{0}">{1} {2}</label>\n' + html_func_end = '</article>\n' + html_func_leaf = '<article>{0} {1}</article>\n' + num = 0 + for p in data.phases: + list = data.dmesg[p]['list'] + for devname in data.sortedDevices(p): + if('ftrace' not in list[devname]): + continue + name = devname + if(devname in data.altdevname): + name = data.altdevname[devname] + devid = list[devname]['id'] + cg = list[devname]['ftrace'] + flen = "(%.3f ms)" % ((cg.end - cg.start)*1000) + hf.write(html_func_top.format(devid, data.dmesg[p]['color'], num, name+" "+p, flen)) + num += 1 + for line in cg.list: + if(line.length < 0.000000001): + flen = "" + else: + flen = "(%.3f ms)" % (line.length*1000) + if(line.freturn and line.fcall): + hf.write(html_func_leaf.format(line.name, flen)) + elif(line.freturn): + hf.write(html_func_end) + else: + hf.write(html_func_start.format(num, line.name, flen)) + num += 1 + hf.write(html_func_end) + hf.write("\n\n </section>\n") + # write the footer and close + addScriptCode(hf) + hf.write("</body>\n</html>\n") + hf.close() + return True + +def addScriptCode(hf): + global data + + t0 = (data.start - data.tSuspended) * 1000 + tMax = (data.end - data.tSuspended) * 1000 + # create an array in javascript memory with the device details + detail = ' var bounds = [%f,%f];\n' % (t0, tMax) + detail += ' var d = [];\n' + dfmt = ' d["%s"] = { n:"%s", p:"%s", c:[%s] };\n'; + for p in data.dmesg: + list = data.dmesg[p]['list'] + for d in list: + parent = data.deviceParentID(d, p) + idlist = data.deviceChildrenIDs(d, p) + idstr = "" + for i in idlist: + if(idstr == ""): + idstr += '"'+i+'"' + else: + idstr += ', '+'"'+i+'"' + detail += dfmt % (list[d]['id'], d, parent, idstr) + + # add the code which will manipulate the data in the browser + script_code = \ + '<script type="text/javascript">\n'+detail+\ + ' var filter = [];\n'\ + ' var table = [];\n'\ + ' function deviceParent(devid) {\n'\ + ' var devlist = [];\n'\ + ' if(filter.indexOf(devid) < 0) filter[filter.length] = devid;\n'\ + ' if(d[devid].p in d)\n'\ + ' devlist = deviceParent(d[devid].p);\n'\ + ' else if(d[devid].p != "")\n'\ + ' devlist = [d[devid].p];\n'\ + ' devlist[devlist.length] = d[devid].n;\n'\ + ' return devlist;\n'\ + ' }\n'\ + ' function deviceChildren(devid, column, row) {\n'\ + ' if(!(devid in d)) return;\n'\ + ' if(filter.indexOf(devid) < 0) filter[filter.length] = devid;\n'\ + ' var cell = {name: d[devid].n, span: 1};\n'\ + ' var span = 0;\n'\ + ' if(column >= table.length) table[column] = [];\n'\ + ' table[column][row] = cell;\n'\ + ' for(var i = 0; i < d[devid].c.length; i++) {\n'\ + ' var cid = d[devid].c[i];\n'\ + ' span += deviceChildren(cid, column+1, row+span);\n'\ + ' }\n'\ + ' if(span == 0) span = 1;\n'\ + ' table[column][row].span = span;\n'\ + ' return span;\n'\ + ' }\n'\ + ' function deviceTree(devid, resume) {\n'\ + ' var html = "<table border=1>";\n'\ + ' filter = [];\n'\ + ' table = [];\n'\ + ' plist = deviceParent(devid);\n'\ + ' var devidx = plist.length - 1;\n'\ + ' for(var i = 0; i < devidx; i++)\n'\ + ' table[i] = [{name: plist[i], span: 1}];\n'\ + ' deviceChildren(devid, devidx, 0);\n'\ + ' for(var i = 0; i < devidx; i++)\n'\ + ' table[i][0].span = table[devidx][0].span;\n'\ + ' for(var row = 0; row < table[0][0].span; row++) {\n'\ + ' html += "<tr>";\n'\ + ' for(var col = 0; col < table.length; col++)\n'\ + ' if(row in table[col]) {\n'\ + ' var cell = table[col][row];\n'\ + ' var args = "";\n'\ + ' if(cell.span > 1)\n'\ + ' args += " rowspan="+cell.span;\n'\ + ' if((col == devidx) && (row == 0))\n'\ + ' args += " class=tdhl";\n'\ + ' if(resume)\n'\ + ' html += "<td"+args+">"+cell.name+" →</td>";\n'\ + ' else\n'\ + ' html += "<td"+args+">← "+cell.name+"</td>";\n'\ + ' }\n'\ + ' html += "</tr>";\n'\ + ' }\n'\ + ' html += "</table>";\n'\ + ' return html;\n'\ + ' }\n'\ + ' function zoomTimeline() {\n'\ + ' var timescale = document.getElementById("timescale");\n'\ + ' var dmesg = document.getElementById("dmesg");\n'\ + ' var zoombox = document.getElementById("dmesgzoombox");\n'\ + ' var val = parseFloat(dmesg.style.width);\n'\ + ' var newval = 100;\n'\ + ' var sh = window.outerWidth / 2;\n'\ + ' if(this.id == "zoomin") {\n'\ + ' newval = val * 1.2;\n'\ + ' if(newval > 40000) newval = 40000;\n'\ + ' dmesg.style.width = newval+"%";\n'\ + ' zoombox.scrollLeft = ((zoombox.scrollLeft + sh) * newval / val) - sh;\n'\ + ' } else if (this.id == "zoomout") {\n'\ + ' newval = val / 1.2;\n'\ + ' if(newval < 100) newval = 100;\n'\ + ' dmesg.style.width = newval+"%";\n'\ + ' zoombox.scrollLeft = ((zoombox.scrollLeft + sh) * newval / val) - sh;\n'\ + ' } else {\n'\ + ' zoombox.scrollLeft = 0;\n'\ + ' dmesg.style.width = "100%";\n'\ + ' }\n'\ + ' var html = "";\n'\ + ' var t0 = bounds[0];\n'\ + ' var tMax = bounds[1];\n'\ + ' var tTotal = tMax - t0;\n'\ + ' var wTotal = tTotal * 100.0 / newval;\n'\ + ' for(var tS = 1000; (wTotal / tS) < 3; tS /= 10);\n'\ + ' if(tS < 1) tS = 1;\n'\ + ' for(var s = ((t0 / tS)|0) * tS; s < tMax; s += tS) {\n'\ + ' var pos = (tMax - s) * 100.0 / tTotal;\n'\ + ' var name = (s == 0)?"S/R":(s+"ms");\n'\ + ' html += \"<div class=\\\"t\\\" style=\\\"right:\"+pos+\"%\\\">\"+name+\"</div>\";\n'\ + ' }\n'\ + ' timescale.innerHTML = html;\n'\ + ' }\n'\ + ' function deviceDetail() {\n'\ + ' var devtitle = document.getElementById("devicedetail");\n'\ + ' devtitle.innerHTML = "<h1>"+this.title+"</h1>";\n'\ + ' var devtree = document.getElementById("devicetree");\n'\ + ' devtree.innerHTML = deviceTree(this.id, (this.title.indexOf("resume") >= 0));\n'\ + ' var cglist = document.getElementById("callgraphs");\n'\ + ' if(!cglist) return;\n'\ + ' var cg = cglist.getElementsByClassName("atop");\n'\ + ' for (var i = 0; i < cg.length; i++) {\n'\ + ' if(filter.indexOf(cg[i].id) >= 0) {\n'\ + ' cg[i].style.display = "block";\n'\ + ' } else {\n'\ + ' cg[i].style.display = "none";\n'\ + ' }\n'\ + ' }\n'\ + ' }\n'\ + ' window.addEventListener("load", function () {\n'\ + ' var dmesg = document.getElementById("dmesg");\n'\ + ' dmesg.style.width = "100%"\n'\ + ' document.getElementById("zoomin").onclick = zoomTimeline;\n'\ + ' document.getElementById("zoomout").onclick = zoomTimeline;\n'\ + ' document.getElementById("zoomdef").onclick = zoomTimeline;\n'\ + ' var dev = dmesg.getElementsByClassName("thread");\n'\ + ' for (var i = 0; i < dev.length; i++) {\n'\ + ' dev[i].onclick = deviceDetail;\n'\ + ' }\n'\ + ' zoomTimeline();\n'\ + ' });\n'\ + '</script>\n' + hf.write(script_code); + +# Function: executeSuspend +# Description: +# Execute system suspend through the sysfs interface +def executeSuspend(): + global sysvals, data + + detectUSB() + pf = open(sysvals.powerfile, 'w') + # clear the kernel ring buffer just as we start + os.system("dmesg -C") + # start ftrace + if(data.useftrace): + print("START TRACING") + os.system("echo 1 > "+sysvals.tpath+"tracing_on") + os.system("echo SUSPEND START > "+sysvals.tpath+"trace_marker") + # initiate suspend + if(sysvals.rtcwake): + print("SUSPEND START") + os.system("rtcwake -s 10 -m "+sysvals.suspendmode) + else: + print("SUSPEND START (press a key to resume)") + pf.write(sysvals.suspendmode) + # execution will pause here + pf.close() + # return from suspend + print("RESUME COMPLETE") + # stop ftrace + if(data.useftrace): + os.system("echo RESUME COMPLETE > "+sysvals.tpath+"trace_marker") + os.system("echo 0 > "+sysvals.tpath+"tracing_on") + print("CAPTURING FTRACE") + os.system("echo \""+sysvals.teststamp+"\" > "+sysvals.ftracefile) + os.system("cat "+sysvals.tpath+"trace >> "+sysvals.ftracefile) + # grab a copy of the dmesg output + print("CAPTURING DMESG") + os.system("echo \""+sysvals.teststamp+"\" > "+sysvals.dmesgfile) + os.system("dmesg -c >> "+sysvals.dmesgfile) + +# Function: detectUSB +# Description: +# Detect all the USB hosts and devices currently connected +def detectUSB(): + global sysvals, data + + for dirname, dirnames, filenames in os.walk("/sys/devices"): + if(re.match(r".*/usb[0-9]*.*", dirname) and + "idVendor" in filenames and "idProduct" in filenames): + vid = os.popen("cat %s/idVendor 2>/dev/null" % dirname).read().replace('\n', '') + pid = os.popen("cat %s/idProduct 2>/dev/null" % dirname).read().replace('\n', '') + product = os.popen("cat %s/product 2>/dev/null" % dirname).read().replace('\n', '') + name = dirname.split('/')[-1] + if(len(product) > 0): + data.altdevname[name] = "%s [%s]" % (product, name) + else: + data.altdevname[name] = "%s:%s [%s]" % (vid, pid, name) + +def getModes(): + global sysvals + modes = "" + if(os.path.exists(sysvals.powerfile)): + fp = open(sysvals.powerfile, 'r') + modes = string.split(fp.read()) + fp.close() + return modes + +# Function: statusCheck +# Description: +# Verify that the requested command and options will work +def statusCheck(dryrun): + global sysvals, data + res = dict() + + if(data.notestrun): + print("SUCCESS: The command should run!") + return + + # check we have root access + check = "YES" + if(os.environ['USER'] != "root"): + if(not dryrun): + doError("root access is required", False) + check = "NO" + res[" have root access: "] = check + + # check sysfs is mounted + check = "YES" + if(not os.path.exists(sysvals.powerfile)): + if(not dryrun): + doError("sysfs must be mounted", False) + check = "NO" + res[" is sysfs mounted: "] = check + + # check target mode is a valid mode + check = "YES" + modes = getModes() + if(sysvals.suspendmode not in modes): + if(not dryrun): + doError("%s is not a value power mode" % sysvals.suspendmode, False) + check = "NO" + res[" is "+sysvals.suspendmode+" a power mode: "] = check + + # check if ftrace is available + if(data.useftrace): + check = "YES" + if(not verifyFtrace()): + if(not dryrun): + doError("ftrace is not configured", False) + check = "NO" + res[" is ftrace usable: "] = check + + # check if rtcwake + if(sysvals.rtcwake): + check = "YES" + version = os.popen("rtcwake -V 2>/dev/null").read() + if(not version.startswith("rtcwake")): + if(not dryrun): + doError("rtcwake is not installed", False) + check = "NO" + res[" is rtcwake usable: "] = check + + if(dryrun): + status = True + print("Checking if system can run the current command:") + for r in res: + print("%s\t%s" % (r, res[r])) + if(res[r] != "YES"): + status = False + if(status): + print("SUCCESS: The command should run!") + else: + print("FAILURE: The command won't run!") + +def printHelp(): + global sysvals + modes = getModes() + + print("") + print("AnalyzeSuspend") + print("Usage: sudo analyze_suspend.py <options>") + print("") + print("Description:") + print(" Initiates a system suspend/resume while capturing dmesg") + print(" and (optionally) ftrace data to analyze device timing") + print("") + print(" Generates output files in subdirectory: suspend-mmddyy-HHMMSS") + print(" HTML output: <hostname>_<mode>.html") + print(" raw dmesg output: <hostname>_<mode>_dmesg.txt") + print(" raw ftrace output (with -f): <hostname>_<mode>_ftrace.txt") + print("") + print("Options:") + print(" [general]") + print(" -h Print this help text") + print(" -verbose Print extra information during execution and analysis") + print(" -status Test to see if the system is enabled to run this tool") + print(" -modes List available suspend modes") + print(" -m mode Mode to initiate for suspend %s (default: %s)") % (modes, sysvals.suspendmode) + print(" -rtcwake Use rtcwake to autoresume after 10 seconds (default: disabled)") + print(" -f Use ftrace to create device callgraphs (default: disabled)") + print(" [re-analyze data from previous runs]") + print(" -dmesg dmesgfile Create HTML timeline from dmesg file") + print(" -ftrace ftracefile Create HTML callgraph from ftrace file") + print("") + return True + +def doError(msg, help): + print("ERROR: %s") % msg + if(help == True): + printHelp() + sys.exit() + +# -- script main -- +# loop through the command line arguments +cmd = "" +args = iter(sys.argv[1:]) +for arg in args: + if(arg == "-m"): + try: + val = args.next() + except: + doError("No mode supplied", True) + sysvals.suspendmode = val + elif(arg == "-f"): + data.useftrace = True + elif(arg == "-modes"): + cmd = "modes" + elif(arg == "-status"): + cmd = "status" + elif(arg == "-verbose"): + data.verbose = True + elif(arg == "-rtcwake"): + sysvals.rtcwake = True + elif(arg == "-dmesg"): + try: + val = args.next() + except: + doError("No dmesg file supplied", True) + data.notestrun = True + data.usedmesg = True + sysvals.dmesgfile = val + elif(arg == "-ftrace"): + try: + val = args.next() + except: + doError("No ftrace file supplied", True) + data.notestrun = True + data.useftrace = True + sysvals.ftracefile = val + elif(arg == "-h"): + printHelp() + sys.exit() + else: + doError("Invalid argument: "+arg, True) + +# just run a utility command and exit +if(cmd != ""): + if(cmd == "status"): + statusCheck(True) + elif(cmd == "modes"): + modes = getModes() + print modes + sys.exit() + +data.initialize() + +# if instructed, re-analyze existing data files +if(data.notestrun): + sysvals.setOutputFile() + data.vprint("Output file: %s" % sysvals.htmlfile) + if(sysvals.dmesgfile != ""): + analyzeKernelLog() + if(sysvals.ftracefile != ""): + analyzeTraceLog() + createHTML() + sys.exit() + +# verify that we can run a test +data.usedmesg = True +statusCheck(False) + +# prepare for the test +if(data.useftrace): + initFtrace() +sysvals.initTestOutput() + +data.vprint("Output files:\n %s" % sysvals.dmesgfile) +if(data.useftrace): + data.vprint(" %s" % sysvals.ftracefile) +data.vprint(" %s" % sysvals.htmlfile) + +# execute the test +executeSuspend() +analyzeKernelLog() +if(data.useftrace): + analyzeTraceLog() +createHTML() diff --git a/tools/power/cpupower/debug/kernel/cpufreq-test_tsc.c b/tools/power/cpupower/debug/kernel/cpufreq-test_tsc.c index 66cace601e57..0f10b81e3322 100644 --- a/tools/power/cpupower/debug/kernel/cpufreq-test_tsc.c +++ b/tools/power/cpupower/debug/kernel/cpufreq-test_tsc.c @@ -25,12 +25,9 @@ #include <linux/module.h> #include <linux/init.h> #include <linux/delay.h> - +#include <linux/acpi.h> #include <asm/io.h> -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> - static int pm_tmr_ioport = 0; /*helper function to safely read acpi pm timesource*/ diff --git a/tools/power/cpupower/utils/cpufreq-set.c b/tools/power/cpupower/utils/cpufreq-set.c index dd1539eb8c63..a416de80c55e 100644 --- a/tools/power/cpupower/utils/cpufreq-set.c +++ b/tools/power/cpupower/utils/cpufreq-set.c @@ -257,7 +257,7 @@ int cmd_freq_set(int argc, char **argv) print_unknown_arg(); return -EINVAL; } - if ((sscanf(optarg, "%s", gov)) != 1) { + if ((sscanf(optarg, "%19s", gov)) != 1) { print_unknown_arg(); return -EINVAL; } |
