diff options
Diffstat (limited to 'drivers/acpi')
45 files changed, 1749 insertions, 3037 deletions
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig index 22327e6a7236..5d9248526d78 100644 --- a/drivers/acpi/Kconfig +++ b/drivers/acpi/Kconfig @@ -24,7 +24,7 @@ menuconfig ACPI are configured, ACPI is used. The project home page for the Linux ACPI subsystem is here: - <http://www.lesswatts.org/projects/acpi/> + <https://01.org/linux-acpi> Linux support for ACPI is based on Intel Corporation's ACPI Component Architecture (ACPI CA). For more information on the @@ -56,23 +56,6 @@ config ACPI_PROCFS Say N to delete /proc/acpi/ files that have moved to /sys/ -config ACPI_PROCFS_POWER - bool "Deprecated power /proc/acpi directories" - depends on PROC_FS - help - For backwards compatibility, this option allows - deprecated power /proc/acpi/ directories to exist, even when - they have been replaced by functions in /sys. - The deprecated directories (and their replacements) include: - /proc/acpi/battery/* (/sys/class/power_supply/*) - /proc/acpi/ac_adapter/* (sys/class/power_supply/*) - This option has no effect on /proc/acpi/ directories - and functions, which do not yet exist in /sys - This option, together with the proc directories, will be - deleted in 2.6.39. - - Say N to delete power /proc/acpi/ directories that have moved to /sys/ - config ACPI_EC_DEBUGFS tristate "EC read/write access through /sys/kernel/debug/ec" default n @@ -123,9 +106,9 @@ config ACPI_BUTTON default y help This driver handles events on the power, sleep, and lid buttons. - A daemon reads /proc/acpi/event and perform user-defined actions - such as shutting down the system. This is necessary for - software-controlled poweroff. + A daemon reads events from input devices or via netlink and + performs user-defined actions such as shutting down the system. + This is necessary for software-controlled poweroff. To compile this driver as a module, choose M here: the module will be called button. @@ -175,9 +158,10 @@ config ACPI_PROCESSOR To compile this driver as a module, choose M here: the module will be called processor. + config ACPI_IPMI tristate "IPMI" - depends on IPMI_SI && IPMI_HANDLER + depends on IPMI_SI default n help This driver enables the ACPI to access the BMC controller. And it @@ -251,17 +235,6 @@ config ACPI_INITRD_TABLE_OVERRIDE initrd, therefore it's safe to say Y. See Documentation/acpi/initrd_table_override.txt for details -config ACPI_BLACKLIST_YEAR - int "Disable ACPI for systems before Jan 1st this year" if X86_32 - default 0 - help - Enter a 4-digit year, e.g., 2001, to disable ACPI by default - on platforms with DMI BIOS date before January 1st that year. - "acpi=force" can be used to override this mechanism. - - Enter 0 to disable this mechanism and allow ACPI to - run by default no matter what the year. (default) - config ACPI_DEBUG bool "Debug Statements" default n @@ -372,4 +345,25 @@ config ACPI_BGRT source "drivers/acpi/apei/Kconfig" +config ACPI_EXTLOG + tristate "Extended Error Log support" + depends on X86_MCE && X86_LOCAL_APIC + select EFI + select UEFI_CPER + default n + help + Certain usages such as Predictive Failure Analysis (PFA) require + more information about the error than what can be described in + processor machine check banks. Most server processors log + additional information about the error in processor uncore + registers. Since the addresses and layout of these registers vary + widely from one processor to another, system software cannot + readily make use of them. To complicate matters further, some of + the additional error information cannot be constructed without + detailed knowledge about platform topology. + + Enhanced MCA Logging allows firmware to provide additional error + information to system software, synchronous with MCE or CMCI. This + driver adds support for that functionality. + endif # ACPI diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile index cdaf68b58b00..0331f91d56e6 100644 --- a/drivers/acpi/Makefile +++ b/drivers/acpi/Makefile @@ -47,7 +47,6 @@ acpi-y += sysfs.o acpi-$(CONFIG_X86) += acpi_cmos_rtc.o acpi-$(CONFIG_DEBUG_FS) += debugfs.o acpi-$(CONFIG_ACPI_NUMA) += numa.o -acpi-$(CONFIG_ACPI_PROCFS_POWER) += cm_sbs.o ifdef CONFIG_ACPI_VIDEO acpi-y += video_detect.o endif @@ -82,3 +81,5 @@ processor-$(CONFIG_CPU_FREQ) += processor_perflib.o obj-$(CONFIG_ACPI_PROCESSOR_AGGREGATOR) += acpi_pad.o obj-$(CONFIG_ACPI_APEI) += apei/ + +obj-$(CONFIG_ACPI_EXTLOG) += acpi_extlog.o diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c index f37beaa32750..8711e3797165 100644 --- a/drivers/acpi/ac.c +++ b/drivers/acpi/ac.c @@ -30,10 +30,7 @@ #include <linux/types.h> #include <linux/dmi.h> #include <linux/delay.h> -#ifdef CONFIG_ACPI_PROCFS_POWER -#include <linux/proc_fs.h> -#include <linux/seq_file.h> -#endif +#include <linux/platform_device.h> #include <linux/power_supply.h> #include <acpi/acpi_bus.h> #include <acpi/acpi_drivers.h> @@ -55,75 +52,30 @@ MODULE_AUTHOR("Paul Diefenbaugh"); MODULE_DESCRIPTION("ACPI AC Adapter Driver"); MODULE_LICENSE("GPL"); -#ifdef CONFIG_ACPI_PROCFS_POWER -extern struct proc_dir_entry *acpi_lock_ac_dir(void); -extern void *acpi_unlock_ac_dir(struct proc_dir_entry *acpi_ac_dir); -static int acpi_ac_open_fs(struct inode *inode, struct file *file); -#endif - -static int acpi_ac_add(struct acpi_device *device); -static int acpi_ac_remove(struct acpi_device *device); -static void acpi_ac_notify(struct acpi_device *device, u32 event); - -static const struct acpi_device_id ac_device_ids[] = { - {"ACPI0003", 0}, - {"", 0}, -}; -MODULE_DEVICE_TABLE(acpi, ac_device_ids); - -#ifdef CONFIG_PM_SLEEP -static int acpi_ac_resume(struct device *dev); -#endif -static SIMPLE_DEV_PM_OPS(acpi_ac_pm, NULL, acpi_ac_resume); - static int ac_sleep_before_get_state_ms; -static struct acpi_driver acpi_ac_driver = { - .name = "ac", - .class = ACPI_AC_CLASS, - .ids = ac_device_ids, - .flags = ACPI_DRIVER_ALL_NOTIFY_EVENTS, - .ops = { - .add = acpi_ac_add, - .remove = acpi_ac_remove, - .notify = acpi_ac_notify, - }, - .drv.pm = &acpi_ac_pm, -}; - struct acpi_ac { struct power_supply charger; - struct acpi_device * device; + struct platform_device *pdev; unsigned long long state; }; #define to_acpi_ac(x) container_of(x, struct acpi_ac, charger) -#ifdef CONFIG_ACPI_PROCFS_POWER -static const struct file_operations acpi_ac_fops = { - .owner = THIS_MODULE, - .open = acpi_ac_open_fs, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; -#endif - /* -------------------------------------------------------------------------- AC Adapter Management -------------------------------------------------------------------------- */ static int acpi_ac_get_state(struct acpi_ac *ac) { - acpi_status status = AE_OK; - - - if (!ac) - return -EINVAL; + acpi_status status; + acpi_handle handle = ACPI_HANDLE(&ac->pdev->dev); - status = acpi_evaluate_integer(ac->device->handle, "_PSR", NULL, &ac->state); + status = acpi_evaluate_integer(handle, "_PSR", NULL, + &ac->state); if (ACPI_FAILURE(status)) { - ACPI_EXCEPTION((AE_INFO, status, "Error reading AC Adapter state")); + ACPI_EXCEPTION((AE_INFO, status, + "Error reading AC Adapter state")); ac->state = ACPI_AC_STATUS_UNKNOWN; return -ENODEV; } @@ -160,91 +112,14 @@ static enum power_supply_property ac_props[] = { POWER_SUPPLY_PROP_ONLINE, }; -#ifdef CONFIG_ACPI_PROCFS_POWER -/* -------------------------------------------------------------------------- - FS Interface (/proc) - -------------------------------------------------------------------------- */ - -static struct proc_dir_entry *acpi_ac_dir; - -static int acpi_ac_seq_show(struct seq_file *seq, void *offset) -{ - struct acpi_ac *ac = seq->private; - - - if (!ac) - return 0; - - if (acpi_ac_get_state(ac)) { - seq_puts(seq, "ERROR: Unable to read AC Adapter state\n"); - return 0; - } - - seq_puts(seq, "state: "); - switch (ac->state) { - case ACPI_AC_STATUS_OFFLINE: - seq_puts(seq, "off-line\n"); - break; - case ACPI_AC_STATUS_ONLINE: - seq_puts(seq, "on-line\n"); - break; - default: - seq_puts(seq, "unknown\n"); - break; - } - - return 0; -} - -static int acpi_ac_open_fs(struct inode *inode, struct file *file) -{ - return single_open(file, acpi_ac_seq_show, PDE_DATA(inode)); -} - -static int acpi_ac_add_fs(struct acpi_device *device) -{ - struct proc_dir_entry *entry = NULL; - - printk(KERN_WARNING PREFIX "Deprecated procfs I/F for AC is loaded," - " please retry with CONFIG_ACPI_PROCFS_POWER cleared\n"); - if (!acpi_device_dir(device)) { - acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device), - acpi_ac_dir); - if (!acpi_device_dir(device)) - return -ENODEV; - } - - /* 'state' [R] */ - entry = proc_create_data(ACPI_AC_FILE_STATE, - S_IRUGO, acpi_device_dir(device), - &acpi_ac_fops, acpi_driver_data(device)); - if (!entry) - return -ENODEV; - return 0; -} - -static int acpi_ac_remove_fs(struct acpi_device *device) -{ - - if (acpi_device_dir(device)) { - remove_proc_entry(ACPI_AC_FILE_STATE, acpi_device_dir(device)); - - remove_proc_entry(acpi_device_bid(device), acpi_ac_dir); - acpi_device_dir(device) = NULL; - } - - return 0; -} -#endif - /* -------------------------------------------------------------------------- Driver Model -------------------------------------------------------------------------- */ -static void acpi_ac_notify(struct acpi_device *device, u32 event) +static void acpi_ac_notify_handler(acpi_handle handle, u32 event, void *data) { - struct acpi_ac *ac = acpi_driver_data(device); - + struct acpi_ac *ac = data; + struct acpi_device *adev; if (!ac) return; @@ -267,10 +142,11 @@ static void acpi_ac_notify(struct acpi_device *device, u32 event) msleep(ac_sleep_before_get_state_ms); acpi_ac_get_state(ac); - acpi_bus_generate_netlink_event(device->pnp.device_class, - dev_name(&device->dev), event, - (u32) ac->state); - acpi_notifier_call_chain(device, event, (u32) ac->state); + adev = ACPI_COMPANION(&ac->pdev->dev); + acpi_bus_generate_netlink_event(adev->pnp.device_class, + dev_name(&ac->pdev->dev), + event, (u32) ac->state); + acpi_notifier_call_chain(adev, event, (u32) ac->state); kobject_uevent(&ac->charger.dev->kobj, KOBJ_CHANGE); } @@ -295,53 +171,54 @@ static struct dmi_system_id ac_dmi_table[] = { {}, }; -static int acpi_ac_add(struct acpi_device *device) +static int acpi_ac_probe(struct platform_device *pdev) { int result = 0; struct acpi_ac *ac = NULL; + struct acpi_device *adev; - - if (!device) + if (!pdev) return -EINVAL; + adev = ACPI_COMPANION(&pdev->dev); + if (!adev) + return -ENODEV; + ac = kzalloc(sizeof(struct acpi_ac), GFP_KERNEL); if (!ac) return -ENOMEM; - ac->device = device; - strcpy(acpi_device_name(device), ACPI_AC_DEVICE_NAME); - strcpy(acpi_device_class(device), ACPI_AC_CLASS); - device->driver_data = ac; + strcpy(acpi_device_name(adev), ACPI_AC_DEVICE_NAME); + strcpy(acpi_device_class(adev), ACPI_AC_CLASS); + ac->pdev = pdev; + platform_set_drvdata(pdev, ac); result = acpi_ac_get_state(ac); if (result) goto end; -#ifdef CONFIG_ACPI_PROCFS_POWER - result = acpi_ac_add_fs(device); -#endif - if (result) - goto end; - ac->charger.name = acpi_device_bid(device); + ac->charger.name = acpi_device_bid(adev); ac->charger.type = POWER_SUPPLY_TYPE_MAINS; ac->charger.properties = ac_props; ac->charger.num_properties = ARRAY_SIZE(ac_props); ac->charger.get_property = get_ac_property; - result = power_supply_register(&ac->device->dev, &ac->charger); + result = power_supply_register(&pdev->dev, &ac->charger); if (result) goto end; + result = acpi_install_notify_handler(ACPI_HANDLE(&pdev->dev), + ACPI_DEVICE_NOTIFY, acpi_ac_notify_handler, ac); + if (result) { + power_supply_unregister(&ac->charger); + goto end; + } printk(KERN_INFO PREFIX "%s [%s] (%s)\n", - acpi_device_name(device), acpi_device_bid(device), + acpi_device_name(adev), acpi_device_bid(adev), ac->state ? "on-line" : "off-line"); - end: - if (result) { -#ifdef CONFIG_ACPI_PROCFS_POWER - acpi_ac_remove_fs(device); -#endif +end: + if (result) kfree(ac); - } dmi_check_system(ac_dmi_table); return result; @@ -356,7 +233,7 @@ static int acpi_ac_resume(struct device *dev) if (!dev) return -EINVAL; - ac = acpi_driver_data(to_acpi_device(dev)); + ac = platform_get_drvdata(to_platform_device(dev)); if (!ac) return -EINVAL; @@ -368,28 +245,44 @@ static int acpi_ac_resume(struct device *dev) return 0; } #endif +static SIMPLE_DEV_PM_OPS(acpi_ac_pm_ops, NULL, acpi_ac_resume); -static int acpi_ac_remove(struct acpi_device *device) +static int acpi_ac_remove(struct platform_device *pdev) { - struct acpi_ac *ac = NULL; - + struct acpi_ac *ac; - if (!device || !acpi_driver_data(device)) + if (!pdev) return -EINVAL; - ac = acpi_driver_data(device); + acpi_remove_notify_handler(ACPI_HANDLE(&pdev->dev), + ACPI_DEVICE_NOTIFY, acpi_ac_notify_handler); + ac = platform_get_drvdata(pdev); if (ac->charger.dev) power_supply_unregister(&ac->charger); -#ifdef CONFIG_ACPI_PROCFS_POWER - acpi_ac_remove_fs(device); -#endif kfree(ac); return 0; } +static const struct acpi_device_id acpi_ac_match[] = { + { "ACPI0003", 0 }, + { } +}; +MODULE_DEVICE_TABLE(acpi, acpi_ac_match); + +static struct platform_driver acpi_ac_driver = { + .probe = acpi_ac_probe, + .remove = acpi_ac_remove, + .driver = { + .name = "acpi-ac", + .owner = THIS_MODULE, + .pm = &acpi_ac_pm_ops, + .acpi_match_table = ACPI_PTR(acpi_ac_match), + }, +}; + static int __init acpi_ac_init(void) { int result; @@ -397,34 +290,16 @@ static int __init acpi_ac_init(void) if (acpi_disabled) return -ENODEV; -#ifdef CONFIG_ACPI_PROCFS_POWER - acpi_ac_dir = acpi_lock_ac_dir(); - if (!acpi_ac_dir) + result = platform_driver_register(&acpi_ac_driver); + if (result < 0) return -ENODEV; -#endif - - result = acpi_bus_register_driver(&acpi_ac_driver); - if (result < 0) { -#ifdef CONFIG_ACPI_PROCFS_POWER - acpi_unlock_ac_dir(acpi_ac_dir); -#endif - return -ENODEV; - } return 0; } static void __exit acpi_ac_exit(void) { - - acpi_bus_unregister_driver(&acpi_ac_driver); - -#ifdef CONFIG_ACPI_PROCFS_POWER - acpi_unlock_ac_dir(acpi_ac_dir); -#endif - - return; + platform_driver_unregister(&acpi_ac_driver); } - module_init(acpi_ac_init); module_exit(acpi_ac_exit); diff --git a/drivers/acpi/acpi_extlog.c b/drivers/acpi/acpi_extlog.c new file mode 100644 index 000000000000..a6869e110ce5 --- /dev/null +++ b/drivers/acpi/acpi_extlog.c @@ -0,0 +1,327 @@ +/* + * Extended Error Log driver + * + * Copyright (C) 2013 Intel Corp. + * Author: Chen, Gong <gong.chen@intel.com> + * + * This file is licensed under GPLv2. + */ + +#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> +#include <asm/mce.h> + +#include "apei/apei-internal.h" + +#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 + +#define EMCA_BUG \ + "Can not request iomem region <0x%016llx-0x%016llx> - eMCA disabled\n" + +struct extlog_l1_head { + u32 ver; /* Header Version */ + u32 hdr_len; /* Header Length */ + u64 total_len; /* entire L1 Directory length including this header */ + u64 elog_base; /* MCA Error Log Directory base address */ + u64 elog_len; /* MCA Error Log Directory length */ + u32 flags; /* bit 0 - OS/VMM Opt-in */ + u8 rev0[12]; + u32 entries; /* Valid L1 Directory entries per logical processor */ + u8 rev1[12]; +}; + +static u8 extlog_dsm_uuid[] = "663E35AF-CC10-41A4-88EA-5470AF055295"; + +/* L1 table related physical address */ +static u64 elog_base; +static size_t elog_size; +static u64 l1_dirbase; +static size_t l1_size; + +/* L1 table related virtual address */ +static void __iomem *extlog_l1_addr; +static void __iomem *elog_addr; + +static void *elog_buf; + +static u64 *l1_entry_base; +static u32 l1_percpu_entry; + +#define ELOG_IDX(cpu, bank) \ + (cpu_physical_id(cpu) * l1_percpu_entry + (bank)) + +#define ELOG_ENTRY_DATA(idx) \ + (*(l1_entry_base + (idx))) + +#define ELOG_ENTRY_ADDR(phyaddr) \ + (phyaddr - elog_base + (u8 *)elog_addr) + +static struct acpi_generic_status *extlog_elog_entry_check(int cpu, int bank) +{ + int idx; + u64 data; + struct acpi_generic_status *estatus; + + WARN_ON(cpu < 0); + idx = ELOG_IDX(cpu, bank); + data = ELOG_ENTRY_DATA(idx); + if ((data & ELOG_ENTRY_VALID) == 0) + return NULL; + + data &= EXT_ELOG_ENTRY_MASK; + estatus = (struct acpi_generic_status *)ELOG_ENTRY_ADDR(data); + + /* if no valid data in elog entry, just return */ + if (estatus->block_status == 0) + return NULL; + + return estatus; +} + +static void __print_extlog_rcd(const char *pfx, + struct acpi_generic_status *estatus, int cpu) +{ + static atomic_t seqno; + unsigned int curr_seqno; + char pfx_seq[64]; + + if (!pfx) { + if (estatus->error_severity <= CPER_SEV_CORRECTED) + pfx = KERN_INFO; + else + pfx = KERN_ERR; + } + curr_seqno = atomic_inc_return(&seqno); + snprintf(pfx_seq, sizeof(pfx_seq), "%s{%u}", pfx, curr_seqno); + printk("%s""Hardware error detected on CPU%d\n", pfx_seq, cpu); + cper_estatus_print(pfx_seq, estatus); +} + +static int print_extlog_rcd(const char *pfx, + struct acpi_generic_status *estatus, int cpu) +{ + /* Not more than 2 messages every 5 seconds */ + static DEFINE_RATELIMIT_STATE(ratelimit_corrected, 5*HZ, 2); + static DEFINE_RATELIMIT_STATE(ratelimit_uncorrected, 5*HZ, 2); + struct ratelimit_state *ratelimit; + + if (estatus->error_severity == CPER_SEV_CORRECTED || + (estatus->error_severity == CPER_SEV_INFORMATIONAL)) + ratelimit = &ratelimit_corrected; + else + ratelimit = &ratelimit_uncorrected; + if (__ratelimit(ratelimit)) { + __print_extlog_rcd(pfx, estatus, cpu); + return 0; + } + + return 1; +} + +static int extlog_print(struct notifier_block *nb, unsigned long val, + void *data) +{ + struct mce *mce = (struct mce *)data; + int bank = mce->bank; + int cpu = mce->extcpu; + struct acpi_generic_status *estatus; + int rc; + + estatus = extlog_elog_entry_check(cpu, bank); + if (estatus == NULL) + return NOTIFY_DONE; + + memcpy(elog_buf, (void *)estatus, ELOG_ENTRY_LEN); + /* clear record status to enable BIOS to update it again */ + estatus->block_status = 0; + + rc = print_extlog_rcd(NULL, (struct acpi_generic_status *)elog_buf, cpu); + + return NOTIFY_DONE; +} + +static int extlog_get_dsm(acpi_handle handle, int rev, int func, u64 *ret) +{ + 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_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)) + return false; + + if (extlog_get_dsm(handle, EXTLOG_DSM_REV, EXTLOG_FN_ADDR, &ret)) + return false; + + 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", + l1_dirbase); + return false; + } + + return true; +} +static struct notifier_block extlog_mce_dec = { + .notifier_call = extlog_print, +}; + +static int __init extlog_init(void) +{ + struct extlog_l1_head *l1_head; + void __iomem *extlog_l1_hdr; + size_t l1_hdr_size; + struct resource *r; + u64 cap; + int rc; + + rc = -ENODEV; + + rdmsrl(MSR_IA32_MCG_CAP, cap); + if (!(cap & MCG_ELOG_P)) + return rc; + + if (!extlog_get_l1addr()) + return rc; + + rc = -EINVAL; + /* get L1 header to fetch necessary information */ + l1_hdr_size = sizeof(struct extlog_l1_head); + r = request_mem_region(l1_dirbase, l1_hdr_size, "L1 DIR HDR"); + if (!r) { + pr_warn(FW_BUG EMCA_BUG, + (unsigned long long)l1_dirbase, + (unsigned long long)l1_dirbase + l1_hdr_size); + goto err; + } + + extlog_l1_hdr = acpi_os_map_memory(l1_dirbase, l1_hdr_size); + l1_head = (struct extlog_l1_head *)extlog_l1_hdr; + l1_size = l1_head->total_len; + l1_percpu_entry = l1_head->entries; + elog_base = l1_head->elog_base; + elog_size = l1_head->elog_len; + acpi_os_unmap_memory(extlog_l1_hdr, l1_hdr_size); + release_mem_region(l1_dirbase, l1_hdr_size); + + /* remap L1 header again based on completed information */ + r = request_mem_region(l1_dirbase, l1_size, "L1 Table"); + if (!r) { + pr_warn(FW_BUG EMCA_BUG, + (unsigned long long)l1_dirbase, + (unsigned long long)l1_dirbase + l1_size); + goto err; + } + extlog_l1_addr = acpi_os_map_memory(l1_dirbase, l1_size); + l1_entry_base = (u64 *)((u8 *)extlog_l1_addr + l1_hdr_size); + + /* remap elog table */ + r = request_mem_region(elog_base, elog_size, "Elog Table"); + if (!r) { + pr_warn(FW_BUG EMCA_BUG, + (unsigned long long)elog_base, + (unsigned long long)elog_base + elog_size); + goto err_release_l1_dir; + } + elog_addr = acpi_os_map_memory(elog_base, elog_size); + + rc = -ENOMEM; + /* allocate buffer to save elog record */ + elog_buf = kmalloc(ELOG_ENTRY_LEN, GFP_KERNEL); + if (elog_buf == NULL) + goto err_release_elog; + + mce_register_decode_chain(&extlog_mce_dec); + /* enable OS to be involved to take over management from BIOS */ + ((struct extlog_l1_head *)extlog_l1_addr)->flags |= FLAG_OS_OPTIN; + + return 0; + +err_release_elog: + if (elog_addr) + acpi_os_unmap_memory(elog_addr, elog_size); + release_mem_region(elog_base, elog_size); +err_release_l1_dir: + if (extlog_l1_addr) + acpi_os_unmap_memory(extlog_l1_addr, l1_size); + release_mem_region(l1_dirbase, l1_size); +err: + pr_warn(FW_BUG "Extended error log disabled because of problems parsing f/w tables\n"); + return rc; +} + +static void __exit extlog_exit(void) +{ + mce_unregister_decode_chain(&extlog_mce_dec); + ((struct extlog_l1_head *)extlog_l1_addr)->flags &= ~FLAG_OS_OPTIN; + if (extlog_l1_addr) + acpi_os_unmap_memory(extlog_l1_addr, l1_size); + if (elog_addr) + acpi_os_unmap_memory(elog_addr, elog_size); + release_mem_region(elog_base, elog_size); + release_mem_region(l1_dirbase, l1_size); + kfree(elog_buf); +} + +module_init(extlog_init); +module_exit(extlog_exit); + +MODULE_AUTHOR("Chen, Gong <gong.chen@intel.com>"); +MODULE_DESCRIPTION("Extended MCA Error Log Driver"); +MODULE_LICENSE("GPL"); diff --git a/drivers/acpi/acpi_ipmi.c b/drivers/acpi/acpi_ipmi.c index f40acef80269..ac0f52f6df2b 100644 --- a/drivers/acpi/acpi_ipmi.c +++ b/drivers/acpi/acpi_ipmi.c @@ -1,8 +1,9 @@ /* * acpi_ipmi.c - ACPI IPMI opregion * - * Copyright (C) 2010 Intel Corporation - * Copyright (C) 2010 Zhao Yakui <yakui.zhao@intel.com> + * Copyright (C) 2010, 2013 Intel Corporation + * Author: Zhao Yakui <yakui.zhao@intel.com> + * Lv Zheng <lv.zheng@intel.com> * * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ * @@ -23,59 +24,58 @@ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ -#include <linux/kernel.h> #include <linux/module.h> -#include <linux/init.h> -#include <linux/types.h> -#include <linux/delay.h> -#include <linux/proc_fs.h> -#include <linux/seq_file.h> -#include <linux/interrupt.h> -#include <linux/list.h> -#include <linux/spinlock.h> -#include <linux/io.h> -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> +#include <linux/acpi.h> #include <linux/ipmi.h> -#include <linux/device.h> -#include <linux/pnp.h> +#include <linux/spinlock.h> MODULE_AUTHOR("Zhao Yakui"); MODULE_DESCRIPTION("ACPI IPMI Opregion driver"); MODULE_LICENSE("GPL"); -#define IPMI_FLAGS_HANDLER_INSTALL 0 - #define ACPI_IPMI_OK 0 #define ACPI_IPMI_TIMEOUT 0x10 #define ACPI_IPMI_UNKNOWN 0x07 /* the IPMI timeout is 5s */ -#define IPMI_TIMEOUT (5 * HZ) +#define IPMI_TIMEOUT (5000) +#define ACPI_IPMI_MAX_MSG_LENGTH 64 struct acpi_ipmi_device { /* the device list attached to driver_data.ipmi_devices */ struct list_head head; + /* the IPMI request message list */ struct list_head tx_msg_list; - struct mutex tx_msg_lock; + + spinlock_t tx_msg_lock; acpi_handle handle; - struct pnp_dev *pnp_dev; - ipmi_user_t user_interface; + struct device *dev; + ipmi_user_t user_interface; int ipmi_ifnum; /* IPMI interface number */ long curr_msgid; - unsigned long flags; - struct ipmi_smi_info smi_data; + bool dead; + struct kref kref; }; struct ipmi_driver_data { - struct list_head ipmi_devices; - struct ipmi_smi_watcher bmc_events; - struct ipmi_user_hndl ipmi_hndlrs; - struct mutex ipmi_lock; + struct list_head ipmi_devices; + struct ipmi_smi_watcher bmc_events; + struct ipmi_user_hndl ipmi_hndlrs; + struct mutex ipmi_lock; + + /* + * NOTE: IPMI System Interface Selection + * There is no system interface specified by the IPMI operation + * region access. We try to select one system interface with ACPI + * handle set. IPMI messages passed from the ACPI codes are sent + * to this selected global IPMI system interface. + */ + struct acpi_ipmi_device *selected_smi; }; struct acpi_ipmi_msg { struct list_head head; + /* * General speaking the addr type should be SI_ADDR_TYPE. And * the addr channel should be BMC. @@ -85,30 +85,31 @@ struct acpi_ipmi_msg { */ struct ipmi_addr addr; long tx_msgid; + /* it is used to track whether the IPMI message is finished */ struct completion tx_complete; + struct kernel_ipmi_msg tx_message; - int msg_done; - /* tx data . And copy it from ACPI object buffer */ - u8 tx_data[64]; - int tx_len; - u8 rx_data[64]; - int rx_len; + int msg_done; + + /* tx/rx data . And copy it from/to ACPI object buffer */ + u8 data[ACPI_IPMI_MAX_MSG_LENGTH]; + u8 rx_len; + struct acpi_ipmi_device *device; + struct kref kref; }; /* IPMI request/response buffer per ACPI 4.0, sec 5.5.2.4.3.2 */ struct acpi_ipmi_buffer { u8 status; u8 length; - u8 data[64]; + u8 data[ACPI_IPMI_MAX_MSG_LENGTH]; }; static void ipmi_register_bmc(int iface, struct device *dev); static void ipmi_bmc_gone(int iface); static void ipmi_msg_handler(struct ipmi_recv_msg *msg, void *user_msg_data); -static void acpi_add_ipmi_device(struct acpi_ipmi_device *ipmi_device); -static void acpi_remove_ipmi_device(struct acpi_ipmi_device *ipmi_device); static struct ipmi_driver_data driver_data = { .ipmi_devices = LIST_HEAD_INIT(driver_data.ipmi_devices), @@ -120,50 +121,174 @@ static struct ipmi_driver_data driver_data = { .ipmi_hndlrs = { .ipmi_recv_hndl = ipmi_msg_handler, }, + .ipmi_lock = __MUTEX_INITIALIZER(driver_data.ipmi_lock) }; -static struct acpi_ipmi_msg *acpi_alloc_ipmi_msg(struct acpi_ipmi_device *ipmi) +static struct acpi_ipmi_device * +ipmi_dev_alloc(int iface, struct device *dev, acpi_handle handle) { + struct acpi_ipmi_device *ipmi_device; + int err; + ipmi_user_t user; + + ipmi_device = kzalloc(sizeof(*ipmi_device), GFP_KERNEL); + if (!ipmi_device) + return NULL; + + kref_init(&ipmi_device->kref); + INIT_LIST_HEAD(&ipmi_device->head); + INIT_LIST_HEAD(&ipmi_device->tx_msg_list); + spin_lock_init(&ipmi_device->tx_msg_lock); + ipmi_device->handle = handle; + ipmi_device->dev = get_device(dev); + ipmi_device->ipmi_ifnum = iface; + + err = ipmi_create_user(iface, &driver_data.ipmi_hndlrs, + ipmi_device, &user); + if (err) { + put_device(dev); + kfree(ipmi_device); + return NULL; + } + ipmi_device->user_interface = user; + + return ipmi_device; +} + +static void ipmi_dev_release(struct acpi_ipmi_device *ipmi_device) +{ + ipmi_destroy_user(ipmi_device->user_interface); + put_device(ipmi_device->dev); + kfree(ipmi_device); +} + +static void ipmi_dev_release_kref(struct kref *kref) +{ + struct acpi_ipmi_device *ipmi = + container_of(kref, struct acpi_ipmi_device, kref); + + ipmi_dev_release(ipmi); +} + +static void __ipmi_dev_kill(struct acpi_ipmi_device *ipmi_device) +{ + list_del(&ipmi_device->head); + if (driver_data.selected_smi == ipmi_device) + driver_data.selected_smi = NULL; + + /* + * Always setting dead flag after deleting from the list or + * list_for_each_entry() codes must get changed. + */ + ipmi_device->dead = true; +} + +static struct acpi_ipmi_device *acpi_ipmi_dev_get(void) +{ + struct acpi_ipmi_device *ipmi_device = NULL; + + mutex_lock(&driver_data.ipmi_lock); + if (driver_data.selected_smi) { + ipmi_device = driver_data.selected_smi; + kref_get(&ipmi_device->kref); + } + mutex_unlock(&driver_data.ipmi_lock); + + return ipmi_device; +} + +static void acpi_ipmi_dev_put(struct acpi_ipmi_device *ipmi_device) +{ + kref_put(&ipmi_device->kref, ipmi_dev_release_kref); +} + +static struct acpi_ipmi_msg *ipmi_msg_alloc(void) +{ + struct acpi_ipmi_device *ipmi; struct acpi_ipmi_msg *ipmi_msg; - struct pnp_dev *pnp_dev = ipmi->pnp_dev; + + ipmi = acpi_ipmi_dev_get(); + if (!ipmi) + return NULL; ipmi_msg = kzalloc(sizeof(struct acpi_ipmi_msg), GFP_KERNEL); - if (!ipmi_msg) { - dev_warn(&pnp_dev->dev, "Can't allocate memory for ipmi_msg\n"); + if (!ipmi_msg) { + acpi_ipmi_dev_put(ipmi); return NULL; } + + kref_init(&ipmi_msg->kref); init_completion(&ipmi_msg->tx_complete); INIT_LIST_HEAD(&ipmi_msg->head); ipmi_msg->device = ipmi; + ipmi_msg->msg_done = ACPI_IPMI_UNKNOWN; + return ipmi_msg; } -#define IPMI_OP_RGN_NETFN(offset) ((offset >> 8) & 0xff) -#define IPMI_OP_RGN_CMD(offset) (offset & 0xff) -static void acpi_format_ipmi_msg(struct acpi_ipmi_msg *tx_msg, - acpi_physical_address address, - acpi_integer *value) +static void ipmi_msg_release(struct acpi_ipmi_msg *tx_msg) +{ + acpi_ipmi_dev_put(tx_msg->device); + kfree(tx_msg); +} + +static void ipmi_msg_release_kref(struct kref *kref) +{ + struct acpi_ipmi_msg *tx_msg = + container_of(kref, struct acpi_ipmi_msg, kref); + + ipmi_msg_release(tx_msg); +} + +static struct acpi_ipmi_msg *acpi_ipmi_msg_get(struct acpi_ipmi_msg *tx_msg) +{ + kref_get(&tx_msg->kref); + + return tx_msg; +} + +static void acpi_ipmi_msg_put(struct acpi_ipmi_msg *tx_msg) +{ + kref_put(&tx_msg->kref, ipmi_msg_release_kref); +} + +#define IPMI_OP_RGN_NETFN(offset) ((offset >> 8) & 0xff) +#define IPMI_OP_RGN_CMD(offset) (offset & 0xff) +static int acpi_format_ipmi_request(struct acpi_ipmi_msg *tx_msg, + acpi_physical_address address, + acpi_integer *value) { struct kernel_ipmi_msg *msg; struct acpi_ipmi_buffer *buffer; struct acpi_ipmi_device *device; + unsigned long flags; msg = &tx_msg->tx_message; + /* * IPMI network function and command are encoded in the address * within the IPMI OpRegion; see ACPI 4.0, sec 5.5.2.4.3. */ msg->netfn = IPMI_OP_RGN_NETFN(address); msg->cmd = IPMI_OP_RGN_CMD(address); - msg->data = tx_msg->tx_data; + msg->data = tx_msg->data; + /* * value is the parameter passed by the IPMI opregion space handler. * It points to the IPMI request message buffer */ buffer = (struct acpi_ipmi_buffer *)value; + /* copy the tx message data */ + if (buffer->length > ACPI_IPMI_MAX_MSG_LENGTH) { + dev_WARN_ONCE(tx_msg->device->dev, true, + "Unexpected request (msg len %d).\n", + buffer->length); + return -EINVAL; + } msg->data_len = buffer->length; - memcpy(tx_msg->tx_data, buffer->data, msg->data_len); + memcpy(tx_msg->data, buffer->data, msg->data_len); + /* * now the default type is SYSTEM_INTERFACE and channel type is BMC. * If the netfn is APP_REQUEST and the cmd is SEND_MESSAGE, @@ -177,14 +302,17 @@ static void acpi_format_ipmi_msg(struct acpi_ipmi_msg *tx_msg, /* Get the msgid */ device = tx_msg->device; - mutex_lock(&device->tx_msg_lock); + + spin_lock_irqsave(&device->tx_msg_lock, flags); device->curr_msgid++; tx_msg->tx_msgid = device->curr_msgid; - mutex_unlock(&device->tx_msg_lock); + spin_unlock_irqrestore(&device->tx_msg_lock, flags); + + return 0; } static void acpi_format_ipmi_response(struct acpi_ipmi_msg *msg, - acpi_integer *value, int rem_time) + acpi_integer *value) { struct acpi_ipmi_buffer *buffer; @@ -193,109 +321,158 @@ static void acpi_format_ipmi_response(struct acpi_ipmi_msg *msg, * IPMI message returned by IPMI command. */ buffer = (struct acpi_ipmi_buffer *)value; - if (!rem_time && !msg->msg_done) { - buffer->status = ACPI_IPMI_TIMEOUT; - return; - } + /* - * If the flag of msg_done is not set or the recv length is zero, it - * means that the IPMI command is not executed correctly. - * The status code will be ACPI_IPMI_UNKNOWN. + * If the flag of msg_done is not set, it means that the IPMI command is + * not executed correctly. */ - if (!msg->msg_done || !msg->rx_len) { - buffer->status = ACPI_IPMI_UNKNOWN; + buffer->status = msg->msg_done; + if (msg->msg_done != ACPI_IPMI_OK) return; - } + /* * If the IPMI response message is obtained correctly, the status code * will be ACPI_IPMI_OK */ - buffer->status = ACPI_IPMI_OK; buffer->length = msg->rx_len; - memcpy(buffer->data, msg->rx_data, msg->rx_len); + memcpy(buffer->data, msg->data, msg->rx_len); } static void ipmi_flush_tx_msg(struct acpi_ipmi_device *ipmi) { - struct acpi_ipmi_msg *tx_msg, *temp; - int count = HZ / 10; - struct pnp_dev *pnp_dev = ipmi->pnp_dev; + struct acpi_ipmi_msg *tx_msg; + unsigned long flags; + + /* + * NOTE: On-going ipmi_recv_msg + * ipmi_msg_handler() may still be invoked by ipmi_si after + * flushing. But it is safe to do a fast flushing on module_exit() + * without waiting for all ipmi_recv_msg(s) to complete from + * ipmi_msg_handler() as it is ensured by ipmi_si that all + * ipmi_recv_msg(s) are freed after invoking ipmi_destroy_user(). + */ + spin_lock_irqsave(&ipmi->tx_msg_lock, flags); + while (!list_empty(&ipmi->tx_msg_list)) { + tx_msg = list_first_entry(&ipmi->tx_msg_list, + struct acpi_ipmi_msg, + head); + list_del(&tx_msg->head); + spin_unlock_irqrestore(&ipmi->tx_msg_lock, flags); - list_for_each_entry_safe(tx_msg, temp, &ipmi->tx_msg_list, head) { /* wake up the sleep thread on the Tx msg */ complete(&tx_msg->tx_complete); + acpi_ipmi_msg_put(tx_msg); + spin_lock_irqsave(&ipmi->tx_msg_lock, flags); } + spin_unlock_irqrestore(&ipmi->tx_msg_lock, flags); +} - /* wait for about 100ms to flush the tx message list */ - while (count--) { - if (list_empty(&ipmi->tx_msg_list)) +static void ipmi_cancel_tx_msg(struct acpi_ipmi_device *ipmi, + struct acpi_ipmi_msg *msg) +{ + struct acpi_ipmi_msg *tx_msg, *temp; + bool msg_found = false; + unsigned long flags; + + spin_lock_irqsave(&ipmi->tx_msg_lock, flags); + list_for_each_entry_safe(tx_msg, temp, &ipmi->tx_msg_list, head) { + if (msg == tx_msg) { + msg_found = true; + list_del(&tx_msg->head); break; - schedule_timeout(1); + } } - if (!list_empty(&ipmi->tx_msg_list)) - dev_warn(&pnp_dev->dev, "tx msg list is not NULL\n"); + spin_unlock_irqrestore(&ipmi->tx_msg_lock, flags); + + if (msg_found) + acpi_ipmi_msg_put(tx_msg); } static void ipmi_msg_handler(struct ipmi_recv_msg *msg, void *user_msg_data) { struct acpi_ipmi_device *ipmi_device = user_msg_data; - int msg_found = 0; - struct acpi_ipmi_msg *tx_msg; - struct pnp_dev *pnp_dev = ipmi_device->pnp_dev; + bool msg_found = false; + struct acpi_ipmi_msg *tx_msg, *temp; + struct device *dev = ipmi_device->dev; + unsigned long flags; if (msg->user != ipmi_device->user_interface) { - dev_warn(&pnp_dev->dev, "Unexpected response is returned. " - "returned user %p, expected user %p\n", - msg->user, ipmi_device->user_interface); - ipmi_free_recv_msg(msg); - return; + dev_warn(dev, + "Unexpected response is returned. returned user %p, expected user %p\n", + msg->user, ipmi_device->user_interface); + goto out_msg; } - mutex_lock(&ipmi_device->tx_msg_lock); - list_for_each_entry(tx_msg, &ipmi_device->tx_msg_list, head) { + + spin_lock_irqsave(&ipmi_device->tx_msg_lock, flags); + list_for_each_entry_safe(tx_msg, temp, &ipmi_device->tx_msg_list, head) { if (msg->msgid == tx_msg->tx_msgid) { - msg_found = 1; + msg_found = true; + list_del(&tx_msg->head); break; } } + spin_unlock_irqrestore(&ipmi_device->tx_msg_lock, flags); - mutex_unlock(&ipmi_device->tx_msg_lock); if (!msg_found) { - dev_warn(&pnp_dev->dev, "Unexpected response (msg id %ld) is " - "returned.\n", msg->msgid); - ipmi_free_recv_msg(msg); - return; + dev_warn(dev, + "Unexpected response (msg id %ld) is returned.\n", + msg->msgid); + goto out_msg; + } + + /* copy the response data to Rx_data buffer */ + if (msg->msg.data_len > ACPI_IPMI_MAX_MSG_LENGTH) { + dev_WARN_ONCE(dev, true, + "Unexpected response (msg len %d).\n", + msg->msg.data_len); + goto out_comp; } - if (msg->msg.data_len) { - /* copy the response data to Rx_data buffer */ - memcpy(tx_msg->rx_data, msg->msg_data, msg->msg.data_len); - tx_msg->rx_len = msg->msg.data_len; - tx_msg->msg_done = 1; + /* response msg is an error msg */ + msg->recv_type = IPMI_RESPONSE_RECV_TYPE; + if (msg->recv_type == IPMI_RESPONSE_RECV_TYPE && + msg->msg.data_len == 1) { + if (msg->msg.data[0] == IPMI_TIMEOUT_COMPLETION_CODE) { + dev_WARN_ONCE(dev, true, + "Unexpected response (timeout).\n"); + tx_msg->msg_done = ACPI_IPMI_TIMEOUT; + } + goto out_comp; } + + tx_msg->rx_len = msg->msg.data_len; + memcpy(tx_msg->data, msg->msg.data, tx_msg->rx_len); + tx_msg->msg_done = ACPI_IPMI_OK; + +out_comp: complete(&tx_msg->tx_complete); + acpi_ipmi_msg_put(tx_msg); +out_msg: ipmi_free_recv_msg(msg); -}; +} static void ipmi_register_bmc(int iface, struct device *dev) { struct acpi_ipmi_device *ipmi_device, *temp; - struct pnp_dev *pnp_dev; - ipmi_user_t user; int err; struct ipmi_smi_info smi_data; acpi_handle handle; err = ipmi_get_smi_info(iface, &smi_data); - if (err) return; - if (smi_data.addr_src != SI_ACPI) { - put_device(smi_data.dev); - return; - } - + if (smi_data.addr_src != SI_ACPI) + goto err_ref; handle = smi_data.addr_info.acpi_info.acpi_handle; + if (!handle) + goto err_ref; + + ipmi_device = ipmi_dev_alloc(iface, smi_data.dev, handle); + if (!ipmi_device) { + dev_warn(smi_data.dev, "Can't create IPMI user interface\n"); + goto err_ref; + } mutex_lock(&driver_data.ipmi_lock); list_for_each_entry(temp, &driver_data.ipmi_devices, head) { @@ -304,34 +481,20 @@ static void ipmi_register_bmc(int iface, struct device *dev) * to the device list, don't add it again. */ if (temp->handle == handle) - goto out; - } - - ipmi_device = kzalloc(sizeof(*ipmi_device), GFP_KERNEL); - - if (!ipmi_device) - goto out; - - pnp_dev = to_pnp_dev(smi_data.dev); - ipmi_device->handle = handle; - ipmi_device->pnp_dev = pnp_dev; - - err = ipmi_create_user(iface, &driver_data.ipmi_hndlrs, - ipmi_device, &user); - if (err) { - dev_warn(&pnp_dev->dev, "Can't create IPMI user interface\n"); - kfree(ipmi_device); - goto out; + goto err_lock; } - acpi_add_ipmi_device(ipmi_device); - ipmi_device->user_interface = user; - ipmi_device->ipmi_ifnum = iface; + if (!driver_data.selected_smi) + driver_data.selected_smi = ipmi_device; + list_add_tail(&ipmi_device->head, &driver_data.ipmi_devices); mutex_unlock(&driver_data.ipmi_lock); - memcpy(&ipmi_device->smi_data, &smi_data, sizeof(struct ipmi_smi_info)); + + put_device(smi_data.dev); return; -out: +err_lock: mutex_unlock(&driver_data.ipmi_lock); + ipmi_dev_release(ipmi_device); +err_ref: put_device(smi_data.dev); return; } @@ -339,23 +502,29 @@ out: static void ipmi_bmc_gone(int iface) { struct acpi_ipmi_device *ipmi_device, *temp; + bool dev_found = false; mutex_lock(&driver_data.ipmi_lock); list_for_each_entry_safe(ipmi_device, temp, - &driver_data.ipmi_devices, head) { - if (ipmi_device->ipmi_ifnum != iface) - continue; - - acpi_remove_ipmi_device(ipmi_device); - put_device(ipmi_device->smi_data.dev); - kfree(ipmi_device); - break; + &driver_data.ipmi_devices, head) { + if (ipmi_device->ipmi_ifnum != iface) { + dev_found = true; + __ipmi_dev_kill(ipmi_device); + break; + } } + if (!driver_data.selected_smi) + driver_data.selected_smi = list_first_entry_or_null( + &driver_data.ipmi_devices, + struct acpi_ipmi_device, head); mutex_unlock(&driver_data.ipmi_lock); + + if (dev_found) { + ipmi_flush_tx_msg(ipmi_device); + acpi_ipmi_dev_put(ipmi_device); + } } -/* -------------------------------------------------------------------------- - * Address Space Management - * -------------------------------------------------------------------------- */ + /* * This is the IPMI opregion space handler. * @function: indicates the read/write. In fact as the IPMI message is driven @@ -368,16 +537,17 @@ static void ipmi_bmc_gone(int iface) * the response IPMI message returned by IPMI command. * @handler_context: IPMI device context. */ - static acpi_status acpi_ipmi_space_handler(u32 function, acpi_physical_address address, - u32 bits, acpi_integer *value, - void *handler_context, void *region_context) + u32 bits, acpi_integer *value, + void *handler_context, void *region_context) { struct acpi_ipmi_msg *tx_msg; - struct acpi_ipmi_device *ipmi_device = handler_context; - int err, rem_time; + struct acpi_ipmi_device *ipmi_device; + int err; acpi_status status; + unsigned long flags; + /* * IPMI opregion message. * IPMI message is firstly written to the BMC and system software @@ -387,118 +557,75 @@ acpi_ipmi_space_handler(u32 function, acpi_physical_address address, if ((function & ACPI_IO_MASK) == ACPI_READ) return AE_TYPE; - if (!ipmi_device->user_interface) + tx_msg = ipmi_msg_alloc(); + if (!tx_msg) return AE_NOT_EXIST; + ipmi_device = tx_msg->device; - tx_msg = acpi_alloc_ipmi_msg(ipmi_device); - if (!tx_msg) - return AE_NO_MEMORY; + if (acpi_format_ipmi_request(tx_msg, address, value) != 0) { + ipmi_msg_release(tx_msg); + return AE_TYPE; + } - acpi_format_ipmi_msg(tx_msg, address, value); - mutex_lock(&ipmi_device->tx_msg_lock); + acpi_ipmi_msg_get(tx_msg); + mutex_lock(&driver_data.ipmi_lock); + /* Do not add a tx_msg that can not be flushed. */ + if (ipmi_device->dead) { + mutex_unlock(&driver_data.ipmi_lock); + ipmi_msg_release(tx_msg); + return AE_NOT_EXIST; + } + spin_lock_irqsave(&ipmi_device->tx_msg_lock, flags); list_add_tail(&tx_msg->head, &ipmi_device->tx_msg_list); - mutex_unlock(&ipmi_device->tx_msg_lock); + spin_unlock_irqrestore(&ipmi_device->tx_msg_lock, flags); + mutex_unlock(&driver_data.ipmi_lock); + err = ipmi_request_settime(ipmi_device->user_interface, - &tx_msg->addr, - tx_msg->tx_msgid, - &tx_msg->tx_message, - NULL, 0, 0, 0); + &tx_msg->addr, + tx_msg->tx_msgid, + &tx_msg->tx_message, + NULL, 0, 0, IPMI_TIMEOUT); if (err) { status = AE_ERROR; - goto end_label; + goto out_msg; } - rem_time = wait_for_completion_timeout(&tx_msg->tx_complete, - IPMI_TIMEOUT); - acpi_format_ipmi_response(tx_msg, value, rem_time); + wait_for_completion(&tx_msg->tx_complete); + + acpi_format_ipmi_response(tx_msg, value); status = AE_OK; -end_label: - mutex_lock(&ipmi_device->tx_msg_lock); - list_del(&tx_msg->head); - mutex_unlock(&ipmi_device->tx_msg_lock); - kfree(tx_msg); +out_msg: + ipmi_cancel_tx_msg(ipmi_device, tx_msg); + acpi_ipmi_msg_put(tx_msg); return status; } -static void ipmi_remove_space_handler(struct acpi_ipmi_device *ipmi) -{ - if (!test_bit(IPMI_FLAGS_HANDLER_INSTALL, &ipmi->flags)) - return; - - acpi_remove_address_space_handler(ipmi->handle, - ACPI_ADR_SPACE_IPMI, &acpi_ipmi_space_handler); - - clear_bit(IPMI_FLAGS_HANDLER_INSTALL, &ipmi->flags); -} - -static int ipmi_install_space_handler(struct acpi_ipmi_device *ipmi) +static int __init acpi_ipmi_init(void) { + int result; acpi_status status; - if (test_bit(IPMI_FLAGS_HANDLER_INSTALL, &ipmi->flags)) + if (acpi_disabled) return 0; - status = acpi_install_address_space_handler(ipmi->handle, + status = acpi_install_address_space_handler(ACPI_ROOT_OBJECT, ACPI_ADR_SPACE_IPMI, &acpi_ipmi_space_handler, - NULL, ipmi); + NULL, NULL); if (ACPI_FAILURE(status)) { - struct pnp_dev *pnp_dev = ipmi->pnp_dev; - dev_warn(&pnp_dev->dev, "Can't register IPMI opregion space " - "handle\n"); + pr_warn("Can't register IPMI opregion space handle\n"); return -EINVAL; } - set_bit(IPMI_FLAGS_HANDLER_INSTALL, &ipmi->flags); - return 0; -} - -static void acpi_add_ipmi_device(struct acpi_ipmi_device *ipmi_device) -{ - - INIT_LIST_HEAD(&ipmi_device->head); - - mutex_init(&ipmi_device->tx_msg_lock); - INIT_LIST_HEAD(&ipmi_device->tx_msg_list); - ipmi_install_space_handler(ipmi_device); - - list_add_tail(&ipmi_device->head, &driver_data.ipmi_devices); -} - -static void acpi_remove_ipmi_device(struct acpi_ipmi_device *ipmi_device) -{ - /* - * If the IPMI user interface is created, it should be - * destroyed. - */ - if (ipmi_device->user_interface) { - ipmi_destroy_user(ipmi_device->user_interface); - ipmi_device->user_interface = NULL; - } - /* flush the Tx_msg list */ - if (!list_empty(&ipmi_device->tx_msg_list)) - ipmi_flush_tx_msg(ipmi_device); - - list_del(&ipmi_device->head); - ipmi_remove_space_handler(ipmi_device); -} - -static int __init acpi_ipmi_init(void) -{ - int result = 0; - - if (acpi_disabled) - return result; - - mutex_init(&driver_data.ipmi_lock); - result = ipmi_smi_watcher_register(&driver_data.bmc_events); + if (result) + pr_err("Can't register IPMI system interface watcher\n"); return result; } static void __exit acpi_ipmi_exit(void) { - struct acpi_ipmi_device *ipmi_device, *temp; + struct acpi_ipmi_device *ipmi_device; if (acpi_disabled) return; @@ -512,13 +639,22 @@ static void __exit acpi_ipmi_exit(void) * handler and free it. */ mutex_lock(&driver_data.ipmi_lock); - list_for_each_entry_safe(ipmi_device, temp, - &driver_data.ipmi_devices, head) { - acpi_remove_ipmi_device(ipmi_device); - put_device(ipmi_device->smi_data.dev); - kfree(ipmi_device); + while (!list_empty(&driver_data.ipmi_devices)) { + ipmi_device = list_first_entry(&driver_data.ipmi_devices, + struct acpi_ipmi_device, + head); + __ipmi_dev_kill(ipmi_device); + mutex_unlock(&driver_data.ipmi_lock); + + ipmi_flush_tx_msg(ipmi_device); + acpi_ipmi_dev_put(ipmi_device); + + mutex_lock(&driver_data.ipmi_lock); } mutex_unlock(&driver_data.ipmi_lock); + acpi_remove_address_space_handler(ACPI_ROOT_OBJECT, + ACPI_ADR_SPACE_IPMI, + &acpi_ipmi_space_handler); } module_init(acpi_ipmi_init); diff --git a/drivers/acpi/acpi_lpss.c b/drivers/acpi/acpi_lpss.c index fb78bb9ad8f6..6745fe137b9e 100644 --- a/drivers/acpi/acpi_lpss.c +++ b/drivers/acpi/acpi_lpss.c @@ -30,6 +30,7 @@ ACPI_MODULE_NAME("acpi_lpss"); /* Offsets relative to LPSS_PRIVATE_OFFSET */ #define LPSS_GENERAL 0x08 #define LPSS_GENERAL_LTR_MODE_SW BIT(2) +#define LPSS_GENERAL_UART_RTS_OVRD BIT(3) #define LPSS_SW_LTR 0x10 #define LPSS_AUTO_LTR 0x14 #define LPSS_TX_INT 0x20 @@ -68,11 +69,16 @@ struct lpss_private_data { static void lpss_uart_setup(struct lpss_private_data *pdata) { - unsigned int tx_int_offset = pdata->dev_desc->prv_offset + LPSS_TX_INT; + unsigned int offset; u32 reg; - reg = readl(pdata->mmio_base + tx_int_offset); - writel(reg | LPSS_TX_INT_MASK, pdata->mmio_base + tx_int_offset); + offset = pdata->dev_desc->prv_offset + LPSS_TX_INT; + reg = readl(pdata->mmio_base + offset); + writel(reg | LPSS_TX_INT_MASK, pdata->mmio_base + offset); + + offset = pdata->dev_desc->prv_offset + LPSS_GENERAL; + reg = readl(pdata->mmio_base + offset); + writel(reg | LPSS_GENERAL_UART_RTS_OVRD, pdata->mmio_base + offset); } static struct lpss_device_desc lpt_dev_desc = { @@ -157,6 +163,15 @@ static const struct acpi_device_id acpi_lpss_device_ids[] = { { "80860F41", (unsigned long)&byt_i2c_dev_desc }, { "INT33B2", }, + { "INT3430", (unsigned long)&lpt_dev_desc }, + { "INT3431", (unsigned long)&lpt_dev_desc }, + { "INT3432", (unsigned long)&lpt_dev_desc }, + { "INT3433", (unsigned long)&lpt_dev_desc }, + { "INT3434", (unsigned long)&lpt_uart_dev_desc }, + { "INT3435", (unsigned long)&lpt_uart_dev_desc }, + { "INT3436", (unsigned long)&lpt_sdio_dev_desc }, + { "INT3437", }, + { } }; diff --git a/drivers/acpi/acpi_memhotplug.c b/drivers/acpi/acpi_memhotplug.c index 999adb5499c7..551dad712ffe 100644 --- a/drivers/acpi/acpi_memhotplug.c +++ b/drivers/acpi/acpi_memhotplug.c @@ -152,8 +152,9 @@ static int acpi_memory_check_device(struct acpi_memory_device *mem_device) unsigned long long current_status; /* Get device present/absent information from the _STA */ - if (ACPI_FAILURE(acpi_evaluate_integer(mem_device->device->handle, "_STA", - NULL, ¤t_status))) + if (ACPI_FAILURE(acpi_evaluate_integer(mem_device->device->handle, + METHOD_NAME__STA, NULL, + ¤t_status))) return -ENODEV; /* * Check for device status. Device should be @@ -281,7 +282,7 @@ static void acpi_memory_remove_memory(struct acpi_memory_device *mem_device) if (!info->enabled) continue; - if (nid < 0) + if (nid == NUMA_NO_NODE) nid = memory_add_physaddr_to_nid(info->start_addr); acpi_unbind_memory_blocks(info, handle); diff --git a/drivers/acpi/acpi_platform.c b/drivers/acpi/acpi_platform.c index 1bde12708f9e..dbfe49e5fd63 100644 --- a/drivers/acpi/acpi_platform.c +++ b/drivers/acpi/acpi_platform.c @@ -29,6 +29,13 @@ ACPI_MODULE_NAME("platform"); static const struct acpi_device_id acpi_platform_device_ids[] = { { "PNP0D40" }, + { "ACPI0003" }, + { "VPC2004" }, + { "BCM4752" }, + + /* Intel Smart Sound Technology */ + { "INT33C8" }, + { "80860F28" }, { } }; @@ -104,7 +111,7 @@ int acpi_create_platform_device(struct acpi_device *adev, pdevinfo.id = -1; pdevinfo.res = resources; pdevinfo.num_res = count; - pdevinfo.acpi_node.handle = adev->handle; + pdevinfo.acpi_node.companion = adev; pdev = platform_device_register_full(&pdevinfo); if (IS_ERR(pdev)) { dev_err(&adev->dev, "platform device creation failed: %ld\n", diff --git a/drivers/acpi/acpi_processor.c b/drivers/acpi/acpi_processor.c index f29e06efa479..3c1d6b0c09a4 100644 --- a/drivers/acpi/acpi_processor.c +++ b/drivers/acpi/acpi_processor.c @@ -140,15 +140,11 @@ static int acpi_processor_errata_piix4(struct pci_dev *dev) return 0; } -static int acpi_processor_errata(struct acpi_processor *pr) +static int acpi_processor_errata(void) { int result = 0; struct pci_dev *dev = NULL; - - if (!pr) - return -EINVAL; - /* * PIIX4 */ @@ -181,7 +177,7 @@ static int acpi_processor_hotadd_init(struct acpi_processor *pr) cpu_maps_update_begin(); cpu_hotplug_begin(); - ret = acpi_map_lsapic(pr->handle, &pr->id); + ret = acpi_map_lsapic(pr->handle, pr->apic_id, &pr->id); if (ret) goto out; @@ -219,11 +215,9 @@ static int acpi_processor_get_info(struct acpi_device *device) int cpu_index, device_declaration = 0; acpi_status status = AE_OK; static int cpu0_initialized; + unsigned long long value; - if (num_online_cpus() > 1) - errata.smp = TRUE; - - acpi_processor_errata(pr); + acpi_processor_errata(); /* * Check to see if we have bus mastering arbitration control. This @@ -247,18 +241,12 @@ static int acpi_processor_get_info(struct acpi_device *device) return -ENODEV; } - /* - * TBD: Synch processor ID (via LAPIC/LSAPIC structures) on SMP. - * >>> 'acpi_get_processor_id(acpi_id, &id)' in - * arch/xxx/acpi.c - */ pr->acpi_id = object.processor.proc_id; } else { /* * Declared with "Device" statement; match _UID. * Note that we don't handle string _UIDs yet. */ - unsigned long long value; status = acpi_evaluate_integer(pr->handle, METHOD_NAME__UID, NULL, &value); if (ACPI_FAILURE(status)) { @@ -270,7 +258,9 @@ static int acpi_processor_get_info(struct acpi_device *device) device_declaration = 1; pr->acpi_id = value; } - cpu_index = acpi_get_cpuid(pr->handle, device_declaration, pr->acpi_id); + 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) && @@ -332,9 +322,9 @@ static int acpi_processor_get_info(struct acpi_device *device) * ensure we get the right value in the "physical id" field * of /proc/cpuinfo */ - status = acpi_evaluate_object(pr->handle, "_SUN", NULL, &buffer); + status = acpi_evaluate_integer(pr->handle, "_SUN", NULL, &value); if (ACPI_SUCCESS(status)) - arch_fix_phys_package_id(pr->id, object.integer.value); + arch_fix_phys_package_id(pr->id, value); return 0; } diff --git a/drivers/acpi/acpica/utobject.c b/drivers/acpi/acpica/utobject.c index 13e045025c33..517af700399d 100644 --- a/drivers/acpi/acpica/utobject.c +++ b/drivers/acpi/acpica/utobject.c @@ -356,7 +356,7 @@ u8 acpi_ut_valid_internal_object(void *object) default: ACPI_DEBUG_PRINT((ACPI_DB_EXEC, - "%p is not not an ACPI operand obj [%s]\n", + "%p is not an ACPI operand obj [%s]\n", object, acpi_ut_get_descriptor_name(object))); break; } diff --git a/drivers/acpi/apei/Kconfig b/drivers/acpi/apei/Kconfig index f0c1ce95a0ec..786294bb682c 100644 --- a/drivers/acpi/apei/Kconfig +++ b/drivers/acpi/apei/Kconfig @@ -2,6 +2,8 @@ config ACPI_APEI bool "ACPI Platform Error Interface (APEI)" select MISC_FILESYSTEMS select PSTORE + select EFI + select UEFI_CPER depends on X86 help APEI allows to report errors (for example from the chipset) diff --git a/drivers/acpi/apei/Makefile b/drivers/acpi/apei/Makefile index d1d1bc0a4ee1..5d575a955940 100644 --- a/drivers/acpi/apei/Makefile +++ b/drivers/acpi/apei/Makefile @@ -3,4 +3,4 @@ obj-$(CONFIG_ACPI_APEI_GHES) += ghes.o obj-$(CONFIG_ACPI_APEI_EINJ) += einj.o obj-$(CONFIG_ACPI_APEI_ERST_DEBUG) += erst-dbg.o -apei-y := apei-base.o hest.o cper.o erst.o +apei-y := apei-base.o hest.o erst.o diff --git a/drivers/acpi/apei/apei-base.c b/drivers/acpi/apei/apei-base.c index 46f80e2c92f7..6d2c49b86b7f 100644 --- a/drivers/acpi/apei/apei-base.c +++ b/drivers/acpi/apei/apei-base.c @@ -758,9 +758,9 @@ int apei_osc_setup(void) .cap.pointer = capbuf, }; - capbuf[OSC_QUERY_TYPE] = OSC_QUERY_ENABLE; - capbuf[OSC_SUPPORT_TYPE] = 1; - capbuf[OSC_CONTROL_TYPE] = 0; + capbuf[OSC_QUERY_DWORD] = OSC_QUERY_ENABLE; + capbuf[OSC_SUPPORT_DWORD] = 1; + capbuf[OSC_CONTROL_DWORD] = 0; if (ACPI_FAILURE(acpi_get_handle(NULL, "\\_SB", &handle)) || ACPI_FAILURE(acpi_run_osc(handle, &context))) diff --git a/drivers/acpi/apei/apei-internal.h b/drivers/acpi/apei/apei-internal.h index f220d642136e..21ba34a73883 100644 --- a/drivers/acpi/apei/apei-internal.h +++ b/drivers/acpi/apei/apei-internal.h @@ -122,11 +122,11 @@ struct dentry; struct dentry *apei_get_debugfs_dir(void); #define apei_estatus_for_each_section(estatus, section) \ - for (section = (struct acpi_hest_generic_data *)(estatus + 1); \ + for (section = (struct acpi_generic_data *)(estatus + 1); \ (void *)section - (void *)estatus < estatus->data_length; \ section = (void *)(section+1) + section->error_data_length) -static inline u32 apei_estatus_len(struct acpi_hest_generic_status *estatus) +static inline u32 cper_estatus_len(struct acpi_generic_status *estatus) { if (estatus->raw_data_length) return estatus->raw_data_offset + \ @@ -135,10 +135,10 @@ static inline u32 apei_estatus_len(struct acpi_hest_generic_status *estatus) return sizeof(*estatus) + estatus->data_length; } -void apei_estatus_print(const char *pfx, - const struct acpi_hest_generic_status *estatus); -int apei_estatus_check_header(const struct acpi_hest_generic_status *estatus); -int apei_estatus_check(const struct acpi_hest_generic_status *estatus); +void cper_estatus_print(const char *pfx, + const struct acpi_generic_status *estatus); +int cper_estatus_check_header(const struct acpi_generic_status *estatus); +int cper_estatus_check(const struct acpi_generic_status *estatus); int apei_osc_setup(void); #endif diff --git a/drivers/acpi/apei/cper.c b/drivers/acpi/apei/cper.c deleted file mode 100644 index 33dc6a004802..000000000000 --- a/drivers/acpi/apei/cper.c +++ /dev/null @@ -1,402 +0,0 @@ -/* - * UEFI Common Platform Error Record (CPER) support - * - * Copyright (C) 2010, Intel Corp. - * Author: Huang Ying <ying.huang@intel.com> - * - * CPER is the format used to describe platform hardware error by - * various APEI tables, such as ERST, BERT and HEST etc. - * - * For more information about CPER, please refer to Appendix N of UEFI - * Specification version 2.3. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License version - * 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/time.h> -#include <linux/cper.h> -#include <linux/acpi.h> -#include <linux/pci.h> -#include <linux/aer.h> - -/* - * CPER record ID need to be unique even after reboot, because record - * ID is used as index for ERST storage, while CPER records from - * multiple boot may co-exist in ERST. - */ -u64 cper_next_record_id(void) -{ - static atomic64_t seq; - - if (!atomic64_read(&seq)) - atomic64_set(&seq, ((u64)get_seconds()) << 32); - - return atomic64_inc_return(&seq); -} -EXPORT_SYMBOL_GPL(cper_next_record_id); - -static const char *cper_severity_strs[] = { - "recoverable", - "fatal", - "corrected", - "info", -}; - -static const char *cper_severity_str(unsigned int severity) -{ - return severity < ARRAY_SIZE(cper_severity_strs) ? - cper_severity_strs[severity] : "unknown"; -} - -/* - * cper_print_bits - print strings for set bits - * @pfx: prefix for each line, including log level and prefix string - * @bits: bit mask - * @strs: string array, indexed by bit position - * @strs_size: size of the string array: @strs - * - * For each set bit in @bits, print the corresponding string in @strs. - * If the output length is longer than 80, multiple line will be - * printed, with @pfx is printed at the beginning of each line. - */ -void cper_print_bits(const char *pfx, unsigned int bits, - const char *strs[], unsigned int strs_size) -{ - int i, len = 0; - const char *str; - char buf[84]; - - for (i = 0; i < strs_size; i++) { - if (!(bits & (1U << i))) - continue; - str = strs[i]; - if (!str) - continue; - if (len && len + strlen(str) + 2 > 80) { - printk("%s\n", buf); - len = 0; - } - if (!len) - len = snprintf(buf, sizeof(buf), "%s%s", pfx, str); - else - len += snprintf(buf+len, sizeof(buf)-len, ", %s", str); - } - if (len) - printk("%s\n", buf); -} - -static const char *cper_proc_type_strs[] = { - "IA32/X64", - "IA64", -}; - -static const char *cper_proc_isa_strs[] = { - "IA32", - "IA64", - "X64", -}; - -static const char *cper_proc_error_type_strs[] = { - "cache error", - "TLB error", - "bus error", - "micro-architectural error", -}; - -static const char *cper_proc_op_strs[] = { - "unknown or generic", - "data read", - "data write", - "instruction execution", -}; - -static const char *cper_proc_flag_strs[] = { - "restartable", - "precise IP", - "overflow", - "corrected", -}; - -static void cper_print_proc_generic(const char *pfx, - const struct cper_sec_proc_generic *proc) -{ - if (proc->validation_bits & CPER_PROC_VALID_TYPE) - printk("%s""processor_type: %d, %s\n", pfx, proc->proc_type, - proc->proc_type < ARRAY_SIZE(cper_proc_type_strs) ? - cper_proc_type_strs[proc->proc_type] : "unknown"); - if (proc->validation_bits & CPER_PROC_VALID_ISA) - printk("%s""processor_isa: %d, %s\n", pfx, proc->proc_isa, - proc->proc_isa < ARRAY_SIZE(cper_proc_isa_strs) ? - cper_proc_isa_strs[proc->proc_isa] : "unknown"); - if (proc->validation_bits & CPER_PROC_VALID_ERROR_TYPE) { - printk("%s""error_type: 0x%02x\n", pfx, proc->proc_error_type); - cper_print_bits(pfx, proc->proc_error_type, - cper_proc_error_type_strs, - ARRAY_SIZE(cper_proc_error_type_strs)); - } - if (proc->validation_bits & CPER_PROC_VALID_OPERATION) - printk("%s""operation: %d, %s\n", pfx, proc->operation, - proc->operation < ARRAY_SIZE(cper_proc_op_strs) ? - cper_proc_op_strs[proc->operation] : "unknown"); - if (proc->validation_bits & CPER_PROC_VALID_FLAGS) { - printk("%s""flags: 0x%02x\n", pfx, proc->flags); - cper_print_bits(pfx, proc->flags, cper_proc_flag_strs, - ARRAY_SIZE(cper_proc_flag_strs)); - } - if (proc->validation_bits & CPER_PROC_VALID_LEVEL) - printk("%s""level: %d\n", pfx, proc->level); - if (proc->validation_bits & CPER_PROC_VALID_VERSION) - printk("%s""version_info: 0x%016llx\n", pfx, proc->cpu_version); - if (proc->validation_bits & CPER_PROC_VALID_ID) - printk("%s""processor_id: 0x%016llx\n", pfx, proc->proc_id); - if (proc->validation_bits & CPER_PROC_VALID_TARGET_ADDRESS) - printk("%s""target_address: 0x%016llx\n", - pfx, proc->target_addr); - if (proc->validation_bits & CPER_PROC_VALID_REQUESTOR_ID) - printk("%s""requestor_id: 0x%016llx\n", - pfx, proc->requestor_id); - if (proc->validation_bits & CPER_PROC_VALID_RESPONDER_ID) - printk("%s""responder_id: 0x%016llx\n", - pfx, proc->responder_id); - if (proc->validation_bits & CPER_PROC_VALID_IP) - printk("%s""IP: 0x%016llx\n", pfx, proc->ip); -} - -static const char *cper_mem_err_type_strs[] = { - "unknown", - "no error", - "single-bit ECC", - "multi-bit ECC", - "single-symbol chipkill ECC", - "multi-symbol chipkill ECC", - "master abort", - "target abort", - "parity error", - "watchdog timeout", - "invalid address", - "mirror Broken", - "memory sparing", - "scrub corrected error", - "scrub uncorrected error", -}; - -static void cper_print_mem(const char *pfx, const struct cper_sec_mem_err *mem) -{ - if (mem->validation_bits & CPER_MEM_VALID_ERROR_STATUS) - printk("%s""error_status: 0x%016llx\n", pfx, mem->error_status); - if (mem->validation_bits & CPER_MEM_VALID_PHYSICAL_ADDRESS) - printk("%s""physical_address: 0x%016llx\n", - pfx, mem->physical_addr); - if (mem->validation_bits & CPER_MEM_VALID_PHYSICAL_ADDRESS_MASK) - printk("%s""physical_address_mask: 0x%016llx\n", - pfx, mem->physical_addr_mask); - if (mem->validation_bits & CPER_MEM_VALID_NODE) - printk("%s""node: %d\n", pfx, mem->node); - if (mem->validation_bits & CPER_MEM_VALID_CARD) - printk("%s""card: %d\n", pfx, mem->card); - if (mem->validation_bits & CPER_MEM_VALID_MODULE) - printk("%s""module: %d\n", pfx, mem->module); - if (mem->validation_bits & CPER_MEM_VALID_BANK) - printk("%s""bank: %d\n", pfx, mem->bank); - if (mem->validation_bits & CPER_MEM_VALID_DEVICE) - printk("%s""device: %d\n", pfx, mem->device); - if (mem->validation_bits & CPER_MEM_VALID_ROW) - printk("%s""row: %d\n", pfx, mem->row); - if (mem->validation_bits & CPER_MEM_VALID_COLUMN) - printk("%s""column: %d\n", pfx, mem->column); - if (mem->validation_bits & CPER_MEM_VALID_BIT_POSITION) - printk("%s""bit_position: %d\n", pfx, mem->bit_pos); - if (mem->validation_bits & CPER_MEM_VALID_REQUESTOR_ID) - printk("%s""requestor_id: 0x%016llx\n", pfx, mem->requestor_id); - if (mem->validation_bits & CPER_MEM_VALID_RESPONDER_ID) - printk("%s""responder_id: 0x%016llx\n", pfx, mem->responder_id); - if (mem->validation_bits & CPER_MEM_VALID_TARGET_ID) - printk("%s""target_id: 0x%016llx\n", pfx, mem->target_id); - if (mem->validation_bits & CPER_MEM_VALID_ERROR_TYPE) { - u8 etype = mem->error_type; - printk("%s""error_type: %d, %s\n", pfx, etype, - etype < ARRAY_SIZE(cper_mem_err_type_strs) ? - cper_mem_err_type_strs[etype] : "unknown"); - } -} - -static const char *cper_pcie_port_type_strs[] = { - "PCIe end point", - "legacy PCI end point", - "unknown", - "unknown", - "root port", - "upstream switch port", - "downstream switch port", - "PCIe to PCI/PCI-X bridge", - "PCI/PCI-X to PCIe bridge", - "root complex integrated endpoint device", - "root complex event collector", -}; - -static void cper_print_pcie(const char *pfx, const struct cper_sec_pcie *pcie, - const struct acpi_hest_generic_data *gdata) -{ - if (pcie->validation_bits & CPER_PCIE_VALID_PORT_TYPE) - printk("%s""port_type: %d, %s\n", pfx, pcie->port_type, - pcie->port_type < ARRAY_SIZE(cper_pcie_port_type_strs) ? - cper_pcie_port_type_strs[pcie->port_type] : "unknown"); - if (pcie->validation_bits & CPER_PCIE_VALID_VERSION) - printk("%s""version: %d.%d\n", pfx, - pcie->version.major, pcie->version.minor); - if (pcie->validation_bits & CPER_PCIE_VALID_COMMAND_STATUS) - printk("%s""command: 0x%04x, status: 0x%04x\n", pfx, - pcie->command, pcie->status); - if (pcie->validation_bits & CPER_PCIE_VALID_DEVICE_ID) { - const __u8 *p; - printk("%s""device_id: %04x:%02x:%02x.%x\n", pfx, - pcie->device_id.segment, pcie->device_id.bus, - pcie->device_id.device, pcie->device_id.function); - printk("%s""slot: %d\n", pfx, - pcie->device_id.slot >> CPER_PCIE_SLOT_SHIFT); - printk("%s""secondary_bus: 0x%02x\n", pfx, - pcie->device_id.secondary_bus); - printk("%s""vendor_id: 0x%04x, device_id: 0x%04x\n", pfx, - pcie->device_id.vendor_id, pcie->device_id.device_id); - p = pcie->device_id.class_code; - printk("%s""class_code: %02x%02x%02x\n", pfx, p[0], p[1], p[2]); - } - if (pcie->validation_bits & CPER_PCIE_VALID_SERIAL_NUMBER) - printk("%s""serial number: 0x%04x, 0x%04x\n", pfx, - pcie->serial_number.lower, pcie->serial_number.upper); - if (pcie->validation_bits & CPER_PCIE_VALID_BRIDGE_CONTROL_STATUS) - printk( - "%s""bridge: secondary_status: 0x%04x, control: 0x%04x\n", - pfx, pcie->bridge.secondary_status, pcie->bridge.control); -} - -static const char *apei_estatus_section_flag_strs[] = { - "primary", - "containment warning", - "reset", - "threshold exceeded", - "resource not accessible", - "latent error", -}; - -static void apei_estatus_print_section( - const char *pfx, const struct acpi_hest_generic_data *gdata, int sec_no) -{ - uuid_le *sec_type = (uuid_le *)gdata->section_type; - __u16 severity; - - severity = gdata->error_severity; - printk("%s""section: %d, severity: %d, %s\n", pfx, sec_no, severity, - cper_severity_str(severity)); - printk("%s""flags: 0x%02x\n", pfx, gdata->flags); - cper_print_bits(pfx, gdata->flags, apei_estatus_section_flag_strs, - ARRAY_SIZE(apei_estatus_section_flag_strs)); - if (gdata->validation_bits & CPER_SEC_VALID_FRU_ID) - printk("%s""fru_id: %pUl\n", pfx, (uuid_le *)gdata->fru_id); - if (gdata->validation_bits & CPER_SEC_VALID_FRU_TEXT) - printk("%s""fru_text: %.20s\n", pfx, gdata->fru_text); - - if (!uuid_le_cmp(*sec_type, CPER_SEC_PROC_GENERIC)) { - struct cper_sec_proc_generic *proc_err = (void *)(gdata + 1); - printk("%s""section_type: general processor error\n", pfx); - if (gdata->error_data_length >= sizeof(*proc_err)) - cper_print_proc_generic(pfx, proc_err); - else - goto err_section_too_small; - } else if (!uuid_le_cmp(*sec_type, CPER_SEC_PLATFORM_MEM)) { - struct cper_sec_mem_err *mem_err = (void *)(gdata + 1); - printk("%s""section_type: memory error\n", pfx); - if (gdata->error_data_length >= sizeof(*mem_err)) - cper_print_mem(pfx, mem_err); - else - goto err_section_too_small; - } else if (!uuid_le_cmp(*sec_type, CPER_SEC_PCIE)) { - struct cper_sec_pcie *pcie = (void *)(gdata + 1); - printk("%s""section_type: PCIe error\n", pfx); - if (gdata->error_data_length >= sizeof(*pcie)) - cper_print_pcie(pfx, pcie, gdata); - else - goto err_section_too_small; - } else - printk("%s""section type: unknown, %pUl\n", pfx, sec_type); - - return; - -err_section_too_small: - pr_err(FW_WARN "error section length is too small\n"); -} - -void apei_estatus_print(const char *pfx, - const struct acpi_hest_generic_status *estatus) -{ - struct acpi_hest_generic_data *gdata; - unsigned int data_len, gedata_len; - int sec_no = 0; - __u16 severity; - - printk("%s""APEI generic hardware error status\n", pfx); - severity = estatus->error_severity; - printk("%s""severity: %d, %s\n", pfx, severity, - cper_severity_str(severity)); - data_len = estatus->data_length; - gdata = (struct acpi_hest_generic_data *)(estatus + 1); - while (data_len > sizeof(*gdata)) { - gedata_len = gdata->error_data_length; - apei_estatus_print_section(pfx, gdata, sec_no); - data_len -= gedata_len + sizeof(*gdata); - gdata = (void *)(gdata + 1) + gedata_len; - sec_no++; - } -} -EXPORT_SYMBOL_GPL(apei_estatus_print); - -int apei_estatus_check_header(const struct acpi_hest_generic_status *estatus) -{ - if (estatus->data_length && - estatus->data_length < sizeof(struct acpi_hest_generic_data)) - return -EINVAL; - if (estatus->raw_data_length && - estatus->raw_data_offset < sizeof(*estatus) + estatus->data_length) - return -EINVAL; - - return 0; -} -EXPORT_SYMBOL_GPL(apei_estatus_check_header); - -int apei_estatus_check(const struct acpi_hest_generic_status *estatus) -{ - struct acpi_hest_generic_data *gdata; - unsigned int data_len, gedata_len; - int rc; - - rc = apei_estatus_check_header(estatus); - if (rc) - return rc; - data_len = estatus->data_length; - gdata = (struct acpi_hest_generic_data *)(estatus + 1); - while (data_len >= sizeof(*gdata)) { - gedata_len = gdata->error_data_length; - if (gedata_len > data_len - sizeof(*gdata)) - return -EINVAL; - data_len -= gedata_len + sizeof(*gdata); - gdata = (void *)(gdata + 1) + gedata_len; - } - if (data_len) - return -EINVAL; - - return 0; -} -EXPORT_SYMBOL_GPL(apei_estatus_check); diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c index 8ec37bbdd699..a30bc313787b 100644 --- a/drivers/acpi/apei/ghes.c +++ b/drivers/acpi/apei/ghes.c @@ -75,13 +75,13 @@ #define GHES_ESTATUS_CACHE_LEN(estatus_len) \ (sizeof(struct ghes_estatus_cache) + (estatus_len)) #define GHES_ESTATUS_FROM_CACHE(estatus_cache) \ - ((struct acpi_hest_generic_status *) \ + ((struct acpi_generic_status *) \ ((struct ghes_estatus_cache *)(estatus_cache) + 1)) #define GHES_ESTATUS_NODE_LEN(estatus_len) \ (sizeof(struct ghes_estatus_node) + (estatus_len)) -#define GHES_ESTATUS_FROM_NODE(estatus_node) \ - ((struct acpi_hest_generic_status *) \ +#define GHES_ESTATUS_FROM_NODE(estatus_node) \ + ((struct acpi_generic_status *) \ ((struct ghes_estatus_node *)(estatus_node) + 1)) bool ghes_disable; @@ -378,17 +378,17 @@ static int ghes_read_estatus(struct ghes *ghes, int silent) ghes->flags |= GHES_TO_CLEAR; rc = -EIO; - len = apei_estatus_len(ghes->estatus); + len = cper_estatus_len(ghes->estatus); if (len < sizeof(*ghes->estatus)) goto err_read_block; if (len > ghes->generic->error_block_length) goto err_read_block; - if (apei_estatus_check_header(ghes->estatus)) + if (cper_estatus_check_header(ghes->estatus)) goto err_read_block; ghes_copy_tofrom_phys(ghes->estatus + 1, buf_paddr + sizeof(*ghes->estatus), len - sizeof(*ghes->estatus), 1); - if (apei_estatus_check(ghes->estatus)) + if (cper_estatus_check(ghes->estatus)) goto err_read_block; rc = 0; @@ -409,7 +409,7 @@ static void ghes_clear_estatus(struct ghes *ghes) ghes->flags &= ~GHES_TO_CLEAR; } -static void ghes_handle_memory_failure(struct acpi_hest_generic_data *gdata, int sev) +static void ghes_handle_memory_failure(struct acpi_generic_data *gdata, int sev) { #ifdef CONFIG_ACPI_APEI_MEMORY_FAILURE unsigned long pfn; @@ -419,7 +419,7 @@ static void ghes_handle_memory_failure(struct acpi_hest_generic_data *gdata, int if (sec_sev == GHES_SEV_CORRECTED && (gdata->flags & CPER_SEC_ERROR_THRESHOLD_EXCEEDED) && - (mem_err->validation_bits & CPER_MEM_VALID_PHYSICAL_ADDRESS)) { + (mem_err->validation_bits & CPER_MEM_VALID_PA)) { pfn = mem_err->physical_addr >> PAGE_SHIFT; if (pfn_valid(pfn)) memory_failure_queue(pfn, 0, MF_SOFT_OFFLINE); @@ -430,7 +430,7 @@ static void ghes_handle_memory_failure(struct acpi_hest_generic_data *gdata, int } if (sev == GHES_SEV_RECOVERABLE && sec_sev == GHES_SEV_RECOVERABLE && - mem_err->validation_bits & CPER_MEM_VALID_PHYSICAL_ADDRESS) { + mem_err->validation_bits & CPER_MEM_VALID_PA) { pfn = mem_err->physical_addr >> PAGE_SHIFT; memory_failure_queue(pfn, 0, 0); } @@ -438,10 +438,10 @@ static void ghes_handle_memory_failure(struct acpi_hest_generic_data *gdata, int } static void ghes_do_proc(struct ghes *ghes, - const struct acpi_hest_generic_status *estatus) + const struct acpi_generic_status *estatus) { int sev, sec_sev; - struct acpi_hest_generic_data *gdata; + struct acpi_generic_data *gdata; sev = ghes_severity(estatus->error_severity); apei_estatus_for_each_section(estatus, gdata) { @@ -496,7 +496,7 @@ static void ghes_do_proc(struct ghes *ghes, static void __ghes_print_estatus(const char *pfx, const struct acpi_hest_generic *generic, - const struct acpi_hest_generic_status *estatus) + const struct acpi_generic_status *estatus) { static atomic_t seqno; unsigned int curr_seqno; @@ -513,12 +513,12 @@ static void __ghes_print_estatus(const char *pfx, snprintf(pfx_seq, sizeof(pfx_seq), "%s{%u}" HW_ERR, pfx, curr_seqno); printk("%s""Hardware error from APEI Generic Hardware Error Source: %d\n", pfx_seq, generic->header.source_id); - apei_estatus_print(pfx_seq, estatus); + cper_estatus_print(pfx_seq, estatus); } static int ghes_print_estatus(const char *pfx, const struct acpi_hest_generic *generic, - const struct acpi_hest_generic_status *estatus) + const struct acpi_generic_status *estatus) { /* Not more than 2 messages every 5 seconds */ static DEFINE_RATELIMIT_STATE(ratelimit_corrected, 5*HZ, 2); @@ -540,15 +540,15 @@ static int ghes_print_estatus(const char *pfx, * GHES error status reporting throttle, to report more kinds of * errors, instead of just most frequently occurred errors. */ -static int ghes_estatus_cached(struct acpi_hest_generic_status *estatus) +static int ghes_estatus_cached(struct acpi_generic_status *estatus) { u32 len; int i, cached = 0; unsigned long long now; struct ghes_estatus_cache *cache; - struct acpi_hest_generic_status *cache_estatus; + struct acpi_generic_status *cache_estatus; - len = apei_estatus_len(estatus); + len = cper_estatus_len(estatus); rcu_read_lock(); for (i = 0; i < GHES_ESTATUS_CACHES_SIZE; i++) { cache = rcu_dereference(ghes_estatus_caches[i]); @@ -571,19 +571,19 @@ static int ghes_estatus_cached(struct acpi_hest_generic_status *estatus) static struct ghes_estatus_cache *ghes_estatus_cache_alloc( struct acpi_hest_generic *generic, - struct acpi_hest_generic_status *estatus) + struct acpi_generic_status *estatus) { int alloced; u32 len, cache_len; struct ghes_estatus_cache *cache; - struct acpi_hest_generic_status *cache_estatus; + struct acpi_generic_status *cache_estatus; alloced = atomic_add_return(1, &ghes_estatus_cache_alloced); if (alloced > GHES_ESTATUS_CACHE_ALLOCED_MAX) { atomic_dec(&ghes_estatus_cache_alloced); return NULL; } - len = apei_estatus_len(estatus); + len = cper_estatus_len(estatus); cache_len = GHES_ESTATUS_CACHE_LEN(len); cache = (void *)gen_pool_alloc(ghes_estatus_pool, cache_len); if (!cache) { @@ -603,7 +603,7 @@ static void ghes_estatus_cache_free(struct ghes_estatus_cache *cache) { u32 len; - len = apei_estatus_len(GHES_ESTATUS_FROM_CACHE(cache)); + len = cper_estatus_len(GHES_ESTATUS_FROM_CACHE(cache)); len = GHES_ESTATUS_CACHE_LEN(len); gen_pool_free(ghes_estatus_pool, (unsigned long)cache, len); atomic_dec(&ghes_estatus_cache_alloced); @@ -619,7 +619,7 @@ static void ghes_estatus_cache_rcu_free(struct rcu_head *head) static void ghes_estatus_cache_add( struct acpi_hest_generic *generic, - struct acpi_hest_generic_status *estatus) + struct acpi_generic_status *estatus) { int i, slot = -1, count; unsigned long long now, duration, period, max_period = 0; @@ -751,7 +751,7 @@ static void ghes_proc_in_irq(struct irq_work *irq_work) struct llist_node *llnode, *next; struct ghes_estatus_node *estatus_node; struct acpi_hest_generic *generic; - struct acpi_hest_generic_status *estatus; + struct acpi_generic_status *estatus; u32 len, node_len; llnode = llist_del_all(&ghes_estatus_llist); @@ -765,7 +765,7 @@ static void ghes_proc_in_irq(struct irq_work *irq_work) estatus_node = llist_entry(llnode, struct ghes_estatus_node, llnode); estatus = GHES_ESTATUS_FROM_NODE(estatus_node); - len = apei_estatus_len(estatus); + len = cper_estatus_len(estatus); node_len = GHES_ESTATUS_NODE_LEN(len); ghes_do_proc(estatus_node->ghes, estatus); if (!ghes_estatus_cached(estatus)) { @@ -784,7 +784,7 @@ static void ghes_print_queued_estatus(void) struct llist_node *llnode; struct ghes_estatus_node *estatus_node; struct acpi_hest_generic *generic; - struct acpi_hest_generic_status *estatus; + struct acpi_generic_status *estatus; u32 len, node_len; llnode = llist_del_all(&ghes_estatus_llist); @@ -797,7 +797,7 @@ static void ghes_print_queued_estatus(void) estatus_node = llist_entry(llnode, struct ghes_estatus_node, llnode); estatus = GHES_ESTATUS_FROM_NODE(estatus_node); - len = apei_estatus_len(estatus); + len = cper_estatus_len(estatus); node_len = GHES_ESTATUS_NODE_LEN(len); generic = estatus_node->generic; ghes_print_estatus(NULL, generic, estatus); @@ -843,7 +843,7 @@ static int ghes_notify_nmi(unsigned int cmd, struct pt_regs *regs) #ifdef CONFIG_ARCH_HAVE_NMI_SAFE_CMPXCHG u32 len, node_len; struct ghes_estatus_node *estatus_node; - struct acpi_hest_generic_status *estatus; + struct acpi_generic_status *estatus; #endif if (!(ghes->flags & GHES_TO_CLEAR)) continue; @@ -851,7 +851,7 @@ static int ghes_notify_nmi(unsigned int cmd, struct pt_regs *regs) if (ghes_estatus_cached(ghes->estatus)) goto next; /* Save estatus for further processing in IRQ context */ - len = apei_estatus_len(ghes->estatus); + len = cper_estatus_len(ghes->estatus); node_len = GHES_ESTATUS_NODE_LEN(len); estatus_node = (void *)gen_pool_alloc(ghes_estatus_pool, node_len); @@ -923,7 +923,7 @@ static int ghes_probe(struct platform_device *ghes_dev) rc = -EIO; if (generic->error_block_length < - sizeof(struct acpi_hest_generic_status)) { + sizeof(struct acpi_generic_status)) { pr_warning(FW_BUG GHES_PFX "Invalid error block length: %u for generic hardware error source: %d\n", generic->error_block_length, generic->header.source_id); diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c index 2c9958cd7a43..fbf1aceda8b8 100644 --- a/drivers/acpi/battery.c +++ b/drivers/acpi/battery.c @@ -36,12 +36,6 @@ #include <linux/suspend.h> #include <asm/unaligned.h> -#ifdef CONFIG_ACPI_PROCFS_POWER -#include <linux/proc_fs.h> -#include <linux/seq_file.h> -#include <asm/uaccess.h> -#endif - #include <acpi/acpi_bus.h> #include <acpi/acpi_drivers.h> #include <linux/power_supply.h> @@ -72,19 +66,6 @@ static unsigned int cache_time = 1000; module_param(cache_time, uint, 0644); MODULE_PARM_DESC(cache_time, "cache time in milliseconds"); -#ifdef CONFIG_ACPI_PROCFS_POWER -extern struct proc_dir_entry *acpi_lock_battery_dir(void); -extern void *acpi_unlock_battery_dir(struct proc_dir_entry *acpi_battery_dir); - -enum acpi_battery_files { - info_tag = 0, - state_tag, - alarm_tag, - ACPI_BATTERY_NUMFILES, -}; - -#endif - static const struct acpi_device_id battery_device_ids[] = { {"PNP0C0A", 0}, {"", 0}, @@ -320,14 +301,6 @@ static enum power_supply_property energy_battery_props[] = { POWER_SUPPLY_PROP_SERIAL_NUMBER, }; -#ifdef CONFIG_ACPI_PROCFS_POWER -inline char *acpi_battery_units(struct acpi_battery *battery) -{ - return (battery->power_unit == ACPI_BATTERY_POWER_UNIT_MA) ? - "mA" : "mW"; -} -#endif - /* -------------------------------------------------------------------------- Battery Management -------------------------------------------------------------------------- */ @@ -741,279 +714,6 @@ static void acpi_battery_refresh(struct acpi_battery *battery) } /* -------------------------------------------------------------------------- - FS Interface (/proc) - -------------------------------------------------------------------------- */ - -#ifdef CONFIG_ACPI_PROCFS_POWER -static struct proc_dir_entry *acpi_battery_dir; - -static int acpi_battery_print_info(struct seq_file *seq, int result) -{ - struct acpi_battery *battery = seq->private; - - if (result) - goto end; - - seq_printf(seq, "present: %s\n", - acpi_battery_present(battery) ? "yes" : "no"); - if (!acpi_battery_present(battery)) - goto end; - if (battery->design_capacity == ACPI_BATTERY_VALUE_UNKNOWN) - seq_printf(seq, "design capacity: unknown\n"); - else - seq_printf(seq, "design capacity: %d %sh\n", - battery->design_capacity, - acpi_battery_units(battery)); - - if (battery->full_charge_capacity == ACPI_BATTERY_VALUE_UNKNOWN) - seq_printf(seq, "last full capacity: unknown\n"); - else - seq_printf(seq, "last full capacity: %d %sh\n", - battery->full_charge_capacity, - acpi_battery_units(battery)); - - seq_printf(seq, "battery technology: %srechargeable\n", - (!battery->technology)?"non-":""); - - if (battery->design_voltage == ACPI_BATTERY_VALUE_UNKNOWN) - seq_printf(seq, "design voltage: unknown\n"); - else - seq_printf(seq, "design voltage: %d mV\n", - battery->design_voltage); - seq_printf(seq, "design capacity warning: %d %sh\n", - battery->design_capacity_warning, - acpi_battery_units(battery)); - seq_printf(seq, "design capacity low: %d %sh\n", - battery->design_capacity_low, - acpi_battery_units(battery)); - seq_printf(seq, "cycle count: %i\n", battery->cycle_count); - seq_printf(seq, "capacity granularity 1: %d %sh\n", - battery->capacity_granularity_1, - acpi_battery_units(battery)); - seq_printf(seq, "capacity granularity 2: %d %sh\n", - battery->capacity_granularity_2, - acpi_battery_units(battery)); - seq_printf(seq, "model number: %s\n", battery->model_number); - seq_printf(seq, "serial number: %s\n", battery->serial_number); - seq_printf(seq, "battery type: %s\n", battery->type); - seq_printf(seq, "OEM info: %s\n", battery->oem_info); - end: - if (result) - seq_printf(seq, "ERROR: Unable to read battery info\n"); - return result; -} - -static int acpi_battery_print_state(struct seq_file *seq, int result) -{ - struct acpi_battery *battery = seq->private; - - if (result) - goto end; - - seq_printf(seq, "present: %s\n", - acpi_battery_present(battery) ? "yes" : "no"); - if (!acpi_battery_present(battery)) - goto end; - - seq_printf(seq, "capacity state: %s\n", - (battery->state & 0x04) ? "critical" : "ok"); - if ((battery->state & 0x01) && (battery->state & 0x02)) - seq_printf(seq, - "charging state: charging/discharging\n"); - else if (battery->state & 0x01) - seq_printf(seq, "charging state: discharging\n"); - else if (battery->state & 0x02) - seq_printf(seq, "charging state: charging\n"); - else - seq_printf(seq, "charging state: charged\n"); - - if (battery->rate_now == ACPI_BATTERY_VALUE_UNKNOWN) - seq_printf(seq, "present rate: unknown\n"); - else - seq_printf(seq, "present rate: %d %s\n", - battery->rate_now, acpi_battery_units(battery)); - - if (battery->capacity_now == ACPI_BATTERY_VALUE_UNKNOWN) - seq_printf(seq, "remaining capacity: unknown\n"); - else - seq_printf(seq, "remaining capacity: %d %sh\n", - battery->capacity_now, acpi_battery_units(battery)); - if (battery->voltage_now == ACPI_BATTERY_VALUE_UNKNOWN) - seq_printf(seq, "present voltage: unknown\n"); - else - seq_printf(seq, "present voltage: %d mV\n", - battery->voltage_now); - end: - if (result) - seq_printf(seq, "ERROR: Unable to read battery state\n"); - - return result; -} - -static int acpi_battery_print_alarm(struct seq_file *seq, int result) -{ - struct acpi_battery *battery = seq->private; - - if (result) - goto end; - - if (!acpi_battery_present(battery)) { - seq_printf(seq, "present: no\n"); - goto end; - } - seq_printf(seq, "alarm: "); - if (!battery->alarm) - seq_printf(seq, "unsupported\n"); - else - seq_printf(seq, "%u %sh\n", battery->alarm, - acpi_battery_units(battery)); - end: - if (result) - seq_printf(seq, "ERROR: Unable to read battery alarm\n"); - return result; -} - -static ssize_t acpi_battery_write_alarm(struct file *file, - const char __user * buffer, - size_t count, loff_t * ppos) -{ - int result = 0; - char alarm_string[12] = { '\0' }; - struct seq_file *m = file->private_data; - struct acpi_battery *battery = m->private; - - if (!battery || (count > sizeof(alarm_string) - 1)) - return -EINVAL; - if (!acpi_battery_present(battery)) { - result = -ENODEV; - goto end; - } - if (copy_from_user(alarm_string, buffer, count)) { - result = -EFAULT; - goto end; - } - alarm_string[count] = '\0'; - battery->alarm = simple_strtol(alarm_string, NULL, 0); - result = acpi_battery_set_alarm(battery); - end: - if (!result) - return count; - return result; -} - -typedef int(*print_func)(struct seq_file *seq, int result); - -static print_func acpi_print_funcs[ACPI_BATTERY_NUMFILES] = { - acpi_battery_print_info, - acpi_battery_print_state, - acpi_battery_print_alarm, -}; - -static int acpi_battery_read(int fid, struct seq_file *seq) -{ - struct acpi_battery *battery = seq->private; - int result = acpi_battery_update(battery); - return acpi_print_funcs[fid](seq, result); -} - -#define DECLARE_FILE_FUNCTIONS(_name) \ -static int acpi_battery_read_##_name(struct seq_file *seq, void *offset) \ -{ \ - return acpi_battery_read(_name##_tag, seq); \ -} \ -static int acpi_battery_##_name##_open_fs(struct inode *inode, struct file *file) \ -{ \ - return single_open(file, acpi_battery_read_##_name, PDE_DATA(inode)); \ -} - -DECLARE_FILE_FUNCTIONS(info); -DECLARE_FILE_FUNCTIONS(state); -DECLARE_FILE_FUNCTIONS(alarm); - -#undef DECLARE_FILE_FUNCTIONS - -#define FILE_DESCRIPTION_RO(_name) \ - { \ - .name = __stringify(_name), \ - .mode = S_IRUGO, \ - .ops = { \ - .open = acpi_battery_##_name##_open_fs, \ - .read = seq_read, \ - .llseek = seq_lseek, \ - .release = single_release, \ - .owner = THIS_MODULE, \ - }, \ - } - -#define FILE_DESCRIPTION_RW(_name) \ - { \ - .name = __stringify(_name), \ - .mode = S_IFREG | S_IRUGO | S_IWUSR, \ - .ops = { \ - .open = acpi_battery_##_name##_open_fs, \ - .read = seq_read, \ - .llseek = seq_lseek, \ - .write = acpi_battery_write_##_name, \ - .release = single_release, \ - .owner = THIS_MODULE, \ - }, \ - } - -static const struct battery_file { - struct file_operations ops; - umode_t mode; - const char *name; -} acpi_battery_file[] = { - FILE_DESCRIPTION_RO(info), - FILE_DESCRIPTION_RO(state), - FILE_DESCRIPTION_RW(alarm), -}; - -#undef FILE_DESCRIPTION_RO -#undef FILE_DESCRIPTION_RW - -static int acpi_battery_add_fs(struct acpi_device *device) -{ - struct proc_dir_entry *entry = NULL; - int i; - - printk(KERN_WARNING PREFIX "Deprecated procfs I/F for battery is loaded," - " please retry with CONFIG_ACPI_PROCFS_POWER cleared\n"); - if (!acpi_device_dir(device)) { - acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device), - acpi_battery_dir); - if (!acpi_device_dir(device)) - return -ENODEV; - } - - for (i = 0; i < ACPI_BATTERY_NUMFILES; ++i) { - entry = proc_create_data(acpi_battery_file[i].name, - acpi_battery_file[i].mode, - acpi_device_dir(device), - &acpi_battery_file[i].ops, - acpi_driver_data(device)); - if (!entry) - return -ENODEV; - } - return 0; -} - -static void acpi_battery_remove_fs(struct acpi_device *device) -{ - int i; - if (!acpi_device_dir(device)) - return; - for (i = 0; i < ACPI_BATTERY_NUMFILES; ++i) - remove_proc_entry(acpi_battery_file[i].name, - acpi_device_dir(device)); - - remove_proc_entry(acpi_device_bid(device), acpi_battery_dir); - acpi_device_dir(device) = NULL; -} - -#endif - -/* -------------------------------------------------------------------------- Driver Interface -------------------------------------------------------------------------- */ @@ -1075,15 +775,6 @@ static int acpi_battery_add(struct acpi_device *device) result = acpi_battery_update(battery); if (result) goto fail; -#ifdef CONFIG_ACPI_PROCFS_POWER - result = acpi_battery_add_fs(device); -#endif - if (result) { -#ifdef CONFIG_ACPI_PROCFS_POWER - acpi_battery_remove_fs(device); -#endif - goto fail; - } printk(KERN_INFO PREFIX "%s Slot [%s] (battery %s)\n", ACPI_BATTERY_DEVICE_NAME, acpi_device_bid(device), @@ -1110,9 +801,6 @@ static int acpi_battery_remove(struct acpi_device *device) return -EINVAL; battery = acpi_driver_data(device); unregister_pm_notifier(&battery->pm_nb); -#ifdef CONFIG_ACPI_PROCFS_POWER - acpi_battery_remove_fs(device); -#endif sysfs_remove_battery(battery); mutex_destroy(&battery->lock); mutex_destroy(&battery->sysfs_lock); @@ -1158,18 +846,7 @@ static void __init acpi_battery_init_async(void *unused, async_cookie_t cookie) { if (acpi_disabled) return; -#ifdef CONFIG_ACPI_PROCFS_POWER - acpi_battery_dir = acpi_lock_battery_dir(); - if (!acpi_battery_dir) - return; -#endif - if (acpi_bus_register_driver(&acpi_battery_driver) < 0) { -#ifdef CONFIG_ACPI_PROCFS_POWER - acpi_unlock_battery_dir(acpi_battery_dir); -#endif - return; - } - return; + acpi_bus_register_driver(&acpi_battery_driver); } static int __init acpi_battery_init(void) @@ -1181,9 +858,6 @@ static int __init acpi_battery_init(void) static void __exit acpi_battery_exit(void) { acpi_bus_unregister_driver(&acpi_battery_driver); -#ifdef CONFIG_ACPI_PROCFS_POWER - acpi_unlock_battery_dir(acpi_battery_dir); -#endif } module_init(acpi_battery_init); diff --git a/drivers/acpi/blacklist.c b/drivers/acpi/blacklist.c index 9515f18898b2..078c4f7fe2dd 100644 --- a/drivers/acpi/blacklist.c +++ b/drivers/acpi/blacklist.c @@ -75,39 +75,6 @@ static struct acpi_blacklist_item acpi_blacklist[] __initdata = { {""} }; -#if CONFIG_ACPI_BLACKLIST_YEAR - -static int __init blacklist_by_year(void) -{ - int year; - - /* Doesn't exist? Likely an old system */ - if (!dmi_get_date(DMI_BIOS_DATE, &year, NULL, NULL)) { - printk(KERN_ERR PREFIX "no DMI BIOS year, " - "acpi=force is required to enable ACPI\n" ); - return 1; - } - /* 0? Likely a buggy new BIOS */ - if (year == 0) { - printk(KERN_ERR PREFIX "DMI BIOS year==0, " - "assuming ACPI-capable machine\n" ); - return 0; - } - if (year < CONFIG_ACPI_BLACKLIST_YEAR) { - printk(KERN_ERR PREFIX "BIOS age (%d) fails cutoff (%d), " - "acpi=force is required to enable ACPI\n", - year, CONFIG_ACPI_BLACKLIST_YEAR); - return 1; - } - return 0; -} -#else -static inline int blacklist_by_year(void) -{ - return 0; -} -#endif - int __init acpi_blacklisted(void) { int i = 0; @@ -166,8 +133,6 @@ int __init acpi_blacklisted(void) } } - blacklisted += blacklist_by_year(); - dmi_check_system(acpi_osi_dmi_table); return blacklisted; @@ -274,6 +239,19 @@ static struct dmi_system_id acpi_osi_dmi_table[] __initdata = { }, }, { + .callback = dmi_disable_osi_vista, + .ident = "Toshiba NB100", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), + DMI_MATCH(DMI_PRODUCT_NAME, "NB100"), + }, + }, + + /* + * The following machines have broken backlight support when reporting + * the Windows 2012 OSI, so disable it until their support is fixed. + */ + { .callback = dmi_disable_osi_win8, .ident = "ASUS Zenbook Prime UX31A", .matches = { @@ -291,12 +269,60 @@ static struct dmi_system_id acpi_osi_dmi_table[] __initdata = { }, { .callback = dmi_disable_osi_win8, - .ident = "Lenovo ThinkPad Edge E530", + .ident = "ThinkPad Edge E530", .matches = { DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), DMI_MATCH(DMI_PRODUCT_VERSION, "3259A2G"), }, }, + { + .callback = dmi_disable_osi_win8, + .ident = "ThinkPad Edge E530", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_PRODUCT_VERSION, "3259CTO"), + }, + }, + { + .callback = dmi_disable_osi_win8, + .ident = "ThinkPad Edge E530", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_PRODUCT_VERSION, "3259HJG"), + }, + }, + { + .callback = dmi_disable_osi_win8, + .ident = "Acer Aspire V5-573G", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Acer Aspire"), + DMI_MATCH(DMI_PRODUCT_VERSION, "V5-573G/Dazzle_HW"), + }, + }, + { + .callback = dmi_disable_osi_win8, + .ident = "Acer Aspire V5-572G", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Acer Aspire"), + DMI_MATCH(DMI_PRODUCT_VERSION, "V5-572G/Dazzle_CX"), + }, + }, + { + .callback = dmi_disable_osi_win8, + .ident = "ThinkPad T431s", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_PRODUCT_VERSION, "20AACTO1WW"), + }, + }, + { + .callback = dmi_disable_osi_win8, + .ident = "ThinkPad T430", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_PRODUCT_VERSION, "2349D15"), + }, + }, /* * BIOS invocation of _OSI(Linux) is almost always a BIOS bug. diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c index b587ec8257b2..bba9b72e25f8 100644 --- a/drivers/acpi/bus.c +++ b/drivers/acpi/bus.c @@ -174,7 +174,7 @@ static void acpi_print_osc_error(acpi_handle handle, printk("\n"); } -static acpi_status acpi_str_to_uuid(char *str, u8 *uuid) +acpi_status acpi_str_to_uuid(char *str, u8 *uuid) { int i; static int opc_map_to_uuid[16] = {6, 4, 2, 0, 11, 9, 16, 14, 19, 21, @@ -195,6 +195,7 @@ static acpi_status acpi_str_to_uuid(char *str, u8 *uuid) } return AE_OK; } +EXPORT_SYMBOL_GPL(acpi_str_to_uuid); acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context) { @@ -255,7 +256,7 @@ acpi_status acpi_run_osc(acpi_handle handle, struct acpi_osc_context *context) acpi_print_osc_error(handle, context, "_OSC invalid revision"); if (errors & OSC_CAPABILITIES_MASK_ERROR) { - if (((u32 *)context->cap.pointer)[OSC_QUERY_TYPE] + if (((u32 *)context->cap.pointer)[OSC_QUERY_DWORD] & OSC_QUERY_ENABLE) goto out_success; status = AE_SUPPORT; @@ -295,30 +296,30 @@ static void acpi_bus_osc_support(void) }; acpi_handle handle; - capbuf[OSC_QUERY_TYPE] = OSC_QUERY_ENABLE; - capbuf[OSC_SUPPORT_TYPE] = OSC_SB_PR3_SUPPORT; /* _PR3 is in use */ + capbuf[OSC_QUERY_DWORD] = OSC_QUERY_ENABLE; + capbuf[OSC_SUPPORT_DWORD] = OSC_SB_PR3_SUPPORT; /* _PR3 is in use */ #if defined(CONFIG_ACPI_PROCESSOR_AGGREGATOR) ||\ defined(CONFIG_ACPI_PROCESSOR_AGGREGATOR_MODULE) - capbuf[OSC_SUPPORT_TYPE] |= OSC_SB_PAD_SUPPORT; + capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_PAD_SUPPORT; #endif #if defined(CONFIG_ACPI_PROCESSOR) || defined(CONFIG_ACPI_PROCESSOR_MODULE) - capbuf[OSC_SUPPORT_TYPE] |= OSC_SB_PPC_OST_SUPPORT; + capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_PPC_OST_SUPPORT; #endif #ifdef ACPI_HOTPLUG_OST - capbuf[OSC_SUPPORT_TYPE] |= OSC_SB_HOTPLUG_OST_SUPPORT; + capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_HOTPLUG_OST_SUPPORT; #endif if (!ghes_disable) - capbuf[OSC_SUPPORT_TYPE] |= OSC_SB_APEI_SUPPORT; + capbuf[OSC_SUPPORT_DWORD] |= OSC_SB_APEI_SUPPORT; if (ACPI_FAILURE(acpi_get_handle(NULL, "\\_SB", &handle))) return; if (ACPI_SUCCESS(acpi_run_osc(handle, &context))) { u32 *capbuf_ret = context.ret.pointer; - if (context.ret.length > OSC_SUPPORT_TYPE) + if (context.ret.length > OSC_SUPPORT_DWORD) osc_sb_apei_support_acked = - capbuf_ret[OSC_SUPPORT_TYPE] & OSC_SB_APEI_SUPPORT; + capbuf_ret[OSC_SUPPORT_DWORD] & OSC_SB_APEI_SUPPORT; kfree(context.ret.pointer); } /* do we need to check other returned cap? Sounds no */ diff --git a/drivers/acpi/button.c b/drivers/acpi/button.c index a55773801c5f..c971929d75c2 100644 --- a/drivers/acpi/button.c +++ b/drivers/acpi/button.c @@ -383,18 +383,15 @@ static int acpi_button_add(struct acpi_device *device) switch (button->type) { case ACPI_BUTTON_TYPE_POWER: - input->evbit[0] = BIT_MASK(EV_KEY); - set_bit(KEY_POWER, input->keybit); + input_set_capability(input, EV_KEY, KEY_POWER); break; case ACPI_BUTTON_TYPE_SLEEP: - input->evbit[0] = BIT_MASK(EV_KEY); - set_bit(KEY_SLEEP, input->keybit); + input_set_capability(input, EV_KEY, KEY_SLEEP); break; case ACPI_BUTTON_TYPE_LID: - input->evbit[0] = BIT_MASK(EV_SW); - set_bit(SW_LID, input->swbit); + input_set_capability(input, EV_SW, SW_LID); break; } diff --git a/drivers/acpi/cm_sbs.c b/drivers/acpi/cm_sbs.c deleted file mode 100644 index 6c9ee68e46fb..000000000000 --- a/drivers/acpi/cm_sbs.c +++ /dev/null @@ -1,105 +0,0 @@ -/* - * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or (at - * your option) any later version. - * - * This program is distributed in the hope that 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., - * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. - * - * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - */ - -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/init.h> -#include <linux/acpi.h> -#include <linux/types.h> -#include <linux/proc_fs.h> -#include <linux/seq_file.h> -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> - -#define PREFIX "ACPI: " - -ACPI_MODULE_NAME("cm_sbs"); -#define ACPI_AC_CLASS "ac_adapter" -#define ACPI_BATTERY_CLASS "battery" -#define _COMPONENT ACPI_SBS_COMPONENT -static struct proc_dir_entry *acpi_ac_dir; -static struct proc_dir_entry *acpi_battery_dir; - -static DEFINE_MUTEX(cm_sbs_mutex); - -static int lock_ac_dir_cnt; -static int lock_battery_dir_cnt; - -struct proc_dir_entry *acpi_lock_ac_dir(void) -{ - mutex_lock(&cm_sbs_mutex); - if (!acpi_ac_dir) - acpi_ac_dir = proc_mkdir(ACPI_AC_CLASS, acpi_root_dir); - if (acpi_ac_dir) { - lock_ac_dir_cnt++; - } else { - printk(KERN_ERR PREFIX - "Cannot create %s\n", ACPI_AC_CLASS); - } - mutex_unlock(&cm_sbs_mutex); - return acpi_ac_dir; -} -EXPORT_SYMBOL(acpi_lock_ac_dir); - -void acpi_unlock_ac_dir(struct proc_dir_entry *acpi_ac_dir_param) -{ - mutex_lock(&cm_sbs_mutex); - if (acpi_ac_dir_param) - lock_ac_dir_cnt--; - if (lock_ac_dir_cnt == 0 && acpi_ac_dir_param && acpi_ac_dir) { - remove_proc_entry(ACPI_AC_CLASS, acpi_root_dir); - acpi_ac_dir = NULL; - } - mutex_unlock(&cm_sbs_mutex); -} -EXPORT_SYMBOL(acpi_unlock_ac_dir); - -struct proc_dir_entry *acpi_lock_battery_dir(void) -{ - mutex_lock(&cm_sbs_mutex); - if (!acpi_battery_dir) { - acpi_battery_dir = - proc_mkdir(ACPI_BATTERY_CLASS, acpi_root_dir); - } - if (acpi_battery_dir) { - lock_battery_dir_cnt++; - } else { - printk(KERN_ERR PREFIX - "Cannot create %s\n", ACPI_BATTERY_CLASS); - } - mutex_unlock(&cm_sbs_mutex); - return acpi_battery_dir; -} -EXPORT_SYMBOL(acpi_lock_battery_dir); - -void acpi_unlock_battery_dir(struct proc_dir_entry *acpi_battery_dir_param) -{ - mutex_lock(&cm_sbs_mutex); - if (acpi_battery_dir_param) - lock_battery_dir_cnt--; - if (lock_battery_dir_cnt == 0 && acpi_battery_dir_param - && acpi_battery_dir) { - remove_proc_entry(ACPI_BATTERY_CLASS, acpi_root_dir); - acpi_battery_dir = NULL; - } - mutex_unlock(&cm_sbs_mutex); - return; -} -EXPORT_SYMBOL(acpi_unlock_battery_dir); diff --git a/drivers/acpi/device_pm.c b/drivers/acpi/device_pm.c index 59d3202f6b36..b3480cf7db1a 100644 --- a/drivers/acpi/device_pm.c +++ b/drivers/acpi/device_pm.c @@ -22,16 +22,12 @@ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */ -#include <linux/device.h> +#include <linux/acpi.h> #include <linux/export.h> #include <linux/mutex.h> #include <linux/pm_qos.h> #include <linux/pm_runtime.h> -#include <acpi/acpi.h> -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> - #include "internal.h" #define _COMPONENT ACPI_POWER_COMPONENT @@ -118,9 +114,10 @@ int acpi_device_get_power(struct acpi_device *device, int *state) /* * If we were unsure about the device parent's power state up to this * point, the fact that the device is in D0 implies that the parent has - * to be in D0 too. + * to be in D0 too, except if ignore_parent is set. */ - if (device->parent && device->parent->power.state == ACPI_STATE_UNKNOWN + if (!device->power.flags.ignore_parent && device->parent + && device->parent->power.state == ACPI_STATE_UNKNOWN && result == ACPI_STATE_D0) device->parent->power.state = ACPI_STATE_D0; @@ -177,7 +174,8 @@ int acpi_device_set_power(struct acpi_device *device, int state) acpi_power_state_string(state)); return -ENODEV; } - if (device->parent && (state < device->parent->power.state)) { + if (!device->power.flags.ignore_parent && + device->parent && (state < device->parent->power.state)) { dev_warn(&device->dev, "Cannot transition to power state %s for parent in %s\n", acpi_power_state_string(state), @@ -546,7 +544,7 @@ static int acpi_dev_pm_get_state(struct device *dev, struct acpi_device *adev, */ int acpi_pm_device_sleep_state(struct device *dev, int *d_min_p, int d_max_in) { - acpi_handle handle = DEVICE_ACPI_HANDLE(dev); + acpi_handle handle = ACPI_HANDLE(dev); struct acpi_device *adev; int ret, d_min, d_max; @@ -654,7 +652,7 @@ int acpi_pm_device_run_wake(struct device *phys_dev, bool enable) if (!device_run_wake(phys_dev)) return -EINVAL; - handle = DEVICE_ACPI_HANDLE(phys_dev); + handle = ACPI_HANDLE(phys_dev); if (!handle || acpi_bus_get_device(handle, &adev)) { dev_dbg(phys_dev, "ACPI handle without context in %s!\n", __func__); @@ -698,7 +696,7 @@ int acpi_pm_device_sleep_wake(struct device *dev, bool enable) if (!device_can_wakeup(dev)) return -EINVAL; - handle = DEVICE_ACPI_HANDLE(dev); + handle = ACPI_HANDLE(dev); if (!handle || acpi_bus_get_device(handle, &adev)) { dev_dbg(dev, "ACPI handle without context in %s!\n", __func__); return -ENODEV; @@ -720,7 +718,7 @@ int acpi_pm_device_sleep_wake(struct device *dev, bool enable) */ struct acpi_device *acpi_dev_pm_get_node(struct device *dev) { - acpi_handle handle = DEVICE_ACPI_HANDLE(dev); + acpi_handle handle = ACPI_HANDLE(dev); struct acpi_device *adev; return handle && !acpi_bus_get_device(handle, &adev) ? adev : NULL; @@ -1025,60 +1023,4 @@ void acpi_dev_pm_detach(struct device *dev, bool power_off) } } EXPORT_SYMBOL_GPL(acpi_dev_pm_detach); - -/** - * acpi_dev_pm_add_dependent - Add physical device depending for PM. - * @handle: Handle of ACPI device node. - * @depdev: Device depending on that node for PM. - */ -void acpi_dev_pm_add_dependent(acpi_handle handle, struct device *depdev) -{ - struct acpi_device_physical_node *dep; - struct acpi_device *adev; - - if (!depdev || acpi_bus_get_device(handle, &adev)) - return; - - mutex_lock(&adev->physical_node_lock); - - list_for_each_entry(dep, &adev->power_dependent, node) - if (dep->dev == depdev) - goto out; - - dep = kzalloc(sizeof(*dep), GFP_KERNEL); - if (dep) { - dep->dev = depdev; - list_add_tail(&dep->node, &adev->power_dependent); - } - - out: - mutex_unlock(&adev->physical_node_lock); -} -EXPORT_SYMBOL_GPL(acpi_dev_pm_add_dependent); - -/** - * acpi_dev_pm_remove_dependent - Remove physical device depending for PM. - * @handle: Handle of ACPI device node. - * @depdev: Device depending on that node for PM. - */ -void acpi_dev_pm_remove_dependent(acpi_handle handle, struct device *depdev) -{ - struct acpi_device_physical_node *dep; - struct acpi_device *adev; - - if (!depdev || acpi_bus_get_device(handle, &adev)) - return; - - mutex_lock(&adev->physical_node_lock); - - list_for_each_entry(dep, &adev->power_dependent, node) - if (dep->dev == depdev) { - list_del(&dep->node); - kfree(dep); - break; - } - - mutex_unlock(&adev->physical_node_lock); -} -EXPORT_SYMBOL_GPL(acpi_dev_pm_remove_dependent); #endif /* CONFIG_PM */ diff --git a/drivers/acpi/dock.c b/drivers/acpi/dock.c index 05ea4be01a83..dcd73ccb514c 100644 --- a/drivers/acpi/dock.c +++ b/drivers/acpi/dock.c @@ -441,7 +441,7 @@ static void handle_dock(struct dock_station *ds, int dock) acpi_status status; struct acpi_object_list arg_list; union acpi_object arg; - struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; + unsigned long long value; acpi_handle_info(ds->handle, "%s\n", dock ? "docking" : "undocking"); @@ -450,12 +450,10 @@ static void handle_dock(struct dock_station *ds, int dock) arg_list.pointer = &arg; arg.type = ACPI_TYPE_INTEGER; arg.integer.value = dock; - status = acpi_evaluate_object(ds->handle, "_DCK", &arg_list, &buffer); + status = acpi_evaluate_integer(ds->handle, "_DCK", &arg_list, &value); if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) acpi_handle_err(ds->handle, "Failed to execute _DCK (0x%x)\n", status); - - kfree(buffer.pointer); } static inline void dock(struct dock_station *ds) @@ -671,39 +669,20 @@ static void dock_notify(struct dock_station *ds, u32 event) } } -struct dock_data { - struct dock_station *ds; - u32 event; -}; - -static void acpi_dock_deferred_cb(void *context) +static void acpi_dock_deferred_cb(void *data, u32 event) { - struct dock_data *data = context; - acpi_scan_lock_acquire(); - dock_notify(data->ds, data->event); + dock_notify(data, event); acpi_scan_lock_release(); - kfree(data); } static void dock_notify_handler(acpi_handle handle, u32 event, void *data) { - struct dock_data *dd; - if (event != ACPI_NOTIFY_BUS_CHECK && event != ACPI_NOTIFY_DEVICE_CHECK && event != ACPI_NOTIFY_EJECT_REQUEST) return; - dd = kmalloc(sizeof(*dd), GFP_KERNEL); - if (dd) { - acpi_status status; - - dd->ds = data; - dd->event = event; - status = acpi_os_hotplug_execute(acpi_dock_deferred_cb, dd); - if (ACPI_FAILURE(status)) - kfree(dd); - } + acpi_hotplug_execute(acpi_dock_deferred_cb, data, event); } /** diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c index a06d98374705..ba5b56db9d27 100644 --- a/drivers/acpi/ec.c +++ b/drivers/acpi/ec.c @@ -28,6 +28,7 @@ /* Uncomment next line to get verbose printout */ /* #define DEBUG */ +#define pr_fmt(fmt) "ACPI : EC: " fmt #include <linux/kernel.h> #include <linux/module.h> @@ -49,9 +50,6 @@ #define ACPI_EC_DEVICE_NAME "Embedded Controller" #define ACPI_EC_FILE_INFO "info" -#undef PREFIX -#define PREFIX "ACPI: EC: " - /* EC status register */ #define ACPI_EC_FLAG_OBF 0x01 /* Output buffer full */ #define ACPI_EC_FLAG_IBF 0x02 /* Input buffer full */ @@ -131,26 +129,26 @@ static int EC_FLAGS_SKIP_DSDT_SCAN; /* Not all BIOS survive early DSDT scan */ static inline u8 acpi_ec_read_status(struct acpi_ec *ec) { u8 x = inb(ec->command_addr); - pr_debug(PREFIX "---> status = 0x%2.2x\n", x); + pr_debug("---> status = 0x%2.2x\n", x); return x; } static inline u8 acpi_ec_read_data(struct acpi_ec *ec) { u8 x = inb(ec->data_addr); - pr_debug(PREFIX "---> data = 0x%2.2x\n", x); + pr_debug("---> data = 0x%2.2x\n", x); return x; } static inline void acpi_ec_write_cmd(struct acpi_ec *ec, u8 command) { - pr_debug(PREFIX "<--- command = 0x%2.2x\n", command); + pr_debug("<--- command = 0x%2.2x\n", command); outb(command, ec->command_addr); } static inline void acpi_ec_write_data(struct acpi_ec *ec, u8 data) { - pr_debug(PREFIX "<--- data = 0x%2.2x\n", data); + pr_debug("<--- data = 0x%2.2x\n", data); outb(data, ec->data_addr); } @@ -175,9 +173,10 @@ static void start_transaction(struct acpi_ec *ec) static void advance_transaction(struct acpi_ec *ec, u8 status) { unsigned long flags; - struct transaction *t = ec->curr; + struct transaction *t; spin_lock_irqsave(&ec->lock, flags); + t = ec->curr; if (!t) goto unlock; if (t->wlen > t->wi) { @@ -241,7 +240,7 @@ static int ec_poll(struct acpi_ec *ec) } advance_transaction(ec, acpi_ec_read_status(ec)); } while (time_before(jiffies, delay)); - pr_debug(PREFIX "controller reset, restart transaction\n"); + pr_debug("controller reset, restart transaction\n"); spin_lock_irqsave(&ec->lock, flags); start_transaction(ec); spin_unlock_irqrestore(&ec->lock, flags); @@ -309,12 +308,12 @@ static int acpi_ec_transaction(struct acpi_ec *ec, struct transaction *t) } } if (ec_wait_ibf0(ec)) { - pr_err(PREFIX "input buffer is not empty, " + pr_err("input buffer is not empty, " "aborting transaction\n"); status = -ETIME; goto end; } - pr_debug(PREFIX "transaction start (cmd=0x%02x, addr=0x%02x)\n", + pr_debug("transaction start (cmd=0x%02x, addr=0x%02x)\n", t->command, t->wdata ? t->wdata[0] : 0); /* disable GPE during transaction if storm is detected */ if (test_bit(EC_FLAGS_GPE_STORM, &ec->flags)) { @@ -331,12 +330,12 @@ static int acpi_ec_transaction(struct acpi_ec *ec, struct transaction *t) /* It is safe to enable the GPE outside of the transaction. */ acpi_enable_gpe(NULL, ec->gpe); } else if (t->irq_count > ec_storm_threshold) { - pr_info(PREFIX "GPE storm detected(%d GPEs), " + pr_info("GPE storm detected(%d GPEs), " "transactions will use polling mode\n", t->irq_count); set_bit(EC_FLAGS_GPE_STORM, &ec->flags); } - pr_debug(PREFIX "transaction end\n"); + pr_debug("transaction end\n"); end: if (ec->global_lock) acpi_release_global_lock(glk); @@ -570,12 +569,12 @@ static void acpi_ec_run(void *cxt) struct acpi_ec_query_handler *handler = cxt; if (!handler) return; - pr_debug(PREFIX "start query execution\n"); + pr_debug("start query execution\n"); if (handler->func) handler->func(handler->data); else if (handler->handle) acpi_evaluate_object(handler->handle, NULL, NULL, NULL); - pr_debug(PREFIX "stop query execution\n"); + pr_debug("stop query execution\n"); kfree(handler); } @@ -593,7 +592,8 @@ static int acpi_ec_sync_query(struct acpi_ec *ec) if (!copy) return -ENOMEM; memcpy(copy, handler, sizeof(*copy)); - pr_debug(PREFIX "push query execution (0x%2x) on queue\n", value); + pr_debug("push query execution (0x%2x) on queue\n", + value); return acpi_os_execute((copy->func) ? OSL_NOTIFY_HANDLER : OSL_GPE_HANDLER, acpi_ec_run, copy); @@ -616,7 +616,7 @@ static int ec_check_sci(struct acpi_ec *ec, u8 state) { if (state & ACPI_EC_FLAG_SCI) { if (!test_and_set_bit(EC_FLAGS_QUERY_PENDING, &ec->flags)) { - pr_debug(PREFIX "push gpe query to the queue\n"); + pr_debug("push gpe query to the queue\n"); return acpi_os_execute(OSL_NOTIFY_HANDLER, acpi_ec_gpe_query, ec); } @@ -630,7 +630,7 @@ static u32 acpi_ec_gpe_handler(acpi_handle gpe_device, struct acpi_ec *ec = data; u8 status = acpi_ec_read_status(ec); - pr_debug(PREFIX "~~~> interrupt, status:0x%02x\n", status); + pr_debug("~~~> interrupt, status:0x%02x\n", status); advance_transaction(ec, status); if (ec_transaction_done(ec) && @@ -776,7 +776,7 @@ static int ec_install_handlers(struct acpi_ec *ec) * The AE_NOT_FOUND error will be ignored and OS * continue to initialize EC. */ - printk(KERN_ERR "Fail in evaluating the _REG object" + pr_err("Fail in evaluating the _REG object" " of EC device. Broken bios is suspected.\n"); } else { acpi_remove_gpe_handler(NULL, ec->gpe, @@ -795,10 +795,10 @@ static void ec_remove_handlers(struct acpi_ec *ec) acpi_disable_gpe(NULL, ec->gpe); if (ACPI_FAILURE(acpi_remove_address_space_handler(ec->handle, ACPI_ADR_SPACE_EC, &acpi_ec_space_handler))) - pr_err(PREFIX "failed to remove space handler\n"); + pr_err("failed to remove space handler\n"); if (ACPI_FAILURE(acpi_remove_gpe_handler(NULL, ec->gpe, &acpi_ec_gpe_handler))) - pr_err(PREFIX "failed to remove gpe handler\n"); + pr_err("failed to remove gpe handler\n"); clear_bit(EC_FLAGS_HANDLERS_INSTALLED, &ec->flags); } @@ -840,7 +840,7 @@ static int acpi_ec_add(struct acpi_device *device) ret = !!request_region(ec->command_addr, 1, "EC cmd"); WARN(!ret, "Could not request EC cmd io port 0x%lx", ec->command_addr); - pr_info(PREFIX "GPE = 0x%lx, I/O: command/status = 0x%lx, data = 0x%lx\n", + pr_info("GPE = 0x%lx, I/O: command/status = 0x%lx, data = 0x%lx\n", ec->gpe, ec->command_addr, ec->data_addr); ret = ec_install_handlers(ec); @@ -931,7 +931,7 @@ static int ec_validate_ecdt(const struct dmi_system_id *id) /* MSI EC needs special treatment, enable it */ static int ec_flag_msi(const struct dmi_system_id *id) { - printk(KERN_DEBUG PREFIX "Detected MSI hardware, enabling workarounds.\n"); + pr_debug("Detected MSI hardware, enabling workarounds.\n"); EC_FLAGS_MSI = 1; EC_FLAGS_VALIDATE_ECDT = 1; return 0; @@ -1010,7 +1010,7 @@ int __init acpi_ec_ecdt_probe(void) status = acpi_get_table(ACPI_SIG_ECDT, 1, (struct acpi_table_header **)&ecdt_ptr); if (ACPI_SUCCESS(status)) { - pr_info(PREFIX "EC description table is found, configuring boot EC\n"); + pr_info("EC description table is found, configuring boot EC\n"); boot_ec->command_addr = ecdt_ptr->control.address; boot_ec->data_addr = ecdt_ptr->data.address; boot_ec->gpe = ecdt_ptr->gpe; @@ -1030,7 +1030,7 @@ int __init acpi_ec_ecdt_probe(void) /* This workaround is needed only on some broken machines, * which require early EC, but fail to provide ECDT */ - printk(KERN_DEBUG PREFIX "Look up EC in DSDT\n"); + pr_debug("Look up EC in DSDT\n"); status = acpi_get_devices(ec_device_ids[0].id, ec_parse_device, boot_ec, NULL); /* Check that acpi_get_devices actually find something */ @@ -1042,7 +1042,7 @@ int __init acpi_ec_ecdt_probe(void) saved_ec->data_addr != boot_ec->data_addr || saved_ec->gpe != boot_ec->gpe || saved_ec->handle != boot_ec->handle) - pr_info(PREFIX "ASUSTek keeps feeding us with broken " + pr_info("ASUSTek keeps feeding us with broken " "ECDT tables, which are very hard to workaround. " "Trying to use DSDT EC info instead. Please send " "output of acpidump to linux-acpi@vger.kernel.org\n"); diff --git a/drivers/acpi/event.c b/drivers/acpi/event.c index 8247fcdde079..cae3b387b867 100644 --- a/drivers/acpi/event.c +++ b/drivers/acpi/event.c @@ -78,15 +78,17 @@ enum { #define ACPI_GENL_VERSION 0x01 #define ACPI_GENL_MCAST_GROUP_NAME "acpi_mc_group" +static const struct genl_multicast_group acpi_event_mcgrps[] = { + { .name = ACPI_GENL_MCAST_GROUP_NAME, }, +}; + static struct genl_family acpi_event_genl_family = { .id = GENL_ID_GENERATE, .name = ACPI_GENL_FAMILY_NAME, .version = ACPI_GENL_VERSION, .maxattr = ACPI_GENL_ATTR_MAX, -}; - -static struct genl_multicast_group acpi_event_mcgrp = { - .name = ACPI_GENL_MCAST_GROUP_NAME, + .mcgrps = acpi_event_mcgrps, + .n_mcgrps = ARRAY_SIZE(acpi_event_mcgrps), }; int acpi_bus_generate_netlink_event(const char *device_class, @@ -127,11 +129,6 @@ int acpi_bus_generate_netlink_event(const char *device_class, } event = nla_data(attr); - if (!event) { - nlmsg_free(skb); - return -EINVAL; - } - memset(event, 0, sizeof(struct acpi_genl_event)); strcpy(event->device_class, device_class); @@ -146,7 +143,7 @@ int acpi_bus_generate_netlink_event(const char *device_class, return result; } - genlmsg_multicast(skb, 0, acpi_event_mcgrp.id, GFP_ATOMIC); + genlmsg_multicast(&acpi_event_genl_family, skb, 0, 0, GFP_ATOMIC); return 0; } @@ -154,18 +151,7 @@ EXPORT_SYMBOL(acpi_bus_generate_netlink_event); static int acpi_event_genetlink_init(void) { - int result; - - result = genl_register_family(&acpi_event_genl_family); - if (result) - return result; - - result = genl_register_mc_group(&acpi_event_genl_family, - &acpi_event_mcgrp); - if (result) - genl_unregister_family(&acpi_event_genl_family); - - return result; + return genl_register_family(&acpi_event_genl_family); } #else diff --git a/drivers/acpi/fan.c b/drivers/acpi/fan.c index 41ade6570bc0..ba3da88cee45 100644 --- a/drivers/acpi/fan.c +++ b/drivers/acpi/fan.c @@ -168,7 +168,7 @@ static int acpi_fan_add(struct acpi_device *device) acpi_device_name(device), acpi_device_bid(device), !device->power.state ? "on" : "off"); - end: +end: return result; } diff --git a/drivers/acpi/glue.c b/drivers/acpi/glue.c index 10f0f40587bb..a22a295edb69 100644 --- a/drivers/acpi/glue.c +++ b/drivers/acpi/glue.c @@ -197,30 +197,28 @@ static void acpi_physnode_link_name(char *buf, unsigned int node_id) int acpi_bind_one(struct device *dev, acpi_handle handle) { - struct acpi_device *acpi_dev; - acpi_status status; + 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; unsigned int node_id; int retval = -EINVAL; - if (ACPI_HANDLE(dev)) { + if (ACPI_COMPANION(dev)) { if (handle) { - dev_warn(dev, "ACPI handle is already set\n"); + dev_warn(dev, "ACPI companion already set\n"); return -EINVAL; } else { - handle = ACPI_HANDLE(dev); + acpi_dev = ACPI_COMPANION(dev); } + } else { + acpi_bus_get_device(handle, &acpi_dev); } - if (!handle) + if (!acpi_dev) return -EINVAL; + get_device(&acpi_dev->dev); get_device(dev); - status = acpi_bus_get_device(handle, &acpi_dev); - if (ACPI_FAILURE(status)) - goto err; - physical_node = kzalloc(sizeof(*physical_node), GFP_KERNEL); if (!physical_node) { retval = -ENOMEM; @@ -242,10 +240,11 @@ int acpi_bind_one(struct device *dev, acpi_handle handle) dev_warn(dev, "Already associated with ACPI node\n"); kfree(physical_node); - if (ACPI_HANDLE(dev) != handle) + if (ACPI_COMPANION(dev) != acpi_dev) goto err; put_device(dev); + put_device(&acpi_dev->dev); return 0; } if (pn->node_id == node_id) { @@ -259,8 +258,8 @@ int acpi_bind_one(struct device *dev, acpi_handle handle) list_add(&physical_node->node, physnode_list); acpi_dev->physical_node_count++; - if (!ACPI_HANDLE(dev)) - ACPI_HANDLE_SET(dev, acpi_dev->handle); + if (!ACPI_COMPANION(dev)) + ACPI_COMPANION_SET(dev, acpi_dev); acpi_physnode_link_name(physical_node_name, node_id); retval = sysfs_create_link(&acpi_dev->dev.kobj, &dev->kobj, @@ -283,27 +282,21 @@ int acpi_bind_one(struct device *dev, acpi_handle handle) return 0; err: - ACPI_HANDLE_SET(dev, NULL); + ACPI_COMPANION_SET(dev, NULL); put_device(dev); + put_device(&acpi_dev->dev); return retval; } EXPORT_SYMBOL_GPL(acpi_bind_one); int acpi_unbind_one(struct device *dev) { + struct acpi_device *acpi_dev = ACPI_COMPANION(dev); struct acpi_device_physical_node *entry; - struct acpi_device *acpi_dev; - acpi_status status; - if (!ACPI_HANDLE(dev)) + if (!acpi_dev) return 0; - status = acpi_bus_get_device(ACPI_HANDLE(dev), &acpi_dev); - if (ACPI_FAILURE(status)) { - dev_err(dev, "Oops, ACPI handle corrupt in %s()\n", __func__); - return -EINVAL; - } - mutex_lock(&acpi_dev->physical_node_lock); list_for_each_entry(entry, &acpi_dev->physical_node_list, node) @@ -316,9 +309,10 @@ int acpi_unbind_one(struct device *dev) acpi_physnode_link_name(physnode_name, entry->node_id); sysfs_remove_link(&acpi_dev->dev.kobj, physnode_name); sysfs_remove_link(&dev->kobj, "firmware_node"); - ACPI_HANDLE_SET(dev, NULL); - /* acpi_bind_one() increase refcnt by one. */ + ACPI_COMPANION_SET(dev, NULL); + /* Drop references taken by acpi_bind_one(). */ put_device(dev); + put_device(&acpi_dev->dev); kfree(entry); break; } @@ -328,6 +322,15 @@ 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); diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h index 20f423337e1f..a29739c0ba79 100644 --- a/drivers/acpi/internal.h +++ b/drivers/acpi/internal.h @@ -26,11 +26,6 @@ acpi_status acpi_os_initialize1(void); int init_acpi_device_notify(void); int acpi_scan_init(void); -#ifdef CONFIG_ACPI_PCI_SLOT -void acpi_pci_slot_init(void); -#else -static inline void acpi_pci_slot_init(void) { } -#endif void acpi_pci_root_init(void); void acpi_pci_link_init(void); void acpi_pci_root_hp_init(void); @@ -92,6 +87,7 @@ 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_unbind_one(struct device *dev); +void acpi_bus_device_eject(void *data, u32 ost_src); /* -------------------------------------------------------------------------- Power Resource @@ -169,9 +165,7 @@ int acpi_create_platform_device(struct acpi_device *adev, Video -------------------------------------------------------------------------- */ #if defined(CONFIG_ACPI_VIDEO) || defined(CONFIG_ACPI_VIDEO_MODULE) -bool acpi_video_backlight_quirks(void); -#else -static inline bool acpi_video_backlight_quirks(void) { return false; } +bool acpi_osi_is_win8(void); #endif #endif /* _ACPI_INTERNAL_H_ */ diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c index 2e82e5d76930..a2343a1d9e0b 100644 --- a/drivers/acpi/numa.c +++ b/drivers/acpi/numa.c @@ -73,7 +73,7 @@ int acpi_map_pxm_to_node(int pxm) { int node = pxm_to_node_map[pxm]; - if (node < 0) { + if (node == NUMA_NO_NODE) { if (nodes_weight(nodes_found_map) >= MAX_NUMNODES) return NUMA_NO_NODE; node = first_unset_node(nodes_found_map); @@ -334,7 +334,7 @@ int acpi_get_pxm(acpi_handle h) int acpi_get_node(acpi_handle *handle) { - int pxm, node = -1; + int pxm, node = NUMA_NO_NODE; pxm = acpi_get_pxm(handle); if (pxm >= 0 && pxm < MAX_PXM_DOMAINS) diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c index e5f416c7f66e..54a20ff4b864 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -61,7 +61,6 @@ struct acpi_os_dpc { acpi_osd_exec_callback function; void *context; struct work_struct work; - int wait; }; #ifdef CONFIG_ACPI_CUSTOM_DSDT @@ -569,8 +568,10 @@ static const char * const table_sigs[] = { #define ACPI_HEADER_SIZE sizeof(struct acpi_table_header) -/* Must not increase 10 or needs code modification below */ -#define ACPI_OVERRIDE_TABLES 10 +#define ACPI_OVERRIDE_TABLES 64 +static struct cpio_data __initdata acpi_initrd_files[ACPI_OVERRIDE_TABLES]; + +#define MAP_CHUNK_SIZE (NR_FIX_BTMAPS << PAGE_SHIFT) void __init acpi_initrd_override(void *data, size_t size) { @@ -579,8 +580,6 @@ void __init acpi_initrd_override(void *data, size_t size) struct acpi_table_header *table; char cpio_path[32] = "kernel/firmware/acpi/"; struct cpio_data file; - struct cpio_data early_initrd_files[ACPI_OVERRIDE_TABLES]; - char *p; if (data == NULL || size == 0) return; @@ -625,8 +624,8 @@ void __init acpi_initrd_override(void *data, size_t size) table->signature, cpio_path, file.name, table->length); all_tables_size += table->length; - early_initrd_files[table_nr].data = file.data; - early_initrd_files[table_nr].size = file.size; + acpi_initrd_files[table_nr].data = file.data; + acpi_initrd_files[table_nr].size = file.size; table_nr++; } if (table_nr == 0) @@ -652,14 +651,34 @@ void __init acpi_initrd_override(void *data, size_t size) memblock_reserve(acpi_tables_addr, all_tables_size); arch_reserve_mem_area(acpi_tables_addr, all_tables_size); - p = early_ioremap(acpi_tables_addr, all_tables_size); - + /* + * early_ioremap only can remap 256k one time. If we map all + * tables one time, we will hit the limit. Need to map chunks + * one by one during copying the same as that in relocate_initrd(). + */ for (no = 0; no < table_nr; no++) { - memcpy(p + total_offset, early_initrd_files[no].data, - early_initrd_files[no].size); - total_offset += early_initrd_files[no].size; + unsigned char *src_p = acpi_initrd_files[no].data; + phys_addr_t size = acpi_initrd_files[no].size; + phys_addr_t dest_addr = acpi_tables_addr + total_offset; + phys_addr_t slop, clen; + char *dest_p; + + total_offset += size; + + while (size) { + slop = dest_addr & ~PAGE_MASK; + clen = size; + if (clen > MAP_CHUNK_SIZE - slop) + clen = MAP_CHUNK_SIZE - slop; + dest_p = early_ioremap(dest_addr & PAGE_MASK, + clen + slop); + memcpy(dest_p + slop, src_p, clen); + early_iounmap(dest_p, clen + slop); + src_p += clen; + dest_addr += clen; + size -= clen; + } } - early_iounmap(p, all_tables_size); } #endif /* CONFIG_ACPI_INITRD_TABLE_OVERRIDE */ @@ -820,7 +839,7 @@ acpi_status acpi_os_remove_interrupt_handler(u32 irq, acpi_osd_handler handler) void acpi_os_sleep(u64 ms) { - schedule_timeout_interruptible(msecs_to_jiffies(ms)); + msleep(ms); } void acpi_os_stall(u32 us) @@ -1067,9 +1086,6 @@ static void acpi_os_execute_deferred(struct work_struct *work) { struct acpi_os_dpc *dpc = container_of(work, struct acpi_os_dpc, work); - if (dpc->wait) - acpi_os_wait_events_complete(); - dpc->function(dpc->context); kfree(dpc); } @@ -1089,8 +1105,8 @@ static void acpi_os_execute_deferred(struct work_struct *work) * ******************************************************************************/ -static acpi_status __acpi_os_execute(acpi_execute_type type, - acpi_osd_exec_callback function, void *context, int hp) +acpi_status acpi_os_execute(acpi_execute_type type, + acpi_osd_exec_callback function, void *context) { acpi_status status = AE_OK; struct acpi_os_dpc *dpc; @@ -1117,20 +1133,11 @@ static acpi_status __acpi_os_execute(acpi_execute_type type, dpc->context = context; /* - * We can't run hotplug code in keventd_wq/kacpid_wq/kacpid_notify_wq - * because the hotplug code may call driver .remove() functions, - * which invoke flush_scheduled_work/acpi_os_wait_events_complete - * to flush these workqueues. - * * To prevent lockdep from complaining unnecessarily, make sure that * there is a different static lockdep key for each workqueue by using * INIT_WORK() for each of them separately. */ - if (hp) { - queue = kacpi_hotplug_wq; - dpc->wait = 1; - INIT_WORK(&dpc->work, acpi_os_execute_deferred); - } else if (type == OSL_NOTIFY_HANDLER) { + if (type == OSL_NOTIFY_HANDLER) { queue = kacpi_notify_wq; INIT_WORK(&dpc->work, acpi_os_execute_deferred); } else { @@ -1155,28 +1162,59 @@ static acpi_status __acpi_os_execute(acpi_execute_type type, } return status; } +EXPORT_SYMBOL(acpi_os_execute); -acpi_status acpi_os_execute(acpi_execute_type type, - acpi_osd_exec_callback function, void *context) +void acpi_os_wait_events_complete(void) { - return __acpi_os_execute(type, function, context, 0); + flush_workqueue(kacpid_wq); + flush_workqueue(kacpi_notify_wq); } -EXPORT_SYMBOL(acpi_os_execute); -acpi_status acpi_os_hotplug_execute(acpi_osd_exec_callback function, - void *context) +struct acpi_hp_work { + struct work_struct work; + acpi_hp_callback func; + void *data; + u32 src; +}; + +static void acpi_hotplug_work_fn(struct work_struct *work) { - return __acpi_os_execute(0, function, context, 1); + struct acpi_hp_work *hpw = container_of(work, struct acpi_hp_work, work); + + acpi_os_wait_events_complete(); + hpw->func(hpw->data, hpw->src); + kfree(hpw); } -EXPORT_SYMBOL(acpi_os_hotplug_execute); -void acpi_os_wait_events_complete(void) +acpi_status acpi_hotplug_execute(acpi_hp_callback func, void *data, u32 src) { - flush_workqueue(kacpid_wq); - flush_workqueue(kacpi_notify_wq); + struct acpi_hp_work *hpw; + + ACPI_DEBUG_PRINT((ACPI_DB_EXEC, + "Scheduling function [%p(%p, %u)] for deferred execution.\n", + func, data, src)); + + hpw = kmalloc(sizeof(*hpw), GFP_KERNEL); + if (!hpw) + return AE_NO_MEMORY; + + INIT_WORK(&hpw->work, acpi_hotplug_work_fn); + hpw->func = func; + hpw->data = data; + hpw->src = src; + /* + * We can't run hotplug code in kacpid_wq/kacpid_notify_wq etc., because + * the hotplug code may call driver .remove() functions, which may + * invoke flush_scheduled_work()/acpi_os_wait_events_complete() to flush + * these workqueues. + */ + if (!queue_work(kacpi_hotplug_wq, &hpw->work)) { + kfree(hpw); + return AE_ERROR; + } + return AE_OK; } -EXPORT_SYMBOL(acpi_os_wait_events_complete); acpi_status acpi_os_create_semaphore(u32 max_units, u32 initial_units, acpi_handle * handle) @@ -1335,7 +1373,7 @@ static int __init acpi_os_name_setup(char *str) if (!str || !*str) return 0; - for (; count-- && str && *str; str++) { + for (; count-- && *str; str++) { if (isalnum(*str) || *str == ' ' || *str == ':') *p++ = *str; else if (*str == '\'' || *str == '"') @@ -1825,25 +1863,3 @@ void acpi_os_set_prepare_extended_sleep(int (*func)(u8 sleep_state, { __acpi_os_prepare_extended_sleep = func; } - - -void alloc_acpi_hp_work(acpi_handle handle, u32 type, void *context, - void (*func)(struct work_struct *work)) -{ - struct acpi_hp_work *hp_work; - int ret; - - hp_work = kmalloc(sizeof(*hp_work), GFP_KERNEL); - if (!hp_work) - return; - - hp_work->handle = handle; - hp_work->type = type; - hp_work->context = context; - - INIT_WORK(&hp_work->work, func); - ret = queue_work(kacpi_hotplug_wq, &hp_work->work); - if (!ret) - kfree(hp_work); -} -EXPORT_SYMBOL_GPL(alloc_acpi_hp_work); diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c index d3874f425653..20360e480bd8 100644 --- a/drivers/acpi/pci_root.c +++ b/drivers/acpi/pci_root.c @@ -39,6 +39,8 @@ #include <acpi/acpi_drivers.h> #include <acpi/apei.h> +#include "internal.h" + #define PREFIX "ACPI: " #define _COMPONENT ACPI_PCI_COMPONENT @@ -49,10 +51,10 @@ 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); -#define ACPI_PCIE_REQ_SUPPORT (OSC_EXT_PCI_CONFIG_SUPPORT \ - | OSC_ACTIVE_STATE_PWR_SUPPORT \ - | OSC_CLOCK_PWR_CAPABILITY_SUPPORT \ - | OSC_MSI_SUPPORT) +#define ACPI_PCIE_REQ_SUPPORT (OSC_PCI_EXT_CONFIG_SUPPORT \ + | OSC_PCI_ASPM_SUPPORT \ + | OSC_PCI_CLOCK_PM_SUPPORT \ + | OSC_PCI_MSI_SUPPORT) static const struct acpi_device_id root_device_ids[] = { {"PNP0A03", 0}, @@ -63,6 +65,9 @@ static struct acpi_scan_handler pci_root_handler = { .ids = root_device_ids, .attach = acpi_pci_root_add, .detach = acpi_pci_root_remove, + .hotplug = { + .ignore = true, + }, }; static DEFINE_MUTEX(osc_lock); @@ -127,6 +132,55 @@ static acpi_status try_get_root_bridge_busnr(acpi_handle handle, return AE_OK; } +struct pci_osc_bit_struct { + u32 bit; + char *desc; +}; + +static struct pci_osc_bit_struct pci_osc_support_bit[] = { + { OSC_PCI_EXT_CONFIG_SUPPORT, "ExtendedConfig" }, + { OSC_PCI_ASPM_SUPPORT, "ASPM" }, + { OSC_PCI_CLOCK_PM_SUPPORT, "ClockPM" }, + { OSC_PCI_SEGMENT_GROUPS_SUPPORT, "Segments" }, + { OSC_PCI_MSI_SUPPORT, "MSI" }, +}; + +static struct pci_osc_bit_struct pci_osc_control_bit[] = { + { OSC_PCI_EXPRESS_NATIVE_HP_CONTROL, "PCIeHotplug" }, + { OSC_PCI_SHPC_NATIVE_HP_CONTROL, "SHPCHotplug" }, + { OSC_PCI_EXPRESS_PME_CONTROL, "PME" }, + { OSC_PCI_EXPRESS_AER_CONTROL, "AER" }, + { OSC_PCI_EXPRESS_CAPABILITY_CONTROL, "PCIeCapability" }, +}; + +static void decode_osc_bits(struct acpi_pci_root *root, char *msg, u32 word, + struct pci_osc_bit_struct *table, int size) +{ + char buf[80]; + int i, len = 0; + struct pci_osc_bit_struct *entry; + + buf[0] = '\0'; + for (i = 0, entry = table; i < size; i++, entry++) + if (word & entry->bit) + len += snprintf(buf + len, sizeof(buf) - len, "%s%s", + len ? " " : "", entry->desc); + + dev_info(&root->device->dev, "_OSC: %s [%s]\n", msg, buf); +} + +static void decode_osc_support(struct acpi_pci_root *root, char *msg, u32 word) +{ + decode_osc_bits(root, msg, word, pci_osc_support_bit, + ARRAY_SIZE(pci_osc_support_bit)); +} + +static void decode_osc_control(struct acpi_pci_root *root, char *msg, u32 word) +{ + decode_osc_bits(root, msg, word, pci_osc_control_bit, + ARRAY_SIZE(pci_osc_control_bit)); +} + static u8 pci_osc_uuid_str[] = "33DB4D5B-1FF7-401C-9657-7441C03DD766"; static acpi_status acpi_pci_run_osc(acpi_handle handle, @@ -158,14 +212,14 @@ static acpi_status acpi_pci_query_osc(struct acpi_pci_root *root, support &= OSC_PCI_SUPPORT_MASKS; support |= root->osc_support_set; - capbuf[OSC_QUERY_TYPE] = OSC_QUERY_ENABLE; - capbuf[OSC_SUPPORT_TYPE] = support; + capbuf[OSC_QUERY_DWORD] = OSC_QUERY_ENABLE; + capbuf[OSC_SUPPORT_DWORD] = support; if (control) { *control &= OSC_PCI_CONTROL_MASKS; - capbuf[OSC_CONTROL_TYPE] = *control | root->osc_control_set; + capbuf[OSC_CONTROL_DWORD] = *control | root->osc_control_set; } else { /* Run _OSC query only with existing controls. */ - capbuf[OSC_CONTROL_TYPE] = root->osc_control_set; + capbuf[OSC_CONTROL_DWORD] = root->osc_control_set; } status = acpi_pci_run_osc(root->device->handle, capbuf, &result); @@ -180,11 +234,7 @@ static acpi_status acpi_pci_query_osc(struct acpi_pci_root *root, static acpi_status acpi_pci_osc_support(struct acpi_pci_root *root, u32 flags) { acpi_status status; - acpi_handle tmp; - status = acpi_get_handle(root->device->handle, "_OSC", &tmp); - if (ACPI_FAILURE(status)) - return status; mutex_lock(&osc_lock); status = acpi_pci_query_osc(root, flags, NULL); mutex_unlock(&osc_lock); @@ -316,9 +366,8 @@ EXPORT_SYMBOL_GPL(acpi_get_pci_dev); acpi_status acpi_pci_osc_control_set(acpi_handle handle, u32 *mask, u32 req) { struct acpi_pci_root *root; - acpi_status status; + acpi_status status = AE_OK; u32 ctrl, capbuf[3]; - acpi_handle tmp; if (!mask) return AE_BAD_PARAMETER; @@ -331,10 +380,6 @@ acpi_status acpi_pci_osc_control_set(acpi_handle handle, u32 *mask, u32 req) if (!root) return AE_NOT_EXIST; - status = acpi_get_handle(handle, "_OSC", &tmp); - if (ACPI_FAILURE(status)) - return status; - mutex_lock(&osc_lock); *mask = ctrl | root->osc_control_set; @@ -349,17 +394,21 @@ acpi_status acpi_pci_osc_control_set(acpi_handle handle, u32 *mask, u32 req) goto out; if (ctrl == *mask) break; + decode_osc_control(root, "platform does not support", + ctrl & ~(*mask)); ctrl = *mask; } if ((ctrl & req) != req) { + decode_osc_control(root, "not requesting control; platform does not support", + req & ~(ctrl)); status = AE_SUPPORT; goto out; } - capbuf[OSC_QUERY_TYPE] = 0; - capbuf[OSC_SUPPORT_TYPE] = root->osc_support_set; - capbuf[OSC_CONTROL_TYPE] = ctrl; + capbuf[OSC_QUERY_DWORD] = 0; + capbuf[OSC_SUPPORT_DWORD] = root->osc_support_set; + capbuf[OSC_CONTROL_DWORD] = ctrl; status = acpi_pci_run_osc(handle, capbuf, mask); if (ACPI_SUCCESS(status)) root->osc_control_set = *mask; @@ -369,6 +418,87 @@ out: } EXPORT_SYMBOL(acpi_pci_osc_control_set); +static void negotiate_os_control(struct acpi_pci_root *root, int *no_aspm, + int *clear_aspm) +{ + u32 support, control, requested; + acpi_status status; + struct acpi_device *device = root->device; + acpi_handle handle = device->handle; + + /* + * All supported architectures that use ACPI have support for + * PCI domains, so we indicate this in _OSC support capabilities. + */ + support = OSC_PCI_SEGMENT_GROUPS_SUPPORT; + if (pci_ext_cfg_avail()) + support |= OSC_PCI_EXT_CONFIG_SUPPORT; + if (pcie_aspm_support_enabled()) + support |= OSC_PCI_ASPM_SUPPORT | OSC_PCI_CLOCK_PM_SUPPORT; + if (pci_msi_enabled()) + support |= OSC_PCI_MSI_SUPPORT; + + decode_osc_support(root, "OS supports", support); + status = acpi_pci_osc_support(root, support); + if (ACPI_FAILURE(status)) { + dev_info(&device->dev, "_OSC failed (%s); disabling ASPM\n", + acpi_format_exception(status)); + *no_aspm = 1; + return; + } + + if (pcie_ports_disabled) { + dev_info(&device->dev, "PCIe port services disabled; not requesting _OSC control\n"); + return; + } + + if ((support & ACPI_PCIE_REQ_SUPPORT) != ACPI_PCIE_REQ_SUPPORT) { + decode_osc_support(root, "not requesting OS control; OS requires", + ACPI_PCIE_REQ_SUPPORT); + return; + } + + control = OSC_PCI_EXPRESS_CAPABILITY_CONTROL + | OSC_PCI_EXPRESS_NATIVE_HP_CONTROL + | OSC_PCI_EXPRESS_PME_CONTROL; + + if (pci_aer_available()) { + if (aer_acpi_firmware_first()) + dev_info(&device->dev, + "PCIe AER handled by firmware\n"); + else + control |= OSC_PCI_EXPRESS_AER_CONTROL; + } + + requested = control; + status = acpi_pci_osc_control_set(handle, &control, + OSC_PCI_EXPRESS_CAPABILITY_CONTROL); + if (ACPI_SUCCESS(status)) { + decode_osc_control(root, "OS now controls", control); + if (acpi_gbl_FADT.boot_flags & ACPI_FADT_NO_ASPM) { + /* + * We have ASPM control, but the FADT indicates + * that it's unsupported. Clear it. + */ + *clear_aspm = 1; + } + } else { + decode_osc_control(root, "OS requested", requested); + decode_osc_control(root, "platform willing to grant", control); + dev_info(&device->dev, "_OSC failed (%s); disabling ASPM\n", + acpi_format_exception(status)); + + /* + * We want to disable ASPM here, but aspm_disabled + * needs to remain in its state from boot so that we + * properly handle PCIe 1.1 devices. So we set this + * flag here, to defer the action until after the ACPI + * root scan. + */ + *no_aspm = 1; + } +} + static int acpi_pci_root_add(struct acpi_device *device, const struct acpi_device_id *not_used) { @@ -376,9 +506,8 @@ static int acpi_pci_root_add(struct acpi_device *device, acpi_status status; int result; struct acpi_pci_root *root; - u32 flags, base_flags; acpi_handle handle = device->handle; - bool no_aspm = false, clear_aspm = false; + int no_aspm = 0, clear_aspm = 0; root = kzalloc(sizeof(struct acpi_pci_root), GFP_KERNEL); if (!root) @@ -431,81 +560,7 @@ static int acpi_pci_root_add(struct acpi_device *device, root->mcfg_addr = acpi_pci_root_get_mcfg_addr(handle); - /* - * All supported architectures that use ACPI have support for - * PCI domains, so we indicate this in _OSC support capabilities. - */ - flags = base_flags = OSC_PCI_SEGMENT_GROUPS_SUPPORT; - acpi_pci_osc_support(root, flags); - - if (pci_ext_cfg_avail()) - flags |= OSC_EXT_PCI_CONFIG_SUPPORT; - if (pcie_aspm_support_enabled()) { - flags |= OSC_ACTIVE_STATE_PWR_SUPPORT | - OSC_CLOCK_PWR_CAPABILITY_SUPPORT; - } - if (pci_msi_enabled()) - flags |= OSC_MSI_SUPPORT; - if (flags != base_flags) { - status = acpi_pci_osc_support(root, flags); - if (ACPI_FAILURE(status)) { - dev_info(&device->dev, "ACPI _OSC support " - "notification failed, disabling PCIe ASPM\n"); - no_aspm = true; - flags = base_flags; - } - } - - if (!pcie_ports_disabled - && (flags & ACPI_PCIE_REQ_SUPPORT) == ACPI_PCIE_REQ_SUPPORT) { - flags = OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL - | OSC_PCI_EXPRESS_NATIVE_HP_CONTROL - | OSC_PCI_EXPRESS_PME_CONTROL; - - if (pci_aer_available()) { - if (aer_acpi_firmware_first()) - dev_dbg(&device->dev, - "PCIe errors handled by BIOS.\n"); - else - flags |= OSC_PCI_EXPRESS_AER_CONTROL; - } - - dev_info(&device->dev, - "Requesting ACPI _OSC control (0x%02x)\n", flags); - - status = acpi_pci_osc_control_set(handle, &flags, - OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL); - if (ACPI_SUCCESS(status)) { - dev_info(&device->dev, - "ACPI _OSC control (0x%02x) granted\n", flags); - if (acpi_gbl_FADT.boot_flags & ACPI_FADT_NO_ASPM) { - /* - * We have ASPM control, but the FADT indicates - * that it's unsupported. Clear it. - */ - clear_aspm = true; - } - } else { - dev_info(&device->dev, - "ACPI _OSC request failed (%s), " - "returned control mask: 0x%02x\n", - acpi_format_exception(status), flags); - dev_info(&device->dev, - "ACPI _OSC control for PCIe not granted, disabling ASPM\n"); - /* - * We want to disable ASPM here, but aspm_disabled - * needs to remain in its state from boot so that we - * properly handle PCIe 1.1 devices. So we set this - * flag here, to defer the action until after the ACPI - * root scan. - */ - no_aspm = true; - } - } else { - dev_info(&device->dev, - "Unable to request _OSC control " - "(_OSC support mask: 0x%02x)\n", flags); - } + negotiate_os_control(root, &no_aspm, &clear_aspm); /* * TBD: Need PCI interface for enumeration/configuration of roots. @@ -523,6 +578,7 @@ static int acpi_pci_root_add(struct acpi_device *device, dev_err(&device->dev, "Bus %04x:%02x not present in PCI namespace\n", root->segment, (unsigned int)root->secondary.start); + device->driver_data = NULL; result = -ENODEV; goto end; } @@ -590,39 +646,10 @@ static void handle_root_bridge_insertion(acpi_handle handle) acpi_handle_err(handle, "cannot add bridge to acpi list\n"); } -static void handle_root_bridge_removal(struct acpi_device *device) -{ - acpi_status status; - struct acpi_eject_event *ej_event; - - ej_event = kmalloc(sizeof(*ej_event), GFP_KERNEL); - if (!ej_event) { - /* Inform firmware the hot-remove operation has error */ - (void) acpi_evaluate_hotplug_ost(device->handle, - ACPI_NOTIFY_EJECT_REQUEST, - ACPI_OST_SC_NON_SPECIFIC_FAILURE, - NULL); - return; - } - - ej_event->device = device; - ej_event->event = ACPI_NOTIFY_EJECT_REQUEST; - - status = acpi_os_hotplug_execute(acpi_bus_hot_remove_device, ej_event); - if (ACPI_FAILURE(status)) - kfree(ej_event); -} - -static void _handle_hotplug_event_root(struct work_struct *work) +static void hotplug_event_root(void *data, u32 type) { + acpi_handle handle = data; struct acpi_pci_root *root; - struct acpi_hp_work *hp_work; - acpi_handle handle; - u32 type; - - hp_work = container_of(work, struct acpi_hp_work, work); - handle = hp_work->handle; - type = hp_work->type; acpi_scan_lock_acquire(); @@ -652,9 +679,15 @@ static void _handle_hotplug_event_root(struct work_struct *work) /* request device eject */ acpi_handle_printk(KERN_DEBUG, handle, "Device eject notify on %s\n", __func__); - if (root) - handle_root_bridge_removal(root->device); - break; + 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", @@ -663,14 +696,12 @@ static void _handle_hotplug_event_root(struct work_struct *work) } acpi_scan_lock_release(); - kfree(hp_work); /* allocated in handle_hotplug_event_bridge */ } static void handle_hotplug_event_root(acpi_handle handle, u32 type, void *context) { - alloc_acpi_hp_work(handle, type, context, - _handle_hotplug_event_root); + acpi_hotplug_execute(hotplug_event_root, handle, type); } static acpi_status __init diff --git a/drivers/acpi/power.c b/drivers/acpi/power.c index 0dbe5cdf3396..c2ad391d8041 100644 --- a/drivers/acpi/power.c +++ b/drivers/acpi/power.c @@ -59,16 +59,9 @@ ACPI_MODULE_NAME("power"); #define ACPI_POWER_RESOURCE_STATE_ON 0x01 #define ACPI_POWER_RESOURCE_STATE_UNKNOWN 0xFF -struct acpi_power_dependent_device { - struct list_head node; - struct acpi_device *adev; - struct work_struct work; -}; - struct acpi_power_resource { struct acpi_device device; struct list_head list_node; - struct list_head dependent; char *name; u32 system_level; u32 order; @@ -233,32 +226,6 @@ static int acpi_power_get_list_state(struct list_head *list, int *state) return 0; } -static void acpi_power_resume_dependent(struct work_struct *work) -{ - struct acpi_power_dependent_device *dep; - struct acpi_device_physical_node *pn; - struct acpi_device *adev; - int state; - - dep = container_of(work, struct acpi_power_dependent_device, work); - adev = dep->adev; - if (acpi_power_get_inferred_state(adev, &state)) - return; - - if (state > ACPI_STATE_D0) - return; - - mutex_lock(&adev->physical_node_lock); - - list_for_each_entry(pn, &adev->physical_node_list, node) - pm_request_resume(pn->dev); - - list_for_each_entry(pn, &adev->power_dependent, node) - pm_request_resume(pn->dev); - - mutex_unlock(&adev->physical_node_lock); -} - static int __acpi_power_on(struct acpi_power_resource *resource) { acpi_status status = AE_OK; @@ -283,14 +250,8 @@ static int acpi_power_on_unlocked(struct acpi_power_resource *resource) resource->name)); } else { result = __acpi_power_on(resource); - if (result) { + if (result) resource->ref_count--; - } else { - struct acpi_power_dependent_device *dep; - - list_for_each_entry(dep, &resource->dependent, node) - schedule_work(&dep->work); - } } return result; } @@ -390,52 +351,6 @@ static int acpi_power_on_list(struct list_head *list) return result; } -static void acpi_power_add_dependent(struct acpi_power_resource *resource, - struct acpi_device *adev) -{ - struct acpi_power_dependent_device *dep; - - mutex_lock(&resource->resource_lock); - - list_for_each_entry(dep, &resource->dependent, node) - if (dep->adev == adev) - goto out; - - dep = kzalloc(sizeof(*dep), GFP_KERNEL); - if (!dep) - goto out; - - dep->adev = adev; - INIT_WORK(&dep->work, acpi_power_resume_dependent); - list_add_tail(&dep->node, &resource->dependent); - - out: - mutex_unlock(&resource->resource_lock); -} - -static void acpi_power_remove_dependent(struct acpi_power_resource *resource, - struct acpi_device *adev) -{ - struct acpi_power_dependent_device *dep; - struct work_struct *work = NULL; - - mutex_lock(&resource->resource_lock); - - list_for_each_entry(dep, &resource->dependent, node) - if (dep->adev == adev) { - list_del(&dep->node); - work = &dep->work; - break; - } - - mutex_unlock(&resource->resource_lock); - - if (work) { - cancel_work_sync(work); - kfree(dep); - } -} - static struct attribute *attrs[] = { NULL, }; @@ -524,8 +439,6 @@ static void acpi_power_expose_hide(struct acpi_device *adev, void acpi_power_add_remove_device(struct acpi_device *adev, bool add) { - struct acpi_device_power_state *ps; - struct acpi_power_resource_entry *entry; int state; if (adev->wakeup.flags.valid) @@ -535,16 +448,6 @@ void acpi_power_add_remove_device(struct acpi_device *adev, bool add) if (!adev->power.flags.power_resources) return; - ps = &adev->power.states[ACPI_STATE_D0]; - list_for_each_entry(entry, &ps->resources, node) { - struct acpi_power_resource *resource = entry->resource; - - if (add) - acpi_power_add_dependent(resource, adev); - else - acpi_power_remove_dependent(resource, adev); - } - for (state = ACPI_STATE_D0; state <= ACPI_STATE_D3_HOT; state++) acpi_power_expose_hide(adev, &adev->power.states[state].resources, @@ -882,7 +785,6 @@ int acpi_add_power_resource(acpi_handle handle) acpi_init_device_object(device, handle, ACPI_BUS_TYPE_POWER, ACPI_STA_DEFAULT); mutex_init(&resource->resource_lock); - INIT_LIST_HEAD(&resource->dependent); INIT_LIST_HEAD(&resource->list_node); resource->name = device->pnp.bus_id; strcpy(acpi_device_name(device), ACPI_POWER_DEVICE_NAME); @@ -936,8 +838,10 @@ void acpi_resume_power_resources(void) mutex_lock(&resource->resource_lock); result = acpi_power_get_state(resource->device.handle, &state); - if (result) + if (result) { + mutex_unlock(&resource->resource_lock); continue; + } if (state == ACPI_POWER_RESOURCE_STATE_OFF && resource->ref_count) { diff --git a/drivers/acpi/proc.c b/drivers/acpi/proc.c index 04a13784dd20..6a5b152ad4d0 100644 --- a/drivers/acpi/proc.c +++ b/drivers/acpi/proc.c @@ -8,289 +8,17 @@ #include <acpi/acpi_bus.h> #include <acpi/acpi_drivers.h> -#ifdef CONFIG_X86 -#include <linux/mc146818rtc.h> -#endif - #include "sleep.h" #define _COMPONENT ACPI_SYSTEM_COMPONENT /* * this file provides support for: - * /proc/acpi/alarm * /proc/acpi/wakeup */ ACPI_MODULE_NAME("sleep") -#if defined(CONFIG_RTC_DRV_CMOS) || defined(CONFIG_RTC_DRV_CMOS_MODULE) || !defined(CONFIG_X86) -/* use /sys/class/rtc/rtcX/wakealarm instead; it's not ACPI-specific */ -#else -#define HAVE_ACPI_LEGACY_ALARM -#endif - -#ifdef HAVE_ACPI_LEGACY_ALARM - -static u32 cmos_bcd_read(int offset, int rtc_control); - -static int acpi_system_alarm_seq_show(struct seq_file *seq, void *offset) -{ - u32 sec, min, hr; - u32 day, mo, yr, cent = 0; - u32 today = 0; - unsigned char rtc_control = 0; - unsigned long flags; - - spin_lock_irqsave(&rtc_lock, flags); - - rtc_control = CMOS_READ(RTC_CONTROL); - sec = cmos_bcd_read(RTC_SECONDS_ALARM, rtc_control); - min = cmos_bcd_read(RTC_MINUTES_ALARM, rtc_control); - hr = cmos_bcd_read(RTC_HOURS_ALARM, rtc_control); - - /* If we ever get an FACP with proper values... */ - if (acpi_gbl_FADT.day_alarm) { - /* ACPI spec: only low 6 its should be cared */ - day = CMOS_READ(acpi_gbl_FADT.day_alarm) & 0x3F; - if (!(rtc_control & RTC_DM_BINARY) || RTC_ALWAYS_BCD) - day = bcd2bin(day); - } else - day = cmos_bcd_read(RTC_DAY_OF_MONTH, rtc_control); - if (acpi_gbl_FADT.month_alarm) - mo = cmos_bcd_read(acpi_gbl_FADT.month_alarm, rtc_control); - else { - mo = cmos_bcd_read(RTC_MONTH, rtc_control); - today = cmos_bcd_read(RTC_DAY_OF_MONTH, rtc_control); - } - if (acpi_gbl_FADT.century) - cent = cmos_bcd_read(acpi_gbl_FADT.century, rtc_control); - - yr = cmos_bcd_read(RTC_YEAR, rtc_control); - - spin_unlock_irqrestore(&rtc_lock, flags); - - /* we're trusting the FADT (see above) */ - if (!acpi_gbl_FADT.century) - /* If we're not trusting the FADT, we should at least make it - * right for _this_ century... ehm, what is _this_ century? - * - * TBD: - * ASAP: find piece of code in the kernel, e.g. star tracker driver, - * which we can trust to determine the century correctly. Atom - * watch driver would be nice, too... - * - * if that has not happened, change for first release in 2050: - * if (yr<50) - * yr += 2100; - * else - * yr += 2000; // current line of code - * - * if that has not happened either, please do on 2099/12/31:23:59:59 - * s/2000/2100 - * - */ - yr += 2000; - else - yr += cent * 100; - - /* - * Show correct dates for alarms up to a month into the future. - * This solves issues for nearly all situations with the common - * 30-day alarm clocks in PC hardware. - */ - if (day < today) { - if (mo < 12) { - mo += 1; - } else { - mo = 1; - yr += 1; - } - } - - seq_printf(seq, "%4.4u-", yr); - (mo > 12) ? seq_puts(seq, "**-") : seq_printf(seq, "%2.2u-", mo); - (day > 31) ? seq_puts(seq, "** ") : seq_printf(seq, "%2.2u ", day); - (hr > 23) ? seq_puts(seq, "**:") : seq_printf(seq, "%2.2u:", hr); - (min > 59) ? seq_puts(seq, "**:") : seq_printf(seq, "%2.2u:", min); - (sec > 59) ? seq_puts(seq, "**\n") : seq_printf(seq, "%2.2u\n", sec); - - return 0; -} - -static int acpi_system_alarm_open_fs(struct inode *inode, struct file *file) -{ - return single_open(file, acpi_system_alarm_seq_show, PDE_DATA(inode)); -} - -static int get_date_field(char **p, u32 * value) -{ - char *next = NULL; - char *string_end = NULL; - int result = -EINVAL; - - /* - * Try to find delimeter, only to insert null. The end of the - * string won't have one, but is still valid. - */ - if (*p == NULL) - return result; - - next = strpbrk(*p, "- :"); - if (next) - *next++ = '\0'; - - *value = simple_strtoul(*p, &string_end, 10); - - /* Signal success if we got a good digit */ - if (string_end != *p) - result = 0; - - if (next) - *p = next; - else - *p = NULL; - - return result; -} - -/* Read a possibly BCD register, always return binary */ -static u32 cmos_bcd_read(int offset, int rtc_control) -{ - u32 val = CMOS_READ(offset); - if (!(rtc_control & RTC_DM_BINARY) || RTC_ALWAYS_BCD) - val = bcd2bin(val); - return val; -} - -/* Write binary value into possibly BCD register */ -static void cmos_bcd_write(u32 val, int offset, int rtc_control) -{ - if (!(rtc_control & RTC_DM_BINARY) || RTC_ALWAYS_BCD) - val = bin2bcd(val); - CMOS_WRITE(val, offset); -} - -static ssize_t -acpi_system_write_alarm(struct file *file, - const char __user * buffer, size_t count, loff_t * ppos) -{ - int result = 0; - char alarm_string[30] = { '\0' }; - char *p = alarm_string; - u32 sec, min, hr, day, mo, yr; - int adjust = 0; - unsigned char rtc_control = 0; - - if (count > sizeof(alarm_string) - 1) - return -EINVAL; - - if (copy_from_user(alarm_string, buffer, count)) - return -EFAULT; - - alarm_string[count] = '\0'; - - /* check for time adjustment */ - if (alarm_string[0] == '+') { - p++; - adjust = 1; - } - - if ((result = get_date_field(&p, &yr))) - goto end; - if ((result = get_date_field(&p, &mo))) - goto end; - if ((result = get_date_field(&p, &day))) - goto end; - if ((result = get_date_field(&p, &hr))) - goto end; - if ((result = get_date_field(&p, &min))) - goto end; - if ((result = get_date_field(&p, &sec))) - goto end; - - spin_lock_irq(&rtc_lock); - - rtc_control = CMOS_READ(RTC_CONTROL); - - if (adjust) { - yr += cmos_bcd_read(RTC_YEAR, rtc_control); - mo += cmos_bcd_read(RTC_MONTH, rtc_control); - day += cmos_bcd_read(RTC_DAY_OF_MONTH, rtc_control); - hr += cmos_bcd_read(RTC_HOURS, rtc_control); - min += cmos_bcd_read(RTC_MINUTES, rtc_control); - sec += cmos_bcd_read(RTC_SECONDS, rtc_control); - } - - spin_unlock_irq(&rtc_lock); - - if (sec > 59) { - min += sec/60; - sec = sec%60; - } - if (min > 59) { - hr += min/60; - min = min%60; - } - if (hr > 23) { - day += hr/24; - hr = hr%24; - } - if (day > 31) { - mo += day/32; - day = day%32; - } - if (mo > 12) { - yr += mo/13; - mo = mo%13; - } - - spin_lock_irq(&rtc_lock); - /* - * Disable alarm interrupt before setting alarm timer or else - * when ACPI_EVENT_RTC is enabled, a spurious ACPI interrupt occurs - */ - rtc_control &= ~RTC_AIE; - CMOS_WRITE(rtc_control, RTC_CONTROL); - CMOS_READ(RTC_INTR_FLAGS); - - /* write the fields the rtc knows about */ - cmos_bcd_write(hr, RTC_HOURS_ALARM, rtc_control); - cmos_bcd_write(min, RTC_MINUTES_ALARM, rtc_control); - cmos_bcd_write(sec, RTC_SECONDS_ALARM, rtc_control); - - /* - * If the system supports an enhanced alarm it will have non-zero - * offsets into the CMOS RAM here -- which for some reason are pointing - * to the RTC area of memory. - */ - if (acpi_gbl_FADT.day_alarm) - cmos_bcd_write(day, acpi_gbl_FADT.day_alarm, rtc_control); - if (acpi_gbl_FADT.month_alarm) - cmos_bcd_write(mo, acpi_gbl_FADT.month_alarm, rtc_control); - if (acpi_gbl_FADT.century) { - if (adjust) - yr += cmos_bcd_read(acpi_gbl_FADT.century, rtc_control) * 100; - cmos_bcd_write(yr / 100, acpi_gbl_FADT.century, rtc_control); - } - /* enable the rtc alarm interrupt */ - rtc_control |= RTC_AIE; - CMOS_WRITE(rtc_control, RTC_CONTROL); - CMOS_READ(RTC_INTR_FLAGS); - - spin_unlock_irq(&rtc_lock); - - acpi_clear_event(ACPI_EVENT_RTC); - acpi_enable_event(ACPI_EVENT_RTC, 0); - - *ppos += count; - - result = 0; - end: - return result ? result : count; -} -#endif /* HAVE_ACPI_LEGACY_ALARM */ - static int acpi_system_wakeup_device_seq_show(struct seq_file *seq, void *offset) { @@ -417,41 +145,8 @@ static const struct file_operations acpi_system_wakeup_device_fops = { .release = single_release, }; -#ifdef HAVE_ACPI_LEGACY_ALARM -static const struct file_operations acpi_system_alarm_fops = { - .owner = THIS_MODULE, - .open = acpi_system_alarm_open_fs, - .read = seq_read, - .write = acpi_system_write_alarm, - .llseek = seq_lseek, - .release = single_release, -}; - -static u32 rtc_handler(void *context) -{ - acpi_clear_event(ACPI_EVENT_RTC); - acpi_disable_event(ACPI_EVENT_RTC, 0); - - return ACPI_INTERRUPT_HANDLED; -} -#endif /* HAVE_ACPI_LEGACY_ALARM */ - int __init acpi_sleep_proc_init(void) { -#ifdef HAVE_ACPI_LEGACY_ALARM - /* 'alarm' [R/W] */ - proc_create("alarm", S_IFREG | S_IRUGO | S_IWUSR, - acpi_root_dir, &acpi_system_alarm_fops); - - acpi_install_fixed_event_handler(ACPI_EVENT_RTC, rtc_handler, NULL); - /* - * Disable the RTC event after installing RTC handler. - * Only when RTC alarm is set will it be enabled. - */ - acpi_clear_event(ACPI_EVENT_RTC); - acpi_disable_event(ACPI_EVENT_RTC, 0); -#endif /* HAVE_ACPI_LEGACY_ALARM */ - /* 'wakeup device' [R/W] */ proc_create("wakeup", S_IFREG | S_IRUGO | S_IWUSR, acpi_root_dir, &acpi_system_wakeup_device_fops); diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c index cf34d903f4fb..b3171f30b319 100644 --- a/drivers/acpi/processor_core.c +++ b/drivers/acpi/processor_core.c @@ -162,16 +162,23 @@ exit: return apic_id; } -int acpi_get_cpuid(acpi_handle handle, int type, u32 acpi_id) +int acpi_get_apicid(acpi_handle handle, int type, u32 acpi_id) { -#ifdef CONFIG_SMP - int i; -#endif - int apic_id = -1; + int apic_id; apic_id = map_mat_entry(handle, type, acpi_id); if (apic_id == -1) apic_id = map_madt_entry(type, acpi_id); + + return apic_id; +} + +int acpi_map_cpuid(int apic_id, u32 acpi_id) +{ +#ifdef CONFIG_SMP + int i; +#endif + if (apic_id == -1) { /* * On UP processor, there is no _MAT or MADT table. @@ -211,6 +218,15 @@ int acpi_get_cpuid(acpi_handle handle, int type, u32 acpi_id) #endif return -1; } + +int acpi_get_cpuid(acpi_handle handle, int type, u32 acpi_id) +{ + int apic_id; + + apic_id = acpi_get_apicid(handle, type, acpi_id); + + return acpi_map_cpuid(apic_id, acpi_id); +} EXPORT_SYMBOL_GPL(acpi_get_cpuid); static bool __init processor_physically_present(acpi_handle handle) diff --git a/drivers/acpi/processor_driver.c b/drivers/acpi/processor_driver.c index e534ba66d5b8..146ab7e2b81d 100644 --- a/drivers/acpi/processor_driver.c +++ b/drivers/acpi/processor_driver.c @@ -153,8 +153,7 @@ static int acpi_cpu_soft_notify(struct notifier_block *nfb, return NOTIFY_OK; } -static struct notifier_block __refdata acpi_cpu_notifier = -{ +static struct notifier_block __refdata acpi_cpu_notifier = { .notifier_call = acpi_cpu_soft_notify, }; @@ -172,7 +171,6 @@ static int __acpi_processor_start(struct acpi_device *device) #ifdef CONFIG_CPU_FREQ acpi_processor_ppc_has_changed(pr, 0); - acpi_processor_load_module(pr); #endif acpi_processor_get_throttling_info(pr); diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c index f98dd00b51a9..644516d9bde6 100644 --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -119,17 +119,10 @@ static struct dmi_system_id processor_power_dmi_table[] = { */ static void acpi_safe_halt(void) { - current_thread_info()->status &= ~TS_POLLING; - /* - * TS_POLLING-cleared state must be visible before we - * test NEED_RESCHED: - */ - smp_mb(); - if (!need_resched()) { + if (!tif_need_resched()) { safe_halt(); local_irq_disable(); } - current_thread_info()->status |= TS_POLLING; } #ifdef ARCH_APICTIMER_STOPS_ON_C3 @@ -272,9 +265,6 @@ static void tsc_check_state(int state) { return; } static int acpi_processor_get_power_info_fadt(struct acpi_processor *pr) { - if (!pr) - return -EINVAL; - if (!pr->pblk) return -ENODEV; @@ -737,6 +727,11 @@ static int acpi_idle_enter_c1(struct cpuidle_device *dev, if (unlikely(!pr)) return -EINVAL; + if (cx->entry_method == ACPI_CSTATE_FFH) { + if (current_set_polling_and_test()) + return -EINVAL; + } + lapic_timer_state_broadcast(pr, cx, 1); acpi_idle_do_entry(cx); @@ -790,18 +785,9 @@ static int acpi_idle_enter_simple(struct cpuidle_device *dev, if (unlikely(!pr)) return -EINVAL; - if (cx->entry_method != ACPI_CSTATE_FFH) { - current_thread_info()->status &= ~TS_POLLING; - /* - * TS_POLLING-cleared state must be visible before we test - * NEED_RESCHED: - */ - smp_mb(); - - if (unlikely(need_resched())) { - current_thread_info()->status |= TS_POLLING; + if (cx->entry_method == ACPI_CSTATE_FFH) { + if (current_set_polling_and_test()) return -EINVAL; - } } /* @@ -819,9 +805,6 @@ static int acpi_idle_enter_simple(struct cpuidle_device *dev, sched_clock_idle_wakeup_event(0); - if (cx->entry_method != ACPI_CSTATE_FFH) - current_thread_info()->status |= TS_POLLING; - lapic_timer_state_broadcast(pr, cx, 0); return index; } @@ -858,18 +841,9 @@ static int acpi_idle_enter_bm(struct cpuidle_device *dev, } } - if (cx->entry_method != ACPI_CSTATE_FFH) { - current_thread_info()->status &= ~TS_POLLING; - /* - * TS_POLLING-cleared state must be visible before we test - * NEED_RESCHED: - */ - smp_mb(); - - if (unlikely(need_resched())) { - current_thread_info()->status |= TS_POLLING; + if (cx->entry_method == ACPI_CSTATE_FFH) { + if (current_set_polling_and_test()) return -EINVAL; - } } acpi_unlazy_tlb(smp_processor_id()); @@ -915,9 +889,6 @@ static int acpi_idle_enter_bm(struct cpuidle_device *dev, sched_clock_idle_wakeup_event(0); - if (cx->entry_method != ACPI_CSTATE_FFH) - current_thread_info()->status |= TS_POLLING; - lapic_timer_state_broadcast(pr, cx, 0); return index; } @@ -1076,12 +1047,8 @@ int acpi_processor_hotplug(struct acpi_processor *pr) if (disabled_by_idle_boot_param()) return 0; - if (!pr) - return -EINVAL; - - if (nocst) { + if (nocst) return -ENODEV; - } if (!pr->flags.power_setup_done) return -ENODEV; @@ -1108,9 +1075,6 @@ int acpi_processor_cst_has_changed(struct acpi_processor *pr) if (disabled_by_idle_boot_param()) return 0; - if (!pr) - return -EINVAL; - if (nocst) return -ENODEV; @@ -1183,9 +1147,6 @@ int acpi_processor_power_init(struct acpi_processor *pr) first_run++; } - if (!pr) - return -EINVAL; - if (acpi_gbl_FADT.cst_control && !nocst) { status = acpi_os_write_port(acpi_gbl_FADT.smi_command, acpi_gbl_FADT.cst_control, 8); diff --git a/drivers/acpi/processor_perflib.c b/drivers/acpi/processor_perflib.c index 51d7948611da..60a7c28fc167 100644 --- a/drivers/acpi/processor_perflib.c +++ b/drivers/acpi/processor_perflib.c @@ -235,28 +235,6 @@ void acpi_processor_ppc_exit(void) acpi_processor_ppc_status &= ~PPC_REGISTERED; } -/* - * Do a quick check if the systems looks like it should use ACPI - * cpufreq. We look at a _PCT method being available, but don't - * do a whole lot of sanity checks. - */ -void acpi_processor_load_module(struct acpi_processor *pr) -{ - static int requested; - acpi_status status = 0; - struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; - - if (!arch_has_acpi_pdc() || requested) - return; - status = acpi_evaluate_object(pr->handle, "_PCT", NULL, &buffer); - if (!ACPI_FAILURE(status)) { - printk(KERN_INFO PREFIX "Requesting acpi_cpufreq\n"); - request_module_nowait("acpi_cpufreq"); - requested = 1; - } - kfree(buffer.pointer); -} - static int acpi_processor_get_performance_control(struct acpi_processor *pr) { int result = 0; diff --git a/drivers/acpi/sbs.c b/drivers/acpi/sbs.c index aef7e1cd1e5d..d465ae6cdd00 100644 --- a/drivers/acpi/sbs.c +++ b/drivers/acpi/sbs.c @@ -30,12 +30,6 @@ #include <linux/moduleparam.h> #include <linux/kernel.h> -#ifdef CONFIG_ACPI_PROCFS_POWER -#include <linux/proc_fs.h> -#include <linux/seq_file.h> -#include <asm/uaccess.h> -#endif - #include <linux/acpi.h> #include <linux/timer.h> #include <linux/jiffies.h> @@ -67,11 +61,6 @@ static unsigned int cache_time = 1000; module_param(cache_time, uint, 0644); MODULE_PARM_DESC(cache_time, "cache time in milliseconds"); -extern struct proc_dir_entry *acpi_lock_ac_dir(void); -extern struct proc_dir_entry *acpi_lock_battery_dir(void); -extern void acpi_unlock_ac_dir(struct proc_dir_entry *acpi_ac_dir); -extern void acpi_unlock_battery_dir(struct proc_dir_entry *acpi_battery_dir); - #define MAX_SBS_BAT 4 #define ACPI_SBS_BLOCK_MAX 32 @@ -84,9 +73,6 @@ MODULE_DEVICE_TABLE(acpi, sbs_device_ids); struct acpi_battery { struct power_supply bat; struct acpi_sbs *sbs; -#ifdef CONFIG_ACPI_PROCFS_POWER - struct proc_dir_entry *proc_entry; -#endif unsigned long update_time; char name[8]; char manufacturer_name[ACPI_SBS_BLOCK_MAX]; @@ -119,9 +105,6 @@ struct acpi_sbs { struct acpi_device *device; struct acpi_smb_hc *hc; struct mutex lock; -#ifdef CONFIG_ACPI_PROCFS_POWER - struct proc_dir_entry *charger_entry; -#endif struct acpi_battery battery[MAX_SBS_BAT]; u8 batteries_supported:4; u8 manager_present:1; @@ -482,261 +465,6 @@ static struct device_attribute alarm_attr = { }; /* -------------------------------------------------------------------------- - FS Interface (/proc/acpi) - -------------------------------------------------------------------------- */ - -#ifdef CONFIG_ACPI_PROCFS_POWER -/* Generic Routines */ -static int -acpi_sbs_add_fs(struct proc_dir_entry **dir, - struct proc_dir_entry *parent_dir, - char *dir_name, - const struct file_operations *info_fops, - const struct file_operations *state_fops, - const struct file_operations *alarm_fops, void *data) -{ - printk(KERN_WARNING PREFIX "Deprecated procfs I/F for SBS is loaded," - " please retry with CONFIG_ACPI_PROCFS_POWER cleared\n"); - if (!*dir) { - *dir = proc_mkdir(dir_name, parent_dir); - if (!*dir) { - return -ENODEV; - } - } - - /* 'info' [R] */ - if (info_fops) - proc_create_data(ACPI_SBS_FILE_INFO, S_IRUGO, *dir, - info_fops, data); - - /* 'state' [R] */ - if (state_fops) - proc_create_data(ACPI_SBS_FILE_STATE, S_IRUGO, *dir, - state_fops, data); - - /* 'alarm' [R/W] */ - if (alarm_fops) - proc_create_data(ACPI_SBS_FILE_ALARM, S_IRUGO, *dir, - alarm_fops, data); - return 0; -} - -/* Smart Battery Interface */ -static struct proc_dir_entry *acpi_battery_dir = NULL; - -static inline char *acpi_battery_units(struct acpi_battery *battery) -{ - return acpi_battery_mode(battery) ? " mW" : " mA"; -} - - -static int acpi_battery_read_info(struct seq_file *seq, void *offset) -{ - struct acpi_battery *battery = seq->private; - struct acpi_sbs *sbs = battery->sbs; - int result = 0; - - mutex_lock(&sbs->lock); - - seq_printf(seq, "present: %s\n", - (battery->present) ? "yes" : "no"); - if (!battery->present) - goto end; - - seq_printf(seq, "design capacity: %i%sh\n", - battery->design_capacity * acpi_battery_scale(battery), - acpi_battery_units(battery)); - seq_printf(seq, "last full capacity: %i%sh\n", - battery->full_charge_capacity * acpi_battery_scale(battery), - acpi_battery_units(battery)); - seq_printf(seq, "battery technology: rechargeable\n"); - seq_printf(seq, "design voltage: %i mV\n", - battery->design_voltage * acpi_battery_vscale(battery)); - seq_printf(seq, "design capacity warning: unknown\n"); - seq_printf(seq, "design capacity low: unknown\n"); - seq_printf(seq, "cycle count: %i\n", battery->cycle_count); - seq_printf(seq, "capacity granularity 1: unknown\n"); - seq_printf(seq, "capacity granularity 2: unknown\n"); - seq_printf(seq, "model number: %s\n", battery->device_name); - seq_printf(seq, "serial number: %i\n", - battery->serial_number); - seq_printf(seq, "battery type: %s\n", - battery->device_chemistry); - seq_printf(seq, "OEM info: %s\n", - battery->manufacturer_name); - end: - mutex_unlock(&sbs->lock); - return result; -} - -static int acpi_battery_info_open_fs(struct inode *inode, struct file *file) -{ - return single_open(file, acpi_battery_read_info, PDE_DATA(inode)); -} - -static int acpi_battery_read_state(struct seq_file *seq, void *offset) -{ - struct acpi_battery *battery = seq->private; - struct acpi_sbs *sbs = battery->sbs; - int rate; - - mutex_lock(&sbs->lock); - seq_printf(seq, "present: %s\n", - (battery->present) ? "yes" : "no"); - if (!battery->present) - goto end; - - acpi_battery_get_state(battery); - seq_printf(seq, "capacity state: %s\n", - (battery->state & 0x0010) ? "critical" : "ok"); - seq_printf(seq, "charging state: %s\n", - (battery->rate_now < 0) ? "discharging" : - ((battery->rate_now > 0) ? "charging" : "charged")); - rate = abs(battery->rate_now) * acpi_battery_ipscale(battery); - rate *= (acpi_battery_mode(battery))?(battery->voltage_now * - acpi_battery_vscale(battery)/1000):1; - seq_printf(seq, "present rate: %d%s\n", rate, - acpi_battery_units(battery)); - seq_printf(seq, "remaining capacity: %i%sh\n", - battery->capacity_now * acpi_battery_scale(battery), - acpi_battery_units(battery)); - seq_printf(seq, "present voltage: %i mV\n", - battery->voltage_now * acpi_battery_vscale(battery)); - - end: - mutex_unlock(&sbs->lock); - return 0; -} - -static int acpi_battery_state_open_fs(struct inode *inode, struct file *file) -{ - return single_open(file, acpi_battery_read_state, PDE_DATA(inode)); -} - -static int acpi_battery_read_alarm(struct seq_file *seq, void *offset) -{ - struct acpi_battery *battery = seq->private; - struct acpi_sbs *sbs = battery->sbs; - int result = 0; - - mutex_lock(&sbs->lock); - - if (!battery->present) { - seq_printf(seq, "present: no\n"); - goto end; - } - - acpi_battery_get_alarm(battery); - seq_printf(seq, "alarm: "); - if (battery->alarm_capacity) - seq_printf(seq, "%i%sh\n", - battery->alarm_capacity * - acpi_battery_scale(battery), - acpi_battery_units(battery)); - else - seq_printf(seq, "disabled\n"); - end: - mutex_unlock(&sbs->lock); - return result; -} - -static ssize_t -acpi_battery_write_alarm(struct file *file, const char __user * buffer, - size_t count, loff_t * ppos) -{ - struct seq_file *seq = file->private_data; - struct acpi_battery *battery = seq->private; - struct acpi_sbs *sbs = battery->sbs; - char alarm_string[12] = { '\0' }; - int result = 0; - mutex_lock(&sbs->lock); - if (!battery->present) { - result = -ENODEV; - goto end; - } - if (count > sizeof(alarm_string) - 1) { - result = -EINVAL; - goto end; - } - if (copy_from_user(alarm_string, buffer, count)) { - result = -EFAULT; - goto end; - } - alarm_string[count] = 0; - battery->alarm_capacity = simple_strtoul(alarm_string, NULL, 0) / - acpi_battery_scale(battery); - acpi_battery_set_alarm(battery); - end: - mutex_unlock(&sbs->lock); - if (result) - return result; - return count; -} - -static int acpi_battery_alarm_open_fs(struct inode *inode, struct file *file) -{ - return single_open(file, acpi_battery_read_alarm, PDE_DATA(inode)); -} - -static const struct file_operations acpi_battery_info_fops = { - .open = acpi_battery_info_open_fs, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, - .owner = THIS_MODULE, -}; - -static const struct file_operations acpi_battery_state_fops = { - .open = acpi_battery_state_open_fs, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, - .owner = THIS_MODULE, -}; - -static const struct file_operations acpi_battery_alarm_fops = { - .open = acpi_battery_alarm_open_fs, - .read = seq_read, - .write = acpi_battery_write_alarm, - .llseek = seq_lseek, - .release = single_release, - .owner = THIS_MODULE, -}; - -/* Legacy AC Adapter Interface */ - -static struct proc_dir_entry *acpi_ac_dir = NULL; - -static int acpi_ac_read_state(struct seq_file *seq, void *offset) -{ - - struct acpi_sbs *sbs = seq->private; - - mutex_lock(&sbs->lock); - - seq_printf(seq, "state: %s\n", - sbs->charger_present ? "on-line" : "off-line"); - - mutex_unlock(&sbs->lock); - return 0; -} - -static int acpi_ac_state_open_fs(struct inode *inode, struct file *file) -{ - return single_open(file, acpi_ac_read_state, PDE_DATA(inode)); -} - -static const struct file_operations acpi_ac_state_fops = { - .open = acpi_ac_state_open_fs, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, - .owner = THIS_MODULE, -}; - -#endif - -/* -------------------------------------------------------------------------- Driver Interface -------------------------------------------------------------------------- */ static int acpi_battery_read(struct acpi_battery *battery) @@ -781,12 +509,6 @@ static int acpi_battery_add(struct acpi_sbs *sbs, int id) return result; sprintf(battery->name, ACPI_BATTERY_DIR_NAME, id); -#ifdef CONFIG_ACPI_PROCFS_POWER - acpi_sbs_add_fs(&battery->proc_entry, acpi_battery_dir, - battery->name, &acpi_battery_info_fops, - &acpi_battery_state_fops, &acpi_battery_alarm_fops, - battery); -#endif battery->bat.name = battery->name; battery->bat.type = POWER_SUPPLY_TYPE_BATTERY; if (!acpi_battery_mode(battery)) { @@ -822,10 +544,6 @@ static void acpi_battery_remove(struct acpi_sbs *sbs, int id) device_remove_file(battery->bat.dev, &alarm_attr); power_supply_unregister(&battery->bat); } -#ifdef CONFIG_ACPI_PROCFS_POWER - proc_remove(battery->proc_entry); - battery->proc_entry = NULL; -#endif } static int acpi_charger_add(struct acpi_sbs *sbs) @@ -835,13 +553,7 @@ static int acpi_charger_add(struct acpi_sbs *sbs) result = acpi_ac_get_present(sbs); if (result) goto end; -#ifdef CONFIG_ACPI_PROCFS_POWER - result = acpi_sbs_add_fs(&sbs->charger_entry, acpi_ac_dir, - ACPI_AC_DIR_NAME, NULL, - &acpi_ac_state_fops, NULL, sbs); - if (result) - goto end; -#endif + sbs->charger.name = "sbs-charger"; sbs->charger.type = POWER_SUPPLY_TYPE_MAINS; sbs->charger.properties = sbs_ac_props; @@ -859,10 +571,6 @@ static void acpi_charger_remove(struct acpi_sbs *sbs) { if (sbs->charger.dev) power_supply_unregister(&sbs->charger); -#ifdef CONFIG_ACPI_PROCFS_POWER - proc_remove(sbs->charger_entry); - sbs->charger_entry = NULL; -#endif } static void acpi_sbs_callback(void *context) @@ -950,20 +658,6 @@ static int acpi_sbs_remove(struct acpi_device *device) return 0; } -static void acpi_sbs_rmdirs(void) -{ -#ifdef CONFIG_ACPI_PROCFS_POWER - if (acpi_ac_dir) { - acpi_unlock_ac_dir(acpi_ac_dir); - acpi_ac_dir = NULL; - } - if (acpi_battery_dir) { - acpi_unlock_battery_dir(acpi_battery_dir); - acpi_battery_dir = NULL; - } -#endif -} - #ifdef CONFIG_PM_SLEEP static int acpi_sbs_resume(struct device *dev) { @@ -995,28 +689,17 @@ static int __init acpi_sbs_init(void) if (acpi_disabled) return -ENODEV; -#ifdef CONFIG_ACPI_PROCFS_POWER - acpi_ac_dir = acpi_lock_ac_dir(); - if (!acpi_ac_dir) - return -ENODEV; - acpi_battery_dir = acpi_lock_battery_dir(); - if (!acpi_battery_dir) { - acpi_sbs_rmdirs(); - return -ENODEV; - } -#endif + result = acpi_bus_register_driver(&acpi_sbs_driver); - if (result < 0) { - acpi_sbs_rmdirs(); + if (result < 0) return -ENODEV; - } + return 0; } static void __exit acpi_sbs_exit(void) { acpi_bus_unregister_driver(&acpi_sbs_driver); - acpi_sbs_rmdirs(); return; } diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c index fbdb82e70d10..fd39459926b1 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -125,8 +125,8 @@ acpi_device_modalias_show(struct device *dev, struct device_attribute *attr, cha } static DEVICE_ATTR(modalias, 0444, acpi_device_modalias_show, NULL); -static acpi_status acpi_bus_offline_companions(acpi_handle handle, u32 lvl, - void *data, void **ret_p) +static acpi_status acpi_bus_offline(acpi_handle handle, u32 lvl, void *data, + void **ret_p) { struct acpi_device *device = NULL; struct acpi_device_physical_node *pn; @@ -136,6 +136,11 @@ static acpi_status acpi_bus_offline_companions(acpi_handle handle, u32 lvl, if (acpi_bus_get_device(handle, &device)) return AE_OK; + if (device->handler && !device->handler->hotplug.enabled) { + *ret_p = &device->dev; + return AE_SUPPORT; + } + mutex_lock(&device->physical_node_lock); list_for_each_entry(pn, &device->physical_node_list, node) { @@ -168,8 +173,8 @@ static acpi_status acpi_bus_offline_companions(acpi_handle handle, u32 lvl, return status; } -static acpi_status acpi_bus_online_companions(acpi_handle handle, u32 lvl, - void *data, void **ret_p) +static acpi_status acpi_bus_online(acpi_handle handle, u32 lvl, void *data, + void **ret_p) { struct acpi_device *device = NULL; struct acpi_device_physical_node *pn; @@ -214,26 +219,32 @@ 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; - acpi_walk_namespace(ACPI_TYPE_ANY, handle, ACPI_UINT32_MAX, - NULL, acpi_bus_offline_companions, - (void *)false, (void **)&errdev); - acpi_bus_offline_companions(handle, 0, (void *)false, (void **)&errdev); + status = acpi_walk_namespace(ACPI_TYPE_ANY, handle, ACPI_UINT32_MAX, + NULL, acpi_bus_offline, (void *)false, + (void **)&errdev); + if (status == AE_SUPPORT) { + 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); if (errdev) { errdev = NULL; acpi_walk_namespace(ACPI_TYPE_ANY, handle, ACPI_UINT32_MAX, - NULL, acpi_bus_offline_companions, - (void *)true , (void **)&errdev); + NULL, acpi_bus_offline, (void *)true, + (void **)&errdev); if (!errdev || acpi_force_hot_remove) - acpi_bus_offline_companions(handle, 0, (void *)true, - (void **)&errdev); + acpi_bus_offline(handle, 0, (void *)true, + (void **)&errdev); if (errdev && !acpi_force_hot_remove) { dev_warn(errdev, "Offline failed.\n"); - acpi_bus_online_companions(handle, 0, NULL, NULL); + acpi_bus_online(handle, 0, NULL, NULL); acpi_walk_namespace(ACPI_TYPE_ANY, handle, - ACPI_UINT32_MAX, - acpi_bus_online_companions, NULL, - NULL, NULL); + ACPI_UINT32_MAX, acpi_bus_online, + NULL, NULL, NULL); put_device(&device->dev); return -EBUSY; } @@ -274,49 +285,45 @@ static int acpi_scan_hot_remove(struct acpi_device *device) return 0; } -static void acpi_bus_device_eject(void *context) +void acpi_bus_device_eject(void *data, u32 ost_src) { - acpi_handle handle = context; - struct acpi_device *device = NULL; - struct acpi_scan_handler *handler; + struct acpi_device *device = data; + acpi_handle handle = device->handle; u32 ost_code = ACPI_OST_SC_NON_SPECIFIC_FAILURE; int error; lock_device_hotplug(); mutex_lock(&acpi_scan_lock); - acpi_bus_get_device(handle, &device); - if (!device) - goto err_out; + if (ost_src == ACPI_NOTIFY_EJECT_REQUEST) + acpi_evaluate_hotplug_ost(handle, ACPI_NOTIFY_EJECT_REQUEST, + ACPI_OST_SC_EJECT_IN_PROGRESS, NULL); - handler = device->handler; - if (!handler || !handler->hotplug.enabled) { - ost_code = ACPI_OST_SC_EJECT_NOT_SUPPORTED; - goto err_out; - } - acpi_evaluate_hotplug_ost(handle, ACPI_NOTIFY_EJECT_REQUEST, - ACPI_OST_SC_EJECT_IN_PROGRESS, NULL); - if (handler->hotplug.mode == AHM_CONTAINER) + if (device->handler && device->handler->hotplug.mode == AHM_CONTAINER) kobject_uevent(&device->dev.kobj, KOBJ_OFFLINE); - get_device(&device->dev); error = acpi_scan_hot_remove(device); - if (error) + if (error == -EPERM) { + goto err_support; + } else if (error) { goto err_out; + } 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, ACPI_NOTIFY_EJECT_REQUEST, ost_code, - NULL); + acpi_evaluate_hotplug_ost(handle, ost_src, ost_code, NULL); goto out; } -static void acpi_scan_bus_device_check(acpi_handle handle, u32 ost_source) +static void acpi_scan_bus_device_check(void *data, u32 ost_source) { + acpi_handle handle = data; struct acpi_device *device = NULL; u32 ost_code = ACPI_OST_SC_NON_SPECIFIC_FAILURE; int error; @@ -331,8 +338,6 @@ static void acpi_scan_bus_device_check(acpi_handle handle, u32 ost_source) goto out; } } - acpi_evaluate_hotplug_ost(handle, ost_source, - ACPI_OST_SC_INSERT_IN_PROGRESS, NULL); error = acpi_bus_scan(handle); if (error) { acpi_handle_warn(handle, "Namespace scan failure\n"); @@ -353,18 +358,6 @@ static void acpi_scan_bus_device_check(acpi_handle handle, u32 ost_source) unlock_device_hotplug(); } -static void acpi_scan_bus_check(void *context) -{ - acpi_scan_bus_device_check((acpi_handle)context, - ACPI_NOTIFY_BUS_CHECK); -} - -static void acpi_scan_device_check(void *context) -{ - acpi_scan_bus_device_check((acpi_handle)context, - ACPI_NOTIFY_DEVICE_CHECK); -} - static void acpi_hotplug_unsupported(acpi_handle handle, u32 type) { u32 ost_status; @@ -395,8 +388,8 @@ static void acpi_hotplug_unsupported(acpi_handle handle, u32 type) static void acpi_hotplug_notify_cb(acpi_handle handle, u32 type, void *data) { - acpi_osd_exec_callback callback; struct acpi_scan_handler *handler = data; + struct acpi_device *adev; acpi_status status; if (!handler->hotplug.enabled) @@ -405,56 +398,34 @@ static void acpi_hotplug_notify_cb(acpi_handle handle, u32 type, void *data) switch (type) { case ACPI_NOTIFY_BUS_CHECK: acpi_handle_debug(handle, "ACPI_NOTIFY_BUS_CHECK event\n"); - callback = acpi_scan_bus_check; break; case ACPI_NOTIFY_DEVICE_CHECK: acpi_handle_debug(handle, "ACPI_NOTIFY_DEVICE_CHECK event\n"); - callback = acpi_scan_device_check; break; case ACPI_NOTIFY_EJECT_REQUEST: acpi_handle_debug(handle, "ACPI_NOTIFY_EJECT_REQUEST event\n"); - callback = acpi_bus_device_eject; - break; + if (acpi_bus_get_device(handle, &adev)) + 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; default: /* non-hotplug event; possibly handled by other handler */ return; } - status = acpi_os_hotplug_execute(callback, handle); - if (ACPI_FAILURE(status)) - acpi_evaluate_hotplug_ost(handle, type, - ACPI_OST_SC_NON_SPECIFIC_FAILURE, - NULL); -} - -/** - * acpi_bus_hot_remove_device: hot-remove a device and its children - * @context: struct acpi_eject_event pointer (freed in this func) - * - * Hot-remove a device and its children. This function frees up the - * memory space passed by arg context, so that the caller may call - * this function asynchronously through acpi_os_hotplug_execute(). - */ -void acpi_bus_hot_remove_device(void *context) -{ - struct acpi_eject_event *ej_event = context; - struct acpi_device *device = ej_event->device; - acpi_handle handle = device->handle; - int error; - - lock_device_hotplug(); - mutex_lock(&acpi_scan_lock); - - error = acpi_scan_hot_remove(device); - if (error && handle) - acpi_evaluate_hotplug_ost(handle, ej_event->event, - ACPI_OST_SC_NON_SPECIFIC_FAILURE, - NULL); + status = acpi_hotplug_execute(acpi_scan_bus_device_check, handle, type); + if (ACPI_SUCCESS(status)) + return; - mutex_unlock(&acpi_scan_lock); - unlock_device_hotplug(); - kfree(context); + err_out: + acpi_evaluate_hotplug_ost(handle, type, + ACPI_OST_SC_NON_SPECIFIC_FAILURE, NULL); } -EXPORT_SYMBOL(acpi_bus_hot_remove_device); static ssize_t real_power_state_show(struct device *dev, struct device_attribute *attr, char *buf) @@ -487,10 +458,8 @@ acpi_eject_store(struct device *d, struct device_attribute *attr, const char *buf, size_t count) { struct acpi_device *acpi_device = to_acpi_device(d); - struct acpi_eject_event *ej_event; acpi_object_type not_used; acpi_status status; - int ret; if (!count || buf[0] != '1') return -EINVAL; @@ -503,28 +472,18 @@ acpi_eject_store(struct device *d, struct device_attribute *attr, if (ACPI_FAILURE(status) || !acpi_device->flags.ejectable) return -ENODEV; - ej_event = kmalloc(sizeof(*ej_event), GFP_KERNEL); - if (!ej_event) { - ret = -ENOMEM; - goto err_out; - } acpi_evaluate_hotplug_ost(acpi_device->handle, ACPI_OST_EC_OSPM_EJECT, ACPI_OST_SC_EJECT_IN_PROGRESS, NULL); - ej_event->device = acpi_device; - ej_event->event = ACPI_OST_EC_OSPM_EJECT; get_device(&acpi_device->dev); - status = acpi_os_hotplug_execute(acpi_bus_hot_remove_device, ej_event); + status = acpi_hotplug_execute(acpi_bus_device_eject, acpi_device, + ACPI_OST_EC_OSPM_EJECT); if (ACPI_SUCCESS(status)) return count; put_device(&acpi_device->dev); - kfree(ej_event); - ret = status == AE_NO_MEMORY ? -ENOMEM : -EAGAIN; - - err_out: acpi_evaluate_hotplug_ost(acpi_device->handle, ACPI_OST_EC_OSPM_EJECT, ACPI_OST_SC_NON_SPECIFIC_FAILURE, NULL); - return ret; + return status == AE_NO_MEMORY ? -ENOMEM : -EAGAIN; } static DEVICE_ATTR(eject, 0200, NULL, acpi_eject_store); @@ -968,7 +927,7 @@ int acpi_bus_get_device(acpi_handle handle, struct acpi_device **device) } return 0; } -EXPORT_SYMBOL_GPL(acpi_bus_get_device); +EXPORT_SYMBOL(acpi_bus_get_device); int acpi_device_add(struct acpi_device *device, void (*release)(struct device *)) @@ -999,7 +958,6 @@ int acpi_device_add(struct acpi_device *device, INIT_LIST_HEAD(&device->wakeup_list); INIT_LIST_HEAD(&device->physical_node_list); mutex_init(&device->physical_node_lock); - INIT_LIST_HEAD(&device->power_dependent); new_bus_id = kzalloc(sizeof(struct acpi_device_bus_id), GFP_KERNEL); if (!new_bus_id) { @@ -1121,7 +1079,7 @@ int acpi_bus_register_driver(struct acpi_driver *driver) EXPORT_SYMBOL(acpi_bus_register_driver); /** - * acpi_bus_unregister_driver - unregisters a driver with the APIC bus + * acpi_bus_unregister_driver - unregisters a driver with the ACPI bus * @driver: driver to unregister * * Unregisters a driver with the ACPI bus. Searches the namespace for all @@ -1677,7 +1635,6 @@ void acpi_init_device_object(struct acpi_device *device, acpi_handle handle, void acpi_device_add_finalize(struct acpi_device *device) { - device->flags.match_driver = true; dev_set_uevent_suppress(&device->dev, false); kobject_uevent(&device->dev.kobj, KOBJ_ADD); } @@ -1815,7 +1772,7 @@ 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) { + if (handler && !handler->hotplug.ignore) { acpi_install_notify_handler(handle, ACPI_SYSTEM_NOTIFY, acpi_hotplug_notify_cb, handler); break; @@ -1916,8 +1873,12 @@ static acpi_status acpi_bus_device_attach(acpi_handle handle, u32 lvl_not_used, return AE_OK; ret = acpi_scan_attach_handler(device); - if (ret) - return ret > 0 ? AE_OK : AE_CTRL_DEPTH; + if (ret < 0) + return AE_CTRL_DEPTH; + + device->flags.match_driver = true; + if (ret > 0) + return AE_OK; ret = device_attach(&device->dev); return ret >= 0 ? AE_OK : AE_CTRL_DEPTH; @@ -2028,6 +1989,7 @@ static int acpi_bus_scan_fixed(void) if (result) return result; + device->flags.match_driver = true; result = device_attach(&device->dev); if (result < 0) return result; @@ -2044,6 +2006,7 @@ static int acpi_bus_scan_fixed(void) if (result) return result; + device->flags.match_driver = true; result = device_attach(&device->dev); } diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c index 14df30580e15..721e949e606e 100644 --- a/drivers/acpi/sleep.c +++ b/drivers/acpi/sleep.c @@ -525,7 +525,7 @@ static int acpi_suspend_enter(suspend_state_t pm_state) * generate wakeup events. */ if (ACPI_SUCCESS(status) && (acpi_state == ACPI_STATE_S3)) { - acpi_event_status pwr_btn_status; + acpi_event_status pwr_btn_status = ACPI_EVENT_FLAG_DISABLED; acpi_get_event_status(ACPI_EVENT_POWER_BUTTON, &pwr_btn_status); diff --git a/drivers/acpi/sysfs.c b/drivers/acpi/sysfs.c index 05306a59aedc..6dbc3ca45223 100644 --- a/drivers/acpi/sysfs.c +++ b/drivers/acpi/sysfs.c @@ -309,7 +309,7 @@ static void acpi_table_attr_init(struct acpi_table_attr *table_attr, sprintf(table_attr->name + ACPI_NAME_SIZE, "%d", table_attr->instance); - table_attr->attr.size = 0; + table_attr->attr.size = table_header->length; table_attr->attr.read = acpi_table_show; table_attr->attr.attr.name = table_attr->name; table_attr->attr.attr.mode = 0400; @@ -354,8 +354,9 @@ static int acpi_tables_sysfs_init(void) { struct acpi_table_attr *table_attr; struct acpi_table_header *table_header = NULL; - int table_index = 0; - int result; + int table_index; + acpi_status status; + int ret; tables_kobj = kobject_create_and_add("tables", acpi_kobj); if (!tables_kobj) @@ -365,33 +366,34 @@ static int acpi_tables_sysfs_init(void) if (!dynamic_tables_kobj) goto err_dynamic_tables; - do { - result = acpi_get_table_by_index(table_index, &table_header); - if (!result) { - table_index++; - table_attr = NULL; - table_attr = - kzalloc(sizeof(struct acpi_table_attr), GFP_KERNEL); - if (!table_attr) - return -ENOMEM; - - acpi_table_attr_init(table_attr, table_header); - result = - sysfs_create_bin_file(tables_kobj, - &table_attr->attr); - if (result) { - kfree(table_attr); - return result; - } else - list_add_tail(&table_attr->node, - &acpi_table_attr_list); + for (table_index = 0;; table_index++) { + status = acpi_get_table_by_index(table_index, &table_header); + + if (status == AE_BAD_PARAMETER) + break; + + if (ACPI_FAILURE(status)) + continue; + + table_attr = NULL; + table_attr = kzalloc(sizeof(*table_attr), GFP_KERNEL); + if (!table_attr) + return -ENOMEM; + + acpi_table_attr_init(table_attr, table_header); + ret = sysfs_create_bin_file(tables_kobj, &table_attr->attr); + if (ret) { + kfree(table_attr); + return ret; } - } while (!result); + list_add_tail(&table_attr->node, &acpi_table_attr_list); + } + kobject_uevent(tables_kobj, KOBJ_ADD); kobject_uevent(dynamic_tables_kobj, KOBJ_ADD); - result = acpi_install_table_handler(acpi_sysfs_table_handler, NULL); + status = acpi_install_table_handler(acpi_sysfs_table_handler, NULL); - return result == AE_OK ? 0 : -EINVAL; + return ACPI_FAILURE(status) ? -EINVAL : 0; err_dynamic_tables: kobject_put(tables_kobj); err: @@ -564,6 +566,7 @@ static ssize_t counter_set(struct kobject *kobj, acpi_event_status status; acpi_handle handle; int result = 0; + unsigned long tmp; if (index == num_gpes + ACPI_NUM_FIXED_EVENTS + COUNT_SCI) { int i; @@ -596,8 +599,10 @@ static ssize_t counter_set(struct kobject *kobj, else if (!strcmp(buf, "clear\n") && (status & ACPI_EVENT_FLAG_SET)) result = acpi_clear_gpe(handle, index); + else if (!kstrtoul(buf, 0, &tmp)) + all_counters[index].count = tmp; else - all_counters[index].count = strtoul(buf, NULL, 0); + result = -EINVAL; } else if (index < num_gpes + ACPI_NUM_FIXED_EVENTS) { int event = index - num_gpes; if (!strcmp(buf, "disable\n") && @@ -609,8 +614,10 @@ static ssize_t counter_set(struct kobject *kobj, else if (!strcmp(buf, "clear\n") && (status & ACPI_EVENT_FLAG_SET)) result = acpi_clear_event(event); + else if (!kstrtoul(buf, 0, &tmp)) + all_counters[index].count = tmp; else - all_counters[index].count = strtoul(buf, NULL, 0); + result = -EINVAL; } else all_counters[index].count = strtoul(buf, NULL, 0); @@ -762,13 +769,8 @@ void acpi_sysfs_add_hotplug_profile(struct acpi_hotplug_profile *hotplug, if (!hotplug_kobj) goto err_out; - kobject_init(&hotplug->kobj, &acpi_hotplug_profile_ktype); - error = kobject_set_name(&hotplug->kobj, "%s", name); - if (error) - goto err_out; - - hotplug->kobj.parent = hotplug_kobj; - error = kobject_add(&hotplug->kobj, hotplug_kobj, NULL); + error = kobject_init_and_add(&hotplug->kobj, + &acpi_hotplug_profile_ktype, hotplug_kobj, "%s", name); if (error) goto err_out; diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c index 6a0329340b42..0d9f46b5ae6d 100644 --- a/drivers/acpi/thermal.c +++ b/drivers/acpi/thermal.c @@ -299,8 +299,8 @@ static int acpi_thermal_trips_update(struct acpi_thermal *tz, int flag) ACPI_DEBUG_PRINT((ACPI_DB_INFO, "No critical threshold\n")); } else if (tmp <= 2732) { - printk(KERN_WARNING FW_BUG "Invalid critical threshold " - "(%llu)\n", tmp); + pr_warn(FW_BUG "Invalid critical threshold (%llu)\n", + tmp); tz->trips.critical.flags.valid = 0; } else { tz->trips.critical.flags.valid = 1; @@ -317,8 +317,8 @@ static int acpi_thermal_trips_update(struct acpi_thermal *tz, int flag) * Allow override critical threshold */ if (crt_k > tz->trips.critical.temperature) - printk(KERN_WARNING PREFIX - "Critical threshold %d C\n", crt); + pr_warn(PREFIX "Critical threshold %d C\n", + crt); tz->trips.critical.temperature = crt_k; } } @@ -390,8 +390,7 @@ static int acpi_thermal_trips_update(struct acpi_thermal *tz, int flag) status = acpi_evaluate_reference(tz->device->handle, "_PSL", NULL, &devices); if (ACPI_FAILURE(status)) { - printk(KERN_WARNING PREFIX - "Invalid passive threshold\n"); + pr_warn(PREFIX "Invalid passive threshold\n"); tz->trips.passive.flags.valid = 0; } else @@ -453,8 +452,8 @@ static int acpi_thermal_trips_update(struct acpi_thermal *tz, int flag) status = acpi_evaluate_reference(tz->device->handle, name, NULL, &devices); if (ACPI_FAILURE(status)) { - printk(KERN_WARNING PREFIX - "Invalid active%d threshold\n", i); + pr_warn(PREFIX "Invalid active%d threshold\n", + i); tz->trips.active[i].flags.valid = 0; } else @@ -505,7 +504,7 @@ static int acpi_thermal_get_trip_points(struct acpi_thermal *tz) valid |= tz->trips.active[i].flags.valid; if (!valid) { - printk(KERN_WARNING FW_BUG "No valid trip found\n"); + pr_warn(FW_BUG "No valid trip found\n"); return -ENODEV; } return 0; @@ -515,10 +514,9 @@ static void acpi_thermal_check(void *data) { struct acpi_thermal *tz = data; - if (!tz->tz_enabled) { - pr_warn("thermal zone is disabled \n"); + if (!tz->tz_enabled) return; - } + thermal_zone_device_update(tz->thermal_zone); } @@ -570,9 +568,10 @@ static int thermal_set_mode(struct thermal_zone_device *thermal, */ if (mode == THERMAL_DEVICE_ENABLED) enable = 1; - else if (mode == THERMAL_DEVICE_DISABLED) + else if (mode == THERMAL_DEVICE_DISABLED) { enable = 0; - else + pr_warn("thermal zone will be disabled\n"); + } else return -EINVAL; if (enable != tz->tz_enabled) { @@ -923,8 +922,7 @@ static int acpi_thermal_register_thermal_zone(struct acpi_thermal *tz) acpi_bus_private_data_handler, tz->thermal_zone); if (ACPI_FAILURE(status)) { - printk(KERN_ERR PREFIX - "Error attaching device data\n"); + pr_err(PREFIX "Error attaching device data\n"); return -ENODEV; } @@ -1094,9 +1092,8 @@ static int acpi_thermal_add(struct acpi_device *device) if (result) goto free_memory; - printk(KERN_INFO PREFIX "%s [%s] (%ld C)\n", - acpi_device_name(device), acpi_device_bid(device), - KELVIN_TO_CELSIUS(tz->temperature)); + pr_info(PREFIX "%s [%s] (%ld C)\n", acpi_device_name(device), + acpi_device_bid(device), KELVIN_TO_CELSIUS(tz->temperature)); goto end; free_memory: @@ -1159,24 +1156,24 @@ static int acpi_thermal_resume(struct device *dev) static int thermal_act(const struct dmi_system_id *d) { if (act == 0) { - printk(KERN_NOTICE "ACPI: %s detected: " - "disabling all active thermal trip points\n", d->ident); + pr_notice(PREFIX "%s detected: " + "disabling all active thermal trip points\n", d->ident); act = -1; } return 0; } static int thermal_nocrt(const struct dmi_system_id *d) { - printk(KERN_NOTICE "ACPI: %s detected: " - "disabling all critical thermal trip point actions.\n", d->ident); + pr_notice(PREFIX "%s detected: " + "disabling all critical thermal trip point actions.\n", d->ident); nocrt = 1; return 0; } static int thermal_tzp(const struct dmi_system_id *d) { if (tzp == 0) { - printk(KERN_NOTICE "ACPI: %s detected: " - "enabling thermal zone polling\n", d->ident); + pr_notice(PREFIX "%s detected: " + "enabling thermal zone polling\n", d->ident); tzp = 300; /* 300 dS = 30 Seconds */ } return 0; @@ -1184,8 +1181,8 @@ static int thermal_tzp(const struct dmi_system_id *d) { static int thermal_psv(const struct dmi_system_id *d) { if (psv == 0) { - printk(KERN_NOTICE "ACPI: %s detected: " - "disabling all passive thermal trip points\n", d->ident); + pr_notice(PREFIX "%s detected: " + "disabling all passive thermal trip points\n", d->ident); psv = -1; } return 0; @@ -1238,7 +1235,7 @@ static int __init acpi_thermal_init(void) dmi_check_system(thermal_dmi_table); if (off) { - printk(KERN_NOTICE "ACPI: thermal control disabled\n"); + pr_notice(PREFIX "thermal control disabled\n"); return -ENODEV; } diff --git a/drivers/acpi/utils.c b/drivers/acpi/utils.c index 552248b0005b..6d408bfbbb1d 100644 --- a/drivers/acpi/utils.c +++ b/drivers/acpi/utils.c @@ -121,7 +121,7 @@ acpi_extract_package(union acpi_object *package, break; default: printk(KERN_WARNING PREFIX "Invalid package element" - " [%d]: got number, expecing" + " [%d]: got number, expecting" " [%c]\n", i, format_string[i]); return AE_BAD_DATA; @@ -148,7 +148,7 @@ acpi_extract_package(union acpi_object *package, default: printk(KERN_WARNING PREFIX "Invalid package element" " [%d] got string/buffer," - " expecing [%c]\n", + " expecting [%c]\n", i, format_string[i]); return AE_BAD_DATA; break; @@ -169,11 +169,20 @@ acpi_extract_package(union acpi_object *package, /* * Validate output buffer. */ - if (buffer->length < size_required) { + if (buffer->length == ACPI_ALLOCATE_BUFFER) { + buffer->pointer = ACPI_ALLOCATE(size_required); + if (!buffer->pointer) + return AE_NO_MEMORY; buffer->length = size_required; - return AE_BUFFER_OVERFLOW; - } else if (buffer->length != size_required || !buffer->pointer) { - return AE_BAD_PARAMETER; + memset(buffer->pointer, 0, size_required); + } else { + if (buffer->length < size_required) { + buffer->length = size_required; + return AE_BUFFER_OVERFLOW; + } else if (buffer->length != size_required || + !buffer->pointer) { + return AE_BAD_PARAMETER; + } } head = buffer->pointer; diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c index aebcf6355df4..995e91bcb97b 100644 --- a/drivers/acpi/video.c +++ b/drivers/acpi/video.c @@ -82,13 +82,15 @@ static bool allow_duplicates; module_param(allow_duplicates, bool, 0644); /* - * Some BIOSes claim they use minimum backlight at boot, - * and this may bring dimming screen after boot + * For Windows 8 systems: if set ture and the GPU driver has + * registered a backlight interface, skip registering ACPI video's. */ -static bool use_bios_initial_backlight = 1; -module_param(use_bios_initial_backlight, bool, 0644); +static bool use_native_backlight = false; +module_param(use_native_backlight, bool, 0644); static int register_count; +static struct mutex video_list_lock; +static struct list_head video_bus_head; static int acpi_video_bus_add(struct acpi_device *device); static int acpi_video_bus_remove(struct acpi_device *device); static void acpi_video_bus_notify(struct acpi_device *device, u32 event); @@ -157,6 +159,7 @@ struct acpi_video_bus { struct acpi_video_bus_flags flags; struct list_head video_device_list; struct mutex device_list_lock; /* protects video_device_list */ + struct list_head entry; struct input_dev *input; char phys[32]; /* for input device */ struct notifier_block pm_nb; @@ -229,6 +232,14 @@ static int acpi_video_get_next_level(struct acpi_video_device *device, static int acpi_video_switch_brightness(struct acpi_video_device *device, int event); +static bool acpi_video_verify_backlight_support(void) +{ + if (acpi_osi_is_win8() && use_native_backlight && + backlight_device_registered(BACKLIGHT_RAW)) + return false; + return acpi_video_backlight_support(); +} + /* backlight device sysfs support */ static int acpi_video_get_brightness(struct backlight_device *bd) { @@ -388,12 +399,6 @@ static int __init video_set_bqc_offset(const struct dmi_system_id *d) return 0; } -static int video_ignore_initial_backlight(const struct dmi_system_id *d) -{ - use_bios_initial_backlight = 0; - return 0; -} - static struct dmi_system_id video_dmi_table[] __initdata = { /* * Broken _BQC workaround http://bugzilla.kernel.org/show_bug.cgi?id=13121 @@ -438,54 +443,6 @@ static struct dmi_system_id video_dmi_table[] __initdata = { DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 7720"), }, }, - { - .callback = video_ignore_initial_backlight, - .ident = "HP Folio 13-2000", - .matches = { - DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"), - DMI_MATCH(DMI_PRODUCT_NAME, "HP Folio 13 - 2000 Notebook PC"), - }, - }, - { - .callback = video_ignore_initial_backlight, - .ident = "Fujitsu E753", - .matches = { - DMI_MATCH(DMI_BOARD_VENDOR, "FUJITSU"), - DMI_MATCH(DMI_PRODUCT_NAME, "LIFEBOOK E753"), - }, - }, - { - .callback = video_ignore_initial_backlight, - .ident = "HP Pavilion dm4", - .matches = { - DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"), - DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dm4 Notebook PC"), - }, - }, - { - .callback = video_ignore_initial_backlight, - .ident = "HP Pavilion g6 Notebook PC", - .matches = { - DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"), - DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion g6 Notebook PC"), - }, - }, - { - .callback = video_ignore_initial_backlight, - .ident = "HP 1000 Notebook PC", - .matches = { - DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"), - DMI_MATCH(DMI_PRODUCT_NAME, "HP 1000 Notebook PC"), - }, - }, - { - .callback = video_ignore_initial_backlight, - .ident = "HP Pavilion m4", - .matches = { - DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"), - DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion m4 Notebook PC"), - }, - }, {} }; @@ -821,20 +778,18 @@ acpi_video_init_brightness(struct acpi_video_device *device) if (!device->cap._BQC) goto set_level; - if (use_bios_initial_backlight) { - level = acpi_video_bqc_value_to_level(device, level_old); - /* - * On some buggy laptops, _BQC returns an uninitialized - * value when invoked for the first time, i.e. - * level_old is invalid (no matter whether it's a level - * or an index). Set the backlight to max_level in this case. - */ - for (i = 2; i < br->count; i++) - if (level_old == br->levels[i]) - break; - if (i == br->count) - level = max_level; - } + level = acpi_video_bqc_value_to_level(device, level_old); + /* + * On some buggy laptops, _BQC returns an uninitialized + * value when invoked for the first time, i.e. + * level_old is invalid (no matter whether it's a level + * or an index). Set the backlight to max_level in this case. + */ + for (i = 2; i < br->count; i++) + if (level == br->levels[i]) + break; + if (i == br->count || !level) + level = max_level; set_level: result = acpi_video_device_lcd_set_level(device, level); @@ -884,79 +839,6 @@ static void acpi_video_device_find_cap(struct acpi_video_device *device) if (acpi_has_method(device->dev->handle, "_DDC")) device->cap._DDC = 1; - - if (acpi_video_backlight_support()) { - struct backlight_properties props; - struct pci_dev *pdev; - acpi_handle acpi_parent; - struct device *parent = NULL; - int result; - static int count; - char *name; - - result = acpi_video_init_brightness(device); - if (result) - return; - name = kasprintf(GFP_KERNEL, "acpi_video%d", count); - if (!name) - return; - count++; - - acpi_get_parent(device->dev->handle, &acpi_parent); - - pdev = acpi_get_pci_dev(acpi_parent); - if (pdev) { - parent = &pdev->dev; - pci_dev_put(pdev); - } - - memset(&props, 0, sizeof(struct backlight_properties)); - props.type = BACKLIGHT_FIRMWARE; - props.max_brightness = device->brightness->count - 3; - device->backlight = backlight_device_register(name, - parent, - device, - &acpi_backlight_ops, - &props); - kfree(name); - if (IS_ERR(device->backlight)) - return; - - /* - * Save current brightness level in case we have to restore it - * before acpi_video_device_lcd_set_level() is called next time. - */ - device->backlight->props.brightness = - acpi_video_get_brightness(device->backlight); - - device->cooling_dev = thermal_cooling_device_register("LCD", - device->dev, &video_cooling_ops); - if (IS_ERR(device->cooling_dev)) { - /* - * Set cooling_dev to NULL so we don't crash trying to - * free it. - * Also, why the hell we are returning early and - * not attempt to register video output if cooling - * device registration failed? - * -- dtor - */ - device->cooling_dev = NULL; - return; - } - - dev_info(&device->dev->dev, "registered as cooling_device%d\n", - device->cooling_dev->id); - result = sysfs_create_link(&device->dev->dev.kobj, - &device->cooling_dev->device.kobj, - "thermal_cooling"); - if (result) - printk(KERN_ERR PREFIX "Create sysfs link\n"); - result = sysfs_create_link(&device->cooling_dev->device.kobj, - &device->dev->dev.kobj, "device"); - if (result) - printk(KERN_ERR PREFIX "Create sysfs link\n"); - - } } /* @@ -1143,13 +1025,6 @@ acpi_video_bus_get_one_device(struct acpi_device *device, acpi_video_device_bind(video, data); acpi_video_device_find_cap(data); - status = acpi_install_notify_handler(device->handle, ACPI_DEVICE_NOTIFY, - acpi_video_device_notify, data); - if (ACPI_FAILURE(status)) - dev_err(&device->dev, "Error installing notify handler\n"); - else - data->flags.notify = 1; - mutex_lock(&video->device_list_lock); list_add_tail(&data->entry, &video->video_device_list); mutex_unlock(&video->device_list_lock); @@ -1333,8 +1208,8 @@ acpi_video_switch_brightness(struct acpi_video_device *device, int event) unsigned long long level_current, level_next; int result = -EINVAL; - /* no warning message if acpi_backlight=vendor is used */ - if (!acpi_video_backlight_support()) + /* no warning message if acpi_backlight=vendor or a quirk is used */ + if (!acpi_video_verify_backlight_support()) return 0; if (!device->brightness) @@ -1454,64 +1329,6 @@ acpi_video_bus_get_devices(struct acpi_video_bus *video, return status; } -static int acpi_video_bus_put_one_device(struct acpi_video_device *device) -{ - acpi_status status; - - if (!device || !device->video) - return -ENOENT; - - if (device->flags.notify) { - status = acpi_remove_notify_handler(device->dev->handle, - ACPI_DEVICE_NOTIFY, acpi_video_device_notify); - if (ACPI_FAILURE(status)) - dev_err(&device->dev->dev, - "Can't remove video notify handler\n"); - } - - if (device->backlight) { - backlight_device_unregister(device->backlight); - device->backlight = NULL; - } - if (device->cooling_dev) { - sysfs_remove_link(&device->dev->dev.kobj, - "thermal_cooling"); - sysfs_remove_link(&device->cooling_dev->device.kobj, - "device"); - thermal_cooling_device_unregister(device->cooling_dev); - device->cooling_dev = NULL; - } - - return 0; -} - -static int acpi_video_bus_put_devices(struct acpi_video_bus *video) -{ - int status; - struct acpi_video_device *dev, *next; - - mutex_lock(&video->device_list_lock); - - list_for_each_entry_safe(dev, next, &video->video_device_list, entry) { - - status = acpi_video_bus_put_one_device(dev); - if (ACPI_FAILURE(status)) - printk(KERN_WARNING PREFIX - "hhuuhhuu bug in acpi video driver.\n"); - - if (dev->brightness) { - kfree(dev->brightness->levels); - kfree(dev->brightness); - } - list_del(&dev->entry); - kfree(dev); - } - - mutex_unlock(&video->device_list_lock); - - return 0; -} - /* acpi_video interface */ /* @@ -1521,13 +1338,13 @@ static int acpi_video_bus_put_devices(struct acpi_video_bus *video) static int acpi_video_bus_start_devices(struct acpi_video_bus *video) { return acpi_video_bus_DOS(video, 0, - acpi_video_backlight_quirks() ? 1 : 0); + acpi_osi_is_win8() ? 1 : 0); } static int acpi_video_bus_stop_devices(struct acpi_video_bus *video) { return acpi_video_bus_DOS(video, 0, - acpi_video_backlight_quirks() ? 0 : 1); + acpi_osi_is_win8() ? 0 : 1); } static void acpi_video_bus_notify(struct acpi_device *device, u32 event) @@ -1536,7 +1353,7 @@ static void acpi_video_bus_notify(struct acpi_device *device, u32 event) struct input_dev *input; int keycode = 0; - if (!video) + if (!video || !video->input) return; input = video->input; @@ -1691,12 +1508,236 @@ acpi_video_bus_match(acpi_handle handle, u32 level, void *context, return AE_OK; } +static void acpi_video_dev_register_backlight(struct acpi_video_device *device) +{ + if (acpi_video_verify_backlight_support()) { + struct backlight_properties props; + struct pci_dev *pdev; + acpi_handle acpi_parent; + struct device *parent = NULL; + int result; + static int count; + char *name; + + result = acpi_video_init_brightness(device); + if (result) + return; + name = kasprintf(GFP_KERNEL, "acpi_video%d", count); + if (!name) + return; + count++; + + acpi_get_parent(device->dev->handle, &acpi_parent); + + pdev = acpi_get_pci_dev(acpi_parent); + if (pdev) { + parent = &pdev->dev; + pci_dev_put(pdev); + } + + memset(&props, 0, sizeof(struct backlight_properties)); + props.type = BACKLIGHT_FIRMWARE; + props.max_brightness = device->brightness->count - 3; + device->backlight = backlight_device_register(name, + parent, + device, + &acpi_backlight_ops, + &props); + kfree(name); + if (IS_ERR(device->backlight)) + return; + + /* + * Save current brightness level in case we have to restore it + * before acpi_video_device_lcd_set_level() is called next time. + */ + device->backlight->props.brightness = + acpi_video_get_brightness(device->backlight); + + device->cooling_dev = thermal_cooling_device_register("LCD", + device->dev, &video_cooling_ops); + if (IS_ERR(device->cooling_dev)) { + /* + * Set cooling_dev to NULL so we don't crash trying to + * free it. + * Also, why the hell we are returning early and + * not attempt to register video output if cooling + * device registration failed? + * -- dtor + */ + device->cooling_dev = NULL; + return; + } + + dev_info(&device->dev->dev, "registered as cooling_device%d\n", + device->cooling_dev->id); + result = sysfs_create_link(&device->dev->dev.kobj, + &device->cooling_dev->device.kobj, + "thermal_cooling"); + if (result) + printk(KERN_ERR PREFIX "Create sysfs link\n"); + result = sysfs_create_link(&device->cooling_dev->device.kobj, + &device->dev->dev.kobj, "device"); + if (result) + printk(KERN_ERR PREFIX "Create sysfs link\n"); + } +} + +static int acpi_video_bus_register_backlight(struct acpi_video_bus *video) +{ + struct acpi_video_device *dev; + + mutex_lock(&video->device_list_lock); + list_for_each_entry(dev, &video->video_device_list, entry) + acpi_video_dev_register_backlight(dev); + mutex_unlock(&video->device_list_lock); + + video->pm_nb.notifier_call = acpi_video_resume; + video->pm_nb.priority = 0; + return register_pm_notifier(&video->pm_nb); +} + +static void acpi_video_dev_unregister_backlight(struct acpi_video_device *device) +{ + if (device->backlight) { + backlight_device_unregister(device->backlight); + device->backlight = NULL; + } + if (device->brightness) { + kfree(device->brightness->levels); + kfree(device->brightness); + device->brightness = NULL; + } + if (device->cooling_dev) { + sysfs_remove_link(&device->dev->dev.kobj, "thermal_cooling"); + sysfs_remove_link(&device->cooling_dev->device.kobj, "device"); + thermal_cooling_device_unregister(device->cooling_dev); + device->cooling_dev = NULL; + } +} + +static int acpi_video_bus_unregister_backlight(struct acpi_video_bus *video) +{ + struct acpi_video_device *dev; + int error = unregister_pm_notifier(&video->pm_nb); + + mutex_lock(&video->device_list_lock); + list_for_each_entry(dev, &video->video_device_list, entry) + acpi_video_dev_unregister_backlight(dev); + mutex_unlock(&video->device_list_lock); + + return error; +} + +static void acpi_video_dev_add_notify_handler(struct acpi_video_device *device) +{ + acpi_status status; + struct acpi_device *adev = device->dev; + + status = acpi_install_notify_handler(adev->handle, ACPI_DEVICE_NOTIFY, + acpi_video_device_notify, device); + if (ACPI_FAILURE(status)) + dev_err(&adev->dev, "Error installing notify handler\n"); + else + device->flags.notify = 1; +} + +static int acpi_video_bus_add_notify_handler(struct acpi_video_bus *video) +{ + struct input_dev *input; + struct acpi_video_device *dev; + int error; + + video->input = input = input_allocate_device(); + if (!input) { + error = -ENOMEM; + goto out; + } + + error = acpi_video_bus_start_devices(video); + if (error) + goto err_free_input; + + snprintf(video->phys, sizeof(video->phys), + "%s/video/input0", acpi_device_hid(video->device)); + + input->name = acpi_device_name(video->device); + input->phys = video->phys; + input->id.bustype = BUS_HOST; + input->id.product = 0x06; + input->dev.parent = &video->device->dev; + input->evbit[0] = BIT(EV_KEY); + set_bit(KEY_SWITCHVIDEOMODE, input->keybit); + set_bit(KEY_VIDEO_NEXT, input->keybit); + set_bit(KEY_VIDEO_PREV, input->keybit); + set_bit(KEY_BRIGHTNESS_CYCLE, input->keybit); + set_bit(KEY_BRIGHTNESSUP, input->keybit); + set_bit(KEY_BRIGHTNESSDOWN, input->keybit); + set_bit(KEY_BRIGHTNESS_ZERO, input->keybit); + set_bit(KEY_DISPLAY_OFF, input->keybit); + + error = input_register_device(input); + if (error) + goto err_stop_dev; + + mutex_lock(&video->device_list_lock); + list_for_each_entry(dev, &video->video_device_list, entry) + acpi_video_dev_add_notify_handler(dev); + mutex_unlock(&video->device_list_lock); + + return 0; + +err_stop_dev: + acpi_video_bus_stop_devices(video); +err_free_input: + input_free_device(input); + video->input = NULL; +out: + return error; +} + +static void acpi_video_dev_remove_notify_handler(struct acpi_video_device *dev) +{ + if (dev->flags.notify) { + acpi_remove_notify_handler(dev->dev->handle, ACPI_DEVICE_NOTIFY, + acpi_video_device_notify); + dev->flags.notify = 0; + } +} + +static void acpi_video_bus_remove_notify_handler(struct acpi_video_bus *video) +{ + struct acpi_video_device *dev; + + mutex_lock(&video->device_list_lock); + list_for_each_entry(dev, &video->video_device_list, entry) + acpi_video_dev_remove_notify_handler(dev); + mutex_unlock(&video->device_list_lock); + + acpi_video_bus_stop_devices(video); + input_unregister_device(video->input); + video->input = NULL; +} + +static int acpi_video_bus_put_devices(struct acpi_video_bus *video) +{ + struct acpi_video_device *dev, *next; + + mutex_lock(&video->device_list_lock); + list_for_each_entry_safe(dev, next, &video->video_device_list, entry) { + list_del(&dev->entry); + kfree(dev); + } + mutex_unlock(&video->device_list_lock); + + return 0; +} + static int instance; static int acpi_video_bus_add(struct acpi_device *device) { struct acpi_video_bus *video; - struct input_dev *input; int error; acpi_status status; @@ -1748,62 +1789,24 @@ static int acpi_video_bus_add(struct acpi_device *device) if (error) goto err_put_video; - video->input = input = input_allocate_device(); - if (!input) { - error = -ENOMEM; - goto err_put_video; - } - - error = acpi_video_bus_start_devices(video); - if (error) - goto err_free_input_dev; - - snprintf(video->phys, sizeof(video->phys), - "%s/video/input0", acpi_device_hid(video->device)); - - input->name = acpi_device_name(video->device); - input->phys = video->phys; - input->id.bustype = BUS_HOST; - input->id.product = 0x06; - input->dev.parent = &device->dev; - input->evbit[0] = BIT(EV_KEY); - set_bit(KEY_SWITCHVIDEOMODE, input->keybit); - set_bit(KEY_VIDEO_NEXT, input->keybit); - set_bit(KEY_VIDEO_PREV, input->keybit); - set_bit(KEY_BRIGHTNESS_CYCLE, input->keybit); - set_bit(KEY_BRIGHTNESSUP, input->keybit); - set_bit(KEY_BRIGHTNESSDOWN, input->keybit); - set_bit(KEY_BRIGHTNESS_ZERO, input->keybit); - set_bit(KEY_DISPLAY_OFF, input->keybit); - printk(KERN_INFO PREFIX "%s [%s] (multi-head: %s rom: %s post: %s)\n", ACPI_VIDEO_DEVICE_NAME, acpi_device_bid(device), video->flags.multihead ? "yes" : "no", video->flags.rom ? "yes" : "no", video->flags.post ? "yes" : "no"); + mutex_lock(&video_list_lock); + list_add_tail(&video->entry, &video_bus_head); + mutex_unlock(&video_list_lock); - video->pm_nb.notifier_call = acpi_video_resume; - video->pm_nb.priority = 0; - error = register_pm_notifier(&video->pm_nb); - if (error) - goto err_stop_video; - - error = input_register_device(input); - if (error) - goto err_unregister_pm_notifier; + acpi_video_bus_register_backlight(video); + acpi_video_bus_add_notify_handler(video); return 0; - err_unregister_pm_notifier: - unregister_pm_notifier(&video->pm_nb); - err_stop_video: - acpi_video_bus_stop_devices(video); - err_free_input_dev: - input_free_device(input); - err_put_video: +err_put_video: acpi_video_bus_put_devices(video); kfree(video->attached_array); - err_free_video: +err_free_video: kfree(video); device->driver_data = NULL; @@ -1820,12 +1823,14 @@ static int acpi_video_bus_remove(struct acpi_device *device) video = acpi_driver_data(device); - unregister_pm_notifier(&video->pm_nb); - - acpi_video_bus_stop_devices(video); + acpi_video_bus_remove_notify_handler(video); + acpi_video_bus_unregister_backlight(video); acpi_video_bus_put_devices(video); - input_unregister_device(video->input); + mutex_lock(&video_list_lock); + list_del(&video->entry); + mutex_unlock(&video_list_lock); + kfree(video->attached_array); kfree(video); @@ -1874,6 +1879,9 @@ int acpi_video_register(void) return 0; } + mutex_init(&video_list_lock); + INIT_LIST_HEAD(&video_bus_head); + result = acpi_bus_register_driver(&acpi_video_bus); if (result < 0) return -ENODEV; diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c index 940edbf2fe8f..84875fd4c74f 100644 --- a/drivers/acpi/video_detect.c +++ b/drivers/acpi/video_detect.c @@ -168,6 +168,14 @@ static struct dmi_system_id video_detect_dmi_table[] = { DMI_MATCH(DMI_PRODUCT_NAME, "UL30A"), }, }, + { + .callback = video_detect_force_vendor, + .ident = "Lenovo Yoga 13", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), + DMI_MATCH(DMI_PRODUCT_VERSION, "Lenovo IdeaPad Yoga 13"), + }, + }, { }, }; @@ -233,11 +241,11 @@ static void acpi_video_caps_check(void) acpi_video_get_capabilities(NULL); } -bool acpi_video_backlight_quirks(void) +bool acpi_osi_is_win8(void) { return acpi_gbl_osi_data >= ACPI_OSI_WIN_8; } -EXPORT_SYMBOL(acpi_video_backlight_quirks); +EXPORT_SYMBOL(acpi_osi_is_win8); /* Promote the vendor interface instead of the generic video module. * This function allow DMI blacklists to be implemented by externals |