diff options
Diffstat (limited to 'drivers/acpi')
41 files changed, 953 insertions, 1787 deletions
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig index 22327e6a7236..589da059ce39 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backwards compatibility, this option allows - deprecated power /proc/acpi/ directories to exist, even when - they have been replaced by functions in /sys.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 diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile index cdaf68b58b00..a55fc06db4ae 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 diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c index f37beaa32750..b9f0d5f4bba5 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 acpi_device *adev; + 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; - status = acpi_evaluate_integer(ac->device->handle, "_PSR", NULL, &ac->state); + status = acpi_evaluate_integer(ac->adev->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 +112,13 @@ 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; if (!ac) return; @@ -267,10 +141,10 @@ 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); + acpi_bus_generate_netlink_event(ac->adev->pnp.device_class, + dev_name(&ac->pdev->dev), + event, (u32) ac->state); + acpi_notifier_call_chain(ac->adev, event, (u32) ac->state); kobject_uevent(&ac->charger.dev->kobj, KOBJ_CHANGE); } @@ -295,53 +169,55 @@ 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; + result = acpi_bus_get_device(ACPI_HANDLE(&pdev->dev), &adev); + if (result) + 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->adev = adev; + 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 +232,7 @@ 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 +244,44 @@ 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 +289,16 @@ 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_ipmi.c b/drivers/acpi/acpi_ipmi.c index a6977e12d574..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> * * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ * @@ -23,60 +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; - spinlock_t 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. @@ -86,30 +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), @@ -121,29 +121,142 @@ 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; @@ -151,21 +264,31 @@ static void acpi_format_ipmi_msg(struct acpi_ipmi_msg *tx_msg, 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, @@ -179,14 +302,17 @@ static void acpi_format_ipmi_msg(struct acpi_ipmi_msg *tx_msg, /* Get the msgid */ device = tx_msg->device; + spin_lock_irqsave(&device->tx_msg_lock, flags); device->curr_msgid++; tx_msg->tx_msgid = device->curr_msgid; 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; @@ -195,110 +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); +} + +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; - /* wait for about 100ms to flush the tx message list */ - while (count--) { - if (list_empty(&ipmi->tx_msg_list)) + 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; } + spin_lock_irqsave(&ipmi_device->tx_msg_lock, flags); - list_for_each_entry(tx_msg, &ipmi_device->tx_msg_list, head) { + 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); + 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; } - 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; + /* 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; } + + /* 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) { @@ -307,34 +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; + goto err_lock; } - - 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; - } - 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; } @@ -342,23 +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 @@ -371,17 +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 @@ -391,118 +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); + 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); 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: - spin_lock_irqsave(&ipmi_device->tx_msg_lock, flags); - list_del(&tx_msg->head); - spin_unlock_irqrestore(&ipmi_device->tx_msg_lock, flags); - 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); - - spin_lock_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; @@ -516,13 +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_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..c20b02beec7c 100644 --- a/drivers/acpi/acpi_platform.c +++ b/drivers/acpi/acpi_platform.c @@ -29,7 +29,8 @@ ACPI_MODULE_NAME("platform"); static const struct acpi_device_id acpi_platform_device_ids[] = { { "PNP0D40" }, - + { "ACPI0003" }, + { "VPC2004" }, { } }; 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/acdebug.h b/drivers/acpi/acpica/acdebug.h index 9feba08c29fe..27c36a5251b5 100644 --- a/drivers/acpi/acpica/acdebug.h +++ b/drivers/acpi/acpica/acdebug.h @@ -113,11 +113,12 @@ void acpi_db_display_handlers(void); ACPI_HW_DEPENDENT_RETURN_VOID(void acpi_db_generate_gpe(char *gpe_arg, char *block_arg)) + ACPI_HW_DEPENDENT_RETURN_VOID(void acpi_db_generate_sci(void)) /* * dbconvert - miscellaneous conversion routines */ - acpi_status acpi_db_hex_char_to_value(int hex_char, u8 *return_value); +acpi_status acpi_db_hex_char_to_value(int hex_char, u8 *return_value); acpi_status acpi_db_convert_to_package(char *string, union acpi_object *object); @@ -154,6 +155,8 @@ void acpi_db_set_scope(char *name); void acpi_db_dump_namespace(char *start_arg, char *depth_arg); +void acpi_db_dump_namespace_paths(void); + void acpi_db_dump_namespace_by_owner(char *owner_arg, char *depth_arg); acpi_status acpi_db_find_name_in_namespace(char *name_arg); diff --git a/drivers/acpi/acpica/acevents.h b/drivers/acpi/acpica/acevents.h index ab0e97710381..3ae5fd02ae64 100644 --- a/drivers/acpi/acpica/acevents.h +++ b/drivers/acpi/acpica/acevents.h @@ -242,11 +242,11 @@ acpi_ev_initialize_region(union acpi_operand_object *region_obj, */ u32 ACPI_SYSTEM_XFACE acpi_ev_gpe_xrupt_handler(void *context); -u32 acpi_ev_install_sci_handler(void); +u32 acpi_ev_sci_dispatch(void); -acpi_status acpi_ev_remove_sci_handler(void); +u32 acpi_ev_install_sci_handler(void); -u32 acpi_ev_initialize_SCI(u32 program_SCI); +acpi_status acpi_ev_remove_all_sci_handlers(void); ACPI_HW_DEPENDENT_RETURN_VOID(void acpi_ev_terminate(void)) #endif /* __ACEVENTS_H__ */ diff --git a/drivers/acpi/acpica/acglobal.h b/drivers/acpi/acpica/acglobal.h index 90e846f985fa..0fba431f4fcb 100644 --- a/drivers/acpi/acpica/acglobal.h +++ b/drivers/acpi/acpica/acglobal.h @@ -269,6 +269,7 @@ ACPI_EXTERN acpi_table_handler acpi_gbl_table_handler; ACPI_EXTERN void *acpi_gbl_table_handler_context; ACPI_EXTERN struct acpi_walk_state *acpi_gbl_breakpoint_walk; ACPI_EXTERN acpi_interface_handler acpi_gbl_interface_handler; +ACPI_EXTERN struct acpi_sci_handler_info *acpi_gbl_sci_handler_list; /* Owner ID support */ @@ -445,13 +446,6 @@ ACPI_EXTERN u8 acpi_gbl_db_opt_tables; ACPI_EXTERN u8 acpi_gbl_db_opt_stats; ACPI_EXTERN u8 acpi_gbl_db_opt_ini_methods; ACPI_EXTERN u8 acpi_gbl_db_opt_no_region_support; - -ACPI_EXTERN char *acpi_gbl_db_args[ACPI_DEBUGGER_MAX_ARGS]; -ACPI_EXTERN acpi_object_type acpi_gbl_db_arg_types[ACPI_DEBUGGER_MAX_ARGS]; -ACPI_EXTERN char acpi_gbl_db_line_buf[ACPI_DB_LINE_BUFFER_SIZE]; -ACPI_EXTERN char acpi_gbl_db_parsed_buf[ACPI_DB_LINE_BUFFER_SIZE]; -ACPI_EXTERN char acpi_gbl_db_scope_buf[80]; -ACPI_EXTERN char acpi_gbl_db_debug_filename[80]; ACPI_EXTERN u8 acpi_gbl_db_output_to_file; ACPI_EXTERN char *acpi_gbl_db_buffer; ACPI_EXTERN char *acpi_gbl_db_filename; @@ -459,6 +453,16 @@ ACPI_EXTERN u32 acpi_gbl_db_debug_level; ACPI_EXTERN u32 acpi_gbl_db_console_debug_level; ACPI_EXTERN struct acpi_namespace_node *acpi_gbl_db_scope_node; +ACPI_EXTERN char *acpi_gbl_db_args[ACPI_DEBUGGER_MAX_ARGS]; +ACPI_EXTERN acpi_object_type acpi_gbl_db_arg_types[ACPI_DEBUGGER_MAX_ARGS]; + +/* These buffers should all be the same size */ + +ACPI_EXTERN char acpi_gbl_db_line_buf[ACPI_DB_LINE_BUFFER_SIZE]; +ACPI_EXTERN char acpi_gbl_db_parsed_buf[ACPI_DB_LINE_BUFFER_SIZE]; +ACPI_EXTERN char acpi_gbl_db_scope_buf[ACPI_DB_LINE_BUFFER_SIZE]; +ACPI_EXTERN char acpi_gbl_db_debug_filename[ACPI_DB_LINE_BUFFER_SIZE]; + /* * Statistic globals */ diff --git a/drivers/acpi/acpica/aclocal.h b/drivers/acpi/acpica/aclocal.h index 0ed00669cd21..be9e30ee6048 100644 --- a/drivers/acpi/acpica/aclocal.h +++ b/drivers/acpi/acpica/aclocal.h @@ -398,6 +398,14 @@ struct acpi_simple_repair_info { * ****************************************************************************/ +/* Dispatch info for each host-installed SCI handler */ + +struct acpi_sci_handler_info { + struct acpi_sci_handler_info *next; + acpi_sci_handler address; /* Address of handler */ + void *context; /* Context to be passed to handler */ +}; + /* Dispatch info for each GPE -- either a method or handler, cannot be both */ struct acpi_gpe_handler_info { diff --git a/drivers/acpi/acpica/acnamesp.h b/drivers/acpi/acpica/acnamesp.h index 40b04bd5579e..e6138ac4a160 100644 --- a/drivers/acpi/acpica/acnamesp.h +++ b/drivers/acpi/acpica/acnamesp.h @@ -213,6 +213,12 @@ acpi_ns_dump_objects(acpi_object_type type, u8 display_type, u32 max_depth, acpi_owner_id owner_id, acpi_handle start_handle); + +void +acpi_ns_dump_object_paths(acpi_object_type type, + u8 display_type, + u32 max_depth, + acpi_owner_id owner_id, acpi_handle start_handle); #endif /* ACPI_FUTURE_USAGE */ /* diff --git a/drivers/acpi/acpica/evgpeutil.c b/drivers/acpi/acpica/evgpeutil.c index b24dbb80fab8..d52339090b60 100644 --- a/drivers/acpi/acpica/evgpeutil.c +++ b/drivers/acpi/acpica/evgpeutil.c @@ -196,7 +196,7 @@ acpi_ev_get_gpe_device(struct acpi_gpe_xrupt_info *gpe_xrupt_info, * * FUNCTION: acpi_ev_get_gpe_xrupt_block * - * PARAMETERS: interrupt_number - Interrupt for a GPE block + * PARAMETERS: interrupt_number - Interrupt for a GPE block * * RETURN: A GPE interrupt block * diff --git a/drivers/acpi/acpica/evmisc.c b/drivers/acpi/acpica/evmisc.c index 1b111ef74903..a5687540e9a6 100644 --- a/drivers/acpi/acpica/evmisc.c +++ b/drivers/acpi/acpica/evmisc.c @@ -264,13 +264,6 @@ void acpi_ev_terminate(void) status = acpi_ev_walk_gpe_list(acpi_hw_disable_gpe_block, NULL); - /* Remove SCI handler */ - - status = acpi_ev_remove_sci_handler(); - if (ACPI_FAILURE(status)) { - ACPI_ERROR((AE_INFO, "Could not remove SCI handler")); - } - status = acpi_ev_remove_global_lock_handler(); if (ACPI_FAILURE(status)) { ACPI_ERROR((AE_INFO, @@ -280,6 +273,13 @@ void acpi_ev_terminate(void) acpi_gbl_events_initialized = FALSE; } + /* Remove SCI handlers */ + + status = acpi_ev_remove_all_sci_handlers(); + if (ACPI_FAILURE(status)) { + ACPI_ERROR((AE_INFO, "Could not remove SCI handler")); + } + /* Deallocate all handler objects installed within GPE info structs */ status = acpi_ev_walk_gpe_list(acpi_ev_delete_gpe_handlers, NULL); diff --git a/drivers/acpi/acpica/evregion.c b/drivers/acpi/acpica/evregion.c index cea14d6fc76c..6293d6bb6fe1 100644 --- a/drivers/acpi/acpica/evregion.c +++ b/drivers/acpi/acpica/evregion.c @@ -217,16 +217,11 @@ acpi_ev_address_space_dispatch(union acpi_operand_object *region_obj, if (!(region_obj->region.flags & AOPOBJ_SETUP_COMPLETE)) { region_obj->region.flags |= AOPOBJ_SETUP_COMPLETE; - if (region_obj2->extra.region_context) { - - /* The handler for this region was already installed */ - - ACPI_FREE(region_context); - } else { - /* - * Save the returned context for use in all accesses to - * this particular region - */ + /* + * Save the returned context for use in all accesses to + * the handler for this particular region + */ + if (!(region_obj2->extra.region_context)) { region_obj2->extra.region_context = region_context; } @@ -402,6 +397,14 @@ acpi_ev_detach_region(union acpi_operand_object *region_obj, handler_obj->address_space. context, region_context); + /* + * region_context should have been released by the deactivate + * operation. We don't need access to it anymore here. + */ + if (region_context) { + *region_context = NULL; + } + /* Init routine may fail, Just ignore errors */ if (ACPI_FAILURE(status)) { diff --git a/drivers/acpi/acpica/evsci.c b/drivers/acpi/acpica/evsci.c index b905acf7aacd..94d9ebddf575 100644 --- a/drivers/acpi/acpica/evsci.c +++ b/drivers/acpi/acpica/evsci.c @@ -54,6 +54,50 @@ static u32 ACPI_SYSTEM_XFACE acpi_ev_sci_xrupt_handler(void *context); /******************************************************************************* * + * FUNCTION: acpi_ev_sci_dispatch + * + * PARAMETERS: None + * + * RETURN: Status code indicates whether interrupt was handled. + * + * DESCRIPTION: Dispatch the SCI to all host-installed SCI handlers. + * + ******************************************************************************/ + +u32 acpi_ev_sci_dispatch(void) +{ + struct acpi_sci_handler_info *sci_handler; + acpi_cpu_flags flags; + u32 int_status = ACPI_INTERRUPT_NOT_HANDLED; + + ACPI_FUNCTION_NAME(ev_sci_dispatch); + + /* Are there any host-installed SCI handlers? */ + + if (!acpi_gbl_sci_handler_list) { + return (int_status); + } + + flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock); + + /* Invoke all host-installed SCI handlers */ + + sci_handler = acpi_gbl_sci_handler_list; + while (sci_handler) { + + /* Invoke the installed handler (at interrupt level) */ + + int_status |= sci_handler->address(sci_handler->context); + + sci_handler = sci_handler->next; + } + + acpi_os_release_lock(acpi_gbl_gpe_lock, flags); + return (int_status); +} + +/******************************************************************************* + * * FUNCTION: acpi_ev_sci_xrupt_handler * * PARAMETERS: context - Calling Context @@ -89,6 +133,10 @@ static u32 ACPI_SYSTEM_XFACE acpi_ev_sci_xrupt_handler(void *context) */ interrupt_handled |= acpi_ev_gpe_detect(gpe_xrupt_list); + /* Invoke all host-installed SCI handlers */ + + interrupt_handled |= acpi_ev_sci_dispatch(); + return_UINT32(interrupt_handled); } @@ -112,14 +160,13 @@ u32 ACPI_SYSTEM_XFACE acpi_ev_gpe_xrupt_handler(void *context) ACPI_FUNCTION_TRACE(ev_gpe_xrupt_handler); /* - * We are guaranteed by the ACPI CA initialization/shutdown code that + * We are guaranteed by the ACPICA initialization/shutdown code that * if this interrupt handler is installed, ACPI is enabled. */ /* GPEs: Check for and dispatch any GPEs that have occurred */ interrupt_handled |= acpi_ev_gpe_detect(gpe_xrupt_list); - return_UINT32(interrupt_handled); } @@ -150,15 +197,15 @@ u32 acpi_ev_install_sci_handler(void) /****************************************************************************** * - * FUNCTION: acpi_ev_remove_sci_handler + * FUNCTION: acpi_ev_remove_all_sci_handlers * * PARAMETERS: none * - * RETURN: E_OK if handler uninstalled OK, E_ERROR if handler was not + * RETURN: AE_OK if handler uninstalled, AE_ERROR if handler was not * installed to begin with * * DESCRIPTION: Remove the SCI interrupt handler. No further SCIs will be - * taken. + * taken. Remove all host-installed SCI handlers. * * Note: It doesn't seem important to disable all events or set the event * enable registers to their original values. The OS should disable @@ -167,11 +214,13 @@ u32 acpi_ev_install_sci_handler(void) * ******************************************************************************/ -acpi_status acpi_ev_remove_sci_handler(void) +acpi_status acpi_ev_remove_all_sci_handlers(void) { + struct acpi_sci_handler_info *sci_handler; + acpi_cpu_flags flags; acpi_status status; - ACPI_FUNCTION_TRACE(ev_remove_sci_handler); + ACPI_FUNCTION_TRACE(ev_remove_all_sci_handlers); /* Just let the OS remove the handler and disable the level */ @@ -179,6 +228,21 @@ acpi_status acpi_ev_remove_sci_handler(void) acpi_os_remove_interrupt_handler((u32) acpi_gbl_FADT.sci_interrupt, acpi_ev_sci_xrupt_handler); + if (!acpi_gbl_sci_handler_list) { + return (status); + } + + flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock); + + /* Free all host-installed SCI handlers */ + + while (acpi_gbl_sci_handler_list) { + sci_handler = acpi_gbl_sci_handler_list; + acpi_gbl_sci_handler_list = sci_handler->next; + ACPI_FREE(sci_handler); + } + + acpi_os_release_lock(acpi_gbl_gpe_lock, flags); return_ACPI_STATUS(status); } diff --git a/drivers/acpi/acpica/evxface.c b/drivers/acpi/acpica/evxface.c index ca5fba99c33b..6f56146a6f88 100644 --- a/drivers/acpi/acpica/evxface.c +++ b/drivers/acpi/acpica/evxface.c @@ -385,6 +385,144 @@ ACPI_EXPORT_SYMBOL(acpi_install_exception_handler) #if (!ACPI_REDUCED_HARDWARE) /******************************************************************************* * + * FUNCTION: acpi_install_sci_handler + * + * PARAMETERS: address - Address of the handler + * context - Value passed to the handler on each SCI + * + * RETURN: Status + * + * DESCRIPTION: Install a handler for a System Control Interrupt. + * + ******************************************************************************/ +acpi_status acpi_install_sci_handler(acpi_sci_handler address, void *context) +{ + struct acpi_sci_handler_info *new_sci_handler; + struct acpi_sci_handler_info *sci_handler; + acpi_cpu_flags flags; + acpi_status status; + + ACPI_FUNCTION_TRACE(acpi_install_sci_handler); + + if (!address) { + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + /* Allocate and init a handler object */ + + new_sci_handler = ACPI_ALLOCATE(sizeof(struct acpi_sci_handler_info)); + if (!new_sci_handler) { + return_ACPI_STATUS(AE_NO_MEMORY); + } + + new_sci_handler->address = address; + new_sci_handler->context = context; + + status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS); + if (ACPI_FAILURE(status)) { + goto exit; + } + + /* Lock list during installation */ + + flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock); + sci_handler = acpi_gbl_sci_handler_list; + + /* Ensure handler does not already exist */ + + while (sci_handler) { + if (address == sci_handler->address) { + status = AE_ALREADY_EXISTS; + goto unlock_and_exit; + } + + sci_handler = sci_handler->next; + } + + /* Install the new handler into the global list (at head) */ + + new_sci_handler->next = acpi_gbl_sci_handler_list; + acpi_gbl_sci_handler_list = new_sci_handler; + + unlock_and_exit: + + acpi_os_release_lock(acpi_gbl_gpe_lock, flags); + (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS); + + exit: + if (ACPI_FAILURE(status)) { + ACPI_FREE(new_sci_handler); + } + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * + * FUNCTION: acpi_remove_sci_handler + * + * PARAMETERS: address - Address of the handler + * + * RETURN: Status + * + * DESCRIPTION: Remove a handler for a System Control Interrupt. + * + ******************************************************************************/ + +acpi_status acpi_remove_sci_handler(acpi_sci_handler address) +{ + struct acpi_sci_handler_info *prev_sci_handler; + struct acpi_sci_handler_info *next_sci_handler; + acpi_cpu_flags flags; + acpi_status status; + + ACPI_FUNCTION_TRACE(acpi_remove_sci_handler); + + if (!address) { + return_ACPI_STATUS(AE_BAD_PARAMETER); + } + + status = acpi_ut_acquire_mutex(ACPI_MTX_EVENTS); + if (ACPI_FAILURE(status)) { + return_ACPI_STATUS(status); + } + + /* Remove the SCI handler with lock */ + + flags = acpi_os_acquire_lock(acpi_gbl_gpe_lock); + + prev_sci_handler = NULL; + next_sci_handler = acpi_gbl_sci_handler_list; + while (next_sci_handler) { + if (next_sci_handler->address == address) { + + /* Unlink and free the SCI handler info block */ + + if (prev_sci_handler) { + prev_sci_handler->next = next_sci_handler->next; + } else { + acpi_gbl_sci_handler_list = + next_sci_handler->next; + } + + acpi_os_release_lock(acpi_gbl_gpe_lock, flags); + ACPI_FREE(next_sci_handler); + goto unlock_and_exit; + } + + prev_sci_handler = next_sci_handler; + next_sci_handler = next_sci_handler->next; + } + + acpi_os_release_lock(acpi_gbl_gpe_lock, flags); + status = AE_NOT_EXIST; + + unlock_and_exit: + (void)acpi_ut_release_mutex(ACPI_MTX_EVENTS); + return_ACPI_STATUS(status); +} + +/******************************************************************************* + * * FUNCTION: acpi_install_global_event_handler * * PARAMETERS: handler - Pointer to the global event handler function @@ -398,6 +536,7 @@ ACPI_EXPORT_SYMBOL(acpi_install_exception_handler) * Can be used to update event counters, etc. * ******************************************************************************/ + acpi_status acpi_install_global_event_handler(acpi_gbl_event_handler handler, void *context) { diff --git a/drivers/acpi/acpica/hwxface.c b/drivers/acpi/acpica/hwxface.c index 5ee7a814cd92..f81fb068d20e 100644 --- a/drivers/acpi/acpica/hwxface.c +++ b/drivers/acpi/acpica/hwxface.c @@ -119,7 +119,8 @@ ACPI_EXPORT_SYMBOL(acpi_reset) ******************************************************************************/ acpi_status acpi_read(u64 *return_value, struct acpi_generic_address *reg) { - u32 value; + u32 value_lo; + u32 value_hi; u32 width; u64 address; acpi_status status; @@ -137,13 +138,8 @@ acpi_status acpi_read(u64 *return_value, struct acpi_generic_address *reg) return (status); } - /* Initialize entire 64-bit return value to zero */ - - *return_value = 0; - value = 0; - /* - * Two address spaces supported: Memory or IO. PCI_Config is + * Two address spaces supported: Memory or I/O. PCI_Config is * not supported here because the GAS structure is insufficient */ if (reg->space_id == ACPI_ADR_SPACE_SYSTEM_MEMORY) { @@ -155,29 +151,35 @@ acpi_status acpi_read(u64 *return_value, struct acpi_generic_address *reg) } } else { /* ACPI_ADR_SPACE_SYSTEM_IO, validated earlier */ + value_lo = 0; + value_hi = 0; + width = reg->bit_width; if (width == 64) { width = 32; /* Break into two 32-bit transfers */ } status = acpi_hw_read_port((acpi_io_address) - address, &value, width); + address, &value_lo, width); if (ACPI_FAILURE(status)) { return (status); } - *return_value = value; if (reg->bit_width == 64) { /* Read the top 32 bits */ status = acpi_hw_read_port((acpi_io_address) - (address + 4), &value, 32); + (address + 4), &value_hi, + 32); if (ACPI_FAILURE(status)) { return (status); } - *return_value |= ((u64)value << 32); } + + /* Set the return value only if status is AE_OK */ + + *return_value = (value_lo | ((u64)value_hi << 32)); } ACPI_DEBUG_PRINT((ACPI_DB_IO, @@ -186,7 +188,7 @@ acpi_status acpi_read(u64 *return_value, struct acpi_generic_address *reg) ACPI_FORMAT_UINT64(address), acpi_ut_get_region_name(reg->space_id))); - return (status); + return (AE_OK); } ACPI_EXPORT_SYMBOL(acpi_read) diff --git a/drivers/acpi/acpica/nsaccess.c b/drivers/acpi/acpica/nsaccess.c index c5316e5bd4ab..aff79c7392ff 100644 --- a/drivers/acpi/acpica/nsaccess.c +++ b/drivers/acpi/acpica/nsaccess.c @@ -424,8 +424,9 @@ acpi_ns_lookup(union acpi_generic_state *scope_info, /* Current scope has no parent scope */ ACPI_ERROR((AE_INFO, - "ACPI path has too many parent prefixes (^) " - "- reached beyond root node")); + "%s: Path has too many parent prefixes (^) " + "- reached beyond root node", + pathname)); return_ACPI_STATUS(AE_NOT_FOUND); } } diff --git a/drivers/acpi/acpica/nsdump.c b/drivers/acpi/acpica/nsdump.c index 7418c77fde8c..80633851cb2f 100644 --- a/drivers/acpi/acpica/nsdump.c +++ b/drivers/acpi/acpica/nsdump.c @@ -59,6 +59,17 @@ acpi_ns_dump_one_device(acpi_handle obj_handle, #endif #if defined(ACPI_DEBUG_OUTPUT) || defined(ACPI_DEBUGGER) + +#ifdef ACPI_FUTURE_USAGE +static acpi_status +acpi_ns_dump_one_object_path(acpi_handle obj_handle, + u32 level, void *context, void **return_value); + +static acpi_status +acpi_ns_get_max_depth(acpi_handle obj_handle, + u32 level, void *context, void **return_value); +#endif /* ACPI_FUTURE_USAGE */ + /******************************************************************************* * * FUNCTION: acpi_ns_print_pathname @@ -671,6 +682,129 @@ acpi_ns_dump_objects(acpi_object_type type, } #endif /* ACPI_FUTURE_USAGE */ +#ifdef ACPI_FUTURE_USAGE +/******************************************************************************* + * + * FUNCTION: acpi_ns_dump_one_object_path, acpi_ns_get_max_depth + * + * PARAMETERS: obj_handle - Node to be dumped + * level - Nesting level of the handle + * context - Passed into walk_namespace + * return_value - Not used + * + * RETURN: Status + * + * DESCRIPTION: Dump the full pathname to a namespace object. acp_ns_get_max_depth + * computes the maximum nesting depth in the namespace tree, in + * order to simplify formatting in acpi_ns_dump_one_object_path. + * These procedures are user_functions called by acpi_ns_walk_namespace. + * + ******************************************************************************/ + +static acpi_status +acpi_ns_dump_one_object_path(acpi_handle obj_handle, + u32 level, void *context, void **return_value) +{ + u32 max_level = *((u32 *)context); + char *pathname; + struct acpi_namespace_node *node; + int path_indent; + + if (!obj_handle) { + return (AE_OK); + } + + node = acpi_ns_validate_handle(obj_handle); + pathname = acpi_ns_get_external_pathname(node); + + path_indent = 1; + if (level <= max_level) { + path_indent = max_level - level + 1; + } + + acpi_os_printf("%2d%*s%-12s%*s", + level, level, " ", acpi_ut_get_type_name(node->type), + path_indent, " "); + + acpi_os_printf("%s\n", &pathname[1]); + ACPI_FREE(pathname); + return (AE_OK); +} + +static acpi_status +acpi_ns_get_max_depth(acpi_handle obj_handle, + u32 level, void *context, void **return_value) +{ + u32 *max_level = (u32 *)context; + + if (level > *max_level) { + *max_level = level; + } + return (AE_OK); +} + +/******************************************************************************* + * + * FUNCTION: acpi_ns_dump_object_paths + * + * PARAMETERS: type - Object type to be dumped + * display_type - 0 or ACPI_DISPLAY_SUMMARY + * max_depth - Maximum depth of dump. Use ACPI_UINT32_MAX + * for an effectively unlimited depth. + * owner_id - Dump only objects owned by this ID. Use + * ACPI_UINT32_MAX to match all owners. + * start_handle - Where in namespace to start/end search + * + * RETURN: None + * + * DESCRIPTION: Dump full object pathnames within the loaded namespace. Uses + * acpi_ns_walk_namespace in conjunction with acpi_ns_dump_one_object_path. + * + ******************************************************************************/ + +void +acpi_ns_dump_object_paths(acpi_object_type type, + u8 display_type, + u32 max_depth, + acpi_owner_id owner_id, acpi_handle start_handle) +{ + acpi_status status; + u32 max_level = 0; + + ACPI_FUNCTION_ENTRY(); + + /* + * Just lock the entire namespace for the duration of the dump. + * We don't want any changes to the namespace during this time, + * especially the temporary nodes since we are going to display + * them also. + */ + status = acpi_ut_acquire_mutex(ACPI_MTX_NAMESPACE); + if (ACPI_FAILURE(status)) { + acpi_os_printf("Could not acquire namespace mutex\n"); + return; + } + + /* Get the max depth of the namespace tree, for formatting later */ + + (void)acpi_ns_walk_namespace(type, start_handle, max_depth, + ACPI_NS_WALK_NO_UNLOCK | + ACPI_NS_WALK_TEMP_NODES, + acpi_ns_get_max_depth, NULL, + (void *)&max_level, NULL); + + /* Now dump the entire namespace */ + + (void)acpi_ns_walk_namespace(type, start_handle, max_depth, + ACPI_NS_WALK_NO_UNLOCK | + ACPI_NS_WALK_TEMP_NODES, + acpi_ns_dump_one_object_path, NULL, + (void *)&max_level, NULL); + + (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); +} +#endif /* ACPI_FUTURE_USAGE */ + /******************************************************************************* * * FUNCTION: acpi_ns_dump_entry diff --git a/drivers/acpi/acpica/nsxfeval.c b/drivers/acpi/acpica/nsxfeval.c index b38b4b07f86e..481a6b4a9b2f 100644 --- a/drivers/acpi/acpica/nsxfeval.c +++ b/drivers/acpi/acpica/nsxfeval.c @@ -605,11 +605,19 @@ acpi_walk_namespace(acpi_object_type type, goto unlock_and_exit; } + /* Now we can validate the starting node */ + + if (!acpi_ns_validate_handle(start_object)) { + status = AE_BAD_PARAMETER; + goto unlock_and_exit2; + } + status = acpi_ns_walk_namespace(type, start_object, max_depth, ACPI_NS_WALK_UNLOCK, descending_callback, ascending_callback, context, return_value); + unlock_and_exit2: (void)acpi_ut_release_mutex(ACPI_MTX_NAMESPACE); unlock_and_exit: diff --git a/drivers/acpi/acpica/tbinstal.c b/drivers/acpi/acpica/tbinstal.c index 42a13c0d7015..9e6788f9ba0f 100644 --- a/drivers/acpi/acpica/tbinstal.c +++ b/drivers/acpi/acpica/tbinstal.c @@ -80,16 +80,10 @@ acpi_status acpi_tb_verify_table(struct acpi_table_desc *table_desc) } } - /* FACS is the odd table, has no standard ACPI header and no checksum */ + /* Always calculate checksum, ignore bad checksum if requested */ - if (!ACPI_COMPARE_NAME(&table_desc->signature, ACPI_SIG_FACS)) { - - /* Always calculate checksum, ignore bad checksum if requested */ - - status = - acpi_tb_verify_checksum(table_desc->pointer, - table_desc->length); - } + status = + acpi_tb_verify_checksum(table_desc->pointer, table_desc->length); return_ACPI_STATUS(status); } diff --git a/drivers/acpi/acpica/tbprint.c b/drivers/acpi/acpica/tbprint.c index dc963f823d2c..9a47715af1f3 100644 --- a/drivers/acpi/acpica/tbprint.c +++ b/drivers/acpi/acpica/tbprint.c @@ -138,7 +138,7 @@ acpi_tb_print_table_header(acpi_physical_address address, ACPI_INFO((AE_INFO, "%4.4s %p %05X", header->signature, ACPI_CAST_PTR(void, address), header->length)); - } else if (ACPI_COMPARE_NAME(header->signature, ACPI_SIG_RSDP)) { + } else if (ACPI_VALIDATE_RSDP_SIG(header->signature)) { /* RSDP has no common fields */ @@ -190,6 +190,16 @@ acpi_status acpi_tb_verify_checksum(struct acpi_table_header *table, u32 length) { u8 checksum; + /* + * FACS/S3PT: + * They are the odd tables, have no standard ACPI header and no checksum + */ + + if (ACPI_COMPARE_NAME(table->signature, ACPI_SIG_S3PT) || + ACPI_COMPARE_NAME(table->signature, ACPI_SIG_FACS)) { + return (AE_OK); + } + /* Compute the checksum on the table */ checksum = acpi_tb_checksum(ACPI_CAST_PTR(u8, table), length); diff --git a/drivers/acpi/acpica/tbxfroot.c b/drivers/acpi/acpica/tbxfroot.c index 948c95e80d44..1c95fabbe6a4 100644 --- a/drivers/acpi/acpica/tbxfroot.c +++ b/drivers/acpi/acpica/tbxfroot.c @@ -68,8 +68,7 @@ acpi_status acpi_tb_validate_rsdp(struct acpi_table_rsdp *rsdp) * Note: Sometimes there exists more than one RSDP in memory; the valid * RSDP has a valid checksum, all others have an invalid checksum. */ - if (ACPI_STRNCMP((char *)rsdp->signature, ACPI_SIG_RSDP, - sizeof(ACPI_SIG_RSDP) - 1) != 0) { + if (!ACPI_VALIDATE_RSDP_SIG(rsdp->signature)) { /* Nope, BAD Signature */ diff --git a/drivers/acpi/acpica/utdebug.c b/drivers/acpi/acpica/utdebug.c index 5796e11a0671..ffd0db509d34 100644 --- a/drivers/acpi/acpica/utdebug.c +++ b/drivers/acpi/acpica/utdebug.c @@ -190,7 +190,7 @@ acpi_debug_print(u32 requested_debug_level, * Display the module name, current line number, thread ID (if requested), * current procedure nesting level, and the current procedure name */ - acpi_os_printf("%8s-%04ld ", module_name, line_number); + acpi_os_printf("%9s-%04ld ", module_name, line_number); if (ACPI_LV_THREADS & acpi_dbg_level) { acpi_os_printf("[%u] ", (u32)thread_id); diff --git a/drivers/acpi/acpica/utglobal.c b/drivers/acpi/acpica/utglobal.c index d6f26bf8a062..046d5b059c07 100644 --- a/drivers/acpi/acpica/utglobal.c +++ b/drivers/acpi/acpica/utglobal.c @@ -291,7 +291,7 @@ acpi_status acpi_ut_init_globals(void) #if (!ACPI_REDUCED_HARDWARE) - /* GPE support */ + /* GPE/SCI support */ acpi_gbl_all_gpes_initialized = FALSE; acpi_gbl_gpe_xrupt_list_head = NULL; @@ -300,6 +300,7 @@ acpi_status acpi_ut_init_globals(void) acpi_current_gpe_count = 0; acpi_gbl_global_event_handler = NULL; + acpi_gbl_sci_handler_list = NULL; #endif /* !ACPI_REDUCED_HARDWARE */ 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/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 ca723a4c120a..d42b2fb5a7e9 100644 --- a/drivers/acpi/device_pm.c +++ b/drivers/acpi/device_pm.c @@ -1027,60 +1027,4 @@ 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..ca86c1ce7c8a 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) 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/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..88bb9d05b038 100644 --- a/drivers/acpi/osl.c +++ b/drivers/acpi/osl.c @@ -569,8 +569,10 @@ 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 +581,6 @@ 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 +625,8 @@ 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 +652,34 @@ 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 */ 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..40fc773ab6e0 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, }; diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c index f98dd00b51a9..35c8f2bbcc40 100644 --- a/drivers/acpi/processor_idle.c +++ b/drivers/acpi/processor_idle.c @@ -272,9 +272,6 @@ 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; @@ -1076,12 +1073,8 @@ 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 +1101,6 @@ 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 +1173,6 @@ 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/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 407ad13cac2f..fee8a297c7d9 100644 --- a/drivers/acpi/scan.c +++ b/drivers/acpi/scan.c @@ -999,7 +999,6 @@ 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) { diff --git a/drivers/acpi/sysfs.c b/drivers/acpi/sysfs.c index 05306a59aedc..bb6045c5385b 100644 --- a/drivers/acpi/sysfs.c +++ b/drivers/acpi/sysfs.c @@ -762,13 +762,8 @@ 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; |