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-rw-r--r--drivers/acpi/Kconfig27
-rw-r--r--drivers/acpi/Makefile2
-rw-r--r--drivers/acpi/ac.c36
-rw-r--r--drivers/acpi/asus_acpi.c55
-rw-r--r--drivers/acpi/battery.c60
-rw-r--r--drivers/acpi/bay.c6
-rw-r--r--drivers/acpi/blacklist.c383
-rw-r--r--drivers/acpi/bus.c20
-rw-r--r--drivers/acpi/debug.c57
-rw-r--r--drivers/acpi/dispatcher/dsobject.c91
-rw-r--r--drivers/acpi/dock.c6
-rw-r--r--drivers/acpi/ec.c139
-rw-r--r--drivers/acpi/events/evregion.c8
-rw-r--r--drivers/acpi/fan.c40
-rw-r--r--drivers/acpi/hardware/hwsleep.c79
-rw-r--r--drivers/acpi/numa.c4
-rw-r--r--drivers/acpi/osl.c206
-rw-r--r--drivers/acpi/pci_bind.c3
-rw-r--r--drivers/acpi/pci_irq.c9
-rw-r--r--drivers/acpi/pci_link.c2
-rw-r--r--drivers/acpi/processor_core.c50
-rw-r--r--drivers/acpi/processor_idle.c187
-rw-r--r--drivers/acpi/processor_throttling.c318
-rw-r--r--drivers/acpi/sbs.c91
-rw-r--r--drivers/acpi/sbshc.c17
-rw-r--r--drivers/acpi/sbshc.h6
-rw-r--r--drivers/acpi/scan.c108
-rw-r--r--drivers/acpi/sleep/main.c144
-rw-r--r--drivers/acpi/sleep/proc.c46
-rw-r--r--drivers/acpi/sleep/sleep.h2
-rw-r--r--drivers/acpi/system.c13
-rw-r--r--drivers/acpi/tables/Makefile2
-rw-r--r--drivers/acpi/tables/tbutils.c2
-rw-r--r--drivers/acpi/tables/tbxfroot.c4
-rw-r--r--drivers/acpi/thermal.c17
-rw-r--r--drivers/acpi/utilities/utresrc.c2
-rw-r--r--drivers/acpi/video.c208
37 files changed, 1891 insertions, 559 deletions
diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
index 087a7028ae84..ccf6ea95f68c 100644
--- a/drivers/acpi/Kconfig
+++ b/drivers/acpi/Kconfig
@@ -50,7 +50,6 @@ config ACPI_SLEEP
50config ACPI_PROCFS 50config ACPI_PROCFS
51 bool "Deprecated /proc/acpi files" 51 bool "Deprecated /proc/acpi files"
52 depends on PROC_FS 52 depends on PROC_FS
53 default y
54 ---help--- 53 ---help---
55 For backwards compatibility, this option allows 54 For backwards compatibility, this option allows
56 deprecated /proc/acpi/ files to exist, even when 55 deprecated /proc/acpi/ files to exist, even when
@@ -61,7 +60,6 @@ config ACPI_PROCFS
61 /proc/acpi/info (/sys/modules/acpi/parameters/acpica_version) 60 /proc/acpi/info (/sys/modules/acpi/parameters/acpica_version)
62 /proc/acpi/dsdt (/sys/firmware/acpi/tables/DSDT) 61 /proc/acpi/dsdt (/sys/firmware/acpi/tables/DSDT)
63 /proc/acpi/fadt (/sys/firmware/acpi/tables/FACP) 62 /proc/acpi/fadt (/sys/firmware/acpi/tables/FACP)
64 /proc/acpi/battery (/sys/class/power_supply)
65 /proc/acpi/debug_layer (/sys/module/acpi/parameters/debug_layer) 63 /proc/acpi/debug_layer (/sys/module/acpi/parameters/debug_layer)
66 /proc/acpi/debug_level (/sys/module/acpi/parameters/debug_level) 64 /proc/acpi/debug_level (/sys/module/acpi/parameters/debug_level)
67 65
@@ -69,7 +67,27 @@ config ACPI_PROCFS
69 and functions which do not yet exist in /sys. 67 and functions which do not yet exist in /sys.
70 68
71 Say N to delete /proc/acpi/ files that have moved to /sys/ 69 Say N to delete /proc/acpi/ files that have moved to /sys/
72 70config ACPI_PROCFS_POWER
71 bool "Deprecated power /proc/acpi folders"
72 depends on PROC_FS
73 default y
74 ---help---
75 For backwards compatibility, this option allows
76 deprecated power /proc/acpi/ folders to exist, even when
77 they have been replaced by functions in /sys.
78 The deprecated folders (and their replacements) include:
79 /proc/acpi/battery/* (/sys/class/power_supply/*)
80 /proc/acpi/ac_adapter/* (sys/class/power_supply/*)
81 This option has no effect on /proc/acpi/ folders
82 and functions, which do not yet exist in /sys
83
84 Say N to delete power /proc/acpi/ folders that have moved to /sys/
85config ACPI_SYSFS_POWER
86 bool "Future power /sys interface"
87 select POWER_SUPPLY
88 default y
89 ---help---
90 Say N to disable power /sys interface
73config ACPI_PROC_EVENT 91config ACPI_PROC_EVENT
74 bool "Deprecated /proc/acpi/event support" 92 bool "Deprecated /proc/acpi/event support"
75 depends on PROC_FS 93 depends on PROC_FS
@@ -91,7 +109,6 @@ config ACPI_PROC_EVENT
91config ACPI_AC 109config ACPI_AC
92 tristate "AC Adapter" 110 tristate "AC Adapter"
93 depends on X86 111 depends on X86
94 select POWER_SUPPLY
95 default y 112 default y
96 help 113 help
97 This driver adds support for the AC Adapter object, which indicates 114 This driver adds support for the AC Adapter object, which indicates
@@ -101,7 +118,6 @@ config ACPI_AC
101config ACPI_BATTERY 118config ACPI_BATTERY
102 tristate "Battery" 119 tristate "Battery"
103 depends on X86 120 depends on X86
104 select POWER_SUPPLY
105 default y 121 default y
106 help 122 help
107 This driver adds support for battery information through 123 This driver adds support for battery information through
@@ -356,7 +372,6 @@ config ACPI_HOTPLUG_MEMORY
356config ACPI_SBS 372config ACPI_SBS
357 tristate "Smart Battery System" 373 tristate "Smart Battery System"
358 depends on X86 374 depends on X86
359 select POWER_SUPPLY
360 help 375 help
361 This driver adds support for the Smart Battery System, another 376 This driver adds support for the Smart Battery System, another
362 type of access to battery information, found on some laptops. 377 type of access to battery information, found on some laptops.
diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile
index 54e3ab0e5fc0..456446f90077 100644
--- a/drivers/acpi/Makefile
+++ b/drivers/acpi/Makefile
@@ -58,6 +58,6 @@ obj-$(CONFIG_ACPI_NUMA) += numa.o
58obj-$(CONFIG_ACPI_ASUS) += asus_acpi.o 58obj-$(CONFIG_ACPI_ASUS) += asus_acpi.o
59obj-$(CONFIG_ACPI_TOSHIBA) += toshiba_acpi.o 59obj-$(CONFIG_ACPI_TOSHIBA) += toshiba_acpi.o
60obj-$(CONFIG_ACPI_HOTPLUG_MEMORY) += acpi_memhotplug.o 60obj-$(CONFIG_ACPI_HOTPLUG_MEMORY) += acpi_memhotplug.o
61obj-y += cm_sbs.o 61obj-$(CONFIG_ACPI_PROCFS_POWER) += cm_sbs.o
62obj-$(CONFIG_ACPI_SBS) += sbs.o 62obj-$(CONFIG_ACPI_SBS) += sbs.o
63obj-$(CONFIG_ACPI_SBS) += sbshc.o 63obj-$(CONFIG_ACPI_SBS) += sbshc.o
diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c
index 30238f6ff232..76b9bea98b6d 100644
--- a/drivers/acpi/ac.c
+++ b/drivers/acpi/ac.c
@@ -27,11 +27,13 @@
27#include <linux/module.h> 27#include <linux/module.h>
28#include <linux/init.h> 28#include <linux/init.h>
29#include <linux/types.h> 29#include <linux/types.h>
30#ifdef CONFIG_ACPI_PROCFS 30#ifdef CONFIG_ACPI_PROCFS_POWER
31#include <linux/proc_fs.h> 31#include <linux/proc_fs.h>
32#include <linux/seq_file.h> 32#include <linux/seq_file.h>
33#endif 33#endif
34#ifdef CONFIG_ACPI_SYSFS_POWER
34#include <linux/power_supply.h> 35#include <linux/power_supply.h>
36#endif
35#include <acpi/acpi_bus.h> 37#include <acpi/acpi_bus.h>
36#include <acpi/acpi_drivers.h> 38#include <acpi/acpi_drivers.h>
37 39
@@ -51,7 +53,7 @@ MODULE_AUTHOR("Paul Diefenbaugh");
51MODULE_DESCRIPTION("ACPI AC Adapter Driver"); 53MODULE_DESCRIPTION("ACPI AC Adapter Driver");
52MODULE_LICENSE("GPL"); 54MODULE_LICENSE("GPL");
53 55
54#ifdef CONFIG_ACPI_PROCFS 56#ifdef CONFIG_ACPI_PROCFS_POWER
55extern struct proc_dir_entry *acpi_lock_ac_dir(void); 57extern struct proc_dir_entry *acpi_lock_ac_dir(void);
56extern void *acpi_unlock_ac_dir(struct proc_dir_entry *acpi_ac_dir); 58extern void *acpi_unlock_ac_dir(struct proc_dir_entry *acpi_ac_dir);
57static int acpi_ac_open_fs(struct inode *inode, struct file *file); 59static int acpi_ac_open_fs(struct inode *inode, struct file *file);
@@ -79,14 +81,16 @@ static struct acpi_driver acpi_ac_driver = {
79}; 81};
80 82
81struct acpi_ac { 83struct acpi_ac {
84#ifdef CONFIG_ACPI_SYSFS_POWER
82 struct power_supply charger; 85 struct power_supply charger;
86#endif
83 struct acpi_device * device; 87 struct acpi_device * device;
84 unsigned long state; 88 unsigned long state;
85}; 89};
86 90
87#define to_acpi_ac(x) container_of(x, struct acpi_ac, charger); 91#define to_acpi_ac(x) container_of(x, struct acpi_ac, charger);
88 92
89#ifdef CONFIG_ACPI_PROCFS 93#ifdef CONFIG_ACPI_PROCFS_POWER
90static const struct file_operations acpi_ac_fops = { 94static const struct file_operations acpi_ac_fops = {
91 .open = acpi_ac_open_fs, 95 .open = acpi_ac_open_fs,
92 .read = seq_read, 96 .read = seq_read,
@@ -94,7 +98,7 @@ static const struct file_operations acpi_ac_fops = {
94 .release = single_release, 98 .release = single_release,
95}; 99};
96#endif 100#endif
97 101#ifdef CONFIG_ACPI_SYSFS_POWER
98static int get_ac_property(struct power_supply *psy, 102static int get_ac_property(struct power_supply *psy,
99 enum power_supply_property psp, 103 enum power_supply_property psp,
100 union power_supply_propval *val) 104 union power_supply_propval *val)
@@ -113,7 +117,7 @@ static int get_ac_property(struct power_supply *psy,
113static enum power_supply_property ac_props[] = { 117static enum power_supply_property ac_props[] = {
114 POWER_SUPPLY_PROP_ONLINE, 118 POWER_SUPPLY_PROP_ONLINE,
115}; 119};
116 120#endif
117/* -------------------------------------------------------------------------- 121/* --------------------------------------------------------------------------
118 AC Adapter Management 122 AC Adapter Management
119 -------------------------------------------------------------------------- */ 123 -------------------------------------------------------------------------- */
@@ -136,7 +140,7 @@ static int acpi_ac_get_state(struct acpi_ac *ac)
136 return 0; 140 return 0;
137} 141}
138 142
139#ifdef CONFIG_ACPI_PROCFS 143#ifdef CONFIG_ACPI_PROCFS_POWER
140/* -------------------------------------------------------------------------- 144/* --------------------------------------------------------------------------
141 FS Interface (/proc) 145 FS Interface (/proc)
142 -------------------------------------------------------------------------- */ 146 -------------------------------------------------------------------------- */
@@ -241,7 +245,9 @@ static void acpi_ac_notify(acpi_handle handle, u32 event, void *data)
241 acpi_bus_generate_netlink_event(device->pnp.device_class, 245 acpi_bus_generate_netlink_event(device->pnp.device_class,
242 device->dev.bus_id, event, 246 device->dev.bus_id, event,
243 (u32) ac->state); 247 (u32) ac->state);
248#ifdef CONFIG_ACPI_SYSFS_POWER
244 kobject_uevent(&ac->charger.dev->kobj, KOBJ_CHANGE); 249 kobject_uevent(&ac->charger.dev->kobj, KOBJ_CHANGE);
250#endif
245 break; 251 break;
246 default: 252 default:
247 ACPI_DEBUG_PRINT((ACPI_DB_INFO, 253 ACPI_DEBUG_PRINT((ACPI_DB_INFO,
@@ -275,17 +281,19 @@ static int acpi_ac_add(struct acpi_device *device)
275 if (result) 281 if (result)
276 goto end; 282 goto end;
277 283
278#ifdef CONFIG_ACPI_PROCFS 284#ifdef CONFIG_ACPI_PROCFS_POWER
279 result = acpi_ac_add_fs(device); 285 result = acpi_ac_add_fs(device);
280#endif 286#endif
281 if (result) 287 if (result)
282 goto end; 288 goto end;
289#ifdef CONFIG_ACPI_SYSFS_POWER
283 ac->charger.name = acpi_device_bid(device); 290 ac->charger.name = acpi_device_bid(device);
284 ac->charger.type = POWER_SUPPLY_TYPE_MAINS; 291 ac->charger.type = POWER_SUPPLY_TYPE_MAINS;
285 ac->charger.properties = ac_props; 292 ac->charger.properties = ac_props;
286 ac->charger.num_properties = ARRAY_SIZE(ac_props); 293 ac->charger.num_properties = ARRAY_SIZE(ac_props);
287 ac->charger.get_property = get_ac_property; 294 ac->charger.get_property = get_ac_property;
288 power_supply_register(&ac->device->dev, &ac->charger); 295 power_supply_register(&ac->device->dev, &ac->charger);
296#endif
289 status = acpi_install_notify_handler(device->handle, 297 status = acpi_install_notify_handler(device->handle,
290 ACPI_ALL_NOTIFY, acpi_ac_notify, 298 ACPI_ALL_NOTIFY, acpi_ac_notify,
291 ac); 299 ac);
@@ -300,7 +308,7 @@ static int acpi_ac_add(struct acpi_device *device)
300 308
301 end: 309 end:
302 if (result) { 310 if (result) {
303#ifdef CONFIG_ACPI_PROCFS 311#ifdef CONFIG_ACPI_PROCFS_POWER
304 acpi_ac_remove_fs(device); 312 acpi_ac_remove_fs(device);
305#endif 313#endif
306 kfree(ac); 314 kfree(ac);
@@ -319,8 +327,10 @@ static int acpi_ac_resume(struct acpi_device *device)
319 old_state = ac->state; 327 old_state = ac->state;
320 if (acpi_ac_get_state(ac)) 328 if (acpi_ac_get_state(ac))
321 return 0; 329 return 0;
330#ifdef CONFIG_ACPI_SYSFS_POWER
322 if (old_state != ac->state) 331 if (old_state != ac->state)
323 kobject_uevent(&ac->charger.dev->kobj, KOBJ_CHANGE); 332 kobject_uevent(&ac->charger.dev->kobj, KOBJ_CHANGE);
333#endif
324 return 0; 334 return 0;
325} 335}
326 336
@@ -337,9 +347,11 @@ static int acpi_ac_remove(struct acpi_device *device, int type)
337 347
338 status = acpi_remove_notify_handler(device->handle, 348 status = acpi_remove_notify_handler(device->handle,
339 ACPI_ALL_NOTIFY, acpi_ac_notify); 349 ACPI_ALL_NOTIFY, acpi_ac_notify);
350#ifdef CONFIG_ACPI_SYSFS_POWER
340 if (ac->charger.dev) 351 if (ac->charger.dev)
341 power_supply_unregister(&ac->charger); 352 power_supply_unregister(&ac->charger);
342#ifdef CONFIG_ACPI_PROCFS 353#endif
354#ifdef CONFIG_ACPI_PROCFS_POWER
343 acpi_ac_remove_fs(device); 355 acpi_ac_remove_fs(device);
344#endif 356#endif
345 357
@@ -355,7 +367,7 @@ static int __init acpi_ac_init(void)
355 if (acpi_disabled) 367 if (acpi_disabled)
356 return -ENODEV; 368 return -ENODEV;
357 369
358#ifdef CONFIG_ACPI_PROCFS 370#ifdef CONFIG_ACPI_PROCFS_POWER
359 acpi_ac_dir = acpi_lock_ac_dir(); 371 acpi_ac_dir = acpi_lock_ac_dir();
360 if (!acpi_ac_dir) 372 if (!acpi_ac_dir)
361 return -ENODEV; 373 return -ENODEV;
@@ -363,7 +375,7 @@ static int __init acpi_ac_init(void)
363 375
364 result = acpi_bus_register_driver(&acpi_ac_driver); 376 result = acpi_bus_register_driver(&acpi_ac_driver);
365 if (result < 0) { 377 if (result < 0) {
366#ifdef CONFIG_ACPI_PROCFS 378#ifdef CONFIG_ACPI_PROCFS_POWER
367 acpi_unlock_ac_dir(acpi_ac_dir); 379 acpi_unlock_ac_dir(acpi_ac_dir);
368#endif 380#endif
369 return -ENODEV; 381 return -ENODEV;
@@ -377,7 +389,7 @@ static void __exit acpi_ac_exit(void)
377 389
378 acpi_bus_unregister_driver(&acpi_ac_driver); 390 acpi_bus_unregister_driver(&acpi_ac_driver);
379 391
380#ifdef CONFIG_ACPI_PROCFS 392#ifdef CONFIG_ACPI_PROCFS_POWER
381 acpi_unlock_ac_dir(acpi_ac_dir); 393 acpi_unlock_ac_dir(acpi_ac_dir);
382#endif 394#endif
383 395
diff --git a/drivers/acpi/asus_acpi.c b/drivers/acpi/asus_acpi.c
index d915fec9bf63..d25ef961415c 100644
--- a/drivers/acpi/asus_acpi.c
+++ b/drivers/acpi/asus_acpi.c
@@ -142,6 +142,7 @@ struct asus_hotk {
142 xxN, //M2400N, M3700N, M5200N, M6800N, S1300N, S5200N 142 xxN, //M2400N, M3700N, M5200N, M6800N, S1300N, S5200N
143 A4S, //Z81sp 143 A4S, //Z81sp
144 //(Centrino) 144 //(Centrino)
145 F3Sa,
145 END_MODEL 146 END_MODEL
146 } model; //Models currently supported 147 } model; //Models currently supported
147 u16 event_count[128]; //count for each event TODO make this better 148 u16 event_count[128]; //count for each event TODO make this better
@@ -405,7 +406,20 @@ static struct model_data model_conf[END_MODEL] = {
405 .brightness_get = "GPLV", 406 .brightness_get = "GPLV",
406 .mt_bt_switch = "BLED", 407 .mt_bt_switch = "BLED",
407 .mt_wled = "WLED" 408 .mt_wled = "WLED"
408 } 409 },
410
411 {
412 .name = "F3Sa",
413 .mt_bt_switch = "BLED",
414 .mt_wled = "WLED",
415 .mt_mled = "MLED",
416 .brightness_get = "GPLV",
417 .brightness_set = "SPLV",
418 .mt_lcd_switch = "\\_SB.PCI0.SBRG.EC0._Q10",
419 .lcd_status = "\\_SB.PCI0.SBRG.EC0.RPIN",
420 .display_get = "\\ADVG",
421 .display_set = "SDSP",
422 },
409 423
410}; 424};
411 425
@@ -710,15 +724,8 @@ static int get_lcd_state(void)
710{ 724{
711 int lcd = 0; 725 int lcd = 0;
712 726
713 if (hotk->model != L3H) { 727 if (hotk->model == L3H) {
714 /* We don't have to check anything if we are here */ 728 /* L3H and the like have to be handled differently */
715 if (!read_acpi_int(NULL, hotk->methods->lcd_status, &lcd))
716 printk(KERN_WARNING
717 "Asus ACPI: Error reading LCD status\n");
718
719 if (hotk->model == L2D)
720 lcd = ~lcd;
721 } else { /* L3H and the like have to be handled differently */
722 acpi_status status = 0; 729 acpi_status status = 0;
723 struct acpi_object_list input; 730 struct acpi_object_list input;
724 union acpi_object mt_params[2]; 731 union acpi_object mt_params[2];
@@ -745,6 +752,32 @@ static int get_lcd_state(void)
745 if (out_obj.type == ACPI_TYPE_INTEGER) 752 if (out_obj.type == ACPI_TYPE_INTEGER)
746 /* That's what the AML code does */ 753 /* That's what the AML code does */
747 lcd = out_obj.integer.value >> 8; 754 lcd = out_obj.integer.value >> 8;
755 } else if (hotk->model == F3Sa) {
756 unsigned long tmp;
757 union acpi_object param;
758 struct acpi_object_list input;
759 acpi_status status;
760
761 /* Read pin 11 */
762 param.type = ACPI_TYPE_INTEGER;
763 param.integer.value = 0x11;
764 input.count = 1;
765 input.pointer = &param;
766
767 status = acpi_evaluate_integer(NULL, hotk->methods->lcd_status,
768 &input, &tmp);
769 if (status != AE_OK)
770 return -1;
771
772 lcd = tmp;
773 } else {
774 /* We don't have to check anything if we are here */
775 if (!read_acpi_int(NULL, hotk->methods->lcd_status, &lcd))
776 printk(KERN_WARNING
777 "Asus ACPI: Error reading LCD status\n");
778
779 if (hotk->model == L2D)
780 lcd = ~lcd;
748 } 781 }
749 782
750 return (lcd & 1); 783 return (lcd & 1);
@@ -1134,6 +1167,8 @@ static int asus_model_match(char *model)
1134 return W5A; 1167 return W5A;
1135 else if (strncmp(model, "A4S", 3) == 0) 1168 else if (strncmp(model, "A4S", 3) == 0)
1136 return A4S; 1169 return A4S;
1170 else if (strncmp(model, "F3Sa", 4) == 0)
1171 return F3Sa;
1137 else 1172 else
1138 return END_MODEL; 1173 return END_MODEL;
1139} 1174}
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index 192c244f6190..f6215e809808 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -31,7 +31,7 @@
31#include <linux/types.h> 31#include <linux/types.h>
32#include <linux/jiffies.h> 32#include <linux/jiffies.h>
33 33
34#ifdef CONFIG_ACPI_PROCFS 34#ifdef CONFIG_ACPI_PROCFS_POWER
35#include <linux/proc_fs.h> 35#include <linux/proc_fs.h>
36#include <linux/seq_file.h> 36#include <linux/seq_file.h>
37#include <asm/uaccess.h> 37#include <asm/uaccess.h>
@@ -40,7 +40,9 @@
40#include <acpi/acpi_bus.h> 40#include <acpi/acpi_bus.h>
41#include <acpi/acpi_drivers.h> 41#include <acpi/acpi_drivers.h>
42 42
43#ifdef CONFIG_ACPI_SYSFS_POWER
43#include <linux/power_supply.h> 44#include <linux/power_supply.h>
45#endif
44 46
45#define ACPI_BATTERY_VALUE_UNKNOWN 0xFFFFFFFF 47#define ACPI_BATTERY_VALUE_UNKNOWN 0xFFFFFFFF
46 48
@@ -63,7 +65,7 @@ static unsigned int cache_time = 1000;
63module_param(cache_time, uint, 0644); 65module_param(cache_time, uint, 0644);
64MODULE_PARM_DESC(cache_time, "cache time in milliseconds"); 66MODULE_PARM_DESC(cache_time, "cache time in milliseconds");
65 67
66#ifdef CONFIG_ACPI_PROCFS 68#ifdef CONFIG_ACPI_PROCFS_POWER
67extern struct proc_dir_entry *acpi_lock_battery_dir(void); 69extern struct proc_dir_entry *acpi_lock_battery_dir(void);
68extern void *acpi_unlock_battery_dir(struct proc_dir_entry *acpi_battery_dir); 70extern void *acpi_unlock_battery_dir(struct proc_dir_entry *acpi_battery_dir);
69 71
@@ -86,7 +88,9 @@ MODULE_DEVICE_TABLE(acpi, battery_device_ids);
86 88
87struct acpi_battery { 89struct acpi_battery {
88 struct mutex lock; 90 struct mutex lock;
91#ifdef CONFIG_ACPI_SYSFS_POWER
89 struct power_supply bat; 92 struct power_supply bat;
93#endif
90 struct acpi_device *device; 94 struct acpi_device *device;
91 unsigned long update_time; 95 unsigned long update_time;
92 int current_now; 96 int current_now;
@@ -117,6 +121,7 @@ inline int acpi_battery_present(struct acpi_battery *battery)
117 return battery->device->status.battery_present; 121 return battery->device->status.battery_present;
118} 122}
119 123
124#ifdef CONFIG_ACPI_SYSFS_POWER
120static int acpi_battery_technology(struct acpi_battery *battery) 125static int acpi_battery_technology(struct acpi_battery *battery)
121{ 126{
122 if (!strcasecmp("NiCd", battery->type)) 127 if (!strcasecmp("NiCd", battery->type))
@@ -125,7 +130,7 @@ static int acpi_battery_technology(struct acpi_battery *battery)
125 return POWER_SUPPLY_TECHNOLOGY_NiMH; 130 return POWER_SUPPLY_TECHNOLOGY_NiMH;
126 if (!strcasecmp("LION", battery->type)) 131 if (!strcasecmp("LION", battery->type))
127 return POWER_SUPPLY_TECHNOLOGY_LION; 132 return POWER_SUPPLY_TECHNOLOGY_LION;
128 if (!strcasecmp("LI-ION", battery->type)) 133 if (!strncasecmp("LI-ION", battery->type, 6))
129 return POWER_SUPPLY_TECHNOLOGY_LION; 134 return POWER_SUPPLY_TECHNOLOGY_LION;
130 if (!strcasecmp("LiP", battery->type)) 135 if (!strcasecmp("LiP", battery->type))
131 return POWER_SUPPLY_TECHNOLOGY_LIPO; 136 return POWER_SUPPLY_TECHNOLOGY_LIPO;
@@ -153,6 +158,8 @@ static int acpi_battery_get_property(struct power_supply *psy,
153 val->intval = POWER_SUPPLY_STATUS_CHARGING; 158 val->intval = POWER_SUPPLY_STATUS_CHARGING;
154 else if (battery->state == 0) 159 else if (battery->state == 0)
155 val->intval = POWER_SUPPLY_STATUS_FULL; 160 val->intval = POWER_SUPPLY_STATUS_FULL;
161 else
162 val->intval = POWER_SUPPLY_STATUS_UNKNOWN;
156 break; 163 break;
157 case POWER_SUPPLY_PROP_PRESENT: 164 case POWER_SUPPLY_PROP_PRESENT:
158 val->intval = acpi_battery_present(battery); 165 val->intval = acpi_battery_present(battery);
@@ -187,6 +194,9 @@ static int acpi_battery_get_property(struct power_supply *psy,
187 case POWER_SUPPLY_PROP_MANUFACTURER: 194 case POWER_SUPPLY_PROP_MANUFACTURER:
188 val->strval = battery->oem_info; 195 val->strval = battery->oem_info;
189 break; 196 break;
197 case POWER_SUPPLY_PROP_SERIAL_NUMBER:
198 val->strval = battery->serial_number;
199 break;
190 default: 200 default:
191 return -EINVAL; 201 return -EINVAL;
192 } 202 }
@@ -205,6 +215,7 @@ static enum power_supply_property charge_battery_props[] = {
205 POWER_SUPPLY_PROP_CHARGE_NOW, 215 POWER_SUPPLY_PROP_CHARGE_NOW,
206 POWER_SUPPLY_PROP_MODEL_NAME, 216 POWER_SUPPLY_PROP_MODEL_NAME,
207 POWER_SUPPLY_PROP_MANUFACTURER, 217 POWER_SUPPLY_PROP_MANUFACTURER,
218 POWER_SUPPLY_PROP_SERIAL_NUMBER,
208}; 219};
209 220
210static enum power_supply_property energy_battery_props[] = { 221static enum power_supply_property energy_battery_props[] = {
@@ -219,9 +230,11 @@ static enum power_supply_property energy_battery_props[] = {
219 POWER_SUPPLY_PROP_ENERGY_NOW, 230 POWER_SUPPLY_PROP_ENERGY_NOW,
220 POWER_SUPPLY_PROP_MODEL_NAME, 231 POWER_SUPPLY_PROP_MODEL_NAME,
221 POWER_SUPPLY_PROP_MANUFACTURER, 232 POWER_SUPPLY_PROP_MANUFACTURER,
233 POWER_SUPPLY_PROP_SERIAL_NUMBER,
222}; 234};
235#endif
223 236
224#ifdef CONFIG_ACPI_PROCFS 237#ifdef CONFIG_ACPI_PROCFS_POWER
225inline char *acpi_battery_units(struct acpi_battery *battery) 238inline char *acpi_battery_units(struct acpi_battery *battery)
226{ 239{
227 return (battery->power_unit)?"mA":"mW"; 240 return (battery->power_unit)?"mA":"mW";
@@ -396,6 +409,7 @@ static int acpi_battery_init_alarm(struct acpi_battery *battery)
396 return acpi_battery_set_alarm(battery); 409 return acpi_battery_set_alarm(battery);
397} 410}
398 411
412#ifdef CONFIG_ACPI_SYSFS_POWER
399static ssize_t acpi_battery_alarm_show(struct device *dev, 413static ssize_t acpi_battery_alarm_show(struct device *dev,
400 struct device_attribute *attr, 414 struct device_attribute *attr,
401 char *buf) 415 char *buf)
@@ -427,11 +441,6 @@ static int sysfs_add_battery(struct acpi_battery *battery)
427{ 441{
428 int result; 442 int result;
429 443
430 battery->update_time = 0;
431 result = acpi_battery_get_info(battery);
432 acpi_battery_init_alarm(battery);
433 if (result)
434 return result;
435 if (battery->power_unit) { 444 if (battery->power_unit) {
436 battery->bat.properties = charge_battery_props; 445 battery->bat.properties = charge_battery_props;
437 battery->bat.num_properties = 446 battery->bat.num_properties =
@@ -460,18 +469,31 @@ static void sysfs_remove_battery(struct acpi_battery *battery)
460 power_supply_unregister(&battery->bat); 469 power_supply_unregister(&battery->bat);
461 battery->bat.dev = NULL; 470 battery->bat.dev = NULL;
462} 471}
472#endif
463 473
464static int acpi_battery_update(struct acpi_battery *battery) 474static int acpi_battery_update(struct acpi_battery *battery)
465{ 475{
466 int result = acpi_battery_get_status(battery); 476 int result;
477 result = acpi_battery_get_status(battery);
467 if (result) 478 if (result)
468 return result; 479 return result;
480#ifdef CONFIG_ACPI_SYSFS_POWER
469 if (!acpi_battery_present(battery)) { 481 if (!acpi_battery_present(battery)) {
470 sysfs_remove_battery(battery); 482 sysfs_remove_battery(battery);
483 battery->update_time = 0;
471 return 0; 484 return 0;
472 } 485 }
486#endif
487 if (!battery->update_time) {
488 result = acpi_battery_get_info(battery);
489 if (result)
490 return result;
491 acpi_battery_init_alarm(battery);
492 }
493#ifdef CONFIG_ACPI_SYSFS_POWER
473 if (!battery->bat.dev) 494 if (!battery->bat.dev)
474 sysfs_add_battery(battery); 495 sysfs_add_battery(battery);
496#endif
475 return acpi_battery_get_state(battery); 497 return acpi_battery_get_state(battery);
476} 498}
477 499
@@ -479,7 +501,7 @@ static int acpi_battery_update(struct acpi_battery *battery)
479 FS Interface (/proc) 501 FS Interface (/proc)
480 -------------------------------------------------------------------------- */ 502 -------------------------------------------------------------------------- */
481 503
482#ifdef CONFIG_ACPI_PROCFS 504#ifdef CONFIG_ACPI_PROCFS_POWER
483static struct proc_dir_entry *acpi_battery_dir; 505static struct proc_dir_entry *acpi_battery_dir;
484 506
485static int acpi_battery_print_info(struct seq_file *seq, int result) 507static int acpi_battery_print_info(struct seq_file *seq, int result)
@@ -765,9 +787,11 @@ static void acpi_battery_notify(acpi_handle handle, u32 event, void *data)
765 acpi_bus_generate_netlink_event(device->pnp.device_class, 787 acpi_bus_generate_netlink_event(device->pnp.device_class,
766 device->dev.bus_id, event, 788 device->dev.bus_id, event,
767 acpi_battery_present(battery)); 789 acpi_battery_present(battery));
790#ifdef CONFIG_ACPI_SYSFS_POWER
768 /* acpi_batter_update could remove power_supply object */ 791 /* acpi_batter_update could remove power_supply object */
769 if (battery->bat.dev) 792 if (battery->bat.dev)
770 kobject_uevent(&battery->bat.dev->kobj, KOBJ_CHANGE); 793 kobject_uevent(&battery->bat.dev->kobj, KOBJ_CHANGE);
794#endif
771} 795}
772 796
773static int acpi_battery_add(struct acpi_device *device) 797static int acpi_battery_add(struct acpi_device *device)
@@ -786,7 +810,7 @@ static int acpi_battery_add(struct acpi_device *device)
786 acpi_driver_data(device) = battery; 810 acpi_driver_data(device) = battery;
787 mutex_init(&battery->lock); 811 mutex_init(&battery->lock);
788 acpi_battery_update(battery); 812 acpi_battery_update(battery);
789#ifdef CONFIG_ACPI_PROCFS 813#ifdef CONFIG_ACPI_PROCFS_POWER
790 result = acpi_battery_add_fs(device); 814 result = acpi_battery_add_fs(device);
791 if (result) 815 if (result)
792 goto end; 816 goto end;
@@ -804,7 +828,7 @@ static int acpi_battery_add(struct acpi_device *device)
804 device->status.battery_present ? "present" : "absent"); 828 device->status.battery_present ? "present" : "absent");
805 end: 829 end:
806 if (result) { 830 if (result) {
807#ifdef CONFIG_ACPI_PROCFS 831#ifdef CONFIG_ACPI_PROCFS_POWER
808 acpi_battery_remove_fs(device); 832 acpi_battery_remove_fs(device);
809#endif 833#endif
810 kfree(battery); 834 kfree(battery);
@@ -823,10 +847,12 @@ static int acpi_battery_remove(struct acpi_device *device, int type)
823 status = acpi_remove_notify_handler(device->handle, 847 status = acpi_remove_notify_handler(device->handle,
824 ACPI_ALL_NOTIFY, 848 ACPI_ALL_NOTIFY,
825 acpi_battery_notify); 849 acpi_battery_notify);
826#ifdef CONFIG_ACPI_PROCFS 850#ifdef CONFIG_ACPI_PROCFS_POWER
827 acpi_battery_remove_fs(device); 851 acpi_battery_remove_fs(device);
828#endif 852#endif
853#ifdef CONFIG_ACPI_SYSFS_POWER
829 sysfs_remove_battery(battery); 854 sysfs_remove_battery(battery);
855#endif
830 mutex_destroy(&battery->lock); 856 mutex_destroy(&battery->lock);
831 kfree(battery); 857 kfree(battery);
832 return 0; 858 return 0;
@@ -859,13 +885,13 @@ static int __init acpi_battery_init(void)
859{ 885{
860 if (acpi_disabled) 886 if (acpi_disabled)
861 return -ENODEV; 887 return -ENODEV;
862#ifdef CONFIG_ACPI_PROCFS 888#ifdef CONFIG_ACPI_PROCFS_POWER
863 acpi_battery_dir = acpi_lock_battery_dir(); 889 acpi_battery_dir = acpi_lock_battery_dir();
864 if (!acpi_battery_dir) 890 if (!acpi_battery_dir)
865 return -ENODEV; 891 return -ENODEV;
866#endif 892#endif
867 if (acpi_bus_register_driver(&acpi_battery_driver) < 0) { 893 if (acpi_bus_register_driver(&acpi_battery_driver) < 0) {
868#ifdef CONFIG_ACPI_PROCFS 894#ifdef CONFIG_ACPI_PROCFS_POWER
869 acpi_unlock_battery_dir(acpi_battery_dir); 895 acpi_unlock_battery_dir(acpi_battery_dir);
870#endif 896#endif
871 return -ENODEV; 897 return -ENODEV;
@@ -876,7 +902,7 @@ static int __init acpi_battery_init(void)
876static void __exit acpi_battery_exit(void) 902static void __exit acpi_battery_exit(void)
877{ 903{
878 acpi_bus_unregister_driver(&acpi_battery_driver); 904 acpi_bus_unregister_driver(&acpi_battery_driver);
879#ifdef CONFIG_ACPI_PROCFS 905#ifdef CONFIG_ACPI_PROCFS_POWER
880 acpi_unlock_battery_dir(acpi_battery_dir); 906 acpi_unlock_battery_dir(acpi_battery_dir);
881#endif 907#endif
882} 908}
diff --git a/drivers/acpi/bay.c b/drivers/acpi/bay.c
index 6daf6088ac88..477711435b24 100644
--- a/drivers/acpi/bay.c
+++ b/drivers/acpi/bay.c
@@ -46,6 +46,12 @@ MODULE_LICENSE("GPL");
46 printk(KERN_DEBUG PREFIX "%s: %s\n", prefix, s); } 46 printk(KERN_DEBUG PREFIX "%s: %s\n", prefix, s); }
47static void bay_notify(acpi_handle handle, u32 event, void *data); 47static void bay_notify(acpi_handle handle, u32 event, void *data);
48 48
49static const struct acpi_device_id bay_device_ids[] = {
50 {"LNXIOBAY", 0},
51 {"", 0},
52};
53MODULE_DEVICE_TABLE(acpi, bay_device_ids);
54
49struct bay { 55struct bay {
50 acpi_handle handle; 56 acpi_handle handle;
51 char *name; 57 char *name;
diff --git a/drivers/acpi/blacklist.c b/drivers/acpi/blacklist.c
index 3ec110ce00c8..3ade01680989 100644
--- a/drivers/acpi/blacklist.c
+++ b/drivers/acpi/blacklist.c
@@ -3,6 +3,7 @@
3 * 3 *
4 * Check to see if the given machine has a known bad ACPI BIOS 4 * Check to see if the given machine has a known bad ACPI BIOS
5 * or if the BIOS is too old. 5 * or if the BIOS is too old.
6 * Check given machine against acpi_osi_dmi_table[].
6 * 7 *
7 * Copyright (C) 2004 Len Brown <len.brown@intel.com> 8 * Copyright (C) 2004 Len Brown <len.brown@intel.com>
8 * Copyright (C) 2002 Andy Grover <andrew.grover@intel.com> 9 * Copyright (C) 2002 Andy Grover <andrew.grover@intel.com>
@@ -50,6 +51,8 @@ struct acpi_blacklist_item {
50 u32 is_critical_error; 51 u32 is_critical_error;
51}; 52};
52 53
54static struct dmi_system_id acpi_osi_dmi_table[] __initdata;
55
53/* 56/*
54 * POLICY: If *anything* doesn't work, put it on the blacklist. 57 * POLICY: If *anything* doesn't work, put it on the blacklist.
55 * If they are critical errors, mark it critical, and abort driver load. 58 * If they are critical errors, mark it critical, and abort driver load.
@@ -67,8 +70,6 @@ static struct acpi_blacklist_item acpi_blacklist[] __initdata = {
67 /* IBM 600E - _ADR should return 7, but it returns 1 */ 70 /* IBM 600E - _ADR should return 7, but it returns 1 */
68 {"IBM ", "TP600E ", 0x00000105, ACPI_SIG_DSDT, less_than_or_equal, 71 {"IBM ", "TP600E ", 0x00000105, ACPI_SIG_DSDT, less_than_or_equal,
69 "Incorrect _ADR", 1}, 72 "Incorrect _ADR", 1},
70 {"ASUS\0\0", "P2B-S ", 0, ACPI_SIG_DSDT, all_versions,
71 "Bogus PCI routing", 1},
72 73
73 {""} 74 {""}
74}; 75};
@@ -165,5 +166,383 @@ int __init acpi_blacklisted(void)
165 166
166 blacklisted += blacklist_by_year(); 167 blacklisted += blacklist_by_year();
167 168
169 dmi_check_system(acpi_osi_dmi_table);
170
168 return blacklisted; 171 return blacklisted;
169} 172}
173#ifdef CONFIG_DMI
174static int __init dmi_enable_osi_linux(const struct dmi_system_id *d)
175{
176 acpi_dmi_osi_linux(1, d); /* enable */
177 return 0;
178}
179static int __init dmi_disable_osi_linux(const struct dmi_system_id *d)
180{
181 acpi_dmi_osi_linux(0, d); /* disable */
182 return 0;
183}
184static int __init dmi_unknown_osi_linux(const struct dmi_system_id *d)
185{
186 acpi_dmi_osi_linux(-1, d); /* unknown */
187 return 0;
188}
189
190/*
191 * Most BIOS that invoke OSI(Linux) do nothing with it.
192 * But some cause Linux to break.
193 * Only a couple use it to make Linux run better.
194 *
195 * Thus, Linux should continue to disable OSI(Linux) by default,
196 * should continue to discourage BIOS writers from using it, and
197 * should whitelist the few existing systems that require it.
198 *
199 * If it appears clear a vendor isn't using OSI(Linux)
200 * for anything constructive, blacklist them by name to disable
201 * unnecessary dmesg warnings on all of their products.
202 */
203
204static struct dmi_system_id acpi_osi_dmi_table[] __initdata = {
205 /*
206 * Disable OSI(Linux) warnings on all "Acer, inc."
207 *
208 * _OSI(Linux) disables the latest Windows BIOS code:
209 * DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5050"),
210 * DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5580"),
211 * DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 3010"),
212 * _OSI(Linux) effect unknown:
213 * DMI_MATCH(DMI_PRODUCT_NAME, "Ferrari 5000"),
214 */
215 {
216 .callback = dmi_disable_osi_linux,
217 .ident = "Acer, inc.",
218 .matches = {
219 DMI_MATCH(DMI_SYS_VENDOR, "Acer, inc."),
220 },
221 },
222 /*
223 * Disable OSI(Linux) warnings on all "Acer"
224 *
225 * _OSI(Linux) effect unknown:
226 * DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5100"),
227 * DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 5610"),
228 * DMI_MATCH(DMI_PRODUCT_NAME, "Aspire 7720Z"),
229 * DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 5520"),
230 * DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 6460"),
231 * DMI_MATCH(DMI_PRODUCT_NAME, "TravelMate 7510"),
232 * DMI_MATCH(DMI_PRODUCT_NAME, "Extensa 5220"),
233 */
234 {
235 .callback = dmi_unknown_osi_linux,
236 .ident = "Acer",
237 .matches = {
238 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
239 },
240 },
241 /*
242 * Disable OSI(Linux) warnings on all "Apple Computer, Inc."
243 *
244 * _OSI(Linux) confirmed to be a NOP:
245 * DMI_MATCH(DMI_PRODUCT_NAME, "MacBook1,1"),
246 * DMI_MATCH(DMI_PRODUCT_NAME, "MacBook2,1"),
247 * DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro2,2"),
248 * _OSI(Linux) effect unknown:
249 * DMI_MATCH(DMI_PRODUCT_NAME, "MacPro2,1"),
250 * DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro1,1"),
251 * DMI_MATCH(DMI_PRODUCT_NAME, "MacBookPro3,1"),
252 */
253 {
254 .callback = dmi_disable_osi_linux,
255 .ident = "Apple",
256 .matches = {
257 DMI_MATCH(DMI_SYS_VENDOR, "Apple Computer, Inc."),
258 },
259 },
260 /*
261 * Disable OSI(Linux) warnings on all "BenQ"
262 *
263 * _OSI(Linux) confirmed to be a NOP:
264 * DMI_MATCH(DMI_PRODUCT_NAME, "Joybook S31"),
265 */
266 {
267 .callback = dmi_disable_osi_linux,
268 .ident = "BenQ",
269 .matches = {
270 DMI_MATCH(DMI_SYS_VENDOR, "BenQ"),
271 },
272 },
273 /*
274 * Disable OSI(Linux) warnings on all "Clevo Co."
275 *
276 * _OSI(Linux) confirmed to be a NOP:
277 * DMI_MATCH(DMI_PRODUCT_NAME, "M570RU"),
278 */
279 {
280 .callback = dmi_disable_osi_linux,
281 .ident = "Clevo",
282 .matches = {
283 DMI_MATCH(DMI_SYS_VENDOR, "Clevo Co."),
284 },
285 },
286 /*
287 * Disable OSI(Linux) warnings on all "COMPAL"
288 *
289 * _OSI(Linux) confirmed to be a NOP:
290 * DMI_MATCH(DMI_BOARD_NAME, "HEL8X"),
291 * _OSI(Linux) unknown effect:
292 * DMI_MATCH(DMI_BOARD_NAME, "IFL91"),
293 */
294 {
295 .callback = dmi_unknown_osi_linux,
296 .ident = "Compal",
297 .matches = {
298 DMI_MATCH(DMI_BIOS_VENDOR, "COMPAL"),
299 },
300 },
301 { /* OSI(Linux) touches USB, breaks suspend to disk */
302 .callback = dmi_disable_osi_linux,
303 .ident = "Dell Dimension 5150",
304 .matches = {
305 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
306 DMI_MATCH(DMI_PRODUCT_NAME, "Dell DM051"),
307 },
308 },
309 { /* OSI(Linux) is a NOP */
310 .callback = dmi_disable_osi_linux,
311 .ident = "Dell",
312 .matches = {
313 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
314 DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1501"),
315 },
316 },
317 { /* OSI(Linux) effect unknown */
318 .callback = dmi_unknown_osi_linux,
319 .ident = "Dell",
320 .matches = {
321 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
322 DMI_MATCH(DMI_PRODUCT_NAME, "Latitude D830"),
323 },
324 },
325 { /* OSI(Linux) effect unknown */
326 .callback = dmi_unknown_osi_linux,
327 .ident = "Dell",
328 .matches = {
329 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
330 DMI_MATCH(DMI_PRODUCT_NAME, "OptiPlex GX620"),
331 },
332 },
333 { /* OSI(Linux) effect unknown */
334 .callback = dmi_unknown_osi_linux,
335 .ident = "Dell",
336 .matches = {
337 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
338 DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge 1900"),
339 },
340 },
341 { /* OSI(Linux) touches USB */
342 .callback = dmi_disable_osi_linux,
343 .ident = "Dell",
344 .matches = {
345 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
346 DMI_MATCH(DMI_PRODUCT_NAME, "Precision WorkStation 390"),
347 },
348 },
349 { /* OSI(Linux) is a NOP */
350 .callback = dmi_disable_osi_linux,
351 .ident = "Dell Vostro 1000",
352 .matches = {
353 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
354 DMI_MATCH(DMI_PRODUCT_NAME, "Vostro 1000"),
355 },
356 },
357 { /* OSI(Linux) effect unknown */
358 .callback = dmi_unknown_osi_linux,
359 .ident = "Dell",
360 .matches = {
361 DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
362 DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge SC440"),
363 },
364 },
365 { /* OSI(Linux) effect unknown */
366 .callback = dmi_unknown_osi_linux,
367 .ident = "Dialogue Flybook V5",
368 .matches = {
369 DMI_MATCH(DMI_SYS_VENDOR, "Dialogue Technology Corporation"),
370 DMI_MATCH(DMI_PRODUCT_NAME, "Flybook V5"),
371 },
372 },
373 /*
374 * Disable OSI(Linux) warnings on all "FUJITSU SIEMENS"
375 *
376 * _OSI(Linux) disables latest Windows BIOS code:
377 * DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pa 2510"),
378 * _OSI(Linux) confirmed to be a NOP:
379 * DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pi 1536"),
380 * DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Pi 1556"),
381 * DMI_MATCH(DMI_PRODUCT_NAME, "AMILO Xi 1546"),
382 * _OSI(Linux) unknown effect:
383 * DMI_MATCH(DMI_PRODUCT_NAME, "Amilo M1425"),
384 * DMI_MATCH(DMI_PRODUCT_NAME, "Amilo Si 1520"),
385 * DMI_MATCH(DMI_PRODUCT_NAME, "ESPRIMO Mobile V5505"),
386 */
387 {
388 .callback = dmi_disable_osi_linux,
389 .ident = "Fujitsu Siemens",
390 .matches = {
391 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
392 },
393 },
394 /*
395 * Disable OSI(Linux) warnings on all "Hewlett-Packard"
396 *
397 * _OSI(Linux) confirmed to be a NOP:
398 * .ident = "HP Pavilion tx 1000"
399 * DMI_MATCH(DMI_BOARD_NAME, "30BF"),
400 * .ident = "HP Pavilion dv2000"
401 * DMI_MATCH(DMI_BOARD_NAME, "30B5"),
402 * .ident = "HP Pavilion dv5000",
403 * DMI_MATCH(DMI_BOARD_NAME, "30A7"),
404 * .ident = "HP Pavilion dv6300 30BC",
405 * DMI_MATCH(DMI_BOARD_NAME, "30BC"),
406 * .ident = "HP Pavilion dv6000",
407 * DMI_MATCH(DMI_BOARD_NAME, "30B7"),
408 * DMI_MATCH(DMI_BOARD_NAME, "30B8"),
409 * .ident = "HP Pavilion dv9000",
410 * DMI_MATCH(DMI_BOARD_NAME, "30B9"),
411 * .ident = "HP Pavilion dv9500",
412 * DMI_MATCH(DMI_BOARD_NAME, "30CB"),
413 * .ident = "HP/Compaq Presario C500",
414 * DMI_MATCH(DMI_BOARD_NAME, "30C6"),
415 * .ident = "HP/Compaq Presario F500",
416 * DMI_MATCH(DMI_BOARD_NAME, "30D3"),
417 * _OSI(Linux) unknown effect:
418 * .ident = "HP Pavilion dv6500",
419 * DMI_MATCH(DMI_BOARD_NAME, "30D0"),
420 */
421 {
422 .callback = dmi_disable_osi_linux,
423 .ident = "Hewlett-Packard",
424 .matches = {
425 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
426 },
427 },
428 /*
429 * Lenovo has a mix of systems OSI(Linux) situations
430 * and thus we can not wildcard the vendor.
431 *
432 * _OSI(Linux) helps sound
433 * DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad R61"),
434 * DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T61"),
435 * _OSI(Linux) is a NOP:
436 * DMI_MATCH(DMI_PRODUCT_VERSION, "3000 N100"),
437 */
438 {
439 .callback = dmi_enable_osi_linux,
440 .ident = "Lenovo ThinkPad R61",
441 .matches = {
442 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
443 DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad R61"),
444 },
445 },
446 {
447 .callback = dmi_enable_osi_linux,
448 .ident = "Lenovo ThinkPad T61",
449 .matches = {
450 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
451 DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T61"),
452 },
453 },
454 {
455 .callback = dmi_unknown_osi_linux,
456 .ident = "Lenovo 3000 V100",
457 .matches = {
458 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
459 DMI_MATCH(DMI_PRODUCT_VERSION, "LENOVO3000 V100"),
460 },
461 },
462 {
463 .callback = dmi_disable_osi_linux,
464 .ident = "Lenovo 3000 N100",
465 .matches = {
466 DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
467 DMI_MATCH(DMI_PRODUCT_VERSION, "3000 N100"),
468 },
469 },
470 /*
471 * Disable OSI(Linux) warnings on all "LG Electronics"
472 *
473 * _OSI(Linux) confirmed to be a NOP:
474 * DMI_MATCH(DMI_PRODUCT_NAME, "P1-J150B"),
475 */
476 {
477 .callback = dmi_disable_osi_linux,
478 .ident = "LG",
479 .matches = {
480 DMI_MATCH(DMI_SYS_VENDOR, "LG Electronics"),
481 },
482 },
483 /* NEC - OSI(Linux) effect unknown */
484 {
485 .callback = dmi_unknown_osi_linux,
486 .ident = "NEC VERSA M360",
487 .matches = {
488 DMI_MATCH(DMI_SYS_VENDOR, "NEC Computers SAS"),
489 DMI_MATCH(DMI_PRODUCT_NAME, "NEC VERSA M360"),
490 },
491 },
492 /*
493 * Disable OSI(Linux) warnings on all "Samsung Electronics"
494 *
495 * OSI(Linux) disables PNP0C32 and other BIOS code for Windows:
496 * DMI_MATCH(DMI_PRODUCT_NAME, "R40P/R41P"),
497 * DMI_MATCH(DMI_PRODUCT_NAME, "R59P/R60P/R61P"),
498 */
499 {
500 .callback = dmi_disable_osi_linux,
501 .ident = "Samsung",
502 .matches = {
503 DMI_MATCH(DMI_SYS_VENDOR, "SAMSUNG ELECTRONICS CO., LTD."),
504 },
505 },
506 /*
507 * Disable OSI(Linux) warnings on all "Sony Corporation"
508 *
509 * _OSI(Linux) is a NOP:
510 * DMI_MATCH(DMI_PRODUCT_NAME, "VGN-SZ650N"),
511 * DMI_MATCH(DMI_PRODUCT_NAME, "VGN-SZ38GP_C"),
512 * DMI_MATCH(DMI_PRODUCT_NAME, "VGN-TZ21MN_N"),
513 * _OSI(Linux) unknown effect:
514 * DMI_MATCH(DMI_PRODUCT_NAME, "VGN-FZ11M"),
515 */
516 {
517 .callback = dmi_unknown_osi_linux,
518 .ident = "Sony",
519 .matches = {
520 DMI_MATCH(DMI_SYS_VENDOR, "Sony Corporation"),
521 },
522 },
523 /*
524 * Disable OSI(Linux) warnings on all "TOSHIBA"
525 *
526 * _OSI(Linux) breaks sound (bugzilla 7787):
527 * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite P100"),
528 * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite P105"),
529 * _OSI(Linux) is a NOP:
530 * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite A100"),
531 * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite A210"),
532 * _OSI(Linux) unknown effect:
533 * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite A135"),
534 * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite A200"),
535 * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite P205"),
536 * DMI_MATCH(DMI_PRODUCT_NAME, "Satellite U305"),
537 */
538 {
539 .callback = dmi_disable_osi_linux,
540 .ident = "Toshiba",
541 .matches = {
542 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
543 },
544 },
545 {}
546};
547
548#endif /* CONFIG_DMI */
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 49d432d0a12c..1b4cf984b081 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -29,7 +29,6 @@
29#include <linux/list.h> 29#include <linux/list.h>
30#include <linux/sched.h> 30#include <linux/sched.h>
31#include <linux/pm.h> 31#include <linux/pm.h>
32#include <linux/pm_legacy.h>
33#include <linux/device.h> 32#include <linux/device.h>
34#include <linux/proc_fs.h> 33#include <linux/proc_fs.h>
35#ifdef CONFIG_X86 34#ifdef CONFIG_X86
@@ -201,7 +200,7 @@ int acpi_bus_set_power(acpi_handle handle, int state)
201 * Get device's current power state 200 * Get device's current power state
202 */ 201 */
203 acpi_bus_get_power(device->handle, &device->power.state); 202 acpi_bus_get_power(device->handle, &device->power.state);
204 if (state == device->power.state) { 203 if ((state == device->power.state) && !device->flags.force_power_state) {
205 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device is already at D%d\n", 204 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device is already at D%d\n",
206 state)); 205 state));
207 return 0; 206 return 0;
@@ -744,7 +743,7 @@ static int __init acpi_bus_init(void)
744 return -ENODEV; 743 return -ENODEV;
745} 744}
746 745
747decl_subsys(acpi, NULL, NULL); 746struct kobject *acpi_kobj;
748 747
749static int __init acpi_init(void) 748static int __init acpi_init(void)
750{ 749{
@@ -756,24 +755,23 @@ static int __init acpi_init(void)
756 return -ENODEV; 755 return -ENODEV;
757 } 756 }
758 757
759 result = firmware_register(&acpi_subsys); 758 acpi_kobj = kobject_create_and_add("acpi", firmware_kobj);
760 if (result < 0) 759 if (!acpi_kobj) {
761 printk(KERN_WARNING "%s: firmware_register error: %d\n", 760 printk(KERN_WARNING "%s: kset create error\n", __FUNCTION__);
762 __FUNCTION__, result); 761 acpi_kobj = NULL;
762 }
763 763
764 result = acpi_bus_init(); 764 result = acpi_bus_init();
765 765
766 if (!result) { 766 if (!result) {
767#ifdef CONFIG_PM_LEGACY 767 if (!(pm_flags & PM_APM))
768 if (!PM_IS_ACTIVE()) 768 pm_flags |= PM_ACPI;
769 pm_active = 1;
770 else { 769 else {
771 printk(KERN_INFO PREFIX 770 printk(KERN_INFO PREFIX
772 "APM is already active, exiting\n"); 771 "APM is already active, exiting\n");
773 disable_acpi(); 772 disable_acpi();
774 result = -ENODEV; 773 result = -ENODEV;
775 } 774 }
776#endif
777 } else 775 } else
778 disable_acpi(); 776 disable_acpi();
779 777
diff --git a/drivers/acpi/debug.c b/drivers/acpi/debug.c
index bf513e07b773..6df564f4ca6e 100644
--- a/drivers/acpi/debug.c
+++ b/drivers/acpi/debug.c
@@ -130,6 +130,63 @@ static int param_get_debug_level(char *buffer, struct kernel_param *kp) {
130module_param_call(debug_layer, param_set_uint, param_get_debug_layer, &acpi_dbg_layer, 0644); 130module_param_call(debug_layer, param_set_uint, param_get_debug_layer, &acpi_dbg_layer, 0644);
131module_param_call(debug_level, param_set_uint, param_get_debug_level, &acpi_dbg_level, 0644); 131module_param_call(debug_level, param_set_uint, param_get_debug_level, &acpi_dbg_level, 0644);
132 132
133static char trace_method_name[6];
134module_param_string(trace_method_name, trace_method_name, 6, 0644);
135static unsigned int trace_debug_layer;
136module_param(trace_debug_layer, uint, 0644);
137static unsigned int trace_debug_level;
138module_param(trace_debug_level, uint, 0644);
139
140static int param_set_trace_state(const char *val, struct kernel_param *kp)
141{
142 int result = 0;
143
144 if (!strncmp(val, "enable", strlen("enable") - 1)) {
145 result = acpi_debug_trace(trace_method_name, trace_debug_level,
146 trace_debug_layer, 0);
147 if (result)
148 result = -EBUSY;
149 goto exit;
150 }
151
152 if (!strncmp(val, "disable", strlen("disable") - 1)) {
153 int name = 0;
154 result = acpi_debug_trace((char *)&name, trace_debug_level,
155 trace_debug_layer, 0);
156 if (result)
157 result = -EBUSY;
158 goto exit;
159 }
160
161 if (!strncmp(val, "1", 1)) {
162 result = acpi_debug_trace(trace_method_name, trace_debug_level,
163 trace_debug_layer, 1);
164 if (result)
165 result = -EBUSY;
166 goto exit;
167 }
168
169 result = -EINVAL;
170exit:
171 return result;
172}
173
174static int param_get_trace_state(char *buffer, struct kernel_param *kp)
175{
176 if (!acpi_gbl_trace_method_name)
177 return sprintf(buffer, "disable");
178 else {
179 if (acpi_gbl_trace_flags & 1)
180 return sprintf(buffer, "1");
181 else
182 return sprintf(buffer, "enable");
183 }
184 return 0;
185}
186
187module_param_call(trace_state, param_set_trace_state, param_get_trace_state,
188 NULL, 0644);
189
133/* -------------------------------------------------------------------------- 190/* --------------------------------------------------------------------------
134 FS Interface (/proc) 191 FS Interface (/proc)
135 -------------------------------------------------------------------------- */ 192 -------------------------------------------------------------------------- */
diff --git a/drivers/acpi/dispatcher/dsobject.c b/drivers/acpi/dispatcher/dsobject.c
index a474ca2334d5..954ac8ce958a 100644
--- a/drivers/acpi/dispatcher/dsobject.c
+++ b/drivers/acpi/dispatcher/dsobject.c
@@ -137,6 +137,71 @@ acpi_ds_build_internal_object(struct acpi_walk_state *walk_state,
137 return_ACPI_STATUS(status); 137 return_ACPI_STATUS(status);
138 } 138 }
139 } 139 }
140
141 /* Special object resolution for elements of a package */
142
143 if ((op->common.parent->common.aml_opcode == AML_PACKAGE_OP) ||
144 (op->common.parent->common.aml_opcode ==
145 AML_VAR_PACKAGE_OP)) {
146 /*
147 * Attempt to resolve the node to a value before we insert it into
148 * the package. If this is a reference to a common data type,
149 * resolve it immediately. According to the ACPI spec, package
150 * elements can only be "data objects" or method references.
151 * Attempt to resolve to an Integer, Buffer, String or Package.
152 * If cannot, return the named reference (for things like Devices,
153 * Methods, etc.) Buffer Fields and Fields will resolve to simple
154 * objects (int/buf/str/pkg).
155 *
156 * NOTE: References to things like Devices, Methods, Mutexes, etc.
157 * will remain as named references. This behavior is not described
158 * in the ACPI spec, but it appears to be an oversight.
159 */
160 obj_desc = (union acpi_operand_object *)op->common.node;
161
162 status =
163 acpi_ex_resolve_node_to_value(ACPI_CAST_INDIRECT_PTR
164 (struct
165 acpi_namespace_node,
166 &obj_desc),
167 walk_state);
168 if (ACPI_FAILURE(status)) {
169 return_ACPI_STATUS(status);
170 }
171
172 switch (op->common.node->type) {
173 /*
174 * For these types, we need the actual node, not the subobject.
175 * However, the subobject got an extra reference count above.
176 */
177 case ACPI_TYPE_MUTEX:
178 case ACPI_TYPE_METHOD:
179 case ACPI_TYPE_POWER:
180 case ACPI_TYPE_PROCESSOR:
181 case ACPI_TYPE_EVENT:
182 case ACPI_TYPE_REGION:
183 case ACPI_TYPE_DEVICE:
184 case ACPI_TYPE_THERMAL:
185
186 obj_desc =
187 (union acpi_operand_object *)op->common.
188 node;
189 break;
190
191 default:
192 break;
193 }
194
195 /*
196 * If above resolved to an operand object, we are done. Otherwise,
197 * we have a NS node, we must create the package entry as a named
198 * reference.
199 */
200 if (ACPI_GET_DESCRIPTOR_TYPE(obj_desc) !=
201 ACPI_DESC_TYPE_NAMED) {
202 goto exit;
203 }
204 }
140 } 205 }
141 206
142 /* Create and init a new internal ACPI object */ 207 /* Create and init a new internal ACPI object */
@@ -156,6 +221,7 @@ acpi_ds_build_internal_object(struct acpi_walk_state *walk_state,
156 return_ACPI_STATUS(status); 221 return_ACPI_STATUS(status);
157 } 222 }
158 223
224 exit:
159 *obj_desc_ptr = obj_desc; 225 *obj_desc_ptr = obj_desc;
160 return_ACPI_STATUS(AE_OK); 226 return_ACPI_STATUS(AE_OK);
161} 227}
@@ -356,12 +422,25 @@ acpi_ds_build_internal_package_obj(struct acpi_walk_state *walk_state,
356 arg = arg->common.next; 422 arg = arg->common.next;
357 for (i = 0; arg && (i < element_count); i++) { 423 for (i = 0; arg && (i < element_count); i++) {
358 if (arg->common.aml_opcode == AML_INT_RETURN_VALUE_OP) { 424 if (arg->common.aml_opcode == AML_INT_RETURN_VALUE_OP) {
359 425 if (arg->common.node->type == ACPI_TYPE_METHOD) {
360 /* This package element is already built, just get it */ 426 /*
361 427 * A method reference "looks" to the parser to be a method
362 obj_desc->package.elements[i] = 428 * invocation, so we special case it here
363 ACPI_CAST_PTR(union acpi_operand_object, 429 */
364 arg->common.node); 430 arg->common.aml_opcode = AML_INT_NAMEPATH_OP;
431 status =
432 acpi_ds_build_internal_object(walk_state,
433 arg,
434 &obj_desc->
435 package.
436 elements[i]);
437 } else {
438 /* This package element is already built, just get it */
439
440 obj_desc->package.elements[i] =
441 ACPI_CAST_PTR(union acpi_operand_object,
442 arg->common.node);
443 }
365 } else { 444 } else {
366 status = acpi_ds_build_internal_object(walk_state, arg, 445 status = acpi_ds_build_internal_object(walk_state, arg,
367 &obj_desc-> 446 &obj_desc->
diff --git a/drivers/acpi/dock.c b/drivers/acpi/dock.c
index 1dabdf4c07b3..b3dec2101e2e 100644
--- a/drivers/acpi/dock.c
+++ b/drivers/acpi/dock.c
@@ -51,6 +51,12 @@ static struct atomic_notifier_head dock_notifier_list;
51static struct platform_device *dock_device; 51static struct platform_device *dock_device;
52static char dock_device_name[] = "dock"; 52static char dock_device_name[] = "dock";
53 53
54static const struct acpi_device_id dock_device_ids[] = {
55 {"LNXDOCK", 0},
56 {"", 0},
57};
58MODULE_DEVICE_TABLE(acpi, dock_device_ids);
59
54struct dock_station { 60struct dock_station {
55 acpi_handle handle; 61 acpi_handle handle;
56 unsigned long last_dock_time; 62 unsigned long last_dock_time;
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index 06b78e5e33a1..7222a18a0319 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -26,6 +26,9 @@
26 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 26 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
27 */ 27 */
28 28
29/* Uncomment next line to get verbose print outs*/
30/* #define DEBUG */
31
29#include <linux/kernel.h> 32#include <linux/kernel.h>
30#include <linux/module.h> 33#include <linux/module.h>
31#include <linux/init.h> 34#include <linux/init.h>
@@ -75,7 +78,11 @@ enum {
75 EC_FLAGS_WAIT_GPE = 0, /* Don't check status until GPE arrives */ 78 EC_FLAGS_WAIT_GPE = 0, /* Don't check status until GPE arrives */
76 EC_FLAGS_QUERY_PENDING, /* Query is pending */ 79 EC_FLAGS_QUERY_PENDING, /* Query is pending */
77 EC_FLAGS_GPE_MODE, /* Expect GPE to be sent for status change */ 80 EC_FLAGS_GPE_MODE, /* Expect GPE to be sent for status change */
78 EC_FLAGS_ONLY_IBF_GPE, /* Expect GPE only for IBF = 0 event */ 81 EC_FLAGS_NO_ADDRESS_GPE, /* Expect GPE only for non-address event */
82 EC_FLAGS_ADDRESS, /* Address is being written */
83 EC_FLAGS_NO_WDATA_GPE, /* Don't expect WDATA GPE event */
84 EC_FLAGS_WDATA, /* Data is being written */
85 EC_FLAGS_NO_OBF1_GPE, /* Don't expect GPE before read */
79}; 86};
80 87
81static int acpi_ec_remove(struct acpi_device *device, int type); 88static int acpi_ec_remove(struct acpi_device *device, int type);
@@ -131,21 +138,27 @@ static struct acpi_ec {
131 138
132static inline u8 acpi_ec_read_status(struct acpi_ec *ec) 139static inline u8 acpi_ec_read_status(struct acpi_ec *ec)
133{ 140{
134 return inb(ec->command_addr); 141 u8 x = inb(ec->command_addr);
142 pr_debug(PREFIX "---> status = 0x%2.2x\n", x);
143 return x;
135} 144}
136 145
137static inline u8 acpi_ec_read_data(struct acpi_ec *ec) 146static inline u8 acpi_ec_read_data(struct acpi_ec *ec)
138{ 147{
148 u8 x = inb(ec->data_addr);
149 pr_debug(PREFIX "---> data = 0x%2.2x\n", x);
139 return inb(ec->data_addr); 150 return inb(ec->data_addr);
140} 151}
141 152
142static inline void acpi_ec_write_cmd(struct acpi_ec *ec, u8 command) 153static inline void acpi_ec_write_cmd(struct acpi_ec *ec, u8 command)
143{ 154{
155 pr_debug(PREFIX "<--- command = 0x%2.2x\n", command);
144 outb(command, ec->command_addr); 156 outb(command, ec->command_addr);
145} 157}
146 158
147static inline void acpi_ec_write_data(struct acpi_ec *ec, u8 data) 159static inline void acpi_ec_write_data(struct acpi_ec *ec, u8 data)
148{ 160{
161 pr_debug(PREFIX "<--- data = 0x%2.2x\n", data);
149 outb(data, ec->data_addr); 162 outb(data, ec->data_addr);
150} 163}
151 164
@@ -166,38 +179,63 @@ static inline int acpi_ec_check_status(struct acpi_ec *ec, enum ec_event event)
166 179
167static int acpi_ec_wait(struct acpi_ec *ec, enum ec_event event, int force_poll) 180static int acpi_ec_wait(struct acpi_ec *ec, enum ec_event event, int force_poll)
168{ 181{
182 int ret = 0;
183
184 if (unlikely(event == ACPI_EC_EVENT_OBF_1 &&
185 test_bit(EC_FLAGS_NO_OBF1_GPE, &ec->flags)))
186 force_poll = 1;
187 if (unlikely(test_bit(EC_FLAGS_ADDRESS, &ec->flags) &&
188 test_bit(EC_FLAGS_NO_ADDRESS_GPE, &ec->flags)))
189 force_poll = 1;
190 if (unlikely(test_bit(EC_FLAGS_WDATA, &ec->flags) &&
191 test_bit(EC_FLAGS_NO_WDATA_GPE, &ec->flags)))
192 force_poll = 1;
169 if (likely(test_bit(EC_FLAGS_GPE_MODE, &ec->flags)) && 193 if (likely(test_bit(EC_FLAGS_GPE_MODE, &ec->flags)) &&
170 likely(!force_poll)) { 194 likely(!force_poll)) {
171 if (wait_event_timeout(ec->wait, acpi_ec_check_status(ec, event), 195 if (wait_event_timeout(ec->wait, acpi_ec_check_status(ec, event),
172 msecs_to_jiffies(ACPI_EC_DELAY))) 196 msecs_to_jiffies(ACPI_EC_DELAY)))
173 return 0; 197 goto end;
174 clear_bit(EC_FLAGS_WAIT_GPE, &ec->flags); 198 clear_bit(EC_FLAGS_WAIT_GPE, &ec->flags);
175 if (acpi_ec_check_status(ec, event)) { 199 if (acpi_ec_check_status(ec, event)) {
176 if (event == ACPI_EC_EVENT_OBF_1) { 200 if (event == ACPI_EC_EVENT_OBF_1) {
177 /* miss OBF = 1 GPE, don't expect it anymore */ 201 /* miss OBF_1 GPE, don't expect it */
178 printk(KERN_INFO PREFIX "missing OBF_1 confirmation," 202 pr_info(PREFIX "missing OBF confirmation, "
179 "switching to degraded mode.\n"); 203 "don't expect it any longer.\n");
180 set_bit(EC_FLAGS_ONLY_IBF_GPE, &ec->flags); 204 set_bit(EC_FLAGS_NO_OBF1_GPE, &ec->flags);
205 } else if (test_bit(EC_FLAGS_ADDRESS, &ec->flags)) {
206 /* miss address GPE, don't expect it anymore */
207 pr_info(PREFIX "missing address confirmation, "
208 "don't expect it any longer.\n");
209 set_bit(EC_FLAGS_NO_ADDRESS_GPE, &ec->flags);
210 } else if (test_bit(EC_FLAGS_WDATA, &ec->flags)) {
211 /* miss write data GPE, don't expect it */
212 pr_info(PREFIX "missing write data confirmation, "
213 "don't expect it any longer.\n");
214 set_bit(EC_FLAGS_NO_WDATA_GPE, &ec->flags);
181 } else { 215 } else {
182 /* missing GPEs, switch back to poll mode */ 216 /* missing GPEs, switch back to poll mode */
183 printk(KERN_INFO PREFIX "missing IBF_1 confirmations," 217 if (printk_ratelimit())
184 "switch off interrupt mode.\n"); 218 pr_info(PREFIX "missing confirmations, "
219 "switch off interrupt mode.\n");
185 clear_bit(EC_FLAGS_GPE_MODE, &ec->flags); 220 clear_bit(EC_FLAGS_GPE_MODE, &ec->flags);
186 } 221 }
187 return 0; 222 goto end;
188 } 223 }
189 } else { 224 } else {
190 unsigned long delay = jiffies + msecs_to_jiffies(ACPI_EC_DELAY); 225 unsigned long delay = jiffies + msecs_to_jiffies(ACPI_EC_DELAY);
191 clear_bit(EC_FLAGS_WAIT_GPE, &ec->flags); 226 clear_bit(EC_FLAGS_WAIT_GPE, &ec->flags);
192 while (time_before(jiffies, delay)) { 227 while (time_before(jiffies, delay)) {
193 if (acpi_ec_check_status(ec, event)) 228 if (acpi_ec_check_status(ec, event))
194 return 0; 229 goto end;
195 } 230 }
196 } 231 }
197 printk(KERN_ERR PREFIX "acpi_ec_wait timeout," 232 pr_err(PREFIX "acpi_ec_wait timeout,"
198 " status = %d, expect_event = %d\n", 233 " status = %d, expect_event = %d\n",
199 acpi_ec_read_status(ec), event); 234 acpi_ec_read_status(ec), event);
200 return -ETIME; 235 ret = -ETIME;
236 end:
237 clear_bit(EC_FLAGS_ADDRESS, &ec->flags);
238 return ret;
201} 239}
202 240
203static int acpi_ec_transaction_unlocked(struct acpi_ec *ec, u8 command, 241static int acpi_ec_transaction_unlocked(struct acpi_ec *ec, u8 command,
@@ -208,22 +246,26 @@ static int acpi_ec_transaction_unlocked(struct acpi_ec *ec, u8 command,
208 int result = 0; 246 int result = 0;
209 set_bit(EC_FLAGS_WAIT_GPE, &ec->flags); 247 set_bit(EC_FLAGS_WAIT_GPE, &ec->flags);
210 acpi_ec_write_cmd(ec, command); 248 acpi_ec_write_cmd(ec, command);
211 249 pr_debug(PREFIX "transaction start\n");
212 for (; wdata_len > 0; --wdata_len) { 250 for (; wdata_len > 0; --wdata_len) {
213 result = acpi_ec_wait(ec, ACPI_EC_EVENT_IBF_0, force_poll); 251 result = acpi_ec_wait(ec, ACPI_EC_EVENT_IBF_0, force_poll);
214 if (result) { 252 if (result) {
215 printk(KERN_ERR PREFIX 253 pr_err(PREFIX
216 "write_cmd timeout, command = %d\n", command); 254 "write_cmd timeout, command = %d\n", command);
217 goto end; 255 goto end;
218 } 256 }
257 /* mark the address byte written to EC */
258 if (rdata_len + wdata_len > 1)
259 set_bit(EC_FLAGS_ADDRESS, &ec->flags);
219 set_bit(EC_FLAGS_WAIT_GPE, &ec->flags); 260 set_bit(EC_FLAGS_WAIT_GPE, &ec->flags);
220 acpi_ec_write_data(ec, *(wdata++)); 261 acpi_ec_write_data(ec, *(wdata++));
221 } 262 }
222 263
223 if (!rdata_len) { 264 if (!rdata_len) {
265 set_bit(EC_FLAGS_WDATA, &ec->flags);
224 result = acpi_ec_wait(ec, ACPI_EC_EVENT_IBF_0, force_poll); 266 result = acpi_ec_wait(ec, ACPI_EC_EVENT_IBF_0, force_poll);
225 if (result) { 267 if (result) {
226 printk(KERN_ERR PREFIX 268 pr_err(PREFIX
227 "finish-write timeout, command = %d\n", command); 269 "finish-write timeout, command = %d\n", command);
228 goto end; 270 goto end;
229 } 271 }
@@ -231,12 +273,9 @@ static int acpi_ec_transaction_unlocked(struct acpi_ec *ec, u8 command,
231 clear_bit(EC_FLAGS_QUERY_PENDING, &ec->flags); 273 clear_bit(EC_FLAGS_QUERY_PENDING, &ec->flags);
232 274
233 for (; rdata_len > 0; --rdata_len) { 275 for (; rdata_len > 0; --rdata_len) {
234 if (test_bit(EC_FLAGS_ONLY_IBF_GPE, &ec->flags))
235 force_poll = 1;
236 result = acpi_ec_wait(ec, ACPI_EC_EVENT_OBF_1, force_poll); 276 result = acpi_ec_wait(ec, ACPI_EC_EVENT_OBF_1, force_poll);
237 if (result) { 277 if (result) {
238 printk(KERN_ERR PREFIX "read timeout, command = %d\n", 278 pr_err(PREFIX "read timeout, command = %d\n", command);
239 command);
240 goto end; 279 goto end;
241 } 280 }
242 /* Don't expect GPE after last read */ 281 /* Don't expect GPE after last read */
@@ -245,6 +284,7 @@ static int acpi_ec_transaction_unlocked(struct acpi_ec *ec, u8 command,
245 *(rdata++) = acpi_ec_read_data(ec); 284 *(rdata++) = acpi_ec_read_data(ec);
246 } 285 }
247 end: 286 end:
287 pr_debug(PREFIX "transaction end\n");
248 return result; 288 return result;
249} 289}
250 290
@@ -273,8 +313,8 @@ static int acpi_ec_transaction(struct acpi_ec *ec, u8 command,
273 313
274 status = acpi_ec_wait(ec, ACPI_EC_EVENT_IBF_0, 0); 314 status = acpi_ec_wait(ec, ACPI_EC_EVENT_IBF_0, 0);
275 if (status) { 315 if (status) {
276 printk(KERN_ERR PREFIX 316 pr_err(PREFIX "input buffer is not empty, "
277 "input buffer is not empty, aborting transaction\n"); 317 "aborting transaction\n");
278 goto end; 318 goto end;
279 } 319 }
280 320
@@ -488,6 +528,7 @@ static u32 acpi_ec_gpe_handler(void *data)
488 acpi_status status = AE_OK; 528 acpi_status status = AE_OK;
489 struct acpi_ec *ec = data; 529 struct acpi_ec *ec = data;
490 530
531 pr_debug(PREFIX "~~~> interrupt\n");
491 clear_bit(EC_FLAGS_WAIT_GPE, &ec->flags); 532 clear_bit(EC_FLAGS_WAIT_GPE, &ec->flags);
492 if (test_bit(EC_FLAGS_GPE_MODE, &ec->flags)) 533 if (test_bit(EC_FLAGS_GPE_MODE, &ec->flags))
493 wake_up(&ec->wait); 534 wake_up(&ec->wait);
@@ -498,8 +539,9 @@ static u32 acpi_ec_gpe_handler(void *data)
498 acpi_ec_gpe_query, ec); 539 acpi_ec_gpe_query, ec);
499 } else if (unlikely(!test_bit(EC_FLAGS_GPE_MODE, &ec->flags))) { 540 } else if (unlikely(!test_bit(EC_FLAGS_GPE_MODE, &ec->flags))) {
500 /* this is non-query, must be confirmation */ 541 /* this is non-query, must be confirmation */
501 printk(KERN_INFO PREFIX "non-query interrupt received," 542 if (printk_ratelimit())
502 " switching to interrupt mode\n"); 543 pr_info(PREFIX "non-query interrupt received,"
544 " switching to interrupt mode\n");
503 set_bit(EC_FLAGS_GPE_MODE, &ec->flags); 545 set_bit(EC_FLAGS_GPE_MODE, &ec->flags);
504 } 546 }
505 547
@@ -531,7 +573,7 @@ acpi_ec_space_handler(u32 function, acpi_physical_address address,
531 void *handler_context, void *region_context) 573 void *handler_context, void *region_context)
532{ 574{
533 struct acpi_ec *ec = handler_context; 575 struct acpi_ec *ec = handler_context;
534 int result = 0, i = 0; 576 int result = 0, i;
535 u8 temp = 0; 577 u8 temp = 0;
536 578
537 if ((address > 0xFF) || !value || !handler_context) 579 if ((address > 0xFF) || !value || !handler_context)
@@ -543,7 +585,18 @@ acpi_ec_space_handler(u32 function, acpi_physical_address address,
543 if (bits != 8 && acpi_strict) 585 if (bits != 8 && acpi_strict)
544 return AE_BAD_PARAMETER; 586 return AE_BAD_PARAMETER;
545 587
546 while (bits - i > 0) { 588 acpi_ec_burst_enable(ec);
589
590 if (function == ACPI_READ) {
591 result = acpi_ec_read(ec, address, &temp);
592 *value = temp;
593 } else {
594 temp = 0xff & (*value);
595 result = acpi_ec_write(ec, address, temp);
596 }
597
598 for (i = 8; unlikely(bits - i > 0); i += 8) {
599 ++address;
547 if (function == ACPI_READ) { 600 if (function == ACPI_READ) {
548 result = acpi_ec_read(ec, address, &temp); 601 result = acpi_ec_read(ec, address, &temp);
549 (*value) |= ((acpi_integer)temp) << i; 602 (*value) |= ((acpi_integer)temp) << i;
@@ -551,10 +604,10 @@ acpi_ec_space_handler(u32 function, acpi_physical_address address,
551 temp = 0xff & ((*value) >> i); 604 temp = 0xff & ((*value) >> i);
552 result = acpi_ec_write(ec, address, temp); 605 result = acpi_ec_write(ec, address, temp);
553 } 606 }
554 i += 8;
555 ++address;
556 } 607 }
557 608
609 acpi_ec_burst_disable(ec);
610
558 switch (result) { 611 switch (result) {
559 case -EINVAL: 612 case -EINVAL:
560 return AE_BAD_PARAMETER; 613 return AE_BAD_PARAMETER;
@@ -701,10 +754,10 @@ static void ec_remove_handlers(struct acpi_ec *ec)
701{ 754{
702 if (ACPI_FAILURE(acpi_remove_address_space_handler(ec->handle, 755 if (ACPI_FAILURE(acpi_remove_address_space_handler(ec->handle,
703 ACPI_ADR_SPACE_EC, &acpi_ec_space_handler))) 756 ACPI_ADR_SPACE_EC, &acpi_ec_space_handler)))
704 printk(KERN_ERR PREFIX "failed to remove space handler\n"); 757 pr_err(PREFIX "failed to remove space handler\n");
705 if (ACPI_FAILURE(acpi_remove_gpe_handler(NULL, ec->gpe, 758 if (ACPI_FAILURE(acpi_remove_gpe_handler(NULL, ec->gpe,
706 &acpi_ec_gpe_handler))) 759 &acpi_ec_gpe_handler)))
707 printk(KERN_ERR PREFIX "failed to remove gpe handler\n"); 760 pr_err(PREFIX "failed to remove gpe handler\n");
708 ec->handlers_installed = 0; 761 ec->handlers_installed = 0;
709} 762}
710 763
@@ -747,9 +800,9 @@ static int acpi_ec_add(struct acpi_device *device)
747 first_ec = ec; 800 first_ec = ec;
748 acpi_driver_data(device) = ec; 801 acpi_driver_data(device) = ec;
749 acpi_ec_add_fs(device); 802 acpi_ec_add_fs(device);
750 printk(KERN_INFO PREFIX "GPE = 0x%lx, I/O: command/status = 0x%lx, data = 0x%lx\n", 803 pr_info(PREFIX "GPE = 0x%lx, I/O: command/status = 0x%lx, data = 0x%lx\n",
751 ec->gpe, ec->command_addr, ec->data_addr); 804 ec->gpe, ec->command_addr, ec->data_addr);
752 printk(KERN_INFO PREFIX "driver started in %s mode\n", 805 pr_info(PREFIX "driver started in %s mode\n",
753 (test_bit(EC_FLAGS_GPE_MODE, &ec->flags))?"interrupt":"poll"); 806 (test_bit(EC_FLAGS_GPE_MODE, &ec->flags))?"interrupt":"poll");
754 return 0; 807 return 0;
755} 808}
@@ -860,6 +913,17 @@ static int acpi_ec_stop(struct acpi_device *device, int type)
860 return 0; 913 return 0;
861} 914}
862 915
916int __init acpi_boot_ec_enable(void)
917{
918 if (!boot_ec || boot_ec->handlers_installed)
919 return 0;
920 if (!ec_install_handlers(boot_ec)) {
921 first_ec = boot_ec;
922 return 0;
923 }
924 return -EFAULT;
925}
926
863int __init acpi_ec_ecdt_probe(void) 927int __init acpi_ec_ecdt_probe(void)
864{ 928{
865 int ret; 929 int ret;
@@ -875,18 +939,27 @@ int __init acpi_ec_ecdt_probe(void)
875 status = acpi_get_table(ACPI_SIG_ECDT, 1, 939 status = acpi_get_table(ACPI_SIG_ECDT, 1,
876 (struct acpi_table_header **)&ecdt_ptr); 940 (struct acpi_table_header **)&ecdt_ptr);
877 if (ACPI_SUCCESS(status)) { 941 if (ACPI_SUCCESS(status)) {
878 printk(KERN_INFO PREFIX "EC description table is found, configuring boot EC\n"); 942 pr_info(PREFIX "EC description table is found, configuring boot EC\n");
879 boot_ec->command_addr = ecdt_ptr->control.address; 943 boot_ec->command_addr = ecdt_ptr->control.address;
880 boot_ec->data_addr = ecdt_ptr->data.address; 944 boot_ec->data_addr = ecdt_ptr->data.address;
881 boot_ec->gpe = ecdt_ptr->gpe; 945 boot_ec->gpe = ecdt_ptr->gpe;
882 boot_ec->handle = ACPI_ROOT_OBJECT; 946 boot_ec->handle = ACPI_ROOT_OBJECT;
883 } else { 947 } else {
948 /* This workaround is needed only on some broken machines,
949 * which require early EC, but fail to provide ECDT */
950 acpi_handle x;
884 printk(KERN_DEBUG PREFIX "Look up EC in DSDT\n"); 951 printk(KERN_DEBUG PREFIX "Look up EC in DSDT\n");
885 status = acpi_get_devices(ec_device_ids[0].id, ec_parse_device, 952 status = acpi_get_devices(ec_device_ids[0].id, ec_parse_device,
886 boot_ec, NULL); 953 boot_ec, NULL);
887 /* Check that acpi_get_devices actually find something */ 954 /* Check that acpi_get_devices actually find something */
888 if (ACPI_FAILURE(status) || !boot_ec->handle) 955 if (ACPI_FAILURE(status) || !boot_ec->handle)
889 goto error; 956 goto error;
957 /* We really need to limit this workaround, the only ASUS,
958 * which needs it, has fake EC._INI method, so use it as flag.
959 * Keep boot_ec struct as it will be needed soon.
960 */
961 if (ACPI_FAILURE(acpi_get_handle(boot_ec->handle, "_INI", &x)))
962 return -ENODEV;
890 } 963 }
891 964
892 ret = ec_install_handlers(boot_ec); 965 ret = ec_install_handlers(boot_ec);
diff --git a/drivers/acpi/events/evregion.c b/drivers/acpi/events/evregion.c
index e99f0c435a47..58ad09725dd2 100644
--- a/drivers/acpi/events/evregion.c
+++ b/drivers/acpi/events/evregion.c
@@ -344,7 +344,7 @@ acpi_ev_address_space_dispatch(union acpi_operand_object *region_obj,
344 * setup will potentially execute control methods 344 * setup will potentially execute control methods
345 * (e.g., _REG method for this region) 345 * (e.g., _REG method for this region)
346 */ 346 */
347 acpi_ex_relinquish_interpreter(); 347 acpi_ex_exit_interpreter();
348 348
349 status = region_setup(region_obj, ACPI_REGION_ACTIVATE, 349 status = region_setup(region_obj, ACPI_REGION_ACTIVATE,
350 handler_desc->address_space.context, 350 handler_desc->address_space.context,
@@ -352,7 +352,7 @@ acpi_ev_address_space_dispatch(union acpi_operand_object *region_obj,
352 352
353 /* Re-enter the interpreter */ 353 /* Re-enter the interpreter */
354 354
355 acpi_ex_reacquire_interpreter(); 355 acpi_ex_enter_interpreter();
356 356
357 /* Check for failure of the Region Setup */ 357 /* Check for failure of the Region Setup */
358 358
@@ -405,7 +405,7 @@ acpi_ev_address_space_dispatch(union acpi_operand_object *region_obj,
405 * exit the interpreter because the handler *might* block -- we don't 405 * exit the interpreter because the handler *might* block -- we don't
406 * know what it will do, so we can't hold the lock on the intepreter. 406 * know what it will do, so we can't hold the lock on the intepreter.
407 */ 407 */
408 acpi_ex_relinquish_interpreter(); 408 acpi_ex_exit_interpreter();
409 } 409 }
410 410
411 /* Call the handler */ 411 /* Call the handler */
@@ -426,7 +426,7 @@ acpi_ev_address_space_dispatch(union acpi_operand_object *region_obj,
426 * We just returned from a non-default handler, we must re-enter the 426 * We just returned from a non-default handler, we must re-enter the
427 * interpreter 427 * interpreter
428 */ 428 */
429 acpi_ex_reacquire_interpreter(); 429 acpi_ex_enter_interpreter();
430 } 430 }
431 431
432 return_ACPI_STATUS(status); 432 return_ACPI_STATUS(status);
diff --git a/drivers/acpi/fan.c b/drivers/acpi/fan.c
index a5a5532db268..a6e149d692cb 100644
--- a/drivers/acpi/fan.c
+++ b/drivers/acpi/fan.c
@@ -47,6 +47,8 @@ MODULE_LICENSE("GPL");
47 47
48static int acpi_fan_add(struct acpi_device *device); 48static int acpi_fan_add(struct acpi_device *device);
49static int acpi_fan_remove(struct acpi_device *device, int type); 49static int acpi_fan_remove(struct acpi_device *device, int type);
50static int acpi_fan_suspend(struct acpi_device *device, pm_message_t state);
51static int acpi_fan_resume(struct acpi_device *device);
50 52
51static const struct acpi_device_id fan_device_ids[] = { 53static const struct acpi_device_id fan_device_ids[] = {
52 {"PNP0C0B", 0}, 54 {"PNP0C0B", 0},
@@ -61,6 +63,8 @@ static struct acpi_driver acpi_fan_driver = {
61 .ops = { 63 .ops = {
62 .add = acpi_fan_add, 64 .add = acpi_fan_add,
63 .remove = acpi_fan_remove, 65 .remove = acpi_fan_remove,
66 .suspend = acpi_fan_suspend,
67 .resume = acpi_fan_resume,
64 }, 68 },
65}; 69};
66 70
@@ -191,6 +195,10 @@ static int acpi_fan_add(struct acpi_device *device)
191 goto end; 195 goto end;
192 } 196 }
193 197
198 device->flags.force_power_state = 1;
199 acpi_bus_set_power(device->handle, state);
200 device->flags.force_power_state = 0;
201
194 result = acpi_fan_add_fs(device); 202 result = acpi_fan_add_fs(device);
195 if (result) 203 if (result)
196 goto end; 204 goto end;
@@ -216,6 +224,38 @@ static int acpi_fan_remove(struct acpi_device *device, int type)
216 return 0; 224 return 0;
217} 225}
218 226
227static int acpi_fan_suspend(struct acpi_device *device, pm_message_t state)
228{
229 if (!device)
230 return -EINVAL;
231
232 acpi_bus_set_power(device->handle, ACPI_STATE_D0);
233
234 return AE_OK;
235}
236
237static int acpi_fan_resume(struct acpi_device *device)
238{
239 int result = 0;
240 int power_state = 0;
241
242 if (!device)
243 return -EINVAL;
244
245 result = acpi_bus_get_power(device->handle, &power_state);
246 if (result) {
247 ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
248 "Error reading fan power state\n"));
249 return result;
250 }
251
252 device->flags.force_power_state = 1;
253 acpi_bus_set_power(device->handle, power_state);
254 device->flags.force_power_state = 0;
255
256 return result;
257}
258
219static int __init acpi_fan_init(void) 259static int __init acpi_fan_init(void)
220{ 260{
221 int result = 0; 261 int result = 0;
diff --git a/drivers/acpi/hardware/hwsleep.c b/drivers/acpi/hardware/hwsleep.c
index 81b248429703..fd1c4ba63367 100644
--- a/drivers/acpi/hardware/hwsleep.c
+++ b/drivers/acpi/hardware/hwsleep.c
@@ -192,18 +192,13 @@ acpi_status acpi_enter_sleep_state_prep(u8 sleep_state)
192 arg.type = ACPI_TYPE_INTEGER; 192 arg.type = ACPI_TYPE_INTEGER;
193 arg.integer.value = sleep_state; 193 arg.integer.value = sleep_state;
194 194
195 /* Run the _PTS and _GTS methods */ 195 /* Run the _PTS method */
196 196
197 status = acpi_evaluate_object(NULL, METHOD_NAME__PTS, &arg_list, NULL); 197 status = acpi_evaluate_object(NULL, METHOD_NAME__PTS, &arg_list, NULL);
198 if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) { 198 if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
199 return_ACPI_STATUS(status); 199 return_ACPI_STATUS(status);
200 } 200 }
201 201
202 status = acpi_evaluate_object(NULL, METHOD_NAME__GTS, &arg_list, NULL);
203 if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
204 return_ACPI_STATUS(status);
205 }
206
207 /* Setup the argument to _SST */ 202 /* Setup the argument to _SST */
208 203
209 switch (sleep_state) { 204 switch (sleep_state) {
@@ -234,10 +229,6 @@ acpi_status acpi_enter_sleep_state_prep(u8 sleep_state)
234 "While executing method _SST")); 229 "While executing method _SST"));
235 } 230 }
236 231
237 /* Disable/Clear all GPEs */
238
239 status = acpi_hw_disable_all_gpes();
240
241 return_ACPI_STATUS(status); 232 return_ACPI_STATUS(status);
242} 233}
243 234
@@ -262,6 +253,8 @@ acpi_status asmlinkage acpi_enter_sleep_state(u8 sleep_state)
262 struct acpi_bit_register_info *sleep_type_reg_info; 253 struct acpi_bit_register_info *sleep_type_reg_info;
263 struct acpi_bit_register_info *sleep_enable_reg_info; 254 struct acpi_bit_register_info *sleep_enable_reg_info;
264 u32 in_value; 255 u32 in_value;
256 struct acpi_object_list arg_list;
257 union acpi_object arg;
265 acpi_status status; 258 acpi_status status;
266 259
267 ACPI_FUNCTION_TRACE(acpi_enter_sleep_state); 260 ACPI_FUNCTION_TRACE(acpi_enter_sleep_state);
@@ -307,6 +300,18 @@ acpi_status asmlinkage acpi_enter_sleep_state(u8 sleep_state)
307 return_ACPI_STATUS(status); 300 return_ACPI_STATUS(status);
308 } 301 }
309 302
303 /* Execute the _GTS method */
304
305 arg_list.count = 1;
306 arg_list.pointer = &arg;
307 arg.type = ACPI_TYPE_INTEGER;
308 arg.integer.value = sleep_state;
309
310 status = acpi_evaluate_object(NULL, METHOD_NAME__GTS, &arg_list, NULL);
311 if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
312 return_ACPI_STATUS(status);
313 }
314
310 /* Get current value of PM1A control */ 315 /* Get current value of PM1A control */
311 316
312 status = acpi_hw_register_read(ACPI_REGISTER_PM1_CONTROL, &PM1Acontrol); 317 status = acpi_hw_register_read(ACPI_REGISTER_PM1_CONTROL, &PM1Acontrol);
@@ -473,17 +478,18 @@ ACPI_EXPORT_SYMBOL(acpi_enter_sleep_state_s4bios)
473 478
474/******************************************************************************* 479/*******************************************************************************
475 * 480 *
476 * FUNCTION: acpi_leave_sleep_state 481 * FUNCTION: acpi_leave_sleep_state_prep
477 * 482 *
478 * PARAMETERS: sleep_state - Which sleep state we just exited 483 * PARAMETERS: sleep_state - Which sleep state we are exiting
479 * 484 *
480 * RETURN: Status 485 * RETURN: Status
481 * 486 *
482 * DESCRIPTION: Perform OS-independent ACPI cleanup after a sleep 487 * DESCRIPTION: Perform the first state of OS-independent ACPI cleanup after a
483 * Called with interrupts ENABLED. 488 * sleep.
489 * Called with interrupts DISABLED.
484 * 490 *
485 ******************************************************************************/ 491 ******************************************************************************/
486acpi_status acpi_leave_sleep_state(u8 sleep_state) 492acpi_status acpi_leave_sleep_state_prep(u8 sleep_state)
487{ 493{
488 struct acpi_object_list arg_list; 494 struct acpi_object_list arg_list;
489 union acpi_object arg; 495 union acpi_object arg;
@@ -493,7 +499,7 @@ acpi_status acpi_leave_sleep_state(u8 sleep_state)
493 u32 PM1Acontrol; 499 u32 PM1Acontrol;
494 u32 PM1Bcontrol; 500 u32 PM1Bcontrol;
495 501
496 ACPI_FUNCTION_TRACE(acpi_leave_sleep_state); 502 ACPI_FUNCTION_TRACE(acpi_leave_sleep_state_prep);
497 503
498 /* 504 /*
499 * Set SLP_TYPE and SLP_EN to state S0. 505 * Set SLP_TYPE and SLP_EN to state S0.
@@ -540,6 +546,41 @@ acpi_status acpi_leave_sleep_state(u8 sleep_state)
540 } 546 }
541 } 547 }
542 548
549 /* Execute the _BFS method */
550
551 arg_list.count = 1;
552 arg_list.pointer = &arg;
553 arg.type = ACPI_TYPE_INTEGER;
554 arg.integer.value = sleep_state;
555
556 status = acpi_evaluate_object(NULL, METHOD_NAME__BFS, &arg_list, NULL);
557 if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
558 ACPI_EXCEPTION((AE_INFO, status, "During Method _BFS"));
559 }
560
561 return_ACPI_STATUS(status);
562}
563
564/*******************************************************************************
565 *
566 * FUNCTION: acpi_leave_sleep_state
567 *
568 * PARAMETERS: sleep_state - Which sleep state we just exited
569 *
570 * RETURN: Status
571 *
572 * DESCRIPTION: Perform OS-independent ACPI cleanup after a sleep
573 * Called with interrupts ENABLED.
574 *
575 ******************************************************************************/
576acpi_status acpi_leave_sleep_state(u8 sleep_state)
577{
578 struct acpi_object_list arg_list;
579 union acpi_object arg;
580 acpi_status status;
581
582 ACPI_FUNCTION_TRACE(acpi_leave_sleep_state);
583
543 /* Ensure enter_sleep_state_prep -> enter_sleep_state ordering */ 584 /* Ensure enter_sleep_state_prep -> enter_sleep_state ordering */
544 585
545 acpi_gbl_sleep_type_a = ACPI_SLEEP_TYPE_INVALID; 586 acpi_gbl_sleep_type_a = ACPI_SLEEP_TYPE_INVALID;
@@ -558,12 +599,6 @@ acpi_status acpi_leave_sleep_state(u8 sleep_state)
558 ACPI_EXCEPTION((AE_INFO, status, "During Method _SST")); 599 ACPI_EXCEPTION((AE_INFO, status, "During Method _SST"));
559 } 600 }
560 601
561 arg.integer.value = sleep_state;
562 status = acpi_evaluate_object(NULL, METHOD_NAME__BFS, &arg_list, NULL);
563 if (ACPI_FAILURE(status) && status != AE_NOT_FOUND) {
564 ACPI_EXCEPTION((AE_INFO, status, "During Method _BFS"));
565 }
566
567 /* 602 /*
568 * GPEs must be enabled before _WAK is called as GPEs 603 * GPEs must be enabled before _WAK is called as GPEs
569 * might get fired there 604 * might get fired there
diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
index ab04d848b19d..0822d9fc1cb4 100644
--- a/drivers/acpi/numa.c
+++ b/drivers/acpi/numa.c
@@ -38,9 +38,9 @@ ACPI_MODULE_NAME("numa");
38static nodemask_t nodes_found_map = NODE_MASK_NONE; 38static nodemask_t nodes_found_map = NODE_MASK_NONE;
39 39
40/* maps to convert between proximity domain and logical node ID */ 40/* maps to convert between proximity domain and logical node ID */
41static int __cpuinitdata pxm_to_node_map[MAX_PXM_DOMAINS] 41static int pxm_to_node_map[MAX_PXM_DOMAINS]
42 = { [0 ... MAX_PXM_DOMAINS - 1] = NID_INVAL }; 42 = { [0 ... MAX_PXM_DOMAINS - 1] = NID_INVAL };
43static int __cpuinitdata node_to_pxm_map[MAX_NUMNODES] 43static int node_to_pxm_map[MAX_NUMNODES]
44 = { [0 ... MAX_NUMNODES - 1] = PXM_INVAL }; 44 = { [0 ... MAX_NUMNODES - 1] = PXM_INVAL };
45 45
46int pxm_to_node(int pxm) 46int pxm_to_node(int pxm)
diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
index aabc6ca4a81c..e96f3d933f67 100644
--- a/drivers/acpi/osl.c
+++ b/drivers/acpi/osl.c
@@ -77,11 +77,55 @@ static struct workqueue_struct *kacpi_notify_wq;
77#define OSI_STRING_LENGTH_MAX 64 /* arbitrary */ 77#define OSI_STRING_LENGTH_MAX 64 /* arbitrary */
78static char osi_additional_string[OSI_STRING_LENGTH_MAX]; 78static char osi_additional_string[OSI_STRING_LENGTH_MAX];
79 79
80static int osi_linux; /* disable _OSI(Linux) by default */ 80/*
81 * "Ode to _OSI(Linux)"
82 *
83 * osi_linux -- Control response to BIOS _OSI(Linux) query.
84 *
85 * As Linux evolves, the features that it supports change.
86 * So an OSI string such as "Linux" is not specific enough
87 * to be useful across multiple versions of Linux. It
88 * doesn't identify any particular feature, interface,
89 * or even any particular version of Linux...
90 *
91 * Unfortunately, Linux-2.6.22 and earlier responded "yes"
92 * to a BIOS _OSI(Linux) query. When
93 * a reference mobile BIOS started using it, its use
94 * started to spread to many vendor platforms.
95 * As it is not supportable, we need to halt that spread.
96 *
97 * Today, most BIOS references to _OSI(Linux) are noise --
98 * they have no functional effect and are just dead code
99 * carried over from the reference BIOS.
100 *
101 * The next most common case is that _OSI(Linux) harms Linux,
102 * usually by causing the BIOS to follow paths that are
103 * not tested during Windows validation.
104 *
105 * Finally, there is a short list of platforms
106 * where OSI(Linux) benefits Linux.
107 *
108 * In Linux-2.6.23, OSI(Linux) is first disabled by default.
109 * DMI is used to disable the dmesg warning about OSI(Linux)
110 * on platforms where it is known to have no effect.
111 * But a dmesg warning remains for systems where
112 * we do not know if OSI(Linux) is good or bad for the system.
113 * DMI is also used to enable OSI(Linux) for the machines
114 * that are known to need it.
115 *
116 * BIOS writers should NOT query _OSI(Linux) on future systems.
117 * It will be ignored by default, and to get Linux to
118 * not ignore it will require a kernel source update to
119 * add a DMI entry, or a boot-time "acpi_osi=Linux" invocation.
120 */
121#define OSI_LINUX_ENABLE 0
81 122
82#ifdef CONFIG_DMI 123struct osi_linux {
83static struct __initdata dmi_system_id acpi_osl_dmi_table[]; 124 unsigned int enable:1;
84#endif 125 unsigned int dmi:1;
126 unsigned int cmdline:1;
127 unsigned int known:1;
128} osi_linux = { OSI_LINUX_ENABLE, 0, 0, 0};
85 129
86static void __init acpi_request_region (struct acpi_generic_address *addr, 130static void __init acpi_request_region (struct acpi_generic_address *addr,
87 unsigned int length, char *desc) 131 unsigned int length, char *desc)
@@ -133,7 +177,6 @@ device_initcall(acpi_reserve_resources);
133 177
134acpi_status __init acpi_os_initialize(void) 178acpi_status __init acpi_os_initialize(void)
135{ 179{
136 dmi_check_system(acpi_osl_dmi_table);
137 return AE_OK; 180 return AE_OK;
138} 181}
139 182
@@ -207,8 +250,12 @@ acpi_physical_address __init acpi_os_get_root_pointer(void)
207 "System description tables not found\n"); 250 "System description tables not found\n");
208 return 0; 251 return 0;
209 } 252 }
210 } else 253 } else {
211 return acpi_find_rsdp(); 254 acpi_physical_address pa = 0;
255
256 acpi_find_root_pointer(&pa);
257 return pa;
258 }
212} 259}
213 260
214void __iomem *acpi_os_map_memory(acpi_physical_address phys, acpi_size size) 261void __iomem *acpi_os_map_memory(acpi_physical_address phys, acpi_size size)
@@ -387,17 +434,14 @@ acpi_status acpi_os_read_port(acpi_io_address port, u32 * value, u32 width)
387 if (!value) 434 if (!value)
388 value = &dummy; 435 value = &dummy;
389 436
390 switch (width) { 437 *value = 0;
391 case 8: 438 if (width <= 8) {
392 *(u8 *) value = inb(port); 439 *(u8 *) value = inb(port);
393 break; 440 } else if (width <= 16) {
394 case 16:
395 *(u16 *) value = inw(port); 441 *(u16 *) value = inw(port);
396 break; 442 } else if (width <= 32) {
397 case 32:
398 *(u32 *) value = inl(port); 443 *(u32 *) value = inl(port);
399 break; 444 } else {
400 default:
401 BUG(); 445 BUG();
402 } 446 }
403 447
@@ -408,17 +452,13 @@ EXPORT_SYMBOL(acpi_os_read_port);
408 452
409acpi_status acpi_os_write_port(acpi_io_address port, u32 value, u32 width) 453acpi_status acpi_os_write_port(acpi_io_address port, u32 value, u32 width)
410{ 454{
411 switch (width) { 455 if (width <= 8) {
412 case 8:
413 outb(value, port); 456 outb(value, port);
414 break; 457 } else if (width <= 16) {
415 case 16:
416 outw(value, port); 458 outw(value, port);
417 break; 459 } else if (width <= 32) {
418 case 32:
419 outl(value, port); 460 outl(value, port);
420 break; 461 } else {
421 default:
422 BUG(); 462 BUG();
423 } 463 }
424 464
@@ -971,13 +1011,37 @@ static int __init acpi_os_name_setup(char *str)
971 1011
972__setup("acpi_os_name=", acpi_os_name_setup); 1012__setup("acpi_os_name=", acpi_os_name_setup);
973 1013
974static void enable_osi_linux(int enable) { 1014static void __init set_osi_linux(unsigned int enable)
1015{
1016 if (osi_linux.enable != enable) {
1017 osi_linux.enable = enable;
1018 printk(KERN_NOTICE PREFIX "%sed _OSI(Linux)\n",
1019 enable ? "Add": "Delet");
1020 }
1021 return;
1022}
1023
1024static void __init acpi_cmdline_osi_linux(unsigned int enable)
1025{
1026 osi_linux.cmdline = 1; /* cmdline set the default */
1027 set_osi_linux(enable);
1028
1029 return;
1030}
1031
1032void __init acpi_dmi_osi_linux(int enable, const struct dmi_system_id *d)
1033{
1034 osi_linux.dmi = 1; /* DMI knows that this box asks OSI(Linux) */
975 1035
976 if (osi_linux != enable) 1036 printk(KERN_NOTICE PREFIX "DMI detected: %s\n", d->ident);
977 printk(KERN_INFO PREFIX "%sabled _OSI(Linux)\n", 1037
978 enable ? "En": "Dis"); 1038 if (enable == -1)
1039 return;
1040
1041 osi_linux.known = 1; /* DMI knows which OSI(Linux) default needed */
1042
1043 set_osi_linux(enable);
979 1044
980 osi_linux = enable;
981 return; 1045 return;
982} 1046}
983 1047
@@ -994,12 +1058,12 @@ static int __init acpi_osi_setup(char *str)
994 printk(KERN_INFO PREFIX "_OSI method disabled\n"); 1058 printk(KERN_INFO PREFIX "_OSI method disabled\n");
995 acpi_gbl_create_osi_method = FALSE; 1059 acpi_gbl_create_osi_method = FALSE;
996 } else if (!strcmp("!Linux", str)) { 1060 } else if (!strcmp("!Linux", str)) {
997 enable_osi_linux(0); 1061 acpi_cmdline_osi_linux(0); /* !enable */
998 } else if (*str == '!') { 1062 } else if (*str == '!') {
999 if (acpi_osi_invalidate(++str) == AE_OK) 1063 if (acpi_osi_invalidate(++str) == AE_OK)
1000 printk(KERN_INFO PREFIX "Deleted _OSI(%s)\n", str); 1064 printk(KERN_INFO PREFIX "Deleted _OSI(%s)\n", str);
1001 } else if (!strcmp("Linux", str)) { 1065 } else if (!strcmp("Linux", str)) {
1002 enable_osi_linux(1); 1066 acpi_cmdline_osi_linux(1); /* enable */
1003 } else if (*osi_additional_string == '\0') { 1067 } else if (*osi_additional_string == '\0') {
1004 strncpy(osi_additional_string, str, OSI_STRING_LENGTH_MAX); 1068 strncpy(osi_additional_string, str, OSI_STRING_LENGTH_MAX);
1005 printk(KERN_INFO PREFIX "Added _OSI(%s)\n", str); 1069 printk(KERN_INFO PREFIX "Added _OSI(%s)\n", str);
@@ -1148,6 +1212,34 @@ acpi_status acpi_os_release_object(acpi_cache_t * cache, void *object)
1148 return (AE_OK); 1212 return (AE_OK);
1149} 1213}
1150 1214
1215/**
1216 * acpi_dmi_dump - dump DMI slots needed for blacklist entry
1217 *
1218 * Returns 0 on success
1219 */
1220int acpi_dmi_dump(void)
1221{
1222
1223 if (!dmi_available)
1224 return -1;
1225
1226 printk(KERN_NOTICE PREFIX "DMI System Vendor: %s\n",
1227 dmi_get_slot(DMI_SYS_VENDOR));
1228 printk(KERN_NOTICE PREFIX "DMI Product Name: %s\n",
1229 dmi_get_slot(DMI_PRODUCT_NAME));
1230 printk(KERN_NOTICE PREFIX "DMI Product Version: %s\n",
1231 dmi_get_slot(DMI_PRODUCT_VERSION));
1232 printk(KERN_NOTICE PREFIX "DMI Board Name: %s\n",
1233 dmi_get_slot(DMI_BOARD_NAME));
1234 printk(KERN_NOTICE PREFIX "DMI BIOS Vendor: %s\n",
1235 dmi_get_slot(DMI_BIOS_VENDOR));
1236 printk(KERN_NOTICE PREFIX "DMI BIOS Date: %s\n",
1237 dmi_get_slot(DMI_BIOS_DATE));
1238
1239 return 0;
1240}
1241
1242
1151/****************************************************************************** 1243/******************************************************************************
1152 * 1244 *
1153 * FUNCTION: acpi_os_validate_interface 1245 * FUNCTION: acpi_os_validate_interface
@@ -1167,13 +1259,29 @@ acpi_os_validate_interface (char *interface)
1167 if (!strncmp(osi_additional_string, interface, OSI_STRING_LENGTH_MAX)) 1259 if (!strncmp(osi_additional_string, interface, OSI_STRING_LENGTH_MAX))
1168 return AE_OK; 1260 return AE_OK;
1169 if (!strcmp("Linux", interface)) { 1261 if (!strcmp("Linux", interface)) {
1170 printk(KERN_WARNING PREFIX 1262
1171 "System BIOS is requesting _OSI(Linux)\n"); 1263 printk(KERN_NOTICE PREFIX
1172 printk(KERN_WARNING PREFIX 1264 "BIOS _OSI(Linux) query %s%s\n",
1173 "If \"acpi_osi=Linux\" works better,\n" 1265 osi_linux.enable ? "honored" : "ignored",
1174 "Please send dmidecode " 1266 osi_linux.cmdline ? " via cmdline" :
1175 "to linux-acpi@vger.kernel.org\n"); 1267 osi_linux.dmi ? " via DMI" : "");
1176 if(osi_linux) 1268
1269 if (!osi_linux.dmi) {
1270 if (acpi_dmi_dump())
1271 printk(KERN_NOTICE PREFIX
1272 "[please extract dmidecode output]\n");
1273 printk(KERN_NOTICE PREFIX
1274 "Please send DMI info above to "
1275 "linux-acpi@vger.kernel.org\n");
1276 }
1277 if (!osi_linux.known && !osi_linux.cmdline) {
1278 printk(KERN_NOTICE PREFIX
1279 "If \"acpi_osi=%sLinux\" works better, "
1280 "please notify linux-acpi@vger.kernel.org\n",
1281 osi_linux.enable ? "!" : "");
1282 }
1283
1284 if (osi_linux.enable)
1177 return AE_OK; 1285 return AE_OK;
1178 } 1286 }
1179 return AE_SUPPORT; 1287 return AE_SUPPORT;
@@ -1205,28 +1313,4 @@ acpi_os_validate_address (
1205 return AE_OK; 1313 return AE_OK;
1206} 1314}
1207 1315
1208#ifdef CONFIG_DMI
1209static int dmi_osi_linux(const struct dmi_system_id *d)
1210{
1211 printk(KERN_NOTICE "%s detected: enabling _OSI(Linux)\n", d->ident);
1212 enable_osi_linux(1);
1213 return 0;
1214}
1215
1216static struct dmi_system_id acpi_osl_dmi_table[] __initdata = {
1217 /*
1218 * Boxes that need _OSI(Linux)
1219 */
1220 {
1221 .callback = dmi_osi_linux,
1222 .ident = "Intel Napa CRB",
1223 .matches = {
1224 DMI_MATCH(DMI_BOARD_VENDOR, "Intel Corporation"),
1225 DMI_MATCH(DMI_BOARD_NAME, "MPAD-MSAE Customer Reference Boards"),
1226 },
1227 },
1228 {}
1229};
1230#endif /* CONFIG_DMI */
1231
1232#endif 1316#endif
diff --git a/drivers/acpi/pci_bind.c b/drivers/acpi/pci_bind.c
index 028969370bbf..388300de005d 100644
--- a/drivers/acpi/pci_bind.c
+++ b/drivers/acpi/pci_bind.c
@@ -294,9 +294,6 @@ int acpi_pci_unbind(struct acpi_device *device)
294 acpi_get_data(device->handle, acpi_pci_data_handler, 294 acpi_get_data(device->handle, acpi_pci_data_handler,
295 (void **)&data); 295 (void **)&data);
296 if (ACPI_FAILURE(status)) { 296 if (ACPI_FAILURE(status)) {
297 ACPI_EXCEPTION((AE_INFO, status,
298 "Unable to get data from device %s",
299 acpi_device_bid(device)));
300 result = -ENODEV; 297 result = -ENODEV;
301 goto end; 298 goto end;
302 } 299 }
diff --git a/drivers/acpi/pci_irq.c b/drivers/acpi/pci_irq.c
index dd3186abe07a..62010c2481b3 100644
--- a/drivers/acpi/pci_irq.c
+++ b/drivers/acpi/pci_irq.c
@@ -429,6 +429,15 @@ int acpi_pci_irq_enable(struct pci_dev *dev)
429 &polarity, &link, 429 &polarity, &link,
430 acpi_pci_allocate_irq); 430 acpi_pci_allocate_irq);
431 431
432 if (irq < 0) {
433 /*
434 * IDE legacy mode controller IRQs are magic. Why do compat
435 * extensions always make such a nasty mess.
436 */
437 if (dev->class >> 8 == PCI_CLASS_STORAGE_IDE &&
438 (dev->class & 0x05) == 0)
439 return 0;
440 }
432 /* 441 /*
433 * No IRQ known to the ACPI subsystem - maybe the BIOS / 442 * No IRQ known to the ACPI subsystem - maybe the BIOS /
434 * driver reported one, then use it. Exit in any case. 443 * driver reported one, then use it. Exit in any case.
diff --git a/drivers/acpi/pci_link.c b/drivers/acpi/pci_link.c
index c9f526e55392..5400ea173f6f 100644
--- a/drivers/acpi/pci_link.c
+++ b/drivers/acpi/pci_link.c
@@ -911,7 +911,7 @@ __setup("acpi_irq_balance", acpi_irq_balance_set);
911 911
912/* FIXME: we will remove this interface after all drivers call pci_disable_device */ 912/* FIXME: we will remove this interface after all drivers call pci_disable_device */
913static struct sysdev_class irqrouter_sysdev_class = { 913static struct sysdev_class irqrouter_sysdev_class = {
914 set_kset_name("irqrouter"), 914 .name = "irqrouter",
915 .resume = irqrouter_resume, 915 .resume = irqrouter_resume,
916}; 916};
917 917
diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c
index 235a51e328c3..c53113e18004 100644
--- a/drivers/acpi/processor_core.c
+++ b/drivers/acpi/processor_core.c
@@ -494,7 +494,7 @@ static int get_cpu_id(acpi_handle handle, u32 acpi_id)
494 if (apic_id == -1) 494 if (apic_id == -1)
495 return apic_id; 495 return apic_id;
496 496
497 for (i = 0; i < NR_CPUS; ++i) { 497 for_each_possible_cpu(i) {
498 if (cpu_physical_id(i) == apic_id) 498 if (cpu_physical_id(i) == apic_id)
499 return i; 499 return i;
500 } 500 }
@@ -612,12 +612,6 @@ static int acpi_processor_get_info(struct acpi_processor *pr, unsigned has_uid)
612 request_region(pr->throttling.address, 6, "ACPI CPU throttle"); 612 request_region(pr->throttling.address, 6, "ACPI CPU throttle");
613 } 613 }
614 614
615#ifdef CONFIG_CPU_FREQ
616 acpi_processor_ppc_has_changed(pr);
617#endif
618 acpi_processor_get_throttling_info(pr);
619 acpi_processor_get_limit_info(pr);
620
621 return 0; 615 return 0;
622} 616}
623 617
@@ -638,7 +632,7 @@ static int __cpuinit acpi_processor_start(struct acpi_device *device)
638 return 0; 632 return 0;
639 } 633 }
640 634
641 BUG_ON((pr->id >= NR_CPUS) || (pr->id < 0)); 635 BUG_ON((pr->id >= nr_cpu_ids) || (pr->id < 0));
642 636
643 /* 637 /*
644 * Buggy BIOS check 638 * Buggy BIOS check
@@ -647,7 +641,7 @@ static int __cpuinit acpi_processor_start(struct acpi_device *device)
647 */ 641 */
648 if (processor_device_array[pr->id] != NULL && 642 if (processor_device_array[pr->id] != NULL &&
649 processor_device_array[pr->id] != device) { 643 processor_device_array[pr->id] != device) {
650 printk(KERN_WARNING "BIOS reported wrong ACPI id" 644 printk(KERN_WARNING "BIOS reported wrong ACPI id "
651 "for the processor\n"); 645 "for the processor\n");
652 return -ENODEV; 646 return -ENODEV;
653 } 647 }
@@ -665,6 +659,12 @@ static int __cpuinit acpi_processor_start(struct acpi_device *device)
665 /* _PDC call should be done before doing anything else (if reqd.). */ 659 /* _PDC call should be done before doing anything else (if reqd.). */
666 arch_acpi_processor_init_pdc(pr); 660 arch_acpi_processor_init_pdc(pr);
667 acpi_processor_set_pdc(pr); 661 acpi_processor_set_pdc(pr);
662#ifdef CONFIG_CPU_FREQ
663 acpi_processor_ppc_has_changed(pr);
664#endif
665 acpi_processor_get_throttling_info(pr);
666 acpi_processor_get_limit_info(pr);
667
668 668
669 acpi_processor_power_init(pr, device); 669 acpi_processor_power_init(pr, device);
670 670
@@ -684,7 +684,7 @@ static void acpi_processor_notify(acpi_handle handle, u32 event, void *data)
684{ 684{
685 struct acpi_processor *pr = data; 685 struct acpi_processor *pr = data;
686 struct acpi_device *device = NULL; 686 struct acpi_device *device = NULL;
687 687 int saved;
688 688
689 if (!pr) 689 if (!pr)
690 return; 690 return;
@@ -694,7 +694,10 @@ static void acpi_processor_notify(acpi_handle handle, u32 event, void *data)
694 694
695 switch (event) { 695 switch (event) {
696 case ACPI_PROCESSOR_NOTIFY_PERFORMANCE: 696 case ACPI_PROCESSOR_NOTIFY_PERFORMANCE:
697 saved = pr->performance_platform_limit;
697 acpi_processor_ppc_has_changed(pr); 698 acpi_processor_ppc_has_changed(pr);
699 if (saved == pr->performance_platform_limit)
700 break;
698 acpi_bus_generate_proc_event(device, event, 701 acpi_bus_generate_proc_event(device, event,
699 pr->performance_platform_limit); 702 pr->performance_platform_limit);
700 acpi_bus_generate_netlink_event(device->pnp.device_class, 703 acpi_bus_generate_netlink_event(device->pnp.device_class,
@@ -771,7 +774,7 @@ static int acpi_processor_remove(struct acpi_device *device, int type)
771 774
772 pr = acpi_driver_data(device); 775 pr = acpi_driver_data(device);
773 776
774 if (pr->id >= NR_CPUS) { 777 if (pr->id >= nr_cpu_ids) {
775 kfree(pr); 778 kfree(pr);
776 return 0; 779 return 0;
777 } 780 }
@@ -809,11 +812,18 @@ static int is_processor_present(acpi_handle handle)
809 812
810 813
811 status = acpi_evaluate_integer(handle, "_STA", NULL, &sta); 814 status = acpi_evaluate_integer(handle, "_STA", NULL, &sta);
812 if (ACPI_FAILURE(status) || !(sta & ACPI_STA_DEVICE_PRESENT)) { 815 /*
813 ACPI_EXCEPTION((AE_INFO, status, "Processor Device is not present")); 816 * if a processor object does not have an _STA object,
814 return 0; 817 * OSPM assumes that the processor is present.
815 } 818 */
816 return 1; 819 if (status == AE_NOT_FOUND)
820 return 1;
821
822 if (ACPI_SUCCESS(status) && (sta & ACPI_STA_DEVICE_PRESENT))
823 return 1;
824
825 ACPI_EXCEPTION((AE_INFO, status, "Processor Device is not present"));
826 return 0;
817} 827}
818 828
819static 829static
@@ -842,7 +852,7 @@ int acpi_processor_device_add(acpi_handle handle, struct acpi_device **device)
842 if (!pr) 852 if (!pr)
843 return -ENODEV; 853 return -ENODEV;
844 854
845 if ((pr->id >= 0) && (pr->id < NR_CPUS)) { 855 if ((pr->id >= 0) && (pr->id < nr_cpu_ids)) {
846 kobject_uevent(&(*device)->dev.kobj, KOBJ_ONLINE); 856 kobject_uevent(&(*device)->dev.kobj, KOBJ_ONLINE);
847 } 857 }
848 return 0; 858 return 0;
@@ -880,13 +890,13 @@ acpi_processor_hotplug_notify(acpi_handle handle, u32 event, void *data)
880 break; 890 break;
881 } 891 }
882 892
883 if (pr->id >= 0 && (pr->id < NR_CPUS)) { 893 if (pr->id >= 0 && (pr->id < nr_cpu_ids)) {
884 kobject_uevent(&device->dev.kobj, KOBJ_OFFLINE); 894 kobject_uevent(&device->dev.kobj, KOBJ_OFFLINE);
885 break; 895 break;
886 } 896 }
887 897
888 result = acpi_processor_start(device); 898 result = acpi_processor_start(device);
889 if ((!result) && ((pr->id >= 0) && (pr->id < NR_CPUS))) { 899 if ((!result) && ((pr->id >= 0) && (pr->id < nr_cpu_ids))) {
890 kobject_uevent(&device->dev.kobj, KOBJ_ONLINE); 900 kobject_uevent(&device->dev.kobj, KOBJ_ONLINE);
891 } else { 901 } else {
892 printk(KERN_ERR PREFIX "Device [%s] failed to start\n", 902 printk(KERN_ERR PREFIX "Device [%s] failed to start\n",
@@ -909,7 +919,7 @@ acpi_processor_hotplug_notify(acpi_handle handle, u32 event, void *data)
909 return; 919 return;
910 } 920 }
911 921
912 if ((pr->id < NR_CPUS) && (cpu_present(pr->id))) 922 if ((pr->id < nr_cpu_ids) && (cpu_present(pr->id)))
913 kobject_uevent(&device->dev.kobj, KOBJ_OFFLINE); 923 kobject_uevent(&device->dev.kobj, KOBJ_OFFLINE);
914 break; 924 break;
915 default: 925 default:
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index f996d0e37689..199ea2146153 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -38,7 +38,7 @@
38#include <linux/dmi.h> 38#include <linux/dmi.h>
39#include <linux/moduleparam.h> 39#include <linux/moduleparam.h>
40#include <linux/sched.h> /* need_resched() */ 40#include <linux/sched.h> /* need_resched() */
41#include <linux/latency.h> 41#include <linux/pm_qos_params.h>
42#include <linux/clockchips.h> 42#include <linux/clockchips.h>
43#include <linux/cpuidle.h> 43#include <linux/cpuidle.h>
44 44
@@ -76,7 +76,11 @@ static void (*pm_idle_save) (void) __read_mostly;
76#define PM_TIMER_TICKS_TO_US(p) (((p) * 1000)/(PM_TIMER_FREQUENCY/1000)) 76#define PM_TIMER_TICKS_TO_US(p) (((p) * 1000)/(PM_TIMER_FREQUENCY/1000))
77 77
78static unsigned int max_cstate __read_mostly = ACPI_PROCESSOR_MAX_POWER; 78static unsigned int max_cstate __read_mostly = ACPI_PROCESSOR_MAX_POWER;
79#ifdef CONFIG_CPU_IDLE
79module_param(max_cstate, uint, 0000); 80module_param(max_cstate, uint, 0000);
81#else
82module_param(max_cstate, uint, 0644);
83#endif
80static unsigned int nocst __read_mostly; 84static unsigned int nocst __read_mostly;
81module_param(nocst, uint, 0000); 85module_param(nocst, uint, 0000);
82 86
@@ -197,6 +201,19 @@ static inline u32 ticks_elapsed_in_us(u32 t1, u32 t2)
197 return PM_TIMER_TICKS_TO_US((0xFFFFFFFF - t1) + t2); 201 return PM_TIMER_TICKS_TO_US((0xFFFFFFFF - t1) + t2);
198} 202}
199 203
204static void acpi_safe_halt(void)
205{
206 current_thread_info()->status &= ~TS_POLLING;
207 /*
208 * TS_POLLING-cleared state must be visible before we
209 * test NEED_RESCHED:
210 */
211 smp_mb();
212 if (!need_resched())
213 safe_halt();
214 current_thread_info()->status |= TS_POLLING;
215}
216
200#ifndef CONFIG_CPU_IDLE 217#ifndef CONFIG_CPU_IDLE
201 218
202static void 219static void
@@ -239,19 +256,6 @@ acpi_processor_power_activate(struct acpi_processor *pr,
239 return; 256 return;
240} 257}
241 258
242static void acpi_safe_halt(void)
243{
244 current_thread_info()->status &= ~TS_POLLING;
245 /*
246 * TS_POLLING-cleared state must be visible before we
247 * test NEED_RESCHED:
248 */
249 smp_mb();
250 if (!need_resched())
251 safe_halt();
252 current_thread_info()->status |= TS_POLLING;
253}
254
255static atomic_t c3_cpu_count; 259static atomic_t c3_cpu_count;
256 260
257/* Common C-state entry for C2, C3, .. */ 261/* Common C-state entry for C2, C3, .. */
@@ -353,6 +357,26 @@ int acpi_processor_resume(struct acpi_device * device)
353 return 0; 357 return 0;
354} 358}
355 359
360#if defined (CONFIG_GENERIC_TIME) && defined (CONFIG_X86_TSC)
361static int tsc_halts_in_c(int state)
362{
363 switch (boot_cpu_data.x86_vendor) {
364 case X86_VENDOR_AMD:
365 /*
366 * AMD Fam10h TSC will tick in all
367 * C/P/S0/S1 states when this bit is set.
368 */
369 if (boot_cpu_has(X86_FEATURE_CONSTANT_TSC))
370 return 0;
371 /*FALL THROUGH*/
372 case X86_VENDOR_INTEL:
373 /* Several cases known where TSC halts in C2 too */
374 default:
375 return state > ACPI_STATE_C1;
376 }
377}
378#endif
379
356#ifndef CONFIG_CPU_IDLE 380#ifndef CONFIG_CPU_IDLE
357static void acpi_processor_idle(void) 381static void acpi_processor_idle(void)
358{ 382{
@@ -512,7 +536,8 @@ static void acpi_processor_idle(void)
512 536
513#if defined (CONFIG_GENERIC_TIME) && defined (CONFIG_X86_TSC) 537#if defined (CONFIG_GENERIC_TIME) && defined (CONFIG_X86_TSC)
514 /* TSC halts in C2, so notify users */ 538 /* TSC halts in C2, so notify users */
515 mark_tsc_unstable("possible TSC halt in C2"); 539 if (tsc_halts_in_c(ACPI_STATE_C2))
540 mark_tsc_unstable("possible TSC halt in C2");
516#endif 541#endif
517 /* Compute time (ticks) that we were actually asleep */ 542 /* Compute time (ticks) that we were actually asleep */
518 sleep_ticks = ticks_elapsed(t1, t2); 543 sleep_ticks = ticks_elapsed(t1, t2);
@@ -530,6 +555,12 @@ static void acpi_processor_idle(void)
530 break; 555 break;
531 556
532 case ACPI_STATE_C3: 557 case ACPI_STATE_C3:
558 acpi_unlazy_tlb(smp_processor_id());
559 /*
560 * Must be done before busmaster disable as we might
561 * need to access HPET !
562 */
563 acpi_state_timer_broadcast(pr, cx, 1);
533 /* 564 /*
534 * disable bus master 565 * disable bus master
535 * bm_check implies we need ARB_DIS 566 * bm_check implies we need ARB_DIS
@@ -557,7 +588,6 @@ static void acpi_processor_idle(void)
557 /* Get start time (ticks) */ 588 /* Get start time (ticks) */
558 t1 = inl(acpi_gbl_FADT.xpm_timer_block.address); 589 t1 = inl(acpi_gbl_FADT.xpm_timer_block.address);
559 /* Invoke C3 */ 590 /* Invoke C3 */
560 acpi_state_timer_broadcast(pr, cx, 1);
561 /* Tell the scheduler that we are going deep-idle: */ 591 /* Tell the scheduler that we are going deep-idle: */
562 sched_clock_idle_sleep_event(); 592 sched_clock_idle_sleep_event();
563 acpi_cstate_enter(cx); 593 acpi_cstate_enter(cx);
@@ -571,7 +601,8 @@ static void acpi_processor_idle(void)
571 601
572#if defined (CONFIG_GENERIC_TIME) && defined (CONFIG_X86_TSC) 602#if defined (CONFIG_GENERIC_TIME) && defined (CONFIG_X86_TSC)
573 /* TSC halts in C3, so notify users */ 603 /* TSC halts in C3, so notify users */
574 mark_tsc_unstable("TSC halts in C3"); 604 if (tsc_halts_in_c(ACPI_STATE_C3))
605 mark_tsc_unstable("TSC halts in C3");
575#endif 606#endif
576 /* Compute time (ticks) that we were actually asleep */ 607 /* Compute time (ticks) that we were actually asleep */
577 sleep_ticks = ticks_elapsed(t1, t2); 608 sleep_ticks = ticks_elapsed(t1, t2);
@@ -617,7 +648,8 @@ static void acpi_processor_idle(void)
617 if (cx->promotion.state && 648 if (cx->promotion.state &&
618 ((cx->promotion.state - pr->power.states) <= max_cstate)) { 649 ((cx->promotion.state - pr->power.states) <= max_cstate)) {
619 if (sleep_ticks > cx->promotion.threshold.ticks && 650 if (sleep_ticks > cx->promotion.threshold.ticks &&
620 cx->promotion.state->latency <= system_latency_constraint()) { 651 cx->promotion.state->latency <=
652 pm_qos_requirement(PM_QOS_CPU_DMA_LATENCY)) {
621 cx->promotion.count++; 653 cx->promotion.count++;
622 cx->demotion.count = 0; 654 cx->demotion.count = 0;
623 if (cx->promotion.count >= 655 if (cx->promotion.count >=
@@ -661,7 +693,8 @@ static void acpi_processor_idle(void)
661 * or if the latency of the current state is unacceptable 693 * or if the latency of the current state is unacceptable
662 */ 694 */
663 if ((pr->power.state - pr->power.states) > max_cstate || 695 if ((pr->power.state - pr->power.states) > max_cstate ||
664 pr->power.state->latency > system_latency_constraint()) { 696 pr->power.state->latency >
697 pm_qos_requirement(PM_QOS_CPU_DMA_LATENCY)) {
665 if (cx->demotion.state) 698 if (cx->demotion.state)
666 next_state = cx->demotion.state; 699 next_state = cx->demotion.state;
667 } 700 }
@@ -1169,7 +1202,7 @@ static int acpi_processor_power_seq_show(struct seq_file *seq, void *offset)
1169 "maximum allowed latency: %d usec\n", 1202 "maximum allowed latency: %d usec\n",
1170 pr->power.state ? pr->power.state - pr->power.states : 0, 1203 pr->power.state ? pr->power.state - pr->power.states : 0,
1171 max_cstate, (unsigned)pr->power.bm_activity, 1204 max_cstate, (unsigned)pr->power.bm_activity,
1172 system_latency_constraint()); 1205 pm_qos_requirement(PM_QOS_CPU_DMA_LATENCY));
1173 1206
1174 seq_puts(seq, "states:\n"); 1207 seq_puts(seq, "states:\n");
1175 1208
@@ -1373,15 +1406,7 @@ static int acpi_idle_enter_c1(struct cpuidle_device *dev,
1373 if (pr->flags.bm_check) 1406 if (pr->flags.bm_check)
1374 acpi_idle_update_bm_rld(pr, cx); 1407 acpi_idle_update_bm_rld(pr, cx);
1375 1408
1376 current_thread_info()->status &= ~TS_POLLING; 1409 acpi_safe_halt();
1377 /*
1378 * TS_POLLING-cleared state must be visible before we test
1379 * NEED_RESCHED:
1380 */
1381 smp_mb();
1382 if (!need_resched())
1383 safe_halt();
1384 current_thread_info()->status |= TS_POLLING;
1385 1410
1386 cx->usage++; 1411 cx->usage++;
1387 1412
@@ -1399,6 +1424,8 @@ static int acpi_idle_enter_simple(struct cpuidle_device *dev,
1399 struct acpi_processor *pr; 1424 struct acpi_processor *pr;
1400 struct acpi_processor_cx *cx = cpuidle_get_statedata(state); 1425 struct acpi_processor_cx *cx = cpuidle_get_statedata(state);
1401 u32 t1, t2; 1426 u32 t1, t2;
1427 int sleep_ticks = 0;
1428
1402 pr = processors[smp_processor_id()]; 1429 pr = processors[smp_processor_id()];
1403 1430
1404 if (unlikely(!pr)) 1431 if (unlikely(!pr))
@@ -1407,9 +1434,6 @@ static int acpi_idle_enter_simple(struct cpuidle_device *dev,
1407 if (acpi_idle_suspend) 1434 if (acpi_idle_suspend)
1408 return(acpi_idle_enter_c1(dev, state)); 1435 return(acpi_idle_enter_c1(dev, state));
1409 1436
1410 if (pr->flags.bm_check)
1411 acpi_idle_update_bm_rld(pr, cx);
1412
1413 local_irq_disable(); 1437 local_irq_disable();
1414 current_thread_info()->status &= ~TS_POLLING; 1438 current_thread_info()->status &= ~TS_POLLING;
1415 /* 1439 /*
@@ -1424,18 +1448,34 @@ static int acpi_idle_enter_simple(struct cpuidle_device *dev,
1424 return 0; 1448 return 0;
1425 } 1449 }
1426 1450
1451 acpi_unlazy_tlb(smp_processor_id());
1452 /*
1453 * Must be done before busmaster disable as we might need to
1454 * access HPET !
1455 */
1456 acpi_state_timer_broadcast(pr, cx, 1);
1457
1458 if (pr->flags.bm_check)
1459 acpi_idle_update_bm_rld(pr, cx);
1460
1427 if (cx->type == ACPI_STATE_C3) 1461 if (cx->type == ACPI_STATE_C3)
1428 ACPI_FLUSH_CPU_CACHE(); 1462 ACPI_FLUSH_CPU_CACHE();
1429 1463
1430 t1 = inl(acpi_gbl_FADT.xpm_timer_block.address); 1464 t1 = inl(acpi_gbl_FADT.xpm_timer_block.address);
1431 acpi_state_timer_broadcast(pr, cx, 1); 1465 /* Tell the scheduler that we are going deep-idle: */
1466 sched_clock_idle_sleep_event();
1432 acpi_idle_do_entry(cx); 1467 acpi_idle_do_entry(cx);
1433 t2 = inl(acpi_gbl_FADT.xpm_timer_block.address); 1468 t2 = inl(acpi_gbl_FADT.xpm_timer_block.address);
1434 1469
1435#if defined (CONFIG_GENERIC_TIME) && defined (CONFIG_X86_TSC) 1470#if defined (CONFIG_GENERIC_TIME) && defined (CONFIG_X86_TSC)
1436 /* TSC could halt in idle, so notify users */ 1471 /* TSC could halt in idle, so notify users */
1437 mark_tsc_unstable("TSC halts in idle");; 1472 if (tsc_halts_in_c(cx->type))
1473 mark_tsc_unstable("TSC halts in idle");;
1438#endif 1474#endif
1475 sleep_ticks = ticks_elapsed(t1, t2);
1476
1477 /* Tell the scheduler how much we idled: */
1478 sched_clock_idle_wakeup_event(sleep_ticks*PM_TIMER_TICK_NS);
1439 1479
1440 local_irq_enable(); 1480 local_irq_enable();
1441 current_thread_info()->status |= TS_POLLING; 1481 current_thread_info()->status |= TS_POLLING;
@@ -1443,7 +1483,7 @@ static int acpi_idle_enter_simple(struct cpuidle_device *dev,
1443 cx->usage++; 1483 cx->usage++;
1444 1484
1445 acpi_state_timer_broadcast(pr, cx, 0); 1485 acpi_state_timer_broadcast(pr, cx, 0);
1446 cx->time += ticks_elapsed(t1, t2); 1486 cx->time += sleep_ticks;
1447 return ticks_elapsed_in_us(t1, t2); 1487 return ticks_elapsed_in_us(t1, t2);
1448} 1488}
1449 1489
@@ -1463,6 +1503,8 @@ static int acpi_idle_enter_bm(struct cpuidle_device *dev,
1463 struct acpi_processor *pr; 1503 struct acpi_processor *pr;
1464 struct acpi_processor_cx *cx = cpuidle_get_statedata(state); 1504 struct acpi_processor_cx *cx = cpuidle_get_statedata(state);
1465 u32 t1, t2; 1505 u32 t1, t2;
1506 int sleep_ticks = 0;
1507
1466 pr = processors[smp_processor_id()]; 1508 pr = processors[smp_processor_id()];
1467 1509
1468 if (unlikely(!pr)) 1510 if (unlikely(!pr))
@@ -1471,6 +1513,15 @@ static int acpi_idle_enter_bm(struct cpuidle_device *dev,
1471 if (acpi_idle_suspend) 1513 if (acpi_idle_suspend)
1472 return(acpi_idle_enter_c1(dev, state)); 1514 return(acpi_idle_enter_c1(dev, state));
1473 1515
1516 if (acpi_idle_bm_check()) {
1517 if (dev->safe_state) {
1518 return dev->safe_state->enter(dev, dev->safe_state);
1519 } else {
1520 acpi_safe_halt();
1521 return 0;
1522 }
1523 }
1524
1474 local_irq_disable(); 1525 local_irq_disable();
1475 current_thread_info()->status &= ~TS_POLLING; 1526 current_thread_info()->status &= ~TS_POLLING;
1476 /* 1527 /*
@@ -1485,46 +1536,57 @@ static int acpi_idle_enter_bm(struct cpuidle_device *dev,
1485 return 0; 1536 return 0;
1486 } 1537 }
1487 1538
1539 /* Tell the scheduler that we are going deep-idle: */
1540 sched_clock_idle_sleep_event();
1488 /* 1541 /*
1489 * Must be done before busmaster disable as we might need to 1542 * Must be done before busmaster disable as we might need to
1490 * access HPET ! 1543 * access HPET !
1491 */ 1544 */
1492 acpi_state_timer_broadcast(pr, cx, 1); 1545 acpi_state_timer_broadcast(pr, cx, 1);
1493 1546
1494 if (acpi_idle_bm_check()) { 1547 acpi_idle_update_bm_rld(pr, cx);
1495 cx = pr->power.bm_state;
1496
1497 acpi_idle_update_bm_rld(pr, cx);
1498
1499 t1 = inl(acpi_gbl_FADT.xpm_timer_block.address);
1500 acpi_idle_do_entry(cx);
1501 t2 = inl(acpi_gbl_FADT.xpm_timer_block.address);
1502 } else {
1503 acpi_idle_update_bm_rld(pr, cx);
1504 1548
1549 /*
1550 * disable bus master
1551 * bm_check implies we need ARB_DIS
1552 * !bm_check implies we need cache flush
1553 * bm_control implies whether we can do ARB_DIS
1554 *
1555 * That leaves a case where bm_check is set and bm_control is
1556 * not set. In that case we cannot do much, we enter C3
1557 * without doing anything.
1558 */
1559 if (pr->flags.bm_check && pr->flags.bm_control) {
1505 spin_lock(&c3_lock); 1560 spin_lock(&c3_lock);
1506 c3_cpu_count++; 1561 c3_cpu_count++;
1507 /* Disable bus master arbitration when all CPUs are in C3 */ 1562 /* Disable bus master arbitration when all CPUs are in C3 */
1508 if (c3_cpu_count == num_online_cpus()) 1563 if (c3_cpu_count == num_online_cpus())
1509 acpi_set_register(ACPI_BITREG_ARB_DISABLE, 1); 1564 acpi_set_register(ACPI_BITREG_ARB_DISABLE, 1);
1510 spin_unlock(&c3_lock); 1565 spin_unlock(&c3_lock);
1566 } else if (!pr->flags.bm_check) {
1567 ACPI_FLUSH_CPU_CACHE();
1568 }
1511 1569
1512 t1 = inl(acpi_gbl_FADT.xpm_timer_block.address); 1570 t1 = inl(acpi_gbl_FADT.xpm_timer_block.address);
1513 acpi_idle_do_entry(cx); 1571 acpi_idle_do_entry(cx);
1514 t2 = inl(acpi_gbl_FADT.xpm_timer_block.address); 1572 t2 = inl(acpi_gbl_FADT.xpm_timer_block.address);
1515 1573
1574 /* Re-enable bus master arbitration */
1575 if (pr->flags.bm_check && pr->flags.bm_control) {
1516 spin_lock(&c3_lock); 1576 spin_lock(&c3_lock);
1517 /* Re-enable bus master arbitration */ 1577 acpi_set_register(ACPI_BITREG_ARB_DISABLE, 0);
1518 if (c3_cpu_count == num_online_cpus())
1519 acpi_set_register(ACPI_BITREG_ARB_DISABLE, 0);
1520 c3_cpu_count--; 1578 c3_cpu_count--;
1521 spin_unlock(&c3_lock); 1579 spin_unlock(&c3_lock);
1522 } 1580 }
1523 1581
1524#if defined (CONFIG_GENERIC_TIME) && defined (CONFIG_X86_TSC) 1582#if defined (CONFIG_GENERIC_TIME) && defined (CONFIG_X86_TSC)
1525 /* TSC could halt in idle, so notify users */ 1583 /* TSC could halt in idle, so notify users */
1526 mark_tsc_unstable("TSC halts in idle"); 1584 if (tsc_halts_in_c(ACPI_STATE_C3))
1585 mark_tsc_unstable("TSC halts in idle");
1527#endif 1586#endif
1587 sleep_ticks = ticks_elapsed(t1, t2);
1588 /* Tell the scheduler how much we idled: */
1589 sched_clock_idle_wakeup_event(sleep_ticks*PM_TIMER_TICK_NS);
1528 1590
1529 local_irq_enable(); 1591 local_irq_enable();
1530 current_thread_info()->status |= TS_POLLING; 1592 current_thread_info()->status |= TS_POLLING;
@@ -1532,7 +1594,7 @@ static int acpi_idle_enter_bm(struct cpuidle_device *dev,
1532 cx->usage++; 1594 cx->usage++;
1533 1595
1534 acpi_state_timer_broadcast(pr, cx, 0); 1596 acpi_state_timer_broadcast(pr, cx, 0);
1535 cx->time += ticks_elapsed(t1, t2); 1597 cx->time += sleep_ticks;
1536 return ticks_elapsed_in_us(t1, t2); 1598 return ticks_elapsed_in_us(t1, t2);
1537} 1599}
1538 1600
@@ -1584,12 +1646,14 @@ static int acpi_processor_setup_cpuidle(struct acpi_processor *pr)
1584 case ACPI_STATE_C1: 1646 case ACPI_STATE_C1:
1585 state->flags |= CPUIDLE_FLAG_SHALLOW; 1647 state->flags |= CPUIDLE_FLAG_SHALLOW;
1586 state->enter = acpi_idle_enter_c1; 1648 state->enter = acpi_idle_enter_c1;
1649 dev->safe_state = state;
1587 break; 1650 break;
1588 1651
1589 case ACPI_STATE_C2: 1652 case ACPI_STATE_C2:
1590 state->flags |= CPUIDLE_FLAG_BALANCED; 1653 state->flags |= CPUIDLE_FLAG_BALANCED;
1591 state->flags |= CPUIDLE_FLAG_TIME_VALID; 1654 state->flags |= CPUIDLE_FLAG_TIME_VALID;
1592 state->enter = acpi_idle_enter_simple; 1655 state->enter = acpi_idle_enter_simple;
1656 dev->safe_state = state;
1593 break; 1657 break;
1594 1658
1595 case ACPI_STATE_C3: 1659 case ACPI_STATE_C3:
@@ -1610,14 +1674,6 @@ static int acpi_processor_setup_cpuidle(struct acpi_processor *pr)
1610 if (!count) 1674 if (!count)
1611 return -EINVAL; 1675 return -EINVAL;
1612 1676
1613 /* find the deepest state that can handle active BM */
1614 if (pr->flags.bm_check) {
1615 for (i = 1; i < ACPI_PROCESSOR_MAX_POWER && i <= max_cstate; i++)
1616 if (pr->power.states[i].type == ACPI_STATE_C3)
1617 break;
1618 pr->power.bm_state = &pr->power.states[i-1];
1619 }
1620
1621 return 0; 1677 return 0;
1622} 1678}
1623 1679
@@ -1658,13 +1714,15 @@ int __cpuinit acpi_processor_power_init(struct acpi_processor *pr,
1658 1714
1659 if (!first_run) { 1715 if (!first_run) {
1660 dmi_check_system(processor_power_dmi_table); 1716 dmi_check_system(processor_power_dmi_table);
1717 max_cstate = acpi_processor_cstate_check(max_cstate);
1661 if (max_cstate < ACPI_C_STATES_MAX) 1718 if (max_cstate < ACPI_C_STATES_MAX)
1662 printk(KERN_NOTICE 1719 printk(KERN_NOTICE
1663 "ACPI: processor limited to max C-state %d\n", 1720 "ACPI: processor limited to max C-state %d\n",
1664 max_cstate); 1721 max_cstate);
1665 first_run++; 1722 first_run++;
1666#if !defined (CONFIG_CPU_IDLE) && defined (CONFIG_SMP) 1723#if !defined(CONFIG_CPU_IDLE) && defined(CONFIG_SMP)
1667 register_latency_notifier(&acpi_processor_latency_notifier); 1724 pm_qos_add_notifier(PM_QOS_CPU_DMA_LATENCY,
1725 &acpi_processor_latency_notifier);
1668#endif 1726#endif
1669 } 1727 }
1670 1728
@@ -1751,7 +1809,8 @@ int acpi_processor_power_exit(struct acpi_processor *pr,
1751 */ 1809 */
1752 cpu_idle_wait(); 1810 cpu_idle_wait();
1753#ifdef CONFIG_SMP 1811#ifdef CONFIG_SMP
1754 unregister_latency_notifier(&acpi_processor_latency_notifier); 1812 pm_qos_remove_notifier(PM_QOS_CPU_DMA_LATENCY,
1813 &acpi_processor_latency_notifier);
1755#endif 1814#endif
1756 } 1815 }
1757#endif 1816#endif
diff --git a/drivers/acpi/processor_throttling.c b/drivers/acpi/processor_throttling.c
index 0b8204e7082a..1685b40abda7 100644
--- a/drivers/acpi/processor_throttling.c
+++ b/drivers/acpi/processor_throttling.c
@@ -29,6 +29,7 @@
29#include <linux/kernel.h> 29#include <linux/kernel.h>
30#include <linux/module.h> 30#include <linux/module.h>
31#include <linux/init.h> 31#include <linux/init.h>
32#include <linux/sched.h>
32#include <linux/cpufreq.h> 33#include <linux/cpufreq.h>
33#include <linux/proc_fs.h> 34#include <linux/proc_fs.h>
34#include <linux/seq_file.h> 35#include <linux/seq_file.h>
@@ -70,7 +71,55 @@ static int acpi_processor_get_platform_limit(struct acpi_processor *pr)
70 71
71int acpi_processor_tstate_has_changed(struct acpi_processor *pr) 72int acpi_processor_tstate_has_changed(struct acpi_processor *pr)
72{ 73{
73 return acpi_processor_get_platform_limit(pr); 74 int result = 0;
75 int throttling_limit;
76 int current_state;
77 struct acpi_processor_limit *limit;
78 int target_state;
79
80 result = acpi_processor_get_platform_limit(pr);
81 if (result) {
82 /* Throttling Limit is unsupported */
83 return result;
84 }
85
86 throttling_limit = pr->throttling_platform_limit;
87 if (throttling_limit >= pr->throttling.state_count) {
88 /* Uncorrect Throttling Limit */
89 return -EINVAL;
90 }
91
92 current_state = pr->throttling.state;
93 if (current_state > throttling_limit) {
94 /*
95 * The current state can meet the requirement of
96 * _TPC limit. But it is reasonable that OSPM changes
97 * t-states from high to low for better performance.
98 * Of course the limit condition of thermal
99 * and user should be considered.
100 */
101 limit = &pr->limit;
102 target_state = throttling_limit;
103 if (limit->thermal.tx > target_state)
104 target_state = limit->thermal.tx;
105 if (limit->user.tx > target_state)
106 target_state = limit->user.tx;
107 } else if (current_state == throttling_limit) {
108 /*
109 * Unnecessary to change the throttling state
110 */
111 return 0;
112 } else {
113 /*
114 * If the current state is lower than the limit of _TPC, it
115 * will be forced to switch to the throttling state defined
116 * by throttling_platfor_limit.
117 * Because the previous state meets with the limit condition
118 * of thermal and user, it is unnecessary to check it again.
119 */
120 target_state = throttling_limit;
121 }
122 return acpi_processor_set_throttling(pr, target_state);
74} 123}
75 124
76/* 125/*
@@ -83,6 +132,7 @@ static int acpi_processor_get_throttling_control(struct acpi_processor *pr)
83 struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; 132 struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
84 union acpi_object *ptc = NULL; 133 union acpi_object *ptc = NULL;
85 union acpi_object obj = { 0 }; 134 union acpi_object obj = { 0 };
135 struct acpi_processor_throttling *throttling;
86 136
87 status = acpi_evaluate_object(pr->handle, "_PTC", NULL, &buffer); 137 status = acpi_evaluate_object(pr->handle, "_PTC", NULL, &buffer);
88 if (ACPI_FAILURE(status)) { 138 if (ACPI_FAILURE(status)) {
@@ -134,6 +184,22 @@ static int acpi_processor_get_throttling_control(struct acpi_processor *pr)
134 memcpy(&pr->throttling.status_register, obj.buffer.pointer, 184 memcpy(&pr->throttling.status_register, obj.buffer.pointer,
135 sizeof(struct acpi_ptc_register)); 185 sizeof(struct acpi_ptc_register));
136 186
187 throttling = &pr->throttling;
188
189 if ((throttling->control_register.bit_width +
190 throttling->control_register.bit_offset) > 32) {
191 printk(KERN_ERR PREFIX "Invalid _PTC control register\n");
192 result = -EFAULT;
193 goto end;
194 }
195
196 if ((throttling->status_register.bit_width +
197 throttling->status_register.bit_offset) > 32) {
198 printk(KERN_ERR PREFIX "Invalid _PTC status register\n");
199 result = -EFAULT;
200 goto end;
201 }
202
137 end: 203 end:
138 kfree(buffer.pointer); 204 kfree(buffer.pointer);
139 205
@@ -328,44 +394,132 @@ static int acpi_processor_get_throttling_fadt(struct acpi_processor *pr)
328 return 0; 394 return 0;
329} 395}
330 396
331static int acpi_read_throttling_status(struct acpi_processor_throttling 397#ifdef CONFIG_X86
332 *throttling) 398static int acpi_throttling_rdmsr(struct acpi_processor *pr,
399 acpi_integer * value)
400{
401 struct cpuinfo_x86 *c;
402 u64 msr_high, msr_low;
403 unsigned int cpu;
404 u64 msr = 0;
405 int ret = -1;
406
407 cpu = pr->id;
408 c = &cpu_data(cpu);
409
410 if ((c->x86_vendor != X86_VENDOR_INTEL) ||
411 !cpu_has(c, X86_FEATURE_ACPI)) {
412 printk(KERN_ERR PREFIX
413 "HARDWARE addr space,NOT supported yet\n");
414 } else {
415 msr_low = 0;
416 msr_high = 0;
417 rdmsr_safe(MSR_IA32_THERM_CONTROL,
418 (u32 *)&msr_low , (u32 *) &msr_high);
419 msr = (msr_high << 32) | msr_low;
420 *value = (acpi_integer) msr;
421 ret = 0;
422 }
423 return ret;
424}
425
426static int acpi_throttling_wrmsr(struct acpi_processor *pr, acpi_integer value)
333{ 427{
334 int value = -1; 428 struct cpuinfo_x86 *c;
429 unsigned int cpu;
430 int ret = -1;
431 u64 msr;
432
433 cpu = pr->id;
434 c = &cpu_data(cpu);
435
436 if ((c->x86_vendor != X86_VENDOR_INTEL) ||
437 !cpu_has(c, X86_FEATURE_ACPI)) {
438 printk(KERN_ERR PREFIX
439 "HARDWARE addr space,NOT supported yet\n");
440 } else {
441 msr = value;
442 wrmsr_safe(MSR_IA32_THERM_CONTROL,
443 msr & 0xffffffff, msr >> 32);
444 ret = 0;
445 }
446 return ret;
447}
448#else
449static int acpi_throttling_rdmsr(struct acpi_processor *pr,
450 acpi_integer * value)
451{
452 printk(KERN_ERR PREFIX
453 "HARDWARE addr space,NOT supported yet\n");
454 return -1;
455}
456
457static int acpi_throttling_wrmsr(struct acpi_processor *pr, acpi_integer value)
458{
459 printk(KERN_ERR PREFIX
460 "HARDWARE addr space,NOT supported yet\n");
461 return -1;
462}
463#endif
464
465static int acpi_read_throttling_status(struct acpi_processor *pr,
466 acpi_integer *value)
467{
468 u32 bit_width, bit_offset;
469 u64 ptc_value;
470 u64 ptc_mask;
471 struct acpi_processor_throttling *throttling;
472 int ret = -1;
473
474 throttling = &pr->throttling;
335 switch (throttling->status_register.space_id) { 475 switch (throttling->status_register.space_id) {
336 case ACPI_ADR_SPACE_SYSTEM_IO: 476 case ACPI_ADR_SPACE_SYSTEM_IO:
477 ptc_value = 0;
478 bit_width = throttling->status_register.bit_width;
479 bit_offset = throttling->status_register.bit_offset;
480
337 acpi_os_read_port((acpi_io_address) throttling->status_register. 481 acpi_os_read_port((acpi_io_address) throttling->status_register.
338 address, &value, 482 address, (u32 *) &ptc_value,
339 (u32) throttling->status_register.bit_width * 483 (u32) (bit_width + bit_offset));
340 8); 484 ptc_mask = (1 << bit_width) - 1;
485 *value = (acpi_integer) ((ptc_value >> bit_offset) & ptc_mask);
486 ret = 0;
341 break; 487 break;
342 case ACPI_ADR_SPACE_FIXED_HARDWARE: 488 case ACPI_ADR_SPACE_FIXED_HARDWARE:
343 printk(KERN_ERR PREFIX 489 ret = acpi_throttling_rdmsr(pr, value);
344 "HARDWARE addr space,NOT supported yet\n");
345 break; 490 break;
346 default: 491 default:
347 printk(KERN_ERR PREFIX "Unknown addr space %d\n", 492 printk(KERN_ERR PREFIX "Unknown addr space %d\n",
348 (u32) (throttling->status_register.space_id)); 493 (u32) (throttling->status_register.space_id));
349 } 494 }
350 return value; 495 return ret;
351} 496}
352 497
353static int acpi_write_throttling_state(struct acpi_processor_throttling 498static int acpi_write_throttling_state(struct acpi_processor *pr,
354 *throttling, int value) 499 acpi_integer value)
355{ 500{
501 u32 bit_width, bit_offset;
502 u64 ptc_value;
503 u64 ptc_mask;
504 struct acpi_processor_throttling *throttling;
356 int ret = -1; 505 int ret = -1;
357 506
507 throttling = &pr->throttling;
358 switch (throttling->control_register.space_id) { 508 switch (throttling->control_register.space_id) {
359 case ACPI_ADR_SPACE_SYSTEM_IO: 509 case ACPI_ADR_SPACE_SYSTEM_IO:
510 bit_width = throttling->control_register.bit_width;
511 bit_offset = throttling->control_register.bit_offset;
512 ptc_mask = (1 << bit_width) - 1;
513 ptc_value = value & ptc_mask;
514
360 acpi_os_write_port((acpi_io_address) throttling-> 515 acpi_os_write_port((acpi_io_address) throttling->
361 control_register.address, value, 516 control_register.address,
362 (u32) throttling->control_register. 517 (u32) (ptc_value << bit_offset),
363 bit_width * 8); 518 (u32) (bit_width + bit_offset));
364 ret = 0; 519 ret = 0;
365 break; 520 break;
366 case ACPI_ADR_SPACE_FIXED_HARDWARE: 521 case ACPI_ADR_SPACE_FIXED_HARDWARE:
367 printk(KERN_ERR PREFIX 522 ret = acpi_throttling_wrmsr(pr, value);
368 "HARDWARE addr space,NOT supported yet\n");
369 break; 523 break;
370 default: 524 default:
371 printk(KERN_ERR PREFIX "Unknown addr space %d\n", 525 printk(KERN_ERR PREFIX "Unknown addr space %d\n",
@@ -374,7 +528,8 @@ static int acpi_write_throttling_state(struct acpi_processor_throttling
374 return ret; 528 return ret;
375} 529}
376 530
377static int acpi_get_throttling_state(struct acpi_processor *pr, int value) 531static int acpi_get_throttling_state(struct acpi_processor *pr,
532 acpi_integer value)
378{ 533{
379 int i; 534 int i;
380 535
@@ -390,22 +545,26 @@ static int acpi_get_throttling_state(struct acpi_processor *pr, int value)
390 return i; 545 return i;
391} 546}
392 547
393static int acpi_get_throttling_value(struct acpi_processor *pr, int state) 548static int acpi_get_throttling_value(struct acpi_processor *pr,
549 int state, acpi_integer *value)
394{ 550{
395 int value = -1; 551 int ret = -1;
552
396 if (state >= 0 && state <= pr->throttling.state_count) { 553 if (state >= 0 && state <= pr->throttling.state_count) {
397 struct acpi_processor_tx_tss *tx = 554 struct acpi_processor_tx_tss *tx =
398 (struct acpi_processor_tx_tss *)&(pr->throttling. 555 (struct acpi_processor_tx_tss *)&(pr->throttling.
399 states_tss[state]); 556 states_tss[state]);
400 value = tx->control; 557 *value = tx->control;
558 ret = 0;
401 } 559 }
402 return value; 560 return ret;
403} 561}
404 562
405static int acpi_processor_get_throttling_ptc(struct acpi_processor *pr) 563static int acpi_processor_get_throttling_ptc(struct acpi_processor *pr)
406{ 564{
407 int state = 0; 565 int state = 0;
408 u32 value = 0; 566 int ret;
567 acpi_integer value;
409 568
410 if (!pr) 569 if (!pr)
411 return -EINVAL; 570 return -EINVAL;
@@ -414,20 +573,66 @@ static int acpi_processor_get_throttling_ptc(struct acpi_processor *pr)
414 return -ENODEV; 573 return -ENODEV;
415 574
416 pr->throttling.state = 0; 575 pr->throttling.state = 0;
417 local_irq_disable(); 576
418 value = acpi_read_throttling_status(&pr->throttling); 577 value = 0;
419 if (value >= 0) { 578 ret = acpi_read_throttling_status(pr, &value);
579 if (ret >= 0) {
420 state = acpi_get_throttling_state(pr, value); 580 state = acpi_get_throttling_state(pr, value);
421 pr->throttling.state = state; 581 pr->throttling.state = state;
422 } 582 }
423 local_irq_enable();
424 583
425 return 0; 584 return 0;
426} 585}
427 586
428static int acpi_processor_get_throttling(struct acpi_processor *pr) 587static int acpi_processor_get_throttling(struct acpi_processor *pr)
429{ 588{
430 return pr->throttling.acpi_processor_get_throttling(pr); 589 cpumask_t saved_mask;
590 int ret;
591
592 /*
593 * Migrate task to the cpu pointed by pr.
594 */
595 saved_mask = current->cpus_allowed;
596 set_cpus_allowed(current, cpumask_of_cpu(pr->id));
597 ret = pr->throttling.acpi_processor_get_throttling(pr);
598 /* restore the previous state */
599 set_cpus_allowed(current, saved_mask);
600
601 return ret;
602}
603
604static int acpi_processor_get_fadt_info(struct acpi_processor *pr)
605{
606 int i, step;
607
608 if (!pr->throttling.address) {
609 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "No throttling register\n"));
610 return -EINVAL;
611 } else if (!pr->throttling.duty_width) {
612 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "No throttling states\n"));
613 return -EINVAL;
614 }
615 /* TBD: Support duty_cycle values that span bit 4. */
616 else if ((pr->throttling.duty_offset + pr->throttling.duty_width) > 4) {
617 printk(KERN_WARNING PREFIX "duty_cycle spans bit 4\n");
618 return -EINVAL;
619 }
620
621 pr->throttling.state_count = 1 << acpi_gbl_FADT.duty_width;
622
623 /*
624 * Compute state values. Note that throttling displays a linear power
625 * performance relationship (at 50% performance the CPU will consume
626 * 50% power). Values are in 1/10th of a percent to preserve accuracy.
627 */
628
629 step = (1000 / pr->throttling.state_count);
630
631 for (i = 0; i < pr->throttling.state_count; i++) {
632 pr->throttling.states[i].performance = 1000 - step * i;
633 pr->throttling.states[i].power = 1000 - step * i;
634 }
635 return 0;
431} 636}
432 637
433static int acpi_processor_set_throttling_fadt(struct acpi_processor *pr, 638static int acpi_processor_set_throttling_fadt(struct acpi_processor *pr,
@@ -506,7 +711,8 @@ static int acpi_processor_set_throttling_fadt(struct acpi_processor *pr,
506static int acpi_processor_set_throttling_ptc(struct acpi_processor *pr, 711static int acpi_processor_set_throttling_ptc(struct acpi_processor *pr,
507 int state) 712 int state)
508{ 713{
509 u32 value = 0; 714 int ret;
715 acpi_integer value;
510 716
511 if (!pr) 717 if (!pr)
512 return -EINVAL; 718 return -EINVAL;
@@ -523,28 +729,34 @@ static int acpi_processor_set_throttling_ptc(struct acpi_processor *pr,
523 if (state < pr->throttling_platform_limit) 729 if (state < pr->throttling_platform_limit)
524 return -EPERM; 730 return -EPERM;
525 731
526 local_irq_disable(); 732 value = 0;
527 733 ret = acpi_get_throttling_value(pr, state, &value);
528 value = acpi_get_throttling_value(pr, state); 734 if (ret >= 0) {
529 if (value >= 0) { 735 acpi_write_throttling_state(pr, value);
530 acpi_write_throttling_state(&pr->throttling, value);
531 pr->throttling.state = state; 736 pr->throttling.state = state;
532 } 737 }
533 local_irq_enable();
534 738
535 return 0; 739 return 0;
536} 740}
537 741
538int acpi_processor_set_throttling(struct acpi_processor *pr, int state) 742int acpi_processor_set_throttling(struct acpi_processor *pr, int state)
539{ 743{
540 return pr->throttling.acpi_processor_set_throttling(pr, state); 744 cpumask_t saved_mask;
745 int ret;
746 /*
747 * Migrate task to the cpu pointed by pr.
748 */
749 saved_mask = current->cpus_allowed;
750 set_cpus_allowed(current, cpumask_of_cpu(pr->id));
751 ret = pr->throttling.acpi_processor_set_throttling(pr, state);
752 /* restore the previous state */
753 set_cpus_allowed(current, saved_mask);
754 return ret;
541} 755}
542 756
543int acpi_processor_get_throttling_info(struct acpi_processor *pr) 757int acpi_processor_get_throttling_info(struct acpi_processor *pr)
544{ 758{
545 int result = 0; 759 int result = 0;
546 int step = 0;
547 int i = 0;
548 760
549 ACPI_DEBUG_PRINT((ACPI_DB_INFO, 761 ACPI_DEBUG_PRINT((ACPI_DB_INFO,
550 "pblk_address[0x%08x] duty_offset[%d] duty_width[%d]\n", 762 "pblk_address[0x%08x] duty_offset[%d] duty_width[%d]\n",
@@ -567,6 +779,8 @@ int acpi_processor_get_throttling_info(struct acpi_processor *pr)
567 &acpi_processor_get_throttling_fadt; 779 &acpi_processor_get_throttling_fadt;
568 pr->throttling.acpi_processor_set_throttling = 780 pr->throttling.acpi_processor_set_throttling =
569 &acpi_processor_set_throttling_fadt; 781 &acpi_processor_set_throttling_fadt;
782 if (acpi_processor_get_fadt_info(pr))
783 return 0;
570 } else { 784 } else {
571 pr->throttling.acpi_processor_get_throttling = 785 pr->throttling.acpi_processor_get_throttling =
572 &acpi_processor_get_throttling_ptc; 786 &acpi_processor_get_throttling_ptc;
@@ -576,19 +790,6 @@ int acpi_processor_get_throttling_info(struct acpi_processor *pr)
576 790
577 acpi_processor_get_tsd(pr); 791 acpi_processor_get_tsd(pr);
578 792
579 if (!pr->throttling.address) {
580 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "No throttling register\n"));
581 return 0;
582 } else if (!pr->throttling.duty_width) {
583 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "No throttling states\n"));
584 return 0;
585 }
586 /* TBD: Support duty_cycle values that span bit 4. */
587 else if ((pr->throttling.duty_offset + pr->throttling.duty_width) > 4) {
588 printk(KERN_WARNING PREFIX "duty_cycle spans bit 4\n");
589 return 0;
590 }
591
592 /* 793 /*
593 * PIIX4 Errata: We don't support throttling on the original PIIX4. 794 * PIIX4 Errata: We don't support throttling on the original PIIX4.
594 * This shouldn't be an issue as few (if any) mobile systems ever 795 * This shouldn't be an issue as few (if any) mobile systems ever
@@ -600,21 +801,6 @@ int acpi_processor_get_throttling_info(struct acpi_processor *pr)
600 return 0; 801 return 0;
601 } 802 }
602 803
603 pr->throttling.state_count = 1 << acpi_gbl_FADT.duty_width;
604
605 /*
606 * Compute state values. Note that throttling displays a linear power/
607 * performance relationship (at 50% performance the CPU will consume
608 * 50% power). Values are in 1/10th of a percent to preserve accuracy.
609 */
610
611 step = (1000 / pr->throttling.state_count);
612
613 for (i = 0; i < pr->throttling.state_count; i++) {
614 pr->throttling.states[i].performance = step * i;
615 pr->throttling.states[i].power = step * i;
616 }
617
618 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found %d throttling states\n", 804 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found %d throttling states\n",
619 pr->throttling.state_count)); 805 pr->throttling.state_count));
620 806
diff --git a/drivers/acpi/sbs.c b/drivers/acpi/sbs.c
index 90fd09c65f95..f136c7d3b3c2 100644
--- a/drivers/acpi/sbs.c
+++ b/drivers/acpi/sbs.c
@@ -29,7 +29,7 @@
29#include <linux/moduleparam.h> 29#include <linux/moduleparam.h>
30#include <linux/kernel.h> 30#include <linux/kernel.h>
31 31
32#ifdef CONFIG_ACPI_PROCFS 32#ifdef CONFIG_ACPI_PROCFS_POWER
33#include <linux/proc_fs.h> 33#include <linux/proc_fs.h>
34#include <linux/seq_file.h> 34#include <linux/seq_file.h>
35#include <asm/uaccess.h> 35#include <asm/uaccess.h>
@@ -40,7 +40,9 @@
40#include <linux/jiffies.h> 40#include <linux/jiffies.h>
41#include <linux/delay.h> 41#include <linux/delay.h>
42 42
43#ifdef CONFIG_ACPI_SYSFS_POWER
43#include <linux/power_supply.h> 44#include <linux/power_supply.h>
45#endif
44 46
45#include "sbshc.h" 47#include "sbshc.h"
46 48
@@ -54,12 +56,6 @@
54#define ACPI_BATTERY_DIR_NAME "BAT%i" 56#define ACPI_BATTERY_DIR_NAME "BAT%i"
55#define ACPI_AC_DIR_NAME "AC0" 57#define ACPI_AC_DIR_NAME "AC0"
56 58
57enum acpi_sbs_device_addr {
58 ACPI_SBS_CHARGER = 0x9,
59 ACPI_SBS_MANAGER = 0xa,
60 ACPI_SBS_BATTERY = 0xb,
61};
62
63#define ACPI_SBS_NOTIFY_STATUS 0x80 59#define ACPI_SBS_NOTIFY_STATUS 0x80
64#define ACPI_SBS_NOTIFY_INFO 0x81 60#define ACPI_SBS_NOTIFY_INFO 0x81
65 61
@@ -86,9 +82,11 @@ static const struct acpi_device_id sbs_device_ids[] = {
86MODULE_DEVICE_TABLE(acpi, sbs_device_ids); 82MODULE_DEVICE_TABLE(acpi, sbs_device_ids);
87 83
88struct acpi_battery { 84struct acpi_battery {
85#ifdef CONFIG_ACPI_SYSFS_POWER
89 struct power_supply bat; 86 struct power_supply bat;
87#endif
90 struct acpi_sbs *sbs; 88 struct acpi_sbs *sbs;
91#ifdef CONFIG_ACPI_PROCFS 89#ifdef CONFIG_ACPI_PROCFS_POWER
92 struct proc_dir_entry *proc_entry; 90 struct proc_dir_entry *proc_entry;
93#endif 91#endif
94 unsigned long update_time; 92 unsigned long update_time;
@@ -113,16 +111,19 @@ struct acpi_battery {
113 u16 spec; 111 u16 spec;
114 u8 id; 112 u8 id;
115 u8 present:1; 113 u8 present:1;
114 u8 have_sysfs_alarm:1;
116}; 115};
117 116
118#define to_acpi_battery(x) container_of(x, struct acpi_battery, bat); 117#define to_acpi_battery(x) container_of(x, struct acpi_battery, bat);
119 118
120struct acpi_sbs { 119struct acpi_sbs {
120#ifdef CONFIG_ACPI_SYSFS_POWER
121 struct power_supply charger; 121 struct power_supply charger;
122#endif
122 struct acpi_device *device; 123 struct acpi_device *device;
123 struct acpi_smb_hc *hc; 124 struct acpi_smb_hc *hc;
124 struct mutex lock; 125 struct mutex lock;
125#ifdef CONFIG_ACPI_PROCFS 126#ifdef CONFIG_ACPI_PROCFS_POWER
126 struct proc_dir_entry *charger_entry; 127 struct proc_dir_entry *charger_entry;
127#endif 128#endif
128 struct acpi_battery battery[MAX_SBS_BAT]; 129 struct acpi_battery battery[MAX_SBS_BAT];
@@ -162,6 +163,7 @@ static inline int acpi_battery_scale(struct acpi_battery *battery)
162 acpi_battery_ipscale(battery); 163 acpi_battery_ipscale(battery);
163} 164}
164 165
166#ifdef CONFIG_ACPI_SYSFS_POWER
165static int sbs_get_ac_property(struct power_supply *psy, 167static int sbs_get_ac_property(struct power_supply *psy,
166 enum power_supply_property psp, 168 enum power_supply_property psp,
167 union power_supply_propval *val) 169 union power_supply_propval *val)
@@ -299,6 +301,7 @@ static enum power_supply_property sbs_energy_battery_props[] = {
299 POWER_SUPPLY_PROP_MODEL_NAME, 301 POWER_SUPPLY_PROP_MODEL_NAME,
300 POWER_SUPPLY_PROP_MANUFACTURER, 302 POWER_SUPPLY_PROP_MANUFACTURER,
301}; 303};
304#endif
302 305
303/* -------------------------------------------------------------------------- 306/* --------------------------------------------------------------------------
304 Smart Battery System Management 307 Smart Battery System Management
@@ -434,6 +437,7 @@ static int acpi_ac_get_present(struct acpi_sbs *sbs)
434 return result; 437 return result;
435} 438}
436 439
440#ifdef CONFIG_ACPI_SYSFS_POWER
437static ssize_t acpi_battery_alarm_show(struct device *dev, 441static ssize_t acpi_battery_alarm_show(struct device *dev,
438 struct device_attribute *attr, 442 struct device_attribute *attr,
439 char *buf) 443 char *buf)
@@ -463,12 +467,13 @@ static struct device_attribute alarm_attr = {
463 .show = acpi_battery_alarm_show, 467 .show = acpi_battery_alarm_show,
464 .store = acpi_battery_alarm_store, 468 .store = acpi_battery_alarm_store,
465}; 469};
470#endif
466 471
467/* -------------------------------------------------------------------------- 472/* --------------------------------------------------------------------------
468 FS Interface (/proc/acpi) 473 FS Interface (/proc/acpi)
469 -------------------------------------------------------------------------- */ 474 -------------------------------------------------------------------------- */
470 475
471#ifdef CONFIG_ACPI_PROCFS 476#ifdef CONFIG_ACPI_PROCFS_POWER
472/* Generic Routines */ 477/* Generic Routines */
473static int 478static int
474acpi_sbs_add_fs(struct proc_dir_entry **dir, 479acpi_sbs_add_fs(struct proc_dir_entry **dir,
@@ -538,7 +543,7 @@ static struct proc_dir_entry *acpi_battery_dir = NULL;
538 543
539static inline char *acpi_battery_units(struct acpi_battery *battery) 544static inline char *acpi_battery_units(struct acpi_battery *battery)
540{ 545{
541 return acpi_battery_mode(battery) ? " mWh" : " mAh"; 546 return acpi_battery_mode(battery) ? " mW" : " mA";
542} 547}
543 548
544 549
@@ -555,10 +560,10 @@ static int acpi_battery_read_info(struct seq_file *seq, void *offset)
555 if (!battery->present) 560 if (!battery->present)
556 goto end; 561 goto end;
557 562
558 seq_printf(seq, "design capacity: %i%s\n", 563 seq_printf(seq, "design capacity: %i%sh\n",
559 battery->design_capacity * acpi_battery_scale(battery), 564 battery->design_capacity * acpi_battery_scale(battery),
560 acpi_battery_units(battery)); 565 acpi_battery_units(battery));
561 seq_printf(seq, "last full capacity: %i%s\n", 566 seq_printf(seq, "last full capacity: %i%sh\n",
562 battery->full_charge_capacity * acpi_battery_scale(battery), 567 battery->full_charge_capacity * acpi_battery_scale(battery),
563 acpi_battery_units(battery)); 568 acpi_battery_units(battery));
564 seq_printf(seq, "battery technology: rechargeable\n"); 569 seq_printf(seq, "battery technology: rechargeable\n");
@@ -589,7 +594,7 @@ static int acpi_battery_read_state(struct seq_file *seq, void *offset)
589{ 594{
590 struct acpi_battery *battery = seq->private; 595 struct acpi_battery *battery = seq->private;
591 struct acpi_sbs *sbs = battery->sbs; 596 struct acpi_sbs *sbs = battery->sbs;
592 int result = 0; 597 int rate;
593 598
594 mutex_lock(&sbs->lock); 599 mutex_lock(&sbs->lock);
595 seq_printf(seq, "present: %s\n", 600 seq_printf(seq, "present: %s\n",
@@ -603,9 +608,12 @@ static int acpi_battery_read_state(struct seq_file *seq, void *offset)
603 seq_printf(seq, "charging state: %s\n", 608 seq_printf(seq, "charging state: %s\n",
604 (battery->current_now < 0) ? "discharging" : 609 (battery->current_now < 0) ? "discharging" :
605 ((battery->current_now > 0) ? "charging" : "charged")); 610 ((battery->current_now > 0) ? "charging" : "charged"));
606 seq_printf(seq, "present rate: %d mA\n", 611 rate = abs(battery->current_now) * acpi_battery_ipscale(battery);
607 abs(battery->current_now) * acpi_battery_ipscale(battery)); 612 rate *= (acpi_battery_mode(battery))?(battery->voltage_now *
608 seq_printf(seq, "remaining capacity: %i%s\n", 613 acpi_battery_vscale(battery)/1000):1;
614 seq_printf(seq, "present rate: %d%s\n", rate,
615 acpi_battery_units(battery));
616 seq_printf(seq, "remaining capacity: %i%sh\n",
609 battery->capacity_now * acpi_battery_scale(battery), 617 battery->capacity_now * acpi_battery_scale(battery),
610 acpi_battery_units(battery)); 618 acpi_battery_units(battery));
611 seq_printf(seq, "present voltage: %i mV\n", 619 seq_printf(seq, "present voltage: %i mV\n",
@@ -613,7 +621,7 @@ static int acpi_battery_read_state(struct seq_file *seq, void *offset)
613 621
614 end: 622 end:
615 mutex_unlock(&sbs->lock); 623 mutex_unlock(&sbs->lock);
616 return result; 624 return 0;
617} 625}
618 626
619static int acpi_battery_state_open_fs(struct inode *inode, struct file *file) 627static int acpi_battery_state_open_fs(struct inode *inode, struct file *file)
@@ -637,7 +645,7 @@ static int acpi_battery_read_alarm(struct seq_file *seq, void *offset)
637 acpi_battery_get_alarm(battery); 645 acpi_battery_get_alarm(battery);
638 seq_printf(seq, "alarm: "); 646 seq_printf(seq, "alarm: ");
639 if (battery->alarm_capacity) 647 if (battery->alarm_capacity)
640 seq_printf(seq, "%i%s\n", 648 seq_printf(seq, "%i%sh\n",
641 battery->alarm_capacity * 649 battery->alarm_capacity *
642 acpi_battery_scale(battery), 650 acpi_battery_scale(battery),
643 acpi_battery_units(battery)); 651 acpi_battery_units(battery));
@@ -789,12 +797,13 @@ static int acpi_battery_add(struct acpi_sbs *sbs, int id)
789 return result; 797 return result;
790 798
791 sprintf(battery->name, ACPI_BATTERY_DIR_NAME, id); 799 sprintf(battery->name, ACPI_BATTERY_DIR_NAME, id);
792#ifdef CONFIG_ACPI_PROCFS 800#ifdef CONFIG_ACPI_PROCFS_POWER
793 acpi_sbs_add_fs(&battery->proc_entry, acpi_battery_dir, 801 acpi_sbs_add_fs(&battery->proc_entry, acpi_battery_dir,
794 battery->name, &acpi_battery_info_fops, 802 battery->name, &acpi_battery_info_fops,
795 &acpi_battery_state_fops, &acpi_battery_alarm_fops, 803 &acpi_battery_state_fops, &acpi_battery_alarm_fops,
796 battery); 804 battery);
797#endif 805#endif
806#ifdef CONFIG_ACPI_SYSFS_POWER
798 battery->bat.name = battery->name; 807 battery->bat.name = battery->name;
799 battery->bat.type = POWER_SUPPLY_TYPE_BATTERY; 808 battery->bat.type = POWER_SUPPLY_TYPE_BATTERY;
800 if (!acpi_battery_mode(battery)) { 809 if (!acpi_battery_mode(battery)) {
@@ -808,7 +817,14 @@ static int acpi_battery_add(struct acpi_sbs *sbs, int id)
808 } 817 }
809 battery->bat.get_property = acpi_sbs_battery_get_property; 818 battery->bat.get_property = acpi_sbs_battery_get_property;
810 result = power_supply_register(&sbs->device->dev, &battery->bat); 819 result = power_supply_register(&sbs->device->dev, &battery->bat);
811 device_create_file(battery->bat.dev, &alarm_attr); 820 if (result)
821 goto end;
822 result = device_create_file(battery->bat.dev, &alarm_attr);
823 if (result)
824 goto end;
825 battery->have_sysfs_alarm = 1;
826 end:
827#endif
812 printk(KERN_INFO PREFIX "%s [%s]: Battery Slot [%s] (battery %s)\n", 828 printk(KERN_INFO PREFIX "%s [%s]: Battery Slot [%s] (battery %s)\n",
813 ACPI_SBS_DEVICE_NAME, acpi_device_bid(sbs->device), 829 ACPI_SBS_DEVICE_NAME, acpi_device_bid(sbs->device),
814 battery->name, sbs->battery->present ? "present" : "absent"); 830 battery->name, sbs->battery->present ? "present" : "absent");
@@ -817,15 +833,18 @@ static int acpi_battery_add(struct acpi_sbs *sbs, int id)
817 833
818static void acpi_battery_remove(struct acpi_sbs *sbs, int id) 834static void acpi_battery_remove(struct acpi_sbs *sbs, int id)
819{ 835{
820 if (sbs->battery[id].bat.dev) 836 struct acpi_battery *battery = &sbs->battery[id];
821 device_remove_file(sbs->battery[id].bat.dev, &alarm_attr); 837#ifdef CONFIG_ACPI_SYSFS_POWER
822 power_supply_unregister(&sbs->battery[id].bat); 838 if (battery->bat.dev) {
823#ifdef CONFIG_ACPI_PROCFS 839 if (battery->have_sysfs_alarm)
824 if (sbs->battery[id].proc_entry) { 840 device_remove_file(battery->bat.dev, &alarm_attr);
825 acpi_sbs_remove_fs(&(sbs->battery[id].proc_entry), 841 power_supply_unregister(&battery->bat);
826 acpi_battery_dir);
827 } 842 }
828#endif 843#endif
844#ifdef CONFIG_ACPI_PROCFS_POWER
845 if (battery->proc_entry)
846 acpi_sbs_remove_fs(&battery->proc_entry, acpi_battery_dir);
847#endif
829} 848}
830 849
831static int acpi_charger_add(struct acpi_sbs *sbs) 850static int acpi_charger_add(struct acpi_sbs *sbs)
@@ -835,19 +854,21 @@ static int acpi_charger_add(struct acpi_sbs *sbs)
835 result = acpi_ac_get_present(sbs); 854 result = acpi_ac_get_present(sbs);
836 if (result) 855 if (result)
837 goto end; 856 goto end;
838#ifdef CONFIG_ACPI_PROCFS 857#ifdef CONFIG_ACPI_PROCFS_POWER
839 result = acpi_sbs_add_fs(&sbs->charger_entry, acpi_ac_dir, 858 result = acpi_sbs_add_fs(&sbs->charger_entry, acpi_ac_dir,
840 ACPI_AC_DIR_NAME, NULL, 859 ACPI_AC_DIR_NAME, NULL,
841 &acpi_ac_state_fops, NULL, sbs); 860 &acpi_ac_state_fops, NULL, sbs);
842 if (result) 861 if (result)
843 goto end; 862 goto end;
844#endif 863#endif
864#ifdef CONFIG_ACPI_SYSFS_POWER
845 sbs->charger.name = "sbs-charger"; 865 sbs->charger.name = "sbs-charger";
846 sbs->charger.type = POWER_SUPPLY_TYPE_MAINS; 866 sbs->charger.type = POWER_SUPPLY_TYPE_MAINS;
847 sbs->charger.properties = sbs_ac_props; 867 sbs->charger.properties = sbs_ac_props;
848 sbs->charger.num_properties = ARRAY_SIZE(sbs_ac_props); 868 sbs->charger.num_properties = ARRAY_SIZE(sbs_ac_props);
849 sbs->charger.get_property = sbs_get_ac_property; 869 sbs->charger.get_property = sbs_get_ac_property;
850 power_supply_register(&sbs->device->dev, &sbs->charger); 870 power_supply_register(&sbs->device->dev, &sbs->charger);
871#endif
851 printk(KERN_INFO PREFIX "%s [%s]: AC Adapter [%s] (%s)\n", 872 printk(KERN_INFO PREFIX "%s [%s]: AC Adapter [%s] (%s)\n",
852 ACPI_SBS_DEVICE_NAME, acpi_device_bid(sbs->device), 873 ACPI_SBS_DEVICE_NAME, acpi_device_bid(sbs->device),
853 ACPI_AC_DIR_NAME, sbs->charger_present ? "on-line" : "off-line"); 874 ACPI_AC_DIR_NAME, sbs->charger_present ? "on-line" : "off-line");
@@ -857,9 +878,11 @@ static int acpi_charger_add(struct acpi_sbs *sbs)
857 878
858static void acpi_charger_remove(struct acpi_sbs *sbs) 879static void acpi_charger_remove(struct acpi_sbs *sbs)
859{ 880{
881#ifdef CONFIG_ACPI_SYSFS_POWER
860 if (sbs->charger.dev) 882 if (sbs->charger.dev)
861 power_supply_unregister(&sbs->charger); 883 power_supply_unregister(&sbs->charger);
862#ifdef CONFIG_ACPI_PROCFS 884#endif
885#ifdef CONFIG_ACPI_PROCFS_POWER
863 if (sbs->charger_entry) 886 if (sbs->charger_entry)
864 acpi_sbs_remove_fs(&sbs->charger_entry, acpi_ac_dir); 887 acpi_sbs_remove_fs(&sbs->charger_entry, acpi_ac_dir);
865#endif 888#endif
@@ -879,7 +902,9 @@ void acpi_sbs_callback(void *context)
879 ACPI_SBS_NOTIFY_STATUS, 902 ACPI_SBS_NOTIFY_STATUS,
880 sbs->charger_present); 903 sbs->charger_present);
881#endif 904#endif
905#ifdef CONFIG_ACPI_SYSFS_POWER
882 kobject_uevent(&sbs->charger.dev->kobj, KOBJ_CHANGE); 906 kobject_uevent(&sbs->charger.dev->kobj, KOBJ_CHANGE);
907#endif
883 } 908 }
884 if (sbs->manager_present) { 909 if (sbs->manager_present) {
885 for (id = 0; id < MAX_SBS_BAT; ++id) { 910 for (id = 0; id < MAX_SBS_BAT; ++id) {
@@ -896,7 +921,9 @@ void acpi_sbs_callback(void *context)
896 ACPI_SBS_NOTIFY_STATUS, 921 ACPI_SBS_NOTIFY_STATUS,
897 bat->present); 922 bat->present);
898#endif 923#endif
924#ifdef CONFIG_ACPI_SYSFS_POWER
899 kobject_uevent(&bat->bat.dev->kobj, KOBJ_CHANGE); 925 kobject_uevent(&bat->bat.dev->kobj, KOBJ_CHANGE);
926#endif
900 } 927 }
901 } 928 }
902} 929}
@@ -965,7 +992,7 @@ static int acpi_sbs_remove(struct acpi_device *device, int type)
965 992
966static void acpi_sbs_rmdirs(void) 993static void acpi_sbs_rmdirs(void)
967{ 994{
968#ifdef CONFIG_ACPI_PROCFS 995#ifdef CONFIG_ACPI_PROCFS_POWER
969 if (acpi_ac_dir) { 996 if (acpi_ac_dir) {
970 acpi_unlock_ac_dir(acpi_ac_dir); 997 acpi_unlock_ac_dir(acpi_ac_dir);
971 acpi_ac_dir = NULL; 998 acpi_ac_dir = NULL;
@@ -1004,7 +1031,7 @@ static int __init acpi_sbs_init(void)
1004 1031
1005 if (acpi_disabled) 1032 if (acpi_disabled)
1006 return -ENODEV; 1033 return -ENODEV;
1007#ifdef CONFIG_ACPI_PROCFS 1034#ifdef CONFIG_ACPI_PROCFS_POWER
1008 acpi_ac_dir = acpi_lock_ac_dir(); 1035 acpi_ac_dir = acpi_lock_ac_dir();
1009 if (!acpi_ac_dir) 1036 if (!acpi_ac_dir)
1010 return -ENODEV; 1037 return -ENODEV;
diff --git a/drivers/acpi/sbshc.c b/drivers/acpi/sbshc.c
index 046d7c3ed356..fd40b6a1d639 100644
--- a/drivers/acpi/sbshc.c
+++ b/drivers/acpi/sbshc.c
@@ -202,10 +202,9 @@ int acpi_smbus_unregister_callback(struct acpi_smb_hc *hc)
202 202
203EXPORT_SYMBOL_GPL(acpi_smbus_unregister_callback); 203EXPORT_SYMBOL_GPL(acpi_smbus_unregister_callback);
204 204
205static void acpi_smbus_callback(void *context) 205static inline void acpi_smbus_callback(void *context)
206{ 206{
207 struct acpi_smb_hc *hc = context; 207 struct acpi_smb_hc *hc = context;
208
209 if (hc->callback) 208 if (hc->callback)
210 hc->callback(hc->context); 209 hc->callback(hc->context);
211} 210}
@@ -214,6 +213,7 @@ static int smbus_alarm(void *context)
214{ 213{
215 struct acpi_smb_hc *hc = context; 214 struct acpi_smb_hc *hc = context;
216 union acpi_smb_status status; 215 union acpi_smb_status status;
216 u8 address;
217 if (smb_hc_read(hc, ACPI_SMB_STATUS, &status.raw)) 217 if (smb_hc_read(hc, ACPI_SMB_STATUS, &status.raw))
218 return 0; 218 return 0;
219 /* Check if it is only a completion notify */ 219 /* Check if it is only a completion notify */
@@ -222,9 +222,18 @@ static int smbus_alarm(void *context)
222 if (!status.fields.alarm) 222 if (!status.fields.alarm)
223 return 0; 223 return 0;
224 mutex_lock(&hc->lock); 224 mutex_lock(&hc->lock);
225 smb_hc_read(hc, ACPI_SMB_ALARM_ADDRESS, &address);
226 status.fields.alarm = 0;
225 smb_hc_write(hc, ACPI_SMB_STATUS, status.raw); 227 smb_hc_write(hc, ACPI_SMB_STATUS, status.raw);
226 if (hc->callback) 228 /* We are only interested in events coming from known devices */
227 acpi_os_execute(OSL_GPE_HANDLER, acpi_smbus_callback, hc); 229 switch (address >> 1) {
230 case ACPI_SBS_CHARGER:
231 case ACPI_SBS_MANAGER:
232 case ACPI_SBS_BATTERY:
233 acpi_os_execute(OSL_GPE_HANDLER,
234 acpi_smbus_callback, hc);
235 default:;
236 }
228 mutex_unlock(&hc->lock); 237 mutex_unlock(&hc->lock);
229 return 0; 238 return 0;
230} 239}
diff --git a/drivers/acpi/sbshc.h b/drivers/acpi/sbshc.h
index 3bda3491a97b..a57b0762dd7f 100644
--- a/drivers/acpi/sbshc.h
+++ b/drivers/acpi/sbshc.h
@@ -16,6 +16,12 @@ enum acpi_smb_protocol {
16 16
17static const u8 SMBUS_PEC = 0x80; 17static const u8 SMBUS_PEC = 0x80;
18 18
19enum acpi_sbs_device_addr {
20 ACPI_SBS_CHARGER = 0x9,
21 ACPI_SBS_MANAGER = 0xa,
22 ACPI_SBS_BATTERY = 0xb,
23};
24
19typedef void (*smbus_alarm_callback)(void *context); 25typedef void (*smbus_alarm_callback)(void *context);
20 26
21extern int acpi_smbus_read(struct acpi_smb_hc *hc, u8 protocol, u8 address, 27extern int acpi_smbus_read(struct acpi_smb_hc *hc, u8 protocol, u8 address,
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 5b4d462117cf..c7b0aa52dd23 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -830,7 +830,7 @@ static int acpi_bus_get_flags(struct acpi_device *device)
830 if (ACPI_SUCCESS(status)) 830 if (ACPI_SUCCESS(status))
831 device->flags.wake_capable = 1; 831 device->flags.wake_capable = 1;
832 832
833 /* TBD: Peformance management */ 833 /* TBD: Performance management */
834 834
835 return 0; 835 return 0;
836} 836}
@@ -941,6 +941,15 @@ static int acpi_bay_match(struct acpi_device *device){
941 return -ENODEV; 941 return -ENODEV;
942} 942}
943 943
944/*
945 * acpi_dock_match - see if a device has a _DCK method
946 */
947static int acpi_dock_match(struct acpi_device *device)
948{
949 acpi_handle tmp;
950 return acpi_get_handle(device->handle, "_DCK", &tmp);
951}
952
944static void acpi_device_set_id(struct acpi_device *device, 953static void acpi_device_set_id(struct acpi_device *device,
945 struct acpi_device *parent, acpi_handle handle, 954 struct acpi_device *parent, acpi_handle handle,
946 int type) 955 int type)
@@ -950,6 +959,7 @@ static void acpi_device_set_id(struct acpi_device *device,
950 char *hid = NULL; 959 char *hid = NULL;
951 char *uid = NULL; 960 char *uid = NULL;
952 struct acpi_compatible_id_list *cid_list = NULL; 961 struct acpi_compatible_id_list *cid_list = NULL;
962 const char *cid_add = NULL;
953 acpi_status status; 963 acpi_status status;
954 964
955 switch (type) { 965 switch (type) {
@@ -972,15 +982,18 @@ static void acpi_device_set_id(struct acpi_device *device,
972 device->flags.bus_address = 1; 982 device->flags.bus_address = 1;
973 } 983 }
974 984
975 if(!(info->valid & (ACPI_VALID_HID | ACPI_VALID_CID))){ 985 /* If we have a video/bay/dock device, add our selfdefined
976 status = acpi_video_bus_match(device); 986 HID to the CID list. Like that the video/bay/dock drivers
977 if(ACPI_SUCCESS(status)) 987 will get autoloaded and the device might still match
978 hid = ACPI_VIDEO_HID; 988 against another driver.
989 */
990 if (ACPI_SUCCESS(acpi_video_bus_match(device)))
991 cid_add = ACPI_VIDEO_HID;
992 else if (ACPI_SUCCESS(acpi_bay_match(device)))
993 cid_add = ACPI_BAY_HID;
994 else if (ACPI_SUCCESS(acpi_dock_match(device)))
995 cid_add = ACPI_DOCK_HID;
979 996
980 status = acpi_bay_match(device);
981 if (ACPI_SUCCESS(status))
982 hid = ACPI_BAY_HID;
983 }
984 break; 997 break;
985 case ACPI_BUS_TYPE_POWER: 998 case ACPI_BUS_TYPE_POWER:
986 hid = ACPI_POWER_HID; 999 hid = ACPI_POWER_HID;
@@ -1021,11 +1034,44 @@ static void acpi_device_set_id(struct acpi_device *device,
1021 strcpy(device->pnp.unique_id, uid); 1034 strcpy(device->pnp.unique_id, uid);
1022 device->flags.unique_id = 1; 1035 device->flags.unique_id = 1;
1023 } 1036 }
1024 if (cid_list) { 1037 if (cid_list || cid_add) {
1025 device->pnp.cid_list = kmalloc(cid_list->size, GFP_KERNEL); 1038 struct acpi_compatible_id_list *list;
1026 if (device->pnp.cid_list) 1039 int size = 0;
1027 memcpy(device->pnp.cid_list, cid_list, cid_list->size); 1040 int count = 0;
1028 else 1041
1042 if (cid_list) {
1043 size = cid_list->size;
1044 } else if (cid_add) {
1045 size = sizeof(struct acpi_compatible_id_list);
1046 cid_list = ACPI_ALLOCATE_ZEROED((acpi_size) size);
1047 if (!cid_list) {
1048 printk(KERN_ERR "Memory allocation error\n");
1049 kfree(buffer.pointer);
1050 return;
1051 } else {
1052 cid_list->count = 0;
1053 cid_list->size = size;
1054 }
1055 }
1056 if (cid_add)
1057 size += sizeof(struct acpi_compatible_id);
1058 list = kmalloc(size, GFP_KERNEL);
1059
1060 if (list) {
1061 if (cid_list) {
1062 memcpy(list, cid_list, cid_list->size);
1063 count = cid_list->count;
1064 }
1065 if (cid_add) {
1066 strncpy(list->id[count].value, cid_add,
1067 ACPI_MAX_CID_LENGTH);
1068 count++;
1069 device->flags.compatible_ids = 1;
1070 }
1071 list->size = size;
1072 list->count = count;
1073 device->pnp.cid_list = list;
1074 } else
1029 printk(KERN_ERR "Memory allocation error\n"); 1075 printk(KERN_ERR "Memory allocation error\n");
1030 } 1076 }
1031 1077
@@ -1081,6 +1127,20 @@ static int acpi_bus_remove(struct acpi_device *dev, int rmdevice)
1081} 1127}
1082 1128
1083static int 1129static int
1130acpi_is_child_device(struct acpi_device *device,
1131 int (*matcher)(struct acpi_device *))
1132{
1133 int result = -ENODEV;
1134
1135 do {
1136 if (ACPI_SUCCESS(matcher(device)))
1137 return AE_OK;
1138 } while ((device = device->parent));
1139
1140 return result;
1141}
1142
1143static int
1084acpi_add_single_object(struct acpi_device **child, 1144acpi_add_single_object(struct acpi_device **child,
1085 struct acpi_device *parent, acpi_handle handle, int type, 1145 struct acpi_device *parent, acpi_handle handle, int type,
1086 struct acpi_bus_ops *ops) 1146 struct acpi_bus_ops *ops)
@@ -1131,10 +1191,20 @@ acpi_add_single_object(struct acpi_device **child,
1131 case ACPI_BUS_TYPE_PROCESSOR: 1191 case ACPI_BUS_TYPE_PROCESSOR:
1132 case ACPI_BUS_TYPE_DEVICE: 1192 case ACPI_BUS_TYPE_DEVICE:
1133 result = acpi_bus_get_status(device); 1193 result = acpi_bus_get_status(device);
1134 if (ACPI_FAILURE(result) || !device->status.present) { 1194 if (ACPI_FAILURE(result)) {
1135 result = -ENOENT; 1195 result = -ENODEV;
1136 goto end; 1196 goto end;
1137 } 1197 }
1198 if (!device->status.present) {
1199 /* Bay and dock should be handled even if absent */
1200 if (!ACPI_SUCCESS(
1201 acpi_is_child_device(device, acpi_bay_match)) &&
1202 !ACPI_SUCCESS(
1203 acpi_is_child_device(device, acpi_dock_match))) {
1204 result = -ENODEV;
1205 goto end;
1206 }
1207 }
1138 break; 1208 break;
1139 default: 1209 default:
1140 STRUCT_TO_INT(device->status) = 1210 STRUCT_TO_INT(device->status) =
@@ -1449,6 +1519,8 @@ static int acpi_bus_scan_fixed(struct acpi_device *root)
1449 return result; 1519 return result;
1450} 1520}
1451 1521
1522int __init acpi_boot_ec_enable(void);
1523
1452static int __init acpi_scan_init(void) 1524static int __init acpi_scan_init(void)
1453{ 1525{
1454 int result; 1526 int result;
@@ -1480,6 +1552,10 @@ static int __init acpi_scan_init(void)
1480 * Enumerate devices in the ACPI namespace. 1552 * Enumerate devices in the ACPI namespace.
1481 */ 1553 */
1482 result = acpi_bus_scan_fixed(acpi_root); 1554 result = acpi_bus_scan_fixed(acpi_root);
1555
1556 /* EC region might be needed at bus_scan, so enable it now */
1557 acpi_boot_ec_enable();
1558
1483 if (!result) 1559 if (!result)
1484 result = acpi_bus_scan(acpi_root, &ops); 1560 result = acpi_bus_scan(acpi_root, &ops);
1485 1561
diff --git a/drivers/acpi/sleep/main.c b/drivers/acpi/sleep/main.c
index 2c0b6630f8ba..7f97e32fc33f 100644
--- a/drivers/acpi/sleep/main.c
+++ b/drivers/acpi/sleep/main.c
@@ -26,9 +26,24 @@ u8 sleep_states[ACPI_S_STATE_COUNT];
26 26
27#ifdef CONFIG_PM_SLEEP 27#ifdef CONFIG_PM_SLEEP
28static u32 acpi_target_sleep_state = ACPI_STATE_S0; 28static u32 acpi_target_sleep_state = ACPI_STATE_S0;
29static bool acpi_sleep_finish_wake_up;
30
31/*
32 * ACPI 2.0 and later want us to execute _PTS after suspending devices, so we
33 * allow the user to request that behavior by using the 'acpi_new_pts_ordering'
34 * kernel command line option that causes the following variable to be set.
35 */
36static bool new_pts_ordering;
37
38static int __init acpi_new_pts_ordering(char *str)
39{
40 new_pts_ordering = true;
41 return 1;
42}
43__setup("acpi_new_pts_ordering", acpi_new_pts_ordering);
29#endif 44#endif
30 45
31int acpi_sleep_prepare(u32 acpi_state) 46static int acpi_sleep_prepare(u32 acpi_state)
32{ 47{
33#ifdef CONFIG_ACPI_SLEEP 48#ifdef CONFIG_ACPI_SLEEP
34 /* do we have a wakeup address for S2 and S3? */ 49 /* do we have a wakeup address for S2 and S3? */
@@ -44,6 +59,8 @@ int acpi_sleep_prepare(u32 acpi_state)
44 ACPI_FLUSH_CPU_CACHE(); 59 ACPI_FLUSH_CPU_CACHE();
45 acpi_enable_wakeup_device_prep(acpi_state); 60 acpi_enable_wakeup_device_prep(acpi_state);
46#endif 61#endif
62 printk(KERN_INFO PREFIX "Preparing to enter system sleep state S%d\n",
63 acpi_state);
47 acpi_enter_sleep_state_prep(acpi_state); 64 acpi_enter_sleep_state_prep(acpi_state);
48 return 0; 65 return 0;
49} 66}
@@ -63,17 +80,25 @@ static u32 acpi_suspend_states[] = {
63static int init_8259A_after_S1; 80static int init_8259A_after_S1;
64 81
65/** 82/**
66 * acpi_pm_set_target - Set the target system sleep state to the state 83 * acpi_pm_begin - Set the target system sleep state to the state
67 * associated with given @pm_state, if supported. 84 * associated with given @pm_state, if supported.
68 */ 85 */
69 86
70static int acpi_pm_set_target(suspend_state_t pm_state) 87static int acpi_pm_begin(suspend_state_t pm_state)
71{ 88{
72 u32 acpi_state = acpi_suspend_states[pm_state]; 89 u32 acpi_state = acpi_suspend_states[pm_state];
73 int error = 0; 90 int error = 0;
74 91
75 if (sleep_states[acpi_state]) { 92 if (sleep_states[acpi_state]) {
76 acpi_target_sleep_state = acpi_state; 93 acpi_target_sleep_state = acpi_state;
94 if (new_pts_ordering)
95 return 0;
96
97 error = acpi_sleep_prepare(acpi_state);
98 if (error)
99 acpi_target_sleep_state = ACPI_STATE_S0;
100 else
101 acpi_sleep_finish_wake_up = true;
77 } else { 102 } else {
78 printk(KERN_ERR "ACPI does not support this state: %d\n", 103 printk(KERN_ERR "ACPI does not support this state: %d\n",
79 pm_state); 104 pm_state);
@@ -91,12 +116,17 @@ static int acpi_pm_set_target(suspend_state_t pm_state)
91 116
92static int acpi_pm_prepare(void) 117static int acpi_pm_prepare(void)
93{ 118{
94 int error = acpi_sleep_prepare(acpi_target_sleep_state); 119 if (new_pts_ordering) {
120 int error = acpi_sleep_prepare(acpi_target_sleep_state);
95 121
96 if (error) 122 if (error) {
97 acpi_target_sleep_state = ACPI_STATE_S0; 123 acpi_target_sleep_state = ACPI_STATE_S0;
124 return error;
125 }
126 acpi_sleep_finish_wake_up = true;
127 }
98 128
99 return error; 129 return ACPI_SUCCESS(acpi_hw_disable_all_gpes()) ? 0 : -EFAULT;
100} 130}
101 131
102/** 132/**
@@ -120,10 +150,8 @@ static int acpi_pm_enter(suspend_state_t pm_state)
120 if (acpi_state == ACPI_STATE_S3) { 150 if (acpi_state == ACPI_STATE_S3) {
121 int error = acpi_save_state_mem(); 151 int error = acpi_save_state_mem();
122 152
123 if (error) { 153 if (error)
124 acpi_target_sleep_state = ACPI_STATE_S0;
125 return error; 154 return error;
126 }
127 } 155 }
128 156
129 local_irq_save(flags); 157 local_irq_save(flags);
@@ -139,6 +167,9 @@ static int acpi_pm_enter(suspend_state_t pm_state)
139 break; 167 break;
140 } 168 }
141 169
170 /* Reprogram control registers and execute _BFS */
171 acpi_leave_sleep_state_prep(acpi_state);
172
142 /* ACPI 3.0 specs (P62) says that it's the responsabilty 173 /* ACPI 3.0 specs (P62) says that it's the responsabilty
143 * of the OSPM to clear the status bit [ implying that the 174 * of the OSPM to clear the status bit [ implying that the
144 * POWER_BUTTON event should not reach userspace ] 175 * POWER_BUTTON event should not reach userspace ]
@@ -146,6 +177,13 @@ static int acpi_pm_enter(suspend_state_t pm_state)
146 if (ACPI_SUCCESS(status) && (acpi_state == ACPI_STATE_S3)) 177 if (ACPI_SUCCESS(status) && (acpi_state == ACPI_STATE_S3))
147 acpi_clear_event(ACPI_EVENT_POWER_BUTTON); 178 acpi_clear_event(ACPI_EVENT_POWER_BUTTON);
148 179
180 /*
181 * Disable and clear GPE status before interrupt is enabled. Some GPEs
182 * (like wakeup GPE) haven't handler, this can avoid such GPE misfire.
183 * acpi_leave_sleep_state will reenable specific GPEs later
184 */
185 acpi_hw_disable_all_gpes();
186
149 local_irq_restore(flags); 187 local_irq_restore(flags);
150 printk(KERN_DEBUG "Back to C!\n"); 188 printk(KERN_DEBUG "Back to C!\n");
151 189
@@ -157,7 +195,7 @@ static int acpi_pm_enter(suspend_state_t pm_state)
157} 195}
158 196
159/** 197/**
160 * acpi_pm_finish - Finish up suspend sequence. 198 * acpi_pm_finish - Instruct the platform to leave a sleep state.
161 * 199 *
162 * This is called after we wake back up (or if entering the sleep state 200 * This is called after we wake back up (or if entering the sleep state
163 * failed). 201 * failed).
@@ -174,6 +212,7 @@ static void acpi_pm_finish(void)
174 acpi_set_firmware_waking_vector((acpi_physical_address) 0); 212 acpi_set_firmware_waking_vector((acpi_physical_address) 0);
175 213
176 acpi_target_sleep_state = ACPI_STATE_S0; 214 acpi_target_sleep_state = ACPI_STATE_S0;
215 acpi_sleep_finish_wake_up = false;
177 216
178#ifdef CONFIG_X86 217#ifdef CONFIG_X86
179 if (init_8259A_after_S1) { 218 if (init_8259A_after_S1) {
@@ -183,6 +222,20 @@ static void acpi_pm_finish(void)
183#endif 222#endif
184} 223}
185 224
225/**
226 * acpi_pm_end - Finish up suspend sequence.
227 */
228
229static void acpi_pm_end(void)
230{
231 /*
232 * This is necessary in case acpi_pm_finish() is not called directly
233 * during a failing transition to a sleep state.
234 */
235 if (acpi_sleep_finish_wake_up)
236 acpi_pm_finish();
237}
238
186static int acpi_pm_state_valid(suspend_state_t pm_state) 239static int acpi_pm_state_valid(suspend_state_t pm_state)
187{ 240{
188 u32 acpi_state; 241 u32 acpi_state;
@@ -201,10 +254,11 @@ static int acpi_pm_state_valid(suspend_state_t pm_state)
201 254
202static struct platform_suspend_ops acpi_pm_ops = { 255static struct platform_suspend_ops acpi_pm_ops = {
203 .valid = acpi_pm_state_valid, 256 .valid = acpi_pm_state_valid,
204 .set_target = acpi_pm_set_target, 257 .begin = acpi_pm_begin,
205 .prepare = acpi_pm_prepare, 258 .prepare = acpi_pm_prepare,
206 .enter = acpi_pm_enter, 259 .enter = acpi_pm_enter,
207 .finish = acpi_pm_finish, 260 .finish = acpi_pm_finish,
261 .end = acpi_pm_end,
208}; 262};
209 263
210/* 264/*
@@ -229,15 +283,36 @@ static struct dmi_system_id __initdata acpisleep_dmi_table[] = {
229#endif /* CONFIG_SUSPEND */ 283#endif /* CONFIG_SUSPEND */
230 284
231#ifdef CONFIG_HIBERNATION 285#ifdef CONFIG_HIBERNATION
232static int acpi_hibernation_start(void) 286static int acpi_hibernation_begin(void)
233{ 287{
288 int error;
289
234 acpi_target_sleep_state = ACPI_STATE_S4; 290 acpi_target_sleep_state = ACPI_STATE_S4;
235 return 0; 291 if (new_pts_ordering)
292 return 0;
293
294 error = acpi_sleep_prepare(ACPI_STATE_S4);
295 if (error)
296 acpi_target_sleep_state = ACPI_STATE_S0;
297 else
298 acpi_sleep_finish_wake_up = true;
299
300 return error;
236} 301}
237 302
238static int acpi_hibernation_prepare(void) 303static int acpi_hibernation_prepare(void)
239{ 304{
240 return acpi_sleep_prepare(ACPI_STATE_S4); 305 if (new_pts_ordering) {
306 int error = acpi_sleep_prepare(ACPI_STATE_S4);
307
308 if (error) {
309 acpi_target_sleep_state = ACPI_STATE_S0;
310 return error;
311 }
312 acpi_sleep_finish_wake_up = true;
313 }
314
315 return ACPI_SUCCESS(acpi_hw_disable_all_gpes()) ? 0 : -EFAULT;
241} 316}
242 317
243static int acpi_hibernation_enter(void) 318static int acpi_hibernation_enter(void)
@@ -251,6 +326,8 @@ static int acpi_hibernation_enter(void)
251 acpi_enable_wakeup_device(ACPI_STATE_S4); 326 acpi_enable_wakeup_device(ACPI_STATE_S4);
252 /* This shouldn't return. If it returns, we have a problem */ 327 /* This shouldn't return. If it returns, we have a problem */
253 status = acpi_enter_sleep_state(ACPI_STATE_S4); 328 status = acpi_enter_sleep_state(ACPI_STATE_S4);
329 /* Reprogram control registers and execute _BFS */
330 acpi_leave_sleep_state_prep(ACPI_STATE_S4);
254 local_irq_restore(flags); 331 local_irq_restore(flags);
255 332
256 return ACPI_SUCCESS(status) ? 0 : -EFAULT; 333 return ACPI_SUCCESS(status) ? 0 : -EFAULT;
@@ -263,15 +340,12 @@ static void acpi_hibernation_leave(void)
263 * enable it here. 340 * enable it here.
264 */ 341 */
265 acpi_enable(); 342 acpi_enable();
343 /* Reprogram control registers and execute _BFS */
344 acpi_leave_sleep_state_prep(ACPI_STATE_S4);
266} 345}
267 346
268static void acpi_hibernation_finish(void) 347static void acpi_hibernation_finish(void)
269{ 348{
270 /*
271 * If ACPI is not enabled by the BIOS and the boot kernel, we need to
272 * enable it here.
273 */
274 acpi_enable();
275 acpi_disable_wakeup_device(ACPI_STATE_S4); 349 acpi_disable_wakeup_device(ACPI_STATE_S4);
276 acpi_leave_sleep_state(ACPI_STATE_S4); 350 acpi_leave_sleep_state(ACPI_STATE_S4);
277 351
@@ -279,6 +353,17 @@ static void acpi_hibernation_finish(void)
279 acpi_set_firmware_waking_vector((acpi_physical_address) 0); 353 acpi_set_firmware_waking_vector((acpi_physical_address) 0);
280 354
281 acpi_target_sleep_state = ACPI_STATE_S0; 355 acpi_target_sleep_state = ACPI_STATE_S0;
356 acpi_sleep_finish_wake_up = false;
357}
358
359static void acpi_hibernation_end(void)
360{
361 /*
362 * This is necessary in case acpi_hibernation_finish() is not called
363 * directly during a failing transition to the sleep state.
364 */
365 if (acpi_sleep_finish_wake_up)
366 acpi_hibernation_finish();
282} 367}
283 368
284static int acpi_hibernation_pre_restore(void) 369static int acpi_hibernation_pre_restore(void)
@@ -296,7 +381,8 @@ static void acpi_hibernation_restore_cleanup(void)
296} 381}
297 382
298static struct platform_hibernation_ops acpi_hibernation_ops = { 383static struct platform_hibernation_ops acpi_hibernation_ops = {
299 .start = acpi_hibernation_start, 384 .begin = acpi_hibernation_begin,
385 .end = acpi_hibernation_end,
300 .pre_snapshot = acpi_hibernation_prepare, 386 .pre_snapshot = acpi_hibernation_prepare,
301 .finish = acpi_hibernation_finish, 387 .finish = acpi_hibernation_finish,
302 .prepare = acpi_hibernation_prepare, 388 .prepare = acpi_hibernation_prepare,
@@ -386,11 +472,20 @@ int acpi_pm_device_sleep_state(struct device *dev, int wake, int *d_min_p)
386 if (acpi_target_sleep_state == ACPI_STATE_S0 || 472 if (acpi_target_sleep_state == ACPI_STATE_S0 ||
387 (wake && adev->wakeup.state.enabled && 473 (wake && adev->wakeup.state.enabled &&
388 adev->wakeup.sleep_state <= acpi_target_sleep_state)) { 474 adev->wakeup.sleep_state <= acpi_target_sleep_state)) {
475 acpi_status status;
476
389 acpi_method[3] = 'W'; 477 acpi_method[3] = 'W';
390 acpi_evaluate_integer(handle, acpi_method, NULL, &d_max); 478 status = acpi_evaluate_integer(handle, acpi_method, NULL,
391 /* Sanity check */ 479 &d_max);
392 if (d_max < d_min) 480 if (ACPI_FAILURE(status)) {
481 d_max = d_min;
482 } else if (d_max < d_min) {
483 /* Warn the user of the broken DSDT */
484 printk(KERN_WARNING "ACPI: Wrong value from %s\n",
485 acpi_method);
486 /* Sanitize it */
393 d_min = d_max; 487 d_min = d_max;
488 }
394 } 489 }
395 490
396 if (d_min_p) 491 if (d_min_p)
@@ -403,6 +498,7 @@ static void acpi_power_off_prepare(void)
403{ 498{
404 /* Prepare to power off the system */ 499 /* Prepare to power off the system */
405 acpi_sleep_prepare(ACPI_STATE_S5); 500 acpi_sleep_prepare(ACPI_STATE_S5);
501 acpi_hw_disable_all_gpes();
406} 502}
407 503
408static void acpi_power_off(void) 504static void acpi_power_off(void)
diff --git a/drivers/acpi/sleep/proc.c b/drivers/acpi/sleep/proc.c
index 1538355c266b..f8df5217d477 100644
--- a/drivers/acpi/sleep/proc.c
+++ b/drivers/acpi/sleep/proc.c
@@ -178,6 +178,9 @@ static int get_date_field(char **p, u32 * value)
178 * Try to find delimeter, only to insert null. The end of the 178 * Try to find delimeter, only to insert null. The end of the
179 * string won't have one, but is still valid. 179 * string won't have one, but is still valid.
180 */ 180 */
181 if (*p == NULL)
182 return result;
183
181 next = strpbrk(*p, "- :"); 184 next = strpbrk(*p, "- :");
182 if (next) 185 if (next)
183 *next++ = '\0'; 186 *next++ = '\0';
@@ -190,6 +193,8 @@ static int get_date_field(char **p, u32 * value)
190 193
191 if (next) 194 if (next)
192 *p = next; 195 *p = next;
196 else
197 *p = NULL;
193 198
194 return result; 199 return result;
195} 200}
@@ -251,27 +256,6 @@ acpi_system_write_alarm(struct file *file,
251 if ((result = get_date_field(&p, &sec))) 256 if ((result = get_date_field(&p, &sec)))
252 goto end; 257 goto end;
253 258
254 if (sec > 59) {
255 min += 1;
256 sec -= 60;
257 }
258 if (min > 59) {
259 hr += 1;
260 min -= 60;
261 }
262 if (hr > 23) {
263 day += 1;
264 hr -= 24;
265 }
266 if (day > 31) {
267 mo += 1;
268 day -= 31;
269 }
270 if (mo > 12) {
271 yr += 1;
272 mo -= 12;
273 }
274
275 spin_lock_irq(&rtc_lock); 259 spin_lock_irq(&rtc_lock);
276 260
277 rtc_control = CMOS_READ(RTC_CONTROL); 261 rtc_control = CMOS_READ(RTC_CONTROL);
@@ -288,24 +272,24 @@ acpi_system_write_alarm(struct file *file,
288 spin_unlock_irq(&rtc_lock); 272 spin_unlock_irq(&rtc_lock);
289 273
290 if (sec > 59) { 274 if (sec > 59) {
291 min++; 275 min += sec/60;
292 sec -= 60; 276 sec = sec%60;
293 } 277 }
294 if (min > 59) { 278 if (min > 59) {
295 hr++; 279 hr += min/60;
296 min -= 60; 280 min = min%60;
297 } 281 }
298 if (hr > 23) { 282 if (hr > 23) {
299 day++; 283 day += hr/24;
300 hr -= 24; 284 hr = hr%24;
301 } 285 }
302 if (day > 31) { 286 if (day > 31) {
303 mo++; 287 mo += day/32;
304 day -= 31; 288 day = day%32;
305 } 289 }
306 if (mo > 12) { 290 if (mo > 12) {
307 yr++; 291 yr += mo/13;
308 mo -= 12; 292 mo = mo%13;
309 } 293 }
310 294
311 spin_lock_irq(&rtc_lock); 295 spin_lock_irq(&rtc_lock);
diff --git a/drivers/acpi/sleep/sleep.h b/drivers/acpi/sleep/sleep.h
index a2ea125ae2d0..cfaf8f5b0a14 100644
--- a/drivers/acpi/sleep/sleep.h
+++ b/drivers/acpi/sleep/sleep.h
@@ -5,5 +5,3 @@ extern int acpi_suspend (u32 state);
5extern void acpi_enable_wakeup_device_prep(u8 sleep_state); 5extern void acpi_enable_wakeup_device_prep(u8 sleep_state);
6extern void acpi_enable_wakeup_device(u8 sleep_state); 6extern void acpi_enable_wakeup_device(u8 sleep_state);
7extern void acpi_disable_wakeup_device(u8 sleep_state); 7extern void acpi_disable_wakeup_device(u8 sleep_state);
8
9extern int acpi_sleep_prepare(u32 acpi_state);
diff --git a/drivers/acpi/system.c b/drivers/acpi/system.c
index edee2806e37b..5ffe0ea18967 100644
--- a/drivers/acpi/system.c
+++ b/drivers/acpi/system.c
@@ -58,7 +58,7 @@ module_param_call(acpica_version, NULL, param_get_acpica_version, NULL, 0444);
58 FS Interface (/sys) 58 FS Interface (/sys)
59 -------------------------------------------------------------------------- */ 59 -------------------------------------------------------------------------- */
60static LIST_HEAD(acpi_table_attr_list); 60static LIST_HEAD(acpi_table_attr_list);
61static struct kobject tables_kobj; 61static struct kobject *tables_kobj;
62 62
63struct acpi_table_attr { 63struct acpi_table_attr {
64 struct bin_attribute attr; 64 struct bin_attribute attr;
@@ -135,11 +135,9 @@ static int acpi_system_sysfs_init(void)
135 int table_index = 0; 135 int table_index = 0;
136 int result; 136 int result;
137 137
138 tables_kobj.parent = &acpi_subsys.kobj; 138 tables_kobj = kobject_create_and_add("tables", acpi_kobj);
139 kobject_set_name(&tables_kobj, "tables"); 139 if (!tables_kobj)
140 result = kobject_register(&tables_kobj); 140 return -ENOMEM;
141 if (result)
142 return result;
143 141
144 do { 142 do {
145 result = acpi_get_table_by_index(table_index, &table_header); 143 result = acpi_get_table_by_index(table_index, &table_header);
@@ -153,7 +151,7 @@ static int acpi_system_sysfs_init(void)
153 151
154 acpi_table_attr_init(table_attr, table_header); 152 acpi_table_attr_init(table_attr, table_header);
155 result = 153 result =
156 sysfs_create_bin_file(&tables_kobj, 154 sysfs_create_bin_file(tables_kobj,
157 &table_attr->attr); 155 &table_attr->attr);
158 if (result) { 156 if (result) {
159 kfree(table_attr); 157 kfree(table_attr);
@@ -163,6 +161,7 @@ static int acpi_system_sysfs_init(void)
163 &acpi_table_attr_list); 161 &acpi_table_attr_list);
164 } 162 }
165 } while (!result); 163 } while (!result);
164 kobject_uevent(tables_kobj, KOBJ_ADD);
166 165
167 return 0; 166 return 0;
168} 167}
diff --git a/drivers/acpi/tables/Makefile b/drivers/acpi/tables/Makefile
index 0a7d7afac255..7385efa61622 100644
--- a/drivers/acpi/tables/Makefile
+++ b/drivers/acpi/tables/Makefile
@@ -2,6 +2,6 @@
2# Makefile for all Linux ACPI interpreter subdirectories 2# Makefile for all Linux ACPI interpreter subdirectories
3# 3#
4 4
5obj-y := tbxface.o tbinstal.o tbutils.o tbfind.o tbfadt.o 5obj-y := tbxface.o tbinstal.o tbutils.o tbfind.o tbfadt.o tbxfroot.o
6 6
7EXTRA_CFLAGS += $(ACPI_CFLAGS) 7EXTRA_CFLAGS += $(ACPI_CFLAGS)
diff --git a/drivers/acpi/tables/tbutils.c b/drivers/acpi/tables/tbutils.c
index 5f1d85f2ffe4..010f19652f80 100644
--- a/drivers/acpi/tables/tbutils.c
+++ b/drivers/acpi/tables/tbutils.c
@@ -449,7 +449,7 @@ acpi_tb_parse_root_table(acpi_physical_address rsdp_address, u8 flags)
449 /* XSDT has NULL entry, RSDT is used */ 449 /* XSDT has NULL entry, RSDT is used */
450 address = rsdt_address; 450 address = rsdt_address;
451 table_entry_size = sizeof(u32); 451 table_entry_size = sizeof(u32);
452 ACPI_WARNING((AE_INFO, "BIOS XSDT has NULL entry," 452 ACPI_WARNING((AE_INFO, "BIOS XSDT has NULL entry, "
453 "using RSDT")); 453 "using RSDT"));
454 } 454 }
455 } 455 }
diff --git a/drivers/acpi/tables/tbxfroot.c b/drivers/acpi/tables/tbxfroot.c
index cf8fa514189f..9ecb4b6c1e7d 100644
--- a/drivers/acpi/tables/tbxfroot.c
+++ b/drivers/acpi/tables/tbxfroot.c
@@ -100,7 +100,7 @@ static acpi_status acpi_tb_validate_rsdp(struct acpi_table_rsdp *rsdp)
100 100
101/******************************************************************************* 101/*******************************************************************************
102 * 102 *
103 * FUNCTION: acpi_tb_find_rsdp 103 * FUNCTION: acpi_find_root_pointer
104 * 104 *
105 * PARAMETERS: table_address - Where the table pointer is returned 105 * PARAMETERS: table_address - Where the table pointer is returned
106 * 106 *
@@ -219,8 +219,6 @@ acpi_status acpi_find_root_pointer(acpi_native_uint * table_address)
219 return_ACPI_STATUS(AE_NOT_FOUND); 219 return_ACPI_STATUS(AE_NOT_FOUND);
220} 220}
221 221
222ACPI_EXPORT_SYMBOL(acpi_find_root_pointer)
223
224/******************************************************************************* 222/*******************************************************************************
225 * 223 *
226 * FUNCTION: acpi_tb_scan_memory_for_rsdp 224 * FUNCTION: acpi_tb_scan_memory_for_rsdp
diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index 5f79b4451212..3a0af9a8cd27 100644
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -492,7 +492,7 @@ static int acpi_thermal_get_devices(struct acpi_thermal *tz)
492 492
493static int acpi_thermal_critical(struct acpi_thermal *tz) 493static int acpi_thermal_critical(struct acpi_thermal *tz)
494{ 494{
495 if (!tz || !tz->trips.critical.flags.valid || nocrt) 495 if (!tz || !tz->trips.critical.flags.valid)
496 return -EINVAL; 496 return -EINVAL;
497 497
498 if (tz->temperature >= tz->trips.critical.temperature) { 498 if (tz->temperature >= tz->trips.critical.temperature) {
@@ -501,9 +501,6 @@ static int acpi_thermal_critical(struct acpi_thermal *tz)
501 } else if (tz->trips.critical.flags.enabled) 501 } else if (tz->trips.critical.flags.enabled)
502 tz->trips.critical.flags.enabled = 0; 502 tz->trips.critical.flags.enabled = 0;
503 503
504 printk(KERN_EMERG
505 "Critical temperature reached (%ld C), shutting down.\n",
506 KELVIN_TO_CELSIUS(tz->temperature));
507 acpi_bus_generate_proc_event(tz->device, ACPI_THERMAL_NOTIFY_CRITICAL, 504 acpi_bus_generate_proc_event(tz->device, ACPI_THERMAL_NOTIFY_CRITICAL,
508 tz->trips.critical.flags.enabled); 505 tz->trips.critical.flags.enabled);
509 acpi_bus_generate_netlink_event(tz->device->pnp.device_class, 506 acpi_bus_generate_netlink_event(tz->device->pnp.device_class,
@@ -511,14 +508,20 @@ static int acpi_thermal_critical(struct acpi_thermal *tz)
511 ACPI_THERMAL_NOTIFY_CRITICAL, 508 ACPI_THERMAL_NOTIFY_CRITICAL,
512 tz->trips.critical.flags.enabled); 509 tz->trips.critical.flags.enabled);
513 510
514 orderly_poweroff(true); 511 /* take no action if nocrt is set */
512 if(!nocrt) {
513 printk(KERN_EMERG
514 "Critical temperature reached (%ld C), shutting down.\n",
515 KELVIN_TO_CELSIUS(tz->temperature));
516 orderly_poweroff(true);
517 }
515 518
516 return 0; 519 return 0;
517} 520}
518 521
519static int acpi_thermal_hot(struct acpi_thermal *tz) 522static int acpi_thermal_hot(struct acpi_thermal *tz)
520{ 523{
521 if (!tz || !tz->trips.hot.flags.valid || nocrt) 524 if (!tz || !tz->trips.hot.flags.valid)
522 return -EINVAL; 525 return -EINVAL;
523 526
524 if (tz->temperature >= tz->trips.hot.temperature) { 527 if (tz->temperature >= tz->trips.hot.temperature) {
@@ -534,7 +537,7 @@ static int acpi_thermal_hot(struct acpi_thermal *tz)
534 ACPI_THERMAL_NOTIFY_HOT, 537 ACPI_THERMAL_NOTIFY_HOT,
535 tz->trips.hot.flags.enabled); 538 tz->trips.hot.flags.enabled);
536 539
537 /* TBD: Call user-mode "sleep(S4)" function */ 540 /* TBD: Call user-mode "sleep(S4)" function if nocrt is cleared */
538 541
539 return 0; 542 return 0;
540} 543}
diff --git a/drivers/acpi/utilities/utresrc.c b/drivers/acpi/utilities/utresrc.c
index cbbd3315a1e2..b630ee137ee1 100644
--- a/drivers/acpi/utilities/utresrc.c
+++ b/drivers/acpi/utilities/utresrc.c
@@ -1,6 +1,6 @@
1/******************************************************************************* 1/*******************************************************************************
2 * 2 *
3 * Module Name: utresrc - Resource managment utilities 3 * Module Name: utresrc - Resource management utilities
4 * 4 *
5 ******************************************************************************/ 5 ******************************************************************************/
6 6
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index bac956b30c57..a54ff6bce8fa 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -29,6 +29,7 @@
29#include <linux/init.h> 29#include <linux/init.h>
30#include <linux/types.h> 30#include <linux/types.h>
31#include <linux/list.h> 31#include <linux/list.h>
32#include <linux/mutex.h>
32#include <linux/proc_fs.h> 33#include <linux/proc_fs.h>
33#include <linux/seq_file.h> 34#include <linux/seq_file.h>
34#include <linux/input.h> 35#include <linux/input.h>
@@ -135,8 +136,8 @@ struct acpi_video_bus {
135 u8 attached_count; 136 u8 attached_count;
136 struct acpi_video_bus_cap cap; 137 struct acpi_video_bus_cap cap;
137 struct acpi_video_bus_flags flags; 138 struct acpi_video_bus_flags flags;
138 struct semaphore sem;
139 struct list_head video_device_list; 139 struct list_head video_device_list;
140 struct mutex device_list_lock; /* protects video_device_list */
140 struct proc_dir_entry *dir; 141 struct proc_dir_entry *dir;
141 struct input_dev *input; 142 struct input_dev *input;
142 char phys[32]; /* for input device */ 143 char phys[32]; /* for input device */
@@ -291,18 +292,26 @@ static int acpi_video_device_set_state(struct acpi_video_device *device, int sta
291static int acpi_video_get_brightness(struct backlight_device *bd) 292static int acpi_video_get_brightness(struct backlight_device *bd)
292{ 293{
293 unsigned long cur_level; 294 unsigned long cur_level;
295 int i;
294 struct acpi_video_device *vd = 296 struct acpi_video_device *vd =
295 (struct acpi_video_device *)bl_get_data(bd); 297 (struct acpi_video_device *)bl_get_data(bd);
296 acpi_video_device_lcd_get_level_current(vd, &cur_level); 298 acpi_video_device_lcd_get_level_current(vd, &cur_level);
297 return (int) cur_level; 299 for (i = 2; i < vd->brightness->count; i++) {
300 if (vd->brightness->levels[i] == cur_level)
301 /* The first two entries are special - see page 575
302 of the ACPI spec 3.0 */
303 return i-2;
304 }
305 return 0;
298} 306}
299 307
300static int acpi_video_set_brightness(struct backlight_device *bd) 308static int acpi_video_set_brightness(struct backlight_device *bd)
301{ 309{
302 int request_level = bd->props.brightness; 310 int request_level = bd->props.brightness+2;
303 struct acpi_video_device *vd = 311 struct acpi_video_device *vd =
304 (struct acpi_video_device *)bl_get_data(bd); 312 (struct acpi_video_device *)bl_get_data(bd);
305 acpi_video_device_lcd_set_level(vd, request_level); 313 acpi_video_device_lcd_set_level(vd,
314 vd->brightness->levels[request_level]);
306 return 0; 315 return 0;
307} 316}
308 317
@@ -576,7 +585,7 @@ static void acpi_video_device_find_cap(struct acpi_video_device *device)
576 struct acpi_video_device_brightness *br = NULL; 585 struct acpi_video_device_brightness *br = NULL;
577 586
578 587
579 memset(&device->cap, 0, 4); 588 memset(&device->cap, 0, sizeof(device->cap));
580 589
581 if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle, "_ADR", &h_dummy1))) { 590 if (ACPI_SUCCESS(acpi_get_handle(device->dev->handle, "_ADR", &h_dummy1))) {
582 device->cap._ADR = 1; 591 device->cap._ADR = 1;
@@ -651,7 +660,6 @@ static void acpi_video_device_find_cap(struct acpi_video_device *device)
651 kfree(obj); 660 kfree(obj);
652 661
653 if (device->cap._BCL && device->cap._BCM && device->cap._BQC && max_level > 0){ 662 if (device->cap._BCL && device->cap._BCM && device->cap._BQC && max_level > 0){
654 unsigned long tmp;
655 static int count = 0; 663 static int count = 0;
656 char *name; 664 char *name;
657 name = kzalloc(MAX_NAME_LEN, GFP_KERNEL); 665 name = kzalloc(MAX_NAME_LEN, GFP_KERNEL);
@@ -659,11 +667,10 @@ static void acpi_video_device_find_cap(struct acpi_video_device *device)
659 return; 667 return;
660 668
661 sprintf(name, "acpi_video%d", count++); 669 sprintf(name, "acpi_video%d", count++);
662 acpi_video_device_lcd_get_level_current(device, &tmp);
663 device->backlight = backlight_device_register(name, 670 device->backlight = backlight_device_register(name,
664 NULL, device, &acpi_backlight_ops); 671 NULL, device, &acpi_backlight_ops);
665 device->backlight->props.max_brightness = max_level; 672 device->backlight->props.max_brightness = device->brightness->count-3;
666 device->backlight->props.brightness = (int)tmp; 673 device->backlight->props.brightness = acpi_video_get_brightness(device->backlight);
667 backlight_update_status(device->backlight); 674 backlight_update_status(device->backlight);
668 675
669 kfree(name); 676 kfree(name);
@@ -696,7 +703,7 @@ static void acpi_video_bus_find_cap(struct acpi_video_bus *video)
696{ 703{
697 acpi_handle h_dummy1; 704 acpi_handle h_dummy1;
698 705
699 memset(&video->cap, 0, 4); 706 memset(&video->cap, 0, sizeof(video->cap));
700 if (ACPI_SUCCESS(acpi_get_handle(video->device->handle, "_DOS", &h_dummy1))) { 707 if (ACPI_SUCCESS(acpi_get_handle(video->device->handle, "_DOS", &h_dummy1))) {
701 video->cap._DOS = 1; 708 video->cap._DOS = 1;
702 } 709 }
@@ -896,7 +903,7 @@ acpi_video_device_write_brightness(struct file *file,
896{ 903{
897 struct seq_file *m = file->private_data; 904 struct seq_file *m = file->private_data;
898 struct acpi_video_device *dev = m->private; 905 struct acpi_video_device *dev = m->private;
899 char str[4] = { 0 }; 906 char str[5] = { 0 };
900 unsigned int level = 0; 907 unsigned int level = 0;
901 int i; 908 int i;
902 909
@@ -1255,8 +1262,37 @@ acpi_video_bus_write_DOS(struct file *file,
1255 1262
1256static int acpi_video_bus_add_fs(struct acpi_device *device) 1263static int acpi_video_bus_add_fs(struct acpi_device *device)
1257{ 1264{
1265 long device_id;
1266 int status;
1258 struct proc_dir_entry *entry = NULL; 1267 struct proc_dir_entry *entry = NULL;
1259 struct acpi_video_bus *video; 1268 struct acpi_video_bus *video;
1269 struct device *dev;
1270
1271 status =
1272 acpi_evaluate_integer(device->handle, "_ADR", NULL, &device_id);
1273
1274 if (!ACPI_SUCCESS(status))
1275 return -ENODEV;
1276
1277 /* We need to attempt to determine whether the _ADR refers to a
1278 PCI device or not. There's no terribly good way to do this,
1279 so the best we can hope for is to assume that there'll never
1280 be a video device in the host bridge */
1281 if (device_id >= 0x10000) {
1282 /* It looks like a PCI device. Does it exist? */
1283 dev = acpi_get_physical_device(device->handle);
1284 } else {
1285 /* It doesn't look like a PCI device. Does its parent
1286 exist? */
1287 acpi_handle phandle;
1288 if (acpi_get_parent(device->handle, &phandle))
1289 return -ENODEV;
1290 dev = acpi_get_physical_device(phandle);
1291 }
1292 if (!dev)
1293 return -ENODEV;
1294 put_device(dev);
1295
1260 1296
1261 1297
1262 video = acpi_driver_data(device); 1298 video = acpi_driver_data(device);
@@ -1436,9 +1472,9 @@ acpi_video_bus_get_one_device(struct acpi_device *device,
1436 return -ENODEV; 1472 return -ENODEV;
1437 } 1473 }
1438 1474
1439 down(&video->sem); 1475 mutex_lock(&video->device_list_lock);
1440 list_add_tail(&data->entry, &video->video_device_list); 1476 list_add_tail(&data->entry, &video->video_device_list);
1441 up(&video->sem); 1477 mutex_unlock(&video->device_list_lock);
1442 1478
1443 acpi_video_device_add_fs(device); 1479 acpi_video_device_add_fs(device);
1444 1480
@@ -1462,12 +1498,14 @@ acpi_video_bus_get_one_device(struct acpi_device *device,
1462 1498
1463static void acpi_video_device_rebind(struct acpi_video_bus *video) 1499static void acpi_video_device_rebind(struct acpi_video_bus *video)
1464{ 1500{
1465 struct list_head *node, *next; 1501 struct acpi_video_device *dev;
1466 list_for_each_safe(node, next, &video->video_device_list) { 1502
1467 struct acpi_video_device *dev = 1503 mutex_lock(&video->device_list_lock);
1468 container_of(node, struct acpi_video_device, entry); 1504
1505 list_for_each_entry(dev, &video->video_device_list, entry)
1469 acpi_video_device_bind(video, dev); 1506 acpi_video_device_bind(video, dev);
1470 } 1507
1508 mutex_unlock(&video->device_list_lock);
1471} 1509}
1472 1510
1473/* 1511/*
@@ -1592,30 +1630,33 @@ static int acpi_video_device_enumerate(struct acpi_video_bus *video)
1592 1630
1593static int acpi_video_switch_output(struct acpi_video_bus *video, int event) 1631static int acpi_video_switch_output(struct acpi_video_bus *video, int event)
1594{ 1632{
1595 struct list_head *node, *next; 1633 struct list_head *node;
1596 struct acpi_video_device *dev = NULL; 1634 struct acpi_video_device *dev = NULL;
1597 struct acpi_video_device *dev_next = NULL; 1635 struct acpi_video_device *dev_next = NULL;
1598 struct acpi_video_device *dev_prev = NULL; 1636 struct acpi_video_device *dev_prev = NULL;
1599 unsigned long state; 1637 unsigned long state;
1600 int status = 0; 1638 int status = 0;
1601 1639
1640 mutex_lock(&video->device_list_lock);
1602 1641
1603 list_for_each_safe(node, next, &video->video_device_list) { 1642 list_for_each(node, &video->video_device_list) {
1604 dev = container_of(node, struct acpi_video_device, entry); 1643 dev = container_of(node, struct acpi_video_device, entry);
1605 status = acpi_video_device_get_state(dev, &state); 1644 status = acpi_video_device_get_state(dev, &state);
1606 if (state & 0x2) { 1645 if (state & 0x2) {
1607 dev_next = 1646 dev_next = container_of(node->next,
1608 container_of(node->next, struct acpi_video_device, 1647 struct acpi_video_device, entry);
1609 entry); 1648 dev_prev = container_of(node->prev,
1610 dev_prev = 1649 struct acpi_video_device, entry);
1611 container_of(node->prev, struct acpi_video_device,
1612 entry);
1613 goto out; 1650 goto out;
1614 } 1651 }
1615 } 1652 }
1653
1616 dev_next = container_of(node->next, struct acpi_video_device, entry); 1654 dev_next = container_of(node->next, struct acpi_video_device, entry);
1617 dev_prev = container_of(node->prev, struct acpi_video_device, entry); 1655 dev_prev = container_of(node->prev, struct acpi_video_device, entry);
1618 out: 1656
1657 out:
1658 mutex_unlock(&video->device_list_lock);
1659
1619 switch (event) { 1660 switch (event) {
1620 case ACPI_VIDEO_NOTIFY_CYCLE: 1661 case ACPI_VIDEO_NOTIFY_CYCLE:
1621 case ACPI_VIDEO_NOTIFY_NEXT_OUTPUT: 1662 case ACPI_VIDEO_NOTIFY_NEXT_OUTPUT:
@@ -1691,24 +1732,17 @@ acpi_video_bus_get_devices(struct acpi_video_bus *video,
1691 struct acpi_device *device) 1732 struct acpi_device *device)
1692{ 1733{
1693 int status = 0; 1734 int status = 0;
1694 struct list_head *node, *next; 1735 struct acpi_device *dev;
1695
1696 1736
1697 acpi_video_device_enumerate(video); 1737 acpi_video_device_enumerate(video);
1698 1738
1699 list_for_each_safe(node, next, &device->children) { 1739 list_for_each_entry(dev, &device->children, node) {
1700 struct acpi_device *dev =
1701 list_entry(node, struct acpi_device, node);
1702
1703 if (!dev)
1704 continue;
1705 1740
1706 status = acpi_video_bus_get_one_device(dev, video); 1741 status = acpi_video_bus_get_one_device(dev, video);
1707 if (ACPI_FAILURE(status)) { 1742 if (ACPI_FAILURE(status)) {
1708 ACPI_EXCEPTION((AE_INFO, status, "Cant attach device")); 1743 ACPI_EXCEPTION((AE_INFO, status, "Cant attach device"));
1709 continue; 1744 continue;
1710 } 1745 }
1711
1712 } 1746 }
1713 return status; 1747 return status;
1714} 1748}
@@ -1724,9 +1758,6 @@ static int acpi_video_bus_put_one_device(struct acpi_video_device *device)
1724 1758
1725 video = device->video; 1759 video = device->video;
1726 1760
1727 down(&video->sem);
1728 list_del(&device->entry);
1729 up(&video->sem);
1730 acpi_video_device_remove_fs(device->dev); 1761 acpi_video_device_remove_fs(device->dev);
1731 1762
1732 status = acpi_remove_notify_handler(device->dev->handle, 1763 status = acpi_remove_notify_handler(device->dev->handle,
@@ -1734,32 +1765,34 @@ static int acpi_video_bus_put_one_device(struct acpi_video_device *device)
1734 acpi_video_device_notify); 1765 acpi_video_device_notify);
1735 backlight_device_unregister(device->backlight); 1766 backlight_device_unregister(device->backlight);
1736 video_output_unregister(device->output_dev); 1767 video_output_unregister(device->output_dev);
1768
1737 return 0; 1769 return 0;
1738} 1770}
1739 1771
1740static int acpi_video_bus_put_devices(struct acpi_video_bus *video) 1772static int acpi_video_bus_put_devices(struct acpi_video_bus *video)
1741{ 1773{
1742 int status; 1774 int status;
1743 struct list_head *node, *next; 1775 struct acpi_video_device *dev, *next;
1744 1776
1777 mutex_lock(&video->device_list_lock);
1745 1778
1746 list_for_each_safe(node, next, &video->video_device_list) { 1779 list_for_each_entry_safe(dev, next, &video->video_device_list, entry) {
1747 struct acpi_video_device *data =
1748 list_entry(node, struct acpi_video_device, entry);
1749 if (!data)
1750 continue;
1751 1780
1752 status = acpi_video_bus_put_one_device(data); 1781 status = acpi_video_bus_put_one_device(dev);
1753 if (ACPI_FAILURE(status)) 1782 if (ACPI_FAILURE(status))
1754 printk(KERN_WARNING PREFIX 1783 printk(KERN_WARNING PREFIX
1755 "hhuuhhuu bug in acpi video driver.\n"); 1784 "hhuuhhuu bug in acpi video driver.\n");
1756 1785
1757 if (data->brightness) 1786 if (dev->brightness) {
1758 kfree(data->brightness->levels); 1787 kfree(dev->brightness->levels);
1759 kfree(data->brightness); 1788 kfree(dev->brightness);
1760 kfree(data); 1789 }
1790 list_del(&dev->entry);
1791 kfree(dev);
1761 } 1792 }
1762 1793
1794 mutex_unlock(&video->device_list_lock);
1795
1763 return 0; 1796 return 0;
1764} 1797}
1765 1798
@@ -1782,9 +1815,6 @@ static void acpi_video_bus_notify(acpi_handle handle, u32 event, void *data)
1782 struct input_dev *input; 1815 struct input_dev *input;
1783 int keycode; 1816 int keycode;
1784 1817
1785
1786 printk("video bus notify\n");
1787
1788 if (!video) 1818 if (!video)
1789 return; 1819 return;
1790 1820
@@ -1897,14 +1927,10 @@ static void acpi_video_device_notify(acpi_handle handle, u32 event, void *data)
1897static int instance; 1927static int instance;
1898static int acpi_video_bus_add(struct acpi_device *device) 1928static int acpi_video_bus_add(struct acpi_device *device)
1899{ 1929{
1900 int result = 0; 1930 acpi_status status;
1901 acpi_status status = 0; 1931 struct acpi_video_bus *video;
1902 struct acpi_video_bus *video = NULL;
1903 struct input_dev *input; 1932 struct input_dev *input;
1904 1933 int error;
1905
1906 if (!device)
1907 return -EINVAL;
1908 1934
1909 video = kzalloc(sizeof(struct acpi_video_bus), GFP_KERNEL); 1935 video = kzalloc(sizeof(struct acpi_video_bus), GFP_KERNEL);
1910 if (!video) 1936 if (!video)
@@ -1923,15 +1949,15 @@ static int acpi_video_bus_add(struct acpi_device *device)
1923 acpi_driver_data(device) = video; 1949 acpi_driver_data(device) = video;
1924 1950
1925 acpi_video_bus_find_cap(video); 1951 acpi_video_bus_find_cap(video);
1926 result = acpi_video_bus_check(video); 1952 error = acpi_video_bus_check(video);
1927 if (result) 1953 if (error)
1928 goto end; 1954 goto err_free_video;
1929 1955
1930 result = acpi_video_bus_add_fs(device); 1956 error = acpi_video_bus_add_fs(device);
1931 if (result) 1957 if (error)
1932 goto end; 1958 goto err_free_video;
1933 1959
1934 init_MUTEX(&video->sem); 1960 mutex_init(&video->device_list_lock);
1935 INIT_LIST_HEAD(&video->video_device_list); 1961 INIT_LIST_HEAD(&video->video_device_list);
1936 1962
1937 acpi_video_bus_get_devices(video, device); 1963 acpi_video_bus_get_devices(video, device);
@@ -1943,16 +1969,15 @@ static int acpi_video_bus_add(struct acpi_device *device)
1943 if (ACPI_FAILURE(status)) { 1969 if (ACPI_FAILURE(status)) {
1944 ACPI_DEBUG_PRINT((ACPI_DB_ERROR, 1970 ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
1945 "Error installing notify handler\n")); 1971 "Error installing notify handler\n"));
1946 acpi_video_bus_stop_devices(video); 1972 error = -ENODEV;
1947 acpi_video_bus_put_devices(video); 1973 goto err_stop_video;
1948 kfree(video->attached_array);
1949 acpi_video_bus_remove_fs(device);
1950 result = -ENODEV;
1951 goto end;
1952 } 1974 }
1953 1975
1954
1955 video->input = input = input_allocate_device(); 1976 video->input = input = input_allocate_device();
1977 if (!input) {
1978 error = -ENOMEM;
1979 goto err_uninstall_notify;
1980 }
1956 1981
1957 snprintf(video->phys, sizeof(video->phys), 1982 snprintf(video->phys, sizeof(video->phys),
1958 "%s/video/input0", acpi_device_hid(video->device)); 1983 "%s/video/input0", acpi_device_hid(video->device));
@@ -1961,6 +1986,7 @@ static int acpi_video_bus_add(struct acpi_device *device)
1961 input->phys = video->phys; 1986 input->phys = video->phys;
1962 input->id.bustype = BUS_HOST; 1987 input->id.bustype = BUS_HOST;
1963 input->id.product = 0x06; 1988 input->id.product = 0x06;
1989 input->dev.parent = &device->dev;
1964 input->evbit[0] = BIT(EV_KEY); 1990 input->evbit[0] = BIT(EV_KEY);
1965 set_bit(KEY_SWITCHVIDEOMODE, input->keybit); 1991 set_bit(KEY_SWITCHVIDEOMODE, input->keybit);
1966 set_bit(KEY_VIDEO_NEXT, input->keybit); 1992 set_bit(KEY_VIDEO_NEXT, input->keybit);
@@ -1971,18 +1997,10 @@ static int acpi_video_bus_add(struct acpi_device *device)
1971 set_bit(KEY_BRIGHTNESS_ZERO, input->keybit); 1997 set_bit(KEY_BRIGHTNESS_ZERO, input->keybit);
1972 set_bit(KEY_DISPLAY_OFF, input->keybit); 1998 set_bit(KEY_DISPLAY_OFF, input->keybit);
1973 set_bit(KEY_UNKNOWN, input->keybit); 1999 set_bit(KEY_UNKNOWN, input->keybit);
1974 result = input_register_device(input);
1975 if (result) {
1976 acpi_remove_notify_handler(video->device->handle,
1977 ACPI_DEVICE_NOTIFY,
1978 acpi_video_bus_notify);
1979 acpi_video_bus_stop_devices(video);
1980 acpi_video_bus_put_devices(video);
1981 kfree(video->attached_array);
1982 acpi_video_bus_remove_fs(device);
1983 goto end;
1984 }
1985 2000
2001 error = input_register_device(input);
2002 if (error)
2003 goto err_free_input_dev;
1986 2004
1987 printk(KERN_INFO PREFIX "%s [%s] (multi-head: %s rom: %s post: %s)\n", 2005 printk(KERN_INFO PREFIX "%s [%s] (multi-head: %s rom: %s post: %s)\n",
1988 ACPI_VIDEO_DEVICE_NAME, acpi_device_bid(device), 2006 ACPI_VIDEO_DEVICE_NAME, acpi_device_bid(device),
@@ -1990,11 +2008,23 @@ static int acpi_video_bus_add(struct acpi_device *device)
1990 video->flags.rom ? "yes" : "no", 2008 video->flags.rom ? "yes" : "no",
1991 video->flags.post ? "yes" : "no"); 2009 video->flags.post ? "yes" : "no");
1992 2010
1993 end: 2011 return 0;
1994 if (result) 2012
1995 kfree(video); 2013 err_free_input_dev:
2014 input_free_device(input);
2015 err_uninstall_notify:
2016 acpi_remove_notify_handler(device->handle, ACPI_DEVICE_NOTIFY,
2017 acpi_video_bus_notify);
2018 err_stop_video:
2019 acpi_video_bus_stop_devices(video);
2020 acpi_video_bus_put_devices(video);
2021 kfree(video->attached_array);
2022 acpi_video_bus_remove_fs(device);
2023 err_free_video:
2024 kfree(video);
2025 acpi_driver_data(device) = NULL;
1996 2026
1997 return result; 2027 return error;
1998} 2028}
1999 2029
2000static int acpi_video_bus_remove(struct acpi_device *device, int type) 2030static int acpi_video_bus_remove(struct acpi_device *device, int type)
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-22 16:07:22 -0500