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authorLinus Torvalds <torvalds@linux-foundation.org>2010-03-14 23:29:21 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2010-03-14 23:29:21 -0400
commita3d3203e4bb40f253b1541e310dc0f9305be7c84 (patch)
treeac0d74a607493053da92244a6763e503c5904f4f
parentf937331b3f92cb2f67bc81baa1b8cc5198c439e5 (diff)
parentec28dcc6b4c00b78ad269ad5b85ebd5c2d504825 (diff)
Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (34 commits) ACPI: processor: push file static MADT pointer into internal map_madt_entry() ACPI: processor: refactor internal map_lsapic_id() ACPI: processor: refactor internal map_x2apic_id() ACPI: processor: refactor internal map_lapic_id() ACPI: processor: driver doesn't need to evaluate _PDC ACPI: processor: remove early _PDC optin quirks ACPI: processor: add internal processor_physically_present() ACPI: processor: move acpi_get_cpuid into processor_core.c ACPI: processor: export acpi_get_cpuid() ACPI: processor: mv processor_pdc.c processor_core.c ACPI: processor: mv processor_core.c processor_driver.c ACPI: plan to delete "acpi=ht" boot option ACPI: remove "acpi=ht" DMI blacklist PNPACPI: add bus number support PNPACPI: add window support resource: add window support resource: add bus number support resource: expand IORESOURCE_TYPE_BITS to make room for bus resource type acpiphp: Execute ACPI _REG method for hotadded devices ACPI video: Be more liberal in validating _BQC behaviour ...
Diffstat
-rw-r--r--Documentation/feature-removal-schedule.txt7
-rw-r--r--Documentation/kernel-parameters.txt4
-rw-r--r--arch/ia64/kernel/acpi.c3
-rw-r--r--arch/x86/kernel/acpi/boot.c100
-rw-r--r--drivers/acpi/Makefile4
-rw-r--r--drivers/acpi/acpica/exmutex.c3
-rw-r--r--drivers/acpi/battery.c86
-rw-r--r--drivers/acpi/bus.c10
-rw-r--r--drivers/acpi/ec.c33
-rw-r--r--drivers/acpi/internal.h2
-rw-r--r--drivers/acpi/processor_core.c1118
-rw-r--r--drivers/acpi/processor_driver.c978
-rw-r--r--drivers/acpi/processor_pdc.c209
-rw-r--r--drivers/acpi/processor_throttling.c3
-rw-r--r--drivers/acpi/sbs.c5
-rw-r--r--drivers/acpi/sleep.c19
-rw-r--r--drivers/acpi/thermal.c36
-rw-r--r--drivers/acpi/utils.c45
-rw-r--r--drivers/acpi/video.c28
-rw-r--r--drivers/pci/hotplug/acpiphp_glue.c19
-rw-r--r--drivers/platform/x86/sony-laptop.c91
-rw-r--r--drivers/pnp/base.h3
-rw-r--r--drivers/pnp/interface.c7
-rw-r--r--drivers/pnp/pnpacpi/rsparser.c49
-rw-r--r--drivers/pnp/resource.c27
-rw-r--r--drivers/pnp/support.c4
-rw-r--r--drivers/power/power_supply_sysfs.c1
-rw-r--r--include/acpi/processor.h10
-rw-r--r--include/linux/ioport.h18
-rw-r--r--include/linux/power_supply.h1
-rw-r--r--lib/vsprintf.c13
31 files changed, 1502 insertions, 1434 deletions
diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt
index a5cc0db63d7a..ed511af0f79a 100644
--- a/Documentation/feature-removal-schedule.txt
+++ b/Documentation/feature-removal-schedule.txt
@@ -582,3 +582,10 @@ Why: The paravirt mmu host support is slower than non-paravirt mmu, both
582Who: Avi Kivity <avi@redhat.com> 582Who: Avi Kivity <avi@redhat.com>
583 583
584---------------------------- 584----------------------------
585
586What: "acpi=ht" boot option
587When: 2.6.35
588Why: Useful in 2003, implementation is a hack.
589 Generally invoked by accident today.
590 Seen as doing more harm than good.
591Who: Len Brown <len.brown@intel.com>
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index 3bc48b0bd3a9..e4cbca58536c 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -200,10 +200,6 @@ and is between 256 and 4096 characters. It is defined in the file
200 acpi_display_output=video 200 acpi_display_output=video
201 See above. 201 See above.
202 202
203 acpi_early_pdc_eval [HW,ACPI] Evaluate processor _PDC methods
204 early. Needed on some platforms to properly
205 initialize the EC.
206
207 acpi_irq_balance [HW,ACPI] 203 acpi_irq_balance [HW,ACPI]
208 ACPI will balance active IRQs 204 ACPI will balance active IRQs
209 default in APIC mode 205 default in APIC mode
diff --git a/arch/ia64/kernel/acpi.c b/arch/ia64/kernel/acpi.c
index a7ca07f3754e..f1c9f70b4e45 100644
--- a/arch/ia64/kernel/acpi.c
+++ b/arch/ia64/kernel/acpi.c
@@ -44,6 +44,7 @@
44#include <linux/efi.h> 44#include <linux/efi.h>
45#include <linux/mmzone.h> 45#include <linux/mmzone.h>
46#include <linux/nodemask.h> 46#include <linux/nodemask.h>
47#include <acpi/processor.h>
47#include <asm/io.h> 48#include <asm/io.h>
48#include <asm/iosapic.h> 49#include <asm/iosapic.h>
49#include <asm/machvec.h> 50#include <asm/machvec.h>
@@ -907,6 +908,8 @@ int acpi_map_lsapic(acpi_handle handle, int *pcpu)
907 cpu_set(cpu, cpu_present_map); 908 cpu_set(cpu, cpu_present_map);
908 ia64_cpu_to_sapicid[cpu] = physid; 909 ia64_cpu_to_sapicid[cpu] = physid;
909 910
911 acpi_processor_set_pdc(handle);
912
910 *pcpu = cpu; 913 *pcpu = cpu;
911 return (0); 914 return (0);
912} 915}
diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c
index a54d714545ff..0061ea263061 100644
--- a/arch/x86/kernel/acpi/boot.c
+++ b/arch/x86/kernel/acpi/boot.c
@@ -490,6 +490,7 @@ int acpi_register_gsi(struct device *dev, u32 gsi, int trigger, int polarity)
490 * ACPI based hotplug support for CPU 490 * ACPI based hotplug support for CPU
491 */ 491 */
492#ifdef CONFIG_ACPI_HOTPLUG_CPU 492#ifdef CONFIG_ACPI_HOTPLUG_CPU
493#include <acpi/processor.h>
493 494
494static void acpi_map_cpu2node(acpi_handle handle, int cpu, int physid) 495static void acpi_map_cpu2node(acpi_handle handle, int cpu, int physid)
495{ 496{
@@ -567,6 +568,8 @@ static int __cpuinit _acpi_map_lsapic(acpi_handle handle, int *pcpu)
567 goto free_new_map; 568 goto free_new_map;
568 } 569 }
569 570
571 acpi_processor_set_pdc(handle);
572
570 cpu = cpumask_first(new_map); 573 cpu = cpumask_first(new_map);
571 acpi_map_cpu2node(handle, cpu, physid); 574 acpi_map_cpu2node(handle, cpu, physid);
572 575
@@ -1293,23 +1296,6 @@ static int __init dmi_disable_acpi(const struct dmi_system_id *d)
1293} 1296}
1294 1297
1295/* 1298/*
1296 * Limit ACPI to CPU enumeration for HT
1297 */
1298static int __init force_acpi_ht(const struct dmi_system_id *d)
1299{
1300 if (!acpi_force) {
1301 printk(KERN_NOTICE "%s detected: force use of acpi=ht\n",
1302 d->ident);
1303 disable_acpi();
1304 acpi_ht = 1;
1305 } else {
1306 printk(KERN_NOTICE
1307 "Warning: acpi=force overrules DMI blacklist: acpi=ht\n");
1308 }
1309 return 0;
1310}
1311
1312/*
1313 * Force ignoring BIOS IRQ0 pin2 override 1299 * Force ignoring BIOS IRQ0 pin2 override
1314 */ 1300 */
1315static int __init dmi_ignore_irq0_timer_override(const struct dmi_system_id *d) 1301static int __init dmi_ignore_irq0_timer_override(const struct dmi_system_id *d)
@@ -1345,82 +1331,6 @@ static struct dmi_system_id __initdata acpi_dmi_table[] = {
1345 }, 1331 },
1346 1332
1347 /* 1333 /*
1348 * Boxes that need acpi=ht
1349 */
1350 {
1351 .callback = force_acpi_ht,
1352 .ident = "FSC Primergy T850",
1353 .matches = {
1354 DMI_MATCH(DMI_SYS_VENDOR, "FUJITSU SIEMENS"),
1355 DMI_MATCH(DMI_PRODUCT_NAME, "PRIMERGY T850"),
1356 },
1357 },
1358 {
1359 .callback = force_acpi_ht,
1360 .ident = "HP VISUALIZE NT Workstation",
1361 .matches = {
1362 DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),
1363 DMI_MATCH(DMI_PRODUCT_NAME, "HP VISUALIZE NT Workstation"),
1364 },
1365 },
1366 {
1367 .callback = force_acpi_ht,
1368 .ident = "Compaq Workstation W8000",
1369 .matches = {
1370 DMI_MATCH(DMI_SYS_VENDOR, "Compaq"),
1371 DMI_MATCH(DMI_PRODUCT_NAME, "Workstation W8000"),
1372 },
1373 },
1374 {
1375 .callback = force_acpi_ht,
1376 .ident = "ASUS CUR-DLS",
1377 .matches = {
1378 DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK Computer INC."),
1379 DMI_MATCH(DMI_BOARD_NAME, "CUR-DLS"),
1380 },
1381 },
1382 {
1383 .callback = force_acpi_ht,
1384 .ident = "ABIT i440BX-W83977",
1385 .matches = {
1386 DMI_MATCH(DMI_BOARD_VENDOR, "ABIT <http://www.abit.com>"),
1387 DMI_MATCH(DMI_BOARD_NAME, "i440BX-W83977 (BP6)"),
1388 },
1389 },
1390 {
1391 .callback = force_acpi_ht,
1392 .ident = "IBM Bladecenter",
1393 .matches = {
1394 DMI_MATCH(DMI_BOARD_VENDOR, "IBM"),
1395 DMI_MATCH(DMI_BOARD_NAME, "IBM eServer BladeCenter HS20"),
1396 },
1397 },
1398 {
1399 .callback = force_acpi_ht,
1400 .ident = "IBM eServer xSeries 360",
1401 .matches = {
1402 DMI_MATCH(DMI_BOARD_VENDOR, "IBM"),
1403 DMI_MATCH(DMI_BOARD_NAME, "eServer xSeries 360"),
1404 },
1405 },
1406 {
1407 .callback = force_acpi_ht,
1408 .ident = "IBM eserver xSeries 330",
1409 .matches = {
1410 DMI_MATCH(DMI_BOARD_VENDOR, "IBM"),
1411 DMI_MATCH(DMI_BOARD_NAME, "eserver xSeries 330"),
1412 },
1413 },
1414 {
1415 .callback = force_acpi_ht,
1416 .ident = "IBM eserver xSeries 440",
1417 .matches = {
1418 DMI_MATCH(DMI_BOARD_VENDOR, "IBM"),
1419 DMI_MATCH(DMI_PRODUCT_NAME, "eserver xSeries 440"),
1420 },
1421 },
1422
1423 /*
1424 * Boxes that need ACPI PCI IRQ routing disabled 1334 * Boxes that need ACPI PCI IRQ routing disabled
1425 */ 1335 */
1426 { 1336 {
@@ -1652,8 +1562,10 @@ static int __init parse_acpi(char *arg)
1652 } 1562 }
1653 /* Limit ACPI just to boot-time to enable HT */ 1563 /* Limit ACPI just to boot-time to enable HT */
1654 else if (strcmp(arg, "ht") == 0) { 1564 else if (strcmp(arg, "ht") == 0) {
1655 if (!acpi_force) 1565 if (!acpi_force) {
1566 printk(KERN_WARNING "acpi=ht will be removed in Linux-2.6.35\n");
1656 disable_acpi(); 1567 disable_acpi();
1568 }
1657 acpi_ht = 1; 1569 acpi_ht = 1;
1658 } 1570 }
1659 /* acpi=rsdt use RSDT instead of XSDT */ 1571 /* acpi=rsdt use RSDT instead of XSDT */
diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile
index 66cc3f36a954..a8d8998dd5c5 100644
--- a/drivers/acpi/Makefile
+++ b/drivers/acpi/Makefile
@@ -32,7 +32,7 @@ acpi-$(CONFIG_ACPI_SLEEP) += proc.o
32# 32#
33acpi-y += bus.o glue.o 33acpi-y += bus.o glue.o
34acpi-y += scan.o 34acpi-y += scan.o
35acpi-y += processor_pdc.o 35acpi-y += processor_core.o
36acpi-y += ec.o 36acpi-y += ec.o
37acpi-$(CONFIG_ACPI_DOCK) += dock.o 37acpi-$(CONFIG_ACPI_DOCK) += dock.o
38acpi-y += pci_root.o pci_link.o pci_irq.o pci_bind.o 38acpi-y += pci_root.o pci_link.o pci_irq.o pci_bind.o
@@ -61,7 +61,7 @@ obj-$(CONFIG_ACPI_SBS) += sbs.o
61obj-$(CONFIG_ACPI_POWER_METER) += power_meter.o 61obj-$(CONFIG_ACPI_POWER_METER) += power_meter.o
62 62
63# processor has its own "processor." module_param namespace 63# processor has its own "processor." module_param namespace
64processor-y := processor_core.o processor_throttling.o 64processor-y := processor_driver.o processor_throttling.o
65processor-y += processor_idle.o processor_thermal.o 65processor-y += processor_idle.o processor_thermal.o
66processor-$(CONFIG_CPU_FREQ) += processor_perflib.o 66processor-$(CONFIG_CPU_FREQ) += processor_perflib.o
67 67
diff --git a/drivers/acpi/acpica/exmutex.c b/drivers/acpi/acpica/exmutex.c
index cc8a10268f68..7116bc86494d 100644
--- a/drivers/acpi/acpica/exmutex.c
+++ b/drivers/acpi/acpica/exmutex.c
@@ -375,8 +375,7 @@ acpi_ex_release_mutex(union acpi_operand_object *obj_desc,
375 return_ACPI_STATUS(AE_AML_MUTEX_NOT_ACQUIRED); 375 return_ACPI_STATUS(AE_AML_MUTEX_NOT_ACQUIRED);
376 } 376 }
377 377
378 /* Must have a valid thread ID */ 378 /* Must have a valid thread. */
379
380 if (!walk_state->thread) { 379 if (!walk_state->thread) {
381 ACPI_ERROR((AE_INFO, 380 ACPI_ERROR((AE_INFO,
382 "Cannot release Mutex [%4.4s], null thread info", 381 "Cannot release Mutex [%4.4s], null thread info",
diff --git a/drivers/acpi/battery.c b/drivers/acpi/battery.c
index 58d2c91ba62b..75f39f2c166d 100644
--- a/drivers/acpi/battery.c
+++ b/drivers/acpi/battery.c
@@ -54,6 +54,7 @@
54#define ACPI_BATTERY_DEVICE_NAME "Battery" 54#define ACPI_BATTERY_DEVICE_NAME "Battery"
55#define ACPI_BATTERY_NOTIFY_STATUS 0x80 55#define ACPI_BATTERY_NOTIFY_STATUS 0x80
56#define ACPI_BATTERY_NOTIFY_INFO 0x81 56#define ACPI_BATTERY_NOTIFY_INFO 0x81
57#define ACPI_BATTERY_NOTIFY_THRESHOLD 0x82
57 58
58#define _COMPONENT ACPI_BATTERY_COMPONENT 59#define _COMPONENT ACPI_BATTERY_COMPONENT
59 60
@@ -88,10 +89,15 @@ static const struct acpi_device_id battery_device_ids[] = {
88 89
89MODULE_DEVICE_TABLE(acpi, battery_device_ids); 90MODULE_DEVICE_TABLE(acpi, battery_device_ids);
90 91
91/* For buggy DSDTs that report negative 16-bit values for either charging 92enum {
92 * or discharging current and/or report 0 as 65536 due to bad math. 93 ACPI_BATTERY_ALARM_PRESENT,
93 */ 94 ACPI_BATTERY_XINFO_PRESENT,
94#define QUIRK_SIGNED16_CURRENT 0x0001 95 /* For buggy DSDTs that report negative 16-bit values for either
96 * charging or discharging current and/or report 0 as 65536
97 * due to bad math.
98 */
99 ACPI_BATTERY_QUIRK_SIGNED16_CURRENT,
100};
95 101
96struct acpi_battery { 102struct acpi_battery {
97 struct mutex lock; 103 struct mutex lock;
@@ -109,6 +115,12 @@ struct acpi_battery {
109 int design_voltage; 115 int design_voltage;
110 int design_capacity_warning; 116 int design_capacity_warning;
111 int design_capacity_low; 117 int design_capacity_low;
118 int cycle_count;
119 int measurement_accuracy;
120 int max_sampling_time;
121 int min_sampling_time;
122 int max_averaging_interval;
123 int min_averaging_interval;
112 int capacity_granularity_1; 124 int capacity_granularity_1;
113 int capacity_granularity_2; 125 int capacity_granularity_2;
114 int alarm; 126 int alarm;
@@ -118,8 +130,7 @@ struct acpi_battery {
118 char oem_info[32]; 130 char oem_info[32];
119 int state; 131 int state;
120 int power_unit; 132 int power_unit;
121 u8 alarm_present; 133 unsigned long flags;
122 long quirks;
123}; 134};
124 135
125#define to_acpi_battery(x) container_of(x, struct acpi_battery, bat); 136#define to_acpi_battery(x) container_of(x, struct acpi_battery, bat);
@@ -198,6 +209,9 @@ static int acpi_battery_get_property(struct power_supply *psy,
198 case POWER_SUPPLY_PROP_TECHNOLOGY: 209 case POWER_SUPPLY_PROP_TECHNOLOGY:
199 val->intval = acpi_battery_technology(battery); 210 val->intval = acpi_battery_technology(battery);
200 break; 211 break;
212 case POWER_SUPPLY_PROP_CYCLE_COUNT:
213 val->intval = battery->cycle_count;
214 break;
201 case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN: 215 case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN:
202 val->intval = battery->design_voltage * 1000; 216 val->intval = battery->design_voltage * 1000;
203 break; 217 break;
@@ -239,6 +253,7 @@ static enum power_supply_property charge_battery_props[] = {
239 POWER_SUPPLY_PROP_STATUS, 253 POWER_SUPPLY_PROP_STATUS,
240 POWER_SUPPLY_PROP_PRESENT, 254 POWER_SUPPLY_PROP_PRESENT,
241 POWER_SUPPLY_PROP_TECHNOLOGY, 255 POWER_SUPPLY_PROP_TECHNOLOGY,
256 POWER_SUPPLY_PROP_CYCLE_COUNT,
242 POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN, 257 POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
243 POWER_SUPPLY_PROP_VOLTAGE_NOW, 258 POWER_SUPPLY_PROP_VOLTAGE_NOW,
244 POWER_SUPPLY_PROP_CURRENT_NOW, 259 POWER_SUPPLY_PROP_CURRENT_NOW,
@@ -254,6 +269,7 @@ static enum power_supply_property energy_battery_props[] = {
254 POWER_SUPPLY_PROP_STATUS, 269 POWER_SUPPLY_PROP_STATUS,
255 POWER_SUPPLY_PROP_PRESENT, 270 POWER_SUPPLY_PROP_PRESENT,
256 POWER_SUPPLY_PROP_TECHNOLOGY, 271 POWER_SUPPLY_PROP_TECHNOLOGY,
272 POWER_SUPPLY_PROP_CYCLE_COUNT,
257 POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN, 273 POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
258 POWER_SUPPLY_PROP_VOLTAGE_NOW, 274 POWER_SUPPLY_PROP_VOLTAGE_NOW,
259 POWER_SUPPLY_PROP_CURRENT_NOW, 275 POWER_SUPPLY_PROP_CURRENT_NOW,
@@ -305,6 +321,28 @@ static struct acpi_offsets info_offsets[] = {
305 {offsetof(struct acpi_battery, oem_info), 1}, 321 {offsetof(struct acpi_battery, oem_info), 1},
306}; 322};
307 323
324static struct acpi_offsets extended_info_offsets[] = {
325 {offsetof(struct acpi_battery, power_unit), 0},
326 {offsetof(struct acpi_battery, design_capacity), 0},
327 {offsetof(struct acpi_battery, full_charge_capacity), 0},
328 {offsetof(struct acpi_battery, technology), 0},
329 {offsetof(struct acpi_battery, design_voltage), 0},
330 {offsetof(struct acpi_battery, design_capacity_warning), 0},
331 {offsetof(struct acpi_battery, design_capacity_low), 0},
332 {offsetof(struct acpi_battery, cycle_count), 0},
333 {offsetof(struct acpi_battery, measurement_accuracy), 0},
334 {offsetof(struct acpi_battery, max_sampling_time), 0},
335 {offsetof(struct acpi_battery, min_sampling_time), 0},
336 {offsetof(struct acpi_battery, max_averaging_interval), 0},
337 {offsetof(struct acpi_battery, min_averaging_interval), 0},
338 {offsetof(struct acpi_battery, capacity_granularity_1), 0},
339 {offsetof(struct acpi_battery, capacity_granularity_2), 0},
340 {offsetof(struct acpi_battery, model_number), 1},
341 {offsetof(struct acpi_battery, serial_number), 1},
342 {offsetof(struct acpi_battery, type), 1},
343 {offsetof(struct acpi_battery, oem_info), 1},
344};
345
308static int extract_package(struct acpi_battery *battery, 346static int extract_package(struct acpi_battery *battery,
309 union acpi_object *package, 347 union acpi_object *package,
310 struct acpi_offsets *offsets, int num) 348 struct acpi_offsets *offsets, int num)
@@ -350,22 +388,29 @@ static int acpi_battery_get_info(struct acpi_battery *battery)
350{ 388{
351 int result = -EFAULT; 389 int result = -EFAULT;
352 acpi_status status = 0; 390 acpi_status status = 0;
391 char *name = test_bit(ACPI_BATTERY_XINFO_PRESENT, &battery->flags)?
392 "_BIX" : "_BIF";
393
353 struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; 394 struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
354 395
355 if (!acpi_battery_present(battery)) 396 if (!acpi_battery_present(battery))
356 return 0; 397 return 0;
357 mutex_lock(&battery->lock); 398 mutex_lock(&battery->lock);
358 status = acpi_evaluate_object(battery->device->handle, "_BIF", 399 status = acpi_evaluate_object(battery->device->handle, name,
359 NULL, &buffer); 400 NULL, &buffer);
360 mutex_unlock(&battery->lock); 401 mutex_unlock(&battery->lock);
361 402
362 if (ACPI_FAILURE(status)) { 403 if (ACPI_FAILURE(status)) {
363 ACPI_EXCEPTION((AE_INFO, status, "Evaluating _BIF")); 404 ACPI_EXCEPTION((AE_INFO, status, "Evaluating %s", name));
364 return -ENODEV; 405 return -ENODEV;
365 } 406 }
366 407 if (test_bit(ACPI_BATTERY_XINFO_PRESENT, &battery->flags))
367 result = extract_package(battery, buffer.pointer, 408 result = extract_package(battery, buffer.pointer,
368 info_offsets, ARRAY_SIZE(info_offsets)); 409 extended_info_offsets,
410 ARRAY_SIZE(extended_info_offsets));
411 else
412 result = extract_package(battery, buffer.pointer,
413 info_offsets, ARRAY_SIZE(info_offsets));
369 kfree(buffer.pointer); 414 kfree(buffer.pointer);
370 return result; 415 return result;
371} 416}
@@ -399,7 +444,7 @@ static int acpi_battery_get_state(struct acpi_battery *battery)
399 battery->update_time = jiffies; 444 battery->update_time = jiffies;
400 kfree(buffer.pointer); 445 kfree(buffer.pointer);
401 446
402 if ((battery->quirks & QUIRK_SIGNED16_CURRENT) && 447 if (test_bit(ACPI_BATTERY_QUIRK_SIGNED16_CURRENT, &battery->flags) &&
403 battery->rate_now != -1) 448 battery->rate_now != -1)
404 battery->rate_now = abs((s16)battery->rate_now); 449 battery->rate_now = abs((s16)battery->rate_now);
405 450
@@ -412,7 +457,8 @@ static int acpi_battery_set_alarm(struct acpi_battery *battery)
412 union acpi_object arg0 = { .type = ACPI_TYPE_INTEGER }; 457 union acpi_object arg0 = { .type = ACPI_TYPE_INTEGER };
413 struct acpi_object_list arg_list = { 1, &arg0 }; 458 struct acpi_object_list arg_list = { 1, &arg0 };
414 459
415 if (!acpi_battery_present(battery)|| !battery->alarm_present) 460 if (!acpi_battery_present(battery) ||
461 !test_bit(ACPI_BATTERY_ALARM_PRESENT, &battery->flags))
416 return -ENODEV; 462 return -ENODEV;
417 463
418 arg0.integer.value = battery->alarm; 464 arg0.integer.value = battery->alarm;
@@ -437,10 +483,10 @@ static int acpi_battery_init_alarm(struct acpi_battery *battery)
437 /* See if alarms are supported, and if so, set default */ 483 /* See if alarms are supported, and if so, set default */
438 status = acpi_get_handle(battery->device->handle, "_BTP", &handle); 484 status = acpi_get_handle(battery->device->handle, "_BTP", &handle);
439 if (ACPI_FAILURE(status)) { 485 if (ACPI_FAILURE(status)) {
440 battery->alarm_present = 0; 486 clear_bit(ACPI_BATTERY_ALARM_PRESENT, &battery->flags);
441 return 0; 487 return 0;
442 } 488 }
443 battery->alarm_present = 1; 489 set_bit(ACPI_BATTERY_ALARM_PRESENT, &battery->flags);
444 if (!battery->alarm) 490 if (!battery->alarm)
445 battery->alarm = battery->design_capacity_warning; 491 battery->alarm = battery->design_capacity_warning;
446 return acpi_battery_set_alarm(battery); 492 return acpi_battery_set_alarm(battery);
@@ -510,9 +556,8 @@ static void sysfs_remove_battery(struct acpi_battery *battery)
510 556
511static void acpi_battery_quirks(struct acpi_battery *battery) 557static void acpi_battery_quirks(struct acpi_battery *battery)
512{ 558{
513 battery->quirks = 0;
514 if (dmi_name_in_vendors("Acer") && battery->power_unit) { 559 if (dmi_name_in_vendors("Acer") && battery->power_unit) {
515 battery->quirks |= QUIRK_SIGNED16_CURRENT; 560 set_bit(ACPI_BATTERY_QUIRK_SIGNED16_CURRENT, &battery->flags);
516 } 561 }
517} 562}
518 563
@@ -590,6 +635,7 @@ static int acpi_battery_print_info(struct seq_file *seq, int result)
590 seq_printf(seq, "design capacity low: %d %sh\n", 635 seq_printf(seq, "design capacity low: %d %sh\n",
591 battery->design_capacity_low, 636 battery->design_capacity_low,
592 acpi_battery_units(battery)); 637 acpi_battery_units(battery));
638 seq_printf(seq, "cycle count: %i\n", battery->cycle_count);
593 seq_printf(seq, "capacity granularity 1: %d %sh\n", 639 seq_printf(seq, "capacity granularity 1: %d %sh\n",
594 battery->capacity_granularity_1, 640 battery->capacity_granularity_1,
595 acpi_battery_units(battery)); 641 acpi_battery_units(battery));
@@ -841,6 +887,7 @@ static int acpi_battery_add(struct acpi_device *device)
841{ 887{
842 int result = 0; 888 int result = 0;
843 struct acpi_battery *battery = NULL; 889 struct acpi_battery *battery = NULL;
890 acpi_handle handle;
844 if (!device) 891 if (!device)
845 return -EINVAL; 892 return -EINVAL;
846 battery = kzalloc(sizeof(struct acpi_battery), GFP_KERNEL); 893 battery = kzalloc(sizeof(struct acpi_battery), GFP_KERNEL);
@@ -851,6 +898,9 @@ static int acpi_battery_add(struct acpi_device *device)
851 strcpy(acpi_device_class(device), ACPI_BATTERY_CLASS); 898 strcpy(acpi_device_class(device), ACPI_BATTERY_CLASS);
852 device->driver_data = battery; 899 device->driver_data = battery;
853 mutex_init(&battery->lock); 900 mutex_init(&battery->lock);
901 if (ACPI_SUCCESS(acpi_get_handle(battery->device->handle,
902 "_BIX", &handle)))
903 set_bit(ACPI_BATTERY_XINFO_PRESENT, &battery->flags);
854 acpi_battery_update(battery); 904 acpi_battery_update(battery);
855#ifdef CONFIG_ACPI_PROCFS_POWER 905#ifdef CONFIG_ACPI_PROCFS_POWER
856 result = acpi_battery_add_fs(device); 906 result = acpi_battery_add_fs(device);
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index a52126e46307..b70cd3756142 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -190,16 +190,16 @@ int acpi_bus_get_power(acpi_handle handle, int *state)
190 * Get the device's power state either directly (via _PSC) or 190 * Get the device's power state either directly (via _PSC) or
191 * indirectly (via power resources). 191 * indirectly (via power resources).
192 */ 192 */
193 if (device->power.flags.explicit_get) { 193 if (device->power.flags.power_resources) {
194 result = acpi_power_get_inferred_state(device);
195 if (result)
196 return result;
197 } else if (device->power.flags.explicit_get) {
194 status = acpi_evaluate_integer(device->handle, "_PSC", 198 status = acpi_evaluate_integer(device->handle, "_PSC",
195 NULL, &psc); 199 NULL, &psc);
196 if (ACPI_FAILURE(status)) 200 if (ACPI_FAILURE(status))
197 return -ENODEV; 201 return -ENODEV;
198 device->power.state = (int)psc; 202 device->power.state = (int)psc;
199 } else if (device->power.flags.power_resources) {
200 result = acpi_power_get_inferred_state(device);
201 if (result)
202 return result;
203 } 203 }
204 204
205 *state = device->power.state; 205 *state = device->power.state;
diff --git a/drivers/acpi/ec.c b/drivers/acpi/ec.c
index d7a6bbbb834c..1ac28c6a672e 100644
--- a/drivers/acpi/ec.c
+++ b/drivers/acpi/ec.c
@@ -76,8 +76,9 @@ enum ec_command {
76enum { 76enum {
77 EC_FLAGS_QUERY_PENDING, /* Query is pending */ 77 EC_FLAGS_QUERY_PENDING, /* Query is pending */
78 EC_FLAGS_GPE_STORM, /* GPE storm detected */ 78 EC_FLAGS_GPE_STORM, /* GPE storm detected */
79 EC_FLAGS_HANDLERS_INSTALLED /* Handlers for GPE and 79 EC_FLAGS_HANDLERS_INSTALLED, /* Handlers for GPE and
80 * OpReg are installed */ 80 * OpReg are installed */
81 EC_FLAGS_FROZEN, /* Transactions are suspended */
81}; 82};
82 83
83/* If we find an EC via the ECDT, we need to keep a ptr to its context */ 84/* If we find an EC via the ECDT, we need to keep a ptr to its context */
@@ -291,6 +292,10 @@ static int acpi_ec_transaction(struct acpi_ec *ec, struct transaction *t)
291 if (t->rdata) 292 if (t->rdata)
292 memset(t->rdata, 0, t->rlen); 293 memset(t->rdata, 0, t->rlen);
293 mutex_lock(&ec->lock); 294 mutex_lock(&ec->lock);
295 if (test_bit(EC_FLAGS_FROZEN, &ec->flags)) {
296 status = -EINVAL;
297 goto unlock;
298 }
294 if (ec->global_lock) { 299 if (ec->global_lock) {
295 status = acpi_acquire_global_lock(ACPI_EC_UDELAY_GLK, &glk); 300 status = acpi_acquire_global_lock(ACPI_EC_UDELAY_GLK, &glk);
296 if (ACPI_FAILURE(status)) { 301 if (ACPI_FAILURE(status)) {
@@ -453,6 +458,32 @@ int ec_transaction(u8 command,
453 458
454EXPORT_SYMBOL(ec_transaction); 459EXPORT_SYMBOL(ec_transaction);
455 460
461void acpi_ec_suspend_transactions(void)
462{
463 struct acpi_ec *ec = first_ec;
464
465 if (!ec)
466 return;
467
468 mutex_lock(&ec->lock);
469 /* Prevent transactions from being carried out */
470 set_bit(EC_FLAGS_FROZEN, &ec->flags);
471 mutex_unlock(&ec->lock);
472}
473
474void acpi_ec_resume_transactions(void)
475{
476 struct acpi_ec *ec = first_ec;
477
478 if (!ec)
479 return;
480
481 mutex_lock(&ec->lock);
482 /* Allow transactions to be carried out again */
483 clear_bit(EC_FLAGS_FROZEN, &ec->flags);
484 mutex_unlock(&ec->lock);
485}
486
456static int acpi_ec_query_unlocked(struct acpi_ec *ec, u8 * data) 487static int acpi_ec_query_unlocked(struct acpi_ec *ec, u8 * data)
457{ 488{
458 int result; 489 int result;
diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
index 9c4c962e46e3..e28411367239 100644
--- a/drivers/acpi/internal.h
+++ b/drivers/acpi/internal.h
@@ -49,6 +49,8 @@ void acpi_early_processor_set_pdc(void);
49int acpi_ec_init(void); 49int acpi_ec_init(void);
50int acpi_ec_ecdt_probe(void); 50int acpi_ec_ecdt_probe(void);
51int acpi_boot_ec_enable(void); 51int acpi_boot_ec_enable(void);
52void acpi_ec_suspend_transactions(void);
53void acpi_ec_resume_transactions(void);
52 54
53/*-------------------------------------------------------------------------- 55/*--------------------------------------------------------------------------
54 Suspend/Resume 56 Suspend/Resume
diff --git a/drivers/acpi/processor_core.c b/drivers/acpi/processor_core.c
index e9b7b402dbfb..791ac7b0f8df 100644
--- a/drivers/acpi/processor_core.c
+++ b/drivers/acpi/processor_core.c
@@ -1,383 +1,62 @@
1/* 1/*
2 * acpi_processor.c - ACPI Processor Driver ($Revision: 71 $) 2 * Copyright (C) 2005 Intel Corporation
3 * Copyright (C) 2009 Hewlett-Packard Development Company, L.P.
3 * 4 *
4 * Copyright (C) 2001, 2002 Andy Grover <andrew.grover@intel.com> 5 * Alex Chiang <achiang@hp.com>
5 * Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com> 6 * - Unified x86/ia64 implementations
6 * Copyright (C) 2004 Dominik Brodowski <linux@brodo.de> 7 * Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
7 * Copyright (C) 2004 Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com> 8 * - Added _PDC for platforms with Intel CPUs
8 * - Added processor hotplug support
9 *
10 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
11 *
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
14 * the Free Software Foundation; either version 2 of the License, or (at
15 * your option) any later version.
16 *
17 * This program is distributed in the hope that it will be useful, but
18 * WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20 * General Public License for more details.
21 *
22 * You should have received a copy of the GNU General Public License along
23 * with this program; if not, write to the Free Software Foundation, Inc.,
24 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
25 *
26 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
27 * TBD:
28 * 1. Make # power states dynamic.
29 * 2. Support duty_cycle values that span bit 4.
30 * 3. Optimize by having scheduler determine business instead of
31 * having us try to calculate it here.
32 * 4. Need C1 timing -- must modify kernel (IRQ handler) to get this.
33 */ 9 */
34
35#include <linux/kernel.h>
36#include <linux/module.h>
37#include <linux/init.h>
38#include <linux/types.h>
39#include <linux/pci.h>
40#include <linux/pm.h>
41#include <linux/cpufreq.h>
42#include <linux/cpu.h>
43#include <linux/proc_fs.h>
44#include <linux/seq_file.h>
45#include <linux/dmi.h> 10#include <linux/dmi.h>
46#include <linux/moduleparam.h>
47#include <linux/cpuidle.h>
48 11
49#include <asm/io.h>
50#include <asm/system.h>
51#include <asm/cpu.h>
52#include <asm/delay.h>
53#include <asm/uaccess.h>
54#include <asm/processor.h>
55#include <asm/smp.h>
56#include <asm/acpi.h>
57
58#include <acpi/acpi_bus.h>
59#include <acpi/acpi_drivers.h> 12#include <acpi/acpi_drivers.h>
60#include <acpi/processor.h> 13#include <acpi/processor.h>
61 14
62#define PREFIX "ACPI: " 15#include "internal.h"
63
64#define ACPI_PROCESSOR_CLASS "processor"
65#define ACPI_PROCESSOR_DEVICE_NAME "Processor"
66#define ACPI_PROCESSOR_FILE_INFO "info"
67#define ACPI_PROCESSOR_FILE_THROTTLING "throttling"
68#define ACPI_PROCESSOR_FILE_LIMIT "limit"
69#define ACPI_PROCESSOR_NOTIFY_PERFORMANCE 0x80
70#define ACPI_PROCESSOR_NOTIFY_POWER 0x81
71#define ACPI_PROCESSOR_NOTIFY_THROTTLING 0x82
72
73#define ACPI_PROCESSOR_LIMIT_USER 0
74#define ACPI_PROCESSOR_LIMIT_THERMAL 1
75 16
17#define PREFIX "ACPI: "
76#define _COMPONENT ACPI_PROCESSOR_COMPONENT 18#define _COMPONENT ACPI_PROCESSOR_COMPONENT
77ACPI_MODULE_NAME("processor_core"); 19ACPI_MODULE_NAME("processor_core");
78 20
79MODULE_AUTHOR("Paul Diefenbaugh"); 21static int set_no_mwait(const struct dmi_system_id *id)
80MODULE_DESCRIPTION("ACPI Processor Driver");
81MODULE_LICENSE("GPL");
82
83static int acpi_processor_add(struct acpi_device *device);
84static int acpi_processor_remove(struct acpi_device *device, int type);
85#ifdef CONFIG_ACPI_PROCFS
86static int acpi_processor_info_open_fs(struct inode *inode, struct file *file);
87#endif
88static void acpi_processor_notify(struct acpi_device *device, u32 event);
89static acpi_status acpi_processor_hotadd_init(acpi_handle handle, int *p_cpu);
90static int acpi_processor_handle_eject(struct acpi_processor *pr);
91
92
93static const struct acpi_device_id processor_device_ids[] = {
94 {ACPI_PROCESSOR_OBJECT_HID, 0},
95 {"ACPI0007", 0},
96 {"", 0},
97};
98MODULE_DEVICE_TABLE(acpi, processor_device_ids);
99
100static struct acpi_driver acpi_processor_driver = {
101 .name = "processor",
102 .class = ACPI_PROCESSOR_CLASS,
103 .ids = processor_device_ids,
104 .ops = {
105 .add = acpi_processor_add,
106 .remove = acpi_processor_remove,
107 .suspend = acpi_processor_suspend,
108 .resume = acpi_processor_resume,
109 .notify = acpi_processor_notify,
110 },
111};
112
113#define INSTALL_NOTIFY_HANDLER 1
114#define UNINSTALL_NOTIFY_HANDLER 2
115#ifdef CONFIG_ACPI_PROCFS
116static const struct file_operations acpi_processor_info_fops = {
117 .owner = THIS_MODULE,
118 .open = acpi_processor_info_open_fs,
119 .read = seq_read,
120 .llseek = seq_lseek,
121 .release = single_release,
122};
123#endif
124
125DEFINE_PER_CPU(struct acpi_processor *, processors);
126EXPORT_PER_CPU_SYMBOL(processors);
127
128struct acpi_processor_errata errata __read_mostly;
129
130/* --------------------------------------------------------------------------
131 Errata Handling
132 -------------------------------------------------------------------------- */
133
134static int acpi_processor_errata_piix4(struct pci_dev *dev)
135{ 22{
136 u8 value1 = 0; 23 printk(KERN_NOTICE PREFIX "%s detected - "
137 u8 value2 = 0; 24 "disabling mwait for CPU C-states\n", id->ident);
138 25 idle_nomwait = 1;
139
140 if (!dev)
141 return -EINVAL;
142
143 /*
144 * Note that 'dev' references the PIIX4 ACPI Controller.
145 */
146
147 switch (dev->revision) {
148 case 0:
149 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found PIIX4 A-step\n"));
150 break;
151 case 1:
152 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found PIIX4 B-step\n"));
153 break;
154 case 2:
155 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found PIIX4E\n"));
156 break;
157 case 3:
158 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found PIIX4M\n"));
159 break;
160 default:
161 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found unknown PIIX4\n"));
162 break;
163 }
164
165 switch (dev->revision) {
166
167 case 0: /* PIIX4 A-step */
168 case 1: /* PIIX4 B-step */
169 /*
170 * See specification changes #13 ("Manual Throttle Duty Cycle")
171 * and #14 ("Enabling and Disabling Manual Throttle"), plus
172 * erratum #5 ("STPCLK# Deassertion Time") from the January
173 * 2002 PIIX4 specification update. Applies to only older
174 * PIIX4 models.
175 */
176 errata.piix4.throttle = 1;
177
178 case 2: /* PIIX4E */
179 case 3: /* PIIX4M */
180 /*
181 * See erratum #18 ("C3 Power State/BMIDE and Type-F DMA
182 * Livelock") from the January 2002 PIIX4 specification update.
183 * Applies to all PIIX4 models.
184 */
185
186 /*
187 * BM-IDE
188 * ------
189 * Find the PIIX4 IDE Controller and get the Bus Master IDE
190 * Status register address. We'll use this later to read
191 * each IDE controller's DMA status to make sure we catch all
192 * DMA activity.
193 */
194 dev = pci_get_subsys(PCI_VENDOR_ID_INTEL,
195 PCI_DEVICE_ID_INTEL_82371AB,
196 PCI_ANY_ID, PCI_ANY_ID, NULL);
197 if (dev) {
198 errata.piix4.bmisx = pci_resource_start(dev, 4);
199 pci_dev_put(dev);
200 }
201
202 /*
203 * Type-F DMA
204 * ----------
205 * Find the PIIX4 ISA Controller and read the Motherboard
206 * DMA controller's status to see if Type-F (Fast) DMA mode
207 * is enabled (bit 7) on either channel. Note that we'll
208 * disable C3 support if this is enabled, as some legacy
209 * devices won't operate well if fast DMA is disabled.
210 */
211 dev = pci_get_subsys(PCI_VENDOR_ID_INTEL,
212 PCI_DEVICE_ID_INTEL_82371AB_0,
213 PCI_ANY_ID, PCI_ANY_ID, NULL);
214 if (dev) {
215 pci_read_config_byte(dev, 0x76, &value1);
216 pci_read_config_byte(dev, 0x77, &value2);
217 if ((value1 & 0x80) || (value2 & 0x80))
218 errata.piix4.fdma = 1;
219 pci_dev_put(dev);
220 }
221
222 break;
223 }
224
225 if (errata.piix4.bmisx)
226 ACPI_DEBUG_PRINT((ACPI_DB_INFO,
227 "Bus master activity detection (BM-IDE) erratum enabled\n"));
228 if (errata.piix4.fdma)
229 ACPI_DEBUG_PRINT((ACPI_DB_INFO,
230 "Type-F DMA livelock erratum (C3 disabled)\n"));
231
232 return 0; 26 return 0;
233} 27}
234 28
235static int acpi_processor_errata(struct acpi_processor *pr) 29static struct dmi_system_id __cpuinitdata processor_idle_dmi_table[] = {
236{ 30 {
237 int result = 0; 31 set_no_mwait, "IFL91 board", {
238 struct pci_dev *dev = NULL; 32 DMI_MATCH(DMI_BIOS_VENDOR, "COMPAL"),
239 33 DMI_MATCH(DMI_SYS_VENDOR, "ZEPTO"),
240 34 DMI_MATCH(DMI_PRODUCT_VERSION, "3215W"),
241 if (!pr) 35 DMI_MATCH(DMI_BOARD_NAME, "IFL91") }, NULL},
242 return -EINVAL; 36 {
243 37 set_no_mwait, "Extensa 5220", {
244 /* 38 DMI_MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies LTD"),
245 * PIIX4 39 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
246 */ 40 DMI_MATCH(DMI_PRODUCT_VERSION, "0100"),
247 dev = pci_get_subsys(PCI_VENDOR_ID_INTEL, 41 DMI_MATCH(DMI_BOARD_NAME, "Columbia") }, NULL},
248 PCI_DEVICE_ID_INTEL_82371AB_3, PCI_ANY_ID, 42 {},
249 PCI_ANY_ID, NULL); 43};
250 if (dev) {
251 result = acpi_processor_errata_piix4(dev);
252 pci_dev_put(dev);
253 }
254
255 return result;
256}
257
258/* --------------------------------------------------------------------------
259 FS Interface (/proc)
260 -------------------------------------------------------------------------- */
261
262#ifdef CONFIG_ACPI_PROCFS
263static struct proc_dir_entry *acpi_processor_dir = NULL;
264
265static int acpi_processor_info_seq_show(struct seq_file *seq, void *offset)
266{
267 struct acpi_processor *pr = seq->private;
268
269
270 if (!pr)
271 goto end;
272
273 seq_printf(seq, "processor id: %d\n"
274 "acpi id: %d\n"
275 "bus mastering control: %s\n"
276 "power management: %s\n"
277 "throttling control: %s\n"
278 "limit interface: %s\n",
279 pr->id,
280 pr->acpi_id,
281 pr->flags.bm_control ? "yes" : "no",
282 pr->flags.power ? "yes" : "no",
283 pr->flags.throttling ? "yes" : "no",
284 pr->flags.limit ? "yes" : "no");
285
286 end:
287 return 0;
288}
289
290static int acpi_processor_info_open_fs(struct inode *inode, struct file *file)
291{
292 return single_open(file, acpi_processor_info_seq_show,
293 PDE(inode)->data);
294}
295
296static int __cpuinit acpi_processor_add_fs(struct acpi_device *device)
297{
298 struct proc_dir_entry *entry = NULL;
299
300
301 if (!acpi_device_dir(device)) {
302 acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device),
303 acpi_processor_dir);
304 if (!acpi_device_dir(device))
305 return -ENODEV;
306 }
307
308 /* 'info' [R] */
309 entry = proc_create_data(ACPI_PROCESSOR_FILE_INFO,
310 S_IRUGO, acpi_device_dir(device),
311 &acpi_processor_info_fops,
312 acpi_driver_data(device));
313 if (!entry)
314 return -EIO;
315
316 /* 'throttling' [R/W] */
317 entry = proc_create_data(ACPI_PROCESSOR_FILE_THROTTLING,
318 S_IFREG | S_IRUGO | S_IWUSR,
319 acpi_device_dir(device),
320 &acpi_processor_throttling_fops,
321 acpi_driver_data(device));
322 if (!entry)
323 return -EIO;
324
325 /* 'limit' [R/W] */
326 entry = proc_create_data(ACPI_PROCESSOR_FILE_LIMIT,
327 S_IFREG | S_IRUGO | S_IWUSR,
328 acpi_device_dir(device),
329 &acpi_processor_limit_fops,
330 acpi_driver_data(device));
331 if (!entry)
332 return -EIO;
333 return 0;
334}
335static int acpi_processor_remove_fs(struct acpi_device *device)
336{
337
338 if (acpi_device_dir(device)) {
339 remove_proc_entry(ACPI_PROCESSOR_FILE_INFO,
340 acpi_device_dir(device));
341 remove_proc_entry(ACPI_PROCESSOR_FILE_THROTTLING,
342 acpi_device_dir(device));
343 remove_proc_entry(ACPI_PROCESSOR_FILE_LIMIT,
344 acpi_device_dir(device));
345 remove_proc_entry(acpi_device_bid(device), acpi_processor_dir);
346 acpi_device_dir(device) = NULL;
347 }
348
349 return 0;
350}
351#else
352static inline int acpi_processor_add_fs(struct acpi_device *device)
353{
354 return 0;
355}
356static inline int acpi_processor_remove_fs(struct acpi_device *device)
357{
358 return 0;
359}
360#endif
361
362/* Use the acpiid in MADT to map cpus in case of SMP */
363
364#ifndef CONFIG_SMP
365static int get_cpu_id(acpi_handle handle, int type, u32 acpi_id) { return -1; }
366#else
367
368static struct acpi_table_madt *madt;
369 44
45#ifdef CONFIG_SMP
370static int map_lapic_id(struct acpi_subtable_header *entry, 46static int map_lapic_id(struct acpi_subtable_header *entry,
371 u32 acpi_id, int *apic_id) 47 u32 acpi_id, int *apic_id)
372{ 48{
373 struct acpi_madt_local_apic *lapic = 49 struct acpi_madt_local_apic *lapic =
374 (struct acpi_madt_local_apic *)entry; 50 (struct acpi_madt_local_apic *)entry;
375 if ((lapic->lapic_flags & ACPI_MADT_ENABLED) && 51
376 lapic->processor_id == acpi_id) { 52 if (!(lapic->lapic_flags & ACPI_MADT_ENABLED))
377 *apic_id = lapic->id; 53 return 0;
378 return 1; 54
379 } 55 if (lapic->processor_id != acpi_id)
380 return 0; 56 return 0;
57
58 *apic_id = lapic->id;
59 return 1;
381} 60}
382 61
383static int map_x2apic_id(struct acpi_subtable_header *entry, 62static int map_x2apic_id(struct acpi_subtable_header *entry,
@@ -385,22 +64,16 @@ static int map_x2apic_id(struct acpi_subtable_header *entry,
385{ 64{
386 struct acpi_madt_local_x2apic *apic = 65 struct acpi_madt_local_x2apic *apic =
387 (struct acpi_madt_local_x2apic *)entry; 66 (struct acpi_madt_local_x2apic *)entry;
388 u32 tmp = apic->local_apic_id;
389 67
390 /* Only check enabled APICs*/
391 if (!(apic->lapic_flags & ACPI_MADT_ENABLED)) 68 if (!(apic->lapic_flags & ACPI_MADT_ENABLED))
392 return 0; 69 return 0;
393 70
394 /* Device statement declaration type */ 71 if (device_declaration && (apic->uid == acpi_id)) {
395 if (device_declaration) { 72 *apic_id = apic->local_apic_id;
396 if (apic->uid == acpi_id) 73 return 1;
397 goto found;
398 } 74 }
399 75
400 return 0; 76 return 0;
401found:
402 *apic_id = tmp;
403 return 1;
404} 77}
405 78
406static int map_lsapic_id(struct acpi_subtable_header *entry, 79static int map_lsapic_id(struct acpi_subtable_header *entry,
@@ -408,35 +81,34 @@ static int map_lsapic_id(struct acpi_subtable_header *entry,
408{ 81{
409 struct acpi_madt_local_sapic *lsapic = 82 struct acpi_madt_local_sapic *lsapic =
410 (struct acpi_madt_local_sapic *)entry; 83 (struct acpi_madt_local_sapic *)entry;
411 u32 tmp = (lsapic->id << 8) | lsapic->eid;
412 84
413 /* Only check enabled APICs*/
414 if (!(lsapic->lapic_flags & ACPI_MADT_ENABLED)) 85 if (!(lsapic->lapic_flags & ACPI_MADT_ENABLED))
415 return 0; 86 return 0;
416 87
417 /* Device statement declaration type */
418 if (device_declaration) { 88 if (device_declaration) {
419 if (entry->length < 16) 89 if ((entry->length < 16) || (lsapic->uid != acpi_id))
420 printk(KERN_ERR PREFIX 90 return 0;
421 "Invalid LSAPIC with Device type processor (SAPIC ID %#x)\n", 91 } else if (lsapic->processor_id != acpi_id)
422 tmp); 92 return 0;
423 else if (lsapic->uid == acpi_id)
424 goto found;
425 /* Processor statement declaration type */
426 } else if (lsapic->processor_id == acpi_id)
427 goto found;
428 93
429 return 0; 94 *apic_id = (lsapic->id << 8) | lsapic->eid;
430found:
431 *apic_id = tmp;
432 return 1; 95 return 1;
433} 96}
434 97
435static int map_madt_entry(int type, u32 acpi_id) 98static int map_madt_entry(int type, u32 acpi_id)
436{ 99{
437 unsigned long madt_end, entry; 100 unsigned long madt_end, entry;
101 static struct acpi_table_madt *madt;
102 static int read_madt;
438 int apic_id = -1; 103 int apic_id = -1;
439 104
105 if (!read_madt) {
106 if (ACPI_FAILURE(acpi_get_table(ACPI_SIG_MADT, 0,
107 (struct acpi_table_header **)&madt)))
108 madt = NULL;
109 read_madt++;
110 }
111
440 if (!madt) 112 if (!madt)
441 return apic_id; 113 return apic_id;
442 114
@@ -496,7 +168,7 @@ exit:
496 return apic_id; 168 return apic_id;
497} 169}
498 170
499static int get_cpu_id(acpi_handle handle, int type, u32 acpi_id) 171int acpi_get_cpuid(acpi_handle handle, int type, u32 acpi_id)
500{ 172{
501 int i; 173 int i;
502 int apic_id = -1; 174 int apic_id = -1;
@@ -513,630 +185,170 @@ static int get_cpu_id(acpi_handle handle, int type, u32 acpi_id)
513 } 185 }
514 return -1; 186 return -1;
515} 187}
188EXPORT_SYMBOL_GPL(acpi_get_cpuid);
516#endif 189#endif
517 190
518/* -------------------------------------------------------------------------- 191static bool processor_physically_present(acpi_handle handle)
519 Driver Interface
520 -------------------------------------------------------------------------- */
521
522static int acpi_processor_get_info(struct acpi_device *device)
523{ 192{
524 acpi_status status = 0; 193 int cpuid, type;
194 u32 acpi_id;
195 acpi_status status;
196 acpi_object_type acpi_type;
197 unsigned long long tmp;
525 union acpi_object object = { 0 }; 198 union acpi_object object = { 0 };
526 struct acpi_buffer buffer = { sizeof(union acpi_object), &object }; 199 struct acpi_buffer buffer = { sizeof(union acpi_object), &object };
527 struct acpi_processor *pr;
528 int cpu_index, device_declaration = 0;
529 static int cpu0_initialized;
530
531 pr = acpi_driver_data(device);
532 if (!pr)
533 return -EINVAL;
534
535 if (num_online_cpus() > 1)
536 errata.smp = TRUE;
537
538 acpi_processor_errata(pr);
539
540 /*
541 * Check to see if we have bus mastering arbitration control. This
542 * is required for proper C3 usage (to maintain cache coherency).
543 */
544 if (acpi_gbl_FADT.pm2_control_block && acpi_gbl_FADT.pm2_control_length) {
545 pr->flags.bm_control = 1;
546 ACPI_DEBUG_PRINT((ACPI_DB_INFO,
547 "Bus mastering arbitration control present\n"));
548 } else
549 ACPI_DEBUG_PRINT((ACPI_DB_INFO,
550 "No bus mastering arbitration control\n"));
551
552 if (!strcmp(acpi_device_hid(device), ACPI_PROCESSOR_OBJECT_HID)) {
553 /* Declared with "Processor" statement; match ProcessorID */
554 status = acpi_evaluate_object(pr->handle, NULL, NULL, &buffer);
555 if (ACPI_FAILURE(status)) {
556 printk(KERN_ERR PREFIX "Evaluating processor object\n");
557 return -ENODEV;
558 }
559
560 /*
561 * TBD: Synch processor ID (via LAPIC/LSAPIC structures) on SMP.
562 * >>> 'acpi_get_processor_id(acpi_id, &id)' in
563 * arch/xxx/acpi.c
564 */
565 pr->acpi_id = object.processor.proc_id;
566 } else {
567 /*
568 * Declared with "Device" statement; match _UID.
569 * Note that we don't handle string _UIDs yet.
570 */
571 unsigned long long value;
572 status = acpi_evaluate_integer(pr->handle, METHOD_NAME__UID,
573 NULL, &value);
574 if (ACPI_FAILURE(status)) {
575 printk(KERN_ERR PREFIX
576 "Evaluating processor _UID [%#x]\n", status);
577 return -ENODEV;
578 }
579 device_declaration = 1;
580 pr->acpi_id = value;
581 }
582 cpu_index = get_cpu_id(pr->handle, device_declaration, pr->acpi_id);
583
584 /* Handle UP system running SMP kernel, with no LAPIC in MADT */
585 if (!cpu0_initialized && (cpu_index == -1) &&
586 (num_online_cpus() == 1)) {
587 cpu_index = 0;
588 }
589
590 cpu0_initialized = 1;
591
592 pr->id = cpu_index;
593
594 /*
595 * Extra Processor objects may be enumerated on MP systems with
596 * less than the max # of CPUs. They should be ignored _iff
597 * they are physically not present.
598 */
599 if (pr->id == -1) {
600 if (ACPI_FAILURE
601 (acpi_processor_hotadd_init(pr->handle, &pr->id))) {
602 return -ENODEV;
603 }
604 }
605 /*
606 * On some boxes several processors use the same processor bus id.
607 * But they are located in different scope. For example:
608 * \_SB.SCK0.CPU0
609 * \_SB.SCK1.CPU0
610 * Rename the processor device bus id. And the new bus id will be
611 * generated as the following format:
612 * CPU+CPU ID.
613 */
614 sprintf(acpi_device_bid(device), "CPU%X", pr->id);
615 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Processor [%d:%d]\n", pr->id,
616 pr->acpi_id));
617
618 if (!object.processor.pblk_address)
619 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "No PBLK (NULL address)\n"));
620 else if (object.processor.pblk_length != 6)
621 printk(KERN_ERR PREFIX "Invalid PBLK length [%d]\n",
622 object.processor.pblk_length);
623 else {
624 pr->throttling.address = object.processor.pblk_address;
625 pr->throttling.duty_offset = acpi_gbl_FADT.duty_offset;
626 pr->throttling.duty_width = acpi_gbl_FADT.duty_width;
627
628 pr->pblk = object.processor.pblk_address;
629
630 /*
631 * We don't care about error returns - we just try to mark
632 * these reserved so that nobody else is confused into thinking
633 * that this region might be unused..
634 *
635 * (In particular, allocating the IO range for Cardbus)
636 */
637 request_region(pr->throttling.address, 6, "ACPI CPU throttle");
638 }
639
640 /*
641 * If ACPI describes a slot number for this CPU, we can use it
642 * ensure we get the right value in the "physical id" field
643 * of /proc/cpuinfo
644 */
645 status = acpi_evaluate_object(pr->handle, "_SUN", NULL, &buffer);
646 if (ACPI_SUCCESS(status))
647 arch_fix_phys_package_id(pr->id, object.integer.value);
648
649 return 0;
650}
651
652static DEFINE_PER_CPU(void *, processor_device_array);
653
654static void acpi_processor_notify(struct acpi_device *device, u32 event)
655{
656 struct acpi_processor *pr = acpi_driver_data(device);
657 int saved;
658
659 if (!pr)
660 return;
661 200
662 switch (event) { 201 status = acpi_get_type(handle, &acpi_type);
663 case ACPI_PROCESSOR_NOTIFY_PERFORMANCE: 202 if (ACPI_FAILURE(status))
664 saved = pr->performance_platform_limit; 203 return false;
665 acpi_processor_ppc_has_changed(pr, 1); 204
666 if (saved == pr->performance_platform_limit) 205 switch (acpi_type) {
667 break; 206 case ACPI_TYPE_PROCESSOR:
668 acpi_bus_generate_proc_event(device, event, 207 status = acpi_evaluate_object(handle, NULL, NULL, &buffer);
669 pr->performance_platform_limit); 208 if (ACPI_FAILURE(status))
670 acpi_bus_generate_netlink_event(device->pnp.device_class, 209 return false;
671 dev_name(&device->dev), event, 210 acpi_id = object.processor.proc_id;
672 pr->performance_platform_limit);
673 break; 211 break;
674 case ACPI_PROCESSOR_NOTIFY_POWER: 212 case ACPI_TYPE_DEVICE:
675 acpi_processor_cst_has_changed(pr); 213 status = acpi_evaluate_integer(handle, "_UID", NULL, &tmp);
676 acpi_bus_generate_proc_event(device, event, 0); 214 if (ACPI_FAILURE(status))
677 acpi_bus_generate_netlink_event(device->pnp.device_class, 215 return false;
678 dev_name(&device->dev), event, 0); 216 acpi_id = tmp;
679 break; 217 break;
680 case ACPI_PROCESSOR_NOTIFY_THROTTLING:
681 acpi_processor_tstate_has_changed(pr);
682 acpi_bus_generate_proc_event(device, event, 0);
683 acpi_bus_generate_netlink_event(device->pnp.device_class,
684 dev_name(&device->dev), event, 0);
685 default: 218 default:
686 ACPI_DEBUG_PRINT((ACPI_DB_INFO, 219 return false;
687 "Unsupported event [0x%x]\n", event));
688 break;
689 } 220 }
690 221
691 return; 222 type = (acpi_type == ACPI_TYPE_DEVICE) ? 1 : 0;
692} 223 cpuid = acpi_get_cpuid(handle, type, acpi_id);
693 224
694static int acpi_cpu_soft_notify(struct notifier_block *nfb, 225 if (cpuid == -1)
695 unsigned long action, void *hcpu) 226 return false;
696{
697 unsigned int cpu = (unsigned long)hcpu;
698 struct acpi_processor *pr = per_cpu(processors, cpu);
699 227
700 if (action == CPU_ONLINE && pr) { 228 return true;
701 acpi_processor_ppc_has_changed(pr, 0);
702 acpi_processor_cst_has_changed(pr);
703 acpi_processor_tstate_has_changed(pr);
704 }
705 return NOTIFY_OK;
706} 229}
707 230
708static struct notifier_block acpi_cpu_notifier = 231static void acpi_set_pdc_bits(u32 *buf)
709{ 232{
710 .notifier_call = acpi_cpu_soft_notify, 233 buf[0] = ACPI_PDC_REVISION_ID;
711}; 234 buf[1] = 1;
712
713static int __cpuinit acpi_processor_add(struct acpi_device *device)
714{
715 struct acpi_processor *pr = NULL;
716 int result = 0;
717 struct sys_device *sysdev;
718
719 pr = kzalloc(sizeof(struct acpi_processor), GFP_KERNEL);
720 if (!pr)
721 return -ENOMEM;
722
723 if (!zalloc_cpumask_var(&pr->throttling.shared_cpu_map, GFP_KERNEL)) {
724 kfree(pr);
725 return -ENOMEM;
726 }
727
728 pr->handle = device->handle;
729 strcpy(acpi_device_name(device), ACPI_PROCESSOR_DEVICE_NAME);
730 strcpy(acpi_device_class(device), ACPI_PROCESSOR_CLASS);
731 device->driver_data = pr;
732
733 result = acpi_processor_get_info(device);
734 if (result) {
735 /* Processor is physically not present */
736 return 0;
737 }
738
739 BUG_ON((pr->id >= nr_cpu_ids) || (pr->id < 0));
740
741 /*
742 * Buggy BIOS check
743 * ACPI id of processors can be reported wrongly by the BIOS.
744 * Don't trust it blindly
745 */
746 if (per_cpu(processor_device_array, pr->id) != NULL &&
747 per_cpu(processor_device_array, pr->id) != device) {
748 printk(KERN_WARNING "BIOS reported wrong ACPI id "
749 "for the processor\n");
750 result = -ENODEV;
751 goto err_free_cpumask;
752 }
753 per_cpu(processor_device_array, pr->id) = device;
754 235
755 per_cpu(processors, pr->id) = pr; 236 /* Enable coordination with firmware's _TSD info */
237 buf[2] = ACPI_PDC_SMP_T_SWCOORD;
756 238
757 result = acpi_processor_add_fs(device); 239 /* Twiddle arch-specific bits needed for _PDC */
758 if (result) 240 arch_acpi_set_pdc_bits(buf);
759 goto err_free_cpumask;
760
761 sysdev = get_cpu_sysdev(pr->id);
762 if (sysfs_create_link(&device->dev.kobj, &sysdev->kobj, "sysdev")) {
763 result = -EFAULT;
764 goto err_remove_fs;
765 }
766
767 /* _PDC call should be done before doing anything else (if reqd.). */
768 acpi_processor_set_pdc(pr->handle);
769
770#ifdef CONFIG_CPU_FREQ
771 acpi_processor_ppc_has_changed(pr, 0);
772#endif
773 acpi_processor_get_throttling_info(pr);
774 acpi_processor_get_limit_info(pr);
775
776
777 acpi_processor_power_init(pr, device);
778
779 pr->cdev = thermal_cooling_device_register("Processor", device,
780 &processor_cooling_ops);
781 if (IS_ERR(pr->cdev)) {
782 result = PTR_ERR(pr->cdev);
783 goto err_power_exit;
784 }
785
786 dev_dbg(&device->dev, "registered as cooling_device%d\n",
787 pr->cdev->id);
788
789 result = sysfs_create_link(&device->dev.kobj,
790 &pr->cdev->device.kobj,
791 "thermal_cooling");
792 if (result) {
793 printk(KERN_ERR PREFIX "Create sysfs link\n");
794 goto err_thermal_unregister;
795 }
796 result = sysfs_create_link(&pr->cdev->device.kobj,
797 &device->dev.kobj,
798 "device");
799 if (result) {
800 printk(KERN_ERR PREFIX "Create sysfs link\n");
801 goto err_remove_sysfs;
802 }
803
804 return 0;
805
806err_remove_sysfs:
807 sysfs_remove_link(&device->dev.kobj, "thermal_cooling");
808err_thermal_unregister:
809 thermal_cooling_device_unregister(pr->cdev);
810err_power_exit:
811 acpi_processor_power_exit(pr, device);
812err_remove_fs:
813 acpi_processor_remove_fs(device);
814err_free_cpumask:
815 free_cpumask_var(pr->throttling.shared_cpu_map);
816
817 return result;
818} 241}
819 242
820static int acpi_processor_remove(struct acpi_device *device, int type) 243static struct acpi_object_list *acpi_processor_alloc_pdc(void)
821{ 244{
822 struct acpi_processor *pr = NULL; 245 struct acpi_object_list *obj_list;
823 246 union acpi_object *obj;
824 247 u32 *buf;
825 if (!device || !acpi_driver_data(device))
826 return -EINVAL;
827
828 pr = acpi_driver_data(device);
829
830 if (pr->id >= nr_cpu_ids)
831 goto free;
832 248
833 if (type == ACPI_BUS_REMOVAL_EJECT) { 249 /* allocate and initialize pdc. It will be used later. */
834 if (acpi_processor_handle_eject(pr)) 250 obj_list = kmalloc(sizeof(struct acpi_object_list), GFP_KERNEL);
835 return -EINVAL; 251 if (!obj_list) {
252 printk(KERN_ERR "Memory allocation error\n");
253 return NULL;
836 } 254 }
837 255
838 acpi_processor_power_exit(pr, device); 256 obj = kmalloc(sizeof(union acpi_object), GFP_KERNEL);
839 257 if (!obj) {
840 sysfs_remove_link(&device->dev.kobj, "sysdev"); 258 printk(KERN_ERR "Memory allocation error\n");
841 259 kfree(obj_list);
842 acpi_processor_remove_fs(device); 260 return NULL;
843
844 if (pr->cdev) {
845 sysfs_remove_link(&device->dev.kobj, "thermal_cooling");
846 sysfs_remove_link(&pr->cdev->device.kobj, "device");
847 thermal_cooling_device_unregister(pr->cdev);
848 pr->cdev = NULL;
849 } 261 }
850 262
851 per_cpu(processors, pr->id) = NULL; 263 buf = kmalloc(12, GFP_KERNEL);
852 per_cpu(processor_device_array, pr->id) = NULL; 264 if (!buf) {
853 265 printk(KERN_ERR "Memory allocation error\n");
854free: 266 kfree(obj);
855 free_cpumask_var(pr->throttling.shared_cpu_map); 267 kfree(obj_list);
856 kfree(pr); 268 return NULL;
857
858 return 0;
859}
860
861#ifdef CONFIG_ACPI_HOTPLUG_CPU
862/****************************************************************************
863 * Acpi processor hotplug support *
864 ****************************************************************************/
865
866static int is_processor_present(acpi_handle handle)
867{
868 acpi_status status;
869 unsigned long long sta = 0;
870
871
872 status = acpi_evaluate_integer(handle, "_STA", NULL, &sta);
873
874 if (ACPI_SUCCESS(status) && (sta & ACPI_STA_DEVICE_PRESENT))
875 return 1;
876
877 /*
878 * _STA is mandatory for a processor that supports hot plug
879 */
880 if (status == AE_NOT_FOUND)
881 ACPI_DEBUG_PRINT((ACPI_DB_INFO,
882 "Processor does not support hot plug\n"));
883 else
884 ACPI_EXCEPTION((AE_INFO, status,
885 "Processor Device is not present"));
886 return 0;
887}
888
889static
890int acpi_processor_device_add(acpi_handle handle, struct acpi_device **device)
891{
892 acpi_handle phandle;
893 struct acpi_device *pdev;
894
895
896 if (acpi_get_parent(handle, &phandle)) {
897 return -ENODEV;
898 } 269 }
899 270
900 if (acpi_bus_get_device(phandle, &pdev)) { 271 acpi_set_pdc_bits(buf);
901 return -ENODEV;
902 }
903 272
904 if (acpi_bus_add(device, pdev, handle, ACPI_BUS_TYPE_PROCESSOR)) { 273 obj->type = ACPI_TYPE_BUFFER;
905 return -ENODEV; 274 obj->buffer.length = 12;
906 } 275 obj->buffer.pointer = (u8 *) buf;
276 obj_list->count = 1;
277 obj_list->pointer = obj;
907 278
908 return 0; 279 return obj_list;
909} 280}
910 281
911static void __ref acpi_processor_hotplug_notify(acpi_handle handle, 282/*
912 u32 event, void *data) 283 * _PDC is required for a BIOS-OS handshake for most of the newer
284 * ACPI processor features.
285 */
286static int
287acpi_processor_eval_pdc(acpi_handle handle, struct acpi_object_list *pdc_in)
913{ 288{
914 struct acpi_processor *pr; 289 acpi_status status = AE_OK;
915 struct acpi_device *device = NULL;
916 int result;
917
918 290
919 switch (event) { 291 if (idle_nomwait) {
920 case ACPI_NOTIFY_BUS_CHECK: 292 /*
921 case ACPI_NOTIFY_DEVICE_CHECK: 293 * If mwait is disabled for CPU C-states, the C2C3_FFH access
922 ACPI_DEBUG_PRINT((ACPI_DB_INFO, 294 * mode will be disabled in the parameter of _PDC object.
923 "Processor driver received %s event\n", 295 * Of course C1_FFH access mode will also be disabled.
924 (event == ACPI_NOTIFY_BUS_CHECK) ? 296 */
925 "ACPI_NOTIFY_BUS_CHECK" : "ACPI_NOTIFY_DEVICE_CHECK")); 297 union acpi_object *obj;
926 298 u32 *buffer = NULL;
927 if (!is_processor_present(handle))
928 break;
929 299
930 if (acpi_bus_get_device(handle, &device)) { 300 obj = pdc_in->pointer;
931 result = acpi_processor_device_add(handle, &device); 301 buffer = (u32 *)(obj->buffer.pointer);
932 if (result) 302 buffer[2] &= ~(ACPI_PDC_C_C2C3_FFH | ACPI_PDC_C_C1_FFH);
933 printk(KERN_ERR PREFIX
934 "Unable to add the device\n");
935 break;
936 }
937 break;
938 case ACPI_NOTIFY_EJECT_REQUEST:
939 ACPI_DEBUG_PRINT((ACPI_DB_INFO,
940 "received ACPI_NOTIFY_EJECT_REQUEST\n"));
941 303
942 if (acpi_bus_get_device(handle, &device)) {
943 printk(KERN_ERR PREFIX
944 "Device don't exist, dropping EJECT\n");
945 break;
946 }
947 pr = acpi_driver_data(device);
948 if (!pr) {
949 printk(KERN_ERR PREFIX
950 "Driver data is NULL, dropping EJECT\n");
951 return;
952 }
953 break;
954 default:
955 ACPI_DEBUG_PRINT((ACPI_DB_INFO,
956 "Unsupported event [0x%x]\n", event));
957 break;
958 } 304 }
305 status = acpi_evaluate_object(handle, "_PDC", pdc_in, NULL);
959 306
960 return;
961}
962
963static acpi_status
964processor_walk_namespace_cb(acpi_handle handle,
965 u32 lvl, void *context, void **rv)
966{
967 acpi_status status;
968 int *action = context;
969 acpi_object_type type = 0;
970
971 status = acpi_get_type(handle, &type);
972 if (ACPI_FAILURE(status)) 307 if (ACPI_FAILURE(status))
973 return (AE_OK); 308 ACPI_DEBUG_PRINT((ACPI_DB_INFO,
974 309 "Could not evaluate _PDC, using legacy perf. control.\n"));
975 if (type != ACPI_TYPE_PROCESSOR)
976 return (AE_OK);
977
978 switch (*action) {
979 case INSTALL_NOTIFY_HANDLER:
980 acpi_install_notify_handler(handle,
981 ACPI_SYSTEM_NOTIFY,
982 acpi_processor_hotplug_notify,
983 NULL);
984 break;
985 case UNINSTALL_NOTIFY_HANDLER:
986 acpi_remove_notify_handler(handle,
987 ACPI_SYSTEM_NOTIFY,
988 acpi_processor_hotplug_notify);
989 break;
990 default:
991 break;
992 }
993 310
994 return (AE_OK); 311 return status;
995} 312}
996 313
997static acpi_status acpi_processor_hotadd_init(acpi_handle handle, int *p_cpu) 314void acpi_processor_set_pdc(acpi_handle handle)
998{ 315{
316 struct acpi_object_list *obj_list;
999 317
1000 if (!is_processor_present(handle)) { 318 if (arch_has_acpi_pdc() == false)
1001 return AE_ERROR; 319 return;
1002 }
1003 320
1004 if (acpi_map_lsapic(handle, p_cpu)) 321 obj_list = acpi_processor_alloc_pdc();
1005 return AE_ERROR; 322 if (!obj_list)
323 return;
1006 324
1007 if (arch_register_cpu(*p_cpu)) { 325 acpi_processor_eval_pdc(handle, obj_list);
1008 acpi_unmap_lsapic(*p_cpu);
1009 return AE_ERROR;
1010 }
1011 326
1012 return AE_OK; 327 kfree(obj_list->pointer->buffer.pointer);
328 kfree(obj_list->pointer);
329 kfree(obj_list);
1013} 330}
331EXPORT_SYMBOL_GPL(acpi_processor_set_pdc);
1014 332
1015static int acpi_processor_handle_eject(struct acpi_processor *pr) 333static acpi_status
334early_init_pdc(acpi_handle handle, u32 lvl, void *context, void **rv)
1016{ 335{
1017 if (cpu_online(pr->id)) 336 if (processor_physically_present(handle) == false)
1018 cpu_down(pr->id); 337 return AE_OK;
1019 338
1020 arch_unregister_cpu(pr->id); 339 acpi_processor_set_pdc(handle);
1021 acpi_unmap_lsapic(pr->id); 340 return AE_OK;
1022 return (0);
1023}
1024#else
1025static acpi_status acpi_processor_hotadd_init(acpi_handle handle, int *p_cpu)
1026{
1027 return AE_ERROR;
1028}
1029static int acpi_processor_handle_eject(struct acpi_processor *pr)
1030{
1031 return (-EINVAL);
1032} 341}
1033#endif
1034 342
1035static 343void __init acpi_early_processor_set_pdc(void)
1036void acpi_processor_install_hotplug_notify(void)
1037{ 344{
1038#ifdef CONFIG_ACPI_HOTPLUG_CPU 345 /*
1039 int action = INSTALL_NOTIFY_HANDLER; 346 * Check whether the system is DMI table. If yes, OSPM
1040 acpi_walk_namespace(ACPI_TYPE_PROCESSOR, 347 * should not use mwait for CPU-states.
1041 ACPI_ROOT_OBJECT, 348 */
1042 ACPI_UINT32_MAX, 349 dmi_check_system(processor_idle_dmi_table);
1043 processor_walk_namespace_cb, NULL, &action, NULL);
1044#endif
1045 register_hotcpu_notifier(&acpi_cpu_notifier);
1046}
1047 350
1048static 351 acpi_walk_namespace(ACPI_TYPE_PROCESSOR, ACPI_ROOT_OBJECT,
1049void acpi_processor_uninstall_hotplug_notify(void)
1050{
1051#ifdef CONFIG_ACPI_HOTPLUG_CPU
1052 int action = UNINSTALL_NOTIFY_HANDLER;
1053 acpi_walk_namespace(ACPI_TYPE_PROCESSOR,
1054 ACPI_ROOT_OBJECT,
1055 ACPI_UINT32_MAX, 352 ACPI_UINT32_MAX,
1056 processor_walk_namespace_cb, NULL, &action, NULL); 353 early_init_pdc, NULL, NULL, NULL);
1057#endif
1058 unregister_hotcpu_notifier(&acpi_cpu_notifier);
1059} 354}
1060
1061/*
1062 * We keep the driver loaded even when ACPI is not running.
1063 * This is needed for the powernow-k8 driver, that works even without
1064 * ACPI, but needs symbols from this driver
1065 */
1066
1067static int __init acpi_processor_init(void)
1068{
1069 int result = 0;
1070
1071 if (acpi_disabled)
1072 return 0;
1073
1074 memset(&errata, 0, sizeof(errata));
1075
1076#ifdef CONFIG_SMP
1077 if (ACPI_FAILURE(acpi_get_table(ACPI_SIG_MADT, 0,
1078 (struct acpi_table_header **)&madt)))
1079 madt = NULL;
1080#endif
1081#ifdef CONFIG_ACPI_PROCFS
1082 acpi_processor_dir = proc_mkdir(ACPI_PROCESSOR_CLASS, acpi_root_dir);
1083 if (!acpi_processor_dir)
1084 return -ENOMEM;
1085#endif
1086 result = cpuidle_register_driver(&acpi_idle_driver);
1087 if (result < 0)
1088 goto out_proc;
1089
1090 result = acpi_bus_register_driver(&acpi_processor_driver);
1091 if (result < 0)
1092 goto out_cpuidle;
1093
1094 acpi_processor_install_hotplug_notify();
1095
1096 acpi_thermal_cpufreq_init();
1097
1098 acpi_processor_ppc_init();
1099
1100 acpi_processor_throttling_init();
1101
1102 return 0;
1103
1104out_cpuidle:
1105 cpuidle_unregister_driver(&acpi_idle_driver);
1106
1107out_proc:
1108#ifdef CONFIG_ACPI_PROCFS
1109 remove_proc_entry(ACPI_PROCESSOR_CLASS, acpi_root_dir);
1110#endif
1111
1112 return result;
1113}
1114
1115static void __exit acpi_processor_exit(void)
1116{
1117 if (acpi_disabled)
1118 return;
1119
1120 acpi_processor_ppc_exit();
1121
1122 acpi_thermal_cpufreq_exit();
1123
1124 acpi_processor_uninstall_hotplug_notify();
1125
1126 acpi_bus_unregister_driver(&acpi_processor_driver);
1127
1128 cpuidle_unregister_driver(&acpi_idle_driver);
1129
1130#ifdef CONFIG_ACPI_PROCFS
1131 remove_proc_entry(ACPI_PROCESSOR_CLASS, acpi_root_dir);
1132#endif
1133
1134 return;
1135}
1136
1137module_init(acpi_processor_init);
1138module_exit(acpi_processor_exit);
1139
1140EXPORT_SYMBOL(acpi_processor_set_thermal_limit);
1141
1142MODULE_ALIAS("processor");
diff --git a/drivers/acpi/processor_driver.c b/drivers/acpi/processor_driver.c
new file mode 100644
index 000000000000..b5658cdce27f
--- /dev/null
+++ b/drivers/acpi/processor_driver.c
@@ -0,0 +1,978 @@
1/*
2 * acpi_processor.c - ACPI Processor Driver ($Revision: 71 $)
3 *
4 * Copyright (C) 2001, 2002 Andy Grover <andrew.grover@intel.com>
5 * Copyright (C) 2001, 2002 Paul Diefenbaugh <paul.s.diefenbaugh@intel.com>
6 * Copyright (C) 2004 Dominik Brodowski <linux@brodo.de>
7 * Copyright (C) 2004 Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
8 * - Added processor hotplug support
9 *
10 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
11 *
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License as published by
14 * the Free Software Foundation; either version 2 of the License, or (at
15 * your option) any later version.
16 *
17 * This program is distributed in the hope that it will be useful, but
18 * WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20 * General Public License for more details.
21 *
22 * You should have received a copy of the GNU General Public License along
23 * with this program; if not, write to the Free Software Foundation, Inc.,
24 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
25 *
26 * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
27 * TBD:
28 * 1. Make # power states dynamic.
29 * 2. Support duty_cycle values that span bit 4.
30 * 3. Optimize by having scheduler determine business instead of
31 * having us try to calculate it here.
32 * 4. Need C1 timing -- must modify kernel (IRQ handler) to get this.
33 */
34
35#include <linux/kernel.h>
36#include <linux/module.h>
37#include <linux/init.h>
38#include <linux/types.h>
39#include <linux/pci.h>
40#include <linux/pm.h>
41#include <linux/cpufreq.h>
42#include <linux/cpu.h>
43#include <linux/proc_fs.h>
44#include <linux/seq_file.h>
45#include <linux/dmi.h>
46#include <linux/moduleparam.h>
47#include <linux/cpuidle.h>
48
49#include <asm/io.h>
50#include <asm/system.h>
51#include <asm/cpu.h>
52#include <asm/delay.h>
53#include <asm/uaccess.h>
54#include <asm/processor.h>
55#include <asm/smp.h>
56#include <asm/acpi.h>
57
58#include <acpi/acpi_bus.h>
59#include <acpi/acpi_drivers.h>
60#include <acpi/processor.h>
61
62#define PREFIX "ACPI: "
63
64#define ACPI_PROCESSOR_CLASS "processor"
65#define ACPI_PROCESSOR_DEVICE_NAME "Processor"
66#define ACPI_PROCESSOR_FILE_INFO "info"
67#define ACPI_PROCESSOR_FILE_THROTTLING "throttling"
68#define ACPI_PROCESSOR_FILE_LIMIT "limit"
69#define ACPI_PROCESSOR_NOTIFY_PERFORMANCE 0x80
70#define ACPI_PROCESSOR_NOTIFY_POWER 0x81
71#define ACPI_PROCESSOR_NOTIFY_THROTTLING 0x82
72
73#define ACPI_PROCESSOR_LIMIT_USER 0
74#define ACPI_PROCESSOR_LIMIT_THERMAL 1
75
76#define _COMPONENT ACPI_PROCESSOR_COMPONENT
77ACPI_MODULE_NAME("processor_driver");
78
79MODULE_AUTHOR("Paul Diefenbaugh");
80MODULE_DESCRIPTION("ACPI Processor Driver");
81MODULE_LICENSE("GPL");
82
83static int acpi_processor_add(struct acpi_device *device);
84static int acpi_processor_remove(struct acpi_device *device, int type);
85#ifdef CONFIG_ACPI_PROCFS
86static int acpi_processor_info_open_fs(struct inode *inode, struct file *file);
87#endif
88static void acpi_processor_notify(struct acpi_device *device, u32 event);
89static acpi_status acpi_processor_hotadd_init(acpi_handle handle, int *p_cpu);
90static int acpi_processor_handle_eject(struct acpi_processor *pr);
91
92
93static const struct acpi_device_id processor_device_ids[] = {
94 {ACPI_PROCESSOR_OBJECT_HID, 0},
95 {"ACPI0007", 0},
96 {"", 0},
97};
98MODULE_DEVICE_TABLE(acpi, processor_device_ids);
99
100static struct acpi_driver acpi_processor_driver = {
101 .name = "processor",
102 .class = ACPI_PROCESSOR_CLASS,
103 .ids = processor_device_ids,
104 .ops = {
105 .add = acpi_processor_add,
106 .remove = acpi_processor_remove,
107 .suspend = acpi_processor_suspend,
108 .resume = acpi_processor_resume,
109 .notify = acpi_processor_notify,
110 },
111};
112
113#define INSTALL_NOTIFY_HANDLER 1
114#define UNINSTALL_NOTIFY_HANDLER 2
115#ifdef CONFIG_ACPI_PROCFS
116static const struct file_operations acpi_processor_info_fops = {
117 .owner = THIS_MODULE,
118 .open = acpi_processor_info_open_fs,
119 .read = seq_read,
120 .llseek = seq_lseek,
121 .release = single_release,
122};
123#endif
124
125DEFINE_PER_CPU(struct acpi_processor *, processors);
126EXPORT_PER_CPU_SYMBOL(processors);
127
128struct acpi_processor_errata errata __read_mostly;
129
130/* --------------------------------------------------------------------------
131 Errata Handling
132 -------------------------------------------------------------------------- */
133
134static int acpi_processor_errata_piix4(struct pci_dev *dev)
135{
136 u8 value1 = 0;
137 u8 value2 = 0;
138
139
140 if (!dev)
141 return -EINVAL;
142
143 /*
144 * Note that 'dev' references the PIIX4 ACPI Controller.
145 */
146
147 switch (dev->revision) {
148 case 0:
149 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found PIIX4 A-step\n"));
150 break;
151 case 1:
152 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found PIIX4 B-step\n"));
153 break;
154 case 2:
155 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found PIIX4E\n"));
156 break;
157 case 3:
158 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found PIIX4M\n"));
159 break;
160 default:
161 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Found unknown PIIX4\n"));
162 break;
163 }
164
165 switch (dev->revision) {
166
167 case 0: /* PIIX4 A-step */
168 case 1: /* PIIX4 B-step */
169 /*
170 * See specification changes #13 ("Manual Throttle Duty Cycle")
171 * and #14 ("Enabling and Disabling Manual Throttle"), plus
172 * erratum #5 ("STPCLK# Deassertion Time") from the January
173 * 2002 PIIX4 specification update. Applies to only older
174 * PIIX4 models.
175 */
176 errata.piix4.throttle = 1;
177
178 case 2: /* PIIX4E */
179 case 3: /* PIIX4M */
180 /*
181 * See erratum #18 ("C3 Power State/BMIDE and Type-F DMA
182 * Livelock") from the January 2002 PIIX4 specification update.
183 * Applies to all PIIX4 models.
184 */
185
186 /*
187 * BM-IDE
188 * ------
189 * Find the PIIX4 IDE Controller and get the Bus Master IDE
190 * Status register address. We'll use this later to read
191 * each IDE controller's DMA status to make sure we catch all
192 * DMA activity.
193 */
194 dev = pci_get_subsys(PCI_VENDOR_ID_INTEL,
195 PCI_DEVICE_ID_INTEL_82371AB,
196 PCI_ANY_ID, PCI_ANY_ID, NULL);
197 if (dev) {
198 errata.piix4.bmisx = pci_resource_start(dev, 4);
199 pci_dev_put(dev);
200 }
201
202 /*
203 * Type-F DMA
204 * ----------
205 * Find the PIIX4 ISA Controller and read the Motherboard
206 * DMA controller's status to see if Type-F (Fast) DMA mode
207 * is enabled (bit 7) on either channel. Note that we'll
208 * disable C3 support if this is enabled, as some legacy
209 * devices won't operate well if fast DMA is disabled.
210 */
211 dev = pci_get_subsys(PCI_VENDOR_ID_INTEL,
212 PCI_DEVICE_ID_INTEL_82371AB_0,
213 PCI_ANY_ID, PCI_ANY_ID, NULL);
214 if (dev) {
215 pci_read_config_byte(dev, 0x76, &value1);
216 pci_read_config_byte(dev, 0x77, &value2);
217 if ((value1 & 0x80) || (value2 & 0x80))
218 errata.piix4.fdma = 1;
219 pci_dev_put(dev);
220 }
221
222 break;
223 }
224
225 if (errata.piix4.bmisx)
226 ACPI_DEBUG_PRINT((ACPI_DB_INFO,
227 "Bus master activity detection (BM-IDE) erratum enabled\n"));
228 if (errata.piix4.fdma)
229 ACPI_DEBUG_PRINT((ACPI_DB_INFO,
230 "Type-F DMA livelock erratum (C3 disabled)\n"));
231
232 return 0;
233}
234
235static int acpi_processor_errata(struct acpi_processor *pr)
236{
237 int result = 0;
238 struct pci_dev *dev = NULL;
239
240
241 if (!pr)
242 return -EINVAL;
243
244 /*
245 * PIIX4
246 */
247 dev = pci_get_subsys(PCI_VENDOR_ID_INTEL,
248 PCI_DEVICE_ID_INTEL_82371AB_3, PCI_ANY_ID,
249 PCI_ANY_ID, NULL);
250 if (dev) {
251 result = acpi_processor_errata_piix4(dev);
252 pci_dev_put(dev);
253 }
254
255 return result;
256}
257
258/* --------------------------------------------------------------------------
259 FS Interface (/proc)
260 -------------------------------------------------------------------------- */
261
262#ifdef CONFIG_ACPI_PROCFS
263static struct proc_dir_entry *acpi_processor_dir = NULL;
264
265static int acpi_processor_info_seq_show(struct seq_file *seq, void *offset)
266{
267 struct acpi_processor *pr = seq->private;
268
269
270 if (!pr)
271 goto end;
272
273 seq_printf(seq, "processor id: %d\n"
274 "acpi id: %d\n"
275 "bus mastering control: %s\n"
276 "power management: %s\n"
277 "throttling control: %s\n"
278 "limit interface: %s\n",
279 pr->id,
280 pr->acpi_id,
281 pr->flags.bm_control ? "yes" : "no",
282 pr->flags.power ? "yes" : "no",
283 pr->flags.throttling ? "yes" : "no",
284 pr->flags.limit ? "yes" : "no");
285
286 end:
287 return 0;
288}
289
290static int acpi_processor_info_open_fs(struct inode *inode, struct file *file)
291{
292 return single_open(file, acpi_processor_info_seq_show,
293 PDE(inode)->data);
294}
295
296static int __cpuinit acpi_processor_add_fs(struct acpi_device *device)
297{
298 struct proc_dir_entry *entry = NULL;
299
300
301 if (!acpi_device_dir(device)) {
302 acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device),
303 acpi_processor_dir);
304 if (!acpi_device_dir(device))
305 return -ENODEV;
306 }
307
308 /* 'info' [R] */
309 entry = proc_create_data(ACPI_PROCESSOR_FILE_INFO,
310 S_IRUGO, acpi_device_dir(device),
311 &acpi_processor_info_fops,
312 acpi_driver_data(device));
313 if (!entry)
314 return -EIO;
315
316 /* 'throttling' [R/W] */
317 entry = proc_create_data(ACPI_PROCESSOR_FILE_THROTTLING,
318 S_IFREG | S_IRUGO | S_IWUSR,
319 acpi_device_dir(device),
320 &acpi_processor_throttling_fops,
321 acpi_driver_data(device));
322 if (!entry)
323 return -EIO;
324
325 /* 'limit' [R/W] */
326 entry = proc_create_data(ACPI_PROCESSOR_FILE_LIMIT,
327 S_IFREG | S_IRUGO | S_IWUSR,
328 acpi_device_dir(device),
329 &acpi_processor_limit_fops,
330 acpi_driver_data(device));
331 if (!entry)
332 return -EIO;
333 return 0;
334}
335static int acpi_processor_remove_fs(struct acpi_device *device)
336{
337
338 if (acpi_device_dir(device)) {
339 remove_proc_entry(ACPI_PROCESSOR_FILE_INFO,
340 acpi_device_dir(device));
341 remove_proc_entry(ACPI_PROCESSOR_FILE_THROTTLING,
342 acpi_device_dir(device));
343 remove_proc_entry(ACPI_PROCESSOR_FILE_LIMIT,
344 acpi_device_dir(device));
345 remove_proc_entry(acpi_device_bid(device), acpi_processor_dir);
346 acpi_device_dir(device) = NULL;
347 }
348
349 return 0;
350}
351#else
352static inline int acpi_processor_add_fs(struct acpi_device *device)
353{
354 return 0;
355}
356static inline int acpi_processor_remove_fs(struct acpi_device *device)
357{
358 return 0;
359}
360#endif
361
362/* --------------------------------------------------------------------------
363 Driver Interface
364 -------------------------------------------------------------------------- */
365
366static int acpi_processor_get_info(struct acpi_device *device)
367{
368 acpi_status status = 0;
369 union acpi_object object = { 0 };
370 struct acpi_buffer buffer = { sizeof(union acpi_object), &object };
371 struct acpi_processor *pr;
372 int cpu_index, device_declaration = 0;
373 static int cpu0_initialized;
374
375 pr = acpi_driver_data(device);
376 if (!pr)
377 return -EINVAL;
378
379 if (num_online_cpus() > 1)
380 errata.smp = TRUE;
381
382 acpi_processor_errata(pr);
383
384 /*
385 * Check to see if we have bus mastering arbitration control. This
386 * is required for proper C3 usage (to maintain cache coherency).
387 */
388 if (acpi_gbl_FADT.pm2_control_block && acpi_gbl_FADT.pm2_control_length) {
389 pr->flags.bm_control = 1;
390 ACPI_DEBUG_PRINT((ACPI_DB_INFO,
391 "Bus mastering arbitration control present\n"));
392 } else
393 ACPI_DEBUG_PRINT((ACPI_DB_INFO,
394 "No bus mastering arbitration control\n"));
395
396 if (!strcmp(acpi_device_hid(device), ACPI_PROCESSOR_OBJECT_HID)) {
397 /* Declared with "Processor" statement; match ProcessorID */
398 status = acpi_evaluate_object(pr->handle, NULL, NULL, &buffer);
399 if (ACPI_FAILURE(status)) {
400 printk(KERN_ERR PREFIX "Evaluating processor object\n");
401 return -ENODEV;
402 }
403
404 /*
405 * TBD: Synch processor ID (via LAPIC/LSAPIC structures) on SMP.
406 * >>> 'acpi_get_processor_id(acpi_id, &id)' in
407 * arch/xxx/acpi.c
408 */
409 pr->acpi_id = object.processor.proc_id;
410 } else {
411 /*
412 * Declared with "Device" statement; match _UID.
413 * Note that we don't handle string _UIDs yet.
414 */
415 unsigned long long value;
416 status = acpi_evaluate_integer(pr->handle, METHOD_NAME__UID,
417 NULL, &value);
418 if (ACPI_FAILURE(status)) {
419 printk(KERN_ERR PREFIX
420 "Evaluating processor _UID [%#x]\n", status);
421 return -ENODEV;
422 }
423 device_declaration = 1;
424 pr->acpi_id = value;
425 }
426 cpu_index = acpi_get_cpuid(pr->handle, device_declaration, pr->acpi_id);
427
428 /* Handle UP system running SMP kernel, with no LAPIC in MADT */
429 if (!cpu0_initialized && (cpu_index == -1) &&
430 (num_online_cpus() == 1)) {
431 cpu_index = 0;
432 }
433
434 cpu0_initialized = 1;
435
436 pr->id = cpu_index;
437
438 /*
439 * Extra Processor objects may be enumerated on MP systems with
440 * less than the max # of CPUs. They should be ignored _iff
441 * they are physically not present.
442 */
443 if (pr->id == -1) {
444 if (ACPI_FAILURE
445 (acpi_processor_hotadd_init(pr->handle, &pr->id))) {
446 return -ENODEV;
447 }
448 }
449 /*
450 * On some boxes several processors use the same processor bus id.
451 * But they are located in different scope. For example:
452 * \_SB.SCK0.CPU0
453 * \_SB.SCK1.CPU0
454 * Rename the processor device bus id. And the new bus id will be
455 * generated as the following format:
456 * CPU+CPU ID.
457 */
458 sprintf(acpi_device_bid(device), "CPU%X", pr->id);
459 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Processor [%d:%d]\n", pr->id,
460 pr->acpi_id));
461
462 if (!object.processor.pblk_address)
463 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "No PBLK (NULL address)\n"));
464 else if (object.processor.pblk_length != 6)
465 printk(KERN_ERR PREFIX "Invalid PBLK length [%d]\n",
466 object.processor.pblk_length);
467 else {
468 pr->throttling.address = object.processor.pblk_address;
469 pr->throttling.duty_offset = acpi_gbl_FADT.duty_offset;
470 pr->throttling.duty_width = acpi_gbl_FADT.duty_width;
471
472 pr->pblk = object.processor.pblk_address;
473
474 /*
475 * We don't care about error returns - we just try to mark
476 * these reserved so that nobody else is confused into thinking
477 * that this region might be unused..
478 *
479 * (In particular, allocating the IO range for Cardbus)
480 */
481 request_region(pr->throttling.address, 6, "ACPI CPU throttle");
482 }
483
484 /*
485 * If ACPI describes a slot number for this CPU, we can use it
486 * ensure we get the right value in the "physical id" field
487 * of /proc/cpuinfo
488 */
489 status = acpi_evaluate_object(pr->handle, "_SUN", NULL, &buffer);
490 if (ACPI_SUCCESS(status))
491 arch_fix_phys_package_id(pr->id, object.integer.value);
492
493 return 0;
494}
495
496static DEFINE_PER_CPU(void *, processor_device_array);
497
498static void acpi_processor_notify(struct acpi_device *device, u32 event)
499{
500 struct acpi_processor *pr = acpi_driver_data(device);
501 int saved;
502
503 if (!pr)
504 return;
505
506 switch (event) {
507 case ACPI_PROCESSOR_NOTIFY_PERFORMANCE:
508 saved = pr->performance_platform_limit;
509 acpi_processor_ppc_has_changed(pr, 1);
510 if (saved == pr->performance_platform_limit)
511 break;
512 acpi_bus_generate_proc_event(device, event,
513 pr->performance_platform_limit);
514 acpi_bus_generate_netlink_event(device->pnp.device_class,
515 dev_name(&device->dev), event,
516 pr->performance_platform_limit);
517 break;
518 case ACPI_PROCESSOR_NOTIFY_POWER:
519 acpi_processor_cst_has_changed(pr);
520 acpi_bus_generate_proc_event(device, event, 0);
521 acpi_bus_generate_netlink_event(device->pnp.device_class,
522 dev_name(&device->dev), event, 0);
523 break;
524 case ACPI_PROCESSOR_NOTIFY_THROTTLING:
525 acpi_processor_tstate_has_changed(pr);
526 acpi_bus_generate_proc_event(device, event, 0);
527 acpi_bus_generate_netlink_event(device->pnp.device_class,
528 dev_name(&device->dev), event, 0);
529 default:
530 ACPI_DEBUG_PRINT((ACPI_DB_INFO,
531 "Unsupported event [0x%x]\n", event));
532 break;
533 }
534
535 return;
536}
537
538static int acpi_cpu_soft_notify(struct notifier_block *nfb,
539 unsigned long action, void *hcpu)
540{
541 unsigned int cpu = (unsigned long)hcpu;
542 struct acpi_processor *pr = per_cpu(processors, cpu);
543
544 if (action == CPU_ONLINE && pr) {
545 acpi_processor_ppc_has_changed(pr, 0);
546 acpi_processor_cst_has_changed(pr);
547 acpi_processor_tstate_has_changed(pr);
548 }
549 return NOTIFY_OK;
550}
551
552static struct notifier_block acpi_cpu_notifier =
553{
554 .notifier_call = acpi_cpu_soft_notify,
555};
556
557static int __cpuinit acpi_processor_add(struct acpi_device *device)
558{
559 struct acpi_processor *pr = NULL;
560 int result = 0;
561 struct sys_device *sysdev;
562
563 pr = kzalloc(sizeof(struct acpi_processor), GFP_KERNEL);
564 if (!pr)
565 return -ENOMEM;
566
567 if (!zalloc_cpumask_var(&pr->throttling.shared_cpu_map, GFP_KERNEL)) {
568 kfree(pr);
569 return -ENOMEM;
570 }
571
572 pr->handle = device->handle;
573 strcpy(acpi_device_name(device), ACPI_PROCESSOR_DEVICE_NAME);
574 strcpy(acpi_device_class(device), ACPI_PROCESSOR_CLASS);
575 device->driver_data = pr;
576
577 result = acpi_processor_get_info(device);
578 if (result) {
579 /* Processor is physically not present */
580 return 0;
581 }
582
583 BUG_ON((pr->id >= nr_cpu_ids) || (pr->id < 0));
584
585 /*
586 * Buggy BIOS check
587 * ACPI id of processors can be reported wrongly by the BIOS.
588 * Don't trust it blindly
589 */
590 if (per_cpu(processor_device_array, pr->id) != NULL &&
591 per_cpu(processor_device_array, pr->id) != device) {
592 printk(KERN_WARNING "BIOS reported wrong ACPI id "
593 "for the processor\n");
594 result = -ENODEV;
595 goto err_free_cpumask;
596 }
597 per_cpu(processor_device_array, pr->id) = device;
598
599 per_cpu(processors, pr->id) = pr;
600
601 result = acpi_processor_add_fs(device);
602 if (result)
603 goto err_free_cpumask;
604
605 sysdev = get_cpu_sysdev(pr->id);
606 if (sysfs_create_link(&device->dev.kobj, &sysdev->kobj, "sysdev")) {
607 result = -EFAULT;
608 goto err_remove_fs;
609 }
610
611#ifdef CONFIG_CPU_FREQ
612 acpi_processor_ppc_has_changed(pr, 0);
613#endif
614 acpi_processor_get_throttling_info(pr);
615 acpi_processor_get_limit_info(pr);
616
617
618 acpi_processor_power_init(pr, device);
619
620 pr->cdev = thermal_cooling_device_register("Processor", device,
621 &processor_cooling_ops);
622 if (IS_ERR(pr->cdev)) {
623 result = PTR_ERR(pr->cdev);
624 goto err_power_exit;
625 }
626
627 dev_dbg(&device->dev, "registered as cooling_device%d\n",
628 pr->cdev->id);
629
630 result = sysfs_create_link(&device->dev.kobj,
631 &pr->cdev->device.kobj,
632 "thermal_cooling");
633 if (result) {
634 printk(KERN_ERR PREFIX "Create sysfs link\n");
635 goto err_thermal_unregister;
636 }
637 result = sysfs_create_link(&pr->cdev->device.kobj,
638 &device->dev.kobj,
639 "device");
640 if (result) {
641 printk(KERN_ERR PREFIX "Create sysfs link\n");
642 goto err_remove_sysfs;
643 }
644
645 return 0;
646
647err_remove_sysfs:
648 sysfs_remove_link(&device->dev.kobj, "thermal_cooling");
649err_thermal_unregister:
650 thermal_cooling_device_unregister(pr->cdev);
651err_power_exit:
652 acpi_processor_power_exit(pr, device);
653err_remove_fs:
654 acpi_processor_remove_fs(device);
655err_free_cpumask:
656 free_cpumask_var(pr->throttling.shared_cpu_map);
657
658 return result;
659}
660
661static int acpi_processor_remove(struct acpi_device *device, int type)
662{
663 struct acpi_processor *pr = NULL;
664
665
666 if (!device || !acpi_driver_data(device))
667 return -EINVAL;
668
669 pr = acpi_driver_data(device);
670
671 if (pr->id >= nr_cpu_ids)
672 goto free;
673
674 if (type == ACPI_BUS_REMOVAL_EJECT) {
675 if (acpi_processor_handle_eject(pr))
676 return -EINVAL;
677 }
678
679 acpi_processor_power_exit(pr, device);
680
681 sysfs_remove_link(&device->dev.kobj, "sysdev");
682
683 acpi_processor_remove_fs(device);
684
685 if (pr->cdev) {
686 sysfs_remove_link(&device->dev.kobj, "thermal_cooling");
687 sysfs_remove_link(&pr->cdev->device.kobj, "device");
688 thermal_cooling_device_unregister(pr->cdev);
689 pr->cdev = NULL;
690 }
691
692 per_cpu(processors, pr->id) = NULL;
693 per_cpu(processor_device_array, pr->id) = NULL;
694
695free:
696 free_cpumask_var(pr->throttling.shared_cpu_map);
697 kfree(pr);
698
699 return 0;
700}
701
702#ifdef CONFIG_ACPI_HOTPLUG_CPU
703/****************************************************************************
704 * Acpi processor hotplug support *
705 ****************************************************************************/
706
707static int is_processor_present(acpi_handle handle)
708{
709 acpi_status status;
710 unsigned long long sta = 0;
711
712
713 status = acpi_evaluate_integer(handle, "_STA", NULL, &sta);
714
715 if (ACPI_SUCCESS(status) && (sta & ACPI_STA_DEVICE_PRESENT))
716 return 1;
717
718 /*
719 * _STA is mandatory for a processor that supports hot plug
720 */
721 if (status == AE_NOT_FOUND)
722 ACPI_DEBUG_PRINT((ACPI_DB_INFO,
723 "Processor does not support hot plug\n"));
724 else
725 ACPI_EXCEPTION((AE_INFO, status,
726 "Processor Device is not present"));
727 return 0;
728}
729
730static
731int acpi_processor_device_add(acpi_handle handle, struct acpi_device **device)
732{
733 acpi_handle phandle;
734 struct acpi_device *pdev;
735
736
737 if (acpi_get_parent(handle, &phandle)) {
738 return -ENODEV;
739 }
740
741 if (acpi_bus_get_device(phandle, &pdev)) {
742 return -ENODEV;
743 }
744
745 if (acpi_bus_add(device, pdev, handle, ACPI_BUS_TYPE_PROCESSOR)) {
746 return -ENODEV;
747 }
748
749 return 0;
750}
751
752static void __ref acpi_processor_hotplug_notify(acpi_handle handle,
753 u32 event, void *data)
754{
755 struct acpi_processor *pr;
756 struct acpi_device *device = NULL;
757 int result;
758
759
760 switch (event) {
761 case ACPI_NOTIFY_BUS_CHECK:
762 case ACPI_NOTIFY_DEVICE_CHECK:
763 ACPI_DEBUG_PRINT((ACPI_DB_INFO,
764 "Processor driver received %s event\n",
765 (event == ACPI_NOTIFY_BUS_CHECK) ?
766 "ACPI_NOTIFY_BUS_CHECK" : "ACPI_NOTIFY_DEVICE_CHECK"));
767
768 if (!is_processor_present(handle))
769 break;
770
771 if (acpi_bus_get_device(handle, &device)) {
772 result = acpi_processor_device_add(handle, &device);
773 if (result)
774 printk(KERN_ERR PREFIX
775 "Unable to add the device\n");
776 break;
777 }
778 break;
779 case ACPI_NOTIFY_EJECT_REQUEST:
780 ACPI_DEBUG_PRINT((ACPI_DB_INFO,
781 "received ACPI_NOTIFY_EJECT_REQUEST\n"));
782
783 if (acpi_bus_get_device(handle, &device)) {
784 printk(KERN_ERR PREFIX
785 "Device don't exist, dropping EJECT\n");
786 break;
787 }
788 pr = acpi_driver_data(device);
789 if (!pr) {
790 printk(KERN_ERR PREFIX
791 "Driver data is NULL, dropping EJECT\n");
792 return;
793 }
794 break;
795 default:
796 ACPI_DEBUG_PRINT((ACPI_DB_INFO,
797 "Unsupported event [0x%x]\n", event));
798 break;
799 }
800
801 return;
802}
803
804static acpi_status
805processor_walk_namespace_cb(acpi_handle handle,
806 u32 lvl, void *context, void **rv)
807{
808 acpi_status status;
809 int *action = context;
810 acpi_object_type type = 0;
811
812 status = acpi_get_type(handle, &type);
813 if (ACPI_FAILURE(status))
814 return (AE_OK);
815
816 if (type != ACPI_TYPE_PROCESSOR)
817 return (AE_OK);
818
819 switch (*action) {
820 case INSTALL_NOTIFY_HANDLER:
821 acpi_install_notify_handler(handle,
822 ACPI_SYSTEM_NOTIFY,
823 acpi_processor_hotplug_notify,
824 NULL);
825 break;
826 case UNINSTALL_NOTIFY_HANDLER:
827 acpi_remove_notify_handler(handle,
828 ACPI_SYSTEM_NOTIFY,
829 acpi_processor_hotplug_notify);
830 break;
831 default:
832 break;
833 }
834
835 return (AE_OK);
836}
837
838static acpi_status acpi_processor_hotadd_init(acpi_handle handle, int *p_cpu)
839{
840
841 if (!is_processor_present(handle)) {
842 return AE_ERROR;
843 }
844
845 if (acpi_map_lsapic(handle, p_cpu))
846 return AE_ERROR;
847
848 if (arch_register_cpu(*p_cpu)) {
849 acpi_unmap_lsapic(*p_cpu);
850 return AE_ERROR;
851 }
852
853 return AE_OK;
854}
855
856static int acpi_processor_handle_eject(struct acpi_processor *pr)
857{
858 if (cpu_online(pr->id))
859 cpu_down(pr->id);
860
861 arch_unregister_cpu(pr->id);
862 acpi_unmap_lsapic(pr->id);
863 return (0);
864}
865#else
866static acpi_status acpi_processor_hotadd_init(acpi_handle handle, int *p_cpu)
867{
868 return AE_ERROR;
869}
870static int acpi_processor_handle_eject(struct acpi_processor *pr)
871{
872 return (-EINVAL);
873}
874#endif
875
876static
877void acpi_processor_install_hotplug_notify(void)
878{
879#ifdef CONFIG_ACPI_HOTPLUG_CPU
880 int action = INSTALL_NOTIFY_HANDLER;
881 acpi_walk_namespace(ACPI_TYPE_PROCESSOR,
882 ACPI_ROOT_OBJECT,
883 ACPI_UINT32_MAX,
884 processor_walk_namespace_cb, NULL, &action, NULL);
885#endif
886 register_hotcpu_notifier(&acpi_cpu_notifier);
887}
888
889static
890void acpi_processor_uninstall_hotplug_notify(void)
891{
892#ifdef CONFIG_ACPI_HOTPLUG_CPU
893 int action = UNINSTALL_NOTIFY_HANDLER;
894 acpi_walk_namespace(ACPI_TYPE_PROCESSOR,
895 ACPI_ROOT_OBJECT,
896 ACPI_UINT32_MAX,
897 processor_walk_namespace_cb, NULL, &action, NULL);
898#endif
899 unregister_hotcpu_notifier(&acpi_cpu_notifier);
900}
901
902/*
903 * We keep the driver loaded even when ACPI is not running.
904 * This is needed for the powernow-k8 driver, that works even without
905 * ACPI, but needs symbols from this driver
906 */
907
908static int __init acpi_processor_init(void)
909{
910 int result = 0;
911
912 if (acpi_disabled)
913 return 0;
914
915 memset(&errata, 0, sizeof(errata));
916
917#ifdef CONFIG_ACPI_PROCFS
918 acpi_processor_dir = proc_mkdir(ACPI_PROCESSOR_CLASS, acpi_root_dir);
919 if (!acpi_processor_dir)
920 return -ENOMEM;
921#endif
922 result = cpuidle_register_driver(&acpi_idle_driver);
923 if (result < 0)
924 goto out_proc;
925
926 result = acpi_bus_register_driver(&acpi_processor_driver);
927 if (result < 0)
928 goto out_cpuidle;
929
930 acpi_processor_install_hotplug_notify();
931
932 acpi_thermal_cpufreq_init();
933
934 acpi_processor_ppc_init();
935
936 acpi_processor_throttling_init();
937
938 return 0;
939
940out_cpuidle:
941 cpuidle_unregister_driver(&acpi_idle_driver);
942
943out_proc:
944#ifdef CONFIG_ACPI_PROCFS
945 remove_proc_entry(ACPI_PROCESSOR_CLASS, acpi_root_dir);
946#endif
947
948 return result;
949}
950
951static void __exit acpi_processor_exit(void)
952{
953 if (acpi_disabled)
954 return;
955
956 acpi_processor_ppc_exit();
957
958 acpi_thermal_cpufreq_exit();
959
960 acpi_processor_uninstall_hotplug_notify();
961
962 acpi_bus_unregister_driver(&acpi_processor_driver);
963
964 cpuidle_unregister_driver(&acpi_idle_driver);
965
966#ifdef CONFIG_ACPI_PROCFS
967 remove_proc_entry(ACPI_PROCESSOR_CLASS, acpi_root_dir);
968#endif
969
970 return;
971}
972
973module_init(acpi_processor_init);
974module_exit(acpi_processor_exit);
975
976EXPORT_SYMBOL(acpi_processor_set_thermal_limit);
977
978MODULE_ALIAS("processor");
diff --git a/drivers/acpi/processor_pdc.c b/drivers/acpi/processor_pdc.c
deleted file mode 100644
index e306ba9aa34e..000000000000
--- a/drivers/acpi/processor_pdc.c
+++ /dev/null
@@ -1,209 +0,0 @@
1/*
2 * Copyright (C) 2005 Intel Corporation
3 * Copyright (C) 2009 Hewlett-Packard Development Company, L.P.
4 *
5 * Alex Chiang <achiang@hp.com>
6 * - Unified x86/ia64 implementations
7 * Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
8 * - Added _PDC for platforms with Intel CPUs
9 */
10#include <linux/dmi.h>
11
12#include <acpi/acpi_drivers.h>
13#include <acpi/processor.h>
14
15#include "internal.h"
16
17#define PREFIX "ACPI: "
18#define _COMPONENT ACPI_PROCESSOR_COMPONENT
19ACPI_MODULE_NAME("processor_pdc");
20
21static int set_no_mwait(const struct dmi_system_id *id)
22{
23 printk(KERN_NOTICE PREFIX "%s detected - "
24 "disabling mwait for CPU C-states\n", id->ident);
25 idle_nomwait = 1;
26 return 0;
27}
28
29static struct dmi_system_id __cpuinitdata processor_idle_dmi_table[] = {
30 {
31 set_no_mwait, "IFL91 board", {
32 DMI_MATCH(DMI_BIOS_VENDOR, "COMPAL"),
33 DMI_MATCH(DMI_SYS_VENDOR, "ZEPTO"),
34 DMI_MATCH(DMI_PRODUCT_VERSION, "3215W"),
35 DMI_MATCH(DMI_BOARD_NAME, "IFL91") }, NULL},
36 {
37 set_no_mwait, "Extensa 5220", {
38 DMI_MATCH(DMI_BIOS_VENDOR, "Phoenix Technologies LTD"),
39 DMI_MATCH(DMI_SYS_VENDOR, "Acer"),
40 DMI_MATCH(DMI_PRODUCT_VERSION, "0100"),
41 DMI_MATCH(DMI_BOARD_NAME, "Columbia") }, NULL},
42 {},
43};
44
45static void acpi_set_pdc_bits(u32 *buf)
46{
47 buf[0] = ACPI_PDC_REVISION_ID;
48 buf[1] = 1;
49
50 /* Enable coordination with firmware's _TSD info */
51 buf[2] = ACPI_PDC_SMP_T_SWCOORD;
52
53 /* Twiddle arch-specific bits needed for _PDC */
54 arch_acpi_set_pdc_bits(buf);
55}
56
57static struct acpi_object_list *acpi_processor_alloc_pdc(void)
58{
59 struct acpi_object_list *obj_list;
60 union acpi_object *obj;
61 u32 *buf;
62
63 /* allocate and initialize pdc. It will be used later. */
64 obj_list = kmalloc(sizeof(struct acpi_object_list), GFP_KERNEL);
65 if (!obj_list) {
66 printk(KERN_ERR "Memory allocation error\n");
67 return NULL;
68 }
69
70 obj = kmalloc(sizeof(union acpi_object), GFP_KERNEL);
71 if (!obj) {
72 printk(KERN_ERR "Memory allocation error\n");
73 kfree(obj_list);
74 return NULL;
75 }
76
77 buf = kmalloc(12, GFP_KERNEL);
78 if (!buf) {
79 printk(KERN_ERR "Memory allocation error\n");
80 kfree(obj);
81 kfree(obj_list);
82 return NULL;
83 }
84
85 acpi_set_pdc_bits(buf);
86
87 obj->type = ACPI_TYPE_BUFFER;
88 obj->buffer.length = 12;
89 obj->buffer.pointer = (u8 *) buf;
90 obj_list->count = 1;
91 obj_list->pointer = obj;
92
93 return obj_list;
94}
95
96/*
97 * _PDC is required for a BIOS-OS handshake for most of the newer
98 * ACPI processor features.
99 */
100static int
101acpi_processor_eval_pdc(acpi_handle handle, struct acpi_object_list *pdc_in)
102{
103 acpi_status status = AE_OK;
104
105 if (idle_nomwait) {
106 /*
107 * If mwait is disabled for CPU C-states, the C2C3_FFH access
108 * mode will be disabled in the parameter of _PDC object.
109 * Of course C1_FFH access mode will also be disabled.
110 */
111 union acpi_object *obj;
112 u32 *buffer = NULL;
113
114 obj = pdc_in->pointer;
115 buffer = (u32 *)(obj->buffer.pointer);
116 buffer[2] &= ~(ACPI_PDC_C_C2C3_FFH | ACPI_PDC_C_C1_FFH);
117
118 }
119 status = acpi_evaluate_object(handle, "_PDC", pdc_in, NULL);
120
121 if (ACPI_FAILURE(status))
122 ACPI_DEBUG_PRINT((ACPI_DB_INFO,
123 "Could not evaluate _PDC, using legacy perf. control.\n"));
124
125 return status;
126}
127
128static int early_pdc_done;
129
130void acpi_processor_set_pdc(acpi_handle handle)
131{
132 struct acpi_object_list *obj_list;
133
134 if (arch_has_acpi_pdc() == false)
135 return;
136
137 if (early_pdc_done)
138 return;
139
140 obj_list = acpi_processor_alloc_pdc();
141 if (!obj_list)
142 return;
143
144 acpi_processor_eval_pdc(handle, obj_list);
145
146 kfree(obj_list->pointer->buffer.pointer);
147 kfree(obj_list->pointer);
148 kfree(obj_list);
149}
150EXPORT_SYMBOL_GPL(acpi_processor_set_pdc);
151
152static int early_pdc_optin;
153static int set_early_pdc_optin(const struct dmi_system_id *id)
154{
155 early_pdc_optin = 1;
156 return 0;
157}
158
159static int param_early_pdc_optin(char *s)
160{
161 early_pdc_optin = 1;
162 return 1;
163}
164__setup("acpi_early_pdc_eval", param_early_pdc_optin);
165
166static struct dmi_system_id __cpuinitdata early_pdc_optin_table[] = {
167 {
168 set_early_pdc_optin, "HP Envy", {
169 DMI_MATCH(DMI_BIOS_VENDOR, "Hewlett-Packard"),
170 DMI_MATCH(DMI_PRODUCT_NAME, "HP Envy") }, NULL},
171 {
172 set_early_pdc_optin, "HP Pavilion dv6", {
173 DMI_MATCH(DMI_BIOS_VENDOR, "Hewlett-Packard"),
174 DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dv6") }, NULL},
175 {
176 set_early_pdc_optin, "HP Pavilion dv7", {
177 DMI_MATCH(DMI_BIOS_VENDOR, "Hewlett-Packard"),
178 DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion dv7") }, NULL},
179 {},
180};
181
182static acpi_status
183early_init_pdc(acpi_handle handle, u32 lvl, void *context, void **rv)
184{
185 acpi_processor_set_pdc(handle);
186 return AE_OK;
187}
188
189void __init acpi_early_processor_set_pdc(void)
190{
191 /*
192 * Check whether the system is DMI table. If yes, OSPM
193 * should not use mwait for CPU-states.
194 */
195 dmi_check_system(processor_idle_dmi_table);
196
197 /*
198 * Allow systems to opt-in to early _PDC evaluation.
199 */
200 dmi_check_system(early_pdc_optin_table);
201 if (!early_pdc_optin)
202 return;
203
204 acpi_walk_namespace(ACPI_TYPE_PROCESSOR, ACPI_ROOT_OBJECT,
205 ACPI_UINT32_MAX,
206 early_init_pdc, NULL, NULL, NULL);
207
208 early_pdc_done = 1;
209}
diff --git a/drivers/acpi/processor_throttling.c b/drivers/acpi/processor_throttling.c
index 7ded7542fc9d..29c6f5766dcf 100644
--- a/drivers/acpi/processor_throttling.c
+++ b/drivers/acpi/processor_throttling.c
@@ -1133,9 +1133,6 @@ int acpi_processor_get_throttling_info(struct acpi_processor *pr)
1133 int result = 0; 1133 int result = 0;
1134 struct acpi_processor_throttling *pthrottling; 1134 struct acpi_processor_throttling *pthrottling;
1135 1135
1136 if (!pr)
1137 return -EINVAL;
1138
1139 ACPI_DEBUG_PRINT((ACPI_DB_INFO, 1136 ACPI_DEBUG_PRINT((ACPI_DB_INFO,
1140 "pblk_address[0x%08x] duty_offset[%d] duty_width[%d]\n", 1137 "pblk_address[0x%08x] duty_offset[%d] duty_width[%d]\n",
1141 pr->throttling.address, 1138 pr->throttling.address,
diff --git a/drivers/acpi/sbs.c b/drivers/acpi/sbs.c
index b16ddbf23a9c..89ad11138e48 100644
--- a/drivers/acpi/sbs.c
+++ b/drivers/acpi/sbs.c
@@ -217,6 +217,9 @@ static int acpi_sbs_battery_get_property(struct power_supply *psy,
217 case POWER_SUPPLY_PROP_TECHNOLOGY: 217 case POWER_SUPPLY_PROP_TECHNOLOGY:
218 val->intval = acpi_battery_technology(battery); 218 val->intval = acpi_battery_technology(battery);
219 break; 219 break;
220 case POWER_SUPPLY_PROP_CYCLE_COUNT:
221 val->intval = battery->cycle_count;
222 break;
220 case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN: 223 case POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN:
221 val->intval = battery->design_voltage * 224 val->intval = battery->design_voltage *
222 acpi_battery_vscale(battery) * 1000; 225 acpi_battery_vscale(battery) * 1000;
@@ -276,6 +279,7 @@ static enum power_supply_property sbs_charge_battery_props[] = {
276 POWER_SUPPLY_PROP_STATUS, 279 POWER_SUPPLY_PROP_STATUS,
277 POWER_SUPPLY_PROP_PRESENT, 280 POWER_SUPPLY_PROP_PRESENT,
278 POWER_SUPPLY_PROP_TECHNOLOGY, 281 POWER_SUPPLY_PROP_TECHNOLOGY,
282 POWER_SUPPLY_PROP_CYCLE_COUNT,
279 POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN, 283 POWER_SUPPLY_PROP_VOLTAGE_MIN_DESIGN,
280 POWER_SUPPLY_PROP_VOLTAGE_NOW, 284 POWER_SUPPLY_PROP_VOLTAGE_NOW,
281 POWER_SUPPLY_PROP_CURRENT_NOW, 285 POWER_SUPPLY_PROP_CURRENT_NOW,
@@ -560,6 +564,7 @@ static int acpi_battery_read_info(struct seq_file *seq, void *offset)
560 battery->design_voltage * acpi_battery_vscale(battery)); 564 battery->design_voltage * acpi_battery_vscale(battery));
561 seq_printf(seq, "design capacity warning: unknown\n"); 565 seq_printf(seq, "design capacity warning: unknown\n");
562 seq_printf(seq, "design capacity low: unknown\n"); 566 seq_printf(seq, "design capacity low: unknown\n");
567 seq_printf(seq, "cycle count: %i\n", battery->cycle_count);
563 seq_printf(seq, "capacity granularity 1: unknown\n"); 568 seq_printf(seq, "capacity granularity 1: unknown\n");
564 seq_printf(seq, "capacity granularity 2: unknown\n"); 569 seq_printf(seq, "capacity granularity 2: unknown\n");
565 seq_printf(seq, "model number: %s\n", battery->device_name); 570 seq_printf(seq, "model number: %s\n", battery->device_name);
diff --git a/drivers/acpi/sleep.c b/drivers/acpi/sleep.c
index 3bde594a9979..f74834a544fd 100644
--- a/drivers/acpi/sleep.c
+++ b/drivers/acpi/sleep.c
@@ -552,8 +552,17 @@ static void acpi_hibernation_leave(void)
552 hibernate_nvs_restore(); 552 hibernate_nvs_restore();
553} 553}
554 554
555static void acpi_pm_enable_gpes(void) 555static int acpi_pm_pre_restore(void)
556{ 556{
557 acpi_disable_all_gpes();
558 acpi_os_wait_events_complete(NULL);
559 acpi_ec_suspend_transactions();
560 return 0;
561}
562
563static void acpi_pm_restore_cleanup(void)
564{
565 acpi_ec_resume_transactions();
557 acpi_enable_all_runtime_gpes(); 566 acpi_enable_all_runtime_gpes();
558} 567}
559 568
@@ -565,8 +574,8 @@ static struct platform_hibernation_ops acpi_hibernation_ops = {
565 .prepare = acpi_pm_prepare, 574 .prepare = acpi_pm_prepare,
566 .enter = acpi_hibernation_enter, 575 .enter = acpi_hibernation_enter,
567 .leave = acpi_hibernation_leave, 576 .leave = acpi_hibernation_leave,
568 .pre_restore = acpi_pm_disable_gpes, 577 .pre_restore = acpi_pm_pre_restore,
569 .restore_cleanup = acpi_pm_enable_gpes, 578 .restore_cleanup = acpi_pm_restore_cleanup,
570}; 579};
571 580
572/** 581/**
@@ -618,8 +627,8 @@ static struct platform_hibernation_ops acpi_hibernation_ops_old = {
618 .prepare = acpi_pm_disable_gpes, 627 .prepare = acpi_pm_disable_gpes,
619 .enter = acpi_hibernation_enter, 628 .enter = acpi_hibernation_enter,
620 .leave = acpi_hibernation_leave, 629 .leave = acpi_hibernation_leave,
621 .pre_restore = acpi_pm_disable_gpes, 630 .pre_restore = acpi_pm_pre_restore,
622 .restore_cleanup = acpi_pm_enable_gpes, 631 .restore_cleanup = acpi_pm_restore_cleanup,
623 .recover = acpi_pm_finish, 632 .recover = acpi_pm_finish,
624}; 633};
625#endif /* CONFIG_HIBERNATION */ 634#endif /* CONFIG_HIBERNATION */
diff --git a/drivers/acpi/thermal.c b/drivers/acpi/thermal.c
index 9073ada88835..5d3893558cf7 100644
--- a/drivers/acpi/thermal.c
+++ b/drivers/acpi/thermal.c
@@ -368,7 +368,7 @@ static int acpi_thermal_trips_update(struct acpi_thermal *tz, int flag)
368 int valid = 0; 368 int valid = 0;
369 int i; 369 int i;
370 370
371 /* Critical Shutdown (required) */ 371 /* Critical Shutdown */
372 if (flag & ACPI_TRIPS_CRITICAL) { 372 if (flag & ACPI_TRIPS_CRITICAL) {
373 status = acpi_evaluate_integer(tz->device->handle, 373 status = acpi_evaluate_integer(tz->device->handle,
374 "_CRT", NULL, &tmp); 374 "_CRT", NULL, &tmp);
@@ -379,17 +379,19 @@ static int acpi_thermal_trips_update(struct acpi_thermal *tz, int flag)
379 * Below zero (Celsius) values clearly aren't right for sure.. 379 * Below zero (Celsius) values clearly aren't right for sure..
380 * ... so lets discard those as invalid. 380 * ... so lets discard those as invalid.
381 */ 381 */
382 if (ACPI_FAILURE(status) || 382 if (ACPI_FAILURE(status)) {
383 tz->trips.critical.temperature <= 2732) { 383 tz->trips.critical.flags.valid = 0;
384 ACPI_DEBUG_PRINT((ACPI_DB_INFO,
385 "No critical threshold\n"));
386 } else if (tmp <= 2732) {
387 printk(KERN_WARNING FW_BUG "Invalid critical threshold "
388 "(%llu)\n", tmp);
384 tz->trips.critical.flags.valid = 0; 389 tz->trips.critical.flags.valid = 0;
385 ACPI_EXCEPTION((AE_INFO, status,
386 "No or invalid critical threshold"));
387 return -ENODEV;
388 } else { 390 } else {
389 tz->trips.critical.flags.valid = 1; 391 tz->trips.critical.flags.valid = 1;
390 ACPI_DEBUG_PRINT((ACPI_DB_INFO, 392 ACPI_DEBUG_PRINT((ACPI_DB_INFO,
391 "Found critical threshold [%lu]\n", 393 "Found critical threshold [%lu]\n",
392 tz->trips.critical.temperature)); 394 tz->trips.critical.temperature));
393 } 395 }
394 if (tz->trips.critical.flags.valid == 1) { 396 if (tz->trips.critical.flags.valid == 1) {
395 if (crt == -1) { 397 if (crt == -1) {
@@ -575,7 +577,23 @@ static int acpi_thermal_trips_update(struct acpi_thermal *tz, int flag)
575 577
576static int acpi_thermal_get_trip_points(struct acpi_thermal *tz) 578static int acpi_thermal_get_trip_points(struct acpi_thermal *tz)
577{ 579{
578 return acpi_thermal_trips_update(tz, ACPI_TRIPS_INIT); 580 int i, valid, ret = acpi_thermal_trips_update(tz, ACPI_TRIPS_INIT);
581
582 if (ret)
583 return ret;
584
585 valid = tz->trips.critical.flags.valid |
586 tz->trips.hot.flags.valid |
587 tz->trips.passive.flags.valid;
588
589 for (i = 0; i < ACPI_THERMAL_MAX_ACTIVE; i++)
590 valid |= tz->trips.active[i].flags.valid;
591
592 if (!valid) {
593 printk(KERN_WARNING FW_BUG "No valid trip found\n");
594 return -ENODEV;
595 }
596 return 0;
579} 597}
580 598
581static void acpi_thermal_check(void *data) 599static void acpi_thermal_check(void *data)
diff --git a/drivers/acpi/utils.c b/drivers/acpi/utils.c
index 11882dbe2094..c9a49f4747e6 100644
--- a/drivers/acpi/utils.c
+++ b/drivers/acpi/utils.c
@@ -289,51 +289,6 @@ acpi_evaluate_integer(acpi_handle handle,
289 289
290EXPORT_SYMBOL(acpi_evaluate_integer); 290EXPORT_SYMBOL(acpi_evaluate_integer);
291 291
292#if 0
293acpi_status
294acpi_evaluate_string(acpi_handle handle,
295 acpi_string pathname,
296 acpi_object_list * arguments, acpi_string * data)
297{
298 acpi_status status = AE_OK;
299 acpi_object *element = NULL;
300 acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
301
302
303 if (!data)
304 return AE_BAD_PARAMETER;
305
306 status = acpi_evaluate_object(handle, pathname, arguments, &buffer);
307 if (ACPI_FAILURE(status)) {
308 acpi_util_eval_error(handle, pathname, status);
309 return status;
310 }
311
312 element = (acpi_object *) buffer.pointer;
313
314 if ((element->type != ACPI_TYPE_STRING)
315 || (element->type != ACPI_TYPE_BUFFER)
316 || !element->string.length) {
317 acpi_util_eval_error(handle, pathname, AE_BAD_DATA);
318 return AE_BAD_DATA;
319 }
320
321 *data = kzalloc(element->string.length + 1, GFP_KERNEL);
322 if (!data) {
323 printk(KERN_ERR PREFIX "Memory allocation\n");
324 return -ENOMEM;
325 }
326
327 memcpy(*data, element->string.pointer, element->string.length);
328
329 ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Return value [%s]\n", *data));
330
331 kfree(buffer.pointer);
332
333 return AE_OK;
334}
335#endif
336
337acpi_status 292acpi_status
338acpi_evaluate_reference(acpi_handle handle, 293acpi_evaluate_reference(acpi_handle handle,
339 acpi_string pathname, 294 acpi_string pathname,
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index 6e9b49149fce..2ff2b6ab5b6c 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -327,7 +327,7 @@ static int acpi_video_device_lcd_set_level(struct acpi_video_device *device,
327 int level); 327 int level);
328static int acpi_video_device_lcd_get_level_current( 328static int acpi_video_device_lcd_get_level_current(
329 struct acpi_video_device *device, 329 struct acpi_video_device *device,
330 unsigned long long *level); 330 unsigned long long *level, int init);
331static int acpi_video_get_next_level(struct acpi_video_device *device, 331static int acpi_video_get_next_level(struct acpi_video_device *device,
332 u32 level_current, u32 event); 332 u32 level_current, u32 event);
333static int acpi_video_switch_brightness(struct acpi_video_device *device, 333static int acpi_video_switch_brightness(struct acpi_video_device *device,
@@ -345,7 +345,7 @@ static int acpi_video_get_brightness(struct backlight_device *bd)
345 struct acpi_video_device *vd = 345 struct acpi_video_device *vd =
346 (struct acpi_video_device *)bl_get_data(bd); 346 (struct acpi_video_device *)bl_get_data(bd);
347 347
348 if (acpi_video_device_lcd_get_level_current(vd, &cur_level)) 348 if (acpi_video_device_lcd_get_level_current(vd, &cur_level, 0))
349 return -EINVAL; 349 return -EINVAL;
350 for (i = 2; i < vd->brightness->count; i++) { 350 for (i = 2; i < vd->brightness->count; i++) {
351 if (vd->brightness->levels[i] == cur_level) 351 if (vd->brightness->levels[i] == cur_level)
@@ -414,7 +414,7 @@ static int video_get_cur_state(struct thermal_cooling_device *cooling_dev, unsig
414 unsigned long long level; 414 unsigned long long level;
415 int offset; 415 int offset;
416 416
417 if (acpi_video_device_lcd_get_level_current(video, &level)) 417 if (acpi_video_device_lcd_get_level_current(video, &level, 0))
418 return -EINVAL; 418 return -EINVAL;
419 for (offset = 2; offset < video->brightness->count; offset++) 419 for (offset = 2; offset < video->brightness->count; offset++)
420 if (level == video->brightness->levels[offset]) { 420 if (level == video->brightness->levels[offset]) {
@@ -609,7 +609,7 @@ static struct dmi_system_id video_dmi_table[] __initdata = {
609 609
610static int 610static int
611acpi_video_device_lcd_get_level_current(struct acpi_video_device *device, 611acpi_video_device_lcd_get_level_current(struct acpi_video_device *device,
612 unsigned long long *level) 612 unsigned long long *level, int init)
613{ 613{
614 acpi_status status = AE_OK; 614 acpi_status status = AE_OK;
615 int i; 615 int i;
@@ -633,10 +633,16 @@ acpi_video_device_lcd_get_level_current(struct acpi_video_device *device,
633 device->brightness->curr = *level; 633 device->brightness->curr = *level;
634 return 0; 634 return 0;
635 } 635 }
636 /* BQC returned an invalid level. Stop using it. */ 636 if (!init) {
637 ACPI_WARNING((AE_INFO, "%s returned an invalid level", 637 /*
638 buf)); 638 * BQC returned an invalid level.
639 device->cap._BQC = device->cap._BCQ = 0; 639 * Stop using it.
640 */
641 ACPI_WARNING((AE_INFO,
642 "%s returned an invalid level",
643 buf));
644 device->cap._BQC = device->cap._BCQ = 0;
645 }
640 } else { 646 } else {
641 /* Fixme: 647 /* Fixme:
642 * should we return an error or ignore this failure? 648 * should we return an error or ignore this failure?
@@ -892,7 +898,7 @@ acpi_video_init_brightness(struct acpi_video_device *device)
892 if (!device->cap._BQC) 898 if (!device->cap._BQC)
893 goto set_level; 899 goto set_level;
894 900
895 result = acpi_video_device_lcd_get_level_current(device, &level_old); 901 result = acpi_video_device_lcd_get_level_current(device, &level_old, 1);
896 if (result) 902 if (result)
897 goto out_free_levels; 903 goto out_free_levels;
898 904
@@ -903,7 +909,7 @@ acpi_video_init_brightness(struct acpi_video_device *device)
903 if (result) 909 if (result)
904 goto out_free_levels; 910 goto out_free_levels;
905 911
906 result = acpi_video_device_lcd_get_level_current(device, &level); 912 result = acpi_video_device_lcd_get_level_current(device, &level, 0);
907 if (result) 913 if (result)
908 goto out_free_levels; 914 goto out_free_levels;
909 915
@@ -1996,7 +2002,7 @@ acpi_video_switch_brightness(struct acpi_video_device *device, int event)
1996 goto out; 2002 goto out;
1997 2003
1998 result = acpi_video_device_lcd_get_level_current(device, 2004 result = acpi_video_device_lcd_get_level_current(device,
1999 &level_current); 2005 &level_current, 0);
2000 if (result) 2006 if (result)
2001 goto out; 2007 goto out;
2002 2008
diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c
index cb2fd01eddae..b5dad9f37453 100644
--- a/drivers/pci/hotplug/acpiphp_glue.c
+++ b/drivers/pci/hotplug/acpiphp_glue.c
@@ -749,6 +749,24 @@ static int acpiphp_bus_trim(acpi_handle handle)
749 return retval; 749 return retval;
750} 750}
751 751
752static void acpiphp_set_acpi_region(struct acpiphp_slot *slot)
753{
754 struct acpiphp_func *func;
755 union acpi_object params[2];
756 struct acpi_object_list arg_list;
757
758 list_for_each_entry(func, &slot->funcs, sibling) {
759 arg_list.count = 2;
760 arg_list.pointer = params;
761 params[0].type = ACPI_TYPE_INTEGER;
762 params[0].integer.value = ACPI_ADR_SPACE_PCI_CONFIG;
763 params[1].type = ACPI_TYPE_INTEGER;
764 params[1].integer.value = 1;
765 /* _REG is optional, we don't care about if there is failure */
766 acpi_evaluate_object(func->handle, "_REG", &arg_list, NULL);
767 }
768}
769
752/** 770/**
753 * enable_device - enable, configure a slot 771 * enable_device - enable, configure a slot
754 * @slot: slot to be enabled 772 * @slot: slot to be enabled
@@ -805,6 +823,7 @@ static int __ref enable_device(struct acpiphp_slot *slot)
805 pci_bus_assign_resources(bus); 823 pci_bus_assign_resources(bus);
806 acpiphp_sanitize_bus(bus); 824 acpiphp_sanitize_bus(bus);
807 acpiphp_set_hpp_values(bus); 825 acpiphp_set_hpp_values(bus);
826 acpiphp_set_acpi_region(slot);
808 pci_enable_bridges(bus); 827 pci_enable_bridges(bus);
809 pci_bus_add_devices(bus); 828 pci_bus_add_devices(bus);
810 829
diff --git a/drivers/platform/x86/sony-laptop.c b/drivers/platform/x86/sony-laptop.c
index 3f71a605a492..5a3d8514c66d 100644
--- a/drivers/platform/x86/sony-laptop.c
+++ b/drivers/platform/x86/sony-laptop.c
@@ -145,7 +145,7 @@ struct sony_laptop_input_s {
145 struct input_dev *key_dev; 145 struct input_dev *key_dev;
146 struct kfifo fifo; 146 struct kfifo fifo;
147 spinlock_t fifo_lock; 147 spinlock_t fifo_lock;
148 struct workqueue_struct *wq; 148 struct timer_list release_key_timer;
149}; 149};
150 150
151static struct sony_laptop_input_s sony_laptop_input = { 151static struct sony_laptop_input_s sony_laptop_input = {
@@ -299,20 +299,26 @@ static int sony_laptop_input_keycode_map[] = {
299}; 299};
300 300
301/* release buttons after a short delay if pressed */ 301/* release buttons after a short delay if pressed */
302static void do_sony_laptop_release_key(struct work_struct *work) 302static void do_sony_laptop_release_key(unsigned long unused)
303{ 303{
304 struct sony_laptop_keypress kp; 304 struct sony_laptop_keypress kp;
305 unsigned long flags;
306
307 spin_lock_irqsave(&sony_laptop_input.fifo_lock, flags);
305 308
306 while (kfifo_out_locked(&sony_laptop_input.fifo, (unsigned char *)&kp, 309 if (kfifo_out(&sony_laptop_input.fifo,
307 sizeof(kp), &sony_laptop_input.fifo_lock) 310 (unsigned char *)&kp, sizeof(kp)) == sizeof(kp)) {
308 == sizeof(kp)) {
309 msleep(10);
310 input_report_key(kp.dev, kp.key, 0); 311 input_report_key(kp.dev, kp.key, 0);
311 input_sync(kp.dev); 312 input_sync(kp.dev);
312 } 313 }
314
315 /* If there is something in the fifo schedule next release. */
316 if (kfifo_len(&sony_laptop_input.fifo) != 0)
317 mod_timer(&sony_laptop_input.release_key_timer,
318 jiffies + msecs_to_jiffies(10));
319
320 spin_unlock_irqrestore(&sony_laptop_input.fifo_lock, flags);
313} 321}
314static DECLARE_WORK(sony_laptop_release_key_work,
315 do_sony_laptop_release_key);
316 322
317/* forward event to the input subsystem */ 323/* forward event to the input subsystem */
318static void sony_laptop_report_input_event(u8 event) 324static void sony_laptop_report_input_event(u8 event)
@@ -366,13 +372,13 @@ static void sony_laptop_report_input_event(u8 event)
366 /* we emit the scancode so we can always remap the key */ 372 /* we emit the scancode so we can always remap the key */
367 input_event(kp.dev, EV_MSC, MSC_SCAN, event); 373 input_event(kp.dev, EV_MSC, MSC_SCAN, event);
368 input_sync(kp.dev); 374 input_sync(kp.dev);
369 kfifo_in_locked(&sony_laptop_input.fifo,
370 (unsigned char *)&kp, sizeof(kp),
371 &sony_laptop_input.fifo_lock);
372 375
373 if (!work_pending(&sony_laptop_release_key_work)) 376 /* schedule key release */
374 queue_work(sony_laptop_input.wq, 377 kfifo_in_locked(&sony_laptop_input.fifo,
375 &sony_laptop_release_key_work); 378 (unsigned char *)&kp, sizeof(kp),
379 &sony_laptop_input.fifo_lock);
380 mod_timer(&sony_laptop_input.release_key_timer,
381 jiffies + msecs_to_jiffies(10));
376 } else 382 } else
377 dprintk("unknown input event %.2x\n", event); 383 dprintk("unknown input event %.2x\n", event);
378} 384}
@@ -390,27 +396,21 @@ static int sony_laptop_setup_input(struct acpi_device *acpi_device)
390 396
391 /* kfifo */ 397 /* kfifo */
392 spin_lock_init(&sony_laptop_input.fifo_lock); 398 spin_lock_init(&sony_laptop_input.fifo_lock);
393 error = 399 error = kfifo_alloc(&sony_laptop_input.fifo,
394 kfifo_alloc(&sony_laptop_input.fifo, SONY_LAPTOP_BUF_SIZE, GFP_KERNEL); 400 SONY_LAPTOP_BUF_SIZE, GFP_KERNEL);
395 if (error) { 401 if (error) {
396 printk(KERN_ERR DRV_PFX "kfifo_alloc failed\n"); 402 printk(KERN_ERR DRV_PFX "kfifo_alloc failed\n");
397 goto err_dec_users; 403 goto err_dec_users;
398 } 404 }
399 405
400 /* init workqueue */ 406 setup_timer(&sony_laptop_input.release_key_timer,
401 sony_laptop_input.wq = create_singlethread_workqueue("sony-laptop"); 407 do_sony_laptop_release_key, 0);
402 if (!sony_laptop_input.wq) {
403 printk(KERN_ERR DRV_PFX
404 "Unable to create workqueue.\n");
405 error = -ENXIO;
406 goto err_free_kfifo;
407 }
408 408
409 /* input keys */ 409 /* input keys */
410 key_dev = input_allocate_device(); 410 key_dev = input_allocate_device();
411 if (!key_dev) { 411 if (!key_dev) {
412 error = -ENOMEM; 412 error = -ENOMEM;
413 goto err_destroy_wq; 413 goto err_free_kfifo;
414 } 414 }
415 415
416 key_dev->name = "Sony Vaio Keys"; 416 key_dev->name = "Sony Vaio Keys";
@@ -419,18 +419,15 @@ static int sony_laptop_setup_input(struct acpi_device *acpi_device)
419 key_dev->dev.parent = &acpi_device->dev; 419 key_dev->dev.parent = &acpi_device->dev;
420 420
421 /* Initialize the Input Drivers: special keys */ 421 /* Initialize the Input Drivers: special keys */
422 set_bit(EV_KEY, key_dev->evbit); 422 input_set_capability(key_dev, EV_MSC, MSC_SCAN);
423 set_bit(EV_MSC, key_dev->evbit); 423
424 set_bit(MSC_SCAN, key_dev->mscbit); 424 __set_bit(EV_KEY, key_dev->evbit);
425 key_dev->keycodesize = sizeof(sony_laptop_input_keycode_map[0]); 425 key_dev->keycodesize = sizeof(sony_laptop_input_keycode_map[0]);
426 key_dev->keycodemax = ARRAY_SIZE(sony_laptop_input_keycode_map); 426 key_dev->keycodemax = ARRAY_SIZE(sony_laptop_input_keycode_map);
427 key_dev->keycode = &sony_laptop_input_keycode_map; 427 key_dev->keycode = &sony_laptop_input_keycode_map;
428 for (i = 0; i < ARRAY_SIZE(sony_laptop_input_keycode_map); i++) { 428 for (i = 0; i < ARRAY_SIZE(sony_laptop_input_keycode_map); i++)
429 if (sony_laptop_input_keycode_map[i] != KEY_RESERVED) { 429 __set_bit(sony_laptop_input_keycode_map[i], key_dev->keybit);
430 set_bit(sony_laptop_input_keycode_map[i], 430 __clear_bit(KEY_RESERVED, key_dev->keybit);
431 key_dev->keybit);
432 }
433 }
434 431
435 error = input_register_device(key_dev); 432 error = input_register_device(key_dev);
436 if (error) 433 if (error)
@@ -450,9 +447,8 @@ static int sony_laptop_setup_input(struct acpi_device *acpi_device)
450 jog_dev->id.vendor = PCI_VENDOR_ID_SONY; 447 jog_dev->id.vendor = PCI_VENDOR_ID_SONY;
451 key_dev->dev.parent = &acpi_device->dev; 448 key_dev->dev.parent = &acpi_device->dev;
452 449
453 jog_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL); 450 input_set_capability(jog_dev, EV_KEY, BTN_MIDDLE);
454 jog_dev->keybit[BIT_WORD(BTN_MOUSE)] = BIT_MASK(BTN_MIDDLE); 451 input_set_capability(jog_dev, EV_REL, REL_WHEEL);
455 jog_dev->relbit[0] = BIT_MASK(REL_WHEEL);
456 452
457 error = input_register_device(jog_dev); 453 error = input_register_device(jog_dev);
458 if (error) 454 if (error)
@@ -473,9 +469,6 @@ err_unregister_keydev:
473err_free_keydev: 469err_free_keydev:
474 input_free_device(key_dev); 470 input_free_device(key_dev);
475 471
476err_destroy_wq:
477 destroy_workqueue(sony_laptop_input.wq);
478
479err_free_kfifo: 472err_free_kfifo:
480 kfifo_free(&sony_laptop_input.fifo); 473 kfifo_free(&sony_laptop_input.fifo);
481 474
@@ -486,12 +479,23 @@ err_dec_users:
486 479
487static void sony_laptop_remove_input(void) 480static void sony_laptop_remove_input(void)
488{ 481{
489 /* cleanup only after the last user has gone */ 482 struct sony_laptop_keypress kp = { NULL };
483
484 /* Cleanup only after the last user has gone */
490 if (!atomic_dec_and_test(&sony_laptop_input.users)) 485 if (!atomic_dec_and_test(&sony_laptop_input.users))
491 return; 486 return;
492 487
493 /* flush workqueue first */ 488 del_timer_sync(&sony_laptop_input.release_key_timer);
494 flush_workqueue(sony_laptop_input.wq); 489
490 /*
491 * Generate key-up events for remaining keys. Note that we don't
492 * need locking since nobody is adding new events to the kfifo.
493 */
494 while (kfifo_out(&sony_laptop_input.fifo,
495 (unsigned char *)&kp, sizeof(kp)) == sizeof(kp)) {
496 input_report_key(kp.dev, kp.key, 0);
497 input_sync(kp.dev);
498 }
495 499
496 /* destroy input devs */ 500 /* destroy input devs */
497 input_unregister_device(sony_laptop_input.key_dev); 501 input_unregister_device(sony_laptop_input.key_dev);
@@ -502,7 +506,6 @@ static void sony_laptop_remove_input(void)
502 sony_laptop_input.jog_dev = NULL; 506 sony_laptop_input.jog_dev = NULL;
503 } 507 }
504 508
505 destroy_workqueue(sony_laptop_input.wq);
506 kfifo_free(&sony_laptop_input.fifo); 509 kfifo_free(&sony_laptop_input.fifo);
507} 510}
508 511
diff --git a/drivers/pnp/base.h b/drivers/pnp/base.h
index 0b8d14050efa..0bab84ebb15d 100644
--- a/drivers/pnp/base.h
+++ b/drivers/pnp/base.h
@@ -166,6 +166,9 @@ struct pnp_resource *pnp_add_io_resource(struct pnp_dev *dev,
166struct pnp_resource *pnp_add_mem_resource(struct pnp_dev *dev, 166struct pnp_resource *pnp_add_mem_resource(struct pnp_dev *dev,
167 resource_size_t start, 167 resource_size_t start,
168 resource_size_t end, int flags); 168 resource_size_t end, int flags);
169struct pnp_resource *pnp_add_bus_resource(struct pnp_dev *dev,
170 resource_size_t start,
171 resource_size_t end);
169 172
170extern int pnp_debug; 173extern int pnp_debug;
171 174
diff --git a/drivers/pnp/interface.c b/drivers/pnp/interface.c
index 68b0c04987e4..cfaf5b73540b 100644
--- a/drivers/pnp/interface.c
+++ b/drivers/pnp/interface.c
@@ -278,9 +278,12 @@ static ssize_t pnp_show_current_resources(struct device *dmdev,
278 switch (pnp_resource_type(res)) { 278 switch (pnp_resource_type(res)) {
279 case IORESOURCE_IO: 279 case IORESOURCE_IO:
280 case IORESOURCE_MEM: 280 case IORESOURCE_MEM:
281 pnp_printf(buffer, " %#llx-%#llx\n", 281 case IORESOURCE_BUS:
282 pnp_printf(buffer, " %#llx-%#llx%s\n",
282 (unsigned long long) res->start, 283 (unsigned long long) res->start,
283 (unsigned long long) res->end); 284 (unsigned long long) res->end,
285 res->flags & IORESOURCE_WINDOW ?
286 " window" : "");
284 break; 287 break;
285 case IORESOURCE_IRQ: 288 case IORESOURCE_IRQ:
286 case IORESOURCE_DMA: 289 case IORESOURCE_DMA:
diff --git a/drivers/pnp/pnpacpi/rsparser.c b/drivers/pnp/pnpacpi/rsparser.c
index 5702b2c8691f..54514aa35b09 100644
--- a/drivers/pnp/pnpacpi/rsparser.c
+++ b/drivers/pnp/pnpacpi/rsparser.c
@@ -177,7 +177,8 @@ static int dma_flags(struct pnp_dev *dev, int type, int bus_master,
177} 177}
178 178
179static void pnpacpi_parse_allocated_ioresource(struct pnp_dev *dev, u64 start, 179static void pnpacpi_parse_allocated_ioresource(struct pnp_dev *dev, u64 start,
180 u64 len, int io_decode) 180 u64 len, int io_decode,
181 int window)
181{ 182{
182 int flags = 0; 183 int flags = 0;
183 u64 end = start + len - 1; 184 u64 end = start + len - 1;
@@ -186,6 +187,8 @@ static void pnpacpi_parse_allocated_ioresource(struct pnp_dev *dev, u64 start,
186 flags |= IORESOURCE_IO_16BIT_ADDR; 187 flags |= IORESOURCE_IO_16BIT_ADDR;
187 if (len == 0 || end >= 0x10003) 188 if (len == 0 || end >= 0x10003)
188 flags |= IORESOURCE_DISABLED; 189 flags |= IORESOURCE_DISABLED;
190 if (window)
191 flags |= IORESOURCE_WINDOW;
189 192
190 pnp_add_io_resource(dev, start, end, flags); 193 pnp_add_io_resource(dev, start, end, flags);
191} 194}
@@ -247,7 +250,7 @@ static void pnpacpi_parse_allocated_vendor(struct pnp_dev *dev,
247 250
248static void pnpacpi_parse_allocated_memresource(struct pnp_dev *dev, 251static void pnpacpi_parse_allocated_memresource(struct pnp_dev *dev,
249 u64 start, u64 len, 252 u64 start, u64 len,
250 int write_protect) 253 int write_protect, int window)
251{ 254{
252 int flags = 0; 255 int flags = 0;
253 u64 end = start + len - 1; 256 u64 end = start + len - 1;
@@ -256,15 +259,26 @@ static void pnpacpi_parse_allocated_memresource(struct pnp_dev *dev,
256 flags |= IORESOURCE_DISABLED; 259 flags |= IORESOURCE_DISABLED;
257 if (write_protect == ACPI_READ_WRITE_MEMORY) 260 if (write_protect == ACPI_READ_WRITE_MEMORY)
258 flags |= IORESOURCE_MEM_WRITEABLE; 261 flags |= IORESOURCE_MEM_WRITEABLE;
262 if (window)
263 flags |= IORESOURCE_WINDOW;
259 264
260 pnp_add_mem_resource(dev, start, end, flags); 265 pnp_add_mem_resource(dev, start, end, flags);
261} 266}
262 267
268static void pnpacpi_parse_allocated_busresource(struct pnp_dev *dev,
269 u64 start, u64 len)
270{
271 u64 end = start + len - 1;
272
273 pnp_add_bus_resource(dev, start, end);
274}
275
263static void pnpacpi_parse_allocated_address_space(struct pnp_dev *dev, 276static void pnpacpi_parse_allocated_address_space(struct pnp_dev *dev,
264 struct acpi_resource *res) 277 struct acpi_resource *res)
265{ 278{
266 struct acpi_resource_address64 addr, *p = &addr; 279 struct acpi_resource_address64 addr, *p = &addr;
267 acpi_status status; 280 acpi_status status;
281 int window;
268 282
269 status = acpi_resource_to_address64(res, p); 283 status = acpi_resource_to_address64(res, p);
270 if (!ACPI_SUCCESS(status)) { 284 if (!ACPI_SUCCESS(status)) {
@@ -273,37 +287,42 @@ static void pnpacpi_parse_allocated_address_space(struct pnp_dev *dev,
273 return; 287 return;
274 } 288 }
275 289
276 if (p->producer_consumer == ACPI_PRODUCER) 290 window = (p->producer_consumer == ACPI_PRODUCER) ? 1 : 0;
277 return;
278 291
279 if (p->resource_type == ACPI_MEMORY_RANGE) 292 if (p->resource_type == ACPI_MEMORY_RANGE)
280 pnpacpi_parse_allocated_memresource(dev, 293 pnpacpi_parse_allocated_memresource(dev,
281 p->minimum, p->address_length, 294 p->minimum, p->address_length,
282 p->info.mem.write_protect); 295 p->info.mem.write_protect, window);
283 else if (p->resource_type == ACPI_IO_RANGE) 296 else if (p->resource_type == ACPI_IO_RANGE)
284 pnpacpi_parse_allocated_ioresource(dev, 297 pnpacpi_parse_allocated_ioresource(dev,
285 p->minimum, p->address_length, 298 p->minimum, p->address_length,
286 p->granularity == 0xfff ? ACPI_DECODE_10 : 299 p->granularity == 0xfff ? ACPI_DECODE_10 :
287 ACPI_DECODE_16); 300 ACPI_DECODE_16, window);
301 else if (p->resource_type == ACPI_BUS_NUMBER_RANGE)
302 pnpacpi_parse_allocated_busresource(dev, p->minimum,
303 p->address_length);
288} 304}
289 305
290static void pnpacpi_parse_allocated_ext_address_space(struct pnp_dev *dev, 306static void pnpacpi_parse_allocated_ext_address_space(struct pnp_dev *dev,
291 struct acpi_resource *res) 307 struct acpi_resource *res)
292{ 308{
293 struct acpi_resource_extended_address64 *p = &res->data.ext_address64; 309 struct acpi_resource_extended_address64 *p = &res->data.ext_address64;
310 int window;
294 311
295 if (p->producer_consumer == ACPI_PRODUCER) 312 window = (p->producer_consumer == ACPI_PRODUCER) ? 1 : 0;
296 return;
297 313
298 if (p->resource_type == ACPI_MEMORY_RANGE) 314 if (p->resource_type == ACPI_MEMORY_RANGE)
299 pnpacpi_parse_allocated_memresource(dev, 315 pnpacpi_parse_allocated_memresource(dev,
300 p->minimum, p->address_length, 316 p->minimum, p->address_length,
301 p->info.mem.write_protect); 317 p->info.mem.write_protect, window);
302 else if (p->resource_type == ACPI_IO_RANGE) 318 else if (p->resource_type == ACPI_IO_RANGE)
303 pnpacpi_parse_allocated_ioresource(dev, 319 pnpacpi_parse_allocated_ioresource(dev,
304 p->minimum, p->address_length, 320 p->minimum, p->address_length,
305 p->granularity == 0xfff ? ACPI_DECODE_10 : 321 p->granularity == 0xfff ? ACPI_DECODE_10 :
306 ACPI_DECODE_16); 322 ACPI_DECODE_16, window);
323 else if (p->resource_type == ACPI_BUS_NUMBER_RANGE)
324 pnpacpi_parse_allocated_busresource(dev, p->minimum,
325 p->address_length);
307} 326}
308 327
309static acpi_status pnpacpi_allocated_resource(struct acpi_resource *res, 328static acpi_status pnpacpi_allocated_resource(struct acpi_resource *res,
@@ -368,7 +387,7 @@ static acpi_status pnpacpi_allocated_resource(struct acpi_resource *res,
368 pnpacpi_parse_allocated_ioresource(dev, 387 pnpacpi_parse_allocated_ioresource(dev,
369 io->minimum, 388 io->minimum,
370 io->address_length, 389 io->address_length,
371 io->io_decode); 390 io->io_decode, 0);
372 break; 391 break;
373 392
374 case ACPI_RESOURCE_TYPE_START_DEPENDENT: 393 case ACPI_RESOURCE_TYPE_START_DEPENDENT:
@@ -380,7 +399,7 @@ static acpi_status pnpacpi_allocated_resource(struct acpi_resource *res,
380 pnpacpi_parse_allocated_ioresource(dev, 399 pnpacpi_parse_allocated_ioresource(dev,
381 fixed_io->address, 400 fixed_io->address,
382 fixed_io->address_length, 401 fixed_io->address_length,
383 ACPI_DECODE_10); 402 ACPI_DECODE_10, 0);
384 break; 403 break;
385 404
386 case ACPI_RESOURCE_TYPE_VENDOR: 405 case ACPI_RESOURCE_TYPE_VENDOR:
@@ -396,21 +415,21 @@ static acpi_status pnpacpi_allocated_resource(struct acpi_resource *res,
396 pnpacpi_parse_allocated_memresource(dev, 415 pnpacpi_parse_allocated_memresource(dev,
397 memory24->minimum, 416 memory24->minimum,
398 memory24->address_length, 417 memory24->address_length,
399 memory24->write_protect); 418 memory24->write_protect, 0);
400 break; 419 break;
401 case ACPI_RESOURCE_TYPE_MEMORY32: 420 case ACPI_RESOURCE_TYPE_MEMORY32:
402 memory32 = &res->data.memory32; 421 memory32 = &res->data.memory32;
403 pnpacpi_parse_allocated_memresource(dev, 422 pnpacpi_parse_allocated_memresource(dev,
404 memory32->minimum, 423 memory32->minimum,
405 memory32->address_length, 424 memory32->address_length,
406 memory32->write_protect); 425 memory32->write_protect, 0);
407 break; 426 break;
408 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32: 427 case ACPI_RESOURCE_TYPE_FIXED_MEMORY32:
409 fixed_memory32 = &res->data.fixed_memory32; 428 fixed_memory32 = &res->data.fixed_memory32;
410 pnpacpi_parse_allocated_memresource(dev, 429 pnpacpi_parse_allocated_memresource(dev,
411 fixed_memory32->address, 430 fixed_memory32->address,
412 fixed_memory32->address_length, 431 fixed_memory32->address_length,
413 fixed_memory32->write_protect); 432 fixed_memory32->write_protect, 0);
414 break; 433 break;
415 case ACPI_RESOURCE_TYPE_ADDRESS16: 434 case ACPI_RESOURCE_TYPE_ADDRESS16:
416 case ACPI_RESOURCE_TYPE_ADDRESS32: 435 case ACPI_RESOURCE_TYPE_ADDRESS32:
diff --git a/drivers/pnp/resource.c b/drivers/pnp/resource.c
index 64d0596bafb5..5b277dbaacde 100644
--- a/drivers/pnp/resource.c
+++ b/drivers/pnp/resource.c
@@ -470,7 +470,8 @@ int pnp_check_dma(struct pnp_dev *dev, struct resource *res)
470unsigned long pnp_resource_type(struct resource *res) 470unsigned long pnp_resource_type(struct resource *res)
471{ 471{
472 return res->flags & (IORESOURCE_IO | IORESOURCE_MEM | 472 return res->flags & (IORESOURCE_IO | IORESOURCE_MEM |
473 IORESOURCE_IRQ | IORESOURCE_DMA); 473 IORESOURCE_IRQ | IORESOURCE_DMA |
474 IORESOURCE_BUS);
474} 475}
475 476
476struct resource *pnp_get_resource(struct pnp_dev *dev, 477struct resource *pnp_get_resource(struct pnp_dev *dev,
@@ -590,6 +591,30 @@ struct pnp_resource *pnp_add_mem_resource(struct pnp_dev *dev,
590 return pnp_res; 591 return pnp_res;
591} 592}
592 593
594struct pnp_resource *pnp_add_bus_resource(struct pnp_dev *dev,
595 resource_size_t start,
596 resource_size_t end)
597{
598 struct pnp_resource *pnp_res;
599 struct resource *res;
600
601 pnp_res = pnp_new_resource(dev);
602 if (!pnp_res) {
603 dev_err(&dev->dev, "can't add resource for BUS %#llx-%#llx\n",
604 (unsigned long long) start,
605 (unsigned long long) end);
606 return NULL;
607 }
608
609 res = &pnp_res->res;
610 res->flags = IORESOURCE_BUS;
611 res->start = start;
612 res->end = end;
613
614 pnp_dbg(&dev->dev, " add %pr\n", res);
615 return pnp_res;
616}
617
593/* 618/*
594 * Determine whether the specified resource is a possible configuration 619 * Determine whether the specified resource is a possible configuration
595 * for this device. 620 * for this device.
diff --git a/drivers/pnp/support.c b/drivers/pnp/support.c
index 9585c1c1cc36..f5beb24d036a 100644
--- a/drivers/pnp/support.c
+++ b/drivers/pnp/support.c
@@ -69,8 +69,10 @@ char *pnp_resource_type_name(struct resource *res)
69 return "irq"; 69 return "irq";
70 case IORESOURCE_DMA: 70 case IORESOURCE_DMA:
71 return "dma"; 71 return "dma";
72 case IORESOURCE_BUS:
73 return "bus";
72 } 74 }
73 return NULL; 75 return "unknown";
74} 76}
75 77
76void dbg_pnp_show_resources(struct pnp_dev *dev, char *desc) 78void dbg_pnp_show_resources(struct pnp_dev *dev, char *desc)
diff --git a/drivers/power/power_supply_sysfs.c b/drivers/power/power_supply_sysfs.c
index c790e0c77d4b..ff05e6189768 100644
--- a/drivers/power/power_supply_sysfs.c
+++ b/drivers/power/power_supply_sysfs.c
@@ -99,6 +99,7 @@ static struct device_attribute power_supply_attrs[] = {
99 POWER_SUPPLY_ATTR(present), 99 POWER_SUPPLY_ATTR(present),
100 POWER_SUPPLY_ATTR(online), 100 POWER_SUPPLY_ATTR(online),
101 POWER_SUPPLY_ATTR(technology), 101 POWER_SUPPLY_ATTR(technology),
102 POWER_SUPPLY_ATTR(cycle_count),
102 POWER_SUPPLY_ATTR(voltage_max), 103 POWER_SUPPLY_ATTR(voltage_max),
103 POWER_SUPPLY_ATTR(voltage_min), 104 POWER_SUPPLY_ATTR(voltage_min),
104 POWER_SUPPLY_ATTR(voltage_max_design), 105 POWER_SUPPLY_ATTR(voltage_max_design),
diff --git a/include/acpi/processor.h b/include/acpi/processor.h
index 1172c27adadf..86825ddbe14e 100644
--- a/include/acpi/processor.h
+++ b/include/acpi/processor.h
@@ -320,8 +320,16 @@ static inline int acpi_processor_get_bios_limit(int cpu, unsigned int *limit)
320 320
321#endif /* CONFIG_CPU_FREQ */ 321#endif /* CONFIG_CPU_FREQ */
322 322
323/* in processor_pdc.c */ 323/* in processor_core.c */
324void acpi_processor_set_pdc(acpi_handle handle); 324void acpi_processor_set_pdc(acpi_handle handle);
325#ifdef CONFIG_SMP
326int acpi_get_cpuid(acpi_handle, int type, u32 acpi_id);
327#else
328static inline int acpi_get_cpuid(acpi_handle handle, int type, u32 acpi_id)
329{
330 return -1;
331}
332#endif
325 333
326/* in processor_throttling.c */ 334/* in processor_throttling.c */
327int acpi_processor_tstate_has_changed(struct acpi_processor *pr); 335int acpi_processor_tstate_has_changed(struct acpi_processor *pr);
diff --git a/include/linux/ioport.h b/include/linux/ioport.h
index dda98410d588..71ab79da7e7f 100644
--- a/include/linux/ioport.h
+++ b/include/linux/ioport.h
@@ -34,22 +34,24 @@ struct resource_list {
34 */ 34 */
35#define IORESOURCE_BITS 0x000000ff /* Bus-specific bits */ 35#define IORESOURCE_BITS 0x000000ff /* Bus-specific bits */
36 36
37#define IORESOURCE_TYPE_BITS 0x00000f00 /* Resource type */ 37#define IORESOURCE_TYPE_BITS 0x00001f00 /* Resource type */
38#define IORESOURCE_IO 0x00000100 38#define IORESOURCE_IO 0x00000100
39#define IORESOURCE_MEM 0x00000200 39#define IORESOURCE_MEM 0x00000200
40#define IORESOURCE_IRQ 0x00000400 40#define IORESOURCE_IRQ 0x00000400
41#define IORESOURCE_DMA 0x00000800 41#define IORESOURCE_DMA 0x00000800
42#define IORESOURCE_BUS 0x00001000
42 43
43#define IORESOURCE_PREFETCH 0x00001000 /* No side effects */ 44#define IORESOURCE_PREFETCH 0x00002000 /* No side effects */
44#define IORESOURCE_READONLY 0x00002000 45#define IORESOURCE_READONLY 0x00004000
45#define IORESOURCE_CACHEABLE 0x00004000 46#define IORESOURCE_CACHEABLE 0x00008000
46#define IORESOURCE_RANGELENGTH 0x00008000 47#define IORESOURCE_RANGELENGTH 0x00010000
47#define IORESOURCE_SHADOWABLE 0x00010000 48#define IORESOURCE_SHADOWABLE 0x00020000
48 49
49#define IORESOURCE_SIZEALIGN 0x00020000 /* size indicates alignment */ 50#define IORESOURCE_SIZEALIGN 0x00040000 /* size indicates alignment */
50#define IORESOURCE_STARTALIGN 0x00040000 /* start field is alignment */ 51#define IORESOURCE_STARTALIGN 0x00080000 /* start field is alignment */
51 52
52#define IORESOURCE_MEM_64 0x00100000 53#define IORESOURCE_MEM_64 0x00100000
54#define IORESOURCE_WINDOW 0x00200000 /* forwarded by bridge */
53 55
54#define IORESOURCE_EXCLUSIVE 0x08000000 /* Userland may not map this resource */ 56#define IORESOURCE_EXCLUSIVE 0x08000000 /* Userland may not map this resource */
55#define IORESOURCE_DISABLED 0x10000000 57#define IORESOURCE_DISABLED 0x10000000
diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h
index b5d096d3a9be..ebd2b8fb00d0 100644
--- a/include/linux/power_supply.h
+++ b/include/linux/power_supply.h
@@ -82,6 +82,7 @@ enum power_supply_property {
82 POWER_SUPPLY_PROP_PRESENT, 82 POWER_SUPPLY_PROP_PRESENT,
83 POWER_SUPPLY_PROP_ONLINE, 83 POWER_SUPPLY_PROP_ONLINE,
84 POWER_SUPPLY_PROP_TECHNOLOGY, 84 POWER_SUPPLY_PROP_TECHNOLOGY,
85 POWER_SUPPLY_PROP_CYCLE_COUNT,
85 POWER_SUPPLY_PROP_VOLTAGE_MAX, 86 POWER_SUPPLY_PROP_VOLTAGE_MAX,
86 POWER_SUPPLY_PROP_VOLTAGE_MIN, 87 POWER_SUPPLY_PROP_VOLTAGE_MIN,
87 POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN, 88 POWER_SUPPLY_PROP_VOLTAGE_MAX_DESIGN,
diff --git a/lib/vsprintf.c b/lib/vsprintf.c
index 0d461c7c14db..24112e5a5780 100644
--- a/lib/vsprintf.c
+++ b/lib/vsprintf.c
@@ -609,6 +609,12 @@ static char *resource_string(char *buf, char *end, struct resource *res,
609 .precision = -1, 609 .precision = -1,
610 .flags = SPECIAL | SMALL | ZEROPAD, 610 .flags = SPECIAL | SMALL | ZEROPAD,
611 }; 611 };
612 static const struct printf_spec bus_spec = {
613 .base = 16,
614 .field_width = 2,
615 .precision = -1,
616 .flags = SMALL | ZEROPAD,
617 };
612 static const struct printf_spec dec_spec = { 618 static const struct printf_spec dec_spec = {
613 .base = 10, 619 .base = 10,
614 .precision = -1, 620 .precision = -1,
@@ -629,7 +635,7 @@ static char *resource_string(char *buf, char *end, struct resource *res,
629 * 64-bit res (sizeof==8): 20 chars in dec, 18 in hex ("0x" + 16) */ 635 * 64-bit res (sizeof==8): 20 chars in dec, 18 in hex ("0x" + 16) */
630#define RSRC_BUF_SIZE ((2 * sizeof(resource_size_t)) + 4) 636#define RSRC_BUF_SIZE ((2 * sizeof(resource_size_t)) + 4)
631#define FLAG_BUF_SIZE (2 * sizeof(res->flags)) 637#define FLAG_BUF_SIZE (2 * sizeof(res->flags))
632#define DECODED_BUF_SIZE sizeof("[mem - 64bit pref disabled]") 638#define DECODED_BUF_SIZE sizeof("[mem - 64bit pref window disabled]")
633#define RAW_BUF_SIZE sizeof("[mem - flags 0x]") 639#define RAW_BUF_SIZE sizeof("[mem - flags 0x]")
634 char sym[max(2*RSRC_BUF_SIZE + DECODED_BUF_SIZE, 640 char sym[max(2*RSRC_BUF_SIZE + DECODED_BUF_SIZE,
635 2*RSRC_BUF_SIZE + FLAG_BUF_SIZE + RAW_BUF_SIZE)]; 641 2*RSRC_BUF_SIZE + FLAG_BUF_SIZE + RAW_BUF_SIZE)];
@@ -651,6 +657,9 @@ static char *resource_string(char *buf, char *end, struct resource *res,
651 } else if (res->flags & IORESOURCE_DMA) { 657 } else if (res->flags & IORESOURCE_DMA) {
652 p = string(p, pend, "dma ", str_spec); 658 p = string(p, pend, "dma ", str_spec);
653 specp = &dec_spec; 659 specp = &dec_spec;
660 } else if (res->flags & IORESOURCE_BUS) {
661 p = string(p, pend, "bus ", str_spec);
662 specp = &bus_spec;
654 } else { 663 } else {
655 p = string(p, pend, "??? ", str_spec); 664 p = string(p, pend, "??? ", str_spec);
656 specp = &mem_spec; 665 specp = &mem_spec;
@@ -666,6 +675,8 @@ static char *resource_string(char *buf, char *end, struct resource *res,
666 p = string(p, pend, " 64bit", str_spec); 675 p = string(p, pend, " 64bit", str_spec);
667 if (res->flags & IORESOURCE_PREFETCH) 676 if (res->flags & IORESOURCE_PREFETCH)
668 p = string(p, pend, " pref", str_spec); 677 p = string(p, pend, " pref", str_spec);
678 if (res->flags & IORESOURCE_WINDOW)
679 p = string(p, pend, " window", str_spec);
669 if (res->flags & IORESOURCE_DISABLED) 680 if (res->flags & IORESOURCE_DISABLED)
670 p = string(p, pend, " disabled", str_spec); 681 p = string(p, pend, " disabled", str_spec);
671 } else { 682 } else {
generated by cgit v1.2.2 (git 2.25.0) at 2025-12-25 21:04:49 -0500