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authorLinus Torvalds <torvalds@linux-foundation.org>2011-11-07 13:13:52 -0500
committerLinus Torvalds <torvalds@linux-foundation.org>2011-11-07 13:13:52 -0500
commit3c00303206c3a1ccd86579efdc90bc35f140962e (patch)
tree66170c84b5ddaeb102aea3530517a26657b6ea29
parent83dbb15e9cd78a3619e3db36777e2f81d09b2914 (diff)
parentefb90582c575084723cc14302c1300cb26c7e01f (diff)
Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux
* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux: cpuidle: Single/Global registration of idle states cpuidle: Split cpuidle_state structure and move per-cpu statistics fields cpuidle: Remove CPUIDLE_FLAG_IGNORE and dev->prepare() cpuidle: Move dev->last_residency update to driver enter routine; remove dev->last_state ACPI: Fix CONFIG_ACPI_DOCK=n compiler warning ACPI: Export FADT pm_profile integer value to userspace thermal: Prevent polling from happening during system suspend ACPI: Drop ACPI_NO_HARDWARE_INIT ACPI atomicio: Convert width in bits to bytes in __acpi_ioremap_fast() PNPACPI: Simplify disabled resource registration ACPI: Fix possible recursive locking in hwregs.c ACPI: use kstrdup() mrst pmu: update comment tools/power turbostat: less verbose debugging
Diffstat
-rw-r--r--Documentation/ABI/stable/sysfs-acpi-pmprofile22
-rw-r--r--arch/arm/mach-at91/cpuidle.c41
-rw-r--r--arch/arm/mach-davinci/cpuidle.c51
-rw-r--r--arch/arm/mach-exynos/cpuidle.c30
-rw-r--r--arch/arm/mach-kirkwood/cpuidle.c42
-rw-r--r--arch/arm/mach-omap2/cpuidle34xx.c133
-rw-r--r--arch/sh/kernel/cpu/shmobile/cpuidle.c28
-rw-r--r--arch/x86/platform/mrst/pmu.c2
-rw-r--r--drivers/acpi/acpica/hwregs.c11
-rw-r--r--drivers/acpi/atomicio.c2
-rw-r--r--drivers/acpi/bus.c8
-rw-r--r--drivers/acpi/processor_driver.c20
-rw-r--r--drivers/acpi/processor_idle.c251
-rw-r--r--drivers/acpi/scan.c3
-rw-r--r--drivers/acpi/sysfs.c14
-rw-r--r--drivers/cpuidle/cpuidle.c86
-rw-r--r--drivers/cpuidle/driver.c25
-rw-r--r--drivers/cpuidle/governors/ladder.c41
-rw-r--r--drivers/cpuidle/governors/menu.c29
-rw-r--r--drivers/cpuidle/sysfs.c22
-rw-r--r--drivers/idle/intel_idle.c130
-rw-r--r--drivers/pnp/pnpacpi/rsparser.c62
-rw-r--r--drivers/thermal/thermal_sys.c4
-rw-r--r--include/acpi/acpi_drivers.h2
-rw-r--r--include/acpi/actypes.h1
-rw-r--r--include/acpi/processor.h1
-rw-r--r--include/linux/cpuidle.h52
-rw-r--r--tools/power/x86/turbostat/turbostat.c28
28 files changed, 729 insertions, 412 deletions
diff --git a/Documentation/ABI/stable/sysfs-acpi-pmprofile b/Documentation/ABI/stable/sysfs-acpi-pmprofile
new file mode 100644
index 000000000000..964c7a8afb26
--- /dev/null
+++ b/Documentation/ABI/stable/sysfs-acpi-pmprofile
@@ -0,0 +1,22 @@
1What: /sys/firmware/acpi/pm_profile
2Date: 03-Nov-2011
3KernelVersion: v3.2
4Contact: linux-acpi@vger.kernel.org
5Description: The ACPI pm_profile sysfs interface exports the platform
6 power management (and performance) requirement expectations
7 as provided by BIOS. The integer value is directly passed as
8 retrieved from the FADT ACPI table.
9Values: For possible values see ACPI specification:
10 5.2.9 Fixed ACPI Description Table (FADT)
11 Field: Preferred_PM_Profile
12
13 Currently these values are defined by spec:
14 0 Unspecified
15 1 Desktop
16 2 Mobile
17 3 Workstation
18 4 Enterprise Server
19 5 SOHO Server
20 6 Appliance PC
21 7 Performance Server
22 >7 Reserved
diff --git a/arch/arm/mach-at91/cpuidle.c b/arch/arm/mach-at91/cpuidle.c
index f474272c0eac..a851e6c98421 100644
--- a/arch/arm/mach-at91/cpuidle.c
+++ b/arch/arm/mach-at91/cpuidle.c
@@ -34,7 +34,8 @@ static struct cpuidle_driver at91_idle_driver = {
34 34
35/* Actual code that puts the SoC in different idle states */ 35/* Actual code that puts the SoC in different idle states */
36static int at91_enter_idle(struct cpuidle_device *dev, 36static int at91_enter_idle(struct cpuidle_device *dev,
37 struct cpuidle_state *state) 37 struct cpuidle_driver *drv,
38 int index)
38{ 39{
39 struct timeval before, after; 40 struct timeval before, after;
40 int idle_time; 41 int idle_time;
@@ -42,10 +43,10 @@ static int at91_enter_idle(struct cpuidle_device *dev,
42 43
43 local_irq_disable(); 44 local_irq_disable();
44 do_gettimeofday(&before); 45 do_gettimeofday(&before);
45 if (state == &dev->states[0]) 46 if (index == 0)
46 /* Wait for interrupt state */ 47 /* Wait for interrupt state */
47 cpu_do_idle(); 48 cpu_do_idle();
48 else if (state == &dev->states[1]) { 49 else if (index == 1) {
49 asm("b 1f; .align 5; 1:"); 50 asm("b 1f; .align 5; 1:");
50 asm("mcr p15, 0, r0, c7, c10, 4"); /* drain write buffer */ 51 asm("mcr p15, 0, r0, c7, c10, 4"); /* drain write buffer */
51 saved_lpr = sdram_selfrefresh_enable(); 52 saved_lpr = sdram_selfrefresh_enable();
@@ -56,34 +57,38 @@ static int at91_enter_idle(struct cpuidle_device *dev,
56 local_irq_enable(); 57 local_irq_enable();
57 idle_time = (after.tv_sec - before.tv_sec) * USEC_PER_SEC + 58 idle_time = (after.tv_sec - before.tv_sec) * USEC_PER_SEC +
58 (after.tv_usec - before.tv_usec); 59 (after.tv_usec - before.tv_usec);
59 return idle_time; 60
61 dev->last_residency = idle_time;
62 return index;
60} 63}
61 64
62/* Initialize CPU idle by registering the idle states */ 65/* Initialize CPU idle by registering the idle states */
63static int at91_init_cpuidle(void) 66static int at91_init_cpuidle(void)
64{ 67{
65 struct cpuidle_device *device; 68 struct cpuidle_device *device;
66 69 struct cpuidle_driver *driver = &at91_idle_driver;
67 cpuidle_register_driver(&at91_idle_driver);
68 70
69 device = &per_cpu(at91_cpuidle_device, smp_processor_id()); 71 device = &per_cpu(at91_cpuidle_device, smp_processor_id());
70 device->state_count = AT91_MAX_STATES; 72 device->state_count = AT91_MAX_STATES;
73 driver->state_count = AT91_MAX_STATES;
71 74
72 /* Wait for interrupt state */ 75 /* Wait for interrupt state */
73 device->states[0].enter = at91_enter_idle; 76 driver->states[0].enter = at91_enter_idle;
74 device->states[0].exit_latency = 1; 77 driver->states[0].exit_latency = 1;
75 device->states[0].target_residency = 10000; 78 driver->states[0].target_residency = 10000;
76 device->states[0].flags = CPUIDLE_FLAG_TIME_VALID; 79 driver->states[0].flags = CPUIDLE_FLAG_TIME_VALID;
77 strcpy(device->states[0].name, "WFI"); 80 strcpy(driver->states[0].name, "WFI");
78 strcpy(device->states[0].desc, "Wait for interrupt"); 81 strcpy(driver->states[0].desc, "Wait for interrupt");
79 82
80 /* Wait for interrupt and RAM self refresh state */ 83 /* Wait for interrupt and RAM self refresh state */
81 device->states[1].enter = at91_enter_idle; 84 driver->states[1].enter = at91_enter_idle;
82 device->states[1].exit_latency = 10; 85 driver->states[1].exit_latency = 10;
83 device->states[1].target_residency = 10000; 86 driver->states[1].target_residency = 10000;
84 device->states[1].flags = CPUIDLE_FLAG_TIME_VALID; 87 driver->states[1].flags = CPUIDLE_FLAG_TIME_VALID;
85 strcpy(device->states[1].name, "RAM_SR"); 88 strcpy(driver->states[1].name, "RAM_SR");
86 strcpy(device->states[1].desc, "WFI and RAM Self Refresh"); 89 strcpy(driver->states[1].desc, "WFI and RAM Self Refresh");
90
91 cpuidle_register_driver(&at91_idle_driver);
87 92
88 if (cpuidle_register_device(device)) { 93 if (cpuidle_register_device(device)) {
89 printk(KERN_ERR "at91_init_cpuidle: Failed registering\n"); 94 printk(KERN_ERR "at91_init_cpuidle: Failed registering\n");
diff --git a/arch/arm/mach-davinci/cpuidle.c b/arch/arm/mach-davinci/cpuidle.c
index 60d2f4871afa..a30c7c5a6d83 100644
--- a/arch/arm/mach-davinci/cpuidle.c
+++ b/arch/arm/mach-davinci/cpuidle.c
@@ -79,9 +79,11 @@ static struct davinci_ops davinci_states[DAVINCI_CPUIDLE_MAX_STATES] = {
79 79
80/* Actual code that puts the SoC in different idle states */ 80/* Actual code that puts the SoC in different idle states */
81static int davinci_enter_idle(struct cpuidle_device *dev, 81static int davinci_enter_idle(struct cpuidle_device *dev,
82 struct cpuidle_state *state) 82 struct cpuidle_driver *drv,
83 int index)
83{ 84{
84 struct davinci_ops *ops = cpuidle_get_statedata(state); 85 struct cpuidle_state_usage *state_usage = &dev->states_usage[index];
86 struct davinci_ops *ops = cpuidle_get_statedata(state_usage);
85 struct timeval before, after; 87 struct timeval before, after;
86 int idle_time; 88 int idle_time;
87 89
@@ -99,13 +101,17 @@ static int davinci_enter_idle(struct cpuidle_device *dev,
99 local_irq_enable(); 101 local_irq_enable();
100 idle_time = (after.tv_sec - before.tv_sec) * USEC_PER_SEC + 102 idle_time = (after.tv_sec - before.tv_sec) * USEC_PER_SEC +
101 (after.tv_usec - before.tv_usec); 103 (after.tv_usec - before.tv_usec);
102 return idle_time; 104
105 dev->last_residency = idle_time;
106
107 return index;
103} 108}
104 109
105static int __init davinci_cpuidle_probe(struct platform_device *pdev) 110static int __init davinci_cpuidle_probe(struct platform_device *pdev)
106{ 111{
107 int ret; 112 int ret;
108 struct cpuidle_device *device; 113 struct cpuidle_device *device;
114 struct cpuidle_driver *driver = &davinci_idle_driver;
109 struct davinci_cpuidle_config *pdata = pdev->dev.platform_data; 115 struct davinci_cpuidle_config *pdata = pdev->dev.platform_data;
110 116
111 device = &per_cpu(davinci_cpuidle_device, smp_processor_id()); 117 device = &per_cpu(davinci_cpuidle_device, smp_processor_id());
@@ -117,32 +123,33 @@ static int __init davinci_cpuidle_probe(struct platform_device *pdev)
117 123
118 ddr2_reg_base = pdata->ddr2_ctlr_base; 124 ddr2_reg_base = pdata->ddr2_ctlr_base;
119 125
120 ret = cpuidle_register_driver(&davinci_idle_driver);
121 if (ret) {
122 dev_err(&pdev->dev, "failed to register driver\n");
123 return ret;
124 }
125
126 /* Wait for interrupt state */ 126 /* Wait for interrupt state */
127 device->states[0].enter = davinci_enter_idle; 127 driver->states[0].enter = davinci_enter_idle;
128 device->states[0].exit_latency = 1; 128 driver->states[0].exit_latency = 1;
129 device->states[0].target_residency = 10000; 129 driver->states[0].target_residency = 10000;
130 device->states[0].flags = CPUIDLE_FLAG_TIME_VALID; 130 driver->states[0].flags = CPUIDLE_FLAG_TIME_VALID;
131 strcpy(device->states[0].name, "WFI"); 131 strcpy(driver->states[0].name, "WFI");
132 strcpy(device->states[0].desc, "Wait for interrupt"); 132 strcpy(driver->states[0].desc, "Wait for interrupt");
133 133
134 /* Wait for interrupt and DDR self refresh state */ 134 /* Wait for interrupt and DDR self refresh state */
135 device->states[1].enter = davinci_enter_idle; 135 driver->states[1].enter = davinci_enter_idle;
136 device->states[1].exit_latency = 10; 136 driver->states[1].exit_latency = 10;
137 device->states[1].target_residency = 10000; 137 driver->states[1].target_residency = 10000;
138 device->states[1].flags = CPUIDLE_FLAG_TIME_VALID; 138 driver->states[1].flags = CPUIDLE_FLAG_TIME_VALID;
139 strcpy(device->states[1].name, "DDR SR"); 139 strcpy(driver->states[1].name, "DDR SR");
140 strcpy(device->states[1].desc, "WFI and DDR Self Refresh"); 140 strcpy(driver->states[1].desc, "WFI and DDR Self Refresh");
141 if (pdata->ddr2_pdown) 141 if (pdata->ddr2_pdown)
142 davinci_states[1].flags |= DAVINCI_CPUIDLE_FLAGS_DDR2_PWDN; 142 davinci_states[1].flags |= DAVINCI_CPUIDLE_FLAGS_DDR2_PWDN;
143 cpuidle_set_statedata(&device->states[1], &davinci_states[1]); 143 cpuidle_set_statedata(&device->states_usage[1], &davinci_states[1]);
144 144
145 device->state_count = DAVINCI_CPUIDLE_MAX_STATES; 145 device->state_count = DAVINCI_CPUIDLE_MAX_STATES;
146 driver->state_count = DAVINCI_CPUIDLE_MAX_STATES;
147
148 ret = cpuidle_register_driver(&davinci_idle_driver);
149 if (ret) {
150 dev_err(&pdev->dev, "failed to register driver\n");
151 return ret;
152 }
146 153
147 ret = cpuidle_register_device(device); 154 ret = cpuidle_register_device(device);
148 if (ret) { 155 if (ret) {
diff --git a/arch/arm/mach-exynos/cpuidle.c b/arch/arm/mach-exynos/cpuidle.c
index bf7e96f2793a..35f6502144ae 100644
--- a/arch/arm/mach-exynos/cpuidle.c
+++ b/arch/arm/mach-exynos/cpuidle.c
@@ -16,7 +16,8 @@
16#include <asm/proc-fns.h> 16#include <asm/proc-fns.h>
17 17
18static int exynos4_enter_idle(struct cpuidle_device *dev, 18static int exynos4_enter_idle(struct cpuidle_device *dev,
19 struct cpuidle_state *state); 19 struct cpuidle_driver *drv,
20 int index);
20 21
21static struct cpuidle_state exynos4_cpuidle_set[] = { 22static struct cpuidle_state exynos4_cpuidle_set[] = {
22 [0] = { 23 [0] = {
@@ -37,7 +38,8 @@ static struct cpuidle_driver exynos4_idle_driver = {
37}; 38};
38 39
39static int exynos4_enter_idle(struct cpuidle_device *dev, 40static int exynos4_enter_idle(struct cpuidle_device *dev,
40 struct cpuidle_state *state) 41 struct cpuidle_driver *drv,
42 int index)
41{ 43{
42 struct timeval before, after; 44 struct timeval before, after;
43 int idle_time; 45 int idle_time;
@@ -52,29 +54,31 @@ static int exynos4_enter_idle(struct cpuidle_device *dev,
52 idle_time = (after.tv_sec - before.tv_sec) * USEC_PER_SEC + 54 idle_time = (after.tv_sec - before.tv_sec) * USEC_PER_SEC +
53 (after.tv_usec - before.tv_usec); 55 (after.tv_usec - before.tv_usec);
54 56
55 return idle_time; 57 dev->last_residency = idle_time;
58 return index;
56} 59}
57 60
58static int __init exynos4_init_cpuidle(void) 61static int __init exynos4_init_cpuidle(void)
59{ 62{
60 int i, max_cpuidle_state, cpu_id; 63 int i, max_cpuidle_state, cpu_id;
61 struct cpuidle_device *device; 64 struct cpuidle_device *device;
62 65 struct cpuidle_driver *drv = &exynos4_idle_driver;
66
67 /* Setup cpuidle driver */
68 drv->state_count = (sizeof(exynos4_cpuidle_set) /
69 sizeof(struct cpuidle_state));
70 max_cpuidle_state = drv->state_count;
71 for (i = 0; i < max_cpuidle_state; i++) {
72 memcpy(&drv->states[i], &exynos4_cpuidle_set[i],
73 sizeof(struct cpuidle_state));
74 }
63 cpuidle_register_driver(&exynos4_idle_driver); 75 cpuidle_register_driver(&exynos4_idle_driver);
64 76
65 for_each_cpu(cpu_id, cpu_online_mask) { 77 for_each_cpu(cpu_id, cpu_online_mask) {
66 device = &per_cpu(exynos4_cpuidle_device, cpu_id); 78 device = &per_cpu(exynos4_cpuidle_device, cpu_id);
67 device->cpu = cpu_id; 79 device->cpu = cpu_id;
68 80
69 device->state_count = (sizeof(exynos4_cpuidle_set) / 81 device->state_count = drv->state_count;
70 sizeof(struct cpuidle_state));
71
72 max_cpuidle_state = device->state_count;
73
74 for (i = 0; i < max_cpuidle_state; i++) {
75 memcpy(&device->states[i], &exynos4_cpuidle_set[i],
76 sizeof(struct cpuidle_state));
77 }
78 82
79 if (cpuidle_register_device(device)) { 83 if (cpuidle_register_device(device)) {
80 printk(KERN_ERR "CPUidle register device failed\n,"); 84 printk(KERN_ERR "CPUidle register device failed\n,");
diff --git a/arch/arm/mach-kirkwood/cpuidle.c b/arch/arm/mach-kirkwood/cpuidle.c
index 864e569f684e..7088180b018b 100644
--- a/arch/arm/mach-kirkwood/cpuidle.c
+++ b/arch/arm/mach-kirkwood/cpuidle.c
@@ -33,17 +33,18 @@ static DEFINE_PER_CPU(struct cpuidle_device, kirkwood_cpuidle_device);
33 33
34/* Actual code that puts the SoC in different idle states */ 34/* Actual code that puts the SoC in different idle states */
35static int kirkwood_enter_idle(struct cpuidle_device *dev, 35static int kirkwood_enter_idle(struct cpuidle_device *dev,
36 struct cpuidle_state *state) 36 struct cpuidle_driver *drv,
37 int index)
37{ 38{
38 struct timeval before, after; 39 struct timeval before, after;
39 int idle_time; 40 int idle_time;
40 41
41 local_irq_disable(); 42 local_irq_disable();
42 do_gettimeofday(&before); 43 do_gettimeofday(&before);
43 if (state == &dev->states[0]) 44 if (index == 0)
44 /* Wait for interrupt state */ 45 /* Wait for interrupt state */
45 cpu_do_idle(); 46 cpu_do_idle();
46 else if (state == &dev->states[1]) { 47 else if (index == 1) {
47 /* 48 /*
48 * Following write will put DDR in self refresh. 49 * Following write will put DDR in self refresh.
49 * Note that we have 256 cycles before DDR puts it 50 * Note that we have 256 cycles before DDR puts it
@@ -58,35 +59,40 @@ static int kirkwood_enter_idle(struct cpuidle_device *dev,
58 local_irq_enable(); 59 local_irq_enable();
59 idle_time = (after.tv_sec - before.tv_sec) * USEC_PER_SEC + 60 idle_time = (after.tv_sec - before.tv_sec) * USEC_PER_SEC +
60 (after.tv_usec - before.tv_usec); 61 (after.tv_usec - before.tv_usec);
61 return idle_time; 62
63 /* Update last residency */
64 dev->last_residency = idle_time;
65
66 return index;
62} 67}
63 68
64/* Initialize CPU idle by registering the idle states */ 69/* Initialize CPU idle by registering the idle states */
65static int kirkwood_init_cpuidle(void) 70static int kirkwood_init_cpuidle(void)
66{ 71{
67 struct cpuidle_device *device; 72 struct cpuidle_device *device;
68 73 struct cpuidle_driver *driver = &kirkwood_idle_driver;
69 cpuidle_register_driver(&kirkwood_idle_driver);
70 74
71 device = &per_cpu(kirkwood_cpuidle_device, smp_processor_id()); 75 device = &per_cpu(kirkwood_cpuidle_device, smp_processor_id());
72 device->state_count = KIRKWOOD_MAX_STATES; 76 device->state_count = KIRKWOOD_MAX_STATES;
77 driver->state_count = KIRKWOOD_MAX_STATES;
73 78
74 /* Wait for interrupt state */ 79 /* Wait for interrupt state */
75 device->states[0].enter = kirkwood_enter_idle; 80 driver->states[0].enter = kirkwood_enter_idle;
76 device->states[0].exit_latency = 1; 81 driver->states[0].exit_latency = 1;
77 device->states[0].target_residency = 10000; 82 driver->states[0].target_residency = 10000;
78 device->states[0].flags = CPUIDLE_FLAG_TIME_VALID; 83 driver->states[0].flags = CPUIDLE_FLAG_TIME_VALID;
79 strcpy(device->states[0].name, "WFI"); 84 strcpy(driver->states[0].name, "WFI");
80 strcpy(device->states[0].desc, "Wait for interrupt"); 85 strcpy(driver->states[0].desc, "Wait for interrupt");
81 86
82 /* Wait for interrupt and DDR self refresh state */ 87 /* Wait for interrupt and DDR self refresh state */
83 device->states[1].enter = kirkwood_enter_idle; 88 driver->states[1].enter = kirkwood_enter_idle;
84 device->states[1].exit_latency = 10; 89 driver->states[1].exit_latency = 10;
85 device->states[1].target_residency = 10000; 90 driver->states[1].target_residency = 10000;
86 device->states[1].flags = CPUIDLE_FLAG_TIME_VALID; 91 driver->states[1].flags = CPUIDLE_FLAG_TIME_VALID;
87 strcpy(device->states[1].name, "DDR SR"); 92 strcpy(driver->states[1].name, "DDR SR");
88 strcpy(device->states[1].desc, "WFI and DDR Self Refresh"); 93 strcpy(driver->states[1].desc, "WFI and DDR Self Refresh");
89 94
95 cpuidle_register_driver(&kirkwood_idle_driver);
90 if (cpuidle_register_device(device)) { 96 if (cpuidle_register_device(device)) {
91 printk(KERN_ERR "kirkwood_init_cpuidle: Failed registering\n"); 97 printk(KERN_ERR "kirkwood_init_cpuidle: Failed registering\n");
92 return -EIO; 98 return -EIO;
diff --git a/arch/arm/mach-omap2/cpuidle34xx.c b/arch/arm/mach-omap2/cpuidle34xx.c
index 4bf6e6e8b100..1fe35c24fba2 100644
--- a/arch/arm/mach-omap2/cpuidle34xx.c
+++ b/arch/arm/mach-omap2/cpuidle34xx.c
@@ -88,17 +88,21 @@ static int _cpuidle_deny_idle(struct powerdomain *pwrdm,
88/** 88/**
89 * omap3_enter_idle - Programs OMAP3 to enter the specified state 89 * omap3_enter_idle - Programs OMAP3 to enter the specified state
90 * @dev: cpuidle device 90 * @dev: cpuidle device
91 * @state: The target state to be programmed 91 * @drv: cpuidle driver
92 * @index: the index of state to be entered
92 * 93 *
93 * Called from the CPUidle framework to program the device to the 94 * Called from the CPUidle framework to program the device to the
94 * specified target state selected by the governor. 95 * specified target state selected by the governor.
95 */ 96 */
96static int omap3_enter_idle(struct cpuidle_device *dev, 97static int omap3_enter_idle(struct cpuidle_device *dev,
97 struct cpuidle_state *state) 98 struct cpuidle_driver *drv,
99 int index)
98{ 100{
99 struct omap3_idle_statedata *cx = cpuidle_get_statedata(state); 101 struct omap3_idle_statedata *cx =
102 cpuidle_get_statedata(&dev->states_usage[index]);
100 struct timespec ts_preidle, ts_postidle, ts_idle; 103 struct timespec ts_preidle, ts_postidle, ts_idle;
101 u32 mpu_state = cx->mpu_state, core_state = cx->core_state; 104 u32 mpu_state = cx->mpu_state, core_state = cx->core_state;
105 int idle_time;
102 106
103 /* Used to keep track of the total time in idle */ 107 /* Used to keep track of the total time in idle */
104 getnstimeofday(&ts_preidle); 108 getnstimeofday(&ts_preidle);
@@ -113,7 +117,7 @@ static int omap3_enter_idle(struct cpuidle_device *dev,
113 goto return_sleep_time; 117 goto return_sleep_time;
114 118
115 /* Deny idle for C1 */ 119 /* Deny idle for C1 */
116 if (state == &dev->states[0]) { 120 if (index == 0) {
117 pwrdm_for_each_clkdm(mpu_pd, _cpuidle_deny_idle); 121 pwrdm_for_each_clkdm(mpu_pd, _cpuidle_deny_idle);
118 pwrdm_for_each_clkdm(core_pd, _cpuidle_deny_idle); 122 pwrdm_for_each_clkdm(core_pd, _cpuidle_deny_idle);
119 } 123 }
@@ -122,7 +126,7 @@ static int omap3_enter_idle(struct cpuidle_device *dev,
122 omap_sram_idle(); 126 omap_sram_idle();
123 127
124 /* Re-allow idle for C1 */ 128 /* Re-allow idle for C1 */
125 if (state == &dev->states[0]) { 129 if (index == 0) {
126 pwrdm_for_each_clkdm(mpu_pd, _cpuidle_allow_idle); 130 pwrdm_for_each_clkdm(mpu_pd, _cpuidle_allow_idle);
127 pwrdm_for_each_clkdm(core_pd, _cpuidle_allow_idle); 131 pwrdm_for_each_clkdm(core_pd, _cpuidle_allow_idle);
128 } 132 }
@@ -134,28 +138,38 @@ return_sleep_time:
134 local_irq_enable(); 138 local_irq_enable();
135 local_fiq_enable(); 139 local_fiq_enable();
136 140
137 return ts_idle.tv_nsec / NSEC_PER_USEC + ts_idle.tv_sec * USEC_PER_SEC; 141 idle_time = ts_idle.tv_nsec / NSEC_PER_USEC + ts_idle.tv_sec * \
142 USEC_PER_SEC;
143
144 /* Update cpuidle counters */
145 dev->last_residency = idle_time;
146
147 return index;
138} 148}
139 149
140/** 150/**
141 * next_valid_state - Find next valid C-state 151 * next_valid_state - Find next valid C-state
142 * @dev: cpuidle device 152 * @dev: cpuidle device
143 * @state: Currently selected C-state 153 * @drv: cpuidle driver
154 * @index: Index of currently selected c-state
144 * 155 *
145 * If the current state is valid, it is returned back to the caller. 156 * If the state corresponding to index is valid, index is returned back
146 * Else, this function searches for a lower c-state which is still 157 * to the caller. Else, this function searches for a lower c-state which is
147 * valid. 158 * still valid (as defined in omap3_power_states[]) and returns its index.
148 * 159 *
149 * A state is valid if the 'valid' field is enabled and 160 * A state is valid if the 'valid' field is enabled and
150 * if it satisfies the enable_off_mode condition. 161 * if it satisfies the enable_off_mode condition.
151 */ 162 */
152static struct cpuidle_state *next_valid_state(struct cpuidle_device *dev, 163static int next_valid_state(struct cpuidle_device *dev,
153 struct cpuidle_state *curr) 164 struct cpuidle_driver *drv,
165 int index)
154{ 166{
155 struct cpuidle_state *next = NULL; 167 struct cpuidle_state_usage *curr_usage = &dev->states_usage[index];
156 struct omap3_idle_statedata *cx = cpuidle_get_statedata(curr); 168 struct cpuidle_state *curr = &drv->states[index];
169 struct omap3_idle_statedata *cx = cpuidle_get_statedata(curr_usage);
157 u32 mpu_deepest_state = PWRDM_POWER_RET; 170 u32 mpu_deepest_state = PWRDM_POWER_RET;
158 u32 core_deepest_state = PWRDM_POWER_RET; 171 u32 core_deepest_state = PWRDM_POWER_RET;
172 int next_index = -1;
159 173
160 if (enable_off_mode) { 174 if (enable_off_mode) {
161 mpu_deepest_state = PWRDM_POWER_OFF; 175 mpu_deepest_state = PWRDM_POWER_OFF;
@@ -172,20 +186,20 @@ static struct cpuidle_state *next_valid_state(struct cpuidle_device *dev,
172 if ((cx->valid) && 186 if ((cx->valid) &&
173 (cx->mpu_state >= mpu_deepest_state) && 187 (cx->mpu_state >= mpu_deepest_state) &&
174 (cx->core_state >= core_deepest_state)) { 188 (cx->core_state >= core_deepest_state)) {
175 return curr; 189 return index;
176 } else { 190 } else {
177 int idx = OMAP3_NUM_STATES - 1; 191 int idx = OMAP3_NUM_STATES - 1;
178 192
179 /* Reach the current state starting at highest C-state */ 193 /* Reach the current state starting at highest C-state */
180 for (; idx >= 0; idx--) { 194 for (; idx >= 0; idx--) {
181 if (&dev->states[idx] == curr) { 195 if (&drv->states[idx] == curr) {
182 next = &dev->states[idx]; 196 next_index = idx;
183 break; 197 break;
184 } 198 }
185 } 199 }
186 200
187 /* Should never hit this condition */ 201 /* Should never hit this condition */
188 WARN_ON(next == NULL); 202 WARN_ON(next_index == -1);
189 203
190 /* 204 /*
191 * Drop to next valid state. 205 * Drop to next valid state.
@@ -193,41 +207,44 @@ static struct cpuidle_state *next_valid_state(struct cpuidle_device *dev,
193 */ 207 */
194 idx--; 208 idx--;
195 for (; idx >= 0; idx--) { 209 for (; idx >= 0; idx--) {
196 cx = cpuidle_get_statedata(&dev->states[idx]); 210 cx = cpuidle_get_statedata(&dev->states_usage[idx]);
197 if ((cx->valid) && 211 if ((cx->valid) &&
198 (cx->mpu_state >= mpu_deepest_state) && 212 (cx->mpu_state >= mpu_deepest_state) &&
199 (cx->core_state >= core_deepest_state)) { 213 (cx->core_state >= core_deepest_state)) {
200 next = &dev->states[idx]; 214 next_index = idx;
201 break; 215 break;
202 } 216 }
203 } 217 }
204 /* 218 /*
205 * C1 is always valid. 219 * C1 is always valid.
206 * So, no need to check for 'next==NULL' outside this loop. 220 * So, no need to check for 'next_index == -1' outside
221 * this loop.
207 */ 222 */
208 } 223 }
209 224
210 return next; 225 return next_index;
211} 226}
212 227
213/** 228/**
214 * omap3_enter_idle_bm - Checks for any bus activity 229 * omap3_enter_idle_bm - Checks for any bus activity
215 * @dev: cpuidle device 230 * @dev: cpuidle device
216 * @state: The target state to be programmed 231 * @drv: cpuidle driver
232 * @index: array index of target state to be programmed
217 * 233 *
218 * This function checks for any pending activity and then programs 234 * This function checks for any pending activity and then programs
219 * the device to the specified or a safer state. 235 * the device to the specified or a safer state.
220 */ 236 */
221static int omap3_enter_idle_bm(struct cpuidle_device *dev, 237static int omap3_enter_idle_bm(struct cpuidle_device *dev,
222 struct cpuidle_state *state) 238 struct cpuidle_driver *drv,
239 int index)
223{ 240{
224 struct cpuidle_state *new_state; 241 int new_state_idx;
225 u32 core_next_state, per_next_state = 0, per_saved_state = 0, cam_state; 242 u32 core_next_state, per_next_state = 0, per_saved_state = 0, cam_state;
226 struct omap3_idle_statedata *cx; 243 struct omap3_idle_statedata *cx;
227 int ret; 244 int ret;
228 245
229 if (!omap3_can_sleep()) { 246 if (!omap3_can_sleep()) {
230 new_state = dev->safe_state; 247 new_state_idx = drv->safe_state_index;
231 goto select_state; 248 goto select_state;
232 } 249 }
233 250
@@ -237,7 +254,7 @@ static int omap3_enter_idle_bm(struct cpuidle_device *dev,
237 */ 254 */
238 cam_state = pwrdm_read_pwrst(cam_pd); 255 cam_state = pwrdm_read_pwrst(cam_pd);
239 if (cam_state == PWRDM_POWER_ON) { 256 if (cam_state == PWRDM_POWER_ON) {
240 new_state = dev->safe_state; 257 new_state_idx = drv->safe_state_index;
241 goto select_state; 258 goto select_state;
242 } 259 }
243 260
@@ -253,7 +270,7 @@ static int omap3_enter_idle_bm(struct cpuidle_device *dev,
253 * Prevent PER off if CORE is not in retention or off as this 270 * Prevent PER off if CORE is not in retention or off as this
254 * would disable PER wakeups completely. 271 * would disable PER wakeups completely.
255 */ 272 */
256 cx = cpuidle_get_statedata(state); 273 cx = cpuidle_get_statedata(&dev->states_usage[index]);
257 core_next_state = cx->core_state; 274 core_next_state = cx->core_state;
258 per_next_state = per_saved_state = pwrdm_read_next_pwrst(per_pd); 275 per_next_state = per_saved_state = pwrdm_read_next_pwrst(per_pd);
259 if ((per_next_state == PWRDM_POWER_OFF) && 276 if ((per_next_state == PWRDM_POWER_OFF) &&
@@ -264,11 +281,10 @@ static int omap3_enter_idle_bm(struct cpuidle_device *dev,
264 if (per_next_state != per_saved_state) 281 if (per_next_state != per_saved_state)
265 pwrdm_set_next_pwrst(per_pd, per_next_state); 282 pwrdm_set_next_pwrst(per_pd, per_next_state);
266 283
267 new_state = next_valid_state(dev, state); 284 new_state_idx = next_valid_state(dev, drv, index);
268 285
269select_state: 286select_state:
270 dev->last_state = new_state; 287 ret = omap3_enter_idle(dev, drv, new_state_idx);
271 ret = omap3_enter_idle(dev, new_state);
272 288
273 /* Restore original PER state if it was modified */ 289 /* Restore original PER state if it was modified */
274 if (per_next_state != per_saved_state) 290 if (per_next_state != per_saved_state)
@@ -301,22 +317,31 @@ struct cpuidle_driver omap3_idle_driver = {
301 .owner = THIS_MODULE, 317 .owner = THIS_MODULE,
302}; 318};
303 319
304/* Helper to fill the C-state common data and register the driver_data */ 320/* Helper to fill the C-state common data*/
305static inline struct omap3_idle_statedata *_fill_cstate( 321static inline void _fill_cstate(struct cpuidle_driver *drv,
306 struct cpuidle_device *dev,
307 int idx, const char *descr) 322 int idx, const char *descr)
308{ 323{
309 struct omap3_idle_statedata *cx = &omap3_idle_data[idx]; 324 struct cpuidle_state *state = &drv->states[idx];
310 struct cpuidle_state *state = &dev->states[idx];
311 325
312 state->exit_latency = cpuidle_params_table[idx].exit_latency; 326 state->exit_latency = cpuidle_params_table[idx].exit_latency;
313 state->target_residency = cpuidle_params_table[idx].target_residency; 327 state->target_residency = cpuidle_params_table[idx].target_residency;
314 state->flags = CPUIDLE_FLAG_TIME_VALID; 328 state->flags = CPUIDLE_FLAG_TIME_VALID;
315 state->enter = omap3_enter_idle_bm; 329 state->enter = omap3_enter_idle_bm;
316 cx->valid = cpuidle_params_table[idx].valid;
317 sprintf(state->name, "C%d", idx + 1); 330 sprintf(state->name, "C%d", idx + 1);
318 strncpy(state->desc, descr, CPUIDLE_DESC_LEN); 331 strncpy(state->desc, descr, CPUIDLE_DESC_LEN);
319 cpuidle_set_statedata(state, cx); 332
333}
334
335/* Helper to register the driver_data */
336static inline struct omap3_idle_statedata *_fill_cstate_usage(
337 struct cpuidle_device *dev,
338 int idx)
339{
340 struct omap3_idle_statedata *cx = &omap3_idle_data[idx];
341 struct cpuidle_state_usage *state_usage = &dev->states_usage[idx];
342
343 cx->valid = cpuidle_params_table[idx].valid;
344 cpuidle_set_statedata(state_usage, cx);
320 345
321 return cx; 346 return cx;
322} 347}
@@ -330,6 +355,7 @@ static inline struct omap3_idle_statedata *_fill_cstate(
330int __init omap3_idle_init(void) 355int __init omap3_idle_init(void)
331{ 356{
332 struct cpuidle_device *dev; 357 struct cpuidle_device *dev;
358 struct cpuidle_driver *drv = &omap3_idle_driver;
333 struct omap3_idle_statedata *cx; 359 struct omap3_idle_statedata *cx;
334 360
335 mpu_pd = pwrdm_lookup("mpu_pwrdm"); 361 mpu_pd = pwrdm_lookup("mpu_pwrdm");
@@ -337,44 +363,52 @@ int __init omap3_idle_init(void)
337 per_pd = pwrdm_lookup("per_pwrdm"); 363 per_pd = pwrdm_lookup("per_pwrdm");
338 cam_pd = pwrdm_lookup("cam_pwrdm"); 364 cam_pd = pwrdm_lookup("cam_pwrdm");
339 365
340 cpuidle_register_driver(&omap3_idle_driver); 366
367 drv->safe_state_index = -1;
341 dev = &per_cpu(omap3_idle_dev, smp_processor_id()); 368 dev = &per_cpu(omap3_idle_dev, smp_processor_id());
342 369
343 /* C1 . MPU WFI + Core active */ 370 /* C1 . MPU WFI + Core active */
344 cx = _fill_cstate(dev, 0, "MPU ON + CORE ON"); 371 _fill_cstate(drv, 0, "MPU ON + CORE ON");
345 (&dev->states[0])->enter = omap3_enter_idle; 372 (&drv->states[0])->enter = omap3_enter_idle;
346 dev->safe_state = &dev->states[0]; 373 drv->safe_state_index = 0;
374 cx = _fill_cstate_usage(dev, 0);
347 cx->valid = 1; /* C1 is always valid */ 375 cx->valid = 1; /* C1 is always valid */
348 cx->mpu_state = PWRDM_POWER_ON; 376 cx->mpu_state = PWRDM_POWER_ON;
349 cx->core_state = PWRDM_POWER_ON; 377 cx->core_state = PWRDM_POWER_ON;
350 378
351 /* C2 . MPU WFI + Core inactive */ 379 /* C2 . MPU WFI + Core inactive */
352 cx = _fill_cstate(dev, 1, "MPU ON + CORE ON"); 380 _fill_cstate(drv, 1, "MPU ON + CORE ON");
381 cx = _fill_cstate_usage(dev, 1);
353 cx->mpu_state = PWRDM_POWER_ON; 382 cx->mpu_state = PWRDM_POWER_ON;
354 cx->core_state = PWRDM_POWER_ON; 383 cx->core_state = PWRDM_POWER_ON;
355 384
356 /* C3 . MPU CSWR + Core inactive */ 385 /* C3 . MPU CSWR + Core inactive */
357 cx = _fill_cstate(dev, 2, "MPU RET + CORE ON"); 386 _fill_cstate(drv, 2, "MPU RET + CORE ON");
387 cx = _fill_cstate_usage(dev, 2);
358 cx->mpu_state = PWRDM_POWER_RET; 388 cx->mpu_state = PWRDM_POWER_RET;
359 cx->core_state = PWRDM_POWER_ON; 389 cx->core_state = PWRDM_POWER_ON;
360 390
361 /* C4 . MPU OFF + Core inactive */ 391 /* C4 . MPU OFF + Core inactive */
362 cx = _fill_cstate(dev, 3, "MPU OFF + CORE ON"); 392 _fill_cstate(drv, 3, "MPU OFF + CORE ON");
393 cx = _fill_cstate_usage(dev, 3);
363 cx->mpu_state = PWRDM_POWER_OFF; 394 cx->mpu_state = PWRDM_POWER_OFF;
364 cx->core_state = PWRDM_POWER_ON; 395 cx->core_state = PWRDM_POWER_ON;
365 396
366 /* C5 . MPU RET + Core RET */ 397 /* C5 . MPU RET + Core RET */
367 cx = _fill_cstate(dev, 4, "MPU RET + CORE RET"); 398 _fill_cstate(drv, 4, "MPU RET + CORE RET");
399 cx = _fill_cstate_usage(dev, 4);
368 cx->mpu_state = PWRDM_POWER_RET; 400 cx->mpu_state = PWRDM_POWER_RET;
369 cx->core_state = PWRDM_POWER_RET; 401 cx->core_state = PWRDM_POWER_RET;
370 402
371 /* C6 . MPU OFF + Core RET */ 403 /* C6 . MPU OFF + Core RET */
372 cx = _fill_cstate(dev, 5, "MPU OFF + CORE RET"); 404 _fill_cstate(drv, 5, "MPU OFF + CORE RET");
405 cx = _fill_cstate_usage(dev, 5);
373 cx->mpu_state = PWRDM_POWER_OFF; 406 cx->mpu_state = PWRDM_POWER_OFF;
374 cx->core_state = PWRDM_POWER_RET; 407 cx->core_state = PWRDM_POWER_RET;
375 408
376 /* C7 . MPU OFF + Core OFF */ 409 /* C7 . MPU OFF + Core OFF */
377 cx = _fill_cstate(dev, 6, "MPU OFF + CORE OFF"); 410 _fill_cstate(drv, 6, "MPU OFF + CORE OFF");
411 cx = _fill_cstate_usage(dev, 6);
378 /* 412 /*
379 * Erratum i583: implementation for ES rev < Es1.2 on 3630. We cannot 413 * Erratum i583: implementation for ES rev < Es1.2 on 3630. We cannot
380 * enable OFF mode in a stable form for previous revisions. 414 * enable OFF mode in a stable form for previous revisions.
@@ -388,6 +422,9 @@ int __init omap3_idle_init(void)
388 cx->mpu_state = PWRDM_POWER_OFF; 422 cx->mpu_state = PWRDM_POWER_OFF;
389 cx->core_state = PWRDM_POWER_OFF; 423 cx->core_state = PWRDM_POWER_OFF;
390 424
425 drv->state_count = OMAP3_NUM_STATES;
426 cpuidle_register_driver(&omap3_idle_driver);
427
391 dev->state_count = OMAP3_NUM_STATES; 428 dev->state_count = OMAP3_NUM_STATES;
392 if (cpuidle_register_device(dev)) { 429 if (cpuidle_register_device(dev)) {
393 printk(KERN_ERR "%s: CPUidle register device failed\n", 430 printk(KERN_ERR "%s: CPUidle register device failed\n",
diff --git a/arch/sh/kernel/cpu/shmobile/cpuidle.c b/arch/sh/kernel/cpu/shmobile/cpuidle.c
index 7d98f909a8ac..1cc257c9b1e3 100644
--- a/arch/sh/kernel/cpu/shmobile/cpuidle.c
+++ b/arch/sh/kernel/cpu/shmobile/cpuidle.c
@@ -26,11 +26,12 @@ static unsigned long cpuidle_mode[] = {
26}; 26};
27 27
28static int cpuidle_sleep_enter(struct cpuidle_device *dev, 28static int cpuidle_sleep_enter(struct cpuidle_device *dev,
29 struct cpuidle_state *state) 29 struct cpuidle_driver *drv,
30 int index)
30{ 31{
31 unsigned long allowed_mode = arch_hwblk_sleep_mode(); 32 unsigned long allowed_mode = arch_hwblk_sleep_mode();
32 ktime_t before, after; 33 ktime_t before, after;
33 int requested_state = state - &dev->states[0]; 34 int requested_state = index;
34 int allowed_state; 35 int allowed_state;
35 int k; 36 int k;
36 37
@@ -47,11 +48,13 @@ static int cpuidle_sleep_enter(struct cpuidle_device *dev,
47 */ 48 */
48 k = min_t(int, allowed_state, requested_state); 49 k = min_t(int, allowed_state, requested_state);
49 50
50 dev->last_state = &dev->states[k];
51 before = ktime_get(); 51 before = ktime_get();
52 sh_mobile_call_standby(cpuidle_mode[k]); 52 sh_mobile_call_standby(cpuidle_mode[k]);
53 after = ktime_get(); 53 after = ktime_get();
54 return ktime_to_ns(ktime_sub(after, before)) >> 10; 54
55 dev->last_residency = (int)ktime_to_ns(ktime_sub(after, before)) >> 10;
56
57 return k;
55} 58}
56 59
57static struct cpuidle_device cpuidle_dev; 60static struct cpuidle_device cpuidle_dev;
@@ -63,19 +66,19 @@ static struct cpuidle_driver cpuidle_driver = {
63void sh_mobile_setup_cpuidle(void) 66void sh_mobile_setup_cpuidle(void)
64{ 67{
65 struct cpuidle_device *dev = &cpuidle_dev; 68 struct cpuidle_device *dev = &cpuidle_dev;
69 struct cpuidle_driver *drv = &cpuidle_driver;
66 struct cpuidle_state *state; 70 struct cpuidle_state *state;
67 int i; 71 int i;
68 72
69 cpuidle_register_driver(&cpuidle_driver);
70 73
71 for (i = 0; i < CPUIDLE_STATE_MAX; i++) { 74 for (i = 0; i < CPUIDLE_STATE_MAX; i++) {
72 dev->states[i].name[0] = '\0'; 75 drv->states[i].name[0] = '\0';
73 dev->states[i].desc[0] = '\0'; 76 drv->states[i].desc[0] = '\0';
74 } 77 }
75 78
76 i = CPUIDLE_DRIVER_STATE_START; 79 i = CPUIDLE_DRIVER_STATE_START;
77 80
78 state = &dev->states[i++]; 81 state = &drv->states[i++];
79 snprintf(state->name, CPUIDLE_NAME_LEN, "C1"); 82 snprintf(state->name, CPUIDLE_NAME_LEN, "C1");
80 strncpy(state->desc, "SuperH Sleep Mode", CPUIDLE_DESC_LEN); 83 strncpy(state->desc, "SuperH Sleep Mode", CPUIDLE_DESC_LEN);
81 state->exit_latency = 1; 84 state->exit_latency = 1;
@@ -85,10 +88,10 @@ void sh_mobile_setup_cpuidle(void)
85 state->flags |= CPUIDLE_FLAG_TIME_VALID; 88 state->flags |= CPUIDLE_FLAG_TIME_VALID;
86 state->enter = cpuidle_sleep_enter; 89 state->enter = cpuidle_sleep_enter;
87 90
88 dev->safe_state = state; 91 drv->safe_state_index = i-1;
89 92
90 if (sh_mobile_sleep_supported & SUSP_SH_SF) { 93 if (sh_mobile_sleep_supported & SUSP_SH_SF) {
91 state = &dev->states[i++]; 94 state = &drv->states[i++];
92 snprintf(state->name, CPUIDLE_NAME_LEN, "C2"); 95 snprintf(state->name, CPUIDLE_NAME_LEN, "C2");
93 strncpy(state->desc, "SuperH Sleep Mode [SF]", 96 strncpy(state->desc, "SuperH Sleep Mode [SF]",
94 CPUIDLE_DESC_LEN); 97 CPUIDLE_DESC_LEN);
@@ -101,7 +104,7 @@ void sh_mobile_setup_cpuidle(void)
101 } 104 }
102 105
103 if (sh_mobile_sleep_supported & SUSP_SH_STANDBY) { 106 if (sh_mobile_sleep_supported & SUSP_SH_STANDBY) {
104 state = &dev->states[i++]; 107 state = &drv->states[i++];
105 snprintf(state->name, CPUIDLE_NAME_LEN, "C3"); 108 snprintf(state->name, CPUIDLE_NAME_LEN, "C3");
106 strncpy(state->desc, "SuperH Mobile Standby Mode [SF]", 109 strncpy(state->desc, "SuperH Mobile Standby Mode [SF]",
107 CPUIDLE_DESC_LEN); 110 CPUIDLE_DESC_LEN);
@@ -113,7 +116,10 @@ void sh_mobile_setup_cpuidle(void)
113 state->enter = cpuidle_sleep_enter; 116 state->enter = cpuidle_sleep_enter;
114 } 117 }
115 118
119 drv->state_count = i;
116 dev->state_count = i; 120 dev->state_count = i;
117 121
122 cpuidle_register_driver(&cpuidle_driver);
123
118 cpuidle_register_device(dev); 124 cpuidle_register_device(dev);
119} 125}
diff --git a/arch/x86/platform/mrst/pmu.c b/arch/x86/platform/mrst/pmu.c
index 9281da7d91bd..c0ac06da57ac 100644
--- a/arch/x86/platform/mrst/pmu.c
+++ b/arch/x86/platform/mrst/pmu.c
@@ -70,7 +70,7 @@ static struct mrst_device mrst_devs[] = {
70/* 24 */ { 0x4110, 0 }, /* Lincroft */ 70/* 24 */ { 0x4110, 0 }, /* Lincroft */
71}; 71};
72 72
73/* n.b. We ignore PCI-id 0x815 in LSS9 b/c MeeGo has no driver for it */ 73/* n.b. We ignore PCI-id 0x815 in LSS9 b/c Linux has no driver for it */
74static u16 mrst_lss9_pci_ids[] = {0x080a, 0x0814, 0}; 74static u16 mrst_lss9_pci_ids[] = {0x080a, 0x0814, 0};
75static u16 mrst_lss10_pci_ids[] = {0x0800, 0x0801, 0x0802, 0x0803, 75static u16 mrst_lss10_pci_ids[] = {0x0800, 0x0801, 0x0802, 0x0803,
76 0x0804, 0x0805, 0x080f, 0}; 76 0x0804, 0x0805, 0x080f, 0};
diff --git a/drivers/acpi/acpica/hwregs.c b/drivers/acpi/acpica/hwregs.c
index 55accb7018bb..cc70f3fdcdd1 100644
--- a/drivers/acpi/acpica/hwregs.c
+++ b/drivers/acpi/acpica/hwregs.c
@@ -269,16 +269,17 @@ acpi_status acpi_hw_clear_acpi_status(void)
269 269
270 status = acpi_hw_register_write(ACPI_REGISTER_PM1_STATUS, 270 status = acpi_hw_register_write(ACPI_REGISTER_PM1_STATUS,
271 ACPI_BITMASK_ALL_FIXED_STATUS); 271 ACPI_BITMASK_ALL_FIXED_STATUS);
272 if (ACPI_FAILURE(status)) { 272
273 goto unlock_and_exit; 273 acpi_os_release_lock(acpi_gbl_hardware_lock, lock_flags);
274 } 274
275 if (ACPI_FAILURE(status))
276 goto exit;
275 277
276 /* Clear the GPE Bits in all GPE registers in all GPE blocks */ 278 /* Clear the GPE Bits in all GPE registers in all GPE blocks */
277 279
278 status = acpi_ev_walk_gpe_list(acpi_hw_clear_gpe_block, NULL); 280 status = acpi_ev_walk_gpe_list(acpi_hw_clear_gpe_block, NULL);
279 281
280 unlock_and_exit: 282exit:
281 acpi_os_release_lock(acpi_gbl_hardware_lock, lock_flags);
282 return_ACPI_STATUS(status); 283 return_ACPI_STATUS(status);
283} 284}
284 285
diff --git a/drivers/acpi/atomicio.c b/drivers/acpi/atomicio.c
index 04ae1c88c03c..cfc0cc10af39 100644
--- a/drivers/acpi/atomicio.c
+++ b/drivers/acpi/atomicio.c
@@ -76,7 +76,7 @@ static void __iomem *__acpi_ioremap_fast(phys_addr_t paddr,
76{ 76{
77 struct acpi_iomap *map; 77 struct acpi_iomap *map;
78 78
79 map = __acpi_find_iomap(paddr, size); 79 map = __acpi_find_iomap(paddr, size/8);
80 if (map) 80 if (map)
81 return map->vaddr + (paddr - map->paddr); 81 return map->vaddr + (paddr - map->paddr);
82 else 82 else
diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index 437ddbf0c49a..9ecec98bc76e 100644
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -911,10 +911,7 @@ void __init acpi_early_init(void)
911 } 911 }
912#endif 912#endif
913 913
914 status = 914 status = acpi_enable_subsystem(~ACPI_NO_ACPI_ENABLE);
915 acpi_enable_subsystem(~
916 (ACPI_NO_HARDWARE_INIT |
917 ACPI_NO_ACPI_ENABLE));
918 if (ACPI_FAILURE(status)) { 915 if (ACPI_FAILURE(status)) {
919 printk(KERN_ERR PREFIX "Unable to enable ACPI\n"); 916 printk(KERN_ERR PREFIX "Unable to enable ACPI\n");
920 goto error0; 917 goto error0;
@@ -935,8 +932,7 @@ static int __init acpi_bus_init(void)
935 932
936 acpi_os_initialize1(); 933 acpi_os_initialize1();
937 934
938 status = 935 status = acpi_enable_subsystem(ACPI_NO_ACPI_ENABLE);
939 acpi_enable_subsystem(ACPI_NO_HARDWARE_INIT | ACPI_NO_ACPI_ENABLE);
940 if (ACPI_FAILURE(status)) { 936 if (ACPI_FAILURE(status)) {
941 printk(KERN_ERR PREFIX 937 printk(KERN_ERR PREFIX
942 "Unable to start the ACPI Interpreter\n"); 938 "Unable to start the ACPI Interpreter\n");
diff --git a/drivers/acpi/processor_driver.c b/drivers/acpi/processor_driver.c
index a4e0f1ba6040..9d7bc9f6b6cc 100644
--- a/drivers/acpi/processor_driver.c
+++ b/drivers/acpi/processor_driver.c
@@ -426,7 +426,7 @@ static int acpi_cpu_soft_notify(struct notifier_block *nfb,
426 426
427 if (action == CPU_ONLINE && pr) { 427 if (action == CPU_ONLINE && pr) {
428 acpi_processor_ppc_has_changed(pr, 0); 428 acpi_processor_ppc_has_changed(pr, 0);
429 acpi_processor_cst_has_changed(pr); 429 acpi_processor_hotplug(pr);
430 acpi_processor_reevaluate_tstate(pr, action); 430 acpi_processor_reevaluate_tstate(pr, action);
431 acpi_processor_tstate_has_changed(pr); 431 acpi_processor_tstate_has_changed(pr);
432 } 432 }
@@ -503,8 +503,7 @@ static int __cpuinit acpi_processor_add(struct acpi_device *device)
503 acpi_processor_get_throttling_info(pr); 503 acpi_processor_get_throttling_info(pr);
504 acpi_processor_get_limit_info(pr); 504 acpi_processor_get_limit_info(pr);
505 505
506 506 if (!cpuidle_get_driver() || cpuidle_get_driver() == &acpi_idle_driver)
507 if (cpuidle_get_driver() == &acpi_idle_driver)
508 acpi_processor_power_init(pr, device); 507 acpi_processor_power_init(pr, device);
509 508
510 pr->cdev = thermal_cooling_device_register("Processor", device, 509 pr->cdev = thermal_cooling_device_register("Processor", device,
@@ -800,17 +799,9 @@ static int __init acpi_processor_init(void)
800 799
801 memset(&errata, 0, sizeof(errata)); 800 memset(&errata, 0, sizeof(errata));
802 801
803 if (!cpuidle_register_driver(&acpi_idle_driver)) {
804 printk(KERN_DEBUG "ACPI: %s registered with cpuidle\n",
805 acpi_idle_driver.name);
806 } else {
807 printk(KERN_DEBUG "ACPI: acpi_idle yielding to %s\n",
808 cpuidle_get_driver()->name);
809 }
810
811 result = acpi_bus_register_driver(&acpi_processor_driver); 802 result = acpi_bus_register_driver(&acpi_processor_driver);
812 if (result < 0) 803 if (result < 0)
813 goto out_cpuidle; 804 return result;
814 805
815 acpi_processor_install_hotplug_notify(); 806 acpi_processor_install_hotplug_notify();
816 807
@@ -821,11 +812,6 @@ static int __init acpi_processor_init(void)
821 acpi_processor_throttling_init(); 812 acpi_processor_throttling_init();
822 813
823 return 0; 814 return 0;
824
825out_cpuidle:
826 cpuidle_unregister_driver(&acpi_idle_driver);
827
828 return result;
829} 815}
830 816
831static void __exit acpi_processor_exit(void) 817static void __exit acpi_processor_exit(void)
diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index 9b88f9828d8c..73b2909dddfe 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -741,22 +741,25 @@ static inline void acpi_idle_do_entry(struct acpi_processor_cx *cx)
741/** 741/**
742 * acpi_idle_enter_c1 - enters an ACPI C1 state-type 742 * acpi_idle_enter_c1 - enters an ACPI C1 state-type
743 * @dev: the target CPU 743 * @dev: the target CPU
744 * @state: the state data 744 * @drv: cpuidle driver containing cpuidle state info
745 * @index: index of target state
745 * 746 *
746 * This is equivalent to the HALT instruction. 747 * This is equivalent to the HALT instruction.
747 */ 748 */
748static int acpi_idle_enter_c1(struct cpuidle_device *dev, 749static int acpi_idle_enter_c1(struct cpuidle_device *dev,
749 struct cpuidle_state *state) 750 struct cpuidle_driver *drv, int index)
750{ 751{
751 ktime_t kt1, kt2; 752 ktime_t kt1, kt2;
752 s64 idle_time; 753 s64 idle_time;
753 struct acpi_processor *pr; 754 struct acpi_processor *pr;
754 struct acpi_processor_cx *cx = cpuidle_get_statedata(state); 755 struct cpuidle_state_usage *state_usage = &dev->states_usage[index];
756 struct acpi_processor_cx *cx = cpuidle_get_statedata(state_usage);
755 757
756 pr = __this_cpu_read(processors); 758 pr = __this_cpu_read(processors);
759 dev->last_residency = 0;
757 760
758 if (unlikely(!pr)) 761 if (unlikely(!pr))
759 return 0; 762 return -EINVAL;
760 763
761 local_irq_disable(); 764 local_irq_disable();
762 765
@@ -764,7 +767,7 @@ static int acpi_idle_enter_c1(struct cpuidle_device *dev,
764 if (acpi_idle_suspend) { 767 if (acpi_idle_suspend) {
765 local_irq_enable(); 768 local_irq_enable();
766 cpu_relax(); 769 cpu_relax();
767 return 0; 770 return -EINVAL;
768 } 771 }
769 772
770 lapic_timer_state_broadcast(pr, cx, 1); 773 lapic_timer_state_broadcast(pr, cx, 1);
@@ -773,37 +776,47 @@ static int acpi_idle_enter_c1(struct cpuidle_device *dev,
773 kt2 = ktime_get_real(); 776 kt2 = ktime_get_real();
774 idle_time = ktime_to_us(ktime_sub(kt2, kt1)); 777 idle_time = ktime_to_us(ktime_sub(kt2, kt1));
775 778
779 /* Update device last_residency*/
780 dev->last_residency = (int)idle_time;
781
776 local_irq_enable(); 782 local_irq_enable();
777 cx->usage++; 783 cx->usage++;
778 lapic_timer_state_broadcast(pr, cx, 0); 784 lapic_timer_state_broadcast(pr, cx, 0);
779 785
780 return idle_time; 786 return index;
781} 787}
782 788
783/** 789/**
784 * acpi_idle_enter_simple - enters an ACPI state without BM handling 790 * acpi_idle_enter_simple - enters an ACPI state without BM handling
785 * @dev: the target CPU 791 * @dev: the target CPU
786 * @state: the state data 792 * @drv: cpuidle driver with cpuidle state information
793 * @index: the index of suggested state
787 */ 794 */
788static int acpi_idle_enter_simple(struct cpuidle_device *dev, 795static int acpi_idle_enter_simple(struct cpuidle_device *dev,
789 struct cpuidle_state *state) 796 struct cpuidle_driver *drv, int index)
790{ 797{
791 struct acpi_processor *pr; 798 struct acpi_processor *pr;
792 struct acpi_processor_cx *cx = cpuidle_get_statedata(state); 799 struct cpuidle_state_usage *state_usage = &dev->states_usage[index];
800 struct acpi_processor_cx *cx = cpuidle_get_statedata(state_usage);
793 ktime_t kt1, kt2; 801 ktime_t kt1, kt2;
794 s64 idle_time_ns; 802 s64 idle_time_ns;
795 s64 idle_time; 803 s64 idle_time;
796 804
797 pr = __this_cpu_read(processors); 805 pr = __this_cpu_read(processors);
806 dev->last_residency = 0;
798 807
799 if (unlikely(!pr)) 808 if (unlikely(!pr))
800 return 0; 809 return -EINVAL;
801
802 if (acpi_idle_suspend)
803 return(acpi_idle_enter_c1(dev, state));
804 810
805 local_irq_disable(); 811 local_irq_disable();
806 812
813 if (acpi_idle_suspend) {
814 local_irq_enable();
815 cpu_relax();
816 return -EINVAL;
817 }
818
819
807 if (cx->entry_method != ACPI_CSTATE_FFH) { 820 if (cx->entry_method != ACPI_CSTATE_FFH) {
808 current_thread_info()->status &= ~TS_POLLING; 821 current_thread_info()->status &= ~TS_POLLING;
809 /* 822 /*
@@ -815,7 +828,7 @@ static int acpi_idle_enter_simple(struct cpuidle_device *dev,
815 if (unlikely(need_resched())) { 828 if (unlikely(need_resched())) {
816 current_thread_info()->status |= TS_POLLING; 829 current_thread_info()->status |= TS_POLLING;
817 local_irq_enable(); 830 local_irq_enable();
818 return 0; 831 return -EINVAL;
819 } 832 }
820 } 833 }
821 834
@@ -837,6 +850,9 @@ static int acpi_idle_enter_simple(struct cpuidle_device *dev,
837 idle_time = idle_time_ns; 850 idle_time = idle_time_ns;
838 do_div(idle_time, NSEC_PER_USEC); 851 do_div(idle_time, NSEC_PER_USEC);
839 852
853 /* Update device last_residency*/
854 dev->last_residency = (int)idle_time;
855
840 /* Tell the scheduler how much we idled: */ 856 /* Tell the scheduler how much we idled: */
841 sched_clock_idle_wakeup_event(idle_time_ns); 857 sched_clock_idle_wakeup_event(idle_time_ns);
842 858
@@ -848,7 +864,7 @@ static int acpi_idle_enter_simple(struct cpuidle_device *dev,
848 864
849 lapic_timer_state_broadcast(pr, cx, 0); 865 lapic_timer_state_broadcast(pr, cx, 0);
850 cx->time += idle_time; 866 cx->time += idle_time;
851 return idle_time; 867 return index;
852} 868}
853 869
854static int c3_cpu_count; 870static int c3_cpu_count;
@@ -857,37 +873,43 @@ static DEFINE_RAW_SPINLOCK(c3_lock);
857/** 873/**
858 * acpi_idle_enter_bm - enters C3 with proper BM handling 874 * acpi_idle_enter_bm - enters C3 with proper BM handling
859 * @dev: the target CPU 875 * @dev: the target CPU
860 * @state: the state data 876 * @drv: cpuidle driver containing state data
877 * @index: the index of suggested state
861 * 878 *
862 * If BM is detected, the deepest non-C3 idle state is entered instead. 879 * If BM is detected, the deepest non-C3 idle state is entered instead.
863 */ 880 */
864static int acpi_idle_enter_bm(struct cpuidle_device *dev, 881static int acpi_idle_enter_bm(struct cpuidle_device *dev,
865 struct cpuidle_state *state) 882 struct cpuidle_driver *drv, int index)
866{ 883{
867 struct acpi_processor *pr; 884 struct acpi_processor *pr;
868 struct acpi_processor_cx *cx = cpuidle_get_statedata(state); 885 struct cpuidle_state_usage *state_usage = &dev->states_usage[index];
886 struct acpi_processor_cx *cx = cpuidle_get_statedata(state_usage);
869 ktime_t kt1, kt2; 887 ktime_t kt1, kt2;
870 s64 idle_time_ns; 888 s64 idle_time_ns;
871 s64 idle_time; 889 s64 idle_time;
872 890
873 891
874 pr = __this_cpu_read(processors); 892 pr = __this_cpu_read(processors);
893 dev->last_residency = 0;
875 894
876 if (unlikely(!pr)) 895 if (unlikely(!pr))
877 return 0; 896 return -EINVAL;
897
878 898
879 if (acpi_idle_suspend) 899 if (acpi_idle_suspend) {
880 return(acpi_idle_enter_c1(dev, state)); 900 cpu_relax();
901 return -EINVAL;
902 }
881 903
882 if (!cx->bm_sts_skip && acpi_idle_bm_check()) { 904 if (!cx->bm_sts_skip && acpi_idle_bm_check()) {
883 if (dev->safe_state) { 905 if (drv->safe_state_index >= 0) {
884 dev->last_state = dev->safe_state; 906 return drv->states[drv->safe_state_index].enter(dev,
885 return dev->safe_state->enter(dev, dev->safe_state); 907 drv, drv->safe_state_index);
886 } else { 908 } else {
887 local_irq_disable(); 909 local_irq_disable();
888 acpi_safe_halt(); 910 acpi_safe_halt();
889 local_irq_enable(); 911 local_irq_enable();
890 return 0; 912 return -EINVAL;
891 } 913 }
892 } 914 }
893 915
@@ -904,7 +926,7 @@ static int acpi_idle_enter_bm(struct cpuidle_device *dev,
904 if (unlikely(need_resched())) { 926 if (unlikely(need_resched())) {
905 current_thread_info()->status |= TS_POLLING; 927 current_thread_info()->status |= TS_POLLING;
906 local_irq_enable(); 928 local_irq_enable();
907 return 0; 929 return -EINVAL;
908 } 930 }
909 } 931 }
910 932
@@ -954,6 +976,9 @@ static int acpi_idle_enter_bm(struct cpuidle_device *dev,
954 idle_time = idle_time_ns; 976 idle_time = idle_time_ns;
955 do_div(idle_time, NSEC_PER_USEC); 977 do_div(idle_time, NSEC_PER_USEC);
956 978
979 /* Update device last_residency*/
980 dev->last_residency = (int)idle_time;
981
957 /* Tell the scheduler how much we idled: */ 982 /* Tell the scheduler how much we idled: */
958 sched_clock_idle_wakeup_event(idle_time_ns); 983 sched_clock_idle_wakeup_event(idle_time_ns);
959 984
@@ -965,7 +990,7 @@ static int acpi_idle_enter_bm(struct cpuidle_device *dev,
965 990
966 lapic_timer_state_broadcast(pr, cx, 0); 991 lapic_timer_state_broadcast(pr, cx, 0);
967 cx->time += idle_time; 992 cx->time += idle_time;
968 return idle_time; 993 return index;
969} 994}
970 995
971struct cpuidle_driver acpi_idle_driver = { 996struct cpuidle_driver acpi_idle_driver = {
@@ -974,14 +999,16 @@ struct cpuidle_driver acpi_idle_driver = {
974}; 999};
975 1000
976/** 1001/**
977 * acpi_processor_setup_cpuidle - prepares and configures CPUIDLE 1002 * acpi_processor_setup_cpuidle_cx - prepares and configures CPUIDLE
1003 * device i.e. per-cpu data
1004 *
978 * @pr: the ACPI processor 1005 * @pr: the ACPI processor
979 */ 1006 */
980static int acpi_processor_setup_cpuidle(struct acpi_processor *pr) 1007static int acpi_processor_setup_cpuidle_cx(struct acpi_processor *pr)
981{ 1008{
982 int i, count = CPUIDLE_DRIVER_STATE_START; 1009 int i, count = CPUIDLE_DRIVER_STATE_START;
983 struct acpi_processor_cx *cx; 1010 struct acpi_processor_cx *cx;
984 struct cpuidle_state *state; 1011 struct cpuidle_state_usage *state_usage;
985 struct cpuidle_device *dev = &pr->power.dev; 1012 struct cpuidle_device *dev = &pr->power.dev;
986 1013
987 if (!pr->flags.power_setup_done) 1014 if (!pr->flags.power_setup_done)
@@ -992,9 +1019,62 @@ static int acpi_processor_setup_cpuidle(struct acpi_processor *pr)
992 } 1019 }
993 1020
994 dev->cpu = pr->id; 1021 dev->cpu = pr->id;
1022
1023 if (max_cstate == 0)
1024 max_cstate = 1;
1025
1026 for (i = 1; i < ACPI_PROCESSOR_MAX_POWER && i <= max_cstate; i++) {
1027 cx = &pr->power.states[i];
1028 state_usage = &dev->states_usage[count];
1029
1030 if (!cx->valid)
1031 continue;
1032
1033#ifdef CONFIG_HOTPLUG_CPU
1034 if ((cx->type != ACPI_STATE_C1) && (num_online_cpus() > 1) &&
1035 !pr->flags.has_cst &&
1036 !(acpi_gbl_FADT.flags & ACPI_FADT_C2_MP_SUPPORTED))
1037 continue;
1038#endif
1039
1040 cpuidle_set_statedata(state_usage, cx);
1041
1042 count++;
1043 if (count == CPUIDLE_STATE_MAX)
1044 break;
1045 }
1046
1047 dev->state_count = count;
1048
1049 if (!count)
1050 return -EINVAL;
1051
1052 return 0;
1053}
1054
1055/**
1056 * acpi_processor_setup_cpuidle states- prepares and configures cpuidle
1057 * global state data i.e. idle routines
1058 *
1059 * @pr: the ACPI processor
1060 */
1061static int acpi_processor_setup_cpuidle_states(struct acpi_processor *pr)
1062{
1063 int i, count = CPUIDLE_DRIVER_STATE_START;
1064 struct acpi_processor_cx *cx;
1065 struct cpuidle_state *state;
1066 struct cpuidle_driver *drv = &acpi_idle_driver;
1067
1068 if (!pr->flags.power_setup_done)
1069 return -EINVAL;
1070
1071 if (pr->flags.power == 0)
1072 return -EINVAL;
1073
1074 drv->safe_state_index = -1;
995 for (i = 0; i < CPUIDLE_STATE_MAX; i++) { 1075 for (i = 0; i < CPUIDLE_STATE_MAX; i++) {
996 dev->states[i].name[0] = '\0'; 1076 drv->states[i].name[0] = '\0';
997 dev->states[i].desc[0] = '\0'; 1077 drv->states[i].desc[0] = '\0';
998 } 1078 }
999 1079
1000 if (max_cstate == 0) 1080 if (max_cstate == 0)
@@ -1002,7 +1082,6 @@ static int acpi_processor_setup_cpuidle(struct acpi_processor *pr)
1002 1082
1003 for (i = 1; i < ACPI_PROCESSOR_MAX_POWER && i <= max_cstate; i++) { 1083 for (i = 1; i < ACPI_PROCESSOR_MAX_POWER && i <= max_cstate; i++) {
1004 cx = &pr->power.states[i]; 1084 cx = &pr->power.states[i];
1005 state = &dev->states[count];
1006 1085
1007 if (!cx->valid) 1086 if (!cx->valid)
1008 continue; 1087 continue;
@@ -1013,8 +1092,8 @@ static int acpi_processor_setup_cpuidle(struct acpi_processor *pr)
1013 !(acpi_gbl_FADT.flags & ACPI_FADT_C2_MP_SUPPORTED)) 1092 !(acpi_gbl_FADT.flags & ACPI_FADT_C2_MP_SUPPORTED))
1014 continue; 1093 continue;
1015#endif 1094#endif
1016 cpuidle_set_statedata(state, cx);
1017 1095
1096 state = &drv->states[count];
1018 snprintf(state->name, CPUIDLE_NAME_LEN, "C%d", i); 1097 snprintf(state->name, CPUIDLE_NAME_LEN, "C%d", i);
1019 strncpy(state->desc, cx->desc, CPUIDLE_DESC_LEN); 1098 strncpy(state->desc, cx->desc, CPUIDLE_DESC_LEN);
1020 state->exit_latency = cx->latency; 1099 state->exit_latency = cx->latency;
@@ -1027,13 +1106,13 @@ static int acpi_processor_setup_cpuidle(struct acpi_processor *pr)
1027 state->flags |= CPUIDLE_FLAG_TIME_VALID; 1106 state->flags |= CPUIDLE_FLAG_TIME_VALID;
1028 1107
1029 state->enter = acpi_idle_enter_c1; 1108 state->enter = acpi_idle_enter_c1;
1030 dev->safe_state = state; 1109 drv->safe_state_index = count;
1031 break; 1110 break;
1032 1111
1033 case ACPI_STATE_C2: 1112 case ACPI_STATE_C2:
1034 state->flags |= CPUIDLE_FLAG_TIME_VALID; 1113 state->flags |= CPUIDLE_FLAG_TIME_VALID;
1035 state->enter = acpi_idle_enter_simple; 1114 state->enter = acpi_idle_enter_simple;
1036 dev->safe_state = state; 1115 drv->safe_state_index = count;
1037 break; 1116 break;
1038 1117
1039 case ACPI_STATE_C3: 1118 case ACPI_STATE_C3:
@@ -1049,7 +1128,7 @@ static int acpi_processor_setup_cpuidle(struct acpi_processor *pr)
1049 break; 1128 break;
1050 } 1129 }
1051 1130
1052 dev->state_count = count; 1131 drv->state_count = count;
1053 1132
1054 if (!count) 1133 if (!count)
1055 return -EINVAL; 1134 return -EINVAL;
@@ -1057,7 +1136,7 @@ static int acpi_processor_setup_cpuidle(struct acpi_processor *pr)
1057 return 0; 1136 return 0;
1058} 1137}
1059 1138
1060int acpi_processor_cst_has_changed(struct acpi_processor *pr) 1139int acpi_processor_hotplug(struct acpi_processor *pr)
1061{ 1140{
1062 int ret = 0; 1141 int ret = 0;
1063 1142
@@ -1078,7 +1157,7 @@ int acpi_processor_cst_has_changed(struct acpi_processor *pr)
1078 cpuidle_disable_device(&pr->power.dev); 1157 cpuidle_disable_device(&pr->power.dev);
1079 acpi_processor_get_power_info(pr); 1158 acpi_processor_get_power_info(pr);
1080 if (pr->flags.power) { 1159 if (pr->flags.power) {
1081 acpi_processor_setup_cpuidle(pr); 1160 acpi_processor_setup_cpuidle_cx(pr);
1082 ret = cpuidle_enable_device(&pr->power.dev); 1161 ret = cpuidle_enable_device(&pr->power.dev);
1083 } 1162 }
1084 cpuidle_resume_and_unlock(); 1163 cpuidle_resume_and_unlock();
@@ -1086,10 +1165,72 @@ int acpi_processor_cst_has_changed(struct acpi_processor *pr)
1086 return ret; 1165 return ret;
1087} 1166}
1088 1167
1168int acpi_processor_cst_has_changed(struct acpi_processor *pr)
1169{
1170 int cpu;
1171 struct acpi_processor *_pr;
1172
1173 if (disabled_by_idle_boot_param())
1174 return 0;
1175
1176 if (!pr)
1177 return -EINVAL;
1178
1179 if (nocst)
1180 return -ENODEV;
1181
1182 if (!pr->flags.power_setup_done)
1183 return -ENODEV;
1184
1185 /*
1186 * FIXME: Design the ACPI notification to make it once per
1187 * system instead of once per-cpu. This condition is a hack
1188 * to make the code that updates C-States be called once.
1189 */
1190
1191 if (smp_processor_id() == 0 &&
1192 cpuidle_get_driver() == &acpi_idle_driver) {
1193
1194 cpuidle_pause_and_lock();
1195 /* Protect against cpu-hotplug */
1196 get_online_cpus();
1197
1198 /* Disable all cpuidle devices */
1199 for_each_online_cpu(cpu) {
1200 _pr = per_cpu(processors, cpu);
1201 if (!_pr || !_pr->flags.power_setup_done)
1202 continue;
1203 cpuidle_disable_device(&_pr->power.dev);
1204 }
1205
1206 /* Populate Updated C-state information */
1207 acpi_processor_setup_cpuidle_states(pr);
1208
1209 /* Enable all cpuidle devices */
1210 for_each_online_cpu(cpu) {
1211 _pr = per_cpu(processors, cpu);
1212 if (!_pr || !_pr->flags.power_setup_done)
1213 continue;
1214 acpi_processor_get_power_info(_pr);
1215 if (_pr->flags.power) {
1216 acpi_processor_setup_cpuidle_cx(_pr);
1217 cpuidle_enable_device(&_pr->power.dev);
1218 }
1219 }
1220 put_online_cpus();
1221 cpuidle_resume_and_unlock();
1222 }
1223
1224 return 0;
1225}
1226
1227static int acpi_processor_registered;
1228
1089int __cpuinit acpi_processor_power_init(struct acpi_processor *pr, 1229int __cpuinit acpi_processor_power_init(struct acpi_processor *pr,
1090 struct acpi_device *device) 1230 struct acpi_device *device)
1091{ 1231{
1092 acpi_status status = 0; 1232 acpi_status status = 0;
1233 int retval;
1093 static int first_run; 1234 static int first_run;
1094 1235
1095 if (disabled_by_idle_boot_param()) 1236 if (disabled_by_idle_boot_param())
@@ -1126,9 +1267,26 @@ int __cpuinit acpi_processor_power_init(struct acpi_processor *pr,
1126 * platforms that only support C1. 1267 * platforms that only support C1.
1127 */ 1268 */
1128 if (pr->flags.power) { 1269 if (pr->flags.power) {
1129 acpi_processor_setup_cpuidle(pr); 1270 /* Register acpi_idle_driver if not already registered */
1130 if (cpuidle_register_device(&pr->power.dev)) 1271 if (!acpi_processor_registered) {
1131 return -EIO; 1272 acpi_processor_setup_cpuidle_states(pr);
1273 retval = cpuidle_register_driver(&acpi_idle_driver);
1274 if (retval)
1275 return retval;
1276 printk(KERN_DEBUG "ACPI: %s registered with cpuidle\n",
1277 acpi_idle_driver.name);
1278 }
1279 /* Register per-cpu cpuidle_device. Cpuidle driver
1280 * must already be registered before registering device
1281 */
1282 acpi_processor_setup_cpuidle_cx(pr);
1283 retval = cpuidle_register_device(&pr->power.dev);
1284 if (retval) {
1285 if (acpi_processor_registered == 0)
1286 cpuidle_unregister_driver(&acpi_idle_driver);
1287 return retval;
1288 }
1289 acpi_processor_registered++;
1132 } 1290 }
1133 return 0; 1291 return 0;
1134} 1292}
@@ -1139,8 +1297,13 @@ int acpi_processor_power_exit(struct acpi_processor *pr,
1139 if (disabled_by_idle_boot_param()) 1297 if (disabled_by_idle_boot_param())
1140 return 0; 1298 return 0;
1141 1299
1142 cpuidle_unregister_device(&pr->power.dev); 1300 if (pr->flags.power) {
1143 pr->flags.power_setup_done = 0; 1301 cpuidle_unregister_device(&pr->power.dev);
1302 acpi_processor_registered--;
1303 if (acpi_processor_registered == 0)
1304 cpuidle_unregister_driver(&acpi_idle_driver);
1305 }
1144 1306
1307 pr->flags.power_setup_done = 0;
1145 return 0; 1308 return 0;
1146} 1309}
diff --git a/drivers/acpi/scan.c b/drivers/acpi/scan.c
index 449c556274c0..8ab80bafe3f1 100644
--- a/drivers/acpi/scan.c
+++ b/drivers/acpi/scan.c
@@ -1062,13 +1062,12 @@ static void acpi_add_id(struct acpi_device *device, const char *dev_id)
1062 if (!id) 1062 if (!id)
1063 return; 1063 return;
1064 1064
1065 id->id = kmalloc(strlen(dev_id) + 1, GFP_KERNEL); 1065 id->id = kstrdup(dev_id, GFP_KERNEL);
1066 if (!id->id) { 1066 if (!id->id) {
1067 kfree(id); 1067 kfree(id);
1068 return; 1068 return;
1069 } 1069 }
1070 1070
1071 strcpy(id->id, dev_id);
1072 list_add_tail(&id->list, &device->pnp.ids); 1071 list_add_tail(&id->list, &device->pnp.ids);
1073} 1072}
1074 1073
diff --git a/drivers/acpi/sysfs.c b/drivers/acpi/sysfs.c
index c538d0ef10ff..9f66181c814e 100644
--- a/drivers/acpi/sysfs.c
+++ b/drivers/acpi/sysfs.c
@@ -706,11 +706,23 @@ static void __exit interrupt_stats_exit(void)
706 return; 706 return;
707} 707}
708 708
709static ssize_t
710acpi_show_profile(struct device *dev, struct device_attribute *attr,
711 char *buf)
712{
713 return sprintf(buf, "%d\n", acpi_gbl_FADT.preferred_profile);
714}
715
716static const struct device_attribute pm_profile_attr =
717 __ATTR(pm_profile, S_IRUGO, acpi_show_profile, NULL);
718
709int __init acpi_sysfs_init(void) 719int __init acpi_sysfs_init(void)
710{ 720{
711 int result; 721 int result;
712 722
713 result = acpi_tables_sysfs_init(); 723 result = acpi_tables_sysfs_init();
714 724 if (result)
725 return result;
726 result = sysfs_create_file(acpi_kobj, &pm_profile_attr.attr);
715 return result; 727 return result;
716} 728}
diff --git a/drivers/cpuidle/cpuidle.c b/drivers/cpuidle/cpuidle.c
index becd6d99203b..06ce2680d00d 100644
--- a/drivers/cpuidle/cpuidle.c
+++ b/drivers/cpuidle/cpuidle.c
@@ -62,8 +62,9 @@ static int __cpuidle_register_device(struct cpuidle_device *dev);
62int cpuidle_idle_call(void) 62int cpuidle_idle_call(void)
63{ 63{
64 struct cpuidle_device *dev = __this_cpu_read(cpuidle_devices); 64 struct cpuidle_device *dev = __this_cpu_read(cpuidle_devices);
65 struct cpuidle_driver *drv = cpuidle_get_driver();
65 struct cpuidle_state *target_state; 66 struct cpuidle_state *target_state;
66 int next_state; 67 int next_state, entered_state;
67 68
68 if (off) 69 if (off)
69 return -ENODEV; 70 return -ENODEV;
@@ -84,45 +85,36 @@ int cpuidle_idle_call(void)
84 hrtimer_peek_ahead_timers(); 85 hrtimer_peek_ahead_timers();
85#endif 86#endif
86 87
87 /*
88 * Call the device's prepare function before calling the
89 * governor's select function. ->prepare gives the device's
90 * cpuidle driver a chance to update any dynamic information
91 * of its cpuidle states for the current idle period, e.g.
92 * state availability, latencies, residencies, etc.
93 */
94 if (dev->prepare)
95 dev->prepare(dev);
96
97 /* ask the governor for the next state */ 88 /* ask the governor for the next state */
98 next_state = cpuidle_curr_governor->select(dev); 89 next_state = cpuidle_curr_governor->select(drv, dev);
99 if (need_resched()) { 90 if (need_resched()) {
100 local_irq_enable(); 91 local_irq_enable();
101 return 0; 92 return 0;
102 } 93 }
103 94
104 target_state = &dev->states[next_state]; 95 target_state = &drv->states[next_state];
105
106 /* enter the state and update stats */
107 dev->last_state = target_state;
108 96
109 trace_power_start(POWER_CSTATE, next_state, dev->cpu); 97 trace_power_start(POWER_CSTATE, next_state, dev->cpu);
110 trace_cpu_idle(next_state, dev->cpu); 98 trace_cpu_idle(next_state, dev->cpu);
111 99
112 dev->last_residency = target_state->enter(dev, target_state); 100 entered_state = target_state->enter(dev, drv, next_state);
113 101
114 trace_power_end(dev->cpu); 102 trace_power_end(dev->cpu);
115 trace_cpu_idle(PWR_EVENT_EXIT, dev->cpu); 103 trace_cpu_idle(PWR_EVENT_EXIT, dev->cpu);
116 104
117 if (dev->last_state) 105 if (entered_state >= 0) {
118 target_state = dev->last_state; 106 /* Update cpuidle counters */
119 107 /* This can be moved to within driver enter routine
120 target_state->time += (unsigned long long)dev->last_residency; 108 * but that results in multiple copies of same code.
121 target_state->usage++; 109 */
110 dev->states_usage[entered_state].time +=
111 (unsigned long long)dev->last_residency;
112 dev->states_usage[entered_state].usage++;
113 }
122 114
123 /* give the governor an opportunity to reflect on the outcome */ 115 /* give the governor an opportunity to reflect on the outcome */
124 if (cpuidle_curr_governor->reflect) 116 if (cpuidle_curr_governor->reflect)
125 cpuidle_curr_governor->reflect(dev); 117 cpuidle_curr_governor->reflect(dev, entered_state);
126 118
127 return 0; 119 return 0;
128} 120}
@@ -173,11 +165,11 @@ void cpuidle_resume_and_unlock(void)
173EXPORT_SYMBOL_GPL(cpuidle_resume_and_unlock); 165EXPORT_SYMBOL_GPL(cpuidle_resume_and_unlock);
174 166
175#ifdef CONFIG_ARCH_HAS_CPU_RELAX 167#ifdef CONFIG_ARCH_HAS_CPU_RELAX
176static int poll_idle(struct cpuidle_device *dev, struct cpuidle_state *st) 168static int poll_idle(struct cpuidle_device *dev,
169 struct cpuidle_driver *drv, int index)
177{ 170{
178 ktime_t t1, t2; 171 ktime_t t1, t2;
179 s64 diff; 172 s64 diff;
180 int ret;
181 173
182 t1 = ktime_get(); 174 t1 = ktime_get();
183 local_irq_enable(); 175 local_irq_enable();
@@ -189,15 +181,14 @@ static int poll_idle(struct cpuidle_device *dev, struct cpuidle_state *st)
189 if (diff > INT_MAX) 181 if (diff > INT_MAX)
190 diff = INT_MAX; 182 diff = INT_MAX;
191 183
192 ret = (int) diff; 184 dev->last_residency = (int) diff;
193 return ret; 185
186 return index;
194} 187}
195 188
196static void poll_idle_init(struct cpuidle_device *dev) 189static void poll_idle_init(struct cpuidle_driver *drv)
197{ 190{
198 struct cpuidle_state *state = &dev->states[0]; 191 struct cpuidle_state *state = &drv->states[0];
199
200 cpuidle_set_statedata(state, NULL);
201 192
202 snprintf(state->name, CPUIDLE_NAME_LEN, "POLL"); 193 snprintf(state->name, CPUIDLE_NAME_LEN, "POLL");
203 snprintf(state->desc, CPUIDLE_DESC_LEN, "CPUIDLE CORE POLL IDLE"); 194 snprintf(state->desc, CPUIDLE_DESC_LEN, "CPUIDLE CORE POLL IDLE");
@@ -208,7 +199,7 @@ static void poll_idle_init(struct cpuidle_device *dev)
208 state->enter = poll_idle; 199 state->enter = poll_idle;
209} 200}
210#else 201#else
211static void poll_idle_init(struct cpuidle_device *dev) {} 202static void poll_idle_init(struct cpuidle_driver *drv) {}
212#endif /* CONFIG_ARCH_HAS_CPU_RELAX */ 203#endif /* CONFIG_ARCH_HAS_CPU_RELAX */
213 204
214/** 205/**
@@ -235,21 +226,20 @@ int cpuidle_enable_device(struct cpuidle_device *dev)
235 return ret; 226 return ret;
236 } 227 }
237 228
238 poll_idle_init(dev); 229 poll_idle_init(cpuidle_get_driver());
239 230
240 if ((ret = cpuidle_add_state_sysfs(dev))) 231 if ((ret = cpuidle_add_state_sysfs(dev)))
241 return ret; 232 return ret;
242 233
243 if (cpuidle_curr_governor->enable && 234 if (cpuidle_curr_governor->enable &&
244 (ret = cpuidle_curr_governor->enable(dev))) 235 (ret = cpuidle_curr_governor->enable(cpuidle_get_driver(), dev)))
245 goto fail_sysfs; 236 goto fail_sysfs;
246 237
247 for (i = 0; i < dev->state_count; i++) { 238 for (i = 0; i < dev->state_count; i++) {
248 dev->states[i].usage = 0; 239 dev->states_usage[i].usage = 0;
249 dev->states[i].time = 0; 240 dev->states_usage[i].time = 0;
250 } 241 }
251 dev->last_residency = 0; 242 dev->last_residency = 0;
252 dev->last_state = NULL;
253 243
254 smp_wmb(); 244 smp_wmb();
255 245
@@ -283,7 +273,7 @@ void cpuidle_disable_device(struct cpuidle_device *dev)
283 dev->enabled = 0; 273 dev->enabled = 0;
284 274
285 if (cpuidle_curr_governor->disable) 275 if (cpuidle_curr_governor->disable)
286 cpuidle_curr_governor->disable(dev); 276 cpuidle_curr_governor->disable(cpuidle_get_driver(), dev);
287 277
288 cpuidle_remove_state_sysfs(dev); 278 cpuidle_remove_state_sysfs(dev);
289 enabled_devices--; 279 enabled_devices--;
@@ -311,26 +301,6 @@ static int __cpuidle_register_device(struct cpuidle_device *dev)
311 301
312 init_completion(&dev->kobj_unregister); 302 init_completion(&dev->kobj_unregister);
313 303
314 /*
315 * cpuidle driver should set the dev->power_specified bit
316 * before registering the device if the driver provides
317 * power_usage numbers.
318 *
319 * For those devices whose ->power_specified is not set,
320 * we fill in power_usage with decreasing values as the
321 * cpuidle code has an implicit assumption that state Cn
322 * uses less power than C(n-1).
323 *
324 * With CONFIG_ARCH_HAS_CPU_RELAX, C0 is already assigned
325 * an power value of -1. So we use -2, -3, etc, for other
326 * c-states.
327 */
328 if (!dev->power_specified) {
329 int i;
330 for (i = CPUIDLE_DRIVER_STATE_START; i < dev->state_count; i++)
331 dev->states[i].power_usage = -1 - i;
332 }
333
334 per_cpu(cpuidle_devices, dev->cpu) = dev; 304 per_cpu(cpuidle_devices, dev->cpu) = dev;
335 list_add(&dev->device_list, &cpuidle_detected_devices); 305 list_add(&dev->device_list, &cpuidle_detected_devices);
336 if ((ret = cpuidle_add_sysfs(sys_dev))) { 306 if ((ret = cpuidle_add_sysfs(sys_dev))) {
diff --git a/drivers/cpuidle/driver.c b/drivers/cpuidle/driver.c
index 3f7e3cedd133..284d7af5a9c8 100644
--- a/drivers/cpuidle/driver.c
+++ b/drivers/cpuidle/driver.c
@@ -17,6 +17,30 @@
17static struct cpuidle_driver *cpuidle_curr_driver; 17static struct cpuidle_driver *cpuidle_curr_driver;
18DEFINE_SPINLOCK(cpuidle_driver_lock); 18DEFINE_SPINLOCK(cpuidle_driver_lock);
19 19
20static void __cpuidle_register_driver(struct cpuidle_driver *drv)
21{
22 int i;
23 /*
24 * cpuidle driver should set the drv->power_specified bit
25 * before registering if the driver provides
26 * power_usage numbers.
27 *
28 * If power_specified is not set,
29 * we fill in power_usage with decreasing values as the
30 * cpuidle code has an implicit assumption that state Cn
31 * uses less power than C(n-1).
32 *
33 * With CONFIG_ARCH_HAS_CPU_RELAX, C0 is already assigned
34 * an power value of -1. So we use -2, -3, etc, for other
35 * c-states.
36 */
37 if (!drv->power_specified) {
38 for (i = CPUIDLE_DRIVER_STATE_START; i < drv->state_count; i++)
39 drv->states[i].power_usage = -1 - i;
40 }
41}
42
43
20/** 44/**
21 * cpuidle_register_driver - registers a driver 45 * cpuidle_register_driver - registers a driver
22 * @drv: the driver 46 * @drv: the driver
@@ -34,6 +58,7 @@ int cpuidle_register_driver(struct cpuidle_driver *drv)
34 spin_unlock(&cpuidle_driver_lock); 58 spin_unlock(&cpuidle_driver_lock);
35 return -EBUSY; 59 return -EBUSY;
36 } 60 }
61 __cpuidle_register_driver(drv);
37 cpuidle_curr_driver = drv; 62 cpuidle_curr_driver = drv;
38 spin_unlock(&cpuidle_driver_lock); 63 spin_unlock(&cpuidle_driver_lock);
39 64
diff --git a/drivers/cpuidle/governors/ladder.c b/drivers/cpuidle/governors/ladder.c
index 3b8fce20f023..b6a09ea859b1 100644
--- a/drivers/cpuidle/governors/ladder.c
+++ b/drivers/cpuidle/governors/ladder.c
@@ -60,9 +60,11 @@ static inline void ladder_do_selection(struct ladder_device *ldev,
60 60
61/** 61/**
62 * ladder_select_state - selects the next state to enter 62 * ladder_select_state - selects the next state to enter
63 * @drv: cpuidle driver
63 * @dev: the CPU 64 * @dev: the CPU
64 */ 65 */
65static int ladder_select_state(struct cpuidle_device *dev) 66static int ladder_select_state(struct cpuidle_driver *drv,
67 struct cpuidle_device *dev)
66{ 68{
67 struct ladder_device *ldev = &__get_cpu_var(ladder_devices); 69 struct ladder_device *ldev = &__get_cpu_var(ladder_devices);
68 struct ladder_device_state *last_state; 70 struct ladder_device_state *last_state;
@@ -77,15 +79,17 @@ static int ladder_select_state(struct cpuidle_device *dev)
77 79
78 last_state = &ldev->states[last_idx]; 80 last_state = &ldev->states[last_idx];
79 81
80 if (dev->states[last_idx].flags & CPUIDLE_FLAG_TIME_VALID) 82 if (drv->states[last_idx].flags & CPUIDLE_FLAG_TIME_VALID) {
81 last_residency = cpuidle_get_last_residency(dev) - dev->states[last_idx].exit_latency; 83 last_residency = cpuidle_get_last_residency(dev) - \
84 drv->states[last_idx].exit_latency;
85 }
82 else 86 else
83 last_residency = last_state->threshold.promotion_time + 1; 87 last_residency = last_state->threshold.promotion_time + 1;
84 88
85 /* consider promotion */ 89 /* consider promotion */
86 if (last_idx < dev->state_count - 1 && 90 if (last_idx < drv->state_count - 1 &&
87 last_residency > last_state->threshold.promotion_time && 91 last_residency > last_state->threshold.promotion_time &&
88 dev->states[last_idx + 1].exit_latency <= latency_req) { 92 drv->states[last_idx + 1].exit_latency <= latency_req) {
89 last_state->stats.promotion_count++; 93 last_state->stats.promotion_count++;
90 last_state->stats.demotion_count = 0; 94 last_state->stats.demotion_count = 0;
91 if (last_state->stats.promotion_count >= last_state->threshold.promotion_count) { 95 if (last_state->stats.promotion_count >= last_state->threshold.promotion_count) {
@@ -96,11 +100,11 @@ static int ladder_select_state(struct cpuidle_device *dev)
96 100
97 /* consider demotion */ 101 /* consider demotion */
98 if (last_idx > CPUIDLE_DRIVER_STATE_START && 102 if (last_idx > CPUIDLE_DRIVER_STATE_START &&
99 dev->states[last_idx].exit_latency > latency_req) { 103 drv->states[last_idx].exit_latency > latency_req) {
100 int i; 104 int i;
101 105
102 for (i = last_idx - 1; i > CPUIDLE_DRIVER_STATE_START; i--) { 106 for (i = last_idx - 1; i > CPUIDLE_DRIVER_STATE_START; i--) {
103 if (dev->states[i].exit_latency <= latency_req) 107 if (drv->states[i].exit_latency <= latency_req)
104 break; 108 break;
105 } 109 }
106 ladder_do_selection(ldev, last_idx, i); 110 ladder_do_selection(ldev, last_idx, i);
@@ -123,9 +127,11 @@ static int ladder_select_state(struct cpuidle_device *dev)
123 127
124/** 128/**
125 * ladder_enable_device - setup for the governor 129 * ladder_enable_device - setup for the governor
130 * @drv: cpuidle driver
126 * @dev: the CPU 131 * @dev: the CPU
127 */ 132 */
128static int ladder_enable_device(struct cpuidle_device *dev) 133static int ladder_enable_device(struct cpuidle_driver *drv,
134 struct cpuidle_device *dev)
129{ 135{
130 int i; 136 int i;
131 struct ladder_device *ldev = &per_cpu(ladder_devices, dev->cpu); 137 struct ladder_device *ldev = &per_cpu(ladder_devices, dev->cpu);
@@ -134,8 +140,8 @@ static int ladder_enable_device(struct cpuidle_device *dev)
134 140
135 ldev->last_state_idx = CPUIDLE_DRIVER_STATE_START; 141 ldev->last_state_idx = CPUIDLE_DRIVER_STATE_START;
136 142
137 for (i = 0; i < dev->state_count; i++) { 143 for (i = 0; i < drv->state_count; i++) {
138 state = &dev->states[i]; 144 state = &drv->states[i];
139 lstate = &ldev->states[i]; 145 lstate = &ldev->states[i];
140 146
141 lstate->stats.promotion_count = 0; 147 lstate->stats.promotion_count = 0;
@@ -144,7 +150,7 @@ static int ladder_enable_device(struct cpuidle_device *dev)
144 lstate->threshold.promotion_count = PROMOTION_COUNT; 150 lstate->threshold.promotion_count = PROMOTION_COUNT;
145 lstate->threshold.demotion_count = DEMOTION_COUNT; 151 lstate->threshold.demotion_count = DEMOTION_COUNT;
146 152
147 if (i < dev->state_count - 1) 153 if (i < drv->state_count - 1)
148 lstate->threshold.promotion_time = state->exit_latency; 154 lstate->threshold.promotion_time = state->exit_latency;
149 if (i > 0) 155 if (i > 0)
150 lstate->threshold.demotion_time = state->exit_latency; 156 lstate->threshold.demotion_time = state->exit_latency;
@@ -153,11 +159,24 @@ static int ladder_enable_device(struct cpuidle_device *dev)
153 return 0; 159 return 0;
154} 160}
155 161
162/**
163 * ladder_reflect - update the correct last_state_idx
164 * @dev: the CPU
165 * @index: the index of actual state entered
166 */
167static void ladder_reflect(struct cpuidle_device *dev, int index)
168{
169 struct ladder_device *ldev = &__get_cpu_var(ladder_devices);
170 if (index > 0)
171 ldev->last_state_idx = index;
172}
173
156static struct cpuidle_governor ladder_governor = { 174static struct cpuidle_governor ladder_governor = {
157 .name = "ladder", 175 .name = "ladder",
158 .rating = 10, 176 .rating = 10,
159 .enable = ladder_enable_device, 177 .enable = ladder_enable_device,
160 .select = ladder_select_state, 178 .select = ladder_select_state,
179 .reflect = ladder_reflect,
161 .owner = THIS_MODULE, 180 .owner = THIS_MODULE,
162}; 181};
163 182
diff --git a/drivers/cpuidle/governors/menu.c b/drivers/cpuidle/governors/menu.c
index 00275244ce2f..ad0952601ae2 100644
--- a/drivers/cpuidle/governors/menu.c
+++ b/drivers/cpuidle/governors/menu.c
@@ -183,7 +183,7 @@ static inline int performance_multiplier(void)
183 183
184static DEFINE_PER_CPU(struct menu_device, menu_devices); 184static DEFINE_PER_CPU(struct menu_device, menu_devices);
185 185
186static void menu_update(struct cpuidle_device *dev); 186static void menu_update(struct cpuidle_driver *drv, struct cpuidle_device *dev);
187 187
188/* This implements DIV_ROUND_CLOSEST but avoids 64 bit division */ 188/* This implements DIV_ROUND_CLOSEST but avoids 64 bit division */
189static u64 div_round64(u64 dividend, u32 divisor) 189static u64 div_round64(u64 dividend, u32 divisor)
@@ -229,9 +229,10 @@ static void detect_repeating_patterns(struct menu_device *data)
229 229
230/** 230/**
231 * menu_select - selects the next idle state to enter 231 * menu_select - selects the next idle state to enter
232 * @drv: cpuidle driver containing state data
232 * @dev: the CPU 233 * @dev: the CPU
233 */ 234 */
234static int menu_select(struct cpuidle_device *dev) 235static int menu_select(struct cpuidle_driver *drv, struct cpuidle_device *dev)
235{ 236{
236 struct menu_device *data = &__get_cpu_var(menu_devices); 237 struct menu_device *data = &__get_cpu_var(menu_devices);
237 int latency_req = pm_qos_request(PM_QOS_CPU_DMA_LATENCY); 238 int latency_req = pm_qos_request(PM_QOS_CPU_DMA_LATENCY);
@@ -241,7 +242,7 @@ static int menu_select(struct cpuidle_device *dev)
241 struct timespec t; 242 struct timespec t;
242 243
243 if (data->needs_update) { 244 if (data->needs_update) {
244 menu_update(dev); 245 menu_update(drv, dev);
245 data->needs_update = 0; 246 data->needs_update = 0;
246 } 247 }
247 248
@@ -286,11 +287,9 @@ static int menu_select(struct cpuidle_device *dev)
286 * Find the idle state with the lowest power while satisfying 287 * Find the idle state with the lowest power while satisfying
287 * our constraints. 288 * our constraints.
288 */ 289 */
289 for (i = CPUIDLE_DRIVER_STATE_START; i < dev->state_count; i++) { 290 for (i = CPUIDLE_DRIVER_STATE_START; i < drv->state_count; i++) {
290 struct cpuidle_state *s = &dev->states[i]; 291 struct cpuidle_state *s = &drv->states[i];
291 292
292 if (s->flags & CPUIDLE_FLAG_IGNORE)
293 continue;
294 if (s->target_residency > data->predicted_us) 293 if (s->target_residency > data->predicted_us)
295 continue; 294 continue;
296 if (s->exit_latency > latency_req) 295 if (s->exit_latency > latency_req)
@@ -311,26 +310,30 @@ static int menu_select(struct cpuidle_device *dev)
311/** 310/**
312 * menu_reflect - records that data structures need update 311 * menu_reflect - records that data structures need update
313 * @dev: the CPU 312 * @dev: the CPU
313 * @index: the index of actual entered state
314 * 314 *
315 * NOTE: it's important to be fast here because this operation will add to 315 * NOTE: it's important to be fast here because this operation will add to
316 * the overall exit latency. 316 * the overall exit latency.
317 */ 317 */
318static void menu_reflect(struct cpuidle_device *dev) 318static void menu_reflect(struct cpuidle_device *dev, int index)
319{ 319{
320 struct menu_device *data = &__get_cpu_var(menu_devices); 320 struct menu_device *data = &__get_cpu_var(menu_devices);
321 data->needs_update = 1; 321 data->last_state_idx = index;
322 if (index >= 0)
323 data->needs_update = 1;
322} 324}
323 325
324/** 326/**
325 * menu_update - attempts to guess what happened after entry 327 * menu_update - attempts to guess what happened after entry
328 * @drv: cpuidle driver containing state data
326 * @dev: the CPU 329 * @dev: the CPU
327 */ 330 */
328static void menu_update(struct cpuidle_device *dev) 331static void menu_update(struct cpuidle_driver *drv, struct cpuidle_device *dev)
329{ 332{
330 struct menu_device *data = &__get_cpu_var(menu_devices); 333 struct menu_device *data = &__get_cpu_var(menu_devices);
331 int last_idx = data->last_state_idx; 334 int last_idx = data->last_state_idx;
332 unsigned int last_idle_us = cpuidle_get_last_residency(dev); 335 unsigned int last_idle_us = cpuidle_get_last_residency(dev);
333 struct cpuidle_state *target = &dev->states[last_idx]; 336 struct cpuidle_state *target = &drv->states[last_idx];
334 unsigned int measured_us; 337 unsigned int measured_us;
335 u64 new_factor; 338 u64 new_factor;
336 339
@@ -384,9 +387,11 @@ static void menu_update(struct cpuidle_device *dev)
384 387
385/** 388/**
386 * menu_enable_device - scans a CPU's states and does setup 389 * menu_enable_device - scans a CPU's states and does setup
390 * @drv: cpuidle driver
387 * @dev: the CPU 391 * @dev: the CPU
388 */ 392 */
389static int menu_enable_device(struct cpuidle_device *dev) 393static int menu_enable_device(struct cpuidle_driver *drv,
394 struct cpuidle_device *dev)
390{ 395{
391 struct menu_device *data = &per_cpu(menu_devices, dev->cpu); 396 struct menu_device *data = &per_cpu(menu_devices, dev->cpu);
392 397
diff --git a/drivers/cpuidle/sysfs.c b/drivers/cpuidle/sysfs.c
index be7917ec40c9..1e756e160dca 100644
--- a/drivers/cpuidle/sysfs.c
+++ b/drivers/cpuidle/sysfs.c
@@ -216,7 +216,8 @@ static struct kobj_type ktype_cpuidle = {
216 216
217struct cpuidle_state_attr { 217struct cpuidle_state_attr {
218 struct attribute attr; 218 struct attribute attr;
219 ssize_t (*show)(struct cpuidle_state *, char *); 219 ssize_t (*show)(struct cpuidle_state *, \
220 struct cpuidle_state_usage *, char *);
220 ssize_t (*store)(struct cpuidle_state *, const char *, size_t); 221 ssize_t (*store)(struct cpuidle_state *, const char *, size_t);
221}; 222};
222 223
@@ -224,19 +225,22 @@ struct cpuidle_state_attr {
224static struct cpuidle_state_attr attr_##_name = __ATTR(_name, 0444, show, NULL) 225static struct cpuidle_state_attr attr_##_name = __ATTR(_name, 0444, show, NULL)
225 226
226#define define_show_state_function(_name) \ 227#define define_show_state_function(_name) \
227static ssize_t show_state_##_name(struct cpuidle_state *state, char *buf) \ 228static ssize_t show_state_##_name(struct cpuidle_state *state, \
229 struct cpuidle_state_usage *state_usage, char *buf) \
228{ \ 230{ \
229 return sprintf(buf, "%u\n", state->_name);\ 231 return sprintf(buf, "%u\n", state->_name);\
230} 232}
231 233
232#define define_show_state_ull_function(_name) \ 234#define define_show_state_ull_function(_name) \
233static ssize_t show_state_##_name(struct cpuidle_state *state, char *buf) \ 235static ssize_t show_state_##_name(struct cpuidle_state *state, \
236 struct cpuidle_state_usage *state_usage, char *buf) \
234{ \ 237{ \
235 return sprintf(buf, "%llu\n", state->_name);\ 238 return sprintf(buf, "%llu\n", state_usage->_name);\
236} 239}
237 240
238#define define_show_state_str_function(_name) \ 241#define define_show_state_str_function(_name) \
239static ssize_t show_state_##_name(struct cpuidle_state *state, char *buf) \ 242static ssize_t show_state_##_name(struct cpuidle_state *state, \
243 struct cpuidle_state_usage *state_usage, char *buf) \
240{ \ 244{ \
241 if (state->_name[0] == '\0')\ 245 if (state->_name[0] == '\0')\
242 return sprintf(buf, "<null>\n");\ 246 return sprintf(buf, "<null>\n");\
@@ -269,16 +273,18 @@ static struct attribute *cpuidle_state_default_attrs[] = {
269 273
270#define kobj_to_state_obj(k) container_of(k, struct cpuidle_state_kobj, kobj) 274#define kobj_to_state_obj(k) container_of(k, struct cpuidle_state_kobj, kobj)
271#define kobj_to_state(k) (kobj_to_state_obj(k)->state) 275#define kobj_to_state(k) (kobj_to_state_obj(k)->state)
276#define kobj_to_state_usage(k) (kobj_to_state_obj(k)->state_usage)
272#define attr_to_stateattr(a) container_of(a, struct cpuidle_state_attr, attr) 277#define attr_to_stateattr(a) container_of(a, struct cpuidle_state_attr, attr)
273static ssize_t cpuidle_state_show(struct kobject * kobj, 278static ssize_t cpuidle_state_show(struct kobject * kobj,
274 struct attribute * attr ,char * buf) 279 struct attribute * attr ,char * buf)
275{ 280{
276 int ret = -EIO; 281 int ret = -EIO;
277 struct cpuidle_state *state = kobj_to_state(kobj); 282 struct cpuidle_state *state = kobj_to_state(kobj);
283 struct cpuidle_state_usage *state_usage = kobj_to_state_usage(kobj);
278 struct cpuidle_state_attr * cattr = attr_to_stateattr(attr); 284 struct cpuidle_state_attr * cattr = attr_to_stateattr(attr);
279 285
280 if (cattr->show) 286 if (cattr->show)
281 ret = cattr->show(state, buf); 287 ret = cattr->show(state, state_usage, buf);
282 288
283 return ret; 289 return ret;
284} 290}
@@ -316,13 +322,15 @@ int cpuidle_add_state_sysfs(struct cpuidle_device *device)
316{ 322{
317 int i, ret = -ENOMEM; 323 int i, ret = -ENOMEM;
318 struct cpuidle_state_kobj *kobj; 324 struct cpuidle_state_kobj *kobj;
325 struct cpuidle_driver *drv = cpuidle_get_driver();
319 326
320 /* state statistics */ 327 /* state statistics */
321 for (i = 0; i < device->state_count; i++) { 328 for (i = 0; i < device->state_count; i++) {
322 kobj = kzalloc(sizeof(struct cpuidle_state_kobj), GFP_KERNEL); 329 kobj = kzalloc(sizeof(struct cpuidle_state_kobj), GFP_KERNEL);
323 if (!kobj) 330 if (!kobj)
324 goto error_state; 331 goto error_state;
325 kobj->state = &device->states[i]; 332 kobj->state = &drv->states[i];
333 kobj->state_usage = &device->states_usage[i];
326 init_completion(&kobj->kobj_unregister); 334 init_completion(&kobj->kobj_unregister);
327 335
328 ret = kobject_init_and_add(&kobj->kobj, &ktype_state_cpuidle, &device->kobj, 336 ret = kobject_init_and_add(&kobj->kobj, &ktype_state_cpuidle, &device->kobj,
diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c
index 18767f8ab090..5d2f8e13cf0e 100644
--- a/drivers/idle/intel_idle.c
+++ b/drivers/idle/intel_idle.c
@@ -82,7 +82,8 @@ static unsigned int mwait_substates;
82static unsigned int lapic_timer_reliable_states = (1 << 1); /* Default to only C1 */ 82static unsigned int lapic_timer_reliable_states = (1 << 1); /* Default to only C1 */
83 83
84static struct cpuidle_device __percpu *intel_idle_cpuidle_devices; 84static struct cpuidle_device __percpu *intel_idle_cpuidle_devices;
85static int intel_idle(struct cpuidle_device *dev, struct cpuidle_state *state); 85static int intel_idle(struct cpuidle_device *dev,
86 struct cpuidle_driver *drv, int index);
86 87
87static struct cpuidle_state *cpuidle_state_table; 88static struct cpuidle_state *cpuidle_state_table;
88 89
@@ -110,7 +111,6 @@ static struct cpuidle_state nehalem_cstates[MWAIT_MAX_NUM_CSTATES] = {
110 { /* MWAIT C1 */ 111 { /* MWAIT C1 */
111 .name = "C1-NHM", 112 .name = "C1-NHM",
112 .desc = "MWAIT 0x00", 113 .desc = "MWAIT 0x00",
113 .driver_data = (void *) 0x00,
114 .flags = CPUIDLE_FLAG_TIME_VALID, 114 .flags = CPUIDLE_FLAG_TIME_VALID,
115 .exit_latency = 3, 115 .exit_latency = 3,
116 .target_residency = 6, 116 .target_residency = 6,
@@ -118,7 +118,6 @@ static struct cpuidle_state nehalem_cstates[MWAIT_MAX_NUM_CSTATES] = {
118 { /* MWAIT C2 */ 118 { /* MWAIT C2 */
119 .name = "C3-NHM", 119 .name = "C3-NHM",
120 .desc = "MWAIT 0x10", 120 .desc = "MWAIT 0x10",
121 .driver_data = (void *) 0x10,
122 .flags = CPUIDLE_FLAG_TIME_VALID | CPUIDLE_FLAG_TLB_FLUSHED, 121 .flags = CPUIDLE_FLAG_TIME_VALID | CPUIDLE_FLAG_TLB_FLUSHED,
123 .exit_latency = 20, 122 .exit_latency = 20,
124 .target_residency = 80, 123 .target_residency = 80,
@@ -126,7 +125,6 @@ static struct cpuidle_state nehalem_cstates[MWAIT_MAX_NUM_CSTATES] = {
126 { /* MWAIT C3 */ 125 { /* MWAIT C3 */
127 .name = "C6-NHM", 126 .name = "C6-NHM",
128 .desc = "MWAIT 0x20", 127 .desc = "MWAIT 0x20",
129 .driver_data = (void *) 0x20,
130 .flags = CPUIDLE_FLAG_TIME_VALID | CPUIDLE_FLAG_TLB_FLUSHED, 128 .flags = CPUIDLE_FLAG_TIME_VALID | CPUIDLE_FLAG_TLB_FLUSHED,
131 .exit_latency = 200, 129 .exit_latency = 200,
132 .target_residency = 800, 130 .target_residency = 800,
@@ -138,7 +136,6 @@ static struct cpuidle_state snb_cstates[MWAIT_MAX_NUM_CSTATES] = {
138 { /* MWAIT C1 */ 136 { /* MWAIT C1 */
139 .name = "C1-SNB", 137 .name = "C1-SNB",
140 .desc = "MWAIT 0x00", 138 .desc = "MWAIT 0x00",
141 .driver_data = (void *) 0x00,
142 .flags = CPUIDLE_FLAG_TIME_VALID, 139 .flags = CPUIDLE_FLAG_TIME_VALID,
143 .exit_latency = 1, 140 .exit_latency = 1,
144 .target_residency = 1, 141 .target_residency = 1,
@@ -146,7 +143,6 @@ static struct cpuidle_state snb_cstates[MWAIT_MAX_NUM_CSTATES] = {
146 { /* MWAIT C2 */ 143 { /* MWAIT C2 */
147 .name = "C3-SNB", 144 .name = "C3-SNB",
148 .desc = "MWAIT 0x10", 145 .desc = "MWAIT 0x10",
149 .driver_data = (void *) 0x10,
150 .flags = CPUIDLE_FLAG_TIME_VALID | CPUIDLE_FLAG_TLB_FLUSHED, 146 .flags = CPUIDLE_FLAG_TIME_VALID | CPUIDLE_FLAG_TLB_FLUSHED,
151 .exit_latency = 80, 147 .exit_latency = 80,
152 .target_residency = 211, 148 .target_residency = 211,
@@ -154,7 +150,6 @@ static struct cpuidle_state snb_cstates[MWAIT_MAX_NUM_CSTATES] = {
154 { /* MWAIT C3 */ 150 { /* MWAIT C3 */
155 .name = "C6-SNB", 151 .name = "C6-SNB",
156 .desc = "MWAIT 0x20", 152 .desc = "MWAIT 0x20",
157 .driver_data = (void *) 0x20,
158 .flags = CPUIDLE_FLAG_TIME_VALID | CPUIDLE_FLAG_TLB_FLUSHED, 153 .flags = CPUIDLE_FLAG_TIME_VALID | CPUIDLE_FLAG_TLB_FLUSHED,
159 .exit_latency = 104, 154 .exit_latency = 104,
160 .target_residency = 345, 155 .target_residency = 345,
@@ -162,7 +157,6 @@ static struct cpuidle_state snb_cstates[MWAIT_MAX_NUM_CSTATES] = {
162 { /* MWAIT C4 */ 157 { /* MWAIT C4 */
163 .name = "C7-SNB", 158 .name = "C7-SNB",
164 .desc = "MWAIT 0x30", 159 .desc = "MWAIT 0x30",
165 .driver_data = (void *) 0x30,
166 .flags = CPUIDLE_FLAG_TIME_VALID | CPUIDLE_FLAG_TLB_FLUSHED, 160 .flags = CPUIDLE_FLAG_TIME_VALID | CPUIDLE_FLAG_TLB_FLUSHED,
167 .exit_latency = 109, 161 .exit_latency = 109,
168 .target_residency = 345, 162 .target_residency = 345,
@@ -174,7 +168,6 @@ static struct cpuidle_state atom_cstates[MWAIT_MAX_NUM_CSTATES] = {
174 { /* MWAIT C1 */ 168 { /* MWAIT C1 */
175 .name = "C1-ATM", 169 .name = "C1-ATM",
176 .desc = "MWAIT 0x00", 170 .desc = "MWAIT 0x00",
177 .driver_data = (void *) 0x00,
178 .flags = CPUIDLE_FLAG_TIME_VALID, 171 .flags = CPUIDLE_FLAG_TIME_VALID,
179 .exit_latency = 1, 172 .exit_latency = 1,
180 .target_residency = 4, 173 .target_residency = 4,
@@ -182,7 +175,6 @@ static struct cpuidle_state atom_cstates[MWAIT_MAX_NUM_CSTATES] = {
182 { /* MWAIT C2 */ 175 { /* MWAIT C2 */
183 .name = "C2-ATM", 176 .name = "C2-ATM",
184 .desc = "MWAIT 0x10", 177 .desc = "MWAIT 0x10",
185 .driver_data = (void *) 0x10,
186 .flags = CPUIDLE_FLAG_TIME_VALID, 178 .flags = CPUIDLE_FLAG_TIME_VALID,
187 .exit_latency = 20, 179 .exit_latency = 20,
188 .target_residency = 80, 180 .target_residency = 80,
@@ -191,7 +183,6 @@ static struct cpuidle_state atom_cstates[MWAIT_MAX_NUM_CSTATES] = {
191 { /* MWAIT C4 */ 183 { /* MWAIT C4 */
192 .name = "C4-ATM", 184 .name = "C4-ATM",
193 .desc = "MWAIT 0x30", 185 .desc = "MWAIT 0x30",
194 .driver_data = (void *) 0x30,
195 .flags = CPUIDLE_FLAG_TIME_VALID | CPUIDLE_FLAG_TLB_FLUSHED, 186 .flags = CPUIDLE_FLAG_TIME_VALID | CPUIDLE_FLAG_TLB_FLUSHED,
196 .exit_latency = 100, 187 .exit_latency = 100,
197 .target_residency = 400, 188 .target_residency = 400,
@@ -200,23 +191,55 @@ static struct cpuidle_state atom_cstates[MWAIT_MAX_NUM_CSTATES] = {
200 { /* MWAIT C6 */ 191 { /* MWAIT C6 */
201 .name = "C6-ATM", 192 .name = "C6-ATM",
202 .desc = "MWAIT 0x52", 193 .desc = "MWAIT 0x52",
203 .driver_data = (void *) 0x52,
204 .flags = CPUIDLE_FLAG_TIME_VALID | CPUIDLE_FLAG_TLB_FLUSHED, 194 .flags = CPUIDLE_FLAG_TIME_VALID | CPUIDLE_FLAG_TLB_FLUSHED,
205 .exit_latency = 140, 195 .exit_latency = 140,
206 .target_residency = 560, 196 .target_residency = 560,
207 .enter = &intel_idle }, 197 .enter = &intel_idle },
208}; 198};
209 199
200static int get_driver_data(int cstate)
201{
202 int driver_data;
203 switch (cstate) {
204
205 case 1: /* MWAIT C1 */
206 driver_data = 0x00;
207 break;
208 case 2: /* MWAIT C2 */
209 driver_data = 0x10;
210 break;
211 case 3: /* MWAIT C3 */
212 driver_data = 0x20;
213 break;
214 case 4: /* MWAIT C4 */
215 driver_data = 0x30;
216 break;
217 case 5: /* MWAIT C5 */
218 driver_data = 0x40;
219 break;
220 case 6: /* MWAIT C6 */
221 driver_data = 0x52;
222 break;
223 default:
224 driver_data = 0x00;
225 }
226 return driver_data;
227}
228
210/** 229/**
211 * intel_idle 230 * intel_idle
212 * @dev: cpuidle_device 231 * @dev: cpuidle_device
213 * @state: cpuidle state 232 * @drv: cpuidle driver
233 * @index: index of cpuidle state
214 * 234 *
215 */ 235 */
216static int intel_idle(struct cpuidle_device *dev, struct cpuidle_state *state) 236static int intel_idle(struct cpuidle_device *dev,
237 struct cpuidle_driver *drv, int index)
217{ 238{
218 unsigned long ecx = 1; /* break on interrupt flag */ 239 unsigned long ecx = 1; /* break on interrupt flag */
219 unsigned long eax = (unsigned long)cpuidle_get_statedata(state); 240 struct cpuidle_state *state = &drv->states[index];
241 struct cpuidle_state_usage *state_usage = &dev->states_usage[index];
242 unsigned long eax = (unsigned long)cpuidle_get_statedata(state_usage);
220 unsigned int cstate; 243 unsigned int cstate;
221 ktime_t kt_before, kt_after; 244 ktime_t kt_before, kt_after;
222 s64 usec_delta; 245 s64 usec_delta;
@@ -257,7 +280,10 @@ static int intel_idle(struct cpuidle_device *dev, struct cpuidle_state *state)
257 if (!(lapic_timer_reliable_states & (1 << (cstate)))) 280 if (!(lapic_timer_reliable_states & (1 << (cstate))))
258 clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_EXIT, &cpu); 281 clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_EXIT, &cpu);
259 282
260 return usec_delta; 283 /* Update cpuidle counters */
284 dev->last_residency = (int)usec_delta;
285
286 return index;
261} 287}
262 288
263static void __setup_broadcast_timer(void *arg) 289static void __setup_broadcast_timer(void *arg)
@@ -398,6 +424,60 @@ static void intel_idle_cpuidle_devices_uninit(void)
398 return; 424 return;
399} 425}
400/* 426/*
427 * intel_idle_cpuidle_driver_init()
428 * allocate, initialize cpuidle_states
429 */
430static int intel_idle_cpuidle_driver_init(void)
431{
432 int cstate;
433 struct cpuidle_driver *drv = &intel_idle_driver;
434
435 drv->state_count = 1;
436
437 for (cstate = 1; cstate < MWAIT_MAX_NUM_CSTATES; ++cstate) {
438 int num_substates;
439
440 if (cstate > max_cstate) {
441 printk(PREFIX "max_cstate %d reached\n",
442 max_cstate);
443 break;
444 }
445
446 /* does the state exist in CPUID.MWAIT? */
447 num_substates = (mwait_substates >> ((cstate) * 4))
448 & MWAIT_SUBSTATE_MASK;
449 if (num_substates == 0)
450 continue;
451 /* is the state not enabled? */
452 if (cpuidle_state_table[cstate].enter == NULL) {
453 /* does the driver not know about the state? */
454 if (*cpuidle_state_table[cstate].name == '\0')
455 pr_debug(PREFIX "unaware of model 0x%x"
456 " MWAIT %d please"
457 " contact lenb@kernel.org",
458 boot_cpu_data.x86_model, cstate);
459 continue;
460 }
461
462 if ((cstate > 2) &&
463 !boot_cpu_has(X86_FEATURE_NONSTOP_TSC))
464 mark_tsc_unstable("TSC halts in idle"
465 " states deeper than C2");
466
467 drv->states[drv->state_count] = /* structure copy */
468 cpuidle_state_table[cstate];
469
470 drv->state_count += 1;
471 }
472
473 if (auto_demotion_disable_flags)
474 smp_call_function(auto_demotion_disable, NULL, 1);
475
476 return 0;
477}
478
479
480/*
401 * intel_idle_cpuidle_devices_init() 481 * intel_idle_cpuidle_devices_init()
402 * allocate, initialize, register cpuidle_devices 482 * allocate, initialize, register cpuidle_devices
403 */ 483 */
@@ -431,22 +511,11 @@ static int intel_idle_cpuidle_devices_init(void)
431 continue; 511 continue;
432 /* is the state not enabled? */ 512 /* is the state not enabled? */
433 if (cpuidle_state_table[cstate].enter == NULL) { 513 if (cpuidle_state_table[cstate].enter == NULL) {
434 /* does the driver not know about the state? */
435 if (*cpuidle_state_table[cstate].name == '\0')
436 pr_debug(PREFIX "unaware of model 0x%x"
437 " MWAIT %d please"
438 " contact lenb@kernel.org",
439 boot_cpu_data.x86_model, cstate);
440 continue; 514 continue;
441 } 515 }
442 516
443 if ((cstate > 2) && 517 dev->states_usage[dev->state_count].driver_data =
444 !boot_cpu_has(X86_FEATURE_NONSTOP_TSC)) 518 (void *)get_driver_data(cstate);
445 mark_tsc_unstable("TSC halts in idle"
446 " states deeper than C2");
447
448 dev->states[dev->state_count] = /* structure copy */
449 cpuidle_state_table[cstate];
450 519
451 dev->state_count += 1; 520 dev->state_count += 1;
452 } 521 }
@@ -459,8 +528,6 @@ static int intel_idle_cpuidle_devices_init(void)
459 return -EIO; 528 return -EIO;
460 } 529 }
461 } 530 }
462 if (auto_demotion_disable_flags)
463 smp_call_function(auto_demotion_disable, NULL, 1);
464 531
465 return 0; 532 return 0;
466} 533}
@@ -478,6 +545,7 @@ static int __init intel_idle_init(void)
478 if (retval) 545 if (retval)
479 return retval; 546 return retval;
480 547
548 intel_idle_cpuidle_driver_init();
481 retval = cpuidle_register_driver(&intel_idle_driver); 549 retval = cpuidle_register_driver(&intel_idle_driver);
482 if (retval) { 550 if (retval) {
483 printk(KERN_DEBUG PREFIX "intel_idle yielding to %s", 551 printk(KERN_DEBUG PREFIX "intel_idle yielding to %s",
diff --git a/drivers/pnp/pnpacpi/rsparser.c b/drivers/pnp/pnpacpi/rsparser.c
index bbf3edd85beb..5be4a392a3ae 100644
--- a/drivers/pnp/pnpacpi/rsparser.c
+++ b/drivers/pnp/pnpacpi/rsparser.c
@@ -509,15 +509,12 @@ static __init void pnpacpi_parse_dma_option(struct pnp_dev *dev,
509 struct acpi_resource_dma *p) 509 struct acpi_resource_dma *p)
510{ 510{
511 int i; 511 int i;
512 unsigned char map = 0, flags = 0; 512 unsigned char map = 0, flags;
513
514 if (p->channel_count == 0)
515 flags |= IORESOURCE_DISABLED;
516 513
517 for (i = 0; i < p->channel_count; i++) 514 for (i = 0; i < p->channel_count; i++)
518 map |= 1 << p->channels[i]; 515 map |= 1 << p->channels[i];
519 516
520 flags |= dma_flags(dev, p->type, p->bus_master, p->transfer); 517 flags = dma_flags(dev, p->type, p->bus_master, p->transfer);
521 pnp_register_dma_resource(dev, option_flags, map, flags); 518 pnp_register_dma_resource(dev, option_flags, map, flags);
522} 519}
523 520
@@ -527,17 +524,14 @@ static __init void pnpacpi_parse_irq_option(struct pnp_dev *dev,
527{ 524{
528 int i; 525 int i;
529 pnp_irq_mask_t map; 526 pnp_irq_mask_t map;
530 unsigned char flags = 0; 527 unsigned char flags;
531
532 if (p->interrupt_count == 0)
533 flags |= IORESOURCE_DISABLED;
534 528
535 bitmap_zero(map.bits, PNP_IRQ_NR); 529 bitmap_zero(map.bits, PNP_IRQ_NR);
536 for (i = 0; i < p->interrupt_count; i++) 530 for (i = 0; i < p->interrupt_count; i++)
537 if (p->interrupts[i]) 531 if (p->interrupts[i])
538 __set_bit(p->interrupts[i], map.bits); 532 __set_bit(p->interrupts[i], map.bits);
539 533
540 flags |= irq_flags(p->triggering, p->polarity, p->sharable); 534 flags = irq_flags(p->triggering, p->polarity, p->sharable);
541 pnp_register_irq_resource(dev, option_flags, &map, flags); 535 pnp_register_irq_resource(dev, option_flags, &map, flags);
542} 536}
543 537
@@ -547,10 +541,7 @@ static __init void pnpacpi_parse_ext_irq_option(struct pnp_dev *dev,
547{ 541{
548 int i; 542 int i;
549 pnp_irq_mask_t map; 543 pnp_irq_mask_t map;
550 unsigned char flags = 0; 544 unsigned char flags;
551
552 if (p->interrupt_count == 0)
553 flags |= IORESOURCE_DISABLED;
554 545
555 bitmap_zero(map.bits, PNP_IRQ_NR); 546 bitmap_zero(map.bits, PNP_IRQ_NR);
556 for (i = 0; i < p->interrupt_count; i++) { 547 for (i = 0; i < p->interrupt_count; i++) {
@@ -564,7 +555,7 @@ static __init void pnpacpi_parse_ext_irq_option(struct pnp_dev *dev,
564 } 555 }
565 } 556 }
566 557
567 flags |= irq_flags(p->triggering, p->polarity, p->sharable); 558 flags = irq_flags(p->triggering, p->polarity, p->sharable);
568 pnp_register_irq_resource(dev, option_flags, &map, flags); 559 pnp_register_irq_resource(dev, option_flags, &map, flags);
569} 560}
570 561
@@ -574,11 +565,8 @@ static __init void pnpacpi_parse_port_option(struct pnp_dev *dev,
574{ 565{
575 unsigned char flags = 0; 566 unsigned char flags = 0;
576 567
577 if (io->address_length == 0)
578 flags |= IORESOURCE_DISABLED;
579
580 if (io->io_decode == ACPI_DECODE_16) 568 if (io->io_decode == ACPI_DECODE_16)
581 flags |= IORESOURCE_IO_16BIT_ADDR; 569 flags = IORESOURCE_IO_16BIT_ADDR;
582 pnp_register_port_resource(dev, option_flags, io->minimum, io->maximum, 570 pnp_register_port_resource(dev, option_flags, io->minimum, io->maximum,
583 io->alignment, io->address_length, flags); 571 io->alignment, io->address_length, flags);
584} 572}
@@ -587,13 +575,8 @@ static __init void pnpacpi_parse_fixed_port_option(struct pnp_dev *dev,
587 unsigned int option_flags, 575 unsigned int option_flags,
588 struct acpi_resource_fixed_io *io) 576 struct acpi_resource_fixed_io *io)
589{ 577{
590 unsigned char flags = 0;
591
592 if (io->address_length == 0)
593 flags |= IORESOURCE_DISABLED;
594
595 pnp_register_port_resource(dev, option_flags, io->address, io->address, 578 pnp_register_port_resource(dev, option_flags, io->address, io->address,
596 0, io->address_length, flags | IORESOURCE_IO_FIXED); 579 0, io->address_length, IORESOURCE_IO_FIXED);
597} 580}
598 581
599static __init void pnpacpi_parse_mem24_option(struct pnp_dev *dev, 582static __init void pnpacpi_parse_mem24_option(struct pnp_dev *dev,
@@ -602,11 +585,8 @@ static __init void pnpacpi_parse_mem24_option(struct pnp_dev *dev,
602{ 585{
603 unsigned char flags = 0; 586 unsigned char flags = 0;
604 587
605 if (p->address_length == 0)
606 flags |= IORESOURCE_DISABLED;
607
608 if (p->write_protect == ACPI_READ_WRITE_MEMORY) 588 if (p->write_protect == ACPI_READ_WRITE_MEMORY)
609 flags |= IORESOURCE_MEM_WRITEABLE; 589 flags = IORESOURCE_MEM_WRITEABLE;
610 pnp_register_mem_resource(dev, option_flags, p->minimum, p->maximum, 590 pnp_register_mem_resource(dev, option_flags, p->minimum, p->maximum,
611 p->alignment, p->address_length, flags); 591 p->alignment, p->address_length, flags);
612} 592}
@@ -617,11 +597,8 @@ static __init void pnpacpi_parse_mem32_option(struct pnp_dev *dev,
617{ 597{
618 unsigned char flags = 0; 598 unsigned char flags = 0;
619 599
620 if (p->address_length == 0)
621 flags |= IORESOURCE_DISABLED;
622
623 if (p->write_protect == ACPI_READ_WRITE_MEMORY) 600 if (p->write_protect == ACPI_READ_WRITE_MEMORY)
624 flags |= IORESOURCE_MEM_WRITEABLE; 601 flags = IORESOURCE_MEM_WRITEABLE;
625 pnp_register_mem_resource(dev, option_flags, p->minimum, p->maximum, 602 pnp_register_mem_resource(dev, option_flags, p->minimum, p->maximum,
626 p->alignment, p->address_length, flags); 603 p->alignment, p->address_length, flags);
627} 604}
@@ -632,11 +609,8 @@ static __init void pnpacpi_parse_fixed_mem32_option(struct pnp_dev *dev,
632{ 609{
633 unsigned char flags = 0; 610 unsigned char flags = 0;
634 611
635 if (p->address_length == 0)
636 flags |= IORESOURCE_DISABLED;
637
638 if (p->write_protect == ACPI_READ_WRITE_MEMORY) 612 if (p->write_protect == ACPI_READ_WRITE_MEMORY)
639 flags |= IORESOURCE_MEM_WRITEABLE; 613 flags = IORESOURCE_MEM_WRITEABLE;
640 pnp_register_mem_resource(dev, option_flags, p->address, p->address, 614 pnp_register_mem_resource(dev, option_flags, p->address, p->address,
641 0, p->address_length, flags); 615 0, p->address_length, flags);
642} 616}
@@ -656,19 +630,16 @@ static __init void pnpacpi_parse_address_option(struct pnp_dev *dev,
656 return; 630 return;
657 } 631 }
658 632
659 if (p->address_length == 0)
660 flags |= IORESOURCE_DISABLED;
661
662 if (p->resource_type == ACPI_MEMORY_RANGE) { 633 if (p->resource_type == ACPI_MEMORY_RANGE) {
663 if (p->info.mem.write_protect == ACPI_READ_WRITE_MEMORY) 634 if (p->info.mem.write_protect == ACPI_READ_WRITE_MEMORY)
664 flags |= IORESOURCE_MEM_WRITEABLE; 635 flags = IORESOURCE_MEM_WRITEABLE;
665 pnp_register_mem_resource(dev, option_flags, p->minimum, 636 pnp_register_mem_resource(dev, option_flags, p->minimum,
666 p->minimum, 0, p->address_length, 637 p->minimum, 0, p->address_length,
667 flags); 638 flags);
668 } else if (p->resource_type == ACPI_IO_RANGE) 639 } else if (p->resource_type == ACPI_IO_RANGE)
669 pnp_register_port_resource(dev, option_flags, p->minimum, 640 pnp_register_port_resource(dev, option_flags, p->minimum,
670 p->minimum, 0, p->address_length, 641 p->minimum, 0, p->address_length,
671 flags | IORESOURCE_IO_FIXED); 642 IORESOURCE_IO_FIXED);
672} 643}
673 644
674static __init void pnpacpi_parse_ext_address_option(struct pnp_dev *dev, 645static __init void pnpacpi_parse_ext_address_option(struct pnp_dev *dev,
@@ -678,19 +649,16 @@ static __init void pnpacpi_parse_ext_address_option(struct pnp_dev *dev,
678 struct acpi_resource_extended_address64 *p = &r->data.ext_address64; 649 struct acpi_resource_extended_address64 *p = &r->data.ext_address64;
679 unsigned char flags = 0; 650 unsigned char flags = 0;
680 651
681 if (p->address_length == 0)
682 flags |= IORESOURCE_DISABLED;
683
684 if (p->resource_type == ACPI_MEMORY_RANGE) { 652 if (p->resource_type == ACPI_MEMORY_RANGE) {
685 if (p->info.mem.write_protect == ACPI_READ_WRITE_MEMORY) 653 if (p->info.mem.write_protect == ACPI_READ_WRITE_MEMORY)
686 flags |= IORESOURCE_MEM_WRITEABLE; 654 flags = IORESOURCE_MEM_WRITEABLE;
687 pnp_register_mem_resource(dev, option_flags, p->minimum, 655 pnp_register_mem_resource(dev, option_flags, p->minimum,
688 p->minimum, 0, p->address_length, 656 p->minimum, 0, p->address_length,
689 flags); 657 flags);
690 } else if (p->resource_type == ACPI_IO_RANGE) 658 } else if (p->resource_type == ACPI_IO_RANGE)
691 pnp_register_port_resource(dev, option_flags, p->minimum, 659 pnp_register_port_resource(dev, option_flags, p->minimum,
692 p->minimum, 0, p->address_length, 660 p->minimum, 0, p->address_length,
693 flags | IORESOURCE_IO_FIXED); 661 IORESOURCE_IO_FIXED);
694} 662}
695 663
696struct acpipnp_parse_option_s { 664struct acpipnp_parse_option_s {
diff --git a/drivers/thermal/thermal_sys.c b/drivers/thermal/thermal_sys.c
index 708f8e92771a..dd9a5743fa99 100644
--- a/drivers/thermal/thermal_sys.c
+++ b/drivers/thermal/thermal_sys.c
@@ -678,10 +678,10 @@ static void thermal_zone_device_set_polling(struct thermal_zone_device *tz,
678 return; 678 return;
679 679
680 if (delay > 1000) 680 if (delay > 1000)
681 schedule_delayed_work(&(tz->poll_queue), 681 queue_delayed_work(system_freezable_wq, &(tz->poll_queue),
682 round_jiffies(msecs_to_jiffies(delay))); 682 round_jiffies(msecs_to_jiffies(delay)));
683 else 683 else
684 schedule_delayed_work(&(tz->poll_queue), 684 queue_delayed_work(system_freezable_wq, &(tz->poll_queue),
685 msecs_to_jiffies(delay)); 685 msecs_to_jiffies(delay));
686} 686}
687 687
diff --git a/include/acpi/acpi_drivers.h b/include/acpi/acpi_drivers.h
index e49c36d38d7e..bb145e4b935e 100644
--- a/include/acpi/acpi_drivers.h
+++ b/include/acpi/acpi_drivers.h
@@ -144,7 +144,7 @@ static inline void unregister_dock_notifier(struct notifier_block *nb)
144{ 144{
145} 145}
146static inline int register_hotplug_dock_device(acpi_handle handle, 146static inline int register_hotplug_dock_device(acpi_handle handle,
147 struct acpi_dock_ops *ops, 147 const struct acpi_dock_ops *ops,
148 void *context) 148 void *context)
149{ 149{
150 return -ENODEV; 150 return -ENODEV;
diff --git a/include/acpi/actypes.h b/include/acpi/actypes.h
index b67231bef632..ed73f6705c86 100644
--- a/include/acpi/actypes.h
+++ b/include/acpi/actypes.h
@@ -470,7 +470,6 @@ typedef u64 acpi_integer;
470 */ 470 */
471#define ACPI_FULL_INITIALIZATION 0x00 471#define ACPI_FULL_INITIALIZATION 0x00
472#define ACPI_NO_ADDRESS_SPACE_INIT 0x01 472#define ACPI_NO_ADDRESS_SPACE_INIT 0x01
473#define ACPI_NO_HARDWARE_INIT 0x02
474#define ACPI_NO_EVENT_INIT 0x04 473#define ACPI_NO_EVENT_INIT 0x04
475#define ACPI_NO_HANDLER_INIT 0x08 474#define ACPI_NO_HANDLER_INIT 0x08
476#define ACPI_NO_ACPI_ENABLE 0x10 475#define ACPI_NO_ACPI_ENABLE 0x10
diff --git a/include/acpi/processor.h b/include/acpi/processor.h
index 67055f180330..610f6fb1bbc2 100644
--- a/include/acpi/processor.h
+++ b/include/acpi/processor.h
@@ -329,6 +329,7 @@ extern void acpi_processor_throttling_init(void);
329int acpi_processor_power_init(struct acpi_processor *pr, 329int acpi_processor_power_init(struct acpi_processor *pr,
330 struct acpi_device *device); 330 struct acpi_device *device);
331int acpi_processor_cst_has_changed(struct acpi_processor *pr); 331int acpi_processor_cst_has_changed(struct acpi_processor *pr);
332int acpi_processor_hotplug(struct acpi_processor *pr);
332int acpi_processor_power_exit(struct acpi_processor *pr, 333int acpi_processor_power_exit(struct acpi_processor *pr,
333 struct acpi_device *device); 334 struct acpi_device *device);
334int acpi_processor_suspend(struct acpi_device * device, pm_message_t state); 335int acpi_processor_suspend(struct acpi_device * device, pm_message_t state);
diff --git a/include/linux/cpuidle.h b/include/linux/cpuidle.h
index 583baf22cad2..7408af843b8a 100644
--- a/include/linux/cpuidle.h
+++ b/include/linux/cpuidle.h
@@ -23,57 +23,62 @@
23struct module; 23struct module;
24 24
25struct cpuidle_device; 25struct cpuidle_device;
26struct cpuidle_driver;
26 27
27 28
28/**************************** 29/****************************
29 * CPUIDLE DEVICE INTERFACE * 30 * CPUIDLE DEVICE INTERFACE *
30 ****************************/ 31 ****************************/
31 32
33struct cpuidle_state_usage {
34 void *driver_data;
35
36 unsigned long long usage;
37 unsigned long long time; /* in US */
38};
39
32struct cpuidle_state { 40struct cpuidle_state {
33 char name[CPUIDLE_NAME_LEN]; 41 char name[CPUIDLE_NAME_LEN];
34 char desc[CPUIDLE_DESC_LEN]; 42 char desc[CPUIDLE_DESC_LEN];
35 void *driver_data;
36 43
37 unsigned int flags; 44 unsigned int flags;
38 unsigned int exit_latency; /* in US */ 45 unsigned int exit_latency; /* in US */
39 unsigned int power_usage; /* in mW */ 46 unsigned int power_usage; /* in mW */
40 unsigned int target_residency; /* in US */ 47 unsigned int target_residency; /* in US */
41 48
42 unsigned long long usage;
43 unsigned long long time; /* in US */
44
45 int (*enter) (struct cpuidle_device *dev, 49 int (*enter) (struct cpuidle_device *dev,
46 struct cpuidle_state *state); 50 struct cpuidle_driver *drv,
51 int index);
47}; 52};
48 53
49/* Idle State Flags */ 54/* Idle State Flags */
50#define CPUIDLE_FLAG_TIME_VALID (0x01) /* is residency time measurable? */ 55#define CPUIDLE_FLAG_TIME_VALID (0x01) /* is residency time measurable? */
51#define CPUIDLE_FLAG_IGNORE (0x100) /* ignore during this idle period */
52 56
53#define CPUIDLE_DRIVER_FLAGS_MASK (0xFFFF0000) 57#define CPUIDLE_DRIVER_FLAGS_MASK (0xFFFF0000)
54 58
55/** 59/**
56 * cpuidle_get_statedata - retrieves private driver state data 60 * cpuidle_get_statedata - retrieves private driver state data
57 * @state: the state 61 * @st_usage: the state usage statistics
58 */ 62 */
59static inline void * cpuidle_get_statedata(struct cpuidle_state *state) 63static inline void *cpuidle_get_statedata(struct cpuidle_state_usage *st_usage)
60{ 64{
61 return state->driver_data; 65 return st_usage->driver_data;
62} 66}
63 67
64/** 68/**
65 * cpuidle_set_statedata - stores private driver state data 69 * cpuidle_set_statedata - stores private driver state data
66 * @state: the state 70 * @st_usage: the state usage statistics
67 * @data: the private data 71 * @data: the private data
68 */ 72 */
69static inline void 73static inline void
70cpuidle_set_statedata(struct cpuidle_state *state, void *data) 74cpuidle_set_statedata(struct cpuidle_state_usage *st_usage, void *data)
71{ 75{
72 state->driver_data = data; 76 st_usage->driver_data = data;
73} 77}
74 78
75struct cpuidle_state_kobj { 79struct cpuidle_state_kobj {
76 struct cpuidle_state *state; 80 struct cpuidle_state *state;
81 struct cpuidle_state_usage *state_usage;
77 struct completion kobj_unregister; 82 struct completion kobj_unregister;
78 struct kobject kobj; 83 struct kobject kobj;
79}; 84};
@@ -81,22 +86,17 @@ struct cpuidle_state_kobj {
81struct cpuidle_device { 86struct cpuidle_device {
82 unsigned int registered:1; 87 unsigned int registered:1;
83 unsigned int enabled:1; 88 unsigned int enabled:1;
84 unsigned int power_specified:1;
85 unsigned int cpu; 89 unsigned int cpu;
86 90
87 int last_residency; 91 int last_residency;
88 int state_count; 92 int state_count;
89 struct cpuidle_state states[CPUIDLE_STATE_MAX]; 93 struct cpuidle_state_usage states_usage[CPUIDLE_STATE_MAX];
90 struct cpuidle_state_kobj *kobjs[CPUIDLE_STATE_MAX]; 94 struct cpuidle_state_kobj *kobjs[CPUIDLE_STATE_MAX];
91 struct cpuidle_state *last_state;
92 95
93 struct list_head device_list; 96 struct list_head device_list;
94 struct kobject kobj; 97 struct kobject kobj;
95 struct completion kobj_unregister; 98 struct completion kobj_unregister;
96 void *governor_data; 99 void *governor_data;
97 struct cpuidle_state *safe_state;
98
99 int (*prepare) (struct cpuidle_device *dev);
100}; 100};
101 101
102DECLARE_PER_CPU(struct cpuidle_device *, cpuidle_devices); 102DECLARE_PER_CPU(struct cpuidle_device *, cpuidle_devices);
@@ -120,6 +120,11 @@ static inline int cpuidle_get_last_residency(struct cpuidle_device *dev)
120struct cpuidle_driver { 120struct cpuidle_driver {
121 char name[CPUIDLE_NAME_LEN]; 121 char name[CPUIDLE_NAME_LEN];
122 struct module *owner; 122 struct module *owner;
123
124 unsigned int power_specified:1;
125 struct cpuidle_state states[CPUIDLE_STATE_MAX];
126 int state_count;
127 int safe_state_index;
123}; 128};
124 129
125#ifdef CONFIG_CPU_IDLE 130#ifdef CONFIG_CPU_IDLE
@@ -166,11 +171,14 @@ struct cpuidle_governor {
166 struct list_head governor_list; 171 struct list_head governor_list;
167 unsigned int rating; 172 unsigned int rating;
168 173
169 int (*enable) (struct cpuidle_device *dev); 174 int (*enable) (struct cpuidle_driver *drv,
170 void (*disable) (struct cpuidle_device *dev); 175 struct cpuidle_device *dev);
176 void (*disable) (struct cpuidle_driver *drv,
177 struct cpuidle_device *dev);
171 178
172 int (*select) (struct cpuidle_device *dev); 179 int (*select) (struct cpuidle_driver *drv,
173 void (*reflect) (struct cpuidle_device *dev); 180 struct cpuidle_device *dev);
181 void (*reflect) (struct cpuidle_device *dev, int index);
174 182
175 struct module *owner; 183 struct module *owner;
176}; 184};
diff --git a/tools/power/x86/turbostat/turbostat.c b/tools/power/x86/turbostat/turbostat.c
index 8b2d37b59c9e..3c6f7808efae 100644
--- a/tools/power/x86/turbostat/turbostat.c
+++ b/tools/power/x86/turbostat/turbostat.c
@@ -162,19 +162,21 @@ void print_header(void)
162 162
163void dump_cnt(struct counters *cnt) 163void dump_cnt(struct counters *cnt)
164{ 164{
165 fprintf(stderr, "package: %d ", cnt->pkg); 165 if (!cnt)
166 fprintf(stderr, "core:: %d ", cnt->core); 166 return;
167 fprintf(stderr, "CPU: %d ", cnt->cpu); 167 if (cnt->pkg) fprintf(stderr, "package: %d ", cnt->pkg);
168 fprintf(stderr, "TSC: %016llX\n", cnt->tsc); 168 if (cnt->core) fprintf(stderr, "core:: %d ", cnt->core);
169 fprintf(stderr, "c3: %016llX\n", cnt->c3); 169 if (cnt->cpu) fprintf(stderr, "CPU: %d ", cnt->cpu);
170 fprintf(stderr, "c6: %016llX\n", cnt->c6); 170 if (cnt->tsc) fprintf(stderr, "TSC: %016llX\n", cnt->tsc);
171 fprintf(stderr, "c7: %016llX\n", cnt->c7); 171 if (cnt->c3) fprintf(stderr, "c3: %016llX\n", cnt->c3);
172 fprintf(stderr, "aperf: %016llX\n", cnt->aperf); 172 if (cnt->c6) fprintf(stderr, "c6: %016llX\n", cnt->c6);
173 fprintf(stderr, "pc2: %016llX\n", cnt->pc2); 173 if (cnt->c7) fprintf(stderr, "c7: %016llX\n", cnt->c7);
174 fprintf(stderr, "pc3: %016llX\n", cnt->pc3); 174 if (cnt->aperf) fprintf(stderr, "aperf: %016llX\n", cnt->aperf);
175 fprintf(stderr, "pc6: %016llX\n", cnt->pc6); 175 if (cnt->pc2) fprintf(stderr, "pc2: %016llX\n", cnt->pc2);
176 fprintf(stderr, "pc7: %016llX\n", cnt->pc7); 176 if (cnt->pc3) fprintf(stderr, "pc3: %016llX\n", cnt->pc3);
177 fprintf(stderr, "msr0x%x: %016llX\n", extra_msr_offset, cnt->extra_msr); 177 if (cnt->pc6) fprintf(stderr, "pc6: %016llX\n", cnt->pc6);
178 if (cnt->pc7) fprintf(stderr, "pc7: %016llX\n", cnt->pc7);
179 if (cnt->extra_msr) fprintf(stderr, "msr0x%x: %016llX\n", extra_msr_offset, cnt->extra_msr);
178} 180}
179 181
180void dump_list(struct counters *cnt) 182void dump_list(struct counters *cnt)
generated by cgit v1.2.2 (git 2.25.0) at 2026-01-02 13:52:13 -0500