apfs/linux-apfs
0
0
Fork 0
mirror of https://github.com/linux-apfs/linux-apfs.git synced 2026-05-01 15:00:59 -07:00
Code Issues Packages Projects Releases Wiki Activity

Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux

Browse Source 
Pull ACPI & Power Management changes from Len Brown:
 - ACPI 5.0 after-ripples, ACPICA/Linux divergence cleanup
 - cpuidle evolving, more ARM use
 - thermal sub-system evolving, ditto
 - assorted other PM bits

Fix up conflicts in various cpuidle implementations due to ARM cpuidle
cleanups (ARM at91 self-refresh and cpu idle code rewritten into
"standby" in asm conflicting with the consolidation of cpuidle time
keeping), trivial SH include file context conflict and RCU tracing fixes
in generic code.

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux: (77 commits)
  ACPI throttling: fix endian bug in acpi_read_throttling_status()
  Disable MCP limit exceeded messages from Intel IPS driver
  ACPI video: Don't start video device until its associated input device has been allocated
  ACPI video: Harden video bus adding.
  ACPI: Add support for exposing BGRT data
  ACPI: export acpi_kobj
  ACPI: Fix logic for removing mappings in 'acpi_unmap'
  CPER failed to handle generic error records with multiple sections
  ACPI: Clean redundant codes in scan.c
  ACPI: Fix unprotected smp_processor_id() in acpi_processor_cst_has_changed()
  ACPI: consistently use should_use_kmap()
  PNPACPI: Fix device ref leaking in acpi_pnp_match
  ACPI: Fix use-after-free in acpi_map_lsapic
  ACPI: processor_driver: add missing kfree
  ACPI, APEI: Fix incorrect APEI register bit width check and usage
  Update documentation for parameter *notrigger* in einj.txt
  ACPI, APEI, EINJ, new parameter to control trigger action
  ACPI, APEI, EINJ, limit the range of einj_param
  ACPI, APEI, Fix ERST header length check
  cpuidle: power_usage should be declared signed integer
  ...
This commit is contained in:
Linus Torvalds
2012-03-30 16:45:38 -07:00
parent 10f3cb41d4 d326f44e5f
commit a335750b9a
103 changed files with 3183 additions and 1546 deletions
Download Patch File Download Diff File Expand all files Collapse all files
Documentation/ABI/testing/sysfs-firmware-acpi
+20
View File
@@ -1,3 +1,23 @@
What: /sys/firmware/acpi/bgrt/
Date: January 2012
Contact: Matthew Garrett <mjg@redhat.com>
Description:
The BGRT is an ACPI 5.0 feature that allows the OS
to obtain a copy of the firmware boot splash and
some associated metadata. This is intended to be used
by boot splash applications in order to interact with
the firmware boot splash in order to avoid jarring
transitions.
image: The image bitmap. Currently a 32-bit BMP.
status: 1 if the image is valid, 0 if firmware invalidated it.
type: 0 indicates image is in BMP format.
version: The version of the BGRT. Currently 1.
xoffset: The number of pixels between the left of the screen
and the left edge of the image.
yoffset: The number of pixels between the top of the screen
and the top edge of the image.
What: /sys/firmware/acpi/interrupts/ What: /sys/firmware/acpi/interrupts/
Date: February 2008 Date: February 2008
Contact: Len Brown <lenb@kernel.org> Contact: Len Brown <lenb@kernel.org>
Documentation/acpi/apei/einj.txt
+8
View File
@@ -53,6 +53,14 @@ directory apei/einj. The following files are provided.
This file is used to set the second error parameter value. Effect of This file is used to set the second error parameter value. Effect of
parameter depends on error_type specified. parameter depends on error_type specified.
- notrigger
The EINJ mechanism is a two step process. First inject the error, then
perform some actions to trigger it. Setting "notrigger" to 1 skips the
trigger phase, which *may* allow the user to cause the error in some other
context by a simple access to the cpu, memory location, or device that is
the target of the error injection. Whether this actually works depends
on what operations the BIOS actually includes in the trigger phase.
BIOS versions based in the ACPI 4.0 specification have limited options BIOS versions based in the ACPI 4.0 specification have limited options
to control where the errors are injected. Your BIOS may support an to control where the errors are injected. Your BIOS may support an
extension (enabled with the param_extension=1 module parameter, or extension (enabled with the param_extension=1 module parameter, or
Documentation/cpuidle/sysfs.txt
+5
View File
@@ -36,6 +36,7 @@ drwxr-xr-x 2 root root 0 Feb 8 10:42 state3
/sys/devices/system/cpu/cpu0/cpuidle/state0: /sys/devices/system/cpu/cpu0/cpuidle/state0:
total 0 total 0
-r--r--r-- 1 root root 4096 Feb 8 10:42 desc -r--r--r-- 1 root root 4096 Feb 8 10:42 desc
-rw-r--r-- 1 root root 4096 Feb 8 10:42 disable
-r--r--r-- 1 root root 4096 Feb 8 10:42 latency -r--r--r-- 1 root root 4096 Feb 8 10:42 latency
-r--r--r-- 1 root root 4096 Feb 8 10:42 name -r--r--r-- 1 root root 4096 Feb 8 10:42 name
-r--r--r-- 1 root root 4096 Feb 8 10:42 power -r--r--r-- 1 root root 4096 Feb 8 10:42 power
@@ -45,6 +46,7 @@ total 0
/sys/devices/system/cpu/cpu0/cpuidle/state1: /sys/devices/system/cpu/cpu0/cpuidle/state1:
total 0 total 0
-r--r--r-- 1 root root 4096 Feb 8 10:42 desc -r--r--r-- 1 root root 4096 Feb 8 10:42 desc
-rw-r--r-- 1 root root 4096 Feb 8 10:42 disable
-r--r--r-- 1 root root 4096 Feb 8 10:42 latency -r--r--r-- 1 root root 4096 Feb 8 10:42 latency
-r--r--r-- 1 root root 4096 Feb 8 10:42 name -r--r--r-- 1 root root 4096 Feb 8 10:42 name
-r--r--r-- 1 root root 4096 Feb 8 10:42 power -r--r--r-- 1 root root 4096 Feb 8 10:42 power
@@ -54,6 +56,7 @@ total 0
/sys/devices/system/cpu/cpu0/cpuidle/state2: /sys/devices/system/cpu/cpu0/cpuidle/state2:
total 0 total 0
-r--r--r-- 1 root root 4096 Feb 8 10:42 desc -r--r--r-- 1 root root 4096 Feb 8 10:42 desc
-rw-r--r-- 1 root root 4096 Feb 8 10:42 disable
-r--r--r-- 1 root root 4096 Feb 8 10:42 latency -r--r--r-- 1 root root 4096 Feb 8 10:42 latency
-r--r--r-- 1 root root 4096 Feb 8 10:42 name -r--r--r-- 1 root root 4096 Feb 8 10:42 name
-r--r--r-- 1 root root 4096 Feb 8 10:42 power -r--r--r-- 1 root root 4096 Feb 8 10:42 power
@@ -63,6 +66,7 @@ total 0
/sys/devices/system/cpu/cpu0/cpuidle/state3: /sys/devices/system/cpu/cpu0/cpuidle/state3:
total 0 total 0
-r--r--r-- 1 root root 4096 Feb 8 10:42 desc -r--r--r-- 1 root root 4096 Feb 8 10:42 desc
-rw-r--r-- 1 root root 4096 Feb 8 10:42 disable
-r--r--r-- 1 root root 4096 Feb 8 10:42 latency -r--r--r-- 1 root root 4096 Feb 8 10:42 latency
-r--r--r-- 1 root root 4096 Feb 8 10:42 name -r--r--r-- 1 root root 4096 Feb 8 10:42 name
-r--r--r-- 1 root root 4096 Feb 8 10:42 power -r--r--r-- 1 root root 4096 Feb 8 10:42 power
@@ -72,6 +76,7 @@ total 0
* desc : Small description about the idle state (string) * desc : Small description about the idle state (string)
* disable : Option to disable this idle state (bool)
* latency : Latency to exit out of this idle state (in microseconds) * latency : Latency to exit out of this idle state (in microseconds)
* name : Name of the idle state (string) * name : Name of the idle state (string)
* power : Power consumed while in this idle state (in milliwatts) * power : Power consumed while in this idle state (in milliwatts)
arch/arm/include/asm/cpuidle.h
+29
View File
@@ -0,0 +1,29 @@
#ifndef __ASM_ARM_CPUIDLE_H
#define __ASM_ARM_CPUIDLE_H
#ifdef CONFIG_CPU_IDLE
extern int arm_cpuidle_simple_enter(struct cpuidle_device *dev,
struct cpuidle_driver *drv, int index);
#else
static inline int arm_cpuidle_simple_enter(struct cpuidle_device *dev,
struct cpuidle_driver *drv, int index) { return -ENODEV; }
#endif
/* Common ARM WFI state */
#define ARM_CPUIDLE_WFI_STATE_PWR(p) {\
.enter = arm_cpuidle_simple_enter,\
.exit_latency = 1,\
.target_residency = 1,\
.power_usage = p,\
.flags = CPUIDLE_FLAG_TIME_VALID,\
.name = "WFI",\
.desc = "ARM WFI",\
}
/*
* in case power_specified == 1, give a default WFI power value needed
* by some governors
*/
#define ARM_CPUIDLE_WFI_STATE ARM_CPUIDLE_WFI_STATE_PWR(UINT_MAX)
#endif
arch/arm/kernel/Makefile
+1 -1
View File
@@ -23,7 +23,7 @@ obj-$(CONFIG_DEPRECATED_PARAM_STRUCT) += compat.o
obj-$(CONFIG_LEDS) += leds.o obj-$(CONFIG_LEDS) += leds.o
obj-$(CONFIG_OC_ETM) += etm.o obj-$(CONFIG_OC_ETM) += etm.o
obj-$(CONFIG_CPU_IDLE) += cpuidle.o
obj-$(CONFIG_ISA_DMA_API) += dma.o obj-$(CONFIG_ISA_DMA_API) += dma.o
obj-$(CONFIG_FIQ) += fiq.o fiqasm.o obj-$(CONFIG_FIQ) += fiq.o fiqasm.o
obj-$(CONFIG_MODULES) += armksyms.o module.o obj-$(CONFIG_MODULES) += armksyms.o module.o
arch/arm/kernel/cpuidle.c
+21
View File
@@ -0,0 +1,21 @@
/*
* Copyright 2012 Linaro Ltd.
*
* The code contained herein is licensed under the GNU General Public
* License. You may obtain a copy of the GNU General Public License
* Version 2 or later at the following locations:
*
* http://www.opensource.org/licenses/gpl-license.html
* http://www.gnu.org/copyleft/gpl.html
*/
#include <linux/cpuidle.h>
#include <asm/proc-fns.h>
int arm_cpuidle_simple_enter(struct cpuidle_device *dev,
struct cpuidle_driver *drv, int index)
{
cpu_do_idle();
return index;
}
arch/arm/mach-at91/cpuidle.c
+19 -40
View File
@@ -17,9 +17,10 @@
#include <linux/init.h> #include <linux/init.h>
#include <linux/platform_device.h> #include <linux/platform_device.h>
#include <linux/cpuidle.h> #include <linux/cpuidle.h>
#include <asm/proc-fns.h>
#include <linux/io.h> #include <linux/io.h>
#include <linux/export.h> #include <linux/export.h>
#include <asm/proc-fns.h>
#include <asm/cpuidle.h>
#include "pm.h" #include "pm.h"
@@ -27,61 +28,39 @@
static DEFINE_PER_CPU(struct cpuidle_device, at91_cpuidle_device); static DEFINE_PER_CPU(struct cpuidle_device, at91_cpuidle_device);
static struct cpuidle_driver at91_idle_driver = {
.name = "at91_idle",
.owner = THIS_MODULE,
};
/* Actual code that puts the SoC in different idle states */ /* Actual code that puts the SoC in different idle states */
static int at91_enter_idle(struct cpuidle_device *dev, static int at91_enter_idle(struct cpuidle_device *dev,
struct cpuidle_driver *drv, struct cpuidle_driver *drv,
int index) int index)
{ {
struct timeval before, after; at91_standby();
int idle_time;
local_irq_disable();
do_gettimeofday(&before);
if (index == 0)
/* Wait for interrupt state */
cpu_do_idle();
else if (index == 1)
at91_standby();
do_gettimeofday(&after);
local_irq_enable();
idle_time = (after.tv_sec - before.tv_sec) * USEC_PER_SEC +
(after.tv_usec - before.tv_usec);
dev->last_residency = idle_time;
return index; return index;
} }
static struct cpuidle_driver at91_idle_driver = {
.name = "at91_idle",
.owner = THIS_MODULE,
.en_core_tk_irqen = 1,
.states[0] = ARM_CPUIDLE_WFI_STATE,
.states[1] = {
.enter = at91_enter_idle,
.exit_latency = 10,
.target_residency = 100000,
.flags = CPUIDLE_FLAG_TIME_VALID,
.name = "RAM_SR",
.desc = "WFI and DDR Self Refresh",
},
.state_count = AT91_MAX_STATES,
};
/* Initialize CPU idle by registering the idle states */ /* Initialize CPU idle by registering the idle states */
static int at91_init_cpuidle(void) static int at91_init_cpuidle(void)
{ {
struct cpuidle_device *device; struct cpuidle_device *device;
struct cpuidle_driver *driver = &at91_idle_driver;
device = &per_cpu(at91_cpuidle_device, smp_processor_id()); device = &per_cpu(at91_cpuidle_device, smp_processor_id());
device->state_count = AT91_MAX_STATES; device->state_count = AT91_MAX_STATES;
driver->state_count = AT91_MAX_STATES;
/* Wait for interrupt state */
driver->states[0].enter = at91_enter_idle;
driver->states[0].exit_latency = 1;
driver->states[0].target_residency = 10000;
driver->states[0].flags = CPUIDLE_FLAG_TIME_VALID;
strcpy(driver->states[0].name, "WFI");
strcpy(driver->states[0].desc, "Wait for interrupt");
/* Wait for interrupt and RAM self refresh state */
driver->states[1].enter = at91_enter_idle;
driver->states[1].exit_latency = 10;
driver->states[1].target_residency = 10000;
driver->states[1].flags = CPUIDLE_FLAG_TIME_VALID;
strcpy(driver->states[1].name, "RAM_SR");
strcpy(driver->states[1].desc, "WFI and RAM Self Refresh");
cpuidle_register_driver(&at91_idle_driver); cpuidle_register_driver(&at91_idle_driver);
arch/arm/mach-davinci/cpuidle.c
+34 -49
View File
@@ -18,6 +18,7 @@
#include <linux/io.h> #include <linux/io.h>
#include <linux/export.h> #include <linux/export.h>
#include <asm/proc-fns.h> #include <asm/proc-fns.h>
#include <asm/cpuidle.h>
#include <mach/cpuidle.h> #include <mach/cpuidle.h>
#include <mach/ddr2.h> #include <mach/ddr2.h>
@@ -30,12 +31,43 @@ struct davinci_ops {
u32 flags; u32 flags;
}; };
/* Actual code that puts the SoC in different idle states */
static int davinci_enter_idle(struct cpuidle_device *dev,
struct cpuidle_driver *drv,
int index)
{
struct cpuidle_state_usage *state_usage = &dev->states_usage[index];
struct davinci_ops *ops = cpuidle_get_statedata(state_usage);
if (ops && ops->enter)
ops->enter(ops->flags);
index = cpuidle_wrap_enter(dev, drv, index,
arm_cpuidle_simple_enter);
if (ops && ops->exit)
ops->exit(ops->flags);
return index;
}
/* fields in davinci_ops.flags */ /* fields in davinci_ops.flags */
#define DAVINCI_CPUIDLE_FLAGS_DDR2_PWDN BIT(0) #define DAVINCI_CPUIDLE_FLAGS_DDR2_PWDN BIT(0)
static struct cpuidle_driver davinci_idle_driver = { static struct cpuidle_driver davinci_idle_driver = {
.name = "cpuidle-davinci", .name = "cpuidle-davinci",
.owner = THIS_MODULE, .owner = THIS_MODULE,
.en_core_tk_irqen = 1,
.states[0] = ARM_CPUIDLE_WFI_STATE,
.states[1] = {
.enter = davinci_enter_idle,
.exit_latency = 10,
.target_residency = 100000,
.flags = CPUIDLE_FLAG_TIME_VALID,
.name = "DDR SR",
.desc = "WFI and DDR Self Refresh",
},
.state_count = DAVINCI_CPUIDLE_MAX_STATES,
}; };
static DEFINE_PER_CPU(struct cpuidle_device, davinci_cpuidle_device); static DEFINE_PER_CPU(struct cpuidle_device, davinci_cpuidle_device);
@@ -77,41 +109,10 @@ static struct davinci_ops davinci_states[DAVINCI_CPUIDLE_MAX_STATES] = {
}, },
}; };
/* Actual code that puts the SoC in different idle states */
static int davinci_enter_idle(struct cpuidle_device *dev,
struct cpuidle_driver *drv,
int index)
{
struct cpuidle_state_usage *state_usage = &dev->states_usage[index];
struct davinci_ops *ops = cpuidle_get_statedata(state_usage);
struct timeval before, after;
int idle_time;
local_irq_disable();
do_gettimeofday(&before);
if (ops && ops->enter)
ops->enter(ops->flags);
/* Wait for interrupt state */
cpu_do_idle();
if (ops && ops->exit)
ops->exit(ops->flags);
do_gettimeofday(&after);
local_irq_enable();
idle_time = (after.tv_sec - before.tv_sec) * USEC_PER_SEC +
(after.tv_usec - before.tv_usec);
dev->last_residency = idle_time;
return index;
}
static int __init davinci_cpuidle_probe(struct platform_device *pdev) static int __init davinci_cpuidle_probe(struct platform_device *pdev)
{ {
int ret; int ret;
struct cpuidle_device *device; struct cpuidle_device *device;
struct cpuidle_driver *driver = &davinci_idle_driver;
struct davinci_cpuidle_config *pdata = pdev->dev.platform_data; struct davinci_cpuidle_config *pdata = pdev->dev.platform_data;
device = &per_cpu(davinci_cpuidle_device, smp_processor_id()); device = &per_cpu(davinci_cpuidle_device, smp_processor_id());
@@ -123,27 +124,11 @@ static int __init davinci_cpuidle_probe(struct platform_device *pdev)
ddr2_reg_base = pdata->ddr2_ctlr_base; ddr2_reg_base = pdata->ddr2_ctlr_base;
/* Wait for interrupt state */
driver->states[0].enter = davinci_enter_idle;
driver->states[0].exit_latency = 1;
driver->states[0].target_residency = 10000;
driver->states[0].flags = CPUIDLE_FLAG_TIME_VALID;
strcpy(driver->states[0].name, "WFI");
strcpy(driver->states[0].desc, "Wait for interrupt");
/* Wait for interrupt and DDR self refresh state */
driver->states[1].enter = davinci_enter_idle;
driver->states[1].exit_latency = 10;
driver->states[1].target_residency = 10000;
driver->states[1].flags = CPUIDLE_FLAG_TIME_VALID;
strcpy(driver->states[1].name, "DDR SR");
strcpy(driver->states[1].desc, "WFI and DDR Self Refresh");
if (pdata->ddr2_pdown) if (pdata->ddr2_pdown)
davinci_states[1].flags |= DAVINCI_CPUIDLE_FLAGS_DDR2_PWDN; davinci_states[1].flags |= DAVINCI_CPUIDLE_FLAGS_DDR2_PWDN;
cpuidle_set_statedata(&device->states_usage[1], &davinci_states[1]); cpuidle_set_statedata(&device->states_usage[1], &davinci_states[1]);
device->state_count = DAVINCI_CPUIDLE_MAX_STATES; device->state_count = DAVINCI_CPUIDLE_MAX_STATES;
driver->state_count = DAVINCI_CPUIDLE_MAX_STATES;
ret = cpuidle_register_driver(&davinci_idle_driver); ret = cpuidle_register_driver(&davinci_idle_driver);
if (ret) { if (ret) {
arch/arm/mach-kirkwood/cpuidle.c
+21 -51
View File
@@ -20,77 +20,47 @@
#include <linux/io.h> #include <linux/io.h>
#include <linux/export.h> #include <linux/export.h>
#include <asm/proc-fns.h> #include <asm/proc-fns.h>
#include <asm/cpuidle.h>
#include <mach/kirkwood.h> #include <mach/kirkwood.h>
#define KIRKWOOD_MAX_STATES 2 #define KIRKWOOD_MAX_STATES 2
static struct cpuidle_driver kirkwood_idle_driver = {
.name = "kirkwood_idle",
.owner = THIS_MODULE,
};
static DEFINE_PER_CPU(struct cpuidle_device, kirkwood_cpuidle_device);
/* Actual code that puts the SoC in different idle states */ /* Actual code that puts the SoC in different idle states */
static int kirkwood_enter_idle(struct cpuidle_device *dev, static int kirkwood_enter_idle(struct cpuidle_device *dev,
struct cpuidle_driver *drv, struct cpuidle_driver *drv,
int index) int index)
{ {
struct timeval before, after; writel(0x7, DDR_OPERATION_BASE);
int idle_time; cpu_do_idle();
local_irq_disable();
do_gettimeofday(&before);
if (index == 0)
/* Wait for interrupt state */
cpu_do_idle();
else if (index == 1) {
/*
* Following write will put DDR in self refresh.
* Note that we have 256 cycles before DDR puts it
* self in self-refresh, so the wait-for-interrupt
* call afterwards won't get the DDR from self refresh
* mode.
*/
writel(0x7, DDR_OPERATION_BASE);
cpu_do_idle();
}
do_gettimeofday(&after);
local_irq_enable();
idle_time = (after.tv_sec - before.tv_sec) * USEC_PER_SEC +
(after.tv_usec - before.tv_usec);
/* Update last residency */
dev->last_residency = idle_time;
return index; return index;
} }
static struct cpuidle_driver kirkwood_idle_driver = {
.name = "kirkwood_idle",
.owner = THIS_MODULE,
.en_core_tk_irqen = 1,
.states[0] = ARM_CPUIDLE_WFI_STATE,
.states[1] = {
.enter = kirkwood_enter_idle,
.exit_latency = 10,
.target_residency = 100000,
.flags = CPUIDLE_FLAG_TIME_VALID,
.name = "DDR SR",
.desc = "WFI and DDR Self Refresh",
},
.state_count = KIRKWOOD_MAX_STATES,
};
static DEFINE_PER_CPU(struct cpuidle_device, kirkwood_cpuidle_device);
/* Initialize CPU idle by registering the idle states */ /* Initialize CPU idle by registering the idle states */
static int kirkwood_init_cpuidle(void) static int kirkwood_init_cpuidle(void)
{ {
struct cpuidle_device *device; struct cpuidle_device *device;
struct cpuidle_driver *driver = &kirkwood_idle_driver;
device = &per_cpu(kirkwood_cpuidle_device, smp_processor_id()); device = &per_cpu(kirkwood_cpuidle_device, smp_processor_id());
device->state_count = KIRKWOOD_MAX_STATES; device->state_count = KIRKWOOD_MAX_STATES;
driver->state_count = KIRKWOOD_MAX_STATES;
/* Wait for interrupt state */
driver->states[0].enter = kirkwood_enter_idle;
driver->states[0].exit_latency = 1;
driver->states[0].target_residency = 10000;
driver->states[0].flags = CPUIDLE_FLAG_TIME_VALID;
strcpy(driver->states[0].name, "WFI");
strcpy(driver->states[0].desc, "Wait for interrupt");
/* Wait for interrupt and DDR self refresh state */
driver->states[1].enter = kirkwood_enter_idle;
driver->states[1].exit_latency = 10;
driver->states[1].target_residency = 10000;
driver->states[1].flags = CPUIDLE_FLAG_TIME_VALID;
strcpy(driver->states[1].name, "DDR SR");
strcpy(driver->states[1].desc, "WFI and DDR Self Refresh");
cpuidle_register_driver(&kirkwood_idle_driver); cpuidle_register_driver(&kirkwood_idle_driver);
if (cpuidle_register_device(device)) { if (cpuidle_register_device(device)) {
arch/arm/mach-omap2/cpuidle34xx.c
+17 -25
View File
@@ -87,29 +87,14 @@ static int _cpuidle_deny_idle(struct powerdomain *pwrdm,
return 0; return 0;
} }
/** static int __omap3_enter_idle(struct cpuidle_device *dev,
* omap3_enter_idle - Programs OMAP3 to enter the specified state
* @dev: cpuidle device
* @drv: cpuidle driver
* @index: the index of state to be entered
*
* Called from the CPUidle framework to program the device to the
* specified target state selected by the governor.
*/
static int omap3_enter_idle(struct cpuidle_device *dev,
struct cpuidle_driver *drv, struct cpuidle_driver *drv,
int index) int index)
{ {
struct omap3_idle_statedata *cx = struct omap3_idle_statedata *cx =
cpuidle_get_statedata(&dev->states_usage[index]); cpuidle_get_statedata(&dev->states_usage[index]);
struct timespec ts_preidle, ts_postidle, ts_idle;
u32 mpu_state = cx->mpu_state, core_state = cx->core_state; u32 mpu_state = cx->mpu_state, core_state = cx->core_state;
int idle_time;
/* Used to keep track of the total time in idle */
getnstimeofday(&ts_preidle);
local_irq_disable();
local_fiq_disable(); local_fiq_disable();
pwrdm_set_next_pwrst(mpu_pd, mpu_state); pwrdm_set_next_pwrst(mpu_pd, mpu_state);
@@ -148,21 +133,28 @@ static int omap3_enter_idle(struct cpuidle_device *dev,
} }
return_sleep_time: return_sleep_time:
getnstimeofday(&ts_postidle);
ts_idle = timespec_sub(ts_postidle, ts_preidle);
local_irq_enable();
local_fiq_enable(); local_fiq_enable();
idle_time = ts_idle.tv_nsec / NSEC_PER_USEC + ts_idle.tv_sec * \
USEC_PER_SEC;
/* Update cpuidle counters */
dev->last_residency = idle_time;
return index; return index;
} }
/**
* omap3_enter_idle - Programs OMAP3 to enter the specified state
* @dev: cpuidle device
* @drv: cpuidle driver
* @index: the index of state to be entered
*
* Called from the CPUidle framework to program the device to the
* specified target state selected by the governor.
*/
static inline int omap3_enter_idle(struct cpuidle_device *dev,
struct cpuidle_driver *drv,
int index)
{
return cpuidle_wrap_enter(dev, drv, index, __omap3_enter_idle);
}
/** /**
* next_valid_state - Find next valid C-state * next_valid_state - Find next valid C-state
* @dev: cpuidle device * @dev: cpuidle device
arch/arm/mach-omap2/cpuidle44xx.c
+3 -18
View File
@@ -62,15 +62,9 @@ static int omap4_enter_idle(struct cpuidle_device *dev,
{ {
struct omap4_idle_statedata *cx = struct omap4_idle_statedata *cx =
cpuidle_get_statedata(&dev->states_usage[index]); cpuidle_get_statedata(&dev->states_usage[index]);
struct timespec ts_preidle, ts_postidle, ts_idle;
u32 cpu1_state; u32 cpu1_state;
int idle_time;
int cpu_id = smp_processor_id(); int cpu_id = smp_processor_id();
/* Used to keep track of the total time in idle */
getnstimeofday(&ts_preidle);
local_irq_disable();
local_fiq_disable(); local_fiq_disable();
/* /*
@@ -128,26 +122,17 @@ static int omap4_enter_idle(struct cpuidle_device *dev,
if (index > 0) if (index > 0)
clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_EXIT, &cpu_id); clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_EXIT, &cpu_id);
getnstimeofday(&ts_postidle);
ts_idle = timespec_sub(ts_postidle, ts_preidle);
local_irq_enable();
local_fiq_enable(); local_fiq_enable();
idle_time = ts_idle.tv_nsec / NSEC_PER_USEC + ts_idle.tv_sec * \
USEC_PER_SEC;
/* Update cpuidle counters */
dev->last_residency = idle_time;
return index; return index;
} }
DEFINE_PER_CPU(struct cpuidle_device, omap4_idle_dev); DEFINE_PER_CPU(struct cpuidle_device, omap4_idle_dev);
struct cpuidle_driver omap4_idle_driver = { struct cpuidle_driver omap4_idle_driver = {
.name = "omap4_idle", .name = "omap4_idle",
.owner = THIS_MODULE, .owner = THIS_MODULE,
.en_core_tk_irqen = 1,
}; };
static inline void _fill_cstate(struct cpuidle_driver *drv, static inline void _fill_cstate(struct cpuidle_driver *drv,
arch/arm/mach-shmobile/cpuidle.c
+7 -24
View File
@@ -13,6 +13,7 @@
#include <linux/suspend.h> #include <linux/suspend.h>
#include <linux/module.h> #include <linux/module.h>
#include <linux/err.h> #include <linux/err.h>
#include <asm/cpuidle.h>
#include <asm/io.h> #include <asm/io.h>
static void shmobile_enter_wfi(void) static void shmobile_enter_wfi(void)
@@ -28,37 +29,19 @@ static int shmobile_cpuidle_enter(struct cpuidle_device *dev,
struct cpuidle_driver *drv, struct cpuidle_driver *drv,
int index) int index)
{ {
ktime_t before, after;
before = ktime_get();
local_irq_disable();
local_fiq_disable();
shmobile_cpuidle_modes[index](); shmobile_cpuidle_modes[index]();
local_irq_enable();
local_fiq_enable();
after = ktime_get();
dev->last_residency = ktime_to_ns(ktime_sub(after, before)) >> 10;
return index; return index;
} }
static struct cpuidle_device shmobile_cpuidle_dev; static struct cpuidle_device shmobile_cpuidle_dev;
static struct cpuidle_driver shmobile_cpuidle_driver = { static struct cpuidle_driver shmobile_cpuidle_driver = {
.name = "shmobile_cpuidle", .name = "shmobile_cpuidle",
.owner = THIS_MODULE, .owner = THIS_MODULE,
.states[0] = { .en_core_tk_irqen = 1,
.name = "C1", .states[0] = ARM_CPUIDLE_WFI_STATE,
.desc = "WFI", .safe_state_index = 0, /* C1 */
.exit_latency = 1, .state_count = 1,
.target_residency = 1 * 2,
.flags = CPUIDLE_FLAG_TIME_VALID,
},
.safe_state_index = 0, /* C1 */
.state_count = 1,
}; };
void (*shmobile_cpuidle_setup)(struct cpuidle_driver *drv); void (*shmobile_cpuidle_setup)(struct cpuidle_driver *drv);
arch/sh/kernel/cpu/shmobile/cpuidle.c
+3 -7
View File
@@ -29,7 +29,6 @@ static int cpuidle_sleep_enter(struct cpuidle_device *dev,
int index) int index)
{ {
unsigned long allowed_mode = SUSP_SH_SLEEP; unsigned long allowed_mode = SUSP_SH_SLEEP;
ktime_t before, after;
int requested_state = index; int requested_state = index;
int allowed_state; int allowed_state;
int k; int k;
@@ -47,19 +46,16 @@ static int cpuidle_sleep_enter(struct cpuidle_device *dev,
*/ */
k = min_t(int, allowed_state, requested_state); k = min_t(int, allowed_state, requested_state);
before = ktime_get();
sh_mobile_call_standby(cpuidle_mode[k]); sh_mobile_call_standby(cpuidle_mode[k]);
after = ktime_get();
dev->last_residency = (int)ktime_to_ns(ktime_sub(after, before)) >> 10;
return k; return k;
} }
static struct cpuidle_device cpuidle_dev; static struct cpuidle_device cpuidle_dev;
static struct cpuidle_driver cpuidle_driver = { static struct cpuidle_driver cpuidle_driver = {
.name = "sh_idle", .name = "sh_idle",
.owner = THIS_MODULE, .owner = THIS_MODULE,
.en_core_tk_irqen = 1,
}; };
void sh_mobile_setup_cpuidle(void) void sh_mobile_setup_cpuidle(void)
arch/x86/kernel/acpi/boot.c
+2 -1
View File
@@ -642,6 +642,7 @@ static int __cpuinit _acpi_map_lsapic(acpi_handle handle, int *pcpu)
kfree(buffer.pointer); kfree(buffer.pointer);
buffer.length = ACPI_ALLOCATE_BUFFER; buffer.length = ACPI_ALLOCATE_BUFFER;
buffer.pointer = NULL; buffer.pointer = NULL;
lapic = NULL;
if (!alloc_cpumask_var(&tmp_map, GFP_KERNEL)) if (!alloc_cpumask_var(&tmp_map, GFP_KERNEL))
goto out; goto out;
@@ -650,7 +651,7 @@ static int __cpuinit _acpi_map_lsapic(acpi_handle handle, int *pcpu)
goto free_tmp_map; goto free_tmp_map;
cpumask_copy(tmp_map, cpu_present_mask); cpumask_copy(tmp_map, cpu_present_mask);
acpi_register_lapic(physid, lapic->lapic_flags & ACPI_MADT_ENABLED); acpi_register_lapic(physid, ACPI_MADT_ENABLED);
/* /*
* If mp_register_lapic successfully generates a new logical cpu * If mp_register_lapic successfully generates a new logical cpu
arch/x86/kernel/smpboot.c
+3 -1
View File
@@ -50,6 +50,7 @@
#include <linux/tboot.h> #include <linux/tboot.h>
#include <linux/stackprotector.h> #include <linux/stackprotector.h>
#include <linux/gfp.h> #include <linux/gfp.h>
#include <linux/cpuidle.h>
#include <asm/acpi.h> #include <asm/acpi.h>
#include <asm/desc.h> #include <asm/desc.h>
@@ -1404,7 +1405,8 @@ void native_play_dead(void)
tboot_shutdown(TB_SHUTDOWN_WFS); tboot_shutdown(TB_SHUTDOWN_WFS);
mwait_play_dead(); /* Only returns on failure */ mwait_play_dead(); /* Only returns on failure */
hlt_play_dead(); if (cpuidle_play_dead())
hlt_play_dead();
} }
#else /* ... !CONFIG_HOTPLUG_CPU */ #else /* ... !CONFIG_HOTPLUG_CPU */
arch/x86/kernel/tboot.c
+6 -3
View File
@@ -272,7 +272,7 @@ static void tboot_copy_fadt(const struct acpi_table_fadt *fadt)
offsetof(struct acpi_table_facs, firmware_waking_vector); offsetof(struct acpi_table_facs, firmware_waking_vector);
} }
void tboot_sleep(u8 sleep_state, u32 pm1a_control, u32 pm1b_control) static int tboot_sleep(u8 sleep_state, u32 pm1a_control, u32 pm1b_control)
{ {
static u32 acpi_shutdown_map[ACPI_S_STATE_COUNT] = { static u32 acpi_shutdown_map[ACPI_S_STATE_COUNT] = {
/* S0,1,2: */ -1, -1, -1, /* S0,1,2: */ -1, -1, -1,
@@ -281,7 +281,7 @@ void tboot_sleep(u8 sleep_state, u32 pm1a_control, u32 pm1b_control)
/* S5: */ TB_SHUTDOWN_S5 }; /* S5: */ TB_SHUTDOWN_S5 };
if (!tboot_enabled()) if (!tboot_enabled())
return; return 0;
tboot_copy_fadt(&acpi_gbl_FADT); tboot_copy_fadt(&acpi_gbl_FADT);
tboot->acpi_sinfo.pm1a_cnt_val = pm1a_control; tboot->acpi_sinfo.pm1a_cnt_val = pm1a_control;
@@ -292,10 +292,11 @@ void tboot_sleep(u8 sleep_state, u32 pm1a_control, u32 pm1b_control)
if (sleep_state >= ACPI_S_STATE_COUNT || if (sleep_state >= ACPI_S_STATE_COUNT ||
acpi_shutdown_map[sleep_state] == -1) { acpi_shutdown_map[sleep_state] == -1) {
pr_warning("unsupported sleep state 0x%x\n", sleep_state); pr_warning("unsupported sleep state 0x%x\n", sleep_state);
return; return -1;
} }
tboot_shutdown(acpi_shutdown_map[sleep_state]); tboot_shutdown(acpi_shutdown_map[sleep_state]);
return 0;
} }
static atomic_t ap_wfs_count; static atomic_t ap_wfs_count;
@@ -345,6 +346,8 @@ static __init int tboot_late_init(void)
atomic_set(&ap_wfs_count, 0); atomic_set(&ap_wfs_count, 0);
register_hotcpu_notifier(&tboot_cpu_notifier); register_hotcpu_notifier(&tboot_cpu_notifier);
acpi_os_set_prepare_sleep(&tboot_sleep);
return 0; return 0;
} }
drivers/acpi/Kconfig
+9
View File
@@ -384,6 +384,15 @@ config ACPI_CUSTOM_METHOD
load additional kernel modules after boot, this feature may be used load additional kernel modules after boot, this feature may be used
to override that restriction). to override that restriction).
config ACPI_BGRT
tristate "Boottime Graphics Resource Table support"
default n
help
This driver adds support for exposing the ACPI Boottime Graphics
Resource Table, which allows the operating system to obtain
data from the firmware boot splash. It will appear under
/sys/firmware/acpi/bgrt/ .
source "drivers/acpi/apei/Kconfig" source "drivers/acpi/apei/Kconfig"
endif # ACPI endif # ACPI
drivers/acpi/Makefile
+1
View File
@@ -62,6 +62,7 @@ obj-$(CONFIG_ACPI_SBS) += sbs.o
obj-$(CONFIG_ACPI_HED) += hed.o obj-$(CONFIG_ACPI_HED) += hed.o
obj-$(CONFIG_ACPI_EC_DEBUGFS) += ec_sys.o obj-$(CONFIG_ACPI_EC_DEBUGFS) += ec_sys.o
obj-$(CONFIG_ACPI_CUSTOM_METHOD)+= custom_method.o obj-$(CONFIG_ACPI_CUSTOM_METHOD)+= custom_method.o
obj-$(CONFIG_ACPI_BGRT) += bgrt.o
# processor has its own "processor." module_param namespace # processor has its own "processor." module_param namespace
processor-y := processor_driver.o processor_throttling.o processor-y := processor_driver.o processor_throttling.o
drivers/acpi/acpica/Makefile
+3 -1
View File
@@ -68,12 +68,14 @@ acpi-y += \
acpi-y += \ acpi-y += \
hwacpi.o \ hwacpi.o \
hwesleep.o \
hwgpe.o \ hwgpe.o \
hwpci.o \ hwpci.o \
hwregs.o \ hwregs.o \
hwsleep.o \ hwsleep.o \
hwvalid.o \ hwvalid.o \
hwxface.o hwxface.o \
hwxfsleep.o
acpi-$(ACPI_FUTURE_USAGE) += hwtimer.o acpi-$(ACPI_FUTURE_USAGE) += hwtimer.o
drivers/acpi/acpica/accommon.h
-1
View File
@@ -51,7 +51,6 @@
* *
* Note: The order of these include files is important. * Note: The order of these include files is important.
*/ */
#include "acconfig.h" /* Global configuration constants */
#include "acmacros.h" /* C macros */ #include "acmacros.h" /* C macros */
#include "aclocal.h" /* Internal data types */ #include "aclocal.h" /* Internal data types */
#include "acobject.h" /* ACPI internal object */ #include "acobject.h" /* ACPI internal object */

Some files were not shown because too many files have changed in this diff Show More