---

yaml
---
r: 298054
b: refs/heads/master
c: 7ed28f2
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 1a05e4678724c4a5fe7b9e4e208b616dfe8c3a32
+refs/heads/master: 7ed28f2ed43ece424ff2fa4dedac7928bb37a23a

trunk/Documentation/ABI/testing/sysfs-firmware-acpi

@@ -1,23 +1,3 @@
-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/
 Date:		February 2008
 Contact:	Len Brown <lenb@kernel.org>

trunk/Documentation/cpuidle/sysfs.txt

@@ -36,7 +36,6 @@ drwxr-xr-x 2 root root 0 Feb  8 10:42 state3
 /sys/devices/system/cpu/cpu0/cpuidle/state0:
 total 0
 -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 name
 -r--r--r-- 1 root root 4096 Feb  8 10:42 power
@@ -46,7 +45,6 @@ total 0
 /sys/devices/system/cpu/cpu0/cpuidle/state1:
 total 0
 -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 name
 -r--r--r-- 1 root root 4096 Feb  8 10:42 power
@@ -56,7 +54,6 @@ total 0
 /sys/devices/system/cpu/cpu0/cpuidle/state2:
 total 0
 -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 name
 -r--r--r-- 1 root root 4096 Feb  8 10:42 power
@@ -66,7 +63,6 @@ total 0
 /sys/devices/system/cpu/cpu0/cpuidle/state3:
 total 0
 -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 name
 -r--r--r-- 1 root root 4096 Feb  8 10:42 power
@@ -76,7 +72,6 @@ total 0
 
 
 * 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)
 * name : Name of the idle state (string)
 * power : Power consumed while in this idle state (in milliwatts)

trunk/arch/arm/kernel/Makefile

@@ -21,7 +21,7 @@ obj-$(CONFIG_DEPRECATED_PARAM_STRUCT) += compat.o
 
 obj-$(CONFIG_LEDS)		+= leds.o
 obj-$(CONFIG_OC_ETM)		+= etm.o
-obj-$(CONFIG_CPU_IDLE)		+= cpuidle.o
+
 obj-$(CONFIG_ISA_DMA_API)	+= dma.o
 obj-$(CONFIG_ARCH_ACORN)	+= ecard.o 
 obj-$(CONFIG_FIQ)		+= fiq.o fiqasm.o

trunk/arch/arm/mach-at91/cpuidle.c

@@ -17,57 +17,76 @@
 #include <linux/init.h>
 #include <linux/platform_device.h>
 #include <linux/cpuidle.h>
+#include <asm/proc-fns.h>
 #include <linux/io.h>
 #include <linux/export.h>
-#include <asm/proc-fns.h>
-#include <asm/cpuidle.h>
 
 #include "pm.h"
 
 #define AT91_MAX_STATES	2
 
 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 */
 static int at91_enter_idle(struct cpuidle_device *dev,
 			struct cpuidle_driver *drv,
 			       int index)
 {
+	struct timeval before, after;
+	int idle_time;
 	u32 saved_lpr;
 
-	__asm__("b 1f; .align 5; 1:\n"
-	"	mcr p15, 0, r0, c7, c10, 4");	/* drain write buffer */
-
-	saved_lpr = sdram_selfrefresh_enable();
-	cpu_do_idle();
-	sdram_selfrefresh_disable(saved_lpr);
+	local_irq_disable();
+	do_gettimeofday(&before);
+	if (index == 0)
+		/* Wait for interrupt state */
+		cpu_do_idle();
+	else if (index == 1) {
+		asm("b 1f; .align 5; 1:");
+		asm("mcr p15, 0, r0, c7, c10, 4");	/* drain write buffer */
+		saved_lpr = sdram_selfrefresh_enable();
+		cpu_do_idle();
+		sdram_selfrefresh_disable(saved_lpr);
+	}
+	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 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 */
 static int at91_init_cpuidle(void)
 {
 	struct cpuidle_device *device;
+	struct cpuidle_driver *driver = &at91_idle_driver;
 
 	device = &per_cpu(at91_cpuidle_device, smp_processor_id());
 	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);
 

trunk/arch/arm/mach-davinci/cpuidle.c

@@ -18,7 +18,6 @@
 #include <linux/io.h>
 #include <linux/export.h>
 #include <asm/proc-fns.h>
-#include <asm/cpuidle.h>
 
 #include <mach/cpuidle.h>
 #include <mach/ddr2.h>
@@ -31,43 +30,12 @@ struct davinci_ops {
 	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 */
 #define DAVINCI_CPUIDLE_FLAGS_DDR2_PWDN	BIT(0)
 
 static struct cpuidle_driver davinci_idle_driver = {
-	.name			= "cpuidle-davinci",
-	.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,
+	.name	= "cpuidle-davinci",
+	.owner	= THIS_MODULE,
 };
 
 static DEFINE_PER_CPU(struct cpuidle_device, davinci_cpuidle_device);
@@ -109,10 +77,41 @@ 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)
 {
 	int ret;
 	struct cpuidle_device *device;
+	struct cpuidle_driver *driver = &davinci_idle_driver;
 	struct davinci_cpuidle_config *pdata = pdev->dev.platform_data;
 
 	device = &per_cpu(davinci_cpuidle_device, smp_processor_id());
@@ -124,11 +123,27 @@ static int __init davinci_cpuidle_probe(struct platform_device *pdev)
 
 	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)
 		davinci_states[1].flags |= DAVINCI_CPUIDLE_FLAGS_DDR2_PWDN;
 	cpuidle_set_statedata(&device->states_usage[1], &davinci_states[1]);
 
 	device->state_count = DAVINCI_CPUIDLE_MAX_STATES;
+	driver->state_count = DAVINCI_CPUIDLE_MAX_STATES;
 
 	ret = cpuidle_register_driver(&davinci_idle_driver);
 	if (ret) {