X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?p=pandora-kernel.git;a=blobdiff_plain;f=arch%2Fx86%2Fkernel%2Fprocess.c;h=d8286ed54ffaba86a0882baae443cd9d267b5a30;hp=09c08a1c706f0993a59475d8a7446c4cd2eecd93;hb=16c1020362083b320868c0deef492249089c3cd3;hpb=7d44b0440147d83a65270205b22e7d365de28948

diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c
index 09c08a1c706f..d8286ed54ffa 100644
--- a/arch/x86/kernel/process.c
+++ b/arch/x86/kernel/process.c
@@ -22,11 +22,6 @@
 #include <asm/i387.h>
 #include <asm/debugreg.h>
 
-unsigned long idle_halt;
-EXPORT_SYMBOL(idle_halt);
-unsigned long idle_nomwait;
-EXPORT_SYMBOL(idle_nomwait);
-
 struct kmem_cache *task_xstate_cachep;
 EXPORT_SYMBOL_GPL(task_xstate_cachep);
 
@@ -327,7 +322,7 @@ long sys_execve(const char __user *name,
 /*
  * Idle related variables and functions
  */
-unsigned long boot_option_idle_override = 0;
+unsigned long boot_option_idle_override = IDLE_NO_OVERRIDE;
 EXPORT_SYMBOL(boot_option_idle_override);
 
 /*
@@ -386,6 +381,8 @@ void default_idle(void)
 		else
 			local_irq_enable();
 		current_thread_info()->status |= TS_POLLING;
+		trace_power_end(smp_processor_id());
+		trace_cpu_idle(PWR_EVENT_EXIT, smp_processor_id());
 	} else {
 		local_irq_enable();
 		/* loop is done by the caller */
@@ -443,8 +440,6 @@ EXPORT_SYMBOL_GPL(cpu_idle_wait);
  */
 void mwait_idle_with_hints(unsigned long ax, unsigned long cx)
 {
-	trace_power_start(POWER_CSTATE, (ax>>4)+1, smp_processor_id());
-	trace_cpu_idle((ax>>4)+1, smp_processor_id());
 	if (!need_resched()) {
 		if (cpu_has(__this_cpu_ptr(&cpu_info), X86_FEATURE_CLFLUSH_MONITOR))
 			clflush((void *)&current_thread_info()->flags);
@@ -471,6 +466,8 @@ static void mwait_idle(void)
 			__sti_mwait(0, 0);
 		else
 			local_irq_enable();
+		trace_power_end(smp_processor_id());
+		trace_cpu_idle(PWR_EVENT_EXIT, smp_processor_id());
 	} else
 		local_irq_enable();
 }
@@ -503,7 +500,6 @@ static void poll_idle(void)
  *
  * idle=mwait overrides this decision and forces the usage of mwait.
  */
-static int __cpuinitdata force_mwait;
 
 #define MWAIT_INFO			0x05
 #define MWAIT_ECX_EXTENDED_INFO		0x01
@@ -513,7 +509,7 @@ static int __cpuinit mwait_usable(const struct cpuinfo_x86 *c)
 {
 	u32 eax, ebx, ecx, edx;
 
-	if (force_mwait)
+	if (boot_option_idle_override == IDLE_FORCE_MWAIT)
 		return 1;
 
 	if (c->cpuid_level < MWAIT_INFO)
@@ -633,9 +629,10 @@ static int __init idle_setup(char *str)
 	if (!strcmp(str, "poll")) {
 		printk("using polling idle threads.\n");
 		pm_idle = poll_idle;
-	} else if (!strcmp(str, "mwait"))
-		force_mwait = 1;
-	else if (!strcmp(str, "halt")) {
+		boot_option_idle_override = IDLE_POLL;
+	} else if (!strcmp(str, "mwait")) {
+		boot_option_idle_override = IDLE_FORCE_MWAIT;
+	} else if (!strcmp(str, "halt")) {
 		/*
 		 * When the boot option of idle=halt is added, halt is
 		 * forced to be used for CPU idle. In such case CPU C2/C3
@@ -644,8 +641,7 @@ static int __init idle_setup(char *str)
 		 * the boot_option_idle_override.
 		 */
 		pm_idle = default_idle;
-		idle_halt = 1;
-		return 0;
+		boot_option_idle_override = IDLE_HALT;
 	} else if (!strcmp(str, "nomwait")) {
 		/*
 		 * If the boot option of "idle=nomwait" is added,
@@ -653,12 +649,10 @@ static int __init idle_setup(char *str)
 		 * states. In such case it won't touch the variable
 		 * of boot_option_idle_override.
 		 */
-		idle_nomwait = 1;
-		return 0;
+		boot_option_idle_override = IDLE_NOMWAIT;
 	} else
 		return -1;
 
-	boot_option_idle_override = 1;
 	return 0;
 }
 early_param("idle", idle_setup);