X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=drivers%2Facpi%2Fprocessor_idle.c;h=2235f4e02d26f46267b512a0d3c4c14badc34526;hb=444ad82bc3eaa554be40d22dc248e58aeefd54d9;hp=b1fbee3f7fe1aff55771ccef5cdee7dc703ac901;hpb=8912858bcb9e314549a4abc15db6b5841a96fa2c;p=linux-2.6

diff --git a/drivers/acpi/processor_idle.c b/drivers/acpi/processor_idle.c
index b1fbee3f7f..2235f4e02d 100644
--- a/drivers/acpi/processor_idle.c
+++ b/drivers/acpi/processor_idle.c
@@ -76,7 +76,11 @@ static void (*pm_idle_save) (void) __read_mostly;
 #define PM_TIMER_TICKS_TO_US(p)		(((p) * 1000)/(PM_TIMER_FREQUENCY/1000))
 
 static unsigned int max_cstate __read_mostly = ACPI_PROCESSOR_MAX_POWER;
+#ifdef CONFIG_CPU_IDLE
 module_param(max_cstate, uint, 0000);
+#else
+module_param(max_cstate, uint, 0644);
+#endif
 static unsigned int nocst __read_mostly;
 module_param(nocst, uint, 0000);
 
@@ -530,6 +534,11 @@ static void acpi_processor_idle(void)
 		break;
 
 	case ACPI_STATE_C3:
+		/*
+		 * Must be done before busmaster disable as we might
+		 * need to access HPET !
+		 */
+		acpi_state_timer_broadcast(pr, cx, 1);
 		/*
 		 * disable bus master
 		 * bm_check implies we need ARB_DIS
@@ -557,7 +566,6 @@ static void acpi_processor_idle(void)
 		/* Get start time (ticks) */
 		t1 = inl(acpi_gbl_FADT.xpm_timer_block.address);
 		/* Invoke C3 */
-		acpi_state_timer_broadcast(pr, cx, 1);
 		/* Tell the scheduler that we are going deep-idle: */
 		sched_clock_idle_sleep_event();
 		acpi_cstate_enter(cx);
@@ -1401,9 +1409,6 @@ static int acpi_idle_enter_simple(struct cpuidle_device *dev,
 	if (acpi_idle_suspend)
 		return(acpi_idle_enter_c1(dev, state));
 
-	if (pr->flags.bm_check)
-		acpi_idle_update_bm_rld(pr, cx);
-
 	local_irq_disable();
 	current_thread_info()->status &= ~TS_POLLING;
 	/*
@@ -1418,13 +1423,21 @@ static int acpi_idle_enter_simple(struct cpuidle_device *dev,
 		return 0;
 	}
 
+	/*
+	 * Must be done before busmaster disable as we might need to
+	 * access HPET !
+	 */
+	acpi_state_timer_broadcast(pr, cx, 1);
+
+	if (pr->flags.bm_check)
+		acpi_idle_update_bm_rld(pr, cx);
+
 	if (cx->type == ACPI_STATE_C3)
 		ACPI_FLUSH_CPU_CACHE();
 
 	t1 = inl(acpi_gbl_FADT.xpm_timer_block.address);
 	/* Tell the scheduler that we are going deep-idle: */
 	sched_clock_idle_sleep_event();
-	acpi_state_timer_broadcast(pr, cx, 1);
 	acpi_idle_do_entry(cx);
 	t2 = inl(acpi_gbl_FADT.xpm_timer_block.address);