X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=drivers%2Fidle%2Fintel_idle.c;h=4fa2b11331aefe2274f113984f576bda6ae76626;hb=refs%2Fheads%2Fpandora-3.2-hugetlb;hp=5d2f8e13cf0e670e83b48b6dc243402d781b9758;hpb=94956eed14b4b16d401c8ad36d68df0608f968cb;p=pandora-kernel.git

diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c
index 5d2f8e13cf0e..4fa2b11331ae 100644
--- a/drivers/idle/intel_idle.c
+++ b/drivers/idle/intel_idle.c
@@ -163,6 +163,38 @@ static struct cpuidle_state snb_cstates[MWAIT_MAX_NUM_CSTATES] = {
 		.enter = &intel_idle },
 };
 
+static struct cpuidle_state ivb_cstates[MWAIT_MAX_NUM_CSTATES] = {
+	{ /* MWAIT C0 */ },
+	{ /* MWAIT C1 */
+		.name = "C1-IVB",
+		.desc = "MWAIT 0x00",
+		.flags = CPUIDLE_FLAG_TIME_VALID,
+		.exit_latency = 1,
+		.target_residency = 1,
+		.enter = &intel_idle },
+	{ /* MWAIT C2 */
+		.name = "C3-IVB",
+		.desc = "MWAIT 0x10",
+		.flags = CPUIDLE_FLAG_TIME_VALID | CPUIDLE_FLAG_TLB_FLUSHED,
+		.exit_latency = 59,
+		.target_residency = 156,
+		.enter = &intel_idle },
+	{ /* MWAIT C3 */
+		.name = "C6-IVB",
+		.desc = "MWAIT 0x20",
+		.flags = CPUIDLE_FLAG_TIME_VALID | CPUIDLE_FLAG_TLB_FLUSHED,
+		.exit_latency = 80,
+		.target_residency = 300,
+		.enter = &intel_idle },
+	{ /* MWAIT C4 */
+		.name = "C7-IVB",
+		.desc = "MWAIT 0x30",
+		.flags = CPUIDLE_FLAG_TIME_VALID | CPUIDLE_FLAG_TLB_FLUSHED,
+		.exit_latency = 87,
+		.target_residency = 300,
+		.enter = &intel_idle },
+};
+
 static struct cpuidle_state atom_cstates[MWAIT_MAX_NUM_CSTATES] = {
 	{ /* MWAIT C0 */ },
 	{ /* MWAIT C1 */
@@ -348,7 +380,8 @@ static int intel_idle_probe(void)
 	cpuid(CPUID_MWAIT_LEAF, &eax, &ebx, &ecx, &mwait_substates);
 
 	if (!(ecx & CPUID5_ECX_EXTENSIONS_SUPPORTED) ||
-		!(ecx & CPUID5_ECX_INTERRUPT_BREAK))
+	    !(ecx & CPUID5_ECX_INTERRUPT_BREAK) ||
+	    !mwait_substates)
 			return -ENODEV;
 
 	pr_debug(PREFIX "MWAIT substates: 0x%x\n", mwait_substates);
@@ -385,6 +418,11 @@ static int intel_idle_probe(void)
 		cpuidle_state_table = snb_cstates;
 		break;
 
+	case 0x3A:	/* IVB */
+	case 0x3E:	/* IVB Xeon */
+		cpuidle_state_table = ivb_cstates;
+		break;
+
 	default:
 		pr_debug(PREFIX "does not run on family %d model %d\n",
 			boot_cpu_data.x86, boot_cpu_data.x86_model);
@@ -393,10 +431,8 @@ static int intel_idle_probe(void)
 
 	if (boot_cpu_has(X86_FEATURE_ARAT))	/* Always Reliable APIC Timer */
 		lapic_timer_reliable_states = LAPIC_TIMER_ALWAYS_RELIABLE;
-	else {
-		smp_call_function(__setup_broadcast_timer, (void *)true, 1);
-		register_cpu_notifier(&setup_broadcast_notifier);
-	}
+	else
+		on_each_cpu(__setup_broadcast_timer, (void *)true, 1);
 
 	pr_debug(PREFIX "v" INTEL_IDLE_VERSION
 		" model 0x%X\n", boot_cpu_data.x86_model);
@@ -471,7 +507,7 @@ static int intel_idle_cpuidle_driver_init(void)
 	}
 
 	if (auto_demotion_disable_flags)
-		smp_call_function(auto_demotion_disable, NULL, 1);
+		on_each_cpu(auto_demotion_disable, NULL, 1);
 
 	return 0;
 }
@@ -559,6 +595,9 @@ static int __init intel_idle_init(void)
 		return retval;
 	}
 
+	if (lapic_timer_reliable_states != LAPIC_TIMER_ALWAYS_RELIABLE)
+		register_cpu_notifier(&setup_broadcast_notifier);
+
 	return 0;
 }
 
@@ -568,7 +607,7 @@ static void __exit intel_idle_exit(void)
 	cpuidle_unregister_driver(&intel_idle_driver);
 
 	if (lapic_timer_reliable_states != LAPIC_TIMER_ALWAYS_RELIABLE) {
-		smp_call_function(__setup_broadcast_timer, (void *)false, 1);
+		on_each_cpu(__setup_broadcast_timer, (void *)false, 1);
 		unregister_cpu_notifier(&setup_broadcast_notifier);
 	}