intel_idle: initial IVB support

[pandora-kernel.git] / drivers / idle / intel_idle.c

diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c
index 5b39216..26e7b38 100644 (file)
--- 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 */
@@ -386,6 +418,10 @@ static int intel_idle_probe(void)
                cpuidle_state_table = snb_cstates;
                break;
 
+       case 0x3A:      /* IVB */
+               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);