intel_idle: update Sandy Bridge core C-state residency targets

Signed-off-by: Len Brown <len.brown@intel.com>

diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c
index c131d58..94a6526 100644 (file)
--- a/drivers/idle/intel_idle.c
+++ b/drivers/idle/intel_idle.c
@@ -122,7 +122,7 @@ static struct cpuidle_state snb_cstates[MWAIT_MAX_NUM_CSTATES] = {
                .driver_data = (void *) 0x00,
                .flags = CPUIDLE_FLAG_TIME_VALID,
                .exit_latency = 1,
-               .target_residency = 4,
+               .target_residency = 1,
                .enter = &intel_idle },
        { /* MWAIT C2 */
                .name = "SNB-C3",
@@ -130,7 +130,7 @@ static struct cpuidle_state snb_cstates[MWAIT_MAX_NUM_CSTATES] = {
                .driver_data = (void *) 0x10,
                .flags = CPUIDLE_FLAG_TIME_VALID | CPUIDLE_FLAG_TLB_FLUSHED,
                .exit_latency = 80,
-               .target_residency = 160,
+               .target_residency = 211,
                .enter = &intel_idle },
        { /* MWAIT C3 */
                .name = "SNB-C6",
@@ -138,7 +138,7 @@ static struct cpuidle_state snb_cstates[MWAIT_MAX_NUM_CSTATES] = {
                .driver_data = (void *) 0x20,
                .flags = CPUIDLE_FLAG_TIME_VALID | CPUIDLE_FLAG_TLB_FLUSHED,
                .exit_latency = 104,
-               .target_residency = 208,
+               .target_residency = 345,
                .enter = &intel_idle },
        { /* MWAIT C4 */
                .name = "SNB-C7",
@@ -146,7 +146,7 @@ static struct cpuidle_state snb_cstates[MWAIT_MAX_NUM_CSTATES] = {
                .driver_data = (void *) 0x30,
                .flags = CPUIDLE_FLAG_TIME_VALID | CPUIDLE_FLAG_TLB_FLUSHED,
                .exit_latency = 109,
-               .target_residency = 300,
+               .target_residency = 345,
                .enter = &intel_idle },
 };