diff options
| author | Len Brown <len.brown@intel.com> | 2013-02-27 13:18:50 -0500 |
|---|---|---|
| committer | Len Brown <len.brown@intel.com> | 2013-04-17 19:23:32 -0400 |
| commit | 86239ceb33b0d8480b0f0ca0eec08e7f7a807374 (patch) | |
| tree | a550318b207a3bdde7c095b23c3dfef18637ea12 | |
| parent | ca58710f3ae585ed6203043cc6d4ffb805adeee4 (diff) | |
intel_idle: initial C8, C9, C10 support
Allow intel_idle and cpuidle to utilize C8, C9, C10
when they are present on...
"Fourth Generation Intel(R) Core(TM) Processors",
which are based on Intel(R) microarchitecture code name Haswell.
Signed-off-by: Len Brown <len.brown@intel.com>
| -rw-r--r-- | drivers/idle/intel_idle.c | 21 | ||||
| -rw-r--r-- | include/linux/cpuidle.h | 2 |
2 files changed, 22 insertions, 1 deletions
diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c index 1a38dd7dfe4..c7fbac39295 100644 --- a/drivers/idle/intel_idle.c +++ b/drivers/idle/intel_idle.c @@ -274,6 +274,27 @@ static struct cpuidle_state hsw_cstates[CPUIDLE_STATE_MAX] = { .target_residency = 500, .enter = &intel_idle }, { + .name = "C8-HSW", + .desc = "MWAIT 0x40", + .flags = MWAIT2flg(0x40) | CPUIDLE_FLAG_TIME_VALID | CPUIDLE_FLAG_TLB_FLUSHED, + .exit_latency = 300, + .target_residency = 900, + .enter = &intel_idle }, + { + .name = "C9-HSW", + .desc = "MWAIT 0x50", + .flags = MWAIT2flg(0x50) | CPUIDLE_FLAG_TIME_VALID | CPUIDLE_FLAG_TLB_FLUSHED, + .exit_latency = 600, + .target_residency = 1800, + .enter = &intel_idle }, + { + .name = "C10-HSW", + .desc = "MWAIT 0x60", + .flags = MWAIT2flg(0x60) | CPUIDLE_FLAG_TIME_VALID | CPUIDLE_FLAG_TLB_FLUSHED, + .exit_latency = 2600, + .target_residency = 7700, + .enter = &intel_idle }, + { .enter = NULL } }; diff --git a/include/linux/cpuidle.h b/include/linux/cpuidle.h index 480c14dc1dd..309f7f596b4 100644 --- a/include/linux/cpuidle.h +++ b/include/linux/cpuidle.h @@ -17,7 +17,7 @@ #include <linux/completion.h> #include <linux/hrtimer.h> -#define CPUIDLE_STATE_MAX 8 +#define CPUIDLE_STATE_MAX 10 #define CPUIDLE_NAME_LEN 16 #define CPUIDLE_DESC_LEN 32 |