diff options
Diffstat (limited to 'drivers/idle/intel_idle.c')
| -rw-r--r-- | drivers/idle/intel_idle.c | 68 |
1 files changed, 56 insertions, 12 deletions
diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c index 5c979d0667a2..2a36a95d95cf 100644 --- a/drivers/idle/intel_idle.c +++ b/drivers/idle/intel_idle.c @@ -218,18 +218,10 @@ static struct cpuidle_state byt_cstates[] = { .enter = &intel_idle, .enter_freeze = intel_idle_freeze, }, { - .name = "C1E-BYT", - .desc = "MWAIT 0x01", - .flags = MWAIT2flg(0x01), - .exit_latency = 15, - .target_residency = 30, - .enter = &intel_idle, - .enter_freeze = intel_idle_freeze, }, - { .name = "C6N-BYT", .desc = "MWAIT 0x58", .flags = MWAIT2flg(0x58) | CPUIDLE_FLAG_TLB_FLUSHED, - .exit_latency = 40, + .exit_latency = 300, .target_residency = 275, .enter = &intel_idle, .enter_freeze = intel_idle_freeze, }, @@ -237,7 +229,7 @@ static struct cpuidle_state byt_cstates[] = { .name = "C6S-BYT", .desc = "MWAIT 0x52", .flags = MWAIT2flg(0x52) | CPUIDLE_FLAG_TLB_FLUSHED, - .exit_latency = 140, + .exit_latency = 500, .target_residency = 560, .enter = &intel_idle, .enter_freeze = intel_idle_freeze, }, @@ -246,7 +238,7 @@ static struct cpuidle_state byt_cstates[] = { .desc = "MWAIT 0x60", .flags = MWAIT2flg(0x60) | CPUIDLE_FLAG_TLB_FLUSHED, .exit_latency = 1200, - .target_residency = 1500, + .target_residency = 4000, .enter = &intel_idle, .enter_freeze = intel_idle_freeze, }, { @@ -261,6 +253,51 @@ static struct cpuidle_state byt_cstates[] = { .enter = NULL } }; +static struct cpuidle_state cht_cstates[] = { + { + .name = "C1-CHT", + .desc = "MWAIT 0x00", + .flags = MWAIT2flg(0x00), + .exit_latency = 1, + .target_residency = 1, + .enter = &intel_idle, + .enter_freeze = intel_idle_freeze, }, + { + .name = "C6N-CHT", + .desc = "MWAIT 0x58", + .flags = MWAIT2flg(0x58) | CPUIDLE_FLAG_TLB_FLUSHED, + .exit_latency = 80, + .target_residency = 275, + .enter = &intel_idle, + .enter_freeze = intel_idle_freeze, }, + { + .name = "C6S-CHT", + .desc = "MWAIT 0x52", + .flags = MWAIT2flg(0x52) | CPUIDLE_FLAG_TLB_FLUSHED, + .exit_latency = 200, + .target_residency = 560, + .enter = &intel_idle, + .enter_freeze = intel_idle_freeze, }, + { + .name = "C7-CHT", + .desc = "MWAIT 0x60", + .flags = MWAIT2flg(0x60) | CPUIDLE_FLAG_TLB_FLUSHED, + .exit_latency = 1200, + .target_residency = 4000, + .enter = &intel_idle, + .enter_freeze = intel_idle_freeze, }, + { + .name = "C7S-CHT", + .desc = "MWAIT 0x64", + .flags = MWAIT2flg(0x64) | CPUIDLE_FLAG_TLB_FLUSHED, + .exit_latency = 10000, + .target_residency = 20000, + .enter = &intel_idle, + .enter_freeze = intel_idle_freeze, }, + { + .enter = NULL } +}; + static struct cpuidle_state ivb_cstates[] = { { .name = "C1-IVB", @@ -747,6 +784,12 @@ static const struct idle_cpu idle_cpu_byt = { .byt_auto_demotion_disable_flag = true, }; +static const struct idle_cpu idle_cpu_cht = { + .state_table = cht_cstates, + .disable_promotion_to_c1e = true, + .byt_auto_demotion_disable_flag = true, +}; + static const struct idle_cpu idle_cpu_ivb = { .state_table = ivb_cstates, .disable_promotion_to_c1e = true, @@ -775,7 +818,7 @@ static const struct idle_cpu idle_cpu_avn = { #define ICPU(model, cpu) \ { X86_VENDOR_INTEL, 6, model, X86_FEATURE_MWAIT, (unsigned long)&cpu } -static const struct x86_cpu_id intel_idle_ids[] = { +static const struct x86_cpu_id intel_idle_ids[] __initconst = { ICPU(0x1a, idle_cpu_nehalem), ICPU(0x1e, idle_cpu_nehalem), ICPU(0x1f, idle_cpu_nehalem), @@ -789,6 +832,7 @@ static const struct x86_cpu_id intel_idle_ids[] = { ICPU(0x2d, idle_cpu_snb), ICPU(0x36, idle_cpu_atom), ICPU(0x37, idle_cpu_byt), + ICPU(0x4c, idle_cpu_cht), ICPU(0x3a, idle_cpu_ivb), ICPU(0x3e, idle_cpu_ivt), ICPU(0x3c, idle_cpu_hsw), |