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path: root/drivers/idle/intel_idle.c
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Diffstat (limited to 'drivers/idle/intel_idle.c')
-rw-r--r--drivers/idle/intel_idle.c66
1 files changed, 55 insertions, 11 deletions
diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c
index f5b7fc56fa4a..1fb52f4e5870 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",
@@ -748,6 +785,12 @@ 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,
@@ -790,6 +833,7 @@ static const struct x86_cpu_id intel_idle_ids[] __initconst = {
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),