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),