intel_idle: Add SKX support

SKX is similar to BDX

Signed-off-by: Len Brown <len.brown@intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c
index 862346bd053a69da2387e6e36166628e640bb8ca..4677c3da03a06f6fba1ef467a0f98845f19d541f 100644 (file)
--- a/drivers/idle/intel_idle.c
+++ b/drivers/idle/intel_idle.c
@@ -660,6 +660,35 @@ static struct cpuidle_state skl_cstates[] = {
                .enter = NULL }
 };
 
+static struct cpuidle_state skx_cstates[] = {
+       {
+               .name = "C1-SKX",
+               .desc = "MWAIT 0x00",
+               .flags = MWAIT2flg(0x00),
+               .exit_latency = 2,
+               .target_residency = 2,
+               .enter = &intel_idle,
+               .enter_freeze = intel_idle_freeze, },
+       {
+               .name = "C1E-SKX",
+               .desc = "MWAIT 0x01",
+               .flags = MWAIT2flg(0x01),
+               .exit_latency = 10,
+               .target_residency = 20,
+               .enter = &intel_idle,
+               .enter_freeze = intel_idle_freeze, },
+       {
+               .name = "C6-SKX",
+               .desc = "MWAIT 0x20",
+               .flags = MWAIT2flg(0x20) | CPUIDLE_FLAG_TLB_FLUSHED,
+               .exit_latency = 133,
+               .target_residency = 600,
+               .enter = &intel_idle,
+               .enter_freeze = intel_idle_freeze, },
+       {
+               .enter = NULL }
+};
+
 static struct cpuidle_state atom_cstates[] = {
        {
                .name = "C1E-ATM",
@@ -907,6 +936,10 @@ static const struct idle_cpu idle_cpu_skl = {
        .disable_promotion_to_c1e = true,
 };
 
+static const struct idle_cpu idle_cpu_skx = {
+       .state_table = skx_cstates,
+       .disable_promotion_to_c1e = true,
+};
 
 static const struct idle_cpu idle_cpu_avn = {
        .state_table = avn_cstates,
@@ -948,6 +981,7 @@ static const struct x86_cpu_id intel_idle_ids[] __initconst = {
        ICPU(0x56, idle_cpu_bdw),
        ICPU(0x4e, idle_cpu_skl),
        ICPU(0x5e, idle_cpu_skl),
+       ICPU(0x55, idle_cpu_skx),
        ICPU(0x57, idle_cpu_knl),
        {}
 };