x86/intel_idle: add Gemini Lake support

Gemini Lake uses the same C-states as Broxton and also uses the
IRTL MSR's to determine maximum C-state latency.

Signed-off-by: David E. Box <david.e.box@linux.intel.com>
Acked-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 5805b041dd0fc1a42c59a856663869e590e95a46..216d7ec88c0c7d55eca7ef198a53fb754da3c182 100644 (file)
--- a/drivers/idle/intel_idle.c
+++ b/drivers/idle/intel_idle.c
@@ -1097,6 +1097,7 @@ static const struct x86_cpu_id intel_idle_ids[] __initconst = {
        ICPU(INTEL_FAM6_XEON_PHI_KNL,           idle_cpu_knl),
        ICPU(INTEL_FAM6_XEON_PHI_KNM,           idle_cpu_knl),
        ICPU(INTEL_FAM6_ATOM_GOLDMONT,          idle_cpu_bxt),
+       ICPU(INTEL_FAM6_ATOM_GEMINI_LAKE,       idle_cpu_bxt),
        ICPU(INTEL_FAM6_ATOM_DENVERTON,         idle_cpu_dnv),
        {}
 };
@@ -1309,6 +1310,7 @@ static void intel_idle_state_table_update(void)
                ivt_idle_state_table_update();
                break;
        case INTEL_FAM6_ATOM_GOLDMONT:
+       case INTEL_FAM6_ATOM_GEMINI_LAKE:
                bxt_idle_state_table_update();
                break;
        case INTEL_FAM6_SKYLAKE_DESKTOP: