Commit 74528edf authored by Artem Bityutskiy's avatar Artem Bityutskiy Committed by Rafael J. Wysocki
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intel_idle: add Emerald Rapids Xeon support 



Emerald Rapids (EMR) is the next Intel Xeon processor after Sapphire
Rapids (SPR).

EMR C-states are the same as SPR C-states, and we expect that EMR
C-state characteristics (latency and target residency) will be the
same as in SPR. Therefore, add EMR support by using SPR C-states table.

Signed-off-by: default avatarArtem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: default avatarRafael J. Wysocki <rafael.j.wysocki@intel.com>
parent 716ff71a

drivers/idle/intel_idle.c

+2 −0
Original line number Diff line number Diff line
@@ -1430,6 +1430,7 @@ static const struct x86_cpu_id intel_idle_ids[] __initconst = { 
	X86_MATCH_INTEL_FAM6_MODEL(ALDERLAKE_L,		&idle_cpu_adl_l),

	X86_MATCH_INTEL_FAM6_MODEL(ALDERLAKE_N,		&idle_cpu_adl_n),

	X86_MATCH_INTEL_FAM6_MODEL(SAPPHIRERAPIDS_X,	&idle_cpu_spr),

	X86_MATCH_INTEL_FAM6_MODEL(EMERALDRAPIDS_X,	&idle_cpu_spr),

	X86_MATCH_INTEL_FAM6_MODEL(XEON_PHI_KNL,	&idle_cpu_knl),

	X86_MATCH_INTEL_FAM6_MODEL(XEON_PHI_KNM,	&idle_cpu_knl),

	X86_MATCH_INTEL_FAM6_MODEL(ATOM_GOLDMONT,	&idle_cpu_bxt),
@@ -1862,6 +1863,7 @@ static void __init intel_idle_init_cstates_icpu(struct cpuidle_driver *drv) 
		skx_idle_state_table_update();

		break;

	case INTEL_FAM6_SAPPHIRERAPIDS_X:

	case INTEL_FAM6_EMERALDRAPIDS_X:

		spr_idle_state_table_update();

		break;

	case INTEL_FAM6_ALDERLAKE: