diff options
| author |   Artem Bityutskiy <artem.bityutskiy@linux.intel.com> | 2023-01-20 11:15:28 +0200 |
|---|---|---|
| committer |   Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2023-01-20 18:39:42 +0100 |
| commit | 74528edfbc664f9d2c927c4e5a44f1285598ed0f (patch) | |
| tree | c4cdcddad86ab6ee8c32914049ca1f6bda2b2a7d /drivers/idle | |
| parent | cpuidle-haltpoll: Replace default_idle() with arch_cpu_idle() (diff) | |
| download | wireguard-linux-74528edfbc664f9d2c927c4e5a44f1285598ed0f.tar.xz wireguard-linux-74528edfbc664f9d2c927c4e5a44f1285598ed0f.zip | |
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: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/idle')
| -rw-r--r-- | drivers/idle/intel_idle.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/idle/intel_idle.c b/drivers/idle/intel_idle.c index cfeb24d40d37..bb3d10099ba4 100644 --- a/drivers/idle/intel_idle.c +++ b/drivers/idle/intel_idle.c @@ -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: |