diff options
| author | V Sowmya <v.sowmya@intel.com> | 2021-06-21 10:23:33 +0530 |
|---|---|---|
| committer | Werner Zeh <werner.zeh@siemens.com> | 2021-07-12 04:28:39 +0000 |
| commit | af42906efa72e699181a058ccaf09f2dc3989831 (patch) | |
| tree | 91febec8d10447f3ba2591529f435bf6e165e4ad /src | |
| parent | 250356c0c1db8f90c8d70543007f2699479f567e (diff) | |
soc/intel/alderlake: Set max Pkg C-states to Auto
This patch configures max Pkg C-state to Auto which limits the max
C-state to deep C-state
Signed-off-by: V Sowmya <v.sowmya@intel.com>
Change-Id: Iab92eaadad3f17ed8dddc4f383d6eeaab8c9ea6e
Reviewed-on: https://review.coreboot.org/c/coreboot/+/55706
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Diffstat (limited to 'src')
| -rw-r--r-- | src/soc/intel/alderlake/chip.h | 18 | ||||
| -rw-r--r-- | src/soc/intel/alderlake/fsp_params.c | 1 |
2 files changed, 19 insertions, 0 deletions
diff --git a/src/soc/intel/alderlake/chip.h b/src/soc/intel/alderlake/chip.h index 709ab3cfc5..077a58df79 100644 --- a/src/soc/intel/alderlake/chip.h +++ b/src/soc/intel/alderlake/chip.h @@ -71,6 +71,24 @@ enum fivr_voltage_supported { #define FIVR_ENABLE_ALL_SX (FIVR_ENABLE_S0i1_S0i2 | FIVR_ENABLE_S0i3 | \ FIVR_ENABLE_S3 | FIVR_ENABLE_S4 | FIVR_ENABLE_S5) +/* + * The Max Pkg Cstate + * Values 0 - C0/C1, 1 - C2, 2 - C3, 3 - C6, 4 - C7, 5 - C7S, 6 - C8, 7 - C9, 8 - C10, + * 254 - CPU Default , 255 - Auto. + */ +enum pkgcstate_limit { + LIMIT_C0_C1 = 0, + LIMIT_C2 = 1, + LIMIT_C3 = 2, + LIMIT_C6 = 3, + LIMIT_C7 = 4, + LIMIT_C7S = 5, + LIMIT_C8 = 6, + LIMIT_C9 = 7, + LIMIT_C10 = 8, + LIMIT_CPUDEFAULT = 254, + LIMIT_AUTO = 255, +}; struct soc_intel_alderlake_config { diff --git a/src/soc/intel/alderlake/fsp_params.c b/src/soc/intel/alderlake/fsp_params.c index 5b0d63108b..6faa39370a 100644 --- a/src/soc/intel/alderlake/fsp_params.c +++ b/src/soc/intel/alderlake/fsp_params.c @@ -533,6 +533,7 @@ static void fill_fsps_misc_power_params(FSP_S_CONFIG *s_cfg, s_cfg->PsOnEnable = 1; /* Enable the energy efficient turbo mode */ s_cfg->EnergyEfficientTurbo = 1; + s_cfg->PkgCStateLimit = LIMIT_AUTO; } static void fill_fsps_irq_params(FSP_S_CONFIG *s_cfg, |