diff options
Diffstat (limited to 'src/soc')
| -rw-r--r-- | src/soc/intel/alderlake/chip.h | 6 | ||||
| -rw-r--r-- | src/soc/intel/alderlake/fsp_params.c | 2 |
2 files changed, 8 insertions, 0 deletions
diff --git a/src/soc/intel/alderlake/chip.h b/src/soc/intel/alderlake/chip.h index e7e2f20805..a69e6455ee 100644 --- a/src/soc/intel/alderlake/chip.h +++ b/src/soc/intel/alderlake/chip.h @@ -560,6 +560,12 @@ struct soc_intel_alderlake_config { /* Energy-Performance Preference (HWP feature) */ bool enable_energy_perf_pref; uint8_t energy_perf_pref_value; + + /* + * Enable or Disable C1 Cstate Demotion. + * Default 0. Set this to 1 in order to disable C state demotion. + */ + bool disable_c1_state_auto_demotion; }; typedef struct soc_intel_alderlake_config config_t; diff --git a/src/soc/intel/alderlake/fsp_params.c b/src/soc/intel/alderlake/fsp_params.c index 90ecf86d05..f0e0ac2c6f 100644 --- a/src/soc/intel/alderlake/fsp_params.c +++ b/src/soc/intel/alderlake/fsp_params.c @@ -717,6 +717,8 @@ static void fill_fsps_misc_power_params(FSP_S_CONFIG *s_cfg, /* PsysPmax is in unit of 1/8 Watt */ s_cfg->PsysPmax = config->platform_pmax * 8; } + + s_cfg->C1StateAutoDemotion = !config->disable_c1_state_auto_demotion; } static void fill_fsps_irq_params(FSP_S_CONFIG *s_cfg, |