soc/intel/meteorlake: Add EPP override support

This updates energy performance preference value to all logical CPUs
when the corresponding chip config is true.

This patch is backported from
`commit 0bb2225718 ("soc/intel/alderlake: Add EPP override
support")`.

BUG=b:266522659
TEST=Able to build and boot google/rex.

Signed-off-by: Subrata Banik <subratabanik@google.com>
Change-Id: I8172276159fe3987dae36ec30ebceb76dd0ef326
Reviewed-on: https://review.coreboot.org/c/coreboot/+/74154
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Subrata Banik 2023-04-01 14:48:15 +05:30
parent 725f2c8a81
commit d0d7f47104
2 changed files with 24 additions and 1 deletions

View File

@ -346,6 +346,10 @@ struct soc_intel_meteorlake_config {
/* Enable PCH to CPU energy report feature. */
bool pch_pm_energy_report_enable;
/* Energy-Performance Preference (HWP feature) */
bool enable_energy_perf_pref;
uint8_t energy_perf_pref_value;
};
typedef struct soc_intel_meteorlake_config config_t;

View File

@ -124,6 +124,12 @@ void soc_core_init(struct device *cpu)
/* Set energy policy */
set_energy_perf_bias(ENERGY_POLICY_NORMAL);
const config_t *conf = config_of_soc();
/* Set energy-performance preference */
if (conf->enable_energy_perf_pref)
if (check_energy_perf_cap())
set_energy_perf_pref(conf->energy_perf_pref_value);
/* Enable Turbo */
enable_turbo();
@ -140,6 +146,19 @@ static void per_cpu_smm_trigger(void)
smm_relocate();
}
static void pre_mp_init(void)
{
soc_fsp_load();
const config_t *conf = config_of_soc();
if (conf->enable_energy_perf_pref) {
if (check_energy_perf_cap())
enable_energy_perf_pref();
else
printk(BIOS_WARNING, "Energy Performance Preference not supported!\n");
}
}
static void post_mp_init(void)
{
/* Set Max Ratio */
@ -160,7 +179,7 @@ static const struct mp_ops mp_ops = {
* that are set prior to ramstage.
* Real MTRRs programming are being done after resource allocation.
*/
.pre_mp_init = soc_fsp_load,
.pre_mp_init = pre_mp_init,
.get_cpu_count = get_cpu_count,
.get_smm_info = smm_info,
.get_microcode_info = get_microcode_info,