GNUBoot
/
coreboot-kgpe-d16
2
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

soc/intel/alderlake: Add EPP override support 

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

BUG=b:219785001
BRANCH=firmware-brya-14505.B

Signed-off-by: Cliff Huang <cliff.huang@intel.corp-partner.google.com>
Change-Id: Ie59623fe715b0c545f8d4b6c22ab2ce670a29798
Reviewed-on: https://review.coreboot.org/c/coreboot/+/62654
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
This commit is contained in:
Cliff Huang 2022-03-07 18:42:13 -08:00 committed by Felix Held
parent ca9658bdb2
commit 0bb2225718
2 changed files with 23 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
src/soc/intel/alderlake/chip.h
View File

@ -559,6 +559,10 @@ struct soc_intel_alderlake_config {
* 0: Fast/2, 1: Fast/4, 2: Fast/8, 3: Fast/16; see enum slew_rate for values
*/
uint8_t SlowSlewRate[NUM_VR_DOMAINS];
/* Energy-Performance Preference (HWP feature) */
bool enable_energy_perf_pref;
uint8_t energy_perf_pref_value;
};
typedef struct soc_intel_alderlake_config config_t;

20
src/soc/intel/alderlake/cpu.c
View File

@ -122,6 +122,11 @@ 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();
}
@ -132,6 +137,19 @@ 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 */
@ -152,7 +170,7 @@ 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,