diff options
| author | Werner Zeh <werner.zeh@siemens.com> | 2021-11-03 10:37:57 +0100 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2021-11-04 11:04:46 +0000 |
| commit | 9916eb400f0c58d316d5592c5c8629676925601f (patch) | |
| tree | 111c030367a18d48d1e19ac7e9f7eeedcb8b71e3 /src/mainboard | |
| parent | 2d046936401d49dff8b4ab6cf509eeac92db865d (diff) | |
mb/siemens/mc_ehl: Disable all P-States
In order to get a reliable real-time performance disable all P-States
for all mc_ehl based mainboard.
Change-Id: I22857cc0f1476483ca82c1c872e4519e4b350ea9
Signed-off-by: Werner Zeh <werner.zeh@siemens.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/58894
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Lean Sheng Tan <lean.sheng.tan@intel.com>
Reviewed-by: Mario Scheithauer <mario.scheithauer@siemens.com>
Diffstat (limited to 'src/mainboard')
| -rw-r--r-- | src/mainboard/siemens/mc_ehl/mainboard.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/mainboard/siemens/mc_ehl/mainboard.c b/src/mainboard/siemens/mc_ehl/mainboard.c index eff2d21ac6..fc03115a8e 100644 --- a/src/mainboard/siemens/mc_ehl/mainboard.c +++ b/src/mainboard/siemens/mc_ehl/mainboard.c @@ -122,6 +122,9 @@ void mainboard_silicon_init_params(FSP_S_CONFIG *params) /* Set maximum package C-state to PkgC0C1 */ params->PkgCStateLimit = 0; + + /* Disable P-States */ + params->MaxRatio = 0; } static void mainboard_init(void *chip_info) |