diff options
| author | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2023-04-14 15:37:27 +0300 |
|---|---|---|
| committer | Kyösti Mälkki <kyosti.malkki@gmail.com> | 2023-04-21 09:38:36 +0000 |
| commit | 9ff9797ad74e286f4f04943a32757a40fb0813a6 (patch) | |
| tree | 23ad3e4de6b7c4569a56e21616d2cbc7bd9840b9 /src/acpi | |
| parent | 67c48a36776695b956ea49eb308c1025e430b475 (diff) | |
ACPI: Obsolete FADT duty_offset and duty_width fields
After the obsoletion of Processor() it is necessary to provide
_PTC package to define P_CNT IO address for clock throttling.
The platforms touched here already emit empty _PTC to disable
clock throttling.
Change-Id: I0e84c8ccd2772c9b3d61f71b74324c8d28f4eefe
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/74438
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/acpi')
| -rw-r--r-- | src/acpi/acpi.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/acpi/acpi.c b/src/acpi/acpi.c index f8994eb9e9..fb9a758fb0 100644 --- a/src/acpi/acpi.c +++ b/src/acpi/acpi.c @@ -1689,6 +1689,10 @@ void acpi_create_fadt(acpi_fadt_t *fadt, acpi_facs_t *facs, void *dsdt) fadt->p_lvl2_lat = ACPI_FADT_C2_NOT_SUPPORTED; fadt->p_lvl3_lat = ACPI_FADT_C3_NOT_SUPPORTED; + /* Use CPU _PTC instead to provide P_CNT details. */ + fadt->duty_offset = 0; + fadt->duty_width = 0; + fadt->preferred_pm_profile = acpi_get_preferred_pm_profile(); if (CONFIG(USE_PC_CMOS_ALTCENTURY)) |