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| author | Perry Yuan <[email protected]> | 2024-02-08 03:46:28 +0000 |
|---|---|---|
| committer | Rafael J. Wysocki <[email protected]> | 2024-03-05 12:23:12 +0000 |
| commit | a51ab63b297ce9e26e3ffb9be896018a42d5f32f (patch) | |
| tree | 08b4a69366337a99fa86d62623738ca056e16f43 /tools/perf/scripts/python/intel-pt-events.py | |
| parent | Linux 6.8-rc7 (diff) | |
| download | kernel-a51ab63b297ce9e26e3ffb9be896018a42d5f32f.tar.gz kernel-a51ab63b297ce9e26e3ffb9be896018a42d5f32f.zip | |
ACPI: CPPC: enable AMD CPPC V2 support for family 17h processors
As there are some AMD processors which only support CPPC V2 firmware and
BIOS implementation, the amd_pstate driver will be failed to load when
system booting with below kernel warning message:
[ 0.477523] amd_pstate: the _CPC object is not present in SBIOS or ACPI disabled
To make the amd_pstate driver can be loaded on those TR40 processors, it
needs to match x86_model from 0x30 to 0x7F for family 17H.
With the change, the system can load amd_pstate driver as expected.
Reviewed-by: Mario Limonciello <[email protected]>
Reported-by: Gino Badouri <[email protected]>
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218171
Fixes: fbd74d1689 ("ACPI: CPPC: Fix enabling CPPC on AMD systems with shared memory")
Signed-off-by: Perry Yuan <[email protected]>
Reviewed-by: Gautham R. Shenoy <[email protected]>
Signed-off-by: Rafael J. Wysocki <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/intel-pt-events.py')
0 files changed, 0 insertions, 0 deletions