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cpufreq: amd-pstate: implement amd pstate cpu online and offline callback

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Adds online and offline driver callback support to allow cpu cores go
offline and help to restore the previous working states when core goes
back online later for EPP driver mode.

Acked-by: Huang Rui <ray.huang@amd.com>
Reviewed-by: Mario Limonciello <Mario.Limonciello@amd.com>
Reviewed-by: Wyes Karny <wyes.karny@amd.com>
Tested-by: Wyes Karny <wyes.karny@amd.com>
Signed-off-by: Perry Yuan <Perry.Yuan@amd.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Perry Yuan
2023-01-31 17:00:10 +08:00
committed by Rafael J. Wysocki
parent ffa5096a7c
commit d4da12f803
2 changed files with 83 additions and 0 deletions
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include/linux/amd-pstate.h
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@@ -87,6 +87,7 @@ struct amd_cpudata {
s16 epp_cached;
u32 policy;
u64 cppc_cap1_cached;
bool suspended;
};
/*