Files
linux/drivers
Gautham R. Shenoy fcc25a291f amd-pstate: Update cppc_req_cached in fast_switch case
The function msr_update_perf() does not cache the new value that is
written to MSR_AMD_CPPC_REQ into the variable cpudata->cppc_req_cached
when the update is happening from the fast path.

Fix that by caching the value everytime the MSR_AMD_CPPC_REQ gets
updated.

This issue was discovered by Claude Opus 4.6 with the aid of Chris
Mason's AI review-prompts
(https://github.com/masoncl/review-prompts/tree/main/kernel).

Assisted-by: Claude:claude-opus-4.6 review-prompts/linux
Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org>
Fixes: fff3957969 ("cpufreq/amd-pstate: Always write EPP value when updating perf")
Signed-off-by: Gautham R. Shenoy <gautham.shenoy@amd.com>
Signed-off-by: Mario Limonciello (AMD) <superm1@kernel.org>
2026-04-02 11:28:12 -05:00
..
2026-01-07 21:17:43 +01:00
2026-03-18 17:20:51 -07:00
2026-03-13 14:17:30 +00:00