This is a note to let you know that I've just added the patch titled
cpufreq: amd-pstate: Fix min_perf assignment in amd_pstate_adjust_perf()
to the 6.7-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
cpufreq-amd-pstate-fix-min_perf-assignment-in-amd_ps.patch
and it can be found in the queue-6.7 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 85e7b2c740fea6f3f1d90f4bd998a6b194bd95bb
Author: Tor Vic <torvic9@xxxxxxxxxxx>
Date: Fri Feb 9 16:42:26 2024 +0100
cpufreq: amd-pstate: Fix min_perf assignment in amd_pstate_adjust_perf()
[ Upstream commit b26ffbf800ae3c8d01bdf90d9cd8a37e1606ff06 ]
In the function amd_pstate_adjust_perf(), the 'min_perf' variable is set
to 'highest_perf' instead of 'lowest_perf'.
Fixes: 1d215f0319c2 ("cpufreq: amd-pstate: Add fast switch function for AMD P-State")
Reported-by: Oleksandr Natalenko <oleksandr@xxxxxxxxxxxxxx>
Reviewed-by: Perry Yuan <Perry.Yuan@xxxxxxx>
Signed-off-by: Tor Vic <torvic9@xxxxxxxxxxx>
Reviewed-by: Mario Limonciello <mario.limonciello@xxxxxxx>
Cc: 6.1+ <stable@xxxxxxxxxxxxxxx> # 6.1+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@xxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/cpufreq/amd-pstate.c b/drivers/cpufreq/amd-pstate.c
index 1791d37fbc53c..07f3419954396 100644
--- a/drivers/cpufreq/amd-pstate.c
+++ b/drivers/cpufreq/amd-pstate.c
@@ -570,7 +570,7 @@ static void amd_pstate_adjust_perf(unsigned int cpu,
if (target_perf < capacity)
des_perf = DIV_ROUND_UP(cap_perf * target_perf, capacity);
- min_perf = READ_ONCE(cpudata->highest_perf);
+ min_perf = READ_ONCE(cpudata->lowest_perf);
if (_min_perf < capacity)
min_perf = DIV_ROUND_UP(cap_perf * _min_perf, capacity);
