From: Mario Limonciello <superm1@kernel.org>
To: Christian Loehle <christian.loehle@arm.com>,
"Rafael J . Wysocki" <rafael@kernel.org>,
Viresh Kumar <viresh.kumar@linaro.org>,
K Prateek Nayak <kprateek.nayak@amd.com>
Cc: "Gautham R . Shenoy" <gautham.shenoy@amd.com>,
Perry Yuan <perry.yuan@amd.com>, Huang Rui <ray.huang@amd.com>,
Dhananjay Ugwekar <Dhananjay.Ugwekar@amd.com>,
linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH 0/2] cpufreq/amd-pstate register write fixes
Date: Thu, 29 Oct 2026 14:35:50 -0500 [thread overview]
Message-ID: <e8490d6f-f445-42b1-b5fc-f07e988ad6ec@kernel.org> (raw)
In-Reply-To: <20261029121945.854675-1-christian.loehle@arm.com>
On 10/29/26 07:19, Christian Loehle wrote:
> Two issues that popped up when trying to integrate an AMD machine into
> my testing for acpi-cppc, in particular for this (otherwise
> unrelated) patch:
> https://lore.kernel.org/lkml/20261020121846.691218-2-sumitg@nvidia.com/
>
> The first is rather straightforward, I think the case was just not
> considered during the refactor of the Fixes commit.
> The second is part of the resume handling and was introduced when
> that restored the register values (DESIRED derived from policy->cur).
> My platform seems to handle it well, but it's still strange
> behaviour, so why not fix it.
> (Also of course the resume value will generally be overwritten and
> therefore 'fixed' anyway.)
>
> Christian Loehle (2):
> cpufreq/amd-pstate: Keep minimum requests within policy limits
> cpufreq/amd-pstate: Clamp desired perf on resume
>
> drivers/cpufreq/amd-pstate.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
>
> base-commit: c339f4010dea8b0d754f84ace70cd1b089878ef8
Thanks for the fixes. I'll pick them up for 7.4-rc2.
Acked-by: Mario Limociello (AMD) <superm1@kernel.org>
next prev parent reply other threads:[~2026-10-29 19:35 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-29 12:19 Christian Loehle
2026-10-29 12:19 ` [PATCH 1/2] cpufreq/amd-pstate: Keep minimum requests within policy limits Christian Loehle
2026-10-29 12:19 ` [PATCH 2/2] cpufreq/amd-pstate: Clamp desired perf on resume Christian Loehle
2026-10-29 19:35 ` Mario Limonciello [this message]
2026-10-30 3:11 ` [PATCH 0/2] cpufreq/amd-pstate register write fixes K Prateek Nayak
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