From: Mario Limonciello <superm1@kernel.org>
To: "Gautham R . Shenoy" <gautham.shenoy@amd.com>,
Perry Yuan <perry.yuan@amd.com>
Cc: Dhananjay Ugwekar <Dhananjay.Ugwekar@amd.com>,
linux-kernel@vger.kernel.org (open list:X86 ARCHITECTURE (32-BIT
AND 64-BIT)),
linux-pm@vger.kernel.org (open list:CPU FREQUENCY SCALING
FRAMEWORK), Mario Limonciello <mario.limonciello@amd.com>
Subject: [PATCH 01/14] cpufreq/amd-pstate: Show a warning when a CPU fails to setup
Date: Thu, 6 Feb 2025 15:56:46 -0600 [thread overview]
Message-ID: <20250206215659.3350066-2-superm1@kernel.org> (raw)
In-Reply-To: <20250206215659.3350066-1-superm1@kernel.org>
From: Mario Limonciello <mario.limonciello@amd.com>
I came across a system that MSR_AMD_CPPC_CAP1 for some CPUs isn't
populated. This is an unexpected behavior that is most likely a
BIOS bug. In the event it happens I'd like users to report bugs
to properly root cause and get this fixed.
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
---
drivers/cpufreq/amd-pstate.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/cpufreq/amd-pstate.c b/drivers/cpufreq/amd-pstate.c
index f425fb7ec77d7..573643654e8d6 100644
--- a/drivers/cpufreq/amd-pstate.c
+++ b/drivers/cpufreq/amd-pstate.c
@@ -1034,6 +1034,7 @@ static int amd_pstate_cpu_init(struct cpufreq_policy *policy)
free_cpudata2:
freq_qos_remove_request(&cpudata->req[0]);
free_cpudata1:
+ pr_warn("Failed to initialize CPU %d: %d\n", policy->cpu, ret);
kfree(cpudata);
return ret;
}
@@ -1527,6 +1528,7 @@ static int amd_pstate_epp_cpu_init(struct cpufreq_policy *policy)
return 0;
free_cpudata1:
+ pr_warn("Failed to initialize CPU %d: %d\n", policy->cpu, ret);
kfree(cpudata);
return ret;
}
--
2.43.0
next prev parent reply other threads:[~2025-02-06 21:57 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-02-06 21:56 [PATCH 00/14] amd-pstate cleanups Mario Limonciello
2025-02-06 21:56 ` Mario Limonciello [this message]
2025-02-10 11:59 ` [PATCH 01/14] cpufreq/amd-pstate: Show a warning when a CPU fails to setup Dhananjay Ugwekar
2025-02-10 13:50 ` Gautham R. Shenoy
2025-02-10 15:13 ` Mario Limonciello
2025-02-06 21:56 ` [PATCH 02/14] cpufreq/amd-pstate: Drop min and max cached frequencies Mario Limonciello
2025-02-07 10:44 ` Dhananjay Ugwekar
2025-02-07 16:15 ` Mario Limonciello
2025-02-06 21:56 ` [PATCH 03/14] cpufreq/amd-pstate: Move perf values into a union Mario Limonciello
2025-02-10 13:38 ` Dhananjay Ugwekar
2025-02-11 22:14 ` Mario Limonciello
2025-02-12 6:31 ` Dhananjay Ugwekar
2025-02-12 22:03 ` Mario Limonciello
2025-02-06 21:56 ` [PATCH 04/14] cpufreq/amd-pstate: Overhaul locking Mario Limonciello
2025-02-11 5:02 ` Dhananjay Ugwekar
2025-02-11 21:54 ` Mario Limonciello
2025-02-12 5:15 ` Dhananjay Ugwekar
2025-02-12 22:05 ` Mario Limonciello
2025-02-06 21:56 ` [PATCH 05/14] cpufreq/amd-pstate: Drop `cppc_cap1_cached` Mario Limonciello
2025-02-11 5:46 ` Dhananjay Ugwekar
2025-02-06 21:56 ` [PATCH 06/14] cpufreq/amd-pstate-ut: Use _free macro to free put policy Mario Limonciello
2025-02-11 5:58 ` Dhananjay Ugwekar
2025-02-06 21:56 ` [PATCH 07/14] cpufreq/amd-pstate: Replace all AMD_CPPC_* macros with masks Mario Limonciello
2025-02-11 6:16 ` Dhananjay Ugwekar
2025-02-11 18:31 ` Mario Limonciello
2025-02-06 21:56 ` [PATCH 08/14] cpufreq/amd-pstate: Cache CPPC request in shared mem case too Mario Limonciello
2025-02-11 9:18 ` Dhananjay Ugwekar
2025-02-06 21:56 ` [PATCH 09/14] cpufreq/amd-pstate: Move all EPP tracing into *_update_perf and *_set_epp functions Mario Limonciello
2025-02-12 6:39 ` Dhananjay Ugwekar
2025-02-06 21:56 ` [PATCH 10/14] cpufreq/amd-pstate: Update cppc_req_cached for shared mem EPP writes Mario Limonciello
2025-02-11 13:01 ` Dhananjay Ugwekar
2025-02-06 21:56 ` [PATCH 11/14] cpufreq/amd-pstate: Drop debug statements for policy setting Mario Limonciello
2025-02-11 13:03 ` Dhananjay Ugwekar
2025-02-06 21:56 ` [PATCH 12/14] cpufreq/amd-pstate: Cache a pointer to policy in cpudata Mario Limonciello
2025-02-11 13:13 ` Dhananjay Ugwekar
2025-02-11 19:17 ` Mario Limonciello
2025-02-12 3:52 ` Dhananjay Ugwekar
2025-02-06 21:56 ` [PATCH 13/14] cpufreq/amd-pstate: Rework CPPC enabling Mario Limonciello
2025-02-13 4:42 ` Dhananjay Ugwekar
2025-02-06 21:56 ` [PATCH 14/14] cpufreq/amd-pstate: Stop caching EPP Mario Limonciello
2025-02-11 13:27 ` Dhananjay Ugwekar
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