36 lines
1.2 KiB
Diff
36 lines
1.2 KiB
Diff
From a0233b8c2c01e98ddeb2e80768d4c7172311b200 Mon Sep 17 00:00:00 2001
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From: Mario Limonciello <mario.limonciello@amd.com>
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Date: Wed, 26 Feb 2025 01:49:17 -0600
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Subject: cpufreq/amd-pstate: Show a warning when a CPU fails to setup
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I came across a system that MSR_AMD_CPPC_CAP1 for some CPUs isn't
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populated. This is an unexpected behavior that is most likely a
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BIOS bug. In the event it happens I'd like users to report bugs
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to properly root cause and get this fixed.
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Reviewed-by: Gautham R. Shenoy <gautham.shenoy@amd.com>
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Reviewed-by: Dhananjay Ugwekar <dhananjay.ugwekar@amd.com>
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Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
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---
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drivers/cpufreq/amd-pstate.c | 2 ++
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1 file changed, 2 insertions(+)
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--- a/drivers/cpufreq/amd-pstate.c
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+++ b/drivers/cpufreq/amd-pstate.c
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@@ -1028,6 +1028,7 @@ static int amd_pstate_cpu_init(struct cp
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free_cpudata2:
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freq_qos_remove_request(&cpudata->req[0]);
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free_cpudata1:
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+ pr_warn("Failed to initialize CPU %d: %d\n", policy->cpu, ret);
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kfree(cpudata);
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return ret;
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}
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@@ -1521,6 +1522,7 @@ static int amd_pstate_epp_cpu_init(struc
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return 0;
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free_cpudata1:
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+ pr_warn("Failed to initialize CPU %d: %d\n", policy->cpu, ret);
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kfree(cpudata);
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return ret;
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}
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