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cpufreq/amd-pstate: Call cppc_set_epp_perf in the reenable function

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[ Upstream commit 796ff50e127af8362035f87ba29b6b84e2dd9742 ]

The EPP value being set in perf_ctrls.energy_perf is not being propagated
to the shared memory, fix that.

Signed-off-by: Dhananjay Ugwekar <Dhananjay.Ugwekar@amd.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Perry Yuan <perry.yuan@amd.com>
Reviewed-by: Gautham R. Shenoy <gautham.shenoy@amd.com>
Link: https://lore.kernel.org/r/20241023102108.5980-4-Dhananjay.Ugwekar@amd.com
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Stable-dep-of: 3ace20038e19 ("cpufreq/amd-pstate: Fix cpufreq_policy ref counting")
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Dhananjay Ugwekar
2024-10-23 10:21:10 +00:00
committed by Greg Kroah-Hartman
parent 86f563c743
commit 31c1cc82da
1 changed files with 4 additions and 2 deletions
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drivers/cpufreq/amd-pstate.c
+4 -2
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@@ -1594,8 +1594,9 @@ static void amd_pstate_epp_reenable(struct amd_cpudata *cpudata)
wrmsrl_on_cpu(cpudata->cpu, MSR_AMD_CPPC_REQ, value);
} else {
perf_ctrls.max_perf = max_perf;
perf_ctrls.energy_perf = AMD_CPPC_ENERGY_PERF_PREF(cpudata->epp_cached);
cppc_set_perf(cpudata->cpu, &perf_ctrls);
perf_ctrls.energy_perf = AMD_CPPC_ENERGY_PERF_PREF(cpudata->epp_cached);
cppc_set_epp_perf(cpudata->cpu, &perf_ctrls, 1);
}
}
@@ -1636,8 +1637,9 @@ static void amd_pstate_epp_offline(struct cpufreq_policy *policy)
} else {
perf_ctrls.desired_perf = 0;
perf_ctrls.max_perf = min_perf;
perf_ctrls.energy_perf = AMD_CPPC_ENERGY_PERF_PREF(HWP_EPP_BALANCE_POWERSAVE);
cppc_set_perf(cpudata->cpu, &perf_ctrls);
perf_ctrls.energy_perf = AMD_CPPC_ENERGY_PERF_PREF(HWP_EPP_BALANCE_POWERSAVE);
cppc_set_epp_perf(cpudata->cpu, &perf_ctrls, 1);
}
mutex_unlock(&amd_pstate_limits_lock);
}