Commit 796ff50e authored by Dhananjay Ugwekar's avatar Dhananjay Ugwekar Committed by Mario Limonciello
Browse files

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



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

Signed-off-by: default avatarDhananjay Ugwekar <Dhananjay.Ugwekar@amd.com>
Reviewed-by: default avatarMario Limonciello <mario.limonciello@amd.com>
Reviewed-by: default avatarPerry Yuan <perry.yuan@amd.com>
Reviewed-by: default avatarGautham R. Shenoy <gautham.shenoy@amd.com>
Link: https://lore.kernel.org/r/20241023102108.5980-4-Dhananjay.Ugwekar@amd.com


Signed-off-by: default avatarMario Limonciello <mario.limonciello@amd.com>
parent 73070a91

drivers/cpufreq/amd-pstate.c

+4 −2
Original line number Diff line number Diff line
@@ -1616,8 +1616,9 @@ 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);

	}

}
@@ -1658,8 +1659,9 @@ 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);

}