From: Eric Huang <JinHuiEric.Huang@amd.com>
Date: Thu, 19 Oct 2017 14:55:18 -0400
Subject: drm/amd/powerplay: fix performance drop on Vega10
Git-commit: b87079ec7b4d38efee015367315958ce5495ba93
Patch-mainline: v4.15-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166
Setting package power PID to 1 fixes performance drop caused by
updated SMU FW, before DPM is enabled.
Signed-off-by: Eric Huang <JinHuiEric.Huang@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c | 9 +++++++++
1 file changed, 9 insertions(+)
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c
@@ -2879,6 +2879,15 @@ static int vega10_enable_dpm_tasks(struc
"DPM is already running right , skipping re-enablement!",
return 0);
+ if ((data->smu_version == 0x001c2c00) ||
+ (data->smu_version == 0x001c2d00)) {
+ tmp_result = smum_send_msg_to_smc_with_parameter(hwmgr,
+ PPSMC_MSG_UpdatePkgPwrPidAlpha, 1);
+ PP_ASSERT_WITH_CODE(!tmp_result,
+ "Failed to set package power PID!",
+ return tmp_result);
+ }
+
tmp_result = vega10_construct_voltage_tables(hwmgr);
PP_ASSERT_WITH_CODE(!tmp_result,
"Failed to contruct voltage tables!",