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From 79f33d126ac0758c913ff23e6f87a2fafb45a116 Mon Sep 17 00:00:00 2001
From: Eric Huang <JinHuiEric.Huang@amd.com>
Date: Thu, 19 Oct 2017 14:55:18 -0400
Subject: [PATCH 1073/4131] drm/amd/powerplay: fix performance drop on Vega10
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>
---
drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c
index 015f149..18d54bb 100644
--- 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(struct pp_hwmgr *hwmgr)
"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!",
--
2.7.4
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