[PATCH] drm/amd/powerplay: optimize the mclk dpm policy settings

[Quan, Evan]

[AMD Official Use Only - Internal Distribution Only]

Reviewed-by: Evan Quan <evan.quan at amd.com>

-----Original Message-----
From: Alex Deucher <alexdeucher at gmail.com>
Sent: Friday, July 31, 2020 2:17 AM
To: amd-gfx at lists.freedesktop.org
Cc: Quan, Evan <Evan.Quan at amd.com>; Deucher, Alexander <Alexander.Deucher at amd.com>
Subject: [PATCH] drm/amd/powerplay: optimize the mclk dpm policy settings

From: Evan Quan <evan.quan at amd.com>

Different mclk dpm policy will be applied based on the VRAM width.

Signed-off-by: Evan Quan <evan.quan at amd.com>
Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
---
 drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c | 16 +++++++++++++---
 1 file changed, 13 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c
index ffe05b7cc1f0..b81719433017 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c
@@ -1585,9 +1585,19 @@ static void smu7_init_dpm_defaults(struct pp_hwmgr *hwmgr)
 data->current_profile_setting.sclk_down_hyst = 100;
 data->current_profile_setting.sclk_activity = SMU7_SCLK_TARGETACTIVITY_DFLT;
 data->current_profile_setting.bupdate_mclk = 1;
-data->current_profile_setting.mclk_up_hyst = 0;
-data->current_profile_setting.mclk_down_hyst = 100;
-data->current_profile_setting.mclk_activity = SMU7_MCLK_TARGETACTIVITY_DFLT;
+if (adev->gmc.vram_width == 256) {
+data->current_profile_setting.mclk_up_hyst = 10;
+data->current_profile_setting.mclk_down_hyst = 60;
+data->current_profile_setting.mclk_activity = 25;
+} else if (adev->gmc.vram_width == 128) {
+data->current_profile_setting.mclk_up_hyst = 5;
+data->current_profile_setting.mclk_down_hyst = 16;
+data->current_profile_setting.mclk_activity = 20;
+} else if (adev->gmc.vram_width == 64) {
+data->current_profile_setting.mclk_up_hyst = 3;
+data->current_profile_setting.mclk_down_hyst = 16;
+data->current_profile_setting.mclk_activity = 20;
+}
 hwmgr->workload_mask = 1 << hwmgr->workload_prority[PP_SMC_POWER_PROFILE_FULLSCREEN3D];
 hwmgr->power_profile_mode = PP_SMC_POWER_PROFILE_FULLSCREEN3D;
 hwmgr->default_power_profile_mode = PP_SMC_POWER_PROFILE_FULLSCREEN3D;
--
2.25.4