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 <[email protected]>
Acked-by: Alex Deucher <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>

diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c
index 0519338e0e5e1d31a9c543863f470be51d0b1872..203ef10cafdc8d52df399408b677c0963cda5f86 100644 (file)
--- 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!",