[PATCH 1/3] drm/amdgpu/powerplay/vega20: call PrepareMp1ForUnload in power_off_asic

[Alex Deucher]

Needed to make sure the smu is idle when resetting. This fixes
sporatic failures with GPU reset.

Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
---
 drivers/gpu/drm/amd/powerplay/hwmgr/vega20_hwmgr.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/vega20_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/vega20_hwmgr.c
index f27c6fbb192e..e16d6654692f 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/vega20_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/vega20_hwmgr.c
@@ -3764,6 +3764,11 @@ static int vega20_power_off_asic(struct pp_hwmgr *hwmgr)
 			);
 	data->water_marks_bitmap &= ~(WaterMarksLoaded);
 
+	PP_ASSERT_WITH_CODE((result = smum_send_msg_to_smc(hwmgr,
+			PPSMC_MSG_PrepareMp1ForUnload)) == 0,
+			"[PrepareMp1ForUnload] Failed!",
+			return result);
+
 	return result;
 }
 
-- 
2.20.1