drm/amd/powerplay: unload mp1 for Arcturus RAS baco reset

This sequence is recommended by PMFW team for the baco reset
with PMFW reloaded. And it seems able to address the random
failure seen on Arcturus.

Signed-off-by: Evan Quan <[email protected]>
Reviewed-by: Feifei Xu <[email protected]>
Reviewed-by: John Clements <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>

Author: Evan Quan

drivers/gpu/drm/amd/powerplay/smu_v11_0.c

@@ -1718,6 +1718,12 @@ int smu_v11_0_baco_set_state(struct smu_context *smu, enum smu_baco_state state)
 		if (ret)
 			goto out;
 
+		if (ras && ras->supported) {
+			ret = smu_send_smc_msg(smu, SMU_MSG_PrepareMp1ForUnload, NULL);
+			if (ret)
+				goto out;
+		}
+
 		/* clear vbios scratch 6 and 7 for coming asic reinit */
 		WREG32(adev->bios_scratch_reg_offset + 6, 0);
 		WREG32(adev->bios_scratch_reg_offset + 7, 0);