From: Alex Deucher <alexander.deucher@amd.com>
Date: Mon, 17 Apr 2017 16:32:12 -0400
Subject: drm/amdgpu/gfx9: clear the compute ring on reset
Git-commit: b98724db7f9bb7b0b0e253f903249894f09c01ee
Patch-mainline: v4.13-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

To be consistent with gfx8.

Reviewed-by: monk liu <monk.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c
@@ -2149,6 +2149,7 @@ static int gfx_v9_0_kiq_init_queue(struc
 
 		/* reset ring buffer */
 		ring->wptr = 0;
+		amdgpu_ring_clear_ring(ring);
 
 		if (is_kiq) {
 		    mutex_lock(&adev->srbm_mutex);