drm/radeon: don't use PACKET2 on CIK

It is said to cause hangs.

Signed-off-by: Marek Olšák <marek.olsak@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/radeon/cik.c b/drivers/gpu/drm/radeon/cik.c
index 2ddb01d..afee68a 100644 (file)
--- a/drivers/gpu/drm/radeon/cik.c
+++ b/drivers/gpu/drm/radeon/cik.c
@@ -7188,7 +7188,7 @@ static int cik_startup(struct radeon_device *rdev)
        ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
        r = radeon_ring_init(rdev, ring, ring->ring_size, RADEON_WB_CP_RPTR_OFFSET,
                             CP_RB0_RPTR, CP_RB0_WPTR,
-                            RADEON_CP_PACKET2);
+                            PACKET3(PACKET3_NOP, 0x3FFF));
        if (r)
                return r;