[PATCH] drm/radeon/6xx: disable use of the DMA ring for ttm bo moves

[alexdeuc...@gmail.com]

From: Alex Deucher <alexander.deuc...@amd.com>

Seems to fall over in some cases with heavy memory thrashing on
6xx.  Needs more investigation after the holidays, disable for
now.

Cc: Markus Trippelsdorf <markus at trippelsdorf.de>
Cc: Borislav Petkov <bp at alien8.de>
Signed-off-by: Alex Deucher <alexander.deucher at amd.com>
---
 drivers/gpu/drm/radeon/radeon_asic.c |    8 ++++----
 1 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/radeon/radeon_asic.c 
b/drivers/gpu/drm/radeon/radeon_asic.c
index 596bcbe..c66b92d 100644
--- a/drivers/gpu/drm/radeon/radeon_asic.c
+++ b/drivers/gpu/drm/radeon/radeon_asic.c
@@ -974,8 +974,8 @@ static struct radeon_asic r600_asic = {
                .blit_ring_index = RADEON_RING_TYPE_GFX_INDEX,
                .dma = &r600_copy_dma,
                .dma_ring_index = R600_RING_TYPE_DMA_INDEX,
-               .copy = &r600_copy_dma,
-               .copy_ring_index = R600_RING_TYPE_DMA_INDEX,
+               .copy = &r600_copy_blit,
+               .copy_ring_index = RADEON_RING_TYPE_GFX_INDEX,
        },
        .surface = {
                .set_reg = r600_set_surface_reg,
@@ -1058,8 +1058,8 @@ static struct radeon_asic rs780_asic = {
                .blit_ring_index = RADEON_RING_TYPE_GFX_INDEX,
                .dma = &r600_copy_dma,
                .dma_ring_index = R600_RING_TYPE_DMA_INDEX,
-               .copy = &r600_copy_dma,
-               .copy_ring_index = R600_RING_TYPE_DMA_INDEX,
+               .copy = &r600_copy_blit,
+               .copy_ring_index = RADEON_RING_TYPE_GFX_INDEX,
        },
        .surface = {
                .set_reg = r600_set_surface_reg,
-- 
1.7.7.5