drm/radeon/kms: set dma_copy to NULL for r6xx+

No need to assign the same copy callback for both
copy blit and dma.
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

drivers/gpu/drm/radeon/radeon_asic.c

@@ -625,7 +625,7 @@ static struct radeon_asic r600_asic = {
 	.fence_ring_emit = &r600_fence_ring_emit,
 	.cs_parse = &r600_cs_parse,
 	.copy_blit = &r600_copy_blit,
-	.copy_dma = &r600_copy_blit,
+	.copy_dma = NULL,
 	.copy = &r600_copy_blit,
 	.get_engine_clock = &radeon_atom_get_engine_clock,
 	.set_engine_clock = &radeon_atom_set_engine_clock,
@@ -672,7 +672,7 @@ static struct radeon_asic rs780_asic = {
 	.fence_ring_emit = &r600_fence_ring_emit,
 	.cs_parse = &r600_cs_parse,
 	.copy_blit = &r600_copy_blit,
-	.copy_dma = &r600_copy_blit,
+	.copy_dma = NULL,
 	.copy = &r600_copy_blit,
 	.get_engine_clock = &radeon_atom_get_engine_clock,
 	.set_engine_clock = &radeon_atom_set_engine_clock,
@@ -719,7 +719,7 @@ static struct radeon_asic rv770_asic = {
 	.fence_ring_emit = &r600_fence_ring_emit,
 	.cs_parse = &r600_cs_parse,
 	.copy_blit = &r600_copy_blit,
-	.copy_dma = &r600_copy_blit,
+	.copy_dma = NULL,
 	.copy = &r600_copy_blit,
 	.get_engine_clock = &radeon_atom_get_engine_clock,
 	.set_engine_clock = &radeon_atom_set_engine_clock,
@@ -766,7 +766,7 @@ static struct radeon_asic evergreen_asic = {
 	.fence_ring_emit = &r600_fence_ring_emit,
 	.cs_parse = &evergreen_cs_parse,
 	.copy_blit = &evergreen_copy_blit,
-	.copy_dma = &evergreen_copy_blit,
+	.copy_dma = NULL,
 	.copy = &evergreen_copy_blit,
 	.get_engine_clock = &radeon_atom_get_engine_clock,
 	.set_engine_clock = &radeon_atom_set_engine_clock,
@@ -813,7 +813,7 @@ static struct radeon_asic sumo_asic = {
 	.fence_ring_emit = &r600_fence_ring_emit,
 	.cs_parse = &evergreen_cs_parse,
 	.copy_blit = &evergreen_copy_blit,
-	.copy_dma = &evergreen_copy_blit,
+	.copy_dma = NULL,
 	.copy = &evergreen_copy_blit,
 	.get_engine_clock = &radeon_atom_get_engine_clock,
 	.set_engine_clock = &radeon_atom_set_engine_clock,
@@ -860,7 +860,7 @@ static struct radeon_asic btc_asic = {
 	.fence_ring_emit = &r600_fence_ring_emit,
 	.cs_parse = &evergreen_cs_parse,
 	.copy_blit = &evergreen_copy_blit,
-	.copy_dma = &evergreen_copy_blit,
+	.copy_dma = NULL,
 	.copy = &evergreen_copy_blit,
 	.get_engine_clock = &radeon_atom_get_engine_clock,
 	.set_engine_clock = &radeon_atom_set_engine_clock,
@@ -907,7 +907,7 @@ static struct radeon_asic cayman_asic = {
 	.fence_ring_emit = &r600_fence_ring_emit,
 	.cs_parse = &evergreen_cs_parse,
 	.copy_blit = &evergreen_copy_blit,
-	.copy_dma = &evergreen_copy_blit,
+	.copy_dma = NULL,
 	.copy = &evergreen_copy_blit,
 	.get_engine_clock = &radeon_atom_get_engine_clock,
 	.set_engine_clock = &radeon_atom_set_engine_clock,