drm/radeon/rv740: fix backend setup
This patch fixes occlusion queries and rendering errors
on rv740 boards. Hardcoding the backend map is not an optimal
solution, but a better fix is being worked on.
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/drivers/gpu/drm/radeon/r600_cp.c b/drivers/gpu/drm/radeon/r600_cp.c
index 6d5a711..75bcf35 100644
--- a/drivers/gpu/drm/radeon/r600_cp.c
+++ b/drivers/gpu/drm/radeon/r600_cp.c
@@ -1428,9 +1428,12 @@
gb_tiling_config |= R600_BANK_SWAPS(1);
- backend_map = r700_get_tile_pipe_to_backend_map(dev_priv->r600_max_tile_pipes,
- dev_priv->r600_max_backends,
- (0xff << dev_priv->r600_max_backends) & 0xff);
+ if ((dev_priv->flags & RADEON_FAMILY_MASK) == CHIP_RV740)
+ backend_map = 0x28;
+ else
+ backend_map = r700_get_tile_pipe_to_backend_map(dev_priv->r600_max_tile_pipes,
+ dev_priv->r600_max_backends,
+ (0xff << dev_priv->r600_max_backends) & 0xff);
gb_tiling_config |= R600_BACKEND_MAP(backend_map);
cc_gc_shader_pipe_config =
diff --git a/drivers/gpu/drm/radeon/rv770.c b/drivers/gpu/drm/radeon/rv770.c
index 5943d56..0302167 100644
--- a/drivers/gpu/drm/radeon/rv770.c
+++ b/drivers/gpu/drm/radeon/rv770.c
@@ -549,9 +549,12 @@
gb_tiling_config |= BANK_SWAPS(1);
- backend_map = r700_get_tile_pipe_to_backend_map(rdev->config.rv770.max_tile_pipes,
- rdev->config.rv770.max_backends,
- (0xff << rdev->config.rv770.max_backends) & 0xff);
+ if (rdev->family == CHIP_RV740)
+ backend_map = 0x28;
+ else
+ backend_map = r700_get_tile_pipe_to_backend_map(rdev->config.rv770.max_tile_pipes,
+ rdev->config.rv770.max_backends,
+ (0xff << rdev->config.rv770.max_backends) & 0xff);
gb_tiling_config |= BACKEND_MAP(backend_map);
cc_gc_shader_pipe_config =