drm/radeon/kms: add backend map workaround for barts

Same as Cypress.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
index 6a73867cf25c431f1acbfd4dc2ee40c452e283ad..c40e5ad251dd4da6b9461db08bf5b503372f304d 100644 (file)
--- a/drivers/gpu/drm/radeon/evergreen.c
+++ b/drivers/gpu/drm/radeon/evergreen.c
@@ -1862,6 +1862,7 @@ static void evergreen_gpu_init(struct radeon_device *rdev)
                switch (rdev->family) {
                case CHIP_CYPRESS:
                case CHIP_HEMLOCK:
+               case CHIP_BARTS:
                        gb_backend_map = 0x66442200;
                        break;
                case CHIP_JUNIPER: