drm/radeon/kms: gfx init fixes for r6xx/r7xx

This fixes some issues with the last gfx init patch.

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 40416c0..68e6f43 100644
--- a/drivers/gpu/drm/radeon/r600_cp.c
+++ b/drivers/gpu/drm/radeon/r600_cp.c
@@ -1548,10 +1548,13 @@
 
 	RADEON_WRITE(R600_CC_RB_BACKEND_DISABLE,      cc_rb_backend_disable);
 	RADEON_WRITE(R600_CC_GC_SHADER_PIPE_CONFIG,   cc_gc_shader_pipe_config);
+	RADEON_WRITE(R600_GC_USER_SHADER_PIPE_CONFIG, cc_gc_shader_pipe_config);
 
 	RADEON_WRITE(R700_CC_SYS_RB_BACKEND_DISABLE, cc_rb_backend_disable);
 	RADEON_WRITE(R700_CGTS_SYS_TCC_DISABLE, 0);
 	RADEON_WRITE(R700_CGTS_TCC_DISABLE, 0);
+	RADEON_WRITE(R700_CGTS_USER_SYS_TCC_DISABLE, 0);
+	RADEON_WRITE(R700_CGTS_USER_TCC_DISABLE, 0);
 
 	num_qd_pipes =
 		R7XX_MAX_PIPES - r600_count_pipe_bits((cc_gc_shader_pipe_config & R600_INACTIVE_QD_PIPES_MASK) >> 8);