drm/radeon/kms: Add crtc tiling setup support for evergreen

Needed for scanning out of a tiled buffer.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c
index 3b8f087..ec70234 100644
--- a/drivers/gpu/drm/radeon/atombios_crtc.c
+++ b/drivers/gpu/drm/radeon/atombios_crtc.c
@@ -862,6 +862,11 @@
 		return -EINVAL;
 	}
 
+	if (tiling_flags & RADEON_TILING_MACRO)
+		fb_format |= EVERGREEN_GRPH_ARRAY_MODE(EVERGREEN_GRPH_ARRAY_2D_TILED_THIN1);
+	else if (tiling_flags & RADEON_TILING_MICRO)
+		fb_format |= EVERGREEN_GRPH_ARRAY_MODE(EVERGREEN_GRPH_ARRAY_1D_TILED_THIN1);
+
 	switch (radeon_crtc->crtc_id) {
 	case 0:
 		WREG32(AVIVO_D1VGA_CONTROL, 0);