drm/msm/dpu: Add UBWC support for RGB8888 formats

Hardware only natively supports BGR8888 UBWC.
UBWC support for RGB8888 can be had by pretending
that the buffer is BGR.
Signed-off-by: Fritz Koenig <frkoenig@google.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Rob Clark <robdclark@chromium.org>

drivers/gpu/drm/msm/disp/dpu1/dpu_formats.c

@@ -489,12 +489,28 @@ static const struct dpu_format dpu_format_map_ubwc[] = {
 		true, 4, DPU_FORMAT_FLAG_COMPRESSED,
 		DPU_FETCH_UBWC, 2, DPU_TILE_HEIGHT_UBWC),
 
+	/* ARGB8888 and ABGR8888 purposely have the same color
+	 * ordering.  The hardware only supports ABGR8888 UBWC
+	 * natively.
+	 */
+	INTERLEAVED_RGB_FMT_TILED(ARGB8888,
+		COLOR_8BIT, COLOR_8BIT, COLOR_8BIT, COLOR_8BIT,
+		C2_R_Cr, C0_G_Y, C1_B_Cb, C3_ALPHA, 4,
+		true, 4, DPU_FORMAT_FLAG_COMPRESSED,
+		DPU_FETCH_UBWC, 2, DPU_TILE_HEIGHT_UBWC),
+
 	INTERLEAVED_RGB_FMT_TILED(XBGR8888,
 		COLOR_8BIT, COLOR_8BIT, COLOR_8BIT, COLOR_8BIT,
 		C2_R_Cr, C0_G_Y, C1_B_Cb, C3_ALPHA, 4,
 		false, 4, DPU_FORMAT_FLAG_COMPRESSED,
 		DPU_FETCH_UBWC, 2, DPU_TILE_HEIGHT_UBWC),
 
+	INTERLEAVED_RGB_FMT_TILED(XRGB8888,
+		COLOR_8BIT, COLOR_8BIT, COLOR_8BIT, COLOR_8BIT,
+		C2_R_Cr, C0_G_Y, C1_B_Cb, C3_ALPHA, 4,
+		false, 4, DPU_FORMAT_FLAG_COMPRESSED,
+		DPU_FETCH_UBWC, 2, DPU_TILE_HEIGHT_UBWC),
+
 	INTERLEAVED_RGB_FMT_TILED(ABGR2101010,
 		COLOR_8BIT, COLOR_8BIT, COLOR_8BIT, COLOR_8BIT,
 		C2_R_Cr, C0_G_Y, C1_B_Cb, C3_ALPHA, 4,
@@ -550,7 +566,9 @@ static int _dpu_format_get_media_color_ubwc(const struct dpu_format *fmt)
 {
 	static const struct dpu_media_color_map dpu_media_ubwc_map[] = {
 		{DRM_FORMAT_ABGR8888, COLOR_FMT_RGBA8888_UBWC},
+		{DRM_FORMAT_ARGB8888, COLOR_FMT_RGBA8888_UBWC},
 		{DRM_FORMAT_XBGR8888, COLOR_FMT_RGBA8888_UBWC},
+		{DRM_FORMAT_XRGB8888, COLOR_FMT_RGBA8888_UBWC},
 		{DRM_FORMAT_ABGR2101010, COLOR_FMT_RGBA1010102_UBWC},
 		{DRM_FORMAT_XBGR2101010, COLOR_FMT_RGBA1010102_UBWC},
 		{DRM_FORMAT_BGR565, COLOR_FMT_RGB565_UBWC},

drivers/gpu/drm/msm/disp/dpu1/dpu_hw_catalog_format.h

@@ -6,7 +6,9 @@
 
 static const uint32_t qcom_compressed_supported_formats[] = {
 	DRM_FORMAT_ABGR8888,
+	DRM_FORMAT_ARGB8888,
 	DRM_FORMAT_XBGR8888,
+	DRM_FORMAT_XRGB8888,
 	DRM_FORMAT_BGR565,
 };