[PATCH] drm/fourcc: Add Arm 16x16 block modifier

[Raymond Smith <Raymond.Smith@arm.com>]

Add the DRM_FORMAT_MOD_ARM_16X16_BLOCK_U_INTERLEAVED modifier to
denote the 16x16 block u-interleaved format used in Arm Utgard and
Midgard GPUs.

Signed-off-by: Raymond Smith <raymond.smith@arm.com>
---
 include/uapi/drm/drm_fourcc.h | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/include/uapi/drm/drm_fourcc.h b/include/uapi/drm/drm_fourcc.h
index 3feeaa3..8ed7ecf 100644
--- a/include/uapi/drm/drm_fourcc.h
+++ b/include/uapi/drm/drm_fourcc.h
@@ -743,6 +743,16 @@ extern "C" {
 #define AFBC_FORMAT_MOD_BCH     (1ULL << 11)
 
 /*
+ * Arm 16x16 Block U-Interleaved modifier
+ *
+ * This is used by Arm Mali Utgard and Midgard GPUs. It divides the image
+ * into 16x16 pixel blocks. Blocks are stored linearly in order, but pixels
+ * in the block are reordered.
+ */
+#define DRM_FORMAT_MOD_ARM_16X16_BLOCK_U_INTERLEAVED \
+	fourcc_mod_code(ARM, ((1ULL << 55) | 1))
+
+/*
  * Allwinner tiled modifier
  *
  * This tiling mode is implemented by the VPU found on all Allwinner platforms,
-- 
2.7.4