Commit 2a8536f6 authored Jun 05, 2018 by Jeykumar Sankaran Committed by Sean Paul Jul 26, 2018

drm: add msm compressed format modifiers



Qualcomm Snapdragon chipsets uses compressed format
to optimize BW across multiple IP's. This change adds
needed modifier support in drm for a simple 4x4 tile
based compressed variants of base formats.

Changes in v3:
- Removed duplicate entry for DRM_FORMAT_MOD_QCOM_COMPRESSED (Rob Clark)
Changes in v4:
- Remove all modifiers aside from COMPRESSED, this includes tiled and
  10-bit

Signed-off-by: Jeykumar Sankaran <jsanka@codeaurora.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>

parent ea107a18

include/uapi/drm/drm_fourcc.h

+13 −0

Original line number	Diff line number	Diff line
		@@ -299,6 +299,19 @@ extern "C" {
		*/
		#define DRM_FORMAT_MOD_SAMSUNG_64_32_TILE fourcc_mod_code(SAMSUNG, 1)

		/*
		* Qualcomm Compressed Format
		*
		* Refers to a compressed variant of the base format that is compressed.
		* Implementation may be platform and base-format specific.
		*
		* Each macrotile consists of m x n (mostly 4 x 4) tiles.
		* Pixel data pitch/stride is aligned with macrotile width.
		* Pixel data height is aligned with macrotile height.
		* Entire pixel data buffer is aligned with 4k(bytes).
		*/
		#define DRM_FORMAT_MOD_QCOM_COMPRESSED fourcc_mod_code(QCOM, 1)

		/* Vivante framebuffer modifiers */

		/*