From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) by gabe.freedesktop.org (Postfix) with ESMTPS id 6287710E77F for ; Fri, 25 Feb 2022 05:09:28 +0000 (UTC) From: Jeevan B To: igt-dev@lists.freedesktop.org Date: Fri, 25 Feb 2022 10:38:45 +0530 Message-Id: <20220225050853.8349-3-jeevan.b@intel.com> In-Reply-To: <20220225050853.8349-1-jeevan.b@intel.com> References: <20220225050853.8349-1-jeevan.b@intel.com> Subject: [igt-dev] [PATCH i-g-t 02/10] include/drm-uapi: Introduce new Tile 4 format List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: juha-pekka.heikkila@intel.com, petri.latvala@intel.com Errors-To: igt-dev-bounces@lists.freedesktop.org Sender: "igt-dev" List-ID: This tiling layout uses 4KB tiles in a row-major layout. It has the same shape as Tile Y at two granularities: 4KB (128B x 32) and 64B (16B x 4). It only differs from Tile Y at the 256B granularity in between. At this granularity, Tile Y has a shape of 16B x 32 rows, but this tiling has a shape of 64B x 8 rows. Reference: https://cgit.freedesktop.org/drm/drm-tip/commit/?id=c6e7deb0f092616bd8cb19e8c436b212c64daaab Signed-off-by: Jeevan B --- include/drm-uapi/drm_fourcc.h | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/include/drm-uapi/drm_fourcc.h b/include/drm-uapi/drm_fourcc.h index 91b6a0fd..318b50fa 100644 --- a/include/drm-uapi/drm_fourcc.h +++ b/include/drm-uapi/drm_fourcc.h @@ -559,6 +559,17 @@ extern "C" { */ #define I915_FORMAT_MOD_Y_TILED_GEN12_RC_CCS_CC fourcc_mod_code(INTEL, 8) +/* + * Intel Tile 4 layout + * + * This is a tiled layout using 4KB tiles in a row-major layout. It has the same + * shape as Tile Y at two granularities: 4KB (128B x 32) and 64B (16B x 4). It + * only differs from Tile Y at the 256B granularity in between. At this + * granularity, Tile Y has a shape of 16B x 32 rows, but this tiling has a shape + * of 64B x 8 rows. + */ +#define I915_FORMAT_MOD_4_TILED fourcc_mod_code(INTEL, 9) + /* * Tiled, NV12MT, grouped in 64 (pixels) x 32 (lines) -sized macroblocks * -- 2.17.1