From ac21807e2d9cd5124c5e4d5b77744857aa8541b4 Mon Sep 17 00:00:00 2001
From: Rob Clark <robdclark@chromium.org>
Date: Sat, 4 Sep 2021 10:06:03 -0700
Subject: drm/fourcc: Add QCOM tiled modifiers
Git-commit: 651877176c0846616add00f50b719ea6d59dff8d
Patch-mainline: v5.19-rc1
References: jsc#PED-1166 jsc#PED-1168 jsc#PED-1170 jsc#PED-1218 jsc#PED-1220 jsc#PED-1222 jsc#PED-1223 jsc#PED-1225

These are mainly used internally in mesa, although I believe the display
should be able to scan out the TILED3 format.  Currently we define this
modifier internally in mesa for use with modifier based allocation.  But
we can get rid of that hack if we define the modfiers properly.

Signed-off-by: Rob Clark <robdclark@chromium.org>
Link: https://lore.kernel.org/r/20210904170603.1739137-1-robdclark@gmail.com
Signed-off-by: Rob Clark <robdclark@chromium.org>
Acked-by: Patrik Jakobsson <pjakobsson@suse.de>
---
 include/uapi/drm/drm_fourcc.h | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/include/uapi/drm/drm_fourcc.h b/include/uapi/drm/drm_fourcc.h
index e5074162bcdd..f1972154a594 100644
--- a/include/uapi/drm/drm_fourcc.h
+++ b/include/uapi/drm/drm_fourcc.h
@@ -656,6 +656,28 @@ extern "C" {
  */
 #define DRM_FORMAT_MOD_QCOM_COMPRESSED	fourcc_mod_code(QCOM, 1)
 
+/*
+ * Qualcomm Tiled Format
+ *
+ * Similar to DRM_FORMAT_MOD_QCOM_COMPRESSED but not 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_TILED3	fourcc_mod_code(QCOM, 3)
+
+/*
+ * Qualcomm Alternate Tiled Format
+ *
+ * Alternate tiled format typically only used within GMEM.
+ * Implementation may be platform and base-format specific.
+ */
+#define DRM_FORMAT_MOD_QCOM_TILED2	fourcc_mod_code(QCOM, 2)
+
+
 /* Vivante framebuffer modifiers */
 
 /*
-- 
2.38.1