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authorDave Airlie <airlied@redhat.com>2025-11-07 08:21:15 +1000
committerDave Airlie <airlied@redhat.com>2025-11-07 09:14:31 +1000
commitfaf66a71079b5d916028fab51a9b537df7b28b9f (patch)
tree3673814a783baa2d9377296529f1b60371e39418 /include/uapi
parentLinux 6.18-rc4 (diff)
parentdrm/tiny: pixpaper: add explicit dependency on MMU (diff)
downloadlinux-faf66a71079b5d916028fab51a9b537df7b28b9f.tar.gz
linux-faf66a71079b5d916028fab51a9b537df7b28b9f.zip
Merge tag 'drm-misc-fixes-2025-11-06' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-fixes
Short summary of fixes pull: imagination: - kconfig: Fix dependencies nouveau: - Set DMA mask earlier - Advertize correct modifiers for GB20x pixpaper: - kconfig: Fix dependencies sched: - Fix deadlock Signed-off-by: Dave Airlie <airlied@redhat.com> From: Thomas Zimmermann <tzimmermann@suse.de> Link: https://patch.msgid.link/20251106131244.GA155679@2a02-2454-fd5e-fd00-d540-1fd5-75b4-d5e2.dyn6.pyur.net
Diffstat (limited to 'include/uapi')
-rw-r--r--include/uapi/drm/drm_fourcc.h25
1 files changed, 16 insertions, 9 deletions
diff --git a/include/uapi/drm/drm_fourcc.h b/include/uapi/drm/drm_fourcc.h
index ea91aa8afde9..e527b24bd824 100644
--- a/include/uapi/drm/drm_fourcc.h
+++ b/include/uapi/drm/drm_fourcc.h
@@ -979,14 +979,20 @@ extern "C" {
* 2 = Gob Height 8, Turing+ Page Kind mapping
* 3 = Reserved for future use.
*
- * 22:22 s Sector layout. On Tegra GPUs prior to Xavier, there is a further
- * bit remapping step that occurs at an even lower level than the
- * page kind and block linear swizzles. This causes the layout of
- * surfaces mapped in those SOC's GPUs to be incompatible with the
- * equivalent mapping on other GPUs in the same system.
- *
- * 0 = Tegra K1 - Tegra Parker/TX2 Layout.
- * 1 = Desktop GPU and Tegra Xavier+ Layout
+ * 22:22 s Sector layout. There is a further bit remapping step that occurs
+ * 26:27 at an even lower level than the page kind and block linear
+ * swizzles. This causes the bit arrangement of surfaces in memory
+ * to differ subtly, and prevents direct sharing of surfaces between
+ * GPUs with different layouts.
+ *
+ * 0 = Tegra K1 - Tegra Parker/TX2 Layout
+ * 1 = Pre-GB20x, GB20x 32+ bpp, GB10, Tegra Xavier-Orin Layout
+ * 2 = GB20x(Blackwell 2)+ 8 bpp surface layout
+ * 3 = GB20x(Blackwell 2)+ 16 bpp surface layout
+ * 4 = Reserved for future use.
+ * 5 = Reserved for future use.
+ * 6 = Reserved for future use.
+ * 7 = Reserved for future use.
*
* 25:23 c Lossless Framebuffer Compression type.
*
@@ -1001,7 +1007,7 @@ extern "C" {
* 6 = Reserved for future use
* 7 = Reserved for future use
*
- * 55:25 - Reserved for future use. Must be zero.
+ * 55:28 - Reserved for future use. Must be zero.
*/
#define DRM_FORMAT_MOD_NVIDIA_BLOCK_LINEAR_2D(c, s, g, k, h) \
fourcc_mod_code(NVIDIA, (0x10 | \
@@ -1009,6 +1015,7 @@ extern "C" {
(((k) & 0xff) << 12) | \
(((g) & 0x3) << 20) | \
(((s) & 0x1) << 22) | \
+ (((s) & 0x6) << 25) | \
(((c) & 0x7) << 23)))
/* To grandfather in prior block linear format modifiers to the above layout,