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75bf489628
The existing format modifier definitions were merged prematurely, and
recent work has unveiled that the definitions are suboptimal in several
ways:
- The format specifiers, except for one, are not Tegra specific, but
the names don't reflect that.
- The number space is split into two, reserving 32 bits for some
"parameter" which most of the modifiers are not going to have.
- Symbolic names for the modifiers are not using the standard
DRM_FORMAT_MOD_* prefix, which makes them awkward to use.
- The vendor prefix NV is somewhat ambiguous.
Fortunately, nobody's started using these modifiers, so we can still fix
the above issues. Do so by using the standard prefix. Also, remove TEGRA
from the name of those modifiers that exist on NVIDIA GPUs as well. In
case of the block linear modifiers, make the "parameter" smaller (4
bits, though only 6 values are valid) and don't let that leak into any
of the other modifiers.
Finally, also use the more canonical NVIDIA instead of the ambiguous NV
prefix.
This is based on commit 268892cb63a822315921a8dab48ac3e4abf7dd03 from
Linux v4.16-rc1.
Acked-by: Emil Velikov <emil.velikov@collabora.com>
Tested-by: Andre Heider <a.heider@gmail.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
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| drm.h | ||
| drm_fourcc.h | ||
| drm_mode.h | ||
| i915_drm.h | ||
| README | ||
| vc4_drm.h | ||
This directory contains a copy of the installed kernel headers
required by the anv & i965 drivers to communicate with the kernel.
Whenever either of those driver needs new definitions for new kernel
APIs, these files should be updated.
These files in master should only be updated once the changes have landed
in the drm-next tree.
You can copy files installed after running this from the kernel
repository, at version the drivers require :
$ make headers_install INSTALL_HDR_PATH=/path/to/install
The last update was done at the following kernel commit :
commit ca797d29cd63e7b71b4eea29aff3b1cefd1ecb59
Merge: 2c1c55cb75a9 010d118c2061
Author: Dave Airlie <airlied@redhat.com>
Date: Mon Dec 4 09:40:35 2017 +1000
Merge tag 'drm-intel-next-2017-11-17-1' of git://anongit.freedesktop.org/drm/drm-intel into drm-next