NOTE: skipped AMD header update due to build error.
From drm-next at the following commit:
commit 2e1492835e439fceba57a5b0f9b17da8e78ffa3d
Merge: 85d712f033d2 43049f17b526
Author: Dave Airlie <airlied@redhat.com>
Date: Fri Jun 2 13:38:48 2023 +1000
Merge tag 'drm-misc-next-2023-06-01' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
Signed-off-by: Alan Previn <alan.previn.teres.alexis@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23382>
This adds modifiers for GFX9+ AMD GPUs.
As the modifiers need a lot of parameters I split things out in
getters and setters.
- Advantage: simplifies the code a lot
- Disadvantage: Makes it harder to check that you're setting all
the required fields.
The tiling modes seem to change every generatio, but the structure
of what each tiling mode is good for stays really similar. As such
the core of the modifier is
- the tiling mode
- a version. Not explicitly a GPU generation, but splitting out
a new set of tiling equations.
Sometimes one or two tiling modes stay the same and for those we
specify a canonical version.
Then we have a bunch of parameters on how the compression works.
Different HW units have different requirements for these and we
actually have some conflicts here.
e.g. the render backends need a specific alignment but the display
unit only works with unaligned compression surfaces. To work around
that we have a DCC_RETILE option where both an aligned and unaligned
compression surface are allocated and a writer has to sync the
aligned surface to the unaligned surface on handoff.
Finally there are some GPU parameters that participate in the tiling
equations. These are constant for each GPU on the rendering/texturing
side. The display unit is very flexible however and supports all
of them :|
Some estimates:
- Single GPU, render+texture: ~10 modifiers
- All possible configs in a gen, display: ~1000 modifiers
- Configs of actually existing GPUs in a gen: ~100 modifiers
For formats with a single plane everything gets put in a separate
DRM plane. However, this doesn't fit for some YUV formats, so if
the format has >1 plane, we let the driver pack the surfaces into
1 DRM plane per format plane.
This way we avoid X11 rendering onto the frontbuffer with DCC, but
still fit into 4 DRM planes.
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6176>
Pull new updates from drm-next as of the following commit:
commit f1b4a9217efd61d0b84c6dc404596c8519ff6f59
Merge: 400e91347e1d f3a36d469621
Author: Dave Airlie <airlied@redhat.com>
Date: Tue Oct 22 15:04:00 2019 +1000
Merge tag 'du-next-20191016' of git://linuxtv.org/pinchartl/media into drm-next
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Taken from drm-misc-next 268de6530aa1 ("drm: mst: Fix query_payload
ack reply struct")
Reviewed-by: Eric Engestrom <eric.engestrom@intel.com>
Reviewed-by: Kristian H. Kristensen <hoegsberg@google.com>
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>
Avoid a compiler warnings when the val parameter is an expression.
This is based on commit 5843f4e02fbe86a59981e35adc6cabebee46fdc0 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>
I want to remove vc4's dependency on headers from libdrm as well, but
storing multiple copies of drm_fourcc.h in our tree would be silly.
v2: Update Android.mk as well, move distcheck drm*.h references to
top-level noinst_HEADERS.
Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com> (v1)
Reviewed-by: Daniel Stone <daniels@collabora.com> (v1)
Reviewed-by: Rob Herring <robh@kernel.org>
