Only breaking change since Bifrost is that the shader contains barrier? flag is
now fragment-only, meaning it is just a spawn helper threads flag. This affects
compute shaders slightly.
Signed-off-by: Alyssa Rosenzweig <alyssa@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/15003>
Contains stuff needed for layered rendering. Unfortunately, there's no more
provoking vertex per draw -- ugh! That's fine for Vulkan (just don't set
provokingVertexModePerPipeline), but requires inserting extra flushes on desktop
OpenGL.
Signed-off-by: Alyssa Rosenzweig <alyssa@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/15003>
Block compressed formats like ETC2 are now indicated in the plane descriptor,
rather than the pixel format descriptor. Various other minor formats were
removed in Valhall; remove them from the XML so we don't accidentally try to use
them.
Signed-off-by: Alyssa Rosenzweig <alyssa@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14935>
Remove a few that no longer exist, and rename IDVS helper to Malloc Vertex. The
distinction between Malloc Vertex jobs and regular Indexed Vertex jobs is that
the hardware allocates varying buffers dynamically for Malloc Vertex jobs.
Regular IDVS and even legacy tiler jobs are also supported where desired.
Signed-off-by: Alyssa Rosenzweig <alyssa@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14935>
Merged with the Buffer descriptor, hence why it shares a type nibble. However,
Bifrost uses a dedicated tiler heap descriptor, and I see no benefit to merging.
So pretending it's a dedicated descriptor on Valhall too allows us to reuse the
Bifrost code with no modifications.
Signed-off-by: Alyssa Rosenzweig <alyssa@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14935>
Interleave mode specified per-plane on Valhall. The texture descriptor proper
merely has a flag specifying whether planes are somehow interleaved
(u-interleaved, AFBC, or block compressed formats) or whether they are all
linear (and uncompressed).
Signed-off-by: Alyssa Rosenzweig <alyssa@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14851>
Flesh out the ZS/CRC XML, adding fields required for AFBC. Valhall allows AFBC
compressing stencil buffers independent of depth buffers, which is a new feature
since Bifrost. That results in a shuffling of the descriptor.
Signed-off-by: Alyssa Rosenzweig <alyssa@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14851>
This looks superficially like the Bifrost "Surface" descriptor, but it
additionally specifies the in-memory representation of blocks (clumps). If I
understand correctly, decompression is controlled by the plane descriptor,
rather than the texture descriptor level. This is a bit more flexible than
Bifrost.
Once the new fields here are wired up to Mesa, my
dEQP-GLES2.functional.texture.* failures should go away... I hope!
Signed-off-by: Alyssa Rosenzweig <alyssa@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14851>
Otherwise we get DATA_INVALID_FAULT trying to run even trivial null jobs. For
each descriptor, set the correct alignment.
Signed-off-by: Alyssa Rosenzweig <alyssa@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14851>
Removed since there's a new ABI for blend shaders. Even if we always write 0,
it's better not to pack this at all, and to denoise the dumps.
Signed-off-by: Alyssa Rosenzweig <alyssa@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14851>
Although Bifrost clause packing and register assignment is tricky, the
relevant code is by now extensively tested, and there's no remaining
reverse-engineering here. So disassembling verbosely just adds tons of
noise to pandecode without increasing the useful information.
Signed-off-by: Alyssa Rosenzweig <alyssa@collabora.com>
Suggested-by: Icecream95 <ixn@disroot.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14543>
It's a pointer to a thread storage descriptor, not a framebuffer
descriptor. Unlike Midgard, these don't have to alias. The FBD pointer
was unused anyway, so remove it to reduce noise in pandecode dumps.
Signed-off-by: Alyssa Rosenzweig <alyssa@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14543>
Add a helper to dump all mapped GPU memory. This is a blunt, seldom
useful instrument ... but when it /is/ useful it's your only option.
Signed-off-by: Alyssa Rosenzweig <alyssa@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14543>
Rather than emulating page tables, poorly, with a hash table, use a
red-black tree and store the intervals directly. This is deterministic
instead of probabilistic, attaining O(log n) performance for n mapped
intervals which is good enough. Unlike the hash table approach, this
allows us to iterate intervals easily.
Signed-off-by: Alyssa Rosenzweig <alyssa@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14543>
Consider the following innocuous-looking code:
pan_merge(packed, vtx->attributes[i], ATTRIBUTE);
Under the current implementation, this code is completely broken. Why?
The current implemention is a macro which hardcodes the loop index i,
which shadows the i used to index attributes. Pull out a helper method
so we do the right thing without resulting to further preprocessor abuse
(__COUNTER__).
While making things more robust, assert the crucial pan_merge
invariant that the total size is a multiple of 4; if this fails, the
routine risks memory corruption.
Signed-off-by: Alyssa Rosenzweig <alyssa@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14119>
Preload exactly what the shader needs, based on the compiler's mask of
uninitialized registers, rather than trying to sync pan_shader.h with
the behaviour of code gen. Would've saved me some debugging over the
years...
As a bonus this avoids preloading unnecessary registers, particularly in
compute shaders. In theory this should reduce power consumption.
Signed-off-by: Alyssa Rosenzweig <alyssa@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14154>
Valhall v9 introduces a number of new data structures since Bifrost v7,
and removes a number of traditional data structures. Add decode routines
for the new Valhall data structures, and condition the old routines on
(PAN_ARCH <= 7) to remain buildable and warning-free.
Signed-off-by: Alyssa Rosenzweig <alyssa@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/14063>
