We can express any-hit/intersection shaders as functions, too.
Any-hit/Intersection shaders need the usual parameters like launch
IDs/descriptor data/ray properties, origin, direction/etc., but also
some special parameters related to traversal state. Any-hit/intersection
shaders need to return whether the hit was accepted and/or traversal
should be terminated, as well as the intersection T value (for
intersection shaders). Both any-hit and intersection shaders also need
to be passed hit attributes via parameters. Closest-Hit shaders need
those too, but we pass them out-of-band via LDS. LDS is used for the
traversal stack when any-hit/intersection shaders, so we need to pass
them via parameters.
Hit attributes are similar to ray payloads in the sense that they're
dynamically sized depending on how much space the application uses.
However, unlike ray payloads, hit attribute sizes have a strict upper
bound of 8 dwords. To make managing parameters easier, we put all hit
attributes in a single vector parameter with 0-8 components. This
prevents having a function with two sets of arbitrary numbers of
parameters.
This commit sets up ahit/isec function signatures and implements
lowering for ahit/isec-specific intrinsics in the context of these
functions. Subsequent commits will merely have to call into these
functions to execute a separate-compiled any-hit/intersection shader.
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/39314>
It is enough to compute them after upload.
This saves some disk space and eliminates an unlikely
bug where the shader cache is shared between two GPUs
with the same chip but a different number of enabled CUs.
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/38970>
This is done by grep ALIGN( to align(
docs,*.xml,blake3 is excluded
Signed-off-by: Yonggang Luo <luoyonggang@gmail.com>
Reviewed-by: Timur Kristóf <timur.kristof@gmail.com>
Acked-by: Alyssa Rosenzweig <alyssa.rosenzweig@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/38365>
../src/amd/vulkan/layers/radv_sqtt_layer.c(1040): error C2220: the following warning is treated as an error
../src/amd/vulkan/layers/radv_sqtt_layer.c(1040): warning C5287: operands are different enum types 'rgp_sqtt_marker_event_type' and 'rgp_sqtt_marker_general_api_type'; use an explicit cast to silence this warning
../src/amd/vulkan/layers/radv_sqtt_layer.c(1040): note: to simplify migration, consider the temporary use of /Wv:18 flag with the version of the compiler with which you used to build without warnings
../src/amd/vulkan/layers/radv_sqtt_layer.c(1052): warning C5287: operands are different enum types 'rgp_sqtt_marker_event_type' and 'rgp_sqtt_marker_general_api_type'; use an explicit cast to silence this warning
../src/amd/vulkan/layers/radv_sqtt_layer.c(1052): note: to simplify migration, consider the temporary use of /Wv:18 flag with the version of the compiler with which you used to build without warnings
../src/amd/vulkan/layers/radv_sqtt_layer.c(1059): warning C5287: operands are different enum types 'rgp_sqtt_marker_event_type' and 'rgp_sqtt_marker_general_api_type'; use an explicit cast to silence this warning
../src/amd/vulkan/layers/radv_sqtt_layer.c(1059): note: to simplify migration, consider the temporary use of /Wv:18 flag with the version of the compiler with which you used to build without warnings
../src/amd/vulkan/radv_dgc.c(2155): error C2220: the following warning is treated as an error
../src/amd/vulkan/radv_dgc.c(2155): warning C5287: operands are different enum types 'rgp_sqtt_marker_event_type' and 'rgp_sqtt_marker_general_api_type'; use an explicit cast to silence this warning
../src/amd/vulkan/radv_dgc.c(2155): note: to simplify migration, consider the temporary use of /Wv:18 flag with the version of the compiler with which you used to build without warnings
Signed-off-by: Yonggang Luo <luoyonggang@gmail.com>
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/36862>
It's not only for GL, change to a generic name.
Use command:
find . -type f -not -path '*/.git/*' -exec sed -i 's/\bgl_shader_stage\b/mesa_shader_stage/g' {} +
Acked-by: Mike Blumenkrantz <michael.blumenkrantz@gmail.com>
Acked-by: Alyssa Rosenzweig <alyssa@rosenzweig.io>
Acked-by: Yonggang Luo <luoyonggang@gmail.com>
Acked-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/36569>
In the C23 standard unreachable() is now a predefined function-like
macro in <stddef.h>
See https://android.googlesource.com/platform/bionic/+/HEAD/docs/c23.md#is-now-a-predefined-function_like-macro-in
And this causes build errors when building for C23:
-----------------------------------------------------------------------
In file included from ../src/util/log.h:30,
from ../src/util/log.c:30:
../src/util/macros.h:123:9: warning: "unreachable" redefined
123 | #define unreachable(str) \
| ^~~~~~~~~~~
In file included from ../src/util/macros.h:31:
/usr/lib/gcc/x86_64-linux-gnu/14/include/stddef.h:456:9: note: this is the location of the previous definition
456 | #define unreachable() (__builtin_unreachable ())
| ^~~~~~~~~~~
-----------------------------------------------------------------------
So don't redefine it with the same name, but use the name UNREACHABLE()
to also signify it's a macro.
Using a different name also makes sense because the behavior of the
macro was extending the one of __builtin_unreachable() anyway, and it
also had a different signature, accepting one argument, compared to the
standard unreachable() with no arguments.
This change improves the chances of building mesa with the C23 standard,
which for instance is the default in recent AOSP versions.
All the instances of the macro, including the definition, were updated
with the following command line:
git grep -l '[^_]unreachable(' -- "src/**" | sort | uniq | \
while read file; \
do \
sed -e 's/\([^_]\)unreachable(/\1UNREACHABLE(/g' -i "$file"; \
done && \
sed -e 's/#undef unreachable/#undef UNREACHABLE/g' -i src/intel/isl/isl_aux_info.c
Reviewed-by: Erik Faye-Lund <erik.faye-lund@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/36437>
A begin/end sequence is something like (it's all macros based):
radeon_begin(cs);
radeon_emit(PKT3(PKT3_DRAW_INDEX_AUTO, 1, cmd_buffer->state.predicating));
radeon_emit(vertex_count);
radeon_emit(V_0287F0_DI_SRC_SEL_AUTO_INDEX | use_opaque);
radeon_end();
This is loosely based on RadeonSI (see !8653 (a0978fff)) and it seems
indeed faster overall.
The main goal of this rework is to re-use the same logic as RadeonSI
for paired packets on GFX12 (also GFX11 dGPUs) because it's supposed
to be way faster, especially on GFX12 where the CP is slow. The other
goal is to share more cmdbuf emission between both drivers in the near
future.
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/34229>
With all the RT-enabled driver setting this field, we can now have the
runtime use it instead of calling into the driver's vfunc.
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Connor Abbott <cwabbott0@gmail.com>
Reviewed-by: Faith Ekstrand <faith.ekstrand@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/34026>
Forcing a dedicated sparse queue is problematic in real-world scenarios.
In the current implicit sync world for sparse updates, we can rely on
submission order.
For use cases where an application can take advantage of the separate
sparse queue to do "async" updates, the existing implementation works
well, but problems arise when trying to implement D3D-style submission
ordering. E.g., when a game does sparse on a graphics or compute queue,
we need to guarantee that previous submissions, sparse update and future
submissions are properly ordered.
The Vulkan way of implementing this is to:
- Signal graphics queue to timeline N (i.e. last submission made)
- Wait on timeline N on the sparse queue
- Do sparse updates
- Signal timeline N + 1 on sparse queue
- Wait for timeline N + 1 on graphics queue (can be deferred until next
graphics submit)
This causes an unavoidable bubble in GPU execution, since the
existing sparse queue ends up doing:
- Wait pending signal. The implication here is that all previous GPU
work must have been submitted.
- Do VM operations on CPU timeline
- Wait for semaphores to signal (this is required for signal ordering)
- ... GPU is meanwhile stalling in a bubble due to GPU -> CPU -> GPU roundtrip.
- Signal semaphore on CPU (unblocks GPU work)
Letting the GPU go idle here is not great, and we can be screwed over by bad thread scheduling.
Another knock-on effect is that the graphics queue is now forced into
using a thread for submissions. This is because when the graphics queue
wants to wait for timeline N + 1, the sparse queue may not have
signalled the timeline yet on CPU, so effectively, we have created a
wait-before-signal situation internally in RADV. Throwing another thread
under the bus is not great either.
Just letting the queue in question support sparse binding solves all
these issues and I don't see a path forward where the D3D use case can
be solved in a separate queue world.
It is also friendlier to the ecosystem at large. RADV is the only driver
I know of that insists on separate sparse queues and multiple games
assume that graphics queue can support sparse.
Signed-off-by: Hans-Kristian Arntzen <post@arntzen-software.no>
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/33166>
This used to abort (see the previous commit) when the hardware wasn't
able to sample all SPM counters because the BO was too small. The SPM
BO can now be resized like the SQTT BO.
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/31883>
The major differences compared to the NV extensions are:
- support for the sequence index as push constants
- support for draw with count tokens (note that DrawID is zero for
normal draws)
- support for raytracing
- support for IES (only compute is supported for now)
- improved preprocessing support with the state command buffer param
The NV DGC extensions were only enabled for vkd3d-proton and it will
maintain both paths for a while, so they can be replaced by the EXT.
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/31383>
vkd3d-proton always sets the acceleration structure size to be the
whole buffer size. Because of that, allocating read back buffers
for all acceleration structures causes a system with a finite amount
of RAM to OOM.
This is solved by allocating read back buffers on build where the
required size is known.
Reviewed-by: Friedrich Vock <friedrich.vock@gmx.de>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/29537>
