Vulkan spec 18.8. Primitives Generated Queries:
When a generated primitive query for a vertex stream is active,
the primitives-generated count is incremented every time a
primitive emitted to that stream reaches the transform feedback
stage, whether or not transform feedback is active.
We can see the order of stages in chapter 27 Fixed-Function
Vertex Post-Processing, which shows that the transform feedback
stage is before rasterization (and therefore culling).
Conclusion is that culled primitives should be included
in the primitives generated query.
This commit makes sure to emit the primitives generated query
code before culling and uses the input primitive count passed
to the current wave instead of the exec mask after culling.
Cc: mesa-stable
Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Qiang Yu <yuq825@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/21037>
Builds on the work of !15121. This gets to delete even more code
because many drivers shared a lot of code for i2b and f2b.
No shader-db or fossil-db changes on any Intel platform.
v2: Rebase on 1a35acd8d9.
v3: Update a comment in nir_opcodes_c.py. Suggested by Konstantin.
v4: Another rebase. Remove f2b stuff from Midgard.
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/20509>
ACO does not support 8bit ALU ops.
Reviewed-by: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Signed-off-by: Qiang Yu <yuq825@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/20691>
For last VGT stage to export parameter outputs.
Reviewed-by: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Signed-off-by: Qiang Yu <yuq825@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/20691>
Used by last VGT stage to export position related outputs.
Reviewed-by: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Signed-off-by: Qiang Yu <yuq825@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/20691>
Mesh shader primitive export is left unchanged because it needs
extra changes for per primitive output export when export
primitive.
Mesh shader will use second channel of primitive export.
Reviewed-by: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Signed-off-by: Qiang Yu <yuq825@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/20691>
The face culling algorithm should have been disabled for
conservative overestimation because it already
(mistakenly) removed some close-to-zero area triangles.
Now that the driver disables it in that case,
let's always remove zero-area triangles.
This only costs +2 SALU instructions.
Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/20987>
Even when small primitive culling is disabled, the face culling algorithm
in ac_nir_cull can delete tiny triangles when their area is almost zero.
Cc: mesa-stable
Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/20987>
When all shader stages have already been imported it's possible to
skip radv_graphics_pipeline_compile() entirely. This makes GPL
fast-linking VERY fast.
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/21068>
Only the blend state was relying on the graphics pipeline key. This
will allow us to skip generating it when there is no compilation at
all (for fast-linking with GPL).
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/21068>
Otherwise, a noop FS will be always compiled during linking if not
provided by the application and that is too slow for fast-linking.
This should be improved to use a global noop FS but it's really tricky
because NIR linking doesn't do anything when the next stage is unknown,
and hence doesn't remove unused varyings.
Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/21042>
People who use RADV on eGPU have reported poor performance by default.
They also noted that the "nosam" option helps.
This commit disables placing CS objects in VRAM when the bandwidth is
below that of PCIe 3.0 x8. Note that eGPUs are typically PCIe 3.0 x4.
Contributes-to: https://gitlab.freedesktop.org/mesa/mesa/-/issues/7340
Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/20842>
