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radv: Enable NV_mesh_shader with a perftest flag.

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We don't plan to support NV_mesh_shader officially on RADV,
because it performs poorly on AMD hardware. However, we are
implementing this extension to get some experience with mesh
shader technology.

Users should not rely on this support because we are going
to remove it if/when a potential cross-vendor extension appears.

Signed-off-by: Timur Kristóf <timur.kristof@gmail.com>
Acked-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/13580>
This commit is contained in:
Timur Kristóf
2021-10-28 21:25:48 +02:00
committed by Marge Bot
parent f2dd1fbc63
commit 6fee84bc2e
3 changed files with 44 additions and 0 deletions
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docs/envvars.rst
+2
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@@ -686,6 +686,8 @@ RADV driver environment variables
enable local BOs
``nosam``
disable optimizations that get enabled when all VRAM is CPU visible.
``nv_ms``
enable unofficial experimental support for NV_mesh_shader.
``pswave32``
enable wave32 for pixel shaders (GFX10+)
``nggc``