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anv: bump maxTessellationControlTotalOutputComponents

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Our backend compiler explains the limits as :

   32 bytes for the patch header (tessellation factors)
  480 bytes for per-patch varyings (a varying component is 4 bytes and
            gl_MaxTessPatchComponents = 120)
16384 bytes for per-vertex varyings (a varying component is 4 bytes,
            gl_MaxPatchVertices = 32 and
            gl_MaxTessControlOutputComponents = 128)

In all that's :
  * 32 patches * 128 components (counting tessellation factors)
  * 32 vertices * 128 components

8192 total components.

I'm not sure why the limit was set so low, maybe leftover from older platforms?

Bump the limit to something like competition.

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@intel.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/38523>
This commit is contained in:
Lionel Landwerlin 2025-11-19 12:26:02 +02:00 • committed by Marge Bot
parent 65ba14519e
commit 6fe2035065
1 changed files with 1 additions and 1 deletions
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2
src/intel/vulkan/anv_physical_device.c
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@ -1353,7 +1353,7 @@ get_properties(const struct anv_physical_device *pdevice,
.maxTessellationControlPerVertexInputComponents = 128,
.maxTessellationControlPerVertexOutputComponents = 128,
.maxTessellationControlPerPatchOutputComponents = 128,
.maxTessellationControlTotalOutputComponents = 2048,
.maxTessellationControlTotalOutputComponents = 4096,
.maxTessellationEvaluationInputComponents = 128,
.maxTessellationEvaluationOutputComponents = 128,
.maxGeometryShaderInvocations = 32,