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| author | Iago Toral Quiroga <[email protected]> | 2017-07-21 08:32:24 +0200 |
|---|---|---|
| committer | Iago Toral Quiroga <[email protected]> | 2017-07-26 08:16:43 +0200 |
| commit | 31f1863ace73d31a579e5c36252a957818ad09cf (patch) | |
| tree | 6f180cd0b1e05b1cda45efaf9f4a1064244d9dfe /src/gallium | |
| parent | a848e693efc8e2a1d355dc1076409968b374153f (diff) | |
anv: only expose up to 28 vertex attributes
The EU limit of 128 GRFs should allow 32 vertex elements of 4 GRFs.
However, the maximum allowed value of "Vertex URB Entry Read Length"
in SIMD8 is 15. And 15 * 8 = 120 gives us a limit of 30 vertex elements.
Because we also need to reserve a vertex buffer to upload
VertexIndex/InstanceIndex and another to upload DrawID when needed,
we can only expose 28.
Cc: "17.2" <[email protected]>
Reviewed-by: Lionel Landwerlin <[email protected]>
Diffstat (limited to 'src/gallium')
0 files changed, 0 insertions, 0 deletions