diff options
| 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/intel/vulkan | |
| 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/intel/vulkan')
| -rw-r--r-- | src/intel/vulkan/anv_private.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/intel/vulkan/anv_private.h b/src/intel/vulkan/anv_private.h index faf78498918..86c430397c8 100644 --- a/src/intel/vulkan/anv_private.h +++ b/src/intel/vulkan/anv_private.h @@ -89,7 +89,7 @@ struct gen_l3_config; */ #define ANV_HZ_FC_VAL 1.0f -#define MAX_VBS 31 +#define MAX_VBS 28 #define MAX_SETS 8 #define MAX_RTS 8 #define MAX_VIEWPORTS 16 |