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anv: Pre-compute push ranges for graphics pipelines

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It turns off that emitting push constants is one of the hottest paths in
the driver and ANY work we do there costs us.  By pre-computing things a
bit ahead of time, we shave 5% off the runtime of a CPU-limited example
running with the Dawn WebGPU implementation.

Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
This commit is contained in:
Jason Ekstrand
2019-11-08 09:42:30 -06:00
parent 4b392ced2d
commit aecde23519
8 changed files with 137 additions and 64 deletions
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3
src/intel/vulkan/anv_pipeline_cache.c
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@@ -169,6 +169,8 @@ anv_shader_bin_write_to_blob(const struct anv_shader_bin *shader,
blob_write_bytes(blob, shader->bind_map.sampler_to_descriptor,
shader->bind_map.sampler_count *
sizeof(*shader->bind_map.sampler_to_descriptor));
blob_write_bytes(blob, shader->bind_map.push_ranges,
sizeof(shader->bind_map.push_ranges));
return !blob->out_of_memory;
}
@@ -212,6 +214,7 @@ anv_shader_bin_create_from_blob(struct anv_device *device,
bind_map.sampler_to_descriptor = (void *)
blob_read_bytes(blob, bind_map.sampler_count *
sizeof(*bind_map.sampler_to_descriptor));
blob_copy_bytes(blob, bind_map.push_ranges, sizeof(bind_map.push_ranges));
if (blob->overrun)
return NULL;