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radv: migrate lds size calculations to shader gen.

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This moves the lds_size calcs into the shader so we have all
the size stuff in one file.

Reviewed-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Dave Airlie
2018-02-20 13:30:14 +10:00
parent 384aced65e
commit 9188bd78d7
3 changed files with 38 additions and 25 deletions
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33
src/amd/vulkan/radv_nir_to_llvm.c
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@@ -174,6 +174,38 @@ get_tcs_num_patches(struct radv_shader_context *ctx)
return num_patches;
}
static unsigned
calculate_tess_lds_size(struct radv_shader_context *ctx)
{
unsigned num_tcs_input_cp = ctx->options->key.tcs.input_vertices;
unsigned num_tcs_output_cp;
unsigned num_tcs_outputs, num_tcs_patch_outputs;
unsigned input_vertex_size, output_vertex_size;
unsigned input_patch_size, output_patch_size;
unsigned pervertex_output_patch_size;
unsigned output_patch0_offset;
unsigned num_patches;
unsigned lds_size;
num_tcs_output_cp = ctx->tcs_vertices_per_patch;
num_tcs_outputs = util_last_bit64(ctx->shader_info->info.tcs.outputs_written);
num_tcs_patch_outputs = util_last_bit64(ctx->shader_info->info.tcs.patch_outputs_written);
input_vertex_size = ctx->tcs_num_inputs * 16;
output_vertex_size = num_tcs_outputs * 16;
input_patch_size = num_tcs_input_cp * input_vertex_size;
pervertex_output_patch_size = num_tcs_output_cp * output_vertex_size;
output_patch_size = pervertex_output_patch_size + num_tcs_patch_outputs * 16;
num_patches = ctx->tcs_num_patches;
output_patch0_offset = input_patch_size * num_patches;
lds_size = output_patch0_offset + output_patch_size * num_patches;
return lds_size;
}
/* Tessellation shaders pass outputs to the next shader using LDS.
*
* LS outputs = TCS inputs
@@ -3130,6 +3162,7 @@ LLVMModuleRef ac_translate_nir_to_llvm(LLVMTargetMachineRef tm,
shaders[i]->info.gs.vertices_out;
} else if (shaders[i]->info.stage == MESA_SHADER_TESS_CTRL) {
shader_info->tcs.num_patches = ctx.tcs_num_patches;
shader_info->tcs.lds_size = calculate_tess_lds_size(&ctx);
}
}