diff options
| author | Samuel Pitoiset <[email protected]> | 2019-06-26 15:11:00 +0200 |
|---|---|---|
| committer | Samuel Pitoiset <[email protected]> | 2019-07-01 14:59:17 +0200 |
| commit | b4477fa4d46345d1e8742c1d57c9dcc432edaf51 (patch) | |
| tree | 75bc77f35501bf2939f6d2b4c276ed05e44a7a8d /src/amd/vulkan | |
| parent | cc50c85e1378c560785cf8b241ffa4cdb36f0c29 (diff) | |
radv: reduce number of VGPRs for TESS_EVAL if primitive ID is not used
We only need to 2.
Signed-off-by: Samuel Pitoiset <[email protected]>
Reviewed-by: Bas Nieuwenhuizen <[email protected]>
Diffstat (limited to 'src/amd/vulkan')
| -rw-r--r-- | src/amd/vulkan/radv_shader.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/src/amd/vulkan/radv_shader.c b/src/amd/vulkan/radv_shader.c index c8dc9daf1bc..3c50471c63b 100644 --- a/src/amd/vulkan/radv_shader.c +++ b/src/amd/vulkan/radv_shader.c @@ -471,6 +471,7 @@ radv_get_shader_binary_size(struct ac_shader_binary *binary) static void radv_fill_shader_variant(struct radv_device *device, struct radv_shader_variant *variant, + struct radv_nir_compiler_options *options, struct ac_shader_binary *binary, gl_shader_stage stage) { @@ -495,7 +496,13 @@ radv_fill_shader_variant(struct radv_device *device, switch (stage) { case MESA_SHADER_TESS_EVAL: - vgpr_comp_cnt = 3; + if (options->key.tes.as_es) { + assert(device->physical_device->rad_info.chip_class <= GFX8); + vgpr_comp_cnt = info->uses_prim_id ? 3 : 2; + } else { + bool enable_prim_id = options->key.tes.export_prim_id || info->uses_prim_id; + vgpr_comp_cnt = enable_prim_id ? 3 : 2; + } variant->rsrc2 |= S_00B12C_OC_LDS_EN(1); break; case MESA_SHADER_TESS_CTRL: @@ -534,7 +541,7 @@ radv_fill_shader_variant(struct radv_device *device, if (es_type == MESA_SHADER_VERTEX) { es_vgpr_comp_cnt = variant->info.vs.vgpr_comp_cnt; } else if (es_type == MESA_SHADER_TESS_EVAL) { - es_vgpr_comp_cnt = 3; + es_vgpr_comp_cnt = info->uses_prim_id ? 3 : 2; } else { unreachable("invalid shader ES type"); } @@ -669,7 +676,7 @@ shader_variant_create(struct radv_device *device, radv_destroy_llvm_compiler(&ac_llvm, thread_compiler); - radv_fill_shader_variant(device, variant, &binary, stage); + radv_fill_shader_variant(device, variant, options, &binary, stage); if (code_out) { *code_out = binary.code; |