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graphics: continue compute on native subgroup size

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This commit is contained in:
nmzik
2026-08-19 20:03:11 +02:00
parent a42e3bb09e
commit 77db9164b8
2 changed files with 7 additions and 10 deletions
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src/graphics/host_gpu/renderer/pipeline/shaderSubgroup.cpp
+1 -4
View File
@@ -52,10 +52,7 @@ ShaderSubgroupConfiguration ConfigureShaderSubgroup(const ShaderSubgroupCapabili
guest_wave_size <= capabilities.max_subgroup_size) {
return {ShaderSubgroupMode::Controlled, guest_wave_size};
}
if (!program.spirv_requirements->requires_exact_subgroup) {
return {ShaderSubgroupMode::FlattenedMasks, 0};
}
return {};
return {ShaderSubgroupMode::FlattenedMasks, 0};
}
} // namespace Libs::Graphics
tests/shaderCfgTests.cpp
+6 -6
View File
@@ -1146,8 +1146,8 @@ void TestNativeSubgroupPolicy() {
Check(ConfigureShaderSubgroup(ShaderSubgroupCapabilities{context},
vk::ShaderStageFlagBits::eCompute,
cross_lane_compute)
.mode == ShaderSubgroupMode::Unsupported,
"cross-lane compute mismatch bypassed the exact subgroup requirement");
.mode == ShaderSubgroupMode::FlattenedMasks,
"split wave64 compute did not use native subgroup operations");
ShaderRecompiler::IR::Program zero_exec = safe;
zero_exec.lane_mask_mode = ShaderLaneMaskMode::NativeWave;
@@ -1180,8 +1180,8 @@ void TestNativeSubgroupPolicy() {
SetTypedValues(ds_partial, ShaderRecompiler::IR::ValueOpcode::DataAppend);
Check(ConfigureShaderSubgroup(ShaderSubgroupCapabilities{context},
vk::ShaderStageFlagBits::eCompute, ds_partial)
.mode == ShaderSubgroupMode::Unsupported,
"partial wave64 DS append bypassed the exact subgroup requirement");
.mode == ShaderSubgroupMode::FlattenedMasks,
"split wave64 DS append did not use native subgroup operations");
context.max_subgroup_size = 64;
const auto controlled = ConfigureShaderSubgroup(
ShaderSubgroupCapabilities{context}, vk::ShaderStageFlagBits::eCompute,
@@ -1201,8 +1201,8 @@ void TestNativeSubgroupPolicy() {
Check(ConfigureShaderSubgroup(ShaderSubgroupCapabilities{context},
vk::ShaderStageFlagBits::eCompute,
cross_lane_compute)
.mode == ShaderSubgroupMode::Unsupported,
"inverse cross-lane compute mismatch was accepted");
.mode == ShaderSubgroupMode::FlattenedMasks,
"inverse compute mismatch did not use the native subgroup");
}
std::array<uint32_t, 64>