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shader: add GLC/DLC buffer cache policy support

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Co-authored-by: Mac <me@itsmemac.com>
This commit is contained in:
nmzik
2026-09-24 19:02:32 +04:00
parent 6a9ae4ae43
commit dc9280d75d
11 changed files with 124 additions and 18 deletions
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src/graphics/shader/recompiler/backend/spirv/spirvEmitterModule.cpp
+10
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@@ -201,6 +201,16 @@ void DefineDescriptors(EmitterState& state) {
state.builder.AddAnnotation(spv::OpDecorate, state.storage_buffer_u64_variable,
spv::DecorationAliased);
}
if (state.requirements.coherent_buffers) {
// RDNA2 stores publish to L2 even without GLC; every alias of the buffer
// must participate in visibility for cache-bypassing polling loads.
state.builder.AddAnnotation(spv::OpDecorate, state.storage_buffer_variable,
spv::DecorationCoherent);
if (state.storage_buffer_u64_variable != 0) {
state.builder.AddAnnotation(spv::OpDecorate, state.storage_buffer_u64_variable,
spv::DecorationCoherent);
}
}
break;
case IR::DescriptorBindingKind::BdaPagetable:
state.bda_pagetable_variable = Define(StorageBufferU64Type(state), "bda_pagetable");