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Resolve GPU-selected raw buffer descriptors through shared RDNA2 addressing

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Co-authored-by: Bipin <87369440+bipinkrish@users.noreply.github.com>
This commit is contained in:
nmzik
2026-09-21 14:07:52 +04:00
parent cfb8f7b246
commit b2a80a3a96
6 changed files with 253 additions and 58 deletions
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src/graphics/shader/recompiler/backend/spirv/SpirvEmitter.cpp
+15 -1
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@@ -132,12 +132,23 @@ void ValidateNativeProgram(const IR::Program& program) {
program.memory_info[index].planning_only;
});
};
const auto indirect_buffer_handle = [&](const IR::Inst& handle) {
return program.info.uses_dma && handle.NumArgs() == 4u && !handle.Uses().empty() &&
std::ranges::all_of(handle.Uses(), [&](const IR::Use& use) {
if (IR::BufferAccessOf(use.user->GetOpcode()) != IR::BufferAccess::Read) {
return false;
}
const auto index = use.user->Flags<IR::MemoryFlags>().index;
return index < program.memory_info.size() &&
program.memory_info[index].kind == IR::ResourceKind::IndirectBuffer;
});
};
for (const auto* block: program.blocks) {
for (const auto& inst: *block) {
const auto dense = inst.Flags<uint32_t>();
switch (inst.GetOpcode()) {
case IR::ValueOpcode::GetBufferResource:
if (planning_only_handle(inst)) {
if (planning_only_handle(inst) || indirect_buffer_handle(inst)) {
break;
}
if (dense >= program.info.buffers.size()) {
@@ -212,6 +223,9 @@ Emitter::SpirvRequirements Emitter::AnalyzeProgramRequirements(const IR::Program
Fail(program, "buffer operation has invalid memory metadata");
}
const auto& memory = program.memory_info[memory_index];
if (memory.kind == IR::ResourceKind::IndirectBuffer) {
requirements.subgroup_local_invocation_id = true;
}
if (memory.kind == IR::ResourceKind::Buffer) {
if (memory.resource >= program.info.buffers.size()) {
Fail(program, "buffer operation has invalid resource metadata");