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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/ir/passes/ResourceTracking.cpp
+19 -2
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@@ -526,7 +526,7 @@ private:
}
}
void GetHandle(Value value, ValueOpcode expected, uint32_t width, uint32_t pc, Inst*& handle,
bool GetHandle(Value value, ValueOpcode expected, uint32_t width, uint32_t pc, Inst*& handle,
uint32_t& source, bool sampler = false, bool sample_adjust = false) {
handle = value.Resolve().TryInstruction();
if (handle == nullptr || handle->GetOpcode() != expected) {
@@ -546,10 +546,16 @@ private:
bad_dword = 0;
}
if (!ValidateSource(descriptor, bad_dword)) {
if (expected == ValueOpcode::GetBufferResource &&
std::all_of(descriptor.dwords.begin(), descriptor.dwords.begin() + width,
[](Value word) { return word.Resolve().GetType() == Type::U32; })) {
return false;
}
Fail(pc, fmt::format("{} dword {} is not a valid runtime value",
ValueOpcodeName(expected), bad_dword));
}
source = InternSource(descriptor);
return true;
}
void ValidateAddressHandle(Value value, uint32_t pc) const {
@@ -720,7 +726,18 @@ private:
uint32_t resource = 0;
if (buffer != BufferAccess::None) {
GetHandle(inst.Arg(0), ValueOpcode::GetBufferResource, 4, flags.pc, handle, source);
if (!GetHandle(inst.Arg(0), ValueOpcode::GetBufferResource, 4, flags.pc, handle,
source)) {
if (memory.kind != ResourceKind::Buffer || memory.formatted || memory.typed ||
(op != ValueOpcode::LoadBufferU32x2 && op != ValueOpcode::LoadBufferU32x4)) {
Fail(flags.pc,
"buffer descriptor is not a valid runtime value; GPU-selected access "
"requires a raw DWORD x2/x4 load");
}
m_program.memory_info[flags.index].kind = ResourceKind::IndirectBuffer;
m_info.uses_dma = true;
return;
}
resource = AddBuffer(source, memory, op, flags.pc);
if (resource == UINT32_MAX) {
Fail(flags.pc, "buffer resource limit exceeded");