shader: Fix memory barriers
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c9e4609d87
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0a0818c025
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@ -29,9 +29,8 @@ void EmitReturn(EmitContext& ctx);
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void EmitUnreachable(EmitContext& ctx);
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void EmitDemoteToHelperInvocation(EmitContext& ctx, Id continue_label);
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void EmitBarrier(EmitContext& ctx);
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void EmitMemoryBarrierWorkgroupLevel(EmitContext& ctx);
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void EmitMemoryBarrierDeviceLevel(EmitContext& ctx);
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void EmitMemoryBarrierSystemLevel(EmitContext& ctx);
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void EmitWorkgroupMemoryBarrier(EmitContext& ctx);
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void EmitDeviceMemoryBarrier(EmitContext& ctx);
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void EmitPrologue(EmitContext& ctx);
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void EmitEpilogue(EmitContext& ctx);
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void EmitEmitVertex(EmitContext& ctx, const IR::Value& stream);
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@ -7,7 +7,7 @@
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namespace Shader::Backend::SPIRV {
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namespace {
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void EmitMemoryBarrierImpl(EmitContext& ctx, spv::Scope scope) {
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void MemoryBarrier(EmitContext& ctx, spv::Scope scope) {
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const auto semantics{
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spv::MemorySemanticsMask::AcquireRelease | spv::MemorySemanticsMask::UniformMemory |
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spv::MemorySemanticsMask::WorkgroupMemory | spv::MemorySemanticsMask::AtomicCounterMemory |
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@ -27,16 +27,12 @@ void EmitBarrier(EmitContext& ctx) {
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ctx.Constant(ctx.U32[1], static_cast<u32>(memory_semantics)));
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}
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void EmitMemoryBarrierWorkgroupLevel(EmitContext& ctx) {
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EmitMemoryBarrierImpl(ctx, spv::Scope::Workgroup);
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void EmitWorkgroupMemoryBarrier(EmitContext& ctx) {
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MemoryBarrier(ctx, spv::Scope::Workgroup);
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}
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void EmitMemoryBarrierDeviceLevel(EmitContext& ctx) {
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EmitMemoryBarrierImpl(ctx, spv::Scope::Device);
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}
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void EmitMemoryBarrierSystemLevel(EmitContext& ctx) {
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EmitMemoryBarrierImpl(ctx, spv::Scope::CrossDevice);
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void EmitDeviceMemoryBarrier(EmitContext& ctx) {
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MemoryBarrier(ctx, spv::Scope::Device);
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}
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} // namespace Shader::Backend::SPIRV
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@ -86,20 +86,12 @@ void IREmitter::Barrier() {
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Inst(Opcode::Barrier);
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}
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void IREmitter::MemoryBarrier(MemoryScope scope) {
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switch (scope) {
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case MemoryScope::Workgroup:
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Inst(Opcode::MemoryBarrierWorkgroupLevel);
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break;
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case MemoryScope::Device:
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Inst(Opcode::MemoryBarrierDeviceLevel);
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break;
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case MemoryScope::System:
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Inst(Opcode::MemoryBarrierSystemLevel);
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break;
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default:
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throw InvalidArgument("Invalid memory scope {}", scope);
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}
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void IREmitter::WorkgroupMemoryBarrier() {
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Inst(Opcode::WorkgroupMemoryBarrier);
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}
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void IREmitter::DeviceMemoryBarrier() {
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Inst(Opcode::DeviceMemoryBarrier);
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}
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void IREmitter::Return() {
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@ -144,8 +144,9 @@ public:
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[[nodiscard]] Value Select(const U1& condition, const Value& true_value,
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const Value& false_value);
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[[nodiscard]] void Barrier();
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[[nodiscard]] void MemoryBarrier(MemoryScope scope);
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void Barrier();
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void WorkgroupMemoryBarrier();
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void DeviceMemoryBarrier();
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template <typename Dest, typename Source>
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[[nodiscard]] Dest BitCast(const Source& value);
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@ -64,9 +64,8 @@ bool Inst::MayHaveSideEffects() const noexcept {
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case Opcode::Unreachable:
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case Opcode::DemoteToHelperInvocation:
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case Opcode::Barrier:
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case Opcode::MemoryBarrierWorkgroupLevel:
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case Opcode::MemoryBarrierDeviceLevel:
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case Opcode::MemoryBarrierSystemLevel:
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case Opcode::WorkgroupMemoryBarrier:
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case Opcode::DeviceMemoryBarrier:
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case Opcode::Prologue:
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case Opcode::Epilogue:
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case Opcode::EmitVertex:
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@ -25,14 +25,6 @@ enum class FpRounding : u8 {
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RZ, // Round towards zero
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};
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enum class MemoryScope : u32 {
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DontCare,
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Warp,
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Workgroup,
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Device,
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System,
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};
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struct FpControl {
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bool no_contraction{false};
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FpRounding rounding{FpRounding::DontCare};
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@ -18,9 +18,8 @@ OPCODE(DemoteToHelperInvocation, Void, Labe
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// Barriers
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OPCODE(Barrier, Void, )
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OPCODE(MemoryBarrierWorkgroupLevel, Void, )
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OPCODE(MemoryBarrierDeviceLevel, Void, )
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OPCODE(MemoryBarrierSystemLevel, Void, )
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OPCODE(WorkgroupMemoryBarrier, Void, )
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OPCODE(DeviceMemoryBarrier, Void, )
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// Special operations
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OPCODE(Prologue, Void, )
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@ -12,34 +12,24 @@ namespace Shader::Maxwell {
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namespace {
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// Seems to be in CUDA terminology.
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enum class LocalScope : u64 {
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CTG = 0,
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GL = 1,
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SYS = 2,
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VC = 3,
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CTA,
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GL,
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SYS,
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VC,
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};
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IR::MemoryScope LocalScopeToMemoryScope(LocalScope scope) {
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switch (scope) {
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case LocalScope::CTG:
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return IR::MemoryScope::Workgroup;
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case LocalScope::GL:
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return IR::MemoryScope::Device;
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case LocalScope::SYS:
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return IR::MemoryScope::System;
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default:
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throw NotImplementedException("Unimplemented Local Scope {}", scope);
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}
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}
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} // Anonymous namespace
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void TranslatorVisitor::MEMBAR(u64 inst) {
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union {
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u64 raw;
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BitField<8, 2, LocalScope> scope;
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} membar{inst};
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} const membar{inst};
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ir.MemoryBarrier(LocalScopeToMemoryScope(membar.scope));
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if (membar.scope == LocalScope::CTA) {
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ir.WorkgroupMemoryBarrier();
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} else {
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ir.DeviceMemoryBarrier();
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}
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}
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void TranslatorVisitor::DEPBAR() {
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