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Merge pull request #2784 from ReinUsesLisp/smem

shader_ir: Implement shared memory
This commit is contained in:
bunnei 2019-09-18 16:26:05 -04:00 committed by GitHub
commit b31880dc5e
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GPG Key ID: 4AEE18F83AFDEB23
5 changed files with 81 additions and 21 deletions

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@ -325,6 +325,7 @@ public:
DeclareRegisters(); DeclareRegisters();
DeclarePredicates(); DeclarePredicates();
DeclareLocalMemory(); DeclareLocalMemory();
DeclareSharedMemory();
DeclareInternalFlags(); DeclareInternalFlags();
DeclareInputAttributes(); DeclareInputAttributes();
DeclareOutputAttributes(); DeclareOutputAttributes();
@ -499,6 +500,13 @@ private:
code.AddNewLine(); code.AddNewLine();
} }
void DeclareSharedMemory() {
if (stage != ProgramType::Compute) {
return;
}
code.AddLine("shared uint {}[];", GetSharedMemory());
}
void DeclareInternalFlags() { void DeclareInternalFlags() {
for (u32 flag = 0; flag < static_cast<u32>(InternalFlag::Amount); flag++) { for (u32 flag = 0; flag < static_cast<u32>(InternalFlag::Amount); flag++) {
const auto flag_code = static_cast<InternalFlag>(flag); const auto flag_code = static_cast<InternalFlag>(flag);
@ -881,6 +889,12 @@ private:
Type::Uint}; Type::Uint};
} }
if (const auto smem = std::get_if<SmemNode>(&*node)) {
return {
fmt::format("{}[{} >> 2]", GetSharedMemory(), Visit(smem->GetAddress()).AsUint()),
Type::Uint};
}
if (const auto internal_flag = std::get_if<InternalFlagNode>(&*node)) { if (const auto internal_flag = std::get_if<InternalFlagNode>(&*node)) {
return {GetInternalFlag(internal_flag->GetFlag()), Type::Bool}; return {GetInternalFlag(internal_flag->GetFlag()), Type::Bool};
} }
@ -1286,6 +1300,11 @@ private:
target = { target = {
fmt::format("{}[{} >> 2]", GetLocalMemory(), Visit(lmem->GetAddress()).AsUint()), fmt::format("{}[{} >> 2]", GetLocalMemory(), Visit(lmem->GetAddress()).AsUint()),
Type::Uint}; Type::Uint};
} else if (const auto smem = std::get_if<SmemNode>(&*dest)) {
ASSERT(stage == ProgramType::Compute);
target = {
fmt::format("{}[{} >> 2]", GetSharedMemory(), Visit(smem->GetAddress()).AsUint()),
Type::Uint};
} else if (const auto gmem = std::get_if<GmemNode>(&*dest)) { } else if (const auto gmem = std::get_if<GmemNode>(&*dest)) {
const std::string real = Visit(gmem->GetRealAddress()).AsUint(); const std::string real = Visit(gmem->GetRealAddress()).AsUint();
const std::string base = Visit(gmem->GetBaseAddress()).AsUint(); const std::string base = Visit(gmem->GetBaseAddress()).AsUint();
@ -2175,6 +2194,10 @@ private:
return "lmem_" + suffix; return "lmem_" + suffix;
} }
std::string GetSharedMemory() const {
return fmt::format("smem_{}", suffix);
}
std::string GetInternalFlag(InternalFlag flag) const { std::string GetInternalFlag(InternalFlag flag) const {
constexpr std::array InternalFlagNames = {"zero_flag", "sign_flag", "carry_flag", constexpr std::array InternalFlagNames = {"zero_flag", "sign_flag", "carry_flag",
"overflow_flag"}; "overflow_flag"};

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@ -35,7 +35,7 @@ u32 GetUniformTypeElementsCount(Tegra::Shader::UniformType uniform_type) {
return 1; return 1;
} }
} }
} // namespace } // Anonymous namespace
u32 ShaderIR::DecodeMemory(NodeBlock& bb, u32 pc) { u32 ShaderIR::DecodeMemory(NodeBlock& bb, u32 pc) {
const Instruction instr = {program_code[pc]}; const Instruction instr = {program_code[pc]};
@ -106,16 +106,17 @@ u32 ShaderIR::DecodeMemory(NodeBlock& bb, u32 pc) {
} }
break; break;
} }
case OpCode::Id::LD_L: { case OpCode::Id::LD_L:
LOG_DEBUG(HW_GPU, "LD_L cache management mode: {}", LOG_DEBUG(HW_GPU, "LD_L cache management mode: {}", static_cast<u64>(instr.ld_l.unknown));
static_cast<u64>(instr.ld_l.unknown.Value())); [[fallthrough]];
case OpCode::Id::LD_S: {
const auto GetLmem = [&](s32 offset) { const auto GetMemory = [&](s32 offset) {
ASSERT(offset % 4 == 0); ASSERT(offset % 4 == 0);
const Node immediate_offset = Immediate(static_cast<s32>(instr.smem_imm) + offset); const Node immediate_offset = Immediate(static_cast<s32>(instr.smem_imm) + offset);
const Node address = Operation(OperationCode::IAdd, NO_PRECISE, GetRegister(instr.gpr8), const Node address = Operation(OperationCode::IAdd, NO_PRECISE, GetRegister(instr.gpr8),
immediate_offset); immediate_offset);
return GetLocalMemory(address); return opcode->get().GetId() == OpCode::Id::LD_S ? GetSharedMemory(address)
: GetLocalMemory(address);
}; };
switch (instr.ldst_sl.type.Value()) { switch (instr.ldst_sl.type.Value()) {
@ -135,14 +136,16 @@ u32 ShaderIR::DecodeMemory(NodeBlock& bb, u32 pc) {
return 0; return 0;
} }
}(); }();
for (u32 i = 0; i < count; ++i) for (u32 i = 0; i < count; ++i) {
SetTemporary(bb, i, GetLmem(i * 4)); SetTemporary(bb, i, GetMemory(i * 4));
for (u32 i = 0; i < count; ++i) }
for (u32 i = 0; i < count; ++i) {
SetRegister(bb, instr.gpr0.Value() + i, GetTemporary(i)); SetRegister(bb, instr.gpr0.Value() + i, GetTemporary(i));
}
break; break;
} }
default: default:
UNIMPLEMENTED_MSG("LD_L Unhandled type: {}", UNIMPLEMENTED_MSG("{} Unhandled type: {}", opcode->get().GetName(),
static_cast<u32>(instr.ldst_sl.type.Value())); static_cast<u32>(instr.ldst_sl.type.Value()));
} }
break; break;
@ -209,27 +212,34 @@ u32 ShaderIR::DecodeMemory(NodeBlock& bb, u32 pc) {
break; break;
} }
case OpCode::Id::ST_L: { case OpCode::Id::ST_L:
LOG_DEBUG(HW_GPU, "ST_L cache management mode: {}", LOG_DEBUG(HW_GPU, "ST_L cache management mode: {}",
static_cast<u64>(instr.st_l.cache_management.Value())); static_cast<u64>(instr.st_l.cache_management.Value()));
[[fallthrough]];
const auto GetLmemAddr = [&](s32 offset) { case OpCode::Id::ST_S: {
const auto GetAddress = [&](s32 offset) {
ASSERT(offset % 4 == 0); ASSERT(offset % 4 == 0);
const Node immediate = Immediate(static_cast<s32>(instr.smem_imm) + offset); const Node immediate = Immediate(static_cast<s32>(instr.smem_imm) + offset);
return Operation(OperationCode::IAdd, NO_PRECISE, GetRegister(instr.gpr8), immediate); return Operation(OperationCode::IAdd, NO_PRECISE, GetRegister(instr.gpr8), immediate);
}; };
const auto set_memory = opcode->get().GetId() == OpCode::Id::ST_L
? &ShaderIR::SetLocalMemory
: &ShaderIR::SetSharedMemory;
switch (instr.ldst_sl.type.Value()) { switch (instr.ldst_sl.type.Value()) {
case Tegra::Shader::StoreType::Bits128: case Tegra::Shader::StoreType::Bits128:
SetLocalMemory(bb, GetLmemAddr(12), GetRegister(instr.gpr0.Value() + 3)); (this->*set_memory)(bb, GetAddress(12), GetRegister(instr.gpr0.Value() + 3));
SetLocalMemory(bb, GetLmemAddr(8), GetRegister(instr.gpr0.Value() + 2)); (this->*set_memory)(bb, GetAddress(8), GetRegister(instr.gpr0.Value() + 2));
[[fallthrough]];
case Tegra::Shader::StoreType::Bits64: case Tegra::Shader::StoreType::Bits64:
SetLocalMemory(bb, GetLmemAddr(4), GetRegister(instr.gpr0.Value() + 1)); (this->*set_memory)(bb, GetAddress(4), GetRegister(instr.gpr0.Value() + 1));
[[fallthrough]];
case Tegra::Shader::StoreType::Bits32: case Tegra::Shader::StoreType::Bits32:
SetLocalMemory(bb, GetLmemAddr(0), GetRegister(instr.gpr0)); (this->*set_memory)(bb, GetAddress(0), GetRegister(instr.gpr0));
break; break;
default: default:
UNIMPLEMENTED_MSG("ST_L Unhandled type: {}", UNIMPLEMENTED_MSG("{} unhandled type: {}", opcode->get().GetName(),
static_cast<u32>(instr.ldst_sl.type.Value())); static_cast<u32>(instr.ldst_sl.type.Value()));
} }
break; break;

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@ -206,12 +206,13 @@ class PredicateNode;
class AbufNode; class AbufNode;
class CbufNode; class CbufNode;
class LmemNode; class LmemNode;
class SmemNode;
class GmemNode; class GmemNode;
class CommentNode; class CommentNode;
using NodeData = using NodeData =
std::variant<OperationNode, ConditionalNode, GprNode, ImmediateNode, InternalFlagNode, std::variant<OperationNode, ConditionalNode, GprNode, ImmediateNode, InternalFlagNode,
PredicateNode, AbufNode, CbufNode, LmemNode, GmemNode, CommentNode>; PredicateNode, AbufNode, CbufNode, LmemNode, SmemNode, GmemNode, CommentNode>;
using Node = std::shared_ptr<NodeData>; using Node = std::shared_ptr<NodeData>;
using Node4 = std::array<Node, 4>; using Node4 = std::array<Node, 4>;
using NodeBlock = std::vector<Node>; using NodeBlock = std::vector<Node>;
@ -583,6 +584,19 @@ private:
Node address; Node address;
}; };
/// Shared memory node
class SmemNode final {
public:
explicit SmemNode(Node address) : address{std::move(address)} {}
const Node& GetAddress() const {
return address;
}
private:
Node address;
};
/// Global memory node /// Global memory node
class GmemNode final { class GmemNode final {
public: public:

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@ -137,6 +137,10 @@ Node ShaderIR::GetLocalMemory(Node address) {
return MakeNode<LmemNode>(std::move(address)); return MakeNode<LmemNode>(std::move(address));
} }
Node ShaderIR::GetSharedMemory(Node address) {
return MakeNode<SmemNode>(std::move(address));
}
Node ShaderIR::GetTemporary(u32 id) { Node ShaderIR::GetTemporary(u32 id) {
return GetRegister(Register::ZeroIndex + 1 + id); return GetRegister(Register::ZeroIndex + 1 + id);
} }
@ -378,6 +382,11 @@ void ShaderIR::SetLocalMemory(NodeBlock& bb, Node address, Node value) {
Operation(OperationCode::Assign, GetLocalMemory(std::move(address)), std::move(value))); Operation(OperationCode::Assign, GetLocalMemory(std::move(address)), std::move(value)));
} }
void ShaderIR::SetSharedMemory(NodeBlock& bb, Node address, Node value) {
bb.push_back(
Operation(OperationCode::Assign, GetSharedMemory(std::move(address)), std::move(value)));
}
void ShaderIR::SetTemporary(NodeBlock& bb, u32 id, Node value) { void ShaderIR::SetTemporary(NodeBlock& bb, u32 id, Node value) {
SetRegister(bb, Register::ZeroIndex + 1 + id, std::move(value)); SetRegister(bb, Register::ZeroIndex + 1 + id, std::move(value));
} }

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@ -208,6 +208,8 @@ private:
Node GetInternalFlag(InternalFlag flag, bool negated = false); Node GetInternalFlag(InternalFlag flag, bool negated = false);
/// Generates a node representing a local memory address /// Generates a node representing a local memory address
Node GetLocalMemory(Node address); Node GetLocalMemory(Node address);
/// Generates a node representing a shared memory address
Node GetSharedMemory(Node address);
/// Generates a temporary, internally it uses a post-RZ register /// Generates a temporary, internally it uses a post-RZ register
Node GetTemporary(u32 id); Node GetTemporary(u32 id);
@ -217,8 +219,10 @@ private:
void SetPredicate(NodeBlock& bb, u64 dest, Node src); void SetPredicate(NodeBlock& bb, u64 dest, Node src);
/// Sets an internal flag. src value must be a bool-evaluated node /// Sets an internal flag. src value must be a bool-evaluated node
void SetInternalFlag(NodeBlock& bb, InternalFlag flag, Node value); void SetInternalFlag(NodeBlock& bb, InternalFlag flag, Node value);
/// Sets a local memory address. address and value must be a number-evaluated node /// Sets a local memory address with a value.
void SetLocalMemory(NodeBlock& bb, Node address, Node value); void SetLocalMemory(NodeBlock& bb, Node address, Node value);
/// Sets a shared memory address with a value.
void SetSharedMemory(NodeBlock& bb, Node address, Node value);
/// Sets a temporary. Internally it uses a post-RZ register /// Sets a temporary. Internally it uses a post-RZ register
void SetTemporary(NodeBlock& bb, u32 id, Node value); void SetTemporary(NodeBlock& bb, u32 id, Node value);