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shader_ir: Implement ST_S

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This instruction writes to a memory buffer shared with threads within
the same work group. It is known as "shared" memory in GLSL.
This commit is contained in:
ReinUsesLisp 2019-07-30 00:21:46 -03:00
parent 953d49810a
commit f17415d431
4 changed files with 45 additions and 11 deletions
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25
src/video_core/shader/decode/memory.cpp
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@ -35,7 +35,7 @@ u32 GetUniformTypeElementsCount(Tegra::Shader::UniformType uniform_type) {
return 1;
}
}
} // namespace
} // Anonymous namespace
u32 ShaderIR::DecodeMemory(NodeBlock& bb, u32 pc) {
const Instruction instr = {program_code[pc]};
@ -209,27 +209,34 @@ u32 ShaderIR::DecodeMemory(NodeBlock& bb, u32 pc) {
break;
}
case OpCode::Id::ST_L: {
case OpCode::Id::ST_L:
LOG_DEBUG(HW_GPU, "ST_L cache management mode: {}",
static_cast<u64>(instr.st_l.cache_management.Value()));
const auto GetLmemAddr = [&](s32 offset) {
[[fallthrough]];
case OpCode::Id::ST_S: {
const auto GetAddress = [&](s32 offset) {
ASSERT(offset % 4 == 0);
const Node immediate = Immediate(static_cast<s32>(instr.smem_imm) + offset);
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()) {
case Tegra::Shader::StoreType::Bits128:
SetLocalMemory(bb, GetLmemAddr(12), GetRegister(instr.gpr0.Value() + 3));
SetLocalMemory(bb, GetLmemAddr(8), GetRegister(instr.gpr0.Value() + 2));
(this->*set_memory)(bb, GetAddress(12), GetRegister(instr.gpr0.Value() + 3));
(this->*set_memory)(bb, GetAddress(8), GetRegister(instr.gpr0.Value() + 2));
[[fallthrough]];
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:
SetLocalMemory(bb, GetLmemAddr(0), GetRegister(instr.gpr0));
(this->*set_memory)(bb, GetAddress(0), GetRegister(instr.gpr0));
break;
default:
UNIMPLEMENTED_MSG("ST_L Unhandled type: {}",
UNIMPLEMENTED_MSG("{} unhandled type: {}", opcode->get().GetName(),
static_cast<u32>(instr.ldst_sl.type.Value()));
}
break;