mirror of
https://github.com/yuzu-mirror/yuzu.git
synced 2024-09-08 07:29:08 +01:00
Merge pull request #288 from Subv/macro_interpreter
GPU: Implemented a gpu macro interpreter
This commit is contained in:
commit
3413f1f7ce
5 changed files with 444 additions and 121 deletions
|
@ -11,6 +11,8 @@ add_library(video_core STATIC
|
||||||
engines/maxwell_compute.h
|
engines/maxwell_compute.h
|
||||||
gpu.cpp
|
gpu.cpp
|
||||||
gpu.h
|
gpu.h
|
||||||
|
macro_interpreter.cpp
|
||||||
|
macro_interpreter.h
|
||||||
memory_manager.cpp
|
memory_manager.cpp
|
||||||
memory_manager.h
|
memory_manager.h
|
||||||
rasterizer_interface.h
|
rasterizer_interface.h
|
||||||
|
|
|
@ -19,35 +19,21 @@ namespace Engines {
|
||||||
/// First register id that is actually a Macro call.
|
/// First register id that is actually a Macro call.
|
||||||
constexpr u32 MacroRegistersStart = 0xE00;
|
constexpr u32 MacroRegistersStart = 0xE00;
|
||||||
|
|
||||||
const std::unordered_map<u32, Maxwell3D::MethodInfo> Maxwell3D::method_handlers = {
|
Maxwell3D::Maxwell3D(MemoryManager& memory_manager)
|
||||||
{0xE1A, {"BindTextureInfoBuffer", 1, &Maxwell3D::BindTextureInfoBuffer}},
|
: memory_manager(memory_manager), macro_interpreter(*this) {}
|
||||||
{0xE24, {"SetShader", 5, &Maxwell3D::SetShader}},
|
|
||||||
{0xE2A, {"BindStorageBuffer", 1, &Maxwell3D::BindStorageBuffer}},
|
|
||||||
};
|
|
||||||
|
|
||||||
Maxwell3D::Maxwell3D(MemoryManager& memory_manager) : memory_manager(memory_manager) {}
|
|
||||||
|
|
||||||
void Maxwell3D::SubmitMacroCode(u32 entry, std::vector<u32> code) {
|
void Maxwell3D::SubmitMacroCode(u32 entry, std::vector<u32> code) {
|
||||||
uploaded_macros[entry * 2 + MacroRegistersStart] = std::move(code);
|
uploaded_macros[entry * 2 + MacroRegistersStart] = std::move(code);
|
||||||
}
|
}
|
||||||
|
|
||||||
void Maxwell3D::CallMacroMethod(u32 method, const std::vector<u32>& parameters) {
|
void Maxwell3D::CallMacroMethod(u32 method, std::vector<u32> parameters) {
|
||||||
// TODO(Subv): Write an interpreter for the macros uploaded via registers 0x45 and 0x47
|
auto macro_code = uploaded_macros.find(method);
|
||||||
|
|
||||||
// The requested macro must have been uploaded already.
|
// The requested macro must have been uploaded already.
|
||||||
ASSERT_MSG(uploaded_macros.find(method) != uploaded_macros.end(), "Macro %08X was not uploaded",
|
ASSERT_MSG(macro_code != uploaded_macros.end(), "Macro %08X was not uploaded", method);
|
||||||
method);
|
|
||||||
|
|
||||||
auto itr = method_handlers.find(method);
|
// Reset the current macro and execute it.
|
||||||
ASSERT_MSG(itr != method_handlers.end(), "Unhandled method call %08X", method);
|
|
||||||
|
|
||||||
ASSERT(itr->second.arguments == parameters.size());
|
|
||||||
|
|
||||||
(this->*itr->second.handler)(parameters);
|
|
||||||
|
|
||||||
// Reset the current macro and its parameters.
|
|
||||||
executing_macro = 0;
|
executing_macro = 0;
|
||||||
macro_params.clear();
|
macro_interpreter.Execute(macro_code->second, std::move(parameters));
|
||||||
}
|
}
|
||||||
|
|
||||||
void Maxwell3D::WriteReg(u32 method, u32 value, u32 remaining_params) {
|
void Maxwell3D::WriteReg(u32 method, u32 value, u32 remaining_params) {
|
||||||
|
@ -77,7 +63,7 @@ void Maxwell3D::WriteReg(u32 method, u32 value, u32 remaining_params) {
|
||||||
|
|
||||||
// Call the macro when there are no more parameters in the command buffer
|
// Call the macro when there are no more parameters in the command buffer
|
||||||
if (remaining_params == 0) {
|
if (remaining_params == 0) {
|
||||||
CallMacroMethod(executing_macro, macro_params);
|
CallMacroMethod(executing_macro, std::move(macro_params));
|
||||||
}
|
}
|
||||||
return;
|
return;
|
||||||
}
|
}
|
||||||
|
@ -193,84 +179,6 @@ void Maxwell3D::DrawArrays() {
|
||||||
VideoCore::g_renderer->Rasterizer()->AccelerateDrawBatch(false /*is_indexed*/);
|
VideoCore::g_renderer->Rasterizer()->AccelerateDrawBatch(false /*is_indexed*/);
|
||||||
}
|
}
|
||||||
|
|
||||||
void Maxwell3D::BindTextureInfoBuffer(const std::vector<u32>& parameters) {
|
|
||||||
/**
|
|
||||||
* Parameters description:
|
|
||||||
* [0] = Shader stage, usually 4 for FragmentShader
|
|
||||||
*/
|
|
||||||
|
|
||||||
u32 stage = parameters[0];
|
|
||||||
|
|
||||||
// Perform the same operations as the real macro code.
|
|
||||||
GPUVAddr address = static_cast<GPUVAddr>(regs.tex_info_buffers.address[stage]) << 8;
|
|
||||||
u32 size = regs.tex_info_buffers.size[stage];
|
|
||||||
|
|
||||||
regs.const_buffer.cb_size = size;
|
|
||||||
regs.const_buffer.cb_address_high = address >> 32;
|
|
||||||
regs.const_buffer.cb_address_low = address & 0xFFFFFFFF;
|
|
||||||
}
|
|
||||||
|
|
||||||
void Maxwell3D::SetShader(const std::vector<u32>& parameters) {
|
|
||||||
/**
|
|
||||||
* Parameters description:
|
|
||||||
* [0] = Shader Program.
|
|
||||||
* [1] = Unknown, presumably the shader id.
|
|
||||||
* [2] = Offset to the start of the shader, after the 0x30 bytes header.
|
|
||||||
* [3] = Shader Stage.
|
|
||||||
* [4] = Const Buffer Address >> 8.
|
|
||||||
*/
|
|
||||||
auto shader_program = static_cast<Regs::ShaderProgram>(parameters[0]);
|
|
||||||
// TODO(Subv): This address is probably an offset from the CODE_ADDRESS register.
|
|
||||||
GPUVAddr address = parameters[2];
|
|
||||||
auto shader_stage = static_cast<Regs::ShaderStage>(parameters[3]);
|
|
||||||
GPUVAddr cb_address = parameters[4] << 8;
|
|
||||||
|
|
||||||
auto& shader = state.shader_programs[static_cast<size_t>(shader_program)];
|
|
||||||
shader.program = shader_program;
|
|
||||||
shader.stage = shader_stage;
|
|
||||||
shader.address = address;
|
|
||||||
|
|
||||||
// Perform the same operations as the real macro code.
|
|
||||||
// TODO(Subv): Early exit if register 0xD1C + shader_program contains the same as params[1].
|
|
||||||
auto& shader_regs = regs.shader_config[static_cast<size_t>(shader_program)];
|
|
||||||
shader_regs.start_id = address;
|
|
||||||
// TODO(Subv): Write params[1] to register 0xD1C + shader_program.
|
|
||||||
// TODO(Subv): Write params[2] to register 0xD22 + shader_program.
|
|
||||||
|
|
||||||
// Note: This value is hardcoded in the macro's code.
|
|
||||||
static constexpr u32 DefaultCBSize = 0x10000;
|
|
||||||
regs.const_buffer.cb_size = DefaultCBSize;
|
|
||||||
regs.const_buffer.cb_address_high = cb_address >> 32;
|
|
||||||
regs.const_buffer.cb_address_low = cb_address & 0xFFFFFFFF;
|
|
||||||
|
|
||||||
// Write a hardcoded 0x11 to CB_BIND, this binds the current const buffer to buffer c1[] in the
|
|
||||||
// shader. It's likely that these are the constants for the shader.
|
|
||||||
regs.cb_bind[static_cast<size_t>(shader_stage)].valid.Assign(1);
|
|
||||||
regs.cb_bind[static_cast<size_t>(shader_stage)].index.Assign(1);
|
|
||||||
|
|
||||||
ProcessCBBind(shader_stage);
|
|
||||||
}
|
|
||||||
|
|
||||||
void Maxwell3D::BindStorageBuffer(const std::vector<u32>& parameters) {
|
|
||||||
/**
|
|
||||||
* Parameters description:
|
|
||||||
* [0] = Buffer offset >> 2
|
|
||||||
*/
|
|
||||||
|
|
||||||
u32 buffer_offset = parameters[0] << 2;
|
|
||||||
|
|
||||||
// Perform the same operations as the real macro code.
|
|
||||||
// Note: This value is hardcoded in the macro's code.
|
|
||||||
static constexpr u32 DefaultCBSize = 0x5F00;
|
|
||||||
regs.const_buffer.cb_size = DefaultCBSize;
|
|
||||||
|
|
||||||
GPUVAddr address = regs.ssbo_info.BufferAddress();
|
|
||||||
regs.const_buffer.cb_address_high = address >> 32;
|
|
||||||
regs.const_buffer.cb_address_low = address & 0xFFFFFFFF;
|
|
||||||
|
|
||||||
regs.const_buffer.cb_pos = buffer_offset;
|
|
||||||
}
|
|
||||||
|
|
||||||
void Maxwell3D::ProcessCBBind(Regs::ShaderStage stage) {
|
void Maxwell3D::ProcessCBBind(Regs::ShaderStage stage) {
|
||||||
// Bind the buffer currently in CB_ADDRESS to the specified index in the desired shader stage.
|
// Bind the buffer currently in CB_ADDRESS to the specified index in the desired shader stage.
|
||||||
auto& shader = state.shader_stages[static_cast<size_t>(stage)];
|
auto& shader = state.shader_stages[static_cast<size_t>(stage)];
|
||||||
|
@ -386,5 +294,10 @@ std::vector<Texture::FullTextureInfo> Maxwell3D::GetStageTextures(Regs::ShaderSt
|
||||||
return textures;
|
return textures;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
u32 Maxwell3D::GetRegisterValue(u32 method) const {
|
||||||
|
ASSERT_MSG(method < Regs::NUM_REGS, "Invalid Maxwell3D register");
|
||||||
|
return regs.reg_array[method];
|
||||||
|
}
|
||||||
|
|
||||||
} // namespace Engines
|
} // namespace Engines
|
||||||
} // namespace Tegra
|
} // namespace Tegra
|
||||||
|
|
|
@ -13,6 +13,7 @@
|
||||||
#include "common/common_types.h"
|
#include "common/common_types.h"
|
||||||
#include "common/math_util.h"
|
#include "common/math_util.h"
|
||||||
#include "video_core/gpu.h"
|
#include "video_core/gpu.h"
|
||||||
|
#include "video_core/macro_interpreter.h"
|
||||||
#include "video_core/memory_manager.h"
|
#include "video_core/memory_manager.h"
|
||||||
#include "video_core/textures/texture.h"
|
#include "video_core/textures/texture.h"
|
||||||
|
|
||||||
|
@ -498,22 +499,18 @@ public:
|
||||||
bool enabled;
|
bool enabled;
|
||||||
};
|
};
|
||||||
|
|
||||||
struct ShaderProgramInfo {
|
|
||||||
Regs::ShaderStage stage;
|
|
||||||
Regs::ShaderProgram program;
|
|
||||||
GPUVAddr address;
|
|
||||||
};
|
|
||||||
|
|
||||||
struct ShaderStageInfo {
|
struct ShaderStageInfo {
|
||||||
std::array<ConstBufferInfo, Regs::MaxConstBuffers> const_buffers;
|
std::array<ConstBufferInfo, Regs::MaxConstBuffers> const_buffers;
|
||||||
};
|
};
|
||||||
|
|
||||||
std::array<ShaderStageInfo, Regs::MaxShaderStage> shader_stages;
|
std::array<ShaderStageInfo, Regs::MaxShaderStage> shader_stages;
|
||||||
std::array<ShaderProgramInfo, Regs::MaxShaderProgram> shader_programs;
|
|
||||||
};
|
};
|
||||||
|
|
||||||
State state{};
|
State state{};
|
||||||
|
|
||||||
|
/// Reads a register value located at the input method address
|
||||||
|
u32 GetRegisterValue(u32 method) const;
|
||||||
|
|
||||||
/// Write the value to the register identified by method.
|
/// Write the value to the register identified by method.
|
||||||
void WriteReg(u32 method, u32 value, u32 remaining_params);
|
void WriteReg(u32 method, u32 value, u32 remaining_params);
|
||||||
|
|
||||||
|
@ -533,6 +530,9 @@ private:
|
||||||
/// Parameters that have been submitted to the macro call so far.
|
/// Parameters that have been submitted to the macro call so far.
|
||||||
std::vector<u32> macro_params;
|
std::vector<u32> macro_params;
|
||||||
|
|
||||||
|
/// Interpreter for the macro codes uploaded to the GPU.
|
||||||
|
MacroInterpreter macro_interpreter;
|
||||||
|
|
||||||
/// Retrieves information about a specific TIC entry from the TIC buffer.
|
/// Retrieves information about a specific TIC entry from the TIC buffer.
|
||||||
Texture::TICEntry GetTICEntry(u32 tic_index) const;
|
Texture::TICEntry GetTICEntry(u32 tic_index) const;
|
||||||
|
|
||||||
|
@ -544,7 +544,7 @@ private:
|
||||||
* @param method Method to call
|
* @param method Method to call
|
||||||
* @param parameters Arguments to the method call
|
* @param parameters Arguments to the method call
|
||||||
*/
|
*/
|
||||||
void CallMacroMethod(u32 method, const std::vector<u32>& parameters);
|
void CallMacroMethod(u32 method, std::vector<u32> parameters);
|
||||||
|
|
||||||
/// Handles a write to the QUERY_GET register.
|
/// Handles a write to the QUERY_GET register.
|
||||||
void ProcessQueryGet();
|
void ProcessQueryGet();
|
||||||
|
@ -557,19 +557,6 @@ private:
|
||||||
|
|
||||||
/// Handles a write to the VERTEX_END_GL register, triggering a draw.
|
/// Handles a write to the VERTEX_END_GL register, triggering a draw.
|
||||||
void DrawArrays();
|
void DrawArrays();
|
||||||
|
|
||||||
/// Method call handlers
|
|
||||||
void BindTextureInfoBuffer(const std::vector<u32>& parameters);
|
|
||||||
void SetShader(const std::vector<u32>& parameters);
|
|
||||||
void BindStorageBuffer(const std::vector<u32>& parameters);
|
|
||||||
|
|
||||||
struct MethodInfo {
|
|
||||||
const char* name;
|
|
||||||
u32 arguments;
|
|
||||||
void (Maxwell3D::*handler)(const std::vector<u32>& parameters);
|
|
||||||
};
|
|
||||||
|
|
||||||
static const std::unordered_map<u32, MethodInfo> method_handlers;
|
|
||||||
};
|
};
|
||||||
|
|
||||||
#define ASSERT_REG_POSITION(field_name, position) \
|
#define ASSERT_REG_POSITION(field_name, position) \
|
||||||
|
|
257
src/video_core/macro_interpreter.cpp
Normal file
257
src/video_core/macro_interpreter.cpp
Normal file
|
@ -0,0 +1,257 @@
|
||||||
|
// Copyright 2018 yuzu Emulator Project
|
||||||
|
// Licensed under GPLv2 or any later version
|
||||||
|
// Refer to the license.txt file included.
|
||||||
|
|
||||||
|
#include "common/assert.h"
|
||||||
|
#include "common/logging/log.h"
|
||||||
|
#include "video_core/engines/maxwell_3d.h"
|
||||||
|
#include "video_core/macro_interpreter.h"
|
||||||
|
|
||||||
|
namespace Tegra {
|
||||||
|
|
||||||
|
MacroInterpreter::MacroInterpreter(Engines::Maxwell3D& maxwell3d) : maxwell3d(maxwell3d) {}
|
||||||
|
|
||||||
|
void MacroInterpreter::Execute(const std::vector<u32>& code, std::vector<u32> parameters) {
|
||||||
|
Reset();
|
||||||
|
registers[1] = parameters[0];
|
||||||
|
this->parameters = std::move(parameters);
|
||||||
|
|
||||||
|
// Execute the code until we hit an exit condition.
|
||||||
|
bool keep_executing = true;
|
||||||
|
while (keep_executing) {
|
||||||
|
keep_executing = Step(code, false);
|
||||||
|
}
|
||||||
|
|
||||||
|
// Assert the the macro used all the input parameters
|
||||||
|
ASSERT(next_parameter_index == this->parameters.size());
|
||||||
|
}
|
||||||
|
|
||||||
|
void MacroInterpreter::Reset() {
|
||||||
|
registers = {};
|
||||||
|
pc = 0;
|
||||||
|
delayed_pc = boost::none;
|
||||||
|
method_address.raw = 0;
|
||||||
|
parameters.clear();
|
||||||
|
// The next parameter index starts at 1, because $r1 already has the value of the first
|
||||||
|
// parameter.
|
||||||
|
next_parameter_index = 1;
|
||||||
|
}
|
||||||
|
|
||||||
|
bool MacroInterpreter::Step(const std::vector<u32>& code, bool is_delay_slot) {
|
||||||
|
u32 base_address = pc;
|
||||||
|
|
||||||
|
Opcode opcode = GetOpcode(code);
|
||||||
|
pc += 4;
|
||||||
|
|
||||||
|
// Update the program counter if we were delayed
|
||||||
|
if (delayed_pc != boost::none) {
|
||||||
|
ASSERT(is_delay_slot);
|
||||||
|
pc = *delayed_pc;
|
||||||
|
delayed_pc = boost::none;
|
||||||
|
}
|
||||||
|
|
||||||
|
switch (opcode.operation) {
|
||||||
|
case Operation::ALU: {
|
||||||
|
u32 result = GetALUResult(opcode.alu_operation, GetRegister(opcode.src_a),
|
||||||
|
GetRegister(opcode.src_b));
|
||||||
|
ProcessResult(opcode.result_operation, opcode.dst, result);
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
case Operation::AddImmediate: {
|
||||||
|
ProcessResult(opcode.result_operation, opcode.dst,
|
||||||
|
GetRegister(opcode.src_a) + opcode.immediate);
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
case Operation::ExtractInsert: {
|
||||||
|
u32 dst = GetRegister(opcode.src_a);
|
||||||
|
u32 src = GetRegister(opcode.src_b);
|
||||||
|
|
||||||
|
src = (src >> opcode.bf_src_bit) & opcode.GetBitfieldMask();
|
||||||
|
dst &= ~(opcode.GetBitfieldMask() << opcode.bf_dst_bit);
|
||||||
|
dst |= src << opcode.bf_dst_bit;
|
||||||
|
ProcessResult(opcode.result_operation, opcode.dst, dst);
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
case Operation::ExtractShiftLeftImmediate: {
|
||||||
|
u32 dst = GetRegister(opcode.src_a);
|
||||||
|
u32 src = GetRegister(opcode.src_b);
|
||||||
|
|
||||||
|
u32 result = ((src >> dst) & opcode.GetBitfieldMask()) << opcode.bf_dst_bit;
|
||||||
|
|
||||||
|
ProcessResult(opcode.result_operation, opcode.dst, result);
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
case Operation::ExtractShiftLeftRegister: {
|
||||||
|
u32 dst = GetRegister(opcode.src_a);
|
||||||
|
u32 src = GetRegister(opcode.src_b);
|
||||||
|
|
||||||
|
u32 result = ((src >> opcode.bf_src_bit) & opcode.GetBitfieldMask()) << dst;
|
||||||
|
|
||||||
|
ProcessResult(opcode.result_operation, opcode.dst, result);
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
case Operation::Read: {
|
||||||
|
u32 result = Read(GetRegister(opcode.src_a) + opcode.immediate);
|
||||||
|
ProcessResult(opcode.result_operation, opcode.dst, result);
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
case Operation::Branch: {
|
||||||
|
ASSERT_MSG(!is_delay_slot, "Executing a branch in a delay slot is not valid");
|
||||||
|
u32 value = GetRegister(opcode.src_a);
|
||||||
|
bool taken = EvaluateBranchCondition(opcode.branch_condition, value);
|
||||||
|
if (taken) {
|
||||||
|
// Ignore the delay slot if the branch has the annul bit.
|
||||||
|
if (opcode.branch_annul) {
|
||||||
|
pc = base_address + (opcode.immediate << 2);
|
||||||
|
return true;
|
||||||
|
}
|
||||||
|
|
||||||
|
delayed_pc = base_address + (opcode.immediate << 2);
|
||||||
|
// Execute one more instruction due to the delay slot.
|
||||||
|
return Step(code, true);
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
default:
|
||||||
|
UNIMPLEMENTED_MSG("Unimplemented macro operation %u",
|
||||||
|
static_cast<u32>(opcode.operation.Value()));
|
||||||
|
}
|
||||||
|
|
||||||
|
if (opcode.is_exit) {
|
||||||
|
// Exit has a delay slot, execute the next instruction
|
||||||
|
// Note: Executing an exit during a branch delay slot will cause the instruction at the
|
||||||
|
// branch target to be executed before exiting.
|
||||||
|
Step(code, true);
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
|
||||||
|
return true;
|
||||||
|
}
|
||||||
|
|
||||||
|
MacroInterpreter::Opcode MacroInterpreter::GetOpcode(const std::vector<u32>& code) const {
|
||||||
|
ASSERT((pc % sizeof(u32)) == 0);
|
||||||
|
ASSERT(pc < code.size() * sizeof(u32));
|
||||||
|
return {code[pc / sizeof(u32)]};
|
||||||
|
}
|
||||||
|
|
||||||
|
u32 MacroInterpreter::GetALUResult(ALUOperation operation, u32 src_a, u32 src_b) const {
|
||||||
|
switch (operation) {
|
||||||
|
case ALUOperation::Add:
|
||||||
|
return src_a + src_b;
|
||||||
|
// TODO(Subv): Implement AddWithCarry
|
||||||
|
case ALUOperation::Subtract:
|
||||||
|
return src_a - src_b;
|
||||||
|
// TODO(Subv): Implement SubtractWithBorrow
|
||||||
|
case ALUOperation::Xor:
|
||||||
|
return src_a ^ src_b;
|
||||||
|
case ALUOperation::Or:
|
||||||
|
return src_a | src_b;
|
||||||
|
case ALUOperation::And:
|
||||||
|
return src_a & src_b;
|
||||||
|
case ALUOperation::AndNot:
|
||||||
|
return src_a & ~src_b;
|
||||||
|
case ALUOperation::Nand:
|
||||||
|
return ~(src_a & src_b);
|
||||||
|
|
||||||
|
default:
|
||||||
|
UNIMPLEMENTED_MSG("Unimplemented ALU operation %u", static_cast<u32>(operation));
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
void MacroInterpreter::ProcessResult(ResultOperation operation, u32 reg, u32 result) {
|
||||||
|
switch (operation) {
|
||||||
|
case ResultOperation::IgnoreAndFetch:
|
||||||
|
// Fetch parameter and ignore result.
|
||||||
|
SetRegister(reg, FetchParameter());
|
||||||
|
break;
|
||||||
|
case ResultOperation::Move:
|
||||||
|
// Move result.
|
||||||
|
SetRegister(reg, result);
|
||||||
|
break;
|
||||||
|
case ResultOperation::MoveAndSetMethod:
|
||||||
|
// Move result and use as Method Address.
|
||||||
|
SetRegister(reg, result);
|
||||||
|
SetMethodAddress(result);
|
||||||
|
break;
|
||||||
|
case ResultOperation::FetchAndSend:
|
||||||
|
// Fetch parameter and send result.
|
||||||
|
SetRegister(reg, FetchParameter());
|
||||||
|
Send(result);
|
||||||
|
break;
|
||||||
|
case ResultOperation::MoveAndSend:
|
||||||
|
// Move and send result.
|
||||||
|
SetRegister(reg, result);
|
||||||
|
Send(result);
|
||||||
|
break;
|
||||||
|
case ResultOperation::FetchAndSetMethod:
|
||||||
|
// Fetch parameter and use result as Method Address.
|
||||||
|
SetRegister(reg, FetchParameter());
|
||||||
|
SetMethodAddress(result);
|
||||||
|
break;
|
||||||
|
case ResultOperation::MoveAndSetMethodFetchAndSend:
|
||||||
|
// Move result and use as Method Address, then fetch and send parameter.
|
||||||
|
SetRegister(reg, result);
|
||||||
|
SetMethodAddress(result);
|
||||||
|
Send(FetchParameter());
|
||||||
|
break;
|
||||||
|
case ResultOperation::MoveAndSetMethodSend:
|
||||||
|
// Move result and use as Method Address, then send bits 12:17 of result.
|
||||||
|
SetRegister(reg, result);
|
||||||
|
SetMethodAddress(result);
|
||||||
|
Send((result >> 12) & 0b111111);
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
UNIMPLEMENTED_MSG("Unimplemented result operation %u", static_cast<u32>(operation));
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
u32 MacroInterpreter::FetchParameter() {
|
||||||
|
ASSERT(next_parameter_index < parameters.size());
|
||||||
|
return parameters[next_parameter_index++];
|
||||||
|
}
|
||||||
|
|
||||||
|
u32 MacroInterpreter::GetRegister(u32 register_id) const {
|
||||||
|
// Register 0 is supposed to always return 0.
|
||||||
|
if (register_id == 0)
|
||||||
|
return 0;
|
||||||
|
|
||||||
|
ASSERT(register_id < registers.size());
|
||||||
|
return registers[register_id];
|
||||||
|
}
|
||||||
|
|
||||||
|
void MacroInterpreter::SetRegister(u32 register_id, u32 value) {
|
||||||
|
// Register 0 is supposed to always return 0. NOP is implemented as a store to the zero
|
||||||
|
// register.
|
||||||
|
if (register_id == 0)
|
||||||
|
return;
|
||||||
|
|
||||||
|
ASSERT(register_id < registers.size());
|
||||||
|
registers[register_id] = value;
|
||||||
|
}
|
||||||
|
|
||||||
|
void MacroInterpreter::SetMethodAddress(u32 address) {
|
||||||
|
method_address.raw = address;
|
||||||
|
}
|
||||||
|
|
||||||
|
void MacroInterpreter::Send(u32 value) {
|
||||||
|
maxwell3d.WriteReg(method_address.address, value, 0);
|
||||||
|
// Increment the method address by the method increment.
|
||||||
|
method_address.address.Assign(method_address.address.Value() +
|
||||||
|
method_address.increment.Value());
|
||||||
|
}
|
||||||
|
|
||||||
|
u32 MacroInterpreter::Read(u32 method) const {
|
||||||
|
return maxwell3d.GetRegisterValue(method);
|
||||||
|
}
|
||||||
|
|
||||||
|
bool MacroInterpreter::EvaluateBranchCondition(BranchCondition cond, u32 value) const {
|
||||||
|
switch (cond) {
|
||||||
|
case BranchCondition::Zero:
|
||||||
|
return value == 0;
|
||||||
|
case BranchCondition::NotZero:
|
||||||
|
return value != 0;
|
||||||
|
}
|
||||||
|
UNREACHABLE();
|
||||||
|
}
|
||||||
|
|
||||||
|
} // namespace Tegra
|
164
src/video_core/macro_interpreter.h
Normal file
164
src/video_core/macro_interpreter.h
Normal file
|
@ -0,0 +1,164 @@
|
||||||
|
// Copyright 2018 yuzu Emulator Project
|
||||||
|
// Licensed under GPLv2 or any later version
|
||||||
|
// Refer to the license.txt file included.
|
||||||
|
|
||||||
|
#pragma once
|
||||||
|
|
||||||
|
#include <array>
|
||||||
|
#include <vector>
|
||||||
|
#include <boost/optional.hpp>
|
||||||
|
#include "common/bit_field.h"
|
||||||
|
#include "common/common_types.h"
|
||||||
|
|
||||||
|
namespace Tegra {
|
||||||
|
namespace Engines {
|
||||||
|
class Maxwell3D;
|
||||||
|
}
|
||||||
|
|
||||||
|
class MacroInterpreter final {
|
||||||
|
public:
|
||||||
|
explicit MacroInterpreter(Engines::Maxwell3D& maxwell3d);
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Executes the macro code with the specified input parameters.
|
||||||
|
* @param code The macro byte code to execute
|
||||||
|
* @param parameters The parameters of the macro
|
||||||
|
*/
|
||||||
|
void Execute(const std::vector<u32>& code, std::vector<u32> parameters);
|
||||||
|
|
||||||
|
private:
|
||||||
|
enum class Operation : u32 {
|
||||||
|
ALU = 0,
|
||||||
|
AddImmediate = 1,
|
||||||
|
ExtractInsert = 2,
|
||||||
|
ExtractShiftLeftImmediate = 3,
|
||||||
|
ExtractShiftLeftRegister = 4,
|
||||||
|
Read = 5,
|
||||||
|
Unused = 6, // This operation doesn't seem to be a valid encoding.
|
||||||
|
Branch = 7,
|
||||||
|
};
|
||||||
|
|
||||||
|
enum class ALUOperation : u32 {
|
||||||
|
Add = 0,
|
||||||
|
AddWithCarry = 1,
|
||||||
|
Subtract = 2,
|
||||||
|
SubtractWithBorrow = 3,
|
||||||
|
// Operations 4-7 don't seem to be valid encodings.
|
||||||
|
Xor = 8,
|
||||||
|
Or = 9,
|
||||||
|
And = 10,
|
||||||
|
AndNot = 11,
|
||||||
|
Nand = 12
|
||||||
|
};
|
||||||
|
|
||||||
|
enum class ResultOperation : u32 {
|
||||||
|
IgnoreAndFetch = 0,
|
||||||
|
Move = 1,
|
||||||
|
MoveAndSetMethod = 2,
|
||||||
|
FetchAndSend = 3,
|
||||||
|
MoveAndSend = 4,
|
||||||
|
FetchAndSetMethod = 5,
|
||||||
|
MoveAndSetMethodFetchAndSend = 6,
|
||||||
|
MoveAndSetMethodSend = 7
|
||||||
|
};
|
||||||
|
|
||||||
|
enum class BranchCondition : u32 {
|
||||||
|
Zero = 0,
|
||||||
|
NotZero = 1,
|
||||||
|
};
|
||||||
|
|
||||||
|
union Opcode {
|
||||||
|
u32 raw;
|
||||||
|
BitField<0, 3, Operation> operation;
|
||||||
|
BitField<4, 3, ResultOperation> result_operation;
|
||||||
|
BitField<4, 1, BranchCondition> branch_condition;
|
||||||
|
BitField<5, 1, u32>
|
||||||
|
branch_annul; // If set on a branch, then the branch doesn't have a delay slot.
|
||||||
|
BitField<7, 1, u32> is_exit;
|
||||||
|
BitField<8, 3, u32> dst;
|
||||||
|
BitField<11, 3, u32> src_a;
|
||||||
|
BitField<14, 3, u32> src_b;
|
||||||
|
// The signed immediate overlaps the second source operand and the alu operation.
|
||||||
|
BitField<14, 18, s32> immediate;
|
||||||
|
|
||||||
|
BitField<17, 5, ALUOperation> alu_operation;
|
||||||
|
|
||||||
|
// Bitfield instructions data
|
||||||
|
BitField<17, 5, u32> bf_src_bit;
|
||||||
|
BitField<22, 5, u32> bf_size;
|
||||||
|
BitField<27, 5, u32> bf_dst_bit;
|
||||||
|
|
||||||
|
u32 GetBitfieldMask() const {
|
||||||
|
return (1 << bf_size) - 1;
|
||||||
|
}
|
||||||
|
};
|
||||||
|
|
||||||
|
union MethodAddress {
|
||||||
|
u32 raw;
|
||||||
|
BitField<0, 12, u32> address;
|
||||||
|
BitField<12, 6, u32> increment;
|
||||||
|
};
|
||||||
|
|
||||||
|
/// Resets the execution engine state, zeroing registers, etc.
|
||||||
|
void Reset();
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Executes a single macro instruction located at the current program counter. Returns whether
|
||||||
|
* the interpreter should keep running.
|
||||||
|
* @param code The macro code to execute.
|
||||||
|
* @param is_delay_slot Whether the current step is being executed due to a delay slot in a
|
||||||
|
* previous instruction.
|
||||||
|
*/
|
||||||
|
bool Step(const std::vector<u32>& code, bool is_delay_slot);
|
||||||
|
|
||||||
|
/// Calculates the result of an ALU operation. src_a OP src_b;
|
||||||
|
u32 GetALUResult(ALUOperation operation, u32 src_a, u32 src_b) const;
|
||||||
|
|
||||||
|
/// Performs the result operation on the input result and stores it in the specified register
|
||||||
|
/// (if necessary).
|
||||||
|
void ProcessResult(ResultOperation operation, u32 reg, u32 result);
|
||||||
|
|
||||||
|
/// Evaluates the branch condition and returns whether the branch should be taken or not.
|
||||||
|
bool EvaluateBranchCondition(BranchCondition cond, u32 value) const;
|
||||||
|
|
||||||
|
/// Reads an opcode at the current program counter location.
|
||||||
|
Opcode GetOpcode(const std::vector<u32>& code) const;
|
||||||
|
|
||||||
|
/// Returns the specified register's value. Register 0 is hardcoded to always return 0.
|
||||||
|
u32 GetRegister(u32 register_id) const;
|
||||||
|
|
||||||
|
/// Sets the register to the input value.
|
||||||
|
void SetRegister(u32 register_id, u32 value);
|
||||||
|
|
||||||
|
/// Sets the method address to use for the next Send instruction.
|
||||||
|
void SetMethodAddress(u32 address);
|
||||||
|
|
||||||
|
/// Calls a GPU Engine method with the input parameter.
|
||||||
|
void Send(u32 value);
|
||||||
|
|
||||||
|
/// Reads a GPU register located at the method address.
|
||||||
|
u32 Read(u32 method) const;
|
||||||
|
|
||||||
|
/// Returns the next parameter in the parameter queue.
|
||||||
|
u32 FetchParameter();
|
||||||
|
|
||||||
|
Engines::Maxwell3D& maxwell3d;
|
||||||
|
|
||||||
|
u32 pc; ///< Current program counter
|
||||||
|
boost::optional<u32>
|
||||||
|
delayed_pc; ///< Program counter to execute at after the delay slot is executed.
|
||||||
|
|
||||||
|
static constexpr size_t NumMacroRegisters = 8;
|
||||||
|
|
||||||
|
/// General purpose macro registers.
|
||||||
|
std::array<u32, NumMacroRegisters> registers = {};
|
||||||
|
|
||||||
|
/// Method address to use for the next Send instruction.
|
||||||
|
MethodAddress method_address = {};
|
||||||
|
|
||||||
|
/// Input parameters of the current macro.
|
||||||
|
std::vector<u32> parameters;
|
||||||
|
/// Index of the next parameter that will be fetched by the 'parm' instruction.
|
||||||
|
u32 next_parameter_index = 0;
|
||||||
|
};
|
||||||
|
} // namespace Tegra
|
Loading…
Reference in a new issue