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// Copyright 2018 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#pragma once
#include <array>
#include <cstddef>
#include <vector>
#include "common/bit_field.h"
#include "common/common_funcs.h"
#include "common/common_types.h"
#include "video_core/gpu.h"
namespace Core {
class System;
}
namespace Tegra {
class MemoryManager;
}
namespace Tegra::Engines {
/**
* This Engine is known as GK104_Copy. Documentation can be found in:
* https://github.com/envytools/envytools/blob/master/rnndb/fifo/gk104_copy.xml
*/
class MaxwellDMA final {
public:
explicit MaxwellDMA(Core::System& system, MemoryManager& memory_manager);
~MaxwellDMA() = default;
/// Write the value to the register identified by method.
void CallMethod(const GPU::MethodCall& method_call);
/// Write multiple values to the register identified by method.
void CallMultiMethod(u32 method, const u32* base_start, u32 amount, u32 methods_pending);
struct Regs {
static constexpr std::size_t NUM_REGS = 0x1D6;
struct Parameters {
union {
BitField<0, 4, u32> block_depth;
BitField<4, 4, u32> block_height;
BitField<8, 4, u32> block_width;
};
u32 size_x;
u32 size_y;
u32 size_z;
u32 pos_z;
union {
BitField<0, 16, u32> pos_x;
BitField<16, 16, u32> pos_y;
};
u32 BlockHeight() const {
return block_height.Value();
}
u32 BlockDepth() const {
return block_depth.Value();
}
};
static_assert(sizeof(Parameters) == 24, "Parameters has wrong size");
enum class ComponentMode : u32 {
Src0 = 0,
Src1 = 1,
Src2 = 2,
Src3 = 3,
Const0 = 4,
Const1 = 5,
Zero = 6,
};
enum class CopyMode : u32 {
None = 0,
Unk1 = 1,
Unk2 = 2,
};
enum class QueryMode : u32 {
None = 0,
Short = 1,
Long = 2,
};
enum class QueryIntr : u32 {
None = 0,
Block = 1,
NonBlock = 2,
};
union {
struct {
INSERT_UNION_PADDING_WORDS(0xC0);
struct {
union {
BitField<0, 2, CopyMode> copy_mode;
BitField<2, 1, u32> flush;
BitField<3, 2, QueryMode> query_mode;
BitField<5, 2, QueryIntr> query_intr;
BitField<7, 1, u32> is_src_linear;
BitField<8, 1, u32> is_dst_linear;
BitField<9, 1, u32> enable_2d;
BitField<10, 1, u32> enable_swizzle;
};
} exec;
INSERT_UNION_PADDING_WORDS(0x3F);
struct {
u32 address_high;
u32 address_low;
GPUVAddr Address() const {
return static_cast<GPUVAddr>((static_cast<GPUVAddr>(address_high) << 32) |
address_low);
}
} src_address;
struct {
u32 address_high;
u32 address_low;
GPUVAddr Address() const {
return static_cast<GPUVAddr>((static_cast<GPUVAddr>(address_high) << 32) |
address_low);
}
} dst_address;
u32 src_pitch;
u32 dst_pitch;
u32 x_count;
u32 y_count;
INSERT_UNION_PADDING_WORDS(0xB8);
u32 const0;
u32 const1;
union {
BitField<0, 4, ComponentMode> component0;
BitField<4, 4, ComponentMode> component1;
BitField<8, 4, ComponentMode> component2;
BitField<12, 4, ComponentMode> component3;
BitField<16, 2, u32> component_size;
BitField<20, 3, u32> src_num_components;
BitField<24, 3, u32> dst_num_components;
u32 SrcBytePerPixel() const {
return src_num_components.Value() * component_size.Value();
}
u32 DstBytePerPixel() const {
return dst_num_components.Value() * component_size.Value();
}
} swizzle_config;
Parameters dst_params;
INSERT_UNION_PADDING_WORDS(1);
Parameters src_params;
INSERT_UNION_PADDING_WORDS(0x13);
};
std::array<u32, NUM_REGS> reg_array;
};
} regs{};
private:
Core::System& system;
MemoryManager& memory_manager;
std::vector<u8> read_buffer;
std::vector<u8> write_buffer;
/// Performs the copy from the source buffer to the destination buffer as configured in the
/// registers.
void HandleCopy();
};
#define ASSERT_REG_POSITION(field_name, position) \
static_assert(offsetof(MaxwellDMA::Regs, field_name) == position * 4, \
"Field " #field_name " has invalid position")
ASSERT_REG_POSITION(exec, 0xC0);
ASSERT_REG_POSITION(src_address, 0x100);
ASSERT_REG_POSITION(dst_address, 0x102);
ASSERT_REG_POSITION(src_pitch, 0x104);
ASSERT_REG_POSITION(dst_pitch, 0x105);
ASSERT_REG_POSITION(x_count, 0x106);
ASSERT_REG_POSITION(y_count, 0x107);
ASSERT_REG_POSITION(const0, 0x1C0);
ASSERT_REG_POSITION(const1, 0x1C1);
ASSERT_REG_POSITION(swizzle_config, 0x1C2);
ASSERT_REG_POSITION(dst_params, 0x1C3);
ASSERT_REG_POSITION(src_params, 0x1CA);
#undef ASSERT_REG_POSITION
} // namespace Tegra::Engines
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