diff options
Diffstat (limited to 'src/video_core/engines/maxwell_dma.h')
-rw-r--r-- | src/video_core/engines/maxwell_dma.h | 155 |
1 files changed, 155 insertions, 0 deletions
diff --git a/src/video_core/engines/maxwell_dma.h b/src/video_core/engines/maxwell_dma.h new file mode 100644 index 000000000..905749bde --- /dev/null +++ b/src/video_core/engines/maxwell_dma.h @@ -0,0 +1,155 @@ +// Copyright 2018 yuzu Emulator Project +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#pragma once + +#include <array> +#include "common/assert.h" +#include "common/bit_field.h" +#include "common/common_funcs.h" +#include "common/common_types.h" +#include "video_core/gpu.h" +#include "video_core/memory_manager.h" + +namespace Tegra { +namespace Engines { + +class MaxwellDMA final { +public: + explicit MaxwellDMA(MemoryManager& memory_manager); + ~MaxwellDMA() = default; + + /// Write the value to the register identified by method. + void WriteReg(u32 method, u32 value); + + struct Regs { + static constexpr 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 1 << block_height; + } + }; + + static_assert(sizeof(Parameters) == 24, "Parameters has wrong size"); + + 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_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_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_PADDING_WORDS(0xBB); + + Parameters dst_params; + + INSERT_PADDING_WORDS(1); + + Parameters src_params; + + INSERT_PADDING_WORDS(0x13); + }; + std::array<u32, NUM_REGS> reg_array; + }; + } regs{}; + + MemoryManager& memory_manager; + +private: + /// 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(dst_params, 0x1C3); +ASSERT_REG_POSITION(src_params, 0x1CA); + +#undef ASSERT_REG_POSITION + +} // namespace Engines +} // namespace Tegra |