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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/engines/const_buffer_engine_interface.h"
#include "video_core/engines/engine_upload.h"
#include "video_core/engines/shader_type.h"
#include "video_core/gpu.h"
#include "video_core/textures/texture.h"
namespace Core {
class System;
}
namespace Tegra {
class MemoryManager;
}
namespace VideoCore {
class RasterizerInterface;
}
namespace Tegra::Engines {
/**
* This Engine is known as GK104_Compute. Documentation can be found in:
* https://github.com/envytools/envytools/blob/master/rnndb/graph/gk104_compute.xml
* https://cgit.freedesktop.org/mesa/mesa/tree/src/gallium/drivers/nouveau/nvc0/nve4_compute.xml.h
*/
#define KEPLER_COMPUTE_REG_INDEX(field_name) \
(offsetof(Tegra::Engines::KeplerCompute::Regs, field_name) / sizeof(u32))
class KeplerCompute final : public ConstBufferEngineInterface {
public:
explicit KeplerCompute(Core::System& system, VideoCore::RasterizerInterface& rasterizer,
MemoryManager& memory_manager);
~KeplerCompute();
static constexpr std::size_t NumConstBuffers = 8;
struct Regs {
static constexpr std::size_t NUM_REGS = 0xCF8;
union {
struct {
INSERT_UNION_PADDING_WORDS(0x60);
Upload::Registers upload;
struct {
union {
BitField<0, 1, u32> linear;
};
} exec_upload;
u32 data_upload;
INSERT_UNION_PADDING_WORDS(0x3F);
struct {
u32 address;
GPUVAddr Address() const {
return static_cast<GPUVAddr>((static_cast<GPUVAddr>(address) << 8));
}
} launch_desc_loc;
INSERT_UNION_PADDING_WORDS(0x1);
u32 launch;
INSERT_UNION_PADDING_WORDS(0x4A7);
struct {
u32 address_high;
u32 address_low;
u32 limit;
GPUVAddr Address() const {
return static_cast<GPUVAddr>((static_cast<GPUVAddr>(address_high) << 32) |
address_low);
}
} tsc;
INSERT_UNION_PADDING_WORDS(0x3);
struct {
u32 address_high;
u32 address_low;
u32 limit;
GPUVAddr Address() const {
return static_cast<GPUVAddr>((static_cast<GPUVAddr>(address_high) << 32) |
address_low);
}
} tic;
INSERT_UNION_PADDING_WORDS(0x22);
struct {
u32 address_high;
u32 address_low;
GPUVAddr Address() const {
return static_cast<GPUVAddr>((static_cast<GPUVAddr>(address_high) << 32) |
address_low);
}
} code_loc;
INSERT_UNION_PADDING_WORDS(0x3FE);
u32 tex_cb_index;
INSERT_UNION_PADDING_WORDS(0x374);
};
std::array<u32, NUM_REGS> reg_array;
};
} regs{};
struct LaunchParams {
static constexpr std::size_t NUM_LAUNCH_PARAMETERS = 0x40;
INSERT_PADDING_WORDS(0x8);
u32 program_start;
INSERT_PADDING_WORDS(0x2);
BitField<30, 1, u32> linked_tsc;
BitField<0, 31, u32> grid_dim_x;
union {
BitField<0, 16, u32> grid_dim_y;
BitField<16, 16, u32> grid_dim_z;
};
INSERT_PADDING_WORDS(0x3);
BitField<0, 18, u32> shared_alloc;
BitField<16, 16, u32> block_dim_x;
union {
BitField<0, 16, u32> block_dim_y;
BitField<16, 16, u32> block_dim_z;
};
union {
BitField<0, 8, u32> const_buffer_enable_mask;
BitField<29, 2, u32> cache_layout;
};
INSERT_PADDING_WORDS(0x8);
struct ConstBufferConfig {
u32 address_low;
union {
BitField<0, 8, u32> address_high;
BitField<15, 17, u32> size;
};
GPUVAddr Address() const {
return static_cast<GPUVAddr>((static_cast<GPUVAddr>(address_high.Value()) << 32) |
address_low);
}
};
std::array<ConstBufferConfig, NumConstBuffers> const_buffer_config;
union {
BitField<0, 20, u32> local_pos_alloc;
BitField<27, 5, u32> barrier_alloc;
};
union {
BitField<0, 20, u32> local_neg_alloc;
BitField<24, 5, u32> gpr_alloc;
};
union {
BitField<0, 20, u32> local_crs_alloc;
BitField<24, 5, u32> sass_version;
};
INSERT_PADDING_WORDS(0x10);
} launch_description{};
struct {
u32 write_offset = 0;
u32 copy_size = 0;
std::vector<u8> inner_buffer;
} state{};
static_assert(sizeof(Regs) == Regs::NUM_REGS * sizeof(u32),
"KeplerCompute Regs has wrong size");
static_assert(sizeof(LaunchParams) == LaunchParams::NUM_LAUNCH_PARAMETERS * sizeof(u32),
"KeplerCompute LaunchParams has wrong size");
/// 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);
Texture::FullTextureInfo GetTexture(std::size_t offset) const;
/// Given a texture handle, returns the TSC and TIC entries.
Texture::FullTextureInfo GetTextureInfo(Texture::TextureHandle tex_handle) const;
u32 AccessConstBuffer32(ShaderType stage, u64 const_buffer, u64 offset) const override;
SamplerDescriptor AccessBoundSampler(ShaderType stage, u64 offset) const override;
SamplerDescriptor AccessBindlessSampler(ShaderType stage, u64 const_buffer,
u64 offset) const override;
u32 GetBoundBuffer() const override {
return regs.tex_cb_index;
}
VideoCore::GuestDriverProfile& AccessGuestDriverProfile() override;
const VideoCore::GuestDriverProfile& AccessGuestDriverProfile() const override;
private:
Core::System& system;
VideoCore::RasterizerInterface& rasterizer;
MemoryManager& memory_manager;
Upload::State upload_state;
void ProcessLaunch();
/// Retrieves information about a specific TIC entry from the TIC buffer.
Texture::TICEntry GetTICEntry(u32 tic_index) const;
/// Retrieves information about a specific TSC entry from the TSC buffer.
Texture::TSCEntry GetTSCEntry(u32 tsc_index) const;
};
#define ASSERT_REG_POSITION(field_name, position) \
static_assert(offsetof(KeplerCompute::Regs, field_name) == position * 4, \
"Field " #field_name " has invalid position")
#define ASSERT_LAUNCH_PARAM_POSITION(field_name, position) \
static_assert(offsetof(KeplerCompute::LaunchParams, field_name) == position * 4, \
"Field " #field_name " has invalid position")
ASSERT_REG_POSITION(upload, 0x60);
ASSERT_REG_POSITION(exec_upload, 0x6C);
ASSERT_REG_POSITION(data_upload, 0x6D);
ASSERT_REG_POSITION(launch, 0xAF);
ASSERT_REG_POSITION(tsc, 0x557);
ASSERT_REG_POSITION(tic, 0x55D);
ASSERT_REG_POSITION(code_loc, 0x582);
ASSERT_REG_POSITION(tex_cb_index, 0x982);
ASSERT_LAUNCH_PARAM_POSITION(program_start, 0x8);
ASSERT_LAUNCH_PARAM_POSITION(grid_dim_x, 0xC);
ASSERT_LAUNCH_PARAM_POSITION(shared_alloc, 0x11);
ASSERT_LAUNCH_PARAM_POSITION(block_dim_x, 0x12);
ASSERT_LAUNCH_PARAM_POSITION(const_buffer_enable_mask, 0x14);
ASSERT_LAUNCH_PARAM_POSITION(const_buffer_config, 0x1D);
#undef ASSERT_REG_POSITION
} // namespace Tegra::Engines
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