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// Copyright 2021 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/engine_interface.h"
namespace Core {
class System;
}
namespace Tegra {
class MemoryManager;
class DmaPusher;
enum class EngineID {
FERMI_TWOD_A = 0x902D, // 2D Engine
MAXWELL_B = 0xB197, // 3D Engine
KEPLER_COMPUTE_B = 0xB1C0,
KEPLER_INLINE_TO_MEMORY_B = 0xA140,
MAXWELL_DMA_COPY_A = 0xB0B5,
};
namespace Control {
struct ChannelState;
}
} // namespace Tegra
namespace VideoCore {
class RasterizerInterface;
}
namespace Tegra::Engines {
class Puller final {
public:
struct MethodCall {
u32 method{};
u32 argument{};
u32 subchannel{};
u32 method_count{};
explicit MethodCall(u32 method_, u32 argument_, u32 subchannel_ = 0, u32 method_count_ = 0)
: method(method_), argument(argument_), subchannel(subchannel_),
method_count(method_count_) {}
[[nodiscard]] bool IsLastCall() const {
return method_count <= 1;
}
};
enum class FenceOperation : u32 {
Acquire = 0,
Increment = 1,
};
union FenceAction {
u32 raw;
BitField<0, 1, FenceOperation> op;
BitField<8, 24, u32> syncpoint_id;
};
explicit Puller(GPU& gpu_, MemoryManager& memory_manager_, DmaPusher& dma_pusher,
Control::ChannelState& channel_state);
~Puller();
void CallMethod(const MethodCall& method_call);
void CallMultiMethod(u32 method, u32 subchannel, const u32* base_start, u32 amount,
u32 methods_pending);
void BindRasterizer(VideoCore::RasterizerInterface* rasterizer);
void CallPullerMethod(const MethodCall& method_call);
void CallEngineMethod(const MethodCall& method_call);
void CallEngineMultiMethod(u32 method, u32 subchannel, const u32* base_start, u32 amount,
u32 methods_pending);
private:
Tegra::GPU& gpu;
MemoryManager& memory_manager;
DmaPusher& dma_pusher;
Control::ChannelState& channel_state;
VideoCore::RasterizerInterface* rasterizer = nullptr;
static constexpr std::size_t NUM_REGS = 0x800;
struct Regs {
static constexpr size_t NUM_REGS = 0x40;
union {
struct {
INSERT_PADDING_WORDS_NOINIT(0x4);
struct {
u32 address_high;
u32 address_low;
[[nodiscard]] GPUVAddr SemaphoreAddress() const {
return static_cast<GPUVAddr>((static_cast<GPUVAddr>(address_high) << 32) |
address_low);
}
} semaphore_address;
u32 semaphore_sequence;
u32 semaphore_trigger;
INSERT_PADDING_WORDS_NOINIT(0xC);
// The pusher and the puller share the reference counter, the pusher only has read
// access
u32 reference_count;
INSERT_PADDING_WORDS_NOINIT(0x5);
u32 semaphore_acquire;
u32 semaphore_release;
u32 fence_value;
FenceAction fence_action;
INSERT_PADDING_WORDS_NOINIT(0xE2);
// Puller state
u32 acquire_mode;
u32 acquire_source;
u32 acquire_active;
u32 acquire_timeout;
u32 acquire_value;
};
std::array<u32, NUM_REGS> reg_array;
};
} regs{};
void ProcessBindMethod(const MethodCall& method_call);
void ProcessFenceActionMethod();
void ProcessSemaphoreAcquire();
void ProcessSemaphoreRelease();
void ProcessSemaphoreTriggerMethod();
void ProcessWaitForInterruptMethod();
[[nodiscard]] bool ExecuteMethodOnEngine(u32 method);
/// Mapping of command subchannels to their bound engine ids
std::array<EngineID, 8> bound_engines{};
enum class GpuSemaphoreOperation {
AcquireEqual = 0x1,
WriteLong = 0x2,
AcquireGequal = 0x4,
AcquireMask = 0x8,
};
#define ASSERT_REG_POSITION(field_name, position) \
static_assert(offsetof(Regs, field_name) == position * 4, \
"Field " #field_name " has invalid position")
ASSERT_REG_POSITION(semaphore_address, 0x4);
ASSERT_REG_POSITION(semaphore_sequence, 0x6);
ASSERT_REG_POSITION(semaphore_trigger, 0x7);
ASSERT_REG_POSITION(reference_count, 0x14);
ASSERT_REG_POSITION(semaphore_acquire, 0x1A);
ASSERT_REG_POSITION(semaphore_release, 0x1B);
ASSERT_REG_POSITION(fence_value, 0x1C);
ASSERT_REG_POSITION(fence_action, 0x1D);
ASSERT_REG_POSITION(acquire_mode, 0x100);
ASSERT_REG_POSITION(acquire_source, 0x101);
ASSERT_REG_POSITION(acquire_active, 0x102);
ASSERT_REG_POSITION(acquire_timeout, 0x103);
ASSERT_REG_POSITION(acquire_value, 0x104);
#undef ASSERT_REG_POSITION
};
} // namespace Tegra::Engines
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