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// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#pragma once
#include <deque>
#include <memory>
#include "common/common_types.h"
#include "common/virtual_buffer.h"
namespace Core {
class DeviceMemory;
namespace Memory {
class Memory;
}
template <typename DTraits>
struct DeviceMemoryManagerAllocator;
template <typename Traits>
class DeviceMemoryManager {
using DeviceInterface = typename Traits::DeviceInterface;
public:
DeviceMemoryManager(const DeviceMemory& device_memory);
~DeviceMemoryManager();
void BindInterface(DeviceInterface* interface);
DAddr Allocate(size_t size);
void AllocateFixed(DAddr start, size_t size);
DAddr AllocatePinned(size_t size);
void Free(DAddr start, size_t size);
void Map(DAddr address, VAddr virtual_address, size_t size, size_t p_id);
void Unmap(DAddr address, size_t size);
// Write / Read
template <typename T>
T* GetPointer(DAddr address);
template <typename T>
const T* GetPointer(DAddr address) const;
template <typename T>
void Write(DAddr address, T value);
template <typename T>
T Read(DAddr address) const;
void ReadBlock(DAddr address, void* dest_pointer, size_t size);
void WriteBlock(DAddr address, void* src_pointer, size_t size);
size_t RegisterProcess(Memory::Memory* memory);
void UnregisterProcess(size_t id);
private:
static constexpr bool supports_pinning = Traits::supports_pinning;
static constexpr size_t device_virtual_bits = Traits::device_virtual_bits;
static constexpr size_t device_as_size = 1ULL << device_virtual_bits;
static constexpr size_t physical_max_bits = 33;
static constexpr size_t page_bits = 12;
static constexpr u32 physical_address_base = 1U << page_bits;
template <typename T>
T* GetPointerFromRaw(PAddr addr) {
return reinterpret_cast<T*>(physical_base + addr);
}
template <typename T>
const T* GetPointerFromRaw(PAddr addr) const {
return reinterpret_cast<T*>(physical_base + addr);
}
template <typename T>
PAddr GetRawPhysicalAddr(const T* ptr) const {
return static_cast<PAddr>(reinterpret_cast<uintptr_t>(ptr) - physical_base);
}
void WalkBlock(const DAddr addr, const std::size_t size, auto on_unmapped, auto on_memory,
auto increment);
std::unique_ptr<DeviceMemoryManagerAllocator<Traits>> impl;
const uintptr_t physical_base;
DeviceInterface* interface;
Common::VirtualBuffer<u32> compressed_physical_ptr;
Common::VirtualBuffer<u32> compressed_device_addr;
std::deque<size_t> id_pool;
std::deque<Memory::Memory*> registered_processes;
};
} // namespace Core
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