yuzu/src/core/device_memory.h

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// SPDX-FileCopyrightText: Copyright 2020 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#pragma once
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#include "common/host_memory.h"
#include "common/typed_address.h"
namespace Core {
namespace DramMemoryMap {
enum : u64 {
Base = 0x80000000ULL,
KernelReserveBase = Base + 0x60000,
SlabHeapBase = KernelReserveBase + 0x85000,
};
}; // namespace DramMemoryMap
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class DeviceMemory {
public:
explicit DeviceMemory();
~DeviceMemory();
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DeviceMemory& operator=(const DeviceMemory&) = delete;
DeviceMemory(const DeviceMemory&) = delete;
template <typename T>
Common::PhysicalAddress GetPhysicalAddr(const T* ptr) const {
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return (reinterpret_cast<uintptr_t>(ptr) -
reinterpret_cast<uintptr_t>(buffer.BackingBasePointer())) +
DramMemoryMap::Base;
}
template <typename T>
PAddr GetRawPhysicalAddr(const T* ptr) const {
return static_cast<PAddr>(reinterpret_cast<uintptr_t>(ptr) -
reinterpret_cast<uintptr_t>(buffer.BackingBasePointer()));
}
template <typename T>
T* GetPointer(Common::PhysicalAddress addr) {
return reinterpret_cast<T*>(buffer.BackingBasePointer() +
(GetInteger(addr) - DramMemoryMap::Base));
}
template <typename T>
const T* GetPointer(Common::PhysicalAddress addr) const {
return reinterpret_cast<T*>(buffer.BackingBasePointer() +
(GetInteger(addr) - DramMemoryMap::Base));
}
template <typename T>
T* GetPointerFromRaw(PAddr addr) {
return reinterpret_cast<T*>(buffer.BackingBasePointer() + addr);
}
template <typename T>
const T* GetPointerFromRaw(PAddr addr) const {
return reinterpret_cast<T*>(buffer.BackingBasePointer() + addr);
}
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Common::HostMemory buffer;
};
} // namespace Core