path: root/src/core/hle/kernel/k_device_address_space.h

// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later

#pragma once

#include <string>

#include "core/hle/kernel/k_process_page_table.h"
#include "core/hle/kernel/k_typed_address.h"
#include "core/hle/kernel/slab_helpers.h"
#include "core/hle/result.h"

namespace Kernel {

class KDeviceAddressSpace final
    : public KAutoObjectWithSlabHeapAndContainer<KDeviceAddressSpace, KAutoObjectWithList> {
    KERNEL_AUTOOBJECT_TRAITS(KDeviceAddressSpace, KAutoObject);

public:
    explicit KDeviceAddressSpace(KernelCore& kernel);
    ~KDeviceAddressSpace();

    Result Initialize(u64 address, u64 size);
    void Finalize() override;

    bool IsInitialized() const override {
        return m_is_initialized;
    }
    static void PostDestroy(uintptr_t arg) {}

    Result Attach(Svc::DeviceName device_name);
    Result Detach(Svc::DeviceName device_name);

    Result MapByForce(KProcessPageTable* page_table, KProcessAddress process_address, size_t size,
                      u64 device_address, u32 option) {
        R_RETURN(this->Map(page_table, process_address, size, device_address, option, false));
    }

    Result MapAligned(KProcessPageTable* page_table, KProcessAddress process_address, size_t size,
                      u64 device_address, u32 option) {
        R_RETURN(this->Map(page_table, process_address, size, device_address, option, true));
    }

    Result Unmap(KProcessPageTable* page_table, KProcessAddress process_address, size_t size,
                 u64 device_address);

    static void Initialize();

private:
    Result Map(KProcessPageTable* page_table, KProcessAddress process_address, size_t size,
               u64 device_address, u32 option, bool is_aligned);

private:
    KLightLock m_lock;
    // KDevicePageTable m_table;
    u64 m_space_address{};
    u64 m_space_size{};
    bool m_is_initialized{};
};

} // namespace Kernel