#pragma once
#include <luna/Result.h>

#ifdef ARCH_X86_64
#include "arch/x86_64/MMU.h"
#else
#error "Unknown architecture."
#endif

namespace MMU
{
    enum Flags
    {
        None = 0,
        ReadWrite = 1,
        User = 2,
        NoExecute = 4,
        WriteThrough = 8,
        CacheDisable = 16,
    };

    Result<void> map(u64 virt, u64 phys, int flags);
    Result<u64> unmap(u64 virt);
    Result<u64> get_physical(u64 virt);
    Result<int> get_flags(u64 virt);
    Result<void> remap(u64 virt, int flags);

    void switch_page_directory(PageDirectory* dir);
    PageDirectory* get_page_directory();

    void flush_all();

    Result<PageDirectory*> create_page_directory_for_userspace();
    void setup_initial_page_directory();
}