Memory.hpp

Go to the documentation of this file.

/**
 * @file Memory.hpp
 * @author Keeton Feavel ([email protected])
 * @brief Architecture memory management & paging API
 * @version 0.1
 * @date 2021-09-18
 *
 * @copyright Copyright the Xyris Contributors (c) 2021
 *
 */
#pragma once
 
#include <stdint.h>
#include <stddef.h>
#if defined(__i686__)
#    include <Arch/i686/Memory.i686.hpp>
#endif
 
#define B_TO_KB(b) ((b) / 1024)
#define KB_TO_MB(kb) ((kb) / 1024)
#define MB_TO_GB(mb) ((mb) / 1024)
 
#define B_TO_MB(b) KB_TO_MB(B_TO_KB(b))
#define B_TO_GB(b) MB_TO_GB(B_TO_MB(b))
 
#define ADDRESS_SPACE_SIZE  0x100000000
// TODO: Add this to memory class (#326)
#define ADDRESS_TO_PAGE_IDX(addr) ((addr) / ARCH_PAGE_SIZE)
#define MEM_BITMAP_SIZE ((ADDRESS_SPACE_SIZE / ARCH_PAGE_SIZE) / (sizeof(size_t) * CHAR_BIT))
 
namespace Arch::Memory {
 
/**
 * @brief Enable hardware paging
 *
 */
void pagingEnable();
 
/**
 * @brief Disable hardware paging
 *
 */
void pagingDisable();
 
} // !namespace Arch::Memory