matos/core/mem.h
2018-11-08 22:08:27 +01:00

22 lines
397 B
C

#pragma once
#include "stdarg.h"
#define PAGE_SHIFT 12
#define PAGE_SIZE (1 << PAGE_SHIFT)
// Defined in linker.ld script
extern uint32_t __ld_kernel_begin;
extern uint32_t __ld_kernel_end;
struct mem_desc{
unsigned long phy_addr;
unsigned long ref;
struct mem_desc *next, *prev;
};
int memSetup(unsigned long upper_mem);
unsigned long allocPage(void);
int unrefPage(unsigned long addr);