30 lines
702 B
C
30 lines
702 B
C
#pragma once
|
|
#include "stdarg.h"
|
|
#include "types.h"
|
|
|
|
/** Physical Page related function
|
|
*/
|
|
|
|
#define PAGE_SHIFT 12U
|
|
#define PAGE_SIZE (1U << PAGE_SHIFT)
|
|
#define PAGE_MASK (PAGE_SIZE - 1)
|
|
|
|
|
|
// Defined in linker.ld script
|
|
extern char __ld_kernel_begin;
|
|
extern char __ld_kernel_end;
|
|
|
|
struct phyMemDesc {
|
|
paddr_t phy_addr;
|
|
unsigned long ref;
|
|
struct phyMemDesc *next, *prev;
|
|
};
|
|
|
|
int memSetup(paddr_t upperMem, paddr_t * firstUsed, paddr_t *lastUsed);
|
|
int memAddBank(paddr_t bottomMem, paddr_t topMem, int isFree);
|
|
paddr_t allocPhyPage(uint nbPage);
|
|
int unrefPhyPage(paddr_t addr);
|
|
int refPhyPage(paddr_t addr);
|
|
unsigned long getNbAllocatedPage(void);
|
|
void memGetStat(uint *free, uint *used);
|