41 lines
602 B
C
41 lines
602 B
C
#ifndef __KERNEL_MEMORY_H__
|
|
# define __KERNEL_MEMORY_H__
|
|
|
|
#include <stddef.h>
|
|
#include <stdint.h>
|
|
|
|
#define PM_BLOCK_SIZE (64)
|
|
|
|
struct pm_block_cache_s
|
|
{
|
|
// Block status
|
|
enum {
|
|
UNUSED,
|
|
USED
|
|
} status;
|
|
|
|
// Space informations.
|
|
uint32_t start;
|
|
uint32_t end;
|
|
|
|
// Linked list
|
|
struct pm_block_cache_s *next;
|
|
};
|
|
|
|
struct memory_info_s
|
|
{
|
|
// Cache informations.
|
|
struct pm_block_cache_s *cache;
|
|
struct pm_block_cache_s *head;
|
|
|
|
// RAM informations.
|
|
uint32_t start;
|
|
uint32_t blocks;
|
|
};
|
|
|
|
// Function
|
|
extern void *pm_alloc(size_t size);
|
|
extern void pm_free(void *ptr);
|
|
|
|
#endif /*__KERNEL_MEMORY_H__*/
|