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Compare Revisions

• This comparison shows the changes necessary to convert path

  → /trunk/kernel/generic/include/mm/page.h @ 2088

  → /trunk/kernel/generic/include/mm/page.h @ 2089

  ↔ Reverse comparison

• Compare Path:	Rev

  With Path:	Rev

Ignore whitespace Rev 2088 → Rev 2089

/trunk/kernel/generic/include/mm/page.h
35,59 → 35,22
#ifndef KERN_PAGE_H_
#define KERN_PAGE_H_
#include <arch/mm/asid.h>
#include <arch/types.h>
#include <typedefs.h>
#include <mm/as.h>
#include <memstr.h>
#define PAGE_CACHEABLE_SHIFT 0
#define PAGE_NOT_CACHEABLE_SHIFT PAGE_CACHEABLE_SHIFT
#define PAGE_PRESENT_SHIFT 1
#define PAGE_NOT_PRESENT_SHIFT PAGE_PRESENT_SHIFT
#define PAGE_USER_SHIFT 2
#define PAGE_KERNEL_SHIFT PAGE_USER_SHIFT
#define PAGE_READ_SHIFT 3
#define PAGE_WRITE_SHIFT 4
#define PAGE_EXEC_SHIFT 5
#define PAGE_GLOBAL_SHIFT 6
#define PAGE_NOT_CACHEABLE (0<<PAGE_CACHEABLE_SHIFT)
#define PAGE_CACHEABLE (1<<PAGE_CACHEABLE_SHIFT)
#define PAGE_PRESENT (0<<PAGE_PRESENT_SHIFT)
#define PAGE_NOT_PRESENT (1<<PAGE_PRESENT_SHIFT)
#define PAGE_USER (1<<PAGE_USER_SHIFT)
#define PAGE_KERNEL (0<<PAGE_USER_SHIFT)
#define PAGE_READ (1<<PAGE_READ_SHIFT)
#define PAGE_WRITE (1<<PAGE_WRITE_SHIFT)
#define PAGE_EXEC (1<<PAGE_EXEC_SHIFT)
#define PAGE_GLOBAL (1<<PAGE_GLOBAL_SHIFT)
/**
* Macro for computing page color.
*/
#define PAGE_COLOR(va) (((va) >> PAGE_WIDTH) & ((1 << PAGE_COLOR_BITS) - 1))
/** Page fault access type. */
enum pf_access {
PF_ACCESS_READ,
PF_ACCESS_WRITE,
PF_ACCESS_EXEC
};
typedef enum pf_access pf_access_t;
/** Operations to manipulate page mappings. */
struct page_mapping_operations {
void (* mapping_insert)(as_t *as, uintptr_t page, uintptr_t frame, int
flags);
typedef struct {
void (* mapping_insert)(as_t *as, uintptr_t page, uintptr_t frame,
int flags);
void (* mapping_remove)(as_t *as, uintptr_t page);
pte_t *(* mapping_find)(as_t *as, uintptr_t page);
};
typedef struct page_mapping_operations page_mapping_operations_t;
} page_mapping_operations_t;
extern page_mapping_operations_t *page_mapping_operations;
94,8 → 57,8
extern void page_init(void);
extern void page_table_lock(as_t *as, bool lock);
extern void page_table_unlock(as_t *as, bool unlock);
extern void page_mapping_insert(as_t *as, uintptr_t page, uintptr_t frame, int
flags);
extern void page_mapping_insert(as_t *as, uintptr_t page, uintptr_t frame,
int flags);
extern void page_mapping_remove(as_t *as, uintptr_t page);
extern pte_t *page_mapping_find(as_t *as, uintptr_t page);
extern pte_t *page_table_create(int flags);