Subversion Repositories HelenOS-historic

Rev

Rev 684 | Rev 746 | Go to most recent revision | Show entire file | Regard whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 684 Rev 699
Line 26... Line 26...
26 
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 26 
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 
 */
 27 
 */
28 
 
 28 
 
29 
/*
 29 
/*
30 
 * This is the generic page hash table interface.
 30 
 * This is the generic page hash table interface.
- 
 
 31 
 * Architectures that use single page hash table for
- 
 
 32 
 * storing page translations must implement it.
31 
 */
 33 
 */
32 
 
 34 
 
33 
#ifndef __PAGE_HT_H__
 35 
#ifndef __PAGE_HT_H__
34 
#define __PAGE_HT_H__
 36 
#define __PAGE_HT_H__
35 
 
 37 
 
36 
#include <mm/page.h>
 38 
#include <mm/page.h>
37 
 
 39 
 
- 
 
 40 
/** Hash function.
- 
 
 41 
 *
- 
 
 42 
 * @param page Virtual address. Only vpn bits will be used.
- 
 
 43 
 * @param asid Address space identifier.
- 
 
 44 
 *
- 
 
 45 
 * @return Pointer to hash table typed pte_t *.
- 
 
 46 
 */
- 
 
 47 
#define HT_HASH(page, asid)     HT_HASH_ARCH(page, asid)
- 
 
 48 
 
- 
 
 49 
/** Compare PTE with page and asid.
- 
 
 50 
 *
- 
 
 51 
 * @param page Virtual address. Only vpn bits will be used.
- 
 
 52 
 * @param asid Address space identifier.
- 
 
 53 
 * @param t PTE.
- 
 
 54 
 *
- 
 
 55 
 * @return 1 on match, 0 otherwise.
- 
 
 56 
 */
- 
 
 57 
#define HT_COMPARE(page, asid, t)   HT_COMPARE_ARCH(page, asid, t)
- 
 
 58 
 
- 
 
 59 
/** Identify empty hash table slots.
- 
 
 60 
 *
- 
 
 61 
 * @param t Pointer ro hash table typed pte_t *.
- 
 
 62 
 *
- 
 
 63 
 * @return 1 if the slot is empty, 0 otherwise.
- 
 
 64 
 */
- 
 
 65 
#define HT_SLOT_EMPTY(t)        HT_SLOT_EMPTY_ARCH(t)
- 
 
 66 
 
- 
 
 67 
/** Return next record in collision chain.
- 
 
 68 
 *
- 
 
 69 
 * @param t PTE.
- 
 
 70 
 *
- 
 
 71 
 * @return Successor of PTE or NULL.
- 
 
 72 
 */
- 
 
 73 
#define HT_GET_NEXT(t)          HT_GET_NEXT_ARCH(t)
- 
 
 74 
 
- 
 
 75 
/** Set successor in collision chain.
- 
 
 76 
 *
- 
 
 77 
 * @param t PTE.
- 
 
 78 
 * @param s Successor or NULL.
- 
 
 79 
 */
- 
 
 80 
#define HT_SET_NEXT(t, s)       HT_SET_NEXT_ARCH(t, s)
- 
 
 81 
 
- 
 
 82 
/** Set page hash table record.
- 
 
 83 
 *
- 
 
 84 
 * @param t PTE.
- 
 
 85 
 * @param page Virtual address. Only vpn bits will be used.
- 
 
 86 
 * @param asid Address space identifier.
- 
 
 87 
 * @param frame Physical address. Only pfn bits will be used.
- 
 
 88 
 * @param flags Flags. See mm/page.h.
- 
 
 89 
 */
- 
 
 90 
#define HT_SET_RECORD(t, page, asid, frame, flags)  HT_SET_RECORD_ARCH(t, page, asid, frame, flags)
- 
 
 91 
 
38 
extern page_operations_t page_ht_operations;
 92 
extern page_operations_t page_ht_operations;
39 
 
 93 
 
40 
#endif
 94 
#endif