Changeset ecbdc724 in mainline for arch/ia32/include/mm/page.h

Timestamp:

2006-02-10T22:37:27Z (19 years ago)

Author:

Jakub Jermar <jakub@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

d7d6385

Parents:

0882a9a

Message:

Change pt_mapping_remove() to deallocate frames for empty PTL1, PTL2 and PTL3.

File:

• arch/ia32/include/mm/page.h (modified) (2 diffs)

arch/ia32/include/mm/page.h

@@ -45 +45 @@
  * IA-32 has 2-level page tables, so PTL1 and PTL2 are left out.
  */
+#define PTL0_ENTRIES_ARCH       1024
+#define PTL1_ENTRIES_ARCH       0
+#define PTL2_ENTRIES_ARCH       0
+#define PTL3_ENTRIES_ARCH       1024
+
 #define PTL0_INDEX_ARCH(vaddr)  (((vaddr)>>22)&0x3ff)
 #define PTL1_INDEX_ARCH(vaddr)  0
@@ -70 +75 @@
 #define SET_PTL3_FLAGS_ARCH(ptl2, i, x)
 #define SET_FRAME_FLAGS_ARCH(ptl3, i, x)        set_pt_flags((pte_t *)(ptl3), (index_t)(i), (x))
+
+#define PTE_VALID_ARCH(p)                       (*((__u32 *) (p)) != 0)
 
 #ifndef __ASM__