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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 15:20:36 -0700
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-generic/4level-fixup.h
downloadlinux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.bz2
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'include/asm-generic/4level-fixup.h')
-rw-r--r--include/asm-generic/4level-fixup.h38
1 files changed, 38 insertions, 0 deletions
diff --git a/include/asm-generic/4level-fixup.h b/include/asm-generic/4level-fixup.h
new file mode 100644
index 000000000000..c20ec257ecc0
--- /dev/null
+++ b/include/asm-generic/4level-fixup.h
@@ -0,0 +1,38 @@
+#ifndef _4LEVEL_FIXUP_H
+#define _4LEVEL_FIXUP_H
+
+#define __ARCH_HAS_4LEVEL_HACK
+#define __PAGETABLE_PUD_FOLDED
+
+#define PUD_SIZE PGDIR_SIZE
+#define PUD_MASK PGDIR_MASK
+#define PTRS_PER_PUD 1
+
+#define pud_t pgd_t
+
+#define pmd_alloc(mm, pud, address) \
+({ pmd_t *ret; \
+ if (pgd_none(*pud)) \
+ ret = __pmd_alloc(mm, pud, address); \
+ else \
+ ret = pmd_offset(pud, address); \
+ ret; \
+})
+
+#define pud_alloc(mm, pgd, address) (pgd)
+#define pud_offset(pgd, start) (pgd)
+#define pud_none(pud) 0
+#define pud_bad(pud) 0
+#define pud_present(pud) 1
+#define pud_ERROR(pud) do { } while (0)
+#define pud_clear(pud) pgd_clear(pud)
+
+#undef pud_free_tlb
+#define pud_free_tlb(tlb, x) do { } while (0)
+#define pud_free(x) do { } while (0)
+#define __pud_free_tlb(tlb, x) do { } while (0)
+
+#undef pud_addr_end
+#define pud_addr_end(addr, end) (end)
+
+#endif