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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-16 18:20:36 -0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-ppc/pgalloc.h
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-ppc/pgalloc.h')
-rw-r--r--include/asm-ppc/pgalloc.h44
1 files changed, 44 insertions, 0 deletions
diff --git a/include/asm-ppc/pgalloc.h b/include/asm-ppc/pgalloc.h
new file mode 100644
index 000000000000..931b6de7ef53
--- /dev/null
+++ b/include/asm-ppc/pgalloc.h
@@ -0,0 +1,44 @@
1#ifdef __KERNEL__
2#ifndef _PPC_PGALLOC_H
3#define _PPC_PGALLOC_H
4
5#include <linux/config.h>
6#include <linux/threads.h>
7
8extern void __bad_pte(pmd_t *pmd);
9
10extern pgd_t *pgd_alloc(struct mm_struct *mm);
11extern void pgd_free(pgd_t *pgd);
12
13/*
14 * We don't have any real pmd's, and this code never triggers because
15 * the pgd will always be present..
16 */
17#define pmd_alloc_one(mm,address) ({ BUG(); ((pmd_t *)2); })
18#define pmd_free(x) do { } while (0)
19#define __pmd_free_tlb(tlb,x) do { } while (0)
20#define pgd_populate(mm, pmd, pte) BUG()
21
22#ifndef CONFIG_BOOKE
23#define pmd_populate_kernel(mm, pmd, pte) \
24 (pmd_val(*(pmd)) = __pa(pte) | _PMD_PRESENT)
25#define pmd_populate(mm, pmd, pte) \
26 (pmd_val(*(pmd)) = (page_to_pfn(pte) << PAGE_SHIFT) | _PMD_PRESENT)
27#else
28#define pmd_populate_kernel(mm, pmd, pte) \
29 (pmd_val(*(pmd)) = (unsigned long)pte | _PMD_PRESENT)
30#define pmd_populate(mm, pmd, pte) \
31 (pmd_val(*(pmd)) = (unsigned long)page_to_virt(pte) | _PMD_PRESENT)
32#endif
33
34extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr);
35extern struct page *pte_alloc_one(struct mm_struct *mm, unsigned long addr);
36extern void pte_free_kernel(pte_t *pte);
37extern void pte_free(struct page *pte);
38
39#define __pte_free_tlb(tlb, pte) pte_free((pte))
40
41#define check_pgt_cache() do { } while (0)
42
43#endif /* _PPC_PGALLOC_H */
44#endif /* __KERNEL__ */