diff options
| author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 15:20:36 -0700 |
| commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
| tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /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.h | 44 |
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 @@ +#ifdef __KERNEL__ +#ifndef _PPC_PGALLOC_H +#define _PPC_PGALLOC_H + +#include <linux/config.h> +#include <linux/threads.h> + +extern void __bad_pte(pmd_t *pmd); + +extern pgd_t *pgd_alloc(struct mm_struct *mm); +extern void pgd_free(pgd_t *pgd); + +/* + * We don't have any real pmd's, and this code never triggers because + * the pgd will always be present.. + */ +#define pmd_alloc_one(mm,address) ({ BUG(); ((pmd_t *)2); }) +#define pmd_free(x) do { } while (0) +#define __pmd_free_tlb(tlb,x) do { } while (0) +#define pgd_populate(mm, pmd, pte) BUG() + +#ifndef CONFIG_BOOKE +#define pmd_populate_kernel(mm, pmd, pte) \ + (pmd_val(*(pmd)) = __pa(pte) | _PMD_PRESENT) +#define pmd_populate(mm, pmd, pte) \ + (pmd_val(*(pmd)) = (page_to_pfn(pte) << PAGE_SHIFT) | _PMD_PRESENT) +#else +#define pmd_populate_kernel(mm, pmd, pte) \ + (pmd_val(*(pmd)) = (unsigned long)pte | _PMD_PRESENT) +#define pmd_populate(mm, pmd, pte) \ + (pmd_val(*(pmd)) = (unsigned long)page_to_virt(pte) | _PMD_PRESENT) +#endif + +extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr); +extern struct page *pte_alloc_one(struct mm_struct *mm, unsigned long addr); +extern void pte_free_kernel(pte_t *pte); +extern void pte_free(struct page *pte); + +#define __pte_free_tlb(tlb, pte) pte_free((pte)) + +#define check_pgt_cache() do { } while (0) + +#endif /* _PPC_PGALLOC_H */ +#endif /* __KERNEL__ */ |