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author | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 22:20:36 (GMT) |
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committer | Linus Torvalds <torvalds@ppc970.osdl.org> | 2005-04-16 22:20:36 (GMT) |
commit | 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch) | |
tree | 0bba044c4ce775e45a88a51686b5d9f90697ea9d /include/asm-alpha/pgalloc.h | |
download | linux-fsl-qoriq-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.xz |
Linux-2.6.12-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-alpha/pgalloc.h')
-rw-r--r-- | include/asm-alpha/pgalloc.h | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/include/asm-alpha/pgalloc.h b/include/asm-alpha/pgalloc.h new file mode 100644 index 0000000..3084756 --- /dev/null +++ b/include/asm-alpha/pgalloc.h @@ -0,0 +1,78 @@ +#ifndef _ALPHA_PGALLOC_H +#define _ALPHA_PGALLOC_H + +#include <linux/config.h> +#include <linux/mm.h> +#include <linux/mmzone.h> + +/* + * Allocate and free page tables. The xxx_kernel() versions are + * used to allocate a kernel page table - this turns on ASN bits + * if any. + */ + +static inline void +pmd_populate(struct mm_struct *mm, pmd_t *pmd, struct page *pte) +{ + pmd_set(pmd, (pte_t *)(page_to_pa(pte) + PAGE_OFFSET)); +} + +static inline void +pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, pte_t *pte) +{ + pmd_set(pmd, pte); +} + +static inline void +pgd_populate(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmd) +{ + pgd_set(pgd, pmd); +} + +extern pgd_t *pgd_alloc(struct mm_struct *mm); + +static inline void +pgd_free(pgd_t *pgd) +{ + free_page((unsigned long)pgd); +} + +static inline pmd_t * +pmd_alloc_one(struct mm_struct *mm, unsigned long address) +{ + pmd_t *ret = (pmd_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT|__GFP_ZERO); + return ret; +} + +static inline void +pmd_free(pmd_t *pmd) +{ + free_page((unsigned long)pmd); +} + +extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr); + +static inline void +pte_free_kernel(pte_t *pte) +{ + free_page((unsigned long)pte); +} + +static inline struct page * +pte_alloc_one(struct mm_struct *mm, unsigned long addr) +{ + pte_t *pte = pte_alloc_one_kernel(mm, addr); + if (pte) + return virt_to_page(pte); + return NULL; +} + +static inline void +pte_free(struct page *page) +{ + __free_page(page); +} + +#define check_pgt_cache() do { } while (0) + +#endif /* _ALPHA_PGALLOC_H */ |