From 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Sat, 16 Apr 2005 15:20:36 -0700 Subject: 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! --- include/asm-alpha/pgalloc.h | 78 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 78 insertions(+) create mode 100644 include/asm-alpha/pgalloc.h (limited to 'include/asm-alpha/pgalloc.h') diff --git a/include/asm-alpha/pgalloc.h b/include/asm-alpha/pgalloc.h new file mode 100644 index 000000000000..308475642913 --- /dev/null +++ b/include/asm-alpha/pgalloc.h @@ -0,0 +1,78 @@ +#ifndef _ALPHA_PGALLOC_H +#define _ALPHA_PGALLOC_H + +#include +#include +#include + +/* + * 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 */ -- cgit v1.2.3