diff options
Diffstat (limited to 'arch/m68k/include/asm/sun3_pgalloc.h')
| -rw-r--r-- | arch/m68k/include/asm/sun3_pgalloc.h | 73 |
1 files changed, 11 insertions, 62 deletions
diff --git a/arch/m68k/include/asm/sun3_pgalloc.h b/arch/m68k/include/asm/sun3_pgalloc.h index 48d80d5a666f..1e21c758b774 100644 --- a/arch/m68k/include/asm/sun3_pgalloc.h +++ b/arch/m68k/include/asm/sun3_pgalloc.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* sun3_pgalloc.h -- * reorganization around 2.3.39, routines moved from sun3_pgtable.h * @@ -12,57 +13,12 @@ #include <asm/tlb.h> -/* FIXME - when we get this compiling */ -/* erm, now that it's compiling, what do we do with it? */ -#define _KERNPG_TABLE 0 +#include <asm-generic/pgalloc.h> extern const char bad_pmd_string[]; -#define pmd_alloc_one(mm,address) ({ BUG(); ((pmd_t *)2); }) - - -static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte) -{ - free_page((unsigned long) pte); -} - -static inline void pte_free(struct mm_struct *mm, pgtable_t page) -{ - pgtable_page_dtor(page); - __free_page(page); -} - -#define __pte_free_tlb(tlb,pte,addr) \ -do { \ - pgtable_page_dtor(pte); \ - tlb_remove_page((tlb), pte); \ -} while (0) - -static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, - unsigned long address) -{ - unsigned long page = __get_free_page(GFP_KERNEL|__GFP_REPEAT); - - if (!page) - return NULL; - - memset((void *)page, 0, PAGE_SIZE); - return (pte_t *) (page); -} - -static inline pgtable_t pte_alloc_one(struct mm_struct *mm, - unsigned long address) -{ - struct page *page = alloc_pages(GFP_KERNEL|__GFP_REPEAT, 0); - - if (page == NULL) - return NULL; - - clear_highpage(page); - pgtable_page_ctor(page); - return page; - -} +#define __pte_free_tlb(tlb, pte, addr) \ + tlb_remove_ptdesc((tlb), page_ptdesc(pte)) static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, pte_t *pte) { @@ -73,30 +29,23 @@ static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd, pgtable_t page { pmd_val(*pmd) = __pa((unsigned long)page_address(page)); } -#define pmd_pgtable(pmd) pmd_page(pmd) /* * allocating and freeing a pmd is trivial: the 1-entry pmd is * inside the pgd, so has no extra memory associated with it. */ #define pmd_free(mm, x) do { } while (0) -#define __pmd_free_tlb(tlb, x, addr) do { } while (0) - -static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd) -{ - free_page((unsigned long) pgd); -} static inline pgd_t * pgd_alloc(struct mm_struct *mm) { - pgd_t *new_pgd; + pgd_t *new_pgd; - new_pgd = (pgd_t *)get_zeroed_page(GFP_KERNEL); - memcpy(new_pgd, swapper_pg_dir, PAGE_SIZE); - memset(new_pgd, 0, (PAGE_OFFSET >> PGDIR_SHIFT)); - return new_pgd; + new_pgd = __pgd_alloc(mm, 0); + if (likely(new_pgd != NULL)) { + memcpy(new_pgd, swapper_pg_dir, PAGE_SIZE); + memset(new_pgd, 0, (PAGE_OFFSET >> PGDIR_SHIFT)); + } + return new_pgd; } -#define pgd_populate(mm, pmd, pte) BUG() - #endif /* SUN3_PGALLOC_H */ |