diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/powerpc/include/asm/pgalloc-64.h')
-rw-r--r-- | ANDROID_3.4.5/arch/powerpc/include/asm/pgalloc-64.h | 143 |
1 files changed, 0 insertions, 143 deletions
diff --git a/ANDROID_3.4.5/arch/powerpc/include/asm/pgalloc-64.h b/ANDROID_3.4.5/arch/powerpc/include/asm/pgalloc-64.h deleted file mode 100644 index 292725ce..00000000 --- a/ANDROID_3.4.5/arch/powerpc/include/asm/pgalloc-64.h +++ /dev/null @@ -1,143 +0,0 @@ -#ifndef _ASM_POWERPC_PGALLOC_64_H -#define _ASM_POWERPC_PGALLOC_64_H -/* - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - */ - -#include <linux/slab.h> -#include <linux/cpumask.h> -#include <linux/percpu.h> - -struct vmemmap_backing { - struct vmemmap_backing *list; - unsigned long phys; - unsigned long virt_addr; -}; - -/* - * Functions that deal with pagetables that could be at any level of - * the table need to be passed an "index_size" so they know how to - * handle allocation. For PTE pages (which are linked to a struct - * page for now, and drawn from the main get_free_pages() pool), the - * allocation size will be (2^index_size * sizeof(pointer)) and - * allocations are drawn from the kmem_cache in PGT_CACHE(index_size). - * - * The maximum index size needs to be big enough to allow any - * pagetable sizes we need, but small enough to fit in the low bits of - * any page table pointer. In other words all pagetables, even tiny - * ones, must be aligned to allow at least enough low 0 bits to - * contain this value. This value is also used as a mask, so it must - * be one less than a power of two. - */ -#define MAX_PGTABLE_INDEX_SIZE 0xf - -extern struct kmem_cache *pgtable_cache[]; -#define PGT_CACHE(shift) (pgtable_cache[(shift)-1]) - -static inline pgd_t *pgd_alloc(struct mm_struct *mm) -{ - return kmem_cache_alloc(PGT_CACHE(PGD_INDEX_SIZE), GFP_KERNEL); -} - -static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd) -{ - kmem_cache_free(PGT_CACHE(PGD_INDEX_SIZE), pgd); -} - -#ifndef CONFIG_PPC_64K_PAGES - -#define pgd_populate(MM, PGD, PUD) pgd_set(PGD, PUD) - -static inline pud_t *pud_alloc_one(struct mm_struct *mm, unsigned long addr) -{ - return kmem_cache_alloc(PGT_CACHE(PUD_INDEX_SIZE), - GFP_KERNEL|__GFP_REPEAT); -} - -static inline void pud_free(struct mm_struct *mm, pud_t *pud) -{ - kmem_cache_free(PGT_CACHE(PUD_INDEX_SIZE), pud); -} - -static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd) -{ - pud_set(pud, (unsigned long)pmd); -} - -#define pmd_populate(mm, pmd, pte_page) \ - pmd_populate_kernel(mm, pmd, page_address(pte_page)) -#define pmd_populate_kernel(mm, pmd, pte) pmd_set(pmd, (unsigned long)(pte)) -#define pmd_pgtable(pmd) pmd_page(pmd) - - -#else /* CONFIG_PPC_64K_PAGES */ - -#define pud_populate(mm, pud, pmd) pud_set(pud, (unsigned long)pmd) - -static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, - pte_t *pte) -{ - pmd_set(pmd, (unsigned long)pte); -} - -#define pmd_populate(mm, pmd, pte_page) \ - pmd_populate_kernel(mm, pmd, page_address(pte_page)) -#define pmd_pgtable(pmd) pmd_page(pmd) - -#endif /* CONFIG_PPC_64K_PAGES */ - -static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long addr) -{ - return kmem_cache_alloc(PGT_CACHE(PMD_INDEX_SIZE), - GFP_KERNEL|__GFP_REPEAT); -} - -static inline void pmd_free(struct mm_struct *mm, pmd_t *pmd) -{ - kmem_cache_free(PGT_CACHE(PMD_INDEX_SIZE), pmd); -} - -static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, - unsigned long address) -{ - return (pte_t *)__get_free_page(GFP_KERNEL | __GFP_REPEAT | __GFP_ZERO); -} - -static inline pgtable_t pte_alloc_one(struct mm_struct *mm, - unsigned long address) -{ - struct page *page; - pte_t *pte; - - pte = pte_alloc_one_kernel(mm, address); - if (!pte) - return NULL; - page = virt_to_page(pte); - pgtable_page_ctor(page); - return page; -} - -static inline void pgtable_free(void *table, unsigned index_size) -{ - if (!index_size) - free_page((unsigned long)table); - else { - BUG_ON(index_size > MAX_PGTABLE_INDEX_SIZE); - kmem_cache_free(PGT_CACHE(index_size), table); - } -} - -#define __pmd_free_tlb(tlb, pmd, addr) \ - pgtable_free_tlb(tlb, pmd, PMD_INDEX_SIZE) -#ifndef CONFIG_PPC_64K_PAGES -#define __pud_free_tlb(tlb, pud, addr) \ - pgtable_free_tlb(tlb, pud, PUD_INDEX_SIZE) - -#endif /* CONFIG_PPC_64K_PAGES */ - -#define check_pgt_cache() do { } while (0) - -#endif /* _ASM_POWERPC_PGALLOC_64_H */ |