diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/microblaze/include/asm/pgalloc.h')
| -rw-r--r-- | ANDROID_3.4.5/arch/microblaze/include/asm/pgalloc.h | 189 |
1 files changed, 0 insertions, 189 deletions
diff --git a/ANDROID_3.4.5/arch/microblaze/include/asm/pgalloc.h b/ANDROID_3.4.5/arch/microblaze/include/asm/pgalloc.h deleted file mode 100644 index ebd35792..00000000 --- a/ANDROID_3.4.5/arch/microblaze/include/asm/pgalloc.h +++ /dev/null @@ -1,189 +0,0 @@ -/* - * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu> - * Copyright (C) 2008-2009 PetaLogix - * Copyright (C) 2006 Atmark Techno, Inc. - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - */ - -#ifndef _ASM_MICROBLAZE_PGALLOC_H -#define _ASM_MICROBLAZE_PGALLOC_H - -#ifdef CONFIG_MMU - -#include <linux/kernel.h> /* For min/max macros */ -#include <linux/highmem.h> -#include <asm/setup.h> -#include <asm/io.h> -#include <asm/page.h> -#include <asm/cache.h> -#include <asm/pgtable.h> - -#define PGDIR_ORDER 0 - -/* - * This is handled very differently on MicroBlaze since out page tables - * are all 0's and I want to be able to use these zero'd pages elsewhere - * as well - it gives us quite a speedup. - * -- Cort - */ -extern struct pgtable_cache_struct { - unsigned long *pgd_cache; - unsigned long *pte_cache; - unsigned long pgtable_cache_sz; -} quicklists; - -#define pgd_quicklist (quicklists.pgd_cache) -#define pmd_quicklist ((unsigned long *)0) -#define pte_quicklist (quicklists.pte_cache) -#define pgtable_cache_size (quicklists.pgtable_cache_sz) - -extern unsigned long *zero_cache; /* head linked list of pre-zero'd pages */ -extern atomic_t zero_sz; /* # currently pre-zero'd pages */ -extern atomic_t zeropage_hits; /* # zero'd pages request that we've done */ -extern atomic_t zeropage_calls; /* # zero'd pages request that've been made */ -extern atomic_t zerototal; /* # pages zero'd over time */ - -#define zero_quicklist (zero_cache) -#define zero_cache_sz (zero_sz) -#define zero_cache_calls (zeropage_calls) -#define zero_cache_hits (zeropage_hits) -#define zero_cache_total (zerototal) - -/* - * return a pre-zero'd page from the list, - * return NULL if none available -- Cort - */ -extern unsigned long get_zero_page_fast(void); - -extern void __bad_pte(pmd_t *pmd); - -extern inline pgd_t *get_pgd_slow(void) -{ - pgd_t *ret; - - ret = (pgd_t *)__get_free_pages(GFP_KERNEL, PGDIR_ORDER); - if (ret != NULL) - clear_page(ret); - return ret; -} - -extern inline pgd_t *get_pgd_fast(void) -{ - unsigned long *ret; - - ret = pgd_quicklist; - if (ret != NULL) { - pgd_quicklist = (unsigned long *)(*ret); - ret[0] = 0; - pgtable_cache_size--; - } else - ret = (unsigned long *)get_pgd_slow(); - return (pgd_t *)ret; -} - -extern inline void free_pgd_fast(pgd_t *pgd) -{ - *(unsigned long **)pgd = pgd_quicklist; - pgd_quicklist = (unsigned long *) pgd; - pgtable_cache_size++; -} - -extern inline void free_pgd_slow(pgd_t *pgd) -{ - free_page((unsigned long)pgd); -} - -#define pgd_free(mm, pgd) free_pgd_fast(pgd) -#define pgd_alloc(mm) get_pgd_fast() - -#define pmd_pgtable(pmd) pmd_page(pmd) - -/* - * We don't have any real pmd's, and this code never triggers because - * the pgd will always be present.. - */ -#define pmd_alloc_one_fast(mm, address) ({ BUG(); ((pmd_t *)1); }) -#define pmd_alloc_one(mm, address) ({ BUG(); ((pmd_t *)2); }) - -extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long addr); - -static inline struct page *pte_alloc_one(struct mm_struct *mm, - unsigned long address) -{ - struct page *ptepage; - -#ifdef CONFIG_HIGHPTE - int flags = GFP_KERNEL | __GFP_HIGHMEM | __GFP_REPEAT; -#else - int flags = GFP_KERNEL | __GFP_REPEAT; -#endif - - ptepage = alloc_pages(flags, 0); - if (ptepage) - clear_highpage(ptepage); - return ptepage; -} - -static inline pte_t *pte_alloc_one_fast(struct mm_struct *mm, - unsigned long address) -{ - unsigned long *ret; - - ret = pte_quicklist; - if (ret != NULL) { - pte_quicklist = (unsigned long *)(*ret); - ret[0] = 0; - pgtable_cache_size--; - } - return (pte_t *)ret; -} - -extern inline void pte_free_fast(pte_t *pte) -{ - *(unsigned long **)pte = pte_quicklist; - pte_quicklist = (unsigned long *) pte; - pgtable_cache_size++; -} - -extern inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte) -{ - free_page((unsigned long)pte); -} - -extern inline void pte_free_slow(struct page *ptepage) -{ - __free_page(ptepage); -} - -extern inline void pte_free(struct mm_struct *mm, struct page *ptepage) -{ - __free_page(ptepage); -} - -#define __pte_free_tlb(tlb, pte, addr) pte_free((tlb)->mm, (pte)) - -#define pmd_populate(mm, pmd, pte) \ - (pmd_val(*(pmd)) = (unsigned long)page_address(pte)) - -#define pmd_populate_kernel(mm, pmd, pte) \ - (pmd_val(*(pmd)) = (unsigned long) (pte)) - -/* - * 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(mm, x) do { } while (0) -#define __pmd_free_tlb(tlb, x, addr) pmd_free((tlb)->mm, x) -#define pgd_populate(mm, pmd, pte) BUG() - -extern int do_check_pgt_cache(int, int); - -#endif /* CONFIG_MMU */ - -#define check_pgt_cache() do { } while (0) - -#endif /* _ASM_MICROBLAZE_PGALLOC_H */ |