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Diffstat (limited to 'include/asm-sparc64/pgalloc.h')
| -rw-r--r-- | include/asm-sparc64/pgalloc.h | 184 |
1 files changed, 0 insertions, 184 deletions
diff --git a/include/asm-sparc64/pgalloc.h b/include/asm-sparc64/pgalloc.h deleted file mode 100644 index a96067cca96..00000000000 --- a/include/asm-sparc64/pgalloc.h +++ /dev/null @@ -1,184 +0,0 @@ -/* $Id: pgalloc.h,v 1.30 2001/12/21 04:56:17 davem Exp $ */ -#ifndef _SPARC64_PGALLOC_H -#define _SPARC64_PGALLOC_H - -#include <linux/config.h> -#include <linux/kernel.h> -#include <linux/sched.h> -#include <linux/mm.h> - -#include <asm/spitfire.h> -#include <asm/cpudata.h> -#include <asm/cacheflush.h> -#include <asm/page.h> - -/* Page table allocation/freeing. */ -#ifdef CONFIG_SMP -/* Sliiiicck */ -#define pgt_quicklists local_cpu_data() -#else -extern struct pgtable_cache_struct { - unsigned long *pgd_cache; - unsigned long *pte_cache[2]; - unsigned int pgcache_size; -} pgt_quicklists; -#endif -#define pgd_quicklist (pgt_quicklists.pgd_cache) -#define pmd_quicklist ((unsigned long *)0) -#define pte_quicklist (pgt_quicklists.pte_cache) -#define pgtable_cache_size (pgt_quicklists.pgcache_size) - -static __inline__ void free_pgd_fast(pgd_t *pgd) -{ - preempt_disable(); - *(unsigned long *)pgd = (unsigned long) pgd_quicklist; - pgd_quicklist = (unsigned long *) pgd; - pgtable_cache_size++; - preempt_enable(); -} - -static __inline__ pgd_t *get_pgd_fast(void) -{ - unsigned long *ret; - - preempt_disable(); - if((ret = pgd_quicklist) != NULL) { - pgd_quicklist = (unsigned long *)(*ret); - ret[0] = 0; - pgtable_cache_size--; - preempt_enable(); - } else { - preempt_enable(); - ret = (unsigned long *) __get_free_page(GFP_KERNEL|__GFP_REPEAT); - if(ret) - memset(ret, 0, PAGE_SIZE); - } - return (pgd_t *)ret; -} - -static __inline__ void free_pgd_slow(pgd_t *pgd) -{ - free_page((unsigned long)pgd); -} - -#ifdef DCACHE_ALIASING_POSSIBLE -#define VPTE_COLOR(address) (((address) >> (PAGE_SHIFT + 10)) & 1UL) -#define DCACHE_COLOR(address) (((address) >> PAGE_SHIFT) & 1UL) -#else -#define VPTE_COLOR(address) 0 -#define DCACHE_COLOR(address) 0 -#endif - -#define pud_populate(MM, PUD, PMD) pud_set(PUD, PMD) - -static __inline__ pmd_t *pmd_alloc_one_fast(struct mm_struct *mm, unsigned long address) -{ - unsigned long *ret; - int color = 0; - - preempt_disable(); - if (pte_quicklist[color] == NULL) - color = 1; - - if((ret = (unsigned long *)pte_quicklist[color]) != NULL) { - pte_quicklist[color] = (unsigned long *)(*ret); - ret[0] = 0; - pgtable_cache_size--; - } - preempt_enable(); - - return (pmd_t *)ret; -} - -static __inline__ pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address) -{ - pmd_t *pmd; - - pmd = pmd_alloc_one_fast(mm, address); - if (!pmd) { - pmd = (pmd_t *)__get_free_page(GFP_KERNEL|__GFP_REPEAT); - if (pmd) - memset(pmd, 0, PAGE_SIZE); - } - return pmd; -} - -static __inline__ void free_pmd_fast(pmd_t *pmd) -{ - unsigned long color = DCACHE_COLOR((unsigned long)pmd); - - preempt_disable(); - *(unsigned long *)pmd = (unsigned long) pte_quicklist[color]; - pte_quicklist[color] = (unsigned long *) pmd; - pgtable_cache_size++; - preempt_enable(); -} - -static __inline__ void free_pmd_slow(pmd_t *pmd) -{ - free_page((unsigned long)pmd); -} - -#define pmd_populate_kernel(MM, PMD, PTE) pmd_set(PMD, PTE) -#define pmd_populate(MM,PMD,PTE_PAGE) \ - pmd_populate_kernel(MM,PMD,page_address(PTE_PAGE)) - -extern pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address); - -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__ pte_t *pte_alloc_one_fast(struct mm_struct *mm, unsigned long address) -{ - unsigned long color = VPTE_COLOR(address); - unsigned long *ret; - - preempt_disable(); - if((ret = (unsigned long *)pte_quicklist[color]) != NULL) { - pte_quicklist[color] = (unsigned long *)(*ret); - ret[0] = 0; - pgtable_cache_size--; - } - preempt_enable(); - return (pte_t *)ret; -} - -static __inline__ void free_pte_fast(pte_t *pte) -{ - unsigned long color = DCACHE_COLOR((unsigned long)pte); - - preempt_disable(); - *(unsigned long *)pte = (unsigned long) pte_quicklist[color]; - pte_quicklist[color] = (unsigned long *) pte; - pgtable_cache_size++; - preempt_enable(); -} - -static __inline__ void free_pte_slow(pte_t *pte) -{ - free_page((unsigned long)pte); -} - -static inline void pte_free_kernel(pte_t *pte) -{ - free_pte_fast(pte); -} - -static inline void pte_free(struct page *ptepage) -{ - free_pte_fast(page_address(ptepage)); -} - -#define pmd_free(pmd) free_pmd_fast(pmd) -#define pgd_free(pgd) free_pgd_fast(pgd) -#define pgd_alloc(mm) get_pgd_fast() - -#endif /* _SPARC64_PGALLOC_H */ |