diff options
Diffstat (limited to 'include/asm-mips/page.h')
| -rw-r--r-- | include/asm-mips/page.h | 151 |
1 files changed, 0 insertions, 151 deletions
diff --git a/include/asm-mips/page.h b/include/asm-mips/page.h deleted file mode 100644 index 5cae35cd9ba..00000000000 --- a/include/asm-mips/page.h +++ /dev/null @@ -1,151 +0,0 @@ -/* - * 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. - * - * Copyright (C) 1994 - 1999, 2000, 03 Ralf Baechle - * Copyright (C) 1999, 2000 Silicon Graphics, Inc. - */ -#ifndef _ASM_PAGE_H -#define _ASM_PAGE_H - -#include <linux/config.h> - -#ifdef __KERNEL__ - -#include <spaces.h> - -#endif - -/* - * PAGE_SHIFT determines the page size - */ -#ifdef CONFIG_PAGE_SIZE_4KB -#define PAGE_SHIFT 12 -#endif -#ifdef CONFIG_PAGE_SIZE_8KB -#define PAGE_SHIFT 13 -#endif -#ifdef CONFIG_PAGE_SIZE_16KB -#define PAGE_SHIFT 14 -#endif -#ifdef CONFIG_PAGE_SIZE_64KB -#define PAGE_SHIFT 16 -#endif -#define PAGE_SIZE (1UL << PAGE_SHIFT) -#define PAGE_MASK (~((1 << PAGE_SHIFT) - 1)) - - -#ifdef __KERNEL__ -#ifndef __ASSEMBLY__ - -extern void clear_page(void * page); -extern void copy_page(void * to, void * from); - -extern unsigned long shm_align_mask; - -static inline unsigned long pages_do_alias(unsigned long addr1, - unsigned long addr2) -{ - return (addr1 ^ addr2) & shm_align_mask; -} - -struct page; - -static inline void clear_user_page(void *addr, unsigned long vaddr, - struct page *page) -{ - extern void (*flush_data_cache_page)(unsigned long addr); - - clear_page(addr); - if (pages_do_alias((unsigned long) addr, vaddr)) - flush_data_cache_page((unsigned long)addr); -} - -static inline void copy_user_page(void *vto, void *vfrom, unsigned long vaddr, - struct page *to) -{ - extern void (*flush_data_cache_page)(unsigned long addr); - - copy_page(vto, vfrom); - if (pages_do_alias((unsigned long)vto, vaddr)) - flush_data_cache_page((unsigned long)vto); -} - -/* - * These are used to make use of C type-checking.. - */ -#ifdef CONFIG_64BIT_PHYS_ADDR - #ifdef CONFIG_CPU_MIPS32 - typedef struct { unsigned long pte_low, pte_high; } pte_t; - #define pte_val(x) ((x).pte_low | ((unsigned long long)(x).pte_high << 32)) - #else - typedef struct { unsigned long long pte; } pte_t; - #define pte_val(x) ((x).pte) - #endif -#else -typedef struct { unsigned long pte; } pte_t; -#define pte_val(x) ((x).pte) -#endif - -typedef struct { unsigned long pmd; } pmd_t; -typedef struct { unsigned long pgd; } pgd_t; -typedef struct { unsigned long pgprot; } pgprot_t; - -#define pmd_val(x) ((x).pmd) -#define pgd_val(x) ((x).pgd) -#define pgprot_val(x) ((x).pgprot) - -#define ptep_buddy(x) ((pte_t *)((unsigned long)(x) ^ sizeof(pte_t))) - -#define __pte(x) ((pte_t) { (x) } ) -#define __pmd(x) ((pmd_t) { (x) } ) -#define __pgd(x) ((pgd_t) { (x) } ) -#define __pgprot(x) ((pgprot_t) { (x) } ) - -/* Pure 2^n version of get_order */ -static __inline__ int get_order(unsigned long size) -{ - int order; - - size = (size-1) >> (PAGE_SHIFT-1); - order = -1; - do { - size >>= 1; - order++; - } while (size); - return order; -} - -#endif /* !__ASSEMBLY__ */ - -/* to align the pointer to the (next) page boundary */ -#define PAGE_ALIGN(addr) (((addr) + PAGE_SIZE - 1) & PAGE_MASK) - -#define __pa(x) ((unsigned long) (x) - PAGE_OFFSET) -#define __va(x) ((void *)((unsigned long) (x) + PAGE_OFFSET)) - -#define pfn_to_kaddr(pfn) __va((pfn) << PAGE_SHIFT) - -#ifndef CONFIG_NEED_MULTIPLE_NODES -#define pfn_to_page(pfn) (mem_map + (pfn)) -#define page_to_pfn(page) ((unsigned long)((page) - mem_map)) -#define pfn_valid(pfn) ((pfn) < max_mapnr) -#endif - -#define virt_to_page(kaddr) pfn_to_page(__pa(kaddr) >> PAGE_SHIFT) -#define virt_addr_valid(kaddr) pfn_valid(__pa(kaddr) >> PAGE_SHIFT) - -#define VM_DATA_DEFAULT_FLAGS (VM_READ | VM_WRITE | VM_EXEC | \ - VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) - -#define UNCAC_ADDR(addr) ((addr) - PAGE_OFFSET + UNCAC_BASE) -#define CAC_ADDR(addr) ((addr) - UNCAC_BASE + PAGE_OFFSET) - -#endif /* defined (__KERNEL__) */ - -#ifdef CONFIG_LIMITED_DMA -#define WANT_PAGE_VIRTUAL -#endif - -#endif /* _ASM_PAGE_H */ |