| /* |
| * 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, 95, 96, 97, 98, 99, 2000 by Ralf Baechle at alii |
| * Copyright (C) 1999 Silicon Graphics, Inc. |
| */ |
| #ifndef __ASM_CACHEFLUSH_H |
| #define __ASM_CACHEFLUSH_H |
| |
| #include <linux/config.h> |
| |
| struct mm_struct; |
| struct vm_area_struct; |
| struct page; |
| |
| /* Cache flushing: |
| * |
| * - flush_cache_all() flushes entire cache |
| * - flush_cache_mm(mm) flushes the specified mm context's cache lines |
| * - flush_cache_page(mm, vmaddr) flushes a single page |
| * - flush_cache_range(mm, start, end) flushes a range of pages |
| * - flush_page_to_ram(page) write back kernel page to ram |
| * - flush_icache_range(start, end) flush a range of instructions |
| * |
| * MIPS specific flush operations: |
| * |
| * - flush_cache_sigtramp() flush signal trampoline |
| * - flush_icache_all() flush the entire instruction cache |
| * - flush_data_cache_page() flushes a page from the data cache |
| */ |
| extern void (*_flush_cache_all)(void); |
| extern void (*___flush_cache_all)(void); |
| extern void (*_flush_cache_mm)(struct mm_struct *mm); |
| extern void (*_flush_cache_range)(struct mm_struct *mm, unsigned long start, |
| unsigned long end); |
| extern void (*_flush_cache_page)(struct vm_area_struct *vma, |
| unsigned long page); |
| extern void flush_dcache_page(struct page * page); |
| extern void (*_flush_icache_range)(unsigned long start, unsigned long end); |
| extern void (*_flush_icache_page)(struct vm_area_struct *vma, |
| struct page *page); |
| |
| extern void (*_flush_cache_sigtramp)(unsigned long addr); |
| extern void (*_flush_icache_all)(void); |
| extern void (*_flush_data_cache_page)(unsigned long addr); |
| |
| #define flush_cache_all() _flush_cache_all() |
| #define __flush_cache_all() ___flush_cache_all() |
| #define flush_cache_mm(mm) _flush_cache_mm(mm) |
| #define flush_cache_range(mm,start,end) _flush_cache_range(mm,start,end) |
| #define flush_cache_page(vma,page) _flush_cache_page(vma, page) |
| #define flush_page_to_ram(page) do { } while (0) |
| |
| #define flush_icache_range(start, end) _flush_icache_range(start,end) |
| #define flush_icache_user_range(vma, page, addr, len) \ |
| _flush_icache_page((vma), (page)) |
| #define flush_icache_page(vma, page) _flush_icache_page(vma, page) |
| |
| #define flush_cache_sigtramp(addr) _flush_cache_sigtramp(addr) |
| #define flush_data_cache_page(addr) _flush_data_cache_page(addr) |
| #ifdef CONFIG_VTAG_ICACHE |
| #define flush_icache_all() _flush_icache_all() |
| #else |
| #define flush_icache_all() do { } while(0) |
| #endif |
| |
| #endif /* __ASM_CACHEFLUSH_H */ |