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/*
* 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 */
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