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phoenix |
/*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* Copyright (C) 1994, 95, 96, 97, 98, 99, 2000 by Ralf Baechle at alii
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* Copyright (C) 1999 Silicon Graphics, Inc.
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*/
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#ifndef __ASM_CACHEFLUSH_H
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#define __ASM_CACHEFLUSH_H
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#include <linux/config.h>
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struct mm_struct;
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struct vm_area_struct;
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struct page;
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/* Cache flushing:
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*
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* - flush_cache_all() flushes entire cache
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* - flush_cache_mm(mm) flushes the specified mm context's cache lines
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* - flush_cache_page(mm, vmaddr) flushes a single page
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* - flush_cache_range(mm, start, end) flushes a range of pages
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* - flush_page_to_ram(page) write back kernel page to ram
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* - flush_icache_range(start, end) flush a range of instructions
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*
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* MIPS specific flush operations:
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*
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* - flush_cache_sigtramp() flush signal trampoline
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* - flush_icache_all() flush the entire instruction cache
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* - flush_data_cache_page() flushes a page from the data cache
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*/
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extern void (*_flush_cache_all)(void);
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extern void (*___flush_cache_all)(void);
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extern void (*_flush_cache_mm)(struct mm_struct *mm);
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extern void (*_flush_cache_range)(struct mm_struct *mm, unsigned long start,
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unsigned long end);
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extern void (*_flush_cache_page)(struct vm_area_struct *vma,
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unsigned long page);
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extern void flush_dcache_page(struct page * page);
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extern void (*_flush_icache_range)(unsigned long start, unsigned long end);
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extern void (*_flush_icache_page)(struct vm_area_struct *vma,
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struct page *page);
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extern void (*_flush_cache_sigtramp)(unsigned long addr);
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extern void (*_flush_icache_all)(void);
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extern void (*_flush_data_cache_page)(unsigned long addr);
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#define flush_cache_all() _flush_cache_all()
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#define __flush_cache_all() ___flush_cache_all()
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#define flush_cache_mm(mm) _flush_cache_mm(mm)
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#define flush_cache_range(mm,start,end) _flush_cache_range(mm,start,end)
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#define flush_cache_page(vma,page) _flush_cache_page(vma, page)
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#define flush_page_to_ram(page) do { } while (0)
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#define flush_icache_range(start, end) _flush_icache_range(start,end)
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#define flush_icache_user_range(vma, page, addr, len) \
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_flush_icache_page((vma), (page))
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#define flush_icache_page(vma, page) _flush_icache_page(vma, page)
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#define flush_cache_sigtramp(addr) _flush_cache_sigtramp(addr)
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#define flush_data_cache_page(addr) _flush_data_cache_page(addr)
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#ifdef CONFIG_VTAG_ICACHE
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#define flush_icache_all() _flush_icache_all()
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#else
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#define flush_icache_all() do { } while(0)
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#endif
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#endif /* __ASM_CACHEFLUSH_H */
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