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Commit cc67ba63 authored by Akinobu Mita's avatar Akinobu Mita Committed by Ingo Molnar
Browse files

x86: Use asm-generic/cacheflush.h 



The implementation of the cache flushing interfaces on the x86
is identical with the default implementation in asm-generic.

Signed-off-by: default avatarAkinobu Mita <akinobu.mita@gmail.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: arnd@arndb.de
LKML-Reference: <1295523136-4277-2-git-send-email-akinobu.mita@gmail.com>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent fb87ec38

arch/x86/include/asm/cacheflush.h

+1 −41
Original line number Diff line number Diff line 
#ifndef _ASM_X86_CACHEFLUSH_H

#define _ASM_X86_CACHEFLUSH_H



/* Keep includes the same across arches.  */

#include <linux/mm.h>



/* Caches aren't brain-dead on the intel. */

static inline void flush_cache_all(void) { }

static inline void flush_cache_mm(struct mm_struct *mm) { }

static inline void flush_cache_dup_mm(struct mm_struct *mm) { }

static inline void flush_cache_range(struct vm_area_struct *vma,

				     unsigned long start, unsigned long end) { }

static inline void flush_cache_page(struct vm_area_struct *vma,

				    unsigned long vmaddr, unsigned long pfn) { }

#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0

static inline void flush_dcache_page(struct page *page) { }

static inline void flush_dcache_mmap_lock(struct address_space *mapping) { }

static inline void flush_dcache_mmap_unlock(struct address_space *mapping) { }

static inline void flush_icache_range(unsigned long start,

				      unsigned long end) { }

static inline void flush_icache_page(struct vm_area_struct *vma,

				     struct page *page) { }

static inline void flush_icache_user_range(struct vm_area_struct *vma,

					   struct page *page,

					   unsigned long addr,

					   unsigned long len) { }

static inline void flush_cache_vmap(unsigned long start, unsigned long end) { }

static inline void flush_cache_vunmap(unsigned long start,

				      unsigned long end) { }



static inline void copy_to_user_page(struct vm_area_struct *vma,

				     struct page *page, unsigned long vaddr,

				     void *dst, const void *src,

				     unsigned long len)

{

	memcpy(dst, src, len);

}



static inline void copy_from_user_page(struct vm_area_struct *vma,

				       struct page *page, unsigned long vaddr,

				       void *dst, const void *src,

				       unsigned long len)

{

	memcpy(dst, src, len);

}

#include <asm-generic/cacheflush.h>



#ifdef CONFIG_X86_PAT

/*