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| author | Paul Mundt <lethal@linux-sh.org> | 2007-11-05 08:12:32 +0100 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2007-11-07 03:14:12 +0100 |
| commit | 7747b9a493a197cb4db44c98d25ce6d3d9f586d1 (patch) | |
| tree | 636aa0624e6768ef0e8ea02d0692f91dfb51d79f /include/asm-sh/page.h | |
| parent | sh: Kill off the remaining ST40 cruft. (diff) | |
| download | linux-7747b9a493a197cb4db44c98d25ce6d3d9f586d1.tar.xz linux-7747b9a493a197cb4db44c98d25ce6d3d9f586d1.zip | |
sh: Wire up clear_user_highpage().
With the kmap_coherent() API in place, this is trivial to implement,
and lets us avoid the cache flush in certain cases.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'include/asm-sh/page.h')
| -rw-r--r-- | include/asm-sh/page.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/asm-sh/page.h b/include/asm-sh/page.h index 3aa8b07da47d..5e69de1eacdf 100644 --- a/include/asm-sh/page.h +++ b/include/asm-sh/page.h @@ -73,10 +73,16 @@ extern void copy_page_nommu(void *to, void *from); #if !defined(CONFIG_CACHE_OFF) && defined(CONFIG_MMU) && \ (defined(CONFIG_CPU_SH4) || defined(CONFIG_SH7705_CACHE_32KB)) struct page; +struct vm_area_struct; extern void clear_user_page(void *to, unsigned long address, struct page *pg); extern void copy_user_page(void *to, void *from, unsigned long address, struct page *pg); extern void __clear_user_page(void *to, void *orig_to); extern void __copy_user_page(void *to, void *from, void *orig_to); +#ifdef CONFIG_CPU_SH4 +extern void copy_user_highpage(struct page *to, struct page *from, + unsigned long vaddr, struct vm_area_struct *vma); +#define __HAVE_ARCH_COPY_USER_HIGHPAGE +#endif #else #define clear_user_page(page, vaddr, pg) clear_page(page) #define copy_user_page(to, from, vaddr, pg) copy_page(to, from) |