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sh: Use the now generic SH-4 clear/copy page ops for all MMU platforms.

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Now that the SH-4 page clear/copy ops are generic, they can be used for
all platforms with CONFIG_MMU=y. SH-5 remains the odd one out, but it too
will gradually be converted over to using this interface.

SH-3 platforms which do not contain aliases will see no impact from this
change, while aliasing SH-3 platforms will get the same interface as
SH-4.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Paul Mundt
2009-07-27 21:30:17 +09:00
parent 221c007b02
commit 0dfae7d5a2
6 changed files with 38 additions and 33 deletions
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17
arch/sh/mm/cache-sh5.c
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@@ -831,4 +831,21 @@ void clear_user_page(void *to, unsigned long address, struct page *page)
else
sh64_clear_user_page_coloured(to, address);
}
void copy_to_user_page(struct vm_area_struct *vma, struct page *page,
unsigned long vaddr, void *dst, const void *src,
unsigned long len)
{
flush_cache_page(vma, vaddr, page_to_pfn(page));
memcpy(dst, src, len);
flush_icache_user_range(vma, page, vaddr, len);
}
void copy_from_user_page(struct vm_area_struct *vma, struct page *page,
unsigned long vaddr, void *dst, const void *src,
unsigned long len)
{
flush_cache_page(vma, vaddr, page_to_pfn(page));
memcpy(dst, src, len);
}
#endif