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[MIPS] Implement flush_anon_page().

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Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Ralf Baechle
2007-03-23 21:36:37 +00:00
parent 80e89593e5
commit 7575a49f20
3 changed files with 29 additions and 3 deletions
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16
arch/mips/mm/cache.c
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@@ -3,7 +3,8 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* Copyright (C) 1994 - 2003 by Ralf Baechle
* Copyright (C) 1994 - 2003, 07 by Ralf Baechle (ralf@linux-mips.org)
* Copyright (C) 2007 MIPS Technologies, Inc.
*/
#include <linux/init.h>
#include <linux/kernel.h>
@@ -88,6 +89,19 @@ void __flush_dcache_page(struct page *page)
EXPORT_SYMBOL(__flush_dcache_page);
void __flush_anon_page(struct page *page, unsigned long vmaddr)
{
if (pages_do_alias((unsigned long)page_address(page), vmaddr)) {
void *kaddr;
kaddr = kmap_coherent(page, vmaddr);
flush_data_cache_page((unsigned long)kaddr);
kunmap_coherent(kaddr);
}
}
EXPORT_SYMBOL(__flush_anon_page);
void __update_cache(struct vm_area_struct *vma, unsigned long address,
pte_t pte)
{