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authorRalf Baechle <ralf@linux-mips.org>2007-03-23 17:36:37 -0400
committerRalf Baechle <ralf@linux-mips.org>2007-03-24 13:01:49 -0400
commit7575a49f209190ca640e0da792565a1bcb641f3e (patch)
treedb47f9fe06fefd279841941c5ff6f8d63dc54c45 /arch/mips/mm
parent80e89593e5a574a572f4e45e157733b5ea5ddfdb (diff)
[MIPS] Implement flush_anon_page().
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/mm')
-rw-r--r--arch/mips/mm/cache.c16
-rw-r--r--arch/mips/mm/init.c4
2 files changed, 17 insertions, 3 deletions
diff --git a/arch/mips/mm/cache.c b/arch/mips/mm/cache.c
index 31819c58bffa..4e8f1b683376 100644
--- a/arch/mips/mm/cache.c
+++ b/arch/mips/mm/cache.c
@@ -3,7 +3,8 @@
3 * License. See the file "COPYING" in the main directory of this archive 3 * License. See the file "COPYING" in the main directory of this archive
4 * for more details. 4 * for more details.
5 * 5 *
6 * Copyright (C) 1994 - 2003 by Ralf Baechle 6 * Copyright (C) 1994 - 2003, 07 by Ralf Baechle (ralf@linux-mips.org)
7 * Copyright (C) 2007 MIPS Technologies, Inc.
7 */ 8 */
8#include <linux/init.h> 9#include <linux/init.h>
9#include <linux/kernel.h> 10#include <linux/kernel.h>
@@ -88,6 +89,19 @@ void __flush_dcache_page(struct page *page)
88 89
89EXPORT_SYMBOL(__flush_dcache_page); 90EXPORT_SYMBOL(__flush_dcache_page);
90 91
92void __flush_anon_page(struct page *page, unsigned long vmaddr)
93{
94 if (pages_do_alias((unsigned long)page_address(page), vmaddr)) {
95 void *kaddr;
96
97 kaddr = kmap_coherent(page, vmaddr);
98 flush_data_cache_page((unsigned long)kaddr);
99 kunmap_coherent(kaddr);
100 }
101}
102
103EXPORT_SYMBOL(__flush_anon_page);
104
91void __update_cache(struct vm_area_struct *vma, unsigned long address, 105void __update_cache(struct vm_area_struct *vma, unsigned long address,
92 pte_t pte) 106 pte_t pte)
93{ 107{
diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c
index 25abe91da4ac..e9951c0e689f 100644
--- a/arch/mips/mm/init.c
+++ b/arch/mips/mm/init.c
@@ -123,7 +123,7 @@ static void __init kmap_coherent_init(void)
123static inline void kmap_coherent_init(void) {} 123static inline void kmap_coherent_init(void) {}
124#endif 124#endif
125 125
126static inline void *kmap_coherent(struct page *page, unsigned long addr) 126void *kmap_coherent(struct page *page, unsigned long addr)
127{ 127{
128 enum fixed_addresses idx; 128 enum fixed_addresses idx;
129 unsigned long vaddr, flags, entrylo; 129 unsigned long vaddr, flags, entrylo;
@@ -177,7 +177,7 @@ static inline void *kmap_coherent(struct page *page, unsigned long addr)
177 177
178#define UNIQUE_ENTRYHI(idx) (CKSEG0 + ((idx) << (PAGE_SHIFT + 1))) 178#define UNIQUE_ENTRYHI(idx) (CKSEG0 + ((idx) << (PAGE_SHIFT + 1)))
179 179
180static inline void kunmap_coherent(struct page *page) 180void kunmap_coherent(struct page *page)
181{ 181{
182#ifndef CONFIG_MIPS_MT_SMTC 182#ifndef CONFIG_MIPS_MT_SMTC
183 unsigned int wired; 183 unsigned int wired;