[MIPS] Implement flush_anon_page().

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 12 insertions, 0 deletions

diff --git a/include/asm-mips/cacheflush.h b/include/asm-mips/cacheflush.h
index 0ddada3bb0b6..28d907d4347a 100644
--- a/include/asm-mips/cacheflush.h
+++ b/include/asm-mips/cacheflush.h
@@ -48,6 +48,15 @@ static inline void flush_dcache_page(struct page *page)
 #define flush_dcache_mmap_lock(mapping)         do { } while (0)
 #define flush_dcache_mmap_unlock(mapping)       do { } while (0)
 
+#define ARCH_HAS_FLUSH_ANON_PAGE
+extern void __flush_anon_page(struct page *, unsigned long);
+static inline void flush_anon_page(struct vm_area_struct *vma,
+        struct page *page, unsigned long vmaddr)
+{
+        if (cpu_has_dc_aliases && PageAnon(page))
+                __flush_anon_page(page, vmaddr);
+}
+
 static inline void flush_icache_page(struct vm_area_struct *vma,
         struct page *page)
 {
@@ -86,4 +95,7 @@ extern void (*flush_data_cache_page)(unsigned long addr);
 /* Run kernel code uncached, useful for cache probing functions. */
 unsigned long __init run_uncached(void *func);
 
+extern void *kmap_coherent(struct page *page, unsigned long addr);
+extern void kunmap_coherent(struct page *page);
+
 #endif /* _ASM_CACHEFLUSH_H */