2 files changed, 13 insertions, 6 deletions

diff --git a/include/asm-mips/cacheflush.h b/include/asm-mips/cacheflush.h
index 47bc8f6..36416fd 100644
--- a/include/asm-mips/cacheflush.h
+++ b/include/asm-mips/cacheflush.h
@@ -21,7 +21,6 @@
  *  - flush_cache_range(vma, start, end) flushes a range of pages
  *  - flush_icache_range(start, end) flush a range of instructions
  *  - flush_dcache_page(pg) flushes(wback&invalidates) a page for dcache
- *  - flush_icache_page(vma, pg) flushes(invalidates) a page for icache
  *
  * MIPS specific flush operations:
  *
@@ -39,7 +38,7 @@ extern void __flush_dcache_page(struct page *page);
 
 static inline void flush_dcache_page(struct page *page)
 {
-	if (cpu_has_dc_aliases)
+	if (cpu_has_dc_aliases || !cpu_has_ic_fills_f_dc)
 		__flush_dcache_page(page);
 
 }
@@ -47,8 +46,13 @@ 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)
 
-extern void (*flush_icache_page)(struct vm_area_struct *vma,
+extern void (*__flush_icache_page)(struct vm_area_struct *vma,
 	struct page *page);
+static inline void flush_icache_page(struct vm_area_struct *vma,
+	struct page *page)
+{
+}
+
 extern void (*flush_icache_range)(unsigned long start, unsigned long end);
 #define flush_cache_vmap(start, end)		flush_cache_all()
 #define flush_cache_vunmap(start, end)		flush_cache_all()
@@ -60,7 +64,7 @@ static inline void copy_to_user_page(struct vm_area_struct *vma,
 	if (cpu_has_dc_aliases)
 		flush_cache_page(vma, vaddr, page_to_pfn(page));
 	memcpy(dst, src, len);
-	flush_icache_page(vma, page);
+	__flush_icache_page(vma, page);
 }
 
 static inline void copy_from_user_page(struct vm_area_struct *vma,
diff --git a/include/asm-mips/page.h b/include/asm-mips/page.h
index 219d359..c3b872b 100644
--- a/include/asm-mips/page.h
+++ b/include/asm-mips/page.h
@@ -34,6 +34,8 @@
 
 #ifndef __ASSEMBLY__
 
+#include <asm/cpu-features.h>
+
 extern void clear_page(void * page);
 extern void copy_page(void * to, void * from);
 
@@ -53,7 +55,7 @@ static inline void clear_user_page(void *addr, unsigned long vaddr,
 	extern void (*flush_data_cache_page)(unsigned long addr);
 
 	clear_page(addr);
-	if (pages_do_alias((unsigned long) addr, vaddr))
+	if (pages_do_alias((unsigned long) addr, vaddr & PAGE_MASK))
 		flush_data_cache_page((unsigned long)addr);
 }
 
@@ -63,7 +65,8 @@ static inline void copy_user_page(void *vto, void *vfrom, unsigned long vaddr,
 	extern void (*flush_data_cache_page)(unsigned long addr);
 
 	copy_page(vto, vfrom);
-	if (pages_do_alias((unsigned long)vto, vaddr))
+	if (!cpu_has_ic_fills_f_dc ||
+	    pages_do_alias((unsigned long)vto, vaddr & PAGE_MASK))
 		flush_data_cache_page((unsigned long)vto);
 }