manual update from upstream:

Applied Al's change 06a544971fad0992fe8b92c5647538d573089dd4
to new location of swiotlb.c

Signed-off-by: Tony Luck <tony.luck@intel.com>

1 files changed, 23 insertions, 8 deletions

diff --git a/include/asm-mips/cacheflush.h b/include/asm-mips/cacheflush.h
index 635f1bfb403e..a18ba2edc0b6 100644
--- a/include/asm-mips/cacheflush.h
+++ b/include/asm-mips/cacheflush.h
@@ -49,17 +49,29 @@ static inline void flush_dcache_page(struct page *page)
 
 extern void (*flush_icache_page)(struct vm_area_struct *vma,
 	struct page *page);
-extern void (*flush_icache_range)(unsigned long start, unsigned long end);
+extern void (*flush_icache_range)(unsigned long __user start,
+	unsigned long __user end);
 #define flush_cache_vmap(start, end)		flush_cache_all()
 #define flush_cache_vunmap(start, end)		flush_cache_all()
 
-#define copy_to_user_page(vma, page, vaddr, dst, src, len)		\
-do {									\
-	memcpy(dst, (void *) src, len);					\
-	flush_icache_page(vma, page);					\
-} while (0)
-#define copy_from_user_page(vma, page, vaddr, dst, src, len)		\
-	memcpy(dst, src, len)
+static inline void copy_to_user_page(struct vm_area_struct *vma,
+	struct page *page, unsigned long vaddr, void *dst, const void *src,
+	unsigned long len)
+{
+	if (cpu_has_dc_aliases)
+		flush_cache_page(vma, vaddr, page_to_pfn(page));
+	memcpy(dst, src, len);
+	flush_icache_page(vma, page);
+}
+
+static inline void copy_from_user_page(struct vm_area_struct *vma,
+	struct page *page, unsigned long vaddr, void *dst, const void *src,
+	unsigned long len)
+{
+	if (cpu_has_dc_aliases)
+		flush_cache_page(vma, vaddr, page_to_pfn(page));
+	memcpy(dst, src, len);
+}
 
 extern void (*flush_cache_sigtramp)(unsigned long addr);
 extern void (*flush_icache_all)(void);
@@ -78,4 +90,7 @@ extern void (*flush_data_cache_page)(unsigned long addr);
 #define ClearPageDcacheDirty(page)	\
 	clear_bit(PG_dcache_dirty, &(page)->flags)
 
+/* Run kernel code uncached, useful for cache probing functions. */
+unsigned long __init run_uncached(void *func);
+
 #endif /* _ASM_CACHEFLUSH_H */