summaryrefslogtreecommitdiffstats
path: root/include/asm-mips/cacheflush.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/asm-mips/cacheflush.h')
-rw-r--r--include/asm-mips/cacheflush.h31
1 files changed, 23 insertions, 8 deletions
diff --git a/include/asm-mips/cacheflush.h b/include/asm-mips/cacheflush.h
index 635f1bf..a18ba2e 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 */
OpenPOWER on IntegriCloud