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Diffstat (limited to 'arch/xtensa/include/asm/cacheflush.h')
-rw-r--r--arch/xtensa/include/asm/cacheflush.h40
1 files changed, 25 insertions, 15 deletions
diff --git a/arch/xtensa/include/asm/cacheflush.h b/arch/xtensa/include/asm/cacheflush.h
index 127cd48883c4..555a98a18453 100644
--- a/arch/xtensa/include/asm/cacheflush.h
+++ b/arch/xtensa/include/asm/cacheflush.h
@@ -1,18 +1,14 @@
/*
- * include/asm-xtensa/cacheflush.h
- *
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
- * (C) 2001 - 2007 Tensilica Inc.
+ * (C) 2001 - 2013 Tensilica Inc.
*/
#ifndef _XTENSA_CACHEFLUSH_H
#define _XTENSA_CACHEFLUSH_H
-#ifdef __KERNEL__
-
#include <linux/mm.h>
#include <asm/processor.h>
#include <asm/page.h>
@@ -51,7 +47,6 @@ extern void __invalidate_icache_page(unsigned long);
extern void __invalidate_icache_range(unsigned long, unsigned long);
extern void __invalidate_dcache_range(unsigned long, unsigned long);
-
#if XCHAL_DCACHE_IS_WRITEBACK
extern void __flush_invalidate_dcache_all(void);
extern void __flush_dcache_page(unsigned long);
@@ -87,9 +82,22 @@ static inline void __invalidate_icache_page_alias(unsigned long virt,
* (see also Documentation/cachetlb.txt)
*/
-#if (DCACHE_WAY_SIZE > PAGE_SIZE)
+#if (DCACHE_WAY_SIZE > PAGE_SIZE) || defined(CONFIG_SMP)
+
+#ifdef CONFIG_SMP
+void flush_cache_all(void);
+void flush_cache_range(struct vm_area_struct*, ulong, ulong);
+void flush_icache_range(unsigned long start, unsigned long end);
+void flush_cache_page(struct vm_area_struct*,
+ unsigned long, unsigned long);
+#else
+#define flush_cache_all local_flush_cache_all
+#define flush_cache_range local_flush_cache_range
+#define flush_icache_range local_flush_icache_range
+#define flush_cache_page local_flush_cache_page
+#endif
-#define flush_cache_all() \
+#define local_flush_cache_all() \
do { \
__flush_invalidate_dcache_all(); \
__invalidate_icache_all(); \
@@ -103,9 +111,11 @@ static inline void __invalidate_icache_page_alias(unsigned long virt,
#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
extern void flush_dcache_page(struct page*);
-extern void flush_cache_range(struct vm_area_struct*, ulong, ulong);
-extern void flush_cache_page(struct vm_area_struct*,
- unsigned long, unsigned long);
+
+void local_flush_cache_range(struct vm_area_struct *vma,
+ unsigned long start, unsigned long end);
+void local_flush_cache_page(struct vm_area_struct *vma,
+ unsigned long address, unsigned long pfn);
#else
@@ -119,13 +129,14 @@ extern void flush_cache_page(struct vm_area_struct*,
#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0
#define flush_dcache_page(page) do { } while (0)
-#define flush_cache_page(vma,addr,pfn) do { } while (0)
-#define flush_cache_range(vma,start,end) do { } while (0)
+#define flush_icache_range local_flush_icache_range
+#define flush_cache_page(vma, addr, pfn) do { } while (0)
+#define flush_cache_range(vma, start, end) do { } while (0)
#endif
/* Ensure consistency between data and instruction cache. */
-#define flush_icache_range(start,end) \
+#define local_flush_icache_range(start, end) \
do { \
__flush_dcache_range(start, (end) - (start)); \
__invalidate_icache_range(start,(end) - (start)); \
@@ -253,5 +264,4 @@ static inline void flush_invalidate_dcache_unaligned(u32 addr, u32 size)
}
}
-#endif /* __KERNEL__ */
#endif /* _XTENSA_CACHEFLUSH_H */