[patch 34/54] c6x: use asm-generic/cacheflush.h

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From: Christoph Hellwig <hch@xxxxxx>
Subject: c6x: use asm-generic/cacheflush.h

C6x needs almost no cache flushing routines of its own.  Rely on
asm-generic/cacheflush.h for the defaults.

Link: http://lkml.kernel.org/r/20200515143646.3857579-11-hch@xxxxxx
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
Acked-by: Mark Salter <msalter@xxxxxxxxxx>
Cc: Aurelien Jacquiot <jacquiot.aurelien@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---

 arch/c6x/include/asm/cacheflush.h |   19 +------------------
 1 file changed, 1 insertion(+), 18 deletions(-)

--- a/arch/c6x/include/asm/cacheflush.h~c6x-use-asm-generic-cacheflushh
+++ a/arch/c6x/include/asm/cacheflush.h
@@ -17,21 +17,6 @@
 #include <asm/string.h>
 
 /*
- * virtually-indexed cache management (our cache is physically indexed)
- */
-#define flush_cache_all()			do {} while (0)
-#define flush_cache_mm(mm)			do {} while (0)
-#define flush_cache_dup_mm(mm)			do {} while (0)
-#define flush_cache_range(mm, start, end)	do {} while (0)
-#define flush_cache_page(vma, vmaddr, pfn)	do {} while (0)
-#define flush_cache_vmap(start, end)		do {} while (0)
-#define flush_cache_vunmap(start, end)		do {} while (0)
-#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0
-#define flush_dcache_page(page)			do {} while (0)
-#define flush_dcache_mmap_lock(mapping)		do {} while (0)
-#define flush_dcache_mmap_unlock(mapping)	do {} while (0)
-
-/*
  * physically-indexed cache management
  */
 #define flush_icache_range(s, e)				  \
@@ -49,14 +34,12 @@ do {								  \
 			(unsigned long) page_address(page) + PAGE_SIZE)); \
 } while (0)
 
-
 #define copy_to_user_page(vma, page, vaddr, dst, src, len) \
 do {						     \
 	memcpy(dst, src, len);			     \
 	flush_icache_range((unsigned) (dst), (unsigned) (dst) + (len)); \
 } while (0)
 
-#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
-	memcpy(dst, src, len)
+#include <asm-generic/cacheflush.h>
 
 #endif /* _ASM_C6X_CACHEFLUSH_H */
_



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