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.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Mark Salter <msalter@redhat.com>
Cc: Aurelien Jacquiot <jacquiot.aurelien@gmail.com>
Link: http://lkml.kernel.org/r/20200515143646.3857579-11-hch@lst.de
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/arch/c6x/include/asm/cacheflush.h b/arch/c6x/include/asm/cacheflush.h
index 4540b40..10922d5 100644 (file)
--- a/arch/c6x/include/asm/cacheflush.h
+++ b/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 */