diff mbox series

[14/31] ia64: use asm-generic/cacheflush.h

Message ID 20200510075510.987823-15-hch@lst.de (mailing list archive)
State Superseded
Headers show
Series [01/31] arm: fix the flush_icache_range arguments in set_fiq_handler | expand

Commit Message

Christoph Hellwig May 10, 2020, 7:54 a.m. UTC 
IA64 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>
---
 arch/ia64/include/asm/cacheflush.h | 28 +++-------------------------
 1 file changed, 3 insertions(+), 25 deletions(-)
diff mbox series

Patch

diff --git a/arch/ia64/include/asm/cacheflush.h b/arch/ia64/include/asm/cacheflush.h
index 6d3478f8abc89..a8f1c86ac242a 100644
--- a/arch/ia64/include/asm/cacheflush.h
+++ b/arch/ia64/include/asm/cacheflush.h
@@ -12,44 +12,22 @@ 
 
 #include <asm/page.h>
 
-/*
- * Cache flushing routines.  This is the kind of stuff that can be very expensive, so try
- * to avoid them whenever possible.
- */
-
-#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(vma, start, end)	do { } while (0)
-#define flush_cache_page(vma, vmaddr, pfn)	do { } while (0)
-#define flush_icache_page(vma,page)		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 1
 #define flush_dcache_page(page)			\
 do {						\
 	clear_bit(PG_arch_1, &(page)->flags);	\
 } while (0)
 
-#define flush_dcache_mmap_lock(mapping)		do { } while (0)
-#define flush_dcache_mmap_unlock(mapping)	do { } while (0)
-
-extern void flush_icache_range (unsigned long start, unsigned long end);
+extern void flush_icache_range(unsigned long start, unsigned long end);
+#define flush_icache_range flush_icache_range
 extern void clflush_cache_range(void *addr, int size);
 
-
 #define flush_icache_user_range(vma, page, user_addr, len)					\
 do {												\
 	unsigned long _addr = (unsigned long) page_address(page) + ((user_addr) & ~PAGE_MASK);	\
 	flush_icache_range(_addr, _addr + (len));						\
 } while (0)
 
-#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
-do { memcpy(dst, src, len); \
-     flush_icache_user_range(vma, page, vaddr, 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_IA64_CACHEFLUSH_H */