ia64: use asm-generic/cacheflush.h

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>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Link: http://lkml.kernel.org/r/20200515143646.3857579-13-hch@lst.de
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/arch/ia64/include/asm/cacheflush.h b/arch/ia64/include/asm/cacheflush.h
index 6d3478f..a8f1c86 100644 (file)
--- 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 */