From 57b94ff59796bfbf7debebb2293b66d96f726a12 Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Sun, 7 Jun 2020 21:42:01 -0700 Subject: 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 Signed-off-by: Andrew Morton Cc: Tony Luck Cc: Fenghua Yu Link: http://lkml.kernel.org/r/20200515143646.3857579-13-hch@lst.de Signed-off-by: Linus Torvalds --- arch/ia64/include/asm/cacheflush.h | 28 +++------------------------- 1 file changed, 3 insertions(+), 25 deletions(-) diff --git a/arch/ia64/include/asm/cacheflush.h b/arch/ia64/include/asm/cacheflush.h index 6d3478f8abc8..a8f1c86ac242 100644 --- a/arch/ia64/include/asm/cacheflush.h +++ b/arch/ia64/include/asm/cacheflush.h @@ -12,44 +12,22 @@ #include -/* - * 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 #endif /* _ASM_IA64_CACHEFLUSH_H */ -- cgit