From: Christoph Hellwig Date: Mon, 8 Jun 2020 04:42:09 +0000 (-0700) Subject: openrisc: use asm-generic/cacheflush.h X-Git-Tag: v5.10.7~2398^2~15 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=e050945123065b1804446cf68cdd8dc2a6a2b9f2;p=platform%2Fkernel%2Flinux-rpi.git openrisc: use asm-generic/cacheflush.h OpenRISC 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: Jonas Bonn Cc: Stefan Kristiansson Cc: Stafford Horne Link: http://lkml.kernel.org/r/20200515143646.3857579-16-hch@lst.de Signed-off-by: Linus Torvalds --- diff --git a/arch/openrisc/include/asm/cacheflush.h b/arch/openrisc/include/asm/cacheflush.h index 79d5d77..74d1fce 100644 --- a/arch/openrisc/include/asm/cacheflush.h +++ b/arch/openrisc/include/asm/cacheflush.h @@ -62,31 +62,12 @@ static inline void flush_dcache_page(struct page *page) clear_bit(PG_dc_clean, &page->flags); } -/* - * Other interfaces are not required since we do not have virtually - * indexed or tagged caches. So we can use the default here. - */ -#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_dcache_mmap_lock(mapping) do { } while (0) -#define flush_dcache_mmap_unlock(mapping) do { } while (0) -#define flush_icache_range(start, end) do { } while (0) -#define flush_icache_page(vma, pg) do { } while (0) -#define flush_icache_user_range(vma, pg, adr, len) do { } while (0) -#define flush_cache_vmap(start, end) do { } while (0) -#define flush_cache_vunmap(start, end) do { } while (0) - -#define copy_to_user_page(vma, page, vaddr, dst, src, len) \ - do { \ - memcpy(dst, src, len); \ - if (vma->vm_flags & VM_EXEC) \ - sync_icache_dcache(page); \ - } while (0) +#define flush_icache_user_range(vma, page, addr, len) \ +do { \ + if (vma->vm_flags & VM_EXEC) \ + sync_icache_dcache(page); \ +} while (0) -#define copy_from_user_page(vma, page, vaddr, dst, src, len) \ - memcpy(dst, src, len) +#include #endif /* __ASM_CACHEFLUSH_H */