[PATCH 15/29] openrisc: use asm-generic/cacheflush.h

Christoph Hellwig
2020-05-15T14:36:32Z

OpenRISC 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/openrisc/include/asm/cacheflush.h | 31 +++++---------------------
1 file changed, 6 insertions(+), 25 deletions(-)

diff --git a/arch/openrisc/include/asm/cacheflush.h b/arch/openrisc/include/asm/cacheflush.h
index 79d5d7753fe4b..74d1fce4e8839 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)