[PATCH 16/31] m68knommu: use asm-generic/cacheflush.h

Christoph Hellwig
2020-05-10T07:57:55Z

m68knommu 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/m68k/include/asm/cacheflush_no.h | 19 ++-----------------
1 file changed, 2 insertions(+), 17 deletions(-)

diff --git a/arch/m68k/include/asm/cacheflush_no.h b/arch/m68k/include/asm/cacheflush_no.h
index 11e9a9dcbfb24..2731f07e7be8c 100644
--- a/arch/m68k/include/asm/cacheflush_no.h
+++ b/arch/m68k/include/asm/cacheflush_no.h
@@ -9,25 +9,8 @@
#include <asm/mcfsim.h>

#define flush_cache_all() __flush_cache_all()
-#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) do { } while (0)
#define flush_dcache_range(start, len) __flush_dcache_all()
-#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0
-#define flush_dcache_page(page) 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, len) __flush_icache_all()
-#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) \
- memcpy(dst, src, len)
-#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
- memcpy(dst, src, len)

void mcf_cache_push(void);

@@ -98,4 +81,6 @@ static inline void cache_clear(unsigned long paddr, int len)
__clear_cache_all();
}

+#include <asm-generic/cacheflush.h>
+
#endif /* _M68KNOMMU_CACHEFLUSH_H */
--
2.26.2