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

Greg Ungerer
2020-05-12T14:44:59Z

Hi Christoph,

On 10/5/20 5:54 pm, Christoph Hellwig wrote:
> 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>

Acked-by: Greg Ungerer <gerg@linux-m68k.org>

Regards
Greg

> ---
> 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 */
>