Re: [PATCH 16/31] m68knommu: use asm-generic/cacheflush.h
From: Greg Ungerer <gerg@linux-m68k.org>
Date: 2020-05-12 14:45:14
Also in:
linux-alpha, linux-arch, linux-arm-kernel, linux-fsdevel, linux-m68k, linux-mips, linux-mm, linux-riscv, linux-sh, linux-um, lkml, sparclinux
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
quoted hunk ↗ jump to hunk
--- 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 */