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ia64: use asm-generic/cacheflush.h
IA64 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> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: Tony Luck <tony.luck@intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Link: http://lkml.kernel.org/r/20200515143646.3857579-13-hch@lst.de Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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1 changed files with 3 additions and 25 deletions
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@ -12,44 +12,22 @@
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#include <asm/page.h>
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/*
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* Cache flushing routines. This is the kind of stuff that can be very expensive, so try
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* to avoid them whenever possible.
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*/
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#define flush_cache_all() do { } while (0)
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#define flush_cache_mm(mm) do { } while (0)
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#define flush_cache_dup_mm(mm) do { } while (0)
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#define flush_cache_range(vma, start, end) do { } while (0)
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#define flush_cache_page(vma, vmaddr, pfn) do { } while (0)
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#define flush_icache_page(vma,page) do { } while (0)
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#define flush_cache_vmap(start, end) do { } while (0)
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#define flush_cache_vunmap(start, end) do { } while (0)
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#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 1
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#define flush_dcache_page(page) \
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do { \
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clear_bit(PG_arch_1, &(page)->flags); \
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} while (0)
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#define flush_dcache_mmap_lock(mapping) do { } while (0)
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#define flush_dcache_mmap_unlock(mapping) do { } while (0)
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extern void flush_icache_range (unsigned long start, unsigned long end);
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extern void flush_icache_range(unsigned long start, unsigned long end);
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#define flush_icache_range flush_icache_range
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extern void clflush_cache_range(void *addr, int size);
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#define flush_icache_user_range(vma, page, user_addr, len) \
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do { \
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unsigned long _addr = (unsigned long) page_address(page) + ((user_addr) & ~PAGE_MASK); \
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flush_icache_range(_addr, _addr + (len)); \
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} while (0)
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#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
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do { memcpy(dst, src, len); \
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flush_icache_user_range(vma, page, vaddr, len); \
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} while (0)
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#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
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memcpy(dst, src, len)
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#include <asm-generic/cacheflush.h>
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#endif /* _ASM_IA64_CACHEFLUSH_H */
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