| 1 | #ifndef __ASM_CACHEFLUSH_H
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| 2 | #define __ASM_CACHEFLUSH_H
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| 3 |
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| 4 |
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| 5 | #include <linux/mm.h>
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| 6 |
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| 7 | |
| 8 | * The cache doesn't need to be flushed when TLB entries change when
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| 9 | * the cache is mapped to physical memory, not virtual memory
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| 10 |
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| 11 | #define flush_cache_all() do { } while (0)
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| 12 | #define flush_cache_mm(mm) do { } while (0)
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| 13 | #define flush_cache_dup_mm(mm) do { } while (0)
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| 14 | #define flush_cache_range(vma, start, end) do { } while (0)
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| 15 | #define flush_cache_page(vma, vmaddr, pfn) do { } while (0)
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| 16 | #define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0
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| 17 | #define flush_dcache_page(page) do { } while (0)
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| 18 | #define flush_dcache_mmap_lock(mapping) do { } while (0)
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| 19 | #define flush_dcache_mmap_unlock(mapping) do { } while (0)
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| 20 | #define flush_icache_range(start, end) do { } while (0)
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| 21 | #define flush_icache_page(vma,pg) do { } while (0)
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| 22 | #define flush_icache_user_range(vma,pg,adr,len) do { } while (0)
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| 23 | #define flush_cache_vmap(start, end) do { } while (0)
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| 24 | #define flush_cache_vunmap(start, end) do { } while (0)
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| 25 |
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| 26 | #define copy_to_user_page(vma, page, vaddr, dst, src, len) \
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| 27 | do { \
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| 28 | memcpy(dst, src, len); \
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| 29 | flush_icache_user_range(vma, page, vaddr, len); \
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| 30 | } while (0)
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| 31 | #define copy_from_user_page(vma, page, vaddr, dst, src, len) \
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| 32 | memcpy(dst, src, len)
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| 33 |
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| 34 | #endif
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