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xtensa: Fix FLUSH_DCACHE macro for some variants.
Define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE also for processor configurations that don't have cache-aliasing. Signed-off-by: Chris Zankel <chris@zankel.net>
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@ -115,6 +115,7 @@ extern void flush_cache_page(struct vm_area_struct*, unsigned long, unsigned lon
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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 0
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#define flush_dcache_page(page) do { } while (0)
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#define flush_cache_page(vma,addr,pfn) do { } while (0)
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