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>
diff --git a/arch/xtensa/include/asm/cacheflush.h b/arch/xtensa/include/asm/cacheflush.h
index a508f2f..376cd9d 100644
--- a/arch/xtensa/include/asm/cacheflush.h
+++ b/arch/xtensa/include/asm/cacheflush.h
@@ -115,6 +115,7 @@
#define flush_cache_vmap(start,end) do { } while (0)
#define flush_cache_vunmap(start,end) do { } while (0)
+#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0
#define flush_dcache_page(page) do { } while (0)
#define flush_cache_page(vma,addr,pfn) do { } while (0)