From 5bba49f5397c012d873c73860ad7b50c526e613b Mon Sep 17 00:00:00 2001
From: Vineet Gupta <vgupta@synopsys.com>
Date: Thu, 9 May 2013 19:20:43 +0530
Subject: ARC: [mm] Aliasing VIPT dcache support 4/4

Enforce congruency of userspace shared mappings

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
---
 arch/arc/include/asm/pgtable.h | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'arch/arc/include/asm/pgtable.h')

diff --git a/arch/arc/include/asm/pgtable.h b/arch/arc/include/asm/pgtable.h
index b7e36684c091..1cc4720faccb 100644
--- a/arch/arc/include/asm/pgtable.h
+++ b/arch/arc/include/asm/pgtable.h
@@ -395,6 +395,9 @@ void update_mmu_cache(struct vm_area_struct *vma, unsigned long address,
 
 #include <asm-generic/pgtable.h>
 
+/* to cope with aliasing VIPT cache */
+#define HAVE_ARCH_UNMAPPED_AREA
+
 /*
  * No page table caches to initialise
  */
-- 
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