301-arch-0002-arm64-add-support-to-remap-kernel-cacheable-memory-t.patch

From 0f90f5d6b3097fd6e7dea3389dc3d8f8894b345c Mon Sep 17 00:00:00 2001
From: Haiying Wang <Haiying.Wang@freescale.com>
Date: Wed, 22 Apr 2015 13:09:47 -0400
Subject: [PATCH] arm64: add support to remap kernel cacheable memory to
 userspace

Signed-off-by: Haiying Wang <Haiying.Wang@freescale.com>
Reviewed-by: Roy Pledge <roy.pledge@freescale.com>
Reviewed-by: Stuart Yoder <stuart.yoder@freescale.com>
---
 arch/arm64/include/asm/pgtable.h | 3 +++
 1 file changed, 3 insertions(+)

--- a/arch/arm64/include/asm/pgtable.h
+++ b/arch/arm64/include/asm/pgtable.h
@@ -414,6 +414,9 @@ static inline pmd_t pmd_mkdevmap(pmd_t p
 	__pgprot_modify(prot, PTE_ATTRINDX_MASK, PTE_ATTRINDX(MT_DEVICE_nGnRnE) | PTE_PXN | PTE_UXN)
 #define pgprot_writecombine(prot) \
 	__pgprot_modify(prot, PTE_ATTRINDX_MASK, PTE_ATTRINDX(MT_NORMAL_NC) | PTE_PXN | PTE_UXN)
+#define pgprot_cached(prot) \
+	__pgprot_modify(prot, PTE_ATTRINDX_MASK, PTE_ATTRINDX(MT_NORMAL) | \
+			PTE_PXN | PTE_UXN)
 #define pgprot_device(prot) \
 	__pgprot_modify(prot, PTE_ATTRINDX_MASK, PTE_ATTRINDX(MT_DEVICE_nGnRE) | PTE_PXN | PTE_UXN)
 /*