| 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 |
| @@ -428,6 +428,9 @@ 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) |
| /* |