diff options
Diffstat (limited to 'target/linux/layerscape/patches-5.4/301-arch-0002-arm64-add-support-to-remap-kernel-cacheable-memory-t.patch')
| -rw-r--r-- | target/linux/layerscape/patches-5.4/301-arch-0002-arm64-add-support-to-remap-kernel-cacheable-memory-t.patch | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/target/linux/layerscape/patches-5.4/301-arch-0002-arm64-add-support-to-remap-kernel-cacheable-memory-t.patch b/target/linux/layerscape/patches-5.4/301-arch-0002-arm64-add-support-to-remap-kernel-cacheable-memory-t.patch new file mode 100644 index 0000000000..282f8e9ffa --- /dev/null +++ b/target/linux/layerscape/patches-5.4/301-arch-0002-arm64-add-support-to-remap-kernel-cacheable-memory-t.patch @@ -0,0 +1,25 @@ +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) + /* |