openwrt/target/linux/layerscape/patches-5.4/301-arch-0003-arm64-pgtable-add-support-to-map-cacheable-and-non-s.patch
John Audia 2abc55b2e2 kernel: bump 5.4 to 5.4.81
All modifications made by update_kernel.sh/no human intervention needed

Build system: x86_64
Build-tested: ipq806x/R7800, ath79/generic, bcm27xx/bcm2711
Run-tested: ipq806x/R7800

No dmesg regressions, everything functional

Signed-off-by: John Audia <graysky@archlinux.us>
[another refresh]
Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
2020-12-04 16:34:39 +01:00

23 lines
864 B
Diff

From d59be41c014e2e17ea0aaa37d42f36548ad063b5 Mon Sep 17 00:00:00 2001
From: Haiying Wang <Haiying.wang@freescale.com>
Date: Sat, 8 Aug 2015 07:25:02 -0400
Subject: [PATCH] arm64/pgtable: add support to map cacheable and non shareable
memory
Signed-off-by: Haiying Wang <Haiying.wang@freescale.com>
---
arch/arm64/include/asm/pgtable.h | 2 ++
1 file changed, 2 insertions(+)
--- a/arch/arm64/include/asm/pgtable.h
+++ b/arch/arm64/include/asm/pgtable.h
@@ -425,6 +425,8 @@ static inline pmd_t pmd_mkdevmap(pmd_t p
#define pgprot_cached(prot) \
__pgprot_modify(prot, PTE_ATTRINDX_MASK, PTE_ATTRINDX(MT_NORMAL) | \
PTE_PXN | PTE_UXN)
+#define pgprot_cached_ns(prot) \
+ __pgprot(pgprot_val(pgprot_cached(prot)) ^ PTE_SHARED)
#define pgprot_device(prot) \
__pgprot_modify(prot, PTE_ATTRINDX_MASK, PTE_ATTRINDX(MT_DEVICE_nGnRE) | PTE_PXN | PTE_UXN)
/*