| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame] | 1 | From d59be41c014e2e17ea0aaa37d42f36548ad063b5 Mon Sep 17 00:00:00 2001 |
| 2 | From: Haiying Wang <Haiying.wang@freescale.com> |
| 3 | Date: Sat, 8 Aug 2015 07:25:02 -0400 |
| 4 | Subject: [PATCH] arm64/pgtable: add support to map cacheable and non shareable |
| 5 | memory |
| 6 | |
| 7 | Signed-off-by: Haiying Wang <Haiying.wang@freescale.com> |
| 8 | --- |
| 9 | arch/arm64/include/asm/pgtable.h | 2 ++ |
| 10 | 1 file changed, 2 insertions(+) |
| 11 | |
| 12 | --- a/arch/arm64/include/asm/pgtable.h |
| 13 | +++ b/arch/arm64/include/asm/pgtable.h |
| 14 | @@ -431,6 +431,8 @@ static inline pmd_t pmd_mkdevmap(pmd_t p |
| 15 | #define pgprot_cached(prot) \ |
| 16 | __pgprot_modify(prot, PTE_ATTRINDX_MASK, PTE_ATTRINDX(MT_NORMAL) | \ |
| 17 | PTE_PXN | PTE_UXN) |
| 18 | +#define pgprot_cached_ns(prot) \ |
| 19 | + __pgprot(pgprot_val(pgprot_cached(prot)) ^ PTE_SHARED) |
| 20 | #define pgprot_device(prot) \ |
| 21 | __pgprot_modify(prot, PTE_ATTRINDX_MASK, PTE_ATTRINDX(MT_DEVICE_nGnRE) | PTE_PXN | PTE_UXN) |
| 22 | /* |