arm64: pgtable: add support to map cacheable and non shareable memory

Signed-off-by: Haiying Wang <Haiying.wang@freescale.com>
nxp-qoriq · Dec 12, 2022 · 62cd7e2 · 62cd7e2
1 parent 7d7bdd9
commit 62cd7e2
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/arch/arm64/include/asm/pgtable.h b/arch/arm64/include/asm/pgtable.h
@@ -564,6 +564,8 @@ static inline void set_pud_at(struct mm_struct *mm, unsigned long addr,
 #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)
 #define pgprot_tagged(prot) \