[PATCHv3 03/11] arm/mm: Provide pmdp_establish() helper
From: Kirill A. Shutemov
Date: Tue Sep 12 2017 - 11:40:04 EST
ARM LPAE doesn't have hardware dirty/accessed bits.
generic_pmdp_establish() is the right implementation of pmdp_establish
for this case.
Signed-off-by: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx>
Cc: Catalin Marinas <catalin.marinas@xxxxxxx>
---
arch/arm/include/asm/pgtable-3level.h | 3 +++
1 file changed, 3 insertions(+)
diff --git a/arch/arm/include/asm/pgtable-3level.h b/arch/arm/include/asm/pgtable-3level.h
index 2a029bceaf2f..57d57cb8cb9a 100644
--- a/arch/arm/include/asm/pgtable-3level.h
+++ b/arch/arm/include/asm/pgtable-3level.h
@@ -250,6 +250,9 @@ PMD_BIT_FUNC(mkyoung, |= PMD_SECT_AF);
#define pfn_pmd(pfn,prot) (__pmd(((phys_addr_t)(pfn) << PAGE_SHIFT) | pgprot_val(prot)))
#define mk_pmd(page,prot) pfn_pmd(page_to_pfn(page),prot)
+/* No hardware dirty/accessed bits -- generic_pmdp_establish() fits*/
+#define pmdp_establish generic_pmdp_establish
+
/* represent a notpresent pmd by faulting entry, this is used by pmdp_invalidate */
static inline pmd_t pmd_mknotpresent(pmd_t pmd)
{
--
2.14.1