[PATCHv3 03/11] arm/mm: Provide pmdp_establish() helper

From	"Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Newsgroups	linux.kernel
Subject	[PATCHv3 03/11] arm/mm: Provide pmdp_establish() helper
Date	2017-09-12 17:50 +0200
Message-ID	<uoVBL-37Z-17@gated-at.bofh.it> (permalink)
References	<uoVBL-37Z-13@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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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@linux.intel.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
---
 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

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[PATCHv3 03/11] arm/mm: Provide pmdp_establish() helper "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> - 2017-09-12 17:50 +0200

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