From: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
To: Andrew Morton <akpm@linux-foundation.org>,
Vlastimil Babka <vbabka@suse.cz>,
Vineet Gupta <vgupta@synopsys.com>,
Russell King <linux@armlinux.org.uk>,
Will Deacon <will.deacon@arm.com>,
Catalin Marinas <catalin.marinas@arm.com>,
Ralf Baechle <ralf@linux-mips.org>,
"David S. Miller" <davem@davemloft.net>,
"Aneesh Kumar K . V" <aneesh.kumar@linux.vnet.ibm.com>,
Martin Schwidefsky <schwidefsky@de.ibm.com>,
Heiko Carstens <heiko.carstens@de.ibm.com>,
Andrea Arcangeli <aarcange@redhat.com>
Cc: linux-arch@vger.kernel.org, linux-mm@kvack.org,
linux-kernel@vger.kernel.org,
"Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Subject: [PATCHv3 03/11] arm/mm: Provide pmdp_establish() helper
Date: Tue, 12 Sep 2017 18:39:33 +0300 [thread overview]
Message-ID: <20170912153941.47012-4-kirill.shutemov@linux.intel.com> (raw)
In-Reply-To: <20170912153941.47012-1-kirill.shutemov@linux.intel.com>
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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next prev parent reply other threads:[~2017-09-12 15:39 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-12 15:39 [PATCHv3 00/11] Do not loose dirty bit on THP pages Kirill A. Shutemov
2017-09-12 15:39 ` [PATCHv3 01/11] asm-generic: Provide generic_pmdp_establish() Kirill A. Shutemov
2017-09-12 15:39 ` [PATCHv3 02/11] arc: Use generic_pmdp_establish as pmdp_establish Kirill A. Shutemov
2017-09-12 15:39 ` Kirill A. Shutemov [this message]
2017-09-12 15:39 ` [PATCHv3 04/11] arm64: Provide pmdp_establish() helper Kirill A. Shutemov
2017-09-12 15:39 ` [PATCHv3 05/11] mips: Use generic_pmdp_establish as pmdp_establish Kirill A. Shutemov
2017-09-12 15:39 ` [PATCHv3 06/11] powerpc/mm: update pmdp_invalidate to return old pmd value Kirill A. Shutemov
2017-09-12 15:39 ` [PATCHv3 07/11] s390/mm: Modify pmdp_invalidate to return old value Kirill A. Shutemov
2017-09-12 15:39 ` [PATCHv3 08/11] sparc64: update pmdp_invalidate to return old pmd value Kirill A. Shutemov
2017-09-13 5:06 ` Aneesh Kumar K.V
2017-09-12 15:39 ` [PATCHv3 09/11] x86/mm: Provide pmdp_establish() helper Kirill A. Shutemov
2017-09-12 15:39 ` [PATCHv3 10/11] mm: Do not loose dirty and access bits in pmdp_invalidate() Kirill A. Shutemov
2017-09-12 15:39 ` [PATCHv3 11/11] mm: Use updated pmdp_invalidate() interface to track dirty/accessed bits Kirill A. Shutemov
2017-09-13 2:08 ` Aneesh Kumar K.V
2017-12-13 10:13 ` Kirill A. Shutemov
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