From: zi.yan@sent.com
To: linux-kernel@vger.kernel.org, linux-mm@kvack.org
Cc: benh@kernel.crashing.org, mgorman@techsingularity.net,
kirill.shutemov@linux.intel.com, akpm@linux-foundation.org,
dave.hansen@linux.intel.com, n-horiguchi@ah.jp.nec.com,
Zi Yan <zi.yan@cs.rutgers.edu>
Subject: [PATCH v1 12/12] mm: ppc64: Add THP migration support for ppc64.
Date: Mon, 26 Sep 2016 11:22:34 -0400 [thread overview]
Message-ID: <20160926152234.14809-13-zi.yan@sent.com> (raw)
In-Reply-To: <20160926152234.14809-1-zi.yan@sent.com>
From: Zi Yan <zi.yan@cs.rutgers.edu>
Signed-off-by: Zi Yan <zi.yan@cs.rutgers.edu>
---
arch/powerpc/Kconfig | 4 ++++
arch/powerpc/include/asm/book3s/64/pgtable.h | 23 +++++++++++++++++++++++
2 files changed, 27 insertions(+)
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 927d2ab..84ffd4c 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -553,6 +553,10 @@ config ARCH_SPARSEMEM_DEFAULT
config SYS_SUPPORTS_HUGETLBFS
bool
+config ARCH_ENABLE_THP_MIGRATION
+ def_bool y
+ depends on PPC64 && TRANSPARENT_HUGEPAGE && MIGRATION
+
source "mm/Kconfig"
config ARCH_MEMORY_PROBE
diff --git a/arch/powerpc/include/asm/book3s/64/pgtable.h b/arch/powerpc/include/asm/book3s/64/pgtable.h
index 263bf39..9dee0467 100644
--- a/arch/powerpc/include/asm/book3s/64/pgtable.h
+++ b/arch/powerpc/include/asm/book3s/64/pgtable.h
@@ -521,7 +521,9 @@ static inline bool pte_user(pte_t pte)
* Clear bits not found in swap entries here.
*/
#define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val((pte)) & ~_PAGE_PTE })
+#define __pmd_to_swp_entry(pte) ((swp_entry_t) { pmd_val((pte)) & ~_PAGE_PTE })
#define __swp_entry_to_pte(x) __pte((x).val | _PAGE_PTE)
+#define __swp_entry_to_pmd(x) __pmd((x).val | _PAGE_PTE)
#ifdef CONFIG_MEM_SOFT_DIRTY
#define _PAGE_SWP_SOFT_DIRTY (1UL << (SWP_TYPE_BITS + _PAGE_BIT_SWAP_TYPE))
@@ -662,6 +664,10 @@ static inline int pmd_bad(pmd_t pmd)
return radix__pmd_bad(pmd);
return hash__pmd_bad(pmd);
}
+static inline int __pmd_present(pmd_t pte)
+{
+ return !!(pmd_val(pte) & _PAGE_PRESENT);
+}
static inline void pud_set(pud_t *pudp, unsigned long val)
{
@@ -850,6 +856,23 @@ static inline pte_t *pmdp_ptep(pmd_t *pmd)
#define pmd_soft_dirty(pmd) pte_soft_dirty(pmd_pte(pmd))
#define pmd_mksoft_dirty(pmd) pte_pmd(pte_mksoft_dirty(pmd_pte(pmd)))
#define pmd_clear_soft_dirty(pmd) pte_pmd(pte_clear_soft_dirty(pmd_pte(pmd)))
+
+#ifdef CONFIG_ARCH_ENABLE_THP_MIGRATION
+static inline pmd_t pmd_swp_mksoft_dirty(pmd_t pmd)
+{
+ return pte_pmd(pte_swp_mksoft_dirty(pmd_pte(pmd)));
+}
+
+static inline int pmd_swp_soft_dirty(pmd_t pmd)
+{
+ return pte_swp_soft_dirty(pmd_pte(pmd));
+}
+
+static inline pmd_t pmd_swp_clear_soft_dirty(pmd_t pmd)
+{
+ return pte_pmd(pte_swp_clear_soft_dirty(pmd_pte(pmd)));
+}
+#endif
#endif /* CONFIG_HAVE_ARCH_SOFT_DIRTY */
#ifdef CONFIG_NUMA_BALANCING
--
2.9.3
--
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next prev parent reply other threads:[~2016-09-26 15:24 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-09-26 15:22 [PATCH v1 00/12] mm: THP migration support zi.yan
2016-09-26 15:22 ` [PATCH v1 01/12] mm: mempolicy: add queue_pages_node_check() zi.yan
2016-09-26 15:22 ` [PATCH v1 02/12] mm: thp: introduce CONFIG_ARCH_ENABLE_HUGEPAGE_MIGRATION zi.yan
2016-09-26 15:22 ` [PATCH v1 03/12] mm: thp: add helpers related to thp/pmd migration zi.yan
2016-09-26 15:22 ` [PATCH v1 04/12] mm: thp: enable thp migration in generic path zi.yan
2016-09-26 15:22 ` [PATCH v1 05/12] mm: thp: check pmd migration entry in common path zi.yan
2016-09-26 15:22 ` [PATCH v1 06/12] mm: soft-dirty: keep soft-dirty bits over thp migration zi.yan
2016-09-26 15:22 ` [PATCH v1 07/12] mm: hwpoison: fix race between unpoisoning and freeing migrate source page zi.yan
2016-09-26 15:22 ` [PATCH v1 08/12] mm: hwpoison: soft offline supports thp migration zi.yan
2016-09-26 15:22 ` [PATCH v1 09/12] mm: mempolicy: mbind and migrate_pages support " zi.yan
2016-09-26 15:22 ` [PATCH v1 10/12] mm: migrate: move_pages() supports " zi.yan
2016-09-26 15:22 ` [PATCH v1 11/12] mm: memory_hotplug: memory hotremove " zi.yan
2016-09-26 15:22 ` zi.yan [this message]
2016-09-30 0:02 ` [PATCH v1 12/12] mm: ppc64: Add THP migration support for ppc64 Balbir Singh
2016-09-30 5:18 ` Aneesh Kumar K.V
2016-09-26 15:38 ` [PATCH v1 00/12] THP migration support Zi Yan
2016-09-29 8:25 ` Naoya Horiguchi
2016-09-30 2:32 ` Zi Yan
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