From: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>
To: npiggin@gmail.com, benh@kernel.crashing.org, paulus@samba.org,
mpe@ellerman.id.au
Cc: linuxppc-dev@lists.ozlabs.org,
"Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>
Subject: [RFC PATCH 4/4] powerpc/mm:book3s: Enable THP migration support
Date: Fri, 20 Jul 2018 14:39:14 +0530 [thread overview]
Message-ID: <20180720090914.17471-4-aneesh.kumar@linux.ibm.com> (raw)
In-Reply-To: <20180720090914.17471-1-aneesh.kumar@linux.ibm.com>
---
arch/powerpc/include/asm/book3s/64/pgtable.h | 5 +++++
arch/powerpc/platforms/Kconfig.cputype | 1 +
2 files changed, 6 insertions(+)
diff --git a/arch/powerpc/include/asm/book3s/64/pgtable.h b/arch/powerpc/include/asm/book3s/64/pgtable.h
index fce9ce8781a0..f619f3215c05 100644
--- a/arch/powerpc/include/asm/book3s/64/pgtable.h
+++ b/arch/powerpc/include/asm/book3s/64/pgtable.h
@@ -734,6 +734,8 @@ static inline bool pte_user(pte_t pte)
*/
#define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val((pte)) & ~_PAGE_PTE })
#define __swp_entry_to_pte(x) __pte((x).val | _PAGE_PTE)
+#define __pmd_to_swp_entry(pmd) (__pte_to_swp_entry(pmd_pte(pmd)))
+#define __swp_entry_to_pmd(x) (pte_pmd(__swp_entry_to_pte(x)))
#ifdef CONFIG_MEM_SOFT_DIRTY
#define _PAGE_SWP_SOFT_DIRTY (1UL << (SWP_TYPE_BITS + _PAGE_BIT_SWAP_TYPE))
@@ -1079,6 +1081,9 @@ static inline pte_t *pmdp_ptep(pmd_t *pmd)
#define pmd_mkwrite(pmd) pte_pmd(pte_mkwrite(pmd_pte(pmd)))
#define pmd_mk_savedwrite(pmd) pte_pmd(pte_mk_savedwrite(pmd_pte(pmd)))
#define pmd_clear_savedwrite(pmd) pte_pmd(pte_clear_savedwrite(pmd_pte(pmd)))
+#define pmd_swp_mksoft_dirty(pmd) pte_pmd(pte_swp_mksoft_dirty(pmd_pte(pmd)))
+#define pmd_swp_soft_dirty(pmd) pte_swp_soft_dirty(pmd_pte(pmd))
+#define pmd_swp_clear_soft_dirty(pmd) pte_pmd(pte_swp_clear_soft_dirty(pmd_pte(pmd)))
#ifdef CONFIG_HAVE_ARCH_SOFT_DIRTY
#define pmd_soft_dirty(pmd) pte_soft_dirty(pmd_pte(pmd))
diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype
index e6a1de521319..2e8ee6a33587 100644
--- a/arch/powerpc/platforms/Kconfig.cputype
+++ b/arch/powerpc/platforms/Kconfig.cputype
@@ -72,6 +72,7 @@ config PPC_BOOK3S_64
select PPC_HAVE_PMU_SUPPORT
select SYS_SUPPORTS_HUGETLBFS
select HAVE_ARCH_TRANSPARENT_HUGEPAGE
+ select ARCH_ENABLE_THP_MIGRATION
select ARCH_SUPPORTS_NUMA_BALANCING
select IRQ_WORK
select HAVE_KERNEL_XZ
--
2.17.1
prev parent reply other threads:[~2018-07-20 9:09 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-07-20 9:09 [RFC PATCH 1/4] powerpc/mm/book3s: Update pmd_present to look at _PAGE_PRESENT bit Aneesh Kumar K.V
2018-07-20 9:09 ` [RFC PATCH 2/4] powerpc/mm/hugetlb/book3s: add _PAGE_PRESENT to hugepd pointer Aneesh Kumar K.V
2018-07-20 9:09 ` [RFC PATCH 3/4] powerpc/mm/book3s: Check for pmd_large instead of pmd_trans_huge in set_pmd_at Aneesh Kumar K.V
2018-07-20 9:09 ` Aneesh Kumar K.V [this message]
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