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powerpc/mm:book3s: Enable THP migration support 

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Aneesh Kumar K.V 2018-09-20 23:39:47 +05:30 committed by Michael Ellerman
parent 8890e03380
commit a0820ff334
2 changed files with 9 additions and 0 deletions
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8
arch/powerpc/include/asm/book3s/64/pgtable.h
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@ -741,6 +741,8 @@ 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))
@ -1091,6 +1093,12 @@ 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
#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)))
#endif
#endif /* CONFIG_HAVE_ARCH_SOFT_DIRTY */
#ifdef CONFIG_NUMA_BALANCING

1
arch/powerpc/platforms/Kconfig.cputype
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@ -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 if TRANSPARENT_HUGEPAGE
select ARCH_SUPPORTS_NUMA_BALANCING
select IRQ_WORK