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| author | Usama Arif <usama.arif@linux.dev> | 2026-07-06 04:42:08 -0700 |
|---|---|---|
| committer | Andrew Morton <akpm@linux-foundation.org> | 2026-07-22 21:11:50 -0700 |
| commit | b514c0570cb092c121f4d70b9aafac9ea54f6cef (patch) | |
| tree | 565ce99e4af2c57c9c6644cbe72daaec526fbedd /arch/riscv/include | |
| parent | c392b6bec30a27e1483d21c3ebad45291fb19acb (diff) | |
| download | linux-next-b514c0570cb092c121f4d70b9aafac9ea54f6cef.tar.gz linux-next-b514c0570cb092c121f4d70b9aafac9ea54f6cef.zip | |
mm: rename ARCH_ENABLE_THP_MIGRATION to ARCH_HAS_PMD_SOFTLEAVES
CONFIG_ARCH_ENABLE_THP_MIGRATION gates PMD-level migration entries.
PMD-level device-private entries use the same migration mechanism and
therefore require the same architecture support.
Upcoming PMD-level swap entries can use the same PMD softleaf helpers
without depending on page migration, so rename the architecture gate to
CONFIG_ARCH_HAS_PMD_SOFTLEAVES. This describes the PMD entry capability
rather than one current user of it.
This is a pure rename: the set of selecting architectures (x86, arm64,
s390, riscv, loongarch, and powerpc on PPC_BOOK3S_64) and the gating
semantics are unchanged.
No functional change intended.
Link: https://lore.kernel.org/20260706114320.1643046-7-usama.arif@linux.dev
Signed-off-by: Usama Arif <usama.arif@linux.dev>
Reviewed-by: Zi Yan <ziy@nvidia.com>
Acked-by: David Hildenbrand (Arm) <david@kernel.org>
Cc: Alexandre Ghiti <alex@ghiti.fr>
Cc: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: Baoquan He <baoquan.he@linux.dev>
Cc: Barry Song <baohua@kernel.org>
Cc: Chris Li <chrisl@kernel.org>
Cc: Dev Jain <dev.jain@arm.com>
Cc: "Huang, Ying" <ying.huang@linux.alibaba.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Kairui Song <kasong@tencent.com>
Cc: Kemeng Shi <shikemeng@huaweicloud.com>
Cc: Kiryl Shutsemau <kas@kernel.org>
Cc: Lance Yang <lance.yang@linux.dev>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Nhat Pham <nphamcs@gmail.com>
Cc: Nico Pache <npache@redhat.com>
Cc: Rik van Riel <riel@surriel.com>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Cc: Shakeel Butt <shakeel.butt@linux.dev>
Cc: Vlastimil Babka <vbabka@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'arch/riscv/include')
| -rw-r--r-- | arch/riscv/include/asm/pgtable.h | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/riscv/include/asm/pgtable.h b/arch/riscv/include/asm/pgtable.h index 5d5756bda82e..23eae82c26a6 100644 --- a/arch/riscv/include/asm/pgtable.h +++ b/arch/riscv/include/asm/pgtable.h @@ -946,7 +946,7 @@ static inline pmd_t pmd_clear_soft_dirty(pmd_t pmd) return pte_pmd(pte_clear_soft_dirty(pmd_pte(pmd))); } -#ifdef CONFIG_ARCH_ENABLE_THP_MIGRATION +#ifdef CONFIG_ARCH_HAS_PMD_SOFTLEAVES static inline bool pmd_swp_soft_dirty(pmd_t pmd) { return pte_swp_soft_dirty(pmd_pte(pmd)); @@ -961,7 +961,7 @@ static inline pmd_t pmd_swp_clear_soft_dirty(pmd_t pmd) { return pte_pmd(pte_swp_clear_soft_dirty(pmd_pte(pmd))); } -#endif /* CONFIG_ARCH_ENABLE_THP_MIGRATION */ +#endif /* CONFIG_ARCH_HAS_PMD_SOFTLEAVES */ #endif /* CONFIG_HAVE_ARCH_SOFT_DIRTY */ static inline void set_pmd_at(struct mm_struct *mm, unsigned long addr, @@ -1208,10 +1208,10 @@ static inline pte_t pte_swp_clear_exclusive(pte_t pte) return __pte(pte_val(pte) & ~_PAGE_SWP_EXCLUSIVE); } -#ifdef CONFIG_ARCH_ENABLE_THP_MIGRATION +#ifdef CONFIG_ARCH_HAS_PMD_SOFTLEAVES #define __pmd_to_swp_entry(pmd) ((swp_entry_t) { pmd_val(pmd) }) #define __swp_entry_to_pmd(swp) __pmd((swp).val) -#endif /* CONFIG_ARCH_ENABLE_THP_MIGRATION */ +#endif /* CONFIG_ARCH_HAS_PMD_SOFTLEAVES */ /* * In the RV64 Linux scheme, we give the user half of the virtual-address space |