From: Luiz Capitulino <luizcap@redhat.com>
To: linux-kernel@vger.kernel.org, linux-mm@kvack.org,
david@kernel.org, baolin.wang@linux.alibaba.com, ziy@nvidia.com,
lance.yang@linux.dev
Cc: corbet@lwn.net, tsbogend@alpha.franken.de, maddy@linux.ibm.com,
mpe@ellerman.id.au, agordeev@linux.ibm.com,
gerald.schaefer@linux.ibm.com, hca@linux.ibm.com,
gor@linux.ibm.com, x86@kernel.org, tglx@kernel.org,
mingo@redhat.com, bp@alien8.de, hughd@google.com,
dave.hansen@linux.intel.com, djbw@kernel.org,
vishal.l.verma@intel.com, dave.jiang@intel.com,
akpm@linux-foundation.org, yintirui@huawei.com, dev.jain@arm.com,
usama.arif@linux.dev
Subject: [PATCH v7 10/14] mips: move has_transparent_hugepage() out of THP guard
Date: Mon, 31 Aug 2026 23:12:14 -0400 [thread overview]
Message-ID: <371e2d3a7bcac265ac748ad3c67b74abfa238422.1788232334.git.luizcap@redhat.com> (raw)
In-Reply-To: <cover.1788232334.git.luizcap@redhat.com>
A future commit will introduce a kernel API to allow for checking if the
CPU supports PMD-sized pages. This API will be based on the
has_transparent_hugepage() implementation but will be orthogonal to THP
and therefore must work when CONFIG_TRANSPARENT_HUGEPAGE=n.
Move its definition out of the THP guard.
Signed-off-by: Luiz Capitulino <luizcap@redhat.com>
---
arch/mips/include/asm/pgtable.h | 6 +++---
arch/mips/mm/tlb-r4k.c | 4 ----
2 files changed, 3 insertions(+), 7 deletions(-)
diff --git a/arch/mips/include/asm/pgtable.h b/arch/mips/include/asm/pgtable.h
index fa7b935f947c..b038da872ec6 100644
--- a/arch/mips/include/asm/pgtable.h
+++ b/arch/mips/include/asm/pgtable.h
@@ -615,9 +615,6 @@ unsigned long io_remap_pfn_range_pfn(unsigned long pfn, unsigned long size);
/* We don't have hardware dirty/accessed bits, generic_pmdp_establish is fine.*/
#define pmdp_establish generic_pmdp_establish
-#define has_transparent_hugepage has_transparent_hugepage
-extern int has_transparent_hugepage(void);
-
static inline int pmd_trans_huge(pmd_t pmd)
{
return !!(pmd_val(pmd) & _PAGE_HUGE);
@@ -743,6 +740,9 @@ static inline pmd_t pmdp_huge_get_and_clear(struct mm_struct *mm,
#endif /* CONFIG_TRANSPARENT_HUGEPAGE */
+#define has_transparent_hugepage has_transparent_hugepage
+extern int has_transparent_hugepage(void);
+
#ifdef _PAGE_HUGE
#define pmd_leaf(pmd) ((pmd_val(pmd) & _PAGE_HUGE) != 0)
#define pud_leaf(pud) ((pud_val(pud) & _PAGE_HUGE) != 0)
diff --git a/arch/mips/mm/tlb-r4k.c b/arch/mips/mm/tlb-r4k.c
index 24fe85fa169d..f4e369342a56 100644
--- a/arch/mips/mm/tlb-r4k.c
+++ b/arch/mips/mm/tlb-r4k.c
@@ -432,8 +432,6 @@ void add_wired_entry(unsigned long entrylo0, unsigned long entrylo1,
#endif
}
-#ifdef CONFIG_TRANSPARENT_HUGEPAGE
-
int has_transparent_hugepage(void)
{
static unsigned int mask = -1;
@@ -452,8 +450,6 @@ int has_transparent_hugepage(void)
}
EXPORT_SYMBOL(has_transparent_hugepage);
-#endif /* CONFIG_TRANSPARENT_HUGEPAGE */
-
/*
* Used for loading TLB entries before trap_init() has started, when we
* don't actually want to add a wired entry which remains throughout the
--
2.55.0
next prev parent reply other threads:[~2026-09-01 3:13 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-01 3:12 [PATCH v7 00/14] mm: thp: always enable mTHP support Luiz Capitulino
2026-09-01 3:12 ` [PATCH v7 01/14] docs: tmpfs: remove implementation detail reference Luiz Capitulino
2026-09-01 3:12 ` [PATCH v7 02/14] mm: shmem: shmem_getattr(): set blksize to highest supported THP order Luiz Capitulino
2026-09-01 3:12 ` [PATCH v7 03/14] mm: introduce pgtable_has_pmd_leaves() Luiz Capitulino
2026-09-01 3:12 ` [PATCH v7 04/14] drivers: dax: use pgtable_has_pmd_leaves() Luiz Capitulino
2026-09-01 3:12 ` [PATCH v7 05/14] drivers: nvdimm: " Luiz Capitulino
2026-09-01 3:12 ` [PATCH v7 06/14] mm: debug_vm_pgtable: " Luiz Capitulino
2026-09-01 3:12 ` [PATCH v7 07/14] mm: shmem: allow THP support determination at folio allocation time Luiz Capitulino
2026-09-01 3:12 ` [PATCH v7 08/14] s390: move has_transparent_hugepage() out of THP guard Luiz Capitulino
2026-09-01 3:12 ` [PATCH v7 09/14] powerpc: " Luiz Capitulino
2026-09-01 3:12 ` Luiz Capitulino [this message]
2026-09-01 11:42 ` [PATCH v7 10/14] mips: " Lance Yang
2026-09-01 19:53 ` Luiz Capitulino
2026-09-01 22:25 ` Thomas Bogendoerfer
2026-09-02 15:12 ` Luiz Capitulino
2026-09-01 3:12 ` [PATCH v7 11/14] x86: " Luiz Capitulino
2026-09-01 3:12 ` [PATCH v7 12/14] treewide: introduce arch_has_pmd_leaves() Luiz Capitulino
2026-09-01 3:12 ` [PATCH v7 13/14] mm: replace thp_disabled_by_hw() with pgtable_has_pmd_leaves() Luiz Capitulino
2026-09-01 3:12 ` [PATCH v7 14/14] mm: thp: always enable mTHP support Luiz Capitulino
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