From: Nicholas Piggin <npiggin@gmail.com>
To: linux-mm@kvack.org
Cc: linuxppc-dev@lists.ozlabs.org,
linux-arm-kernel@lists.infradead.org,
Nicholas Piggin <npiggin@gmail.com>
Subject: [PATCH 3/4] powerpc/64s/radix: support huge vmap vmalloc
Date: Mon, 10 Jun 2019 14:38:37 +1000 [thread overview]
Message-ID: <20190610043838.27916-3-npiggin@gmail.com> (raw)
In-Reply-To: <20190610043838.27916-1-npiggin@gmail.com>
Applying huge vmap to vmalloc requires vmalloc_to_page to walk huge
pages. Define pud_large and pmd_large to support this.
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
---
arch/powerpc/include/asm/book3s/64/pgtable.h | 24 ++++++++++++--------
1 file changed, 15 insertions(+), 9 deletions(-)
diff --git a/arch/powerpc/include/asm/book3s/64/pgtable.h b/arch/powerpc/include/asm/book3s/64/pgtable.h
index 5faceeefd9f9..8e02077b11fb 100644
--- a/arch/powerpc/include/asm/book3s/64/pgtable.h
+++ b/arch/powerpc/include/asm/book3s/64/pgtable.h
@@ -923,6 +923,11 @@ static inline int pud_present(pud_t pud)
return !!(pud_raw(pud) & cpu_to_be64(_PAGE_PRESENT));
}
+static inline int pud_large(pud_t pud)
+{
+ return !!(pud_raw(pud) & cpu_to_be64(_PAGE_PTE));
+}
+
extern struct page *pud_page(pud_t pud);
extern struct page *pmd_page(pmd_t pmd);
static inline pte_t pud_pte(pud_t pud)
@@ -966,6 +971,11 @@ static inline int pgd_present(pgd_t pgd)
return !!(pgd_raw(pgd) & cpu_to_be64(_PAGE_PRESENT));
}
+static inline int pgd_large(pgd_t pgd)
+{
+ return !!(pgd_raw(pgd) & cpu_to_be64(_PAGE_PTE));
+}
+
static inline pte_t pgd_pte(pgd_t pgd)
{
return __pte_raw(pgd_raw(pgd));
@@ -1091,6 +1101,11 @@ static inline pte_t *pmdp_ptep(pmd_t *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)))
+static inline int pmd_large(pmd_t pmd)
+{
+ return !!(pmd_raw(pmd) & cpu_to_be64(_PAGE_PTE));
+}
+
#ifdef CONFIG_HAVE_ARCH_SOFT_DIRTY
#define pmd_soft_dirty(pmd) pte_soft_dirty(pmd_pte(pmd))
#define pmd_mksoft_dirty(pmd) pte_pmd(pte_mksoft_dirty(pmd_pte(pmd)))
@@ -1159,15 +1174,6 @@ pmd_hugepage_update(struct mm_struct *mm, unsigned long addr, pmd_t *pmdp,
return hash__pmd_hugepage_update(mm, addr, pmdp, clr, set);
}
-/*
- * returns true for pmd migration entries, THP, devmap, hugetlb
- * But compile time dependent on THP config
- */
-static inline int pmd_large(pmd_t pmd)
-{
- return !!(pmd_raw(pmd) & cpu_to_be64(_PAGE_PTE));
-}
-
static inline pmd_t pmd_mknotpresent(pmd_t pmd)
{
return __pmd(pmd_val(pmd) & ~_PAGE_PRESENT);
--
2.20.1
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next prev parent reply other threads:[~2019-06-10 4:41 UTC|newest]
Thread overview: 24+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-10 4:38 [PATCH 1/4] mm: Move ioremap page table mapping function to mm/ Nicholas Piggin
2019-06-10 4:38 ` [PATCH 2/4] arm64: support huge vmap vmalloc Nicholas Piggin
2019-06-10 5:47 ` Anshuman Khandual
2019-06-10 6:14 ` Nicholas Piggin
2019-06-10 4:38 ` Nicholas Piggin [this message]
2019-06-10 4:38 ` [PATCH 4/4] mm/vmalloc: Hugepage vmalloc mappings Nicholas Piggin
2019-06-10 5:49 ` Nicholas Piggin
2019-06-10 8:08 ` Satheesh Rajendran
2019-06-10 8:53 ` Anshuman Khandual
2019-06-11 0:16 ` Nicholas Piggin
2019-06-11 6:59 ` Anshuman Khandual
2019-06-19 3:29 ` Nicholas Piggin
2019-06-10 14:10 ` Mark Rutland
2019-06-10 14:44 ` Nicholas Piggin
2019-06-11 6:17 ` Anshuman Khandual
2019-06-19 3:33 ` Nicholas Piggin
2019-06-11 5:39 ` Christophe Leroy
2019-06-19 3:39 ` Nicholas Piggin
2019-06-10 5:42 ` [PATCH 1/4] mm: Move ioremap page table mapping function to mm/ Anshuman Khandual
2019-06-10 6:21 ` Nicholas Piggin
2019-06-11 5:24 ` Christophe Leroy
2019-06-19 3:43 ` Nicholas Piggin
2019-06-19 13:18 ` Christophe Leroy
2019-06-22 9:42 ` Nicholas Piggin
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