From: Christophe Leroy <christophe.leroy@csgroup.eu>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>,
Paul Mackerras <paulus@samba.org>,
Michael Ellerman <mpe@ellerman.id.au>,
"alex@ghiti.fr" <alex@ghiti.fr>
Cc: "linux-mm@kvack.org" <linux-mm@kvack.org>,
"akpm@linux-foundation.org" <akpm@linux-foundation.org>,
"linuxppc-dev@lists.ozlabs.org" <linuxppc-dev@lists.ozlabs.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: [PATCH v4 03/10] powerpc/mm: Move vma_mmu_pagesize()
Date: Wed, 8 Dec 2021 17:18:18 +0000 [thread overview]
Message-ID: <372d1488c35dca1c5af04f95d9b8548ea07ea603.1638976229.git.christophe.leroy@csgroup.eu> (raw)
In-Reply-To: <cover.1638976228.git.christophe.leroy@csgroup.eu>
vma_mmu_pagesize() is only required for slices,
otherwise there is a generic weak version doing the
exact same thing.
Move it to slice.c
Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
---
arch/powerpc/mm/hugetlbpage.c | 11 -----------
arch/powerpc/mm/slice.c | 9 +++++++++
2 files changed, 9 insertions(+), 11 deletions(-)
diff --git a/arch/powerpc/mm/hugetlbpage.c b/arch/powerpc/mm/hugetlbpage.c
index ddead41e2194..0eec3b61bd13 100644
--- a/arch/powerpc/mm/hugetlbpage.c
+++ b/arch/powerpc/mm/hugetlbpage.c
@@ -565,17 +565,6 @@ unsigned long hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
}
#endif
-unsigned long vma_mmu_pagesize(struct vm_area_struct *vma)
-{
- /* With radix we don't use slice, so derive it from vma*/
- if (IS_ENABLED(CONFIG_PPC_MM_SLICES) && !radix_enabled()) {
- unsigned int psize = get_slice_psize(vma->vm_mm, vma->vm_start);
-
- return 1UL << mmu_psize_to_shift(psize);
- }
- return vma_kernel_pagesize(vma);
-}
-
bool __init arch_hugetlb_valid_size(unsigned long size)
{
int shift = __ffs(size);
diff --git a/arch/powerpc/mm/slice.c b/arch/powerpc/mm/slice.c
index f42711f865f3..8a3ac062b71e 100644
--- a/arch/powerpc/mm/slice.c
+++ b/arch/powerpc/mm/slice.c
@@ -759,4 +759,13 @@ int slice_is_hugepage_only_range(struct mm_struct *mm, unsigned long addr,
return !slice_check_range_fits(mm, maskp, addr, len);
}
+
+unsigned long vma_mmu_pagesize(struct vm_area_struct *vma)
+{
+ /* With radix we don't use slice, so derive it from vma*/
+ if (radix_enabled())
+ return vma_kernel_pagesize(vma);
+
+ return 1UL << mmu_psize_to_shift(get_slice_psize(vma->vm_mm, vma->vm_start));
+}
#endif
--
2.33.1
next prev parent reply other threads:[~2021-12-08 17:20 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-08 17:18 [PATCH v4 00/10] Convert powerpc to default topdown mmap layout Christophe Leroy
2021-12-08 17:18 ` [PATCH v4 01/10] mm: Allow arch specific arch_randomize_brk() with CONFIG_ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT Christophe Leroy
2021-12-08 17:18 ` [PATCH v4 02/10] mm, hugetlbfs: Allow an arch to always use generic versions of get_unmapped_area functions Christophe Leroy
2021-12-09 9:40 ` Nicholas Piggin
2021-12-08 17:18 ` Christophe Leroy [this message]
2021-12-09 9:36 ` [PATCH v4 03/10] powerpc/mm: Move vma_mmu_pagesize() Nicholas Piggin
2021-12-08 17:18 ` [PATCH v4 05/10] powerpc/mm: Remove CONFIG_PPC_MM_SLICES Christophe Leroy
2021-12-08 17:18 ` [PATCH v4 04/10] powerpc/mm: Make slice specific to book3s/64 Christophe Leroy
2021-12-08 17:18 ` [PATCH v4 06/10] powerpc/mm: Use generic_get_unmapped_area() and call it from arch_get_unmapped_area() Christophe Leroy
2021-12-09 9:50 ` Nicholas Piggin
2021-12-10 17:47 ` Christophe Leroy
2021-12-16 14:25 ` Christophe Leroy
2021-12-13 13:02 ` Michael Ellerman
2021-12-08 17:18 ` [PATCH v4 08/10] powerpc/mm: Move get_unmapped_area functions to slice.c Christophe Leroy
2021-12-08 17:18 ` [PATCH v4 07/10] powerpc/mm: Use generic_hugetlb_get_unmapped_area() Christophe Leroy
2021-12-09 10:02 ` Nicholas Piggin
2021-12-16 17:13 ` Christophe Leroy
2021-12-16 18:55 ` Catalin Marinas
2021-12-08 17:18 ` [PATCH v4 09/10] powerpc/mm: Convert to default topdown mmap layout Christophe Leroy
2021-12-09 10:15 ` Nicholas Piggin
2021-12-09 10:22 ` Christophe Leroy
2021-12-09 10:43 ` Nicholas Piggin
2021-12-09 11:22 ` Michael Ellerman
2021-12-09 11:32 ` Christophe Leroy
2021-12-09 23:56 ` Michael Ellerman
2021-12-16 14:27 ` Christophe Leroy
2021-12-08 17:18 ` [PATCH v4 10/10] powerpc/mm: Properly randomise mmap with slices Christophe Leroy
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