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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
Cc: Christophe Leroy <christophe.leroy@csgroup.eu>,
	linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org,
	linux-mm@kvack.org
Subject: [PATCH v2 0/9] Convert powerpc to default topdown mmap layout
Date: Thu, 25 Nov 2021 09:23:22 +0100	[thread overview]
Message-ID: <cover.1637828367.git.christophe.leroy@csgroup.eu> (raw)

This series converts powerpc to default topdown mmap layout.

powerpc provides its own arch_get_unmapped_area() only when
slices are needed, which is only for book3s/64. First part of
the series moves slices into book3s/64 specific directories
and cleans up other subarchitectures.

Then a small modification is done to core mm to allow
powerpc to still provide its own arch_randomize_brk()

Last part converts to default topdown mmap layout.

Changes in v2:
- Moved patch 4 before patch 2
- Make generic arch_randomize_brk() __weak
- Added patch 9

Christophe Leroy (9):
  powerpc/mm: Make slice specific to book3s/64
  powerpc/mm: Move vma_mmu_pagesize() and hugetlb_get_unmapped_area() to
    slice.c
  powerpc/mm: Remove CONFIG_PPC_MM_SLICES
  powerpc/mm: Remove asm/slice.h
  powerpc/mm: Call radix__arch_get_unmapped_area() from
    arch_get_unmapped_area()
  mm: Allow arch specific arch_randomize_brk() with
    CONFIG_ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT
  powerpc/mm: Convert to default topdown mmap layout
  powerpc/mm: Properly randomise mmap with slices
  powerpc: Simplify and move arch_randomize_brk()

 arch/powerpc/Kconfig                          |   2 +-
 arch/powerpc/include/asm/book3s/64/hash.h     |   5 +-
 arch/powerpc/include/asm/book3s/64/hugetlb.h  |   4 -
 arch/powerpc/include/asm/book3s/64/mmu-hash.h |   1 +
 arch/powerpc/include/asm/book3s/64/slice.h    |  18 ++
 arch/powerpc/include/asm/hugetlb.h            |   2 +-
 arch/powerpc/include/asm/paca.h               |   5 -
 arch/powerpc/include/asm/page.h               |   1 -
 arch/powerpc/include/asm/processor.h          |   2 -
 arch/powerpc/include/asm/slice.h              |  46 ----
 arch/powerpc/kernel/paca.c                    |   5 -
 arch/powerpc/kernel/process.c                 |  40 ---
 arch/powerpc/mm/Makefile                      |   3 +-
 arch/powerpc/mm/book3s64/Makefile             |   2 +-
 arch/powerpc/mm/book3s64/hash_utils.c         |  32 +--
 arch/powerpc/mm/book3s64/radix_hugetlbpage.c  |  55 -----
 arch/powerpc/mm/{ => book3s64}/slice.c        | 200 ++++++++++++++-
 arch/powerpc/mm/hugetlbpage.c                 |  28 ---
 arch/powerpc/mm/mmap.c                        | 228 ------------------
 arch/powerpc/mm/nohash/mmu_context.c          |   9 -
 arch/powerpc/mm/nohash/tlb.c                  |   4 -
 arch/powerpc/platforms/Kconfig.cputype        |   4 -
 include/linux/sizes.h                         |   2 +
 mm/util.c                                     |   2 +-
 24 files changed, 234 insertions(+), 466 deletions(-)
 delete mode 100644 arch/powerpc/include/asm/slice.h
 rename arch/powerpc/mm/{ => book3s64}/slice.c (80%)
 delete mode 100644 arch/powerpc/mm/mmap.c

-- 
2.33.1


             reply	other threads:[~2021-11-25  8:36 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-11-25  8:23 Christophe Leroy [this message]
2021-11-25  8:23 ` [PATCH v2 1/9] powerpc/mm: Make slice specific to book3s/64 Christophe Leroy
2021-11-25  8:23 ` [PATCH v2 2/9] powerpc/mm: Move vma_mmu_pagesize() and hugetlb_get_unmapped_area() to slice.c Christophe Leroy
2021-11-25  8:23 ` [PATCH v2 3/9] powerpc/mm: Remove CONFIG_PPC_MM_SLICES Christophe Leroy
2021-11-25  8:23 ` [PATCH v2 4/9] powerpc/mm: Remove asm/slice.h Christophe Leroy
2021-11-25  8:23 ` [PATCH v2 5/9] powerpc/mm: Call radix__arch_get_unmapped_area() from arch_get_unmapped_area() Christophe Leroy
2021-11-25  8:23 ` [PATCH v2 6/9] mm: Allow arch specific arch_randomize_brk() with CONFIG_ARCH_WANT_DEFAULT_TOPDOWN_MMAP_LAYOUT Christophe Leroy
2021-11-25  8:23 ` [PATCH v2 7/9] powerpc/mm: Convert to default topdown mmap layout Christophe Leroy
2021-11-25  8:23 ` [PATCH v2 8/9] powerpc/mm: Properly randomise mmap with slices Christophe Leroy
2021-11-25  8:23 ` [PATCH v2 9/9] powerpc: Simplify and move arch_randomize_brk() Christophe Leroy
2021-11-25 10:42   ` Christophe Leroy
2021-11-26  0:36   ` kernel test robot
2021-11-26 19:23   ` kernel test robot

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