From: Mike Rapoport <rppt@kernel.org>
To: linux-mm@kvack.org
Cc: Andrew Morton <akpm@linux-foundation.org>,
Anton Ivanov <anton.ivanov@cambridgegreys.com>,
Arnd Bergmann <arnd@arndb.de>,
"David S. Miller" <davem@davemloft.net>,
Geert Uytterhoeven <geert@linux-m68k.org>,
Greentime Hu <green.hu@gmail.com>,
Greg Ungerer <gerg@linux-m68k.org>, Helge Deller <deller@gmx.de>,
"James E.J. Bottomley" <James.Bottomley@HansenPartnership.com>,
Jeff Dike <jdike@addtoit.com>,
"Kirill A. Shutemov" <kirill@shutemov.name>,
Linus Torvalds <torvalds@linux-foundation.org>,
Mark Salter <msalter@redhat.com>,
Matt Turner <mattst88@gmail.com>, Michal Simek <monstr@monstr.eu>,
Peter Rosin <peda@axentia.se>,
Richard Weinberger <richard@nod.at>,
Rolf Eike Beer <eike-kernel@sf-tec.de>,
Russell King <linux@armlinux.org.uk>,
Sam Creasey <sammy@sammy.net>, Vincent Chen <deanbo422@gmail.com>,
Vineet Gupta <Vineet.Gupta1@synopsys.com>,
Mike Rapoport <rppt@kernel.org>,
linux-alpha@vger.kernel.org, linux-arch@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-c6x-dev@linux-c6x.org, linux-kernel@vger.kernel.org,
linux-m68k@lists.linux-m68k.org, linux-parisc@vger.kernel.org,
linux-um@lists.infradead.org, sparclinux@vger.kernel.org,
Mike Rapoport <rppt@linux.ibm.com>
Subject: [PATCH v2 00/13] mm: remove __ARCH_HAS_4LEVEL_HACK
Date: Fri, 1 Nov 2019 10:39:31 +0200 [thread overview]
Message-ID: <1572597584-6390-1-git-send-email-rppt@kernel.org> (raw)
From: Mike Rapoport <rppt@linux.ibm.com>
Hi,
These patches convert several architectures to use page table folding and
remove __ARCH_HAS_4LEVEL_HACK along with include/asm-generic/4level-fixup.h.
For the nommu configurations the folding is already implemented by the
generic code so the only change was to use the appropriate header file.
As for the rest, the changes are mostly about mechanical replacement of
pgd accessors with pud/pmd ones and the addition of higher levels to page
table traversals.
With Vineet's patches from "elide extraneous generated code for folded
p4d/pud/pmd" series [1] there is a small shrink of the kernel size of about
-0.01% for the defconfig build.
The set is boot-tested on UML, qemu-{alpha,sparc} and aranym.
v2 changes:
* m68k: fixed ifdefs around pmd_t defintion to work with nommu
* parisc: added conversion of hugetlb (thanks, Helge!); lexical fixups in
comments and changelog
* collected acks
[1] https://lore.kernel.org/lkml/20191016162400.14796-1-vgupta@synopsys.com
Helge Deller (1):
parisc/hugetlb: use pgtable-nopXd instead of 4level-fixup
Mike Rapoport (12):
alpha: use pgtable-nop4d instead of 4level-fixup
arm: nommu: use pgtable-nopud instead of 4level-fixup
c6x: use pgtable-nopud instead of 4level-fixup
m68k: nommu: use pgtable-nopud instead of 4level-fixup
m68k: mm: use pgtable-nopXd instead of 4level-fixup
microblaze: use pgtable-nopmd instead of 4level-fixup
nds32: use pgtable-nopmd instead of 4level-fixup
parisc: use pgtable-nopXd instead of 4level-fixup
sparc32: use pgtable-nopud instead of 4level-fixup
um: remove unused pxx_offset_proc() and addr_pte() functions
um: add support for folded p4d page tables
mm: remove __ARCH_HAS_4LEVEL_HACK and
include/asm-generic/4level-fixup.h
arch/alpha/include/asm/pgalloc.h | 4 +-
arch/alpha/include/asm/pgtable.h | 24 ++++-----
arch/alpha/mm/init.c | 12 +++--
arch/arm/include/asm/pgtable.h | 2 +-
arch/c6x/include/asm/pgtable.h | 2 +-
arch/m68k/include/asm/mcf_pgalloc.h | 7 ---
arch/m68k/include/asm/mcf_pgtable.h | 28 ++++-------
arch/m68k/include/asm/mmu_context.h | 12 ++++-
arch/m68k/include/asm/motorola_pgalloc.h | 4 +-
arch/m68k/include/asm/motorola_pgtable.h | 32 +++++++-----
arch/m68k/include/asm/page.h | 9 ++--
arch/m68k/include/asm/pgtable_mm.h | 11 +++--
arch/m68k/include/asm/pgtable_no.h | 2 +-
arch/m68k/include/asm/sun3_pgalloc.h | 5 --
arch/m68k/include/asm/sun3_pgtable.h | 18 -------
arch/m68k/kernel/sys_m68k.c | 10 +++-
arch/m68k/mm/init.c | 6 ++-
arch/m68k/mm/kmap.c | 36 ++++++++++----
arch/m68k/mm/mcfmmu.c | 16 +++++-
arch/m68k/mm/motorola.c | 17 ++++---
arch/microblaze/include/asm/page.h | 3 --
arch/microblaze/include/asm/pgalloc.h | 16 ------
arch/microblaze/include/asm/pgtable.h | 32 +-----------
arch/microblaze/kernel/signal.c | 10 ++--
arch/microblaze/mm/init.c | 7 ++-
arch/microblaze/mm/pgtable.c | 13 ++++-
arch/nds32/include/asm/page.h | 3 --
arch/nds32/include/asm/pgalloc.h | 3 --
arch/nds32/include/asm/pgtable.h | 12 +----
arch/nds32/include/asm/tlb.h | 1 -
arch/nds32/kernel/pm.c | 4 +-
arch/nds32/mm/fault.c | 16 ++++--
arch/nds32/mm/init.c | 11 +++--
arch/nds32/mm/mm-nds32.c | 6 ++-
arch/nds32/mm/proc.c | 26 ++++++----
arch/parisc/include/asm/page.h | 30 ++++++-----
arch/parisc/include/asm/pgalloc.h | 41 ++++++---------
arch/parisc/include/asm/pgtable.h | 52 ++++++++++---------
arch/parisc/include/asm/tlb.h | 2 +
arch/parisc/kernel/cache.c | 13 +++--
arch/parisc/kernel/pci-dma.c | 9 +++-
arch/parisc/mm/fixmap.c | 10 ++--
arch/parisc/mm/hugetlbpage.c | 18 ++++---
arch/sparc/include/asm/pgalloc_32.h | 6 +--
arch/sparc/include/asm/pgtable_32.h | 28 +++++------
arch/sparc/mm/fault_32.c | 11 ++++-
arch/sparc/mm/highmem.c | 6 ++-
arch/sparc/mm/io-unit.c | 6 ++-
arch/sparc/mm/iommu.c | 6 ++-
arch/sparc/mm/srmmu.c | 51 ++++++++++++++-----
arch/um/include/asm/pgtable-2level.h | 1 -
arch/um/include/asm/pgtable-3level.h | 1 -
arch/um/include/asm/pgtable.h | 3 ++
arch/um/kernel/mem.c | 25 +++++++++-
arch/um/kernel/skas/mmu.c | 12 ++++-
arch/um/kernel/skas/uaccess.c | 7 ++-
arch/um/kernel/tlb.c | 85 +++++++++++++++++++-------------
arch/um/kernel/trap.c | 4 +-
include/asm-generic/4level-fixup.h | 40 ---------------
include/asm-generic/tlb.h | 2 -
include/linux/mm.h | 10 ++--
mm/memory.c | 8 ---
62 files changed, 493 insertions(+), 414 deletions(-)
delete mode 100644 include/asm-generic/4level-fixup.h
--
2.7.4
next reply other threads:[~2019-11-01 8:40 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-01 8:39 Mike Rapoport [this message]
2019-11-01 8:39 ` [PATCH v2 01/13] alpha: use pgtable-nop4d instead of 4level-fixup Mike Rapoport
2019-11-01 9:11 ` Kirill A. Shutemov
2019-11-01 21:59 ` Mike Rapoport
2019-11-01 8:39 ` [PATCH v2 02/13] arm: nommu: use pgtable-nopud " Mike Rapoport
2019-11-01 8:39 ` [PATCH v2 03/13] c6x: " Mike Rapoport
2019-11-01 8:39 ` [PATCH v2 04/13] m68k: nommu: " Mike Rapoport
2019-11-01 8:39 ` [PATCH v2 05/13] m68k: mm: use pgtable-nopXd " Mike Rapoport
2019-11-01 8:39 ` [PATCH v2 06/13] microblaze: use pgtable-nopmd " Mike Rapoport
2019-11-01 8:39 ` [PATCH v2 07/13] nds32: " Mike Rapoport
2019-11-01 8:39 ` [PATCH v2 08/13] parisc: use pgtable-nopXd " Mike Rapoport
2019-11-01 8:39 ` [PATCH v2 09/13] parisc/hugetlb: " Mike Rapoport
2019-11-01 8:39 ` [PATCH v2 10/13] sparc32: use pgtable-nopud " Mike Rapoport
2019-11-01 8:39 ` [PATCH v2 11/13] um: remove unused pxx_offset_proc() and addr_pte() functions Mike Rapoport
2019-11-01 9:12 ` Richard Weinberger
2019-11-01 8:39 ` [PATCH v2 12/13] um: add support for folded p4d page tables Mike Rapoport
2019-11-01 9:20 ` Richard Weinberger
2019-11-01 8:39 ` [PATCH v2 13/13] mm: remove __ARCH_HAS_4LEVEL_HACK and include/asm-generic/4level-fixup.h Mike Rapoport
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