[PATCH v3 0/4] Devmap cleanups + arm64 support

From: Robin Murphy
Date: Thu May 23 2019 - 11:06:14 EST


Hi all,

Here's a refresh of my devmap stuff, now including the end goal as
well. Patches #1 to #3 are just a rebase of v2, and I hope are ready to
be picked up in the mm tree (#1 is currently doing double-duty in Dan's
subsection series as well). Patch #4 could either go via mm if Will and
Catalin agree, or could go via arm64 with a small tweak to let it build
(but otherwise do nothing) until it meets up with #3 again.

Robin.


Robin Murphy (4):
mm/memremap: Rename and consolidate SECTION_SIZE
mm: clean up is_device_*_page() definitions
mm: introduce ARCH_HAS_PTE_DEVMAP
arm64: mm: Implement pte_devmap support

arch/arm64/Kconfig | 1 +
arch/arm64/include/asm/pgtable-prot.h | 1 +
arch/arm64/include/asm/pgtable.h | 19 ++++++++
arch/powerpc/Kconfig | 2 +-
arch/powerpc/include/asm/book3s/64/pgtable.h | 1 -
arch/x86/Kconfig | 2 +-
arch/x86/include/asm/pgtable.h | 4 +-
arch/x86/include/asm/pgtable_types.h | 1 -
include/linux/mm.h | 47 +++++++-------------
include/linux/mmzone.h | 1 +
include/linux/pfn_t.h | 4 +-
kernel/memremap.c | 10 ++---
mm/Kconfig | 5 +--
mm/gup.c | 2 +-
mm/hmm.c | 2 -
15 files changed, 50 insertions(+), 52 deletions(-)

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2.21.0.dirty