[PATCH 0/4] arm64: Cleanup ioremap() and support ioremap_prot()

From: Kefeng Wang
Date: Wed Apr 27 2022 - 08:02:26 EST


Let's arm64 use GENERIC_IOREMAP to cleanup code, and
support ioremap_prot()/HAVE_IOREMAP_PROT, which could
enable generic_access_phys().

Kefeng Wang (4):
mm: ioremap: Setup phys_addr of struct vm_struct
mm: ioremap: Add arch_ioremap/iounmap_check()
arm64: mm: Convert to GENERIC_IOREMAP
arm64: Add HAVE_IOREMAP_PROT support

.../features/vm/ioremap_prot/arch-support.txt | 2 +-
arch/arm64/Kconfig | 2 +
arch/arm64/include/asm/io.h | 14 +--
arch/arm64/include/asm/pgtable.h | 10 +++
arch/arm64/kernel/acpi.c | 2 +-
arch/arm64/mm/hugetlbpage.c | 10 ---
arch/arm64/mm/ioremap.c | 86 +++----------------
include/asm-generic/io.h | 3 +
mm/ioremap.c | 21 ++++-
9 files changed, 56 insertions(+), 94 deletions(-)

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2.26.2