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(-) -- 2.26.2