linux-kernel - [PATCH 0/4] arm64: Cleanup ioremap() and support ioremap

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Date:   Wed, 27 Apr 2022 20:14:09 +0800
From:   Kefeng Wang <wangkefeng.wang@...wei.com>
To:     Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>
CC:     <linux-mm@...ck.org>, Kefeng Wang <wangkefeng.wang@...wei.com>
Subject: [PATCH 0/4] arm64: Cleanup ioremap() and support ioremap_prot()

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