From: Kefeng Wang <wangkefeng.wang@huawei.com>
To: <catalin.marinas@arm.com>, <will@kernel.org>,
<akpm@linux-foundation.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-kernel@vger.kernel.org>
Cc: <linux-mm@kvack.org>, <hch@infradead.org>, <arnd@arndb.de>,
Kefeng Wang <wangkefeng.wang@huawei.com>
Subject: [PATCH v2 0/5] arm64: Cleanup ioremap() and support ioremap_prot()
Date: Fri, 29 Apr 2022 18:32:20 +0800 [thread overview]
Message-ID: <20220429103225.75121-1-wangkefeng.wang@huawei.com> (raw)
1. Enhance generic ioremap to make it more useful.
2. Let's arm64 use GENERIC_IOREMAP to cleanup code.
3. Support HAVE_IOREMAP_PROT on arm64, which enable generic_access_phys(),
it is useful when debug(eg, gdb) via access_process_vm device memory
infrastructure.
v2:
- s/addr/phys_addr in ioremap_prot, suggested by Andrew Morton
- rename arch_ioremap/iounmap_check to arch_ioremap/iounmad
and change return value, per Christoph Hellwig and Andrew Morton
- and use 'ifndef arch_ioremap' instead of weak function, per Arnd Bergmann
- collect ack/review
Kefeng Wang (5):
mm: ioremap: Use more sensibly name in ioremap_prot()
mm: ioremap: Setup phys_addr of struct vm_struct
mm: ioremap: Add arch_ioremap/iounmap()
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 | 20 +++--
arch/arm64/include/asm/pgtable.h | 10 +++
arch/arm64/kernel/acpi.c | 2 +-
arch/arm64/mm/hugetlbpage.c | 10 ---
arch/arm64/mm/ioremap.c | 85 +++----------------
include/asm-generic/io.h | 16 +++-
mm/ioremap.c | 27 ++++--
9 files changed, 74 insertions(+), 100 deletions(-)
--
2.35.3
next reply other threads:[~2022-04-29 10:21 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-04-29 10:32 Kefeng Wang [this message]
2022-04-29 10:32 ` [PATCH v2 1/5] mm: ioremap: Use more sensibly name in ioremap_prot() Kefeng Wang
2022-05-02 9:38 ` Anshuman Khandual
2022-04-29 10:32 ` [PATCH v2 2/5] mm: ioremap: Setup phys_addr of struct vm_struct Kefeng Wang
2022-05-02 9:50 ` Anshuman Khandual
2022-04-29 10:32 ` [PATCH v2 3/5] mm: ioremap: Add arch_ioremap/iounmap() Kefeng Wang
2022-05-19 4:46 ` Anshuman Khandual
2022-05-19 6:24 ` Kefeng Wang
2022-04-29 10:32 ` [PATCH v2 4/5] arm64: mm: Convert to GENERIC_IOREMAP Kefeng Wang
2022-04-29 23:15 ` kernel test robot
2022-05-02 3:27 ` [PATCH v2 resend " Kefeng Wang
2022-05-16 22:47 ` Catalin Marinas
2022-05-19 5:34 ` Anshuman Khandual
2022-05-19 6:31 ` Kefeng Wang
2022-04-29 10:32 ` [PATCH v2 5/5] arm64: Add HAVE_IOREMAP_PROT support Kefeng Wang
2022-05-16 22:48 ` Catalin Marinas
2022-05-19 5:06 ` Anshuman Khandual
2022-05-10 7:06 ` [PATCH v2 0/5] arm64: Cleanup ioremap() and support ioremap_prot() Kefeng Wang
2022-05-16 22:51 ` Catalin Marinas
2022-05-19 3:37 ` Kefeng Wang
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20220429103225.75121-1-wangkefeng.wang@huawei.com \
--to=wangkefeng.wang@huawei.com \
--cc=akpm@linux-foundation.org \
--cc=arnd@arndb.de \
--cc=catalin.marinas@arm.com \
--cc=hch@infradead.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=will@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).