linux-kernel - Re: [PATCH v5 0/6] arm64: Cleanup ioremap() and support ioremap

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Date:   Mon, 27 Jun 2022 14:00:44 +0100
From:   Will Deacon <will@...nel.org>
To:     Kefeng Wang <wangkefeng.wang@...wei.com>,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        akpm@...ux-foundation.org, catalin.marinas@....com
Cc:     kernel-team@...roid.com, Will Deacon <will@...nel.org>,
        hch@...radead.org, arnd@...db.de, linux-mm@...ck.org,
        anshuman.khandual@....com
Subject: Re: [PATCH v5 0/6] arm64: Cleanup ioremap() and support ioremap_prot()

On Tue, 7 Jun 2022 20:50:21 +0800, Kefeng Wang wrote:
> 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.
> 
> v5:
> - break long lines(> 80 cols), per Christoph Hellwig
> - move is_vmalloc_addr() check from arm64 into generic ioremap, per
>   Christoph Hellwig
> - make arm64's ioremap_cache as an inline function, per Christoph
> - keep changes simple, make ioremap/iounmap_allowed return bool, per
>   Baoquan He
> - simplify use 'void *' instead of 'void __iomem *' in iounmap, then
>   drop __force annotation
> 
> [...]

Applied to arm64 (for-next/ioremap), thanks!

[1/6] ARM: mm: kill unused runtime hook arch_iounmap()
      https://git.kernel.org/arm64/c/d803336abdbc
[2/6] mm: ioremap: Use more sensibly name in ioremap_prot()
      https://git.kernel.org/arm64/c/abc5992b9dd0
[3/6] mm: ioremap: Setup phys_addr of struct vm_struct
      https://git.kernel.org/arm64/c/a14fff1c0379
[4/6] mm: ioremap: Add ioremap/iounmap_allowed()
      https://git.kernel.org/arm64/c/18e780b4e6ab
[5/6] arm64: mm: Convert to GENERIC_IOREMAP
      https://git.kernel.org/arm64/c/f23eab0bfaef
[6/6] arm64: Add HAVE_IOREMAP_PROT support
      https://git.kernel.org/arm64/c/893dea9ccd08

Cheers,
-- 
Will

https://fixes.arm64.dev
https://next.arm64.dev
https://will.arm64.dev