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

From: Will Deacon
Date: Mon Jun 27 2022 - 09:02:27 EST


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