linux-kernel - Re: [PATCH v5 00/14] Remove DMA map_page/map

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Message-ID: <4a47088d-6542-45f2-917b-c91f7dd1eb1a@samsung.com>
Date: Mon, 20 Oct 2025 18:27:32 +0200
From: Marek Szyprowski <m.szyprowski@...sung.com>
To: Leon Romanovsky <leon@...nel.org>, Robin Murphy <robin.murphy@....com>,
	Russell King <linux@...linux.org.uk>, Juergen Gross <jgross@...e.com>,
	Stefano Stabellini <sstabellini@...nel.org>, Oleksandr Tyshchenko
	<oleksandr_tyshchenko@...m.com>, Richard Henderson
	<richard.henderson@...aro.org>, Matt Turner <mattst88@...il.com>, Thomas
	Bogendoerfer <tsbogend@...ha.franken.de>, "James E.J. Bottomley"
	<James.Bottomley@...senPartnership.com>, Helge Deller <deller@....de>,
	Madhavan Srinivasan <maddy@...ux.ibm.com>, Michael Ellerman
	<mpe@...erman.id.au>, Nicholas Piggin <npiggin@...il.com>, Christophe Leroy
	<christophe.leroy@...roup.eu>, Geoff Levand <geoff@...radead.org>, "David S.
 Miller" <davem@...emloft.net>, Andreas Larsson <andreas@...sler.com>, Thomas
	Gleixner <tglx@...utronix.de>, Ingo Molnar <mingo@...hat.com>, Borislav
	Petkov <bp@...en8.de>, Dave Hansen <dave.hansen@...ux.intel.com>,
	x86@...nel.org, "H. Peter Anvin" <hpa@...or.com>
Cc: iommu@...ts.linux.dev, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, xen-devel@...ts.xenproject.org,
	linux-alpha@...r.kernel.org, linux-mips@...r.kernel.org,
	linux-parisc@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org,
	sparclinux@...r.kernel.org, Magnus Lindholm <linmag7@...il.com>, Jason
	Gunthorpe <jgg@...pe.ca>
Subject: Re: [PATCH v5 00/14] Remove DMA map_page/map_resource and their
 unmap callbacks

Dear All,

On 15.10.2025 11:12, Leon Romanovsky wrote:
> This series is a combination of previous two steps [1, 2] to reduce
> number of accesses to struct page in the code "below" DMA layer.
>
> In this series, the DMA .map_page/.map_resource/.unmap_page/.unmap_resource
> callbacks are converted to newly introduced .map_phys/.unmap_phys interfaces.

I would like to have some acks from respective arch maintainers before 
applying this patchset.

Best regards
-- 
Marek Szyprowski, PhD
Samsung R&D Institute Poland