linux-kernel - Re: [PATCH V2 1/7] arm/xen: Introduce xen_setup_dma

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Message-ID: <Yna/204BkqV8/vfG@arm.com>
Date:   Sat, 7 May 2022 19:52:11 +0100
From:   Catalin Marinas <catalin.marinas@....com>
To:     Oleksandr Tyshchenko <olekstysh@...il.com>
Cc:     xen-devel@...ts.xenproject.org, linux-kernel@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        Oleksandr Tyshchenko <oleksandr_tyshchenko@...m.com>,
        Stefano Stabellini <sstabellini@...nel.org>,
        Russell King <linux@...linux.org.uk>,
        Will Deacon <will@...nel.org>,
        Boris Ostrovsky <boris.ostrovsky@...cle.com>,
        Juergen Gross <jgross@...e.com>, Julien Grall <julien@....org>,
        "Michael S. Tsirkin" <mst@...hat.com>,
        Christoph Hellwig <hch@...radead.org>
Subject: Re: [PATCH V2 1/7] arm/xen: Introduce xen_setup_dma_ops()

On Sat, May 07, 2022 at 09:19:02PM +0300, Oleksandr Tyshchenko wrote:
> From: Oleksandr Tyshchenko <oleksandr_tyshchenko@...m.com>
> 
> This patch introduces new helper and places it in new header.
> The helper's purpose is to assign any Xen specific DMA ops in
> a single place. For now, we deal with xen-swiotlb DMA ops only.
> The one of the subsequent commits in current series will add
> xen-grant DMA ops case.
> 
> Also re-use the xen_swiotlb_detect() check on Arm32.
> 
> Signed-off-by: Oleksandr Tyshchenko <oleksandr_tyshchenko@...m.com>
> Reviewed-by: Stefano Stabellini <sstabellini@...nel.org>

For arm64:

Acked-by: Catalin Marinas <catalin.marinas@....com>