linux-kernel - Re: [PATCH v7 04/15] swiotlb: Add restricted DMA pool initialization

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Message-ID: <20210527132711.GC26160@lst.de>
Date:   Thu, 27 May 2021 15:27:11 +0200
From:   Christoph Hellwig <hch@....de>
To:     Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
Cc:     Claire Chang <tientzu@...omium.org>,
        Rob Herring <robh+dt@...nel.org>, mpe@...erman.id.au,
        Joerg Roedel <joro@...tes.org>, Will Deacon <will@...nel.org>,
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        Christoph Hellwig <hch@....de>,
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        "list@....net:IOMMU DRIVERS" <iommu@...ts.linux-foundation.org>,
        sstabellini@...nel.org, Robin Murphy <robin.murphy@....com>,
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Subject: Re: [PATCH v7 04/15] swiotlb: Add restricted DMA pool
 initialization

On Mon, May 24, 2021 at 11:49:34AM -0400, Konrad Rzeszutek Wilk wrote:
> rmem_swiotlb_setup
> 
> ?
> 
> Which is ARM specific and inside the generic code?

I don't think it is arm specific at all.  It is OF specific, but just
about every platform but x86 uses OF.  And I can think of an ACPI version
of this as well.