linux-kernel - Re: [PATCH v4 12/14] swiotlb: Add restricted DMA alloc/free support.

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Message-ID: <CALiNf29tSQ1R8zh35neQWuWqDPek+Jr8QzyPQQvTsW2cZBMEUw@mail.gmail.com>
Date:   Fri, 26 Feb 2021 17:35:57 +0800
From:   Claire Chang <tientzu@...omium.org>
To:     Christoph Hellwig <hch@....de>
Cc:     Rob Herring <robh+dt@...nel.org>, mpe@...erman.id.au,
        Joerg Roedel <joro@...tes.org>, Will Deacon <will@...nel.org>,
        Frank Rowand <frowand.list@...il.com>,
        Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>,
        boris.ostrovsky@...cle.com, jgross@...e.com,
        Marek Szyprowski <m.szyprowski@...sung.com>,
        benh@...nel.crashing.org, paulus@...ba.org,
        "list@....net:IOMMU DRIVERS" <iommu@...ts.linux-foundation.org>,
        sstabellini@...nel.org, Robin Murphy <robin.murphy@....com>,
        grant.likely@....com, xypron.glpk@....de,
        Thierry Reding <treding@...dia.com>, mingo@...nel.org,
        bauerman@...ux.ibm.com, peterz@...radead.org,
        Greg KH <gregkh@...uxfoundation.org>,
        Saravana Kannan <saravanak@...gle.com>,
        "Rafael J . Wysocki" <rafael.j.wysocki@...el.com>,
        heikki.krogerus@...ux.intel.com,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Randy Dunlap <rdunlap@...radead.org>,
        Dan Williams <dan.j.williams@...el.com>,
        Bartosz Golaszewski <bgolaszewski@...libre.com>,
        linux-devicetree <devicetree@...r.kernel.org>,
        lkml <linux-kernel@...r.kernel.org>,
        linuxppc-dev@...ts.ozlabs.org, xen-devel@...ts.xenproject.org,
        Nicolas Boichat <drinkcat@...omium.org>,
        Jim Quinlan <james.quinlan@...adcom.com>
Subject: Re: [PATCH v4 12/14] swiotlb: Add restricted DMA alloc/free support.

On Fri, Feb 26, 2021 at 1:17 PM Christoph Hellwig <hch@....de> wrote:
>
> On Fri, Feb 26, 2021 at 12:17:50PM +0800, Claire Chang wrote:
> > Do you think I should fix this and rebase on the latest linux-next
> > now? I wonder if there are more factor and clean up coming and I
> > should wait after that.
>
> Here is my preferred plan:
>
>  1) wait for my series to support the min alignment in swiotlb to
>     land in Linus tree
>  2) I'll resend my series with the further swiotlb cleanup and
>     refactoring, which includes a slightly rebased version of your
>     patch to add the io_tlb_mem structure
>  3) resend your series on top of that as a baseline
>
> This is my current WIP tree for 2:
>
>   http://git.infradead.org/users/hch/misc.git/shortlog/refs/heads/swiotlb-struct

Sounds good to me. Thanks!