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Date:   Fri, 24 Jul 2020 18:27:09 +0200
From:   Christoph Hellwig <hch@lst.de>
To:     Amit Pundir <amit.pundir@linaro.org>
Cc:     Christoph Hellwig <hch@lst.de>,
        Nicolas Saenz Julienne <nsaenzjulienne@suse.de>,
        Marek Szyprowski <m.szyprowski@samsung.com>,
        Robin Murphy <robin.murphy@arm.com>,
        David Rientjes <rientjes@google.com>,
        linux-rpi-kernel@lists.infradead.org, jeremy.linton@arm.com,
        iommu@lists.linux-foundation.org,
        lkml <linux-kernel@vger.kernel.org>,
        John Stultz <john.stultz@linaro.org>,
        Sumit Semwal <sumit.semwal@linaro.org>
Subject: Re: [PATCH] dma-pool: Do not allocate pool memory from CMA
Message-ID: <20200724162709.GA15051@lst.de>
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On Fri, Jul 24, 2020 at 09:49:17PM +0530, Amit Pundir wrote:
> On Fri, 24 Jul 2020 at 19:11, Christoph Hellwig <hch@lst.de> wrote:
> >
> > Yes, the iommu is an interesting case, and the current code is
> > wrong for that.  Can you try the patch below?  It contains a modified
> > version of Nicolas' patch to try CMA again for the expansion and a new
> > (for now hackish) way to not apply the addressability check for dma-iommu
> > allocations.
> 
> Thank you. The below patch worked on today's linux/master (f37e99aca03f).

Ok, I'll try to massage it into a few cleaner patches over the weekend
and will send them to you again for retesting.

Thanks a lot for your patience!