linux-kernel - Re: Device address specific mapping of arm,mmu-500

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Message-ID: <41f12daa-b46c-83f1-9c9f-51de1cadf14f@broadcom.com>
Date:   Tue, 6 Jun 2017 23:20:03 -0700
From:   Ray Jui <ray.jui@...adcom.com>
To:     Robin Murphy <robin.murphy@....com>,
        Will Deacon <will.deacon@....com>
Cc:     Marc Zyngier <marc.zyngier@....com>,
        Mark Rutland <mark.rutland@....com>,
        Joerg Roedel <joro@...tes.org>,
        linux-arm-kernel@...ts.infradead.org,
        iommu@...ts.linux-foundation.org,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: Device address specific mapping of arm,mmu-500

Hi Robin,


On 6/6/2017 3:02 AM, Robin Murphy wrote:
> I've currently got some experimental patches pushed out here:
>
>      git://linux-arm.org/linux-rm  iommu/pgtable
>
> So far, there's still one silly bug (which doesn't affect DMA ops usage)
> and an awkward race for non-coherent table walks which will need
> resolving before I have anything to post properly, which I hope will be
> within the next couple of weeks. In the meantime, though, it already
> seems to work well enough in practice, so any feedback is welcome!
>
> Robin.
Excellent! I'm going to find time to test it out (likely next week). 
I'll report back the test result after that.

Thanks,

Ray