linux-kernel - Re: [PATCH v4 12/20] iommu/tegra: gart: Integrate with Memory Controller driver

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Message-ID: <b2d283fc-ff52-3166-cd70-42f9cba93948@gmail.com>
Date:   Mon, 24 Sep 2018 21:22:59 +0300
From:   Dmitry Osipenko <digetx@...il.com>
To:     Thierry Reding <thierry.reding@...il.com>,
        Joerg Roedel <joro@...tes.org>
Cc:     Jonathan Hunter <jonathanh@...dia.com>,
        Rob Herring <robh+dt@...nel.org>,
        Robin Murphy <robin.murphy@....com>,
        iommu@...ts.linux-foundation.org, devicetree@...r.kernel.org,
        linux-tegra@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 12/20] iommu/tegra: gart: Integrate with Memory
 Controller driver

On 9/24/18 1:23 PM, Thierry Reding wrote:
> On Mon, Sep 24, 2018 at 03:41:45AM +0300, Dmitry Osipenko wrote:
>> The device-tree binding has been changed. There is no separate GART device
>> anymore, it is squashed into the Memory Controller. Integrate GART module
>> with the MC in a way it is done for the SMMU of Tegra30+.
>>
>> Signed-off-by: Dmitry Osipenko <digetx@...il.com>
>> ---
>>  drivers/iommu/Kconfig      |  1 +
>>  drivers/iommu/tegra-gart.c | 98 ++++++++++----------------------------
>>  drivers/memory/tegra/mc.c  | 41 ++++++++++++++++
>>  include/soc/tegra/mc.h     | 27 +++++++++++
>>  4 files changed, 93 insertions(+), 74 deletions(-)
> 
> I think this could technically have been two patches, but since they'd
> have a compile-time dependency either way they need to be applied in the
> correct order, so some coordination between IOMMU and Tegra trees is
> going to have to happen anyway and might as well just stick this into a
> single patch.

I assume that Joerg will take the whole series once it's ready (no?),
hence your ACK will be needed here and in other patches.