Date: Mon, 30 Sep 2013 11:34:34 +0900
From: Cho KyongHo <pullip.cho@samsung.com>
To: Olof Johansson <olof@lixom.net>
Cc: Sean Paul <seanpaul@chromium.org>,
        Linux ARM Kernel <linux-arm-kernel@lists.infradead.org>,
        Linux IOMMU <iommu@lists.linux-foundation.org>,
        Linux Kernel <linux-kernel@vger.kernel.org>,
        Linux Samsung SOC <linux-samsung-soc@vger.kernel.org>,
        Hyunwoong Kim <khw0178.kim@samsung.com>,
        Joerg Roedel <joro@8bytes.org>, Kukjin Kim <kgene.kim@samsung.com>,
        Prathyush <prathyush.k@samsung.com>,
        Rahul Sharma <rahul.sharma@samsung.com>,
        Subash Patel <supash.ramaswamy@linaro.org>
Subject: Re: [PATCH v6 07/12] ARM: EXYNOS: remove system mmu initialization
 from exynos tree
Message-id: <20130930113434.4890db899def8d5797567aa4@samsung.com>
In-reply-to: <CALiw-2HwQvpHCoJw0JyGn87ZV1vuvqMtPv8i+AcVGQHnAKtEJw@mail.gmail.com>
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 <20130930093500.ffa527f8f5f004e02a9cb187@samsung.com>
 <CAOw6vbKSQ2xTj7__D5F40vRLxU5Yt1NH4zEp4WcRtB1rVK5gQQ@mail.gmail.com>
 <20130930105234.73b5380ec08bf4cc6b2c9677@samsung.com>
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On Sun, 29 Sep 2013 19:03:06 -0700, Olof Johansson wrote:
> Hi,
> 
> 2013/9/29 Cho KyongHo <pullip.cho@samsung.com>:
> 
> > Ah, I remember that this is merged.
> > I agreed to merge this patch because iommu driver need to be completely changed.
> > Whenever I change exynos-iommu driver, synchronizing samsung-next and iommu-next
> > branches is a big challenge.
> > Thus I decided to remove dependencies to samsung-next branch.
> > But I didn't know that the rest of the new driver is not merged soon. :(
> > I am sorry about that.
> >
> > new patch (v10) will be posted soon.
> 
> Will the v10 patch set be incremental based on v6?
> 
The single patch 07/12 is merged to mainline from v6 patches.
v10 patch is more advanced than v6.
Of course, much more is changed.
You can refer the v9 patch what is changed since v6.

> How have you tested v10 on mainline?
> 

I just test if the System MMU is correctly enabled and disabled,
if page table is correctly maintained.
It is done with IOMMU API call from custom driver/device and applications.

The test does not involve working with master IPs such as MFC, FIMC and so on.

> Thanks,
> 
> -Olof
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