Message-ID: <4FB52BE7.8080908@wwwdotorg.org>
Date: Thu, 17 May 2012 10:48:39 -0600
From: Stephen Warren <swarren@wwwdotorg.org>
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To: Hiroshi DOYU <hdoyu@nvidia.com>, Joerg Roedel <joerg.roedel@amd.com>
CC: linux-tegra@vger.kernel.org, Grant Likely <grant.likely@secretlab.ca>,
        Rob Herring <rob.herring@calxeda.com>, Rob Landley <rob@landley.net>,
        Ohad Ben-Cohen <ohad@wizery.com>, Tony Lindgren <tony@atomide.com>,
        Jiri Kosina <jkosina@suse.cz>,
        Thierry Reding <thierry.reding@avionic-design.de>,
        devicetree-discuss@lists.ozlabs.org, linux-doc@vger.kernel.org,
        linux-kernel@vger.kernel.org
Subject: Re: [PATCH 1/2] iommu/tegra: smmu: Add device tree support for SMMU
References: <1336636221-31575-1-git-send-email-hdoyu@nvidia.com> <1336636221-31575-2-git-send-email-hdoyu@nvidia.com> <4FB143C4.6030502@wwwdotorg.org>
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On 05/14/2012 11:41 AM, Stephen Warren wrote:
> On 05/10/2012 01:50 AM, Hiroshi DOYU wrote:
>> The necessary info is expected to pass from DT.
>>
>> For more precise resource reservation, there shouldn't be any
>> overlapping of register range between SMMU and MC. SMMU register
>> offset needs to be calculated correctly, based on its register bank.
>>
>> Signed-off-by: Hiroshi DOYU <hdoyu@nvidia.com>
>> ---
>> This patch requires the following ones, sent earlier:
>>
>> DMA window:
>> http://article.gmane.org/gmane.linux.ports.tegra/4603
> 
> This patch has been merged even though the patch above isn't present in
> the kernel anywhere, let alone in the history of the iommu tree. This
> breaks compilation in linux-next.
> 
>> AHB:
>> http://article.gmane.org/gmane.linux.ports.tegra/4657
> 
> This patch is in linux-next, but also is not in the history of the iommu
> tree, so will break bisection of the iommu tree for Tegra.

Joerg,

Can this patch please be dropped or reverted? It's still breaking
tegra_defconfig in next-20120517 since the dependencies I mentioned
above aren't satisfied. At this stage, it seems unlikely that the DMA
window parsing change is going to make it into 3.5, so this isn't just a
temporary issue.

Thanks.
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