Re: [PATCH 1/2] iommu/tegra: smmu: Add device tree support for SMMU

From: Stephen Warren
Date: Thu May 17 2012 - 12:48:41 EST


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@xxxxxxxxxx>
>> ---
>> 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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