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

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Date:	Mon, 14 May 2012 11:41:24 -0600
From:	Stephen Warren <swarren@...dotorg.org>
To:	Hiroshi DOYU <hdoyu@...dia.com>
CC:	linux-tegra@...r.kernel.org,
	Grant Likely <grant.likely@...retlab.ca>,
	Rob Herring <rob.herring@...xeda.com>,
	Rob Landley <rob@...dley.net>,
	Joerg Roedel <joerg.roedel@....com>,
	Ohad Ben-Cohen <ohad@...ery.com>,
	Tony Lindgren <tony@...mide.com>,
	Jiri Kosina <jkosina@...e.cz>,
	Thierry Reding <thierry.reding@...onic-design.de>,
	devicetree-discuss@...ts.ozlabs.org, linux-doc@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/2] iommu/tegra: smmu: Add device tree support for SMMU

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@...dia.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.
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