Re: [PATCH 3/4 v5] iommu/fsl: Add iommu domain attributes required by fsl PAMU driver.
From: Joerg Roedel <joro@8bytes.org>
Date: 2012-12-03 17:27:17
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On Mon, Dec 03, 2012 at 04:57:29PM +0000, Sethi Varun-B16395 wrote:
quoted
-----Original Message----- From: iommu-bounces@lists.linux-foundation.org [mailto:iommu- bounces@lists.linux-foundation.org] On Behalf Of Joerg Roedel Sent: Sunday, December 02, 2012 7:33 PM To: Sethi Varun-B16395 Cc: linux-kernel@vger.kernel.org; iommu@lists.linux-foundation.org; Wood Scott-B07421; linuxppc-dev@lists.ozlabs.org; Tabi Timur-B04825 Subject: Re: [PATCH 3/4 v5] iommu/fsl: Add iommu domain attributes required by fsl PAMU driver. Hmm, we need to work out a good abstraction for this. On Tue, Nov 20, 2012 at 07:24:56PM +0530, Varun Sethi wrote:quoted
Added the following domain attributes required by FSL PAMU driver: 1. Subwindows field added to the iommu domain geometry attribute.Are the Subwindows mapped with full size or do you map only parts of the subwindows?[Sethi Varun-B16395] It's possible to map a part of the subwindow i.e. size of the mapping can be less than the sub window size.
Yes, I know that this is possible. But do you plan to support that or is it sufficient when the whole subwindow is mapped? Joerg