[PATCH 3/6] ARM: OMAP2+: Move plat/iovmm.h to include/linux/omap-iommu.h
From: laurent.pinchart@ideasonboard.com (Laurent Pinchart)
Date: 2012-10-25 20:22:00
Also in:
linux-media, linux-omap
From: laurent.pinchart@ideasonboard.com (Laurent Pinchart)
Date: 2012-10-25 20:22:00
Also in:
linux-media, linux-omap
Hi Tony, On Thursday 25 October 2012 09:56:44 Tony Lindgren wrote:
* Laurent Pinchart [off-list ref] [121025 01:39]:quoted
I still think you should split this in two files, omap-iommu.h and omap- iovmm.h. The later would just be arch/arm/plat-omap/include/plat/iovmm.h moved to include/linux.h.Can you please explain a bit more why you're thinking a separate omap-iovmm.h is needed in addtion to omap-iommu.h?
The IOVMM API is layered top of the IOMMU API. It's really a separate API, so two header files make sense. This patch creates a hybrid omap-iommu.h header with mixed definitions, it just doesn't feel right :-) I won't insist for a split though, if you think it's better to have a single header we can keep it that way.
My reasoning for not adding it is that neither intel nor amd needs more than intel-iommu.h and amd-iommu.h. And hopefully the iommu framework will eventually provide the API needed. And I'd rather not be the person introducing this second new file into include/linux :) Joerg and Ohad, do you have any opinions on this?
-- Regards, Laurent Pinchart