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From: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
To: Tony Lindgren <tony@atomide.com>
Cc: linux-arm-kernel@lists.infradead.org,
	Ohad Ben-Cohen <ohad@wizery.com>,
	Joerg Roedel <joerg.roedel@amd.com>,
	Mauro Carvalho Chehab <mchehab@infradead.org>,
	Omar Ramirez Luna <omar.luna@linaro.org>,
	linux-omap@vger.kernel.org, Ido Yariv <ido@wizery.com>
Subject: Re: [PATCH 5/6] ARM: OMAP2+: Make some definitions local
Date: Thu, 25 Oct 2012 01:26:04 +0200	[thread overview]
Message-ID: <1682925.XTJ8FK6Z8P@avalon> (raw)
In-Reply-To: <20121019161743.GD4730@atomide.com>

Ho Tony,

On Friday 19 October 2012 09:17:43 Tony Lindgren wrote:
> * Laurent Pinchart <laurent.pinchart@ideasonboard.com> [121019 02:45]:
> > On Thursday 18 October 2012 13:28:48 Tony Lindgren wrote:
> > > @@ -117,13 +112,6 @@ static inline struct omap_iommu
> > > *dev_to_omap_iommu(struct device *dev) }
> > > 
> > >  #endif
> > > 
> > > -/* IOMMU errors */
> > > -#define OMAP_IOMMU_ERR_TLB_MISS		(1 << 0)
> > > -#define OMAP_IOMMU_ERR_TRANS_FAULT	(1 << 1)
> > > -#define OMAP_IOMMU_ERR_EMU_MISS		(1 << 2)
> > > -#define OMAP_IOMMU_ERR_TBLWALK_FAULT	(1 << 3)
> > > -#define OMAP_IOMMU_ERR_MULTIHIT_FAULT	(1 << 4)
> > > -
> > 
> > I'll use those in the tidspbridge driver, in patches that I plan to push
> > soon.
> > 
> > I will apply this patch set on top of mine, see what breaks. Would you
> > like me to propose a modified version of this set, or add additional
> > patches in my set ?
> 
> Sure, let's try to expose only the minimal amount of omap iommu things with
> this patch set so we don't break things. Then the iommu development can
> continue on it's own independent of the core omap code except for the
> platform data.

I'll rebase my DSP patches on top of this patch set then, it will be easier.

> But again, if there are nasty layering violations using this code, I would
> just remove those features. Those things tend to just get worse unless they
> are fixed properly to start with.

The long-term goal is to move the tidspbridge driver to the IOMMU API, but 
we'll need a step by step approach.

-- 
Regards,

Laurent Pinchart


  reply	other threads:[~2012-10-24 23:25 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-10-18 20:28 [PATCH v3 0/6] omap iommu changes to remove plat includes Tony Lindgren
2012-10-18 20:28 ` [PATCH 1/6] ARM: OMAP: Merge iommu2.h into iommu.h Tony Lindgren
2012-10-18 20:28 ` [PATCH 2/6] ARM: OMAP2+: Move iopgtable header to drivers/iommu/ Tony Lindgren
2012-10-18 20:28 ` [PATCH 3/6] ARM: OMAP2+: Move plat/iovmm.h to include/linux/omap-iommu.h Tony Lindgren
2012-10-18 20:56   ` Mauro Carvalho Chehab
2012-10-18 22:11     ` Tony Lindgren
2012-10-19  9:40   ` Laurent Pinchart
2012-10-19 16:14     ` Tony Lindgren
2012-10-24 22:34     ` Tony Lindgren
2012-10-24 23:53       ` Laurent Pinchart
2012-10-25  0:25         ` Tony Lindgren
2012-10-18 20:28 ` [PATCH 4/6] ARM: OMAP2+: Move iommu2 to drivers/iommu/omap-iommu2.c Tony Lindgren
2012-10-18 20:28 ` [PATCH 5/6] ARM: OMAP2+: Make some definitions local Tony Lindgren
2012-10-19  9:44   ` Laurent Pinchart
2012-10-19 16:17     ` Tony Lindgren
2012-10-24 23:26       ` Laurent Pinchart [this message]
2012-10-24 23:33         ` Tony Lindgren
2012-10-24 23:37           ` Laurent Pinchart
2012-10-25  0:24             ` Tony Lindgren
2012-10-18 20:28 ` [PATCH 6/6] ARM: OMAP2+: Move iommu/iovmm headers to platform_data Tony Lindgren
  -- strict thread matches above, loose matches on Subject: below --
2012-10-25  0:20 [PATCH v4 0/6] omap iommu changes to remove plat includes Tony Lindgren
2012-10-25  0:21 ` [PATCH 5/6] ARM: OMAP2+: Make some definitions local Tony Lindgren
2012-11-02 19:23 [PATCH v5 0/6] Move rest of omap-iommu to live in drivers/iommu Tony Lindgren
2012-11-02 19:24 ` [PATCH 5/6] ARM: OMAP2+: Make some definitions local Tony Lindgren

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