Messages in this thread | | | From | "Guzman Lugo, Fernando" <> | Date | Tue, 24 Aug 2010 14:05:13 -0500 | Subject | RE: [PATCH 8/9] dspbridge: add map support for big buffers |
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> -----Original Message----- > From: Felipe Contreras [mailto:felipe.contreras@gmail.com] > Sent: Tuesday, August 24, 2010 1:55 PM > To: Guzman Lugo, Fernando > Cc: Kanigeri, Hari; linux-omap@vger.kernel.org; > linux-kernel@vger.kernel.org; ohad@wizery.com; > hiroshi.doyu@nokia.com; ameya.palande@nokia.com; > felipe.contreras@nokia.com > Subject: Re: [PATCH 8/9] dspbridge: add map support for big buffers > > On Tue, Aug 24, 2010 at 9:44 PM, Guzman Lugo, Fernando > <fernando.lugo@ti.com> wrote: > >> However, I still have the question about the dependency on iommu; > >> AFAICS the DMM removal doesn't depend on the migration to iommu, > >> which AFAIK has been stalled for some time. > > > > Yeah, DMM removal does not depend on iommu migration. > However, After > > the changes for iommu migration the DMM module is not > Needed anymore, > > so it is better to remove it too. > > Yes, but there are two options: > > a) 1. Migrate to iommu, 2. Remove DMM > > or: > > b) 1. Remove DMM, 2. Migrate to iommu > > I've heard there are some problems regarding DMM, and since > you say you have already done the changes, and since iommu > migration is not yet ready AFAIK, it might make sense to go > for option b). > > Anyway, thanks for the clarification :)
But DMM is used in this momment, it is after the IOMMU migration When DMM is not needed anymore. So we need to go for option a).
Regards, Fernando.
> > -- > Felipe Contreras >
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