-arm-ker...@lists.infradead.org
> > Subject: Re: [RFC][PATCH] devicetree: Add master-id-bits property to the
> > iommu device
> >
> > On Monday 15 September 2014, Varun Sethi wrote:
> > > >
> > > > This seems rather specific to MMU-500. I don't think
..@vger.kernel.org;
> swar...@nvidia.com; will.dea...@arm.com; Yoder Stuart-B08248;
> robh...@kernel.org; iommu@lists.linux-foundation.org;
> thierry.red...@gmail.com; linux-arm-ker...@lists.infradead.org
> Subject: Re: [RFC][PATCH] devicetree: Add master-id-bits property to the
> iommu d
On Monday 15 September 2014, Varun Sethi wrote:
> >
> > This seems rather specific to MMU-500. I don't think that most IOMMUs would
> > use the term 'master ID', 'stream ID' or even the general concept, and you
> > don't expand the acronym 'TBU'. I've seen many IOMMUs and I don't even
> > know wha
a...@arm.com;
> hd...@nvidia.com; swar...@nvidia.com; robh...@kernel.org; linux-arm-
> ker...@lists.infradead.org; Yoder Stuart-B08248
> Subject: Re: [RFC][PATCH] devicetree: Add master-id-bits property to the
> iommu device
>
> On Sunday 14 September 2014, Varun Sethi wrote:
> &
On Sunday 14 September 2014, Varun Sethi wrote:
> "master-id-bits" property added to the IOMMU device node. This property can
> be used by the IOMMU driver to match relevan bits in the master id expressed
> by a DMA master.
>
> This can be used to mask out certain bits that get added to the device
"master-id-bits" property added to the IOMMU device node. This property can
be used by the IOMMU driver to match relevan bits in the master id expressed
by a DMA master.
This can be used to mask out certain bits that get added to the device master id
due to IOMMU topology. For example, in case of
