RE: [PATCH 2/6] DMA-API: Introduce dma_(un)map_resource

[William Davis <wdavis@nvidia.com>]

> -----Original Message-----
> From: Bjorn Helgaas [mailto:bhelgaas@google.com]
> Sent: Thursday, May 7, 2015 10:10 AM
> To: William Davis
> Cc: joro@8bytes.org; iommu@lists.linux-foundation.org; linux-
> pci@vger.kernel.org; Terence Ripperda; John Hubbard; jglisse@redhat.com
> Subject: Re: [PATCH 2/6] DMA-API: Introduce dma_(un)map_resource
> 
> On Fri, May 01, 2015 at 01:32:14PM -0500, wdavis@nvidia.com wrote:
> > From: Will Davis <wdavis@nvidia.com>
> >
> > Add functions to DMA-map and -unmap a resource for a given device.
> > This will allow devices to DMA-map a peer device's resource (for
> > example, another device's BAR region on PCI) to enable peer-to-peer
> transactions.
> >
> > Signed-off-by: Will Davis <wdavis@nvidia.com>
> > Reviewed-by: Terence Ripperda <tripperda@nvidia.com>
> > Reviewed-by: John Hubbard <jhubbard@nvidia.com>
> > ---
> >  include/asm-generic/dma-mapping-broken.h |  9 +++++++++
> > include/asm-generic/dma-mapping-common.h | 34
> ++++++++++++++++++++++++++++++++
> >  include/linux/dma-mapping.h              |  7 +++++++
> 
> You should document these new interfaces in Documentation/DMA-API-*
> 

Will do.

Thanks,
Will

--
nvpublic