Hi Kumar,Ben, I am implementing the Freescale PAMU (IOMMU) driver using the Linux IOMMU API. In this particular patch, I have added a new field to dev_archdata structure to store the dma domain information. This field is updated whenever we attach a device to an iommu domain.
Regards Varun > -----Original Message----- > From: Joerg Roedel [mailto:j...@8bytes.org] > Sent: Wednesday, February 27, 2013 5:01 PM > To: Sethi Varun-B16395 > Cc: io...@lists.linux-foundation.org; linuxppc-dev@lists.ozlabs.org; > linux-ker...@vger.kernel.org; Wood Scott-B07421; Yoder Stuart-B08248 > Subject: Re: [PATCH 1/6 v8] iommu/fsl: Store iommu domain information > pointer in archdata. > > On Mon, Feb 18, 2013 at 06:22:14PM +0530, Varun Sethi wrote: > > Add a new field in the device (powerpc) archdata structure for storing > > iommu domain information pointer. This pointer is stored when the > > device is attached to a particular domain. > > > > > > Signed-off-by: Varun Sethi <varun.se...@freescale.com> > > --- > > - no change. > > arch/powerpc/include/asm/device.h | 4 ++++ > > 1 files changed, 4 insertions(+), 0 deletions(-) > > > > diff --git a/arch/powerpc/include/asm/device.h > > b/arch/powerpc/include/asm/device.h > > index 77e97dd..6dc79fe 100644 > > --- a/arch/powerpc/include/asm/device.h > > +++ b/arch/powerpc/include/asm/device.h > > @@ -28,6 +28,10 @@ struct dev_archdata { > > void *iommu_table_base; > > } dma_data; > > > > + /* IOMMU domain information pointer. This would be set > > + * when this device is attached to an iommu_domain. > > + */ > > + void *iommu_domain; > > Please Cc the PowerPC Maintainers on this, so that they can have a look > at it. This also must be put this into an #ifdef CONFIG_IOMMU_API. > > > Joerg > > _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev
