| Message ID | 1348060632-12997-2-git-send-email-b16395@freescale.com (mailing list archive) |
|---|---|
| State | Superseded |
| Headers | show |
On Sep 19, 2012, at 8:17 AM, <b16395@freescale.com> <b16395@freescale.com> wrote: > From: Varun Sethi <Varun.Sethi@freescale.com> > > 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.Sethi@freescale.com> > --- > arch/powerpc/include/asm/device.h | 4 ++++ > 1 files changed, 4 insertions(+), 0 deletions(-) Not too familiar, but what does the IBM Server IOMMU do for iommu_domain? > > 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; > #ifdef CONFIG_SWIOTLB > dma_addr_t max_direct_dma_addr; > #endif > -- > 1.7.4.1 > > > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/
> -----Original Message----- > From: Kumar Gala [mailto:galak@kernel.crashing.org] > Sent: Wednesday, September 19, 2012 7:20 PM > To: Sethi Varun-B16395 > Cc: iommu@lists.linux-foundation.org; joerg.roedel@amd.com; linux- > kernel@vger.kernel.org; linuxppc-dev@lists.ozlabs.org; Sethi Varun-B16395 > Subject: Re: [RFC][PATCH 1/3] iommu/fsl: Store iommu domain information > pointer in archdata. > > > On Sep 19, 2012, at 8:17 AM, <b16395@freescale.com> > <b16395@freescale.com> wrote: > > > From: Varun Sethi <Varun.Sethi@freescale.com> > > > > 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.Sethi@freescale.com> > > --- > > arch/powerpc/include/asm/device.h | 4 ++++ > > 1 files changed, 4 insertions(+), 0 deletions(-) > > Not too familiar, but what does the IBM Server IOMMU do for iommu_domain? > [Sethi Varun-B16395] I am not sure if the IBM iommu driver implements the iommu API. -Varun
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; #ifdef CONFIG_SWIOTLB dma_addr_t max_direct_dma_addr; #endif