On Tue, 2013-05-21 at 13:33 +1000, Alexey Kardashevskiy wrote:
> The enables VFIO on the pSeries platform, enabling user space
> programs to access PCI devices directly.
>
> Signed-off-by: Alexey Kardashevskiy <a...@ozlabs.ru>
> Cc: David Gibson <da...@gibson.dropbear.id.au>
> Signed-off-by: Paul Mackerras <pau...@samba.org>
Acked-by: Alex Williamson <alex.william...@redhat.com>
> ---
> arch/powerpc/platforms/pseries/iommu.c | 4 ++++
> drivers/iommu/Kconfig | 2 +-
> drivers/vfio/Kconfig | 2 +-
> 3 files changed, 6 insertions(+), 2 deletions(-)
>
> diff --git a/arch/powerpc/platforms/pseries/iommu.c
> b/arch/powerpc/platforms/pseries/iommu.c
> index 86ae364..23fc1dc 100644
> --- a/arch/powerpc/platforms/pseries/iommu.c
> +++ b/arch/powerpc/platforms/pseries/iommu.c
> @@ -614,6 +614,7 @@ static void pci_dma_bus_setup_pSeries(struct pci_bus *bus)
>
> iommu_table_setparms(pci->phb, dn, tbl);
> pci->iommu_table = iommu_init_table(tbl, pci->phb->node);
> + iommu_register_group(tbl, pci_domain_nr(bus), 0);
>
> /* Divide the rest (1.75GB) among the children */
> pci->phb->dma_window_size = 0x80000000ul;
> @@ -658,6 +659,7 @@ static void pci_dma_bus_setup_pSeriesLP(struct pci_bus
> *bus)
> ppci->phb->node);
> iommu_table_setparms_lpar(ppci->phb, pdn, tbl, dma_window);
> ppci->iommu_table = iommu_init_table(tbl, ppci->phb->node);
> + iommu_register_group(tbl, pci_domain_nr(bus), 0);
> pr_debug(" created table: %p\n", ppci->iommu_table);
> }
> }
> @@ -684,6 +686,7 @@ static void pci_dma_dev_setup_pSeries(struct pci_dev *dev)
> phb->node);
> iommu_table_setparms(phb, dn, tbl);
> PCI_DN(dn)->iommu_table = iommu_init_table(tbl, phb->node);
> + iommu_register_group(tbl, pci_domain_nr(phb->bus), 0);
> set_iommu_table_base(&dev->dev, PCI_DN(dn)->iommu_table);
> return;
> }
> @@ -1184,6 +1187,7 @@ static void pci_dma_dev_setup_pSeriesLP(struct pci_dev
> *dev)
> pci->phb->node);
> iommu_table_setparms_lpar(pci->phb, pdn, tbl, dma_window);
> pci->iommu_table = iommu_init_table(tbl, pci->phb->node);
> + iommu_register_group(tbl, pci_domain_nr(pci->phb->bus), 0);
> pr_debug(" created table: %p\n", pci->iommu_table);
> } else {
> pr_debug(" found DMA window, table: %p\n", pci->iommu_table);
> diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig
> index 3f3abde..01730b2 100644
> --- a/drivers/iommu/Kconfig
> +++ b/drivers/iommu/Kconfig
> @@ -263,7 +263,7 @@ config SHMOBILE_IOMMU_L1SIZE
>
> config SPAPR_TCE_IOMMU
> bool "sPAPR TCE IOMMU Support"
> - depends on PPC_POWERNV
> + depends on PPC_POWERNV || PPC_PSERIES
> select IOMMU_API
> help
> Enables bits of IOMMU API required by VFIO. The iommu_ops
> diff --git a/drivers/vfio/Kconfig b/drivers/vfio/Kconfig
> index b464687..26b3d9d 100644
> --- a/drivers/vfio/Kconfig
> +++ b/drivers/vfio/Kconfig
> @@ -12,7 +12,7 @@ menuconfig VFIO
> tristate "VFIO Non-Privileged userspace driver framework"
> depends on IOMMU_API
> select VFIO_IOMMU_TYPE1 if X86
> - select VFIO_IOMMU_SPAPR_TCE if PPC_POWERNV
> + select VFIO_IOMMU_SPAPR_TCE if (PPC_POWERNV || PPC_PSERIES)
> help
> VFIO provides a framework for secure userspace device drivers.
> See Documentation/vfio.txt for more details.
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