diff options
Diffstat (limited to 'arch/powerpc/platforms')
| -rw-r--r-- | arch/powerpc/platforms/powernv/pci-ioda.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c index 9447ee9b4aa3..1da45aa76a03 100644 --- a/arch/powerpc/platforms/powernv/pci-ioda.c +++ b/arch/powerpc/platforms/powernv/pci-ioda.c @@ -1749,6 +1749,46 @@ static void pnv_pci_init_ioda_msis(struct pnv_phb *phb) static void pnv_pci_init_ioda_msis(struct pnv_phb *phb) { } #endif /* CONFIG_PCI_MSI */ +#ifdef CONFIG_PCI_IOV +static void pnv_pci_ioda_fixup_iov_resources(struct pci_dev *pdev) +{ + struct pci_controller *hose; + struct pnv_phb *phb; + struct resource *res; + int i; + resource_size_t size; + struct pci_dn *pdn; + + if (!pdev->is_physfn || pdev->is_added) + return; + + hose = pci_bus_to_host(pdev->bus); + phb = hose->private_data; + + pdn = pci_get_pdn(pdev); + pdn->vfs_expanded = 0; + + for (i = 0; i < PCI_SRIOV_NUM_BARS; i++) { + res = &pdev->resource[i + PCI_IOV_RESOURCES]; + if (!res->flags || res->parent) + continue; + if (!pnv_pci_is_mem_pref_64(res->flags)) { + dev_warn(&pdev->dev, "Skipping expanding VF BAR%d: %pR\n", + i, res); + continue; + } + + dev_dbg(&pdev->dev, " Fixing VF BAR%d: %pR to\n", i, res); + size = pci_iov_resource_size(pdev, i + PCI_IOV_RESOURCES); + res->end = res->start + size * phb->ioda.total_pe - 1; + dev_dbg(&pdev->dev, " %pR\n", res); + dev_info(&pdev->dev, "VF BAR%d: %pR (expanded to %d VFs for PE alignment)", + i, res, phb->ioda.total_pe); + } + pdn->vfs_expanded = phb->ioda.total_pe; +} +#endif /* CONFIG_PCI_IOV */ + /* * This function is supposed to be called on basis of PE from top * to bottom style. So the the I/O or MMIO segment assigned to @@ -2122,6 +2162,9 @@ static void __init pnv_pci_init_ioda_phb(struct device_node *np, ppc_md.pcibios_enable_device_hook = pnv_pci_enable_device_hook; ppc_md.pcibios_window_alignment = pnv_pci_window_alignment; ppc_md.pcibios_reset_secondary_bus = pnv_pci_reset_secondary_bus; +#ifdef CONFIG_PCI_IOV + ppc_md.pcibios_fixup_sriov = pnv_pci_ioda_fixup_iov_resources; +#endif /* CONFIG_PCI_IOV */ pci_add_flags(PCI_REASSIGN_ALL_RSRC); /* Reset IODA tables to a clean state */ |