diff options
Diffstat (limited to 'drivers/pci/controller/vmd.c')
| -rw-r--r-- | drivers/pci/controller/vmd.c | 22 |
1 files changed, 14 insertions, 8 deletions
diff --git a/drivers/pci/controller/vmd.c b/drivers/pci/controller/vmd.c index 3890812cdf87..999a5509e57e 100644 --- a/drivers/pci/controller/vmd.c +++ b/drivers/pci/controller/vmd.c @@ -95,10 +95,8 @@ struct vmd_dev { struct irq_domain *irq_domain; struct pci_bus *bus; -#ifdef CONFIG_X86_DEV_DMA_OPS struct dma_map_ops dma_ops; struct dma_domain dma_domain; -#endif }; static inline struct vmd_dev *vmd_from_bus(struct pci_bus *bus) @@ -293,7 +291,6 @@ static struct msi_domain_info vmd_msi_domain_info = { .chip = &vmd_msi_controller, }; -#ifdef CONFIG_X86_DEV_DMA_OPS /* * VMD replaces the requester ID with its own. DMA mappings for devices in a * VMD domain need to be mapped for the VMD, not the device requiring @@ -438,10 +435,6 @@ static void vmd_setup_dma_ops(struct vmd_dev *vmd) add_dma_domain(domain); } #undef ASSIGN_VMD_DMA_OPS -#else -static void vmd_teardown_dma_ops(struct vmd_dev *vmd) {} -static void vmd_setup_dma_ops(struct vmd_dev *vmd) {} -#endif static char __iomem *vmd_cfg_addr(struct vmd_dev *vmd, struct pci_bus *bus, unsigned int devfn, int reg, int len) @@ -571,6 +564,7 @@ static int vmd_enable_domain(struct vmd_dev *vmd, unsigned long features) LIST_HEAD(resources); resource_size_t offset[2] = {0}; resource_size_t membar2_offset = 0x2000, busn_start = 0; + struct pci_bus *child; /* * Shadow registers may exist in certain VMD device ids which allow @@ -698,7 +692,19 @@ static int vmd_enable_domain(struct vmd_dev *vmd, unsigned long features) vmd_attach_resources(vmd); vmd_setup_dma_ops(vmd); dev_set_msi_domain(&vmd->bus->dev, vmd->irq_domain); - pci_rescan_bus(vmd->bus); + + pci_scan_child_bus(vmd->bus); + pci_assign_unassigned_bus_resources(vmd->bus); + + /* + * VMD root buses are virtual and don't return true on pci_is_pcie() + * and will fail pcie_bus_configure_settings() early. It can instead be + * run on each of the real root ports. + */ + list_for_each_entry(child, &vmd->bus->children, node) + pcie_bus_configure_settings(child); + + pci_bus_add_devices(vmd->bus); WARN(sysfs_create_link(&vmd->dev->dev.kobj, &vmd->bus->dev.kobj, "domain"), "Can't create symlink to domain\n"); |