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Diffstat (limited to 'drivers/pci/Kconfig')
| -rw-r--r-- | drivers/pci/Kconfig | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/pci/Kconfig b/drivers/pci/Kconfig index dd1cc65229..af92784950 100644 --- a/drivers/pci/Kconfig +++ b/drivers/pci/Kconfig @@ -179,6 +179,18 @@ config PCIE_LAYERSCAPE_RC configured to Root Complex mode by clearing the corresponding bit of RCW[HOST_AGT_PEX]. +config PCI_IOMMU_EXTRA_MAPPINGS + bool "Support for specifying extra IOMMU mappings for PCI" + depends on PCIE_LAYERSCAPE_RC + help + Enable support for specifying extra IOMMU mappings for PCI + controllers through a special env var called "pci_iommu_extra" or + through a device tree property named "pci-iommu-extra" placed in + the node describing the PCI controller. + The intent is to cover SR-IOV scenarios which need mappings for VFs + and PCI hot-plug scenarios. More documentation can be found under: + arch/arm/cpu/armv8/fsl-layerscape/doc/README.pci_iommu_extra + config PCIE_LAYERSCAPE_EP bool "Layerscape PCIe Endpoint mode support" depends on DM_PCI |