PCI: Add support for PASID capability

[karo-tx-linux.git] / drivers / pci / Kconfig

diff --git a/drivers/pci/Kconfig b/drivers/pci/Kconfig
index fb1e9707f91e17e454995971a003bd6da0b091cc..cec66064ee4b51a65be8d940b719c2d67760e4bf 100644 (file)
--- a/drivers/pci/Kconfig
+++ b/drivers/pci/Kconfig
@@ -94,6 +94,19 @@ config PCI_PRI
 
          If unsure, say N.
 
+config PCI_PASID
+       bool "PCI PASID support"
+       depends on PCI
+       select PCI_ATS
+       help
+         Process Address Space Identifiers (PASIDs) can be used by PCI devices
+         to access more than one IO address space at the same time. To make
+         use of this feature an IOMMU is required which also supports PASIDs.
+         Select this option if you have such an IOMMU and want to compile the
+         driver for it into your kernel.
+
+         If unsure, say N.
+
 config PCI_IOAPIC
        bool
        depends on PCI