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authorAlex Williamson <alex.williamson@redhat.com>2015-05-27 00:11:44 +0300
committerBjorn Helgaas <bhelgaas@google.com>2015-05-30 01:14:17 +0300
commit19bdb6e4ec071bc49a9871b41e6a59a1657ed365 (patch)
treed058b31e972d88e4ba3a340fbad5ca3dc0c14865 /include
parent247de694349c2eeea11b8d8936541f5012a09318 (diff)
downloadlinux-19bdb6e4ec071bc49a9871b41e6a59a1657ed365.tar.xz
PCI: Move pci_ari_enabled() to global header
pci_ari_enabled() is useful outside of drivers/pci, particularly for deriving INTx routing via ACPI _PRT, so move it to the global header. Also convert to bool return. Signed-off-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Reviewed-by: Don Dutile <ddutile@redhat.com> Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'include')
-rw-r--r--include/linux/pci.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 353db8dc4c6e..2925561a8f1e 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -1905,4 +1905,15 @@ static inline bool pci_is_dev_assigned(struct pci_dev *pdev)
{
return (pdev->dev_flags & PCI_DEV_FLAGS_ASSIGNED) == PCI_DEV_FLAGS_ASSIGNED;
}
+
+/**
+ * pci_ari_enabled - query ARI forwarding status
+ * @bus: the PCI bus
+ *
+ * Returns true if ARI forwarding is enabled.
+ */
+static inline bool pci_ari_enabled(struct pci_bus *bus)
+{
+ return bus->self && bus->self->ari_enabled;
+}
#endif /* LINUX_PCI_H */