add pci_upstream_bridge() and pci_pr3_present()

needed for changes to amdgpu_device.c in 5.15.y
for now always return false when checking for ACPI _PR3 method

diff --git a/sys/dev/pci/drm/include/linux/pci.h b/sys/dev/pci/drm/include/linux/pci.h
index 16eaa87..944de95 100644 (file)
--- a/sys/dev/pci/drm/include/linux/pci.h
+++ b/sys/dev/pci/drm/include/linux/pci.h
@@ -1,4 +1,4 @@
-/*     $OpenBSD: pci.h,v 1.10 2022/03/01 04:08:04 jsg Exp $    */
+/*     $OpenBSD: pci.h,v 1.11 2022/04/11 03:02:40 jsg Exp $    */
 /*
  * Copyright (c) 2015 Mark Kettenis
  *
@@ -246,6 +246,21 @@ pci_is_root_bus(struct pci_bus *pbus)
        return (pbus->bridgetag == NULL);
 }
 
+static inline struct pci_dev *
+pci_upstream_bridge(struct pci_dev *pdev)
+{
+       if (pci_is_root_bus(pdev->bus))
+               return NULL;
+       return pdev->bus->self;
+}
+
+/* XXX check for ACPI _PR3 */
+static inline bool
+pci_pr3_present(struct pci_dev *pdev)
+{
+       return false;
+}
+
 static inline int
 pcie_capability_read_dword(struct pci_dev *pdev, int off, u32 *val)
 {