[src/trunk]: src/sys/dev/acpi Assign device handles to "at acpi" and "at pci"...

[thorpej <thorpej%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/051bfe6e3114
branches:  trunk
changeset: 951532:051bfe6e3114
user:      thorpej <thorpej%NetBSD.org@localhost>
date:      Fri Feb 05 17:13:40 2021 +0000

description:
Assign device handles to "at acpi" and "at pci" devices in
acpi_device_register().

diffstat:

 sys/dev/acpi/acpi.c |  41 +++++++++++++++++++++++++++++++++++++----
 1 files changed, 37 insertions(+), 4 deletions(-)

diffs (63 lines):

diff -r cd0dc144d960 -r 051bfe6e3114 sys/dev/acpi/acpi.c
--- a/sys/dev/acpi/acpi.c       Fri Feb 05 17:12:43 2021 +0000
+++ b/sys/dev/acpi/acpi.c       Fri Feb 05 17:13:40 2021 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: acpi.c,v 1.289 2021/02/04 21:39:00 thorpej Exp $       */
+/*     $NetBSD: acpi.c,v 1.290 2021/02/05 17:13:40 thorpej Exp $       */
 
 /*-
  * Copyright (c) 2003, 2007 The NetBSD Foundation, Inc.
@@ -100,7 +100,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: acpi.c,v 1.289 2021/02/04 21:39:00 thorpej Exp $");
+__KERNEL_RCSID(0, "$NetBSD: acpi.c,v 1.290 2021/02/05 17:13:40 thorpej Exp $");
 
 #include "pci.h"
 #include "opt_acpi.h"
@@ -1130,9 +1130,42 @@
  *     attaching devices.
  */
 void
-acpi_device_register(device_t dev __unused, void *v __unused)
+acpi_device_register(device_t dev, void *v)
 {
-       /* Placeholder. */
+       /* All we do here is set the devhandle in the device_t. */
+       device_t parent = device_parent(dev);
+       ACPI_HANDLE hdl = NULL;
+
+       /*
+        * aa_node is only valid if we attached to the "acpinodebus"
+        * interface attribute.
+        */
+       if (device_attached_to_iattr(dev, "acpinodebus")) {
+               const struct acpi_attach_args *aa = v;
+               hdl = aa->aa_node->ad_handle;
+       } else if (device_is_a(parent, "pci")) {
+               const struct pci_attach_args *pa = v;
+               struct acpi_devnode *ad;
+               u_int segment;
+
+#ifdef __HAVE_PCI_GET_SEGMENT
+               segment = pci_get_segment(pa->pa_pc);
+#else
+               segment = 0;
+#endif /* __HAVE_PCI_GET_SEGMENT */
+
+               ad = acpi_pcidev_find(segment,
+                   pa->pa_bus, pa->pa_device, pa->pa_function);
+               if (ad == NULL || (hdl = ad->ad_handle) == NULL) {
+                       aprint_debug_dev(dev, "no matching ACPI node\n");
+                       return;
+               }
+       } else {
+               return;
+       }
+       KASSERT(hdl != NULL);
+
+       device_set_handle(dev, devhandle_from_acpi(hdl));
 }
 
 /*