[src/netbsd-6]: src/sys/dev/acpi Pull up following revision(s) (requested by ...

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

details:   https://anonhg.NetBSD.org/src/rev/73237f696c63
branches:  netbsd-6
changeset: 775482:73237f696c63
user:      riz <riz%NetBSD.org@localhost>
date:      Thu Nov 22 00:34:25 2012 +0000

description:
Pull up following revision(s) (requested by chs in ticket #682):
        sys/dev/acpi/acpi_pci_link.c: revision 1.19
re-enable the code to disable link devices at startup, ie. revert rev 1.3.
this fixes PCI interrupts on some systems (eg. HP XW9400) and we suspect that
the problems which led to the original change were caused by buggy early
implementations of ACPI, which are now ignored by date.

diffstat:

 sys/dev/acpi/acpi_pci_link.c |  6 ++----
 1 files changed, 2 insertions(+), 4 deletions(-)

diffs (32 lines):

diff -r 73fa0578cdaf -r 73237f696c63 sys/dev/acpi/acpi_pci_link.c
--- a/sys/dev/acpi/acpi_pci_link.c      Thu Nov 22 00:27:54 2012 +0000
+++ b/sys/dev/acpi/acpi_pci_link.c      Thu Nov 22 00:34:25 2012 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: acpi_pci_link.c,v 1.18 2010/04/23 15:52:26 jruoho Exp $        */
+/*     $NetBSD: acpi_pci_link.c,v 1.18.14.1 2012/11/22 00:34:25 riz Exp $      */
 
 /*-
  * Copyright (c) 2002 Mitsuru IWASAKI <iwasaki%jp.freebsd.org@localhost>
@@ -27,7 +27,7 @@
  */
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: acpi_pci_link.c,v 1.18 2010/04/23 15:52:26 jruoho Exp $");
+__KERNEL_RCSID(0, "$NetBSD: acpi_pci_link.c,v 1.18.14.1 2012/11/22 00:34:25 riz Exp $");
 
 #include <sys/param.h>
 #include <sys/malloc.h>
@@ -533,13 +533,11 @@
         * run _DIS (i.e., the method doesn't exist), assume the initial
         * IRQ was routed by the BIOS.
         */
-#if 0  /* XXX causes spontaneaous resets on some systems. Disabled for now. */
        if (ACPI_SUCCESS(AcpiEvaluateObject(sc->pl_handle, "_DIS", NULL,
            NULL)))
                for (i = 0; i < sc->pl_num_links; i++)
                        sc->pl_links[i].l_irq = PCI_INVALID_IRQ;
        else
-#endif
                for (i = 0; i < sc->pl_num_links; i++)
                        if (PCI_INTERRUPT_VALID(sc->pl_links[i].l_irq))
                                sc->pl_links[i].l_routed = TRUE;