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Resume critical PCI devices (and their children) first, then everything else

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later.  This give us better chance to catch device driver problems.
This commit is contained in:
Jung-uk Kim 2010-11-22 21:58:00 +00:00
parent 54e1a99c14
commit f68ff88c87
1 changed files with 28 additions and 1 deletions
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29
sys/dev/pci/pci.c
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@ -3022,8 +3022,35 @@ pci_resume(device_t dev)
if (!device_is_attached(child))
pci_cfg_save(child, dinfo, 1);
}
/*
* Resume critical devices first, then everything else later.
*/
for (i = 0; i < numdevs; i++) {
child = devlist[i];
switch (pci_get_class(child)) {
case PCIC_DISPLAY:
case PCIC_MEMORY:
case PCIC_BRIDGE:
case PCIC_BASEPERIPH:
DEVICE_RESUME(child);
break;
}
}
for (i = 0; i < numdevs; i++) {
child = devlist[i];
switch (pci_get_class(child)) {
case PCIC_DISPLAY:
case PCIC_MEMORY:
case PCIC_BRIDGE:
case PCIC_BASEPERIPH:
break;
default:
DEVICE_RESUME(child);
}
}
free(devlist, M_TEMP);
return (bus_generic_resume(dev));
return (0);
}
static void