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MFC: If we get a source index in a _PRT entry that is not zero, assume that

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it is really a hard-wired IRQ and not a source index.
This commit is contained in:
jhb 2005-11-21 19:33:23 +00:00
parent 4fb875f259
commit 522b34fd64
1 changed files with 12 additions and 1 deletions
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13
sys/dev/acpica/acpi_pcib.c
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@ -96,6 +96,13 @@ prt_attach_devices(ACPI_PCI_ROUTING_TABLE *entry, void *arg)
if (entry->Source == NULL || entry->Source[0] == '\0')
return;
/*
* In practice, we only see SourceIndex's of 0 out in the wild.
* When indices != 0 have been found, they've been bugs in the ASL.
*/
if (entry->SourceIndex != 0)
return;
/* Lookup the associated handle and device. */
pcib = (device_t)arg;
if (ACPI_FAILURE(AcpiGetHandle(ACPI_ROOT_OBJECT, entry->Source, &handle)))
@ -236,8 +243,12 @@ acpi_pcib_route_interrupt(device_t pcib, device_t dev, int pin,
/*
* If source is empty/NULL, the source index is a global IRQ number
* and it's hard-wired so we're done.
*
* XXX: If the source index is non-zero, ignore the source device and
* assume that this is a hard-wired entry.
*/
if (prt->Source == NULL || prt->Source[0] == '\0') {
if (prt->Source == NULL || prt->Source[0] == '\0' ||
prt->SourceIndex != 0) {
if (bootverbose)
device_printf(pcib, "slot %d INT%c hardwired to IRQ %d\n",
pci_get_slot(dev), 'A' + pin, prt->SourceIndex);