d/freebsd-skq
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

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

Browse Source 
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
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
sys/dev/acpica/acpi_pcib.c
View File

@ -96,6 +96,13 @@ prt_attach_devices(ACPI_PCI_ROUTING_TABLE *entry, void *arg)
if (entry->Source == NULL || entry->Source[0] == '\0') if (entry->Source == NULL || entry->Source[0] == '\0')
return; 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. */ /* Lookup the associated handle and device. */
pcib = (device_t)arg; pcib = (device_t)arg;
if (ACPI_FAILURE(AcpiGetHandle(ACPI_ROOT_OBJECT, entry->Source, &handle))) 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 * If source is empty/NULL, the source index is a global IRQ number
* and it's hard-wired so we're done. * 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) if (bootverbose)
device_printf(pcib, "slot %d INT%c hardwired to IRQ %d\n", device_printf(pcib, "slot %d INT%c hardwired to IRQ %d\n",
pci_get_slot(dev), 'A' + pin, prt->SourceIndex); pci_get_slot(dev), 'A' + pin, prt->SourceIndex);