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| author | jhb <jhb@FreeBSD.org> | 2007-10-27 13:12:29 +0000 |
|---|---|---|
| committer | jhb <jhb@FreeBSD.org> | 2007-10-27 13:12:29 +0000 |
| commit | b116d381a4dee57cf9ac76ab74ab18775ab43fa3 (patch) | |
| tree | 6a649aa8180c7abb94a56cdc4c62ba08cd2cbd5a /sys | |
| parent | a0d5330ec04330856251aac0b8c9ff9f448fa583 (diff) | |
| download | FreeBSD-src-b116d381a4dee57cf9ac76ab74ab18775ab43fa3.zip FreeBSD-src-b116d381a4dee57cf9ac76ab74ab18775ab43fa3.tar.gz | |
Don't always re-route IRQs on resume. If this link hasn't been used, then
disable it with _DIS rather than assigning it an IRQ on resume.
MFC after: 1 week
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/dev/acpica/acpi_pci_link.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/sys/dev/acpica/acpi_pci_link.c b/sys/dev/acpica/acpi_pci_link.c index 4c3c306..775d0ca 100644 --- a/sys/dev/acpica/acpi_pci_link.c +++ b/sys/dev/acpica/acpi_pci_link.c @@ -916,10 +916,25 @@ acpi_pci_link_route_irqs(device_t dev) static int acpi_pci_link_resume(device_t dev) { + struct acpi_pci_link_softc *sc; ACPI_STATUS status; + int i, routed; + /* + * If all of our links are routed, then restore the link via _SRS, + * otherwise, disable the link via _DIS. + */ ACPI_SERIAL_BEGIN(pci_link); - status = acpi_pci_link_route_irqs(dev); + sc = device_get_softc(dev); + routed = 0; + for (i = 0; i < sc->pl_num_links; i++) + if (sc->pl_links[i].l_routed) + routed++; + if (routed == sc->pl_num_links) + status = acpi_pci_link_route_irqs(dev); + else + status = AcpiEvaluateObject(acpi_get_handle(dev), "_DIS", NULL, + NULL); ACPI_SERIAL_END(pci_link); if (ACPI_FAILURE(status)) return (ENXIO); |
