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Differential D31831 Diff 94679 sys/dev/acpica/acpi_pci.c

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sys/dev/acpica/acpi_pci.c

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acpi_pci_bus_notify_handler(ACPI_HANDLE h, UINT32 notify, void *context) acpi_pci_bus_notify_handler(ACPI_HANDLE h, UINT32 notify, void *context)
{ {
device_t dev; device_t dev;
dev = context; dev = context;
switch (notify) { switch (notify) {
case ACPI_NOTIFY_BUS_CHECK: case ACPI_NOTIFY_BUS_CHECK:
mtx_lock(&Giant); bus_topo_lock();
BUS_RESCAN(dev); BUS_RESCAN(dev);
mtx_unlock(&Giant); bus_topo_unlock();
break; break;
default: default:
device_printf(dev, "unknown notify %#x\n", notify); device_printf(dev, "unknown notify %#x\n", notify);
break; break;
} }
} }
static void static void
acpi_pci_device_notify_handler(ACPI_HANDLE h, UINT32 notify, void *context) acpi_pci_device_notify_handler(ACPI_HANDLE h, UINT32 notify, void *context)
{ {
device_t child, dev; device_t child, dev;
ACPI_STATUS status; ACPI_STATUS status;
int error; int error;
dev = context; dev = context;
switch (notify) { switch (notify) {
case ACPI_NOTIFY_DEVICE_CHECK: case ACPI_NOTIFY_DEVICE_CHECK:
mtx_lock(&Giant); bus_topo_lock();
BUS_RESCAN(dev); BUS_RESCAN(dev);
mtx_unlock(&Giant); bus_topo_unlock();
break; break;
case ACPI_NOTIFY_EJECT_REQUEST: case ACPI_NOTIFY_EJECT_REQUEST:
child = acpi_get_device(h); child = acpi_get_device(h);
if (child == NULL) { if (child == NULL) {
device_printf(dev, "no device to eject for %s\n", device_printf(dev, "no device to eject for %s\n",
acpi_name(h)); acpi_name(h));
return; return;
} }
mtx_lock(&Giant); bus_topo_lock();
error = device_detach(child); error = device_detach(child);
if (error) { if (error) {
mtx_unlock(&Giant); bus_topo_unlock();
device_printf(dev, "failed to detach %s: %d\n", device_printf(dev, "failed to detach %s: %d\n",
device_get_nameunit(child), error); device_get_nameunit(child), error);
return; return;
} }
status = acpi_SetInteger(h, "_EJ0", 1); status = acpi_SetInteger(h, "_EJ0", 1);
if (ACPI_FAILURE(status)) { if (ACPI_FAILURE(status)) {
mtx_unlock(&Giant); bus_topo_unlock();
device_printf(dev, "failed to eject %s: %s\n", device_printf(dev, "failed to eject %s: %s\n",
acpi_name(h), AcpiFormatException(status)); acpi_name(h), AcpiFormatException(status));
return; return;
} }
BUS_RESCAN(dev); BUS_RESCAN(dev);
mtx_unlock(&Giant); bus_topo_unlock();
break; break;
default: default:
device_printf(dev, "unknown notify %#x for %s\n", notify, device_printf(dev, "unknown notify %#x for %s\n", notify,
acpi_name(h)); acpi_name(h));
break; break;
} }
} }
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