diff options
| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2013-12-31 13:41:08 +0100 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2013-12-31 13:41:08 +0100 |
| commit | d1badf8d4323cfc9325b06651bdfcf7df09f1f0e (patch) | |
| tree | 08a8a8dab1955bb07724028ece639267502a07ba /drivers/pci | |
| parent | ACPI / hotplug / driver core: Handle containers in a special way (diff) | |
| parent | ACPIPHP / radeon / nouveau: Fix VGA switcheroo problem related to hotplug (diff) | |
| download | linux-d1badf8d4323cfc9325b06651bdfcf7df09f1f0e.tar.xz linux-d1badf8d4323cfc9325b06651bdfcf7df09f1f0e.zip | |
Merge branch 'acpi-pci-hotplug' into acpi-hotplug
Conflicts:
include/acpi/acpi_bus.h
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/hotplug/acpiphp_glue.c | 26 |
1 files changed, 23 insertions, 3 deletions
diff --git a/drivers/pci/hotplug/acpiphp_glue.c b/drivers/pci/hotplug/acpiphp_glue.c index ec4ddae1fb54..4f0c40d405fc 100644 --- a/drivers/pci/hotplug/acpiphp_glue.c +++ b/drivers/pci/hotplug/acpiphp_glue.c @@ -645,6 +645,24 @@ static void disable_slot(struct acpiphp_slot *slot) slot->flags &= (~SLOT_ENABLED); } +static bool acpiphp_no_hotplug(acpi_handle handle) +{ + struct acpi_device *adev = NULL; + + acpi_bus_get_device(handle, &adev); + return adev && adev->flags.no_hotplug; +} + +static bool slot_no_hotplug(struct acpiphp_slot *slot) +{ + struct acpiphp_func *func; + + list_for_each_entry(func, &slot->funcs, sibling) + if (acpiphp_no_hotplug(func_to_handle(func))) + return true; + + return false; +} /** * get_slot_status - get ACPI slot status @@ -703,7 +721,8 @@ static void trim_stale_devices(struct pci_dev *dev) unsigned long long sta; status = acpi_evaluate_integer(handle, "_STA", NULL, &sta); - alive = ACPI_SUCCESS(status) && sta == ACPI_STA_ALL; + alive = (ACPI_SUCCESS(status) && sta == ACPI_STA_ALL) + || acpiphp_no_hotplug(handle); } if (!alive) { u32 v; @@ -743,8 +762,9 @@ static void acpiphp_check_bridge(struct acpiphp_bridge *bridge) struct pci_dev *dev, *tmp; mutex_lock(&slot->crit_sect); - /* wake up all functions */ - if (get_slot_status(slot) == ACPI_STA_ALL) { + if (slot_no_hotplug(slot)) { + ; /* do nothing */ + } else if (get_slot_status(slot) == ACPI_STA_ALL) { /* remove stale devices if any */ list_for_each_entry_safe(dev, tmp, &bus->devices, bus_list) |