Lines Matching full:group
58 ssize_t (*show)(struct iommu_group *group, char *buf);
59 ssize_t (*store)(struct iommu_group *group,
83 static int iommu_alloc_default_domain(struct iommu_group *group,
90 struct iommu_group *group);
92 struct iommu_group *group);
93 static int iommu_create_device_direct_mappings(struct iommu_group *group,
202 struct iommu_group *group; in __iommu_probe_device() local
224 group = iommu_group_get_for_dev(dev); in __iommu_probe_device()
225 if (IS_ERR(group)) { in __iommu_probe_device()
226 ret = PTR_ERR(group); in __iommu_probe_device()
229 iommu_group_put(group); in __iommu_probe_device()
231 if (group_list && !group->default_domain && list_empty(&group->entry)) in __iommu_probe_device()
232 list_add_tail(&group->entry, group_list); in __iommu_probe_device()
253 struct iommu_group *group; in iommu_probe_device() local
260 group = iommu_group_get(dev); in iommu_probe_device()
261 if (!group) in iommu_probe_device()
270 iommu_alloc_default_domain(group, dev); in iommu_probe_device()
272 if (group->default_domain) { in iommu_probe_device()
273 ret = __iommu_attach_device(group->default_domain, dev); in iommu_probe_device()
275 iommu_group_put(group); in iommu_probe_device()
280 iommu_create_device_direct_mappings(group, dev); in iommu_probe_device()
282 iommu_group_put(group); in iommu_probe_device()
341 struct iommu_group *group = to_iommu_group(kobj); in iommu_group_attr_show() local
345 ret = attr->show(group, buf); in iommu_group_attr_show()
354 struct iommu_group *group = to_iommu_group(kobj); in iommu_group_attr_store() local
358 ret = attr->store(group, buf, count); in iommu_group_attr_store()
367 static int iommu_group_create_file(struct iommu_group *group, in iommu_group_create_file() argument
370 return sysfs_create_file(&group->kobj, &attr->attr); in iommu_group_create_file()
373 static void iommu_group_remove_file(struct iommu_group *group, in iommu_group_remove_file() argument
376 sysfs_remove_file(&group->kobj, &attr->attr); in iommu_group_remove_file()
379 static ssize_t iommu_group_show_name(struct iommu_group *group, char *buf) in iommu_group_show_name() argument
381 return sprintf(buf, "%s\n", group->name); in iommu_group_show_name()
460 int iommu_get_group_resv_regions(struct iommu_group *group, in iommu_get_group_resv_regions() argument
466 mutex_lock(&group->mutex); in iommu_get_group_resv_regions()
467 list_for_each_entry(device, &group->devices, list) { in iommu_get_group_resv_regions()
477 mutex_unlock(&group->mutex); in iommu_get_group_resv_regions()
482 static ssize_t iommu_group_show_resv_regions(struct iommu_group *group, in iommu_group_show_resv_regions() argument
490 iommu_get_group_resv_regions(group, &group_resv_regions); in iommu_group_show_resv_regions()
504 static ssize_t iommu_group_show_type(struct iommu_group *group, in iommu_group_show_type() argument
509 if (group->default_domain) { in iommu_group_show_type()
510 switch (group->default_domain->type) { in iommu_group_show_type()
539 struct iommu_group *group = to_iommu_group(kobj); in iommu_group_release() local
541 pr_debug("Releasing group %d\n", group->id); in iommu_group_release()
543 if (group->iommu_data_release) in iommu_group_release()
544 group->iommu_data_release(group->iommu_data); in iommu_group_release()
546 ida_simple_remove(&iommu_group_ida, group->id); in iommu_group_release()
548 if (group->default_domain) in iommu_group_release()
549 iommu_domain_free(group->default_domain); in iommu_group_release()
551 kfree(group->name); in iommu_group_release()
552 kfree(group); in iommu_group_release()
561 * iommu_group_alloc - Allocate a new group
564 * group. The iommu group represents the minimum granularity of the iommu.
566 * group in order to hold the group until devices are added. Use
568 * group to be automatically reclaimed once it has no devices or external
573 struct iommu_group *group; in iommu_group_alloc() local
576 group = kzalloc(sizeof(*group), GFP_KERNEL); in iommu_group_alloc()
577 if (!group) in iommu_group_alloc()
580 group->kobj.kset = iommu_group_kset; in iommu_group_alloc()
581 mutex_init(&group->mutex); in iommu_group_alloc()
582 INIT_LIST_HEAD(&group->devices); in iommu_group_alloc()
583 INIT_LIST_HEAD(&group->entry); in iommu_group_alloc()
584 BLOCKING_INIT_NOTIFIER_HEAD(&group->notifier); in iommu_group_alloc()
588 kfree(group); in iommu_group_alloc()
591 group->id = ret; in iommu_group_alloc()
593 ret = kobject_init_and_add(&group->kobj, &iommu_group_ktype, in iommu_group_alloc()
594 NULL, "%d", group->id); in iommu_group_alloc()
596 ida_simple_remove(&iommu_group_ida, group->id); in iommu_group_alloc()
597 kobject_put(&group->kobj); in iommu_group_alloc()
601 group->devices_kobj = kobject_create_and_add("devices", &group->kobj); in iommu_group_alloc()
602 if (!group->devices_kobj) { in iommu_group_alloc()
603 kobject_put(&group->kobj); /* triggers .release & free */ in iommu_group_alloc()
608 * The devices_kobj holds a reference on the group kobject, so in iommu_group_alloc()
609 * as long as that exists so will the group. We can therefore in iommu_group_alloc()
612 kobject_put(&group->kobj); in iommu_group_alloc()
614 ret = iommu_group_create_file(group, in iommu_group_alloc()
619 ret = iommu_group_create_file(group, &iommu_group_attr_type); in iommu_group_alloc()
623 pr_debug("Allocated group %d\n", group->id); in iommu_group_alloc()
625 return group; in iommu_group_alloc()
632 struct iommu_group *group; in iommu_group_get_by_id() local
648 group = container_of(group_kobj, struct iommu_group, kobj); in iommu_group_get_by_id()
649 BUG_ON(group->id != id); in iommu_group_get_by_id()
651 kobject_get(group->devices_kobj); in iommu_group_get_by_id()
652 kobject_put(&group->kobj); in iommu_group_get_by_id()
654 return group; in iommu_group_get_by_id()
659 * iommu_group_get_iommudata - retrieve iommu_data registered for a group
660 * @group: the group
662 * iommu drivers can store data in the group for use when doing iommu
664 * should hold a group reference.
666 void *iommu_group_get_iommudata(struct iommu_group *group) in iommu_group_get_iommudata() argument
668 return group->iommu_data; in iommu_group_get_iommudata()
673 * iommu_group_set_iommudata - set iommu_data for a group
674 * @group: the group
678 * iommu drivers can store data in the group for use when doing iommu
680 * the group has been allocated. Caller should hold a group reference.
682 void iommu_group_set_iommudata(struct iommu_group *group, void *iommu_data, in iommu_group_set_iommudata() argument
685 group->iommu_data = iommu_data; in iommu_group_set_iommudata()
686 group->iommu_data_release = release; in iommu_group_set_iommudata()
691 * iommu_group_set_name - set name for a group
692 * @group: the group
695 * Allow iommu driver to set a name for a group. When set it will
696 * appear in a name attribute file under the group in sysfs.
698 int iommu_group_set_name(struct iommu_group *group, const char *name) in iommu_group_set_name() argument
702 if (group->name) { in iommu_group_set_name()
703 iommu_group_remove_file(group, &iommu_group_attr_name); in iommu_group_set_name()
704 kfree(group->name); in iommu_group_set_name()
705 group->name = NULL; in iommu_group_set_name()
710 group->name = kstrdup(name, GFP_KERNEL); in iommu_group_set_name()
711 if (!group->name) in iommu_group_set_name()
714 ret = iommu_group_create_file(group, &iommu_group_attr_name); in iommu_group_set_name()
716 kfree(group->name); in iommu_group_set_name()
717 group->name = NULL; in iommu_group_set_name()
725 static int iommu_create_device_direct_mappings(struct iommu_group *group, in iommu_create_device_direct_mappings() argument
728 struct iommu_domain *domain = group->default_domain; in iommu_create_device_direct_mappings()
790 * iommu_group_add_device - add a device to an iommu group
791 * @group: the group into which to add the device (reference should be held)
795 * group. Adding a device increments the group reference count.
797 int iommu_group_add_device(struct iommu_group *group, struct device *dev) in iommu_group_add_device() argument
808 ret = sysfs_create_link(&dev->kobj, &group->kobj, "iommu_group"); in iommu_group_add_device()
819 ret = sysfs_create_link_nowarn(group->devices_kobj, in iommu_group_add_device()
835 kobject_get(group->devices_kobj); in iommu_group_add_device()
837 dev->iommu_group = group; in iommu_group_add_device()
839 mutex_lock(&group->mutex); in iommu_group_add_device()
840 list_add_tail(&device->list, &group->devices); in iommu_group_add_device()
841 if (group->domain && !iommu_is_attach_deferred(group->domain, dev)) in iommu_group_add_device()
842 ret = __iommu_attach_device(group->domain, dev); in iommu_group_add_device()
843 mutex_unlock(&group->mutex); in iommu_group_add_device()
847 /* Notify any listeners about change to group. */ in iommu_group_add_device()
848 blocking_notifier_call_chain(&group->notifier, in iommu_group_add_device()
851 trace_add_device_to_group(group->id, dev); in iommu_group_add_device()
853 dev_info(dev, "Adding to iommu group %d\n", group->id); in iommu_group_add_device()
858 mutex_lock(&group->mutex); in iommu_group_add_device()
860 mutex_unlock(&group->mutex); in iommu_group_add_device()
862 kobject_put(group->devices_kobj); in iommu_group_add_device()
863 sysfs_remove_link(group->devices_kobj, device->name); in iommu_group_add_device()
870 dev_err(dev, "Failed to add to iommu group %d: %d\n", group->id, ret); in iommu_group_add_device()
876 * iommu_group_remove_device - remove a device from it's current group
880 * it's current group. This decrements the iommu group reference count.
884 struct iommu_group *group = dev->iommu_group; in iommu_group_remove_device() local
887 if (!group) in iommu_group_remove_device()
890 dev_info(dev, "Removing from iommu group %d\n", group->id); in iommu_group_remove_device()
893 blocking_notifier_call_chain(&group->notifier, in iommu_group_remove_device()
896 mutex_lock(&group->mutex); in iommu_group_remove_device()
897 list_for_each_entry(tmp_device, &group->devices, list) { in iommu_group_remove_device()
904 mutex_unlock(&group->mutex); in iommu_group_remove_device()
909 sysfs_remove_link(group->devices_kobj, device->name); in iommu_group_remove_device()
912 trace_remove_device_from_group(group->id, dev); in iommu_group_remove_device()
917 kobject_put(group->devices_kobj); in iommu_group_remove_device()
921 static int iommu_group_device_count(struct iommu_group *group) in iommu_group_device_count() argument
926 list_for_each_entry(entry, &group->devices, list) in iommu_group_device_count()
933 * iommu_group_for_each_dev - iterate over each device in the group
934 * @group: the group
938 * This function is called by group users to iterate over group devices.
939 * Callers should hold a reference count to the group during callback.
940 * The group->mutex is held across callbacks, which will block calls to
943 static int __iommu_group_for_each_dev(struct iommu_group *group, void *data, in __iommu_group_for_each_dev() argument
949 list_for_each_entry(device, &group->devices, list) { in __iommu_group_for_each_dev()
958 int iommu_group_for_each_dev(struct iommu_group *group, void *data, in iommu_group_for_each_dev() argument
963 mutex_lock(&group->mutex); in iommu_group_for_each_dev()
964 ret = __iommu_group_for_each_dev(group, data, fn); in iommu_group_for_each_dev()
965 mutex_unlock(&group->mutex); in iommu_group_for_each_dev()
972 * iommu_group_get - Return the group for a device and increment reference
973 * @dev: get the group that this device belongs to
975 * This function is called by iommu drivers and users to get the group
976 * for the specified device. If found, the group is returned and the group
981 struct iommu_group *group = dev->iommu_group; in iommu_group_get() local
983 if (group) in iommu_group_get()
984 kobject_get(group->devices_kobj); in iommu_group_get()
986 return group; in iommu_group_get()
991 * iommu_group_ref_get - Increment reference on a group
992 * @group: the group to use, must not be NULL
995 * existing group. Returns the given group for convenience.
997 struct iommu_group *iommu_group_ref_get(struct iommu_group *group) in iommu_group_ref_get() argument
999 kobject_get(group->devices_kobj); in iommu_group_ref_get()
1000 return group; in iommu_group_ref_get()
1005 * iommu_group_put - Decrement group reference
1006 * @group: the group to use
1009 * iommu group. Once the reference count is zero, the group is released.
1011 void iommu_group_put(struct iommu_group *group) in iommu_group_put() argument
1013 if (group) in iommu_group_put()
1014 kobject_put(group->devices_kobj); in iommu_group_put()
1019 * iommu_group_register_notifier - Register a notifier for group changes
1020 * @group: the group to watch
1023 * This function allows iommu group users to track changes in a group.
1025 * should hold a reference to the group throughout notifier registration.
1027 int iommu_group_register_notifier(struct iommu_group *group, in iommu_group_register_notifier() argument
1030 return blocking_notifier_chain_register(&group->notifier, nb); in iommu_group_register_notifier()
1036 * @group: the group to watch
1039 * Unregister a previously registered group notifier block.
1041 int iommu_group_unregister_notifier(struct iommu_group *group, in iommu_group_unregister_notifier() argument
1044 return blocking_notifier_chain_unregister(&group->notifier, nb); in iommu_group_unregister_notifier()
1233 * matched using the group ID, the PASID valid bit and the PASID in iommu_page_response()
1234 * value. Otherwise only the group ID matches request and in iommu_page_response()
1260 * iommu_group_id - Return ID for a group
1261 * @group: the group to ID
1263 * Return the unique ID for the group matching the sysfs group number.
1265 int iommu_group_id(struct iommu_group *group) in iommu_group_id() argument
1267 return group->id; in iommu_group_id()
1288 * that may already have a group.
1294 struct iommu_group *group; in get_pci_function_alias_group() local
1305 group = get_pci_alias_group(tmp, devfns); in get_pci_function_alias_group()
1306 if (group) { in get_pci_function_alias_group()
1308 return group; in get_pci_function_alias_group()
1328 struct iommu_group *group; in get_pci_alias_group() local
1333 group = iommu_group_get(&pdev->dev); in get_pci_alias_group()
1334 if (group) in get_pci_alias_group()
1335 return group; in get_pci_alias_group()
1343 group = get_pci_alias_group(tmp, devfns); in get_pci_alias_group()
1344 if (group) { in get_pci_alias_group()
1346 return group; in get_pci_alias_group()
1349 group = get_pci_function_alias_group(tmp, devfns); in get_pci_alias_group()
1350 if (group) { in get_pci_alias_group()
1352 return group; in get_pci_alias_group()
1362 struct iommu_group *group; member
1367 * the IOMMU group if we find one along the way.
1374 data->group = iommu_group_get(&pdev->dev); in get_pci_alias_or_group()
1376 return data->group != NULL; in get_pci_alias_or_group()
1381 * iommu-group per device.
1391 * to find or create an IOMMU group for a device.
1398 struct iommu_group *group = NULL; in pci_device_group() local
1406 * be aliased due to topology in order to have its own IOMMU group. in pci_device_group()
1408 * group, use it. in pci_device_group()
1411 return data.group; in pci_device_group()
1419 * group, use it. in pci_device_group()
1430 group = iommu_group_get(&pdev->dev); in pci_device_group()
1431 if (group) in pci_device_group()
1432 return group; in pci_device_group()
1437 * device or another device aliases us, use the same group. in pci_device_group()
1439 group = get_pci_alias_group(pdev, (unsigned long *)devfns); in pci_device_group()
1440 if (group) in pci_device_group()
1441 return group; in pci_device_group()
1448 group = get_pci_function_alias_group(pdev, (unsigned long *)devfns); in pci_device_group()
1449 if (group) in pci_device_group()
1450 return group; in pci_device_group()
1452 /* No shared group found, allocate new */ in pci_device_group()
1457 /* Get the IOMMU group for device on fsl-mc bus */
1461 struct iommu_group *group; in fsl_mc_device_group() local
1463 group = iommu_group_get(cont_dev); in fsl_mc_device_group()
1464 if (!group) in fsl_mc_device_group()
1465 group = iommu_group_alloc(); in fsl_mc_device_group()
1466 return group; in fsl_mc_device_group()
1482 struct iommu_group *group, in iommu_group_alloc_default_domain() argument
1491 …pr_warn("Failed to allocate default IOMMU domain of type %u for group %s - Falling back to IOMMU_D… in iommu_group_alloc_default_domain()
1492 type, group->name); in iommu_group_alloc_default_domain()
1498 group->default_domain = dom; in iommu_group_alloc_default_domain()
1499 if (!group->domain) in iommu_group_alloc_default_domain()
1500 group->domain = dom; in iommu_group_alloc_default_domain()
1512 static int iommu_alloc_default_domain(struct iommu_group *group, in iommu_alloc_default_domain() argument
1517 if (group->default_domain) in iommu_alloc_default_domain()
1522 return iommu_group_alloc_default_domain(dev->bus, group, type); in iommu_alloc_default_domain()
1526 * iommu_group_get_for_dev - Find or create the IOMMU group for a device
1531 * IOMMU group for a device. On success, the caller will hold a reference
1532 * to the returned IOMMU group, which will already include the provided
1538 struct iommu_group *group; in iommu_group_get_for_dev() local
1541 group = iommu_group_get(dev); in iommu_group_get_for_dev()
1542 if (group) in iommu_group_get_for_dev()
1543 return group; in iommu_group_get_for_dev()
1548 group = ops->device_group(dev); in iommu_group_get_for_dev()
1549 if (WARN_ON_ONCE(group == NULL)) in iommu_group_get_for_dev()
1552 if (IS_ERR(group)) in iommu_group_get_for_dev()
1553 return group; in iommu_group_get_for_dev()
1555 ret = iommu_group_add_device(group, dev); in iommu_group_get_for_dev()
1559 return group; in iommu_group_get_for_dev()
1562 iommu_group_put(group); in iommu_group_get_for_dev()
1567 struct iommu_domain *iommu_group_default_domain(struct iommu_group *group) in iommu_group_default_domain() argument
1569 return group->default_domain; in iommu_group_default_domain()
1575 struct iommu_group *group; in probe_iommu_group() local
1578 /* Device is probed already if in a group */ in probe_iommu_group()
1579 group = iommu_group_get(dev); in probe_iommu_group()
1580 if (group) { in probe_iommu_group()
1581 iommu_group_put(group); in probe_iommu_group()
1604 struct iommu_group *group; in iommu_bus_notifier() local
1608 * result in ADD/DEL notifiers to group->notifier in iommu_bus_notifier()
1622 * group, if anyone is listening in iommu_bus_notifier()
1624 group = iommu_group_get(dev); in iommu_bus_notifier()
1625 if (!group) in iommu_bus_notifier()
1644 blocking_notifier_call_chain(&group->notifier, in iommu_bus_notifier()
1647 iommu_group_put(group); in iommu_bus_notifier()
1667 …dev_warn(dev, "Device needs domain type %s, but device %s in the same iommu group requires type %s… in probe_get_default_domain_type()
1684 struct iommu_group *group) in probe_alloc_default_domain() argument
1690 /* Ask for default domain requirements of all devices in the group */ in probe_alloc_default_domain()
1691 __iommu_group_for_each_dev(group, >ype, in probe_alloc_default_domain()
1697 iommu_group_alloc_default_domain(bus, group, gtype.type); in probe_alloc_default_domain()
1712 static int __iommu_group_dma_attach(struct iommu_group *group) in __iommu_group_dma_attach() argument
1714 return __iommu_group_for_each_dev(group, group->default_domain, in __iommu_group_dma_attach()
1728 static void __iommu_group_dma_finalize(struct iommu_group *group) in __iommu_group_dma_finalize() argument
1730 __iommu_group_for_each_dev(group, group->default_domain, in __iommu_group_dma_finalize()
1736 struct iommu_group *group = data; in iommu_do_create_direct_mappings() local
1738 iommu_create_device_direct_mappings(group, dev); in iommu_do_create_direct_mappings()
1743 static int iommu_group_create_direct_mappings(struct iommu_group *group) in iommu_group_create_direct_mappings() argument
1745 return __iommu_group_for_each_dev(group, group, in iommu_group_create_direct_mappings()
1751 struct iommu_group *group, *next; in bus_iommu_probe() local
1757 * creating the iommu group, so do it after the groups are in bus_iommu_probe()
1764 list_for_each_entry_safe(group, next, &group_list, entry) { in bus_iommu_probe()
1766 list_del_init(&group->entry); in bus_iommu_probe()
1768 mutex_lock(&group->mutex); in bus_iommu_probe()
1771 probe_alloc_default_domain(bus, group); in bus_iommu_probe()
1773 if (!group->default_domain) { in bus_iommu_probe()
1774 mutex_unlock(&group->mutex); in bus_iommu_probe()
1778 iommu_group_create_direct_mappings(group); in bus_iommu_probe()
1780 ret = __iommu_group_dma_attach(group); in bus_iommu_probe()
1782 mutex_unlock(&group->mutex); in bus_iommu_probe()
1787 __iommu_group_dma_finalize(group); in bus_iommu_probe()
1948 struct iommu_group *group; in iommu_attach_device() local
1951 group = iommu_group_get(dev); in iommu_attach_device()
1952 if (!group) in iommu_attach_device()
1956 * Lock the group to make sure the device-count doesn't in iommu_attach_device()
1959 mutex_lock(&group->mutex); in iommu_attach_device()
1961 if (iommu_group_device_count(group) != 1) in iommu_attach_device()
1964 ret = __iommu_attach_group(domain, group); in iommu_attach_device()
1967 mutex_unlock(&group->mutex); in iommu_attach_device()
1968 iommu_group_put(group); in iommu_attach_device()
2199 struct iommu_group *group; in iommu_detach_device() local
2201 group = iommu_group_get(dev); in iommu_detach_device()
2202 if (!group) in iommu_detach_device()
2205 mutex_lock(&group->mutex); in iommu_detach_device()
2206 if (iommu_group_device_count(group) != 1) { in iommu_detach_device()
2211 __iommu_detach_group(domain, group); in iommu_detach_device()
2214 mutex_unlock(&group->mutex); in iommu_detach_device()
2215 iommu_group_put(group); in iommu_detach_device()
2222 struct iommu_group *group; in iommu_get_domain_for_dev() local
2224 group = iommu_group_get(dev); in iommu_get_domain_for_dev()
2225 if (!group) in iommu_get_domain_for_dev()
2228 domain = group->domain; in iommu_get_domain_for_dev()
2230 iommu_group_put(group); in iommu_get_domain_for_dev()
2238 * guarantees that the group and its default domain are valid and correct.
2248 * iterating over the devices in a group. Ideally we'd have a single
2249 * device which represents the requestor ID of the group, but we also
2252 * wish to group them at a higher level (ex. untrusted multi-function
2263 struct iommu_group *group) in __iommu_attach_group() argument
2267 if (group->default_domain && group->domain != group->default_domain) in __iommu_attach_group()
2270 ret = __iommu_group_for_each_dev(group, domain, in __iommu_attach_group()
2273 group->domain = domain; in __iommu_attach_group()
2278 int iommu_attach_group(struct iommu_domain *domain, struct iommu_group *group) in iommu_attach_group() argument
2282 mutex_lock(&group->mutex); in iommu_attach_group()
2283 ret = __iommu_attach_group(domain, group); in iommu_attach_group()
2284 mutex_unlock(&group->mutex); in iommu_attach_group()
2300 struct iommu_group *group) in __iommu_detach_group() argument
2304 if (!group->default_domain) { in __iommu_detach_group()
2305 __iommu_group_for_each_dev(group, domain, in __iommu_detach_group()
2307 group->domain = NULL; in __iommu_detach_group()
2311 if (group->domain == group->default_domain) in __iommu_detach_group()
2315 ret = __iommu_group_for_each_dev(group, group->default_domain, in __iommu_detach_group()
2320 group->domain = group->default_domain; in __iommu_detach_group()
2323 void iommu_detach_group(struct iommu_domain *domain, struct iommu_group *group) in iommu_detach_group() argument
2325 mutex_lock(&group->mutex); in iommu_detach_group()
2326 __iommu_detach_group(domain, group); in iommu_detach_group()
2327 mutex_unlock(&group->mutex); in iommu_detach_group()
2987 struct iommu_group *group; in iommu_sva_bind_device() local
2994 group = iommu_group_get(dev); in iommu_sva_bind_device()
2995 if (!group) in iommu_sva_bind_device()
2999 mutex_lock(&group->mutex); in iommu_sva_bind_device()
3007 if (iommu_group_device_count(group) != 1) in iommu_sva_bind_device()
3013 mutex_unlock(&group->mutex); in iommu_sva_bind_device()
3014 iommu_group_put(group); in iommu_sva_bind_device()
3032 struct iommu_group *group; in iommu_sva_unbind_device() local
3039 group = iommu_group_get(dev); in iommu_sva_unbind_device()
3040 if (!group) in iommu_sva_unbind_device()
3043 mutex_lock(&group->mutex); in iommu_sva_unbind_device()
3045 mutex_unlock(&group->mutex); in iommu_sva_unbind_device()
3047 iommu_group_put(group); in iommu_sva_unbind_device()