struct iommu_group *group);
static void __iommu_detach_group(struct iommu_domain *domain,
struct iommu_group *group);
+static int iommu_create_device_direct_mappings(struct iommu_group *group,
+ struct device *dev);
#define IOMMU_GROUP_ATTR(_name, _mode, _show, _store) \
struct iommu_group_attribute iommu_group_attr_##_name = \
if (group->default_domain)
ret = __iommu_attach_device(group->default_domain, dev);
+ iommu_create_device_direct_mappings(group, dev);
+
iommu_group_put(group);
if (ret)
int iommu_probe_device(struct device *dev)
{
const struct iommu_ops *ops = dev->bus->iommu_ops;
+ struct iommu_group *group;
int ret;
WARN_ON(dev->iommu_group);
if (ret)
goto err_module_put;
+ group = iommu_group_get(dev);
+ iommu_create_device_direct_mappings(group, dev);
+ iommu_group_put(group);
+
if (ops->probe_finalize)
ops->probe_finalize(dev);
}
EXPORT_SYMBOL_GPL(iommu_group_set_name);
-static int iommu_group_create_direct_mappings(struct iommu_group *group,
- struct device *dev)
+static int iommu_create_device_direct_mappings(struct iommu_group *group,
+ struct device *dev)
{
struct iommu_domain *domain = group->default_domain;
struct iommu_resv_region *entry;
dev->iommu_group = group;
- iommu_group_create_direct_mappings(group, dev);
-
mutex_lock(&group->mutex);
list_add_tail(&device->list, &group->devices);
if (group->domain)
gtype.type = iommu_def_domain_type;
iommu_group_alloc_default_domain(bus, group, gtype.type);
+
}
static int iommu_group_do_dma_attach(struct device *dev, void *data)
iommu_group_do_dma_attach);
}
+static int iommu_do_create_direct_mappings(struct device *dev, void *data)
+{
+ struct iommu_group *group = data;
+
+ iommu_create_device_direct_mappings(group, dev);
+
+ return 0;
+}
+
+static int iommu_group_create_direct_mappings(struct iommu_group *group)
+{
+ return __iommu_group_for_each_dev(group, group,
+ iommu_do_create_direct_mappings);
+}
+
static int bus_iommu_probe(struct bus_type *bus)
{
const struct iommu_ops *ops = bus->iommu_ops;
continue;
}
+ iommu_group_create_direct_mappings(group);
+
ret = __iommu_group_dma_attach(group);
mutex_unlock(&group->mutex);
iommu_domain_free(group->default_domain);
group->default_domain = domain;
- iommu_group_create_direct_mappings(group, dev);
+ iommu_create_device_direct_mappings(group, dev);
dev_info(dev, "Using iommu %s mapping\n",
type == IOMMU_DOMAIN_DMA ? "dma" : "direct");