}
EXPORT_SYMBOL(vio_unregister_driver);
-struct mdesc_node *vio_find_endpoint(struct vio_dev *vdev)
-{
- struct mdesc_node *endp, *mp = vdev->mp;
- int i;
-
- endp = NULL;
- for (i = 0; i < mp->num_arcs; i++) {
- struct mdesc_node *t;
-
- if (strcmp(mp->arcs[i].name, "fwd"))
- continue;
-
- t = mp->arcs[i].arc;
- if (strcmp(t->name, "channel-endpoint"))
- continue;
-
- endp = t;
- break;
- }
-
- return endp;
-}
-EXPORT_SYMBOL(vio_find_endpoint);
-
static void __devinit vio_dev_release(struct device *dev)
{
kfree(to_vio_dev(dev));
static struct vio_dev *root_vdev;
static u64 cdev_cfg_handle;
-static struct vio_dev *vio_create_one(struct mdesc_node *mp,
+static void vio_fill_channel_info(struct mdesc_handle *hp, u64 mp,
+ struct vio_dev *vdev)
+{
+ u64 a;
+
+ mdesc_for_each_arc(a, hp, mp, MDESC_ARC_TYPE_FWD) {
+ const u64 *chan_id;
+ const u64 *irq;
+ u64 target;
+
+ target = mdesc_arc_target(hp, a);
+
+ irq = mdesc_get_property(hp, target, "tx-ino", NULL);
+ if (irq)
+ vdev->tx_irq = sun4v_build_virq(cdev_cfg_handle, *irq);
+
+ irq = mdesc_get_property(hp, target, "rx-ino", NULL);
+ if (irq)
+ vdev->rx_irq = sun4v_build_virq(cdev_cfg_handle, *irq);
+
+ chan_id = mdesc_get_property(hp, target, "id", NULL);
+ if (chan_id)
+ vdev->channel_id = *chan_id;
+ }
+}
+
+static struct vio_dev *vio_create_one(struct mdesc_handle *hp, u64 mp,
struct device *parent)
{
const char *type, *compat;
struct device_node *dp;
struct vio_dev *vdev;
- const u64 *irq;
int err, clen;
- type = md_get_property(mp, "device-type", NULL);
+ type = mdesc_get_property(hp, mp, "device-type", NULL);
if (!type) {
- type = md_get_property(mp, "name", NULL);
+ type = mdesc_get_property(hp, mp, "name", NULL);
if (!type)
- type = mp->name;
+ type = mdesc_node_name(hp, mp);
}
- compat = md_get_property(mp, "device-type", &clen);
+ compat = mdesc_get_property(hp, mp, "device-type", &clen);
vdev = kzalloc(sizeof(*vdev), GFP_KERNEL);
if (!vdev) {
vdev->compat = compat;
vdev->compat_len = clen;
- irq = md_get_property(mp, "tx-ino", NULL);
- if (irq)
- mp->irqs[0] = sun4v_build_virq(cdev_cfg_handle, *irq);
+ vdev->channel_id = ~0UL;
+ vdev->tx_irq = ~0;
+ vdev->rx_irq = ~0;
- irq = md_get_property(mp, "rx-ino", NULL);
- if (irq)
- mp->irqs[1] = sun4v_build_virq(cdev_cfg_handle, *irq);
+ vio_fill_channel_info(hp, mp, vdev);
- snprintf(vdev->dev.bus_id, BUS_ID_SIZE, "%lx", mp->node);
+ snprintf(vdev->dev.bus_id, BUS_ID_SIZE, "%lx", mp);
vdev->dev.parent = parent;
vdev->dev.bus = &vio_bus_type;
vdev->dev.release = vio_dev_release;
return vdev;
}
-static void walk_tree(struct mdesc_node *n, struct vio_dev *parent)
+static void walk_tree(struct mdesc_handle *hp, u64 n, struct vio_dev *parent)
{
- int i;
+ u64 a;
- for (i = 0; i < n->num_arcs; i++) {
- struct mdesc_node *mp;
+ mdesc_for_each_arc(a, hp, n, MDESC_ARC_TYPE_FWD) {
struct vio_dev *vdev;
+ u64 target;
- if (strcmp(n->arcs[i].name, "fwd"))
- continue;
-
- mp = n->arcs[i].arc;
-
- vdev = vio_create_one(mp, &parent->dev);
- if (vdev && mp->num_arcs)
- walk_tree(mp, vdev);
+ target = mdesc_arc_target(hp, a);
+ vdev = vio_create_one(hp, target, &parent->dev);
+ if (vdev)
+ walk_tree(hp, target, vdev);
}
}
-static void create_devices(struct mdesc_node *root)
+static void create_devices(struct mdesc_handle *hp, u64 root)
{
- struct mdesc_node *mp;
+ u64 mp;
- root_vdev = vio_create_one(root, NULL);
+ root_vdev = vio_create_one(hp, root, NULL);
if (!root_vdev) {
printk(KERN_ERR "VIO: Coult not create root device.\n");
return;
}
- walk_tree(root, root_vdev);
+ walk_tree(hp, root, root_vdev);
/* Domain services is odd as it doesn't sit underneath the
* channel-devices node, so we plug it in manually.
*/
- mp = md_find_node_by_name(NULL, "domain-services");
- if (mp) {
- struct vio_dev *parent = vio_create_one(mp, &root_vdev->dev);
+ mp = mdesc_node_by_name(hp, MDESC_NODE_NULL, "domain-services");
+ if (mp != MDESC_NODE_NULL) {
+ struct vio_dev *parent = vio_create_one(hp, mp,
+ &root_vdev->dev);
if (parent)
- walk_tree(mp, parent);
+ walk_tree(hp, mp, parent);
}
}
static int __init vio_init(void)
{
- struct mdesc_node *root;
+ struct mdesc_handle *hp;
const char *compat;
const u64 *cfg_handle;
int err, len;
+ u64 root;
+
+ hp = mdesc_grab();
+ if (!hp)
+ return 0;
- root = md_find_node_by_name(NULL, channel_devices_node);
- if (!root) {
+ root = mdesc_node_by_name(hp, MDESC_NODE_NULL, channel_devices_node);
+ if (root == MDESC_NODE_NULL) {
printk(KERN_INFO "VIO: No channel-devices MDESC node.\n");
+ mdesc_release(hp);
return 0;
}
cdev_node = of_find_node_by_name(NULL, "channel-devices");
+ err = -ENODEV;
if (!cdev_node) {
printk(KERN_INFO "VIO: No channel-devices OBP node.\n");
- return -ENODEV;
+ goto out_release;
}
- compat = md_get_property(root, "compatible", &len);
+ compat = mdesc_get_property(hp, root, "compatible", &len);
if (!compat) {
printk(KERN_ERR "VIO: Channel devices lacks compatible "
"property\n");
- return -ENODEV;
+ goto out_release;
}
if (!find_in_proplist(compat, channel_devices_compat, len)) {
printk(KERN_ERR "VIO: Channel devices node lacks (%s) "
"compat entry.\n", channel_devices_compat);
- return -ENODEV;
+ goto out_release;
}
- cfg_handle = md_get_property(root, cfg_handle_prop, NULL);
+ cfg_handle = mdesc_get_property(hp, root, cfg_handle_prop, NULL);
if (!cfg_handle) {
printk(KERN_ERR "VIO: Channel devices lacks %s property\n",
cfg_handle_prop);
- return -ENODEV;
+ goto out_release;
}
cdev_cfg_handle = *cfg_handle;
return err;
}
- create_devices(root);
+ create_devices(hp, root);
+
+ mdesc_release(hp);
return 0;
+
+out_release:
+ mdesc_release(hp);
+ return err;
}
postcore_initcall(vio_init);
projects / deliverable / linux.git / blobdiff