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Diffstat (limited to 'arch/powerpc/kernel/vio.c')
-rw-r--r--arch/powerpc/kernel/vio.c44
1 files changed, 34 insertions, 10 deletions
diff --git a/arch/powerpc/kernel/vio.c b/arch/powerpc/kernel/vio.c
index 82237176a2a3..00b9436f7652 100644
--- a/arch/powerpc/kernel/vio.c
+++ b/arch/powerpc/kernel/vio.c
@@ -645,8 +645,10 @@ void vio_cmo_set_dev_desired(struct vio_dev *viodev, size_t desired)
found = 1;
break;
}
- if (!found)
+ if (!found) {
+ spin_unlock_irqrestore(&vio_cmo.lock, flags);
return;
+ }
/* Increase/decrease in desired device entitlement */
if (desired >= viodev->cmo.desired) {
@@ -705,7 +707,7 @@ static int vio_cmo_bus_probe(struct vio_dev *viodev)
* Check to see that device has a DMA window and configure
* entitlement for the device.
*/
- if (of_get_property(viodev->dev.archdata.of_node,
+ if (of_get_property(viodev->dev.of_node,
"ibm,my-dma-window", NULL)) {
/* Check that the driver is CMO enabled and get desired DMA */
if (!viodrv->get_desired_dma) {
@@ -958,9 +960,12 @@ viodev_cmo_rd_attr(allocated);
static ssize_t name_show(struct device *, struct device_attribute *, char *);
static ssize_t devspec_show(struct device *, struct device_attribute *, char *);
+static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
+ char *buf);
static struct device_attribute vio_cmo_dev_attrs[] = {
__ATTR_RO(name),
__ATTR_RO(devspec),
+ __ATTR_RO(modalias),
__ATTR(cmo_desired, S_IWUSR|S_IRUSR|S_IWGRP|S_IRGRP|S_IROTH,
viodev_cmo_desired_show, viodev_cmo_desired_set),
__ATTR(cmo_entitled, S_IRUGO, viodev_cmo_entitled_show, NULL),
@@ -1049,7 +1054,7 @@ static struct iommu_table *vio_build_iommu_table(struct vio_dev *dev)
if (firmware_has_feature(FW_FEATURE_ISERIES))
return vio_build_iommu_table_iseries(dev);
- dma_window = of_get_property(dev->dev.archdata.of_node,
+ dma_window = of_get_property(dev->dev.of_node,
"ibm,my-dma-window", NULL);
if (!dma_window)
return NULL;
@@ -1058,7 +1063,7 @@ static struct iommu_table *vio_build_iommu_table(struct vio_dev *dev)
if (tbl == NULL)
return NULL;
- of_parse_dma_window(dev->dev.archdata.of_node, dma_window,
+ of_parse_dma_window(dev->dev.of_node, dma_window,
&tbl->it_index, &offset, &size);
/* TCE table size - measured in tce entries */
@@ -1086,7 +1091,7 @@ static const struct vio_device_id *vio_match_device(
{
while (ids->type[0] != '\0') {
if ((strncmp(dev->type, ids->type, strlen(ids->type)) == 0) &&
- of_device_is_compatible(dev->dev.archdata.of_node,
+ of_device_is_compatible(dev->dev.of_node,
ids->compat))
return ids;
ids++;
@@ -1179,7 +1184,7 @@ EXPORT_SYMBOL(vio_unregister_driver);
static void __devinit vio_dev_release(struct device *dev)
{
/* XXX should free TCE table */
- of_node_put(dev->archdata.of_node);
+ of_node_put(dev->of_node);
kfree(to_vio_dev(dev));
}
@@ -1230,7 +1235,7 @@ struct vio_dev *vio_register_device_node(struct device_node *of_node)
if (unit_address != NULL)
viodev->unit_address = *unit_address;
}
- viodev->dev.archdata.of_node = of_node_get(of_node);
+ viodev->dev.of_node = of_node_get(of_node);
if (firmware_has_feature(FW_FEATURE_CMO))
vio_cmo_set_dma_ops(viodev);
@@ -1315,14 +1320,32 @@ static ssize_t name_show(struct device *dev,
static ssize_t devspec_show(struct device *dev,
struct device_attribute *attr, char *buf)
{
- struct device_node *of_node = dev->archdata.of_node;
+ struct device_node *of_node = dev->of_node;
return sprintf(buf, "%s\n", of_node ? of_node->full_name : "none");
}
+static ssize_t modalias_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ const struct vio_dev *vio_dev = to_vio_dev(dev);
+ struct device_node *dn;
+ const char *cp;
+
+ dn = dev->of_node;
+ if (!dn)
+ return -ENODEV;
+ cp = of_get_property(dn, "compatible", NULL);
+ if (!cp)
+ return -ENODEV;
+
+ return sprintf(buf, "vio:T%sS%s\n", vio_dev->type, cp);
+}
+
static struct device_attribute vio_dev_attrs[] = {
__ATTR_RO(name),
__ATTR_RO(devspec),
+ __ATTR_RO(modalias),
__ATTR_NULL
};
@@ -1347,7 +1370,7 @@ static int vio_hotplug(struct device *dev, struct kobj_uevent_env *env)
struct device_node *dn;
const char *cp;
- dn = dev->archdata.of_node;
+ dn = dev->of_node;
if (!dn)
return -ENODEV;
cp = of_get_property(dn, "compatible", NULL);
@@ -1365,6 +1388,7 @@ static struct bus_type vio_bus_type = {
.match = vio_bus_match,
.probe = vio_bus_probe,
.remove = vio_bus_remove,
+ .pm = GENERIC_SUBSYS_PM_OPS,
};
/**
@@ -1378,7 +1402,7 @@ static struct bus_type vio_bus_type = {
*/
const void *vio_get_attribute(struct vio_dev *vdev, char *which, int *length)
{
- return of_get_property(vdev->dev.archdata.of_node, which, length);
+ return of_get_property(vdev->dev.of_node, which, length);
}
EXPORT_SYMBOL(vio_get_attribute);