[POWERPC] cell: add support for registering sysfs attributes to spus

In order to add sysfs attributes to all spu's, there is a
need for a list of all available spu's. Adding the device_node
makes also sense, as it is needed for proper register access.
This patch also adds two functions to create and remove sysfs
attributes and attribute_groups to all spus.
That allows to group spu attributes in a subdirectory like:
/sys/devices/system/spu/spuX/group_name/what_ever
This will be used by cbe_thermal to group all attributes dealing with
thermal support in one directory.

Signed-off-by: Christian Krafft <krafft@de.ibm.com>
Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

1 files changed, 9 insertions, 0 deletions

diff --git a/include/asm-powerpc/spu.h b/include/asm-powerpc/spu.h
index 704e8a8d2ebd..ffa4df083609 100644
--- a/include/asm-powerpc/spu.h
+++ b/include/asm-powerpc/spu.h
@@ -115,6 +115,7 @@ struct spu {
         struct spu_priv2 __iomem *priv2;
         struct list_head list;
         struct list_head sched_list;
+        struct list_head full_list;
         int number;
         int nid;
         unsigned int irqs[3];
@@ -143,6 +144,8 @@ struct spu {
         char irq_c1[8];
         char irq_c2[8];
 
+        struct device_node *devnode;
+
         struct sys_device sysdev;
 };
 
@@ -200,6 +203,12 @@ static inline void unregister_spu_syscalls(struct spufs_calls *calls)
 }
 #endif /* MODULE */
 
+int spu_add_sysdev_attr(struct sysdev_attribute *attr);
+void spu_remove_sysdev_attr(struct sysdev_attribute *attr);
+
+int spu_add_sysdev_attr_group(struct attribute_group *attrs);
+void spu_remove_sysdev_attr_group(struct attribute_group *attrs);
+
 
 /*
  * Notifier blocks: