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authorJeremy Kerr <jk@ozlabs.org>2006-05-01 12:16:12 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2006-05-01 18:17:46 -0700
commit953039c8df7beb2694814e20e2707a77d335a2e3 (patch)
tree8e8d6af92441d70074efc24f55cf5965ae28447a /arch/powerpc/kernel/sysfs.c
parentbed120c64eb07b6838bb758109811484af8cebba (diff)
downloadlinux-stericsson-953039c8df7beb2694814e20e2707a77d335a2e3.tar.gz
[PATCH] powerpc: Allow devices to register with numa topology
Change of_node_to_nid() to traverse the device tree, looking for a numa id. Cell uses this to assign ids to SPUs, which are children of the CPU node. Existing users of of_node_to_nid() are altered to use of_node_to_nid_single(), which doesn't do the traversal. Export an attach_sysdev_to_node() function, allowing system devices (eg. SPUs) to link themselves into the numa topology in sysfs. Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'arch/powerpc/kernel/sysfs.c')
-rw-r--r--arch/powerpc/kernel/sysfs.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/sysfs.c b/arch/powerpc/kernel/sysfs.c
index ed737cacf92d..5bc2585c8036 100644
--- a/arch/powerpc/kernel/sysfs.c
+++ b/arch/powerpc/kernel/sysfs.c
@@ -322,13 +322,31 @@ static void register_nodes(void)
}
}
}
+
+int sysfs_add_device_to_node(struct sys_device *dev, int nid)
+{
+ struct node *node = &node_devices[nid];
+ return sysfs_create_link(&node->sysdev.kobj, &dev->kobj,
+ kobject_name(&dev->kobj));
+}
+
+void sysfs_remove_device_from_node(struct sys_device *dev, int nid)
+{
+ struct node *node = &node_devices[nid];
+ sysfs_remove_link(&node->sysdev.kobj, kobject_name(&dev->kobj));
+}
+
#else
static void register_nodes(void)
{
return;
}
+
#endif
+EXPORT_SYMBOL_GPL(sysfs_add_device_to_node);
+EXPORT_SYMBOL_GPL(sysfs_remove_device_from_node);
+
/* Only valid if CPU is present. */
static ssize_t show_physical_id(struct sys_device *dev, char *buf)
{