summaryrefslogtreecommitdiff
path: root/arch/powerpc/platforms/pseries/reconfig.c
diff options
context:
space:
mode:
Diffstat (limited to 'arch/powerpc/platforms/pseries/reconfig.c')
-rw-r--r--arch/powerpc/platforms/pseries/reconfig.c119
1 files changed, 6 insertions, 113 deletions
diff --git a/arch/powerpc/platforms/pseries/reconfig.c b/arch/powerpc/platforms/pseries/reconfig.c
index 2f4668136b20..d6491bd481d0 100644
--- a/arch/powerpc/platforms/pseries/reconfig.c
+++ b/arch/powerpc/platforms/pseries/reconfig.c
@@ -16,55 +16,13 @@
#include <linux/notifier.h>
#include <linux/proc_fs.h>
#include <linux/slab.h>
+#include <linux/of.h>
#include <asm/prom.h>
#include <asm/machdep.h>
#include <asm/uaccess.h>
-#include <asm/pSeries_reconfig.h>
#include <asm/mmu.h>
-
-
-/*
- * Routines for "runtime" addition and removal of device tree nodes.
- */
-#ifdef CONFIG_PROC_DEVICETREE
-/*
- * Add a node to /proc/device-tree.
- */
-static void add_node_proc_entries(struct device_node *np)
-{
- struct proc_dir_entry *ent;
-
- ent = proc_mkdir(strrchr(np->full_name, '/') + 1, np->parent->pde);
- if (ent)
- proc_device_tree_add_node(np, ent);
-}
-
-static void remove_node_proc_entries(struct device_node *np)
-{
- struct property *pp = np->properties;
- struct device_node *parent = np->parent;
-
- while (pp) {
- remove_proc_entry(pp->name, np->pde);
- pp = pp->next;
- }
- if (np->pde)
- remove_proc_entry(np->pde->name, parent->pde);
-}
-#else /* !CONFIG_PROC_DEVICETREE */
-static void add_node_proc_entries(struct device_node *np)
-{
- return;
-}
-
-static void remove_node_proc_entries(struct device_node *np)
-{
- return;
-}
-#endif /* CONFIG_PROC_DEVICETREE */
-
/**
* derive_parent - basically like dirname(1)
* @path: the full_name of a node to be added to the tree
@@ -97,28 +55,6 @@ static struct device_node *derive_parent(const char *path)
return parent;
}
-static BLOCKING_NOTIFIER_HEAD(pSeries_reconfig_chain);
-
-int pSeries_reconfig_notifier_register(struct notifier_block *nb)
-{
- return blocking_notifier_chain_register(&pSeries_reconfig_chain, nb);
-}
-EXPORT_SYMBOL_GPL(pSeries_reconfig_notifier_register);
-
-void pSeries_reconfig_notifier_unregister(struct notifier_block *nb)
-{
- blocking_notifier_chain_unregister(&pSeries_reconfig_chain, nb);
-}
-EXPORT_SYMBOL_GPL(pSeries_reconfig_notifier_unregister);
-
-int pSeries_reconfig_notify(unsigned long action, void *p)
-{
- int err = blocking_notifier_call_chain(&pSeries_reconfig_chain,
- action, p);
-
- return notifier_to_errno(err);
-}
-
static int pSeries_reconfig_add_node(const char *path, struct property *proplist)
{
struct device_node *np;
@@ -142,16 +78,12 @@ static int pSeries_reconfig_add_node(const char *path, struct property *proplist
goto out_err;
}
- err = pSeries_reconfig_notify(PSERIES_RECONFIG_ADD, np);
+ err = of_attach_node(np);
if (err) {
printk(KERN_ERR "Failed to add device node %s\n", path);
goto out_err;
}
- of_attach_node(np);
-
- add_node_proc_entries(np);
-
of_node_put(np->parent);
return 0;
@@ -179,11 +111,7 @@ static int pSeries_reconfig_remove_node(struct device_node *np)
return -EBUSY;
}
- remove_node_proc_entries(np);
-
- pSeries_reconfig_notify(PSERIES_RECONFIG_REMOVE, np);
of_detach_node(np);
-
of_node_put(parent);
of_node_put(np); /* Must decrement the refcount */
return 0;
@@ -397,7 +325,7 @@ static int do_add_property(char *buf, size_t bufsize)
if (!prop)
return -ENOMEM;
- prom_add_property(np, prop);
+ of_add_property(np, prop);
return 0;
}
@@ -421,16 +349,15 @@ static int do_remove_property(char *buf, size_t bufsize)
prop = of_find_property(np, buf, NULL);
- return prom_remove_property(np, prop);
+ return of_remove_property(np, prop);
}
static int do_update_property(char *buf, size_t bufsize)
{
struct device_node *np;
- struct pSeries_reconfig_prop_update upd_value;
unsigned char *value;
char *name, *end, *next_prop;
- int rc, length;
+ int length;
struct property *newprop;
buf = parse_node(buf, bufsize, &np);
end = buf + bufsize;
@@ -452,41 +379,7 @@ static int do_update_property(char *buf, size_t bufsize)
if (!strcmp(name, "slb-size") || !strcmp(name, "ibm,slb-size"))
slb_set_size(*(int *)value);
- upd_value.node = np;
- upd_value.property = newprop;
- pSeries_reconfig_notify(PSERIES_UPDATE_PROPERTY, &upd_value);
-
- rc = prom_update_property(np, newprop);
- if (rc)
- return rc;
-
- /* For memory under the ibm,dynamic-reconfiguration-memory node
- * of the device tree, adding and removing memory is just an update
- * to the ibm,dynamic-memory property instead of adding/removing a
- * memory node in the device tree. For these cases we still need to
- * involve the notifier chain.
- */
- if (!strcmp(name, "ibm,dynamic-memory")) {
- int action;
-
- next_prop = parse_next_property(next_prop, end, &name,
- &length, &value);
- if (!next_prop)
- return -EINVAL;
-
- if (!strcmp(name, "add"))
- action = PSERIES_DRCONF_MEM_ADD;
- else
- action = PSERIES_DRCONF_MEM_REMOVE;
-
- rc = pSeries_reconfig_notify(action, value);
- if (rc) {
- prom_update_property(np, newprop);
- return rc;
- }
- }
-
- return 0;
+ return of_update_property(np, newprop);
}
/**