[mirror_ubuntu-artful-kernel.git] / arch / powerpc / platforms / pseries / reconfig.c

/*
 * pSeries_reconfig.c - support for dynamic reconfiguration (including PCI
 * Hotplug and Dynamic Logical Partitioning on RPA platforms).
 *
 * Copyright (C) 2005 Nathan Lynch
 * Copyright (C) 2005 IBM Corporation
 *
 *
 *	This program is free software; you can redistribute it and/or
 *	modify it under the terms of the GNU General Public License version
 *	2 as published by the Free Software Foundation.
 */

#include <linux/kernel.h>
#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 <linux/uaccess.h>
#include <asm/mmu.h>

#include "of_helpers.h"

static int pSeries_reconfig_add_node(const char *path, struct property *proplist)
{
	struct device_node *np;
	int err = -ENOMEM;

	np = kzalloc(sizeof(*np), GFP_KERNEL);
	if (!np)
		goto out_err;

	np->full_name = kstrdup(path, GFP_KERNEL);
	if (!np->full_name)
		goto out_err;

	np->properties = proplist;
	of_node_set_flag(np, OF_DYNAMIC);
	of_node_init(np);

	np->parent = pseries_of_derive_parent(path);
	if (IS_ERR(np->parent)) {
		err = PTR_ERR(np->parent);
		goto out_err;
	}

	err = of_attach_node(np);
	if (err) {
		printk(KERN_ERR "Failed to add device node %s\n", path);
		goto out_err;
	}

	of_node_put(np->parent);

	return 0;

out_err:
	if (np) {
		of_node_put(np->parent);
		kfree(np->full_name);
		kfree(np);
	}
	return err;
}

static int pSeries_reconfig_remove_node(struct device_node *np)
{
	struct device_node *parent, *child;

	parent = of_get_parent(np);
	if (!parent)
		return -EINVAL;

	if ((child = of_get_next_child(np, NULL))) {
		of_node_put(child);
		of_node_put(parent);
		return -EBUSY;
	}

	of_detach_node(np);
	of_node_put(parent);
	return 0;
}

/*
 * /proc/powerpc/ofdt - yucky binary interface for adding and removing
 * OF device nodes.  Should be deprecated as soon as we get an
 * in-kernel wrapper for the RTAS ibm,configure-connector call.
 */

static void release_prop_list(const struct property *prop)
{
	struct property *next;
	for (; prop; prop = next) {
		next = prop->next;
		kfree(prop->name);
		kfree(prop->value);
		kfree(prop);
	}

}

/**
 * parse_next_property - process the next property from raw input buffer
 * @buf: input buffer, must be nul-terminated
 * @end: end of the input buffer + 1, for validation
 * @name: return value; set to property name in buf
 * @length: return value; set to length of value
 * @value: return value; set to the property value in buf
 *
 * Note that the caller must make copies of the name and value returned,
 * this function does no allocation or copying of the data.  Return value
 * is set to the next name in buf, or NULL on error.
 */
static char * parse_next_property(char *buf, char *end, char **name, int *length,
				  unsigned char **value)
{
	char *tmp;

	*name = buf;

	tmp = strchr(buf, ' ');
	if (!tmp) {
		printk(KERN_ERR "property parse failed in %s at line %d\n",
		       __func__, __LINE__);
		return NULL;
	}
	*tmp = '\0';

	if (++tmp >= end) {
		printk(KERN_ERR "property parse failed in %s at line %d\n",
		       __func__, __LINE__);
		return NULL;
	}

	/* now we're on the length */
	*length = -1;
	*length = simple_strtoul(tmp, &tmp, 10);
	if (*length == -1) {
		printk(KERN_ERR "property parse failed in %s at line %d\n",
		       __func__, __LINE__);
		return NULL;
	}
	if (*tmp != ' ' || ++tmp >= end) {
		printk(KERN_ERR "property parse failed in %s at line %d\n",
		       __func__, __LINE__);
		return NULL;
	}

	/* now we're on the value */
	*value = tmp;
	tmp += *length;
	if (tmp > end) {
		printk(KERN_ERR "property parse failed in %s at line %d\n",
		       __func__, __LINE__);
		return NULL;
	}
	else if (tmp < end && *tmp != ' ' && *tmp != '\0') {
		printk(KERN_ERR "property parse failed in %s at line %d\n",
		       __func__, __LINE__);
		return NULL;
	}
	tmp++;

	/* and now we should be on the next name, or the end */
	return tmp;
}

static struct property *new_property(const char *name, const int length,
				     const unsigned char *value, struct property *last)
{
	struct property *new = kzalloc(sizeof(*new), GFP_KERNEL);

	if (!new)
		return NULL;

	if (!(new->name = kstrdup(name, GFP_KERNEL)))
		goto cleanup;
	if (!(new->value = kmalloc(length + 1, GFP_KERNEL)))
		goto cleanup;

	memcpy(new->value, value, length);
	*(((char *)new->value) + length) = 0;
	new->length = length;
	new->next = last;
	return new;

cleanup:
	kfree(new->name);
	kfree(new->value);
	kfree(new);
	return NULL;
}

static int do_add_node(char *buf, size_t bufsize)
{
	char *path, *end, *name;
	struct device_node *np;
	struct property *prop = NULL;
	unsigned char* value;
	int length, rv = 0;

	end = buf + bufsize;
	path = buf;
	buf = strchr(buf, ' ');
	if (!buf)
		return -EINVAL;
	*buf = '\0';
	buf++;

	if ((np = of_find_node_by_path(path))) {
		of_node_put(np);
		return -EINVAL;
	}

	/* rv = build_prop_list(tmp, bufsize - (tmp - buf), &proplist); */
	while (buf < end &&
	       (buf = parse_next_property(buf, end, &name, &length, &value))) {
		struct property *last = prop;

		prop = new_property(name, length, value, last);
		if (!prop) {
			rv = -ENOMEM;
			prop = last;
			goto out;
		}
	}
	if (!buf) {
		rv = -EINVAL;
		goto out;
	}

	rv = pSeries_reconfig_add_node(path, prop);

out:
	if (rv)
		release_prop_list(prop);
	return rv;
}

static int do_remove_node(char *buf)
{
	struct device_node *node;
	int rv = -ENODEV;

	if ((node = of_find_node_by_path(buf)))
		rv = pSeries_reconfig_remove_node(node);

	of_node_put(node);
	return rv;
}

static char *parse_node(char *buf, size_t bufsize, struct device_node **npp)
{
	char *handle_str;
	phandle handle;
	*npp = NULL;

	handle_str = buf;

	buf = strchr(buf, ' ');
	if (!buf)
		return NULL;
	*buf = '\0';
	buf++;

	handle = simple_strtoul(handle_str, NULL, 0);

	*npp = of_find_node_by_phandle(handle);
	return buf;
}

static int do_add_property(char *buf, size_t bufsize)
{
	struct property *prop = NULL;
	struct device_node *np;
	unsigned char *value;
	char *name, *end;
	int length;
	end = buf + bufsize;
	buf = parse_node(buf, bufsize, &np);

	if (!np)
		return -ENODEV;

	if (parse_next_property(buf, end, &name, &length, &value) == NULL)
		return -EINVAL;

	prop = new_property(name, length, value, NULL);
	if (!prop)
		return -ENOMEM;

	of_add_property(np, prop);

	return 0;
}

static int do_remove_property(char *buf, size_t bufsize)
{
	struct device_node *np;
	char *tmp;
	buf = parse_node(buf, bufsize, &np);

	if (!np)
		return -ENODEV;

	tmp = strchr(buf,' ');
	if (tmp)
		*tmp = '\0';

	if (strlen(buf) == 0)
		return -EINVAL;

	return of_remove_property(np, of_find_property(np, buf, NULL));
}

static int do_update_property(char *buf, size_t bufsize)
{
	struct device_node *np;
	unsigned char *value;
	char *name, *end, *next_prop;
	int length;
	struct property *newprop;
	buf = parse_node(buf, bufsize, &np);
	end = buf + bufsize;

	if (!np)
		return -ENODEV;

	next_prop = parse_next_property(buf, end, &name, &length, &value);
	if (!next_prop)
		return -EINVAL;

	if (!strlen(name))
		return -ENODEV;

	newprop = new_property(name, length, value, NULL);
	if (!newprop)
		return -ENOMEM;

	if (!strcmp(name, "slb-size") || !strcmp(name, "ibm,slb-size"))
		slb_set_size(*(int *)value);

	return of_update_property(np, newprop);
}

/**
 * ofdt_write - perform operations on the Open Firmware device tree
 *
 * @file: not used
 * @buf: command and arguments
 * @count: size of the command buffer
 * @off: not used
 *
 * Operations supported at this time are addition and removal of
 * whole nodes along with their properties.  Operations on individual
 * properties are not implemented (yet).
 */
static ssize_t ofdt_write(struct file *file, const char __user *buf, size_t count,
			  loff_t *off)
{
	int rv = 0;
	char *kbuf;
	char *tmp;

	if (!(kbuf = kmalloc(count + 1, GFP_KERNEL))) {
		rv = -ENOMEM;
		goto out;
	}
	if (copy_from_user(kbuf, buf, count)) {
		rv = -EFAULT;
		goto out;
	}

	kbuf[count] = '\0';

	tmp = strchr(kbuf, ' ');
	if (!tmp) {
		rv = -EINVAL;
		goto out;
	}
	*tmp = '\0';
	tmp++;

	if (!strcmp(kbuf, "add_node"))
		rv = do_add_node(tmp, count - (tmp - kbuf));
	else if (!strcmp(kbuf, "remove_node"))
		rv = do_remove_node(tmp);
	else if (!strcmp(kbuf, "add_property"))
		rv = do_add_property(tmp, count - (tmp - kbuf));
	else if (!strcmp(kbuf, "remove_property"))
		rv = do_remove_property(tmp, count - (tmp - kbuf));
	else if (!strcmp(kbuf, "update_property"))
		rv = do_update_property(tmp, count - (tmp - kbuf));
	else
		rv = -EINVAL;
out:
	kfree(kbuf);
	return rv ? rv : count;
}

static const struct file_operations ofdt_fops = {
	.write = ofdt_write,
	.llseek = noop_llseek,
};

/* create /proc/powerpc/ofdt write-only by root */
static int proc_ppc64_create_ofdt(void)
{
	struct proc_dir_entry *ent;

	ent = proc_create("powerpc/ofdt", S_IWUSR, NULL, &ofdt_fops);
	if (ent)
		proc_set_size(ent, 0);

	return 0;
}
machine_device_initcall(pseries, proc_ppc64_create_ofdt);
Commit	Line	Data
1da177e4 LT	1	/*
	2	* pSeries_reconfig.c - support for dynamic reconfiguration (including PCI
	3	* Hotplug and Dynamic Logical Partitioning on RPA platforms).
	4	*
	5	* Copyright (C) 2005 Nathan Lynch
	6	* Copyright (C) 2005 IBM Corporation
	7	*
	8	*
	9	* This program is free software; you can redistribute it and/or
	10	* modify it under the terms of the GNU General Public License version
	11	* 2 as published by the Free Software Foundation.
	12	*/
	13
	14	#include <linux/kernel.h>
1da177e4 LT	15	#include <linux/notifier.h>
1da177e4 LT	16	#include <linux/proc_fs.h>
5a0e3ad6	17	#include <linux/slab.h>
1cf3d8b3	18	#include <linux/of.h>
1da177e4 LT	19
1da177e4 LT	20	#include <asm/prom.h>
e8222502	21	#include <asm/machdep.h>
7c0f6ba6	22	#include <linux/uaccess.h>
46db2f86	23	#include <asm/mmu.h>
1da177e4	24
948ad1ac	25	#include "of_helpers.h"
1da177e4	26
1da177e4 LT	27	static int pSeries_reconfig_add_node(const char path, struct property proplist)
	28	{
	29	struct device_node *np;
	30	int err = -ENOMEM;
	31
874ca6cd	32	np = kzalloc(sizeof(*np), GFP_KERNEL);
1da177e4 LT	33	if (!np)
	34	goto out_err;
	35
74052173	36	np->full_name = kstrdup(path, GFP_KERNEL);
1da177e4 LT	37	if (!np->full_name)
	38	goto out_err;
	39
1da177e4	40	np->properties = proplist;
d3b814bb	41	of_node_set_flag(np, OF_DYNAMIC);
97a9a717	42	of_node_init(np);
1da177e4	43
948ad1ac	44	np->parent = pseries_of_derive_parent(path);
1da177e4 LT	45	if (IS_ERR(np->parent)) {
	46	err = PTR_ERR(np->parent);
	47	goto out_err;
	48	}
	49
1cf3d8b3	50	err = of_attach_node(np);
3aef19f0	51	if (err) {
1da177e4	52	printk(KERN_ERR "Failed to add device node %s\n", path);
1da177e4 LT	53	goto out_err;
	54	}
	55
1da177e4 LT	56	of_node_put(np->parent);
	57
	58	return 0;
	59
	60	out_err:
	61	if (np) {
	62	of_node_put(np->parent);
	63	kfree(np->full_name);
	64	kfree(np);
	65	}
	66	return err;
	67	}
	68
	69	static int pSeries_reconfig_remove_node(struct device_node *np)
	70	{
	71	struct device_node parent, child;
	72
	73	parent = of_get_parent(np);
	74	if (!parent)
	75	return -EINVAL;
	76
	77	if ((child = of_get_next_child(np, NULL))) {
	78	of_node_put(child);
842decbd	79	of_node_put(parent);
1da177e4 LT	80	return -EBUSY;
	81	}
	82
1da177e4	83	of_detach_node(np);
1da177e4	84	of_node_put(parent);
1da177e4 LT	85	return 0;
	86	}
	87
	88	/*
188917e1	89	* /proc/powerpc/ofdt - yucky binary interface for adding and removing
1da177e4 LT	90	* OF device nodes. Should be deprecated as soon as we get an
	91	* in-kernel wrapper for the RTAS ibm,configure-connector call.
	92	*/
	93
	94	static void release_prop_list(const struct property *prop)
	95	{
	96	struct property *next;
	97	for (; prop; prop = next) {
	98	next = prop->next;
	99	kfree(prop->name);
	100	kfree(prop->value);
	101	kfree(prop);
	102	}
	103
	104	}
	105
	106	/**
	107	* parse_next_property - process the next property from raw input buffer
	108	* @buf: input buffer, must be nul-terminated
	109	* @end: end of the input buffer + 1, for validation
	110	* @name: return value; set to property name in buf
	111	* @length: return value; set to length of value
	112	* @value: return value; set to the property value in buf
	113	*
	114	* Note that the caller must make copies of the name and value returned,
	115	* this function does no allocation or copying of the data. Return value
	116	* is set to the next name in buf, or NULL on error.
	117	*/
	118	static char * parse_next_property(char buf, char end, char *name, int length,
	119	unsigned char **value)
	120	{
	121	char *tmp;
	122
	123	*name = buf;
	124
	125	tmp = strchr(buf, ' ');
	126	if (!tmp) {
	127	printk(KERN_ERR "property parse failed in %s at line %d\n",
e48b1b45	128	__func__, __LINE__);
1da177e4 LT	129	return NULL;
	130	}
	131	*tmp = '\0';
	132
	133	if (++tmp >= end) {
	134	printk(KERN_ERR "property parse failed in %s at line %d\n",
e48b1b45	135	__func__, __LINE__);
1da177e4 LT	136	return NULL;
	137	}
	138
	139	/* now we're on the length */
	140	*length = -1;
	141	*length = simple_strtoul(tmp, &tmp, 10);
	142	if (*length == -1) {
	143	printk(KERN_ERR "property parse failed in %s at line %d\n",
e48b1b45	144	__func__, __LINE__);
1da177e4 LT	145	return NULL;
	146	}
	147	if (*tmp != ' ' \|\| ++tmp >= end) {
	148	printk(KERN_ERR "property parse failed in %s at line %d\n",
e48b1b45	149	__func__, __LINE__);
1da177e4 LT	150	return NULL;
	151	}
	152
	153	/* now we're on the value */
	154	*value = tmp;
	155	tmp += *length;
	156	if (tmp > end) {
	157	printk(KERN_ERR "property parse failed in %s at line %d\n",
e48b1b45	158	__func__, __LINE__);
1da177e4 LT	159	return NULL;
	160	}
	161	else if (tmp < end && tmp != ' ' && tmp != '\0') {
	162	printk(KERN_ERR "property parse failed in %s at line %d\n",
e48b1b45	163	__func__, __LINE__);
1da177e4 LT	164	return NULL;
	165	}
	166	tmp++;
	167
	168	/* and now we should be on the next name, or the end */
	169	return tmp;
	170	}
	171
	172	static struct property new_property(const char name, const int length,
	173	const unsigned char value, struct property last)
	174	{
f8485350	175	struct property new = kzalloc(sizeof(new), GFP_KERNEL);
1da177e4 LT	176
	177	if (!new)
	178	return NULL;
1da177e4	179
c22618a1	180	if (!(new->name = kstrdup(name, GFP_KERNEL)))
1da177e4 LT	181	goto cleanup;
	182	if (!(new->value = kmalloc(length + 1, GFP_KERNEL)))
	183	goto cleanup;
	184
1da177e4 LT	185	memcpy(new->value, value, length);
	186	(((char )new->value) + length) = 0;
	187	new->length = length;
	188	new->next = last;
	189	return new;
	190
	191	cleanup:
b2325fe1 JJ	192	kfree(new->name);
b2325fe1 JJ	193	kfree(new->value);
1da177e4 LT	194	kfree(new);
	195	return NULL;
	196	}
	197
	198	static int do_add_node(char *buf, size_t bufsize)
	199	{
	200	char path, end, *name;
	201	struct device_node *np;
	202	struct property *prop = NULL;
	203	unsigned char* value;
	204	int length, rv = 0;
	205
	206	end = buf + bufsize;
	207	path = buf;
	208	buf = strchr(buf, ' ');
	209	if (!buf)
	210	return -EINVAL;
	211	*buf = '\0';
	212	buf++;
	213
	214	if ((np = of_find_node_by_path(path))) {
	215	of_node_put(np);
	216	return -EINVAL;
	217	}
	218
	219	/* rv = build_prop_list(tmp, bufsize - (tmp - buf), &proplist); */
	220	while (buf < end &&
	221	(buf = parse_next_property(buf, end, &name, &length, &value))) {
	222	struct property *last = prop;
	223
	224	prop = new_property(name, length, value, last);
	225	if (!prop) {
	226	rv = -ENOMEM;
	227	prop = last;
	228	goto out;
	229	}
	230	}
	231	if (!buf) {
	232	rv = -EINVAL;
	233	goto out;
	234	}
	235
	236	rv = pSeries_reconfig_add_node(path, prop);
	237
	238	out:
	239	if (rv)
	240	release_prop_list(prop);
	241	return rv;
	242	}
	243
	244	static int do_remove_node(char *buf)
	245	{
	246	struct device_node *node;
	247	int rv = -ENODEV;
	248
	249	if ((node = of_find_node_by_path(buf)))
	250	rv = pSeries_reconfig_remove_node(node);
	251
	252	of_node_put(node);
	253	return rv;
	254	}
	255
610d9151 DB	256	static char parse_node(char buf, size_t bufsize, struct device_node **npp)
	257	{
	258	char *handle_str;
	259	phandle handle;
	260	*npp = NULL;
	261
	262	handle_str = buf;
	263
	264	buf = strchr(buf, ' ');
	265	if (!buf)
	266	return NULL;
	267	*buf = '\0';
	268	buf++;
	269
4b6e805e	270	handle = simple_strtoul(handle_str, NULL, 0);
610d9151 DB	271
	272	*npp = of_find_node_by_phandle(handle);
	273	return buf;
	274	}
	275
	276	static int do_add_property(char *buf, size_t bufsize)
	277	{
	278	struct property *prop = NULL;
	279	struct device_node *np;
	280	unsigned char *value;
	281	char name, end;
	282	int length;
	283	end = buf + bufsize;
	284	buf = parse_node(buf, bufsize, &np);
	285
	286	if (!np)
	287	return -ENODEV;
	288
	289	if (parse_next_property(buf, end, &name, &length, &value) == NULL)
	290	return -EINVAL;
	291
	292	prop = new_property(name, length, value, NULL);
	293	if (!prop)
	294	return -ENOMEM;
	295
79d1c712	296	of_add_property(np, prop);
610d9151 DB	297
	298	return 0;
	299	}
	300
	301	static int do_remove_property(char *buf, size_t bufsize)
	302	{
	303	struct device_node *np;
	304	char *tmp;
610d9151 DB	305	buf = parse_node(buf, bufsize, &np);
	306
	307	if (!np)
	308	return -ENODEV;
	309
	310	tmp = strchr(buf,' ');
	311	if (tmp)
	312	*tmp = '\0';
	313
	314	if (strlen(buf) == 0)
	315	return -EINVAL;
	316
925e2d1d	317	return of_remove_property(np, of_find_property(np, buf, NULL));
610d9151 DB	318	}
	319
	320	static int do_update_property(char *buf, size_t bufsize)
	321	{
	322	struct device_node *np;
	323	unsigned char *value;
3c3f67ea	324	char name, end, *next_prop;
1cf3d8b3	325	int length;
475d0094	326	struct property *newprop;
610d9151 DB	327	buf = parse_node(buf, bufsize, &np);
	328	end = buf + bufsize;
	329
	330	if (!np)
	331	return -ENODEV;
	332
3c3f67ea NF	333	next_prop = parse_next_property(buf, end, &name, &length, &value);
3c3f67ea NF	334	if (!next_prop)
610d9151 DB	335	return -EINVAL;
610d9151 DB	336
475d0094 DA	337	if (!strlen(name))
	338	return -ENODEV;
	339
610d9151 DB	340	newprop = new_property(name, length, value, NULL);
	341	if (!newprop)
	342	return -ENOMEM;
	343
46db2f86 BK	344	if (!strcmp(name, "slb-size") \|\| !strcmp(name, "ibm,slb-size"))
	345	slb_set_size((int )value);
	346
79d1c712	347	return of_update_property(np, newprop);
610d9151 DB	348	}
610d9151 DB	349
1da177e4 LT	350	/**
	351	* ofdt_write - perform operations on the Open Firmware device tree
	352	*
	353	* @file: not used
	354	* @buf: command and arguments
	355	* @count: size of the command buffer
	356	* @off: not used
	357	*
	358	* Operations supported at this time are addition and removal of
	359	* whole nodes along with their properties. Operations on individual
	360	* properties are not implemented (yet).
	361	*/
	362	static ssize_t ofdt_write(struct file file, const char __user buf, size_t count,
	363	loff_t *off)
	364	{
	365	int rv = 0;
	366	char *kbuf;
	367	char *tmp;
	368
	369	if (!(kbuf = kmalloc(count + 1, GFP_KERNEL))) {
	370	rv = -ENOMEM;
	371	goto out;
	372	}
	373	if (copy_from_user(kbuf, buf, count)) {
	374	rv = -EFAULT;
	375	goto out;
	376	}
	377
	378	kbuf[count] = '\0';
	379
	380	tmp = strchr(kbuf, ' ');
	381	if (!tmp) {
	382	rv = -EINVAL;
	383	goto out;
	384	}
	385	*tmp = '\0';
	386	tmp++;
	387
	388	if (!strcmp(kbuf, "add_node"))
	389	rv = do_add_node(tmp, count - (tmp - kbuf));
	390	else if (!strcmp(kbuf, "remove_node"))
	391	rv = do_remove_node(tmp);
610d9151 DB	392	else if (!strcmp(kbuf, "add_property"))
	393	rv = do_add_property(tmp, count - (tmp - kbuf));
	394	else if (!strcmp(kbuf, "remove_property"))
	395	rv = do_remove_property(tmp, count - (tmp - kbuf));
	396	else if (!strcmp(kbuf, "update_property"))
	397	rv = do_update_property(tmp, count - (tmp - kbuf));
1da177e4 LT	398	else
	399	rv = -EINVAL;
	400	out:
	401	kfree(kbuf);
	402	return rv ? rv : count;
	403	}
	404
5dfe4c96	405	static const struct file_operations ofdt_fops = {
6038f373 AB	406	.write = ofdt_write,
6038f373 AB	407	.llseek = noop_llseek,
1da177e4 LT	408	};
1da177e4 LT	409
188917e1	410	/* create /proc/powerpc/ofdt write-only by root */
1da177e4 LT	411	static int proc_ppc64_create_ofdt(void)
	412	{
	413	struct proc_dir_entry *ent;
	414
188917e1	415	ent = proc_create("powerpc/ofdt", S_IWUSR, NULL, &ofdt_fops);
66747138	416	if (ent)
271a15ea	417	proc_set_size(ent, 0);
1da177e4 LT	418
	419	return 0;
	420	}
8e83e905	421	machine_device_initcall(pseries, proc_ppc64_create_ofdt);