.mmap = page_map_mmap
};
-#ifdef CONFIG_PPC_PSERIES
-/* routines for /proc/ppc64/ofdt */
-static ssize_t ofdt_write(struct file *, const char __user *, size_t, loff_t *);
-static void proc_ppc64_create_ofdt(void);
-static int do_remove_node(char *);
-static int do_add_node(char *, size_t);
-static void release_prop_list(const struct property *);
-static struct property *new_property(const char *, const int, const unsigned char *, struct property *);
-static char * parse_next_property(char *, char *, char **, int *, unsigned char**);
-static struct file_operations ofdt_fops = {
- .write = ofdt_write
-};
-#endif
-
/*
* Create the ppc64 and ppc64/rtas directories early. This allows us to
* assume that they have been previously created in drivers.
return 1;
pde->nlink = 1;
pde->data = systemcfg;
- pde->size = 4096;
+ pde->size = PAGE_SIZE;
pde->proc_fops = &page_map_fops;
-#ifdef CONFIG_PPC_PSERIES
- if ((systemcfg->platform & PLATFORM_PSERIES))
- proc_ppc64_create_ofdt();
-#endif
-
return 0;
}
__initcall(proc_ppc64_init);
return 0;
}
-#ifdef CONFIG_PPC_PSERIES
-/* create /proc/ppc64/ofdt write-only by root */
-static void proc_ppc64_create_ofdt(void)
-{
- struct proc_dir_entry *ent;
-
- ent = create_proc_entry("ppc64/ofdt", S_IWUSR, NULL);
- if (ent) {
- ent->nlink = 1;
- ent->data = NULL;
- ent->size = 0;
- ent->proc_fops = &ofdt_fops;
- }
-}
-
-/**
- * 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
- rv = -EINVAL;
-out:
- kfree(kbuf);
- return rv ? rv : count;
-}
-
-static int do_remove_node(char *buf)
-{
- struct device_node *node;
- int rv = -ENODEV;
-
- if ((node = of_find_node_by_path(buf)))
- rv = of_remove_node(node);
-
- of_node_put(node);
- return rv;
-}
-
-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 = of_add_node(path, prop);
-
-out:
- if (rv)
- release_prop_list(prop);
- return rv;
-}
-
-static struct property *new_property(const char *name, const int length,
- const unsigned char *value, struct property *last)
-{
- struct property *new = kmalloc(sizeof(*new), GFP_KERNEL);
-
- if (!new)
- return NULL;
- memset(new, 0, sizeof(*new));
-
- if (!(new->name = kmalloc(strlen(name) + 1, GFP_KERNEL)))
- goto cleanup;
- if (!(new->value = kmalloc(length + 1, GFP_KERNEL)))
- goto cleanup;
-
- strcpy(new->name, name);
- memcpy(new->value, value, length);
- *(((char *)new->value) + length) = 0;
- new->length = length;
- new->next = last;
- return new;
-
-cleanup:
- if (new->name)
- kfree(new->name);
- if (new->value)
- kfree(new->value);
- kfree(new);
- return NULL;
-}
-
-/**
- * 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",
- __FUNCTION__, __LINE__);
- return NULL;
- }
- *tmp = '\0';
-
- if (++tmp >= end) {
- printk(KERN_ERR "property parse failed in %s at line %d\n",
- __FUNCTION__, __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",
- __FUNCTION__, __LINE__);
- return NULL;
- }
- if (*tmp != ' ' || ++tmp >= end) {
- printk(KERN_ERR "property parse failed in %s at line %d\n",
- __FUNCTION__, __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",
- __FUNCTION__, __LINE__);
- return NULL;
- }
- else if (tmp < end && *tmp != ' ' && *tmp != '\0') {
- printk(KERN_ERR "property parse failed in %s at line %d\n",
- __FUNCTION__, __LINE__);
- return NULL;
- }
- tmp++;
-
- /* and now we should be on the next name, or the end */
- return tmp;
-}
-
-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);
- }
-
-}
-#endif /* defined(CONFIG_PPC_PSERIES) */
git://git.onelab.eu / linux-2.6.git / blobdiff