static int __init export_htab_values(void)
{
struct device_node *node;
struct property *prop;
/* On machines with no htab htab_address is NULL */
if (!htab_address)
return -ENODEV;
node = of_find_node_by_path("/chosen");
if (!node)
return -ENODEV;
/* remove any stale propertys so ours can be found */
prop = of_find_property(node, htab_base_prop.name, NULL);
if (prop)
prom_remove_property(node, prop);
prop = of_find_property(node, htab_size_prop.name, NULL);
if (prop)
prom_remove_property(node, prop);
htab_base = __pa(htab_address);
prom_add_property(node, &htab_base_prop);
prom_add_property(node, &htab_size_prop);
of_node_put(node);
return 0;
}
static void __init export_crashk_values(void)
{
struct device_node *node;
struct property *prop;
node = of_find_node_by_path("/chosen");
if (!node)
return;
/* There might be existing crash kernel properties, but we can't
* be sure what's in them, so remove them. */
prop = of_find_property(node, "linux,crashkernel-base", NULL);
if (prop)
prom_remove_property(node, prop);
prop = of_find_property(node, "linux,crashkernel-size", NULL);
if (prop)
prom_remove_property(node, prop);
if (crashk_res.start != 0) {
prom_add_property(node, &crashk_base_prop);
crashk_size = crashk_res.end - crashk_res.start + 1;
prom_add_property(node, &crashk_size_prop);
}
of_node_put(node);
}
static void __init export_htab_values(void)
{
struct device_node *node;
struct property *prop;
node = of_find_node_by_path("/chosen");
if (!node)
return;
/* remove any stale propertys so ours can be found */
prop = of_find_property(node, kernel_end_prop.name, NULL);
if (prop)
prom_remove_property(node, prop);
prop = of_find_property(node, htab_base_prop.name, NULL);
if (prop)
prom_remove_property(node, prop);
prop = of_find_property(node, htab_size_prop.name, NULL);
if (prop)
prom_remove_property(node, prop);
/* information needed by userspace when using default_machine_kexec */
kernel_end = __pa(_end);
prom_add_property(node, &kernel_end_prop);
/* On machines with no htab htab_address is NULL */
if (NULL == htab_address)
goto out;
htab_base = __pa(htab_address);
prom_add_property(node, &htab_base_prop);
prom_add_property(node, &htab_size_prop);
out:
of_node_put(node);
}
static int update_dt_node(u32 phandle)
{
struct update_props_workarea *upwa;
struct device_node *dn;
struct property *prop = NULL;
int i, rc;
char *prop_data;
char *rtas_buf;
int update_properties_token;
update_properties_token = rtas_token("ibm,update-properties");
if (update_properties_token == RTAS_UNKNOWN_SERVICE)
return -EINVAL;
rtas_buf = kzalloc(RTAS_DATA_BUF_SIZE, GFP_KERNEL);
if (!rtas_buf)
return -ENOMEM;
dn = of_find_node_by_phandle(phandle);
if (!dn) {
kfree(rtas_buf);
return -ENOENT;
}
upwa = (struct update_props_workarea *)&rtas_buf[0];
upwa->phandle = phandle;
do {
rc = mobility_rtas_call(update_properties_token, rtas_buf);
if (rc < 0)
break;
prop_data = rtas_buf + sizeof(*upwa);
for (i = 0; i < upwa->nprops; i++) {
char *prop_name;
u32 vd;
prop_name = prop_data + 1;
prop_data += strlen(prop_name) + 1;
vd = *prop_data++;
switch (vd) {
case 0x00000000:
/* */
break;
case 0x80000000:
prop = of_find_property(dn, prop_name, NULL);
prom_remove_property(dn, prop);
prop = NULL;
break;
default:
rc = update_dt_property(dn, &prop, prop_name,
vd, prop_data);
if (rc) {
printk(KERN_ERR "Could not update %s"
" property\n", prop_name);
}
prop_data += vd;
}
}
} while (rc == 1);
of_node_put(dn);
kfree(rtas_buf);
return 0;
}
