1 // SPDX-License-Identifier: GPL-2.0-only
49 #define PRRN_SCOPE -2
104 	is_platfac = of_node_is_type(dn, "ibm,platform-facilities") ||  in delete_dt_node()
105 		     of_node_is_type(pdn, "ibm,platform-facilities");  in delete_dt_node()
109 	 * The drivers that bind to nodes in the platform-facilities  in delete_dt_node()
134 	 * ibm,update-properties again to get the rest of the value.  in update_dt_property()
145 		char *new_data = kzalloc(new_prop->length + vd, GFP_KERNEL);  in update_dt_property()
147 			return -ENOMEM;  in update_dt_property()
149 		memcpy(new_data, new_prop->value, new_prop->length);  in update_dt_property()
150 		memcpy(new_data + new_prop->length, value, vd);  in update_dt_property()
152 		kfree(new_prop->value);  in update_dt_property()
153 		new_prop->value = new_data;  in update_dt_property()
154 		new_prop->length += vd;  in update_dt_property()
158 			return -ENOMEM;  in update_dt_property()
160 		new_prop->name = kstrdup(name, GFP_KERNEL);  in update_dt_property()
161 		if (!new_prop->name) {  in update_dt_property()
163 			return -ENOMEM;  in update_dt_property()
166 		new_prop->length = vd;  in update_dt_property()
167 		new_prop->value = kzalloc(new_prop->length, GFP_KERNEL);  in update_dt_property()
168 		if (!new_prop->value) {  in update_dt_property()
169 			kfree(new_prop->name);  in update_dt_property()
171 			return -ENOMEM;  in update_dt_property()
174 		memcpy(new_prop->value, value, vd);  in update_dt_property()
198 	update_properties_token = rtas_token("ibm,update-properties");  in update_dt_node()
200 		return -EINVAL;  in update_dt_node()
204 		return -ENOMEM;  in update_dt_node()
207 	upwa->phandle = cpu_to_be32(dn->phandle);  in update_dt_node()
216 		nprops = be32_to_cpu(upwa->nprops);  in update_dt_node()
218 		/* On the first call to ibm,update-properties for a node the  in update_dt_node()
227 			nprops--;  in update_dt_node()
278 		return -ENOENT;  in add_dt_node()
282 	 * necessary counterpart. We also know that a platform-facilities  in add_dt_node()
287 	if (of_node_is_type(dn, "ibm,platform-facilities")) {  in add_dt_node()
309 	update_nodes_token = rtas_token("ibm,update-nodes");  in pseries_devicetree_update()
315 		return -ENOMEM;  in pseries_devicetree_update()
397 	/* Reinitialise system information for hv-24x7 */  in post_mobility_fixup()
416 		ret = -EINVAL;  in poll_vasi_state()
419 		ret = -EOPNOTSUPP;  in poll_vasi_state()
424 		ret = -EIO;  in poll_vasi_state()
448 			ret = -EIO;  in wait_for_vasi_session_suspending()
455 	 * ibm,suspend-me are also unimplemented, we'll recover then.  in wait_for_vasi_session_suspending()
457 	if (ret == -EOPNOTSUPP)  in wait_for_vasi_session_suspending()
481 		if (ret == -EINVAL || (!ret && state == H_VASI_COMPLETED)) {  in wait_for_vasi_session_completed()
542 	pr_info("calling ibm,suspend-me on CPU %i\n", smp_processor_id());  in do_suspend()
548 	 * programming non-existent entries on the destination. If  in do_suspend()
557 		pr_err("ibm,suspend-me error: %d\n", status);  in do_suspend()
565  * struct pseries_suspend_info - State shared between CPUs for join/suspend.
581 	atomic_t *counter = &info->counter;  in do_join()
606 		 * the load of info->done. It pairs with the barrier  in do_join()
610 		if (READ_ONCE(info->done) == false) {  in do_join()
620 		ret = -EIO;  in do_join()
628 		WRITE_ONCE(info->done, true);  in do_join()
630 		 * This barrier orders the store to info->done vs subsequent  in do_join()
719 		} else if (vasi_err != -EOPNOTSUPP) {  in pseries_suspend()
744 	 * When the migration is initiated, the hypervisor changes VAS  in pseries_migrate_partition()
745 	 * mappings to prepare before OS gets the notification and  in pseries_migrate_partition()
822 		return -ENOMEM;  in mobility_sysfs_init()