1 // SPDX-License-Identifier: GPL-2.0-only
50 #define PRRN_SCOPE -2
96 	is_platfac = of_node_is_type(dn, "ibm,platform-facilities") ||  in delete_dt_node()
97 		     of_node_is_type(pdn, "ibm,platform-facilities");  in delete_dt_node()
101 	 * The drivers that bind to nodes in the platform-facilities  in delete_dt_node()
126 	 * ibm,update-properties again to get the rest of the value.  in update_dt_property()
137 		char *new_data = kzalloc(new_prop->length + vd, GFP_KERNEL);  in update_dt_property()
139 			return -ENOMEM;  in update_dt_property()
141 		memcpy(new_data, new_prop->value, new_prop->length);  in update_dt_property()
142 		memcpy(new_data + new_prop->length, value, vd);  in update_dt_property()
144 		kfree(new_prop->value);  in update_dt_property()
145 		new_prop->value = new_data;  in update_dt_property()
146 		new_prop->length += vd;  in update_dt_property()
150 			return -ENOMEM;  in update_dt_property()
152 		new_prop->name = kstrdup(name, GFP_KERNEL);  in update_dt_property()
153 		if (!new_prop->name) {  in update_dt_property()
155 			return -ENOMEM;  in update_dt_property()
158 		new_prop->length = vd;  in update_dt_property()
159 		new_prop->value = kzalloc(new_prop->length, GFP_KERNEL);  in update_dt_property()
160 		if (!new_prop->value) {  in update_dt_property()
161 			kfree(new_prop->name);  in update_dt_property()
163 			return -ENOMEM;  in update_dt_property()
166 		memcpy(new_prop->value, value, vd);  in update_dt_property()
192 		return -EINVAL;  in update_dt_node()
196 		return -ENOMEM;  in update_dt_node()
199 	upwa->phandle = cpu_to_be32(dn->phandle);  in update_dt_node()
208 		nprops = be32_to_cpu(upwa->nprops);  in update_dt_node()
210 		/* On the first call to ibm,update-properties for a node the  in update_dt_node()
219 			nprops--;  in update_dt_node()
270 		return -ENOENT;  in add_dt_node()
274 	 * necessary counterpart. We also know that a platform-facilities  in add_dt_node()
279 	if (of_node_is_type(dn, "ibm,platform-facilities")) {  in add_dt_node()
307 		return -ENOMEM;  in pseries_devicetree_update()
389 	/* Reinitialise system information for hv-24x7 */  in post_mobility_fixup()
408 		ret = -EINVAL;  in poll_vasi_state()
411 		ret = -EOPNOTSUPP;  in poll_vasi_state()
416 		ret = -EIO;  in poll_vasi_state()
440 			ret = -EIO;  in wait_for_vasi_session_suspending()
447 	 * ibm,suspend-me are also unimplemented, we'll recover then.  in wait_for_vasi_session_suspending()
449 	if (ret == -EOPNOTSUPP)  in wait_for_vasi_session_suspending()
473 		if (ret == -EINVAL || (!ret && state == H_VASI_COMPLETED)) {  in wait_for_vasi_session_completed()
534 	pr_info("calling ibm,suspend-me on CPU %i\n", smp_processor_id());  in do_suspend()
540 	 * programming non-existent entries on the destination. If  in do_suspend()
549 		pr_err("ibm,suspend-me error: %d\n", status);  in do_suspend()
557  * struct pseries_suspend_info - State shared between CPUs for join/suspend.
573 	atomic_t *counter = &info->counter;  in do_join()
598 		 * the load of info->done. It pairs with the barrier  in do_join()
602 		if (READ_ONCE(info->done) == false) {  in do_join()
612 		ret = -EIO;  in do_join()
620 		WRITE_ONCE(info->done, true);  in do_join()
622 		 * This barrier orders the store to info->done vs subsequent  in do_join()
714 		} else if (vasi_err != -EOPNOTSUPP) {  in pseries_suspend()
739 	 * When the migration is initiated, the hypervisor changes VAS  in pseries_migrate_partition()
740 	 * mappings to prepare before OS gets the notification and  in pseries_migrate_partition()
817 		return -ENOMEM;  in mobility_sysfs_init()