1 /* 2 * Copyright (c) 2015, ARM Limited and Contributors. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are met: 6 * 7 * Redistributions of source code must retain the above copyright notice, this 8 * list of conditions and the following disclaimer. 9 * 10 * Redistributions in binary form must reproduce the above copyright notice, 11 * this list of conditions and the following disclaimer in the documentation 12 * and/or other materials provided with the distribution. 13 * 14 * Neither the name of ARM nor the names of its contributors may be used 15 * to endorse or promote products derived from this software without specific 16 * prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 22 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28 * POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #include <psci.h> 32 33 #define MPIDR_CPU0 0x80000000 34 35 /******************************************************************************* 36 * Return the type of payload TLKD is dealing with. Report the current 37 * resident cpu (mpidr format) if it is a UP/UP migratable payload. 38 ******************************************************************************/ 39 static int32_t cpu_migrate_info(uint64_t *resident_cpu) 40 { 41 /* the payload runs only on CPU0 */ 42 *resident_cpu = MPIDR_CPU0; 43 44 /* Uniprocessor, not migrate capable payload */ 45 return PSCI_TOS_NOT_UP_MIG_CAP; 46 } 47 48 /******************************************************************************* 49 * Structure populated by the Dispatcher to be given a chance to perform any 50 * bookkeeping before PSCI executes a power mgmt. operation. 51 ******************************************************************************/ 52 const spd_pm_ops_t tlkd_pm_ops = { 53 .svc_migrate_info = cpu_migrate_info, 54 }; 55