1 /* 2 * Common PSCI functions 3 * 4 * Copyright (C) 2016 Chen-Yu Tsai 5 * Author: Chen-Yu Tsai <wens@csie.org> 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License version 2 as 9 * published by the Free Software Foundation. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program. If not, see <http://www.gnu.org/licenses/>. 18 */ 19 20 #include <config.h> 21 #include <asm/armv7.h> 22 #include <asm/macro.h> 23 #include <asm/psci.h> 24 #include <asm/secure.h> 25 #include <linux/linkage.h> 26 27 static u32 psci_target_pc[CONFIG_ARMV7_PSCI_NR_CPUS] __secure_data = { 0 }; 28 29 void __secure psci_save_target_pc(int cpu, u32 pc) 30 { 31 psci_target_pc[cpu] = pc; 32 dsb(); 33 } 34 35 u32 __secure psci_get_target_pc(int cpu) 36 { 37 return psci_target_pc[cpu]; 38 } 39 40