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 static u32 psci_context_id[CONFIG_ARMV7_PSCI_NR_CPUS] __secure_data = { 0 };
29 
psci_save(int cpu,u32 pc,u32 context_id)30 void __secure psci_save(int cpu, u32 pc, u32 context_id)
31 {
32 	psci_target_pc[cpu] = pc;
33 	psci_context_id[cpu] = context_id;
34 	dsb();
35 }
36 
psci_get_target_pc(int cpu)37 u32 __secure psci_get_target_pc(int cpu)
38 {
39 	return psci_target_pc[cpu];
40 }
41 
psci_get_context_id(int cpu)42 u32 __secure psci_get_context_id(int cpu)
43 {
44 	return psci_context_id[cpu];
45 }
46 
47