diff options
Diffstat (limited to 'arch/arm/cpu')
| -rw-r--r-- | arch/arm/cpu/armv7/Makefile | 2 | ||||
| -rw-r--r-- | arch/arm/cpu/armv7/psci-common.c | 39 |
2 files changed, 40 insertions, 1 deletions
diff --git a/arch/arm/cpu/armv7/Makefile b/arch/arm/cpu/armv7/Makefile index ddd8d12..0d4bfbc 100644 --- a/arch/arm/cpu/armv7/Makefile +++ b/arch/arm/cpu/armv7/Makefile @@ -19,7 +19,7 @@ endif endif obj-$(CONFIG_ARMV7_NONSEC) += nonsec_virt.o virt-v7.o virt-dt.o -obj-$(CONFIG_ARMV7_PSCI) += psci.o +obj-$(CONFIG_ARMV7_PSCI) += psci.o psci-common.o obj-$(CONFIG_IPROC) += iproc-common/ obj-$(CONFIG_KONA) += kona-common/ diff --git a/arch/arm/cpu/armv7/psci-common.c b/arch/arm/cpu/armv7/psci-common.c new file mode 100644 index 0000000..d14b693 --- /dev/null +++ b/arch/arm/cpu/armv7/psci-common.c @@ -0,0 +1,39 @@ +/* + * Common PSCI functions + * + * Copyright (C) 2016 Chen-Yu Tsai + * Author: Chen-Yu Tsai <wens@csie.org> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <config.h> +#include <asm/armv7.h> +#include <asm/macro.h> +#include <asm/psci.h> +#include <asm/secure.h> +#include <linux/linkage.h> + +static u32 psci_target_pc[CONFIG_ARMV7_PSCI_NR_CPUS] __secure_data = { 0 }; + +void __secure psci_save_target_pc(int cpu, u32 pc) +{ + psci_target_pc[cpu] = pc; + DSB; +} + +u32 __secure psci_get_target_pc(int cpu) +{ + return psci_target_pc[cpu]; +} + |