uboot/u-boot-stm32mp-2020.01/arch/arm/cpu/armv7/psci-common.c

47 lines
1.2 KiB
C
Raw Normal View History

2024-01-10 06:52:34 +00:00
/*
* 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 };
static u32 psci_context_id[CONFIG_ARMV7_PSCI_NR_CPUS] __secure_data = { 0 };
void __secure psci_save(int cpu, u32 pc, u32 context_id)
{
psci_target_pc[cpu] = pc;
psci_context_id[cpu] = context_id;
dsb();
}
u32 __secure psci_get_target_pc(int cpu)
{
return psci_target_pc[cpu];
}
u32 __secure psci_get_context_id(int cpu)
{
return psci_context_id[cpu];
}