| David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame^] | 1 | /* SPDX-License-Identifier: GPL-2.0-only */ |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 2 | /* |
| 3 | * CPU reset routines |
| 4 | * |
| 5 | * Copyright (C) 2015 Huawei Futurewei Technologies. |
| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 6 | */ |
| 7 | |
| 8 | #ifndef _ARM64_CPU_RESET_H |
| 9 | #define _ARM64_CPU_RESET_H |
| 10 | |
| 11 | #include <asm/virt.h> |
| 12 | |
| 13 | void __cpu_soft_restart(unsigned long el2_switch, unsigned long entry, |
| 14 | unsigned long arg0, unsigned long arg1, unsigned long arg2); |
| 15 | |
| 16 | static inline void __noreturn cpu_soft_restart(unsigned long entry, |
| 17 | unsigned long arg0, |
| 18 | unsigned long arg1, |
| 19 | unsigned long arg2) |
| 20 | { |
| 21 | typeof(__cpu_soft_restart) *restart; |
| 22 | |
| 23 | unsigned long el2_switch = !is_kernel_in_hyp_mode() && |
| 24 | is_hyp_mode_available(); |
| 25 | restart = (void *)__pa_symbol(__cpu_soft_restart); |
| 26 | |
| 27 | cpu_install_idmap(); |
| 28 | restart(el2_switch, entry, arg0, arg1, arg2); |
| 29 | unreachable(); |
| 30 | } |
| 31 | |
| 32 | #endif |