| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [diff] [blame] | 1 | /* |
| 2 | * CPU reset routines |
| 3 | * |
| 4 | * Copyright (C) 2015 Huawei Futurewei Technologies. |
| 5 | * |
| 6 | * This program is free software; you can redistribute it and/or modify |
| 7 | * it under the terms of the GNU General Public License version 2 as |
| 8 | * published by the Free Software Foundation. |
| 9 | */ |
| 10 | |
| 11 | #ifndef _ARM64_CPU_RESET_H |
| 12 | #define _ARM64_CPU_RESET_H |
| 13 | |
| 14 | #include <asm/virt.h> |
| 15 | |
| 16 | void __cpu_soft_restart(unsigned long el2_switch, unsigned long entry, |
| 17 | unsigned long arg0, unsigned long arg1, unsigned long arg2); |
| 18 | |
| 19 | static inline void __noreturn cpu_soft_restart(unsigned long entry, |
| 20 | unsigned long arg0, |
| 21 | unsigned long arg1, |
| 22 | unsigned long arg2) |
| 23 | { |
| 24 | typeof(__cpu_soft_restart) *restart; |
| 25 | |
| 26 | unsigned long el2_switch = !is_kernel_in_hyp_mode() && |
| 27 | is_hyp_mode_available(); |
| 28 | restart = (void *)__pa_symbol(__cpu_soft_restart); |
| 29 | |
| 30 | cpu_install_idmap(); |
| 31 | restart(el2_switch, entry, arg0, arg1, arg2); |
| 32 | unreachable(); |
| 33 | } |
| 34 | |
| 35 | #endif |