| Nicolas Schichan | 583bb86 | 2006-10-18 15:14:55 +0200 | [diff] [blame] | 1 | /* |
| 2 | * kexec.h for kexec |
| 3 | * Created by <nschichan@corp.free.fr> on Thu Oct 12 14:59:34 2006 |
| 4 | * |
| 5 | * This source code is licensed under the GNU General Public License, |
| 6 | * Version 2. See the file COPYING for more details. |
| 7 | */ |
| 8 | |
| 9 | #ifndef _MIPS_KEXEC |
| 10 | # define _MIPS_KEXEC |
| 11 | |
| Ralf Baechle | 7aa1c8f | 2012-10-11 18:14:58 +0200 | [diff] [blame] | 12 | #include <asm/stacktrace.h> |
| 13 | |
| Nicolas Schichan | 583bb86 | 2006-10-18 15:14:55 +0200 | [diff] [blame] | 14 | /* Maximum physical address we can use pages from */ |
| Dengcheng Zhu | 2dc1504 | 2018-09-11 14:49:23 -0700 | [diff] [blame] | 15 | #define KEXEC_SOURCE_MEMORY_LIMIT (-1UL) |
| Nicolas Schichan | 583bb86 | 2006-10-18 15:14:55 +0200 | [diff] [blame] | 16 | /* Maximum address we can reach in physical address mode */ |
| Dengcheng Zhu | 2dc1504 | 2018-09-11 14:49:23 -0700 | [diff] [blame] | 17 | #define KEXEC_DESTINATION_MEMORY_LIMIT (-1UL) |
| Nicolas Schichan | 583bb86 | 2006-10-18 15:14:55 +0200 | [diff] [blame] | 18 | /* Maximum address we can use for the control code buffer */ |
| Dengcheng Zhu | 2dc1504 | 2018-09-11 14:49:23 -0700 | [diff] [blame] | 19 | #define KEXEC_CONTROL_MEMORY_LIMIT (-1UL) |
| Ralf Baechle | 7aa1c8f | 2012-10-11 18:14:58 +0200 | [diff] [blame] | 20 | /* Reserve 3*4096 bytes for board-specific info */ |
| 21 | #define KEXEC_CONTROL_PAGE_SIZE (4096 + 3*4096) |
| Nicolas Schichan | 583bb86 | 2006-10-18 15:14:55 +0200 | [diff] [blame] | 22 | |
| 23 | /* The native architecture */ |
| 24 | #define KEXEC_ARCH KEXEC_ARCH_MIPS |
| Ralf Baechle | 7aa1c8f | 2012-10-11 18:14:58 +0200 | [diff] [blame] | 25 | #define MAX_NOTE_BYTES 1024 |
| Nicolas Schichan | 583bb86 | 2006-10-18 15:14:55 +0200 | [diff] [blame] | 26 | |
| Nicolas Schichan | 583bb86 | 2006-10-18 15:14:55 +0200 | [diff] [blame] | 27 | static inline void crash_setup_regs(struct pt_regs *newregs, |
| 28 | struct pt_regs *oldregs) |
| 29 | { |
| Ralf Baechle | 7aa1c8f | 2012-10-11 18:14:58 +0200 | [diff] [blame] | 30 | if (oldregs) |
| 31 | memcpy(newregs, oldregs, sizeof(*newregs)); |
| 32 | else |
| 33 | prepare_frametrace(newregs); |
| Nicolas Schichan | 583bb86 | 2006-10-18 15:14:55 +0200 | [diff] [blame] | 34 | } |
| 35 | |
| Ralf Baechle | 7aa1c8f | 2012-10-11 18:14:58 +0200 | [diff] [blame] | 36 | #ifdef CONFIG_KEXEC |
| 37 | struct kimage; |
| 38 | extern unsigned long kexec_args[4]; |
| 39 | extern int (*_machine_kexec_prepare)(struct kimage *); |
| 40 | extern void (*_machine_kexec_shutdown)(void); |
| 41 | extern void (*_machine_crash_shutdown)(struct pt_regs *regs); |
| 42 | extern void default_machine_crash_shutdown(struct pt_regs *regs); |
| 43 | #ifdef CONFIG_SMP |
| 44 | extern const unsigned char kexec_smp_wait[]; |
| 45 | extern unsigned long secondary_kexec_args[4]; |
| 46 | extern void (*relocated_kexec_smp_wait) (void *); |
| 47 | extern atomic_t kexec_ready_to_reboot; |
| Hidehiro Kawai | 54c721b | 2016-10-11 13:54:26 -0700 | [diff] [blame] | 48 | extern void (*_crash_smp_send_stop)(void); |
| Ralf Baechle | 7aa1c8f | 2012-10-11 18:14:58 +0200 | [diff] [blame] | 49 | #endif |
| 50 | #endif |
| 51 | |
| Nicolas Schichan | 583bb86 | 2006-10-18 15:14:55 +0200 | [diff] [blame] | 52 | #endif /* !_MIPS_KEXEC */ |