1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3 * kexec.h for kexec
4 * Created by <nschichan@corp.free.fr> on Thu Oct 12 14:59:34 2006
5 */
6
7 #ifndef _MIPS_KEXEC
8 # define _MIPS_KEXEC
9
10 #include <asm/stacktrace.h>
11
12 /* Maximum physical address we can use pages from */
13 #define KEXEC_SOURCE_MEMORY_LIMIT (-1UL)
14 /* Maximum address we can reach in physical address mode */
15 #define KEXEC_DESTINATION_MEMORY_LIMIT (-1UL)
16 /* Maximum address we can use for the control code buffer */
17 #define KEXEC_CONTROL_MEMORY_LIMIT (-1UL)
18 /* Reserve 3*4096 bytes for board-specific info */
19 #define KEXEC_CONTROL_PAGE_SIZE (4096 + 3*4096)
20
21 /* The native architecture */
22 #define KEXEC_ARCH KEXEC_ARCH_MIPS
23 #define MAX_NOTE_BYTES 1024
24
25 static inline void crash_setup_regs(struct pt_regs *newregs,
26 struct pt_regs *oldregs)
27 {
28 if (oldregs)
29 memcpy(newregs, oldregs, sizeof(*newregs));
30 else
31 prepare_frametrace(newregs);
32 }
33
34 #ifdef CONFIG_KEXEC_CORE
35 struct kimage;
36 extern unsigned long kexec_args[4];
37 extern int (*_machine_kexec_prepare)(struct kimage *);
38 extern void (*_machine_kexec_shutdown)(void);
39 extern void (*_machine_crash_shutdown)(struct pt_regs *regs);
40 void default_machine_crash_shutdown(struct pt_regs *regs);
41 void kexec_nonboot_cpu_jump(void);
42 void kexec_reboot(void);
43 #ifdef CONFIG_SMP
44 extern const unsigned char kexec_smp_wait[];
45 extern unsigned long secondary_kexec_args[4];
46 extern atomic_t kexec_ready_to_reboot;
47 extern void (*_crash_smp_send_stop)(void);
48 #endif
49 #endif
50
51 #endif /* !_MIPS_KEXEC */
52
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