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 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