140b0b3f8SThomas Gleixner /* SPDX-License-Identifier: GPL-2.0-only */ 2384740dcSRalf Baechle /* 3384740dcSRalf Baechle * kexec.h for kexec 4384740dcSRalf Baechle * Created by <nschichan@corp.free.fr> on Thu Oct 12 14:59:34 2006 5384740dcSRalf Baechle */ 6384740dcSRalf Baechle 7384740dcSRalf Baechle #ifndef _MIPS_KEXEC 8384740dcSRalf Baechle # define _MIPS_KEXEC 9384740dcSRalf Baechle 107aa1c8f4SRalf Baechle #include <asm/stacktrace.h> 117aa1c8f4SRalf Baechle 12384740dcSRalf Baechle /* Maximum physical address we can use pages from */ 13a6da4d6fSDengcheng Zhu #define KEXEC_SOURCE_MEMORY_LIMIT (-1UL) 14384740dcSRalf Baechle /* Maximum address we can reach in physical address mode */ 15a6da4d6fSDengcheng Zhu #define KEXEC_DESTINATION_MEMORY_LIMIT (-1UL) 16384740dcSRalf Baechle /* Maximum address we can use for the control code buffer */ 17a6da4d6fSDengcheng Zhu #define KEXEC_CONTROL_MEMORY_LIMIT (-1UL) 187aa1c8f4SRalf Baechle /* Reserve 3*4096 bytes for board-specific info */ 197aa1c8f4SRalf Baechle #define KEXEC_CONTROL_PAGE_SIZE (4096 + 3*4096) 20384740dcSRalf Baechle 21384740dcSRalf Baechle /* The native architecture */ 22384740dcSRalf Baechle #define KEXEC_ARCH KEXEC_ARCH_MIPS 237aa1c8f4SRalf Baechle #define MAX_NOTE_BYTES 1024 24384740dcSRalf Baechle crash_setup_regs(struct pt_regs * newregs,struct pt_regs * oldregs)25384740dcSRalf Baechlestatic inline void crash_setup_regs(struct pt_regs *newregs, 26384740dcSRalf Baechle struct pt_regs *oldregs) 27384740dcSRalf Baechle { 287aa1c8f4SRalf Baechle if (oldregs) 297aa1c8f4SRalf Baechle memcpy(newregs, oldregs, sizeof(*newregs)); 307aa1c8f4SRalf Baechle else 317aa1c8f4SRalf Baechle prepare_frametrace(newregs); 32384740dcSRalf Baechle } 33384740dcSRalf Baechle 347aa1c8f4SRalf Baechle #ifdef CONFIG_KEXEC 357aa1c8f4SRalf Baechle struct kimage; 367aa1c8f4SRalf Baechle extern unsigned long kexec_args[4]; 377aa1c8f4SRalf Baechle extern int (*_machine_kexec_prepare)(struct kimage *); 387aa1c8f4SRalf Baechle extern void (*_machine_kexec_shutdown)(void); 397aa1c8f4SRalf Baechle extern void (*_machine_crash_shutdown)(struct pt_regs *regs); 4062cac480SDengcheng Zhu void default_machine_crash_shutdown(struct pt_regs *regs); 4162cac480SDengcheng Zhu void kexec_nonboot_cpu_jump(void); 4262cac480SDengcheng Zhu void kexec_reboot(void); 437aa1c8f4SRalf Baechle #ifdef CONFIG_SMP 447aa1c8f4SRalf Baechle extern const unsigned char kexec_smp_wait[]; 457aa1c8f4SRalf Baechle extern unsigned long secondary_kexec_args[4]; 467aa1c8f4SRalf Baechle extern atomic_t kexec_ready_to_reboot; 4754c721b8SHidehiro Kawai extern void (*_crash_smp_send_stop)(void); 487aa1c8f4SRalf Baechle #endif 497aa1c8f4SRalf Baechle #endif 507aa1c8f4SRalf Baechle 51384740dcSRalf Baechle #endif /* !_MIPS_KEXEC */ 52