18c2ecf20Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0-only */ 28c2ecf20Sopenharmony_ci/* 38c2ecf20Sopenharmony_ci * kexec.h for kexec 48c2ecf20Sopenharmony_ci * Created by <nschichan@corp.free.fr> on Thu Oct 12 14:59:34 2006 58c2ecf20Sopenharmony_ci */ 68c2ecf20Sopenharmony_ci 78c2ecf20Sopenharmony_ci#ifndef _MIPS_KEXEC 88c2ecf20Sopenharmony_ci# define _MIPS_KEXEC 98c2ecf20Sopenharmony_ci 108c2ecf20Sopenharmony_ci#include <asm/stacktrace.h> 118c2ecf20Sopenharmony_ci 128c2ecf20Sopenharmony_ci/* Maximum physical address we can use pages from */ 138c2ecf20Sopenharmony_ci#define KEXEC_SOURCE_MEMORY_LIMIT (-1UL) 148c2ecf20Sopenharmony_ci/* Maximum address we can reach in physical address mode */ 158c2ecf20Sopenharmony_ci#define KEXEC_DESTINATION_MEMORY_LIMIT (-1UL) 168c2ecf20Sopenharmony_ci /* Maximum address we can use for the control code buffer */ 178c2ecf20Sopenharmony_ci#define KEXEC_CONTROL_MEMORY_LIMIT (-1UL) 188c2ecf20Sopenharmony_ci/* Reserve 3*4096 bytes for board-specific info */ 198c2ecf20Sopenharmony_ci#define KEXEC_CONTROL_PAGE_SIZE (4096 + 3*4096) 208c2ecf20Sopenharmony_ci 218c2ecf20Sopenharmony_ci/* The native architecture */ 228c2ecf20Sopenharmony_ci#define KEXEC_ARCH KEXEC_ARCH_MIPS 238c2ecf20Sopenharmony_ci#define MAX_NOTE_BYTES 1024 248c2ecf20Sopenharmony_ci 258c2ecf20Sopenharmony_cistatic inline void crash_setup_regs(struct pt_regs *newregs, 268c2ecf20Sopenharmony_ci struct pt_regs *oldregs) 278c2ecf20Sopenharmony_ci{ 288c2ecf20Sopenharmony_ci if (oldregs) 298c2ecf20Sopenharmony_ci memcpy(newregs, oldregs, sizeof(*newregs)); 308c2ecf20Sopenharmony_ci else 318c2ecf20Sopenharmony_ci prepare_frametrace(newregs); 328c2ecf20Sopenharmony_ci} 338c2ecf20Sopenharmony_ci 348c2ecf20Sopenharmony_ci#ifdef CONFIG_KEXEC 358c2ecf20Sopenharmony_cistruct kimage; 368c2ecf20Sopenharmony_ciextern unsigned long kexec_args[4]; 378c2ecf20Sopenharmony_ciextern int (*_machine_kexec_prepare)(struct kimage *); 388c2ecf20Sopenharmony_ciextern void (*_machine_kexec_shutdown)(void); 398c2ecf20Sopenharmony_ciextern void (*_machine_crash_shutdown)(struct pt_regs *regs); 408c2ecf20Sopenharmony_civoid default_machine_crash_shutdown(struct pt_regs *regs); 418c2ecf20Sopenharmony_civoid kexec_nonboot_cpu_jump(void); 428c2ecf20Sopenharmony_civoid kexec_reboot(void); 438c2ecf20Sopenharmony_ci#ifdef CONFIG_SMP 448c2ecf20Sopenharmony_ciextern const unsigned char kexec_smp_wait[]; 458c2ecf20Sopenharmony_ciextern unsigned long secondary_kexec_args[4]; 468c2ecf20Sopenharmony_ciextern atomic_t kexec_ready_to_reboot; 478c2ecf20Sopenharmony_ciextern void (*_crash_smp_send_stop)(void); 488c2ecf20Sopenharmony_ci#endif 498c2ecf20Sopenharmony_ci#endif 508c2ecf20Sopenharmony_ci 518c2ecf20Sopenharmony_ci#endif /* !_MIPS_KEXEC */ 52