1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0-only */ 2*4882a593Smuzhiyun /* 3*4882a593Smuzhiyun * kexec.h for kexec 4*4882a593Smuzhiyun * Created by <nschichan@corp.free.fr> on Thu Oct 12 14:59:34 2006 5*4882a593Smuzhiyun */ 6*4882a593Smuzhiyun 7*4882a593Smuzhiyun #ifndef _MIPS_KEXEC 8*4882a593Smuzhiyun # define _MIPS_KEXEC 9*4882a593Smuzhiyun 10*4882a593Smuzhiyun #include <asm/stacktrace.h> 11*4882a593Smuzhiyun 12*4882a593Smuzhiyun /* Maximum physical address we can use pages from */ 13*4882a593Smuzhiyun #define KEXEC_SOURCE_MEMORY_LIMIT (-1UL) 14*4882a593Smuzhiyun /* Maximum address we can reach in physical address mode */ 15*4882a593Smuzhiyun #define KEXEC_DESTINATION_MEMORY_LIMIT (-1UL) 16*4882a593Smuzhiyun /* Maximum address we can use for the control code buffer */ 17*4882a593Smuzhiyun #define KEXEC_CONTROL_MEMORY_LIMIT (-1UL) 18*4882a593Smuzhiyun /* Reserve 3*4096 bytes for board-specific info */ 19*4882a593Smuzhiyun #define KEXEC_CONTROL_PAGE_SIZE (4096 + 3*4096) 20*4882a593Smuzhiyun 21*4882a593Smuzhiyun /* The native architecture */ 22*4882a593Smuzhiyun #define KEXEC_ARCH KEXEC_ARCH_MIPS 23*4882a593Smuzhiyun #define MAX_NOTE_BYTES 1024 24*4882a593Smuzhiyun crash_setup_regs(struct pt_regs * newregs,struct pt_regs * oldregs)25*4882a593Smuzhiyunstatic inline void crash_setup_regs(struct pt_regs *newregs, 26*4882a593Smuzhiyun struct pt_regs *oldregs) 27*4882a593Smuzhiyun { 28*4882a593Smuzhiyun if (oldregs) 29*4882a593Smuzhiyun memcpy(newregs, oldregs, sizeof(*newregs)); 30*4882a593Smuzhiyun else 31*4882a593Smuzhiyun prepare_frametrace(newregs); 32*4882a593Smuzhiyun } 33*4882a593Smuzhiyun 34*4882a593Smuzhiyun #ifdef CONFIG_KEXEC 35*4882a593Smuzhiyun struct kimage; 36*4882a593Smuzhiyun extern unsigned long kexec_args[4]; 37*4882a593Smuzhiyun extern int (*_machine_kexec_prepare)(struct kimage *); 38*4882a593Smuzhiyun extern void (*_machine_kexec_shutdown)(void); 39*4882a593Smuzhiyun extern void (*_machine_crash_shutdown)(struct pt_regs *regs); 40*4882a593Smuzhiyun void default_machine_crash_shutdown(struct pt_regs *regs); 41*4882a593Smuzhiyun void kexec_nonboot_cpu_jump(void); 42*4882a593Smuzhiyun void kexec_reboot(void); 43*4882a593Smuzhiyun #ifdef CONFIG_SMP 44*4882a593Smuzhiyun extern const unsigned char kexec_smp_wait[]; 45*4882a593Smuzhiyun extern unsigned long secondary_kexec_args[4]; 46*4882a593Smuzhiyun extern atomic_t kexec_ready_to_reboot; 47*4882a593Smuzhiyun extern void (*_crash_smp_send_stop)(void); 48*4882a593Smuzhiyun #endif 49*4882a593Smuzhiyun #endif 50*4882a593Smuzhiyun 51*4882a593Smuzhiyun #endif /* !_MIPS_KEXEC */ 52