1384740dcSRalf Baechle /* 2384740dcSRalf Baechle * kexec.h for kexec 3384740dcSRalf Baechle * Created by <nschichan@corp.free.fr> on Thu Oct 12 14:59:34 2006 4384740dcSRalf Baechle * 5384740dcSRalf Baechle * This source code is licensed under the GNU General Public License, 6384740dcSRalf Baechle * Version 2. See the file COPYING for more details. 7384740dcSRalf Baechle */ 8384740dcSRalf Baechle 9384740dcSRalf Baechle #ifndef _MIPS_KEXEC 10384740dcSRalf Baechle # define _MIPS_KEXEC 11384740dcSRalf Baechle 127aa1c8f4SRalf Baechle #include <asm/stacktrace.h> 137aa1c8f4SRalf Baechle 14384740dcSRalf Baechle /* Maximum physical address we can use pages from */ 15384740dcSRalf Baechle #define KEXEC_SOURCE_MEMORY_LIMIT (0x20000000) 16384740dcSRalf Baechle /* Maximum address we can reach in physical address mode */ 17384740dcSRalf Baechle #define KEXEC_DESTINATION_MEMORY_LIMIT (0x20000000) 18384740dcSRalf Baechle /* Maximum address we can use for the control code buffer */ 19384740dcSRalf Baechle #define KEXEC_CONTROL_MEMORY_LIMIT (0x20000000) 207aa1c8f4SRalf Baechle /* Reserve 3*4096 bytes for board-specific info */ 217aa1c8f4SRalf Baechle #define KEXEC_CONTROL_PAGE_SIZE (4096 + 3*4096) 22384740dcSRalf Baechle 23384740dcSRalf Baechle /* The native architecture */ 24384740dcSRalf Baechle #define KEXEC_ARCH KEXEC_ARCH_MIPS 257aa1c8f4SRalf Baechle #define MAX_NOTE_BYTES 1024 26384740dcSRalf Baechle 27384740dcSRalf Baechle static inline void crash_setup_regs(struct pt_regs *newregs, 28384740dcSRalf Baechle struct pt_regs *oldregs) 29384740dcSRalf Baechle { 307aa1c8f4SRalf Baechle if (oldregs) 317aa1c8f4SRalf Baechle memcpy(newregs, oldregs, sizeof(*newregs)); 327aa1c8f4SRalf Baechle else 337aa1c8f4SRalf Baechle prepare_frametrace(newregs); 34384740dcSRalf Baechle } 35384740dcSRalf Baechle 367aa1c8f4SRalf Baechle #ifdef CONFIG_KEXEC 377aa1c8f4SRalf Baechle struct kimage; 387aa1c8f4SRalf Baechle extern unsigned long kexec_args[4]; 397aa1c8f4SRalf Baechle extern int (*_machine_kexec_prepare)(struct kimage *); 407aa1c8f4SRalf Baechle extern void (*_machine_kexec_shutdown)(void); 417aa1c8f4SRalf Baechle extern void (*_machine_crash_shutdown)(struct pt_regs *regs); 427aa1c8f4SRalf Baechle extern void default_machine_crash_shutdown(struct pt_regs *regs); 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 void (*relocated_kexec_smp_wait) (void *); 477aa1c8f4SRalf Baechle extern atomic_t kexec_ready_to_reboot; 48*54c721b8SHidehiro Kawai extern void (*_crash_smp_send_stop)(void); 497aa1c8f4SRalf Baechle #endif 507aa1c8f4SRalf Baechle #endif 517aa1c8f4SRalf Baechle 52384740dcSRalf Baechle #endif /* !_MIPS_KEXEC */ 53