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Linux/arch/mips/include/asm/kexec.h

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  1 /*
  2  * kexec.h for kexec
  3  * Created by <nschichan@corp.free.fr> on Thu Oct 12 14:59:34 2006
  4  *
  5  * This source code is licensed under the GNU General Public License,
  6  * Version 2.  See the file COPYING for more details.
  7  */
  8 
  9 #ifndef _MIPS_KEXEC
 10 # define _MIPS_KEXEC
 11 
 12 #include <asm/stacktrace.h>
 13 
 14 /* Maximum physical address we can use pages from */
 15 #define KEXEC_SOURCE_MEMORY_LIMIT (0x20000000)
 16 /* Maximum address we can reach in physical address mode */
 17 #define KEXEC_DESTINATION_MEMORY_LIMIT (0x20000000)
 18  /* Maximum address we can use for the control code buffer */
 19 #define KEXEC_CONTROL_MEMORY_LIMIT (0x20000000)
 20 /* Reserve 3*4096 bytes for board-specific info */
 21 #define KEXEC_CONTROL_PAGE_SIZE (4096 + 3*4096)
 22 
 23 /* The native architecture */
 24 #define KEXEC_ARCH KEXEC_ARCH_MIPS
 25 #define MAX_NOTE_BYTES 1024
 26 
 27 static inline void crash_setup_regs(struct pt_regs *newregs,
 28                                     struct pt_regs *oldregs)
 29 {
 30         if (oldregs)
 31                 memcpy(newregs, oldregs, sizeof(*newregs));
 32         else
 33                 prepare_frametrace(newregs);
 34 }
 35 
 36 #ifdef CONFIG_KEXEC
 37 struct kimage;
 38 extern unsigned long kexec_args[4];
 39 extern int (*_machine_kexec_prepare)(struct kimage *);
 40 extern void (*_machine_kexec_shutdown)(void);
 41 extern void (*_machine_crash_shutdown)(struct pt_regs *regs);
 42 extern void default_machine_crash_shutdown(struct pt_regs *regs);
 43 #ifdef CONFIG_SMP
 44 extern const unsigned char kexec_smp_wait[];
 45 extern unsigned long secondary_kexec_args[4];
 46 extern void (*relocated_kexec_smp_wait) (void *);
 47 extern atomic_t kexec_ready_to_reboot;
 48 extern void (*_crash_smp_send_stop)(void);
 49 #endif
 50 #endif
 51 
 52 #endif /* !_MIPS_KEXEC */
 53 

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