LXR linux/arch/mips/include/asm/kexec.h

   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
  27static 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
  37struct kimage;
  38extern unsigned long kexec_args[4];
  39extern int (*_machine_kexec_prepare)(struct kimage *);
  40extern void (*_machine_kexec_shutdown)(void);
  41extern void (*_machine_crash_shutdown)(struct pt_regs *regs);
  42extern void default_machine_crash_shutdown(struct pt_regs *regs);
  43#ifdef CONFIG_SMP
  44extern const unsigned char kexec_smp_wait[];
  45extern unsigned long secondary_kexec_args[4];
  46extern void (*relocated_kexec_smp_wait) (void *);
  47extern atomic_t kexec_ready_to_reboot;
  48extern void (*_crash_smp_send_stop)(void);
  49#endif
  50#endif
  51
  52#endif /* !_MIPS_KEXEC */
  53