2 * Code to handle transition of Linux booting another kernel.
4 * Copyright (C) 2002-2003 Eric Biederman <ebiederm@xmission.com>
5 * GameCube/ppc32 port Copyright (C) 2004 Albert Herranz
6 * Copyright (C) 2005 IBM Corporation.
8 * This source code is licensed under the GNU General Public License,
9 * Version 2. See the file COPYING for more details.
12 #include <linux/kexec.h>
13 #include <linux/reboot.h>
14 #include <linux/threads.h>
15 #include <asm/machdep.h>
17 void machine_crash_shutdown(struct pt_regs
*regs
)
19 if (ppc_md
.machine_crash_shutdown
)
20 ppc_md
.machine_crash_shutdown(regs
);
24 * Do what every setup is needed on image and the
25 * reboot code buffer to allow us to avoid allocations
28 int machine_kexec_prepare(struct kimage
*image
)
30 if (ppc_md
.machine_kexec_prepare
)
31 return ppc_md
.machine_kexec_prepare(image
);
33 * Fail if platform doesn't provide its own machine_kexec_prepare
39 void machine_kexec_cleanup(struct kimage
*image
)
41 if (ppc_md
.machine_kexec_cleanup
)
42 ppc_md
.machine_kexec_cleanup(image
);
46 * Do not allocate memory (or fail in any way) in machine_kexec().
47 * We are past the point of no return, committed to rebooting now.
49 NORET_TYPE
void machine_kexec(struct kimage
*image
)
51 if (ppc_md
.machine_kexec
)
52 ppc_md
.machine_kexec(image
);
55 * Fall back to normal restart if platform doesn't provide
56 * its own kexec function, and user insist to kexec...
58 machine_restart(NULL
);