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Linux kernel mirror (for testing)
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linux
1#ifndef _ASM_POWERPC_KEXEC_H
2#define _ASM_POWERPC_KEXEC_H
3#ifdef __KERNEL__
4
5/*
6 * Maximum page that is mapped directly into kernel memory.
7 * XXX: Since we copy virt we can use any page we allocate
8 */
9#define KEXEC_SOURCE_MEMORY_LIMIT (-1UL)
10
11/*
12 * Maximum address we can reach in physical address mode.
13 * XXX: I want to allow initrd in highmem. Otherwise set to rmo on LPAR.
14 */
15#define KEXEC_DESTINATION_MEMORY_LIMIT (-1UL)
16
17/* Maximum address we can use for the control code buffer */
18#ifdef __powerpc64__
19#define KEXEC_CONTROL_MEMORY_LIMIT (-1UL)
20#else
21/* TASK_SIZE, probably left over from use_mm ?? */
22#define KEXEC_CONTROL_MEMORY_LIMIT TASK_SIZE
23#endif
24
25#define KEXEC_CONTROL_CODE_SIZE 4096
26
27/* The native architecture */
28#ifdef __powerpc64__
29#define KEXEC_ARCH KEXEC_ARCH_PPC64
30#else
31#define KEXEC_ARCH KEXEC_ARCH_PPC
32#endif
33
34#define HAVE_ARCH_COPY_OLDMEM_PAGE
35
36#ifndef __ASSEMBLY__
37
38#ifdef CONFIG_KEXEC
39
40#define MAX_NOTE_BYTES 1024
41typedef u32 note_buf_t[MAX_NOTE_BYTES / sizeof(u32)];
42
43extern note_buf_t crash_notes[];
44
45#ifdef __powerpc64__
46extern void kexec_smp_wait(void); /* get and clear naca physid, wait for
47 master to copy new code to 0 */
48extern void __init kexec_setup(void);
49extern int crashing_cpu;
50extern void crash_send_ipi(void (*crash_ipi_callback)(struct pt_regs *));
51#endif /* __powerpc64 __ */
52
53struct kimage;
54struct pt_regs;
55extern void default_machine_kexec(struct kimage *image);
56extern int default_machine_kexec_prepare(struct kimage *image);
57extern void default_machine_crash_shutdown(struct pt_regs *regs);
58
59#endif /* !CONFIG_KEXEC */
60
61#endif /* ! __ASSEMBLY__ */
62#endif /* __KERNEL__ */
63#endif /* _ASM_POWERPC_KEXEC_H */