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Michael Ellermane1df8702005-11-03 15:35:45 +11001#ifndef _ASM_POWERPC_KEXEC_H
2#define _ASM_POWERPC_KEXEC_H
3
4/*
5 * Maximum page that is mapped directly into kernel memory.
6 * XXX: Since we copy virt we can use any page we allocate
7 */
8#define KEXEC_SOURCE_MEMORY_LIMIT (-1UL)
9
10/*
11 * Maximum address we can reach in physical address mode.
12 * XXX: I want to allow initrd in highmem. Otherwise set to rmo on LPAR.
13 */
14#define KEXEC_DESTINATION_MEMORY_LIMIT (-1UL)
15
16/* Maximum address we can use for the control code buffer */
17#ifdef __powerpc64__
18#define KEXEC_CONTROL_MEMORY_LIMIT (-1UL)
19#else
20/* TASK_SIZE, probably left over from use_mm ?? */
21#define KEXEC_CONTROL_MEMORY_LIMIT TASK_SIZE
22#endif
23
24#define KEXEC_CONTROL_CODE_SIZE 4096
25
26/* The native architecture */
27#ifdef __powerpc64__
28#define KEXEC_ARCH KEXEC_ARCH_PPC64
29#else
30#define KEXEC_ARCH KEXEC_ARCH_PPC
31#endif
32
33#ifndef __ASSEMBLY__
34
35#define MAX_NOTE_BYTES 1024
36typedef u32 note_buf_t[MAX_NOTE_BYTES / sizeof(u32)];
37
38extern note_buf_t crash_notes[];
39
40#ifdef __powerpc64__
41extern void kexec_smp_wait(void); /* get and clear naca physid, wait for
42 master to copy new code to 0 */
Michael Ellerman593e5372005-11-12 00:06:06 +110043extern void __init kexec_setup(void);
Michael Ellermane1df8702005-11-03 15:35:45 +110044#else
45struct kimage;
46extern void machine_kexec_simple(struct kimage *image);
47#endif
48
49#endif /* ! __ASSEMBLY__ */
50#endif /* _ASM_POWERPC_KEXEC_H */