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R Sharadafce0d572005-06-25 14:58:10 -07001#ifndef _PPC64_KEXEC_H
2#define _PPC64_KEXEC_H
3
4/*
5 * KEXEC_SOURCE_MEMORY_LIMIT maximum page get_free_page can return.
6 * I.e. Maximum page that is mapped directly into kernel memory,
7 * and kmap is not required.
8 */
9
10/* Maximum physical address we can use pages from */
11/* XXX: since we copy virt we can use any page we allocate */
12#define KEXEC_SOURCE_MEMORY_LIMIT (-1UL)
13
14/* Maximum address we can reach in physical address mode */
15/* XXX: I want to allow initrd in highmem. otherwise set to rmo on lpar */
16#define KEXEC_DESTINATION_MEMORY_LIMIT (-1UL)
17
18/* Maximum address we can use for the control code buffer */
19/* XXX: unused today, ppc32 uses TASK_SIZE, probably left over from use_mm */
20#define KEXEC_CONTROL_MEMORY_LIMIT (-1UL)
21
22/* XXX: today we don't use this at all, althogh we have a static stack */
23#define KEXEC_CONTROL_CODE_SIZE 4096
24
25/* The native architecture */
26#define KEXEC_ARCH KEXEC_ARCH_PPC64
27
28#define MAX_NOTE_BYTES 1024
29
30#ifndef __ASSEMBLY__
31
32typedef u32 note_buf_t[MAX_NOTE_BYTES/4];
33
34extern note_buf_t crash_notes[];
35
36extern void kexec_smp_wait(void); /* get and clear naca physid, wait for
37 master to copy new code to 0 */
38
39#endif /* __ASSEMBLY__ */
40#endif /* _PPC_KEXEC_H */
41