kdump.h (55fa518867978e1f5fd8353098f80d125ac734d7) kdump.h (f8f50b1bddd49eb171398cfc543c957884dc6e35)
1#ifndef _PPC64_KDUMP_H
2#define _PPC64_KDUMP_H
3
1#ifndef _PPC64_KDUMP_H
2#define _PPC64_KDUMP_H
3
4#include <asm/page.h>
5
4/* Kdump kernel runs at 32 MB, change at your peril. */
5#define KDUMP_KERNELBASE 0x2000000
6
7/* How many bytes to reserve at zero for kdump. The reserve limit should
8 * be greater or equal to the trampoline's end address.
9 * Reserve to the end of the FWNMI area, see head_64.S */
10#define KDUMP_RESERVE_LIMIT 0x10000 /* 64K */
11
12#ifdef CONFIG_CRASH_DUMP
13
6/* Kdump kernel runs at 32 MB, change at your peril. */
7#define KDUMP_KERNELBASE 0x2000000
8
9/* How many bytes to reserve at zero for kdump. The reserve limit should
10 * be greater or equal to the trampoline's end address.
11 * Reserve to the end of the FWNMI area, see head_64.S */
12#define KDUMP_RESERVE_LIMIT 0x10000 /* 64K */
13
14#ifdef CONFIG_CRASH_DUMP
15
16/*
17 * On PPC64 translation is disabled during trampoline setup, so we use
18 * physical addresses. Though on PPC32 translation is already enabled,
19 * so we can't do the same. Luckily create_trampoline() creates relative
20 * branches, so we can just add the PAGE_OFFSET and don't worry about it.
21 */
22#ifdef __powerpc64__
14#define KDUMP_TRAMPOLINE_START 0x0100
15#define KDUMP_TRAMPOLINE_END 0x3000
23#define KDUMP_TRAMPOLINE_START 0x0100
24#define KDUMP_TRAMPOLINE_END 0x3000
25#else
26#define KDUMP_TRAMPOLINE_START (0x0100 + PAGE_OFFSET)
27#define KDUMP_TRAMPOLINE_END (0x3000 + PAGE_OFFSET)
28#endif /* __powerpc64__ */
16
17#define KDUMP_MIN_TCE_ENTRIES 2048
18
19#endif /* CONFIG_CRASH_DUMP */
20
21#ifndef __ASSEMBLY__
22
23#if defined(CONFIG_CRASH_DUMP) && !defined(CONFIG_RELOCATABLE)
24extern void reserve_kdump_trampoline(void);
25extern void setup_kdump_trampoline(void);
26#else
27/* !CRASH_DUMP || RELOCATABLE */
28static inline void reserve_kdump_trampoline(void) { ; }
29static inline void setup_kdump_trampoline(void) { ; }
30#endif
31
32#endif /* __ASSEMBLY__ */
33
34#endif /* __PPC64_KDUMP_H */
29
30#define KDUMP_MIN_TCE_ENTRIES 2048
31
32#endif /* CONFIG_CRASH_DUMP */
33
34#ifndef __ASSEMBLY__
35
36#if defined(CONFIG_CRASH_DUMP) && !defined(CONFIG_RELOCATABLE)
37extern void reserve_kdump_trampoline(void);
38extern void setup_kdump_trampoline(void);
39#else
40/* !CRASH_DUMP || RELOCATABLE */
41static inline void reserve_kdump_trampoline(void) { ; }
42static inline void setup_kdump_trampoline(void) { ; }
43#endif
44
45#endif /* __ASSEMBLY__ */
46
47#endif /* __PPC64_KDUMP_H */