47 lines
1.3 KiB
C
47 lines
1.3 KiB
C
|
#ifndef _PPC64_KDUMP_H
|
||
|
|
#define _PPC64_KDUMP_H
|
||
|
|
|
||
|
|
#include <asm/page.h>
|
||
|
|
|
||
|
|
#define KDUMP_KERNELBASE 0x2000000
|
||
|
|
|
||
|
|
/* How many bytes to reserve at zero for kdump. The reserve limit should
|
||
|
|
* be greater or equal to the trampoline's end address.
|
||
|
|
* Reserve to the end of the FWNMI area, see head_64.S */
|
||
|
|
#define KDUMP_RESERVE_LIMIT 0x10000 /* 64K */
|
||
|
|
|
||
|
|
#ifdef CONFIG_CRASH_DUMP
|
||
|
|
|
||
|
|
/*
|
||
|
|
* On PPC64 translation is disabled during trampoline setup, so we use
|
||
|
|
* physical addresses. Though on PPC32 translation is already enabled,
|
||
|
|
* so we can't do the same. Luckily create_trampoline() creates relative
|
||
|
|
* branches, so we can just add the PAGE_OFFSET and don't worry about it.
|
||
|
|
*/
|
||
|
|
#ifdef __powerpc64__
|
||
|
|
#define KDUMP_TRAMPOLINE_START 0x0100
|
||
|
|
#define KDUMP_TRAMPOLINE_END 0x3000
|
||
|
|
#else
|
||
|
|
#define KDUMP_TRAMPOLINE_START (0x0100 + PAGE_OFFSET)
|
||
|
|
#define KDUMP_TRAMPOLINE_END (0x3000 + PAGE_OFFSET)
|
||
|
|
#endif /* __powerpc64__ */
|
||
|
|
|
||
|
|
#define KDUMP_MIN_TCE_ENTRIES 2048
|
||
|
|
|
||
|
|
#endif /* CONFIG_CRASH_DUMP */
|
||
|
|
|
||
|
|
#ifndef __ASSEMBLY__
|
||
|
|
|
||
|
|
#if defined(CONFIG_CRASH_DUMP) && !defined(CONFIG_NONSTATIC_KERNEL)
|
||
|
|
extern void reserve_kdump_trampoline(void);
|
||
|
|
extern void setup_kdump_trampoline(void);
|
||
|
|
#else
|
||
|
|
/* !CRASH_DUMP || !NONSTATIC_KERNEL */
|
||
|
|
static inline void reserve_kdump_trampoline(void) { ; }
|
||
|
|
static inline void setup_kdump_trampoline(void) { ; }
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#endif /* __ASSEMBLY__ */
|
||
|
|
|
||
|
|
#endif /* __PPC64_KDUMP_H */
|