forked from Minki/linux
62a8bd6c92
linux/crash_dump.h defines is_kdump_kernel() to be used by code that needs to know if the previous kernel crashed instead of a (clean) boot or reboot. This updates the just added powerpc code to use it. This is needed for the next commit, which will remove __kdump_flag. Signed-off-by: Milton Miller <miltonm@bga.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
35 lines
926 B
C
35 lines
926 B
C
#ifndef _PPC64_KDUMP_H
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#define _PPC64_KDUMP_H
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/* Kdump kernel runs at 32 MB, change at your peril. */
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#define KDUMP_KERNELBASE 0x2000000
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/* How many bytes to reserve at zero for kdump. The reserve limit should
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* be greater or equal to the trampoline's end address.
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* Reserve to the end of the FWNMI area, see head_64.S */
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#define KDUMP_RESERVE_LIMIT 0x10000 /* 64K */
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#ifdef CONFIG_CRASH_DUMP
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#define KDUMP_TRAMPOLINE_START 0x0100
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#define KDUMP_TRAMPOLINE_END 0x3000
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#define KDUMP_MIN_TCE_ENTRIES 2048
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#endif /* CONFIG_CRASH_DUMP */
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#ifndef __ASSEMBLY__
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#if defined(CONFIG_CRASH_DUMP) && !defined(CONFIG_RELOCATABLE)
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extern void reserve_kdump_trampoline(void);
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extern void setup_kdump_trampoline(void);
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#else
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/* !CRASH_DUMP || RELOCATABLE */
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static inline void reserve_kdump_trampoline(void) { ; }
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static inline void setup_kdump_trampoline(void) { ; }
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#endif
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#endif /* __ASSEMBLY__ */
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#endif /* __PPC64_KDUMP_H */
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