diff options
| author | Michael Ellerman <michael@ellerman.id.au> | 2006-05-17 18:00:49 +1000 |
|---|---|---|
| committer | Paul Mackerras <paulus@samba.org> | 2006-05-19 15:02:16 +1000 |
| commit | 473104134b35ce1c3ca77b738c561d6c215adc1b (patch) | |
| tree | 979ccd57fe0695a66287d5f09fd3781e16cd1faa /include/asm-powerpc/kdump.h | |
| parent | 2babf5c2ec2f2d5de3e38d20f7df7fd815fd10c9 (diff) | |
[PATCH] powerpc: Kdump header cleanup
We need to know the base address of the kdump kernel even when we're not a
kdump kernel, so add a #define for it. Move the logic that sets the kdump
kernelbase into kdump.h instead of page.h.
Rename kdump_setup() to setup_kdump_trampoline() to make it clearer what it's
doing, and add an empty definition for the !CRASH_DUMP case to avoid a
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'include/asm-powerpc/kdump.h')
| -rw-r--r-- | include/asm-powerpc/kdump.h | 29 |
1 files changed, 27 insertions, 2 deletions
diff --git a/include/asm-powerpc/kdump.h b/include/asm-powerpc/kdump.h index a87aed00d61..5a5c3b5ab1e 100644 --- a/include/asm-powerpc/kdump.h +++ b/include/asm-powerpc/kdump.h @@ -1,13 +1,38 @@ #ifndef _PPC64_KDUMP_H #define _PPC64_KDUMP_H +/* Kdump kernel runs at 32 MB, change at your peril. */ +#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. */ + * 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 0x8000 +#ifdef CONFIG_CRASH_DUMP + +#define PHYSICAL_START KDUMP_KERNELBASE #define KDUMP_TRAMPOLINE_START 0x0100 #define KDUMP_TRAMPOLINE_END 0x3000 -extern void kdump_setup(void); +#else /* !CONFIG_CRASH_DUMP */ + +#define PHYSICAL_START 0x0 + +#endif /* CONFIG_CRASH_DUMP */ + +#ifndef __ASSEMBLY__ +#ifdef CONFIG_CRASH_DUMP + +extern void reserve_kdump_trampoline(void); +extern void setup_kdump_trampoline(void); + +#else /* !CONFIG_CRASH_DUMP */ + +static inline void reserve_kdump_trampoline(void) { ; } +static inline void setup_kdump_trampoline(void) { ; } + +#endif /* CONFIG_CRASH_DUMP */ +#endif /* __ASSEMBLY__ */ #endif /* __PPC64_KDUMP_H */ |