forked from Minki/linux
473104134b
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>
39 lines
959 B
C
39 lines
959 B
C
#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.
|
|
* 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
|
|
|
|
#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 */
|