#ifndef _PPC64_KDUMP_H #define _PPC64_KDUMP_H #include #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 */