1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* 3 * Firmware Assisted dump header file. 4 * 5 * Copyright 2011 IBM Corporation 6 * Author: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com> 7 */ 8 9 #ifndef _ASM_POWERPC_FADUMP_H 10 #define _ASM_POWERPC_FADUMP_H 11 12 #ifdef CONFIG_FA_DUMP 13 14 extern int crashing_cpu; 15 16 extern int is_fadump_memory_area(u64 addr, ulong size); 17 extern int setup_fadump(void); 18 extern int is_fadump_active(void); 19 extern int should_fadump_crash(void); 20 extern void crash_fadump(struct pt_regs *, const char *); 21 extern void fadump_cleanup(void); 22 void fadump_setup_param_area(void); 23 extern void fadump_append_bootargs(void); 24 25 #else /* CONFIG_FA_DUMP */ 26 static inline int is_fadump_active(void) { return 0; } 27 static inline int should_fadump_crash(void) { return 0; } 28 static inline void crash_fadump(struct pt_regs *regs, const char *str) { } 29 static inline void fadump_cleanup(void) { } 30 static inline void fadump_setup_param_area(void) { } 31 static inline void fadump_append_bootargs(void) { } 32 #endif /* !CONFIG_FA_DUMP */ 33 34 #if defined(CONFIG_FA_DUMP) || defined(CONFIG_PRESERVE_FA_DUMP) 35 extern int early_init_dt_scan_fw_dump(unsigned long node, const char *uname, 36 int depth, void *data); 37 extern int fadump_reserve_mem(void); 38 #endif 39 40 #if defined(CONFIG_FA_DUMP) && defined(CONFIG_CMA) 41 void fadump_cma_init(void); 42 #else 43 static inline void fadump_cma_init(void) { } 44 #endif 45 46 #endif /* _ASM_POWERPC_FADUMP_H */ 47