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 
23 #else	/* CONFIG_FA_DUMP */
is_fadump_active(void)24 static inline int is_fadump_active(void) { return 0; }
should_fadump_crash(void)25 static inline int should_fadump_crash(void) { return 0; }
crash_fadump(struct pt_regs * regs,const char * str)26 static inline void crash_fadump(struct pt_regs *regs, const char *str) { }
fadump_cleanup(void)27 static inline void fadump_cleanup(void) { }
28 #endif /* !CONFIG_FA_DUMP */
29 
30 #if defined(CONFIG_FA_DUMP) || defined(CONFIG_PRESERVE_FA_DUMP)
31 extern int early_init_dt_scan_fw_dump(unsigned long node, const char *uname,
32 				      int depth, void *data);
33 extern int fadump_reserve_mem(void);
34 #endif
35 #endif /* _ASM_POWERPC_FADUMP_H */
36