include/asm/fadump.h

0001 /* SPDX-License-Identifier: GPL-2.0-or-later */
0002 /*
0003  * Firmware Assisted dump header file.
0004  *
0005  * Copyright 2011 IBM Corporation
0006  * Author: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com>
0007  */
0008
0009 #ifndef _ASM_POWERPC_FADUMP_H
0010 #define _ASM_POWERPC_FADUMP_H
0011
0012 #ifdef CONFIG_FA_DUMP
0013
0014 extern int crashing_cpu;
0015
0016 extern int is_fadump_memory_area(u64 addr, ulong size);
0017 extern int setup_fadump(void);
0018 extern int is_fadump_active(void);
0019 extern int should_fadump_crash(void);
0020 extern void crash_fadump(struct pt_regs *, const char *);
0021 extern void fadump_cleanup(void);
0022
0023 #else   /* CONFIG_FA_DUMP */
0024 static inline int is_fadump_active(void) { return 0; }
0025 static inline int should_fadump_crash(void) { return 0; }
0026 static inline void crash_fadump(struct pt_regs *regs, const char *str) { }
0027 static inline void fadump_cleanup(void) { }
0028 #endif /* !CONFIG_FA_DUMP */
0029
0030 #if defined(CONFIG_FA_DUMP) || defined(CONFIG_PRESERVE_FA_DUMP)
0031 extern int early_init_dt_scan_fw_dump(unsigned long node, const char *uname,
0032                       int depth, void *data);
0033 extern int fadump_reserve_mem(void);
0034 #endif
0035 #endif /* _ASM_POWERPC_FADUMP_H */