fadump.h

 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
14extern int crashing_cpu;
15
16extern int is_fadump_memory_area(u64 addr, ulong size);
17extern int setup_fadump(void);
18extern int is_fadump_active(void);
19extern int should_fadump_crash(void);
20extern void crash_fadump(struct pt_regs *, const char *);
21extern void fadump_cleanup(void);
22void fadump_setup_param_area(void);
23extern void fadump_append_bootargs(void);
24
25#else	/* CONFIG_FA_DUMP */
26static inline int is_fadump_active(void) { return 0; }
27static inline int should_fadump_crash(void) { return 0; }
28static inline void crash_fadump(struct pt_regs *regs, const char *str) { }
29static inline void fadump_cleanup(void) { }
30static inline void fadump_setup_param_area(void) { }
31static inline void fadump_append_bootargs(void) { }
32#endif /* !CONFIG_FA_DUMP */
33
34#if defined(CONFIG_FA_DUMP) || defined(CONFIG_PRESERVE_FA_DUMP)
35extern int early_init_dt_scan_fw_dump(unsigned long node, const char *uname,
36				      int depth, void *data);
37extern int fadump_reserve_mem(void);
38#endif
39
40#if defined(CONFIG_FA_DUMP) && defined(CONFIG_CMA)
41void fadump_cma_init(void);
42#else
43static inline void fadump_cma_init(void) { }
44#endif
45
46#endif /* _ASM_POWERPC_FADUMP_H */