arch/powerpc/include/asm/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
  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 */