| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright: (C) Copyright 2015 Marvell International Ltd. |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or modify |
| 5 | * it under the terms of the GNU General Public License version 2 as |
| 6 | * publishhed by the Free Software Foundation. |
| 7 | * |
| 8 | * Author: Yan Markman (ymarkman@marvell.com) |
| 9 | * |
| 10 | * Utilities for ramdump.c debug capability extension: |
| 11 | * - Kernel-RO CRC16 check and reporting on panic |
| 12 | */ |
| 13 | |
| 14 | #ifndef _RAMDUMP_UTIL_H |
| 15 | #define _RAMDUMP_UTIL_H |
| 16 | |
| 17 | |
| 18 | /* Configuration */ |
| 19 | #define RAMDUMP_PHASE_1_1 /* allow KO's to work with older kernel */ |
| 20 | #define RAMDUMP_RDI /* allow detecting RDI interface is present */ |
| 21 | |
| 22 | /* EXPORT from ramdump.c; "internal" between ramdump and ramdump_util */ |
| 23 | extern unsigned ramdump_level; |
| 24 | /* 0: do not request ramdump at all |
| 25 | * 1: for panic only, ignore User-Space fatal signals and modems |
| 26 | * (used on "reboot" Graceful Shutdown) |
| 27 | * 2: always ramdump |
| 28 | * >2: same as 2, just for better debug |
| 29 | */ |
| 30 | #define RAMDUMP_LEVEL_PANIC_ONLY 1 |
| 31 | #define RAMDUMP_LEVEL_FULL 2 |
| 32 | #define RAMDUMP_LEVEL_FULL_IN_ADVANCE 3 |
| 33 | |
| 34 | int get_kernel_text_crc16_valid(void); /* returns: |
| 35 | *** 0 if OK, -1 if bad-crc, -2 if not accounted */ |
| 36 | int get_kernel_text_crc16_threaded_req(void); /* runs on thread */ |
| 37 | u16 get_kernel_text_crc16_on_panic(void); /* has huge blocking latency */ |
| 38 | void ramdump_ignore_fatal_signals(int on_shutdown); |
| 39 | |
| 40 | #endif/*_RAMDUMP_UTIL_H*/ |