| /* |
| * Copyright: (C) Copyright 2015 Marvell International Ltd. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License version 2 as |
| * publishhed by the Free Software Foundation. |
| * |
| * Author: Yan Markman (ymarkman@marvell.com) |
| * |
| * Utilities for ramdump.c debug capability extension: |
| * - Kernel-RO CRC16 check and reporting on panic |
| */ |
| |
| #ifndef _RAMDUMP_UTIL_H |
| #define _RAMDUMP_UTIL_H |
| |
| |
| /* Configuration */ |
| #define RAMDUMP_PHASE_1_1 /* allow KO's to work with older kernel */ |
| #define RAMDUMP_RDI /* allow detecting RDI interface is present */ |
| |
| /* EXPORT from ramdump.c; "internal" between ramdump and ramdump_util */ |
| extern unsigned ramdump_level; |
| /* 0: do not request ramdump at all |
| * 1: for panic only, ignore User-Space fatal signals and modems |
| * (used on "reboot" Graceful Shutdown) |
| * 2: always ramdump |
| * >2: same as 2, just for better debug |
| */ |
| #define RAMDUMP_LEVEL_PANIC_ONLY 1 |
| #define RAMDUMP_LEVEL_FULL 2 |
| #define RAMDUMP_LEVEL_FULL_IN_ADVANCE 3 |
| |
| int get_kernel_text_crc16_valid(void); /* returns: |
| *** 0 if OK, -1 if bad-crc, -2 if not accounted */ |
| int get_kernel_text_crc16_threaded_req(void); /* runs on thread */ |
| u16 get_kernel_text_crc16_on_panic(void); /* has huge blocking latency */ |
| void ramdump_ignore_fatal_signals(int on_shutdown); |
| |
| #endif/*_RAMDUMP_UTIL_H*/ |