131 lines
4.4 KiB
C
131 lines
4.4 KiB
C
/*
|
|
* Copyright (c) International Business Machines Corp., 2006
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
|
|
* the GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*
|
|
* Author: Artem Bityutskiy (Битюцкий Артём)
|
|
*/
|
|
|
|
#ifndef __UBI_DEBUG_H__
|
|
#define __UBI_DEBUG_H__
|
|
|
|
void ubi_dump_flash(struct ubi_device *ubi, int pnum, int offset, int len);
|
|
void ubi_dump_ec_hdr(const struct ubi_ec_hdr *ec_hdr);
|
|
void ubi_dump_vid_hdr(const struct ubi_vid_hdr *vid_hdr);
|
|
|
|
#include <linux/random.h>
|
|
|
|
#define ubi_assert(expr) do { \
|
|
if (unlikely(!(expr))) { \
|
|
pr_crit("UBI assert failed in %s at %u (pid %d)\n", \
|
|
__func__, __LINE__, current->pid); \
|
|
dump_stack(); \
|
|
} \
|
|
} while (0)
|
|
|
|
#define ubi_dbg_print_hex_dump(l, ps, pt, r, g, b, len, a) \
|
|
print_hex_dump(l, ps, pt, r, g, b, len, a)
|
|
|
|
#define ubi_dbg_msg(type, fmt, ...) \
|
|
pr_debug("UBI DBG " type " (pid %d): " fmt "\n", current->pid, \
|
|
##__VA_ARGS__)
|
|
|
|
/* General debugging messages */
|
|
#define dbg_gen(fmt, ...) ubi_dbg_msg("gen", fmt, ##__VA_ARGS__)
|
|
/* Messages from the eraseblock association sub-system */
|
|
#define dbg_eba(fmt, ...) ubi_dbg_msg("eba", fmt, ##__VA_ARGS__)
|
|
/* Messages from the wear-leveling sub-system */
|
|
#define dbg_wl(fmt, ...) ubi_dbg_msg("wl", fmt, ##__VA_ARGS__)
|
|
/* Messages from the input/output sub-system */
|
|
#define dbg_io(fmt, ...) ubi_dbg_msg("io", fmt, ##__VA_ARGS__)
|
|
/* Initialization and build messages */
|
|
#define dbg_bld(fmt, ...) ubi_dbg_msg("bld", fmt, ##__VA_ARGS__)
|
|
|
|
void ubi_dump_vol_info(const struct ubi_volume *vol);
|
|
void ubi_dump_vtbl_record(const struct ubi_vtbl_record *r, int idx);
|
|
void ubi_dump_av(const struct ubi_ainf_volume *av);
|
|
void ubi_dump_aeb(const struct ubi_ainf_peb *aeb, int type);
|
|
void ubi_dump_mkvol_req(const struct ubi_mkvol_req *req);
|
|
int ubi_self_check_all_ff(struct ubi_device *ubi, int pnum, int offset,
|
|
int len);
|
|
int ubi_debugfs_init(void);
|
|
void ubi_debugfs_exit(void);
|
|
int ubi_debugfs_init_dev(struct ubi_device *ubi);
|
|
void ubi_debugfs_exit_dev(struct ubi_device *ubi);
|
|
|
|
/**
|
|
* ubi_dbg_is_bgt_disabled - if the background thread is disabled.
|
|
* @ubi: UBI device description object
|
|
*
|
|
* Returns non-zero if the UBI background thread is disabled for testing
|
|
* purposes.
|
|
*/
|
|
static inline int ubi_dbg_is_bgt_disabled(const struct ubi_device *ubi)
|
|
{
|
|
return ubi->dbg.disable_bgt;
|
|
}
|
|
|
|
/**
|
|
* ubi_dbg_is_bitflip - if it is time to emulate a bit-flip.
|
|
* @ubi: UBI device description object
|
|
*
|
|
* Returns non-zero if a bit-flip should be emulated, otherwise returns zero.
|
|
*/
|
|
static inline int ubi_dbg_is_bitflip(const struct ubi_device *ubi)
|
|
{
|
|
if (ubi->dbg.emulate_bitflips)
|
|
return !(prandom_u32() % 200);
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* ubi_dbg_is_write_failure - if it is time to emulate a write failure.
|
|
* @ubi: UBI device description object
|
|
*
|
|
* Returns non-zero if a write failure should be emulated, otherwise returns
|
|
* zero.
|
|
*/
|
|
static inline int ubi_dbg_is_write_failure(const struct ubi_device *ubi)
|
|
{
|
|
if (ubi->dbg.emulate_io_failures)
|
|
return !(prandom_u32() % 500);
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* ubi_dbg_is_erase_failure - if its time to emulate an erase failure.
|
|
* @ubi: UBI device description object
|
|
*
|
|
* Returns non-zero if an erase failure should be emulated, otherwise returns
|
|
* zero.
|
|
*/
|
|
static inline int ubi_dbg_is_erase_failure(const struct ubi_device *ubi)
|
|
{
|
|
if (ubi->dbg.emulate_io_failures)
|
|
return !(prandom_u32() % 400);
|
|
return 0;
|
|
}
|
|
|
|
static inline int ubi_dbg_chk_io(const struct ubi_device *ubi)
|
|
{
|
|
return ubi->dbg.chk_io;
|
|
}
|
|
|
|
static inline int ubi_dbg_chk_gen(const struct ubi_device *ubi)
|
|
{
|
|
return ubi->dbg.chk_gen;
|
|
}
|
|
#endif /* !__UBI_DEBUG_H__ */
|