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129 lines
4.0 KiB
129 lines
4.0 KiB
/* SPDX-License-Identifier: GPL-2.0-or-later */ |
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/* |
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* Copyright (c) International Business Machines Corp., 2006 |
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* |
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* Author: Artem Bityutskiy (Битюцкий Артём) |
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*/ |
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#ifndef __UBI_DEBUG_H__ |
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#define __UBI_DEBUG_H__ |
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void ubi_dump_flash(struct ubi_device *ubi, int pnum, int offset, int len); |
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void ubi_dump_ec_hdr(const struct ubi_ec_hdr *ec_hdr); |
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void ubi_dump_vid_hdr(const struct ubi_vid_hdr *vid_hdr); |
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#include <linux/random.h> |
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#define ubi_assert(expr) do { \ |
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if (unlikely(!(expr))) { \ |
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pr_crit("UBI assert failed in %s at %u (pid %d)\n", \ |
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__func__, __LINE__, current->pid); \ |
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dump_stack(); \ |
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} \ |
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} while (0) |
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#define ubi_dbg_print_hex_dump(l, ps, pt, r, g, b, len, a) \ |
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print_hex_dump(l, ps, pt, r, g, b, len, a) |
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#define ubi_dbg_msg(type, fmt, ...) \ |
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pr_debug("UBI DBG " type " (pid %d): " fmt "\n", current->pid, \ |
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##__VA_ARGS__) |
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/* General debugging messages */ |
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#define dbg_gen(fmt, ...) ubi_dbg_msg("gen", fmt, ##__VA_ARGS__) |
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/* Messages from the eraseblock association sub-system */ |
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#define dbg_eba(fmt, ...) ubi_dbg_msg("eba", fmt, ##__VA_ARGS__) |
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/* Messages from the wear-leveling sub-system */ |
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#define dbg_wl(fmt, ...) ubi_dbg_msg("wl", fmt, ##__VA_ARGS__) |
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/* Messages from the input/output sub-system */ |
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#define dbg_io(fmt, ...) ubi_dbg_msg("io", fmt, ##__VA_ARGS__) |
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/* Initialization and build messages */ |
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#define dbg_bld(fmt, ...) ubi_dbg_msg("bld", fmt, ##__VA_ARGS__) |
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void ubi_dump_vol_info(const struct ubi_volume *vol); |
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void ubi_dump_vtbl_record(const struct ubi_vtbl_record *r, int idx); |
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void ubi_dump_av(const struct ubi_ainf_volume *av); |
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void ubi_dump_aeb(const struct ubi_ainf_peb *aeb, int type); |
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void ubi_dump_mkvol_req(const struct ubi_mkvol_req *req); |
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int ubi_self_check_all_ff(struct ubi_device *ubi, int pnum, int offset, |
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int len); |
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int ubi_debugfs_init(void); |
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void ubi_debugfs_exit(void); |
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int ubi_debugfs_init_dev(struct ubi_device *ubi); |
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void ubi_debugfs_exit_dev(struct ubi_device *ubi); |
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/** |
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* ubi_dbg_is_bgt_disabled - if the background thread is disabled. |
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* @ubi: UBI device description object |
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* |
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* Returns non-zero if the UBI background thread is disabled for testing |
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* purposes. |
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*/ |
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static inline int ubi_dbg_is_bgt_disabled(const struct ubi_device *ubi) |
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{ |
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return ubi->dbg.disable_bgt; |
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} |
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/** |
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* ubi_dbg_is_bitflip - if it is time to emulate a bit-flip. |
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* @ubi: UBI device description object |
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* |
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* Returns non-zero if a bit-flip should be emulated, otherwise returns zero. |
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*/ |
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static inline int ubi_dbg_is_bitflip(const struct ubi_device *ubi) |
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{ |
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if (ubi->dbg.emulate_bitflips) |
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return !prandom_u32_max(200); |
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return 0; |
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} |
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/** |
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* ubi_dbg_is_write_failure - if it is time to emulate a write failure. |
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* @ubi: UBI device description object |
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* |
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* Returns non-zero if a write failure should be emulated, otherwise returns |
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* zero. |
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*/ |
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static inline int ubi_dbg_is_write_failure(const struct ubi_device *ubi) |
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{ |
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if (ubi->dbg.emulate_io_failures) |
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return !prandom_u32_max(500); |
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return 0; |
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} |
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/** |
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* ubi_dbg_is_erase_failure - if its time to emulate an erase failure. |
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* @ubi: UBI device description object |
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* |
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* Returns non-zero if an erase failure should be emulated, otherwise returns |
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* zero. |
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*/ |
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static inline int ubi_dbg_is_erase_failure(const struct ubi_device *ubi) |
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{ |
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if (ubi->dbg.emulate_io_failures) |
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return !prandom_u32_max(400); |
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return 0; |
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} |
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static inline int ubi_dbg_chk_io(const struct ubi_device *ubi) |
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{ |
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return ubi->dbg.chk_io; |
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} |
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static inline int ubi_dbg_chk_gen(const struct ubi_device *ubi) |
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{ |
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return ubi->dbg.chk_gen; |
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} |
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static inline int ubi_dbg_chk_fastmap(const struct ubi_device *ubi) |
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{ |
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return ubi->dbg.chk_fastmap; |
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} |
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static inline void ubi_enable_dbg_chk_fastmap(struct ubi_device *ubi) |
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{ |
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ubi->dbg.chk_fastmap = 1; |
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} |
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int ubi_dbg_power_cut(struct ubi_device *ubi, int caller); |
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#endif /* !__UBI_DEBUG_H__ */
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