^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) /* SPDX-License-Identifier: GPL-2.0-or-later */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Copyright (c) International Business Machines Corp., 2006
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Author: Artem Bityutskiy (Битюцкий Артём)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #ifndef __UBI_DEBUG_H__
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #define __UBI_DEBUG_H__
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) void ubi_dump_flash(struct ubi_device *ubi, int pnum, int offset, int len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) void ubi_dump_ec_hdr(const struct ubi_ec_hdr *ec_hdr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) void ubi_dump_vid_hdr(const struct ubi_vid_hdr *vid_hdr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/random.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #define ubi_assert(expr) do { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) if (unlikely(!(expr))) { \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) pr_crit("UBI assert failed in %s at %u (pid %d)\n", \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) __func__, __LINE__, current->pid); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) dump_stack(); \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) } \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) } while (0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) #define ubi_dbg_print_hex_dump(l, ps, pt, r, g, b, len, a) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) print_hex_dump(l, ps, pt, r, g, b, len, a)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #define ubi_dbg_msg(type, fmt, ...) \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) pr_debug("UBI DBG " type " (pid %d): " fmt "\n", current->pid, \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) ##__VA_ARGS__)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) /* General debugging messages */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) #define dbg_gen(fmt, ...) ubi_dbg_msg("gen", fmt, ##__VA_ARGS__)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) /* Messages from the eraseblock association sub-system */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) #define dbg_eba(fmt, ...) ubi_dbg_msg("eba", fmt, ##__VA_ARGS__)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) /* Messages from the wear-leveling sub-system */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) #define dbg_wl(fmt, ...) ubi_dbg_msg("wl", fmt, ##__VA_ARGS__)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) /* Messages from the input/output sub-system */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) #define dbg_io(fmt, ...) ubi_dbg_msg("io", fmt, ##__VA_ARGS__)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) /* Initialization and build messages */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) #define dbg_bld(fmt, ...) ubi_dbg_msg("bld", fmt, ##__VA_ARGS__)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) void ubi_dump_vol_info(const struct ubi_volume *vol);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) void ubi_dump_vtbl_record(const struct ubi_vtbl_record *r, int idx);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) void ubi_dump_av(const struct ubi_ainf_volume *av);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) void ubi_dump_aeb(const struct ubi_ainf_peb *aeb, int type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) void ubi_dump_mkvol_req(const struct ubi_mkvol_req *req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) int ubi_self_check_all_ff(struct ubi_device *ubi, int pnum, int offset,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) int len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) int ubi_debugfs_init(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) void ubi_debugfs_exit(void);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) int ubi_debugfs_init_dev(struct ubi_device *ubi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) void ubi_debugfs_exit_dev(struct ubi_device *ubi);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) * ubi_dbg_is_bgt_disabled - if the background thread is disabled.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) * @ubi: UBI device description object
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) * Returns non-zero if the UBI background thread is disabled for testing
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) * purposes.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) static inline int ubi_dbg_is_bgt_disabled(const struct ubi_device *ubi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) return ubi->dbg.disable_bgt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) * ubi_dbg_is_bitflip - if it is time to emulate a bit-flip.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) * @ubi: UBI device description object
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) * Returns non-zero if a bit-flip should be emulated, otherwise returns zero.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) static inline int ubi_dbg_is_bitflip(const struct ubi_device *ubi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) if (ubi->dbg.emulate_bitflips)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) return !(prandom_u32() % 200);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) * ubi_dbg_is_write_failure - if it is time to emulate a write failure.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) * @ubi: UBI device description object
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) * Returns non-zero if a write failure should be emulated, otherwise returns
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) * zero.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) static inline int ubi_dbg_is_write_failure(const struct ubi_device *ubi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) if (ubi->dbg.emulate_io_failures)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) return !(prandom_u32() % 500);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) * ubi_dbg_is_erase_failure - if its time to emulate an erase failure.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) * @ubi: UBI device description object
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) * Returns non-zero if an erase failure should be emulated, otherwise returns
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) * zero.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) static inline int ubi_dbg_is_erase_failure(const struct ubi_device *ubi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) if (ubi->dbg.emulate_io_failures)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) return !(prandom_u32() % 400);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) static inline int ubi_dbg_chk_io(const struct ubi_device *ubi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) return ubi->dbg.chk_io;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) static inline int ubi_dbg_chk_gen(const struct ubi_device *ubi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) return ubi->dbg.chk_gen;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) static inline int ubi_dbg_chk_fastmap(const struct ubi_device *ubi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) return ubi->dbg.chk_fastmap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) static inline void ubi_enable_dbg_chk_fastmap(struct ubi_device *ubi)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) ubi->dbg.chk_fastmap = 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) int ubi_dbg_power_cut(struct ubi_device *ubi, int caller);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) #endif /* !__UBI_DEBUG_H__ */
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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