94 static int self_check_not_bad(const struct ubi_device *ubi, int pnum);
95 static int self_check_peb_ec_hdr(const struct ubi_device *ubi, int pnum);
96 static int self_check_ec_hdr(const struct ubi_device *ubi, int pnum,
98 static int self_check_peb_vid_hdr(const struct ubi_device *ubi, int pnum);
99 static int self_check_vid_hdr(const struct ubi_device *ubi, int pnum,
101 static int self_check_write(struct ubi_device *ubi, const void *buf, int pnum,
126 int ubi_io_read(const struct ubi_device *ubi, void *buf, int pnum, int offset,  in ubi_io_read()  argument
133 	dbg_io("read %d bytes from PEB %d:%d", len, pnum, offset);  in ubi_io_read()
135 	ubi_assert(pnum >= 0 && pnum < ubi->peb_count);  in ubi_io_read()
139 	err = self_check_not_bad(ubi, pnum);  in ubi_io_read()
165 	addr = (loff_t)pnum * ubi->peb_size + offset;  in ubi_io_read()
181 				pnum);  in ubi_io_read()
188 				 err, errstr, len, pnum, offset, read);  in ubi_io_read()
194 			err, errstr, len, pnum, offset, read);  in ubi_io_read()
235 int ubi_io_write(struct ubi_device *ubi, const void *buf, int pnum, int offset,  in ubi_io_write()  argument
242 	dbg_io("write %d bytes to PEB %d:%d", len, pnum, offset);  in ubi_io_write()
244 	ubi_assert(pnum >= 0 && pnum < ubi->peb_count);  in ubi_io_write()
254 	err = self_check_not_bad(ubi, pnum);  in ubi_io_write()
259 	err = ubi_self_check_all_ff(ubi, pnum, offset, len);  in ubi_io_write()
268 		err = self_check_peb_ec_hdr(ubi, pnum);  in ubi_io_write()
271 		err = self_check_peb_vid_hdr(ubi, pnum);  in ubi_io_write()
278 			len, pnum, offset);  in ubi_io_write()
283 	addr = (loff_t)pnum * ubi->peb_size + offset;  in ubi_io_write()
287 			err, len, pnum, offset, written);  in ubi_io_write()
289 		ubi_dump_flash(ubi, pnum, offset, len);  in ubi_io_write()
294 		err = self_check_write(ubi, buf, pnum, offset, len);  in ubi_io_write()
305 			err = ubi_self_check_all_ff(ubi, pnum, offset, len);  in ubi_io_write()
332 static int do_sync_erase(struct ubi_device *ubi, int pnum)  in do_sync_erase()  argument
338 	dbg_io("erase PEB %d", pnum);  in do_sync_erase()
339 	ubi_assert(pnum >= 0 && pnum < ubi->peb_count);  in do_sync_erase()
351 	ei.addr     = (loff_t)pnum * ubi->peb_size;  in do_sync_erase()
360 				 err, pnum);  in do_sync_erase()
364 		ubi_err(ubi, "cannot erase PEB %d, error %d", pnum, err);  in do_sync_erase()
372 		ubi_err(ubi, "interrupted PEB %d erasure", pnum);  in do_sync_erase()
379 				 pnum);  in do_sync_erase()
383 		ubi_err(ubi, "cannot erase PEB %d", pnum);  in do_sync_erase()
388 	err = ubi_self_check_all_ff(ubi, pnum, 0, ubi->peb_size);  in do_sync_erase()
393 		ubi_err(ubi, "cannot erase PEB %d (emulated)", pnum);  in do_sync_erase()
412 static int torture_peb(struct ubi_device *ubi, int pnum)  in torture_peb()  argument
416 	ubi_msg(ubi, "run torture test for PEB %d", pnum);  in torture_peb()
422 		err = do_sync_erase(ubi, pnum);  in torture_peb()
427 		err = ubi_io_read(ubi, ubi->peb_buf, pnum, 0, ubi->peb_size);  in torture_peb()
434 				pnum);  in torture_peb()
441 		err = ubi_io_write(ubi, ubi->peb_buf, pnum, 0, ubi->peb_size);  in torture_peb()
446 		err = ubi_io_read(ubi, ubi->peb_buf, pnum, 0, ubi->peb_size);  in torture_peb()
454 				patterns[i], pnum);  in torture_peb()
461 	ubi_msg(ubi, "PEB %d passed torture test, do not mark it as bad", pnum);  in torture_peb()
472 			pnum);  in torture_peb()
498 static int nor_erase_prepare(struct ubi_device *ubi, int pnum)  in nor_erase_prepare()  argument
522 	addr = (loff_t)pnum * ubi->peb_size;  in nor_erase_prepare()
523 	err = ubi_io_read_ec_hdr(ubi, pnum, &ec_hdr, 0);  in nor_erase_prepare()
531 	err = ubi_io_read_vid_hdr(ubi, pnum, &vid_hdr, 0);  in nor_erase_prepare()
547 	ubi_err(ubi, "cannot invalidate PEB %d, write returned %d", pnum, err);  in nor_erase_prepare()
548 	ubi_dump_flash(ubi, pnum, 0, ubi->peb_size);  in nor_erase_prepare()
568 int ubi_io_sync_erase(struct ubi_device *ubi, int pnum, int torture)  in ubi_io_sync_erase()  argument
572 	ubi_assert(pnum >= 0 && pnum < ubi->peb_count);  in ubi_io_sync_erase()
574 	err = self_check_not_bad(ubi, pnum);  in ubi_io_sync_erase()
584 		err = nor_erase_prepare(ubi, pnum);  in ubi_io_sync_erase()
590 		ret = torture_peb(ubi, pnum);  in ubi_io_sync_erase()
595 	err = do_sync_erase(ubi, pnum);  in ubi_io_sync_erase()
610 int ubi_io_is_bad(const struct ubi_device *ubi, int pnum)  in ubi_io_is_bad()  argument
614 	ubi_assert(pnum >= 0 && pnum < ubi->peb_count);  in ubi_io_is_bad()
619 		ret = mtd_block_isbad(mtd, (loff_t)pnum * ubi->peb_size);  in ubi_io_is_bad()
622 				ret, pnum);  in ubi_io_is_bad()
624 			dbg_io("PEB %d is bad", pnum);  in ubi_io_is_bad()
639 int ubi_io_mark_bad(const struct ubi_device *ubi, int pnum)  in ubi_io_mark_bad()  argument
644 	ubi_assert(pnum >= 0 && pnum < ubi->peb_count);  in ubi_io_mark_bad()
654 	err = mtd_block_markbad(mtd, (loff_t)pnum * ubi->peb_size);  in ubi_io_mark_bad()
656 		ubi_err(ubi, "cannot mark PEB %d bad, error %d", pnum, err);  in ubi_io_mark_bad()
732 int ubi_io_read_ec_hdr(struct ubi_device *ubi, int pnum,  in ubi_io_read_ec_hdr()  argument
738 	dbg_io("read EC header from PEB %d", pnum);  in ubi_io_read_ec_hdr()
739 	ubi_assert(pnum >= 0 && pnum < ubi->peb_count);  in ubi_io_read_ec_hdr()
741 	read_err = ubi_io_read(ubi, ec_hdr, pnum, 0, UBI_EC_HDR_SIZE);  in ubi_io_read_ec_hdr()
771 					 pnum);  in ubi_io_read_ec_hdr()
773 				pnum);  in ubi_io_read_ec_hdr()
786 				 pnum, magic, UBI_EC_HDR_MAGIC);  in ubi_io_read_ec_hdr()
790 			pnum, magic, UBI_EC_HDR_MAGIC);  in ubi_io_read_ec_hdr()
800 				 pnum, crc, hdr_crc);  in ubi_io_read_ec_hdr()
804 			pnum, crc, hdr_crc);  in ubi_io_read_ec_hdr()
815 		ubi_err(ubi, "validation failed for PEB %d", pnum);  in ubi_io_read_ec_hdr()
841 int ubi_io_write_ec_hdr(struct ubi_device *ubi, int pnum,  in ubi_io_write_ec_hdr()  argument
847 	dbg_io("write EC header to PEB %d", pnum);  in ubi_io_write_ec_hdr()
848 	ubi_assert(pnum >= 0 &&  pnum < ubi->peb_count);  in ubi_io_write_ec_hdr()
858 	err = self_check_ec_hdr(ubi, pnum, ec_hdr);  in ubi_io_write_ec_hdr()
865 	err = ubi_io_write(ubi, ec_hdr, pnum, 0, ubi->ec_hdr_alsize);  in ubi_io_write_ec_hdr()
1010 int ubi_io_read_vid_hdr(struct ubi_device *ubi, int pnum,  in ubi_io_read_vid_hdr()  argument
1017 	dbg_io("read VID header from PEB %d", pnum);  in ubi_io_read_vid_hdr()
1018 	ubi_assert(pnum >= 0 &&  pnum < ubi->peb_count);  in ubi_io_read_vid_hdr()
1021 	read_err = ubi_io_read(ubi, p, pnum, ubi->vid_hdr_aloffset,  in ubi_io_read_vid_hdr()
1034 					 pnum);  in ubi_io_read_vid_hdr()
1036 				pnum);  in ubi_io_read_vid_hdr()
1045 				 pnum, magic, UBI_VID_HDR_MAGIC);  in ubi_io_read_vid_hdr()
1049 			pnum, magic, UBI_VID_HDR_MAGIC);  in ubi_io_read_vid_hdr()
1059 				 pnum, crc, hdr_crc);  in ubi_io_read_vid_hdr()
1063 			pnum, crc, hdr_crc);  in ubi_io_read_vid_hdr()
1072 		ubi_err(ubi, "validation failed for PEB %d", pnum);  in ubi_io_read_vid_hdr()
1094 int ubi_io_write_vid_hdr(struct ubi_device *ubi, int pnum,  in ubi_io_write_vid_hdr()  argument
1101 	dbg_io("write VID header to PEB %d", pnum);  in ubi_io_write_vid_hdr()
1102 	ubi_assert(pnum >= 0 &&  pnum < ubi->peb_count);  in ubi_io_write_vid_hdr()
1104 	err = self_check_peb_ec_hdr(ubi, pnum);  in ubi_io_write_vid_hdr()
1113 	err = self_check_vid_hdr(ubi, pnum, vid_hdr);  in ubi_io_write_vid_hdr()
1121 	err = ubi_io_write(ubi, p, pnum, ubi->vid_hdr_aloffset,  in ubi_io_write_vid_hdr()
1134 static int self_check_not_bad(const struct ubi_device *ubi, int pnum)  in self_check_not_bad()  argument
1141 	err = ubi_io_is_bad(ubi, pnum);  in self_check_not_bad()
1145 	ubi_err(ubi, "self-check failed for PEB %d", pnum);  in self_check_not_bad()
1159 static int self_check_ec_hdr(const struct ubi_device *ubi, int pnum,  in self_check_ec_hdr()  argument
1177 		ubi_err(ubi, "self-check failed for PEB %d", pnum);  in self_check_ec_hdr()
1197 static int self_check_peb_ec_hdr(const struct ubi_device *ubi, int pnum)  in self_check_peb_ec_hdr()  argument
1210 	err = ubi_io_read(ubi, ec_hdr, pnum, 0, UBI_EC_HDR_SIZE);  in self_check_peb_ec_hdr()
1219 		ubi_err(ubi, "self-check failed for PEB %d", pnum);  in self_check_peb_ec_hdr()
1226 	err = self_check_ec_hdr(ubi, pnum, ec_hdr);  in self_check_peb_ec_hdr()
1242 static int self_check_vid_hdr(const struct ubi_device *ubi, int pnum,  in self_check_vid_hdr()  argument
1254 			magic, pnum, UBI_VID_HDR_MAGIC);  in self_check_vid_hdr()
1260 		ubi_err(ubi, "self-check failed for PEB %d", pnum);  in self_check_vid_hdr()
1267 	ubi_err(ubi, "self-check failed for PEB %d", pnum);  in self_check_vid_hdr()
1282 static int self_check_peb_vid_hdr(const struct ubi_device *ubi, int pnum)  in self_check_peb_vid_hdr()  argument
1297 	err = ubi_io_read(ubi, p, pnum, ubi->vid_hdr_aloffset,  in self_check_peb_vid_hdr()
1306 			pnum, crc, hdr_crc);  in self_check_peb_vid_hdr()
1307 		ubi_err(ubi, "self-check failed for PEB %d", pnum);  in self_check_peb_vid_hdr()
1314 	err = self_check_vid_hdr(ubi, pnum, vid_hdr);  in self_check_peb_vid_hdr()
1333 static int self_check_write(struct ubi_device *ubi, const void *buf, int pnum,  in self_check_write()  argument
1339 	loff_t addr = (loff_t)pnum * ubi->peb_size + offset;  in self_check_write()
1363 			pnum, offset, len);  in self_check_write()
1398 int ubi_self_check_all_ff(struct ubi_device *ubi, int pnum, int offset, int len)  in ubi_self_check_all_ff()  argument
1403 	loff_t addr = (loff_t)pnum * ubi->peb_size + offset;  in ubi_self_check_all_ff()
1417 			err, len, pnum, offset, read);  in ubi_self_check_all_ff()
1424 			pnum, offset, len);  in ubi_self_check_all_ff()
1432 	ubi_err(ubi, "self-check failed for PEB %d", pnum);  in ubi_self_check_all_ff()