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()
320 static int do_sync_erase(struct ubi_device *ubi, int pnum)  in do_sync_erase()  argument
325 	dbg_io("erase PEB %d", pnum);  in do_sync_erase()
326 	ubi_assert(pnum >= 0 && pnum < ubi->peb_count);  in do_sync_erase()
336 	ei.addr     = (loff_t)pnum * ubi->peb_size;  in do_sync_erase()
343 				 err, pnum);  in do_sync_erase()
347 		ubi_err(ubi, "cannot erase PEB %d, error %d", pnum, err);  in do_sync_erase()
352 	err = ubi_self_check_all_ff(ubi, pnum, 0, ubi->peb_size);  in do_sync_erase()
357 		ubi_err(ubi, "cannot erase PEB %d (emulated)", pnum);  in do_sync_erase()
376 static int torture_peb(struct ubi_device *ubi, int pnum)  in torture_peb()  argument
380 	ubi_msg(ubi, "run torture test for PEB %d", pnum);  in torture_peb()
386 		err = do_sync_erase(ubi, pnum);  in torture_peb()
391 		err = ubi_io_read(ubi, ubi->peb_buf, pnum, 0, ubi->peb_size);  in torture_peb()
398 				pnum);  in torture_peb()
405 		err = ubi_io_write(ubi, ubi->peb_buf, pnum, 0, ubi->peb_size);  in torture_peb()
410 		err = ubi_io_read(ubi, ubi->peb_buf, pnum, 0, ubi->peb_size);  in torture_peb()
418 				patterns[i], pnum);  in torture_peb()
425 	ubi_msg(ubi, "PEB %d passed torture test, do not mark it as bad", pnum);  in torture_peb()
436 			pnum);  in torture_peb()
462 static int nor_erase_prepare(struct ubi_device *ubi, int pnum)  in nor_erase_prepare()  argument
487 	addr = (loff_t)pnum * ubi->peb_size;  in nor_erase_prepare()
488 	err = ubi_io_read_ec_hdr(ubi, pnum, &ec_hdr, 0);  in nor_erase_prepare()
499 	err = ubi_io_read_vid_hdr(ubi, pnum, &vidb, 0);  in nor_erase_prepare()
515 	ubi_err(ubi, "cannot invalidate PEB %d, write returned %d", pnum, err);  in nor_erase_prepare()
516 	ubi_dump_flash(ubi, pnum, 0, ubi->peb_size);  in nor_erase_prepare()
536 int ubi_io_sync_erase(struct ubi_device *ubi, int pnum, int torture)  in ubi_io_sync_erase()  argument
540 	ubi_assert(pnum >= 0 && pnum < ubi->peb_count);  in ubi_io_sync_erase()
542 	err = self_check_not_bad(ubi, pnum);  in ubi_io_sync_erase()
552 		err = nor_erase_prepare(ubi, pnum);  in ubi_io_sync_erase()
558 		ret = torture_peb(ubi, pnum);  in ubi_io_sync_erase()
563 	err = do_sync_erase(ubi, pnum);  in ubi_io_sync_erase()
578 int ubi_io_is_bad(const struct ubi_device *ubi, int pnum)  in ubi_io_is_bad()  argument
582 	ubi_assert(pnum >= 0 && pnum < ubi->peb_count);  in ubi_io_is_bad()
587 		ret = mtd_block_isbad(mtd, (loff_t)pnum * ubi->peb_size);  in ubi_io_is_bad()
590 				ret, pnum);  in ubi_io_is_bad()
592 			dbg_io("PEB %d is bad", pnum);  in ubi_io_is_bad()
607 int ubi_io_mark_bad(const struct ubi_device *ubi, int pnum)  in ubi_io_mark_bad()  argument
612 	ubi_assert(pnum >= 0 && pnum < ubi->peb_count);  in ubi_io_mark_bad()
622 	err = mtd_block_markbad(mtd, (loff_t)pnum * ubi->peb_size);  in ubi_io_mark_bad()
624 		ubi_err(ubi, "cannot mark PEB %d bad, error %d", pnum, err);  in ubi_io_mark_bad()
700 int ubi_io_read_ec_hdr(struct ubi_device *ubi, int pnum,  in ubi_io_read_ec_hdr()  argument
706 	dbg_io("read EC header from PEB %d", pnum);  in ubi_io_read_ec_hdr()
707 	ubi_assert(pnum >= 0 && pnum < ubi->peb_count);  in ubi_io_read_ec_hdr()
709 	read_err = ubi_io_read(ubi, ec_hdr, pnum, 0, UBI_EC_HDR_SIZE);  in ubi_io_read_ec_hdr()
739 					 pnum);  in ubi_io_read_ec_hdr()
741 				pnum);  in ubi_io_read_ec_hdr()
754 				 pnum, magic, UBI_EC_HDR_MAGIC);  in ubi_io_read_ec_hdr()
758 			pnum, magic, UBI_EC_HDR_MAGIC);  in ubi_io_read_ec_hdr()
768 				 pnum, crc, hdr_crc);  in ubi_io_read_ec_hdr()
772 			pnum, crc, hdr_crc);  in ubi_io_read_ec_hdr()
783 		ubi_err(ubi, "validation failed for PEB %d", pnum);  in ubi_io_read_ec_hdr()
809 int ubi_io_write_ec_hdr(struct ubi_device *ubi, int pnum,  in ubi_io_write_ec_hdr()  argument
815 	dbg_io("write EC header to PEB %d", pnum);  in ubi_io_write_ec_hdr()
816 	ubi_assert(pnum >= 0 &&  pnum < ubi->peb_count);  in ubi_io_write_ec_hdr()
826 	err = self_check_ec_hdr(ubi, pnum, ec_hdr);  in ubi_io_write_ec_hdr()
833 	err = ubi_io_write(ubi, ec_hdr, pnum, 0, ubi->ec_hdr_alsize);  in ubi_io_write_ec_hdr()
977 int ubi_io_read_vid_hdr(struct ubi_device *ubi, int pnum,  in ubi_io_read_vid_hdr()  argument
985 	dbg_io("read VID header from PEB %d", pnum);  in ubi_io_read_vid_hdr()
986 	ubi_assert(pnum >= 0 &&  pnum < ubi->peb_count);  in ubi_io_read_vid_hdr()
988 	read_err = ubi_io_read(ubi, p, pnum, ubi->vid_hdr_aloffset,  in ubi_io_read_vid_hdr()
1001 					 pnum);  in ubi_io_read_vid_hdr()
1003 				pnum);  in ubi_io_read_vid_hdr()
1012 				 pnum, magic, UBI_VID_HDR_MAGIC);  in ubi_io_read_vid_hdr()
1016 			pnum, magic, UBI_VID_HDR_MAGIC);  in ubi_io_read_vid_hdr()
1026 				 pnum, crc, hdr_crc);  in ubi_io_read_vid_hdr()
1030 			pnum, crc, hdr_crc);  in ubi_io_read_vid_hdr()
1039 		ubi_err(ubi, "validation failed for PEB %d", pnum);  in ubi_io_read_vid_hdr()
1061 int ubi_io_write_vid_hdr(struct ubi_device *ubi, int pnum,  in ubi_io_write_vid_hdr()  argument
1069 	dbg_io("write VID header to PEB %d", pnum);  in ubi_io_write_vid_hdr()
1070 	ubi_assert(pnum >= 0 &&  pnum < ubi->peb_count);  in ubi_io_write_vid_hdr()
1072 	err = self_check_peb_ec_hdr(ubi, pnum);  in ubi_io_write_vid_hdr()
1081 	err = self_check_vid_hdr(ubi, pnum, vid_hdr);  in ubi_io_write_vid_hdr()
1088 	err = ubi_io_write(ubi, p, pnum, ubi->vid_hdr_aloffset,  in ubi_io_write_vid_hdr()
1101 static int self_check_not_bad(const struct ubi_device *ubi, int pnum)  in self_check_not_bad()  argument
1108 	err = ubi_io_is_bad(ubi, pnum);  in self_check_not_bad()
1112 	ubi_err(ubi, "self-check failed for PEB %d", pnum);  in self_check_not_bad()
1126 static int self_check_ec_hdr(const struct ubi_device *ubi, int pnum,  in self_check_ec_hdr()  argument
1144 		ubi_err(ubi, "self-check failed for PEB %d", pnum);  in self_check_ec_hdr()
1164 static int self_check_peb_ec_hdr(const struct ubi_device *ubi, int pnum)  in self_check_peb_ec_hdr()  argument
1177 	err = ubi_io_read(ubi, ec_hdr, pnum, 0, UBI_EC_HDR_SIZE);  in self_check_peb_ec_hdr()
1186 		ubi_err(ubi, "self-check failed for PEB %d", pnum);  in self_check_peb_ec_hdr()
1193 	err = self_check_ec_hdr(ubi, pnum, ec_hdr);  in self_check_peb_ec_hdr()
1209 static int self_check_vid_hdr(const struct ubi_device *ubi, int pnum,  in self_check_vid_hdr()  argument
1221 			magic, pnum, UBI_VID_HDR_MAGIC);  in self_check_vid_hdr()
1227 		ubi_err(ubi, "self-check failed for PEB %d", pnum);  in self_check_vid_hdr()
1234 	ubi_err(ubi, "self-check failed for PEB %d", pnum);  in self_check_vid_hdr()
1249 static int self_check_peb_vid_hdr(const struct ubi_device *ubi, int pnum)  in self_check_peb_vid_hdr()  argument
1266 	err = ubi_io_read(ubi, p, pnum, ubi->vid_hdr_aloffset,  in self_check_peb_vid_hdr()
1275 			pnum, crc, hdr_crc);  in self_check_peb_vid_hdr()
1276 		ubi_err(ubi, "self-check failed for PEB %d", pnum);  in self_check_peb_vid_hdr()
1283 	err = self_check_vid_hdr(ubi, pnum, vid_hdr);  in self_check_peb_vid_hdr()
1302 static int self_check_write(struct ubi_device *ubi, const void *buf, int pnum,  in self_check_write()  argument
1308 	loff_t addr = (loff_t)pnum * ubi->peb_size + offset;  in self_check_write()
1332 			pnum, offset, len);  in self_check_write()
1367 int ubi_self_check_all_ff(struct ubi_device *ubi, int pnum, int offset, int len)  in ubi_self_check_all_ff()  argument
1372 	loff_t addr = (loff_t)pnum * ubi->peb_size + offset;  in ubi_self_check_all_ff()
1386 			err, len, pnum, offset, read);  in ubi_self_check_all_ff()
1393 			pnum, offset, len);  in ubi_self_check_all_ff()
1401 	ubi_err(ubi, "self-check failed for PEB %d", pnum);  in ubi_self_check_all_ff()