Lines Matching refs:part
157 static int scan_header(partition_t *part) in scan_header() argument
163 part->header.FormattedSize = 0; in scan_header()
164 max_offset = (0x100000<part->mbd.mtd->size)?0x100000:part->mbd.mtd->size; in scan_header()
168 offset += part->mbd.mtd->erasesize ? : 0x2000) { in scan_header()
170 err = mtd_read(part->mbd.mtd, offset, sizeof(header), &ret, in scan_header()
189 if ((1 << header.EraseUnitSize) != part->mbd.mtd->erasesize) { in scan_header()
191 1 << header.EraseUnitSize,part->mbd.mtd->erasesize); in scan_header()
194 part->header = header; in scan_header()
198 static int build_maps(partition_t *part) in build_maps() argument
208 part->DataUnits = le16_to_cpu(part->header.NumEraseUnits) - in build_maps()
209 part->header.NumTransferUnits; in build_maps()
210 part->EUNInfo = kmalloc(part->DataUnits * sizeof(struct eun_info_t), in build_maps()
212 if (!part->EUNInfo) in build_maps()
214 for (i = 0; i < part->DataUnits; i++) in build_maps()
215 part->EUNInfo[i].Offset = 0xffffffff; in build_maps()
216 part->XferInfo = in build_maps()
217 kmalloc(part->header.NumTransferUnits * sizeof(struct xfer_info_t), in build_maps()
219 if (!part->XferInfo) in build_maps()
223 for (i = 0; i < le16_to_cpu(part->header.NumEraseUnits); i++) { in build_maps()
224 offset = ((i + le16_to_cpu(part->header.FirstPhysicalEUN)) in build_maps()
225 << part->header.EraseUnitSize); in build_maps()
226 ret = mtd_read(part->mbd.mtd, offset, sizeof(header), &retval, in build_maps()
235 if (hdr_ok && (le16_to_cpu(header.LogicalEUN) < part->DataUnits) && in build_maps()
236 (part->EUNInfo[le16_to_cpu(header.LogicalEUN)].Offset == 0xffffffff)) { in build_maps()
237 part->EUNInfo[le16_to_cpu(header.LogicalEUN)].Offset = offset; in build_maps()
238 part->EUNInfo[le16_to_cpu(header.LogicalEUN)].EraseCount = in build_maps()
242 if (xtrans == part->header.NumTransferUnits) { in build_maps()
248 part->XferInfo[xtrans].state = XFER_PREPARED; in build_maps()
249 part->XferInfo[xtrans].EraseCount = le32_to_cpu(header.EraseCount); in build_maps()
251 part->XferInfo[xtrans].state = XFER_UNKNOWN; in build_maps()
253 part->XferInfo[xtrans].EraseCount = in build_maps()
254 le32_to_cpu(part->header.EraseCount); in build_maps()
256 part->XferInfo[xtrans].Offset = offset; in build_maps()
261 header = part->header; in build_maps()
271 part->VirtualBlockMap = vmalloc(blocks * sizeof(uint32_t)); in build_maps()
272 if (!part->VirtualBlockMap) in build_maps()
275 memset(part->VirtualBlockMap, 0xff, blocks * sizeof(uint32_t)); in build_maps()
276 part->BlocksPerUnit = (1 << header.EraseUnitSize) >> header.BlockSize; in build_maps()
278 part->bam_cache = kmalloc(part->BlocksPerUnit * sizeof(uint32_t), in build_maps()
280 if (!part->bam_cache) in build_maps()
283 part->bam_index = 0xffff; in build_maps()
284 part->FreeTotal = 0; in build_maps()
286 for (i = 0; i < part->DataUnits; i++) { in build_maps()
287 part->EUNInfo[i].Free = 0; in build_maps()
288 part->EUNInfo[i].Deleted = 0; in build_maps()
289 offset = part->EUNInfo[i].Offset + le32_to_cpu(header.BAMOffset); in build_maps()
291 ret = mtd_read(part->mbd.mtd, offset, in build_maps()
292 part->BlocksPerUnit * sizeof(uint32_t), &retval, in build_maps()
293 (unsigned char *)part->bam_cache); in build_maps()
298 for (j = 0; j < part->BlocksPerUnit; j++) { in build_maps()
299 if (BLOCK_FREE(le32_to_cpu(part->bam_cache[j]))) { in build_maps()
300 part->EUNInfo[i].Free++; in build_maps()
301 part->FreeTotal++; in build_maps()
302 } else if ((BLOCK_TYPE(le32_to_cpu(part->bam_cache[j])) == BLOCK_DATA) && in build_maps()
303 (BLOCK_NUMBER(le32_to_cpu(part->bam_cache[j])) < blocks)) in build_maps()
304 part->VirtualBlockMap[BLOCK_NUMBER(le32_to_cpu(part->bam_cache[j]))] = in build_maps()
306 else if (BLOCK_DELETED(le32_to_cpu(part->bam_cache[j]))) in build_maps()
307 part->EUNInfo[i].Deleted++; in build_maps()
315 kfree(part->bam_cache); in build_maps()
317 vfree(part->VirtualBlockMap); in build_maps()
319 kfree(part->XferInfo); in build_maps()
321 kfree(part->EUNInfo); in build_maps()
333 static int erase_xfer(partition_t *part, in erase_xfer() argument
340 xfer = &part->XferInfo[xfernum]; in erase_xfer()
351 erase->mtd = part->mbd.mtd; in erase_xfer()
354 erase->len = 1 << part->header.EraseUnitSize; in erase_xfer()
355 erase->priv = (u_long)part; in erase_xfer()
357 ret = mtd_erase(part->mbd.mtd, erase); in erase_xfer()
376 partition_t *part; in ftl_erase_callback() local
381 part = (partition_t *)(erase->priv); in ftl_erase_callback()
383 for (i = 0; i < part->header.NumTransferUnits; i++) in ftl_erase_callback()
384 if (part->XferInfo[i].Offset == erase->addr) break; in ftl_erase_callback()
386 if (i == part->header.NumTransferUnits) { in ftl_erase_callback()
392 xfer = &part->XferInfo[i]; in ftl_erase_callback()
405 static int prepare_xfer(partition_t *part, int i) in prepare_xfer() argument
414 xfer = &part->XferInfo[i]; in prepare_xfer()
420 header = part->header; in prepare_xfer()
424 ret = mtd_write(part->mbd.mtd, xfer->Offset, sizeof(header), &retlen, in prepare_xfer()
432 nbam = (part->BlocksPerUnit * sizeof(uint32_t) + in prepare_xfer()
433 le32_to_cpu(part->header.BAMOffset) + SECTOR_SIZE - 1) / SECTOR_SIZE; in prepare_xfer()
435 offset = xfer->Offset + le32_to_cpu(part->header.BAMOffset); in prepare_xfer()
440 ret = mtd_write(part->mbd.mtd, offset, sizeof(uint32_t), &retlen, in prepare_xfer()
463 static int copy_erase_unit(partition_t *part, uint16_t srcunit, in copy_erase_unit() argument
476 eun = &part->EUNInfo[srcunit]; in copy_erase_unit()
477 xfer = &part->XferInfo[xferunit]; in copy_erase_unit()
483 if (part->bam_index != srcunit) { in copy_erase_unit()
485 offset = eun->Offset + le32_to_cpu(part->header.BAMOffset); in copy_erase_unit()
487 ret = mtd_read(part->mbd.mtd, offset, in copy_erase_unit()
488 part->BlocksPerUnit * sizeof(uint32_t), &retlen, in copy_erase_unit()
489 (u_char *)(part->bam_cache)); in copy_erase_unit()
492 part->bam_index = 0xffff; in copy_erase_unit()
505 ret = mtd_write(part->mbd.mtd, offset, sizeof(uint16_t), &retlen, in copy_erase_unit()
518 for (i = 0; i < part->BlocksPerUnit; i++) { in copy_erase_unit()
519 switch (BLOCK_TYPE(le32_to_cpu(part->bam_cache[i]))) { in copy_erase_unit()
525 ret = mtd_read(part->mbd.mtd, src, SECTOR_SIZE, &retlen, in copy_erase_unit()
533 ret = mtd_write(part->mbd.mtd, dest, SECTOR_SIZE, &retlen, in copy_erase_unit()
543 part->bam_cache[i] = cpu_to_le32(0xffffffff); in copy_erase_unit()
552 ret = mtd_write(part->mbd.mtd, in copy_erase_unit()
553 xfer->Offset + le32_to_cpu(part->header.BAMOffset), in copy_erase_unit()
554 part->BlocksPerUnit * sizeof(int32_t), in copy_erase_unit()
556 (u_char *)part->bam_cache); in copy_erase_unit()
564 ret = mtd_write(part->mbd.mtd, xfer->Offset + 20, sizeof(uint16_t), in copy_erase_unit()
580 part->FreeTotal -= eun->Free; in copy_erase_unit()
581 part->FreeTotal += free; in copy_erase_unit()
586 part->bam_index = srcunit; in copy_erase_unit()
607 static int reclaim_block(partition_t *part) in reclaim_block() argument
614 pr_debug("NumTransferUnits == %x\n", part->header.NumTransferUnits); in reclaim_block()
619 for (i = 0; i < part->header.NumTransferUnits; i++) { in reclaim_block()
621 if (part->XferInfo[i].state == XFER_UNKNOWN) { in reclaim_block()
624 erase_xfer(part, i); in reclaim_block()
626 if (part->XferInfo[i].state == XFER_ERASING) { in reclaim_block()
631 else if (part->XferInfo[i].state == XFER_ERASED) { in reclaim_block()
634 prepare_xfer(part, i); in reclaim_block()
636 if (part->XferInfo[i].state == XFER_PREPARED) { in reclaim_block()
639 if (part->XferInfo[i].EraseCount <= best) { in reclaim_block()
640 best = part->XferInfo[i].EraseCount; in reclaim_block()
645 pr_debug("XferInfo[%d].state == %x\n",i, part->XferInfo[i].state); in reclaim_block()
652 mtd_sync(part->mbd.mtd); in reclaim_block()
671 for (i = 0; i < part->DataUnits; i++) in reclaim_block()
672 if (part->EUNInfo[i].EraseCount <= best) { in reclaim_block()
673 best = part->EUNInfo[i].EraseCount; in reclaim_block()
678 for (i = 0; i < part->DataUnits; i++) in reclaim_block()
679 if (part->EUNInfo[i].Deleted >= best) { in reclaim_block()
680 best = part->EUNInfo[i].Deleted; in reclaim_block()
695 ret = copy_erase_unit(part, eun, xfer); in reclaim_block()
697 erase_xfer(part, xfer); in reclaim_block()
714 static void dump_lists(partition_t *part) in dump_lists() argument
717 printk(KERN_DEBUG "ftl_cs: Free total = %d\n", part->FreeTotal); in dump_lists()
718 for (i = 0; i < part->DataUnits; i++) in dump_lists()
721 part->EUNInfo[i].Offset >> part->header.EraseUnitSize, in dump_lists()
722 part->EUNInfo[i].Free, part->EUNInfo[i].Deleted); in dump_lists()
726 static uint32_t find_free(partition_t *part) in find_free() argument
734 stop = (part->bam_index == 0xffff) ? 0 : part->bam_index; in find_free()
737 if (part->EUNInfo[eun].Free != 0) break; in find_free()
739 if (++eun == part->DataUnits) eun = 0; in find_free()
742 if (part->EUNInfo[eun].Free == 0) in find_free()
746 if (eun != part->bam_index) { in find_free()
748 part->bam_index = 0xffff; in find_free()
750 ret = mtd_read(part->mbd.mtd, in find_free()
751 part->EUNInfo[eun].Offset + le32_to_cpu(part->header.BAMOffset), in find_free()
752 part->BlocksPerUnit * sizeof(uint32_t), in find_free()
754 (u_char *)(part->bam_cache)); in find_free()
760 part->bam_index = eun; in find_free()
764 for (blk = 0; blk < part->BlocksPerUnit; blk++) in find_free()
765 if (BLOCK_FREE(le32_to_cpu(part->bam_cache[blk]))) break; in find_free()
766 if (blk == part->BlocksPerUnit) { in find_free()
770 dump_lists(part); in find_free()
787 static int ftl_read(partition_t *part, caddr_t buffer, in ftl_read() argument
796 part, sector, nblocks); in ftl_read()
797 if (!(part->state & FTL_FORMATTED)) { in ftl_read()
801 bsize = 1 << part->header.EraseUnitSize; in ftl_read()
804 if (((sector+i) * SECTOR_SIZE) >= le32_to_cpu(part->header.FormattedSize)) { in ftl_read()
808 log_addr = part->VirtualBlockMap[sector+i]; in ftl_read()
812 offset = (part->EUNInfo[log_addr / bsize].Offset in ftl_read()
814 ret = mtd_read(part->mbd.mtd, offset, SECTOR_SIZE, &retlen, in ftl_read()
833 static int set_bam_entry(partition_t *part, uint32_t log_addr, in set_bam_entry() argument
845 part, log_addr, virt_addr); in set_bam_entry()
846 bsize = 1 << part->header.EraseUnitSize; in set_bam_entry()
849 offset = (part->EUNInfo[eun].Offset + blk * sizeof(uint32_t) + in set_bam_entry()
850 le32_to_cpu(part->header.BAMOffset)); in set_bam_entry()
853 ret = mtd_read(part->mbd.mtd, offset, sizeof(uint32_t), &retlen, in set_bam_entry()
874 if (part->bam_index == eun) { in set_bam_entry()
876 if (le32_to_cpu(part->bam_cache[blk]) != old_addr) { in set_bam_entry()
883 le32_to_cpu(part->bam_cache[blk]), old_addr); in set_bam_entry()
888 part->bam_cache[blk] = le_virt_addr; in set_bam_entry()
890 ret = mtd_write(part->mbd.mtd, offset, sizeof(uint32_t), &retlen, in set_bam_entry()
901 static int ftl_write(partition_t *part, caddr_t buffer, in ftl_write() argument
910 part, sector, nblocks); in ftl_write()
911 if (!(part->state & FTL_FORMATTED)) { in ftl_write()
916 while (part->FreeTotal < nblocks) { in ftl_write()
917 ret = reclaim_block(part); in ftl_write()
922 bsize = 1 << part->header.EraseUnitSize; in ftl_write()
926 if (virt_addr >= le32_to_cpu(part->header.FormattedSize)) { in ftl_write()
932 blk = find_free(part); in ftl_write()
942 log_addr = part->bam_index * bsize + blk * SECTOR_SIZE; in ftl_write()
943 part->EUNInfo[part->bam_index].Free--; in ftl_write()
944 part->FreeTotal--; in ftl_write()
945 if (set_bam_entry(part, log_addr, 0xfffffffe)) in ftl_write()
947 part->EUNInfo[part->bam_index].Deleted++; in ftl_write()
948 offset = (part->EUNInfo[part->bam_index].Offset + in ftl_write()
950 ret = mtd_write(part->mbd.mtd, offset, SECTOR_SIZE, &retlen, buffer); in ftl_write()
961 old_addr = part->VirtualBlockMap[sector+i]; in ftl_write()
963 part->VirtualBlockMap[sector+i] = 0xffffffff; in ftl_write()
964 part->EUNInfo[old_addr/bsize].Deleted++; in ftl_write()
965 if (set_bam_entry(part, old_addr, 0)) in ftl_write()
970 if (set_bam_entry(part, log_addr, virt_addr)) in ftl_write()
972 part->VirtualBlockMap[sector+i] = log_addr; in ftl_write()
973 part->EUNInfo[part->bam_index].Deleted--; in ftl_write()
983 partition_t *part = (void *)dev; in ftl_getgeo() local
987 sect = le32_to_cpu(part->header.FormattedSize)/SECTOR_SIZE; in ftl_getgeo()
1011 partition_t *part = (void *)dev; in ftl_discardsect() local
1012 uint32_t bsize = 1 << part->header.EraseUnitSize; in ftl_discardsect()
1018 uint32_t old_addr = part->VirtualBlockMap[sector]; in ftl_discardsect()
1020 part->VirtualBlockMap[sector] = 0xffffffff; in ftl_discardsect()
1021 part->EUNInfo[old_addr/bsize].Deleted++; in ftl_discardsect()
1022 if (set_bam_entry(part, old_addr, 0)) in ftl_discardsect()
1033 static void ftl_freepart(partition_t *part) in ftl_freepart() argument
1035 vfree(part->VirtualBlockMap); in ftl_freepart()
1036 part->VirtualBlockMap = NULL; in ftl_freepart()
1037 kfree(part->EUNInfo); in ftl_freepart()
1038 part->EUNInfo = NULL; in ftl_freepart()
1039 kfree(part->XferInfo); in ftl_freepart()
1040 part->XferInfo = NULL; in ftl_freepart()
1041 kfree(part->bam_cache); in ftl_freepart()
1042 part->bam_cache = NULL; in ftl_freepart()