From 8e4bff4cab0ddac6060645b0715210484d02ff40 Mon Sep 17 00:00:00 2001 From: Yuval Adam <_@yuv.al> Date: Wed, 30 Aug 2017 08:25:59 +0000 Subject: Initial file dump from open source release --- drivers/mtd/tests/sprd_mtdtest/Makefile | 1 + .../tests/sprd_mtdtest/nandflash_agetest/Makefile | 1 + .../nandflash_agetest/nandflash_agetest.c | 250 +++ .../sprd_mtdtest/nandflash_agetest/readme.txt | 15 + .../sprd_mtdtest/nandflash_bitfliptest/Makefile | 1 + .../nandflash_bitfliptest/nandflash_bitfliptest.c | 364 ++++ .../sprd_mtdtest/nandflash_bitfliptest/readme.txt | 9 + .../tests/sprd_mtdtest/nandflash_ecctest/Makefile | 1 + .../nandflash_ecctest/nandflash_ecctest.c | 273 +++ .../sprd_mtdtest/nandflash_ecctest/readme.txt | 8 + .../tests/sprd_mtdtest/nandflash_postest/Makefile | 1 + .../nandflash_postest/nandflash_postest.c | 321 +++ .../sprd_mtdtest/nandflash_postest/readme.txt | 15 + .../tests/sprd_mtdtest/nandflash_stdtest/Makefile | 1 + .../nandflash_stdtest/nandflash_stdtest.c | 2110 ++++++++++++++++++++ .../sprd_mtdtest/nandflash_stdtest/readme.txt | 9 + 16 files changed, 3380 insertions(+) create mode 100755 drivers/mtd/tests/sprd_mtdtest/Makefile create mode 100755 drivers/mtd/tests/sprd_mtdtest/nandflash_agetest/Makefile create mode 100755 drivers/mtd/tests/sprd_mtdtest/nandflash_agetest/nandflash_agetest.c create mode 100755 drivers/mtd/tests/sprd_mtdtest/nandflash_agetest/readme.txt create mode 100755 drivers/mtd/tests/sprd_mtdtest/nandflash_bitfliptest/Makefile create mode 100755 drivers/mtd/tests/sprd_mtdtest/nandflash_bitfliptest/nandflash_bitfliptest.c create mode 100755 drivers/mtd/tests/sprd_mtdtest/nandflash_bitfliptest/readme.txt create mode 100755 drivers/mtd/tests/sprd_mtdtest/nandflash_ecctest/Makefile create mode 100755 drivers/mtd/tests/sprd_mtdtest/nandflash_ecctest/nandflash_ecctest.c create mode 100755 drivers/mtd/tests/sprd_mtdtest/nandflash_ecctest/readme.txt create mode 100755 drivers/mtd/tests/sprd_mtdtest/nandflash_postest/Makefile create mode 100755 drivers/mtd/tests/sprd_mtdtest/nandflash_postest/nandflash_postest.c create mode 100755 drivers/mtd/tests/sprd_mtdtest/nandflash_postest/readme.txt create mode 100755 drivers/mtd/tests/sprd_mtdtest/nandflash_stdtest/Makefile create mode 100755 drivers/mtd/tests/sprd_mtdtest/nandflash_stdtest/nandflash_stdtest.c create mode 100755 drivers/mtd/tests/sprd_mtdtest/nandflash_stdtest/readme.txt (limited to 'drivers/mtd/tests/sprd_mtdtest') diff --git a/drivers/mtd/tests/sprd_mtdtest/Makefile b/drivers/mtd/tests/sprd_mtdtest/Makefile new file mode 100755 index 00000000..59736b2b --- /dev/null +++ b/drivers/mtd/tests/sprd_mtdtest/Makefile @@ -0,0 +1 @@ +obj-y += nandflash_agetest/ nandflash_bitfliptest/ nandflash_ecctest/ nandflash_postest/ nandflash_stdtest/ \ No newline at end of file diff --git a/drivers/mtd/tests/sprd_mtdtest/nandflash_agetest/Makefile b/drivers/mtd/tests/sprd_mtdtest/nandflash_agetest/Makefile new file mode 100755 index 00000000..f18a8597 --- /dev/null +++ b/drivers/mtd/tests/sprd_mtdtest/nandflash_agetest/Makefile @@ -0,0 +1 @@ +obj-m += nandflash_agetest.o diff --git a/drivers/mtd/tests/sprd_mtdtest/nandflash_agetest/nandflash_agetest.c b/drivers/mtd/tests/sprd_mtdtest/nandflash_agetest/nandflash_agetest.c new file mode 100755 index 00000000..5963a6ba --- /dev/null +++ b/drivers/mtd/tests/sprd_mtdtest/nandflash_agetest/nandflash_agetest.c @@ -0,0 +1,250 @@ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#undef pr_fmt +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +static int dev = 4; +module_param(dev, int, S_IRUGO); +MODULE_PARM_DESC(dev, "MTD device number to use"); + +static int ebcnt = 0; +static int pgcnt = 0; +static unsigned char *bbt = NULL; +static struct mtd_info *mtd = NULL; +static struct rnd_state rnd_state = {0}; + +static int agetest_erase_eraseblock(unsigned int ebnum) +{ + int err = 0; + struct erase_info ei = {0}; + + ei.mtd = mtd; + ei.addr = ebnum * mtd->erasesize; + ei.len = mtd->erasesize; + + err = mtd_erase(mtd, &ei); + if (err) { + pr_err("err %d while erasing EB %d\n", err, ebnum); + return err; + } + + if (ei.state == MTD_ERASE_FAILED) { + pr_err("some erase error occurred at EB %d\n", ebnum); + return -EIO; + } + + return 0; +} + +static int agetest_scan_bad_block(void) +{ + unsigned int i = 0, bad = 0; + + bbt = (unsigned char *)vmalloc(ebcnt); + if (!bbt) { + pr_info("error: cannot allocate memory\n"); + return -ENOMEM; + } + + pr_info("scanning for bad eraseblocks first\n"); + for (i = 0; i < ebcnt; ++i) { + bbt[i] = mtd_block_isbad(mtd, i * mtd->erasesize) ? 1 : 0; + if (bbt[i]) + bad += 1; + cond_resched(); + } + pr_info("scanned %d eraseblocks, %d are bad\n", ebcnt, bad); + return 0; +} + +static int nandflash_agetest(void) +{ + int err = 0; + loff_t addr = 0; + unsigned int test_blk = 10; + unsigned int op = 0; + unsigned char *readbuf = NULL; + unsigned char *writebuf = NULL; + unsigned int written = 0, read = 0; + unsigned int continue_err = 0; + unsigned int erase_time = 0; + + readbuf = vmalloc(mtd->writesize); + if(!readbuf) { + pr_err("%s, alloc readbuf failed!\n", __func__); + err = -ENOMEM; + goto out; + } + + writebuf = vmalloc(mtd->writesize); + if(!writebuf) { + pr_err("%s, alloc writebuf failed!\n", __func__); + err = -ENOMEM; + goto out; + } + + while((test_blk < ebcnt) && bbt[test_blk]) { + test_blk ++; + } + + if(test_blk >= ebcnt) { + pr_err("The whole mtd_partion are bad!\n"); + err = -EINVAL; + goto out; + } + + pr_info("Begin to make block %d as bad!\n", test_blk); + addr = test_blk * mtd->erasesize; + prandom_seed_state(&rnd_state, 1); + prandom_bytes_state(&rnd_state, writebuf, mtd->writesize); + err = agetest_erase_eraseblock(test_blk); + if(err) { + pr_err("the first erase failed at addr: 0x%.8x, err: %d\n", (unsigned int)addr, err); + goto out; + } + + while(1) { + if(signal_pending(current)) + goto out; + err = mtd_write(mtd, addr, mtd->writesize, &written, writebuf); + if(err || written != mtd->writesize) { + pr_err("write failed at addr: 0x%.8x, err: %d, written: %d, time: %d\n", (unsigned int)addr, err, written, op); + goto erase; + } + + err = mtd_read(mtd, addr, mtd->writesize, &read, readbuf); + if(err || read != mtd->writesize) { + pr_err("read failed at addr: 0x%.8x, err: %d, read: %d, time: %d\n", (unsigned int)addr, err, read, op); + goto erase; + } + + if(memcmp(readbuf, writebuf, mtd->writesize) != 0) { + pr_err("verify failed at addr: 0x%.8x!", (unsigned int)addr); + goto erase; + } + +erase: + err = agetest_erase_eraseblock(test_blk); + if(err) { + pr_err("erase failed at addr: 0x%.8x, err: %d, time: %d\n", (unsigned int)addr, err, op); + break; + } + op += 1; + if(op % 1024 == 0) + pr_info("we have erased %d times!\n", op); + } + +/*make sure the block has been erased as bad block*/ + while(1) { + if(signal_pending(current)) + break; + err = mtd_write(mtd, addr, mtd->writesize, &written, writebuf); + err = agetest_erase_eraseblock(test_blk); + if(err) { + continue_err ++; + if(continue_err >= 0x1000) { + pr_info("after %d times continue erase, the block has been erased as bad block!", erase_time); + break; + } + if( continue_err % 100 == 0) + pr_info("the continue_err is %d!", continue_err); + } else { + if(continue_err) + pr_info("the continue_err may be clean, old value is %d\n", continue_err); + continue_err = 0; + } + erase_time ++; + if( erase_time % 1024 == 0) + pr_info("the erase_time is %d!", erase_time); + } + pr_info("mark block %d as bad!\n", test_blk); + mtd->_block_markbad(mtd, addr); + err = 0; + +out: + vfree(readbuf); + vfree(writebuf); + pr_info("agetest finished, %d(%d) operations done!\n", op, erase_time); + return err; +} + +static int __init nandflash_agetest_init(void) +{ + int err = 0; + uint64_t tmp = 0; + + pr_info(KERN_INFO "\n"); + pr_info(KERN_INFO "=================================================\n"); + + if (dev < 0) { + pr_info("Please specify a valid mtd-device via module parameter\n"); + return -EINVAL; + } + + pr_info("MTD device: %d\n", dev); + + mtd = get_mtd_device(NULL, dev); + if (IS_ERR(mtd)) { + err = PTR_ERR(mtd); + pr_info("error: cannot get MTD device\n"); + return err; + } + if (mtd->type != MTD_NANDFLASH) { + pr_info("this test requires NAND flash\n"); + goto out; + } + + tmp = mtd->size; + do_div(tmp, mtd->erasesize); + ebcnt = tmp; + pgcnt = mtd->erasesize / mtd->writesize; + + pr_info("MTD device size %llu, eraseblock size %u, " + "page size %u, count of eraseblocks %u, pages per " + "eraseblock %u, OOB size %u\n", + (unsigned long long)mtd->size, mtd->erasesize, + mtd->writesize, ebcnt, pgcnt, mtd->oobsize); + + err = agetest_scan_bad_block(); + if (err) + goto out; + + err = nandflash_agetest(); + if(err) { + pr_err("stresstest failed!\n"); + goto out; + } + +out: + pr_info(KERN_INFO "=================================================\n"); + if(bbt != NULL) + vfree(bbt); + put_mtd_device(mtd); + + return -1; +} + +static void __exit nandflash_agetest_exit(void) +{ + return; +} + +module_init(nandflash_agetest_init); + +module_exit(nandflash_agetest_exit); + +MODULE_DESCRIPTION("mtd_age_test"); +MODULE_AUTHOR("ming.tang@spreadtrum.com"); +MODULE_LICENSE("GPL"); diff --git a/drivers/mtd/tests/sprd_mtdtest/nandflash_agetest/readme.txt b/drivers/mtd/tests/sprd_mtdtest/nandflash_agetest/readme.txt new file mode 100755 index 00000000..91a5977f --- /dev/null +++ b/drivers/mtd/tests/sprd_mtdtest/nandflash_agetest/readme.txt @@ -0,0 +1,15 @@ +agetest， 即老化测试，用于获取单个nandflash 擦除块的寿命。该测试需要的时间较长，一般需要5小时以上，由nandflash的特性决定。为了确保被测试擦除块彻底被擦坏，需要使用强制擦除接口（将/sys/kernel/debug/nfc_base/allowEraseBadBlock置为1）。 + +参数说明： +dev:用于指定测试使用的mtd分区，默认值为4 + +使用方法： +1 将/sys/kernel/debug/nfc_base/allowEraseBadBlock置为1； +cmd:echo "1" > /sys/kernel/debug/nfc_base/allowEraseBadBlock +2 root后加载测试模块并传入参数，测试结果通过kernel log输出，通过erase_time来衡量某款nandflash的特性; +cmd:insmod nandflash_agetest.ko dev=4 +3 将/sys/kernel/debug/nfc_base/allowEraseBadBlock置为0。 +cmd:echo "0" > /sys/kernel/debug/nfc_base/allowEraseBadBlock + +注意： +每进行一次测试，会增加一个bad block。 \ No newline at end of file diff --git a/drivers/mtd/tests/sprd_mtdtest/nandflash_bitfliptest/Makefile b/drivers/mtd/tests/sprd_mtdtest/nandflash_bitfliptest/Makefile new file mode 100755 index 00000000..ba65c86b --- /dev/null +++ b/drivers/mtd/tests/sprd_mtdtest/nandflash_bitfliptest/Makefile @@ -0,0 +1 @@ +obj-m += nandflash_bitfliptest.o diff --git a/drivers/mtd/tests/sprd_mtdtest/nandflash_bitfliptest/nandflash_bitfliptest.c b/drivers/mtd/tests/sprd_mtdtest/nandflash_bitfliptest/nandflash_bitfliptest.c new file mode 100755 index 00000000..a7c926bb --- /dev/null +++ b/drivers/mtd/tests/sprd_mtdtest/nandflash_bitfliptest/nandflash_bitfliptest.c @@ -0,0 +1,364 @@ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#undef pr_fmt +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +struct mtd_part { + struct mtd_info mtd; + struct mtd_info *master; + loff_t offset; + struct list_head list; +}; +static int dev = 4; +static int threshold = 100; +module_param(dev, int, S_IRUGO); +module_param(threshold, int, S_IRUGO); +MODULE_PARM_DESC(dev, "MTD device number to use"); +MODULE_PARM_DESC(threshold, "the threshold of bit-flip num"); + +static struct mtd_info *mtd = NULL; +static struct mtd_part *mtd_part = NULL; +static unsigned char *bbt = NULL; + +static int ebcnt; +static int pgcnt; +static int errcnt; +static int rdcnt; +static int rdpgcnt; +static int pgsize; +static int bufsize; +static int *offsets; +static unsigned char *readbuf; +static unsigned char * writebuf; + +static int mtd_test_erase_eraseblock(int ebnum, int blocks) +{ + int err = 0; + struct erase_info ei = {0}; + + if(blocks == 0) + blocks = 1; + + ei.mtd = mtd; + ei.addr = ebnum * mtd->erasesize; + ei.len = mtd->erasesize * blocks; + + err = mtd_erase(mtd, &ei); + if (err) { + pr_err("error %d while erasing EB %d\n", err, ebnum); + return err; + } + + if (ei.state == MTD_ERASE_FAILED) { + pr_err("Some erase error occurred at EB %d\n", ebnum); + return -EIO; + } + + return 0; +} + +static int mtd_test_erase_whole_device(void) +{ + int err = 0; + unsigned int i = 0; + + for (i = 0; i < ebcnt; ++i) { + if (bbt[i]) + continue; + err = mtd_test_erase_eraseblock(i, 0); + if (err) + return err; + cond_resched(); + } + return 0; +} + +static int mtd_test_scan_bad_block(void) +{ + unsigned int i = 0, bad = 0; + + bbt = (unsigned char *)vmalloc(ebcnt); + if (!bbt) { + pr_info("error: cannot allocate memory\n"); + return -ENOMEM; + } + + pr_info("scanning for bad eraseblocks first\n"); + for (i = 0; i < ebcnt; ++i) { + bbt[i] = mtd_block_isbad(mtd, i * mtd->erasesize) ? 1 : 0; + if (bbt[i]) + bad += 1; + cond_resched(); + } + pr_info("scanned %d eraseblocks, %d are bad\n", ebcnt, bad); + return 0; +} + +static int bitfliptest_rand_eb(void) +{ + unsigned int eb = 0; + +again: + eb = prandom_u32(); + /* Read or write up 2 eraseblocks at a time - hence 'ebcnt - 1' */ + eb %= (ebcnt - 1); + if (bbt[eb]) + goto again; + return eb; +} + +static int bitfliptest_rand_offs(void) +{ + unsigned int offs = 0; + + offs = prandom_u32(); + offs %= bufsize; + return offs; +} + +static int bitfliptest_rand_len(int offs) +{ + unsigned int len = 0; + + len = prandom_u32(); + len %= (bufsize - offs); + return len; +} + +static int bitfliptest_do_read(void) +{ + int err = 0; + size_t read = 0; + loff_t addr = 0; + unsigned int corrected_num = 0; + unsigned int eb = bitfliptest_rand_eb(); + unsigned int offs = bitfliptest_rand_offs(); + unsigned int len = bitfliptest_rand_len(offs); + struct mtd_ecc_stats stats= {0}; + + if (bbt[eb + 1]) { + if (offs >= mtd->erasesize) + offs -= mtd->erasesize; + if (offs + len > mtd->erasesize) + len = mtd->erasesize - offs; + } + addr = eb * mtd->erasesize + offs; + +// pr_info("read, addr: 0x%.8x len: %d\n", (unsigned int)addr, len); + stats = mtd_part->master->ecc_stats; + err = mtd_read(mtd, addr, len, &read, readbuf); + if (mtd_is_bitflip(err)) + err = 0; + if (unlikely(err || read != len)) { + pr_err("error: read failed at 0x%llx, err:%d len: %dread:%d\n", + (long long)addr, err, len, read); + if (!err) + err = -EINVAL; + return err; + } + corrected_num = mtd_part->master->ecc_stats.corrected - stats.corrected; + if(corrected_num != 0) { + errcnt += corrected_num; + pr_info("When we read addr:0x%.8x:0x%.8x, we found %d(%d) bit-flip!\n", (unsigned int)addr, len, corrected_num, errcnt); + } + rdpgcnt += len/mtd->writesize; + rdcnt ++; + return 0; +} + +static int bitfliptest_do_write(void) +{ + int err = 0; + loff_t addr = 0; + size_t written = 0; + int eb = bitfliptest_rand_eb(); + unsigned int offs = 0, len = 0; + + offs = offsets[eb]; + if (offs >= mtd->erasesize) { + err = mtd_test_erase_eraseblock(eb, 0); + if (err) + return err; + offs = offsets[eb] = 0; + } + len = bitfliptest_rand_len(offs); + len = ((len + pgsize - 1) / pgsize) * pgsize; + if (offs + len > mtd->erasesize) { + if (bbt[eb + 1]) + len = mtd->erasesize - offs; + else { +// pr_info("erase, block: %d\n", eb + 1); + err = mtd_test_erase_eraseblock(eb + 1, 0); + if (err) + return err; + offsets[eb + 1] = 0; + } + } + addr = eb * mtd->erasesize + offs; +// pr_info("write, addr: 0x%.8x len: %d\n", (unsigned int)addr, len); + err = mtd_write(mtd, addr, len, &written, writebuf); + if (unlikely(err || written != len)) { + pr_err("error: write failed at 0x%llx\n", + (long long)addr); + if (!err) + err = -EINVAL; + return err; + } + offs += len; + while (offs > mtd->erasesize) { + offsets[eb++] = mtd->erasesize; + offs -= mtd->erasesize; + } + offsets[eb] = offs; + return 0; +} + +static int bitfliptest_do_operation(void) +{ + if (prandom_u32() & 1) { + return bitfliptest_do_read(); + } else { + return bitfliptest_do_write(); + } +} + +static int mtd_test_bitfliptest(void) +{ + int err = 0; + unsigned int i = 0, op = 0; + + bufsize = mtd->erasesize * 2; + readbuf = vmalloc(bufsize); + if(!readbuf) { + pr_err("%s, alloc readbuf failed!\n", __func__); + return -ENOMEM; + } + writebuf = vmalloc(bufsize); + if(!writebuf) { + pr_err("%s, alloc writebuf failed!\n", __func__); + vfree(readbuf); + return -ENOMEM; + } + offsets = vmalloc(ebcnt * sizeof(int)); + if(!offsets) { + pr_err("%s, alloc offsets failed!\n", __func__); + vfree(readbuf); + vfree(writebuf); + return -ENOMEM; + } + pr_info("bitfliptest begin!\n"); + + for (i = 0; i < ebcnt; i++) + offsets[i] = mtd->erasesize; + prandom_bytes(writebuf, bufsize); + + err = mtd_test_erase_whole_device(); + if(err) + goto out; + + while(1) { + if ((op & 1023) == 0) + pr_info("%d operations done\n", op); + err = bitfliptest_do_operation(); + if (err) + goto out; + if(errcnt >= threshold) { + pr_info("Test times: %d, read times: %d, read pages: %d, bit-flip: %d.\n", op, rdcnt, rdpgcnt, errcnt); + break; + } + cond_resched(); + op += 1; + } + +out: + vfree(offsets); + vfree(readbuf); + vfree(writebuf); + pr_info("bitfliptest finished, %d operations done!\n", op); + return err; +} + +static int __init nandflash_bitfliptest_init(void) +{ + int err = 0; + uint64_t tmp = 0; + + pr_info(KERN_INFO "\n"); + pr_info(KERN_INFO "=================================================\n"); + + if (dev < 0) { + pr_info("Please specify a valid mtd-device via module parameter\n"); + return -EINVAL; + } + + pr_info("MTD device: %d\n", dev); + + mtd = get_mtd_device(NULL, dev); + if (IS_ERR(mtd)) { + err = PTR_ERR(mtd); + pr_info("error: cannot get MTD device\n"); + return err; + } + mtd_part = (struct mtd_part *)mtd; + + if (mtd->type != MTD_NANDFLASH) { + pr_info("this test requires NAND flash\n"); + goto out; + } + + tmp = mtd->size; + do_div(tmp, mtd->erasesize); + ebcnt = tmp; + pgcnt = mtd->erasesize / mtd->writesize; + pgsize = mtd->writesize; + + pr_info("MTD device size %llu, eraseblock size %u, " + "page size %u, count of eraseblocks %u, pages per " + "eraseblock %u, OOB size %u\n", + (unsigned long long)mtd->size, mtd->erasesize, + mtd->writesize, ebcnt, pgcnt, mtd->oobsize); + + err = mtd_test_scan_bad_block(); + if (err) + goto out; + + err = mtd_test_bitfliptest(); + if(err) { + pr_err("bitfliptest failed!\n"); + goto out; + } + +out: + pr_info(KERN_INFO "=================================================\n"); + if(bbt != NULL) + vfree(bbt); + put_mtd_device(mtd); + + return -1; +} + +static void __exit nandflash_bitfliptest_exit(void) +{ + return; +} + +module_init(nandflash_bitfliptest_init); +module_exit(nandflash_bitfliptest_exit); + +MODULE_DESCRIPTION("mtd_bitflip_test"); +MODULE_AUTHOR("ming.tang@spreadtrum.com"); +MODULE_LICENSE("GPL"); diff --git a/drivers/mtd/tests/sprd_mtdtest/nandflash_bitfliptest/readme.txt b/drivers/mtd/tests/sprd_mtdtest/nandflash_bitfliptest/readme.txt new file mode 100755 index 00000000..760e164f --- /dev/null +++ b/drivers/mtd/tests/sprd_mtdtest/nandflash_bitfliptest/readme.txt @@ -0,0 +1,9 @@ +bitfliptest——位翻转测试，用于测试当前系统在做数据存取时发生bit-flip的概率，测试时长由当前系统的稳定性和设定的阀值共同决定。 + +参数说明： +dev:用于指定测试使用的mtd分区，默认值为4 +threshold:用于指定bit-flip的阀值，即当bit-flip的总数达到阀值即会停止，默认值为100。 + +使用方法： +root后加载测试模块并传入参数，测试结果通过kernel log输出; +cmd:insmod nandflash_bitfliptest.ko dev=4 threshold=100 \ No newline at end of file diff --git a/drivers/mtd/tests/sprd_mtdtest/nandflash_ecctest/Makefile b/drivers/mtd/tests/sprd_mtdtest/nandflash_ecctest/Makefile new file mode 100755 index 00000000..3af72abe --- /dev/null +++ b/drivers/mtd/tests/sprd_mtdtest/nandflash_ecctest/Makefile @@ -0,0 +1 @@ +obj-m += nandflash_ecctest.o diff --git a/drivers/mtd/tests/sprd_mtdtest/nandflash_ecctest/nandflash_ecctest.c b/drivers/mtd/tests/sprd_mtdtest/nandflash_ecctest/nandflash_ecctest.c new file mode 100755 index 00000000..fcaf449c --- /dev/null +++ b/drivers/mtd/tests/sprd_mtdtest/nandflash_ecctest/nandflash_ecctest.c @@ -0,0 +1,273 @@ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +struct mtd_part { + struct mtd_info mtd; + struct mtd_info *master; + loff_t offset; + struct list_head list; +}; + +#define CBIT(v, n) ((v) & (1 << (n))) +#define BCLR(v, n) ((v) = (v) & ~(1 << (n))) + +static struct mtd_info *mtd = NULL; +static int dev = 4; +module_param(dev, int, S_IRUGO); +MODULE_PARM_DESC(dev, "MTD device number to use"); + +static int insert_biterror(unsigned char *buf) +{ + unsigned int bit = 0; + unsigned int byte = 0; + + while (byte < mtd->writesize) { + for (bit = 0; bit <= 7; bit++) { + if (CBIT(buf[byte], bit)) { + BCLR(buf[byte], bit); + pr_info("Inserted biterror @ %u/%u\n", byte, bit); + return 0; + } + } + byte++; + } + pr_err("biterror: Failed to find a '1' bit\n"); + return -EIO; +} + +static int erase_eraseblock(unsigned int ebnum) +{ + int err = 0; + struct erase_info ei = {0}; + + ei.mtd = mtd; + ei.addr = ebnum * mtd->erasesize; + ei.len = mtd->erasesize; + + err = mtd_erase(mtd, &ei); + if (err) { + pr_err("err %d while erasing EB %d\n", err, ebnum); + return err; + } + + if (ei.state == MTD_ERASE_FAILED) { + pr_err("some erase error occurred at EB %d\n", ebnum); + return -EIO; + } + + return 0; +} + +static int write_oob(loff_t offset, unsigned char *databuf, unsigned int len, unsigned char *oobbuf, unsigned int ooblen, unsigned int mode) +{ + struct mtd_oob_ops ops = {0}; + int err = 0; + + ops.mode = mode; + ops.len = len; + ops.retlen = 0; + ops.ooblen = ooblen; + ops.oobretlen = 0; + ops.ooboffs = 0; + ops.datbuf = databuf; + ops.oobbuf = oobbuf; + err = mtd->_write_oob(mtd, offset, &ops); + if (err || ops.oobretlen != ops.ooblen || ops.retlen != ops.len) { + pr_err("write address: 0x%.8x's failed, err:%d!", (unsigned int)offset, err); + if(err == 0) { + pr_err("expect:%d , %d real:%d, %d\n", ops.len, ops.ooblen, ops.retlen, ops.oobretlen); + err = -1; + } + } + + return err; +} + +static int read_oob(loff_t offset, unsigned char *databuf, unsigned int len, unsigned char *oobbuf, unsigned int ooblen, unsigned int mode) +{ + struct mtd_oob_ops ops = {0}; + int err = 0; + + ops.mode = mode; + ops.len = len; + ops.retlen = 0; + ops.ooblen = ooblen; + ops.oobretlen = 0; + ops.ooboffs = 0; + ops.datbuf = databuf; + ops.oobbuf = oobbuf; + err = mtd->_read_oob(mtd, offset, &ops); + if (err || ops.oobretlen != ops.ooblen || ops.retlen != ops.len) { + pr_err("read address: 0x%.8x failed, err:%d!\n", (unsigned int)offset, err); + if(err == 0) { + pr_err("expect:%d , %d real:%d, %d\n", ops.len, ops.ooblen, ops.retlen, ops.oobretlen); + err = -1; + } else if(err == -EUCLEAN) { + err = 0; + } + } + + return err; +} + +static int __init nandflash_ecctest_init(void) +{ + unsigned int read_len = 0; + int err = 0; + loff_t offset = 0; + unsigned int j = 0; + struct rnd_state rnd_state; + unsigned int corrected_num = 0; + unsigned char *oobbuf_w = NULL; + unsigned char *oobbuf_r = NULL; + unsigned char *pagebuf_r = NULL; + unsigned char *pagebuf_w = NULL; + unsigned char *pagebuf_v = NULL; + struct mtd_ecc_stats stats = {0}; + struct mtd_part *mtd_part = NULL; + + printk("\n"); + pr_info("--------------------------------------------------------------------------\n"); + /*prepare work*/ + mtd = get_mtd_device(NULL, 4); + if (IS_ERR(mtd)) { + err = PTR_ERR(mtd); + pr_err("Cannot get MTD device\n"); + return err; + } + + mtd_part = (struct mtd_part *)mtd; + + if(!mtd->_block_isbad || !mtd->_block_markbad || !mtd->_read_oob || !mtd->_write_oob || + !mtd->_read || !mtd->_write) { + pr_err("Some mtd's method may be NULL!"); + goto out; + } + + pagebuf_r = vmalloc(mtd->writesize); + oobbuf_r = vmalloc(mtd->oobsize); + pagebuf_w = vmalloc(mtd->writesize); + pagebuf_v = vmalloc(mtd->writesize); + oobbuf_w = vmalloc(mtd->oobsize); + if(!pagebuf_r || !oobbuf_r || !pagebuf_w || !pagebuf_v || !oobbuf_w) { + pr_err("Alloc buf failed!"); + goto out; + } + + //find a vailid block + while(offset < mtd->size) { + if(mtd->_block_isbad(mtd, offset)) { + offset += mtd->erasesize; + } else { + break; + } + } + + if(offset >= mtd->size) { + pr_err("The whole mtd_partion are bad!\n"); + goto out; + } + + err = erase_eraseblock(((long)offset)/mtd->erasesize); + if(err) { + pr_err("Erase failed at EB: %d\n", ((unsigned int)offset)/mtd->erasesize); + goto out; + } + pr_info("Erase block %d successfully!\n", ((unsigned int)offset)/mtd->erasesize); + + //prepare value + prandom_seed_state(&rnd_state, 1); + prandom_bytes_state(&rnd_state, oobbuf_w, mtd->oobsize); + prandom_bytes_state(&rnd_state, pagebuf_w, mtd->writesize); + memcpy(pagebuf_v, pagebuf_w, mtd->writesize); + + err = write_oob(offset, pagebuf_w, mtd->writesize, oobbuf_w, mtd->oobsize, MTD_OPS_PLACE_OOB); + if(err != 0) { + pr_err("1.1 write failed!\n"); + goto erase; + } + + err = read_oob(offset, pagebuf_r, mtd->writesize, oobbuf_r, mtd->oobsize, MTD_OPS_PLACE_OOB); + if(err != 0) { + pr_err("1.1 read failed!\n"); + goto erase; + } + + if(memcmp(pagebuf_v, pagebuf_r, mtd->writesize) != 0) { + pr_err("1.1 compare page failed!\n"); + goto erase; + } + memcpy(oobbuf_w, oobbuf_r, mtd->oobsize); + + for(j = 0; j < mtd->writesize * 8; j ++) + { + offset += mtd->writesize; + err = insert_biterror(pagebuf_w); + if(err) { + pr_err("Insert biterror failed!\n"); + goto erase; + } + pr_info("Insert %d bit-flip sucessfully!\n", j + 1); + + err = write_oob(offset, pagebuf_w, mtd->writesize, oobbuf_w, mtd->oobsize, MTD_OPS_RAW); + if(err != 0) { + pr_err("2.1 write failed!\n"); + goto erase; + } + + stats = mtd_part->master->ecc_stats; + err = read_oob(offset, pagebuf_r, mtd->writesize, oobbuf_r, mtd->oobsize, MTD_OPS_PLACE_OOB); + if(err != 0) { + pr_err("2.1 read failed!\n"); + break; + } + + if(memcmp(pagebuf_v, pagebuf_r, mtd->writesize) != 0) { + pr_err("2.2 compare page failed!\n"); + goto erase; + } + + corrected_num = mtd_part->master->ecc_stats.corrected - stats.corrected; + if(corrected_num != (j + 1)) { + pr_err("Bit-flip num is not match, expected:%d, really:%d\n", j + 1, corrected_num); + goto erase; + } + } + + pr_info("Test successfully, this system can corrected %d bit-flip at most!\n", j); +erase: + err = erase_eraseblock(((unsigned int)offset)/mtd->erasesize); + if(err) { + pr_err("1.3 erase failed at EB: %d\n", ((unsigned int)offset)/mtd->erasesize); + goto out; + } +out: + vfree(pagebuf_r); + vfree(oobbuf_r); + vfree(pagebuf_w); + vfree(oobbuf_w); + pr_info("--------------------------------------------------------------------------\n"); + return -1; +} + +static void __exit nandflash_ecctest_exit(void) +{ + put_mtd_device(mtd); + return; +} + +module_init(nandflash_ecctest_init); +module_exit(nandflash_ecctest_exit); + +MODULE_DESCRIPTION("Test ecc strength"); +MODULE_AUTHOR("ming.tang"); +MODULE_LICENSE("GPL"); diff --git a/drivers/mtd/tests/sprd_mtdtest/nandflash_ecctest/readme.txt b/drivers/mtd/tests/sprd_mtdtest/nandflash_ecctest/readme.txt new file mode 100755 index 00000000..ee9ba97f --- /dev/null +++ b/drivers/mtd/tests/sprd_mtdtest/nandflash_ecctest/readme.txt @@ -0,0 +1,8 @@ +ecctest——纠错能力测试,用于获取当前系统实际纠错能力。 + +参数说明： +dev:用于指定测试使用的mtd分区，默认值为4 + +使用方法： +root后加载测试模块并传入参数，测试结果通过kernel log输出; +cmd:insmod nandflash_ecctest.ko dev=4 \ No newline at end of file diff --git a/drivers/mtd/tests/sprd_mtdtest/nandflash_postest/Makefile b/drivers/mtd/tests/sprd_mtdtest/nandflash_postest/Makefile new file mode 100755 index 00000000..b1b1b9ae --- /dev/null +++ b/drivers/mtd/tests/sprd_mtdtest/nandflash_postest/Makefile @@ -0,0 +1 @@ +obj-m += nandflash_postest.o diff --git a/drivers/mtd/tests/sprd_mtdtest/nandflash_postest/nandflash_postest.c b/drivers/mtd/tests/sprd_mtdtest/nandflash_postest/nandflash_postest.c new file mode 100755 index 00000000..9691190a --- /dev/null +++ b/drivers/mtd/tests/sprd_mtdtest/nandflash_postest/nandflash_postest.c @@ -0,0 +1,321 @@ +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +static struct mtd_info *mtd = NULL; +static int dev = 4; +static int bad_pos = 0; +static int bad_len = 2; +module_param(dev, int, S_IRUGO); +module_param(bad_pos, int, S_IRUGO); +module_param(bad_len, int, S_IRUGO); +MODULE_PARM_DESC(dev, "MTD device number to use"); +MODULE_PARM_DESC(bad_pos, "indicate the bad_flag's position"); +MODULE_PARM_DESC(bad_len, "indicate the bad_flag's length"); + +static int erase_eraseblock(struct mtd_info *mtd, long offset) +{ + int err = 0; + struct erase_info ei = {0}; + + ei.mtd = mtd; + ei.addr = (offset/mtd->erasesize)*mtd->erasesize; + ei.len = mtd->erasesize; + + err = mtd_erase(mtd, &ei); + if (err) { + pr_err("err %d while erasing addr:0x%.8x\n", err, (unsigned int)offset); + return err; + } + + if (ei.state == MTD_ERASE_FAILED) { + pr_err("some erase error occurred at addr: 0x%.8x\n", (unsigned int)offset); + return -EIO; + } + + return 0; +} + +static int write_oob(loff_t offset, unsigned char *databuf, unsigned int len, unsigned char *oobbuf, unsigned int ooblen, unsigned int mode) +{ + struct mtd_oob_ops ops = {0}; + int err = 0; + + ops.mode = mode; + ops.len = len; + ops.retlen = 0; + ops.ooblen = ooblen; + ops.oobretlen = 0; + ops.ooboffs = 0; + ops.datbuf = databuf; + ops.oobbuf = oobbuf; + err = mtd->_write_oob(mtd, offset, &ops); + if (err || ops.oobretlen != ops.ooblen || ops.retlen != ops.len) { + pr_err("write address: 0x%.8x's failed, err:%d!", (unsigned int)offset, err); + if(err == 0) { + pr_err("expect:%d , %d real:%d, %d\n", ops.len, ops.ooblen, ops.retlen, ops.oobretlen); + err = -1; + } + } + + return err; +} + +static int read_oob(loff_t offset, unsigned char *databuf, unsigned int len, unsigned char *oobbuf, unsigned int ooblen, unsigned int mode) +{ + struct mtd_oob_ops ops = {0}; + int err = 0; + + ops.mode = mode; + ops.len = len; + ops.retlen = 0; + ops.ooblen = ooblen; + ops.oobretlen = 0; + ops.ooboffs = 0; + ops.datbuf = databuf; + ops.oobbuf = oobbuf; + err = mtd->_read_oob(mtd, offset, &ops); + if (err || ops.oobretlen != ops.ooblen || ops.retlen != ops.len) { + pr_err("read address: 0x%.8x's failed, err:%d!", (unsigned int)offset, err); + if(err == 0) { + pr_err("expect:%d , %d real:%d, %d\n", ops.len, ops.ooblen, ops.retlen, ops.oobretlen); + err = -1; + } + } + + return err; +} + +static int __init nandflash_postest_init(void) +{ + int err = 0; + loff_t offset = 0; + unsigned char *pagebuf_r = NULL; + unsigned char *oobbuf_r = NULL; + unsigned char *pagebuf_w = NULL; + unsigned char *oobbuf_w = NULL; + unsigned int j = 0, i = 0; + unsigned int ret_len = 0; + struct rnd_state rnd_state; + unsigned int tmp_len = 0, tmp_pos = 0; + + printk("\n"); + pr_info("----------------------------------------------------------------------\n"); + + /*prepare work*/ + mtd = get_mtd_device(NULL, dev); + if (IS_ERR(mtd)) { + err = PTR_ERR(mtd); + pr_err("Cannot get MTD device\n"); + return err; + } + + if(!mtd->_block_isbad || !mtd->_block_markbad || !mtd->_read_oob || !mtd->_write_oob || + !mtd->_read || !mtd->_write) { + pr_err("Some mtd's func may be NULL!"); + goto out; + } + + oobbuf_r = vmalloc(mtd->oobsize); + oobbuf_w = vmalloc(mtd->oobsize); + pagebuf_r = vmalloc(mtd->writesize); + pagebuf_w = vmalloc(mtd->writesize); + if(!pagebuf_r || !oobbuf_r || !pagebuf_w || !oobbuf_w ) { + pr_err("Alloc buf failed!"); + goto out; + } + + //find a vailid block + while(offset < mtd->size) { + if(!(mtd->_block_isbad(mtd, offset))) + break; + offset += mtd->erasesize; + } + + if(offset >= mtd->size) { + pr_err("The whole mtd_partion are bad!\n"); + goto out; + } + + /*step 1:bad flag test*/ + pr_info("Step 1 begin:\n"); + err = erase_eraseblock(mtd, (long)offset); + if(err) { + pr_err("1.1 erase failed at EB: %d\n", ((unsigned int)offset)/mtd->erasesize); + goto out; + } + mtd->_block_markbad(mtd, offset); + pr_info("Mark block 0x%.8x as bad!\n", (unsigned int)offset); + + err = read_oob(offset, NULL, 0, oobbuf_r, mtd->oobsize, MTD_OPS_RAW); + if(err != 0) { + pr_err("1.2 read failed!\n"); + goto erase; + } + + for(i = bad_pos; i < (bad_pos + bad_len); i ++) { + if(oobbuf_r[i] != 0) { + pr_err("1.2 bad_flag pos failed, pos:%d flag:0x%.2x\n", i, oobbuf_r[i]); + goto erase; + } + } + + if(mtd->_block_isbad(mtd, offset) != 1) { + pr_err("1.3 bad_flag func failed!\n"); + goto erase; + } + + err = erase_eraseblock(mtd, (long)offset); + if(err) { + pr_err("1.4 erase failed at EB: %d\n", ((unsigned int)offset)/mtd->erasesize); + goto out; + } + pr_info("Bad block test successful: pos and func are all ok!\n"); + pr_info("Step 1 end successfully!\n"); + + /* step 2: oob and main area position test */ + pr_info("Step 2 begin:\n"); + //prepare value + prandom_seed_state(&rnd_state, 1); + prandom_bytes_state(&rnd_state, oobbuf_w, mtd->oobsize); + prandom_bytes_state(&rnd_state, pagebuf_w, mtd->writesize); + + offset += mtd->erasesize; + err = erase_eraseblock(mtd, (long)offset); + if(err) { + pr_err("2.1 erase failed at EB: %d\n", ((unsigned int)offset)/mtd->erasesize); + goto out; + } + pr_info("Erase block %d successfully!\n", ((unsigned int)offset)/mtd->erasesize); + + err = write_oob(offset, pagebuf_w, mtd->writesize, oobbuf_w, mtd->oobsize, MTD_OPS_RAW); + if(err != 0) { + pr_err("2.1 write failed!\n"); + goto erase; + } + + err = read_oob(offset, pagebuf_r, mtd->writesize, oobbuf_r, mtd->oobsize, MTD_OPS_RAW); + if(err != 0) { + pr_err("2.1 read failed!\n"); + goto erase; + } + + if(memcmp(oobbuf_w, oobbuf_r, mtd->oobsize) != 0) { + pr_err("2.1 compare oob failed!\n"); + goto erase; + } + if(memcmp(pagebuf_w, pagebuf_r, mtd->writesize) != 0) { + pr_err("2.1 compare page failed!\n"); + goto erase; + } + + offset += mtd->writesize; + err = write_oob(offset, pagebuf_w, mtd->writesize, oobbuf_w, mtd->oobsize, MTD_OPS_PLACE_OOB); + if(err != 0) { + pr_err("2.2 write failed!\n"); + goto erase; + } + + err = read_oob(offset, pagebuf_r, mtd->writesize, oobbuf_r, mtd->oobsize, MTD_OPS_RAW); + if(err != 0) { + pr_err("2.2 read failed!\n"); + goto erase; + } + + for(i = 0, j = 0; j < mtd->ecclayout->oobavail; i ++)//test spare_info pos + { + tmp_pos = mtd->ecclayout->oobfree[i].offset; + tmp_len = mtd->ecclayout->oobfree[i].length; + if(tmp_pos == 0 && tmp_len == 0) { + pr_err("2.2 ecclayout may wrong!\n"); + goto erase; + } + if(memcmp(oobbuf_w + tmp_pos, oobbuf_r + tmp_pos, tmp_len) != 0) { + pr_err("2.2 spare_info pos test failed!\n"); + goto erase; + } + j += tmp_len; + } + + if(memcmp(pagebuf_r, pagebuf_w, mtd->writesize) != 0) { + pr_err("2.2 compare page failed!\n"); + goto erase; + } + + err = read_oob(offset, pagebuf_r, mtd->writesize, oobbuf_r, mtd->oobsize, MTD_OPS_PLACE_OOB); + if(err != 0) { + pr_err("2.3 read failed!\n"); + goto erase; + } + + if(memcmp(pagebuf_w, pagebuf_r, mtd->writesize) != 0) { + pr_err("2.3 compare page failed!\n"); + goto erase; + } + memcpy(oobbuf_w, oobbuf_r, mtd->oobsize); + + pr_info("Step 2 end successfully!\n"); + + /*step 3: oob and main area position test with ecc*/ + pr_info("Step 3 begin:\n"); + offset += mtd->writesize; + //write main with ecc + err = mtd->_write(mtd, offset, mtd->writesize, &ret_len, pagebuf_w); + if((err != 0 ) || (ret_len != mtd->writesize)) { + pr_err("3.1 write page failed at %#llx\n", (long long)offset); + goto erase; + } + + //read main with ecc + err = mtd->_read(mtd, offset, mtd->writesize, &ret_len, pagebuf_r); + if((err != 0 ) || (ret_len != mtd->writesize)) { + pr_err("3.1 read page failed at %#llx\n", (long long)offset); + goto erase; + } + if(memcmp(pagebuf_w, pagebuf_r, mtd->writesize) != 0) { + pr_err("3.1 compare page failed!\n"); + } + pr_info("Step 3 end successfully!\n"); + pr_info("The position test end successfully!\n"); + +erase: + err = erase_eraseblock(mtd, (long)offset); + if(err) { + pr_err("4.1 erase failed at EB: %d\n", ((unsigned int)offset)/mtd->erasesize); + goto out; + } +out: + vfree(pagebuf_r); + vfree(oobbuf_r); + vfree(pagebuf_w); + vfree(oobbuf_w); + pr_info("----------------------------------------------------------------------\n"); + return -1;//inorder to return failed when insmod this module +} + +static void __exit nandflash_postest_exit(void) +{ + put_mtd_device(mtd); + return; +} + +module_init(nandflash_postest_init); +module_exit(nandflash_postest_exit); + +MODULE_DESCRIPTION("Test basic nandflash driver"); +MODULE_AUTHOR("ming.tang"); +MODULE_LICENSE("GPL"); diff --git a/drivers/mtd/tests/sprd_mtdtest/nandflash_postest/readme.txt b/drivers/mtd/tests/sprd_mtdtest/nandflash_postest/readme.txt new file mode 100755 index 00000000..540be1f6 --- /dev/null +++ b/drivers/mtd/tests/sprd_mtdtest/nandflash_postest/readme.txt @@ -0,0 +1,15 @@ +postest——位置测试 +本测试主要测试驱动的基本操作是否正确。该测试会将一个正常的block标记成bad_block，测试结束后需要调用强制擦除接口将该bad_block恢复正常（将/sys/kernel/debug/nfc_base/allowEraseBadBlock置为1）。 + +参数说明： +dev:用于指定测试使用的mtd分区，默认值为4 +bad_pos:用于指定坏块标记的位置，默认值为0 +bad_len:用于指定坏块标记的长度，默认值为2 bytes + +使用方法： +1 将/sys/kernel/debug/nfc_base/allowEraseBadBlock置为1； +cmd:echo "1" > /sys/kernel/debug/nfc_base/allowEraseBadBlock +2 root后加载测试模块并传入参数，测试结果通过kernel log输出; +cmd:insmod nandflash_postest.ko dev=4 bad_pos=0 bad_len=2 +3 将/sys/kernel/debug/nfc_base/allowEraseBadBlock置为0 +cmd:echo "0" > /sys/kernel/debug/nfc_base/allowEraseBadBlock \ No newline at end of file diff --git a/drivers/mtd/tests/sprd_mtdtest/nandflash_stdtest/Makefile b/drivers/mtd/tests/sprd_mtdtest/nandflash_stdtest/Makefile new file mode 100755 index 00000000..8e266ee6 --- /dev/null +++ b/drivers/mtd/tests/sprd_mtdtest/nandflash_stdtest/Makefile @@ -0,0 +1 @@ +obj-m += nandflash_stdtest.o diff --git a/drivers/mtd/tests/sprd_mtdtest/nandflash_stdtest/nandflash_stdtest.c b/drivers/mtd/tests/sprd_mtdtest/nandflash_stdtest/nandflash_stdtest.c new file mode 100755 index 00000000..a4f1563b --- /dev/null +++ b/drivers/mtd/tests/sprd_mtdtest/nandflash_stdtest/nandflash_stdtest.c @@ -0,0 +1,2110 @@ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#undef pr_fmt +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +static int dev = 4; +module_param(dev, int, S_IRUGO); +MODULE_PARM_DESC(dev, "MTD device number to use"); + +static struct mtd_info *mtd = NULL; +static unsigned char *bbt = NULL; + +static int ebcnt; +static int pgcnt; +static int errcnt; +static int pgsize; +static int subpgsize; +static int use_offset; +static int use_len; +static int use_len_max; +static int vary_offset; +static struct rnd_state rnd_state; +static struct timeval start, finish; +static int goodebcnt; +static int subsize; +static int subcount; +static int bufsize; +static unsigned char * writebuf; +static unsigned char *readbuf; +static int *offsets; +static unsigned char *twopages; +static unsigned char *boundary; + +static inline void mtd_test_start_timing(void) +{ + do_gettimeofday(&start); +} + +static inline void mtd_test_stop_timing(void) +{ + do_gettimeofday(&finish); +} + +void mtd_test_dump_buf(unsigned char *buf, unsigned int num, unsigned int col_num) +{ + unsigned int i = 0, j = 0; + + if(col_num == 0) + col_num = 32; + + for(i = 0; i < num; i ++) + { + if((i%col_num) == 0) { + if(i != 0) + pr_info("\n"); + pr_info("%.8x:", j); + j += col_num; + } + if((i%4) == 0) + pr_info(" "); + pr_info("%.2x", buf[i]); + } + pr_info("\n"); +} + +static int mtd_test_erase_eraseblock(int ebnum, int blocks) +{ + int err = 0; + struct erase_info ei = {0}; + + if(blocks == 0) + blocks = 1; + + ei.mtd = mtd; + ei.addr = ebnum * mtd->erasesize; + ei.len = mtd->erasesize * blocks; + + err = mtd_erase(mtd, &ei); + if (err) { + pr_err("error %d while erasing EB %d\n", err, ebnum); + return err; + } + + if (ei.state == MTD_ERASE_FAILED) { + pr_err("Some erase error occurred at EB %d\n", ebnum); + return -EIO; + } + + return 0; +} + +static int mtd_test_erase_whole_device(void) +{ + int err = 0; + unsigned int i = 0; + + for (i = 0; i < ebcnt; ++i) { + if (bbt[i]) + continue; + err = mtd_test_erase_eraseblock(i, 0); + if (err) + return err; + cond_resched(); + } + return 0; +} + +static int mtd_test_scan_bad_block(void) +{ + unsigned int i = 0, bad = 0; + + bbt = (unsigned char *)vmalloc(ebcnt); + if (!bbt) { + pr_info("error: cannot allocate memory\n"); + return -ENOMEM; + } + + pr_info("scanning for bad eraseblocks first\n"); + for (i = 0; i < ebcnt; ++i) { + bbt[i] = mtd_block_isbad(mtd, i * mtd->erasesize) ? 1 : 0; + if (bbt[i]) + bad += 1; + cond_resched(); + } + pr_info("scanned %d eraseblocks, %d are bad\n", ebcnt, bad); + goodebcnt = ebcnt - bad; + return 0; +} + +static int readtest_read_page(int ebnum, unsigned char *databuf, unsigned char *oobbuf) +{ + int i = 0, ret = 0; + unsigned int read = 0; + struct mtd_oob_ops ops = {0}; + loff_t addr = ebnum * mtd->erasesize; + + memset(databuf, 0 , mtd->erasesize); + memset(oobbuf, 0 , mtd->erasesize); + for (i = 0; i < pgcnt; i++) { + ret = mtd_read(mtd, addr, pgsize, &read, databuf); + if (ret || read != pgsize) { + pr_err("error: read failed at %#llx, ret: %d read: %d\n", + (long long)addr, ret, read); + return ret ? ret : -EINVAL; + } + + ops.mode = MTD_OPS_PLACE_OOB; + ops.len = 0; + ops.retlen = 0; + ops.ooblen = mtd->oobsize; + ops.oobretlen = 0; + ops.ooboffs = 0; + ops.datbuf = NULL; + ops.oobbuf = oobbuf; + ret = mtd_read_oob(mtd, addr, &ops); + if (ret || ops.oobretlen != mtd->oobsize) { + pr_err("error: read oob failed at " + "%#llx, ret: %d oobretlen: %d\n", (long long)addr, ret, ops.oobretlen); + return ret ? ret : -EINVAL; + } + databuf += mtd->writesize; + oobbuf += mtd->oobsize; + addr += mtd->writesize; + } + + return ret; +} + +static int mtd_test_readtest(void) +{ + int ret = 0; + unsigned int i = 0; + unsigned char *iobuf = NULL, *iobuf1 = NULL; + + iobuf = (unsigned char *)kmalloc(mtd->erasesize, GFP_KERNEL); + iobuf1 = (unsigned char *)kmalloc(mtd->erasesize, GFP_KERNEL); + if (!iobuf1 || !iobuf) { + pr_err("error: cannot allocate enough memory, %d, 0x%.8x, 0x%.8x!\n", mtd->erasesize, (unsigned int)iobuf, (unsigned int)iobuf1); + goto out; + } + + pr_info("readtest begin!\n"); + for (i = 0; i < ebcnt; ++i) { + + if (bbt[i]) + continue; + ret = readtest_read_page(i, iobuf, iobuf1); + if (ret) { + pr_err("read block %d failed!\n", i); + mtd_test_dump_buf(iobuf, mtd->erasesize, 32); + mtd_test_dump_buf(iobuf1, mtd->oobsize, 32); + goto out; + } + cond_resched(); + } + + pr_info("readtest finished successfully!\n"); +out: + kfree(iobuf); + kfree(iobuf1); + return ret; +} + +static int pagetest_write_eraseblock(int ebnum) +{ + int err = 0; + size_t written = 0; + loff_t addr = ebnum * mtd->erasesize; + + prandom_bytes_state(&rnd_state, writebuf, mtd->erasesize); + cond_resched(); + err = mtd_write(mtd, addr, mtd->erasesize, &written, writebuf); + if (err || written != mtd->erasesize) { + pr_err("%s, write failed at %#llx\n", __func__, (long long)addr); + return err ? err : -EINVAL; + } + + return err; +} + +static int pagetest_verify_eraseblock(int ebnum) +{ + int err = 0; + size_t read = 0; + uint32_t j = 0, i = 0; + loff_t addr0 = 0, addrn = 0; + loff_t addr = ebnum * mtd->erasesize; + + for (i = 0; i < ebcnt && bbt[i]; ++i) + addr0 += mtd->erasesize; + + addrn = mtd->size; + for (i = 0; i < ebcnt && bbt[ebcnt - i - 1]; ++i) + addrn -= mtd->erasesize; + + prandom_bytes_state(&rnd_state, writebuf, mtd->erasesize); + for (j = 0; j < pgcnt - 1; ++j, addr += pgsize) { + /* Do a read to set the internal dataRAMs to different data */ + err = mtd_read(mtd, addr0, bufsize, &read, twopages); + if (mtd_is_bitflip(err)) + err = 0; + if (err || read != bufsize) { + pr_err("2.1 error: read failed at %#llx\n", + (long long)addr0); + return err; + } + err = mtd_read(mtd, addrn - bufsize, bufsize, &read, twopages); + if (mtd_is_bitflip(err)) + err = 0; + if (err || read != bufsize) { + pr_err("2.2 error: read failed at %#llx\n", + (long long)(addrn - bufsize)); + return err; + } + memset(twopages, 0, bufsize); + err = mtd_read(mtd, addr, bufsize, &read, twopages); + if (mtd_is_bitflip(err)) + err = 0; + if (err || read != bufsize) { + pr_err("2.3 error: read failed at %#llx\n", + (long long)addr); + break; + } + if (memcmp(twopages, writebuf + (j * pgsize), bufsize)) { + pr_err("2.4 error: verify failed at %#llx\n", + (long long)addr); + } + } + /* Check boundary between eraseblocks */ + if (addr <= addrn - pgsize - pgsize && !bbt[ebnum + 1]) { + struct rnd_state old_state = rnd_state; + + /* Do a read to set the internal dataRAMs to different data */ + err = mtd_read(mtd, addr0, bufsize, &read, twopages); + if (mtd_is_bitflip(err)) + err = 0; + if (err || read != bufsize) { + pr_err("2.5 error: read failed at %#llx\n", + (long long)addr0); + return err; + } + err = mtd_read(mtd, addrn - bufsize, bufsize, &read, twopages); + if (mtd_is_bitflip(err)) + err = 0; + if (err || read != bufsize) { + pr_err("2.6 error: read failed at %#llx\n", + (long long)(addrn - bufsize)); + return err; + } + memset(twopages, 0, bufsize); + err = mtd_read(mtd, addr, bufsize, &read, twopages); + if (mtd_is_bitflip(err)) + err = 0; + if (err || read != bufsize) { + pr_err("2.7 error: read failed at %#llx\n", + (long long)addr); + return err; + } + memcpy(boundary, writebuf + mtd->erasesize - pgsize, pgsize); + prandom_bytes_state(&rnd_state, boundary + pgsize, pgsize); + if (memcmp(twopages, boundary, bufsize)) { + pr_err("2.8 error: verify failed at %#llx\n", + (long long)addr); + } + rnd_state = old_state; + } + return err; +} + +static int pagetest_crosstest(void) +{ + int err = 0; + size_t read = 0; + unsigned int i = 0; + loff_t addr = 0, addr0 = 0, addrn = 0; + unsigned char *pp1 = NULL, *pp2 = NULL, *pp3 = NULL, *pp4 = NULL; + +// pr_info("crosstest\n"); + pp1 = kmalloc(pgsize * 4, GFP_KERNEL); + if (!pp1) { + pr_err("2.9 error: cannot allocate memory\n"); + return -ENOMEM; + } + pp2 = pp1 + pgsize; + pp3 = pp2 + pgsize; + pp4 = pp3 + pgsize; + memset(pp1, 0, pgsize * 4); + + addr0 = 0; + for (i = 0; i < ebcnt && bbt[i]; ++i) + addr0 += mtd->erasesize; + + addrn = mtd->size; + for (i = 0; i < ebcnt && bbt[ebcnt - i - 1]; ++i) + addrn -= mtd->erasesize; + + /* Read 2nd-to-last page to pp1 */ + addr = addrn - pgsize - pgsize; + err = mtd_read(mtd, addr, pgsize, &read, pp1); + if (mtd_is_bitflip(err)) + err = 0; + if (err || read != pgsize) { + pr_err("2.10 error: read failed at %#llx\n", + (long long)addr); + kfree(pp1); + return err; + } + + /* Read 3rd-to-last page to pp1 */ + addr = addrn - pgsize - pgsize - pgsize; + err = mtd_read(mtd, addr, pgsize, &read, pp1); + if (mtd_is_bitflip(err)) + err = 0; + if (err || read != pgsize) { + pr_err("2.11 error: read failed at %#llx\n", + (long long)addr); + kfree(pp1); + return err; + } + + /* Read first page to pp2 */ + addr = addr0; +// pr_info("reading page at %#llx\n", (long long)addr); + err = mtd_read(mtd, addr, pgsize, &read, pp2); + if (mtd_is_bitflip(err)) + err = 0; + if (err || read != pgsize) { + pr_err("2.12 error: read failed at %#llx\n", + (long long)addr); + kfree(pp1); + return err; + } + + /* Read last page to pp3 */ + addr = addrn - pgsize; +// pr_info("reading page at %#llx\n", (long long)addr); + err = mtd_read(mtd, addr, pgsize, &read, pp3); + if (mtd_is_bitflip(err)) + err = 0; + if (err || read != pgsize) { + pr_err("2.13 error: read failed at %#llx\n", + (long long)addr); + kfree(pp1); + return err; + } + + /* Read first page again to pp4 */ + addr = addr0; +// pr_info("reading page at %#llx\n", (long long)addr); + err = mtd_read(mtd, addr, pgsize, &read, pp4); + if (mtd_is_bitflip(err)) + err = 0; + if (err || read != pgsize) { + pr_err("2.14 error: read failed at %#llx\n", + (long long)addr); + kfree(pp1); + return err; + } + + /* pp2 and pp4 should be the same */ +// pr_info("verifying pages read at %#llx match\n", (long long)addr0); + if (memcmp(pp2, pp4, pgsize)) { + pr_err("2.15 verify failed!\n"); + }// else if (!err) +// pr_info("crosstest ok\n"); + kfree(pp1); + return err; +} + +static int pagetest_erasecrosstest(void) +{ + int err = 0; + loff_t addr0 = 0; + char *readbuf = twopages; + size_t read = 0, written = 0; + unsigned int i = 0, ebnum = 0, ebnum2 = 0; + +// pr_info("erasecrosstest\n"); + + ebnum = 0; + addr0 = 0; + for (i = 0; i < ebcnt && bbt[i]; ++i) { + addr0 += mtd->erasesize; + ebnum += 1; + } + + ebnum2 = ebcnt - 1; + while (ebnum2 && bbt[ebnum2]) + ebnum2 -= 1; + +// pr_info("erasing block %d\n", ebnum); + err = mtd_test_erase_eraseblock(ebnum, 0); + if (err) + return err; + +// pr_info("writing 1st page of block %d\n", ebnum); + prandom_bytes_state(&rnd_state, writebuf, pgsize); + strcpy(writebuf, "There is no data like this!"); + err = mtd_write(mtd, addr0, pgsize, &written, writebuf); + if (err || written != pgsize) { + pr_err("2.16 error: write failed at %#llx\n", + (long long)addr0); + return err ? err : -EINVAL; + } + +// pr_info("reading 1st page of block %d\n", ebnum); + memset(readbuf, 0, pgsize); + err = mtd_read(mtd, addr0, pgsize, &read, readbuf); + if (mtd_is_bitflip(err)) + err = 0; + if (err || read != pgsize) { + pr_err("2.17 error: read failed at %#llx\n", + (long long)addr0); + return err ? err : -EINVAL; + } + +// pr_info("verifying 1st page of block %d\n", ebnum); + if (memcmp(writebuf, readbuf, pgsize)) { + pr_err("2.18 verify failed!\n"); + return -1; + } + +// pr_info("erasing block %d\n", ebnum); + err = mtd_test_erase_eraseblock(ebnum, 0); + if (err) + return err; + +// pr_info("writing 1st page of block %d\n", ebnum); + prandom_bytes_state(&rnd_state, writebuf, pgsize); + strcpy(writebuf, "There is no data like this!"); + err = mtd_write(mtd, addr0, pgsize, &written, writebuf); + if (err || written != pgsize) { + pr_err("2.19 error: write failed at %#llx\n", + (long long)addr0); + return err ? err : -EINVAL; + } + +// pr_info("erasing block %d\n", ebnum2); + err = mtd_test_erase_eraseblock(ebnum2, 0); + if (err) + return err; + +// pr_info("reading 1st page of block %d\n", ebnum); + memset(readbuf, 0, pgsize); + err = mtd_read(mtd, addr0, pgsize, &read, readbuf); + if (mtd_is_bitflip(err)) + err = 0; + if (err || read != pgsize) { + pr_err("2.20 error: read failed at %#llx\n", + (long long)addr0); + return err ? err : -EINVAL; + } + +// pr_info("verifying 1st page of block %d\n", ebnum); + if (memcmp(writebuf, readbuf, pgsize)) { + pr_err("2.21 verify failed!\n"); + return -1; + } + +// if (!err) +// pr_info("erasecrosstest ok\n"); + return err; +} + +static int pagetest_erasetest(void) +{ + int err = 0; + loff_t addr0 = 0; + size_t read = 0, written = 0; + unsigned int i = 0, ebnum = 0, ok = 1; + +// pr_info("erasetest\n"); + + ebnum = 0; + addr0 = 0; + for (i = 0; i < ebcnt && bbt[i]; ++i) { + addr0 += mtd->erasesize; + ebnum += 1; + } + +// pr_info("erasing block %d\n", ebnum); + err = mtd_test_erase_eraseblock(ebnum, 0); + if (err) + return err; + +// pr_info("writing 1st page of block %d\n", ebnum); + prandom_bytes_state(&rnd_state, writebuf, pgsize); + err = mtd_write(mtd, addr0, pgsize, &written, writebuf); + if (err || written != pgsize) { + pr_err("2.22 error: write failed at %#llx\n", + (long long)addr0); + return err ? err : -EINVAL; + } + +// pr_info("erasing block %d\n", ebnum); + err = mtd_test_erase_eraseblock(ebnum, 0); + if (err) + return err; + +// pr_info("reading 1st page of block %d\n", ebnum); + err = mtd_read(mtd, addr0, pgsize, &read, twopages); + if (mtd_is_bitflip(err)) + err = 0; + if (err || read != pgsize) { + pr_err("2.23 error: read failed at %#llx\n", + (long long)addr0); + return err ? err : -EINVAL; + } + +// pr_info("verifying 1st page of block %d is all 0xff\n", ebnum); + for (i = 0; i < pgsize; ++i) + if (twopages[i] != 0xff) { + pr_err("2.24 verifying all 0xff failed at %d\n", + i); + ok = 0; + break; + } + +// if (ok && !err) +// pr_info("erasetest ok\n"); + + return err; +} + +static int mtd_test_pagetest(void) +{ + int err = 0; + unsigned int i = 0; + + bufsize = mtd->writesize * 2; + writebuf = kzalloc(mtd->erasesize, GFP_KERNEL); + if (!writebuf) { + pr_err("error: alloc writebuf failed!\n"); + err = -ENOMEM; + goto out; + } + twopages = kzalloc(bufsize, GFP_KERNEL); + if (!twopages) { + pr_err("error: alloc twopages failed!\n"); + err = -ENOMEM; + goto out; + } + boundary = kzalloc(bufsize, GFP_KERNEL); + if (!boundary) { + pr_err("error: alloc boundary failed!\n"); + err = -ENOMEM; + goto out; + } + pr_info("pagetest begin!\n"); + + err = mtd_test_erase_whole_device(); + if(err) + goto out; + + prandom_seed_state(&rnd_state, 1); + for (i = 0; i < ebcnt; ++i) { + if (bbt[i]) + continue; + err = pagetest_write_eraseblock(i); + if (err) + goto out; + cond_resched(); + } + + prandom_seed_state(&rnd_state, 1); + for (i = 0; i < ebcnt; ++i) { + if (bbt[i]) + continue; + err = pagetest_verify_eraseblock(i); + if (err) + goto out; + cond_resched(); + } + + err = pagetest_crosstest(); + if (err) + goto out; + + err = pagetest_erasecrosstest(); + if (err) + goto out; + + err = pagetest_erasetest(); + if (err) + goto out; + + pr_info("pagetest finished successfullly!\n"); + +out: + kfree(writebuf); + kfree(boundary); + kfree(twopages); + return err; +} + +static int subpagetest_write_eraseblock(int ebnum) +{ + int err = 0; + size_t written = 0; + loff_t addr = ebnum * mtd->erasesize; + + prandom_bytes_state(&rnd_state, writebuf, subpgsize); + err = mtd_write(mtd, addr, subpgsize, &written, writebuf); + if (unlikely(err || written != subpgsize)) { + pr_err("error: write failed at %#llx, err: %d, written: %d\n", + (long long)addr, err, written); + return err ? err : -EINVAL; + } + + addr += subpgsize; + prandom_bytes_state(&rnd_state, writebuf, subpgsize); + err = mtd_write(mtd, addr, subpgsize, &written, writebuf); + if (unlikely(err || written != subpgsize)) { + pr_err("error: write failed at %#llx, err: %d, written: %d\n", + (long long)addr, err, written); + return err ? err : -EINVAL; + } + + return err; +} + +static int subpagetest_write_eraseblock2(int ebnum) +{ + int err = 0; + size_t written = 0; + unsigned int k = 0; + loff_t addr = ebnum * mtd->erasesize; + + for (k = 1; k < 33; ++k) { + if (addr + (subpgsize * k) > (ebnum + 1) * mtd->erasesize) + break; + prandom_bytes_state(&rnd_state, writebuf, subpgsize * k); + err = mtd_write(mtd, addr, subpgsize * k, &written, writebuf); + if (unlikely(err || written != subpgsize * k)) { + pr_err("error: write failed at %#llx, err: %d, written: %d\n", + (long long)addr, err, written); + return err ? err : -EINVAL; + } + addr += subpgsize * k; + } + + return err; +} + +static int subpagetest_verify_eraseblock(int ebnum) +{ + int err = 0; + size_t read = 0; + loff_t addr = ebnum * mtd->erasesize; + + prandom_bytes_state(&rnd_state, writebuf, subpgsize); + memset(readbuf, 0, subpgsize); + err = mtd_read(mtd, addr, subpgsize, &read, readbuf); + if (unlikely(err || read != subpgsize)) { + if (mtd_is_bitflip(err) && read == subpgsize) { + pr_info("ECC correction at %#llx\n", + (long long)addr); + err = 0; + } else { + pr_err("error: read failed at %#llx\n", + (long long)addr); + return err ? err : -EINVAL; + } + } + if (unlikely(memcmp(readbuf, writebuf, subpgsize))) { + pr_err("error: verify failed at %#llx\n", + (long long)addr); + pr_info("------------- written----------------\n"); + mtd_test_dump_buf(writebuf, subpgsize, 32); + pr_info("------------- read ------------------\n"); + mtd_test_dump_buf(readbuf, subpgsize, 32); + pr_info("-------------------------------------\n"); + } + + addr += subpgsize; + + prandom_bytes_state(&rnd_state, writebuf, subpgsize); + memset(readbuf, 0, subpgsize); + err = mtd_read(mtd, addr, subpgsize, &read, readbuf); + if (unlikely(err || read != subpgsize)) { + if (mtd_is_bitflip(err) && read == subpgsize) { + pr_info("ECC correction at %#llx\n", + (long long)addr); + err = 0; + } else { + pr_err("error: read failed at %#llx\n", + (long long)addr); + return err ? err : -EINVAL; + } + } + if (unlikely(memcmp(readbuf, writebuf, subpgsize))) { + pr_info("error: verify failed at %#llx\n", + (long long)addr); + pr_info("------------- written----------------\n"); + mtd_test_dump_buf(writebuf, subpgsize, 32); + pr_info("------------- read ------------------\n"); + mtd_test_dump_buf(readbuf, subpgsize, 32); + pr_info("-------------------------------------\n"); + return -1; + } + + return err; +} + +static int subpagetest_verify_eraseblock2(int ebnum) +{ + int err = 0; + size_t read = 0; + unsigned int k = 0; + loff_t addr = ebnum * mtd->erasesize; + + for (k = 1; k < 33; ++k) { + if (addr + (subpgsize * k) > (ebnum + 1) * mtd->erasesize) + break; + prandom_bytes_state(&rnd_state, writebuf, subpgsize * k); + memset(readbuf, 0, subpgsize * k); + err = mtd_read(mtd, addr, subpgsize * k, &read, readbuf); + if (unlikely(err || read != subpgsize * k)) { + if (mtd_is_bitflip(err) && read == subpgsize * k) { + pr_info("ECC correction at %#llx\n", + (long long)addr); + err = 0; + } else { + pr_err("error: read failed at " + "%#llx\n", (long long)addr); + return err ? err : -EINVAL; + } + } + if (unlikely(memcmp(readbuf, writebuf, subpgsize * k))) { + pr_err("error: verify failed at %#llx\n", + (long long)addr); + return -1; + } + addr += subpgsize * k; + } + + return err; +} + +static int subpagetest_verify_eraseblock_ff(int ebnum) +{ + int err = 0; + uint32_t j = 0; + size_t read = 0; + loff_t addr = ebnum * mtd->erasesize; + + memset(writebuf, 0xff, subpgsize); + for (j = 0; j < mtd->erasesize / subpgsize; ++j) { + memset(readbuf, 0, subpgsize); + err = mtd_read(mtd, addr, subpgsize, &read, readbuf); + if (unlikely(err || read != subpgsize)) { + if (mtd_is_bitflip(err) && read == subpgsize) { + pr_info("ECC correction at %#llx\n", + (long long)addr); + err = 0; + } else { + pr_err("error: read failed at " + "%#llx\n", (long long)addr); + return err ? err : -EINVAL; + } + } + if (unlikely(memcmp(readbuf, writebuf, subpgsize))) { + pr_err("error: verify 0xff failed at " + "%#llx\n", (long long)addr); + return -1; + } + addr += subpgsize; + } + + return err; +} + +static int subpagetest_verify_all_eraseblocks_ff(void) +{ + int err = 0; + unsigned int i = 0; + +// pr_info("verifying all eraseblocks for 0xff\n"); + for (i = 0; i < ebcnt; ++i) { + if (bbt[i]) + continue; + err = subpagetest_verify_eraseblock_ff(i); + if (err) + return err; + cond_resched(); + } +// pr_info("verified %u eraseblocks\n", i); + return 0; +} + +static int mtd_test_subpagetest(void) +{ + int err = 0; + unsigned int i = 0; + + writebuf = kmalloc(32 * subpgsize, GFP_KERNEL); + if (!writebuf) { + pr_err("Error: cannot allocate enough memory!\n"); + err = -ENOMEM; + goto out; + } + readbuf = kmalloc(32 * subpgsize, GFP_KERNEL); + if (!readbuf) { + pr_err("Error: cannot allocate enough memory!\n"); + err = -ENOMEM; + goto out; + } + pr_info("subpagetest begin!\n"); + err = mtd_test_erase_whole_device(); + if (err) + goto out; + +// pr_info("writing whole device\n"); + prandom_seed_state(&rnd_state, 1); + for (i = 0; i < ebcnt; ++i) { + if (bbt[i]) + continue; + err = subpagetest_write_eraseblock(i); + if (unlikely(err)) + goto out; + cond_resched(); + } +// pr_info("written %u eraseblocks\n", i); + + prandom_seed_state(&rnd_state, 1); +// pr_info("verifying all eraseblocks\n"); + for (i = 0; i < ebcnt; ++i) { + if (bbt[i]) + continue; + err = subpagetest_verify_eraseblock(i); + if (unlikely(err)) + goto out; + cond_resched(); + } +// pr_info("verified %u eraseblocks\n", i); + + err = mtd_test_erase_whole_device(); + if (err) + goto out; + + err = subpagetest_verify_all_eraseblocks_ff(); + if (err) + goto out; + + /* Write all eraseblocks */ + prandom_seed_state(&rnd_state, 3); +// pr_info("writing whole device\n"); + for (i = 0; i < ebcnt; ++i) { + if (bbt[i]) + continue; + err = subpagetest_write_eraseblock2(i); + if (unlikely(err)) + goto out; + cond_resched(); + } +// pr_info("written %u eraseblocks\n", i); + + /* Check all eraseblocks */ + prandom_seed_state(&rnd_state, 3); +// pr_info("verifying all eraseblocks\n"); + for (i = 0; i < ebcnt; ++i) { + if (bbt[i]) + continue; + err = subpagetest_verify_eraseblock2(i); + if (unlikely(err)) + goto out; + cond_resched(); + } +// pr_info("verified %u eraseblocks\n", i); + + err = mtd_test_erase_whole_device(); + if (err) + goto out; + + err = subpagetest_verify_all_eraseblocks_ff(); + if (err) + goto out; + + pr_info("subpagetest finished successfully!\n"); + +out: + kfree(readbuf); + kfree(writebuf); + return err; +} + +static void oobtest_do_vary_offset(void) +{ + use_len -= 1; + if (use_len < 1) { + use_offset += 1; + if (use_offset >= use_len_max) + use_offset = 0; + use_len = use_len_max - use_offset; + } +} + +static int oobtest_write_eraseblock(int ebnum) +{ + int err = 0; + unsigned int i = 0; + struct mtd_oob_ops ops; + loff_t addr = ebnum * mtd->erasesize; + + for (i = 0; i < pgcnt; ++i, addr += mtd->writesize) { + prandom_bytes_state(&rnd_state, writebuf, use_len); + ops.mode = MTD_OPS_AUTO_OOB; + ops.len = 0; + ops.retlen = 0; + ops.ooblen = use_len; + ops.oobretlen = 0; + ops.ooboffs = use_offset; + ops.datbuf = NULL; + ops.oobbuf = writebuf; + err = mtd_write_oob(mtd, addr, &ops); + if (err || ops.oobretlen != use_len) { + pr_err("error: writeoob failed at %#llx\n", + (long long)addr); + pr_err("error: use_len %d, use_offset %d\n", + use_len, use_offset); + errcnt += 1; + return err ? err : -1; + } + if (vary_offset) + oobtest_do_vary_offset(); + } + + return err; +} + +static int oobtest_write_whole_device(void) +{ + int err = 0; + unsigned int i = 1; + +// pr_info("writing OOBs of whole device\n"); + for (i = 0; i < ebcnt; ++i) { + if (bbt[i]) + continue; + err = oobtest_write_eraseblock(i); + if (err) + return err; + cond_resched(); + } +// pr_info("written %u eraseblocks\n", i); + return 0; +} + +static int oobtest_verify_eraseblock(int ebnum) +{ + int err = 0; + unsigned int i = 0; + struct mtd_oob_ops ops = {0}; + loff_t addr = ebnum * mtd->erasesize; + + for (i = 0; i < pgcnt; ++i, addr += mtd->writesize) { + prandom_bytes_state(&rnd_state, writebuf, use_len); + ops.mode = MTD_OPS_AUTO_OOB; + ops.len = 0; + ops.retlen = 0; + ops.ooblen = use_len; + ops.oobretlen = 0; + ops.ooboffs = use_offset; + ops.datbuf = NULL; + ops.oobbuf = readbuf; + err = mtd_read_oob(mtd, addr, &ops); + if (err || ops.oobretlen != use_len) { + pr_err("error: readoob failed at %#llx\n", + (long long)addr); + errcnt += 1; + return err ? err : -1; + } + if (memcmp(readbuf, writebuf, use_len)) { + pr_err("error: verify failed at %#llx\n", + (long long)addr); + errcnt += 1; + if (errcnt > 1000) { + pr_err("error: too many errors\n"); + return -1; + } + } + if (use_offset != 0 || use_len < mtd->ecclayout->oobavail) { + int k; + + ops.mode = MTD_OPS_AUTO_OOB; + ops.len = 0; + ops.retlen = 0; + ops.ooblen = mtd->ecclayout->oobavail; + ops.oobretlen = 0; + ops.ooboffs = 0; + ops.datbuf = NULL; + ops.oobbuf = readbuf; + err = mtd_read_oob(mtd, addr, &ops); + if (err || ops.oobretlen != mtd->ecclayout->oobavail) { + pr_err("error: readoob failed at %#llx\n", + (long long)addr); + errcnt += 1; + return err ? err : -1; + } + if (memcmp(readbuf + use_offset, writebuf, use_len)) { + pr_err("error: verify failed at %#llx\n", + (long long)addr); + errcnt += 1; + if (errcnt > 1000) { + pr_err("error: too many errors\n"); + return -1; + } + } + for (k = 0; k < use_offset; ++k) + if (readbuf[k] != 0xff) { + pr_err("error: verify 0xff " + "failed at %#llx\n", + (long long)addr); + errcnt += 1; + if (errcnt > 1000) { + pr_err("error: too " + "many errors\n"); + return -1; + } + } + for (k = use_offset + use_len; + k < mtd->ecclayout->oobavail; ++k) + if (readbuf[k] != 0xff) { + pr_err("error: verify 0xff " + "failed at %#llx\n", + (long long)addr); + errcnt += 1; + if (errcnt > 1000) { + pr_err("error: too " + "many errors\n"); + return -1; + } + } + } + if (vary_offset) + oobtest_do_vary_offset(); + } + return err; +} + +/* +add by ming.tang +adjust the str when mtd->ecclayout->oobavail is not 4bytes alignment +@str:the string need to be adjusted +@str_len:the string's length +@sub_len:mtd->ecclayout->oobavail +*/ +static void oobtest_adjust(char *str, unsigned int str_len, unsigned int sub_len) +{ + int i = 0; + char *tmp_str = NULL; + unsigned int tmp_len = 0; + + tmp_len = ((sub_len >> 2) + 1) << 2; + tmp_str = (char *)vmalloc(str_len); + if(!tmp_str) { + pr_err("%s, can't get enough memory!\n", __func__); + return; + } + + memcpy(tmp_str, str, str_len); + memset(str, 0, str_len); + + for(i = 0; i < str_len/tmp_len; i++) + { + memcpy(str + (sub_len * i), tmp_str + (tmp_len * i), sub_len); + } + vfree(tmp_str); + return; +} + +static int oobtest_verify_eraseblock_in_one_go(int ebnum) +{ + int err = 0; + struct mtd_oob_ops ops = {0}; + loff_t addr = ebnum * mtd->erasesize; + size_t len = mtd->ecclayout->oobavail * pgcnt; + + prandom_bytes_state(&rnd_state, writebuf, (((mtd->ecclayout->oobavail >> 2) + 1) << 2) * pgcnt); + if(mtd->ecclayout->oobavail%4 != 0) + oobtest_adjust(writebuf, (((mtd->ecclayout->oobavail >> 2) + 1) << 2) * pgcnt, mtd->ecclayout->oobavail); + ops.mode = MTD_OPS_AUTO_OOB; + ops.len = 0; + ops.retlen = 0; + ops.ooblen = len; + ops.oobretlen = 0; + ops.ooboffs = 0; + ops.datbuf = NULL; + ops.oobbuf = readbuf; + err = mtd_read_oob(mtd, addr, &ops); + if (err || ops.oobretlen != len) { + pr_err("error: readoob failed at %#llx\n", + (long long)addr); + errcnt += 1; + return err ? err : -1; + } + if (memcmp(readbuf, writebuf, len)) { + pr_err("error: verify failed at %#llx\n", + (long long)addr); + errcnt += 1; + if (errcnt > 1000) { + pr_err("error: too many errors\n"); + return -1; + } + } + + return err; +} + +static int oobtest_verify_all_eraseblocks(void) +{ + int err = 0; + unsigned int i = 0; + +// pr_info("verifying all eraseblocks\n"); + for (i = 0; i < ebcnt; ++i) { + if (bbt[i]) + continue; + err = oobtest_verify_eraseblock(i); + if (err) + return err; + cond_resched(); + } +// pr_info("verified %u eraseblocks\n", i); + return 0; +} + +static int mtd_test_oobtest(void) +{ + int err = 0; + unsigned int i = 0; + loff_t addr = 0, addr0 = 0; + struct mtd_oob_ops ops = {0}; + + err = -ENOMEM; + readbuf = vmalloc(mtd->erasesize); + if (!readbuf) { + pr_err("error: alloc readbuf failed!\n"); + goto out; + } + writebuf = vmalloc(mtd->erasesize); + if (!writebuf) { + pr_err("error: alloc writebuf failed!\n"); + goto out; + } + + use_offset = 0; + use_len = mtd->ecclayout->oobavail; + use_len_max = mtd->ecclayout->oobavail; + vary_offset = 0; + pr_info("oobtest begin!\n"); + + /* First test: write all OOB, read it back and verify */ + pr_info("test 1 of 5\n"); + + err = mtd_test_erase_whole_device(); + if (err) + goto out; + + prandom_seed_state(&rnd_state, 1); + err = oobtest_write_whole_device(); + if (err) + goto out; + + prandom_seed_state(&rnd_state, 1); + err = oobtest_verify_all_eraseblocks(); + if (err) + goto out; + + /* + * Second test: write all OOB, a block at a time, read it back and + * verify. + */ + pr_info("test 2 of 5\n"); + + err = mtd_test_erase_whole_device(); + if (err) + goto out; + + prandom_seed_state(&rnd_state, 3); + err = oobtest_write_whole_device(); + if (err) + goto out; + + /* Check all eraseblocks */ + prandom_seed_state(&rnd_state, 3); +// pr_info("verifying all eraseblocks\n"); + for (i = 0; i < ebcnt; ++i) { + if (bbt[i]) + continue; + err = oobtest_verify_eraseblock_in_one_go(i); + if (err) + goto out; + cond_resched(); + } +// pr_info("verified %u eraseblocks\n", i); + + /* + * Third test: write OOB at varying offsets and lengths, read it back + * and verify. + */ + pr_info("test 3 of 5\n"); + + err = mtd_test_erase_whole_device(); + if (err) + goto out; + + /* Write all eraseblocks */ + use_offset = 0; + use_len = mtd->ecclayout->oobavail; + use_len_max = mtd->ecclayout->oobavail; + vary_offset = 1; + prandom_seed_state(&rnd_state, 5); + + err = oobtest_write_whole_device(); + if (err) + goto out; + + /* Check all eraseblocks */ + use_offset = 0; + use_len = mtd->ecclayout->oobavail; + use_len_max = mtd->ecclayout->oobavail; + vary_offset = 1; + prandom_seed_state(&rnd_state, 5); + err = oobtest_verify_all_eraseblocks(); + if (err) + goto out; + + use_offset = 0; + use_len = mtd->ecclayout->oobavail; + use_len_max = mtd->ecclayout->oobavail; + vary_offset = 0; + + /* Fourth test: try to write off end of device */ + pr_info("test 4 of 5\n"); + + err = mtd_test_erase_whole_device(); + if (err) + goto out; + + addr0 = 0; + for (i = 0; i < ebcnt && bbt[i]; ++i) + addr0 += mtd->erasesize; + + /* Attempt to write off end of OOB */ + ops.mode = MTD_OPS_AUTO_OOB; + ops.len = 0; + ops.retlen = 0; + ops.ooblen = 1; + ops.oobretlen = 0; + ops.ooboffs = mtd->ecclayout->oobavail; + ops.datbuf = NULL; + ops.oobbuf = writebuf; + pr_info("attempting to start write past end of OOB\n"); + pr_info("an error is expected...\n"); + err = mtd_write_oob(mtd, addr0, &ops); + if (err) { + pr_info("error occurred as expected\n"); + err = 0; + } else { + pr_info("error: can write past end of OOB\n"); + errcnt += 1; + } + + /* Attempt to read off end of OOB */ + ops.mode = MTD_OPS_AUTO_OOB; + ops.len = 0; + ops.retlen = 0; + ops.ooblen = 1; + ops.oobretlen = 0; + ops.ooboffs = mtd->ecclayout->oobavail; + ops.datbuf = NULL; + ops.oobbuf = readbuf; + pr_info("attempting to start read past end of OOB\n"); + pr_info("an error is expected...\n"); + err = mtd_read_oob(mtd, addr0, &ops); + if (err) { + pr_info("error occurred as expected\n"); + err = 0; + } else { + pr_err("error: can read past end of OOB\n"); + errcnt += 1; + } + + if (bbt[ebcnt - 1]) + pr_info("skipping end of device tests because last " + "block is bad\n"); + else { + /* Attempt to write off end of device */ + ops.mode = MTD_OPS_AUTO_OOB; + ops.len = 0; + ops.retlen = 0; + ops.ooblen = mtd->ecclayout->oobavail + 1; + ops.oobretlen = 0; + ops.ooboffs = 0; + ops.datbuf = NULL; + ops.oobbuf = writebuf; + pr_info("attempting to write past end of device\n"); + pr_info("an error is expected...\n"); + err = mtd_write_oob(mtd, mtd->size - mtd->writesize, &ops); + if (err) { + pr_info("error occurred as expected\n"); + err = 0; + } else { + pr_err("error: wrote past end of device\n"); + errcnt += 1; + } + + /* Attempt to read off end of device */ + ops.mode = MTD_OPS_AUTO_OOB; + ops.len = 0; + ops.retlen = 0; + ops.ooblen = mtd->ecclayout->oobavail + 1; + ops.oobretlen = 0; + ops.ooboffs = 0; + ops.datbuf = NULL; + ops.oobbuf = readbuf; + pr_info("attempting to read past end of device\n"); + pr_info("an error is expected...\n"); + err = mtd_read_oob(mtd, mtd->size - mtd->writesize, &ops); + if (err) { + pr_info("error occurred as expected\n"); + err = 0; + } else { + pr_err("error: read past end of device\n"); + errcnt += 1; + } + + err = mtd_test_erase_eraseblock(ebcnt - 1, 0); + if (err) + goto out; + + /* Attempt to write off end of device */ + ops.mode = MTD_OPS_AUTO_OOB; + ops.len = 0; + ops.retlen = 0; + ops.ooblen = mtd->ecclayout->oobavail; + ops.oobretlen = 0; + ops.ooboffs = 1; + ops.datbuf = NULL; + ops.oobbuf = writebuf; + pr_info("attempting to write past end of device\n"); + pr_info("an error is expected...\n"); + err = mtd_write_oob(mtd, mtd->size - mtd->writesize, &ops); + if (err) { + pr_info("error occurred as expected\n"); + err = 0; + } else { + pr_err("error: wrote past end of device\n"); + errcnt += 1; + } + + /* Attempt to read off end of device */ + ops.mode = MTD_OPS_AUTO_OOB; + ops.len = 0; + ops.retlen = 0; + ops.ooblen = mtd->ecclayout->oobavail; + ops.oobretlen = 0; + ops.ooboffs = 1; + ops.datbuf = NULL; + ops.oobbuf = readbuf; + pr_info("attempting to read past end of device\n"); + pr_info("an error is expected...\n"); + err = mtd_read_oob(mtd, mtd->size - mtd->writesize, &ops); + if (err) { + pr_info("error occurred as expected\n"); + err = 0; + } else { + pr_err("error: read past end of device\n"); + errcnt += 1; + } + } + + /* Fifth test: write / read across block boundaries */ + pr_info("test 5 of 5\n"); + + /* Erase all eraseblocks */ + err = mtd_test_erase_whole_device(); + if (err) + goto out; + + /* Write all eraseblocks */ + prandom_seed_state(&rnd_state, 11); +// pr_info("writing OOBs of whole device\n"); + for (i = 0; i < ebcnt - 1; ++i) { + int cnt = 2; + int pg; + size_t sz = mtd->ecclayout->oobavail; + if (bbt[i] || bbt[i + 1]) + continue; + addr = (i + 1) * mtd->erasesize - mtd->writesize; + for (pg = 0; pg < cnt; ++pg) { + prandom_bytes_state(&rnd_state, writebuf, sz); + ops.mode = MTD_OPS_AUTO_OOB; + ops.len = 0; + ops.retlen = 0; + ops.ooblen = sz; + ops.oobretlen = 0; + ops.ooboffs = 0; + ops.datbuf = NULL; + ops.oobbuf = writebuf; + err = mtd_write_oob(mtd, addr, &ops); + if (err) + goto out; + cond_resched(); + addr += mtd->writesize; + } + } +// pr_info("written %u eraseblocks\n", i); + + /* Check all eraseblocks */ + prandom_seed_state(&rnd_state, 11); +// pr_info("verifying all eraseblocks\n"); + for (i = 0; i < ebcnt - 1; ++i) { + if (bbt[i] || bbt[i + 1]) + continue; + prandom_bytes_state(&rnd_state, writebuf, + (((mtd->ecclayout->oobavail >> 2) + 1) << 2) * 2); + if(mtd->ecclayout->oobavail%4 != 0) + oobtest_adjust(writebuf, (((mtd->ecclayout->oobavail >> 2) + 1) << 2) * 2, mtd->ecclayout->oobavail); + addr = (i + 1) * mtd->erasesize - mtd->writesize; + ops.mode = MTD_OPS_AUTO_OOB; + ops.len = 0; + ops.retlen = 0; + ops.ooblen = mtd->ecclayout->oobavail * 2; + ops.oobretlen = 0; + ops.ooboffs = 0; + ops.datbuf = NULL; + ops.oobbuf = readbuf; + err = mtd_read_oob(mtd, addr, &ops); + if (err) + goto out; + if (memcmp(readbuf, writebuf, mtd->ecclayout->oobavail * 2)) { + pr_err("error: verify failed at %#llx\n", + (long long)addr); + errcnt += 1; + if (errcnt > 1000) { + pr_err("error: too many errors\n"); + goto out; + } + } + cond_resched(); + } +// pr_info("verified %u eraseblocks\n", i); + + pr_info("oobtest finished with %d errors!\n", errcnt); +out: + vfree(writebuf); + vfree(readbuf); + + return err; +} + +static long speedtest_calc_speed(void) +{ + long ms = 0; + uint64_t k = 0; + + ms = (finish.tv_sec - start.tv_sec) * 1000 + + (finish.tv_usec - start.tv_usec) / 1000; + if (ms == 0) + return 0; + k = goodebcnt * (mtd->erasesize / 1024) * 1000; + do_div(k, ms); + return k; +} + +static int speedtest_write_eraseblock(int ebnum) +{ + int err = 0; + size_t written = 0; + loff_t addr = ebnum * mtd->erasesize; + + err = mtd_write(mtd, addr, mtd->erasesize, &written, writebuf); + if (err || written != mtd->erasesize) { + pr_err("error: write failed at %#llx\n", addr); + if (!err) + err = -EINVAL; + } + + return err; +} + +static int speedtest_write_eraseblock_by_page(int ebnum) +{ + int err = 0; + size_t written = 0; + unsigned int i = 0; + void *buf = writebuf; + loff_t addr = ebnum * mtd->erasesize; + + for (i = 0; i < pgcnt; i++) { + err = mtd_write(mtd, addr, pgsize, &written, buf); + if (err || written != pgsize) { + pr_err("error: write failed at %#llx\n", + addr); + if (!err) + err = -EINVAL; + break; + } + addr += pgsize; + buf += pgsize; + } + + return err; +} + +static int speedtest_write_eraseblock_by_2pages(int ebnum) +{ + int err = 0; + void *buf = writebuf; + unsigned int i = 0, n = pgcnt / 2; + size_t written = 0, sz = pgsize * 2; + loff_t addr = ebnum * mtd->erasesize; + + for (i = 0; i < n; i++) { + err = mtd_write(mtd, addr, sz, &written, buf); + if (err || written != sz) { + pr_err("error: write failed at %#llx\n", + addr); + if (!err) + err = -EINVAL; + return err; + } + addr += sz; + buf += sz; + } + if (pgcnt % 2) { + err = mtd_write(mtd, addr, pgsize, &written, buf); + if (err || written != pgsize) { + pr_err("error: write failed at %#llx\n", + addr); + if (!err) + err = -EINVAL; + } + } + + return err; +} + +static int speedtest_read_eraseblock(int ebnum) +{ + int err = 0; + size_t read = 0; + loff_t addr = ebnum * mtd->erasesize; + + err = mtd_read(mtd, addr, mtd->erasesize, &read, writebuf); + /* Ignore corrected ECC errors */ + if (mtd_is_bitflip(err)) + err = 0; + if (err || read != mtd->erasesize) { + pr_err("error: read failed at %#llx\n", addr); + if (!err) + err = -EINVAL; + } + + return err; +} + +static int speedtest_read_eraseblock_by_page(int ebnum) +{ + int err = 0; + size_t read = 0; + unsigned int i = 0; + void *buf = writebuf; + loff_t addr = ebnum * mtd->erasesize; + + for (i = 0; i < pgcnt; i++) { + err = mtd_read(mtd, addr, pgsize, &read, buf); + /* Ignore corrected ECC errors */ + if (mtd_is_bitflip(err)) + err = 0; + if (err || read != pgsize) { + pr_err("error: read failed at %#llx\n", + addr); + if (!err) + err = -EINVAL; + break; + } + addr += pgsize; + buf += pgsize; + } + + return err; +} + +static int speedtest_read_eraseblock_by_2pages(int ebnum) +{ + int err = 0; + void *buf = writebuf; + size_t read = 0, sz = pgsize * 2; + unsigned int i = 0, n = pgcnt / 2; + loff_t addr = ebnum * mtd->erasesize; + + for (i = 0; i < n; i++) { + err = mtd_read(mtd, addr, sz, &read, buf); + /* Ignore corrected ECC errors */ + if (mtd_is_bitflip(err)) + err = 0; + if (err || read != sz) { + pr_err("error: read failed at %#llx\n", + addr); + if (!err) + err = -EINVAL; + return err; + } + addr += sz; + buf += sz; + } + if (pgcnt % 2) { + err = mtd_read(mtd, addr, pgsize, &read, buf); + /* Ignore corrected ECC errors */ + if (mtd_is_bitflip(err)) + err = 0; + if (err || read != pgsize) { + pr_err("error: read failed at %#llx\n", + addr); + if (!err) + err = -EINVAL; + } + } + + return err; +} + +static int mtd_test_speedtest(void ) +{ + int err = 0; + long speed = 0; + unsigned int i = 0, blocks = 0, j = 0, k = 0; + + writebuf = vmalloc(mtd->erasesize); + if(!writebuf) { + pr_err("%s, can't get enough memory!\n", __func__); + return -ENOMEM; + } + + memset(writebuf, 0, mtd->erasesize); + prandom_bytes(writebuf, mtd->erasesize); + + pr_info("speedtest begin!\n"); + err = mtd_test_erase_whole_device(); + if (err) + goto out; + + /* Write all eraseblocks, 1 eraseblock at a time */ +// pr_info("testing eraseblock write speed\n"); + mtd_test_start_timing(); + for (i = 0; i < ebcnt; ++i) { + if (bbt[i]) + continue; + err = speedtest_write_eraseblock(i); + if (err) + goto out; + cond_resched(); + } + mtd_test_stop_timing(); + speed = speedtest_calc_speed(); + pr_info("eraseblock write speed is %ld KiB/s\n", speed); + + /* Read all eraseblocks, 1 eraseblock at a time */ +// pr_info("testing eraseblock read speed\n"); + mtd_test_start_timing(); + for (i = 0; i < ebcnt; ++i) { + if (bbt[i]) + continue; + err = speedtest_read_eraseblock(i); + if (err) + goto out; + cond_resched(); + } + mtd_test_stop_timing(); + speed = speedtest_calc_speed(); + pr_info("eraseblock read speed is %ld KiB/s\n", speed); + + err = mtd_test_erase_whole_device(); + if (err) + goto out; + + /* Write all eraseblocks, 1 page at a time */ +// pr_info("testing page write speed\n"); + mtd_test_start_timing(); + for (i = 0; i < ebcnt; ++i) { + if (bbt[i]) + continue; + err = speedtest_write_eraseblock_by_page(i); + if (err) + goto out; + cond_resched(); + } + mtd_test_stop_timing(); + speed = speedtest_calc_speed(); + pr_info("page write speed is %ld KiB/s\n", speed); + + /* Read all eraseblocks, 1 page at a time */ +// pr_info("testing page read speed\n"); + mtd_test_start_timing(); + for (i = 0; i < ebcnt; ++i) { + if (bbt[i]) + continue; + err = speedtest_read_eraseblock_by_page(i); + if (err) + goto out; + cond_resched(); + } + mtd_test_stop_timing(); + speed = speedtest_calc_speed(); + pr_info("page read speed is %ld KiB/s\n", speed); + + err = mtd_test_erase_whole_device(); + if (err) + goto out; + + /* Write all eraseblocks, 2 pages at a time */ +// pr_info("testing 2 page write speed\n"); + mtd_test_start_timing(); + for (i = 0; i < ebcnt; ++i) { + if (bbt[i]) + continue; + err = speedtest_write_eraseblock_by_2pages(i); + if (err) + goto out; + cond_resched(); + } + mtd_test_stop_timing(); + speed = speedtest_calc_speed(); + pr_info("2 page write speed is %ld KiB/s\n", speed); + + /* Read all eraseblocks, 2 pages at a time */ +// pr_info("testing 2 page read speed\n"); + mtd_test_start_timing(); + for (i = 0; i < ebcnt; ++i) { + if (bbt[i]) + continue; + err = speedtest_read_eraseblock_by_2pages(i); + if (err) + goto out; + cond_resched(); + } + mtd_test_stop_timing(); + speed = speedtest_calc_speed(); + pr_info("2 page read speed is %ld KiB/s\n", speed); + + /* Erase all eraseblocks */ +// pr_info("Testing erase speed\n"); + mtd_test_start_timing(); + for (i = 0; i < ebcnt; ++i) { + if (bbt[i]) + continue; + err = mtd_test_erase_eraseblock(i, 0); + if (err) + goto out; + cond_resched(); + } + mtd_test_stop_timing(); + speed = speedtest_calc_speed(); + pr_info("erase speed is %ld KiB/s\n", speed); + + /* Multi-block erase all eraseblocks */ + for (k = 1; k < 7; k++) { + blocks = 1 << k; +// pr_info("Testing %dx multi-block erase speed\n", blocks); + mtd_test_start_timing(); + for (i = 0; i < ebcnt; ) { + for (j = 0; j < blocks && (i + j) < ebcnt; j++) + if (bbt[i + j]) + break; + if (j < 1) { + i++; + continue; + } + err = mtd_test_erase_eraseblock(i, j); + if (err) + goto out; + cond_resched(); + i += j; + } + mtd_test_stop_timing(); + speed = speedtest_calc_speed(); + pr_info("%dx multi-block erase speed is %ld KiB/s\n", + blocks, speed); + } + pr_info("speedtest finished successfully!\n"); + +out: + vfree(writebuf); + return err; +} + +static int stresstest_rand_eb(void) +{ + unsigned int eb = 0; + +again: + eb = prandom_u32(); + /* Read or write up 2 eraseblocks at a time - hence 'ebcnt - 1' */ + eb %= (ebcnt - 1); + if (bbt[eb]) + goto again; + return eb; +} + +static int stresstest_rand_offs(void) +{ + unsigned int offs = 0; + + offs = prandom_u32(); + offs %= bufsize; + return offs; +} + +static int stresstest_rand_len(int offs) +{ + unsigned int len = 0; + + len = prandom_u32(); + len %= (bufsize - offs); + return len; +} + +static int stresstest_do_read(void) +{ + int err = 0; + size_t read = 0; + loff_t addr = 0; + int eb = stresstest_rand_eb(); + int offs = stresstest_rand_offs(); + int len = stresstest_rand_len(offs); + + if (bbt[eb + 1]) { + if (offs >= mtd->erasesize) + offs -= mtd->erasesize; + if (offs + len > mtd->erasesize) + len = mtd->erasesize - offs; + } + addr = eb * mtd->erasesize + offs; + err = mtd_read(mtd, addr, len, &read, readbuf); + if (mtd_is_bitflip(err)) + err = 0; + if (unlikely(err || read != len)) { + pr_err("error: read failed at 0x%llx, err:%d len: %dread:%d\n", + (long long)addr, err, len, read); + if (!err) + err = -EINVAL; + return err; + } + return 0; +} + +static int stresstest_do_write(void) +{ + int err = 0; + loff_t addr = 0; + size_t written = 0; + int eb = stresstest_rand_eb(); + unsigned int offs = 0, len = 0; + + offs = offsets[eb]; + if (offs >= mtd->erasesize) { + err = mtd_test_erase_eraseblock(eb, 0); + if (err) + return err; + offs = offsets[eb] = 0; + } + len = stresstest_rand_len(offs); + len = ((len + pgsize - 1) / pgsize) * pgsize; + if (offs + len > mtd->erasesize) { + if (bbt[eb + 1]) + len = mtd->erasesize - offs; + else { + err = mtd_test_erase_eraseblock(eb + 1, 0); + if (err) + return err; + offsets[eb + 1] = 0; + } + } + addr = eb * mtd->erasesize + offs; + err = mtd_write(mtd, addr, len, &written, writebuf); + if (unlikely(err || written != len)) { + pr_err("error: write failed at 0x%llx\n", + (long long)addr); + if (!err) + err = -EINVAL; + return err; + } + offs += len; + while (offs > mtd->erasesize) { + offsets[eb++] = mtd->erasesize; + offs -= mtd->erasesize; + } + offsets[eb] = offs; + return 0; +} + +static int stresstest_do_operation(void) +{ + if (prandom_u32() & 1) { + return stresstest_do_read(); + } else { + return stresstest_do_write(); + } +} + +static int mtd_test_stresstest(void) +{ + int err = 0; + unsigned int i = 0, op = 0; + + bufsize = mtd->erasesize * 2; + readbuf = vmalloc(bufsize); + if(!readbuf) { + pr_err("%s, alloc readbuf failed!\n", __func__); + return -ENOMEM; + } + writebuf = vmalloc(bufsize); + if(!writebuf) { + pr_err("%s, alloc writebuf failed!\n", __func__); + vfree(readbuf); + return -ENOMEM; + } + offsets = vmalloc(ebcnt * sizeof(int)); + if(!offsets) { + pr_err("%s, alloc offsets failed!\n", __func__); + vfree(readbuf); + vfree(writebuf); + return -ENOMEM; + } + pr_info("stresstest begin!\n"); + + for (i = 0; i < ebcnt; i++) + offsets[i] = mtd->erasesize; + prandom_bytes(writebuf, bufsize); + + err = mtd_test_erase_whole_device(); + if(err) + goto out; + + for (op = 0; op < 10000; op++) { + if ((op & 1023) == 0) + pr_info("%d operations done\n", op); + err = stresstest_do_operation(); + if (err) + goto out; + cond_resched(); + } + +out: + vfree(offsets); + vfree(readbuf); + vfree(writebuf); + pr_info("stresstest finished, %d operations done!\n", op); + return err; +} + +static int __init nandflash_stdtest_init(void) +{ + int err = 0; + uint64_t tmp = 0; + + pr_info(KERN_INFO "\n"); + pr_info(KERN_INFO "=================================================\n"); + + if (dev < 0) { + pr_info("Please specify a valid mtd-device via module parameter\n"); + return -EINVAL; + } + + pr_info("MTD device: %d\n", dev); + + mtd = get_mtd_device(NULL, dev); + if (IS_ERR(mtd)) { + err = PTR_ERR(mtd); + pr_info("error: cannot get MTD device\n"); + return err; + } + + if (mtd->type != MTD_NANDFLASH) { + pr_info("this test requires NAND flash\n"); + goto out; + } + + tmp = mtd->size; + do_div(tmp, mtd->erasesize); + ebcnt = tmp; + pgcnt = mtd->erasesize / mtd->writesize; + pgsize = mtd->writesize; + subsize = mtd->writesize >> mtd->subpage_sft; + subcount = mtd->writesize / subsize; + subpgsize = mtd->writesize >> mtd->subpage_sft; + + pr_info("MTD device size %llu, eraseblock size %u, " + "page size %u, count of eraseblocks %u, pages per " + "eraseblock %u, OOB size %u\n", + (unsigned long long)mtd->size, mtd->erasesize, + mtd->writesize, ebcnt, pgcnt, mtd->oobsize); + + err = mtd_test_scan_bad_block(); + if (err) + goto out; + + err = mtd_test_readtest(); + if(err) { + pr_err("readtest failed!\n"); + goto out; + } + mdelay(100); + err = mtd_test_pagetest(); + if(err) { + pr_err("pagetest failed!\n"); + goto out; + } + mdelay(100); + err = mtd_test_subpagetest(); + if(err) { + pr_err("subpagetest failed!\n"); + goto out; + } + mdelay(100); + err = mtd_test_oobtest(); + if(err) { + pr_err("oobtest failed!\n"); + goto out; + } + mdelay(100); + err = mtd_test_speedtest(); + if(err) { + pr_err("speedtest failed!\n"); + goto out; + } + mdelay(100); + err = mtd_test_stresstest(); + if(err) { + pr_err("stresstest failed!\n"); + goto out; + } + +out: + pr_info(KERN_INFO "=================================================\n"); + if(bbt != NULL) + vfree(bbt); + put_mtd_device(mtd); + + return -1; +} + +static void __exit nandflash_stdtest_exit(void) +{ + return; +} + +module_init(nandflash_stdtest_init); +module_exit(nandflash_stdtest_exit); + +MODULE_DESCRIPTION("mtd_stdand_test"); +MODULE_AUTHOR("ming.tang@spreadtrum.com"); +MODULE_LICENSE("GPL"); diff --git a/drivers/mtd/tests/sprd_mtdtest/nandflash_stdtest/readme.txt b/drivers/mtd/tests/sprd_mtdtest/nandflash_stdtest/readme.txt new file mode 100755 index 00000000..bf67ac85 --- /dev/null +++ b/drivers/mtd/tests/sprd_mtdtest/nandflash_stdtest/readme.txt @@ -0,0 +1,9 @@ +stdtest——驱动标准测试 +本测试是将mtd开源社区提供的6个标准测试（read/page/subpage/oob/speed/stress）整合为一个标准测试。通过该测试，说明驱动程序已达到基本要求。 + +参数说明： +dev:用于指定测试使用的mtd分区，默认值为4 + +使用方法： +root后加载测试模块并传入参数，测试结果通过kernel log输出。 +cmd:insmod nandflash_stdtest.ko dev=4 \ No newline at end of file -- cgit v1.3.1