1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Copyright 2007-2008 Pierre Ossman
6 #include <linux/mmc/core.h>
7 #include <linux/mmc/card.h>
8 #include <linux/mmc/host.h>
9 #include <linux/mmc/mmc.h>
10 #include <linux/slab.h>
12 #include <linux/scatterlist.h>
13 #include <linux/swap.h> /* For nr_free_buffer_pages() */
14 #include <linux/list.h>
16 #include <linux/debugfs.h>
17 #include <linux/uaccess.h>
18 #include <linux/seq_file.h>
19 #include <linux/module.h>
29 #define RESULT_UNSUP_HOST 2
30 #define RESULT_UNSUP_CARD 3
32 #define BUFFER_ORDER 2
33 #define BUFFER_SIZE (PAGE_SIZE << BUFFER_ORDER)
35 #define TEST_ALIGN_END 8
38 * Limit the test area size to the maximum MMC HC erase group size. Note that
39 * the maximum SD allocation unit size is just 4MiB.
41 #define TEST_AREA_MAX_SIZE (128 * 1024 * 1024)
44 * struct mmc_test_pages - pages allocated by 'alloc_pages()'.
45 * @page: first page in the allocation
46 * @order: order of the number of pages allocated
48 struct mmc_test_pages {
54 * struct mmc_test_mem - allocated memory.
55 * @arr: array of allocations
56 * @cnt: number of allocations
59 struct mmc_test_pages *arr;
64 * struct mmc_test_area - information for performance tests.
65 * @max_sz: test area size (in bytes)
66 * @dev_addr: address on card at which to do performance tests
67 * @max_tfr: maximum transfer size allowed by driver (in bytes)
68 * @max_segs: maximum segments allowed by driver in scatterlist @sg
69 * @max_seg_sz: maximum segment size allowed by driver
70 * @blocks: number of (512 byte) blocks currently mapped by @sg
71 * @sg_len: length of currently mapped scatterlist @sg
72 * @mem: allocated memory
75 struct mmc_test_area {
77 unsigned int dev_addr;
79 unsigned int max_segs;
80 unsigned int max_seg_sz;
83 struct mmc_test_mem *mem;
84 struct scatterlist *sg;
88 * struct mmc_test_transfer_result - transfer results for performance tests.
89 * @link: double-linked list
90 * @count: amount of group of sectors to check
91 * @sectors: amount of sectors to check in one group
92 * @ts: time values of transfer
93 * @rate: calculated transfer rate
94 * @iops: I/O operations per second (times 100)
96 struct mmc_test_transfer_result {
97 struct list_head link;
100 struct timespec64 ts;
106 * struct mmc_test_general_result - results for tests.
107 * @link: double-linked list
108 * @card: card under test
109 * @testcase: number of test case
110 * @result: result of test run
111 * @tr_lst: transfer measurements if any as mmc_test_transfer_result
113 struct mmc_test_general_result {
114 struct list_head link;
115 struct mmc_card *card;
118 struct list_head tr_lst;
122 * struct mmc_test_dbgfs_file - debugfs related file.
123 * @link: double-linked list
124 * @card: card under test
125 * @file: file created under debugfs
127 struct mmc_test_dbgfs_file {
128 struct list_head link;
129 struct mmc_card *card;
134 * struct mmc_test_card - test information.
135 * @card: card under test
136 * @scratch: transfer buffer
137 * @buffer: transfer buffer
138 * @highmem: buffer for highmem tests
139 * @area: information for performance tests
140 * @gr: pointer to results of current testcase
142 struct mmc_test_card {
143 struct mmc_card *card;
145 u8 scratch[BUFFER_SIZE];
147 #ifdef CONFIG_HIGHMEM
148 struct page *highmem;
150 struct mmc_test_area area;
151 struct mmc_test_general_result *gr;
154 enum mmc_test_prep_media {
155 MMC_TEST_PREP_NONE = 0,
156 MMC_TEST_PREP_WRITE_FULL = 1 << 0,
157 MMC_TEST_PREP_ERASE = 1 << 1,
160 struct mmc_test_multiple_rw {
161 unsigned int *sg_len;
166 bool do_nonblock_req;
167 enum mmc_test_prep_media prepare;
170 /*******************************************************************/
171 /* General helper functions */
172 /*******************************************************************/
175 * Configure correct block size in card
177 static int mmc_test_set_blksize(struct mmc_test_card *test, unsigned size)
179 return mmc_set_blocklen(test->card, size);
182 static bool mmc_test_card_cmd23(struct mmc_card *card)
184 return mmc_card_mmc(card) ||
185 (mmc_card_sd(card) && card->scr.cmds & SD_SCR_CMD23_SUPPORT);
188 static void mmc_test_prepare_sbc(struct mmc_test_card *test,
189 struct mmc_request *mrq, unsigned int blocks)
191 struct mmc_card *card = test->card;
193 if (!mrq->sbc || !mmc_host_cmd23(card->host) ||
194 !mmc_test_card_cmd23(card) || !mmc_op_multi(mrq->cmd->opcode) ||
195 (card->quirks & MMC_QUIRK_BLK_NO_CMD23)) {
200 mrq->sbc->opcode = MMC_SET_BLOCK_COUNT;
201 mrq->sbc->arg = blocks;
202 mrq->sbc->flags = MMC_RSP_R1 | MMC_CMD_AC;
206 * Fill in the mmc_request structure given a set of transfer parameters.
208 static void mmc_test_prepare_mrq(struct mmc_test_card *test,
209 struct mmc_request *mrq, struct scatterlist *sg, unsigned sg_len,
210 unsigned dev_addr, unsigned blocks, unsigned blksz, int write)
212 if (WARN_ON(!mrq || !mrq->cmd || !mrq->data || !mrq->stop))
216 mrq->cmd->opcode = write ?
217 MMC_WRITE_MULTIPLE_BLOCK : MMC_READ_MULTIPLE_BLOCK;
219 mrq->cmd->opcode = write ?
220 MMC_WRITE_BLOCK : MMC_READ_SINGLE_BLOCK;
223 mrq->cmd->arg = dev_addr;
224 if (!mmc_card_blockaddr(test->card))
227 mrq->cmd->flags = MMC_RSP_R1 | MMC_CMD_ADTC;
232 mrq->stop->opcode = MMC_STOP_TRANSMISSION;
234 mrq->stop->flags = MMC_RSP_R1B | MMC_CMD_AC;
237 mrq->data->blksz = blksz;
238 mrq->data->blocks = blocks;
239 mrq->data->flags = write ? MMC_DATA_WRITE : MMC_DATA_READ;
241 mrq->data->sg_len = sg_len;
243 mmc_test_prepare_sbc(test, mrq, blocks);
245 mmc_set_data_timeout(mrq->data, test->card);
248 static int mmc_test_busy(struct mmc_command *cmd)
250 return !(cmd->resp[0] & R1_READY_FOR_DATA) ||
251 (R1_CURRENT_STATE(cmd->resp[0]) == R1_STATE_PRG);
255 * Wait for the card to finish the busy state
257 static int mmc_test_wait_busy(struct mmc_test_card *test)
260 struct mmc_command cmd = {};
264 memset(&cmd, 0, sizeof(struct mmc_command));
266 cmd.opcode = MMC_SEND_STATUS;
267 cmd.arg = test->card->rca << 16;
268 cmd.flags = MMC_RSP_R1 | MMC_CMD_AC;
270 ret = mmc_wait_for_cmd(test->card->host, &cmd, 0);
274 if (!busy && mmc_test_busy(&cmd)) {
276 if (test->card->host->caps & MMC_CAP_WAIT_WHILE_BUSY)
277 pr_info("%s: Warning: Host did not wait for busy state to end.\n",
278 mmc_hostname(test->card->host));
280 } while (mmc_test_busy(&cmd));
286 * Transfer a single sector of kernel addressable data
288 static int mmc_test_buffer_transfer(struct mmc_test_card *test,
289 u8 *buffer, unsigned addr, unsigned blksz, int write)
291 struct mmc_request mrq = {};
292 struct mmc_command cmd = {};
293 struct mmc_command stop = {};
294 struct mmc_data data = {};
296 struct scatterlist sg;
302 sg_init_one(&sg, buffer, blksz);
304 mmc_test_prepare_mrq(test, &mrq, &sg, 1, addr, 1, blksz, write);
306 mmc_wait_for_req(test->card->host, &mrq);
313 return mmc_test_wait_busy(test);
316 static void mmc_test_free_mem(struct mmc_test_mem *mem)
321 __free_pages(mem->arr[mem->cnt].page,
322 mem->arr[mem->cnt].order);
328 * Allocate a lot of memory, preferably max_sz but at least min_sz. In case
329 * there isn't much memory do not exceed 1/16th total lowmem pages. Also do
330 * not exceed a maximum number of segments and try not to make segments much
331 * bigger than maximum segment size.
333 static struct mmc_test_mem *mmc_test_alloc_mem(unsigned long min_sz,
334 unsigned long max_sz,
335 unsigned int max_segs,
336 unsigned int max_seg_sz)
338 unsigned long max_page_cnt = DIV_ROUND_UP(max_sz, PAGE_SIZE);
339 unsigned long min_page_cnt = DIV_ROUND_UP(min_sz, PAGE_SIZE);
340 unsigned long max_seg_page_cnt = DIV_ROUND_UP(max_seg_sz, PAGE_SIZE);
341 unsigned long page_cnt = 0;
342 unsigned long limit = nr_free_buffer_pages() >> 4;
343 struct mmc_test_mem *mem;
345 if (max_page_cnt > limit)
346 max_page_cnt = limit;
347 if (min_page_cnt > max_page_cnt)
348 min_page_cnt = max_page_cnt;
350 if (max_seg_page_cnt > max_page_cnt)
351 max_seg_page_cnt = max_page_cnt;
353 if (max_segs > max_page_cnt)
354 max_segs = max_page_cnt;
356 mem = kzalloc(sizeof(*mem), GFP_KERNEL);
360 mem->arr = kcalloc(max_segs, sizeof(*mem->arr), GFP_KERNEL);
364 while (max_page_cnt) {
367 gfp_t flags = GFP_KERNEL | GFP_DMA | __GFP_NOWARN |
370 order = get_order(max_seg_page_cnt << PAGE_SHIFT);
372 page = alloc_pages(flags, order);
378 if (page_cnt < min_page_cnt)
382 mem->arr[mem->cnt].page = page;
383 mem->arr[mem->cnt].order = order;
385 if (max_page_cnt <= (1UL << order))
387 max_page_cnt -= 1UL << order;
388 page_cnt += 1UL << order;
389 if (mem->cnt >= max_segs) {
390 if (page_cnt < min_page_cnt)
399 mmc_test_free_mem(mem);
404 * Map memory into a scatterlist. Optionally allow the same memory to be
405 * mapped more than once.
407 static int mmc_test_map_sg(struct mmc_test_mem *mem, unsigned long size,
408 struct scatterlist *sglist, int repeat,
409 unsigned int max_segs, unsigned int max_seg_sz,
410 unsigned int *sg_len, int min_sg_len)
412 struct scatterlist *sg = NULL;
414 unsigned long sz = size;
416 sg_init_table(sglist, max_segs);
417 if (min_sg_len > max_segs)
418 min_sg_len = max_segs;
422 for (i = 0; i < mem->cnt; i++) {
423 unsigned long len = PAGE_SIZE << mem->arr[i].order;
425 if (min_sg_len && (size / min_sg_len < len))
426 len = ALIGN(size / min_sg_len, 512);
429 if (len > max_seg_sz)
437 sg_set_page(sg, mem->arr[i].page, len, 0);
443 } while (sz && repeat);
455 * Map memory into a scatterlist so that no pages are contiguous. Allow the
456 * same memory to be mapped more than once.
458 static int mmc_test_map_sg_max_scatter(struct mmc_test_mem *mem,
460 struct scatterlist *sglist,
461 unsigned int max_segs,
462 unsigned int max_seg_sz,
463 unsigned int *sg_len)
465 struct scatterlist *sg = NULL;
466 unsigned int i = mem->cnt, cnt;
468 void *base, *addr, *last_addr = NULL;
470 sg_init_table(sglist, max_segs);
474 base = page_address(mem->arr[--i].page);
475 cnt = 1 << mem->arr[i].order;
477 addr = base + PAGE_SIZE * --cnt;
478 if (last_addr && last_addr + PAGE_SIZE == addr)
482 if (len > max_seg_sz)
492 sg_set_page(sg, virt_to_page(addr), len, 0);
507 * Calculate transfer rate in bytes per second.
509 static unsigned int mmc_test_rate(uint64_t bytes, struct timespec64 *ts)
513 ns = timespec64_to_ns(ts);
516 while (ns > UINT_MAX) {
524 do_div(bytes, (uint32_t)ns);
530 * Save transfer results for future usage
532 static void mmc_test_save_transfer_result(struct mmc_test_card *test,
533 unsigned int count, unsigned int sectors, struct timespec64 ts,
534 unsigned int rate, unsigned int iops)
536 struct mmc_test_transfer_result *tr;
541 tr = kmalloc(sizeof(*tr), GFP_KERNEL);
546 tr->sectors = sectors;
551 list_add_tail(&tr->link, &test->gr->tr_lst);
555 * Print the transfer rate.
557 static void mmc_test_print_rate(struct mmc_test_card *test, uint64_t bytes,
558 struct timespec64 *ts1, struct timespec64 *ts2)
560 unsigned int rate, iops, sectors = bytes >> 9;
561 struct timespec64 ts;
563 ts = timespec64_sub(*ts2, *ts1);
565 rate = mmc_test_rate(bytes, &ts);
566 iops = mmc_test_rate(100, &ts); /* I/O ops per sec x 100 */
568 pr_info("%s: Transfer of %u sectors (%u%s KiB) took %llu.%09u "
569 "seconds (%u kB/s, %u KiB/s, %u.%02u IOPS)\n",
570 mmc_hostname(test->card->host), sectors, sectors >> 1,
571 (sectors & 1 ? ".5" : ""), (u64)ts.tv_sec,
572 (u32)ts.tv_nsec, rate / 1000, rate / 1024,
573 iops / 100, iops % 100);
575 mmc_test_save_transfer_result(test, 1, sectors, ts, rate, iops);
579 * Print the average transfer rate.
581 static void mmc_test_print_avg_rate(struct mmc_test_card *test, uint64_t bytes,
582 unsigned int count, struct timespec64 *ts1,
583 struct timespec64 *ts2)
585 unsigned int rate, iops, sectors = bytes >> 9;
586 uint64_t tot = bytes * count;
587 struct timespec64 ts;
589 ts = timespec64_sub(*ts2, *ts1);
591 rate = mmc_test_rate(tot, &ts);
592 iops = mmc_test_rate(count * 100, &ts); /* I/O ops per sec x 100 */
594 pr_info("%s: Transfer of %u x %u sectors (%u x %u%s KiB) took "
595 "%llu.%09u seconds (%u kB/s, %u KiB/s, "
596 "%u.%02u IOPS, sg_len %d)\n",
597 mmc_hostname(test->card->host), count, sectors, count,
598 sectors >> 1, (sectors & 1 ? ".5" : ""),
599 (u64)ts.tv_sec, (u32)ts.tv_nsec,
600 rate / 1000, rate / 1024, iops / 100, iops % 100,
603 mmc_test_save_transfer_result(test, count, sectors, ts, rate, iops);
607 * Return the card size in sectors.
609 static unsigned int mmc_test_capacity(struct mmc_card *card)
611 if (!mmc_card_sd(card) && mmc_card_blockaddr(card))
612 return card->ext_csd.sectors;
614 return card->csd.capacity << (card->csd.read_blkbits - 9);
617 /*******************************************************************/
618 /* Test preparation and cleanup */
619 /*******************************************************************/
622 * Fill the first couple of sectors of the card with known data
623 * so that bad reads/writes can be detected
625 static int __mmc_test_prepare(struct mmc_test_card *test, int write)
629 ret = mmc_test_set_blksize(test, 512);
634 memset(test->buffer, 0xDF, 512);
636 for (i = 0; i < 512; i++)
640 for (i = 0; i < BUFFER_SIZE / 512; i++) {
641 ret = mmc_test_buffer_transfer(test, test->buffer, i, 512, 1);
649 static int mmc_test_prepare_write(struct mmc_test_card *test)
651 return __mmc_test_prepare(test, 1);
654 static int mmc_test_prepare_read(struct mmc_test_card *test)
656 return __mmc_test_prepare(test, 0);
659 static int mmc_test_cleanup(struct mmc_test_card *test)
663 ret = mmc_test_set_blksize(test, 512);
667 memset(test->buffer, 0, 512);
669 for (i = 0; i < BUFFER_SIZE / 512; i++) {
670 ret = mmc_test_buffer_transfer(test, test->buffer, i, 512, 1);
678 /*******************************************************************/
679 /* Test execution helpers */
680 /*******************************************************************/
683 * Modifies the mmc_request to perform the "short transfer" tests
685 static void mmc_test_prepare_broken_mrq(struct mmc_test_card *test,
686 struct mmc_request *mrq, int write)
688 if (WARN_ON(!mrq || !mrq->cmd || !mrq->data))
691 if (mrq->data->blocks > 1) {
692 mrq->cmd->opcode = write ?
693 MMC_WRITE_BLOCK : MMC_READ_SINGLE_BLOCK;
696 mrq->cmd->opcode = MMC_SEND_STATUS;
697 mrq->cmd->arg = test->card->rca << 16;
702 * Checks that a normal transfer didn't have any errors
704 static int mmc_test_check_result(struct mmc_test_card *test,
705 struct mmc_request *mrq)
709 if (WARN_ON(!mrq || !mrq->cmd || !mrq->data))
714 if (mrq->sbc && mrq->sbc->error)
715 ret = mrq->sbc->error;
716 if (!ret && mrq->cmd->error)
717 ret = mrq->cmd->error;
718 if (!ret && mrq->data->error)
719 ret = mrq->data->error;
720 if (!ret && mrq->stop && mrq->stop->error)
721 ret = mrq->stop->error;
722 if (!ret && mrq->data->bytes_xfered !=
723 mrq->data->blocks * mrq->data->blksz)
727 ret = RESULT_UNSUP_HOST;
733 * Checks that a "short transfer" behaved as expected
735 static int mmc_test_check_broken_result(struct mmc_test_card *test,
736 struct mmc_request *mrq)
740 if (WARN_ON(!mrq || !mrq->cmd || !mrq->data))
745 if (!ret && mrq->cmd->error)
746 ret = mrq->cmd->error;
747 if (!ret && mrq->data->error == 0)
749 if (!ret && mrq->data->error != -ETIMEDOUT)
750 ret = mrq->data->error;
751 if (!ret && mrq->stop && mrq->stop->error)
752 ret = mrq->stop->error;
753 if (mrq->data->blocks > 1) {
754 if (!ret && mrq->data->bytes_xfered > mrq->data->blksz)
757 if (!ret && mrq->data->bytes_xfered > 0)
762 ret = RESULT_UNSUP_HOST;
767 struct mmc_test_req {
768 struct mmc_request mrq;
769 struct mmc_command sbc;
770 struct mmc_command cmd;
771 struct mmc_command stop;
772 struct mmc_command status;
773 struct mmc_data data;
777 * Tests nonblock transfer with certain parameters
779 static void mmc_test_req_reset(struct mmc_test_req *rq)
781 memset(rq, 0, sizeof(struct mmc_test_req));
783 rq->mrq.cmd = &rq->cmd;
784 rq->mrq.data = &rq->data;
785 rq->mrq.stop = &rq->stop;
788 static struct mmc_test_req *mmc_test_req_alloc(void)
790 struct mmc_test_req *rq = kmalloc(sizeof(*rq), GFP_KERNEL);
793 mmc_test_req_reset(rq);
798 static void mmc_test_wait_done(struct mmc_request *mrq)
800 complete(&mrq->completion);
803 static int mmc_test_start_areq(struct mmc_test_card *test,
804 struct mmc_request *mrq,
805 struct mmc_request *prev_mrq)
807 struct mmc_host *host = test->card->host;
811 init_completion(&mrq->completion);
812 mrq->done = mmc_test_wait_done;
813 mmc_pre_req(host, mrq);
817 wait_for_completion(&prev_mrq->completion);
818 err = mmc_test_wait_busy(test);
820 err = mmc_test_check_result(test, prev_mrq);
824 err = mmc_start_request(host, mrq);
826 mmc_retune_release(host);
830 mmc_post_req(host, prev_mrq, 0);
833 mmc_post_req(host, mrq, err);
838 static int mmc_test_nonblock_transfer(struct mmc_test_card *test,
839 struct scatterlist *sg, unsigned sg_len,
840 unsigned dev_addr, unsigned blocks,
841 unsigned blksz, int write, int count)
843 struct mmc_test_req *rq1, *rq2;
844 struct mmc_request *mrq, *prev_mrq;
848 rq1 = mmc_test_req_alloc();
849 rq2 = mmc_test_req_alloc();
858 for (i = 0; i < count; i++) {
859 mmc_test_req_reset(container_of(mrq, struct mmc_test_req, mrq));
860 mmc_test_prepare_mrq(test, mrq, sg, sg_len, dev_addr, blocks,
862 ret = mmc_test_start_areq(test, mrq, prev_mrq);
867 prev_mrq = &rq2->mrq;
873 ret = mmc_test_start_areq(test, NULL, prev_mrq);
881 * Tests a basic transfer with certain parameters
883 static int mmc_test_simple_transfer(struct mmc_test_card *test,
884 struct scatterlist *sg, unsigned sg_len, unsigned dev_addr,
885 unsigned blocks, unsigned blksz, int write)
887 struct mmc_request mrq = {};
888 struct mmc_command cmd = {};
889 struct mmc_command stop = {};
890 struct mmc_data data = {};
896 mmc_test_prepare_mrq(test, &mrq, sg, sg_len, dev_addr,
897 blocks, blksz, write);
899 mmc_wait_for_req(test->card->host, &mrq);
901 mmc_test_wait_busy(test);
903 return mmc_test_check_result(test, &mrq);
907 * Tests a transfer where the card will fail completely or partly
909 static int mmc_test_broken_transfer(struct mmc_test_card *test,
910 unsigned blocks, unsigned blksz, int write)
912 struct mmc_request mrq = {};
913 struct mmc_command cmd = {};
914 struct mmc_command stop = {};
915 struct mmc_data data = {};
917 struct scatterlist sg;
923 sg_init_one(&sg, test->buffer, blocks * blksz);
925 mmc_test_prepare_mrq(test, &mrq, &sg, 1, 0, blocks, blksz, write);
926 mmc_test_prepare_broken_mrq(test, &mrq, write);
928 mmc_wait_for_req(test->card->host, &mrq);
930 mmc_test_wait_busy(test);
932 return mmc_test_check_broken_result(test, &mrq);
936 * Does a complete transfer test where data is also validated
938 * Note: mmc_test_prepare() must have been done before this call
940 static int mmc_test_transfer(struct mmc_test_card *test,
941 struct scatterlist *sg, unsigned sg_len, unsigned dev_addr,
942 unsigned blocks, unsigned blksz, int write)
948 for (i = 0; i < blocks * blksz; i++)
949 test->scratch[i] = i;
951 memset(test->scratch, 0, BUFFER_SIZE);
953 local_irq_save(flags);
954 sg_copy_from_buffer(sg, sg_len, test->scratch, BUFFER_SIZE);
955 local_irq_restore(flags);
957 ret = mmc_test_set_blksize(test, blksz);
961 ret = mmc_test_simple_transfer(test, sg, sg_len, dev_addr,
962 blocks, blksz, write);
969 ret = mmc_test_set_blksize(test, 512);
973 sectors = (blocks * blksz + 511) / 512;
974 if ((sectors * 512) == (blocks * blksz))
977 if ((sectors * 512) > BUFFER_SIZE)
980 memset(test->buffer, 0, sectors * 512);
982 for (i = 0; i < sectors; i++) {
983 ret = mmc_test_buffer_transfer(test,
984 test->buffer + i * 512,
985 dev_addr + i, 512, 0);
990 for (i = 0; i < blocks * blksz; i++) {
991 if (test->buffer[i] != (u8)i)
995 for (; i < sectors * 512; i++) {
996 if (test->buffer[i] != 0xDF)
1000 local_irq_save(flags);
1001 sg_copy_to_buffer(sg, sg_len, test->scratch, BUFFER_SIZE);
1002 local_irq_restore(flags);
1003 for (i = 0; i < blocks * blksz; i++) {
1004 if (test->scratch[i] != (u8)i)
1012 /*******************************************************************/
1014 /*******************************************************************/
1016 struct mmc_test_case {
1019 int (*prepare)(struct mmc_test_card *);
1020 int (*run)(struct mmc_test_card *);
1021 int (*cleanup)(struct mmc_test_card *);
1024 static int mmc_test_basic_write(struct mmc_test_card *test)
1027 struct scatterlist sg;
1029 ret = mmc_test_set_blksize(test, 512);
1033 sg_init_one(&sg, test->buffer, 512);
1035 return mmc_test_simple_transfer(test, &sg, 1, 0, 1, 512, 1);
1038 static int mmc_test_basic_read(struct mmc_test_card *test)
1041 struct scatterlist sg;
1043 ret = mmc_test_set_blksize(test, 512);
1047 sg_init_one(&sg, test->buffer, 512);
1049 return mmc_test_simple_transfer(test, &sg, 1, 0, 1, 512, 0);
1052 static int mmc_test_verify_write(struct mmc_test_card *test)
1054 struct scatterlist sg;
1056 sg_init_one(&sg, test->buffer, 512);
1058 return mmc_test_transfer(test, &sg, 1, 0, 1, 512, 1);
1061 static int mmc_test_verify_read(struct mmc_test_card *test)
1063 struct scatterlist sg;
1065 sg_init_one(&sg, test->buffer, 512);
1067 return mmc_test_transfer(test, &sg, 1, 0, 1, 512, 0);
1070 static int mmc_test_multi_write(struct mmc_test_card *test)
1073 struct scatterlist sg;
1075 if (test->card->host->max_blk_count == 1)
1076 return RESULT_UNSUP_HOST;
1078 size = PAGE_SIZE * 2;
1079 size = min(size, test->card->host->max_req_size);
1080 size = min(size, test->card->host->max_seg_size);
1081 size = min(size, test->card->host->max_blk_count * 512);
1084 return RESULT_UNSUP_HOST;
1086 sg_init_one(&sg, test->buffer, size);
1088 return mmc_test_transfer(test, &sg, 1, 0, size / 512, 512, 1);
1091 static int mmc_test_multi_read(struct mmc_test_card *test)
1094 struct scatterlist sg;
1096 if (test->card->host->max_blk_count == 1)
1097 return RESULT_UNSUP_HOST;
1099 size = PAGE_SIZE * 2;
1100 size = min(size, test->card->host->max_req_size);
1101 size = min(size, test->card->host->max_seg_size);
1102 size = min(size, test->card->host->max_blk_count * 512);
1105 return RESULT_UNSUP_HOST;
1107 sg_init_one(&sg, test->buffer, size);
1109 return mmc_test_transfer(test, &sg, 1, 0, size / 512, 512, 0);
1112 static int mmc_test_pow2_write(struct mmc_test_card *test)
1115 struct scatterlist sg;
1117 if (!test->card->csd.write_partial)
1118 return RESULT_UNSUP_CARD;
1120 for (i = 1; i < 512; i <<= 1) {
1121 sg_init_one(&sg, test->buffer, i);
1122 ret = mmc_test_transfer(test, &sg, 1, 0, 1, i, 1);
1130 static int mmc_test_pow2_read(struct mmc_test_card *test)
1133 struct scatterlist sg;
1135 if (!test->card->csd.read_partial)
1136 return RESULT_UNSUP_CARD;
1138 for (i = 1; i < 512; i <<= 1) {
1139 sg_init_one(&sg, test->buffer, i);
1140 ret = mmc_test_transfer(test, &sg, 1, 0, 1, i, 0);
1148 static int mmc_test_weird_write(struct mmc_test_card *test)
1151 struct scatterlist sg;
1153 if (!test->card->csd.write_partial)
1154 return RESULT_UNSUP_CARD;
1156 for (i = 3; i < 512; i += 7) {
1157 sg_init_one(&sg, test->buffer, i);
1158 ret = mmc_test_transfer(test, &sg, 1, 0, 1, i, 1);
1166 static int mmc_test_weird_read(struct mmc_test_card *test)
1169 struct scatterlist sg;
1171 if (!test->card->csd.read_partial)
1172 return RESULT_UNSUP_CARD;
1174 for (i = 3; i < 512; i += 7) {
1175 sg_init_one(&sg, test->buffer, i);
1176 ret = mmc_test_transfer(test, &sg, 1, 0, 1, i, 0);
1184 static int mmc_test_align_write(struct mmc_test_card *test)
1187 struct scatterlist sg;
1189 for (i = 1; i < TEST_ALIGN_END; i++) {
1190 sg_init_one(&sg, test->buffer + i, 512);
1191 ret = mmc_test_transfer(test, &sg, 1, 0, 1, 512, 1);
1199 static int mmc_test_align_read(struct mmc_test_card *test)
1202 struct scatterlist sg;
1204 for (i = 1; i < TEST_ALIGN_END; i++) {
1205 sg_init_one(&sg, test->buffer + i, 512);
1206 ret = mmc_test_transfer(test, &sg, 1, 0, 1, 512, 0);
1214 static int mmc_test_align_multi_write(struct mmc_test_card *test)
1218 struct scatterlist sg;
1220 if (test->card->host->max_blk_count == 1)
1221 return RESULT_UNSUP_HOST;
1223 size = PAGE_SIZE * 2;
1224 size = min(size, test->card->host->max_req_size);
1225 size = min(size, test->card->host->max_seg_size);
1226 size = min(size, test->card->host->max_blk_count * 512);
1229 return RESULT_UNSUP_HOST;
1231 for (i = 1; i < TEST_ALIGN_END; i++) {
1232 sg_init_one(&sg, test->buffer + i, size);
1233 ret = mmc_test_transfer(test, &sg, 1, 0, size / 512, 512, 1);
1241 static int mmc_test_align_multi_read(struct mmc_test_card *test)
1245 struct scatterlist sg;
1247 if (test->card->host->max_blk_count == 1)
1248 return RESULT_UNSUP_HOST;
1250 size = PAGE_SIZE * 2;
1251 size = min(size, test->card->host->max_req_size);
1252 size = min(size, test->card->host->max_seg_size);
1253 size = min(size, test->card->host->max_blk_count * 512);
1256 return RESULT_UNSUP_HOST;
1258 for (i = 1; i < TEST_ALIGN_END; i++) {
1259 sg_init_one(&sg, test->buffer + i, size);
1260 ret = mmc_test_transfer(test, &sg, 1, 0, size / 512, 512, 0);
1268 static int mmc_test_xfersize_write(struct mmc_test_card *test)
1272 ret = mmc_test_set_blksize(test, 512);
1276 return mmc_test_broken_transfer(test, 1, 512, 1);
1279 static int mmc_test_xfersize_read(struct mmc_test_card *test)
1283 ret = mmc_test_set_blksize(test, 512);
1287 return mmc_test_broken_transfer(test, 1, 512, 0);
1290 static int mmc_test_multi_xfersize_write(struct mmc_test_card *test)
1294 if (test->card->host->max_blk_count == 1)
1295 return RESULT_UNSUP_HOST;
1297 ret = mmc_test_set_blksize(test, 512);
1301 return mmc_test_broken_transfer(test, 2, 512, 1);
1304 static int mmc_test_multi_xfersize_read(struct mmc_test_card *test)
1308 if (test->card->host->max_blk_count == 1)
1309 return RESULT_UNSUP_HOST;
1311 ret = mmc_test_set_blksize(test, 512);
1315 return mmc_test_broken_transfer(test, 2, 512, 0);
1318 #ifdef CONFIG_HIGHMEM
1320 static int mmc_test_write_high(struct mmc_test_card *test)
1322 struct scatterlist sg;
1324 sg_init_table(&sg, 1);
1325 sg_set_page(&sg, test->highmem, 512, 0);
1327 return mmc_test_transfer(test, &sg, 1, 0, 1, 512, 1);
1330 static int mmc_test_read_high(struct mmc_test_card *test)
1332 struct scatterlist sg;
1334 sg_init_table(&sg, 1);
1335 sg_set_page(&sg, test->highmem, 512, 0);
1337 return mmc_test_transfer(test, &sg, 1, 0, 1, 512, 0);
1340 static int mmc_test_multi_write_high(struct mmc_test_card *test)
1343 struct scatterlist sg;
1345 if (test->card->host->max_blk_count == 1)
1346 return RESULT_UNSUP_HOST;
1348 size = PAGE_SIZE * 2;
1349 size = min(size, test->card->host->max_req_size);
1350 size = min(size, test->card->host->max_seg_size);
1351 size = min(size, test->card->host->max_blk_count * 512);
1354 return RESULT_UNSUP_HOST;
1356 sg_init_table(&sg, 1);
1357 sg_set_page(&sg, test->highmem, size, 0);
1359 return mmc_test_transfer(test, &sg, 1, 0, size / 512, 512, 1);
1362 static int mmc_test_multi_read_high(struct mmc_test_card *test)
1365 struct scatterlist sg;
1367 if (test->card->host->max_blk_count == 1)
1368 return RESULT_UNSUP_HOST;
1370 size = PAGE_SIZE * 2;
1371 size = min(size, test->card->host->max_req_size);
1372 size = min(size, test->card->host->max_seg_size);
1373 size = min(size, test->card->host->max_blk_count * 512);
1376 return RESULT_UNSUP_HOST;
1378 sg_init_table(&sg, 1);
1379 sg_set_page(&sg, test->highmem, size, 0);
1381 return mmc_test_transfer(test, &sg, 1, 0, size / 512, 512, 0);
1386 static int mmc_test_no_highmem(struct mmc_test_card *test)
1388 pr_info("%s: Highmem not configured - test skipped\n",
1389 mmc_hostname(test->card->host));
1393 #endif /* CONFIG_HIGHMEM */
1396 * Map sz bytes so that it can be transferred.
1398 static int mmc_test_area_map(struct mmc_test_card *test, unsigned long sz,
1399 int max_scatter, int min_sg_len)
1401 struct mmc_test_area *t = &test->area;
1404 t->blocks = sz >> 9;
1407 err = mmc_test_map_sg_max_scatter(t->mem, sz, t->sg,
1408 t->max_segs, t->max_seg_sz,
1411 err = mmc_test_map_sg(t->mem, sz, t->sg, 1, t->max_segs,
1412 t->max_seg_sz, &t->sg_len, min_sg_len);
1415 pr_info("%s: Failed to map sg list\n",
1416 mmc_hostname(test->card->host));
1421 * Transfer bytes mapped by mmc_test_area_map().
1423 static int mmc_test_area_transfer(struct mmc_test_card *test,
1424 unsigned int dev_addr, int write)
1426 struct mmc_test_area *t = &test->area;
1428 return mmc_test_simple_transfer(test, t->sg, t->sg_len, dev_addr,
1429 t->blocks, 512, write);
1433 * Map and transfer bytes for multiple transfers.
1435 static int mmc_test_area_io_seq(struct mmc_test_card *test, unsigned long sz,
1436 unsigned int dev_addr, int write,
1437 int max_scatter, int timed, int count,
1438 bool nonblock, int min_sg_len)
1440 struct timespec64 ts1, ts2;
1443 struct mmc_test_area *t = &test->area;
1446 * In the case of a maximally scattered transfer, the maximum transfer
1447 * size is further limited by using PAGE_SIZE segments.
1450 struct mmc_test_area *t = &test->area;
1451 unsigned long max_tfr;
1453 if (t->max_seg_sz >= PAGE_SIZE)
1454 max_tfr = t->max_segs * PAGE_SIZE;
1456 max_tfr = t->max_segs * t->max_seg_sz;
1461 ret = mmc_test_area_map(test, sz, max_scatter, min_sg_len);
1466 ktime_get_ts64(&ts1);
1468 ret = mmc_test_nonblock_transfer(test, t->sg, t->sg_len,
1469 dev_addr, t->blocks, 512, write, count);
1471 for (i = 0; i < count && ret == 0; i++) {
1472 ret = mmc_test_area_transfer(test, dev_addr, write);
1473 dev_addr += sz >> 9;
1480 ktime_get_ts64(&ts2);
1483 mmc_test_print_avg_rate(test, sz, count, &ts1, &ts2);
1488 static int mmc_test_area_io(struct mmc_test_card *test, unsigned long sz,
1489 unsigned int dev_addr, int write, int max_scatter,
1492 return mmc_test_area_io_seq(test, sz, dev_addr, write, max_scatter,
1493 timed, 1, false, 0);
1497 * Write the test area entirely.
1499 static int mmc_test_area_fill(struct mmc_test_card *test)
1501 struct mmc_test_area *t = &test->area;
1503 return mmc_test_area_io(test, t->max_tfr, t->dev_addr, 1, 0, 0);
1507 * Erase the test area entirely.
1509 static int mmc_test_area_erase(struct mmc_test_card *test)
1511 struct mmc_test_area *t = &test->area;
1513 if (!mmc_can_erase(test->card))
1516 return mmc_erase(test->card, t->dev_addr, t->max_sz >> 9,
1521 * Cleanup struct mmc_test_area.
1523 static int mmc_test_area_cleanup(struct mmc_test_card *test)
1525 struct mmc_test_area *t = &test->area;
1528 mmc_test_free_mem(t->mem);
1534 * Initialize an area for testing large transfers. The test area is set to the
1535 * middle of the card because cards may have different characteristics at the
1536 * front (for FAT file system optimization). Optionally, the area is erased
1537 * (if the card supports it) which may improve write performance. Optionally,
1538 * the area is filled with data for subsequent read tests.
1540 static int mmc_test_area_init(struct mmc_test_card *test, int erase, int fill)
1542 struct mmc_test_area *t = &test->area;
1543 unsigned long min_sz = 64 * 1024, sz;
1546 ret = mmc_test_set_blksize(test, 512);
1550 /* Make the test area size about 4MiB */
1551 sz = (unsigned long)test->card->pref_erase << 9;
1553 while (t->max_sz < 4 * 1024 * 1024)
1555 while (t->max_sz > TEST_AREA_MAX_SIZE && t->max_sz > sz)
1558 t->max_segs = test->card->host->max_segs;
1559 t->max_seg_sz = test->card->host->max_seg_size;
1560 t->max_seg_sz -= t->max_seg_sz % 512;
1562 t->max_tfr = t->max_sz;
1563 if (t->max_tfr >> 9 > test->card->host->max_blk_count)
1564 t->max_tfr = test->card->host->max_blk_count << 9;
1565 if (t->max_tfr > test->card->host->max_req_size)
1566 t->max_tfr = test->card->host->max_req_size;
1567 if (t->max_tfr / t->max_seg_sz > t->max_segs)
1568 t->max_tfr = t->max_segs * t->max_seg_sz;
1571 * Try to allocate enough memory for a max. sized transfer. Less is OK
1572 * because the same memory can be mapped into the scatterlist more than
1573 * once. Also, take into account the limits imposed on scatterlist
1574 * segments by the host driver.
1576 t->mem = mmc_test_alloc_mem(min_sz, t->max_tfr, t->max_segs,
1581 t->sg = kmalloc_array(t->max_segs, sizeof(*t->sg), GFP_KERNEL);
1587 t->dev_addr = mmc_test_capacity(test->card) / 2;
1588 t->dev_addr -= t->dev_addr % (t->max_sz >> 9);
1591 ret = mmc_test_area_erase(test);
1597 ret = mmc_test_area_fill(test);
1605 mmc_test_area_cleanup(test);
1610 * Prepare for large transfers. Do not erase the test area.
1612 static int mmc_test_area_prepare(struct mmc_test_card *test)
1614 return mmc_test_area_init(test, 0, 0);
1618 * Prepare for large transfers. Do erase the test area.
1620 static int mmc_test_area_prepare_erase(struct mmc_test_card *test)
1622 return mmc_test_area_init(test, 1, 0);
1626 * Prepare for large transfers. Erase and fill the test area.
1628 static int mmc_test_area_prepare_fill(struct mmc_test_card *test)
1630 return mmc_test_area_init(test, 1, 1);
1634 * Test best-case performance. Best-case performance is expected from
1635 * a single large transfer.
1637 * An additional option (max_scatter) allows the measurement of the same
1638 * transfer but with no contiguous pages in the scatter list. This tests
1639 * the efficiency of DMA to handle scattered pages.
1641 static int mmc_test_best_performance(struct mmc_test_card *test, int write,
1644 struct mmc_test_area *t = &test->area;
1646 return mmc_test_area_io(test, t->max_tfr, t->dev_addr, write,
1651 * Best-case read performance.
1653 static int mmc_test_best_read_performance(struct mmc_test_card *test)
1655 return mmc_test_best_performance(test, 0, 0);
1659 * Best-case write performance.
1661 static int mmc_test_best_write_performance(struct mmc_test_card *test)
1663 return mmc_test_best_performance(test, 1, 0);
1667 * Best-case read performance into scattered pages.
1669 static int mmc_test_best_read_perf_max_scatter(struct mmc_test_card *test)
1671 return mmc_test_best_performance(test, 0, 1);
1675 * Best-case write performance from scattered pages.
1677 static int mmc_test_best_write_perf_max_scatter(struct mmc_test_card *test)
1679 return mmc_test_best_performance(test, 1, 1);
1683 * Single read performance by transfer size.
1685 static int mmc_test_profile_read_perf(struct mmc_test_card *test)
1687 struct mmc_test_area *t = &test->area;
1689 unsigned int dev_addr;
1692 for (sz = 512; sz < t->max_tfr; sz <<= 1) {
1693 dev_addr = t->dev_addr + (sz >> 9);
1694 ret = mmc_test_area_io(test, sz, dev_addr, 0, 0, 1);
1699 dev_addr = t->dev_addr;
1700 return mmc_test_area_io(test, sz, dev_addr, 0, 0, 1);
1704 * Single write performance by transfer size.
1706 static int mmc_test_profile_write_perf(struct mmc_test_card *test)
1708 struct mmc_test_area *t = &test->area;
1710 unsigned int dev_addr;
1713 ret = mmc_test_area_erase(test);
1716 for (sz = 512; sz < t->max_tfr; sz <<= 1) {
1717 dev_addr = t->dev_addr + (sz >> 9);
1718 ret = mmc_test_area_io(test, sz, dev_addr, 1, 0, 1);
1722 ret = mmc_test_area_erase(test);
1726 dev_addr = t->dev_addr;
1727 return mmc_test_area_io(test, sz, dev_addr, 1, 0, 1);
1731 * Single trim performance by transfer size.
1733 static int mmc_test_profile_trim_perf(struct mmc_test_card *test)
1735 struct mmc_test_area *t = &test->area;
1737 unsigned int dev_addr;
1738 struct timespec64 ts1, ts2;
1741 if (!mmc_can_trim(test->card))
1742 return RESULT_UNSUP_CARD;
1744 if (!mmc_can_erase(test->card))
1745 return RESULT_UNSUP_HOST;
1747 for (sz = 512; sz < t->max_sz; sz <<= 1) {
1748 dev_addr = t->dev_addr + (sz >> 9);
1749 ktime_get_ts64(&ts1);
1750 ret = mmc_erase(test->card, dev_addr, sz >> 9, MMC_TRIM_ARG);
1753 ktime_get_ts64(&ts2);
1754 mmc_test_print_rate(test, sz, &ts1, &ts2);
1756 dev_addr = t->dev_addr;
1757 ktime_get_ts64(&ts1);
1758 ret = mmc_erase(test->card, dev_addr, sz >> 9, MMC_TRIM_ARG);
1761 ktime_get_ts64(&ts2);
1762 mmc_test_print_rate(test, sz, &ts1, &ts2);
1766 static int mmc_test_seq_read_perf(struct mmc_test_card *test, unsigned long sz)
1768 struct mmc_test_area *t = &test->area;
1769 unsigned int dev_addr, i, cnt;
1770 struct timespec64 ts1, ts2;
1773 cnt = t->max_sz / sz;
1774 dev_addr = t->dev_addr;
1775 ktime_get_ts64(&ts1);
1776 for (i = 0; i < cnt; i++) {
1777 ret = mmc_test_area_io(test, sz, dev_addr, 0, 0, 0);
1780 dev_addr += (sz >> 9);
1782 ktime_get_ts64(&ts2);
1783 mmc_test_print_avg_rate(test, sz, cnt, &ts1, &ts2);
1788 * Consecutive read performance by transfer size.
1790 static int mmc_test_profile_seq_read_perf(struct mmc_test_card *test)
1792 struct mmc_test_area *t = &test->area;
1796 for (sz = 512; sz < t->max_tfr; sz <<= 1) {
1797 ret = mmc_test_seq_read_perf(test, sz);
1802 return mmc_test_seq_read_perf(test, sz);
1805 static int mmc_test_seq_write_perf(struct mmc_test_card *test, unsigned long sz)
1807 struct mmc_test_area *t = &test->area;
1808 unsigned int dev_addr, i, cnt;
1809 struct timespec64 ts1, ts2;
1812 ret = mmc_test_area_erase(test);
1815 cnt = t->max_sz / sz;
1816 dev_addr = t->dev_addr;
1817 ktime_get_ts64(&ts1);
1818 for (i = 0; i < cnt; i++) {
1819 ret = mmc_test_area_io(test, sz, dev_addr, 1, 0, 0);
1822 dev_addr += (sz >> 9);
1824 ktime_get_ts64(&ts2);
1825 mmc_test_print_avg_rate(test, sz, cnt, &ts1, &ts2);
1830 * Consecutive write performance by transfer size.
1832 static int mmc_test_profile_seq_write_perf(struct mmc_test_card *test)
1834 struct mmc_test_area *t = &test->area;
1838 for (sz = 512; sz < t->max_tfr; sz <<= 1) {
1839 ret = mmc_test_seq_write_perf(test, sz);
1844 return mmc_test_seq_write_perf(test, sz);
1848 * Consecutive trim performance by transfer size.
1850 static int mmc_test_profile_seq_trim_perf(struct mmc_test_card *test)
1852 struct mmc_test_area *t = &test->area;
1854 unsigned int dev_addr, i, cnt;
1855 struct timespec64 ts1, ts2;
1858 if (!mmc_can_trim(test->card))
1859 return RESULT_UNSUP_CARD;
1861 if (!mmc_can_erase(test->card))
1862 return RESULT_UNSUP_HOST;
1864 for (sz = 512; sz <= t->max_sz; sz <<= 1) {
1865 ret = mmc_test_area_erase(test);
1868 ret = mmc_test_area_fill(test);
1871 cnt = t->max_sz / sz;
1872 dev_addr = t->dev_addr;
1873 ktime_get_ts64(&ts1);
1874 for (i = 0; i < cnt; i++) {
1875 ret = mmc_erase(test->card, dev_addr, sz >> 9,
1879 dev_addr += (sz >> 9);
1881 ktime_get_ts64(&ts2);
1882 mmc_test_print_avg_rate(test, sz, cnt, &ts1, &ts2);
1887 static unsigned int rnd_next = 1;
1889 static unsigned int mmc_test_rnd_num(unsigned int rnd_cnt)
1893 rnd_next = rnd_next * 1103515245 + 12345;
1894 r = (rnd_next >> 16) & 0x7fff;
1895 return (r * rnd_cnt) >> 15;
1898 static int mmc_test_rnd_perf(struct mmc_test_card *test, int write, int print,
1901 unsigned int dev_addr, cnt, rnd_addr, range1, range2, last_ea = 0, ea;
1903 struct timespec64 ts1, ts2, ts;
1908 rnd_addr = mmc_test_capacity(test->card) / 4;
1909 range1 = rnd_addr / test->card->pref_erase;
1910 range2 = range1 / ssz;
1912 ktime_get_ts64(&ts1);
1913 for (cnt = 0; cnt < UINT_MAX; cnt++) {
1914 ktime_get_ts64(&ts2);
1915 ts = timespec64_sub(ts2, ts1);
1916 if (ts.tv_sec >= 10)
1918 ea = mmc_test_rnd_num(range1);
1922 dev_addr = rnd_addr + test->card->pref_erase * ea +
1923 ssz * mmc_test_rnd_num(range2);
1924 ret = mmc_test_area_io(test, sz, dev_addr, write, 0, 0);
1929 mmc_test_print_avg_rate(test, sz, cnt, &ts1, &ts2);
1933 static int mmc_test_random_perf(struct mmc_test_card *test, int write)
1935 struct mmc_test_area *t = &test->area;
1940 for (sz = 512; sz < t->max_tfr; sz <<= 1) {
1942 * When writing, try to get more consistent results by running
1943 * the test twice with exactly the same I/O but outputting the
1944 * results only for the 2nd run.
1948 ret = mmc_test_rnd_perf(test, write, 0, sz);
1953 ret = mmc_test_rnd_perf(test, write, 1, sz);
1960 ret = mmc_test_rnd_perf(test, write, 0, sz);
1965 return mmc_test_rnd_perf(test, write, 1, sz);
1969 * Random read performance by transfer size.
1971 static int mmc_test_random_read_perf(struct mmc_test_card *test)
1973 return mmc_test_random_perf(test, 0);
1977 * Random write performance by transfer size.
1979 static int mmc_test_random_write_perf(struct mmc_test_card *test)
1981 return mmc_test_random_perf(test, 1);
1984 static int mmc_test_seq_perf(struct mmc_test_card *test, int write,
1985 unsigned int tot_sz, int max_scatter)
1987 struct mmc_test_area *t = &test->area;
1988 unsigned int dev_addr, i, cnt, sz, ssz;
1989 struct timespec64 ts1, ts2;
1995 * In the case of a maximally scattered transfer, the maximum transfer
1996 * size is further limited by using PAGE_SIZE segments.
1999 unsigned long max_tfr;
2001 if (t->max_seg_sz >= PAGE_SIZE)
2002 max_tfr = t->max_segs * PAGE_SIZE;
2004 max_tfr = t->max_segs * t->max_seg_sz;
2010 dev_addr = mmc_test_capacity(test->card) / 4;
2011 if (tot_sz > dev_addr << 9)
2012 tot_sz = dev_addr << 9;
2014 dev_addr &= 0xffff0000; /* Round to 64MiB boundary */
2016 ktime_get_ts64(&ts1);
2017 for (i = 0; i < cnt; i++) {
2018 ret = mmc_test_area_io(test, sz, dev_addr, write,
2024 ktime_get_ts64(&ts2);
2026 mmc_test_print_avg_rate(test, sz, cnt, &ts1, &ts2);
2031 static int mmc_test_large_seq_perf(struct mmc_test_card *test, int write)
2035 for (i = 0; i < 10; i++) {
2036 ret = mmc_test_seq_perf(test, write, 10 * 1024 * 1024, 1);
2040 for (i = 0; i < 5; i++) {
2041 ret = mmc_test_seq_perf(test, write, 100 * 1024 * 1024, 1);
2045 for (i = 0; i < 3; i++) {
2046 ret = mmc_test_seq_perf(test, write, 1000 * 1024 * 1024, 1);
2055 * Large sequential read performance.
2057 static int mmc_test_large_seq_read_perf(struct mmc_test_card *test)
2059 return mmc_test_large_seq_perf(test, 0);
2063 * Large sequential write performance.
2065 static int mmc_test_large_seq_write_perf(struct mmc_test_card *test)
2067 return mmc_test_large_seq_perf(test, 1);
2070 static int mmc_test_rw_multiple(struct mmc_test_card *test,
2071 struct mmc_test_multiple_rw *tdata,
2072 unsigned int reqsize, unsigned int size,
2075 unsigned int dev_addr;
2076 struct mmc_test_area *t = &test->area;
2079 /* Set up test area */
2080 if (size > mmc_test_capacity(test->card) / 2 * 512)
2081 size = mmc_test_capacity(test->card) / 2 * 512;
2082 if (reqsize > t->max_tfr)
2083 reqsize = t->max_tfr;
2084 dev_addr = mmc_test_capacity(test->card) / 4;
2085 if ((dev_addr & 0xffff0000))
2086 dev_addr &= 0xffff0000; /* Round to 64MiB boundary */
2088 dev_addr &= 0xfffff800; /* Round to 1MiB boundary */
2095 /* prepare test area */
2096 if (mmc_can_erase(test->card) &&
2097 tdata->prepare & MMC_TEST_PREP_ERASE) {
2098 ret = mmc_erase(test->card, dev_addr,
2099 size / 512, MMC_SECURE_ERASE_ARG);
2101 ret = mmc_erase(test->card, dev_addr,
2102 size / 512, MMC_ERASE_ARG);
2108 ret = mmc_test_area_io_seq(test, reqsize, dev_addr,
2109 tdata->do_write, 0, 1, size / reqsize,
2110 tdata->do_nonblock_req, min_sg_len);
2116 pr_info("[%s] error\n", __func__);
2120 static int mmc_test_rw_multiple_size(struct mmc_test_card *test,
2121 struct mmc_test_multiple_rw *rw)
2125 void *pre_req = test->card->host->ops->pre_req;
2126 void *post_req = test->card->host->ops->post_req;
2128 if (rw->do_nonblock_req &&
2129 ((!pre_req && post_req) || (pre_req && !post_req))) {
2130 pr_info("error: only one of pre/post is defined\n");
2134 for (i = 0 ; i < rw->len && ret == 0; i++) {
2135 ret = mmc_test_rw_multiple(test, rw, rw->bs[i], rw->size, 0);
2142 static int mmc_test_rw_multiple_sg_len(struct mmc_test_card *test,
2143 struct mmc_test_multiple_rw *rw)
2148 for (i = 0 ; i < rw->len && ret == 0; i++) {
2149 ret = mmc_test_rw_multiple(test, rw, 512 * 1024, rw->size,
2158 * Multiple blocking write 4k to 4 MB chunks
2160 static int mmc_test_profile_mult_write_blocking_perf(struct mmc_test_card *test)
2162 unsigned int bs[] = {1 << 12, 1 << 13, 1 << 14, 1 << 15, 1 << 16,
2163 1 << 17, 1 << 18, 1 << 19, 1 << 20, 1 << 22};
2164 struct mmc_test_multiple_rw test_data = {
2166 .size = TEST_AREA_MAX_SIZE,
2167 .len = ARRAY_SIZE(bs),
2169 .do_nonblock_req = false,
2170 .prepare = MMC_TEST_PREP_ERASE,
2173 return mmc_test_rw_multiple_size(test, &test_data);
2177 * Multiple non-blocking write 4k to 4 MB chunks
2179 static int mmc_test_profile_mult_write_nonblock_perf(struct mmc_test_card *test)
2181 unsigned int bs[] = {1 << 12, 1 << 13, 1 << 14, 1 << 15, 1 << 16,
2182 1 << 17, 1 << 18, 1 << 19, 1 << 20, 1 << 22};
2183 struct mmc_test_multiple_rw test_data = {
2185 .size = TEST_AREA_MAX_SIZE,
2186 .len = ARRAY_SIZE(bs),
2188 .do_nonblock_req = true,
2189 .prepare = MMC_TEST_PREP_ERASE,
2192 return mmc_test_rw_multiple_size(test, &test_data);
2196 * Multiple blocking read 4k to 4 MB chunks
2198 static int mmc_test_profile_mult_read_blocking_perf(struct mmc_test_card *test)
2200 unsigned int bs[] = {1 << 12, 1 << 13, 1 << 14, 1 << 15, 1 << 16,
2201 1 << 17, 1 << 18, 1 << 19, 1 << 20, 1 << 22};
2202 struct mmc_test_multiple_rw test_data = {
2204 .size = TEST_AREA_MAX_SIZE,
2205 .len = ARRAY_SIZE(bs),
2207 .do_nonblock_req = false,
2208 .prepare = MMC_TEST_PREP_NONE,
2211 return mmc_test_rw_multiple_size(test, &test_data);
2215 * Multiple non-blocking read 4k to 4 MB chunks
2217 static int mmc_test_profile_mult_read_nonblock_perf(struct mmc_test_card *test)
2219 unsigned int bs[] = {1 << 12, 1 << 13, 1 << 14, 1 << 15, 1 << 16,
2220 1 << 17, 1 << 18, 1 << 19, 1 << 20, 1 << 22};
2221 struct mmc_test_multiple_rw test_data = {
2223 .size = TEST_AREA_MAX_SIZE,
2224 .len = ARRAY_SIZE(bs),
2226 .do_nonblock_req = true,
2227 .prepare = MMC_TEST_PREP_NONE,
2230 return mmc_test_rw_multiple_size(test, &test_data);
2234 * Multiple blocking write 1 to 512 sg elements
2236 static int mmc_test_profile_sglen_wr_blocking_perf(struct mmc_test_card *test)
2238 unsigned int sg_len[] = {1, 1 << 3, 1 << 4, 1 << 5, 1 << 6,
2239 1 << 7, 1 << 8, 1 << 9};
2240 struct mmc_test_multiple_rw test_data = {
2242 .size = TEST_AREA_MAX_SIZE,
2243 .len = ARRAY_SIZE(sg_len),
2245 .do_nonblock_req = false,
2246 .prepare = MMC_TEST_PREP_ERASE,
2249 return mmc_test_rw_multiple_sg_len(test, &test_data);
2253 * Multiple non-blocking write 1 to 512 sg elements
2255 static int mmc_test_profile_sglen_wr_nonblock_perf(struct mmc_test_card *test)
2257 unsigned int sg_len[] = {1, 1 << 3, 1 << 4, 1 << 5, 1 << 6,
2258 1 << 7, 1 << 8, 1 << 9};
2259 struct mmc_test_multiple_rw test_data = {
2261 .size = TEST_AREA_MAX_SIZE,
2262 .len = ARRAY_SIZE(sg_len),
2264 .do_nonblock_req = true,
2265 .prepare = MMC_TEST_PREP_ERASE,
2268 return mmc_test_rw_multiple_sg_len(test, &test_data);
2272 * Multiple blocking read 1 to 512 sg elements
2274 static int mmc_test_profile_sglen_r_blocking_perf(struct mmc_test_card *test)
2276 unsigned int sg_len[] = {1, 1 << 3, 1 << 4, 1 << 5, 1 << 6,
2277 1 << 7, 1 << 8, 1 << 9};
2278 struct mmc_test_multiple_rw test_data = {
2280 .size = TEST_AREA_MAX_SIZE,
2281 .len = ARRAY_SIZE(sg_len),
2283 .do_nonblock_req = false,
2284 .prepare = MMC_TEST_PREP_NONE,
2287 return mmc_test_rw_multiple_sg_len(test, &test_data);
2291 * Multiple non-blocking read 1 to 512 sg elements
2293 static int mmc_test_profile_sglen_r_nonblock_perf(struct mmc_test_card *test)
2295 unsigned int sg_len[] = {1, 1 << 3, 1 << 4, 1 << 5, 1 << 6,
2296 1 << 7, 1 << 8, 1 << 9};
2297 struct mmc_test_multiple_rw test_data = {
2299 .size = TEST_AREA_MAX_SIZE,
2300 .len = ARRAY_SIZE(sg_len),
2302 .do_nonblock_req = true,
2303 .prepare = MMC_TEST_PREP_NONE,
2306 return mmc_test_rw_multiple_sg_len(test, &test_data);
2310 * eMMC hardware reset.
2312 static int mmc_test_reset(struct mmc_test_card *test)
2314 struct mmc_card *card = test->card;
2315 struct mmc_host *host = card->host;
2318 err = mmc_hw_reset(host);
2321 * Reset will re-enable the card's command queue, but tests
2322 * expect it to be disabled.
2324 if (card->ext_csd.cmdq_en)
2325 mmc_cmdq_disable(card);
2327 } else if (err == -EOPNOTSUPP) {
2328 return RESULT_UNSUP_HOST;
2334 static int mmc_test_send_status(struct mmc_test_card *test,
2335 struct mmc_command *cmd)
2337 memset(cmd, 0, sizeof(*cmd));
2339 cmd->opcode = MMC_SEND_STATUS;
2340 if (!mmc_host_is_spi(test->card->host))
2341 cmd->arg = test->card->rca << 16;
2342 cmd->flags = MMC_RSP_SPI_R2 | MMC_RSP_R1 | MMC_CMD_AC;
2344 return mmc_wait_for_cmd(test->card->host, cmd, 0);
2347 static int mmc_test_ongoing_transfer(struct mmc_test_card *test,
2348 unsigned int dev_addr, int use_sbc,
2349 int repeat_cmd, int write, int use_areq)
2351 struct mmc_test_req *rq = mmc_test_req_alloc();
2352 struct mmc_host *host = test->card->host;
2353 struct mmc_test_area *t = &test->area;
2354 struct mmc_request *mrq;
2355 unsigned long timeout;
2356 bool expired = false;
2357 int ret = 0, cmd_ret;
2366 mrq->sbc = &rq->sbc;
2367 mrq->cap_cmd_during_tfr = true;
2369 mmc_test_prepare_mrq(test, mrq, t->sg, t->sg_len, dev_addr, t->blocks,
2372 if (use_sbc && t->blocks > 1 && !mrq->sbc) {
2373 ret = mmc_host_cmd23(host) ?
2379 /* Start ongoing data request */
2381 ret = mmc_test_start_areq(test, mrq, NULL);
2385 mmc_wait_for_req(host, mrq);
2388 timeout = jiffies + msecs_to_jiffies(3000);
2392 /* Send status command while data transfer in progress */
2393 cmd_ret = mmc_test_send_status(test, &rq->status);
2397 status = rq->status.resp[0];
2398 if (status & R1_ERROR) {
2403 if (mmc_is_req_done(host, mrq))
2406 expired = time_after(jiffies, timeout);
2408 pr_info("%s: timeout waiting for Tran state status %#x\n",
2409 mmc_hostname(host), status);
2410 cmd_ret = -ETIMEDOUT;
2413 } while (repeat_cmd && R1_CURRENT_STATE(status) != R1_STATE_TRAN);
2415 /* Wait for data request to complete */
2417 ret = mmc_test_start_areq(test, NULL, mrq);
2419 mmc_wait_for_req_done(test->card->host, mrq);
2423 * For cap_cmd_during_tfr request, upper layer must send stop if
2426 if (mrq->data->stop && (mrq->data->error || !mrq->sbc)) {
2428 mmc_wait_for_cmd(host, mrq->data->stop, 0);
2430 ret = mmc_wait_for_cmd(host, mrq->data->stop, 0);
2437 pr_info("%s: Send Status failed: status %#x, error %d\n",
2438 mmc_hostname(test->card->host), status, cmd_ret);
2441 ret = mmc_test_check_result(test, mrq);
2445 ret = mmc_test_wait_busy(test);
2449 if (repeat_cmd && (t->blocks + 1) << 9 > t->max_tfr)
2450 pr_info("%s: %d commands completed during transfer of %u blocks\n",
2451 mmc_hostname(test->card->host), count, t->blocks);
2461 static int __mmc_test_cmds_during_tfr(struct mmc_test_card *test,
2462 unsigned long sz, int use_sbc, int write,
2465 struct mmc_test_area *t = &test->area;
2468 if (!(test->card->host->caps & MMC_CAP_CMD_DURING_TFR))
2469 return RESULT_UNSUP_HOST;
2471 ret = mmc_test_area_map(test, sz, 0, 0);
2475 ret = mmc_test_ongoing_transfer(test, t->dev_addr, use_sbc, 0, write,
2480 return mmc_test_ongoing_transfer(test, t->dev_addr, use_sbc, 1, write,
2484 static int mmc_test_cmds_during_tfr(struct mmc_test_card *test, int use_sbc,
2485 int write, int use_areq)
2487 struct mmc_test_area *t = &test->area;
2491 for (sz = 512; sz <= t->max_tfr; sz += 512) {
2492 ret = __mmc_test_cmds_during_tfr(test, sz, use_sbc, write,
2501 * Commands during read - no Set Block Count (CMD23).
2503 static int mmc_test_cmds_during_read(struct mmc_test_card *test)
2505 return mmc_test_cmds_during_tfr(test, 0, 0, 0);
2509 * Commands during write - no Set Block Count (CMD23).
2511 static int mmc_test_cmds_during_write(struct mmc_test_card *test)
2513 return mmc_test_cmds_during_tfr(test, 0, 1, 0);
2517 * Commands during read - use Set Block Count (CMD23).
2519 static int mmc_test_cmds_during_read_cmd23(struct mmc_test_card *test)
2521 return mmc_test_cmds_during_tfr(test, 1, 0, 0);
2525 * Commands during write - use Set Block Count (CMD23).
2527 static int mmc_test_cmds_during_write_cmd23(struct mmc_test_card *test)
2529 return mmc_test_cmds_during_tfr(test, 1, 1, 0);
2533 * Commands during non-blocking read - use Set Block Count (CMD23).
2535 static int mmc_test_cmds_during_read_cmd23_nonblock(struct mmc_test_card *test)
2537 return mmc_test_cmds_during_tfr(test, 1, 0, 1);
2541 * Commands during non-blocking write - use Set Block Count (CMD23).
2543 static int mmc_test_cmds_during_write_cmd23_nonblock(struct mmc_test_card *test)
2545 return mmc_test_cmds_during_tfr(test, 1, 1, 1);
2548 static const struct mmc_test_case mmc_test_cases[] = {
2550 .name = "Basic write (no data verification)",
2551 .run = mmc_test_basic_write,
2555 .name = "Basic read (no data verification)",
2556 .run = mmc_test_basic_read,
2560 .name = "Basic write (with data verification)",
2561 .prepare = mmc_test_prepare_write,
2562 .run = mmc_test_verify_write,
2563 .cleanup = mmc_test_cleanup,
2567 .name = "Basic read (with data verification)",
2568 .prepare = mmc_test_prepare_read,
2569 .run = mmc_test_verify_read,
2570 .cleanup = mmc_test_cleanup,
2574 .name = "Multi-block write",
2575 .prepare = mmc_test_prepare_write,
2576 .run = mmc_test_multi_write,
2577 .cleanup = mmc_test_cleanup,
2581 .name = "Multi-block read",
2582 .prepare = mmc_test_prepare_read,
2583 .run = mmc_test_multi_read,
2584 .cleanup = mmc_test_cleanup,
2588 .name = "Power of two block writes",
2589 .prepare = mmc_test_prepare_write,
2590 .run = mmc_test_pow2_write,
2591 .cleanup = mmc_test_cleanup,
2595 .name = "Power of two block reads",
2596 .prepare = mmc_test_prepare_read,
2597 .run = mmc_test_pow2_read,
2598 .cleanup = mmc_test_cleanup,
2602 .name = "Weird sized block writes",
2603 .prepare = mmc_test_prepare_write,
2604 .run = mmc_test_weird_write,
2605 .cleanup = mmc_test_cleanup,
2609 .name = "Weird sized block reads",
2610 .prepare = mmc_test_prepare_read,
2611 .run = mmc_test_weird_read,
2612 .cleanup = mmc_test_cleanup,
2616 .name = "Badly aligned write",
2617 .prepare = mmc_test_prepare_write,
2618 .run = mmc_test_align_write,
2619 .cleanup = mmc_test_cleanup,
2623 .name = "Badly aligned read",
2624 .prepare = mmc_test_prepare_read,
2625 .run = mmc_test_align_read,
2626 .cleanup = mmc_test_cleanup,
2630 .name = "Badly aligned multi-block write",
2631 .prepare = mmc_test_prepare_write,
2632 .run = mmc_test_align_multi_write,
2633 .cleanup = mmc_test_cleanup,
2637 .name = "Badly aligned multi-block read",
2638 .prepare = mmc_test_prepare_read,
2639 .run = mmc_test_align_multi_read,
2640 .cleanup = mmc_test_cleanup,
2644 .name = "Correct xfer_size at write (start failure)",
2645 .run = mmc_test_xfersize_write,
2649 .name = "Correct xfer_size at read (start failure)",
2650 .run = mmc_test_xfersize_read,
2654 .name = "Correct xfer_size at write (midway failure)",
2655 .run = mmc_test_multi_xfersize_write,
2659 .name = "Correct xfer_size at read (midway failure)",
2660 .run = mmc_test_multi_xfersize_read,
2663 #ifdef CONFIG_HIGHMEM
2666 .name = "Highmem write",
2667 .prepare = mmc_test_prepare_write,
2668 .run = mmc_test_write_high,
2669 .cleanup = mmc_test_cleanup,
2673 .name = "Highmem read",
2674 .prepare = mmc_test_prepare_read,
2675 .run = mmc_test_read_high,
2676 .cleanup = mmc_test_cleanup,
2680 .name = "Multi-block highmem write",
2681 .prepare = mmc_test_prepare_write,
2682 .run = mmc_test_multi_write_high,
2683 .cleanup = mmc_test_cleanup,
2687 .name = "Multi-block highmem read",
2688 .prepare = mmc_test_prepare_read,
2689 .run = mmc_test_multi_read_high,
2690 .cleanup = mmc_test_cleanup,
2696 .name = "Highmem write",
2697 .run = mmc_test_no_highmem,
2701 .name = "Highmem read",
2702 .run = mmc_test_no_highmem,
2706 .name = "Multi-block highmem write",
2707 .run = mmc_test_no_highmem,
2711 .name = "Multi-block highmem read",
2712 .run = mmc_test_no_highmem,
2715 #endif /* CONFIG_HIGHMEM */
2718 .name = "Best-case read performance",
2719 .prepare = mmc_test_area_prepare_fill,
2720 .run = mmc_test_best_read_performance,
2721 .cleanup = mmc_test_area_cleanup,
2725 .name = "Best-case write performance",
2726 .prepare = mmc_test_area_prepare_erase,
2727 .run = mmc_test_best_write_performance,
2728 .cleanup = mmc_test_area_cleanup,
2732 .name = "Best-case read performance into scattered pages",
2733 .prepare = mmc_test_area_prepare_fill,
2734 .run = mmc_test_best_read_perf_max_scatter,
2735 .cleanup = mmc_test_area_cleanup,
2739 .name = "Best-case write performance from scattered pages",
2740 .prepare = mmc_test_area_prepare_erase,
2741 .run = mmc_test_best_write_perf_max_scatter,
2742 .cleanup = mmc_test_area_cleanup,
2746 .name = "Single read performance by transfer size",
2747 .prepare = mmc_test_area_prepare_fill,
2748 .run = mmc_test_profile_read_perf,
2749 .cleanup = mmc_test_area_cleanup,
2753 .name = "Single write performance by transfer size",
2754 .prepare = mmc_test_area_prepare,
2755 .run = mmc_test_profile_write_perf,
2756 .cleanup = mmc_test_area_cleanup,
2760 .name = "Single trim performance by transfer size",
2761 .prepare = mmc_test_area_prepare_fill,
2762 .run = mmc_test_profile_trim_perf,
2763 .cleanup = mmc_test_area_cleanup,
2767 .name = "Consecutive read performance by transfer size",
2768 .prepare = mmc_test_area_prepare_fill,
2769 .run = mmc_test_profile_seq_read_perf,
2770 .cleanup = mmc_test_area_cleanup,
2774 .name = "Consecutive write performance by transfer size",
2775 .prepare = mmc_test_area_prepare,
2776 .run = mmc_test_profile_seq_write_perf,
2777 .cleanup = mmc_test_area_cleanup,
2781 .name = "Consecutive trim performance by transfer size",
2782 .prepare = mmc_test_area_prepare,
2783 .run = mmc_test_profile_seq_trim_perf,
2784 .cleanup = mmc_test_area_cleanup,
2788 .name = "Random read performance by transfer size",
2789 .prepare = mmc_test_area_prepare,
2790 .run = mmc_test_random_read_perf,
2791 .cleanup = mmc_test_area_cleanup,
2795 .name = "Random write performance by transfer size",
2796 .prepare = mmc_test_area_prepare,
2797 .run = mmc_test_random_write_perf,
2798 .cleanup = mmc_test_area_cleanup,
2802 .name = "Large sequential read into scattered pages",
2803 .prepare = mmc_test_area_prepare,
2804 .run = mmc_test_large_seq_read_perf,
2805 .cleanup = mmc_test_area_cleanup,
2809 .name = "Large sequential write from scattered pages",
2810 .prepare = mmc_test_area_prepare,
2811 .run = mmc_test_large_seq_write_perf,
2812 .cleanup = mmc_test_area_cleanup,
2816 .name = "Write performance with blocking req 4k to 4MB",
2817 .prepare = mmc_test_area_prepare,
2818 .run = mmc_test_profile_mult_write_blocking_perf,
2819 .cleanup = mmc_test_area_cleanup,
2823 .name = "Write performance with non-blocking req 4k to 4MB",
2824 .prepare = mmc_test_area_prepare,
2825 .run = mmc_test_profile_mult_write_nonblock_perf,
2826 .cleanup = mmc_test_area_cleanup,
2830 .name = "Read performance with blocking req 4k to 4MB",
2831 .prepare = mmc_test_area_prepare,
2832 .run = mmc_test_profile_mult_read_blocking_perf,
2833 .cleanup = mmc_test_area_cleanup,
2837 .name = "Read performance with non-blocking req 4k to 4MB",
2838 .prepare = mmc_test_area_prepare,
2839 .run = mmc_test_profile_mult_read_nonblock_perf,
2840 .cleanup = mmc_test_area_cleanup,
2844 .name = "Write performance blocking req 1 to 512 sg elems",
2845 .prepare = mmc_test_area_prepare,
2846 .run = mmc_test_profile_sglen_wr_blocking_perf,
2847 .cleanup = mmc_test_area_cleanup,
2851 .name = "Write performance non-blocking req 1 to 512 sg elems",
2852 .prepare = mmc_test_area_prepare,
2853 .run = mmc_test_profile_sglen_wr_nonblock_perf,
2854 .cleanup = mmc_test_area_cleanup,
2858 .name = "Read performance blocking req 1 to 512 sg elems",
2859 .prepare = mmc_test_area_prepare,
2860 .run = mmc_test_profile_sglen_r_blocking_perf,
2861 .cleanup = mmc_test_area_cleanup,
2865 .name = "Read performance non-blocking req 1 to 512 sg elems",
2866 .prepare = mmc_test_area_prepare,
2867 .run = mmc_test_profile_sglen_r_nonblock_perf,
2868 .cleanup = mmc_test_area_cleanup,
2872 .name = "Reset test",
2873 .run = mmc_test_reset,
2877 .name = "Commands during read - no Set Block Count (CMD23)",
2878 .prepare = mmc_test_area_prepare,
2879 .run = mmc_test_cmds_during_read,
2880 .cleanup = mmc_test_area_cleanup,
2884 .name = "Commands during write - no Set Block Count (CMD23)",
2885 .prepare = mmc_test_area_prepare,
2886 .run = mmc_test_cmds_during_write,
2887 .cleanup = mmc_test_area_cleanup,
2891 .name = "Commands during read - use Set Block Count (CMD23)",
2892 .prepare = mmc_test_area_prepare,
2893 .run = mmc_test_cmds_during_read_cmd23,
2894 .cleanup = mmc_test_area_cleanup,
2898 .name = "Commands during write - use Set Block Count (CMD23)",
2899 .prepare = mmc_test_area_prepare,
2900 .run = mmc_test_cmds_during_write_cmd23,
2901 .cleanup = mmc_test_area_cleanup,
2905 .name = "Commands during non-blocking read - use Set Block Count (CMD23)",
2906 .prepare = mmc_test_area_prepare,
2907 .run = mmc_test_cmds_during_read_cmd23_nonblock,
2908 .cleanup = mmc_test_area_cleanup,
2912 .name = "Commands during non-blocking write - use Set Block Count (CMD23)",
2913 .prepare = mmc_test_area_prepare,
2914 .run = mmc_test_cmds_during_write_cmd23_nonblock,
2915 .cleanup = mmc_test_area_cleanup,
2919 static DEFINE_MUTEX(mmc_test_lock);
2921 static LIST_HEAD(mmc_test_result);
2923 static void mmc_test_run(struct mmc_test_card *test, int testcase)
2927 pr_info("%s: Starting tests of card %s...\n",
2928 mmc_hostname(test->card->host), mmc_card_id(test->card));
2930 mmc_claim_host(test->card->host);
2932 for (i = 0; i < ARRAY_SIZE(mmc_test_cases); i++) {
2933 struct mmc_test_general_result *gr;
2935 if (testcase && ((i + 1) != testcase))
2938 pr_info("%s: Test case %d. %s...\n",
2939 mmc_hostname(test->card->host), i + 1,
2940 mmc_test_cases[i].name);
2942 if (mmc_test_cases[i].prepare) {
2943 ret = mmc_test_cases[i].prepare(test);
2945 pr_info("%s: Result: Prepare stage failed! (%d)\n",
2946 mmc_hostname(test->card->host),
2952 gr = kzalloc(sizeof(*gr), GFP_KERNEL);
2954 INIT_LIST_HEAD(&gr->tr_lst);
2956 /* Assign data what we know already */
2957 gr->card = test->card;
2960 /* Append container to global one */
2961 list_add_tail(&gr->link, &mmc_test_result);
2964 * Save the pointer to created container in our private
2970 ret = mmc_test_cases[i].run(test);
2973 pr_info("%s: Result: OK\n",
2974 mmc_hostname(test->card->host));
2977 pr_info("%s: Result: FAILED\n",
2978 mmc_hostname(test->card->host));
2980 case RESULT_UNSUP_HOST:
2981 pr_info("%s: Result: UNSUPPORTED (by host)\n",
2982 mmc_hostname(test->card->host));
2984 case RESULT_UNSUP_CARD:
2985 pr_info("%s: Result: UNSUPPORTED (by card)\n",
2986 mmc_hostname(test->card->host));
2989 pr_info("%s: Result: ERROR (%d)\n",
2990 mmc_hostname(test->card->host), ret);
2993 /* Save the result */
2997 if (mmc_test_cases[i].cleanup) {
2998 ret = mmc_test_cases[i].cleanup(test);
3000 pr_info("%s: Warning: Cleanup stage failed! (%d)\n",
3001 mmc_hostname(test->card->host),
3007 mmc_release_host(test->card->host);
3009 pr_info("%s: Tests completed.\n",
3010 mmc_hostname(test->card->host));
3013 static void mmc_test_free_result(struct mmc_card *card)
3015 struct mmc_test_general_result *gr, *grs;
3017 mutex_lock(&mmc_test_lock);
3019 list_for_each_entry_safe(gr, grs, &mmc_test_result, link) {
3020 struct mmc_test_transfer_result *tr, *trs;
3022 if (card && gr->card != card)
3025 list_for_each_entry_safe(tr, trs, &gr->tr_lst, link) {
3026 list_del(&tr->link);
3030 list_del(&gr->link);
3034 mutex_unlock(&mmc_test_lock);
3037 static LIST_HEAD(mmc_test_file_test);
3039 static int mtf_test_show(struct seq_file *sf, void *data)
3041 struct mmc_card *card = (struct mmc_card *)sf->private;
3042 struct mmc_test_general_result *gr;
3044 mutex_lock(&mmc_test_lock);
3046 list_for_each_entry(gr, &mmc_test_result, link) {
3047 struct mmc_test_transfer_result *tr;
3049 if (gr->card != card)
3052 seq_printf(sf, "Test %d: %d\n", gr->testcase + 1, gr->result);
3054 list_for_each_entry(tr, &gr->tr_lst, link) {
3055 seq_printf(sf, "%u %d %llu.%09u %u %u.%02u\n",
3056 tr->count, tr->sectors,
3057 (u64)tr->ts.tv_sec, (u32)tr->ts.tv_nsec,
3058 tr->rate, tr->iops / 100, tr->iops % 100);
3062 mutex_unlock(&mmc_test_lock);
3067 static int mtf_test_open(struct inode *inode, struct file *file)
3069 return single_open(file, mtf_test_show, inode->i_private);
3072 static ssize_t mtf_test_write(struct file *file, const char __user *buf,
3073 size_t count, loff_t *pos)
3075 struct seq_file *sf = (struct seq_file *)file->private_data;
3076 struct mmc_card *card = (struct mmc_card *)sf->private;
3077 struct mmc_test_card *test;
3081 ret = kstrtol_from_user(buf, count, 10, &testcase);
3085 test = kzalloc(sizeof(*test), GFP_KERNEL);
3090 * Remove all test cases associated with given card. Thus we have only
3091 * actual data of the last run.
3093 mmc_test_free_result(card);
3097 test->buffer = kzalloc(BUFFER_SIZE, GFP_KERNEL);
3098 #ifdef CONFIG_HIGHMEM
3099 test->highmem = alloc_pages(GFP_KERNEL | __GFP_HIGHMEM, BUFFER_ORDER);
3102 #ifdef CONFIG_HIGHMEM
3103 if (test->buffer && test->highmem) {
3107 mutex_lock(&mmc_test_lock);
3108 mmc_test_run(test, testcase);
3109 mutex_unlock(&mmc_test_lock);
3112 #ifdef CONFIG_HIGHMEM
3113 __free_pages(test->highmem, BUFFER_ORDER);
3115 kfree(test->buffer);
3121 static const struct file_operations mmc_test_fops_test = {
3122 .open = mtf_test_open,
3124 .write = mtf_test_write,
3125 .llseek = seq_lseek,
3126 .release = single_release,
3129 static int mtf_testlist_show(struct seq_file *sf, void *data)
3133 mutex_lock(&mmc_test_lock);
3135 seq_puts(sf, "0:\tRun all tests\n");
3136 for (i = 0; i < ARRAY_SIZE(mmc_test_cases); i++)
3137 seq_printf(sf, "%d:\t%s\n", i + 1, mmc_test_cases[i].name);
3139 mutex_unlock(&mmc_test_lock);
3144 DEFINE_SHOW_ATTRIBUTE(mtf_testlist);
3146 static void mmc_test_free_dbgfs_file(struct mmc_card *card)
3148 struct mmc_test_dbgfs_file *df, *dfs;
3150 mutex_lock(&mmc_test_lock);
3152 list_for_each_entry_safe(df, dfs, &mmc_test_file_test, link) {
3153 if (card && df->card != card)
3155 debugfs_remove(df->file);
3156 list_del(&df->link);
3160 mutex_unlock(&mmc_test_lock);
3163 static int __mmc_test_register_dbgfs_file(struct mmc_card *card,
3164 const char *name, umode_t mode, const struct file_operations *fops)
3166 struct dentry *file = NULL;
3167 struct mmc_test_dbgfs_file *df;
3169 if (card->debugfs_root)
3170 debugfs_create_file(name, mode, card->debugfs_root, card, fops);
3172 df = kmalloc(sizeof(*df), GFP_KERNEL);
3174 debugfs_remove(file);
3181 list_add(&df->link, &mmc_test_file_test);
3185 static int mmc_test_register_dbgfs_file(struct mmc_card *card)
3189 mutex_lock(&mmc_test_lock);
3191 ret = __mmc_test_register_dbgfs_file(card, "test", S_IWUSR | S_IRUGO,
3192 &mmc_test_fops_test);
3196 ret = __mmc_test_register_dbgfs_file(card, "testlist", S_IRUGO,
3197 &mtf_testlist_fops);
3202 mutex_unlock(&mmc_test_lock);
3207 static int mmc_test_probe(struct mmc_card *card)
3211 if (!mmc_card_mmc(card) && !mmc_card_sd(card))
3214 ret = mmc_test_register_dbgfs_file(card);
3218 if (card->ext_csd.cmdq_en) {
3219 mmc_claim_host(card->host);
3220 ret = mmc_cmdq_disable(card);
3221 mmc_release_host(card->host);
3226 dev_info(&card->dev, "Card claimed for testing.\n");
3231 static void mmc_test_remove(struct mmc_card *card)
3233 if (card->reenable_cmdq) {
3234 mmc_claim_host(card->host);
3235 mmc_cmdq_enable(card);
3236 mmc_release_host(card->host);
3238 mmc_test_free_result(card);
3239 mmc_test_free_dbgfs_file(card);
3242 static void mmc_test_shutdown(struct mmc_card *card)
3246 static struct mmc_driver mmc_driver = {
3250 .probe = mmc_test_probe,
3251 .remove = mmc_test_remove,
3252 .shutdown = mmc_test_shutdown,
3255 static int __init mmc_test_init(void)
3257 return mmc_register_driver(&mmc_driver);
3260 static void __exit mmc_test_exit(void)
3262 /* Clear stalled data if card is still plugged */
3263 mmc_test_free_result(NULL);
3264 mmc_test_free_dbgfs_file(NULL);
3266 mmc_unregister_driver(&mmc_driver);
3269 module_init(mmc_test_init);
3270 module_exit(mmc_test_exit);
3272 MODULE_LICENSE("GPL");
3273 MODULE_DESCRIPTION("Multimedia Card (MMC) host test driver");
3274 MODULE_AUTHOR("Pierre Ossman");