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/list.h>
15 #include <linux/debugfs.h>
16 #include <linux/uaccess.h>
17 #include <linux/seq_file.h>
18 #include <linux/module.h>
28 #define RESULT_UNSUP_HOST 2
29 #define RESULT_UNSUP_CARD 3
31 #define BUFFER_ORDER 2
32 #define BUFFER_SIZE (PAGE_SIZE << BUFFER_ORDER)
34 #define TEST_ALIGN_END 8
37 * Limit the test area size to the maximum MMC HC erase group size. Note that
38 * the maximum SD allocation unit size is just 4MiB.
40 #define TEST_AREA_MAX_SIZE (128 * 1024 * 1024)
43 * struct mmc_test_pages - pages allocated by 'alloc_pages()'.
44 * @page: first page in the allocation
45 * @order: order of the number of pages allocated
47 struct mmc_test_pages {
53 * struct mmc_test_mem - allocated memory.
54 * @arr: array of allocations
55 * @cnt: number of allocations
58 struct mmc_test_pages *arr;
63 * struct mmc_test_area - information for performance tests.
64 * @max_sz: test area size (in bytes)
65 * @dev_addr: address on card at which to do performance tests
66 * @max_tfr: maximum transfer size allowed by driver (in bytes)
67 * @max_segs: maximum segments allowed by driver in scatterlist @sg
68 * @max_seg_sz: maximum segment size allowed by driver
69 * @blocks: number of (512 byte) blocks currently mapped by @sg
70 * @sg_len: length of currently mapped scatterlist @sg
71 * @mem: allocated memory
73 * @sg_areq: scatterlist for non-blocking request
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;
85 struct scatterlist *sg_areq;
89 * struct mmc_test_transfer_result - transfer results for performance tests.
90 * @link: double-linked list
91 * @count: amount of group of sectors to check
92 * @sectors: amount of sectors to check in one group
93 * @ts: time values of transfer
94 * @rate: calculated transfer rate
95 * @iops: I/O operations per second (times 100)
97 struct mmc_test_transfer_result {
98 struct list_head link;
100 unsigned int sectors;
101 struct timespec64 ts;
107 * struct mmc_test_general_result - results for tests.
108 * @link: double-linked list
109 * @card: card under test
110 * @testcase: number of test case
111 * @result: result of test run
112 * @tr_lst: transfer measurements if any as mmc_test_transfer_result
114 struct mmc_test_general_result {
115 struct list_head link;
116 struct mmc_card *card;
119 struct list_head tr_lst;
123 * struct mmc_test_dbgfs_file - debugfs related file.
124 * @link: double-linked list
125 * @card: card under test
126 * @file: file created under debugfs
128 struct mmc_test_dbgfs_file {
129 struct list_head link;
130 struct mmc_card *card;
135 * struct mmc_test_card - test information.
136 * @card: card under test
137 * @scratch: transfer buffer
138 * @buffer: transfer buffer
139 * @highmem: buffer for highmem tests
140 * @area: information for performance tests
141 * @gr: pointer to results of current testcase
143 struct mmc_test_card {
144 struct mmc_card *card;
146 u8 scratch[BUFFER_SIZE];
148 #ifdef CONFIG_HIGHMEM
149 struct page *highmem;
151 struct mmc_test_area area;
152 struct mmc_test_general_result *gr;
155 enum mmc_test_prep_media {
156 MMC_TEST_PREP_NONE = 0,
157 MMC_TEST_PREP_WRITE_FULL = 1 << 0,
158 MMC_TEST_PREP_ERASE = 1 << 1,
161 struct mmc_test_multiple_rw {
162 unsigned int *sg_len;
167 bool do_nonblock_req;
168 enum mmc_test_prep_media prepare;
171 /*******************************************************************/
172 /* General helper functions */
173 /*******************************************************************/
176 * Configure correct block size in card
178 static int mmc_test_set_blksize(struct mmc_test_card *test, unsigned size)
180 return mmc_set_blocklen(test->card, size);
183 static bool mmc_test_card_cmd23(struct mmc_card *card)
185 return mmc_card_mmc(card) ||
186 (mmc_card_sd(card) && card->scr.cmds & SD_SCR_CMD23_SUPPORT);
189 static void mmc_test_prepare_sbc(struct mmc_test_card *test,
190 struct mmc_request *mrq, unsigned int blocks)
192 struct mmc_card *card = test->card;
194 if (!mrq->sbc || !mmc_host_cmd23(card->host) ||
195 !mmc_test_card_cmd23(card) || !mmc_op_multi(mrq->cmd->opcode) ||
196 (card->quirks & MMC_QUIRK_BLK_NO_CMD23)) {
201 mrq->sbc->opcode = MMC_SET_BLOCK_COUNT;
202 mrq->sbc->arg = blocks;
203 mrq->sbc->flags = MMC_RSP_R1 | MMC_CMD_AC;
207 * Fill in the mmc_request structure given a set of transfer parameters.
209 static void mmc_test_prepare_mrq(struct mmc_test_card *test,
210 struct mmc_request *mrq, struct scatterlist *sg, unsigned sg_len,
211 unsigned dev_addr, unsigned blocks, unsigned blksz, int write)
213 if (WARN_ON(!mrq || !mrq->cmd || !mrq->data || !mrq->stop))
217 mrq->cmd->opcode = write ?
218 MMC_WRITE_MULTIPLE_BLOCK : MMC_READ_MULTIPLE_BLOCK;
220 mrq->cmd->opcode = write ?
221 MMC_WRITE_BLOCK : MMC_READ_SINGLE_BLOCK;
224 mrq->cmd->arg = dev_addr;
225 if (!mmc_card_blockaddr(test->card))
228 mrq->cmd->flags = MMC_RSP_R1 | MMC_CMD_ADTC;
233 mrq->stop->opcode = MMC_STOP_TRANSMISSION;
235 mrq->stop->flags = MMC_RSP_R1B | MMC_CMD_AC;
238 mrq->data->blksz = blksz;
239 mrq->data->blocks = blocks;
240 mrq->data->flags = write ? MMC_DATA_WRITE : MMC_DATA_READ;
242 mrq->data->sg_len = sg_len;
244 mmc_test_prepare_sbc(test, mrq, blocks);
246 mmc_set_data_timeout(mrq->data, test->card);
249 static int mmc_test_busy(struct mmc_command *cmd)
251 return !(cmd->resp[0] & R1_READY_FOR_DATA) ||
252 (R1_CURRENT_STATE(cmd->resp[0]) == R1_STATE_PRG);
256 * Wait for the card to finish the busy state
258 static int mmc_test_wait_busy(struct mmc_test_card *test)
261 struct mmc_command cmd = {};
265 memset(&cmd, 0, sizeof(struct mmc_command));
267 cmd.opcode = MMC_SEND_STATUS;
268 cmd.arg = test->card->rca << 16;
269 cmd.flags = MMC_RSP_R1 | MMC_CMD_AC;
271 ret = mmc_wait_for_cmd(test->card->host, &cmd, 0);
275 if (!busy && mmc_test_busy(&cmd)) {
277 if (test->card->host->caps & MMC_CAP_WAIT_WHILE_BUSY)
278 pr_info("%s: Warning: Host did not wait for busy state to end.\n",
279 mmc_hostname(test->card->host));
281 } while (mmc_test_busy(&cmd));
287 * Transfer a single sector of kernel addressable data
289 static int mmc_test_buffer_transfer(struct mmc_test_card *test,
290 u8 *buffer, unsigned addr, unsigned blksz, int write)
292 struct mmc_request mrq = {};
293 struct mmc_command cmd = {};
294 struct mmc_command stop = {};
295 struct mmc_data data = {};
297 struct scatterlist sg;
303 sg_init_one(&sg, buffer, blksz);
305 mmc_test_prepare_mrq(test, &mrq, &sg, 1, addr, 1, blksz, write);
307 mmc_wait_for_req(test->card->host, &mrq);
314 return mmc_test_wait_busy(test);
317 static void mmc_test_free_mem(struct mmc_test_mem *mem)
322 __free_pages(mem->arr[mem->cnt].page,
323 mem->arr[mem->cnt].order);
329 * Allocate a lot of memory, preferably max_sz but at least min_sz. In case
330 * there isn't much memory do not exceed 1/16th total lowmem pages. Also do
331 * not exceed a maximum number of segments and try not to make segments much
332 * bigger than maximum segment size.
334 static struct mmc_test_mem *mmc_test_alloc_mem(unsigned long min_sz,
335 unsigned long max_sz,
336 unsigned int max_segs,
337 unsigned int max_seg_sz)
339 unsigned long max_page_cnt = DIV_ROUND_UP(max_sz, PAGE_SIZE);
340 unsigned long min_page_cnt = DIV_ROUND_UP(min_sz, PAGE_SIZE);
341 unsigned long max_seg_page_cnt = DIV_ROUND_UP(max_seg_sz, PAGE_SIZE);
342 unsigned long page_cnt = 0;
343 unsigned long limit = nr_free_buffer_pages() >> 4;
344 struct mmc_test_mem *mem;
346 if (max_page_cnt > limit)
347 max_page_cnt = limit;
348 if (min_page_cnt > max_page_cnt)
349 min_page_cnt = max_page_cnt;
351 if (max_seg_page_cnt > max_page_cnt)
352 max_seg_page_cnt = max_page_cnt;
354 if (max_segs > max_page_cnt)
355 max_segs = max_page_cnt;
357 mem = kzalloc(sizeof(*mem), GFP_KERNEL);
361 mem->arr = kcalloc(max_segs, sizeof(*mem->arr), GFP_KERNEL);
365 while (max_page_cnt) {
368 gfp_t flags = GFP_KERNEL | GFP_DMA | __GFP_NOWARN |
371 order = get_order(max_seg_page_cnt << PAGE_SHIFT);
373 page = alloc_pages(flags, order);
379 if (page_cnt < min_page_cnt)
383 mem->arr[mem->cnt].page = page;
384 mem->arr[mem->cnt].order = order;
386 if (max_page_cnt <= (1UL << order))
388 max_page_cnt -= 1UL << order;
389 page_cnt += 1UL << order;
390 if (mem->cnt >= max_segs) {
391 if (page_cnt < min_page_cnt)
400 mmc_test_free_mem(mem);
405 * Map memory into a scatterlist. Optionally allow the same memory to be
406 * mapped more than once.
408 static int mmc_test_map_sg(struct mmc_test_mem *mem, unsigned long size,
409 struct scatterlist *sglist, int repeat,
410 unsigned int max_segs, unsigned int max_seg_sz,
411 unsigned int *sg_len, int min_sg_len)
413 struct scatterlist *sg = NULL;
415 unsigned long sz = size;
417 sg_init_table(sglist, max_segs);
418 if (min_sg_len > max_segs)
419 min_sg_len = max_segs;
423 for (i = 0; i < mem->cnt; i++) {
424 unsigned long len = PAGE_SIZE << mem->arr[i].order;
426 if (min_sg_len && (size / min_sg_len < len))
427 len = ALIGN(size / min_sg_len, 512);
430 if (len > max_seg_sz)
438 sg_set_page(sg, mem->arr[i].page, len, 0);
444 } while (sz && repeat);
456 * Map memory into a scatterlist so that no pages are contiguous. Allow the
457 * same memory to be mapped more than once.
459 static int mmc_test_map_sg_max_scatter(struct mmc_test_mem *mem,
461 struct scatterlist *sglist,
462 unsigned int max_segs,
463 unsigned int max_seg_sz,
464 unsigned int *sg_len)
466 struct scatterlist *sg = NULL;
467 unsigned int i = mem->cnt, cnt;
469 void *base, *addr, *last_addr = NULL;
471 sg_init_table(sglist, max_segs);
475 base = page_address(mem->arr[--i].page);
476 cnt = 1 << mem->arr[i].order;
478 addr = base + PAGE_SIZE * --cnt;
479 if (last_addr && last_addr + PAGE_SIZE == addr)
483 if (len > max_seg_sz)
493 sg_set_page(sg, virt_to_page(addr), len, 0);
508 * Calculate transfer rate in bytes per second.
510 static unsigned int mmc_test_rate(uint64_t bytes, struct timespec64 *ts)
514 ns = timespec64_to_ns(ts);
517 while (ns > UINT_MAX) {
525 do_div(bytes, (uint32_t)ns);
531 * Save transfer results for future usage
533 static void mmc_test_save_transfer_result(struct mmc_test_card *test,
534 unsigned int count, unsigned int sectors, struct timespec64 ts,
535 unsigned int rate, unsigned int iops)
537 struct mmc_test_transfer_result *tr;
542 tr = kmalloc(sizeof(*tr), GFP_KERNEL);
547 tr->sectors = sectors;
552 list_add_tail(&tr->link, &test->gr->tr_lst);
556 * Print the transfer rate.
558 static void mmc_test_print_rate(struct mmc_test_card *test, uint64_t bytes,
559 struct timespec64 *ts1, struct timespec64 *ts2)
561 unsigned int rate, iops, sectors = bytes >> 9;
562 struct timespec64 ts;
564 ts = timespec64_sub(*ts2, *ts1);
566 rate = mmc_test_rate(bytes, &ts);
567 iops = mmc_test_rate(100, &ts); /* I/O ops per sec x 100 */
569 pr_info("%s: Transfer of %u sectors (%u%s KiB) took %llu.%09u "
570 "seconds (%u kB/s, %u KiB/s, %u.%02u IOPS)\n",
571 mmc_hostname(test->card->host), sectors, sectors >> 1,
572 (sectors & 1 ? ".5" : ""), (u64)ts.tv_sec,
573 (u32)ts.tv_nsec, rate / 1000, rate / 1024,
574 iops / 100, iops % 100);
576 mmc_test_save_transfer_result(test, 1, sectors, ts, rate, iops);
580 * Print the average transfer rate.
582 static void mmc_test_print_avg_rate(struct mmc_test_card *test, uint64_t bytes,
583 unsigned int count, struct timespec64 *ts1,
584 struct timespec64 *ts2)
586 unsigned int rate, iops, sectors = bytes >> 9;
587 uint64_t tot = bytes * count;
588 struct timespec64 ts;
590 ts = timespec64_sub(*ts2, *ts1);
592 rate = mmc_test_rate(tot, &ts);
593 iops = mmc_test_rate(count * 100, &ts); /* I/O ops per sec x 100 */
595 pr_info("%s: Transfer of %u x %u sectors (%u x %u%s KiB) took "
596 "%llu.%09u seconds (%u kB/s, %u KiB/s, "
597 "%u.%02u IOPS, sg_len %d)\n",
598 mmc_hostname(test->card->host), count, sectors, count,
599 sectors >> 1, (sectors & 1 ? ".5" : ""),
600 (u64)ts.tv_sec, (u32)ts.tv_nsec,
601 rate / 1000, rate / 1024, iops / 100, iops % 100,
604 mmc_test_save_transfer_result(test, count, sectors, ts, rate, iops);
608 * Return the card size in sectors.
610 static unsigned int mmc_test_capacity(struct mmc_card *card)
612 if (!mmc_card_sd(card) && mmc_card_blockaddr(card))
613 return card->ext_csd.sectors;
615 return card->csd.capacity << (card->csd.read_blkbits - 9);
618 /*******************************************************************/
619 /* Test preparation and cleanup */
620 /*******************************************************************/
623 * Fill the first couple of sectors of the card with known data
624 * so that bad reads/writes can be detected
626 static int __mmc_test_prepare(struct mmc_test_card *test, int write, int val)
630 ret = mmc_test_set_blksize(test, 512);
635 memset(test->buffer, val, 512);
637 for (i = 0; i < 512; i++)
641 for (i = 0; i < BUFFER_SIZE / 512; i++) {
642 ret = mmc_test_buffer_transfer(test, test->buffer, i, 512, 1);
650 static int mmc_test_prepare_write(struct mmc_test_card *test)
652 return __mmc_test_prepare(test, 1, 0xDF);
655 static int mmc_test_prepare_read(struct mmc_test_card *test)
657 return __mmc_test_prepare(test, 0, 0);
660 static int mmc_test_cleanup(struct mmc_test_card *test)
662 return __mmc_test_prepare(test, 1, 0);
665 /*******************************************************************/
666 /* Test execution helpers */
667 /*******************************************************************/
670 * Modifies the mmc_request to perform the "short transfer" tests
672 static void mmc_test_prepare_broken_mrq(struct mmc_test_card *test,
673 struct mmc_request *mrq, int write)
675 if (WARN_ON(!mrq || !mrq->cmd || !mrq->data))
678 if (mrq->data->blocks > 1) {
679 mrq->cmd->opcode = write ?
680 MMC_WRITE_BLOCK : MMC_READ_SINGLE_BLOCK;
683 mrq->cmd->opcode = MMC_SEND_STATUS;
684 mrq->cmd->arg = test->card->rca << 16;
689 * Checks that a normal transfer didn't have any errors
691 static int mmc_test_check_result(struct mmc_test_card *test,
692 struct mmc_request *mrq)
696 if (WARN_ON(!mrq || !mrq->cmd || !mrq->data))
701 if (mrq->sbc && mrq->sbc->error)
702 ret = mrq->sbc->error;
703 if (!ret && mrq->cmd->error)
704 ret = mrq->cmd->error;
705 if (!ret && mrq->data->error)
706 ret = mrq->data->error;
707 if (!ret && mrq->stop && mrq->stop->error)
708 ret = mrq->stop->error;
709 if (!ret && mrq->data->bytes_xfered !=
710 mrq->data->blocks * mrq->data->blksz)
714 ret = RESULT_UNSUP_HOST;
720 * Checks that a "short transfer" behaved as expected
722 static int mmc_test_check_broken_result(struct mmc_test_card *test,
723 struct mmc_request *mrq)
727 if (WARN_ON(!mrq || !mrq->cmd || !mrq->data))
732 if (!ret && mrq->cmd->error)
733 ret = mrq->cmd->error;
734 if (!ret && mrq->data->error == 0)
736 if (!ret && mrq->data->error != -ETIMEDOUT)
737 ret = mrq->data->error;
738 if (!ret && mrq->stop && mrq->stop->error)
739 ret = mrq->stop->error;
740 if (mrq->data->blocks > 1) {
741 if (!ret && mrq->data->bytes_xfered > mrq->data->blksz)
744 if (!ret && mrq->data->bytes_xfered > 0)
749 ret = RESULT_UNSUP_HOST;
754 struct mmc_test_req {
755 struct mmc_request mrq;
756 struct mmc_command sbc;
757 struct mmc_command cmd;
758 struct mmc_command stop;
759 struct mmc_command status;
760 struct mmc_data data;
764 * Tests nonblock transfer with certain parameters
766 static void mmc_test_req_reset(struct mmc_test_req *rq)
768 memset(rq, 0, sizeof(struct mmc_test_req));
770 rq->mrq.cmd = &rq->cmd;
771 rq->mrq.data = &rq->data;
772 rq->mrq.stop = &rq->stop;
775 static struct mmc_test_req *mmc_test_req_alloc(void)
777 struct mmc_test_req *rq = kmalloc(sizeof(*rq), GFP_KERNEL);
780 mmc_test_req_reset(rq);
785 static void mmc_test_wait_done(struct mmc_request *mrq)
787 complete(&mrq->completion);
790 static int mmc_test_start_areq(struct mmc_test_card *test,
791 struct mmc_request *mrq,
792 struct mmc_request *prev_mrq)
794 struct mmc_host *host = test->card->host;
798 init_completion(&mrq->completion);
799 mrq->done = mmc_test_wait_done;
800 mmc_pre_req(host, mrq);
804 wait_for_completion(&prev_mrq->completion);
805 err = mmc_test_wait_busy(test);
807 err = mmc_test_check_result(test, prev_mrq);
811 err = mmc_start_request(host, mrq);
813 mmc_retune_release(host);
817 mmc_post_req(host, prev_mrq, 0);
820 mmc_post_req(host, mrq, err);
825 static int mmc_test_nonblock_transfer(struct mmc_test_card *test,
826 unsigned int dev_addr, int write,
829 struct mmc_test_req *rq1, *rq2;
830 struct mmc_request *mrq, *prev_mrq;
833 struct mmc_test_area *t = &test->area;
834 struct scatterlist *sg = t->sg;
835 struct scatterlist *sg_areq = t->sg_areq;
837 rq1 = mmc_test_req_alloc();
838 rq2 = mmc_test_req_alloc();
847 for (i = 0; i < count; i++) {
848 mmc_test_req_reset(container_of(mrq, struct mmc_test_req, mrq));
849 mmc_test_prepare_mrq(test, mrq, sg, t->sg_len, dev_addr,
850 t->blocks, 512, write);
851 ret = mmc_test_start_areq(test, mrq, prev_mrq);
856 prev_mrq = &rq2->mrq;
860 dev_addr += t->blocks;
863 ret = mmc_test_start_areq(test, NULL, prev_mrq);
871 * Tests a basic transfer with certain parameters
873 static int mmc_test_simple_transfer(struct mmc_test_card *test,
874 struct scatterlist *sg, unsigned sg_len, unsigned dev_addr,
875 unsigned blocks, unsigned blksz, int write)
877 struct mmc_request mrq = {};
878 struct mmc_command cmd = {};
879 struct mmc_command stop = {};
880 struct mmc_data data = {};
886 mmc_test_prepare_mrq(test, &mrq, sg, sg_len, dev_addr,
887 blocks, blksz, write);
889 mmc_wait_for_req(test->card->host, &mrq);
891 mmc_test_wait_busy(test);
893 return mmc_test_check_result(test, &mrq);
897 * Tests a transfer where the card will fail completely or partly
899 static int mmc_test_broken_transfer(struct mmc_test_card *test,
900 unsigned blocks, unsigned blksz, int write)
902 struct mmc_request mrq = {};
903 struct mmc_command cmd = {};
904 struct mmc_command stop = {};
905 struct mmc_data data = {};
907 struct scatterlist sg;
913 sg_init_one(&sg, test->buffer, blocks * blksz);
915 mmc_test_prepare_mrq(test, &mrq, &sg, 1, 0, blocks, blksz, write);
916 mmc_test_prepare_broken_mrq(test, &mrq, write);
918 mmc_wait_for_req(test->card->host, &mrq);
920 mmc_test_wait_busy(test);
922 return mmc_test_check_broken_result(test, &mrq);
926 * Does a complete transfer test where data is also validated
928 * Note: mmc_test_prepare() must have been done before this call
930 static int mmc_test_transfer(struct mmc_test_card *test,
931 struct scatterlist *sg, unsigned sg_len, unsigned dev_addr,
932 unsigned blocks, unsigned blksz, int write)
938 for (i = 0; i < blocks * blksz; i++)
939 test->scratch[i] = i;
941 memset(test->scratch, 0, BUFFER_SIZE);
943 local_irq_save(flags);
944 sg_copy_from_buffer(sg, sg_len, test->scratch, BUFFER_SIZE);
945 local_irq_restore(flags);
947 ret = mmc_test_set_blksize(test, blksz);
951 ret = mmc_test_simple_transfer(test, sg, sg_len, dev_addr,
952 blocks, blksz, write);
959 ret = mmc_test_set_blksize(test, 512);
963 sectors = (blocks * blksz + 511) / 512;
964 if ((sectors * 512) == (blocks * blksz))
967 if ((sectors * 512) > BUFFER_SIZE)
970 memset(test->buffer, 0, sectors * 512);
972 for (i = 0; i < sectors; i++) {
973 ret = mmc_test_buffer_transfer(test,
974 test->buffer + i * 512,
975 dev_addr + i, 512, 0);
980 for (i = 0; i < blocks * blksz; i++) {
981 if (test->buffer[i] != (u8)i)
985 for (; i < sectors * 512; i++) {
986 if (test->buffer[i] != 0xDF)
990 local_irq_save(flags);
991 sg_copy_to_buffer(sg, sg_len, test->scratch, BUFFER_SIZE);
992 local_irq_restore(flags);
993 for (i = 0; i < blocks * blksz; i++) {
994 if (test->scratch[i] != (u8)i)
1002 /*******************************************************************/
1004 /*******************************************************************/
1006 struct mmc_test_case {
1009 int (*prepare)(struct mmc_test_card *);
1010 int (*run)(struct mmc_test_card *);
1011 int (*cleanup)(struct mmc_test_card *);
1014 static int mmc_test_basic_write(struct mmc_test_card *test)
1017 struct scatterlist sg;
1019 ret = mmc_test_set_blksize(test, 512);
1023 sg_init_one(&sg, test->buffer, 512);
1025 return mmc_test_simple_transfer(test, &sg, 1, 0, 1, 512, 1);
1028 static int mmc_test_basic_read(struct mmc_test_card *test)
1031 struct scatterlist sg;
1033 ret = mmc_test_set_blksize(test, 512);
1037 sg_init_one(&sg, test->buffer, 512);
1039 return mmc_test_simple_transfer(test, &sg, 1, 0, 1, 512, 0);
1042 static int mmc_test_verify_write(struct mmc_test_card *test)
1044 struct scatterlist sg;
1046 sg_init_one(&sg, test->buffer, 512);
1048 return mmc_test_transfer(test, &sg, 1, 0, 1, 512, 1);
1051 static int mmc_test_verify_read(struct mmc_test_card *test)
1053 struct scatterlist sg;
1055 sg_init_one(&sg, test->buffer, 512);
1057 return mmc_test_transfer(test, &sg, 1, 0, 1, 512, 0);
1060 static int mmc_test_multi_write(struct mmc_test_card *test)
1063 struct scatterlist sg;
1065 if (test->card->host->max_blk_count == 1)
1066 return RESULT_UNSUP_HOST;
1068 size = PAGE_SIZE * 2;
1069 size = min(size, test->card->host->max_req_size);
1070 size = min(size, test->card->host->max_seg_size);
1071 size = min(size, test->card->host->max_blk_count * 512);
1074 return RESULT_UNSUP_HOST;
1076 sg_init_one(&sg, test->buffer, size);
1078 return mmc_test_transfer(test, &sg, 1, 0, size / 512, 512, 1);
1081 static int mmc_test_multi_read(struct mmc_test_card *test)
1084 struct scatterlist sg;
1086 if (test->card->host->max_blk_count == 1)
1087 return RESULT_UNSUP_HOST;
1089 size = PAGE_SIZE * 2;
1090 size = min(size, test->card->host->max_req_size);
1091 size = min(size, test->card->host->max_seg_size);
1092 size = min(size, test->card->host->max_blk_count * 512);
1095 return RESULT_UNSUP_HOST;
1097 sg_init_one(&sg, test->buffer, size);
1099 return mmc_test_transfer(test, &sg, 1, 0, size / 512, 512, 0);
1102 static int mmc_test_pow2_write(struct mmc_test_card *test)
1105 struct scatterlist sg;
1107 if (!test->card->csd.write_partial)
1108 return RESULT_UNSUP_CARD;
1110 for (i = 1; i < 512; i <<= 1) {
1111 sg_init_one(&sg, test->buffer, i);
1112 ret = mmc_test_transfer(test, &sg, 1, 0, 1, i, 1);
1120 static int mmc_test_pow2_read(struct mmc_test_card *test)
1123 struct scatterlist sg;
1125 if (!test->card->csd.read_partial)
1126 return RESULT_UNSUP_CARD;
1128 for (i = 1; i < 512; i <<= 1) {
1129 sg_init_one(&sg, test->buffer, i);
1130 ret = mmc_test_transfer(test, &sg, 1, 0, 1, i, 0);
1138 static int mmc_test_weird_write(struct mmc_test_card *test)
1141 struct scatterlist sg;
1143 if (!test->card->csd.write_partial)
1144 return RESULT_UNSUP_CARD;
1146 for (i = 3; i < 512; i += 7) {
1147 sg_init_one(&sg, test->buffer, i);
1148 ret = mmc_test_transfer(test, &sg, 1, 0, 1, i, 1);
1156 static int mmc_test_weird_read(struct mmc_test_card *test)
1159 struct scatterlist sg;
1161 if (!test->card->csd.read_partial)
1162 return RESULT_UNSUP_CARD;
1164 for (i = 3; i < 512; i += 7) {
1165 sg_init_one(&sg, test->buffer, i);
1166 ret = mmc_test_transfer(test, &sg, 1, 0, 1, i, 0);
1174 static int mmc_test_align_write(struct mmc_test_card *test)
1177 struct scatterlist sg;
1179 for (i = 1; i < TEST_ALIGN_END; i++) {
1180 sg_init_one(&sg, test->buffer + i, 512);
1181 ret = mmc_test_transfer(test, &sg, 1, 0, 1, 512, 1);
1189 static int mmc_test_align_read(struct mmc_test_card *test)
1192 struct scatterlist sg;
1194 for (i = 1; i < TEST_ALIGN_END; i++) {
1195 sg_init_one(&sg, test->buffer + i, 512);
1196 ret = mmc_test_transfer(test, &sg, 1, 0, 1, 512, 0);
1204 static int mmc_test_align_multi_write(struct mmc_test_card *test)
1208 struct scatterlist sg;
1210 if (test->card->host->max_blk_count == 1)
1211 return RESULT_UNSUP_HOST;
1213 size = PAGE_SIZE * 2;
1214 size = min(size, test->card->host->max_req_size);
1215 size = min(size, test->card->host->max_seg_size);
1216 size = min(size, test->card->host->max_blk_count * 512);
1219 return RESULT_UNSUP_HOST;
1221 for (i = 1; i < TEST_ALIGN_END; i++) {
1222 sg_init_one(&sg, test->buffer + i, size);
1223 ret = mmc_test_transfer(test, &sg, 1, 0, size / 512, 512, 1);
1231 static int mmc_test_align_multi_read(struct mmc_test_card *test)
1235 struct scatterlist sg;
1237 if (test->card->host->max_blk_count == 1)
1238 return RESULT_UNSUP_HOST;
1240 size = PAGE_SIZE * 2;
1241 size = min(size, test->card->host->max_req_size);
1242 size = min(size, test->card->host->max_seg_size);
1243 size = min(size, test->card->host->max_blk_count * 512);
1246 return RESULT_UNSUP_HOST;
1248 for (i = 1; i < TEST_ALIGN_END; i++) {
1249 sg_init_one(&sg, test->buffer + i, size);
1250 ret = mmc_test_transfer(test, &sg, 1, 0, size / 512, 512, 0);
1258 static int mmc_test_xfersize_write(struct mmc_test_card *test)
1262 ret = mmc_test_set_blksize(test, 512);
1266 return mmc_test_broken_transfer(test, 1, 512, 1);
1269 static int mmc_test_xfersize_read(struct mmc_test_card *test)
1273 ret = mmc_test_set_blksize(test, 512);
1277 return mmc_test_broken_transfer(test, 1, 512, 0);
1280 static int mmc_test_multi_xfersize_write(struct mmc_test_card *test)
1284 if (test->card->host->max_blk_count == 1)
1285 return RESULT_UNSUP_HOST;
1287 ret = mmc_test_set_blksize(test, 512);
1291 return mmc_test_broken_transfer(test, 2, 512, 1);
1294 static int mmc_test_multi_xfersize_read(struct mmc_test_card *test)
1298 if (test->card->host->max_blk_count == 1)
1299 return RESULT_UNSUP_HOST;
1301 ret = mmc_test_set_blksize(test, 512);
1305 return mmc_test_broken_transfer(test, 2, 512, 0);
1308 #ifdef CONFIG_HIGHMEM
1310 static int mmc_test_write_high(struct mmc_test_card *test)
1312 struct scatterlist sg;
1314 sg_init_table(&sg, 1);
1315 sg_set_page(&sg, test->highmem, 512, 0);
1317 return mmc_test_transfer(test, &sg, 1, 0, 1, 512, 1);
1320 static int mmc_test_read_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, 0);
1330 static int mmc_test_multi_write_high(struct mmc_test_card *test)
1333 struct scatterlist sg;
1335 if (test->card->host->max_blk_count == 1)
1336 return RESULT_UNSUP_HOST;
1338 size = PAGE_SIZE * 2;
1339 size = min(size, test->card->host->max_req_size);
1340 size = min(size, test->card->host->max_seg_size);
1341 size = min(size, test->card->host->max_blk_count * 512);
1344 return RESULT_UNSUP_HOST;
1346 sg_init_table(&sg, 1);
1347 sg_set_page(&sg, test->highmem, size, 0);
1349 return mmc_test_transfer(test, &sg, 1, 0, size / 512, 512, 1);
1352 static int mmc_test_multi_read_high(struct mmc_test_card *test)
1355 struct scatterlist sg;
1357 if (test->card->host->max_blk_count == 1)
1358 return RESULT_UNSUP_HOST;
1360 size = PAGE_SIZE * 2;
1361 size = min(size, test->card->host->max_req_size);
1362 size = min(size, test->card->host->max_seg_size);
1363 size = min(size, test->card->host->max_blk_count * 512);
1366 return RESULT_UNSUP_HOST;
1368 sg_init_table(&sg, 1);
1369 sg_set_page(&sg, test->highmem, size, 0);
1371 return mmc_test_transfer(test, &sg, 1, 0, size / 512, 512, 0);
1376 static int mmc_test_no_highmem(struct mmc_test_card *test)
1378 pr_info("%s: Highmem not configured - test skipped\n",
1379 mmc_hostname(test->card->host));
1383 #endif /* CONFIG_HIGHMEM */
1386 * Map sz bytes so that it can be transferred.
1388 static int mmc_test_area_map(struct mmc_test_card *test, unsigned long sz,
1389 int max_scatter, int min_sg_len, bool nonblock)
1391 struct mmc_test_area *t = &test->area;
1393 unsigned int sg_len = 0;
1395 t->blocks = sz >> 9;
1398 err = mmc_test_map_sg_max_scatter(t->mem, sz, t->sg,
1399 t->max_segs, t->max_seg_sz,
1402 err = mmc_test_map_sg(t->mem, sz, t->sg, 1, t->max_segs,
1403 t->max_seg_sz, &t->sg_len, min_sg_len);
1406 if (err || !nonblock)
1410 err = mmc_test_map_sg_max_scatter(t->mem, sz, t->sg_areq,
1411 t->max_segs, t->max_seg_sz,
1414 err = mmc_test_map_sg(t->mem, sz, t->sg_areq, 1, t->max_segs,
1415 t->max_seg_sz, &sg_len, min_sg_len);
1417 if (!err && sg_len != t->sg_len)
1422 pr_info("%s: Failed to map sg list\n",
1423 mmc_hostname(test->card->host));
1428 * Transfer bytes mapped by mmc_test_area_map().
1430 static int mmc_test_area_transfer(struct mmc_test_card *test,
1431 unsigned int dev_addr, int write)
1433 struct mmc_test_area *t = &test->area;
1435 return mmc_test_simple_transfer(test, t->sg, t->sg_len, dev_addr,
1436 t->blocks, 512, write);
1440 * Map and transfer bytes for multiple transfers.
1442 static int mmc_test_area_io_seq(struct mmc_test_card *test, unsigned long sz,
1443 unsigned int dev_addr, int write,
1444 int max_scatter, int timed, int count,
1445 bool nonblock, int min_sg_len)
1447 struct timespec64 ts1, ts2;
1452 * In the case of a maximally scattered transfer, the maximum transfer
1453 * size is further limited by using PAGE_SIZE segments.
1456 struct mmc_test_area *t = &test->area;
1457 unsigned long max_tfr;
1459 if (t->max_seg_sz >= PAGE_SIZE)
1460 max_tfr = t->max_segs * PAGE_SIZE;
1462 max_tfr = t->max_segs * t->max_seg_sz;
1467 ret = mmc_test_area_map(test, sz, max_scatter, min_sg_len, nonblock);
1472 ktime_get_ts64(&ts1);
1474 ret = mmc_test_nonblock_transfer(test, dev_addr, write, count);
1476 for (i = 0; i < count && ret == 0; i++) {
1477 ret = mmc_test_area_transfer(test, dev_addr, write);
1478 dev_addr += sz >> 9;
1485 ktime_get_ts64(&ts2);
1488 mmc_test_print_avg_rate(test, sz, count, &ts1, &ts2);
1493 static int mmc_test_area_io(struct mmc_test_card *test, unsigned long sz,
1494 unsigned int dev_addr, int write, int max_scatter,
1497 return mmc_test_area_io_seq(test, sz, dev_addr, write, max_scatter,
1498 timed, 1, false, 0);
1502 * Write the test area entirely.
1504 static int mmc_test_area_fill(struct mmc_test_card *test)
1506 struct mmc_test_area *t = &test->area;
1508 return mmc_test_area_io(test, t->max_tfr, t->dev_addr, 1, 0, 0);
1512 * Erase the test area entirely.
1514 static int mmc_test_area_erase(struct mmc_test_card *test)
1516 struct mmc_test_area *t = &test->area;
1518 if (!mmc_can_erase(test->card))
1521 return mmc_erase(test->card, t->dev_addr, t->max_sz >> 9,
1526 * Cleanup struct mmc_test_area.
1528 static int mmc_test_area_cleanup(struct mmc_test_card *test)
1530 struct mmc_test_area *t = &test->area;
1534 mmc_test_free_mem(t->mem);
1540 * Initialize an area for testing large transfers. The test area is set to the
1541 * middle of the card because cards may have different characteristics at the
1542 * front (for FAT file system optimization). Optionally, the area is erased
1543 * (if the card supports it) which may improve write performance. Optionally,
1544 * the area is filled with data for subsequent read tests.
1546 static int mmc_test_area_init(struct mmc_test_card *test, int erase, int fill)
1548 struct mmc_test_area *t = &test->area;
1549 unsigned long min_sz = 64 * 1024, sz;
1552 ret = mmc_test_set_blksize(test, 512);
1556 /* Make the test area size about 4MiB */
1557 sz = (unsigned long)test->card->pref_erase << 9;
1559 while (t->max_sz < 4 * 1024 * 1024)
1561 while (t->max_sz > TEST_AREA_MAX_SIZE && t->max_sz > sz)
1564 t->max_segs = test->card->host->max_segs;
1565 t->max_seg_sz = test->card->host->max_seg_size;
1566 t->max_seg_sz -= t->max_seg_sz % 512;
1568 t->max_tfr = t->max_sz;
1569 if (t->max_tfr >> 9 > test->card->host->max_blk_count)
1570 t->max_tfr = test->card->host->max_blk_count << 9;
1571 if (t->max_tfr > test->card->host->max_req_size)
1572 t->max_tfr = test->card->host->max_req_size;
1573 if (t->max_tfr / t->max_seg_sz > t->max_segs)
1574 t->max_tfr = t->max_segs * t->max_seg_sz;
1577 * Try to allocate enough memory for a max. sized transfer. Less is OK
1578 * because the same memory can be mapped into the scatterlist more than
1579 * once. Also, take into account the limits imposed on scatterlist
1580 * segments by the host driver.
1582 t->mem = mmc_test_alloc_mem(min_sz, t->max_tfr, t->max_segs,
1587 t->sg = kmalloc_array(t->max_segs, sizeof(*t->sg), GFP_KERNEL);
1593 t->sg_areq = kmalloc_array(t->max_segs, sizeof(*t->sg_areq),
1600 t->dev_addr = mmc_test_capacity(test->card) / 2;
1601 t->dev_addr -= t->dev_addr % (t->max_sz >> 9);
1604 ret = mmc_test_area_erase(test);
1610 ret = mmc_test_area_fill(test);
1618 mmc_test_area_cleanup(test);
1623 * Prepare for large transfers. Do not erase the test area.
1625 static int mmc_test_area_prepare(struct mmc_test_card *test)
1627 return mmc_test_area_init(test, 0, 0);
1631 * Prepare for large transfers. Do erase the test area.
1633 static int mmc_test_area_prepare_erase(struct mmc_test_card *test)
1635 return mmc_test_area_init(test, 1, 0);
1639 * Prepare for large transfers. Erase and fill the test area.
1641 static int mmc_test_area_prepare_fill(struct mmc_test_card *test)
1643 return mmc_test_area_init(test, 1, 1);
1647 * Test best-case performance. Best-case performance is expected from
1648 * a single large transfer.
1650 * An additional option (max_scatter) allows the measurement of the same
1651 * transfer but with no contiguous pages in the scatter list. This tests
1652 * the efficiency of DMA to handle scattered pages.
1654 static int mmc_test_best_performance(struct mmc_test_card *test, int write,
1657 struct mmc_test_area *t = &test->area;
1659 return mmc_test_area_io(test, t->max_tfr, t->dev_addr, write,
1664 * Best-case read performance.
1666 static int mmc_test_best_read_performance(struct mmc_test_card *test)
1668 return mmc_test_best_performance(test, 0, 0);
1672 * Best-case write performance.
1674 static int mmc_test_best_write_performance(struct mmc_test_card *test)
1676 return mmc_test_best_performance(test, 1, 0);
1680 * Best-case read performance into scattered pages.
1682 static int mmc_test_best_read_perf_max_scatter(struct mmc_test_card *test)
1684 return mmc_test_best_performance(test, 0, 1);
1688 * Best-case write performance from scattered pages.
1690 static int mmc_test_best_write_perf_max_scatter(struct mmc_test_card *test)
1692 return mmc_test_best_performance(test, 1, 1);
1696 * Single read performance by transfer size.
1698 static int mmc_test_profile_read_perf(struct mmc_test_card *test)
1700 struct mmc_test_area *t = &test->area;
1702 unsigned int dev_addr;
1705 for (sz = 512; sz < t->max_tfr; sz <<= 1) {
1706 dev_addr = t->dev_addr + (sz >> 9);
1707 ret = mmc_test_area_io(test, sz, dev_addr, 0, 0, 1);
1712 dev_addr = t->dev_addr;
1713 return mmc_test_area_io(test, sz, dev_addr, 0, 0, 1);
1717 * Single write performance by transfer size.
1719 static int mmc_test_profile_write_perf(struct mmc_test_card *test)
1721 struct mmc_test_area *t = &test->area;
1723 unsigned int dev_addr;
1726 ret = mmc_test_area_erase(test);
1729 for (sz = 512; sz < t->max_tfr; sz <<= 1) {
1730 dev_addr = t->dev_addr + (sz >> 9);
1731 ret = mmc_test_area_io(test, sz, dev_addr, 1, 0, 1);
1735 ret = mmc_test_area_erase(test);
1739 dev_addr = t->dev_addr;
1740 return mmc_test_area_io(test, sz, dev_addr, 1, 0, 1);
1744 * Single trim performance by transfer size.
1746 static int mmc_test_profile_trim_perf(struct mmc_test_card *test)
1748 struct mmc_test_area *t = &test->area;
1750 unsigned int dev_addr;
1751 struct timespec64 ts1, ts2;
1754 if (!mmc_can_trim(test->card))
1755 return RESULT_UNSUP_CARD;
1757 if (!mmc_can_erase(test->card))
1758 return RESULT_UNSUP_HOST;
1760 for (sz = 512; sz < t->max_sz; sz <<= 1) {
1761 dev_addr = t->dev_addr + (sz >> 9);
1762 ktime_get_ts64(&ts1);
1763 ret = mmc_erase(test->card, dev_addr, sz >> 9, MMC_TRIM_ARG);
1766 ktime_get_ts64(&ts2);
1767 mmc_test_print_rate(test, sz, &ts1, &ts2);
1769 dev_addr = t->dev_addr;
1770 ktime_get_ts64(&ts1);
1771 ret = mmc_erase(test->card, dev_addr, sz >> 9, MMC_TRIM_ARG);
1774 ktime_get_ts64(&ts2);
1775 mmc_test_print_rate(test, sz, &ts1, &ts2);
1779 static int mmc_test_seq_read_perf(struct mmc_test_card *test, unsigned long sz)
1781 struct mmc_test_area *t = &test->area;
1782 unsigned int dev_addr, i, cnt;
1783 struct timespec64 ts1, ts2;
1786 cnt = t->max_sz / sz;
1787 dev_addr = t->dev_addr;
1788 ktime_get_ts64(&ts1);
1789 for (i = 0; i < cnt; i++) {
1790 ret = mmc_test_area_io(test, sz, dev_addr, 0, 0, 0);
1793 dev_addr += (sz >> 9);
1795 ktime_get_ts64(&ts2);
1796 mmc_test_print_avg_rate(test, sz, cnt, &ts1, &ts2);
1801 * Consecutive read performance by transfer size.
1803 static int mmc_test_profile_seq_read_perf(struct mmc_test_card *test)
1805 struct mmc_test_area *t = &test->area;
1809 for (sz = 512; sz < t->max_tfr; sz <<= 1) {
1810 ret = mmc_test_seq_read_perf(test, sz);
1815 return mmc_test_seq_read_perf(test, sz);
1818 static int mmc_test_seq_write_perf(struct mmc_test_card *test, unsigned long sz)
1820 struct mmc_test_area *t = &test->area;
1821 unsigned int dev_addr, i, cnt;
1822 struct timespec64 ts1, ts2;
1825 ret = mmc_test_area_erase(test);
1828 cnt = t->max_sz / sz;
1829 dev_addr = t->dev_addr;
1830 ktime_get_ts64(&ts1);
1831 for (i = 0; i < cnt; i++) {
1832 ret = mmc_test_area_io(test, sz, dev_addr, 1, 0, 0);
1835 dev_addr += (sz >> 9);
1837 ktime_get_ts64(&ts2);
1838 mmc_test_print_avg_rate(test, sz, cnt, &ts1, &ts2);
1843 * Consecutive write performance by transfer size.
1845 static int mmc_test_profile_seq_write_perf(struct mmc_test_card *test)
1847 struct mmc_test_area *t = &test->area;
1851 for (sz = 512; sz < t->max_tfr; sz <<= 1) {
1852 ret = mmc_test_seq_write_perf(test, sz);
1857 return mmc_test_seq_write_perf(test, sz);
1861 * Consecutive trim performance by transfer size.
1863 static int mmc_test_profile_seq_trim_perf(struct mmc_test_card *test)
1865 struct mmc_test_area *t = &test->area;
1867 unsigned int dev_addr, i, cnt;
1868 struct timespec64 ts1, ts2;
1871 if (!mmc_can_trim(test->card))
1872 return RESULT_UNSUP_CARD;
1874 if (!mmc_can_erase(test->card))
1875 return RESULT_UNSUP_HOST;
1877 for (sz = 512; sz <= t->max_sz; sz <<= 1) {
1878 ret = mmc_test_area_erase(test);
1881 ret = mmc_test_area_fill(test);
1884 cnt = t->max_sz / sz;
1885 dev_addr = t->dev_addr;
1886 ktime_get_ts64(&ts1);
1887 for (i = 0; i < cnt; i++) {
1888 ret = mmc_erase(test->card, dev_addr, sz >> 9,
1892 dev_addr += (sz >> 9);
1894 ktime_get_ts64(&ts2);
1895 mmc_test_print_avg_rate(test, sz, cnt, &ts1, &ts2);
1900 static unsigned int rnd_next = 1;
1902 static unsigned int mmc_test_rnd_num(unsigned int rnd_cnt)
1906 rnd_next = rnd_next * 1103515245 + 12345;
1907 r = (rnd_next >> 16) & 0x7fff;
1908 return (r * rnd_cnt) >> 15;
1911 static int mmc_test_rnd_perf(struct mmc_test_card *test, int write, int print,
1914 unsigned int dev_addr, cnt, rnd_addr, range1, range2, last_ea = 0, ea;
1916 struct timespec64 ts1, ts2, ts;
1921 rnd_addr = mmc_test_capacity(test->card) / 4;
1922 range1 = rnd_addr / test->card->pref_erase;
1923 range2 = range1 / ssz;
1925 ktime_get_ts64(&ts1);
1926 for (cnt = 0; cnt < UINT_MAX; cnt++) {
1927 ktime_get_ts64(&ts2);
1928 ts = timespec64_sub(ts2, ts1);
1929 if (ts.tv_sec >= 10)
1931 ea = mmc_test_rnd_num(range1);
1935 dev_addr = rnd_addr + test->card->pref_erase * ea +
1936 ssz * mmc_test_rnd_num(range2);
1937 ret = mmc_test_area_io(test, sz, dev_addr, write, 0, 0);
1942 mmc_test_print_avg_rate(test, sz, cnt, &ts1, &ts2);
1946 static int mmc_test_random_perf(struct mmc_test_card *test, int write)
1948 struct mmc_test_area *t = &test->area;
1953 for (sz = 512; sz < t->max_tfr; sz <<= 1) {
1955 * When writing, try to get more consistent results by running
1956 * the test twice with exactly the same I/O but outputting the
1957 * results only for the 2nd run.
1961 ret = mmc_test_rnd_perf(test, write, 0, sz);
1966 ret = mmc_test_rnd_perf(test, write, 1, sz);
1973 ret = mmc_test_rnd_perf(test, write, 0, sz);
1978 return mmc_test_rnd_perf(test, write, 1, sz);
1982 * Random read performance by transfer size.
1984 static int mmc_test_random_read_perf(struct mmc_test_card *test)
1986 return mmc_test_random_perf(test, 0);
1990 * Random write performance by transfer size.
1992 static int mmc_test_random_write_perf(struct mmc_test_card *test)
1994 return mmc_test_random_perf(test, 1);
1997 static int mmc_test_seq_perf(struct mmc_test_card *test, int write,
1998 unsigned int tot_sz, int max_scatter)
2000 struct mmc_test_area *t = &test->area;
2001 unsigned int dev_addr, i, cnt, sz, ssz;
2002 struct timespec64 ts1, ts2;
2008 * In the case of a maximally scattered transfer, the maximum transfer
2009 * size is further limited by using PAGE_SIZE segments.
2012 unsigned long max_tfr;
2014 if (t->max_seg_sz >= PAGE_SIZE)
2015 max_tfr = t->max_segs * PAGE_SIZE;
2017 max_tfr = t->max_segs * t->max_seg_sz;
2023 dev_addr = mmc_test_capacity(test->card) / 4;
2024 if (tot_sz > dev_addr << 9)
2025 tot_sz = dev_addr << 9;
2027 dev_addr &= 0xffff0000; /* Round to 64MiB boundary */
2029 ktime_get_ts64(&ts1);
2030 for (i = 0; i < cnt; i++) {
2031 ret = mmc_test_area_io(test, sz, dev_addr, write,
2037 ktime_get_ts64(&ts2);
2039 mmc_test_print_avg_rate(test, sz, cnt, &ts1, &ts2);
2044 static int mmc_test_large_seq_perf(struct mmc_test_card *test, int write)
2048 for (i = 0; i < 10; i++) {
2049 ret = mmc_test_seq_perf(test, write, 10 * 1024 * 1024, 1);
2053 for (i = 0; i < 5; i++) {
2054 ret = mmc_test_seq_perf(test, write, 100 * 1024 * 1024, 1);
2058 for (i = 0; i < 3; i++) {
2059 ret = mmc_test_seq_perf(test, write, 1000 * 1024 * 1024, 1);
2068 * Large sequential read performance.
2070 static int mmc_test_large_seq_read_perf(struct mmc_test_card *test)
2072 return mmc_test_large_seq_perf(test, 0);
2076 * Large sequential write performance.
2078 static int mmc_test_large_seq_write_perf(struct mmc_test_card *test)
2080 return mmc_test_large_seq_perf(test, 1);
2083 static int mmc_test_rw_multiple(struct mmc_test_card *test,
2084 struct mmc_test_multiple_rw *tdata,
2085 unsigned int reqsize, unsigned int size,
2088 unsigned int dev_addr;
2089 struct mmc_test_area *t = &test->area;
2092 /* Set up test area */
2093 if (size > mmc_test_capacity(test->card) / 2 * 512)
2094 size = mmc_test_capacity(test->card) / 2 * 512;
2095 if (reqsize > t->max_tfr)
2096 reqsize = t->max_tfr;
2097 dev_addr = mmc_test_capacity(test->card) / 4;
2098 if ((dev_addr & 0xffff0000))
2099 dev_addr &= 0xffff0000; /* Round to 64MiB boundary */
2101 dev_addr &= 0xfffff800; /* Round to 1MiB boundary */
2108 /* prepare test area */
2109 if (mmc_can_erase(test->card) &&
2110 tdata->prepare & MMC_TEST_PREP_ERASE) {
2111 ret = mmc_erase(test->card, dev_addr,
2112 size / 512, test->card->erase_arg);
2114 ret = mmc_erase(test->card, dev_addr,
2115 size / 512, MMC_ERASE_ARG);
2121 ret = mmc_test_area_io_seq(test, reqsize, dev_addr,
2122 tdata->do_write, 0, 1, size / reqsize,
2123 tdata->do_nonblock_req, min_sg_len);
2129 pr_info("[%s] error\n", __func__);
2133 static int mmc_test_rw_multiple_size(struct mmc_test_card *test,
2134 struct mmc_test_multiple_rw *rw)
2138 void *pre_req = test->card->host->ops->pre_req;
2139 void *post_req = test->card->host->ops->post_req;
2141 if (rw->do_nonblock_req &&
2142 ((!pre_req && post_req) || (pre_req && !post_req))) {
2143 pr_info("error: only one of pre/post is defined\n");
2147 for (i = 0 ; i < rw->len && ret == 0; i++) {
2148 ret = mmc_test_rw_multiple(test, rw, rw->bs[i], rw->size, 0);
2155 static int mmc_test_rw_multiple_sg_len(struct mmc_test_card *test,
2156 struct mmc_test_multiple_rw *rw)
2161 for (i = 0 ; i < rw->len && ret == 0; i++) {
2162 ret = mmc_test_rw_multiple(test, rw, 512 * 1024, rw->size,
2171 * Multiple blocking write 4k to 4 MB chunks
2173 static int mmc_test_profile_mult_write_blocking_perf(struct mmc_test_card *test)
2175 unsigned int bs[] = {1 << 12, 1 << 13, 1 << 14, 1 << 15, 1 << 16,
2176 1 << 17, 1 << 18, 1 << 19, 1 << 20, 1 << 22};
2177 struct mmc_test_multiple_rw test_data = {
2179 .size = TEST_AREA_MAX_SIZE,
2180 .len = ARRAY_SIZE(bs),
2182 .do_nonblock_req = false,
2183 .prepare = MMC_TEST_PREP_ERASE,
2186 return mmc_test_rw_multiple_size(test, &test_data);
2190 * Multiple non-blocking write 4k to 4 MB chunks
2192 static int mmc_test_profile_mult_write_nonblock_perf(struct mmc_test_card *test)
2194 unsigned int bs[] = {1 << 12, 1 << 13, 1 << 14, 1 << 15, 1 << 16,
2195 1 << 17, 1 << 18, 1 << 19, 1 << 20, 1 << 22};
2196 struct mmc_test_multiple_rw test_data = {
2198 .size = TEST_AREA_MAX_SIZE,
2199 .len = ARRAY_SIZE(bs),
2201 .do_nonblock_req = true,
2202 .prepare = MMC_TEST_PREP_ERASE,
2205 return mmc_test_rw_multiple_size(test, &test_data);
2209 * Multiple blocking read 4k to 4 MB chunks
2211 static int mmc_test_profile_mult_read_blocking_perf(struct mmc_test_card *test)
2213 unsigned int bs[] = {1 << 12, 1 << 13, 1 << 14, 1 << 15, 1 << 16,
2214 1 << 17, 1 << 18, 1 << 19, 1 << 20, 1 << 22};
2215 struct mmc_test_multiple_rw test_data = {
2217 .size = TEST_AREA_MAX_SIZE,
2218 .len = ARRAY_SIZE(bs),
2220 .do_nonblock_req = false,
2221 .prepare = MMC_TEST_PREP_NONE,
2224 return mmc_test_rw_multiple_size(test, &test_data);
2228 * Multiple non-blocking read 4k to 4 MB chunks
2230 static int mmc_test_profile_mult_read_nonblock_perf(struct mmc_test_card *test)
2232 unsigned int bs[] = {1 << 12, 1 << 13, 1 << 14, 1 << 15, 1 << 16,
2233 1 << 17, 1 << 18, 1 << 19, 1 << 20, 1 << 22};
2234 struct mmc_test_multiple_rw test_data = {
2236 .size = TEST_AREA_MAX_SIZE,
2237 .len = ARRAY_SIZE(bs),
2239 .do_nonblock_req = true,
2240 .prepare = MMC_TEST_PREP_NONE,
2243 return mmc_test_rw_multiple_size(test, &test_data);
2247 * Multiple blocking write 1 to 512 sg elements
2249 static int mmc_test_profile_sglen_wr_blocking_perf(struct mmc_test_card *test)
2251 unsigned int sg_len[] = {1, 1 << 3, 1 << 4, 1 << 5, 1 << 6,
2252 1 << 7, 1 << 8, 1 << 9};
2253 struct mmc_test_multiple_rw test_data = {
2255 .size = TEST_AREA_MAX_SIZE,
2256 .len = ARRAY_SIZE(sg_len),
2258 .do_nonblock_req = false,
2259 .prepare = MMC_TEST_PREP_ERASE,
2262 return mmc_test_rw_multiple_sg_len(test, &test_data);
2266 * Multiple non-blocking write 1 to 512 sg elements
2268 static int mmc_test_profile_sglen_wr_nonblock_perf(struct mmc_test_card *test)
2270 unsigned int sg_len[] = {1, 1 << 3, 1 << 4, 1 << 5, 1 << 6,
2271 1 << 7, 1 << 8, 1 << 9};
2272 struct mmc_test_multiple_rw test_data = {
2274 .size = TEST_AREA_MAX_SIZE,
2275 .len = ARRAY_SIZE(sg_len),
2277 .do_nonblock_req = true,
2278 .prepare = MMC_TEST_PREP_ERASE,
2281 return mmc_test_rw_multiple_sg_len(test, &test_data);
2285 * Multiple blocking read 1 to 512 sg elements
2287 static int mmc_test_profile_sglen_r_blocking_perf(struct mmc_test_card *test)
2289 unsigned int sg_len[] = {1, 1 << 3, 1 << 4, 1 << 5, 1 << 6,
2290 1 << 7, 1 << 8, 1 << 9};
2291 struct mmc_test_multiple_rw test_data = {
2293 .size = TEST_AREA_MAX_SIZE,
2294 .len = ARRAY_SIZE(sg_len),
2296 .do_nonblock_req = false,
2297 .prepare = MMC_TEST_PREP_NONE,
2300 return mmc_test_rw_multiple_sg_len(test, &test_data);
2304 * Multiple non-blocking read 1 to 512 sg elements
2306 static int mmc_test_profile_sglen_r_nonblock_perf(struct mmc_test_card *test)
2308 unsigned int sg_len[] = {1, 1 << 3, 1 << 4, 1 << 5, 1 << 6,
2309 1 << 7, 1 << 8, 1 << 9};
2310 struct mmc_test_multiple_rw test_data = {
2312 .size = TEST_AREA_MAX_SIZE,
2313 .len = ARRAY_SIZE(sg_len),
2315 .do_nonblock_req = true,
2316 .prepare = MMC_TEST_PREP_NONE,
2319 return mmc_test_rw_multiple_sg_len(test, &test_data);
2323 * eMMC hardware reset.
2325 static int mmc_test_reset(struct mmc_test_card *test)
2327 struct mmc_card *card = test->card;
2328 struct mmc_host *host = card->host;
2331 err = mmc_hw_reset(host);
2334 * Reset will re-enable the card's command queue, but tests
2335 * expect it to be disabled.
2337 if (card->ext_csd.cmdq_en)
2338 mmc_cmdq_disable(card);
2340 } else if (err == -EOPNOTSUPP) {
2341 return RESULT_UNSUP_HOST;
2347 static int mmc_test_send_status(struct mmc_test_card *test,
2348 struct mmc_command *cmd)
2350 memset(cmd, 0, sizeof(*cmd));
2352 cmd->opcode = MMC_SEND_STATUS;
2353 if (!mmc_host_is_spi(test->card->host))
2354 cmd->arg = test->card->rca << 16;
2355 cmd->flags = MMC_RSP_SPI_R2 | MMC_RSP_R1 | MMC_CMD_AC;
2357 return mmc_wait_for_cmd(test->card->host, cmd, 0);
2360 static int mmc_test_ongoing_transfer(struct mmc_test_card *test,
2361 unsigned int dev_addr, int use_sbc,
2362 int repeat_cmd, int write, int use_areq)
2364 struct mmc_test_req *rq = mmc_test_req_alloc();
2365 struct mmc_host *host = test->card->host;
2366 struct mmc_test_area *t = &test->area;
2367 struct mmc_request *mrq;
2368 unsigned long timeout;
2369 bool expired = false;
2370 int ret = 0, cmd_ret;
2379 mrq->sbc = &rq->sbc;
2380 mrq->cap_cmd_during_tfr = true;
2382 mmc_test_prepare_mrq(test, mrq, t->sg, t->sg_len, dev_addr, t->blocks,
2385 if (use_sbc && t->blocks > 1 && !mrq->sbc) {
2386 ret = mmc_host_cmd23(host) ?
2392 /* Start ongoing data request */
2394 ret = mmc_test_start_areq(test, mrq, NULL);
2398 mmc_wait_for_req(host, mrq);
2401 timeout = jiffies + msecs_to_jiffies(3000);
2405 /* Send status command while data transfer in progress */
2406 cmd_ret = mmc_test_send_status(test, &rq->status);
2410 status = rq->status.resp[0];
2411 if (status & R1_ERROR) {
2416 if (mmc_is_req_done(host, mrq))
2419 expired = time_after(jiffies, timeout);
2421 pr_info("%s: timeout waiting for Tran state status %#x\n",
2422 mmc_hostname(host), status);
2423 cmd_ret = -ETIMEDOUT;
2426 } while (repeat_cmd && R1_CURRENT_STATE(status) != R1_STATE_TRAN);
2428 /* Wait for data request to complete */
2430 ret = mmc_test_start_areq(test, NULL, mrq);
2432 mmc_wait_for_req_done(test->card->host, mrq);
2436 * For cap_cmd_during_tfr request, upper layer must send stop if
2439 if (mrq->data->stop && (mrq->data->error || !mrq->sbc)) {
2441 mmc_wait_for_cmd(host, mrq->data->stop, 0);
2443 ret = mmc_wait_for_cmd(host, mrq->data->stop, 0);
2450 pr_info("%s: Send Status failed: status %#x, error %d\n",
2451 mmc_hostname(test->card->host), status, cmd_ret);
2454 ret = mmc_test_check_result(test, mrq);
2458 ret = mmc_test_wait_busy(test);
2462 if (repeat_cmd && (t->blocks + 1) << 9 > t->max_tfr)
2463 pr_info("%s: %d commands completed during transfer of %u blocks\n",
2464 mmc_hostname(test->card->host), count, t->blocks);
2474 static int __mmc_test_cmds_during_tfr(struct mmc_test_card *test,
2475 unsigned long sz, int use_sbc, int write,
2478 struct mmc_test_area *t = &test->area;
2481 if (!(test->card->host->caps & MMC_CAP_CMD_DURING_TFR))
2482 return RESULT_UNSUP_HOST;
2484 ret = mmc_test_area_map(test, sz, 0, 0, use_areq);
2488 ret = mmc_test_ongoing_transfer(test, t->dev_addr, use_sbc, 0, write,
2493 return mmc_test_ongoing_transfer(test, t->dev_addr, use_sbc, 1, write,
2497 static int mmc_test_cmds_during_tfr(struct mmc_test_card *test, int use_sbc,
2498 int write, int use_areq)
2500 struct mmc_test_area *t = &test->area;
2504 for (sz = 512; sz <= t->max_tfr; sz += 512) {
2505 ret = __mmc_test_cmds_during_tfr(test, sz, use_sbc, write,
2514 * Commands during read - no Set Block Count (CMD23).
2516 static int mmc_test_cmds_during_read(struct mmc_test_card *test)
2518 return mmc_test_cmds_during_tfr(test, 0, 0, 0);
2522 * Commands during write - no Set Block Count (CMD23).
2524 static int mmc_test_cmds_during_write(struct mmc_test_card *test)
2526 return mmc_test_cmds_during_tfr(test, 0, 1, 0);
2530 * Commands during read - use Set Block Count (CMD23).
2532 static int mmc_test_cmds_during_read_cmd23(struct mmc_test_card *test)
2534 return mmc_test_cmds_during_tfr(test, 1, 0, 0);
2538 * Commands during write - use Set Block Count (CMD23).
2540 static int mmc_test_cmds_during_write_cmd23(struct mmc_test_card *test)
2542 return mmc_test_cmds_during_tfr(test, 1, 1, 0);
2546 * Commands during non-blocking read - use Set Block Count (CMD23).
2548 static int mmc_test_cmds_during_read_cmd23_nonblock(struct mmc_test_card *test)
2550 return mmc_test_cmds_during_tfr(test, 1, 0, 1);
2554 * Commands during non-blocking write - use Set Block Count (CMD23).
2556 static int mmc_test_cmds_during_write_cmd23_nonblock(struct mmc_test_card *test)
2558 return mmc_test_cmds_during_tfr(test, 1, 1, 1);
2561 static const struct mmc_test_case mmc_test_cases[] = {
2563 .name = "Basic write (no data verification)",
2564 .run = mmc_test_basic_write,
2568 .name = "Basic read (no data verification)",
2569 .run = mmc_test_basic_read,
2573 .name = "Basic write (with data verification)",
2574 .prepare = mmc_test_prepare_write,
2575 .run = mmc_test_verify_write,
2576 .cleanup = mmc_test_cleanup,
2580 .name = "Basic read (with data verification)",
2581 .prepare = mmc_test_prepare_read,
2582 .run = mmc_test_verify_read,
2583 .cleanup = mmc_test_cleanup,
2587 .name = "Multi-block write",
2588 .prepare = mmc_test_prepare_write,
2589 .run = mmc_test_multi_write,
2590 .cleanup = mmc_test_cleanup,
2594 .name = "Multi-block read",
2595 .prepare = mmc_test_prepare_read,
2596 .run = mmc_test_multi_read,
2597 .cleanup = mmc_test_cleanup,
2601 .name = "Power of two block writes",
2602 .prepare = mmc_test_prepare_write,
2603 .run = mmc_test_pow2_write,
2604 .cleanup = mmc_test_cleanup,
2608 .name = "Power of two block reads",
2609 .prepare = mmc_test_prepare_read,
2610 .run = mmc_test_pow2_read,
2611 .cleanup = mmc_test_cleanup,
2615 .name = "Weird sized block writes",
2616 .prepare = mmc_test_prepare_write,
2617 .run = mmc_test_weird_write,
2618 .cleanup = mmc_test_cleanup,
2622 .name = "Weird sized block reads",
2623 .prepare = mmc_test_prepare_read,
2624 .run = mmc_test_weird_read,
2625 .cleanup = mmc_test_cleanup,
2629 .name = "Badly aligned write",
2630 .prepare = mmc_test_prepare_write,
2631 .run = mmc_test_align_write,
2632 .cleanup = mmc_test_cleanup,
2636 .name = "Badly aligned read",
2637 .prepare = mmc_test_prepare_read,
2638 .run = mmc_test_align_read,
2639 .cleanup = mmc_test_cleanup,
2643 .name = "Badly aligned multi-block write",
2644 .prepare = mmc_test_prepare_write,
2645 .run = mmc_test_align_multi_write,
2646 .cleanup = mmc_test_cleanup,
2650 .name = "Badly aligned multi-block read",
2651 .prepare = mmc_test_prepare_read,
2652 .run = mmc_test_align_multi_read,
2653 .cleanup = mmc_test_cleanup,
2657 .name = "Proper xfer_size at write (start failure)",
2658 .run = mmc_test_xfersize_write,
2662 .name = "Proper xfer_size at read (start failure)",
2663 .run = mmc_test_xfersize_read,
2667 .name = "Proper xfer_size at write (midway failure)",
2668 .run = mmc_test_multi_xfersize_write,
2672 .name = "Proper xfer_size at read (midway failure)",
2673 .run = mmc_test_multi_xfersize_read,
2676 #ifdef CONFIG_HIGHMEM
2679 .name = "Highmem write",
2680 .prepare = mmc_test_prepare_write,
2681 .run = mmc_test_write_high,
2682 .cleanup = mmc_test_cleanup,
2686 .name = "Highmem read",
2687 .prepare = mmc_test_prepare_read,
2688 .run = mmc_test_read_high,
2689 .cleanup = mmc_test_cleanup,
2693 .name = "Multi-block highmem write",
2694 .prepare = mmc_test_prepare_write,
2695 .run = mmc_test_multi_write_high,
2696 .cleanup = mmc_test_cleanup,
2700 .name = "Multi-block highmem read",
2701 .prepare = mmc_test_prepare_read,
2702 .run = mmc_test_multi_read_high,
2703 .cleanup = mmc_test_cleanup,
2709 .name = "Highmem write",
2710 .run = mmc_test_no_highmem,
2714 .name = "Highmem read",
2715 .run = mmc_test_no_highmem,
2719 .name = "Multi-block highmem write",
2720 .run = mmc_test_no_highmem,
2724 .name = "Multi-block highmem read",
2725 .run = mmc_test_no_highmem,
2728 #endif /* CONFIG_HIGHMEM */
2731 .name = "Best-case read performance",
2732 .prepare = mmc_test_area_prepare_fill,
2733 .run = mmc_test_best_read_performance,
2734 .cleanup = mmc_test_area_cleanup,
2738 .name = "Best-case write performance",
2739 .prepare = mmc_test_area_prepare_erase,
2740 .run = mmc_test_best_write_performance,
2741 .cleanup = mmc_test_area_cleanup,
2745 .name = "Best-case read performance into scattered pages",
2746 .prepare = mmc_test_area_prepare_fill,
2747 .run = mmc_test_best_read_perf_max_scatter,
2748 .cleanup = mmc_test_area_cleanup,
2752 .name = "Best-case write performance from scattered pages",
2753 .prepare = mmc_test_area_prepare_erase,
2754 .run = mmc_test_best_write_perf_max_scatter,
2755 .cleanup = mmc_test_area_cleanup,
2759 .name = "Single read performance by transfer size",
2760 .prepare = mmc_test_area_prepare_fill,
2761 .run = mmc_test_profile_read_perf,
2762 .cleanup = mmc_test_area_cleanup,
2766 .name = "Single write performance by transfer size",
2767 .prepare = mmc_test_area_prepare,
2768 .run = mmc_test_profile_write_perf,
2769 .cleanup = mmc_test_area_cleanup,
2773 .name = "Single trim performance by transfer size",
2774 .prepare = mmc_test_area_prepare_fill,
2775 .run = mmc_test_profile_trim_perf,
2776 .cleanup = mmc_test_area_cleanup,
2780 .name = "Consecutive read performance by transfer size",
2781 .prepare = mmc_test_area_prepare_fill,
2782 .run = mmc_test_profile_seq_read_perf,
2783 .cleanup = mmc_test_area_cleanup,
2787 .name = "Consecutive write performance by transfer size",
2788 .prepare = mmc_test_area_prepare,
2789 .run = mmc_test_profile_seq_write_perf,
2790 .cleanup = mmc_test_area_cleanup,
2794 .name = "Consecutive trim performance by transfer size",
2795 .prepare = mmc_test_area_prepare,
2796 .run = mmc_test_profile_seq_trim_perf,
2797 .cleanup = mmc_test_area_cleanup,
2801 .name = "Random read performance by transfer size",
2802 .prepare = mmc_test_area_prepare,
2803 .run = mmc_test_random_read_perf,
2804 .cleanup = mmc_test_area_cleanup,
2808 .name = "Random write performance by transfer size",
2809 .prepare = mmc_test_area_prepare,
2810 .run = mmc_test_random_write_perf,
2811 .cleanup = mmc_test_area_cleanup,
2815 .name = "Large sequential read into scattered pages",
2816 .prepare = mmc_test_area_prepare,
2817 .run = mmc_test_large_seq_read_perf,
2818 .cleanup = mmc_test_area_cleanup,
2822 .name = "Large sequential write from scattered pages",
2823 .prepare = mmc_test_area_prepare,
2824 .run = mmc_test_large_seq_write_perf,
2825 .cleanup = mmc_test_area_cleanup,
2829 .name = "Write performance with blocking req 4k to 4MB",
2830 .prepare = mmc_test_area_prepare,
2831 .run = mmc_test_profile_mult_write_blocking_perf,
2832 .cleanup = mmc_test_area_cleanup,
2836 .name = "Write performance with non-blocking req 4k to 4MB",
2837 .prepare = mmc_test_area_prepare,
2838 .run = mmc_test_profile_mult_write_nonblock_perf,
2839 .cleanup = mmc_test_area_cleanup,
2843 .name = "Read performance with blocking req 4k to 4MB",
2844 .prepare = mmc_test_area_prepare,
2845 .run = mmc_test_profile_mult_read_blocking_perf,
2846 .cleanup = mmc_test_area_cleanup,
2850 .name = "Read performance with non-blocking req 4k to 4MB",
2851 .prepare = mmc_test_area_prepare,
2852 .run = mmc_test_profile_mult_read_nonblock_perf,
2853 .cleanup = mmc_test_area_cleanup,
2857 .name = "Write performance blocking req 1 to 512 sg elems",
2858 .prepare = mmc_test_area_prepare,
2859 .run = mmc_test_profile_sglen_wr_blocking_perf,
2860 .cleanup = mmc_test_area_cleanup,
2864 .name = "Write performance non-blocking req 1 to 512 sg elems",
2865 .prepare = mmc_test_area_prepare,
2866 .run = mmc_test_profile_sglen_wr_nonblock_perf,
2867 .cleanup = mmc_test_area_cleanup,
2871 .name = "Read performance blocking req 1 to 512 sg elems",
2872 .prepare = mmc_test_area_prepare,
2873 .run = mmc_test_profile_sglen_r_blocking_perf,
2874 .cleanup = mmc_test_area_cleanup,
2878 .name = "Read performance non-blocking req 1 to 512 sg elems",
2879 .prepare = mmc_test_area_prepare,
2880 .run = mmc_test_profile_sglen_r_nonblock_perf,
2881 .cleanup = mmc_test_area_cleanup,
2885 .name = "Reset test",
2886 .run = mmc_test_reset,
2890 .name = "Commands during read - no Set Block Count (CMD23)",
2891 .prepare = mmc_test_area_prepare,
2892 .run = mmc_test_cmds_during_read,
2893 .cleanup = mmc_test_area_cleanup,
2897 .name = "Commands during write - no Set Block Count (CMD23)",
2898 .prepare = mmc_test_area_prepare,
2899 .run = mmc_test_cmds_during_write,
2900 .cleanup = mmc_test_area_cleanup,
2904 .name = "Commands during read - use Set Block Count (CMD23)",
2905 .prepare = mmc_test_area_prepare,
2906 .run = mmc_test_cmds_during_read_cmd23,
2907 .cleanup = mmc_test_area_cleanup,
2911 .name = "Commands during write - use Set Block Count (CMD23)",
2912 .prepare = mmc_test_area_prepare,
2913 .run = mmc_test_cmds_during_write_cmd23,
2914 .cleanup = mmc_test_area_cleanup,
2918 .name = "Commands during non-blocking read - use Set Block Count (CMD23)",
2919 .prepare = mmc_test_area_prepare,
2920 .run = mmc_test_cmds_during_read_cmd23_nonblock,
2921 .cleanup = mmc_test_area_cleanup,
2925 .name = "Commands during non-blocking write - use Set Block Count (CMD23)",
2926 .prepare = mmc_test_area_prepare,
2927 .run = mmc_test_cmds_during_write_cmd23_nonblock,
2928 .cleanup = mmc_test_area_cleanup,
2932 static DEFINE_MUTEX(mmc_test_lock);
2934 static LIST_HEAD(mmc_test_result);
2936 static void mmc_test_run(struct mmc_test_card *test, int testcase)
2940 pr_info("%s: Starting tests of card %s...\n",
2941 mmc_hostname(test->card->host), mmc_card_id(test->card));
2943 mmc_claim_host(test->card->host);
2945 for (i = 0; i < ARRAY_SIZE(mmc_test_cases); i++) {
2946 struct mmc_test_general_result *gr;
2948 if (testcase && ((i + 1) != testcase))
2951 pr_info("%s: Test case %d. %s...\n",
2952 mmc_hostname(test->card->host), i + 1,
2953 mmc_test_cases[i].name);
2955 if (mmc_test_cases[i].prepare) {
2956 ret = mmc_test_cases[i].prepare(test);
2958 pr_info("%s: Result: Prepare stage failed! (%d)\n",
2959 mmc_hostname(test->card->host),
2965 gr = kzalloc(sizeof(*gr), GFP_KERNEL);
2967 INIT_LIST_HEAD(&gr->tr_lst);
2969 /* Assign data what we know already */
2970 gr->card = test->card;
2973 /* Append container to global one */
2974 list_add_tail(&gr->link, &mmc_test_result);
2977 * Save the pointer to created container in our private
2983 ret = mmc_test_cases[i].run(test);
2986 pr_info("%s: Result: OK\n",
2987 mmc_hostname(test->card->host));
2990 pr_info("%s: Result: FAILED\n",
2991 mmc_hostname(test->card->host));
2993 case RESULT_UNSUP_HOST:
2994 pr_info("%s: Result: UNSUPPORTED (by host)\n",
2995 mmc_hostname(test->card->host));
2997 case RESULT_UNSUP_CARD:
2998 pr_info("%s: Result: UNSUPPORTED (by card)\n",
2999 mmc_hostname(test->card->host));
3002 pr_info("%s: Result: ERROR (%d)\n",
3003 mmc_hostname(test->card->host), ret);
3006 /* Save the result */
3010 if (mmc_test_cases[i].cleanup) {
3011 ret = mmc_test_cases[i].cleanup(test);
3013 pr_info("%s: Warning: Cleanup stage failed! (%d)\n",
3014 mmc_hostname(test->card->host),
3020 mmc_release_host(test->card->host);
3022 pr_info("%s: Tests completed.\n",
3023 mmc_hostname(test->card->host));
3026 static void mmc_test_free_result(struct mmc_card *card)
3028 struct mmc_test_general_result *gr, *grs;
3030 mutex_lock(&mmc_test_lock);
3032 list_for_each_entry_safe(gr, grs, &mmc_test_result, link) {
3033 struct mmc_test_transfer_result *tr, *trs;
3035 if (card && gr->card != card)
3038 list_for_each_entry_safe(tr, trs, &gr->tr_lst, link) {
3039 list_del(&tr->link);
3043 list_del(&gr->link);
3047 mutex_unlock(&mmc_test_lock);
3050 static LIST_HEAD(mmc_test_file_test);
3052 static int mtf_test_show(struct seq_file *sf, void *data)
3054 struct mmc_card *card = (struct mmc_card *)sf->private;
3055 struct mmc_test_general_result *gr;
3057 mutex_lock(&mmc_test_lock);
3059 list_for_each_entry(gr, &mmc_test_result, link) {
3060 struct mmc_test_transfer_result *tr;
3062 if (gr->card != card)
3065 seq_printf(sf, "Test %d: %d\n", gr->testcase + 1, gr->result);
3067 list_for_each_entry(tr, &gr->tr_lst, link) {
3068 seq_printf(sf, "%u %d %llu.%09u %u %u.%02u\n",
3069 tr->count, tr->sectors,
3070 (u64)tr->ts.tv_sec, (u32)tr->ts.tv_nsec,
3071 tr->rate, tr->iops / 100, tr->iops % 100);
3075 mutex_unlock(&mmc_test_lock);
3080 static int mtf_test_open(struct inode *inode, struct file *file)
3082 return single_open(file, mtf_test_show, inode->i_private);
3085 static ssize_t mtf_test_write(struct file *file, const char __user *buf,
3086 size_t count, loff_t *pos)
3088 struct seq_file *sf = (struct seq_file *)file->private_data;
3089 struct mmc_card *card = (struct mmc_card *)sf->private;
3090 struct mmc_test_card *test;
3094 ret = kstrtol_from_user(buf, count, 10, &testcase);
3098 test = kzalloc(sizeof(*test), GFP_KERNEL);
3103 * Remove all test cases associated with given card. Thus we have only
3104 * actual data of the last run.
3106 mmc_test_free_result(card);
3110 test->buffer = kzalloc(BUFFER_SIZE, GFP_KERNEL);
3111 #ifdef CONFIG_HIGHMEM
3112 test->highmem = alloc_pages(GFP_KERNEL | __GFP_HIGHMEM, BUFFER_ORDER);
3115 #ifdef CONFIG_HIGHMEM
3116 if (test->buffer && test->highmem) {
3120 mutex_lock(&mmc_test_lock);
3121 mmc_test_run(test, testcase);
3122 mutex_unlock(&mmc_test_lock);
3125 #ifdef CONFIG_HIGHMEM
3126 __free_pages(test->highmem, BUFFER_ORDER);
3128 kfree(test->buffer);
3134 static const struct file_operations mmc_test_fops_test = {
3135 .open = mtf_test_open,
3137 .write = mtf_test_write,
3138 .llseek = seq_lseek,
3139 .release = single_release,
3142 static int mtf_testlist_show(struct seq_file *sf, void *data)
3146 mutex_lock(&mmc_test_lock);
3148 seq_puts(sf, "0:\tRun all tests\n");
3149 for (i = 0; i < ARRAY_SIZE(mmc_test_cases); i++)
3150 seq_printf(sf, "%d:\t%s\n", i + 1, mmc_test_cases[i].name);
3152 mutex_unlock(&mmc_test_lock);
3157 DEFINE_SHOW_ATTRIBUTE(mtf_testlist);
3159 static void mmc_test_free_dbgfs_file(struct mmc_card *card)
3161 struct mmc_test_dbgfs_file *df, *dfs;
3163 mutex_lock(&mmc_test_lock);
3165 list_for_each_entry_safe(df, dfs, &mmc_test_file_test, link) {
3166 if (card && df->card != card)
3168 debugfs_remove(df->file);
3169 list_del(&df->link);
3173 mutex_unlock(&mmc_test_lock);
3176 static int __mmc_test_register_dbgfs_file(struct mmc_card *card,
3177 const char *name, umode_t mode, const struct file_operations *fops)
3179 struct dentry *file = NULL;
3180 struct mmc_test_dbgfs_file *df;
3182 if (card->debugfs_root)
3183 debugfs_create_file(name, mode, card->debugfs_root, card, fops);
3185 df = kmalloc(sizeof(*df), GFP_KERNEL);
3187 debugfs_remove(file);
3194 list_add(&df->link, &mmc_test_file_test);
3198 static int mmc_test_register_dbgfs_file(struct mmc_card *card)
3202 mutex_lock(&mmc_test_lock);
3204 ret = __mmc_test_register_dbgfs_file(card, "test", S_IWUSR | S_IRUGO,
3205 &mmc_test_fops_test);
3209 ret = __mmc_test_register_dbgfs_file(card, "testlist", S_IRUGO,
3210 &mtf_testlist_fops);
3215 mutex_unlock(&mmc_test_lock);
3220 static int mmc_test_probe(struct mmc_card *card)
3224 if (!mmc_card_mmc(card) && !mmc_card_sd(card))
3227 ret = mmc_test_register_dbgfs_file(card);
3231 if (card->ext_csd.cmdq_en) {
3232 mmc_claim_host(card->host);
3233 ret = mmc_cmdq_disable(card);
3234 mmc_release_host(card->host);
3239 dev_info(&card->dev, "Card claimed for testing.\n");
3244 static void mmc_test_remove(struct mmc_card *card)
3246 if (card->reenable_cmdq) {
3247 mmc_claim_host(card->host);
3248 mmc_cmdq_enable(card);
3249 mmc_release_host(card->host);
3251 mmc_test_free_result(card);
3252 mmc_test_free_dbgfs_file(card);
3255 static struct mmc_driver mmc_driver = {
3259 .probe = mmc_test_probe,
3260 .remove = mmc_test_remove,
3263 static int __init mmc_test_init(void)
3265 return mmc_register_driver(&mmc_driver);
3268 static void __exit mmc_test_exit(void)
3270 /* Clear stalled data if card is still plugged */
3271 mmc_test_free_result(NULL);
3272 mmc_test_free_dbgfs_file(NULL);
3274 mmc_unregister_driver(&mmc_driver);
3277 module_init(mmc_test_init);
3278 module_exit(mmc_test_exit);
3280 MODULE_LICENSE("GPL");
3281 MODULE_DESCRIPTION("Multimedia Card (MMC) host test driver");
3282 MODULE_AUTHOR("Pierre Ossman");