diff options
Diffstat (limited to 'drivers/mmc/card/mmc_test.c')
| -rw-r--r-- | drivers/mmc/card/mmc_test.c | 225 |
1 files changed, 221 insertions, 4 deletions
diff --git a/drivers/mmc/card/mmc_test.c b/drivers/mmc/card/mmc_test.c index d6b9b486417c..a067fe436301 100644 --- a/drivers/mmc/card/mmc_test.c +++ b/drivers/mmc/card/mmc_test.c @@ -21,13 +21,17 @@ #define RESULT_UNSUP_HOST 2 #define RESULT_UNSUP_CARD 3 -#define BUFFER_SIZE (PAGE_SIZE * 4) +#define BUFFER_ORDER 2 +#define BUFFER_SIZE (PAGE_SIZE << BUFFER_ORDER) struct mmc_test_card { struct mmc_card *card; u8 scratch[BUFFER_SIZE]; u8 *buffer; +#ifdef CONFIG_HIGHMEM + struct page *highmem; +#endif }; /*******************************************************************/ @@ -384,14 +388,16 @@ static int mmc_test_transfer(struct mmc_test_card *test, int ret, i; unsigned long flags; + BUG_ON(blocks * blksz > BUFFER_SIZE); + if (write) { for (i = 0;i < blocks * blksz;i++) test->scratch[i] = i; } else { - memset(test->scratch, 0, BUFFER_SIZE); + memset(test->scratch, 0, blocks * blksz); } local_irq_save(flags); - sg_copy_from_buffer(sg, sg_len, test->scratch, BUFFER_SIZE); + sg_copy_from_buffer(sg, sg_len, test->scratch, blocks * blksz); local_irq_restore(flags); ret = mmc_test_set_blksize(test, blksz); @@ -438,7 +444,7 @@ static int mmc_test_transfer(struct mmc_test_card *test, } } else { local_irq_save(flags); - sg_copy_to_buffer(sg, sg_len, test->scratch, BUFFER_SIZE); + sg_copy_to_buffer(sg, sg_len, test->scratch, blocks * blksz); local_irq_restore(flags); for (i = 0;i < blocks * blksz;i++) { if (test->scratch[i] != (u8)i) @@ -799,6 +805,157 @@ static int mmc_test_multi_xfersize_read(struct mmc_test_card *test) return 0; } +static int mmc_test_bigsg_write(struct mmc_test_card *test) +{ + int ret; + unsigned int size; + struct scatterlist sg; + + if (test->card->host->max_blk_count == 1) + return RESULT_UNSUP_HOST; + + size = PAGE_SIZE * 2; + size = min(size, test->card->host->max_req_size); + size = min(size, test->card->host->max_seg_size); + size = min(size, test->card->host->max_blk_count * 512); + + memset(test->buffer, 0, BUFFER_SIZE); + + if (size < 1024) + return RESULT_UNSUP_HOST; + + sg_init_table(&sg, 1); + sg_init_one(&sg, test->buffer, BUFFER_SIZE); + + ret = mmc_test_transfer(test, &sg, 1, 0, size/512, 512, 1); + if (ret) + return ret; + + return 0; +} + +static int mmc_test_bigsg_read(struct mmc_test_card *test) +{ + int ret, i; + unsigned int size; + struct scatterlist sg; + + if (test->card->host->max_blk_count == 1) + return RESULT_UNSUP_HOST; + + size = PAGE_SIZE * 2; + size = min(size, test->card->host->max_req_size); + size = min(size, test->card->host->max_seg_size); + size = min(size, test->card->host->max_blk_count * 512); + + if (size < 1024) + return RESULT_UNSUP_HOST; + + memset(test->buffer, 0xCD, BUFFER_SIZE); + + sg_init_table(&sg, 1); + sg_init_one(&sg, test->buffer, BUFFER_SIZE); + ret = mmc_test_transfer(test, &sg, 1, 0, size/512, 512, 0); + if (ret) + return ret; + + /* mmc_test_transfer() doesn't check for read overflows */ + for (i = size;i < BUFFER_SIZE;i++) { + if (test->buffer[i] != 0xCD) + return RESULT_FAIL; + } + + return 0; +} + +#ifdef CONFIG_HIGHMEM + +static int mmc_test_write_high(struct mmc_test_card *test) +{ + int ret; + struct scatterlist sg; + + sg_init_table(&sg, 1); + sg_set_page(&sg, test->highmem, 512, 0); + + ret = mmc_test_transfer(test, &sg, 1, 0, 1, 512, 1); + if (ret) + return ret; + + return 0; +} + +static int mmc_test_read_high(struct mmc_test_card *test) +{ + int ret; + struct scatterlist sg; + + sg_init_table(&sg, 1); + sg_set_page(&sg, test->highmem, 512, 0); + + ret = mmc_test_transfer(test, &sg, 1, 0, 1, 512, 0); + if (ret) + return ret; + + return 0; +} + +static int mmc_test_multi_write_high(struct mmc_test_card *test) +{ + int ret; + unsigned int size; + struct scatterlist sg; + + if (test->card->host->max_blk_count == 1) + return RESULT_UNSUP_HOST; + + size = PAGE_SIZE * 2; + size = min(size, test->card->host->max_req_size); + size = min(size, test->card->host->max_seg_size); + size = min(size, test->card->host->max_blk_count * 512); + + if (size < 1024) + return RESULT_UNSUP_HOST; + + sg_init_table(&sg, 1); + sg_set_page(&sg, test->highmem, size, 0); + + ret = mmc_test_transfer(test, &sg, 1, 0, size/512, 512, 1); + if (ret) + return ret; + + return 0; +} + +static int mmc_test_multi_read_high(struct mmc_test_card *test) +{ + int ret; + unsigned int size; + struct scatterlist sg; + + if (test->card->host->max_blk_count == 1) + return RESULT_UNSUP_HOST; + + size = PAGE_SIZE * 2; + size = min(size, test->card->host->max_req_size); + size = min(size, test->card->host->max_seg_size); + size = min(size, test->card->host->max_blk_count * 512); + + if (size < 1024) + return RESULT_UNSUP_HOST; + + sg_init_table(&sg, 1); + sg_set_page(&sg, test->highmem, size, 0); + + ret = mmc_test_transfer(test, &sg, 1, 0, size/512, 512, 0); + if (ret) + return ret; + + return 0; +} + +#endif /* CONFIG_HIGHMEM */ + static const struct mmc_test_case mmc_test_cases[] = { { .name = "Basic write (no data verification)", @@ -913,6 +1070,53 @@ static const struct mmc_test_case mmc_test_cases[] = { .name = "Correct xfer_size at read (midway failure)", .run = mmc_test_multi_xfersize_read, }, + + { + .name = "Over-sized SG list write", + .prepare = mmc_test_prepare_write, + .run = mmc_test_bigsg_write, + .cleanup = mmc_test_cleanup, + }, + + { + .name = "Over-sized SG list read", + .prepare = mmc_test_prepare_read, + .run = mmc_test_bigsg_read, + .cleanup = mmc_test_cleanup, + }, + +#ifdef CONFIG_HIGHMEM + + { + .name = "Highmem write", + .prepare = mmc_test_prepare_write, + .run = mmc_test_write_high, + .cleanup = mmc_test_cleanup, + }, + + { + .name = "Highmem read", + .prepare = mmc_test_prepare_read, + .run = mmc_test_read_high, + .cleanup = mmc_test_cleanup, + }, + + { + .name = "Multi-block highmem write", + .prepare = mmc_test_prepare_write, + .run = mmc_test_multi_write_high, + .cleanup = mmc_test_cleanup, + }, + + { + .name = "Multi-block highmem read", + .prepare = mmc_test_prepare_read, + .run = mmc_test_multi_read_high, + .cleanup = mmc_test_cleanup, + }, + +#endif /* CONFIG_HIGHMEM */ + }; static struct mutex mmc_test_lock; @@ -1014,12 +1218,23 @@ static ssize_t mmc_test_store(struct device *dev, test->card = card; test->buffer = kzalloc(BUFFER_SIZE, GFP_KERNEL); +#ifdef CONFIG_HIGHMEM + test->highmem = alloc_pages(GFP_KERNEL | __GFP_HIGHMEM, BUFFER_ORDER); +#endif + +#ifdef CONFIG_HIGHMEM + if (test->buffer && test->highmem) { +#else if (test->buffer) { +#endif mutex_lock(&mmc_test_lock); mmc_test_run(test, testcase); mutex_unlock(&mmc_test_lock); } +#ifdef CONFIG_HIGHMEM + __free_pages(test->highmem, BUFFER_ORDER); +#endif kfree(test->buffer); kfree(test); @@ -1041,6 +1256,8 @@ static int mmc_test_probe(struct mmc_card *card) if (ret) return ret; + dev_info(&card->dev, "Card claimed for testing.\n"); + return 0; } |