diff options
| author | Adrian Hunter <adrian.hunter@intel.com> | 2017-11-29 14:41:10 +0100 |
|---|---|---|
| committer | Ulf Hansson <ulf.hansson@linaro.org> | 2017-12-11 12:44:36 +0100 |
| commit | f47a1fe346b1568df0e9b158574b2939432313df (patch) | |
| tree | c7753c96840bf4f22f5867a797ef9be9583f0707 /drivers/mmc | |
| parent | mmc: block: Make card_busy_detect() accumulate all response error bits (diff) | |
| download | linux-f47a1fe346b1568df0e9b158574b2939432313df.tar.xz linux-f47a1fe346b1568df0e9b158574b2939432313df.zip | |
mmc: block: blk-mq: Check error bits and save the exception bit when polling card busy
Check error bits and save the exception bit when polling card busy.
Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/mmc')
| -rw-r--r-- | drivers/mmc/core/block.c | 37 |
1 files changed, 28 insertions, 9 deletions
diff --git a/drivers/mmc/core/block.c b/drivers/mmc/core/block.c index 30fc012353ae..c446d17b48c4 100644 --- a/drivers/mmc/core/block.c +++ b/drivers/mmc/core/block.c @@ -1457,15 +1457,18 @@ static inline void mmc_apply_rel_rw(struct mmc_blk_request *brq, } } -#define CMD_ERRORS \ - (R1_OUT_OF_RANGE | /* Command argument out of range */ \ - R1_ADDRESS_ERROR | /* Misaligned address */ \ +#define CMD_ERRORS_EXCL_OOR \ + (R1_ADDRESS_ERROR | /* Misaligned address */ \ R1_BLOCK_LEN_ERROR | /* Transferred block length incorrect */\ R1_WP_VIOLATION | /* Tried to write to protected block */ \ R1_CARD_ECC_FAILED | /* Card ECC failed */ \ R1_CC_ERROR | /* Card controller error */ \ R1_ERROR) /* General/unknown error */ +#define CMD_ERRORS \ + (CMD_ERRORS_EXCL_OOR | \ + R1_OUT_OF_RANGE) /* Command argument out of range */ \ + static void mmc_blk_eval_resp_error(struct mmc_blk_request *brq) { u32 val; @@ -2157,24 +2160,40 @@ static inline bool mmc_blk_rq_error(struct mmc_blk_request *brq) brq->data.error || brq->cmd.resp[0] & CMD_ERRORS; } +static inline bool mmc_blk_oor_valid(struct mmc_blk_request *brq) +{ + return !!brq->mrq.sbc; +} + +static inline u32 mmc_blk_stop_err_bits(struct mmc_blk_request *brq) +{ + return mmc_blk_oor_valid(brq) ? CMD_ERRORS : CMD_ERRORS_EXCL_OOR; +} + static int mmc_blk_card_busy(struct mmc_card *card, struct request *req) { struct mmc_queue_req *mqrq = req_to_mmc_queue_req(req); - bool gen_err = false; + u32 status = 0; int err; if (mmc_host_is_spi(card->host) || rq_data_dir(req) == READ) return 0; - err = card_busy_detect_err(card, MMC_BLK_TIMEOUT_MS, false, req, - &gen_err); + err = card_busy_detect(card, MMC_BLK_TIMEOUT_MS, false, req, &status); - /* Copy the general error bit so it will be seen later on */ - if (gen_err) { - mqrq->brq.stop.resp[0] |= R1_ERROR; + /* + * Do not assume data transferred correctly if there are any error bits + * set. + */ + if (status & mmc_blk_stop_err_bits(&mqrq->brq)) { + mqrq->brq.data.bytes_xfered = 0; err = err ? err : -EIO; } + /* Copy the exception bit so it will be seen later on */ + if (mmc_card_mmc(card) && status & R1_EXCEPTION_EVENT) + mqrq->brq.cmd.resp[0] |= R1_EXCEPTION_EVENT; + return err; } |