diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/mmc/host.h | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h index 5afbac264ddd..2324a76123cf 100644 --- a/include/linux/mmc/host.h +++ b/include/linux/mmc/host.h @@ -195,6 +195,23 @@ struct mmc_slot { void *handler_priv; }; + +/** + * mmc_cmdq_context_info - describes the contexts of cmdq + * @active_reqs requests being processed + * @curr_state state of cmdq engine + * @req_starved completion should invoke the request_fn since + * no tags were available + * @cmdq_ctx_lock acquire this before accessing this structure + */ +struct mmc_cmdq_context_info { + unsigned long active_reqs; /* in-flight requests */ + unsigned long curr_state; +#define CMDQ_STATE_ERR 0 + /* no free tag available */ + unsigned long req_starved; +}; + /** * mmc_context_info - synchronization details for mmc context * @is_done_rcv wake up reason was done request @@ -370,6 +387,7 @@ struct mmc_host { /* Some hosts need additional tuning */ #define MMC_CAP2_HS400_POST_TUNING (1 << 22) #define MMC_CAP2_NONHOTPLUG (1 << 25) /*Don't support hotplug*/ +#define MMC_CAP2_CMD_QUEUE (1 << 26) /* support eMMC command queue */ mmc_pm_flag_t pm_caps; /* supported pm features */ @@ -492,6 +510,7 @@ struct mmc_host { #endif enum dev_state dev_status; bool wakeup_on_idle; + struct mmc_cmdq_context_info cmdq_ctx; unsigned long private[0] ____cacheline_aligned; }; |