diff options
Diffstat (limited to 'drivers/mmc/host/mmc_hsq.h')
| -rw-r--r-- | drivers/mmc/host/mmc_hsq.h | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/drivers/mmc/host/mmc_hsq.h b/drivers/mmc/host/mmc_hsq.h new file mode 100644 index 0000000000..1808024fc6 --- /dev/null +++ b/drivers/mmc/host/mmc_hsq.h @@ -0,0 +1,36 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef LINUX_MMC_HSQ_H +#define LINUX_MMC_HSQ_H + +#define HSQ_NUM_SLOTS 64 +#define HSQ_INVALID_TAG HSQ_NUM_SLOTS + +struct hsq_slot { + struct mmc_request *mrq; +}; + +struct mmc_hsq { + struct mmc_host *mmc; + struct mmc_request *mrq; + wait_queue_head_t wait_queue; + struct hsq_slot *slot; + spinlock_t lock; + struct work_struct retry_work; + + int next_tag; + int num_slots; + int qcnt; + int tail_tag; + int tag_slot[HSQ_NUM_SLOTS]; + + bool enabled; + bool waiting_for_idle; + bool recovery_halt; +}; + +int mmc_hsq_init(struct mmc_hsq *hsq, struct mmc_host *mmc); +void mmc_hsq_suspend(struct mmc_host *mmc); +int mmc_hsq_resume(struct mmc_host *mmc); +bool mmc_hsq_finalize_request(struct mmc_host *mmc, struct mmc_request *mrq); + +#endif |