/* SPDX-License-Identifier: GPL-2.0 */ #ifndef SCM_BLK_H #define SCM_BLK_H #include <linux/interrupt.h> #include <linux/spinlock.h> #include <linux/blkdev.h> #include <linux/blk-mq.h> #include <linux/genhd.h> #include <linux/list.h> #include <asm/debug.h> #include <asm/eadm.h> #define SCM_NR_PARTS 8 #define SCM_QUEUE_DELAY 5 struct scm_blk_dev { struct request_queue *rq; struct gendisk *gendisk; struct blk_mq_tag_set tag_set; struct scm_device *scmdev; spinlock_t lock; atomic_t queued_reqs; enum {SCM_OPER, SCM_WR_PROHIBIT} state; struct list_head finished_requests; }; struct scm_request { struct scm_blk_dev *bdev; struct aidaw *next_aidaw; struct request **request; struct aob *aob; struct list_head list; u8 retries; blk_status_t error; }; #define to_aobrq(rq) container_of((void *) rq, struct aob_rq_header, data) int scm_blk_dev_setup(struct scm_blk_dev *, struct scm_device *); void scm_blk_dev_cleanup(struct scm_blk_dev *); void scm_blk_set_available(struct scm_blk_dev *); void scm_blk_irq(struct scm_device *, void *, blk_status_t); struct aidaw *scm_aidaw_fetch(struct scm_request *scmrq, unsigned int bytes); int scm_drv_init(void); void scm_drv_cleanup(void); extern debug_info_t *scm_debug; #define SCM_LOG(imp, txt) do { \ debug_text_event(scm_debug, imp, txt); \ } while (0) static inline void SCM_LOG_HEX(int level, void *data, int length) { debug_event(scm_debug, level, data, length); } static inline void SCM_LOG_STATE(int level, struct scm_device *scmdev) { struct { u64 address; u8 oper_state; u8 rank; } __packed data = { .address = scmdev->address, .oper_state = scmdev->attrs.oper_state, .rank = scmdev->attrs.rank, }; SCM_LOG_HEX(level, &data, sizeof(data)); } #endif /* SCM_BLK_H */