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1/* SPDX-License-Identifier: GPL-2.0 */2#ifndef SCM_BLK_H3#define SCM_BLK_H4 5#include <linux/interrupt.h>6#include <linux/spinlock.h>7#include <linux/blkdev.h>8#include <linux/blk-mq.h>9#include <linux/list.h>10 11#include <asm/debug.h>12#include <asm/eadm.h>13 14#define SCM_NR_PARTS 815#define SCM_QUEUE_DELAY 516 17struct scm_blk_dev {18 struct request_queue *rq;19 struct gendisk *gendisk;20 struct blk_mq_tag_set tag_set;21 struct scm_device *scmdev;22 spinlock_t lock;23 atomic_t queued_reqs;24 enum {SCM_OPER, SCM_WR_PROHIBIT} state;25 struct list_head finished_requests;26};27 28struct scm_request {29 struct scm_blk_dev *bdev;30 struct aidaw *next_aidaw;31 struct request **request;32 struct aob *aob;33 struct list_head list;34 u8 retries;35 blk_status_t error;36};37 38#define to_aobrq(rq) container_of((void *) rq, struct aob_rq_header, data)39 40int scm_blk_dev_setup(struct scm_blk_dev *, struct scm_device *);41void scm_blk_dev_cleanup(struct scm_blk_dev *);42void scm_blk_set_available(struct scm_blk_dev *);43void scm_blk_irq(struct scm_device *, void *, blk_status_t);44 45struct aidaw *scm_aidaw_fetch(struct scm_request *scmrq, unsigned int bytes);46 47int scm_drv_init(void);48void scm_drv_cleanup(void);49 50extern debug_info_t *scm_debug;51 52#define SCM_LOG(imp, txt) do { \53 debug_text_event(scm_debug, imp, txt); \54 } while (0)55 56static inline void SCM_LOG_HEX(int level, void *data, int length)57{58 debug_event(scm_debug, level, data, length);59}60 61static inline void SCM_LOG_STATE(int level, struct scm_device *scmdev)62{63 struct {64 u64 address;65 u8 oper_state;66 u8 rank;67 } __packed data = {68 .address = scmdev->address,69 .oper_state = scmdev->attrs.oper_state,70 .rank = scmdev->attrs.rank,71 };72 73 SCM_LOG_HEX(level, &data, sizeof(data));74}75 76#endif /* SCM_BLK_H */77