1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */
2*4882a593Smuzhiyun #ifndef SCM_BLK_H
3*4882a593Smuzhiyun #define SCM_BLK_H
4*4882a593Smuzhiyun
5*4882a593Smuzhiyun #include <linux/interrupt.h>
6*4882a593Smuzhiyun #include <linux/spinlock.h>
7*4882a593Smuzhiyun #include <linux/blkdev.h>
8*4882a593Smuzhiyun #include <linux/blk-mq.h>
9*4882a593Smuzhiyun #include <linux/genhd.h>
10*4882a593Smuzhiyun #include <linux/list.h>
11*4882a593Smuzhiyun
12*4882a593Smuzhiyun #include <asm/debug.h>
13*4882a593Smuzhiyun #include <asm/eadm.h>
14*4882a593Smuzhiyun
15*4882a593Smuzhiyun #define SCM_NR_PARTS 8
16*4882a593Smuzhiyun #define SCM_QUEUE_DELAY 5
17*4882a593Smuzhiyun
18*4882a593Smuzhiyun struct scm_blk_dev {
19*4882a593Smuzhiyun struct request_queue *rq;
20*4882a593Smuzhiyun struct gendisk *gendisk;
21*4882a593Smuzhiyun struct blk_mq_tag_set tag_set;
22*4882a593Smuzhiyun struct scm_device *scmdev;
23*4882a593Smuzhiyun spinlock_t lock;
24*4882a593Smuzhiyun atomic_t queued_reqs;
25*4882a593Smuzhiyun enum {SCM_OPER, SCM_WR_PROHIBIT} state;
26*4882a593Smuzhiyun struct list_head finished_requests;
27*4882a593Smuzhiyun };
28*4882a593Smuzhiyun
29*4882a593Smuzhiyun struct scm_request {
30*4882a593Smuzhiyun struct scm_blk_dev *bdev;
31*4882a593Smuzhiyun struct aidaw *next_aidaw;
32*4882a593Smuzhiyun struct request **request;
33*4882a593Smuzhiyun struct aob *aob;
34*4882a593Smuzhiyun struct list_head list;
35*4882a593Smuzhiyun u8 retries;
36*4882a593Smuzhiyun blk_status_t error;
37*4882a593Smuzhiyun };
38*4882a593Smuzhiyun
39*4882a593Smuzhiyun #define to_aobrq(rq) container_of((void *) rq, struct aob_rq_header, data)
40*4882a593Smuzhiyun
41*4882a593Smuzhiyun int scm_blk_dev_setup(struct scm_blk_dev *, struct scm_device *);
42*4882a593Smuzhiyun void scm_blk_dev_cleanup(struct scm_blk_dev *);
43*4882a593Smuzhiyun void scm_blk_set_available(struct scm_blk_dev *);
44*4882a593Smuzhiyun void scm_blk_irq(struct scm_device *, void *, blk_status_t);
45*4882a593Smuzhiyun
46*4882a593Smuzhiyun struct aidaw *scm_aidaw_fetch(struct scm_request *scmrq, unsigned int bytes);
47*4882a593Smuzhiyun
48*4882a593Smuzhiyun int scm_drv_init(void);
49*4882a593Smuzhiyun void scm_drv_cleanup(void);
50*4882a593Smuzhiyun
51*4882a593Smuzhiyun extern debug_info_t *scm_debug;
52*4882a593Smuzhiyun
53*4882a593Smuzhiyun #define SCM_LOG(imp, txt) do { \
54*4882a593Smuzhiyun debug_text_event(scm_debug, imp, txt); \
55*4882a593Smuzhiyun } while (0)
56*4882a593Smuzhiyun
SCM_LOG_HEX(int level,void * data,int length)57*4882a593Smuzhiyun static inline void SCM_LOG_HEX(int level, void *data, int length)
58*4882a593Smuzhiyun {
59*4882a593Smuzhiyun debug_event(scm_debug, level, data, length);
60*4882a593Smuzhiyun }
61*4882a593Smuzhiyun
SCM_LOG_STATE(int level,struct scm_device * scmdev)62*4882a593Smuzhiyun static inline void SCM_LOG_STATE(int level, struct scm_device *scmdev)
63*4882a593Smuzhiyun {
64*4882a593Smuzhiyun struct {
65*4882a593Smuzhiyun u64 address;
66*4882a593Smuzhiyun u8 oper_state;
67*4882a593Smuzhiyun u8 rank;
68*4882a593Smuzhiyun } __packed data = {
69*4882a593Smuzhiyun .address = scmdev->address,
70*4882a593Smuzhiyun .oper_state = scmdev->attrs.oper_state,
71*4882a593Smuzhiyun .rank = scmdev->attrs.rank,
72*4882a593Smuzhiyun };
73*4882a593Smuzhiyun
74*4882a593Smuzhiyun SCM_LOG_HEX(level, &data, sizeof(data));
75*4882a593Smuzhiyun }
76*4882a593Smuzhiyun
77*4882a593Smuzhiyun #endif /* SCM_BLK_H */
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