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gerrit-public.fairphone.software / kernel / msm-5.4 / b3f028fc8abdf72c6ed1103e60e89dd60538f126 / . / drivers / mmc / core / queue.h
blob: dac8c3d010dd9615a576256ec45b2dd7cef5a6f2 [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]1#ifndef MMC_QUEUE_H
2#define MMC_QUEUE_H
3
Mike Christiec2df40d2016-06-05 14:32:17 -0500[diff] [blame]4static inline bool mmc_req_is_special(struct request *req)
5{
Mike Christie3a5e02c2016-06-05 14:32:23 -0500[diff] [blame]6 return req &&
Adrian Hunter7afafc82016-08-16 10:59:35 +0300[diff] [blame]7 (req_op(req) == REQ_OP_FLUSH ||
8 req_op(req) == REQ_OP_DISCARD ||
9 req_op(req) == REQ_OP_SECURE_ERASE);
Mike Christiec2df40d2016-06-05 14:32:17 -0500[diff] [blame]10}
Seungwon Jeonef3a69c72013-03-14 15:17:13 +0900[diff] [blame]11
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]12struct request;
13struct task_struct;
Linus Walleij7db30282016-11-18 13:36:15 +0100[diff] [blame]14struct mmc_blk_data;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]15
Per Forlin97868a22011-07-09 17:12:36 -0400[diff] [blame]16struct mmc_blk_request {
17 struct mmc_request mrq;
18 struct mmc_command sbc;
19 struct mmc_command cmd;
20 struct mmc_command stop;
21 struct mmc_data data;
Adrian Hunterb8360a42015-05-07 13:10:24 +0300[diff] [blame]22 int retune_retry_done;
Per Forlin97868a22011-07-09 17:12:36 -0400[diff] [blame]23};
24
25struct mmc_queue_req {
26 struct request *req;
27 struct mmc_blk_request brq;
28 struct scatterlist *sg;
29 char *bounce_buf;
30 struct scatterlist *bounce_sg;
31 unsigned int bounce_sg_len;
Per Forlinee8a43a2011-07-01 18:55:33 +0200[diff] [blame]32 struct mmc_async_req mmc_active;
Per Forlin97868a22011-07-09 17:12:36 -0400[diff] [blame]33};
34
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]35struct mmc_queue {
36 struct mmc_card *card;
Christoph Hellwig87598a22006-11-13 20:23:52 +0100[diff] [blame]37 struct task_struct *thread;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]38 struct semaphore thread_sem;
39 unsigned int flags;
Konstantin Dorfman2220eed2013-01-14 14:28:17 -0500[diff] [blame]40#define MMC_QUEUE_SUSPENDED (1 << 0)
41#define MMC_QUEUE_NEW_REQUEST (1 << 1)
Adrian Huntere0097cf2016-11-29 12:09:10 +0200[diff] [blame]42 bool asleep;
Linus Walleij7db30282016-11-18 13:36:15 +0100[diff] [blame]43 struct mmc_blk_data *blkdata;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]44 struct request_queue *queue;
Adrian Hunterc5bda0c2016-11-29 12:09:15 +0200[diff] [blame]45 struct mmc_queue_req *mqrq;
Per Forlin97868a22011-07-09 17:12:36 -0400[diff] [blame]46 struct mmc_queue_req *mqrq_cur;
Per Forlin04296b72011-07-01 18:55:31 +0200[diff] [blame]47 struct mmc_queue_req *mqrq_prev;
Adrian Hunterc5bda0c2016-11-29 12:09:15 +0200[diff] [blame]48 int qdepth;
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]49};
50
Adrian Hunterd09408a2011-06-23 13:40:28 +0300[diff] [blame]51extern int mmc_init_queue(struct mmc_queue *, struct mmc_card *, spinlock_t *,
52 const char *);
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]53extern void mmc_cleanup_queue(struct mmc_queue *);
54extern void mmc_queue_suspend(struct mmc_queue *);
55extern void mmc_queue_resume(struct mmc_queue *);
56
Per Forlin97868a22011-07-09 17:12:36 -0400[diff] [blame]57extern unsigned int mmc_queue_map_sg(struct mmc_queue *,
58 struct mmc_queue_req *);
59extern void mmc_queue_bounce_pre(struct mmc_queue_req *);
60extern void mmc_queue_bounce_post(struct mmc_queue_req *);
Pierre Ossman98ccf142007-05-12 00:26:16 +0200[diff] [blame]61
Chuanxiao Dong4e93b9a2014-08-12 12:01:30 +0800[diff] [blame]62extern int mmc_access_rpmb(struct mmc_queue *);
63
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]64#endif