]>
Commit | Line | Data |
---|---|---|
935912c5 | 1 | // SPDX-License-Identifier: GPL-2.0-only |
c6131fa5 GU |
2 | /* |
3 | * PS3 Disk Storage Driver | |
4 | * | |
5 | * Copyright (C) 2007 Sony Computer Entertainment Inc. | |
6 | * Copyright 2007 Sony Corp. | |
c6131fa5 GU |
7 | */ |
8 | ||
9 | #include <linux/ata.h> | |
fab1adcf | 10 | #include <linux/blk-mq.h> |
5a0e3ad6 | 11 | #include <linux/slab.h> |
0c8d44f2 | 12 | #include <linux/module.h> |
c6131fa5 GU |
13 | |
14 | #include <asm/lv1call.h> | |
15 | #include <asm/ps3stor.h> | |
16 | #include <asm/firmware.h> | |
17 | ||
18 | ||
19 | #define DEVICE_NAME "ps3disk" | |
20 | ||
21 | #define BOUNCE_SIZE (64*1024) | |
22 | ||
23 | #define PS3DISK_MAX_DISKS 16 | |
24 | #define PS3DISK_MINORS 16 | |
25 | ||
26 | ||
27 | #define PS3DISK_NAME "ps3d%c" | |
28 | ||
29 | ||
30 | struct ps3disk_private { | |
31 | spinlock_t lock; /* Request queue spinlock */ | |
32 | struct request_queue *queue; | |
fab1adcf | 33 | struct blk_mq_tag_set tag_set; |
c6131fa5 GU |
34 | struct gendisk *gendisk; |
35 | unsigned int blocking_factor; | |
36 | struct request *req; | |
37 | u64 raw_capacity; | |
38 | unsigned char model[ATA_ID_PROD_LEN+1]; | |
39 | }; | |
40 | ||
41 | ||
42 | #define LV1_STORAGE_SEND_ATA_COMMAND (2) | |
43 | #define LV1_STORAGE_ATA_HDDOUT (0x23) | |
44 | ||
45 | struct lv1_ata_cmnd_block { | |
46 | u16 features; | |
47 | u16 sector_count; | |
48 | u16 LBA_low; | |
49 | u16 LBA_mid; | |
50 | u16 LBA_high; | |
51 | u8 device; | |
52 | u8 command; | |
53 | u32 is_ext; | |
54 | u32 proto; | |
55 | u32 in_out; | |
56 | u32 size; | |
57 | u64 buffer; | |
58 | u32 arglen; | |
59 | }; | |
60 | ||
61 | enum lv1_ata_proto { | |
62 | NON_DATA_PROTO = 0, | |
63 | PIO_DATA_IN_PROTO = 1, | |
64 | PIO_DATA_OUT_PROTO = 2, | |
65 | DMA_PROTO = 3 | |
66 | }; | |
67 | ||
68 | enum lv1_ata_in_out { | |
69 | DIR_WRITE = 0, /* memory -> device */ | |
70 | DIR_READ = 1 /* device -> memory */ | |
71 | }; | |
72 | ||
73 | static int ps3disk_major; | |
74 | ||
75 | ||
83d5cde4 | 76 | static const struct block_device_operations ps3disk_fops = { |
c6131fa5 GU |
77 | .owner = THIS_MODULE, |
78 | }; | |
79 | ||
80 | ||
81 | static void ps3disk_scatter_gather(struct ps3_storage_device *dev, | |
82 | struct request *req, int gather) | |
83 | { | |
84 | unsigned int offset = 0; | |
5705f702 | 85 | struct req_iterator iter; |
7988613b | 86 | struct bio_vec bvec; |
5705f702 | 87 | unsigned int i = 0; |
c6131fa5 GU |
88 | size_t size; |
89 | void *buf; | |
90 | ||
5705f702 N |
91 | rq_for_each_segment(bvec, req, iter) { |
92 | unsigned long flags; | |
72deb455 | 93 | dev_dbg(&dev->sbd.core, "%s:%u: bio %u: %u sectors from %llu\n", |
458b76ed KO |
94 | __func__, __LINE__, i, bio_sectors(iter.bio), |
95 | iter.bio->bi_iter.bi_sector); | |
5705f702 | 96 | |
7988613b KO |
97 | size = bvec.bv_len; |
98 | buf = bvec_kmap_irq(&bvec, &flags); | |
6c92e699 JA |
99 | if (gather) |
100 | memcpy(dev->bounce_buf+offset, buf, size); | |
101 | else | |
102 | memcpy(buf, dev->bounce_buf+offset, size); | |
103 | offset += size; | |
7988613b | 104 | flush_kernel_dcache_page(bvec.bv_page); |
93055c31 | 105 | bvec_kunmap_irq(buf, &flags); |
c6131fa5 GU |
106 | i++; |
107 | } | |
108 | } | |
109 | ||
fab1adcf JA |
110 | static blk_status_t ps3disk_submit_request_sg(struct ps3_storage_device *dev, |
111 | struct request *req) | |
c6131fa5 | 112 | { |
03fa68c2 | 113 | struct ps3disk_private *priv = ps3_system_bus_get_drvdata(&dev->sbd); |
c6131fa5 GU |
114 | int write = rq_data_dir(req), res; |
115 | const char *op = write ? "write" : "read"; | |
116 | u64 start_sector, sectors; | |
117 | unsigned int region_id = dev->regions[dev->region_idx].id; | |
118 | ||
119 | #ifdef DEBUG | |
120 | unsigned int n = 0; | |
7988613b | 121 | struct bio_vec bv; |
5705f702 | 122 | struct req_iterator iter; |
c6131fa5 | 123 | |
5705f702 | 124 | rq_for_each_segment(bv, req, iter) |
c6131fa5 GU |
125 | n++; |
126 | dev_dbg(&dev->sbd.core, | |
83096ebf TH |
127 | "%s:%u: %s req has %u bvecs for %u sectors\n", |
128 | __func__, __LINE__, op, n, blk_rq_sectors(req)); | |
c6131fa5 GU |
129 | #endif |
130 | ||
83096ebf TH |
131 | start_sector = blk_rq_pos(req) * priv->blocking_factor; |
132 | sectors = blk_rq_sectors(req) * priv->blocking_factor; | |
e377c6e2 | 133 | dev_dbg(&dev->sbd.core, "%s:%u: %s %llu sectors starting at %llu\n", |
c6131fa5 GU |
134 | __func__, __LINE__, op, sectors, start_sector); |
135 | ||
136 | if (write) { | |
137 | ps3disk_scatter_gather(dev, req, 1); | |
138 | ||
139 | res = lv1_storage_write(dev->sbd.dev_id, region_id, | |
140 | start_sector, sectors, 0, | |
141 | dev->bounce_lpar, &dev->tag); | |
142 | } else { | |
143 | res = lv1_storage_read(dev->sbd.dev_id, region_id, | |
144 | start_sector, sectors, 0, | |
145 | dev->bounce_lpar, &dev->tag); | |
146 | } | |
147 | if (res) { | |
148 | dev_err(&dev->sbd.core, "%s:%u: %s failed %d\n", __func__, | |
149 | __LINE__, op, res); | |
fab1adcf | 150 | return BLK_STS_IOERR; |
c6131fa5 GU |
151 | } |
152 | ||
153 | priv->req = req; | |
fab1adcf | 154 | return BLK_STS_OK; |
c6131fa5 GU |
155 | } |
156 | ||
fab1adcf JA |
157 | static blk_status_t ps3disk_submit_flush_request(struct ps3_storage_device *dev, |
158 | struct request *req) | |
c6131fa5 | 159 | { |
03fa68c2 | 160 | struct ps3disk_private *priv = ps3_system_bus_get_drvdata(&dev->sbd); |
c6131fa5 GU |
161 | u64 res; |
162 | ||
163 | dev_dbg(&dev->sbd.core, "%s:%u: flush request\n", __func__, __LINE__); | |
164 | ||
165 | res = lv1_storage_send_device_command(dev->sbd.dev_id, | |
166 | LV1_STORAGE_ATA_HDDOUT, 0, 0, 0, | |
167 | 0, &dev->tag); | |
168 | if (res) { | |
e377c6e2 | 169 | dev_err(&dev->sbd.core, "%s:%u: sync cache failed 0x%llx\n", |
c6131fa5 | 170 | __func__, __LINE__, res); |
fab1adcf | 171 | return BLK_STS_IOERR; |
c6131fa5 GU |
172 | } |
173 | ||
174 | priv->req = req; | |
fab1adcf | 175 | return BLK_STS_OK; |
c6131fa5 GU |
176 | } |
177 | ||
fab1adcf JA |
178 | static blk_status_t ps3disk_do_request(struct ps3_storage_device *dev, |
179 | struct request *req) | |
c6131fa5 | 180 | { |
c6131fa5 GU |
181 | dev_dbg(&dev->sbd.core, "%s:%u\n", __func__, __LINE__); |
182 | ||
fab1adcf JA |
183 | switch (req_op(req)) { |
184 | case REQ_OP_FLUSH: | |
185 | return ps3disk_submit_flush_request(dev, req); | |
186 | case REQ_OP_READ: | |
187 | case REQ_OP_WRITE: | |
188 | return ps3disk_submit_request_sg(dev, req); | |
189 | default: | |
190 | blk_dump_rq_flags(req, DEVICE_NAME " bad request"); | |
191 | return BLK_STS_IOERR; | |
c6131fa5 GU |
192 | } |
193 | } | |
194 | ||
fab1adcf JA |
195 | static blk_status_t ps3disk_queue_rq(struct blk_mq_hw_ctx *hctx, |
196 | const struct blk_mq_queue_data *bd) | |
c6131fa5 | 197 | { |
fab1adcf | 198 | struct request_queue *q = hctx->queue; |
c6131fa5 | 199 | struct ps3_storage_device *dev = q->queuedata; |
03fa68c2 | 200 | struct ps3disk_private *priv = ps3_system_bus_get_drvdata(&dev->sbd); |
fab1adcf | 201 | blk_status_t ret; |
c6131fa5 | 202 | |
fab1adcf JA |
203 | blk_mq_start_request(bd->rq); |
204 | ||
205 | spin_lock_irq(&priv->lock); | |
206 | ret = ps3disk_do_request(dev, bd->rq); | |
207 | spin_unlock_irq(&priv->lock); | |
c6131fa5 | 208 | |
fab1adcf | 209 | return ret; |
c6131fa5 GU |
210 | } |
211 | ||
212 | static irqreturn_t ps3disk_interrupt(int irq, void *data) | |
213 | { | |
214 | struct ps3_storage_device *dev = data; | |
215 | struct ps3disk_private *priv; | |
216 | struct request *req; | |
2a842aca CH |
217 | int res, read; |
218 | blk_status_t error; | |
c6131fa5 | 219 | u64 tag, status; |
c6131fa5 GU |
220 | const char *op; |
221 | ||
222 | res = lv1_storage_get_async_status(dev->sbd.dev_id, &tag, &status); | |
223 | ||
224 | if (tag != dev->tag) | |
225 | dev_err(&dev->sbd.core, | |
e377c6e2 | 226 | "%s:%u: tag mismatch, got %llx, expected %llx\n", |
c6131fa5 GU |
227 | __func__, __LINE__, tag, dev->tag); |
228 | ||
229 | if (res) { | |
e377c6e2 | 230 | dev_err(&dev->sbd.core, "%s:%u: res=%d status=0x%llx\n", |
c6131fa5 GU |
231 | __func__, __LINE__, res, status); |
232 | return IRQ_HANDLED; | |
233 | } | |
234 | ||
03fa68c2 | 235 | priv = ps3_system_bus_get_drvdata(&dev->sbd); |
c6131fa5 GU |
236 | req = priv->req; |
237 | if (!req) { | |
238 | dev_dbg(&dev->sbd.core, | |
239 | "%s:%u non-block layer request completed\n", __func__, | |
240 | __LINE__); | |
241 | dev->lv1_status = status; | |
242 | complete(&dev->done); | |
243 | return IRQ_HANDLED; | |
244 | } | |
245 | ||
3a5e02ce | 246 | if (req_op(req) == REQ_OP_FLUSH) { |
c6131fa5 | 247 | read = 0; |
c6131fa5 GU |
248 | op = "flush"; |
249 | } else { | |
250 | read = !rq_data_dir(req); | |
c6131fa5 GU |
251 | op = read ? "read" : "write"; |
252 | } | |
253 | if (status) { | |
e377c6e2 | 254 | dev_dbg(&dev->sbd.core, "%s:%u: %s failed 0x%llx\n", __func__, |
c6131fa5 | 255 | __LINE__, op, status); |
2a842aca | 256 | error = BLK_STS_IOERR; |
c6131fa5 GU |
257 | } else { |
258 | dev_dbg(&dev->sbd.core, "%s:%u: %s completed\n", __func__, | |
259 | __LINE__, op); | |
f01ab252 | 260 | error = 0; |
c6131fa5 GU |
261 | if (read) |
262 | ps3disk_scatter_gather(dev, req, 0); | |
263 | } | |
264 | ||
265 | spin_lock(&priv->lock); | |
c6131fa5 | 266 | priv->req = NULL; |
fab1adcf | 267 | blk_mq_end_request(req, error); |
c6131fa5 GU |
268 | spin_unlock(&priv->lock); |
269 | ||
fab1adcf | 270 | blk_mq_run_hw_queues(priv->queue, true); |
c6131fa5 GU |
271 | return IRQ_HANDLED; |
272 | } | |
273 | ||
274 | static int ps3disk_sync_cache(struct ps3_storage_device *dev) | |
275 | { | |
276 | u64 res; | |
277 | ||
278 | dev_dbg(&dev->sbd.core, "%s:%u: sync cache\n", __func__, __LINE__); | |
279 | ||
280 | res = ps3stor_send_command(dev, LV1_STORAGE_ATA_HDDOUT, 0, 0, 0, 0); | |
281 | if (res) { | |
e377c6e2 | 282 | dev_err(&dev->sbd.core, "%s:%u: sync cache failed 0x%llx\n", |
c6131fa5 GU |
283 | __func__, __LINE__, res); |
284 | return -EIO; | |
285 | } | |
286 | return 0; | |
287 | } | |
288 | ||
289 | ||
290 | /* ATA helpers copied from drivers/ata/libata-core.c */ | |
291 | ||
292 | static void swap_buf_le16(u16 *buf, unsigned int buf_words) | |
293 | { | |
294 | #ifdef __BIG_ENDIAN | |
295 | unsigned int i; | |
296 | ||
297 | for (i = 0; i < buf_words; i++) | |
298 | buf[i] = le16_to_cpu(buf[i]); | |
299 | #endif /* __BIG_ENDIAN */ | |
300 | } | |
301 | ||
302 | static u64 ata_id_n_sectors(const u16 *id) | |
303 | { | |
304 | if (ata_id_has_lba(id)) { | |
305 | if (ata_id_has_lba48(id)) | |
306 | return ata_id_u64(id, 100); | |
307 | else | |
308 | return ata_id_u32(id, 60); | |
309 | } else { | |
310 | if (ata_id_current_chs_valid(id)) | |
311 | return ata_id_u32(id, 57); | |
312 | else | |
313 | return id[1] * id[3] * id[6]; | |
314 | } | |
315 | } | |
316 | ||
317 | static void ata_id_string(const u16 *id, unsigned char *s, unsigned int ofs, | |
318 | unsigned int len) | |
319 | { | |
320 | unsigned int c; | |
321 | ||
322 | while (len > 0) { | |
323 | c = id[ofs] >> 8; | |
324 | *s = c; | |
325 | s++; | |
326 | ||
327 | c = id[ofs] & 0xff; | |
328 | *s = c; | |
329 | s++; | |
330 | ||
331 | ofs++; | |
332 | len -= 2; | |
333 | } | |
334 | } | |
335 | ||
336 | static void ata_id_c_string(const u16 *id, unsigned char *s, unsigned int ofs, | |
337 | unsigned int len) | |
338 | { | |
339 | unsigned char *p; | |
340 | ||
341 | WARN_ON(!(len & 1)); | |
342 | ||
343 | ata_id_string(id, s, ofs, len - 1); | |
344 | ||
345 | p = s + strnlen(s, len - 1); | |
346 | while (p > s && p[-1] == ' ') | |
347 | p--; | |
348 | *p = '\0'; | |
349 | } | |
350 | ||
351 | static int ps3disk_identify(struct ps3_storage_device *dev) | |
352 | { | |
03fa68c2 | 353 | struct ps3disk_private *priv = ps3_system_bus_get_drvdata(&dev->sbd); |
c6131fa5 GU |
354 | struct lv1_ata_cmnd_block ata_cmnd; |
355 | u16 *id = dev->bounce_buf; | |
356 | u64 res; | |
357 | ||
358 | dev_dbg(&dev->sbd.core, "%s:%u: identify disk\n", __func__, __LINE__); | |
359 | ||
360 | memset(&ata_cmnd, 0, sizeof(struct lv1_ata_cmnd_block)); | |
361 | ata_cmnd.command = ATA_CMD_ID_ATA; | |
362 | ata_cmnd.sector_count = 1; | |
363 | ata_cmnd.size = ata_cmnd.arglen = ATA_ID_WORDS * 2; | |
364 | ata_cmnd.buffer = dev->bounce_lpar; | |
365 | ata_cmnd.proto = PIO_DATA_IN_PROTO; | |
366 | ata_cmnd.in_out = DIR_READ; | |
367 | ||
368 | res = ps3stor_send_command(dev, LV1_STORAGE_SEND_ATA_COMMAND, | |
369 | ps3_mm_phys_to_lpar(__pa(&ata_cmnd)), | |
370 | sizeof(ata_cmnd), ata_cmnd.buffer, | |
371 | ata_cmnd.arglen); | |
372 | if (res) { | |
e377c6e2 | 373 | dev_err(&dev->sbd.core, "%s:%u: identify disk failed 0x%llx\n", |
c6131fa5 GU |
374 | __func__, __LINE__, res); |
375 | return -EIO; | |
376 | } | |
377 | ||
378 | swap_buf_le16(id, ATA_ID_WORDS); | |
379 | ||
380 | /* All we're interested in are raw capacity and model name */ | |
381 | priv->raw_capacity = ata_id_n_sectors(id); | |
382 | ata_id_c_string(id, priv->model, ATA_ID_PROD, sizeof(priv->model)); | |
383 | return 0; | |
384 | } | |
385 | ||
c6131fa5 GU |
386 | static unsigned long ps3disk_mask; |
387 | ||
388 | static DEFINE_MUTEX(ps3disk_mask_mutex); | |
389 | ||
fab1adcf JA |
390 | static const struct blk_mq_ops ps3disk_mq_ops = { |
391 | .queue_rq = ps3disk_queue_rq, | |
392 | }; | |
393 | ||
8d85fce7 | 394 | static int ps3disk_probe(struct ps3_system_bus_device *_dev) |
c6131fa5 GU |
395 | { |
396 | struct ps3_storage_device *dev = to_ps3_storage_device(&_dev->core); | |
397 | struct ps3disk_private *priv; | |
398 | int error; | |
399 | unsigned int devidx; | |
400 | struct request_queue *queue; | |
401 | struct gendisk *gendisk; | |
402 | ||
403 | if (dev->blk_size < 512) { | |
404 | dev_err(&dev->sbd.core, | |
e377c6e2 | 405 | "%s:%u: cannot handle block size %llu\n", __func__, |
c6131fa5 GU |
406 | __LINE__, dev->blk_size); |
407 | return -EINVAL; | |
408 | } | |
409 | ||
410 | BUILD_BUG_ON(PS3DISK_MAX_DISKS > BITS_PER_LONG); | |
411 | mutex_lock(&ps3disk_mask_mutex); | |
412 | devidx = find_first_zero_bit(&ps3disk_mask, PS3DISK_MAX_DISKS); | |
413 | if (devidx >= PS3DISK_MAX_DISKS) { | |
414 | dev_err(&dev->sbd.core, "%s:%u: Too many disks\n", __func__, | |
415 | __LINE__); | |
416 | mutex_unlock(&ps3disk_mask_mutex); | |
417 | return -ENOSPC; | |
418 | } | |
419 | __set_bit(devidx, &ps3disk_mask); | |
420 | mutex_unlock(&ps3disk_mask_mutex); | |
421 | ||
422 | priv = kzalloc(sizeof(*priv), GFP_KERNEL); | |
423 | if (!priv) { | |
424 | error = -ENOMEM; | |
425 | goto fail; | |
426 | } | |
427 | ||
03fa68c2 | 428 | ps3_system_bus_set_drvdata(_dev, priv); |
c6131fa5 GU |
429 | spin_lock_init(&priv->lock); |
430 | ||
431 | dev->bounce_size = BOUNCE_SIZE; | |
432 | dev->bounce_buf = kmalloc(BOUNCE_SIZE, GFP_DMA); | |
433 | if (!dev->bounce_buf) { | |
434 | error = -ENOMEM; | |
435 | goto fail_free_priv; | |
436 | } | |
437 | ||
438 | error = ps3stor_setup(dev, ps3disk_interrupt); | |
439 | if (error) | |
440 | goto fail_free_bounce; | |
441 | ||
442 | ps3disk_identify(dev); | |
443 | ||
fab1adcf JA |
444 | queue = blk_mq_init_sq_queue(&priv->tag_set, &ps3disk_mq_ops, 1, |
445 | BLK_MQ_F_SHOULD_MERGE); | |
446 | if (IS_ERR(queue)) { | |
447 | dev_err(&dev->sbd.core, "%s:%u: blk_mq_init_queue failed\n", | |
c6131fa5 | 448 | __func__, __LINE__); |
fab1adcf | 449 | error = PTR_ERR(queue); |
c6131fa5 GU |
450 | goto fail_teardown; |
451 | } | |
452 | ||
453 | priv->queue = queue; | |
454 | queue->queuedata = dev; | |
455 | ||
086fa5ff | 456 | blk_queue_max_hw_sectors(queue, dev->bounce_size >> 9); |
c6131fa5 GU |
457 | blk_queue_segment_boundary(queue, -1UL); |
458 | blk_queue_dma_alignment(queue, dev->blk_size-1); | |
e1defc4f | 459 | blk_queue_logical_block_size(queue, dev->blk_size); |
c6131fa5 | 460 | |
12c95f13 | 461 | blk_queue_write_cache(queue, true, false); |
c6131fa5 | 462 | |
8a78362c | 463 | blk_queue_max_segments(queue, -1); |
c6131fa5 GU |
464 | blk_queue_max_segment_size(queue, dev->bounce_size); |
465 | ||
466 | gendisk = alloc_disk(PS3DISK_MINORS); | |
467 | if (!gendisk) { | |
468 | dev_err(&dev->sbd.core, "%s:%u: alloc_disk failed\n", __func__, | |
469 | __LINE__); | |
470 | error = -ENOMEM; | |
471 | goto fail_cleanup_queue; | |
472 | } | |
473 | ||
474 | priv->gendisk = gendisk; | |
475 | gendisk->major = ps3disk_major; | |
476 | gendisk->first_minor = devidx * PS3DISK_MINORS; | |
477 | gendisk->fops = &ps3disk_fops; | |
478 | gendisk->queue = queue; | |
479 | gendisk->private_data = dev; | |
c6131fa5 GU |
480 | snprintf(gendisk->disk_name, sizeof(gendisk->disk_name), PS3DISK_NAME, |
481 | devidx+'a'); | |
482 | priv->blocking_factor = dev->blk_size >> 9; | |
483 | set_capacity(gendisk, | |
484 | dev->regions[dev->region_idx].size*priv->blocking_factor); | |
485 | ||
486 | dev_info(&dev->sbd.core, | |
72deb455 | 487 | "%s is a %s (%llu MiB total, %llu MiB for OtherOS)\n", |
c6131fa5 GU |
488 | gendisk->disk_name, priv->model, priv->raw_capacity >> 11, |
489 | get_capacity(gendisk) >> 11); | |
490 | ||
fef912bf | 491 | device_add_disk(&dev->sbd.core, gendisk, NULL); |
c6131fa5 GU |
492 | return 0; |
493 | ||
494 | fail_cleanup_queue: | |
495 | blk_cleanup_queue(queue); | |
fab1adcf | 496 | blk_mq_free_tag_set(&priv->tag_set); |
c6131fa5 GU |
497 | fail_teardown: |
498 | ps3stor_teardown(dev); | |
499 | fail_free_bounce: | |
500 | kfree(dev->bounce_buf); | |
501 | fail_free_priv: | |
502 | kfree(priv); | |
03fa68c2 | 503 | ps3_system_bus_set_drvdata(_dev, NULL); |
c6131fa5 GU |
504 | fail: |
505 | mutex_lock(&ps3disk_mask_mutex); | |
506 | __clear_bit(devidx, &ps3disk_mask); | |
507 | mutex_unlock(&ps3disk_mask_mutex); | |
508 | return error; | |
509 | } | |
510 | ||
511 | static int ps3disk_remove(struct ps3_system_bus_device *_dev) | |
512 | { | |
513 | struct ps3_storage_device *dev = to_ps3_storage_device(&_dev->core); | |
03fa68c2 | 514 | struct ps3disk_private *priv = ps3_system_bus_get_drvdata(&dev->sbd); |
c6131fa5 GU |
515 | |
516 | mutex_lock(&ps3disk_mask_mutex); | |
f331c029 | 517 | __clear_bit(MINOR(disk_devt(priv->gendisk)) / PS3DISK_MINORS, |
c6131fa5 GU |
518 | &ps3disk_mask); |
519 | mutex_unlock(&ps3disk_mask_mutex); | |
520 | del_gendisk(priv->gendisk); | |
521 | blk_cleanup_queue(priv->queue); | |
fab1adcf | 522 | blk_mq_free_tag_set(&priv->tag_set); |
c6131fa5 GU |
523 | put_disk(priv->gendisk); |
524 | dev_notice(&dev->sbd.core, "Synchronizing disk cache\n"); | |
525 | ps3disk_sync_cache(dev); | |
526 | ps3stor_teardown(dev); | |
527 | kfree(dev->bounce_buf); | |
528 | kfree(priv); | |
03fa68c2 | 529 | ps3_system_bus_set_drvdata(_dev, NULL); |
c6131fa5 GU |
530 | return 0; |
531 | } | |
532 | ||
533 | static struct ps3_system_bus_driver ps3disk = { | |
534 | .match_id = PS3_MATCH_ID_STOR_DISK, | |
535 | .core.name = DEVICE_NAME, | |
536 | .core.owner = THIS_MODULE, | |
537 | .probe = ps3disk_probe, | |
538 | .remove = ps3disk_remove, | |
539 | .shutdown = ps3disk_remove, | |
540 | }; | |
541 | ||
542 | ||
543 | static int __init ps3disk_init(void) | |
544 | { | |
545 | int error; | |
546 | ||
547 | if (!firmware_has_feature(FW_FEATURE_PS3_LV1)) | |
548 | return -ENODEV; | |
549 | ||
550 | error = register_blkdev(0, DEVICE_NAME); | |
551 | if (error <= 0) { | |
552 | printk(KERN_ERR "%s:%u: register_blkdev failed %d\n", __func__, | |
553 | __LINE__, error); | |
554 | return error; | |
555 | } | |
556 | ps3disk_major = error; | |
557 | ||
558 | pr_info("%s:%u: registered block device major %d\n", __func__, | |
559 | __LINE__, ps3disk_major); | |
560 | ||
561 | error = ps3_system_bus_driver_register(&ps3disk); | |
562 | if (error) | |
563 | unregister_blkdev(ps3disk_major, DEVICE_NAME); | |
564 | ||
565 | return error; | |
566 | } | |
567 | ||
568 | static void __exit ps3disk_exit(void) | |
569 | { | |
570 | ps3_system_bus_driver_unregister(&ps3disk); | |
571 | unregister_blkdev(ps3disk_major, DEVICE_NAME); | |
572 | } | |
573 | ||
574 | module_init(ps3disk_init); | |
575 | module_exit(ps3disk_exit); | |
576 | ||
577 | MODULE_LICENSE("GPL"); | |
578 | MODULE_DESCRIPTION("PS3 Disk Storage Driver"); | |
579 | MODULE_AUTHOR("Sony Corporation"); | |
580 | MODULE_ALIAS(PS3_MODULE_ALIAS_STOR_DISK); |