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accel/ivpu: Move recovery work to system_unbound_wq
[drm/drm-misc.git] / drivers / net / wireless / ath / ath10k / snoc.c
blobd436a874cd5af40462e64083d5b5259cc45b2dc0
1 // SPDX-License-Identifier: ISC
2 /*
3 * Copyright (c) 2018 The Linux Foundation. All rights reserved.
4 */
5
6 #include <linux/bits.h>
7 #include <linux/clk.h>
8 #include <linux/kernel.h>
9 #include <linux/module.h>
10 #include <linux/of.h>
11 #include <linux/of_device.h>
12 #include <linux/platform_device.h>
13 #include <linux/property.h>
14 #include <linux/regulator/consumer.h>
15 #include <linux/remoteproc/qcom_rproc.h>
16 #include <linux/of_address.h>
17 #include <linux/iommu.h>
18
19 #include "ce.h"
20 #include "coredump.h"
21 #include "debug.h"
22 #include "hif.h"
23 #include "htc.h"
24 #include "snoc.h"
25
26 #define ATH10K_SNOC_RX_POST_RETRY_MS 50
27 #define CE_POLL_PIPE 4
28 #define ATH10K_SNOC_WAKE_IRQ 2
29
30 static char *const ce_name[] = {
31 "WLAN_CE_0",
32 "WLAN_CE_1",
33 "WLAN_CE_2",
34 "WLAN_CE_3",
35 "WLAN_CE_4",
36 "WLAN_CE_5",
37 "WLAN_CE_6",
38 "WLAN_CE_7",
39 "WLAN_CE_8",
40 "WLAN_CE_9",
41 "WLAN_CE_10",
42 "WLAN_CE_11",
43 };
44
45 static const char * const ath10k_regulators[] = {
46 "vdd-0.8-cx-mx",
47 "vdd-1.8-xo",
48 "vdd-1.3-rfa",
49 "vdd-3.3-ch0",
50 "vdd-3.3-ch1",
51 };
52
53 static const char * const ath10k_clocks[] = {
54 "cxo_ref_clk_pin", "qdss",
55 };
56
57 static void ath10k_snoc_htc_tx_cb(struct ath10k_ce_pipe *ce_state);
58 static void ath10k_snoc_htt_tx_cb(struct ath10k_ce_pipe *ce_state);
59 static void ath10k_snoc_htc_rx_cb(struct ath10k_ce_pipe *ce_state);
60 static void ath10k_snoc_htt_rx_cb(struct ath10k_ce_pipe *ce_state);
61 static void ath10k_snoc_htt_htc_rx_cb(struct ath10k_ce_pipe *ce_state);
62 static void ath10k_snoc_pktlog_rx_cb(struct ath10k_ce_pipe *ce_state);
63
64 static const struct ath10k_snoc_drv_priv drv_priv = {
65 .hw_rev = ATH10K_HW_WCN3990,
66 .dma_mask = DMA_BIT_MASK(35),
67 .msa_size = 0x100000,
68 };
69
70 #define WCN3990_SRC_WR_IDX_OFFSET 0x3C
71 #define WCN3990_DST_WR_IDX_OFFSET 0x40
72
73 static struct ath10k_shadow_reg_cfg target_shadow_reg_cfg_map[] = {
74 {
75 .ce_id = __cpu_to_le16(0),
76 .reg_offset = __cpu_to_le16(WCN3990_SRC_WR_IDX_OFFSET),
77 },
78
79 {
80 .ce_id = __cpu_to_le16(3),
81 .reg_offset = __cpu_to_le16(WCN3990_SRC_WR_IDX_OFFSET),
82 },
83
84 {
85 .ce_id = __cpu_to_le16(4),
86 .reg_offset = __cpu_to_le16(WCN3990_SRC_WR_IDX_OFFSET),
87 },
88
89 {
90 .ce_id = __cpu_to_le16(5),
91 .reg_offset = __cpu_to_le16(WCN3990_SRC_WR_IDX_OFFSET),
92 },
93
94 {
95 .ce_id = __cpu_to_le16(7),
96 .reg_offset = __cpu_to_le16(WCN3990_SRC_WR_IDX_OFFSET),
97 },
98
99 {
100 .ce_id = __cpu_to_le16(1),
101 .reg_offset = __cpu_to_le16(WCN3990_DST_WR_IDX_OFFSET),
102 },
103
104 {
105 .ce_id = __cpu_to_le16(2),
106 .reg_offset = __cpu_to_le16(WCN3990_DST_WR_IDX_OFFSET),
107 },
108
109 {
110 .ce_id = __cpu_to_le16(7),
111 .reg_offset = __cpu_to_le16(WCN3990_DST_WR_IDX_OFFSET),
112 },
113
114 {
115 .ce_id = __cpu_to_le16(8),
116 .reg_offset = __cpu_to_le16(WCN3990_DST_WR_IDX_OFFSET),
117 },
118
119 {
120 .ce_id = __cpu_to_le16(9),
121 .reg_offset = __cpu_to_le16(WCN3990_DST_WR_IDX_OFFSET),
122 },
123
124 {
125 .ce_id = __cpu_to_le16(10),
126 .reg_offset = __cpu_to_le16(WCN3990_DST_WR_IDX_OFFSET),
127 },
128
129 {
130 .ce_id = __cpu_to_le16(11),
131 .reg_offset = __cpu_to_le16(WCN3990_DST_WR_IDX_OFFSET),
132 },
133 };
134
135 static struct ce_attr host_ce_config_wlan[] = {
136 /* CE0: host->target HTC control streams */
137 {
138 .flags = CE_ATTR_FLAGS,
139 .src_nentries = 16,
140 .src_sz_max = 2048,
141 .dest_nentries = 0,
142 .send_cb = ath10k_snoc_htc_tx_cb,
143 },
144
145 /* CE1: target->host HTT + HTC control */
146 {
147 .flags = CE_ATTR_FLAGS,
148 .src_nentries = 0,
149 .src_sz_max = 2048,
150 .dest_nentries = 512,
151 .recv_cb = ath10k_snoc_htt_htc_rx_cb,
152 },
153
154 /* CE2: target->host WMI */
155 {
156 .flags = CE_ATTR_FLAGS,
157 .src_nentries = 0,
158 .src_sz_max = 2048,
159 .dest_nentries = 64,
160 .recv_cb = ath10k_snoc_htc_rx_cb,
161 },
162
163 /* CE3: host->target WMI */
164 {
165 .flags = CE_ATTR_FLAGS,
166 .src_nentries = 32,
167 .src_sz_max = 2048,
168 .dest_nentries = 0,
169 .send_cb = ath10k_snoc_htc_tx_cb,
170 },
171
172 /* CE4: host->target HTT */
173 {
174 .flags = CE_ATTR_FLAGS | CE_ATTR_DIS_INTR,
175 .src_nentries = 2048,
176 .src_sz_max = 256,
177 .dest_nentries = 0,
178 .send_cb = ath10k_snoc_htt_tx_cb,
179 },
180
181 /* CE5: target->host HTT (ipa_uc->target ) */
182 {
183 .flags = CE_ATTR_FLAGS,
184 .src_nentries = 0,
185 .src_sz_max = 512,
186 .dest_nentries = 512,
187 .recv_cb = ath10k_snoc_htt_rx_cb,
188 },
189
190 /* CE6: target autonomous hif_memcpy */
191 {
192 .flags = CE_ATTR_FLAGS,
193 .src_nentries = 0,
194 .src_sz_max = 0,
195 .dest_nentries = 0,
196 },
197
198 /* CE7: ce_diag, the Diagnostic Window */
199 {
200 .flags = CE_ATTR_FLAGS,
201 .src_nentries = 2,
202 .src_sz_max = 2048,
203 .dest_nentries = 2,
204 },
205
206 /* CE8: Target to uMC */
207 {
208 .flags = CE_ATTR_FLAGS,
209 .src_nentries = 0,
210 .src_sz_max = 2048,
211 .dest_nentries = 128,
212 },
213
214 /* CE9 target->host HTT */
215 {
216 .flags = CE_ATTR_FLAGS,
217 .src_nentries = 0,
218 .src_sz_max = 2048,
219 .dest_nentries = 512,
220 .recv_cb = ath10k_snoc_htt_htc_rx_cb,
221 },
222
223 /* CE10: target->host HTT */
224 {
225 .flags = CE_ATTR_FLAGS,
226 .src_nentries = 0,
227 .src_sz_max = 2048,
228 .dest_nentries = 512,
229 .recv_cb = ath10k_snoc_htt_htc_rx_cb,
230 },
231
232 /* CE11: target -> host PKTLOG */
233 {
234 .flags = CE_ATTR_FLAGS,
235 .src_nentries = 0,
236 .src_sz_max = 2048,
237 .dest_nentries = 512,
238 .recv_cb = ath10k_snoc_pktlog_rx_cb,
239 },
240 };
241
242 static struct ce_pipe_config target_ce_config_wlan[] = {
243 /* CE0: host->target HTC control and raw streams */
244 {
245 .pipenum = __cpu_to_le32(0),
246 .pipedir = __cpu_to_le32(PIPEDIR_OUT),
247 .nentries = __cpu_to_le32(32),
248 .nbytes_max = __cpu_to_le32(2048),
249 .flags = __cpu_to_le32(CE_ATTR_FLAGS),
250 .reserved = __cpu_to_le32(0),
251 },
252
253 /* CE1: target->host HTT + HTC control */
254 {
255 .pipenum = __cpu_to_le32(1),
256 .pipedir = __cpu_to_le32(PIPEDIR_IN),
257 .nentries = __cpu_to_le32(32),
258 .nbytes_max = __cpu_to_le32(2048),
259 .flags = __cpu_to_le32(CE_ATTR_FLAGS),
260 .reserved = __cpu_to_le32(0),
261 },
262
263 /* CE2: target->host WMI */
264 {
265 .pipenum = __cpu_to_le32(2),
266 .pipedir = __cpu_to_le32(PIPEDIR_IN),
267 .nentries = __cpu_to_le32(64),
268 .nbytes_max = __cpu_to_le32(2048),
269 .flags = __cpu_to_le32(CE_ATTR_FLAGS),
270 .reserved = __cpu_to_le32(0),
271 },
272
273 /* CE3: host->target WMI */
274 {
275 .pipenum = __cpu_to_le32(3),
276 .pipedir = __cpu_to_le32(PIPEDIR_OUT),
277 .nentries = __cpu_to_le32(32),
278 .nbytes_max = __cpu_to_le32(2048),
279 .flags = __cpu_to_le32(CE_ATTR_FLAGS),
280 .reserved = __cpu_to_le32(0),
281 },
282
283 /* CE4: host->target HTT */
284 {
285 .pipenum = __cpu_to_le32(4),
286 .pipedir = __cpu_to_le32(PIPEDIR_OUT),
287 .nentries = __cpu_to_le32(256),
288 .nbytes_max = __cpu_to_le32(256),
289 .flags = __cpu_to_le32(CE_ATTR_FLAGS | CE_ATTR_DIS_INTR),
290 .reserved = __cpu_to_le32(0),
291 },
292
293 /* CE5: target->host HTT (HIF->HTT) */
294 {
295 .pipenum = __cpu_to_le32(5),
296 .pipedir = __cpu_to_le32(PIPEDIR_OUT),
297 .nentries = __cpu_to_le32(1024),
298 .nbytes_max = __cpu_to_le32(64),
299 .flags = __cpu_to_le32(CE_ATTR_FLAGS | CE_ATTR_DIS_INTR),
300 .reserved = __cpu_to_le32(0),
301 },
302
303 /* CE6: Reserved for target autonomous hif_memcpy */
304 {
305 .pipenum = __cpu_to_le32(6),
306 .pipedir = __cpu_to_le32(PIPEDIR_INOUT),
307 .nentries = __cpu_to_le32(32),
308 .nbytes_max = __cpu_to_le32(16384),
309 .flags = __cpu_to_le32(CE_ATTR_FLAGS),
310 .reserved = __cpu_to_le32(0),
311 },
312
313 /* CE7 used only by Host */
314 {
315 .pipenum = __cpu_to_le32(7),
316 .pipedir = __cpu_to_le32(4),
317 .nentries = __cpu_to_le32(0),
318 .nbytes_max = __cpu_to_le32(0),
319 .flags = __cpu_to_le32(CE_ATTR_FLAGS | CE_ATTR_DIS_INTR),
320 .reserved = __cpu_to_le32(0),
321 },
322
323 /* CE8 Target to uMC */
324 {
325 .pipenum = __cpu_to_le32(8),
326 .pipedir = __cpu_to_le32(PIPEDIR_IN),
327 .nentries = __cpu_to_le32(32),
328 .nbytes_max = __cpu_to_le32(2048),
329 .flags = __cpu_to_le32(0),
330 .reserved = __cpu_to_le32(0),
331 },
332
333 /* CE9 target->host HTT */
334 {
335 .pipenum = __cpu_to_le32(9),
336 .pipedir = __cpu_to_le32(PIPEDIR_IN),
337 .nentries = __cpu_to_le32(32),
338 .nbytes_max = __cpu_to_le32(2048),
339 .flags = __cpu_to_le32(CE_ATTR_FLAGS),
340 .reserved = __cpu_to_le32(0),
341 },
342
343 /* CE10 target->host HTT */
344 {
345 .pipenum = __cpu_to_le32(10),
346 .pipedir = __cpu_to_le32(PIPEDIR_IN),
347 .nentries = __cpu_to_le32(32),
348 .nbytes_max = __cpu_to_le32(2048),
349 .flags = __cpu_to_le32(CE_ATTR_FLAGS),
350 .reserved = __cpu_to_le32(0),
351 },
352
353 /* CE11 target autonomous qcache memcpy */
354 {
355 .pipenum = __cpu_to_le32(11),
356 .pipedir = __cpu_to_le32(PIPEDIR_IN),
357 .nentries = __cpu_to_le32(32),
358 .nbytes_max = __cpu_to_le32(2048),
359 .flags = __cpu_to_le32(CE_ATTR_FLAGS),
360 .reserved = __cpu_to_le32(0),
361 },
362 };
363
364 static struct ce_service_to_pipe target_service_to_ce_map_wlan[] = {
365 {
366 __cpu_to_le32(ATH10K_HTC_SVC_ID_WMI_DATA_VO),
367 __cpu_to_le32(PIPEDIR_OUT), /* out = UL = host -> target */
368 __cpu_to_le32(3),
369 },
370 {
371 __cpu_to_le32(ATH10K_HTC_SVC_ID_WMI_DATA_VO),
372 __cpu_to_le32(PIPEDIR_IN), /* in = DL = target -> host */
373 __cpu_to_le32(2),
374 },
375 {
376 __cpu_to_le32(ATH10K_HTC_SVC_ID_WMI_DATA_BK),
377 __cpu_to_le32(PIPEDIR_OUT), /* out = UL = host -> target */
378 __cpu_to_le32(3),
379 },
380 {
381 __cpu_to_le32(ATH10K_HTC_SVC_ID_WMI_DATA_BK),
382 __cpu_to_le32(PIPEDIR_IN), /* in = DL = target -> host */
383 __cpu_to_le32(2),
384 },
385 {
386 __cpu_to_le32(ATH10K_HTC_SVC_ID_WMI_DATA_BE),
387 __cpu_to_le32(PIPEDIR_OUT), /* out = UL = host -> target */
388 __cpu_to_le32(3),
389 },
390 {
391 __cpu_to_le32(ATH10K_HTC_SVC_ID_WMI_DATA_BE),
392 __cpu_to_le32(PIPEDIR_IN), /* in = DL = target -> host */
393 __cpu_to_le32(2),
394 },
395 {
396 __cpu_to_le32(ATH10K_HTC_SVC_ID_WMI_DATA_VI),
397 __cpu_to_le32(PIPEDIR_OUT), /* out = UL = host -> target */
398 __cpu_to_le32(3),
399 },
400 {
401 __cpu_to_le32(ATH10K_HTC_SVC_ID_WMI_DATA_VI),
402 __cpu_to_le32(PIPEDIR_IN), /* in = DL = target -> host */
403 __cpu_to_le32(2),
404 },
405 {
406 __cpu_to_le32(ATH10K_HTC_SVC_ID_WMI_CONTROL),
407 __cpu_to_le32(PIPEDIR_OUT), /* out = UL = host -> target */
408 __cpu_to_le32(3),
409 },
410 {
411 __cpu_to_le32(ATH10K_HTC_SVC_ID_WMI_CONTROL),
412 __cpu_to_le32(PIPEDIR_IN), /* in = DL = target -> host */
413 __cpu_to_le32(2),
414 },
415 {
416 __cpu_to_le32(ATH10K_HTC_SVC_ID_RSVD_CTRL),
417 __cpu_to_le32(PIPEDIR_OUT), /* out = UL = host -> target */
418 __cpu_to_le32(0),
419 },
420 {
421 __cpu_to_le32(ATH10K_HTC_SVC_ID_RSVD_CTRL),
422 __cpu_to_le32(PIPEDIR_IN), /* in = DL = target -> host */
423 __cpu_to_le32(2),
424 },
425 { /* not used */
426 __cpu_to_le32(ATH10K_HTC_SVC_ID_TEST_RAW_STREAMS),
427 __cpu_to_le32(PIPEDIR_OUT), /* out = UL = host -> target */
428 __cpu_to_le32(0),
429 },
430 { /* not used */
431 __cpu_to_le32(ATH10K_HTC_SVC_ID_TEST_RAW_STREAMS),
432 __cpu_to_le32(PIPEDIR_IN), /* in = DL = target -> host */
433 __cpu_to_le32(2),
434 },
435 {
436 __cpu_to_le32(ATH10K_HTC_SVC_ID_HTT_DATA_MSG),
437 __cpu_to_le32(PIPEDIR_OUT), /* out = UL = host -> target */
438 __cpu_to_le32(4),
439 },
440 {
441 __cpu_to_le32(ATH10K_HTC_SVC_ID_HTT_DATA_MSG),
442 __cpu_to_le32(PIPEDIR_IN), /* in = DL = target -> host */
443 __cpu_to_le32(1),
444 },
445 { /* not used */
446 __cpu_to_le32(ATH10K_HTC_SVC_ID_TEST_RAW_STREAMS),
447 __cpu_to_le32(PIPEDIR_OUT),
448 __cpu_to_le32(5),
449 },
450 { /* in = DL = target -> host */
451 __cpu_to_le32(ATH10K_HTC_SVC_ID_HTT_DATA2_MSG),
452 __cpu_to_le32(PIPEDIR_IN), /* in = DL = target -> host */
453 __cpu_to_le32(9),
454 },
455 { /* in = DL = target -> host */
456 __cpu_to_le32(ATH10K_HTC_SVC_ID_HTT_DATA3_MSG),
457 __cpu_to_le32(PIPEDIR_IN), /* in = DL = target -> host */
458 __cpu_to_le32(10),
459 },
460 { /* in = DL = target -> host pktlog */
461 __cpu_to_le32(ATH10K_HTC_SVC_ID_HTT_LOG_MSG),
462 __cpu_to_le32(PIPEDIR_IN), /* in = DL = target -> host */
463 __cpu_to_le32(11),
464 },
465 /* (Additions here) */
466
467 { /* must be last */
468 __cpu_to_le32(0),
469 __cpu_to_le32(0),
470 __cpu_to_le32(0),
471 },
472 };
473
474 static void ath10k_snoc_write32(struct ath10k *ar, u32 offset, u32 value)
475 {
476 struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);
477
478 iowrite32(value, ar_snoc->mem + offset);
479 }
480
481 static u32 ath10k_snoc_read32(struct ath10k *ar, u32 offset)
482 {
483 struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);
484 u32 val;
485
486 val = ioread32(ar_snoc->mem + offset);
487
488 return val;
489 }
490
491 static int __ath10k_snoc_rx_post_buf(struct ath10k_snoc_pipe *pipe)
492 {
493 struct ath10k_ce_pipe *ce_pipe = pipe->ce_hdl;
494 struct ath10k *ar = pipe->hif_ce_state;
495 struct ath10k_ce *ce = ath10k_ce_priv(ar);
496 struct sk_buff *skb;
497 dma_addr_t paddr;
498 int ret;
499
500 skb = dev_alloc_skb(pipe->buf_sz);
501 if (!skb)
502 return -ENOMEM;
503
504 WARN_ONCE((unsigned long)skb->data & 3, "unaligned skb");
505
506 paddr = dma_map_single(ar->dev, skb->data,
507 skb->len + skb_tailroom(skb),
508 DMA_FROM_DEVICE);
509 if (unlikely(dma_mapping_error(ar->dev, paddr))) {
510 ath10k_warn(ar, "failed to dma map snoc rx buf\n");
511 dev_kfree_skb_any(skb);
512 return -EIO;
513 }
514
515 ATH10K_SKB_RXCB(skb)->paddr = paddr;
516
517 spin_lock_bh(&ce->ce_lock);
518 ret = ce_pipe->ops->ce_rx_post_buf(ce_pipe, skb, paddr);
519 spin_unlock_bh(&ce->ce_lock);
520 if (ret) {
521 dma_unmap_single(ar->dev, paddr, skb->len + skb_tailroom(skb),
522 DMA_FROM_DEVICE);
523 dev_kfree_skb_any(skb);
524 return ret;
525 }
526
527 return 0;
528 }
529
530 static void ath10k_snoc_rx_post_pipe(struct ath10k_snoc_pipe *pipe)
531 {
532 struct ath10k *ar = pipe->hif_ce_state;
533 struct ath10k_ce *ce = ath10k_ce_priv(ar);
534 struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);
535 struct ath10k_ce_pipe *ce_pipe = pipe->ce_hdl;
536 int ret, num;
537
538 if (pipe->buf_sz == 0)
539 return;
540
541 if (!ce_pipe->dest_ring)
542 return;
543
544 spin_lock_bh(&ce->ce_lock);
545 num = __ath10k_ce_rx_num_free_bufs(ce_pipe);
546 spin_unlock_bh(&ce->ce_lock);
547 while (num--) {
548 ret = __ath10k_snoc_rx_post_buf(pipe);
549 if (ret) {
550 if (ret == -ENOSPC)
551 break;
552 ath10k_warn(ar, "failed to post rx buf: %d\n", ret);
553 mod_timer(&ar_snoc->rx_post_retry, jiffies +
554 ATH10K_SNOC_RX_POST_RETRY_MS);
555 break;
556 }
557 }
558 }
559
560 static void ath10k_snoc_rx_post(struct ath10k *ar)
561 {
562 struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);
563 int i;
564
565 for (i = 0; i < CE_COUNT; i++)
566 ath10k_snoc_rx_post_pipe(&ar_snoc->pipe_info[i]);
567 }
568
569 static void ath10k_snoc_process_rx_cb(struct ath10k_ce_pipe *ce_state,
570 void (*callback)(struct ath10k *ar,
571 struct sk_buff *skb))
572 {
573 struct ath10k *ar = ce_state->ar;
574 struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);
575 struct ath10k_snoc_pipe *pipe_info = &ar_snoc->pipe_info[ce_state->id];
576 struct sk_buff *skb;
577 struct sk_buff_head list;
578 void *transfer_context;
579 unsigned int nbytes, max_nbytes;
580
581 __skb_queue_head_init(&list);
582 while (ath10k_ce_completed_recv_next(ce_state, &transfer_context,
583 &nbytes) == 0) {
584 skb = transfer_context;
585 max_nbytes = skb->len + skb_tailroom(skb);
586 dma_unmap_single(ar->dev, ATH10K_SKB_RXCB(skb)->paddr,
587 max_nbytes, DMA_FROM_DEVICE);
588
589 if (unlikely(max_nbytes < nbytes)) {
590 ath10k_warn(ar, "rxed more than expected (nbytes %d, max %d)\n",
591 nbytes, max_nbytes);
592 dev_kfree_skb_any(skb);
593 continue;
594 }
595
596 skb_put(skb, nbytes);
597 __skb_queue_tail(&list, skb);
598 }
599
600 while ((skb = __skb_dequeue(&list))) {
601 ath10k_dbg(ar, ATH10K_DBG_SNOC, "snoc rx ce pipe %d len %d\n",
602 ce_state->id, skb->len);
603
604 callback(ar, skb);
605 }
606
607 ath10k_snoc_rx_post_pipe(pipe_info);
608 }
609
610 static void ath10k_snoc_htc_rx_cb(struct ath10k_ce_pipe *ce_state)
611 {
612 ath10k_snoc_process_rx_cb(ce_state, ath10k_htc_rx_completion_handler);
613 }
614
615 static void ath10k_snoc_htt_htc_rx_cb(struct ath10k_ce_pipe *ce_state)
616 {
617 /* CE4 polling needs to be done whenever CE pipe which transports
618 * HTT Rx (target->host) is processed.
619 */
620 ath10k_ce_per_engine_service(ce_state->ar, CE_POLL_PIPE);
621
622 ath10k_snoc_process_rx_cb(ce_state, ath10k_htc_rx_completion_handler);
623 }
624
625 /* Called by lower (CE) layer when data is received from the Target.
626 * WCN3990 firmware uses separate CE(CE11) to transfer pktlog data.
627 */
628 static void ath10k_snoc_pktlog_rx_cb(struct ath10k_ce_pipe *ce_state)
629 {
630 ath10k_snoc_process_rx_cb(ce_state, ath10k_htc_rx_completion_handler);
631 }
632
633 static void ath10k_snoc_htt_rx_deliver(struct ath10k *ar, struct sk_buff *skb)
634 {
635 skb_pull(skb, sizeof(struct ath10k_htc_hdr));
636 ath10k_htt_t2h_msg_handler(ar, skb);
637 }
638
639 static void ath10k_snoc_htt_rx_cb(struct ath10k_ce_pipe *ce_state)
640 {
641 ath10k_ce_per_engine_service(ce_state->ar, CE_POLL_PIPE);
642 ath10k_snoc_process_rx_cb(ce_state, ath10k_snoc_htt_rx_deliver);
643 }
644
645 static void ath10k_snoc_rx_replenish_retry(struct timer_list *t)
646 {
647 struct ath10k_snoc *ar_snoc = from_timer(ar_snoc, t, rx_post_retry);
648 struct ath10k *ar = ar_snoc->ar;
649
650 ath10k_snoc_rx_post(ar);
651 }
652
653 static void ath10k_snoc_htc_tx_cb(struct ath10k_ce_pipe *ce_state)
654 {
655 struct ath10k *ar = ce_state->ar;
656 struct sk_buff_head list;
657 struct sk_buff *skb;
658
659 __skb_queue_head_init(&list);
660 while (ath10k_ce_completed_send_next(ce_state, (void **)&skb) == 0) {
661 if (!skb)
662 continue;
663
664 __skb_queue_tail(&list, skb);
665 }
666
667 while ((skb = __skb_dequeue(&list)))
668 ath10k_htc_tx_completion_handler(ar, skb);
669 }
670
671 static void ath10k_snoc_htt_tx_cb(struct ath10k_ce_pipe *ce_state)
672 {
673 struct ath10k *ar = ce_state->ar;
674 struct sk_buff *skb;
675
676 while (ath10k_ce_completed_send_next(ce_state, (void **)&skb) == 0) {
677 if (!skb)
678 continue;
679
680 dma_unmap_single(ar->dev, ATH10K_SKB_CB(skb)->paddr,
681 skb->len, DMA_TO_DEVICE);
682 ath10k_htt_hif_tx_complete(ar, skb);
683 }
684 }
685
686 static int ath10k_snoc_hif_tx_sg(struct ath10k *ar, u8 pipe_id,
687 struct ath10k_hif_sg_item *items, int n_items)
688 {
689 struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);
690 struct ath10k_ce *ce = ath10k_ce_priv(ar);
691 struct ath10k_snoc_pipe *snoc_pipe;
692 struct ath10k_ce_pipe *ce_pipe;
693 int err, i = 0;
694
695 snoc_pipe = &ar_snoc->pipe_info[pipe_id];
696 ce_pipe = snoc_pipe->ce_hdl;
697 spin_lock_bh(&ce->ce_lock);
698
699 for (i = 0; i < n_items - 1; i++) {
700 ath10k_dbg(ar, ATH10K_DBG_SNOC,
701 "snoc tx item %d paddr %pad len %d n_items %d\n",
702 i, &items[i].paddr, items[i].len, n_items);
703
704 err = ath10k_ce_send_nolock(ce_pipe,
705 items[i].transfer_context,
706 items[i].paddr,
707 items[i].len,
708 items[i].transfer_id,
709 CE_SEND_FLAG_GATHER);
710 if (err)
711 goto err;
712 }
713
714 ath10k_dbg(ar, ATH10K_DBG_SNOC,
715 "snoc tx item %d paddr %pad len %d n_items %d\n",
716 i, &items[i].paddr, items[i].len, n_items);
717
718 err = ath10k_ce_send_nolock(ce_pipe,
719 items[i].transfer_context,
720 items[i].paddr,
721 items[i].len,
722 items[i].transfer_id,
723 0);
724 if (err)
725 goto err;
726
727 spin_unlock_bh(&ce->ce_lock);
728
729 return 0;
730
731 err:
732 for (; i > 0; i--)
733 __ath10k_ce_send_revert(ce_pipe);
734
735 spin_unlock_bh(&ce->ce_lock);
736 return err;
737 }
738
739 static int ath10k_snoc_hif_get_target_info(struct ath10k *ar,
740 struct bmi_target_info *target_info)
741 {
742 target_info->version = ATH10K_HW_WCN3990;
743 target_info->type = ATH10K_HW_WCN3990;
744
745 return 0;
746 }
747
748 static u16 ath10k_snoc_hif_get_free_queue_number(struct ath10k *ar, u8 pipe)
749 {
750 struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);
751
752 ath10k_dbg(ar, ATH10K_DBG_SNOC, "hif get free queue number\n");
753
754 return ath10k_ce_num_free_src_entries(ar_snoc->pipe_info[pipe].ce_hdl);
755 }
756
757 static void ath10k_snoc_hif_send_complete_check(struct ath10k *ar, u8 pipe,
758 int force)
759 {
760 int resources;
761
762 ath10k_dbg(ar, ATH10K_DBG_SNOC, "snoc hif send complete check\n");
763
764 if (!force) {
765 resources = ath10k_snoc_hif_get_free_queue_number(ar, pipe);
766
767 if (resources > (host_ce_config_wlan[pipe].src_nentries >> 1))
768 return;
769 }
770 ath10k_ce_per_engine_service(ar, pipe);
771 }
772
773 static int ath10k_snoc_hif_map_service_to_pipe(struct ath10k *ar,
774 u16 service_id,
775 u8 *ul_pipe, u8 *dl_pipe)
776 {
777 const struct ce_service_to_pipe *entry;
778 bool ul_set = false, dl_set = false;
779 int i;
780
781 ath10k_dbg(ar, ATH10K_DBG_SNOC, "snoc hif map service\n");
782
783 for (i = 0; i < ARRAY_SIZE(target_service_to_ce_map_wlan); i++) {
784 entry = &target_service_to_ce_map_wlan[i];
785
786 if (__le32_to_cpu(entry->service_id) != service_id)
787 continue;
788
789 switch (__le32_to_cpu(entry->pipedir)) {
790 case PIPEDIR_NONE:
791 break;
792 case PIPEDIR_IN:
793 WARN_ON(dl_set);
794 *dl_pipe = __le32_to_cpu(entry->pipenum);
795 dl_set = true;
796 break;
797 case PIPEDIR_OUT:
798 WARN_ON(ul_set);
799 *ul_pipe = __le32_to_cpu(entry->pipenum);
800 ul_set = true;
801 break;
802 case PIPEDIR_INOUT:
803 WARN_ON(dl_set);
804 WARN_ON(ul_set);
805 *dl_pipe = __le32_to_cpu(entry->pipenum);
806 *ul_pipe = __le32_to_cpu(entry->pipenum);
807 dl_set = true;
808 ul_set = true;
809 break;
810 }
811 }
812
813 if (!ul_set || !dl_set)
814 return -ENOENT;
815
816 return 0;
817 }
818
819 static void ath10k_snoc_hif_get_default_pipe(struct ath10k *ar,
820 u8 *ul_pipe, u8 *dl_pipe)
821 {
822 ath10k_dbg(ar, ATH10K_DBG_SNOC, "snoc hif get default pipe\n");
823
824 (void)ath10k_snoc_hif_map_service_to_pipe(ar,
825 ATH10K_HTC_SVC_ID_RSVD_CTRL,
826 ul_pipe, dl_pipe);
827 }
828
829 static inline void ath10k_snoc_irq_disable(struct ath10k *ar)
830 {
831 struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);
832 int id;
833
834 for (id = 0; id < CE_COUNT_MAX; id++)
835 disable_irq(ar_snoc->ce_irqs[id].irq_line);
836 }
837
838 static inline void ath10k_snoc_irq_enable(struct ath10k *ar)
839 {
840 struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);
841 int id;
842
843 for (id = 0; id < CE_COUNT_MAX; id++)
844 enable_irq(ar_snoc->ce_irqs[id].irq_line);
845 }
846
847 static void ath10k_snoc_rx_pipe_cleanup(struct ath10k_snoc_pipe *snoc_pipe)
848 {
849 struct ath10k_ce_pipe *ce_pipe;
850 struct ath10k_ce_ring *ce_ring;
851 struct sk_buff *skb;
852 struct ath10k *ar;
853 int i;
854
855 ar = snoc_pipe->hif_ce_state;
856 ce_pipe = snoc_pipe->ce_hdl;
857 ce_ring = ce_pipe->dest_ring;
858
859 if (!ce_ring)
860 return;
861
862 if (!snoc_pipe->buf_sz)
863 return;
864
865 for (i = 0; i < ce_ring->nentries; i++) {
866 skb = ce_ring->per_transfer_context[i];
867 if (!skb)
868 continue;
869
870 ce_ring->per_transfer_context[i] = NULL;
871
872 dma_unmap_single(ar->dev, ATH10K_SKB_RXCB(skb)->paddr,
873 skb->len + skb_tailroom(skb),
874 DMA_FROM_DEVICE);
875 dev_kfree_skb_any(skb);
876 }
877 }
878
879 static void ath10k_snoc_tx_pipe_cleanup(struct ath10k_snoc_pipe *snoc_pipe)
880 {
881 struct ath10k_ce_pipe *ce_pipe;
882 struct ath10k_ce_ring *ce_ring;
883 struct sk_buff *skb;
884 struct ath10k *ar;
885 int i;
886
887 ar = snoc_pipe->hif_ce_state;
888 ce_pipe = snoc_pipe->ce_hdl;
889 ce_ring = ce_pipe->src_ring;
890
891 if (!ce_ring)
892 return;
893
894 if (!snoc_pipe->buf_sz)
895 return;
896
897 for (i = 0; i < ce_ring->nentries; i++) {
898 skb = ce_ring->per_transfer_context[i];
899 if (!skb)
900 continue;
901
902 ce_ring->per_transfer_context[i] = NULL;
903
904 ath10k_htc_tx_completion_handler(ar, skb);
905 }
906 }
907
908 static void ath10k_snoc_buffer_cleanup(struct ath10k *ar)
909 {
910 struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);
911 struct ath10k_snoc_pipe *pipe_info;
912 int pipe_num;
913
914 del_timer_sync(&ar_snoc->rx_post_retry);
915 for (pipe_num = 0; pipe_num < CE_COUNT; pipe_num++) {
916 pipe_info = &ar_snoc->pipe_info[pipe_num];
917 ath10k_snoc_rx_pipe_cleanup(pipe_info);
918 ath10k_snoc_tx_pipe_cleanup(pipe_info);
919 }
920 }
921
922 static void ath10k_snoc_hif_stop(struct ath10k *ar)
923 {
924 if (!test_bit(ATH10K_FLAG_CRASH_FLUSH, &ar->dev_flags))
925 ath10k_snoc_irq_disable(ar);
926
927 ath10k_core_napi_sync_disable(ar);
928 ath10k_snoc_buffer_cleanup(ar);
929 ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot hif stop\n");
930 }
931
932 static int ath10k_snoc_hif_start(struct ath10k *ar)
933 {
934 struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);
935
936 bitmap_clear(ar_snoc->pending_ce_irqs, 0, CE_COUNT_MAX);
937
938 dev_set_threaded(ar->napi_dev, true);
939 ath10k_core_napi_enable(ar);
940 ath10k_snoc_irq_enable(ar);
941 ath10k_snoc_rx_post(ar);
942
943 clear_bit(ATH10K_SNOC_FLAG_RECOVERY, &ar_snoc->flags);
944
945 ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot hif start\n");
946
947 return 0;
948 }
949
950 static int ath10k_snoc_init_pipes(struct ath10k *ar)
951 {
952 int i, ret;
953
954 for (i = 0; i < CE_COUNT; i++) {
955 ret = ath10k_ce_init_pipe(ar, i, &host_ce_config_wlan[i]);
956 if (ret) {
957 ath10k_err(ar, "failed to initialize copy engine pipe %d: %d\n",
958 i, ret);
959 return ret;
960 }
961 }
962
963 return 0;
964 }
965
966 static int ath10k_snoc_wlan_enable(struct ath10k *ar,
967 enum ath10k_firmware_mode fw_mode)
968 {
969 struct ath10k_tgt_pipe_cfg tgt_cfg[CE_COUNT_MAX];
970 struct ath10k_qmi_wlan_enable_cfg cfg;
971 enum wlfw_driver_mode_enum_v01 mode;
972 int pipe_num;
973
974 for (pipe_num = 0; pipe_num < CE_COUNT_MAX; pipe_num++) {
975 tgt_cfg[pipe_num].pipe_num =
976 target_ce_config_wlan[pipe_num].pipenum;
977 tgt_cfg[pipe_num].pipe_dir =
978 target_ce_config_wlan[pipe_num].pipedir;
979 tgt_cfg[pipe_num].nentries =
980 target_ce_config_wlan[pipe_num].nentries;
981 tgt_cfg[pipe_num].nbytes_max =
982 target_ce_config_wlan[pipe_num].nbytes_max;
983 tgt_cfg[pipe_num].flags =
984 target_ce_config_wlan[pipe_num].flags;
985 tgt_cfg[pipe_num].reserved = 0;
986 }
987
988 cfg.num_ce_tgt_cfg = sizeof(target_ce_config_wlan) /
989 sizeof(struct ath10k_tgt_pipe_cfg);
990 cfg.ce_tgt_cfg = (struct ath10k_tgt_pipe_cfg *)
991 &tgt_cfg;
992 cfg.num_ce_svc_pipe_cfg = sizeof(target_service_to_ce_map_wlan) /
993 sizeof(struct ath10k_svc_pipe_cfg);
994 cfg.ce_svc_cfg = (struct ath10k_svc_pipe_cfg *)
995 &target_service_to_ce_map_wlan;
996 cfg.num_shadow_reg_cfg = ARRAY_SIZE(target_shadow_reg_cfg_map);
997 cfg.shadow_reg_cfg = (struct ath10k_shadow_reg_cfg *)
998 &target_shadow_reg_cfg_map;
999
1000 switch (fw_mode) {
1001 case ATH10K_FIRMWARE_MODE_NORMAL:
1002 mode = QMI_WLFW_MISSION_V01;
1003 break;
1004 case ATH10K_FIRMWARE_MODE_UTF:
1005 mode = QMI_WLFW_FTM_V01;
1006 break;
1007 default:
1008 ath10k_err(ar, "invalid firmware mode %d\n", fw_mode);
1009 return -EINVAL;
1010 }
1011
1012 return ath10k_qmi_wlan_enable(ar, &cfg, mode,
1013 NULL);
1014 }
1015
1016 static int ath10k_hw_power_on(struct ath10k *ar)
1017 {
1018 struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);
1019 int ret;
1020
1021 ath10k_dbg(ar, ATH10K_DBG_SNOC, "soc power on\n");
1022
1023 ret = regulator_bulk_enable(ar_snoc->num_vregs, ar_snoc->vregs);
1024 if (ret)
1025 return ret;
1026
1027 ret = clk_bulk_prepare_enable(ar_snoc->num_clks, ar_snoc->clks);
1028 if (ret)
1029 goto vreg_off;
1030
1031 return ret;
1032
1033 vreg_off:
1034 regulator_bulk_disable(ar_snoc->num_vregs, ar_snoc->vregs);
1035 return ret;
1036 }
1037
1038 static int ath10k_hw_power_off(struct ath10k *ar)
1039 {
1040 struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);
1041
1042 ath10k_dbg(ar, ATH10K_DBG_SNOC, "soc power off\n");
1043
1044 clk_bulk_disable_unprepare(ar_snoc->num_clks, ar_snoc->clks);
1045
1046 return regulator_bulk_disable(ar_snoc->num_vregs, ar_snoc->vregs);
1047 }
1048
1049 static void ath10k_snoc_wlan_disable(struct ath10k *ar)
1050 {
1051 struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);
1052
1053 /* If both ATH10K_FLAG_CRASH_FLUSH and ATH10K_SNOC_FLAG_RECOVERY
1054 * flags are not set, it means that the driver has restarted
1055 * due to a crash inject via debugfs. In this case, the driver
1056 * needs to restart the firmware and hence send qmi wlan disable,
1057 * during the driver restart sequence.
1058 */
1059 if (!test_bit(ATH10K_FLAG_CRASH_FLUSH, &ar->dev_flags) ||
1060 !test_bit(ATH10K_SNOC_FLAG_RECOVERY, &ar_snoc->flags))
1061 ath10k_qmi_wlan_disable(ar);
1062 }
1063
1064 static void ath10k_snoc_hif_power_down(struct ath10k *ar)
1065 {
1066 ath10k_dbg(ar, ATH10K_DBG_BOOT, "boot hif power down\n");
1067
1068 ath10k_snoc_wlan_disable(ar);
1069 ath10k_ce_free_rri(ar);
1070 ath10k_hw_power_off(ar);
1071 }
1072
1073 static int ath10k_snoc_hif_power_up(struct ath10k *ar,
1074 enum ath10k_firmware_mode fw_mode)
1075 {
1076 int ret;
1077
1078 ath10k_dbg(ar, ATH10K_DBG_SNOC, "%s:WCN3990 driver state = %d\n",
1079 __func__, ar->state);
1080
1081 ret = ath10k_hw_power_on(ar);
1082 if (ret) {
1083 ath10k_err(ar, "failed to power on device: %d\n", ret);
1084 return ret;
1085 }
1086
1087 ret = ath10k_snoc_wlan_enable(ar, fw_mode);
1088 if (ret) {
1089 ath10k_err(ar, "failed to enable wcn3990: %d\n", ret);
1090 goto err_hw_power_off;
1091 }
1092
1093 ath10k_ce_alloc_rri(ar);
1094
1095 ret = ath10k_snoc_init_pipes(ar);
1096 if (ret) {
1097 ath10k_err(ar, "failed to initialize CE: %d\n", ret);
1098 goto err_free_rri;
1099 }
1100
1101 ath10k_ce_enable_interrupts(ar);
1102
1103 return 0;
1104
1105 err_free_rri:
1106 ath10k_ce_free_rri(ar);
1107 ath10k_snoc_wlan_disable(ar);
1108
1109 err_hw_power_off:
1110 ath10k_hw_power_off(ar);
1111
1112 return ret;
1113 }
1114
1115 static int ath10k_snoc_hif_set_target_log_mode(struct ath10k *ar,
1116 u8 fw_log_mode)
1117 {
1118 u8 fw_dbg_mode;
1119
1120 if (fw_log_mode)
1121 fw_dbg_mode = ATH10K_ENABLE_FW_LOG_CE;
1122 else
1123 fw_dbg_mode = ATH10K_ENABLE_FW_LOG_DIAG;
1124
1125 return ath10k_qmi_set_fw_log_mode(ar, fw_dbg_mode);
1126 }
1127
1128 #ifdef CONFIG_PM
1129 static int ath10k_snoc_hif_suspend(struct ath10k *ar)
1130 {
1131 struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);
1132 int ret;
1133
1134 if (!device_may_wakeup(ar->dev))
1135 return -EPERM;
1136
1137 ret = enable_irq_wake(ar_snoc->ce_irqs[ATH10K_SNOC_WAKE_IRQ].irq_line);
1138 if (ret) {
1139 ath10k_err(ar, "failed to enable wakeup irq :%d\n", ret);
1140 return ret;
1141 }
1142
1143 ath10k_dbg(ar, ATH10K_DBG_SNOC, "snoc device suspended\n");
1144
1145 return ret;
1146 }
1147
1148 static int ath10k_snoc_hif_resume(struct ath10k *ar)
1149 {
1150 struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);
1151 int ret;
1152
1153 if (!device_may_wakeup(ar->dev))
1154 return -EPERM;
1155
1156 ret = disable_irq_wake(ar_snoc->ce_irqs[ATH10K_SNOC_WAKE_IRQ].irq_line);
1157 if (ret) {
1158 ath10k_err(ar, "failed to disable wakeup irq: %d\n", ret);
1159 return ret;
1160 }
1161
1162 ath10k_dbg(ar, ATH10K_DBG_SNOC, "snoc device resumed\n");
1163
1164 return ret;
1165 }
1166 #endif
1167
1168 static const struct ath10k_hif_ops ath10k_snoc_hif_ops = {
1169 .read32 = ath10k_snoc_read32,
1170 .write32 = ath10k_snoc_write32,
1171 .start = ath10k_snoc_hif_start,
1172 .stop = ath10k_snoc_hif_stop,
1173 .map_service_to_pipe = ath10k_snoc_hif_map_service_to_pipe,
1174 .get_default_pipe = ath10k_snoc_hif_get_default_pipe,
1175 .power_up = ath10k_snoc_hif_power_up,
1176 .power_down = ath10k_snoc_hif_power_down,
1177 .tx_sg = ath10k_snoc_hif_tx_sg,
1178 .send_complete_check = ath10k_snoc_hif_send_complete_check,
1179 .get_free_queue_number = ath10k_snoc_hif_get_free_queue_number,
1180 .get_target_info = ath10k_snoc_hif_get_target_info,
1181 .set_target_log_mode = ath10k_snoc_hif_set_target_log_mode,
1182
1183 #ifdef CONFIG_PM
1184 .suspend = ath10k_snoc_hif_suspend,
1185 .resume = ath10k_snoc_hif_resume,
1186 #endif
1187 };
1188
1189 static const struct ath10k_bus_ops ath10k_snoc_bus_ops = {
1190 .read32 = ath10k_snoc_read32,
1191 .write32 = ath10k_snoc_write32,
1192 };
1193
1194 static int ath10k_snoc_get_ce_id_from_irq(struct ath10k *ar, int irq)
1195 {
1196 struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);
1197 int i;
1198
1199 for (i = 0; i < CE_COUNT_MAX; i++) {
1200 if (ar_snoc->ce_irqs[i].irq_line == irq)
1201 return i;
1202 }
1203 ath10k_err(ar, "No matching CE id for irq %d\n", irq);
1204
1205 return -EINVAL;
1206 }
1207
1208 static irqreturn_t ath10k_snoc_per_engine_handler(int irq, void *arg)
1209 {
1210 struct ath10k *ar = arg;
1211 struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);
1212 int ce_id = ath10k_snoc_get_ce_id_from_irq(ar, irq);
1213
1214 if (ce_id < 0 || ce_id >= ARRAY_SIZE(ar_snoc->pipe_info)) {
1215 ath10k_warn(ar, "unexpected/invalid irq %d ce_id %d\n", irq,
1216 ce_id);
1217 return IRQ_HANDLED;
1218 }
1219
1220 ath10k_ce_disable_interrupt(ar, ce_id);
1221 set_bit(ce_id, ar_snoc->pending_ce_irqs);
1222
1223 napi_schedule(&ar->napi);
1224
1225 return IRQ_HANDLED;
1226 }
1227
1228 static int ath10k_snoc_napi_poll(struct napi_struct *ctx, int budget)
1229 {
1230 struct ath10k *ar = container_of(ctx, struct ath10k, napi);
1231 struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);
1232 int done = 0;
1233 int ce_id;
1234
1235 if (test_bit(ATH10K_FLAG_CRASH_FLUSH, &ar->dev_flags)) {
1236 napi_complete(ctx);
1237 return done;
1238 }
1239
1240 for (ce_id = 0; ce_id < CE_COUNT; ce_id++)
1241 if (test_and_clear_bit(ce_id, ar_snoc->pending_ce_irqs)) {
1242 ath10k_ce_per_engine_service(ar, ce_id);
1243 ath10k_ce_enable_interrupt(ar, ce_id);
1244 }
1245
1246 done = ath10k_htt_txrx_compl_task(ar, budget);
1247
1248 if (done < budget)
1249 napi_complete(ctx);
1250
1251 return done;
1252 }
1253
1254 static void ath10k_snoc_init_napi(struct ath10k *ar)
1255 {
1256 netif_napi_add(ar->napi_dev, &ar->napi, ath10k_snoc_napi_poll);
1257 }
1258
1259 static int ath10k_snoc_request_irq(struct ath10k *ar)
1260 {
1261 struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);
1262 int ret, id;
1263
1264 for (id = 0; id < CE_COUNT_MAX; id++) {
1265 ret = request_irq(ar_snoc->ce_irqs[id].irq_line,
1266 ath10k_snoc_per_engine_handler,
1267 IRQF_NO_AUTOEN, ce_name[id], ar);
1268 if (ret) {
1269 ath10k_err(ar,
1270 "failed to register IRQ handler for CE %d: %d\n",
1271 id, ret);
1272 goto err_irq;
1273 }
1274 }
1275
1276 return 0;
1277
1278 err_irq:
1279 for (id -= 1; id >= 0; id--)
1280 free_irq(ar_snoc->ce_irqs[id].irq_line, ar);
1281
1282 return ret;
1283 }
1284
1285 static void ath10k_snoc_free_irq(struct ath10k *ar)
1286 {
1287 struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);
1288 int id;
1289
1290 for (id = 0; id < CE_COUNT_MAX; id++)
1291 free_irq(ar_snoc->ce_irqs[id].irq_line, ar);
1292 }
1293
1294 static int ath10k_snoc_resource_init(struct ath10k *ar)
1295 {
1296 struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);
1297 struct platform_device *pdev;
1298 struct resource *res;
1299 int i, ret = 0;
1300
1301 pdev = ar_snoc->dev;
1302 res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "membase");
1303 if (!res) {
1304 ath10k_err(ar, "Memory base not found in DT\n");
1305 return -EINVAL;
1306 }
1307
1308 ar_snoc->mem_pa = res->start;
1309 ar_snoc->mem = devm_ioremap(&pdev->dev, ar_snoc->mem_pa,
1310 resource_size(res));
1311 if (!ar_snoc->mem) {
1312 ath10k_err(ar, "Memory base ioremap failed with physical address %pa\n",
1313 &ar_snoc->mem_pa);
1314 return -EINVAL;
1315 }
1316
1317 for (i = 0; i < CE_COUNT; i++) {
1318 ret = platform_get_irq(ar_snoc->dev, i);
1319 if (ret < 0)
1320 return ret;
1321 ar_snoc->ce_irqs[i].irq_line = ret;
1322 }
1323
1324 ret = device_property_read_u32(&pdev->dev, "qcom,xo-cal-data",
1325 &ar_snoc->xo_cal_data);
1326 ath10k_dbg(ar, ATH10K_DBG_SNOC, "snoc xo-cal-data return %d\n", ret);
1327 if (ret == 0) {
1328 ar_snoc->xo_cal_supported = true;
1329 ath10k_dbg(ar, ATH10K_DBG_SNOC, "xo cal data %x\n",
1330 ar_snoc->xo_cal_data);
1331 }
1332
1333 return 0;
1334 }
1335
1336 static void ath10k_snoc_quirks_init(struct ath10k *ar)
1337 {
1338 struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);
1339 struct device *dev = &ar_snoc->dev->dev;
1340
1341 /* ignore errors, keep NULL if there is no property */
1342 of_property_read_string(dev->of_node, "firmware-name", &ar->board_name);
1343
1344 if (of_property_read_bool(dev->of_node, "qcom,snoc-host-cap-8bit-quirk"))
1345 set_bit(ATH10K_SNOC_FLAG_8BIT_HOST_CAP_QUIRK, &ar_snoc->flags);
1346 }
1347
1348 int ath10k_snoc_fw_indication(struct ath10k *ar, u64 type)
1349 {
1350 struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);
1351 struct ath10k_bus_params bus_params = {};
1352 int ret;
1353
1354 if (test_bit(ATH10K_SNOC_FLAG_UNREGISTERING, &ar_snoc->flags))
1355 return 0;
1356
1357 switch (type) {
1358 case ATH10K_QMI_EVENT_FW_READY_IND:
1359 if (test_bit(ATH10K_SNOC_FLAG_REGISTERED, &ar_snoc->flags)) {
1360 ath10k_core_start_recovery(ar);
1361 break;
1362 }
1363
1364 bus_params.dev_type = ATH10K_DEV_TYPE_LL;
1365 bus_params.chip_id = ar_snoc->target_info.soc_version;
1366 ret = ath10k_core_register(ar, &bus_params);
1367 if (ret) {
1368 ath10k_err(ar, "Failed to register driver core: %d\n",
1369 ret);
1370 return ret;
1371 }
1372 set_bit(ATH10K_SNOC_FLAG_REGISTERED, &ar_snoc->flags);
1373 break;
1374 case ATH10K_QMI_EVENT_FW_DOWN_IND:
1375 set_bit(ATH10K_SNOC_FLAG_RECOVERY, &ar_snoc->flags);
1376 set_bit(ATH10K_FLAG_CRASH_FLUSH, &ar->dev_flags);
1377 break;
1378 default:
1379 ath10k_err(ar, "invalid fw indication: %llx\n", type);
1380 return -EINVAL;
1381 }
1382
1383 return 0;
1384 }
1385
1386 static int ath10k_snoc_setup_resource(struct ath10k *ar)
1387 {
1388 struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);
1389 struct ath10k_ce *ce = ath10k_ce_priv(ar);
1390 struct ath10k_snoc_pipe *pipe;
1391 int i, ret;
1392
1393 timer_setup(&ar_snoc->rx_post_retry, ath10k_snoc_rx_replenish_retry, 0);
1394 spin_lock_init(&ce->ce_lock);
1395 for (i = 0; i < CE_COUNT; i++) {
1396 pipe = &ar_snoc->pipe_info[i];
1397 pipe->ce_hdl = &ce->ce_states[i];
1398 pipe->pipe_num = i;
1399 pipe->hif_ce_state = ar;
1400
1401 ret = ath10k_ce_alloc_pipe(ar, i, &host_ce_config_wlan[i]);
1402 if (ret) {
1403 ath10k_err(ar, "failed to allocate copy engine pipe %d: %d\n",
1404 i, ret);
1405 return ret;
1406 }
1407
1408 pipe->buf_sz = host_ce_config_wlan[i].src_sz_max;
1409 }
1410 ath10k_snoc_init_napi(ar);
1411
1412 return 0;
1413 }
1414
1415 static void ath10k_snoc_release_resource(struct ath10k *ar)
1416 {
1417 int i;
1418
1419 netif_napi_del(&ar->napi);
1420 for (i = 0; i < CE_COUNT; i++)
1421 ath10k_ce_free_pipe(ar, i);
1422 }
1423
1424 static void ath10k_msa_dump_memory(struct ath10k *ar,
1425 struct ath10k_fw_crash_data *crash_data)
1426 {
1427 const struct ath10k_hw_mem_layout *mem_layout;
1428 const struct ath10k_mem_region *current_region;
1429 struct ath10k_dump_ram_data_hdr *hdr;
1430 size_t buf_len;
1431 u8 *buf;
1432
1433 if (!crash_data || !crash_data->ramdump_buf)
1434 return;
1435
1436 mem_layout = ath10k_coredump_get_mem_layout(ar);
1437 if (!mem_layout)
1438 return;
1439
1440 current_region = &mem_layout->region_table.regions[0];
1441
1442 buf = crash_data->ramdump_buf;
1443 buf_len = crash_data->ramdump_buf_len;
1444 memset(buf, 0, buf_len);
1445
1446 /* Reserve space for the header. */
1447 hdr = (void *)buf;
1448 buf += sizeof(*hdr);
1449 buf_len -= sizeof(*hdr);
1450
1451 hdr->region_type = cpu_to_le32(current_region->type);
1452 hdr->start = cpu_to_le32((unsigned long)ar->msa.vaddr);
1453 hdr->length = cpu_to_le32(ar->msa.mem_size);
1454
1455 if (current_region->len < ar->msa.mem_size) {
1456 memcpy(buf, ar->msa.vaddr, current_region->len);
1457 ath10k_warn(ar, "msa dump length is less than msa size %x, %x\n",
1458 current_region->len, ar->msa.mem_size);
1459 } else {
1460 memcpy(buf, ar->msa.vaddr, ar->msa.mem_size);
1461 }
1462 }
1463
1464 void ath10k_snoc_fw_crashed_dump(struct ath10k *ar)
1465 {
1466 struct ath10k_fw_crash_data *crash_data;
1467 char guid[UUID_STRING_LEN + 1];
1468
1469 mutex_lock(&ar->dump_mutex);
1470
1471 spin_lock_bh(&ar->data_lock);
1472 ar->stats.fw_crash_counter++;
1473 spin_unlock_bh(&ar->data_lock);
1474
1475 crash_data = ath10k_coredump_new(ar);
1476
1477 if (crash_data)
1478 scnprintf(guid, sizeof(guid), "%pUl", &crash_data->guid);
1479 else
1480 scnprintf(guid, sizeof(guid), "n/a");
1481
1482 ath10k_err(ar, "firmware crashed! (guid %s)\n", guid);
1483 ath10k_print_driver_info(ar);
1484 ath10k_msa_dump_memory(ar, crash_data);
1485 mutex_unlock(&ar->dump_mutex);
1486 }
1487
1488 static int ath10k_snoc_modem_notify(struct notifier_block *nb, unsigned long action,
1489 void *data)
1490 {
1491 struct ath10k_snoc *ar_snoc = container_of(nb, struct ath10k_snoc, nb);
1492 struct ath10k *ar = ar_snoc->ar;
1493 struct qcom_ssr_notify_data *notify_data = data;
1494
1495 switch (action) {
1496 case QCOM_SSR_BEFORE_POWERUP:
1497 ath10k_dbg(ar, ATH10K_DBG_SNOC, "received modem starting event\n");
1498 clear_bit(ATH10K_SNOC_FLAG_MODEM_STOPPED, &ar_snoc->flags);
1499 break;
1500
1501 case QCOM_SSR_AFTER_POWERUP:
1502 ath10k_dbg(ar, ATH10K_DBG_SNOC, "received modem running event\n");
1503 break;
1504
1505 case QCOM_SSR_BEFORE_SHUTDOWN:
1506 ath10k_dbg(ar, ATH10K_DBG_SNOC, "received modem %s event\n",
1507 notify_data->crashed ? "crashed" : "stopping");
1508 if (!notify_data->crashed)
1509 set_bit(ATH10K_SNOC_FLAG_MODEM_STOPPED, &ar_snoc->flags);
1510 else
1511 clear_bit(ATH10K_SNOC_FLAG_MODEM_STOPPED, &ar_snoc->flags);
1512 break;
1513
1514 case QCOM_SSR_AFTER_SHUTDOWN:
1515 ath10k_dbg(ar, ATH10K_DBG_SNOC, "received modem offline event\n");
1516 break;
1517
1518 default:
1519 ath10k_err(ar, "received unrecognized event %lu\n", action);
1520 break;
1521 }
1522
1523 return NOTIFY_OK;
1524 }
1525
1526 static int ath10k_modem_init(struct ath10k *ar)
1527 {
1528 struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);
1529 void *notifier;
1530 int ret;
1531
1532 ar_snoc->nb.notifier_call = ath10k_snoc_modem_notify;
1533
1534 notifier = qcom_register_ssr_notifier("mpss", &ar_snoc->nb);
1535 if (IS_ERR(notifier)) {
1536 ret = PTR_ERR(notifier);
1537 ath10k_err(ar, "failed to initialize modem notifier: %d\n", ret);
1538 return ret;
1539 }
1540
1541 ar_snoc->notifier = notifier;
1542
1543 return 0;
1544 }
1545
1546 static void ath10k_modem_deinit(struct ath10k *ar)
1547 {
1548 int ret;
1549 struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);
1550
1551 ret = qcom_unregister_ssr_notifier(ar_snoc->notifier, &ar_snoc->nb);
1552 if (ret)
1553 ath10k_err(ar, "error %d unregistering notifier\n", ret);
1554 }
1555
1556 static int ath10k_setup_msa_resources(struct ath10k *ar, u32 msa_size)
1557 {
1558 struct device *dev = ar->dev;
1559 struct device_node *node;
1560 struct resource r;
1561 int ret;
1562
1563 node = of_parse_phandle(dev->of_node, "memory-region", 0);
1564 if (node) {
1565 ret = of_address_to_resource(node, 0, &r);
1566 of_node_put(node);
1567 if (ret) {
1568 dev_err(dev, "failed to resolve msa fixed region\n");
1569 return ret;
1570 }
1571
1572 ar->msa.paddr = r.start;
1573 ar->msa.mem_size = resource_size(&r);
1574 ar->msa.vaddr = devm_memremap(dev, ar->msa.paddr,
1575 ar->msa.mem_size,
1576 MEMREMAP_WT);
1577 if (IS_ERR(ar->msa.vaddr)) {
1578 dev_err(dev, "failed to map memory region: %pa\n",
1579 &r.start);
1580 return PTR_ERR(ar->msa.vaddr);
1581 }
1582 } else {
1583 ar->msa.vaddr = dmam_alloc_coherent(dev, msa_size,
1584 &ar->msa.paddr,
1585 GFP_KERNEL);
1586 if (!ar->msa.vaddr) {
1587 ath10k_err(ar, "failed to allocate dma memory for msa region\n");
1588 return -ENOMEM;
1589 }
1590 ar->msa.mem_size = msa_size;
1591 }
1592
1593 ath10k_dbg(ar, ATH10K_DBG_QMI, "qmi msa.paddr: %pad , msa.vaddr: 0x%p\n",
1594 &ar->msa.paddr,
1595 ar->msa.vaddr);
1596
1597 return 0;
1598 }
1599
1600 static int ath10k_fw_init(struct ath10k *ar)
1601 {
1602 struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);
1603 struct device *host_dev = &ar_snoc->dev->dev;
1604 struct platform_device_info info;
1605 struct iommu_domain *iommu_dom;
1606 struct platform_device *pdev;
1607 struct device_node *node;
1608 int ret;
1609
1610 node = of_get_child_by_name(host_dev->of_node, "wifi-firmware");
1611 if (!node) {
1612 ar_snoc->use_tz = true;
1613 return 0;
1614 }
1615
1616 memset(&info, 0, sizeof(info));
1617 info.fwnode = &node->fwnode;
1618 info.parent = host_dev;
1619 info.name = node->name;
1620 info.dma_mask = DMA_BIT_MASK(32);
1621
1622 pdev = platform_device_register_full(&info);
1623 if (IS_ERR(pdev)) {
1624 of_node_put(node);
1625 return PTR_ERR(pdev);
1626 }
1627
1628 pdev->dev.of_node = node;
1629
1630 ret = of_dma_configure(&pdev->dev, node, true);
1631 if (ret) {
1632 ath10k_err(ar, "dma configure fail: %d\n", ret);
1633 goto err_unregister;
1634 }
1635
1636 ar_snoc->fw.dev = &pdev->dev;
1637
1638 iommu_dom = iommu_paging_domain_alloc(ar_snoc->fw.dev);
1639 if (IS_ERR(iommu_dom)) {
1640 ath10k_err(ar, "failed to allocate iommu domain\n");
1641 ret = PTR_ERR(iommu_dom);
1642 goto err_unregister;
1643 }
1644
1645 ret = iommu_attach_device(iommu_dom, ar_snoc->fw.dev);
1646 if (ret) {
1647 ath10k_err(ar, "could not attach device: %d\n", ret);
1648 goto err_iommu_free;
1649 }
1650
1651 ar_snoc->fw.iommu_domain = iommu_dom;
1652 ar_snoc->fw.fw_start_addr = ar->msa.paddr;
1653
1654 ret = iommu_map(iommu_dom, ar_snoc->fw.fw_start_addr,
1655 ar->msa.paddr, ar->msa.mem_size,
1656 IOMMU_READ | IOMMU_WRITE, GFP_KERNEL);
1657 if (ret) {
1658 ath10k_err(ar, "failed to map firmware region: %d\n", ret);
1659 goto err_iommu_detach;
1660 }
1661
1662 of_node_put(node);
1663
1664 return 0;
1665
1666 err_iommu_detach:
1667 iommu_detach_device(iommu_dom, ar_snoc->fw.dev);
1668
1669 err_iommu_free:
1670 iommu_domain_free(iommu_dom);
1671
1672 err_unregister:
1673 platform_device_unregister(pdev);
1674 of_node_put(node);
1675
1676 return ret;
1677 }
1678
1679 static int ath10k_fw_deinit(struct ath10k *ar)
1680 {
1681 struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);
1682 const size_t mapped_size = ar_snoc->fw.mapped_mem_size;
1683 struct iommu_domain *iommu;
1684 size_t unmapped_size;
1685
1686 if (ar_snoc->use_tz)
1687 return 0;
1688
1689 iommu = ar_snoc->fw.iommu_domain;
1690
1691 unmapped_size = iommu_unmap(iommu, ar_snoc->fw.fw_start_addr,
1692 mapped_size);
1693 if (unmapped_size != mapped_size)
1694 ath10k_err(ar, "failed to unmap firmware: %zu\n",
1695 unmapped_size);
1696
1697 iommu_detach_device(iommu, ar_snoc->fw.dev);
1698 iommu_domain_free(iommu);
1699
1700 platform_device_unregister(to_platform_device(ar_snoc->fw.dev));
1701
1702 return 0;
1703 }
1704
1705 static const struct of_device_id ath10k_snoc_dt_match[] = {
1706 { .compatible = "qcom,wcn3990-wifi",
1707 .data = &drv_priv,
1708 },
1709 { }
1710 };
1711 MODULE_DEVICE_TABLE(of, ath10k_snoc_dt_match);
1712
1713 static int ath10k_snoc_probe(struct platform_device *pdev)
1714 {
1715 const struct ath10k_snoc_drv_priv *drv_data;
1716 struct ath10k_snoc *ar_snoc;
1717 struct device *dev;
1718 struct ath10k *ar;
1719 u32 msa_size;
1720 int ret;
1721 u32 i;
1722
1723 dev = &pdev->dev;
1724 drv_data = device_get_match_data(dev);
1725 if (!drv_data) {
1726 dev_err(dev, "failed to find matching device tree id\n");
1727 return -EINVAL;
1728 }
1729
1730 ret = dma_set_mask_and_coherent(dev, drv_data->dma_mask);
1731 if (ret) {
1732 dev_err(dev, "failed to set dma mask: %d\n", ret);
1733 return ret;
1734 }
1735
1736 ar = ath10k_core_create(sizeof(*ar_snoc), dev, ATH10K_BUS_SNOC,
1737 drv_data->hw_rev, &ath10k_snoc_hif_ops);
1738 if (!ar) {
1739 dev_err(dev, "failed to allocate core\n");
1740 return -ENOMEM;
1741 }
1742
1743 ar_snoc = ath10k_snoc_priv(ar);
1744 ar_snoc->dev = pdev;
1745 platform_set_drvdata(pdev, ar);
1746 ar_snoc->ar = ar;
1747 ar_snoc->ce.bus_ops = &ath10k_snoc_bus_ops;
1748 ar->ce_priv = &ar_snoc->ce;
1749 msa_size = drv_data->msa_size;
1750
1751 ath10k_snoc_quirks_init(ar);
1752
1753 ret = ath10k_snoc_resource_init(ar);
1754 if (ret) {
1755 ath10k_warn(ar, "failed to initialize resource: %d\n", ret);
1756 goto err_core_destroy;
1757 }
1758
1759 ret = ath10k_snoc_setup_resource(ar);
1760 if (ret) {
1761 ath10k_warn(ar, "failed to setup resource: %d\n", ret);
1762 goto err_core_destroy;
1763 }
1764 ret = ath10k_snoc_request_irq(ar);
1765 if (ret) {
1766 ath10k_warn(ar, "failed to request irqs: %d\n", ret);
1767 goto err_release_resource;
1768 }
1769
1770 ar_snoc->num_vregs = ARRAY_SIZE(ath10k_regulators);
1771 ar_snoc->vregs = devm_kcalloc(&pdev->dev, ar_snoc->num_vregs,
1772 sizeof(*ar_snoc->vregs), GFP_KERNEL);
1773 if (!ar_snoc->vregs) {
1774 ret = -ENOMEM;
1775 goto err_free_irq;
1776 }
1777 for (i = 0; i < ar_snoc->num_vregs; i++)
1778 ar_snoc->vregs[i].supply = ath10k_regulators[i];
1779
1780 ret = devm_regulator_bulk_get(&pdev->dev, ar_snoc->num_vregs,
1781 ar_snoc->vregs);
1782 if (ret < 0)
1783 goto err_free_irq;
1784
1785 ar_snoc->num_clks = ARRAY_SIZE(ath10k_clocks);
1786 ar_snoc->clks = devm_kcalloc(&pdev->dev, ar_snoc->num_clks,
1787 sizeof(*ar_snoc->clks), GFP_KERNEL);
1788 if (!ar_snoc->clks) {
1789 ret = -ENOMEM;
1790 goto err_free_irq;
1791 }
1792
1793 for (i = 0; i < ar_snoc->num_clks; i++)
1794 ar_snoc->clks[i].id = ath10k_clocks[i];
1795
1796 ret = devm_clk_bulk_get_optional(&pdev->dev, ar_snoc->num_clks,
1797 ar_snoc->clks);
1798 if (ret)
1799 goto err_free_irq;
1800
1801 ret = ath10k_setup_msa_resources(ar, msa_size);
1802 if (ret) {
1803 ath10k_warn(ar, "failed to setup msa resources: %d\n", ret);
1804 goto err_free_irq;
1805 }
1806
1807 ret = ath10k_fw_init(ar);
1808 if (ret) {
1809 ath10k_err(ar, "failed to initialize firmware: %d\n", ret);
1810 goto err_free_irq;
1811 }
1812
1813 ret = ath10k_qmi_init(ar, msa_size);
1814 if (ret) {
1815 ath10k_warn(ar, "failed to register wlfw qmi client: %d\n", ret);
1816 goto err_fw_deinit;
1817 }
1818
1819 ret = ath10k_modem_init(ar);
1820 if (ret)
1821 goto err_qmi_deinit;
1822
1823 ath10k_dbg(ar, ATH10K_DBG_SNOC, "snoc probe\n");
1824
1825 return 0;
1826
1827 err_qmi_deinit:
1828 ath10k_qmi_deinit(ar);
1829
1830 err_fw_deinit:
1831 ath10k_fw_deinit(ar);
1832
1833 err_free_irq:
1834 ath10k_snoc_free_irq(ar);
1835
1836 err_release_resource:
1837 ath10k_snoc_release_resource(ar);
1838
1839 err_core_destroy:
1840 ath10k_core_destroy(ar);
1841
1842 return ret;
1843 }
1844
1845 static int ath10k_snoc_free_resources(struct ath10k *ar)
1846 {
1847 struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);
1848
1849 ath10k_dbg(ar, ATH10K_DBG_SNOC, "snoc free resources\n");
1850
1851 set_bit(ATH10K_SNOC_FLAG_UNREGISTERING, &ar_snoc->flags);
1852
1853 ath10k_core_unregister(ar);
1854 ath10k_fw_deinit(ar);
1855 ath10k_snoc_free_irq(ar);
1856 ath10k_snoc_release_resource(ar);
1857 ath10k_modem_deinit(ar);
1858 ath10k_qmi_deinit(ar);
1859 ath10k_core_destroy(ar);
1860
1861 return 0;
1862 }
1863
1864 static void ath10k_snoc_remove(struct platform_device *pdev)
1865 {
1866 struct ath10k *ar = platform_get_drvdata(pdev);
1867 struct ath10k_snoc *ar_snoc = ath10k_snoc_priv(ar);
1868
1869 ath10k_dbg(ar, ATH10K_DBG_SNOC, "snoc remove\n");
1870
1871 reinit_completion(&ar->driver_recovery);
1872
1873 if (test_bit(ATH10K_SNOC_FLAG_RECOVERY, &ar_snoc->flags))
1874 wait_for_completion_timeout(&ar->driver_recovery, 3 * HZ);
1875
1876 ath10k_snoc_free_resources(ar);
1877 }
1878
1879 static void ath10k_snoc_shutdown(struct platform_device *pdev)
1880 {
1881 struct ath10k *ar = platform_get_drvdata(pdev);
1882
1883 ath10k_dbg(ar, ATH10K_DBG_SNOC, "snoc shutdown\n");
1884 ath10k_snoc_free_resources(ar);
1885 }
1886
1887 static struct platform_driver ath10k_snoc_driver = {
1888 .probe = ath10k_snoc_probe,
1889 .remove = ath10k_snoc_remove,
1890 .shutdown = ath10k_snoc_shutdown,
1891 .driver = {
1892 .name = "ath10k_snoc",
1893 .of_match_table = ath10k_snoc_dt_match,
1894 },
1895 };
1896 module_platform_driver(ath10k_snoc_driver);
1897
1898 MODULE_AUTHOR("Qualcomm");
1899 MODULE_LICENSE("Dual BSD/GPL");
1900 MODULE_DESCRIPTION("Driver support for Atheros WCN3990 SNOC devices");
Kernel DRM miscellaneous fixes and cross-tree changes