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24#include <linux/ratelimit.h>
25#include <linux/printk.h>
26#include <linux/slab.h>
27#include <linux/list.h>
28#include <linux/types.h>
29#include <linux/bitops.h>
30#include <linux/sched.h>
31#include "kfd_priv.h"
32#include "kfd_device_queue_manager.h"
33#include "kfd_mqd_manager.h"
34#include "cik_regs.h"
35#include "kfd_kernel_queue.h"
36#include "amdgpu_amdkfd.h"
37
38
39#define CIK_HPD_EOP_BYTES_LOG2 11
40#define CIK_HPD_EOP_BYTES (1U << CIK_HPD_EOP_BYTES_LOG2)
41
42static int set_pasid_vmid_mapping(struct device_queue_manager *dqm,
43 u32 pasid, unsigned int vmid);
44
45static int execute_queues_cpsch(struct device_queue_manager *dqm,
46 enum kfd_unmap_queues_filter filter,
47 uint32_t filter_param);
48static int unmap_queues_cpsch(struct device_queue_manager *dqm,
49 enum kfd_unmap_queues_filter filter,
50 uint32_t filter_param);
51
52static int map_queues_cpsch(struct device_queue_manager *dqm);
53
54static void deallocate_sdma_queue(struct device_queue_manager *dqm,
55 struct queue *q);
56
57static inline void deallocate_hqd(struct device_queue_manager *dqm,
58 struct queue *q);
59static int allocate_hqd(struct device_queue_manager *dqm, struct queue *q);
60static int allocate_sdma_queue(struct device_queue_manager *dqm,
61 struct queue *q);
62static void kfd_process_hw_exception(struct work_struct *work);
63
64static inline
65enum KFD_MQD_TYPE get_mqd_type_from_queue_type(enum kfd_queue_type type)
66{
67 if (type == KFD_QUEUE_TYPE_SDMA || type == KFD_QUEUE_TYPE_SDMA_XGMI)
68 return KFD_MQD_TYPE_SDMA;
69 return KFD_MQD_TYPE_CP;
70}
71
72static bool is_pipe_enabled(struct device_queue_manager *dqm, int mec, int pipe)
73{
74 int i;
75 int pipe_offset = (mec * dqm->dev->shared_resources.num_pipe_per_mec
76 + pipe) * dqm->dev->shared_resources.num_queue_per_pipe;
77
78
79 for (i = 0; i < dqm->dev->shared_resources.num_queue_per_pipe; ++i)
80 if (test_bit(pipe_offset + i,
81 dqm->dev->shared_resources.cp_queue_bitmap))
82 return true;
83 return false;
84}
85
86unsigned int get_cp_queues_num(struct device_queue_manager *dqm)
87{
88 return bitmap_weight(dqm->dev->shared_resources.cp_queue_bitmap,
89 KGD_MAX_QUEUES);
90}
91
92unsigned int get_queues_per_pipe(struct device_queue_manager *dqm)
93{
94 return dqm->dev->shared_resources.num_queue_per_pipe;
95}
96
97unsigned int get_pipes_per_mec(struct device_queue_manager *dqm)
98{
99 return dqm->dev->shared_resources.num_pipe_per_mec;
100}
101
102static unsigned int get_num_sdma_engines(struct device_queue_manager *dqm)
103{
104 return dqm->dev->device_info->num_sdma_engines;
105}
106
107static unsigned int get_num_xgmi_sdma_engines(struct device_queue_manager *dqm)
108{
109 return dqm->dev->device_info->num_xgmi_sdma_engines;
110}
111
112static unsigned int get_num_all_sdma_engines(struct device_queue_manager *dqm)
113{
114 return get_num_sdma_engines(dqm) + get_num_xgmi_sdma_engines(dqm);
115}
116
117unsigned int get_num_sdma_queues(struct device_queue_manager *dqm)
118{
119 return dqm->dev->device_info->num_sdma_engines
120 * dqm->dev->device_info->num_sdma_queues_per_engine;
121}
122
123unsigned int get_num_xgmi_sdma_queues(struct device_queue_manager *dqm)
124{
125 return dqm->dev->device_info->num_xgmi_sdma_engines
126 * dqm->dev->device_info->num_sdma_queues_per_engine;
127}
128
129void program_sh_mem_settings(struct device_queue_manager *dqm,
130 struct qcm_process_device *qpd)
131{
132 return dqm->dev->kfd2kgd->program_sh_mem_settings(
133 dqm->dev->kgd, qpd->vmid,
134 qpd->sh_mem_config,
135 qpd->sh_mem_ape1_base,
136 qpd->sh_mem_ape1_limit,
137 qpd->sh_mem_bases);
138}
139
140static void increment_queue_count(struct device_queue_manager *dqm,
141 enum kfd_queue_type type)
142{
143 dqm->active_queue_count++;
144 if (type == KFD_QUEUE_TYPE_COMPUTE || type == KFD_QUEUE_TYPE_DIQ)
145 dqm->active_cp_queue_count++;
146}
147
148static void decrement_queue_count(struct device_queue_manager *dqm,
149 enum kfd_queue_type type)
150{
151 dqm->active_queue_count--;
152 if (type == KFD_QUEUE_TYPE_COMPUTE || type == KFD_QUEUE_TYPE_DIQ)
153 dqm->active_cp_queue_count--;
154}
155
156static int allocate_doorbell(struct qcm_process_device *qpd, struct queue *q)
157{
158 struct kfd_dev *dev = qpd->dqm->dev;
159
160 if (!KFD_IS_SOC15(dev->device_info->asic_family)) {
161
162
163
164 q->doorbell_id = q->properties.queue_id;
165 } else if (q->properties.type == KFD_QUEUE_TYPE_SDMA ||
166 q->properties.type == KFD_QUEUE_TYPE_SDMA_XGMI) {
167
168
169
170
171
172 uint32_t *idx_offset =
173 dev->shared_resources.sdma_doorbell_idx;
174
175 q->doorbell_id = idx_offset[q->properties.sdma_engine_id]
176 + (q->properties.sdma_queue_id & 1)
177 * KFD_QUEUE_DOORBELL_MIRROR_OFFSET
178 + (q->properties.sdma_queue_id >> 1);
179 } else {
180
181 unsigned int found;
182
183 found = find_first_zero_bit(qpd->doorbell_bitmap,
184 KFD_MAX_NUM_OF_QUEUES_PER_PROCESS);
185 if (found >= KFD_MAX_NUM_OF_QUEUES_PER_PROCESS) {
186 pr_debug("No doorbells available");
187 return -EBUSY;
188 }
189 set_bit(found, qpd->doorbell_bitmap);
190 q->doorbell_id = found;
191 }
192
193 q->properties.doorbell_off =
194 kfd_get_doorbell_dw_offset_in_bar(dev, qpd_to_pdd(qpd),
195 q->doorbell_id);
196 return 0;
197}
198
199static void deallocate_doorbell(struct qcm_process_device *qpd,
200 struct queue *q)
201{
202 unsigned int old;
203 struct kfd_dev *dev = qpd->dqm->dev;
204
205 if (!KFD_IS_SOC15(dev->device_info->asic_family) ||
206 q->properties.type == KFD_QUEUE_TYPE_SDMA ||
207 q->properties.type == KFD_QUEUE_TYPE_SDMA_XGMI)
208 return;
209
210 old = test_and_clear_bit(q->doorbell_id, qpd->doorbell_bitmap);
211 WARN_ON(!old);
212}
213
214static void program_trap_handler_settings(struct device_queue_manager *dqm,
215 struct qcm_process_device *qpd)
216{
217 if (dqm->dev->kfd2kgd->program_trap_handler_settings)
218 dqm->dev->kfd2kgd->program_trap_handler_settings(
219 dqm->dev->kgd, qpd->vmid,
220 qpd->tba_addr, qpd->tma_addr);
221}
222
223static int allocate_vmid(struct device_queue_manager *dqm,
224 struct qcm_process_device *qpd,
225 struct queue *q)
226{
227 int allocated_vmid = -1, i;
228
229 for (i = dqm->dev->vm_info.first_vmid_kfd;
230 i <= dqm->dev->vm_info.last_vmid_kfd; i++) {
231 if (!dqm->vmid_pasid[i]) {
232 allocated_vmid = i;
233 break;
234 }
235 }
236
237 if (allocated_vmid < 0) {
238 pr_err("no more vmid to allocate\n");
239 return -ENOSPC;
240 }
241
242 pr_debug("vmid allocated: %d\n", allocated_vmid);
243
244 dqm->vmid_pasid[allocated_vmid] = q->process->pasid;
245
246 set_pasid_vmid_mapping(dqm, q->process->pasid, allocated_vmid);
247
248 qpd->vmid = allocated_vmid;
249 q->properties.vmid = allocated_vmid;
250
251 program_sh_mem_settings(dqm, qpd);
252
253 if (dqm->dev->device_info->asic_family >= CHIP_VEGA10 &&
254 dqm->dev->cwsr_enabled)
255 program_trap_handler_settings(dqm, qpd);
256
257
258
259
260 dqm->dev->kfd2kgd->set_vm_context_page_table_base(dqm->dev->kgd,
261 qpd->vmid,
262 qpd->page_table_base);
263
264 kfd_flush_tlb(qpd_to_pdd(qpd), TLB_FLUSH_LEGACY);
265
266 if (dqm->dev->kfd2kgd->set_scratch_backing_va)
267 dqm->dev->kfd2kgd->set_scratch_backing_va(dqm->dev->kgd,
268 qpd->sh_hidden_private_base, qpd->vmid);
269
270 return 0;
271}
272
273static int flush_texture_cache_nocpsch(struct kfd_dev *kdev,
274 struct qcm_process_device *qpd)
275{
276 const struct packet_manager_funcs *pmf = qpd->dqm->packet_mgr.pmf;
277 int ret;
278
279 if (!qpd->ib_kaddr)
280 return -ENOMEM;
281
282 ret = pmf->release_mem(qpd->ib_base, (uint32_t *)qpd->ib_kaddr);
283 if (ret)
284 return ret;
285
286 return amdgpu_amdkfd_submit_ib(kdev->kgd, KGD_ENGINE_MEC1, qpd->vmid,
287 qpd->ib_base, (uint32_t *)qpd->ib_kaddr,
288 pmf->release_mem_size / sizeof(uint32_t));
289}
290
291static void deallocate_vmid(struct device_queue_manager *dqm,
292 struct qcm_process_device *qpd,
293 struct queue *q)
294{
295
296 if (q->device->device_info->asic_family == CHIP_HAWAII)
297 if (flush_texture_cache_nocpsch(q->device, qpd))
298 pr_err("Failed to flush TC\n");
299
300 kfd_flush_tlb(qpd_to_pdd(qpd), TLB_FLUSH_LEGACY);
301
302
303 set_pasid_vmid_mapping(dqm, 0, qpd->vmid);
304 dqm->vmid_pasid[qpd->vmid] = 0;
305
306 qpd->vmid = 0;
307 q->properties.vmid = 0;
308}
309
310static int create_queue_nocpsch(struct device_queue_manager *dqm,
311 struct queue *q,
312 struct qcm_process_device *qpd)
313{
314 struct mqd_manager *mqd_mgr;
315 int retval;
316
317 dqm_lock(dqm);
318
319 if (dqm->total_queue_count >= max_num_of_queues_per_device) {
320 pr_warn("Can't create new usermode queue because %d queues were already created\n",
321 dqm->total_queue_count);
322 retval = -EPERM;
323 goto out_unlock;
324 }
325
326 if (list_empty(&qpd->queues_list)) {
327 retval = allocate_vmid(dqm, qpd, q);
328 if (retval)
329 goto out_unlock;
330 }
331 q->properties.vmid = qpd->vmid;
332
333
334
335
336
337 q->properties.is_evicted = !!qpd->evicted;
338
339 q->properties.tba_addr = qpd->tba_addr;
340 q->properties.tma_addr = qpd->tma_addr;
341
342 mqd_mgr = dqm->mqd_mgrs[get_mqd_type_from_queue_type(
343 q->properties.type)];
344 if (q->properties.type == KFD_QUEUE_TYPE_COMPUTE) {
345 retval = allocate_hqd(dqm, q);
346 if (retval)
347 goto deallocate_vmid;
348 pr_debug("Loading mqd to hqd on pipe %d, queue %d\n",
349 q->pipe, q->queue);
350 } else if (q->properties.type == KFD_QUEUE_TYPE_SDMA ||
351 q->properties.type == KFD_QUEUE_TYPE_SDMA_XGMI) {
352 retval = allocate_sdma_queue(dqm, q);
353 if (retval)
354 goto deallocate_vmid;
355 dqm->asic_ops.init_sdma_vm(dqm, q, qpd);
356 }
357
358 retval = allocate_doorbell(qpd, q);
359 if (retval)
360 goto out_deallocate_hqd;
361
362
363 dqm_unlock(dqm);
364 q->mqd_mem_obj = mqd_mgr->allocate_mqd(mqd_mgr->dev, &q->properties);
365 dqm_lock(dqm);
366
367 if (!q->mqd_mem_obj) {
368 retval = -ENOMEM;
369 goto out_deallocate_doorbell;
370 }
371 mqd_mgr->init_mqd(mqd_mgr, &q->mqd, q->mqd_mem_obj,
372 &q->gart_mqd_addr, &q->properties);
373 if (q->properties.is_active) {
374 if (!dqm->sched_running) {
375 WARN_ONCE(1, "Load non-HWS mqd while stopped\n");
376 goto add_queue_to_list;
377 }
378
379 if (WARN(q->process->mm != current->mm,
380 "should only run in user thread"))
381 retval = -EFAULT;
382 else
383 retval = mqd_mgr->load_mqd(mqd_mgr, q->mqd, q->pipe,
384 q->queue, &q->properties, current->mm);
385 if (retval)
386 goto out_free_mqd;
387 }
388
389add_queue_to_list:
390 list_add(&q->list, &qpd->queues_list);
391 qpd->queue_count++;
392 if (q->properties.is_active)
393 increment_queue_count(dqm, q->properties.type);
394
395
396
397
398
399 dqm->total_queue_count++;
400 pr_debug("Total of %d queues are accountable so far\n",
401 dqm->total_queue_count);
402 goto out_unlock;
403
404out_free_mqd:
405 mqd_mgr->free_mqd(mqd_mgr, q->mqd, q->mqd_mem_obj);
406out_deallocate_doorbell:
407 deallocate_doorbell(qpd, q);
408out_deallocate_hqd:
409 if (q->properties.type == KFD_QUEUE_TYPE_COMPUTE)
410 deallocate_hqd(dqm, q);
411 else if (q->properties.type == KFD_QUEUE_TYPE_SDMA ||
412 q->properties.type == KFD_QUEUE_TYPE_SDMA_XGMI)
413 deallocate_sdma_queue(dqm, q);
414deallocate_vmid:
415 if (list_empty(&qpd->queues_list))
416 deallocate_vmid(dqm, qpd, q);
417out_unlock:
418 dqm_unlock(dqm);
419 return retval;
420}
421
422static int allocate_hqd(struct device_queue_manager *dqm, struct queue *q)
423{
424 bool set;
425 int pipe, bit, i;
426
427 set = false;
428
429 for (pipe = dqm->next_pipe_to_allocate, i = 0;
430 i < get_pipes_per_mec(dqm);
431 pipe = ((pipe + 1) % get_pipes_per_mec(dqm)), ++i) {
432
433 if (!is_pipe_enabled(dqm, 0, pipe))
434 continue;
435
436 if (dqm->allocated_queues[pipe] != 0) {
437 bit = ffs(dqm->allocated_queues[pipe]) - 1;
438 dqm->allocated_queues[pipe] &= ~(1 << bit);
439 q->pipe = pipe;
440 q->queue = bit;
441 set = true;
442 break;
443 }
444 }
445
446 if (!set)
447 return -EBUSY;
448
449 pr_debug("hqd slot - pipe %d, queue %d\n", q->pipe, q->queue);
450
451 dqm->next_pipe_to_allocate = (pipe + 1) % get_pipes_per_mec(dqm);
452
453 return 0;
454}
455
456static inline void deallocate_hqd(struct device_queue_manager *dqm,
457 struct queue *q)
458{
459 dqm->allocated_queues[q->pipe] |= (1 << q->queue);
460}
461
462
463
464
465static int destroy_queue_nocpsch_locked(struct device_queue_manager *dqm,
466 struct qcm_process_device *qpd,
467 struct queue *q)
468{
469 int retval;
470 struct mqd_manager *mqd_mgr;
471
472 mqd_mgr = dqm->mqd_mgrs[get_mqd_type_from_queue_type(
473 q->properties.type)];
474
475 if (q->properties.type == KFD_QUEUE_TYPE_COMPUTE)
476 deallocate_hqd(dqm, q);
477 else if (q->properties.type == KFD_QUEUE_TYPE_SDMA)
478 deallocate_sdma_queue(dqm, q);
479 else if (q->properties.type == KFD_QUEUE_TYPE_SDMA_XGMI)
480 deallocate_sdma_queue(dqm, q);
481 else {
482 pr_debug("q->properties.type %d is invalid\n",
483 q->properties.type);
484 return -EINVAL;
485 }
486 dqm->total_queue_count--;
487
488 deallocate_doorbell(qpd, q);
489
490 if (!dqm->sched_running) {
491 WARN_ONCE(1, "Destroy non-HWS queue while stopped\n");
492 return 0;
493 }
494
495 retval = mqd_mgr->destroy_mqd(mqd_mgr, q->mqd,
496 KFD_PREEMPT_TYPE_WAVEFRONT_RESET,
497 KFD_UNMAP_LATENCY_MS,
498 q->pipe, q->queue);
499 if (retval == -ETIME)
500 qpd->reset_wavefronts = true;
501
502 list_del(&q->list);
503 if (list_empty(&qpd->queues_list)) {
504 if (qpd->reset_wavefronts) {
505 pr_warn("Resetting wave fronts (nocpsch) on dev %p\n",
506 dqm->dev);
507
508
509
510 dbgdev_wave_reset_wavefronts(dqm->dev,
511 qpd->pqm->process);
512 qpd->reset_wavefronts = false;
513 }
514
515 deallocate_vmid(dqm, qpd, q);
516 }
517 qpd->queue_count--;
518 if (q->properties.is_active) {
519 decrement_queue_count(dqm, q->properties.type);
520 if (q->properties.is_gws) {
521 dqm->gws_queue_count--;
522 qpd->mapped_gws_queue = false;
523 }
524 }
525
526 return retval;
527}
528
529static int destroy_queue_nocpsch(struct device_queue_manager *dqm,
530 struct qcm_process_device *qpd,
531 struct queue *q)
532{
533 int retval;
534 uint64_t sdma_val = 0;
535 struct kfd_process_device *pdd = qpd_to_pdd(qpd);
536 struct mqd_manager *mqd_mgr =
537 dqm->mqd_mgrs[get_mqd_type_from_queue_type(q->properties.type)];
538
539
540 if ((q->properties.type == KFD_QUEUE_TYPE_SDMA) ||
541 (q->properties.type == KFD_QUEUE_TYPE_SDMA_XGMI)) {
542 retval = read_sdma_queue_counter((uint64_t __user *)q->properties.read_ptr,
543 &sdma_val);
544 if (retval)
545 pr_err("Failed to read SDMA queue counter for queue: %d\n",
546 q->properties.queue_id);
547 }
548
549 dqm_lock(dqm);
550 retval = destroy_queue_nocpsch_locked(dqm, qpd, q);
551 if (!retval)
552 pdd->sdma_past_activity_counter += sdma_val;
553 dqm_unlock(dqm);
554
555 mqd_mgr->free_mqd(mqd_mgr, q->mqd, q->mqd_mem_obj);
556
557 return retval;
558}
559
560static int update_queue(struct device_queue_manager *dqm, struct queue *q)
561{
562 int retval = 0;
563 struct mqd_manager *mqd_mgr;
564 struct kfd_process_device *pdd;
565 bool prev_active = false;
566
567 dqm_lock(dqm);
568 pdd = kfd_get_process_device_data(q->device, q->process);
569 if (!pdd) {
570 retval = -ENODEV;
571 goto out_unlock;
572 }
573 mqd_mgr = dqm->mqd_mgrs[get_mqd_type_from_queue_type(
574 q->properties.type)];
575
576
577 prev_active = q->properties.is_active;
578
579
580 if (dqm->sched_policy != KFD_SCHED_POLICY_NO_HWS) {
581 retval = unmap_queues_cpsch(dqm,
582 KFD_UNMAP_QUEUES_FILTER_DYNAMIC_QUEUES, 0);
583 if (retval) {
584 pr_err("unmap queue failed\n");
585 goto out_unlock;
586 }
587 } else if (prev_active &&
588 (q->properties.type == KFD_QUEUE_TYPE_COMPUTE ||
589 q->properties.type == KFD_QUEUE_TYPE_SDMA ||
590 q->properties.type == KFD_QUEUE_TYPE_SDMA_XGMI)) {
591
592 if (!dqm->sched_running) {
593 WARN_ONCE(1, "Update non-HWS queue while stopped\n");
594 goto out_unlock;
595 }
596
597 retval = mqd_mgr->destroy_mqd(mqd_mgr, q->mqd,
598 (dqm->dev->cwsr_enabled?
599 KFD_PREEMPT_TYPE_WAVEFRONT_SAVE:
600 KFD_PREEMPT_TYPE_WAVEFRONT_DRAIN),
601 KFD_UNMAP_LATENCY_MS, q->pipe, q->queue);
602 if (retval) {
603 pr_err("destroy mqd failed\n");
604 goto out_unlock;
605 }
606 }
607
608 mqd_mgr->update_mqd(mqd_mgr, q->mqd, &q->properties);
609
610
611
612
613
614
615
616 if (q->properties.is_active && !prev_active)
617 increment_queue_count(dqm, q->properties.type);
618 else if (!q->properties.is_active && prev_active)
619 decrement_queue_count(dqm, q->properties.type);
620
621 if (q->gws && !q->properties.is_gws) {
622 if (q->properties.is_active) {
623 dqm->gws_queue_count++;
624 pdd->qpd.mapped_gws_queue = true;
625 }
626 q->properties.is_gws = true;
627 } else if (!q->gws && q->properties.is_gws) {
628 if (q->properties.is_active) {
629 dqm->gws_queue_count--;
630 pdd->qpd.mapped_gws_queue = false;
631 }
632 q->properties.is_gws = false;
633 }
634
635 if (dqm->sched_policy != KFD_SCHED_POLICY_NO_HWS)
636 retval = map_queues_cpsch(dqm);
637 else if (q->properties.is_active &&
638 (q->properties.type == KFD_QUEUE_TYPE_COMPUTE ||
639 q->properties.type == KFD_QUEUE_TYPE_SDMA ||
640 q->properties.type == KFD_QUEUE_TYPE_SDMA_XGMI)) {
641 if (WARN(q->process->mm != current->mm,
642 "should only run in user thread"))
643 retval = -EFAULT;
644 else
645 retval = mqd_mgr->load_mqd(mqd_mgr, q->mqd,
646 q->pipe, q->queue,
647 &q->properties, current->mm);
648 }
649
650out_unlock:
651 dqm_unlock(dqm);
652 return retval;
653}
654
655static int evict_process_queues_nocpsch(struct device_queue_manager *dqm,
656 struct qcm_process_device *qpd)
657{
658 struct queue *q;
659 struct mqd_manager *mqd_mgr;
660 struct kfd_process_device *pdd;
661 int retval, ret = 0;
662
663 dqm_lock(dqm);
664 if (qpd->evicted++ > 0)
665 goto out;
666
667 pdd = qpd_to_pdd(qpd);
668 pr_debug_ratelimited("Evicting PASID 0x%x queues\n",
669 pdd->process->pasid);
670
671 pdd->last_evict_timestamp = get_jiffies_64();
672
673
674
675 list_for_each_entry(q, &qpd->queues_list, list) {
676 q->properties.is_evicted = true;
677 if (!q->properties.is_active)
678 continue;
679
680 mqd_mgr = dqm->mqd_mgrs[get_mqd_type_from_queue_type(
681 q->properties.type)];
682 q->properties.is_active = false;
683 decrement_queue_count(dqm, q->properties.type);
684 if (q->properties.is_gws) {
685 dqm->gws_queue_count--;
686 qpd->mapped_gws_queue = false;
687 }
688
689 if (WARN_ONCE(!dqm->sched_running, "Evict when stopped\n"))
690 continue;
691
692 retval = mqd_mgr->destroy_mqd(mqd_mgr, q->mqd,
693 (dqm->dev->cwsr_enabled?
694 KFD_PREEMPT_TYPE_WAVEFRONT_SAVE:
695 KFD_PREEMPT_TYPE_WAVEFRONT_DRAIN),
696 KFD_UNMAP_LATENCY_MS, q->pipe, q->queue);
697 if (retval && !ret)
698
699
700
701 ret = retval;
702 }
703
704out:
705 dqm_unlock(dqm);
706 return ret;
707}
708
709static int evict_process_queues_cpsch(struct device_queue_manager *dqm,
710 struct qcm_process_device *qpd)
711{
712 struct queue *q;
713 struct kfd_process_device *pdd;
714 int retval = 0;
715
716 dqm_lock(dqm);
717 if (qpd->evicted++ > 0)
718 goto out;
719
720 pdd = qpd_to_pdd(qpd);
721 pr_debug_ratelimited("Evicting PASID 0x%x queues\n",
722 pdd->process->pasid);
723
724
725
726
727 list_for_each_entry(q, &qpd->queues_list, list) {
728 q->properties.is_evicted = true;
729 if (!q->properties.is_active)
730 continue;
731
732 q->properties.is_active = false;
733 decrement_queue_count(dqm, q->properties.type);
734 }
735 pdd->last_evict_timestamp = get_jiffies_64();
736 retval = execute_queues_cpsch(dqm,
737 qpd->is_debug ?
738 KFD_UNMAP_QUEUES_FILTER_ALL_QUEUES :
739 KFD_UNMAP_QUEUES_FILTER_DYNAMIC_QUEUES, 0);
740
741out:
742 dqm_unlock(dqm);
743 return retval;
744}
745
746static int restore_process_queues_nocpsch(struct device_queue_manager *dqm,
747 struct qcm_process_device *qpd)
748{
749 struct mm_struct *mm = NULL;
750 struct queue *q;
751 struct mqd_manager *mqd_mgr;
752 struct kfd_process_device *pdd;
753 uint64_t pd_base;
754 uint64_t eviction_duration;
755 int retval, ret = 0;
756
757 pdd = qpd_to_pdd(qpd);
758
759 pd_base = amdgpu_amdkfd_gpuvm_get_process_page_dir(pdd->drm_priv);
760
761 dqm_lock(dqm);
762 if (WARN_ON_ONCE(!qpd->evicted))
763 goto out;
764 if (qpd->evicted > 1) {
765 qpd->evicted--;
766 goto out;
767 }
768
769 pr_debug_ratelimited("Restoring PASID 0x%x queues\n",
770 pdd->process->pasid);
771
772
773 qpd->page_table_base = pd_base;
774 pr_debug("Updated PD address to 0x%llx\n", pd_base);
775
776 if (!list_empty(&qpd->queues_list)) {
777 dqm->dev->kfd2kgd->set_vm_context_page_table_base(
778 dqm->dev->kgd,
779 qpd->vmid,
780 qpd->page_table_base);
781 kfd_flush_tlb(pdd, TLB_FLUSH_LEGACY);
782 }
783
784
785
786
787 mm = get_task_mm(pdd->process->lead_thread);
788 if (!mm) {
789 ret = -EFAULT;
790 goto out;
791 }
792
793
794
795
796 list_for_each_entry(q, &qpd->queues_list, list) {
797 q->properties.is_evicted = false;
798 if (!QUEUE_IS_ACTIVE(q->properties))
799 continue;
800
801 mqd_mgr = dqm->mqd_mgrs[get_mqd_type_from_queue_type(
802 q->properties.type)];
803 q->properties.is_active = true;
804 increment_queue_count(dqm, q->properties.type);
805 if (q->properties.is_gws) {
806 dqm->gws_queue_count++;
807 qpd->mapped_gws_queue = true;
808 }
809
810 if (WARN_ONCE(!dqm->sched_running, "Restore when stopped\n"))
811 continue;
812
813 retval = mqd_mgr->load_mqd(mqd_mgr, q->mqd, q->pipe,
814 q->queue, &q->properties, mm);
815 if (retval && !ret)
816
817
818
819 ret = retval;
820 }
821 qpd->evicted = 0;
822 eviction_duration = get_jiffies_64() - pdd->last_evict_timestamp;
823 atomic64_add(eviction_duration, &pdd->evict_duration_counter);
824out:
825 if (mm)
826 mmput(mm);
827 dqm_unlock(dqm);
828 return ret;
829}
830
831static int restore_process_queues_cpsch(struct device_queue_manager *dqm,
832 struct qcm_process_device *qpd)
833{
834 struct queue *q;
835 struct kfd_process_device *pdd;
836 uint64_t pd_base;
837 uint64_t eviction_duration;
838 int retval = 0;
839
840 pdd = qpd_to_pdd(qpd);
841
842 pd_base = amdgpu_amdkfd_gpuvm_get_process_page_dir(pdd->drm_priv);
843
844 dqm_lock(dqm);
845 if (WARN_ON_ONCE(!qpd->evicted))
846 goto out;
847 if (qpd->evicted > 1) {
848 qpd->evicted--;
849 goto out;
850 }
851
852 pr_debug_ratelimited("Restoring PASID 0x%x queues\n",
853 pdd->process->pasid);
854
855
856 qpd->page_table_base = pd_base;
857 pr_debug("Updated PD address to 0x%llx\n", pd_base);
858
859
860 list_for_each_entry(q, &qpd->queues_list, list) {
861 q->properties.is_evicted = false;
862 if (!QUEUE_IS_ACTIVE(q->properties))
863 continue;
864
865 q->properties.is_active = true;
866 increment_queue_count(dqm, q->properties.type);
867 }
868 retval = execute_queues_cpsch(dqm,
869 KFD_UNMAP_QUEUES_FILTER_DYNAMIC_QUEUES, 0);
870 qpd->evicted = 0;
871 eviction_duration = get_jiffies_64() - pdd->last_evict_timestamp;
872 atomic64_add(eviction_duration, &pdd->evict_duration_counter);
873out:
874 dqm_unlock(dqm);
875 return retval;
876}
877
878static int register_process(struct device_queue_manager *dqm,
879 struct qcm_process_device *qpd)
880{
881 struct device_process_node *n;
882 struct kfd_process_device *pdd;
883 uint64_t pd_base;
884 int retval;
885
886 n = kzalloc(sizeof(*n), GFP_KERNEL);
887 if (!n)
888 return -ENOMEM;
889
890 n->qpd = qpd;
891
892 pdd = qpd_to_pdd(qpd);
893
894 pd_base = amdgpu_amdkfd_gpuvm_get_process_page_dir(pdd->drm_priv);
895
896 dqm_lock(dqm);
897 list_add(&n->list, &dqm->queues);
898
899
900 qpd->page_table_base = pd_base;
901 pr_debug("Updated PD address to 0x%llx\n", pd_base);
902
903 retval = dqm->asic_ops.update_qpd(dqm, qpd);
904
905 dqm->processes_count++;
906
907 dqm_unlock(dqm);
908
909
910
911
912 kfd_inc_compute_active(dqm->dev);
913
914 return retval;
915}
916
917static int unregister_process(struct device_queue_manager *dqm,
918 struct qcm_process_device *qpd)
919{
920 int retval;
921 struct device_process_node *cur, *next;
922
923 pr_debug("qpd->queues_list is %s\n",
924 list_empty(&qpd->queues_list) ? "empty" : "not empty");
925
926 retval = 0;
927 dqm_lock(dqm);
928
929 list_for_each_entry_safe(cur, next, &dqm->queues, list) {
930 if (qpd == cur->qpd) {
931 list_del(&cur->list);
932 kfree(cur);
933 dqm->processes_count--;
934 goto out;
935 }
936 }
937
938 retval = 1;
939out:
940 dqm_unlock(dqm);
941
942
943
944
945 if (!retval)
946 kfd_dec_compute_active(dqm->dev);
947
948 return retval;
949}
950
951static int
952set_pasid_vmid_mapping(struct device_queue_manager *dqm, u32 pasid,
953 unsigned int vmid)
954{
955 return dqm->dev->kfd2kgd->set_pasid_vmid_mapping(
956 dqm->dev->kgd, pasid, vmid);
957}
958
959static void init_interrupts(struct device_queue_manager *dqm)
960{
961 unsigned int i;
962
963 for (i = 0 ; i < get_pipes_per_mec(dqm) ; i++)
964 if (is_pipe_enabled(dqm, 0, i))
965 dqm->dev->kfd2kgd->init_interrupts(dqm->dev->kgd, i);
966}
967
968static int initialize_nocpsch(struct device_queue_manager *dqm)
969{
970 int pipe, queue;
971
972 pr_debug("num of pipes: %d\n", get_pipes_per_mec(dqm));
973
974 dqm->allocated_queues = kcalloc(get_pipes_per_mec(dqm),
975 sizeof(unsigned int), GFP_KERNEL);
976 if (!dqm->allocated_queues)
977 return -ENOMEM;
978
979 mutex_init(&dqm->lock_hidden);
980 INIT_LIST_HEAD(&dqm->queues);
981 dqm->active_queue_count = dqm->next_pipe_to_allocate = 0;
982 dqm->active_cp_queue_count = 0;
983 dqm->gws_queue_count = 0;
984
985 for (pipe = 0; pipe < get_pipes_per_mec(dqm); pipe++) {
986 int pipe_offset = pipe * get_queues_per_pipe(dqm);
987
988 for (queue = 0; queue < get_queues_per_pipe(dqm); queue++)
989 if (test_bit(pipe_offset + queue,
990 dqm->dev->shared_resources.cp_queue_bitmap))
991 dqm->allocated_queues[pipe] |= 1 << queue;
992 }
993
994 memset(dqm->vmid_pasid, 0, sizeof(dqm->vmid_pasid));
995
996 dqm->sdma_bitmap = ~0ULL >> (64 - get_num_sdma_queues(dqm));
997 dqm->xgmi_sdma_bitmap = ~0ULL >> (64 - get_num_xgmi_sdma_queues(dqm));
998
999 return 0;
1000}
1001
1002static void uninitialize(struct device_queue_manager *dqm)
1003{
1004 int i;
1005
1006 WARN_ON(dqm->active_queue_count > 0 || dqm->processes_count > 0);
1007
1008 kfree(dqm->allocated_queues);
1009 for (i = 0 ; i < KFD_MQD_TYPE_MAX ; i++)
1010 kfree(dqm->mqd_mgrs[i]);
1011 mutex_destroy(&dqm->lock_hidden);
1012}
1013
1014static int start_nocpsch(struct device_queue_manager *dqm)
1015{
1016 pr_info("SW scheduler is used");
1017 init_interrupts(dqm);
1018
1019 if (dqm->dev->device_info->asic_family == CHIP_HAWAII)
1020 return pm_init(&dqm->packet_mgr, dqm);
1021 dqm->sched_running = true;
1022
1023 return 0;
1024}
1025
1026static int stop_nocpsch(struct device_queue_manager *dqm)
1027{
1028 if (dqm->dev->device_info->asic_family == CHIP_HAWAII)
1029 pm_uninit(&dqm->packet_mgr, false);
1030 dqm->sched_running = false;
1031
1032 return 0;
1033}
1034
1035static void pre_reset(struct device_queue_manager *dqm)
1036{
1037 dqm_lock(dqm);
1038 dqm->is_resetting = true;
1039 dqm_unlock(dqm);
1040}
1041
1042static int allocate_sdma_queue(struct device_queue_manager *dqm,
1043 struct queue *q)
1044{
1045 int bit;
1046
1047 if (q->properties.type == KFD_QUEUE_TYPE_SDMA) {
1048 if (dqm->sdma_bitmap == 0) {
1049 pr_err("No more SDMA queue to allocate\n");
1050 return -ENOMEM;
1051 }
1052
1053 bit = __ffs64(dqm->sdma_bitmap);
1054 dqm->sdma_bitmap &= ~(1ULL << bit);
1055 q->sdma_id = bit;
1056 q->properties.sdma_engine_id = q->sdma_id %
1057 get_num_sdma_engines(dqm);
1058 q->properties.sdma_queue_id = q->sdma_id /
1059 get_num_sdma_engines(dqm);
1060 } else if (q->properties.type == KFD_QUEUE_TYPE_SDMA_XGMI) {
1061 if (dqm->xgmi_sdma_bitmap == 0) {
1062 pr_err("No more XGMI SDMA queue to allocate\n");
1063 return -ENOMEM;
1064 }
1065 bit = __ffs64(dqm->xgmi_sdma_bitmap);
1066 dqm->xgmi_sdma_bitmap &= ~(1ULL << bit);
1067 q->sdma_id = bit;
1068
1069
1070
1071
1072
1073
1074 q->properties.sdma_engine_id = get_num_sdma_engines(dqm) +
1075 q->sdma_id % get_num_xgmi_sdma_engines(dqm);
1076 q->properties.sdma_queue_id = q->sdma_id /
1077 get_num_xgmi_sdma_engines(dqm);
1078 }
1079
1080 pr_debug("SDMA engine id: %d\n", q->properties.sdma_engine_id);
1081 pr_debug("SDMA queue id: %d\n", q->properties.sdma_queue_id);
1082
1083 return 0;
1084}
1085
1086static void deallocate_sdma_queue(struct device_queue_manager *dqm,
1087 struct queue *q)
1088{
1089 if (q->properties.type == KFD_QUEUE_TYPE_SDMA) {
1090 if (q->sdma_id >= get_num_sdma_queues(dqm))
1091 return;
1092 dqm->sdma_bitmap |= (1ULL << q->sdma_id);
1093 } else if (q->properties.type == KFD_QUEUE_TYPE_SDMA_XGMI) {
1094 if (q->sdma_id >= get_num_xgmi_sdma_queues(dqm))
1095 return;
1096 dqm->xgmi_sdma_bitmap |= (1ULL << q->sdma_id);
1097 }
1098}
1099
1100
1101
1102
1103
1104static int set_sched_resources(struct device_queue_manager *dqm)
1105{
1106 int i, mec;
1107 struct scheduling_resources res;
1108
1109 res.vmid_mask = dqm->dev->shared_resources.compute_vmid_bitmap;
1110
1111 res.queue_mask = 0;
1112 for (i = 0; i < KGD_MAX_QUEUES; ++i) {
1113 mec = (i / dqm->dev->shared_resources.num_queue_per_pipe)
1114 / dqm->dev->shared_resources.num_pipe_per_mec;
1115
1116 if (!test_bit(i, dqm->dev->shared_resources.cp_queue_bitmap))
1117 continue;
1118
1119
1120 if (mec > 0)
1121 continue;
1122
1123
1124
1125
1126
1127 if (WARN_ON(i >= (sizeof(res.queue_mask)*8))) {
1128 pr_err("Invalid queue enabled by amdgpu: %d\n", i);
1129 break;
1130 }
1131
1132 res.queue_mask |= 1ull
1133 << amdgpu_queue_mask_bit_to_set_resource_bit(
1134 (struct amdgpu_device *)dqm->dev->kgd, i);
1135 }
1136 res.gws_mask = ~0ull;
1137 res.oac_mask = res.gds_heap_base = res.gds_heap_size = 0;
1138
1139 pr_debug("Scheduling resources:\n"
1140 "vmid mask: 0x%8X\n"
1141 "queue mask: 0x%8llX\n",
1142 res.vmid_mask, res.queue_mask);
1143
1144 return pm_send_set_resources(&dqm->packet_mgr, &res);
1145}
1146
1147static int initialize_cpsch(struct device_queue_manager *dqm)
1148{
1149 uint64_t num_sdma_queues;
1150 uint64_t num_xgmi_sdma_queues;
1151
1152 pr_debug("num of pipes: %d\n", get_pipes_per_mec(dqm));
1153
1154 mutex_init(&dqm->lock_hidden);
1155 INIT_LIST_HEAD(&dqm->queues);
1156 dqm->active_queue_count = dqm->processes_count = 0;
1157 dqm->active_cp_queue_count = 0;
1158 dqm->gws_queue_count = 0;
1159 dqm->active_runlist = false;
1160
1161 num_sdma_queues = get_num_sdma_queues(dqm);
1162 if (num_sdma_queues >= BITS_PER_TYPE(dqm->sdma_bitmap))
1163 dqm->sdma_bitmap = ULLONG_MAX;
1164 else
1165 dqm->sdma_bitmap = (BIT_ULL(num_sdma_queues) - 1);
1166
1167 num_xgmi_sdma_queues = get_num_xgmi_sdma_queues(dqm);
1168 if (num_xgmi_sdma_queues >= BITS_PER_TYPE(dqm->xgmi_sdma_bitmap))
1169 dqm->xgmi_sdma_bitmap = ULLONG_MAX;
1170 else
1171 dqm->xgmi_sdma_bitmap = (BIT_ULL(num_xgmi_sdma_queues) - 1);
1172
1173 INIT_WORK(&dqm->hw_exception_work, kfd_process_hw_exception);
1174
1175 return 0;
1176}
1177
1178static int start_cpsch(struct device_queue_manager *dqm)
1179{
1180 int retval;
1181
1182 retval = 0;
1183
1184 dqm_lock(dqm);
1185 retval = pm_init(&dqm->packet_mgr, dqm);
1186 if (retval)
1187 goto fail_packet_manager_init;
1188
1189 retval = set_sched_resources(dqm);
1190 if (retval)
1191 goto fail_set_sched_resources;
1192
1193 pr_debug("Allocating fence memory\n");
1194
1195
1196 retval = kfd_gtt_sa_allocate(dqm->dev, sizeof(*dqm->fence_addr),
1197 &dqm->fence_mem);
1198
1199 if (retval)
1200 goto fail_allocate_vidmem;
1201
1202 dqm->fence_addr = (uint64_t *)dqm->fence_mem->cpu_ptr;
1203 dqm->fence_gpu_addr = dqm->fence_mem->gpu_addr;
1204
1205 init_interrupts(dqm);
1206
1207
1208 dqm->is_hws_hang = false;
1209 dqm->is_resetting = false;
1210 dqm->sched_running = true;
1211 execute_queues_cpsch(dqm, KFD_UNMAP_QUEUES_FILTER_DYNAMIC_QUEUES, 0);
1212 dqm_unlock(dqm);
1213
1214 return 0;
1215fail_allocate_vidmem:
1216fail_set_sched_resources:
1217 pm_uninit(&dqm->packet_mgr, false);
1218fail_packet_manager_init:
1219 dqm_unlock(dqm);
1220 return retval;
1221}
1222
1223static int stop_cpsch(struct device_queue_manager *dqm)
1224{
1225 bool hanging;
1226
1227 dqm_lock(dqm);
1228 if (!dqm->is_hws_hang)
1229 unmap_queues_cpsch(dqm, KFD_UNMAP_QUEUES_FILTER_ALL_QUEUES, 0);
1230 hanging = dqm->is_hws_hang || dqm->is_resetting;
1231 dqm->sched_running = false;
1232
1233 pm_release_ib(&dqm->packet_mgr);
1234
1235 kfd_gtt_sa_free(dqm->dev, dqm->fence_mem);
1236 pm_uninit(&dqm->packet_mgr, hanging);
1237 dqm_unlock(dqm);
1238
1239 return 0;
1240}
1241
1242static int create_kernel_queue_cpsch(struct device_queue_manager *dqm,
1243 struct kernel_queue *kq,
1244 struct qcm_process_device *qpd)
1245{
1246 dqm_lock(dqm);
1247 if (dqm->total_queue_count >= max_num_of_queues_per_device) {
1248 pr_warn("Can't create new kernel queue because %d queues were already created\n",
1249 dqm->total_queue_count);
1250 dqm_unlock(dqm);
1251 return -EPERM;
1252 }
1253
1254
1255
1256
1257
1258 dqm->total_queue_count++;
1259 pr_debug("Total of %d queues are accountable so far\n",
1260 dqm->total_queue_count);
1261
1262 list_add(&kq->list, &qpd->priv_queue_list);
1263 increment_queue_count(dqm, kq->queue->properties.type);
1264 qpd->is_debug = true;
1265 execute_queues_cpsch(dqm, KFD_UNMAP_QUEUES_FILTER_DYNAMIC_QUEUES, 0);
1266 dqm_unlock(dqm);
1267
1268 return 0;
1269}
1270
1271static void destroy_kernel_queue_cpsch(struct device_queue_manager *dqm,
1272 struct kernel_queue *kq,
1273 struct qcm_process_device *qpd)
1274{
1275 dqm_lock(dqm);
1276 list_del(&kq->list);
1277 decrement_queue_count(dqm, kq->queue->properties.type);
1278 qpd->is_debug = false;
1279 execute_queues_cpsch(dqm, KFD_UNMAP_QUEUES_FILTER_ALL_QUEUES, 0);
1280
1281
1282
1283
1284 dqm->total_queue_count--;
1285 pr_debug("Total of %d queues are accountable so far\n",
1286 dqm->total_queue_count);
1287 dqm_unlock(dqm);
1288}
1289
1290static int create_queue_cpsch(struct device_queue_manager *dqm, struct queue *q,
1291 struct qcm_process_device *qpd)
1292{
1293 int retval;
1294 struct mqd_manager *mqd_mgr;
1295
1296 if (dqm->total_queue_count >= max_num_of_queues_per_device) {
1297 pr_warn("Can't create new usermode queue because %d queues were already created\n",
1298 dqm->total_queue_count);
1299 retval = -EPERM;
1300 goto out;
1301 }
1302
1303 if (q->properties.type == KFD_QUEUE_TYPE_SDMA ||
1304 q->properties.type == KFD_QUEUE_TYPE_SDMA_XGMI) {
1305 dqm_lock(dqm);
1306 retval = allocate_sdma_queue(dqm, q);
1307 dqm_unlock(dqm);
1308 if (retval)
1309 goto out;
1310 }
1311
1312 retval = allocate_doorbell(qpd, q);
1313 if (retval)
1314 goto out_deallocate_sdma_queue;
1315
1316 mqd_mgr = dqm->mqd_mgrs[get_mqd_type_from_queue_type(
1317 q->properties.type)];
1318
1319 if (q->properties.type == KFD_QUEUE_TYPE_SDMA ||
1320 q->properties.type == KFD_QUEUE_TYPE_SDMA_XGMI)
1321 dqm->asic_ops.init_sdma_vm(dqm, q, qpd);
1322 q->properties.tba_addr = qpd->tba_addr;
1323 q->properties.tma_addr = qpd->tma_addr;
1324 q->mqd_mem_obj = mqd_mgr->allocate_mqd(mqd_mgr->dev, &q->properties);
1325 if (!q->mqd_mem_obj) {
1326 retval = -ENOMEM;
1327 goto out_deallocate_doorbell;
1328 }
1329
1330 dqm_lock(dqm);
1331
1332
1333
1334
1335
1336 q->properties.is_evicted = !!qpd->evicted;
1337 mqd_mgr->init_mqd(mqd_mgr, &q->mqd, q->mqd_mem_obj,
1338 &q->gart_mqd_addr, &q->properties);
1339
1340 list_add(&q->list, &qpd->queues_list);
1341 qpd->queue_count++;
1342
1343 if (q->properties.is_active) {
1344 increment_queue_count(dqm, q->properties.type);
1345
1346 execute_queues_cpsch(dqm,
1347 KFD_UNMAP_QUEUES_FILTER_DYNAMIC_QUEUES, 0);
1348 }
1349
1350
1351
1352
1353
1354 dqm->total_queue_count++;
1355
1356 pr_debug("Total of %d queues are accountable so far\n",
1357 dqm->total_queue_count);
1358
1359 dqm_unlock(dqm);
1360 return retval;
1361
1362out_deallocate_doorbell:
1363 deallocate_doorbell(qpd, q);
1364out_deallocate_sdma_queue:
1365 if (q->properties.type == KFD_QUEUE_TYPE_SDMA ||
1366 q->properties.type == KFD_QUEUE_TYPE_SDMA_XGMI) {
1367 dqm_lock(dqm);
1368 deallocate_sdma_queue(dqm, q);
1369 dqm_unlock(dqm);
1370 }
1371out:
1372 return retval;
1373}
1374
1375int amdkfd_fence_wait_timeout(uint64_t *fence_addr,
1376 uint64_t fence_value,
1377 unsigned int timeout_ms)
1378{
1379 unsigned long end_jiffies = msecs_to_jiffies(timeout_ms) + jiffies;
1380
1381 while (*fence_addr != fence_value) {
1382 if (time_after(jiffies, end_jiffies)) {
1383 pr_err("qcm fence wait loop timeout expired\n");
1384
1385
1386
1387
1388 while (halt_if_hws_hang)
1389 schedule();
1390
1391 return -ETIME;
1392 }
1393 schedule();
1394 }
1395
1396 return 0;
1397}
1398
1399
1400static int map_queues_cpsch(struct device_queue_manager *dqm)
1401{
1402 int retval;
1403
1404 if (!dqm->sched_running)
1405 return 0;
1406 if (dqm->active_queue_count <= 0 || dqm->processes_count <= 0)
1407 return 0;
1408 if (dqm->active_runlist)
1409 return 0;
1410
1411 retval = pm_send_runlist(&dqm->packet_mgr, &dqm->queues);
1412 pr_debug("%s sent runlist\n", __func__);
1413 if (retval) {
1414 pr_err("failed to execute runlist\n");
1415 return retval;
1416 }
1417 dqm->active_runlist = true;
1418
1419 return retval;
1420}
1421
1422
1423static int unmap_queues_cpsch(struct device_queue_manager *dqm,
1424 enum kfd_unmap_queues_filter filter,
1425 uint32_t filter_param)
1426{
1427 int retval = 0;
1428 struct mqd_manager *mqd_mgr;
1429
1430 if (!dqm->sched_running)
1431 return 0;
1432 if (dqm->is_hws_hang)
1433 return -EIO;
1434 if (!dqm->active_runlist)
1435 return retval;
1436
1437 retval = pm_send_unmap_queue(&dqm->packet_mgr, KFD_QUEUE_TYPE_COMPUTE,
1438 filter, filter_param, false, 0);
1439 if (retval)
1440 return retval;
1441
1442 *dqm->fence_addr = KFD_FENCE_INIT;
1443 pm_send_query_status(&dqm->packet_mgr, dqm->fence_gpu_addr,
1444 KFD_FENCE_COMPLETED);
1445
1446 retval = amdkfd_fence_wait_timeout(dqm->fence_addr, KFD_FENCE_COMPLETED,
1447 queue_preemption_timeout_ms);
1448 if (retval) {
1449 pr_err("The cp might be in an unrecoverable state due to an unsuccessful queues preemption\n");
1450 dqm->is_hws_hang = true;
1451
1452
1453
1454
1455 if (!dqm->is_resetting)
1456 schedule_work(&dqm->hw_exception_work);
1457 return retval;
1458 }
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468 mqd_mgr = dqm->mqd_mgrs[KFD_MQD_TYPE_HIQ];
1469 if (mqd_mgr->read_doorbell_id(dqm->packet_mgr.priv_queue->queue->mqd)) {
1470 pr_err("HIQ MQD's queue_doorbell_id0 is not 0, Queue preemption time out\n");
1471 while (halt_if_hws_hang)
1472 schedule();
1473 return -ETIME;
1474 }
1475
1476 pm_release_ib(&dqm->packet_mgr);
1477 dqm->active_runlist = false;
1478
1479 return retval;
1480}
1481
1482
1483static int execute_queues_cpsch(struct device_queue_manager *dqm,
1484 enum kfd_unmap_queues_filter filter,
1485 uint32_t filter_param)
1486{
1487 int retval;
1488
1489 if (dqm->is_hws_hang)
1490 return -EIO;
1491 retval = unmap_queues_cpsch(dqm, filter, filter_param);
1492 if (retval)
1493 return retval;
1494
1495 return map_queues_cpsch(dqm);
1496}
1497
1498static int destroy_queue_cpsch(struct device_queue_manager *dqm,
1499 struct qcm_process_device *qpd,
1500 struct queue *q)
1501{
1502 int retval;
1503 struct mqd_manager *mqd_mgr;
1504 uint64_t sdma_val = 0;
1505 struct kfd_process_device *pdd = qpd_to_pdd(qpd);
1506
1507
1508 if ((q->properties.type == KFD_QUEUE_TYPE_SDMA) ||
1509 (q->properties.type == KFD_QUEUE_TYPE_SDMA_XGMI)) {
1510 retval = read_sdma_queue_counter((uint64_t __user *)q->properties.read_ptr,
1511 &sdma_val);
1512 if (retval)
1513 pr_err("Failed to read SDMA queue counter for queue: %d\n",
1514 q->properties.queue_id);
1515 }
1516
1517 retval = 0;
1518
1519
1520 dqm_lock(dqm);
1521
1522 if (qpd->is_debug) {
1523
1524
1525
1526
1527 retval = -EBUSY;
1528 goto failed_try_destroy_debugged_queue;
1529
1530 }
1531
1532 mqd_mgr = dqm->mqd_mgrs[get_mqd_type_from_queue_type(
1533 q->properties.type)];
1534
1535 deallocate_doorbell(qpd, q);
1536
1537 if ((q->properties.type == KFD_QUEUE_TYPE_SDMA) ||
1538 (q->properties.type == KFD_QUEUE_TYPE_SDMA_XGMI)) {
1539 deallocate_sdma_queue(dqm, q);
1540 pdd->sdma_past_activity_counter += sdma_val;
1541 }
1542
1543 list_del(&q->list);
1544 qpd->queue_count--;
1545 if (q->properties.is_active) {
1546 decrement_queue_count(dqm, q->properties.type);
1547 retval = execute_queues_cpsch(dqm,
1548 KFD_UNMAP_QUEUES_FILTER_DYNAMIC_QUEUES, 0);
1549 if (retval == -ETIME)
1550 qpd->reset_wavefronts = true;
1551 if (q->properties.is_gws) {
1552 dqm->gws_queue_count--;
1553 qpd->mapped_gws_queue = false;
1554 }
1555 }
1556
1557
1558
1559
1560
1561 dqm->total_queue_count--;
1562 pr_debug("Total of %d queues are accountable so far\n",
1563 dqm->total_queue_count);
1564
1565 dqm_unlock(dqm);
1566
1567
1568 mqd_mgr->free_mqd(mqd_mgr, q->mqd, q->mqd_mem_obj);
1569
1570 return retval;
1571
1572failed_try_destroy_debugged_queue:
1573
1574 dqm_unlock(dqm);
1575 return retval;
1576}
1577
1578
1579
1580
1581
1582#define APE1_FIXED_BITS_MASK 0xFFFF80000000FFFFULL
1583
1584#define APE1_LIMIT_ALIGNMENT 0xFFFF
1585
1586static bool set_cache_memory_policy(struct device_queue_manager *dqm,
1587 struct qcm_process_device *qpd,
1588 enum cache_policy default_policy,
1589 enum cache_policy alternate_policy,
1590 void __user *alternate_aperture_base,
1591 uint64_t alternate_aperture_size)
1592{
1593 bool retval = true;
1594
1595 if (!dqm->asic_ops.set_cache_memory_policy)
1596 return retval;
1597
1598 dqm_lock(dqm);
1599
1600 if (alternate_aperture_size == 0) {
1601
1602 qpd->sh_mem_ape1_base = 1;
1603 qpd->sh_mem_ape1_limit = 0;
1604 } else {
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615 uint64_t base = (uintptr_t)alternate_aperture_base;
1616 uint64_t limit = base + alternate_aperture_size - 1;
1617
1618 if (limit <= base || (base & APE1_FIXED_BITS_MASK) != 0 ||
1619 (limit & APE1_FIXED_BITS_MASK) != APE1_LIMIT_ALIGNMENT) {
1620 retval = false;
1621 goto out;
1622 }
1623
1624 qpd->sh_mem_ape1_base = base >> 16;
1625 qpd->sh_mem_ape1_limit = limit >> 16;
1626 }
1627
1628 retval = dqm->asic_ops.set_cache_memory_policy(
1629 dqm,
1630 qpd,
1631 default_policy,
1632 alternate_policy,
1633 alternate_aperture_base,
1634 alternate_aperture_size);
1635
1636 if ((dqm->sched_policy == KFD_SCHED_POLICY_NO_HWS) && (qpd->vmid != 0))
1637 program_sh_mem_settings(dqm, qpd);
1638
1639 pr_debug("sh_mem_config: 0x%x, ape1_base: 0x%x, ape1_limit: 0x%x\n",
1640 qpd->sh_mem_config, qpd->sh_mem_ape1_base,
1641 qpd->sh_mem_ape1_limit);
1642
1643out:
1644 dqm_unlock(dqm);
1645 return retval;
1646}
1647
1648static int process_termination_nocpsch(struct device_queue_manager *dqm,
1649 struct qcm_process_device *qpd)
1650{
1651 struct queue *q;
1652 struct device_process_node *cur, *next_dpn;
1653 int retval = 0;
1654 bool found = false;
1655
1656 dqm_lock(dqm);
1657
1658
1659 while (!list_empty(&qpd->queues_list)) {
1660 struct mqd_manager *mqd_mgr;
1661 int ret;
1662
1663 q = list_first_entry(&qpd->queues_list, struct queue, list);
1664 mqd_mgr = dqm->mqd_mgrs[get_mqd_type_from_queue_type(
1665 q->properties.type)];
1666 ret = destroy_queue_nocpsch_locked(dqm, qpd, q);
1667 if (ret)
1668 retval = ret;
1669 dqm_unlock(dqm);
1670 mqd_mgr->free_mqd(mqd_mgr, q->mqd, q->mqd_mem_obj);
1671 dqm_lock(dqm);
1672 }
1673
1674
1675 list_for_each_entry_safe(cur, next_dpn, &dqm->queues, list) {
1676 if (qpd == cur->qpd) {
1677 list_del(&cur->list);
1678 kfree(cur);
1679 dqm->processes_count--;
1680 found = true;
1681 break;
1682 }
1683 }
1684
1685 dqm_unlock(dqm);
1686
1687
1688
1689
1690 if (found)
1691 kfd_dec_compute_active(dqm->dev);
1692
1693 return retval;
1694}
1695
1696static int get_wave_state(struct device_queue_manager *dqm,
1697 struct queue *q,
1698 void __user *ctl_stack,
1699 u32 *ctl_stack_used_size,
1700 u32 *save_area_used_size)
1701{
1702 struct mqd_manager *mqd_mgr;
1703
1704 dqm_lock(dqm);
1705
1706 mqd_mgr = dqm->mqd_mgrs[KFD_MQD_TYPE_CP];
1707
1708 if (q->properties.type != KFD_QUEUE_TYPE_COMPUTE ||
1709 q->properties.is_active || !q->device->cwsr_enabled ||
1710 !mqd_mgr->get_wave_state) {
1711 dqm_unlock(dqm);
1712 return -EINVAL;
1713 }
1714
1715 dqm_unlock(dqm);
1716
1717
1718
1719
1720
1721
1722 return mqd_mgr->get_wave_state(mqd_mgr, q->mqd, ctl_stack,
1723 ctl_stack_used_size, save_area_used_size);
1724}
1725
1726static int process_termination_cpsch(struct device_queue_manager *dqm,
1727 struct qcm_process_device *qpd)
1728{
1729 int retval;
1730 struct queue *q;
1731 struct kernel_queue *kq, *kq_next;
1732 struct mqd_manager *mqd_mgr;
1733 struct device_process_node *cur, *next_dpn;
1734 enum kfd_unmap_queues_filter filter =
1735 KFD_UNMAP_QUEUES_FILTER_DYNAMIC_QUEUES;
1736 bool found = false;
1737
1738 retval = 0;
1739
1740 dqm_lock(dqm);
1741
1742
1743 list_for_each_entry_safe(kq, kq_next, &qpd->priv_queue_list, list) {
1744 list_del(&kq->list);
1745 decrement_queue_count(dqm, kq->queue->properties.type);
1746 qpd->is_debug = false;
1747 dqm->total_queue_count--;
1748 filter = KFD_UNMAP_QUEUES_FILTER_ALL_QUEUES;
1749 }
1750
1751
1752 list_for_each_entry(q, &qpd->queues_list, list) {
1753 if (q->properties.type == KFD_QUEUE_TYPE_SDMA)
1754 deallocate_sdma_queue(dqm, q);
1755 else if (q->properties.type == KFD_QUEUE_TYPE_SDMA_XGMI)
1756 deallocate_sdma_queue(dqm, q);
1757
1758 if (q->properties.is_active) {
1759 decrement_queue_count(dqm, q->properties.type);
1760 if (q->properties.is_gws) {
1761 dqm->gws_queue_count--;
1762 qpd->mapped_gws_queue = false;
1763 }
1764 }
1765
1766 dqm->total_queue_count--;
1767 }
1768
1769
1770 list_for_each_entry_safe(cur, next_dpn, &dqm->queues, list) {
1771 if (qpd == cur->qpd) {
1772 list_del(&cur->list);
1773 kfree(cur);
1774 dqm->processes_count--;
1775 found = true;
1776 break;
1777 }
1778 }
1779
1780 retval = execute_queues_cpsch(dqm, filter, 0);
1781 if ((!dqm->is_hws_hang) && (retval || qpd->reset_wavefronts)) {
1782 pr_warn("Resetting wave fronts (cpsch) on dev %p\n", dqm->dev);
1783 dbgdev_wave_reset_wavefronts(dqm->dev, qpd->pqm->process);
1784 qpd->reset_wavefronts = false;
1785 }
1786
1787
1788
1789
1790 while (!list_empty(&qpd->queues_list)) {
1791 q = list_first_entry(&qpd->queues_list, struct queue, list);
1792 mqd_mgr = dqm->mqd_mgrs[get_mqd_type_from_queue_type(
1793 q->properties.type)];
1794 list_del(&q->list);
1795 qpd->queue_count--;
1796 dqm_unlock(dqm);
1797 mqd_mgr->free_mqd(mqd_mgr, q->mqd, q->mqd_mem_obj);
1798 dqm_lock(dqm);
1799 }
1800 dqm_unlock(dqm);
1801
1802
1803
1804
1805 if (found)
1806 kfd_dec_compute_active(dqm->dev);
1807
1808 return retval;
1809}
1810
1811static int init_mqd_managers(struct device_queue_manager *dqm)
1812{
1813 int i, j;
1814 struct mqd_manager *mqd_mgr;
1815
1816 for (i = 0; i < KFD_MQD_TYPE_MAX; i++) {
1817 mqd_mgr = dqm->asic_ops.mqd_manager_init(i, dqm->dev);
1818 if (!mqd_mgr) {
1819 pr_err("mqd manager [%d] initialization failed\n", i);
1820 goto out_free;
1821 }
1822 dqm->mqd_mgrs[i] = mqd_mgr;
1823 }
1824
1825 return 0;
1826
1827out_free:
1828 for (j = 0; j < i; j++) {
1829 kfree(dqm->mqd_mgrs[j]);
1830 dqm->mqd_mgrs[j] = NULL;
1831 }
1832
1833 return -ENOMEM;
1834}
1835
1836
1837static int allocate_hiq_sdma_mqd(struct device_queue_manager *dqm)
1838{
1839 int retval;
1840 struct kfd_dev *dev = dqm->dev;
1841 struct kfd_mem_obj *mem_obj = &dqm->hiq_sdma_mqd;
1842 uint32_t size = dqm->mqd_mgrs[KFD_MQD_TYPE_SDMA]->mqd_size *
1843 get_num_all_sdma_engines(dqm) *
1844 dev->device_info->num_sdma_queues_per_engine +
1845 dqm->mqd_mgrs[KFD_MQD_TYPE_HIQ]->mqd_size;
1846
1847 retval = amdgpu_amdkfd_alloc_gtt_mem(dev->kgd, size,
1848 &(mem_obj->gtt_mem), &(mem_obj->gpu_addr),
1849 (void *)&(mem_obj->cpu_ptr), false);
1850
1851 return retval;
1852}
1853
1854struct device_queue_manager *device_queue_manager_init(struct kfd_dev *dev)
1855{
1856 struct device_queue_manager *dqm;
1857
1858 pr_debug("Loading device queue manager\n");
1859
1860 dqm = kzalloc(sizeof(*dqm), GFP_KERNEL);
1861 if (!dqm)
1862 return NULL;
1863
1864 switch (dev->device_info->asic_family) {
1865
1866 case CHIP_HAWAII:
1867
1868
1869
1870
1871
1872 case CHIP_TONGA:
1873 dqm->sched_policy = KFD_SCHED_POLICY_NO_HWS;
1874 break;
1875 default:
1876 dqm->sched_policy = sched_policy;
1877 break;
1878 }
1879
1880 dqm->dev = dev;
1881 switch (dqm->sched_policy) {
1882 case KFD_SCHED_POLICY_HWS:
1883 case KFD_SCHED_POLICY_HWS_NO_OVERSUBSCRIPTION:
1884
1885 dqm->ops.create_queue = create_queue_cpsch;
1886 dqm->ops.initialize = initialize_cpsch;
1887 dqm->ops.start = start_cpsch;
1888 dqm->ops.stop = stop_cpsch;
1889 dqm->ops.pre_reset = pre_reset;
1890 dqm->ops.destroy_queue = destroy_queue_cpsch;
1891 dqm->ops.update_queue = update_queue;
1892 dqm->ops.register_process = register_process;
1893 dqm->ops.unregister_process = unregister_process;
1894 dqm->ops.uninitialize = uninitialize;
1895 dqm->ops.create_kernel_queue = create_kernel_queue_cpsch;
1896 dqm->ops.destroy_kernel_queue = destroy_kernel_queue_cpsch;
1897 dqm->ops.set_cache_memory_policy = set_cache_memory_policy;
1898 dqm->ops.process_termination = process_termination_cpsch;
1899 dqm->ops.evict_process_queues = evict_process_queues_cpsch;
1900 dqm->ops.restore_process_queues = restore_process_queues_cpsch;
1901 dqm->ops.get_wave_state = get_wave_state;
1902 break;
1903 case KFD_SCHED_POLICY_NO_HWS:
1904
1905 dqm->ops.start = start_nocpsch;
1906 dqm->ops.stop = stop_nocpsch;
1907 dqm->ops.pre_reset = pre_reset;
1908 dqm->ops.create_queue = create_queue_nocpsch;
1909 dqm->ops.destroy_queue = destroy_queue_nocpsch;
1910 dqm->ops.update_queue = update_queue;
1911 dqm->ops.register_process = register_process;
1912 dqm->ops.unregister_process = unregister_process;
1913 dqm->ops.initialize = initialize_nocpsch;
1914 dqm->ops.uninitialize = uninitialize;
1915 dqm->ops.set_cache_memory_policy = set_cache_memory_policy;
1916 dqm->ops.process_termination = process_termination_nocpsch;
1917 dqm->ops.evict_process_queues = evict_process_queues_nocpsch;
1918 dqm->ops.restore_process_queues =
1919 restore_process_queues_nocpsch;
1920 dqm->ops.get_wave_state = get_wave_state;
1921 break;
1922 default:
1923 pr_err("Invalid scheduling policy %d\n", dqm->sched_policy);
1924 goto out_free;
1925 }
1926
1927 switch (dev->device_info->asic_family) {
1928 case CHIP_CARRIZO:
1929 device_queue_manager_init_vi(&dqm->asic_ops);
1930 break;
1931
1932 case CHIP_KAVERI:
1933 device_queue_manager_init_cik(&dqm->asic_ops);
1934 break;
1935
1936 case CHIP_HAWAII:
1937 device_queue_manager_init_cik_hawaii(&dqm->asic_ops);
1938 break;
1939
1940 case CHIP_TONGA:
1941 case CHIP_FIJI:
1942 case CHIP_POLARIS10:
1943 case CHIP_POLARIS11:
1944 case CHIP_POLARIS12:
1945 case CHIP_VEGAM:
1946 device_queue_manager_init_vi_tonga(&dqm->asic_ops);
1947 break;
1948
1949 case CHIP_VEGA10:
1950 case CHIP_VEGA12:
1951 case CHIP_VEGA20:
1952 case CHIP_RAVEN:
1953 case CHIP_RENOIR:
1954 case CHIP_ARCTURUS:
1955 case CHIP_ALDEBARAN:
1956 device_queue_manager_init_v9(&dqm->asic_ops);
1957 break;
1958 case CHIP_NAVI10:
1959 case CHIP_NAVI12:
1960 case CHIP_NAVI14:
1961 case CHIP_SIENNA_CICHLID:
1962 case CHIP_NAVY_FLOUNDER:
1963 case CHIP_VANGOGH:
1964 case CHIP_DIMGREY_CAVEFISH:
1965 case CHIP_BEIGE_GOBY:
1966 case CHIP_YELLOW_CARP:
1967 case CHIP_CYAN_SKILLFISH:
1968 device_queue_manager_init_v10_navi10(&dqm->asic_ops);
1969 break;
1970 default:
1971 WARN(1, "Unexpected ASIC family %u",
1972 dev->device_info->asic_family);
1973 goto out_free;
1974 }
1975
1976 if (init_mqd_managers(dqm))
1977 goto out_free;
1978
1979 if (allocate_hiq_sdma_mqd(dqm)) {
1980 pr_err("Failed to allocate hiq sdma mqd trunk buffer\n");
1981 goto out_free;
1982 }
1983
1984 if (!dqm->ops.initialize(dqm))
1985 return dqm;
1986
1987out_free:
1988 kfree(dqm);
1989 return NULL;
1990}
1991
1992static void deallocate_hiq_sdma_mqd(struct kfd_dev *dev,
1993 struct kfd_mem_obj *mqd)
1994{
1995 WARN(!mqd, "No hiq sdma mqd trunk to free");
1996
1997 amdgpu_amdkfd_free_gtt_mem(dev->kgd, mqd->gtt_mem);
1998}
1999
2000void device_queue_manager_uninit(struct device_queue_manager *dqm)
2001{
2002 dqm->ops.uninitialize(dqm);
2003 deallocate_hiq_sdma_mqd(dqm->dev, &dqm->hiq_sdma_mqd);
2004 kfree(dqm);
2005}
2006
2007int kfd_process_vm_fault(struct device_queue_manager *dqm, u32 pasid)
2008{
2009 struct kfd_process_device *pdd;
2010 struct kfd_process *p = kfd_lookup_process_by_pasid(pasid);
2011 int ret = 0;
2012
2013 if (!p)
2014 return -EINVAL;
2015 WARN(debug_evictions, "Evicting pid %d", p->lead_thread->pid);
2016 pdd = kfd_get_process_device_data(dqm->dev, p);
2017 if (pdd)
2018 ret = dqm->ops.evict_process_queues(dqm, &pdd->qpd);
2019 kfd_unref_process(p);
2020
2021 return ret;
2022}
2023
2024static void kfd_process_hw_exception(struct work_struct *work)
2025{
2026 struct device_queue_manager *dqm = container_of(work,
2027 struct device_queue_manager, hw_exception_work);
2028 amdgpu_amdkfd_gpu_reset(dqm->dev->kgd);
2029}
2030
2031#if defined(CONFIG_DEBUG_FS)
2032
2033static void seq_reg_dump(struct seq_file *m,
2034 uint32_t (*dump)[2], uint32_t n_regs)
2035{
2036 uint32_t i, count;
2037
2038 for (i = 0, count = 0; i < n_regs; i++) {
2039 if (count == 0 ||
2040 dump[i-1][0] + sizeof(uint32_t) != dump[i][0]) {
2041 seq_printf(m, "%s %08x: %08x",
2042 i ? "\n" : "",
2043 dump[i][0], dump[i][1]);
2044 count = 7;
2045 } else {
2046 seq_printf(m, " %08x", dump[i][1]);
2047 count--;
2048 }
2049 }
2050
2051 seq_puts(m, "\n");
2052}
2053
2054int dqm_debugfs_hqds(struct seq_file *m, void *data)
2055{
2056 struct device_queue_manager *dqm = data;
2057 uint32_t (*dump)[2], n_regs;
2058 int pipe, queue;
2059 int r = 0;
2060
2061 if (!dqm->sched_running) {
2062 seq_printf(m, " Device is stopped\n");
2063
2064 return 0;
2065 }
2066
2067 r = dqm->dev->kfd2kgd->hqd_dump(dqm->dev->kgd,
2068 KFD_CIK_HIQ_PIPE, KFD_CIK_HIQ_QUEUE,
2069 &dump, &n_regs);
2070 if (!r) {
2071 seq_printf(m, " HIQ on MEC %d Pipe %d Queue %d\n",
2072 KFD_CIK_HIQ_PIPE/get_pipes_per_mec(dqm)+1,
2073 KFD_CIK_HIQ_PIPE%get_pipes_per_mec(dqm),
2074 KFD_CIK_HIQ_QUEUE);
2075 seq_reg_dump(m, dump, n_regs);
2076
2077 kfree(dump);
2078 }
2079
2080 for (pipe = 0; pipe < get_pipes_per_mec(dqm); pipe++) {
2081 int pipe_offset = pipe * get_queues_per_pipe(dqm);
2082
2083 for (queue = 0; queue < get_queues_per_pipe(dqm); queue++) {
2084 if (!test_bit(pipe_offset + queue,
2085 dqm->dev->shared_resources.cp_queue_bitmap))
2086 continue;
2087
2088 r = dqm->dev->kfd2kgd->hqd_dump(
2089 dqm->dev->kgd, pipe, queue, &dump, &n_regs);
2090 if (r)
2091 break;
2092
2093 seq_printf(m, " CP Pipe %d, Queue %d\n",
2094 pipe, queue);
2095 seq_reg_dump(m, dump, n_regs);
2096
2097 kfree(dump);
2098 }
2099 }
2100
2101 for (pipe = 0; pipe < get_num_all_sdma_engines(dqm); pipe++) {
2102 for (queue = 0;
2103 queue < dqm->dev->device_info->num_sdma_queues_per_engine;
2104 queue++) {
2105 r = dqm->dev->kfd2kgd->hqd_sdma_dump(
2106 dqm->dev->kgd, pipe, queue, &dump, &n_regs);
2107 if (r)
2108 break;
2109
2110 seq_printf(m, " SDMA Engine %d, RLC %d\n",
2111 pipe, queue);
2112 seq_reg_dump(m, dump, n_regs);
2113
2114 kfree(dump);
2115 }
2116 }
2117
2118 return r;
2119}
2120
2121int dqm_debugfs_hang_hws(struct device_queue_manager *dqm)
2122{
2123 int r = 0;
2124
2125 dqm_lock(dqm);
2126 r = pm_debugfs_hang_hws(&dqm->packet_mgr);
2127 if (r) {
2128 dqm_unlock(dqm);
2129 return r;
2130 }
2131 dqm->active_runlist = true;
2132 r = execute_queues_cpsch(dqm, KFD_UNMAP_QUEUES_FILTER_ALL_QUEUES, 0);
2133 dqm_unlock(dqm);
2134
2135 return r;
2136}
2137
2138#endif
2139