1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24#include <linux/slab.h>
25#include <linux/mutex.h>
26#include "kfd_device_queue_manager.h"
27#include "kfd_kernel_queue.h"
28#include "kfd_priv.h"
29
30static inline void inc_wptr(unsigned int *wptr, unsigned int increment_bytes,
31 unsigned int buffer_size_bytes)
32{
33 unsigned int temp = *wptr + increment_bytes / sizeof(uint32_t);
34
35 WARN((temp * sizeof(uint32_t)) > buffer_size_bytes,
36 "Runlist IB overflow");
37 *wptr = temp;
38}
39
40static void pm_calc_rlib_size(struct packet_manager *pm,
41 unsigned int *rlib_size,
42 bool *over_subscription)
43{
44 unsigned int process_count, queue_count, compute_queue_count, gws_queue_count;
45 unsigned int map_queue_size;
46 unsigned int max_proc_per_quantum = 1;
47 struct kfd_dev *dev = pm->dqm->dev;
48
49 process_count = pm->dqm->processes_count;
50 queue_count = pm->dqm->active_queue_count;
51 compute_queue_count = pm->dqm->active_cp_queue_count;
52 gws_queue_count = pm->dqm->gws_queue_count;
53
54
55
56
57
58
59 *over_subscription = false;
60
61 if (dev->max_proc_per_quantum > 1)
62 max_proc_per_quantum = dev->max_proc_per_quantum;
63
64 if ((process_count > max_proc_per_quantum) ||
65 compute_queue_count > get_cp_queues_num(pm->dqm) ||
66 gws_queue_count > 1) {
67 *over_subscription = true;
68 pr_debug("Over subscribed runlist\n");
69 }
70
71 map_queue_size = pm->pmf->map_queues_size;
72
73 *rlib_size = process_count * pm->pmf->map_process_size +
74 queue_count * map_queue_size;
75
76
77
78
79
80 if (*over_subscription)
81 *rlib_size += pm->pmf->runlist_size;
82
83 pr_debug("runlist ib size %d\n", *rlib_size);
84}
85
86static int pm_allocate_runlist_ib(struct packet_manager *pm,
87 unsigned int **rl_buffer,
88 uint64_t *rl_gpu_buffer,
89 unsigned int *rl_buffer_size,
90 bool *is_over_subscription)
91{
92 int retval;
93
94 if (WARN_ON(pm->allocated))
95 return -EINVAL;
96
97 pm_calc_rlib_size(pm, rl_buffer_size, is_over_subscription);
98
99 mutex_lock(&pm->lock);
100
101 retval = kfd_gtt_sa_allocate(pm->dqm->dev, *rl_buffer_size,
102 &pm->ib_buffer_obj);
103
104 if (retval) {
105 pr_err("Failed to allocate runlist IB\n");
106 goto out;
107 }
108
109 *(void **)rl_buffer = pm->ib_buffer_obj->cpu_ptr;
110 *rl_gpu_buffer = pm->ib_buffer_obj->gpu_addr;
111
112 memset(*rl_buffer, 0, *rl_buffer_size);
113 pm->allocated = true;
114
115out:
116 mutex_unlock(&pm->lock);
117 return retval;
118}
119
120static int pm_create_runlist_ib(struct packet_manager *pm,
121 struct list_head *queues,
122 uint64_t *rl_gpu_addr,
123 size_t *rl_size_bytes)
124{
125 unsigned int alloc_size_bytes;
126 unsigned int *rl_buffer, rl_wptr, i;
127 int retval, processes_mapped;
128 struct device_process_node *cur;
129 struct qcm_process_device *qpd;
130 struct queue *q;
131 struct kernel_queue *kq;
132 bool is_over_subscription;
133
134 rl_wptr = retval = processes_mapped = 0;
135
136 retval = pm_allocate_runlist_ib(pm, &rl_buffer, rl_gpu_addr,
137 &alloc_size_bytes, &is_over_subscription);
138 if (retval)
139 return retval;
140
141 *rl_size_bytes = alloc_size_bytes;
142 pm->ib_size_bytes = alloc_size_bytes;
143
144 pr_debug("Building runlist ib process count: %d queues count %d\n",
145 pm->dqm->processes_count, pm->dqm->active_queue_count);
146
147
148 list_for_each_entry(cur, queues, list) {
149 qpd = cur->qpd;
150
151 if (processes_mapped >= pm->dqm->processes_count) {
152 pr_debug("Not enough space left in runlist IB\n");
153 pm_release_ib(pm);
154 return -ENOMEM;
155 }
156
157 retval = pm->pmf->map_process(pm, &rl_buffer[rl_wptr], qpd);
158 if (retval)
159 return retval;
160
161 processes_mapped++;
162 inc_wptr(&rl_wptr, pm->pmf->map_process_size,
163 alloc_size_bytes);
164
165 list_for_each_entry(kq, &qpd->priv_queue_list, list) {
166 if (!kq->queue->properties.is_active)
167 continue;
168
169 pr_debug("static_queue, mapping kernel q %d, is debug status %d\n",
170 kq->queue->queue, qpd->is_debug);
171
172 retval = pm->pmf->map_queues(pm,
173 &rl_buffer[rl_wptr],
174 kq->queue,
175 qpd->is_debug);
176 if (retval)
177 return retval;
178
179 inc_wptr(&rl_wptr,
180 pm->pmf->map_queues_size,
181 alloc_size_bytes);
182 }
183
184 list_for_each_entry(q, &qpd->queues_list, list) {
185 if (!q->properties.is_active)
186 continue;
187
188 pr_debug("static_queue, mapping user queue %d, is debug status %d\n",
189 q->queue, qpd->is_debug);
190
191 retval = pm->pmf->map_queues(pm,
192 &rl_buffer[rl_wptr],
193 q,
194 qpd->is_debug);
195
196 if (retval)
197 return retval;
198
199 inc_wptr(&rl_wptr,
200 pm->pmf->map_queues_size,
201 alloc_size_bytes);
202 }
203 }
204
205 pr_debug("Finished map process and queues to runlist\n");
206
207 if (is_over_subscription) {
208 if (!pm->is_over_subscription)
209 pr_warn("Runlist is getting oversubscribed. Expect reduced ROCm performance.\n");
210 retval = pm->pmf->runlist(pm, &rl_buffer[rl_wptr],
211 *rl_gpu_addr,
212 alloc_size_bytes / sizeof(uint32_t),
213 true);
214 }
215 pm->is_over_subscription = is_over_subscription;
216
217 for (i = 0; i < alloc_size_bytes / sizeof(uint32_t); i++)
218 pr_debug("0x%2X ", rl_buffer[i]);
219 pr_debug("\n");
220
221 return retval;
222}
223
224int pm_init(struct packet_manager *pm, struct device_queue_manager *dqm)
225{
226 switch (dqm->dev->device_info->asic_family) {
227 case CHIP_KAVERI:
228 case CHIP_HAWAII:
229
230 case CHIP_CARRIZO:
231 case CHIP_TONGA:
232 case CHIP_FIJI:
233 case CHIP_POLARIS10:
234 case CHIP_POLARIS11:
235 case CHIP_POLARIS12:
236 case CHIP_VEGAM:
237 pm->pmf = &kfd_vi_pm_funcs;
238 break;
239 case CHIP_VEGA10:
240 case CHIP_VEGA12:
241 case CHIP_VEGA20:
242 case CHIP_RAVEN:
243 case CHIP_RENOIR:
244 case CHIP_ARCTURUS:
245 case CHIP_NAVI10:
246 case CHIP_NAVI12:
247 case CHIP_NAVI14:
248 case CHIP_SIENNA_CICHLID:
249 case CHIP_NAVY_FLOUNDER:
250 case CHIP_VANGOGH:
251 case CHIP_DIMGREY_CAVEFISH:
252 case CHIP_BEIGE_GOBY:
253 case CHIP_YELLOW_CARP:
254 pm->pmf = &kfd_v9_pm_funcs;
255 break;
256 case CHIP_ALDEBARAN:
257 pm->pmf = &kfd_aldebaran_pm_funcs;
258 break;
259 default:
260 WARN(1, "Unexpected ASIC family %u",
261 dqm->dev->device_info->asic_family);
262 return -EINVAL;
263 }
264
265 pm->dqm = dqm;
266 mutex_init(&pm->lock);
267 pm->priv_queue = kernel_queue_init(dqm->dev, KFD_QUEUE_TYPE_HIQ);
268 if (!pm->priv_queue) {
269 mutex_destroy(&pm->lock);
270 return -ENOMEM;
271 }
272 pm->allocated = false;
273
274 return 0;
275}
276
277void pm_uninit(struct packet_manager *pm, bool hanging)
278{
279 mutex_destroy(&pm->lock);
280 kernel_queue_uninit(pm->priv_queue, hanging);
281}
282
283int pm_send_set_resources(struct packet_manager *pm,
284 struct scheduling_resources *res)
285{
286 uint32_t *buffer, size;
287 int retval = 0;
288
289 size = pm->pmf->set_resources_size;
290 mutex_lock(&pm->lock);
291 kq_acquire_packet_buffer(pm->priv_queue,
292 size / sizeof(uint32_t),
293 (unsigned int **)&buffer);
294 if (!buffer) {
295 pr_err("Failed to allocate buffer on kernel queue\n");
296 retval = -ENOMEM;
297 goto out;
298 }
299
300 retval = pm->pmf->set_resources(pm, buffer, res);
301 if (!retval)
302 kq_submit_packet(pm->priv_queue);
303 else
304 kq_rollback_packet(pm->priv_queue);
305
306out:
307 mutex_unlock(&pm->lock);
308
309 return retval;
310}
311
312int pm_send_runlist(struct packet_manager *pm, struct list_head *dqm_queues)
313{
314 uint64_t rl_gpu_ib_addr;
315 uint32_t *rl_buffer;
316 size_t rl_ib_size, packet_size_dwords;
317 int retval;
318
319 retval = pm_create_runlist_ib(pm, dqm_queues, &rl_gpu_ib_addr,
320 &rl_ib_size);
321 if (retval)
322 goto fail_create_runlist_ib;
323
324 pr_debug("runlist IB address: 0x%llX\n", rl_gpu_ib_addr);
325
326 packet_size_dwords = pm->pmf->runlist_size / sizeof(uint32_t);
327 mutex_lock(&pm->lock);
328
329 retval = kq_acquire_packet_buffer(pm->priv_queue,
330 packet_size_dwords, &rl_buffer);
331 if (retval)
332 goto fail_acquire_packet_buffer;
333
334 retval = pm->pmf->runlist(pm, rl_buffer, rl_gpu_ib_addr,
335 rl_ib_size / sizeof(uint32_t), false);
336 if (retval)
337 goto fail_create_runlist;
338
339 kq_submit_packet(pm->priv_queue);
340
341 mutex_unlock(&pm->lock);
342
343 return retval;
344
345fail_create_runlist:
346 kq_rollback_packet(pm->priv_queue);
347fail_acquire_packet_buffer:
348 mutex_unlock(&pm->lock);
349fail_create_runlist_ib:
350 pm_release_ib(pm);
351 return retval;
352}
353
354int pm_send_query_status(struct packet_manager *pm, uint64_t fence_address,
355 uint64_t fence_value)
356{
357 uint32_t *buffer, size;
358 int retval = 0;
359
360 if (WARN_ON(!fence_address))
361 return -EFAULT;
362
363 size = pm->pmf->query_status_size;
364 mutex_lock(&pm->lock);
365 kq_acquire_packet_buffer(pm->priv_queue,
366 size / sizeof(uint32_t), (unsigned int **)&buffer);
367 if (!buffer) {
368 pr_err("Failed to allocate buffer on kernel queue\n");
369 retval = -ENOMEM;
370 goto out;
371 }
372
373 retval = pm->pmf->query_status(pm, buffer, fence_address, fence_value);
374 if (!retval)
375 kq_submit_packet(pm->priv_queue);
376 else
377 kq_rollback_packet(pm->priv_queue);
378
379out:
380 mutex_unlock(&pm->lock);
381 return retval;
382}
383
384int pm_send_unmap_queue(struct packet_manager *pm, enum kfd_queue_type type,
385 enum kfd_unmap_queues_filter filter,
386 uint32_t filter_param, bool reset,
387 unsigned int sdma_engine)
388{
389 uint32_t *buffer, size;
390 int retval = 0;
391
392 size = pm->pmf->unmap_queues_size;
393 mutex_lock(&pm->lock);
394 kq_acquire_packet_buffer(pm->priv_queue,
395 size / sizeof(uint32_t), (unsigned int **)&buffer);
396 if (!buffer) {
397 pr_err("Failed to allocate buffer on kernel queue\n");
398 retval = -ENOMEM;
399 goto out;
400 }
401
402 retval = pm->pmf->unmap_queues(pm, buffer, type, filter, filter_param,
403 reset, sdma_engine);
404 if (!retval)
405 kq_submit_packet(pm->priv_queue);
406 else
407 kq_rollback_packet(pm->priv_queue);
408
409out:
410 mutex_unlock(&pm->lock);
411 return retval;
412}
413
414void pm_release_ib(struct packet_manager *pm)
415{
416 mutex_lock(&pm->lock);
417 if (pm->allocated) {
418 kfd_gtt_sa_free(pm->dqm->dev, pm->ib_buffer_obj);
419 pm->allocated = false;
420 }
421 mutex_unlock(&pm->lock);
422}
423
424#if defined(CONFIG_DEBUG_FS)
425
426int pm_debugfs_runlist(struct seq_file *m, void *data)
427{
428 struct packet_manager *pm = data;
429
430 mutex_lock(&pm->lock);
431
432 if (!pm->allocated) {
433 seq_puts(m, " No active runlist\n");
434 goto out;
435 }
436
437 seq_hex_dump(m, " ", DUMP_PREFIX_OFFSET, 32, 4,
438 pm->ib_buffer_obj->cpu_ptr, pm->ib_size_bytes, false);
439
440out:
441 mutex_unlock(&pm->lock);
442 return 0;
443}
444
445int pm_debugfs_hang_hws(struct packet_manager *pm)
446{
447 uint32_t *buffer, size;
448 int r = 0;
449
450 size = pm->pmf->query_status_size;
451 mutex_lock(&pm->lock);
452 kq_acquire_packet_buffer(pm->priv_queue,
453 size / sizeof(uint32_t), (unsigned int **)&buffer);
454 if (!buffer) {
455 pr_err("Failed to allocate buffer on kernel queue\n");
456 r = -ENOMEM;
457 goto out;
458 }
459 memset(buffer, 0x55, size);
460 kq_submit_packet(pm->priv_queue);
461
462 pr_info("Submitting %x %x %x %x %x %x %x to HIQ to hang the HWS.",
463 buffer[0], buffer[1], buffer[2], buffer[3],
464 buffer[4], buffer[5], buffer[6]);
465out:
466 mutex_unlock(&pm->lock);
467 return r;
468}
469
470
471#endif
472
