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23#include <linux/bsearch.h>
24#include <linux/pci.h>
25#include <linux/slab.h>
26#include "kfd_priv.h"
27#include "kfd_device_queue_manager.h"
28#include "kfd_pm4_headers_vi.h"
29#include "kfd_pm4_headers_aldebaran.h"
30#include "cwsr_trap_handler.h"
31#include "kfd_iommu.h"
32#include "amdgpu_amdkfd.h"
33#include "kfd_smi_events.h"
34#include "kfd_migrate.h"
35
36#define MQD_SIZE_ALIGNED 768
37
38
39
40
41
42
43static atomic_t kfd_locked = ATOMIC_INIT(0);
44
45#ifdef CONFIG_DRM_AMDGPU_CIK
46extern const struct kfd2kgd_calls gfx_v7_kfd2kgd;
47#endif
48extern const struct kfd2kgd_calls gfx_v8_kfd2kgd;
49extern const struct kfd2kgd_calls gfx_v9_kfd2kgd;
50extern const struct kfd2kgd_calls arcturus_kfd2kgd;
51extern const struct kfd2kgd_calls aldebaran_kfd2kgd;
52extern const struct kfd2kgd_calls gfx_v10_kfd2kgd;
53extern const struct kfd2kgd_calls gfx_v10_3_kfd2kgd;
54
55static const struct kfd2kgd_calls *kfd2kgd_funcs[] = {
56#ifdef KFD_SUPPORT_IOMMU_V2
57#ifdef CONFIG_DRM_AMDGPU_CIK
58 [CHIP_KAVERI] = &gfx_v7_kfd2kgd,
59#endif
60 [CHIP_CARRIZO] = &gfx_v8_kfd2kgd,
61 [CHIP_RAVEN] = &gfx_v9_kfd2kgd,
62#endif
63#ifdef CONFIG_DRM_AMDGPU_CIK
64 [CHIP_HAWAII] = &gfx_v7_kfd2kgd,
65#endif
66 [CHIP_TONGA] = &gfx_v8_kfd2kgd,
67 [CHIP_FIJI] = &gfx_v8_kfd2kgd,
68 [CHIP_POLARIS10] = &gfx_v8_kfd2kgd,
69 [CHIP_POLARIS11] = &gfx_v8_kfd2kgd,
70 [CHIP_POLARIS12] = &gfx_v8_kfd2kgd,
71 [CHIP_VEGAM] = &gfx_v8_kfd2kgd,
72 [CHIP_VEGA10] = &gfx_v9_kfd2kgd,
73 [CHIP_VEGA12] = &gfx_v9_kfd2kgd,
74 [CHIP_VEGA20] = &gfx_v9_kfd2kgd,
75 [CHIP_RENOIR] = &gfx_v9_kfd2kgd,
76 [CHIP_ARCTURUS] = &arcturus_kfd2kgd,
77 [CHIP_ALDEBARAN] = &aldebaran_kfd2kgd,
78 [CHIP_NAVI10] = &gfx_v10_kfd2kgd,
79 [CHIP_NAVI12] = &gfx_v10_kfd2kgd,
80 [CHIP_NAVI14] = &gfx_v10_kfd2kgd,
81 [CHIP_SIENNA_CICHLID] = &gfx_v10_3_kfd2kgd,
82 [CHIP_NAVY_FLOUNDER] = &gfx_v10_3_kfd2kgd,
83 [CHIP_VANGOGH] = &gfx_v10_3_kfd2kgd,
84 [CHIP_DIMGREY_CAVEFISH] = &gfx_v10_3_kfd2kgd,
85 [CHIP_BEIGE_GOBY] = &gfx_v10_3_kfd2kgd,
86 [CHIP_YELLOW_CARP] = &gfx_v10_3_kfd2kgd,
87 [CHIP_CYAN_SKILLFISH] = &gfx_v10_kfd2kgd,
88};
89
90#ifdef KFD_SUPPORT_IOMMU_V2
91static const struct kfd_device_info kaveri_device_info = {
92 .asic_family = CHIP_KAVERI,
93 .asic_name = "kaveri",
94 .gfx_target_version = 70000,
95 .max_pasid_bits = 16,
96
97 .max_no_of_hqd = 24,
98 .doorbell_size = 4,
99 .ih_ring_entry_size = 4 * sizeof(uint32_t),
100 .event_interrupt_class = &event_interrupt_class_cik,
101 .num_of_watch_points = 4,
102 .mqd_size_aligned = MQD_SIZE_ALIGNED,
103 .supports_cwsr = false,
104 .needs_iommu_device = true,
105 .needs_pci_atomics = false,
106 .num_sdma_engines = 2,
107 .num_xgmi_sdma_engines = 0,
108 .num_sdma_queues_per_engine = 2,
109};
110
111static const struct kfd_device_info carrizo_device_info = {
112 .asic_family = CHIP_CARRIZO,
113 .asic_name = "carrizo",
114 .gfx_target_version = 80001,
115 .max_pasid_bits = 16,
116
117 .max_no_of_hqd = 24,
118 .doorbell_size = 4,
119 .ih_ring_entry_size = 4 * sizeof(uint32_t),
120 .event_interrupt_class = &event_interrupt_class_cik,
121 .num_of_watch_points = 4,
122 .mqd_size_aligned = MQD_SIZE_ALIGNED,
123 .supports_cwsr = true,
124 .needs_iommu_device = true,
125 .needs_pci_atomics = false,
126 .num_sdma_engines = 2,
127 .num_xgmi_sdma_engines = 0,
128 .num_sdma_queues_per_engine = 2,
129};
130#endif
131
132static const struct kfd_device_info raven_device_info = {
133 .asic_family = CHIP_RAVEN,
134 .asic_name = "raven",
135 .gfx_target_version = 90002,
136 .max_pasid_bits = 16,
137 .max_no_of_hqd = 24,
138 .doorbell_size = 8,
139 .ih_ring_entry_size = 8 * sizeof(uint32_t),
140 .event_interrupt_class = &event_interrupt_class_v9,
141 .num_of_watch_points = 4,
142 .mqd_size_aligned = MQD_SIZE_ALIGNED,
143 .supports_cwsr = true,
144 .needs_iommu_device = true,
145 .needs_pci_atomics = true,
146 .num_sdma_engines = 1,
147 .num_xgmi_sdma_engines = 0,
148 .num_sdma_queues_per_engine = 2,
149};
150
151static const struct kfd_device_info hawaii_device_info = {
152 .asic_family = CHIP_HAWAII,
153 .asic_name = "hawaii",
154 .gfx_target_version = 70001,
155 .max_pasid_bits = 16,
156
157 .max_no_of_hqd = 24,
158 .doorbell_size = 4,
159 .ih_ring_entry_size = 4 * sizeof(uint32_t),
160 .event_interrupt_class = &event_interrupt_class_cik,
161 .num_of_watch_points = 4,
162 .mqd_size_aligned = MQD_SIZE_ALIGNED,
163 .supports_cwsr = false,
164 .needs_iommu_device = false,
165 .needs_pci_atomics = false,
166 .num_sdma_engines = 2,
167 .num_xgmi_sdma_engines = 0,
168 .num_sdma_queues_per_engine = 2,
169};
170
171static const struct kfd_device_info tonga_device_info = {
172 .asic_family = CHIP_TONGA,
173 .asic_name = "tonga",
174 .gfx_target_version = 80002,
175 .max_pasid_bits = 16,
176 .max_no_of_hqd = 24,
177 .doorbell_size = 4,
178 .ih_ring_entry_size = 4 * sizeof(uint32_t),
179 .event_interrupt_class = &event_interrupt_class_cik,
180 .num_of_watch_points = 4,
181 .mqd_size_aligned = MQD_SIZE_ALIGNED,
182 .supports_cwsr = false,
183 .needs_iommu_device = false,
184 .needs_pci_atomics = true,
185 .num_sdma_engines = 2,
186 .num_xgmi_sdma_engines = 0,
187 .num_sdma_queues_per_engine = 2,
188};
189
190static const struct kfd_device_info fiji_device_info = {
191 .asic_family = CHIP_FIJI,
192 .asic_name = "fiji",
193 .gfx_target_version = 80003,
194 .max_pasid_bits = 16,
195 .max_no_of_hqd = 24,
196 .doorbell_size = 4,
197 .ih_ring_entry_size = 4 * sizeof(uint32_t),
198 .event_interrupt_class = &event_interrupt_class_cik,
199 .num_of_watch_points = 4,
200 .mqd_size_aligned = MQD_SIZE_ALIGNED,
201 .supports_cwsr = true,
202 .needs_iommu_device = false,
203 .needs_pci_atomics = true,
204 .num_sdma_engines = 2,
205 .num_xgmi_sdma_engines = 0,
206 .num_sdma_queues_per_engine = 2,
207};
208
209static const struct kfd_device_info fiji_vf_device_info = {
210 .asic_family = CHIP_FIJI,
211 .asic_name = "fiji",
212 .gfx_target_version = 80003,
213 .max_pasid_bits = 16,
214 .max_no_of_hqd = 24,
215 .doorbell_size = 4,
216 .ih_ring_entry_size = 4 * sizeof(uint32_t),
217 .event_interrupt_class = &event_interrupt_class_cik,
218 .num_of_watch_points = 4,
219 .mqd_size_aligned = MQD_SIZE_ALIGNED,
220 .supports_cwsr = true,
221 .needs_iommu_device = false,
222 .needs_pci_atomics = false,
223 .num_sdma_engines = 2,
224 .num_xgmi_sdma_engines = 0,
225 .num_sdma_queues_per_engine = 2,
226};
227
228
229static const struct kfd_device_info polaris10_device_info = {
230 .asic_family = CHIP_POLARIS10,
231 .asic_name = "polaris10",
232 .gfx_target_version = 80003,
233 .max_pasid_bits = 16,
234 .max_no_of_hqd = 24,
235 .doorbell_size = 4,
236 .ih_ring_entry_size = 4 * sizeof(uint32_t),
237 .event_interrupt_class = &event_interrupt_class_cik,
238 .num_of_watch_points = 4,
239 .mqd_size_aligned = MQD_SIZE_ALIGNED,
240 .supports_cwsr = true,
241 .needs_iommu_device = false,
242 .needs_pci_atomics = true,
243 .num_sdma_engines = 2,
244 .num_xgmi_sdma_engines = 0,
245 .num_sdma_queues_per_engine = 2,
246};
247
248static const struct kfd_device_info polaris10_vf_device_info = {
249 .asic_family = CHIP_POLARIS10,
250 .asic_name = "polaris10",
251 .gfx_target_version = 80003,
252 .max_pasid_bits = 16,
253 .max_no_of_hqd = 24,
254 .doorbell_size = 4,
255 .ih_ring_entry_size = 4 * sizeof(uint32_t),
256 .event_interrupt_class = &event_interrupt_class_cik,
257 .num_of_watch_points = 4,
258 .mqd_size_aligned = MQD_SIZE_ALIGNED,
259 .supports_cwsr = true,
260 .needs_iommu_device = false,
261 .needs_pci_atomics = false,
262 .num_sdma_engines = 2,
263 .num_xgmi_sdma_engines = 0,
264 .num_sdma_queues_per_engine = 2,
265};
266
267static const struct kfd_device_info polaris11_device_info = {
268 .asic_family = CHIP_POLARIS11,
269 .asic_name = "polaris11",
270 .gfx_target_version = 80003,
271 .max_pasid_bits = 16,
272 .max_no_of_hqd = 24,
273 .doorbell_size = 4,
274 .ih_ring_entry_size = 4 * sizeof(uint32_t),
275 .event_interrupt_class = &event_interrupt_class_cik,
276 .num_of_watch_points = 4,
277 .mqd_size_aligned = MQD_SIZE_ALIGNED,
278 .supports_cwsr = true,
279 .needs_iommu_device = false,
280 .needs_pci_atomics = true,
281 .num_sdma_engines = 2,
282 .num_xgmi_sdma_engines = 0,
283 .num_sdma_queues_per_engine = 2,
284};
285
286static const struct kfd_device_info polaris12_device_info = {
287 .asic_family = CHIP_POLARIS12,
288 .asic_name = "polaris12",
289 .gfx_target_version = 80003,
290 .max_pasid_bits = 16,
291 .max_no_of_hqd = 24,
292 .doorbell_size = 4,
293 .ih_ring_entry_size = 4 * sizeof(uint32_t),
294 .event_interrupt_class = &event_interrupt_class_cik,
295 .num_of_watch_points = 4,
296 .mqd_size_aligned = MQD_SIZE_ALIGNED,
297 .supports_cwsr = true,
298 .needs_iommu_device = false,
299 .needs_pci_atomics = true,
300 .num_sdma_engines = 2,
301 .num_xgmi_sdma_engines = 0,
302 .num_sdma_queues_per_engine = 2,
303};
304
305static const struct kfd_device_info vegam_device_info = {
306 .asic_family = CHIP_VEGAM,
307 .asic_name = "vegam",
308 .gfx_target_version = 80003,
309 .max_pasid_bits = 16,
310 .max_no_of_hqd = 24,
311 .doorbell_size = 4,
312 .ih_ring_entry_size = 4 * sizeof(uint32_t),
313 .event_interrupt_class = &event_interrupt_class_cik,
314 .num_of_watch_points = 4,
315 .mqd_size_aligned = MQD_SIZE_ALIGNED,
316 .supports_cwsr = true,
317 .needs_iommu_device = false,
318 .needs_pci_atomics = true,
319 .num_sdma_engines = 2,
320 .num_xgmi_sdma_engines = 0,
321 .num_sdma_queues_per_engine = 2,
322};
323
324static const struct kfd_device_info vega10_device_info = {
325 .asic_family = CHIP_VEGA10,
326 .asic_name = "vega10",
327 .gfx_target_version = 90000,
328 .max_pasid_bits = 16,
329 .max_no_of_hqd = 24,
330 .doorbell_size = 8,
331 .ih_ring_entry_size = 8 * sizeof(uint32_t),
332 .event_interrupt_class = &event_interrupt_class_v9,
333 .num_of_watch_points = 4,
334 .mqd_size_aligned = MQD_SIZE_ALIGNED,
335 .supports_cwsr = true,
336 .needs_iommu_device = false,
337 .needs_pci_atomics = false,
338 .num_sdma_engines = 2,
339 .num_xgmi_sdma_engines = 0,
340 .num_sdma_queues_per_engine = 2,
341};
342
343static const struct kfd_device_info vega10_vf_device_info = {
344 .asic_family = CHIP_VEGA10,
345 .asic_name = "vega10",
346 .gfx_target_version = 90000,
347 .max_pasid_bits = 16,
348 .max_no_of_hqd = 24,
349 .doorbell_size = 8,
350 .ih_ring_entry_size = 8 * sizeof(uint32_t),
351 .event_interrupt_class = &event_interrupt_class_v9,
352 .num_of_watch_points = 4,
353 .mqd_size_aligned = MQD_SIZE_ALIGNED,
354 .supports_cwsr = true,
355 .needs_iommu_device = false,
356 .needs_pci_atomics = false,
357 .num_sdma_engines = 2,
358 .num_xgmi_sdma_engines = 0,
359 .num_sdma_queues_per_engine = 2,
360};
361
362static const struct kfd_device_info vega12_device_info = {
363 .asic_family = CHIP_VEGA12,
364 .asic_name = "vega12",
365 .gfx_target_version = 90004,
366 .max_pasid_bits = 16,
367 .max_no_of_hqd = 24,
368 .doorbell_size = 8,
369 .ih_ring_entry_size = 8 * sizeof(uint32_t),
370 .event_interrupt_class = &event_interrupt_class_v9,
371 .num_of_watch_points = 4,
372 .mqd_size_aligned = MQD_SIZE_ALIGNED,
373 .supports_cwsr = true,
374 .needs_iommu_device = false,
375 .needs_pci_atomics = false,
376 .num_sdma_engines = 2,
377 .num_xgmi_sdma_engines = 0,
378 .num_sdma_queues_per_engine = 2,
379};
380
381static const struct kfd_device_info vega20_device_info = {
382 .asic_family = CHIP_VEGA20,
383 .asic_name = "vega20",
384 .gfx_target_version = 90006,
385 .max_pasid_bits = 16,
386 .max_no_of_hqd = 24,
387 .doorbell_size = 8,
388 .ih_ring_entry_size = 8 * sizeof(uint32_t),
389 .event_interrupt_class = &event_interrupt_class_v9,
390 .num_of_watch_points = 4,
391 .mqd_size_aligned = MQD_SIZE_ALIGNED,
392 .supports_cwsr = true,
393 .needs_iommu_device = false,
394 .needs_pci_atomics = false,
395 .num_sdma_engines = 2,
396 .num_xgmi_sdma_engines = 0,
397 .num_sdma_queues_per_engine = 8,
398};
399
400static const struct kfd_device_info arcturus_device_info = {
401 .asic_family = CHIP_ARCTURUS,
402 .asic_name = "arcturus",
403 .gfx_target_version = 90008,
404 .max_pasid_bits = 16,
405 .max_no_of_hqd = 24,
406 .doorbell_size = 8,
407 .ih_ring_entry_size = 8 * sizeof(uint32_t),
408 .event_interrupt_class = &event_interrupt_class_v9,
409 .num_of_watch_points = 4,
410 .mqd_size_aligned = MQD_SIZE_ALIGNED,
411 .supports_cwsr = true,
412 .needs_iommu_device = false,
413 .needs_pci_atomics = false,
414 .num_sdma_engines = 2,
415 .num_xgmi_sdma_engines = 6,
416 .num_sdma_queues_per_engine = 8,
417};
418
419static const struct kfd_device_info aldebaran_device_info = {
420 .asic_family = CHIP_ALDEBARAN,
421 .asic_name = "aldebaran",
422 .gfx_target_version = 90010,
423 .max_pasid_bits = 16,
424 .max_no_of_hqd = 24,
425 .doorbell_size = 8,
426 .ih_ring_entry_size = 8 * sizeof(uint32_t),
427 .event_interrupt_class = &event_interrupt_class_v9,
428 .num_of_watch_points = 4,
429 .mqd_size_aligned = MQD_SIZE_ALIGNED,
430 .supports_cwsr = true,
431 .needs_iommu_device = false,
432 .needs_pci_atomics = false,
433 .num_sdma_engines = 2,
434 .num_xgmi_sdma_engines = 3,
435 .num_sdma_queues_per_engine = 8,
436};
437
438static const struct kfd_device_info renoir_device_info = {
439 .asic_family = CHIP_RENOIR,
440 .asic_name = "renoir",
441 .gfx_target_version = 90002,
442 .max_pasid_bits = 16,
443 .max_no_of_hqd = 24,
444 .doorbell_size = 8,
445 .ih_ring_entry_size = 8 * sizeof(uint32_t),
446 .event_interrupt_class = &event_interrupt_class_v9,
447 .num_of_watch_points = 4,
448 .mqd_size_aligned = MQD_SIZE_ALIGNED,
449 .supports_cwsr = true,
450 .needs_iommu_device = false,
451 .needs_pci_atomics = false,
452 .num_sdma_engines = 1,
453 .num_xgmi_sdma_engines = 0,
454 .num_sdma_queues_per_engine = 2,
455};
456
457static const struct kfd_device_info navi10_device_info = {
458 .asic_family = CHIP_NAVI10,
459 .asic_name = "navi10",
460 .gfx_target_version = 100100,
461 .max_pasid_bits = 16,
462 .max_no_of_hqd = 24,
463 .doorbell_size = 8,
464 .ih_ring_entry_size = 8 * sizeof(uint32_t),
465 .event_interrupt_class = &event_interrupt_class_v9,
466 .num_of_watch_points = 4,
467 .mqd_size_aligned = MQD_SIZE_ALIGNED,
468 .needs_iommu_device = false,
469 .supports_cwsr = true,
470 .needs_pci_atomics = true,
471 .no_atomic_fw_version = 145,
472 .num_sdma_engines = 2,
473 .num_xgmi_sdma_engines = 0,
474 .num_sdma_queues_per_engine = 8,
475};
476
477static const struct kfd_device_info navi12_device_info = {
478 .asic_family = CHIP_NAVI12,
479 .asic_name = "navi12",
480 .gfx_target_version = 100101,
481 .max_pasid_bits = 16,
482 .max_no_of_hqd = 24,
483 .doorbell_size = 8,
484 .ih_ring_entry_size = 8 * sizeof(uint32_t),
485 .event_interrupt_class = &event_interrupt_class_v9,
486 .num_of_watch_points = 4,
487 .mqd_size_aligned = MQD_SIZE_ALIGNED,
488 .needs_iommu_device = false,
489 .supports_cwsr = true,
490 .needs_pci_atomics = true,
491 .no_atomic_fw_version = 145,
492 .num_sdma_engines = 2,
493 .num_xgmi_sdma_engines = 0,
494 .num_sdma_queues_per_engine = 8,
495};
496
497static const struct kfd_device_info navi14_device_info = {
498 .asic_family = CHIP_NAVI14,
499 .asic_name = "navi14",
500 .gfx_target_version = 100102,
501 .max_pasid_bits = 16,
502 .max_no_of_hqd = 24,
503 .doorbell_size = 8,
504 .ih_ring_entry_size = 8 * sizeof(uint32_t),
505 .event_interrupt_class = &event_interrupt_class_v9,
506 .num_of_watch_points = 4,
507 .mqd_size_aligned = MQD_SIZE_ALIGNED,
508 .needs_iommu_device = false,
509 .supports_cwsr = true,
510 .needs_pci_atomics = true,
511 .no_atomic_fw_version = 145,
512 .num_sdma_engines = 2,
513 .num_xgmi_sdma_engines = 0,
514 .num_sdma_queues_per_engine = 8,
515};
516
517static const struct kfd_device_info sienna_cichlid_device_info = {
518 .asic_family = CHIP_SIENNA_CICHLID,
519 .asic_name = "sienna_cichlid",
520 .gfx_target_version = 100300,
521 .max_pasid_bits = 16,
522 .max_no_of_hqd = 24,
523 .doorbell_size = 8,
524 .ih_ring_entry_size = 8 * sizeof(uint32_t),
525 .event_interrupt_class = &event_interrupt_class_v9,
526 .num_of_watch_points = 4,
527 .mqd_size_aligned = MQD_SIZE_ALIGNED,
528 .needs_iommu_device = false,
529 .supports_cwsr = true,
530 .needs_pci_atomics = true,
531 .no_atomic_fw_version = 92,
532 .num_sdma_engines = 4,
533 .num_xgmi_sdma_engines = 0,
534 .num_sdma_queues_per_engine = 8,
535};
536
537static const struct kfd_device_info navy_flounder_device_info = {
538 .asic_family = CHIP_NAVY_FLOUNDER,
539 .asic_name = "navy_flounder",
540 .gfx_target_version = 100301,
541 .max_pasid_bits = 16,
542 .max_no_of_hqd = 24,
543 .doorbell_size = 8,
544 .ih_ring_entry_size = 8 * sizeof(uint32_t),
545 .event_interrupt_class = &event_interrupt_class_v9,
546 .num_of_watch_points = 4,
547 .mqd_size_aligned = MQD_SIZE_ALIGNED,
548 .needs_iommu_device = false,
549 .supports_cwsr = true,
550 .needs_pci_atomics = true,
551 .no_atomic_fw_version = 92,
552 .num_sdma_engines = 2,
553 .num_xgmi_sdma_engines = 0,
554 .num_sdma_queues_per_engine = 8,
555};
556
557static const struct kfd_device_info vangogh_device_info = {
558 .asic_family = CHIP_VANGOGH,
559 .asic_name = "vangogh",
560 .gfx_target_version = 100303,
561 .max_pasid_bits = 16,
562 .max_no_of_hqd = 24,
563 .doorbell_size = 8,
564 .ih_ring_entry_size = 8 * sizeof(uint32_t),
565 .event_interrupt_class = &event_interrupt_class_v9,
566 .num_of_watch_points = 4,
567 .mqd_size_aligned = MQD_SIZE_ALIGNED,
568 .needs_iommu_device = false,
569 .supports_cwsr = true,
570 .needs_pci_atomics = true,
571 .no_atomic_fw_version = 92,
572 .num_sdma_engines = 1,
573 .num_xgmi_sdma_engines = 0,
574 .num_sdma_queues_per_engine = 2,
575};
576
577static const struct kfd_device_info dimgrey_cavefish_device_info = {
578 .asic_family = CHIP_DIMGREY_CAVEFISH,
579 .asic_name = "dimgrey_cavefish",
580 .gfx_target_version = 100302,
581 .max_pasid_bits = 16,
582 .max_no_of_hqd = 24,
583 .doorbell_size = 8,
584 .ih_ring_entry_size = 8 * sizeof(uint32_t),
585 .event_interrupt_class = &event_interrupt_class_v9,
586 .num_of_watch_points = 4,
587 .mqd_size_aligned = MQD_SIZE_ALIGNED,
588 .needs_iommu_device = false,
589 .supports_cwsr = true,
590 .needs_pci_atomics = true,
591 .no_atomic_fw_version = 92,
592 .num_sdma_engines = 2,
593 .num_xgmi_sdma_engines = 0,
594 .num_sdma_queues_per_engine = 8,
595};
596
597static const struct kfd_device_info beige_goby_device_info = {
598 .asic_family = CHIP_BEIGE_GOBY,
599 .asic_name = "beige_goby",
600 .gfx_target_version = 100304,
601 .max_pasid_bits = 16,
602 .max_no_of_hqd = 24,
603 .doorbell_size = 8,
604 .ih_ring_entry_size = 8 * sizeof(uint32_t),
605 .event_interrupt_class = &event_interrupt_class_v9,
606 .num_of_watch_points = 4,
607 .mqd_size_aligned = MQD_SIZE_ALIGNED,
608 .needs_iommu_device = false,
609 .supports_cwsr = true,
610 .needs_pci_atomics = true,
611 .no_atomic_fw_version = 92,
612 .num_sdma_engines = 1,
613 .num_xgmi_sdma_engines = 0,
614 .num_sdma_queues_per_engine = 8,
615};
616
617static const struct kfd_device_info yellow_carp_device_info = {
618 .asic_family = CHIP_YELLOW_CARP,
619 .asic_name = "yellow_carp",
620 .gfx_target_version = 100305,
621 .max_pasid_bits = 16,
622 .max_no_of_hqd = 24,
623 .doorbell_size = 8,
624 .ih_ring_entry_size = 8 * sizeof(uint32_t),
625 .event_interrupt_class = &event_interrupt_class_v9,
626 .num_of_watch_points = 4,
627 .mqd_size_aligned = MQD_SIZE_ALIGNED,
628 .needs_iommu_device = false,
629 .supports_cwsr = true,
630 .needs_pci_atomics = true,
631 .no_atomic_fw_version = 92,
632 .num_sdma_engines = 1,
633 .num_xgmi_sdma_engines = 0,
634 .num_sdma_queues_per_engine = 2,
635};
636
637static const struct kfd_device_info cyan_skillfish_device_info = {
638 .asic_family = CHIP_CYAN_SKILLFISH,
639 .asic_name = "cyan_skillfish",
640 .gfx_target_version = 100103,
641 .max_pasid_bits = 16,
642 .max_no_of_hqd = 24,
643 .doorbell_size = 8,
644 .ih_ring_entry_size = 8 * sizeof(uint32_t),
645 .event_interrupt_class = &event_interrupt_class_v9,
646 .num_of_watch_points = 4,
647 .mqd_size_aligned = MQD_SIZE_ALIGNED,
648 .needs_iommu_device = false,
649 .supports_cwsr = true,
650 .needs_pci_atomics = true,
651 .num_sdma_engines = 2,
652 .num_xgmi_sdma_engines = 0,
653 .num_sdma_queues_per_engine = 8,
654};
655
656
657static const struct kfd_device_info *kfd_supported_devices[][2] = {
658#ifdef KFD_SUPPORT_IOMMU_V2
659 [CHIP_KAVERI] = {&kaveri_device_info, NULL},
660 [CHIP_CARRIZO] = {&carrizo_device_info, NULL},
661#endif
662 [CHIP_RAVEN] = {&raven_device_info, NULL},
663 [CHIP_HAWAII] = {&hawaii_device_info, NULL},
664 [CHIP_TONGA] = {&tonga_device_info, NULL},
665 [CHIP_FIJI] = {&fiji_device_info, &fiji_vf_device_info},
666 [CHIP_POLARIS10] = {&polaris10_device_info, &polaris10_vf_device_info},
667 [CHIP_POLARIS11] = {&polaris11_device_info, NULL},
668 [CHIP_POLARIS12] = {&polaris12_device_info, NULL},
669 [CHIP_VEGAM] = {&vegam_device_info, NULL},
670 [CHIP_VEGA10] = {&vega10_device_info, &vega10_vf_device_info},
671 [CHIP_VEGA12] = {&vega12_device_info, NULL},
672 [CHIP_VEGA20] = {&vega20_device_info, NULL},
673 [CHIP_RENOIR] = {&renoir_device_info, NULL},
674 [CHIP_ARCTURUS] = {&arcturus_device_info, &arcturus_device_info},
675 [CHIP_ALDEBARAN] = {&aldebaran_device_info, &aldebaran_device_info},
676 [CHIP_NAVI10] = {&navi10_device_info, NULL},
677 [CHIP_NAVI12] = {&navi12_device_info, &navi12_device_info},
678 [CHIP_NAVI14] = {&navi14_device_info, NULL},
679 [CHIP_SIENNA_CICHLID] = {&sienna_cichlid_device_info, &sienna_cichlid_device_info},
680 [CHIP_NAVY_FLOUNDER] = {&navy_flounder_device_info, &navy_flounder_device_info},
681 [CHIP_VANGOGH] = {&vangogh_device_info, NULL},
682 [CHIP_DIMGREY_CAVEFISH] = {&dimgrey_cavefish_device_info, &dimgrey_cavefish_device_info},
683 [CHIP_BEIGE_GOBY] = {&beige_goby_device_info, &beige_goby_device_info},
684 [CHIP_YELLOW_CARP] = {&yellow_carp_device_info, NULL},
685 [CHIP_CYAN_SKILLFISH] = {&cyan_skillfish_device_info, NULL},
686};
687
688static int kfd_gtt_sa_init(struct kfd_dev *kfd, unsigned int buf_size,
689 unsigned int chunk_size);
690static void kfd_gtt_sa_fini(struct kfd_dev *kfd);
691
692static int kfd_resume(struct kfd_dev *kfd);
693
694struct kfd_dev *kgd2kfd_probe(struct kgd_dev *kgd,
695 struct pci_dev *pdev, unsigned int asic_type, bool vf)
696{
697 struct kfd_dev *kfd;
698 const struct kfd_device_info *device_info;
699 const struct kfd2kgd_calls *f2g;
700
701 if (asic_type >= sizeof(kfd_supported_devices) / (sizeof(void *) * 2)
702 || asic_type >= sizeof(kfd2kgd_funcs) / sizeof(void *)) {
703 dev_err(kfd_device, "asic_type %d out of range\n", asic_type);
704 return NULL;
705 }
706
707 device_info = kfd_supported_devices[asic_type][vf];
708 f2g = kfd2kgd_funcs[asic_type];
709
710 if (!device_info || !f2g) {
711 dev_err(kfd_device, "%s %s not supported in kfd\n",
712 amdgpu_asic_name[asic_type], vf ? "VF" : "");
713 return NULL;
714 }
715
716 kfd = kzalloc(sizeof(*kfd), GFP_KERNEL);
717 if (!kfd)
718 return NULL;
719
720 kfd->kgd = kgd;
721 kfd->device_info = device_info;
722 kfd->pdev = pdev;
723 kfd->init_complete = false;
724 kfd->kfd2kgd = f2g;
725 atomic_set(&kfd->compute_profile, 0);
726
727 mutex_init(&kfd->doorbell_mutex);
728 memset(&kfd->doorbell_available_index, 0,
729 sizeof(kfd->doorbell_available_index));
730
731 atomic_set(&kfd->sram_ecc_flag, 0);
732
733 ida_init(&kfd->doorbell_ida);
734
735 return kfd;
736}
737
738static void kfd_cwsr_init(struct kfd_dev *kfd)
739{
740 if (cwsr_enable && kfd->device_info->supports_cwsr) {
741 if (kfd->device_info->asic_family < CHIP_VEGA10) {
742 BUILD_BUG_ON(sizeof(cwsr_trap_gfx8_hex) > PAGE_SIZE);
743 kfd->cwsr_isa = cwsr_trap_gfx8_hex;
744 kfd->cwsr_isa_size = sizeof(cwsr_trap_gfx8_hex);
745 } else if (kfd->device_info->asic_family == CHIP_ARCTURUS) {
746 BUILD_BUG_ON(sizeof(cwsr_trap_arcturus_hex) > PAGE_SIZE);
747 kfd->cwsr_isa = cwsr_trap_arcturus_hex;
748 kfd->cwsr_isa_size = sizeof(cwsr_trap_arcturus_hex);
749 } else if (kfd->device_info->asic_family == CHIP_ALDEBARAN) {
750 BUILD_BUG_ON(sizeof(cwsr_trap_aldebaran_hex) > PAGE_SIZE);
751 kfd->cwsr_isa = cwsr_trap_aldebaran_hex;
752 kfd->cwsr_isa_size = sizeof(cwsr_trap_aldebaran_hex);
753 } else if (kfd->device_info->asic_family < CHIP_NAVI10) {
754 BUILD_BUG_ON(sizeof(cwsr_trap_gfx9_hex) > PAGE_SIZE);
755 kfd->cwsr_isa = cwsr_trap_gfx9_hex;
756 kfd->cwsr_isa_size = sizeof(cwsr_trap_gfx9_hex);
757 } else if (kfd->device_info->asic_family < CHIP_SIENNA_CICHLID) {
758 BUILD_BUG_ON(sizeof(cwsr_trap_nv1x_hex) > PAGE_SIZE);
759 kfd->cwsr_isa = cwsr_trap_nv1x_hex;
760 kfd->cwsr_isa_size = sizeof(cwsr_trap_nv1x_hex);
761 } else {
762 BUILD_BUG_ON(sizeof(cwsr_trap_gfx10_hex) > PAGE_SIZE);
763 kfd->cwsr_isa = cwsr_trap_gfx10_hex;
764 kfd->cwsr_isa_size = sizeof(cwsr_trap_gfx10_hex);
765 }
766
767 kfd->cwsr_enabled = true;
768 }
769}
770
771static int kfd_gws_init(struct kfd_dev *kfd)
772{
773 int ret = 0;
774
775 if (kfd->dqm->sched_policy == KFD_SCHED_POLICY_NO_HWS)
776 return 0;
777
778 if (hws_gws_support
779 || (kfd->device_info->asic_family == CHIP_VEGA10
780 && kfd->mec2_fw_version >= 0x81b3)
781 || (kfd->device_info->asic_family >= CHIP_VEGA12
782 && kfd->device_info->asic_family <= CHIP_RAVEN
783 && kfd->mec2_fw_version >= 0x1b3)
784 || (kfd->device_info->asic_family == CHIP_ARCTURUS
785 && kfd->mec2_fw_version >= 0x30)
786 || (kfd->device_info->asic_family == CHIP_ALDEBARAN
787 && kfd->mec2_fw_version >= 0x28))
788 ret = amdgpu_amdkfd_alloc_gws(kfd->kgd,
789 amdgpu_amdkfd_get_num_gws(kfd->kgd), &kfd->gws);
790
791 return ret;
792}
793
794static void kfd_smi_init(struct kfd_dev *dev) {
795 INIT_LIST_HEAD(&dev->smi_clients);
796 spin_lock_init(&dev->smi_lock);
797}
798
799bool kgd2kfd_device_init(struct kfd_dev *kfd,
800 struct drm_device *ddev,
801 const struct kgd2kfd_shared_resources *gpu_resources)
802{
803 unsigned int size, map_process_packet_size;
804
805 kfd->ddev = ddev;
806 kfd->mec_fw_version = amdgpu_amdkfd_get_fw_version(kfd->kgd,
807 KGD_ENGINE_MEC1);
808 kfd->mec2_fw_version = amdgpu_amdkfd_get_fw_version(kfd->kgd,
809 KGD_ENGINE_MEC2);
810 kfd->sdma_fw_version = amdgpu_amdkfd_get_fw_version(kfd->kgd,
811 KGD_ENGINE_SDMA1);
812 kfd->shared_resources = *gpu_resources;
813
814 kfd->vm_info.first_vmid_kfd = ffs(gpu_resources->compute_vmid_bitmap)-1;
815 kfd->vm_info.last_vmid_kfd = fls(gpu_resources->compute_vmid_bitmap)-1;
816 kfd->vm_info.vmid_num_kfd = kfd->vm_info.last_vmid_kfd
817 - kfd->vm_info.first_vmid_kfd + 1;
818
819
820
821
822
823 kfd->pci_atomic_requested = amdgpu_amdkfd_have_atomics_support(kfd->kgd);
824 if (!kfd->pci_atomic_requested &&
825 kfd->device_info->needs_pci_atomics &&
826 (!kfd->device_info->no_atomic_fw_version ||
827 kfd->mec_fw_version < kfd->device_info->no_atomic_fw_version)) {
828 dev_info(kfd_device,
829 "skipped device %x:%x, PCI rejects atomics %d<%d\n",
830 kfd->pdev->vendor, kfd->pdev->device,
831 kfd->mec_fw_version,
832 kfd->device_info->no_atomic_fw_version);
833 return false;
834 }
835
836
837 if ((hws_max_conc_proc < 0)
838 || (hws_max_conc_proc > kfd->vm_info.vmid_num_kfd)) {
839 dev_err(kfd_device,
840 "hws_max_conc_proc %d must be between 0 and %d, use %d instead\n",
841 hws_max_conc_proc, kfd->vm_info.vmid_num_kfd,
842 kfd->vm_info.vmid_num_kfd);
843 kfd->max_proc_per_quantum = kfd->vm_info.vmid_num_kfd;
844 } else
845 kfd->max_proc_per_quantum = hws_max_conc_proc;
846
847
848 size = max_num_of_queues_per_device *
849 kfd->device_info->mqd_size_aligned;
850
851
852
853
854
855 map_process_packet_size =
856 kfd->device_info->asic_family == CHIP_ALDEBARAN ?
857 sizeof(struct pm4_mes_map_process_aldebaran) :
858 sizeof(struct pm4_mes_map_process);
859 size += (KFD_MAX_NUM_OF_PROCESSES * map_process_packet_size +
860 max_num_of_queues_per_device * sizeof(struct pm4_mes_map_queues)
861 + sizeof(struct pm4_mes_runlist)) * 2;
862
863
864 size += KFD_KERNEL_QUEUE_SIZE * 2;
865
866
867 size += 512 * 1024;
868
869 if (amdgpu_amdkfd_alloc_gtt_mem(
870 kfd->kgd, size, &kfd->gtt_mem,
871 &kfd->gtt_start_gpu_addr, &kfd->gtt_start_cpu_ptr,
872 false)) {
873 dev_err(kfd_device, "Could not allocate %d bytes\n", size);
874 goto alloc_gtt_mem_failure;
875 }
876
877 dev_info(kfd_device, "Allocated %d bytes on gart\n", size);
878
879
880 if (kfd_gtt_sa_init(kfd, size, 512) != 0) {
881 dev_err(kfd_device, "Error initializing gtt sub-allocator\n");
882 goto kfd_gtt_sa_init_error;
883 }
884
885 if (kfd_doorbell_init(kfd)) {
886 dev_err(kfd_device,
887 "Error initializing doorbell aperture\n");
888 goto kfd_doorbell_error;
889 }
890
891 kfd->hive_id = amdgpu_amdkfd_get_hive_id(kfd->kgd);
892
893 kfd->noretry = amdgpu_amdkfd_get_noretry(kfd->kgd);
894
895 if (kfd_interrupt_init(kfd)) {
896 dev_err(kfd_device, "Error initializing interrupts\n");
897 goto kfd_interrupt_error;
898 }
899
900 kfd->dqm = device_queue_manager_init(kfd);
901 if (!kfd->dqm) {
902 dev_err(kfd_device, "Error initializing queue manager\n");
903 goto device_queue_manager_error;
904 }
905
906
907
908
909 if (kfd_gws_init(kfd)) {
910 dev_err(kfd_device, "Could not allocate %d gws\n",
911 amdgpu_amdkfd_get_num_gws(kfd->kgd));
912 goto gws_error;
913 }
914
915
916 kfd_double_confirm_iommu_support(kfd);
917
918 if (kfd_iommu_device_init(kfd)) {
919 dev_err(kfd_device, "Error initializing iommuv2\n");
920 goto device_iommu_error;
921 }
922
923 kfd_cwsr_init(kfd);
924
925 svm_migrate_init((struct amdgpu_device *)kfd->kgd);
926
927 if (kfd_resume(kfd))
928 goto kfd_resume_error;
929
930 kfd->dbgmgr = NULL;
931
932 if (kfd_topology_add_device(kfd)) {
933 dev_err(kfd_device, "Error adding device to topology\n");
934 goto kfd_topology_add_device_error;
935 }
936
937 kfd_smi_init(kfd);
938
939 kfd->init_complete = true;
940 dev_info(kfd_device, "added device %x:%x\n", kfd->pdev->vendor,
941 kfd->pdev->device);
942
943 pr_debug("Starting kfd with the following scheduling policy %d\n",
944 kfd->dqm->sched_policy);
945
946 goto out;
947
948kfd_topology_add_device_error:
949kfd_resume_error:
950device_iommu_error:
951gws_error:
952 device_queue_manager_uninit(kfd->dqm);
953device_queue_manager_error:
954 kfd_interrupt_exit(kfd);
955kfd_interrupt_error:
956 kfd_doorbell_fini(kfd);
957kfd_doorbell_error:
958 kfd_gtt_sa_fini(kfd);
959kfd_gtt_sa_init_error:
960 amdgpu_amdkfd_free_gtt_mem(kfd->kgd, kfd->gtt_mem);
961alloc_gtt_mem_failure:
962 if (kfd->gws)
963 amdgpu_amdkfd_free_gws(kfd->kgd, kfd->gws);
964 dev_err(kfd_device,
965 "device %x:%x NOT added due to errors\n",
966 kfd->pdev->vendor, kfd->pdev->device);
967out:
968 return kfd->init_complete;
969}
970
971void kgd2kfd_device_exit(struct kfd_dev *kfd)
972{
973 if (kfd->init_complete) {
974 device_queue_manager_uninit(kfd->dqm);
975 kfd_interrupt_exit(kfd);
976 kfd_topology_remove_device(kfd);
977 kfd_doorbell_fini(kfd);
978 ida_destroy(&kfd->doorbell_ida);
979 kfd_gtt_sa_fini(kfd);
980 amdgpu_amdkfd_free_gtt_mem(kfd->kgd, kfd->gtt_mem);
981 if (kfd->gws)
982 amdgpu_amdkfd_free_gws(kfd->kgd, kfd->gws);
983 }
984
985 kfree(kfd);
986}
987
988int kgd2kfd_pre_reset(struct kfd_dev *kfd)
989{
990 if (!kfd->init_complete)
991 return 0;
992
993 kfd_smi_event_update_gpu_reset(kfd, false);
994
995 kfd->dqm->ops.pre_reset(kfd->dqm);
996
997 kgd2kfd_suspend(kfd, false);
998
999 kfd_signal_reset_event(kfd);
1000 return 0;
1001}
1002
1003
1004
1005
1006
1007
1008
1009int kgd2kfd_post_reset(struct kfd_dev *kfd)
1010{
1011 int ret;
1012
1013 if (!kfd->init_complete)
1014 return 0;
1015
1016 ret = kfd_resume(kfd);
1017 if (ret)
1018 return ret;
1019 atomic_dec(&kfd_locked);
1020
1021 atomic_set(&kfd->sram_ecc_flag, 0);
1022
1023 kfd_smi_event_update_gpu_reset(kfd, true);
1024
1025 return 0;
1026}
1027
1028bool kfd_is_locked(void)
1029{
1030 return (atomic_read(&kfd_locked) > 0);
1031}
1032
1033void kgd2kfd_suspend(struct kfd_dev *kfd, bool run_pm)
1034{
1035 if (!kfd->init_complete)
1036 return;
1037
1038
1039 if (!run_pm) {
1040
1041 if (atomic_inc_return(&kfd_locked) == 1)
1042 kfd_suspend_all_processes();
1043 }
1044
1045 kfd->dqm->ops.stop(kfd->dqm);
1046 kfd_iommu_suspend(kfd);
1047}
1048
1049int kgd2kfd_resume(struct kfd_dev *kfd, bool run_pm)
1050{
1051 int ret, count;
1052
1053 if (!kfd->init_complete)
1054 return 0;
1055
1056 ret = kfd_resume(kfd);
1057 if (ret)
1058 return ret;
1059
1060
1061 if (!run_pm) {
1062 count = atomic_dec_return(&kfd_locked);
1063 WARN_ONCE(count < 0, "KFD suspend / resume ref. error");
1064 if (count == 0)
1065 ret = kfd_resume_all_processes();
1066 }
1067
1068 return ret;
1069}
1070
1071int kgd2kfd_resume_iommu(struct kfd_dev *kfd)
1072{
1073 int err = 0;
1074
1075 err = kfd_iommu_resume(kfd);
1076 if (err)
1077 dev_err(kfd_device,
1078 "Failed to resume IOMMU for device %x:%x\n",
1079 kfd->pdev->vendor, kfd->pdev->device);
1080 return err;
1081}
1082
1083static int kfd_resume(struct kfd_dev *kfd)
1084{
1085 int err = 0;
1086
1087 err = kfd->dqm->ops.start(kfd->dqm);
1088 if (err)
1089 dev_err(kfd_device,
1090 "Error starting queue manager for device %x:%x\n",
1091 kfd->pdev->vendor, kfd->pdev->device);
1092
1093 return err;
1094}
1095
1096static inline void kfd_queue_work(struct workqueue_struct *wq,
1097 struct work_struct *work)
1098{
1099 int cpu, new_cpu;
1100
1101 cpu = new_cpu = smp_processor_id();
1102 do {
1103 new_cpu = cpumask_next(new_cpu, cpu_online_mask) % nr_cpu_ids;
1104 if (cpu_to_node(new_cpu) == numa_node_id())
1105 break;
1106 } while (cpu != new_cpu);
1107
1108 queue_work_on(new_cpu, wq, work);
1109}
1110
1111
1112void kgd2kfd_interrupt(struct kfd_dev *kfd, const void *ih_ring_entry)
1113{
1114 uint32_t patched_ihre[KFD_MAX_RING_ENTRY_SIZE];
1115 bool is_patched = false;
1116 unsigned long flags;
1117
1118 if (!kfd->init_complete)
1119 return;
1120
1121 if (kfd->device_info->ih_ring_entry_size > sizeof(patched_ihre)) {
1122 dev_err_once(kfd_device, "Ring entry too small\n");
1123 return;
1124 }
1125
1126 spin_lock_irqsave(&kfd->interrupt_lock, flags);
1127
1128 if (kfd->interrupts_active
1129 && interrupt_is_wanted(kfd, ih_ring_entry,
1130 patched_ihre, &is_patched)
1131 && enqueue_ih_ring_entry(kfd,
1132 is_patched ? patched_ihre : ih_ring_entry))
1133 kfd_queue_work(kfd->ih_wq, &kfd->interrupt_work);
1134
1135 spin_unlock_irqrestore(&kfd->interrupt_lock, flags);
1136}
1137
1138int kgd2kfd_quiesce_mm(struct mm_struct *mm)
1139{
1140 struct kfd_process *p;
1141 int r;
1142
1143
1144
1145
1146
1147 p = kfd_lookup_process_by_mm(mm);
1148 if (!p)
1149 return -ESRCH;
1150
1151 WARN(debug_evictions, "Evicting pid %d", p->lead_thread->pid);
1152 r = kfd_process_evict_queues(p);
1153
1154 kfd_unref_process(p);
1155 return r;
1156}
1157
1158int kgd2kfd_resume_mm(struct mm_struct *mm)
1159{
1160 struct kfd_process *p;
1161 int r;
1162
1163
1164
1165
1166
1167 p = kfd_lookup_process_by_mm(mm);
1168 if (!p)
1169 return -ESRCH;
1170
1171 r = kfd_process_restore_queues(p);
1172
1173 kfd_unref_process(p);
1174 return r;
1175}
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185int kgd2kfd_schedule_evict_and_restore_process(struct mm_struct *mm,
1186 struct dma_fence *fence)
1187{
1188 struct kfd_process *p;
1189 unsigned long active_time;
1190 unsigned long delay_jiffies = msecs_to_jiffies(PROCESS_ACTIVE_TIME_MS);
1191
1192 if (!fence)
1193 return -EINVAL;
1194
1195 if (dma_fence_is_signaled(fence))
1196 return 0;
1197
1198 p = kfd_lookup_process_by_mm(mm);
1199 if (!p)
1200 return -ENODEV;
1201
1202 if (fence->seqno == p->last_eviction_seqno)
1203 goto out;
1204
1205 p->last_eviction_seqno = fence->seqno;
1206
1207
1208
1209
1210 active_time = get_jiffies_64() - p->last_restore_timestamp;
1211 if (delay_jiffies > active_time)
1212 delay_jiffies -= active_time;
1213 else
1214 delay_jiffies = 0;
1215
1216
1217
1218
1219 WARN(debug_evictions, "Scheduling eviction of pid %d in %ld jiffies",
1220 p->lead_thread->pid, delay_jiffies);
1221 schedule_delayed_work(&p->eviction_work, delay_jiffies);
1222out:
1223 kfd_unref_process(p);
1224 return 0;
1225}
1226
1227static int kfd_gtt_sa_init(struct kfd_dev *kfd, unsigned int buf_size,
1228 unsigned int chunk_size)
1229{
1230 unsigned int num_of_longs;
1231
1232 if (WARN_ON(buf_size < chunk_size))
1233 return -EINVAL;
1234 if (WARN_ON(buf_size == 0))
1235 return -EINVAL;
1236 if (WARN_ON(chunk_size == 0))
1237 return -EINVAL;
1238
1239 kfd->gtt_sa_chunk_size = chunk_size;
1240 kfd->gtt_sa_num_of_chunks = buf_size / chunk_size;
1241
1242 num_of_longs = (kfd->gtt_sa_num_of_chunks + BITS_PER_LONG - 1) /
1243 BITS_PER_LONG;
1244
1245 kfd->gtt_sa_bitmap = kcalloc(num_of_longs, sizeof(long), GFP_KERNEL);
1246
1247 if (!kfd->gtt_sa_bitmap)
1248 return -ENOMEM;
1249
1250 pr_debug("gtt_sa_num_of_chunks = %d, gtt_sa_bitmap = %p\n",
1251 kfd->gtt_sa_num_of_chunks, kfd->gtt_sa_bitmap);
1252
1253 mutex_init(&kfd->gtt_sa_lock);
1254
1255 return 0;
1256
1257}
1258
1259static void kfd_gtt_sa_fini(struct kfd_dev *kfd)
1260{
1261 mutex_destroy(&kfd->gtt_sa_lock);
1262 kfree(kfd->gtt_sa_bitmap);
1263}
1264
1265static inline uint64_t kfd_gtt_sa_calc_gpu_addr(uint64_t start_addr,
1266 unsigned int bit_num,
1267 unsigned int chunk_size)
1268{
1269 return start_addr + bit_num * chunk_size;
1270}
1271
1272static inline uint32_t *kfd_gtt_sa_calc_cpu_addr(void *start_addr,
1273 unsigned int bit_num,
1274 unsigned int chunk_size)
1275{
1276 return (uint32_t *) ((uint64_t) start_addr + bit_num * chunk_size);
1277}
1278
1279int kfd_gtt_sa_allocate(struct kfd_dev *kfd, unsigned int size,
1280 struct kfd_mem_obj **mem_obj)
1281{
1282 unsigned int found, start_search, cur_size;
1283
1284 if (size == 0)
1285 return -EINVAL;
1286
1287 if (size > kfd->gtt_sa_num_of_chunks * kfd->gtt_sa_chunk_size)
1288 return -ENOMEM;
1289
1290 *mem_obj = kzalloc(sizeof(struct kfd_mem_obj), GFP_KERNEL);
1291 if (!(*mem_obj))
1292 return -ENOMEM;
1293
1294 pr_debug("Allocated mem_obj = %p for size = %d\n", *mem_obj, size);
1295
1296 start_search = 0;
1297
1298 mutex_lock(&kfd->gtt_sa_lock);
1299
1300kfd_gtt_restart_search:
1301
1302 found = find_next_zero_bit(kfd->gtt_sa_bitmap,
1303 kfd->gtt_sa_num_of_chunks,
1304 start_search);
1305
1306 pr_debug("Found = %d\n", found);
1307
1308
1309 if (found == kfd->gtt_sa_num_of_chunks)
1310 goto kfd_gtt_no_free_chunk;
1311
1312
1313 (*mem_obj)->range_start = found;
1314 (*mem_obj)->range_end = found;
1315 (*mem_obj)->gpu_addr = kfd_gtt_sa_calc_gpu_addr(
1316 kfd->gtt_start_gpu_addr,
1317 found,
1318 kfd->gtt_sa_chunk_size);
1319 (*mem_obj)->cpu_ptr = kfd_gtt_sa_calc_cpu_addr(
1320 kfd->gtt_start_cpu_ptr,
1321 found,
1322 kfd->gtt_sa_chunk_size);
1323
1324 pr_debug("gpu_addr = %p, cpu_addr = %p\n",
1325 (uint64_t *) (*mem_obj)->gpu_addr, (*mem_obj)->cpu_ptr);
1326
1327
1328 if (size <= kfd->gtt_sa_chunk_size) {
1329 pr_debug("Single bit\n");
1330 set_bit(found, kfd->gtt_sa_bitmap);
1331 goto kfd_gtt_out;
1332 }
1333
1334
1335 cur_size = size - kfd->gtt_sa_chunk_size;
1336 do {
1337 (*mem_obj)->range_end =
1338 find_next_zero_bit(kfd->gtt_sa_bitmap,
1339 kfd->gtt_sa_num_of_chunks, ++found);
1340
1341
1342
1343
1344
1345 if ((*mem_obj)->range_end != found) {
1346 start_search = found;
1347 goto kfd_gtt_restart_search;
1348 }
1349
1350
1351
1352
1353 if (found == kfd->gtt_sa_num_of_chunks)
1354 goto kfd_gtt_no_free_chunk;
1355
1356
1357 if (cur_size <= kfd->gtt_sa_chunk_size)
1358 cur_size = 0;
1359 else
1360 cur_size -= kfd->gtt_sa_chunk_size;
1361
1362 } while (cur_size > 0);
1363
1364 pr_debug("range_start = %d, range_end = %d\n",
1365 (*mem_obj)->range_start, (*mem_obj)->range_end);
1366
1367
1368 for (found = (*mem_obj)->range_start;
1369 found <= (*mem_obj)->range_end;
1370 found++)
1371 set_bit(found, kfd->gtt_sa_bitmap);
1372
1373kfd_gtt_out:
1374 mutex_unlock(&kfd->gtt_sa_lock);
1375 return 0;
1376
1377kfd_gtt_no_free_chunk:
1378 pr_debug("Allocation failed with mem_obj = %p\n", *mem_obj);
1379 mutex_unlock(&kfd->gtt_sa_lock);
1380 kfree(*mem_obj);
1381 return -ENOMEM;
1382}
1383
1384int kfd_gtt_sa_free(struct kfd_dev *kfd, struct kfd_mem_obj *mem_obj)
1385{
1386 unsigned int bit;
1387
1388
1389 if (!mem_obj)
1390 return 0;
1391
1392 pr_debug("Free mem_obj = %p, range_start = %d, range_end = %d\n",
1393 mem_obj, mem_obj->range_start, mem_obj->range_end);
1394
1395 mutex_lock(&kfd->gtt_sa_lock);
1396
1397
1398 for (bit = mem_obj->range_start;
1399 bit <= mem_obj->range_end;
1400 bit++)
1401 clear_bit(bit, kfd->gtt_sa_bitmap);
1402
1403 mutex_unlock(&kfd->gtt_sa_lock);
1404
1405 kfree(mem_obj);
1406 return 0;
1407}
1408
1409void kgd2kfd_set_sram_ecc_flag(struct kfd_dev *kfd)
1410{
1411 if (kfd)
1412 atomic_inc(&kfd->sram_ecc_flag);
1413}
1414
1415void kfd_inc_compute_active(struct kfd_dev *kfd)
1416{
1417 if (atomic_inc_return(&kfd->compute_profile) == 1)
1418 amdgpu_amdkfd_set_compute_idle(kfd->kgd, false);
1419}
1420
1421void kfd_dec_compute_active(struct kfd_dev *kfd)
1422{
1423 int count = atomic_dec_return(&kfd->compute_profile);
1424
1425 if (count == 0)
1426 amdgpu_amdkfd_set_compute_idle(kfd->kgd, true);
1427 WARN_ONCE(count < 0, "Compute profile ref. count error");
1428}
1429
1430void kgd2kfd_smi_event_throttle(struct kfd_dev *kfd, uint64_t throttle_bitmask)
1431{
1432 if (kfd && kfd->init_complete)
1433 kfd_smi_event_update_thermal_throttling(kfd, throttle_bitmask);
1434}
1435
1436#if defined(CONFIG_DEBUG_FS)
1437
1438
1439
1440
1441int kfd_debugfs_hang_hws(struct kfd_dev *dev)
1442{
1443 if (dev->dqm->sched_policy != KFD_SCHED_POLICY_HWS) {
1444 pr_err("HWS is not enabled");
1445 return -EINVAL;
1446 }
1447
1448 return dqm_debugfs_hang_hws(dev->dqm);
1449}
1450
1451#endif
1452