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23#include <linux/types.h>
24#include <linux/kernel.h>
25#include <linux/pci.h>
26#include <linux/errno.h>
27#include <linux/acpi.h>
28#include <linux/hash.h>
29#include <linux/cpufreq.h>
30#include <linux/log2.h>
31#include <linux/dmi.h>
32#include <linux/atomic.h>
33
34#include "kfd_priv.h"
35#include "kfd_crat.h"
36#include "kfd_topology.h"
37#include "kfd_device_queue_manager.h"
38#include "kfd_iommu.h"
39#include "kfd_svm.h"
40#include "amdgpu_amdkfd.h"
41#include "amdgpu_ras.h"
42
43
44static struct list_head topology_device_list;
45static struct kfd_system_properties sys_props;
46
47static DECLARE_RWSEM(topology_lock);
48static atomic_t topology_crat_proximity_domain;
49
50struct kfd_topology_device *kfd_topology_device_by_proximity_domain(
51 uint32_t proximity_domain)
52{
53 struct kfd_topology_device *top_dev;
54 struct kfd_topology_device *device = NULL;
55
56 down_read(&topology_lock);
57
58 list_for_each_entry(top_dev, &topology_device_list, list)
59 if (top_dev->proximity_domain == proximity_domain) {
60 device = top_dev;
61 break;
62 }
63
64 up_read(&topology_lock);
65
66 return device;
67}
68
69struct kfd_topology_device *kfd_topology_device_by_id(uint32_t gpu_id)
70{
71 struct kfd_topology_device *top_dev = NULL;
72 struct kfd_topology_device *ret = NULL;
73
74 down_read(&topology_lock);
75
76 list_for_each_entry(top_dev, &topology_device_list, list)
77 if (top_dev->gpu_id == gpu_id) {
78 ret = top_dev;
79 break;
80 }
81
82 up_read(&topology_lock);
83
84 return ret;
85}
86
87struct kfd_dev *kfd_device_by_id(uint32_t gpu_id)
88{
89 struct kfd_topology_device *top_dev;
90
91 top_dev = kfd_topology_device_by_id(gpu_id);
92 if (!top_dev)
93 return NULL;
94
95 return top_dev->gpu;
96}
97
98struct kfd_dev *kfd_device_by_pci_dev(const struct pci_dev *pdev)
99{
100 struct kfd_topology_device *top_dev;
101 struct kfd_dev *device = NULL;
102
103 down_read(&topology_lock);
104
105 list_for_each_entry(top_dev, &topology_device_list, list)
106 if (top_dev->gpu && top_dev->gpu->pdev == pdev) {
107 device = top_dev->gpu;
108 break;
109 }
110
111 up_read(&topology_lock);
112
113 return device;
114}
115
116struct kfd_dev *kfd_device_by_kgd(const struct kgd_dev *kgd)
117{
118 struct kfd_topology_device *top_dev;
119 struct kfd_dev *device = NULL;
120
121 down_read(&topology_lock);
122
123 list_for_each_entry(top_dev, &topology_device_list, list)
124 if (top_dev->gpu && top_dev->gpu->kgd == kgd) {
125 device = top_dev->gpu;
126 break;
127 }
128
129 up_read(&topology_lock);
130
131 return device;
132}
133
134
135static void kfd_release_topology_device(struct kfd_topology_device *dev)
136{
137 struct kfd_mem_properties *mem;
138 struct kfd_cache_properties *cache;
139 struct kfd_iolink_properties *iolink;
140 struct kfd_perf_properties *perf;
141
142 list_del(&dev->list);
143
144 while (dev->mem_props.next != &dev->mem_props) {
145 mem = container_of(dev->mem_props.next,
146 struct kfd_mem_properties, list);
147 list_del(&mem->list);
148 kfree(mem);
149 }
150
151 while (dev->cache_props.next != &dev->cache_props) {
152 cache = container_of(dev->cache_props.next,
153 struct kfd_cache_properties, list);
154 list_del(&cache->list);
155 kfree(cache);
156 }
157
158 while (dev->io_link_props.next != &dev->io_link_props) {
159 iolink = container_of(dev->io_link_props.next,
160 struct kfd_iolink_properties, list);
161 list_del(&iolink->list);
162 kfree(iolink);
163 }
164
165 while (dev->perf_props.next != &dev->perf_props) {
166 perf = container_of(dev->perf_props.next,
167 struct kfd_perf_properties, list);
168 list_del(&perf->list);
169 kfree(perf);
170 }
171
172 kfree(dev);
173}
174
175void kfd_release_topology_device_list(struct list_head *device_list)
176{
177 struct kfd_topology_device *dev;
178
179 while (!list_empty(device_list)) {
180 dev = list_first_entry(device_list,
181 struct kfd_topology_device, list);
182 kfd_release_topology_device(dev);
183 }
184}
185
186static void kfd_release_live_view(void)
187{
188 kfd_release_topology_device_list(&topology_device_list);
189 memset(&sys_props, 0, sizeof(sys_props));
190}
191
192struct kfd_topology_device *kfd_create_topology_device(
193 struct list_head *device_list)
194{
195 struct kfd_topology_device *dev;
196
197 dev = kfd_alloc_struct(dev);
198 if (!dev) {
199 pr_err("No memory to allocate a topology device");
200 return NULL;
201 }
202
203 INIT_LIST_HEAD(&dev->mem_props);
204 INIT_LIST_HEAD(&dev->cache_props);
205 INIT_LIST_HEAD(&dev->io_link_props);
206 INIT_LIST_HEAD(&dev->perf_props);
207
208 list_add_tail(&dev->list, device_list);
209
210 return dev;
211}
212
213
214#define sysfs_show_gen_prop(buffer, offs, fmt, ...) \
215 (offs += snprintf(buffer+offs, PAGE_SIZE-offs, \
216 fmt, __VA_ARGS__))
217#define sysfs_show_32bit_prop(buffer, offs, name, value) \
218 sysfs_show_gen_prop(buffer, offs, "%s %u\n", name, value)
219#define sysfs_show_64bit_prop(buffer, offs, name, value) \
220 sysfs_show_gen_prop(buffer, offs, "%s %llu\n", name, value)
221#define sysfs_show_32bit_val(buffer, offs, value) \
222 sysfs_show_gen_prop(buffer, offs, "%u\n", value)
223#define sysfs_show_str_val(buffer, offs, value) \
224 sysfs_show_gen_prop(buffer, offs, "%s\n", value)
225
226static ssize_t sysprops_show(struct kobject *kobj, struct attribute *attr,
227 char *buffer)
228{
229 int offs = 0;
230
231
232 buffer[0] = 0;
233
234 if (attr == &sys_props.attr_genid) {
235 sysfs_show_32bit_val(buffer, offs,
236 sys_props.generation_count);
237 } else if (attr == &sys_props.attr_props) {
238 sysfs_show_64bit_prop(buffer, offs, "platform_oem",
239 sys_props.platform_oem);
240 sysfs_show_64bit_prop(buffer, offs, "platform_id",
241 sys_props.platform_id);
242 sysfs_show_64bit_prop(buffer, offs, "platform_rev",
243 sys_props.platform_rev);
244 } else {
245 offs = -EINVAL;
246 }
247
248 return offs;
249}
250
251static void kfd_topology_kobj_release(struct kobject *kobj)
252{
253 kfree(kobj);
254}
255
256static const struct sysfs_ops sysprops_ops = {
257 .show = sysprops_show,
258};
259
260static struct kobj_type sysprops_type = {
261 .release = kfd_topology_kobj_release,
262 .sysfs_ops = &sysprops_ops,
263};
264
265static ssize_t iolink_show(struct kobject *kobj, struct attribute *attr,
266 char *buffer)
267{
268 int offs = 0;
269 struct kfd_iolink_properties *iolink;
270
271
272 buffer[0] = 0;
273
274 iolink = container_of(attr, struct kfd_iolink_properties, attr);
275 if (iolink->gpu && kfd_devcgroup_check_permission(iolink->gpu))
276 return -EPERM;
277 sysfs_show_32bit_prop(buffer, offs, "type", iolink->iolink_type);
278 sysfs_show_32bit_prop(buffer, offs, "version_major", iolink->ver_maj);
279 sysfs_show_32bit_prop(buffer, offs, "version_minor", iolink->ver_min);
280 sysfs_show_32bit_prop(buffer, offs, "node_from", iolink->node_from);
281 sysfs_show_32bit_prop(buffer, offs, "node_to", iolink->node_to);
282 sysfs_show_32bit_prop(buffer, offs, "weight", iolink->weight);
283 sysfs_show_32bit_prop(buffer, offs, "min_latency", iolink->min_latency);
284 sysfs_show_32bit_prop(buffer, offs, "max_latency", iolink->max_latency);
285 sysfs_show_32bit_prop(buffer, offs, "min_bandwidth",
286 iolink->min_bandwidth);
287 sysfs_show_32bit_prop(buffer, offs, "max_bandwidth",
288 iolink->max_bandwidth);
289 sysfs_show_32bit_prop(buffer, offs, "recommended_transfer_size",
290 iolink->rec_transfer_size);
291 sysfs_show_32bit_prop(buffer, offs, "flags", iolink->flags);
292
293 return offs;
294}
295
296static const struct sysfs_ops iolink_ops = {
297 .show = iolink_show,
298};
299
300static struct kobj_type iolink_type = {
301 .release = kfd_topology_kobj_release,
302 .sysfs_ops = &iolink_ops,
303};
304
305static ssize_t mem_show(struct kobject *kobj, struct attribute *attr,
306 char *buffer)
307{
308 int offs = 0;
309 struct kfd_mem_properties *mem;
310
311
312 buffer[0] = 0;
313
314 mem = container_of(attr, struct kfd_mem_properties, attr);
315 if (mem->gpu && kfd_devcgroup_check_permission(mem->gpu))
316 return -EPERM;
317 sysfs_show_32bit_prop(buffer, offs, "heap_type", mem->heap_type);
318 sysfs_show_64bit_prop(buffer, offs, "size_in_bytes",
319 mem->size_in_bytes);
320 sysfs_show_32bit_prop(buffer, offs, "flags", mem->flags);
321 sysfs_show_32bit_prop(buffer, offs, "width", mem->width);
322 sysfs_show_32bit_prop(buffer, offs, "mem_clk_max",
323 mem->mem_clk_max);
324
325 return offs;
326}
327
328static const struct sysfs_ops mem_ops = {
329 .show = mem_show,
330};
331
332static struct kobj_type mem_type = {
333 .release = kfd_topology_kobj_release,
334 .sysfs_ops = &mem_ops,
335};
336
337static ssize_t kfd_cache_show(struct kobject *kobj, struct attribute *attr,
338 char *buffer)
339{
340 int offs = 0;
341 uint32_t i, j;
342 struct kfd_cache_properties *cache;
343
344
345 buffer[0] = 0;
346
347 cache = container_of(attr, struct kfd_cache_properties, attr);
348 if (cache->gpu && kfd_devcgroup_check_permission(cache->gpu))
349 return -EPERM;
350 sysfs_show_32bit_prop(buffer, offs, "processor_id_low",
351 cache->processor_id_low);
352 sysfs_show_32bit_prop(buffer, offs, "level", cache->cache_level);
353 sysfs_show_32bit_prop(buffer, offs, "size", cache->cache_size);
354 sysfs_show_32bit_prop(buffer, offs, "cache_line_size",
355 cache->cacheline_size);
356 sysfs_show_32bit_prop(buffer, offs, "cache_lines_per_tag",
357 cache->cachelines_per_tag);
358 sysfs_show_32bit_prop(buffer, offs, "association", cache->cache_assoc);
359 sysfs_show_32bit_prop(buffer, offs, "latency", cache->cache_latency);
360 sysfs_show_32bit_prop(buffer, offs, "type", cache->cache_type);
361 offs += snprintf(buffer+offs, PAGE_SIZE-offs, "sibling_map ");
362 for (i = 0; i < CRAT_SIBLINGMAP_SIZE; i++)
363 for (j = 0; j < sizeof(cache->sibling_map[0])*8; j++)
364
365 offs += snprintf(buffer+offs, PAGE_SIZE-offs, "%d,",
366 (cache->sibling_map[i] >> j) & 1);
367
368
369 buffer[offs-1] = '\n';
370 return offs;
371}
372
373static const struct sysfs_ops cache_ops = {
374 .show = kfd_cache_show,
375};
376
377static struct kobj_type cache_type = {
378 .release = kfd_topology_kobj_release,
379 .sysfs_ops = &cache_ops,
380};
381
382
383
384struct kfd_perf_attr {
385 struct kobj_attribute attr;
386 uint32_t data;
387};
388
389static ssize_t perf_show(struct kobject *kobj, struct kobj_attribute *attrs,
390 char *buf)
391{
392 int offs = 0;
393 struct kfd_perf_attr *attr;
394
395 buf[0] = 0;
396 attr = container_of(attrs, struct kfd_perf_attr, attr);
397 if (!attr->data)
398 return 0;
399 else
400 return sysfs_show_32bit_val(buf, offs, attr->data);
401}
402
403#define KFD_PERF_DESC(_name, _data) \
404{ \
405 .attr = __ATTR(_name, 0444, perf_show, NULL), \
406 .data = _data, \
407}
408
409static struct kfd_perf_attr perf_attr_iommu[] = {
410 KFD_PERF_DESC(max_concurrent, 0),
411 KFD_PERF_DESC(num_counters, 0),
412 KFD_PERF_DESC(counter_ids, 0),
413};
414
415
416static ssize_t node_show(struct kobject *kobj, struct attribute *attr,
417 char *buffer)
418{
419 int offs = 0;
420 struct kfd_topology_device *dev;
421 uint32_t log_max_watch_addr;
422
423
424 buffer[0] = 0;
425
426 if (strcmp(attr->name, "gpu_id") == 0) {
427 dev = container_of(attr, struct kfd_topology_device,
428 attr_gpuid);
429 if (dev->gpu && kfd_devcgroup_check_permission(dev->gpu))
430 return -EPERM;
431 return sysfs_show_32bit_val(buffer, offs, dev->gpu_id);
432 }
433
434 if (strcmp(attr->name, "name") == 0) {
435 dev = container_of(attr, struct kfd_topology_device,
436 attr_name);
437
438 if (dev->gpu && kfd_devcgroup_check_permission(dev->gpu))
439 return -EPERM;
440 return sysfs_show_str_val(buffer, offs, dev->node_props.name);
441 }
442
443 dev = container_of(attr, struct kfd_topology_device,
444 attr_props);
445 if (dev->gpu && kfd_devcgroup_check_permission(dev->gpu))
446 return -EPERM;
447 sysfs_show_32bit_prop(buffer, offs, "cpu_cores_count",
448 dev->node_props.cpu_cores_count);
449 sysfs_show_32bit_prop(buffer, offs, "simd_count",
450 dev->gpu ? dev->node_props.simd_count : 0);
451 sysfs_show_32bit_prop(buffer, offs, "mem_banks_count",
452 dev->node_props.mem_banks_count);
453 sysfs_show_32bit_prop(buffer, offs, "caches_count",
454 dev->node_props.caches_count);
455 sysfs_show_32bit_prop(buffer, offs, "io_links_count",
456 dev->node_props.io_links_count);
457 sysfs_show_32bit_prop(buffer, offs, "cpu_core_id_base",
458 dev->node_props.cpu_core_id_base);
459 sysfs_show_32bit_prop(buffer, offs, "simd_id_base",
460 dev->node_props.simd_id_base);
461 sysfs_show_32bit_prop(buffer, offs, "max_waves_per_simd",
462 dev->node_props.max_waves_per_simd);
463 sysfs_show_32bit_prop(buffer, offs, "lds_size_in_kb",
464 dev->node_props.lds_size_in_kb);
465 sysfs_show_32bit_prop(buffer, offs, "gds_size_in_kb",
466 dev->node_props.gds_size_in_kb);
467 sysfs_show_32bit_prop(buffer, offs, "num_gws",
468 dev->node_props.num_gws);
469 sysfs_show_32bit_prop(buffer, offs, "wave_front_size",
470 dev->node_props.wave_front_size);
471 sysfs_show_32bit_prop(buffer, offs, "array_count",
472 dev->node_props.array_count);
473 sysfs_show_32bit_prop(buffer, offs, "simd_arrays_per_engine",
474 dev->node_props.simd_arrays_per_engine);
475 sysfs_show_32bit_prop(buffer, offs, "cu_per_simd_array",
476 dev->node_props.cu_per_simd_array);
477 sysfs_show_32bit_prop(buffer, offs, "simd_per_cu",
478 dev->node_props.simd_per_cu);
479 sysfs_show_32bit_prop(buffer, offs, "max_slots_scratch_cu",
480 dev->node_props.max_slots_scratch_cu);
481 sysfs_show_32bit_prop(buffer, offs, "gfx_target_version",
482 dev->node_props.gfx_target_version);
483 sysfs_show_32bit_prop(buffer, offs, "vendor_id",
484 dev->node_props.vendor_id);
485 sysfs_show_32bit_prop(buffer, offs, "device_id",
486 dev->node_props.device_id);
487 sysfs_show_32bit_prop(buffer, offs, "location_id",
488 dev->node_props.location_id);
489 sysfs_show_32bit_prop(buffer, offs, "domain",
490 dev->node_props.domain);
491 sysfs_show_32bit_prop(buffer, offs, "drm_render_minor",
492 dev->node_props.drm_render_minor);
493 sysfs_show_64bit_prop(buffer, offs, "hive_id",
494 dev->node_props.hive_id);
495 sysfs_show_32bit_prop(buffer, offs, "num_sdma_engines",
496 dev->node_props.num_sdma_engines);
497 sysfs_show_32bit_prop(buffer, offs, "num_sdma_xgmi_engines",
498 dev->node_props.num_sdma_xgmi_engines);
499 sysfs_show_32bit_prop(buffer, offs, "num_sdma_queues_per_engine",
500 dev->node_props.num_sdma_queues_per_engine);
501 sysfs_show_32bit_prop(buffer, offs, "num_cp_queues",
502 dev->node_props.num_cp_queues);
503
504 if (dev->gpu) {
505 log_max_watch_addr =
506 __ilog2_u32(dev->gpu->device_info->num_of_watch_points);
507
508 if (log_max_watch_addr) {
509 dev->node_props.capability |=
510 HSA_CAP_WATCH_POINTS_SUPPORTED;
511
512 dev->node_props.capability |=
513 ((log_max_watch_addr <<
514 HSA_CAP_WATCH_POINTS_TOTALBITS_SHIFT) &
515 HSA_CAP_WATCH_POINTS_TOTALBITS_MASK);
516 }
517
518 if (dev->gpu->device_info->asic_family == CHIP_TONGA)
519 dev->node_props.capability |=
520 HSA_CAP_AQL_QUEUE_DOUBLE_MAP;
521
522 sysfs_show_32bit_prop(buffer, offs, "max_engine_clk_fcompute",
523 dev->node_props.max_engine_clk_fcompute);
524
525 sysfs_show_64bit_prop(buffer, offs, "local_mem_size", 0ULL);
526
527 sysfs_show_32bit_prop(buffer, offs, "fw_version",
528 dev->gpu->mec_fw_version);
529 sysfs_show_32bit_prop(buffer, offs, "capability",
530 dev->node_props.capability);
531 sysfs_show_32bit_prop(buffer, offs, "sdma_fw_version",
532 dev->gpu->sdma_fw_version);
533 sysfs_show_64bit_prop(buffer, offs, "unique_id",
534 amdgpu_amdkfd_get_unique_id(dev->gpu->kgd));
535
536 }
537
538 return sysfs_show_32bit_prop(buffer, offs, "max_engine_clk_ccompute",
539 cpufreq_quick_get_max(0)/1000);
540}
541
542static const struct sysfs_ops node_ops = {
543 .show = node_show,
544};
545
546static struct kobj_type node_type = {
547 .release = kfd_topology_kobj_release,
548 .sysfs_ops = &node_ops,
549};
550
551static void kfd_remove_sysfs_file(struct kobject *kobj, struct attribute *attr)
552{
553 sysfs_remove_file(kobj, attr);
554 kobject_del(kobj);
555 kobject_put(kobj);
556}
557
558static void kfd_remove_sysfs_node_entry(struct kfd_topology_device *dev)
559{
560 struct kfd_iolink_properties *iolink;
561 struct kfd_cache_properties *cache;
562 struct kfd_mem_properties *mem;
563 struct kfd_perf_properties *perf;
564
565 if (dev->kobj_iolink) {
566 list_for_each_entry(iolink, &dev->io_link_props, list)
567 if (iolink->kobj) {
568 kfd_remove_sysfs_file(iolink->kobj,
569 &iolink->attr);
570 iolink->kobj = NULL;
571 }
572 kobject_del(dev->kobj_iolink);
573 kobject_put(dev->kobj_iolink);
574 dev->kobj_iolink = NULL;
575 }
576
577 if (dev->kobj_cache) {
578 list_for_each_entry(cache, &dev->cache_props, list)
579 if (cache->kobj) {
580 kfd_remove_sysfs_file(cache->kobj,
581 &cache->attr);
582 cache->kobj = NULL;
583 }
584 kobject_del(dev->kobj_cache);
585 kobject_put(dev->kobj_cache);
586 dev->kobj_cache = NULL;
587 }
588
589 if (dev->kobj_mem) {
590 list_for_each_entry(mem, &dev->mem_props, list)
591 if (mem->kobj) {
592 kfd_remove_sysfs_file(mem->kobj, &mem->attr);
593 mem->kobj = NULL;
594 }
595 kobject_del(dev->kobj_mem);
596 kobject_put(dev->kobj_mem);
597 dev->kobj_mem = NULL;
598 }
599
600 if (dev->kobj_perf) {
601 list_for_each_entry(perf, &dev->perf_props, list) {
602 kfree(perf->attr_group);
603 perf->attr_group = NULL;
604 }
605 kobject_del(dev->kobj_perf);
606 kobject_put(dev->kobj_perf);
607 dev->kobj_perf = NULL;
608 }
609
610 if (dev->kobj_node) {
611 sysfs_remove_file(dev->kobj_node, &dev->attr_gpuid);
612 sysfs_remove_file(dev->kobj_node, &dev->attr_name);
613 sysfs_remove_file(dev->kobj_node, &dev->attr_props);
614 kobject_del(dev->kobj_node);
615 kobject_put(dev->kobj_node);
616 dev->kobj_node = NULL;
617 }
618}
619
620static int kfd_build_sysfs_node_entry(struct kfd_topology_device *dev,
621 uint32_t id)
622{
623 struct kfd_iolink_properties *iolink;
624 struct kfd_cache_properties *cache;
625 struct kfd_mem_properties *mem;
626 struct kfd_perf_properties *perf;
627 int ret;
628 uint32_t i, num_attrs;
629 struct attribute **attrs;
630
631 if (WARN_ON(dev->kobj_node))
632 return -EEXIST;
633
634
635
636
637 dev->kobj_node = kfd_alloc_struct(dev->kobj_node);
638 if (!dev->kobj_node)
639 return -ENOMEM;
640
641 ret = kobject_init_and_add(dev->kobj_node, &node_type,
642 sys_props.kobj_nodes, "%d", id);
643 if (ret < 0) {
644 kobject_put(dev->kobj_node);
645 return ret;
646 }
647
648 dev->kobj_mem = kobject_create_and_add("mem_banks", dev->kobj_node);
649 if (!dev->kobj_mem)
650 return -ENOMEM;
651
652 dev->kobj_cache = kobject_create_and_add("caches", dev->kobj_node);
653 if (!dev->kobj_cache)
654 return -ENOMEM;
655
656 dev->kobj_iolink = kobject_create_and_add("io_links", dev->kobj_node);
657 if (!dev->kobj_iolink)
658 return -ENOMEM;
659
660 dev->kobj_perf = kobject_create_and_add("perf", dev->kobj_node);
661 if (!dev->kobj_perf)
662 return -ENOMEM;
663
664
665
666
667 dev->attr_gpuid.name = "gpu_id";
668 dev->attr_gpuid.mode = KFD_SYSFS_FILE_MODE;
669 sysfs_attr_init(&dev->attr_gpuid);
670 dev->attr_name.name = "name";
671 dev->attr_name.mode = KFD_SYSFS_FILE_MODE;
672 sysfs_attr_init(&dev->attr_name);
673 dev->attr_props.name = "properties";
674 dev->attr_props.mode = KFD_SYSFS_FILE_MODE;
675 sysfs_attr_init(&dev->attr_props);
676 ret = sysfs_create_file(dev->kobj_node, &dev->attr_gpuid);
677 if (ret < 0)
678 return ret;
679 ret = sysfs_create_file(dev->kobj_node, &dev->attr_name);
680 if (ret < 0)
681 return ret;
682 ret = sysfs_create_file(dev->kobj_node, &dev->attr_props);
683 if (ret < 0)
684 return ret;
685
686 i = 0;
687 list_for_each_entry(mem, &dev->mem_props, list) {
688 mem->kobj = kzalloc(sizeof(struct kobject), GFP_KERNEL);
689 if (!mem->kobj)
690 return -ENOMEM;
691 ret = kobject_init_and_add(mem->kobj, &mem_type,
692 dev->kobj_mem, "%d", i);
693 if (ret < 0) {
694 kobject_put(mem->kobj);
695 return ret;
696 }
697
698 mem->attr.name = "properties";
699 mem->attr.mode = KFD_SYSFS_FILE_MODE;
700 sysfs_attr_init(&mem->attr);
701 ret = sysfs_create_file(mem->kobj, &mem->attr);
702 if (ret < 0)
703 return ret;
704 i++;
705 }
706
707 i = 0;
708 list_for_each_entry(cache, &dev->cache_props, list) {
709 cache->kobj = kzalloc(sizeof(struct kobject), GFP_KERNEL);
710 if (!cache->kobj)
711 return -ENOMEM;
712 ret = kobject_init_and_add(cache->kobj, &cache_type,
713 dev->kobj_cache, "%d", i);
714 if (ret < 0) {
715 kobject_put(cache->kobj);
716 return ret;
717 }
718
719 cache->attr.name = "properties";
720 cache->attr.mode = KFD_SYSFS_FILE_MODE;
721 sysfs_attr_init(&cache->attr);
722 ret = sysfs_create_file(cache->kobj, &cache->attr);
723 if (ret < 0)
724 return ret;
725 i++;
726 }
727
728 i = 0;
729 list_for_each_entry(iolink, &dev->io_link_props, list) {
730 iolink->kobj = kzalloc(sizeof(struct kobject), GFP_KERNEL);
731 if (!iolink->kobj)
732 return -ENOMEM;
733 ret = kobject_init_and_add(iolink->kobj, &iolink_type,
734 dev->kobj_iolink, "%d", i);
735 if (ret < 0) {
736 kobject_put(iolink->kobj);
737 return ret;
738 }
739
740 iolink->attr.name = "properties";
741 iolink->attr.mode = KFD_SYSFS_FILE_MODE;
742 sysfs_attr_init(&iolink->attr);
743 ret = sysfs_create_file(iolink->kobj, &iolink->attr);
744 if (ret < 0)
745 return ret;
746 i++;
747 }
748
749
750 num_attrs = ARRAY_SIZE(perf_attr_iommu);
751 list_for_each_entry(perf, &dev->perf_props, list) {
752 perf->attr_group = kzalloc(sizeof(struct kfd_perf_attr)
753 * num_attrs + sizeof(struct attribute_group),
754 GFP_KERNEL);
755 if (!perf->attr_group)
756 return -ENOMEM;
757
758 attrs = (struct attribute **)(perf->attr_group + 1);
759 if (!strcmp(perf->block_name, "iommu")) {
760
761
762
763
764 perf_attr_iommu[0].data = perf->max_concurrent;
765 for (i = 0; i < num_attrs; i++)
766 attrs[i] = &perf_attr_iommu[i].attr.attr;
767 }
768 perf->attr_group->name = perf->block_name;
769 perf->attr_group->attrs = attrs;
770 ret = sysfs_create_group(dev->kobj_perf, perf->attr_group);
771 if (ret < 0)
772 return ret;
773 }
774
775 return 0;
776}
777
778
779static int kfd_build_sysfs_node_tree(void)
780{
781 struct kfd_topology_device *dev;
782 int ret;
783 uint32_t i = 0;
784
785 list_for_each_entry(dev, &topology_device_list, list) {
786 ret = kfd_build_sysfs_node_entry(dev, i);
787 if (ret < 0)
788 return ret;
789 i++;
790 }
791
792 return 0;
793}
794
795
796static void kfd_remove_sysfs_node_tree(void)
797{
798 struct kfd_topology_device *dev;
799
800 list_for_each_entry(dev, &topology_device_list, list)
801 kfd_remove_sysfs_node_entry(dev);
802}
803
804static int kfd_topology_update_sysfs(void)
805{
806 int ret;
807
808 if (!sys_props.kobj_topology) {
809 sys_props.kobj_topology =
810 kfd_alloc_struct(sys_props.kobj_topology);
811 if (!sys_props.kobj_topology)
812 return -ENOMEM;
813
814 ret = kobject_init_and_add(sys_props.kobj_topology,
815 &sysprops_type, &kfd_device->kobj,
816 "topology");
817 if (ret < 0) {
818 kobject_put(sys_props.kobj_topology);
819 return ret;
820 }
821
822 sys_props.kobj_nodes = kobject_create_and_add("nodes",
823 sys_props.kobj_topology);
824 if (!sys_props.kobj_nodes)
825 return -ENOMEM;
826
827 sys_props.attr_genid.name = "generation_id";
828 sys_props.attr_genid.mode = KFD_SYSFS_FILE_MODE;
829 sysfs_attr_init(&sys_props.attr_genid);
830 ret = sysfs_create_file(sys_props.kobj_topology,
831 &sys_props.attr_genid);
832 if (ret < 0)
833 return ret;
834
835 sys_props.attr_props.name = "system_properties";
836 sys_props.attr_props.mode = KFD_SYSFS_FILE_MODE;
837 sysfs_attr_init(&sys_props.attr_props);
838 ret = sysfs_create_file(sys_props.kobj_topology,
839 &sys_props.attr_props);
840 if (ret < 0)
841 return ret;
842 }
843
844 kfd_remove_sysfs_node_tree();
845
846 return kfd_build_sysfs_node_tree();
847}
848
849static void kfd_topology_release_sysfs(void)
850{
851 kfd_remove_sysfs_node_tree();
852 if (sys_props.kobj_topology) {
853 sysfs_remove_file(sys_props.kobj_topology,
854 &sys_props.attr_genid);
855 sysfs_remove_file(sys_props.kobj_topology,
856 &sys_props.attr_props);
857 if (sys_props.kobj_nodes) {
858 kobject_del(sys_props.kobj_nodes);
859 kobject_put(sys_props.kobj_nodes);
860 sys_props.kobj_nodes = NULL;
861 }
862 kobject_del(sys_props.kobj_topology);
863 kobject_put(sys_props.kobj_topology);
864 sys_props.kobj_topology = NULL;
865 }
866}
867
868
869static void kfd_topology_update_device_list(struct list_head *temp_list,
870 struct list_head *master_list)
871{
872 while (!list_empty(temp_list)) {
873 list_move_tail(temp_list->next, master_list);
874 sys_props.num_devices++;
875 }
876}
877
878static void kfd_debug_print_topology(void)
879{
880 struct kfd_topology_device *dev;
881
882 down_read(&topology_lock);
883
884 dev = list_last_entry(&topology_device_list,
885 struct kfd_topology_device, list);
886 if (dev) {
887 if (dev->node_props.cpu_cores_count &&
888 dev->node_props.simd_count) {
889 pr_info("Topology: Add APU node [0x%0x:0x%0x]\n",
890 dev->node_props.device_id,
891 dev->node_props.vendor_id);
892 } else if (dev->node_props.cpu_cores_count)
893 pr_info("Topology: Add CPU node\n");
894 else if (dev->node_props.simd_count)
895 pr_info("Topology: Add dGPU node [0x%0x:0x%0x]\n",
896 dev->node_props.device_id,
897 dev->node_props.vendor_id);
898 }
899 up_read(&topology_lock);
900}
901
902
903
904
905static void kfd_update_system_properties(void)
906{
907 struct kfd_topology_device *dev;
908
909 down_read(&topology_lock);
910 dev = list_last_entry(&topology_device_list,
911 struct kfd_topology_device, list);
912 if (dev) {
913 sys_props.platform_id =
914 (*((uint64_t *)dev->oem_id)) & CRAT_OEMID_64BIT_MASK;
915 sys_props.platform_oem = *((uint64_t *)dev->oem_table_id);
916 sys_props.platform_rev = dev->oem_revision;
917 }
918 up_read(&topology_lock);
919}
920
921static void find_system_memory(const struct dmi_header *dm,
922 void *private)
923{
924 struct kfd_mem_properties *mem;
925 u16 mem_width, mem_clock;
926 struct kfd_topology_device *kdev =
927 (struct kfd_topology_device *)private;
928 const u8 *dmi_data = (const u8 *)(dm + 1);
929
930 if (dm->type == DMI_ENTRY_MEM_DEVICE && dm->length >= 0x15) {
931 mem_width = (u16)(*(const u16 *)(dmi_data + 0x6));
932 mem_clock = (u16)(*(const u16 *)(dmi_data + 0x11));
933 list_for_each_entry(mem, &kdev->mem_props, list) {
934 if (mem_width != 0xFFFF && mem_width != 0)
935 mem->width = mem_width;
936 if (mem_clock != 0)
937 mem->mem_clk_max = mem_clock;
938 }
939 }
940}
941
942
943
944
945
946
947static int kfd_add_perf_to_topology(struct kfd_topology_device *kdev)
948{
949
950 return kfd_iommu_add_perf_counters(kdev);
951}
952
953
954
955
956
957static void kfd_add_non_crat_information(struct kfd_topology_device *kdev)
958{
959
960 if (!kdev->gpu) {
961
962 dmi_walk(find_system_memory, kdev);
963 }
964
965}
966
967
968
969
970
971
972
973static bool kfd_is_acpi_crat_invalid(struct list_head *device_list)
974{
975 struct kfd_topology_device *dev;
976
977 list_for_each_entry(dev, device_list, list) {
978 if (dev->node_props.cpu_cores_count &&
979 dev->node_props.simd_count)
980 return false;
981 }
982 pr_info("Ignoring ACPI CRAT on non-APU system\n");
983 return true;
984}
985
986int kfd_topology_init(void)
987{
988 void *crat_image = NULL;
989 size_t image_size = 0;
990 int ret;
991 struct list_head temp_topology_device_list;
992 int cpu_only_node = 0;
993 struct kfd_topology_device *kdev;
994 int proximity_domain;
995
996
997
998
999
1000
1001
1002
1003 INIT_LIST_HEAD(&topology_device_list);
1004 INIT_LIST_HEAD(&temp_topology_device_list);
1005 init_rwsem(&topology_lock);
1006
1007 memset(&sys_props, 0, sizeof(sys_props));
1008
1009
1010
1011
1012
1013
1014 proximity_domain = 0;
1015
1016
1017
1018
1019
1020
1021
1022 ret = kfd_create_crat_image_acpi(&crat_image, &image_size);
1023 if (!ret) {
1024 ret = kfd_parse_crat_table(crat_image,
1025 &temp_topology_device_list,
1026 proximity_domain);
1027 if (ret ||
1028 kfd_is_acpi_crat_invalid(&temp_topology_device_list)) {
1029 kfd_release_topology_device_list(
1030 &temp_topology_device_list);
1031 kfd_destroy_crat_image(crat_image);
1032 crat_image = NULL;
1033 }
1034 }
1035
1036 if (!crat_image) {
1037 ret = kfd_create_crat_image_virtual(&crat_image, &image_size,
1038 COMPUTE_UNIT_CPU, NULL,
1039 proximity_domain);
1040 cpu_only_node = 1;
1041 if (ret) {
1042 pr_err("Error creating VCRAT table for CPU\n");
1043 return ret;
1044 }
1045
1046 ret = kfd_parse_crat_table(crat_image,
1047 &temp_topology_device_list,
1048 proximity_domain);
1049 if (ret) {
1050 pr_err("Error parsing VCRAT table for CPU\n");
1051 goto err;
1052 }
1053 }
1054
1055 kdev = list_first_entry(&temp_topology_device_list,
1056 struct kfd_topology_device, list);
1057 kfd_add_perf_to_topology(kdev);
1058
1059 down_write(&topology_lock);
1060 kfd_topology_update_device_list(&temp_topology_device_list,
1061 &topology_device_list);
1062 atomic_set(&topology_crat_proximity_domain, sys_props.num_devices-1);
1063 ret = kfd_topology_update_sysfs();
1064 up_write(&topology_lock);
1065
1066 if (!ret) {
1067 sys_props.generation_count++;
1068 kfd_update_system_properties();
1069 kfd_debug_print_topology();
1070 } else
1071 pr_err("Failed to update topology in sysfs ret=%d\n", ret);
1072
1073
1074
1075
1076 if (cpu_only_node) {
1077
1078 down_write(&topology_lock);
1079 kdev = list_first_entry(&topology_device_list,
1080 struct kfd_topology_device, list);
1081 up_write(&topology_lock);
1082 kfd_add_non_crat_information(kdev);
1083 }
1084
1085err:
1086 kfd_destroy_crat_image(crat_image);
1087 return ret;
1088}
1089
1090void kfd_topology_shutdown(void)
1091{
1092 down_write(&topology_lock);
1093 kfd_topology_release_sysfs();
1094 kfd_release_live_view();
1095 up_write(&topology_lock);
1096}
1097
1098static uint32_t kfd_generate_gpu_id(struct kfd_dev *gpu)
1099{
1100 uint32_t hashout;
1101 uint32_t buf[7];
1102 uint64_t local_mem_size;
1103 int i;
1104 struct kfd_local_mem_info local_mem_info;
1105
1106 if (!gpu)
1107 return 0;
1108
1109 amdgpu_amdkfd_get_local_mem_info(gpu->kgd, &local_mem_info);
1110
1111 local_mem_size = local_mem_info.local_mem_size_private +
1112 local_mem_info.local_mem_size_public;
1113
1114 buf[0] = gpu->pdev->devfn;
1115 buf[1] = gpu->pdev->subsystem_vendor |
1116 (gpu->pdev->subsystem_device << 16);
1117 buf[2] = pci_domain_nr(gpu->pdev->bus);
1118 buf[3] = gpu->pdev->device;
1119 buf[4] = gpu->pdev->bus->number;
1120 buf[5] = lower_32_bits(local_mem_size);
1121 buf[6] = upper_32_bits(local_mem_size);
1122
1123 for (i = 0, hashout = 0; i < 7; i++)
1124 hashout ^= hash_32(buf[i], KFD_GPU_ID_HASH_WIDTH);
1125
1126 return hashout;
1127}
1128
1129
1130
1131
1132
1133static struct kfd_topology_device *kfd_assign_gpu(struct kfd_dev *gpu)
1134{
1135 struct kfd_topology_device *dev;
1136 struct kfd_topology_device *out_dev = NULL;
1137 struct kfd_mem_properties *mem;
1138 struct kfd_cache_properties *cache;
1139 struct kfd_iolink_properties *iolink;
1140
1141 down_write(&topology_lock);
1142 list_for_each_entry(dev, &topology_device_list, list) {
1143
1144
1145
1146 if (!gpu->use_iommu_v2 &&
1147 dev->node_props.cpu_cores_count)
1148 continue;
1149
1150 if (!dev->gpu && (dev->node_props.simd_count > 0)) {
1151 dev->gpu = gpu;
1152 out_dev = dev;
1153
1154 list_for_each_entry(mem, &dev->mem_props, list)
1155 mem->gpu = dev->gpu;
1156 list_for_each_entry(cache, &dev->cache_props, list)
1157 cache->gpu = dev->gpu;
1158 list_for_each_entry(iolink, &dev->io_link_props, list)
1159 iolink->gpu = dev->gpu;
1160 break;
1161 }
1162 }
1163 up_write(&topology_lock);
1164 return out_dev;
1165}
1166
1167static void kfd_notify_gpu_change(uint32_t gpu_id, int arrival)
1168{
1169
1170
1171
1172
1173}
1174
1175
1176
1177
1178static void kfd_fill_mem_clk_max_info(struct kfd_topology_device *dev)
1179{
1180 struct kfd_mem_properties *mem;
1181 struct kfd_local_mem_info local_mem_info;
1182
1183 if (!dev)
1184 return;
1185
1186
1187
1188
1189
1190
1191
1192 amdgpu_amdkfd_get_local_mem_info(dev->gpu->kgd, &local_mem_info);
1193
1194 list_for_each_entry(mem, &dev->mem_props, list)
1195 mem->mem_clk_max = local_mem_info.mem_clk_max;
1196}
1197
1198static void kfd_set_iolink_no_atomics(struct kfd_topology_device *dev,
1199 struct kfd_topology_device *target_gpu_dev,
1200 struct kfd_iolink_properties *link)
1201{
1202
1203 if (link->iolink_type == CRAT_IOLINK_TYPE_XGMI)
1204 return;
1205
1206
1207 if (target_gpu_dev) {
1208 uint32_t cap;
1209
1210 pcie_capability_read_dword(target_gpu_dev->gpu->pdev,
1211 PCI_EXP_DEVCAP2, &cap);
1212
1213 if (!(cap & (PCI_EXP_DEVCAP2_ATOMIC_COMP32 |
1214 PCI_EXP_DEVCAP2_ATOMIC_COMP64)))
1215 link->flags |= CRAT_IOLINK_FLAGS_NO_ATOMICS_32_BIT |
1216 CRAT_IOLINK_FLAGS_NO_ATOMICS_64_BIT;
1217
1218 } else {
1219 if (!dev->gpu->pci_atomic_requested ||
1220 dev->gpu->device_info->asic_family ==
1221 CHIP_HAWAII)
1222 link->flags |= CRAT_IOLINK_FLAGS_NO_ATOMICS_32_BIT |
1223 CRAT_IOLINK_FLAGS_NO_ATOMICS_64_BIT;
1224 }
1225}
1226
1227static void kfd_set_iolink_non_coherent(struct kfd_topology_device *to_dev,
1228 struct kfd_iolink_properties *outbound_link,
1229 struct kfd_iolink_properties *inbound_link)
1230{
1231
1232 if (!to_dev->gpu &&
1233 inbound_link->iolink_type == CRAT_IOLINK_TYPE_PCIEXPRESS)
1234 inbound_link->flags |= CRAT_IOLINK_FLAGS_NON_COHERENT;
1235
1236 if (to_dev->gpu) {
1237
1238
1239
1240 if (inbound_link->iolink_type == CRAT_IOLINK_TYPE_PCIEXPRESS ||
1241 (inbound_link->iolink_type == CRAT_IOLINK_TYPE_XGMI &&
1242 to_dev->gpu->device_info->asic_family == CHIP_VEGA20)) {
1243 outbound_link->flags |= CRAT_IOLINK_FLAGS_NON_COHERENT;
1244 inbound_link->flags |= CRAT_IOLINK_FLAGS_NON_COHERENT;
1245 }
1246 }
1247}
1248
1249static void kfd_fill_iolink_non_crat_info(struct kfd_topology_device *dev)
1250{
1251 struct kfd_iolink_properties *link, *inbound_link;
1252 struct kfd_topology_device *peer_dev;
1253
1254 if (!dev || !dev->gpu)
1255 return;
1256
1257
1258 list_for_each_entry(link, &dev->io_link_props, list) {
1259 link->flags = CRAT_IOLINK_FLAGS_ENABLED;
1260 kfd_set_iolink_no_atomics(dev, NULL, link);
1261 peer_dev = kfd_topology_device_by_proximity_domain(
1262 link->node_to);
1263
1264 if (!peer_dev)
1265 continue;
1266
1267 list_for_each_entry(inbound_link, &peer_dev->io_link_props,
1268 list) {
1269 if (inbound_link->node_to != link->node_from)
1270 continue;
1271
1272 inbound_link->flags = CRAT_IOLINK_FLAGS_ENABLED;
1273 kfd_set_iolink_no_atomics(peer_dev, dev, inbound_link);
1274 kfd_set_iolink_non_coherent(peer_dev, link, inbound_link);
1275 }
1276 }
1277}
1278
1279int kfd_topology_add_device(struct kfd_dev *gpu)
1280{
1281 uint32_t gpu_id;
1282 struct kfd_topology_device *dev;
1283 struct kfd_cu_info cu_info;
1284 int res = 0;
1285 struct list_head temp_topology_device_list;
1286 void *crat_image = NULL;
1287 size_t image_size = 0;
1288 int proximity_domain;
1289 struct amdgpu_device *adev;
1290
1291 INIT_LIST_HEAD(&temp_topology_device_list);
1292
1293 gpu_id = kfd_generate_gpu_id(gpu);
1294
1295 pr_debug("Adding new GPU (ID: 0x%x) to topology\n", gpu_id);
1296
1297 proximity_domain = atomic_inc_return(&topology_crat_proximity_domain);
1298
1299
1300
1301
1302
1303
1304
1305 dev = kfd_assign_gpu(gpu);
1306 if (!dev) {
1307 res = kfd_create_crat_image_virtual(&crat_image, &image_size,
1308 COMPUTE_UNIT_GPU, gpu,
1309 proximity_domain);
1310 if (res) {
1311 pr_err("Error creating VCRAT for GPU (ID: 0x%x)\n",
1312 gpu_id);
1313 return res;
1314 }
1315 res = kfd_parse_crat_table(crat_image,
1316 &temp_topology_device_list,
1317 proximity_domain);
1318 if (res) {
1319 pr_err("Error parsing VCRAT for GPU (ID: 0x%x)\n",
1320 gpu_id);
1321 goto err;
1322 }
1323
1324 down_write(&topology_lock);
1325 kfd_topology_update_device_list(&temp_topology_device_list,
1326 &topology_device_list);
1327
1328
1329
1330
1331 res = kfd_topology_update_sysfs();
1332 up_write(&topology_lock);
1333
1334 if (!res)
1335 sys_props.generation_count++;
1336 else
1337 pr_err("Failed to update GPU (ID: 0x%x) to sysfs topology. res=%d\n",
1338 gpu_id, res);
1339 dev = kfd_assign_gpu(gpu);
1340 if (WARN_ON(!dev)) {
1341 res = -ENODEV;
1342 goto err;
1343 }
1344 }
1345
1346 dev->gpu_id = gpu_id;
1347 gpu->id = gpu_id;
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357 amdgpu_amdkfd_get_cu_info(dev->gpu->kgd, &cu_info);
1358
1359 strncpy(dev->node_props.name, gpu->device_info->asic_name,
1360 KFD_TOPOLOGY_PUBLIC_NAME_SIZE);
1361
1362 dev->node_props.simd_arrays_per_engine =
1363 cu_info.num_shader_arrays_per_engine;
1364
1365 dev->node_props.gfx_target_version = gpu->device_info->gfx_target_version;
1366 dev->node_props.vendor_id = gpu->pdev->vendor;
1367 dev->node_props.device_id = gpu->pdev->device;
1368 dev->node_props.capability |=
1369 ((amdgpu_amdkfd_get_asic_rev_id(dev->gpu->kgd) <<
1370 HSA_CAP_ASIC_REVISION_SHIFT) &
1371 HSA_CAP_ASIC_REVISION_MASK);
1372 dev->node_props.location_id = pci_dev_id(gpu->pdev);
1373 dev->node_props.domain = pci_domain_nr(gpu->pdev->bus);
1374 dev->node_props.max_engine_clk_fcompute =
1375 amdgpu_amdkfd_get_max_engine_clock_in_mhz(dev->gpu->kgd);
1376 dev->node_props.max_engine_clk_ccompute =
1377 cpufreq_quick_get_max(0) / 1000;
1378 dev->node_props.drm_render_minor =
1379 gpu->shared_resources.drm_render_minor;
1380
1381 dev->node_props.hive_id = gpu->hive_id;
1382 dev->node_props.num_sdma_engines = gpu->device_info->num_sdma_engines;
1383 dev->node_props.num_sdma_xgmi_engines =
1384 gpu->device_info->num_xgmi_sdma_engines;
1385 dev->node_props.num_sdma_queues_per_engine =
1386 gpu->device_info->num_sdma_queues_per_engine;
1387 dev->node_props.num_gws = (dev->gpu->gws &&
1388 dev->gpu->dqm->sched_policy != KFD_SCHED_POLICY_NO_HWS) ?
1389 amdgpu_amdkfd_get_num_gws(dev->gpu->kgd) : 0;
1390 dev->node_props.num_cp_queues = get_cp_queues_num(dev->gpu->dqm);
1391
1392 kfd_fill_mem_clk_max_info(dev);
1393 kfd_fill_iolink_non_crat_info(dev);
1394
1395 switch (dev->gpu->device_info->asic_family) {
1396 case CHIP_KAVERI:
1397 case CHIP_HAWAII:
1398 case CHIP_TONGA:
1399 dev->node_props.capability |= ((HSA_CAP_DOORBELL_TYPE_PRE_1_0 <<
1400 HSA_CAP_DOORBELL_TYPE_TOTALBITS_SHIFT) &
1401 HSA_CAP_DOORBELL_TYPE_TOTALBITS_MASK);
1402 break;
1403 case CHIP_CARRIZO:
1404 case CHIP_FIJI:
1405 case CHIP_POLARIS10:
1406 case CHIP_POLARIS11:
1407 case CHIP_POLARIS12:
1408 case CHIP_VEGAM:
1409 pr_debug("Adding doorbell packet type capability\n");
1410 dev->node_props.capability |= ((HSA_CAP_DOORBELL_TYPE_1_0 <<
1411 HSA_CAP_DOORBELL_TYPE_TOTALBITS_SHIFT) &
1412 HSA_CAP_DOORBELL_TYPE_TOTALBITS_MASK);
1413 break;
1414 case CHIP_VEGA10:
1415 case CHIP_VEGA12:
1416 case CHIP_VEGA20:
1417 case CHIP_RAVEN:
1418 case CHIP_RENOIR:
1419 case CHIP_ARCTURUS:
1420 case CHIP_ALDEBARAN:
1421 case CHIP_NAVI10:
1422 case CHIP_NAVI12:
1423 case CHIP_NAVI14:
1424 case CHIP_SIENNA_CICHLID:
1425 case CHIP_NAVY_FLOUNDER:
1426 case CHIP_VANGOGH:
1427 case CHIP_DIMGREY_CAVEFISH:
1428 case CHIP_BEIGE_GOBY:
1429 case CHIP_YELLOW_CARP:
1430 case CHIP_CYAN_SKILLFISH:
1431 dev->node_props.capability |= ((HSA_CAP_DOORBELL_TYPE_2_0 <<
1432 HSA_CAP_DOORBELL_TYPE_TOTALBITS_SHIFT) &
1433 HSA_CAP_DOORBELL_TYPE_TOTALBITS_MASK);
1434 break;
1435 default:
1436 WARN(1, "Unexpected ASIC family %u",
1437 dev->gpu->device_info->asic_family);
1438 }
1439
1440
1441
1442
1443
1444 if (dev->gpu->use_iommu_v2)
1445 dev->node_props.capability |= HSA_CAP_ATS_PRESENT;
1446 else
1447 dev->node_props.capability &= ~HSA_CAP_ATS_PRESENT;
1448
1449
1450
1451
1452
1453
1454 if (dev->gpu->device_info->asic_family == CHIP_CARRIZO) {
1455 dev->node_props.simd_count =
1456 cu_info.simd_per_cu * cu_info.cu_active_number;
1457 dev->node_props.max_waves_per_simd = 10;
1458 }
1459
1460 adev = (struct amdgpu_device *)(dev->gpu->kgd);
1461
1462 dev->node_props.capability |=
1463 ((adev->ras_enabled & BIT(AMDGPU_RAS_BLOCK__GFX)) != 0) ?
1464 HSA_CAP_SRAM_EDCSUPPORTED : 0;
1465 dev->node_props.capability |= ((adev->ras_enabled & BIT(AMDGPU_RAS_BLOCK__UMC)) != 0) ?
1466 HSA_CAP_MEM_EDCSUPPORTED : 0;
1467
1468 if (adev->asic_type != CHIP_VEGA10)
1469 dev->node_props.capability |= (adev->ras_enabled != 0) ?
1470 HSA_CAP_RASEVENTNOTIFY : 0;
1471
1472 if (KFD_IS_SVM_API_SUPPORTED(adev->kfd.dev))
1473 dev->node_props.capability |= HSA_CAP_SVMAPI_SUPPORTED;
1474
1475 kfd_debug_print_topology();
1476
1477 if (!res)
1478 kfd_notify_gpu_change(gpu_id, 1);
1479err:
1480 kfd_destroy_crat_image(crat_image);
1481 return res;
1482}
1483
1484int kfd_topology_remove_device(struct kfd_dev *gpu)
1485{
1486 struct kfd_topology_device *dev, *tmp;
1487 uint32_t gpu_id;
1488 int res = -ENODEV;
1489
1490 down_write(&topology_lock);
1491
1492 list_for_each_entry_safe(dev, tmp, &topology_device_list, list)
1493 if (dev->gpu == gpu) {
1494 gpu_id = dev->gpu_id;
1495 kfd_remove_sysfs_node_entry(dev);
1496 kfd_release_topology_device(dev);
1497 sys_props.num_devices--;
1498 res = 0;
1499 if (kfd_topology_update_sysfs() < 0)
1500 kfd_topology_release_sysfs();
1501 break;
1502 }
1503
1504 up_write(&topology_lock);
1505
1506 if (!res)
1507 kfd_notify_gpu_change(gpu_id, 0);
1508
1509 return res;
1510}
1511
1512
1513
1514
1515
1516
1517
1518int kfd_topology_enum_kfd_devices(uint8_t idx, struct kfd_dev **kdev)
1519{
1520
1521 struct kfd_topology_device *top_dev;
1522 uint8_t device_idx = 0;
1523
1524 *kdev = NULL;
1525 down_read(&topology_lock);
1526
1527 list_for_each_entry(top_dev, &topology_device_list, list) {
1528 if (device_idx == idx) {
1529 *kdev = top_dev->gpu;
1530 up_read(&topology_lock);
1531 return 0;
1532 }
1533
1534 device_idx++;
1535 }
1536
1537 up_read(&topology_lock);
1538
1539 return -1;
1540
1541}
1542
1543static int kfd_cpumask_to_apic_id(const struct cpumask *cpumask)
1544{
1545 int first_cpu_of_numa_node;
1546
1547 if (!cpumask || cpumask == cpu_none_mask)
1548 return -1;
1549 first_cpu_of_numa_node = cpumask_first(cpumask);
1550 if (first_cpu_of_numa_node >= nr_cpu_ids)
1551 return -1;
1552#ifdef CONFIG_X86_64
1553 return cpu_data(first_cpu_of_numa_node).apicid;
1554#else
1555 return first_cpu_of_numa_node;
1556#endif
1557}
1558
1559
1560
1561
1562
1563int kfd_numa_node_to_apic_id(int numa_node_id)
1564{
1565 if (numa_node_id == -1) {
1566 pr_warn("Invalid NUMA Node. Use online CPU mask\n");
1567 return kfd_cpumask_to_apic_id(cpu_online_mask);
1568 }
1569 return kfd_cpumask_to_apic_id(cpumask_of_node(numa_node_id));
1570}
1571
1572void kfd_double_confirm_iommu_support(struct kfd_dev *gpu)
1573{
1574 struct kfd_topology_device *dev;
1575
1576 gpu->use_iommu_v2 = false;
1577
1578 if (!gpu->device_info->needs_iommu_device)
1579 return;
1580
1581 down_read(&topology_lock);
1582
1583
1584
1585
1586 list_for_each_entry(dev, &topology_device_list, list)
1587 if (dev->node_props.cpu_cores_count &&
1588 dev->node_props.simd_count &&
1589 !dev->gpu)
1590 gpu->use_iommu_v2 = true;
1591
1592 up_read(&topology_lock);
1593}
1594
1595#if defined(CONFIG_DEBUG_FS)
1596
1597int kfd_debugfs_hqds_by_device(struct seq_file *m, void *data)
1598{
1599 struct kfd_topology_device *dev;
1600 unsigned int i = 0;
1601 int r = 0;
1602
1603 down_read(&topology_lock);
1604
1605 list_for_each_entry(dev, &topology_device_list, list) {
1606 if (!dev->gpu) {
1607 i++;
1608 continue;
1609 }
1610
1611 seq_printf(m, "Node %u, gpu_id %x:\n", i++, dev->gpu->id);
1612 r = dqm_debugfs_hqds(m, dev->gpu->dqm);
1613 if (r)
1614 break;
1615 }
1616
1617 up_read(&topology_lock);
1618
1619 return r;
1620}
1621
1622int kfd_debugfs_rls_by_device(struct seq_file *m, void *data)
1623{
1624 struct kfd_topology_device *dev;
1625 unsigned int i = 0;
1626 int r = 0;
1627
1628 down_read(&topology_lock);
1629
1630 list_for_each_entry(dev, &topology_device_list, list) {
1631 if (!dev->gpu) {
1632 i++;
1633 continue;
1634 }
1635
1636 seq_printf(m, "Node %u, gpu_id %x:\n", i++, dev->gpu->id);
1637 r = pm_debugfs_runlist(m, &dev->gpu->dqm->packet_mgr);
1638 if (r)
1639 break;
1640 }
1641
1642 up_read(&topology_lock);
1643
1644 return r;
1645}
1646
1647#endif
1648