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d87f36a0 | 1 | // SPDX-License-Identifier: GPL-2.0 OR MIT |
5b5c4e40 | 2 | /* |
d87f36a0 | 3 | * Copyright 2014-2022 Advanced Micro Devices, Inc. |
5b5c4e40 EP |
4 | * |
5 | * Permission is hereby granted, free of charge, to any person obtaining a | |
6 | * copy of this software and associated documentation files (the "Software"), | |
7 | * to deal in the Software without restriction, including without limitation | |
8 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
9 | * and/or sell copies of the Software, and to permit persons to whom the | |
10 | * Software is furnished to do so, subject to the following conditions: | |
11 | * | |
12 | * The above copyright notice and this permission notice shall be included in | |
13 | * all copies or substantial portions of the Software. | |
14 | * | |
15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
16 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
18 | * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR | |
19 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, | |
20 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR | |
21 | * OTHER DEALINGS IN THE SOFTWARE. | |
22 | */ | |
23 | ||
24 | #include <linux/types.h> | |
25 | #include <linux/kernel.h> | |
26 | #include <linux/pci.h> | |
27 | #include <linux/errno.h> | |
28 | #include <linux/acpi.h> | |
29 | #include <linux/hash.h> | |
30 | #include <linux/cpufreq.h> | |
f7c826ad | 31 | #include <linux/log2.h> |
520b8fb7 FK |
32 | #include <linux/dmi.h> |
33 | #include <linux/atomic.h> | |
5b5c4e40 EP |
34 | |
35 | #include "kfd_priv.h" | |
36 | #include "kfd_crat.h" | |
37 | #include "kfd_topology.h" | |
851a645e | 38 | #include "kfd_device_queue_manager.h" |
64d1c3a4 | 39 | #include "kfd_iommu.h" |
5a75ea56 | 40 | #include "kfd_svm.h" |
5b87245f | 41 | #include "amdgpu_amdkfd.h" |
0dee45a2 | 42 | #include "amdgpu_ras.h" |
0f28cca8 | 43 | #include "amdgpu.h" |
5b5c4e40 | 44 | |
4f449311 HK |
45 | /* topology_device_list - Master list of all topology devices */ |
46 | static struct list_head topology_device_list; | |
520b8fb7 | 47 | static struct kfd_system_properties sys_props; |
5b5c4e40 EP |
48 | |
49 | static DECLARE_RWSEM(topology_lock); | |
46d18d51 | 50 | static uint32_t topology_crat_proximity_domain; |
5b5c4e40 | 51 | |
46d18d51 | 52 | struct kfd_topology_device *kfd_topology_device_by_proximity_domain_no_lock( |
3a87177e HK |
53 | uint32_t proximity_domain) |
54 | { | |
55 | struct kfd_topology_device *top_dev; | |
56 | struct kfd_topology_device *device = NULL; | |
57 | ||
3a87177e HK |
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 | ||
46d18d51 MJ |
64 | return device; |
65 | } | |
66 | ||
67 | struct kfd_topology_device *kfd_topology_device_by_proximity_domain( | |
68 | uint32_t proximity_domain) | |
69 | { | |
70 | struct kfd_topology_device *device = NULL; | |
71 | ||
72 | down_read(&topology_lock); | |
73 | ||
74 | device = kfd_topology_device_by_proximity_domain_no_lock( | |
75 | proximity_domain); | |
3a87177e HK |
76 | up_read(&topology_lock); |
77 | ||
78 | return device; | |
79 | } | |
80 | ||
44d8cc6f | 81 | struct kfd_topology_device *kfd_topology_device_by_id(uint32_t gpu_id) |
5b5c4e40 | 82 | { |
44d8cc6f YZ |
83 | struct kfd_topology_device *top_dev = NULL; |
84 | struct kfd_topology_device *ret = NULL; | |
5b5c4e40 EP |
85 | |
86 | down_read(&topology_lock); | |
87 | ||
88 | list_for_each_entry(top_dev, &topology_device_list, list) | |
89 | if (top_dev->gpu_id == gpu_id) { | |
44d8cc6f | 90 | ret = top_dev; |
5b5c4e40 EP |
91 | break; |
92 | } | |
93 | ||
94 | up_read(&topology_lock); | |
95 | ||
44d8cc6f YZ |
96 | return ret; |
97 | } | |
98 | ||
99 | struct kfd_dev *kfd_device_by_id(uint32_t gpu_id) | |
100 | { | |
101 | struct kfd_topology_device *top_dev; | |
102 | ||
103 | top_dev = kfd_topology_device_by_id(gpu_id); | |
104 | if (!top_dev) | |
105 | return NULL; | |
106 | ||
107 | return top_dev->gpu; | |
5b5c4e40 EP |
108 | } |
109 | ||
110 | struct kfd_dev *kfd_device_by_pci_dev(const struct pci_dev *pdev) | |
111 | { | |
112 | struct kfd_topology_device *top_dev; | |
113 | struct kfd_dev *device = NULL; | |
114 | ||
115 | down_read(&topology_lock); | |
116 | ||
117 | list_for_each_entry(top_dev, &topology_device_list, list) | |
3704d56e | 118 | if (top_dev->gpu && top_dev->gpu->pdev == pdev) { |
5b5c4e40 EP |
119 | device = top_dev->gpu; |
120 | break; | |
121 | } | |
122 | ||
123 | up_read(&topology_lock); | |
124 | ||
125 | return device; | |
126 | } | |
127 | ||
574c4183 | 128 | struct kfd_dev *kfd_device_by_adev(const struct amdgpu_device *adev) |
1dde0ea9 FK |
129 | { |
130 | struct kfd_topology_device *top_dev; | |
131 | struct kfd_dev *device = NULL; | |
132 | ||
133 | down_read(&topology_lock); | |
134 | ||
135 | list_for_each_entry(top_dev, &topology_device_list, list) | |
574c4183 | 136 | if (top_dev->gpu && top_dev->gpu->adev == adev) { |
1dde0ea9 FK |
137 | device = top_dev->gpu; |
138 | break; | |
139 | } | |
140 | ||
141 | up_read(&topology_lock); | |
142 | ||
143 | return device; | |
144 | } | |
145 | ||
3a87177e | 146 | /* Called with write topology_lock acquired */ |
5b5c4e40 EP |
147 | static void kfd_release_topology_device(struct kfd_topology_device *dev) |
148 | { | |
149 | struct kfd_mem_properties *mem; | |
150 | struct kfd_cache_properties *cache; | |
151 | struct kfd_iolink_properties *iolink; | |
0f28cca8 | 152 | struct kfd_iolink_properties *p2plink; |
f4757347 | 153 | struct kfd_perf_properties *perf; |
5b5c4e40 | 154 | |
5b5c4e40 EP |
155 | list_del(&dev->list); |
156 | ||
157 | while (dev->mem_props.next != &dev->mem_props) { | |
158 | mem = container_of(dev->mem_props.next, | |
159 | struct kfd_mem_properties, list); | |
160 | list_del(&mem->list); | |
161 | kfree(mem); | |
162 | } | |
163 | ||
164 | while (dev->cache_props.next != &dev->cache_props) { | |
165 | cache = container_of(dev->cache_props.next, | |
166 | struct kfd_cache_properties, list); | |
167 | list_del(&cache->list); | |
168 | kfree(cache); | |
169 | } | |
170 | ||
171 | while (dev->io_link_props.next != &dev->io_link_props) { | |
172 | iolink = container_of(dev->io_link_props.next, | |
173 | struct kfd_iolink_properties, list); | |
174 | list_del(&iolink->list); | |
175 | kfree(iolink); | |
176 | } | |
177 | ||
0f28cca8 RE |
178 | while (dev->p2p_link_props.next != &dev->p2p_link_props) { |
179 | p2plink = container_of(dev->p2p_link_props.next, | |
180 | struct kfd_iolink_properties, list); | |
181 | list_del(&p2plink->list); | |
182 | kfree(p2plink); | |
183 | } | |
184 | ||
f4757347 AL |
185 | while (dev->perf_props.next != &dev->perf_props) { |
186 | perf = container_of(dev->perf_props.next, | |
187 | struct kfd_perf_properties, list); | |
188 | list_del(&perf->list); | |
189 | kfree(perf); | |
190 | } | |
191 | ||
5b5c4e40 | 192 | kfree(dev); |
5b5c4e40 EP |
193 | } |
194 | ||
4f449311 | 195 | void kfd_release_topology_device_list(struct list_head *device_list) |
5b5c4e40 EP |
196 | { |
197 | struct kfd_topology_device *dev; | |
198 | ||
4f449311 HK |
199 | while (!list_empty(device_list)) { |
200 | dev = list_first_entry(device_list, | |
201 | struct kfd_topology_device, list); | |
5b5c4e40 | 202 | kfd_release_topology_device(dev); |
4f449311 | 203 | } |
5b5c4e40 EP |
204 | } |
205 | ||
4f449311 HK |
206 | static void kfd_release_live_view(void) |
207 | { | |
208 | kfd_release_topology_device_list(&topology_device_list); | |
5b5c4e40 EP |
209 | memset(&sys_props, 0, sizeof(sys_props)); |
210 | } | |
211 | ||
4f449311 HK |
212 | struct kfd_topology_device *kfd_create_topology_device( |
213 | struct list_head *device_list) | |
5b5c4e40 EP |
214 | { |
215 | struct kfd_topology_device *dev; | |
216 | ||
217 | dev = kfd_alloc_struct(dev); | |
4eacc26b | 218 | if (!dev) { |
5b5c4e40 | 219 | pr_err("No memory to allocate a topology device"); |
16b9201c | 220 | return NULL; |
5b5c4e40 EP |
221 | } |
222 | ||
223 | INIT_LIST_HEAD(&dev->mem_props); | |
224 | INIT_LIST_HEAD(&dev->cache_props); | |
225 | INIT_LIST_HEAD(&dev->io_link_props); | |
0f28cca8 | 226 | INIT_LIST_HEAD(&dev->p2p_link_props); |
f4757347 | 227 | INIT_LIST_HEAD(&dev->perf_props); |
5b5c4e40 | 228 | |
4f449311 | 229 | list_add_tail(&dev->list, device_list); |
5b5c4e40 EP |
230 | |
231 | return dev; | |
16b9201c | 232 | } |
5b5c4e40 | 233 | |
5b5c4e40 | 234 | |
83a13ef5 FK |
235 | #define sysfs_show_gen_prop(buffer, offs, fmt, ...) \ |
236 | (offs += snprintf(buffer+offs, PAGE_SIZE-offs, \ | |
237 | fmt, __VA_ARGS__)) | |
238 | #define sysfs_show_32bit_prop(buffer, offs, name, value) \ | |
239 | sysfs_show_gen_prop(buffer, offs, "%s %u\n", name, value) | |
240 | #define sysfs_show_64bit_prop(buffer, offs, name, value) \ | |
241 | sysfs_show_gen_prop(buffer, offs, "%s %llu\n", name, value) | |
242 | #define sysfs_show_32bit_val(buffer, offs, value) \ | |
243 | sysfs_show_gen_prop(buffer, offs, "%u\n", value) | |
244 | #define sysfs_show_str_val(buffer, offs, value) \ | |
245 | sysfs_show_gen_prop(buffer, offs, "%s\n", value) | |
5b5c4e40 EP |
246 | |
247 | static ssize_t sysprops_show(struct kobject *kobj, struct attribute *attr, | |
248 | char *buffer) | |
249 | { | |
83a13ef5 | 250 | int offs = 0; |
5b5c4e40 EP |
251 | |
252 | /* Making sure that the buffer is an empty string */ | |
253 | buffer[0] = 0; | |
254 | ||
255 | if (attr == &sys_props.attr_genid) { | |
83a13ef5 FK |
256 | sysfs_show_32bit_val(buffer, offs, |
257 | sys_props.generation_count); | |
5b5c4e40 | 258 | } else if (attr == &sys_props.attr_props) { |
83a13ef5 FK |
259 | sysfs_show_64bit_prop(buffer, offs, "platform_oem", |
260 | sys_props.platform_oem); | |
261 | sysfs_show_64bit_prop(buffer, offs, "platform_id", | |
262 | sys_props.platform_id); | |
263 | sysfs_show_64bit_prop(buffer, offs, "platform_rev", | |
264 | sys_props.platform_rev); | |
5b5c4e40 | 265 | } else { |
83a13ef5 | 266 | offs = -EINVAL; |
5b5c4e40 EP |
267 | } |
268 | ||
83a13ef5 | 269 | return offs; |
5b5c4e40 EP |
270 | } |
271 | ||
5108d768 YZ |
272 | static void kfd_topology_kobj_release(struct kobject *kobj) |
273 | { | |
274 | kfree(kobj); | |
275 | } | |
276 | ||
5b5c4e40 EP |
277 | static const struct sysfs_ops sysprops_ops = { |
278 | .show = sysprops_show, | |
279 | }; | |
280 | ||
281 | static struct kobj_type sysprops_type = { | |
5108d768 | 282 | .release = kfd_topology_kobj_release, |
5b5c4e40 EP |
283 | .sysfs_ops = &sysprops_ops, |
284 | }; | |
285 | ||
286 | static ssize_t iolink_show(struct kobject *kobj, struct attribute *attr, | |
287 | char *buffer) | |
288 | { | |
83a13ef5 | 289 | int offs = 0; |
5b5c4e40 EP |
290 | struct kfd_iolink_properties *iolink; |
291 | ||
292 | /* Making sure that the buffer is an empty string */ | |
293 | buffer[0] = 0; | |
294 | ||
295 | iolink = container_of(attr, struct kfd_iolink_properties, attr); | |
6b855f7b HK |
296 | if (iolink->gpu && kfd_devcgroup_check_permission(iolink->gpu)) |
297 | return -EPERM; | |
83a13ef5 FK |
298 | sysfs_show_32bit_prop(buffer, offs, "type", iolink->iolink_type); |
299 | sysfs_show_32bit_prop(buffer, offs, "version_major", iolink->ver_maj); | |
300 | sysfs_show_32bit_prop(buffer, offs, "version_minor", iolink->ver_min); | |
301 | sysfs_show_32bit_prop(buffer, offs, "node_from", iolink->node_from); | |
302 | sysfs_show_32bit_prop(buffer, offs, "node_to", iolink->node_to); | |
303 | sysfs_show_32bit_prop(buffer, offs, "weight", iolink->weight); | |
304 | sysfs_show_32bit_prop(buffer, offs, "min_latency", iolink->min_latency); | |
305 | sysfs_show_32bit_prop(buffer, offs, "max_latency", iolink->max_latency); | |
306 | sysfs_show_32bit_prop(buffer, offs, "min_bandwidth", | |
307 | iolink->min_bandwidth); | |
308 | sysfs_show_32bit_prop(buffer, offs, "max_bandwidth", | |
309 | iolink->max_bandwidth); | |
310 | sysfs_show_32bit_prop(buffer, offs, "recommended_transfer_size", | |
311 | iolink->rec_transfer_size); | |
312 | sysfs_show_32bit_prop(buffer, offs, "flags", iolink->flags); | |
313 | ||
314 | return offs; | |
5b5c4e40 EP |
315 | } |
316 | ||
317 | static const struct sysfs_ops iolink_ops = { | |
318 | .show = iolink_show, | |
319 | }; | |
320 | ||
321 | static struct kobj_type iolink_type = { | |
5108d768 | 322 | .release = kfd_topology_kobj_release, |
5b5c4e40 EP |
323 | .sysfs_ops = &iolink_ops, |
324 | }; | |
325 | ||
326 | static ssize_t mem_show(struct kobject *kobj, struct attribute *attr, | |
327 | char *buffer) | |
328 | { | |
83a13ef5 | 329 | int offs = 0; |
5b5c4e40 EP |
330 | struct kfd_mem_properties *mem; |
331 | ||
332 | /* Making sure that the buffer is an empty string */ | |
333 | buffer[0] = 0; | |
334 | ||
335 | mem = container_of(attr, struct kfd_mem_properties, attr); | |
6b855f7b HK |
336 | if (mem->gpu && kfd_devcgroup_check_permission(mem->gpu)) |
337 | return -EPERM; | |
83a13ef5 FK |
338 | sysfs_show_32bit_prop(buffer, offs, "heap_type", mem->heap_type); |
339 | sysfs_show_64bit_prop(buffer, offs, "size_in_bytes", | |
340 | mem->size_in_bytes); | |
341 | sysfs_show_32bit_prop(buffer, offs, "flags", mem->flags); | |
342 | sysfs_show_32bit_prop(buffer, offs, "width", mem->width); | |
343 | sysfs_show_32bit_prop(buffer, offs, "mem_clk_max", | |
344 | mem->mem_clk_max); | |
345 | ||
346 | return offs; | |
5b5c4e40 EP |
347 | } |
348 | ||
349 | static const struct sysfs_ops mem_ops = { | |
350 | .show = mem_show, | |
351 | }; | |
352 | ||
353 | static struct kobj_type mem_type = { | |
5108d768 | 354 | .release = kfd_topology_kobj_release, |
5b5c4e40 EP |
355 | .sysfs_ops = &mem_ops, |
356 | }; | |
357 | ||
358 | static ssize_t kfd_cache_show(struct kobject *kobj, struct attribute *attr, | |
359 | char *buffer) | |
360 | { | |
83a13ef5 | 361 | int offs = 0; |
bc0c75a3 | 362 | uint32_t i, j; |
5b5c4e40 EP |
363 | struct kfd_cache_properties *cache; |
364 | ||
365 | /* Making sure that the buffer is an empty string */ | |
366 | buffer[0] = 0; | |
367 | ||
368 | cache = container_of(attr, struct kfd_cache_properties, attr); | |
6b855f7b HK |
369 | if (cache->gpu && kfd_devcgroup_check_permission(cache->gpu)) |
370 | return -EPERM; | |
83a13ef5 | 371 | sysfs_show_32bit_prop(buffer, offs, "processor_id_low", |
5b5c4e40 | 372 | cache->processor_id_low); |
83a13ef5 FK |
373 | sysfs_show_32bit_prop(buffer, offs, "level", cache->cache_level); |
374 | sysfs_show_32bit_prop(buffer, offs, "size", cache->cache_size); | |
375 | sysfs_show_32bit_prop(buffer, offs, "cache_line_size", | |
376 | cache->cacheline_size); | |
377 | sysfs_show_32bit_prop(buffer, offs, "cache_lines_per_tag", | |
378 | cache->cachelines_per_tag); | |
379 | sysfs_show_32bit_prop(buffer, offs, "association", cache->cache_assoc); | |
380 | sysfs_show_32bit_prop(buffer, offs, "latency", cache->cache_latency); | |
381 | sysfs_show_32bit_prop(buffer, offs, "type", cache->cache_type); | |
382 | offs += snprintf(buffer+offs, PAGE_SIZE-offs, "sibling_map "); | |
bc0c75a3 | 383 | for (i = 0; i < CRAT_SIBLINGMAP_SIZE; i++) |
83a13ef5 | 384 | for (j = 0; j < sizeof(cache->sibling_map[0])*8; j++) |
bc0c75a3 | 385 | /* Check each bit */ |
83a13ef5 FK |
386 | offs += snprintf(buffer+offs, PAGE_SIZE-offs, "%d,", |
387 | (cache->sibling_map[i] >> j) & 1); | |
388 | ||
bc0c75a3 | 389 | /* Replace the last "," with end of line */ |
83a13ef5 FK |
390 | buffer[offs-1] = '\n'; |
391 | return offs; | |
5b5c4e40 EP |
392 | } |
393 | ||
394 | static const struct sysfs_ops cache_ops = { | |
395 | .show = kfd_cache_show, | |
396 | }; | |
397 | ||
398 | static struct kobj_type cache_type = { | |
5108d768 | 399 | .release = kfd_topology_kobj_release, |
5b5c4e40 EP |
400 | .sysfs_ops = &cache_ops, |
401 | }; | |
402 | ||
f4757347 AL |
403 | /****** Sysfs of Performance Counters ******/ |
404 | ||
405 | struct kfd_perf_attr { | |
406 | struct kobj_attribute attr; | |
407 | uint32_t data; | |
408 | }; | |
409 | ||
410 | static ssize_t perf_show(struct kobject *kobj, struct kobj_attribute *attrs, | |
411 | char *buf) | |
412 | { | |
83a13ef5 | 413 | int offs = 0; |
f4757347 AL |
414 | struct kfd_perf_attr *attr; |
415 | ||
416 | buf[0] = 0; | |
417 | attr = container_of(attrs, struct kfd_perf_attr, attr); | |
418 | if (!attr->data) /* invalid data for PMC */ | |
419 | return 0; | |
420 | else | |
83a13ef5 | 421 | return sysfs_show_32bit_val(buf, offs, attr->data); |
f4757347 AL |
422 | } |
423 | ||
424 | #define KFD_PERF_DESC(_name, _data) \ | |
425 | { \ | |
426 | .attr = __ATTR(_name, 0444, perf_show, NULL), \ | |
427 | .data = _data, \ | |
428 | } | |
429 | ||
430 | static struct kfd_perf_attr perf_attr_iommu[] = { | |
431 | KFD_PERF_DESC(max_concurrent, 0), | |
432 | KFD_PERF_DESC(num_counters, 0), | |
433 | KFD_PERF_DESC(counter_ids, 0), | |
434 | }; | |
435 | /****************************************/ | |
436 | ||
5b5c4e40 EP |
437 | static ssize_t node_show(struct kobject *kobj, struct attribute *attr, |
438 | char *buffer) | |
439 | { | |
83a13ef5 | 440 | int offs = 0; |
5b5c4e40 | 441 | struct kfd_topology_device *dev; |
f7c826ad | 442 | uint32_t log_max_watch_addr; |
5b5c4e40 EP |
443 | |
444 | /* Making sure that the buffer is an empty string */ | |
445 | buffer[0] = 0; | |
446 | ||
447 | if (strcmp(attr->name, "gpu_id") == 0) { | |
448 | dev = container_of(attr, struct kfd_topology_device, | |
449 | attr_gpuid); | |
6b855f7b HK |
450 | if (dev->gpu && kfd_devcgroup_check_permission(dev->gpu)) |
451 | return -EPERM; | |
83a13ef5 | 452 | return sysfs_show_32bit_val(buffer, offs, dev->gpu_id); |
f7c826ad AS |
453 | } |
454 | ||
455 | if (strcmp(attr->name, "name") == 0) { | |
5b5c4e40 EP |
456 | dev = container_of(attr, struct kfd_topology_device, |
457 | attr_name); | |
c181159a | 458 | |
6b855f7b HK |
459 | if (dev->gpu && kfd_devcgroup_check_permission(dev->gpu)) |
460 | return -EPERM; | |
83a13ef5 | 461 | return sysfs_show_str_val(buffer, offs, dev->node_props.name); |
f7c826ad | 462 | } |
5b5c4e40 | 463 | |
f7c826ad AS |
464 | dev = container_of(attr, struct kfd_topology_device, |
465 | attr_props); | |
6b855f7b HK |
466 | if (dev->gpu && kfd_devcgroup_check_permission(dev->gpu)) |
467 | return -EPERM; | |
83a13ef5 FK |
468 | sysfs_show_32bit_prop(buffer, offs, "cpu_cores_count", |
469 | dev->node_props.cpu_cores_count); | |
470 | sysfs_show_32bit_prop(buffer, offs, "simd_count", | |
6127896f | 471 | dev->gpu ? dev->node_props.simd_count : 0); |
83a13ef5 FK |
472 | sysfs_show_32bit_prop(buffer, offs, "mem_banks_count", |
473 | dev->node_props.mem_banks_count); | |
474 | sysfs_show_32bit_prop(buffer, offs, "caches_count", | |
475 | dev->node_props.caches_count); | |
476 | sysfs_show_32bit_prop(buffer, offs, "io_links_count", | |
477 | dev->node_props.io_links_count); | |
0f28cca8 RE |
478 | sysfs_show_32bit_prop(buffer, offs, "p2p_links_count", |
479 | dev->node_props.p2p_links_count); | |
83a13ef5 FK |
480 | sysfs_show_32bit_prop(buffer, offs, "cpu_core_id_base", |
481 | dev->node_props.cpu_core_id_base); | |
482 | sysfs_show_32bit_prop(buffer, offs, "simd_id_base", | |
483 | dev->node_props.simd_id_base); | |
484 | sysfs_show_32bit_prop(buffer, offs, "max_waves_per_simd", | |
485 | dev->node_props.max_waves_per_simd); | |
486 | sysfs_show_32bit_prop(buffer, offs, "lds_size_in_kb", | |
487 | dev->node_props.lds_size_in_kb); | |
488 | sysfs_show_32bit_prop(buffer, offs, "gds_size_in_kb", | |
489 | dev->node_props.gds_size_in_kb); | |
490 | sysfs_show_32bit_prop(buffer, offs, "num_gws", | |
491 | dev->node_props.num_gws); | |
492 | sysfs_show_32bit_prop(buffer, offs, "wave_front_size", | |
493 | dev->node_props.wave_front_size); | |
494 | sysfs_show_32bit_prop(buffer, offs, "array_count", | |
495 | dev->node_props.array_count); | |
496 | sysfs_show_32bit_prop(buffer, offs, "simd_arrays_per_engine", | |
497 | dev->node_props.simd_arrays_per_engine); | |
498 | sysfs_show_32bit_prop(buffer, offs, "cu_per_simd_array", | |
499 | dev->node_props.cu_per_simd_array); | |
500 | sysfs_show_32bit_prop(buffer, offs, "simd_per_cu", | |
501 | dev->node_props.simd_per_cu); | |
502 | sysfs_show_32bit_prop(buffer, offs, "max_slots_scratch_cu", | |
503 | dev->node_props.max_slots_scratch_cu); | |
9d6fa9c7 GS |
504 | sysfs_show_32bit_prop(buffer, offs, "gfx_target_version", |
505 | dev->node_props.gfx_target_version); | |
83a13ef5 FK |
506 | sysfs_show_32bit_prop(buffer, offs, "vendor_id", |
507 | dev->node_props.vendor_id); | |
508 | sysfs_show_32bit_prop(buffer, offs, "device_id", | |
509 | dev->node_props.device_id); | |
510 | sysfs_show_32bit_prop(buffer, offs, "location_id", | |
511 | dev->node_props.location_id); | |
512 | sysfs_show_32bit_prop(buffer, offs, "domain", | |
513 | dev->node_props.domain); | |
514 | sysfs_show_32bit_prop(buffer, offs, "drm_render_minor", | |
515 | dev->node_props.drm_render_minor); | |
516 | sysfs_show_64bit_prop(buffer, offs, "hive_id", | |
517 | dev->node_props.hive_id); | |
518 | sysfs_show_32bit_prop(buffer, offs, "num_sdma_engines", | |
519 | dev->node_props.num_sdma_engines); | |
520 | sysfs_show_32bit_prop(buffer, offs, "num_sdma_xgmi_engines", | |
521 | dev->node_props.num_sdma_xgmi_engines); | |
522 | sysfs_show_32bit_prop(buffer, offs, "num_sdma_queues_per_engine", | |
523 | dev->node_props.num_sdma_queues_per_engine); | |
524 | sysfs_show_32bit_prop(buffer, offs, "num_cp_queues", | |
525 | dev->node_props.num_cp_queues); | |
f7c826ad AS |
526 | |
527 | if (dev->gpu) { | |
528 | log_max_watch_addr = | |
f0dc99a6 | 529 | __ilog2_u32(dev->gpu->device_info.num_of_watch_points); |
f7c826ad AS |
530 | |
531 | if (log_max_watch_addr) { | |
532 | dev->node_props.capability |= | |
533 | HSA_CAP_WATCH_POINTS_SUPPORTED; | |
534 | ||
535 | dev->node_props.capability |= | |
536 | ((log_max_watch_addr << | |
537 | HSA_CAP_WATCH_POINTS_TOTALBITS_SHIFT) & | |
538 | HSA_CAP_WATCH_POINTS_TOTALBITS_MASK); | |
5b5c4e40 EP |
539 | } |
540 | ||
7eb0502a | 541 | if (dev->gpu->adev->asic_type == CHIP_TONGA) |
413e85d5 BG |
542 | dev->node_props.capability |= |
543 | HSA_CAP_AQL_QUEUE_DOUBLE_MAP; | |
544 | ||
83a13ef5 | 545 | sysfs_show_32bit_prop(buffer, offs, "max_engine_clk_fcompute", |
3a87177e | 546 | dev->node_props.max_engine_clk_fcompute); |
42e08c78 | 547 | |
83a13ef5 | 548 | sysfs_show_64bit_prop(buffer, offs, "local_mem_size", 0ULL); |
f7c826ad | 549 | |
83a13ef5 FK |
550 | sysfs_show_32bit_prop(buffer, offs, "fw_version", |
551 | dev->gpu->mec_fw_version); | |
552 | sysfs_show_32bit_prop(buffer, offs, "capability", | |
553 | dev->node_props.capability); | |
554 | sysfs_show_32bit_prop(buffer, offs, "sdma_fw_version", | |
555 | dev->gpu->sdma_fw_version); | |
11964258 | 556 | sysfs_show_64bit_prop(buffer, offs, "unique_id", |
02274fc0 | 557 | dev->gpu->adev->unique_id); |
11964258 | 558 | |
5b5c4e40 EP |
559 | } |
560 | ||
83a13ef5 FK |
561 | return sysfs_show_32bit_prop(buffer, offs, "max_engine_clk_ccompute", |
562 | cpufreq_quick_get_max(0)/1000); | |
5b5c4e40 EP |
563 | } |
564 | ||
565 | static const struct sysfs_ops node_ops = { | |
566 | .show = node_show, | |
567 | }; | |
568 | ||
569 | static struct kobj_type node_type = { | |
5108d768 | 570 | .release = kfd_topology_kobj_release, |
5b5c4e40 EP |
571 | .sysfs_ops = &node_ops, |
572 | }; | |
573 | ||
574 | static void kfd_remove_sysfs_file(struct kobject *kobj, struct attribute *attr) | |
575 | { | |
576 | sysfs_remove_file(kobj, attr); | |
577 | kobject_del(kobj); | |
578 | kobject_put(kobj); | |
579 | } | |
580 | ||
581 | static void kfd_remove_sysfs_node_entry(struct kfd_topology_device *dev) | |
582 | { | |
0f28cca8 | 583 | struct kfd_iolink_properties *p2plink; |
5b5c4e40 EP |
584 | struct kfd_iolink_properties *iolink; |
585 | struct kfd_cache_properties *cache; | |
586 | struct kfd_mem_properties *mem; | |
f4757347 | 587 | struct kfd_perf_properties *perf; |
5b5c4e40 | 588 | |
5b5c4e40 EP |
589 | if (dev->kobj_iolink) { |
590 | list_for_each_entry(iolink, &dev->io_link_props, list) | |
591 | if (iolink->kobj) { | |
592 | kfd_remove_sysfs_file(iolink->kobj, | |
593 | &iolink->attr); | |
16b9201c | 594 | iolink->kobj = NULL; |
5b5c4e40 EP |
595 | } |
596 | kobject_del(dev->kobj_iolink); | |
597 | kobject_put(dev->kobj_iolink); | |
16b9201c | 598 | dev->kobj_iolink = NULL; |
5b5c4e40 EP |
599 | } |
600 | ||
0f28cca8 RE |
601 | if (dev->kobj_p2plink) { |
602 | list_for_each_entry(p2plink, &dev->p2p_link_props, list) | |
603 | if (p2plink->kobj) { | |
604 | kfd_remove_sysfs_file(p2plink->kobj, | |
605 | &p2plink->attr); | |
606 | p2plink->kobj = NULL; | |
607 | } | |
608 | kobject_del(dev->kobj_p2plink); | |
609 | kobject_put(dev->kobj_p2plink); | |
610 | dev->kobj_p2plink = NULL; | |
611 | } | |
612 | ||
5b5c4e40 EP |
613 | if (dev->kobj_cache) { |
614 | list_for_each_entry(cache, &dev->cache_props, list) | |
615 | if (cache->kobj) { | |
616 | kfd_remove_sysfs_file(cache->kobj, | |
617 | &cache->attr); | |
16b9201c | 618 | cache->kobj = NULL; |
5b5c4e40 EP |
619 | } |
620 | kobject_del(dev->kobj_cache); | |
621 | kobject_put(dev->kobj_cache); | |
16b9201c | 622 | dev->kobj_cache = NULL; |
5b5c4e40 EP |
623 | } |
624 | ||
625 | if (dev->kobj_mem) { | |
626 | list_for_each_entry(mem, &dev->mem_props, list) | |
627 | if (mem->kobj) { | |
628 | kfd_remove_sysfs_file(mem->kobj, &mem->attr); | |
16b9201c | 629 | mem->kobj = NULL; |
5b5c4e40 EP |
630 | } |
631 | kobject_del(dev->kobj_mem); | |
632 | kobject_put(dev->kobj_mem); | |
16b9201c | 633 | dev->kobj_mem = NULL; |
5b5c4e40 EP |
634 | } |
635 | ||
f4757347 AL |
636 | if (dev->kobj_perf) { |
637 | list_for_each_entry(perf, &dev->perf_props, list) { | |
638 | kfree(perf->attr_group); | |
639 | perf->attr_group = NULL; | |
640 | } | |
641 | kobject_del(dev->kobj_perf); | |
642 | kobject_put(dev->kobj_perf); | |
643 | dev->kobj_perf = NULL; | |
644 | } | |
645 | ||
5b5c4e40 EP |
646 | if (dev->kobj_node) { |
647 | sysfs_remove_file(dev->kobj_node, &dev->attr_gpuid); | |
648 | sysfs_remove_file(dev->kobj_node, &dev->attr_name); | |
649 | sysfs_remove_file(dev->kobj_node, &dev->attr_props); | |
650 | kobject_del(dev->kobj_node); | |
651 | kobject_put(dev->kobj_node); | |
16b9201c | 652 | dev->kobj_node = NULL; |
5b5c4e40 EP |
653 | } |
654 | } | |
655 | ||
656 | static int kfd_build_sysfs_node_entry(struct kfd_topology_device *dev, | |
657 | uint32_t id) | |
658 | { | |
0f28cca8 | 659 | struct kfd_iolink_properties *p2plink; |
5b5c4e40 EP |
660 | struct kfd_iolink_properties *iolink; |
661 | struct kfd_cache_properties *cache; | |
662 | struct kfd_mem_properties *mem; | |
f4757347 | 663 | struct kfd_perf_properties *perf; |
5b5c4e40 | 664 | int ret; |
f4757347 AL |
665 | uint32_t i, num_attrs; |
666 | struct attribute **attrs; | |
5b5c4e40 | 667 | |
32fa8219 FK |
668 | if (WARN_ON(dev->kobj_node)) |
669 | return -EEXIST; | |
670 | ||
5b5c4e40 EP |
671 | /* |
672 | * Creating the sysfs folders | |
673 | */ | |
5b5c4e40 EP |
674 | dev->kobj_node = kfd_alloc_struct(dev->kobj_node); |
675 | if (!dev->kobj_node) | |
676 | return -ENOMEM; | |
677 | ||
678 | ret = kobject_init_and_add(dev->kobj_node, &node_type, | |
679 | sys_props.kobj_nodes, "%d", id); | |
20eca012 QW |
680 | if (ret < 0) { |
681 | kobject_put(dev->kobj_node); | |
5b5c4e40 | 682 | return ret; |
20eca012 | 683 | } |
5b5c4e40 EP |
684 | |
685 | dev->kobj_mem = kobject_create_and_add("mem_banks", dev->kobj_node); | |
686 | if (!dev->kobj_mem) | |
687 | return -ENOMEM; | |
688 | ||
689 | dev->kobj_cache = kobject_create_and_add("caches", dev->kobj_node); | |
690 | if (!dev->kobj_cache) | |
691 | return -ENOMEM; | |
692 | ||
693 | dev->kobj_iolink = kobject_create_and_add("io_links", dev->kobj_node); | |
694 | if (!dev->kobj_iolink) | |
695 | return -ENOMEM; | |
696 | ||
0f28cca8 RE |
697 | dev->kobj_p2plink = kobject_create_and_add("p2p_links", dev->kobj_node); |
698 | if (!dev->kobj_p2plink) | |
699 | return -ENOMEM; | |
700 | ||
f4757347 AL |
701 | dev->kobj_perf = kobject_create_and_add("perf", dev->kobj_node); |
702 | if (!dev->kobj_perf) | |
703 | return -ENOMEM; | |
704 | ||
5b5c4e40 EP |
705 | /* |
706 | * Creating sysfs files for node properties | |
707 | */ | |
708 | dev->attr_gpuid.name = "gpu_id"; | |
709 | dev->attr_gpuid.mode = KFD_SYSFS_FILE_MODE; | |
710 | sysfs_attr_init(&dev->attr_gpuid); | |
711 | dev->attr_name.name = "name"; | |
712 | dev->attr_name.mode = KFD_SYSFS_FILE_MODE; | |
713 | sysfs_attr_init(&dev->attr_name); | |
714 | dev->attr_props.name = "properties"; | |
715 | dev->attr_props.mode = KFD_SYSFS_FILE_MODE; | |
716 | sysfs_attr_init(&dev->attr_props); | |
717 | ret = sysfs_create_file(dev->kobj_node, &dev->attr_gpuid); | |
718 | if (ret < 0) | |
719 | return ret; | |
720 | ret = sysfs_create_file(dev->kobj_node, &dev->attr_name); | |
721 | if (ret < 0) | |
722 | return ret; | |
723 | ret = sysfs_create_file(dev->kobj_node, &dev->attr_props); | |
724 | if (ret < 0) | |
725 | return ret; | |
726 | ||
727 | i = 0; | |
728 | list_for_each_entry(mem, &dev->mem_props, list) { | |
729 | mem->kobj = kzalloc(sizeof(struct kobject), GFP_KERNEL); | |
730 | if (!mem->kobj) | |
731 | return -ENOMEM; | |
732 | ret = kobject_init_and_add(mem->kobj, &mem_type, | |
733 | dev->kobj_mem, "%d", i); | |
20eca012 QW |
734 | if (ret < 0) { |
735 | kobject_put(mem->kobj); | |
5b5c4e40 | 736 | return ret; |
20eca012 | 737 | } |
5b5c4e40 EP |
738 | |
739 | mem->attr.name = "properties"; | |
740 | mem->attr.mode = KFD_SYSFS_FILE_MODE; | |
741 | sysfs_attr_init(&mem->attr); | |
742 | ret = sysfs_create_file(mem->kobj, &mem->attr); | |
743 | if (ret < 0) | |
744 | return ret; | |
745 | i++; | |
746 | } | |
747 | ||
748 | i = 0; | |
749 | list_for_each_entry(cache, &dev->cache_props, list) { | |
750 | cache->kobj = kzalloc(sizeof(struct kobject), GFP_KERNEL); | |
751 | if (!cache->kobj) | |
752 | return -ENOMEM; | |
753 | ret = kobject_init_and_add(cache->kobj, &cache_type, | |
754 | dev->kobj_cache, "%d", i); | |
20eca012 QW |
755 | if (ret < 0) { |
756 | kobject_put(cache->kobj); | |
5b5c4e40 | 757 | return ret; |
20eca012 | 758 | } |
5b5c4e40 EP |
759 | |
760 | cache->attr.name = "properties"; | |
761 | cache->attr.mode = KFD_SYSFS_FILE_MODE; | |
762 | sysfs_attr_init(&cache->attr); | |
763 | ret = sysfs_create_file(cache->kobj, &cache->attr); | |
764 | if (ret < 0) | |
765 | return ret; | |
766 | i++; | |
767 | } | |
768 | ||
769 | i = 0; | |
770 | list_for_each_entry(iolink, &dev->io_link_props, list) { | |
771 | iolink->kobj = kzalloc(sizeof(struct kobject), GFP_KERNEL); | |
772 | if (!iolink->kobj) | |
773 | return -ENOMEM; | |
774 | ret = kobject_init_and_add(iolink->kobj, &iolink_type, | |
775 | dev->kobj_iolink, "%d", i); | |
20eca012 QW |
776 | if (ret < 0) { |
777 | kobject_put(iolink->kobj); | |
5b5c4e40 | 778 | return ret; |
20eca012 | 779 | } |
5b5c4e40 EP |
780 | |
781 | iolink->attr.name = "properties"; | |
782 | iolink->attr.mode = KFD_SYSFS_FILE_MODE; | |
783 | sysfs_attr_init(&iolink->attr); | |
784 | ret = sysfs_create_file(iolink->kobj, &iolink->attr); | |
785 | if (ret < 0) | |
786 | return ret; | |
787 | i++; | |
f4757347 AL |
788 | } |
789 | ||
0f28cca8 RE |
790 | i = 0; |
791 | list_for_each_entry(p2plink, &dev->p2p_link_props, list) { | |
792 | p2plink->kobj = kzalloc(sizeof(struct kobject), GFP_KERNEL); | |
793 | if (!p2plink->kobj) | |
794 | return -ENOMEM; | |
795 | ret = kobject_init_and_add(p2plink->kobj, &iolink_type, | |
796 | dev->kobj_p2plink, "%d", i); | |
797 | if (ret < 0) { | |
798 | kobject_put(p2plink->kobj); | |
799 | return ret; | |
800 | } | |
801 | ||
802 | p2plink->attr.name = "properties"; | |
803 | p2plink->attr.mode = KFD_SYSFS_FILE_MODE; | |
804 | sysfs_attr_init(&iolink->attr); | |
805 | ret = sysfs_create_file(p2plink->kobj, &p2plink->attr); | |
806 | if (ret < 0) | |
807 | return ret; | |
808 | i++; | |
809 | } | |
810 | ||
f4757347 | 811 | /* All hardware blocks have the same number of attributes. */ |
3f866f5f | 812 | num_attrs = ARRAY_SIZE(perf_attr_iommu); |
f4757347 AL |
813 | list_for_each_entry(perf, &dev->perf_props, list) { |
814 | perf->attr_group = kzalloc(sizeof(struct kfd_perf_attr) | |
815 | * num_attrs + sizeof(struct attribute_group), | |
816 | GFP_KERNEL); | |
817 | if (!perf->attr_group) | |
818 | return -ENOMEM; | |
819 | ||
820 | attrs = (struct attribute **)(perf->attr_group + 1); | |
821 | if (!strcmp(perf->block_name, "iommu")) { | |
822 | /* Information of IOMMU's num_counters and counter_ids is shown | |
823 | * under /sys/bus/event_source/devices/amd_iommu. We don't | |
824 | * duplicate here. | |
825 | */ | |
826 | perf_attr_iommu[0].data = perf->max_concurrent; | |
827 | for (i = 0; i < num_attrs; i++) | |
828 | attrs[i] = &perf_attr_iommu[i].attr.attr; | |
829 | } | |
830 | perf->attr_group->name = perf->block_name; | |
831 | perf->attr_group->attrs = attrs; | |
832 | ret = sysfs_create_group(dev->kobj_perf, perf->attr_group); | |
833 | if (ret < 0) | |
834 | return ret; | |
835 | } | |
5b5c4e40 EP |
836 | |
837 | return 0; | |
838 | } | |
839 | ||
3a87177e | 840 | /* Called with write topology lock acquired */ |
5b5c4e40 EP |
841 | static int kfd_build_sysfs_node_tree(void) |
842 | { | |
843 | struct kfd_topology_device *dev; | |
844 | int ret; | |
845 | uint32_t i = 0; | |
846 | ||
847 | list_for_each_entry(dev, &topology_device_list, list) { | |
8dfead6c | 848 | ret = kfd_build_sysfs_node_entry(dev, i); |
5b5c4e40 EP |
849 | if (ret < 0) |
850 | return ret; | |
851 | i++; | |
852 | } | |
853 | ||
854 | return 0; | |
855 | } | |
856 | ||
3a87177e | 857 | /* Called with write topology lock acquired */ |
5b5c4e40 EP |
858 | static void kfd_remove_sysfs_node_tree(void) |
859 | { | |
860 | struct kfd_topology_device *dev; | |
861 | ||
862 | list_for_each_entry(dev, &topology_device_list, list) | |
863 | kfd_remove_sysfs_node_entry(dev); | |
864 | } | |
865 | ||
866 | static int kfd_topology_update_sysfs(void) | |
867 | { | |
868 | int ret; | |
869 | ||
4eacc26b | 870 | if (!sys_props.kobj_topology) { |
5b5c4e40 EP |
871 | sys_props.kobj_topology = |
872 | kfd_alloc_struct(sys_props.kobj_topology); | |
873 | if (!sys_props.kobj_topology) | |
874 | return -ENOMEM; | |
875 | ||
876 | ret = kobject_init_and_add(sys_props.kobj_topology, | |
877 | &sysprops_type, &kfd_device->kobj, | |
878 | "topology"); | |
20eca012 QW |
879 | if (ret < 0) { |
880 | kobject_put(sys_props.kobj_topology); | |
5b5c4e40 | 881 | return ret; |
20eca012 | 882 | } |
5b5c4e40 EP |
883 | |
884 | sys_props.kobj_nodes = kobject_create_and_add("nodes", | |
885 | sys_props.kobj_topology); | |
886 | if (!sys_props.kobj_nodes) | |
887 | return -ENOMEM; | |
888 | ||
889 | sys_props.attr_genid.name = "generation_id"; | |
890 | sys_props.attr_genid.mode = KFD_SYSFS_FILE_MODE; | |
891 | sysfs_attr_init(&sys_props.attr_genid); | |
892 | ret = sysfs_create_file(sys_props.kobj_topology, | |
893 | &sys_props.attr_genid); | |
894 | if (ret < 0) | |
895 | return ret; | |
896 | ||
897 | sys_props.attr_props.name = "system_properties"; | |
898 | sys_props.attr_props.mode = KFD_SYSFS_FILE_MODE; | |
899 | sysfs_attr_init(&sys_props.attr_props); | |
900 | ret = sysfs_create_file(sys_props.kobj_topology, | |
901 | &sys_props.attr_props); | |
902 | if (ret < 0) | |
903 | return ret; | |
904 | } | |
905 | ||
906 | kfd_remove_sysfs_node_tree(); | |
907 | ||
908 | return kfd_build_sysfs_node_tree(); | |
909 | } | |
910 | ||
911 | static void kfd_topology_release_sysfs(void) | |
912 | { | |
913 | kfd_remove_sysfs_node_tree(); | |
914 | if (sys_props.kobj_topology) { | |
915 | sysfs_remove_file(sys_props.kobj_topology, | |
916 | &sys_props.attr_genid); | |
917 | sysfs_remove_file(sys_props.kobj_topology, | |
918 | &sys_props.attr_props); | |
919 | if (sys_props.kobj_nodes) { | |
920 | kobject_del(sys_props.kobj_nodes); | |
921 | kobject_put(sys_props.kobj_nodes); | |
16b9201c | 922 | sys_props.kobj_nodes = NULL; |
5b5c4e40 EP |
923 | } |
924 | kobject_del(sys_props.kobj_topology); | |
925 | kobject_put(sys_props.kobj_topology); | |
16b9201c | 926 | sys_props.kobj_topology = NULL; |
5b5c4e40 EP |
927 | } |
928 | } | |
929 | ||
4f449311 HK |
930 | /* Called with write topology_lock acquired */ |
931 | static void kfd_topology_update_device_list(struct list_head *temp_list, | |
932 | struct list_head *master_list) | |
933 | { | |
934 | while (!list_empty(temp_list)) { | |
935 | list_move_tail(temp_list->next, master_list); | |
936 | sys_props.num_devices++; | |
937 | } | |
938 | } | |
939 | ||
520b8fb7 FK |
940 | static void kfd_debug_print_topology(void) |
941 | { | |
942 | struct kfd_topology_device *dev; | |
943 | ||
944 | down_read(&topology_lock); | |
945 | ||
946 | dev = list_last_entry(&topology_device_list, | |
947 | struct kfd_topology_device, list); | |
948 | if (dev) { | |
949 | if (dev->node_props.cpu_cores_count && | |
950 | dev->node_props.simd_count) { | |
951 | pr_info("Topology: Add APU node [0x%0x:0x%0x]\n", | |
952 | dev->node_props.device_id, | |
953 | dev->node_props.vendor_id); | |
954 | } else if (dev->node_props.cpu_cores_count) | |
955 | pr_info("Topology: Add CPU node\n"); | |
956 | else if (dev->node_props.simd_count) | |
957 | pr_info("Topology: Add dGPU node [0x%0x:0x%0x]\n", | |
958 | dev->node_props.device_id, | |
959 | dev->node_props.vendor_id); | |
960 | } | |
961 | up_read(&topology_lock); | |
962 | } | |
963 | ||
964 | /* Helper function for intializing platform_xx members of | |
965 | * kfd_system_properties. Uses OEM info from the last CPU/APU node. | |
966 | */ | |
967 | static void kfd_update_system_properties(void) | |
968 | { | |
969 | struct kfd_topology_device *dev; | |
970 | ||
971 | down_read(&topology_lock); | |
972 | dev = list_last_entry(&topology_device_list, | |
973 | struct kfd_topology_device, list); | |
974 | if (dev) { | |
975 | sys_props.platform_id = | |
976 | (*((uint64_t *)dev->oem_id)) & CRAT_OEMID_64BIT_MASK; | |
977 | sys_props.platform_oem = *((uint64_t *)dev->oem_table_id); | |
978 | sys_props.platform_rev = dev->oem_revision; | |
979 | } | |
980 | up_read(&topology_lock); | |
981 | } | |
982 | ||
983 | static void find_system_memory(const struct dmi_header *dm, | |
984 | void *private) | |
985 | { | |
986 | struct kfd_mem_properties *mem; | |
987 | u16 mem_width, mem_clock; | |
988 | struct kfd_topology_device *kdev = | |
989 | (struct kfd_topology_device *)private; | |
990 | const u8 *dmi_data = (const u8 *)(dm + 1); | |
991 | ||
992 | if (dm->type == DMI_ENTRY_MEM_DEVICE && dm->length >= 0x15) { | |
993 | mem_width = (u16)(*(const u16 *)(dmi_data + 0x6)); | |
994 | mem_clock = (u16)(*(const u16 *)(dmi_data + 0x11)); | |
995 | list_for_each_entry(mem, &kdev->mem_props, list) { | |
996 | if (mem_width != 0xFFFF && mem_width != 0) | |
997 | mem->width = mem_width; | |
998 | if (mem_clock != 0) | |
999 | mem->mem_clk_max = mem_clock; | |
1000 | } | |
1001 | } | |
1002 | } | |
f4757347 AL |
1003 | |
1004 | /* | |
1005 | * Performance counters information is not part of CRAT but we would like to | |
1006 | * put them in the sysfs under topology directory for Thunk to get the data. | |
1007 | * This function is called before updating the sysfs. | |
1008 | */ | |
1009 | static int kfd_add_perf_to_topology(struct kfd_topology_device *kdev) | |
1010 | { | |
64d1c3a4 FK |
1011 | /* These are the only counters supported so far */ |
1012 | return kfd_iommu_add_perf_counters(kdev); | |
f4757347 AL |
1013 | } |
1014 | ||
520b8fb7 FK |
1015 | /* kfd_add_non_crat_information - Add information that is not currently |
1016 | * defined in CRAT but is necessary for KFD topology | |
1017 | * @dev - topology device to which addition info is added | |
1018 | */ | |
1019 | static void kfd_add_non_crat_information(struct kfd_topology_device *kdev) | |
1020 | { | |
1021 | /* Check if CPU only node. */ | |
1022 | if (!kdev->gpu) { | |
1023 | /* Add system memory information */ | |
1024 | dmi_walk(find_system_memory, kdev); | |
1025 | } | |
1026 | /* TODO: For GPU node, rearrange code from kfd_topology_add_device */ | |
1027 | } | |
1028 | ||
b441093e HK |
1029 | /* kfd_is_acpi_crat_invalid - CRAT from ACPI is valid only for AMD APU devices. |
1030 | * Ignore CRAT for all other devices. AMD APU is identified if both CPU | |
1031 | * and GPU cores are present. | |
1032 | * @device_list - topology device list created by parsing ACPI CRAT table. | |
1033 | * @return - TRUE if invalid, FALSE is valid. | |
1034 | */ | |
1035 | static bool kfd_is_acpi_crat_invalid(struct list_head *device_list) | |
1036 | { | |
1037 | struct kfd_topology_device *dev; | |
1038 | ||
1039 | list_for_each_entry(dev, device_list, list) { | |
1040 | if (dev->node_props.cpu_cores_count && | |
1041 | dev->node_props.simd_count) | |
1042 | return false; | |
1043 | } | |
1044 | pr_info("Ignoring ACPI CRAT on non-APU system\n"); | |
1045 | return true; | |
1046 | } | |
1047 | ||
5b5c4e40 EP |
1048 | int kfd_topology_init(void) |
1049 | { | |
16b9201c | 1050 | void *crat_image = NULL; |
5b5c4e40 EP |
1051 | size_t image_size = 0; |
1052 | int ret; | |
4f449311 | 1053 | struct list_head temp_topology_device_list; |
520b8fb7 FK |
1054 | int cpu_only_node = 0; |
1055 | struct kfd_topology_device *kdev; | |
1056 | int proximity_domain; | |
5b5c4e40 | 1057 | |
4f449311 HK |
1058 | /* topology_device_list - Master list of all topology devices |
1059 | * temp_topology_device_list - temporary list created while parsing CRAT | |
1060 | * or VCRAT. Once parsing is complete the contents of list is moved to | |
1061 | * topology_device_list | |
5b5c4e40 | 1062 | */ |
4f449311 HK |
1063 | |
1064 | /* Initialize the head for the both the lists */ | |
5b5c4e40 | 1065 | INIT_LIST_HEAD(&topology_device_list); |
4f449311 | 1066 | INIT_LIST_HEAD(&temp_topology_device_list); |
5b5c4e40 | 1067 | init_rwsem(&topology_lock); |
5b5c4e40 EP |
1068 | |
1069 | memset(&sys_props, 0, sizeof(sys_props)); | |
1070 | ||
520b8fb7 FK |
1071 | /* Proximity domains in ACPI CRAT tables start counting at |
1072 | * 0. The same should be true for virtual CRAT tables created | |
1073 | * at this stage. GPUs added later in kfd_topology_add_device | |
1074 | * use a counter. | |
1075 | */ | |
1076 | proximity_domain = 0; | |
1077 | ||
5b5c4e40 | 1078 | /* |
520b8fb7 | 1079 | * Get the CRAT image from the ACPI. If ACPI doesn't have one |
b441093e | 1080 | * or if ACPI CRAT is invalid create a virtual CRAT. |
520b8fb7 FK |
1081 | * NOTE: The current implementation expects all AMD APUs to have |
1082 | * CRAT. If no CRAT is available, it is assumed to be a CPU | |
5b5c4e40 | 1083 | */ |
8e05247d HK |
1084 | ret = kfd_create_crat_image_acpi(&crat_image, &image_size); |
1085 | if (!ret) { | |
4f449311 | 1086 | ret = kfd_parse_crat_table(crat_image, |
520b8fb7 FK |
1087 | &temp_topology_device_list, |
1088 | proximity_domain); | |
b441093e HK |
1089 | if (ret || |
1090 | kfd_is_acpi_crat_invalid(&temp_topology_device_list)) { | |
520b8fb7 FK |
1091 | kfd_release_topology_device_list( |
1092 | &temp_topology_device_list); | |
1093 | kfd_destroy_crat_image(crat_image); | |
1094 | crat_image = NULL; | |
1095 | } | |
1096 | } | |
1097 | ||
1098 | if (!crat_image) { | |
1099 | ret = kfd_create_crat_image_virtual(&crat_image, &image_size, | |
1100 | COMPUTE_UNIT_CPU, NULL, | |
1101 | proximity_domain); | |
1102 | cpu_only_node = 1; | |
1103 | if (ret) { | |
1104 | pr_err("Error creating VCRAT table for CPU\n"); | |
1105 | return ret; | |
1106 | } | |
1107 | ||
1108 | ret = kfd_parse_crat_table(crat_image, | |
1109 | &temp_topology_device_list, | |
1110 | proximity_domain); | |
1111 | if (ret) { | |
1112 | pr_err("Error parsing VCRAT table for CPU\n"); | |
5b5c4e40 | 1113 | goto err; |
520b8fb7 | 1114 | } |
5b5c4e40 EP |
1115 | } |
1116 | ||
f4757347 AL |
1117 | kdev = list_first_entry(&temp_topology_device_list, |
1118 | struct kfd_topology_device, list); | |
1119 | kfd_add_perf_to_topology(kdev); | |
1120 | ||
8e05247d | 1121 | down_write(&topology_lock); |
4f449311 HK |
1122 | kfd_topology_update_device_list(&temp_topology_device_list, |
1123 | &topology_device_list); | |
46d18d51 | 1124 | topology_crat_proximity_domain = sys_props.num_devices-1; |
8e05247d HK |
1125 | ret = kfd_topology_update_sysfs(); |
1126 | up_write(&topology_lock); | |
1127 | ||
4f449311 HK |
1128 | if (!ret) { |
1129 | sys_props.generation_count++; | |
520b8fb7 FK |
1130 | kfd_update_system_properties(); |
1131 | kfd_debug_print_topology(); | |
4f449311 | 1132 | } else |
8e05247d HK |
1133 | pr_err("Failed to update topology in sysfs ret=%d\n", ret); |
1134 | ||
520b8fb7 FK |
1135 | /* For nodes with GPU, this information gets added |
1136 | * when GPU is detected (kfd_topology_add_device). | |
1137 | */ | |
1138 | if (cpu_only_node) { | |
1139 | /* Add additional information to CPU only node created above */ | |
1140 | down_write(&topology_lock); | |
1141 | kdev = list_first_entry(&topology_device_list, | |
1142 | struct kfd_topology_device, list); | |
1143 | up_write(&topology_lock); | |
1144 | kfd_add_non_crat_information(kdev); | |
1145 | } | |
1146 | ||
5b5c4e40 | 1147 | err: |
8e05247d | 1148 | kfd_destroy_crat_image(crat_image); |
5b5c4e40 EP |
1149 | return ret; |
1150 | } | |
1151 | ||
1152 | void kfd_topology_shutdown(void) | |
1153 | { | |
4f449311 | 1154 | down_write(&topology_lock); |
5b5c4e40 EP |
1155 | kfd_topology_release_sysfs(); |
1156 | kfd_release_live_view(); | |
4f449311 | 1157 | up_write(&topology_lock); |
5b5c4e40 EP |
1158 | } |
1159 | ||
5b5c4e40 EP |
1160 | static uint32_t kfd_generate_gpu_id(struct kfd_dev *gpu) |
1161 | { | |
1162 | uint32_t hashout; | |
1163 | uint32_t buf[7]; | |
585f0e6c | 1164 | uint64_t local_mem_size; |
5b5c4e40 EP |
1165 | int i; |
1166 | ||
1167 | if (!gpu) | |
1168 | return 0; | |
1169 | ||
b179fc28 MJ |
1170 | local_mem_size = gpu->local_mem_info.local_mem_size_private + |
1171 | gpu->local_mem_info.local_mem_size_public; | |
585f0e6c | 1172 | |
5b5c4e40 | 1173 | buf[0] = gpu->pdev->devfn; |
46096058 AL |
1174 | buf[1] = gpu->pdev->subsystem_vendor | |
1175 | (gpu->pdev->subsystem_device << 16); | |
1176 | buf[2] = pci_domain_nr(gpu->pdev->bus); | |
5b5c4e40 EP |
1177 | buf[3] = gpu->pdev->device; |
1178 | buf[4] = gpu->pdev->bus->number; | |
585f0e6c EC |
1179 | buf[5] = lower_32_bits(local_mem_size); |
1180 | buf[6] = upper_32_bits(local_mem_size); | |
5b5c4e40 EP |
1181 | |
1182 | for (i = 0, hashout = 0; i < 7; i++) | |
1183 | hashout ^= hash_32(buf[i], KFD_GPU_ID_HASH_WIDTH); | |
1184 | ||
1185 | return hashout; | |
1186 | } | |
3a87177e HK |
1187 | /* kfd_assign_gpu - Attach @gpu to the correct kfd topology device. If |
1188 | * the GPU device is not already present in the topology device | |
1189 | * list then return NULL. This means a new topology device has to | |
1190 | * be created for this GPU. | |
3a87177e | 1191 | */ |
5b5c4e40 EP |
1192 | static struct kfd_topology_device *kfd_assign_gpu(struct kfd_dev *gpu) |
1193 | { | |
1194 | struct kfd_topology_device *dev; | |
16b9201c | 1195 | struct kfd_topology_device *out_dev = NULL; |
171bc67e HK |
1196 | struct kfd_mem_properties *mem; |
1197 | struct kfd_cache_properties *cache; | |
1198 | struct kfd_iolink_properties *iolink; | |
0f28cca8 | 1199 | struct kfd_iolink_properties *p2plink; |
5b5c4e40 | 1200 | |
3a87177e | 1201 | down_write(&topology_lock); |
b8fe0524 FK |
1202 | list_for_each_entry(dev, &topology_device_list, list) { |
1203 | /* Discrete GPUs need their own topology device list | |
1204 | * entries. Don't assign them to CPU/APU nodes. | |
1205 | */ | |
6127896f | 1206 | if (!gpu->use_iommu_v2 && |
b8fe0524 FK |
1207 | dev->node_props.cpu_cores_count) |
1208 | continue; | |
1209 | ||
4eacc26b | 1210 | if (!dev->gpu && (dev->node_props.simd_count > 0)) { |
5b5c4e40 EP |
1211 | dev->gpu = gpu; |
1212 | out_dev = dev; | |
171bc67e HK |
1213 | |
1214 | list_for_each_entry(mem, &dev->mem_props, list) | |
1215 | mem->gpu = dev->gpu; | |
1216 | list_for_each_entry(cache, &dev->cache_props, list) | |
1217 | cache->gpu = dev->gpu; | |
1218 | list_for_each_entry(iolink, &dev->io_link_props, list) | |
1219 | iolink->gpu = dev->gpu; | |
0f28cca8 RE |
1220 | list_for_each_entry(p2plink, &dev->p2p_link_props, list) |
1221 | p2plink->gpu = dev->gpu; | |
5b5c4e40 EP |
1222 | break; |
1223 | } | |
b8fe0524 | 1224 | } |
3a87177e | 1225 | up_write(&topology_lock); |
5b5c4e40 EP |
1226 | return out_dev; |
1227 | } | |
1228 | ||
1229 | static void kfd_notify_gpu_change(uint32_t gpu_id, int arrival) | |
1230 | { | |
1231 | /* | |
1232 | * TODO: Generate an event for thunk about the arrival/removal | |
1233 | * of the GPU | |
1234 | */ | |
1235 | } | |
1236 | ||
3a87177e HK |
1237 | /* kfd_fill_mem_clk_max_info - Since CRAT doesn't have memory clock info, |
1238 | * patch this after CRAT parsing. | |
1239 | */ | |
1240 | static void kfd_fill_mem_clk_max_info(struct kfd_topology_device *dev) | |
1241 | { | |
1242 | struct kfd_mem_properties *mem; | |
1243 | struct kfd_local_mem_info local_mem_info; | |
1244 | ||
1245 | if (!dev) | |
1246 | return; | |
1247 | ||
1248 | /* Currently, amdgpu driver (amdgpu_mc) deals only with GPUs with | |
1249 | * single bank of VRAM local memory. | |
1250 | * for dGPUs - VCRAT reports only one bank of Local Memory | |
1251 | * for APUs - If CRAT from ACPI reports more than one bank, then | |
1252 | * all the banks will report the same mem_clk_max information | |
1253 | */ | |
574c4183 | 1254 | amdgpu_amdkfd_get_local_mem_info(dev->gpu->adev, &local_mem_info); |
3a87177e HK |
1255 | |
1256 | list_for_each_entry(mem, &dev->mem_props, list) | |
1257 | mem->mem_clk_max = local_mem_info.mem_clk_max; | |
1258 | } | |
1259 | ||
bdd24657 JK |
1260 | static void kfd_set_iolink_no_atomics(struct kfd_topology_device *dev, |
1261 | struct kfd_topology_device *target_gpu_dev, | |
1262 | struct kfd_iolink_properties *link) | |
3a87177e | 1263 | { |
bdd24657 JK |
1264 | /* xgmi always supports atomics between links. */ |
1265 | if (link->iolink_type == CRAT_IOLINK_TYPE_XGMI) | |
3a87177e HK |
1266 | return; |
1267 | ||
bdd24657 JK |
1268 | /* check pcie support to set cpu(dev) flags for target_gpu_dev link. */ |
1269 | if (target_gpu_dev) { | |
1270 | uint32_t cap; | |
1271 | ||
1272 | pcie_capability_read_dword(target_gpu_dev->gpu->pdev, | |
deb68983 | 1273 | PCI_EXP_DEVCAP2, &cap); |
d35f00d8 | 1274 | |
deb68983 JK |
1275 | if (!(cap & (PCI_EXP_DEVCAP2_ATOMIC_COMP32 | |
1276 | PCI_EXP_DEVCAP2_ATOMIC_COMP64))) | |
bdd24657 | 1277 | link->flags |= CRAT_IOLINK_FLAGS_NO_ATOMICS_32_BIT | |
deb68983 | 1278 | CRAT_IOLINK_FLAGS_NO_ATOMICS_64_BIT; |
bdd24657 JK |
1279 | /* set gpu (dev) flags. */ |
1280 | } else { | |
deb68983 | 1281 | if (!dev->gpu->pci_atomic_requested || |
7eb0502a | 1282 | dev->gpu->adev->asic_type == CHIP_HAWAII) |
bdd24657 | 1283 | link->flags |= CRAT_IOLINK_FLAGS_NO_ATOMICS_32_BIT | |
deb68983 JK |
1284 | CRAT_IOLINK_FLAGS_NO_ATOMICS_64_BIT; |
1285 | } | |
bdd24657 JK |
1286 | } |
1287 | ||
c9cfbf7f EH |
1288 | static void kfd_set_iolink_non_coherent(struct kfd_topology_device *to_dev, |
1289 | struct kfd_iolink_properties *outbound_link, | |
1290 | struct kfd_iolink_properties *inbound_link) | |
1291 | { | |
1292 | /* CPU -> GPU with PCIe */ | |
1293 | if (!to_dev->gpu && | |
1294 | inbound_link->iolink_type == CRAT_IOLINK_TYPE_PCIEXPRESS) | |
1295 | inbound_link->flags |= CRAT_IOLINK_FLAGS_NON_COHERENT; | |
1296 | ||
1297 | if (to_dev->gpu) { | |
1298 | /* GPU <-> GPU with PCIe and | |
1299 | * Vega20 with XGMI | |
1300 | */ | |
1301 | if (inbound_link->iolink_type == CRAT_IOLINK_TYPE_PCIEXPRESS || | |
1302 | (inbound_link->iolink_type == CRAT_IOLINK_TYPE_XGMI && | |
046e674b | 1303 | KFD_GC_VERSION(to_dev->gpu) == IP_VERSION(9, 4, 0))) { |
c9cfbf7f EH |
1304 | outbound_link->flags |= CRAT_IOLINK_FLAGS_NON_COHERENT; |
1305 | inbound_link->flags |= CRAT_IOLINK_FLAGS_NON_COHERENT; | |
1306 | } | |
1307 | } | |
1308 | } | |
1309 | ||
bdd24657 JK |
1310 | static void kfd_fill_iolink_non_crat_info(struct kfd_topology_device *dev) |
1311 | { | |
1312 | struct kfd_iolink_properties *link, *inbound_link; | |
1313 | struct kfd_topology_device *peer_dev; | |
1314 | ||
1315 | if (!dev || !dev->gpu) | |
1316 | return; | |
d35f00d8 EH |
1317 | |
1318 | /* GPU only creates direct links so apply flags setting to all */ | |
1319 | list_for_each_entry(link, &dev->io_link_props, list) { | |
bdd24657 JK |
1320 | link->flags = CRAT_IOLINK_FLAGS_ENABLED; |
1321 | kfd_set_iolink_no_atomics(dev, NULL, link); | |
1322 | peer_dev = kfd_topology_device_by_proximity_domain( | |
d35f00d8 | 1323 | link->node_to); |
bdd24657 JK |
1324 | |
1325 | if (!peer_dev) | |
1326 | continue; | |
1327 | ||
a0af5dbd JK |
1328 | /* Include the CPU peer in GPU hive if connected over xGMI. */ |
1329 | if (!peer_dev->gpu && !peer_dev->node_props.hive_id && | |
1330 | dev->node_props.hive_id && | |
1331 | dev->gpu->adev->gmc.xgmi.connected_to_cpu) | |
1332 | peer_dev->node_props.hive_id = dev->node_props.hive_id; | |
1333 | ||
bdd24657 JK |
1334 | list_for_each_entry(inbound_link, &peer_dev->io_link_props, |
1335 | list) { | |
1336 | if (inbound_link->node_to != link->node_from) | |
1337 | continue; | |
1338 | ||
1339 | inbound_link->flags = CRAT_IOLINK_FLAGS_ENABLED; | |
1340 | kfd_set_iolink_no_atomics(peer_dev, dev, inbound_link); | |
c9cfbf7f | 1341 | kfd_set_iolink_non_coherent(peer_dev, link, inbound_link); |
d35f00d8 EH |
1342 | } |
1343 | } | |
0f28cca8 RE |
1344 | |
1345 | /* Create indirect links so apply flags setting to all */ | |
1346 | list_for_each_entry(link, &dev->p2p_link_props, list) { | |
1347 | link->flags = CRAT_IOLINK_FLAGS_ENABLED; | |
1348 | kfd_set_iolink_no_atomics(dev, NULL, link); | |
1349 | peer_dev = kfd_topology_device_by_proximity_domain( | |
1350 | link->node_to); | |
1351 | ||
1352 | if (!peer_dev) | |
1353 | continue; | |
1354 | ||
1355 | list_for_each_entry(inbound_link, &peer_dev->p2p_link_props, | |
1356 | list) { | |
1357 | if (inbound_link->node_to != link->node_from) | |
1358 | continue; | |
1359 | ||
1360 | inbound_link->flags = CRAT_IOLINK_FLAGS_ENABLED; | |
1361 | kfd_set_iolink_no_atomics(peer_dev, dev, inbound_link); | |
1362 | kfd_set_iolink_non_coherent(peer_dev, link, inbound_link); | |
1363 | } | |
1364 | } | |
1365 | } | |
1366 | ||
1367 | static int kfd_build_p2p_node_entry(struct kfd_topology_device *dev, | |
1368 | struct kfd_iolink_properties *p2plink) | |
1369 | { | |
1370 | int ret; | |
1371 | ||
1372 | p2plink->kobj = kzalloc(sizeof(struct kobject), GFP_KERNEL); | |
1373 | if (!p2plink->kobj) | |
1374 | return -ENOMEM; | |
1375 | ||
1376 | ret = kobject_init_and_add(p2plink->kobj, &iolink_type, | |
1377 | dev->kobj_p2plink, "%d", dev->node_props.p2p_links_count - 1); | |
1378 | if (ret < 0) { | |
1379 | kobject_put(p2plink->kobj); | |
1380 | return ret; | |
1381 | } | |
1382 | ||
1383 | p2plink->attr.name = "properties"; | |
1384 | p2plink->attr.mode = KFD_SYSFS_FILE_MODE; | |
1385 | sysfs_attr_init(&p2plink->attr); | |
1386 | ret = sysfs_create_file(p2plink->kobj, &p2plink->attr); | |
1387 | if (ret < 0) | |
1388 | return ret; | |
1389 | ||
1390 | return 0; | |
1391 | } | |
1392 | ||
1393 | static int kfd_create_indirect_link_prop(struct kfd_topology_device *kdev, int gpu_node) | |
1394 | { | |
7d50b92d | 1395 | struct kfd_iolink_properties *gpu_link, *tmp_link, *cpu_link; |
0f28cca8 | 1396 | struct kfd_iolink_properties *props = NULL, *props2 = NULL; |
0f28cca8 RE |
1397 | struct kfd_topology_device *cpu_dev; |
1398 | int ret = 0; | |
1399 | int i, num_cpu; | |
1400 | ||
1401 | num_cpu = 0; | |
1402 | list_for_each_entry(cpu_dev, &topology_device_list, list) { | |
1403 | if (cpu_dev->gpu) | |
1404 | break; | |
1405 | num_cpu++; | |
1406 | } | |
1407 | ||
1408 | gpu_link = list_first_entry(&kdev->io_link_props, | |
1409 | struct kfd_iolink_properties, list); | |
1410 | if (!gpu_link) | |
1411 | return -ENOMEM; | |
1412 | ||
1413 | for (i = 0; i < num_cpu; i++) { | |
1414 | /* CPU <--> GPU */ | |
1415 | if (gpu_link->node_to == i) | |
1416 | continue; | |
1417 | ||
1418 | /* find CPU <--> CPU links */ | |
7d50b92d | 1419 | cpu_link = NULL; |
0f28cca8 RE |
1420 | cpu_dev = kfd_topology_device_by_proximity_domain(i); |
1421 | if (cpu_dev) { | |
7d50b92d | 1422 | list_for_each_entry(tmp_link, |
0f28cca8 | 1423 | &cpu_dev->io_link_props, list) { |
7d50b92d DC |
1424 | if (tmp_link->node_to == gpu_link->node_to) { |
1425 | cpu_link = tmp_link; | |
0f28cca8 | 1426 | break; |
7d50b92d | 1427 | } |
0f28cca8 RE |
1428 | } |
1429 | } | |
1430 | ||
7d50b92d | 1431 | if (!cpu_link) |
0f28cca8 RE |
1432 | return -ENOMEM; |
1433 | ||
1434 | /* CPU <--> CPU <--> GPU, GPU node*/ | |
1435 | props = kfd_alloc_struct(props); | |
1436 | if (!props) | |
1437 | return -ENOMEM; | |
1438 | ||
1439 | memcpy(props, gpu_link, sizeof(struct kfd_iolink_properties)); | |
1440 | props->weight = gpu_link->weight + cpu_link->weight; | |
1441 | props->min_latency = gpu_link->min_latency + cpu_link->min_latency; | |
1442 | props->max_latency = gpu_link->max_latency + cpu_link->max_latency; | |
1443 | props->min_bandwidth = min(gpu_link->min_bandwidth, cpu_link->min_bandwidth); | |
1444 | props->max_bandwidth = min(gpu_link->max_bandwidth, cpu_link->max_bandwidth); | |
1445 | ||
1446 | props->node_from = gpu_node; | |
1447 | props->node_to = i; | |
1448 | kdev->node_props.p2p_links_count++; | |
1449 | list_add_tail(&props->list, &kdev->p2p_link_props); | |
1450 | ret = kfd_build_p2p_node_entry(kdev, props); | |
1451 | if (ret < 0) | |
1452 | return ret; | |
1453 | ||
1454 | /* for small Bar, no CPU --> GPU in-direct links */ | |
1455 | if (kfd_dev_is_large_bar(kdev->gpu)) { | |
1456 | /* CPU <--> CPU <--> GPU, CPU node*/ | |
1457 | props2 = kfd_alloc_struct(props2); | |
1458 | if (!props2) | |
1459 | return -ENOMEM; | |
1460 | ||
1461 | memcpy(props2, props, sizeof(struct kfd_iolink_properties)); | |
1462 | props2->node_from = i; | |
1463 | props2->node_to = gpu_node; | |
1464 | props2->kobj = NULL; | |
1465 | cpu_dev->node_props.p2p_links_count++; | |
1466 | list_add_tail(&props2->list, &cpu_dev->p2p_link_props); | |
1467 | ret = kfd_build_p2p_node_entry(cpu_dev, props2); | |
1468 | if (ret < 0) | |
1469 | return ret; | |
1470 | } | |
1471 | } | |
1472 | return ret; | |
1473 | } | |
1474 | ||
1475 | #if defined(CONFIG_HSA_AMD_P2P) | |
1476 | static int kfd_add_peer_prop(struct kfd_topology_device *kdev, | |
1477 | struct kfd_topology_device *peer, int from, int to) | |
1478 | { | |
1479 | struct kfd_iolink_properties *props = NULL; | |
1480 | struct kfd_iolink_properties *iolink1, *iolink2, *iolink3; | |
1481 | struct kfd_topology_device *cpu_dev; | |
1482 | int ret = 0; | |
1483 | ||
1484 | if (!amdgpu_device_is_peer_accessible( | |
1485 | kdev->gpu->adev, | |
1486 | peer->gpu->adev)) | |
1487 | return ret; | |
1488 | ||
1489 | iolink1 = list_first_entry(&kdev->io_link_props, | |
1490 | struct kfd_iolink_properties, list); | |
1491 | if (!iolink1) | |
1492 | return -ENOMEM; | |
1493 | ||
1494 | iolink2 = list_first_entry(&peer->io_link_props, | |
1495 | struct kfd_iolink_properties, list); | |
1496 | if (!iolink2) | |
1497 | return -ENOMEM; | |
1498 | ||
1499 | props = kfd_alloc_struct(props); | |
1500 | if (!props) | |
1501 | return -ENOMEM; | |
1502 | ||
1503 | memcpy(props, iolink1, sizeof(struct kfd_iolink_properties)); | |
1504 | ||
1505 | props->weight = iolink1->weight + iolink2->weight; | |
1506 | props->min_latency = iolink1->min_latency + iolink2->min_latency; | |
1507 | props->max_latency = iolink1->max_latency + iolink2->max_latency; | |
1508 | props->min_bandwidth = min(iolink1->min_bandwidth, iolink2->min_bandwidth); | |
1509 | props->max_bandwidth = min(iolink2->max_bandwidth, iolink2->max_bandwidth); | |
1510 | ||
1511 | if (iolink1->node_to != iolink2->node_to) { | |
1512 | /* CPU->CPU link*/ | |
1513 | cpu_dev = kfd_topology_device_by_proximity_domain(iolink1->node_to); | |
1514 | if (cpu_dev) { | |
1515 | list_for_each_entry(iolink3, &cpu_dev->io_link_props, list) | |
1516 | if (iolink3->node_to == iolink2->node_to) | |
1517 | break; | |
1518 | ||
1519 | props->weight += iolink3->weight; | |
1520 | props->min_latency += iolink3->min_latency; | |
1521 | props->max_latency += iolink3->max_latency; | |
1522 | props->min_bandwidth = min(props->min_bandwidth, | |
1523 | iolink3->min_bandwidth); | |
1524 | props->max_bandwidth = min(props->max_bandwidth, | |
1525 | iolink3->max_bandwidth); | |
1526 | } else { | |
1527 | WARN(1, "CPU node not found"); | |
1528 | } | |
1529 | } | |
1530 | ||
1531 | props->node_from = from; | |
1532 | props->node_to = to; | |
1533 | peer->node_props.p2p_links_count++; | |
1534 | list_add_tail(&props->list, &peer->p2p_link_props); | |
1535 | ret = kfd_build_p2p_node_entry(peer, props); | |
1536 | ||
1537 | return ret; | |
1538 | } | |
1539 | #endif | |
1540 | ||
1541 | static int kfd_dev_create_p2p_links(void) | |
1542 | { | |
1543 | struct kfd_topology_device *dev; | |
1544 | struct kfd_topology_device *new_dev; | |
914da384 AD |
1545 | #if defined(CONFIG_HSA_AMD_P2P) |
1546 | uint32_t i; | |
1547 | #endif | |
1548 | uint32_t k; | |
0f28cca8 RE |
1549 | int ret = 0; |
1550 | ||
1551 | k = 0; | |
1552 | list_for_each_entry(dev, &topology_device_list, list) | |
1553 | k++; | |
1554 | if (k < 2) | |
1555 | return 0; | |
1556 | ||
1557 | new_dev = list_last_entry(&topology_device_list, struct kfd_topology_device, list); | |
1558 | if (WARN_ON(!new_dev->gpu)) | |
1559 | return 0; | |
1560 | ||
1561 | k--; | |
0f28cca8 RE |
1562 | |
1563 | /* create in-direct links */ | |
1564 | ret = kfd_create_indirect_link_prop(new_dev, k); | |
1565 | if (ret < 0) | |
1566 | goto out; | |
1567 | ||
1568 | /* create p2p links */ | |
1569 | #if defined(CONFIG_HSA_AMD_P2P) | |
914da384 | 1570 | i = 0; |
0f28cca8 RE |
1571 | list_for_each_entry(dev, &topology_device_list, list) { |
1572 | if (dev == new_dev) | |
1573 | break; | |
1574 | if (!dev->gpu || !dev->gpu->adev || | |
1575 | (dev->gpu->hive_id && | |
1576 | dev->gpu->hive_id == new_dev->gpu->hive_id)) | |
1577 | goto next; | |
1578 | ||
1579 | /* check if node(s) is/are peer accessible in one direction or bi-direction */ | |
1580 | ret = kfd_add_peer_prop(new_dev, dev, i, k); | |
1581 | if (ret < 0) | |
1582 | goto out; | |
1583 | ||
1584 | ret = kfd_add_peer_prop(dev, new_dev, k, i); | |
1585 | if (ret < 0) | |
1586 | goto out; | |
1587 | next: | |
1588 | i++; | |
1589 | } | |
1590 | #endif | |
1591 | ||
1592 | out: | |
1593 | return ret; | |
3a87177e HK |
1594 | } |
1595 | ||
5b5c4e40 EP |
1596 | int kfd_topology_add_device(struct kfd_dev *gpu) |
1597 | { | |
1598 | uint32_t gpu_id; | |
1599 | struct kfd_topology_device *dev; | |
f7ce2fad | 1600 | struct kfd_cu_info cu_info; |
4f449311 HK |
1601 | int res = 0; |
1602 | struct list_head temp_topology_device_list; | |
3a87177e HK |
1603 | void *crat_image = NULL; |
1604 | size_t image_size = 0; | |
1605 | int proximity_domain; | |
b7675b7b GS |
1606 | int i; |
1607 | const char *asic_name = amdgpu_asic_name[gpu->adev->asic_type]; | |
4f449311 HK |
1608 | |
1609 | INIT_LIST_HEAD(&temp_topology_device_list); | |
5b5c4e40 | 1610 | |
5b5c4e40 | 1611 | gpu_id = kfd_generate_gpu_id(gpu); |
79775b62 | 1612 | pr_debug("Adding new GPU (ID: 0x%x) to topology\n", gpu_id); |
5b5c4e40 | 1613 | |
3a87177e HK |
1614 | /* Check to see if this gpu device exists in the topology_device_list. |
1615 | * If so, assign the gpu to that device, | |
1616 | * else create a Virtual CRAT for this gpu device and then parse that | |
1617 | * CRAT to create a new topology device. Once created assign the gpu to | |
1618 | * that topology device | |
5b5c4e40 EP |
1619 | */ |
1620 | dev = kfd_assign_gpu(gpu); | |
1621 | if (!dev) { | |
46d18d51 MJ |
1622 | down_write(&topology_lock); |
1623 | proximity_domain = ++topology_crat_proximity_domain; | |
1624 | ||
3a87177e HK |
1625 | res = kfd_create_crat_image_virtual(&crat_image, &image_size, |
1626 | COMPUTE_UNIT_GPU, gpu, | |
1627 | proximity_domain); | |
1628 | if (res) { | |
1629 | pr_err("Error creating VCRAT for GPU (ID: 0x%x)\n", | |
1630 | gpu_id); | |
46d18d51 | 1631 | topology_crat_proximity_domain--; |
3a87177e HK |
1632 | return res; |
1633 | } | |
1634 | res = kfd_parse_crat_table(crat_image, | |
1635 | &temp_topology_device_list, | |
1636 | proximity_domain); | |
1637 | if (res) { | |
1638 | pr_err("Error parsing VCRAT for GPU (ID: 0x%x)\n", | |
1639 | gpu_id); | |
46d18d51 | 1640 | topology_crat_proximity_domain--; |
5b5c4e40 EP |
1641 | goto err; |
1642 | } | |
4f449311 | 1643 | |
4f449311 HK |
1644 | kfd_topology_update_device_list(&temp_topology_device_list, |
1645 | &topology_device_list); | |
1646 | ||
8eabaf54 KR |
1647 | /* Update the SYSFS tree, since we added another topology |
1648 | * device | |
5b5c4e40 | 1649 | */ |
3a87177e | 1650 | res = kfd_topology_update_sysfs(); |
4f449311 HK |
1651 | up_write(&topology_lock); |
1652 | ||
3a87177e HK |
1653 | if (!res) |
1654 | sys_props.generation_count++; | |
1655 | else | |
1656 | pr_err("Failed to update GPU (ID: 0x%x) to sysfs topology. res=%d\n", | |
1657 | gpu_id, res); | |
1658 | dev = kfd_assign_gpu(gpu); | |
1659 | if (WARN_ON(!dev)) { | |
1660 | res = -ENODEV; | |
1661 | goto err; | |
1662 | } | |
5b5c4e40 EP |
1663 | } |
1664 | ||
1665 | dev->gpu_id = gpu_id; | |
1666 | gpu->id = gpu_id; | |
3a87177e | 1667 | |
0f28cca8 RE |
1668 | kfd_dev_create_p2p_links(); |
1669 | ||
3a87177e HK |
1670 | /* TODO: Move the following lines to function |
1671 | * kfd_add_non_crat_information | |
1672 | */ | |
1673 | ||
1674 | /* Fill-in additional information that is not available in CRAT but | |
1675 | * needed for the topology | |
1676 | */ | |
1677 | ||
574c4183 | 1678 | amdgpu_amdkfd_get_cu_info(dev->gpu->adev, &cu_info); |
c181159a | 1679 | |
b7675b7b GS |
1680 | for (i = 0; i < KFD_TOPOLOGY_PUBLIC_NAME_SIZE-1; i++) { |
1681 | dev->node_props.name[i] = __tolower(asic_name[i]); | |
1682 | if (asic_name[i] == '\0') | |
1683 | break; | |
1684 | } | |
1685 | dev->node_props.name[i] = '\0'; | |
c181159a | 1686 | |
3a87177e HK |
1687 | dev->node_props.simd_arrays_per_engine = |
1688 | cu_info.num_shader_arrays_per_engine; | |
1689 | ||
f0dc99a6 | 1690 | dev->node_props.gfx_target_version = gpu->device_info.gfx_target_version; |
5b5c4e40 EP |
1691 | dev->node_props.vendor_id = gpu->pdev->vendor; |
1692 | dev->node_props.device_id = gpu->pdev->device; | |
c6d1ec41 | 1693 | dev->node_props.capability |= |
02274fc0 | 1694 | ((dev->gpu->adev->rev_id << HSA_CAP_ASIC_REVISION_SHIFT) & |
c6d1ec41 | 1695 | HSA_CAP_ASIC_REVISION_MASK); |
babe2ef3 | 1696 | dev->node_props.location_id = pci_dev_id(gpu->pdev); |
3e58e95a | 1697 | dev->node_props.domain = pci_domain_nr(gpu->pdev->bus); |
3a87177e | 1698 | dev->node_props.max_engine_clk_fcompute = |
574c4183 | 1699 | amdgpu_amdkfd_get_max_engine_clock_in_mhz(dev->gpu->adev); |
3a87177e HK |
1700 | dev->node_props.max_engine_clk_ccompute = |
1701 | cpufreq_quick_get_max(0) / 1000; | |
7c9b7171 OZ |
1702 | dev->node_props.drm_render_minor = |
1703 | gpu->shared_resources.drm_render_minor; | |
3a87177e | 1704 | |
0c1690e3 | 1705 | dev->node_props.hive_id = gpu->hive_id; |
ee2f17f4 | 1706 | dev->node_props.num_sdma_engines = kfd_get_num_sdma_engines(gpu); |
14568cf6 | 1707 | dev->node_props.num_sdma_xgmi_engines = |
ee2f17f4 | 1708 | kfd_get_num_xgmi_sdma_engines(gpu); |
bb71c74d | 1709 | dev->node_props.num_sdma_queues_per_engine = |
cc009e61 MJ |
1710 | gpu->device_info.num_sdma_queues_per_engine - |
1711 | gpu->device_info.num_reserved_sdma_queues_per_engine; | |
29633d0e | 1712 | dev->node_props.num_gws = (dev->gpu->gws && |
29e76462 | 1713 | dev->gpu->dqm->sched_policy != KFD_SCHED_POLICY_NO_HWS) ? |
02274fc0 | 1714 | dev->gpu->adev->gds.gws_size : 0; |
e6945304 | 1715 | dev->node_props.num_cp_queues = get_cp_queues_num(dev->gpu->dqm); |
0c1690e3 | 1716 | |
3a87177e HK |
1717 | kfd_fill_mem_clk_max_info(dev); |
1718 | kfd_fill_iolink_non_crat_info(dev); | |
1719 | ||
7eb0502a | 1720 | switch (dev->gpu->adev->asic_type) { |
3a87177e HK |
1721 | case CHIP_KAVERI: |
1722 | case CHIP_HAWAII: | |
1723 | case CHIP_TONGA: | |
1724 | dev->node_props.capability |= ((HSA_CAP_DOORBELL_TYPE_PRE_1_0 << | |
1725 | HSA_CAP_DOORBELL_TYPE_TOTALBITS_SHIFT) & | |
1726 | HSA_CAP_DOORBELL_TYPE_TOTALBITS_MASK); | |
1727 | break; | |
1728 | case CHIP_CARRIZO: | |
1729 | case CHIP_FIJI: | |
1730 | case CHIP_POLARIS10: | |
1731 | case CHIP_POLARIS11: | |
846a44d7 | 1732 | case CHIP_POLARIS12: |
ed81cd6e | 1733 | case CHIP_VEGAM: |
42aa8793 | 1734 | pr_debug("Adding doorbell packet type capability\n"); |
3a87177e HK |
1735 | dev->node_props.capability |= ((HSA_CAP_DOORBELL_TYPE_1_0 << |
1736 | HSA_CAP_DOORBELL_TYPE_TOTALBITS_SHIFT) & | |
1737 | HSA_CAP_DOORBELL_TYPE_TOTALBITS_MASK); | |
1738 | break; | |
1739 | default: | |
e4804a39 GS |
1740 | if (KFD_GC_VERSION(dev->gpu) >= IP_VERSION(9, 0, 1)) |
1741 | dev->node_props.capability |= ((HSA_CAP_DOORBELL_TYPE_2_0 << | |
1742 | HSA_CAP_DOORBELL_TYPE_TOTALBITS_SHIFT) & | |
1743 | HSA_CAP_DOORBELL_TYPE_TOTALBITS_MASK); | |
1744 | else | |
1745 | WARN(1, "Unexpected ASIC family %u", | |
7eb0502a | 1746 | dev->gpu->adev->asic_type); |
7639a8c4 BG |
1747 | } |
1748 | ||
1ae99eab | 1749 | /* |
2243f493 RB |
1750 | * Overwrite ATS capability according to needs_iommu_device to fix |
1751 | * potential missing corresponding bit in CRAT of BIOS. | |
1752 | */ | |
6127896f | 1753 | if (dev->gpu->use_iommu_v2) |
1ae99eab OZ |
1754 | dev->node_props.capability |= HSA_CAP_ATS_PRESENT; |
1755 | else | |
1756 | dev->node_props.capability &= ~HSA_CAP_ATS_PRESENT; | |
1757 | ||
3a87177e HK |
1758 | /* Fix errors in CZ CRAT. |
1759 | * simd_count: Carrizo CRAT reports wrong simd_count, probably | |
1760 | * because it doesn't consider masked out CUs | |
70f372bf | 1761 | * max_waves_per_simd: Carrizo reports wrong max_waves_per_simd |
3a87177e | 1762 | */ |
7eb0502a | 1763 | if (dev->gpu->adev->asic_type == CHIP_CARRIZO) { |
3a87177e HK |
1764 | dev->node_props.simd_count = |
1765 | cu_info.simd_per_cu * cu_info.cu_active_number; | |
70f372bf | 1766 | dev->node_props.max_waves_per_simd = 10; |
70f372bf | 1767 | } |
3a87177e | 1768 | |
5436ab94 SY |
1769 | /* kfd only concerns sram ecc on GFX and HBM ecc on UMC */ |
1770 | dev->node_props.capability |= | |
56c5977e | 1771 | ((dev->gpu->adev->ras_enabled & BIT(AMDGPU_RAS_BLOCK__GFX)) != 0) ? |
5436ab94 | 1772 | HSA_CAP_SRAM_EDCSUPPORTED : 0; |
56c5977e GS |
1773 | dev->node_props.capability |= |
1774 | ((dev->gpu->adev->ras_enabled & BIT(AMDGPU_RAS_BLOCK__UMC)) != 0) ? | |
5436ab94 SY |
1775 | HSA_CAP_MEM_EDCSUPPORTED : 0; |
1776 | ||
046e674b | 1777 | if (KFD_GC_VERSION(dev->gpu) != IP_VERSION(9, 0, 1)) |
56c5977e | 1778 | dev->node_props.capability |= (dev->gpu->adev->ras_enabled != 0) ? |
0dee45a2 | 1779 | HSA_CAP_RASEVENTNOTIFY : 0; |
0dee45a2 | 1780 | |
56c5977e | 1781 | if (KFD_IS_SVM_API_SUPPORTED(dev->gpu->adev->kfd.dev)) |
4c166eb9 PY |
1782 | dev->node_props.capability |= HSA_CAP_SVMAPI_SUPPORTED; |
1783 | ||
3a87177e HK |
1784 | kfd_debug_print_topology(); |
1785 | ||
4f449311 | 1786 | if (!res) |
5b5c4e40 | 1787 | kfd_notify_gpu_change(gpu_id, 1); |
4f449311 | 1788 | err: |
3a87177e | 1789 | kfd_destroy_crat_image(crat_image); |
5b5c4e40 EP |
1790 | return res; |
1791 | } | |
1792 | ||
46d18d51 MJ |
1793 | /** |
1794 | * kfd_topology_update_io_links() - Update IO links after device removal. | |
1795 | * @proximity_domain: Proximity domain value of the dev being removed. | |
1796 | * | |
1797 | * The topology list currently is arranged in increasing order of | |
1798 | * proximity domain. | |
1799 | * | |
1800 | * Two things need to be done when a device is removed: | |
1801 | * 1. All the IO links to this device need to be removed. | |
1802 | * 2. All nodes after the current device node need to move | |
1803 | * up once this device node is removed from the topology | |
1804 | * list. As a result, the proximity domain values for | |
1805 | * all nodes after the node being deleted reduce by 1. | |
1806 | * This would also cause the proximity domain values for | |
1807 | * io links to be updated based on new proximity domain | |
1808 | * values. | |
1809 | * | |
1810 | * Context: The caller must hold write topology_lock. | |
1811 | */ | |
1812 | static void kfd_topology_update_io_links(int proximity_domain) | |
1813 | { | |
1814 | struct kfd_topology_device *dev; | |
0f28cca8 | 1815 | struct kfd_iolink_properties *iolink, *p2plink, *tmp; |
46d18d51 MJ |
1816 | |
1817 | list_for_each_entry(dev, &topology_device_list, list) { | |
1818 | if (dev->proximity_domain > proximity_domain) | |
1819 | dev->proximity_domain--; | |
1820 | ||
1821 | list_for_each_entry_safe(iolink, tmp, &dev->io_link_props, list) { | |
1822 | /* | |
1823 | * If there is an io link to the dev being deleted | |
1824 | * then remove that IO link also. | |
1825 | */ | |
1826 | if (iolink->node_to == proximity_domain) { | |
1827 | list_del(&iolink->list); | |
46d18d51 | 1828 | dev->node_props.io_links_count--; |
98447635 MJ |
1829 | } else { |
1830 | if (iolink->node_from > proximity_domain) | |
1831 | iolink->node_from--; | |
1832 | if (iolink->node_to > proximity_domain) | |
1833 | iolink->node_to--; | |
46d18d51 MJ |
1834 | } |
1835 | } | |
0f28cca8 RE |
1836 | |
1837 | list_for_each_entry_safe(p2plink, tmp, &dev->p2p_link_props, list) { | |
1838 | /* | |
1839 | * If there is a p2p link to the dev being deleted | |
1840 | * then remove that p2p link also. | |
1841 | */ | |
1842 | if (p2plink->node_to == proximity_domain) { | |
1843 | list_del(&p2plink->list); | |
1844 | dev->node_props.p2p_links_count--; | |
1845 | } else { | |
1846 | if (p2plink->node_from > proximity_domain) | |
1847 | p2plink->node_from--; | |
1848 | if (p2plink->node_to > proximity_domain) | |
1849 | p2plink->node_to--; | |
1850 | } | |
1851 | } | |
46d18d51 MJ |
1852 | } |
1853 | } | |
1854 | ||
5b5c4e40 EP |
1855 | int kfd_topology_remove_device(struct kfd_dev *gpu) |
1856 | { | |
4f449311 | 1857 | struct kfd_topology_device *dev, *tmp; |
5b5c4e40 EP |
1858 | uint32_t gpu_id; |
1859 | int res = -ENODEV; | |
46d18d51 | 1860 | int i = 0; |
5b5c4e40 | 1861 | |
5b5c4e40 EP |
1862 | down_write(&topology_lock); |
1863 | ||
46d18d51 | 1864 | list_for_each_entry_safe(dev, tmp, &topology_device_list, list) { |
5b5c4e40 EP |
1865 | if (dev->gpu == gpu) { |
1866 | gpu_id = dev->gpu_id; | |
1867 | kfd_remove_sysfs_node_entry(dev); | |
1868 | kfd_release_topology_device(dev); | |
4f449311 | 1869 | sys_props.num_devices--; |
46d18d51 MJ |
1870 | kfd_topology_update_io_links(i); |
1871 | topology_crat_proximity_domain = sys_props.num_devices-1; | |
1872 | sys_props.generation_count++; | |
5b5c4e40 EP |
1873 | res = 0; |
1874 | if (kfd_topology_update_sysfs() < 0) | |
1875 | kfd_topology_release_sysfs(); | |
1876 | break; | |
1877 | } | |
46d18d51 MJ |
1878 | i++; |
1879 | } | |
5b5c4e40 EP |
1880 | |
1881 | up_write(&topology_lock); | |
1882 | ||
174de876 | 1883 | if (!res) |
5b5c4e40 EP |
1884 | kfd_notify_gpu_change(gpu_id, 0); |
1885 | ||
1886 | return res; | |
1887 | } | |
1888 | ||
6d82eb0e HK |
1889 | /* kfd_topology_enum_kfd_devices - Enumerate through all devices in KFD |
1890 | * topology. If GPU device is found @idx, then valid kfd_dev pointer is | |
1891 | * returned through @kdev | |
1892 | * Return - 0: On success (@kdev will be NULL for non GPU nodes) | |
1893 | * -1: If end of list | |
5b5c4e40 | 1894 | */ |
6d82eb0e | 1895 | int kfd_topology_enum_kfd_devices(uint8_t idx, struct kfd_dev **kdev) |
5b5c4e40 EP |
1896 | { |
1897 | ||
1898 | struct kfd_topology_device *top_dev; | |
5b5c4e40 EP |
1899 | uint8_t device_idx = 0; |
1900 | ||
6d82eb0e | 1901 | *kdev = NULL; |
5b5c4e40 EP |
1902 | down_read(&topology_lock); |
1903 | ||
1904 | list_for_each_entry(top_dev, &topology_device_list, list) { | |
1905 | if (device_idx == idx) { | |
6d82eb0e HK |
1906 | *kdev = top_dev->gpu; |
1907 | up_read(&topology_lock); | |
1908 | return 0; | |
5b5c4e40 EP |
1909 | } |
1910 | ||
1911 | device_idx++; | |
1912 | } | |
1913 | ||
1914 | up_read(&topology_lock); | |
1915 | ||
6d82eb0e | 1916 | return -1; |
5b5c4e40 EP |
1917 | |
1918 | } | |
851a645e | 1919 | |
520b8fb7 FK |
1920 | static int kfd_cpumask_to_apic_id(const struct cpumask *cpumask) |
1921 | { | |
520b8fb7 FK |
1922 | int first_cpu_of_numa_node; |
1923 | ||
1924 | if (!cpumask || cpumask == cpu_none_mask) | |
1925 | return -1; | |
1926 | first_cpu_of_numa_node = cpumask_first(cpumask); | |
1927 | if (first_cpu_of_numa_node >= nr_cpu_ids) | |
1928 | return -1; | |
df1dd4f4 FK |
1929 | #ifdef CONFIG_X86_64 |
1930 | return cpu_data(first_cpu_of_numa_node).apicid; | |
1931 | #else | |
1932 | return first_cpu_of_numa_node; | |
1933 | #endif | |
520b8fb7 FK |
1934 | } |
1935 | ||
1936 | /* kfd_numa_node_to_apic_id - Returns the APIC ID of the first logical processor | |
1937 | * of the given NUMA node (numa_node_id) | |
1938 | * Return -1 on failure | |
1939 | */ | |
1940 | int kfd_numa_node_to_apic_id(int numa_node_id) | |
1941 | { | |
1942 | if (numa_node_id == -1) { | |
1943 | pr_warn("Invalid NUMA Node. Use online CPU mask\n"); | |
1944 | return kfd_cpumask_to_apic_id(cpu_online_mask); | |
1945 | } | |
1946 | return kfd_cpumask_to_apic_id(cpumask_of_node(numa_node_id)); | |
1947 | } | |
1948 | ||
6127896f HR |
1949 | void kfd_double_confirm_iommu_support(struct kfd_dev *gpu) |
1950 | { | |
1951 | struct kfd_topology_device *dev; | |
1952 | ||
1953 | gpu->use_iommu_v2 = false; | |
1954 | ||
f0dc99a6 | 1955 | if (!gpu->device_info.needs_iommu_device) |
6127896f HR |
1956 | return; |
1957 | ||
1958 | down_read(&topology_lock); | |
1959 | ||
1960 | /* Only use IOMMUv2 if there is an APU topology node with no GPU | |
1961 | * assigned yet. This GPU will be assigned to it. | |
1962 | */ | |
1963 | list_for_each_entry(dev, &topology_device_list, list) | |
1964 | if (dev->node_props.cpu_cores_count && | |
1965 | dev->node_props.simd_count && | |
1966 | !dev->gpu) | |
1967 | gpu->use_iommu_v2 = true; | |
1968 | ||
1969 | up_read(&topology_lock); | |
1970 | } | |
1971 | ||
851a645e FK |
1972 | #if defined(CONFIG_DEBUG_FS) |
1973 | ||
1974 | int kfd_debugfs_hqds_by_device(struct seq_file *m, void *data) | |
1975 | { | |
1976 | struct kfd_topology_device *dev; | |
1977 | unsigned int i = 0; | |
1978 | int r = 0; | |
1979 | ||
1980 | down_read(&topology_lock); | |
1981 | ||
1982 | list_for_each_entry(dev, &topology_device_list, list) { | |
1983 | if (!dev->gpu) { | |
1984 | i++; | |
1985 | continue; | |
1986 | } | |
1987 | ||
1988 | seq_printf(m, "Node %u, gpu_id %x:\n", i++, dev->gpu->id); | |
1989 | r = dqm_debugfs_hqds(m, dev->gpu->dqm); | |
1990 | if (r) | |
1991 | break; | |
1992 | } | |
1993 | ||
1994 | up_read(&topology_lock); | |
1995 | ||
1996 | return r; | |
1997 | } | |
1998 | ||
1999 | int kfd_debugfs_rls_by_device(struct seq_file *m, void *data) | |
2000 | { | |
2001 | struct kfd_topology_device *dev; | |
2002 | unsigned int i = 0; | |
2003 | int r = 0; | |
2004 | ||
2005 | down_read(&topology_lock); | |
2006 | ||
2007 | list_for_each_entry(dev, &topology_device_list, list) { | |
2008 | if (!dev->gpu) { | |
2009 | i++; | |
2010 | continue; | |
2011 | } | |
2012 | ||
2013 | seq_printf(m, "Node %u, gpu_id %x:\n", i++, dev->gpu->id); | |
9af5379c | 2014 | r = pm_debugfs_runlist(m, &dev->gpu->dqm->packet_mgr); |
851a645e FK |
2015 | if (r) |
2016 | break; | |
2017 | } | |
2018 | ||
2019 | up_read(&topology_lock); | |
2020 | ||
2021 | return r; | |
2022 | } | |
2023 | ||
2024 | #endif |