1 /*
2 * Copyright 2014 Advanced Micro Devices, Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 */
22
23 #include "amdgpu_amdkfd.h"
24 #include "amd_pcie.h"
25 #include "amd_shared.h"
26
27 #include "amdgpu.h"
28 #include "amdgpu_gfx.h"
29 #include "amdgpu_dma_buf.h"
30 #include <linux/module.h>
31 #include <linux/dma-buf.h>
32 #include "amdgpu_xgmi.h"
33 #include <uapi/linux/kfd_ioctl.h>
34 #include "amdgpu_ras.h"
35 #include "amdgpu_umc.h"
36
37 /* Total memory size in system memory and all GPU VRAM. Used to
38 * estimate worst case amount of memory to reserve for page tables
39 */
40 uint64_t amdgpu_amdkfd_total_mem_size;
41
42 static bool kfd_initialized;
43
amdgpu_amdkfd_init(void)44 int amdgpu_amdkfd_init(void)
45 {
46 struct sysinfo si;
47 int ret;
48
49 si_meminfo(&si);
50 amdgpu_amdkfd_total_mem_size = si.freeram - si.freehigh;
51 amdgpu_amdkfd_total_mem_size *= si.mem_unit;
52
53 ret = kgd2kfd_init();
54 amdgpu_amdkfd_gpuvm_init_mem_limits();
55 kfd_initialized = !ret;
56
57 return ret;
58 }
59
amdgpu_amdkfd_fini(void)60 void amdgpu_amdkfd_fini(void)
61 {
62 if (kfd_initialized) {
63 kgd2kfd_exit();
64 kfd_initialized = false;
65 }
66 }
67
amdgpu_amdkfd_device_probe(struct amdgpu_device * adev)68 void amdgpu_amdkfd_device_probe(struct amdgpu_device *adev)
69 {
70 bool vf = amdgpu_sriov_vf(adev);
71
72 if (!kfd_initialized)
73 return;
74
75 adev->kfd.dev = kgd2kfd_probe(adev, vf);
76
77 if (adev->kfd.dev)
78 amdgpu_amdkfd_total_mem_size += adev->gmc.real_vram_size;
79 }
80
81 /**
82 * amdgpu_doorbell_get_kfd_info - Report doorbell configuration required to
83 * setup amdkfd
84 *
85 * @adev: amdgpu_device pointer
86 * @aperture_base: output returning doorbell aperture base physical address
87 * @aperture_size: output returning doorbell aperture size in bytes
88 * @start_offset: output returning # of doorbell bytes reserved for amdgpu.
89 *
90 * amdgpu and amdkfd share the doorbell aperture. amdgpu sets it up,
91 * takes doorbells required for its own rings and reports the setup to amdkfd.
92 * amdgpu reserved doorbells are at the start of the doorbell aperture.
93 */
amdgpu_doorbell_get_kfd_info(struct amdgpu_device * adev,phys_addr_t * aperture_base,size_t * aperture_size,size_t * start_offset)94 static void amdgpu_doorbell_get_kfd_info(struct amdgpu_device *adev,
95 phys_addr_t *aperture_base,
96 size_t *aperture_size,
97 size_t *start_offset)
98 {
99 /*
100 * The first num_doorbells are used by amdgpu.
101 * amdkfd takes whatever's left in the aperture.
102 */
103 if (adev->enable_mes) {
104 /*
105 * With MES enabled, we only need to initialize
106 * the base address. The size and offset are
107 * not initialized as AMDGPU manages the whole
108 * doorbell space.
109 */
110 *aperture_base = adev->doorbell.base;
111 *aperture_size = 0;
112 *start_offset = 0;
113 } else if (adev->doorbell.size > adev->doorbell.num_doorbells *
114 sizeof(u32)) {
115 *aperture_base = adev->doorbell.base;
116 *aperture_size = adev->doorbell.size;
117 *start_offset = adev->doorbell.num_doorbells * sizeof(u32);
118 } else {
119 *aperture_base = 0;
120 *aperture_size = 0;
121 *start_offset = 0;
122 }
123 }
124
amdgpu_amdkfd_device_init(struct amdgpu_device * adev)125 void amdgpu_amdkfd_device_init(struct amdgpu_device *adev)
126 {
127 int i;
128 int last_valid_bit;
129
130 if (adev->kfd.dev) {
131 struct kgd2kfd_shared_resources gpu_resources = {
132 .compute_vmid_bitmap =
133 ((1 << AMDGPU_NUM_VMID) - 1) -
134 ((1 << adev->vm_manager.first_kfd_vmid) - 1),
135 .num_pipe_per_mec = adev->gfx.mec.num_pipe_per_mec,
136 .num_queue_per_pipe = adev->gfx.mec.num_queue_per_pipe,
137 .gpuvm_size = min(adev->vm_manager.max_pfn
138 << AMDGPU_GPU_PAGE_SHIFT,
139 AMDGPU_GMC_HOLE_START),
140 .drm_render_minor = adev_to_drm(adev)->render->index,
141 .sdma_doorbell_idx = adev->doorbell_index.sdma_engine,
142 .enable_mes = adev->enable_mes,
143 };
144
145 /* this is going to have a few of the MSBs set that we need to
146 * clear
147 */
148 bitmap_complement(gpu_resources.cp_queue_bitmap,
149 adev->gfx.mec.queue_bitmap,
150 KGD_MAX_QUEUES);
151
152 /* According to linux/bitmap.h we shouldn't use bitmap_clear if
153 * nbits is not compile time constant
154 */
155 last_valid_bit = 1 /* only first MEC can have compute queues */
156 * adev->gfx.mec.num_pipe_per_mec
157 * adev->gfx.mec.num_queue_per_pipe;
158 for (i = last_valid_bit; i < KGD_MAX_QUEUES; ++i)
159 clear_bit(i, gpu_resources.cp_queue_bitmap);
160
161 amdgpu_doorbell_get_kfd_info(adev,
162 &gpu_resources.doorbell_physical_address,
163 &gpu_resources.doorbell_aperture_size,
164 &gpu_resources.doorbell_start_offset);
165
166 /* Since SOC15, BIF starts to statically use the
167 * lower 12 bits of doorbell addresses for routing
168 * based on settings in registers like
169 * SDMA0_DOORBELL_RANGE etc..
170 * In order to route a doorbell to CP engine, the lower
171 * 12 bits of its address has to be outside the range
172 * set for SDMA, VCN, and IH blocks.
173 */
174 if (adev->asic_type >= CHIP_VEGA10) {
175 gpu_resources.non_cp_doorbells_start =
176 adev->doorbell_index.first_non_cp;
177 gpu_resources.non_cp_doorbells_end =
178 adev->doorbell_index.last_non_cp;
179 }
180
181 adev->kfd.init_complete = kgd2kfd_device_init(adev->kfd.dev,
182 adev_to_drm(adev), &gpu_resources);
183 }
184 }
185
amdgpu_amdkfd_device_fini_sw(struct amdgpu_device * adev)186 void amdgpu_amdkfd_device_fini_sw(struct amdgpu_device *adev)
187 {
188 if (adev->kfd.dev) {
189 kgd2kfd_device_exit(adev->kfd.dev);
190 adev->kfd.dev = NULL;
191 }
192 }
193
amdgpu_amdkfd_interrupt(struct amdgpu_device * adev,const void * ih_ring_entry)194 void amdgpu_amdkfd_interrupt(struct amdgpu_device *adev,
195 const void *ih_ring_entry)
196 {
197 if (adev->kfd.dev)
198 kgd2kfd_interrupt(adev->kfd.dev, ih_ring_entry);
199 }
200
amdgpu_amdkfd_suspend(struct amdgpu_device * adev,bool run_pm)201 void amdgpu_amdkfd_suspend(struct amdgpu_device *adev, bool run_pm)
202 {
203 if (adev->kfd.dev)
204 kgd2kfd_suspend(adev->kfd.dev, run_pm);
205 }
206
amdgpu_amdkfd_resume_iommu(struct amdgpu_device * adev)207 int amdgpu_amdkfd_resume_iommu(struct amdgpu_device *adev)
208 {
209 int r = 0;
210
211 if (adev->kfd.dev)
212 r = kgd2kfd_resume_iommu(adev->kfd.dev);
213
214 return r;
215 }
216
amdgpu_amdkfd_resume(struct amdgpu_device * adev,bool run_pm)217 int amdgpu_amdkfd_resume(struct amdgpu_device *adev, bool run_pm)
218 {
219 int r = 0;
220
221 if (adev->kfd.dev)
222 r = kgd2kfd_resume(adev->kfd.dev, run_pm);
223
224 return r;
225 }
226
amdgpu_amdkfd_pre_reset(struct amdgpu_device * adev)227 int amdgpu_amdkfd_pre_reset(struct amdgpu_device *adev)
228 {
229 int r = 0;
230
231 if (adev->kfd.dev)
232 r = kgd2kfd_pre_reset(adev->kfd.dev);
233
234 return r;
235 }
236
amdgpu_amdkfd_post_reset(struct amdgpu_device * adev)237 int amdgpu_amdkfd_post_reset(struct amdgpu_device *adev)
238 {
239 int r = 0;
240
241 if (adev->kfd.dev)
242 r = kgd2kfd_post_reset(adev->kfd.dev);
243
244 return r;
245 }
246
amdgpu_amdkfd_gpu_reset(struct amdgpu_device * adev)247 void amdgpu_amdkfd_gpu_reset(struct amdgpu_device *adev)
248 {
249 if (amdgpu_device_should_recover_gpu(adev))
250 amdgpu_device_gpu_recover(adev, NULL);
251 }
252
amdgpu_amdkfd_alloc_gtt_mem(struct amdgpu_device * adev,size_t size,void ** mem_obj,uint64_t * gpu_addr,void ** cpu_ptr,bool cp_mqd_gfx9)253 int amdgpu_amdkfd_alloc_gtt_mem(struct amdgpu_device *adev, size_t size,
254 void **mem_obj, uint64_t *gpu_addr,
255 void **cpu_ptr, bool cp_mqd_gfx9)
256 {
257 struct amdgpu_bo *bo = NULL;
258 struct amdgpu_bo_param bp;
259 int r;
260 void *cpu_ptr_tmp = NULL;
261
262 memset(&bp, 0, sizeof(bp));
263 bp.size = size;
264 bp.byte_align = PAGE_SIZE;
265 bp.domain = AMDGPU_GEM_DOMAIN_GTT;
266 bp.flags = AMDGPU_GEM_CREATE_CPU_GTT_USWC;
267 bp.type = ttm_bo_type_kernel;
268 bp.resv = NULL;
269 bp.bo_ptr_size = sizeof(struct amdgpu_bo);
270
271 if (cp_mqd_gfx9)
272 bp.flags |= AMDGPU_GEM_CREATE_CP_MQD_GFX9;
273
274 r = amdgpu_bo_create(adev, &bp, &bo);
275 if (r) {
276 dev_err(adev->dev,
277 "failed to allocate BO for amdkfd (%d)\n", r);
278 return r;
279 }
280
281 /* map the buffer */
282 r = amdgpu_bo_reserve(bo, true);
283 if (r) {
284 dev_err(adev->dev, "(%d) failed to reserve bo for amdkfd\n", r);
285 goto allocate_mem_reserve_bo_failed;
286 }
287
288 r = amdgpu_bo_pin(bo, AMDGPU_GEM_DOMAIN_GTT);
289 if (r) {
290 dev_err(adev->dev, "(%d) failed to pin bo for amdkfd\n", r);
291 goto allocate_mem_pin_bo_failed;
292 }
293
294 r = amdgpu_ttm_alloc_gart(&bo->tbo);
295 if (r) {
296 dev_err(adev->dev, "%p bind failed\n", bo);
297 goto allocate_mem_kmap_bo_failed;
298 }
299
300 r = amdgpu_bo_kmap(bo, &cpu_ptr_tmp);
301 if (r) {
302 dev_err(adev->dev,
303 "(%d) failed to map bo to kernel for amdkfd\n", r);
304 goto allocate_mem_kmap_bo_failed;
305 }
306
307 *mem_obj = bo;
308 *gpu_addr = amdgpu_bo_gpu_offset(bo);
309 *cpu_ptr = cpu_ptr_tmp;
310
311 amdgpu_bo_unreserve(bo);
312
313 return 0;
314
315 allocate_mem_kmap_bo_failed:
316 amdgpu_bo_unpin(bo);
317 allocate_mem_pin_bo_failed:
318 amdgpu_bo_unreserve(bo);
319 allocate_mem_reserve_bo_failed:
320 amdgpu_bo_unref(&bo);
321
322 return r;
323 }
324
amdgpu_amdkfd_free_gtt_mem(struct amdgpu_device * adev,void * mem_obj)325 void amdgpu_amdkfd_free_gtt_mem(struct amdgpu_device *adev, void *mem_obj)
326 {
327 struct amdgpu_bo *bo = (struct amdgpu_bo *) mem_obj;
328
329 amdgpu_bo_reserve(bo, true);
330 amdgpu_bo_kunmap(bo);
331 amdgpu_bo_unpin(bo);
332 amdgpu_bo_unreserve(bo);
333 amdgpu_bo_unref(&(bo));
334 }
335
amdgpu_amdkfd_alloc_gws(struct amdgpu_device * adev,size_t size,void ** mem_obj)336 int amdgpu_amdkfd_alloc_gws(struct amdgpu_device *adev, size_t size,
337 void **mem_obj)
338 {
339 struct amdgpu_bo *bo = NULL;
340 struct amdgpu_bo_user *ubo;
341 struct amdgpu_bo_param bp;
342 int r;
343
344 memset(&bp, 0, sizeof(bp));
345 bp.size = size;
346 bp.byte_align = 1;
347 bp.domain = AMDGPU_GEM_DOMAIN_GWS;
348 bp.flags = AMDGPU_GEM_CREATE_NO_CPU_ACCESS;
349 bp.type = ttm_bo_type_device;
350 bp.resv = NULL;
351 bp.bo_ptr_size = sizeof(struct amdgpu_bo);
352
353 r = amdgpu_bo_create_user(adev, &bp, &ubo);
354 if (r) {
355 dev_err(adev->dev,
356 "failed to allocate gws BO for amdkfd (%d)\n", r);
357 return r;
358 }
359
360 bo = &ubo->bo;
361 *mem_obj = bo;
362 return 0;
363 }
364
amdgpu_amdkfd_free_gws(struct amdgpu_device * adev,void * mem_obj)365 void amdgpu_amdkfd_free_gws(struct amdgpu_device *adev, void *mem_obj)
366 {
367 struct amdgpu_bo *bo = (struct amdgpu_bo *)mem_obj;
368
369 amdgpu_bo_unref(&bo);
370 }
371
amdgpu_amdkfd_get_fw_version(struct amdgpu_device * adev,enum kgd_engine_type type)372 uint32_t amdgpu_amdkfd_get_fw_version(struct amdgpu_device *adev,
373 enum kgd_engine_type type)
374 {
375 switch (type) {
376 case KGD_ENGINE_PFP:
377 return adev->gfx.pfp_fw_version;
378
379 case KGD_ENGINE_ME:
380 return adev->gfx.me_fw_version;
381
382 case KGD_ENGINE_CE:
383 return adev->gfx.ce_fw_version;
384
385 case KGD_ENGINE_MEC1:
386 return adev->gfx.mec_fw_version;
387
388 case KGD_ENGINE_MEC2:
389 return adev->gfx.mec2_fw_version;
390
391 case KGD_ENGINE_RLC:
392 return adev->gfx.rlc_fw_version;
393
394 case KGD_ENGINE_SDMA1:
395 return adev->sdma.instance[0].fw_version;
396
397 case KGD_ENGINE_SDMA2:
398 return adev->sdma.instance[1].fw_version;
399
400 default:
401 return 0;
402 }
403
404 return 0;
405 }
406
amdgpu_amdkfd_get_local_mem_info(struct amdgpu_device * adev,struct kfd_local_mem_info * mem_info)407 void amdgpu_amdkfd_get_local_mem_info(struct amdgpu_device *adev,
408 struct kfd_local_mem_info *mem_info)
409 {
410 memset(mem_info, 0, sizeof(*mem_info));
411
412 mem_info->local_mem_size_public = adev->gmc.visible_vram_size;
413 mem_info->local_mem_size_private = adev->gmc.real_vram_size -
414 adev->gmc.visible_vram_size;
415
416 mem_info->vram_width = adev->gmc.vram_width;
417
418 pr_debug("Address base: %pap public 0x%llx private 0x%llx\n",
419 &adev->gmc.aper_base,
420 mem_info->local_mem_size_public,
421 mem_info->local_mem_size_private);
422
423 if (amdgpu_sriov_vf(adev))
424 mem_info->mem_clk_max = adev->clock.default_mclk / 100;
425 else if (adev->pm.dpm_enabled) {
426 if (amdgpu_emu_mode == 1)
427 mem_info->mem_clk_max = 0;
428 else
429 mem_info->mem_clk_max = amdgpu_dpm_get_mclk(adev, false) / 100;
430 } else
431 mem_info->mem_clk_max = 100;
432 }
433
amdgpu_amdkfd_get_gpu_clock_counter(struct amdgpu_device * adev)434 uint64_t amdgpu_amdkfd_get_gpu_clock_counter(struct amdgpu_device *adev)
435 {
436 if (adev->gfx.funcs->get_gpu_clock_counter)
437 return adev->gfx.funcs->get_gpu_clock_counter(adev);
438 return 0;
439 }
440
amdgpu_amdkfd_get_max_engine_clock_in_mhz(struct amdgpu_device * adev)441 uint32_t amdgpu_amdkfd_get_max_engine_clock_in_mhz(struct amdgpu_device *adev)
442 {
443 /* the sclk is in quantas of 10kHz */
444 if (amdgpu_sriov_vf(adev))
445 return adev->clock.default_sclk / 100;
446 else if (adev->pm.dpm_enabled)
447 return amdgpu_dpm_get_sclk(adev, false) / 100;
448 else
449 return 100;
450 }
451
amdgpu_amdkfd_get_cu_info(struct amdgpu_device * adev,struct kfd_cu_info * cu_info)452 void amdgpu_amdkfd_get_cu_info(struct amdgpu_device *adev, struct kfd_cu_info *cu_info)
453 {
454 struct amdgpu_cu_info acu_info = adev->gfx.cu_info;
455
456 memset(cu_info, 0, sizeof(*cu_info));
457 if (sizeof(cu_info->cu_bitmap) != sizeof(acu_info.bitmap))
458 return;
459
460 cu_info->cu_active_number = acu_info.number;
461 cu_info->cu_ao_mask = acu_info.ao_cu_mask;
462 memcpy(&cu_info->cu_bitmap[0], &acu_info.bitmap[0],
463 sizeof(acu_info.bitmap));
464 cu_info->num_shader_engines = adev->gfx.config.max_shader_engines;
465 cu_info->num_shader_arrays_per_engine = adev->gfx.config.max_sh_per_se;
466 cu_info->num_cu_per_sh = adev->gfx.config.max_cu_per_sh;
467 cu_info->simd_per_cu = acu_info.simd_per_cu;
468 cu_info->max_waves_per_simd = acu_info.max_waves_per_simd;
469 cu_info->wave_front_size = acu_info.wave_front_size;
470 cu_info->max_scratch_slots_per_cu = acu_info.max_scratch_slots_per_cu;
471 cu_info->lds_size = acu_info.lds_size;
472 }
473
amdgpu_amdkfd_get_dmabuf_info(struct amdgpu_device * adev,int dma_buf_fd,struct amdgpu_device ** dmabuf_adev,uint64_t * bo_size,void * metadata_buffer,size_t buffer_size,uint32_t * metadata_size,uint32_t * flags)474 int amdgpu_amdkfd_get_dmabuf_info(struct amdgpu_device *adev, int dma_buf_fd,
475 struct amdgpu_device **dmabuf_adev,
476 uint64_t *bo_size, void *metadata_buffer,
477 size_t buffer_size, uint32_t *metadata_size,
478 uint32_t *flags)
479 {
480 struct dma_buf *dma_buf;
481 struct drm_gem_object *obj;
482 struct amdgpu_bo *bo;
483 uint64_t metadata_flags;
484 int r = -EINVAL;
485
486 dma_buf = dma_buf_get(dma_buf_fd);
487 if (IS_ERR(dma_buf))
488 return PTR_ERR(dma_buf);
489
490 if (dma_buf->ops != &amdgpu_dmabuf_ops)
491 /* Can't handle non-graphics buffers */
492 goto out_put;
493
494 obj = dma_buf->priv;
495 if (obj->dev->driver != adev_to_drm(adev)->driver)
496 /* Can't handle buffers from different drivers */
497 goto out_put;
498
499 adev = drm_to_adev(obj->dev);
500 bo = gem_to_amdgpu_bo(obj);
501 if (!(bo->preferred_domains & (AMDGPU_GEM_DOMAIN_VRAM |
502 AMDGPU_GEM_DOMAIN_GTT)))
503 /* Only VRAM and GTT BOs are supported */
504 goto out_put;
505
506 r = 0;
507 if (dmabuf_adev)
508 *dmabuf_adev = adev;
509 if (bo_size)
510 *bo_size = amdgpu_bo_size(bo);
511 if (metadata_buffer)
512 r = amdgpu_bo_get_metadata(bo, metadata_buffer, buffer_size,
513 metadata_size, &metadata_flags);
514 if (flags) {
515 *flags = (bo->preferred_domains & AMDGPU_GEM_DOMAIN_VRAM) ?
516 KFD_IOC_ALLOC_MEM_FLAGS_VRAM
517 : KFD_IOC_ALLOC_MEM_FLAGS_GTT;
518
519 if (bo->flags & AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED)
520 *flags |= KFD_IOC_ALLOC_MEM_FLAGS_PUBLIC;
521 }
522
523 out_put:
524 dma_buf_put(dma_buf);
525 return r;
526 }
527
amdgpu_amdkfd_get_xgmi_hops_count(struct amdgpu_device * dst,struct amdgpu_device * src)528 uint8_t amdgpu_amdkfd_get_xgmi_hops_count(struct amdgpu_device *dst,
529 struct amdgpu_device *src)
530 {
531 struct amdgpu_device *peer_adev = src;
532 struct amdgpu_device *adev = dst;
533 int ret = amdgpu_xgmi_get_hops_count(adev, peer_adev);
534
535 if (ret < 0) {
536 DRM_ERROR("amdgpu: failed to get xgmi hops count between node %d and %d. ret = %d\n",
537 adev->gmc.xgmi.physical_node_id,
538 peer_adev->gmc.xgmi.physical_node_id, ret);
539 ret = 0;
540 }
541 return (uint8_t)ret;
542 }
543
amdgpu_amdkfd_get_xgmi_bandwidth_mbytes(struct amdgpu_device * dst,struct amdgpu_device * src,bool is_min)544 int amdgpu_amdkfd_get_xgmi_bandwidth_mbytes(struct amdgpu_device *dst,
545 struct amdgpu_device *src,
546 bool is_min)
547 {
548 struct amdgpu_device *adev = dst, *peer_adev;
549 int num_links;
550
551 if (adev->asic_type != CHIP_ALDEBARAN)
552 return 0;
553
554 if (src)
555 peer_adev = src;
556
557 /* num links returns 0 for indirect peers since indirect route is unknown. */
558 num_links = is_min ? 1 : amdgpu_xgmi_get_num_links(adev, peer_adev);
559 if (num_links < 0) {
560 DRM_ERROR("amdgpu: failed to get xgmi num links between node %d and %d. ret = %d\n",
561 adev->gmc.xgmi.physical_node_id,
562 peer_adev->gmc.xgmi.physical_node_id, num_links);
563 num_links = 0;
564 }
565
566 /* Aldebaran xGMI DPM is defeatured so assume x16 x 25Gbps for bandwidth. */
567 return (num_links * 16 * 25000)/BITS_PER_BYTE;
568 }
569
amdgpu_amdkfd_get_pcie_bandwidth_mbytes(struct amdgpu_device * adev,bool is_min)570 int amdgpu_amdkfd_get_pcie_bandwidth_mbytes(struct amdgpu_device *adev, bool is_min)
571 {
572 int num_lanes_shift = (is_min ? ffs(adev->pm.pcie_mlw_mask) :
573 fls(adev->pm.pcie_mlw_mask)) - 1;
574 int gen_speed_shift = (is_min ? ffs(adev->pm.pcie_gen_mask &
575 CAIL_PCIE_LINK_SPEED_SUPPORT_MASK) :
576 fls(adev->pm.pcie_gen_mask &
577 CAIL_PCIE_LINK_SPEED_SUPPORT_MASK)) - 1;
578 uint32_t num_lanes_mask = 1 << num_lanes_shift;
579 uint32_t gen_speed_mask = 1 << gen_speed_shift;
580 int num_lanes_factor = 0, gen_speed_mbits_factor = 0;
581
582 switch (num_lanes_mask) {
583 case CAIL_PCIE_LINK_WIDTH_SUPPORT_X1:
584 num_lanes_factor = 1;
585 break;
586 case CAIL_PCIE_LINK_WIDTH_SUPPORT_X2:
587 num_lanes_factor = 2;
588 break;
589 case CAIL_PCIE_LINK_WIDTH_SUPPORT_X4:
590 num_lanes_factor = 4;
591 break;
592 case CAIL_PCIE_LINK_WIDTH_SUPPORT_X8:
593 num_lanes_factor = 8;
594 break;
595 case CAIL_PCIE_LINK_WIDTH_SUPPORT_X12:
596 num_lanes_factor = 12;
597 break;
598 case CAIL_PCIE_LINK_WIDTH_SUPPORT_X16:
599 num_lanes_factor = 16;
600 break;
601 case CAIL_PCIE_LINK_WIDTH_SUPPORT_X32:
602 num_lanes_factor = 32;
603 break;
604 }
605
606 switch (gen_speed_mask) {
607 case CAIL_PCIE_LINK_SPEED_SUPPORT_GEN1:
608 gen_speed_mbits_factor = 2500;
609 break;
610 case CAIL_PCIE_LINK_SPEED_SUPPORT_GEN2:
611 gen_speed_mbits_factor = 5000;
612 break;
613 case CAIL_PCIE_LINK_SPEED_SUPPORT_GEN3:
614 gen_speed_mbits_factor = 8000;
615 break;
616 case CAIL_PCIE_LINK_SPEED_SUPPORT_GEN4:
617 gen_speed_mbits_factor = 16000;
618 break;
619 case CAIL_PCIE_LINK_SPEED_SUPPORT_GEN5:
620 gen_speed_mbits_factor = 32000;
621 break;
622 }
623
624 return (num_lanes_factor * gen_speed_mbits_factor)/BITS_PER_BYTE;
625 }
626
amdgpu_amdkfd_submit_ib(struct amdgpu_device * adev,enum kgd_engine_type engine,uint32_t vmid,uint64_t gpu_addr,uint32_t * ib_cmd,uint32_t ib_len)627 int amdgpu_amdkfd_submit_ib(struct amdgpu_device *adev,
628 enum kgd_engine_type engine,
629 uint32_t vmid, uint64_t gpu_addr,
630 uint32_t *ib_cmd, uint32_t ib_len)
631 {
632 struct amdgpu_job *job;
633 struct amdgpu_ib *ib;
634 struct amdgpu_ring *ring;
635 struct dma_fence *f = NULL;
636 int ret;
637
638 switch (engine) {
639 case KGD_ENGINE_MEC1:
640 ring = &adev->gfx.compute_ring[0];
641 break;
642 case KGD_ENGINE_SDMA1:
643 ring = &adev->sdma.instance[0].ring;
644 break;
645 case KGD_ENGINE_SDMA2:
646 ring = &adev->sdma.instance[1].ring;
647 break;
648 default:
649 pr_err("Invalid engine in IB submission: %d\n", engine);
650 ret = -EINVAL;
651 goto err;
652 }
653
654 ret = amdgpu_job_alloc(adev, 1, &job, NULL);
655 if (ret)
656 goto err;
657
658 ib = &job->ibs[0];
659 memset(ib, 0, sizeof(struct amdgpu_ib));
660
661 ib->gpu_addr = gpu_addr;
662 ib->ptr = ib_cmd;
663 ib->length_dw = ib_len;
664 /* This works for NO_HWS. TODO: need to handle without knowing VMID */
665 job->vmid = vmid;
666
667 ret = amdgpu_ib_schedule(ring, 1, ib, job, &f);
668
669 if (ret) {
670 DRM_ERROR("amdgpu: failed to schedule IB.\n");
671 goto err_ib_sched;
672 }
673
674 ret = dma_fence_wait(f, false);
675
676 err_ib_sched:
677 amdgpu_job_free(job);
678 err:
679 return ret;
680 }
681
amdgpu_amdkfd_set_compute_idle(struct amdgpu_device * adev,bool idle)682 void amdgpu_amdkfd_set_compute_idle(struct amdgpu_device *adev, bool idle)
683 {
684 amdgpu_dpm_switch_power_profile(adev,
685 PP_SMC_POWER_PROFILE_COMPUTE,
686 !idle);
687 }
688
amdgpu_amdkfd_is_kfd_vmid(struct amdgpu_device * adev,u32 vmid)689 bool amdgpu_amdkfd_is_kfd_vmid(struct amdgpu_device *adev, u32 vmid)
690 {
691 if (adev->kfd.dev)
692 return vmid >= adev->vm_manager.first_kfd_vmid;
693
694 return false;
695 }
696
amdgpu_amdkfd_flush_gpu_tlb_vmid(struct amdgpu_device * adev,uint16_t vmid)697 int amdgpu_amdkfd_flush_gpu_tlb_vmid(struct amdgpu_device *adev,
698 uint16_t vmid)
699 {
700 if (adev->family == AMDGPU_FAMILY_AI) {
701 int i;
702
703 for (i = 0; i < adev->num_vmhubs; i++)
704 amdgpu_gmc_flush_gpu_tlb(adev, vmid, i, 0);
705 } else {
706 amdgpu_gmc_flush_gpu_tlb(adev, vmid, AMDGPU_GFXHUB_0, 0);
707 }
708
709 return 0;
710 }
711
amdgpu_amdkfd_flush_gpu_tlb_pasid(struct amdgpu_device * adev,uint16_t pasid,enum TLB_FLUSH_TYPE flush_type)712 int amdgpu_amdkfd_flush_gpu_tlb_pasid(struct amdgpu_device *adev,
713 uint16_t pasid, enum TLB_FLUSH_TYPE flush_type)
714 {
715 bool all_hub = false;
716
717 if (adev->family == AMDGPU_FAMILY_AI ||
718 adev->family == AMDGPU_FAMILY_RV)
719 all_hub = true;
720
721 return amdgpu_gmc_flush_gpu_tlb_pasid(adev, pasid, flush_type, all_hub);
722 }
723
amdgpu_amdkfd_have_atomics_support(struct amdgpu_device * adev)724 bool amdgpu_amdkfd_have_atomics_support(struct amdgpu_device *adev)
725 {
726 return adev->have_atomics_support;
727 }
728
amdgpu_amdkfd_ras_poison_consumption_handler(struct amdgpu_device * adev,bool reset)729 void amdgpu_amdkfd_ras_poison_consumption_handler(struct amdgpu_device *adev, bool reset)
730 {
731 struct ras_err_data err_data = {0, 0, 0, NULL};
732
733 /* CPU MCA will handle page retirement if connected_to_cpu is 1 */
734 if (!adev->gmc.xgmi.connected_to_cpu)
735 amdgpu_umc_poison_handler(adev, &err_data, reset);
736 else if (reset)
737 amdgpu_amdkfd_gpu_reset(adev);
738 }
739
amdgpu_amdkfd_ras_query_utcl2_poison_status(struct amdgpu_device * adev)740 bool amdgpu_amdkfd_ras_query_utcl2_poison_status(struct amdgpu_device *adev)
741 {
742 if (adev->gfx.ras && adev->gfx.ras->query_utcl2_poison_status)
743 return adev->gfx.ras->query_utcl2_poison_status(adev);
744 else
745 return false;
746 }
747