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1// SPDX-License-Identifier: MIT
2/*
3 * Copyright 2014 Advanced Micro Devices, Inc.
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 "amdgpu_amdkfd.h"
25#include "amd_pcie.h"
26#include "amd_shared.h"
27
28#include "amdgpu.h"
29#include "amdgpu_gfx.h"
30#include "amdgpu_dma_buf.h"
31#include <drm/ttm/ttm_tt.h>
32#include <linux/module.h>
33#include <linux/dma-buf.h>
34#include "amdgpu_xgmi.h"
35#include <uapi/linux/kfd_ioctl.h>
36#include "amdgpu_ras.h"
37#include "amdgpu_umc.h"
38#include "amdgpu_reset.h"
39
40/* Total memory size in system memory and all GPU VRAM. Used to
41 * estimate worst case amount of memory to reserve for page tables
42 */
43uint64_t amdgpu_amdkfd_total_mem_size;
44
45static bool kfd_initialized;
46
47int amdgpu_amdkfd_init(void)
48{
49 struct sysinfo si;
50 int ret;
51
52 si_meminfo(&si);
53 amdgpu_amdkfd_total_mem_size = si.freeram - si.freehigh;
54 amdgpu_amdkfd_total_mem_size *= si.mem_unit;
55
56 ret = kgd2kfd_init();
57 kfd_initialized = !ret;
58
59 return ret;
60}
61
62void amdgpu_amdkfd_fini(void)
63{
64 if (kfd_initialized) {
65 kgd2kfd_exit();
66 kfd_initialized = false;
67 }
68}
69
70void amdgpu_amdkfd_device_probe(struct amdgpu_device *adev)
71{
72 bool vf = amdgpu_sriov_vf(adev);
73
74 if (!kfd_initialized)
75 return;
76
77 adev->kfd.dev = kgd2kfd_probe(adev, vf);
78}
79
80/**
81 * amdgpu_doorbell_get_kfd_info - Report doorbell configuration required to
82 * setup amdkfd
83 *
84 * @adev: amdgpu_device pointer
85 * @aperture_base: output returning doorbell aperture base physical address
86 * @aperture_size: output returning doorbell aperture size in bytes
87 * @start_offset: output returning # of doorbell bytes reserved for amdgpu.
88 *
89 * amdgpu and amdkfd share the doorbell aperture. amdgpu sets it up,
90 * takes doorbells required for its own rings and reports the setup to amdkfd.
91 * amdgpu reserved doorbells are at the start of the doorbell aperture.
92 */
93static void amdgpu_doorbell_get_kfd_info(struct amdgpu_device *adev,
94 phys_addr_t *aperture_base,
95 size_t *aperture_size,
96 size_t *start_offset)
97{
98 /*
99 * The first num_kernel_doorbells are used by amdgpu.
100 * amdkfd takes whatever's left in the aperture.
101 */
102 if (adev->enable_mes) {
103 /*
104 * With MES enabled, we only need to initialize
105 * the base address. The size and offset are
106 * not initialized as AMDGPU manages the whole
107 * doorbell space.
108 */
109 *aperture_base = adev->doorbell.base;
110 *aperture_size = 0;
111 *start_offset = 0;
112 } else if (adev->doorbell.size > adev->doorbell.num_kernel_doorbells *
113 sizeof(u32)) {
114 *aperture_base = adev->doorbell.base;
115 *aperture_size = adev->doorbell.size;
116 *start_offset = adev->doorbell.num_kernel_doorbells * sizeof(u32);
117 } else {
118 *aperture_base = 0;
119 *aperture_size = 0;
120 *start_offset = 0;
121 }
122}
123
124
125static void amdgpu_amdkfd_reset_work(struct work_struct *work)
126{
127 struct amdgpu_device *adev = container_of(work, struct amdgpu_device,
128 kfd.reset_work);
129
130 struct amdgpu_reset_context reset_context;
131
132 memset(&reset_context, 0, sizeof(reset_context));
133
134 reset_context.method = AMD_RESET_METHOD_NONE;
135 reset_context.reset_req_dev = adev;
136 clear_bit(AMDGPU_NEED_FULL_RESET, &reset_context.flags);
137
138 amdgpu_device_gpu_recover(adev, NULL, &reset_context);
139}
140
141static const struct drm_client_funcs kfd_client_funcs = {
142 .unregister = drm_client_release,
143};
144
145int amdgpu_amdkfd_drm_client_create(struct amdgpu_device *adev)
146{
147 int ret;
148
149 if (!adev->kfd.init_complete || adev->kfd.client.dev)
150 return 0;
151
152 ret = drm_client_init(&adev->ddev, &adev->kfd.client, "kfd",
153 &kfd_client_funcs);
154 if (ret) {
155 dev_err(adev->dev, "Failed to init DRM client: %d\n",
156 ret);
157 return ret;
158 }
159
160 drm_client_register(&adev->kfd.client);
161
162 return 0;
163}
164
165void amdgpu_amdkfd_device_init(struct amdgpu_device *adev)
166{
167 int i;
168 int last_valid_bit;
169
170 amdgpu_amdkfd_gpuvm_init_mem_limits();
171
172 if (adev->kfd.dev) {
173 struct kgd2kfd_shared_resources gpu_resources = {
174 .compute_vmid_bitmap =
175 ((1 << AMDGPU_NUM_VMID) - 1) -
176 ((1 << adev->vm_manager.first_kfd_vmid) - 1),
177 .num_pipe_per_mec = adev->gfx.mec.num_pipe_per_mec,
178 .num_queue_per_pipe = adev->gfx.mec.num_queue_per_pipe,
179 .gpuvm_size = min(adev->vm_manager.max_pfn
180 << AMDGPU_GPU_PAGE_SHIFT,
181 AMDGPU_GMC_HOLE_START),
182 .drm_render_minor = adev_to_drm(adev)->render->index,
183 .sdma_doorbell_idx = adev->doorbell_index.sdma_engine,
184 .enable_mes = adev->enable_mes,
185 };
186
187 /* this is going to have a few of the MSBs set that we need to
188 * clear
189 */
190 bitmap_complement(gpu_resources.cp_queue_bitmap,
191 adev->gfx.mec_bitmap[0].queue_bitmap,
192 AMDGPU_MAX_QUEUES);
193
194 /* According to linux/bitmap.h we shouldn't use bitmap_clear if
195 * nbits is not compile time constant
196 */
197 last_valid_bit = 1 /* only first MEC can have compute queues */
198 * adev->gfx.mec.num_pipe_per_mec
199 * adev->gfx.mec.num_queue_per_pipe;
200 for (i = last_valid_bit; i < AMDGPU_MAX_QUEUES; ++i)
201 clear_bit(i, gpu_resources.cp_queue_bitmap);
202
203 amdgpu_doorbell_get_kfd_info(adev,
204 &gpu_resources.doorbell_physical_address,
205 &gpu_resources.doorbell_aperture_size,
206 &gpu_resources.doorbell_start_offset);
207
208 /* Since SOC15, BIF starts to statically use the
209 * lower 12 bits of doorbell addresses for routing
210 * based on settings in registers like
211 * SDMA0_DOORBELL_RANGE etc..
212 * In order to route a doorbell to CP engine, the lower
213 * 12 bits of its address has to be outside the range
214 * set for SDMA, VCN, and IH blocks.
215 */
216 if (adev->asic_type >= CHIP_VEGA10) {
217 gpu_resources.non_cp_doorbells_start =
218 adev->doorbell_index.first_non_cp;
219 gpu_resources.non_cp_doorbells_end =
220 adev->doorbell_index.last_non_cp;
221 }
222
223 adev->kfd.init_complete = kgd2kfd_device_init(adev->kfd.dev,
224 &gpu_resources);
225
226 amdgpu_amdkfd_total_mem_size += adev->gmc.real_vram_size;
227
228 INIT_WORK(&adev->kfd.reset_work, amdgpu_amdkfd_reset_work);
229 }
230}
231
232void amdgpu_amdkfd_device_fini_sw(struct amdgpu_device *adev)
233{
234 if (adev->kfd.dev) {
235 kgd2kfd_device_exit(adev->kfd.dev);
236 adev->kfd.dev = NULL;
237 amdgpu_amdkfd_total_mem_size -= adev->gmc.real_vram_size;
238 }
239}
240
241void amdgpu_amdkfd_interrupt(struct amdgpu_device *adev,
242 const void *ih_ring_entry)
243{
244 if (adev->kfd.dev)
245 kgd2kfd_interrupt(adev->kfd.dev, ih_ring_entry);
246}
247
248void amdgpu_amdkfd_suspend(struct amdgpu_device *adev, bool run_pm)
249{
250 if (adev->kfd.dev)
251 kgd2kfd_suspend(adev->kfd.dev, run_pm);
252}
253
254int amdgpu_amdkfd_resume(struct amdgpu_device *adev, bool run_pm)
255{
256 int r = 0;
257
258 if (adev->kfd.dev)
259 r = kgd2kfd_resume(adev->kfd.dev, run_pm);
260
261 return r;
262}
263
264int amdgpu_amdkfd_pre_reset(struct amdgpu_device *adev)
265{
266 int r = 0;
267
268 if (adev->kfd.dev)
269 r = kgd2kfd_pre_reset(adev->kfd.dev);
270
271 return r;
272}
273
274int amdgpu_amdkfd_post_reset(struct amdgpu_device *adev)
275{
276 int r = 0;
277
278 if (adev->kfd.dev)
279 r = kgd2kfd_post_reset(adev->kfd.dev);
280
281 return r;
282}
283
284void amdgpu_amdkfd_gpu_reset(struct amdgpu_device *adev)
285{
286 if (amdgpu_device_should_recover_gpu(adev))
287 amdgpu_reset_domain_schedule(adev->reset_domain,
288 &adev->kfd.reset_work);
289}
290
291int amdgpu_amdkfd_alloc_gtt_mem(struct amdgpu_device *adev, size_t size,
292 void **mem_obj, uint64_t *gpu_addr,
293 void **cpu_ptr, bool cp_mqd_gfx9)
294{
295 struct amdgpu_bo *bo = NULL;
296 struct amdgpu_bo_param bp;
297 int r;
298 void *cpu_ptr_tmp = NULL;
299
300 memset(&bp, 0, sizeof(bp));
301 bp.size = size;
302 bp.byte_align = PAGE_SIZE;
303 bp.domain = AMDGPU_GEM_DOMAIN_GTT;
304 bp.flags = AMDGPU_GEM_CREATE_CPU_GTT_USWC;
305 bp.type = ttm_bo_type_kernel;
306 bp.resv = NULL;
307 bp.bo_ptr_size = sizeof(struct amdgpu_bo);
308
309 if (cp_mqd_gfx9)
310 bp.flags |= AMDGPU_GEM_CREATE_CP_MQD_GFX9;
311
312 r = amdgpu_bo_create(adev, &bp, &bo);
313 if (r) {
314 dev_err(adev->dev,
315 "failed to allocate BO for amdkfd (%d)\n", r);
316 return r;
317 }
318
319 /* map the buffer */
320 r = amdgpu_bo_reserve(bo, true);
321 if (r) {
322 dev_err(adev->dev, "(%d) failed to reserve bo for amdkfd\n", r);
323 goto allocate_mem_reserve_bo_failed;
324 }
325
326 r = amdgpu_bo_pin(bo, AMDGPU_GEM_DOMAIN_GTT);
327 if (r) {
328 dev_err(adev->dev, "(%d) failed to pin bo for amdkfd\n", r);
329 goto allocate_mem_pin_bo_failed;
330 }
331
332 r = amdgpu_ttm_alloc_gart(&bo->tbo);
333 if (r) {
334 dev_err(adev->dev, "%p bind failed\n", bo);
335 goto allocate_mem_kmap_bo_failed;
336 }
337
338 r = amdgpu_bo_kmap(bo, &cpu_ptr_tmp);
339 if (r) {
340 dev_err(adev->dev,
341 "(%d) failed to map bo to kernel for amdkfd\n", r);
342 goto allocate_mem_kmap_bo_failed;
343 }
344
345 *mem_obj = bo;
346 *gpu_addr = amdgpu_bo_gpu_offset(bo);
347 *cpu_ptr = cpu_ptr_tmp;
348
349 amdgpu_bo_unreserve(bo);
350
351 return 0;
352
353allocate_mem_kmap_bo_failed:
354 amdgpu_bo_unpin(bo);
355allocate_mem_pin_bo_failed:
356 amdgpu_bo_unreserve(bo);
357allocate_mem_reserve_bo_failed:
358 amdgpu_bo_unref(&bo);
359
360 return r;
361}
362
363void amdgpu_amdkfd_free_gtt_mem(struct amdgpu_device *adev, void *mem_obj)
364{
365 struct amdgpu_bo *bo = (struct amdgpu_bo *) mem_obj;
366
367 amdgpu_bo_reserve(bo, true);
368 amdgpu_bo_kunmap(bo);
369 amdgpu_bo_unpin(bo);
370 amdgpu_bo_unreserve(bo);
371 amdgpu_bo_unref(&(bo));
372}
373
374int amdgpu_amdkfd_alloc_gws(struct amdgpu_device *adev, size_t size,
375 void **mem_obj)
376{
377 struct amdgpu_bo *bo = NULL;
378 struct amdgpu_bo_user *ubo;
379 struct amdgpu_bo_param bp;
380 int r;
381
382 memset(&bp, 0, sizeof(bp));
383 bp.size = size;
384 bp.byte_align = 1;
385 bp.domain = AMDGPU_GEM_DOMAIN_GWS;
386 bp.flags = AMDGPU_GEM_CREATE_NO_CPU_ACCESS;
387 bp.type = ttm_bo_type_device;
388 bp.resv = NULL;
389 bp.bo_ptr_size = sizeof(struct amdgpu_bo);
390
391 r = amdgpu_bo_create_user(adev, &bp, &ubo);
392 if (r) {
393 dev_err(adev->dev,
394 "failed to allocate gws BO for amdkfd (%d)\n", r);
395 return r;
396 }
397
398 bo = &ubo->bo;
399 *mem_obj = bo;
400 return 0;
401}
402
403void amdgpu_amdkfd_free_gws(struct amdgpu_device *adev, void *mem_obj)
404{
405 struct amdgpu_bo *bo = (struct amdgpu_bo *)mem_obj;
406
407 amdgpu_bo_unref(&bo);
408}
409
410uint32_t amdgpu_amdkfd_get_fw_version(struct amdgpu_device *adev,
411 enum kgd_engine_type type)
412{
413 switch (type) {
414 case KGD_ENGINE_PFP:
415 return adev->gfx.pfp_fw_version;
416
417 case KGD_ENGINE_ME:
418 return adev->gfx.me_fw_version;
419
420 case KGD_ENGINE_CE:
421 return adev->gfx.ce_fw_version;
422
423 case KGD_ENGINE_MEC1:
424 return adev->gfx.mec_fw_version;
425
426 case KGD_ENGINE_MEC2:
427 return adev->gfx.mec2_fw_version;
428
429 case KGD_ENGINE_RLC:
430 return adev->gfx.rlc_fw_version;
431
432 case KGD_ENGINE_SDMA1:
433 return adev->sdma.instance[0].fw_version;
434
435 case KGD_ENGINE_SDMA2:
436 return adev->sdma.instance[1].fw_version;
437
438 default:
439 return 0;
440 }
441
442 return 0;
443}
444
445void amdgpu_amdkfd_get_local_mem_info(struct amdgpu_device *adev,
446 struct kfd_local_mem_info *mem_info,
447 struct amdgpu_xcp *xcp)
448{
449 memset(mem_info, 0, sizeof(*mem_info));
450
451 if (xcp) {
452 if (adev->gmc.real_vram_size == adev->gmc.visible_vram_size)
453 mem_info->local_mem_size_public =
454 KFD_XCP_MEMORY_SIZE(adev, xcp->id);
455 else
456 mem_info->local_mem_size_private =
457 KFD_XCP_MEMORY_SIZE(adev, xcp->id);
458 } else {
459 mem_info->local_mem_size_public = adev->gmc.visible_vram_size;
460 mem_info->local_mem_size_private = adev->gmc.real_vram_size -
461 adev->gmc.visible_vram_size;
462 }
463 mem_info->vram_width = adev->gmc.vram_width;
464
465 pr_debug("Address base: %pap public 0x%llx private 0x%llx\n",
466 &adev->gmc.aper_base,
467 mem_info->local_mem_size_public,
468 mem_info->local_mem_size_private);
469
470 if (adev->pm.dpm_enabled) {
471 if (amdgpu_emu_mode == 1)
472 mem_info->mem_clk_max = 0;
473 else
474 mem_info->mem_clk_max = amdgpu_dpm_get_mclk(adev, false) / 100;
475 } else
476 mem_info->mem_clk_max = 100;
477}
478
479uint64_t amdgpu_amdkfd_get_gpu_clock_counter(struct amdgpu_device *adev)
480{
481 if (adev->gfx.funcs->get_gpu_clock_counter)
482 return adev->gfx.funcs->get_gpu_clock_counter(adev);
483 return 0;
484}
485
486uint32_t amdgpu_amdkfd_get_max_engine_clock_in_mhz(struct amdgpu_device *adev)
487{
488 /* the sclk is in quantas of 10kHz */
489 if (adev->pm.dpm_enabled)
490 return amdgpu_dpm_get_sclk(adev, false) / 100;
491 else
492 return 100;
493}
494
495int amdgpu_amdkfd_get_dmabuf_info(struct amdgpu_device *adev, int dma_buf_fd,
496 struct amdgpu_device **dmabuf_adev,
497 uint64_t *bo_size, void *metadata_buffer,
498 size_t buffer_size, uint32_t *metadata_size,
499 uint32_t *flags, int8_t *xcp_id)
500{
501 struct dma_buf *dma_buf;
502 struct drm_gem_object *obj;
503 struct amdgpu_bo *bo;
504 uint64_t metadata_flags;
505 int r = -EINVAL;
506
507 dma_buf = dma_buf_get(dma_buf_fd);
508 if (IS_ERR(dma_buf))
509 return PTR_ERR(dma_buf);
510
511 if (dma_buf->ops != &amdgpu_dmabuf_ops)
512 /* Can't handle non-graphics buffers */
513 goto out_put;
514
515 obj = dma_buf->priv;
516 if (obj->dev->driver != adev_to_drm(adev)->driver)
517 /* Can't handle buffers from different drivers */
518 goto out_put;
519
520 adev = drm_to_adev(obj->dev);
521 bo = gem_to_amdgpu_bo(obj);
522 if (!(bo->preferred_domains & (AMDGPU_GEM_DOMAIN_VRAM |
523 AMDGPU_GEM_DOMAIN_GTT)))
524 /* Only VRAM and GTT BOs are supported */
525 goto out_put;
526
527 r = 0;
528 if (dmabuf_adev)
529 *dmabuf_adev = adev;
530 if (bo_size)
531 *bo_size = amdgpu_bo_size(bo);
532 if (metadata_buffer)
533 r = amdgpu_bo_get_metadata(bo, metadata_buffer, buffer_size,
534 metadata_size, &metadata_flags);
535 if (flags) {
536 *flags = (bo->preferred_domains & AMDGPU_GEM_DOMAIN_VRAM) ?
537 KFD_IOC_ALLOC_MEM_FLAGS_VRAM
538 : KFD_IOC_ALLOC_MEM_FLAGS_GTT;
539
540 if (bo->flags & AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED)
541 *flags |= KFD_IOC_ALLOC_MEM_FLAGS_PUBLIC;
542 }
543 if (xcp_id)
544 *xcp_id = bo->xcp_id;
545
546out_put:
547 dma_buf_put(dma_buf);
548 return r;
549}
550
551uint8_t amdgpu_amdkfd_get_xgmi_hops_count(struct amdgpu_device *dst,
552 struct amdgpu_device *src)
553{
554 struct amdgpu_device *peer_adev = src;
555 struct amdgpu_device *adev = dst;
556 int ret = amdgpu_xgmi_get_hops_count(adev, peer_adev);
557
558 if (ret < 0) {
559 DRM_ERROR("amdgpu: failed to get xgmi hops count between node %d and %d. ret = %d\n",
560 adev->gmc.xgmi.physical_node_id,
561 peer_adev->gmc.xgmi.physical_node_id, ret);
562 ret = 0;
563 }
564 return (uint8_t)ret;
565}
566
567int amdgpu_amdkfd_get_xgmi_bandwidth_mbytes(struct amdgpu_device *dst,
568 struct amdgpu_device *src,
569 bool is_min)
570{
571 struct amdgpu_device *adev = dst, *peer_adev;
572 int num_links;
573
574 if (amdgpu_ip_version(adev, GC_HWIP, 0) < IP_VERSION(9, 4, 2))
575 return 0;
576
577 if (src)
578 peer_adev = src;
579
580 /* num links returns 0 for indirect peers since indirect route is unknown. */
581 num_links = is_min ? 1 : amdgpu_xgmi_get_num_links(adev, peer_adev);
582 if (num_links < 0) {
583 DRM_ERROR("amdgpu: failed to get xgmi num links between node %d and %d. ret = %d\n",
584 adev->gmc.xgmi.physical_node_id,
585 peer_adev->gmc.xgmi.physical_node_id, num_links);
586 num_links = 0;
587 }
588
589 /* Aldebaran xGMI DPM is defeatured so assume x16 x 25Gbps for bandwidth. */
590 return (num_links * 16 * 25000)/BITS_PER_BYTE;
591}
592
593int amdgpu_amdkfd_get_pcie_bandwidth_mbytes(struct amdgpu_device *adev, bool is_min)
594{
595 int num_lanes_shift = (is_min ? ffs(adev->pm.pcie_mlw_mask) :
596 fls(adev->pm.pcie_mlw_mask)) - 1;
597 int gen_speed_shift = (is_min ? ffs(adev->pm.pcie_gen_mask &
598 CAIL_PCIE_LINK_SPEED_SUPPORT_MASK) :
599 fls(adev->pm.pcie_gen_mask &
600 CAIL_PCIE_LINK_SPEED_SUPPORT_MASK)) - 1;
601 uint32_t num_lanes_mask = 1 << num_lanes_shift;
602 uint32_t gen_speed_mask = 1 << gen_speed_shift;
603 int num_lanes_factor = 0, gen_speed_mbits_factor = 0;
604
605 switch (num_lanes_mask) {
606 case CAIL_PCIE_LINK_WIDTH_SUPPORT_X1:
607 num_lanes_factor = 1;
608 break;
609 case CAIL_PCIE_LINK_WIDTH_SUPPORT_X2:
610 num_lanes_factor = 2;
611 break;
612 case CAIL_PCIE_LINK_WIDTH_SUPPORT_X4:
613 num_lanes_factor = 4;
614 break;
615 case CAIL_PCIE_LINK_WIDTH_SUPPORT_X8:
616 num_lanes_factor = 8;
617 break;
618 case CAIL_PCIE_LINK_WIDTH_SUPPORT_X12:
619 num_lanes_factor = 12;
620 break;
621 case CAIL_PCIE_LINK_WIDTH_SUPPORT_X16:
622 num_lanes_factor = 16;
623 break;
624 case CAIL_PCIE_LINK_WIDTH_SUPPORT_X32:
625 num_lanes_factor = 32;
626 break;
627 }
628
629 switch (gen_speed_mask) {
630 case CAIL_PCIE_LINK_SPEED_SUPPORT_GEN1:
631 gen_speed_mbits_factor = 2500;
632 break;
633 case CAIL_PCIE_LINK_SPEED_SUPPORT_GEN2:
634 gen_speed_mbits_factor = 5000;
635 break;
636 case CAIL_PCIE_LINK_SPEED_SUPPORT_GEN3:
637 gen_speed_mbits_factor = 8000;
638 break;
639 case CAIL_PCIE_LINK_SPEED_SUPPORT_GEN4:
640 gen_speed_mbits_factor = 16000;
641 break;
642 case CAIL_PCIE_LINK_SPEED_SUPPORT_GEN5:
643 gen_speed_mbits_factor = 32000;
644 break;
645 }
646
647 return (num_lanes_factor * gen_speed_mbits_factor)/BITS_PER_BYTE;
648}
649
650int amdgpu_amdkfd_submit_ib(struct amdgpu_device *adev,
651 enum kgd_engine_type engine,
652 uint32_t vmid, uint64_t gpu_addr,
653 uint32_t *ib_cmd, uint32_t ib_len)
654{
655 struct amdgpu_job *job;
656 struct amdgpu_ib *ib;
657 struct amdgpu_ring *ring;
658 struct dma_fence *f = NULL;
659 int ret;
660
661 switch (engine) {
662 case KGD_ENGINE_MEC1:
663 ring = &adev->gfx.compute_ring[0];
664 break;
665 case KGD_ENGINE_SDMA1:
666 ring = &adev->sdma.instance[0].ring;
667 break;
668 case KGD_ENGINE_SDMA2:
669 ring = &adev->sdma.instance[1].ring;
670 break;
671 default:
672 pr_err("Invalid engine in IB submission: %d\n", engine);
673 ret = -EINVAL;
674 goto err;
675 }
676
677 ret = amdgpu_job_alloc(adev, NULL, NULL, NULL, 1, &job);
678 if (ret)
679 goto err;
680
681 ib = &job->ibs[0];
682 memset(ib, 0, sizeof(struct amdgpu_ib));
683
684 ib->gpu_addr = gpu_addr;
685 ib->ptr = ib_cmd;
686 ib->length_dw = ib_len;
687 /* This works for NO_HWS. TODO: need to handle without knowing VMID */
688 job->vmid = vmid;
689 job->num_ibs = 1;
690
691 ret = amdgpu_ib_schedule(ring, 1, ib, job, &f);
692
693 if (ret) {
694 DRM_ERROR("amdgpu: failed to schedule IB.\n");
695 goto err_ib_sched;
696 }
697
698 /* Drop the initial kref_init count (see drm_sched_main as example) */
699 dma_fence_put(f);
700 ret = dma_fence_wait(f, false);
701
702err_ib_sched:
703 amdgpu_job_free(job);
704err:
705 return ret;
706}
707
708void amdgpu_amdkfd_set_compute_idle(struct amdgpu_device *adev, bool idle)
709{
710 enum amd_powergating_state state = idle ? AMD_PG_STATE_GATE : AMD_PG_STATE_UNGATE;
711 if (IP_VERSION_MAJ(amdgpu_ip_version(adev, GC_HWIP, 0)) == 11 &&
712 ((adev->mes.kiq_version & AMDGPU_MES_VERSION_MASK) <= 64)) {
713 pr_debug("GFXOFF is %s\n", idle ? "enabled" : "disabled");
714 amdgpu_gfx_off_ctrl(adev, idle);
715 } else if ((IP_VERSION_MAJ(amdgpu_ip_version(adev, GC_HWIP, 0)) == 9) &&
716 (adev->flags & AMD_IS_APU)) {
717 /* Disable GFXOFF and PG. Temporary workaround
718 * to fix some compute applications issue on GFX9.
719 */
720 adev->ip_blocks[AMD_IP_BLOCK_TYPE_GFX].version->funcs->set_powergating_state((void *)adev, state);
721 }
722 amdgpu_dpm_switch_power_profile(adev,
723 PP_SMC_POWER_PROFILE_COMPUTE,
724 !idle);
725}
726
727bool amdgpu_amdkfd_is_kfd_vmid(struct amdgpu_device *adev, u32 vmid)
728{
729 if (adev->kfd.dev)
730 return vmid >= adev->vm_manager.first_kfd_vmid;
731
732 return false;
733}
734
735bool amdgpu_amdkfd_have_atomics_support(struct amdgpu_device *adev)
736{
737 return adev->have_atomics_support;
738}
739
740void amdgpu_amdkfd_debug_mem_fence(struct amdgpu_device *adev)
741{
742 amdgpu_device_flush_hdp(adev, NULL);
743}
744
745bool amdgpu_amdkfd_is_fed(struct amdgpu_device *adev)
746{
747 return amdgpu_ras_get_fed_status(adev);
748}
749
750void amdgpu_amdkfd_ras_poison_consumption_handler(struct amdgpu_device *adev,
751 enum amdgpu_ras_block block, bool reset)
752{
753 amdgpu_umc_poison_handler(adev, block, reset);
754}
755
756int amdgpu_amdkfd_send_close_event_drain_irq(struct amdgpu_device *adev,
757 uint32_t *payload)
758{
759 int ret;
760
761 /* Device or IH ring is not ready so bail. */
762 ret = amdgpu_ih_wait_on_checkpoint_process_ts(adev, &adev->irq.ih);
763 if (ret)
764 return ret;
765
766 /* Send payload to fence KFD interrupts */
767 amdgpu_amdkfd_interrupt(adev, payload);
768
769 return 0;
770}
771
772bool amdgpu_amdkfd_ras_query_utcl2_poison_status(struct amdgpu_device *adev)
773{
774 if (adev->gfx.ras && adev->gfx.ras->query_utcl2_poison_status)
775 return adev->gfx.ras->query_utcl2_poison_status(adev);
776 else
777 return false;
778}
779
780int amdgpu_amdkfd_check_and_lock_kfd(struct amdgpu_device *adev)
781{
782 return kgd2kfd_check_and_lock_kfd();
783}
784
785void amdgpu_amdkfd_unlock_kfd(struct amdgpu_device *adev)
786{
787 kgd2kfd_unlock_kfd();
788}
789
790
791u64 amdgpu_amdkfd_xcp_memory_size(struct amdgpu_device *adev, int xcp_id)
792{
793 s8 mem_id = KFD_XCP_MEM_ID(adev, xcp_id);
794 u64 tmp;
795
796 if (adev->gmc.num_mem_partitions && xcp_id >= 0 && mem_id >= 0) {
797 if (adev->gmc.is_app_apu && adev->gmc.num_mem_partitions == 1) {
798 /* In NPS1 mode, we should restrict the vram reporting
799 * tied to the ttm_pages_limit which is 1/2 of the system
800 * memory. For other partition modes, the HBM is uniformly
801 * divided already per numa node reported. If user wants to
802 * go beyond the default ttm limit and maximize the ROCm
803 * allocations, they can go up to max ttm and sysmem limits.
804 */
805
806 tmp = (ttm_tt_pages_limit() << PAGE_SHIFT) / num_online_nodes();
807 } else {
808 tmp = adev->gmc.mem_partitions[mem_id].size;
809 }
810 do_div(tmp, adev->xcp_mgr->num_xcp_per_mem_partition);
811 return ALIGN_DOWN(tmp, PAGE_SIZE);
812 } else {
813 return adev->gmc.real_vram_size;
814 }
815}
816
817int amdgpu_amdkfd_unmap_hiq(struct amdgpu_device *adev, u32 doorbell_off,
818 u32 inst)
819{
820 struct amdgpu_kiq *kiq = &adev->gfx.kiq[inst];
821 struct amdgpu_ring *kiq_ring = &kiq->ring;
822 struct amdgpu_ring_funcs *ring_funcs;
823 struct amdgpu_ring *ring;
824 int r = 0;
825
826 if (!kiq->pmf || !kiq->pmf->kiq_unmap_queues)
827 return -EINVAL;
828
829 ring_funcs = kzalloc(sizeof(*ring_funcs), GFP_KERNEL);
830 if (!ring_funcs)
831 return -ENOMEM;
832
833 ring = kzalloc(sizeof(*ring), GFP_KERNEL);
834 if (!ring) {
835 r = -ENOMEM;
836 goto free_ring_funcs;
837 }
838
839 ring_funcs->type = AMDGPU_RING_TYPE_COMPUTE;
840 ring->doorbell_index = doorbell_off;
841 ring->funcs = ring_funcs;
842
843 spin_lock(&kiq->ring_lock);
844
845 if (amdgpu_ring_alloc(kiq_ring, kiq->pmf->unmap_queues_size)) {
846 spin_unlock(&kiq->ring_lock);
847 r = -ENOMEM;
848 goto free_ring;
849 }
850
851 kiq->pmf->kiq_unmap_queues(kiq_ring, ring, RESET_QUEUES, 0, 0);
852
853 if (kiq_ring->sched.ready && !adev->job_hang)
854 r = amdgpu_ring_test_helper(kiq_ring);
855
856 spin_unlock(&kiq->ring_lock);
857
858free_ring:
859 kfree(ring);
860
861free_ring_funcs:
862 kfree(ring_funcs);
863
864 return r;
865}
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_shared.h"
25
26#include "amdgpu.h"
27#include "amdgpu_gfx.h"
28#include "amdgpu_dma_buf.h"
29#include <linux/module.h>
30#include <linux/dma-buf.h>
31#include "amdgpu_xgmi.h"
32#include <uapi/linux/kfd_ioctl.h>
33
34/* Total memory size in system memory and all GPU VRAM. Used to
35 * estimate worst case amount of memory to reserve for page tables
36 */
37uint64_t amdgpu_amdkfd_total_mem_size;
38
39static bool kfd_initialized;
40
41int amdgpu_amdkfd_init(void)
42{
43 struct sysinfo si;
44 int ret;
45
46 si_meminfo(&si);
47 amdgpu_amdkfd_total_mem_size = si.freeram - si.freehigh;
48 amdgpu_amdkfd_total_mem_size *= si.mem_unit;
49
50 ret = kgd2kfd_init();
51 amdgpu_amdkfd_gpuvm_init_mem_limits();
52 kfd_initialized = !ret;
53
54 return ret;
55}
56
57void amdgpu_amdkfd_fini(void)
58{
59 if (kfd_initialized) {
60 kgd2kfd_exit();
61 kfd_initialized = false;
62 }
63}
64
65void amdgpu_amdkfd_device_probe(struct amdgpu_device *adev)
66{
67 bool vf = amdgpu_sriov_vf(adev);
68
69 if (!kfd_initialized)
70 return;
71
72 adev->kfd.dev = kgd2kfd_probe((struct kgd_dev *)adev,
73 adev->pdev, adev->asic_type, vf);
74
75 if (adev->kfd.dev)
76 amdgpu_amdkfd_total_mem_size += adev->gmc.real_vram_size;
77}
78
79/**
80 * amdgpu_doorbell_get_kfd_info - Report doorbell configuration required to
81 * setup amdkfd
82 *
83 * @adev: amdgpu_device pointer
84 * @aperture_base: output returning doorbell aperture base physical address
85 * @aperture_size: output returning doorbell aperture size in bytes
86 * @start_offset: output returning # of doorbell bytes reserved for amdgpu.
87 *
88 * amdgpu and amdkfd share the doorbell aperture. amdgpu sets it up,
89 * takes doorbells required for its own rings and reports the setup to amdkfd.
90 * amdgpu reserved doorbells are at the start of the doorbell aperture.
91 */
92static void amdgpu_doorbell_get_kfd_info(struct amdgpu_device *adev,
93 phys_addr_t *aperture_base,
94 size_t *aperture_size,
95 size_t *start_offset)
96{
97 /*
98 * The first num_doorbells are used by amdgpu.
99 * amdkfd takes whatever's left in the aperture.
100 */
101 if (adev->doorbell.size > adev->doorbell.num_doorbells * sizeof(u32)) {
102 *aperture_base = adev->doorbell.base;
103 *aperture_size = adev->doorbell.size;
104 *start_offset = adev->doorbell.num_doorbells * sizeof(u32);
105 } else {
106 *aperture_base = 0;
107 *aperture_size = 0;
108 *start_offset = 0;
109 }
110}
111
112void amdgpu_amdkfd_device_init(struct amdgpu_device *adev)
113{
114 int i;
115 int last_valid_bit;
116
117 if (adev->kfd.dev) {
118 struct kgd2kfd_shared_resources gpu_resources = {
119 .compute_vmid_bitmap =
120 ((1 << AMDGPU_NUM_VMID) - 1) -
121 ((1 << adev->vm_manager.first_kfd_vmid) - 1),
122 .num_pipe_per_mec = adev->gfx.mec.num_pipe_per_mec,
123 .num_queue_per_pipe = adev->gfx.mec.num_queue_per_pipe,
124 .gpuvm_size = min(adev->vm_manager.max_pfn
125 << AMDGPU_GPU_PAGE_SHIFT,
126 AMDGPU_GMC_HOLE_START),
127 .drm_render_minor = adev_to_drm(adev)->render->index,
128 .sdma_doorbell_idx = adev->doorbell_index.sdma_engine,
129
130 };
131
132 /* this is going to have a few of the MSBs set that we need to
133 * clear
134 */
135 bitmap_complement(gpu_resources.cp_queue_bitmap,
136 adev->gfx.mec.queue_bitmap,
137 KGD_MAX_QUEUES);
138
139 /* According to linux/bitmap.h we shouldn't use bitmap_clear if
140 * nbits is not compile time constant
141 */
142 last_valid_bit = 1 /* only first MEC can have compute queues */
143 * adev->gfx.mec.num_pipe_per_mec
144 * adev->gfx.mec.num_queue_per_pipe;
145 for (i = last_valid_bit; i < KGD_MAX_QUEUES; ++i)
146 clear_bit(i, gpu_resources.cp_queue_bitmap);
147
148 amdgpu_doorbell_get_kfd_info(adev,
149 &gpu_resources.doorbell_physical_address,
150 &gpu_resources.doorbell_aperture_size,
151 &gpu_resources.doorbell_start_offset);
152
153 /* Since SOC15, BIF starts to statically use the
154 * lower 12 bits of doorbell addresses for routing
155 * based on settings in registers like
156 * SDMA0_DOORBELL_RANGE etc..
157 * In order to route a doorbell to CP engine, the lower
158 * 12 bits of its address has to be outside the range
159 * set for SDMA, VCN, and IH blocks.
160 */
161 if (adev->asic_type >= CHIP_VEGA10) {
162 gpu_resources.non_cp_doorbells_start =
163 adev->doorbell_index.first_non_cp;
164 gpu_resources.non_cp_doorbells_end =
165 adev->doorbell_index.last_non_cp;
166 }
167
168 adev->kfd.init_complete = kgd2kfd_device_init(adev->kfd.dev,
169 adev_to_drm(adev), &gpu_resources);
170 }
171}
172
173void amdgpu_amdkfd_device_fini_sw(struct amdgpu_device *adev)
174{
175 if (adev->kfd.dev) {
176 kgd2kfd_device_exit(adev->kfd.dev);
177 adev->kfd.dev = NULL;
178 }
179}
180
181void amdgpu_amdkfd_interrupt(struct amdgpu_device *adev,
182 const void *ih_ring_entry)
183{
184 if (adev->kfd.dev)
185 kgd2kfd_interrupt(adev->kfd.dev, ih_ring_entry);
186}
187
188void amdgpu_amdkfd_suspend(struct amdgpu_device *adev, bool run_pm)
189{
190 if (adev->kfd.dev)
191 kgd2kfd_suspend(adev->kfd.dev, run_pm);
192}
193
194int amdgpu_amdkfd_resume_iommu(struct amdgpu_device *adev)
195{
196 int r = 0;
197
198 if (adev->kfd.dev)
199 r = kgd2kfd_resume_iommu(adev->kfd.dev);
200
201 return r;
202}
203
204int amdgpu_amdkfd_resume(struct amdgpu_device *adev, bool run_pm)
205{
206 int r = 0;
207
208 if (adev->kfd.dev)
209 r = kgd2kfd_resume(adev->kfd.dev, run_pm);
210
211 return r;
212}
213
214int amdgpu_amdkfd_pre_reset(struct amdgpu_device *adev)
215{
216 int r = 0;
217
218 if (adev->kfd.dev)
219 r = kgd2kfd_pre_reset(adev->kfd.dev);
220
221 return r;
222}
223
224int amdgpu_amdkfd_post_reset(struct amdgpu_device *adev)
225{
226 int r = 0;
227
228 if (adev->kfd.dev)
229 r = kgd2kfd_post_reset(adev->kfd.dev);
230
231 return r;
232}
233
234void amdgpu_amdkfd_gpu_reset(struct kgd_dev *kgd)
235{
236 struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
237
238 if (amdgpu_device_should_recover_gpu(adev))
239 amdgpu_device_gpu_recover(adev, NULL);
240}
241
242int amdgpu_amdkfd_alloc_gtt_mem(struct kgd_dev *kgd, size_t size,
243 void **mem_obj, uint64_t *gpu_addr,
244 void **cpu_ptr, bool cp_mqd_gfx9)
245{
246 struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
247 struct amdgpu_bo *bo = NULL;
248 struct amdgpu_bo_param bp;
249 int r;
250 void *cpu_ptr_tmp = NULL;
251
252 memset(&bp, 0, sizeof(bp));
253 bp.size = size;
254 bp.byte_align = PAGE_SIZE;
255 bp.domain = AMDGPU_GEM_DOMAIN_GTT;
256 bp.flags = AMDGPU_GEM_CREATE_CPU_GTT_USWC;
257 bp.type = ttm_bo_type_kernel;
258 bp.resv = NULL;
259 bp.bo_ptr_size = sizeof(struct amdgpu_bo);
260
261 if (cp_mqd_gfx9)
262 bp.flags |= AMDGPU_GEM_CREATE_CP_MQD_GFX9;
263
264 r = amdgpu_bo_create(adev, &bp, &bo);
265 if (r) {
266 dev_err(adev->dev,
267 "failed to allocate BO for amdkfd (%d)\n", r);
268 return r;
269 }
270
271 /* map the buffer */
272 r = amdgpu_bo_reserve(bo, true);
273 if (r) {
274 dev_err(adev->dev, "(%d) failed to reserve bo for amdkfd\n", r);
275 goto allocate_mem_reserve_bo_failed;
276 }
277
278 r = amdgpu_bo_pin(bo, AMDGPU_GEM_DOMAIN_GTT);
279 if (r) {
280 dev_err(adev->dev, "(%d) failed to pin bo for amdkfd\n", r);
281 goto allocate_mem_pin_bo_failed;
282 }
283
284 r = amdgpu_ttm_alloc_gart(&bo->tbo);
285 if (r) {
286 dev_err(adev->dev, "%p bind failed\n", bo);
287 goto allocate_mem_kmap_bo_failed;
288 }
289
290 r = amdgpu_bo_kmap(bo, &cpu_ptr_tmp);
291 if (r) {
292 dev_err(adev->dev,
293 "(%d) failed to map bo to kernel for amdkfd\n", r);
294 goto allocate_mem_kmap_bo_failed;
295 }
296
297 *mem_obj = bo;
298 *gpu_addr = amdgpu_bo_gpu_offset(bo);
299 *cpu_ptr = cpu_ptr_tmp;
300
301 amdgpu_bo_unreserve(bo);
302
303 return 0;
304
305allocate_mem_kmap_bo_failed:
306 amdgpu_bo_unpin(bo);
307allocate_mem_pin_bo_failed:
308 amdgpu_bo_unreserve(bo);
309allocate_mem_reserve_bo_failed:
310 amdgpu_bo_unref(&bo);
311
312 return r;
313}
314
315void amdgpu_amdkfd_free_gtt_mem(struct kgd_dev *kgd, void *mem_obj)
316{
317 struct amdgpu_bo *bo = (struct amdgpu_bo *) mem_obj;
318
319 amdgpu_bo_reserve(bo, true);
320 amdgpu_bo_kunmap(bo);
321 amdgpu_bo_unpin(bo);
322 amdgpu_bo_unreserve(bo);
323 amdgpu_bo_unref(&(bo));
324}
325
326int amdgpu_amdkfd_alloc_gws(struct kgd_dev *kgd, size_t size,
327 void **mem_obj)
328{
329 struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
330 struct amdgpu_bo *bo = NULL;
331 struct amdgpu_bo_user *ubo;
332 struct amdgpu_bo_param bp;
333 int r;
334
335 memset(&bp, 0, sizeof(bp));
336 bp.size = size;
337 bp.byte_align = 1;
338 bp.domain = AMDGPU_GEM_DOMAIN_GWS;
339 bp.flags = AMDGPU_GEM_CREATE_NO_CPU_ACCESS;
340 bp.type = ttm_bo_type_device;
341 bp.resv = NULL;
342 bp.bo_ptr_size = sizeof(struct amdgpu_bo);
343
344 r = amdgpu_bo_create_user(adev, &bp, &ubo);
345 if (r) {
346 dev_err(adev->dev,
347 "failed to allocate gws BO for amdkfd (%d)\n", r);
348 return r;
349 }
350
351 bo = &ubo->bo;
352 *mem_obj = bo;
353 return 0;
354}
355
356void amdgpu_amdkfd_free_gws(struct kgd_dev *kgd, void *mem_obj)
357{
358 struct amdgpu_bo *bo = (struct amdgpu_bo *)mem_obj;
359
360 amdgpu_bo_unref(&bo);
361}
362
363uint32_t amdgpu_amdkfd_get_fw_version(struct kgd_dev *kgd,
364 enum kgd_engine_type type)
365{
366 struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
367
368 switch (type) {
369 case KGD_ENGINE_PFP:
370 return adev->gfx.pfp_fw_version;
371
372 case KGD_ENGINE_ME:
373 return adev->gfx.me_fw_version;
374
375 case KGD_ENGINE_CE:
376 return adev->gfx.ce_fw_version;
377
378 case KGD_ENGINE_MEC1:
379 return adev->gfx.mec_fw_version;
380
381 case KGD_ENGINE_MEC2:
382 return adev->gfx.mec2_fw_version;
383
384 case KGD_ENGINE_RLC:
385 return adev->gfx.rlc_fw_version;
386
387 case KGD_ENGINE_SDMA1:
388 return adev->sdma.instance[0].fw_version;
389
390 case KGD_ENGINE_SDMA2:
391 return adev->sdma.instance[1].fw_version;
392
393 default:
394 return 0;
395 }
396
397 return 0;
398}
399
400void amdgpu_amdkfd_get_local_mem_info(struct kgd_dev *kgd,
401 struct kfd_local_mem_info *mem_info)
402{
403 struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
404
405 memset(mem_info, 0, sizeof(*mem_info));
406
407 mem_info->local_mem_size_public = adev->gmc.visible_vram_size;
408 mem_info->local_mem_size_private = adev->gmc.real_vram_size -
409 adev->gmc.visible_vram_size;
410
411 mem_info->vram_width = adev->gmc.vram_width;
412
413 pr_debug("Address base: %pap public 0x%llx private 0x%llx\n",
414 &adev->gmc.aper_base,
415 mem_info->local_mem_size_public,
416 mem_info->local_mem_size_private);
417
418 if (amdgpu_sriov_vf(adev))
419 mem_info->mem_clk_max = adev->clock.default_mclk / 100;
420 else if (adev->pm.dpm_enabled) {
421 if (amdgpu_emu_mode == 1)
422 mem_info->mem_clk_max = 0;
423 else
424 mem_info->mem_clk_max = amdgpu_dpm_get_mclk(adev, false) / 100;
425 } else
426 mem_info->mem_clk_max = 100;
427}
428
429uint64_t amdgpu_amdkfd_get_gpu_clock_counter(struct kgd_dev *kgd)
430{
431 struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
432
433 if (adev->gfx.funcs->get_gpu_clock_counter)
434 return adev->gfx.funcs->get_gpu_clock_counter(adev);
435 return 0;
436}
437
438uint32_t amdgpu_amdkfd_get_max_engine_clock_in_mhz(struct kgd_dev *kgd)
439{
440 struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
441
442 /* the sclk is in quantas of 10kHz */
443 if (amdgpu_sriov_vf(adev))
444 return adev->clock.default_sclk / 100;
445 else if (adev->pm.dpm_enabled)
446 return amdgpu_dpm_get_sclk(adev, false) / 100;
447 else
448 return 100;
449}
450
451void amdgpu_amdkfd_get_cu_info(struct kgd_dev *kgd, struct kfd_cu_info *cu_info)
452{
453 struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
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
474int amdgpu_amdkfd_get_dmabuf_info(struct kgd_dev *kgd, int dma_buf_fd,
475 struct kgd_dev **dma_buf_kgd,
476 uint64_t *bo_size, void *metadata_buffer,
477 size_t buffer_size, uint32_t *metadata_size,
478 uint32_t *flags)
479{
480 struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
481 struct dma_buf *dma_buf;
482 struct drm_gem_object *obj;
483 struct amdgpu_bo *bo;
484 uint64_t metadata_flags;
485 int r = -EINVAL;
486
487 dma_buf = dma_buf_get(dma_buf_fd);
488 if (IS_ERR(dma_buf))
489 return PTR_ERR(dma_buf);
490
491 if (dma_buf->ops != &amdgpu_dmabuf_ops)
492 /* Can't handle non-graphics buffers */
493 goto out_put;
494
495 obj = dma_buf->priv;
496 if (obj->dev->driver != adev_to_drm(adev)->driver)
497 /* Can't handle buffers from different drivers */
498 goto out_put;
499
500 adev = drm_to_adev(obj->dev);
501 bo = gem_to_amdgpu_bo(obj);
502 if (!(bo->preferred_domains & (AMDGPU_GEM_DOMAIN_VRAM |
503 AMDGPU_GEM_DOMAIN_GTT)))
504 /* Only VRAM and GTT BOs are supported */
505 goto out_put;
506
507 r = 0;
508 if (dma_buf_kgd)
509 *dma_buf_kgd = (struct kgd_dev *)adev;
510 if (bo_size)
511 *bo_size = amdgpu_bo_size(bo);
512 if (metadata_buffer)
513 r = amdgpu_bo_get_metadata(bo, metadata_buffer, buffer_size,
514 metadata_size, &metadata_flags);
515 if (flags) {
516 *flags = (bo->preferred_domains & AMDGPU_GEM_DOMAIN_VRAM) ?
517 KFD_IOC_ALLOC_MEM_FLAGS_VRAM
518 : KFD_IOC_ALLOC_MEM_FLAGS_GTT;
519
520 if (bo->flags & AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED)
521 *flags |= KFD_IOC_ALLOC_MEM_FLAGS_PUBLIC;
522 }
523
524out_put:
525 dma_buf_put(dma_buf);
526 return r;
527}
528
529uint64_t amdgpu_amdkfd_get_vram_usage(struct kgd_dev *kgd)
530{
531 struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
532 struct ttm_resource_manager *vram_man = ttm_manager_type(&adev->mman.bdev, TTM_PL_VRAM);
533
534 return amdgpu_vram_mgr_usage(vram_man);
535}
536
537uint64_t amdgpu_amdkfd_get_hive_id(struct kgd_dev *kgd)
538{
539 struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
540
541 return adev->gmc.xgmi.hive_id;
542}
543
544uint64_t amdgpu_amdkfd_get_unique_id(struct kgd_dev *kgd)
545{
546 struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
547
548 return adev->unique_id;
549}
550
551uint8_t amdgpu_amdkfd_get_xgmi_hops_count(struct kgd_dev *dst, struct kgd_dev *src)
552{
553 struct amdgpu_device *peer_adev = (struct amdgpu_device *)src;
554 struct amdgpu_device *adev = (struct amdgpu_device *)dst;
555 int ret = amdgpu_xgmi_get_hops_count(adev, peer_adev);
556
557 if (ret < 0) {
558 DRM_ERROR("amdgpu: failed to get xgmi hops count between node %d and %d. ret = %d\n",
559 adev->gmc.xgmi.physical_node_id,
560 peer_adev->gmc.xgmi.physical_node_id, ret);
561 ret = 0;
562 }
563 return (uint8_t)ret;
564}
565
566uint64_t amdgpu_amdkfd_get_mmio_remap_phys_addr(struct kgd_dev *kgd)
567{
568 struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
569
570 return adev->rmmio_remap.bus_addr;
571}
572
573uint32_t amdgpu_amdkfd_get_num_gws(struct kgd_dev *kgd)
574{
575 struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
576
577 return adev->gds.gws_size;
578}
579
580uint32_t amdgpu_amdkfd_get_asic_rev_id(struct kgd_dev *kgd)
581{
582 struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
583
584 return adev->rev_id;
585}
586
587int amdgpu_amdkfd_get_noretry(struct kgd_dev *kgd)
588{
589 struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
590
591 return adev->gmc.noretry;
592}
593
594int amdgpu_amdkfd_submit_ib(struct kgd_dev *kgd, enum kgd_engine_type engine,
595 uint32_t vmid, uint64_t gpu_addr,
596 uint32_t *ib_cmd, uint32_t ib_len)
597{
598 struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
599 struct amdgpu_job *job;
600 struct amdgpu_ib *ib;
601 struct amdgpu_ring *ring;
602 struct dma_fence *f = NULL;
603 int ret;
604
605 switch (engine) {
606 case KGD_ENGINE_MEC1:
607 ring = &adev->gfx.compute_ring[0];
608 break;
609 case KGD_ENGINE_SDMA1:
610 ring = &adev->sdma.instance[0].ring;
611 break;
612 case KGD_ENGINE_SDMA2:
613 ring = &adev->sdma.instance[1].ring;
614 break;
615 default:
616 pr_err("Invalid engine in IB submission: %d\n", engine);
617 ret = -EINVAL;
618 goto err;
619 }
620
621 ret = amdgpu_job_alloc(adev, 1, &job, NULL);
622 if (ret)
623 goto err;
624
625 ib = &job->ibs[0];
626 memset(ib, 0, sizeof(struct amdgpu_ib));
627
628 ib->gpu_addr = gpu_addr;
629 ib->ptr = ib_cmd;
630 ib->length_dw = ib_len;
631 /* This works for NO_HWS. TODO: need to handle without knowing VMID */
632 job->vmid = vmid;
633
634 ret = amdgpu_ib_schedule(ring, 1, ib, job, &f);
635
636 if (ret) {
637 DRM_ERROR("amdgpu: failed to schedule IB.\n");
638 goto err_ib_sched;
639 }
640
641 ret = dma_fence_wait(f, false);
642
643err_ib_sched:
644 dma_fence_put(f);
645 amdgpu_job_free(job);
646err:
647 return ret;
648}
649
650void amdgpu_amdkfd_set_compute_idle(struct kgd_dev *kgd, bool idle)
651{
652 struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
653
654 amdgpu_dpm_switch_power_profile(adev,
655 PP_SMC_POWER_PROFILE_COMPUTE,
656 !idle);
657}
658
659bool amdgpu_amdkfd_is_kfd_vmid(struct amdgpu_device *adev, u32 vmid)
660{
661 if (adev->kfd.dev)
662 return vmid >= adev->vm_manager.first_kfd_vmid;
663
664 return false;
665}
666
667int amdgpu_amdkfd_flush_gpu_tlb_vmid(struct kgd_dev *kgd, uint16_t vmid)
668{
669 struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
670
671 if (adev->family == AMDGPU_FAMILY_AI) {
672 int i;
673
674 for (i = 0; i < adev->num_vmhubs; i++)
675 amdgpu_gmc_flush_gpu_tlb(adev, vmid, i, 0);
676 } else {
677 amdgpu_gmc_flush_gpu_tlb(adev, vmid, AMDGPU_GFXHUB_0, 0);
678 }
679
680 return 0;
681}
682
683int amdgpu_amdkfd_flush_gpu_tlb_pasid(struct kgd_dev *kgd, uint16_t pasid,
684 enum TLB_FLUSH_TYPE flush_type)
685{
686 struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
687 bool all_hub = false;
688
689 if (adev->family == AMDGPU_FAMILY_AI)
690 all_hub = true;
691
692 return amdgpu_gmc_flush_gpu_tlb_pasid(adev, pasid, flush_type, all_hub);
693}
694
695bool amdgpu_amdkfd_have_atomics_support(struct kgd_dev *kgd)
696{
697 struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
698
699 return adev->have_atomics_support;
700}