xref: /linux/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c (revision e332935a540eb76dd656663ca908eb0544d96757)
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  */
43 uint64_t amdgpu_amdkfd_total_mem_size;
44 
45 static bool kfd_initialized;
46 
amdgpu_amdkfd_init(void)47 int 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 
amdgpu_amdkfd_fini(void)62 void amdgpu_amdkfd_fini(void)
63 {
64 	if (kfd_initialized) {
65 		kgd2kfd_exit();
66 		kfd_initialized = false;
67 	}
68 }
69 
amdgpu_amdkfd_device_probe(struct amdgpu_device * adev)70 void 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  */
amdgpu_doorbell_get_kfd_info(struct amdgpu_device * adev,phys_addr_t * aperture_base,size_t * aperture_size,size_t * start_offset)93 static 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 
amdgpu_amdkfd_reset_work(struct work_struct * work)125 static 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 	reset_context.src = adev->enable_mes ?
137 			    AMDGPU_RESET_SRC_MES :
138 			    AMDGPU_RESET_SRC_HWS;
139 	clear_bit(AMDGPU_NEED_FULL_RESET, &reset_context.flags);
140 
141 	amdgpu_device_gpu_recover(adev, NULL, &reset_context);
142 }
143 
144 static const struct drm_client_funcs kfd_client_funcs = {
145 	.unregister	= drm_client_release,
146 };
147 
amdgpu_amdkfd_drm_client_create(struct amdgpu_device * adev)148 int amdgpu_amdkfd_drm_client_create(struct amdgpu_device *adev)
149 {
150 	int ret;
151 
152 	if (!adev->kfd.init_complete || adev->kfd.client.dev)
153 		return 0;
154 
155 	ret = drm_client_init(&adev->ddev, &adev->kfd.client, "kfd",
156 			      &kfd_client_funcs);
157 	if (ret) {
158 		dev_err(adev->dev, "Failed to init DRM client: %d\n",
159 			ret);
160 		return ret;
161 	}
162 
163 	drm_client_register(&adev->kfd.client);
164 
165 	return 0;
166 }
167 
amdgpu_amdkfd_device_init(struct amdgpu_device * adev)168 void amdgpu_amdkfd_device_init(struct amdgpu_device *adev)
169 {
170 	int i;
171 	int last_valid_bit;
172 
173 	amdgpu_amdkfd_gpuvm_init_mem_limits();
174 
175 	if (adev->kfd.dev) {
176 		struct kgd2kfd_shared_resources gpu_resources = {
177 			.compute_vmid_bitmap =
178 				((1 << AMDGPU_NUM_VMID) - 1) -
179 				((1 << adev->vm_manager.first_kfd_vmid) - 1),
180 			.num_pipe_per_mec = adev->gfx.mec.num_pipe_per_mec,
181 			.num_queue_per_pipe = adev->gfx.mec.num_queue_per_pipe,
182 			.gpuvm_size = min(adev->vm_manager.max_pfn
183 					  << AMDGPU_GPU_PAGE_SHIFT,
184 					  AMDGPU_GMC_HOLE_START),
185 			.drm_render_minor = adev_to_drm(adev)->render->index,
186 			.sdma_doorbell_idx = adev->doorbell_index.sdma_engine,
187 			.enable_mes = adev->enable_mes,
188 		};
189 
190 		/* this is going to have a few of the MSBs set that we need to
191 		 * clear
192 		 */
193 		bitmap_complement(gpu_resources.cp_queue_bitmap,
194 				  adev->gfx.mec_bitmap[0].queue_bitmap,
195 				  AMDGPU_MAX_QUEUES);
196 
197 		/* According to linux/bitmap.h we shouldn't use bitmap_clear if
198 		 * nbits is not compile time constant
199 		 */
200 		last_valid_bit = 1 /* only first MEC can have compute queues */
201 				* adev->gfx.mec.num_pipe_per_mec
202 				* adev->gfx.mec.num_queue_per_pipe;
203 		for (i = last_valid_bit; i < AMDGPU_MAX_QUEUES; ++i)
204 			clear_bit(i, gpu_resources.cp_queue_bitmap);
205 
206 		amdgpu_doorbell_get_kfd_info(adev,
207 				&gpu_resources.doorbell_physical_address,
208 				&gpu_resources.doorbell_aperture_size,
209 				&gpu_resources.doorbell_start_offset);
210 
211 		/* Since SOC15, BIF starts to statically use the
212 		 * lower 12 bits of doorbell addresses for routing
213 		 * based on settings in registers like
214 		 * SDMA0_DOORBELL_RANGE etc..
215 		 * In order to route a doorbell to CP engine, the lower
216 		 * 12 bits of its address has to be outside the range
217 		 * set for SDMA, VCN, and IH blocks.
218 		 */
219 		if (adev->asic_type >= CHIP_VEGA10) {
220 			gpu_resources.non_cp_doorbells_start =
221 					adev->doorbell_index.first_non_cp;
222 			gpu_resources.non_cp_doorbells_end =
223 					adev->doorbell_index.last_non_cp;
224 		}
225 
226 		adev->kfd.init_complete = kgd2kfd_device_init(adev->kfd.dev,
227 							&gpu_resources);
228 
229 		amdgpu_amdkfd_total_mem_size += adev->gmc.real_vram_size;
230 
231 		INIT_WORK(&adev->kfd.reset_work, amdgpu_amdkfd_reset_work);
232 	}
233 }
234 
amdgpu_amdkfd_device_fini_sw(struct amdgpu_device * adev)235 void amdgpu_amdkfd_device_fini_sw(struct amdgpu_device *adev)
236 {
237 	if (adev->kfd.dev) {
238 		kgd2kfd_device_exit(adev->kfd.dev);
239 		adev->kfd.dev = NULL;
240 		amdgpu_amdkfd_total_mem_size -= adev->gmc.real_vram_size;
241 	}
242 }
243 
amdgpu_amdkfd_interrupt(struct amdgpu_device * adev,const void * ih_ring_entry)244 void amdgpu_amdkfd_interrupt(struct amdgpu_device *adev,
245 		const void *ih_ring_entry)
246 {
247 	if (adev->kfd.dev)
248 		kgd2kfd_interrupt(adev->kfd.dev, ih_ring_entry);
249 }
250 
amdgpu_amdkfd_suspend(struct amdgpu_device * adev,bool run_pm)251 void amdgpu_amdkfd_suspend(struct amdgpu_device *adev, bool run_pm)
252 {
253 	if (adev->kfd.dev)
254 		kgd2kfd_suspend(adev->kfd.dev, run_pm);
255 }
256 
amdgpu_amdkfd_resume(struct amdgpu_device * adev,bool run_pm)257 int amdgpu_amdkfd_resume(struct amdgpu_device *adev, bool run_pm)
258 {
259 	int r = 0;
260 
261 	if (adev->kfd.dev)
262 		r = kgd2kfd_resume(adev->kfd.dev, run_pm);
263 
264 	return r;
265 }
266 
amdgpu_amdkfd_pre_reset(struct amdgpu_device * adev,struct amdgpu_reset_context * reset_context)267 int amdgpu_amdkfd_pre_reset(struct amdgpu_device *adev,
268 			    struct amdgpu_reset_context *reset_context)
269 {
270 	int r = 0;
271 
272 	if (adev->kfd.dev)
273 		r = kgd2kfd_pre_reset(adev->kfd.dev, reset_context);
274 
275 	return r;
276 }
277 
amdgpu_amdkfd_post_reset(struct amdgpu_device * adev)278 int amdgpu_amdkfd_post_reset(struct amdgpu_device *adev)
279 {
280 	int r = 0;
281 
282 	if (adev->kfd.dev)
283 		r = kgd2kfd_post_reset(adev->kfd.dev);
284 
285 	return r;
286 }
287 
amdgpu_amdkfd_gpu_reset(struct amdgpu_device * adev)288 void amdgpu_amdkfd_gpu_reset(struct amdgpu_device *adev)
289 {
290 	if (amdgpu_device_should_recover_gpu(adev))
291 		amdgpu_reset_domain_schedule(adev->reset_domain,
292 					     &adev->kfd.reset_work);
293 }
294 
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)295 int amdgpu_amdkfd_alloc_gtt_mem(struct amdgpu_device *adev, size_t size,
296 				void **mem_obj, uint64_t *gpu_addr,
297 				void **cpu_ptr, bool cp_mqd_gfx9)
298 {
299 	struct amdgpu_bo *bo = NULL;
300 	struct amdgpu_bo_param bp;
301 	int r;
302 	void *cpu_ptr_tmp = NULL;
303 
304 	memset(&bp, 0, sizeof(bp));
305 	bp.size = size;
306 	bp.byte_align = PAGE_SIZE;
307 	bp.domain = AMDGPU_GEM_DOMAIN_GTT;
308 	bp.flags = AMDGPU_GEM_CREATE_CPU_GTT_USWC;
309 	bp.type = ttm_bo_type_kernel;
310 	bp.resv = NULL;
311 	bp.bo_ptr_size = sizeof(struct amdgpu_bo);
312 
313 	if (cp_mqd_gfx9)
314 		bp.flags |= AMDGPU_GEM_CREATE_CP_MQD_GFX9;
315 
316 	r = amdgpu_bo_create(adev, &bp, &bo);
317 	if (r) {
318 		dev_err(adev->dev,
319 			"failed to allocate BO for amdkfd (%d)\n", r);
320 		return r;
321 	}
322 
323 	/* map the buffer */
324 	r = amdgpu_bo_reserve(bo, true);
325 	if (r) {
326 		dev_err(adev->dev, "(%d) failed to reserve bo for amdkfd\n", r);
327 		goto allocate_mem_reserve_bo_failed;
328 	}
329 
330 	r = amdgpu_bo_pin(bo, AMDGPU_GEM_DOMAIN_GTT);
331 	if (r) {
332 		dev_err(adev->dev, "(%d) failed to pin bo for amdkfd\n", r);
333 		goto allocate_mem_pin_bo_failed;
334 	}
335 
336 	r = amdgpu_ttm_alloc_gart(&bo->tbo);
337 	if (r) {
338 		dev_err(adev->dev, "%p bind failed\n", bo);
339 		goto allocate_mem_kmap_bo_failed;
340 	}
341 
342 	r = amdgpu_bo_kmap(bo, &cpu_ptr_tmp);
343 	if (r) {
344 		dev_err(adev->dev,
345 			"(%d) failed to map bo to kernel for amdkfd\n", r);
346 		goto allocate_mem_kmap_bo_failed;
347 	}
348 
349 	*mem_obj = bo;
350 	*gpu_addr = amdgpu_bo_gpu_offset(bo);
351 	*cpu_ptr = cpu_ptr_tmp;
352 
353 	amdgpu_bo_unreserve(bo);
354 
355 	return 0;
356 
357 allocate_mem_kmap_bo_failed:
358 	amdgpu_bo_unpin(bo);
359 allocate_mem_pin_bo_failed:
360 	amdgpu_bo_unreserve(bo);
361 allocate_mem_reserve_bo_failed:
362 	amdgpu_bo_unref(&bo);
363 
364 	return r;
365 }
366 
amdgpu_amdkfd_free_gtt_mem(struct amdgpu_device * adev,void ** mem_obj)367 void amdgpu_amdkfd_free_gtt_mem(struct amdgpu_device *adev, void **mem_obj)
368 {
369 	struct amdgpu_bo **bo = (struct amdgpu_bo **) mem_obj;
370 
371 	if (!bo || !*bo)
372 		return;
373 
374 	(void)amdgpu_bo_reserve(*bo, true);
375 	amdgpu_bo_kunmap(*bo);
376 	amdgpu_bo_unpin(*bo);
377 	amdgpu_bo_unreserve(*bo);
378 	amdgpu_bo_unref(bo);
379 }
380 
amdgpu_amdkfd_alloc_gws(struct amdgpu_device * adev,size_t size,void ** mem_obj)381 int amdgpu_amdkfd_alloc_gws(struct amdgpu_device *adev, size_t size,
382 				void **mem_obj)
383 {
384 	struct amdgpu_bo *bo = NULL;
385 	struct amdgpu_bo_user *ubo;
386 	struct amdgpu_bo_param bp;
387 	int r;
388 
389 	memset(&bp, 0, sizeof(bp));
390 	bp.size = size;
391 	bp.byte_align = 1;
392 	bp.domain = AMDGPU_GEM_DOMAIN_GWS;
393 	bp.flags = AMDGPU_GEM_CREATE_NO_CPU_ACCESS;
394 	bp.type = ttm_bo_type_device;
395 	bp.resv = NULL;
396 	bp.bo_ptr_size = sizeof(struct amdgpu_bo);
397 
398 	r = amdgpu_bo_create_user(adev, &bp, &ubo);
399 	if (r) {
400 		dev_err(adev->dev,
401 			"failed to allocate gws BO for amdkfd (%d)\n", r);
402 		return r;
403 	}
404 
405 	bo = &ubo->bo;
406 	*mem_obj = bo;
407 	return 0;
408 }
409 
amdgpu_amdkfd_free_gws(struct amdgpu_device * adev,void * mem_obj)410 void amdgpu_amdkfd_free_gws(struct amdgpu_device *adev, void *mem_obj)
411 {
412 	struct amdgpu_bo *bo = (struct amdgpu_bo *)mem_obj;
413 
414 	amdgpu_bo_unref(&bo);
415 }
416 
amdgpu_amdkfd_get_fw_version(struct amdgpu_device * adev,enum kgd_engine_type type)417 uint32_t amdgpu_amdkfd_get_fw_version(struct amdgpu_device *adev,
418 				      enum kgd_engine_type type)
419 {
420 	switch (type) {
421 	case KGD_ENGINE_PFP:
422 		return adev->gfx.pfp_fw_version;
423 
424 	case KGD_ENGINE_ME:
425 		return adev->gfx.me_fw_version;
426 
427 	case KGD_ENGINE_CE:
428 		return adev->gfx.ce_fw_version;
429 
430 	case KGD_ENGINE_MEC1:
431 		return adev->gfx.mec_fw_version;
432 
433 	case KGD_ENGINE_MEC2:
434 		return adev->gfx.mec2_fw_version;
435 
436 	case KGD_ENGINE_RLC:
437 		return adev->gfx.rlc_fw_version;
438 
439 	case KGD_ENGINE_SDMA1:
440 		return adev->sdma.instance[0].fw_version;
441 
442 	case KGD_ENGINE_SDMA2:
443 		return adev->sdma.instance[1].fw_version;
444 
445 	default:
446 		return 0;
447 	}
448 
449 	return 0;
450 }
451 
amdgpu_amdkfd_get_local_mem_info(struct amdgpu_device * adev,struct kfd_local_mem_info * mem_info,struct amdgpu_xcp * xcp)452 void amdgpu_amdkfd_get_local_mem_info(struct amdgpu_device *adev,
453 				      struct kfd_local_mem_info *mem_info,
454 				      struct amdgpu_xcp *xcp)
455 {
456 	memset(mem_info, 0, sizeof(*mem_info));
457 
458 	if (xcp) {
459 		if (adev->gmc.real_vram_size == adev->gmc.visible_vram_size)
460 			mem_info->local_mem_size_public =
461 					KFD_XCP_MEMORY_SIZE(adev, xcp->id);
462 		else
463 			mem_info->local_mem_size_private =
464 					KFD_XCP_MEMORY_SIZE(adev, xcp->id);
465 	} else if (adev->apu_prefer_gtt) {
466 		mem_info->local_mem_size_public = (ttm_tt_pages_limit() << PAGE_SHIFT);
467 		mem_info->local_mem_size_private = 0;
468 	} else {
469 		mem_info->local_mem_size_public = adev->gmc.visible_vram_size;
470 		mem_info->local_mem_size_private = adev->gmc.real_vram_size -
471 						adev->gmc.visible_vram_size;
472 	}
473 	mem_info->vram_width = adev->gmc.vram_width;
474 
475 	pr_debug("Address base: %pap public 0x%llx private 0x%llx\n",
476 			&adev->gmc.aper_base,
477 			mem_info->local_mem_size_public,
478 			mem_info->local_mem_size_private);
479 
480 	if (adev->pm.dpm_enabled) {
481 		if (amdgpu_emu_mode == 1)
482 			mem_info->mem_clk_max = 0;
483 		else
484 			mem_info->mem_clk_max = amdgpu_dpm_get_mclk(adev, false) / 100;
485 	} else
486 		mem_info->mem_clk_max = 100;
487 }
488 
amdgpu_amdkfd_get_gpu_clock_counter(struct amdgpu_device * adev)489 uint64_t amdgpu_amdkfd_get_gpu_clock_counter(struct amdgpu_device *adev)
490 {
491 	if (adev->gfx.funcs->get_gpu_clock_counter)
492 		return adev->gfx.funcs->get_gpu_clock_counter(adev);
493 	return 0;
494 }
495 
amdgpu_amdkfd_get_max_engine_clock_in_mhz(struct amdgpu_device * adev)496 uint32_t amdgpu_amdkfd_get_max_engine_clock_in_mhz(struct amdgpu_device *adev)
497 {
498 	/* the sclk is in quantas of 10kHz */
499 	if (adev->pm.dpm_enabled)
500 		return amdgpu_dpm_get_sclk(adev, false) / 100;
501 	else
502 		return 100;
503 }
504 
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,int8_t * xcp_id)505 int amdgpu_amdkfd_get_dmabuf_info(struct amdgpu_device *adev, int dma_buf_fd,
506 				  struct amdgpu_device **dmabuf_adev,
507 				  uint64_t *bo_size, void *metadata_buffer,
508 				  size_t buffer_size, uint32_t *metadata_size,
509 				  uint32_t *flags, int8_t *xcp_id)
510 {
511 	struct dma_buf *dma_buf;
512 	struct drm_gem_object *obj;
513 	struct amdgpu_bo *bo;
514 	uint64_t metadata_flags;
515 	int r = -EINVAL;
516 
517 	dma_buf = dma_buf_get(dma_buf_fd);
518 	if (IS_ERR(dma_buf))
519 		return PTR_ERR(dma_buf);
520 
521 	if (dma_buf->ops != &amdgpu_dmabuf_ops)
522 		/* Can't handle non-graphics buffers */
523 		goto out_put;
524 
525 	obj = dma_buf->priv;
526 	if (obj->dev->driver != adev_to_drm(adev)->driver)
527 		/* Can't handle buffers from different drivers */
528 		goto out_put;
529 
530 	adev = drm_to_adev(obj->dev);
531 	bo = gem_to_amdgpu_bo(obj);
532 	if (!(bo->preferred_domains & (AMDGPU_GEM_DOMAIN_VRAM |
533 				    AMDGPU_GEM_DOMAIN_GTT)))
534 		/* Only VRAM and GTT BOs are supported */
535 		goto out_put;
536 
537 	r = 0;
538 	if (dmabuf_adev)
539 		*dmabuf_adev = adev;
540 	if (bo_size)
541 		*bo_size = amdgpu_bo_size(bo);
542 	if (metadata_buffer)
543 		r = amdgpu_bo_get_metadata(bo, metadata_buffer, buffer_size,
544 					   metadata_size, &metadata_flags);
545 	if (flags) {
546 		*flags = (bo->preferred_domains & AMDGPU_GEM_DOMAIN_VRAM) ?
547 				KFD_IOC_ALLOC_MEM_FLAGS_VRAM
548 				: KFD_IOC_ALLOC_MEM_FLAGS_GTT;
549 
550 		if (bo->flags & AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED)
551 			*flags |= KFD_IOC_ALLOC_MEM_FLAGS_PUBLIC;
552 	}
553 	if (xcp_id)
554 		*xcp_id = bo->xcp_id;
555 
556 out_put:
557 	dma_buf_put(dma_buf);
558 	return r;
559 }
560 
amdgpu_amdkfd_get_pcie_bandwidth_mbytes(struct amdgpu_device * adev,bool is_min)561 int amdgpu_amdkfd_get_pcie_bandwidth_mbytes(struct amdgpu_device *adev, bool is_min)
562 {
563 	int num_lanes_shift = (is_min ? ffs(adev->pm.pcie_mlw_mask) :
564 							fls(adev->pm.pcie_mlw_mask)) - 1;
565 	int gen_speed_shift = (is_min ? ffs(adev->pm.pcie_gen_mask &
566 						CAIL_PCIE_LINK_SPEED_SUPPORT_MASK) :
567 					fls(adev->pm.pcie_gen_mask &
568 						CAIL_PCIE_LINK_SPEED_SUPPORT_MASK)) - 1;
569 	uint32_t num_lanes_mask = 1 << num_lanes_shift;
570 	uint32_t gen_speed_mask = 1 << gen_speed_shift;
571 	int num_lanes_factor = 0, gen_speed_mbits_factor = 0;
572 
573 	switch (num_lanes_mask) {
574 	case CAIL_PCIE_LINK_WIDTH_SUPPORT_X1:
575 		num_lanes_factor = 1;
576 		break;
577 	case CAIL_PCIE_LINK_WIDTH_SUPPORT_X2:
578 		num_lanes_factor = 2;
579 		break;
580 	case CAIL_PCIE_LINK_WIDTH_SUPPORT_X4:
581 		num_lanes_factor = 4;
582 		break;
583 	case CAIL_PCIE_LINK_WIDTH_SUPPORT_X8:
584 		num_lanes_factor = 8;
585 		break;
586 	case CAIL_PCIE_LINK_WIDTH_SUPPORT_X12:
587 		num_lanes_factor = 12;
588 		break;
589 	case CAIL_PCIE_LINK_WIDTH_SUPPORT_X16:
590 		num_lanes_factor = 16;
591 		break;
592 	case CAIL_PCIE_LINK_WIDTH_SUPPORT_X32:
593 		num_lanes_factor = 32;
594 		break;
595 	}
596 
597 	switch (gen_speed_mask) {
598 	case CAIL_PCIE_LINK_SPEED_SUPPORT_GEN1:
599 		gen_speed_mbits_factor = 2500;
600 		break;
601 	case CAIL_PCIE_LINK_SPEED_SUPPORT_GEN2:
602 		gen_speed_mbits_factor = 5000;
603 		break;
604 	case CAIL_PCIE_LINK_SPEED_SUPPORT_GEN3:
605 		gen_speed_mbits_factor = 8000;
606 		break;
607 	case CAIL_PCIE_LINK_SPEED_SUPPORT_GEN4:
608 		gen_speed_mbits_factor = 16000;
609 		break;
610 	case CAIL_PCIE_LINK_SPEED_SUPPORT_GEN5:
611 		gen_speed_mbits_factor = 32000;
612 		break;
613 	}
614 
615 	return (num_lanes_factor * gen_speed_mbits_factor)/BITS_PER_BYTE;
616 }
617 
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)618 int amdgpu_amdkfd_submit_ib(struct amdgpu_device *adev,
619 				enum kgd_engine_type engine,
620 				uint32_t vmid, uint64_t gpu_addr,
621 				uint32_t *ib_cmd, uint32_t ib_len)
622 {
623 	struct amdgpu_job *job;
624 	struct amdgpu_ib *ib;
625 	struct amdgpu_ring *ring;
626 	struct dma_fence *f = NULL;
627 	int ret;
628 
629 	switch (engine) {
630 	case KGD_ENGINE_MEC1:
631 		ring = &adev->gfx.compute_ring[0];
632 		break;
633 	case KGD_ENGINE_SDMA1:
634 		ring = &adev->sdma.instance[0].ring;
635 		break;
636 	case KGD_ENGINE_SDMA2:
637 		ring = &adev->sdma.instance[1].ring;
638 		break;
639 	default:
640 		pr_err("Invalid engine in IB submission: %d\n", engine);
641 		ret = -EINVAL;
642 		goto err;
643 	}
644 
645 	ret = amdgpu_job_alloc(adev, NULL, NULL, NULL, 1, &job);
646 	if (ret)
647 		goto err;
648 
649 	ib = &job->ibs[0];
650 	memset(ib, 0, sizeof(struct amdgpu_ib));
651 
652 	ib->gpu_addr = gpu_addr;
653 	ib->ptr = ib_cmd;
654 	ib->length_dw = ib_len;
655 	/* This works for NO_HWS. TODO: need to handle without knowing VMID */
656 	job->vmid = vmid;
657 	job->num_ibs = 1;
658 
659 	ret = amdgpu_ib_schedule(ring, 1, ib, job, &f);
660 
661 	if (ret) {
662 		DRM_ERROR("amdgpu: failed to schedule IB.\n");
663 		goto err_ib_sched;
664 	}
665 
666 	/* Drop the initial kref_init count (see drm_sched_main as example) */
667 	dma_fence_put(f);
668 	ret = dma_fence_wait(f, false);
669 
670 err_ib_sched:
671 	amdgpu_job_free(job);
672 err:
673 	return ret;
674 }
675 
amdgpu_amdkfd_set_compute_idle(struct amdgpu_device * adev,bool idle)676 void amdgpu_amdkfd_set_compute_idle(struct amdgpu_device *adev, bool idle)
677 {
678 	enum amd_powergating_state state = idle ? AMD_PG_STATE_GATE : AMD_PG_STATE_UNGATE;
679 	if ((IP_VERSION_MAJ(amdgpu_ip_version(adev, GC_HWIP, 0)) == 11 &&
680 	    ((adev->mes.kiq_version & AMDGPU_MES_VERSION_MASK) <= 64)) ||
681 		(IP_VERSION_MAJ(amdgpu_ip_version(adev, GC_HWIP, 0)) == 12)) {
682 		pr_debug("GFXOFF is %s\n", idle ? "enabled" : "disabled");
683 		amdgpu_gfx_off_ctrl(adev, idle);
684 	} else if ((IP_VERSION_MAJ(amdgpu_ip_version(adev, GC_HWIP, 0)) == 9) &&
685 		(adev->flags & AMD_IS_APU)) {
686 		/* Disable GFXOFF and PG. Temporary workaround
687 		 * to fix some compute applications issue on GFX9.
688 		 */
689 		struct amdgpu_ip_block *gfx_block = amdgpu_device_ip_get_ip_block(adev, AMD_IP_BLOCK_TYPE_GFX);
690 		if (gfx_block != NULL)
691 			gfx_block->version->funcs->set_powergating_state((void *)gfx_block, state);
692 	}
693 	amdgpu_dpm_switch_power_profile(adev,
694 					PP_SMC_POWER_PROFILE_COMPUTE,
695 					!idle);
696 }
697 
amdgpu_amdkfd_is_kfd_vmid(struct amdgpu_device * adev,u32 vmid)698 bool amdgpu_amdkfd_is_kfd_vmid(struct amdgpu_device *adev, u32 vmid)
699 {
700 	if (adev->kfd.dev)
701 		return vmid >= adev->vm_manager.first_kfd_vmid;
702 
703 	return false;
704 }
705 
amdgpu_amdkfd_have_atomics_support(struct amdgpu_device * adev)706 bool amdgpu_amdkfd_have_atomics_support(struct amdgpu_device *adev)
707 {
708 	return adev->have_atomics_support;
709 }
710 
amdgpu_amdkfd_debug_mem_fence(struct amdgpu_device * adev)711 void amdgpu_amdkfd_debug_mem_fence(struct amdgpu_device *adev)
712 {
713 	amdgpu_device_flush_hdp(adev, NULL);
714 }
715 
amdgpu_amdkfd_is_fed(struct amdgpu_device * adev)716 bool amdgpu_amdkfd_is_fed(struct amdgpu_device *adev)
717 {
718 	return amdgpu_ras_get_fed_status(adev);
719 }
720 
amdgpu_amdkfd_ras_pasid_poison_consumption_handler(struct amdgpu_device * adev,enum amdgpu_ras_block block,uint16_t pasid,pasid_notify pasid_fn,void * data,uint32_t reset)721 void amdgpu_amdkfd_ras_pasid_poison_consumption_handler(struct amdgpu_device *adev,
722 				enum amdgpu_ras_block block, uint16_t pasid,
723 				pasid_notify pasid_fn, void *data, uint32_t reset)
724 {
725 	amdgpu_umc_pasid_poison_handler(adev, block, pasid, pasid_fn, data, reset);
726 }
727 
amdgpu_amdkfd_ras_poison_consumption_handler(struct amdgpu_device * adev,enum amdgpu_ras_block block,uint32_t reset)728 void amdgpu_amdkfd_ras_poison_consumption_handler(struct amdgpu_device *adev,
729 	enum amdgpu_ras_block block, uint32_t reset)
730 {
731 	amdgpu_umc_pasid_poison_handler(adev, block, 0, NULL, NULL, reset);
732 }
733 
amdgpu_amdkfd_send_close_event_drain_irq(struct amdgpu_device * adev,uint32_t * payload)734 int amdgpu_amdkfd_send_close_event_drain_irq(struct amdgpu_device *adev,
735 					uint32_t *payload)
736 {
737 	int ret;
738 
739 	/* Device or IH ring is not ready so bail. */
740 	ret = amdgpu_ih_wait_on_checkpoint_process_ts(adev, &adev->irq.ih);
741 	if (ret)
742 		return ret;
743 
744 	/* Send payload to fence KFD interrupts */
745 	amdgpu_amdkfd_interrupt(adev, payload);
746 
747 	return 0;
748 }
749 
amdgpu_amdkfd_check_and_lock_kfd(struct amdgpu_device * adev)750 int amdgpu_amdkfd_check_and_lock_kfd(struct amdgpu_device *adev)
751 {
752 	return kgd2kfd_check_and_lock_kfd();
753 }
754 
amdgpu_amdkfd_unlock_kfd(struct amdgpu_device * adev)755 void amdgpu_amdkfd_unlock_kfd(struct amdgpu_device *adev)
756 {
757 	kgd2kfd_unlock_kfd();
758 }
759 
760 
amdgpu_amdkfd_xcp_memory_size(struct amdgpu_device * adev,int xcp_id)761 u64 amdgpu_amdkfd_xcp_memory_size(struct amdgpu_device *adev, int xcp_id)
762 {
763 	s8 mem_id = KFD_XCP_MEM_ID(adev, xcp_id);
764 	u64 tmp;
765 
766 	if (adev->gmc.num_mem_partitions && xcp_id >= 0 && mem_id >= 0) {
767 		if (adev->gmc.is_app_apu && adev->gmc.num_mem_partitions == 1) {
768 			/* In NPS1 mode, we should restrict the vram reporting
769 			 * tied to the ttm_pages_limit which is 1/2 of the system
770 			 * memory. For other partition modes, the HBM is uniformly
771 			 * divided already per numa node reported. If user wants to
772 			 * go beyond the default ttm limit and maximize the ROCm
773 			 * allocations, they can go up to max ttm and sysmem limits.
774 			 */
775 
776 			tmp = (ttm_tt_pages_limit() << PAGE_SHIFT) / num_online_nodes();
777 		} else {
778 			tmp = adev->gmc.mem_partitions[mem_id].size;
779 		}
780 		do_div(tmp, adev->xcp_mgr->num_xcp_per_mem_partition);
781 		return ALIGN_DOWN(tmp, PAGE_SIZE);
782 	} else if (adev->apu_prefer_gtt) {
783 		return (ttm_tt_pages_limit() << PAGE_SHIFT);
784 	} else {
785 		return adev->gmc.real_vram_size;
786 	}
787 }
788 
amdgpu_amdkfd_unmap_hiq(struct amdgpu_device * adev,u32 doorbell_off,u32 inst)789 int amdgpu_amdkfd_unmap_hiq(struct amdgpu_device *adev, u32 doorbell_off,
790 			    u32 inst)
791 {
792 	struct amdgpu_kiq *kiq = &adev->gfx.kiq[inst];
793 	struct amdgpu_ring *kiq_ring = &kiq->ring;
794 	struct amdgpu_ring_funcs *ring_funcs;
795 	struct amdgpu_ring *ring;
796 	int r = 0;
797 
798 	if (!kiq->pmf || !kiq->pmf->kiq_unmap_queues)
799 		return -EINVAL;
800 
801 	if (!kiq_ring->sched.ready || amdgpu_in_reset(adev))
802 		return 0;
803 
804 	ring_funcs = kzalloc(sizeof(*ring_funcs), GFP_KERNEL);
805 	if (!ring_funcs)
806 		return -ENOMEM;
807 
808 	ring = kzalloc(sizeof(*ring), GFP_KERNEL);
809 	if (!ring) {
810 		r = -ENOMEM;
811 		goto free_ring_funcs;
812 	}
813 
814 	ring_funcs->type = AMDGPU_RING_TYPE_COMPUTE;
815 	ring->doorbell_index = doorbell_off;
816 	ring->funcs = ring_funcs;
817 
818 	spin_lock(&kiq->ring_lock);
819 
820 	if (amdgpu_ring_alloc(kiq_ring, kiq->pmf->unmap_queues_size)) {
821 		spin_unlock(&kiq->ring_lock);
822 		r = -ENOMEM;
823 		goto free_ring;
824 	}
825 
826 	kiq->pmf->kiq_unmap_queues(kiq_ring, ring, RESET_QUEUES, 0, 0);
827 
828 	/* Submit unmap queue packet */
829 	amdgpu_ring_commit(kiq_ring);
830 	/*
831 	 * Ring test will do a basic scratch register change check. Just run
832 	 * this to ensure that unmap queues that is submitted before got
833 	 * processed successfully before returning.
834 	 */
835 	r = amdgpu_ring_test_helper(kiq_ring);
836 
837 	spin_unlock(&kiq->ring_lock);
838 
839 free_ring:
840 	kfree(ring);
841 
842 free_ring_funcs:
843 	kfree(ring_funcs);
844 
845 	return r;
846 }
847 
848 /* Stop scheduling on KFD */
amdgpu_amdkfd_stop_sched(struct amdgpu_device * adev,uint32_t node_id)849 int amdgpu_amdkfd_stop_sched(struct amdgpu_device *adev, uint32_t node_id)
850 {
851 	if (!adev->kfd.init_complete)
852 		return 0;
853 
854 	return kgd2kfd_stop_sched(adev->kfd.dev, node_id);
855 }
856 
857 /* Start scheduling on KFD */
amdgpu_amdkfd_start_sched(struct amdgpu_device * adev,uint32_t node_id)858 int amdgpu_amdkfd_start_sched(struct amdgpu_device *adev, uint32_t node_id)
859 {
860 	if (!adev->kfd.init_complete)
861 		return 0;
862 
863 	return kgd2kfd_start_sched(adev->kfd.dev, node_id);
864 }
865 
866 /* check if there are KFD queues active */
amdgpu_amdkfd_compute_active(struct amdgpu_device * adev,uint32_t node_id)867 bool amdgpu_amdkfd_compute_active(struct amdgpu_device *adev, uint32_t node_id)
868 {
869 	if (!adev->kfd.init_complete)
870 		return false;
871 
872 	return kgd2kfd_compute_active(adev->kfd.dev, node_id);
873 }
874 
875 /* Config CGTT_SQ_CLK_CTRL */
amdgpu_amdkfd_config_sq_perfmon(struct amdgpu_device * adev,uint32_t xcp_id,bool core_override_enable,bool reg_override_enable,bool perfmon_override_enable)876 int amdgpu_amdkfd_config_sq_perfmon(struct amdgpu_device *adev, uint32_t xcp_id,
877 	bool core_override_enable, bool reg_override_enable, bool perfmon_override_enable)
878 {
879 	int r;
880 
881 	if (!adev->kfd.init_complete)
882 		return 0;
883 
884 	r = psp_config_sq_perfmon(&adev->psp, xcp_id, core_override_enable,
885 					reg_override_enable, perfmon_override_enable);
886 
887 	return r;
888 }
889