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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#include <drm/drmP.h>
26#include "amdgpu.h"
27#include "amdgpu_gfx.h"
28#include <linux/module.h>
29
30const struct kgd2kfd_calls *kgd2kfd;
31bool (*kgd2kfd_init_p)(unsigned int, const struct kgd2kfd_calls**);
32
33static const unsigned int compute_vmid_bitmap = 0xFF00;
34
35int amdgpu_amdkfd_init(void)
36{
37 int ret;
38
39#if defined(CONFIG_HSA_AMD_MODULE)
40 int (*kgd2kfd_init_p)(unsigned int, const struct kgd2kfd_calls**);
41
42 kgd2kfd_init_p = symbol_request(kgd2kfd_init);
43
44 if (kgd2kfd_init_p == NULL)
45 return -ENOENT;
46
47 ret = kgd2kfd_init_p(KFD_INTERFACE_VERSION, &kgd2kfd);
48 if (ret) {
49 symbol_put(kgd2kfd_init);
50 kgd2kfd = NULL;
51 }
52
53#elif defined(CONFIG_HSA_AMD)
54 ret = kgd2kfd_init(KFD_INTERFACE_VERSION, &kgd2kfd);
55 if (ret)
56 kgd2kfd = NULL;
57
58#else
59 ret = -ENOENT;
60#endif
61 amdgpu_amdkfd_gpuvm_init_mem_limits();
62
63 return ret;
64}
65
66void amdgpu_amdkfd_fini(void)
67{
68 if (kgd2kfd) {
69 kgd2kfd->exit();
70 symbol_put(kgd2kfd_init);
71 }
72}
73
74void amdgpu_amdkfd_device_probe(struct amdgpu_device *adev)
75{
76 const struct kfd2kgd_calls *kfd2kgd;
77
78 if (!kgd2kfd)
79 return;
80
81 switch (adev->asic_type) {
82#ifdef CONFIG_DRM_AMDGPU_CIK
83 case CHIP_KAVERI:
84 case CHIP_HAWAII:
85 kfd2kgd = amdgpu_amdkfd_gfx_7_get_functions();
86 break;
87#endif
88 case CHIP_CARRIZO:
89 case CHIP_TONGA:
90 case CHIP_FIJI:
91 case CHIP_POLARIS10:
92 case CHIP_POLARIS11:
93 kfd2kgd = amdgpu_amdkfd_gfx_8_0_get_functions();
94 break;
95 default:
96 dev_dbg(adev->dev, "kfd not supported on this ASIC\n");
97 return;
98 }
99
100 adev->kfd = kgd2kfd->probe((struct kgd_dev *)adev,
101 adev->pdev, kfd2kgd);
102}
103
104/**
105 * amdgpu_doorbell_get_kfd_info - Report doorbell configuration required to
106 * setup amdkfd
107 *
108 * @adev: amdgpu_device pointer
109 * @aperture_base: output returning doorbell aperture base physical address
110 * @aperture_size: output returning doorbell aperture size in bytes
111 * @start_offset: output returning # of doorbell bytes reserved for amdgpu.
112 *
113 * amdgpu and amdkfd share the doorbell aperture. amdgpu sets it up,
114 * takes doorbells required for its own rings and reports the setup to amdkfd.
115 * amdgpu reserved doorbells are at the start of the doorbell aperture.
116 */
117static void amdgpu_doorbell_get_kfd_info(struct amdgpu_device *adev,
118 phys_addr_t *aperture_base,
119 size_t *aperture_size,
120 size_t *start_offset)
121{
122 /*
123 * The first num_doorbells are used by amdgpu.
124 * amdkfd takes whatever's left in the aperture.
125 */
126 if (adev->doorbell.size > adev->doorbell.num_doorbells * sizeof(u32)) {
127 *aperture_base = adev->doorbell.base;
128 *aperture_size = adev->doorbell.size;
129 *start_offset = adev->doorbell.num_doorbells * sizeof(u32);
130 } else {
131 *aperture_base = 0;
132 *aperture_size = 0;
133 *start_offset = 0;
134 }
135}
136
137void amdgpu_amdkfd_device_init(struct amdgpu_device *adev)
138{
139 int i;
140 int last_valid_bit;
141 if (adev->kfd) {
142 struct kgd2kfd_shared_resources gpu_resources = {
143 .compute_vmid_bitmap = compute_vmid_bitmap,
144 .num_pipe_per_mec = adev->gfx.mec.num_pipe_per_mec,
145 .num_queue_per_pipe = adev->gfx.mec.num_queue_per_pipe,
146 .gpuvm_size = min(adev->vm_manager.max_pfn
147 << AMDGPU_GPU_PAGE_SHIFT,
148 AMDGPU_VA_HOLE_START),
149 .drm_render_minor = adev->ddev->render->index
150 };
151
152 /* this is going to have a few of the MSBs set that we need to
153 * clear */
154 bitmap_complement(gpu_resources.queue_bitmap,
155 adev->gfx.mec.queue_bitmap,
156 KGD_MAX_QUEUES);
157
158 /* remove the KIQ bit as well */
159 if (adev->gfx.kiq.ring.ready)
160 clear_bit(amdgpu_gfx_queue_to_bit(adev,
161 adev->gfx.kiq.ring.me - 1,
162 adev->gfx.kiq.ring.pipe,
163 adev->gfx.kiq.ring.queue),
164 gpu_resources.queue_bitmap);
165
166 /* According to linux/bitmap.h we shouldn't use bitmap_clear if
167 * nbits is not compile time constant */
168 last_valid_bit = 1 /* only first MEC can have compute queues */
169 * adev->gfx.mec.num_pipe_per_mec
170 * adev->gfx.mec.num_queue_per_pipe;
171 for (i = last_valid_bit; i < KGD_MAX_QUEUES; ++i)
172 clear_bit(i, gpu_resources.queue_bitmap);
173
174 amdgpu_doorbell_get_kfd_info(adev,
175 &gpu_resources.doorbell_physical_address,
176 &gpu_resources.doorbell_aperture_size,
177 &gpu_resources.doorbell_start_offset);
178
179 kgd2kfd->device_init(adev->kfd, &gpu_resources);
180 }
181}
182
183void amdgpu_amdkfd_device_fini(struct amdgpu_device *adev)
184{
185 if (adev->kfd) {
186 kgd2kfd->device_exit(adev->kfd);
187 adev->kfd = NULL;
188 }
189}
190
191void amdgpu_amdkfd_interrupt(struct amdgpu_device *adev,
192 const void *ih_ring_entry)
193{
194 if (adev->kfd)
195 kgd2kfd->interrupt(adev->kfd, ih_ring_entry);
196}
197
198void amdgpu_amdkfd_suspend(struct amdgpu_device *adev)
199{
200 if (adev->kfd)
201 kgd2kfd->suspend(adev->kfd);
202}
203
204int amdgpu_amdkfd_resume(struct amdgpu_device *adev)
205{
206 int r = 0;
207
208 if (adev->kfd)
209 r = kgd2kfd->resume(adev->kfd);
210
211 return r;
212}
213
214int alloc_gtt_mem(struct kgd_dev *kgd, size_t size,
215 void **mem_obj, uint64_t *gpu_addr,
216 void **cpu_ptr)
217{
218 struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
219 struct amdgpu_bo *bo = NULL;
220 int r;
221 uint64_t gpu_addr_tmp = 0;
222 void *cpu_ptr_tmp = NULL;
223
224 r = amdgpu_bo_create(adev, size, PAGE_SIZE, AMDGPU_GEM_DOMAIN_GTT,
225 AMDGPU_GEM_CREATE_CPU_GTT_USWC, ttm_bo_type_kernel,
226 NULL, &bo);
227 if (r) {
228 dev_err(adev->dev,
229 "failed to allocate BO for amdkfd (%d)\n", r);
230 return r;
231 }
232
233 /* map the buffer */
234 r = amdgpu_bo_reserve(bo, true);
235 if (r) {
236 dev_err(adev->dev, "(%d) failed to reserve bo for amdkfd\n", r);
237 goto allocate_mem_reserve_bo_failed;
238 }
239
240 r = amdgpu_bo_pin(bo, AMDGPU_GEM_DOMAIN_GTT,
241 &gpu_addr_tmp);
242 if (r) {
243 dev_err(adev->dev, "(%d) failed to pin bo for amdkfd\n", r);
244 goto allocate_mem_pin_bo_failed;
245 }
246
247 r = amdgpu_bo_kmap(bo, &cpu_ptr_tmp);
248 if (r) {
249 dev_err(adev->dev,
250 "(%d) failed to map bo to kernel for amdkfd\n", r);
251 goto allocate_mem_kmap_bo_failed;
252 }
253
254 *mem_obj = bo;
255 *gpu_addr = gpu_addr_tmp;
256 *cpu_ptr = cpu_ptr_tmp;
257
258 amdgpu_bo_unreserve(bo);
259
260 return 0;
261
262allocate_mem_kmap_bo_failed:
263 amdgpu_bo_unpin(bo);
264allocate_mem_pin_bo_failed:
265 amdgpu_bo_unreserve(bo);
266allocate_mem_reserve_bo_failed:
267 amdgpu_bo_unref(&bo);
268
269 return r;
270}
271
272void free_gtt_mem(struct kgd_dev *kgd, void *mem_obj)
273{
274 struct amdgpu_bo *bo = (struct amdgpu_bo *) mem_obj;
275
276 amdgpu_bo_reserve(bo, true);
277 amdgpu_bo_kunmap(bo);
278 amdgpu_bo_unpin(bo);
279 amdgpu_bo_unreserve(bo);
280 amdgpu_bo_unref(&(bo));
281}
282
283void get_local_mem_info(struct kgd_dev *kgd,
284 struct kfd_local_mem_info *mem_info)
285{
286 struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
287 uint64_t address_mask = adev->dev->dma_mask ? ~*adev->dev->dma_mask :
288 ~((1ULL << 32) - 1);
289 resource_size_t aper_limit = adev->gmc.aper_base + adev->gmc.aper_size;
290
291 memset(mem_info, 0, sizeof(*mem_info));
292 if (!(adev->gmc.aper_base & address_mask || aper_limit & address_mask)) {
293 mem_info->local_mem_size_public = adev->gmc.visible_vram_size;
294 mem_info->local_mem_size_private = adev->gmc.real_vram_size -
295 adev->gmc.visible_vram_size;
296 } else {
297 mem_info->local_mem_size_public = 0;
298 mem_info->local_mem_size_private = adev->gmc.real_vram_size;
299 }
300 mem_info->vram_width = adev->gmc.vram_width;
301
302 pr_debug("Address base: %pap limit %pap public 0x%llx private 0x%llx\n",
303 &adev->gmc.aper_base, &aper_limit,
304 mem_info->local_mem_size_public,
305 mem_info->local_mem_size_private);
306
307 if (amdgpu_emu_mode == 1) {
308 mem_info->mem_clk_max = 100;
309 return;
310 }
311
312 if (amdgpu_sriov_vf(adev))
313 mem_info->mem_clk_max = adev->clock.default_mclk / 100;
314 else
315 mem_info->mem_clk_max = amdgpu_dpm_get_mclk(adev, false) / 100;
316}
317
318uint64_t get_gpu_clock_counter(struct kgd_dev *kgd)
319{
320 struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
321
322 if (adev->gfx.funcs->get_gpu_clock_counter)
323 return adev->gfx.funcs->get_gpu_clock_counter(adev);
324 return 0;
325}
326
327uint32_t get_max_engine_clock_in_mhz(struct kgd_dev *kgd)
328{
329 struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
330
331 /* the sclk is in quantas of 10kHz */
332 if (amdgpu_emu_mode == 1)
333 return 100;
334
335 if (amdgpu_sriov_vf(adev))
336 return adev->clock.default_sclk / 100;
337
338 return amdgpu_dpm_get_sclk(adev, false) / 100;
339}
340
341void get_cu_info(struct kgd_dev *kgd, struct kfd_cu_info *cu_info)
342{
343 struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
344 struct amdgpu_cu_info acu_info = adev->gfx.cu_info;
345
346 memset(cu_info, 0, sizeof(*cu_info));
347 if (sizeof(cu_info->cu_bitmap) != sizeof(acu_info.bitmap))
348 return;
349
350 cu_info->cu_active_number = acu_info.number;
351 cu_info->cu_ao_mask = acu_info.ao_cu_mask;
352 memcpy(&cu_info->cu_bitmap[0], &acu_info.bitmap[0],
353 sizeof(acu_info.bitmap));
354 cu_info->num_shader_engines = adev->gfx.config.max_shader_engines;
355 cu_info->num_shader_arrays_per_engine = adev->gfx.config.max_sh_per_se;
356 cu_info->num_cu_per_sh = adev->gfx.config.max_cu_per_sh;
357 cu_info->simd_per_cu = acu_info.simd_per_cu;
358 cu_info->max_waves_per_simd = acu_info.max_waves_per_simd;
359 cu_info->wave_front_size = acu_info.wave_front_size;
360 cu_info->max_scratch_slots_per_cu = acu_info.max_scratch_slots_per_cu;
361 cu_info->lds_size = acu_info.lds_size;
362}
363
364uint64_t amdgpu_amdkfd_get_vram_usage(struct kgd_dev *kgd)
365{
366 struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
367
368 return amdgpu_vram_mgr_usage(&adev->mman.bdev.man[TTM_PL_VRAM]);
369}
370
371int amdgpu_amdkfd_submit_ib(struct kgd_dev *kgd, enum kgd_engine_type engine,
372 uint32_t vmid, uint64_t gpu_addr,
373 uint32_t *ib_cmd, uint32_t ib_len)
374{
375 struct amdgpu_device *adev = (struct amdgpu_device *)kgd;
376 struct amdgpu_job *job;
377 struct amdgpu_ib *ib;
378 struct amdgpu_ring *ring;
379 struct dma_fence *f = NULL;
380 int ret;
381
382 switch (engine) {
383 case KGD_ENGINE_MEC1:
384 ring = &adev->gfx.compute_ring[0];
385 break;
386 case KGD_ENGINE_SDMA1:
387 ring = &adev->sdma.instance[0].ring;
388 break;
389 case KGD_ENGINE_SDMA2:
390 ring = &adev->sdma.instance[1].ring;
391 break;
392 default:
393 pr_err("Invalid engine in IB submission: %d\n", engine);
394 ret = -EINVAL;
395 goto err;
396 }
397
398 ret = amdgpu_job_alloc(adev, 1, &job, NULL);
399 if (ret)
400 goto err;
401
402 ib = &job->ibs[0];
403 memset(ib, 0, sizeof(struct amdgpu_ib));
404
405 ib->gpu_addr = gpu_addr;
406 ib->ptr = ib_cmd;
407 ib->length_dw = ib_len;
408 /* This works for NO_HWS. TODO: need to handle without knowing VMID */
409 job->vmid = vmid;
410
411 ret = amdgpu_ib_schedule(ring, 1, ib, job, &f);
412 if (ret) {
413 DRM_ERROR("amdgpu: failed to schedule IB.\n");
414 goto err_ib_sched;
415 }
416
417 ret = dma_fence_wait(f, false);
418
419err_ib_sched:
420 dma_fence_put(f);
421 amdgpu_job_free(job);
422err:
423 return ret;
424}
425
426bool amdgpu_amdkfd_is_kfd_vmid(struct amdgpu_device *adev, u32 vmid)
427{
428 if (adev->kfd) {
429 if ((1 << vmid) & compute_vmid_bitmap)
430 return true;
431 }
432
433 return false;
434}
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 <linux/module.h>
32#include <linux/dma-buf.h>
33#include "amdgpu_xgmi.h"
34#include <uapi/linux/kfd_ioctl.h>
35#include "amdgpu_ras.h"
36#include "amdgpu_umc.h"
37#include "amdgpu_reset.h"
38
39/* Total memory size in system memory and all GPU VRAM. Used to
40 * estimate worst case amount of memory to reserve for page tables
41 */
42uint64_t amdgpu_amdkfd_total_mem_size;
43
44static bool kfd_initialized;
45
46int amdgpu_amdkfd_init(void)
47{
48 struct sysinfo si;
49 int ret;
50
51 si_meminfo(&si);
52 amdgpu_amdkfd_total_mem_size = si.freeram - si.freehigh;
53 amdgpu_amdkfd_total_mem_size *= si.mem_unit;
54
55 ret = kgd2kfd_init();
56 amdgpu_amdkfd_gpuvm_init_mem_limits();
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_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_doorbells *
113 sizeof(u32)) {
114 *aperture_base = adev->doorbell.base;
115 *aperture_size = adev->doorbell.size;
116 *start_offset = adev->doorbell.num_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
141void amdgpu_amdkfd_device_init(struct amdgpu_device *adev)
142{
143 int i;
144 int last_valid_bit;
145
146 if (adev->kfd.dev) {
147 struct kgd2kfd_shared_resources gpu_resources = {
148 .compute_vmid_bitmap =
149 ((1 << AMDGPU_NUM_VMID) - 1) -
150 ((1 << adev->vm_manager.first_kfd_vmid) - 1),
151 .num_pipe_per_mec = adev->gfx.mec.num_pipe_per_mec,
152 .num_queue_per_pipe = adev->gfx.mec.num_queue_per_pipe,
153 .gpuvm_size = min(adev->vm_manager.max_pfn
154 << AMDGPU_GPU_PAGE_SHIFT,
155 AMDGPU_GMC_HOLE_START),
156 .drm_render_minor = adev_to_drm(adev)->render->index,
157 .sdma_doorbell_idx = adev->doorbell_index.sdma_engine,
158 .enable_mes = adev->enable_mes,
159 };
160
161 /* this is going to have a few of the MSBs set that we need to
162 * clear
163 */
164 bitmap_complement(gpu_resources.cp_queue_bitmap,
165 adev->gfx.mec.queue_bitmap,
166 KGD_MAX_QUEUES);
167
168 /* According to linux/bitmap.h we shouldn't use bitmap_clear if
169 * nbits is not compile time constant
170 */
171 last_valid_bit = 1 /* only first MEC can have compute queues */
172 * adev->gfx.mec.num_pipe_per_mec
173 * adev->gfx.mec.num_queue_per_pipe;
174 for (i = last_valid_bit; i < KGD_MAX_QUEUES; ++i)
175 clear_bit(i, gpu_resources.cp_queue_bitmap);
176
177 amdgpu_doorbell_get_kfd_info(adev,
178 &gpu_resources.doorbell_physical_address,
179 &gpu_resources.doorbell_aperture_size,
180 &gpu_resources.doorbell_start_offset);
181
182 /* Since SOC15, BIF starts to statically use the
183 * lower 12 bits of doorbell addresses for routing
184 * based on settings in registers like
185 * SDMA0_DOORBELL_RANGE etc..
186 * In order to route a doorbell to CP engine, the lower
187 * 12 bits of its address has to be outside the range
188 * set for SDMA, VCN, and IH blocks.
189 */
190 if (adev->asic_type >= CHIP_VEGA10) {
191 gpu_resources.non_cp_doorbells_start =
192 adev->doorbell_index.first_non_cp;
193 gpu_resources.non_cp_doorbells_end =
194 adev->doorbell_index.last_non_cp;
195 }
196
197 adev->kfd.init_complete = kgd2kfd_device_init(adev->kfd.dev,
198 &gpu_resources);
199
200 amdgpu_amdkfd_total_mem_size += adev->gmc.real_vram_size;
201
202 INIT_WORK(&adev->kfd.reset_work, amdgpu_amdkfd_reset_work);
203 }
204}
205
206void amdgpu_amdkfd_device_fini_sw(struct amdgpu_device *adev)
207{
208 if (adev->kfd.dev) {
209 kgd2kfd_device_exit(adev->kfd.dev);
210 adev->kfd.dev = NULL;
211 amdgpu_amdkfd_total_mem_size -= adev->gmc.real_vram_size;
212 }
213}
214
215void amdgpu_amdkfd_interrupt(struct amdgpu_device *adev,
216 const void *ih_ring_entry)
217{
218 if (adev->kfd.dev)
219 kgd2kfd_interrupt(adev->kfd.dev, ih_ring_entry);
220}
221
222void amdgpu_amdkfd_suspend(struct amdgpu_device *adev, bool run_pm)
223{
224 if (adev->kfd.dev)
225 kgd2kfd_suspend(adev->kfd.dev, run_pm);
226}
227
228int amdgpu_amdkfd_resume_iommu(struct amdgpu_device *adev)
229{
230 int r = 0;
231
232 if (adev->kfd.dev)
233 r = kgd2kfd_resume_iommu(adev->kfd.dev);
234
235 return r;
236}
237
238int amdgpu_amdkfd_resume(struct amdgpu_device *adev, bool run_pm)
239{
240 int r = 0;
241
242 if (adev->kfd.dev)
243 r = kgd2kfd_resume(adev->kfd.dev, run_pm);
244
245 return r;
246}
247
248int amdgpu_amdkfd_pre_reset(struct amdgpu_device *adev)
249{
250 int r = 0;
251
252 if (adev->kfd.dev)
253 r = kgd2kfd_pre_reset(adev->kfd.dev);
254
255 return r;
256}
257
258int amdgpu_amdkfd_post_reset(struct amdgpu_device *adev)
259{
260 int r = 0;
261
262 if (adev->kfd.dev)
263 r = kgd2kfd_post_reset(adev->kfd.dev);
264
265 return r;
266}
267
268void amdgpu_amdkfd_gpu_reset(struct amdgpu_device *adev)
269{
270 if (amdgpu_device_should_recover_gpu(adev))
271 amdgpu_reset_domain_schedule(adev->reset_domain,
272 &adev->kfd.reset_work);
273}
274
275int amdgpu_amdkfd_alloc_gtt_mem(struct amdgpu_device *adev, size_t size,
276 void **mem_obj, uint64_t *gpu_addr,
277 void **cpu_ptr, bool cp_mqd_gfx9)
278{
279 struct amdgpu_bo *bo = NULL;
280 struct amdgpu_bo_param bp;
281 int r;
282 void *cpu_ptr_tmp = NULL;
283
284 memset(&bp, 0, sizeof(bp));
285 bp.size = size;
286 bp.byte_align = PAGE_SIZE;
287 bp.domain = AMDGPU_GEM_DOMAIN_GTT;
288 bp.flags = AMDGPU_GEM_CREATE_CPU_GTT_USWC;
289 bp.type = ttm_bo_type_kernel;
290 bp.resv = NULL;
291 bp.bo_ptr_size = sizeof(struct amdgpu_bo);
292
293 if (cp_mqd_gfx9)
294 bp.flags |= AMDGPU_GEM_CREATE_CP_MQD_GFX9;
295
296 r = amdgpu_bo_create(adev, &bp, &bo);
297 if (r) {
298 dev_err(adev->dev,
299 "failed to allocate BO for amdkfd (%d)\n", r);
300 return r;
301 }
302
303 /* map the buffer */
304 r = amdgpu_bo_reserve(bo, true);
305 if (r) {
306 dev_err(adev->dev, "(%d) failed to reserve bo for amdkfd\n", r);
307 goto allocate_mem_reserve_bo_failed;
308 }
309
310 r = amdgpu_bo_pin(bo, AMDGPU_GEM_DOMAIN_GTT);
311 if (r) {
312 dev_err(adev->dev, "(%d) failed to pin bo for amdkfd\n", r);
313 goto allocate_mem_pin_bo_failed;
314 }
315
316 r = amdgpu_ttm_alloc_gart(&bo->tbo);
317 if (r) {
318 dev_err(adev->dev, "%p bind failed\n", bo);
319 goto allocate_mem_kmap_bo_failed;
320 }
321
322 r = amdgpu_bo_kmap(bo, &cpu_ptr_tmp);
323 if (r) {
324 dev_err(adev->dev,
325 "(%d) failed to map bo to kernel for amdkfd\n", r);
326 goto allocate_mem_kmap_bo_failed;
327 }
328
329 *mem_obj = bo;
330 *gpu_addr = amdgpu_bo_gpu_offset(bo);
331 *cpu_ptr = cpu_ptr_tmp;
332
333 amdgpu_bo_unreserve(bo);
334
335 return 0;
336
337allocate_mem_kmap_bo_failed:
338 amdgpu_bo_unpin(bo);
339allocate_mem_pin_bo_failed:
340 amdgpu_bo_unreserve(bo);
341allocate_mem_reserve_bo_failed:
342 amdgpu_bo_unref(&bo);
343
344 return r;
345}
346
347void amdgpu_amdkfd_free_gtt_mem(struct amdgpu_device *adev, void *mem_obj)
348{
349 struct amdgpu_bo *bo = (struct amdgpu_bo *) mem_obj;
350
351 amdgpu_bo_reserve(bo, true);
352 amdgpu_bo_kunmap(bo);
353 amdgpu_bo_unpin(bo);
354 amdgpu_bo_unreserve(bo);
355 amdgpu_bo_unref(&(bo));
356}
357
358int amdgpu_amdkfd_alloc_gws(struct amdgpu_device *adev, size_t size,
359 void **mem_obj)
360{
361 struct amdgpu_bo *bo = NULL;
362 struct amdgpu_bo_user *ubo;
363 struct amdgpu_bo_param bp;
364 int r;
365
366 memset(&bp, 0, sizeof(bp));
367 bp.size = size;
368 bp.byte_align = 1;
369 bp.domain = AMDGPU_GEM_DOMAIN_GWS;
370 bp.flags = AMDGPU_GEM_CREATE_NO_CPU_ACCESS;
371 bp.type = ttm_bo_type_device;
372 bp.resv = NULL;
373 bp.bo_ptr_size = sizeof(struct amdgpu_bo);
374
375 r = amdgpu_bo_create_user(adev, &bp, &ubo);
376 if (r) {
377 dev_err(adev->dev,
378 "failed to allocate gws BO for amdkfd (%d)\n", r);
379 return r;
380 }
381
382 bo = &ubo->bo;
383 *mem_obj = bo;
384 return 0;
385}
386
387void amdgpu_amdkfd_free_gws(struct amdgpu_device *adev, void *mem_obj)
388{
389 struct amdgpu_bo *bo = (struct amdgpu_bo *)mem_obj;
390
391 amdgpu_bo_unref(&bo);
392}
393
394uint32_t amdgpu_amdkfd_get_fw_version(struct amdgpu_device *adev,
395 enum kgd_engine_type type)
396{
397 switch (type) {
398 case KGD_ENGINE_PFP:
399 return adev->gfx.pfp_fw_version;
400
401 case KGD_ENGINE_ME:
402 return adev->gfx.me_fw_version;
403
404 case KGD_ENGINE_CE:
405 return adev->gfx.ce_fw_version;
406
407 case KGD_ENGINE_MEC1:
408 return adev->gfx.mec_fw_version;
409
410 case KGD_ENGINE_MEC2:
411 return adev->gfx.mec2_fw_version;
412
413 case KGD_ENGINE_RLC:
414 return adev->gfx.rlc_fw_version;
415
416 case KGD_ENGINE_SDMA1:
417 return adev->sdma.instance[0].fw_version;
418
419 case KGD_ENGINE_SDMA2:
420 return adev->sdma.instance[1].fw_version;
421
422 default:
423 return 0;
424 }
425
426 return 0;
427}
428
429void amdgpu_amdkfd_get_local_mem_info(struct amdgpu_device *adev,
430 struct kfd_local_mem_info *mem_info)
431{
432 memset(mem_info, 0, sizeof(*mem_info));
433
434 mem_info->local_mem_size_public = adev->gmc.visible_vram_size;
435 mem_info->local_mem_size_private = adev->gmc.real_vram_size -
436 adev->gmc.visible_vram_size;
437
438 mem_info->vram_width = adev->gmc.vram_width;
439
440 pr_debug("Address base: %pap public 0x%llx private 0x%llx\n",
441 &adev->gmc.aper_base,
442 mem_info->local_mem_size_public,
443 mem_info->local_mem_size_private);
444
445 if (amdgpu_sriov_vf(adev))
446 mem_info->mem_clk_max = adev->clock.default_mclk / 100;
447 else if (adev->pm.dpm_enabled) {
448 if (amdgpu_emu_mode == 1)
449 mem_info->mem_clk_max = 0;
450 else
451 mem_info->mem_clk_max = amdgpu_dpm_get_mclk(adev, false) / 100;
452 } else
453 mem_info->mem_clk_max = 100;
454}
455
456uint64_t amdgpu_amdkfd_get_gpu_clock_counter(struct amdgpu_device *adev)
457{
458 if (adev->gfx.funcs->get_gpu_clock_counter)
459 return adev->gfx.funcs->get_gpu_clock_counter(adev);
460 return 0;
461}
462
463uint32_t amdgpu_amdkfd_get_max_engine_clock_in_mhz(struct amdgpu_device *adev)
464{
465 /* the sclk is in quantas of 10kHz */
466 if (amdgpu_sriov_vf(adev))
467 return adev->clock.default_sclk / 100;
468 else if (adev->pm.dpm_enabled)
469 return amdgpu_dpm_get_sclk(adev, false) / 100;
470 else
471 return 100;
472}
473
474void amdgpu_amdkfd_get_cu_info(struct amdgpu_device *adev, struct kfd_cu_info *cu_info)
475{
476 struct amdgpu_cu_info acu_info = adev->gfx.cu_info;
477
478 memset(cu_info, 0, sizeof(*cu_info));
479 if (sizeof(cu_info->cu_bitmap) != sizeof(acu_info.bitmap))
480 return;
481
482 cu_info->cu_active_number = acu_info.number;
483 cu_info->cu_ao_mask = acu_info.ao_cu_mask;
484 memcpy(&cu_info->cu_bitmap[0], &acu_info.bitmap[0],
485 sizeof(acu_info.bitmap));
486 cu_info->num_shader_engines = adev->gfx.config.max_shader_engines;
487 cu_info->num_shader_arrays_per_engine = adev->gfx.config.max_sh_per_se;
488 cu_info->num_cu_per_sh = adev->gfx.config.max_cu_per_sh;
489 cu_info->simd_per_cu = acu_info.simd_per_cu;
490 cu_info->max_waves_per_simd = acu_info.max_waves_per_simd;
491 cu_info->wave_front_size = acu_info.wave_front_size;
492 cu_info->max_scratch_slots_per_cu = acu_info.max_scratch_slots_per_cu;
493 cu_info->lds_size = acu_info.lds_size;
494}
495
496int amdgpu_amdkfd_get_dmabuf_info(struct amdgpu_device *adev, int dma_buf_fd,
497 struct amdgpu_device **dmabuf_adev,
498 uint64_t *bo_size, void *metadata_buffer,
499 size_t buffer_size, uint32_t *metadata_size,
500 uint32_t *flags)
501{
502 struct dma_buf *dma_buf;
503 struct drm_gem_object *obj;
504 struct amdgpu_bo *bo;
505 uint64_t metadata_flags;
506 int r = -EINVAL;
507
508 dma_buf = dma_buf_get(dma_buf_fd);
509 if (IS_ERR(dma_buf))
510 return PTR_ERR(dma_buf);
511
512 if (dma_buf->ops != &amdgpu_dmabuf_ops)
513 /* Can't handle non-graphics buffers */
514 goto out_put;
515
516 obj = dma_buf->priv;
517 if (obj->dev->driver != adev_to_drm(adev)->driver)
518 /* Can't handle buffers from different drivers */
519 goto out_put;
520
521 adev = drm_to_adev(obj->dev);
522 bo = gem_to_amdgpu_bo(obj);
523 if (!(bo->preferred_domains & (AMDGPU_GEM_DOMAIN_VRAM |
524 AMDGPU_GEM_DOMAIN_GTT)))
525 /* Only VRAM and GTT BOs are supported */
526 goto out_put;
527
528 r = 0;
529 if (dmabuf_adev)
530 *dmabuf_adev = adev;
531 if (bo_size)
532 *bo_size = amdgpu_bo_size(bo);
533 if (metadata_buffer)
534 r = amdgpu_bo_get_metadata(bo, metadata_buffer, buffer_size,
535 metadata_size, &metadata_flags);
536 if (flags) {
537 *flags = (bo->preferred_domains & AMDGPU_GEM_DOMAIN_VRAM) ?
538 KFD_IOC_ALLOC_MEM_FLAGS_VRAM
539 : KFD_IOC_ALLOC_MEM_FLAGS_GTT;
540
541 if (bo->flags & AMDGPU_GEM_CREATE_CPU_ACCESS_REQUIRED)
542 *flags |= KFD_IOC_ALLOC_MEM_FLAGS_PUBLIC;
543 }
544
545out_put:
546 dma_buf_put(dma_buf);
547 return r;
548}
549
550uint8_t amdgpu_amdkfd_get_xgmi_hops_count(struct amdgpu_device *dst,
551 struct amdgpu_device *src)
552{
553 struct amdgpu_device *peer_adev = src;
554 struct amdgpu_device *adev = 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
566int amdgpu_amdkfd_get_xgmi_bandwidth_mbytes(struct amdgpu_device *dst,
567 struct amdgpu_device *src,
568 bool is_min)
569{
570 struct amdgpu_device *adev = dst, *peer_adev;
571 int num_links;
572
573 if (adev->asic_type != CHIP_ALDEBARAN)
574 return 0;
575
576 if (src)
577 peer_adev = src;
578
579 /* num links returns 0 for indirect peers since indirect route is unknown. */
580 num_links = is_min ? 1 : amdgpu_xgmi_get_num_links(adev, peer_adev);
581 if (num_links < 0) {
582 DRM_ERROR("amdgpu: failed to get xgmi num links between node %d and %d. ret = %d\n",
583 adev->gmc.xgmi.physical_node_id,
584 peer_adev->gmc.xgmi.physical_node_id, num_links);
585 num_links = 0;
586 }
587
588 /* Aldebaran xGMI DPM is defeatured so assume x16 x 25Gbps for bandwidth. */
589 return (num_links * 16 * 25000)/BITS_PER_BYTE;
590}
591
592int amdgpu_amdkfd_get_pcie_bandwidth_mbytes(struct amdgpu_device *adev, bool is_min)
593{
594 int num_lanes_shift = (is_min ? ffs(adev->pm.pcie_mlw_mask) :
595 fls(adev->pm.pcie_mlw_mask)) - 1;
596 int gen_speed_shift = (is_min ? ffs(adev->pm.pcie_gen_mask &
597 CAIL_PCIE_LINK_SPEED_SUPPORT_MASK) :
598 fls(adev->pm.pcie_gen_mask &
599 CAIL_PCIE_LINK_SPEED_SUPPORT_MASK)) - 1;
600 uint32_t num_lanes_mask = 1 << num_lanes_shift;
601 uint32_t gen_speed_mask = 1 << gen_speed_shift;
602 int num_lanes_factor = 0, gen_speed_mbits_factor = 0;
603
604 switch (num_lanes_mask) {
605 case CAIL_PCIE_LINK_WIDTH_SUPPORT_X1:
606 num_lanes_factor = 1;
607 break;
608 case CAIL_PCIE_LINK_WIDTH_SUPPORT_X2:
609 num_lanes_factor = 2;
610 break;
611 case CAIL_PCIE_LINK_WIDTH_SUPPORT_X4:
612 num_lanes_factor = 4;
613 break;
614 case CAIL_PCIE_LINK_WIDTH_SUPPORT_X8:
615 num_lanes_factor = 8;
616 break;
617 case CAIL_PCIE_LINK_WIDTH_SUPPORT_X12:
618 num_lanes_factor = 12;
619 break;
620 case CAIL_PCIE_LINK_WIDTH_SUPPORT_X16:
621 num_lanes_factor = 16;
622 break;
623 case CAIL_PCIE_LINK_WIDTH_SUPPORT_X32:
624 num_lanes_factor = 32;
625 break;
626 }
627
628 switch (gen_speed_mask) {
629 case CAIL_PCIE_LINK_SPEED_SUPPORT_GEN1:
630 gen_speed_mbits_factor = 2500;
631 break;
632 case CAIL_PCIE_LINK_SPEED_SUPPORT_GEN2:
633 gen_speed_mbits_factor = 5000;
634 break;
635 case CAIL_PCIE_LINK_SPEED_SUPPORT_GEN3:
636 gen_speed_mbits_factor = 8000;
637 break;
638 case CAIL_PCIE_LINK_SPEED_SUPPORT_GEN4:
639 gen_speed_mbits_factor = 16000;
640 break;
641 case CAIL_PCIE_LINK_SPEED_SUPPORT_GEN5:
642 gen_speed_mbits_factor = 32000;
643 break;
644 }
645
646 return (num_lanes_factor * gen_speed_mbits_factor)/BITS_PER_BYTE;
647}
648
649int amdgpu_amdkfd_submit_ib(struct amdgpu_device *adev,
650 enum kgd_engine_type engine,
651 uint32_t vmid, uint64_t gpu_addr,
652 uint32_t *ib_cmd, uint32_t ib_len)
653{
654 struct amdgpu_job *job;
655 struct amdgpu_ib *ib;
656 struct amdgpu_ring *ring;
657 struct dma_fence *f = NULL;
658 int ret;
659
660 switch (engine) {
661 case KGD_ENGINE_MEC1:
662 ring = &adev->gfx.compute_ring[0];
663 break;
664 case KGD_ENGINE_SDMA1:
665 ring = &adev->sdma.instance[0].ring;
666 break;
667 case KGD_ENGINE_SDMA2:
668 ring = &adev->sdma.instance[1].ring;
669 break;
670 default:
671 pr_err("Invalid engine in IB submission: %d\n", engine);
672 ret = -EINVAL;
673 goto err;
674 }
675
676 ret = amdgpu_job_alloc(adev, NULL, NULL, NULL, 1, &job);
677 if (ret)
678 goto err;
679
680 ib = &job->ibs[0];
681 memset(ib, 0, sizeof(struct amdgpu_ib));
682
683 ib->gpu_addr = gpu_addr;
684 ib->ptr = ib_cmd;
685 ib->length_dw = ib_len;
686 /* This works for NO_HWS. TODO: need to handle without knowing VMID */
687 job->vmid = vmid;
688 job->num_ibs = 1;
689
690 ret = amdgpu_ib_schedule(ring, 1, ib, job, &f);
691
692 if (ret) {
693 DRM_ERROR("amdgpu: failed to schedule IB.\n");
694 goto err_ib_sched;
695 }
696
697 /* Drop the initial kref_init count (see drm_sched_main as example) */
698 dma_fence_put(f);
699 ret = dma_fence_wait(f, false);
700
701err_ib_sched:
702 amdgpu_job_free(job);
703err:
704 return ret;
705}
706
707void amdgpu_amdkfd_set_compute_idle(struct amdgpu_device *adev, bool idle)
708{
709 /* Temporary workaround to fix issues observed in some
710 * compute applications when GFXOFF is enabled on GFX11.
711 */
712 if (IP_VERSION_MAJ(adev->ip_versions[GC_HWIP][0]) == 11) {
713 pr_debug("GFXOFF is %s\n", idle ? "enabled" : "disabled");
714 amdgpu_gfx_off_ctrl(adev, idle);
715 }
716 amdgpu_dpm_switch_power_profile(adev,
717 PP_SMC_POWER_PROFILE_COMPUTE,
718 !idle);
719}
720
721bool amdgpu_amdkfd_is_kfd_vmid(struct amdgpu_device *adev, u32 vmid)
722{
723 if (adev->kfd.dev)
724 return vmid >= adev->vm_manager.first_kfd_vmid;
725
726 return false;
727}
728
729int amdgpu_amdkfd_flush_gpu_tlb_vmid(struct amdgpu_device *adev,
730 uint16_t vmid)
731{
732 if (adev->family == AMDGPU_FAMILY_AI) {
733 int i;
734
735 for (i = 0; i < adev->num_vmhubs; i++)
736 amdgpu_gmc_flush_gpu_tlb(adev, vmid, i, 0);
737 } else {
738 amdgpu_gmc_flush_gpu_tlb(adev, vmid, AMDGPU_GFXHUB_0, 0);
739 }
740
741 return 0;
742}
743
744int amdgpu_amdkfd_flush_gpu_tlb_pasid(struct amdgpu_device *adev,
745 uint16_t pasid, enum TLB_FLUSH_TYPE flush_type)
746{
747 bool all_hub = false;
748
749 if (adev->family == AMDGPU_FAMILY_AI ||
750 adev->family == AMDGPU_FAMILY_RV)
751 all_hub = true;
752
753 return amdgpu_gmc_flush_gpu_tlb_pasid(adev, pasid, flush_type, all_hub);
754}
755
756bool amdgpu_amdkfd_have_atomics_support(struct amdgpu_device *adev)
757{
758 return adev->have_atomics_support;
759}
760
761void amdgpu_amdkfd_ras_poison_consumption_handler(struct amdgpu_device *adev, bool reset)
762{
763 amdgpu_umc_poison_handler(adev, reset);
764}
765
766bool amdgpu_amdkfd_ras_query_utcl2_poison_status(struct amdgpu_device *adev)
767{
768 if (adev->gfx.ras && adev->gfx.ras->query_utcl2_poison_status)
769 return adev->gfx.ras->query_utcl2_poison_status(adev);
770 else
771 return false;
772}