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1/*
2 * Copyright 2016 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
24#include <linux/module.h>
25
26#ifdef CONFIG_X86
27#include <asm/hypervisor.h>
28#endif
29
30#include <drm/drm_drv.h>
31#include <xen/xen.h>
32
33#include "amdgpu.h"
34#include "amdgpu_ras.h"
35#include "vi.h"
36#include "soc15.h"
37#include "nv.h"
38
39#define POPULATE_UCODE_INFO(vf2pf_info, ucode, ver) \
40 do { \
41 vf2pf_info->ucode_info[ucode].id = ucode; \
42 vf2pf_info->ucode_info[ucode].version = ver; \
43 } while (0)
44
45bool amdgpu_virt_mmio_blocked(struct amdgpu_device *adev)
46{
47 /* By now all MMIO pages except mailbox are blocked */
48 /* if blocking is enabled in hypervisor. Choose the */
49 /* SCRATCH_REG0 to test. */
50 return RREG32_NO_KIQ(0xc040) == 0xffffffff;
51}
52
53void amdgpu_virt_init_setting(struct amdgpu_device *adev)
54{
55 struct drm_device *ddev = adev_to_drm(adev);
56
57 /* enable virtual display */
58 if (adev->asic_type != CHIP_ALDEBARAN &&
59 adev->asic_type != CHIP_ARCTURUS &&
60 ((adev->pdev->class >> 8) != PCI_CLASS_ACCELERATOR_PROCESSING)) {
61 if (adev->mode_info.num_crtc == 0)
62 adev->mode_info.num_crtc = 1;
63 adev->enable_virtual_display = true;
64 }
65 ddev->driver_features &= ~DRIVER_ATOMIC;
66 adev->cg_flags = 0;
67 adev->pg_flags = 0;
68
69 /* Reduce kcq number to 2 to reduce latency */
70 if (amdgpu_num_kcq == -1)
71 amdgpu_num_kcq = 2;
72}
73
74/**
75 * amdgpu_virt_request_full_gpu() - request full gpu access
76 * @adev: amdgpu device.
77 * @init: is driver init time.
78 * When start to init/fini driver, first need to request full gpu access.
79 * Return: Zero if request success, otherwise will return error.
80 */
81int amdgpu_virt_request_full_gpu(struct amdgpu_device *adev, bool init)
82{
83 struct amdgpu_virt *virt = &adev->virt;
84 int r;
85
86 if (virt->ops && virt->ops->req_full_gpu) {
87 r = virt->ops->req_full_gpu(adev, init);
88 if (r)
89 return r;
90
91 adev->virt.caps &= ~AMDGPU_SRIOV_CAPS_RUNTIME;
92 }
93
94 return 0;
95}
96
97/**
98 * amdgpu_virt_release_full_gpu() - release full gpu access
99 * @adev: amdgpu device.
100 * @init: is driver init time.
101 * When finishing driver init/fini, need to release full gpu access.
102 * Return: Zero if release success, otherwise will returen error.
103 */
104int amdgpu_virt_release_full_gpu(struct amdgpu_device *adev, bool init)
105{
106 struct amdgpu_virt *virt = &adev->virt;
107 int r;
108
109 if (virt->ops && virt->ops->rel_full_gpu) {
110 r = virt->ops->rel_full_gpu(adev, init);
111 if (r)
112 return r;
113
114 adev->virt.caps |= AMDGPU_SRIOV_CAPS_RUNTIME;
115 }
116 return 0;
117}
118
119/**
120 * amdgpu_virt_reset_gpu() - reset gpu
121 * @adev: amdgpu device.
122 * Send reset command to GPU hypervisor to reset GPU that VM is using
123 * Return: Zero if reset success, otherwise will return error.
124 */
125int amdgpu_virt_reset_gpu(struct amdgpu_device *adev)
126{
127 struct amdgpu_virt *virt = &adev->virt;
128 int r;
129
130 if (virt->ops && virt->ops->reset_gpu) {
131 r = virt->ops->reset_gpu(adev);
132 if (r)
133 return r;
134
135 adev->virt.caps &= ~AMDGPU_SRIOV_CAPS_RUNTIME;
136 }
137
138 return 0;
139}
140
141void amdgpu_virt_request_init_data(struct amdgpu_device *adev)
142{
143 struct amdgpu_virt *virt = &adev->virt;
144
145 if (virt->ops && virt->ops->req_init_data)
146 virt->ops->req_init_data(adev);
147
148 if (adev->virt.req_init_data_ver > 0)
149 DRM_INFO("host supports REQ_INIT_DATA handshake\n");
150 else
151 DRM_WARN("host doesn't support REQ_INIT_DATA handshake\n");
152}
153
154/**
155 * amdgpu_virt_wait_reset() - wait for reset gpu completed
156 * @adev: amdgpu device.
157 * Wait for GPU reset completed.
158 * Return: Zero if reset success, otherwise will return error.
159 */
160int amdgpu_virt_wait_reset(struct amdgpu_device *adev)
161{
162 struct amdgpu_virt *virt = &adev->virt;
163
164 if (!virt->ops || !virt->ops->wait_reset)
165 return -EINVAL;
166
167 return virt->ops->wait_reset(adev);
168}
169
170/**
171 * amdgpu_virt_alloc_mm_table() - alloc memory for mm table
172 * @adev: amdgpu device.
173 * MM table is used by UVD and VCE for its initialization
174 * Return: Zero if allocate success.
175 */
176int amdgpu_virt_alloc_mm_table(struct amdgpu_device *adev)
177{
178 int r;
179
180 if (!amdgpu_sriov_vf(adev) || adev->virt.mm_table.gpu_addr)
181 return 0;
182
183 r = amdgpu_bo_create_kernel(adev, PAGE_SIZE, PAGE_SIZE,
184 AMDGPU_GEM_DOMAIN_VRAM |
185 AMDGPU_GEM_DOMAIN_GTT,
186 &adev->virt.mm_table.bo,
187 &adev->virt.mm_table.gpu_addr,
188 (void *)&adev->virt.mm_table.cpu_addr);
189 if (r) {
190 DRM_ERROR("failed to alloc mm table and error = %d.\n", r);
191 return r;
192 }
193
194 memset((void *)adev->virt.mm_table.cpu_addr, 0, PAGE_SIZE);
195 DRM_INFO("MM table gpu addr = 0x%llx, cpu addr = %p.\n",
196 adev->virt.mm_table.gpu_addr,
197 adev->virt.mm_table.cpu_addr);
198 return 0;
199}
200
201/**
202 * amdgpu_virt_free_mm_table() - free mm table memory
203 * @adev: amdgpu device.
204 * Free MM table memory
205 */
206void amdgpu_virt_free_mm_table(struct amdgpu_device *adev)
207{
208 if (!amdgpu_sriov_vf(adev) || !adev->virt.mm_table.gpu_addr)
209 return;
210
211 amdgpu_bo_free_kernel(&adev->virt.mm_table.bo,
212 &adev->virt.mm_table.gpu_addr,
213 (void *)&adev->virt.mm_table.cpu_addr);
214 adev->virt.mm_table.gpu_addr = 0;
215}
216
217
218unsigned int amd_sriov_msg_checksum(void *obj,
219 unsigned long obj_size,
220 unsigned int key,
221 unsigned int checksum)
222{
223 unsigned int ret = key;
224 unsigned long i = 0;
225 unsigned char *pos;
226
227 pos = (char *)obj;
228 /* calculate checksum */
229 for (i = 0; i < obj_size; ++i)
230 ret += *(pos + i);
231 /* minus the checksum itself */
232 pos = (char *)&checksum;
233 for (i = 0; i < sizeof(checksum); ++i)
234 ret -= *(pos + i);
235 return ret;
236}
237
238static int amdgpu_virt_init_ras_err_handler_data(struct amdgpu_device *adev)
239{
240 struct amdgpu_virt *virt = &adev->virt;
241 struct amdgpu_virt_ras_err_handler_data **data = &virt->virt_eh_data;
242 /* GPU will be marked bad on host if bp count more then 10,
243 * so alloc 512 is enough.
244 */
245 unsigned int align_space = 512;
246 void *bps = NULL;
247 struct amdgpu_bo **bps_bo = NULL;
248
249 *data = kmalloc(sizeof(struct amdgpu_virt_ras_err_handler_data), GFP_KERNEL);
250 if (!*data)
251 goto data_failure;
252
253 bps = kmalloc_array(align_space, sizeof(*(*data)->bps), GFP_KERNEL);
254 if (!bps)
255 goto bps_failure;
256
257 bps_bo = kmalloc_array(align_space, sizeof(*(*data)->bps_bo), GFP_KERNEL);
258 if (!bps_bo)
259 goto bps_bo_failure;
260
261 (*data)->bps = bps;
262 (*data)->bps_bo = bps_bo;
263 (*data)->count = 0;
264 (*data)->last_reserved = 0;
265
266 virt->ras_init_done = true;
267
268 return 0;
269
270bps_bo_failure:
271 kfree(bps);
272bps_failure:
273 kfree(*data);
274data_failure:
275 return -ENOMEM;
276}
277
278static void amdgpu_virt_ras_release_bp(struct amdgpu_device *adev)
279{
280 struct amdgpu_virt *virt = &adev->virt;
281 struct amdgpu_virt_ras_err_handler_data *data = virt->virt_eh_data;
282 struct amdgpu_bo *bo;
283 int i;
284
285 if (!data)
286 return;
287
288 for (i = data->last_reserved - 1; i >= 0; i--) {
289 bo = data->bps_bo[i];
290 if (bo) {
291 amdgpu_bo_free_kernel(&bo, NULL, NULL);
292 data->bps_bo[i] = bo;
293 }
294 data->last_reserved = i;
295 }
296}
297
298void amdgpu_virt_release_ras_err_handler_data(struct amdgpu_device *adev)
299{
300 struct amdgpu_virt *virt = &adev->virt;
301 struct amdgpu_virt_ras_err_handler_data *data = virt->virt_eh_data;
302
303 virt->ras_init_done = false;
304
305 if (!data)
306 return;
307
308 amdgpu_virt_ras_release_bp(adev);
309
310 kfree(data->bps);
311 kfree(data->bps_bo);
312 kfree(data);
313 virt->virt_eh_data = NULL;
314}
315
316static void amdgpu_virt_ras_add_bps(struct amdgpu_device *adev,
317 struct eeprom_table_record *bps, int pages)
318{
319 struct amdgpu_virt *virt = &adev->virt;
320 struct amdgpu_virt_ras_err_handler_data *data = virt->virt_eh_data;
321
322 if (!data)
323 return;
324
325 memcpy(&data->bps[data->count], bps, pages * sizeof(*data->bps));
326 data->count += pages;
327}
328
329static void amdgpu_virt_ras_reserve_bps(struct amdgpu_device *adev)
330{
331 struct amdgpu_virt *virt = &adev->virt;
332 struct amdgpu_virt_ras_err_handler_data *data = virt->virt_eh_data;
333 struct amdgpu_vram_mgr *mgr = &adev->mman.vram_mgr;
334 struct ttm_resource_manager *man = &mgr->manager;
335 struct amdgpu_bo *bo = NULL;
336 uint64_t bp;
337 int i;
338
339 if (!data)
340 return;
341
342 for (i = data->last_reserved; i < data->count; i++) {
343 bp = data->bps[i].retired_page;
344
345 /* There are two cases of reserve error should be ignored:
346 * 1) a ras bad page has been allocated (used by someone);
347 * 2) a ras bad page has been reserved (duplicate error injection
348 * for one page);
349 */
350 if (ttm_resource_manager_used(man)) {
351 amdgpu_vram_mgr_reserve_range(&adev->mman.vram_mgr,
352 bp << AMDGPU_GPU_PAGE_SHIFT,
353 AMDGPU_GPU_PAGE_SIZE);
354 data->bps_bo[i] = NULL;
355 } else {
356 if (amdgpu_bo_create_kernel_at(adev, bp << AMDGPU_GPU_PAGE_SHIFT,
357 AMDGPU_GPU_PAGE_SIZE,
358 &bo, NULL))
359 DRM_DEBUG("RAS WARN: reserve vram for retired page %llx fail\n", bp);
360 data->bps_bo[i] = bo;
361 }
362 data->last_reserved = i + 1;
363 bo = NULL;
364 }
365}
366
367static bool amdgpu_virt_ras_check_bad_page(struct amdgpu_device *adev,
368 uint64_t retired_page)
369{
370 struct amdgpu_virt *virt = &adev->virt;
371 struct amdgpu_virt_ras_err_handler_data *data = virt->virt_eh_data;
372 int i;
373
374 if (!data)
375 return true;
376
377 for (i = 0; i < data->count; i++)
378 if (retired_page == data->bps[i].retired_page)
379 return true;
380
381 return false;
382}
383
384static void amdgpu_virt_add_bad_page(struct amdgpu_device *adev,
385 uint64_t bp_block_offset, uint32_t bp_block_size)
386{
387 struct eeprom_table_record bp;
388 uint64_t retired_page;
389 uint32_t bp_idx, bp_cnt;
390 void *vram_usage_va = NULL;
391
392 if (adev->mman.fw_vram_usage_va)
393 vram_usage_va = adev->mman.fw_vram_usage_va;
394 else
395 vram_usage_va = adev->mman.drv_vram_usage_va;
396
397 if (bp_block_size) {
398 bp_cnt = bp_block_size / sizeof(uint64_t);
399 for (bp_idx = 0; bp_idx < bp_cnt; bp_idx++) {
400 retired_page = *(uint64_t *)(vram_usage_va +
401 bp_block_offset + bp_idx * sizeof(uint64_t));
402 bp.retired_page = retired_page;
403
404 if (amdgpu_virt_ras_check_bad_page(adev, retired_page))
405 continue;
406
407 amdgpu_virt_ras_add_bps(adev, &bp, 1);
408
409 amdgpu_virt_ras_reserve_bps(adev);
410 }
411 }
412}
413
414static int amdgpu_virt_read_pf2vf_data(struct amdgpu_device *adev)
415{
416 struct amd_sriov_msg_pf2vf_info_header *pf2vf_info = adev->virt.fw_reserve.p_pf2vf;
417 uint32_t checksum;
418 uint32_t checkval;
419
420 uint32_t i;
421 uint32_t tmp;
422
423 if (adev->virt.fw_reserve.p_pf2vf == NULL)
424 return -EINVAL;
425
426 if (pf2vf_info->size > 1024) {
427 DRM_ERROR("invalid pf2vf message size\n");
428 return -EINVAL;
429 }
430
431 switch (pf2vf_info->version) {
432 case 1:
433 checksum = ((struct amdgim_pf2vf_info_v1 *)pf2vf_info)->checksum;
434 checkval = amd_sriov_msg_checksum(
435 adev->virt.fw_reserve.p_pf2vf, pf2vf_info->size,
436 adev->virt.fw_reserve.checksum_key, checksum);
437 if (checksum != checkval) {
438 DRM_ERROR("invalid pf2vf message\n");
439 return -EINVAL;
440 }
441
442 adev->virt.gim_feature =
443 ((struct amdgim_pf2vf_info_v1 *)pf2vf_info)->feature_flags;
444 break;
445 case 2:
446 /* TODO: missing key, need to add it later */
447 checksum = ((struct amd_sriov_msg_pf2vf_info *)pf2vf_info)->checksum;
448 checkval = amd_sriov_msg_checksum(
449 adev->virt.fw_reserve.p_pf2vf, pf2vf_info->size,
450 0, checksum);
451 if (checksum != checkval) {
452 DRM_ERROR("invalid pf2vf message\n");
453 return -EINVAL;
454 }
455
456 adev->virt.vf2pf_update_interval_ms =
457 ((struct amd_sriov_msg_pf2vf_info *)pf2vf_info)->vf2pf_update_interval_ms;
458 adev->virt.gim_feature =
459 ((struct amd_sriov_msg_pf2vf_info *)pf2vf_info)->feature_flags.all;
460 adev->virt.reg_access =
461 ((struct amd_sriov_msg_pf2vf_info *)pf2vf_info)->reg_access_flags.all;
462
463 adev->virt.decode_max_dimension_pixels = 0;
464 adev->virt.decode_max_frame_pixels = 0;
465 adev->virt.encode_max_dimension_pixels = 0;
466 adev->virt.encode_max_frame_pixels = 0;
467 adev->virt.is_mm_bw_enabled = false;
468 for (i = 0; i < AMD_SRIOV_MSG_RESERVE_VCN_INST; i++) {
469 tmp = ((struct amd_sriov_msg_pf2vf_info *)pf2vf_info)->mm_bw_management[i].decode_max_dimension_pixels;
470 adev->virt.decode_max_dimension_pixels = max(tmp, adev->virt.decode_max_dimension_pixels);
471
472 tmp = ((struct amd_sriov_msg_pf2vf_info *)pf2vf_info)->mm_bw_management[i].decode_max_frame_pixels;
473 adev->virt.decode_max_frame_pixels = max(tmp, adev->virt.decode_max_frame_pixels);
474
475 tmp = ((struct amd_sriov_msg_pf2vf_info *)pf2vf_info)->mm_bw_management[i].encode_max_dimension_pixels;
476 adev->virt.encode_max_dimension_pixels = max(tmp, adev->virt.encode_max_dimension_pixels);
477
478 tmp = ((struct amd_sriov_msg_pf2vf_info *)pf2vf_info)->mm_bw_management[i].encode_max_frame_pixels;
479 adev->virt.encode_max_frame_pixels = max(tmp, adev->virt.encode_max_frame_pixels);
480 }
481 if ((adev->virt.decode_max_dimension_pixels > 0) || (adev->virt.encode_max_dimension_pixels > 0))
482 adev->virt.is_mm_bw_enabled = true;
483
484 adev->unique_id =
485 ((struct amd_sriov_msg_pf2vf_info *)pf2vf_info)->uuid;
486 break;
487 default:
488 DRM_ERROR("invalid pf2vf version\n");
489 return -EINVAL;
490 }
491
492 /* correct too large or too little interval value */
493 if (adev->virt.vf2pf_update_interval_ms < 200 || adev->virt.vf2pf_update_interval_ms > 10000)
494 adev->virt.vf2pf_update_interval_ms = 2000;
495
496 return 0;
497}
498
499static void amdgpu_virt_populate_vf2pf_ucode_info(struct amdgpu_device *adev)
500{
501 struct amd_sriov_msg_vf2pf_info *vf2pf_info;
502 vf2pf_info = (struct amd_sriov_msg_vf2pf_info *) adev->virt.fw_reserve.p_vf2pf;
503
504 if (adev->virt.fw_reserve.p_vf2pf == NULL)
505 return;
506
507 POPULATE_UCODE_INFO(vf2pf_info, AMD_SRIOV_UCODE_ID_VCE, adev->vce.fw_version);
508 POPULATE_UCODE_INFO(vf2pf_info, AMD_SRIOV_UCODE_ID_UVD, adev->uvd.fw_version);
509 POPULATE_UCODE_INFO(vf2pf_info, AMD_SRIOV_UCODE_ID_MC, adev->gmc.fw_version);
510 POPULATE_UCODE_INFO(vf2pf_info, AMD_SRIOV_UCODE_ID_ME, adev->gfx.me_fw_version);
511 POPULATE_UCODE_INFO(vf2pf_info, AMD_SRIOV_UCODE_ID_PFP, adev->gfx.pfp_fw_version);
512 POPULATE_UCODE_INFO(vf2pf_info, AMD_SRIOV_UCODE_ID_CE, adev->gfx.ce_fw_version);
513 POPULATE_UCODE_INFO(vf2pf_info, AMD_SRIOV_UCODE_ID_RLC, adev->gfx.rlc_fw_version);
514 POPULATE_UCODE_INFO(vf2pf_info, AMD_SRIOV_UCODE_ID_RLC_SRLC, adev->gfx.rlc_srlc_fw_version);
515 POPULATE_UCODE_INFO(vf2pf_info, AMD_SRIOV_UCODE_ID_RLC_SRLG, adev->gfx.rlc_srlg_fw_version);
516 POPULATE_UCODE_INFO(vf2pf_info, AMD_SRIOV_UCODE_ID_RLC_SRLS, adev->gfx.rlc_srls_fw_version);
517 POPULATE_UCODE_INFO(vf2pf_info, AMD_SRIOV_UCODE_ID_MEC, adev->gfx.mec_fw_version);
518 POPULATE_UCODE_INFO(vf2pf_info, AMD_SRIOV_UCODE_ID_MEC2, adev->gfx.mec2_fw_version);
519 POPULATE_UCODE_INFO(vf2pf_info, AMD_SRIOV_UCODE_ID_SOS, adev->psp.sos.fw_version);
520 POPULATE_UCODE_INFO(vf2pf_info, AMD_SRIOV_UCODE_ID_ASD,
521 adev->psp.asd_context.bin_desc.fw_version);
522 POPULATE_UCODE_INFO(vf2pf_info, AMD_SRIOV_UCODE_ID_TA_RAS,
523 adev->psp.ras_context.context.bin_desc.fw_version);
524 POPULATE_UCODE_INFO(vf2pf_info, AMD_SRIOV_UCODE_ID_TA_XGMI,
525 adev->psp.xgmi_context.context.bin_desc.fw_version);
526 POPULATE_UCODE_INFO(vf2pf_info, AMD_SRIOV_UCODE_ID_SMC, adev->pm.fw_version);
527 POPULATE_UCODE_INFO(vf2pf_info, AMD_SRIOV_UCODE_ID_SDMA, adev->sdma.instance[0].fw_version);
528 POPULATE_UCODE_INFO(vf2pf_info, AMD_SRIOV_UCODE_ID_SDMA2, adev->sdma.instance[1].fw_version);
529 POPULATE_UCODE_INFO(vf2pf_info, AMD_SRIOV_UCODE_ID_VCN, adev->vcn.fw_version);
530 POPULATE_UCODE_INFO(vf2pf_info, AMD_SRIOV_UCODE_ID_DMCU, adev->dm.dmcu_fw_version);
531}
532
533static int amdgpu_virt_write_vf2pf_data(struct amdgpu_device *adev)
534{
535 struct amd_sriov_msg_vf2pf_info *vf2pf_info;
536
537 vf2pf_info = (struct amd_sriov_msg_vf2pf_info *) adev->virt.fw_reserve.p_vf2pf;
538
539 if (adev->virt.fw_reserve.p_vf2pf == NULL)
540 return -EINVAL;
541
542 memset(vf2pf_info, 0, sizeof(struct amd_sriov_msg_vf2pf_info));
543
544 vf2pf_info->header.size = sizeof(struct amd_sriov_msg_vf2pf_info);
545 vf2pf_info->header.version = AMD_SRIOV_MSG_FW_VRAM_VF2PF_VER;
546
547#ifdef MODULE
548 if (THIS_MODULE->version != NULL)
549 strcpy(vf2pf_info->driver_version, THIS_MODULE->version);
550 else
551#endif
552 strcpy(vf2pf_info->driver_version, "N/A");
553
554 vf2pf_info->pf2vf_version_required = 0; // no requirement, guest understands all
555 vf2pf_info->driver_cert = 0;
556 vf2pf_info->os_info.all = 0;
557
558 vf2pf_info->fb_usage =
559 ttm_resource_manager_usage(&adev->mman.vram_mgr.manager) >> 20;
560 vf2pf_info->fb_vis_usage =
561 amdgpu_vram_mgr_vis_usage(&adev->mman.vram_mgr) >> 20;
562 vf2pf_info->fb_size = adev->gmc.real_vram_size >> 20;
563 vf2pf_info->fb_vis_size = adev->gmc.visible_vram_size >> 20;
564
565 amdgpu_virt_populate_vf2pf_ucode_info(adev);
566
567 /* TODO: read dynamic info */
568 vf2pf_info->gfx_usage = 0;
569 vf2pf_info->compute_usage = 0;
570 vf2pf_info->encode_usage = 0;
571 vf2pf_info->decode_usage = 0;
572
573 vf2pf_info->dummy_page_addr = (uint64_t)adev->dummy_page_addr;
574 vf2pf_info->checksum =
575 amd_sriov_msg_checksum(
576 vf2pf_info, vf2pf_info->header.size, 0, 0);
577
578 return 0;
579}
580
581static void amdgpu_virt_update_vf2pf_work_item(struct work_struct *work)
582{
583 struct amdgpu_device *adev = container_of(work, struct amdgpu_device, virt.vf2pf_work.work);
584 int ret;
585
586 ret = amdgpu_virt_read_pf2vf_data(adev);
587 if (ret)
588 goto out;
589 amdgpu_virt_write_vf2pf_data(adev);
590
591out:
592 schedule_delayed_work(&(adev->virt.vf2pf_work), adev->virt.vf2pf_update_interval_ms);
593}
594
595void amdgpu_virt_fini_data_exchange(struct amdgpu_device *adev)
596{
597 if (adev->virt.vf2pf_update_interval_ms != 0) {
598 DRM_INFO("clean up the vf2pf work item\n");
599 cancel_delayed_work_sync(&adev->virt.vf2pf_work);
600 adev->virt.vf2pf_update_interval_ms = 0;
601 }
602}
603
604void amdgpu_virt_init_data_exchange(struct amdgpu_device *adev)
605{
606 adev->virt.fw_reserve.p_pf2vf = NULL;
607 adev->virt.fw_reserve.p_vf2pf = NULL;
608 adev->virt.vf2pf_update_interval_ms = 0;
609
610 if (adev->mman.fw_vram_usage_va && adev->mman.drv_vram_usage_va) {
611 DRM_WARN("Currently fw_vram and drv_vram should not have values at the same time!");
612 } else if (adev->mman.fw_vram_usage_va || adev->mman.drv_vram_usage_va) {
613 /* go through this logic in ip_init and reset to init workqueue*/
614 amdgpu_virt_exchange_data(adev);
615
616 INIT_DELAYED_WORK(&adev->virt.vf2pf_work, amdgpu_virt_update_vf2pf_work_item);
617 schedule_delayed_work(&(adev->virt.vf2pf_work), msecs_to_jiffies(adev->virt.vf2pf_update_interval_ms));
618 } else if (adev->bios != NULL) {
619 /* got through this logic in early init stage to get necessary flags, e.g. rlcg_acc related*/
620 adev->virt.fw_reserve.p_pf2vf =
621 (struct amd_sriov_msg_pf2vf_info_header *)
622 (adev->bios + (AMD_SRIOV_MSG_PF2VF_OFFSET_KB << 10));
623
624 amdgpu_virt_read_pf2vf_data(adev);
625 }
626}
627
628
629void amdgpu_virt_exchange_data(struct amdgpu_device *adev)
630{
631 uint64_t bp_block_offset = 0;
632 uint32_t bp_block_size = 0;
633 struct amd_sriov_msg_pf2vf_info *pf2vf_v2 = NULL;
634
635 if (adev->mman.fw_vram_usage_va || adev->mman.drv_vram_usage_va) {
636 if (adev->mman.fw_vram_usage_va) {
637 adev->virt.fw_reserve.p_pf2vf =
638 (struct amd_sriov_msg_pf2vf_info_header *)
639 (adev->mman.fw_vram_usage_va + (AMD_SRIOV_MSG_PF2VF_OFFSET_KB << 10));
640 adev->virt.fw_reserve.p_vf2pf =
641 (struct amd_sriov_msg_vf2pf_info_header *)
642 (adev->mman.fw_vram_usage_va + (AMD_SRIOV_MSG_VF2PF_OFFSET_KB << 10));
643 } else if (adev->mman.drv_vram_usage_va) {
644 adev->virt.fw_reserve.p_pf2vf =
645 (struct amd_sriov_msg_pf2vf_info_header *)
646 (adev->mman.drv_vram_usage_va + (AMD_SRIOV_MSG_PF2VF_OFFSET_KB << 10));
647 adev->virt.fw_reserve.p_vf2pf =
648 (struct amd_sriov_msg_vf2pf_info_header *)
649 (adev->mman.drv_vram_usage_va + (AMD_SRIOV_MSG_VF2PF_OFFSET_KB << 10));
650 }
651
652 amdgpu_virt_read_pf2vf_data(adev);
653 amdgpu_virt_write_vf2pf_data(adev);
654
655 /* bad page handling for version 2 */
656 if (adev->virt.fw_reserve.p_pf2vf->version == 2) {
657 pf2vf_v2 = (struct amd_sriov_msg_pf2vf_info *)adev->virt.fw_reserve.p_pf2vf;
658
659 bp_block_offset = ((uint64_t)pf2vf_v2->bp_block_offset_low & 0xFFFFFFFF) |
660 ((((uint64_t)pf2vf_v2->bp_block_offset_high) << 32) & 0xFFFFFFFF00000000);
661 bp_block_size = pf2vf_v2->bp_block_size;
662
663 if (bp_block_size && !adev->virt.ras_init_done)
664 amdgpu_virt_init_ras_err_handler_data(adev);
665
666 if (adev->virt.ras_init_done)
667 amdgpu_virt_add_bad_page(adev, bp_block_offset, bp_block_size);
668 }
669 }
670}
671
672void amdgpu_detect_virtualization(struct amdgpu_device *adev)
673{
674 uint32_t reg;
675
676 switch (adev->asic_type) {
677 case CHIP_TONGA:
678 case CHIP_FIJI:
679 reg = RREG32(mmBIF_IOV_FUNC_IDENTIFIER);
680 break;
681 case CHIP_VEGA10:
682 case CHIP_VEGA20:
683 case CHIP_NAVI10:
684 case CHIP_NAVI12:
685 case CHIP_SIENNA_CICHLID:
686 case CHIP_ARCTURUS:
687 case CHIP_ALDEBARAN:
688 case CHIP_IP_DISCOVERY:
689 reg = RREG32(mmRCC_IOV_FUNC_IDENTIFIER);
690 break;
691 default: /* other chip doesn't support SRIOV */
692 reg = 0;
693 break;
694 }
695
696 if (reg & 1)
697 adev->virt.caps |= AMDGPU_SRIOV_CAPS_IS_VF;
698
699 if (reg & 0x80000000)
700 adev->virt.caps |= AMDGPU_SRIOV_CAPS_ENABLE_IOV;
701
702 if (!reg) {
703 /* passthrough mode exclus sriov mod */
704 if (is_virtual_machine() && !xen_initial_domain())
705 adev->virt.caps |= AMDGPU_PASSTHROUGH_MODE;
706 }
707
708 if (amdgpu_sriov_vf(adev) && adev->asic_type == CHIP_SIENNA_CICHLID)
709 /* VF MMIO access (except mailbox range) from CPU
710 * will be blocked during sriov runtime
711 */
712 adev->virt.caps |= AMDGPU_VF_MMIO_ACCESS_PROTECT;
713
714 /* we have the ability to check now */
715 if (amdgpu_sriov_vf(adev)) {
716 switch (adev->asic_type) {
717 case CHIP_TONGA:
718 case CHIP_FIJI:
719 vi_set_virt_ops(adev);
720 break;
721 case CHIP_VEGA10:
722 soc15_set_virt_ops(adev);
723#ifdef CONFIG_X86
724 /* not send GPU_INIT_DATA with MS_HYPERV*/
725 if (!hypervisor_is_type(X86_HYPER_MS_HYPERV))
726#endif
727 /* send a dummy GPU_INIT_DATA request to host on vega10 */
728 amdgpu_virt_request_init_data(adev);
729 break;
730 case CHIP_VEGA20:
731 case CHIP_ARCTURUS:
732 case CHIP_ALDEBARAN:
733 soc15_set_virt_ops(adev);
734 break;
735 case CHIP_NAVI10:
736 case CHIP_NAVI12:
737 case CHIP_SIENNA_CICHLID:
738 case CHIP_IP_DISCOVERY:
739 nv_set_virt_ops(adev);
740 /* try send GPU_INIT_DATA request to host */
741 amdgpu_virt_request_init_data(adev);
742 break;
743 default: /* other chip doesn't support SRIOV */
744 DRM_ERROR("Unknown asic type: %d!\n", adev->asic_type);
745 break;
746 }
747 }
748}
749
750static bool amdgpu_virt_access_debugfs_is_mmio(struct amdgpu_device *adev)
751{
752 return amdgpu_sriov_is_debug(adev) ? true : false;
753}
754
755static bool amdgpu_virt_access_debugfs_is_kiq(struct amdgpu_device *adev)
756{
757 return amdgpu_sriov_is_normal(adev) ? true : false;
758}
759
760int amdgpu_virt_enable_access_debugfs(struct amdgpu_device *adev)
761{
762 if (!amdgpu_sriov_vf(adev) ||
763 amdgpu_virt_access_debugfs_is_kiq(adev))
764 return 0;
765
766 if (amdgpu_virt_access_debugfs_is_mmio(adev))
767 adev->virt.caps &= ~AMDGPU_SRIOV_CAPS_RUNTIME;
768 else
769 return -EPERM;
770
771 return 0;
772}
773
774void amdgpu_virt_disable_access_debugfs(struct amdgpu_device *adev)
775{
776 if (amdgpu_sriov_vf(adev))
777 adev->virt.caps |= AMDGPU_SRIOV_CAPS_RUNTIME;
778}
779
780enum amdgpu_sriov_vf_mode amdgpu_virt_get_sriov_vf_mode(struct amdgpu_device *adev)
781{
782 enum amdgpu_sriov_vf_mode mode;
783
784 if (amdgpu_sriov_vf(adev)) {
785 if (amdgpu_sriov_is_pp_one_vf(adev))
786 mode = SRIOV_VF_MODE_ONE_VF;
787 else
788 mode = SRIOV_VF_MODE_MULTI_VF;
789 } else {
790 mode = SRIOV_VF_MODE_BARE_METAL;
791 }
792
793 return mode;
794}
795
796void amdgpu_virt_post_reset(struct amdgpu_device *adev)
797{
798 if (amdgpu_ip_version(adev, GC_HWIP, 0) == IP_VERSION(11, 0, 3)) {
799 /* force set to GFXOFF state after reset,
800 * to avoid some invalid operation before GC enable
801 */
802 adev->gfx.is_poweron = false;
803 }
804}
805
806bool amdgpu_virt_fw_load_skip_check(struct amdgpu_device *adev, uint32_t ucode_id)
807{
808 switch (amdgpu_ip_version(adev, MP0_HWIP, 0)) {
809 case IP_VERSION(13, 0, 0):
810 /* no vf autoload, white list */
811 if (ucode_id == AMDGPU_UCODE_ID_VCN1 ||
812 ucode_id == AMDGPU_UCODE_ID_VCN)
813 return false;
814 else
815 return true;
816 case IP_VERSION(11, 0, 9):
817 case IP_VERSION(11, 0, 7):
818 /* black list for CHIP_NAVI12 and CHIP_SIENNA_CICHLID */
819 if (ucode_id == AMDGPU_UCODE_ID_RLC_G
820 || ucode_id == AMDGPU_UCODE_ID_RLC_RESTORE_LIST_CNTL
821 || ucode_id == AMDGPU_UCODE_ID_RLC_RESTORE_LIST_GPM_MEM
822 || ucode_id == AMDGPU_UCODE_ID_RLC_RESTORE_LIST_SRM_MEM
823 || ucode_id == AMDGPU_UCODE_ID_SMC)
824 return true;
825 else
826 return false;
827 case IP_VERSION(13, 0, 10):
828 /* white list */
829 if (ucode_id == AMDGPU_UCODE_ID_CAP
830 || ucode_id == AMDGPU_UCODE_ID_CP_RS64_PFP
831 || ucode_id == AMDGPU_UCODE_ID_CP_RS64_ME
832 || ucode_id == AMDGPU_UCODE_ID_CP_RS64_MEC
833 || ucode_id == AMDGPU_UCODE_ID_CP_RS64_PFP_P0_STACK
834 || ucode_id == AMDGPU_UCODE_ID_CP_RS64_PFP_P1_STACK
835 || ucode_id == AMDGPU_UCODE_ID_CP_RS64_ME_P0_STACK
836 || ucode_id == AMDGPU_UCODE_ID_CP_RS64_ME_P1_STACK
837 || ucode_id == AMDGPU_UCODE_ID_CP_RS64_MEC_P0_STACK
838 || ucode_id == AMDGPU_UCODE_ID_CP_RS64_MEC_P1_STACK
839 || ucode_id == AMDGPU_UCODE_ID_CP_RS64_MEC_P2_STACK
840 || ucode_id == AMDGPU_UCODE_ID_CP_RS64_MEC_P3_STACK
841 || ucode_id == AMDGPU_UCODE_ID_CP_MES
842 || ucode_id == AMDGPU_UCODE_ID_CP_MES_DATA
843 || ucode_id == AMDGPU_UCODE_ID_CP_MES1
844 || ucode_id == AMDGPU_UCODE_ID_CP_MES1_DATA
845 || ucode_id == AMDGPU_UCODE_ID_VCN1
846 || ucode_id == AMDGPU_UCODE_ID_VCN)
847 return false;
848 else
849 return true;
850 default:
851 /* lagacy black list */
852 if (ucode_id == AMDGPU_UCODE_ID_SDMA0
853 || ucode_id == AMDGPU_UCODE_ID_SDMA1
854 || ucode_id == AMDGPU_UCODE_ID_SDMA2
855 || ucode_id == AMDGPU_UCODE_ID_SDMA3
856 || ucode_id == AMDGPU_UCODE_ID_SDMA4
857 || ucode_id == AMDGPU_UCODE_ID_SDMA5
858 || ucode_id == AMDGPU_UCODE_ID_SDMA6
859 || ucode_id == AMDGPU_UCODE_ID_SDMA7
860 || ucode_id == AMDGPU_UCODE_ID_RLC_G
861 || ucode_id == AMDGPU_UCODE_ID_RLC_RESTORE_LIST_CNTL
862 || ucode_id == AMDGPU_UCODE_ID_RLC_RESTORE_LIST_GPM_MEM
863 || ucode_id == AMDGPU_UCODE_ID_RLC_RESTORE_LIST_SRM_MEM
864 || ucode_id == AMDGPU_UCODE_ID_SMC)
865 return true;
866 else
867 return false;
868 }
869}
870
871void amdgpu_virt_update_sriov_video_codec(struct amdgpu_device *adev,
872 struct amdgpu_video_codec_info *encode, uint32_t encode_array_size,
873 struct amdgpu_video_codec_info *decode, uint32_t decode_array_size)
874{
875 uint32_t i;
876
877 if (!adev->virt.is_mm_bw_enabled)
878 return;
879
880 if (encode) {
881 for (i = 0; i < encode_array_size; i++) {
882 encode[i].max_width = adev->virt.encode_max_dimension_pixels;
883 encode[i].max_pixels_per_frame = adev->virt.encode_max_frame_pixels;
884 if (encode[i].max_width > 0)
885 encode[i].max_height = encode[i].max_pixels_per_frame / encode[i].max_width;
886 else
887 encode[i].max_height = 0;
888 }
889 }
890
891 if (decode) {
892 for (i = 0; i < decode_array_size; i++) {
893 decode[i].max_width = adev->virt.decode_max_dimension_pixels;
894 decode[i].max_pixels_per_frame = adev->virt.decode_max_frame_pixels;
895 if (decode[i].max_width > 0)
896 decode[i].max_height = decode[i].max_pixels_per_frame / decode[i].max_width;
897 else
898 decode[i].max_height = 0;
899 }
900 }
901}
902
903bool amdgpu_virt_get_rlcg_reg_access_flag(struct amdgpu_device *adev,
904 u32 acc_flags, u32 hwip,
905 bool write, u32 *rlcg_flag)
906{
907 bool ret = false;
908
909 switch (hwip) {
910 case GC_HWIP:
911 if (amdgpu_sriov_reg_indirect_gc(adev)) {
912 *rlcg_flag =
913 write ? AMDGPU_RLCG_GC_WRITE : AMDGPU_RLCG_GC_READ;
914 ret = true;
915 /* only in new version, AMDGPU_REGS_NO_KIQ and
916 * AMDGPU_REGS_RLC are enabled simultaneously */
917 } else if ((acc_flags & AMDGPU_REGS_RLC) &&
918 !(acc_flags & AMDGPU_REGS_NO_KIQ) && write) {
919 *rlcg_flag = AMDGPU_RLCG_GC_WRITE_LEGACY;
920 ret = true;
921 }
922 break;
923 case MMHUB_HWIP:
924 if (amdgpu_sriov_reg_indirect_mmhub(adev) &&
925 (acc_flags & AMDGPU_REGS_RLC) && write) {
926 *rlcg_flag = AMDGPU_RLCG_MMHUB_WRITE;
927 ret = true;
928 }
929 break;
930 default:
931 break;
932 }
933 return ret;
934}
935
936u32 amdgpu_virt_rlcg_reg_rw(struct amdgpu_device *adev, u32 offset, u32 v, u32 flag, u32 xcc_id)
937{
938 struct amdgpu_rlcg_reg_access_ctrl *reg_access_ctrl;
939 uint32_t timeout = 50000;
940 uint32_t i, tmp;
941 uint32_t ret = 0;
942 void *scratch_reg0;
943 void *scratch_reg1;
944 void *scratch_reg2;
945 void *scratch_reg3;
946 void *spare_int;
947
948 if (!adev->gfx.rlc.rlcg_reg_access_supported) {
949 dev_err(adev->dev,
950 "indirect registers access through rlcg is not available\n");
951 return 0;
952 }
953
954 if (adev->gfx.xcc_mask && (((1 << xcc_id) & adev->gfx.xcc_mask) == 0)) {
955 dev_err(adev->dev, "invalid xcc\n");
956 return 0;
957 }
958
959 reg_access_ctrl = &adev->gfx.rlc.reg_access_ctrl[xcc_id];
960 scratch_reg0 = (void __iomem *)adev->rmmio + 4 * reg_access_ctrl->scratch_reg0;
961 scratch_reg1 = (void __iomem *)adev->rmmio + 4 * reg_access_ctrl->scratch_reg1;
962 scratch_reg2 = (void __iomem *)adev->rmmio + 4 * reg_access_ctrl->scratch_reg2;
963 scratch_reg3 = (void __iomem *)adev->rmmio + 4 * reg_access_ctrl->scratch_reg3;
964 if (reg_access_ctrl->spare_int)
965 spare_int = (void __iomem *)adev->rmmio + 4 * reg_access_ctrl->spare_int;
966
967 if (offset == reg_access_ctrl->grbm_cntl) {
968 /* if the target reg offset is grbm_cntl, write to scratch_reg2 */
969 writel(v, scratch_reg2);
970 if (flag == AMDGPU_RLCG_GC_WRITE_LEGACY)
971 writel(v, ((void __iomem *)adev->rmmio) + (offset * 4));
972 } else if (offset == reg_access_ctrl->grbm_idx) {
973 /* if the target reg offset is grbm_idx, write to scratch_reg3 */
974 writel(v, scratch_reg3);
975 if (flag == AMDGPU_RLCG_GC_WRITE_LEGACY)
976 writel(v, ((void __iomem *)adev->rmmio) + (offset * 4));
977 } else {
978 /*
979 * SCRATCH_REG0 = read/write value
980 * SCRATCH_REG1[30:28] = command
981 * SCRATCH_REG1[19:0] = address in dword
982 * SCRATCH_REG1[27:24] = Error reporting
983 */
984 writel(v, scratch_reg0);
985 writel((offset | flag), scratch_reg1);
986 if (reg_access_ctrl->spare_int)
987 writel(1, spare_int);
988
989 for (i = 0; i < timeout; i++) {
990 tmp = readl(scratch_reg1);
991 if (!(tmp & AMDGPU_RLCG_SCRATCH1_ADDRESS_MASK))
992 break;
993 udelay(10);
994 }
995
996 tmp = readl(scratch_reg1);
997 if (i >= timeout || (tmp & AMDGPU_RLCG_SCRATCH1_ERROR_MASK) != 0) {
998 if (amdgpu_sriov_rlcg_error_report_enabled(adev)) {
999 if (tmp & AMDGPU_RLCG_VFGATE_DISABLED) {
1000 dev_err(adev->dev,
1001 "vfgate is disabled, rlcg failed to program reg: 0x%05x\n", offset);
1002 } else if (tmp & AMDGPU_RLCG_WRONG_OPERATION_TYPE) {
1003 dev_err(adev->dev,
1004 "wrong operation type, rlcg failed to program reg: 0x%05x\n", offset);
1005 } else if (tmp & AMDGPU_RLCG_REG_NOT_IN_RANGE) {
1006 dev_err(adev->dev,
1007 "register is not in range, rlcg failed to program reg: 0x%05x\n", offset);
1008 } else {
1009 dev_err(adev->dev,
1010 "unknown error type, rlcg failed to program reg: 0x%05x\n", offset);
1011 }
1012 } else {
1013 dev_err(adev->dev,
1014 "timeout: rlcg faled to program reg: 0x%05x\n", offset);
1015 }
1016 }
1017 }
1018
1019 ret = readl(scratch_reg0);
1020 return ret;
1021}
1022
1023void amdgpu_sriov_wreg(struct amdgpu_device *adev,
1024 u32 offset, u32 value,
1025 u32 acc_flags, u32 hwip, u32 xcc_id)
1026{
1027 u32 rlcg_flag;
1028
1029 if (!amdgpu_sriov_runtime(adev) &&
1030 amdgpu_virt_get_rlcg_reg_access_flag(adev, acc_flags, hwip, true, &rlcg_flag)) {
1031 amdgpu_virt_rlcg_reg_rw(adev, offset, value, rlcg_flag, xcc_id);
1032 return;
1033 }
1034
1035 if (acc_flags & AMDGPU_REGS_NO_KIQ)
1036 WREG32_NO_KIQ(offset, value);
1037 else
1038 WREG32(offset, value);
1039}
1040
1041u32 amdgpu_sriov_rreg(struct amdgpu_device *adev,
1042 u32 offset, u32 acc_flags, u32 hwip, u32 xcc_id)
1043{
1044 u32 rlcg_flag;
1045
1046 if (!amdgpu_sriov_runtime(adev) &&
1047 amdgpu_virt_get_rlcg_reg_access_flag(adev, acc_flags, hwip, false, &rlcg_flag))
1048 return amdgpu_virt_rlcg_reg_rw(adev, offset, 0, rlcg_flag, xcc_id);
1049
1050 if (acc_flags & AMDGPU_REGS_NO_KIQ)
1051 return RREG32_NO_KIQ(offset);
1052 else
1053 return RREG32(offset);
1054}
1055
1056bool amdgpu_sriov_xnack_support(struct amdgpu_device *adev)
1057{
1058 bool xnack_mode = true;
1059
1060 if (amdgpu_sriov_vf(adev) &&
1061 amdgpu_ip_version(adev, GC_HWIP, 0) == IP_VERSION(9, 4, 2))
1062 xnack_mode = false;
1063
1064 return xnack_mode;
1065}