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 45 bool 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 53 void 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 if (adev->mode_info.num_crtc == 0) 61 adev->mode_info.num_crtc = 1; 62 adev->enable_virtual_display = true; 63 } 64 ddev->driver_features &= ~DRIVER_ATOMIC; 65 adev->cg_flags = 0; 66 adev->pg_flags = 0; 67 } 68 69 void amdgpu_virt_kiq_reg_write_reg_wait(struct amdgpu_device *adev, 70 uint32_t reg0, uint32_t reg1, 71 uint32_t ref, uint32_t mask) 72 { 73 struct amdgpu_kiq *kiq = &adev->gfx.kiq; 74 struct amdgpu_ring *ring = &kiq->ring; 75 signed long r, cnt = 0; 76 unsigned long flags; 77 uint32_t seq; 78 79 if (adev->mes.ring.sched.ready) { 80 amdgpu_mes_reg_write_reg_wait(adev, reg0, reg1, 81 ref, mask); 82 return; 83 } 84 85 spin_lock_irqsave(&kiq->ring_lock, flags); 86 amdgpu_ring_alloc(ring, 32); 87 amdgpu_ring_emit_reg_write_reg_wait(ring, reg0, reg1, 88 ref, mask); 89 r = amdgpu_fence_emit_polling(ring, &seq, MAX_KIQ_REG_WAIT); 90 if (r) 91 goto failed_undo; 92 93 amdgpu_ring_commit(ring); 94 spin_unlock_irqrestore(&kiq->ring_lock, flags); 95 96 r = amdgpu_fence_wait_polling(ring, seq, MAX_KIQ_REG_WAIT); 97 98 /* don't wait anymore for IRQ context */ 99 if (r < 1 && in_interrupt()) 100 goto failed_kiq; 101 102 might_sleep(); 103 while (r < 1 && cnt++ < MAX_KIQ_REG_TRY) { 104 105 msleep(MAX_KIQ_REG_BAILOUT_INTERVAL); 106 r = amdgpu_fence_wait_polling(ring, seq, MAX_KIQ_REG_WAIT); 107 } 108 109 if (cnt > MAX_KIQ_REG_TRY) 110 goto failed_kiq; 111 112 return; 113 114 failed_undo: 115 amdgpu_ring_undo(ring); 116 spin_unlock_irqrestore(&kiq->ring_lock, flags); 117 failed_kiq: 118 dev_err(adev->dev, "failed to write reg %x wait reg %x\n", reg0, reg1); 119 } 120 121 /** 122 * amdgpu_virt_request_full_gpu() - request full gpu access 123 * @adev: amdgpu device. 124 * @init: is driver init time. 125 * When start to init/fini driver, first need to request full gpu access. 126 * Return: Zero if request success, otherwise will return error. 127 */ 128 int amdgpu_virt_request_full_gpu(struct amdgpu_device *adev, bool init) 129 { 130 struct amdgpu_virt *virt = &adev->virt; 131 int r; 132 133 if (virt->ops && virt->ops->req_full_gpu) { 134 r = virt->ops->req_full_gpu(adev, init); 135 if (r) 136 return r; 137 138 adev->virt.caps &= ~AMDGPU_SRIOV_CAPS_RUNTIME; 139 } 140 141 return 0; 142 } 143 144 /** 145 * amdgpu_virt_release_full_gpu() - release full gpu access 146 * @adev: amdgpu device. 147 * @init: is driver init time. 148 * When finishing driver init/fini, need to release full gpu access. 149 * Return: Zero if release success, otherwise will returen error. 150 */ 151 int amdgpu_virt_release_full_gpu(struct amdgpu_device *adev, bool init) 152 { 153 struct amdgpu_virt *virt = &adev->virt; 154 int r; 155 156 if (virt->ops && virt->ops->rel_full_gpu) { 157 r = virt->ops->rel_full_gpu(adev, init); 158 if (r) 159 return r; 160 161 adev->virt.caps |= AMDGPU_SRIOV_CAPS_RUNTIME; 162 } 163 return 0; 164 } 165 166 /** 167 * amdgpu_virt_reset_gpu() - reset gpu 168 * @adev: amdgpu device. 169 * Send reset command to GPU hypervisor to reset GPU that VM is using 170 * Return: Zero if reset success, otherwise will return error. 171 */ 172 int amdgpu_virt_reset_gpu(struct amdgpu_device *adev) 173 { 174 struct amdgpu_virt *virt = &adev->virt; 175 int r; 176 177 if (virt->ops && virt->ops->reset_gpu) { 178 r = virt->ops->reset_gpu(adev); 179 if (r) 180 return r; 181 182 adev->virt.caps &= ~AMDGPU_SRIOV_CAPS_RUNTIME; 183 } 184 185 return 0; 186 } 187 188 void amdgpu_virt_request_init_data(struct amdgpu_device *adev) 189 { 190 struct amdgpu_virt *virt = &adev->virt; 191 192 if (virt->ops && virt->ops->req_init_data) 193 virt->ops->req_init_data(adev); 194 195 if (adev->virt.req_init_data_ver > 0) 196 DRM_INFO("host supports REQ_INIT_DATA handshake\n"); 197 else 198 DRM_WARN("host doesn't support REQ_INIT_DATA handshake\n"); 199 } 200 201 /** 202 * amdgpu_virt_wait_reset() - wait for reset gpu completed 203 * @adev: amdgpu device. 204 * Wait for GPU reset completed. 205 * Return: Zero if reset success, otherwise will return error. 206 */ 207 int amdgpu_virt_wait_reset(struct amdgpu_device *adev) 208 { 209 struct amdgpu_virt *virt = &adev->virt; 210 211 if (!virt->ops || !virt->ops->wait_reset) 212 return -EINVAL; 213 214 return virt->ops->wait_reset(adev); 215 } 216 217 /** 218 * amdgpu_virt_alloc_mm_table() - alloc memory for mm table 219 * @adev: amdgpu device. 220 * MM table is used by UVD and VCE for its initialization 221 * Return: Zero if allocate success. 222 */ 223 int amdgpu_virt_alloc_mm_table(struct amdgpu_device *adev) 224 { 225 int r; 226 227 if (!amdgpu_sriov_vf(adev) || adev->virt.mm_table.gpu_addr) 228 return 0; 229 230 r = amdgpu_bo_create_kernel(adev, PAGE_SIZE, PAGE_SIZE, 231 AMDGPU_GEM_DOMAIN_VRAM, 232 &adev->virt.mm_table.bo, 233 &adev->virt.mm_table.gpu_addr, 234 (void *)&adev->virt.mm_table.cpu_addr); 235 if (r) { 236 DRM_ERROR("failed to alloc mm table and error = %d.\n", r); 237 return r; 238 } 239 240 memset((void *)adev->virt.mm_table.cpu_addr, 0, PAGE_SIZE); 241 DRM_INFO("MM table gpu addr = 0x%llx, cpu addr = %p.\n", 242 adev->virt.mm_table.gpu_addr, 243 adev->virt.mm_table.cpu_addr); 244 return 0; 245 } 246 247 /** 248 * amdgpu_virt_free_mm_table() - free mm table memory 249 * @adev: amdgpu device. 250 * Free MM table memory 251 */ 252 void amdgpu_virt_free_mm_table(struct amdgpu_device *adev) 253 { 254 if (!amdgpu_sriov_vf(adev) || !adev->virt.mm_table.gpu_addr) 255 return; 256 257 amdgpu_bo_free_kernel(&adev->virt.mm_table.bo, 258 &adev->virt.mm_table.gpu_addr, 259 (void *)&adev->virt.mm_table.cpu_addr); 260 adev->virt.mm_table.gpu_addr = 0; 261 } 262 263 264 unsigned int amd_sriov_msg_checksum(void *obj, 265 unsigned long obj_size, 266 unsigned int key, 267 unsigned int checksum) 268 { 269 unsigned int ret = key; 270 unsigned long i = 0; 271 unsigned char *pos; 272 273 pos = (char *)obj; 274 /* calculate checksum */ 275 for (i = 0; i < obj_size; ++i) 276 ret += *(pos + i); 277 /* minus the checksum itself */ 278 pos = (char *)&checksum; 279 for (i = 0; i < sizeof(checksum); ++i) 280 ret -= *(pos + i); 281 return ret; 282 } 283 284 static int amdgpu_virt_init_ras_err_handler_data(struct amdgpu_device *adev) 285 { 286 struct amdgpu_virt *virt = &adev->virt; 287 struct amdgpu_virt_ras_err_handler_data **data = &virt->virt_eh_data; 288 /* GPU will be marked bad on host if bp count more then 10, 289 * so alloc 512 is enough. 290 */ 291 unsigned int align_space = 512; 292 void *bps = NULL; 293 struct amdgpu_bo **bps_bo = NULL; 294 295 *data = kmalloc(sizeof(struct amdgpu_virt_ras_err_handler_data), GFP_KERNEL); 296 if (!*data) 297 goto data_failure; 298 299 bps = kmalloc_array(align_space, sizeof((*data)->bps), GFP_KERNEL); 300 if (!bps) 301 goto bps_failure; 302 303 bps_bo = kmalloc_array(align_space, sizeof((*data)->bps_bo), GFP_KERNEL); 304 if (!bps_bo) 305 goto bps_bo_failure; 306 307 (*data)->bps = bps; 308 (*data)->bps_bo = bps_bo; 309 (*data)->count = 0; 310 (*data)->last_reserved = 0; 311 312 virt->ras_init_done = true; 313 314 return 0; 315 316 bps_bo_failure: 317 kfree(bps); 318 bps_failure: 319 kfree(*data); 320 data_failure: 321 return -ENOMEM; 322 } 323 324 static void amdgpu_virt_ras_release_bp(struct amdgpu_device *adev) 325 { 326 struct amdgpu_virt *virt = &adev->virt; 327 struct amdgpu_virt_ras_err_handler_data *data = virt->virt_eh_data; 328 struct amdgpu_bo *bo; 329 int i; 330 331 if (!data) 332 return; 333 334 for (i = data->last_reserved - 1; i >= 0; i--) { 335 bo = data->bps_bo[i]; 336 amdgpu_bo_free_kernel(&bo, NULL, NULL); 337 data->bps_bo[i] = bo; 338 data->last_reserved = i; 339 } 340 } 341 342 void amdgpu_virt_release_ras_err_handler_data(struct amdgpu_device *adev) 343 { 344 struct amdgpu_virt *virt = &adev->virt; 345 struct amdgpu_virt_ras_err_handler_data *data = virt->virt_eh_data; 346 347 virt->ras_init_done = false; 348 349 if (!data) 350 return; 351 352 amdgpu_virt_ras_release_bp(adev); 353 354 kfree(data->bps); 355 kfree(data->bps_bo); 356 kfree(data); 357 virt->virt_eh_data = NULL; 358 } 359 360 static void amdgpu_virt_ras_add_bps(struct amdgpu_device *adev, 361 struct eeprom_table_record *bps, int pages) 362 { 363 struct amdgpu_virt *virt = &adev->virt; 364 struct amdgpu_virt_ras_err_handler_data *data = virt->virt_eh_data; 365 366 if (!data) 367 return; 368 369 memcpy(&data->bps[data->count], bps, pages * sizeof(*data->bps)); 370 data->count += pages; 371 } 372 373 static void amdgpu_virt_ras_reserve_bps(struct amdgpu_device *adev) 374 { 375 struct amdgpu_virt *virt = &adev->virt; 376 struct amdgpu_virt_ras_err_handler_data *data = virt->virt_eh_data; 377 struct amdgpu_bo *bo = NULL; 378 uint64_t bp; 379 int i; 380 381 if (!data) 382 return; 383 384 for (i = data->last_reserved; i < data->count; i++) { 385 bp = data->bps[i].retired_page; 386 387 /* There are two cases of reserve error should be ignored: 388 * 1) a ras bad page has been allocated (used by someone); 389 * 2) a ras bad page has been reserved (duplicate error injection 390 * for one page); 391 */ 392 if (amdgpu_bo_create_kernel_at(adev, bp << AMDGPU_GPU_PAGE_SHIFT, 393 AMDGPU_GPU_PAGE_SIZE, 394 AMDGPU_GEM_DOMAIN_VRAM, 395 &bo, NULL)) 396 DRM_DEBUG("RAS WARN: reserve vram for retired page %llx fail\n", bp); 397 398 data->bps_bo[i] = bo; 399 data->last_reserved = i + 1; 400 bo = NULL; 401 } 402 } 403 404 static bool amdgpu_virt_ras_check_bad_page(struct amdgpu_device *adev, 405 uint64_t retired_page) 406 { 407 struct amdgpu_virt *virt = &adev->virt; 408 struct amdgpu_virt_ras_err_handler_data *data = virt->virt_eh_data; 409 int i; 410 411 if (!data) 412 return true; 413 414 for (i = 0; i < data->count; i++) 415 if (retired_page == data->bps[i].retired_page) 416 return true; 417 418 return false; 419 } 420 421 static void amdgpu_virt_add_bad_page(struct amdgpu_device *adev, 422 uint64_t bp_block_offset, uint32_t bp_block_size) 423 { 424 struct eeprom_table_record bp; 425 uint64_t retired_page; 426 uint32_t bp_idx, bp_cnt; 427 428 if (bp_block_size) { 429 bp_cnt = bp_block_size / sizeof(uint64_t); 430 for (bp_idx = 0; bp_idx < bp_cnt; bp_idx++) { 431 retired_page = *(uint64_t *)(adev->mman.fw_vram_usage_va + 432 bp_block_offset + bp_idx * sizeof(uint64_t)); 433 bp.retired_page = retired_page; 434 435 if (amdgpu_virt_ras_check_bad_page(adev, retired_page)) 436 continue; 437 438 amdgpu_virt_ras_add_bps(adev, &bp, 1); 439 440 amdgpu_virt_ras_reserve_bps(adev); 441 } 442 } 443 } 444 445 static int amdgpu_virt_read_pf2vf_data(struct amdgpu_device *adev) 446 { 447 struct amd_sriov_msg_pf2vf_info_header *pf2vf_info = adev->virt.fw_reserve.p_pf2vf; 448 uint32_t checksum; 449 uint32_t checkval; 450 451 uint32_t i; 452 uint32_t tmp; 453 454 if (adev->virt.fw_reserve.p_pf2vf == NULL) 455 return -EINVAL; 456 457 if (pf2vf_info->size > 1024) { 458 DRM_ERROR("invalid pf2vf message size\n"); 459 return -EINVAL; 460 } 461 462 switch (pf2vf_info->version) { 463 case 1: 464 checksum = ((struct amdgim_pf2vf_info_v1 *)pf2vf_info)->checksum; 465 checkval = amd_sriov_msg_checksum( 466 adev->virt.fw_reserve.p_pf2vf, pf2vf_info->size, 467 adev->virt.fw_reserve.checksum_key, checksum); 468 if (checksum != checkval) { 469 DRM_ERROR("invalid pf2vf message\n"); 470 return -EINVAL; 471 } 472 473 adev->virt.gim_feature = 474 ((struct amdgim_pf2vf_info_v1 *)pf2vf_info)->feature_flags; 475 break; 476 case 2: 477 /* TODO: missing key, need to add it later */ 478 checksum = ((struct amd_sriov_msg_pf2vf_info *)pf2vf_info)->checksum; 479 checkval = amd_sriov_msg_checksum( 480 adev->virt.fw_reserve.p_pf2vf, pf2vf_info->size, 481 0, checksum); 482 if (checksum != checkval) { 483 DRM_ERROR("invalid pf2vf message\n"); 484 return -EINVAL; 485 } 486 487 adev->virt.vf2pf_update_interval_ms = 488 ((struct amd_sriov_msg_pf2vf_info *)pf2vf_info)->vf2pf_update_interval_ms; 489 adev->virt.gim_feature = 490 ((struct amd_sriov_msg_pf2vf_info *)pf2vf_info)->feature_flags.all; 491 adev->virt.reg_access = 492 ((struct amd_sriov_msg_pf2vf_info *)pf2vf_info)->reg_access_flags.all; 493 494 adev->virt.decode_max_dimension_pixels = 0; 495 adev->virt.decode_max_frame_pixels = 0; 496 adev->virt.encode_max_dimension_pixels = 0; 497 adev->virt.encode_max_frame_pixels = 0; 498 adev->virt.is_mm_bw_enabled = false; 499 for (i = 0; i < AMD_SRIOV_MSG_RESERVE_VCN_INST; i++) { 500 tmp = ((struct amd_sriov_msg_pf2vf_info *)pf2vf_info)->mm_bw_management[i].decode_max_dimension_pixels; 501 adev->virt.decode_max_dimension_pixels = max(tmp, adev->virt.decode_max_dimension_pixels); 502 503 tmp = ((struct amd_sriov_msg_pf2vf_info *)pf2vf_info)->mm_bw_management[i].decode_max_frame_pixels; 504 adev->virt.decode_max_frame_pixels = max(tmp, adev->virt.decode_max_frame_pixels); 505 506 tmp = ((struct amd_sriov_msg_pf2vf_info *)pf2vf_info)->mm_bw_management[i].encode_max_dimension_pixels; 507 adev->virt.encode_max_dimension_pixels = max(tmp, adev->virt.encode_max_dimension_pixels); 508 509 tmp = ((struct amd_sriov_msg_pf2vf_info *)pf2vf_info)->mm_bw_management[i].encode_max_frame_pixels; 510 adev->virt.encode_max_frame_pixels = max(tmp, adev->virt.encode_max_frame_pixels); 511 } 512 if((adev->virt.decode_max_dimension_pixels > 0) || (adev->virt.encode_max_dimension_pixels > 0)) 513 adev->virt.is_mm_bw_enabled = true; 514 515 adev->unique_id = 516 ((struct amd_sriov_msg_pf2vf_info *)pf2vf_info)->uuid; 517 break; 518 default: 519 DRM_ERROR("invalid pf2vf version\n"); 520 return -EINVAL; 521 } 522 523 /* correct too large or too little interval value */ 524 if (adev->virt.vf2pf_update_interval_ms < 200 || adev->virt.vf2pf_update_interval_ms > 10000) 525 adev->virt.vf2pf_update_interval_ms = 2000; 526 527 return 0; 528 } 529 530 static void amdgpu_virt_populate_vf2pf_ucode_info(struct amdgpu_device *adev) 531 { 532 struct amd_sriov_msg_vf2pf_info *vf2pf_info; 533 vf2pf_info = (struct amd_sriov_msg_vf2pf_info *) adev->virt.fw_reserve.p_vf2pf; 534 535 if (adev->virt.fw_reserve.p_vf2pf == NULL) 536 return; 537 538 POPULATE_UCODE_INFO(vf2pf_info, AMD_SRIOV_UCODE_ID_VCE, adev->vce.fw_version); 539 POPULATE_UCODE_INFO(vf2pf_info, AMD_SRIOV_UCODE_ID_UVD, adev->uvd.fw_version); 540 POPULATE_UCODE_INFO(vf2pf_info, AMD_SRIOV_UCODE_ID_MC, adev->gmc.fw_version); 541 POPULATE_UCODE_INFO(vf2pf_info, AMD_SRIOV_UCODE_ID_ME, adev->gfx.me_fw_version); 542 POPULATE_UCODE_INFO(vf2pf_info, AMD_SRIOV_UCODE_ID_PFP, adev->gfx.pfp_fw_version); 543 POPULATE_UCODE_INFO(vf2pf_info, AMD_SRIOV_UCODE_ID_CE, adev->gfx.ce_fw_version); 544 POPULATE_UCODE_INFO(vf2pf_info, AMD_SRIOV_UCODE_ID_RLC, adev->gfx.rlc_fw_version); 545 POPULATE_UCODE_INFO(vf2pf_info, AMD_SRIOV_UCODE_ID_RLC_SRLC, adev->gfx.rlc_srlc_fw_version); 546 POPULATE_UCODE_INFO(vf2pf_info, AMD_SRIOV_UCODE_ID_RLC_SRLG, adev->gfx.rlc_srlg_fw_version); 547 POPULATE_UCODE_INFO(vf2pf_info, AMD_SRIOV_UCODE_ID_RLC_SRLS, adev->gfx.rlc_srls_fw_version); 548 POPULATE_UCODE_INFO(vf2pf_info, AMD_SRIOV_UCODE_ID_MEC, adev->gfx.mec_fw_version); 549 POPULATE_UCODE_INFO(vf2pf_info, AMD_SRIOV_UCODE_ID_MEC2, adev->gfx.mec2_fw_version); 550 POPULATE_UCODE_INFO(vf2pf_info, AMD_SRIOV_UCODE_ID_SOS, adev->psp.sos.fw_version); 551 POPULATE_UCODE_INFO(vf2pf_info, AMD_SRIOV_UCODE_ID_ASD, 552 adev->psp.asd_context.bin_desc.fw_version); 553 POPULATE_UCODE_INFO(vf2pf_info, AMD_SRIOV_UCODE_ID_TA_RAS, 554 adev->psp.ras_context.context.bin_desc.fw_version); 555 POPULATE_UCODE_INFO(vf2pf_info, AMD_SRIOV_UCODE_ID_TA_XGMI, 556 adev->psp.xgmi_context.context.bin_desc.fw_version); 557 POPULATE_UCODE_INFO(vf2pf_info, AMD_SRIOV_UCODE_ID_SMC, adev->pm.fw_version); 558 POPULATE_UCODE_INFO(vf2pf_info, AMD_SRIOV_UCODE_ID_SDMA, adev->sdma.instance[0].fw_version); 559 POPULATE_UCODE_INFO(vf2pf_info, AMD_SRIOV_UCODE_ID_SDMA2, adev->sdma.instance[1].fw_version); 560 POPULATE_UCODE_INFO(vf2pf_info, AMD_SRIOV_UCODE_ID_VCN, adev->vcn.fw_version); 561 POPULATE_UCODE_INFO(vf2pf_info, AMD_SRIOV_UCODE_ID_DMCU, adev->dm.dmcu_fw_version); 562 } 563 564 static int amdgpu_virt_write_vf2pf_data(struct amdgpu_device *adev) 565 { 566 struct amd_sriov_msg_vf2pf_info *vf2pf_info; 567 568 vf2pf_info = (struct amd_sriov_msg_vf2pf_info *) adev->virt.fw_reserve.p_vf2pf; 569 570 if (adev->virt.fw_reserve.p_vf2pf == NULL) 571 return -EINVAL; 572 573 memset(vf2pf_info, 0, sizeof(struct amd_sriov_msg_vf2pf_info)); 574 575 vf2pf_info->header.size = sizeof(struct amd_sriov_msg_vf2pf_info); 576 vf2pf_info->header.version = AMD_SRIOV_MSG_FW_VRAM_VF2PF_VER; 577 578 #ifdef MODULE 579 if (THIS_MODULE->version != NULL) 580 strcpy(vf2pf_info->driver_version, THIS_MODULE->version); 581 else 582 #endif 583 strcpy(vf2pf_info->driver_version, "N/A"); 584 585 vf2pf_info->pf2vf_version_required = 0; // no requirement, guest understands all 586 vf2pf_info->driver_cert = 0; 587 vf2pf_info->os_info.all = 0; 588 589 vf2pf_info->fb_usage = 590 ttm_resource_manager_usage(&adev->mman.vram_mgr.manager) >> 20; 591 vf2pf_info->fb_vis_usage = 592 amdgpu_vram_mgr_vis_usage(&adev->mman.vram_mgr) >> 20; 593 vf2pf_info->fb_size = adev->gmc.real_vram_size >> 20; 594 vf2pf_info->fb_vis_size = adev->gmc.visible_vram_size >> 20; 595 596 amdgpu_virt_populate_vf2pf_ucode_info(adev); 597 598 /* TODO: read dynamic info */ 599 vf2pf_info->gfx_usage = 0; 600 vf2pf_info->compute_usage = 0; 601 vf2pf_info->encode_usage = 0; 602 vf2pf_info->decode_usage = 0; 603 604 vf2pf_info->dummy_page_addr = (uint64_t)adev->dummy_page_addr; 605 vf2pf_info->checksum = 606 amd_sriov_msg_checksum( 607 vf2pf_info, vf2pf_info->header.size, 0, 0); 608 609 return 0; 610 } 611 612 static void amdgpu_virt_update_vf2pf_work_item(struct work_struct *work) 613 { 614 struct amdgpu_device *adev = container_of(work, struct amdgpu_device, virt.vf2pf_work.work); 615 int ret; 616 617 ret = amdgpu_virt_read_pf2vf_data(adev); 618 if (ret) 619 goto out; 620 amdgpu_virt_write_vf2pf_data(adev); 621 622 out: 623 schedule_delayed_work(&(adev->virt.vf2pf_work), adev->virt.vf2pf_update_interval_ms); 624 } 625 626 void amdgpu_virt_fini_data_exchange(struct amdgpu_device *adev) 627 { 628 if (adev->virt.vf2pf_update_interval_ms != 0) { 629 DRM_INFO("clean up the vf2pf work item\n"); 630 cancel_delayed_work_sync(&adev->virt.vf2pf_work); 631 adev->virt.vf2pf_update_interval_ms = 0; 632 } 633 } 634 635 void amdgpu_virt_init_data_exchange(struct amdgpu_device *adev) 636 { 637 adev->virt.fw_reserve.p_pf2vf = NULL; 638 adev->virt.fw_reserve.p_vf2pf = NULL; 639 adev->virt.vf2pf_update_interval_ms = 0; 640 641 if (adev->mman.fw_vram_usage_va != NULL) { 642 /* go through this logic in ip_init and reset to init workqueue*/ 643 amdgpu_virt_exchange_data(adev); 644 645 INIT_DELAYED_WORK(&adev->virt.vf2pf_work, amdgpu_virt_update_vf2pf_work_item); 646 schedule_delayed_work(&(adev->virt.vf2pf_work), msecs_to_jiffies(adev->virt.vf2pf_update_interval_ms)); 647 } else if (adev->bios != NULL) { 648 /* got through this logic in early init stage to get necessary flags, e.g. rlcg_acc related*/ 649 adev->virt.fw_reserve.p_pf2vf = 650 (struct amd_sriov_msg_pf2vf_info_header *) 651 (adev->bios + (AMD_SRIOV_MSG_PF2VF_OFFSET_KB << 10)); 652 653 amdgpu_virt_read_pf2vf_data(adev); 654 } 655 } 656 657 658 void amdgpu_virt_exchange_data(struct amdgpu_device *adev) 659 { 660 uint64_t bp_block_offset = 0; 661 uint32_t bp_block_size = 0; 662 struct amd_sriov_msg_pf2vf_info *pf2vf_v2 = NULL; 663 664 if (adev->mman.fw_vram_usage_va != NULL) { 665 666 adev->virt.fw_reserve.p_pf2vf = 667 (struct amd_sriov_msg_pf2vf_info_header *) 668 (adev->mman.fw_vram_usage_va + (AMD_SRIOV_MSG_PF2VF_OFFSET_KB << 10)); 669 adev->virt.fw_reserve.p_vf2pf = 670 (struct amd_sriov_msg_vf2pf_info_header *) 671 (adev->mman.fw_vram_usage_va + (AMD_SRIOV_MSG_VF2PF_OFFSET_KB << 10)); 672 673 amdgpu_virt_read_pf2vf_data(adev); 674 amdgpu_virt_write_vf2pf_data(adev); 675 676 /* bad page handling for version 2 */ 677 if (adev->virt.fw_reserve.p_pf2vf->version == 2) { 678 pf2vf_v2 = (struct amd_sriov_msg_pf2vf_info *)adev->virt.fw_reserve.p_pf2vf; 679 680 bp_block_offset = ((uint64_t)pf2vf_v2->bp_block_offset_low & 0xFFFFFFFF) | 681 ((((uint64_t)pf2vf_v2->bp_block_offset_high) << 32) & 0xFFFFFFFF00000000); 682 bp_block_size = pf2vf_v2->bp_block_size; 683 684 if (bp_block_size && !adev->virt.ras_init_done) 685 amdgpu_virt_init_ras_err_handler_data(adev); 686 687 if (adev->virt.ras_init_done) 688 amdgpu_virt_add_bad_page(adev, bp_block_offset, bp_block_size); 689 } 690 } 691 } 692 693 void amdgpu_detect_virtualization(struct amdgpu_device *adev) 694 { 695 uint32_t reg; 696 697 switch (adev->asic_type) { 698 case CHIP_TONGA: 699 case CHIP_FIJI: 700 reg = RREG32(mmBIF_IOV_FUNC_IDENTIFIER); 701 break; 702 case CHIP_VEGA10: 703 case CHIP_VEGA20: 704 case CHIP_NAVI10: 705 case CHIP_NAVI12: 706 case CHIP_SIENNA_CICHLID: 707 case CHIP_ARCTURUS: 708 case CHIP_ALDEBARAN: 709 case CHIP_IP_DISCOVERY: 710 reg = RREG32(mmRCC_IOV_FUNC_IDENTIFIER); 711 break; 712 default: /* other chip doesn't support SRIOV */ 713 reg = 0; 714 break; 715 } 716 717 if (reg & 1) 718 adev->virt.caps |= AMDGPU_SRIOV_CAPS_IS_VF; 719 720 if (reg & 0x80000000) 721 adev->virt.caps |= AMDGPU_SRIOV_CAPS_ENABLE_IOV; 722 723 if (!reg) { 724 /* passthrough mode exclus sriov mod */ 725 if (is_virtual_machine() && !xen_initial_domain()) 726 adev->virt.caps |= AMDGPU_PASSTHROUGH_MODE; 727 } 728 729 /* we have the ability to check now */ 730 if (amdgpu_sriov_vf(adev)) { 731 switch (adev->asic_type) { 732 case CHIP_TONGA: 733 case CHIP_FIJI: 734 vi_set_virt_ops(adev); 735 break; 736 case CHIP_VEGA10: 737 soc15_set_virt_ops(adev); 738 #ifdef CONFIG_X86 739 /* not send GPU_INIT_DATA with MS_HYPERV*/ 740 if (!hypervisor_is_type(X86_HYPER_MS_HYPERV)) 741 #endif 742 /* send a dummy GPU_INIT_DATA request to host on vega10 */ 743 amdgpu_virt_request_init_data(adev); 744 break; 745 case CHIP_VEGA20: 746 case CHIP_ARCTURUS: 747 case CHIP_ALDEBARAN: 748 soc15_set_virt_ops(adev); 749 break; 750 case CHIP_NAVI10: 751 case CHIP_NAVI12: 752 case CHIP_SIENNA_CICHLID: 753 case CHIP_IP_DISCOVERY: 754 nv_set_virt_ops(adev); 755 /* try send GPU_INIT_DATA request to host */ 756 amdgpu_virt_request_init_data(adev); 757 break; 758 default: /* other chip doesn't support SRIOV */ 759 DRM_ERROR("Unknown asic type: %d!\n", adev->asic_type); 760 break; 761 } 762 } 763 } 764 765 static bool amdgpu_virt_access_debugfs_is_mmio(struct amdgpu_device *adev) 766 { 767 return amdgpu_sriov_is_debug(adev) ? true : false; 768 } 769 770 static bool amdgpu_virt_access_debugfs_is_kiq(struct amdgpu_device *adev) 771 { 772 return amdgpu_sriov_is_normal(adev) ? true : false; 773 } 774 775 int amdgpu_virt_enable_access_debugfs(struct amdgpu_device *adev) 776 { 777 if (!amdgpu_sriov_vf(adev) || 778 amdgpu_virt_access_debugfs_is_kiq(adev)) 779 return 0; 780 781 if (amdgpu_virt_access_debugfs_is_mmio(adev)) 782 adev->virt.caps &= ~AMDGPU_SRIOV_CAPS_RUNTIME; 783 else 784 return -EPERM; 785 786 return 0; 787 } 788 789 void amdgpu_virt_disable_access_debugfs(struct amdgpu_device *adev) 790 { 791 if (amdgpu_sriov_vf(adev)) 792 adev->virt.caps |= AMDGPU_SRIOV_CAPS_RUNTIME; 793 } 794 795 enum amdgpu_sriov_vf_mode amdgpu_virt_get_sriov_vf_mode(struct amdgpu_device *adev) 796 { 797 enum amdgpu_sriov_vf_mode mode; 798 799 if (amdgpu_sriov_vf(adev)) { 800 if (amdgpu_sriov_is_pp_one_vf(adev)) 801 mode = SRIOV_VF_MODE_ONE_VF; 802 else 803 mode = SRIOV_VF_MODE_MULTI_VF; 804 } else { 805 mode = SRIOV_VF_MODE_BARE_METAL; 806 } 807 808 return mode; 809 } 810 811 bool amdgpu_virt_fw_load_skip_check(struct amdgpu_device *adev, uint32_t ucode_id) 812 { 813 switch (adev->ip_versions[MP0_HWIP][0]) { 814 case IP_VERSION(13, 0, 0): 815 /* no vf autoload, white list */ 816 if (ucode_id == AMDGPU_UCODE_ID_VCN1 || 817 ucode_id == AMDGPU_UCODE_ID_VCN) 818 return false; 819 else 820 return true; 821 case IP_VERSION(13, 0, 10): 822 /* white list */ 823 if (ucode_id == AMDGPU_UCODE_ID_CAP 824 || ucode_id == AMDGPU_UCODE_ID_CP_RS64_PFP 825 || ucode_id == AMDGPU_UCODE_ID_CP_RS64_ME 826 || ucode_id == AMDGPU_UCODE_ID_CP_RS64_MEC 827 || ucode_id == AMDGPU_UCODE_ID_CP_RS64_PFP_P0_STACK 828 || ucode_id == AMDGPU_UCODE_ID_CP_RS64_PFP_P1_STACK 829 || ucode_id == AMDGPU_UCODE_ID_CP_RS64_ME_P0_STACK 830 || ucode_id == AMDGPU_UCODE_ID_CP_RS64_ME_P1_STACK 831 || ucode_id == AMDGPU_UCODE_ID_CP_RS64_MEC_P0_STACK 832 || ucode_id == AMDGPU_UCODE_ID_CP_RS64_MEC_P1_STACK 833 || ucode_id == AMDGPU_UCODE_ID_CP_RS64_MEC_P2_STACK 834 || ucode_id == AMDGPU_UCODE_ID_CP_RS64_MEC_P3_STACK 835 || ucode_id == AMDGPU_UCODE_ID_CP_MES 836 || ucode_id == AMDGPU_UCODE_ID_CP_MES_DATA 837 || ucode_id == AMDGPU_UCODE_ID_CP_MES1 838 || ucode_id == AMDGPU_UCODE_ID_CP_MES1_DATA 839 || ucode_id == AMDGPU_UCODE_ID_VCN1 840 || ucode_id == AMDGPU_UCODE_ID_VCN) 841 return false; 842 else 843 return true; 844 default: 845 /* lagacy black list */ 846 if (ucode_id == AMDGPU_UCODE_ID_SDMA0 847 || ucode_id == AMDGPU_UCODE_ID_SDMA1 848 || ucode_id == AMDGPU_UCODE_ID_SDMA2 849 || ucode_id == AMDGPU_UCODE_ID_SDMA3 850 || ucode_id == AMDGPU_UCODE_ID_SDMA4 851 || ucode_id == AMDGPU_UCODE_ID_SDMA5 852 || ucode_id == AMDGPU_UCODE_ID_SDMA6 853 || ucode_id == AMDGPU_UCODE_ID_SDMA7 854 || ucode_id == AMDGPU_UCODE_ID_RLC_G 855 || ucode_id == AMDGPU_UCODE_ID_RLC_RESTORE_LIST_CNTL 856 || ucode_id == AMDGPU_UCODE_ID_RLC_RESTORE_LIST_GPM_MEM 857 || ucode_id == AMDGPU_UCODE_ID_RLC_RESTORE_LIST_SRM_MEM 858 || ucode_id == AMDGPU_UCODE_ID_SMC) 859 return true; 860 else 861 return false; 862 } 863 } 864 865 void amdgpu_virt_update_sriov_video_codec(struct amdgpu_device *adev, 866 struct amdgpu_video_codec_info *encode, uint32_t encode_array_size, 867 struct amdgpu_video_codec_info *decode, uint32_t decode_array_size) 868 { 869 uint32_t i; 870 871 if (!adev->virt.is_mm_bw_enabled) 872 return; 873 874 if (encode) { 875 for (i = 0; i < encode_array_size; i++) { 876 encode[i].max_width = adev->virt.encode_max_dimension_pixels; 877 encode[i].max_pixels_per_frame = adev->virt.encode_max_frame_pixels; 878 if (encode[i].max_width > 0) 879 encode[i].max_height = encode[i].max_pixels_per_frame / encode[i].max_width; 880 else 881 encode[i].max_height = 0; 882 } 883 } 884 885 if (decode) { 886 for (i = 0; i < decode_array_size; i++) { 887 decode[i].max_width = adev->virt.decode_max_dimension_pixels; 888 decode[i].max_pixels_per_frame = adev->virt.decode_max_frame_pixels; 889 if (decode[i].max_width > 0) 890 decode[i].max_height = decode[i].max_pixels_per_frame / decode[i].max_width; 891 else 892 decode[i].max_height = 0; 893 } 894 } 895 } 896 897 static bool amdgpu_virt_get_rlcg_reg_access_flag(struct amdgpu_device *adev, 898 u32 acc_flags, u32 hwip, 899 bool write, u32 *rlcg_flag) 900 { 901 bool ret = false; 902 903 switch (hwip) { 904 case GC_HWIP: 905 if (amdgpu_sriov_reg_indirect_gc(adev)) { 906 *rlcg_flag = 907 write ? AMDGPU_RLCG_GC_WRITE : AMDGPU_RLCG_GC_READ; 908 ret = true; 909 /* only in new version, AMDGPU_REGS_NO_KIQ and 910 * AMDGPU_REGS_RLC are enabled simultaneously */ 911 } else if ((acc_flags & AMDGPU_REGS_RLC) && 912 !(acc_flags & AMDGPU_REGS_NO_KIQ) && write) { 913 *rlcg_flag = AMDGPU_RLCG_GC_WRITE_LEGACY; 914 ret = true; 915 } 916 break; 917 case MMHUB_HWIP: 918 if (amdgpu_sriov_reg_indirect_mmhub(adev) && 919 (acc_flags & AMDGPU_REGS_RLC) && write) { 920 *rlcg_flag = AMDGPU_RLCG_MMHUB_WRITE; 921 ret = true; 922 } 923 break; 924 default: 925 break; 926 } 927 return ret; 928 } 929 930 static u32 amdgpu_virt_rlcg_reg_rw(struct amdgpu_device *adev, u32 offset, u32 v, u32 flag) 931 { 932 struct amdgpu_rlcg_reg_access_ctrl *reg_access_ctrl; 933 uint32_t timeout = 50000; 934 uint32_t i, tmp; 935 uint32_t ret = 0; 936 void *scratch_reg0; 937 void *scratch_reg1; 938 void *scratch_reg2; 939 void *scratch_reg3; 940 void *spare_int; 941 942 if (!adev->gfx.rlc.rlcg_reg_access_supported) { 943 dev_err(adev->dev, 944 "indirect registers access through rlcg is not available\n"); 945 return 0; 946 } 947 948 reg_access_ctrl = &adev->gfx.rlc.reg_access_ctrl; 949 scratch_reg0 = (void __iomem *)adev->rmmio + 4 * reg_access_ctrl->scratch_reg0; 950 scratch_reg1 = (void __iomem *)adev->rmmio + 4 * reg_access_ctrl->scratch_reg1; 951 scratch_reg2 = (void __iomem *)adev->rmmio + 4 * reg_access_ctrl->scratch_reg2; 952 scratch_reg3 = (void __iomem *)adev->rmmio + 4 * reg_access_ctrl->scratch_reg3; 953 if (reg_access_ctrl->spare_int) 954 spare_int = (void __iomem *)adev->rmmio + 4 * reg_access_ctrl->spare_int; 955 956 if (offset == reg_access_ctrl->grbm_cntl) { 957 /* if the target reg offset is grbm_cntl, write to scratch_reg2 */ 958 writel(v, scratch_reg2); 959 writel(v, ((void __iomem *)adev->rmmio) + (offset * 4)); 960 } else if (offset == reg_access_ctrl->grbm_idx) { 961 /* if the target reg offset is grbm_idx, write to scratch_reg3 */ 962 writel(v, scratch_reg3); 963 writel(v, ((void __iomem *)adev->rmmio) + (offset * 4)); 964 } else { 965 /* 966 * SCRATCH_REG0 = read/write value 967 * SCRATCH_REG1[30:28] = command 968 * SCRATCH_REG1[19:0] = address in dword 969 * SCRATCH_REG1[26:24] = Error reporting 970 */ 971 writel(v, scratch_reg0); 972 writel((offset | flag), scratch_reg1); 973 if (reg_access_ctrl->spare_int) 974 writel(1, spare_int); 975 976 for (i = 0; i < timeout; i++) { 977 tmp = readl(scratch_reg1); 978 if (!(tmp & AMDGPU_RLCG_SCRATCH1_ADDRESS_MASK)) 979 break; 980 udelay(10); 981 } 982 983 if (i >= timeout) { 984 if (amdgpu_sriov_rlcg_error_report_enabled(adev)) { 985 if (tmp & AMDGPU_RLCG_VFGATE_DISABLED) { 986 dev_err(adev->dev, 987 "vfgate is disabled, rlcg failed to program reg: 0x%05x\n", offset); 988 } else if (tmp & AMDGPU_RLCG_WRONG_OPERATION_TYPE) { 989 dev_err(adev->dev, 990 "wrong operation type, rlcg failed to program reg: 0x%05x\n", offset); 991 } else if (tmp & AMDGPU_RLCG_REG_NOT_IN_RANGE) { 992 dev_err(adev->dev, 993 "register is not in range, rlcg failed to program reg: 0x%05x\n", offset); 994 } else { 995 dev_err(adev->dev, 996 "unknown error type, rlcg failed to program reg: 0x%05x\n", offset); 997 } 998 } else { 999 dev_err(adev->dev, 1000 "timeout: rlcg faled to program reg: 0x%05x\n", offset); 1001 } 1002 } 1003 } 1004 1005 ret = readl(scratch_reg0); 1006 return ret; 1007 } 1008 1009 void amdgpu_sriov_wreg(struct amdgpu_device *adev, 1010 u32 offset, u32 value, 1011 u32 acc_flags, u32 hwip) 1012 { 1013 u32 rlcg_flag; 1014 1015 if (!amdgpu_sriov_runtime(adev) && 1016 amdgpu_virt_get_rlcg_reg_access_flag(adev, acc_flags, hwip, true, &rlcg_flag)) { 1017 amdgpu_virt_rlcg_reg_rw(adev, offset, value, rlcg_flag); 1018 return; 1019 } 1020 1021 if (acc_flags & AMDGPU_REGS_NO_KIQ) 1022 WREG32_NO_KIQ(offset, value); 1023 else 1024 WREG32(offset, value); 1025 } 1026 1027 u32 amdgpu_sriov_rreg(struct amdgpu_device *adev, 1028 u32 offset, u32 acc_flags, u32 hwip) 1029 { 1030 u32 rlcg_flag; 1031 1032 if (!amdgpu_sriov_runtime(adev) && 1033 amdgpu_virt_get_rlcg_reg_access_flag(adev, acc_flags, hwip, false, &rlcg_flag)) 1034 return amdgpu_virt_rlcg_reg_rw(adev, offset, 0, rlcg_flag); 1035 1036 if (acc_flags & AMDGPU_REGS_NO_KIQ) 1037 return RREG32_NO_KIQ(offset); 1038 else 1039 return RREG32(offset); 1040 } 1041