1 /* 2 * Copyright 2019 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 <linux/firmware.h> 24 #include <linux/pci.h> 25 #include "amdgpu.h" 26 #include "amdgpu_atomfirmware.h" 27 #include "gmc_v10_0.h" 28 29 #include "hdp/hdp_5_0_0_offset.h" 30 #include "hdp/hdp_5_0_0_sh_mask.h" 31 #include "gc/gc_10_1_0_sh_mask.h" 32 #include "mmhub/mmhub_2_0_0_sh_mask.h" 33 #include "dcn/dcn_2_0_0_offset.h" 34 #include "dcn/dcn_2_0_0_sh_mask.h" 35 #include "oss/osssys_5_0_0_offset.h" 36 #include "ivsrcid/vmc/irqsrcs_vmc_1_0.h" 37 #include "navi10_enum.h" 38 39 #include "soc15.h" 40 #include "soc15_common.h" 41 42 #include "nbio_v2_3.h" 43 44 #include "gfxhub_v2_0.h" 45 #include "mmhub_v2_0.h" 46 #include "athub_v2_0.h" 47 /* XXX Move this macro to navi10 header file, which is like vid.h for VI.*/ 48 #define AMDGPU_NUM_OF_VMIDS 8 49 50 #if 0 51 static const struct soc15_reg_golden golden_settings_navi10_hdp[] = 52 { 53 /* TODO add golden setting for hdp */ 54 }; 55 #endif 56 57 static int 58 gmc_v10_0_vm_fault_interrupt_state(struct amdgpu_device *adev, 59 struct amdgpu_irq_src *src, unsigned type, 60 enum amdgpu_interrupt_state state) 61 { 62 struct amdgpu_vmhub *hub; 63 u32 tmp, reg, bits[AMDGPU_MAX_VMHUBS], i; 64 65 bits[AMDGPU_GFXHUB_0] = GCVM_CONTEXT1_CNTL__RANGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | 66 GCVM_CONTEXT1_CNTL__DUMMY_PAGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | 67 GCVM_CONTEXT1_CNTL__PDE0_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | 68 GCVM_CONTEXT1_CNTL__VALID_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | 69 GCVM_CONTEXT1_CNTL__READ_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | 70 GCVM_CONTEXT1_CNTL__WRITE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | 71 GCVM_CONTEXT1_CNTL__EXECUTE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK; 72 73 bits[AMDGPU_MMHUB_0] = MMVM_CONTEXT1_CNTL__RANGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | 74 MMVM_CONTEXT1_CNTL__DUMMY_PAGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | 75 MMVM_CONTEXT1_CNTL__PDE0_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | 76 MMVM_CONTEXT1_CNTL__VALID_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | 77 MMVM_CONTEXT1_CNTL__READ_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | 78 MMVM_CONTEXT1_CNTL__WRITE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | 79 MMVM_CONTEXT1_CNTL__EXECUTE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK; 80 81 switch (state) { 82 case AMDGPU_IRQ_STATE_DISABLE: 83 /* MM HUB */ 84 hub = &adev->vmhub[AMDGPU_MMHUB_0]; 85 for (i = 0; i < 16; i++) { 86 reg = hub->vm_context0_cntl + i; 87 tmp = RREG32(reg); 88 tmp &= ~bits[AMDGPU_MMHUB_0]; 89 WREG32(reg, tmp); 90 } 91 92 /* GFX HUB */ 93 hub = &adev->vmhub[AMDGPU_GFXHUB_0]; 94 for (i = 0; i < 16; i++) { 95 reg = hub->vm_context0_cntl + i; 96 tmp = RREG32(reg); 97 tmp &= ~bits[AMDGPU_GFXHUB_0]; 98 WREG32(reg, tmp); 99 } 100 break; 101 case AMDGPU_IRQ_STATE_ENABLE: 102 /* MM HUB */ 103 hub = &adev->vmhub[AMDGPU_MMHUB_0]; 104 for (i = 0; i < 16; i++) { 105 reg = hub->vm_context0_cntl + i; 106 tmp = RREG32(reg); 107 tmp |= bits[AMDGPU_MMHUB_0]; 108 WREG32(reg, tmp); 109 } 110 111 /* GFX HUB */ 112 hub = &adev->vmhub[AMDGPU_GFXHUB_0]; 113 for (i = 0; i < 16; i++) { 114 reg = hub->vm_context0_cntl + i; 115 tmp = RREG32(reg); 116 tmp |= bits[AMDGPU_GFXHUB_0]; 117 WREG32(reg, tmp); 118 } 119 break; 120 default: 121 break; 122 } 123 124 return 0; 125 } 126 127 static int gmc_v10_0_process_interrupt(struct amdgpu_device *adev, 128 struct amdgpu_irq_src *source, 129 struct amdgpu_iv_entry *entry) 130 { 131 struct amdgpu_vmhub *hub = &adev->vmhub[entry->vmid_src]; 132 uint32_t status = 0; 133 u64 addr; 134 135 addr = (u64)entry->src_data[0] << 12; 136 addr |= ((u64)entry->src_data[1] & 0xf) << 44; 137 138 if (!amdgpu_sriov_vf(adev)) { 139 /* 140 * Issue a dummy read to wait for the status register to 141 * be updated to avoid reading an incorrect value due to 142 * the new fast GRBM interface. 143 */ 144 if (entry->vmid_src == AMDGPU_GFXHUB_0) 145 RREG32(hub->vm_l2_pro_fault_status); 146 147 status = RREG32(hub->vm_l2_pro_fault_status); 148 WREG32_P(hub->vm_l2_pro_fault_cntl, 1, ~1); 149 } 150 151 if (printk_ratelimit()) { 152 struct amdgpu_task_info task_info; 153 154 memset(&task_info, 0, sizeof(struct amdgpu_task_info)); 155 amdgpu_vm_get_task_info(adev, entry->pasid, &task_info); 156 157 dev_err(adev->dev, 158 "[%s] page fault (src_id:%u ring:%u vmid:%u pasid:%u, " 159 "for process %s pid %d thread %s pid %d)\n", 160 entry->vmid_src ? "mmhub" : "gfxhub", 161 entry->src_id, entry->ring_id, entry->vmid, 162 entry->pasid, task_info.process_name, task_info.tgid, 163 task_info.task_name, task_info.pid); 164 dev_err(adev->dev, " in page starting at address 0x%016llx from client %d\n", 165 addr, entry->client_id); 166 if (!amdgpu_sriov_vf(adev)) { 167 dev_err(adev->dev, 168 "GCVM_L2_PROTECTION_FAULT_STATUS:0x%08X\n", 169 status); 170 dev_err(adev->dev, "\t MORE_FAULTS: 0x%lx\n", 171 REG_GET_FIELD(status, 172 GCVM_L2_PROTECTION_FAULT_STATUS, MORE_FAULTS)); 173 dev_err(adev->dev, "\t WALKER_ERROR: 0x%lx\n", 174 REG_GET_FIELD(status, 175 GCVM_L2_PROTECTION_FAULT_STATUS, WALKER_ERROR)); 176 dev_err(adev->dev, "\t PERMISSION_FAULTS: 0x%lx\n", 177 REG_GET_FIELD(status, 178 GCVM_L2_PROTECTION_FAULT_STATUS, PERMISSION_FAULTS)); 179 dev_err(adev->dev, "\t MAPPING_ERROR: 0x%lx\n", 180 REG_GET_FIELD(status, 181 GCVM_L2_PROTECTION_FAULT_STATUS, MAPPING_ERROR)); 182 dev_err(adev->dev, "\t RW: 0x%lx\n", 183 REG_GET_FIELD(status, 184 GCVM_L2_PROTECTION_FAULT_STATUS, RW)); 185 } 186 } 187 188 return 0; 189 } 190 191 static const struct amdgpu_irq_src_funcs gmc_v10_0_irq_funcs = { 192 .set = gmc_v10_0_vm_fault_interrupt_state, 193 .process = gmc_v10_0_process_interrupt, 194 }; 195 196 static void gmc_v10_0_set_irq_funcs(struct amdgpu_device *adev) 197 { 198 adev->gmc.vm_fault.num_types = 1; 199 adev->gmc.vm_fault.funcs = &gmc_v10_0_irq_funcs; 200 } 201 202 static uint32_t gmc_v10_0_get_invalidate_req(unsigned int vmid, 203 uint32_t flush_type) 204 { 205 u32 req = 0; 206 207 /* invalidate using legacy mode on vmid*/ 208 req = REG_SET_FIELD(req, GCVM_INVALIDATE_ENG0_REQ, 209 PER_VMID_INVALIDATE_REQ, 1 << vmid); 210 req = REG_SET_FIELD(req, GCVM_INVALIDATE_ENG0_REQ, FLUSH_TYPE, flush_type); 211 req = REG_SET_FIELD(req, GCVM_INVALIDATE_ENG0_REQ, INVALIDATE_L2_PTES, 1); 212 req = REG_SET_FIELD(req, GCVM_INVALIDATE_ENG0_REQ, INVALIDATE_L2_PDE0, 1); 213 req = REG_SET_FIELD(req, GCVM_INVALIDATE_ENG0_REQ, INVALIDATE_L2_PDE1, 1); 214 req = REG_SET_FIELD(req, GCVM_INVALIDATE_ENG0_REQ, INVALIDATE_L2_PDE2, 1); 215 req = REG_SET_FIELD(req, GCVM_INVALIDATE_ENG0_REQ, INVALIDATE_L1_PTES, 1); 216 req = REG_SET_FIELD(req, GCVM_INVALIDATE_ENG0_REQ, 217 CLEAR_PROTECTION_FAULT_STATUS_ADDR, 0); 218 219 return req; 220 } 221 222 /* 223 * GART 224 * VMID 0 is the physical GPU addresses as used by the kernel. 225 * VMIDs 1-15 are used for userspace clients and are handled 226 * by the amdgpu vm/hsa code. 227 */ 228 229 static void gmc_v10_0_flush_vm_hub(struct amdgpu_device *adev, uint32_t vmid, 230 unsigned int vmhub, uint32_t flush_type) 231 { 232 struct amdgpu_vmhub *hub = &adev->vmhub[vmhub]; 233 u32 tmp = gmc_v10_0_get_invalidate_req(vmid, flush_type); 234 /* Use register 17 for GART */ 235 const unsigned eng = 17; 236 unsigned int i; 237 238 WREG32_NO_KIQ(hub->vm_inv_eng0_req + eng, tmp); 239 240 /* 241 * Issue a dummy read to wait for the ACK register to be cleared 242 * to avoid a false ACK due to the new fast GRBM interface. 243 */ 244 if (vmhub == AMDGPU_GFXHUB_0) 245 RREG32_NO_KIQ(hub->vm_inv_eng0_req + eng); 246 247 /* Wait for ACK with a delay.*/ 248 for (i = 0; i < adev->usec_timeout; i++) { 249 tmp = RREG32_NO_KIQ(hub->vm_inv_eng0_ack + eng); 250 tmp &= 1 << vmid; 251 if (tmp) 252 break; 253 254 udelay(1); 255 } 256 257 if (i < adev->usec_timeout) 258 return; 259 260 DRM_ERROR("Timeout waiting for VM flush ACK!\n"); 261 } 262 263 /** 264 * gmc_v10_0_flush_gpu_tlb - gart tlb flush callback 265 * 266 * @adev: amdgpu_device pointer 267 * @vmid: vm instance to flush 268 * 269 * Flush the TLB for the requested page table. 270 */ 271 static void gmc_v10_0_flush_gpu_tlb(struct amdgpu_device *adev, uint32_t vmid, 272 uint32_t vmhub, uint32_t flush_type) 273 { 274 struct amdgpu_ring *ring = adev->mman.buffer_funcs_ring; 275 struct dma_fence *fence; 276 struct amdgpu_job *job; 277 278 int r; 279 280 /* flush hdp cache */ 281 adev->nbio_funcs->hdp_flush(adev, NULL); 282 283 mutex_lock(&adev->mman.gtt_window_lock); 284 285 if (vmhub == AMDGPU_MMHUB_0) { 286 gmc_v10_0_flush_vm_hub(adev, vmid, AMDGPU_MMHUB_0, 0); 287 mutex_unlock(&adev->mman.gtt_window_lock); 288 return; 289 } 290 291 BUG_ON(vmhub != AMDGPU_GFXHUB_0); 292 293 if (!adev->mman.buffer_funcs_enabled || 294 !adev->ib_pool_ready || 295 adev->in_gpu_reset) { 296 gmc_v10_0_flush_vm_hub(adev, vmid, AMDGPU_GFXHUB_0, 0); 297 mutex_unlock(&adev->mman.gtt_window_lock); 298 return; 299 } 300 301 /* The SDMA on Navi has a bug which can theoretically result in memory 302 * corruption if an invalidation happens at the same time as an VA 303 * translation. Avoid this by doing the invalidation from the SDMA 304 * itself. 305 */ 306 r = amdgpu_job_alloc_with_ib(adev, 16 * 4, &job); 307 if (r) 308 goto error_alloc; 309 310 job->vm_pd_addr = amdgpu_gmc_pd_addr(adev->gart.bo); 311 job->vm_needs_flush = true; 312 amdgpu_ring_pad_ib(ring, &job->ibs[0]); 313 r = amdgpu_job_submit(job, &adev->mman.entity, 314 AMDGPU_FENCE_OWNER_UNDEFINED, &fence); 315 if (r) 316 goto error_submit; 317 318 mutex_unlock(&adev->mman.gtt_window_lock); 319 320 dma_fence_wait(fence, false); 321 dma_fence_put(fence); 322 323 return; 324 325 error_submit: 326 amdgpu_job_free(job); 327 328 error_alloc: 329 mutex_unlock(&adev->mman.gtt_window_lock); 330 DRM_ERROR("Error flushing GPU TLB using the SDMA (%d)!\n", r); 331 } 332 333 static uint64_t gmc_v10_0_emit_flush_gpu_tlb(struct amdgpu_ring *ring, 334 unsigned vmid, uint64_t pd_addr) 335 { 336 struct amdgpu_vmhub *hub = &ring->adev->vmhub[ring->funcs->vmhub]; 337 uint32_t req = gmc_v10_0_get_invalidate_req(vmid, 0); 338 unsigned eng = ring->vm_inv_eng; 339 340 amdgpu_ring_emit_wreg(ring, hub->ctx0_ptb_addr_lo32 + (2 * vmid), 341 lower_32_bits(pd_addr)); 342 343 amdgpu_ring_emit_wreg(ring, hub->ctx0_ptb_addr_hi32 + (2 * vmid), 344 upper_32_bits(pd_addr)); 345 346 amdgpu_ring_emit_wreg(ring, hub->vm_inv_eng0_req + eng, req); 347 348 /* wait for the invalidate to complete */ 349 amdgpu_ring_emit_reg_wait(ring, hub->vm_inv_eng0_ack + eng, 350 1 << vmid, 1 << vmid); 351 352 return pd_addr; 353 } 354 355 static void gmc_v10_0_emit_pasid_mapping(struct amdgpu_ring *ring, unsigned vmid, 356 unsigned pasid) 357 { 358 struct amdgpu_device *adev = ring->adev; 359 uint32_t reg; 360 361 if (ring->funcs->vmhub == AMDGPU_GFXHUB_0) 362 reg = SOC15_REG_OFFSET(OSSSYS, 0, mmIH_VMID_0_LUT) + vmid; 363 else 364 reg = SOC15_REG_OFFSET(OSSSYS, 0, mmIH_VMID_0_LUT_MM) + vmid; 365 366 amdgpu_ring_emit_wreg(ring, reg, pasid); 367 } 368 369 /* 370 * PTE format on NAVI 10: 371 * 63:59 reserved 372 * 58:57 reserved 373 * 56 F 374 * 55 L 375 * 54 reserved 376 * 53:52 SW 377 * 51 T 378 * 50:48 mtype 379 * 47:12 4k physical page base address 380 * 11:7 fragment 381 * 6 write 382 * 5 read 383 * 4 exe 384 * 3 Z 385 * 2 snooped 386 * 1 system 387 * 0 valid 388 * 389 * PDE format on NAVI 10: 390 * 63:59 block fragment size 391 * 58:55 reserved 392 * 54 P 393 * 53:48 reserved 394 * 47:6 physical base address of PD or PTE 395 * 5:3 reserved 396 * 2 C 397 * 1 system 398 * 0 valid 399 */ 400 static uint64_t gmc_v10_0_get_vm_pte_flags(struct amdgpu_device *adev, 401 uint32_t flags) 402 { 403 uint64_t pte_flag = 0; 404 405 if (flags & AMDGPU_VM_PAGE_EXECUTABLE) 406 pte_flag |= AMDGPU_PTE_EXECUTABLE; 407 if (flags & AMDGPU_VM_PAGE_READABLE) 408 pte_flag |= AMDGPU_PTE_READABLE; 409 if (flags & AMDGPU_VM_PAGE_WRITEABLE) 410 pte_flag |= AMDGPU_PTE_WRITEABLE; 411 412 switch (flags & AMDGPU_VM_MTYPE_MASK) { 413 case AMDGPU_VM_MTYPE_DEFAULT: 414 pte_flag |= AMDGPU_PTE_MTYPE_NV10(MTYPE_NC); 415 break; 416 case AMDGPU_VM_MTYPE_NC: 417 pte_flag |= AMDGPU_PTE_MTYPE_NV10(MTYPE_NC); 418 break; 419 case AMDGPU_VM_MTYPE_WC: 420 pte_flag |= AMDGPU_PTE_MTYPE_NV10(MTYPE_WC); 421 break; 422 case AMDGPU_VM_MTYPE_CC: 423 pte_flag |= AMDGPU_PTE_MTYPE_NV10(MTYPE_CC); 424 break; 425 case AMDGPU_VM_MTYPE_UC: 426 pte_flag |= AMDGPU_PTE_MTYPE_NV10(MTYPE_UC); 427 break; 428 default: 429 pte_flag |= AMDGPU_PTE_MTYPE_NV10(MTYPE_NC); 430 break; 431 } 432 433 if (flags & AMDGPU_VM_PAGE_PRT) 434 pte_flag |= AMDGPU_PTE_PRT; 435 436 return pte_flag; 437 } 438 439 static void gmc_v10_0_get_vm_pde(struct amdgpu_device *adev, int level, 440 uint64_t *addr, uint64_t *flags) 441 { 442 if (!(*flags & AMDGPU_PDE_PTE) && !(*flags & AMDGPU_PTE_SYSTEM)) 443 *addr = adev->vm_manager.vram_base_offset + *addr - 444 adev->gmc.vram_start; 445 BUG_ON(*addr & 0xFFFF00000000003FULL); 446 447 if (!adev->gmc.translate_further) 448 return; 449 450 if (level == AMDGPU_VM_PDB1) { 451 /* Set the block fragment size */ 452 if (!(*flags & AMDGPU_PDE_PTE)) 453 *flags |= AMDGPU_PDE_BFS(0x9); 454 455 } else if (level == AMDGPU_VM_PDB0) { 456 if (*flags & AMDGPU_PDE_PTE) 457 *flags &= ~AMDGPU_PDE_PTE; 458 else 459 *flags |= AMDGPU_PTE_TF; 460 } 461 } 462 463 static const struct amdgpu_gmc_funcs gmc_v10_0_gmc_funcs = { 464 .flush_gpu_tlb = gmc_v10_0_flush_gpu_tlb, 465 .emit_flush_gpu_tlb = gmc_v10_0_emit_flush_gpu_tlb, 466 .emit_pasid_mapping = gmc_v10_0_emit_pasid_mapping, 467 .get_vm_pte_flags = gmc_v10_0_get_vm_pte_flags, 468 .get_vm_pde = gmc_v10_0_get_vm_pde 469 }; 470 471 static void gmc_v10_0_set_gmc_funcs(struct amdgpu_device *adev) 472 { 473 if (adev->gmc.gmc_funcs == NULL) 474 adev->gmc.gmc_funcs = &gmc_v10_0_gmc_funcs; 475 } 476 477 static int gmc_v10_0_early_init(void *handle) 478 { 479 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 480 481 gmc_v10_0_set_gmc_funcs(adev); 482 gmc_v10_0_set_irq_funcs(adev); 483 484 adev->gmc.shared_aperture_start = 0x2000000000000000ULL; 485 adev->gmc.shared_aperture_end = 486 adev->gmc.shared_aperture_start + (4ULL << 30) - 1; 487 adev->gmc.private_aperture_start = 0x1000000000000000ULL; 488 adev->gmc.private_aperture_end = 489 adev->gmc.private_aperture_start + (4ULL << 30) - 1; 490 491 return 0; 492 } 493 494 static int gmc_v10_0_late_init(void *handle) 495 { 496 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 497 unsigned vm_inv_eng[AMDGPU_MAX_VMHUBS] = { 4, 4 }; 498 unsigned i; 499 500 for(i = 0; i < adev->num_rings; ++i) { 501 struct amdgpu_ring *ring = adev->rings[i]; 502 unsigned vmhub = ring->funcs->vmhub; 503 504 ring->vm_inv_eng = vm_inv_eng[vmhub]++; 505 dev_info(adev->dev, "ring %u(%s) uses VM inv eng %u on hub %u\n", 506 ring->idx, ring->name, ring->vm_inv_eng, 507 ring->funcs->vmhub); 508 } 509 510 /* Engine 17 is used for GART flushes */ 511 for(i = 0; i < AMDGPU_MAX_VMHUBS; ++i) 512 BUG_ON(vm_inv_eng[i] > 17); 513 514 return amdgpu_irq_get(adev, &adev->gmc.vm_fault, 0); 515 } 516 517 static void gmc_v10_0_vram_gtt_location(struct amdgpu_device *adev, 518 struct amdgpu_gmc *mc) 519 { 520 u64 base = 0; 521 522 if (!amdgpu_sriov_vf(adev)) 523 base = gfxhub_v2_0_get_fb_location(adev); 524 525 amdgpu_gmc_vram_location(adev, &adev->gmc, base); 526 amdgpu_gmc_gart_location(adev, mc); 527 528 /* base offset of vram pages */ 529 adev->vm_manager.vram_base_offset = gfxhub_v2_0_get_mc_fb_offset(adev); 530 } 531 532 /** 533 * gmc_v10_0_mc_init - initialize the memory controller driver params 534 * 535 * @adev: amdgpu_device pointer 536 * 537 * Look up the amount of vram, vram width, and decide how to place 538 * vram and gart within the GPU's physical address space. 539 * Returns 0 for success. 540 */ 541 static int gmc_v10_0_mc_init(struct amdgpu_device *adev) 542 { 543 int chansize, numchan; 544 545 if (!amdgpu_emu_mode) 546 adev->gmc.vram_width = amdgpu_atomfirmware_get_vram_width(adev); 547 else { 548 /* hard code vram_width for emulation */ 549 chansize = 128; 550 numchan = 1; 551 adev->gmc.vram_width = numchan * chansize; 552 } 553 554 /* Could aper size report 0 ? */ 555 adev->gmc.aper_base = pci_resource_start(adev->pdev, 0); 556 adev->gmc.aper_size = pci_resource_len(adev->pdev, 0); 557 558 /* size in MB on si */ 559 adev->gmc.mc_vram_size = 560 adev->nbio_funcs->get_memsize(adev) * 1024ULL * 1024ULL; 561 adev->gmc.real_vram_size = adev->gmc.mc_vram_size; 562 adev->gmc.visible_vram_size = adev->gmc.aper_size; 563 564 /* In case the PCI BAR is larger than the actual amount of vram */ 565 if (adev->gmc.visible_vram_size > adev->gmc.real_vram_size) 566 adev->gmc.visible_vram_size = adev->gmc.real_vram_size; 567 568 /* set the gart size */ 569 if (amdgpu_gart_size == -1) { 570 switch (adev->asic_type) { 571 case CHIP_NAVI10: 572 case CHIP_NAVI14: 573 case CHIP_NAVI12: 574 default: 575 adev->gmc.gart_size = 512ULL << 20; 576 break; 577 } 578 } else 579 adev->gmc.gart_size = (u64)amdgpu_gart_size << 20; 580 581 gmc_v10_0_vram_gtt_location(adev, &adev->gmc); 582 583 return 0; 584 } 585 586 static int gmc_v10_0_gart_init(struct amdgpu_device *adev) 587 { 588 int r; 589 590 if (adev->gart.bo) { 591 WARN(1, "NAVI10 PCIE GART already initialized\n"); 592 return 0; 593 } 594 595 /* Initialize common gart structure */ 596 r = amdgpu_gart_init(adev); 597 if (r) 598 return r; 599 600 adev->gart.table_size = adev->gart.num_gpu_pages * 8; 601 adev->gart.gart_pte_flags = AMDGPU_PTE_MTYPE_NV10(MTYPE_UC) | 602 AMDGPU_PTE_EXECUTABLE; 603 604 return amdgpu_gart_table_vram_alloc(adev); 605 } 606 607 static unsigned gmc_v10_0_get_vbios_fb_size(struct amdgpu_device *adev) 608 { 609 u32 d1vga_control = RREG32_SOC15(DCE, 0, mmD1VGA_CONTROL); 610 unsigned size; 611 612 if (REG_GET_FIELD(d1vga_control, D1VGA_CONTROL, D1VGA_MODE_ENABLE)) { 613 size = 9 * 1024 * 1024; /* reserve 8MB for vga emulator and 1 MB for FB */ 614 } else { 615 u32 viewport; 616 u32 pitch; 617 618 viewport = RREG32_SOC15(DCE, 0, mmHUBP0_DCSURF_PRI_VIEWPORT_DIMENSION); 619 pitch = RREG32_SOC15(DCE, 0, mmHUBPREQ0_DCSURF_SURFACE_PITCH); 620 size = (REG_GET_FIELD(viewport, 621 HUBP0_DCSURF_PRI_VIEWPORT_DIMENSION, PRI_VIEWPORT_HEIGHT) * 622 REG_GET_FIELD(pitch, HUBPREQ0_DCSURF_SURFACE_PITCH, PITCH) * 623 4); 624 } 625 /* return 0 if the pre-OS buffer uses up most of vram */ 626 if ((adev->gmc.real_vram_size - size) < (8 * 1024 * 1024)) { 627 DRM_ERROR("Warning: pre-OS buffer uses most of vram, \ 628 be aware of gart table overwrite\n"); 629 return 0; 630 } 631 632 return size; 633 } 634 635 636 637 static int gmc_v10_0_sw_init(void *handle) 638 { 639 int r; 640 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 641 642 gfxhub_v2_0_init(adev); 643 mmhub_v2_0_init(adev); 644 645 spin_lock_init(&adev->gmc.invalidate_lock); 646 647 adev->gmc.vram_type = amdgpu_atomfirmware_get_vram_type(adev); 648 switch (adev->asic_type) { 649 case CHIP_NAVI10: 650 case CHIP_NAVI14: 651 case CHIP_NAVI12: 652 adev->num_vmhubs = 2; 653 /* 654 * To fulfill 4-level page support, 655 * vm size is 256TB (48bit), maximum size of Navi10/Navi14/Navi12, 656 * block size 512 (9bit) 657 */ 658 amdgpu_vm_adjust_size(adev, 256 * 1024, 9, 3, 48); 659 break; 660 default: 661 break; 662 } 663 664 /* This interrupt is VMC page fault.*/ 665 r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_VMC, 666 VMC_1_0__SRCID__VM_FAULT, 667 &adev->gmc.vm_fault); 668 r = amdgpu_irq_add_id(adev, SOC15_IH_CLIENTID_UTCL2, 669 UTCL2_1_0__SRCID__FAULT, 670 &adev->gmc.vm_fault); 671 if (r) 672 return r; 673 674 /* 675 * Set the internal MC address mask This is the max address of the GPU's 676 * internal address space. 677 */ 678 adev->gmc.mc_mask = 0xffffffffffffULL; /* 48 bit MC */ 679 680 /* 681 * Reserve 8M stolen memory for navi10 like vega10 682 * TODO: will check if it's really needed on asic. 683 */ 684 if (amdgpu_emu_mode == 1) 685 adev->gmc.stolen_size = 0; 686 else 687 adev->gmc.stolen_size = 9 * 1024 *1024; 688 689 r = dma_set_mask_and_coherent(adev->dev, DMA_BIT_MASK(44)); 690 if (r) { 691 printk(KERN_WARNING "amdgpu: No suitable DMA available.\n"); 692 return r; 693 } 694 695 r = gmc_v10_0_mc_init(adev); 696 if (r) 697 return r; 698 699 adev->gmc.stolen_size = gmc_v10_0_get_vbios_fb_size(adev); 700 701 /* Memory manager */ 702 r = amdgpu_bo_init(adev); 703 if (r) 704 return r; 705 706 r = gmc_v10_0_gart_init(adev); 707 if (r) 708 return r; 709 710 /* 711 * number of VMs 712 * VMID 0 is reserved for System 713 * amdgpu graphics/compute will use VMIDs 1-7 714 * amdkfd will use VMIDs 8-15 715 */ 716 adev->vm_manager.id_mgr[AMDGPU_GFXHUB_0].num_ids = AMDGPU_NUM_OF_VMIDS; 717 adev->vm_manager.id_mgr[AMDGPU_MMHUB_0].num_ids = AMDGPU_NUM_OF_VMIDS; 718 719 amdgpu_vm_manager_init(adev); 720 721 return 0; 722 } 723 724 /** 725 * gmc_v8_0_gart_fini - vm fini callback 726 * 727 * @adev: amdgpu_device pointer 728 * 729 * Tears down the driver GART/VM setup (CIK). 730 */ 731 static void gmc_v10_0_gart_fini(struct amdgpu_device *adev) 732 { 733 amdgpu_gart_table_vram_free(adev); 734 amdgpu_gart_fini(adev); 735 } 736 737 static int gmc_v10_0_sw_fini(void *handle) 738 { 739 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 740 741 amdgpu_vm_manager_fini(adev); 742 gmc_v10_0_gart_fini(adev); 743 amdgpu_gem_force_release(adev); 744 amdgpu_bo_fini(adev); 745 746 return 0; 747 } 748 749 static void gmc_v10_0_init_golden_registers(struct amdgpu_device *adev) 750 { 751 switch (adev->asic_type) { 752 case CHIP_NAVI10: 753 case CHIP_NAVI14: 754 case CHIP_NAVI12: 755 break; 756 default: 757 break; 758 } 759 } 760 761 /** 762 * gmc_v10_0_gart_enable - gart enable 763 * 764 * @adev: amdgpu_device pointer 765 */ 766 static int gmc_v10_0_gart_enable(struct amdgpu_device *adev) 767 { 768 int r; 769 bool value; 770 u32 tmp; 771 772 if (adev->gart.bo == NULL) { 773 dev_err(adev->dev, "No VRAM object for PCIE GART.\n"); 774 return -EINVAL; 775 } 776 777 r = amdgpu_gart_table_vram_pin(adev); 778 if (r) 779 return r; 780 781 r = gfxhub_v2_0_gart_enable(adev); 782 if (r) 783 return r; 784 785 r = mmhub_v2_0_gart_enable(adev); 786 if (r) 787 return r; 788 789 tmp = RREG32_SOC15(HDP, 0, mmHDP_MISC_CNTL); 790 tmp |= HDP_MISC_CNTL__FLUSH_INVALIDATE_CACHE_MASK; 791 WREG32_SOC15(HDP, 0, mmHDP_MISC_CNTL, tmp); 792 793 tmp = RREG32_SOC15(HDP, 0, mmHDP_HOST_PATH_CNTL); 794 WREG32_SOC15(HDP, 0, mmHDP_HOST_PATH_CNTL, tmp); 795 796 /* Flush HDP after it is initialized */ 797 adev->nbio_funcs->hdp_flush(adev, NULL); 798 799 value = (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_ALWAYS) ? 800 false : true; 801 802 gfxhub_v2_0_set_fault_enable_default(adev, value); 803 mmhub_v2_0_set_fault_enable_default(adev, value); 804 gmc_v10_0_flush_gpu_tlb(adev, 0, AMDGPU_MMHUB_0, 0); 805 gmc_v10_0_flush_gpu_tlb(adev, 0, AMDGPU_GFXHUB_0, 0); 806 807 DRM_INFO("PCIE GART of %uM enabled (table at 0x%016llX).\n", 808 (unsigned)(adev->gmc.gart_size >> 20), 809 (unsigned long long)amdgpu_bo_gpu_offset(adev->gart.bo)); 810 811 adev->gart.ready = true; 812 813 return 0; 814 } 815 816 static int gmc_v10_0_hw_init(void *handle) 817 { 818 int r; 819 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 820 821 /* The sequence of these two function calls matters.*/ 822 gmc_v10_0_init_golden_registers(adev); 823 824 r = gmc_v10_0_gart_enable(adev); 825 if (r) 826 return r; 827 828 return 0; 829 } 830 831 /** 832 * gmc_v10_0_gart_disable - gart disable 833 * 834 * @adev: amdgpu_device pointer 835 * 836 * This disables all VM page table. 837 */ 838 static void gmc_v10_0_gart_disable(struct amdgpu_device *adev) 839 { 840 gfxhub_v2_0_gart_disable(adev); 841 mmhub_v2_0_gart_disable(adev); 842 amdgpu_gart_table_vram_unpin(adev); 843 } 844 845 static int gmc_v10_0_hw_fini(void *handle) 846 { 847 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 848 849 if (amdgpu_sriov_vf(adev)) { 850 /* full access mode, so don't touch any GMC register */ 851 DRM_DEBUG("For SRIOV client, shouldn't do anything.\n"); 852 return 0; 853 } 854 855 amdgpu_irq_put(adev, &adev->gmc.vm_fault, 0); 856 gmc_v10_0_gart_disable(adev); 857 858 return 0; 859 } 860 861 static int gmc_v10_0_suspend(void *handle) 862 { 863 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 864 865 gmc_v10_0_hw_fini(adev); 866 867 return 0; 868 } 869 870 static int gmc_v10_0_resume(void *handle) 871 { 872 int r; 873 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 874 875 r = gmc_v10_0_hw_init(adev); 876 if (r) 877 return r; 878 879 amdgpu_vmid_reset_all(adev); 880 881 return 0; 882 } 883 884 static bool gmc_v10_0_is_idle(void *handle) 885 { 886 /* MC is always ready in GMC v10.*/ 887 return true; 888 } 889 890 static int gmc_v10_0_wait_for_idle(void *handle) 891 { 892 /* There is no need to wait for MC idle in GMC v10.*/ 893 return 0; 894 } 895 896 static int gmc_v10_0_soft_reset(void *handle) 897 { 898 return 0; 899 } 900 901 static int gmc_v10_0_set_clockgating_state(void *handle, 902 enum amd_clockgating_state state) 903 { 904 int r; 905 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 906 907 r = mmhub_v2_0_set_clockgating(adev, state); 908 if (r) 909 return r; 910 911 return athub_v2_0_set_clockgating(adev, state); 912 } 913 914 static void gmc_v10_0_get_clockgating_state(void *handle, u32 *flags) 915 { 916 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 917 918 mmhub_v2_0_get_clockgating(adev, flags); 919 920 athub_v2_0_get_clockgating(adev, flags); 921 } 922 923 static int gmc_v10_0_set_powergating_state(void *handle, 924 enum amd_powergating_state state) 925 { 926 return 0; 927 } 928 929 const struct amd_ip_funcs gmc_v10_0_ip_funcs = { 930 .name = "gmc_v10_0", 931 .early_init = gmc_v10_0_early_init, 932 .late_init = gmc_v10_0_late_init, 933 .sw_init = gmc_v10_0_sw_init, 934 .sw_fini = gmc_v10_0_sw_fini, 935 .hw_init = gmc_v10_0_hw_init, 936 .hw_fini = gmc_v10_0_hw_fini, 937 .suspend = gmc_v10_0_suspend, 938 .resume = gmc_v10_0_resume, 939 .is_idle = gmc_v10_0_is_idle, 940 .wait_for_idle = gmc_v10_0_wait_for_idle, 941 .soft_reset = gmc_v10_0_soft_reset, 942 .set_clockgating_state = gmc_v10_0_set_clockgating_state, 943 .set_powergating_state = gmc_v10_0_set_powergating_state, 944 .get_clockgating_state = gmc_v10_0_get_clockgating_state, 945 }; 946 947 const struct amdgpu_ip_block_version gmc_v10_0_ip_block = 948 { 949 .type = AMD_IP_BLOCK_TYPE_GMC, 950 .major = 10, 951 .minor = 0, 952 .rev = 0, 953 .funcs = &gmc_v10_0_ip_funcs, 954 }; 955