1 /* 2 * Copyright 2014 Advanced Micro Devices, Inc. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice shall be included in 12 * all copies or substantial portions of the Software. 13 * 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 20 * OTHER DEALINGS IN THE SOFTWARE. 21 * 22 */ 23 #include <linux/firmware.h> 24 #include "drmP.h" 25 #include "amdgpu.h" 26 #include "gmc_v8_0.h" 27 #include "amdgpu_ucode.h" 28 29 #include "gmc/gmc_8_1_d.h" 30 #include "gmc/gmc_8_1_sh_mask.h" 31 32 #include "bif/bif_5_0_d.h" 33 #include "bif/bif_5_0_sh_mask.h" 34 35 #include "oss/oss_3_0_d.h" 36 #include "oss/oss_3_0_sh_mask.h" 37 38 #include "vid.h" 39 #include "vi.h" 40 41 42 static void gmc_v8_0_set_gart_funcs(struct amdgpu_device *adev); 43 static void gmc_v8_0_set_irq_funcs(struct amdgpu_device *adev); 44 45 MODULE_FIRMWARE("amdgpu/topaz_mc.bin"); 46 MODULE_FIRMWARE("amdgpu/tonga_mc.bin"); 47 MODULE_FIRMWARE("amdgpu/fiji_mc.bin"); 48 49 static const u32 golden_settings_tonga_a11[] = 50 { 51 mmMC_ARB_WTM_GRPWT_RD, 0x00000003, 0x00000000, 52 mmMC_HUB_RDREQ_DMIF_LIMIT, 0x0000007f, 0x00000028, 53 mmMC_HUB_WDP_UMC, 0x00007fb6, 0x00000991, 54 mmVM_PRT_APERTURE0_LOW_ADDR, 0x0fffffff, 0x0fffffff, 55 mmVM_PRT_APERTURE1_LOW_ADDR, 0x0fffffff, 0x0fffffff, 56 mmVM_PRT_APERTURE2_LOW_ADDR, 0x0fffffff, 0x0fffffff, 57 mmVM_PRT_APERTURE3_LOW_ADDR, 0x0fffffff, 0x0fffffff, 58 }; 59 60 static const u32 tonga_mgcg_cgcg_init[] = 61 { 62 mmMC_MEM_POWER_LS, 0xffffffff, 0x00000104 63 }; 64 65 static const u32 golden_settings_fiji_a10[] = 66 { 67 mmVM_PRT_APERTURE0_LOW_ADDR, 0x0fffffff, 0x0fffffff, 68 mmVM_PRT_APERTURE1_LOW_ADDR, 0x0fffffff, 0x0fffffff, 69 mmVM_PRT_APERTURE2_LOW_ADDR, 0x0fffffff, 0x0fffffff, 70 mmVM_PRT_APERTURE3_LOW_ADDR, 0x0fffffff, 0x0fffffff, 71 }; 72 73 static const u32 fiji_mgcg_cgcg_init[] = 74 { 75 mmMC_MEM_POWER_LS, 0xffffffff, 0x00000104 76 }; 77 78 static const u32 golden_settings_iceland_a11[] = 79 { 80 mmVM_PRT_APERTURE0_LOW_ADDR, 0x0fffffff, 0x0fffffff, 81 mmVM_PRT_APERTURE1_LOW_ADDR, 0x0fffffff, 0x0fffffff, 82 mmVM_PRT_APERTURE2_LOW_ADDR, 0x0fffffff, 0x0fffffff, 83 mmVM_PRT_APERTURE3_LOW_ADDR, 0x0fffffff, 0x0fffffff 84 }; 85 86 static const u32 iceland_mgcg_cgcg_init[] = 87 { 88 mmMC_MEM_POWER_LS, 0xffffffff, 0x00000104 89 }; 90 91 static const u32 cz_mgcg_cgcg_init[] = 92 { 93 mmMC_MEM_POWER_LS, 0xffffffff, 0x00000104 94 }; 95 96 static const u32 stoney_mgcg_cgcg_init[] = 97 { 98 mmMC_MEM_POWER_LS, 0xffffffff, 0x00000104 99 }; 100 101 102 static void gmc_v8_0_init_golden_registers(struct amdgpu_device *adev) 103 { 104 switch (adev->asic_type) { 105 case CHIP_TOPAZ: 106 amdgpu_program_register_sequence(adev, 107 iceland_mgcg_cgcg_init, 108 (const u32)ARRAY_SIZE(iceland_mgcg_cgcg_init)); 109 amdgpu_program_register_sequence(adev, 110 golden_settings_iceland_a11, 111 (const u32)ARRAY_SIZE(golden_settings_iceland_a11)); 112 break; 113 case CHIP_FIJI: 114 amdgpu_program_register_sequence(adev, 115 fiji_mgcg_cgcg_init, 116 (const u32)ARRAY_SIZE(fiji_mgcg_cgcg_init)); 117 amdgpu_program_register_sequence(adev, 118 golden_settings_fiji_a10, 119 (const u32)ARRAY_SIZE(golden_settings_fiji_a10)); 120 break; 121 case CHIP_TONGA: 122 amdgpu_program_register_sequence(adev, 123 tonga_mgcg_cgcg_init, 124 (const u32)ARRAY_SIZE(tonga_mgcg_cgcg_init)); 125 amdgpu_program_register_sequence(adev, 126 golden_settings_tonga_a11, 127 (const u32)ARRAY_SIZE(golden_settings_tonga_a11)); 128 break; 129 case CHIP_CARRIZO: 130 amdgpu_program_register_sequence(adev, 131 cz_mgcg_cgcg_init, 132 (const u32)ARRAY_SIZE(cz_mgcg_cgcg_init)); 133 break; 134 case CHIP_STONEY: 135 amdgpu_program_register_sequence(adev, 136 stoney_mgcg_cgcg_init, 137 (const u32)ARRAY_SIZE(stoney_mgcg_cgcg_init)); 138 break; 139 default: 140 break; 141 } 142 } 143 144 /** 145 * gmc8_mc_wait_for_idle - wait for MC idle callback. 146 * 147 * @adev: amdgpu_device pointer 148 * 149 * Wait for the MC (memory controller) to be idle. 150 * (evergreen+). 151 * Returns 0 if the MC is idle, -1 if not. 152 */ 153 int gmc_v8_0_mc_wait_for_idle(struct amdgpu_device *adev) 154 { 155 unsigned i; 156 u32 tmp; 157 158 for (i = 0; i < adev->usec_timeout; i++) { 159 /* read MC_STATUS */ 160 tmp = RREG32(mmSRBM_STATUS) & (SRBM_STATUS__VMC_BUSY_MASK | 161 SRBM_STATUS__MCB_BUSY_MASK | 162 SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK | 163 SRBM_STATUS__MCC_BUSY_MASK | 164 SRBM_STATUS__MCD_BUSY_MASK | 165 SRBM_STATUS__VMC1_BUSY_MASK); 166 if (!tmp) 167 return 0; 168 udelay(1); 169 } 170 return -1; 171 } 172 173 void gmc_v8_0_mc_stop(struct amdgpu_device *adev, 174 struct amdgpu_mode_mc_save *save) 175 { 176 u32 blackout; 177 178 if (adev->mode_info.num_crtc) 179 amdgpu_display_stop_mc_access(adev, save); 180 181 amdgpu_asic_wait_for_mc_idle(adev); 182 183 blackout = RREG32(mmMC_SHARED_BLACKOUT_CNTL); 184 if (REG_GET_FIELD(blackout, MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE) != 1) { 185 /* Block CPU access */ 186 WREG32(mmBIF_FB_EN, 0); 187 /* blackout the MC */ 188 blackout = REG_SET_FIELD(blackout, 189 MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE, 1); 190 WREG32(mmMC_SHARED_BLACKOUT_CNTL, blackout); 191 } 192 /* wait for the MC to settle */ 193 udelay(100); 194 } 195 196 void gmc_v8_0_mc_resume(struct amdgpu_device *adev, 197 struct amdgpu_mode_mc_save *save) 198 { 199 u32 tmp; 200 201 /* unblackout the MC */ 202 tmp = RREG32(mmMC_SHARED_BLACKOUT_CNTL); 203 tmp = REG_SET_FIELD(tmp, MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE, 0); 204 WREG32(mmMC_SHARED_BLACKOUT_CNTL, tmp); 205 /* allow CPU access */ 206 tmp = REG_SET_FIELD(0, BIF_FB_EN, FB_READ_EN, 1); 207 tmp = REG_SET_FIELD(tmp, BIF_FB_EN, FB_WRITE_EN, 1); 208 WREG32(mmBIF_FB_EN, tmp); 209 210 if (adev->mode_info.num_crtc) 211 amdgpu_display_resume_mc_access(adev, save); 212 } 213 214 /** 215 * gmc_v8_0_init_microcode - load ucode images from disk 216 * 217 * @adev: amdgpu_device pointer 218 * 219 * Use the firmware interface to load the ucode images into 220 * the driver (not loaded into hw). 221 * Returns 0 on success, error on failure. 222 */ 223 static int gmc_v8_0_init_microcode(struct amdgpu_device *adev) 224 { 225 const char *chip_name; 226 char fw_name[30]; 227 int err; 228 229 DRM_DEBUG("\n"); 230 231 switch (adev->asic_type) { 232 case CHIP_TOPAZ: 233 chip_name = "topaz"; 234 break; 235 case CHIP_TONGA: 236 chip_name = "tonga"; 237 break; 238 case CHIP_FIJI: 239 chip_name = "fiji"; 240 break; 241 case CHIP_CARRIZO: 242 case CHIP_STONEY: 243 return 0; 244 default: BUG(); 245 } 246 247 snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_mc.bin", chip_name); 248 err = request_firmware(&adev->mc.fw, fw_name, adev->dev); 249 if (err) 250 goto out; 251 err = amdgpu_ucode_validate(adev->mc.fw); 252 253 out: 254 if (err) { 255 printk(KERN_ERR 256 "mc: Failed to load firmware \"%s\"\n", 257 fw_name); 258 release_firmware(adev->mc.fw); 259 adev->mc.fw = NULL; 260 } 261 return err; 262 } 263 264 /** 265 * gmc_v8_0_mc_load_microcode - load MC ucode into the hw 266 * 267 * @adev: amdgpu_device pointer 268 * 269 * Load the GDDR MC ucode into the hw (CIK). 270 * Returns 0 on success, error on failure. 271 */ 272 static int gmc_v8_0_mc_load_microcode(struct amdgpu_device *adev) 273 { 274 const struct mc_firmware_header_v1_0 *hdr; 275 const __le32 *fw_data = NULL; 276 const __le32 *io_mc_regs = NULL; 277 u32 running, blackout = 0; 278 int i, ucode_size, regs_size; 279 280 if (!adev->mc.fw) 281 return -EINVAL; 282 283 hdr = (const struct mc_firmware_header_v1_0 *)adev->mc.fw->data; 284 amdgpu_ucode_print_mc_hdr(&hdr->header); 285 286 adev->mc.fw_version = le32_to_cpu(hdr->header.ucode_version); 287 regs_size = le32_to_cpu(hdr->io_debug_size_bytes) / (4 * 2); 288 io_mc_regs = (const __le32 *) 289 (adev->mc.fw->data + le32_to_cpu(hdr->io_debug_array_offset_bytes)); 290 ucode_size = le32_to_cpu(hdr->header.ucode_size_bytes) / 4; 291 fw_data = (const __le32 *) 292 (adev->mc.fw->data + le32_to_cpu(hdr->header.ucode_array_offset_bytes)); 293 294 running = REG_GET_FIELD(RREG32(mmMC_SEQ_SUP_CNTL), MC_SEQ_SUP_CNTL, RUN); 295 296 if (running == 0) { 297 if (running) { 298 blackout = RREG32(mmMC_SHARED_BLACKOUT_CNTL); 299 WREG32(mmMC_SHARED_BLACKOUT_CNTL, blackout | 1); 300 } 301 302 /* reset the engine and set to writable */ 303 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000008); 304 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000010); 305 306 /* load mc io regs */ 307 for (i = 0; i < regs_size; i++) { 308 WREG32(mmMC_SEQ_IO_DEBUG_INDEX, le32_to_cpup(io_mc_regs++)); 309 WREG32(mmMC_SEQ_IO_DEBUG_DATA, le32_to_cpup(io_mc_regs++)); 310 } 311 /* load the MC ucode */ 312 for (i = 0; i < ucode_size; i++) 313 WREG32(mmMC_SEQ_SUP_PGM, le32_to_cpup(fw_data++)); 314 315 /* put the engine back into the active state */ 316 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000008); 317 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000004); 318 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000001); 319 320 /* wait for training to complete */ 321 for (i = 0; i < adev->usec_timeout; i++) { 322 if (REG_GET_FIELD(RREG32(mmMC_SEQ_TRAIN_WAKEUP_CNTL), 323 MC_SEQ_TRAIN_WAKEUP_CNTL, TRAIN_DONE_D0)) 324 break; 325 udelay(1); 326 } 327 for (i = 0; i < adev->usec_timeout; i++) { 328 if (REG_GET_FIELD(RREG32(mmMC_SEQ_TRAIN_WAKEUP_CNTL), 329 MC_SEQ_TRAIN_WAKEUP_CNTL, TRAIN_DONE_D1)) 330 break; 331 udelay(1); 332 } 333 334 if (running) 335 WREG32(mmMC_SHARED_BLACKOUT_CNTL, blackout); 336 } 337 338 return 0; 339 } 340 341 static void gmc_v8_0_vram_gtt_location(struct amdgpu_device *adev, 342 struct amdgpu_mc *mc) 343 { 344 if (mc->mc_vram_size > 0xFFC0000000ULL) { 345 /* leave room for at least 1024M GTT */ 346 dev_warn(adev->dev, "limiting VRAM\n"); 347 mc->real_vram_size = 0xFFC0000000ULL; 348 mc->mc_vram_size = 0xFFC0000000ULL; 349 } 350 amdgpu_vram_location(adev, &adev->mc, 0); 351 adev->mc.gtt_base_align = 0; 352 amdgpu_gtt_location(adev, mc); 353 } 354 355 /** 356 * gmc_v8_0_mc_program - program the GPU memory controller 357 * 358 * @adev: amdgpu_device pointer 359 * 360 * Set the location of vram, gart, and AGP in the GPU's 361 * physical address space (CIK). 362 */ 363 static void gmc_v8_0_mc_program(struct amdgpu_device *adev) 364 { 365 struct amdgpu_mode_mc_save save; 366 u32 tmp; 367 int i, j; 368 369 /* Initialize HDP */ 370 for (i = 0, j = 0; i < 32; i++, j += 0x6) { 371 WREG32((0xb05 + j), 0x00000000); 372 WREG32((0xb06 + j), 0x00000000); 373 WREG32((0xb07 + j), 0x00000000); 374 WREG32((0xb08 + j), 0x00000000); 375 WREG32((0xb09 + j), 0x00000000); 376 } 377 WREG32(mmHDP_REG_COHERENCY_FLUSH_CNTL, 0); 378 379 if (adev->mode_info.num_crtc) 380 amdgpu_display_set_vga_render_state(adev, false); 381 382 gmc_v8_0_mc_stop(adev, &save); 383 if (amdgpu_asic_wait_for_mc_idle(adev)) { 384 dev_warn(adev->dev, "Wait for MC idle timedout !\n"); 385 } 386 /* Update configuration */ 387 WREG32(mmMC_VM_SYSTEM_APERTURE_LOW_ADDR, 388 adev->mc.vram_start >> 12); 389 WREG32(mmMC_VM_SYSTEM_APERTURE_HIGH_ADDR, 390 adev->mc.vram_end >> 12); 391 WREG32(mmMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR, 392 adev->vram_scratch.gpu_addr >> 12); 393 tmp = ((adev->mc.vram_end >> 24) & 0xFFFF) << 16; 394 tmp |= ((adev->mc.vram_start >> 24) & 0xFFFF); 395 WREG32(mmMC_VM_FB_LOCATION, tmp); 396 /* XXX double check these! */ 397 WREG32(mmHDP_NONSURFACE_BASE, (adev->mc.vram_start >> 8)); 398 WREG32(mmHDP_NONSURFACE_INFO, (2 << 7) | (1 << 30)); 399 WREG32(mmHDP_NONSURFACE_SIZE, 0x3FFFFFFF); 400 WREG32(mmMC_VM_AGP_BASE, 0); 401 WREG32(mmMC_VM_AGP_TOP, 0x0FFFFFFF); 402 WREG32(mmMC_VM_AGP_BOT, 0x0FFFFFFF); 403 if (amdgpu_asic_wait_for_mc_idle(adev)) { 404 dev_warn(adev->dev, "Wait for MC idle timedout !\n"); 405 } 406 gmc_v8_0_mc_resume(adev, &save); 407 408 WREG32(mmBIF_FB_EN, BIF_FB_EN__FB_READ_EN_MASK | BIF_FB_EN__FB_WRITE_EN_MASK); 409 410 tmp = RREG32(mmHDP_MISC_CNTL); 411 tmp = REG_SET_FIELD(tmp, HDP_MISC_CNTL, FLUSH_INVALIDATE_CACHE, 1); 412 WREG32(mmHDP_MISC_CNTL, tmp); 413 414 tmp = RREG32(mmHDP_HOST_PATH_CNTL); 415 WREG32(mmHDP_HOST_PATH_CNTL, tmp); 416 } 417 418 /** 419 * gmc_v8_0_mc_init - initialize the memory controller driver params 420 * 421 * @adev: amdgpu_device pointer 422 * 423 * Look up the amount of vram, vram width, and decide how to place 424 * vram and gart within the GPU's physical address space (CIK). 425 * Returns 0 for success. 426 */ 427 static int gmc_v8_0_mc_init(struct amdgpu_device *adev) 428 { 429 u32 tmp; 430 int chansize, numchan; 431 432 /* Get VRAM informations */ 433 tmp = RREG32(mmMC_ARB_RAMCFG); 434 if (REG_GET_FIELD(tmp, MC_ARB_RAMCFG, CHANSIZE)) { 435 chansize = 64; 436 } else { 437 chansize = 32; 438 } 439 tmp = RREG32(mmMC_SHARED_CHMAP); 440 switch (REG_GET_FIELD(tmp, MC_SHARED_CHMAP, NOOFCHAN)) { 441 case 0: 442 default: 443 numchan = 1; 444 break; 445 case 1: 446 numchan = 2; 447 break; 448 case 2: 449 numchan = 4; 450 break; 451 case 3: 452 numchan = 8; 453 break; 454 case 4: 455 numchan = 3; 456 break; 457 case 5: 458 numchan = 6; 459 break; 460 case 6: 461 numchan = 10; 462 break; 463 case 7: 464 numchan = 12; 465 break; 466 case 8: 467 numchan = 16; 468 break; 469 } 470 adev->mc.vram_width = numchan * chansize; 471 /* Could aper size report 0 ? */ 472 adev->mc.aper_base = pci_resource_start(adev->pdev, 0); 473 adev->mc.aper_size = pci_resource_len(adev->pdev, 0); 474 /* size in MB on si */ 475 adev->mc.mc_vram_size = RREG32(mmCONFIG_MEMSIZE) * 1024ULL * 1024ULL; 476 adev->mc.real_vram_size = RREG32(mmCONFIG_MEMSIZE) * 1024ULL * 1024ULL; 477 adev->mc.visible_vram_size = adev->mc.aper_size; 478 479 /* unless the user had overridden it, set the gart 480 * size equal to the 1024 or vram, whichever is larger. 481 */ 482 if (amdgpu_gart_size == -1) 483 adev->mc.gtt_size = max((1024ULL << 20), adev->mc.mc_vram_size); 484 else 485 adev->mc.gtt_size = (uint64_t)amdgpu_gart_size << 20; 486 487 gmc_v8_0_vram_gtt_location(adev, &adev->mc); 488 489 return 0; 490 } 491 492 /* 493 * GART 494 * VMID 0 is the physical GPU addresses as used by the kernel. 495 * VMIDs 1-15 are used for userspace clients and are handled 496 * by the amdgpu vm/hsa code. 497 */ 498 499 /** 500 * gmc_v8_0_gart_flush_gpu_tlb - gart tlb flush callback 501 * 502 * @adev: amdgpu_device pointer 503 * @vmid: vm instance to flush 504 * 505 * Flush the TLB for the requested page table (CIK). 506 */ 507 static void gmc_v8_0_gart_flush_gpu_tlb(struct amdgpu_device *adev, 508 uint32_t vmid) 509 { 510 /* flush hdp cache */ 511 WREG32(mmHDP_MEM_COHERENCY_FLUSH_CNTL, 0); 512 513 /* bits 0-15 are the VM contexts0-15 */ 514 WREG32(mmVM_INVALIDATE_REQUEST, 1 << vmid); 515 } 516 517 /** 518 * gmc_v8_0_gart_set_pte_pde - update the page tables using MMIO 519 * 520 * @adev: amdgpu_device pointer 521 * @cpu_pt_addr: cpu address of the page table 522 * @gpu_page_idx: entry in the page table to update 523 * @addr: dst addr to write into pte/pde 524 * @flags: access flags 525 * 526 * Update the page tables using the CPU. 527 */ 528 static int gmc_v8_0_gart_set_pte_pde(struct amdgpu_device *adev, 529 void *cpu_pt_addr, 530 uint32_t gpu_page_idx, 531 uint64_t addr, 532 uint32_t flags) 533 { 534 void __iomem *ptr = (void *)cpu_pt_addr; 535 uint64_t value; 536 537 /* 538 * PTE format on VI: 539 * 63:40 reserved 540 * 39:12 4k physical page base address 541 * 11:7 fragment 542 * 6 write 543 * 5 read 544 * 4 exe 545 * 3 reserved 546 * 2 snooped 547 * 1 system 548 * 0 valid 549 * 550 * PDE format on VI: 551 * 63:59 block fragment size 552 * 58:40 reserved 553 * 39:1 physical base address of PTE 554 * bits 5:1 must be 0. 555 * 0 valid 556 */ 557 value = addr & 0x000000FFFFFFF000ULL; 558 value |= flags; 559 writeq(value, ptr + (gpu_page_idx * 8)); 560 561 return 0; 562 } 563 564 /** 565 * gmc_v8_0_set_fault_enable_default - update VM fault handling 566 * 567 * @adev: amdgpu_device pointer 568 * @value: true redirects VM faults to the default page 569 */ 570 static void gmc_v8_0_set_fault_enable_default(struct amdgpu_device *adev, 571 bool value) 572 { 573 u32 tmp; 574 575 tmp = RREG32(mmVM_CONTEXT1_CNTL); 576 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, 577 RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, value); 578 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, 579 DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, value); 580 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, 581 PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, value); 582 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, 583 VALID_PROTECTION_FAULT_ENABLE_DEFAULT, value); 584 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, 585 READ_PROTECTION_FAULT_ENABLE_DEFAULT, value); 586 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, 587 WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, value); 588 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, 589 EXECUTE_PROTECTION_FAULT_ENABLE_DEFAULT, value); 590 WREG32(mmVM_CONTEXT1_CNTL, tmp); 591 } 592 593 /** 594 * gmc_v8_0_gart_enable - gart enable 595 * 596 * @adev: amdgpu_device pointer 597 * 598 * This sets up the TLBs, programs the page tables for VMID0, 599 * sets up the hw for VMIDs 1-15 which are allocated on 600 * demand, and sets up the global locations for the LDS, GDS, 601 * and GPUVM for FSA64 clients (CIK). 602 * Returns 0 for success, errors for failure. 603 */ 604 static int gmc_v8_0_gart_enable(struct amdgpu_device *adev) 605 { 606 int r, i; 607 u32 tmp; 608 609 if (adev->gart.robj == NULL) { 610 dev_err(adev->dev, "No VRAM object for PCIE GART.\n"); 611 return -EINVAL; 612 } 613 r = amdgpu_gart_table_vram_pin(adev); 614 if (r) 615 return r; 616 /* Setup TLB control */ 617 tmp = RREG32(mmMC_VM_MX_L1_TLB_CNTL); 618 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 1); 619 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_FRAGMENT_PROCESSING, 1); 620 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, SYSTEM_ACCESS_MODE, 3); 621 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_ADVANCED_DRIVER_MODEL, 1); 622 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, SYSTEM_APERTURE_UNMAPPED_ACCESS, 0); 623 WREG32(mmMC_VM_MX_L1_TLB_CNTL, tmp); 624 /* Setup L2 cache */ 625 tmp = RREG32(mmVM_L2_CNTL); 626 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_CACHE, 1); 627 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_FRAGMENT_PROCESSING, 1); 628 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE, 1); 629 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_PDE0_CACHE_LRU_UPDATE_BY_WRITE, 1); 630 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, EFFECTIVE_L2_QUEUE_SIZE, 7); 631 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, CONTEXT1_IDENTITY_ACCESS_MODE, 1); 632 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_DEFAULT_PAGE_OUT_TO_SYSTEM_MEMORY, 1); 633 WREG32(mmVM_L2_CNTL, tmp); 634 tmp = RREG32(mmVM_L2_CNTL2); 635 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL2, INVALIDATE_ALL_L1_TLBS, 1); 636 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL2, INVALIDATE_L2_CACHE, 1); 637 WREG32(mmVM_L2_CNTL2, tmp); 638 tmp = RREG32(mmVM_L2_CNTL3); 639 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, L2_CACHE_BIGK_ASSOCIATIVITY, 1); 640 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, BANK_SELECT, 4); 641 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, L2_CACHE_BIGK_FRAGMENT_SIZE, 4); 642 WREG32(mmVM_L2_CNTL3, tmp); 643 /* XXX: set to enable PTE/PDE in system memory */ 644 tmp = RREG32(mmVM_L2_CNTL4); 645 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT0_PDE_REQUEST_PHYSICAL, 0); 646 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT0_PDE_REQUEST_SHARED, 0); 647 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT0_PDE_REQUEST_SNOOP, 0); 648 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT0_PTE_REQUEST_PHYSICAL, 0); 649 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT0_PTE_REQUEST_SHARED, 0); 650 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT0_PTE_REQUEST_SNOOP, 0); 651 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT1_PDE_REQUEST_PHYSICAL, 0); 652 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT1_PDE_REQUEST_SHARED, 0); 653 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT1_PDE_REQUEST_SNOOP, 0); 654 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT1_PTE_REQUEST_PHYSICAL, 0); 655 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT1_PTE_REQUEST_SHARED, 0); 656 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT1_PTE_REQUEST_SNOOP, 0); 657 WREG32(mmVM_L2_CNTL4, tmp); 658 /* setup context0 */ 659 WREG32(mmVM_CONTEXT0_PAGE_TABLE_START_ADDR, adev->mc.gtt_start >> 12); 660 WREG32(mmVM_CONTEXT0_PAGE_TABLE_END_ADDR, adev->mc.gtt_end >> 12); 661 WREG32(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR, adev->gart.table_addr >> 12); 662 WREG32(mmVM_CONTEXT0_PROTECTION_FAULT_DEFAULT_ADDR, 663 (u32)(adev->dummy_page.addr >> 12)); 664 WREG32(mmVM_CONTEXT0_CNTL2, 0); 665 tmp = RREG32(mmVM_CONTEXT0_CNTL); 666 tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, ENABLE_CONTEXT, 1); 667 tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, PAGE_TABLE_DEPTH, 0); 668 tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1); 669 WREG32(mmVM_CONTEXT0_CNTL, tmp); 670 671 WREG32(mmVM_L2_CONTEXT1_IDENTITY_APERTURE_LOW_ADDR, 0); 672 WREG32(mmVM_L2_CONTEXT1_IDENTITY_APERTURE_HIGH_ADDR, 0); 673 WREG32(mmVM_L2_CONTEXT_IDENTITY_PHYSICAL_OFFSET, 0); 674 675 /* empty context1-15 */ 676 /* FIXME start with 4G, once using 2 level pt switch to full 677 * vm size space 678 */ 679 /* set vm size, must be a multiple of 4 */ 680 WREG32(mmVM_CONTEXT1_PAGE_TABLE_START_ADDR, 0); 681 WREG32(mmVM_CONTEXT1_PAGE_TABLE_END_ADDR, adev->vm_manager.max_pfn - 1); 682 for (i = 1; i < 16; i++) { 683 if (i < 8) 684 WREG32(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR + i, 685 adev->gart.table_addr >> 12); 686 else 687 WREG32(mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + i - 8, 688 adev->gart.table_addr >> 12); 689 } 690 691 /* enable context1-15 */ 692 WREG32(mmVM_CONTEXT1_PROTECTION_FAULT_DEFAULT_ADDR, 693 (u32)(adev->dummy_page.addr >> 12)); 694 WREG32(mmVM_CONTEXT1_CNTL2, 4); 695 tmp = RREG32(mmVM_CONTEXT1_CNTL); 696 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, ENABLE_CONTEXT, 1); 697 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, PAGE_TABLE_DEPTH, 1); 698 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1); 699 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1); 700 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, 1); 701 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, VALID_PROTECTION_FAULT_ENABLE_DEFAULT, 1); 702 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, READ_PROTECTION_FAULT_ENABLE_DEFAULT, 1); 703 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, 1); 704 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, EXECUTE_PROTECTION_FAULT_ENABLE_DEFAULT, 1); 705 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, PAGE_TABLE_BLOCK_SIZE, 706 amdgpu_vm_block_size - 9); 707 WREG32(mmVM_CONTEXT1_CNTL, tmp); 708 if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_ALWAYS) 709 gmc_v8_0_set_fault_enable_default(adev, false); 710 else 711 gmc_v8_0_set_fault_enable_default(adev, true); 712 713 gmc_v8_0_gart_flush_gpu_tlb(adev, 0); 714 DRM_INFO("PCIE GART of %uM enabled (table at 0x%016llX).\n", 715 (unsigned)(adev->mc.gtt_size >> 20), 716 (unsigned long long)adev->gart.table_addr); 717 adev->gart.ready = true; 718 return 0; 719 } 720 721 static int gmc_v8_0_gart_init(struct amdgpu_device *adev) 722 { 723 int r; 724 725 if (adev->gart.robj) { 726 WARN(1, "R600 PCIE GART already initialized\n"); 727 return 0; 728 } 729 /* Initialize common gart structure */ 730 r = amdgpu_gart_init(adev); 731 if (r) 732 return r; 733 adev->gart.table_size = adev->gart.num_gpu_pages * 8; 734 return amdgpu_gart_table_vram_alloc(adev); 735 } 736 737 /** 738 * gmc_v8_0_gart_disable - gart disable 739 * 740 * @adev: amdgpu_device pointer 741 * 742 * This disables all VM page table (CIK). 743 */ 744 static void gmc_v8_0_gart_disable(struct amdgpu_device *adev) 745 { 746 u32 tmp; 747 748 /* Disable all tables */ 749 WREG32(mmVM_CONTEXT0_CNTL, 0); 750 WREG32(mmVM_CONTEXT1_CNTL, 0); 751 /* Setup TLB control */ 752 tmp = RREG32(mmMC_VM_MX_L1_TLB_CNTL); 753 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 0); 754 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_FRAGMENT_PROCESSING, 0); 755 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_ADVANCED_DRIVER_MODEL, 0); 756 WREG32(mmMC_VM_MX_L1_TLB_CNTL, tmp); 757 /* Setup L2 cache */ 758 tmp = RREG32(mmVM_L2_CNTL); 759 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_CACHE, 0); 760 WREG32(mmVM_L2_CNTL, tmp); 761 WREG32(mmVM_L2_CNTL2, 0); 762 amdgpu_gart_table_vram_unpin(adev); 763 } 764 765 /** 766 * gmc_v8_0_gart_fini - vm fini callback 767 * 768 * @adev: amdgpu_device pointer 769 * 770 * Tears down the driver GART/VM setup (CIK). 771 */ 772 static void gmc_v8_0_gart_fini(struct amdgpu_device *adev) 773 { 774 amdgpu_gart_table_vram_free(adev); 775 amdgpu_gart_fini(adev); 776 } 777 778 /* 779 * vm 780 * VMID 0 is the physical GPU addresses as used by the kernel. 781 * VMIDs 1-15 are used for userspace clients and are handled 782 * by the amdgpu vm/hsa code. 783 */ 784 /** 785 * gmc_v8_0_vm_init - cik vm init callback 786 * 787 * @adev: amdgpu_device pointer 788 * 789 * Inits cik specific vm parameters (number of VMs, base of vram for 790 * VMIDs 1-15) (CIK). 791 * Returns 0 for success. 792 */ 793 static int gmc_v8_0_vm_init(struct amdgpu_device *adev) 794 { 795 /* 796 * number of VMs 797 * VMID 0 is reserved for System 798 * amdgpu graphics/compute will use VMIDs 1-7 799 * amdkfd will use VMIDs 8-15 800 */ 801 adev->vm_manager.nvm = AMDGPU_NUM_OF_VMIDS; 802 803 /* base offset of vram pages */ 804 if (adev->flags & AMD_IS_APU) { 805 u64 tmp = RREG32(mmMC_VM_FB_OFFSET); 806 tmp <<= 22; 807 adev->vm_manager.vram_base_offset = tmp; 808 } else 809 adev->vm_manager.vram_base_offset = 0; 810 811 return 0; 812 } 813 814 /** 815 * gmc_v8_0_vm_fini - cik vm fini callback 816 * 817 * @adev: amdgpu_device pointer 818 * 819 * Tear down any asic specific VM setup (CIK). 820 */ 821 static void gmc_v8_0_vm_fini(struct amdgpu_device *adev) 822 { 823 } 824 825 /** 826 * gmc_v8_0_vm_decode_fault - print human readable fault info 827 * 828 * @adev: amdgpu_device pointer 829 * @status: VM_CONTEXT1_PROTECTION_FAULT_STATUS register value 830 * @addr: VM_CONTEXT1_PROTECTION_FAULT_ADDR register value 831 * 832 * Print human readable fault information (CIK). 833 */ 834 static void gmc_v8_0_vm_decode_fault(struct amdgpu_device *adev, 835 u32 status, u32 addr, u32 mc_client) 836 { 837 u32 mc_id; 838 u32 vmid = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS, VMID); 839 u32 protections = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS, 840 PROTECTIONS); 841 char block[5] = { mc_client >> 24, (mc_client >> 16) & 0xff, 842 (mc_client >> 8) & 0xff, mc_client & 0xff, 0 }; 843 844 mc_id = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS, 845 MEMORY_CLIENT_ID); 846 847 printk("VM fault (0x%02x, vmid %d) at page %u, %s from '%s' (0x%08x) (%d)\n", 848 protections, vmid, addr, 849 REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS, 850 MEMORY_CLIENT_RW) ? 851 "write" : "read", block, mc_client, mc_id); 852 } 853 854 static int gmc_v8_0_convert_vram_type(int mc_seq_vram_type) 855 { 856 switch (mc_seq_vram_type) { 857 case MC_SEQ_MISC0__MT__GDDR1: 858 return AMDGPU_VRAM_TYPE_GDDR1; 859 case MC_SEQ_MISC0__MT__DDR2: 860 return AMDGPU_VRAM_TYPE_DDR2; 861 case MC_SEQ_MISC0__MT__GDDR3: 862 return AMDGPU_VRAM_TYPE_GDDR3; 863 case MC_SEQ_MISC0__MT__GDDR4: 864 return AMDGPU_VRAM_TYPE_GDDR4; 865 case MC_SEQ_MISC0__MT__GDDR5: 866 return AMDGPU_VRAM_TYPE_GDDR5; 867 case MC_SEQ_MISC0__MT__HBM: 868 return AMDGPU_VRAM_TYPE_HBM; 869 case MC_SEQ_MISC0__MT__DDR3: 870 return AMDGPU_VRAM_TYPE_DDR3; 871 default: 872 return AMDGPU_VRAM_TYPE_UNKNOWN; 873 } 874 } 875 876 static int gmc_v8_0_early_init(void *handle) 877 { 878 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 879 880 gmc_v8_0_set_gart_funcs(adev); 881 gmc_v8_0_set_irq_funcs(adev); 882 883 if (adev->flags & AMD_IS_APU) { 884 adev->mc.vram_type = AMDGPU_VRAM_TYPE_UNKNOWN; 885 } else { 886 u32 tmp = RREG32(mmMC_SEQ_MISC0); 887 tmp &= MC_SEQ_MISC0__MT__MASK; 888 adev->mc.vram_type = gmc_v8_0_convert_vram_type(tmp); 889 } 890 891 return 0; 892 } 893 894 static int gmc_v8_0_late_init(void *handle) 895 { 896 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 897 898 return amdgpu_irq_get(adev, &adev->mc.vm_fault, 0); 899 } 900 901 static int gmc_v8_0_sw_init(void *handle) 902 { 903 int r; 904 int dma_bits; 905 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 906 907 r = amdgpu_gem_init(adev); 908 if (r) 909 return r; 910 911 r = amdgpu_irq_add_id(adev, 146, &adev->mc.vm_fault); 912 if (r) 913 return r; 914 915 r = amdgpu_irq_add_id(adev, 147, &adev->mc.vm_fault); 916 if (r) 917 return r; 918 919 /* Adjust VM size here. 920 * Currently set to 4GB ((1 << 20) 4k pages). 921 * Max GPUVM size for cayman and SI is 40 bits. 922 */ 923 adev->vm_manager.max_pfn = amdgpu_vm_size << 18; 924 925 /* Set the internal MC address mask 926 * This is the max address of the GPU's 927 * internal address space. 928 */ 929 adev->mc.mc_mask = 0xffffffffffULL; /* 40 bit MC */ 930 931 /* set DMA mask + need_dma32 flags. 932 * PCIE - can handle 40-bits. 933 * IGP - can handle 40-bits 934 * PCI - dma32 for legacy pci gart, 40 bits on newer asics 935 */ 936 adev->need_dma32 = false; 937 dma_bits = adev->need_dma32 ? 32 : 40; 938 r = pci_set_dma_mask(adev->pdev, DMA_BIT_MASK(dma_bits)); 939 if (r) { 940 adev->need_dma32 = true; 941 dma_bits = 32; 942 printk(KERN_WARNING "amdgpu: No suitable DMA available.\n"); 943 } 944 r = pci_set_consistent_dma_mask(adev->pdev, DMA_BIT_MASK(dma_bits)); 945 if (r) { 946 pci_set_consistent_dma_mask(adev->pdev, DMA_BIT_MASK(32)); 947 printk(KERN_WARNING "amdgpu: No coherent DMA available.\n"); 948 } 949 950 r = gmc_v8_0_init_microcode(adev); 951 if (r) { 952 DRM_ERROR("Failed to load mc firmware!\n"); 953 return r; 954 } 955 956 r = gmc_v8_0_mc_init(adev); 957 if (r) 958 return r; 959 960 /* Memory manager */ 961 r = amdgpu_bo_init(adev); 962 if (r) 963 return r; 964 965 r = gmc_v8_0_gart_init(adev); 966 if (r) 967 return r; 968 969 if (!adev->vm_manager.enabled) { 970 r = gmc_v8_0_vm_init(adev); 971 if (r) { 972 dev_err(adev->dev, "vm manager initialization failed (%d).\n", r); 973 return r; 974 } 975 adev->vm_manager.enabled = true; 976 } 977 978 return r; 979 } 980 981 static int gmc_v8_0_sw_fini(void *handle) 982 { 983 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 984 985 if (adev->vm_manager.enabled) { 986 amdgpu_vm_manager_fini(adev); 987 gmc_v8_0_vm_fini(adev); 988 adev->vm_manager.enabled = false; 989 } 990 gmc_v8_0_gart_fini(adev); 991 amdgpu_gem_fini(adev); 992 amdgpu_bo_fini(adev); 993 994 return 0; 995 } 996 997 static int gmc_v8_0_hw_init(void *handle) 998 { 999 int r; 1000 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1001 1002 gmc_v8_0_init_golden_registers(adev); 1003 1004 gmc_v8_0_mc_program(adev); 1005 1006 if (!(adev->flags & AMD_IS_APU)) { 1007 r = gmc_v8_0_mc_load_microcode(adev); 1008 if (r) { 1009 DRM_ERROR("Failed to load MC firmware!\n"); 1010 return r; 1011 } 1012 } 1013 1014 r = gmc_v8_0_gart_enable(adev); 1015 if (r) 1016 return r; 1017 1018 return r; 1019 } 1020 1021 static int gmc_v8_0_hw_fini(void *handle) 1022 { 1023 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1024 1025 amdgpu_irq_put(adev, &adev->mc.vm_fault, 0); 1026 gmc_v8_0_gart_disable(adev); 1027 1028 return 0; 1029 } 1030 1031 static int gmc_v8_0_suspend(void *handle) 1032 { 1033 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1034 1035 if (adev->vm_manager.enabled) { 1036 amdgpu_vm_manager_fini(adev); 1037 gmc_v8_0_vm_fini(adev); 1038 adev->vm_manager.enabled = false; 1039 } 1040 gmc_v8_0_hw_fini(adev); 1041 1042 return 0; 1043 } 1044 1045 static int gmc_v8_0_resume(void *handle) 1046 { 1047 int r; 1048 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1049 1050 r = gmc_v8_0_hw_init(adev); 1051 if (r) 1052 return r; 1053 1054 if (!adev->vm_manager.enabled) { 1055 r = gmc_v8_0_vm_init(adev); 1056 if (r) { 1057 dev_err(adev->dev, "vm manager initialization failed (%d).\n", r); 1058 return r; 1059 } 1060 adev->vm_manager.enabled = true; 1061 } 1062 1063 return r; 1064 } 1065 1066 static bool gmc_v8_0_is_idle(void *handle) 1067 { 1068 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1069 u32 tmp = RREG32(mmSRBM_STATUS); 1070 1071 if (tmp & (SRBM_STATUS__MCB_BUSY_MASK | SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK | 1072 SRBM_STATUS__MCC_BUSY_MASK | SRBM_STATUS__MCD_BUSY_MASK | SRBM_STATUS__VMC_BUSY_MASK)) 1073 return false; 1074 1075 return true; 1076 } 1077 1078 static int gmc_v8_0_wait_for_idle(void *handle) 1079 { 1080 unsigned i; 1081 u32 tmp; 1082 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1083 1084 for (i = 0; i < adev->usec_timeout; i++) { 1085 /* read MC_STATUS */ 1086 tmp = RREG32(mmSRBM_STATUS) & (SRBM_STATUS__MCB_BUSY_MASK | 1087 SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK | 1088 SRBM_STATUS__MCC_BUSY_MASK | 1089 SRBM_STATUS__MCD_BUSY_MASK | 1090 SRBM_STATUS__VMC_BUSY_MASK | 1091 SRBM_STATUS__VMC1_BUSY_MASK); 1092 if (!tmp) 1093 return 0; 1094 udelay(1); 1095 } 1096 return -ETIMEDOUT; 1097 1098 } 1099 1100 static void gmc_v8_0_print_status(void *handle) 1101 { 1102 int i, j; 1103 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1104 1105 dev_info(adev->dev, "GMC 8.x registers\n"); 1106 dev_info(adev->dev, " SRBM_STATUS=0x%08X\n", 1107 RREG32(mmSRBM_STATUS)); 1108 dev_info(adev->dev, " SRBM_STATUS2=0x%08X\n", 1109 RREG32(mmSRBM_STATUS2)); 1110 1111 dev_info(adev->dev, " VM_CONTEXT1_PROTECTION_FAULT_ADDR 0x%08X\n", 1112 RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_ADDR)); 1113 dev_info(adev->dev, " VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x%08X\n", 1114 RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_STATUS)); 1115 dev_info(adev->dev, " MC_VM_MX_L1_TLB_CNTL=0x%08X\n", 1116 RREG32(mmMC_VM_MX_L1_TLB_CNTL)); 1117 dev_info(adev->dev, " VM_L2_CNTL=0x%08X\n", 1118 RREG32(mmVM_L2_CNTL)); 1119 dev_info(adev->dev, " VM_L2_CNTL2=0x%08X\n", 1120 RREG32(mmVM_L2_CNTL2)); 1121 dev_info(adev->dev, " VM_L2_CNTL3=0x%08X\n", 1122 RREG32(mmVM_L2_CNTL3)); 1123 dev_info(adev->dev, " VM_L2_CNTL4=0x%08X\n", 1124 RREG32(mmVM_L2_CNTL4)); 1125 dev_info(adev->dev, " VM_CONTEXT0_PAGE_TABLE_START_ADDR=0x%08X\n", 1126 RREG32(mmVM_CONTEXT0_PAGE_TABLE_START_ADDR)); 1127 dev_info(adev->dev, " VM_CONTEXT0_PAGE_TABLE_END_ADDR=0x%08X\n", 1128 RREG32(mmVM_CONTEXT0_PAGE_TABLE_END_ADDR)); 1129 dev_info(adev->dev, " VM_CONTEXT0_PROTECTION_FAULT_DEFAULT_ADDR=0x%08X\n", 1130 RREG32(mmVM_CONTEXT0_PROTECTION_FAULT_DEFAULT_ADDR)); 1131 dev_info(adev->dev, " VM_CONTEXT0_CNTL2=0x%08X\n", 1132 RREG32(mmVM_CONTEXT0_CNTL2)); 1133 dev_info(adev->dev, " VM_CONTEXT0_CNTL=0x%08X\n", 1134 RREG32(mmVM_CONTEXT0_CNTL)); 1135 dev_info(adev->dev, " VM_L2_CONTEXT1_IDENTITY_APERTURE_LOW_ADDR=0x%08X\n", 1136 RREG32(mmVM_L2_CONTEXT1_IDENTITY_APERTURE_LOW_ADDR)); 1137 dev_info(adev->dev, " VM_L2_CONTEXT1_IDENTITY_APERTURE_HIGH_ADDR=0x%08X\n", 1138 RREG32(mmVM_L2_CONTEXT1_IDENTITY_APERTURE_HIGH_ADDR)); 1139 dev_info(adev->dev, " mmVM_L2_CONTEXT_IDENTITY_PHYSICAL_OFFSET=0x%08X\n", 1140 RREG32(mmVM_L2_CONTEXT_IDENTITY_PHYSICAL_OFFSET)); 1141 dev_info(adev->dev, " VM_CONTEXT1_PAGE_TABLE_START_ADDR=0x%08X\n", 1142 RREG32(mmVM_CONTEXT1_PAGE_TABLE_START_ADDR)); 1143 dev_info(adev->dev, " VM_CONTEXT1_PAGE_TABLE_END_ADDR=0x%08X\n", 1144 RREG32(mmVM_CONTEXT1_PAGE_TABLE_END_ADDR)); 1145 dev_info(adev->dev, " VM_CONTEXT1_PROTECTION_FAULT_DEFAULT_ADDR=0x%08X\n", 1146 RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_DEFAULT_ADDR)); 1147 dev_info(adev->dev, " VM_CONTEXT1_CNTL2=0x%08X\n", 1148 RREG32(mmVM_CONTEXT1_CNTL2)); 1149 dev_info(adev->dev, " VM_CONTEXT1_CNTL=0x%08X\n", 1150 RREG32(mmVM_CONTEXT1_CNTL)); 1151 for (i = 0; i < 16; i++) { 1152 if (i < 8) 1153 dev_info(adev->dev, " VM_CONTEXT%d_PAGE_TABLE_BASE_ADDR=0x%08X\n", 1154 i, RREG32(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR + i)); 1155 else 1156 dev_info(adev->dev, " VM_CONTEXT%d_PAGE_TABLE_BASE_ADDR=0x%08X\n", 1157 i, RREG32(mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + i - 8)); 1158 } 1159 dev_info(adev->dev, " MC_VM_SYSTEM_APERTURE_LOW_ADDR=0x%08X\n", 1160 RREG32(mmMC_VM_SYSTEM_APERTURE_LOW_ADDR)); 1161 dev_info(adev->dev, " MC_VM_SYSTEM_APERTURE_HIGH_ADDR=0x%08X\n", 1162 RREG32(mmMC_VM_SYSTEM_APERTURE_HIGH_ADDR)); 1163 dev_info(adev->dev, " MC_VM_SYSTEM_APERTURE_DEFAULT_ADDR=0x%08X\n", 1164 RREG32(mmMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR)); 1165 dev_info(adev->dev, " MC_VM_FB_LOCATION=0x%08X\n", 1166 RREG32(mmMC_VM_FB_LOCATION)); 1167 dev_info(adev->dev, " MC_VM_AGP_BASE=0x%08X\n", 1168 RREG32(mmMC_VM_AGP_BASE)); 1169 dev_info(adev->dev, " MC_VM_AGP_TOP=0x%08X\n", 1170 RREG32(mmMC_VM_AGP_TOP)); 1171 dev_info(adev->dev, " MC_VM_AGP_BOT=0x%08X\n", 1172 RREG32(mmMC_VM_AGP_BOT)); 1173 1174 dev_info(adev->dev, " HDP_REG_COHERENCY_FLUSH_CNTL=0x%08X\n", 1175 RREG32(mmHDP_REG_COHERENCY_FLUSH_CNTL)); 1176 dev_info(adev->dev, " HDP_NONSURFACE_BASE=0x%08X\n", 1177 RREG32(mmHDP_NONSURFACE_BASE)); 1178 dev_info(adev->dev, " HDP_NONSURFACE_INFO=0x%08X\n", 1179 RREG32(mmHDP_NONSURFACE_INFO)); 1180 dev_info(adev->dev, " HDP_NONSURFACE_SIZE=0x%08X\n", 1181 RREG32(mmHDP_NONSURFACE_SIZE)); 1182 dev_info(adev->dev, " HDP_MISC_CNTL=0x%08X\n", 1183 RREG32(mmHDP_MISC_CNTL)); 1184 dev_info(adev->dev, " HDP_HOST_PATH_CNTL=0x%08X\n", 1185 RREG32(mmHDP_HOST_PATH_CNTL)); 1186 1187 for (i = 0, j = 0; i < 32; i++, j += 0x6) { 1188 dev_info(adev->dev, " %d:\n", i); 1189 dev_info(adev->dev, " 0x%04X=0x%08X\n", 1190 0xb05 + j, RREG32(0xb05 + j)); 1191 dev_info(adev->dev, " 0x%04X=0x%08X\n", 1192 0xb06 + j, RREG32(0xb06 + j)); 1193 dev_info(adev->dev, " 0x%04X=0x%08X\n", 1194 0xb07 + j, RREG32(0xb07 + j)); 1195 dev_info(adev->dev, " 0x%04X=0x%08X\n", 1196 0xb08 + j, RREG32(0xb08 + j)); 1197 dev_info(adev->dev, " 0x%04X=0x%08X\n", 1198 0xb09 + j, RREG32(0xb09 + j)); 1199 } 1200 1201 dev_info(adev->dev, " BIF_FB_EN=0x%08X\n", 1202 RREG32(mmBIF_FB_EN)); 1203 } 1204 1205 static int gmc_v8_0_soft_reset(void *handle) 1206 { 1207 struct amdgpu_mode_mc_save save; 1208 u32 srbm_soft_reset = 0; 1209 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1210 u32 tmp = RREG32(mmSRBM_STATUS); 1211 1212 if (tmp & SRBM_STATUS__VMC_BUSY_MASK) 1213 srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset, 1214 SRBM_SOFT_RESET, SOFT_RESET_VMC, 1); 1215 1216 if (tmp & (SRBM_STATUS__MCB_BUSY_MASK | SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK | 1217 SRBM_STATUS__MCC_BUSY_MASK | SRBM_STATUS__MCD_BUSY_MASK)) { 1218 if (!(adev->flags & AMD_IS_APU)) 1219 srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset, 1220 SRBM_SOFT_RESET, SOFT_RESET_MC, 1); 1221 } 1222 1223 if (srbm_soft_reset) { 1224 gmc_v8_0_print_status((void *)adev); 1225 1226 gmc_v8_0_mc_stop(adev, &save); 1227 if (gmc_v8_0_wait_for_idle(adev)) { 1228 dev_warn(adev->dev, "Wait for GMC idle timed out !\n"); 1229 } 1230 1231 1232 tmp = RREG32(mmSRBM_SOFT_RESET); 1233 tmp |= srbm_soft_reset; 1234 dev_info(adev->dev, "SRBM_SOFT_RESET=0x%08X\n", tmp); 1235 WREG32(mmSRBM_SOFT_RESET, tmp); 1236 tmp = RREG32(mmSRBM_SOFT_RESET); 1237 1238 udelay(50); 1239 1240 tmp &= ~srbm_soft_reset; 1241 WREG32(mmSRBM_SOFT_RESET, tmp); 1242 tmp = RREG32(mmSRBM_SOFT_RESET); 1243 1244 /* Wait a little for things to settle down */ 1245 udelay(50); 1246 1247 gmc_v8_0_mc_resume(adev, &save); 1248 udelay(50); 1249 1250 gmc_v8_0_print_status((void *)adev); 1251 } 1252 1253 return 0; 1254 } 1255 1256 static int gmc_v8_0_vm_fault_interrupt_state(struct amdgpu_device *adev, 1257 struct amdgpu_irq_src *src, 1258 unsigned type, 1259 enum amdgpu_interrupt_state state) 1260 { 1261 u32 tmp; 1262 u32 bits = (VM_CONTEXT1_CNTL__RANGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | 1263 VM_CONTEXT1_CNTL__DUMMY_PAGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | 1264 VM_CONTEXT1_CNTL__PDE0_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | 1265 VM_CONTEXT1_CNTL__VALID_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | 1266 VM_CONTEXT1_CNTL__READ_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | 1267 VM_CONTEXT1_CNTL__WRITE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | 1268 VM_CONTEXT1_CNTL__EXECUTE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK); 1269 1270 switch (state) { 1271 case AMDGPU_IRQ_STATE_DISABLE: 1272 /* system context */ 1273 tmp = RREG32(mmVM_CONTEXT0_CNTL); 1274 tmp &= ~bits; 1275 WREG32(mmVM_CONTEXT0_CNTL, tmp); 1276 /* VMs */ 1277 tmp = RREG32(mmVM_CONTEXT1_CNTL); 1278 tmp &= ~bits; 1279 WREG32(mmVM_CONTEXT1_CNTL, tmp); 1280 break; 1281 case AMDGPU_IRQ_STATE_ENABLE: 1282 /* system context */ 1283 tmp = RREG32(mmVM_CONTEXT0_CNTL); 1284 tmp |= bits; 1285 WREG32(mmVM_CONTEXT0_CNTL, tmp); 1286 /* VMs */ 1287 tmp = RREG32(mmVM_CONTEXT1_CNTL); 1288 tmp |= bits; 1289 WREG32(mmVM_CONTEXT1_CNTL, tmp); 1290 break; 1291 default: 1292 break; 1293 } 1294 1295 return 0; 1296 } 1297 1298 static int gmc_v8_0_process_interrupt(struct amdgpu_device *adev, 1299 struct amdgpu_irq_src *source, 1300 struct amdgpu_iv_entry *entry) 1301 { 1302 u32 addr, status, mc_client; 1303 1304 addr = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_ADDR); 1305 status = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_STATUS); 1306 mc_client = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_MCCLIENT); 1307 /* reset addr and status */ 1308 WREG32_P(mmVM_CONTEXT1_CNTL2, 1, ~1); 1309 1310 if (!addr && !status) 1311 return 0; 1312 1313 if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_FIRST) 1314 gmc_v8_0_set_fault_enable_default(adev, false); 1315 1316 dev_err(adev->dev, "GPU fault detected: %d 0x%08x\n", 1317 entry->src_id, entry->src_data); 1318 dev_err(adev->dev, " VM_CONTEXT1_PROTECTION_FAULT_ADDR 0x%08X\n", 1319 addr); 1320 dev_err(adev->dev, " VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x%08X\n", 1321 status); 1322 gmc_v8_0_vm_decode_fault(adev, status, addr, mc_client); 1323 1324 return 0; 1325 } 1326 1327 static int gmc_v8_0_set_clockgating_state(void *handle, 1328 enum amd_clockgating_state state) 1329 { 1330 return 0; 1331 } 1332 1333 static int gmc_v8_0_set_powergating_state(void *handle, 1334 enum amd_powergating_state state) 1335 { 1336 return 0; 1337 } 1338 1339 const struct amd_ip_funcs gmc_v8_0_ip_funcs = { 1340 .early_init = gmc_v8_0_early_init, 1341 .late_init = gmc_v8_0_late_init, 1342 .sw_init = gmc_v8_0_sw_init, 1343 .sw_fini = gmc_v8_0_sw_fini, 1344 .hw_init = gmc_v8_0_hw_init, 1345 .hw_fini = gmc_v8_0_hw_fini, 1346 .suspend = gmc_v8_0_suspend, 1347 .resume = gmc_v8_0_resume, 1348 .is_idle = gmc_v8_0_is_idle, 1349 .wait_for_idle = gmc_v8_0_wait_for_idle, 1350 .soft_reset = gmc_v8_0_soft_reset, 1351 .print_status = gmc_v8_0_print_status, 1352 .set_clockgating_state = gmc_v8_0_set_clockgating_state, 1353 .set_powergating_state = gmc_v8_0_set_powergating_state, 1354 }; 1355 1356 static const struct amdgpu_gart_funcs gmc_v8_0_gart_funcs = { 1357 .flush_gpu_tlb = gmc_v8_0_gart_flush_gpu_tlb, 1358 .set_pte_pde = gmc_v8_0_gart_set_pte_pde, 1359 }; 1360 1361 static const struct amdgpu_irq_src_funcs gmc_v8_0_irq_funcs = { 1362 .set = gmc_v8_0_vm_fault_interrupt_state, 1363 .process = gmc_v8_0_process_interrupt, 1364 }; 1365 1366 static void gmc_v8_0_set_gart_funcs(struct amdgpu_device *adev) 1367 { 1368 if (adev->gart.gart_funcs == NULL) 1369 adev->gart.gart_funcs = &gmc_v8_0_gart_funcs; 1370 } 1371 1372 static void gmc_v8_0_set_irq_funcs(struct amdgpu_device *adev) 1373 { 1374 adev->mc.vm_fault.num_types = 1; 1375 adev->mc.vm_fault.funcs = &gmc_v8_0_irq_funcs; 1376 } 1377