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 <drm/drmP.h> 25 #include <drm/drm_cache.h> 26 #include "amdgpu.h" 27 #include "cikd.h" 28 #include "cik.h" 29 #include "gmc_v7_0.h" 30 #include "amdgpu_ucode.h" 31 #include "amdgpu_amdkfd.h" 32 33 #include "bif/bif_4_1_d.h" 34 #include "bif/bif_4_1_sh_mask.h" 35 36 #include "gmc/gmc_7_1_d.h" 37 #include "gmc/gmc_7_1_sh_mask.h" 38 39 #include "oss/oss_2_0_d.h" 40 #include "oss/oss_2_0_sh_mask.h" 41 42 #include "dce/dce_8_0_d.h" 43 #include "dce/dce_8_0_sh_mask.h" 44 45 #include "amdgpu_atombios.h" 46 47 #include "ivsrcid/ivsrcid_vislands30.h" 48 49 static void gmc_v7_0_set_gmc_funcs(struct amdgpu_device *adev); 50 static void gmc_v7_0_set_irq_funcs(struct amdgpu_device *adev); 51 static int gmc_v7_0_wait_for_idle(void *handle); 52 53 MODULE_FIRMWARE("amdgpufw_bonaire_mc"); 54 MODULE_FIRMWARE("amdgpufw_hawaii_mc"); 55 MODULE_FIRMWARE("amdgpufw_topaz_mc"); 56 57 static const u32 golden_settings_iceland_a11[] = 58 { 59 mmVM_PRT_APERTURE0_LOW_ADDR, 0x0fffffff, 0x0fffffff, 60 mmVM_PRT_APERTURE1_LOW_ADDR, 0x0fffffff, 0x0fffffff, 61 mmVM_PRT_APERTURE2_LOW_ADDR, 0x0fffffff, 0x0fffffff, 62 mmVM_PRT_APERTURE3_LOW_ADDR, 0x0fffffff, 0x0fffffff 63 }; 64 65 static const u32 iceland_mgcg_cgcg_init[] = 66 { 67 mmMC_MEM_POWER_LS, 0xffffffff, 0x00000104 68 }; 69 70 static void gmc_v7_0_init_golden_registers(struct amdgpu_device *adev) 71 { 72 switch (adev->asic_type) { 73 case CHIP_TOPAZ: 74 amdgpu_device_program_register_sequence(adev, 75 iceland_mgcg_cgcg_init, 76 ARRAY_SIZE(iceland_mgcg_cgcg_init)); 77 amdgpu_device_program_register_sequence(adev, 78 golden_settings_iceland_a11, 79 ARRAY_SIZE(golden_settings_iceland_a11)); 80 break; 81 default: 82 break; 83 } 84 } 85 86 static void gmc_v7_0_mc_stop(struct amdgpu_device *adev) 87 { 88 u32 blackout; 89 90 gmc_v7_0_wait_for_idle((void *)adev); 91 92 blackout = RREG32(mmMC_SHARED_BLACKOUT_CNTL); 93 if (REG_GET_FIELD(blackout, MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE) != 1) { 94 /* Block CPU access */ 95 WREG32(mmBIF_FB_EN, 0); 96 /* blackout the MC */ 97 blackout = REG_SET_FIELD(blackout, 98 MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE, 0); 99 WREG32(mmMC_SHARED_BLACKOUT_CNTL, blackout | 1); 100 } 101 /* wait for the MC to settle */ 102 udelay(100); 103 } 104 105 static void gmc_v7_0_mc_resume(struct amdgpu_device *adev) 106 { 107 u32 tmp; 108 109 /* unblackout the MC */ 110 tmp = RREG32(mmMC_SHARED_BLACKOUT_CNTL); 111 tmp = REG_SET_FIELD(tmp, MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE, 0); 112 WREG32(mmMC_SHARED_BLACKOUT_CNTL, tmp); 113 /* allow CPU access */ 114 tmp = REG_SET_FIELD(0, BIF_FB_EN, FB_READ_EN, 1); 115 tmp = REG_SET_FIELD(tmp, BIF_FB_EN, FB_WRITE_EN, 1); 116 WREG32(mmBIF_FB_EN, tmp); 117 } 118 119 /** 120 * gmc_v7_0_init_microcode - load ucode images from disk 121 * 122 * @adev: amdgpu_device pointer 123 * 124 * Use the firmware interface to load the ucode images into 125 * the driver (not loaded into hw). 126 * Returns 0 on success, error on failure. 127 */ 128 static int gmc_v7_0_init_microcode(struct amdgpu_device *adev) 129 { 130 const char *chip_name; 131 char fw_name[30]; 132 int err; 133 134 DRM_DEBUG("\n"); 135 136 switch (adev->asic_type) { 137 case CHIP_BONAIRE: 138 chip_name = "bonaire"; 139 break; 140 case CHIP_HAWAII: 141 chip_name = "hawaii"; 142 break; 143 case CHIP_TOPAZ: 144 chip_name = "topaz"; 145 break; 146 case CHIP_KAVERI: 147 case CHIP_KABINI: 148 case CHIP_MULLINS: 149 return 0; 150 default: BUG(); 151 } 152 153 snprintf(fw_name, sizeof(fw_name), "amdgpufw_%s_mc", chip_name); 154 155 err = request_firmware(&adev->gmc.fw, fw_name, adev->dev); 156 if (err) 157 goto out; 158 err = amdgpu_ucode_validate(adev->gmc.fw); 159 160 out: 161 if (err) { 162 pr_err("cik_mc: Failed to load firmware \"%s\"\n", fw_name); 163 release_firmware(adev->gmc.fw); 164 adev->gmc.fw = NULL; 165 } 166 return err; 167 } 168 169 /** 170 * gmc_v7_0_mc_load_microcode - load MC ucode into the hw 171 * 172 * @adev: amdgpu_device pointer 173 * 174 * Load the GDDR MC ucode into the hw (CIK). 175 * Returns 0 on success, error on failure. 176 */ 177 static int gmc_v7_0_mc_load_microcode(struct amdgpu_device *adev) 178 { 179 const struct mc_firmware_header_v1_0 *hdr; 180 const __le32 *fw_data = NULL; 181 const __le32 *io_mc_regs = NULL; 182 u32 running; 183 int i, ucode_size, regs_size; 184 185 if (!adev->gmc.fw) 186 return -EINVAL; 187 188 hdr = (const struct mc_firmware_header_v1_0 *)adev->gmc.fw->data; 189 amdgpu_ucode_print_mc_hdr(&hdr->header); 190 191 adev->gmc.fw_version = le32_to_cpu(hdr->header.ucode_version); 192 regs_size = le32_to_cpu(hdr->io_debug_size_bytes) / (4 * 2); 193 io_mc_regs = (const __le32 *) 194 (adev->gmc.fw->data + le32_to_cpu(hdr->io_debug_array_offset_bytes)); 195 ucode_size = le32_to_cpu(hdr->header.ucode_size_bytes) / 4; 196 fw_data = (const __le32 *) 197 (adev->gmc.fw->data + le32_to_cpu(hdr->header.ucode_array_offset_bytes)); 198 199 running = REG_GET_FIELD(RREG32(mmMC_SEQ_SUP_CNTL), MC_SEQ_SUP_CNTL, RUN); 200 201 if (running == 0) { 202 /* reset the engine and set to writable */ 203 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000008); 204 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000010); 205 206 /* load mc io regs */ 207 for (i = 0; i < regs_size; i++) { 208 WREG32(mmMC_SEQ_IO_DEBUG_INDEX, le32_to_cpup(io_mc_regs++)); 209 WREG32(mmMC_SEQ_IO_DEBUG_DATA, le32_to_cpup(io_mc_regs++)); 210 } 211 /* load the MC ucode */ 212 for (i = 0; i < ucode_size; i++) 213 WREG32(mmMC_SEQ_SUP_PGM, le32_to_cpup(fw_data++)); 214 215 /* put the engine back into the active state */ 216 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000008); 217 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000004); 218 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000001); 219 220 /* wait for training to complete */ 221 for (i = 0; i < adev->usec_timeout; i++) { 222 if (REG_GET_FIELD(RREG32(mmMC_SEQ_TRAIN_WAKEUP_CNTL), 223 MC_SEQ_TRAIN_WAKEUP_CNTL, TRAIN_DONE_D0)) 224 break; 225 udelay(1); 226 } 227 for (i = 0; i < adev->usec_timeout; i++) { 228 if (REG_GET_FIELD(RREG32(mmMC_SEQ_TRAIN_WAKEUP_CNTL), 229 MC_SEQ_TRAIN_WAKEUP_CNTL, TRAIN_DONE_D1)) 230 break; 231 udelay(1); 232 } 233 } 234 235 return 0; 236 } 237 238 static void gmc_v7_0_vram_gtt_location(struct amdgpu_device *adev, 239 struct amdgpu_gmc *mc) 240 { 241 u64 base = RREG32(mmMC_VM_FB_LOCATION) & 0xFFFF; 242 base <<= 24; 243 244 amdgpu_device_vram_location(adev, &adev->gmc, base); 245 amdgpu_device_gart_location(adev, mc); 246 } 247 248 /** 249 * gmc_v7_0_mc_program - program the GPU memory controller 250 * 251 * @adev: amdgpu_device pointer 252 * 253 * Set the location of vram, gart, and AGP in the GPU's 254 * physical address space (CIK). 255 */ 256 static void gmc_v7_0_mc_program(struct amdgpu_device *adev) 257 { 258 u32 tmp; 259 int i, j; 260 261 /* Initialize HDP */ 262 for (i = 0, j = 0; i < 32; i++, j += 0x6) { 263 WREG32((0xb05 + j), 0x00000000); 264 WREG32((0xb06 + j), 0x00000000); 265 WREG32((0xb07 + j), 0x00000000); 266 WREG32((0xb08 + j), 0x00000000); 267 WREG32((0xb09 + j), 0x00000000); 268 } 269 WREG32(mmHDP_REG_COHERENCY_FLUSH_CNTL, 0); 270 271 if (gmc_v7_0_wait_for_idle((void *)adev)) { 272 dev_warn(adev->dev, "Wait for MC idle timedout !\n"); 273 } 274 if (adev->mode_info.num_crtc) { 275 /* Lockout access through VGA aperture*/ 276 tmp = RREG32(mmVGA_HDP_CONTROL); 277 tmp = REG_SET_FIELD(tmp, VGA_HDP_CONTROL, VGA_MEMORY_DISABLE, 1); 278 WREG32(mmVGA_HDP_CONTROL, tmp); 279 280 /* disable VGA render */ 281 tmp = RREG32(mmVGA_RENDER_CONTROL); 282 tmp = REG_SET_FIELD(tmp, VGA_RENDER_CONTROL, VGA_VSTATUS_CNTL, 0); 283 WREG32(mmVGA_RENDER_CONTROL, tmp); 284 } 285 /* Update configuration */ 286 WREG32(mmMC_VM_SYSTEM_APERTURE_LOW_ADDR, 287 adev->gmc.vram_start >> 12); 288 WREG32(mmMC_VM_SYSTEM_APERTURE_HIGH_ADDR, 289 adev->gmc.vram_end >> 12); 290 WREG32(mmMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR, 291 adev->vram_scratch.gpu_addr >> 12); 292 WREG32(mmMC_VM_AGP_BASE, 0); 293 WREG32(mmMC_VM_AGP_TOP, 0x0FFFFFFF); 294 WREG32(mmMC_VM_AGP_BOT, 0x0FFFFFFF); 295 if (gmc_v7_0_wait_for_idle((void *)adev)) { 296 dev_warn(adev->dev, "Wait for MC idle timedout !\n"); 297 } 298 299 WREG32(mmBIF_FB_EN, BIF_FB_EN__FB_READ_EN_MASK | BIF_FB_EN__FB_WRITE_EN_MASK); 300 301 tmp = RREG32(mmHDP_MISC_CNTL); 302 tmp = REG_SET_FIELD(tmp, HDP_MISC_CNTL, FLUSH_INVALIDATE_CACHE, 0); 303 WREG32(mmHDP_MISC_CNTL, tmp); 304 305 tmp = RREG32(mmHDP_HOST_PATH_CNTL); 306 WREG32(mmHDP_HOST_PATH_CNTL, tmp); 307 } 308 309 /** 310 * gmc_v7_0_mc_init - initialize the memory controller driver params 311 * 312 * @adev: amdgpu_device pointer 313 * 314 * Look up the amount of vram, vram width, and decide how to place 315 * vram and gart within the GPU's physical address space (CIK). 316 * Returns 0 for success. 317 */ 318 static int gmc_v7_0_mc_init(struct amdgpu_device *adev) 319 { 320 int r; 321 322 adev->gmc.vram_width = amdgpu_atombios_get_vram_width(adev); 323 if (!adev->gmc.vram_width) { 324 u32 tmp; 325 int chansize, numchan; 326 327 /* Get VRAM informations */ 328 tmp = RREG32(mmMC_ARB_RAMCFG); 329 if (REG_GET_FIELD(tmp, MC_ARB_RAMCFG, CHANSIZE)) { 330 chansize = 64; 331 } else { 332 chansize = 32; 333 } 334 tmp = RREG32(mmMC_SHARED_CHMAP); 335 switch (REG_GET_FIELD(tmp, MC_SHARED_CHMAP, NOOFCHAN)) { 336 case 0: 337 default: 338 numchan = 1; 339 break; 340 case 1: 341 numchan = 2; 342 break; 343 case 2: 344 numchan = 4; 345 break; 346 case 3: 347 numchan = 8; 348 break; 349 case 4: 350 numchan = 3; 351 break; 352 case 5: 353 numchan = 6; 354 break; 355 case 6: 356 numchan = 10; 357 break; 358 case 7: 359 numchan = 12; 360 break; 361 case 8: 362 numchan = 16; 363 break; 364 } 365 adev->gmc.vram_width = numchan * chansize; 366 } 367 /* size in MB on si */ 368 adev->gmc.mc_vram_size = RREG32(mmCONFIG_MEMSIZE) * 1024ULL * 1024ULL; 369 adev->gmc.real_vram_size = RREG32(mmCONFIG_MEMSIZE) * 1024ULL * 1024ULL; 370 371 if (!(adev->flags & AMD_IS_APU)) { 372 r = amdgpu_device_resize_fb_bar(adev); 373 if (r) 374 return r; 375 } 376 adev->gmc.aper_base = pci_resource_start(adev->pdev, 0); 377 adev->gmc.aper_size = pci_resource_len(adev->pdev, 0); 378 379 #ifdef CONFIG_X86_64 380 if (adev->flags & AMD_IS_APU) { 381 adev->gmc.aper_base = ((u64)RREG32(mmMC_VM_FB_OFFSET)) << 22; 382 adev->gmc.aper_size = adev->gmc.real_vram_size; 383 } 384 #endif 385 386 /* In case the PCI BAR is larger than the actual amount of vram */ 387 adev->gmc.visible_vram_size = adev->gmc.aper_size; 388 if (adev->gmc.visible_vram_size > adev->gmc.real_vram_size) 389 adev->gmc.visible_vram_size = adev->gmc.real_vram_size; 390 391 /* set the gart size */ 392 if (amdgpu_gart_size == -1) { 393 switch (adev->asic_type) { 394 case CHIP_TOPAZ: /* no MM engines */ 395 default: 396 adev->gmc.gart_size = 256ULL << 20; 397 break; 398 #ifdef CONFIG_DRM_AMDGPU_CIK 399 case CHIP_BONAIRE: /* UVD, VCE do not support GPUVM */ 400 case CHIP_HAWAII: /* UVD, VCE do not support GPUVM */ 401 case CHIP_KAVERI: /* UVD, VCE do not support GPUVM */ 402 case CHIP_KABINI: /* UVD, VCE do not support GPUVM */ 403 case CHIP_MULLINS: /* UVD, VCE do not support GPUVM */ 404 adev->gmc.gart_size = 1024ULL << 20; 405 break; 406 #endif 407 } 408 } else { 409 adev->gmc.gart_size = (u64)amdgpu_gart_size << 20; 410 } 411 412 gmc_v7_0_vram_gtt_location(adev, &adev->gmc); 413 414 return 0; 415 } 416 417 /* 418 * GART 419 * VMID 0 is the physical GPU addresses as used by the kernel. 420 * VMIDs 1-15 are used for userspace clients and are handled 421 * by the amdgpu vm/hsa code. 422 */ 423 424 /** 425 * gmc_v7_0_flush_gpu_tlb - gart tlb flush callback 426 * 427 * @adev: amdgpu_device pointer 428 * @vmid: vm instance to flush 429 * 430 * Flush the TLB for the requested page table (CIK). 431 */ 432 static void gmc_v7_0_flush_gpu_tlb(struct amdgpu_device *adev, uint32_t vmid) 433 { 434 /* bits 0-15 are the VM contexts0-15 */ 435 WREG32(mmVM_INVALIDATE_REQUEST, 1 << vmid); 436 } 437 438 static uint64_t gmc_v7_0_emit_flush_gpu_tlb(struct amdgpu_ring *ring, 439 unsigned vmid, uint64_t pd_addr) 440 { 441 uint32_t reg; 442 443 if (vmid < 8) 444 reg = mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR + vmid; 445 else 446 reg = mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + vmid - 8; 447 amdgpu_ring_emit_wreg(ring, reg, pd_addr >> 12); 448 449 /* bits 0-15 are the VM contexts0-15 */ 450 amdgpu_ring_emit_wreg(ring, mmVM_INVALIDATE_REQUEST, 1 << vmid); 451 452 return pd_addr; 453 } 454 455 static void gmc_v7_0_emit_pasid_mapping(struct amdgpu_ring *ring, unsigned vmid, 456 unsigned pasid) 457 { 458 amdgpu_ring_emit_wreg(ring, mmIH_VMID_0_LUT + vmid, pasid); 459 } 460 461 /** 462 * gmc_v7_0_set_pte_pde - update the page tables using MMIO 463 * 464 * @adev: amdgpu_device pointer 465 * @cpu_pt_addr: cpu address of the page table 466 * @gpu_page_idx: entry in the page table to update 467 * @addr: dst addr to write into pte/pde 468 * @flags: access flags 469 * 470 * Update the page tables using the CPU. 471 */ 472 static int gmc_v7_0_set_pte_pde(struct amdgpu_device *adev, void *cpu_pt_addr, 473 uint32_t gpu_page_idx, uint64_t addr, 474 uint64_t flags) 475 { 476 void __iomem *ptr = (void *)cpu_pt_addr; 477 uint64_t value; 478 479 value = addr & 0xFFFFFFFFFFFFF000ULL; 480 value |= flags; 481 writeq(value, ptr + (gpu_page_idx * 8)); 482 483 return 0; 484 } 485 486 static uint64_t gmc_v7_0_get_vm_pte_flags(struct amdgpu_device *adev, 487 uint32_t flags) 488 { 489 uint64_t pte_flag = 0; 490 491 if (flags & AMDGPU_VM_PAGE_READABLE) 492 pte_flag |= AMDGPU_PTE_READABLE; 493 if (flags & AMDGPU_VM_PAGE_WRITEABLE) 494 pte_flag |= AMDGPU_PTE_WRITEABLE; 495 if (flags & AMDGPU_VM_PAGE_PRT) 496 pte_flag |= AMDGPU_PTE_PRT; 497 498 return pte_flag; 499 } 500 501 static void gmc_v7_0_get_vm_pde(struct amdgpu_device *adev, int level, 502 uint64_t *addr, uint64_t *flags) 503 { 504 BUG_ON(*addr & 0xFFFFFF0000000FFFULL); 505 } 506 507 /** 508 * gmc_v8_0_set_fault_enable_default - update VM fault handling 509 * 510 * @adev: amdgpu_device pointer 511 * @value: true redirects VM faults to the default page 512 */ 513 static void gmc_v7_0_set_fault_enable_default(struct amdgpu_device *adev, 514 bool value) 515 { 516 u32 tmp; 517 518 tmp = RREG32(mmVM_CONTEXT1_CNTL); 519 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, 520 RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, value); 521 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, 522 DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, value); 523 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, 524 PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, value); 525 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, 526 VALID_PROTECTION_FAULT_ENABLE_DEFAULT, value); 527 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, 528 READ_PROTECTION_FAULT_ENABLE_DEFAULT, value); 529 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, 530 WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, value); 531 WREG32(mmVM_CONTEXT1_CNTL, tmp); 532 } 533 534 /** 535 * gmc_v7_0_set_prt - set PRT VM fault 536 * 537 * @adev: amdgpu_device pointer 538 * @enable: enable/disable VM fault handling for PRT 539 */ 540 static void gmc_v7_0_set_prt(struct amdgpu_device *adev, bool enable) 541 { 542 uint32_t tmp; 543 544 if (enable && !adev->gmc.prt_warning) { 545 dev_warn(adev->dev, "Disabling VM faults because of PRT request!\n"); 546 adev->gmc.prt_warning = true; 547 } 548 549 tmp = RREG32(mmVM_PRT_CNTL); 550 tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL, 551 CB_DISABLE_READ_FAULT_ON_UNMAPPED_ACCESS, enable); 552 tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL, 553 CB_DISABLE_WRITE_FAULT_ON_UNMAPPED_ACCESS, enable); 554 tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL, 555 TC_DISABLE_READ_FAULT_ON_UNMAPPED_ACCESS, enable); 556 tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL, 557 TC_DISABLE_WRITE_FAULT_ON_UNMAPPED_ACCESS, enable); 558 tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL, 559 L2_CACHE_STORE_INVALID_ENTRIES, enable); 560 tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL, 561 L1_TLB_STORE_INVALID_ENTRIES, enable); 562 tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL, 563 MASK_PDE0_FAULT, enable); 564 WREG32(mmVM_PRT_CNTL, tmp); 565 566 if (enable) { 567 uint32_t low = AMDGPU_VA_RESERVED_SIZE >> AMDGPU_GPU_PAGE_SHIFT; 568 uint32_t high = adev->vm_manager.max_pfn - 569 (AMDGPU_VA_RESERVED_SIZE >> AMDGPU_GPU_PAGE_SHIFT); 570 571 WREG32(mmVM_PRT_APERTURE0_LOW_ADDR, low); 572 WREG32(mmVM_PRT_APERTURE1_LOW_ADDR, low); 573 WREG32(mmVM_PRT_APERTURE2_LOW_ADDR, low); 574 WREG32(mmVM_PRT_APERTURE3_LOW_ADDR, low); 575 WREG32(mmVM_PRT_APERTURE0_HIGH_ADDR, high); 576 WREG32(mmVM_PRT_APERTURE1_HIGH_ADDR, high); 577 WREG32(mmVM_PRT_APERTURE2_HIGH_ADDR, high); 578 WREG32(mmVM_PRT_APERTURE3_HIGH_ADDR, high); 579 } else { 580 WREG32(mmVM_PRT_APERTURE0_LOW_ADDR, 0xfffffff); 581 WREG32(mmVM_PRT_APERTURE1_LOW_ADDR, 0xfffffff); 582 WREG32(mmVM_PRT_APERTURE2_LOW_ADDR, 0xfffffff); 583 WREG32(mmVM_PRT_APERTURE3_LOW_ADDR, 0xfffffff); 584 WREG32(mmVM_PRT_APERTURE0_HIGH_ADDR, 0x0); 585 WREG32(mmVM_PRT_APERTURE1_HIGH_ADDR, 0x0); 586 WREG32(mmVM_PRT_APERTURE2_HIGH_ADDR, 0x0); 587 WREG32(mmVM_PRT_APERTURE3_HIGH_ADDR, 0x0); 588 } 589 } 590 591 /** 592 * gmc_v7_0_gart_enable - gart enable 593 * 594 * @adev: amdgpu_device pointer 595 * 596 * This sets up the TLBs, programs the page tables for VMID0, 597 * sets up the hw for VMIDs 1-15 which are allocated on 598 * demand, and sets up the global locations for the LDS, GDS, 599 * and GPUVM for FSA64 clients (CIK). 600 * Returns 0 for success, errors for failure. 601 */ 602 static int gmc_v7_0_gart_enable(struct amdgpu_device *adev) 603 { 604 int r, i; 605 u32 tmp, field; 606 607 if (adev->gart.robj == NULL) { 608 dev_err(adev->dev, "No VRAM object for PCIE GART.\n"); 609 return -EINVAL; 610 } 611 r = amdgpu_gart_table_vram_pin(adev); 612 if (r) 613 return r; 614 /* Setup TLB control */ 615 tmp = RREG32(mmMC_VM_MX_L1_TLB_CNTL); 616 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 1); 617 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_FRAGMENT_PROCESSING, 1); 618 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, SYSTEM_ACCESS_MODE, 3); 619 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_ADVANCED_DRIVER_MODEL, 1); 620 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, SYSTEM_APERTURE_UNMAPPED_ACCESS, 0); 621 WREG32(mmMC_VM_MX_L1_TLB_CNTL, tmp); 622 /* Setup L2 cache */ 623 tmp = RREG32(mmVM_L2_CNTL); 624 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_CACHE, 1); 625 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_FRAGMENT_PROCESSING, 1); 626 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE, 1); 627 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_PDE0_CACHE_LRU_UPDATE_BY_WRITE, 1); 628 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, EFFECTIVE_L2_QUEUE_SIZE, 7); 629 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, CONTEXT1_IDENTITY_ACCESS_MODE, 1); 630 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_DEFAULT_PAGE_OUT_TO_SYSTEM_MEMORY, 1); 631 WREG32(mmVM_L2_CNTL, tmp); 632 tmp = REG_SET_FIELD(0, VM_L2_CNTL2, INVALIDATE_ALL_L1_TLBS, 1); 633 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL2, INVALIDATE_L2_CACHE, 1); 634 WREG32(mmVM_L2_CNTL2, tmp); 635 636 field = adev->vm_manager.fragment_size; 637 tmp = RREG32(mmVM_L2_CNTL3); 638 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, L2_CACHE_BIGK_ASSOCIATIVITY, 1); 639 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, BANK_SELECT, field); 640 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, L2_CACHE_BIGK_FRAGMENT_SIZE, field); 641 WREG32(mmVM_L2_CNTL3, tmp); 642 /* setup context0 */ 643 WREG32(mmVM_CONTEXT0_PAGE_TABLE_START_ADDR, adev->gmc.gart_start >> 12); 644 WREG32(mmVM_CONTEXT0_PAGE_TABLE_END_ADDR, adev->gmc.gart_end >> 12); 645 WREG32(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR, adev->gart.table_addr >> 12); 646 WREG32(mmVM_CONTEXT0_PROTECTION_FAULT_DEFAULT_ADDR, 647 (u32)(adev->dummy_page_addr >> 12)); 648 WREG32(mmVM_CONTEXT0_CNTL2, 0); 649 tmp = RREG32(mmVM_CONTEXT0_CNTL); 650 tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, ENABLE_CONTEXT, 1); 651 tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, PAGE_TABLE_DEPTH, 0); 652 tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1); 653 WREG32(mmVM_CONTEXT0_CNTL, tmp); 654 655 WREG32(0x575, 0); 656 WREG32(0x576, 0); 657 WREG32(0x577, 0); 658 659 /* empty context1-15 */ 660 /* FIXME start with 4G, once using 2 level pt switch to full 661 * vm size space 662 */ 663 /* set vm size, must be a multiple of 4 */ 664 WREG32(mmVM_CONTEXT1_PAGE_TABLE_START_ADDR, 0); 665 WREG32(mmVM_CONTEXT1_PAGE_TABLE_END_ADDR, adev->vm_manager.max_pfn - 1); 666 for (i = 1; i < 16; i++) { 667 if (i < 8) 668 WREG32(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR + i, 669 adev->gart.table_addr >> 12); 670 else 671 WREG32(mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + i - 8, 672 adev->gart.table_addr >> 12); 673 } 674 675 /* enable context1-15 */ 676 WREG32(mmVM_CONTEXT1_PROTECTION_FAULT_DEFAULT_ADDR, 677 (u32)(adev->dummy_page_addr >> 12)); 678 WREG32(mmVM_CONTEXT1_CNTL2, 4); 679 tmp = RREG32(mmVM_CONTEXT1_CNTL); 680 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, ENABLE_CONTEXT, 1); 681 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, PAGE_TABLE_DEPTH, 1); 682 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, PAGE_TABLE_BLOCK_SIZE, 683 adev->vm_manager.block_size - 9); 684 WREG32(mmVM_CONTEXT1_CNTL, tmp); 685 if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_ALWAYS) 686 gmc_v7_0_set_fault_enable_default(adev, false); 687 else 688 gmc_v7_0_set_fault_enable_default(adev, true); 689 690 if (adev->asic_type == CHIP_KAVERI) { 691 tmp = RREG32(mmCHUB_CONTROL); 692 tmp &= ~BYPASS_VM; 693 WREG32(mmCHUB_CONTROL, tmp); 694 } 695 696 gmc_v7_0_flush_gpu_tlb(adev, 0); 697 DRM_INFO("PCIE GART of %uM enabled (table at 0x%016llX).\n", 698 (unsigned)(adev->gmc.gart_size >> 20), 699 (unsigned long long)adev->gart.table_addr); 700 adev->gart.ready = true; 701 return 0; 702 } 703 704 static int gmc_v7_0_gart_init(struct amdgpu_device *adev) 705 { 706 int r; 707 708 if (adev->gart.robj) { 709 WARN(1, "R600 PCIE GART already initialized\n"); 710 return 0; 711 } 712 /* Initialize common gart structure */ 713 r = amdgpu_gart_init(adev); 714 if (r) 715 return r; 716 adev->gart.table_size = adev->gart.num_gpu_pages * 8; 717 adev->gart.gart_pte_flags = 0; 718 return amdgpu_gart_table_vram_alloc(adev); 719 } 720 721 /** 722 * gmc_v7_0_gart_disable - gart disable 723 * 724 * @adev: amdgpu_device pointer 725 * 726 * This disables all VM page table (CIK). 727 */ 728 static void gmc_v7_0_gart_disable(struct amdgpu_device *adev) 729 { 730 u32 tmp; 731 732 /* Disable all tables */ 733 WREG32(mmVM_CONTEXT0_CNTL, 0); 734 WREG32(mmVM_CONTEXT1_CNTL, 0); 735 /* Setup TLB control */ 736 tmp = RREG32(mmMC_VM_MX_L1_TLB_CNTL); 737 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 0); 738 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_FRAGMENT_PROCESSING, 0); 739 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_ADVANCED_DRIVER_MODEL, 0); 740 WREG32(mmMC_VM_MX_L1_TLB_CNTL, tmp); 741 /* Setup L2 cache */ 742 tmp = RREG32(mmVM_L2_CNTL); 743 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_CACHE, 0); 744 WREG32(mmVM_L2_CNTL, tmp); 745 WREG32(mmVM_L2_CNTL2, 0); 746 amdgpu_gart_table_vram_unpin(adev); 747 } 748 749 /** 750 * gmc_v7_0_vm_decode_fault - print human readable fault info 751 * 752 * @adev: amdgpu_device pointer 753 * @status: VM_CONTEXT1_PROTECTION_FAULT_STATUS register value 754 * @addr: VM_CONTEXT1_PROTECTION_FAULT_ADDR register value 755 * 756 * Print human readable fault information (CIK). 757 */ 758 static void gmc_v7_0_vm_decode_fault(struct amdgpu_device *adev, u32 status, 759 u32 addr, u32 mc_client, unsigned pasid) 760 { 761 u32 vmid = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS, VMID); 762 u32 protections = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS, 763 PROTECTIONS); 764 char block[5] = { mc_client >> 24, (mc_client >> 16) & 0xff, 765 (mc_client >> 8) & 0xff, mc_client & 0xff, 0 }; 766 u32 mc_id; 767 768 mc_id = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS, 769 MEMORY_CLIENT_ID); 770 771 dev_err(adev->dev, "VM fault (0x%02x, vmid %d, pasid %d) at page %u, %s from '%s' (0x%08x) (%d)\n", 772 protections, vmid, pasid, addr, 773 REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS, 774 MEMORY_CLIENT_RW) ? 775 "write" : "read", block, mc_client, mc_id); 776 } 777 778 779 static const u32 mc_cg_registers[] = { 780 mmMC_HUB_MISC_HUB_CG, 781 mmMC_HUB_MISC_SIP_CG, 782 mmMC_HUB_MISC_VM_CG, 783 mmMC_XPB_CLK_GAT, 784 mmATC_MISC_CG, 785 mmMC_CITF_MISC_WR_CG, 786 mmMC_CITF_MISC_RD_CG, 787 mmMC_CITF_MISC_VM_CG, 788 mmVM_L2_CG, 789 }; 790 791 static const u32 mc_cg_ls_en[] = { 792 MC_HUB_MISC_HUB_CG__MEM_LS_ENABLE_MASK, 793 MC_HUB_MISC_SIP_CG__MEM_LS_ENABLE_MASK, 794 MC_HUB_MISC_VM_CG__MEM_LS_ENABLE_MASK, 795 MC_XPB_CLK_GAT__MEM_LS_ENABLE_MASK, 796 ATC_MISC_CG__MEM_LS_ENABLE_MASK, 797 MC_CITF_MISC_WR_CG__MEM_LS_ENABLE_MASK, 798 MC_CITF_MISC_RD_CG__MEM_LS_ENABLE_MASK, 799 MC_CITF_MISC_VM_CG__MEM_LS_ENABLE_MASK, 800 VM_L2_CG__MEM_LS_ENABLE_MASK, 801 }; 802 803 static const u32 mc_cg_en[] = { 804 MC_HUB_MISC_HUB_CG__ENABLE_MASK, 805 MC_HUB_MISC_SIP_CG__ENABLE_MASK, 806 MC_HUB_MISC_VM_CG__ENABLE_MASK, 807 MC_XPB_CLK_GAT__ENABLE_MASK, 808 ATC_MISC_CG__ENABLE_MASK, 809 MC_CITF_MISC_WR_CG__ENABLE_MASK, 810 MC_CITF_MISC_RD_CG__ENABLE_MASK, 811 MC_CITF_MISC_VM_CG__ENABLE_MASK, 812 VM_L2_CG__ENABLE_MASK, 813 }; 814 815 static void gmc_v7_0_enable_mc_ls(struct amdgpu_device *adev, 816 bool enable) 817 { 818 int i; 819 u32 orig, data; 820 821 for (i = 0; i < ARRAY_SIZE(mc_cg_registers); i++) { 822 orig = data = RREG32(mc_cg_registers[i]); 823 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_MC_LS)) 824 data |= mc_cg_ls_en[i]; 825 else 826 data &= ~mc_cg_ls_en[i]; 827 if (data != orig) 828 WREG32(mc_cg_registers[i], data); 829 } 830 } 831 832 static void gmc_v7_0_enable_mc_mgcg(struct amdgpu_device *adev, 833 bool enable) 834 { 835 int i; 836 u32 orig, data; 837 838 for (i = 0; i < ARRAY_SIZE(mc_cg_registers); i++) { 839 orig = data = RREG32(mc_cg_registers[i]); 840 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_MC_MGCG)) 841 data |= mc_cg_en[i]; 842 else 843 data &= ~mc_cg_en[i]; 844 if (data != orig) 845 WREG32(mc_cg_registers[i], data); 846 } 847 } 848 849 static void gmc_v7_0_enable_bif_mgls(struct amdgpu_device *adev, 850 bool enable) 851 { 852 u32 orig, data; 853 854 orig = data = RREG32_PCIE(ixPCIE_CNTL2); 855 856 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_BIF_LS)) { 857 data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_LS_EN, 1); 858 data = REG_SET_FIELD(data, PCIE_CNTL2, MST_MEM_LS_EN, 1); 859 data = REG_SET_FIELD(data, PCIE_CNTL2, REPLAY_MEM_LS_EN, 1); 860 data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_AGGRESSIVE_LS_EN, 1); 861 } else { 862 data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_LS_EN, 0); 863 data = REG_SET_FIELD(data, PCIE_CNTL2, MST_MEM_LS_EN, 0); 864 data = REG_SET_FIELD(data, PCIE_CNTL2, REPLAY_MEM_LS_EN, 0); 865 data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_AGGRESSIVE_LS_EN, 0); 866 } 867 868 if (orig != data) 869 WREG32_PCIE(ixPCIE_CNTL2, data); 870 } 871 872 static void gmc_v7_0_enable_hdp_mgcg(struct amdgpu_device *adev, 873 bool enable) 874 { 875 u32 orig, data; 876 877 orig = data = RREG32(mmHDP_HOST_PATH_CNTL); 878 879 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_HDP_MGCG)) 880 data = REG_SET_FIELD(data, HDP_HOST_PATH_CNTL, CLOCK_GATING_DIS, 0); 881 else 882 data = REG_SET_FIELD(data, HDP_HOST_PATH_CNTL, CLOCK_GATING_DIS, 1); 883 884 if (orig != data) 885 WREG32(mmHDP_HOST_PATH_CNTL, data); 886 } 887 888 static void gmc_v7_0_enable_hdp_ls(struct amdgpu_device *adev, 889 bool enable) 890 { 891 u32 orig, data; 892 893 orig = data = RREG32(mmHDP_MEM_POWER_LS); 894 895 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_HDP_LS)) 896 data = REG_SET_FIELD(data, HDP_MEM_POWER_LS, LS_ENABLE, 1); 897 else 898 data = REG_SET_FIELD(data, HDP_MEM_POWER_LS, LS_ENABLE, 0); 899 900 if (orig != data) 901 WREG32(mmHDP_MEM_POWER_LS, data); 902 } 903 904 static int gmc_v7_0_convert_vram_type(int mc_seq_vram_type) 905 { 906 switch (mc_seq_vram_type) { 907 case MC_SEQ_MISC0__MT__GDDR1: 908 return AMDGPU_VRAM_TYPE_GDDR1; 909 case MC_SEQ_MISC0__MT__DDR2: 910 return AMDGPU_VRAM_TYPE_DDR2; 911 case MC_SEQ_MISC0__MT__GDDR3: 912 return AMDGPU_VRAM_TYPE_GDDR3; 913 case MC_SEQ_MISC0__MT__GDDR4: 914 return AMDGPU_VRAM_TYPE_GDDR4; 915 case MC_SEQ_MISC0__MT__GDDR5: 916 return AMDGPU_VRAM_TYPE_GDDR5; 917 case MC_SEQ_MISC0__MT__HBM: 918 return AMDGPU_VRAM_TYPE_HBM; 919 case MC_SEQ_MISC0__MT__DDR3: 920 return AMDGPU_VRAM_TYPE_DDR3; 921 default: 922 return AMDGPU_VRAM_TYPE_UNKNOWN; 923 } 924 } 925 926 static int gmc_v7_0_early_init(void *handle) 927 { 928 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 929 930 gmc_v7_0_set_gmc_funcs(adev); 931 gmc_v7_0_set_irq_funcs(adev); 932 933 adev->gmc.shared_aperture_start = 0x2000000000000000ULL; 934 adev->gmc.shared_aperture_end = 935 adev->gmc.shared_aperture_start + (4ULL << 30) - 1; 936 adev->gmc.private_aperture_start = 937 adev->gmc.shared_aperture_end + 1; 938 adev->gmc.private_aperture_end = 939 adev->gmc.private_aperture_start + (4ULL << 30) - 1; 940 941 return 0; 942 } 943 944 static int gmc_v7_0_late_init(void *handle) 945 { 946 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 947 948 amdgpu_bo_late_init(adev); 949 950 if (amdgpu_vm_fault_stop != AMDGPU_VM_FAULT_STOP_ALWAYS) 951 return amdgpu_irq_get(adev, &adev->gmc.vm_fault, 0); 952 else 953 return 0; 954 } 955 956 static unsigned gmc_v7_0_get_vbios_fb_size(struct amdgpu_device *adev) 957 { 958 u32 d1vga_control = RREG32(mmD1VGA_CONTROL); 959 unsigned size; 960 961 if (REG_GET_FIELD(d1vga_control, D1VGA_CONTROL, D1VGA_MODE_ENABLE)) { 962 size = 9 * 1024 * 1024; /* reserve 8MB for vga emulator and 1 MB for FB */ 963 } else { 964 u32 viewport = RREG32(mmVIEWPORT_SIZE); 965 size = (REG_GET_FIELD(viewport, VIEWPORT_SIZE, VIEWPORT_HEIGHT) * 966 REG_GET_FIELD(viewport, VIEWPORT_SIZE, VIEWPORT_WIDTH) * 967 4); 968 } 969 /* return 0 if the pre-OS buffer uses up most of vram */ 970 if ((adev->gmc.real_vram_size - size) < (8 * 1024 * 1024)) 971 return 0; 972 return size; 973 } 974 975 static int gmc_v7_0_sw_init(void *handle) 976 { 977 int r; 978 int dma_bits; 979 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 980 981 if (adev->flags & AMD_IS_APU) { 982 adev->gmc.vram_type = AMDGPU_VRAM_TYPE_UNKNOWN; 983 } else { 984 u32 tmp = RREG32(mmMC_SEQ_MISC0); 985 tmp &= MC_SEQ_MISC0__MT__MASK; 986 adev->gmc.vram_type = gmc_v7_0_convert_vram_type(tmp); 987 } 988 989 r = amdgpu_irq_add_id(adev, AMDGPU_IH_CLIENTID_LEGACY, VISLANDS30_IV_SRCID_GFX_PAGE_INV_FAULT, &adev->gmc.vm_fault); 990 if (r) 991 return r; 992 993 r = amdgpu_irq_add_id(adev, AMDGPU_IH_CLIENTID_LEGACY, VISLANDS30_IV_SRCID_GFX_MEM_PROT_FAULT, &adev->gmc.vm_fault); 994 if (r) 995 return r; 996 997 /* Adjust VM size here. 998 * Currently set to 4GB ((1 << 20) 4k pages). 999 * Max GPUVM size for cayman and SI is 40 bits. 1000 */ 1001 amdgpu_vm_adjust_size(adev, 64, 9, 1, 40); 1002 1003 /* Set the internal MC address mask 1004 * This is the max address of the GPU's 1005 * internal address space. 1006 */ 1007 adev->gmc.mc_mask = 0xffffffffffULL; /* 40 bit MC */ 1008 1009 /* set DMA mask + need_dma32 flags. 1010 * PCIE - can handle 40-bits. 1011 * IGP - can handle 40-bits 1012 * PCI - dma32 for legacy pci gart, 40 bits on newer asics 1013 */ 1014 adev->need_dma32 = false; 1015 dma_bits = adev->need_dma32 ? 32 : 40; 1016 r = pci_set_dma_mask(adev->pdev, DMA_BIT_MASK(dma_bits)); 1017 if (r) { 1018 adev->need_dma32 = true; 1019 dma_bits = 32; 1020 pr_warn("amdgpu: No suitable DMA available\n"); 1021 } 1022 r = pci_set_consistent_dma_mask(adev->pdev, DMA_BIT_MASK(dma_bits)); 1023 if (r) { 1024 pci_set_consistent_dma_mask(adev->pdev, DMA_BIT_MASK(32)); 1025 pr_warn("amdgpu: No coherent DMA available\n"); 1026 } 1027 #if 0 1028 adev->need_swiotlb = drm_get_max_iomem() > ((u64)1 << dma_bits); 1029 #endif 1030 /* XXX DragonFly: FreeBSD implementation returns false 1031 * drm-kmod excerpt: 1032 * Only used in combination with CONFIG_SWIOTLB in v4.17 1033 * BSDFIXME: Let's say we can dma all physical memory... 1034 */ 1035 adev->need_swiotlb = false; 1036 1037 r = gmc_v7_0_init_microcode(adev); 1038 if (r) { 1039 DRM_ERROR("Failed to load mc firmware!\n"); 1040 return r; 1041 } 1042 1043 r = gmc_v7_0_mc_init(adev); 1044 if (r) 1045 return r; 1046 1047 adev->gmc.stolen_size = gmc_v7_0_get_vbios_fb_size(adev); 1048 1049 /* Memory manager */ 1050 r = amdgpu_bo_init(adev); 1051 if (r) 1052 return r; 1053 1054 r = gmc_v7_0_gart_init(adev); 1055 if (r) 1056 return r; 1057 1058 /* 1059 * number of VMs 1060 * VMID 0 is reserved for System 1061 * amdgpu graphics/compute will use VMIDs 1-7 1062 * amdkfd will use VMIDs 8-15 1063 */ 1064 adev->vm_manager.id_mgr[0].num_ids = AMDGPU_NUM_OF_VMIDS; 1065 amdgpu_vm_manager_init(adev); 1066 1067 /* base offset of vram pages */ 1068 if (adev->flags & AMD_IS_APU) { 1069 u64 tmp = RREG32(mmMC_VM_FB_OFFSET); 1070 1071 tmp <<= 22; 1072 adev->vm_manager.vram_base_offset = tmp; 1073 } else { 1074 adev->vm_manager.vram_base_offset = 0; 1075 } 1076 1077 adev->gmc.vm_fault_info = kmalloc(sizeof(struct kfd_vm_fault_info), 1078 M_DRM, 1079 GFP_KERNEL); 1080 if (!adev->gmc.vm_fault_info) 1081 return -ENOMEM; 1082 atomic_set(&adev->gmc.vm_fault_info_updated, 0); 1083 1084 return 0; 1085 } 1086 1087 static int gmc_v7_0_sw_fini(void *handle) 1088 { 1089 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1090 1091 amdgpu_gem_force_release(adev); 1092 amdgpu_vm_manager_fini(adev); 1093 kfree(adev->gmc.vm_fault_info); 1094 amdgpu_gart_table_vram_free(adev); 1095 amdgpu_bo_fini(adev); 1096 amdgpu_gart_fini(adev); 1097 release_firmware(adev->gmc.fw); 1098 adev->gmc.fw = NULL; 1099 1100 return 0; 1101 } 1102 1103 static int gmc_v7_0_hw_init(void *handle) 1104 { 1105 int r; 1106 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1107 1108 gmc_v7_0_init_golden_registers(adev); 1109 1110 gmc_v7_0_mc_program(adev); 1111 1112 if (!(adev->flags & AMD_IS_APU)) { 1113 r = gmc_v7_0_mc_load_microcode(adev); 1114 if (r) { 1115 DRM_ERROR("Failed to load MC firmware!\n"); 1116 return r; 1117 } 1118 } 1119 1120 r = gmc_v7_0_gart_enable(adev); 1121 if (r) 1122 return r; 1123 1124 return r; 1125 } 1126 1127 static int gmc_v7_0_hw_fini(void *handle) 1128 { 1129 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1130 1131 amdgpu_irq_put(adev, &adev->gmc.vm_fault, 0); 1132 gmc_v7_0_gart_disable(adev); 1133 1134 return 0; 1135 } 1136 1137 static int gmc_v7_0_suspend(void *handle) 1138 { 1139 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1140 1141 gmc_v7_0_hw_fini(adev); 1142 1143 return 0; 1144 } 1145 1146 static int gmc_v7_0_resume(void *handle) 1147 { 1148 int r; 1149 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1150 1151 r = gmc_v7_0_hw_init(adev); 1152 if (r) 1153 return r; 1154 1155 amdgpu_vmid_reset_all(adev); 1156 1157 return 0; 1158 } 1159 1160 static bool gmc_v7_0_is_idle(void *handle) 1161 { 1162 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1163 u32 tmp = RREG32(mmSRBM_STATUS); 1164 1165 if (tmp & (SRBM_STATUS__MCB_BUSY_MASK | SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK | 1166 SRBM_STATUS__MCC_BUSY_MASK | SRBM_STATUS__MCD_BUSY_MASK | SRBM_STATUS__VMC_BUSY_MASK)) 1167 return false; 1168 1169 return true; 1170 } 1171 1172 static int gmc_v7_0_wait_for_idle(void *handle) 1173 { 1174 unsigned i; 1175 u32 tmp; 1176 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1177 1178 for (i = 0; i < adev->usec_timeout; i++) { 1179 /* read MC_STATUS */ 1180 tmp = RREG32(mmSRBM_STATUS) & (SRBM_STATUS__MCB_BUSY_MASK | 1181 SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK | 1182 SRBM_STATUS__MCC_BUSY_MASK | 1183 SRBM_STATUS__MCD_BUSY_MASK | 1184 SRBM_STATUS__VMC_BUSY_MASK); 1185 if (!tmp) 1186 return 0; 1187 udelay(1); 1188 } 1189 return -ETIMEDOUT; 1190 1191 } 1192 1193 static int gmc_v7_0_soft_reset(void *handle) 1194 { 1195 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1196 u32 srbm_soft_reset = 0; 1197 u32 tmp = RREG32(mmSRBM_STATUS); 1198 1199 if (tmp & SRBM_STATUS__VMC_BUSY_MASK) 1200 srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset, 1201 SRBM_SOFT_RESET, SOFT_RESET_VMC, 1); 1202 1203 if (tmp & (SRBM_STATUS__MCB_BUSY_MASK | SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK | 1204 SRBM_STATUS__MCC_BUSY_MASK | SRBM_STATUS__MCD_BUSY_MASK)) { 1205 if (!(adev->flags & AMD_IS_APU)) 1206 srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset, 1207 SRBM_SOFT_RESET, SOFT_RESET_MC, 1); 1208 } 1209 1210 if (srbm_soft_reset) { 1211 gmc_v7_0_mc_stop(adev); 1212 if (gmc_v7_0_wait_for_idle((void *)adev)) { 1213 dev_warn(adev->dev, "Wait for GMC idle timed out !\n"); 1214 } 1215 1216 1217 tmp = RREG32(mmSRBM_SOFT_RESET); 1218 tmp |= srbm_soft_reset; 1219 dev_info(adev->dev, "SRBM_SOFT_RESET=0x%08X\n", tmp); 1220 WREG32(mmSRBM_SOFT_RESET, tmp); 1221 tmp = RREG32(mmSRBM_SOFT_RESET); 1222 1223 udelay(50); 1224 1225 tmp &= ~srbm_soft_reset; 1226 WREG32(mmSRBM_SOFT_RESET, tmp); 1227 tmp = RREG32(mmSRBM_SOFT_RESET); 1228 1229 /* Wait a little for things to settle down */ 1230 udelay(50); 1231 1232 gmc_v7_0_mc_resume(adev); 1233 udelay(50); 1234 } 1235 1236 return 0; 1237 } 1238 1239 static int gmc_v7_0_vm_fault_interrupt_state(struct amdgpu_device *adev, 1240 struct amdgpu_irq_src *src, 1241 unsigned type, 1242 enum amdgpu_interrupt_state state) 1243 { 1244 u32 tmp; 1245 u32 bits = (VM_CONTEXT1_CNTL__RANGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | 1246 VM_CONTEXT1_CNTL__DUMMY_PAGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | 1247 VM_CONTEXT1_CNTL__PDE0_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | 1248 VM_CONTEXT1_CNTL__VALID_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | 1249 VM_CONTEXT1_CNTL__READ_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | 1250 VM_CONTEXT1_CNTL__WRITE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK); 1251 1252 switch (state) { 1253 case AMDGPU_IRQ_STATE_DISABLE: 1254 /* system context */ 1255 tmp = RREG32(mmVM_CONTEXT0_CNTL); 1256 tmp &= ~bits; 1257 WREG32(mmVM_CONTEXT0_CNTL, tmp); 1258 /* VMs */ 1259 tmp = RREG32(mmVM_CONTEXT1_CNTL); 1260 tmp &= ~bits; 1261 WREG32(mmVM_CONTEXT1_CNTL, tmp); 1262 break; 1263 case AMDGPU_IRQ_STATE_ENABLE: 1264 /* system context */ 1265 tmp = RREG32(mmVM_CONTEXT0_CNTL); 1266 tmp |= bits; 1267 WREG32(mmVM_CONTEXT0_CNTL, tmp); 1268 /* VMs */ 1269 tmp = RREG32(mmVM_CONTEXT1_CNTL); 1270 tmp |= bits; 1271 WREG32(mmVM_CONTEXT1_CNTL, tmp); 1272 break; 1273 default: 1274 break; 1275 } 1276 1277 return 0; 1278 } 1279 1280 static int gmc_v7_0_process_interrupt(struct amdgpu_device *adev, 1281 struct amdgpu_irq_src *source, 1282 struct amdgpu_iv_entry *entry) 1283 { 1284 u32 addr, status, mc_client, vmid; 1285 1286 addr = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_ADDR); 1287 status = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_STATUS); 1288 mc_client = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_MCCLIENT); 1289 /* reset addr and status */ 1290 WREG32_P(mmVM_CONTEXT1_CNTL2, 1, ~1); 1291 1292 if (!addr && !status) 1293 return 0; 1294 1295 if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_FIRST) 1296 gmc_v7_0_set_fault_enable_default(adev, false); 1297 1298 if (printk_ratelimit()) { 1299 dev_err(adev->dev, "GPU fault detected: %d 0x%08x\n", 1300 entry->src_id, entry->src_data[0]); 1301 dev_err(adev->dev, " VM_CONTEXT1_PROTECTION_FAULT_ADDR 0x%08X\n", 1302 addr); 1303 dev_err(adev->dev, " VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x%08X\n", 1304 status); 1305 gmc_v7_0_vm_decode_fault(adev, status, addr, mc_client, 1306 entry->pasid); 1307 } 1308 1309 vmid = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS, 1310 VMID); 1311 if (amdgpu_amdkfd_is_kfd_vmid(adev, vmid) 1312 && !atomic_read(&adev->gmc.vm_fault_info_updated)) { 1313 struct kfd_vm_fault_info *info = adev->gmc.vm_fault_info; 1314 u32 protections = REG_GET_FIELD(status, 1315 VM_CONTEXT1_PROTECTION_FAULT_STATUS, 1316 PROTECTIONS); 1317 1318 info->vmid = vmid; 1319 info->mc_id = REG_GET_FIELD(status, 1320 VM_CONTEXT1_PROTECTION_FAULT_STATUS, 1321 MEMORY_CLIENT_ID); 1322 info->status = status; 1323 info->page_addr = addr; 1324 info->prot_valid = protections & 0x7 ? true : false; 1325 info->prot_read = protections & 0x8 ? true : false; 1326 info->prot_write = protections & 0x10 ? true : false; 1327 info->prot_exec = protections & 0x20 ? true : false; 1328 mb(); 1329 atomic_set(&adev->gmc.vm_fault_info_updated, 1); 1330 } 1331 1332 return 0; 1333 } 1334 1335 static int gmc_v7_0_set_clockgating_state(void *handle, 1336 enum amd_clockgating_state state) 1337 { 1338 bool gate = false; 1339 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1340 1341 if (state == AMD_CG_STATE_GATE) 1342 gate = true; 1343 1344 if (!(adev->flags & AMD_IS_APU)) { 1345 gmc_v7_0_enable_mc_mgcg(adev, gate); 1346 gmc_v7_0_enable_mc_ls(adev, gate); 1347 } 1348 gmc_v7_0_enable_bif_mgls(adev, gate); 1349 gmc_v7_0_enable_hdp_mgcg(adev, gate); 1350 gmc_v7_0_enable_hdp_ls(adev, gate); 1351 1352 return 0; 1353 } 1354 1355 static int gmc_v7_0_set_powergating_state(void *handle, 1356 enum amd_powergating_state state) 1357 { 1358 return 0; 1359 } 1360 1361 static const struct amd_ip_funcs gmc_v7_0_ip_funcs = { 1362 .name = "gmc_v7_0", 1363 .early_init = gmc_v7_0_early_init, 1364 .late_init = gmc_v7_0_late_init, 1365 .sw_init = gmc_v7_0_sw_init, 1366 .sw_fini = gmc_v7_0_sw_fini, 1367 .hw_init = gmc_v7_0_hw_init, 1368 .hw_fini = gmc_v7_0_hw_fini, 1369 .suspend = gmc_v7_0_suspend, 1370 .resume = gmc_v7_0_resume, 1371 .is_idle = gmc_v7_0_is_idle, 1372 .wait_for_idle = gmc_v7_0_wait_for_idle, 1373 .soft_reset = gmc_v7_0_soft_reset, 1374 .set_clockgating_state = gmc_v7_0_set_clockgating_state, 1375 .set_powergating_state = gmc_v7_0_set_powergating_state, 1376 }; 1377 1378 static const struct amdgpu_gmc_funcs gmc_v7_0_gmc_funcs = { 1379 .flush_gpu_tlb = gmc_v7_0_flush_gpu_tlb, 1380 .emit_flush_gpu_tlb = gmc_v7_0_emit_flush_gpu_tlb, 1381 .emit_pasid_mapping = gmc_v7_0_emit_pasid_mapping, 1382 .set_pte_pde = gmc_v7_0_set_pte_pde, 1383 .set_prt = gmc_v7_0_set_prt, 1384 .get_vm_pte_flags = gmc_v7_0_get_vm_pte_flags, 1385 .get_vm_pde = gmc_v7_0_get_vm_pde 1386 }; 1387 1388 static const struct amdgpu_irq_src_funcs gmc_v7_0_irq_funcs = { 1389 .set = gmc_v7_0_vm_fault_interrupt_state, 1390 .process = gmc_v7_0_process_interrupt, 1391 }; 1392 1393 static void gmc_v7_0_set_gmc_funcs(struct amdgpu_device *adev) 1394 { 1395 if (adev->gmc.gmc_funcs == NULL) 1396 adev->gmc.gmc_funcs = &gmc_v7_0_gmc_funcs; 1397 } 1398 1399 static void gmc_v7_0_set_irq_funcs(struct amdgpu_device *adev) 1400 { 1401 adev->gmc.vm_fault.num_types = 1; 1402 adev->gmc.vm_fault.funcs = &gmc_v7_0_irq_funcs; 1403 } 1404 1405 const struct amdgpu_ip_block_version gmc_v7_0_ip_block = 1406 { 1407 .type = AMD_IP_BLOCK_TYPE_GMC, 1408 .major = 7, 1409 .minor = 0, 1410 .rev = 0, 1411 .funcs = &gmc_v7_0_ip_funcs, 1412 }; 1413 1414 const struct amdgpu_ip_block_version gmc_v7_4_ip_block = 1415 { 1416 .type = AMD_IP_BLOCK_TYPE_GMC, 1417 .major = 7, 1418 .minor = 4, 1419 .rev = 0, 1420 .funcs = &gmc_v7_0_ip_funcs, 1421 }; 1422