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 "cikd.h" 27 #include "cik.h" 28 #include "gmc_v7_0.h" 29 #include "amdgpu_ucode.h" 30 31 #include "bif/bif_4_1_d.h" 32 #include "bif/bif_4_1_sh_mask.h" 33 34 #include "gmc/gmc_7_1_d.h" 35 #include "gmc/gmc_7_1_sh_mask.h" 36 37 #include "oss/oss_2_0_d.h" 38 #include "oss/oss_2_0_sh_mask.h" 39 40 static void gmc_v7_0_set_gart_funcs(struct amdgpu_device *adev); 41 static void gmc_v7_0_set_irq_funcs(struct amdgpu_device *adev); 42 43 MODULE_FIRMWARE("radeon/bonaire_mc.bin"); 44 MODULE_FIRMWARE("radeon/hawaii_mc.bin"); 45 MODULE_FIRMWARE("amdgpu/topaz_mc.bin"); 46 47 static const u32 golden_settings_iceland_a11[] = 48 { 49 mmVM_PRT_APERTURE0_LOW_ADDR, 0x0fffffff, 0x0fffffff, 50 mmVM_PRT_APERTURE1_LOW_ADDR, 0x0fffffff, 0x0fffffff, 51 mmVM_PRT_APERTURE2_LOW_ADDR, 0x0fffffff, 0x0fffffff, 52 mmVM_PRT_APERTURE3_LOW_ADDR, 0x0fffffff, 0x0fffffff 53 }; 54 55 static const u32 iceland_mgcg_cgcg_init[] = 56 { 57 mmMC_MEM_POWER_LS, 0xffffffff, 0x00000104 58 }; 59 60 static void gmc_v7_0_init_golden_registers(struct amdgpu_device *adev) 61 { 62 switch (adev->asic_type) { 63 case CHIP_TOPAZ: 64 amdgpu_program_register_sequence(adev, 65 iceland_mgcg_cgcg_init, 66 (const u32)ARRAY_SIZE(iceland_mgcg_cgcg_init)); 67 amdgpu_program_register_sequence(adev, 68 golden_settings_iceland_a11, 69 (const u32)ARRAY_SIZE(golden_settings_iceland_a11)); 70 break; 71 default: 72 break; 73 } 74 } 75 76 /** 77 * gmc7_mc_wait_for_idle - wait for MC idle callback. 78 * 79 * @adev: amdgpu_device pointer 80 * 81 * Wait for the MC (memory controller) to be idle. 82 * (evergreen+). 83 * Returns 0 if the MC is idle, -1 if not. 84 */ 85 int gmc_v7_0_mc_wait_for_idle(struct amdgpu_device *adev) 86 { 87 unsigned i; 88 u32 tmp; 89 90 for (i = 0; i < adev->usec_timeout; i++) { 91 /* read MC_STATUS */ 92 tmp = RREG32(mmSRBM_STATUS) & 0x1F00; 93 if (!tmp) 94 return 0; 95 udelay(1); 96 } 97 return -1; 98 } 99 100 void gmc_v7_0_mc_stop(struct amdgpu_device *adev, 101 struct amdgpu_mode_mc_save *save) 102 { 103 u32 blackout; 104 105 if (adev->mode_info.num_crtc) 106 amdgpu_display_stop_mc_access(adev, save); 107 108 amdgpu_asic_wait_for_mc_idle(adev); 109 110 blackout = RREG32(mmMC_SHARED_BLACKOUT_CNTL); 111 if (REG_GET_FIELD(blackout, MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE) != 1) { 112 /* Block CPU access */ 113 WREG32(mmBIF_FB_EN, 0); 114 /* blackout the MC */ 115 blackout = REG_SET_FIELD(blackout, 116 MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE, 0); 117 WREG32(mmMC_SHARED_BLACKOUT_CNTL, blackout | 1); 118 } 119 /* wait for the MC to settle */ 120 udelay(100); 121 } 122 123 void gmc_v7_0_mc_resume(struct amdgpu_device *adev, 124 struct amdgpu_mode_mc_save *save) 125 { 126 u32 tmp; 127 128 /* unblackout the MC */ 129 tmp = RREG32(mmMC_SHARED_BLACKOUT_CNTL); 130 tmp = REG_SET_FIELD(tmp, MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE, 0); 131 WREG32(mmMC_SHARED_BLACKOUT_CNTL, tmp); 132 /* allow CPU access */ 133 tmp = REG_SET_FIELD(0, BIF_FB_EN, FB_READ_EN, 1); 134 tmp = REG_SET_FIELD(tmp, BIF_FB_EN, FB_WRITE_EN, 1); 135 WREG32(mmBIF_FB_EN, tmp); 136 137 if (adev->mode_info.num_crtc) 138 amdgpu_display_resume_mc_access(adev, save); 139 } 140 141 /** 142 * gmc_v7_0_init_microcode - load ucode images from disk 143 * 144 * @adev: amdgpu_device pointer 145 * 146 * Use the firmware interface to load the ucode images into 147 * the driver (not loaded into hw). 148 * Returns 0 on success, error on failure. 149 */ 150 static int gmc_v7_0_init_microcode(struct amdgpu_device *adev) 151 { 152 const char *chip_name; 153 char fw_name[30]; 154 int err; 155 156 DRM_DEBUG("\n"); 157 158 switch (adev->asic_type) { 159 case CHIP_BONAIRE: 160 chip_name = "bonaire"; 161 break; 162 case CHIP_HAWAII: 163 chip_name = "hawaii"; 164 break; 165 case CHIP_TOPAZ: 166 chip_name = "topaz"; 167 break; 168 case CHIP_KAVERI: 169 case CHIP_KABINI: 170 return 0; 171 default: BUG(); 172 } 173 174 if (adev->asic_type == CHIP_TOPAZ) 175 snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_mc.bin", chip_name); 176 else 177 snprintf(fw_name, sizeof(fw_name), "radeon/%s_mc.bin", chip_name); 178 179 err = request_firmware(&adev->mc.fw, fw_name, adev->dev); 180 if (err) 181 goto out; 182 err = amdgpu_ucode_validate(adev->mc.fw); 183 184 out: 185 if (err) { 186 printk(KERN_ERR 187 "cik_mc: Failed to load firmware \"%s\"\n", 188 fw_name); 189 release_firmware(adev->mc.fw); 190 adev->mc.fw = NULL; 191 } 192 return err; 193 } 194 195 /** 196 * gmc_v7_0_mc_load_microcode - load MC ucode into the hw 197 * 198 * @adev: amdgpu_device pointer 199 * 200 * Load the GDDR MC ucode into the hw (CIK). 201 * Returns 0 on success, error on failure. 202 */ 203 static int gmc_v7_0_mc_load_microcode(struct amdgpu_device *adev) 204 { 205 const struct mc_firmware_header_v1_0 *hdr; 206 const __le32 *fw_data = NULL; 207 const __le32 *io_mc_regs = NULL; 208 u32 running, blackout = 0; 209 int i, ucode_size, regs_size; 210 211 if (!adev->mc.fw) 212 return -EINVAL; 213 214 hdr = (const struct mc_firmware_header_v1_0 *)adev->mc.fw->data; 215 amdgpu_ucode_print_mc_hdr(&hdr->header); 216 217 adev->mc.fw_version = le32_to_cpu(hdr->header.ucode_version); 218 regs_size = le32_to_cpu(hdr->io_debug_size_bytes) / (4 * 2); 219 io_mc_regs = (const __le32 *) 220 (adev->mc.fw->data + le32_to_cpu(hdr->io_debug_array_offset_bytes)); 221 ucode_size = le32_to_cpu(hdr->header.ucode_size_bytes) / 4; 222 fw_data = (const __le32 *) 223 (adev->mc.fw->data + le32_to_cpu(hdr->header.ucode_array_offset_bytes)); 224 225 running = REG_GET_FIELD(RREG32(mmMC_SEQ_SUP_CNTL), MC_SEQ_SUP_CNTL, RUN); 226 227 if (running == 0) { 228 if (running) { 229 blackout = RREG32(mmMC_SHARED_BLACKOUT_CNTL); 230 WREG32(mmMC_SHARED_BLACKOUT_CNTL, blackout | 1); 231 } 232 233 /* reset the engine and set to writable */ 234 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000008); 235 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000010); 236 237 /* load mc io regs */ 238 for (i = 0; i < regs_size; i++) { 239 WREG32(mmMC_SEQ_IO_DEBUG_INDEX, le32_to_cpup(io_mc_regs++)); 240 WREG32(mmMC_SEQ_IO_DEBUG_DATA, le32_to_cpup(io_mc_regs++)); 241 } 242 /* load the MC ucode */ 243 for (i = 0; i < ucode_size; i++) 244 WREG32(mmMC_SEQ_SUP_PGM, le32_to_cpup(fw_data++)); 245 246 /* put the engine back into the active state */ 247 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000008); 248 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000004); 249 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000001); 250 251 /* wait for training to complete */ 252 for (i = 0; i < adev->usec_timeout; i++) { 253 if (REG_GET_FIELD(RREG32(mmMC_SEQ_TRAIN_WAKEUP_CNTL), 254 MC_SEQ_TRAIN_WAKEUP_CNTL, TRAIN_DONE_D0)) 255 break; 256 udelay(1); 257 } 258 for (i = 0; i < adev->usec_timeout; i++) { 259 if (REG_GET_FIELD(RREG32(mmMC_SEQ_TRAIN_WAKEUP_CNTL), 260 MC_SEQ_TRAIN_WAKEUP_CNTL, TRAIN_DONE_D1)) 261 break; 262 udelay(1); 263 } 264 265 if (running) 266 WREG32(mmMC_SHARED_BLACKOUT_CNTL, blackout); 267 } 268 269 return 0; 270 } 271 272 static void gmc_v7_0_vram_gtt_location(struct amdgpu_device *adev, 273 struct amdgpu_mc *mc) 274 { 275 if (mc->mc_vram_size > 0xFFC0000000ULL) { 276 /* leave room for at least 1024M GTT */ 277 dev_warn(adev->dev, "limiting VRAM\n"); 278 mc->real_vram_size = 0xFFC0000000ULL; 279 mc->mc_vram_size = 0xFFC0000000ULL; 280 } 281 amdgpu_vram_location(adev, &adev->mc, 0); 282 adev->mc.gtt_base_align = 0; 283 amdgpu_gtt_location(adev, mc); 284 } 285 286 /** 287 * gmc_v7_0_mc_program - program the GPU memory controller 288 * 289 * @adev: amdgpu_device pointer 290 * 291 * Set the location of vram, gart, and AGP in the GPU's 292 * physical address space (CIK). 293 */ 294 static void gmc_v7_0_mc_program(struct amdgpu_device *adev) 295 { 296 struct amdgpu_mode_mc_save save; 297 u32 tmp; 298 int i, j; 299 300 /* Initialize HDP */ 301 for (i = 0, j = 0; i < 32; i++, j += 0x6) { 302 WREG32((0xb05 + j), 0x00000000); 303 WREG32((0xb06 + j), 0x00000000); 304 WREG32((0xb07 + j), 0x00000000); 305 WREG32((0xb08 + j), 0x00000000); 306 WREG32((0xb09 + j), 0x00000000); 307 } 308 WREG32(mmHDP_REG_COHERENCY_FLUSH_CNTL, 0); 309 310 if (adev->mode_info.num_crtc) 311 amdgpu_display_set_vga_render_state(adev, false); 312 313 gmc_v7_0_mc_stop(adev, &save); 314 if (amdgpu_asic_wait_for_mc_idle(adev)) { 315 dev_warn(adev->dev, "Wait for MC idle timedout !\n"); 316 } 317 /* Update configuration */ 318 WREG32(mmMC_VM_SYSTEM_APERTURE_LOW_ADDR, 319 adev->mc.vram_start >> 12); 320 WREG32(mmMC_VM_SYSTEM_APERTURE_HIGH_ADDR, 321 adev->mc.vram_end >> 12); 322 WREG32(mmMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR, 323 adev->vram_scratch.gpu_addr >> 12); 324 tmp = ((adev->mc.vram_end >> 24) & 0xFFFF) << 16; 325 tmp |= ((adev->mc.vram_start >> 24) & 0xFFFF); 326 WREG32(mmMC_VM_FB_LOCATION, tmp); 327 /* XXX double check these! */ 328 WREG32(mmHDP_NONSURFACE_BASE, (adev->mc.vram_start >> 8)); 329 WREG32(mmHDP_NONSURFACE_INFO, (2 << 7) | (1 << 30)); 330 WREG32(mmHDP_NONSURFACE_SIZE, 0x3FFFFFFF); 331 WREG32(mmMC_VM_AGP_BASE, 0); 332 WREG32(mmMC_VM_AGP_TOP, 0x0FFFFFFF); 333 WREG32(mmMC_VM_AGP_BOT, 0x0FFFFFFF); 334 if (amdgpu_asic_wait_for_mc_idle(adev)) { 335 dev_warn(adev->dev, "Wait for MC idle timedout !\n"); 336 } 337 gmc_v7_0_mc_resume(adev, &save); 338 339 WREG32(mmBIF_FB_EN, BIF_FB_EN__FB_READ_EN_MASK | BIF_FB_EN__FB_WRITE_EN_MASK); 340 341 tmp = RREG32(mmHDP_MISC_CNTL); 342 tmp = REG_SET_FIELD(tmp, HDP_MISC_CNTL, FLUSH_INVALIDATE_CACHE, 1); 343 WREG32(mmHDP_MISC_CNTL, tmp); 344 345 tmp = RREG32(mmHDP_HOST_PATH_CNTL); 346 WREG32(mmHDP_HOST_PATH_CNTL, tmp); 347 } 348 349 /** 350 * gmc_v7_0_mc_init - initialize the memory controller driver params 351 * 352 * @adev: amdgpu_device pointer 353 * 354 * Look up the amount of vram, vram width, and decide how to place 355 * vram and gart within the GPU's physical address space (CIK). 356 * Returns 0 for success. 357 */ 358 static int gmc_v7_0_mc_init(struct amdgpu_device *adev) 359 { 360 u32 tmp; 361 int chansize, numchan; 362 363 /* Get VRAM informations */ 364 tmp = RREG32(mmMC_ARB_RAMCFG); 365 if (REG_GET_FIELD(tmp, MC_ARB_RAMCFG, CHANSIZE)) { 366 chansize = 64; 367 } else { 368 chansize = 32; 369 } 370 tmp = RREG32(mmMC_SHARED_CHMAP); 371 switch (REG_GET_FIELD(tmp, MC_SHARED_CHMAP, NOOFCHAN)) { 372 case 0: 373 default: 374 numchan = 1; 375 break; 376 case 1: 377 numchan = 2; 378 break; 379 case 2: 380 numchan = 4; 381 break; 382 case 3: 383 numchan = 8; 384 break; 385 case 4: 386 numchan = 3; 387 break; 388 case 5: 389 numchan = 6; 390 break; 391 case 6: 392 numchan = 10; 393 break; 394 case 7: 395 numchan = 12; 396 break; 397 case 8: 398 numchan = 16; 399 break; 400 } 401 adev->mc.vram_width = numchan * chansize; 402 /* Could aper size report 0 ? */ 403 adev->mc.aper_base = pci_resource_start(adev->pdev, 0); 404 adev->mc.aper_size = pci_resource_len(adev->pdev, 0); 405 /* size in MB on si */ 406 adev->mc.mc_vram_size = RREG32(mmCONFIG_MEMSIZE) * 1024ULL * 1024ULL; 407 adev->mc.real_vram_size = RREG32(mmCONFIG_MEMSIZE) * 1024ULL * 1024ULL; 408 adev->mc.visible_vram_size = adev->mc.aper_size; 409 410 /* In case the PCI BAR is larger than the actual amount of vram */ 411 if (adev->mc.visible_vram_size > adev->mc.real_vram_size) 412 adev->mc.visible_vram_size = adev->mc.real_vram_size; 413 414 /* unless the user had overridden it, set the gart 415 * size equal to the 1024 or vram, whichever is larger. 416 */ 417 if (amdgpu_gart_size == -1) 418 adev->mc.gtt_size = max((1024ULL << 20), adev->mc.mc_vram_size); 419 else 420 adev->mc.gtt_size = (uint64_t)amdgpu_gart_size << 20; 421 422 gmc_v7_0_vram_gtt_location(adev, &adev->mc); 423 424 return 0; 425 } 426 427 /* 428 * GART 429 * VMID 0 is the physical GPU addresses as used by the kernel. 430 * VMIDs 1-15 are used for userspace clients and are handled 431 * by the amdgpu vm/hsa code. 432 */ 433 434 /** 435 * gmc_v7_0_gart_flush_gpu_tlb - gart tlb flush callback 436 * 437 * @adev: amdgpu_device pointer 438 * @vmid: vm instance to flush 439 * 440 * Flush the TLB for the requested page table (CIK). 441 */ 442 static void gmc_v7_0_gart_flush_gpu_tlb(struct amdgpu_device *adev, 443 uint32_t vmid) 444 { 445 /* flush hdp cache */ 446 WREG32(mmHDP_MEM_COHERENCY_FLUSH_CNTL, 0); 447 448 /* bits 0-15 are the VM contexts0-15 */ 449 WREG32(mmVM_INVALIDATE_REQUEST, 1 << vmid); 450 } 451 452 /** 453 * gmc_v7_0_gart_set_pte_pde - update the page tables using MMIO 454 * 455 * @adev: amdgpu_device pointer 456 * @cpu_pt_addr: cpu address of the page table 457 * @gpu_page_idx: entry in the page table to update 458 * @addr: dst addr to write into pte/pde 459 * @flags: access flags 460 * 461 * Update the page tables using the CPU. 462 */ 463 static int gmc_v7_0_gart_set_pte_pde(struct amdgpu_device *adev, 464 void *cpu_pt_addr, 465 uint32_t gpu_page_idx, 466 uint64_t addr, 467 uint32_t flags) 468 { 469 void __iomem *ptr = (void *)cpu_pt_addr; 470 uint64_t value; 471 472 value = addr & 0xFFFFFFFFFFFFF000ULL; 473 value |= flags; 474 writeq(value, ptr + (gpu_page_idx * 8)); 475 476 return 0; 477 } 478 479 /** 480 * gmc_v8_0_set_fault_enable_default - update VM fault handling 481 * 482 * @adev: amdgpu_device pointer 483 * @value: true redirects VM faults to the default page 484 */ 485 static void gmc_v7_0_set_fault_enable_default(struct amdgpu_device *adev, 486 bool value) 487 { 488 u32 tmp; 489 490 tmp = RREG32(mmVM_CONTEXT1_CNTL); 491 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, 492 RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, value); 493 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, 494 DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, value); 495 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, 496 PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, value); 497 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, 498 VALID_PROTECTION_FAULT_ENABLE_DEFAULT, value); 499 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, 500 READ_PROTECTION_FAULT_ENABLE_DEFAULT, value); 501 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, 502 WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, value); 503 WREG32(mmVM_CONTEXT1_CNTL, tmp); 504 } 505 506 /** 507 * gmc_v7_0_gart_enable - gart enable 508 * 509 * @adev: amdgpu_device pointer 510 * 511 * This sets up the TLBs, programs the page tables for VMID0, 512 * sets up the hw for VMIDs 1-15 which are allocated on 513 * demand, and sets up the global locations for the LDS, GDS, 514 * and GPUVM for FSA64 clients (CIK). 515 * Returns 0 for success, errors for failure. 516 */ 517 static int gmc_v7_0_gart_enable(struct amdgpu_device *adev) 518 { 519 int r, i; 520 u32 tmp; 521 522 if (adev->gart.robj == NULL) { 523 dev_err(adev->dev, "No VRAM object for PCIE GART.\n"); 524 return -EINVAL; 525 } 526 r = amdgpu_gart_table_vram_pin(adev); 527 if (r) 528 return r; 529 /* Setup TLB control */ 530 tmp = RREG32(mmMC_VM_MX_L1_TLB_CNTL); 531 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 1); 532 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_FRAGMENT_PROCESSING, 1); 533 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, SYSTEM_ACCESS_MODE, 3); 534 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_ADVANCED_DRIVER_MODEL, 1); 535 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, SYSTEM_APERTURE_UNMAPPED_ACCESS, 0); 536 WREG32(mmMC_VM_MX_L1_TLB_CNTL, tmp); 537 /* Setup L2 cache */ 538 tmp = RREG32(mmVM_L2_CNTL); 539 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_CACHE, 1); 540 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_FRAGMENT_PROCESSING, 1); 541 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE, 1); 542 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_PDE0_CACHE_LRU_UPDATE_BY_WRITE, 1); 543 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, EFFECTIVE_L2_QUEUE_SIZE, 7); 544 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, CONTEXT1_IDENTITY_ACCESS_MODE, 1); 545 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_DEFAULT_PAGE_OUT_TO_SYSTEM_MEMORY, 1); 546 WREG32(mmVM_L2_CNTL, tmp); 547 tmp = REG_SET_FIELD(0, VM_L2_CNTL2, INVALIDATE_ALL_L1_TLBS, 1); 548 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL2, INVALIDATE_L2_CACHE, 1); 549 WREG32(mmVM_L2_CNTL2, tmp); 550 tmp = RREG32(mmVM_L2_CNTL3); 551 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, L2_CACHE_BIGK_ASSOCIATIVITY, 1); 552 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, BANK_SELECT, 4); 553 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, L2_CACHE_BIGK_FRAGMENT_SIZE, 4); 554 WREG32(mmVM_L2_CNTL3, tmp); 555 /* setup context0 */ 556 WREG32(mmVM_CONTEXT0_PAGE_TABLE_START_ADDR, adev->mc.gtt_start >> 12); 557 WREG32(mmVM_CONTEXT0_PAGE_TABLE_END_ADDR, adev->mc.gtt_end >> 12); 558 WREG32(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR, adev->gart.table_addr >> 12); 559 WREG32(mmVM_CONTEXT0_PROTECTION_FAULT_DEFAULT_ADDR, 560 (u32)(adev->dummy_page.addr >> 12)); 561 WREG32(mmVM_CONTEXT0_CNTL2, 0); 562 tmp = RREG32(mmVM_CONTEXT0_CNTL); 563 tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, ENABLE_CONTEXT, 1); 564 tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, PAGE_TABLE_DEPTH, 0); 565 tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1); 566 WREG32(mmVM_CONTEXT0_CNTL, tmp); 567 568 WREG32(0x575, 0); 569 WREG32(0x576, 0); 570 WREG32(0x577, 0); 571 572 /* empty context1-15 */ 573 /* FIXME start with 4G, once using 2 level pt switch to full 574 * vm size space 575 */ 576 /* set vm size, must be a multiple of 4 */ 577 WREG32(mmVM_CONTEXT1_PAGE_TABLE_START_ADDR, 0); 578 WREG32(mmVM_CONTEXT1_PAGE_TABLE_END_ADDR, adev->vm_manager.max_pfn - 1); 579 for (i = 1; i < 16; i++) { 580 if (i < 8) 581 WREG32(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR + i, 582 adev->gart.table_addr >> 12); 583 else 584 WREG32(mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + i - 8, 585 adev->gart.table_addr >> 12); 586 } 587 588 /* enable context1-15 */ 589 WREG32(mmVM_CONTEXT1_PROTECTION_FAULT_DEFAULT_ADDR, 590 (u32)(adev->dummy_page.addr >> 12)); 591 WREG32(mmVM_CONTEXT1_CNTL2, 4); 592 tmp = RREG32(mmVM_CONTEXT1_CNTL); 593 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, ENABLE_CONTEXT, 1); 594 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, PAGE_TABLE_DEPTH, 1); 595 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, PAGE_TABLE_BLOCK_SIZE, 596 amdgpu_vm_block_size - 9); 597 WREG32(mmVM_CONTEXT1_CNTL, tmp); 598 if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_ALWAYS) 599 gmc_v7_0_set_fault_enable_default(adev, false); 600 else 601 gmc_v7_0_set_fault_enable_default(adev, true); 602 603 if (adev->asic_type == CHIP_KAVERI) { 604 tmp = RREG32(mmCHUB_CONTROL); 605 tmp &= ~BYPASS_VM; 606 WREG32(mmCHUB_CONTROL, tmp); 607 } 608 609 gmc_v7_0_gart_flush_gpu_tlb(adev, 0); 610 DRM_INFO("PCIE GART of %uM enabled (table at 0x%016llX).\n", 611 (unsigned)(adev->mc.gtt_size >> 20), 612 (unsigned long long)adev->gart.table_addr); 613 adev->gart.ready = true; 614 return 0; 615 } 616 617 static int gmc_v7_0_gart_init(struct amdgpu_device *adev) 618 { 619 int r; 620 621 if (adev->gart.robj) { 622 WARN(1, "R600 PCIE GART already initialized\n"); 623 return 0; 624 } 625 /* Initialize common gart structure */ 626 r = amdgpu_gart_init(adev); 627 if (r) 628 return r; 629 adev->gart.table_size = adev->gart.num_gpu_pages * 8; 630 return amdgpu_gart_table_vram_alloc(adev); 631 } 632 633 /** 634 * gmc_v7_0_gart_disable - gart disable 635 * 636 * @adev: amdgpu_device pointer 637 * 638 * This disables all VM page table (CIK). 639 */ 640 static void gmc_v7_0_gart_disable(struct amdgpu_device *adev) 641 { 642 u32 tmp; 643 644 /* Disable all tables */ 645 WREG32(mmVM_CONTEXT0_CNTL, 0); 646 WREG32(mmVM_CONTEXT1_CNTL, 0); 647 /* Setup TLB control */ 648 tmp = RREG32(mmMC_VM_MX_L1_TLB_CNTL); 649 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 0); 650 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_FRAGMENT_PROCESSING, 0); 651 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_ADVANCED_DRIVER_MODEL, 0); 652 WREG32(mmMC_VM_MX_L1_TLB_CNTL, tmp); 653 /* Setup L2 cache */ 654 tmp = RREG32(mmVM_L2_CNTL); 655 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_CACHE, 0); 656 WREG32(mmVM_L2_CNTL, tmp); 657 WREG32(mmVM_L2_CNTL2, 0); 658 amdgpu_gart_table_vram_unpin(adev); 659 } 660 661 /** 662 * gmc_v7_0_gart_fini - vm fini callback 663 * 664 * @adev: amdgpu_device pointer 665 * 666 * Tears down the driver GART/VM setup (CIK). 667 */ 668 static void gmc_v7_0_gart_fini(struct amdgpu_device *adev) 669 { 670 amdgpu_gart_table_vram_free(adev); 671 amdgpu_gart_fini(adev); 672 } 673 674 /* 675 * vm 676 * VMID 0 is the physical GPU addresses as used by the kernel. 677 * VMIDs 1-15 are used for userspace clients and are handled 678 * by the amdgpu vm/hsa code. 679 */ 680 /** 681 * gmc_v7_0_vm_init - cik vm init callback 682 * 683 * @adev: amdgpu_device pointer 684 * 685 * Inits cik specific vm parameters (number of VMs, base of vram for 686 * VMIDs 1-15) (CIK). 687 * Returns 0 for success. 688 */ 689 static int gmc_v7_0_vm_init(struct amdgpu_device *adev) 690 { 691 /* 692 * number of VMs 693 * VMID 0 is reserved for System 694 * amdgpu graphics/compute will use VMIDs 1-7 695 * amdkfd will use VMIDs 8-15 696 */ 697 adev->vm_manager.nvm = AMDGPU_NUM_OF_VMIDS; 698 699 /* base offset of vram pages */ 700 if (adev->flags & AMD_IS_APU) { 701 u64 tmp = RREG32(mmMC_VM_FB_OFFSET); 702 tmp <<= 22; 703 adev->vm_manager.vram_base_offset = tmp; 704 } else 705 adev->vm_manager.vram_base_offset = 0; 706 707 return 0; 708 } 709 710 /** 711 * gmc_v7_0_vm_fini - cik vm fini callback 712 * 713 * @adev: amdgpu_device pointer 714 * 715 * Tear down any asic specific VM setup (CIK). 716 */ 717 static void gmc_v7_0_vm_fini(struct amdgpu_device *adev) 718 { 719 } 720 721 /** 722 * gmc_v7_0_vm_decode_fault - print human readable fault info 723 * 724 * @adev: amdgpu_device pointer 725 * @status: VM_CONTEXT1_PROTECTION_FAULT_STATUS register value 726 * @addr: VM_CONTEXT1_PROTECTION_FAULT_ADDR register value 727 * 728 * Print human readable fault information (CIK). 729 */ 730 static void gmc_v7_0_vm_decode_fault(struct amdgpu_device *adev, 731 u32 status, u32 addr, u32 mc_client) 732 { 733 u32 mc_id; 734 u32 vmid = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS, VMID); 735 u32 protections = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS, 736 PROTECTIONS); 737 char block[5] = { mc_client >> 24, (mc_client >> 16) & 0xff, 738 (mc_client >> 8) & 0xff, mc_client & 0xff, 0 }; 739 740 mc_id = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS, 741 MEMORY_CLIENT_ID); 742 743 printk("VM fault (0x%02x, vmid %d) at page %u, %s from '%s' (0x%08x) (%d)\n", 744 protections, vmid, addr, 745 REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS, 746 MEMORY_CLIENT_RW) ? 747 "write" : "read", block, mc_client, mc_id); 748 } 749 750 751 static const u32 mc_cg_registers[] = { 752 mmMC_HUB_MISC_HUB_CG, 753 mmMC_HUB_MISC_SIP_CG, 754 mmMC_HUB_MISC_VM_CG, 755 mmMC_XPB_CLK_GAT, 756 mmATC_MISC_CG, 757 mmMC_CITF_MISC_WR_CG, 758 mmMC_CITF_MISC_RD_CG, 759 mmMC_CITF_MISC_VM_CG, 760 mmVM_L2_CG, 761 }; 762 763 static const u32 mc_cg_ls_en[] = { 764 MC_HUB_MISC_HUB_CG__MEM_LS_ENABLE_MASK, 765 MC_HUB_MISC_SIP_CG__MEM_LS_ENABLE_MASK, 766 MC_HUB_MISC_VM_CG__MEM_LS_ENABLE_MASK, 767 MC_XPB_CLK_GAT__MEM_LS_ENABLE_MASK, 768 ATC_MISC_CG__MEM_LS_ENABLE_MASK, 769 MC_CITF_MISC_WR_CG__MEM_LS_ENABLE_MASK, 770 MC_CITF_MISC_RD_CG__MEM_LS_ENABLE_MASK, 771 MC_CITF_MISC_VM_CG__MEM_LS_ENABLE_MASK, 772 VM_L2_CG__MEM_LS_ENABLE_MASK, 773 }; 774 775 static const u32 mc_cg_en[] = { 776 MC_HUB_MISC_HUB_CG__ENABLE_MASK, 777 MC_HUB_MISC_SIP_CG__ENABLE_MASK, 778 MC_HUB_MISC_VM_CG__ENABLE_MASK, 779 MC_XPB_CLK_GAT__ENABLE_MASK, 780 ATC_MISC_CG__ENABLE_MASK, 781 MC_CITF_MISC_WR_CG__ENABLE_MASK, 782 MC_CITF_MISC_RD_CG__ENABLE_MASK, 783 MC_CITF_MISC_VM_CG__ENABLE_MASK, 784 VM_L2_CG__ENABLE_MASK, 785 }; 786 787 static void gmc_v7_0_enable_mc_ls(struct amdgpu_device *adev, 788 bool enable) 789 { 790 int i; 791 u32 orig, data; 792 793 for (i = 0; i < ARRAY_SIZE(mc_cg_registers); i++) { 794 orig = data = RREG32(mc_cg_registers[i]); 795 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_MC_LS)) 796 data |= mc_cg_ls_en[i]; 797 else 798 data &= ~mc_cg_ls_en[i]; 799 if (data != orig) 800 WREG32(mc_cg_registers[i], data); 801 } 802 } 803 804 static void gmc_v7_0_enable_mc_mgcg(struct amdgpu_device *adev, 805 bool enable) 806 { 807 int i; 808 u32 orig, data; 809 810 for (i = 0; i < ARRAY_SIZE(mc_cg_registers); i++) { 811 orig = data = RREG32(mc_cg_registers[i]); 812 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_MC_MGCG)) 813 data |= mc_cg_en[i]; 814 else 815 data &= ~mc_cg_en[i]; 816 if (data != orig) 817 WREG32(mc_cg_registers[i], data); 818 } 819 } 820 821 static void gmc_v7_0_enable_bif_mgls(struct amdgpu_device *adev, 822 bool enable) 823 { 824 u32 orig, data; 825 826 orig = data = RREG32_PCIE(ixPCIE_CNTL2); 827 828 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_BIF_LS)) { 829 data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_LS_EN, 1); 830 data = REG_SET_FIELD(data, PCIE_CNTL2, MST_MEM_LS_EN, 1); 831 data = REG_SET_FIELD(data, PCIE_CNTL2, REPLAY_MEM_LS_EN, 1); 832 data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_AGGRESSIVE_LS_EN, 1); 833 } else { 834 data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_LS_EN, 0); 835 data = REG_SET_FIELD(data, PCIE_CNTL2, MST_MEM_LS_EN, 0); 836 data = REG_SET_FIELD(data, PCIE_CNTL2, REPLAY_MEM_LS_EN, 0); 837 data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_AGGRESSIVE_LS_EN, 0); 838 } 839 840 if (orig != data) 841 WREG32_PCIE(ixPCIE_CNTL2, data); 842 } 843 844 static void gmc_v7_0_enable_hdp_mgcg(struct amdgpu_device *adev, 845 bool enable) 846 { 847 u32 orig, data; 848 849 orig = data = RREG32(mmHDP_HOST_PATH_CNTL); 850 851 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_HDP_MGCG)) 852 data = REG_SET_FIELD(data, HDP_HOST_PATH_CNTL, CLOCK_GATING_DIS, 0); 853 else 854 data = REG_SET_FIELD(data, HDP_HOST_PATH_CNTL, CLOCK_GATING_DIS, 1); 855 856 if (orig != data) 857 WREG32(mmHDP_HOST_PATH_CNTL, data); 858 } 859 860 static void gmc_v7_0_enable_hdp_ls(struct amdgpu_device *adev, 861 bool enable) 862 { 863 u32 orig, data; 864 865 orig = data = RREG32(mmHDP_MEM_POWER_LS); 866 867 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_HDP_LS)) 868 data = REG_SET_FIELD(data, HDP_MEM_POWER_LS, LS_ENABLE, 1); 869 else 870 data = REG_SET_FIELD(data, HDP_MEM_POWER_LS, LS_ENABLE, 0); 871 872 if (orig != data) 873 WREG32(mmHDP_MEM_POWER_LS, data); 874 } 875 876 static int gmc_v7_0_convert_vram_type(int mc_seq_vram_type) 877 { 878 switch (mc_seq_vram_type) { 879 case MC_SEQ_MISC0__MT__GDDR1: 880 return AMDGPU_VRAM_TYPE_GDDR1; 881 case MC_SEQ_MISC0__MT__DDR2: 882 return AMDGPU_VRAM_TYPE_DDR2; 883 case MC_SEQ_MISC0__MT__GDDR3: 884 return AMDGPU_VRAM_TYPE_GDDR3; 885 case MC_SEQ_MISC0__MT__GDDR4: 886 return AMDGPU_VRAM_TYPE_GDDR4; 887 case MC_SEQ_MISC0__MT__GDDR5: 888 return AMDGPU_VRAM_TYPE_GDDR5; 889 case MC_SEQ_MISC0__MT__HBM: 890 return AMDGPU_VRAM_TYPE_HBM; 891 case MC_SEQ_MISC0__MT__DDR3: 892 return AMDGPU_VRAM_TYPE_DDR3; 893 default: 894 return AMDGPU_VRAM_TYPE_UNKNOWN; 895 } 896 } 897 898 static int gmc_v7_0_early_init(void *handle) 899 { 900 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 901 902 gmc_v7_0_set_gart_funcs(adev); 903 gmc_v7_0_set_irq_funcs(adev); 904 905 if (adev->flags & AMD_IS_APU) { 906 adev->mc.vram_type = AMDGPU_VRAM_TYPE_UNKNOWN; 907 } else { 908 u32 tmp = RREG32(mmMC_SEQ_MISC0); 909 tmp &= MC_SEQ_MISC0__MT__MASK; 910 adev->mc.vram_type = gmc_v7_0_convert_vram_type(tmp); 911 } 912 913 return 0; 914 } 915 916 static int gmc_v7_0_late_init(void *handle) 917 { 918 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 919 920 return amdgpu_irq_get(adev, &adev->mc.vm_fault, 0); 921 } 922 923 static int gmc_v7_0_sw_init(void *handle) 924 { 925 int r; 926 int dma_bits; 927 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 928 929 r = amdgpu_gem_init(adev); 930 if (r) 931 return r; 932 933 r = amdgpu_irq_add_id(adev, 146, &adev->mc.vm_fault); 934 if (r) 935 return r; 936 937 r = amdgpu_irq_add_id(adev, 147, &adev->mc.vm_fault); 938 if (r) 939 return r; 940 941 /* Adjust VM size here. 942 * Currently set to 4GB ((1 << 20) 4k pages). 943 * Max GPUVM size for cayman and SI is 40 bits. 944 */ 945 adev->vm_manager.max_pfn = amdgpu_vm_size << 18; 946 947 /* Set the internal MC address mask 948 * This is the max address of the GPU's 949 * internal address space. 950 */ 951 adev->mc.mc_mask = 0xffffffffffULL; /* 40 bit MC */ 952 953 /* set DMA mask + need_dma32 flags. 954 * PCIE - can handle 40-bits. 955 * IGP - can handle 40-bits 956 * PCI - dma32 for legacy pci gart, 40 bits on newer asics 957 */ 958 adev->need_dma32 = false; 959 dma_bits = adev->need_dma32 ? 32 : 40; 960 r = pci_set_dma_mask(adev->pdev, DMA_BIT_MASK(dma_bits)); 961 if (r) { 962 adev->need_dma32 = true; 963 dma_bits = 32; 964 printk(KERN_WARNING "amdgpu: No suitable DMA available.\n"); 965 } 966 r = pci_set_consistent_dma_mask(adev->pdev, DMA_BIT_MASK(dma_bits)); 967 if (r) { 968 pci_set_consistent_dma_mask(adev->pdev, DMA_BIT_MASK(32)); 969 printk(KERN_WARNING "amdgpu: No coherent DMA available.\n"); 970 } 971 972 r = gmc_v7_0_init_microcode(adev); 973 if (r) { 974 DRM_ERROR("Failed to load mc firmware!\n"); 975 return r; 976 } 977 978 r = gmc_v7_0_mc_init(adev); 979 if (r) 980 return r; 981 982 /* Memory manager */ 983 r = amdgpu_bo_init(adev); 984 if (r) 985 return r; 986 987 r = gmc_v7_0_gart_init(adev); 988 if (r) 989 return r; 990 991 if (!adev->vm_manager.enabled) { 992 r = gmc_v7_0_vm_init(adev); 993 if (r) { 994 dev_err(adev->dev, "vm manager initialization failed (%d).\n", r); 995 return r; 996 } 997 adev->vm_manager.enabled = true; 998 } 999 1000 return r; 1001 } 1002 1003 static int gmc_v7_0_sw_fini(void *handle) 1004 { 1005 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1006 1007 if (adev->vm_manager.enabled) { 1008 amdgpu_vm_manager_fini(adev); 1009 gmc_v7_0_vm_fini(adev); 1010 adev->vm_manager.enabled = false; 1011 } 1012 gmc_v7_0_gart_fini(adev); 1013 amdgpu_gem_fini(adev); 1014 amdgpu_bo_fini(adev); 1015 1016 return 0; 1017 } 1018 1019 static int gmc_v7_0_hw_init(void *handle) 1020 { 1021 int r; 1022 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1023 1024 gmc_v7_0_init_golden_registers(adev); 1025 1026 gmc_v7_0_mc_program(adev); 1027 1028 if (!(adev->flags & AMD_IS_APU)) { 1029 r = gmc_v7_0_mc_load_microcode(adev); 1030 if (r) { 1031 DRM_ERROR("Failed to load MC firmware!\n"); 1032 return r; 1033 } 1034 } 1035 1036 r = gmc_v7_0_gart_enable(adev); 1037 if (r) 1038 return r; 1039 1040 return r; 1041 } 1042 1043 static int gmc_v7_0_hw_fini(void *handle) 1044 { 1045 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1046 1047 amdgpu_irq_put(adev, &adev->mc.vm_fault, 0); 1048 gmc_v7_0_gart_disable(adev); 1049 1050 return 0; 1051 } 1052 1053 static int gmc_v7_0_suspend(void *handle) 1054 { 1055 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1056 1057 if (adev->vm_manager.enabled) { 1058 gmc_v7_0_vm_fini(adev); 1059 adev->vm_manager.enabled = false; 1060 } 1061 gmc_v7_0_hw_fini(adev); 1062 1063 return 0; 1064 } 1065 1066 static int gmc_v7_0_resume(void *handle) 1067 { 1068 int r; 1069 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1070 1071 r = gmc_v7_0_hw_init(adev); 1072 if (r) 1073 return r; 1074 1075 if (!adev->vm_manager.enabled) { 1076 r = gmc_v7_0_vm_init(adev); 1077 if (r) { 1078 dev_err(adev->dev, "vm manager initialization failed (%d).\n", r); 1079 return r; 1080 } 1081 adev->vm_manager.enabled = true; 1082 } 1083 1084 return r; 1085 } 1086 1087 static bool gmc_v7_0_is_idle(void *handle) 1088 { 1089 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1090 u32 tmp = RREG32(mmSRBM_STATUS); 1091 1092 if (tmp & (SRBM_STATUS__MCB_BUSY_MASK | SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK | 1093 SRBM_STATUS__MCC_BUSY_MASK | SRBM_STATUS__MCD_BUSY_MASK | SRBM_STATUS__VMC_BUSY_MASK)) 1094 return false; 1095 1096 return true; 1097 } 1098 1099 static int gmc_v7_0_wait_for_idle(void *handle) 1100 { 1101 unsigned i; 1102 u32 tmp; 1103 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1104 1105 for (i = 0; i < adev->usec_timeout; i++) { 1106 /* read MC_STATUS */ 1107 tmp = RREG32(mmSRBM_STATUS) & (SRBM_STATUS__MCB_BUSY_MASK | 1108 SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK | 1109 SRBM_STATUS__MCC_BUSY_MASK | 1110 SRBM_STATUS__MCD_BUSY_MASK | 1111 SRBM_STATUS__VMC_BUSY_MASK); 1112 if (!tmp) 1113 return 0; 1114 udelay(1); 1115 } 1116 return -ETIMEDOUT; 1117 1118 } 1119 1120 static void gmc_v7_0_print_status(void *handle) 1121 { 1122 int i, j; 1123 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1124 1125 dev_info(adev->dev, "GMC 8.x registers\n"); 1126 dev_info(adev->dev, " SRBM_STATUS=0x%08X\n", 1127 RREG32(mmSRBM_STATUS)); 1128 dev_info(adev->dev, " SRBM_STATUS2=0x%08X\n", 1129 RREG32(mmSRBM_STATUS2)); 1130 1131 dev_info(adev->dev, " VM_CONTEXT1_PROTECTION_FAULT_ADDR 0x%08X\n", 1132 RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_ADDR)); 1133 dev_info(adev->dev, " VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x%08X\n", 1134 RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_STATUS)); 1135 dev_info(adev->dev, " MC_VM_MX_L1_TLB_CNTL=0x%08X\n", 1136 RREG32(mmMC_VM_MX_L1_TLB_CNTL)); 1137 dev_info(adev->dev, " VM_L2_CNTL=0x%08X\n", 1138 RREG32(mmVM_L2_CNTL)); 1139 dev_info(adev->dev, " VM_L2_CNTL2=0x%08X\n", 1140 RREG32(mmVM_L2_CNTL2)); 1141 dev_info(adev->dev, " VM_L2_CNTL3=0x%08X\n", 1142 RREG32(mmVM_L2_CNTL3)); 1143 dev_info(adev->dev, " VM_CONTEXT0_PAGE_TABLE_START_ADDR=0x%08X\n", 1144 RREG32(mmVM_CONTEXT0_PAGE_TABLE_START_ADDR)); 1145 dev_info(adev->dev, " VM_CONTEXT0_PAGE_TABLE_END_ADDR=0x%08X\n", 1146 RREG32(mmVM_CONTEXT0_PAGE_TABLE_END_ADDR)); 1147 dev_info(adev->dev, " VM_CONTEXT0_PROTECTION_FAULT_DEFAULT_ADDR=0x%08X\n", 1148 RREG32(mmVM_CONTEXT0_PROTECTION_FAULT_DEFAULT_ADDR)); 1149 dev_info(adev->dev, " VM_CONTEXT0_CNTL2=0x%08X\n", 1150 RREG32(mmVM_CONTEXT0_CNTL2)); 1151 dev_info(adev->dev, " VM_CONTEXT0_CNTL=0x%08X\n", 1152 RREG32(mmVM_CONTEXT0_CNTL)); 1153 dev_info(adev->dev, " 0x15D4=0x%08X\n", 1154 RREG32(0x575)); 1155 dev_info(adev->dev, " 0x15D8=0x%08X\n", 1156 RREG32(0x576)); 1157 dev_info(adev->dev, " 0x15DC=0x%08X\n", 1158 RREG32(0x577)); 1159 dev_info(adev->dev, " VM_CONTEXT1_PAGE_TABLE_START_ADDR=0x%08X\n", 1160 RREG32(mmVM_CONTEXT1_PAGE_TABLE_START_ADDR)); 1161 dev_info(adev->dev, " VM_CONTEXT1_PAGE_TABLE_END_ADDR=0x%08X\n", 1162 RREG32(mmVM_CONTEXT1_PAGE_TABLE_END_ADDR)); 1163 dev_info(adev->dev, " VM_CONTEXT1_PROTECTION_FAULT_DEFAULT_ADDR=0x%08X\n", 1164 RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_DEFAULT_ADDR)); 1165 dev_info(adev->dev, " VM_CONTEXT1_CNTL2=0x%08X\n", 1166 RREG32(mmVM_CONTEXT1_CNTL2)); 1167 dev_info(adev->dev, " VM_CONTEXT1_CNTL=0x%08X\n", 1168 RREG32(mmVM_CONTEXT1_CNTL)); 1169 for (i = 0; i < 16; i++) { 1170 if (i < 8) 1171 dev_info(adev->dev, " VM_CONTEXT%d_PAGE_TABLE_BASE_ADDR=0x%08X\n", 1172 i, RREG32(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR + i)); 1173 else 1174 dev_info(adev->dev, " VM_CONTEXT%d_PAGE_TABLE_BASE_ADDR=0x%08X\n", 1175 i, RREG32(mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + i - 8)); 1176 } 1177 dev_info(adev->dev, " MC_VM_SYSTEM_APERTURE_LOW_ADDR=0x%08X\n", 1178 RREG32(mmMC_VM_SYSTEM_APERTURE_LOW_ADDR)); 1179 dev_info(adev->dev, " MC_VM_SYSTEM_APERTURE_HIGH_ADDR=0x%08X\n", 1180 RREG32(mmMC_VM_SYSTEM_APERTURE_HIGH_ADDR)); 1181 dev_info(adev->dev, " MC_VM_SYSTEM_APERTURE_DEFAULT_ADDR=0x%08X\n", 1182 RREG32(mmMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR)); 1183 dev_info(adev->dev, " MC_VM_FB_LOCATION=0x%08X\n", 1184 RREG32(mmMC_VM_FB_LOCATION)); 1185 dev_info(adev->dev, " MC_VM_AGP_BASE=0x%08X\n", 1186 RREG32(mmMC_VM_AGP_BASE)); 1187 dev_info(adev->dev, " MC_VM_AGP_TOP=0x%08X\n", 1188 RREG32(mmMC_VM_AGP_TOP)); 1189 dev_info(adev->dev, " MC_VM_AGP_BOT=0x%08X\n", 1190 RREG32(mmMC_VM_AGP_BOT)); 1191 1192 if (adev->asic_type == CHIP_KAVERI) { 1193 dev_info(adev->dev, " CHUB_CONTROL=0x%08X\n", 1194 RREG32(mmCHUB_CONTROL)); 1195 } 1196 1197 dev_info(adev->dev, " HDP_REG_COHERENCY_FLUSH_CNTL=0x%08X\n", 1198 RREG32(mmHDP_REG_COHERENCY_FLUSH_CNTL)); 1199 dev_info(adev->dev, " HDP_NONSURFACE_BASE=0x%08X\n", 1200 RREG32(mmHDP_NONSURFACE_BASE)); 1201 dev_info(adev->dev, " HDP_NONSURFACE_INFO=0x%08X\n", 1202 RREG32(mmHDP_NONSURFACE_INFO)); 1203 dev_info(adev->dev, " HDP_NONSURFACE_SIZE=0x%08X\n", 1204 RREG32(mmHDP_NONSURFACE_SIZE)); 1205 dev_info(adev->dev, " HDP_MISC_CNTL=0x%08X\n", 1206 RREG32(mmHDP_MISC_CNTL)); 1207 dev_info(adev->dev, " HDP_HOST_PATH_CNTL=0x%08X\n", 1208 RREG32(mmHDP_HOST_PATH_CNTL)); 1209 1210 for (i = 0, j = 0; i < 32; i++, j += 0x6) { 1211 dev_info(adev->dev, " %d:\n", i); 1212 dev_info(adev->dev, " 0x%04X=0x%08X\n", 1213 0xb05 + j, RREG32(0xb05 + j)); 1214 dev_info(adev->dev, " 0x%04X=0x%08X\n", 1215 0xb06 + j, RREG32(0xb06 + j)); 1216 dev_info(adev->dev, " 0x%04X=0x%08X\n", 1217 0xb07 + j, RREG32(0xb07 + j)); 1218 dev_info(adev->dev, " 0x%04X=0x%08X\n", 1219 0xb08 + j, RREG32(0xb08 + j)); 1220 dev_info(adev->dev, " 0x%04X=0x%08X\n", 1221 0xb09 + j, RREG32(0xb09 + j)); 1222 } 1223 1224 dev_info(adev->dev, " BIF_FB_EN=0x%08X\n", 1225 RREG32(mmBIF_FB_EN)); 1226 } 1227 1228 static int gmc_v7_0_soft_reset(void *handle) 1229 { 1230 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1231 struct amdgpu_mode_mc_save save; 1232 u32 srbm_soft_reset = 0; 1233 u32 tmp = RREG32(mmSRBM_STATUS); 1234 1235 if (tmp & SRBM_STATUS__VMC_BUSY_MASK) 1236 srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset, 1237 SRBM_SOFT_RESET, SOFT_RESET_VMC, 1); 1238 1239 if (tmp & (SRBM_STATUS__MCB_BUSY_MASK | SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK | 1240 SRBM_STATUS__MCC_BUSY_MASK | SRBM_STATUS__MCD_BUSY_MASK)) { 1241 if (!(adev->flags & AMD_IS_APU)) 1242 srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset, 1243 SRBM_SOFT_RESET, SOFT_RESET_MC, 1); 1244 } 1245 1246 if (srbm_soft_reset) { 1247 gmc_v7_0_print_status((void *)adev); 1248 1249 gmc_v7_0_mc_stop(adev, &save); 1250 if (gmc_v7_0_wait_for_idle(adev)) { 1251 dev_warn(adev->dev, "Wait for GMC idle timed out !\n"); 1252 } 1253 1254 1255 tmp = RREG32(mmSRBM_SOFT_RESET); 1256 tmp |= srbm_soft_reset; 1257 dev_info(adev->dev, "SRBM_SOFT_RESET=0x%08X\n", tmp); 1258 WREG32(mmSRBM_SOFT_RESET, tmp); 1259 tmp = RREG32(mmSRBM_SOFT_RESET); 1260 1261 udelay(50); 1262 1263 tmp &= ~srbm_soft_reset; 1264 WREG32(mmSRBM_SOFT_RESET, tmp); 1265 tmp = RREG32(mmSRBM_SOFT_RESET); 1266 1267 /* Wait a little for things to settle down */ 1268 udelay(50); 1269 1270 gmc_v7_0_mc_resume(adev, &save); 1271 udelay(50); 1272 1273 gmc_v7_0_print_status((void *)adev); 1274 } 1275 1276 return 0; 1277 } 1278 1279 static int gmc_v7_0_vm_fault_interrupt_state(struct amdgpu_device *adev, 1280 struct amdgpu_irq_src *src, 1281 unsigned type, 1282 enum amdgpu_interrupt_state state) 1283 { 1284 u32 tmp; 1285 u32 bits = (VM_CONTEXT1_CNTL__RANGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | 1286 VM_CONTEXT1_CNTL__DUMMY_PAGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | 1287 VM_CONTEXT1_CNTL__PDE0_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | 1288 VM_CONTEXT1_CNTL__VALID_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | 1289 VM_CONTEXT1_CNTL__READ_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | 1290 VM_CONTEXT1_CNTL__WRITE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK); 1291 1292 switch (state) { 1293 case AMDGPU_IRQ_STATE_DISABLE: 1294 /* system context */ 1295 tmp = RREG32(mmVM_CONTEXT0_CNTL); 1296 tmp &= ~bits; 1297 WREG32(mmVM_CONTEXT0_CNTL, tmp); 1298 /* VMs */ 1299 tmp = RREG32(mmVM_CONTEXT1_CNTL); 1300 tmp &= ~bits; 1301 WREG32(mmVM_CONTEXT1_CNTL, tmp); 1302 break; 1303 case AMDGPU_IRQ_STATE_ENABLE: 1304 /* system context */ 1305 tmp = RREG32(mmVM_CONTEXT0_CNTL); 1306 tmp |= bits; 1307 WREG32(mmVM_CONTEXT0_CNTL, tmp); 1308 /* VMs */ 1309 tmp = RREG32(mmVM_CONTEXT1_CNTL); 1310 tmp |= bits; 1311 WREG32(mmVM_CONTEXT1_CNTL, tmp); 1312 break; 1313 default: 1314 break; 1315 } 1316 1317 return 0; 1318 } 1319 1320 static int gmc_v7_0_process_interrupt(struct amdgpu_device *adev, 1321 struct amdgpu_irq_src *source, 1322 struct amdgpu_iv_entry *entry) 1323 { 1324 u32 addr, status, mc_client; 1325 1326 addr = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_ADDR); 1327 status = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_STATUS); 1328 mc_client = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_MCCLIENT); 1329 /* reset addr and status */ 1330 WREG32_P(mmVM_CONTEXT1_CNTL2, 1, ~1); 1331 1332 if (!addr && !status) 1333 return 0; 1334 1335 if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_FIRST) 1336 gmc_v7_0_set_fault_enable_default(adev, false); 1337 1338 dev_err(adev->dev, "GPU fault detected: %d 0x%08x\n", 1339 entry->src_id, entry->src_data); 1340 dev_err(adev->dev, " VM_CONTEXT1_PROTECTION_FAULT_ADDR 0x%08X\n", 1341 addr); 1342 dev_err(adev->dev, " VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x%08X\n", 1343 status); 1344 gmc_v7_0_vm_decode_fault(adev, status, addr, mc_client); 1345 1346 return 0; 1347 } 1348 1349 static int gmc_v7_0_set_clockgating_state(void *handle, 1350 enum amd_clockgating_state state) 1351 { 1352 bool gate = false; 1353 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1354 1355 if (state == AMD_CG_STATE_GATE) 1356 gate = true; 1357 1358 if (!(adev->flags & AMD_IS_APU)) { 1359 gmc_v7_0_enable_mc_mgcg(adev, gate); 1360 gmc_v7_0_enable_mc_ls(adev, gate); 1361 } 1362 gmc_v7_0_enable_bif_mgls(adev, gate); 1363 gmc_v7_0_enable_hdp_mgcg(adev, gate); 1364 gmc_v7_0_enable_hdp_ls(adev, gate); 1365 1366 return 0; 1367 } 1368 1369 static int gmc_v7_0_set_powergating_state(void *handle, 1370 enum amd_powergating_state state) 1371 { 1372 return 0; 1373 } 1374 1375 const struct amd_ip_funcs gmc_v7_0_ip_funcs = { 1376 .early_init = gmc_v7_0_early_init, 1377 .late_init = gmc_v7_0_late_init, 1378 .sw_init = gmc_v7_0_sw_init, 1379 .sw_fini = gmc_v7_0_sw_fini, 1380 .hw_init = gmc_v7_0_hw_init, 1381 .hw_fini = gmc_v7_0_hw_fini, 1382 .suspend = gmc_v7_0_suspend, 1383 .resume = gmc_v7_0_resume, 1384 .is_idle = gmc_v7_0_is_idle, 1385 .wait_for_idle = gmc_v7_0_wait_for_idle, 1386 .soft_reset = gmc_v7_0_soft_reset, 1387 .print_status = gmc_v7_0_print_status, 1388 .set_clockgating_state = gmc_v7_0_set_clockgating_state, 1389 .set_powergating_state = gmc_v7_0_set_powergating_state, 1390 }; 1391 1392 static const struct amdgpu_gart_funcs gmc_v7_0_gart_funcs = { 1393 .flush_gpu_tlb = gmc_v7_0_gart_flush_gpu_tlb, 1394 .set_pte_pde = gmc_v7_0_gart_set_pte_pde, 1395 }; 1396 1397 static const struct amdgpu_irq_src_funcs gmc_v7_0_irq_funcs = { 1398 .set = gmc_v7_0_vm_fault_interrupt_state, 1399 .process = gmc_v7_0_process_interrupt, 1400 }; 1401 1402 static void gmc_v7_0_set_gart_funcs(struct amdgpu_device *adev) 1403 { 1404 if (adev->gart.gart_funcs == NULL) 1405 adev->gart.gart_funcs = &gmc_v7_0_gart_funcs; 1406 } 1407 1408 static void gmc_v7_0_set_irq_funcs(struct amdgpu_device *adev) 1409 { 1410 adev->mc.vm_fault.num_types = 1; 1411 adev->mc.vm_fault.funcs = &gmc_v7_0_irq_funcs; 1412 } 1413