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, 0); 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.num_ids = AMDGPU_NUM_OF_VMIDS; 698 amdgpu_vm_manager_init(adev); 699 700 /* base offset of vram pages */ 701 if (adev->flags & AMD_IS_APU) { 702 u64 tmp = RREG32(mmMC_VM_FB_OFFSET); 703 tmp <<= 22; 704 adev->vm_manager.vram_base_offset = tmp; 705 } else 706 adev->vm_manager.vram_base_offset = 0; 707 708 return 0; 709 } 710 711 /** 712 * gmc_v7_0_vm_fini - cik vm fini callback 713 * 714 * @adev: amdgpu_device pointer 715 * 716 * Tear down any asic specific VM setup (CIK). 717 */ 718 static void gmc_v7_0_vm_fini(struct amdgpu_device *adev) 719 { 720 } 721 722 /** 723 * gmc_v7_0_vm_decode_fault - print human readable fault info 724 * 725 * @adev: amdgpu_device pointer 726 * @status: VM_CONTEXT1_PROTECTION_FAULT_STATUS register value 727 * @addr: VM_CONTEXT1_PROTECTION_FAULT_ADDR register value 728 * 729 * Print human readable fault information (CIK). 730 */ 731 static void gmc_v7_0_vm_decode_fault(struct amdgpu_device *adev, 732 u32 status, u32 addr, u32 mc_client) 733 { 734 u32 mc_id; 735 u32 vmid = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS, VMID); 736 u32 protections = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS, 737 PROTECTIONS); 738 char block[5] = { mc_client >> 24, (mc_client >> 16) & 0xff, 739 (mc_client >> 8) & 0xff, mc_client & 0xff, 0 }; 740 741 mc_id = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS, 742 MEMORY_CLIENT_ID); 743 744 printk("VM fault (0x%02x, vmid %d) at page %u, %s from '%s' (0x%08x) (%d)\n", 745 protections, vmid, addr, 746 REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS, 747 MEMORY_CLIENT_RW) ? 748 "write" : "read", block, mc_client, mc_id); 749 } 750 751 752 static const u32 mc_cg_registers[] = { 753 mmMC_HUB_MISC_HUB_CG, 754 mmMC_HUB_MISC_SIP_CG, 755 mmMC_HUB_MISC_VM_CG, 756 mmMC_XPB_CLK_GAT, 757 mmATC_MISC_CG, 758 mmMC_CITF_MISC_WR_CG, 759 mmMC_CITF_MISC_RD_CG, 760 mmMC_CITF_MISC_VM_CG, 761 mmVM_L2_CG, 762 }; 763 764 static const u32 mc_cg_ls_en[] = { 765 MC_HUB_MISC_HUB_CG__MEM_LS_ENABLE_MASK, 766 MC_HUB_MISC_SIP_CG__MEM_LS_ENABLE_MASK, 767 MC_HUB_MISC_VM_CG__MEM_LS_ENABLE_MASK, 768 MC_XPB_CLK_GAT__MEM_LS_ENABLE_MASK, 769 ATC_MISC_CG__MEM_LS_ENABLE_MASK, 770 MC_CITF_MISC_WR_CG__MEM_LS_ENABLE_MASK, 771 MC_CITF_MISC_RD_CG__MEM_LS_ENABLE_MASK, 772 MC_CITF_MISC_VM_CG__MEM_LS_ENABLE_MASK, 773 VM_L2_CG__MEM_LS_ENABLE_MASK, 774 }; 775 776 static const u32 mc_cg_en[] = { 777 MC_HUB_MISC_HUB_CG__ENABLE_MASK, 778 MC_HUB_MISC_SIP_CG__ENABLE_MASK, 779 MC_HUB_MISC_VM_CG__ENABLE_MASK, 780 MC_XPB_CLK_GAT__ENABLE_MASK, 781 ATC_MISC_CG__ENABLE_MASK, 782 MC_CITF_MISC_WR_CG__ENABLE_MASK, 783 MC_CITF_MISC_RD_CG__ENABLE_MASK, 784 MC_CITF_MISC_VM_CG__ENABLE_MASK, 785 VM_L2_CG__ENABLE_MASK, 786 }; 787 788 static void gmc_v7_0_enable_mc_ls(struct amdgpu_device *adev, 789 bool enable) 790 { 791 int i; 792 u32 orig, data; 793 794 for (i = 0; i < ARRAY_SIZE(mc_cg_registers); i++) { 795 orig = data = RREG32(mc_cg_registers[i]); 796 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_MC_LS)) 797 data |= mc_cg_ls_en[i]; 798 else 799 data &= ~mc_cg_ls_en[i]; 800 if (data != orig) 801 WREG32(mc_cg_registers[i], data); 802 } 803 } 804 805 static void gmc_v7_0_enable_mc_mgcg(struct amdgpu_device *adev, 806 bool enable) 807 { 808 int i; 809 u32 orig, data; 810 811 for (i = 0; i < ARRAY_SIZE(mc_cg_registers); i++) { 812 orig = data = RREG32(mc_cg_registers[i]); 813 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_MC_MGCG)) 814 data |= mc_cg_en[i]; 815 else 816 data &= ~mc_cg_en[i]; 817 if (data != orig) 818 WREG32(mc_cg_registers[i], data); 819 } 820 } 821 822 static void gmc_v7_0_enable_bif_mgls(struct amdgpu_device *adev, 823 bool enable) 824 { 825 u32 orig, data; 826 827 orig = data = RREG32_PCIE(ixPCIE_CNTL2); 828 829 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_BIF_LS)) { 830 data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_LS_EN, 1); 831 data = REG_SET_FIELD(data, PCIE_CNTL2, MST_MEM_LS_EN, 1); 832 data = REG_SET_FIELD(data, PCIE_CNTL2, REPLAY_MEM_LS_EN, 1); 833 data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_AGGRESSIVE_LS_EN, 1); 834 } else { 835 data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_LS_EN, 0); 836 data = REG_SET_FIELD(data, PCIE_CNTL2, MST_MEM_LS_EN, 0); 837 data = REG_SET_FIELD(data, PCIE_CNTL2, REPLAY_MEM_LS_EN, 0); 838 data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_AGGRESSIVE_LS_EN, 0); 839 } 840 841 if (orig != data) 842 WREG32_PCIE(ixPCIE_CNTL2, data); 843 } 844 845 static void gmc_v7_0_enable_hdp_mgcg(struct amdgpu_device *adev, 846 bool enable) 847 { 848 u32 orig, data; 849 850 orig = data = RREG32(mmHDP_HOST_PATH_CNTL); 851 852 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_HDP_MGCG)) 853 data = REG_SET_FIELD(data, HDP_HOST_PATH_CNTL, CLOCK_GATING_DIS, 0); 854 else 855 data = REG_SET_FIELD(data, HDP_HOST_PATH_CNTL, CLOCK_GATING_DIS, 1); 856 857 if (orig != data) 858 WREG32(mmHDP_HOST_PATH_CNTL, data); 859 } 860 861 static void gmc_v7_0_enable_hdp_ls(struct amdgpu_device *adev, 862 bool enable) 863 { 864 u32 orig, data; 865 866 orig = data = RREG32(mmHDP_MEM_POWER_LS); 867 868 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_HDP_LS)) 869 data = REG_SET_FIELD(data, HDP_MEM_POWER_LS, LS_ENABLE, 1); 870 else 871 data = REG_SET_FIELD(data, HDP_MEM_POWER_LS, LS_ENABLE, 0); 872 873 if (orig != data) 874 WREG32(mmHDP_MEM_POWER_LS, data); 875 } 876 877 static int gmc_v7_0_convert_vram_type(int mc_seq_vram_type) 878 { 879 switch (mc_seq_vram_type) { 880 case MC_SEQ_MISC0__MT__GDDR1: 881 return AMDGPU_VRAM_TYPE_GDDR1; 882 case MC_SEQ_MISC0__MT__DDR2: 883 return AMDGPU_VRAM_TYPE_DDR2; 884 case MC_SEQ_MISC0__MT__GDDR3: 885 return AMDGPU_VRAM_TYPE_GDDR3; 886 case MC_SEQ_MISC0__MT__GDDR4: 887 return AMDGPU_VRAM_TYPE_GDDR4; 888 case MC_SEQ_MISC0__MT__GDDR5: 889 return AMDGPU_VRAM_TYPE_GDDR5; 890 case MC_SEQ_MISC0__MT__HBM: 891 return AMDGPU_VRAM_TYPE_HBM; 892 case MC_SEQ_MISC0__MT__DDR3: 893 return AMDGPU_VRAM_TYPE_DDR3; 894 default: 895 return AMDGPU_VRAM_TYPE_UNKNOWN; 896 } 897 } 898 899 static int gmc_v7_0_early_init(void *handle) 900 { 901 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 902 903 gmc_v7_0_set_gart_funcs(adev); 904 gmc_v7_0_set_irq_funcs(adev); 905 906 return 0; 907 } 908 909 static int gmc_v7_0_late_init(void *handle) 910 { 911 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 912 913 if (amdgpu_vm_fault_stop != AMDGPU_VM_FAULT_STOP_ALWAYS) 914 return amdgpu_irq_get(adev, &adev->mc.vm_fault, 0); 915 else 916 return 0; 917 } 918 919 static int gmc_v7_0_sw_init(void *handle) 920 { 921 int r; 922 int dma_bits; 923 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 924 925 if (adev->flags & AMD_IS_APU) { 926 adev->mc.vram_type = AMDGPU_VRAM_TYPE_UNKNOWN; 927 } else { 928 u32 tmp = RREG32(mmMC_SEQ_MISC0); 929 tmp &= MC_SEQ_MISC0__MT__MASK; 930 adev->mc.vram_type = gmc_v7_0_convert_vram_type(tmp); 931 } 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_force_release(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 int gmc_v7_0_soft_reset(void *handle) 1121 { 1122 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1123 struct amdgpu_mode_mc_save save; 1124 u32 srbm_soft_reset = 0; 1125 u32 tmp = RREG32(mmSRBM_STATUS); 1126 1127 if (tmp & SRBM_STATUS__VMC_BUSY_MASK) 1128 srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset, 1129 SRBM_SOFT_RESET, SOFT_RESET_VMC, 1); 1130 1131 if (tmp & (SRBM_STATUS__MCB_BUSY_MASK | SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK | 1132 SRBM_STATUS__MCC_BUSY_MASK | SRBM_STATUS__MCD_BUSY_MASK)) { 1133 if (!(adev->flags & AMD_IS_APU)) 1134 srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset, 1135 SRBM_SOFT_RESET, SOFT_RESET_MC, 1); 1136 } 1137 1138 if (srbm_soft_reset) { 1139 gmc_v7_0_mc_stop(adev, &save); 1140 if (gmc_v7_0_wait_for_idle(adev)) { 1141 dev_warn(adev->dev, "Wait for GMC idle timed out !\n"); 1142 } 1143 1144 1145 tmp = RREG32(mmSRBM_SOFT_RESET); 1146 tmp |= srbm_soft_reset; 1147 dev_info(adev->dev, "SRBM_SOFT_RESET=0x%08X\n", tmp); 1148 WREG32(mmSRBM_SOFT_RESET, tmp); 1149 tmp = RREG32(mmSRBM_SOFT_RESET); 1150 1151 udelay(50); 1152 1153 tmp &= ~srbm_soft_reset; 1154 WREG32(mmSRBM_SOFT_RESET, tmp); 1155 tmp = RREG32(mmSRBM_SOFT_RESET); 1156 1157 /* Wait a little for things to settle down */ 1158 udelay(50); 1159 1160 gmc_v7_0_mc_resume(adev, &save); 1161 udelay(50); 1162 } 1163 1164 return 0; 1165 } 1166 1167 static int gmc_v7_0_vm_fault_interrupt_state(struct amdgpu_device *adev, 1168 struct amdgpu_irq_src *src, 1169 unsigned type, 1170 enum amdgpu_interrupt_state state) 1171 { 1172 u32 tmp; 1173 u32 bits = (VM_CONTEXT1_CNTL__RANGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | 1174 VM_CONTEXT1_CNTL__DUMMY_PAGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | 1175 VM_CONTEXT1_CNTL__PDE0_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | 1176 VM_CONTEXT1_CNTL__VALID_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | 1177 VM_CONTEXT1_CNTL__READ_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | 1178 VM_CONTEXT1_CNTL__WRITE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK); 1179 1180 switch (state) { 1181 case AMDGPU_IRQ_STATE_DISABLE: 1182 /* system context */ 1183 tmp = RREG32(mmVM_CONTEXT0_CNTL); 1184 tmp &= ~bits; 1185 WREG32(mmVM_CONTEXT0_CNTL, tmp); 1186 /* VMs */ 1187 tmp = RREG32(mmVM_CONTEXT1_CNTL); 1188 tmp &= ~bits; 1189 WREG32(mmVM_CONTEXT1_CNTL, tmp); 1190 break; 1191 case AMDGPU_IRQ_STATE_ENABLE: 1192 /* system context */ 1193 tmp = RREG32(mmVM_CONTEXT0_CNTL); 1194 tmp |= bits; 1195 WREG32(mmVM_CONTEXT0_CNTL, tmp); 1196 /* VMs */ 1197 tmp = RREG32(mmVM_CONTEXT1_CNTL); 1198 tmp |= bits; 1199 WREG32(mmVM_CONTEXT1_CNTL, tmp); 1200 break; 1201 default: 1202 break; 1203 } 1204 1205 return 0; 1206 } 1207 1208 static int gmc_v7_0_process_interrupt(struct amdgpu_device *adev, 1209 struct amdgpu_irq_src *source, 1210 struct amdgpu_iv_entry *entry) 1211 { 1212 u32 addr, status, mc_client; 1213 1214 addr = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_ADDR); 1215 status = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_STATUS); 1216 mc_client = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_MCCLIENT); 1217 /* reset addr and status */ 1218 WREG32_P(mmVM_CONTEXT1_CNTL2, 1, ~1); 1219 1220 if (!addr && !status) 1221 return 0; 1222 1223 if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_FIRST) 1224 gmc_v7_0_set_fault_enable_default(adev, false); 1225 1226 dev_err(adev->dev, "GPU fault detected: %d 0x%08x\n", 1227 entry->src_id, entry->src_data); 1228 dev_err(adev->dev, " VM_CONTEXT1_PROTECTION_FAULT_ADDR 0x%08X\n", 1229 addr); 1230 dev_err(adev->dev, " VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x%08X\n", 1231 status); 1232 gmc_v7_0_vm_decode_fault(adev, status, addr, mc_client); 1233 1234 return 0; 1235 } 1236 1237 static int gmc_v7_0_set_clockgating_state(void *handle, 1238 enum amd_clockgating_state state) 1239 { 1240 bool gate = false; 1241 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1242 1243 if (state == AMD_CG_STATE_GATE) 1244 gate = true; 1245 1246 if (!(adev->flags & AMD_IS_APU)) { 1247 gmc_v7_0_enable_mc_mgcg(adev, gate); 1248 gmc_v7_0_enable_mc_ls(adev, gate); 1249 } 1250 gmc_v7_0_enable_bif_mgls(adev, gate); 1251 gmc_v7_0_enable_hdp_mgcg(adev, gate); 1252 gmc_v7_0_enable_hdp_ls(adev, gate); 1253 1254 return 0; 1255 } 1256 1257 static int gmc_v7_0_set_powergating_state(void *handle, 1258 enum amd_powergating_state state) 1259 { 1260 return 0; 1261 } 1262 1263 const struct amd_ip_funcs gmc_v7_0_ip_funcs = { 1264 .name = "gmc_v7_0", 1265 .early_init = gmc_v7_0_early_init, 1266 .late_init = gmc_v7_0_late_init, 1267 .sw_init = gmc_v7_0_sw_init, 1268 .sw_fini = gmc_v7_0_sw_fini, 1269 .hw_init = gmc_v7_0_hw_init, 1270 .hw_fini = gmc_v7_0_hw_fini, 1271 .suspend = gmc_v7_0_suspend, 1272 .resume = gmc_v7_0_resume, 1273 .is_idle = gmc_v7_0_is_idle, 1274 .wait_for_idle = gmc_v7_0_wait_for_idle, 1275 .soft_reset = gmc_v7_0_soft_reset, 1276 .set_clockgating_state = gmc_v7_0_set_clockgating_state, 1277 .set_powergating_state = gmc_v7_0_set_powergating_state, 1278 }; 1279 1280 static const struct amdgpu_gart_funcs gmc_v7_0_gart_funcs = { 1281 .flush_gpu_tlb = gmc_v7_0_gart_flush_gpu_tlb, 1282 .set_pte_pde = gmc_v7_0_gart_set_pte_pde, 1283 }; 1284 1285 static const struct amdgpu_irq_src_funcs gmc_v7_0_irq_funcs = { 1286 .set = gmc_v7_0_vm_fault_interrupt_state, 1287 .process = gmc_v7_0_process_interrupt, 1288 }; 1289 1290 static void gmc_v7_0_set_gart_funcs(struct amdgpu_device *adev) 1291 { 1292 if (adev->gart.gart_funcs == NULL) 1293 adev->gart.gart_funcs = &gmc_v7_0_gart_funcs; 1294 } 1295 1296 static void gmc_v7_0_set_irq_funcs(struct amdgpu_device *adev) 1297 { 1298 adev->mc.vm_fault.num_types = 1; 1299 adev->mc.vm_fault.funcs = &gmc_v7_0_irq_funcs; 1300 } 1301