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 24 #include <linux/firmware.h> 25 #include <linux/module.h> 26 #include <linux/pci.h> 27 28 #include <drm/drm_cache.h> 29 #include "amdgpu.h" 30 #include "gmc_v8_0.h" 31 #include "amdgpu_ucode.h" 32 #include "amdgpu_amdkfd.h" 33 #include "amdgpu_gem.h" 34 35 #include "gmc/gmc_8_1_d.h" 36 #include "gmc/gmc_8_1_sh_mask.h" 37 38 #include "bif/bif_5_0_d.h" 39 #include "bif/bif_5_0_sh_mask.h" 40 41 #include "oss/oss_3_0_d.h" 42 #include "oss/oss_3_0_sh_mask.h" 43 44 #include "dce/dce_10_0_d.h" 45 #include "dce/dce_10_0_sh_mask.h" 46 47 #include "vid.h" 48 #include "vi.h" 49 50 #include "amdgpu_atombios.h" 51 52 #include "ivsrcid/ivsrcid_vislands30.h" 53 54 static void gmc_v8_0_set_gmc_funcs(struct amdgpu_device *adev); 55 static void gmc_v8_0_set_irq_funcs(struct amdgpu_device *adev); 56 static int gmc_v8_0_wait_for_idle(void *handle); 57 58 MODULE_FIRMWARE("amdgpu/tonga_mc.bin"); 59 MODULE_FIRMWARE("amdgpu/polaris11_mc.bin"); 60 MODULE_FIRMWARE("amdgpu/polaris10_mc.bin"); 61 MODULE_FIRMWARE("amdgpu/polaris12_mc.bin"); 62 MODULE_FIRMWARE("amdgpu/polaris11_k_mc.bin"); 63 MODULE_FIRMWARE("amdgpu/polaris10_k_mc.bin"); 64 MODULE_FIRMWARE("amdgpu/polaris12_k_mc.bin"); 65 66 static const u32 golden_settings_tonga_a11[] = 67 { 68 mmMC_ARB_WTM_GRPWT_RD, 0x00000003, 0x00000000, 69 mmMC_HUB_RDREQ_DMIF_LIMIT, 0x0000007f, 0x00000028, 70 mmMC_HUB_WDP_UMC, 0x00007fb6, 0x00000991, 71 mmVM_PRT_APERTURE0_LOW_ADDR, 0x0fffffff, 0x0fffffff, 72 mmVM_PRT_APERTURE1_LOW_ADDR, 0x0fffffff, 0x0fffffff, 73 mmVM_PRT_APERTURE2_LOW_ADDR, 0x0fffffff, 0x0fffffff, 74 mmVM_PRT_APERTURE3_LOW_ADDR, 0x0fffffff, 0x0fffffff, 75 }; 76 77 static const u32 tonga_mgcg_cgcg_init[] = 78 { 79 mmMC_MEM_POWER_LS, 0xffffffff, 0x00000104 80 }; 81 82 static const u32 golden_settings_fiji_a10[] = 83 { 84 mmVM_PRT_APERTURE0_LOW_ADDR, 0x0fffffff, 0x0fffffff, 85 mmVM_PRT_APERTURE1_LOW_ADDR, 0x0fffffff, 0x0fffffff, 86 mmVM_PRT_APERTURE2_LOW_ADDR, 0x0fffffff, 0x0fffffff, 87 mmVM_PRT_APERTURE3_LOW_ADDR, 0x0fffffff, 0x0fffffff, 88 }; 89 90 static const u32 fiji_mgcg_cgcg_init[] = 91 { 92 mmMC_MEM_POWER_LS, 0xffffffff, 0x00000104 93 }; 94 95 static const u32 golden_settings_polaris11_a11[] = 96 { 97 mmVM_PRT_APERTURE0_LOW_ADDR, 0x0fffffff, 0x0fffffff, 98 mmVM_PRT_APERTURE1_LOW_ADDR, 0x0fffffff, 0x0fffffff, 99 mmVM_PRT_APERTURE2_LOW_ADDR, 0x0fffffff, 0x0fffffff, 100 mmVM_PRT_APERTURE3_LOW_ADDR, 0x0fffffff, 0x0fffffff 101 }; 102 103 static const u32 golden_settings_polaris10_a11[] = 104 { 105 mmMC_ARB_WTM_GRPWT_RD, 0x00000003, 0x00000000, 106 mmVM_PRT_APERTURE0_LOW_ADDR, 0x0fffffff, 0x0fffffff, 107 mmVM_PRT_APERTURE1_LOW_ADDR, 0x0fffffff, 0x0fffffff, 108 mmVM_PRT_APERTURE2_LOW_ADDR, 0x0fffffff, 0x0fffffff, 109 mmVM_PRT_APERTURE3_LOW_ADDR, 0x0fffffff, 0x0fffffff 110 }; 111 112 static const u32 cz_mgcg_cgcg_init[] = 113 { 114 mmMC_MEM_POWER_LS, 0xffffffff, 0x00000104 115 }; 116 117 static const u32 stoney_mgcg_cgcg_init[] = 118 { 119 mmATC_MISC_CG, 0xffffffff, 0x000c0200, 120 mmMC_MEM_POWER_LS, 0xffffffff, 0x00000104 121 }; 122 123 static const u32 golden_settings_stoney_common[] = 124 { 125 mmMC_HUB_RDREQ_UVD, MC_HUB_RDREQ_UVD__PRESCALE_MASK, 0x00000004, 126 mmMC_RD_GRP_OTH, MC_RD_GRP_OTH__UVD_MASK, 0x00600000 127 }; 128 129 static void gmc_v8_0_init_golden_registers(struct amdgpu_device *adev) 130 { 131 switch (adev->asic_type) { 132 case CHIP_FIJI: 133 amdgpu_device_program_register_sequence(adev, 134 fiji_mgcg_cgcg_init, 135 ARRAY_SIZE(fiji_mgcg_cgcg_init)); 136 amdgpu_device_program_register_sequence(adev, 137 golden_settings_fiji_a10, 138 ARRAY_SIZE(golden_settings_fiji_a10)); 139 break; 140 case CHIP_TONGA: 141 amdgpu_device_program_register_sequence(adev, 142 tonga_mgcg_cgcg_init, 143 ARRAY_SIZE(tonga_mgcg_cgcg_init)); 144 amdgpu_device_program_register_sequence(adev, 145 golden_settings_tonga_a11, 146 ARRAY_SIZE(golden_settings_tonga_a11)); 147 break; 148 case CHIP_POLARIS11: 149 case CHIP_POLARIS12: 150 case CHIP_VEGAM: 151 amdgpu_device_program_register_sequence(adev, 152 golden_settings_polaris11_a11, 153 ARRAY_SIZE(golden_settings_polaris11_a11)); 154 break; 155 case CHIP_POLARIS10: 156 amdgpu_device_program_register_sequence(adev, 157 golden_settings_polaris10_a11, 158 ARRAY_SIZE(golden_settings_polaris10_a11)); 159 break; 160 case CHIP_CARRIZO: 161 amdgpu_device_program_register_sequence(adev, 162 cz_mgcg_cgcg_init, 163 ARRAY_SIZE(cz_mgcg_cgcg_init)); 164 break; 165 case CHIP_STONEY: 166 amdgpu_device_program_register_sequence(adev, 167 stoney_mgcg_cgcg_init, 168 ARRAY_SIZE(stoney_mgcg_cgcg_init)); 169 amdgpu_device_program_register_sequence(adev, 170 golden_settings_stoney_common, 171 ARRAY_SIZE(golden_settings_stoney_common)); 172 break; 173 default: 174 break; 175 } 176 } 177 178 static void gmc_v8_0_mc_stop(struct amdgpu_device *adev) 179 { 180 u32 blackout; 181 182 gmc_v8_0_wait_for_idle(adev); 183 184 blackout = RREG32(mmMC_SHARED_BLACKOUT_CNTL); 185 if (REG_GET_FIELD(blackout, MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE) != 1) { 186 /* Block CPU access */ 187 WREG32(mmBIF_FB_EN, 0); 188 /* blackout the MC */ 189 blackout = REG_SET_FIELD(blackout, 190 MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE, 1); 191 WREG32(mmMC_SHARED_BLACKOUT_CNTL, blackout); 192 } 193 /* wait for the MC to settle */ 194 udelay(100); 195 } 196 197 static void gmc_v8_0_mc_resume(struct amdgpu_device *adev) 198 { 199 u32 tmp; 200 201 /* unblackout the MC */ 202 tmp = RREG32(mmMC_SHARED_BLACKOUT_CNTL); 203 tmp = REG_SET_FIELD(tmp, MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE, 0); 204 WREG32(mmMC_SHARED_BLACKOUT_CNTL, tmp); 205 /* allow CPU access */ 206 tmp = REG_SET_FIELD(0, BIF_FB_EN, FB_READ_EN, 1); 207 tmp = REG_SET_FIELD(tmp, BIF_FB_EN, FB_WRITE_EN, 1); 208 WREG32(mmBIF_FB_EN, tmp); 209 } 210 211 /** 212 * gmc_v8_0_init_microcode - load ucode images from disk 213 * 214 * @adev: amdgpu_device pointer 215 * 216 * Use the firmware interface to load the ucode images into 217 * the driver (not loaded into hw). 218 * Returns 0 on success, error on failure. 219 */ 220 static int gmc_v8_0_init_microcode(struct amdgpu_device *adev) 221 { 222 const char *chip_name; 223 char fw_name[30]; 224 int err; 225 226 DRM_DEBUG("\n"); 227 228 switch (adev->asic_type) { 229 case CHIP_TONGA: 230 chip_name = "tonga"; 231 break; 232 case CHIP_POLARIS11: 233 if (((adev->pdev->device == 0x67ef) && 234 ((adev->pdev->revision == 0xe0) || 235 (adev->pdev->revision == 0xe5))) || 236 ((adev->pdev->device == 0x67ff) && 237 ((adev->pdev->revision == 0xcf) || 238 (adev->pdev->revision == 0xef) || 239 (adev->pdev->revision == 0xff)))) 240 chip_name = "polaris11_k"; 241 else if ((adev->pdev->device == 0x67ef) && 242 (adev->pdev->revision == 0xe2)) 243 chip_name = "polaris11_k"; 244 else 245 chip_name = "polaris11"; 246 break; 247 case CHIP_POLARIS10: 248 if ((adev->pdev->device == 0x67df) && 249 ((adev->pdev->revision == 0xe1) || 250 (adev->pdev->revision == 0xf7))) 251 chip_name = "polaris10_k"; 252 else 253 chip_name = "polaris10"; 254 break; 255 case CHIP_POLARIS12: 256 if (((adev->pdev->device == 0x6987) && 257 ((adev->pdev->revision == 0xc0) || 258 (adev->pdev->revision == 0xc3))) || 259 ((adev->pdev->device == 0x6981) && 260 ((adev->pdev->revision == 0x00) || 261 (adev->pdev->revision == 0x01) || 262 (adev->pdev->revision == 0x10)))) 263 chip_name = "polaris12_k"; 264 else 265 chip_name = "polaris12"; 266 break; 267 case CHIP_FIJI: 268 case CHIP_CARRIZO: 269 case CHIP_STONEY: 270 case CHIP_VEGAM: 271 return 0; 272 default: BUG(); 273 } 274 275 snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_mc.bin", chip_name); 276 err = request_firmware(&adev->gmc.fw, fw_name, adev->dev); 277 if (err) 278 goto out; 279 err = amdgpu_ucode_validate(adev->gmc.fw); 280 281 out: 282 if (err) { 283 pr_err("mc: Failed to load firmware \"%s\"\n", fw_name); 284 release_firmware(adev->gmc.fw); 285 adev->gmc.fw = NULL; 286 } 287 return err; 288 } 289 290 /** 291 * gmc_v8_0_tonga_mc_load_microcode - load tonga MC ucode into the hw 292 * 293 * @adev: amdgpu_device pointer 294 * 295 * Load the GDDR MC ucode into the hw (VI). 296 * Returns 0 on success, error on failure. 297 */ 298 static int gmc_v8_0_tonga_mc_load_microcode(struct amdgpu_device *adev) 299 { 300 const struct mc_firmware_header_v1_0 *hdr; 301 const __le32 *fw_data = NULL; 302 const __le32 *io_mc_regs = NULL; 303 u32 running; 304 int i, ucode_size, regs_size; 305 306 /* Skip MC ucode loading on SR-IOV capable boards. 307 * vbios does this for us in asic_init in that case. 308 * Skip MC ucode loading on VF, because hypervisor will do that 309 * for this adaptor. 310 */ 311 if (amdgpu_sriov_bios(adev)) 312 return 0; 313 314 if (!adev->gmc.fw) 315 return -EINVAL; 316 317 hdr = (const struct mc_firmware_header_v1_0 *)adev->gmc.fw->data; 318 amdgpu_ucode_print_mc_hdr(&hdr->header); 319 320 adev->gmc.fw_version = le32_to_cpu(hdr->header.ucode_version); 321 regs_size = le32_to_cpu(hdr->io_debug_size_bytes) / (4 * 2); 322 io_mc_regs = (const __le32 *) 323 (adev->gmc.fw->data + le32_to_cpu(hdr->io_debug_array_offset_bytes)); 324 ucode_size = le32_to_cpu(hdr->header.ucode_size_bytes) / 4; 325 fw_data = (const __le32 *) 326 (adev->gmc.fw->data + le32_to_cpu(hdr->header.ucode_array_offset_bytes)); 327 328 running = REG_GET_FIELD(RREG32(mmMC_SEQ_SUP_CNTL), MC_SEQ_SUP_CNTL, RUN); 329 330 if (running == 0) { 331 /* reset the engine and set to writable */ 332 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000008); 333 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000010); 334 335 /* load mc io regs */ 336 for (i = 0; i < regs_size; i++) { 337 WREG32(mmMC_SEQ_IO_DEBUG_INDEX, le32_to_cpup(io_mc_regs++)); 338 WREG32(mmMC_SEQ_IO_DEBUG_DATA, le32_to_cpup(io_mc_regs++)); 339 } 340 /* load the MC ucode */ 341 for (i = 0; i < ucode_size; i++) 342 WREG32(mmMC_SEQ_SUP_PGM, le32_to_cpup(fw_data++)); 343 344 /* put the engine back into the active state */ 345 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000008); 346 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000004); 347 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000001); 348 349 /* wait for training to complete */ 350 for (i = 0; i < adev->usec_timeout; i++) { 351 if (REG_GET_FIELD(RREG32(mmMC_SEQ_TRAIN_WAKEUP_CNTL), 352 MC_SEQ_TRAIN_WAKEUP_CNTL, TRAIN_DONE_D0)) 353 break; 354 udelay(1); 355 } 356 for (i = 0; i < adev->usec_timeout; i++) { 357 if (REG_GET_FIELD(RREG32(mmMC_SEQ_TRAIN_WAKEUP_CNTL), 358 MC_SEQ_TRAIN_WAKEUP_CNTL, TRAIN_DONE_D1)) 359 break; 360 udelay(1); 361 } 362 } 363 364 return 0; 365 } 366 367 static int gmc_v8_0_polaris_mc_load_microcode(struct amdgpu_device *adev) 368 { 369 const struct mc_firmware_header_v1_0 *hdr; 370 const __le32 *fw_data = NULL; 371 const __le32 *io_mc_regs = NULL; 372 u32 data; 373 int i, ucode_size, regs_size; 374 375 /* Skip MC ucode loading on SR-IOV capable boards. 376 * vbios does this for us in asic_init in that case. 377 * Skip MC ucode loading on VF, because hypervisor will do that 378 * for this adaptor. 379 */ 380 if (amdgpu_sriov_bios(adev)) 381 return 0; 382 383 if (!adev->gmc.fw) 384 return -EINVAL; 385 386 hdr = (const struct mc_firmware_header_v1_0 *)adev->gmc.fw->data; 387 amdgpu_ucode_print_mc_hdr(&hdr->header); 388 389 adev->gmc.fw_version = le32_to_cpu(hdr->header.ucode_version); 390 regs_size = le32_to_cpu(hdr->io_debug_size_bytes) / (4 * 2); 391 io_mc_regs = (const __le32 *) 392 (adev->gmc.fw->data + le32_to_cpu(hdr->io_debug_array_offset_bytes)); 393 ucode_size = le32_to_cpu(hdr->header.ucode_size_bytes) / 4; 394 fw_data = (const __le32 *) 395 (adev->gmc.fw->data + le32_to_cpu(hdr->header.ucode_array_offset_bytes)); 396 397 data = RREG32(mmMC_SEQ_MISC0); 398 data &= ~(0x40); 399 WREG32(mmMC_SEQ_MISC0, data); 400 401 /* load mc io regs */ 402 for (i = 0; i < regs_size; i++) { 403 WREG32(mmMC_SEQ_IO_DEBUG_INDEX, le32_to_cpup(io_mc_regs++)); 404 WREG32(mmMC_SEQ_IO_DEBUG_DATA, le32_to_cpup(io_mc_regs++)); 405 } 406 407 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000008); 408 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000010); 409 410 /* load the MC ucode */ 411 for (i = 0; i < ucode_size; i++) 412 WREG32(mmMC_SEQ_SUP_PGM, le32_to_cpup(fw_data++)); 413 414 /* put the engine back into the active state */ 415 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000008); 416 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000004); 417 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000001); 418 419 /* wait for training to complete */ 420 for (i = 0; i < adev->usec_timeout; i++) { 421 data = RREG32(mmMC_SEQ_MISC0); 422 if (data & 0x80) 423 break; 424 udelay(1); 425 } 426 427 return 0; 428 } 429 430 static void gmc_v8_0_vram_gtt_location(struct amdgpu_device *adev, 431 struct amdgpu_gmc *mc) 432 { 433 u64 base = 0; 434 435 if (!amdgpu_sriov_vf(adev)) 436 base = RREG32(mmMC_VM_FB_LOCATION) & 0xFFFF; 437 base <<= 24; 438 439 amdgpu_gmc_vram_location(adev, mc, base); 440 amdgpu_gmc_gart_location(adev, mc); 441 } 442 443 /** 444 * gmc_v8_0_mc_program - program the GPU memory controller 445 * 446 * @adev: amdgpu_device pointer 447 * 448 * Set the location of vram, gart, and AGP in the GPU's 449 * physical address space (VI). 450 */ 451 static void gmc_v8_0_mc_program(struct amdgpu_device *adev) 452 { 453 u32 tmp; 454 int i, j; 455 456 /* Initialize HDP */ 457 for (i = 0, j = 0; i < 32; i++, j += 0x6) { 458 WREG32((0xb05 + j), 0x00000000); 459 WREG32((0xb06 + j), 0x00000000); 460 WREG32((0xb07 + j), 0x00000000); 461 WREG32((0xb08 + j), 0x00000000); 462 WREG32((0xb09 + j), 0x00000000); 463 } 464 WREG32(mmHDP_REG_COHERENCY_FLUSH_CNTL, 0); 465 466 if (gmc_v8_0_wait_for_idle((void *)adev)) { 467 dev_warn(adev->dev, "Wait for MC idle timedout !\n"); 468 } 469 if (adev->mode_info.num_crtc) { 470 /* Lockout access through VGA aperture*/ 471 tmp = RREG32(mmVGA_HDP_CONTROL); 472 tmp = REG_SET_FIELD(tmp, VGA_HDP_CONTROL, VGA_MEMORY_DISABLE, 1); 473 WREG32(mmVGA_HDP_CONTROL, tmp); 474 475 /* disable VGA render */ 476 tmp = RREG32(mmVGA_RENDER_CONTROL); 477 tmp = REG_SET_FIELD(tmp, VGA_RENDER_CONTROL, VGA_VSTATUS_CNTL, 0); 478 WREG32(mmVGA_RENDER_CONTROL, tmp); 479 } 480 /* Update configuration */ 481 WREG32(mmMC_VM_SYSTEM_APERTURE_LOW_ADDR, 482 adev->gmc.vram_start >> 12); 483 WREG32(mmMC_VM_SYSTEM_APERTURE_HIGH_ADDR, 484 adev->gmc.vram_end >> 12); 485 WREG32(mmMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR, 486 adev->vram_scratch.gpu_addr >> 12); 487 488 if (amdgpu_sriov_vf(adev)) { 489 tmp = ((adev->gmc.vram_end >> 24) & 0xFFFF) << 16; 490 tmp |= ((adev->gmc.vram_start >> 24) & 0xFFFF); 491 WREG32(mmMC_VM_FB_LOCATION, tmp); 492 /* XXX double check these! */ 493 WREG32(mmHDP_NONSURFACE_BASE, (adev->gmc.vram_start >> 8)); 494 WREG32(mmHDP_NONSURFACE_INFO, (2 << 7) | (1 << 30)); 495 WREG32(mmHDP_NONSURFACE_SIZE, 0x3FFFFFFF); 496 } 497 498 WREG32(mmMC_VM_AGP_BASE, 0); 499 WREG32(mmMC_VM_AGP_TOP, 0x0FFFFFFF); 500 WREG32(mmMC_VM_AGP_BOT, 0x0FFFFFFF); 501 if (gmc_v8_0_wait_for_idle((void *)adev)) { 502 dev_warn(adev->dev, "Wait for MC idle timedout !\n"); 503 } 504 505 WREG32(mmBIF_FB_EN, BIF_FB_EN__FB_READ_EN_MASK | BIF_FB_EN__FB_WRITE_EN_MASK); 506 507 tmp = RREG32(mmHDP_MISC_CNTL); 508 tmp = REG_SET_FIELD(tmp, HDP_MISC_CNTL, FLUSH_INVALIDATE_CACHE, 0); 509 WREG32(mmHDP_MISC_CNTL, tmp); 510 511 tmp = RREG32(mmHDP_HOST_PATH_CNTL); 512 WREG32(mmHDP_HOST_PATH_CNTL, tmp); 513 } 514 515 /** 516 * gmc_v8_0_mc_init - initialize the memory controller driver params 517 * 518 * @adev: amdgpu_device pointer 519 * 520 * Look up the amount of vram, vram width, and decide how to place 521 * vram and gart within the GPU's physical address space (VI). 522 * Returns 0 for success. 523 */ 524 static int gmc_v8_0_mc_init(struct amdgpu_device *adev) 525 { 526 int r; 527 528 adev->gmc.vram_width = amdgpu_atombios_get_vram_width(adev); 529 if (!adev->gmc.vram_width) { 530 u32 tmp; 531 int chansize, numchan; 532 533 /* Get VRAM informations */ 534 tmp = RREG32(mmMC_ARB_RAMCFG); 535 if (REG_GET_FIELD(tmp, MC_ARB_RAMCFG, CHANSIZE)) { 536 chansize = 64; 537 } else { 538 chansize = 32; 539 } 540 tmp = RREG32(mmMC_SHARED_CHMAP); 541 switch (REG_GET_FIELD(tmp, MC_SHARED_CHMAP, NOOFCHAN)) { 542 case 0: 543 default: 544 numchan = 1; 545 break; 546 case 1: 547 numchan = 2; 548 break; 549 case 2: 550 numchan = 4; 551 break; 552 case 3: 553 numchan = 8; 554 break; 555 case 4: 556 numchan = 3; 557 break; 558 case 5: 559 numchan = 6; 560 break; 561 case 6: 562 numchan = 10; 563 break; 564 case 7: 565 numchan = 12; 566 break; 567 case 8: 568 numchan = 16; 569 break; 570 } 571 adev->gmc.vram_width = numchan * chansize; 572 } 573 /* size in MB on si */ 574 adev->gmc.mc_vram_size = RREG32(mmCONFIG_MEMSIZE) * 1024ULL * 1024ULL; 575 adev->gmc.real_vram_size = RREG32(mmCONFIG_MEMSIZE) * 1024ULL * 1024ULL; 576 577 if (!(adev->flags & AMD_IS_APU)) { 578 r = amdgpu_device_resize_fb_bar(adev); 579 if (r) 580 return r; 581 } 582 adev->gmc.aper_base = pci_resource_start(adev->pdev, 0); 583 adev->gmc.aper_size = pci_resource_len(adev->pdev, 0); 584 585 #ifdef CONFIG_X86_64 586 if (adev->flags & AMD_IS_APU) { 587 adev->gmc.aper_base = ((u64)RREG32(mmMC_VM_FB_OFFSET)) << 22; 588 adev->gmc.aper_size = adev->gmc.real_vram_size; 589 } 590 #endif 591 592 /* In case the PCI BAR is larger than the actual amount of vram */ 593 adev->gmc.visible_vram_size = adev->gmc.aper_size; 594 if (adev->gmc.visible_vram_size > adev->gmc.real_vram_size) 595 adev->gmc.visible_vram_size = adev->gmc.real_vram_size; 596 597 /* set the gart size */ 598 if (amdgpu_gart_size == -1) { 599 switch (adev->asic_type) { 600 case CHIP_POLARIS10: /* all engines support GPUVM */ 601 case CHIP_POLARIS11: /* all engines support GPUVM */ 602 case CHIP_POLARIS12: /* all engines support GPUVM */ 603 case CHIP_VEGAM: /* all engines support GPUVM */ 604 default: 605 adev->gmc.gart_size = 256ULL << 20; 606 break; 607 case CHIP_TONGA: /* UVD, VCE do not support GPUVM */ 608 case CHIP_FIJI: /* UVD, VCE do not support GPUVM */ 609 case CHIP_CARRIZO: /* UVD, VCE do not support GPUVM, DCE SG support */ 610 case CHIP_STONEY: /* UVD does not support GPUVM, DCE SG support */ 611 adev->gmc.gart_size = 1024ULL << 20; 612 break; 613 } 614 } else { 615 adev->gmc.gart_size = (u64)amdgpu_gart_size << 20; 616 } 617 618 gmc_v8_0_vram_gtt_location(adev, &adev->gmc); 619 620 return 0; 621 } 622 623 /* 624 * GART 625 * VMID 0 is the physical GPU addresses as used by the kernel. 626 * VMIDs 1-15 are used for userspace clients and are handled 627 * by the amdgpu vm/hsa code. 628 */ 629 630 /** 631 * gmc_v8_0_flush_gpu_tlb - gart tlb flush callback 632 * 633 * @adev: amdgpu_device pointer 634 * @vmid: vm instance to flush 635 * 636 * Flush the TLB for the requested page table (VI). 637 */ 638 static void gmc_v8_0_flush_gpu_tlb(struct amdgpu_device *adev, 639 uint32_t vmid, uint32_t flush_type) 640 { 641 /* bits 0-15 are the VM contexts0-15 */ 642 WREG32(mmVM_INVALIDATE_REQUEST, 1 << vmid); 643 } 644 645 static uint64_t gmc_v8_0_emit_flush_gpu_tlb(struct amdgpu_ring *ring, 646 unsigned vmid, uint64_t pd_addr) 647 { 648 uint32_t reg; 649 650 if (vmid < 8) 651 reg = mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR + vmid; 652 else 653 reg = mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + vmid - 8; 654 amdgpu_ring_emit_wreg(ring, reg, pd_addr >> 12); 655 656 /* bits 0-15 are the VM contexts0-15 */ 657 amdgpu_ring_emit_wreg(ring, mmVM_INVALIDATE_REQUEST, 1 << vmid); 658 659 return pd_addr; 660 } 661 662 static void gmc_v8_0_emit_pasid_mapping(struct amdgpu_ring *ring, unsigned vmid, 663 unsigned pasid) 664 { 665 amdgpu_ring_emit_wreg(ring, mmIH_VMID_0_LUT + vmid, pasid); 666 } 667 668 /* 669 * PTE format on VI: 670 * 63:40 reserved 671 * 39:12 4k physical page base address 672 * 11:7 fragment 673 * 6 write 674 * 5 read 675 * 4 exe 676 * 3 reserved 677 * 2 snooped 678 * 1 system 679 * 0 valid 680 * 681 * PDE format on VI: 682 * 63:59 block fragment size 683 * 58:40 reserved 684 * 39:1 physical base address of PTE 685 * bits 5:1 must be 0. 686 * 0 valid 687 */ 688 689 static uint64_t gmc_v8_0_get_vm_pte_flags(struct amdgpu_device *adev, 690 uint32_t flags) 691 { 692 uint64_t pte_flag = 0; 693 694 if (flags & AMDGPU_VM_PAGE_EXECUTABLE) 695 pte_flag |= AMDGPU_PTE_EXECUTABLE; 696 if (flags & AMDGPU_VM_PAGE_READABLE) 697 pte_flag |= AMDGPU_PTE_READABLE; 698 if (flags & AMDGPU_VM_PAGE_WRITEABLE) 699 pte_flag |= AMDGPU_PTE_WRITEABLE; 700 if (flags & AMDGPU_VM_PAGE_PRT) 701 pte_flag |= AMDGPU_PTE_PRT; 702 703 return pte_flag; 704 } 705 706 static void gmc_v8_0_get_vm_pde(struct amdgpu_device *adev, int level, 707 uint64_t *addr, uint64_t *flags) 708 { 709 BUG_ON(*addr & 0xFFFFFF0000000FFFULL); 710 } 711 712 /** 713 * gmc_v8_0_set_fault_enable_default - update VM fault handling 714 * 715 * @adev: amdgpu_device pointer 716 * @value: true redirects VM faults to the default page 717 */ 718 static void gmc_v8_0_set_fault_enable_default(struct amdgpu_device *adev, 719 bool value) 720 { 721 u32 tmp; 722 723 tmp = RREG32(mmVM_CONTEXT1_CNTL); 724 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, 725 RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, value); 726 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, 727 DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, value); 728 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, 729 PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, value); 730 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, 731 VALID_PROTECTION_FAULT_ENABLE_DEFAULT, value); 732 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, 733 READ_PROTECTION_FAULT_ENABLE_DEFAULT, value); 734 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, 735 WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, value); 736 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, 737 EXECUTE_PROTECTION_FAULT_ENABLE_DEFAULT, value); 738 WREG32(mmVM_CONTEXT1_CNTL, tmp); 739 } 740 741 /** 742 * gmc_v8_0_set_prt - set PRT VM fault 743 * 744 * @adev: amdgpu_device pointer 745 * @enable: enable/disable VM fault handling for PRT 746 */ 747 static void gmc_v8_0_set_prt(struct amdgpu_device *adev, bool enable) 748 { 749 u32 tmp; 750 751 if (enable && !adev->gmc.prt_warning) { 752 dev_warn(adev->dev, "Disabling VM faults because of PRT request!\n"); 753 adev->gmc.prt_warning = true; 754 } 755 756 tmp = RREG32(mmVM_PRT_CNTL); 757 tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL, 758 CB_DISABLE_READ_FAULT_ON_UNMAPPED_ACCESS, enable); 759 tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL, 760 CB_DISABLE_WRITE_FAULT_ON_UNMAPPED_ACCESS, enable); 761 tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL, 762 TC_DISABLE_READ_FAULT_ON_UNMAPPED_ACCESS, enable); 763 tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL, 764 TC_DISABLE_WRITE_FAULT_ON_UNMAPPED_ACCESS, enable); 765 tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL, 766 L2_CACHE_STORE_INVALID_ENTRIES, enable); 767 tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL, 768 L1_TLB_STORE_INVALID_ENTRIES, enable); 769 tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL, 770 MASK_PDE0_FAULT, enable); 771 WREG32(mmVM_PRT_CNTL, tmp); 772 773 if (enable) { 774 uint32_t low = AMDGPU_VA_RESERVED_SIZE >> AMDGPU_GPU_PAGE_SHIFT; 775 uint32_t high = adev->vm_manager.max_pfn - 776 (AMDGPU_VA_RESERVED_SIZE >> AMDGPU_GPU_PAGE_SHIFT); 777 778 WREG32(mmVM_PRT_APERTURE0_LOW_ADDR, low); 779 WREG32(mmVM_PRT_APERTURE1_LOW_ADDR, low); 780 WREG32(mmVM_PRT_APERTURE2_LOW_ADDR, low); 781 WREG32(mmVM_PRT_APERTURE3_LOW_ADDR, low); 782 WREG32(mmVM_PRT_APERTURE0_HIGH_ADDR, high); 783 WREG32(mmVM_PRT_APERTURE1_HIGH_ADDR, high); 784 WREG32(mmVM_PRT_APERTURE2_HIGH_ADDR, high); 785 WREG32(mmVM_PRT_APERTURE3_HIGH_ADDR, high); 786 } else { 787 WREG32(mmVM_PRT_APERTURE0_LOW_ADDR, 0xfffffff); 788 WREG32(mmVM_PRT_APERTURE1_LOW_ADDR, 0xfffffff); 789 WREG32(mmVM_PRT_APERTURE2_LOW_ADDR, 0xfffffff); 790 WREG32(mmVM_PRT_APERTURE3_LOW_ADDR, 0xfffffff); 791 WREG32(mmVM_PRT_APERTURE0_HIGH_ADDR, 0x0); 792 WREG32(mmVM_PRT_APERTURE1_HIGH_ADDR, 0x0); 793 WREG32(mmVM_PRT_APERTURE2_HIGH_ADDR, 0x0); 794 WREG32(mmVM_PRT_APERTURE3_HIGH_ADDR, 0x0); 795 } 796 } 797 798 /** 799 * gmc_v8_0_gart_enable - gart enable 800 * 801 * @adev: amdgpu_device pointer 802 * 803 * This sets up the TLBs, programs the page tables for VMID0, 804 * sets up the hw for VMIDs 1-15 which are allocated on 805 * demand, and sets up the global locations for the LDS, GDS, 806 * and GPUVM for FSA64 clients (VI). 807 * Returns 0 for success, errors for failure. 808 */ 809 static int gmc_v8_0_gart_enable(struct amdgpu_device *adev) 810 { 811 uint64_t table_addr; 812 int r, i; 813 u32 tmp, field; 814 815 if (adev->gart.bo == NULL) { 816 dev_err(adev->dev, "No VRAM object for PCIE GART.\n"); 817 return -EINVAL; 818 } 819 r = amdgpu_gart_table_vram_pin(adev); 820 if (r) 821 return r; 822 823 table_addr = amdgpu_bo_gpu_offset(adev->gart.bo); 824 825 /* Setup TLB control */ 826 tmp = RREG32(mmMC_VM_MX_L1_TLB_CNTL); 827 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 1); 828 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_FRAGMENT_PROCESSING, 1); 829 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, SYSTEM_ACCESS_MODE, 3); 830 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_ADVANCED_DRIVER_MODEL, 1); 831 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, SYSTEM_APERTURE_UNMAPPED_ACCESS, 0); 832 WREG32(mmMC_VM_MX_L1_TLB_CNTL, tmp); 833 /* Setup L2 cache */ 834 tmp = RREG32(mmVM_L2_CNTL); 835 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_CACHE, 1); 836 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_FRAGMENT_PROCESSING, 1); 837 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE, 1); 838 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_PDE0_CACHE_LRU_UPDATE_BY_WRITE, 1); 839 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, EFFECTIVE_L2_QUEUE_SIZE, 7); 840 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, CONTEXT1_IDENTITY_ACCESS_MODE, 1); 841 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_DEFAULT_PAGE_OUT_TO_SYSTEM_MEMORY, 1); 842 WREG32(mmVM_L2_CNTL, tmp); 843 tmp = RREG32(mmVM_L2_CNTL2); 844 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL2, INVALIDATE_ALL_L1_TLBS, 1); 845 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL2, INVALIDATE_L2_CACHE, 1); 846 WREG32(mmVM_L2_CNTL2, tmp); 847 848 field = adev->vm_manager.fragment_size; 849 tmp = RREG32(mmVM_L2_CNTL3); 850 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, L2_CACHE_BIGK_ASSOCIATIVITY, 1); 851 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, BANK_SELECT, field); 852 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, L2_CACHE_BIGK_FRAGMENT_SIZE, field); 853 WREG32(mmVM_L2_CNTL3, tmp); 854 /* XXX: set to enable PTE/PDE in system memory */ 855 tmp = RREG32(mmVM_L2_CNTL4); 856 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT0_PDE_REQUEST_PHYSICAL, 0); 857 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT0_PDE_REQUEST_SHARED, 0); 858 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT0_PDE_REQUEST_SNOOP, 0); 859 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT0_PTE_REQUEST_PHYSICAL, 0); 860 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT0_PTE_REQUEST_SHARED, 0); 861 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT0_PTE_REQUEST_SNOOP, 0); 862 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT1_PDE_REQUEST_PHYSICAL, 0); 863 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT1_PDE_REQUEST_SHARED, 0); 864 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT1_PDE_REQUEST_SNOOP, 0); 865 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT1_PTE_REQUEST_PHYSICAL, 0); 866 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT1_PTE_REQUEST_SHARED, 0); 867 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL4, VMC_TAP_CONTEXT1_PTE_REQUEST_SNOOP, 0); 868 WREG32(mmVM_L2_CNTL4, tmp); 869 /* setup context0 */ 870 WREG32(mmVM_CONTEXT0_PAGE_TABLE_START_ADDR, adev->gmc.gart_start >> 12); 871 WREG32(mmVM_CONTEXT0_PAGE_TABLE_END_ADDR, adev->gmc.gart_end >> 12); 872 WREG32(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR, table_addr >> 12); 873 WREG32(mmVM_CONTEXT0_PROTECTION_FAULT_DEFAULT_ADDR, 874 (u32)(adev->dummy_page_addr >> 12)); 875 WREG32(mmVM_CONTEXT0_CNTL2, 0); 876 tmp = RREG32(mmVM_CONTEXT0_CNTL); 877 tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, ENABLE_CONTEXT, 1); 878 tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, PAGE_TABLE_DEPTH, 0); 879 tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1); 880 WREG32(mmVM_CONTEXT0_CNTL, tmp); 881 882 WREG32(mmVM_L2_CONTEXT1_IDENTITY_APERTURE_LOW_ADDR, 0); 883 WREG32(mmVM_L2_CONTEXT1_IDENTITY_APERTURE_HIGH_ADDR, 0); 884 WREG32(mmVM_L2_CONTEXT_IDENTITY_PHYSICAL_OFFSET, 0); 885 886 /* empty context1-15 */ 887 /* FIXME start with 4G, once using 2 level pt switch to full 888 * vm size space 889 */ 890 /* set vm size, must be a multiple of 4 */ 891 WREG32(mmVM_CONTEXT1_PAGE_TABLE_START_ADDR, 0); 892 WREG32(mmVM_CONTEXT1_PAGE_TABLE_END_ADDR, adev->vm_manager.max_pfn - 1); 893 for (i = 1; i < 16; i++) { 894 if (i < 8) 895 WREG32(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR + i, 896 table_addr >> 12); 897 else 898 WREG32(mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + i - 8, 899 table_addr >> 12); 900 } 901 902 /* enable context1-15 */ 903 WREG32(mmVM_CONTEXT1_PROTECTION_FAULT_DEFAULT_ADDR, 904 (u32)(adev->dummy_page_addr >> 12)); 905 WREG32(mmVM_CONTEXT1_CNTL2, 4); 906 tmp = RREG32(mmVM_CONTEXT1_CNTL); 907 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, ENABLE_CONTEXT, 1); 908 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, PAGE_TABLE_DEPTH, 1); 909 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1); 910 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1); 911 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, 1); 912 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, VALID_PROTECTION_FAULT_ENABLE_DEFAULT, 1); 913 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, READ_PROTECTION_FAULT_ENABLE_DEFAULT, 1); 914 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, 1); 915 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, EXECUTE_PROTECTION_FAULT_ENABLE_DEFAULT, 1); 916 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, PAGE_TABLE_BLOCK_SIZE, 917 adev->vm_manager.block_size - 9); 918 WREG32(mmVM_CONTEXT1_CNTL, tmp); 919 if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_ALWAYS) 920 gmc_v8_0_set_fault_enable_default(adev, false); 921 else 922 gmc_v8_0_set_fault_enable_default(adev, true); 923 924 gmc_v8_0_flush_gpu_tlb(adev, 0, 0); 925 DRM_INFO("PCIE GART of %uM enabled (table at 0x%016llX).\n", 926 (unsigned)(adev->gmc.gart_size >> 20), 927 (unsigned long long)table_addr); 928 adev->gart.ready = true; 929 return 0; 930 } 931 932 static int gmc_v8_0_gart_init(struct amdgpu_device *adev) 933 { 934 int r; 935 936 if (adev->gart.bo) { 937 WARN(1, "R600 PCIE GART already initialized\n"); 938 return 0; 939 } 940 /* Initialize common gart structure */ 941 r = amdgpu_gart_init(adev); 942 if (r) 943 return r; 944 adev->gart.table_size = adev->gart.num_gpu_pages * 8; 945 adev->gart.gart_pte_flags = AMDGPU_PTE_EXECUTABLE; 946 return amdgpu_gart_table_vram_alloc(adev); 947 } 948 949 /** 950 * gmc_v8_0_gart_disable - gart disable 951 * 952 * @adev: amdgpu_device pointer 953 * 954 * This disables all VM page table (VI). 955 */ 956 static void gmc_v8_0_gart_disable(struct amdgpu_device *adev) 957 { 958 u32 tmp; 959 960 /* Disable all tables */ 961 WREG32(mmVM_CONTEXT0_CNTL, 0); 962 WREG32(mmVM_CONTEXT1_CNTL, 0); 963 /* Setup TLB control */ 964 tmp = RREG32(mmMC_VM_MX_L1_TLB_CNTL); 965 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 0); 966 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_FRAGMENT_PROCESSING, 0); 967 tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_ADVANCED_DRIVER_MODEL, 0); 968 WREG32(mmMC_VM_MX_L1_TLB_CNTL, tmp); 969 /* Setup L2 cache */ 970 tmp = RREG32(mmVM_L2_CNTL); 971 tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_CACHE, 0); 972 WREG32(mmVM_L2_CNTL, tmp); 973 WREG32(mmVM_L2_CNTL2, 0); 974 amdgpu_gart_table_vram_unpin(adev); 975 } 976 977 /** 978 * gmc_v8_0_vm_decode_fault - print human readable fault info 979 * 980 * @adev: amdgpu_device pointer 981 * @status: VM_CONTEXT1_PROTECTION_FAULT_STATUS register value 982 * @addr: VM_CONTEXT1_PROTECTION_FAULT_ADDR register value 983 * 984 * Print human readable fault information (VI). 985 */ 986 static void gmc_v8_0_vm_decode_fault(struct amdgpu_device *adev, u32 status, 987 u32 addr, u32 mc_client, unsigned pasid) 988 { 989 u32 vmid = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS, VMID); 990 u32 protections = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS, 991 PROTECTIONS); 992 char block[5] = { mc_client >> 24, (mc_client >> 16) & 0xff, 993 (mc_client >> 8) & 0xff, mc_client & 0xff, 0 }; 994 u32 mc_id; 995 996 mc_id = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS, 997 MEMORY_CLIENT_ID); 998 999 dev_err(adev->dev, "VM fault (0x%02x, vmid %d, pasid %d) at page %u, %s from '%s' (0x%08x) (%d)\n", 1000 protections, vmid, pasid, addr, 1001 REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS, 1002 MEMORY_CLIENT_RW) ? 1003 "write" : "read", block, mc_client, mc_id); 1004 } 1005 1006 static int gmc_v8_0_convert_vram_type(int mc_seq_vram_type) 1007 { 1008 switch (mc_seq_vram_type) { 1009 case MC_SEQ_MISC0__MT__GDDR1: 1010 return AMDGPU_VRAM_TYPE_GDDR1; 1011 case MC_SEQ_MISC0__MT__DDR2: 1012 return AMDGPU_VRAM_TYPE_DDR2; 1013 case MC_SEQ_MISC0__MT__GDDR3: 1014 return AMDGPU_VRAM_TYPE_GDDR3; 1015 case MC_SEQ_MISC0__MT__GDDR4: 1016 return AMDGPU_VRAM_TYPE_GDDR4; 1017 case MC_SEQ_MISC0__MT__GDDR5: 1018 return AMDGPU_VRAM_TYPE_GDDR5; 1019 case MC_SEQ_MISC0__MT__HBM: 1020 return AMDGPU_VRAM_TYPE_HBM; 1021 case MC_SEQ_MISC0__MT__DDR3: 1022 return AMDGPU_VRAM_TYPE_DDR3; 1023 default: 1024 return AMDGPU_VRAM_TYPE_UNKNOWN; 1025 } 1026 } 1027 1028 static int gmc_v8_0_early_init(void *handle) 1029 { 1030 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1031 1032 gmc_v8_0_set_gmc_funcs(adev); 1033 gmc_v8_0_set_irq_funcs(adev); 1034 1035 adev->gmc.shared_aperture_start = 0x2000000000000000ULL; 1036 adev->gmc.shared_aperture_end = 1037 adev->gmc.shared_aperture_start + (4ULL << 30) - 1; 1038 adev->gmc.private_aperture_start = 1039 adev->gmc.shared_aperture_end + 1; 1040 adev->gmc.private_aperture_end = 1041 adev->gmc.private_aperture_start + (4ULL << 30) - 1; 1042 1043 return 0; 1044 } 1045 1046 static int gmc_v8_0_late_init(void *handle) 1047 { 1048 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1049 1050 amdgpu_bo_late_init(adev); 1051 1052 if (amdgpu_vm_fault_stop != AMDGPU_VM_FAULT_STOP_ALWAYS) 1053 return amdgpu_irq_get(adev, &adev->gmc.vm_fault, 0); 1054 else 1055 return 0; 1056 } 1057 1058 static unsigned gmc_v8_0_get_vbios_fb_size(struct amdgpu_device *adev) 1059 { 1060 u32 d1vga_control = RREG32(mmD1VGA_CONTROL); 1061 unsigned size; 1062 1063 if (REG_GET_FIELD(d1vga_control, D1VGA_CONTROL, D1VGA_MODE_ENABLE)) { 1064 size = 9 * 1024 * 1024; /* reserve 8MB for vga emulator and 1 MB for FB */ 1065 } else { 1066 u32 viewport = RREG32(mmVIEWPORT_SIZE); 1067 size = (REG_GET_FIELD(viewport, VIEWPORT_SIZE, VIEWPORT_HEIGHT) * 1068 REG_GET_FIELD(viewport, VIEWPORT_SIZE, VIEWPORT_WIDTH) * 1069 4); 1070 } 1071 /* return 0 if the pre-OS buffer uses up most of vram */ 1072 if ((adev->gmc.real_vram_size - size) < (8 * 1024 * 1024)) 1073 return 0; 1074 return size; 1075 } 1076 1077 #define mmMC_SEQ_MISC0_FIJI 0xA71 1078 1079 static int gmc_v8_0_sw_init(void *handle) 1080 { 1081 int r; 1082 int dma_bits; 1083 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1084 1085 if (adev->flags & AMD_IS_APU) { 1086 adev->gmc.vram_type = AMDGPU_VRAM_TYPE_UNKNOWN; 1087 } else { 1088 u32 tmp; 1089 1090 if ((adev->asic_type == CHIP_FIJI) || 1091 (adev->asic_type == CHIP_VEGAM)) 1092 tmp = RREG32(mmMC_SEQ_MISC0_FIJI); 1093 else 1094 tmp = RREG32(mmMC_SEQ_MISC0); 1095 tmp &= MC_SEQ_MISC0__MT__MASK; 1096 adev->gmc.vram_type = gmc_v8_0_convert_vram_type(tmp); 1097 } 1098 1099 r = amdgpu_irq_add_id(adev, AMDGPU_IRQ_CLIENTID_LEGACY, VISLANDS30_IV_SRCID_GFX_PAGE_INV_FAULT, &adev->gmc.vm_fault); 1100 if (r) 1101 return r; 1102 1103 r = amdgpu_irq_add_id(adev, AMDGPU_IRQ_CLIENTID_LEGACY, VISLANDS30_IV_SRCID_GFX_MEM_PROT_FAULT, &adev->gmc.vm_fault); 1104 if (r) 1105 return r; 1106 1107 /* Adjust VM size here. 1108 * Currently set to 4GB ((1 << 20) 4k pages). 1109 * Max GPUVM size for cayman and SI is 40 bits. 1110 */ 1111 amdgpu_vm_adjust_size(adev, 64, 9, 1, 40); 1112 1113 /* Set the internal MC address mask 1114 * This is the max address of the GPU's 1115 * internal address space. 1116 */ 1117 adev->gmc.mc_mask = 0xffffffffffULL; /* 40 bit MC */ 1118 1119 /* set DMA mask + need_dma32 flags. 1120 * PCIE - can handle 40-bits. 1121 * IGP - can handle 40-bits 1122 * PCI - dma32 for legacy pci gart, 40 bits on newer asics 1123 */ 1124 adev->need_dma32 = false; 1125 dma_bits = adev->need_dma32 ? 32 : 40; 1126 r = pci_set_dma_mask(adev->pdev, DMA_BIT_MASK(dma_bits)); 1127 if (r) { 1128 adev->need_dma32 = true; 1129 dma_bits = 32; 1130 pr_warn("amdgpu: No suitable DMA available\n"); 1131 } 1132 r = pci_set_consistent_dma_mask(adev->pdev, DMA_BIT_MASK(dma_bits)); 1133 if (r) { 1134 pci_set_consistent_dma_mask(adev->pdev, DMA_BIT_MASK(32)); 1135 pr_warn("amdgpu: No coherent DMA available\n"); 1136 } 1137 adev->need_swiotlb = drm_need_swiotlb(dma_bits); 1138 1139 r = gmc_v8_0_init_microcode(adev); 1140 if (r) { 1141 DRM_ERROR("Failed to load mc firmware!\n"); 1142 return r; 1143 } 1144 1145 r = gmc_v8_0_mc_init(adev); 1146 if (r) 1147 return r; 1148 1149 adev->gmc.stolen_size = gmc_v8_0_get_vbios_fb_size(adev); 1150 1151 /* Memory manager */ 1152 r = amdgpu_bo_init(adev); 1153 if (r) 1154 return r; 1155 1156 r = gmc_v8_0_gart_init(adev); 1157 if (r) 1158 return r; 1159 1160 /* 1161 * number of VMs 1162 * VMID 0 is reserved for System 1163 * amdgpu graphics/compute will use VMIDs 1-7 1164 * amdkfd will use VMIDs 8-15 1165 */ 1166 adev->vm_manager.id_mgr[0].num_ids = AMDGPU_NUM_OF_VMIDS; 1167 amdgpu_vm_manager_init(adev); 1168 1169 /* base offset of vram pages */ 1170 if (adev->flags & AMD_IS_APU) { 1171 u64 tmp = RREG32(mmMC_VM_FB_OFFSET); 1172 1173 tmp <<= 22; 1174 adev->vm_manager.vram_base_offset = tmp; 1175 } else { 1176 adev->vm_manager.vram_base_offset = 0; 1177 } 1178 1179 adev->gmc.vm_fault_info = kmalloc(sizeof(struct kfd_vm_fault_info), 1180 GFP_KERNEL); 1181 if (!adev->gmc.vm_fault_info) 1182 return -ENOMEM; 1183 atomic_set(&adev->gmc.vm_fault_info_updated, 0); 1184 1185 return 0; 1186 } 1187 1188 static int gmc_v8_0_sw_fini(void *handle) 1189 { 1190 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1191 1192 amdgpu_gem_force_release(adev); 1193 amdgpu_vm_manager_fini(adev); 1194 kfree(adev->gmc.vm_fault_info); 1195 amdgpu_gart_table_vram_free(adev); 1196 amdgpu_bo_fini(adev); 1197 amdgpu_gart_fini(adev); 1198 release_firmware(adev->gmc.fw); 1199 adev->gmc.fw = NULL; 1200 1201 return 0; 1202 } 1203 1204 static int gmc_v8_0_hw_init(void *handle) 1205 { 1206 int r; 1207 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1208 1209 gmc_v8_0_init_golden_registers(adev); 1210 1211 gmc_v8_0_mc_program(adev); 1212 1213 if (adev->asic_type == CHIP_TONGA) { 1214 r = gmc_v8_0_tonga_mc_load_microcode(adev); 1215 if (r) { 1216 DRM_ERROR("Failed to load MC firmware!\n"); 1217 return r; 1218 } 1219 } else if (adev->asic_type == CHIP_POLARIS11 || 1220 adev->asic_type == CHIP_POLARIS10 || 1221 adev->asic_type == CHIP_POLARIS12) { 1222 r = gmc_v8_0_polaris_mc_load_microcode(adev); 1223 if (r) { 1224 DRM_ERROR("Failed to load MC firmware!\n"); 1225 return r; 1226 } 1227 } 1228 1229 r = gmc_v8_0_gart_enable(adev); 1230 if (r) 1231 return r; 1232 1233 return r; 1234 } 1235 1236 static int gmc_v8_0_hw_fini(void *handle) 1237 { 1238 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1239 1240 amdgpu_irq_put(adev, &adev->gmc.vm_fault, 0); 1241 gmc_v8_0_gart_disable(adev); 1242 1243 return 0; 1244 } 1245 1246 static int gmc_v8_0_suspend(void *handle) 1247 { 1248 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1249 1250 gmc_v8_0_hw_fini(adev); 1251 1252 return 0; 1253 } 1254 1255 static int gmc_v8_0_resume(void *handle) 1256 { 1257 int r; 1258 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1259 1260 r = gmc_v8_0_hw_init(adev); 1261 if (r) 1262 return r; 1263 1264 amdgpu_vmid_reset_all(adev); 1265 1266 return 0; 1267 } 1268 1269 static bool gmc_v8_0_is_idle(void *handle) 1270 { 1271 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1272 u32 tmp = RREG32(mmSRBM_STATUS); 1273 1274 if (tmp & (SRBM_STATUS__MCB_BUSY_MASK | SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK | 1275 SRBM_STATUS__MCC_BUSY_MASK | SRBM_STATUS__MCD_BUSY_MASK | SRBM_STATUS__VMC_BUSY_MASK)) 1276 return false; 1277 1278 return true; 1279 } 1280 1281 static int gmc_v8_0_wait_for_idle(void *handle) 1282 { 1283 unsigned i; 1284 u32 tmp; 1285 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1286 1287 for (i = 0; i < adev->usec_timeout; i++) { 1288 /* read MC_STATUS */ 1289 tmp = RREG32(mmSRBM_STATUS) & (SRBM_STATUS__MCB_BUSY_MASK | 1290 SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK | 1291 SRBM_STATUS__MCC_BUSY_MASK | 1292 SRBM_STATUS__MCD_BUSY_MASK | 1293 SRBM_STATUS__VMC_BUSY_MASK | 1294 SRBM_STATUS__VMC1_BUSY_MASK); 1295 if (!tmp) 1296 return 0; 1297 udelay(1); 1298 } 1299 return -ETIMEDOUT; 1300 1301 } 1302 1303 static bool gmc_v8_0_check_soft_reset(void *handle) 1304 { 1305 u32 srbm_soft_reset = 0; 1306 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1307 u32 tmp = RREG32(mmSRBM_STATUS); 1308 1309 if (tmp & SRBM_STATUS__VMC_BUSY_MASK) 1310 srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset, 1311 SRBM_SOFT_RESET, SOFT_RESET_VMC, 1); 1312 1313 if (tmp & (SRBM_STATUS__MCB_BUSY_MASK | SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK | 1314 SRBM_STATUS__MCC_BUSY_MASK | SRBM_STATUS__MCD_BUSY_MASK)) { 1315 if (!(adev->flags & AMD_IS_APU)) 1316 srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset, 1317 SRBM_SOFT_RESET, SOFT_RESET_MC, 1); 1318 } 1319 if (srbm_soft_reset) { 1320 adev->gmc.srbm_soft_reset = srbm_soft_reset; 1321 return true; 1322 } else { 1323 adev->gmc.srbm_soft_reset = 0; 1324 return false; 1325 } 1326 } 1327 1328 static int gmc_v8_0_pre_soft_reset(void *handle) 1329 { 1330 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1331 1332 if (!adev->gmc.srbm_soft_reset) 1333 return 0; 1334 1335 gmc_v8_0_mc_stop(adev); 1336 if (gmc_v8_0_wait_for_idle(adev)) { 1337 dev_warn(adev->dev, "Wait for GMC idle timed out !\n"); 1338 } 1339 1340 return 0; 1341 } 1342 1343 static int gmc_v8_0_soft_reset(void *handle) 1344 { 1345 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1346 u32 srbm_soft_reset; 1347 1348 if (!adev->gmc.srbm_soft_reset) 1349 return 0; 1350 srbm_soft_reset = adev->gmc.srbm_soft_reset; 1351 1352 if (srbm_soft_reset) { 1353 u32 tmp; 1354 1355 tmp = RREG32(mmSRBM_SOFT_RESET); 1356 tmp |= srbm_soft_reset; 1357 dev_info(adev->dev, "SRBM_SOFT_RESET=0x%08X\n", tmp); 1358 WREG32(mmSRBM_SOFT_RESET, tmp); 1359 tmp = RREG32(mmSRBM_SOFT_RESET); 1360 1361 udelay(50); 1362 1363 tmp &= ~srbm_soft_reset; 1364 WREG32(mmSRBM_SOFT_RESET, tmp); 1365 tmp = RREG32(mmSRBM_SOFT_RESET); 1366 1367 /* Wait a little for things to settle down */ 1368 udelay(50); 1369 } 1370 1371 return 0; 1372 } 1373 1374 static int gmc_v8_0_post_soft_reset(void *handle) 1375 { 1376 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1377 1378 if (!adev->gmc.srbm_soft_reset) 1379 return 0; 1380 1381 gmc_v8_0_mc_resume(adev); 1382 return 0; 1383 } 1384 1385 static int gmc_v8_0_vm_fault_interrupt_state(struct amdgpu_device *adev, 1386 struct amdgpu_irq_src *src, 1387 unsigned type, 1388 enum amdgpu_interrupt_state state) 1389 { 1390 u32 tmp; 1391 u32 bits = (VM_CONTEXT1_CNTL__RANGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | 1392 VM_CONTEXT1_CNTL__DUMMY_PAGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | 1393 VM_CONTEXT1_CNTL__PDE0_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | 1394 VM_CONTEXT1_CNTL__VALID_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | 1395 VM_CONTEXT1_CNTL__READ_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | 1396 VM_CONTEXT1_CNTL__WRITE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK | 1397 VM_CONTEXT1_CNTL__EXECUTE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK); 1398 1399 switch (state) { 1400 case AMDGPU_IRQ_STATE_DISABLE: 1401 /* system context */ 1402 tmp = RREG32(mmVM_CONTEXT0_CNTL); 1403 tmp &= ~bits; 1404 WREG32(mmVM_CONTEXT0_CNTL, tmp); 1405 /* VMs */ 1406 tmp = RREG32(mmVM_CONTEXT1_CNTL); 1407 tmp &= ~bits; 1408 WREG32(mmVM_CONTEXT1_CNTL, tmp); 1409 break; 1410 case AMDGPU_IRQ_STATE_ENABLE: 1411 /* system context */ 1412 tmp = RREG32(mmVM_CONTEXT0_CNTL); 1413 tmp |= bits; 1414 WREG32(mmVM_CONTEXT0_CNTL, tmp); 1415 /* VMs */ 1416 tmp = RREG32(mmVM_CONTEXT1_CNTL); 1417 tmp |= bits; 1418 WREG32(mmVM_CONTEXT1_CNTL, tmp); 1419 break; 1420 default: 1421 break; 1422 } 1423 1424 return 0; 1425 } 1426 1427 static int gmc_v8_0_process_interrupt(struct amdgpu_device *adev, 1428 struct amdgpu_irq_src *source, 1429 struct amdgpu_iv_entry *entry) 1430 { 1431 u32 addr, status, mc_client, vmid; 1432 1433 if (amdgpu_sriov_vf(adev)) { 1434 dev_err(adev->dev, "GPU fault detected: %d 0x%08x\n", 1435 entry->src_id, entry->src_data[0]); 1436 dev_err(adev->dev, " Can't decode VM fault info here on SRIOV VF\n"); 1437 return 0; 1438 } 1439 1440 addr = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_ADDR); 1441 status = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_STATUS); 1442 mc_client = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_MCCLIENT); 1443 /* reset addr and status */ 1444 WREG32_P(mmVM_CONTEXT1_CNTL2, 1, ~1); 1445 1446 if (!addr && !status) 1447 return 0; 1448 1449 if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_FIRST) 1450 gmc_v8_0_set_fault_enable_default(adev, false); 1451 1452 if (printk_ratelimit()) { 1453 struct amdgpu_task_info task_info; 1454 1455 memset(&task_info, 0, sizeof(struct amdgpu_task_info)); 1456 amdgpu_vm_get_task_info(adev, entry->pasid, &task_info); 1457 1458 dev_err(adev->dev, "GPU fault detected: %d 0x%08x for process %s pid %d thread %s pid %d\n", 1459 entry->src_id, entry->src_data[0], task_info.process_name, 1460 task_info.tgid, task_info.task_name, task_info.pid); 1461 dev_err(adev->dev, " VM_CONTEXT1_PROTECTION_FAULT_ADDR 0x%08X\n", 1462 addr); 1463 dev_err(adev->dev, " VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x%08X\n", 1464 status); 1465 gmc_v8_0_vm_decode_fault(adev, status, addr, mc_client, 1466 entry->pasid); 1467 } 1468 1469 vmid = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS, 1470 VMID); 1471 if (amdgpu_amdkfd_is_kfd_vmid(adev, vmid) 1472 && !atomic_read(&adev->gmc.vm_fault_info_updated)) { 1473 struct kfd_vm_fault_info *info = adev->gmc.vm_fault_info; 1474 u32 protections = REG_GET_FIELD(status, 1475 VM_CONTEXT1_PROTECTION_FAULT_STATUS, 1476 PROTECTIONS); 1477 1478 info->vmid = vmid; 1479 info->mc_id = REG_GET_FIELD(status, 1480 VM_CONTEXT1_PROTECTION_FAULT_STATUS, 1481 MEMORY_CLIENT_ID); 1482 info->status = status; 1483 info->page_addr = addr; 1484 info->prot_valid = protections & 0x7 ? true : false; 1485 info->prot_read = protections & 0x8 ? true : false; 1486 info->prot_write = protections & 0x10 ? true : false; 1487 info->prot_exec = protections & 0x20 ? true : false; 1488 mb(); 1489 atomic_set(&adev->gmc.vm_fault_info_updated, 1); 1490 } 1491 1492 return 0; 1493 } 1494 1495 static void fiji_update_mc_medium_grain_clock_gating(struct amdgpu_device *adev, 1496 bool enable) 1497 { 1498 uint32_t data; 1499 1500 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_MC_MGCG)) { 1501 data = RREG32(mmMC_HUB_MISC_HUB_CG); 1502 data |= MC_HUB_MISC_HUB_CG__ENABLE_MASK; 1503 WREG32(mmMC_HUB_MISC_HUB_CG, data); 1504 1505 data = RREG32(mmMC_HUB_MISC_SIP_CG); 1506 data |= MC_HUB_MISC_SIP_CG__ENABLE_MASK; 1507 WREG32(mmMC_HUB_MISC_SIP_CG, data); 1508 1509 data = RREG32(mmMC_HUB_MISC_VM_CG); 1510 data |= MC_HUB_MISC_VM_CG__ENABLE_MASK; 1511 WREG32(mmMC_HUB_MISC_VM_CG, data); 1512 1513 data = RREG32(mmMC_XPB_CLK_GAT); 1514 data |= MC_XPB_CLK_GAT__ENABLE_MASK; 1515 WREG32(mmMC_XPB_CLK_GAT, data); 1516 1517 data = RREG32(mmATC_MISC_CG); 1518 data |= ATC_MISC_CG__ENABLE_MASK; 1519 WREG32(mmATC_MISC_CG, data); 1520 1521 data = RREG32(mmMC_CITF_MISC_WR_CG); 1522 data |= MC_CITF_MISC_WR_CG__ENABLE_MASK; 1523 WREG32(mmMC_CITF_MISC_WR_CG, data); 1524 1525 data = RREG32(mmMC_CITF_MISC_RD_CG); 1526 data |= MC_CITF_MISC_RD_CG__ENABLE_MASK; 1527 WREG32(mmMC_CITF_MISC_RD_CG, data); 1528 1529 data = RREG32(mmMC_CITF_MISC_VM_CG); 1530 data |= MC_CITF_MISC_VM_CG__ENABLE_MASK; 1531 WREG32(mmMC_CITF_MISC_VM_CG, data); 1532 1533 data = RREG32(mmVM_L2_CG); 1534 data |= VM_L2_CG__ENABLE_MASK; 1535 WREG32(mmVM_L2_CG, data); 1536 } else { 1537 data = RREG32(mmMC_HUB_MISC_HUB_CG); 1538 data &= ~MC_HUB_MISC_HUB_CG__ENABLE_MASK; 1539 WREG32(mmMC_HUB_MISC_HUB_CG, data); 1540 1541 data = RREG32(mmMC_HUB_MISC_SIP_CG); 1542 data &= ~MC_HUB_MISC_SIP_CG__ENABLE_MASK; 1543 WREG32(mmMC_HUB_MISC_SIP_CG, data); 1544 1545 data = RREG32(mmMC_HUB_MISC_VM_CG); 1546 data &= ~MC_HUB_MISC_VM_CG__ENABLE_MASK; 1547 WREG32(mmMC_HUB_MISC_VM_CG, data); 1548 1549 data = RREG32(mmMC_XPB_CLK_GAT); 1550 data &= ~MC_XPB_CLK_GAT__ENABLE_MASK; 1551 WREG32(mmMC_XPB_CLK_GAT, data); 1552 1553 data = RREG32(mmATC_MISC_CG); 1554 data &= ~ATC_MISC_CG__ENABLE_MASK; 1555 WREG32(mmATC_MISC_CG, data); 1556 1557 data = RREG32(mmMC_CITF_MISC_WR_CG); 1558 data &= ~MC_CITF_MISC_WR_CG__ENABLE_MASK; 1559 WREG32(mmMC_CITF_MISC_WR_CG, data); 1560 1561 data = RREG32(mmMC_CITF_MISC_RD_CG); 1562 data &= ~MC_CITF_MISC_RD_CG__ENABLE_MASK; 1563 WREG32(mmMC_CITF_MISC_RD_CG, data); 1564 1565 data = RREG32(mmMC_CITF_MISC_VM_CG); 1566 data &= ~MC_CITF_MISC_VM_CG__ENABLE_MASK; 1567 WREG32(mmMC_CITF_MISC_VM_CG, data); 1568 1569 data = RREG32(mmVM_L2_CG); 1570 data &= ~VM_L2_CG__ENABLE_MASK; 1571 WREG32(mmVM_L2_CG, data); 1572 } 1573 } 1574 1575 static void fiji_update_mc_light_sleep(struct amdgpu_device *adev, 1576 bool enable) 1577 { 1578 uint32_t data; 1579 1580 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_MC_LS)) { 1581 data = RREG32(mmMC_HUB_MISC_HUB_CG); 1582 data |= MC_HUB_MISC_HUB_CG__MEM_LS_ENABLE_MASK; 1583 WREG32(mmMC_HUB_MISC_HUB_CG, data); 1584 1585 data = RREG32(mmMC_HUB_MISC_SIP_CG); 1586 data |= MC_HUB_MISC_SIP_CG__MEM_LS_ENABLE_MASK; 1587 WREG32(mmMC_HUB_MISC_SIP_CG, data); 1588 1589 data = RREG32(mmMC_HUB_MISC_VM_CG); 1590 data |= MC_HUB_MISC_VM_CG__MEM_LS_ENABLE_MASK; 1591 WREG32(mmMC_HUB_MISC_VM_CG, data); 1592 1593 data = RREG32(mmMC_XPB_CLK_GAT); 1594 data |= MC_XPB_CLK_GAT__MEM_LS_ENABLE_MASK; 1595 WREG32(mmMC_XPB_CLK_GAT, data); 1596 1597 data = RREG32(mmATC_MISC_CG); 1598 data |= ATC_MISC_CG__MEM_LS_ENABLE_MASK; 1599 WREG32(mmATC_MISC_CG, data); 1600 1601 data = RREG32(mmMC_CITF_MISC_WR_CG); 1602 data |= MC_CITF_MISC_WR_CG__MEM_LS_ENABLE_MASK; 1603 WREG32(mmMC_CITF_MISC_WR_CG, data); 1604 1605 data = RREG32(mmMC_CITF_MISC_RD_CG); 1606 data |= MC_CITF_MISC_RD_CG__MEM_LS_ENABLE_MASK; 1607 WREG32(mmMC_CITF_MISC_RD_CG, data); 1608 1609 data = RREG32(mmMC_CITF_MISC_VM_CG); 1610 data |= MC_CITF_MISC_VM_CG__MEM_LS_ENABLE_MASK; 1611 WREG32(mmMC_CITF_MISC_VM_CG, data); 1612 1613 data = RREG32(mmVM_L2_CG); 1614 data |= VM_L2_CG__MEM_LS_ENABLE_MASK; 1615 WREG32(mmVM_L2_CG, data); 1616 } else { 1617 data = RREG32(mmMC_HUB_MISC_HUB_CG); 1618 data &= ~MC_HUB_MISC_HUB_CG__MEM_LS_ENABLE_MASK; 1619 WREG32(mmMC_HUB_MISC_HUB_CG, data); 1620 1621 data = RREG32(mmMC_HUB_MISC_SIP_CG); 1622 data &= ~MC_HUB_MISC_SIP_CG__MEM_LS_ENABLE_MASK; 1623 WREG32(mmMC_HUB_MISC_SIP_CG, data); 1624 1625 data = RREG32(mmMC_HUB_MISC_VM_CG); 1626 data &= ~MC_HUB_MISC_VM_CG__MEM_LS_ENABLE_MASK; 1627 WREG32(mmMC_HUB_MISC_VM_CG, data); 1628 1629 data = RREG32(mmMC_XPB_CLK_GAT); 1630 data &= ~MC_XPB_CLK_GAT__MEM_LS_ENABLE_MASK; 1631 WREG32(mmMC_XPB_CLK_GAT, data); 1632 1633 data = RREG32(mmATC_MISC_CG); 1634 data &= ~ATC_MISC_CG__MEM_LS_ENABLE_MASK; 1635 WREG32(mmATC_MISC_CG, data); 1636 1637 data = RREG32(mmMC_CITF_MISC_WR_CG); 1638 data &= ~MC_CITF_MISC_WR_CG__MEM_LS_ENABLE_MASK; 1639 WREG32(mmMC_CITF_MISC_WR_CG, data); 1640 1641 data = RREG32(mmMC_CITF_MISC_RD_CG); 1642 data &= ~MC_CITF_MISC_RD_CG__MEM_LS_ENABLE_MASK; 1643 WREG32(mmMC_CITF_MISC_RD_CG, data); 1644 1645 data = RREG32(mmMC_CITF_MISC_VM_CG); 1646 data &= ~MC_CITF_MISC_VM_CG__MEM_LS_ENABLE_MASK; 1647 WREG32(mmMC_CITF_MISC_VM_CG, data); 1648 1649 data = RREG32(mmVM_L2_CG); 1650 data &= ~VM_L2_CG__MEM_LS_ENABLE_MASK; 1651 WREG32(mmVM_L2_CG, data); 1652 } 1653 } 1654 1655 static int gmc_v8_0_set_clockgating_state(void *handle, 1656 enum amd_clockgating_state state) 1657 { 1658 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1659 1660 if (amdgpu_sriov_vf(adev)) 1661 return 0; 1662 1663 switch (adev->asic_type) { 1664 case CHIP_FIJI: 1665 fiji_update_mc_medium_grain_clock_gating(adev, 1666 state == AMD_CG_STATE_GATE); 1667 fiji_update_mc_light_sleep(adev, 1668 state == AMD_CG_STATE_GATE); 1669 break; 1670 default: 1671 break; 1672 } 1673 return 0; 1674 } 1675 1676 static int gmc_v8_0_set_powergating_state(void *handle, 1677 enum amd_powergating_state state) 1678 { 1679 return 0; 1680 } 1681 1682 static void gmc_v8_0_get_clockgating_state(void *handle, u32 *flags) 1683 { 1684 struct amdgpu_device *adev = (struct amdgpu_device *)handle; 1685 int data; 1686 1687 if (amdgpu_sriov_vf(adev)) 1688 *flags = 0; 1689 1690 /* AMD_CG_SUPPORT_MC_MGCG */ 1691 data = RREG32(mmMC_HUB_MISC_HUB_CG); 1692 if (data & MC_HUB_MISC_HUB_CG__ENABLE_MASK) 1693 *flags |= AMD_CG_SUPPORT_MC_MGCG; 1694 1695 /* AMD_CG_SUPPORT_MC_LS */ 1696 if (data & MC_HUB_MISC_HUB_CG__MEM_LS_ENABLE_MASK) 1697 *flags |= AMD_CG_SUPPORT_MC_LS; 1698 } 1699 1700 static const struct amd_ip_funcs gmc_v8_0_ip_funcs = { 1701 .name = "gmc_v8_0", 1702 .early_init = gmc_v8_0_early_init, 1703 .late_init = gmc_v8_0_late_init, 1704 .sw_init = gmc_v8_0_sw_init, 1705 .sw_fini = gmc_v8_0_sw_fini, 1706 .hw_init = gmc_v8_0_hw_init, 1707 .hw_fini = gmc_v8_0_hw_fini, 1708 .suspend = gmc_v8_0_suspend, 1709 .resume = gmc_v8_0_resume, 1710 .is_idle = gmc_v8_0_is_idle, 1711 .wait_for_idle = gmc_v8_0_wait_for_idle, 1712 .check_soft_reset = gmc_v8_0_check_soft_reset, 1713 .pre_soft_reset = gmc_v8_0_pre_soft_reset, 1714 .soft_reset = gmc_v8_0_soft_reset, 1715 .post_soft_reset = gmc_v8_0_post_soft_reset, 1716 .set_clockgating_state = gmc_v8_0_set_clockgating_state, 1717 .set_powergating_state = gmc_v8_0_set_powergating_state, 1718 .get_clockgating_state = gmc_v8_0_get_clockgating_state, 1719 }; 1720 1721 static const struct amdgpu_gmc_funcs gmc_v8_0_gmc_funcs = { 1722 .flush_gpu_tlb = gmc_v8_0_flush_gpu_tlb, 1723 .emit_flush_gpu_tlb = gmc_v8_0_emit_flush_gpu_tlb, 1724 .emit_pasid_mapping = gmc_v8_0_emit_pasid_mapping, 1725 .set_prt = gmc_v8_0_set_prt, 1726 .get_vm_pte_flags = gmc_v8_0_get_vm_pte_flags, 1727 .get_vm_pde = gmc_v8_0_get_vm_pde 1728 }; 1729 1730 static const struct amdgpu_irq_src_funcs gmc_v8_0_irq_funcs = { 1731 .set = gmc_v8_0_vm_fault_interrupt_state, 1732 .process = gmc_v8_0_process_interrupt, 1733 }; 1734 1735 static void gmc_v8_0_set_gmc_funcs(struct amdgpu_device *adev) 1736 { 1737 adev->gmc.gmc_funcs = &gmc_v8_0_gmc_funcs; 1738 } 1739 1740 static void gmc_v8_0_set_irq_funcs(struct amdgpu_device *adev) 1741 { 1742 adev->gmc.vm_fault.num_types = 1; 1743 adev->gmc.vm_fault.funcs = &gmc_v8_0_irq_funcs; 1744 } 1745 1746 const struct amdgpu_ip_block_version gmc_v8_0_ip_block = 1747 { 1748 .type = AMD_IP_BLOCK_TYPE_GMC, 1749 .major = 8, 1750 .minor = 0, 1751 .rev = 0, 1752 .funcs = &gmc_v8_0_ip_funcs, 1753 }; 1754 1755 const struct amdgpu_ip_block_version gmc_v8_1_ip_block = 1756 { 1757 .type = AMD_IP_BLOCK_TYPE_GMC, 1758 .major = 8, 1759 .minor = 1, 1760 .rev = 0, 1761 .funcs = &gmc_v8_0_ip_funcs, 1762 }; 1763 1764 const struct amdgpu_ip_block_version gmc_v8_5_ip_block = 1765 { 1766 .type = AMD_IP_BLOCK_TYPE_GMC, 1767 .major = 8, 1768 .minor = 5, 1769 .rev = 0, 1770 .funcs = &gmc_v8_0_ip_funcs, 1771 }; 1772