1 // SPDX-License-Identifier: GPL-2.0 2 3 /* 4 * Copyright 2016-2022 HabanaLabs, Ltd. 5 * All Rights Reserved. 6 */ 7 8 #include "habanalabs.h" 9 10 #include <linux/pci.h> 11 #include <linux/types.h> 12 13 static ssize_t clk_max_freq_mhz_show(struct device *dev, struct device_attribute *attr, char *buf) 14 { 15 struct hl_device *hdev = dev_get_drvdata(dev); 16 long value; 17 18 if (!hl_device_operational(hdev, NULL)) 19 return -ENODEV; 20 21 value = hl_fw_get_frequency(hdev, hdev->asic_prop.clk_pll_index, false); 22 if (value < 0) 23 return value; 24 25 hdev->asic_prop.max_freq_value = value; 26 27 return sprintf(buf, "%lu\n", (value / 1000 / 1000)); 28 } 29 30 static ssize_t clk_max_freq_mhz_store(struct device *dev, struct device_attribute *attr, 31 const char *buf, size_t count) 32 { 33 struct hl_device *hdev = dev_get_drvdata(dev); 34 int rc; 35 u64 value; 36 37 if (!hl_device_operational(hdev, NULL)) { 38 count = -ENODEV; 39 goto fail; 40 } 41 42 rc = kstrtoull(buf, 0, &value); 43 if (rc) { 44 count = -EINVAL; 45 goto fail; 46 } 47 48 hdev->asic_prop.max_freq_value = value * 1000 * 1000; 49 50 hl_fw_set_frequency(hdev, hdev->asic_prop.clk_pll_index, hdev->asic_prop.max_freq_value); 51 52 fail: 53 return count; 54 } 55 56 static ssize_t clk_cur_freq_mhz_show(struct device *dev, struct device_attribute *attr, char *buf) 57 { 58 struct hl_device *hdev = dev_get_drvdata(dev); 59 long value; 60 61 if (!hl_device_operational(hdev, NULL)) 62 return -ENODEV; 63 64 value = hl_fw_get_frequency(hdev, hdev->asic_prop.clk_pll_index, true); 65 if (value < 0) 66 return value; 67 68 return sprintf(buf, "%lu\n", (value / 1000 / 1000)); 69 } 70 71 static DEVICE_ATTR_RW(clk_max_freq_mhz); 72 static DEVICE_ATTR_RO(clk_cur_freq_mhz); 73 74 static struct attribute *hl_dev_clk_attrs[] = { 75 &dev_attr_clk_max_freq_mhz.attr, 76 &dev_attr_clk_cur_freq_mhz.attr, 77 NULL, 78 }; 79 80 static ssize_t vrm_ver_show(struct device *dev, struct device_attribute *attr, char *buf) 81 { 82 struct hl_device *hdev = dev_get_drvdata(dev); 83 struct cpucp_info *cpucp_info; 84 u32 infineon_second_stage_version; 85 u32 infineon_second_stage_first_instance; 86 u32 infineon_second_stage_second_instance; 87 u32 infineon_second_stage_third_instance; 88 u32 mask = 0xff; 89 90 cpucp_info = &hdev->asic_prop.cpucp_info; 91 92 infineon_second_stage_version = le32_to_cpu(cpucp_info->infineon_second_stage_version); 93 infineon_second_stage_first_instance = infineon_second_stage_version & mask; 94 infineon_second_stage_second_instance = 95 (infineon_second_stage_version >> 8) & mask; 96 infineon_second_stage_third_instance = 97 (infineon_second_stage_version >> 16) & mask; 98 99 if (cpucp_info->infineon_version && cpucp_info->infineon_second_stage_version) 100 return sprintf(buf, "%#04x %#04x:%#04x:%#04x\n", 101 le32_to_cpu(cpucp_info->infineon_version), 102 infineon_second_stage_first_instance, 103 infineon_second_stage_second_instance, 104 infineon_second_stage_third_instance); 105 else if (cpucp_info->infineon_second_stage_version) 106 return sprintf(buf, "%#04x:%#04x:%#04x\n", 107 infineon_second_stage_first_instance, 108 infineon_second_stage_second_instance, 109 infineon_second_stage_third_instance); 110 else if (cpucp_info->infineon_version) 111 return sprintf(buf, "%#04x\n", le32_to_cpu(cpucp_info->infineon_version)); 112 113 return 0; 114 } 115 116 static DEVICE_ATTR_RO(vrm_ver); 117 118 static struct attribute *hl_dev_vrm_attrs[] = { 119 &dev_attr_vrm_ver.attr, 120 NULL, 121 }; 122 123 static ssize_t uboot_ver_show(struct device *dev, struct device_attribute *attr, 124 char *buf) 125 { 126 struct hl_device *hdev = dev_get_drvdata(dev); 127 128 return sprintf(buf, "%s\n", hdev->asic_prop.uboot_ver); 129 } 130 131 static ssize_t armcp_kernel_ver_show(struct device *dev, 132 struct device_attribute *attr, char *buf) 133 { 134 struct hl_device *hdev = dev_get_drvdata(dev); 135 136 return sprintf(buf, "%s", hdev->asic_prop.cpucp_info.kernel_version); 137 } 138 139 static ssize_t armcp_ver_show(struct device *dev, struct device_attribute *attr, 140 char *buf) 141 { 142 struct hl_device *hdev = dev_get_drvdata(dev); 143 144 return sprintf(buf, "%s\n", hdev->asic_prop.cpucp_info.cpucp_version); 145 } 146 147 static ssize_t cpld_ver_show(struct device *dev, struct device_attribute *attr, 148 char *buf) 149 { 150 struct hl_device *hdev = dev_get_drvdata(dev); 151 152 return sprintf(buf, "0x%08x%08x\n", 153 le32_to_cpu(hdev->asic_prop.cpucp_info.cpld_timestamp), 154 le32_to_cpu(hdev->asic_prop.cpucp_info.cpld_version)); 155 } 156 157 static ssize_t cpucp_kernel_ver_show(struct device *dev, 158 struct device_attribute *attr, char *buf) 159 { 160 struct hl_device *hdev = dev_get_drvdata(dev); 161 162 return sprintf(buf, "%s", hdev->asic_prop.cpucp_info.kernel_version); 163 } 164 165 static ssize_t cpucp_ver_show(struct device *dev, struct device_attribute *attr, 166 char *buf) 167 { 168 struct hl_device *hdev = dev_get_drvdata(dev); 169 170 return sprintf(buf, "%s\n", hdev->asic_prop.cpucp_info.cpucp_version); 171 } 172 173 static ssize_t fuse_ver_show(struct device *dev, struct device_attribute *attr, 174 char *buf) 175 { 176 struct hl_device *hdev = dev_get_drvdata(dev); 177 178 return sprintf(buf, "%s\n", hdev->asic_prop.cpucp_info.fuse_version); 179 } 180 181 static ssize_t thermal_ver_show(struct device *dev, 182 struct device_attribute *attr, char *buf) 183 { 184 struct hl_device *hdev = dev_get_drvdata(dev); 185 186 return sprintf(buf, "%s", hdev->asic_prop.cpucp_info.thermal_version); 187 } 188 189 static ssize_t fw_os_ver_show(struct device *dev, 190 struct device_attribute *attr, char *buf) 191 { 192 struct hl_device *hdev = dev_get_drvdata(dev); 193 194 return sprintf(buf, "%s", hdev->asic_prop.cpucp_info.fw_os_version); 195 } 196 197 static ssize_t preboot_btl_ver_show(struct device *dev, 198 struct device_attribute *attr, char *buf) 199 { 200 struct hl_device *hdev = dev_get_drvdata(dev); 201 202 return sprintf(buf, "%s\n", hdev->asic_prop.preboot_ver); 203 } 204 205 static ssize_t soft_reset_store(struct device *dev, 206 struct device_attribute *attr, const char *buf, 207 size_t count) 208 { 209 struct hl_device *hdev = dev_get_drvdata(dev); 210 long value; 211 int rc; 212 213 rc = kstrtoul(buf, 0, &value); 214 215 if (rc) { 216 count = -EINVAL; 217 goto out; 218 } 219 220 if (!hdev->asic_prop.allow_inference_soft_reset) { 221 dev_err(hdev->dev, "Device does not support inference soft-reset\n"); 222 goto out; 223 } 224 225 dev_warn(hdev->dev, "Inference Soft-Reset requested through sysfs\n"); 226 227 hl_device_reset(hdev, 0); 228 229 out: 230 return count; 231 } 232 233 static ssize_t hard_reset_store(struct device *dev, 234 struct device_attribute *attr, 235 const char *buf, size_t count) 236 { 237 struct hl_device *hdev = dev_get_drvdata(dev); 238 long value; 239 int rc; 240 241 rc = kstrtoul(buf, 0, &value); 242 243 if (rc) { 244 count = -EINVAL; 245 goto out; 246 } 247 248 dev_warn(hdev->dev, "Hard-Reset requested through sysfs\n"); 249 250 hl_device_reset(hdev, HL_DRV_RESET_HARD); 251 252 out: 253 return count; 254 } 255 256 static ssize_t device_type_show(struct device *dev, 257 struct device_attribute *attr, char *buf) 258 { 259 struct hl_device *hdev = dev_get_drvdata(dev); 260 char *str; 261 262 switch (hdev->asic_type) { 263 case ASIC_GOYA: 264 str = "GOYA"; 265 break; 266 case ASIC_GAUDI: 267 str = "GAUDI"; 268 break; 269 case ASIC_GAUDI_SEC: 270 str = "GAUDI SEC"; 271 break; 272 case ASIC_GAUDI2: 273 str = "GAUDI2"; 274 break; 275 case ASIC_GAUDI2B: 276 str = "GAUDI2B"; 277 break; 278 case ASIC_GAUDI2C: 279 str = "GAUDI2C"; 280 break; 281 case ASIC_GAUDI2D: 282 str = "GAUDI2D"; 283 break; 284 default: 285 dev_err(hdev->dev, "Unrecognized ASIC type %d\n", 286 hdev->asic_type); 287 return -EINVAL; 288 } 289 290 return sprintf(buf, "%s\n", str); 291 } 292 293 static ssize_t pci_addr_show(struct device *dev, struct device_attribute *attr, 294 char *buf) 295 { 296 struct hl_device *hdev = dev_get_drvdata(dev); 297 298 return sprintf(buf, "%04x:%02x:%02x.%x\n", 299 pci_domain_nr(hdev->pdev->bus), 300 hdev->pdev->bus->number, 301 PCI_SLOT(hdev->pdev->devfn), 302 PCI_FUNC(hdev->pdev->devfn)); 303 } 304 305 static ssize_t status_show(struct device *dev, struct device_attribute *attr, 306 char *buf) 307 { 308 struct hl_device *hdev = dev_get_drvdata(dev); 309 char str[HL_STR_MAX]; 310 311 strscpy(str, hdev->status[hl_device_status(hdev)], HL_STR_MAX); 312 313 /* use uppercase for backward compatibility */ 314 str[0] = 'A' + (str[0] - 'a'); 315 316 return sprintf(buf, "%s\n", str); 317 } 318 319 static ssize_t soft_reset_cnt_show(struct device *dev, 320 struct device_attribute *attr, char *buf) 321 { 322 struct hl_device *hdev = dev_get_drvdata(dev); 323 324 return sprintf(buf, "%d\n", hdev->reset_info.compute_reset_cnt); 325 } 326 327 static ssize_t hard_reset_cnt_show(struct device *dev, 328 struct device_attribute *attr, char *buf) 329 { 330 struct hl_device *hdev = dev_get_drvdata(dev); 331 332 return sprintf(buf, "%d\n", hdev->reset_info.hard_reset_cnt); 333 } 334 335 static ssize_t max_power_show(struct device *dev, struct device_attribute *attr, 336 char *buf) 337 { 338 struct hl_device *hdev = dev_get_drvdata(dev); 339 long val; 340 341 if (!hl_device_operational(hdev, NULL)) 342 return -ENODEV; 343 344 val = hl_fw_get_max_power(hdev); 345 if (val < 0) 346 return val; 347 348 return sprintf(buf, "%lu\n", val); 349 } 350 351 static ssize_t max_power_store(struct device *dev, 352 struct device_attribute *attr, const char *buf, size_t count) 353 { 354 struct hl_device *hdev = dev_get_drvdata(dev); 355 unsigned long value; 356 int rc; 357 358 if (!hl_device_operational(hdev, NULL)) { 359 count = -ENODEV; 360 goto out; 361 } 362 363 rc = kstrtoul(buf, 0, &value); 364 365 if (rc) { 366 count = -EINVAL; 367 goto out; 368 } 369 370 hdev->max_power = value; 371 hl_fw_set_max_power(hdev); 372 373 out: 374 return count; 375 } 376 377 static ssize_t eeprom_read_handler(struct file *filp, struct kobject *kobj, 378 const struct bin_attribute *attr, char *buf, loff_t offset, 379 size_t max_size) 380 { 381 struct device *dev = kobj_to_dev(kobj); 382 struct hl_device *hdev = dev_get_drvdata(dev); 383 char *data; 384 int rc; 385 386 if (!hl_device_operational(hdev, NULL)) 387 return -ENODEV; 388 389 if (!max_size) 390 return -EINVAL; 391 392 data = kzalloc(max_size, GFP_KERNEL); 393 if (!data) 394 return -ENOMEM; 395 396 rc = hdev->asic_funcs->get_eeprom_data(hdev, data, max_size); 397 if (rc) 398 goto out; 399 400 memcpy(buf, data, max_size); 401 402 out: 403 kfree(data); 404 405 return max_size; 406 } 407 408 static ssize_t security_enabled_show(struct device *dev, 409 struct device_attribute *attr, char *buf) 410 { 411 struct hl_device *hdev = dev_get_drvdata(dev); 412 413 return sprintf(buf, "%d\n", hdev->asic_prop.fw_security_enabled); 414 } 415 416 static ssize_t module_id_show(struct device *dev, 417 struct device_attribute *attr, char *buf) 418 { 419 struct hl_device *hdev = dev_get_drvdata(dev); 420 421 return sprintf(buf, "%u\n", le32_to_cpu(hdev->asic_prop.cpucp_info.card_location)); 422 } 423 424 static ssize_t parent_device_show(struct device *dev, struct device_attribute *attr, char *buf) 425 { 426 struct hl_device *hdev = dev_get_drvdata(dev); 427 428 return sprintf(buf, "%s\n", HL_DEV_NAME(hdev)); 429 } 430 431 static DEVICE_ATTR_RO(armcp_kernel_ver); 432 static DEVICE_ATTR_RO(armcp_ver); 433 static DEVICE_ATTR_RO(cpld_ver); 434 static DEVICE_ATTR_RO(cpucp_kernel_ver); 435 static DEVICE_ATTR_RO(cpucp_ver); 436 static DEVICE_ATTR_RO(device_type); 437 static DEVICE_ATTR_RO(fuse_ver); 438 static DEVICE_ATTR_WO(hard_reset); 439 static DEVICE_ATTR_RO(hard_reset_cnt); 440 static DEVICE_ATTR_RW(max_power); 441 static DEVICE_ATTR_RO(pci_addr); 442 static DEVICE_ATTR_RO(preboot_btl_ver); 443 static DEVICE_ATTR_WO(soft_reset); 444 static DEVICE_ATTR_RO(soft_reset_cnt); 445 static DEVICE_ATTR_RO(status); 446 static DEVICE_ATTR_RO(thermal_ver); 447 static DEVICE_ATTR_RO(uboot_ver); 448 static DEVICE_ATTR_RO(fw_os_ver); 449 static DEVICE_ATTR_RO(security_enabled); 450 static DEVICE_ATTR_RO(module_id); 451 static DEVICE_ATTR_RO(parent_device); 452 453 static const struct bin_attribute bin_attr_eeprom = { 454 .attr = {.name = "eeprom", .mode = (0444)}, 455 .size = PAGE_SIZE, 456 .read = eeprom_read_handler 457 }; 458 459 static struct attribute *hl_dev_attrs[] = { 460 &dev_attr_armcp_kernel_ver.attr, 461 &dev_attr_armcp_ver.attr, 462 &dev_attr_cpld_ver.attr, 463 &dev_attr_cpucp_kernel_ver.attr, 464 &dev_attr_cpucp_ver.attr, 465 &dev_attr_device_type.attr, 466 &dev_attr_fuse_ver.attr, 467 &dev_attr_hard_reset.attr, 468 &dev_attr_hard_reset_cnt.attr, 469 &dev_attr_max_power.attr, 470 &dev_attr_pci_addr.attr, 471 &dev_attr_preboot_btl_ver.attr, 472 &dev_attr_status.attr, 473 &dev_attr_thermal_ver.attr, 474 &dev_attr_uboot_ver.attr, 475 &dev_attr_fw_os_ver.attr, 476 &dev_attr_security_enabled.attr, 477 &dev_attr_module_id.attr, 478 &dev_attr_parent_device.attr, 479 NULL, 480 }; 481 482 static const struct bin_attribute *const hl_dev_bin_attrs[] = { 483 &bin_attr_eeprom, 484 NULL 485 }; 486 487 static struct attribute_group hl_dev_attr_group = { 488 .attrs = hl_dev_attrs, 489 .bin_attrs = hl_dev_bin_attrs, 490 }; 491 492 static struct attribute_group hl_dev_clks_attr_group; 493 static struct attribute_group hl_dev_vrm_attr_group; 494 495 static const struct attribute_group *hl_dev_attr_groups[] = { 496 &hl_dev_attr_group, 497 &hl_dev_clks_attr_group, 498 &hl_dev_vrm_attr_group, 499 NULL, 500 }; 501 502 static struct attribute *hl_dev_inference_attrs[] = { 503 &dev_attr_soft_reset.attr, 504 &dev_attr_soft_reset_cnt.attr, 505 NULL, 506 }; 507 508 static struct attribute_group hl_dev_inference_attr_group = { 509 .attrs = hl_dev_inference_attrs, 510 }; 511 512 static const struct attribute_group *hl_dev_inference_attr_groups[] = { 513 &hl_dev_inference_attr_group, 514 NULL, 515 }; 516 517 void hl_sysfs_add_dev_clk_attr(struct hl_device *hdev, struct attribute_group *dev_clk_attr_grp) 518 { 519 dev_clk_attr_grp->attrs = hl_dev_clk_attrs; 520 } 521 522 void hl_sysfs_add_dev_vrm_attr(struct hl_device *hdev, struct attribute_group *dev_vrm_attr_grp) 523 { 524 dev_vrm_attr_grp->attrs = hl_dev_vrm_attrs; 525 } 526 527 int hl_sysfs_init(struct hl_device *hdev) 528 { 529 int rc; 530 531 hdev->max_power = hdev->asic_prop.max_power_default; 532 533 hdev->asic_funcs->add_device_attr(hdev, &hl_dev_clks_attr_group, &hl_dev_vrm_attr_group); 534 535 rc = device_add_groups(hdev->dev, hl_dev_attr_groups); 536 if (rc) { 537 dev_err(hdev->dev, 538 "Failed to add groups to device, error %d\n", rc); 539 return rc; 540 } 541 542 if (!hdev->asic_prop.allow_inference_soft_reset) 543 return 0; 544 545 rc = device_add_groups(hdev->dev, hl_dev_inference_attr_groups); 546 if (rc) { 547 dev_err(hdev->dev, 548 "Failed to add groups to device, error %d\n", rc); 549 goto remove_groups; 550 } 551 552 return 0; 553 554 remove_groups: 555 device_remove_groups(hdev->dev, hl_dev_attr_groups); 556 return rc; 557 } 558 559 void hl_sysfs_fini(struct hl_device *hdev) 560 { 561 device_remove_groups(hdev->dev, hl_dev_attr_groups); 562 563 if (!hdev->asic_prop.allow_inference_soft_reset) 564 return; 565 566 device_remove_groups(hdev->dev, hl_dev_inference_attr_groups); 567 } 568