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_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 106 return sprintf(buf, "%#04x\n", le32_to_cpu(cpucp_info->infineon_version)); 107 } 108 109 static DEVICE_ATTR_RO(vrm_ver); 110 111 static struct attribute *hl_dev_vrm_attrs[] = { 112 &dev_attr_vrm_ver.attr, 113 NULL, 114 }; 115 116 static ssize_t uboot_ver_show(struct device *dev, struct device_attribute *attr, 117 char *buf) 118 { 119 struct hl_device *hdev = dev_get_drvdata(dev); 120 121 return sprintf(buf, "%s\n", hdev->asic_prop.uboot_ver); 122 } 123 124 static ssize_t armcp_kernel_ver_show(struct device *dev, 125 struct device_attribute *attr, char *buf) 126 { 127 struct hl_device *hdev = dev_get_drvdata(dev); 128 129 return sprintf(buf, "%s", hdev->asic_prop.cpucp_info.kernel_version); 130 } 131 132 static ssize_t armcp_ver_show(struct device *dev, struct device_attribute *attr, 133 char *buf) 134 { 135 struct hl_device *hdev = dev_get_drvdata(dev); 136 137 return sprintf(buf, "%s\n", hdev->asic_prop.cpucp_info.cpucp_version); 138 } 139 140 static ssize_t cpld_ver_show(struct device *dev, struct device_attribute *attr, 141 char *buf) 142 { 143 struct hl_device *hdev = dev_get_drvdata(dev); 144 145 return sprintf(buf, "0x%08x\n", 146 le32_to_cpu(hdev->asic_prop.cpucp_info.cpld_version)); 147 } 148 149 static ssize_t cpucp_kernel_ver_show(struct device *dev, 150 struct device_attribute *attr, char *buf) 151 { 152 struct hl_device *hdev = dev_get_drvdata(dev); 153 154 return sprintf(buf, "%s", hdev->asic_prop.cpucp_info.kernel_version); 155 } 156 157 static ssize_t cpucp_ver_show(struct device *dev, struct device_attribute *attr, 158 char *buf) 159 { 160 struct hl_device *hdev = dev_get_drvdata(dev); 161 162 return sprintf(buf, "%s\n", hdev->asic_prop.cpucp_info.cpucp_version); 163 } 164 165 static ssize_t fuse_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.fuse_version); 171 } 172 173 static ssize_t thermal_ver_show(struct device *dev, 174 struct device_attribute *attr, char *buf) 175 { 176 struct hl_device *hdev = dev_get_drvdata(dev); 177 178 return sprintf(buf, "%s", hdev->asic_prop.cpucp_info.thermal_version); 179 } 180 181 static ssize_t fw_os_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.fw_os_version); 187 } 188 189 static ssize_t preboot_btl_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\n", hdev->asic_prop.preboot_ver); 195 } 196 197 static ssize_t soft_reset_store(struct device *dev, 198 struct device_attribute *attr, const char *buf, 199 size_t count) 200 { 201 struct hl_device *hdev = dev_get_drvdata(dev); 202 long value; 203 int rc; 204 205 rc = kstrtoul(buf, 0, &value); 206 207 if (rc) { 208 count = -EINVAL; 209 goto out; 210 } 211 212 if (!hdev->asic_prop.allow_inference_soft_reset) { 213 dev_err(hdev->dev, "Device does not support inference soft-reset\n"); 214 goto out; 215 } 216 217 dev_warn(hdev->dev, "Inference Soft-Reset requested through sysfs\n"); 218 219 hl_device_reset(hdev, 0); 220 221 out: 222 return count; 223 } 224 225 static ssize_t hard_reset_store(struct device *dev, 226 struct device_attribute *attr, 227 const char *buf, size_t count) 228 { 229 struct hl_device *hdev = dev_get_drvdata(dev); 230 long value; 231 int rc; 232 233 rc = kstrtoul(buf, 0, &value); 234 235 if (rc) { 236 count = -EINVAL; 237 goto out; 238 } 239 240 dev_warn(hdev->dev, "Hard-Reset requested through sysfs\n"); 241 242 hl_device_reset(hdev, HL_DRV_RESET_HARD); 243 244 out: 245 return count; 246 } 247 248 static ssize_t device_type_show(struct device *dev, 249 struct device_attribute *attr, char *buf) 250 { 251 struct hl_device *hdev = dev_get_drvdata(dev); 252 char *str; 253 254 switch (hdev->asic_type) { 255 case ASIC_GOYA: 256 str = "GOYA"; 257 break; 258 case ASIC_GAUDI: 259 str = "GAUDI"; 260 break; 261 case ASIC_GAUDI_SEC: 262 str = "GAUDI SEC"; 263 break; 264 case ASIC_GAUDI2: 265 str = "GAUDI2"; 266 break; 267 case ASIC_GAUDI2B: 268 str = "GAUDI2B"; 269 break; 270 case ASIC_GAUDI2C: 271 str = "GAUDI2C"; 272 break; 273 default: 274 dev_err(hdev->dev, "Unrecognized ASIC type %d\n", 275 hdev->asic_type); 276 return -EINVAL; 277 } 278 279 return sprintf(buf, "%s\n", str); 280 } 281 282 static ssize_t pci_addr_show(struct device *dev, struct device_attribute *attr, 283 char *buf) 284 { 285 struct hl_device *hdev = dev_get_drvdata(dev); 286 287 return sprintf(buf, "%04x:%02x:%02x.%x\n", 288 pci_domain_nr(hdev->pdev->bus), 289 hdev->pdev->bus->number, 290 PCI_SLOT(hdev->pdev->devfn), 291 PCI_FUNC(hdev->pdev->devfn)); 292 } 293 294 static ssize_t status_show(struct device *dev, struct device_attribute *attr, 295 char *buf) 296 { 297 struct hl_device *hdev = dev_get_drvdata(dev); 298 char str[HL_STR_MAX]; 299 300 strscpy(str, hdev->status[hl_device_status(hdev)], HL_STR_MAX); 301 302 /* use uppercase for backward compatibility */ 303 str[0] = 'A' + (str[0] - 'a'); 304 305 return sprintf(buf, "%s\n", str); 306 } 307 308 static ssize_t soft_reset_cnt_show(struct device *dev, 309 struct device_attribute *attr, char *buf) 310 { 311 struct hl_device *hdev = dev_get_drvdata(dev); 312 313 return sprintf(buf, "%d\n", hdev->reset_info.compute_reset_cnt); 314 } 315 316 static ssize_t hard_reset_cnt_show(struct device *dev, 317 struct device_attribute *attr, char *buf) 318 { 319 struct hl_device *hdev = dev_get_drvdata(dev); 320 321 return sprintf(buf, "%d\n", hdev->reset_info.hard_reset_cnt); 322 } 323 324 static ssize_t max_power_show(struct device *dev, struct device_attribute *attr, 325 char *buf) 326 { 327 struct hl_device *hdev = dev_get_drvdata(dev); 328 long val; 329 330 if (!hl_device_operational(hdev, NULL)) 331 return -ENODEV; 332 333 val = hl_fw_get_max_power(hdev); 334 if (val < 0) 335 return val; 336 337 return sprintf(buf, "%lu\n", val); 338 } 339 340 static ssize_t max_power_store(struct device *dev, 341 struct device_attribute *attr, const char *buf, size_t count) 342 { 343 struct hl_device *hdev = dev_get_drvdata(dev); 344 unsigned long value; 345 int rc; 346 347 if (!hl_device_operational(hdev, NULL)) { 348 count = -ENODEV; 349 goto out; 350 } 351 352 rc = kstrtoul(buf, 0, &value); 353 354 if (rc) { 355 count = -EINVAL; 356 goto out; 357 } 358 359 hdev->max_power = value; 360 hl_fw_set_max_power(hdev); 361 362 out: 363 return count; 364 } 365 366 static ssize_t eeprom_read_handler(struct file *filp, struct kobject *kobj, 367 struct bin_attribute *attr, char *buf, loff_t offset, 368 size_t max_size) 369 { 370 struct device *dev = kobj_to_dev(kobj); 371 struct hl_device *hdev = dev_get_drvdata(dev); 372 char *data; 373 int rc; 374 375 if (!hl_device_operational(hdev, NULL)) 376 return -ENODEV; 377 378 if (!max_size) 379 return -EINVAL; 380 381 data = kzalloc(max_size, GFP_KERNEL); 382 if (!data) 383 return -ENOMEM; 384 385 rc = hdev->asic_funcs->get_eeprom_data(hdev, data, max_size); 386 if (rc) 387 goto out; 388 389 memcpy(buf, data, max_size); 390 391 out: 392 kfree(data); 393 394 return max_size; 395 } 396 397 static ssize_t security_enabled_show(struct device *dev, 398 struct device_attribute *attr, char *buf) 399 { 400 struct hl_device *hdev = dev_get_drvdata(dev); 401 402 return sprintf(buf, "%d\n", hdev->asic_prop.fw_security_enabled); 403 } 404 405 static ssize_t module_id_show(struct device *dev, 406 struct device_attribute *attr, char *buf) 407 { 408 struct hl_device *hdev = dev_get_drvdata(dev); 409 410 return sprintf(buf, "%u\n", le32_to_cpu(hdev->asic_prop.cpucp_info.card_location)); 411 } 412 413 static ssize_t parent_device_show(struct device *dev, struct device_attribute *attr, char *buf) 414 { 415 struct hl_device *hdev = dev_get_drvdata(dev); 416 417 return sprintf(buf, "%s\n", HL_DEV_NAME(hdev)); 418 } 419 420 static DEVICE_ATTR_RO(armcp_kernel_ver); 421 static DEVICE_ATTR_RO(armcp_ver); 422 static DEVICE_ATTR_RO(cpld_ver); 423 static DEVICE_ATTR_RO(cpucp_kernel_ver); 424 static DEVICE_ATTR_RO(cpucp_ver); 425 static DEVICE_ATTR_RO(device_type); 426 static DEVICE_ATTR_RO(fuse_ver); 427 static DEVICE_ATTR_WO(hard_reset); 428 static DEVICE_ATTR_RO(hard_reset_cnt); 429 static DEVICE_ATTR_RW(max_power); 430 static DEVICE_ATTR_RO(pci_addr); 431 static DEVICE_ATTR_RO(preboot_btl_ver); 432 static DEVICE_ATTR_WO(soft_reset); 433 static DEVICE_ATTR_RO(soft_reset_cnt); 434 static DEVICE_ATTR_RO(status); 435 static DEVICE_ATTR_RO(thermal_ver); 436 static DEVICE_ATTR_RO(uboot_ver); 437 static DEVICE_ATTR_RO(fw_os_ver); 438 static DEVICE_ATTR_RO(security_enabled); 439 static DEVICE_ATTR_RO(module_id); 440 static DEVICE_ATTR_RO(parent_device); 441 442 static struct bin_attribute bin_attr_eeprom = { 443 .attr = {.name = "eeprom", .mode = (0444)}, 444 .size = PAGE_SIZE, 445 .read = eeprom_read_handler 446 }; 447 448 static struct attribute *hl_dev_attrs[] = { 449 &dev_attr_armcp_kernel_ver.attr, 450 &dev_attr_armcp_ver.attr, 451 &dev_attr_cpld_ver.attr, 452 &dev_attr_cpucp_kernel_ver.attr, 453 &dev_attr_cpucp_ver.attr, 454 &dev_attr_device_type.attr, 455 &dev_attr_fuse_ver.attr, 456 &dev_attr_hard_reset.attr, 457 &dev_attr_hard_reset_cnt.attr, 458 &dev_attr_max_power.attr, 459 &dev_attr_pci_addr.attr, 460 &dev_attr_preboot_btl_ver.attr, 461 &dev_attr_status.attr, 462 &dev_attr_thermal_ver.attr, 463 &dev_attr_uboot_ver.attr, 464 &dev_attr_fw_os_ver.attr, 465 &dev_attr_security_enabled.attr, 466 &dev_attr_module_id.attr, 467 &dev_attr_parent_device.attr, 468 NULL, 469 }; 470 471 static struct bin_attribute *hl_dev_bin_attrs[] = { 472 &bin_attr_eeprom, 473 NULL 474 }; 475 476 static struct attribute_group hl_dev_attr_group = { 477 .attrs = hl_dev_attrs, 478 .bin_attrs = hl_dev_bin_attrs, 479 }; 480 481 static struct attribute_group hl_dev_clks_attr_group; 482 static struct attribute_group hl_dev_vrm_attr_group; 483 484 static const struct attribute_group *hl_dev_attr_groups[] = { 485 &hl_dev_attr_group, 486 &hl_dev_clks_attr_group, 487 &hl_dev_vrm_attr_group, 488 NULL, 489 }; 490 491 static struct attribute *hl_dev_inference_attrs[] = { 492 &dev_attr_soft_reset.attr, 493 &dev_attr_soft_reset_cnt.attr, 494 NULL, 495 }; 496 497 static struct attribute_group hl_dev_inference_attr_group = { 498 .attrs = hl_dev_inference_attrs, 499 }; 500 501 static const struct attribute_group *hl_dev_inference_attr_groups[] = { 502 &hl_dev_inference_attr_group, 503 NULL, 504 }; 505 506 void hl_sysfs_add_dev_clk_attr(struct hl_device *hdev, struct attribute_group *dev_clk_attr_grp) 507 { 508 dev_clk_attr_grp->attrs = hl_dev_clk_attrs; 509 } 510 511 void hl_sysfs_add_dev_vrm_attr(struct hl_device *hdev, struct attribute_group *dev_vrm_attr_grp) 512 { 513 dev_vrm_attr_grp->attrs = hl_dev_vrm_attrs; 514 } 515 516 int hl_sysfs_init(struct hl_device *hdev) 517 { 518 int rc; 519 520 hdev->max_power = hdev->asic_prop.max_power_default; 521 522 hdev->asic_funcs->add_device_attr(hdev, &hl_dev_clks_attr_group, &hl_dev_vrm_attr_group); 523 524 rc = device_add_groups(hdev->dev, hl_dev_attr_groups); 525 if (rc) { 526 dev_err(hdev->dev, 527 "Failed to add groups to device, error %d\n", rc); 528 return rc; 529 } 530 531 if (!hdev->asic_prop.allow_inference_soft_reset) 532 return 0; 533 534 rc = device_add_groups(hdev->dev, hl_dev_inference_attr_groups); 535 if (rc) { 536 dev_err(hdev->dev, 537 "Failed to add groups to device, error %d\n", rc); 538 goto remove_groups; 539 } 540 541 return 0; 542 543 remove_groups: 544 device_remove_groups(hdev->dev, hl_dev_attr_groups); 545 return rc; 546 } 547 548 void hl_sysfs_fini(struct hl_device *hdev) 549 { 550 device_remove_groups(hdev->dev, hl_dev_attr_groups); 551 552 if (!hdev->asic_prop.allow_inference_soft_reset) 553 return; 554 555 device_remove_groups(hdev->dev, hl_dev_inference_attr_groups); 556 } 557