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