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8#include "habanalabs.h"
9
10#include <linux/pci.h>
11
12long hl_get_frequency(struct hl_device *hdev, u32 pll_index, bool curr)
13{
14 struct cpucp_packet pkt;
15 u32 used_pll_idx;
16 u64 result;
17 int rc;
18
19 rc = get_used_pll_index(hdev, pll_index, &used_pll_idx);
20 if (rc)
21 return rc;
22
23 memset(&pkt, 0, sizeof(pkt));
24
25 if (curr)
26 pkt.ctl = cpu_to_le32(CPUCP_PACKET_FREQUENCY_CURR_GET <<
27 CPUCP_PKT_CTL_OPCODE_SHIFT);
28 else
29 pkt.ctl = cpu_to_le32(CPUCP_PACKET_FREQUENCY_GET <<
30 CPUCP_PKT_CTL_OPCODE_SHIFT);
31 pkt.pll_index = cpu_to_le32((u32)used_pll_idx);
32
33 rc = hdev->asic_funcs->send_cpu_message(hdev, (u32 *) &pkt, sizeof(pkt),
34 0, &result);
35
36 if (rc) {
37 dev_err(hdev->dev,
38 "Failed to get frequency of PLL %d, error %d\n",
39 used_pll_idx, rc);
40 return rc;
41 }
42
43 return (long) result;
44}
45
46void hl_set_frequency(struct hl_device *hdev, u32 pll_index, u64 freq)
47{
48 struct cpucp_packet pkt;
49 u32 used_pll_idx;
50 int rc;
51
52 rc = get_used_pll_index(hdev, pll_index, &used_pll_idx);
53 if (rc)
54 return;
55
56 memset(&pkt, 0, sizeof(pkt));
57
58 pkt.ctl = cpu_to_le32(CPUCP_PACKET_FREQUENCY_SET <<
59 CPUCP_PKT_CTL_OPCODE_SHIFT);
60 pkt.pll_index = cpu_to_le32((u32)used_pll_idx);
61 pkt.value = cpu_to_le64(freq);
62
63 rc = hdev->asic_funcs->send_cpu_message(hdev, (u32 *) &pkt, sizeof(pkt),
64 0, NULL);
65
66 if (rc)
67 dev_err(hdev->dev,
68 "Failed to set frequency to PLL %d, error %d\n",
69 used_pll_idx, rc);
70}
71
72u64 hl_get_max_power(struct hl_device *hdev)
73{
74 struct cpucp_packet pkt;
75 u64 result;
76 int rc;
77
78 memset(&pkt, 0, sizeof(pkt));
79
80 pkt.ctl = cpu_to_le32(CPUCP_PACKET_MAX_POWER_GET <<
81 CPUCP_PKT_CTL_OPCODE_SHIFT);
82
83 rc = hdev->asic_funcs->send_cpu_message(hdev, (u32 *) &pkt, sizeof(pkt),
84 0, &result);
85
86 if (rc) {
87 dev_err(hdev->dev, "Failed to get max power, error %d\n", rc);
88 return (u64) rc;
89 }
90
91 return result;
92}
93
94void hl_set_max_power(struct hl_device *hdev)
95{
96 struct cpucp_packet pkt;
97 int rc;
98
99 memset(&pkt, 0, sizeof(pkt));
100
101 pkt.ctl = cpu_to_le32(CPUCP_PACKET_MAX_POWER_SET <<
102 CPUCP_PKT_CTL_OPCODE_SHIFT);
103 pkt.value = cpu_to_le64(hdev->max_power);
104
105 rc = hdev->asic_funcs->send_cpu_message(hdev, (u32 *) &pkt, sizeof(pkt),
106 0, NULL);
107
108 if (rc)
109 dev_err(hdev->dev, "Failed to set max power, error %d\n", rc);
110}
111
112static ssize_t uboot_ver_show(struct device *dev, struct device_attribute *attr,
113 char *buf)
114{
115 struct hl_device *hdev = dev_get_drvdata(dev);
116
117 return sprintf(buf, "%s\n", hdev->asic_prop.uboot_ver);
118}
119
120static ssize_t armcp_kernel_ver_show(struct device *dev,
121 struct device_attribute *attr, char *buf)
122{
123 struct hl_device *hdev = dev_get_drvdata(dev);
124
125 return sprintf(buf, "%s", hdev->asic_prop.cpucp_info.kernel_version);
126}
127
128static ssize_t armcp_ver_show(struct device *dev, struct device_attribute *attr,
129 char *buf)
130{
131 struct hl_device *hdev = dev_get_drvdata(dev);
132
133 return sprintf(buf, "%s\n", hdev->asic_prop.cpucp_info.cpucp_version);
134}
135
136static ssize_t cpld_ver_show(struct device *dev, struct device_attribute *attr,
137 char *buf)
138{
139 struct hl_device *hdev = dev_get_drvdata(dev);
140
141 return sprintf(buf, "0x%08x\n",
142 hdev->asic_prop.cpucp_info.cpld_version);
143}
144
145static ssize_t cpucp_kernel_ver_show(struct device *dev,
146 struct device_attribute *attr, char *buf)
147{
148 struct hl_device *hdev = dev_get_drvdata(dev);
149
150 return sprintf(buf, "%s", hdev->asic_prop.cpucp_info.kernel_version);
151}
152
153static ssize_t cpucp_ver_show(struct device *dev, struct device_attribute *attr,
154 char *buf)
155{
156 struct hl_device *hdev = dev_get_drvdata(dev);
157
158 return sprintf(buf, "%s\n", hdev->asic_prop.cpucp_info.cpucp_version);
159}
160
161static ssize_t infineon_ver_show(struct device *dev,
162 struct device_attribute *attr, char *buf)
163{
164 struct hl_device *hdev = dev_get_drvdata(dev);
165
166 return sprintf(buf, "0x%04x\n",
167 hdev->asic_prop.cpucp_info.infineon_version);
168}
169
170static ssize_t fuse_ver_show(struct device *dev, struct device_attribute *attr,
171 char *buf)
172{
173 struct hl_device *hdev = dev_get_drvdata(dev);
174
175 return sprintf(buf, "%s\n", hdev->asic_prop.cpucp_info.fuse_version);
176}
177
178static ssize_t thermal_ver_show(struct device *dev,
179 struct device_attribute *attr, char *buf)
180{
181 struct hl_device *hdev = dev_get_drvdata(dev);
182
183 return sprintf(buf, "%s", hdev->asic_prop.cpucp_info.thermal_version);
184}
185
186static ssize_t preboot_btl_ver_show(struct device *dev,
187 struct device_attribute *attr, char *buf)
188{
189 struct hl_device *hdev = dev_get_drvdata(dev);
190
191 return sprintf(buf, "%s\n", hdev->asic_prop.preboot_ver);
192}
193
194static ssize_t soft_reset_store(struct device *dev,
195 struct device_attribute *attr, const char *buf,
196 size_t count)
197{
198 struct hl_device *hdev = dev_get_drvdata(dev);
199 long value;
200 int rc;
201
202 rc = kstrtoul(buf, 0, &value);
203
204 if (rc) {
205 count = -EINVAL;
206 goto out;
207 }
208
209 if (!hdev->allow_external_soft_reset) {
210 dev_err(hdev->dev, "Device does not support soft-reset\n");
211 goto out;
212 }
213
214 dev_warn(hdev->dev, "Soft-Reset requested through sysfs\n");
215
216 hl_device_reset(hdev, 0);
217
218out:
219 return count;
220}
221
222static ssize_t hard_reset_store(struct device *dev,
223 struct device_attribute *attr,
224 const char *buf, size_t count)
225{
226 struct hl_device *hdev = dev_get_drvdata(dev);
227 long value;
228 int rc;
229
230 rc = kstrtoul(buf, 0, &value);
231
232 if (rc) {
233 count = -EINVAL;
234 goto out;
235 }
236
237 dev_warn(hdev->dev, "Hard-Reset requested through sysfs\n");
238
239 hl_device_reset(hdev, HL_RESET_HARD);
240
241out:
242 return count;
243}
244
245static ssize_t device_type_show(struct device *dev,
246 struct device_attribute *attr, char *buf)
247{
248 struct hl_device *hdev = dev_get_drvdata(dev);
249 char *str;
250
251 switch (hdev->asic_type) {
252 case ASIC_GOYA:
253 str = "GOYA";
254 break;
255 case ASIC_GAUDI:
256 str = "GAUDI";
257 break;
258 case ASIC_GAUDI_SEC:
259 str = "GAUDI SEC";
260 break;
261 default:
262 dev_err(hdev->dev, "Unrecognized ASIC type %d\n",
263 hdev->asic_type);
264 return -EINVAL;
265 }
266
267 return sprintf(buf, "%s\n", str);
268}
269
270static ssize_t pci_addr_show(struct device *dev, struct device_attribute *attr,
271 char *buf)
272{
273 struct hl_device *hdev = dev_get_drvdata(dev);
274
275 return sprintf(buf, "%04x:%02x:%02x.%x\n",
276 pci_domain_nr(hdev->pdev->bus),
277 hdev->pdev->bus->number,
278 PCI_SLOT(hdev->pdev->devfn),
279 PCI_FUNC(hdev->pdev->devfn));
280}
281
282static ssize_t status_show(struct device *dev, struct device_attribute *attr,
283 char *buf)
284{
285 struct hl_device *hdev = dev_get_drvdata(dev);
286 char str[HL_STR_MAX];
287
288 strscpy(str, hdev->status[hl_device_status(hdev)], HL_STR_MAX);
289
290
291 str[0] = 'A' + (str[0] - 'a');
292
293 return sprintf(buf, "%s\n", str);
294}
295
296static ssize_t soft_reset_cnt_show(struct device *dev,
297 struct device_attribute *attr, char *buf)
298{
299 struct hl_device *hdev = dev_get_drvdata(dev);
300
301 return sprintf(buf, "%d\n", hdev->soft_reset_cnt);
302}
303
304static ssize_t hard_reset_cnt_show(struct device *dev,
305 struct device_attribute *attr, char *buf)
306{
307 struct hl_device *hdev = dev_get_drvdata(dev);
308
309 return sprintf(buf, "%d\n", hdev->hard_reset_cnt);
310}
311
312static ssize_t max_power_show(struct device *dev, struct device_attribute *attr,
313 char *buf)
314{
315 struct hl_device *hdev = dev_get_drvdata(dev);
316 long val;
317
318 if (!hl_device_operational(hdev, NULL))
319 return -ENODEV;
320
321 val = hl_get_max_power(hdev);
322
323 return sprintf(buf, "%lu\n", val);
324}
325
326static ssize_t max_power_store(struct device *dev,
327 struct device_attribute *attr, const char *buf, size_t count)
328{
329 struct hl_device *hdev = dev_get_drvdata(dev);
330 unsigned long value;
331 int rc;
332
333 if (!hl_device_operational(hdev, NULL)) {
334 count = -ENODEV;
335 goto out;
336 }
337
338 rc = kstrtoul(buf, 0, &value);
339
340 if (rc) {
341 count = -EINVAL;
342 goto out;
343 }
344
345 hdev->max_power = value;
346 hl_set_max_power(hdev);
347
348out:
349 return count;
350}
351
352static ssize_t eeprom_read_handler(struct file *filp, struct kobject *kobj,
353 struct bin_attribute *attr, char *buf, loff_t offset,
354 size_t max_size)
355{
356 struct device *dev = kobj_to_dev(kobj);
357 struct hl_device *hdev = dev_get_drvdata(dev);
358 char *data;
359 int rc;
360
361 if (!hl_device_operational(hdev, NULL))
362 return -ENODEV;
363
364 if (!max_size)
365 return -EINVAL;
366
367 data = kzalloc(max_size, GFP_KERNEL);
368 if (!data)
369 return -ENOMEM;
370
371 rc = hdev->asic_funcs->get_eeprom_data(hdev, data, max_size);
372 if (rc)
373 goto out;
374
375 memcpy(buf, data, max_size);
376
377out:
378 kfree(data);
379
380 return max_size;
381}
382
383static DEVICE_ATTR_RO(armcp_kernel_ver);
384static DEVICE_ATTR_RO(armcp_ver);
385static DEVICE_ATTR_RO(cpld_ver);
386static DEVICE_ATTR_RO(cpucp_kernel_ver);
387static DEVICE_ATTR_RO(cpucp_ver);
388static DEVICE_ATTR_RO(device_type);
389static DEVICE_ATTR_RO(fuse_ver);
390static DEVICE_ATTR_WO(hard_reset);
391static DEVICE_ATTR_RO(hard_reset_cnt);
392static DEVICE_ATTR_RO(infineon_ver);
393static DEVICE_ATTR_RW(max_power);
394static DEVICE_ATTR_RO(pci_addr);
395static DEVICE_ATTR_RO(preboot_btl_ver);
396static DEVICE_ATTR_WO(soft_reset);
397static DEVICE_ATTR_RO(soft_reset_cnt);
398static DEVICE_ATTR_RO(status);
399static DEVICE_ATTR_RO(thermal_ver);
400static DEVICE_ATTR_RO(uboot_ver);
401
402static struct bin_attribute bin_attr_eeprom = {
403 .attr = {.name = "eeprom", .mode = (0444)},
404 .size = PAGE_SIZE,
405 .read = eeprom_read_handler
406};
407
408static struct attribute *hl_dev_attrs[] = {
409 &dev_attr_armcp_kernel_ver.attr,
410 &dev_attr_armcp_ver.attr,
411 &dev_attr_cpld_ver.attr,
412 &dev_attr_cpucp_kernel_ver.attr,
413 &dev_attr_cpucp_ver.attr,
414 &dev_attr_device_type.attr,
415 &dev_attr_fuse_ver.attr,
416 &dev_attr_hard_reset.attr,
417 &dev_attr_hard_reset_cnt.attr,
418 &dev_attr_infineon_ver.attr,
419 &dev_attr_max_power.attr,
420 &dev_attr_pci_addr.attr,
421 &dev_attr_preboot_btl_ver.attr,
422 &dev_attr_soft_reset.attr,
423 &dev_attr_soft_reset_cnt.attr,
424 &dev_attr_status.attr,
425 &dev_attr_thermal_ver.attr,
426 &dev_attr_uboot_ver.attr,
427 NULL,
428};
429
430static struct bin_attribute *hl_dev_bin_attrs[] = {
431 &bin_attr_eeprom,
432 NULL
433};
434
435static struct attribute_group hl_dev_attr_group = {
436 .attrs = hl_dev_attrs,
437 .bin_attrs = hl_dev_bin_attrs,
438};
439
440static struct attribute_group hl_dev_clks_attr_group;
441
442static const struct attribute_group *hl_dev_attr_groups[] = {
443 &hl_dev_attr_group,
444 &hl_dev_clks_attr_group,
445 NULL,
446};
447
448int hl_sysfs_init(struct hl_device *hdev)
449{
450 int rc;
451
452 if (hdev->asic_type == ASIC_GOYA)
453 hdev->pm_mng_profile = PM_AUTO;
454 else
455 hdev->pm_mng_profile = PM_MANUAL;
456
457 hdev->max_power = hdev->asic_prop.max_power_default;
458
459 hdev->asic_funcs->add_device_attr(hdev, &hl_dev_clks_attr_group);
460
461 rc = device_add_groups(hdev->dev, hl_dev_attr_groups);
462 if (rc) {
463 dev_err(hdev->dev,
464 "Failed to add groups to device, error %d\n", rc);
465 return rc;
466 }
467
468 return 0;
469}
470
471void hl_sysfs_fini(struct hl_device *hdev)
472{
473 device_remove_groups(hdev->dev, hl_dev_attr_groups);
474}
475
