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