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8#include "habanalabs.h"
9#include "include/hw_ip/mmu/mmu_general.h"
10
11#include <linux/pci.h>
12#include <linux/debugfs.h>
13#include <linux/uaccess.h>
14
15#define MMU_ADDR_BUF_SIZE 40
16#define MMU_ASID_BUF_SIZE 10
17#define MMU_KBUF_SIZE (MMU_ADDR_BUF_SIZE + MMU_ASID_BUF_SIZE)
18
19static struct dentry *hl_debug_root;
20
21static int hl_debugfs_i2c_read(struct hl_device *hdev, u8 i2c_bus, u8 i2c_addr,
22 u8 i2c_reg, u32 *val)
23{
24 struct armcp_packet pkt;
25 int rc;
26
27 if (hl_device_disabled_or_in_reset(hdev))
28 return -EBUSY;
29
30 memset(&pkt, 0, sizeof(pkt));
31
32 pkt.ctl = __cpu_to_le32(ARMCP_PACKET_I2C_RD <<
33 ARMCP_PKT_CTL_OPCODE_SHIFT);
34 pkt.i2c_bus = i2c_bus;
35 pkt.i2c_addr = i2c_addr;
36 pkt.i2c_reg = i2c_reg;
37
38 rc = hdev->asic_funcs->send_cpu_message(hdev, (u32 *) &pkt, sizeof(pkt),
39 HL_DEVICE_TIMEOUT_USEC, (long *) val);
40
41 if (rc)
42 dev_err(hdev->dev, "Failed to read from I2C, error %d\n", rc);
43
44 return rc;
45}
46
47static int hl_debugfs_i2c_write(struct hl_device *hdev, u8 i2c_bus, u8 i2c_addr,
48 u8 i2c_reg, u32 val)
49{
50 struct armcp_packet pkt;
51 int rc;
52
53 if (hl_device_disabled_or_in_reset(hdev))
54 return -EBUSY;
55
56 memset(&pkt, 0, sizeof(pkt));
57
58 pkt.ctl = __cpu_to_le32(ARMCP_PACKET_I2C_WR <<
59 ARMCP_PKT_CTL_OPCODE_SHIFT);
60 pkt.i2c_bus = i2c_bus;
61 pkt.i2c_addr = i2c_addr;
62 pkt.i2c_reg = i2c_reg;
63 pkt.value = __cpu_to_le64(val);
64
65 rc = hdev->asic_funcs->send_cpu_message(hdev, (u32 *) &pkt, sizeof(pkt),
66 HL_DEVICE_TIMEOUT_USEC, NULL);
67
68 if (rc)
69 dev_err(hdev->dev, "Failed to write to I2C, error %d\n", rc);
70
71 return rc;
72}
73
74static void hl_debugfs_led_set(struct hl_device *hdev, u8 led, u8 state)
75{
76 struct armcp_packet pkt;
77 int rc;
78
79 if (hl_device_disabled_or_in_reset(hdev))
80 return;
81
82 memset(&pkt, 0, sizeof(pkt));
83
84 pkt.ctl = __cpu_to_le32(ARMCP_PACKET_LED_SET <<
85 ARMCP_PKT_CTL_OPCODE_SHIFT);
86 pkt.led_index = __cpu_to_le32(led);
87 pkt.value = __cpu_to_le64(state);
88
89 rc = hdev->asic_funcs->send_cpu_message(hdev, (u32 *) &pkt, sizeof(pkt),
90 HL_DEVICE_TIMEOUT_USEC, NULL);
91
92 if (rc)
93 dev_err(hdev->dev, "Failed to set LED %d, error %d\n", led, rc);
94}
95
96static int command_buffers_show(struct seq_file *s, void *data)
97{
98 struct hl_debugfs_entry *entry = s->private;
99 struct hl_dbg_device_entry *dev_entry = entry->dev_entry;
100 struct hl_cb *cb;
101 bool first = true;
102
103 spin_lock(&dev_entry->cb_spinlock);
104
105 list_for_each_entry(cb, &dev_entry->cb_list, debugfs_list) {
106 if (first) {
107 first = false;
108 seq_puts(s, "\n");
109 seq_puts(s, " CB ID CTX ID CB size CB RefCnt mmap? CS counter\n");
110 seq_puts(s, "---------------------------------------------------------------\n");
111 }
112 seq_printf(s,
113 " %03d %d 0x%08x %d %d %d\n",
114 cb->id, cb->ctx_id, cb->size,
115 kref_read(&cb->refcount),
116 cb->mmap, cb->cs_cnt);
117 }
118
119 spin_unlock(&dev_entry->cb_spinlock);
120
121 if (!first)
122 seq_puts(s, "\n");
123
124 return 0;
125}
126
127static int command_submission_show(struct seq_file *s, void *data)
128{
129 struct hl_debugfs_entry *entry = s->private;
130 struct hl_dbg_device_entry *dev_entry = entry->dev_entry;
131 struct hl_cs *cs;
132 bool first = true;
133
134 spin_lock(&dev_entry->cs_spinlock);
135
136 list_for_each_entry(cs, &dev_entry->cs_list, debugfs_list) {
137 if (first) {
138 first = false;
139 seq_puts(s, "\n");
140 seq_puts(s, " CS ID CTX ASID CS RefCnt Submitted Completed\n");
141 seq_puts(s, "------------------------------------------------------\n");
142 }
143 seq_printf(s,
144 " %llu %d %d %d %d\n",
145 cs->sequence, cs->ctx->asid,
146 kref_read(&cs->refcount),
147 cs->submitted, cs->completed);
148 }
149
150 spin_unlock(&dev_entry->cs_spinlock);
151
152 if (!first)
153 seq_puts(s, "\n");
154
155 return 0;
156}
157
158static int command_submission_jobs_show(struct seq_file *s, void *data)
159{
160 struct hl_debugfs_entry *entry = s->private;
161 struct hl_dbg_device_entry *dev_entry = entry->dev_entry;
162 struct hl_cs_job *job;
163 bool first = true;
164
165 spin_lock(&dev_entry->cs_job_spinlock);
166
167 list_for_each_entry(job, &dev_entry->cs_job_list, debugfs_list) {
168 if (first) {
169 first = false;
170 seq_puts(s, "\n");
171 seq_puts(s, " JOB ID CS ID CTX ASID H/W Queue\n");
172 seq_puts(s, "---------------------------------------\n");
173 }
174 if (job->cs)
175 seq_printf(s,
176 " %02d %llu %d %d\n",
177 job->id, job->cs->sequence, job->cs->ctx->asid,
178 job->hw_queue_id);
179 else
180 seq_printf(s,
181 " %02d 0 %d %d\n",
182 job->id, HL_KERNEL_ASID_ID, job->hw_queue_id);
183 }
184
185 spin_unlock(&dev_entry->cs_job_spinlock);
186
187 if (!first)
188 seq_puts(s, "\n");
189
190 return 0;
191}
192
193static int userptr_show(struct seq_file *s, void *data)
194{
195 struct hl_debugfs_entry *entry = s->private;
196 struct hl_dbg_device_entry *dev_entry = entry->dev_entry;
197 struct hl_userptr *userptr;
198 char dma_dir[4][30] = {"DMA_BIDIRECTIONAL", "DMA_TO_DEVICE",
199 "DMA_FROM_DEVICE", "DMA_NONE"};
200 bool first = true;
201
202 spin_lock(&dev_entry->userptr_spinlock);
203
204 list_for_each_entry(userptr, &dev_entry->userptr_list, debugfs_list) {
205 if (first) {
206 first = false;
207 seq_puts(s, "\n");
208 seq_puts(s, " user virtual address size dma dir\n");
209 seq_puts(s, "----------------------------------------------------------\n");
210 }
211 seq_printf(s,
212 " 0x%-14llx %-10u %-30s\n",
213 userptr->addr, userptr->size, dma_dir[userptr->dir]);
214 }
215
216 spin_unlock(&dev_entry->userptr_spinlock);
217
218 if (!first)
219 seq_puts(s, "\n");
220
221 return 0;
222}
223
224static int vm_show(struct seq_file *s, void *data)
225{
226 struct hl_debugfs_entry *entry = s->private;
227 struct hl_dbg_device_entry *dev_entry = entry->dev_entry;
228 struct hl_ctx *ctx;
229 struct hl_vm *vm;
230 struct hl_vm_hash_node *hnode;
231 struct hl_userptr *userptr;
232 struct hl_vm_phys_pg_pack *phys_pg_pack = NULL;
233 enum vm_type_t *vm_type;
234 bool once = true;
235 u64 j;
236 int i;
237
238 if (!dev_entry->hdev->mmu_enable)
239 return 0;
240
241 spin_lock(&dev_entry->ctx_mem_hash_spinlock);
242
243 list_for_each_entry(ctx, &dev_entry->ctx_mem_hash_list, debugfs_list) {
244 once = false;
245 seq_puts(s, "\n\n----------------------------------------------------");
246 seq_puts(s, "\n----------------------------------------------------\n\n");
247 seq_printf(s, "ctx asid: %u\n", ctx->asid);
248
249 seq_puts(s, "\nmappings:\n\n");
250 seq_puts(s, " virtual address size handle\n");
251 seq_puts(s, "----------------------------------------------------\n");
252 mutex_lock(&ctx->mem_hash_lock);
253 hash_for_each(ctx->mem_hash, i, hnode, node) {
254 vm_type = hnode->ptr;
255
256 if (*vm_type == VM_TYPE_USERPTR) {
257 userptr = hnode->ptr;
258 seq_printf(s,
259 " 0x%-14llx %-10u\n",
260 hnode->vaddr, userptr->size);
261 } else {
262 phys_pg_pack = hnode->ptr;
263 seq_printf(s,
264 " 0x%-14llx %-10llu %-4u\n",
265 hnode->vaddr, phys_pg_pack->total_size,
266 phys_pg_pack->handle);
267 }
268 }
269 mutex_unlock(&ctx->mem_hash_lock);
270
271 vm = &ctx->hdev->vm;
272 spin_lock(&vm->idr_lock);
273
274 if (!idr_is_empty(&vm->phys_pg_pack_handles))
275 seq_puts(s, "\n\nallocations:\n");
276
277 idr_for_each_entry(&vm->phys_pg_pack_handles, phys_pg_pack, i) {
278 if (phys_pg_pack->asid != ctx->asid)
279 continue;
280
281 seq_printf(s, "\nhandle: %u\n", phys_pg_pack->handle);
282 seq_printf(s, "page size: %u\n\n",
283 phys_pg_pack->page_size);
284 seq_puts(s, " physical address\n");
285 seq_puts(s, "---------------------\n");
286 for (j = 0 ; j < phys_pg_pack->npages ; j++) {
287 seq_printf(s, " 0x%-14llx\n",
288 phys_pg_pack->pages[j]);
289 }
290 }
291 spin_unlock(&vm->idr_lock);
292
293 }
294
295 spin_unlock(&dev_entry->ctx_mem_hash_spinlock);
296
297 if (!once)
298 seq_puts(s, "\n");
299
300 return 0;
301}
302
303
304static inline u64 get_hop0_addr(struct hl_ctx *ctx)
305{
306 return ctx->hdev->asic_prop.mmu_pgt_addr +
307 (ctx->asid * ctx->hdev->asic_prop.mmu_hop_table_size);
308}
309
310static inline u64 get_hop0_pte_addr(struct hl_ctx *ctx, u64 hop_addr,
311 u64 virt_addr)
312{
313 return hop_addr + ctx->hdev->asic_prop.mmu_pte_size *
314 ((virt_addr & HOP0_MASK) >> HOP0_SHIFT);
315}
316
317static inline u64 get_hop1_pte_addr(struct hl_ctx *ctx, u64 hop_addr,
318 u64 virt_addr)
319{
320 return hop_addr + ctx->hdev->asic_prop.mmu_pte_size *
321 ((virt_addr & HOP1_MASK) >> HOP1_SHIFT);
322}
323
324static inline u64 get_hop2_pte_addr(struct hl_ctx *ctx, u64 hop_addr,
325 u64 virt_addr)
326{
327 return hop_addr + ctx->hdev->asic_prop.mmu_pte_size *
328 ((virt_addr & HOP2_MASK) >> HOP2_SHIFT);
329}
330
331static inline u64 get_hop3_pte_addr(struct hl_ctx *ctx, u64 hop_addr,
332 u64 virt_addr)
333{
334 return hop_addr + ctx->hdev->asic_prop.mmu_pte_size *
335 ((virt_addr & HOP3_MASK) >> HOP3_SHIFT);
336}
337
338static inline u64 get_hop4_pte_addr(struct hl_ctx *ctx, u64 hop_addr,
339 u64 virt_addr)
340{
341 return hop_addr + ctx->hdev->asic_prop.mmu_pte_size *
342 ((virt_addr & HOP4_MASK) >> HOP4_SHIFT);
343}
344
345static inline u64 get_next_hop_addr(u64 curr_pte)
346{
347 if (curr_pte & PAGE_PRESENT_MASK)
348 return curr_pte & PHYS_ADDR_MASK;
349 else
350 return ULLONG_MAX;
351}
352
353static int mmu_show(struct seq_file *s, void *data)
354{
355 struct hl_debugfs_entry *entry = s->private;
356 struct hl_dbg_device_entry *dev_entry = entry->dev_entry;
357 struct hl_device *hdev = dev_entry->hdev;
358 struct hl_ctx *ctx = hdev->user_ctx;
359
360 u64 hop0_addr = 0, hop0_pte_addr = 0, hop0_pte = 0,
361 hop1_addr = 0, hop1_pte_addr = 0, hop1_pte = 0,
362 hop2_addr = 0, hop2_pte_addr = 0, hop2_pte = 0,
363 hop3_addr = 0, hop3_pte_addr = 0, hop3_pte = 0,
364 hop4_addr = 0, hop4_pte_addr = 0, hop4_pte = 0,
365 virt_addr = dev_entry->mmu_addr;
366
367 if (!hdev->mmu_enable)
368 return 0;
369
370 if (!ctx) {
371 dev_err(hdev->dev, "no ctx available\n");
372 return 0;
373 }
374
375 mutex_lock(&ctx->mmu_lock);
376
377
378
379 hop0_addr = get_hop0_addr(ctx);
380 hop0_pte_addr = get_hop0_pte_addr(ctx, hop0_addr, virt_addr);
381 hop0_pte = hdev->asic_funcs->read_pte(hdev, hop0_pte_addr);
382 hop1_addr = get_next_hop_addr(hop0_pte);
383
384 if (hop1_addr == ULLONG_MAX)
385 goto not_mapped;
386
387 hop1_pte_addr = get_hop1_pte_addr(ctx, hop1_addr, virt_addr);
388 hop1_pte = hdev->asic_funcs->read_pte(hdev, hop1_pte_addr);
389 hop2_addr = get_next_hop_addr(hop1_pte);
390
391 if (hop2_addr == ULLONG_MAX)
392 goto not_mapped;
393
394 hop2_pte_addr = get_hop2_pte_addr(ctx, hop2_addr, virt_addr);
395 hop2_pte = hdev->asic_funcs->read_pte(hdev, hop2_pte_addr);
396 hop3_addr = get_next_hop_addr(hop2_pte);
397
398 if (hop3_addr == ULLONG_MAX)
399 goto not_mapped;
400
401 hop3_pte_addr = get_hop3_pte_addr(ctx, hop3_addr, virt_addr);
402 hop3_pte = hdev->asic_funcs->read_pte(hdev, hop3_pte_addr);
403
404 if (!(hop3_pte & LAST_MASK)) {
405 hop4_addr = get_next_hop_addr(hop3_pte);
406
407 if (hop4_addr == ULLONG_MAX)
408 goto not_mapped;
409
410 hop4_pte_addr = get_hop4_pte_addr(ctx, hop4_addr, virt_addr);
411 hop4_pte = hdev->asic_funcs->read_pte(hdev, hop4_pte_addr);
412 if (!(hop4_pte & PAGE_PRESENT_MASK))
413 goto not_mapped;
414 } else {
415 if (!(hop3_pte & PAGE_PRESENT_MASK))
416 goto not_mapped;
417 }
418
419 seq_printf(s, "asid: %u, virt_addr: 0x%llx\n",
420 dev_entry->mmu_asid, dev_entry->mmu_addr);
421
422 seq_printf(s, "hop0_addr: 0x%llx\n", hop0_addr);
423 seq_printf(s, "hop0_pte_addr: 0x%llx\n", hop0_pte_addr);
424 seq_printf(s, "hop0_pte: 0x%llx\n", hop0_pte);
425
426 seq_printf(s, "hop1_addr: 0x%llx\n", hop1_addr);
427 seq_printf(s, "hop1_pte_addr: 0x%llx\n", hop1_pte_addr);
428 seq_printf(s, "hop1_pte: 0x%llx\n", hop1_pte);
429
430 seq_printf(s, "hop2_addr: 0x%llx\n", hop2_addr);
431 seq_printf(s, "hop2_pte_addr: 0x%llx\n", hop2_pte_addr);
432 seq_printf(s, "hop2_pte: 0x%llx\n", hop2_pte);
433
434 seq_printf(s, "hop3_addr: 0x%llx\n", hop3_addr);
435 seq_printf(s, "hop3_pte_addr: 0x%llx\n", hop3_pte_addr);
436 seq_printf(s, "hop3_pte: 0x%llx\n", hop3_pte);
437
438 if (!(hop3_pte & LAST_MASK)) {
439 seq_printf(s, "hop4_addr: 0x%llx\n", hop4_addr);
440 seq_printf(s, "hop4_pte_addr: 0x%llx\n", hop4_pte_addr);
441 seq_printf(s, "hop4_pte: 0x%llx\n", hop4_pte);
442 }
443
444 goto out;
445
446not_mapped:
447 dev_err(hdev->dev, "virt addr 0x%llx is not mapped to phys addr\n",
448 virt_addr);
449out:
450 mutex_unlock(&ctx->mmu_lock);
451
452 return 0;
453}
454
455static ssize_t mmu_write(struct file *file, const char __user *buf,
456 size_t count, loff_t *f_pos)
457{
458 struct seq_file *s = file->private_data;
459 struct hl_debugfs_entry *entry = s->private;
460 struct hl_dbg_device_entry *dev_entry = entry->dev_entry;
461 struct hl_device *hdev = dev_entry->hdev;
462 char kbuf[MMU_KBUF_SIZE];
463 char *c;
464 ssize_t rc;
465
466 if (!hdev->mmu_enable)
467 return count;
468
469 if (count > sizeof(kbuf) - 1)
470 goto err;
471 if (copy_from_user(kbuf, buf, count))
472 goto err;
473 kbuf[count] = 0;
474
475 c = strchr(kbuf, ' ');
476 if (!c)
477 goto err;
478 *c = '\0';
479
480 rc = kstrtouint(kbuf, 10, &dev_entry->mmu_asid);
481 if (rc)
482 goto err;
483
484 if (strncmp(c+1, "0x", 2))
485 goto err;
486 rc = kstrtoull(c+3, 16, &dev_entry->mmu_addr);
487 if (rc)
488 goto err;
489
490 return count;
491
492err:
493 dev_err(hdev->dev, "usage: echo <asid> <0xaddr> > mmu\n");
494
495 return -EINVAL;
496}
497
498static int device_va_to_pa(struct hl_device *hdev, u64 virt_addr,
499 u64 *phys_addr)
500{
501 struct hl_ctx *ctx = hdev->user_ctx;
502 u64 hop_addr, hop_pte_addr, hop_pte;
503 u64 offset_mask = HOP4_MASK | OFFSET_MASK;
504 int rc = 0;
505
506 if (!ctx) {
507 dev_err(hdev->dev, "no ctx available\n");
508 return -EINVAL;
509 }
510
511 mutex_lock(&ctx->mmu_lock);
512
513
514 hop_addr = get_hop0_addr(ctx);
515 hop_pte_addr = get_hop0_pte_addr(ctx, hop_addr, virt_addr);
516 hop_pte = hdev->asic_funcs->read_pte(hdev, hop_pte_addr);
517
518
519 hop_addr = get_next_hop_addr(hop_pte);
520 if (hop_addr == ULLONG_MAX)
521 goto not_mapped;
522 hop_pte_addr = get_hop1_pte_addr(ctx, hop_addr, virt_addr);
523 hop_pte = hdev->asic_funcs->read_pte(hdev, hop_pte_addr);
524
525
526 hop_addr = get_next_hop_addr(hop_pte);
527 if (hop_addr == ULLONG_MAX)
528 goto not_mapped;
529 hop_pte_addr = get_hop2_pte_addr(ctx, hop_addr, virt_addr);
530 hop_pte = hdev->asic_funcs->read_pte(hdev, hop_pte_addr);
531
532
533 hop_addr = get_next_hop_addr(hop_pte);
534 if (hop_addr == ULLONG_MAX)
535 goto not_mapped;
536 hop_pte_addr = get_hop3_pte_addr(ctx, hop_addr, virt_addr);
537 hop_pte = hdev->asic_funcs->read_pte(hdev, hop_pte_addr);
538
539 if (!(hop_pte & LAST_MASK)) {
540
541 hop_addr = get_next_hop_addr(hop_pte);
542 if (hop_addr == ULLONG_MAX)
543 goto not_mapped;
544 hop_pte_addr = get_hop4_pte_addr(ctx, hop_addr, virt_addr);
545 hop_pte = hdev->asic_funcs->read_pte(hdev, hop_pte_addr);
546
547 offset_mask = OFFSET_MASK;
548 }
549
550 if (!(hop_pte & PAGE_PRESENT_MASK))
551 goto not_mapped;
552
553 *phys_addr = (hop_pte & ~offset_mask) | (virt_addr & offset_mask);
554
555 goto out;
556
557not_mapped:
558 dev_err(hdev->dev, "virt addr 0x%llx is not mapped to phys addr\n",
559 virt_addr);
560 rc = -EINVAL;
561out:
562 mutex_unlock(&ctx->mmu_lock);
563 return rc;
564}
565
566static ssize_t hl_data_read32(struct file *f, char __user *buf,
567 size_t count, loff_t *ppos)
568{
569 struct hl_dbg_device_entry *entry = file_inode(f)->i_private;
570 struct hl_device *hdev = entry->hdev;
571 struct asic_fixed_properties *prop = &hdev->asic_prop;
572 char tmp_buf[32];
573 u64 addr = entry->addr;
574 u32 val;
575 ssize_t rc;
576
577 if (*ppos)
578 return 0;
579
580 if (addr >= prop->va_space_dram_start_address &&
581 addr < prop->va_space_dram_end_address &&
582 hdev->mmu_enable &&
583 hdev->dram_supports_virtual_memory) {
584 rc = device_va_to_pa(hdev, entry->addr, &addr);
585 if (rc)
586 return rc;
587 }
588
589 rc = hdev->asic_funcs->debugfs_read32(hdev, addr, &val);
590 if (rc) {
591 dev_err(hdev->dev, "Failed to read from 0x%010llx\n", addr);
592 return rc;
593 }
594
595 sprintf(tmp_buf, "0x%08x\n", val);
596 return simple_read_from_buffer(buf, count, ppos, tmp_buf,
597 strlen(tmp_buf));
598}
599
600static ssize_t hl_data_write32(struct file *f, const char __user *buf,
601 size_t count, loff_t *ppos)
602{
603 struct hl_dbg_device_entry *entry = file_inode(f)->i_private;
604 struct hl_device *hdev = entry->hdev;
605 struct asic_fixed_properties *prop = &hdev->asic_prop;
606 u64 addr = entry->addr;
607 u32 value;
608 ssize_t rc;
609
610 rc = kstrtouint_from_user(buf, count, 16, &value);
611 if (rc)
612 return rc;
613
614 if (addr >= prop->va_space_dram_start_address &&
615 addr < prop->va_space_dram_end_address &&
616 hdev->mmu_enable &&
617 hdev->dram_supports_virtual_memory) {
618 rc = device_va_to_pa(hdev, entry->addr, &addr);
619 if (rc)
620 return rc;
621 }
622
623 rc = hdev->asic_funcs->debugfs_write32(hdev, addr, value);
624 if (rc) {
625 dev_err(hdev->dev, "Failed to write 0x%08x to 0x%010llx\n",
626 value, addr);
627 return rc;
628 }
629
630 return count;
631}
632
633static ssize_t hl_get_power_state(struct file *f, char __user *buf,
634 size_t count, loff_t *ppos)
635{
636 struct hl_dbg_device_entry *entry = file_inode(f)->i_private;
637 struct hl_device *hdev = entry->hdev;
638 char tmp_buf[200];
639 int i;
640
641 if (*ppos)
642 return 0;
643
644 if (hdev->pdev->current_state == PCI_D0)
645 i = 1;
646 else if (hdev->pdev->current_state == PCI_D3hot)
647 i = 2;
648 else
649 i = 3;
650
651 sprintf(tmp_buf,
652 "current power state: %d\n1 - D0\n2 - D3hot\n3 - Unknown\n", i);
653 return simple_read_from_buffer(buf, count, ppos, tmp_buf,
654 strlen(tmp_buf));
655}
656
657static ssize_t hl_set_power_state(struct file *f, const char __user *buf,
658 size_t count, loff_t *ppos)
659{
660 struct hl_dbg_device_entry *entry = file_inode(f)->i_private;
661 struct hl_device *hdev = entry->hdev;
662 u32 value;
663 ssize_t rc;
664
665 rc = kstrtouint_from_user(buf, count, 10, &value);
666 if (rc)
667 return rc;
668
669 if (value == 1) {
670 pci_set_power_state(hdev->pdev, PCI_D0);
671 pci_restore_state(hdev->pdev);
672 rc = pci_enable_device(hdev->pdev);
673 } else if (value == 2) {
674 pci_save_state(hdev->pdev);
675 pci_disable_device(hdev->pdev);
676 pci_set_power_state(hdev->pdev, PCI_D3hot);
677 } else {
678 dev_dbg(hdev->dev, "invalid power state value %u\n", value);
679 return -EINVAL;
680 }
681
682 return count;
683}
684
685static ssize_t hl_i2c_data_read(struct file *f, char __user *buf,
686 size_t count, loff_t *ppos)
687{
688 struct hl_dbg_device_entry *entry = file_inode(f)->i_private;
689 struct hl_device *hdev = entry->hdev;
690 char tmp_buf[32];
691 u32 val;
692 ssize_t rc;
693
694 if (*ppos)
695 return 0;
696
697 rc = hl_debugfs_i2c_read(hdev, entry->i2c_bus, entry->i2c_addr,
698 entry->i2c_reg, &val);
699 if (rc) {
700 dev_err(hdev->dev,
701 "Failed to read from I2C bus %d, addr %d, reg %d\n",
702 entry->i2c_bus, entry->i2c_addr, entry->i2c_reg);
703 return rc;
704 }
705
706 sprintf(tmp_buf, "0x%02x\n", val);
707 rc = simple_read_from_buffer(buf, count, ppos, tmp_buf,
708 strlen(tmp_buf));
709
710 return rc;
711}
712
713static ssize_t hl_i2c_data_write(struct file *f, const char __user *buf,
714 size_t count, loff_t *ppos)
715{
716 struct hl_dbg_device_entry *entry = file_inode(f)->i_private;
717 struct hl_device *hdev = entry->hdev;
718 u32 value;
719 ssize_t rc;
720
721 rc = kstrtouint_from_user(buf, count, 16, &value);
722 if (rc)
723 return rc;
724
725 rc = hl_debugfs_i2c_write(hdev, entry->i2c_bus, entry->i2c_addr,
726 entry->i2c_reg, value);
727 if (rc) {
728 dev_err(hdev->dev,
729 "Failed to write 0x%02x to I2C bus %d, addr %d, reg %d\n",
730 value, entry->i2c_bus, entry->i2c_addr, entry->i2c_reg);
731 return rc;
732 }
733
734 return count;
735}
736
737static ssize_t hl_led0_write(struct file *f, const char __user *buf,
738 size_t count, loff_t *ppos)
739{
740 struct hl_dbg_device_entry *entry = file_inode(f)->i_private;
741 struct hl_device *hdev = entry->hdev;
742 u32 value;
743 ssize_t rc;
744
745 rc = kstrtouint_from_user(buf, count, 10, &value);
746 if (rc)
747 return rc;
748
749 value = value ? 1 : 0;
750
751 hl_debugfs_led_set(hdev, 0, value);
752
753 return count;
754}
755
756static ssize_t hl_led1_write(struct file *f, const char __user *buf,
757 size_t count, loff_t *ppos)
758{
759 struct hl_dbg_device_entry *entry = file_inode(f)->i_private;
760 struct hl_device *hdev = entry->hdev;
761 u32 value;
762 ssize_t rc;
763
764 rc = kstrtouint_from_user(buf, count, 10, &value);
765 if (rc)
766 return rc;
767
768 value = value ? 1 : 0;
769
770 hl_debugfs_led_set(hdev, 1, value);
771
772 return count;
773}
774
775static ssize_t hl_led2_write(struct file *f, const char __user *buf,
776 size_t count, loff_t *ppos)
777{
778 struct hl_dbg_device_entry *entry = file_inode(f)->i_private;
779 struct hl_device *hdev = entry->hdev;
780 u32 value;
781 ssize_t rc;
782
783 rc = kstrtouint_from_user(buf, count, 10, &value);
784 if (rc)
785 return rc;
786
787 value = value ? 1 : 0;
788
789 hl_debugfs_led_set(hdev, 2, value);
790
791 return count;
792}
793
794static ssize_t hl_device_read(struct file *f, char __user *buf,
795 size_t count, loff_t *ppos)
796{
797 static const char *help =
798 "Valid values: disable, enable, suspend, resume, cpu_timeout\n";
799 return simple_read_from_buffer(buf, count, ppos, help, strlen(help));
800}
801
802static ssize_t hl_device_write(struct file *f, const char __user *buf,
803 size_t count, loff_t *ppos)
804{
805 struct hl_dbg_device_entry *entry = file_inode(f)->i_private;
806 struct hl_device *hdev = entry->hdev;
807 char data[30] = {0};
808
809
810 if (*ppos != 0)
811 return 0;
812
813 simple_write_to_buffer(data, 29, ppos, buf, count);
814
815 if (strncmp("disable", data, strlen("disable")) == 0) {
816 hdev->disabled = true;
817 } else if (strncmp("enable", data, strlen("enable")) == 0) {
818 hdev->disabled = false;
819 } else if (strncmp("suspend", data, strlen("suspend")) == 0) {
820 hdev->asic_funcs->suspend(hdev);
821 } else if (strncmp("resume", data, strlen("resume")) == 0) {
822 hdev->asic_funcs->resume(hdev);
823 } else if (strncmp("cpu_timeout", data, strlen("cpu_timeout")) == 0) {
824 hdev->device_cpu_disabled = true;
825 } else {
826 dev_err(hdev->dev,
827 "Valid values: disable, enable, suspend, resume, cpu_timeout\n");
828 count = -EINVAL;
829 }
830
831 return count;
832}
833
834static const struct file_operations hl_data32b_fops = {
835 .owner = THIS_MODULE,
836 .read = hl_data_read32,
837 .write = hl_data_write32
838};
839
840static const struct file_operations hl_i2c_data_fops = {
841 .owner = THIS_MODULE,
842 .read = hl_i2c_data_read,
843 .write = hl_i2c_data_write
844};
845
846static const struct file_operations hl_power_fops = {
847 .owner = THIS_MODULE,
848 .read = hl_get_power_state,
849 .write = hl_set_power_state
850};
851
852static const struct file_operations hl_led0_fops = {
853 .owner = THIS_MODULE,
854 .write = hl_led0_write
855};
856
857static const struct file_operations hl_led1_fops = {
858 .owner = THIS_MODULE,
859 .write = hl_led1_write
860};
861
862static const struct file_operations hl_led2_fops = {
863 .owner = THIS_MODULE,
864 .write = hl_led2_write
865};
866
867static const struct file_operations hl_device_fops = {
868 .owner = THIS_MODULE,
869 .read = hl_device_read,
870 .write = hl_device_write
871};
872
873static const struct hl_info_list hl_debugfs_list[] = {
874 {"command_buffers", command_buffers_show, NULL},
875 {"command_submission", command_submission_show, NULL},
876 {"command_submission_jobs", command_submission_jobs_show, NULL},
877 {"userptr", userptr_show, NULL},
878 {"vm", vm_show, NULL},
879 {"mmu", mmu_show, mmu_write},
880};
881
882static int hl_debugfs_open(struct inode *inode, struct file *file)
883{
884 struct hl_debugfs_entry *node = inode->i_private;
885
886 return single_open(file, node->info_ent->show, node);
887}
888
889static ssize_t hl_debugfs_write(struct file *file, const char __user *buf,
890 size_t count, loff_t *f_pos)
891{
892 struct hl_debugfs_entry *node = file->f_inode->i_private;
893
894 if (node->info_ent->write)
895 return node->info_ent->write(file, buf, count, f_pos);
896 else
897 return -EINVAL;
898
899}
900
901static const struct file_operations hl_debugfs_fops = {
902 .owner = THIS_MODULE,
903 .open = hl_debugfs_open,
904 .read = seq_read,
905 .write = hl_debugfs_write,
906 .llseek = seq_lseek,
907 .release = single_release,
908};
909
910void hl_debugfs_add_device(struct hl_device *hdev)
911{
912 struct hl_dbg_device_entry *dev_entry = &hdev->hl_debugfs;
913 int count = ARRAY_SIZE(hl_debugfs_list);
914 struct hl_debugfs_entry *entry;
915 struct dentry *ent;
916 int i;
917
918 dev_entry->hdev = hdev;
919 dev_entry->entry_arr = kmalloc_array(count,
920 sizeof(struct hl_debugfs_entry),
921 GFP_KERNEL);
922 if (!dev_entry->entry_arr)
923 return;
924
925 INIT_LIST_HEAD(&dev_entry->file_list);
926 INIT_LIST_HEAD(&dev_entry->cb_list);
927 INIT_LIST_HEAD(&dev_entry->cs_list);
928 INIT_LIST_HEAD(&dev_entry->cs_job_list);
929 INIT_LIST_HEAD(&dev_entry->userptr_list);
930 INIT_LIST_HEAD(&dev_entry->ctx_mem_hash_list);
931 mutex_init(&dev_entry->file_mutex);
932 spin_lock_init(&dev_entry->cb_spinlock);
933 spin_lock_init(&dev_entry->cs_spinlock);
934 spin_lock_init(&dev_entry->cs_job_spinlock);
935 spin_lock_init(&dev_entry->userptr_spinlock);
936 spin_lock_init(&dev_entry->ctx_mem_hash_spinlock);
937
938 dev_entry->root = debugfs_create_dir(dev_name(hdev->dev),
939 hl_debug_root);
940
941 debugfs_create_x64("addr",
942 0644,
943 dev_entry->root,
944 &dev_entry->addr);
945
946 debugfs_create_file("data32",
947 0644,
948 dev_entry->root,
949 dev_entry,
950 &hl_data32b_fops);
951
952 debugfs_create_file("set_power_state",
953 0200,
954 dev_entry->root,
955 dev_entry,
956 &hl_power_fops);
957
958 debugfs_create_u8("i2c_bus",
959 0644,
960 dev_entry->root,
961 &dev_entry->i2c_bus);
962
963 debugfs_create_u8("i2c_addr",
964 0644,
965 dev_entry->root,
966 &dev_entry->i2c_addr);
967
968 debugfs_create_u8("i2c_reg",
969 0644,
970 dev_entry->root,
971 &dev_entry->i2c_reg);
972
973 debugfs_create_file("i2c_data",
974 0644,
975 dev_entry->root,
976 dev_entry,
977 &hl_i2c_data_fops);
978
979 debugfs_create_file("led0",
980 0200,
981 dev_entry->root,
982 dev_entry,
983 &hl_led0_fops);
984
985 debugfs_create_file("led1",
986 0200,
987 dev_entry->root,
988 dev_entry,
989 &hl_led1_fops);
990
991 debugfs_create_file("led2",
992 0200,
993 dev_entry->root,
994 dev_entry,
995 &hl_led2_fops);
996
997 debugfs_create_file("device",
998 0200,
999 dev_entry->root,
1000 dev_entry,
1001 &hl_device_fops);
1002
1003 for (i = 0, entry = dev_entry->entry_arr ; i < count ; i++, entry++) {
1004
1005 ent = debugfs_create_file(hl_debugfs_list[i].name,
1006 0444,
1007 dev_entry->root,
1008 entry,
1009 &hl_debugfs_fops);
1010 entry->dent = ent;
1011 entry->info_ent = &hl_debugfs_list[i];
1012 entry->dev_entry = dev_entry;
1013 }
1014}
1015
1016void hl_debugfs_remove_device(struct hl_device *hdev)
1017{
1018 struct hl_dbg_device_entry *entry = &hdev->hl_debugfs;
1019
1020 debugfs_remove_recursive(entry->root);
1021
1022 mutex_destroy(&entry->file_mutex);
1023 kfree(entry->entry_arr);
1024}
1025
1026void hl_debugfs_add_file(struct hl_fpriv *hpriv)
1027{
1028 struct hl_dbg_device_entry *dev_entry = &hpriv->hdev->hl_debugfs;
1029
1030 mutex_lock(&dev_entry->file_mutex);
1031 list_add(&hpriv->debugfs_list, &dev_entry->file_list);
1032 mutex_unlock(&dev_entry->file_mutex);
1033}
1034
1035void hl_debugfs_remove_file(struct hl_fpriv *hpriv)
1036{
1037 struct hl_dbg_device_entry *dev_entry = &hpriv->hdev->hl_debugfs;
1038
1039 mutex_lock(&dev_entry->file_mutex);
1040 list_del(&hpriv->debugfs_list);
1041 mutex_unlock(&dev_entry->file_mutex);
1042}
1043
1044void hl_debugfs_add_cb(struct hl_cb *cb)
1045{
1046 struct hl_dbg_device_entry *dev_entry = &cb->hdev->hl_debugfs;
1047
1048 spin_lock(&dev_entry->cb_spinlock);
1049 list_add(&cb->debugfs_list, &dev_entry->cb_list);
1050 spin_unlock(&dev_entry->cb_spinlock);
1051}
1052
1053void hl_debugfs_remove_cb(struct hl_cb *cb)
1054{
1055 struct hl_dbg_device_entry *dev_entry = &cb->hdev->hl_debugfs;
1056
1057 spin_lock(&dev_entry->cb_spinlock);
1058 list_del(&cb->debugfs_list);
1059 spin_unlock(&dev_entry->cb_spinlock);
1060}
1061
1062void hl_debugfs_add_cs(struct hl_cs *cs)
1063{
1064 struct hl_dbg_device_entry *dev_entry = &cs->ctx->hdev->hl_debugfs;
1065
1066 spin_lock(&dev_entry->cs_spinlock);
1067 list_add(&cs->debugfs_list, &dev_entry->cs_list);
1068 spin_unlock(&dev_entry->cs_spinlock);
1069}
1070
1071void hl_debugfs_remove_cs(struct hl_cs *cs)
1072{
1073 struct hl_dbg_device_entry *dev_entry = &cs->ctx->hdev->hl_debugfs;
1074
1075 spin_lock(&dev_entry->cs_spinlock);
1076 list_del(&cs->debugfs_list);
1077 spin_unlock(&dev_entry->cs_spinlock);
1078}
1079
1080void hl_debugfs_add_job(struct hl_device *hdev, struct hl_cs_job *job)
1081{
1082 struct hl_dbg_device_entry *dev_entry = &hdev->hl_debugfs;
1083
1084 spin_lock(&dev_entry->cs_job_spinlock);
1085 list_add(&job->debugfs_list, &dev_entry->cs_job_list);
1086 spin_unlock(&dev_entry->cs_job_spinlock);
1087}
1088
1089void hl_debugfs_remove_job(struct hl_device *hdev, struct hl_cs_job *job)
1090{
1091 struct hl_dbg_device_entry *dev_entry = &hdev->hl_debugfs;
1092
1093 spin_lock(&dev_entry->cs_job_spinlock);
1094 list_del(&job->debugfs_list);
1095 spin_unlock(&dev_entry->cs_job_spinlock);
1096}
1097
1098void hl_debugfs_add_userptr(struct hl_device *hdev, struct hl_userptr *userptr)
1099{
1100 struct hl_dbg_device_entry *dev_entry = &hdev->hl_debugfs;
1101
1102 spin_lock(&dev_entry->userptr_spinlock);
1103 list_add(&userptr->debugfs_list, &dev_entry->userptr_list);
1104 spin_unlock(&dev_entry->userptr_spinlock);
1105}
1106
1107void hl_debugfs_remove_userptr(struct hl_device *hdev,
1108 struct hl_userptr *userptr)
1109{
1110 struct hl_dbg_device_entry *dev_entry = &hdev->hl_debugfs;
1111
1112 spin_lock(&dev_entry->userptr_spinlock);
1113 list_del(&userptr->debugfs_list);
1114 spin_unlock(&dev_entry->userptr_spinlock);
1115}
1116
1117void hl_debugfs_add_ctx_mem_hash(struct hl_device *hdev, struct hl_ctx *ctx)
1118{
1119 struct hl_dbg_device_entry *dev_entry = &hdev->hl_debugfs;
1120
1121 spin_lock(&dev_entry->ctx_mem_hash_spinlock);
1122 list_add(&ctx->debugfs_list, &dev_entry->ctx_mem_hash_list);
1123 spin_unlock(&dev_entry->ctx_mem_hash_spinlock);
1124}
1125
1126void hl_debugfs_remove_ctx_mem_hash(struct hl_device *hdev, struct hl_ctx *ctx)
1127{
1128 struct hl_dbg_device_entry *dev_entry = &hdev->hl_debugfs;
1129
1130 spin_lock(&dev_entry->ctx_mem_hash_spinlock);
1131 list_del(&ctx->debugfs_list);
1132 spin_unlock(&dev_entry->ctx_mem_hash_spinlock);
1133}
1134
1135void __init hl_debugfs_init(void)
1136{
1137 hl_debug_root = debugfs_create_dir("habanalabs", NULL);
1138}
1139
1140void hl_debugfs_fini(void)
1141{
1142 debugfs_remove_recursive(hl_debug_root);
1143}
1144
