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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/uaccess.h>
13#include <linux/vmalloc.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, long *val)
23{
24 struct cpucp_packet pkt;
25 u64 result;
26 int rc;
27
28 if (!hl_device_operational(hdev, NULL))
29 return -EBUSY;
30
31 memset(&pkt, 0, sizeof(pkt));
32
33 pkt.ctl = cpu_to_le32(CPUCP_PACKET_I2C_RD <<
34 CPUCP_PKT_CTL_OPCODE_SHIFT);
35 pkt.i2c_bus = i2c_bus;
36 pkt.i2c_addr = i2c_addr;
37 pkt.i2c_reg = i2c_reg;
38
39 rc = hdev->asic_funcs->send_cpu_message(hdev, (u32 *) &pkt, sizeof(pkt),
40 0, &result);
41
42 *val = (long) result;
43
44 if (rc)
45 dev_err(hdev->dev, "Failed to read from I2C, error %d\n", rc);
46
47 return rc;
48}
49
50static int hl_debugfs_i2c_write(struct hl_device *hdev, u8 i2c_bus, u8 i2c_addr,
51 u8 i2c_reg, u32 val)
52{
53 struct cpucp_packet pkt;
54 int rc;
55
56 if (!hl_device_operational(hdev, NULL))
57 return -EBUSY;
58
59 memset(&pkt, 0, sizeof(pkt));
60
61 pkt.ctl = cpu_to_le32(CPUCP_PACKET_I2C_WR <<
62 CPUCP_PKT_CTL_OPCODE_SHIFT);
63 pkt.i2c_bus = i2c_bus;
64 pkt.i2c_addr = i2c_addr;
65 pkt.i2c_reg = i2c_reg;
66 pkt.value = cpu_to_le64(val);
67
68 rc = hdev->asic_funcs->send_cpu_message(hdev, (u32 *) &pkt, sizeof(pkt),
69 0, NULL);
70
71 if (rc)
72 dev_err(hdev->dev, "Failed to write to I2C, error %d\n", rc);
73
74 return rc;
75}
76
77static void hl_debugfs_led_set(struct hl_device *hdev, u8 led, u8 state)
78{
79 struct cpucp_packet pkt;
80 int rc;
81
82 if (!hl_device_operational(hdev, NULL))
83 return;
84
85 memset(&pkt, 0, sizeof(pkt));
86
87 pkt.ctl = cpu_to_le32(CPUCP_PACKET_LED_SET <<
88 CPUCP_PKT_CTL_OPCODE_SHIFT);
89 pkt.led_index = cpu_to_le32(led);
90 pkt.value = cpu_to_le64(state);
91
92 rc = hdev->asic_funcs->send_cpu_message(hdev, (u32 *) &pkt, sizeof(pkt),
93 0, NULL);
94
95 if (rc)
96 dev_err(hdev->dev, "Failed to set LED %d, error %d\n", led, rc);
97}
98
99static int command_buffers_show(struct seq_file *s, void *data)
100{
101 struct hl_debugfs_entry *entry = s->private;
102 struct hl_dbg_device_entry *dev_entry = entry->dev_entry;
103 struct hl_cb *cb;
104 bool first = true;
105
106 spin_lock(&dev_entry->cb_spinlock);
107
108 list_for_each_entry(cb, &dev_entry->cb_list, debugfs_list) {
109 if (first) {
110 first = false;
111 seq_puts(s, "\n");
112 seq_puts(s, " CB ID CTX ID CB size CB RefCnt mmap? CS counter\n");
113 seq_puts(s, "---------------------------------------------------------------\n");
114 }
115 seq_printf(s,
116 " %03llu %d 0x%08x %d %d %d\n",
117 cb->id, cb->ctx->asid, cb->size,
118 kref_read(&cb->refcount),
119 cb->mmap, atomic_read(&cb->cs_cnt));
120 }
121
122 spin_unlock(&dev_entry->cb_spinlock);
123
124 if (!first)
125 seq_puts(s, "\n");
126
127 return 0;
128}
129
130static int command_submission_show(struct seq_file *s, void *data)
131{
132 struct hl_debugfs_entry *entry = s->private;
133 struct hl_dbg_device_entry *dev_entry = entry->dev_entry;
134 struct hl_cs *cs;
135 bool first = true;
136
137 spin_lock(&dev_entry->cs_spinlock);
138
139 list_for_each_entry(cs, &dev_entry->cs_list, debugfs_list) {
140 if (first) {
141 first = false;
142 seq_puts(s, "\n");
143 seq_puts(s, " CS ID CTX ASID CS RefCnt Submitted Completed\n");
144 seq_puts(s, "------------------------------------------------------\n");
145 }
146 seq_printf(s,
147 " %llu %d %d %d %d\n",
148 cs->sequence, cs->ctx->asid,
149 kref_read(&cs->refcount),
150 cs->submitted, cs->completed);
151 }
152
153 spin_unlock(&dev_entry->cs_spinlock);
154
155 if (!first)
156 seq_puts(s, "\n");
157
158 return 0;
159}
160
161static int command_submission_jobs_show(struct seq_file *s, void *data)
162{
163 struct hl_debugfs_entry *entry = s->private;
164 struct hl_dbg_device_entry *dev_entry = entry->dev_entry;
165 struct hl_cs_job *job;
166 bool first = true;
167
168 spin_lock(&dev_entry->cs_job_spinlock);
169
170 list_for_each_entry(job, &dev_entry->cs_job_list, debugfs_list) {
171 if (first) {
172 first = false;
173 seq_puts(s, "\n");
174 seq_puts(s, " JOB ID CS ID CTX ASID JOB RefCnt H/W Queue\n");
175 seq_puts(s, "----------------------------------------------------\n");
176 }
177 if (job->cs)
178 seq_printf(s,
179 " %02d %llu %d %d %d\n",
180 job->id, job->cs->sequence, job->cs->ctx->asid,
181 kref_read(&job->refcount), job->hw_queue_id);
182 else
183 seq_printf(s,
184 " %02d 0 %d %d %d\n",
185 job->id, HL_KERNEL_ASID_ID,
186 kref_read(&job->refcount), job->hw_queue_id);
187 }
188
189 spin_unlock(&dev_entry->cs_job_spinlock);
190
191 if (!first)
192 seq_puts(s, "\n");
193
194 return 0;
195}
196
197static int userptr_show(struct seq_file *s, void *data)
198{
199 struct hl_debugfs_entry *entry = s->private;
200 struct hl_dbg_device_entry *dev_entry = entry->dev_entry;
201 struct hl_userptr *userptr;
202 char dma_dir[4][30] = {"DMA_BIDIRECTIONAL", "DMA_TO_DEVICE",
203 "DMA_FROM_DEVICE", "DMA_NONE"};
204 bool first = true;
205
206 spin_lock(&dev_entry->userptr_spinlock);
207
208 list_for_each_entry(userptr, &dev_entry->userptr_list, debugfs_list) {
209 if (first) {
210 first = false;
211 seq_puts(s, "\n");
212 seq_puts(s, " user virtual address size dma dir\n");
213 seq_puts(s, "----------------------------------------------------------\n");
214 }
215 seq_printf(s,
216 " 0x%-14llx %-10u %-30s\n",
217 userptr->addr, userptr->size, dma_dir[userptr->dir]);
218 }
219
220 spin_unlock(&dev_entry->userptr_spinlock);
221
222 if (!first)
223 seq_puts(s, "\n");
224
225 return 0;
226}
227
228static int vm_show(struct seq_file *s, void *data)
229{
230 struct hl_debugfs_entry *entry = s->private;
231 struct hl_dbg_device_entry *dev_entry = entry->dev_entry;
232 struct hl_vm_hw_block_list_node *lnode;
233 struct hl_ctx *ctx;
234 struct hl_vm *vm;
235 struct hl_vm_hash_node *hnode;
236 struct hl_userptr *userptr;
237 struct hl_vm_phys_pg_pack *phys_pg_pack = NULL;
238 enum vm_type_t *vm_type;
239 bool once = true;
240 u64 j;
241 int i;
242
243 if (!dev_entry->hdev->mmu_enable)
244 return 0;
245
246 spin_lock(&dev_entry->ctx_mem_hash_spinlock);
247
248 list_for_each_entry(ctx, &dev_entry->ctx_mem_hash_list, debugfs_list) {
249 once = false;
250 seq_puts(s, "\n\n----------------------------------------------------");
251 seq_puts(s, "\n----------------------------------------------------\n\n");
252 seq_printf(s, "ctx asid: %u\n", ctx->asid);
253
254 seq_puts(s, "\nmappings:\n\n");
255 seq_puts(s, " virtual address size handle\n");
256 seq_puts(s, "----------------------------------------------------\n");
257 mutex_lock(&ctx->mem_hash_lock);
258 hash_for_each(ctx->mem_hash, i, hnode, node) {
259 vm_type = hnode->ptr;
260
261 if (*vm_type == VM_TYPE_USERPTR) {
262 userptr = hnode->ptr;
263 seq_printf(s,
264 " 0x%-14llx %-10u\n",
265 hnode->vaddr, userptr->size);
266 } else {
267 phys_pg_pack = hnode->ptr;
268 seq_printf(s,
269 " 0x%-14llx %-10llu %-4u\n",
270 hnode->vaddr, phys_pg_pack->total_size,
271 phys_pg_pack->handle);
272 }
273 }
274 mutex_unlock(&ctx->mem_hash_lock);
275
276 if (ctx->asid != HL_KERNEL_ASID_ID &&
277 !list_empty(&ctx->hw_block_mem_list)) {
278 seq_puts(s, "\nhw_block mappings:\n\n");
279 seq_puts(s, " virtual address size HW block id\n");
280 seq_puts(s, "-------------------------------------------\n");
281 mutex_lock(&ctx->hw_block_list_lock);
282 list_for_each_entry(lnode, &ctx->hw_block_mem_list,
283 node) {
284 seq_printf(s,
285 " 0x%-14lx %-6u %-9u\n",
286 lnode->vaddr, lnode->size, lnode->id);
287 }
288 mutex_unlock(&ctx->hw_block_list_lock);
289 }
290
291 vm = &ctx->hdev->vm;
292 spin_lock(&vm->idr_lock);
293
294 if (!idr_is_empty(&vm->phys_pg_pack_handles))
295 seq_puts(s, "\n\nallocations:\n");
296
297 idr_for_each_entry(&vm->phys_pg_pack_handles, phys_pg_pack, i) {
298 if (phys_pg_pack->asid != ctx->asid)
299 continue;
300
301 seq_printf(s, "\nhandle: %u\n", phys_pg_pack->handle);
302 seq_printf(s, "page size: %u\n\n",
303 phys_pg_pack->page_size);
304 seq_puts(s, " physical address\n");
305 seq_puts(s, "---------------------\n");
306 for (j = 0 ; j < phys_pg_pack->npages ; j++) {
307 seq_printf(s, " 0x%-14llx\n",
308 phys_pg_pack->pages[j]);
309 }
310 }
311 spin_unlock(&vm->idr_lock);
312
313 }
314
315 spin_unlock(&dev_entry->ctx_mem_hash_spinlock);
316
317 if (!once)
318 seq_puts(s, "\n");
319
320 return 0;
321}
322
323static int mmu_show(struct seq_file *s, void *data)
324{
325 struct hl_debugfs_entry *entry = s->private;
326 struct hl_dbg_device_entry *dev_entry = entry->dev_entry;
327 struct hl_device *hdev = dev_entry->hdev;
328 struct hl_ctx *ctx;
329 struct hl_mmu_hop_info hops_info = {0};
330 u64 virt_addr = dev_entry->mmu_addr, phys_addr;
331 int i;
332
333 if (!hdev->mmu_enable)
334 return 0;
335
336 if (dev_entry->mmu_asid == HL_KERNEL_ASID_ID)
337 ctx = hdev->kernel_ctx;
338 else
339 ctx = hdev->compute_ctx;
340
341 if (!ctx) {
342 dev_err(hdev->dev, "no ctx available\n");
343 return 0;
344 }
345
346 if (hl_mmu_get_tlb_info(ctx, virt_addr, &hops_info)) {
347 dev_err(hdev->dev, "virt addr 0x%llx is not mapped to phys addr\n",
348 virt_addr);
349 return 0;
350 }
351
352 phys_addr = hops_info.hop_info[hops_info.used_hops - 1].hop_pte_val;
353
354 if (hops_info.scrambled_vaddr &&
355 (dev_entry->mmu_addr != hops_info.scrambled_vaddr))
356 seq_printf(s,
357 "asid: %u, virt_addr: 0x%llx, scrambled virt_addr: 0x%llx,\nphys_addr: 0x%llx, scrambled_phys_addr: 0x%llx\n",
358 dev_entry->mmu_asid, dev_entry->mmu_addr,
359 hops_info.scrambled_vaddr,
360 hops_info.unscrambled_paddr, phys_addr);
361 else
362 seq_printf(s,
363 "asid: %u, virt_addr: 0x%llx, phys_addr: 0x%llx\n",
364 dev_entry->mmu_asid, dev_entry->mmu_addr, phys_addr);
365
366 for (i = 0 ; i < hops_info.used_hops ; i++) {
367 seq_printf(s, "hop%d_addr: 0x%llx\n",
368 i, hops_info.hop_info[i].hop_addr);
369 seq_printf(s, "hop%d_pte_addr: 0x%llx\n",
370 i, hops_info.hop_info[i].hop_pte_addr);
371 seq_printf(s, "hop%d_pte: 0x%llx\n",
372 i, hops_info.hop_info[i].hop_pte_val);
373 }
374
375 return 0;
376}
377
378static ssize_t mmu_asid_va_write(struct file *file, const char __user *buf,
379 size_t count, loff_t *f_pos)
380{
381 struct seq_file *s = file->private_data;
382 struct hl_debugfs_entry *entry = s->private;
383 struct hl_dbg_device_entry *dev_entry = entry->dev_entry;
384 struct hl_device *hdev = dev_entry->hdev;
385 char kbuf[MMU_KBUF_SIZE];
386 char *c;
387 ssize_t rc;
388
389 if (!hdev->mmu_enable)
390 return count;
391
392 if (count > sizeof(kbuf) - 1)
393 goto err;
394 if (copy_from_user(kbuf, buf, count))
395 goto err;
396 kbuf[count] = 0;
397
398 c = strchr(kbuf, ' ');
399 if (!c)
400 goto err;
401 *c = '\0';
402
403 rc = kstrtouint(kbuf, 10, &dev_entry->mmu_asid);
404 if (rc)
405 goto err;
406
407 if (strncmp(c+1, "0x", 2))
408 goto err;
409 rc = kstrtoull(c+3, 16, &dev_entry->mmu_addr);
410 if (rc)
411 goto err;
412
413 return count;
414
415err:
416 dev_err(hdev->dev, "usage: echo <asid> <0xaddr> > mmu\n");
417
418 return -EINVAL;
419}
420
421static int engines_show(struct seq_file *s, void *data)
422{
423 struct hl_debugfs_entry *entry = s->private;
424 struct hl_dbg_device_entry *dev_entry = entry->dev_entry;
425 struct hl_device *hdev = dev_entry->hdev;
426
427 if (atomic_read(&hdev->in_reset)) {
428 dev_warn_ratelimited(hdev->dev,
429 "Can't check device idle during reset\n");
430 return 0;
431 }
432
433 hdev->asic_funcs->is_device_idle(hdev, NULL, 0, s);
434
435 return 0;
436}
437
438static bool hl_is_device_va(struct hl_device *hdev, u64 addr)
439{
440 struct asic_fixed_properties *prop = &hdev->asic_prop;
441
442 if (!hdev->mmu_enable)
443 goto out;
444
445 if (prop->dram_supports_virtual_memory &&
446 (addr >= prop->dmmu.start_addr && addr < prop->dmmu.end_addr))
447 return true;
448
449 if (addr >= prop->pmmu.start_addr &&
450 addr < prop->pmmu.end_addr)
451 return true;
452
453 if (addr >= prop->pmmu_huge.start_addr &&
454 addr < prop->pmmu_huge.end_addr)
455 return true;
456out:
457 return false;
458}
459
460static bool hl_is_device_internal_memory_va(struct hl_device *hdev, u64 addr,
461 u32 size)
462{
463 struct asic_fixed_properties *prop = &hdev->asic_prop;
464 u64 dram_start_addr, dram_end_addr;
465
466 if (!hdev->mmu_enable)
467 return false;
468
469 if (prop->dram_supports_virtual_memory) {
470 dram_start_addr = prop->dmmu.start_addr;
471 dram_end_addr = prop->dmmu.end_addr;
472 } else {
473 dram_start_addr = prop->dram_base_address;
474 dram_end_addr = prop->dram_end_address;
475 }
476
477 if (hl_mem_area_inside_range(addr, size, dram_start_addr,
478 dram_end_addr))
479 return true;
480
481 if (hl_mem_area_inside_range(addr, size, prop->sram_base_address,
482 prop->sram_end_address))
483 return true;
484
485 return false;
486}
487
488static int device_va_to_pa(struct hl_device *hdev, u64 virt_addr, u32 size,
489 u64 *phys_addr)
490{
491 struct hl_vm_phys_pg_pack *phys_pg_pack;
492 struct hl_ctx *ctx = hdev->compute_ctx;
493 struct hl_vm_hash_node *hnode;
494 struct hl_userptr *userptr;
495 enum vm_type_t *vm_type;
496 bool valid = false;
497 u64 end_address;
498 u32 range_size;
499 int i, rc = 0;
500
501 if (!ctx) {
502 dev_err(hdev->dev, "no ctx available\n");
503 return -EINVAL;
504 }
505
506
507 mutex_lock(&ctx->mem_hash_lock);
508 hash_for_each(ctx->mem_hash, i, hnode, node) {
509 vm_type = hnode->ptr;
510
511 if (*vm_type == VM_TYPE_USERPTR) {
512 userptr = hnode->ptr;
513 range_size = userptr->size;
514 } else {
515 phys_pg_pack = hnode->ptr;
516 range_size = phys_pg_pack->total_size;
517 }
518
519 end_address = virt_addr + size;
520 if ((virt_addr >= hnode->vaddr) &&
521 (end_address <= hnode->vaddr + range_size)) {
522 valid = true;
523 break;
524 }
525 }
526 mutex_unlock(&ctx->mem_hash_lock);
527
528 if (!valid) {
529 dev_err(hdev->dev,
530 "virt addr 0x%llx is not mapped\n",
531 virt_addr);
532 return -EINVAL;
533 }
534
535 rc = hl_mmu_va_to_pa(ctx, virt_addr, phys_addr);
536 if (rc) {
537 dev_err(hdev->dev,
538 "virt addr 0x%llx is not mapped to phys addr\n",
539 virt_addr);
540 rc = -EINVAL;
541 }
542
543 return rc;
544}
545
546static ssize_t hl_data_read32(struct file *f, char __user *buf,
547 size_t count, loff_t *ppos)
548{
549 struct hl_dbg_device_entry *entry = file_inode(f)->i_private;
550 struct hl_device *hdev = entry->hdev;
551 u64 addr = entry->addr;
552 bool user_address;
553 char tmp_buf[32];
554 ssize_t rc;
555 u32 val;
556
557 if (atomic_read(&hdev->in_reset)) {
558 dev_warn_ratelimited(hdev->dev, "Can't read during reset\n");
559 return 0;
560 }
561
562 if (*ppos)
563 return 0;
564
565 user_address = hl_is_device_va(hdev, addr);
566 if (user_address) {
567 rc = device_va_to_pa(hdev, addr, sizeof(val), &addr);
568 if (rc)
569 return rc;
570 }
571
572 rc = hdev->asic_funcs->debugfs_read32(hdev, addr, user_address, &val);
573 if (rc) {
574 dev_err(hdev->dev, "Failed to read from 0x%010llx\n", addr);
575 return rc;
576 }
577
578 sprintf(tmp_buf, "0x%08x\n", val);
579 return simple_read_from_buffer(buf, count, ppos, tmp_buf,
580 strlen(tmp_buf));
581}
582
583static ssize_t hl_data_write32(struct file *f, const char __user *buf,
584 size_t count, loff_t *ppos)
585{
586 struct hl_dbg_device_entry *entry = file_inode(f)->i_private;
587 struct hl_device *hdev = entry->hdev;
588 u64 addr = entry->addr;
589 bool user_address;
590 u32 value;
591 ssize_t rc;
592
593 if (atomic_read(&hdev->in_reset)) {
594 dev_warn_ratelimited(hdev->dev, "Can't write during reset\n");
595 return 0;
596 }
597
598 rc = kstrtouint_from_user(buf, count, 16, &value);
599 if (rc)
600 return rc;
601
602 user_address = hl_is_device_va(hdev, addr);
603 if (user_address) {
604 rc = device_va_to_pa(hdev, addr, sizeof(value), &addr);
605 if (rc)
606 return rc;
607 }
608
609 rc = hdev->asic_funcs->debugfs_write32(hdev, addr, user_address, value);
610 if (rc) {
611 dev_err(hdev->dev, "Failed to write 0x%08x to 0x%010llx\n",
612 value, addr);
613 return rc;
614 }
615
616 return count;
617}
618
619static ssize_t hl_data_read64(struct file *f, char __user *buf,
620 size_t count, loff_t *ppos)
621{
622 struct hl_dbg_device_entry *entry = file_inode(f)->i_private;
623 struct hl_device *hdev = entry->hdev;
624 u64 addr = entry->addr;
625 bool user_address;
626 char tmp_buf[32];
627 ssize_t rc;
628 u64 val;
629
630 if (atomic_read(&hdev->in_reset)) {
631 dev_warn_ratelimited(hdev->dev, "Can't read during reset\n");
632 return 0;
633 }
634
635 if (*ppos)
636 return 0;
637
638 user_address = hl_is_device_va(hdev, addr);
639 if (user_address) {
640 rc = device_va_to_pa(hdev, addr, sizeof(val), &addr);
641 if (rc)
642 return rc;
643 }
644
645 rc = hdev->asic_funcs->debugfs_read64(hdev, addr, user_address, &val);
646 if (rc) {
647 dev_err(hdev->dev, "Failed to read from 0x%010llx\n", addr);
648 return rc;
649 }
650
651 sprintf(tmp_buf, "0x%016llx\n", val);
652 return simple_read_from_buffer(buf, count, ppos, tmp_buf,
653 strlen(tmp_buf));
654}
655
656static ssize_t hl_data_write64(struct file *f, const char __user *buf,
657 size_t count, loff_t *ppos)
658{
659 struct hl_dbg_device_entry *entry = file_inode(f)->i_private;
660 struct hl_device *hdev = entry->hdev;
661 u64 addr = entry->addr;
662 bool user_address;
663 u64 value;
664 ssize_t rc;
665
666 if (atomic_read(&hdev->in_reset)) {
667 dev_warn_ratelimited(hdev->dev, "Can't write during reset\n");
668 return 0;
669 }
670
671 rc = kstrtoull_from_user(buf, count, 16, &value);
672 if (rc)
673 return rc;
674
675 user_address = hl_is_device_va(hdev, addr);
676 if (user_address) {
677 rc = device_va_to_pa(hdev, addr, sizeof(value), &addr);
678 if (rc)
679 return rc;
680 }
681
682 rc = hdev->asic_funcs->debugfs_write64(hdev, addr, user_address, value);
683 if (rc) {
684 dev_err(hdev->dev, "Failed to write 0x%016llx to 0x%010llx\n",
685 value, addr);
686 return rc;
687 }
688
689 return count;
690}
691
692static ssize_t hl_dma_size_write(struct file *f, const char __user *buf,
693 size_t count, loff_t *ppos)
694{
695 struct hl_dbg_device_entry *entry = file_inode(f)->i_private;
696 struct hl_device *hdev = entry->hdev;
697 u64 addr = entry->addr;
698 ssize_t rc;
699 u32 size;
700
701 if (atomic_read(&hdev->in_reset)) {
702 dev_warn_ratelimited(hdev->dev, "Can't DMA during reset\n");
703 return 0;
704 }
705 rc = kstrtouint_from_user(buf, count, 16, &size);
706 if (rc)
707 return rc;
708
709 if (!size) {
710 dev_err(hdev->dev, "DMA read failed. size can't be 0\n");
711 return -EINVAL;
712 }
713
714 if (size > SZ_128M) {
715 dev_err(hdev->dev,
716 "DMA read failed. size can't be larger than 128MB\n");
717 return -EINVAL;
718 }
719
720 if (!hl_is_device_internal_memory_va(hdev, addr, size)) {
721 dev_err(hdev->dev,
722 "DMA read failed. Invalid 0x%010llx + 0x%08x\n",
723 addr, size);
724 return -EINVAL;
725 }
726
727
728 entry->blob_desc.size = 0;
729 vfree(entry->blob_desc.data);
730
731 entry->blob_desc.data = vmalloc(size);
732 if (!entry->blob_desc.data)
733 return -ENOMEM;
734
735 rc = hdev->asic_funcs->debugfs_read_dma(hdev, addr, size,
736 entry->blob_desc.data);
737 if (rc) {
738 dev_err(hdev->dev, "Failed to DMA from 0x%010llx\n", addr);
739 vfree(entry->blob_desc.data);
740 entry->blob_desc.data = NULL;
741 return -EIO;
742 }
743
744 entry->blob_desc.size = size;
745
746 return count;
747}
748
749static ssize_t hl_get_power_state(struct file *f, char __user *buf,
750 size_t count, loff_t *ppos)
751{
752 struct hl_dbg_device_entry *entry = file_inode(f)->i_private;
753 struct hl_device *hdev = entry->hdev;
754 char tmp_buf[200];
755 int i;
756
757 if (*ppos)
758 return 0;
759
760 if (hdev->pdev->current_state == PCI_D0)
761 i = 1;
762 else if (hdev->pdev->current_state == PCI_D3hot)
763 i = 2;
764 else
765 i = 3;
766
767 sprintf(tmp_buf,
768 "current power state: %d\n1 - D0\n2 - D3hot\n3 - Unknown\n", i);
769 return simple_read_from_buffer(buf, count, ppos, tmp_buf,
770 strlen(tmp_buf));
771}
772
773static ssize_t hl_set_power_state(struct file *f, const char __user *buf,
774 size_t count, loff_t *ppos)
775{
776 struct hl_dbg_device_entry *entry = file_inode(f)->i_private;
777 struct hl_device *hdev = entry->hdev;
778 u32 value;
779 ssize_t rc;
780
781 rc = kstrtouint_from_user(buf, count, 10, &value);
782 if (rc)
783 return rc;
784
785 if (value == 1) {
786 pci_set_power_state(hdev->pdev, PCI_D0);
787 pci_restore_state(hdev->pdev);
788 rc = pci_enable_device(hdev->pdev);
789 } else if (value == 2) {
790 pci_save_state(hdev->pdev);
791 pci_disable_device(hdev->pdev);
792 pci_set_power_state(hdev->pdev, PCI_D3hot);
793 } else {
794 dev_dbg(hdev->dev, "invalid power state value %u\n", value);
795 return -EINVAL;
796 }
797
798 return count;
799}
800
801static ssize_t hl_i2c_data_read(struct file *f, char __user *buf,
802 size_t count, loff_t *ppos)
803{
804 struct hl_dbg_device_entry *entry = file_inode(f)->i_private;
805 struct hl_device *hdev = entry->hdev;
806 char tmp_buf[32];
807 long val;
808 ssize_t rc;
809
810 if (*ppos)
811 return 0;
812
813 rc = hl_debugfs_i2c_read(hdev, entry->i2c_bus, entry->i2c_addr,
814 entry->i2c_reg, &val);
815 if (rc) {
816 dev_err(hdev->dev,
817 "Failed to read from I2C bus %d, addr %d, reg %d\n",
818 entry->i2c_bus, entry->i2c_addr, entry->i2c_reg);
819 return rc;
820 }
821
822 sprintf(tmp_buf, "0x%02lx\n", val);
823 rc = simple_read_from_buffer(buf, count, ppos, tmp_buf,
824 strlen(tmp_buf));
825
826 return rc;
827}
828
829static ssize_t hl_i2c_data_write(struct file *f, const char __user *buf,
830 size_t count, loff_t *ppos)
831{
832 struct hl_dbg_device_entry *entry = file_inode(f)->i_private;
833 struct hl_device *hdev = entry->hdev;
834 u32 value;
835 ssize_t rc;
836
837 rc = kstrtouint_from_user(buf, count, 16, &value);
838 if (rc)
839 return rc;
840
841 rc = hl_debugfs_i2c_write(hdev, entry->i2c_bus, entry->i2c_addr,
842 entry->i2c_reg, value);
843 if (rc) {
844 dev_err(hdev->dev,
845 "Failed to write 0x%02x to I2C bus %d, addr %d, reg %d\n",
846 value, entry->i2c_bus, entry->i2c_addr, entry->i2c_reg);
847 return rc;
848 }
849
850 return count;
851}
852
853static ssize_t hl_led0_write(struct file *f, const char __user *buf,
854 size_t count, loff_t *ppos)
855{
856 struct hl_dbg_device_entry *entry = file_inode(f)->i_private;
857 struct hl_device *hdev = entry->hdev;
858 u32 value;
859 ssize_t rc;
860
861 rc = kstrtouint_from_user(buf, count, 10, &value);
862 if (rc)
863 return rc;
864
865 value = value ? 1 : 0;
866
867 hl_debugfs_led_set(hdev, 0, value);
868
869 return count;
870}
871
872static ssize_t hl_led1_write(struct file *f, const char __user *buf,
873 size_t count, loff_t *ppos)
874{
875 struct hl_dbg_device_entry *entry = file_inode(f)->i_private;
876 struct hl_device *hdev = entry->hdev;
877 u32 value;
878 ssize_t rc;
879
880 rc = kstrtouint_from_user(buf, count, 10, &value);
881 if (rc)
882 return rc;
883
884 value = value ? 1 : 0;
885
886 hl_debugfs_led_set(hdev, 1, value);
887
888 return count;
889}
890
891static ssize_t hl_led2_write(struct file *f, const char __user *buf,
892 size_t count, loff_t *ppos)
893{
894 struct hl_dbg_device_entry *entry = file_inode(f)->i_private;
895 struct hl_device *hdev = entry->hdev;
896 u32 value;
897 ssize_t rc;
898
899 rc = kstrtouint_from_user(buf, count, 10, &value);
900 if (rc)
901 return rc;
902
903 value = value ? 1 : 0;
904
905 hl_debugfs_led_set(hdev, 2, value);
906
907 return count;
908}
909
910static ssize_t hl_device_read(struct file *f, char __user *buf,
911 size_t count, loff_t *ppos)
912{
913 static const char *help =
914 "Valid values: disable, enable, suspend, resume, cpu_timeout\n";
915 return simple_read_from_buffer(buf, count, ppos, help, strlen(help));
916}
917
918static ssize_t hl_device_write(struct file *f, const char __user *buf,
919 size_t count, loff_t *ppos)
920{
921 struct hl_dbg_device_entry *entry = file_inode(f)->i_private;
922 struct hl_device *hdev = entry->hdev;
923 char data[30] = {0};
924
925
926 if (*ppos != 0)
927 return 0;
928
929 simple_write_to_buffer(data, 29, ppos, buf, count);
930
931 if (strncmp("disable", data, strlen("disable")) == 0) {
932 hdev->disabled = true;
933 } else if (strncmp("enable", data, strlen("enable")) == 0) {
934 hdev->disabled = false;
935 } else if (strncmp("suspend", data, strlen("suspend")) == 0) {
936 hdev->asic_funcs->suspend(hdev);
937 } else if (strncmp("resume", data, strlen("resume")) == 0) {
938 hdev->asic_funcs->resume(hdev);
939 } else if (strncmp("cpu_timeout", data, strlen("cpu_timeout")) == 0) {
940 hdev->device_cpu_disabled = true;
941 } else {
942 dev_err(hdev->dev,
943 "Valid values: disable, enable, suspend, resume, cpu_timeout\n");
944 count = -EINVAL;
945 }
946
947 return count;
948}
949
950static ssize_t hl_clk_gate_read(struct file *f, char __user *buf,
951 size_t count, loff_t *ppos)
952{
953 struct hl_dbg_device_entry *entry = file_inode(f)->i_private;
954 struct hl_device *hdev = entry->hdev;
955 char tmp_buf[200];
956 ssize_t rc;
957
958 if (*ppos)
959 return 0;
960
961 sprintf(tmp_buf, "0x%llx\n", hdev->clock_gating_mask);
962 rc = simple_read_from_buffer(buf, count, ppos, tmp_buf,
963 strlen(tmp_buf) + 1);
964
965 return rc;
966}
967
968static ssize_t hl_clk_gate_write(struct file *f, const char __user *buf,
969 size_t count, loff_t *ppos)
970{
971 struct hl_dbg_device_entry *entry = file_inode(f)->i_private;
972 struct hl_device *hdev = entry->hdev;
973 u64 value;
974 ssize_t rc;
975
976 if (atomic_read(&hdev->in_reset)) {
977 dev_warn_ratelimited(hdev->dev,
978 "Can't change clock gating during reset\n");
979 return 0;
980 }
981
982 rc = kstrtoull_from_user(buf, count, 16, &value);
983 if (rc)
984 return rc;
985
986 hdev->clock_gating_mask = value;
987 hdev->asic_funcs->set_clock_gating(hdev);
988
989 return count;
990}
991
992static ssize_t hl_stop_on_err_read(struct file *f, char __user *buf,
993 size_t count, loff_t *ppos)
994{
995 struct hl_dbg_device_entry *entry = file_inode(f)->i_private;
996 struct hl_device *hdev = entry->hdev;
997 char tmp_buf[200];
998 ssize_t rc;
999
1000 if (*ppos)
1001 return 0;
1002
1003 sprintf(tmp_buf, "%d\n", hdev->stop_on_err);
1004 rc = simple_read_from_buffer(buf, strlen(tmp_buf) + 1, ppos, tmp_buf,
1005 strlen(tmp_buf) + 1);
1006
1007 return rc;
1008}
1009
1010static ssize_t hl_stop_on_err_write(struct file *f, const char __user *buf,
1011 size_t count, loff_t *ppos)
1012{
1013 struct hl_dbg_device_entry *entry = file_inode(f)->i_private;
1014 struct hl_device *hdev = entry->hdev;
1015 u32 value;
1016 ssize_t rc;
1017
1018 if (atomic_read(&hdev->in_reset)) {
1019 dev_warn_ratelimited(hdev->dev,
1020 "Can't change stop on error during reset\n");
1021 return 0;
1022 }
1023
1024 rc = kstrtouint_from_user(buf, count, 10, &value);
1025 if (rc)
1026 return rc;
1027
1028 hdev->stop_on_err = value ? 1 : 0;
1029
1030 hl_device_reset(hdev, 0);
1031
1032 return count;
1033}
1034
1035static ssize_t hl_security_violations_read(struct file *f, char __user *buf,
1036 size_t count, loff_t *ppos)
1037{
1038 struct hl_dbg_device_entry *entry = file_inode(f)->i_private;
1039 struct hl_device *hdev = entry->hdev;
1040
1041 hdev->asic_funcs->ack_protection_bits_errors(hdev);
1042
1043 return 0;
1044}
1045
1046static const struct file_operations hl_data32b_fops = {
1047 .owner = THIS_MODULE,
1048 .read = hl_data_read32,
1049 .write = hl_data_write32
1050};
1051
1052static const struct file_operations hl_data64b_fops = {
1053 .owner = THIS_MODULE,
1054 .read = hl_data_read64,
1055 .write = hl_data_write64
1056};
1057
1058static const struct file_operations hl_dma_size_fops = {
1059 .owner = THIS_MODULE,
1060 .write = hl_dma_size_write
1061};
1062
1063static const struct file_operations hl_i2c_data_fops = {
1064 .owner = THIS_MODULE,
1065 .read = hl_i2c_data_read,
1066 .write = hl_i2c_data_write
1067};
1068
1069static const struct file_operations hl_power_fops = {
1070 .owner = THIS_MODULE,
1071 .read = hl_get_power_state,
1072 .write = hl_set_power_state
1073};
1074
1075static const struct file_operations hl_led0_fops = {
1076 .owner = THIS_MODULE,
1077 .write = hl_led0_write
1078};
1079
1080static const struct file_operations hl_led1_fops = {
1081 .owner = THIS_MODULE,
1082 .write = hl_led1_write
1083};
1084
1085static const struct file_operations hl_led2_fops = {
1086 .owner = THIS_MODULE,
1087 .write = hl_led2_write
1088};
1089
1090static const struct file_operations hl_device_fops = {
1091 .owner = THIS_MODULE,
1092 .read = hl_device_read,
1093 .write = hl_device_write
1094};
1095
1096static const struct file_operations hl_clk_gate_fops = {
1097 .owner = THIS_MODULE,
1098 .read = hl_clk_gate_read,
1099 .write = hl_clk_gate_write
1100};
1101
1102static const struct file_operations hl_stop_on_err_fops = {
1103 .owner = THIS_MODULE,
1104 .read = hl_stop_on_err_read,
1105 .write = hl_stop_on_err_write
1106};
1107
1108static const struct file_operations hl_security_violations_fops = {
1109 .owner = THIS_MODULE,
1110 .read = hl_security_violations_read
1111};
1112
1113static const struct hl_info_list hl_debugfs_list[] = {
1114 {"command_buffers", command_buffers_show, NULL},
1115 {"command_submission", command_submission_show, NULL},
1116 {"command_submission_jobs", command_submission_jobs_show, NULL},
1117 {"userptr", userptr_show, NULL},
1118 {"vm", vm_show, NULL},
1119 {"mmu", mmu_show, mmu_asid_va_write},
1120 {"engines", engines_show, NULL}
1121};
1122
1123static int hl_debugfs_open(struct inode *inode, struct file *file)
1124{
1125 struct hl_debugfs_entry *node = inode->i_private;
1126
1127 return single_open(file, node->info_ent->show, node);
1128}
1129
1130static ssize_t hl_debugfs_write(struct file *file, const char __user *buf,
1131 size_t count, loff_t *f_pos)
1132{
1133 struct hl_debugfs_entry *node = file->f_inode->i_private;
1134
1135 if (node->info_ent->write)
1136 return node->info_ent->write(file, buf, count, f_pos);
1137 else
1138 return -EINVAL;
1139
1140}
1141
1142static const struct file_operations hl_debugfs_fops = {
1143 .owner = THIS_MODULE,
1144 .open = hl_debugfs_open,
1145 .read = seq_read,
1146 .write = hl_debugfs_write,
1147 .llseek = seq_lseek,
1148 .release = single_release,
1149};
1150
1151void hl_debugfs_add_device(struct hl_device *hdev)
1152{
1153 struct hl_dbg_device_entry *dev_entry = &hdev->hl_debugfs;
1154 int count = ARRAY_SIZE(hl_debugfs_list);
1155 struct hl_debugfs_entry *entry;
1156 int i;
1157
1158 dev_entry->hdev = hdev;
1159 dev_entry->entry_arr = kmalloc_array(count,
1160 sizeof(struct hl_debugfs_entry),
1161 GFP_KERNEL);
1162 if (!dev_entry->entry_arr)
1163 return;
1164
1165 dev_entry->blob_desc.size = 0;
1166 dev_entry->blob_desc.data = NULL;
1167
1168 INIT_LIST_HEAD(&dev_entry->file_list);
1169 INIT_LIST_HEAD(&dev_entry->cb_list);
1170 INIT_LIST_HEAD(&dev_entry->cs_list);
1171 INIT_LIST_HEAD(&dev_entry->cs_job_list);
1172 INIT_LIST_HEAD(&dev_entry->userptr_list);
1173 INIT_LIST_HEAD(&dev_entry->ctx_mem_hash_list);
1174 mutex_init(&dev_entry->file_mutex);
1175 spin_lock_init(&dev_entry->cb_spinlock);
1176 spin_lock_init(&dev_entry->cs_spinlock);
1177 spin_lock_init(&dev_entry->cs_job_spinlock);
1178 spin_lock_init(&dev_entry->userptr_spinlock);
1179 spin_lock_init(&dev_entry->ctx_mem_hash_spinlock);
1180
1181 dev_entry->root = debugfs_create_dir(dev_name(hdev->dev),
1182 hl_debug_root);
1183
1184 debugfs_create_x64("addr",
1185 0644,
1186 dev_entry->root,
1187 &dev_entry->addr);
1188
1189 debugfs_create_file("data32",
1190 0644,
1191 dev_entry->root,
1192 dev_entry,
1193 &hl_data32b_fops);
1194
1195 debugfs_create_file("data64",
1196 0644,
1197 dev_entry->root,
1198 dev_entry,
1199 &hl_data64b_fops);
1200
1201 debugfs_create_file("set_power_state",
1202 0200,
1203 dev_entry->root,
1204 dev_entry,
1205 &hl_power_fops);
1206
1207 debugfs_create_u8("i2c_bus",
1208 0644,
1209 dev_entry->root,
1210 &dev_entry->i2c_bus);
1211
1212 debugfs_create_u8("i2c_addr",
1213 0644,
1214 dev_entry->root,
1215 &dev_entry->i2c_addr);
1216
1217 debugfs_create_u8("i2c_reg",
1218 0644,
1219 dev_entry->root,
1220 &dev_entry->i2c_reg);
1221
1222 debugfs_create_file("i2c_data",
1223 0644,
1224 dev_entry->root,
1225 dev_entry,
1226 &hl_i2c_data_fops);
1227
1228 debugfs_create_file("led0",
1229 0200,
1230 dev_entry->root,
1231 dev_entry,
1232 &hl_led0_fops);
1233
1234 debugfs_create_file("led1",
1235 0200,
1236 dev_entry->root,
1237 dev_entry,
1238 &hl_led1_fops);
1239
1240 debugfs_create_file("led2",
1241 0200,
1242 dev_entry->root,
1243 dev_entry,
1244 &hl_led2_fops);
1245
1246 debugfs_create_file("device",
1247 0200,
1248 dev_entry->root,
1249 dev_entry,
1250 &hl_device_fops);
1251
1252 debugfs_create_file("clk_gate",
1253 0200,
1254 dev_entry->root,
1255 dev_entry,
1256 &hl_clk_gate_fops);
1257
1258 debugfs_create_file("stop_on_err",
1259 0644,
1260 dev_entry->root,
1261 dev_entry,
1262 &hl_stop_on_err_fops);
1263
1264 debugfs_create_file("dump_security_violations",
1265 0644,
1266 dev_entry->root,
1267 dev_entry,
1268 &hl_security_violations_fops);
1269
1270 debugfs_create_file("dma_size",
1271 0200,
1272 dev_entry->root,
1273 dev_entry,
1274 &hl_dma_size_fops);
1275
1276 debugfs_create_blob("data_dma",
1277 0400,
1278 dev_entry->root,
1279 &dev_entry->blob_desc);
1280
1281 debugfs_create_x8("skip_reset_on_timeout",
1282 0644,
1283 dev_entry->root,
1284 &hdev->skip_reset_on_timeout);
1285
1286 for (i = 0, entry = dev_entry->entry_arr ; i < count ; i++, entry++) {
1287 debugfs_create_file(hl_debugfs_list[i].name,
1288 0444,
1289 dev_entry->root,
1290 entry,
1291 &hl_debugfs_fops);
1292 entry->info_ent = &hl_debugfs_list[i];
1293 entry->dev_entry = dev_entry;
1294 }
1295}
1296
1297void hl_debugfs_remove_device(struct hl_device *hdev)
1298{
1299 struct hl_dbg_device_entry *entry = &hdev->hl_debugfs;
1300
1301 debugfs_remove_recursive(entry->root);
1302
1303 mutex_destroy(&entry->file_mutex);
1304
1305 vfree(entry->blob_desc.data);
1306
1307 kfree(entry->entry_arr);
1308}
1309
1310void hl_debugfs_add_file(struct hl_fpriv *hpriv)
1311{
1312 struct hl_dbg_device_entry *dev_entry = &hpriv->hdev->hl_debugfs;
1313
1314 mutex_lock(&dev_entry->file_mutex);
1315 list_add(&hpriv->debugfs_list, &dev_entry->file_list);
1316 mutex_unlock(&dev_entry->file_mutex);
1317}
1318
1319void hl_debugfs_remove_file(struct hl_fpriv *hpriv)
1320{
1321 struct hl_dbg_device_entry *dev_entry = &hpriv->hdev->hl_debugfs;
1322
1323 mutex_lock(&dev_entry->file_mutex);
1324 list_del(&hpriv->debugfs_list);
1325 mutex_unlock(&dev_entry->file_mutex);
1326}
1327
1328void hl_debugfs_add_cb(struct hl_cb *cb)
1329{
1330 struct hl_dbg_device_entry *dev_entry = &cb->hdev->hl_debugfs;
1331
1332 spin_lock(&dev_entry->cb_spinlock);
1333 list_add(&cb->debugfs_list, &dev_entry->cb_list);
1334 spin_unlock(&dev_entry->cb_spinlock);
1335}
1336
1337void hl_debugfs_remove_cb(struct hl_cb *cb)
1338{
1339 struct hl_dbg_device_entry *dev_entry = &cb->hdev->hl_debugfs;
1340
1341 spin_lock(&dev_entry->cb_spinlock);
1342 list_del(&cb->debugfs_list);
1343 spin_unlock(&dev_entry->cb_spinlock);
1344}
1345
1346void hl_debugfs_add_cs(struct hl_cs *cs)
1347{
1348 struct hl_dbg_device_entry *dev_entry = &cs->ctx->hdev->hl_debugfs;
1349
1350 spin_lock(&dev_entry->cs_spinlock);
1351 list_add(&cs->debugfs_list, &dev_entry->cs_list);
1352 spin_unlock(&dev_entry->cs_spinlock);
1353}
1354
1355void hl_debugfs_remove_cs(struct hl_cs *cs)
1356{
1357 struct hl_dbg_device_entry *dev_entry = &cs->ctx->hdev->hl_debugfs;
1358
1359 spin_lock(&dev_entry->cs_spinlock);
1360 list_del(&cs->debugfs_list);
1361 spin_unlock(&dev_entry->cs_spinlock);
1362}
1363
1364void hl_debugfs_add_job(struct hl_device *hdev, struct hl_cs_job *job)
1365{
1366 struct hl_dbg_device_entry *dev_entry = &hdev->hl_debugfs;
1367
1368 spin_lock(&dev_entry->cs_job_spinlock);
1369 list_add(&job->debugfs_list, &dev_entry->cs_job_list);
1370 spin_unlock(&dev_entry->cs_job_spinlock);
1371}
1372
1373void hl_debugfs_remove_job(struct hl_device *hdev, struct hl_cs_job *job)
1374{
1375 struct hl_dbg_device_entry *dev_entry = &hdev->hl_debugfs;
1376
1377 spin_lock(&dev_entry->cs_job_spinlock);
1378 list_del(&job->debugfs_list);
1379 spin_unlock(&dev_entry->cs_job_spinlock);
1380}
1381
1382void hl_debugfs_add_userptr(struct hl_device *hdev, struct hl_userptr *userptr)
1383{
1384 struct hl_dbg_device_entry *dev_entry = &hdev->hl_debugfs;
1385
1386 spin_lock(&dev_entry->userptr_spinlock);
1387 list_add(&userptr->debugfs_list, &dev_entry->userptr_list);
1388 spin_unlock(&dev_entry->userptr_spinlock);
1389}
1390
1391void hl_debugfs_remove_userptr(struct hl_device *hdev,
1392 struct hl_userptr *userptr)
1393{
1394 struct hl_dbg_device_entry *dev_entry = &hdev->hl_debugfs;
1395
1396 spin_lock(&dev_entry->userptr_spinlock);
1397 list_del(&userptr->debugfs_list);
1398 spin_unlock(&dev_entry->userptr_spinlock);
1399}
1400
1401void hl_debugfs_add_ctx_mem_hash(struct hl_device *hdev, struct hl_ctx *ctx)
1402{
1403 struct hl_dbg_device_entry *dev_entry = &hdev->hl_debugfs;
1404
1405 spin_lock(&dev_entry->ctx_mem_hash_spinlock);
1406 list_add(&ctx->debugfs_list, &dev_entry->ctx_mem_hash_list);
1407 spin_unlock(&dev_entry->ctx_mem_hash_spinlock);
1408}
1409
1410void hl_debugfs_remove_ctx_mem_hash(struct hl_device *hdev, struct hl_ctx *ctx)
1411{
1412 struct hl_dbg_device_entry *dev_entry = &hdev->hl_debugfs;
1413
1414 spin_lock(&dev_entry->ctx_mem_hash_spinlock);
1415 list_del(&ctx->debugfs_list);
1416 spin_unlock(&dev_entry->ctx_mem_hash_spinlock);
1417}
1418
1419void __init hl_debugfs_init(void)
1420{
1421 hl_debug_root = debugfs_create_dir("habanalabs", NULL);
1422}
1423
1424void hl_debugfs_fini(void)
1425{
1426 debugfs_remove_recursive(hl_debug_root);
1427}
1428
