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1// SPDX-License-Identifier: GPL-2.02 3/*4 * Copyright 2016-2021 HabanaLabs, Ltd.5 * All Rights Reserved.6 */7 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#include <linux/iommu.h>15 16#define MMU_ADDR_BUF_SIZE 4017#define MMU_ASID_BUF_SIZE 1018#define MMU_KBUF_SIZE (MMU_ADDR_BUF_SIZE + MMU_ASID_BUF_SIZE)19#define I2C_MAX_TRANSACTION_LEN 820 21static int hl_debugfs_i2c_read(struct hl_device *hdev, u8 i2c_bus, u8 i2c_addr,22 u8 i2c_reg, u8 i2c_len, u64 *val)23{24 struct cpucp_packet pkt;25 int rc;26 27 if (!hl_device_operational(hdev, NULL))28 return -EBUSY;29 30 if (i2c_len > I2C_MAX_TRANSACTION_LEN) {31 dev_err(hdev->dev, "I2C transaction length %u, exceeds maximum of %u\n",32 i2c_len, I2C_MAX_TRANSACTION_LEN);33 return -EINVAL;34 }35 36 memset(&pkt, 0, sizeof(pkt));37 38 pkt.ctl = cpu_to_le32(CPUCP_PACKET_I2C_RD <<39 CPUCP_PKT_CTL_OPCODE_SHIFT);40 pkt.i2c_bus = i2c_bus;41 pkt.i2c_addr = i2c_addr;42 pkt.i2c_reg = i2c_reg;43 pkt.i2c_len = i2c_len;44 45 rc = hdev->asic_funcs->send_cpu_message(hdev, (u32 *) &pkt, sizeof(pkt), 0, val);46 if (rc && rc != -EAGAIN)47 dev_err(hdev->dev, "Failed to read from I2C, error %d\n", rc);48 49 return rc;50}51 52static int hl_debugfs_i2c_write(struct hl_device *hdev, u8 i2c_bus, u8 i2c_addr,53 u8 i2c_reg, u8 i2c_len, u64 val)54{55 struct cpucp_packet pkt;56 int rc;57 58 if (!hl_device_operational(hdev, NULL))59 return -EBUSY;60 61 if (i2c_len > I2C_MAX_TRANSACTION_LEN) {62 dev_err(hdev->dev, "I2C transaction length %u, exceeds maximum of %u\n",63 i2c_len, I2C_MAX_TRANSACTION_LEN);64 return -EINVAL;65 }66 67 memset(&pkt, 0, sizeof(pkt));68 69 pkt.ctl = cpu_to_le32(CPUCP_PACKET_I2C_WR <<70 CPUCP_PKT_CTL_OPCODE_SHIFT);71 pkt.i2c_bus = i2c_bus;72 pkt.i2c_addr = i2c_addr;73 pkt.i2c_reg = i2c_reg;74 pkt.i2c_len = i2c_len;75 pkt.value = cpu_to_le64(val);76 77 rc = hdev->asic_funcs->send_cpu_message(hdev, (u32 *) &pkt, sizeof(pkt), 0, NULL);78 if (rc && rc != -EAGAIN)79 dev_err(hdev->dev, "Failed to write to I2C, error %d\n", rc);80 81 return rc;82}83 84static void hl_debugfs_led_set(struct hl_device *hdev, u8 led, u8 state)85{86 struct cpucp_packet pkt;87 int rc;88 89 if (!hl_device_operational(hdev, NULL))90 return;91 92 memset(&pkt, 0, sizeof(pkt));93 94 pkt.ctl = cpu_to_le32(CPUCP_PACKET_LED_SET <<95 CPUCP_PKT_CTL_OPCODE_SHIFT);96 pkt.led_index = cpu_to_le32(led);97 pkt.value = cpu_to_le64(state);98 99 rc = hdev->asic_funcs->send_cpu_message(hdev, (u32 *) &pkt, sizeof(pkt), 0, NULL);100 if (rc && rc != -EAGAIN)101 dev_err(hdev->dev, "Failed to set LED %d, error %d\n", led, rc);102}103 104static int command_buffers_show(struct seq_file *s, void *data)105{106 struct hl_debugfs_entry *entry = s->private;107 struct hl_dbg_device_entry *dev_entry = entry->dev_entry;108 struct hl_cb *cb;109 bool first = true;110 111 spin_lock(&dev_entry->cb_spinlock);112 113 list_for_each_entry(cb, &dev_entry->cb_list, debugfs_list) {114 if (first) {115 first = false;116 seq_puts(s, "\n");117 seq_puts(s, " CB ID CTX ID CB size CB RefCnt mmap? CS counter\n");118 seq_puts(s, "---------------------------------------------------------------\n");119 }120 seq_printf(s,121 " %03llu %d 0x%08x %d %d %d\n",122 cb->buf->handle, cb->ctx->asid, cb->size,123 kref_read(&cb->buf->refcount),124 atomic_read(&cb->buf->mmap), atomic_read(&cb->cs_cnt));125 }126 127 spin_unlock(&dev_entry->cb_spinlock);128 129 if (!first)130 seq_puts(s, "\n");131 132 return 0;133}134 135static int command_submission_show(struct seq_file *s, void *data)136{137 struct hl_debugfs_entry *entry = s->private;138 struct hl_dbg_device_entry *dev_entry = entry->dev_entry;139 struct hl_cs *cs;140 bool first = true;141 142 spin_lock(&dev_entry->cs_spinlock);143 144 list_for_each_entry(cs, &dev_entry->cs_list, debugfs_list) {145 if (first) {146 first = false;147 seq_puts(s, "\n");148 seq_puts(s, " CS ID CS TYPE CTX ASID CS RefCnt Submitted Completed\n");149 seq_puts(s, "----------------------------------------------------------------\n");150 }151 seq_printf(s,152 " %llu %d %d %d %d %d\n",153 cs->sequence, cs->type, cs->ctx->asid,154 kref_read(&cs->refcount),155 cs->submitted, cs->completed);156 }157 158 spin_unlock(&dev_entry->cs_spinlock);159 160 if (!first)161 seq_puts(s, "\n");162 163 return 0;164}165 166static int command_submission_jobs_show(struct seq_file *s, void *data)167{168 struct hl_debugfs_entry *entry = s->private;169 struct hl_dbg_device_entry *dev_entry = entry->dev_entry;170 struct hl_cs_job *job;171 bool first = true;172 173 spin_lock(&dev_entry->cs_job_spinlock);174 175 list_for_each_entry(job, &dev_entry->cs_job_list, debugfs_list) {176 if (first) {177 first = false;178 seq_puts(s, "\n");179 seq_puts(s, " JOB ID CS ID CS TYPE CTX ASID JOB RefCnt H/W Queue\n");180 seq_puts(s, "---------------------------------------------------------------\n");181 }182 if (job->cs)183 seq_printf(s,184 " %02d %llu %d %d %d %d\n",185 job->id, job->cs->sequence, job->cs->type,186 job->cs->ctx->asid, kref_read(&job->refcount),187 job->hw_queue_id);188 else189 seq_printf(s,190 " %02d 0 0 %d %d %d\n",191 job->id, HL_KERNEL_ASID_ID,192 kref_read(&job->refcount), job->hw_queue_id);193 }194 195 spin_unlock(&dev_entry->cs_job_spinlock);196 197 if (!first)198 seq_puts(s, "\n");199 200 return 0;201}202 203static int userptr_show(struct seq_file *s, void *data)204{205 struct hl_debugfs_entry *entry = s->private;206 struct hl_dbg_device_entry *dev_entry = entry->dev_entry;207 struct hl_userptr *userptr;208 char dma_dir[4][30] = {"DMA_BIDIRECTIONAL", "DMA_TO_DEVICE",209 "DMA_FROM_DEVICE", "DMA_NONE"};210 bool first = true;211 212 spin_lock(&dev_entry->userptr_spinlock);213 214 list_for_each_entry(userptr, &dev_entry->userptr_list, debugfs_list) {215 if (first) {216 first = false;217 seq_puts(s, "\n");218 seq_puts(s, " pid user virtual address size dma dir\n");219 seq_puts(s, "----------------------------------------------------------\n");220 }221 seq_printf(s, " %-7d 0x%-14llx %-10llu %-30s\n",222 userptr->pid, userptr->addr, userptr->size,223 dma_dir[userptr->dir]);224 }225 226 spin_unlock(&dev_entry->userptr_spinlock);227 228 if (!first)229 seq_puts(s, "\n");230 231 return 0;232}233 234static int vm_show(struct seq_file *s, void *data)235{236 struct hl_debugfs_entry *entry = s->private;237 struct hl_dbg_device_entry *dev_entry = entry->dev_entry;238 struct hl_vm_hw_block_list_node *lnode;239 struct hl_ctx *ctx;240 struct hl_vm *vm;241 struct hl_vm_hash_node *hnode;242 struct hl_userptr *userptr;243 struct hl_vm_phys_pg_pack *phys_pg_pack = NULL;244 struct hl_va_range *va_range;245 struct hl_vm_va_block *va_block;246 enum vm_type *vm_type;247 bool once = true;248 u64 j;249 int i;250 251 mutex_lock(&dev_entry->ctx_mem_hash_mutex);252 253 list_for_each_entry(ctx, &dev_entry->ctx_mem_hash_list, debugfs_list) {254 once = false;255 seq_puts(s, "\n\n----------------------------------------------------");256 seq_puts(s, "\n----------------------------------------------------\n\n");257 seq_printf(s, "ctx asid: %u\n", ctx->asid);258 259 seq_puts(s, "\nmappings:\n\n");260 seq_puts(s, " virtual address size handle\n");261 seq_puts(s, "----------------------------------------------------\n");262 mutex_lock(&ctx->mem_hash_lock);263 hash_for_each(ctx->mem_hash, i, hnode, node) {264 vm_type = hnode->ptr;265 266 if (*vm_type == VM_TYPE_USERPTR) {267 userptr = hnode->ptr;268 seq_printf(s,269 " 0x%-14llx %-10llu\n",270 hnode->vaddr, userptr->size);271 } else {272 phys_pg_pack = hnode->ptr;273 seq_printf(s,274 " 0x%-14llx %-10llu %-4u\n",275 hnode->vaddr, phys_pg_pack->total_size,276 phys_pg_pack->handle);277 }278 }279 mutex_unlock(&ctx->mem_hash_lock);280 281 if (ctx->asid != HL_KERNEL_ASID_ID &&282 !list_empty(&ctx->hw_block_mem_list)) {283 seq_puts(s, "\nhw_block mappings:\n\n");284 seq_puts(s,285 " virtual address block size mapped size HW block id\n");286 seq_puts(s,287 "---------------------------------------------------------------\n");288 mutex_lock(&ctx->hw_block_list_lock);289 list_for_each_entry(lnode, &ctx->hw_block_mem_list, node) {290 seq_printf(s,291 " 0x%-14lx %-6u %-6u %-9u\n",292 lnode->vaddr, lnode->block_size, lnode->mapped_size,293 lnode->id);294 }295 mutex_unlock(&ctx->hw_block_list_lock);296 }297 298 vm = &ctx->hdev->vm;299 spin_lock(&vm->idr_lock);300 301 if (!idr_is_empty(&vm->phys_pg_pack_handles))302 seq_puts(s, "\n\nallocations:\n");303 304 idr_for_each_entry(&vm->phys_pg_pack_handles, phys_pg_pack, i) {305 if (phys_pg_pack->asid != ctx->asid)306 continue;307 308 seq_printf(s, "\nhandle: %u\n", phys_pg_pack->handle);309 seq_printf(s, "page size: %u\n\n",310 phys_pg_pack->page_size);311 seq_puts(s, " physical address\n");312 seq_puts(s, "---------------------\n");313 for (j = 0 ; j < phys_pg_pack->npages ; j++) {314 seq_printf(s, " 0x%-14llx\n",315 phys_pg_pack->pages[j]);316 }317 }318 spin_unlock(&vm->idr_lock);319 320 }321 322 mutex_unlock(&dev_entry->ctx_mem_hash_mutex);323 324 ctx = hl_get_compute_ctx(dev_entry->hdev);325 if (ctx) {326 seq_puts(s, "\nVA ranges:\n\n");327 for (i = HL_VA_RANGE_TYPE_HOST ; i < HL_VA_RANGE_TYPE_MAX ; ++i) {328 va_range = ctx->va_range[i];329 seq_printf(s, " va_range %d\n", i);330 seq_puts(s, "---------------------\n");331 mutex_lock(&va_range->lock);332 list_for_each_entry(va_block, &va_range->list, node) {333 seq_printf(s, "%#16llx - %#16llx (%#llx)\n",334 va_block->start, va_block->end,335 va_block->size);336 }337 mutex_unlock(&va_range->lock);338 seq_puts(s, "\n");339 }340 hl_ctx_put(ctx);341 }342 343 if (!once)344 seq_puts(s, "\n");345 346 return 0;347}348 349static int userptr_lookup_show(struct seq_file *s, void *data)350{351 struct hl_debugfs_entry *entry = s->private;352 struct hl_dbg_device_entry *dev_entry = entry->dev_entry;353 struct scatterlist *sg;354 struct hl_userptr *userptr;355 bool first = true;356 u64 total_npages, npages, sg_start, sg_end;357 dma_addr_t dma_addr;358 int i;359 360 spin_lock(&dev_entry->userptr_spinlock);361 362 list_for_each_entry(userptr, &dev_entry->userptr_list, debugfs_list) {363 if (dev_entry->userptr_lookup >= userptr->addr &&364 dev_entry->userptr_lookup < userptr->addr + userptr->size) {365 total_npages = 0;366 for_each_sgtable_dma_sg(userptr->sgt, sg, i) {367 npages = hl_get_sg_info(sg, &dma_addr);368 sg_start = userptr->addr +369 total_npages * PAGE_SIZE;370 sg_end = userptr->addr +371 (total_npages + npages) * PAGE_SIZE;372 373 if (dev_entry->userptr_lookup >= sg_start &&374 dev_entry->userptr_lookup < sg_end) {375 dma_addr += (dev_entry->userptr_lookup -376 sg_start);377 if (first) {378 first = false;379 seq_puts(s, "\n");380 seq_puts(s, " user virtual address dma address pid region start region size\n");381 seq_puts(s, "---------------------------------------------------------------------------------------\n");382 }383 seq_printf(s, " 0x%-18llx 0x%-16llx %-8u 0x%-16llx %-12llu\n",384 dev_entry->userptr_lookup,385 (u64)dma_addr, userptr->pid,386 userptr->addr, userptr->size);387 }388 total_npages += npages;389 }390 }391 }392 393 spin_unlock(&dev_entry->userptr_spinlock);394 395 if (!first)396 seq_puts(s, "\n");397 398 return 0;399}400 401static ssize_t userptr_lookup_write(struct file *file, const char __user *buf,402 size_t count, loff_t *f_pos)403{404 struct seq_file *s = file->private_data;405 struct hl_debugfs_entry *entry = s->private;406 struct hl_dbg_device_entry *dev_entry = entry->dev_entry;407 ssize_t rc;408 u64 value;409 410 rc = kstrtoull_from_user(buf, count, 16, &value);411 if (rc)412 return rc;413 414 dev_entry->userptr_lookup = value;415 416 return count;417}418 419static int mmu_show(struct seq_file *s, void *data)420{421 struct hl_debugfs_entry *entry = s->private;422 struct hl_dbg_device_entry *dev_entry = entry->dev_entry;423 struct hl_device *hdev = dev_entry->hdev;424 struct hl_ctx *ctx;425 struct hl_mmu_hop_info hops_info = {0};426 u64 virt_addr = dev_entry->mmu_addr, phys_addr;427 int i;428 429 if (dev_entry->mmu_asid == HL_KERNEL_ASID_ID)430 ctx = hdev->kernel_ctx;431 else432 ctx = hl_get_compute_ctx(hdev);433 434 if (!ctx) {435 dev_err(hdev->dev, "no ctx available\n");436 return 0;437 }438 439 if (hl_mmu_get_tlb_info(ctx, virt_addr, &hops_info)) {440 dev_err(hdev->dev, "virt addr 0x%llx is not mapped to phys addr\n",441 virt_addr);442 goto put_ctx;443 }444 445 hl_mmu_va_to_pa(ctx, virt_addr, &phys_addr);446 447 if (hops_info.scrambled_vaddr &&448 (dev_entry->mmu_addr != hops_info.scrambled_vaddr))449 seq_printf(s,450 "asid: %u, virt_addr: 0x%llx, scrambled virt_addr: 0x%llx,\nphys_addr: 0x%llx, scrambled_phys_addr: 0x%llx\n",451 dev_entry->mmu_asid, dev_entry->mmu_addr,452 hops_info.scrambled_vaddr,453 hops_info.unscrambled_paddr, phys_addr);454 else455 seq_printf(s,456 "asid: %u, virt_addr: 0x%llx, phys_addr: 0x%llx\n",457 dev_entry->mmu_asid, dev_entry->mmu_addr, phys_addr);458 459 for (i = 0 ; i < hops_info.used_hops ; i++) {460 seq_printf(s, "hop%d_addr: 0x%llx\n",461 i, hops_info.hop_info[i].hop_addr);462 seq_printf(s, "hop%d_pte_addr: 0x%llx\n",463 i, hops_info.hop_info[i].hop_pte_addr);464 seq_printf(s, "hop%d_pte: 0x%llx\n",465 i, hops_info.hop_info[i].hop_pte_val);466 }467 468put_ctx:469 if (dev_entry->mmu_asid != HL_KERNEL_ASID_ID)470 hl_ctx_put(ctx);471 472 return 0;473}474 475static ssize_t mmu_asid_va_write(struct file *file, const char __user *buf,476 size_t count, loff_t *f_pos)477{478 struct seq_file *s = file->private_data;479 struct hl_debugfs_entry *entry = s->private;480 struct hl_dbg_device_entry *dev_entry = entry->dev_entry;481 struct hl_device *hdev = dev_entry->hdev;482 char kbuf[MMU_KBUF_SIZE] = {0};483 char *c;484 ssize_t rc;485 486 if (count > sizeof(kbuf) - 1)487 goto err;488 if (copy_from_user(kbuf, buf, count))489 goto err;490 kbuf[count] = 0;491 492 c = strchr(kbuf, ' ');493 if (!c)494 goto err;495 *c = '\0';496 497 rc = kstrtouint(kbuf, 10, &dev_entry->mmu_asid);498 if (rc)499 goto err;500 501 if (strncmp(c+1, "0x", 2))502 goto err;503 rc = kstrtoull(c+3, 16, &dev_entry->mmu_addr);504 if (rc)505 goto err;506 507 return count;508 509err:510 dev_err(hdev->dev, "usage: echo <asid> <0xaddr> > mmu\n");511 512 return -EINVAL;513}514 515static int mmu_ack_error(struct seq_file *s, void *data)516{517 struct hl_debugfs_entry *entry = s->private;518 struct hl_dbg_device_entry *dev_entry = entry->dev_entry;519 struct hl_device *hdev = dev_entry->hdev;520 int rc;521 522 if (!dev_entry->mmu_cap_mask) {523 dev_err(hdev->dev, "mmu_cap_mask is not set\n");524 goto err;525 }526 527 rc = hdev->asic_funcs->ack_mmu_errors(hdev, dev_entry->mmu_cap_mask);528 if (rc)529 goto err;530 531 return 0;532err:533 return -EINVAL;534}535 536static ssize_t mmu_ack_error_value_write(struct file *file,537 const char __user *buf,538 size_t count, loff_t *f_pos)539{540 struct seq_file *s = file->private_data;541 struct hl_debugfs_entry *entry = s->private;542 struct hl_dbg_device_entry *dev_entry = entry->dev_entry;543 struct hl_device *hdev = dev_entry->hdev;544 char kbuf[MMU_KBUF_SIZE] = {0};545 ssize_t rc;546 547 if (count > sizeof(kbuf) - 1)548 goto err;549 550 if (copy_from_user(kbuf, buf, count))551 goto err;552 553 kbuf[count] = 0;554 555 if (strncmp(kbuf, "0x", 2))556 goto err;557 558 rc = kstrtoull(kbuf, 16, &dev_entry->mmu_cap_mask);559 if (rc)560 goto err;561 562 return count;563err:564 dev_err(hdev->dev, "usage: echo <0xmmu_cap_mask > > mmu_error\n");565 566 return -EINVAL;567}568 569static int engines_show(struct seq_file *s, void *data)570{571 struct hl_debugfs_entry *entry = s->private;572 struct hl_dbg_device_entry *dev_entry = entry->dev_entry;573 struct hl_device *hdev = dev_entry->hdev;574 struct engines_data eng_data;575 576 if (hdev->reset_info.in_reset) {577 dev_warn_ratelimited(hdev->dev,578 "Can't check device idle during reset\n");579 return 0;580 }581 582 eng_data.actual_size = 0;583 eng_data.allocated_buf_size = HL_ENGINES_DATA_MAX_SIZE;584 eng_data.buf = vmalloc(eng_data.allocated_buf_size);585 if (!eng_data.buf)586 return -ENOMEM;587 588 hdev->asic_funcs->is_device_idle(hdev, NULL, 0, &eng_data);589 590 if (eng_data.actual_size > eng_data.allocated_buf_size) {591 dev_err(hdev->dev,592 "Engines data size (%d Bytes) is bigger than allocated size (%u Bytes)\n",593 eng_data.actual_size, eng_data.allocated_buf_size);594 vfree(eng_data.buf);595 return -ENOMEM;596 }597 598 seq_write(s, eng_data.buf, eng_data.actual_size);599 600 vfree(eng_data.buf);601 602 return 0;603}604 605static ssize_t hl_memory_scrub(struct file *f, const char __user *buf,606 size_t count, loff_t *ppos)607{608 struct hl_dbg_device_entry *entry = file_inode(f)->i_private;609 struct hl_device *hdev = entry->hdev;610 u64 val = hdev->memory_scrub_val;611 int rc;612 613 if (!hl_device_operational(hdev, NULL)) {614 dev_warn_ratelimited(hdev->dev, "Can't scrub memory, device is not operational\n");615 return -EIO;616 }617 618 mutex_lock(&hdev->fpriv_list_lock);619 if (hdev->is_compute_ctx_active) {620 mutex_unlock(&hdev->fpriv_list_lock);621 dev_err(hdev->dev, "can't scrub dram, context exist\n");622 return -EBUSY;623 }624 hdev->is_in_dram_scrub = true;625 mutex_unlock(&hdev->fpriv_list_lock);626 627 rc = hdev->asic_funcs->scrub_device_dram(hdev, val);628 629 mutex_lock(&hdev->fpriv_list_lock);630 hdev->is_in_dram_scrub = false;631 mutex_unlock(&hdev->fpriv_list_lock);632 633 if (rc)634 return rc;635 return count;636}637 638static bool hl_is_device_va(struct hl_device *hdev, u64 addr)639{640 struct asic_fixed_properties *prop = &hdev->asic_prop;641 642 if (prop->dram_supports_virtual_memory &&643 (addr >= prop->dmmu.start_addr && addr < prop->dmmu.end_addr))644 return true;645 646 if (addr >= prop->pmmu.start_addr &&647 addr < prop->pmmu.end_addr)648 return true;649 650 if (addr >= prop->pmmu_huge.start_addr &&651 addr < prop->pmmu_huge.end_addr)652 return true;653 654 return false;655}656 657static bool hl_is_device_internal_memory_va(struct hl_device *hdev, u64 addr,658 u32 size)659{660 struct asic_fixed_properties *prop = &hdev->asic_prop;661 u64 dram_start_addr, dram_end_addr;662 663 if (prop->dram_supports_virtual_memory) {664 dram_start_addr = prop->dmmu.start_addr;665 dram_end_addr = prop->dmmu.end_addr;666 } else {667 dram_start_addr = prop->dram_base_address;668 dram_end_addr = prop->dram_end_address;669 }670 671 if (hl_mem_area_inside_range(addr, size, dram_start_addr,672 dram_end_addr))673 return true;674 675 if (hl_mem_area_inside_range(addr, size, prop->sram_base_address,676 prop->sram_end_address))677 return true;678 679 return false;680}681 682static int device_va_to_pa(struct hl_device *hdev, u64 virt_addr, u32 size,683 u64 *phys_addr)684{685 struct hl_vm_phys_pg_pack *phys_pg_pack;686 struct hl_ctx *ctx;687 struct hl_vm_hash_node *hnode;688 u64 end_address, range_size;689 struct hl_userptr *userptr;690 enum vm_type *vm_type;691 bool valid = false;692 int i, rc = 0;693 694 ctx = hl_get_compute_ctx(hdev);695 696 if (!ctx) {697 dev_err(hdev->dev, "no ctx available\n");698 return -EINVAL;699 }700 701 /* Verify address is mapped */702 mutex_lock(&ctx->mem_hash_lock);703 hash_for_each(ctx->mem_hash, i, hnode, node) {704 vm_type = hnode->ptr;705 706 if (*vm_type == VM_TYPE_USERPTR) {707 userptr = hnode->ptr;708 range_size = userptr->size;709 } else {710 phys_pg_pack = hnode->ptr;711 range_size = phys_pg_pack->total_size;712 }713 714 end_address = virt_addr + size;715 if ((virt_addr >= hnode->vaddr) &&716 (end_address <= hnode->vaddr + range_size)) {717 valid = true;718 break;719 }720 }721 mutex_unlock(&ctx->mem_hash_lock);722 723 if (!valid) {724 dev_err(hdev->dev,725 "virt addr 0x%llx is not mapped\n",726 virt_addr);727 rc = -EINVAL;728 goto put_ctx;729 }730 731 rc = hl_mmu_va_to_pa(ctx, virt_addr, phys_addr);732 if (rc) {733 dev_err(hdev->dev,734 "virt addr 0x%llx is not mapped to phys addr\n",735 virt_addr);736 rc = -EINVAL;737 }738 739put_ctx:740 hl_ctx_put(ctx);741 742 return rc;743}744 745static int hl_access_dev_mem_by_region(struct hl_device *hdev, u64 addr,746 u64 *val, enum debugfs_access_type acc_type, bool *found)747{748 size_t acc_size = (acc_type == DEBUGFS_READ64 || acc_type == DEBUGFS_WRITE64) ?749 sizeof(u64) : sizeof(u32);750 struct pci_mem_region *mem_reg;751 int i;752 753 for (i = 0; i < PCI_REGION_NUMBER; i++) {754 mem_reg = &hdev->pci_mem_region[i];755 if (!mem_reg->used)756 continue;757 if (addr >= mem_reg->region_base &&758 addr <= mem_reg->region_base + mem_reg->region_size - acc_size) {759 *found = true;760 return hdev->asic_funcs->access_dev_mem(hdev, i, addr, val, acc_type);761 }762 }763 return 0;764}765 766static void hl_access_host_mem(struct hl_device *hdev, u64 addr, u64 *val,767 enum debugfs_access_type acc_type)768{769 struct asic_fixed_properties *prop = &hdev->asic_prop;770 u64 offset = prop->device_dma_offset_for_host_access;771 772 switch (acc_type) {773 case DEBUGFS_READ32:774 *val = *(u32 *) phys_to_virt(addr - offset);775 break;776 case DEBUGFS_WRITE32:777 *(u32 *) phys_to_virt(addr - offset) = *val;778 break;779 case DEBUGFS_READ64:780 *val = *(u64 *) phys_to_virt(addr - offset);781 break;782 case DEBUGFS_WRITE64:783 *(u64 *) phys_to_virt(addr - offset) = *val;784 break;785 default:786 dev_err(hdev->dev, "hostmem access-type %d id not supported\n", acc_type);787 break;788 }789}790 791static int hl_access_mem(struct hl_device *hdev, u64 addr, u64 *val,792 enum debugfs_access_type acc_type)793{794 size_t acc_size = (acc_type == DEBUGFS_READ64 || acc_type == DEBUGFS_WRITE64) ?795 sizeof(u64) : sizeof(u32);796 u64 host_start = hdev->asic_prop.host_base_address;797 u64 host_end = hdev->asic_prop.host_end_address;798 bool user_address, found = false;799 int rc;800 801 user_address = hl_is_device_va(hdev, addr);802 if (user_address) {803 rc = device_va_to_pa(hdev, addr, acc_size, &addr);804 if (rc)805 return rc;806 }807 808 rc = hl_access_dev_mem_by_region(hdev, addr, val, acc_type, &found);809 if (rc) {810 dev_err(hdev->dev,811 "Failed reading addr %#llx from dev mem (%d)\n",812 addr, rc);813 return rc;814 }815 816 if (found)817 return 0;818 819 if (!user_address || device_iommu_mapped(&hdev->pdev->dev)) {820 rc = -EINVAL;821 goto err;822 }823 824 if (addr >= host_start && addr <= host_end - acc_size) {825 hl_access_host_mem(hdev, addr, val, acc_type);826 } else {827 rc = -EINVAL;828 goto err;829 }830 831 return 0;832err:833 dev_err(hdev->dev, "invalid addr %#llx\n", addr);834 return rc;835}836 837static ssize_t hl_data_read32(struct file *f, char __user *buf,838 size_t count, loff_t *ppos)839{840 struct hl_dbg_device_entry *entry = file_inode(f)->i_private;841 struct hl_device *hdev = entry->hdev;842 u64 value64, addr = entry->addr;843 char tmp_buf[32];844 ssize_t rc;845 u32 val;846 847 if (hdev->reset_info.in_reset) {848 dev_warn_ratelimited(hdev->dev, "Can't read during reset\n");849 return 0;850 }851 852 if (*ppos)853 return 0;854 855 rc = hl_access_mem(hdev, addr, &value64, DEBUGFS_READ32);856 if (rc)857 return rc;858 859 val = value64; /* downcast back to 32 */860 861 sprintf(tmp_buf, "0x%08x\n", val);862 return simple_read_from_buffer(buf, count, ppos, tmp_buf,863 strlen(tmp_buf));864}865 866static ssize_t hl_data_write32(struct file *f, const char __user *buf,867 size_t count, loff_t *ppos)868{869 struct hl_dbg_device_entry *entry = file_inode(f)->i_private;870 struct hl_device *hdev = entry->hdev;871 u64 value64, addr = entry->addr;872 u32 value;873 ssize_t rc;874 875 if (hdev->reset_info.in_reset) {876 dev_warn_ratelimited(hdev->dev, "Can't write during reset\n");877 return 0;878 }879 880 rc = kstrtouint_from_user(buf, count, 16, &value);881 if (rc)882 return rc;883 884 value64 = value;885 rc = hl_access_mem(hdev, addr, &value64, DEBUGFS_WRITE32);886 if (rc)887 return rc;888 889 return count;890}891 892static ssize_t hl_data_read64(struct file *f, char __user *buf,893 size_t count, loff_t *ppos)894{895 struct hl_dbg_device_entry *entry = file_inode(f)->i_private;896 struct hl_device *hdev = entry->hdev;897 u64 addr = entry->addr;898 char tmp_buf[32];899 ssize_t rc;900 u64 val;901 902 if (hdev->reset_info.in_reset) {903 dev_warn_ratelimited(hdev->dev, "Can't read during reset\n");904 return 0;905 }906 907 if (*ppos)908 return 0;909 910 rc = hl_access_mem(hdev, addr, &val, DEBUGFS_READ64);911 if (rc)912 return rc;913 914 sprintf(tmp_buf, "0x%016llx\n", val);915 return simple_read_from_buffer(buf, count, ppos, tmp_buf,916 strlen(tmp_buf));917}918 919static ssize_t hl_data_write64(struct file *f, const char __user *buf,920 size_t count, loff_t *ppos)921{922 struct hl_dbg_device_entry *entry = file_inode(f)->i_private;923 struct hl_device *hdev = entry->hdev;924 u64 addr = entry->addr;925 u64 value;926 ssize_t rc;927 928 if (hdev->reset_info.in_reset) {929 dev_warn_ratelimited(hdev->dev, "Can't write during reset\n");930 return 0;931 }932 933 rc = kstrtoull_from_user(buf, count, 16, &value);934 if (rc)935 return rc;936 937 rc = hl_access_mem(hdev, addr, &value, DEBUGFS_WRITE64);938 if (rc)939 return rc;940 941 return count;942}943 944static ssize_t hl_dma_size_write(struct file *f, const char __user *buf,945 size_t count, loff_t *ppos)946{947 struct hl_dbg_device_entry *entry = file_inode(f)->i_private;948 struct hl_device *hdev = entry->hdev;949 u64 addr = entry->addr;950 ssize_t rc;951 u32 size;952 953 if (hdev->reset_info.in_reset) {954 dev_warn_ratelimited(hdev->dev, "Can't DMA during reset\n");955 return 0;956 }957 rc = kstrtouint_from_user(buf, count, 16, &size);958 if (rc)959 return rc;960 961 if (!size) {962 dev_err(hdev->dev, "DMA read failed. size can't be 0\n");963 return -EINVAL;964 }965 966 if (size > SZ_128M) {967 dev_err(hdev->dev,968 "DMA read failed. size can't be larger than 128MB\n");969 return -EINVAL;970 }971 972 if (!hl_is_device_internal_memory_va(hdev, addr, size)) {973 dev_err(hdev->dev,974 "DMA read failed. Invalid 0x%010llx + 0x%08x\n",975 addr, size);976 return -EINVAL;977 }978 979 /* Free the previous allocation, if there was any */980 entry->data_dma_blob_desc.size = 0;981 vfree(entry->data_dma_blob_desc.data);982 983 entry->data_dma_blob_desc.data = vmalloc(size);984 if (!entry->data_dma_blob_desc.data)985 return -ENOMEM;986 987 rc = hdev->asic_funcs->debugfs_read_dma(hdev, addr, size,988 entry->data_dma_blob_desc.data);989 if (rc) {990 dev_err(hdev->dev, "Failed to DMA from 0x%010llx\n", addr);991 vfree(entry->data_dma_blob_desc.data);992 entry->data_dma_blob_desc.data = NULL;993 return -EIO;994 }995 996 entry->data_dma_blob_desc.size = size;997 998 return count;999}1000 1001static ssize_t hl_monitor_dump_trigger(struct file *f, const char __user *buf,1002 size_t count, loff_t *ppos)1003{1004 struct hl_dbg_device_entry *entry = file_inode(f)->i_private;1005 struct hl_device *hdev = entry->hdev;1006 u32 size, trig;1007 ssize_t rc;1008 1009 if (hdev->reset_info.in_reset) {1010 dev_warn_ratelimited(hdev->dev, "Can't dump monitors during reset\n");1011 return 0;1012 }1013 rc = kstrtouint_from_user(buf, count, 10, &trig);1014 if (rc)1015 return rc;1016 1017 if (trig != 1) {1018 dev_err(hdev->dev, "Must write 1 to trigger monitor dump\n");1019 return -EINVAL;1020 }1021 1022 size = sizeof(struct cpucp_monitor_dump);1023 1024 /* Free the previous allocation, if there was any */1025 entry->mon_dump_blob_desc.size = 0;1026 vfree(entry->mon_dump_blob_desc.data);1027 1028 entry->mon_dump_blob_desc.data = vmalloc(size);1029 if (!entry->mon_dump_blob_desc.data)1030 return -ENOMEM;1031 1032 rc = hdev->asic_funcs->get_monitor_dump(hdev, entry->mon_dump_blob_desc.data);1033 if (rc) {1034 dev_err(hdev->dev, "Failed to dump monitors\n");1035 vfree(entry->mon_dump_blob_desc.data);1036 entry->mon_dump_blob_desc.data = NULL;1037 return -EIO;1038 }1039 1040 entry->mon_dump_blob_desc.size = size;1041 1042 return count;1043}1044 1045static ssize_t hl_get_power_state(struct file *f, char __user *buf,1046 size_t count, loff_t *ppos)1047{1048 struct hl_dbg_device_entry *entry = file_inode(f)->i_private;1049 struct hl_device *hdev = entry->hdev;1050 char tmp_buf[200];1051 int i;1052 1053 if (*ppos)1054 return 0;1055 1056 if (hdev->pdev->current_state == PCI_D0)1057 i = 1;1058 else if (hdev->pdev->current_state == PCI_D3hot)1059 i = 2;1060 else1061 i = 3;1062 1063 sprintf(tmp_buf,1064 "current power state: %d\n1 - D0\n2 - D3hot\n3 - Unknown\n", i);1065 return simple_read_from_buffer(buf, count, ppos, tmp_buf,1066 strlen(tmp_buf));1067}1068 1069static ssize_t hl_set_power_state(struct file *f, const char __user *buf,1070 size_t count, loff_t *ppos)1071{1072 struct hl_dbg_device_entry *entry = file_inode(f)->i_private;1073 struct hl_device *hdev = entry->hdev;1074 u32 value;1075 ssize_t rc;1076 1077 rc = kstrtouint_from_user(buf, count, 10, &value);1078 if (rc)1079 return rc;1080 1081 if (value == 1) {1082 pci_set_power_state(hdev->pdev, PCI_D0);1083 pci_restore_state(hdev->pdev);1084 rc = pci_enable_device(hdev->pdev);1085 if (rc < 0)1086 return rc;1087 } else if (value == 2) {1088 pci_save_state(hdev->pdev);1089 pci_disable_device(hdev->pdev);1090 pci_set_power_state(hdev->pdev, PCI_D3hot);1091 } else {1092 dev_dbg(hdev->dev, "invalid power state value %u\n", value);1093 return -EINVAL;1094 }1095 1096 return count;1097}1098 1099static ssize_t hl_i2c_data_read(struct file *f, char __user *buf,1100 size_t count, loff_t *ppos)1101{1102 struct hl_dbg_device_entry *entry = file_inode(f)->i_private;1103 struct hl_device *hdev = entry->hdev;1104 char tmp_buf[32];1105 u64 val;1106 ssize_t rc;1107 1108 if (*ppos)1109 return 0;1110 1111 rc = hl_debugfs_i2c_read(hdev, entry->i2c_bus, entry->i2c_addr,1112 entry->i2c_reg, entry->i2c_len, &val);1113 if (rc) {1114 dev_err(hdev->dev,1115 "Failed to read from I2C bus %d, addr %d, reg %d, len %d\n",1116 entry->i2c_bus, entry->i2c_addr, entry->i2c_reg, entry->i2c_len);1117 return rc;1118 }1119 1120 sprintf(tmp_buf, "%#02llx\n", val);1121 rc = simple_read_from_buffer(buf, count, ppos, tmp_buf,1122 strlen(tmp_buf));1123 1124 return rc;1125}1126 1127static ssize_t hl_i2c_data_write(struct file *f, const char __user *buf,1128 size_t count, loff_t *ppos)1129{1130 struct hl_dbg_device_entry *entry = file_inode(f)->i_private;1131 struct hl_device *hdev = entry->hdev;1132 u64 value;1133 ssize_t rc;1134 1135 rc = kstrtou64_from_user(buf, count, 16, &value);1136 if (rc)1137 return rc;1138 1139 rc = hl_debugfs_i2c_write(hdev, entry->i2c_bus, entry->i2c_addr,1140 entry->i2c_reg, entry->i2c_len, value);1141 if (rc) {1142 dev_err(hdev->dev,1143 "Failed to write %#02llx to I2C bus %d, addr %d, reg %d, len %d\n",1144 value, entry->i2c_bus, entry->i2c_addr, entry->i2c_reg, entry->i2c_len);1145 return rc;1146 }1147 1148 return count;1149}1150 1151static ssize_t hl_led0_write(struct file *f, const char __user *buf,1152 size_t count, loff_t *ppos)1153{1154 struct hl_dbg_device_entry *entry = file_inode(f)->i_private;1155 struct hl_device *hdev = entry->hdev;1156 u32 value;1157 ssize_t rc;1158 1159 rc = kstrtouint_from_user(buf, count, 10, &value);1160 if (rc)1161 return rc;1162 1163 value = value ? 1 : 0;1164 1165 hl_debugfs_led_set(hdev, 0, value);1166 1167 return count;1168}1169 1170static ssize_t hl_led1_write(struct file *f, const char __user *buf,1171 size_t count, loff_t *ppos)1172{1173 struct hl_dbg_device_entry *entry = file_inode(f)->i_private;1174 struct hl_device *hdev = entry->hdev;1175 u32 value;1176 ssize_t rc;1177 1178 rc = kstrtouint_from_user(buf, count, 10, &value);1179 if (rc)1180 return rc;1181 1182 value = value ? 1 : 0;1183 1184 hl_debugfs_led_set(hdev, 1, value);1185 1186 return count;1187}1188 1189static ssize_t hl_led2_write(struct file *f, const char __user *buf,1190 size_t count, loff_t *ppos)1191{1192 struct hl_dbg_device_entry *entry = file_inode(f)->i_private;1193 struct hl_device *hdev = entry->hdev;1194 u32 value;1195 ssize_t rc;1196 1197 rc = kstrtouint_from_user(buf, count, 10, &value);1198 if (rc)1199 return rc;1200 1201 value = value ? 1 : 0;1202 1203 hl_debugfs_led_set(hdev, 2, value);1204 1205 return count;1206}1207 1208static ssize_t hl_device_read(struct file *f, char __user *buf,1209 size_t count, loff_t *ppos)1210{1211 static const char *help =1212 "Valid values: disable, enable, suspend, resume, cpu_timeout\n";1213 return simple_read_from_buffer(buf, count, ppos, help, strlen(help));1214}1215 1216static ssize_t hl_device_write(struct file *f, const char __user *buf,1217 size_t count, loff_t *ppos)1218{1219 struct hl_dbg_device_entry *entry = file_inode(f)->i_private;1220 struct hl_device *hdev = entry->hdev;1221 char data[30] = {0};1222 1223 /* don't allow partial writes */1224 if (*ppos != 0)1225 return 0;1226 1227 simple_write_to_buffer(data, 29, ppos, buf, count);1228 1229 if (strncmp("disable", data, strlen("disable")) == 0) {1230 hdev->disabled = true;1231 } else if (strncmp("enable", data, strlen("enable")) == 0) {1232 hdev->disabled = false;1233 } else if (strncmp("suspend", data, strlen("suspend")) == 0) {1234 hdev->asic_funcs->suspend(hdev);1235 } else if (strncmp("resume", data, strlen("resume")) == 0) {1236 hdev->asic_funcs->resume(hdev);1237 } else if (strncmp("cpu_timeout", data, strlen("cpu_timeout")) == 0) {1238 hdev->device_cpu_disabled = true;1239 } else {1240 dev_err(hdev->dev,1241 "Valid values: disable, enable, suspend, resume, cpu_timeout\n");1242 count = -EINVAL;1243 }1244 1245 return count;1246}1247 1248static ssize_t hl_clk_gate_read(struct file *f, char __user *buf,1249 size_t count, loff_t *ppos)1250{1251 return 0;1252}1253 1254static ssize_t hl_clk_gate_write(struct file *f, const char __user *buf,1255 size_t count, loff_t *ppos)1256{1257 return count;1258}1259 1260static ssize_t hl_stop_on_err_read(struct file *f, char __user *buf,1261 size_t count, loff_t *ppos)1262{1263 struct hl_dbg_device_entry *entry = file_inode(f)->i_private;1264 struct hl_device *hdev = entry->hdev;1265 char tmp_buf[200];1266 ssize_t rc;1267 1268 if (!hdev->asic_prop.configurable_stop_on_err)1269 return -EOPNOTSUPP;1270 1271 if (*ppos)1272 return 0;1273 1274 sprintf(tmp_buf, "%d\n", hdev->stop_on_err);1275 rc = simple_read_from_buffer(buf, strlen(tmp_buf) + 1, ppos, tmp_buf,1276 strlen(tmp_buf) + 1);1277 1278 return rc;1279}1280 1281static ssize_t hl_stop_on_err_write(struct file *f, const char __user *buf,1282 size_t count, loff_t *ppos)1283{1284 struct hl_dbg_device_entry *entry = file_inode(f)->i_private;1285 struct hl_device *hdev = entry->hdev;1286 u32 value;1287 ssize_t rc;1288 1289 if (!hdev->asic_prop.configurable_stop_on_err)1290 return -EOPNOTSUPP;1291 1292 if (hdev->reset_info.in_reset) {1293 dev_warn_ratelimited(hdev->dev,1294 "Can't change stop on error during reset\n");1295 return 0;1296 }1297 1298 rc = kstrtouint_from_user(buf, count, 10, &value);1299 if (rc)1300 return rc;1301 1302 hdev->stop_on_err = value ? 1 : 0;1303 1304 hl_device_reset(hdev, 0);1305 1306 return count;1307}1308 1309static ssize_t hl_security_violations_read(struct file *f, char __user *buf,1310 size_t count, loff_t *ppos)1311{1312 struct hl_dbg_device_entry *entry = file_inode(f)->i_private;1313 struct hl_device *hdev = entry->hdev;1314 1315 hdev->asic_funcs->ack_protection_bits_errors(hdev);1316 1317 return 0;1318}1319 1320static ssize_t hl_state_dump_read(struct file *f, char __user *buf,1321 size_t count, loff_t *ppos)1322{1323 struct hl_dbg_device_entry *entry = file_inode(f)->i_private;1324 ssize_t rc;1325 1326 down_read(&entry->state_dump_sem);1327 if (!entry->state_dump[entry->state_dump_head])1328 rc = 0;1329 else1330 rc = simple_read_from_buffer(1331 buf, count, ppos,1332 entry->state_dump[entry->state_dump_head],1333 strlen(entry->state_dump[entry->state_dump_head]));1334 up_read(&entry->state_dump_sem);1335 1336 return rc;1337}1338 1339static ssize_t hl_state_dump_write(struct file *f, const char __user *buf,1340 size_t count, loff_t *ppos)1341{1342 struct hl_dbg_device_entry *entry = file_inode(f)->i_private;1343 struct hl_device *hdev = entry->hdev;1344 ssize_t rc;1345 u32 size;1346 int i;1347 1348 rc = kstrtouint_from_user(buf, count, 10, &size);1349 if (rc)1350 return rc;1351 1352 if (size <= 0 || size >= ARRAY_SIZE(entry->state_dump)) {1353 dev_err(hdev->dev, "Invalid number of dumps to skip\n");1354 return -EINVAL;1355 }1356 1357 if (entry->state_dump[entry->state_dump_head]) {1358 down_write(&entry->state_dump_sem);1359 for (i = 0; i < size; ++i) {1360 vfree(entry->state_dump[entry->state_dump_head]);1361 entry->state_dump[entry->state_dump_head] = NULL;1362 if (entry->state_dump_head > 0)1363 entry->state_dump_head--;1364 else1365 entry->state_dump_head =1366 ARRAY_SIZE(entry->state_dump) - 1;1367 }1368 up_write(&entry->state_dump_sem);1369 }1370 1371 return count;1372}1373 1374static ssize_t hl_timeout_locked_read(struct file *f, char __user *buf,1375 size_t count, loff_t *ppos)1376{1377 struct hl_dbg_device_entry *entry = file_inode(f)->i_private;1378 struct hl_device *hdev = entry->hdev;1379 char tmp_buf[200];1380 ssize_t rc;1381 1382 if (*ppos)1383 return 0;1384 1385 sprintf(tmp_buf, "%d\n",1386 jiffies_to_msecs(hdev->timeout_jiffies) / 1000);1387 rc = simple_read_from_buffer(buf, strlen(tmp_buf) + 1, ppos, tmp_buf,1388 strlen(tmp_buf) + 1);1389 1390 return rc;1391}1392 1393static ssize_t hl_timeout_locked_write(struct file *f, const char __user *buf,1394 size_t count, loff_t *ppos)1395{1396 struct hl_dbg_device_entry *entry = file_inode(f)->i_private;1397 struct hl_device *hdev = entry->hdev;1398 u32 value;1399 ssize_t rc;1400 1401 rc = kstrtouint_from_user(buf, count, 10, &value);1402 if (rc)1403 return rc;1404 1405 if (value)1406 hdev->timeout_jiffies = msecs_to_jiffies(value * 1000);1407 else1408 hdev->timeout_jiffies = MAX_SCHEDULE_TIMEOUT;1409 1410 return count;1411}1412 1413static ssize_t hl_check_razwi_happened(struct file *f, char __user *buf,1414 size_t count, loff_t *ppos)1415{1416 struct hl_dbg_device_entry *entry = file_inode(f)->i_private;1417 struct hl_device *hdev = entry->hdev;1418 1419 hdev->asic_funcs->check_if_razwi_happened(hdev);1420 1421 return 0;1422}1423 1424static const struct file_operations hl_mem_scrub_fops = {1425 .owner = THIS_MODULE,1426 .write = hl_memory_scrub,1427};1428 1429static const struct file_operations hl_data32b_fops = {1430 .owner = THIS_MODULE,1431 .read = hl_data_read32,1432 .write = hl_data_write321433};1434 1435static const struct file_operations hl_data64b_fops = {1436 .owner = THIS_MODULE,1437 .read = hl_data_read64,1438 .write = hl_data_write641439};1440 1441static const struct file_operations hl_dma_size_fops = {1442 .owner = THIS_MODULE,1443 .write = hl_dma_size_write1444};1445 1446static const struct file_operations hl_monitor_dump_fops = {1447 .owner = THIS_MODULE,1448 .write = hl_monitor_dump_trigger1449};1450 1451static const struct file_operations hl_i2c_data_fops = {1452 .owner = THIS_MODULE,1453 .read = hl_i2c_data_read,1454 .write = hl_i2c_data_write1455};1456 1457static const struct file_operations hl_power_fops = {1458 .owner = THIS_MODULE,1459 .read = hl_get_power_state,1460 .write = hl_set_power_state1461};1462 1463static const struct file_operations hl_led0_fops = {1464 .owner = THIS_MODULE,1465 .write = hl_led0_write1466};1467 1468static const struct file_operations hl_led1_fops = {1469 .owner = THIS_MODULE,1470 .write = hl_led1_write1471};1472 1473static const struct file_operations hl_led2_fops = {1474 .owner = THIS_MODULE,1475 .write = hl_led2_write1476};1477 1478static const struct file_operations hl_device_fops = {1479 .owner = THIS_MODULE,1480 .read = hl_device_read,1481 .write = hl_device_write1482};1483 1484static const struct file_operations hl_clk_gate_fops = {1485 .owner = THIS_MODULE,1486 .read = hl_clk_gate_read,1487 .write = hl_clk_gate_write1488};1489 1490static const struct file_operations hl_stop_on_err_fops = {1491 .owner = THIS_MODULE,1492 .read = hl_stop_on_err_read,1493 .write = hl_stop_on_err_write1494};1495 1496static const struct file_operations hl_security_violations_fops = {1497 .owner = THIS_MODULE,1498 .read = hl_security_violations_read1499};1500 1501static const struct file_operations hl_state_dump_fops = {1502 .owner = THIS_MODULE,1503 .read = hl_state_dump_read,1504 .write = hl_state_dump_write1505};1506 1507static const struct file_operations hl_timeout_locked_fops = {1508 .owner = THIS_MODULE,1509 .read = hl_timeout_locked_read,1510 .write = hl_timeout_locked_write1511};1512 1513static const struct file_operations hl_razwi_check_fops = {1514 .owner = THIS_MODULE,1515 .read = hl_check_razwi_happened1516};1517 1518static const struct hl_info_list hl_debugfs_list[] = {1519 {"command_buffers", command_buffers_show, NULL},1520 {"command_submission", command_submission_show, NULL},1521 {"command_submission_jobs", command_submission_jobs_show, NULL},1522 {"userptr", userptr_show, NULL},1523 {"vm", vm_show, NULL},1524 {"userptr_lookup", userptr_lookup_show, userptr_lookup_write},1525 {"mmu", mmu_show, mmu_asid_va_write},1526 {"mmu_error", mmu_ack_error, mmu_ack_error_value_write},1527 {"engines", engines_show, NULL},1528};1529 1530static int hl_debugfs_open(struct inode *inode, struct file *file)1531{1532 struct hl_debugfs_entry *node = inode->i_private;1533 1534 return single_open(file, node->info_ent->show, node);1535}1536 1537static ssize_t hl_debugfs_write(struct file *file, const char __user *buf,1538 size_t count, loff_t *f_pos)1539{1540 struct hl_debugfs_entry *node = file->f_inode->i_private;1541 1542 if (node->info_ent->write)1543 return node->info_ent->write(file, buf, count, f_pos);1544 else1545 return -EINVAL;1546 1547}1548 1549static const struct file_operations hl_debugfs_fops = {1550 .owner = THIS_MODULE,1551 .open = hl_debugfs_open,1552 .read = seq_read,1553 .write = hl_debugfs_write,1554 .llseek = seq_lseek,1555 .release = single_release,1556};1557 1558static void add_secured_nodes(struct hl_dbg_device_entry *dev_entry, struct dentry *root)1559{1560 debugfs_create_u8("i2c_bus",1561 0644,1562 root,1563 &dev_entry->i2c_bus);1564 1565 debugfs_create_u8("i2c_addr",1566 0644,1567 root,1568 &dev_entry->i2c_addr);1569 1570 debugfs_create_u8("i2c_reg",1571 0644,1572 root,1573 &dev_entry->i2c_reg);1574 1575 debugfs_create_u8("i2c_len",1576 0644,1577 root,1578 &dev_entry->i2c_len);1579 1580 debugfs_create_file("i2c_data",1581 0644,1582 root,1583 dev_entry,1584 &hl_i2c_data_fops);1585 1586 debugfs_create_file("led0",1587 0200,1588 root,1589 dev_entry,1590 &hl_led0_fops);1591 1592 debugfs_create_file("led1",1593 0200,1594 root,1595 dev_entry,1596 &hl_led1_fops);1597 1598 debugfs_create_file("led2",1599 0200,1600 root,1601 dev_entry,1602 &hl_led2_fops);1603}1604 1605static void add_files_to_device(struct hl_device *hdev, struct hl_dbg_device_entry *dev_entry,1606 struct dentry *root)1607{1608 int count = ARRAY_SIZE(hl_debugfs_list);1609 struct hl_debugfs_entry *entry;1610 int i;1611 1612 debugfs_create_x64("memory_scrub_val",1613 0644,1614 root,1615 &hdev->memory_scrub_val);1616 1617 debugfs_create_file("memory_scrub",1618 0200,1619 root,1620 dev_entry,1621 &hl_mem_scrub_fops);1622 1623 debugfs_create_x64("addr",1624 0644,1625 root,1626 &dev_entry->addr);1627 1628 debugfs_create_file("data32",1629 0644,1630 root,1631 dev_entry,1632 &hl_data32b_fops);1633 1634 debugfs_create_file("data64",1635 0644,1636 root,1637 dev_entry,1638 &hl_data64b_fops);1639 1640 debugfs_create_file("set_power_state",1641 0644,1642 root,1643 dev_entry,1644 &hl_power_fops);1645 1646 debugfs_create_file("device",1647 0644,1648 root,1649 dev_entry,1650 &hl_device_fops);1651 1652 debugfs_create_file("clk_gate",1653 0644,1654 root,1655 dev_entry,1656 &hl_clk_gate_fops);1657 1658 debugfs_create_file("stop_on_err",1659 0644,1660 root,1661 dev_entry,1662 &hl_stop_on_err_fops);1663 1664 debugfs_create_file("dump_security_violations",1665 0400,1666 root,1667 dev_entry,1668 &hl_security_violations_fops);1669 1670 debugfs_create_file("dump_razwi_events",1671 0400,1672 root,1673 dev_entry,1674 &hl_razwi_check_fops);1675 1676 debugfs_create_file("dma_size",1677 0200,1678 root,1679 dev_entry,1680 &hl_dma_size_fops);1681 1682 debugfs_create_blob("data_dma",1683 0400,1684 root,1685 &dev_entry->data_dma_blob_desc);1686 1687 debugfs_create_file("monitor_dump_trig",1688 0200,1689 root,1690 dev_entry,1691 &hl_monitor_dump_fops);1692 1693 debugfs_create_blob("monitor_dump",1694 0400,1695 root,1696 &dev_entry->mon_dump_blob_desc);1697 1698 debugfs_create_x8("skip_reset_on_timeout",1699 0644,1700 root,1701 &hdev->reset_info.skip_reset_on_timeout);1702 1703 debugfs_create_file("state_dump",1704 0644,1705 root,1706 dev_entry,1707 &hl_state_dump_fops);1708 1709 debugfs_create_file("timeout_locked",1710 0644,1711 root,1712 dev_entry,1713 &hl_timeout_locked_fops);1714 1715 debugfs_create_u32("device_release_watchdog_timeout",1716 0644,1717 root,1718 &hdev->device_release_watchdog_timeout_sec);1719 1720 debugfs_create_u16("server_type",1721 0444,1722 root,1723 &hdev->asic_prop.server_type);1724 1725 for (i = 0, entry = dev_entry->entry_arr ; i < count ; i++, entry++) {1726 debugfs_create_file(hl_debugfs_list[i].name,1727 0644,1728 root,1729 entry,1730 &hl_debugfs_fops);1731 entry->info_ent = &hl_debugfs_list[i];1732 entry->dev_entry = dev_entry;1733 }1734}1735 1736int hl_debugfs_device_init(struct hl_device *hdev)1737{1738 struct hl_dbg_device_entry *dev_entry = &hdev->hl_debugfs;1739 int count = ARRAY_SIZE(hl_debugfs_list);1740 1741 dev_entry->hdev = hdev;1742 dev_entry->entry_arr = kmalloc_array(count, sizeof(struct hl_debugfs_entry), GFP_KERNEL);1743 if (!dev_entry->entry_arr)1744 return -ENOMEM;1745 1746 dev_entry->data_dma_blob_desc.size = 0;1747 dev_entry->data_dma_blob_desc.data = NULL;1748 dev_entry->mon_dump_blob_desc.size = 0;1749 dev_entry->mon_dump_blob_desc.data = NULL;1750 1751 INIT_LIST_HEAD(&dev_entry->file_list);1752 INIT_LIST_HEAD(&dev_entry->cb_list);1753 INIT_LIST_HEAD(&dev_entry->cs_list);1754 INIT_LIST_HEAD(&dev_entry->cs_job_list);1755 INIT_LIST_HEAD(&dev_entry->userptr_list);1756 INIT_LIST_HEAD(&dev_entry->ctx_mem_hash_list);1757 mutex_init(&dev_entry->file_mutex);1758 init_rwsem(&dev_entry->state_dump_sem);1759 spin_lock_init(&dev_entry->cb_spinlock);1760 spin_lock_init(&dev_entry->cs_spinlock);1761 spin_lock_init(&dev_entry->cs_job_spinlock);1762 spin_lock_init(&dev_entry->userptr_spinlock);1763 mutex_init(&dev_entry->ctx_mem_hash_mutex);1764 1765 return 0;1766}1767 1768void hl_debugfs_device_fini(struct hl_device *hdev)1769{1770 struct hl_dbg_device_entry *entry = &hdev->hl_debugfs;1771 int i;1772 1773 mutex_destroy(&entry->ctx_mem_hash_mutex);1774 mutex_destroy(&entry->file_mutex);1775 1776 vfree(entry->data_dma_blob_desc.data);1777 vfree(entry->mon_dump_blob_desc.data);1778 1779 for (i = 0; i < ARRAY_SIZE(entry->state_dump); ++i)1780 vfree(entry->state_dump[i]);1781 1782 kfree(entry->entry_arr);1783}1784 1785void hl_debugfs_add_device(struct hl_device *hdev)1786{1787 struct hl_dbg_device_entry *dev_entry = &hdev->hl_debugfs;1788 1789 dev_entry->root = hdev->drm.accel->debugfs_root;1790 1791 add_files_to_device(hdev, dev_entry, dev_entry->root);1792 1793 if (!hdev->asic_prop.fw_security_enabled)1794 add_secured_nodes(dev_entry, dev_entry->root);1795}1796 1797void hl_debugfs_add_file(struct hl_fpriv *hpriv)1798{1799 struct hl_dbg_device_entry *dev_entry = &hpriv->hdev->hl_debugfs;1800 1801 mutex_lock(&dev_entry->file_mutex);1802 list_add(&hpriv->debugfs_list, &dev_entry->file_list);1803 mutex_unlock(&dev_entry->file_mutex);1804}1805 1806void hl_debugfs_remove_file(struct hl_fpriv *hpriv)1807{1808 struct hl_dbg_device_entry *dev_entry = &hpriv->hdev->hl_debugfs;1809 1810 mutex_lock(&dev_entry->file_mutex);1811 list_del(&hpriv->debugfs_list);1812 mutex_unlock(&dev_entry->file_mutex);1813}1814 1815void hl_debugfs_add_cb(struct hl_cb *cb)1816{1817 struct hl_dbg_device_entry *dev_entry = &cb->hdev->hl_debugfs;1818 1819 spin_lock(&dev_entry->cb_spinlock);1820 list_add(&cb->debugfs_list, &dev_entry->cb_list);1821 spin_unlock(&dev_entry->cb_spinlock);1822}1823 1824void hl_debugfs_remove_cb(struct hl_cb *cb)1825{1826 struct hl_dbg_device_entry *dev_entry = &cb->hdev->hl_debugfs;1827 1828 spin_lock(&dev_entry->cb_spinlock);1829 list_del(&cb->debugfs_list);1830 spin_unlock(&dev_entry->cb_spinlock);1831}1832 1833void hl_debugfs_add_cs(struct hl_cs *cs)1834{1835 struct hl_dbg_device_entry *dev_entry = &cs->ctx->hdev->hl_debugfs;1836 1837 spin_lock(&dev_entry->cs_spinlock);1838 list_add(&cs->debugfs_list, &dev_entry->cs_list);1839 spin_unlock(&dev_entry->cs_spinlock);1840}1841 1842void hl_debugfs_remove_cs(struct hl_cs *cs)1843{1844 struct hl_dbg_device_entry *dev_entry = &cs->ctx->hdev->hl_debugfs;1845 1846 spin_lock(&dev_entry->cs_spinlock);1847 list_del(&cs->debugfs_list);1848 spin_unlock(&dev_entry->cs_spinlock);1849}1850 1851void hl_debugfs_add_job(struct hl_device *hdev, struct hl_cs_job *job)1852{1853 struct hl_dbg_device_entry *dev_entry = &hdev->hl_debugfs;1854 1855 spin_lock(&dev_entry->cs_job_spinlock);1856 list_add(&job->debugfs_list, &dev_entry->cs_job_list);1857 spin_unlock(&dev_entry->cs_job_spinlock);1858}1859 1860void hl_debugfs_remove_job(struct hl_device *hdev, struct hl_cs_job *job)1861{1862 struct hl_dbg_device_entry *dev_entry = &hdev->hl_debugfs;1863 1864 spin_lock(&dev_entry->cs_job_spinlock);1865 list_del(&job->debugfs_list);1866 spin_unlock(&dev_entry->cs_job_spinlock);1867}1868 1869void hl_debugfs_add_userptr(struct hl_device *hdev, struct hl_userptr *userptr)1870{1871 struct hl_dbg_device_entry *dev_entry = &hdev->hl_debugfs;1872 1873 spin_lock(&dev_entry->userptr_spinlock);1874 list_add(&userptr->debugfs_list, &dev_entry->userptr_list);1875 spin_unlock(&dev_entry->userptr_spinlock);1876}1877 1878void hl_debugfs_remove_userptr(struct hl_device *hdev,1879 struct hl_userptr *userptr)1880{1881 struct hl_dbg_device_entry *dev_entry = &hdev->hl_debugfs;1882 1883 spin_lock(&dev_entry->userptr_spinlock);1884 list_del(&userptr->debugfs_list);1885 spin_unlock(&dev_entry->userptr_spinlock);1886}1887 1888void hl_debugfs_add_ctx_mem_hash(struct hl_device *hdev, struct hl_ctx *ctx)1889{1890 struct hl_dbg_device_entry *dev_entry = &hdev->hl_debugfs;1891 1892 mutex_lock(&dev_entry->ctx_mem_hash_mutex);1893 list_add(&ctx->debugfs_list, &dev_entry->ctx_mem_hash_list);1894 mutex_unlock(&dev_entry->ctx_mem_hash_mutex);1895}1896 1897void hl_debugfs_remove_ctx_mem_hash(struct hl_device *hdev, struct hl_ctx *ctx)1898{1899 struct hl_dbg_device_entry *dev_entry = &hdev->hl_debugfs;1900 1901 mutex_lock(&dev_entry->ctx_mem_hash_mutex);1902 list_del(&ctx->debugfs_list);1903 mutex_unlock(&dev_entry->ctx_mem_hash_mutex);1904}1905 1906/**1907 * hl_debugfs_set_state_dump - register state dump making it accessible via1908 * debugfs1909 * @hdev: pointer to the device structure1910 * @data: the actual dump data1911 * @length: the length of the data1912 */1913void hl_debugfs_set_state_dump(struct hl_device *hdev, char *data,1914 unsigned long length)1915{1916 struct hl_dbg_device_entry *dev_entry = &hdev->hl_debugfs;1917 1918 down_write(&dev_entry->state_dump_sem);1919 1920 dev_entry->state_dump_head = (dev_entry->state_dump_head + 1) %1921 ARRAY_SIZE(dev_entry->state_dump);1922 vfree(dev_entry->state_dump[dev_entry->state_dump_head]);1923 dev_entry->state_dump[dev_entry->state_dump_head] = data;1924 1925 up_write(&dev_entry->state_dump_sem);1926}1927