| 1 | // SPDX-License-Identifier: GPL-2.0 |
| 2 | |
| 3 | /* |
| 4 | * Copyright 2016-2021 HabanaLabs, Ltd. |
| 5 | * All Rights Reserved. |
| 6 | */ |
| 7 | |
| 8 | #include "habanalabs.h" |
| 9 | #include "hldio.h" |
| 10 | #include "../include/hw_ip/mmu/mmu_general.h" |
| 11 | |
| 12 | #include <linux/pci.h> |
| 13 | #include <linux/uaccess.h> |
| 14 | #include <linux/vmalloc.h> |
| 15 | #include <linux/iommu.h> |
| 16 | |
| 17 | #define MMU_ADDR_BUF_SIZE 40 |
| 18 | #define MMU_ASID_BUF_SIZE 10 |
| 19 | #define MMU_KBUF_SIZE (MMU_ADDR_BUF_SIZE + MMU_ASID_BUF_SIZE) |
| 20 | #define I2C_MAX_TRANSACTION_LEN 8 |
| 21 | |
| 22 | static int hl_debugfs_i2c_read(struct hl_device *hdev, u8 i2c_bus, u8 i2c_addr, |
| 23 | u8 i2c_reg, u8 i2c_len, u64 *val) |
| 24 | { |
| 25 | struct cpucp_packet pkt; |
| 26 | int rc; |
| 27 | |
| 28 | if (!hl_device_operational(hdev, NULL)) |
| 29 | return -EBUSY; |
| 30 | |
| 31 | if (i2c_len > I2C_MAX_TRANSACTION_LEN) { |
| 32 | dev_err(hdev->dev, "I2C transaction length %u, exceeds maximum of %u\n" , |
| 33 | i2c_len, I2C_MAX_TRANSACTION_LEN); |
| 34 | return -EINVAL; |
| 35 | } |
| 36 | |
| 37 | memset(&pkt, 0, sizeof(pkt)); |
| 38 | |
| 39 | pkt.ctl = cpu_to_le32(CPUCP_PACKET_I2C_RD << |
| 40 | CPUCP_PKT_CTL_OPCODE_SHIFT); |
| 41 | pkt.i2c_bus = i2c_bus; |
| 42 | pkt.i2c_addr = i2c_addr; |
| 43 | pkt.i2c_reg = i2c_reg; |
| 44 | pkt.i2c_len = i2c_len; |
| 45 | |
| 46 | rc = hdev->asic_funcs->send_cpu_message(hdev, (u32 *) &pkt, sizeof(pkt), 0, val); |
| 47 | if (rc && rc != -EAGAIN) |
| 48 | dev_err(hdev->dev, "Failed to read from I2C, error %d\n" , rc); |
| 49 | |
| 50 | return rc; |
| 51 | } |
| 52 | |
| 53 | static int hl_debugfs_i2c_write(struct hl_device *hdev, u8 i2c_bus, u8 i2c_addr, |
| 54 | u8 i2c_reg, u8 i2c_len, u64 val) |
| 55 | { |
| 56 | struct cpucp_packet pkt; |
| 57 | int rc; |
| 58 | |
| 59 | if (!hl_device_operational(hdev, NULL)) |
| 60 | return -EBUSY; |
| 61 | |
| 62 | if (i2c_len > I2C_MAX_TRANSACTION_LEN) { |
| 63 | dev_err(hdev->dev, "I2C transaction length %u, exceeds maximum of %u\n" , |
| 64 | i2c_len, I2C_MAX_TRANSACTION_LEN); |
| 65 | return -EINVAL; |
| 66 | } |
| 67 | |
| 68 | memset(&pkt, 0, sizeof(pkt)); |
| 69 | |
| 70 | pkt.ctl = cpu_to_le32(CPUCP_PACKET_I2C_WR << |
| 71 | CPUCP_PKT_CTL_OPCODE_SHIFT); |
| 72 | pkt.i2c_bus = i2c_bus; |
| 73 | pkt.i2c_addr = i2c_addr; |
| 74 | pkt.i2c_reg = i2c_reg; |
| 75 | pkt.i2c_len = i2c_len; |
| 76 | pkt.value = cpu_to_le64(val); |
| 77 | |
| 78 | rc = hdev->asic_funcs->send_cpu_message(hdev, (u32 *) &pkt, sizeof(pkt), 0, NULL); |
| 79 | if (rc && rc != -EAGAIN) |
| 80 | dev_err(hdev->dev, "Failed to write to I2C, error %d\n" , rc); |
| 81 | |
| 82 | return rc; |
| 83 | } |
| 84 | |
| 85 | static void hl_debugfs_led_set(struct hl_device *hdev, u8 led, u8 state) |
| 86 | { |
| 87 | struct cpucp_packet pkt; |
| 88 | int rc; |
| 89 | |
| 90 | if (!hl_device_operational(hdev, NULL)) |
| 91 | return; |
| 92 | |
| 93 | memset(&pkt, 0, sizeof(pkt)); |
| 94 | |
| 95 | pkt.ctl = cpu_to_le32(CPUCP_PACKET_LED_SET << |
| 96 | CPUCP_PKT_CTL_OPCODE_SHIFT); |
| 97 | pkt.led_index = cpu_to_le32(led); |
| 98 | pkt.value = cpu_to_le64(state); |
| 99 | |
| 100 | rc = hdev->asic_funcs->send_cpu_message(hdev, (u32 *) &pkt, sizeof(pkt), 0, NULL); |
| 101 | if (rc && rc != -EAGAIN) |
| 102 | dev_err(hdev->dev, "Failed to set LED %d, error %d\n" , led, rc); |
| 103 | } |
| 104 | |
| 105 | static int command_buffers_show(struct seq_file *s, void *data) |
| 106 | { |
| 107 | struct hl_debugfs_entry *entry = s->private; |
| 108 | struct hl_dbg_device_entry *dev_entry = entry->dev_entry; |
| 109 | struct hl_cb *cb; |
| 110 | bool first = true; |
| 111 | |
| 112 | spin_lock(lock: &dev_entry->cb_spinlock); |
| 113 | |
| 114 | list_for_each_entry(cb, &dev_entry->cb_list, debugfs_list) { |
| 115 | if (first) { |
| 116 | first = false; |
| 117 | seq_puts(m: s, s: "\n" ); |
| 118 | seq_puts(m: s, s: " CB ID CTX ID CB size CB RefCnt mmap? CS counter\n" ); |
| 119 | seq_puts(m: s, s: "---------------------------------------------------------------\n" ); |
| 120 | } |
| 121 | seq_printf(m: s, |
| 122 | fmt: " %03llu %d 0x%08x %d %d %d\n" , |
| 123 | cb->buf->handle, cb->ctx->asid, cb->size, |
| 124 | kref_read(kref: &cb->buf->refcount), |
| 125 | atomic_read(v: &cb->buf->mmap), atomic_read(v: &cb->cs_cnt)); |
| 126 | } |
| 127 | |
| 128 | spin_unlock(lock: &dev_entry->cb_spinlock); |
| 129 | |
| 130 | if (!first) |
| 131 | seq_puts(m: s, s: "\n" ); |
| 132 | |
| 133 | return 0; |
| 134 | } |
| 135 | |
| 136 | static int command_submission_show(struct seq_file *s, void *data) |
| 137 | { |
| 138 | struct hl_debugfs_entry *entry = s->private; |
| 139 | struct hl_dbg_device_entry *dev_entry = entry->dev_entry; |
| 140 | struct hl_cs *cs; |
| 141 | bool first = true; |
| 142 | |
| 143 | spin_lock(lock: &dev_entry->cs_spinlock); |
| 144 | |
| 145 | list_for_each_entry(cs, &dev_entry->cs_list, debugfs_list) { |
| 146 | if (first) { |
| 147 | first = false; |
| 148 | seq_puts(m: s, s: "\n" ); |
| 149 | seq_puts(m: s, s: " CS ID CS TYPE CTX ASID CS RefCnt Submitted Completed\n" ); |
| 150 | seq_puts(m: s, s: "----------------------------------------------------------------\n" ); |
| 151 | } |
| 152 | seq_printf(m: s, |
| 153 | fmt: " %llu %d %d %d %d %d\n" , |
| 154 | cs->sequence, cs->type, cs->ctx->asid, |
| 155 | kref_read(kref: &cs->refcount), |
| 156 | cs->submitted, cs->completed); |
| 157 | } |
| 158 | |
| 159 | spin_unlock(lock: &dev_entry->cs_spinlock); |
| 160 | |
| 161 | if (!first) |
| 162 | seq_puts(m: s, s: "\n" ); |
| 163 | |
| 164 | return 0; |
| 165 | } |
| 166 | |
| 167 | static int command_submission_jobs_show(struct seq_file *s, void *data) |
| 168 | { |
| 169 | struct hl_debugfs_entry *entry = s->private; |
| 170 | struct hl_dbg_device_entry *dev_entry = entry->dev_entry; |
| 171 | struct hl_cs_job *job; |
| 172 | bool first = true; |
| 173 | |
| 174 | spin_lock(lock: &dev_entry->cs_job_spinlock); |
| 175 | |
| 176 | list_for_each_entry(job, &dev_entry->cs_job_list, debugfs_list) { |
| 177 | if (first) { |
| 178 | first = false; |
| 179 | seq_puts(m: s, s: "\n" ); |
| 180 | seq_puts(m: s, s: " JOB ID CS ID CS TYPE CTX ASID JOB RefCnt H/W Queue\n" ); |
| 181 | seq_puts(m: s, s: "---------------------------------------------------------------\n" ); |
| 182 | } |
| 183 | if (job->cs) |
| 184 | seq_printf(m: s, |
| 185 | fmt: " %02d %llu %d %d %d %d\n" , |
| 186 | job->id, job->cs->sequence, job->cs->type, |
| 187 | job->cs->ctx->asid, kref_read(kref: &job->refcount), |
| 188 | job->hw_queue_id); |
| 189 | else |
| 190 | seq_printf(m: s, |
| 191 | fmt: " %02d 0 0 %d %d %d\n" , |
| 192 | job->id, HL_KERNEL_ASID_ID, |
| 193 | kref_read(kref: &job->refcount), job->hw_queue_id); |
| 194 | } |
| 195 | |
| 196 | spin_unlock(lock: &dev_entry->cs_job_spinlock); |
| 197 | |
| 198 | if (!first) |
| 199 | seq_puts(m: s, s: "\n" ); |
| 200 | |
| 201 | return 0; |
| 202 | } |
| 203 | |
| 204 | static int userptr_show(struct seq_file *s, void *data) |
| 205 | { |
| 206 | struct hl_debugfs_entry *entry = s->private; |
| 207 | struct hl_dbg_device_entry *dev_entry = entry->dev_entry; |
| 208 | struct hl_userptr *userptr; |
| 209 | char dma_dir[4][30] = {"DMA_BIDIRECTIONAL" , "DMA_TO_DEVICE" , |
| 210 | "DMA_FROM_DEVICE" , "DMA_NONE" }; |
| 211 | bool first = true; |
| 212 | |
| 213 | spin_lock(lock: &dev_entry->userptr_spinlock); |
| 214 | |
| 215 | list_for_each_entry(userptr, &dev_entry->userptr_list, debugfs_list) { |
| 216 | if (first) { |
| 217 | first = false; |
| 218 | seq_puts(m: s, s: "\n" ); |
| 219 | seq_puts(m: s, s: " pid user virtual address size dma dir\n" ); |
| 220 | seq_puts(m: s, s: "----------------------------------------------------------\n" ); |
| 221 | } |
| 222 | seq_printf(m: s, fmt: " %-7d 0x%-14llx %-10llu %-30s\n" , |
| 223 | userptr->pid, userptr->addr, userptr->size, |
| 224 | dma_dir[userptr->dir]); |
| 225 | } |
| 226 | |
| 227 | spin_unlock(lock: &dev_entry->userptr_spinlock); |
| 228 | |
| 229 | if (!first) |
| 230 | seq_puts(m: s, s: "\n" ); |
| 231 | |
| 232 | return 0; |
| 233 | } |
| 234 | |
| 235 | static int vm_show(struct seq_file *s, void *data) |
| 236 | { |
| 237 | struct hl_debugfs_entry *entry = s->private; |
| 238 | struct hl_dbg_device_entry *dev_entry = entry->dev_entry; |
| 239 | struct hl_vm_hw_block_list_node *lnode; |
| 240 | struct hl_ctx *ctx; |
| 241 | struct hl_vm *vm; |
| 242 | struct hl_vm_hash_node *hnode; |
| 243 | struct hl_userptr *userptr; |
| 244 | struct hl_vm_phys_pg_pack *phys_pg_pack = NULL; |
| 245 | struct hl_va_range *va_range; |
| 246 | struct hl_vm_va_block *va_block; |
| 247 | enum vm_type *vm_type; |
| 248 | bool once = true; |
| 249 | u64 j; |
| 250 | int i; |
| 251 | |
| 252 | mutex_lock(&dev_entry->ctx_mem_hash_mutex); |
| 253 | |
| 254 | list_for_each_entry(ctx, &dev_entry->ctx_mem_hash_list, debugfs_list) { |
| 255 | once = false; |
| 256 | seq_puts(m: s, s: "\n\n----------------------------------------------------" ); |
| 257 | seq_puts(m: s, s: "\n----------------------------------------------------\n\n" ); |
| 258 | seq_printf(m: s, fmt: "ctx asid: %u\n" , ctx->asid); |
| 259 | |
| 260 | seq_puts(m: s, s: "\nmappings:\n\n" ); |
| 261 | seq_puts(m: s, s: " virtual address size handle\n" ); |
| 262 | seq_puts(m: s, s: "----------------------------------------------------\n" ); |
| 263 | mutex_lock(&ctx->mem_hash_lock); |
| 264 | hash_for_each(ctx->mem_hash, i, hnode, node) { |
| 265 | vm_type = hnode->ptr; |
| 266 | |
| 267 | if (*vm_type == VM_TYPE_USERPTR) { |
| 268 | userptr = hnode->ptr; |
| 269 | seq_printf(m: s, |
| 270 | fmt: " 0x%-14llx %-10llu\n" , |
| 271 | hnode->vaddr, userptr->size); |
| 272 | } else { |
| 273 | phys_pg_pack = hnode->ptr; |
| 274 | seq_printf(m: s, |
| 275 | fmt: " 0x%-14llx %-10llu %-4u\n" , |
| 276 | hnode->vaddr, phys_pg_pack->total_size, |
| 277 | phys_pg_pack->handle); |
| 278 | } |
| 279 | } |
| 280 | mutex_unlock(lock: &ctx->mem_hash_lock); |
| 281 | |
| 282 | if (ctx->asid != HL_KERNEL_ASID_ID && |
| 283 | !list_empty(head: &ctx->hw_block_mem_list)) { |
| 284 | seq_puts(m: s, s: "\nhw_block mappings:\n\n" ); |
| 285 | seq_puts(m: s, |
| 286 | s: " virtual address block size mapped size HW block id\n" ); |
| 287 | seq_puts(m: s, |
| 288 | s: "---------------------------------------------------------------\n" ); |
| 289 | mutex_lock(&ctx->hw_block_list_lock); |
| 290 | list_for_each_entry(lnode, &ctx->hw_block_mem_list, node) { |
| 291 | seq_printf(m: s, |
| 292 | fmt: " 0x%-14lx %-6u %-6u %-9u\n" , |
| 293 | lnode->vaddr, lnode->block_size, lnode->mapped_size, |
| 294 | lnode->id); |
| 295 | } |
| 296 | mutex_unlock(lock: &ctx->hw_block_list_lock); |
| 297 | } |
| 298 | |
| 299 | vm = &ctx->hdev->vm; |
| 300 | spin_lock(lock: &vm->idr_lock); |
| 301 | |
| 302 | if (!idr_is_empty(idr: &vm->phys_pg_pack_handles)) |
| 303 | seq_puts(m: s, s: "\n\nallocations:\n" ); |
| 304 | |
| 305 | idr_for_each_entry(&vm->phys_pg_pack_handles, phys_pg_pack, i) { |
| 306 | if (phys_pg_pack->asid != ctx->asid) |
| 307 | continue; |
| 308 | |
| 309 | seq_printf(m: s, fmt: "\nhandle: %u\n" , phys_pg_pack->handle); |
| 310 | seq_printf(m: s, fmt: "page size: %u\n\n" , |
| 311 | phys_pg_pack->page_size); |
| 312 | seq_puts(m: s, s: " physical address\n" ); |
| 313 | seq_puts(m: s, s: "---------------------\n" ); |
| 314 | for (j = 0 ; j < phys_pg_pack->npages ; j++) { |
| 315 | seq_printf(m: s, fmt: " 0x%-14llx\n" , |
| 316 | phys_pg_pack->pages[j]); |
| 317 | } |
| 318 | } |
| 319 | spin_unlock(lock: &vm->idr_lock); |
| 320 | |
| 321 | } |
| 322 | |
| 323 | mutex_unlock(lock: &dev_entry->ctx_mem_hash_mutex); |
| 324 | |
| 325 | ctx = hl_get_compute_ctx(hdev: dev_entry->hdev); |
| 326 | if (ctx) { |
| 327 | seq_puts(m: s, s: "\nVA ranges:\n\n" ); |
| 328 | for (i = HL_VA_RANGE_TYPE_HOST ; i < HL_VA_RANGE_TYPE_MAX ; ++i) { |
| 329 | va_range = ctx->va_range[i]; |
| 330 | seq_printf(m: s, fmt: " va_range %d\n" , i); |
| 331 | seq_puts(m: s, s: "---------------------\n" ); |
| 332 | mutex_lock(&va_range->lock); |
| 333 | list_for_each_entry(va_block, &va_range->list, node) { |
| 334 | seq_printf(m: s, fmt: "%#16llx - %#16llx (%#llx)\n" , |
| 335 | va_block->start, va_block->end, |
| 336 | va_block->size); |
| 337 | } |
| 338 | mutex_unlock(lock: &va_range->lock); |
| 339 | seq_puts(m: s, s: "\n" ); |
| 340 | } |
| 341 | hl_ctx_put(ctx); |
| 342 | } |
| 343 | |
| 344 | if (!once) |
| 345 | seq_puts(m: s, s: "\n" ); |
| 346 | |
| 347 | return 0; |
| 348 | } |
| 349 | |
| 350 | static int userptr_lookup_show(struct seq_file *s, void *data) |
| 351 | { |
| 352 | struct hl_debugfs_entry *entry = s->private; |
| 353 | struct hl_dbg_device_entry *dev_entry = entry->dev_entry; |
| 354 | struct scatterlist *sg; |
| 355 | struct hl_userptr *userptr; |
| 356 | bool first = true; |
| 357 | u64 total_npages, npages, sg_start, sg_end; |
| 358 | dma_addr_t dma_addr; |
| 359 | int i; |
| 360 | |
| 361 | spin_lock(lock: &dev_entry->userptr_spinlock); |
| 362 | |
| 363 | list_for_each_entry(userptr, &dev_entry->userptr_list, debugfs_list) { |
| 364 | if (dev_entry->userptr_lookup >= userptr->addr && |
| 365 | dev_entry->userptr_lookup < userptr->addr + userptr->size) { |
| 366 | total_npages = 0; |
| 367 | for_each_sgtable_dma_sg(userptr->sgt, sg, i) { |
| 368 | npages = hl_get_sg_info(sg, dma_addr: &dma_addr); |
| 369 | sg_start = userptr->addr + |
| 370 | total_npages * PAGE_SIZE; |
| 371 | sg_end = userptr->addr + |
| 372 | (total_npages + npages) * PAGE_SIZE; |
| 373 | |
| 374 | if (dev_entry->userptr_lookup >= sg_start && |
| 375 | dev_entry->userptr_lookup < sg_end) { |
| 376 | dma_addr += (dev_entry->userptr_lookup - |
| 377 | sg_start); |
| 378 | if (first) { |
| 379 | first = false; |
| 380 | seq_puts(m: s, s: "\n" ); |
| 381 | seq_puts(m: s, s: " user virtual address dma address pid region start region size\n" ); |
| 382 | seq_puts(m: s, s: "---------------------------------------------------------------------------------------\n" ); |
| 383 | } |
| 384 | seq_printf(m: s, fmt: " 0x%-18llx 0x%-16llx %-8u 0x%-16llx %-12llu\n" , |
| 385 | dev_entry->userptr_lookup, |
| 386 | (u64)dma_addr, userptr->pid, |
| 387 | userptr->addr, userptr->size); |
| 388 | } |
| 389 | total_npages += npages; |
| 390 | } |
| 391 | } |
| 392 | } |
| 393 | |
| 394 | spin_unlock(lock: &dev_entry->userptr_spinlock); |
| 395 | |
| 396 | if (!first) |
| 397 | seq_puts(m: s, s: "\n" ); |
| 398 | |
| 399 | return 0; |
| 400 | } |
| 401 | |
| 402 | static ssize_t userptr_lookup_write(struct file *file, const char __user *buf, |
| 403 | size_t count, loff_t *f_pos) |
| 404 | { |
| 405 | struct seq_file *s = file->private_data; |
| 406 | struct hl_debugfs_entry *entry = s->private; |
| 407 | struct hl_dbg_device_entry *dev_entry = entry->dev_entry; |
| 408 | ssize_t rc; |
| 409 | u64 value; |
| 410 | |
| 411 | rc = kstrtoull_from_user(s: buf, count, base: 16, res: &value); |
| 412 | if (rc) |
| 413 | return rc; |
| 414 | |
| 415 | dev_entry->userptr_lookup = value; |
| 416 | |
| 417 | return count; |
| 418 | } |
| 419 | |
| 420 | static int mmu_show(struct seq_file *s, void *data) |
| 421 | { |
| 422 | struct hl_debugfs_entry *entry = s->private; |
| 423 | struct hl_dbg_device_entry *dev_entry = entry->dev_entry; |
| 424 | struct hl_device *hdev = dev_entry->hdev; |
| 425 | struct hl_ctx *ctx; |
| 426 | struct hl_mmu_hop_info hops_info = {0}; |
| 427 | u64 virt_addr = dev_entry->mmu_addr, phys_addr; |
| 428 | int i; |
| 429 | |
| 430 | if (dev_entry->mmu_asid == HL_KERNEL_ASID_ID) |
| 431 | ctx = hdev->kernel_ctx; |
| 432 | else |
| 433 | ctx = hl_get_compute_ctx(hdev); |
| 434 | |
| 435 | if (!ctx) { |
| 436 | dev_err(hdev->dev, "no ctx available\n" ); |
| 437 | return 0; |
| 438 | } |
| 439 | |
| 440 | if (hl_mmu_get_tlb_info(ctx, virt_addr, hops: &hops_info)) { |
| 441 | dev_err(hdev->dev, "virt addr 0x%llx is not mapped to phys addr\n" , |
| 442 | virt_addr); |
| 443 | goto put_ctx; |
| 444 | } |
| 445 | |
| 446 | hl_mmu_va_to_pa(ctx, virt_addr, phys_addr: &phys_addr); |
| 447 | |
| 448 | if (hops_info.scrambled_vaddr && |
| 449 | (dev_entry->mmu_addr != hops_info.scrambled_vaddr)) |
| 450 | seq_printf(m: s, |
| 451 | fmt: "asid: %u, virt_addr: 0x%llx, scrambled virt_addr: 0x%llx,\nphys_addr: 0x%llx, scrambled_phys_addr: 0x%llx\n" , |
| 452 | dev_entry->mmu_asid, dev_entry->mmu_addr, |
| 453 | hops_info.scrambled_vaddr, |
| 454 | hops_info.unscrambled_paddr, phys_addr); |
| 455 | else |
| 456 | seq_printf(m: s, |
| 457 | fmt: "asid: %u, virt_addr: 0x%llx, phys_addr: 0x%llx\n" , |
| 458 | dev_entry->mmu_asid, dev_entry->mmu_addr, phys_addr); |
| 459 | |
| 460 | for (i = 0 ; i < hops_info.used_hops ; i++) { |
| 461 | seq_printf(m: s, fmt: "hop%d_addr: 0x%llx\n" , |
| 462 | i, hops_info.hop_info[i].hop_addr); |
| 463 | seq_printf(m: s, fmt: "hop%d_pte_addr: 0x%llx\n" , |
| 464 | i, hops_info.hop_info[i].hop_pte_addr); |
| 465 | seq_printf(m: s, fmt: "hop%d_pte: 0x%llx\n" , |
| 466 | i, hops_info.hop_info[i].hop_pte_val); |
| 467 | } |
| 468 | |
| 469 | put_ctx: |
| 470 | if (dev_entry->mmu_asid != HL_KERNEL_ASID_ID) |
| 471 | hl_ctx_put(ctx); |
| 472 | |
| 473 | return 0; |
| 474 | } |
| 475 | |
| 476 | static ssize_t mmu_asid_va_write(struct file *file, const char __user *buf, |
| 477 | size_t count, loff_t *f_pos) |
| 478 | { |
| 479 | struct seq_file *s = file->private_data; |
| 480 | struct hl_debugfs_entry *entry = s->private; |
| 481 | struct hl_dbg_device_entry *dev_entry = entry->dev_entry; |
| 482 | struct hl_device *hdev = dev_entry->hdev; |
| 483 | char kbuf[MMU_KBUF_SIZE] = {0}; |
| 484 | char *c; |
| 485 | ssize_t rc; |
| 486 | |
| 487 | if (count > sizeof(kbuf) - 1) |
| 488 | goto err; |
| 489 | if (copy_from_user(to: kbuf, from: buf, n: count)) |
| 490 | goto err; |
| 491 | kbuf[count] = 0; |
| 492 | |
| 493 | c = strchr(kbuf, ' '); |
| 494 | if (!c) |
| 495 | goto err; |
| 496 | *c = '\0'; |
| 497 | |
| 498 | rc = kstrtouint(s: kbuf, base: 10, res: &dev_entry->mmu_asid); |
| 499 | if (rc) |
| 500 | goto err; |
| 501 | |
| 502 | if (strncmp(c+1, "0x" , 2)) |
| 503 | goto err; |
| 504 | rc = kstrtoull(s: c+3, base: 16, res: &dev_entry->mmu_addr); |
| 505 | if (rc) |
| 506 | goto err; |
| 507 | |
| 508 | return count; |
| 509 | |
| 510 | err: |
| 511 | dev_err(hdev->dev, "usage: echo <asid> <0xaddr> > mmu\n" ); |
| 512 | |
| 513 | return -EINVAL; |
| 514 | } |
| 515 | |
| 516 | static int mmu_ack_error(struct seq_file *s, void *data) |
| 517 | { |
| 518 | struct hl_debugfs_entry *entry = s->private; |
| 519 | struct hl_dbg_device_entry *dev_entry = entry->dev_entry; |
| 520 | struct hl_device *hdev = dev_entry->hdev; |
| 521 | int rc; |
| 522 | |
| 523 | if (!dev_entry->mmu_cap_mask) { |
| 524 | dev_err(hdev->dev, "mmu_cap_mask is not set\n" ); |
| 525 | goto err; |
| 526 | } |
| 527 | |
| 528 | rc = hdev->asic_funcs->ack_mmu_errors(hdev, dev_entry->mmu_cap_mask); |
| 529 | if (rc) |
| 530 | goto err; |
| 531 | |
| 532 | return 0; |
| 533 | err: |
| 534 | return -EINVAL; |
| 535 | } |
| 536 | |
| 537 | static ssize_t mmu_ack_error_value_write(struct file *file, |
| 538 | const char __user *buf, |
| 539 | size_t count, loff_t *f_pos) |
| 540 | { |
| 541 | struct seq_file *s = file->private_data; |
| 542 | struct hl_debugfs_entry *entry = s->private; |
| 543 | struct hl_dbg_device_entry *dev_entry = entry->dev_entry; |
| 544 | struct hl_device *hdev = dev_entry->hdev; |
| 545 | char kbuf[MMU_KBUF_SIZE] = {0}; |
| 546 | ssize_t rc; |
| 547 | |
| 548 | if (count > sizeof(kbuf) - 1) |
| 549 | goto err; |
| 550 | |
| 551 | if (copy_from_user(to: kbuf, from: buf, n: count)) |
| 552 | goto err; |
| 553 | |
| 554 | kbuf[count] = 0; |
| 555 | |
| 556 | if (strncmp(kbuf, "0x" , 2)) |
| 557 | goto err; |
| 558 | |
| 559 | rc = kstrtoull(s: kbuf, base: 16, res: &dev_entry->mmu_cap_mask); |
| 560 | if (rc) |
| 561 | goto err; |
| 562 | |
| 563 | return count; |
| 564 | err: |
| 565 | dev_err(hdev->dev, "usage: echo <0xmmu_cap_mask > > mmu_error\n" ); |
| 566 | |
| 567 | return -EINVAL; |
| 568 | } |
| 569 | |
| 570 | static int engines_show(struct seq_file *s, void *data) |
| 571 | { |
| 572 | struct hl_debugfs_entry *entry = s->private; |
| 573 | struct hl_dbg_device_entry *dev_entry = entry->dev_entry; |
| 574 | struct hl_device *hdev = dev_entry->hdev; |
| 575 | struct engines_data eng_data; |
| 576 | |
| 577 | if (hdev->reset_info.in_reset) { |
| 578 | dev_warn_ratelimited(hdev->dev, |
| 579 | "Can't check device idle during reset\n" ); |
| 580 | return 0; |
| 581 | } |
| 582 | |
| 583 | eng_data.actual_size = 0; |
| 584 | eng_data.allocated_buf_size = HL_ENGINES_DATA_MAX_SIZE; |
| 585 | eng_data.buf = vmalloc(eng_data.allocated_buf_size); |
| 586 | if (!eng_data.buf) |
| 587 | return -ENOMEM; |
| 588 | |
| 589 | hdev->asic_funcs->is_device_idle(hdev, NULL, 0, &eng_data); |
| 590 | |
| 591 | if (eng_data.actual_size > eng_data.allocated_buf_size) { |
| 592 | dev_err(hdev->dev, |
| 593 | "Engines data size (%d Bytes) is bigger than allocated size (%u Bytes)\n" , |
| 594 | eng_data.actual_size, eng_data.allocated_buf_size); |
| 595 | vfree(addr: eng_data.buf); |
| 596 | return -ENOMEM; |
| 597 | } |
| 598 | |
| 599 | seq_write(seq: s, data: eng_data.buf, len: eng_data.actual_size); |
| 600 | |
| 601 | vfree(addr: eng_data.buf); |
| 602 | |
| 603 | return 0; |
| 604 | } |
| 605 | |
| 606 | #ifdef CONFIG_HL_HLDIO |
| 607 | /* DIO debugfs functions following the standard pattern */ |
| 608 | static int dio_ssd2hl_show(struct seq_file *s, void *data) |
| 609 | { |
| 610 | struct hl_debugfs_entry *entry = s->private; |
| 611 | struct hl_dbg_device_entry *dev_entry = entry->dev_entry; |
| 612 | struct hl_device *hdev = dev_entry->hdev; |
| 613 | |
| 614 | if (!hdev->asic_prop.supports_nvme) { |
| 615 | seq_puts(m: s, s: "NVMe Direct I/O not supported\\n" ); |
| 616 | return 0; |
| 617 | } |
| 618 | |
| 619 | seq_puts(m: s, s: "Usage: echo \"fd=N va=0xADDR off=N len=N\" > dio_ssd2hl\n" ); |
| 620 | seq_printf(m: s, fmt: "Last transfer: %zu bytes\\n" , dev_entry->dio_stats.last_len_read); |
| 621 | seq_puts(m: s, s: "Note: All parameters must be page-aligned (4KB)\\n" ); |
| 622 | |
| 623 | return 0; |
| 624 | } |
| 625 | |
| 626 | static ssize_t dio_ssd2hl_write(struct file *file, const char __user *buf, |
| 627 | size_t count, loff_t *f_pos) |
| 628 | { |
| 629 | struct seq_file *s = file->private_data; |
| 630 | struct hl_debugfs_entry *entry = s->private; |
| 631 | struct hl_dbg_device_entry *dev_entry = entry->dev_entry; |
| 632 | struct hl_device *hdev = dev_entry->hdev; |
| 633 | struct hl_ctx *ctx = hdev->kernel_ctx; |
| 634 | char kbuf[128]; |
| 635 | u64 device_va = 0, off_bytes = 0, len_bytes = 0; |
| 636 | u32 fd = 0; |
| 637 | size_t len_read = 0; |
| 638 | int rc, parsed; |
| 639 | |
| 640 | if (!hdev->asic_prop.supports_nvme) |
| 641 | return -EOPNOTSUPP; |
| 642 | |
| 643 | if (count >= sizeof(kbuf)) |
| 644 | return -EINVAL; |
| 645 | |
| 646 | if (copy_from_user(to: kbuf, from: buf, n: count)) |
| 647 | return -EFAULT; |
| 648 | |
| 649 | kbuf[count] = 0; |
| 650 | |
| 651 | /* Parse: fd=N va=0xADDR off=N len=N */ |
| 652 | parsed = sscanf(kbuf, "fd=%u va=0x%llx off=%llu len=%llu" , |
| 653 | &fd, &device_va, &off_bytes, &len_bytes); |
| 654 | if (parsed != 4) { |
| 655 | dev_err(hdev->dev, "Invalid format. Expected: fd=N va=0xADDR off=N len=N\\n" ); |
| 656 | return -EINVAL; |
| 657 | } |
| 658 | |
| 659 | /* Validate file descriptor */ |
| 660 | if (fd == 0) { |
| 661 | dev_err(hdev->dev, "Invalid file descriptor: %u\\n" , fd); |
| 662 | return -EINVAL; |
| 663 | } |
| 664 | |
| 665 | /* Validate alignment requirements */ |
| 666 | if (!IS_ALIGNED(device_va, PAGE_SIZE) || |
| 667 | !IS_ALIGNED(off_bytes, PAGE_SIZE) || |
| 668 | !IS_ALIGNED(len_bytes, PAGE_SIZE)) { |
| 669 | dev_err(hdev->dev, |
| 670 | "All parameters must be page-aligned (4KB)\\n" ); |
| 671 | return -EINVAL; |
| 672 | } |
| 673 | |
| 674 | /* Validate transfer size */ |
| 675 | if (len_bytes == 0 || len_bytes > SZ_1G) { |
| 676 | dev_err(hdev->dev, "Invalid length: %llu (max 1GB)\\n" , |
| 677 | len_bytes); |
| 678 | return -EINVAL; |
| 679 | } |
| 680 | |
| 681 | dev_dbg(hdev->dev, "DIO SSD2HL: fd=%u va=0x%llx off=%llu len=%llu\\n" , |
| 682 | fd, device_va, off_bytes, len_bytes); |
| 683 | |
| 684 | rc = hl_dio_ssd2hl(hdev, ctx, fd, device_va, off_bytes, len_bytes, len_read: &len_read); |
| 685 | if (rc < 0) { |
| 686 | dev_entry->dio_stats.failed_ops++; |
| 687 | dev_err(hdev->dev, "SSD2HL operation failed: %d\\n" , rc); |
| 688 | return rc; |
| 689 | } |
| 690 | |
| 691 | /* Update statistics */ |
| 692 | dev_entry->dio_stats.total_ops++; |
| 693 | dev_entry->dio_stats.successful_ops++; |
| 694 | dev_entry->dio_stats.bytes_transferred += len_read; |
| 695 | dev_entry->dio_stats.last_len_read = len_read; |
| 696 | |
| 697 | dev_dbg(hdev->dev, "DIO SSD2HL completed: %zu bytes transferred\\n" , len_read); |
| 698 | |
| 699 | return count; |
| 700 | } |
| 701 | |
| 702 | static int dio_hl2ssd_show(struct seq_file *s, void *data) |
| 703 | { |
| 704 | seq_puts(m: s, s: "HL2SSD (device-to-SSD) transfers not implemented\\n" ); |
| 705 | return 0; |
| 706 | } |
| 707 | |
| 708 | static ssize_t dio_hl2ssd_write(struct file *file, const char __user *buf, |
| 709 | size_t count, loff_t *f_pos) |
| 710 | { |
| 711 | struct seq_file *s = file->private_data; |
| 712 | struct hl_debugfs_entry *entry = s->private; |
| 713 | struct hl_dbg_device_entry *dev_entry = entry->dev_entry; |
| 714 | struct hl_device *hdev = dev_entry->hdev; |
| 715 | |
| 716 | if (!hdev->asic_prop.supports_nvme) |
| 717 | return -EOPNOTSUPP; |
| 718 | |
| 719 | dev_dbg(hdev->dev, "HL2SSD operation not implemented\\n" ); |
| 720 | return -EOPNOTSUPP; |
| 721 | } |
| 722 | |
| 723 | static int dio_stats_show(struct seq_file *s, void *data) |
| 724 | { |
| 725 | struct hl_debugfs_entry *entry = s->private; |
| 726 | struct hl_dbg_device_entry *dev_entry = entry->dev_entry; |
| 727 | struct hl_device *hdev = dev_entry->hdev; |
| 728 | struct hl_dio_stats *stats = &dev_entry->dio_stats; |
| 729 | u64 avg_bytes_per_op = 0, success_rate = 0; |
| 730 | |
| 731 | if (!hdev->asic_prop.supports_nvme) { |
| 732 | seq_puts(m: s, s: "NVMe Direct I/O not supported\\n" ); |
| 733 | return 0; |
| 734 | } |
| 735 | |
| 736 | if (stats->successful_ops > 0) |
| 737 | avg_bytes_per_op = stats->bytes_transferred / stats->successful_ops; |
| 738 | |
| 739 | if (stats->total_ops > 0) |
| 740 | success_rate = (stats->successful_ops * 100) / stats->total_ops; |
| 741 | |
| 742 | seq_puts(m: s, s: "=== Habanalabs Direct I/O Statistics ===\\n" ); |
| 743 | seq_printf(m: s, fmt: "Total operations: %llu\\n" , stats->total_ops); |
| 744 | seq_printf(m: s, fmt: "Successful ops: %llu\\n" , stats->successful_ops); |
| 745 | seq_printf(m: s, fmt: "Failed ops: %llu\\n" , stats->failed_ops); |
| 746 | seq_printf(m: s, fmt: "Success rate: %llu%%\\n" , success_rate); |
| 747 | seq_printf(m: s, fmt: "Total bytes: %llu\\n" , stats->bytes_transferred); |
| 748 | seq_printf(m: s, fmt: "Avg bytes per op: %llu\\n" , avg_bytes_per_op); |
| 749 | seq_printf(m: s, fmt: "Last transfer: %zu bytes\\n" , stats->last_len_read); |
| 750 | |
| 751 | return 0; |
| 752 | } |
| 753 | |
| 754 | static int dio_reset_show(struct seq_file *s, void *data) |
| 755 | { |
| 756 | seq_puts(m: s, s: "Write '1' to reset DIO statistics\\n" ); |
| 757 | return 0; |
| 758 | } |
| 759 | |
| 760 | static ssize_t dio_reset_write(struct file *file, const char __user *buf, |
| 761 | size_t count, loff_t *f_pos) |
| 762 | { |
| 763 | struct seq_file *s = file->private_data; |
| 764 | struct hl_debugfs_entry *entry = s->private; |
| 765 | struct hl_dbg_device_entry *dev_entry = entry->dev_entry; |
| 766 | struct hl_device *hdev = dev_entry->hdev; |
| 767 | char kbuf[8]; |
| 768 | unsigned long val; |
| 769 | int rc; |
| 770 | |
| 771 | if (!hdev->asic_prop.supports_nvme) |
| 772 | return -EOPNOTSUPP; |
| 773 | |
| 774 | if (count >= sizeof(kbuf)) |
| 775 | return -EINVAL; |
| 776 | |
| 777 | if (copy_from_user(to: kbuf, from: buf, n: count)) |
| 778 | return -EFAULT; |
| 779 | |
| 780 | kbuf[count] = 0; |
| 781 | |
| 782 | rc = kstrtoul(s: kbuf, base: 0, res: &val); |
| 783 | if (rc) |
| 784 | return rc; |
| 785 | |
| 786 | if (val == 1) { |
| 787 | memset(&dev_entry->dio_stats, 0, sizeof(dev_entry->dio_stats)); |
| 788 | dev_dbg(hdev->dev, "DIO statistics reset\\n" ); |
| 789 | } else { |
| 790 | dev_err(hdev->dev, "Write '1' to reset statistics\\n" ); |
| 791 | return -EINVAL; |
| 792 | } |
| 793 | |
| 794 | return count; |
| 795 | } |
| 796 | #endif |
| 797 | |
| 798 | static ssize_t hl_memory_scrub(struct file *f, const char __user *buf, |
| 799 | size_t count, loff_t *ppos) |
| 800 | { |
| 801 | struct hl_dbg_device_entry *entry = file_inode(f)->i_private; |
| 802 | struct hl_device *hdev = entry->hdev; |
| 803 | u64 val = hdev->memory_scrub_val; |
| 804 | int rc; |
| 805 | |
| 806 | if (!hl_device_operational(hdev, NULL)) { |
| 807 | dev_warn_ratelimited(hdev->dev, "Can't scrub memory, device is not operational\n" ); |
| 808 | return -EIO; |
| 809 | } |
| 810 | |
| 811 | mutex_lock(&hdev->fpriv_list_lock); |
| 812 | if (hdev->is_compute_ctx_active) { |
| 813 | mutex_unlock(lock: &hdev->fpriv_list_lock); |
| 814 | dev_err(hdev->dev, "can't scrub dram, context exist\n" ); |
| 815 | return -EBUSY; |
| 816 | } |
| 817 | hdev->is_in_dram_scrub = true; |
| 818 | mutex_unlock(lock: &hdev->fpriv_list_lock); |
| 819 | |
| 820 | rc = hdev->asic_funcs->scrub_device_dram(hdev, val); |
| 821 | |
| 822 | mutex_lock(&hdev->fpriv_list_lock); |
| 823 | hdev->is_in_dram_scrub = false; |
| 824 | mutex_unlock(lock: &hdev->fpriv_list_lock); |
| 825 | |
| 826 | if (rc) |
| 827 | return rc; |
| 828 | return count; |
| 829 | } |
| 830 | |
| 831 | static bool hl_is_device_va(struct hl_device *hdev, u64 addr) |
| 832 | { |
| 833 | struct asic_fixed_properties *prop = &hdev->asic_prop; |
| 834 | |
| 835 | if (prop->dram_supports_virtual_memory && |
| 836 | (addr >= prop->dmmu.start_addr && addr < prop->dmmu.end_addr)) |
| 837 | return true; |
| 838 | |
| 839 | if (addr >= prop->pmmu.start_addr && |
| 840 | addr < prop->pmmu.end_addr) |
| 841 | return true; |
| 842 | |
| 843 | if (addr >= prop->pmmu_huge.start_addr && |
| 844 | addr < prop->pmmu_huge.end_addr) |
| 845 | return true; |
| 846 | |
| 847 | return false; |
| 848 | } |
| 849 | |
| 850 | static bool hl_is_device_internal_memory_va(struct hl_device *hdev, u64 addr, |
| 851 | u32 size) |
| 852 | { |
| 853 | struct asic_fixed_properties *prop = &hdev->asic_prop; |
| 854 | u64 dram_start_addr, dram_end_addr; |
| 855 | |
| 856 | if (prop->dram_supports_virtual_memory) { |
| 857 | dram_start_addr = prop->dmmu.start_addr; |
| 858 | dram_end_addr = prop->dmmu.end_addr; |
| 859 | } else { |
| 860 | dram_start_addr = prop->dram_base_address; |
| 861 | dram_end_addr = prop->dram_end_address; |
| 862 | } |
| 863 | |
| 864 | if (hl_mem_area_inside_range(address: addr, size, range_start_address: dram_start_addr, |
| 865 | range_end_address: dram_end_addr)) |
| 866 | return true; |
| 867 | |
| 868 | if (hl_mem_area_inside_range(address: addr, size, range_start_address: prop->sram_base_address, |
| 869 | range_end_address: prop->sram_end_address)) |
| 870 | return true; |
| 871 | |
| 872 | return false; |
| 873 | } |
| 874 | |
| 875 | static int device_va_to_pa(struct hl_device *hdev, u64 virt_addr, u32 size, |
| 876 | u64 *phys_addr) |
| 877 | { |
| 878 | struct hl_vm_phys_pg_pack *phys_pg_pack; |
| 879 | struct hl_ctx *ctx; |
| 880 | struct hl_vm_hash_node *hnode; |
| 881 | u64 end_address, range_size; |
| 882 | struct hl_userptr *userptr; |
| 883 | enum vm_type *vm_type; |
| 884 | bool valid = false; |
| 885 | int i, rc = 0; |
| 886 | |
| 887 | ctx = hl_get_compute_ctx(hdev); |
| 888 | |
| 889 | if (!ctx) { |
| 890 | dev_err(hdev->dev, "no ctx available\n" ); |
| 891 | return -EINVAL; |
| 892 | } |
| 893 | |
| 894 | /* Verify address is mapped */ |
| 895 | mutex_lock(&ctx->mem_hash_lock); |
| 896 | hash_for_each(ctx->mem_hash, i, hnode, node) { |
| 897 | vm_type = hnode->ptr; |
| 898 | |
| 899 | if (*vm_type == VM_TYPE_USERPTR) { |
| 900 | userptr = hnode->ptr; |
| 901 | range_size = userptr->size; |
| 902 | } else { |
| 903 | phys_pg_pack = hnode->ptr; |
| 904 | range_size = phys_pg_pack->total_size; |
| 905 | } |
| 906 | |
| 907 | end_address = virt_addr + size; |
| 908 | if ((virt_addr >= hnode->vaddr) && |
| 909 | (end_address <= hnode->vaddr + range_size)) { |
| 910 | valid = true; |
| 911 | break; |
| 912 | } |
| 913 | } |
| 914 | mutex_unlock(lock: &ctx->mem_hash_lock); |
| 915 | |
| 916 | if (!valid) { |
| 917 | dev_err(hdev->dev, |
| 918 | "virt addr 0x%llx is not mapped\n" , |
| 919 | virt_addr); |
| 920 | rc = -EINVAL; |
| 921 | goto put_ctx; |
| 922 | } |
| 923 | |
| 924 | rc = hl_mmu_va_to_pa(ctx, virt_addr, phys_addr); |
| 925 | if (rc) { |
| 926 | dev_err(hdev->dev, |
| 927 | "virt addr 0x%llx is not mapped to phys addr\n" , |
| 928 | virt_addr); |
| 929 | rc = -EINVAL; |
| 930 | } |
| 931 | |
| 932 | put_ctx: |
| 933 | hl_ctx_put(ctx); |
| 934 | |
| 935 | return rc; |
| 936 | } |
| 937 | |
| 938 | static int hl_access_dev_mem_by_region(struct hl_device *hdev, u64 addr, |
| 939 | u64 *val, enum debugfs_access_type acc_type, bool *found) |
| 940 | { |
| 941 | size_t acc_size = (acc_type == DEBUGFS_READ64 || acc_type == DEBUGFS_WRITE64) ? |
| 942 | sizeof(u64) : sizeof(u32); |
| 943 | struct pci_mem_region *mem_reg; |
| 944 | int i; |
| 945 | |
| 946 | for (i = 0; i < PCI_REGION_NUMBER; i++) { |
| 947 | mem_reg = &hdev->pci_mem_region[i]; |
| 948 | if (!mem_reg->used) |
| 949 | continue; |
| 950 | if (addr >= mem_reg->region_base && |
| 951 | addr <= mem_reg->region_base + mem_reg->region_size - acc_size) { |
| 952 | *found = true; |
| 953 | return hdev->asic_funcs->access_dev_mem(hdev, i, addr, val, acc_type); |
| 954 | } |
| 955 | } |
| 956 | return 0; |
| 957 | } |
| 958 | |
| 959 | static void hl_access_host_mem(struct hl_device *hdev, u64 addr, u64 *val, |
| 960 | enum debugfs_access_type acc_type) |
| 961 | { |
| 962 | struct asic_fixed_properties *prop = &hdev->asic_prop; |
| 963 | u64 offset = prop->device_dma_offset_for_host_access; |
| 964 | |
| 965 | switch (acc_type) { |
| 966 | case DEBUGFS_READ32: |
| 967 | *val = *(u32 *) phys_to_virt(address: addr - offset); |
| 968 | break; |
| 969 | case DEBUGFS_WRITE32: |
| 970 | *(u32 *) phys_to_virt(address: addr - offset) = *val; |
| 971 | break; |
| 972 | case DEBUGFS_READ64: |
| 973 | *val = *(u64 *) phys_to_virt(address: addr - offset); |
| 974 | break; |
| 975 | case DEBUGFS_WRITE64: |
| 976 | *(u64 *) phys_to_virt(address: addr - offset) = *val; |
| 977 | break; |
| 978 | default: |
| 979 | dev_err(hdev->dev, "hostmem access-type %d id not supported\n" , acc_type); |
| 980 | break; |
| 981 | } |
| 982 | } |
| 983 | |
| 984 | static void dump_cfg_access_entry(struct hl_device *hdev, |
| 985 | struct hl_debugfs_cfg_access_entry *entry) |
| 986 | { |
| 987 | char *access_type = "" ; |
| 988 | struct tm tm; |
| 989 | |
| 990 | switch (entry->debugfs_type) { |
| 991 | case DEBUGFS_READ32: |
| 992 | access_type = "READ32 from" ; |
| 993 | break; |
| 994 | case DEBUGFS_WRITE32: |
| 995 | access_type = "WRITE32 to" ; |
| 996 | break; |
| 997 | case DEBUGFS_READ64: |
| 998 | access_type = "READ64 from" ; |
| 999 | break; |
| 1000 | case DEBUGFS_WRITE64: |
| 1001 | access_type = "WRITE64 to" ; |
| 1002 | break; |
| 1003 | default: |
| 1004 | dev_err(hdev->dev, "Invalid DEBUGFS access type (%u)\n" , entry->debugfs_type); |
| 1005 | return; |
| 1006 | } |
| 1007 | |
| 1008 | time64_to_tm(totalsecs: entry->seconds_since_epoch, offset: 0, result: &tm); |
| 1009 | dev_info(hdev->dev, |
| 1010 | "%ld-%02d-%02d %02d:%02d:%02d (UTC): %s %#llx\n" , tm.tm_year + 1900, tm.tm_mon + 1, |
| 1011 | tm.tm_mday, tm.tm_hour, tm.tm_min, tm.tm_sec, access_type, entry->addr); |
| 1012 | } |
| 1013 | |
| 1014 | void hl_debugfs_cfg_access_history_dump(struct hl_device *hdev) |
| 1015 | { |
| 1016 | struct hl_debugfs_cfg_access *dbgfs = &hdev->debugfs_cfg_accesses; |
| 1017 | u32 i, head, count = 0; |
| 1018 | time64_t entry_time, now; |
| 1019 | unsigned long flags; |
| 1020 | |
| 1021 | now = ktime_get_real_seconds(); |
| 1022 | |
| 1023 | spin_lock_irqsave(&dbgfs->lock, flags); |
| 1024 | head = dbgfs->head; |
| 1025 | if (head == 0) |
| 1026 | i = HL_DBGFS_CFG_ACCESS_HIST_LEN - 1; |
| 1027 | else |
| 1028 | i = head - 1; |
| 1029 | |
| 1030 | /* Walk back until timeout or invalid entry */ |
| 1031 | while (dbgfs->cfg_access_list[i].valid) { |
| 1032 | entry_time = dbgfs->cfg_access_list[i].seconds_since_epoch; |
| 1033 | /* Stop when entry is older than timeout */ |
| 1034 | if (now - entry_time > HL_DBGFS_CFG_ACCESS_HIST_TIMEOUT_SEC) |
| 1035 | break; |
| 1036 | |
| 1037 | /* print single entry under lock */ |
| 1038 | { |
| 1039 | struct hl_debugfs_cfg_access_entry entry = dbgfs->cfg_access_list[i]; |
| 1040 | /* |
| 1041 | * We copy the entry out under lock and then print after |
| 1042 | * releasing the lock to minimize time under lock. |
| 1043 | */ |
| 1044 | spin_unlock_irqrestore(lock: &dbgfs->lock, flags); |
| 1045 | dump_cfg_access_entry(hdev, entry: &entry); |
| 1046 | spin_lock_irqsave(&dbgfs->lock, flags); |
| 1047 | } |
| 1048 | |
| 1049 | /* mark consumed */ |
| 1050 | dbgfs->cfg_access_list[i].valid = false; |
| 1051 | |
| 1052 | if (i == 0) |
| 1053 | i = HL_DBGFS_CFG_ACCESS_HIST_LEN - 1; |
| 1054 | else |
| 1055 | i--; |
| 1056 | count++; |
| 1057 | if (count >= HL_DBGFS_CFG_ACCESS_HIST_LEN) |
| 1058 | break; |
| 1059 | } |
| 1060 | spin_unlock_irqrestore(lock: &dbgfs->lock, flags); |
| 1061 | } |
| 1062 | |
| 1063 | static void check_if_cfg_access_and_log(struct hl_device *hdev, u64 addr, size_t access_size, |
| 1064 | enum debugfs_access_type access_type) |
| 1065 | { |
| 1066 | struct hl_debugfs_cfg_access *dbgfs_cfg_accesses = &hdev->debugfs_cfg_accesses; |
| 1067 | struct pci_mem_region *mem_reg = &hdev->pci_mem_region[PCI_REGION_CFG]; |
| 1068 | struct hl_debugfs_cfg_access_entry *new_entry; |
| 1069 | unsigned long flags; |
| 1070 | |
| 1071 | /* Check if address is in config memory */ |
| 1072 | if (addr >= mem_reg->region_base && |
| 1073 | mem_reg->region_size >= access_size && |
| 1074 | addr <= mem_reg->region_base + mem_reg->region_size - access_size) { |
| 1075 | |
| 1076 | spin_lock_irqsave(&dbgfs_cfg_accesses->lock, flags); |
| 1077 | |
| 1078 | new_entry = &dbgfs_cfg_accesses->cfg_access_list[dbgfs_cfg_accesses->head]; |
| 1079 | new_entry->seconds_since_epoch = ktime_get_real_seconds(); |
| 1080 | new_entry->addr = addr; |
| 1081 | new_entry->debugfs_type = access_type; |
| 1082 | new_entry->valid = true; |
| 1083 | dbgfs_cfg_accesses->head = (dbgfs_cfg_accesses->head + 1) |
| 1084 | % HL_DBGFS_CFG_ACCESS_HIST_LEN; |
| 1085 | |
| 1086 | spin_unlock_irqrestore(lock: &dbgfs_cfg_accesses->lock, flags); |
| 1087 | |
| 1088 | } |
| 1089 | } |
| 1090 | |
| 1091 | static int hl_access_mem(struct hl_device *hdev, u64 addr, u64 *val, |
| 1092 | enum debugfs_access_type acc_type) |
| 1093 | { |
| 1094 | size_t acc_size = (acc_type == DEBUGFS_READ64 || acc_type == DEBUGFS_WRITE64) ? |
| 1095 | sizeof(u64) : sizeof(u32); |
| 1096 | u64 host_start = hdev->asic_prop.host_base_address; |
| 1097 | u64 host_end = hdev->asic_prop.host_end_address; |
| 1098 | bool user_address, found = false; |
| 1099 | int rc; |
| 1100 | |
| 1101 | user_address = hl_is_device_va(hdev, addr); |
| 1102 | if (user_address) { |
| 1103 | rc = device_va_to_pa(hdev, virt_addr: addr, size: acc_size, phys_addr: &addr); |
| 1104 | if (rc) |
| 1105 | return rc; |
| 1106 | } |
| 1107 | |
| 1108 | check_if_cfg_access_and_log(hdev, addr, access_size: acc_size, access_type: acc_type); |
| 1109 | rc = hl_access_dev_mem_by_region(hdev, addr, val, acc_type, found: &found); |
| 1110 | if (rc) { |
| 1111 | dev_err(hdev->dev, |
| 1112 | "Failed reading addr %#llx from dev mem (%d)\n" , |
| 1113 | addr, rc); |
| 1114 | return rc; |
| 1115 | } |
| 1116 | |
| 1117 | if (found) |
| 1118 | return 0; |
| 1119 | |
| 1120 | if (!user_address || device_iommu_mapped(dev: &hdev->pdev->dev)) { |
| 1121 | rc = -EINVAL; |
| 1122 | goto err; |
| 1123 | } |
| 1124 | |
| 1125 | if (addr >= host_start && addr <= host_end - acc_size) { |
| 1126 | hl_access_host_mem(hdev, addr, val, acc_type); |
| 1127 | } else { |
| 1128 | rc = -EINVAL; |
| 1129 | goto err; |
| 1130 | } |
| 1131 | |
| 1132 | return 0; |
| 1133 | err: |
| 1134 | dev_err(hdev->dev, "invalid addr %#llx\n" , addr); |
| 1135 | return rc; |
| 1136 | } |
| 1137 | |
| 1138 | static ssize_t hl_data_read32(struct file *f, char __user *buf, |
| 1139 | size_t count, loff_t *ppos) |
| 1140 | { |
| 1141 | struct hl_dbg_device_entry *entry = file_inode(f)->i_private; |
| 1142 | struct hl_device *hdev = entry->hdev; |
| 1143 | u64 value64, addr = entry->addr; |
| 1144 | char tmp_buf[32]; |
| 1145 | ssize_t rc; |
| 1146 | u32 val; |
| 1147 | |
| 1148 | if (hdev->reset_info.in_reset) { |
| 1149 | dev_warn_ratelimited(hdev->dev, "Can't read during reset\n" ); |
| 1150 | return 0; |
| 1151 | } |
| 1152 | |
| 1153 | if (*ppos) |
| 1154 | return 0; |
| 1155 | |
| 1156 | rc = hl_access_mem(hdev, addr, val: &value64, acc_type: DEBUGFS_READ32); |
| 1157 | if (rc) |
| 1158 | return rc; |
| 1159 | |
| 1160 | val = value64; /* downcast back to 32 */ |
| 1161 | |
| 1162 | sprintf(buf: tmp_buf, fmt: "0x%08x\n" , val); |
| 1163 | return simple_read_from_buffer(to: buf, count, ppos, from: tmp_buf, |
| 1164 | strlen(tmp_buf)); |
| 1165 | } |
| 1166 | |
| 1167 | static ssize_t hl_data_write32(struct file *f, const char __user *buf, |
| 1168 | size_t count, loff_t *ppos) |
| 1169 | { |
| 1170 | struct hl_dbg_device_entry *entry = file_inode(f)->i_private; |
| 1171 | struct hl_device *hdev = entry->hdev; |
| 1172 | u64 value64, addr = entry->addr; |
| 1173 | u32 value; |
| 1174 | ssize_t rc; |
| 1175 | |
| 1176 | if (hdev->reset_info.in_reset) { |
| 1177 | dev_warn_ratelimited(hdev->dev, "Can't write during reset\n" ); |
| 1178 | return 0; |
| 1179 | } |
| 1180 | |
| 1181 | rc = kstrtouint_from_user(s: buf, count, base: 16, res: &value); |
| 1182 | if (rc) |
| 1183 | return rc; |
| 1184 | |
| 1185 | value64 = value; |
| 1186 | rc = hl_access_mem(hdev, addr, val: &value64, acc_type: DEBUGFS_WRITE32); |
| 1187 | if (rc) |
| 1188 | return rc; |
| 1189 | |
| 1190 | return count; |
| 1191 | } |
| 1192 | |
| 1193 | static ssize_t hl_data_read64(struct file *f, char __user *buf, |
| 1194 | size_t count, loff_t *ppos) |
| 1195 | { |
| 1196 | struct hl_dbg_device_entry *entry = file_inode(f)->i_private; |
| 1197 | struct hl_device *hdev = entry->hdev; |
| 1198 | u64 addr = entry->addr; |
| 1199 | char tmp_buf[32]; |
| 1200 | ssize_t rc; |
| 1201 | u64 val; |
| 1202 | |
| 1203 | if (hdev->reset_info.in_reset) { |
| 1204 | dev_warn_ratelimited(hdev->dev, "Can't read during reset\n" ); |
| 1205 | return 0; |
| 1206 | } |
| 1207 | |
| 1208 | if (*ppos) |
| 1209 | return 0; |
| 1210 | |
| 1211 | rc = hl_access_mem(hdev, addr, val: &val, acc_type: DEBUGFS_READ64); |
| 1212 | if (rc) |
| 1213 | return rc; |
| 1214 | |
| 1215 | sprintf(buf: tmp_buf, fmt: "0x%016llx\n" , val); |
| 1216 | return simple_read_from_buffer(to: buf, count, ppos, from: tmp_buf, |
| 1217 | strlen(tmp_buf)); |
| 1218 | } |
| 1219 | |
| 1220 | static ssize_t hl_data_write64(struct file *f, const char __user *buf, |
| 1221 | size_t count, loff_t *ppos) |
| 1222 | { |
| 1223 | struct hl_dbg_device_entry *entry = file_inode(f)->i_private; |
| 1224 | struct hl_device *hdev = entry->hdev; |
| 1225 | u64 addr = entry->addr; |
| 1226 | u64 value; |
| 1227 | ssize_t rc; |
| 1228 | |
| 1229 | if (hdev->reset_info.in_reset) { |
| 1230 | dev_warn_ratelimited(hdev->dev, "Can't write during reset\n" ); |
| 1231 | return 0; |
| 1232 | } |
| 1233 | |
| 1234 | rc = kstrtoull_from_user(s: buf, count, base: 16, res: &value); |
| 1235 | if (rc) |
| 1236 | return rc; |
| 1237 | |
| 1238 | rc = hl_access_mem(hdev, addr, val: &value, acc_type: DEBUGFS_WRITE64); |
| 1239 | if (rc) |
| 1240 | return rc; |
| 1241 | |
| 1242 | return count; |
| 1243 | } |
| 1244 | |
| 1245 | static ssize_t hl_dma_size_write(struct file *f, const char __user *buf, |
| 1246 | size_t count, loff_t *ppos) |
| 1247 | { |
| 1248 | struct hl_dbg_device_entry *entry = file_inode(f)->i_private; |
| 1249 | struct hl_device *hdev = entry->hdev; |
| 1250 | u64 addr = entry->addr; |
| 1251 | ssize_t rc; |
| 1252 | u32 size; |
| 1253 | |
| 1254 | if (hdev->reset_info.in_reset) { |
| 1255 | dev_warn_ratelimited(hdev->dev, "Can't DMA during reset\n" ); |
| 1256 | return 0; |
| 1257 | } |
| 1258 | rc = kstrtouint_from_user(s: buf, count, base: 16, res: &size); |
| 1259 | if (rc) |
| 1260 | return rc; |
| 1261 | |
| 1262 | if (!size) { |
| 1263 | dev_err(hdev->dev, "DMA read failed. size can't be 0\n" ); |
| 1264 | return -EINVAL; |
| 1265 | } |
| 1266 | |
| 1267 | if (size > SZ_128M) { |
| 1268 | dev_err(hdev->dev, |
| 1269 | "DMA read failed. size can't be larger than 128MB\n" ); |
| 1270 | return -EINVAL; |
| 1271 | } |
| 1272 | |
| 1273 | if (!hl_is_device_internal_memory_va(hdev, addr, size)) { |
| 1274 | dev_err(hdev->dev, |
| 1275 | "DMA read failed. Invalid 0x%010llx + 0x%08x\n" , |
| 1276 | addr, size); |
| 1277 | return -EINVAL; |
| 1278 | } |
| 1279 | |
| 1280 | /* Free the previous allocation, if there was any */ |
| 1281 | entry->data_dma_blob_desc.size = 0; |
| 1282 | vfree(addr: entry->data_dma_blob_desc.data); |
| 1283 | |
| 1284 | entry->data_dma_blob_desc.data = vmalloc(size); |
| 1285 | if (!entry->data_dma_blob_desc.data) |
| 1286 | return -ENOMEM; |
| 1287 | |
| 1288 | rc = hdev->asic_funcs->debugfs_read_dma(hdev, addr, size, |
| 1289 | entry->data_dma_blob_desc.data); |
| 1290 | if (rc) { |
| 1291 | dev_err(hdev->dev, "Failed to DMA from 0x%010llx\n" , addr); |
| 1292 | vfree(addr: entry->data_dma_blob_desc.data); |
| 1293 | entry->data_dma_blob_desc.data = NULL; |
| 1294 | return -EIO; |
| 1295 | } |
| 1296 | |
| 1297 | entry->data_dma_blob_desc.size = size; |
| 1298 | |
| 1299 | return count; |
| 1300 | } |
| 1301 | |
| 1302 | static ssize_t hl_monitor_dump_trigger(struct file *f, const char __user *buf, |
| 1303 | size_t count, loff_t *ppos) |
| 1304 | { |
| 1305 | struct hl_dbg_device_entry *entry = file_inode(f)->i_private; |
| 1306 | struct hl_device *hdev = entry->hdev; |
| 1307 | u32 size, trig; |
| 1308 | ssize_t rc; |
| 1309 | |
| 1310 | if (hdev->reset_info.in_reset) { |
| 1311 | dev_warn_ratelimited(hdev->dev, "Can't dump monitors during reset\n" ); |
| 1312 | return 0; |
| 1313 | } |
| 1314 | rc = kstrtouint_from_user(s: buf, count, base: 10, res: &trig); |
| 1315 | if (rc) |
| 1316 | return rc; |
| 1317 | |
| 1318 | if (trig != 1) { |
| 1319 | dev_err(hdev->dev, "Must write 1 to trigger monitor dump\n" ); |
| 1320 | return -EINVAL; |
| 1321 | } |
| 1322 | |
| 1323 | size = sizeof(struct cpucp_monitor_dump); |
| 1324 | |
| 1325 | /* Free the previous allocation, if there was any */ |
| 1326 | entry->mon_dump_blob_desc.size = 0; |
| 1327 | vfree(addr: entry->mon_dump_blob_desc.data); |
| 1328 | |
| 1329 | entry->mon_dump_blob_desc.data = vmalloc(size); |
| 1330 | if (!entry->mon_dump_blob_desc.data) |
| 1331 | return -ENOMEM; |
| 1332 | |
| 1333 | rc = hdev->asic_funcs->get_monitor_dump(hdev, entry->mon_dump_blob_desc.data); |
| 1334 | if (rc) { |
| 1335 | dev_err(hdev->dev, "Failed to dump monitors\n" ); |
| 1336 | vfree(addr: entry->mon_dump_blob_desc.data); |
| 1337 | entry->mon_dump_blob_desc.data = NULL; |
| 1338 | return -EIO; |
| 1339 | } |
| 1340 | |
| 1341 | entry->mon_dump_blob_desc.size = size; |
| 1342 | |
| 1343 | return count; |
| 1344 | } |
| 1345 | |
| 1346 | static ssize_t hl_get_power_state(struct file *f, char __user *buf, |
| 1347 | size_t count, loff_t *ppos) |
| 1348 | { |
| 1349 | struct hl_dbg_device_entry *entry = file_inode(f)->i_private; |
| 1350 | struct hl_device *hdev = entry->hdev; |
| 1351 | char tmp_buf[200]; |
| 1352 | int i; |
| 1353 | |
| 1354 | if (*ppos) |
| 1355 | return 0; |
| 1356 | |
| 1357 | if (hdev->pdev->current_state == PCI_D0) |
| 1358 | i = 1; |
| 1359 | else if (hdev->pdev->current_state == PCI_D3hot) |
| 1360 | i = 2; |
| 1361 | else |
| 1362 | i = 3; |
| 1363 | |
| 1364 | sprintf(buf: tmp_buf, |
| 1365 | fmt: "current power state: %d\n1 - D0\n2 - D3hot\n3 - Unknown\n" , i); |
| 1366 | return simple_read_from_buffer(to: buf, count, ppos, from: tmp_buf, |
| 1367 | strlen(tmp_buf)); |
| 1368 | } |
| 1369 | |
| 1370 | static ssize_t hl_set_power_state(struct file *f, const char __user *buf, |
| 1371 | size_t count, loff_t *ppos) |
| 1372 | { |
| 1373 | struct hl_dbg_device_entry *entry = file_inode(f)->i_private; |
| 1374 | struct hl_device *hdev = entry->hdev; |
| 1375 | u32 value; |
| 1376 | ssize_t rc; |
| 1377 | |
| 1378 | rc = kstrtouint_from_user(s: buf, count, base: 10, res: &value); |
| 1379 | if (rc) |
| 1380 | return rc; |
| 1381 | |
| 1382 | if (value == 1) { |
| 1383 | pci_set_power_state(dev: hdev->pdev, PCI_D0); |
| 1384 | pci_restore_state(dev: hdev->pdev); |
| 1385 | rc = pci_enable_device(dev: hdev->pdev); |
| 1386 | if (rc < 0) |
| 1387 | return rc; |
| 1388 | } else if (value == 2) { |
| 1389 | pci_save_state(dev: hdev->pdev); |
| 1390 | pci_disable_device(dev: hdev->pdev); |
| 1391 | pci_set_power_state(dev: hdev->pdev, PCI_D3hot); |
| 1392 | } else { |
| 1393 | dev_dbg(hdev->dev, "invalid power state value %u\n" , value); |
| 1394 | return -EINVAL; |
| 1395 | } |
| 1396 | |
| 1397 | return count; |
| 1398 | } |
| 1399 | |
| 1400 | static ssize_t hl_i2c_data_read(struct file *f, char __user *buf, |
| 1401 | size_t count, loff_t *ppos) |
| 1402 | { |
| 1403 | struct hl_dbg_device_entry *entry = file_inode(f)->i_private; |
| 1404 | struct hl_device *hdev = entry->hdev; |
| 1405 | char tmp_buf[32]; |
| 1406 | u64 val; |
| 1407 | ssize_t rc; |
| 1408 | |
| 1409 | if (*ppos) |
| 1410 | return 0; |
| 1411 | |
| 1412 | rc = hl_debugfs_i2c_read(hdev, i2c_bus: entry->i2c_bus, i2c_addr: entry->i2c_addr, |
| 1413 | i2c_reg: entry->i2c_reg, i2c_len: entry->i2c_len, val: &val); |
| 1414 | if (rc) { |
| 1415 | dev_err(hdev->dev, |
| 1416 | "Failed to read from I2C bus %d, addr %d, reg %d, len %d\n" , |
| 1417 | entry->i2c_bus, entry->i2c_addr, entry->i2c_reg, entry->i2c_len); |
| 1418 | return rc; |
| 1419 | } |
| 1420 | |
| 1421 | sprintf(buf: tmp_buf, fmt: "%#02llx\n" , val); |
| 1422 | rc = simple_read_from_buffer(to: buf, count, ppos, from: tmp_buf, |
| 1423 | strlen(tmp_buf)); |
| 1424 | |
| 1425 | return rc; |
| 1426 | } |
| 1427 | |
| 1428 | static ssize_t hl_i2c_data_write(struct file *f, const char __user *buf, |
| 1429 | size_t count, loff_t *ppos) |
| 1430 | { |
| 1431 | struct hl_dbg_device_entry *entry = file_inode(f)->i_private; |
| 1432 | struct hl_device *hdev = entry->hdev; |
| 1433 | u64 value; |
| 1434 | ssize_t rc; |
| 1435 | |
| 1436 | rc = kstrtou64_from_user(s: buf, count, base: 16, res: &value); |
| 1437 | if (rc) |
| 1438 | return rc; |
| 1439 | |
| 1440 | rc = hl_debugfs_i2c_write(hdev, i2c_bus: entry->i2c_bus, i2c_addr: entry->i2c_addr, |
| 1441 | i2c_reg: entry->i2c_reg, i2c_len: entry->i2c_len, val: value); |
| 1442 | if (rc) { |
| 1443 | dev_err(hdev->dev, |
| 1444 | "Failed to write %#02llx to I2C bus %d, addr %d, reg %d, len %d\n" , |
| 1445 | value, entry->i2c_bus, entry->i2c_addr, entry->i2c_reg, entry->i2c_len); |
| 1446 | return rc; |
| 1447 | } |
| 1448 | |
| 1449 | return count; |
| 1450 | } |
| 1451 | |
| 1452 | static ssize_t hl_led0_write(struct file *f, const char __user *buf, |
| 1453 | size_t count, loff_t *ppos) |
| 1454 | { |
| 1455 | struct hl_dbg_device_entry *entry = file_inode(f)->i_private; |
| 1456 | struct hl_device *hdev = entry->hdev; |
| 1457 | u32 value; |
| 1458 | ssize_t rc; |
| 1459 | |
| 1460 | rc = kstrtouint_from_user(s: buf, count, base: 10, res: &value); |
| 1461 | if (rc) |
| 1462 | return rc; |
| 1463 | |
| 1464 | value = value ? 1 : 0; |
| 1465 | |
| 1466 | hl_debugfs_led_set(hdev, led: 0, state: value); |
| 1467 | |
| 1468 | return count; |
| 1469 | } |
| 1470 | |
| 1471 | static ssize_t hl_led1_write(struct file *f, const char __user *buf, |
| 1472 | size_t count, loff_t *ppos) |
| 1473 | { |
| 1474 | struct hl_dbg_device_entry *entry = file_inode(f)->i_private; |
| 1475 | struct hl_device *hdev = entry->hdev; |
| 1476 | u32 value; |
| 1477 | ssize_t rc; |
| 1478 | |
| 1479 | rc = kstrtouint_from_user(s: buf, count, base: 10, res: &value); |
| 1480 | if (rc) |
| 1481 | return rc; |
| 1482 | |
| 1483 | value = value ? 1 : 0; |
| 1484 | |
| 1485 | hl_debugfs_led_set(hdev, led: 1, state: value); |
| 1486 | |
| 1487 | return count; |
| 1488 | } |
| 1489 | |
| 1490 | static ssize_t hl_led2_write(struct file *f, const char __user *buf, |
| 1491 | size_t count, loff_t *ppos) |
| 1492 | { |
| 1493 | struct hl_dbg_device_entry *entry = file_inode(f)->i_private; |
| 1494 | struct hl_device *hdev = entry->hdev; |
| 1495 | u32 value; |
| 1496 | ssize_t rc; |
| 1497 | |
| 1498 | rc = kstrtouint_from_user(s: buf, count, base: 10, res: &value); |
| 1499 | if (rc) |
| 1500 | return rc; |
| 1501 | |
| 1502 | value = value ? 1 : 0; |
| 1503 | |
| 1504 | hl_debugfs_led_set(hdev, led: 2, state: value); |
| 1505 | |
| 1506 | return count; |
| 1507 | } |
| 1508 | |
| 1509 | static ssize_t hl_device_read(struct file *f, char __user *buf, |
| 1510 | size_t count, loff_t *ppos) |
| 1511 | { |
| 1512 | static const char *help = |
| 1513 | "Valid values: disable, enable, suspend, resume, cpu_timeout\n" ; |
| 1514 | return simple_read_from_buffer(to: buf, count, ppos, from: help, strlen(help)); |
| 1515 | } |
| 1516 | |
| 1517 | static ssize_t hl_device_write(struct file *f, const char __user *buf, |
| 1518 | size_t count, loff_t *ppos) |
| 1519 | { |
| 1520 | struct hl_dbg_device_entry *entry = file_inode(f)->i_private; |
| 1521 | struct hl_device *hdev = entry->hdev; |
| 1522 | char data[30] = {0}; |
| 1523 | |
| 1524 | /* don't allow partial writes */ |
| 1525 | if (*ppos != 0) |
| 1526 | return 0; |
| 1527 | |
| 1528 | simple_write_to_buffer(to: data, available: 29, ppos, from: buf, count); |
| 1529 | |
| 1530 | if (strncmp("disable" , data, strlen("disable" )) == 0) { |
| 1531 | hdev->disabled = true; |
| 1532 | } else if (strncmp("enable" , data, strlen("enable" )) == 0) { |
| 1533 | hdev->disabled = false; |
| 1534 | } else if (strncmp("suspend" , data, strlen("suspend" )) == 0) { |
| 1535 | hdev->asic_funcs->suspend(hdev); |
| 1536 | } else if (strncmp("resume" , data, strlen("resume" )) == 0) { |
| 1537 | hdev->asic_funcs->resume(hdev); |
| 1538 | } else if (strncmp("cpu_timeout" , data, strlen("cpu_timeout" )) == 0) { |
| 1539 | hdev->device_cpu_disabled = true; |
| 1540 | } else { |
| 1541 | dev_err(hdev->dev, |
| 1542 | "Valid values: disable, enable, suspend, resume, cpu_timeout\n" ); |
| 1543 | count = -EINVAL; |
| 1544 | } |
| 1545 | |
| 1546 | return count; |
| 1547 | } |
| 1548 | |
| 1549 | static ssize_t hl_clk_gate_read(struct file *f, char __user *buf, |
| 1550 | size_t count, loff_t *ppos) |
| 1551 | { |
| 1552 | return 0; |
| 1553 | } |
| 1554 | |
| 1555 | static ssize_t hl_clk_gate_write(struct file *f, const char __user *buf, |
| 1556 | size_t count, loff_t *ppos) |
| 1557 | { |
| 1558 | return count; |
| 1559 | } |
| 1560 | |
| 1561 | static ssize_t hl_stop_on_err_read(struct file *f, char __user *buf, |
| 1562 | size_t count, loff_t *ppos) |
| 1563 | { |
| 1564 | struct hl_dbg_device_entry *entry = file_inode(f)->i_private; |
| 1565 | struct hl_device *hdev = entry->hdev; |
| 1566 | char tmp_buf[200]; |
| 1567 | ssize_t rc; |
| 1568 | |
| 1569 | if (!hdev->asic_prop.configurable_stop_on_err) |
| 1570 | return -EOPNOTSUPP; |
| 1571 | |
| 1572 | if (*ppos) |
| 1573 | return 0; |
| 1574 | |
| 1575 | sprintf(buf: tmp_buf, fmt: "%d\n" , hdev->stop_on_err); |
| 1576 | rc = simple_read_from_buffer(to: buf, strlen(tmp_buf) + 1, ppos, from: tmp_buf, |
| 1577 | strlen(tmp_buf) + 1); |
| 1578 | |
| 1579 | return rc; |
| 1580 | } |
| 1581 | |
| 1582 | static ssize_t hl_stop_on_err_write(struct file *f, const char __user *buf, |
| 1583 | size_t count, loff_t *ppos) |
| 1584 | { |
| 1585 | struct hl_dbg_device_entry *entry = file_inode(f)->i_private; |
| 1586 | struct hl_device *hdev = entry->hdev; |
| 1587 | u32 value; |
| 1588 | ssize_t rc; |
| 1589 | |
| 1590 | if (!hdev->asic_prop.configurable_stop_on_err) |
| 1591 | return -EOPNOTSUPP; |
| 1592 | |
| 1593 | if (hdev->reset_info.in_reset) { |
| 1594 | dev_warn_ratelimited(hdev->dev, |
| 1595 | "Can't change stop on error during reset\n" ); |
| 1596 | return 0; |
| 1597 | } |
| 1598 | |
| 1599 | rc = kstrtouint_from_user(s: buf, count, base: 10, res: &value); |
| 1600 | if (rc) |
| 1601 | return rc; |
| 1602 | |
| 1603 | hdev->stop_on_err = value ? 1 : 0; |
| 1604 | |
| 1605 | hl_device_reset(hdev, flags: 0); |
| 1606 | |
| 1607 | return count; |
| 1608 | } |
| 1609 | |
| 1610 | static ssize_t hl_security_violations_read(struct file *f, char __user *buf, |
| 1611 | size_t count, loff_t *ppos) |
| 1612 | { |
| 1613 | struct hl_dbg_device_entry *entry = file_inode(f)->i_private; |
| 1614 | struct hl_device *hdev = entry->hdev; |
| 1615 | |
| 1616 | hdev->asic_funcs->ack_protection_bits_errors(hdev); |
| 1617 | |
| 1618 | return 0; |
| 1619 | } |
| 1620 | |
| 1621 | static ssize_t hl_state_dump_read(struct file *f, char __user *buf, |
| 1622 | size_t count, loff_t *ppos) |
| 1623 | { |
| 1624 | struct hl_dbg_device_entry *entry = file_inode(f)->i_private; |
| 1625 | ssize_t rc; |
| 1626 | |
| 1627 | down_read(sem: &entry->state_dump_sem); |
| 1628 | if (!entry->state_dump[entry->state_dump_head]) |
| 1629 | rc = 0; |
| 1630 | else |
| 1631 | rc = simple_read_from_buffer( |
| 1632 | to: buf, count, ppos, |
| 1633 | from: entry->state_dump[entry->state_dump_head], |
| 1634 | strlen(entry->state_dump[entry->state_dump_head])); |
| 1635 | up_read(sem: &entry->state_dump_sem); |
| 1636 | |
| 1637 | return rc; |
| 1638 | } |
| 1639 | |
| 1640 | static ssize_t hl_state_dump_write(struct file *f, const char __user *buf, |
| 1641 | size_t count, loff_t *ppos) |
| 1642 | { |
| 1643 | struct hl_dbg_device_entry *entry = file_inode(f)->i_private; |
| 1644 | struct hl_device *hdev = entry->hdev; |
| 1645 | ssize_t rc; |
| 1646 | u32 size; |
| 1647 | int i; |
| 1648 | |
| 1649 | rc = kstrtouint_from_user(s: buf, count, base: 10, res: &size); |
| 1650 | if (rc) |
| 1651 | return rc; |
| 1652 | |
| 1653 | if (size <= 0 || size >= ARRAY_SIZE(entry->state_dump)) { |
| 1654 | dev_err(hdev->dev, "Invalid number of dumps to skip\n" ); |
| 1655 | return -EINVAL; |
| 1656 | } |
| 1657 | |
| 1658 | if (entry->state_dump[entry->state_dump_head]) { |
| 1659 | down_write(sem: &entry->state_dump_sem); |
| 1660 | for (i = 0; i < size; ++i) { |
| 1661 | vfree(addr: entry->state_dump[entry->state_dump_head]); |
| 1662 | entry->state_dump[entry->state_dump_head] = NULL; |
| 1663 | if (entry->state_dump_head > 0) |
| 1664 | entry->state_dump_head--; |
| 1665 | else |
| 1666 | entry->state_dump_head = |
| 1667 | ARRAY_SIZE(entry->state_dump) - 1; |
| 1668 | } |
| 1669 | up_write(sem: &entry->state_dump_sem); |
| 1670 | } |
| 1671 | |
| 1672 | return count; |
| 1673 | } |
| 1674 | |
| 1675 | static ssize_t hl_timeout_locked_read(struct file *f, char __user *buf, |
| 1676 | size_t count, loff_t *ppos) |
| 1677 | { |
| 1678 | struct hl_dbg_device_entry *entry = file_inode(f)->i_private; |
| 1679 | struct hl_device *hdev = entry->hdev; |
| 1680 | char tmp_buf[200]; |
| 1681 | ssize_t rc; |
| 1682 | |
| 1683 | if (*ppos) |
| 1684 | return 0; |
| 1685 | |
| 1686 | sprintf(buf: tmp_buf, fmt: "%d\n" , |
| 1687 | jiffies_to_msecs(j: hdev->timeout_jiffies) / 1000); |
| 1688 | rc = simple_read_from_buffer(to: buf, strlen(tmp_buf) + 1, ppos, from: tmp_buf, |
| 1689 | strlen(tmp_buf) + 1); |
| 1690 | |
| 1691 | return rc; |
| 1692 | } |
| 1693 | |
| 1694 | static ssize_t hl_timeout_locked_write(struct file *f, const char __user *buf, |
| 1695 | size_t count, loff_t *ppos) |
| 1696 | { |
| 1697 | struct hl_dbg_device_entry *entry = file_inode(f)->i_private; |
| 1698 | struct hl_device *hdev = entry->hdev; |
| 1699 | u32 value; |
| 1700 | ssize_t rc; |
| 1701 | |
| 1702 | rc = kstrtouint_from_user(s: buf, count, base: 10, res: &value); |
| 1703 | if (rc) |
| 1704 | return rc; |
| 1705 | |
| 1706 | if (value) |
| 1707 | hdev->timeout_jiffies = secs_to_jiffies(value); |
| 1708 | else |
| 1709 | hdev->timeout_jiffies = MAX_SCHEDULE_TIMEOUT; |
| 1710 | |
| 1711 | return count; |
| 1712 | } |
| 1713 | |
| 1714 | static ssize_t hl_check_razwi_happened(struct file *f, char __user *buf, |
| 1715 | size_t count, loff_t *ppos) |
| 1716 | { |
| 1717 | struct hl_dbg_device_entry *entry = file_inode(f)->i_private; |
| 1718 | struct hl_device *hdev = entry->hdev; |
| 1719 | |
| 1720 | hdev->asic_funcs->check_if_razwi_happened(hdev); |
| 1721 | |
| 1722 | return 0; |
| 1723 | } |
| 1724 | |
| 1725 | static const struct file_operations hl_mem_scrub_fops = { |
| 1726 | .owner = THIS_MODULE, |
| 1727 | .write = hl_memory_scrub, |
| 1728 | }; |
| 1729 | |
| 1730 | static const struct file_operations hl_data32b_fops = { |
| 1731 | .owner = THIS_MODULE, |
| 1732 | .read = hl_data_read32, |
| 1733 | .write = hl_data_write32 |
| 1734 | }; |
| 1735 | |
| 1736 | static const struct file_operations hl_data64b_fops = { |
| 1737 | .owner = THIS_MODULE, |
| 1738 | .read = hl_data_read64, |
| 1739 | .write = hl_data_write64 |
| 1740 | }; |
| 1741 | |
| 1742 | static const struct file_operations hl_dma_size_fops = { |
| 1743 | .owner = THIS_MODULE, |
| 1744 | .write = hl_dma_size_write |
| 1745 | }; |
| 1746 | |
| 1747 | static const struct file_operations hl_monitor_dump_fops = { |
| 1748 | .owner = THIS_MODULE, |
| 1749 | .write = hl_monitor_dump_trigger |
| 1750 | }; |
| 1751 | |
| 1752 | static const struct file_operations hl_i2c_data_fops = { |
| 1753 | .owner = THIS_MODULE, |
| 1754 | .read = hl_i2c_data_read, |
| 1755 | .write = hl_i2c_data_write |
| 1756 | }; |
| 1757 | |
| 1758 | static const struct file_operations hl_power_fops = { |
| 1759 | .owner = THIS_MODULE, |
| 1760 | .read = hl_get_power_state, |
| 1761 | .write = hl_set_power_state |
| 1762 | }; |
| 1763 | |
| 1764 | static const struct file_operations hl_led0_fops = { |
| 1765 | .owner = THIS_MODULE, |
| 1766 | .write = hl_led0_write |
| 1767 | }; |
| 1768 | |
| 1769 | static const struct file_operations hl_led1_fops = { |
| 1770 | .owner = THIS_MODULE, |
| 1771 | .write = hl_led1_write |
| 1772 | }; |
| 1773 | |
| 1774 | static const struct file_operations hl_led2_fops = { |
| 1775 | .owner = THIS_MODULE, |
| 1776 | .write = hl_led2_write |
| 1777 | }; |
| 1778 | |
| 1779 | static const struct file_operations hl_device_fops = { |
| 1780 | .owner = THIS_MODULE, |
| 1781 | .read = hl_device_read, |
| 1782 | .write = hl_device_write |
| 1783 | }; |
| 1784 | |
| 1785 | static const struct file_operations hl_clk_gate_fops = { |
| 1786 | .owner = THIS_MODULE, |
| 1787 | .read = hl_clk_gate_read, |
| 1788 | .write = hl_clk_gate_write |
| 1789 | }; |
| 1790 | |
| 1791 | static const struct file_operations hl_stop_on_err_fops = { |
| 1792 | .owner = THIS_MODULE, |
| 1793 | .read = hl_stop_on_err_read, |
| 1794 | .write = hl_stop_on_err_write |
| 1795 | }; |
| 1796 | |
| 1797 | static const struct file_operations hl_security_violations_fops = { |
| 1798 | .owner = THIS_MODULE, |
| 1799 | .read = hl_security_violations_read |
| 1800 | }; |
| 1801 | |
| 1802 | static const struct file_operations hl_state_dump_fops = { |
| 1803 | .owner = THIS_MODULE, |
| 1804 | .read = hl_state_dump_read, |
| 1805 | .write = hl_state_dump_write |
| 1806 | }; |
| 1807 | |
| 1808 | static const struct file_operations hl_timeout_locked_fops = { |
| 1809 | .owner = THIS_MODULE, |
| 1810 | .read = hl_timeout_locked_read, |
| 1811 | .write = hl_timeout_locked_write |
| 1812 | }; |
| 1813 | |
| 1814 | static const struct file_operations hl_razwi_check_fops = { |
| 1815 | .owner = THIS_MODULE, |
| 1816 | .read = hl_check_razwi_happened |
| 1817 | }; |
| 1818 | |
| 1819 | static const struct hl_info_list hl_debugfs_list[] = { |
| 1820 | {"command_buffers" , command_buffers_show, NULL}, |
| 1821 | {"command_submission" , command_submission_show, NULL}, |
| 1822 | {"command_submission_jobs" , command_submission_jobs_show, NULL}, |
| 1823 | {"userptr" , userptr_show, NULL}, |
| 1824 | {"vm" , vm_show, NULL}, |
| 1825 | {"userptr_lookup" , userptr_lookup_show, userptr_lookup_write}, |
| 1826 | {"mmu" , mmu_show, mmu_asid_va_write}, |
| 1827 | {"mmu_error" , mmu_ack_error, mmu_ack_error_value_write}, |
| 1828 | {"engines" , engines_show, NULL}, |
| 1829 | #ifdef CONFIG_HL_HLDIO |
| 1830 | /* DIO entries - only created if NVMe is supported */ |
| 1831 | {"dio_ssd2hl" , dio_ssd2hl_show, dio_ssd2hl_write}, |
| 1832 | {"dio_stats" , dio_stats_show, NULL}, |
| 1833 | {"dio_reset" , dio_reset_show, dio_reset_write}, |
| 1834 | {"dio_hl2ssd" , dio_hl2ssd_show, dio_hl2ssd_write}, |
| 1835 | #endif |
| 1836 | }; |
| 1837 | |
| 1838 | static int hl_debugfs_open(struct inode *inode, struct file *file) |
| 1839 | { |
| 1840 | struct hl_debugfs_entry *node = inode->i_private; |
| 1841 | |
| 1842 | return single_open(file, node->info_ent->show, node); |
| 1843 | } |
| 1844 | |
| 1845 | static ssize_t hl_debugfs_write(struct file *file, const char __user *buf, |
| 1846 | size_t count, loff_t *f_pos) |
| 1847 | { |
| 1848 | struct hl_debugfs_entry *node = file->f_inode->i_private; |
| 1849 | |
| 1850 | if (node->info_ent->write) |
| 1851 | return node->info_ent->write(file, buf, count, f_pos); |
| 1852 | else |
| 1853 | return -EINVAL; |
| 1854 | |
| 1855 | } |
| 1856 | |
| 1857 | static const struct file_operations hl_debugfs_fops = { |
| 1858 | .owner = THIS_MODULE, |
| 1859 | .open = hl_debugfs_open, |
| 1860 | .read = seq_read, |
| 1861 | .write = hl_debugfs_write, |
| 1862 | .llseek = seq_lseek, |
| 1863 | .release = single_release, |
| 1864 | }; |
| 1865 | |
| 1866 | static void add_secured_nodes(struct hl_dbg_device_entry *dev_entry, struct dentry *root) |
| 1867 | { |
| 1868 | debugfs_create_u8(name: "i2c_bus" , |
| 1869 | mode: 0644, |
| 1870 | parent: root, |
| 1871 | value: &dev_entry->i2c_bus); |
| 1872 | |
| 1873 | debugfs_create_u8(name: "i2c_addr" , |
| 1874 | mode: 0644, |
| 1875 | parent: root, |
| 1876 | value: &dev_entry->i2c_addr); |
| 1877 | |
| 1878 | debugfs_create_u8(name: "i2c_reg" , |
| 1879 | mode: 0644, |
| 1880 | parent: root, |
| 1881 | value: &dev_entry->i2c_reg); |
| 1882 | |
| 1883 | debugfs_create_u8(name: "i2c_len" , |
| 1884 | mode: 0644, |
| 1885 | parent: root, |
| 1886 | value: &dev_entry->i2c_len); |
| 1887 | |
| 1888 | debugfs_create_file("i2c_data" , |
| 1889 | 0644, |
| 1890 | root, |
| 1891 | dev_entry, |
| 1892 | &hl_i2c_data_fops); |
| 1893 | |
| 1894 | debugfs_create_file("led0" , |
| 1895 | 0200, |
| 1896 | root, |
| 1897 | dev_entry, |
| 1898 | &hl_led0_fops); |
| 1899 | |
| 1900 | debugfs_create_file("led1" , |
| 1901 | 0200, |
| 1902 | root, |
| 1903 | dev_entry, |
| 1904 | &hl_led1_fops); |
| 1905 | |
| 1906 | debugfs_create_file("led2" , |
| 1907 | 0200, |
| 1908 | root, |
| 1909 | dev_entry, |
| 1910 | &hl_led2_fops); |
| 1911 | } |
| 1912 | |
| 1913 | static void add_files_to_device(struct hl_device *hdev, struct hl_dbg_device_entry *dev_entry, |
| 1914 | struct dentry *root) |
| 1915 | { |
| 1916 | int count = ARRAY_SIZE(hl_debugfs_list); |
| 1917 | struct hl_debugfs_entry *entry; |
| 1918 | int i; |
| 1919 | |
| 1920 | debugfs_create_x64(name: "memory_scrub_val" , |
| 1921 | mode: 0644, |
| 1922 | parent: root, |
| 1923 | value: &hdev->memory_scrub_val); |
| 1924 | |
| 1925 | debugfs_create_file("memory_scrub" , |
| 1926 | 0200, |
| 1927 | root, |
| 1928 | dev_entry, |
| 1929 | &hl_mem_scrub_fops); |
| 1930 | |
| 1931 | debugfs_create_x64(name: "addr" , |
| 1932 | mode: 0644, |
| 1933 | parent: root, |
| 1934 | value: &dev_entry->addr); |
| 1935 | |
| 1936 | debugfs_create_file("data32" , |
| 1937 | 0644, |
| 1938 | root, |
| 1939 | dev_entry, |
| 1940 | &hl_data32b_fops); |
| 1941 | |
| 1942 | debugfs_create_file("data64" , |
| 1943 | 0644, |
| 1944 | root, |
| 1945 | dev_entry, |
| 1946 | &hl_data64b_fops); |
| 1947 | |
| 1948 | debugfs_create_file("set_power_state" , |
| 1949 | 0644, |
| 1950 | root, |
| 1951 | dev_entry, |
| 1952 | &hl_power_fops); |
| 1953 | |
| 1954 | debugfs_create_file("device" , |
| 1955 | 0644, |
| 1956 | root, |
| 1957 | dev_entry, |
| 1958 | &hl_device_fops); |
| 1959 | |
| 1960 | debugfs_create_file("clk_gate" , |
| 1961 | 0644, |
| 1962 | root, |
| 1963 | dev_entry, |
| 1964 | &hl_clk_gate_fops); |
| 1965 | |
| 1966 | debugfs_create_file("stop_on_err" , |
| 1967 | 0644, |
| 1968 | root, |
| 1969 | dev_entry, |
| 1970 | &hl_stop_on_err_fops); |
| 1971 | |
| 1972 | debugfs_create_file("dump_security_violations" , |
| 1973 | 0400, |
| 1974 | root, |
| 1975 | dev_entry, |
| 1976 | &hl_security_violations_fops); |
| 1977 | |
| 1978 | debugfs_create_file("dump_razwi_events" , |
| 1979 | 0400, |
| 1980 | root, |
| 1981 | dev_entry, |
| 1982 | &hl_razwi_check_fops); |
| 1983 | |
| 1984 | debugfs_create_file("dma_size" , |
| 1985 | 0200, |
| 1986 | root, |
| 1987 | dev_entry, |
| 1988 | &hl_dma_size_fops); |
| 1989 | |
| 1990 | debugfs_create_blob(name: "data_dma" , |
| 1991 | mode: 0400, |
| 1992 | parent: root, |
| 1993 | blob: &dev_entry->data_dma_blob_desc); |
| 1994 | |
| 1995 | debugfs_create_file("monitor_dump_trig" , |
| 1996 | 0200, |
| 1997 | root, |
| 1998 | dev_entry, |
| 1999 | &hl_monitor_dump_fops); |
| 2000 | |
| 2001 | debugfs_create_blob(name: "monitor_dump" , |
| 2002 | mode: 0400, |
| 2003 | parent: root, |
| 2004 | blob: &dev_entry->mon_dump_blob_desc); |
| 2005 | |
| 2006 | debugfs_create_x8(name: "skip_reset_on_timeout" , |
| 2007 | mode: 0644, |
| 2008 | parent: root, |
| 2009 | value: &hdev->reset_info.skip_reset_on_timeout); |
| 2010 | |
| 2011 | debugfs_create_file("state_dump" , |
| 2012 | 0644, |
| 2013 | root, |
| 2014 | dev_entry, |
| 2015 | &hl_state_dump_fops); |
| 2016 | |
| 2017 | debugfs_create_file("timeout_locked" , |
| 2018 | 0644, |
| 2019 | root, |
| 2020 | dev_entry, |
| 2021 | &hl_timeout_locked_fops); |
| 2022 | |
| 2023 | debugfs_create_u32(name: "device_release_watchdog_timeout" , |
| 2024 | mode: 0644, |
| 2025 | parent: root, |
| 2026 | value: &hdev->device_release_watchdog_timeout_sec); |
| 2027 | |
| 2028 | debugfs_create_u16(name: "server_type" , |
| 2029 | mode: 0444, |
| 2030 | parent: root, |
| 2031 | value: &hdev->asic_prop.server_type); |
| 2032 | |
| 2033 | for (i = 0, entry = dev_entry->entry_arr ; i < count ; i++, entry++) { |
| 2034 | /* Skip DIO entries if NVMe is not supported */ |
| 2035 | if (strncmp(hl_debugfs_list[i].name, "dio_" , 4) == 0 && |
| 2036 | !hdev->asic_prop.supports_nvme) |
| 2037 | continue; |
| 2038 | |
| 2039 | debugfs_create_file(hl_debugfs_list[i].name, |
| 2040 | 0644, |
| 2041 | root, |
| 2042 | entry, |
| 2043 | &hl_debugfs_fops); |
| 2044 | entry->info_ent = &hl_debugfs_list[i]; |
| 2045 | entry->dev_entry = dev_entry; |
| 2046 | } |
| 2047 | } |
| 2048 | |
| 2049 | int hl_debugfs_device_init(struct hl_device *hdev) |
| 2050 | { |
| 2051 | struct hl_dbg_device_entry *dev_entry = &hdev->hl_debugfs; |
| 2052 | int count = ARRAY_SIZE(hl_debugfs_list); |
| 2053 | |
| 2054 | dev_entry->hdev = hdev; |
| 2055 | dev_entry->entry_arr = kmalloc_array(count, sizeof(struct hl_debugfs_entry), GFP_KERNEL); |
| 2056 | if (!dev_entry->entry_arr) |
| 2057 | return -ENOMEM; |
| 2058 | |
| 2059 | dev_entry->data_dma_blob_desc.size = 0; |
| 2060 | dev_entry->data_dma_blob_desc.data = NULL; |
| 2061 | dev_entry->mon_dump_blob_desc.size = 0; |
| 2062 | dev_entry->mon_dump_blob_desc.data = NULL; |
| 2063 | |
| 2064 | INIT_LIST_HEAD(list: &dev_entry->file_list); |
| 2065 | INIT_LIST_HEAD(list: &dev_entry->cb_list); |
| 2066 | INIT_LIST_HEAD(list: &dev_entry->cs_list); |
| 2067 | INIT_LIST_HEAD(list: &dev_entry->cs_job_list); |
| 2068 | INIT_LIST_HEAD(list: &dev_entry->userptr_list); |
| 2069 | INIT_LIST_HEAD(list: &dev_entry->ctx_mem_hash_list); |
| 2070 | mutex_init(&dev_entry->file_mutex); |
| 2071 | init_rwsem(&dev_entry->state_dump_sem); |
| 2072 | spin_lock_init(&dev_entry->cb_spinlock); |
| 2073 | spin_lock_init(&dev_entry->cs_spinlock); |
| 2074 | spin_lock_init(&dev_entry->cs_job_spinlock); |
| 2075 | spin_lock_init(&dev_entry->userptr_spinlock); |
| 2076 | mutex_init(&dev_entry->ctx_mem_hash_mutex); |
| 2077 | |
| 2078 | spin_lock_init(&hdev->debugfs_cfg_accesses.lock); |
| 2079 | hdev->debugfs_cfg_accesses.head = 0; /* already zero by alloc but explicit init is fine */ |
| 2080 | |
| 2081 | #ifdef CONFIG_HL_HLDIO |
| 2082 | /* Initialize DIO statistics */ |
| 2083 | memset(&dev_entry->dio_stats, 0, sizeof(dev_entry->dio_stats)); |
| 2084 | #endif |
| 2085 | |
| 2086 | return 0; |
| 2087 | } |
| 2088 | |
| 2089 | void hl_debugfs_device_fini(struct hl_device *hdev) |
| 2090 | { |
| 2091 | struct hl_dbg_device_entry *entry = &hdev->hl_debugfs; |
| 2092 | int i; |
| 2093 | |
| 2094 | mutex_destroy(lock: &entry->ctx_mem_hash_mutex); |
| 2095 | mutex_destroy(lock: &entry->file_mutex); |
| 2096 | |
| 2097 | vfree(addr: entry->data_dma_blob_desc.data); |
| 2098 | vfree(addr: entry->mon_dump_blob_desc.data); |
| 2099 | |
| 2100 | for (i = 0; i < ARRAY_SIZE(entry->state_dump); ++i) |
| 2101 | vfree(addr: entry->state_dump[i]); |
| 2102 | |
| 2103 | kfree(objp: entry->entry_arr); |
| 2104 | |
| 2105 | } |
| 2106 | |
| 2107 | void hl_debugfs_add_device(struct hl_device *hdev) |
| 2108 | { |
| 2109 | struct hl_dbg_device_entry *dev_entry = &hdev->hl_debugfs; |
| 2110 | |
| 2111 | dev_entry->root = hdev->drm.accel->debugfs_root; |
| 2112 | |
| 2113 | add_files_to_device(hdev, dev_entry, root: dev_entry->root); |
| 2114 | |
| 2115 | if (!hdev->asic_prop.fw_security_enabled) |
| 2116 | add_secured_nodes(dev_entry, root: dev_entry->root); |
| 2117 | |
| 2118 | } |
| 2119 | |
| 2120 | void hl_debugfs_add_file(struct hl_fpriv *hpriv) |
| 2121 | { |
| 2122 | struct hl_dbg_device_entry *dev_entry = &hpriv->hdev->hl_debugfs; |
| 2123 | |
| 2124 | mutex_lock(&dev_entry->file_mutex); |
| 2125 | list_add(new: &hpriv->debugfs_list, head: &dev_entry->file_list); |
| 2126 | mutex_unlock(lock: &dev_entry->file_mutex); |
| 2127 | } |
| 2128 | |
| 2129 | void hl_debugfs_remove_file(struct hl_fpriv *hpriv) |
| 2130 | { |
| 2131 | struct hl_dbg_device_entry *dev_entry = &hpriv->hdev->hl_debugfs; |
| 2132 | |
| 2133 | mutex_lock(&dev_entry->file_mutex); |
| 2134 | list_del(entry: &hpriv->debugfs_list); |
| 2135 | mutex_unlock(lock: &dev_entry->file_mutex); |
| 2136 | } |
| 2137 | |
| 2138 | void hl_debugfs_add_cb(struct hl_cb *cb) |
| 2139 | { |
| 2140 | struct hl_dbg_device_entry *dev_entry = &cb->hdev->hl_debugfs; |
| 2141 | |
| 2142 | spin_lock(lock: &dev_entry->cb_spinlock); |
| 2143 | list_add(new: &cb->debugfs_list, head: &dev_entry->cb_list); |
| 2144 | spin_unlock(lock: &dev_entry->cb_spinlock); |
| 2145 | } |
| 2146 | |
| 2147 | void hl_debugfs_remove_cb(struct hl_cb *cb) |
| 2148 | { |
| 2149 | struct hl_dbg_device_entry *dev_entry = &cb->hdev->hl_debugfs; |
| 2150 | |
| 2151 | spin_lock(lock: &dev_entry->cb_spinlock); |
| 2152 | list_del(entry: &cb->debugfs_list); |
| 2153 | spin_unlock(lock: &dev_entry->cb_spinlock); |
| 2154 | } |
| 2155 | |
| 2156 | void hl_debugfs_add_cs(struct hl_cs *cs) |
| 2157 | { |
| 2158 | struct hl_dbg_device_entry *dev_entry = &cs->ctx->hdev->hl_debugfs; |
| 2159 | |
| 2160 | spin_lock(lock: &dev_entry->cs_spinlock); |
| 2161 | list_add(new: &cs->debugfs_list, head: &dev_entry->cs_list); |
| 2162 | spin_unlock(lock: &dev_entry->cs_spinlock); |
| 2163 | } |
| 2164 | |
| 2165 | void hl_debugfs_remove_cs(struct hl_cs *cs) |
| 2166 | { |
| 2167 | struct hl_dbg_device_entry *dev_entry = &cs->ctx->hdev->hl_debugfs; |
| 2168 | |
| 2169 | spin_lock(lock: &dev_entry->cs_spinlock); |
| 2170 | list_del(entry: &cs->debugfs_list); |
| 2171 | spin_unlock(lock: &dev_entry->cs_spinlock); |
| 2172 | } |
| 2173 | |
| 2174 | void hl_debugfs_add_job(struct hl_device *hdev, struct hl_cs_job *job) |
| 2175 | { |
| 2176 | struct hl_dbg_device_entry *dev_entry = &hdev->hl_debugfs; |
| 2177 | |
| 2178 | spin_lock(lock: &dev_entry->cs_job_spinlock); |
| 2179 | list_add(new: &job->debugfs_list, head: &dev_entry->cs_job_list); |
| 2180 | spin_unlock(lock: &dev_entry->cs_job_spinlock); |
| 2181 | } |
| 2182 | |
| 2183 | void hl_debugfs_remove_job(struct hl_device *hdev, struct hl_cs_job *job) |
| 2184 | { |
| 2185 | struct hl_dbg_device_entry *dev_entry = &hdev->hl_debugfs; |
| 2186 | |
| 2187 | spin_lock(lock: &dev_entry->cs_job_spinlock); |
| 2188 | list_del(entry: &job->debugfs_list); |
| 2189 | spin_unlock(lock: &dev_entry->cs_job_spinlock); |
| 2190 | } |
| 2191 | |
| 2192 | void hl_debugfs_add_userptr(struct hl_device *hdev, struct hl_userptr *userptr) |
| 2193 | { |
| 2194 | struct hl_dbg_device_entry *dev_entry = &hdev->hl_debugfs; |
| 2195 | |
| 2196 | spin_lock(lock: &dev_entry->userptr_spinlock); |
| 2197 | list_add(new: &userptr->debugfs_list, head: &dev_entry->userptr_list); |
| 2198 | spin_unlock(lock: &dev_entry->userptr_spinlock); |
| 2199 | } |
| 2200 | |
| 2201 | void hl_debugfs_remove_userptr(struct hl_device *hdev, |
| 2202 | struct hl_userptr *userptr) |
| 2203 | { |
| 2204 | struct hl_dbg_device_entry *dev_entry = &hdev->hl_debugfs; |
| 2205 | |
| 2206 | spin_lock(lock: &dev_entry->userptr_spinlock); |
| 2207 | list_del(entry: &userptr->debugfs_list); |
| 2208 | spin_unlock(lock: &dev_entry->userptr_spinlock); |
| 2209 | } |
| 2210 | |
| 2211 | void hl_debugfs_add_ctx_mem_hash(struct hl_device *hdev, struct hl_ctx *ctx) |
| 2212 | { |
| 2213 | struct hl_dbg_device_entry *dev_entry = &hdev->hl_debugfs; |
| 2214 | |
| 2215 | mutex_lock(&dev_entry->ctx_mem_hash_mutex); |
| 2216 | list_add(new: &ctx->debugfs_list, head: &dev_entry->ctx_mem_hash_list); |
| 2217 | mutex_unlock(lock: &dev_entry->ctx_mem_hash_mutex); |
| 2218 | } |
| 2219 | |
| 2220 | void hl_debugfs_remove_ctx_mem_hash(struct hl_device *hdev, struct hl_ctx *ctx) |
| 2221 | { |
| 2222 | struct hl_dbg_device_entry *dev_entry = &hdev->hl_debugfs; |
| 2223 | |
| 2224 | mutex_lock(&dev_entry->ctx_mem_hash_mutex); |
| 2225 | list_del(entry: &ctx->debugfs_list); |
| 2226 | mutex_unlock(lock: &dev_entry->ctx_mem_hash_mutex); |
| 2227 | } |
| 2228 | |
| 2229 | /** |
| 2230 | * hl_debugfs_set_state_dump - register state dump making it accessible via |
| 2231 | * debugfs |
| 2232 | * @hdev: pointer to the device structure |
| 2233 | * @data: the actual dump data |
| 2234 | * @length: the length of the data |
| 2235 | */ |
| 2236 | void hl_debugfs_set_state_dump(struct hl_device *hdev, char *data, |
| 2237 | unsigned long length) |
| 2238 | { |
| 2239 | struct hl_dbg_device_entry *dev_entry = &hdev->hl_debugfs; |
| 2240 | |
| 2241 | down_write(sem: &dev_entry->state_dump_sem); |
| 2242 | |
| 2243 | dev_entry->state_dump_head = (dev_entry->state_dump_head + 1) % |
| 2244 | ARRAY_SIZE(dev_entry->state_dump); |
| 2245 | vfree(addr: dev_entry->state_dump[dev_entry->state_dump_head]); |
| 2246 | dev_entry->state_dump[dev_entry->state_dump_head] = data; |
| 2247 | |
| 2248 | up_write(sem: &dev_entry->state_dump_sem); |
| 2249 | } |
| 2250 | |
| 2251 | |