| // SPDX-License-Identifier: GPL-2.0 |
| |
| /* |
| * Copyright 2016-2021 HabanaLabs, Ltd. |
| * All Rights Reserved. |
| */ |
| |
| #include "habanalabs.h" |
| #include "../include/hw_ip/mmu/mmu_general.h" |
| |
| #include <linux/pci.h> |
| #include <linux/uaccess.h> |
| #include <linux/vmalloc.h> |
| #include <linux/iommu.h> |
| |
| #define MMU_ADDR_BUF_SIZE 40 |
| #define MMU_ASID_BUF_SIZE 10 |
| #define MMU_KBUF_SIZE (MMU_ADDR_BUF_SIZE + MMU_ASID_BUF_SIZE) |
| #define I2C_MAX_TRANSACTION_LEN 8 |
| |
| static int hl_debugfs_i2c_read(struct hl_device *hdev, u8 i2c_bus, u8 i2c_addr, |
| u8 i2c_reg, u8 i2c_len, u64 *val) |
| { |
| struct cpucp_packet pkt; |
| int rc; |
| |
| if (!hl_device_operational(hdev, NULL)) |
| return -EBUSY; |
| |
| if (i2c_len > I2C_MAX_TRANSACTION_LEN) { |
| dev_err(hdev->dev, "I2C transaction length %u, exceeds maximum of %u\n", |
| i2c_len, I2C_MAX_TRANSACTION_LEN); |
| return -EINVAL; |
| } |
| |
| memset(&pkt, 0, sizeof(pkt)); |
| |
| pkt.ctl = cpu_to_le32(CPUCP_PACKET_I2C_RD << |
| CPUCP_PKT_CTL_OPCODE_SHIFT); |
| pkt.i2c_bus = i2c_bus; |
| pkt.i2c_addr = i2c_addr; |
| pkt.i2c_reg = i2c_reg; |
| pkt.i2c_len = i2c_len; |
| |
| rc = hdev->asic_funcs->send_cpu_message(hdev, (u32 *) &pkt, sizeof(pkt), 0, val); |
| if (rc && rc != -EAGAIN) |
| dev_err(hdev->dev, "Failed to read from I2C, error %d\n", rc); |
| |
| return rc; |
| } |
| |
| static int hl_debugfs_i2c_write(struct hl_device *hdev, u8 i2c_bus, u8 i2c_addr, |
| u8 i2c_reg, u8 i2c_len, u64 val) |
| { |
| struct cpucp_packet pkt; |
| int rc; |
| |
| if (!hl_device_operational(hdev, NULL)) |
| return -EBUSY; |
| |
| if (i2c_len > I2C_MAX_TRANSACTION_LEN) { |
| dev_err(hdev->dev, "I2C transaction length %u, exceeds maximum of %u\n", |
| i2c_len, I2C_MAX_TRANSACTION_LEN); |
| return -EINVAL; |
| } |
| |
| memset(&pkt, 0, sizeof(pkt)); |
| |
| pkt.ctl = cpu_to_le32(CPUCP_PACKET_I2C_WR << |
| CPUCP_PKT_CTL_OPCODE_SHIFT); |
| pkt.i2c_bus = i2c_bus; |
| pkt.i2c_addr = i2c_addr; |
| pkt.i2c_reg = i2c_reg; |
| pkt.i2c_len = i2c_len; |
| pkt.value = cpu_to_le64(val); |
| |
| rc = hdev->asic_funcs->send_cpu_message(hdev, (u32 *) &pkt, sizeof(pkt), 0, NULL); |
| if (rc && rc != -EAGAIN) |
| dev_err(hdev->dev, "Failed to write to I2C, error %d\n", rc); |
| |
| return rc; |
| } |
| |
| static void hl_debugfs_led_set(struct hl_device *hdev, u8 led, u8 state) |
| { |
| struct cpucp_packet pkt; |
| int rc; |
| |
| if (!hl_device_operational(hdev, NULL)) |
| return; |
| |
| memset(&pkt, 0, sizeof(pkt)); |
| |
| pkt.ctl = cpu_to_le32(CPUCP_PACKET_LED_SET << |
| CPUCP_PKT_CTL_OPCODE_SHIFT); |
| pkt.led_index = cpu_to_le32(led); |
| pkt.value = cpu_to_le64(state); |
| |
| rc = hdev->asic_funcs->send_cpu_message(hdev, (u32 *) &pkt, sizeof(pkt), 0, NULL); |
| if (rc && rc != -EAGAIN) |
| dev_err(hdev->dev, "Failed to set LED %d, error %d\n", led, rc); |
| } |
| |
| static int command_buffers_show(struct seq_file *s, void *data) |
| { |
| struct hl_debugfs_entry *entry = s->private; |
| struct hl_dbg_device_entry *dev_entry = entry->dev_entry; |
| struct hl_cb *cb; |
| bool first = true; |
| |
| spin_lock(&dev_entry->cb_spinlock); |
| |
| list_for_each_entry(cb, &dev_entry->cb_list, debugfs_list) { |
| if (first) { |
| first = false; |
| seq_puts(s, "\n"); |
| seq_puts(s, " CB ID CTX ID CB size CB RefCnt mmap? CS counter\n"); |
| seq_puts(s, "---------------------------------------------------------------\n"); |
| } |
| seq_printf(s, |
| " %03llu %d 0x%08x %d %d %d\n", |
| cb->buf->handle, cb->ctx->asid, cb->size, |
| kref_read(&cb->buf->refcount), |
| atomic_read(&cb->buf->mmap), atomic_read(&cb->cs_cnt)); |
| } |
| |
| spin_unlock(&dev_entry->cb_spinlock); |
| |
| if (!first) |
| seq_puts(s, "\n"); |
| |
| return 0; |
| } |
| |
| static int command_submission_show(struct seq_file *s, void *data) |
| { |
| struct hl_debugfs_entry *entry = s->private; |
| struct hl_dbg_device_entry *dev_entry = entry->dev_entry; |
| struct hl_cs *cs; |
| bool first = true; |
| |
| spin_lock(&dev_entry->cs_spinlock); |
| |
| list_for_each_entry(cs, &dev_entry->cs_list, debugfs_list) { |
| if (first) { |
| first = false; |
| seq_puts(s, "\n"); |
| seq_puts(s, " CS ID CS TYPE CTX ASID CS RefCnt Submitted Completed\n"); |
| seq_puts(s, "----------------------------------------------------------------\n"); |
| } |
| seq_printf(s, |
| " %llu %d %d %d %d %d\n", |
| cs->sequence, cs->type, cs->ctx->asid, |
| kref_read(&cs->refcount), |
| cs->submitted, cs->completed); |
| } |
| |
| spin_unlock(&dev_entry->cs_spinlock); |
| |
| if (!first) |
| seq_puts(s, "\n"); |
| |
| return 0; |
| } |
| |
| static int command_submission_jobs_show(struct seq_file *s, void *data) |
| { |
| struct hl_debugfs_entry *entry = s->private; |
| struct hl_dbg_device_entry *dev_entry = entry->dev_entry; |
| struct hl_cs_job *job; |
| bool first = true; |
| |
| spin_lock(&dev_entry->cs_job_spinlock); |
| |
| list_for_each_entry(job, &dev_entry->cs_job_list, debugfs_list) { |
| if (first) { |
| first = false; |
| seq_puts(s, "\n"); |
| seq_puts(s, " JOB ID CS ID CS TYPE CTX ASID JOB RefCnt H/W Queue\n"); |
| seq_puts(s, "---------------------------------------------------------------\n"); |
| } |
| if (job->cs) |
| seq_printf(s, |
| " %02d %llu %d %d %d %d\n", |
| job->id, job->cs->sequence, job->cs->type, |
| job->cs->ctx->asid, kref_read(&job->refcount), |
| job->hw_queue_id); |
| else |
| seq_printf(s, |
| " %02d 0 0 %d %d %d\n", |
| job->id, HL_KERNEL_ASID_ID, |
| kref_read(&job->refcount), job->hw_queue_id); |
| } |
| |
| spin_unlock(&dev_entry->cs_job_spinlock); |
| |
| if (!first) |
| seq_puts(s, "\n"); |
| |
| return 0; |
| } |
| |
| static int userptr_show(struct seq_file *s, void *data) |
| { |
| struct hl_debugfs_entry *entry = s->private; |
| struct hl_dbg_device_entry *dev_entry = entry->dev_entry; |
| struct hl_userptr *userptr; |
| char dma_dir[4][30] = {"DMA_BIDIRECTIONAL", "DMA_TO_DEVICE", |
| "DMA_FROM_DEVICE", "DMA_NONE"}; |
| bool first = true; |
| |
| spin_lock(&dev_entry->userptr_spinlock); |
| |
| list_for_each_entry(userptr, &dev_entry->userptr_list, debugfs_list) { |
| if (first) { |
| first = false; |
| seq_puts(s, "\n"); |
| seq_puts(s, " pid user virtual address size dma dir\n"); |
| seq_puts(s, "----------------------------------------------------------\n"); |
| } |
| seq_printf(s, " %-7d 0x%-14llx %-10llu %-30s\n", |
| userptr->pid, userptr->addr, userptr->size, |
| dma_dir[userptr->dir]); |
| } |
| |
| spin_unlock(&dev_entry->userptr_spinlock); |
| |
| if (!first) |
| seq_puts(s, "\n"); |
| |
| return 0; |
| } |
| |
| static int vm_show(struct seq_file *s, void *data) |
| { |
| struct hl_debugfs_entry *entry = s->private; |
| struct hl_dbg_device_entry *dev_entry = entry->dev_entry; |
| struct hl_vm_hw_block_list_node *lnode; |
| struct hl_ctx *ctx; |
| struct hl_vm *vm; |
| struct hl_vm_hash_node *hnode; |
| struct hl_userptr *userptr; |
| struct hl_vm_phys_pg_pack *phys_pg_pack = NULL; |
| struct hl_va_range *va_range; |
| struct hl_vm_va_block *va_block; |
| enum vm_type *vm_type; |
| bool once = true; |
| u64 j; |
| int i; |
| |
| mutex_lock(&dev_entry->ctx_mem_hash_mutex); |
| |
| list_for_each_entry(ctx, &dev_entry->ctx_mem_hash_list, debugfs_list) { |
| once = false; |
| seq_puts(s, "\n\n----------------------------------------------------"); |
| seq_puts(s, "\n----------------------------------------------------\n\n"); |
| seq_printf(s, "ctx asid: %u\n", ctx->asid); |
| |
| seq_puts(s, "\nmappings:\n\n"); |
| seq_puts(s, " virtual address size handle\n"); |
| seq_puts(s, "----------------------------------------------------\n"); |
| mutex_lock(&ctx->mem_hash_lock); |
| hash_for_each(ctx->mem_hash, i, hnode, node) { |
| vm_type = hnode->ptr; |
| |
| if (*vm_type == VM_TYPE_USERPTR) { |
| userptr = hnode->ptr; |
| seq_printf(s, |
| " 0x%-14llx %-10llu\n", |
| hnode->vaddr, userptr->size); |
| } else { |
| phys_pg_pack = hnode->ptr; |
| seq_printf(s, |
| " 0x%-14llx %-10llu %-4u\n", |
| hnode->vaddr, phys_pg_pack->total_size, |
| phys_pg_pack->handle); |
| } |
| } |
| mutex_unlock(&ctx->mem_hash_lock); |
| |
| if (ctx->asid != HL_KERNEL_ASID_ID && |
| !list_empty(&ctx->hw_block_mem_list)) { |
| seq_puts(s, "\nhw_block mappings:\n\n"); |
| seq_puts(s, |
| " virtual address block size mapped size HW block id\n"); |
| seq_puts(s, |
| "---------------------------------------------------------------\n"); |
| mutex_lock(&ctx->hw_block_list_lock); |
| list_for_each_entry(lnode, &ctx->hw_block_mem_list, node) { |
| seq_printf(s, |
| " 0x%-14lx %-6u %-6u %-9u\n", |
| lnode->vaddr, lnode->block_size, lnode->mapped_size, |
| lnode->id); |
| } |
| mutex_unlock(&ctx->hw_block_list_lock); |
| } |
| |
| vm = &ctx->hdev->vm; |
| spin_lock(&vm->idr_lock); |
| |
| if (!idr_is_empty(&vm->phys_pg_pack_handles)) |
| seq_puts(s, "\n\nallocations:\n"); |
| |
| idr_for_each_entry(&vm->phys_pg_pack_handles, phys_pg_pack, i) { |
| if (phys_pg_pack->asid != ctx->asid) |
| continue; |
| |
| seq_printf(s, "\nhandle: %u\n", phys_pg_pack->handle); |
| seq_printf(s, "page size: %u\n\n", |
| phys_pg_pack->page_size); |
| seq_puts(s, " physical address\n"); |
| seq_puts(s, "---------------------\n"); |
| for (j = 0 ; j < phys_pg_pack->npages ; j++) { |
| seq_printf(s, " 0x%-14llx\n", |
| phys_pg_pack->pages[j]); |
| } |
| } |
| spin_unlock(&vm->idr_lock); |
| |
| } |
| |
| mutex_unlock(&dev_entry->ctx_mem_hash_mutex); |
| |
| ctx = hl_get_compute_ctx(dev_entry->hdev); |
| if (ctx) { |
| seq_puts(s, "\nVA ranges:\n\n"); |
| for (i = HL_VA_RANGE_TYPE_HOST ; i < HL_VA_RANGE_TYPE_MAX ; ++i) { |
| va_range = ctx->va_range[i]; |
| seq_printf(s, " va_range %d\n", i); |
| seq_puts(s, "---------------------\n"); |
| mutex_lock(&va_range->lock); |
| list_for_each_entry(va_block, &va_range->list, node) { |
| seq_printf(s, "%#16llx - %#16llx (%#llx)\n", |
| va_block->start, va_block->end, |
| va_block->size); |
| } |
| mutex_unlock(&va_range->lock); |
| seq_puts(s, "\n"); |
| } |
| hl_ctx_put(ctx); |
| } |
| |
| if (!once) |
| seq_puts(s, "\n"); |
| |
| return 0; |
| } |
| |
| static int userptr_lookup_show(struct seq_file *s, void *data) |
| { |
| struct hl_debugfs_entry *entry = s->private; |
| struct hl_dbg_device_entry *dev_entry = entry->dev_entry; |
| struct scatterlist *sg; |
| struct hl_userptr *userptr; |
| bool first = true; |
| u64 total_npages, npages, sg_start, sg_end; |
| dma_addr_t dma_addr; |
| int i; |
| |
| spin_lock(&dev_entry->userptr_spinlock); |
| |
| list_for_each_entry(userptr, &dev_entry->userptr_list, debugfs_list) { |
| if (dev_entry->userptr_lookup >= userptr->addr && |
| dev_entry->userptr_lookup < userptr->addr + userptr->size) { |
| total_npages = 0; |
| for_each_sgtable_dma_sg(userptr->sgt, sg, i) { |
| npages = hl_get_sg_info(sg, &dma_addr); |
| sg_start = userptr->addr + |
| total_npages * PAGE_SIZE; |
| sg_end = userptr->addr + |
| (total_npages + npages) * PAGE_SIZE; |
| |
| if (dev_entry->userptr_lookup >= sg_start && |
| dev_entry->userptr_lookup < sg_end) { |
| dma_addr += (dev_entry->userptr_lookup - |
| sg_start); |
| if (first) { |
| first = false; |
| seq_puts(s, "\n"); |
| seq_puts(s, " user virtual address dma address pid region start region size\n"); |
| seq_puts(s, "---------------------------------------------------------------------------------------\n"); |
| } |
| seq_printf(s, " 0x%-18llx 0x%-16llx %-8u 0x%-16llx %-12llu\n", |
| dev_entry->userptr_lookup, |
| (u64)dma_addr, userptr->pid, |
| userptr->addr, userptr->size); |
| } |
| total_npages += npages; |
| } |
| } |
| } |
| |
| spin_unlock(&dev_entry->userptr_spinlock); |
| |
| if (!first) |
| seq_puts(s, "\n"); |
| |
| return 0; |
| } |
| |
| static ssize_t userptr_lookup_write(struct file *file, const char __user *buf, |
| size_t count, loff_t *f_pos) |
| { |
| struct seq_file *s = file->private_data; |
| struct hl_debugfs_entry *entry = s->private; |
| struct hl_dbg_device_entry *dev_entry = entry->dev_entry; |
| ssize_t rc; |
| u64 value; |
| |
| rc = kstrtoull_from_user(buf, count, 16, &value); |
| if (rc) |
| return rc; |
| |
| dev_entry->userptr_lookup = value; |
| |
| return count; |
| } |
| |
| static int mmu_show(struct seq_file *s, void *data) |
| { |
| struct hl_debugfs_entry *entry = s->private; |
| struct hl_dbg_device_entry *dev_entry = entry->dev_entry; |
| struct hl_device *hdev = dev_entry->hdev; |
| struct hl_ctx *ctx; |
| struct hl_mmu_hop_info hops_info = {0}; |
| u64 virt_addr = dev_entry->mmu_addr, phys_addr; |
| int i; |
| |
| if (dev_entry->mmu_asid == HL_KERNEL_ASID_ID) |
| ctx = hdev->kernel_ctx; |
| else |
| ctx = hl_get_compute_ctx(hdev); |
| |
| if (!ctx) { |
| dev_err(hdev->dev, "no ctx available\n"); |
| return 0; |
| } |
| |
| if (hl_mmu_get_tlb_info(ctx, virt_addr, &hops_info)) { |
| dev_err(hdev->dev, "virt addr 0x%llx is not mapped to phys addr\n", |
| virt_addr); |
| goto put_ctx; |
| } |
| |
| hl_mmu_va_to_pa(ctx, virt_addr, &phys_addr); |
| |
| if (hops_info.scrambled_vaddr && |
| (dev_entry->mmu_addr != hops_info.scrambled_vaddr)) |
| seq_printf(s, |
| "asid: %u, virt_addr: 0x%llx, scrambled virt_addr: 0x%llx,\nphys_addr: 0x%llx, scrambled_phys_addr: 0x%llx\n", |
| dev_entry->mmu_asid, dev_entry->mmu_addr, |
| hops_info.scrambled_vaddr, |
| hops_info.unscrambled_paddr, phys_addr); |
| else |
| seq_printf(s, |
| "asid: %u, virt_addr: 0x%llx, phys_addr: 0x%llx\n", |
| dev_entry->mmu_asid, dev_entry->mmu_addr, phys_addr); |
| |
| for (i = 0 ; i < hops_info.used_hops ; i++) { |
| seq_printf(s, "hop%d_addr: 0x%llx\n", |
| i, hops_info.hop_info[i].hop_addr); |
| seq_printf(s, "hop%d_pte_addr: 0x%llx\n", |
| i, hops_info.hop_info[i].hop_pte_addr); |
| seq_printf(s, "hop%d_pte: 0x%llx\n", |
| i, hops_info.hop_info[i].hop_pte_val); |
| } |
| |
| put_ctx: |
| if (dev_entry->mmu_asid != HL_KERNEL_ASID_ID) |
| hl_ctx_put(ctx); |
| |
| return 0; |
| } |
| |
| static ssize_t mmu_asid_va_write(struct file *file, const char __user *buf, |
| size_t count, loff_t *f_pos) |
| { |
| struct seq_file *s = file->private_data; |
| struct hl_debugfs_entry *entry = s->private; |
| struct hl_dbg_device_entry *dev_entry = entry->dev_entry; |
| struct hl_device *hdev = dev_entry->hdev; |
| char kbuf[MMU_KBUF_SIZE] = {0}; |
| char *c; |
| ssize_t rc; |
| |
| if (count > sizeof(kbuf) - 1) |
| goto err; |
| if (copy_from_user(kbuf, buf, count)) |
| goto err; |
| kbuf[count] = 0; |
| |
| c = strchr(kbuf, ' '); |
| if (!c) |
| goto err; |
| *c = '\0'; |
| |
| rc = kstrtouint(kbuf, 10, &dev_entry->mmu_asid); |
| if (rc) |
| goto err; |
| |
| if (strncmp(c+1, "0x", 2)) |
| goto err; |
| rc = kstrtoull(c+3, 16, &dev_entry->mmu_addr); |
| if (rc) |
| goto err; |
| |
| return count; |
| |
| err: |
| dev_err(hdev->dev, "usage: echo <asid> <0xaddr> > mmu\n"); |
| |
| return -EINVAL; |
| } |
| |
| static int mmu_ack_error(struct seq_file *s, void *data) |
| { |
| struct hl_debugfs_entry *entry = s->private; |
| struct hl_dbg_device_entry *dev_entry = entry->dev_entry; |
| struct hl_device *hdev = dev_entry->hdev; |
| int rc; |
| |
| if (!dev_entry->mmu_cap_mask) { |
| dev_err(hdev->dev, "mmu_cap_mask is not set\n"); |
| goto err; |
| } |
| |
| rc = hdev->asic_funcs->ack_mmu_errors(hdev, dev_entry->mmu_cap_mask); |
| if (rc) |
| goto err; |
| |
| return 0; |
| err: |
| return -EINVAL; |
| } |
| |
| static ssize_t mmu_ack_error_value_write(struct file *file, |
| const char __user *buf, |
| size_t count, loff_t *f_pos) |
| { |
| struct seq_file *s = file->private_data; |
| struct hl_debugfs_entry *entry = s->private; |
| struct hl_dbg_device_entry *dev_entry = entry->dev_entry; |
| struct hl_device *hdev = dev_entry->hdev; |
| char kbuf[MMU_KBUF_SIZE] = {0}; |
| ssize_t rc; |
| |
| if (count > sizeof(kbuf) - 1) |
| goto err; |
| |
| if (copy_from_user(kbuf, buf, count)) |
| goto err; |
| |
| kbuf[count] = 0; |
| |
| if (strncmp(kbuf, "0x", 2)) |
| goto err; |
| |
| rc = kstrtoull(kbuf, 16, &dev_entry->mmu_cap_mask); |
| if (rc) |
| goto err; |
| |
| return count; |
| err: |
| dev_err(hdev->dev, "usage: echo <0xmmu_cap_mask > > mmu_error\n"); |
| |
| return -EINVAL; |
| } |
| |
| static int engines_show(struct seq_file *s, void *data) |
| { |
| struct hl_debugfs_entry *entry = s->private; |
| struct hl_dbg_device_entry *dev_entry = entry->dev_entry; |
| struct hl_device *hdev = dev_entry->hdev; |
| struct engines_data eng_data; |
| |
| if (hdev->reset_info.in_reset) { |
| dev_warn_ratelimited(hdev->dev, |
| "Can't check device idle during reset\n"); |
| return 0; |
| } |
| |
| eng_data.actual_size = 0; |
| eng_data.allocated_buf_size = HL_ENGINES_DATA_MAX_SIZE; |
| eng_data.buf = vmalloc(eng_data.allocated_buf_size); |
| if (!eng_data.buf) |
| return -ENOMEM; |
| |
| hdev->asic_funcs->is_device_idle(hdev, NULL, 0, &eng_data); |
| |
| if (eng_data.actual_size > eng_data.allocated_buf_size) { |
| dev_err(hdev->dev, |
| "Engines data size (%d Bytes) is bigger than allocated size (%u Bytes)\n", |
| eng_data.actual_size, eng_data.allocated_buf_size); |
| vfree(eng_data.buf); |
| return -ENOMEM; |
| } |
| |
| seq_write(s, eng_data.buf, eng_data.actual_size); |
| |
| vfree(eng_data.buf); |
| |
| return 0; |
| } |
| |
| static ssize_t hl_memory_scrub(struct file *f, const char __user *buf, |
| size_t count, loff_t *ppos) |
| { |
| struct hl_dbg_device_entry *entry = file_inode(f)->i_private; |
| struct hl_device *hdev = entry->hdev; |
| u64 val = hdev->memory_scrub_val; |
| int rc; |
| |
| if (!hl_device_operational(hdev, NULL)) { |
| dev_warn_ratelimited(hdev->dev, "Can't scrub memory, device is not operational\n"); |
| return -EIO; |
| } |
| |
| mutex_lock(&hdev->fpriv_list_lock); |
| if (hdev->is_compute_ctx_active) { |
| mutex_unlock(&hdev->fpriv_list_lock); |
| dev_err(hdev->dev, "can't scrub dram, context exist\n"); |
| return -EBUSY; |
| } |
| hdev->is_in_dram_scrub = true; |
| mutex_unlock(&hdev->fpriv_list_lock); |
| |
| rc = hdev->asic_funcs->scrub_device_dram(hdev, val); |
| |
| mutex_lock(&hdev->fpriv_list_lock); |
| hdev->is_in_dram_scrub = false; |
| mutex_unlock(&hdev->fpriv_list_lock); |
| |
| if (rc) |
| return rc; |
| return count; |
| } |
| |
| static bool hl_is_device_va(struct hl_device *hdev, u64 addr) |
| { |
| struct asic_fixed_properties *prop = &hdev->asic_prop; |
| |
| if (prop->dram_supports_virtual_memory && |
| (addr >= prop->dmmu.start_addr && addr < prop->dmmu.end_addr)) |
| return true; |
| |
| if (addr >= prop->pmmu.start_addr && |
| addr < prop->pmmu.end_addr) |
| return true; |
| |
| if (addr >= prop->pmmu_huge.start_addr && |
| addr < prop->pmmu_huge.end_addr) |
| return true; |
| |
| return false; |
| } |
| |
| static bool hl_is_device_internal_memory_va(struct hl_device *hdev, u64 addr, |
| u32 size) |
| { |
| struct asic_fixed_properties *prop = &hdev->asic_prop; |
| u64 dram_start_addr, dram_end_addr; |
| |
| if (prop->dram_supports_virtual_memory) { |
| dram_start_addr = prop->dmmu.start_addr; |
| dram_end_addr = prop->dmmu.end_addr; |
| } else { |
| dram_start_addr = prop->dram_base_address; |
| dram_end_addr = prop->dram_end_address; |
| } |
| |
| if (hl_mem_area_inside_range(addr, size, dram_start_addr, |
| dram_end_addr)) |
| return true; |
| |
| if (hl_mem_area_inside_range(addr, size, prop->sram_base_address, |
| prop->sram_end_address)) |
| return true; |
| |
| return false; |
| } |
| |
| static int device_va_to_pa(struct hl_device *hdev, u64 virt_addr, u32 size, |
| u64 *phys_addr) |
| { |
| struct hl_vm_phys_pg_pack *phys_pg_pack; |
| struct hl_ctx *ctx; |
| struct hl_vm_hash_node *hnode; |
| u64 end_address, range_size; |
| struct hl_userptr *userptr; |
| enum vm_type *vm_type; |
| bool valid = false; |
| int i, rc = 0; |
| |
| ctx = hl_get_compute_ctx(hdev); |
| |
| if (!ctx) { |
| dev_err(hdev->dev, "no ctx available\n"); |
| return -EINVAL; |
| } |
| |
| /* Verify address is mapped */ |
| mutex_lock(&ctx->mem_hash_lock); |
| hash_for_each(ctx->mem_hash, i, hnode, node) { |
| vm_type = hnode->ptr; |
| |
| if (*vm_type == VM_TYPE_USERPTR) { |
| userptr = hnode->ptr; |
| range_size = userptr->size; |
| } else { |
| phys_pg_pack = hnode->ptr; |
| range_size = phys_pg_pack->total_size; |
| } |
| |
| end_address = virt_addr + size; |
| if ((virt_addr >= hnode->vaddr) && |
| (end_address <= hnode->vaddr + range_size)) { |
| valid = true; |
| break; |
| } |
| } |
| mutex_unlock(&ctx->mem_hash_lock); |
| |
| if (!valid) { |
| dev_err(hdev->dev, |
| "virt addr 0x%llx is not mapped\n", |
| virt_addr); |
| rc = -EINVAL; |
| goto put_ctx; |
| } |
| |
| rc = hl_mmu_va_to_pa(ctx, virt_addr, phys_addr); |
| if (rc) { |
| dev_err(hdev->dev, |
| "virt addr 0x%llx is not mapped to phys addr\n", |
| virt_addr); |
| rc = -EINVAL; |
| } |
| |
| put_ctx: |
| hl_ctx_put(ctx); |
| |
| return rc; |
| } |
| |
| static int hl_access_dev_mem_by_region(struct hl_device *hdev, u64 addr, |
| u64 *val, enum debugfs_access_type acc_type, bool *found) |
| { |
| size_t acc_size = (acc_type == DEBUGFS_READ64 || acc_type == DEBUGFS_WRITE64) ? |
| sizeof(u64) : sizeof(u32); |
| struct pci_mem_region *mem_reg; |
| int i; |
| |
| for (i = 0; i < PCI_REGION_NUMBER; i++) { |
| mem_reg = &hdev->pci_mem_region[i]; |
| if (!mem_reg->used) |
| continue; |
| if (addr >= mem_reg->region_base && |
| addr <= mem_reg->region_base + mem_reg->region_size - acc_size) { |
| *found = true; |
| return hdev->asic_funcs->access_dev_mem(hdev, i, addr, val, acc_type); |
| } |
| } |
| return 0; |
| } |
| |
| static void hl_access_host_mem(struct hl_device *hdev, u64 addr, u64 *val, |
| enum debugfs_access_type acc_type) |
| { |
| struct asic_fixed_properties *prop = &hdev->asic_prop; |
| u64 offset = prop->device_dma_offset_for_host_access; |
| |
| switch (acc_type) { |
| case DEBUGFS_READ32: |
| *val = *(u32 *) phys_to_virt(addr - offset); |
| break; |
| case DEBUGFS_WRITE32: |
| *(u32 *) phys_to_virt(addr - offset) = *val; |
| break; |
| case DEBUGFS_READ64: |
| *val = *(u64 *) phys_to_virt(addr - offset); |
| break; |
| case DEBUGFS_WRITE64: |
| *(u64 *) phys_to_virt(addr - offset) = *val; |
| break; |
| default: |
| dev_err(hdev->dev, "hostmem access-type %d id not supported\n", acc_type); |
| break; |
| } |
| } |
| |
| static int hl_access_mem(struct hl_device *hdev, u64 addr, u64 *val, |
| enum debugfs_access_type acc_type) |
| { |
| size_t acc_size = (acc_type == DEBUGFS_READ64 || acc_type == DEBUGFS_WRITE64) ? |
| sizeof(u64) : sizeof(u32); |
| u64 host_start = hdev->asic_prop.host_base_address; |
| u64 host_end = hdev->asic_prop.host_end_address; |
| bool user_address, found = false; |
| int rc; |
| |
| user_address = hl_is_device_va(hdev, addr); |
| if (user_address) { |
| rc = device_va_to_pa(hdev, addr, acc_size, &addr); |
| if (rc) |
| return rc; |
| } |
| |
| rc = hl_access_dev_mem_by_region(hdev, addr, val, acc_type, &found); |
| if (rc) { |
| dev_err(hdev->dev, |
| "Failed reading addr %#llx from dev mem (%d)\n", |
| addr, rc); |
| return rc; |
| } |
| |
| if (found) |
| return 0; |
| |
| if (!user_address || device_iommu_mapped(&hdev->pdev->dev)) { |
| rc = -EINVAL; |
| goto err; |
| } |
| |
| if (addr >= host_start && addr <= host_end - acc_size) { |
| hl_access_host_mem(hdev, addr, val, acc_type); |
| } else { |
| rc = -EINVAL; |
| goto err; |
| } |
| |
| return 0; |
| err: |
| dev_err(hdev->dev, "invalid addr %#llx\n", addr); |
| return rc; |
| } |
| |
| static ssize_t hl_data_read32(struct file *f, char __user *buf, |
| size_t count, loff_t *ppos) |
| { |
| struct hl_dbg_device_entry *entry = file_inode(f)->i_private; |
| struct hl_device *hdev = entry->hdev; |
| u64 value64, addr = entry->addr; |
| char tmp_buf[32]; |
| ssize_t rc; |
| u32 val; |
| |
| if (hdev->reset_info.in_reset) { |
| dev_warn_ratelimited(hdev->dev, "Can't read during reset\n"); |
| return 0; |
| } |
| |
| if (*ppos) |
| return 0; |
| |
| rc = hl_access_mem(hdev, addr, &value64, DEBUGFS_READ32); |
| if (rc) |
| return rc; |
| |
| val = value64; /* downcast back to 32 */ |
| |
| sprintf(tmp_buf, "0x%08x\n", val); |
| return simple_read_from_buffer(buf, count, ppos, tmp_buf, |
| strlen(tmp_buf)); |
| } |
| |
| static ssize_t hl_data_write32(struct file *f, const char __user *buf, |
| size_t count, loff_t *ppos) |
| { |
| struct hl_dbg_device_entry *entry = file_inode(f)->i_private; |
| struct hl_device *hdev = entry->hdev; |
| u64 value64, addr = entry->addr; |
| u32 value; |
| ssize_t rc; |
| |
| if (hdev->reset_info.in_reset) { |
| dev_warn_ratelimited(hdev->dev, "Can't write during reset\n"); |
| return 0; |
| } |
| |
| rc = kstrtouint_from_user(buf, count, 16, &value); |
| if (rc) |
| return rc; |
| |
| value64 = value; |
| rc = hl_access_mem(hdev, addr, &value64, DEBUGFS_WRITE32); |
| if (rc) |
| return rc; |
| |
| return count; |
| } |
| |
| static ssize_t hl_data_read64(struct file *f, char __user *buf, |
| size_t count, loff_t *ppos) |
| { |
| struct hl_dbg_device_entry *entry = file_inode(f)->i_private; |
| struct hl_device *hdev = entry->hdev; |
| u64 addr = entry->addr; |
| char tmp_buf[32]; |
| ssize_t rc; |
| u64 val; |
| |
| if (hdev->reset_info.in_reset) { |
| dev_warn_ratelimited(hdev->dev, "Can't read during reset\n"); |
| return 0; |
| } |
| |
| if (*ppos) |
| return 0; |
| |
| rc = hl_access_mem(hdev, addr, &val, DEBUGFS_READ64); |
| if (rc) |
| return rc; |
| |
| sprintf(tmp_buf, "0x%016llx\n", val); |
| return simple_read_from_buffer(buf, count, ppos, tmp_buf, |
| strlen(tmp_buf)); |
| } |
| |
| static ssize_t hl_data_write64(struct file *f, const char __user *buf, |
| size_t count, loff_t *ppos) |
| { |
| struct hl_dbg_device_entry *entry = file_inode(f)->i_private; |
| struct hl_device *hdev = entry->hdev; |
| u64 addr = entry->addr; |
| u64 value; |
| ssize_t rc; |
| |
| if (hdev->reset_info.in_reset) { |
| dev_warn_ratelimited(hdev->dev, "Can't write during reset\n"); |
| return 0; |
| } |
| |
| rc = kstrtoull_from_user(buf, count, 16, &value); |
| if (rc) |
| return rc; |
| |
| rc = hl_access_mem(hdev, addr, &value, DEBUGFS_WRITE64); |
| if (rc) |
| return rc; |
| |
| return count; |
| } |
| |
| static ssize_t hl_dma_size_write(struct file *f, const char __user *buf, |
| size_t count, loff_t *ppos) |
| { |
| struct hl_dbg_device_entry *entry = file_inode(f)->i_private; |
| struct hl_device *hdev = entry->hdev; |
| u64 addr = entry->addr; |
| ssize_t rc; |
| u32 size; |
| |
| if (hdev->reset_info.in_reset) { |
| dev_warn_ratelimited(hdev->dev, "Can't DMA during reset\n"); |
| return 0; |
| } |
| rc = kstrtouint_from_user(buf, count, 16, &size); |
| if (rc) |
| return rc; |
| |
| if (!size) { |
| dev_err(hdev->dev, "DMA read failed. size can't be 0\n"); |
| return -EINVAL; |
| } |
| |
| if (size > SZ_128M) { |
| dev_err(hdev->dev, |
| "DMA read failed. size can't be larger than 128MB\n"); |
| return -EINVAL; |
| } |
| |
| if (!hl_is_device_internal_memory_va(hdev, addr, size)) { |
| dev_err(hdev->dev, |
| "DMA read failed. Invalid 0x%010llx + 0x%08x\n", |
| addr, size); |
| return -EINVAL; |
| } |
| |
| /* Free the previous allocation, if there was any */ |
| entry->data_dma_blob_desc.size = 0; |
| vfree(entry->data_dma_blob_desc.data); |
| |
| entry->data_dma_blob_desc.data = vmalloc(size); |
| if (!entry->data_dma_blob_desc.data) |
| return -ENOMEM; |
| |
| rc = hdev->asic_funcs->debugfs_read_dma(hdev, addr, size, |
| entry->data_dma_blob_desc.data); |
| if (rc) { |
| dev_err(hdev->dev, "Failed to DMA from 0x%010llx\n", addr); |
| vfree(entry->data_dma_blob_desc.data); |
| entry->data_dma_blob_desc.data = NULL; |
| return -EIO; |
| } |
| |
| entry->data_dma_blob_desc.size = size; |
| |
| return count; |
| } |
| |
| static ssize_t hl_monitor_dump_trigger(struct file *f, const char __user *buf, |
| size_t count, loff_t *ppos) |
| { |
| struct hl_dbg_device_entry *entry = file_inode(f)->i_private; |
| struct hl_device *hdev = entry->hdev; |
| u32 size, trig; |
| ssize_t rc; |
| |
| if (hdev->reset_info.in_reset) { |
| dev_warn_ratelimited(hdev->dev, "Can't dump monitors during reset\n"); |
| return 0; |
| } |
| rc = kstrtouint_from_user(buf, count, 10, &trig); |
| if (rc) |
| return rc; |
| |
| if (trig != 1) { |
| dev_err(hdev->dev, "Must write 1 to trigger monitor dump\n"); |
| return -EINVAL; |
| } |
| |
| size = sizeof(struct cpucp_monitor_dump); |
| |
| /* Free the previous allocation, if there was any */ |
| entry->mon_dump_blob_desc.size = 0; |
| vfree(entry->mon_dump_blob_desc.data); |
| |
| entry->mon_dump_blob_desc.data = vmalloc(size); |
| if (!entry->mon_dump_blob_desc.data) |
| return -ENOMEM; |
| |
| rc = hdev->asic_funcs->get_monitor_dump(hdev, entry->mon_dump_blob_desc.data); |
| if (rc) { |
| dev_err(hdev->dev, "Failed to dump monitors\n"); |
| vfree(entry->mon_dump_blob_desc.data); |
| entry->mon_dump_blob_desc.data = NULL; |
| return -EIO; |
| } |
| |
| entry->mon_dump_blob_desc.size = size; |
| |
| return count; |
| } |
| |
| static ssize_t hl_get_power_state(struct file *f, char __user *buf, |
| size_t count, loff_t *ppos) |
| { |
| struct hl_dbg_device_entry *entry = file_inode(f)->i_private; |
| struct hl_device *hdev = entry->hdev; |
| char tmp_buf[200]; |
| int i; |
| |
| if (*ppos) |
| return 0; |
| |
| if (hdev->pdev->current_state == PCI_D0) |
| i = 1; |
| else if (hdev->pdev->current_state == PCI_D3hot) |
| i = 2; |
| else |
| i = 3; |
| |
| sprintf(tmp_buf, |
| "current power state: %d\n1 - D0\n2 - D3hot\n3 - Unknown\n", i); |
| return simple_read_from_buffer(buf, count, ppos, tmp_buf, |
| strlen(tmp_buf)); |
| } |
| |
| static ssize_t hl_set_power_state(struct file *f, const char __user *buf, |
| size_t count, loff_t *ppos) |
| { |
| struct hl_dbg_device_entry *entry = file_inode(f)->i_private; |
| struct hl_device *hdev = entry->hdev; |
| u32 value; |
| ssize_t rc; |
| |
| rc = kstrtouint_from_user(buf, count, 10, &value); |
| if (rc) |
| return rc; |
| |
| if (value == 1) { |
| pci_set_power_state(hdev->pdev, PCI_D0); |
| pci_restore_state(hdev->pdev); |
| rc = pci_enable_device(hdev->pdev); |
| if (rc < 0) |
| return rc; |
| } else if (value == 2) { |
| pci_save_state(hdev->pdev); |
| pci_disable_device(hdev->pdev); |
| pci_set_power_state(hdev->pdev, PCI_D3hot); |
| } else { |
| dev_dbg(hdev->dev, "invalid power state value %u\n", value); |
| return -EINVAL; |
| } |
| |
| return count; |
| } |
| |
| static ssize_t hl_i2c_data_read(struct file *f, char __user *buf, |
| size_t count, loff_t *ppos) |
| { |
| struct hl_dbg_device_entry *entry = file_inode(f)->i_private; |
| struct hl_device *hdev = entry->hdev; |
| char tmp_buf[32]; |
| u64 val; |
| ssize_t rc; |
| |
| if (*ppos) |
| return 0; |
| |
| rc = hl_debugfs_i2c_read(hdev, entry->i2c_bus, entry->i2c_addr, |
| entry->i2c_reg, entry->i2c_len, &val); |
| if (rc) { |
| dev_err(hdev->dev, |
| "Failed to read from I2C bus %d, addr %d, reg %d, len %d\n", |
| entry->i2c_bus, entry->i2c_addr, entry->i2c_reg, entry->i2c_len); |
| return rc; |
| } |
| |
| sprintf(tmp_buf, "%#02llx\n", val); |
| rc = simple_read_from_buffer(buf, count, ppos, tmp_buf, |
| strlen(tmp_buf)); |
| |
| return rc; |
| } |
| |
| static ssize_t hl_i2c_data_write(struct file *f, const char __user *buf, |
| size_t count, loff_t *ppos) |
| { |
| struct hl_dbg_device_entry *entry = file_inode(f)->i_private; |
| struct hl_device *hdev = entry->hdev; |
| u64 value; |
| ssize_t rc; |
| |
| rc = kstrtou64_from_user(buf, count, 16, &value); |
| if (rc) |
| return rc; |
| |
| rc = hl_debugfs_i2c_write(hdev, entry->i2c_bus, entry->i2c_addr, |
| entry->i2c_reg, entry->i2c_len, value); |
| if (rc) { |
| dev_err(hdev->dev, |
| "Failed to write %#02llx to I2C bus %d, addr %d, reg %d, len %d\n", |
| value, entry->i2c_bus, entry->i2c_addr, entry->i2c_reg, entry->i2c_len); |
| return rc; |
| } |
| |
| return count; |
| } |
| |
| static ssize_t hl_led0_write(struct file *f, const char __user *buf, |
| size_t count, loff_t *ppos) |
| { |
| struct hl_dbg_device_entry *entry = file_inode(f)->i_private; |
| struct hl_device *hdev = entry->hdev; |
| u32 value; |
| ssize_t rc; |
| |
| rc = kstrtouint_from_user(buf, count, 10, &value); |
| if (rc) |
| return rc; |
| |
| value = value ? 1 : 0; |
| |
| hl_debugfs_led_set(hdev, 0, value); |
| |
| return count; |
| } |
| |
| static ssize_t hl_led1_write(struct file *f, const char __user *buf, |
| size_t count, loff_t *ppos) |
| { |
| struct hl_dbg_device_entry *entry = file_inode(f)->i_private; |
| struct hl_device *hdev = entry->hdev; |
| u32 value; |
| ssize_t rc; |
| |
| rc = kstrtouint_from_user(buf, count, 10, &value); |
| if (rc) |
| return rc; |
| |
| value = value ? 1 : 0; |
| |
| hl_debugfs_led_set(hdev, 1, value); |
| |
| return count; |
| } |
| |
| static ssize_t hl_led2_write(struct file *f, const char __user *buf, |
| size_t count, loff_t *ppos) |
| { |
| struct hl_dbg_device_entry *entry = file_inode(f)->i_private; |
| struct hl_device *hdev = entry->hdev; |
| u32 value; |
| ssize_t rc; |
| |
| rc = kstrtouint_from_user(buf, count, 10, &value); |
| if (rc) |
| return rc; |
| |
| value = value ? 1 : 0; |
| |
| hl_debugfs_led_set(hdev, 2, value); |
| |
| return count; |
| } |
| |
| static ssize_t hl_device_read(struct file *f, char __user *buf, |
| size_t count, loff_t *ppos) |
| { |
| static const char *help = |
| "Valid values: disable, enable, suspend, resume, cpu_timeout\n"; |
| return simple_read_from_buffer(buf, count, ppos, help, strlen(help)); |
| } |
| |
| static ssize_t hl_device_write(struct file *f, const char __user *buf, |
| size_t count, loff_t *ppos) |
| { |
| struct hl_dbg_device_entry *entry = file_inode(f)->i_private; |
| struct hl_device *hdev = entry->hdev; |
| char data[30] = {0}; |
| |
| /* don't allow partial writes */ |
| if (*ppos != 0) |
| return 0; |
| |
| simple_write_to_buffer(data, 29, ppos, buf, count); |
| |
| if (strncmp("disable", data, strlen("disable")) == 0) { |
| hdev->disabled = true; |
| } else if (strncmp("enable", data, strlen("enable")) == 0) { |
| hdev->disabled = false; |
| } else if (strncmp("suspend", data, strlen("suspend")) == 0) { |
| hdev->asic_funcs->suspend(hdev); |
| } else if (strncmp("resume", data, strlen("resume")) == 0) { |
| hdev->asic_funcs->resume(hdev); |
| } else if (strncmp("cpu_timeout", data, strlen("cpu_timeout")) == 0) { |
| hdev->device_cpu_disabled = true; |
| } else { |
| dev_err(hdev->dev, |
| "Valid values: disable, enable, suspend, resume, cpu_timeout\n"); |
| count = -EINVAL; |
| } |
| |
| return count; |
| } |
| |
| static ssize_t hl_clk_gate_read(struct file *f, char __user *buf, |
| size_t count, loff_t *ppos) |
| { |
| return 0; |
| } |
| |
| static ssize_t hl_clk_gate_write(struct file *f, const char __user *buf, |
| size_t count, loff_t *ppos) |
| { |
| return count; |
| } |
| |
| static ssize_t hl_stop_on_err_read(struct file *f, char __user *buf, |
| size_t count, loff_t *ppos) |
| { |
| struct hl_dbg_device_entry *entry = file_inode(f)->i_private; |
| struct hl_device *hdev = entry->hdev; |
| char tmp_buf[200]; |
| ssize_t rc; |
| |
| if (!hdev->asic_prop.configurable_stop_on_err) |
| return -EOPNOTSUPP; |
| |
| if (*ppos) |
| return 0; |
| |
| sprintf(tmp_buf, "%d\n", hdev->stop_on_err); |
| rc = simple_read_from_buffer(buf, strlen(tmp_buf) + 1, ppos, tmp_buf, |
| strlen(tmp_buf) + 1); |
| |
| return rc; |
| } |
| |
| static ssize_t hl_stop_on_err_write(struct file *f, const char __user *buf, |
| size_t count, loff_t *ppos) |
| { |
| struct hl_dbg_device_entry *entry = file_inode(f)->i_private; |
| struct hl_device *hdev = entry->hdev; |
| u32 value; |
| ssize_t rc; |
| |
| if (!hdev->asic_prop.configurable_stop_on_err) |
| return -EOPNOTSUPP; |
| |
| if (hdev->reset_info.in_reset) { |
| dev_warn_ratelimited(hdev->dev, |
| "Can't change stop on error during reset\n"); |
| return 0; |
| } |
| |
| rc = kstrtouint_from_user(buf, count, 10, &value); |
| if (rc) |
| return rc; |
| |
| hdev->stop_on_err = value ? 1 : 0; |
| |
| hl_device_reset(hdev, 0); |
| |
| return count; |
| } |
| |
| static ssize_t hl_security_violations_read(struct file *f, char __user *buf, |
| size_t count, loff_t *ppos) |
| { |
| struct hl_dbg_device_entry *entry = file_inode(f)->i_private; |
| struct hl_device *hdev = entry->hdev; |
| |
| hdev->asic_funcs->ack_protection_bits_errors(hdev); |
| |
| return 0; |
| } |
| |
| static ssize_t hl_state_dump_read(struct file *f, char __user *buf, |
| size_t count, loff_t *ppos) |
| { |
| struct hl_dbg_device_entry *entry = file_inode(f)->i_private; |
| ssize_t rc; |
| |
| down_read(&entry->state_dump_sem); |
| if (!entry->state_dump[entry->state_dump_head]) |
| rc = 0; |
| else |
| rc = simple_read_from_buffer( |
| buf, count, ppos, |
| entry->state_dump[entry->state_dump_head], |
| strlen(entry->state_dump[entry->state_dump_head])); |
| up_read(&entry->state_dump_sem); |
| |
| return rc; |
| } |
| |
| static ssize_t hl_state_dump_write(struct file *f, const char __user *buf, |
| size_t count, loff_t *ppos) |
| { |
| struct hl_dbg_device_entry *entry = file_inode(f)->i_private; |
| struct hl_device *hdev = entry->hdev; |
| ssize_t rc; |
| u32 size; |
| int i; |
| |
| rc = kstrtouint_from_user(buf, count, 10, &size); |
| if (rc) |
| return rc; |
| |
| if (size <= 0 || size >= ARRAY_SIZE(entry->state_dump)) { |
| dev_err(hdev->dev, "Invalid number of dumps to skip\n"); |
| return -EINVAL; |
| } |
| |
| if (entry->state_dump[entry->state_dump_head]) { |
| down_write(&entry->state_dump_sem); |
| for (i = 0; i < size; ++i) { |
| vfree(entry->state_dump[entry->state_dump_head]); |
| entry->state_dump[entry->state_dump_head] = NULL; |
| if (entry->state_dump_head > 0) |
| entry->state_dump_head--; |
| else |
| entry->state_dump_head = |
| ARRAY_SIZE(entry->state_dump) - 1; |
| } |
| up_write(&entry->state_dump_sem); |
| } |
| |
| return count; |
| } |
| |
| static ssize_t hl_timeout_locked_read(struct file *f, char __user *buf, |
| size_t count, loff_t *ppos) |
| { |
| struct hl_dbg_device_entry *entry = file_inode(f)->i_private; |
| struct hl_device *hdev = entry->hdev; |
| char tmp_buf[200]; |
| ssize_t rc; |
| |
| if (*ppos) |
| return 0; |
| |
| sprintf(tmp_buf, "%d\n", |
| jiffies_to_msecs(hdev->timeout_jiffies) / 1000); |
| rc = simple_read_from_buffer(buf, strlen(tmp_buf) + 1, ppos, tmp_buf, |
| strlen(tmp_buf) + 1); |
| |
| return rc; |
| } |
| |
| static ssize_t hl_timeout_locked_write(struct file *f, const char __user *buf, |
| size_t count, loff_t *ppos) |
| { |
| struct hl_dbg_device_entry *entry = file_inode(f)->i_private; |
| struct hl_device *hdev = entry->hdev; |
| u32 value; |
| ssize_t rc; |
| |
| rc = kstrtouint_from_user(buf, count, 10, &value); |
| if (rc) |
| return rc; |
| |
| if (value) |
| hdev->timeout_jiffies = msecs_to_jiffies(value * 1000); |
| else |
| hdev->timeout_jiffies = MAX_SCHEDULE_TIMEOUT; |
| |
| return count; |
| } |
| |
| static ssize_t hl_check_razwi_happened(struct file *f, char __user *buf, |
| size_t count, loff_t *ppos) |
| { |
| struct hl_dbg_device_entry *entry = file_inode(f)->i_private; |
| struct hl_device *hdev = entry->hdev; |
| |
| hdev->asic_funcs->check_if_razwi_happened(hdev); |
| |
| return 0; |
| } |
| |
| static const struct file_operations hl_mem_scrub_fops = { |
| .owner = THIS_MODULE, |
| .write = hl_memory_scrub, |
| }; |
| |
| static const struct file_operations hl_data32b_fops = { |
| .owner = THIS_MODULE, |
| .read = hl_data_read32, |
| .write = hl_data_write32 |
| }; |
| |
| static const struct file_operations hl_data64b_fops = { |
| .owner = THIS_MODULE, |
| .read = hl_data_read64, |
| .write = hl_data_write64 |
| }; |
| |
| static const struct file_operations hl_dma_size_fops = { |
| .owner = THIS_MODULE, |
| .write = hl_dma_size_write |
| }; |
| |
| static const struct file_operations hl_monitor_dump_fops = { |
| .owner = THIS_MODULE, |
| .write = hl_monitor_dump_trigger |
| }; |
| |
| static const struct file_operations hl_i2c_data_fops = { |
| .owner = THIS_MODULE, |
| .read = hl_i2c_data_read, |
| .write = hl_i2c_data_write |
| }; |
| |
| static const struct file_operations hl_power_fops = { |
| .owner = THIS_MODULE, |
| .read = hl_get_power_state, |
| .write = hl_set_power_state |
| }; |
| |
| static const struct file_operations hl_led0_fops = { |
| .owner = THIS_MODULE, |
| .write = hl_led0_write |
| }; |
| |
| static const struct file_operations hl_led1_fops = { |
| .owner = THIS_MODULE, |
| .write = hl_led1_write |
| }; |
| |
| static const struct file_operations hl_led2_fops = { |
| .owner = THIS_MODULE, |
| .write = hl_led2_write |
| }; |
| |
| static const struct file_operations hl_device_fops = { |
| .owner = THIS_MODULE, |
| .read = hl_device_read, |
| .write = hl_device_write |
| }; |
| |
| static const struct file_operations hl_clk_gate_fops = { |
| .owner = THIS_MODULE, |
| .read = hl_clk_gate_read, |
| .write = hl_clk_gate_write |
| }; |
| |
| static const struct file_operations hl_stop_on_err_fops = { |
| .owner = THIS_MODULE, |
| .read = hl_stop_on_err_read, |
| .write = hl_stop_on_err_write |
| }; |
| |
| static const struct file_operations hl_security_violations_fops = { |
| .owner = THIS_MODULE, |
| .read = hl_security_violations_read |
| }; |
| |
| static const struct file_operations hl_state_dump_fops = { |
| .owner = THIS_MODULE, |
| .read = hl_state_dump_read, |
| .write = hl_state_dump_write |
| }; |
| |
| static const struct file_operations hl_timeout_locked_fops = { |
| .owner = THIS_MODULE, |
| .read = hl_timeout_locked_read, |
| .write = hl_timeout_locked_write |
| }; |
| |
| static const struct file_operations hl_razwi_check_fops = { |
| .owner = THIS_MODULE, |
| .read = hl_check_razwi_happened |
| }; |
| |
| static const struct hl_info_list hl_debugfs_list[] = { |
| {"command_buffers", command_buffers_show, NULL}, |
| {"command_submission", command_submission_show, NULL}, |
| {"command_submission_jobs", command_submission_jobs_show, NULL}, |
| {"userptr", userptr_show, NULL}, |
| {"vm", vm_show, NULL}, |
| {"userptr_lookup", userptr_lookup_show, userptr_lookup_write}, |
| {"mmu", mmu_show, mmu_asid_va_write}, |
| {"mmu_error", mmu_ack_error, mmu_ack_error_value_write}, |
| {"engines", engines_show, NULL}, |
| }; |
| |
| static int hl_debugfs_open(struct inode *inode, struct file *file) |
| { |
| struct hl_debugfs_entry *node = inode->i_private; |
| |
| return single_open(file, node->info_ent->show, node); |
| } |
| |
| static ssize_t hl_debugfs_write(struct file *file, const char __user *buf, |
| size_t count, loff_t *f_pos) |
| { |
| struct hl_debugfs_entry *node = file->f_inode->i_private; |
| |
| if (node->info_ent->write) |
| return node->info_ent->write(file, buf, count, f_pos); |
| else |
| return -EINVAL; |
| |
| } |
| |
| static const struct file_operations hl_debugfs_fops = { |
| .owner = THIS_MODULE, |
| .open = hl_debugfs_open, |
| .read = seq_read, |
| .write = hl_debugfs_write, |
| .llseek = seq_lseek, |
| .release = single_release, |
| }; |
| |
| static void add_secured_nodes(struct hl_dbg_device_entry *dev_entry, struct dentry *root) |
| { |
| debugfs_create_u8("i2c_bus", |
| 0644, |
| root, |
| &dev_entry->i2c_bus); |
| |
| debugfs_create_u8("i2c_addr", |
| 0644, |
| root, |
| &dev_entry->i2c_addr); |
| |
| debugfs_create_u8("i2c_reg", |
| 0644, |
| root, |
| &dev_entry->i2c_reg); |
| |
| debugfs_create_u8("i2c_len", |
| 0644, |
| root, |
| &dev_entry->i2c_len); |
| |
| debugfs_create_file("i2c_data", |
| 0644, |
| root, |
| dev_entry, |
| &hl_i2c_data_fops); |
| |
| debugfs_create_file("led0", |
| 0200, |
| root, |
| dev_entry, |
| &hl_led0_fops); |
| |
| debugfs_create_file("led1", |
| 0200, |
| root, |
| dev_entry, |
| &hl_led1_fops); |
| |
| debugfs_create_file("led2", |
| 0200, |
| root, |
| dev_entry, |
| &hl_led2_fops); |
| } |
| |
| static void add_files_to_device(struct hl_device *hdev, struct hl_dbg_device_entry *dev_entry, |
| struct dentry *root) |
| { |
| int count = ARRAY_SIZE(hl_debugfs_list); |
| struct hl_debugfs_entry *entry; |
| int i; |
| |
| debugfs_create_x64("memory_scrub_val", |
| 0644, |
| root, |
| &hdev->memory_scrub_val); |
| |
| debugfs_create_file("memory_scrub", |
| 0200, |
| root, |
| dev_entry, |
| &hl_mem_scrub_fops); |
| |
| debugfs_create_x64("addr", |
| 0644, |
| root, |
| &dev_entry->addr); |
| |
| debugfs_create_file("data32", |
| 0644, |
| root, |
| dev_entry, |
| &hl_data32b_fops); |
| |
| debugfs_create_file("data64", |
| 0644, |
| root, |
| dev_entry, |
| &hl_data64b_fops); |
| |
| debugfs_create_file("set_power_state", |
| 0644, |
| root, |
| dev_entry, |
| &hl_power_fops); |
| |
| debugfs_create_file("device", |
| 0644, |
| root, |
| dev_entry, |
| &hl_device_fops); |
| |
| debugfs_create_file("clk_gate", |
| 0644, |
| root, |
| dev_entry, |
| &hl_clk_gate_fops); |
| |
| debugfs_create_file("stop_on_err", |
| 0644, |
| root, |
| dev_entry, |
| &hl_stop_on_err_fops); |
| |
| debugfs_create_file("dump_security_violations", |
| 0400, |
| root, |
| dev_entry, |
| &hl_security_violations_fops); |
| |
| debugfs_create_file("dump_razwi_events", |
| 0400, |
| root, |
| dev_entry, |
| &hl_razwi_check_fops); |
| |
| debugfs_create_file("dma_size", |
| 0200, |
| root, |
| dev_entry, |
| &hl_dma_size_fops); |
| |
| debugfs_create_blob("data_dma", |
| 0400, |
| root, |
| &dev_entry->data_dma_blob_desc); |
| |
| debugfs_create_file("monitor_dump_trig", |
| 0200, |
| root, |
| dev_entry, |
| &hl_monitor_dump_fops); |
| |
| debugfs_create_blob("monitor_dump", |
| 0400, |
| root, |
| &dev_entry->mon_dump_blob_desc); |
| |
| debugfs_create_x8("skip_reset_on_timeout", |
| 0644, |
| root, |
| &hdev->reset_info.skip_reset_on_timeout); |
| |
| debugfs_create_file("state_dump", |
| 0644, |
| root, |
| dev_entry, |
| &hl_state_dump_fops); |
| |
| debugfs_create_file("timeout_locked", |
| 0644, |
| root, |
| dev_entry, |
| &hl_timeout_locked_fops); |
| |
| debugfs_create_u32("device_release_watchdog_timeout", |
| 0644, |
| root, |
| &hdev->device_release_watchdog_timeout_sec); |
| |
| debugfs_create_u16("server_type", |
| 0444, |
| root, |
| &hdev->asic_prop.server_type); |
| |
| for (i = 0, entry = dev_entry->entry_arr ; i < count ; i++, entry++) { |
| debugfs_create_file(hl_debugfs_list[i].name, |
| 0644, |
| root, |
| entry, |
| &hl_debugfs_fops); |
| entry->info_ent = &hl_debugfs_list[i]; |
| entry->dev_entry = dev_entry; |
| } |
| } |
| |
| int hl_debugfs_device_init(struct hl_device *hdev) |
| { |
| struct hl_dbg_device_entry *dev_entry = &hdev->hl_debugfs; |
| int count = ARRAY_SIZE(hl_debugfs_list); |
| |
| dev_entry->hdev = hdev; |
| dev_entry->entry_arr = kmalloc_array(count, sizeof(struct hl_debugfs_entry), GFP_KERNEL); |
| if (!dev_entry->entry_arr) |
| return -ENOMEM; |
| |
| dev_entry->data_dma_blob_desc.size = 0; |
| dev_entry->data_dma_blob_desc.data = NULL; |
| dev_entry->mon_dump_blob_desc.size = 0; |
| dev_entry->mon_dump_blob_desc.data = NULL; |
| |
| INIT_LIST_HEAD(&dev_entry->file_list); |
| INIT_LIST_HEAD(&dev_entry->cb_list); |
| INIT_LIST_HEAD(&dev_entry->cs_list); |
| INIT_LIST_HEAD(&dev_entry->cs_job_list); |
| INIT_LIST_HEAD(&dev_entry->userptr_list); |
| INIT_LIST_HEAD(&dev_entry->ctx_mem_hash_list); |
| mutex_init(&dev_entry->file_mutex); |
| init_rwsem(&dev_entry->state_dump_sem); |
| spin_lock_init(&dev_entry->cb_spinlock); |
| spin_lock_init(&dev_entry->cs_spinlock); |
| spin_lock_init(&dev_entry->cs_job_spinlock); |
| spin_lock_init(&dev_entry->userptr_spinlock); |
| mutex_init(&dev_entry->ctx_mem_hash_mutex); |
| |
| return 0; |
| } |
| |
| void hl_debugfs_device_fini(struct hl_device *hdev) |
| { |
| struct hl_dbg_device_entry *entry = &hdev->hl_debugfs; |
| int i; |
| |
| mutex_destroy(&entry->ctx_mem_hash_mutex); |
| mutex_destroy(&entry->file_mutex); |
| |
| vfree(entry->data_dma_blob_desc.data); |
| vfree(entry->mon_dump_blob_desc.data); |
| |
| for (i = 0; i < ARRAY_SIZE(entry->state_dump); ++i) |
| vfree(entry->state_dump[i]); |
| |
| kfree(entry->entry_arr); |
| } |
| |
| void hl_debugfs_add_device(struct hl_device *hdev) |
| { |
| struct hl_dbg_device_entry *dev_entry = &hdev->hl_debugfs; |
| |
| dev_entry->root = hdev->drm.accel->debugfs_root; |
| |
| add_files_to_device(hdev, dev_entry, dev_entry->root); |
| |
| if (!hdev->asic_prop.fw_security_enabled) |
| add_secured_nodes(dev_entry, dev_entry->root); |
| } |
| |
| void hl_debugfs_add_file(struct hl_fpriv *hpriv) |
| { |
| struct hl_dbg_device_entry *dev_entry = &hpriv->hdev->hl_debugfs; |
| |
| mutex_lock(&dev_entry->file_mutex); |
| list_add(&hpriv->debugfs_list, &dev_entry->file_list); |
| mutex_unlock(&dev_entry->file_mutex); |
| } |
| |
| void hl_debugfs_remove_file(struct hl_fpriv *hpriv) |
| { |
| struct hl_dbg_device_entry *dev_entry = &hpriv->hdev->hl_debugfs; |
| |
| mutex_lock(&dev_entry->file_mutex); |
| list_del(&hpriv->debugfs_list); |
| mutex_unlock(&dev_entry->file_mutex); |
| } |
| |
| void hl_debugfs_add_cb(struct hl_cb *cb) |
| { |
| struct hl_dbg_device_entry *dev_entry = &cb->hdev->hl_debugfs; |
| |
| spin_lock(&dev_entry->cb_spinlock); |
| list_add(&cb->debugfs_list, &dev_entry->cb_list); |
| spin_unlock(&dev_entry->cb_spinlock); |
| } |
| |
| void hl_debugfs_remove_cb(struct hl_cb *cb) |
| { |
| struct hl_dbg_device_entry *dev_entry = &cb->hdev->hl_debugfs; |
| |
| spin_lock(&dev_entry->cb_spinlock); |
| list_del(&cb->debugfs_list); |
| spin_unlock(&dev_entry->cb_spinlock); |
| } |
| |
| void hl_debugfs_add_cs(struct hl_cs *cs) |
| { |
| struct hl_dbg_device_entry *dev_entry = &cs->ctx->hdev->hl_debugfs; |
| |
| spin_lock(&dev_entry->cs_spinlock); |
| list_add(&cs->debugfs_list, &dev_entry->cs_list); |
| spin_unlock(&dev_entry->cs_spinlock); |
| } |
| |
| void hl_debugfs_remove_cs(struct hl_cs *cs) |
| { |
| struct hl_dbg_device_entry *dev_entry = &cs->ctx->hdev->hl_debugfs; |
| |
| spin_lock(&dev_entry->cs_spinlock); |
| list_del(&cs->debugfs_list); |
| spin_unlock(&dev_entry->cs_spinlock); |
| } |
| |
| void hl_debugfs_add_job(struct hl_device *hdev, struct hl_cs_job *job) |
| { |
| struct hl_dbg_device_entry *dev_entry = &hdev->hl_debugfs; |
| |
| spin_lock(&dev_entry->cs_job_spinlock); |
| list_add(&job->debugfs_list, &dev_entry->cs_job_list); |
| spin_unlock(&dev_entry->cs_job_spinlock); |
| } |
| |
| void hl_debugfs_remove_job(struct hl_device *hdev, struct hl_cs_job *job) |
| { |
| struct hl_dbg_device_entry *dev_entry = &hdev->hl_debugfs; |
| |
| spin_lock(&dev_entry->cs_job_spinlock); |
| list_del(&job->debugfs_list); |
| spin_unlock(&dev_entry->cs_job_spinlock); |
| } |
| |
| void hl_debugfs_add_userptr(struct hl_device *hdev, struct hl_userptr *userptr) |
| { |
| struct hl_dbg_device_entry *dev_entry = &hdev->hl_debugfs; |
| |
| spin_lock(&dev_entry->userptr_spinlock); |
| list_add(&userptr->debugfs_list, &dev_entry->userptr_list); |
| spin_unlock(&dev_entry->userptr_spinlock); |
| } |
| |
| void hl_debugfs_remove_userptr(struct hl_device *hdev, |
| struct hl_userptr *userptr) |
| { |
| struct hl_dbg_device_entry *dev_entry = &hdev->hl_debugfs; |
| |
| spin_lock(&dev_entry->userptr_spinlock); |
| list_del(&userptr->debugfs_list); |
| spin_unlock(&dev_entry->userptr_spinlock); |
| } |
| |
| void hl_debugfs_add_ctx_mem_hash(struct hl_device *hdev, struct hl_ctx *ctx) |
| { |
| struct hl_dbg_device_entry *dev_entry = &hdev->hl_debugfs; |
| |
| mutex_lock(&dev_entry->ctx_mem_hash_mutex); |
| list_add(&ctx->debugfs_list, &dev_entry->ctx_mem_hash_list); |
| mutex_unlock(&dev_entry->ctx_mem_hash_mutex); |
| } |
| |
| void hl_debugfs_remove_ctx_mem_hash(struct hl_device *hdev, struct hl_ctx *ctx) |
| { |
| struct hl_dbg_device_entry *dev_entry = &hdev->hl_debugfs; |
| |
| mutex_lock(&dev_entry->ctx_mem_hash_mutex); |
| list_del(&ctx->debugfs_list); |
| mutex_unlock(&dev_entry->ctx_mem_hash_mutex); |
| } |
| |
| /** |
| * hl_debugfs_set_state_dump - register state dump making it accessible via |
| * debugfs |
| * @hdev: pointer to the device structure |
| * @data: the actual dump data |
| * @length: the length of the data |
| */ |
| void hl_debugfs_set_state_dump(struct hl_device *hdev, char *data, |
| unsigned long length) |
| { |
| struct hl_dbg_device_entry *dev_entry = &hdev->hl_debugfs; |
| |
| down_write(&dev_entry->state_dump_sem); |
| |
| dev_entry->state_dump_head = (dev_entry->state_dump_head + 1) % |
| ARRAY_SIZE(dev_entry->state_dump); |
| vfree(dev_entry->state_dump[dev_entry->state_dump_head]); |
| dev_entry->state_dump[dev_entry->state_dump_head] = data; |
| |
| up_write(&dev_entry->state_dump_sem); |
| } |