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Diffstat (limited to 'drivers/misc/habanalabs/common/debugfs.c')
-rw-r--r--drivers/misc/habanalabs/common/debugfs.c1943
1 files changed, 1943 insertions, 0 deletions
diff --git a/drivers/misc/habanalabs/common/debugfs.c b/drivers/misc/habanalabs/common/debugfs.c
new file mode 100644
index 000000000..48d3ec8b5
--- /dev/null
+++ b/drivers/misc/habanalabs/common/debugfs.c
@@ -0,0 +1,1943 @@
+// 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 struct dentry *hl_debug_root;
+
+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)
+ 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)
+ 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)
+ 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;
+
+ if (!dev_entry->hdev->mmu_enable)
+ return 0;
+
+ spin_lock(&dev_entry->ctx_mem_hash_spinlock);
+
+ 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);
+
+ }
+
+ spin_unlock(&dev_entry->ctx_mem_hash_spinlock);
+
+ 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 (!hdev->mmu_enable)
+ return 0;
+
+ 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];
+ char *c;
+ ssize_t rc;
+
+ if (!hdev->mmu_enable)
+ return count;
+
+ 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 (!hdev->mmu_enable)
+ return 0;
+
+ 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];
+ ssize_t rc;
+
+ if (!hdev->mmu_enable)
+ return count;
+
+ 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 (!hdev->mmu_enable)
+ goto out;
+
+ 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;
+out:
+ 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 (!hdev->mmu_enable)
+ return false;
+
+ 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)
+{
+ debugfs_create_u8("i2c_bus",
+ 0644,
+ dev_entry->root,
+ &dev_entry->i2c_bus);
+
+ debugfs_create_u8("i2c_addr",
+ 0644,
+ dev_entry->root,
+ &dev_entry->i2c_addr);
+
+ debugfs_create_u8("i2c_reg",
+ 0644,
+ dev_entry->root,
+ &dev_entry->i2c_reg);
+
+ debugfs_create_u8("i2c_len",
+ 0644,
+ dev_entry->root,
+ &dev_entry->i2c_len);
+
+ debugfs_create_file("i2c_data",
+ 0644,
+ dev_entry->root,
+ dev_entry,
+ &hl_i2c_data_fops);
+
+ debugfs_create_file("led0",
+ 0200,
+ dev_entry->root,
+ dev_entry,
+ &hl_led0_fops);
+
+ debugfs_create_file("led1",
+ 0200,
+ dev_entry->root,
+ dev_entry,
+ &hl_led1_fops);
+
+ debugfs_create_file("led2",
+ 0200,
+ dev_entry->root,
+ dev_entry,
+ &hl_led2_fops);
+}
+
+void hl_debugfs_add_device(struct hl_device *hdev)
+{
+ struct hl_dbg_device_entry *dev_entry = &hdev->hl_debugfs;
+ int count = ARRAY_SIZE(hl_debugfs_list);
+ struct hl_debugfs_entry *entry;
+ int i;
+
+ dev_entry->hdev = hdev;
+ dev_entry->entry_arr = kmalloc_array(count,
+ sizeof(struct hl_debugfs_entry),
+ GFP_KERNEL);
+ if (!dev_entry->entry_arr)
+ return;
+
+ 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);
+ spin_lock_init(&dev_entry->ctx_mem_hash_spinlock);
+
+ dev_entry->root = debugfs_create_dir(dev_name(hdev->dev),
+ hl_debug_root);
+
+ debugfs_create_x64("memory_scrub_val",
+ 0644,
+ dev_entry->root,
+ &hdev->memory_scrub_val);
+
+ debugfs_create_file("memory_scrub",
+ 0200,
+ dev_entry->root,
+ dev_entry,
+ &hl_mem_scrub_fops);
+
+ debugfs_create_x64("addr",
+ 0644,
+ dev_entry->root,
+ &dev_entry->addr);
+
+ debugfs_create_file("data32",
+ 0644,
+ dev_entry->root,
+ dev_entry,
+ &hl_data32b_fops);
+
+ debugfs_create_file("data64",
+ 0644,
+ dev_entry->root,
+ dev_entry,
+ &hl_data64b_fops);
+
+ debugfs_create_file("set_power_state",
+ 0200,
+ dev_entry->root,
+ dev_entry,
+ &hl_power_fops);
+
+ debugfs_create_file("device",
+ 0200,
+ dev_entry->root,
+ dev_entry,
+ &hl_device_fops);
+
+ debugfs_create_file("clk_gate",
+ 0200,
+ dev_entry->root,
+ dev_entry,
+ &hl_clk_gate_fops);
+
+ debugfs_create_file("stop_on_err",
+ 0644,
+ dev_entry->root,
+ dev_entry,
+ &hl_stop_on_err_fops);
+
+ debugfs_create_file("dump_security_violations",
+ 0644,
+ dev_entry->root,
+ dev_entry,
+ &hl_security_violations_fops);
+
+ debugfs_create_file("dump_razwi_events",
+ 0644,
+ dev_entry->root,
+ dev_entry,
+ &hl_razwi_check_fops);
+
+ debugfs_create_file("dma_size",
+ 0200,
+ dev_entry->root,
+ dev_entry,
+ &hl_dma_size_fops);
+
+ debugfs_create_blob("data_dma",
+ 0400,
+ dev_entry->root,
+ &dev_entry->data_dma_blob_desc);
+
+ debugfs_create_file("monitor_dump_trig",
+ 0200,
+ dev_entry->root,
+ dev_entry,
+ &hl_monitor_dump_fops);
+
+ debugfs_create_blob("monitor_dump",
+ 0400,
+ dev_entry->root,
+ &dev_entry->mon_dump_blob_desc);
+
+ debugfs_create_x8("skip_reset_on_timeout",
+ 0644,
+ dev_entry->root,
+ &hdev->reset_info.skip_reset_on_timeout);
+
+ debugfs_create_file("state_dump",
+ 0600,
+ dev_entry->root,
+ dev_entry,
+ &hl_state_dump_fops);
+
+ debugfs_create_file("timeout_locked",
+ 0644,
+ dev_entry->root,
+ dev_entry,
+ &hl_timeout_locked_fops);
+
+ for (i = 0, entry = dev_entry->entry_arr ; i < count ; i++, entry++) {
+ debugfs_create_file(hl_debugfs_list[i].name,
+ 0444,
+ dev_entry->root,
+ entry,
+ &hl_debugfs_fops);
+ entry->info_ent = &hl_debugfs_list[i];
+ entry->dev_entry = dev_entry;
+ }
+
+ if (!hdev->asic_prop.fw_security_enabled)
+ add_secured_nodes(dev_entry);
+}
+
+void hl_debugfs_remove_device(struct hl_device *hdev)
+{
+ struct hl_dbg_device_entry *entry = &hdev->hl_debugfs;
+ int i;
+
+ debugfs_remove_recursive(entry->root);
+
+ 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_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;
+
+ spin_lock(&dev_entry->ctx_mem_hash_spinlock);
+ list_add(&ctx->debugfs_list, &dev_entry->ctx_mem_hash_list);
+ spin_unlock(&dev_entry->ctx_mem_hash_spinlock);
+}
+
+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;
+
+ spin_lock(&dev_entry->ctx_mem_hash_spinlock);
+ list_del(&ctx->debugfs_list);
+ spin_unlock(&dev_entry->ctx_mem_hash_spinlock);
+}
+
+/**
+ * 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);
+}
+
+void __init hl_debugfs_init(void)
+{
+ hl_debug_root = debugfs_create_dir("habanalabs", NULL);
+}
+
+void hl_debugfs_fini(void)
+{
+ debugfs_remove_recursive(hl_debug_root);
+}