habanalabs: move driver to accel subsystem

Now that we have a subsystem for compute accelerators, move the
habanalabs driver to it.

This patch only moves the files and fixes the Makefiles. Future
patches will change the existing code to register to the accel
subsystem and expose the accel device char files instead of the
habanalabs device char files.

Update the MAINTAINERS file to reflect this change.

Signed-off-by: Oded Gabbay <ogabbay@kernel.org>

1 files changed, 1948 insertions, 0 deletions

diff --git a/drivers/accel/habanalabs/common/debugfs.c b/drivers/accel/habanalabs/common/debugfs.c
new file mode 100644
index 000000000000..945c0e6758ca
--- /dev/null
+++ b/drivers/accel/habanalabs/common/debugfs.c
@@ -0,0 +1,1948 @@
+// 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);
+
+	debugfs_create_u32("device_release_watchdog_timeout",
+				0644,
+				dev_entry->root,
+				&hdev->device_release_watchdog_timeout_sec);
+
+	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);
+}