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, 0 insertions, 753 deletions

diff --git a/drivers/misc/habanalabs/common/habanalabs_drv.c b/drivers/misc/habanalabs/common/habanalabs_drv.c
deleted file mode 100644
index a2983913d7c0..000000000000
--- a/drivers/misc/habanalabs/common/habanalabs_drv.c
+++ /dev/null
@@ -1,753 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-
-/*
- * Copyright 2016-2021 HabanaLabs, Ltd.
- * All Rights Reserved.
- *
- */
-
-#define pr_fmt(fmt)		"habanalabs: " fmt
-
-#include "habanalabs.h"
-#include "../include/hw_ip/pci/pci_general.h"
-
-#include <linux/pci.h>
-#include <linux/aer.h>
-#include <linux/module.h>
-
-#define CREATE_TRACE_POINTS
-#include <trace/events/habanalabs.h>
-
-#define HL_DRIVER_AUTHOR	"HabanaLabs Kernel Driver Team"
-
-#define HL_DRIVER_DESC		"Driver for HabanaLabs's AI Accelerators"
-
-MODULE_AUTHOR(HL_DRIVER_AUTHOR);
-MODULE_DESCRIPTION(HL_DRIVER_DESC);
-MODULE_LICENSE("GPL v2");
-
-static int hl_major;
-static struct class *hl_class;
-static DEFINE_IDR(hl_devs_idr);
-static DEFINE_MUTEX(hl_devs_idr_lock);
-
-#define HL_DEFAULT_TIMEOUT_LOCKED	30	/* 30 seconds */
-#define GAUDI_DEFAULT_TIMEOUT_LOCKED	600	/* 10 minutes */
-
-static int timeout_locked = HL_DEFAULT_TIMEOUT_LOCKED;
-static int reset_on_lockup = 1;
-static int memory_scrub;
-static ulong boot_error_status_mask = ULONG_MAX;
-
-module_param(timeout_locked, int, 0444);
-MODULE_PARM_DESC(timeout_locked,
-	"Device lockup timeout in seconds (0 = disabled, default 30s)");
-
-module_param(reset_on_lockup, int, 0444);
-MODULE_PARM_DESC(reset_on_lockup,
-	"Do device reset on lockup (0 = no, 1 = yes, default yes)");
-
-module_param(memory_scrub, int, 0444);
-MODULE_PARM_DESC(memory_scrub,
-	"Scrub device memory in various states (0 = no, 1 = yes, default no)");
-
-module_param(boot_error_status_mask, ulong, 0444);
-MODULE_PARM_DESC(boot_error_status_mask,
-	"Mask of the error status during device CPU boot (If bitX is cleared then error X is masked. Default all 1's)");
-
-#define PCI_VENDOR_ID_HABANALABS	0x1da3
-
-#define PCI_IDS_GOYA			0x0001
-#define PCI_IDS_GAUDI			0x1000
-#define PCI_IDS_GAUDI_SEC		0x1010
-
-#define PCI_IDS_GAUDI2			0x1020
-
-static const struct pci_device_id ids[] = {
-	{ PCI_DEVICE(PCI_VENDOR_ID_HABANALABS, PCI_IDS_GOYA), },
-	{ PCI_DEVICE(PCI_VENDOR_ID_HABANALABS, PCI_IDS_GAUDI), },
-	{ PCI_DEVICE(PCI_VENDOR_ID_HABANALABS, PCI_IDS_GAUDI_SEC), },
-	{ PCI_DEVICE(PCI_VENDOR_ID_HABANALABS, PCI_IDS_GAUDI2), },
-	{ 0, }
-};
-MODULE_DEVICE_TABLE(pci, ids);
-
-/*
- * get_asic_type - translate device id to asic type
- *
- * @hdev: pointer to habanalabs device structure.
- *
- * Translate device id and revision id to asic type.
- * In case of unidentified device, return -1
- */
-static enum hl_asic_type get_asic_type(struct hl_device *hdev)
-{
-	struct pci_dev *pdev = hdev->pdev;
-	enum hl_asic_type asic_type = ASIC_INVALID;
-
-	switch (pdev->device) {
-	case PCI_IDS_GOYA:
-		asic_type = ASIC_GOYA;
-		break;
-	case PCI_IDS_GAUDI:
-		asic_type = ASIC_GAUDI;
-		break;
-	case PCI_IDS_GAUDI_SEC:
-		asic_type = ASIC_GAUDI_SEC;
-		break;
-	case PCI_IDS_GAUDI2:
-		switch (pdev->revision) {
-		case REV_ID_A:
-			asic_type = ASIC_GAUDI2;
-			break;
-		case REV_ID_B:
-			asic_type = ASIC_GAUDI2B;
-			break;
-		default:
-			break;
-		}
-		break;
-	default:
-		break;
-	}
-
-	return asic_type;
-}
-
-static bool is_asic_secured(enum hl_asic_type asic_type)
-{
-	switch (asic_type) {
-	case ASIC_GAUDI_SEC:
-		return true;
-	default:
-		return false;
-	}
-}
-
-/*
- * hl_device_open - open function for habanalabs device
- *
- * @inode: pointer to inode structure
- * @filp: pointer to file structure
- *
- * Called when process opens an habanalabs device.
- */
-int hl_device_open(struct inode *inode, struct file *filp)
-{
-	enum hl_device_status status;
-	struct hl_device *hdev;
-	struct hl_fpriv *hpriv;
-	int rc;
-
-	mutex_lock(&hl_devs_idr_lock);
-	hdev = idr_find(&hl_devs_idr, iminor(inode));
-	mutex_unlock(&hl_devs_idr_lock);
-
-	if (!hdev) {
-		pr_err("Couldn't find device %d:%d\n",
-			imajor(inode), iminor(inode));
-		return -ENXIO;
-	}
-
-	hpriv = kzalloc(sizeof(*hpriv), GFP_KERNEL);
-	if (!hpriv)
-		return -ENOMEM;
-
-	hpriv->hdev = hdev;
-	filp->private_data = hpriv;
-	hpriv->filp = filp;
-
-	mutex_init(&hpriv->notifier_event.lock);
-	mutex_init(&hpriv->restore_phase_mutex);
-	mutex_init(&hpriv->ctx_lock);
-	kref_init(&hpriv->refcount);
-	nonseekable_open(inode, filp);
-
-	hl_ctx_mgr_init(&hpriv->ctx_mgr);
-	hl_mem_mgr_init(hpriv->hdev->dev, &hpriv->mem_mgr, 0);
-
-	hpriv->taskpid = get_task_pid(current, PIDTYPE_PID);
-
-	mutex_lock(&hdev->fpriv_list_lock);
-
-	if (!hl_device_operational(hdev, &status)) {
-		dev_dbg_ratelimited(hdev->dev,
-			"Can't open %s because it is %s\n",
-			dev_name(hdev->dev), hdev->status[status]);
-
-		if (status == HL_DEVICE_STATUS_IN_RESET ||
-					status == HL_DEVICE_STATUS_IN_RESET_AFTER_DEVICE_RELEASE)
-			rc = -EAGAIN;
-		else
-			rc = -EPERM;
-
-		goto out_err;
-	}
-
-	if (hdev->is_in_dram_scrub) {
-		dev_dbg_ratelimited(hdev->dev,
-			"Can't open %s during dram scrub\n",
-			dev_name(hdev->dev));
-		rc = -EAGAIN;
-		goto out_err;
-	}
-
-	if (hdev->compute_ctx_in_release) {
-		dev_dbg_ratelimited(hdev->dev,
-			"Can't open %s because another user is still releasing it\n",
-			dev_name(hdev->dev));
-		rc = -EAGAIN;
-		goto out_err;
-	}
-
-	if (hdev->is_compute_ctx_active) {
-		dev_dbg_ratelimited(hdev->dev,
-			"Can't open %s because another user is working on it\n",
-			dev_name(hdev->dev));
-		rc = -EBUSY;
-		goto out_err;
-	}
-
-	rc = hl_ctx_create(hdev, hpriv);
-	if (rc) {
-		dev_err(hdev->dev, "Failed to create context %d\n", rc);
-		goto out_err;
-	}
-
-	list_add(&hpriv->dev_node, &hdev->fpriv_list);
-	mutex_unlock(&hdev->fpriv_list_lock);
-
-	hdev->asic_funcs->send_device_activity(hdev, true);
-
-	hl_debugfs_add_file(hpriv);
-
-	atomic_set(&hdev->captured_err_info.cs_timeout.write_enable, 1);
-	atomic_set(&hdev->captured_err_info.razwi_info_recorded, 0);
-	atomic_set(&hdev->captured_err_info.pgf_info_recorded, 0);
-	hdev->captured_err_info.undef_opcode.write_enable = true;
-
-	hdev->open_counter++;
-	hdev->last_successful_open_jif = jiffies;
-	hdev->last_successful_open_ktime = ktime_get();
-
-	return 0;
-
-out_err:
-	mutex_unlock(&hdev->fpriv_list_lock);
-	hl_mem_mgr_fini(&hpriv->mem_mgr);
-	hl_ctx_mgr_fini(hpriv->hdev, &hpriv->ctx_mgr);
-	filp->private_data = NULL;
-	mutex_destroy(&hpriv->ctx_lock);
-	mutex_destroy(&hpriv->restore_phase_mutex);
-	mutex_destroy(&hpriv->notifier_event.lock);
-	put_pid(hpriv->taskpid);
-
-	kfree(hpriv);
-
-	return rc;
-}
-
-int hl_device_open_ctrl(struct inode *inode, struct file *filp)
-{
-	struct hl_device *hdev;
-	struct hl_fpriv *hpriv;
-	int rc;
-
-	mutex_lock(&hl_devs_idr_lock);
-	hdev = idr_find(&hl_devs_idr, iminor(inode));
-	mutex_unlock(&hl_devs_idr_lock);
-
-	if (!hdev) {
-		pr_err("Couldn't find device %d:%d\n",
-			imajor(inode), iminor(inode));
-		return -ENXIO;
-	}
-
-	hpriv = kzalloc(sizeof(*hpriv), GFP_KERNEL);
-	if (!hpriv)
-		return -ENOMEM;
-
-	/* Prevent other routines from reading partial hpriv data by
-	 * initializing hpriv fields before inserting it to the list
-	 */
-	hpriv->hdev = hdev;
-	filp->private_data = hpriv;
-	hpriv->filp = filp;
-
-	mutex_init(&hpriv->notifier_event.lock);
-	nonseekable_open(inode, filp);
-
-	hpriv->taskpid = get_task_pid(current, PIDTYPE_PID);
-
-	mutex_lock(&hdev->fpriv_ctrl_list_lock);
-
-	if (!hl_ctrl_device_operational(hdev, NULL)) {
-		dev_dbg_ratelimited(hdev->dev_ctrl,
-			"Can't open %s because it is disabled\n",
-			dev_name(hdev->dev_ctrl));
-		rc = -EPERM;
-		goto out_err;
-	}
-
-	list_add(&hpriv->dev_node, &hdev->fpriv_ctrl_list);
-	mutex_unlock(&hdev->fpriv_ctrl_list_lock);
-
-	return 0;
-
-out_err:
-	mutex_unlock(&hdev->fpriv_ctrl_list_lock);
-	filp->private_data = NULL;
-	put_pid(hpriv->taskpid);
-
-	kfree(hpriv);
-
-	return rc;
-}
-
-static void set_driver_behavior_per_device(struct hl_device *hdev)
-{
-	hdev->nic_ports_mask = 0;
-	hdev->fw_components = FW_TYPE_ALL_TYPES;
-	hdev->mmu_enable = MMU_EN_ALL;
-	hdev->cpu_queues_enable = 1;
-	hdev->pldm = 0;
-	hdev->hard_reset_on_fw_events = 1;
-	hdev->bmc_enable = 1;
-	hdev->reset_on_preboot_fail = 1;
-	hdev->heartbeat = 1;
-}
-
-static void copy_kernel_module_params_to_device(struct hl_device *hdev)
-{
-	hdev->asic_prop.fw_security_enabled = is_asic_secured(hdev->asic_type);
-
-	hdev->major = hl_major;
-	hdev->memory_scrub = memory_scrub;
-	hdev->reset_on_lockup = reset_on_lockup;
-	hdev->boot_error_status_mask = boot_error_status_mask;
-}
-
-static void fixup_device_params_per_asic(struct hl_device *hdev, int timeout)
-{
-	switch (hdev->asic_type) {
-	case ASIC_GAUDI:
-	case ASIC_GAUDI_SEC:
-		/* If user didn't request a different timeout than the default one, we have
-		 * a different default timeout for Gaudi
-		 */
-		if (timeout == HL_DEFAULT_TIMEOUT_LOCKED)
-			hdev->timeout_jiffies = msecs_to_jiffies(GAUDI_DEFAULT_TIMEOUT_LOCKED *
-										MSEC_PER_SEC);
-
-		hdev->reset_upon_device_release = 0;
-		break;
-
-	case ASIC_GOYA:
-		hdev->reset_upon_device_release = 0;
-		break;
-
-	default:
-		hdev->reset_upon_device_release = 1;
-		break;
-	}
-}
-
-static int fixup_device_params(struct hl_device *hdev)
-{
-	int tmp_timeout;
-
-	tmp_timeout = timeout_locked;
-
-	hdev->fw_poll_interval_usec = HL_FW_STATUS_POLL_INTERVAL_USEC;
-	hdev->fw_comms_poll_interval_usec = HL_FW_STATUS_POLL_INTERVAL_USEC;
-
-	if (tmp_timeout)
-		hdev->timeout_jiffies = msecs_to_jiffies(tmp_timeout * MSEC_PER_SEC);
-	else
-		hdev->timeout_jiffies = MAX_SCHEDULE_TIMEOUT;
-
-	hdev->stop_on_err = true;
-	hdev->reset_info.curr_reset_cause = HL_RESET_CAUSE_UNKNOWN;
-	hdev->reset_info.prev_reset_trigger = HL_RESET_TRIGGER_DEFAULT;
-
-	/* Enable only after the initialization of the device */
-	hdev->disabled = true;
-
-	if (!(hdev->fw_components & FW_TYPE_PREBOOT_CPU) &&
-			(hdev->fw_components & ~FW_TYPE_PREBOOT_CPU)) {
-		pr_err("Preboot must be set along with other components");
-		return -EINVAL;
-	}
-
-	/* If CPU queues not enabled, no way to do heartbeat */
-	if (!hdev->cpu_queues_enable)
-		hdev->heartbeat = 0;
-
-	fixup_device_params_per_asic(hdev, tmp_timeout);
-
-	return 0;
-}
-
-/**
- * create_hdev - create habanalabs device instance
- *
- * @dev: will hold the pointer to the new habanalabs device structure
- * @pdev: pointer to the pci device
- *
- * Allocate memory for habanalabs device and initialize basic fields
- * Identify the ASIC type
- * Allocate ID (minor) for the device (only for real devices)
- */
-static int create_hdev(struct hl_device **dev, struct pci_dev *pdev)
-{
-	int main_id, ctrl_id = 0, rc = 0;
-	struct hl_device *hdev;
-
-	*dev = NULL;
-
-	hdev = kzalloc(sizeof(*hdev), GFP_KERNEL);
-	if (!hdev)
-		return -ENOMEM;
-
-	/* Will be NULL in case of simulator device */
-	hdev->pdev = pdev;
-
-	/* Assign status description string */
-	strncpy(hdev->status[HL_DEVICE_STATUS_OPERATIONAL], "operational", HL_STR_MAX);
-	strncpy(hdev->status[HL_DEVICE_STATUS_IN_RESET], "in reset", HL_STR_MAX);
-	strncpy(hdev->status[HL_DEVICE_STATUS_MALFUNCTION], "disabled", HL_STR_MAX);
-	strncpy(hdev->status[HL_DEVICE_STATUS_NEEDS_RESET], "needs reset", HL_STR_MAX);
-	strncpy(hdev->status[HL_DEVICE_STATUS_IN_DEVICE_CREATION],
-					"in device creation", HL_STR_MAX);
-	strncpy(hdev->status[HL_DEVICE_STATUS_IN_RESET_AFTER_DEVICE_RELEASE],
-					"in reset after device release", HL_STR_MAX);
-
-
-	/* First, we must find out which ASIC are we handling. This is needed
-	 * to configure the behavior of the driver (kernel parameters)
-	 */
-	hdev->asic_type = get_asic_type(hdev);
-	if (hdev->asic_type == ASIC_INVALID) {
-		dev_err(&pdev->dev, "Unsupported ASIC\n");
-		rc = -ENODEV;
-		goto free_hdev;
-	}
-
-	copy_kernel_module_params_to_device(hdev);
-
-	set_driver_behavior_per_device(hdev);
-
-	fixup_device_params(hdev);
-
-	mutex_lock(&hl_devs_idr_lock);
-
-	/* Always save 2 numbers, 1 for main device and 1 for control.
-	 * They must be consecutive
-	 */
-	main_id = idr_alloc(&hl_devs_idr, hdev, 0, HL_MAX_MINORS, GFP_KERNEL);
-
-	if (main_id >= 0)
-		ctrl_id = idr_alloc(&hl_devs_idr, hdev, main_id + 1,
-					main_id + 2, GFP_KERNEL);
-
-	mutex_unlock(&hl_devs_idr_lock);
-
-	if ((main_id < 0) || (ctrl_id < 0)) {
-		if ((main_id == -ENOSPC) || (ctrl_id == -ENOSPC))
-			pr_err("too many devices in the system\n");
-
-		if (main_id >= 0) {
-			mutex_lock(&hl_devs_idr_lock);
-			idr_remove(&hl_devs_idr, main_id);
-			mutex_unlock(&hl_devs_idr_lock);
-		}
-
-		rc = -EBUSY;
-		goto free_hdev;
-	}
-
-	hdev->id = main_id;
-	hdev->id_control = ctrl_id;
-
-	*dev = hdev;
-
-	return 0;
-
-free_hdev:
-	kfree(hdev);
-	return rc;
-}
-
-/*
- * destroy_hdev - destroy habanalabs device instance
- *
- * @dev: pointer to the habanalabs device structure
- *
- */
-static void destroy_hdev(struct hl_device *hdev)
-{
-	/* Remove device from the device list */
-	mutex_lock(&hl_devs_idr_lock);
-	idr_remove(&hl_devs_idr, hdev->id);
-	idr_remove(&hl_devs_idr, hdev->id_control);
-	mutex_unlock(&hl_devs_idr_lock);
-
-	kfree(hdev);
-}
-
-static int hl_pmops_suspend(struct device *dev)
-{
-	struct hl_device *hdev = dev_get_drvdata(dev);
-
-	pr_debug("Going to suspend PCI device\n");
-
-	if (!hdev) {
-		pr_err("device pointer is NULL in suspend\n");
-		return 0;
-	}
-
-	return hl_device_suspend(hdev);
-}
-
-static int hl_pmops_resume(struct device *dev)
-{
-	struct hl_device *hdev = dev_get_drvdata(dev);
-
-	pr_debug("Going to resume PCI device\n");
-
-	if (!hdev) {
-		pr_err("device pointer is NULL in resume\n");
-		return 0;
-	}
-
-	return hl_device_resume(hdev);
-}
-
-/**
- * hl_pci_probe - probe PCI habanalabs devices
- *
- * @pdev: pointer to pci device
- * @id: pointer to pci device id structure
- *
- * Standard PCI probe function for habanalabs device.
- * Create a new habanalabs device and initialize it according to the
- * device's type
- */
-static int hl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id)
-{
-	struct hl_device *hdev;
-	int rc;
-
-	dev_info(&pdev->dev, HL_NAME
-		 " device found [%04x:%04x] (rev %x)\n",
-		 (int)pdev->vendor, (int)pdev->device, (int)pdev->revision);
-
-	rc = create_hdev(&hdev, pdev);
-	if (rc)
-		return rc;
-
-	pci_set_drvdata(pdev, hdev);
-
-	pci_enable_pcie_error_reporting(pdev);
-
-	rc = hl_device_init(hdev, hl_class);
-	if (rc) {
-		dev_err(&pdev->dev, "Fatal error during habanalabs device init\n");
-		rc = -ENODEV;
-		goto disable_device;
-	}
-
-	return 0;
-
-disable_device:
-	pci_disable_pcie_error_reporting(pdev);
-	pci_set_drvdata(pdev, NULL);
-	destroy_hdev(hdev);
-
-	return rc;
-}
-
-/*
- * hl_pci_remove - remove PCI habanalabs devices
- *
- * @pdev: pointer to pci device
- *
- * Standard PCI remove function for habanalabs device
- */
-static void hl_pci_remove(struct pci_dev *pdev)
-{
-	struct hl_device *hdev;
-
-	hdev = pci_get_drvdata(pdev);
-	if (!hdev)
-		return;
-
-	hl_device_fini(hdev);
-	pci_disable_pcie_error_reporting(pdev);
-	pci_set_drvdata(pdev, NULL);
-	destroy_hdev(hdev);
-}
-
-/**
- * hl_pci_err_detected - a PCI bus error detected on this device
- *
- * @pdev: pointer to pci device
- * @state: PCI error type
- *
- * Called by the PCI subsystem whenever a non-correctable
- * PCI bus error is detected
- */
-static pci_ers_result_t
-hl_pci_err_detected(struct pci_dev *pdev, pci_channel_state_t state)
-{
-	struct hl_device *hdev = pci_get_drvdata(pdev);
-	enum pci_ers_result result;
-
-	switch (state) {
-	case pci_channel_io_normal:
-		dev_warn(hdev->dev, "PCI normal state error detected\n");
-		return PCI_ERS_RESULT_CAN_RECOVER;
-
-	case pci_channel_io_frozen:
-		dev_warn(hdev->dev, "PCI frozen state error detected\n");
-		result = PCI_ERS_RESULT_NEED_RESET;
-		break;
-
-	case pci_channel_io_perm_failure:
-		dev_warn(hdev->dev, "PCI failure state error detected\n");
-		result = PCI_ERS_RESULT_DISCONNECT;
-		break;
-
-	default:
-		result = PCI_ERS_RESULT_NONE;
-	}
-
-	hdev->asic_funcs->halt_engines(hdev, true, false);
-
-	return result;
-}
-
-/**
- * hl_pci_err_resume - resume after a PCI slot reset
- *
- * @pdev: pointer to pci device
- *
- */
-static void hl_pci_err_resume(struct pci_dev *pdev)
-{
-	struct hl_device *hdev = pci_get_drvdata(pdev);
-
-	dev_warn(hdev->dev, "Resuming device after PCI slot reset\n");
-	hl_device_resume(hdev);
-}
-
-/**
- * hl_pci_err_slot_reset - a PCI slot reset has just happened
- *
- * @pdev: pointer to pci device
- *
- * Determine if the driver can recover from the PCI slot reset
- */
-static pci_ers_result_t hl_pci_err_slot_reset(struct pci_dev *pdev)
-{
-	struct hl_device *hdev = pci_get_drvdata(pdev);
-
-	dev_warn(hdev->dev, "PCI slot reset detected\n");
-
-	return PCI_ERS_RESULT_RECOVERED;
-}
-
-static const struct dev_pm_ops hl_pm_ops = {
-	.suspend = hl_pmops_suspend,
-	.resume = hl_pmops_resume,
-};
-
-static const struct pci_error_handlers hl_pci_err_handler = {
-	.error_detected = hl_pci_err_detected,
-	.slot_reset = hl_pci_err_slot_reset,
-	.resume = hl_pci_err_resume,
-};
-
-static struct pci_driver hl_pci_driver = {
-	.name = HL_NAME,
-	.id_table = ids,
-	.probe = hl_pci_probe,
-	.remove = hl_pci_remove,
-	.shutdown = hl_pci_remove,
-	.driver = {
-		.name = HL_NAME,
-		.pm = &hl_pm_ops,
-		.probe_type = PROBE_PREFER_ASYNCHRONOUS,
-	},
-	.err_handler = &hl_pci_err_handler,
-};
-
-/*
- * hl_init - Initialize the habanalabs kernel driver
- */
-static int __init hl_init(void)
-{
-	int rc;
-	dev_t dev;
-
-	pr_info("loading driver\n");
-
-	rc = alloc_chrdev_region(&dev, 0, HL_MAX_MINORS, HL_NAME);
-	if (rc < 0) {
-		pr_err("unable to get major\n");
-		return rc;
-	}
-
-	hl_major = MAJOR(dev);
-
-	hl_class = class_create(THIS_MODULE, HL_NAME);
-	if (IS_ERR(hl_class)) {
-		pr_err("failed to allocate class\n");
-		rc = PTR_ERR(hl_class);
-		goto remove_major;
-	}
-
-	hl_debugfs_init();
-
-	rc = pci_register_driver(&hl_pci_driver);
-	if (rc) {
-		pr_err("failed to register pci device\n");
-		goto remove_debugfs;
-	}
-
-	pr_debug("driver loaded\n");
-
-	return 0;
-
-remove_debugfs:
-	hl_debugfs_fini();
-	class_destroy(hl_class);
-remove_major:
-	unregister_chrdev_region(MKDEV(hl_major, 0), HL_MAX_MINORS);
-	return rc;
-}
-
-/*
- * hl_exit - Release all resources of the habanalabs kernel driver
- */
-static void __exit hl_exit(void)
-{
-	pci_unregister_driver(&hl_pci_driver);
-
-	/*
-	 * Removing debugfs must be after all devices or simulator devices
-	 * have been removed because otherwise we get a bug in the
-	 * debugfs module for referencing NULL objects
-	 */
-	hl_debugfs_fini();
-
-	class_destroy(hl_class);
-	unregister_chrdev_region(MKDEV(hl_major, 0), HL_MAX_MINORS);
-
-	idr_destroy(&hl_devs_idr);
-
-	pr_debug("driver removed\n");
-}
-
-module_init(hl_init);
-module_exit(hl_exit);