Merge tag 'drm-next-2023-02-23' of git://anongit.freedesktop.org/drm/drm

Pull drm updates from Dave Airlie:
 "There are a bunch of changes all over in the usual places.

  Highlights:

   - habanalabs moves from misc to accel

   - first accel driver for Intel VPU (Versatile Processing Unit)
     inference engine

   - dropped all the ancient legacy DRI1 drivers. I think it's been at
     least 10 years since anyone has heard about these.

   - Intel DG2 updates and prelim Meteorlake enablement

   - etnaviv adds support for Versilicon NPU device (a GPU like engine
     with inference accelerators)

  Detailed summary:

  Removals:
   - remove legacy dri1 drivers: i810, mga, r128, savage, sis, tdfx, via

  New driver:
   - intel VPU accelerator driver
   - habanalabs comes via drm tree now

  drm/core:
   - use drm_dbg_ helpers in several places
   - Document defaults for CRTC backgrounds
   - Document use of drm_minor

  edid:
   - improve mode parsing and refactoring

  connector:
   - support analog TV mode property

  media:
   - add some common formats

  udmabuf:
   - add vmap/vunmap methods

  fourcc:
   - add XRGB1555 and RGB565 formats
   - document open source user waiver

  firmware:
   - fix color-format selection for system framebuffer

  format-helper:
   - Add conversion from XRGB8888 to various sysfb formats
   - Make XRGB8888 the only driver-emulated legacy format
   - Add conversion from XRGB8888 to XBGR8888 and ABGR8888

  fb-helper:
   - fix preferred depth and bpp values across drivers
   - Avoid blank consoles from selecting an incorrect color format

  probe-helper:
   - Enable/disable HPD on connectors

  scheduler:
   - Fix lockup in drm_sched_entity_kill()
   - Deprecate drm_sched_resubmit_jobs()

  bridge:
   - remove unused functions
   - implement i2c probe_new in various drivers
   - ite-it6505: Locking fixes, Cache EDID data
   - ite-it66121: Support IT6610 chip
   - lontium-tl9611: Fix HDMI on DragonBoard 845c
   - parade-ps8640: Use atomic bridge functions
   - Support i.MX93 LDB plus DT bindings

  debugfs:
   - add per device helpers and convert drivers

  displayport:
   - mst fixes
   - add DP adaptive sync DPCD definitions

  fbdev:
   - always pick 32bpp as default
   - remove some unused code

  simpledrm:
   - support system memory framebuffers

  panel:
   - add orientation quirks for Lenovo Yoga Tab 3 X90F and DynaBook K50
   - Use ktime_get_boottime() to measure power-down delay
   - Fix auto-suspend delay
   - Visionox VTDR6130 AMOLED DSI
   - Support Himax HX8394
   - Convert many drivers to common generic DSI write-sequence helper
   - AUO A030JTN01

  ttm:
   - drop bo wait wrapper
   - fix MIPS build

  habanalabs:
   - moved driver to accel subsystem
   - gaudi2 decoder error improvement
   - more trace events
   - Gaudi2 abrupt reset by firmware support
   - add uAPI to flush memory transactions
   - add uAPI to pass through userspace reqs to fw
   - remove dma-buf export by handle

  amdgpu:
   - add new INFO queries for peak and min sclk/mclk for profile modes
   - Add PCIe info to the INFO IOCTL
   - secure display support for multiple displays
   - DML optimizations
   - DCN 3.2 updates
   - PSR updates
   - DP 2.1 updates
   - SR-IOV RAS updates
   - VCN RAS support
   - SMU 13.x updates
   - Switch 1 element arrays to flexible arrays
   - Add RAS support for DF 4.3
   - Stack size improvements
   - S0ix rework
   - Allow 0 as a vram limit on APUs
   - Handle profiling modes for SMU13.x
   - Fix possible segfault in failure case
   - Rework FW requests to happen in early_init for all IPs so that we
     don't lose the sbios console if FW is missing
   - Fix power reporting on certain firmwares for CZN/RN
   - Allow S0ix without BIOS support
   - Enable freesync over PCon
   - Re-enable the AGP aperture on GMC 11.x

  amdkfd:
   - Error handling fixes
   - PASID fixes
   - Fix for cleared VRAM BOs
   - Fix cleanup if GPUVM creation fails
   - Memory accounting fix
   - Use resource_size rather than open codeing it
   - GC11 mGPU fix

  radeon:
   - Switch 1 element arrays to flexible arrays
   - Fix memory leak on shutdown
   - move to new logging

  i915:
   - Meteorlake display/OA/GSC fw/workarounds enabling
   - DP MST DSC support
   - Gamma/degamma readout support for the state checker
   - Enable SDP split support for DP 2.0
   - Add probe blocking support to i915.force_probe parameter
   - Enable Xe HP 4tile support
   - Avoid display direct calls to uncore
   - Fix HuC delayed load memory leaks
   - Add DG2 workarounds Wa_18018764978 and Wa_18019271663
   - Improve suspend / resume times with VT-d scanout workaround active
   - Fix DG2 visual corruption on small BAR systems by not forgetting to
     copy CCS aux state
   - Fix TLB invalidation for Gen12.50 video and compute engines
   - Enable HF-EEODB by switching HDMI, DP and LVDS to use struct
     drm_edid
   - Start using unversioned DMC firmware paths for new platforms
   - ELD refactor: Stop using hardware buffer, precompute ELD
   - lots of display code refactoring

  nouveau:
   - drop legacy ioctl support
   - replace 0-sized array

  msm:
   - dpu/dsi/mdss: Support for SM8350, SM8450 SM8550 and SC8280XP platform
   - Added bindings for SM8150
   - dpu: Partial support for DSC on SM8150 and SM8250
   - dpu: Fixed color transformation matrix being lost on suspend/resume
   - dp: Support SDM845 and SC8280XP platforms
   - dp: Support for limiting DP link rate via DT property
   - dsi: Validate display modes according to the DSI OPP table
   - dsi: DSI PHY support for the SM6375 platform
   - Add MSM_SUBMIT_BO_NO_IMPLICI
   - a2xx: Support to load legacy firmware
   - a6xx: GPU devcore dump updates for a650/a660
   - GPU devfreq tuning and fixes
   - Turn 8960 HDMI PHY into clock provider,
   - Make 8960 HDMI PHY use PXO clock from DT

  etnaviv:
   - experimental versilicon NPU support
   - report GPU load via fdinfo format
   - MMU fault message improvements

  tegra:
   - rework syncpoint interrupt

  mediatek:
   - DSI timing fix
   - fix config deps

  ast:
   - various fixes

  exynos:
   - restore bridge chain order fixes

  gud:
   - convert to shadow plane buffers
   - perform flushing synchronously during atomic update
   - Use new debugfs helpers

  arm/hdlcd:
   - Use new debugfs helper

  ili9486:
   - Support 16-bit pixel data

  imx:
   - Split off IPUv3 driver

  mipi-dbi:
   - convert to DRM shadow-plane helpers
   - rsp driver changes
   - Support separate I/O-voltage supply

  mxsfb:
   - Depend on ARCH_MXS or ARCH_MXC

  sun4i:
   - convert to new TV mode property

  vc4:
   - convert to new TV mode property
   - kunit tests
   - Support RGB565 and RGB666 formats
   - convert dsi driver to bridge
   - Various HVS an CRTC fixes

  v3d:
   - Do not opencode drm_gem_object_lookup()

  virtio:
   - improve tracing

  vkms:
   - support small cursors in IGT tests
   - Fix SEGFAULT from incorrect GEM-buffer mapping

  rcar-du:
   - fixes and improvements"

* tag 'drm-next-2023-02-23' of git://anongit.freedesktop.org/drm/drm: (1455 commits)
  msm/fbdev: fix unused variable warning with clang.
  drm/fb-helper: Remove drm_fb_helper_unprepare() from drm_fb_helper_fini()
  dma-buf: make kobj_type structure constant
  drm/shmem-helper: Fix locking for drm_gem_shmem_get_pages_sgt()
  drm/amd/display: disable SubVP + DRR to prevent underflow
  drm/amd/display: Fail atomic_check early on normalize_zpos error
  drm/amd/pm: avoid unaligned access warnings
  drm/amd/display: avoid unaligned access warnings
  drm/amd/display: Remove duplicate/repeating expressions
  drm/amd/display: Remove duplicate/repeating expression
  drm/amd/display: Make variables declaration inside ifdef guard
  drm/amd/display: Fix excess arguments on kernel-doc
  drm/amd/display: Add previously missing includes
  drm/amd/amdgpu: Add function prototypes to headers
  drm/amd/display: Add function prototypes to headers
  drm/amd/display: Turn global functions into static
  drm/amd/display: remove unused _calculate_degamma_curve function
  drm/amd/display: remove unused func declaration from resource headers
  drm/amd/display: unset initial value for tf since it's never used
  drm/amd/display: camel case cleanup in color_gamma file
  ...

1 files changed, 755 insertions, 0 deletions

diff --git a/drivers/accel/habanalabs/common/habanalabs_drv.c b/drivers/accel/habanalabs/common/habanalabs_drv.c
new file mode 100644
index 000000000000..03dae57dc838
--- /dev/null
+++ b/drivers/accel/habanalabs/common/habanalabs_drv.c
@@ -0,0 +1,755 @@
+// 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);
+
+	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.razwi_detected, 0);
+	atomic_set(&hdev->captured_err_info.page_fault_info.page_fault_detected, 0);
+	hdev->captured_err_info.undef_opcode.write_enable = true;
+	hdev->captured_err_info.razwi_info.razwi_info_available = false;
+	hdev->captured_err_info.page_fault_info.page_fault_info_available = false;
+
+	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);