accel/ivpu: Introduce a new DRM driver for Intel VPU

VPU stands for Versatile Processing Unit and it's a CPU-integrated
inference accelerator for Computer Vision and Deep Learning
applications.

The VPU device consist of following components:
  - Buttress - provides CPU to VPU integration, interrupt, frequency and
    power management.
  - Memory Management Unit (based on ARM MMU-600) - translates VPU to
    host DMA addresses, isolates user workloads.
  - RISC based microcontroller - executes firmware that provides job
    execution API for the kernel-mode driver
  - Neural Compute Subsystem (NCS) - does the actual work, provides
    Compute and Copy engines.
  - Network on Chip (NoC) - network fabric connecting all the components

This driver supports VPU IP v2.7 integrated into Intel Meteor Lake
client CPUs (14th generation).

Module sources are at drivers/accel/ivpu and module name is
"intel_vpu.ko".

This patch includes only very besic functionality:
  - module, PCI device and IRQ initialization
  - register definitions and low level register manipulation functions
  - SET/GET_PARAM ioctls
  - power up without firmware
Co-developed-by: Krystian Pradzynski <krystian.pradzynski@linux.intel.com>
Signed-off-by: Krystian Pradzynski <krystian.pradzynski@linux.intel.com>
Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20230117092723.60441-2-jacek.lawrynowicz@linux.intel.com

MAINTAINERS

@@ -6894,6 +6894,15 @@ T:	git https://git.kernel.org/pub/scm/linux/kernel/git/ogabbay/accel.git
 F:	Documentation/accel/
 F:	drivers/accel/
 
+DRM ACCEL DRIVERS FOR INTEL VPU
+M:	Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
+M:	Stanislaw Gruszka <stanislaw.gruszka@linux.intel.com>
+L:	dri-devel@lists.freedesktop.org
+S:	Supported
+T:	git git://anongit.freedesktop.org/drm/drm-misc
+F:	drivers/accel/ivpu/
+F:	include/uapi/drm/ivpu_accel.h
+
 DRM DRIVERS FOR ALLWINNER A10
 M:	Maxime Ripard <mripard@kernel.org>
 M:	Chen-Yu Tsai <wens@csie.org>

drivers/Makefile

@@ -189,3 +189,4 @@ obj-$(CONFIG_COUNTER)		+= counter/
 obj-$(CONFIG_MOST)		+= most/
 obj-$(CONFIG_PECI)		+= peci/
 obj-$(CONFIG_HTE)		+= hte/
+obj-$(CONFIG_DRM_ACCEL)	+= accel/
\ No newline at end of file

drivers/accel/Kconfig

@@ -22,3 +22,5 @@ menuconfig DRM_ACCEL
 	  major number than GPUs, and will be exposed to user-space using
 	  different device files, called accel/accel* (in /dev, sysfs
 	  and debugfs).
+
+source "drivers/accel/ivpu/Kconfig"

drivers/accel/Makefile

+# SPDX-License-Identifier: GPL-2.0-only
+
+obj-y	+= ivpu/

drivers/accel/ivpu/Kconfig

+# SPDX-License-Identifier: GPL-2.0-only
+
+config DRM_ACCEL_IVPU
+	tristate "Intel VPU for Meteor Lake and newer"
+	depends on DRM_ACCEL
+	depends on X86_64 && !UML
+	depends on PCI && PCI_MSI
+	select FW_LOADER
+	select SHMEM
+	help
+	  Choose this option if you have a system that has an 14th generation Intel CPU
+	  or newer. VPU stands for Versatile Processing Unit and it's a CPU-integrated
+	  inference accelerator for Computer Vision and Deep Learning applications.
+
+	  If "M" is selected, the module will be called intel_vpu.

drivers/accel/ivpu/Makefile

+# SPDX-License-Identifier: GPL-2.0-only
+# Copyright (C) 2023 Intel Corporation
+
+intel_vpu-y := \
+	ivpu_drv.o \
+	ivpu_hw_mtl.o
+
+obj-$(CONFIG_DRM_ACCEL_IVPU) += intel_vpu.o
\ No newline at end of file

drivers/accel/ivpu/TODO

+- Move to threaded_irqs to mitigate potential infinite loop in ivpu_ipc_irq_handler()
+- Implement support for BLOB IDs
+- Add debugfs support to improve debugging and testing
+- Add tracing events for performance debugging
+- Implement HW based scheduling support
+- Use syncobjs for submit/sync
+- Refactor IPC protocol to improve message latency
+- Implement BO cache and MADVISE IOCTL
+- Add support for user allocated buffers using prime import and dma-buf heaps
+- Refactor struct ivpu_bo to use struct drm_gem_shmem_object
+- Add driver/device documentation

drivers/accel/ivpu/ivpu_drv.c

+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2020-2023 Intel Corporation
+ */
+
+#include <linux/firmware.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+
+#include <drm/drm_accel.h>
+#include <drm/drm_drv.h>
+#include <drm/drm_file.h>
+#include <drm/drm_gem.h>
+#include <drm/drm_ioctl.h>
+
+#include "ivpu_drv.h"
+#include "ivpu_hw.h"
+
+#ifndef DRIVER_VERSION_STR
+#define DRIVER_VERSION_STR __stringify(DRM_IVPU_DRIVER_MAJOR) "." \
+			   __stringify(DRM_IVPU_DRIVER_MINOR) "."
+#endif
+
+static const struct drm_driver driver;
+
+int ivpu_dbg_mask;
+module_param_named(dbg_mask, ivpu_dbg_mask, int, 0644);
+MODULE_PARM_DESC(dbg_mask, "Driver debug mask. See IVPU_DBG_* macros.");
+
+u8 ivpu_pll_min_ratio;
+module_param_named(pll_min_ratio, ivpu_pll_min_ratio, byte, 0644);
+MODULE_PARM_DESC(pll_min_ratio, "Minimum PLL ratio used to set VPU frequency");
+
+u8 ivpu_pll_max_ratio = U8_MAX;
+module_param_named(pll_max_ratio, ivpu_pll_max_ratio, byte, 0644);
+MODULE_PARM_DESC(pll_max_ratio, "Maximum PLL ratio used to set VPU frequency");
+
+struct ivpu_file_priv *ivpu_file_priv_get(struct ivpu_file_priv *file_priv)
+{
+	kref_get(&file_priv->ref);
+	return file_priv;
+}
+
+static void file_priv_release(struct kref *ref)
+{
+	struct ivpu_file_priv *file_priv = container_of(ref, struct ivpu_file_priv, ref);
+
+	kfree(file_priv);
+}
+
+void ivpu_file_priv_put(struct ivpu_file_priv **link)
+{
+	struct ivpu_file_priv *file_priv = *link;
+
+	WARN_ON(!file_priv);
+
+	*link = NULL;
+	kref_put(&file_priv->ref, file_priv_release);
+}
+
+static int ivpu_get_param_ioctl(struct drm_device *dev, void *data, struct drm_file *file)
+{
+	struct ivpu_file_priv *file_priv = file->driver_priv;
+	struct ivpu_device *vdev = file_priv->vdev;
+	struct pci_dev *pdev = to_pci_dev(vdev->drm.dev);
+	struct drm_ivpu_param *args = data;
+	int ret = 0;
+
+	switch (args->param) {
+	case DRM_IVPU_PARAM_DEVICE_ID:
+		args->value = pdev->device;
+		break;
+	case DRM_IVPU_PARAM_DEVICE_REVISION:
+		args->value = pdev->revision;
+		break;
+	case DRM_IVPU_PARAM_PLATFORM_TYPE:
+		args->value = vdev->platform;
+		break;
+	case DRM_IVPU_PARAM_CORE_CLOCK_RATE:
+		args->value = ivpu_hw_reg_pll_freq_get(vdev);
+		break;
+	case DRM_IVPU_PARAM_NUM_CONTEXTS:
+		args->value = ivpu_get_context_count(vdev);
+		break;
+	case DRM_IVPU_PARAM_CONTEXT_BASE_ADDRESS:
+		args->value = vdev->hw->ranges.user_low.start;
+		break;
+	case DRM_IVPU_PARAM_CONTEXT_PRIORITY:
+		args->value = file_priv->priority;
+		break;
+	default:
+		ret = -EINVAL;
+		break;
+	}
+
+	return ret;
+}
+
+static int ivpu_set_param_ioctl(struct drm_device *dev, void *data, struct drm_file *file)
+{
+	struct ivpu_file_priv *file_priv = file->driver_priv;
+	struct drm_ivpu_param *args = data;
+	int ret = 0;
+
+	switch (args->param) {
+	case DRM_IVPU_PARAM_CONTEXT_PRIORITY:
+		if (args->value <= DRM_IVPU_CONTEXT_PRIORITY_REALTIME)
+			file_priv->priority = args->value;
+		else
+			ret = -EINVAL;
+		break;
+	default:
+		ret = -EINVAL;
+	}
+
+	return ret;
+}
+
+static int ivpu_open(struct drm_device *dev, struct drm_file *file)
+{
+	struct ivpu_device *vdev = to_ivpu_device(dev);
+	struct ivpu_file_priv *file_priv;
+
+	file_priv = kzalloc(sizeof(*file_priv), GFP_KERNEL);
+	if (!file_priv)
+		return -ENOMEM;
+
+	file_priv->vdev = vdev;
+	file_priv->priority = DRM_IVPU_CONTEXT_PRIORITY_NORMAL;
+	kref_init(&file_priv->ref);
+
+	file->driver_priv = file_priv;
+	return 0;
+}
+
+static void ivpu_postclose(struct drm_device *dev, struct drm_file *file)
+{
+	struct ivpu_file_priv *file_priv = file->driver_priv;
+
+	ivpu_file_priv_put(&file_priv);
+}
+
+static const struct drm_ioctl_desc ivpu_drm_ioctls[] = {
+	DRM_IOCTL_DEF_DRV(IVPU_GET_PARAM, ivpu_get_param_ioctl, 0),
+	DRM_IOCTL_DEF_DRV(IVPU_SET_PARAM, ivpu_set_param_ioctl, 0),
+};
+
+int ivpu_shutdown(struct ivpu_device *vdev)
+{
+	int ret;
+
+	ivpu_hw_irq_disable(vdev);
+
+	ret = ivpu_hw_power_down(vdev);
+	if (ret)
+		ivpu_warn(vdev, "Failed to power down HW: %d\n", ret);
+
+	return ret;
+}
+
+static const struct file_operations ivpu_fops = {
+	.owner		= THIS_MODULE,
+	.mmap           = drm_gem_mmap,
+	DRM_ACCEL_FOPS,
+};
+
+static const struct drm_driver driver = {
+	.driver_features = DRIVER_GEM | DRIVER_COMPUTE_ACCEL,
+
+	.open = ivpu_open,
+	.postclose = ivpu_postclose,
+
+	.ioctls = ivpu_drm_ioctls,
+	.num_ioctls = ARRAY_SIZE(ivpu_drm_ioctls),
+	.fops = &ivpu_fops,
+
+	.name = DRIVER_NAME,
+	.desc = DRIVER_DESC,
+	.date = DRIVER_DATE,
+	.major = DRM_IVPU_DRIVER_MAJOR,
+	.minor = DRM_IVPU_DRIVER_MINOR,
+};
+
+static int ivpu_irq_init(struct ivpu_device *vdev)
+{
+	struct pci_dev *pdev = to_pci_dev(vdev->drm.dev);
+	int ret;
+
+	ret = pci_alloc_irq_vectors(pdev, 1, 1, PCI_IRQ_MSI | PCI_IRQ_MSIX);
+	if (ret < 0) {
+		ivpu_err(vdev, "Failed to allocate a MSI IRQ: %d\n", ret);
+		return ret;
+	}
+
+	vdev->irq = pci_irq_vector(pdev, 0);
+
+	ret = devm_request_irq(vdev->drm.dev, vdev->irq, vdev->hw->ops->irq_handler,
+			       IRQF_NO_AUTOEN, DRIVER_NAME, vdev);
+	if (ret)
+		ivpu_err(vdev, "Failed to request an IRQ %d\n", ret);
+
+	return ret;
+}
+
+static int ivpu_pci_init(struct ivpu_device *vdev)
+{
+	struct pci_dev *pdev = to_pci_dev(vdev->drm.dev);
+	struct resource *bar0 = &pdev->resource[0];
+	struct resource *bar4 = &pdev->resource[4];
+	int ret;
+
+	ivpu_dbg(vdev, MISC, "Mapping BAR0 (RegV) %pR\n", bar0);
+	vdev->regv = devm_ioremap_resource(vdev->drm.dev, bar0);
+	if (IS_ERR(vdev->regv)) {
+		ivpu_err(vdev, "Failed to map bar 0: %pe\n", vdev->regv);
+		return PTR_ERR(vdev->regv);
+	}
+
+	ivpu_dbg(vdev, MISC, "Mapping BAR4 (RegB) %pR\n", bar4);
+	vdev->regb = devm_ioremap_resource(vdev->drm.dev, bar4);
+	if (IS_ERR(vdev->regb)) {
+		ivpu_err(vdev, "Failed to map bar 4: %pe\n", vdev->regb);
+		return PTR_ERR(vdev->regb);
+	}
+
+	ret = dma_set_mask_and_coherent(vdev->drm.dev, DMA_BIT_MASK(38));
+	if (ret) {
+		ivpu_err(vdev, "Failed to set DMA mask: %d\n", ret);
+		return ret;
+	}
+
+	/* Clear any pending errors */
+	pcie_capability_clear_word(pdev, PCI_EXP_DEVSTA, 0x3f);
+
+	ret = pcim_enable_device(pdev);
+	if (ret) {
+		ivpu_err(vdev, "Failed to enable PCI device: %d\n", ret);
+		return ret;
+	}
+
+	pci_set_master(pdev);
+
+	return 0;
+}
+
+static int ivpu_dev_init(struct ivpu_device *vdev)
+{
+	int ret;
+
+	vdev->hw = drmm_kzalloc(&vdev->drm, sizeof(*vdev->hw), GFP_KERNEL);
+	if (!vdev->hw)
+		return -ENOMEM;
+
+	vdev->hw->ops = &ivpu_hw_mtl_ops;
+	vdev->platform = IVPU_PLATFORM_INVALID;
+	vdev->context_xa_limit.min = IVPU_GLOBAL_CONTEXT_MMU_SSID + 1;
+	vdev->context_xa_limit.max = IVPU_CONTEXT_LIMIT;
+	xa_init_flags(&vdev->context_xa, XA_FLAGS_ALLOC);
+
+	ret = ivpu_pci_init(vdev);
+	if (ret) {
+		ivpu_err(vdev, "Failed to initialize PCI device: %d\n", ret);
+		goto err_xa_destroy;
+	}
+
+	ret = ivpu_irq_init(vdev);
+	if (ret) {
+		ivpu_err(vdev, "Failed to initialize IRQs: %d\n", ret);
+		goto err_xa_destroy;
+	}
+
+	/* Init basic HW info based on buttress registers which are accessible before power up */
+	ret = ivpu_hw_info_init(vdev);
+	if (ret) {
+		ivpu_err(vdev, "Failed to initialize HW info: %d\n", ret);
+		goto err_xa_destroy;
+	}
+
+	/* Power up early so the rest of init code can access VPU registers */
+	ret = ivpu_hw_power_up(vdev);
+	if (ret) {
+		ivpu_err(vdev, "Failed to power up HW: %d\n", ret);
+		goto err_xa_destroy;
+	}
+
+	return 0;
+
+err_xa_destroy:
+	xa_destroy(&vdev->context_xa);
+	return ret;
+}
+
+static void ivpu_dev_fini(struct ivpu_device *vdev)
+{
+	ivpu_shutdown(vdev);
+
+	drm_WARN_ON(&vdev->drm, !xa_empty(&vdev->context_xa));
+	xa_destroy(&vdev->context_xa);
+}
+
+static struct pci_device_id ivpu_pci_ids[] = {
+	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_MTL) },
+	{ }
+};
+MODULE_DEVICE_TABLE(pci, ivpu_pci_ids);
+
+static int ivpu_probe(struct pci_dev *pdev, const struct pci_device_id *id)
+{
+	struct ivpu_device *vdev;
+	int ret;
+
+	vdev = devm_drm_dev_alloc(&pdev->dev, &driver, struct ivpu_device, drm);
+	if (IS_ERR(vdev))
+		return PTR_ERR(vdev);
+
+	pci_set_drvdata(pdev, vdev);
+
+	ret = ivpu_dev_init(vdev);
+	if (ret) {
+		dev_err(&pdev->dev, "Failed to initialize VPU device: %d\n", ret);
+		return ret;
+	}
+
+	ret = drm_dev_register(&vdev->drm, 0);
+	if (ret) {
+		dev_err(&pdev->dev, "Failed to register DRM device: %d\n", ret);
+		ivpu_dev_fini(vdev);
+	}
+
+	return ret;
+}
+
+static void ivpu_remove(struct pci_dev *pdev)
+{
+	struct ivpu_device *vdev = pci_get_drvdata(pdev);
+
+	drm_dev_unregister(&vdev->drm);
+	ivpu_dev_fini(vdev);
+}
+
+static struct pci_driver ivpu_pci_driver = {
+	.name = KBUILD_MODNAME,
+	.id_table = ivpu_pci_ids,
+	.probe = ivpu_probe,
+	.remove = ivpu_remove,
+};
+
+module_pci_driver(ivpu_pci_driver);
+
+MODULE_AUTHOR("Intel Corporation");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL and additional rights");
+MODULE_VERSION(DRIVER_VERSION_STR);

drivers/accel/ivpu/ivpu_drv.h

+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2020-2023 Intel Corporation
+ */
+
+#ifndef __IVPU_DRV_H__
+#define __IVPU_DRV_H__
+
+#include <drm/drm_device.h>
+#include <drm/drm_managed.h>
+#include <drm/drm_mm.h>
+#include <drm/drm_print.h>
+
+#include <linux/pci.h>
+#include <linux/xarray.h>
+#include <uapi/drm/ivpu_accel.h>
+
+#define DRIVER_NAME "intel_vpu"
+#define DRIVER_DESC "Driver for Intel Versatile Processing Unit (VPU)"
+#define DRIVER_DATE "20230117"
+
+#define PCI_DEVICE_ID_MTL   0x7d1d
+
+#define IVPU_GLOBAL_CONTEXT_MMU_SSID 0
+#define IVPU_CONTEXT_LIMIT	     64
+#define IVPU_NUM_ENGINES	     2
+
+#define IVPU_PLATFORM_SILICON 0
+#define IVPU_PLATFORM_SIMICS  2
+#define IVPU_PLATFORM_FPGA    3
+#define IVPU_PLATFORM_INVALID 8
+
+#define IVPU_DBG_REG	 BIT(0)
+#define IVPU_DBG_IRQ	 BIT(1)
+#define IVPU_DBG_MMU	 BIT(2)
+#define IVPU_DBG_FILE	 BIT(3)
+#define IVPU_DBG_MISC	 BIT(4)
+#define IVPU_DBG_FW_BOOT BIT(5)
+#define IVPU_DBG_PM	 BIT(6)
+#define IVPU_DBG_IPC	 BIT(7)
+#define IVPU_DBG_BO	 BIT(8)
+#define IVPU_DBG_JOB	 BIT(9)
+#define IVPU_DBG_JSM	 BIT(10)
+#define IVPU_DBG_KREF	 BIT(11)
+#define IVPU_DBG_RPM	 BIT(12)
+
+#define ivpu_err(vdev, fmt, ...) \
+	drm_err(&(vdev)->drm, "%s(): " fmt, __func__, ##__VA_ARGS__)
+
+#define ivpu_err_ratelimited(vdev, fmt, ...) \
+	drm_err_ratelimited(&(vdev)->drm, "%s(): " fmt, __func__, ##__VA_ARGS__)
+
+#define ivpu_warn(vdev, fmt, ...) \
+	drm_warn(&(vdev)->drm, "%s(): " fmt, __func__, ##__VA_ARGS__)
+
+#define ivpu_warn_ratelimited(vdev, fmt, ...) \
+	drm_err_ratelimited(&(vdev)->drm, "%s(): " fmt, __func__, ##__VA_ARGS__)
+
+#define ivpu_info(vdev, fmt, ...) drm_info(&(vdev)->drm, fmt, ##__VA_ARGS__)
+
+#define ivpu_dbg(vdev, type, fmt, args...) do {                                \
+	if (unlikely(IVPU_DBG_##type & ivpu_dbg_mask))                         \
+		dev_dbg((vdev)->drm.dev, "[%s] " fmt, #type, ##args);          \
+} while (0)
+
+#define IVPU_WA(wa_name) (vdev->wa.wa_name)
+
+struct ivpu_wa_table {
+	bool punit_disabled;
+	bool clear_runtime_mem;
+};
+
+struct ivpu_hw_info;
+
+struct ivpu_device {
+	struct drm_device drm;
+	void __iomem *regb;
+	void __iomem *regv;
+	u32 platform;
+	u32 irq;
+
+	struct ivpu_wa_table wa;
+	struct ivpu_hw_info *hw;
+
+	struct xarray context_xa;
+	struct xa_limit context_xa_limit;
+
+	struct {
+		int boot;
+		int jsm;
+		int tdr;
+		int reschedule_suspend;
+	} timeout;
+};
+
+/*
+ * file_priv has its own refcount (ref) that allows user space to close the fd
+ * without blocking even if VPU is still processing some jobs.
+ */
+struct ivpu_file_priv {
+	struct kref ref;
+	struct ivpu_device *vdev;
+	u32 priority;
+};
+
+extern int ivpu_dbg_mask;
+extern u8 ivpu_pll_min_ratio;
+extern u8 ivpu_pll_max_ratio;
+
+struct ivpu_file_priv *ivpu_file_priv_get(struct ivpu_file_priv *file_priv);
+void ivpu_file_priv_put(struct ivpu_file_priv **link);
+int ivpu_shutdown(struct ivpu_device *vdev);
+
+static inline bool ivpu_is_mtl(struct ivpu_device *vdev)
+{
+	return to_pci_dev(vdev->drm.dev)->device == PCI_DEVICE_ID_MTL;
+}
+
+static inline u8 ivpu_revision(struct ivpu_device *vdev)
+{
+	return to_pci_dev(vdev->drm.dev)->revision;
+}
+
+static inline u16 ivpu_device_id(struct ivpu_device *vdev)
+{
+	return to_pci_dev(vdev->drm.dev)->device;
+}
+
+static inline struct ivpu_device *to_ivpu_device(struct drm_device *dev)
+{
+	return container_of(dev, struct ivpu_device, drm);
+}
+
+static inline u32 ivpu_get_context_count(struct ivpu_device *vdev)
+{
+	struct xa_limit ctx_limit = vdev->context_xa_limit;
+
+	return (ctx_limit.max - ctx_limit.min + 1);
+}
+
+static inline u32 ivpu_get_platform(struct ivpu_device *vdev)
+{
+	WARN_ON_ONCE(vdev->platform == IVPU_PLATFORM_INVALID);
+	return vdev->platform;
+}
+
+static inline bool ivpu_is_silicon(struct ivpu_device *vdev)
+{
+	return ivpu_get_platform(vdev) == IVPU_PLATFORM_SILICON;
+}
+
+static inline bool ivpu_is_simics(struct ivpu_device *vdev)
+{
+	return ivpu_get_platform(vdev) == IVPU_PLATFORM_SIMICS;
+}
+
+static inline bool ivpu_is_fpga(struct ivpu_device *vdev)
+{
+	return ivpu_get_platform(vdev) == IVPU_PLATFORM_FPGA;
+}
+
+#endif /* __IVPU_DRV_H__ */

drivers/accel/ivpu/ivpu_hw.h

+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2020-2023 Intel Corporation
+ */
+
+#ifndef __IVPU_HW_H__
+#define __IVPU_HW_H__
+
+#include "ivpu_drv.h"
+
+struct ivpu_hw_ops {
+	int (*info_init)(struct ivpu_device *vdev);
+	int (*power_up)(struct ivpu_device *vdev);
+	int (*boot_fw)(struct ivpu_device *vdev);
+	int (*power_down)(struct ivpu_device *vdev);
+	bool (*is_idle)(struct ivpu_device *vdev);
+	void (*wdt_disable)(struct ivpu_device *vdev);
+	void (*diagnose_failure)(struct ivpu_device *vdev);
+	u32 (*reg_pll_freq_get)(struct ivpu_device *vdev);
+	u32 (*reg_telemetry_offset_get)(struct ivpu_device *vdev);
+	u32 (*reg_telemetry_size_get)(struct ivpu_device *vdev);
+	u32 (*reg_telemetry_enable_get)(struct ivpu_device *vdev);
+	void (*reg_db_set)(struct ivpu_device *vdev, u32 db_id);
+	u32 (*reg_ipc_rx_addr_get)(struct ivpu_device *vdev);
+	u32 (*reg_ipc_rx_count_get)(struct ivpu_device *vdev);
+	void (*reg_ipc_tx_set)(struct ivpu_device *vdev, u32 vpu_addr);
+	void (*irq_clear)(struct ivpu_device *vdev);
+	void (*irq_enable)(struct ivpu_device *vdev);
+	void (*irq_disable)(struct ivpu_device *vdev);
+	irqreturn_t (*irq_handler)(int irq, void *ptr);
+};
+
+struct ivpu_addr_range {
+	resource_size_t start;
+	resource_size_t end;
+};
+
+struct ivpu_hw_info {
+	const struct ivpu_hw_ops *ops;
+	struct {
+		struct ivpu_addr_range global_low;
+		struct ivpu_addr_range global_high;
+		struct ivpu_addr_range user_low;
+		struct ivpu_addr_range user_high;
+		struct ivpu_addr_range global_aliased_pio;
+	} ranges;
+	struct {
+		u8 min_ratio;
+		u8 max_ratio;
+		/*
+		 * Pll ratio for the efficiency frequency. The VPU has optimum
+		 * performance to power ratio at this frequency.
+		 */
+		u8 pn_ratio;
+		u32 profiling_freq;
+	} pll;
+	u32 tile_fuse;
+	u32 sku;
+	u16 config;
+};
+
+extern const struct ivpu_hw_ops ivpu_hw_mtl_ops;
+
+static inline int ivpu_hw_info_init(struct ivpu_device *vdev)
+{
+	return vdev->hw->ops->info_init(vdev);
+};
+
+static inline int ivpu_hw_power_up(struct ivpu_device *vdev)
+{
+	ivpu_dbg(vdev, PM, "HW power up\n");
+
+	return vdev->hw->ops->power_up(vdev);
+};
+
+static inline int ivpu_hw_boot_fw(struct ivpu_device *vdev)
+{
+	return vdev->hw->ops->boot_fw(vdev);
+};
+
+static inline bool ivpu_hw_is_idle(struct ivpu_device *vdev)
+{
+	return vdev->hw->ops->is_idle(vdev);
+};
+
+static inline int ivpu_hw_power_down(struct ivpu_device *vdev)
+{
+	ivpu_dbg(vdev, PM, "HW power down\n");
+
+	return vdev->hw->ops->power_down(vdev);
+};
+
+static inline void ivpu_hw_wdt_disable(struct ivpu_device *vdev)
+{
+	vdev->hw->ops->wdt_disable(vdev);
+};
+
+/* Register indirect accesses */
+static inline u32 ivpu_hw_reg_pll_freq_get(struct ivpu_device *vdev)
+{
+	return vdev->hw->ops->reg_pll_freq_get(vdev);
+};
+
+static inline u32 ivpu_hw_reg_telemetry_offset_get(struct ivpu_device *vdev)
+{
+	return vdev->hw->ops->reg_telemetry_offset_get(vdev);
+};
+
+static inline u32 ivpu_hw_reg_telemetry_size_get(struct ivpu_device *vdev)
+{
+	return vdev->hw->ops->reg_telemetry_size_get(vdev);
+};
+
+static inline u32 ivpu_hw_reg_telemetry_enable_get(struct ivpu_device *vdev)
+{
+	return vdev->hw->ops->reg_telemetry_enable_get(vdev);
+};
+
+static inline void ivpu_hw_reg_db_set(struct ivpu_device *vdev, u32 db_id)
+{
+	vdev->hw->ops->reg_db_set(vdev, db_id);
+};
+
+static inline u32 ivpu_hw_reg_ipc_rx_addr_get(struct ivpu_device *vdev)
+{
+	return vdev->hw->ops->reg_ipc_rx_addr_get(vdev);
+};
+
+static inline u32 ivpu_hw_reg_ipc_rx_count_get(struct ivpu_device *vdev)
+{
+	return vdev->hw->ops->reg_ipc_rx_count_get(vdev);
+};
+
+static inline void ivpu_hw_reg_ipc_tx_set(struct ivpu_device *vdev, u32 vpu_addr)
+{
+	vdev->hw->ops->reg_ipc_tx_set(vdev, vpu_addr);
+};
+
+static inline void ivpu_hw_irq_clear(struct ivpu_device *vdev)
+{
+	vdev->hw->ops->irq_clear(vdev);
+};
+
+static inline void ivpu_hw_irq_enable(struct ivpu_device *vdev)
+{
+	vdev->hw->ops->irq_enable(vdev);
+};
+
+static inline void ivpu_hw_irq_disable(struct ivpu_device *vdev)
+{
+	vdev->hw->ops->irq_disable(vdev);
+};
+
+static inline void ivpu_hw_init_range(struct ivpu_addr_range *range, u64 start, u64 size)
+{
+	range->start = start;
+	range->end = start + size;
+}
+
+static inline u64 ivpu_hw_range_size(const struct ivpu_addr_range *range)
+{
+	return range->end - range->start;
+}
+
+static inline void ivpu_hw_diagnose_failure(struct ivpu_device *vdev)
+{
+	vdev->hw->ops->diagnose_failure(vdev);
+}
+
+#endif /* __IVPU_HW_H__ */

drivers/accel/ivpu/ivpu_hw_mtl.c

+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2020-2023 Intel Corporation
+ */
+
+#include "ivpu_drv.h"
+#include "ivpu_hw_mtl_reg.h"
+#include "ivpu_hw_reg_io.h"
+#include "ivpu_hw.h"
+
+#define TILE_FUSE_ENABLE_BOTH	     0x0
+#define TILE_FUSE_ENABLE_UPPER	     0x1
+#define TILE_FUSE_ENABLE_LOWER	     0x2
+
+#define TILE_SKU_BOTH_MTL	     0x3630
+#define TILE_SKU_LOWER_MTL	     0x3631
+#define TILE_SKU_UPPER_MTL	     0x3632
+
+/* Work point configuration values */
+#define WP_CONFIG_1_TILE_5_3_RATIO   0x0101
+#define WP_CONFIG_1_TILE_4_3_RATIO   0x0102
+#define WP_CONFIG_2_TILE_5_3_RATIO   0x0201
+#define WP_CONFIG_2_TILE_4_3_RATIO   0x0202
+#define WP_CONFIG_0_TILE_PLL_OFF     0x0000
+
+#define PLL_REF_CLK_FREQ	     (50 * 1000000)
+#define PLL_SIMULATION_FREQ	     (10 * 1000000)
+#define PLL_RATIO_TO_FREQ(x)	     ((x) * PLL_REF_CLK_FREQ)
+#define PLL_DEFAULT_EPP_VALUE	     0x80
+
+#define TIM_SAFE_ENABLE		     0xf1d0dead
+#define TIM_WATCHDOG_RESET_VALUE     0xffffffff
+
+#define TIMEOUT_US		     (150 * USEC_PER_MSEC)
+#define PWR_ISLAND_STATUS_TIMEOUT_US (5 * USEC_PER_MSEC)
+#define PLL_TIMEOUT_US		     (1500 * USEC_PER_MSEC)
+#define IDLE_TIMEOUT_US		     (500 * USEC_PER_MSEC)
+
+#define ICB_0_IRQ_MASK ((REG_FLD(MTL_VPU_HOST_SS_ICB_STATUS_0, HOST_IPC_FIFO_INT)) | \
+			(REG_FLD(MTL_VPU_HOST_SS_ICB_STATUS_0, MMU_IRQ_0_INT)) | \
+			(REG_FLD(MTL_VPU_HOST_SS_ICB_STATUS_0, MMU_IRQ_1_INT)) | \
+			(REG_FLD(MTL_VPU_HOST_SS_ICB_STATUS_0, MMU_IRQ_2_INT)) | \
+			(REG_FLD(MTL_VPU_HOST_SS_ICB_STATUS_0, NOC_FIREWALL_INT)) | \
+			(REG_FLD(MTL_VPU_HOST_SS_ICB_STATUS_0, CPU_INT_REDIRECT_0_INT)) | \
+			(REG_FLD(MTL_VPU_HOST_SS_ICB_STATUS_0, CPU_INT_REDIRECT_1_INT)))
+
+#define ICB_1_IRQ_MASK ((REG_FLD(MTL_VPU_HOST_SS_ICB_STATUS_1, CPU_INT_REDIRECT_2_INT)) | \
+			(REG_FLD(MTL_VPU_HOST_SS_ICB_STATUS_1, CPU_INT_REDIRECT_3_INT)) | \
+			(REG_FLD(MTL_VPU_HOST_SS_ICB_STATUS_1, CPU_INT_REDIRECT_4_INT)))
+
+#define ICB_0_1_IRQ_MASK ((((u64)ICB_1_IRQ_MASK) << 32) | ICB_0_IRQ_MASK)
+
+#define BUTTRESS_IRQ_MASK ((REG_FLD(MTL_BUTTRESS_INTERRUPT_STAT, FREQ_CHANGE)) | \
+			   (REG_FLD(MTL_BUTTRESS_INTERRUPT_STAT, ATS_ERR)) | \
+			   (REG_FLD(MTL_BUTTRESS_INTERRUPT_STAT, UFI_ERR)))
+
+#define BUTTRESS_IRQ_ENABLE_MASK ((u32)~BUTTRESS_IRQ_MASK)
+#define BUTTRESS_IRQ_DISABLE_MASK ((u32)-1)
+
+#define ITF_FIREWALL_VIOLATION_MASK ((REG_FLD(MTL_VPU_HOST_SS_FW_SOC_IRQ_EN, CSS_ROM_CMX)) | \
+				     (REG_FLD(MTL_VPU_HOST_SS_FW_SOC_IRQ_EN, CSS_DBG)) | \
+				     (REG_FLD(MTL_VPU_HOST_SS_FW_SOC_IRQ_EN, CSS_CTRL)) | \
+				     (REG_FLD(MTL_VPU_HOST_SS_FW_SOC_IRQ_EN, DEC400)) | \
+				     (REG_FLD(MTL_VPU_HOST_SS_FW_SOC_IRQ_EN, MSS_NCE)) | \
+				     (REG_FLD(MTL_VPU_HOST_SS_FW_SOC_IRQ_EN, MSS_MBI)) | \
+				     (REG_FLD(MTL_VPU_HOST_SS_FW_SOC_IRQ_EN, MSS_MBI_CMX)))
+
+static char *ivpu_platform_to_str(u32 platform)
+{
+	switch (platform) {
+	case IVPU_PLATFORM_SILICON:
+		return "IVPU_PLATFORM_SILICON";
+	case IVPU_PLATFORM_SIMICS:
+		return "IVPU_PLATFORM_SIMICS";
+	case IVPU_PLATFORM_FPGA:
+		return "IVPU_PLATFORM_FPGA";
+	default:
+		return "Invalid platform";
+	}
+}
+
+static void ivpu_hw_read_platform(struct ivpu_device *vdev)
+{
+	u32 gen_ctrl = REGV_RD32(MTL_VPU_HOST_SS_GEN_CTRL);
+	u32 platform = REG_GET_FLD(MTL_VPU_HOST_SS_GEN_CTRL, PS, gen_ctrl);
+
+	if  (platform == IVPU_PLATFORM_SIMICS || platform == IVPU_PLATFORM_FPGA)
+		vdev->platform = platform;
+	else
+		vdev->platform = IVPU_PLATFORM_SILICON;
+
+	ivpu_dbg(vdev, MISC, "Platform type: %s (%d)\n",
+		 ivpu_platform_to_str(vdev->platform), vdev->platform);
+}
+
+static void ivpu_hw_wa_init(struct ivpu_device *vdev)
+{
+	vdev->wa.punit_disabled = ivpu_is_fpga(vdev);
+	vdev->wa.clear_runtime_mem = false;
+}
+
+static void ivpu_hw_timeouts_init(struct ivpu_device *vdev)
+{
+	if (ivpu_is_simics(vdev) || ivpu_is_fpga(vdev)) {
+		vdev->timeout.boot = 100000;
+		vdev->timeout.jsm = 50000;
+		vdev->timeout.tdr = 2000000;
+		vdev->timeout.reschedule_suspend = 1000;
+	} else {
+		vdev->timeout.boot = 1000;
+		vdev->timeout.jsm = 500;
+		vdev->timeout.tdr = 2000;
+		vdev->timeout.reschedule_suspend = 10;
+	}
+}
+
+static int ivpu_pll_wait_for_cmd_send(struct ivpu_device *vdev)
+{
+	return REGB_POLL_FLD(MTL_BUTTRESS_WP_REQ_CMD, SEND, 0, PLL_TIMEOUT_US);
+}
+
+/* Send KMD initiated workpoint change */
+static int ivpu_pll_cmd_send(struct ivpu_device *vdev, u16 min_ratio, u16 max_ratio,
+			     u16 target_ratio, u16 config)
+{
+	int ret;
+	u32 val;
+
+	ret = ivpu_pll_wait_for_cmd_send(vdev);
+	if (ret) {
+		ivpu_err(vdev, "Failed to sync before WP request: %d\n", ret);
+		return ret;
+	}
+
+	val = REGB_RD32(MTL_BUTTRESS_WP_REQ_PAYLOAD0);
+	val = REG_SET_FLD_NUM(MTL_BUTTRESS_WP_REQ_PAYLOAD0, MIN_RATIO, min_ratio, val);
+	val = REG_SET_FLD_NUM(MTL_BUTTRESS_WP_REQ_PAYLOAD0, MAX_RATIO, max_ratio, val);
+	REGB_WR32(MTL_BUTTRESS_WP_REQ_PAYLOAD0, val);
+
+	val = REGB_RD32(MTL_BUTTRESS_WP_REQ_PAYLOAD1);
+	val = REG_SET_FLD_NUM(MTL_BUTTRESS_WP_REQ_PAYLOAD1, TARGET_RATIO, target_ratio, val);
+	val = REG_SET_FLD_NUM(MTL_BUTTRESS_WP_REQ_PAYLOAD1, EPP, PLL_DEFAULT_EPP_VALUE, val);
+	REGB_WR32(MTL_BUTTRESS_WP_REQ_PAYLOAD1, val);
+
+	val = REGB_RD32(MTL_BUTTRESS_WP_REQ_PAYLOAD2);
+	val = REG_SET_FLD_NUM(MTL_BUTTRESS_WP_REQ_PAYLOAD2, CONFIG, config, val);
+	REGB_WR32(MTL_BUTTRESS_WP_REQ_PAYLOAD2, val);
+
+	val = REGB_RD32(MTL_BUTTRESS_WP_REQ_CMD);
+	val = REG_SET_FLD(MTL_BUTTRESS_WP_REQ_CMD, SEND, val);
+	REGB_WR32(MTL_BUTTRESS_WP_REQ_CMD, val);
+
+	ret = ivpu_pll_wait_for_cmd_send(vdev);
+	if (ret)
+		ivpu_err(vdev, "Failed to sync after WP request: %d\n", ret);
+
+	return ret;
+}
+
+static int ivpu_pll_wait_for_lock(struct ivpu_device *vdev, bool enable)
+{
+	u32 exp_val = enable ? 0x1 : 0x0;
+
+	if (IVPU_WA(punit_disabled))
+		return 0;
+
+	return REGB_POLL_FLD(MTL_BUTTRESS_PLL_STATUS, LOCK, exp_val, PLL_TIMEOUT_US);
+}
+
+static int ivpu_pll_wait_for_status_ready(struct ivpu_device *vdev)
+{
+	if (IVPU_WA(punit_disabled))
+		return 0;
+
+	return REGB_POLL_FLD(MTL_BUTTRESS_VPU_STATUS, READY, 1, PLL_TIMEOUT_US);
+}
+
+static void ivpu_pll_init_frequency_ratios(struct ivpu_device *vdev)
+{
+	struct ivpu_hw_info *hw = vdev->hw;
+	u8 fuse_min_ratio, fuse_max_ratio, fuse_pn_ratio;
+	u32 fmin_fuse, fmax_fuse;
+
+	fmin_fuse = REGB_RD32(MTL_BUTTRESS_FMIN_FUSE);
+	fuse_min_ratio = REG_GET_FLD(MTL_BUTTRESS_FMIN_FUSE, MIN_RATIO, fmin_fuse);
+	fuse_pn_ratio = REG_GET_FLD(MTL_BUTTRESS_FMIN_FUSE, PN_RATIO, fmin_fuse);
+
+	fmax_fuse = REGB_RD32(MTL_BUTTRESS_FMAX_FUSE);
+	fuse_max_ratio = REG_GET_FLD(MTL_BUTTRESS_FMAX_FUSE, MAX_RATIO, fmax_fuse);
+
+	hw->pll.min_ratio = clamp_t(u8, ivpu_pll_min_ratio, fuse_min_ratio, fuse_max_ratio);
+	hw->pll.max_ratio = clamp_t(u8, ivpu_pll_max_ratio, hw->pll.min_ratio, fuse_max_ratio);
+	hw->pll.pn_ratio = clamp_t(u8, fuse_pn_ratio, hw->pll.min_ratio, hw->pll.max_ratio);
+}
+
+static int ivpu_pll_drive(struct ivpu_device *vdev, bool enable)
+{
+	struct ivpu_hw_info *hw = vdev->hw;
+	u16 target_ratio;
+	u16 config;
+	int ret;
+
+	if (IVPU_WA(punit_disabled)) {
+		ivpu_dbg(vdev, PM, "Skipping PLL request on %s\n",
+			 ivpu_platform_to_str(vdev->platform));
+		return 0;
+	}
+
+	if (enable) {
+		target_ratio = hw->pll.pn_ratio;
+		config = hw->config;
+	} else {
+		target_ratio = 0;
+		config = 0;
+	}
+
+	ivpu_dbg(vdev, PM, "PLL workpoint request: %d Hz\n", PLL_RATIO_TO_FREQ(target_ratio));
+
+	ret = ivpu_pll_cmd_send(vdev, hw->pll.min_ratio, hw->pll.max_ratio, target_ratio, config);
+	if (ret) {
+		ivpu_err(vdev, "Failed to send PLL workpoint request: %d\n", ret);
+		return ret;
+	}
+
+	ret = ivpu_pll_wait_for_lock(vdev, enable);
+	if (ret) {
+		ivpu_err(vdev, "Timed out waiting for PLL lock\n");
+		return ret;
+	}
+
+	if (enable) {
+		ret = ivpu_pll_wait_for_status_ready(vdev);
+		if (ret) {
+			ivpu_err(vdev, "Timed out waiting for PLL ready status\n");
+			return ret;
+		}
+	}
+
+	return 0;
+}
+
+static int ivpu_pll_enable(struct ivpu_device *vdev)
+{
+	return ivpu_pll_drive(vdev, true);
+}
+
+static int ivpu_pll_disable(struct ivpu_device *vdev)
+{
+	return ivpu_pll_drive(vdev, false);
+}
+
+static void ivpu_boot_host_ss_rst_clr_assert(struct ivpu_device *vdev)
+{
+	u32 val = REGV_RD32(MTL_VPU_HOST_SS_CPR_RST_CLR);
+
+	val = REG_SET_FLD(MTL_VPU_HOST_SS_CPR_RST_CLR, TOP_NOC, val);
+	val = REG_SET_FLD(MTL_VPU_HOST_SS_CPR_RST_CLR, DSS_MAS, val);
+	val = REG_SET_FLD(MTL_VPU_HOST_SS_CPR_RST_CLR, MSS_MAS, val);
+
+	REGV_WR32(MTL_VPU_HOST_SS_CPR_RST_CLR, val);
+}
+
+static void ivpu_boot_host_ss_rst_drive(struct ivpu_device *vdev, bool enable)
+{
+	u32 val = REGV_RD32(MTL_VPU_HOST_SS_CPR_RST_SET);
+
+	if (enable) {
+		val = REG_SET_FLD(MTL_VPU_HOST_SS_CPR_RST_SET, TOP_NOC, val);
+		val = REG_SET_FLD(MTL_VPU_HOST_SS_CPR_RST_SET, DSS_MAS, val);
+		val = REG_SET_FLD(MTL_VPU_HOST_SS_CPR_RST_SET, MSS_MAS, val);
+	} else {
+		val = REG_CLR_FLD(MTL_VPU_HOST_SS_CPR_RST_SET, TOP_NOC, val);
+		val = REG_CLR_FLD(MTL_VPU_HOST_SS_CPR_RST_SET, DSS_MAS, val);
+		val = REG_CLR_FLD(MTL_VPU_HOST_SS_CPR_RST_SET, MSS_MAS, val);
+	}
+
+	REGV_WR32(MTL_VPU_HOST_SS_CPR_RST_SET, val);
+}
+
+static void ivpu_boot_host_ss_clk_drive(struct ivpu_device *vdev, bool enable)
+{
+	u32 val = REGV_RD32(MTL_VPU_HOST_SS_CPR_CLK_SET);
+
+	if (enable) {
+		val = REG_SET_FLD(MTL_VPU_HOST_SS_CPR_CLK_SET, TOP_NOC, val);
+		val = REG_SET_FLD(MTL_VPU_HOST_SS_CPR_CLK_SET, DSS_MAS, val);
+		val = REG_SET_FLD(MTL_VPU_HOST_SS_CPR_CLK_SET, MSS_MAS, val);
+	} else {
+		val = REG_CLR_FLD(MTL_VPU_HOST_SS_CPR_CLK_SET, TOP_NOC, val);
+		val = REG_CLR_FLD(MTL_VPU_HOST_SS_CPR_CLK_SET, DSS_MAS, val);
+		val = REG_CLR_FLD(MTL_VPU_HOST_SS_CPR_CLK_SET, MSS_MAS, val);
+	}
+
+	REGV_WR32(MTL_VPU_HOST_SS_CPR_CLK_SET, val);
+}
+
+static int ivpu_boot_noc_qreqn_check(struct ivpu_device *vdev, u32 exp_val)
+{
+	u32 val = REGV_RD32(MTL_VPU_HOST_SS_NOC_QREQN);
+
+	if (!REG_TEST_FLD_NUM(MTL_VPU_HOST_SS_NOC_QREQN, TOP_SOCMMIO, exp_val, val))
+		return -EIO;
+
+	return 0;
+}
+
+static int ivpu_boot_noc_qacceptn_check(struct ivpu_device *vdev, u32 exp_val)
+{
+	u32 val = REGV_RD32(MTL_VPU_HOST_SS_NOC_QACCEPTN);
+
+	if (!REG_TEST_FLD_NUM(MTL_VPU_HOST_SS_NOC_QACCEPTN, TOP_SOCMMIO, exp_val, val))
+		return -EIO;
+
+	return 0;
+}
+
+static int ivpu_boot_noc_qdeny_check(struct ivpu_device *vdev, u32 exp_val)
+{
+	u32 val = REGV_RD32(MTL_VPU_HOST_SS_NOC_QDENY);
+
+	if (!REG_TEST_FLD_NUM(MTL_VPU_HOST_SS_NOC_QDENY, TOP_SOCMMIO, exp_val, val))
+		return -EIO;
+
+	return 0;
+}
+
+static int ivpu_boot_top_noc_qrenqn_check(struct ivpu_device *vdev, u32 exp_val)
+{
+	u32 val = REGV_RD32(MTL_VPU_TOP_NOC_QREQN);
+
+	if (!REG_TEST_FLD_NUM(MTL_VPU_TOP_NOC_QREQN, CPU_CTRL, exp_val, val) ||
+	    !REG_TEST_FLD_NUM(MTL_VPU_TOP_NOC_QREQN, HOSTIF_L2CACHE, exp_val, val))
+		return -EIO;
+
+	return 0;
+}
+
+static int ivpu_boot_top_noc_qacceptn_check(struct ivpu_device *vdev, u32 exp_val)
+{
+	u32 val = REGV_RD32(MTL_VPU_TOP_NOC_QACCEPTN);
+
+	if (!REG_TEST_FLD_NUM(MTL_VPU_TOP_NOC_QACCEPTN, CPU_CTRL, exp_val, val) ||
+	    !REG_TEST_FLD_NUM(MTL_VPU_TOP_NOC_QACCEPTN, HOSTIF_L2CACHE, exp_val, val))
+		return -EIO;
+
+	return 0;
+}
+
+static int ivpu_boot_top_noc_qdeny_check(struct ivpu_device *vdev, u32 exp_val)
+{
+	u32 val = REGV_RD32(MTL_VPU_TOP_NOC_QDENY);
+
+	if (!REG_TEST_FLD_NUM(MTL_VPU_TOP_NOC_QDENY, CPU_CTRL, exp_val, val) ||
+	    !REG_TEST_FLD_NUM(MTL_VPU_TOP_NOC_QDENY, HOSTIF_L2CACHE, exp_val, val))
+		return -EIO;
+
+	return 0;
+}
+
+static int ivpu_boot_host_ss_configure(struct ivpu_device *vdev)
+{
+	ivpu_boot_host_ss_rst_clr_assert(vdev);
+
+	return ivpu_boot_noc_qreqn_check(vdev, 0x0);
+}
+
+static void ivpu_boot_vpu_idle_gen_disable(struct ivpu_device *vdev)
+{
+	REGV_WR32(MTL_VPU_HOST_SS_AON_VPU_IDLE_GEN, 0x0);
+}
+
+static int ivpu_boot_host_ss_axi_drive(struct ivpu_device *vdev, bool enable)
+{
+	int ret;
+	u32 val;
+
+	val = REGV_RD32(MTL_VPU_HOST_SS_NOC_QREQN);
+	if (enable)
+		val = REG_SET_FLD(MTL_VPU_HOST_SS_NOC_QREQN, TOP_SOCMMIO, val);
+	else
+		val = REG_CLR_FLD(MTL_VPU_HOST_SS_NOC_QREQN, TOP_SOCMMIO, val);
+	REGV_WR32(MTL_VPU_HOST_SS_NOC_QREQN, val);
+
+	ret = ivpu_boot_noc_qacceptn_check(vdev, enable ? 0x1 : 0x0);
+	if (ret) {
+		ivpu_err(vdev, "Failed qacceptn check: %d\n", ret);
+		return ret;
+	}
+
+	ret = ivpu_boot_noc_qdeny_check(vdev, 0x0);
+	if (ret)
+		ivpu_err(vdev, "Failed qdeny check: %d\n", ret);
+
+	return ret;
+}
+
+static int ivpu_boot_host_ss_axi_enable(struct ivpu_device *vdev)
+{
+	return ivpu_boot_host_ss_axi_drive(vdev, true);
+}
+
+static int ivpu_boot_host_ss_axi_disable(struct ivpu_device *vdev)
+{
+	return ivpu_boot_host_ss_axi_drive(vdev, false);
+}
+
+static int ivpu_boot_host_ss_top_noc_drive(struct ivpu_device *vdev, bool enable)
+{
+	int ret;
+	u32 val;
+
+	val = REGV_RD32(MTL_VPU_TOP_NOC_QREQN);
+	if (enable) {
+		val = REG_SET_FLD(MTL_VPU_TOP_NOC_QREQN, CPU_CTRL, val);
+		val = REG_SET_FLD(MTL_VPU_TOP_NOC_QREQN, HOSTIF_L2CACHE, val);
+	} else {
+		val = REG_CLR_FLD(MTL_VPU_TOP_NOC_QREQN, CPU_CTRL, val);
+		val = REG_CLR_FLD(MTL_VPU_TOP_NOC_QREQN, HOSTIF_L2CACHE, val);
+	}
+	REGV_WR32(MTL_VPU_TOP_NOC_QREQN, val);
+
+	ret = ivpu_boot_top_noc_qacceptn_check(vdev, enable ? 0x1 : 0x0);
+	if (ret) {
+		ivpu_err(vdev, "Failed qacceptn check: %d\n", ret);
+		return ret;
+	}
+
+	ret = ivpu_boot_top_noc_qdeny_check(vdev, 0x0);
+	if (ret)
+		ivpu_err(vdev, "Failed qdeny check: %d\n", ret);
+
+	return ret;
+}
+
+static int ivpu_boot_host_ss_top_noc_enable(struct ivpu_device *vdev)
+{
+	return ivpu_boot_host_ss_top_noc_drive(vdev, true);
+}
+
+static int ivpu_boot_host_ss_top_noc_disable(struct ivpu_device *vdev)
+{
+	return ivpu_boot_host_ss_top_noc_drive(vdev, false);
+}
+
+static void ivpu_boot_pwr_island_trickle_drive(struct ivpu_device *vdev, bool enable)
+{
+	u32 val = REGV_RD32(MTL_VPU_HOST_SS_AON_PWR_ISLAND_TRICKLE_EN0);
+
+	if (enable)
+		val = REG_SET_FLD(MTL_VPU_HOST_SS_AON_PWR_ISLAND_TRICKLE_EN0, MSS_CPU, val);
+	else
+		val = REG_CLR_FLD(MTL_VPU_HOST_SS_AON_PWR_ISLAND_TRICKLE_EN0, MSS_CPU, val);
+
+	REGV_WR32(MTL_VPU_HOST_SS_AON_PWR_ISLAND_TRICKLE_EN0, val);
+}
+
+static void ivpu_boot_pwr_island_drive(struct ivpu_device *vdev, bool enable)
+{
+	u32 val = REGV_RD32(MTL_VPU_HOST_SS_AON_PWR_ISLAND_EN0);
+
+	if (enable)
+		val = REG_SET_FLD(MTL_VPU_HOST_SS_AON_PWR_ISLAND_EN0, MSS_CPU, val);
+	else
+		val = REG_CLR_FLD(MTL_VPU_HOST_SS_AON_PWR_ISLAND_EN0, MSS_CPU, val);
+
+	REGV_WR32(MTL_VPU_HOST_SS_AON_PWR_ISLAND_EN0, val);
+}
+
+static int ivpu_boot_wait_for_pwr_island_status(struct ivpu_device *vdev, u32 exp_val)
+{
+	/* FPGA model (UPF) is not power aware, skipped Power Island polling */
+	if (ivpu_is_fpga(vdev))
+		return 0;
+
+	return REGV_POLL_FLD(MTL_VPU_HOST_SS_AON_PWR_ISLAND_STATUS0, MSS_CPU,
+			     exp_val, PWR_ISLAND_STATUS_TIMEOUT_US);
+}
+
+static void ivpu_boot_pwr_island_isolation_drive(struct ivpu_device *vdev, bool enable)
+{
+	u32 val = REGV_RD32(MTL_VPU_HOST_SS_AON_PWR_ISO_EN0);
+
+	if (enable)
+		val = REG_SET_FLD(MTL_VPU_HOST_SS_AON_PWR_ISO_EN0, MSS_CPU, val);
+	else
+		val = REG_CLR_FLD(MTL_VPU_HOST_SS_AON_PWR_ISO_EN0, MSS_CPU, val);
+
+	REGV_WR32(MTL_VPU_HOST_SS_AON_PWR_ISO_EN0, val);
+}
+
+static void ivpu_boot_dpu_active_drive(struct ivpu_device *vdev, bool enable)
+{
+	u32 val = REGV_RD32(MTL_VPU_HOST_SS_AON_DPU_ACTIVE);
+
+	if (enable)
+		val = REG_SET_FLD(MTL_VPU_HOST_SS_AON_DPU_ACTIVE, DPU_ACTIVE, val);
+	else
+		val = REG_CLR_FLD(MTL_VPU_HOST_SS_AON_DPU_ACTIVE, DPU_ACTIVE, val);
+
+	REGV_WR32(MTL_VPU_HOST_SS_AON_DPU_ACTIVE, val);
+}
+
+static int ivpu_boot_pwr_domain_disable(struct ivpu_device *vdev)
+{
+	ivpu_boot_dpu_active_drive(vdev, false);
+	ivpu_boot_pwr_island_isolation_drive(vdev, true);
+	ivpu_boot_pwr_island_trickle_drive(vdev, false);
+	ivpu_boot_pwr_island_drive(vdev, false);
+
+	return ivpu_boot_wait_for_pwr_island_status(vdev, 0x0);
+}
+
+static int ivpu_boot_pwr_domain_enable(struct ivpu_device *vdev)
+{
+	int ret;
+
+	ivpu_boot_pwr_island_trickle_drive(vdev, true);
+	ivpu_boot_pwr_island_drive(vdev, true);
+
+	ret = ivpu_boot_wait_for_pwr_island_status(vdev, 0x1);
+	if (ret) {
+		ivpu_err(vdev, "Timed out waiting for power island status\n");
+		return ret;
+	}
+
+	ret = ivpu_boot_top_noc_qrenqn_check(vdev, 0x0);
+	if (ret) {
+		ivpu_err(vdev, "Failed qrenqn check %d\n", ret);
+		return ret;
+	}
+
+	ivpu_boot_host_ss_clk_drive(vdev, true);
+	ivpu_boot_pwr_island_isolation_drive(vdev, false);
+	ivpu_boot_host_ss_rst_drive(vdev, true);
+	ivpu_boot_dpu_active_drive(vdev, true);
+
+	return ret;
+}
+
+static void ivpu_boot_no_snoop_enable(struct ivpu_device *vdev)
+{
+	u32 val = REGV_RD32(MTL_VPU_HOST_IF_TCU_PTW_OVERRIDES);
+
+	val = REG_SET_FLD(MTL_VPU_HOST_IF_TCU_PTW_OVERRIDES, NOSNOOP_OVERRIDE_EN, val);
+	val = REG_SET_FLD(MTL_VPU_HOST_IF_TCU_PTW_OVERRIDES, AW_NOSNOOP_OVERRIDE, val);
+	val = REG_SET_FLD(MTL_VPU_HOST_IF_TCU_PTW_OVERRIDES, AR_NOSNOOP_OVERRIDE, val);
+
+	REGV_WR32(MTL_VPU_HOST_IF_TCU_PTW_OVERRIDES, val);
+}
+
+static void ivpu_boot_tbu_mmu_enable(struct ivpu_device *vdev)
+{
+	u32 val = REGV_RD32(MTL_VPU_HOST_IF_TBU_MMUSSIDV);
+
+	if (ivpu_is_fpga(vdev)) {
+		val = REG_SET_FLD(MTL_VPU_HOST_IF_TBU_MMUSSIDV, TBU0_AWMMUSSIDV, val);
+		val = REG_SET_FLD(MTL_VPU_HOST_IF_TBU_MMUSSIDV, TBU0_ARMMUSSIDV, val);
+		val = REG_SET_FLD(MTL_VPU_HOST_IF_TBU_MMUSSIDV, TBU2_AWMMUSSIDV, val);
+		val = REG_SET_FLD(MTL_VPU_HOST_IF_TBU_MMUSSIDV, TBU2_ARMMUSSIDV, val);
+	} else {
+		val = REG_SET_FLD(MTL_VPU_HOST_IF_TBU_MMUSSIDV, TBU0_AWMMUSSIDV, val);
+		val = REG_SET_FLD(MTL_VPU_HOST_IF_TBU_MMUSSIDV, TBU0_ARMMUSSIDV, val);
+		val = REG_SET_FLD(MTL_VPU_HOST_IF_TBU_MMUSSIDV, TBU1_AWMMUSSIDV, val);
+		val = REG_SET_FLD(MTL_VPU_HOST_IF_TBU_MMUSSIDV, TBU1_ARMMUSSIDV, val);
+		val = REG_SET_FLD(MTL_VPU_HOST_IF_TBU_MMUSSIDV, TBU2_AWMMUSSIDV, val);
+		val = REG_SET_FLD(MTL_VPU_HOST_IF_TBU_MMUSSIDV, TBU2_ARMMUSSIDV, val);
+		val = REG_SET_FLD(MTL_VPU_HOST_IF_TBU_MMUSSIDV, TBU3_AWMMUSSIDV, val);
+		val = REG_SET_FLD(MTL_VPU_HOST_IF_TBU_MMUSSIDV, TBU3_ARMMUSSIDV, val);
+	}
+
+	REGV_WR32(MTL_VPU_HOST_IF_TBU_MMUSSIDV, val);
+}
+
+static void ivpu_boot_soc_cpu_boot(struct ivpu_device *vdev)
+{
+	u32 val;
+
+	val = REGV_RD32(MTL_VPU_CPU_SS_MSSCPU_CPR_LEON_RT_VEC);
+	val = REG_SET_FLD(MTL_VPU_CPU_SS_MSSCPU_CPR_LEON_RT_VEC, IRQI_RSTRUN0, val);
+
+	val = REG_CLR_FLD(MTL_VPU_CPU_SS_MSSCPU_CPR_LEON_RT_VEC, IRQI_RSTVEC, val);
+	REGV_WR32(MTL_VPU_CPU_SS_MSSCPU_CPR_LEON_RT_VEC, val);
+
+	val = REG_SET_FLD(MTL_VPU_CPU_SS_MSSCPU_CPR_LEON_RT_VEC, IRQI_RESUME0, val);
+	REGV_WR32(MTL_VPU_CPU_SS_MSSCPU_CPR_LEON_RT_VEC, val);
+
+	val = REG_CLR_FLD(MTL_VPU_CPU_SS_MSSCPU_CPR_LEON_RT_VEC, IRQI_RESUME0, val);
+	REGV_WR32(MTL_VPU_CPU_SS_MSSCPU_CPR_LEON_RT_VEC, val);
+}
+
+static int ivpu_boot_d0i3_drive(struct ivpu_device *vdev, bool enable)
+{
+	int ret;
+	u32 val;
+
+	ret = REGB_POLL_FLD(MTL_BUTTRESS_VPU_D0I3_CONTROL, INPROGRESS, 0, TIMEOUT_US);
+	if (ret) {
+		ivpu_err(vdev, "Failed to sync before D0i3 tansition: %d\n", ret);
+		return ret;
+	}
+
+	val = REGB_RD32(MTL_BUTTRESS_VPU_D0I3_CONTROL);
+	if (enable)
+		val = REG_SET_FLD(MTL_BUTTRESS_VPU_D0I3_CONTROL, I3, val);
+	else
+		val = REG_CLR_FLD(MTL_BUTTRESS_VPU_D0I3_CONTROL, I3, val);
+	REGB_WR32(MTL_BUTTRESS_VPU_D0I3_CONTROL, val);
+
+	ret = REGB_POLL_FLD(MTL_BUTTRESS_VPU_D0I3_CONTROL, INPROGRESS, 0, TIMEOUT_US);
+	if (ret)
+		ivpu_err(vdev, "Failed to sync after D0i3 tansition: %d\n", ret);
+
+	return ret;
+}
+
+static int ivpu_hw_mtl_info_init(struct ivpu_device *vdev)
+{
+	struct ivpu_hw_info *hw = vdev->hw;
+	u32 tile_fuse;
+
+	tile_fuse = REGB_RD32(MTL_BUTTRESS_TILE_FUSE);
+	if (!REG_TEST_FLD(MTL_BUTTRESS_TILE_FUSE, VALID, tile_fuse))
+		ivpu_warn(vdev, "Tile Fuse: Invalid (0x%x)\n", tile_fuse);
+
+	hw->tile_fuse = REG_GET_FLD(MTL_BUTTRESS_TILE_FUSE, SKU, tile_fuse);
+	switch (hw->tile_fuse) {
+	case TILE_FUSE_ENABLE_LOWER:
+		hw->sku = TILE_SKU_LOWER_MTL;
+		hw->config = WP_CONFIG_1_TILE_5_3_RATIO;
+		ivpu_dbg(vdev, MISC, "Tile Fuse: Enable Lower\n");
+		break;
+	case TILE_FUSE_ENABLE_UPPER:
+		hw->sku = TILE_SKU_UPPER_MTL;
+		hw->config = WP_CONFIG_1_TILE_4_3_RATIO;
+		ivpu_dbg(vdev, MISC, "Tile Fuse: Enable Upper\n");
+		break;
+	case TILE_FUSE_ENABLE_BOTH:
+		hw->sku = TILE_SKU_BOTH_MTL;
+		hw->config = WP_CONFIG_2_TILE_5_3_RATIO;
+		ivpu_dbg(vdev, MISC, "Tile Fuse: Enable Both\n");
+		break;
+	default:
+		hw->config = WP_CONFIG_0_TILE_PLL_OFF;
+		ivpu_dbg(vdev, MISC, "Tile Fuse: Disable\n");
+		break;
+	}
+
+	ivpu_pll_init_frequency_ratios(vdev);
+
+	ivpu_hw_init_range(&hw->ranges.global_low, 0x80000000, SZ_512M);
+	ivpu_hw_init_range(&hw->ranges.global_high, 0x180000000, SZ_2M);
+	ivpu_hw_init_range(&hw->ranges.user_low, 0xc0000000, 255 * SZ_1M);
+	ivpu_hw_init_range(&hw->ranges.user_high, 0x180000000, SZ_2G);
+	hw->ranges.global_aliased_pio = hw->ranges.user_low;
+
+	return 0;
+}
+
+static int ivpu_hw_mtl_reset(struct ivpu_device *vdev)
+{
+	int ret;
+	u32 val;
+
+	if (IVPU_WA(punit_disabled))
+		return 0;
+
+	ret = REGB_POLL_FLD(MTL_BUTTRESS_VPU_IP_RESET, TRIGGER, 0, TIMEOUT_US);
+	if (ret) {
+		ivpu_err(vdev, "Timed out waiting for TRIGGER bit\n");
+		return ret;
+	}
+
+	val = REGB_RD32(MTL_BUTTRESS_VPU_IP_RESET);
+	val = REG_SET_FLD(MTL_BUTTRESS_VPU_IP_RESET, TRIGGER, val);
+	REGB_WR32(MTL_BUTTRESS_VPU_IP_RESET, val);
+
+	ret = REGB_POLL_FLD(MTL_BUTTRESS_VPU_IP_RESET, TRIGGER, 0, TIMEOUT_US);
+	if (ret)
+		ivpu_err(vdev, "Timed out waiting for RESET completion\n");
+
+	return ret;
+}
+
+static int ivpu_hw_mtl_d0i3_enable(struct ivpu_device *vdev)
+{
+	int ret;
+
+	ret = ivpu_boot_d0i3_drive(vdev, true);
+	if (ret)
+		ivpu_err(vdev, "Failed to enable D0i3: %d\n", ret);
+
+	udelay(5); /* VPU requires 5 us to complete the transition */
+
+	return ret;
+}
+
+static int ivpu_hw_mtl_d0i3_disable(struct ivpu_device *vdev)
+{
+	int ret;
+
+	ret = ivpu_boot_d0i3_drive(vdev, false);
+	if (ret)
+		ivpu_err(vdev, "Failed to disable D0i3: %d\n", ret);
+
+	return ret;
+}
+
+static int ivpu_hw_mtl_power_up(struct ivpu_device *vdev)
+{
+	int ret;
+
+	ivpu_hw_read_platform(vdev);
+	ivpu_hw_wa_init(vdev);
+	ivpu_hw_timeouts_init(vdev);
+
+	ret = ivpu_hw_mtl_reset(vdev);
+	if (ret)
+		ivpu_warn(vdev, "Failed to reset HW: %d\n", ret);
+
+	ret = ivpu_hw_mtl_d0i3_disable(vdev);
+	if (ret)
+		ivpu_warn(vdev, "Failed to disable D0I3: %d\n", ret);
+
+	ret = ivpu_pll_enable(vdev);
+	if (ret) {
+		ivpu_err(vdev, "Failed to enable PLL: %d\n", ret);
+		return ret;
+	}
+
+	ret = ivpu_boot_host_ss_configure(vdev);
+	if (ret) {
+		ivpu_err(vdev, "Failed to configure host SS: %d\n", ret);
+		return ret;
+	}
+
+	/*
+	 * The control circuitry for vpu_idle indication logic powers up active.
+	 * To ensure unnecessary low power mode signal from LRT during bring up,
+	 * KMD disables the circuitry prior to bringing up the Main Power island.
+	 */
+	ivpu_boot_vpu_idle_gen_disable(vdev);
+
+	ret = ivpu_boot_pwr_domain_enable(vdev);
+	if (ret) {
+		ivpu_err(vdev, "Failed to enable power domain: %d\n", ret);
+		return ret;
+	}
+
+	ret = ivpu_boot_host_ss_axi_enable(vdev);
+	if (ret) {
+		ivpu_err(vdev, "Failed to enable AXI: %d\n", ret);
+		return ret;
+	}
+
+	ret = ivpu_boot_host_ss_top_noc_enable(vdev);
+	if (ret)
+		ivpu_err(vdev, "Failed to enable TOP NOC: %d\n", ret);
+
+	return ret;
+}
+
+static int ivpu_hw_mtl_boot_fw(struct ivpu_device *vdev)
+{
+	ivpu_boot_no_snoop_enable(vdev);
+	ivpu_boot_tbu_mmu_enable(vdev);
+	ivpu_boot_soc_cpu_boot(vdev);
+
+	return 0;
+}
+
+static bool ivpu_hw_mtl_is_idle(struct ivpu_device *vdev)
+{
+	u32 val;
+
+	if (IVPU_WA(punit_disabled))
+		return true;
+
+	val = REGB_RD32(MTL_BUTTRESS_VPU_STATUS);
+	return REG_TEST_FLD(MTL_BUTTRESS_VPU_STATUS, READY, val) &&
+	       REG_TEST_FLD(MTL_BUTTRESS_VPU_STATUS, IDLE, val);
+}
+
+static int ivpu_hw_mtl_power_down(struct ivpu_device *vdev)
+{
+	int ret = 0;
+
+	/* FPGA requires manual clearing of IP_Reset bit by enabling quiescent state */
+	if (ivpu_is_fpga(vdev)) {
+		if (ivpu_boot_host_ss_top_noc_disable(vdev)) {
+			ivpu_err(vdev, "Failed to disable TOP NOC\n");
+			ret = -EIO;
+		}
+
+		if (ivpu_boot_host_ss_axi_disable(vdev)) {
+			ivpu_err(vdev, "Failed to disable AXI\n");
+			ret = -EIO;
+		}
+	}
+
+	if (ivpu_boot_pwr_domain_disable(vdev)) {
+		ivpu_err(vdev, "Failed to disable power domain\n");
+		ret = -EIO;
+	}
+
+	if (ivpu_pll_disable(vdev)) {
+		ivpu_err(vdev, "Failed to disable PLL\n");
+		ret = -EIO;
+	}
+
+	if (ivpu_hw_mtl_d0i3_enable(vdev))
+		ivpu_warn(vdev, "Failed to enable D0I3\n");
+
+	return ret;
+}
+
+static void ivpu_hw_mtl_wdt_disable(struct ivpu_device *vdev)
+{
+	u32 val;
+
+	/* Enable writing and set non-zero WDT value */
+	REGV_WR32(MTL_VPU_CPU_SS_TIM_SAFE, TIM_SAFE_ENABLE);
+	REGV_WR32(MTL_VPU_CPU_SS_TIM_WATCHDOG, TIM_WATCHDOG_RESET_VALUE);
+
+	/* Enable writing and disable watchdog timer */
+	REGV_WR32(MTL_VPU_CPU_SS_TIM_SAFE, TIM_SAFE_ENABLE);
+	REGV_WR32(MTL_VPU_CPU_SS_TIM_WDOG_EN, 0);
+
+	/* Now clear the timeout interrupt */
+	val = REGV_RD32(MTL_VPU_CPU_SS_TIM_GEN_CONFIG);
+	val = REG_CLR_FLD(MTL_VPU_CPU_SS_TIM_GEN_CONFIG, WDOG_TO_INT_CLR, val);
+	REGV_WR32(MTL_VPU_CPU_SS_TIM_GEN_CONFIG, val);
+}
+
+/* Register indirect accesses */
+static u32 ivpu_hw_mtl_reg_pll_freq_get(struct ivpu_device *vdev)
+{
+	u32 pll_curr_ratio;
+
+	pll_curr_ratio = REGB_RD32(MTL_BUTTRESS_CURRENT_PLL);
+	pll_curr_ratio &= MTL_BUTTRESS_CURRENT_PLL_RATIO_MASK;
+
+	if (!ivpu_is_silicon(vdev))
+		return PLL_SIMULATION_FREQ;
+
+	return PLL_RATIO_TO_FREQ(pll_curr_ratio);
+}
+
+static u32 ivpu_hw_mtl_reg_telemetry_offset_get(struct ivpu_device *vdev)
+{
+	return REGB_RD32(MTL_BUTTRESS_VPU_TELEMETRY_OFFSET);
+}
+
+static u32 ivpu_hw_mtl_reg_telemetry_size_get(struct ivpu_device *vdev)
+{
+	return REGB_RD32(MTL_BUTTRESS_VPU_TELEMETRY_SIZE);
+}
+
+static u32 ivpu_hw_mtl_reg_telemetry_enable_get(struct ivpu_device *vdev)
+{
+	return REGB_RD32(MTL_BUTTRESS_VPU_TELEMETRY_ENABLE);
+}
+
+static void ivpu_hw_mtl_reg_db_set(struct ivpu_device *vdev, u32 db_id)
+{
+	u32 reg_stride = MTL_VPU_CPU_SS_DOORBELL_1 - MTL_VPU_CPU_SS_DOORBELL_0;
+	u32 val = REG_FLD(MTL_VPU_CPU_SS_DOORBELL_0, SET);
+
+	REGV_WR32I(MTL_VPU_CPU_SS_DOORBELL_0, reg_stride, db_id, val);
+}
+
+static u32 ivpu_hw_mtl_reg_ipc_rx_addr_get(struct ivpu_device *vdev)
+{
+	return REGV_RD32(MTL_VPU_HOST_SS_TIM_IPC_FIFO_ATM);
+}
+
+static u32 ivpu_hw_mtl_reg_ipc_rx_count_get(struct ivpu_device *vdev)
+{
+	u32 count = REGV_RD32_SILENT(MTL_VPU_HOST_SS_TIM_IPC_FIFO_STAT);
+
+	return REG_GET_FLD(MTL_VPU_HOST_SS_TIM_IPC_FIFO_STAT, FILL_LEVEL, count);
+}
+
+static void ivpu_hw_mtl_reg_ipc_tx_set(struct ivpu_device *vdev, u32 vpu_addr)
+{
+	REGV_WR32(MTL_VPU_CPU_SS_TIM_IPC_FIFO, vpu_addr);
+}
+
+static void ivpu_hw_mtl_irq_clear(struct ivpu_device *vdev)
+{
+	REGV_WR64(MTL_VPU_HOST_SS_ICB_CLEAR_0, ICB_0_1_IRQ_MASK);
+}
+
+static void ivpu_hw_mtl_irq_enable(struct ivpu_device *vdev)
+{
+	REGV_WR32(MTL_VPU_HOST_SS_FW_SOC_IRQ_EN, ITF_FIREWALL_VIOLATION_MASK);
+	REGV_WR64(MTL_VPU_HOST_SS_ICB_ENABLE_0, ICB_0_1_IRQ_MASK);
+	REGB_WR32(MTL_BUTTRESS_LOCAL_INT_MASK, BUTTRESS_IRQ_ENABLE_MASK);
+	REGB_WR32(MTL_BUTTRESS_GLOBAL_INT_MASK, 0x0);
+}
+
+static void ivpu_hw_mtl_irq_disable(struct ivpu_device *vdev)
+{
+	REGB_WR32(MTL_BUTTRESS_GLOBAL_INT_MASK, 0x1);
+	REGB_WR32(MTL_BUTTRESS_LOCAL_INT_MASK, BUTTRESS_IRQ_DISABLE_MASK);
+	REGV_WR64(MTL_VPU_HOST_SS_ICB_ENABLE_0, 0x0ull);
+	REGB_WR32(MTL_VPU_HOST_SS_FW_SOC_IRQ_EN, 0x0);
+}
+
+static void ivpu_hw_mtl_irq_wdt_nce_handler(struct ivpu_device *vdev)
+{
+	ivpu_err_ratelimited(vdev, "WDT NCE irq\n");
+}
+
+static void ivpu_hw_mtl_irq_wdt_mss_handler(struct ivpu_device *vdev)
+{
+	ivpu_err_ratelimited(vdev, "WDT MSS irq\n");
+
+	ivpu_hw_wdt_disable(vdev);
+}
+
+static void ivpu_hw_mtl_irq_noc_firewall_handler(struct ivpu_device *vdev)
+{
+	ivpu_err_ratelimited(vdev, "NOC Firewall irq\n");
+}
+
+/* Handler for IRQs from VPU core (irqV) */
+static u32 ivpu_hw_mtl_irqv_handler(struct ivpu_device *vdev, int irq)
+{
+	u32 status = REGV_RD32(MTL_VPU_HOST_SS_ICB_STATUS_0) & ICB_0_IRQ_MASK;
+
+	REGV_WR32(MTL_VPU_HOST_SS_ICB_CLEAR_0, status);
+
+	if (REG_TEST_FLD(MTL_VPU_HOST_SS_ICB_STATUS_0, CPU_INT_REDIRECT_0_INT, status))
+		ivpu_hw_mtl_irq_wdt_mss_handler(vdev);
+
+	if (REG_TEST_FLD(MTL_VPU_HOST_SS_ICB_STATUS_0, CPU_INT_REDIRECT_1_INT, status))
+		ivpu_hw_mtl_irq_wdt_nce_handler(vdev);
+
+	if (REG_TEST_FLD(MTL_VPU_HOST_SS_ICB_STATUS_0, NOC_FIREWALL_INT, status))
+		ivpu_hw_mtl_irq_noc_firewall_handler(vdev);
+
+	return status;
+}
+
+/* Handler for IRQs from Buttress core (irqB) */
+static u32 ivpu_hw_mtl_irqb_handler(struct ivpu_device *vdev, int irq)
+{
+	u32 status = REGB_RD32(MTL_BUTTRESS_INTERRUPT_STAT) & BUTTRESS_IRQ_MASK;
+
+	if (status == 0)
+		return 0;
+
+	/* Disable global interrupt before handling local buttress interrupts */
+	REGB_WR32(MTL_BUTTRESS_GLOBAL_INT_MASK, 0x1);
+
+	if (REG_TEST_FLD(MTL_BUTTRESS_INTERRUPT_STAT, FREQ_CHANGE, status))
+		ivpu_dbg(vdev, IRQ, "FREQ_CHANGE irq: %08x", REGB_RD32(MTL_BUTTRESS_CURRENT_PLL));
+
+	if (REG_TEST_FLD(MTL_BUTTRESS_INTERRUPT_STAT, ATS_ERR, status)) {
+		ivpu_err(vdev, "ATS_ERR irq 0x%016llx", REGB_RD64(MTL_BUTTRESS_ATS_ERR_LOG_0));
+		REGB_WR32(MTL_BUTTRESS_ATS_ERR_CLEAR, 0x1);
+	}
+
+	if (REG_TEST_FLD(MTL_BUTTRESS_INTERRUPT_STAT, UFI_ERR, status)) {
+		u32 ufi_log = REGB_RD32(MTL_BUTTRESS_UFI_ERR_LOG);
+
+		ivpu_err(vdev, "UFI_ERR irq (0x%08x) opcode: 0x%02lx axi_id: 0x%02lx cq_id: 0x%03lx",
+			 ufi_log, REG_GET_FLD(MTL_BUTTRESS_UFI_ERR_LOG, OPCODE, ufi_log),
+			 REG_GET_FLD(MTL_BUTTRESS_UFI_ERR_LOG, AXI_ID, ufi_log),
+			 REG_GET_FLD(MTL_BUTTRESS_UFI_ERR_LOG, CQ_ID, ufi_log));
+		REGB_WR32(MTL_BUTTRESS_UFI_ERR_CLEAR, 0x1);
+	}
+
+	/*
+	 * Clear local interrupt status by writing 0 to all bits.
+	 * This must be done after interrupts are cleared at the source.
+	 * Writing 1 triggers an interrupt, so we can't perform read update write.
+	 */
+	REGB_WR32(MTL_BUTTRESS_INTERRUPT_STAT, 0x0);
+
+	/* Re-enable global interrupt */
+	REGB_WR32(MTL_BUTTRESS_GLOBAL_INT_MASK, 0x0);
+
+	return status;
+}
+
+static irqreturn_t ivpu_hw_mtl_irq_handler(int irq, void *ptr)
+{
+	struct ivpu_device *vdev = ptr;
+	u32 ret_irqv, ret_irqb;
+
+	ret_irqv = ivpu_hw_mtl_irqv_handler(vdev, irq);
+	ret_irqb = ivpu_hw_mtl_irqb_handler(vdev, irq);
+
+	return IRQ_RETVAL(ret_irqb | ret_irqv);
+}
+
+static void ivpu_hw_mtl_diagnose_failure(struct ivpu_device *vdev)
+{
+	u32 irqv = REGV_RD32(MTL_VPU_HOST_SS_ICB_STATUS_0) & ICB_0_IRQ_MASK;
+	u32 irqb = REGB_RD32(MTL_BUTTRESS_INTERRUPT_STAT) & BUTTRESS_IRQ_MASK;
+
+	if (ivpu_hw_mtl_reg_ipc_rx_count_get(vdev))
+		ivpu_err(vdev, "IPC FIFO queue not empty, missed IPC IRQ");
+
+	if (REG_TEST_FLD(MTL_VPU_HOST_SS_ICB_STATUS_0, CPU_INT_REDIRECT_0_INT, irqv))
+		ivpu_err(vdev, "WDT MSS timeout detected\n");
+
+	if (REG_TEST_FLD(MTL_VPU_HOST_SS_ICB_STATUS_0, CPU_INT_REDIRECT_1_INT, irqv))
+		ivpu_err(vdev, "WDT NCE timeout detected\n");
+
+	if (REG_TEST_FLD(MTL_VPU_HOST_SS_ICB_STATUS_0, NOC_FIREWALL_INT, irqv))
+		ivpu_err(vdev, "NOC Firewall irq detected\n");
+
+	if (REG_TEST_FLD(MTL_BUTTRESS_INTERRUPT_STAT, ATS_ERR, irqb))
+		ivpu_err(vdev, "ATS_ERR irq 0x%016llx", REGB_RD64(MTL_BUTTRESS_ATS_ERR_LOG_0));
+
+	if (REG_TEST_FLD(MTL_BUTTRESS_INTERRUPT_STAT, UFI_ERR, irqb)) {
+		u32 ufi_log = REGB_RD32(MTL_BUTTRESS_UFI_ERR_LOG);
+
+		ivpu_err(vdev, "UFI_ERR irq (0x%08x) opcode: 0x%02lx axi_id: 0x%02lx cq_id: 0x%03lx",
+			 ufi_log, REG_GET_FLD(MTL_BUTTRESS_UFI_ERR_LOG, OPCODE, ufi_log),
+			 REG_GET_FLD(MTL_BUTTRESS_UFI_ERR_LOG, AXI_ID, ufi_log),
+			 REG_GET_FLD(MTL_BUTTRESS_UFI_ERR_LOG, CQ_ID, ufi_log));
+	}
+}
+
+const struct ivpu_hw_ops ivpu_hw_mtl_ops = {
+	.info_init = ivpu_hw_mtl_info_init,
+	.power_up = ivpu_hw_mtl_power_up,
+	.is_idle = ivpu_hw_mtl_is_idle,
+	.power_down = ivpu_hw_mtl_power_down,
+	.boot_fw = ivpu_hw_mtl_boot_fw,
+	.wdt_disable = ivpu_hw_mtl_wdt_disable,
+	.diagnose_failure = ivpu_hw_mtl_diagnose_failure,
+	.reg_pll_freq_get = ivpu_hw_mtl_reg_pll_freq_get,
+	.reg_telemetry_offset_get = ivpu_hw_mtl_reg_telemetry_offset_get,
+	.reg_telemetry_size_get = ivpu_hw_mtl_reg_telemetry_size_get,
+	.reg_telemetry_enable_get = ivpu_hw_mtl_reg_telemetry_enable_get,
+	.reg_db_set = ivpu_hw_mtl_reg_db_set,
+	.reg_ipc_rx_addr_get = ivpu_hw_mtl_reg_ipc_rx_addr_get,
+	.reg_ipc_rx_count_get = ivpu_hw_mtl_reg_ipc_rx_count_get,
+	.reg_ipc_tx_set = ivpu_hw_mtl_reg_ipc_tx_set,
+	.irq_clear = ivpu_hw_mtl_irq_clear,
+	.irq_enable = ivpu_hw_mtl_irq_enable,
+	.irq_disable = ivpu_hw_mtl_irq_disable,
+	.irq_handler = ivpu_hw_mtl_irq_handler,
+};

drivers/accel/ivpu/ivpu_hw_mtl_reg.h

+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2020-2023 Intel Corporation
+ */
+
+#ifndef __IVPU_HW_MTL_REG_H__
+#define __IVPU_HW_MTL_REG_H__
+
+#include <linux/bits.h>
+
+#define MTL_BUTTRESS_INTERRUPT_TYPE					0x00000000u
+
+#define MTL_BUTTRESS_INTERRUPT_STAT					0x00000004u
+#define MTL_BUTTRESS_INTERRUPT_STAT_FREQ_CHANGE_MASK			BIT_MASK(0)
+#define MTL_BUTTRESS_INTERRUPT_STAT_ATS_ERR_MASK			BIT_MASK(1)
+#define MTL_BUTTRESS_INTERRUPT_STAT_UFI_ERR_MASK			BIT_MASK(2)
+
+#define MTL_BUTTRESS_WP_REQ_PAYLOAD0					0x00000008u
+#define MTL_BUTTRESS_WP_REQ_PAYLOAD0_MIN_RATIO_MASK			GENMASK(15, 0)
+#define MTL_BUTTRESS_WP_REQ_PAYLOAD0_MAX_RATIO_MASK			GENMASK(31, 16)
+
+#define MTL_BUTTRESS_WP_REQ_PAYLOAD1					0x0000000cu
+#define MTL_BUTTRESS_WP_REQ_PAYLOAD1_TARGET_RATIO_MASK			GENMASK(15, 0)
+#define MTL_BUTTRESS_WP_REQ_PAYLOAD1_EPP_MASK				GENMASK(31, 16)
+
+#define MTL_BUTTRESS_WP_REQ_PAYLOAD2					0x00000010u
+#define MTL_BUTTRESS_WP_REQ_PAYLOAD2_CONFIG_MASK			GENMASK(15, 0)
+
+#define MTL_BUTTRESS_WP_REQ_CMD						0x00000014u
+#define MTL_BUTTRESS_WP_REQ_CMD_SEND_MASK				BIT_MASK(0)
+
+#define MTL_BUTTRESS_WP_DOWNLOAD					0x00000018u
+#define MTL_BUTTRESS_WP_DOWNLOAD_TARGET_RATIO_MASK			GENMASK(15, 0)
+
+#define MTL_BUTTRESS_CURRENT_PLL					0x0000001cu
+#define MTL_BUTTRESS_CURRENT_PLL_RATIO_MASK				GENMASK(15, 0)
+
+#define MTL_BUTTRESS_PLL_ENABLE						0x00000020u
+
+#define MTL_BUTTRESS_FMIN_FUSE						0x00000024u
+#define MTL_BUTTRESS_FMIN_FUSE_MIN_RATIO_MASK				GENMASK(7, 0)
+#define MTL_BUTTRESS_FMIN_FUSE_PN_RATIO_MASK				GENMASK(15, 8)
+
+#define MTL_BUTTRESS_FMAX_FUSE						0x00000028u
+#define MTL_BUTTRESS_FMAX_FUSE_MAX_RATIO_MASK				GENMASK(7, 0)
+
+#define MTL_BUTTRESS_TILE_FUSE						0x0000002cu
+#define MTL_BUTTRESS_TILE_FUSE_VALID_MASK				BIT_MASK(0)
+#define MTL_BUTTRESS_TILE_FUSE_SKU_MASK					GENMASK(3, 2)
+
+#define MTL_BUTTRESS_LOCAL_INT_MASK					0x00000030u
+#define MTL_BUTTRESS_GLOBAL_INT_MASK					0x00000034u
+
+#define MTL_BUTTRESS_PLL_STATUS						0x00000040u
+#define MTL_BUTTRESS_PLL_STATUS_LOCK_MASK				BIT_MASK(1)
+
+#define MTL_BUTTRESS_VPU_STATUS						0x00000044u
+#define MTL_BUTTRESS_VPU_STATUS_READY_MASK				BIT_MASK(0)
+#define MTL_BUTTRESS_VPU_STATUS_IDLE_MASK				BIT_MASK(1)
+
+#define MTL_BUTTRESS_VPU_D0I3_CONTROL					0x00000060u
+#define MTL_BUTTRESS_VPU_D0I3_CONTROL_INPROGRESS_MASK			BIT_MASK(0)
+#define MTL_BUTTRESS_VPU_D0I3_CONTROL_I3_MASK				BIT_MASK(2)
+
+#define MTL_BUTTRESS_VPU_IP_RESET					0x00000050u
+#define MTL_BUTTRESS_VPU_IP_RESET_TRIGGER_MASK				BIT_MASK(0)
+
+#define MTL_BUTTRESS_VPU_TELEMETRY_OFFSET				0x00000080u
+#define MTL_BUTTRESS_VPU_TELEMETRY_SIZE					0x00000084u
+#define MTL_BUTTRESS_VPU_TELEMETRY_ENABLE				0x00000088u
+
+#define MTL_BUTTRESS_ATS_ERR_LOG_0					0x000000a0u
+#define MTL_BUTTRESS_ATS_ERR_LOG_1					0x000000a4u
+#define MTL_BUTTRESS_ATS_ERR_CLEAR					0x000000a8u
+
+#define MTL_BUTTRESS_UFI_ERR_LOG					0x000000b0u
+#define MTL_BUTTRESS_UFI_ERR_LOG_CQ_ID_MASK				GENMASK(11, 0)
+#define MTL_BUTTRESS_UFI_ERR_LOG_AXI_ID_MASK				GENMASK(19, 12)
+#define MTL_BUTTRESS_UFI_ERR_LOG_OPCODE_MASK				GENMASK(24, 20)
+
+#define MTL_BUTTRESS_UFI_ERR_CLEAR					0x000000b4u
+
+#define MTL_VPU_HOST_SS_CPR_CLK_SET					0x00000084u
+#define MTL_VPU_HOST_SS_CPR_CLK_SET_TOP_NOC_MASK			BIT_MASK(1)
+#define MTL_VPU_HOST_SS_CPR_CLK_SET_DSS_MAS_MASK			BIT_MASK(10)
+#define MTL_VPU_HOST_SS_CPR_CLK_SET_MSS_MAS_MASK			BIT_MASK(11)
+
+#define MTL_VPU_HOST_SS_CPR_RST_SET					0x00000094u
+#define MTL_VPU_HOST_SS_CPR_RST_SET_TOP_NOC_MASK			BIT_MASK(1)
+#define MTL_VPU_HOST_SS_CPR_RST_SET_DSS_MAS_MASK			BIT_MASK(10)
+#define MTL_VPU_HOST_SS_CPR_RST_SET_MSS_MAS_MASK			BIT_MASK(11)
+
+#define MTL_VPU_HOST_SS_CPR_RST_CLR					0x00000098u
+#define MTL_VPU_HOST_SS_CPR_RST_CLR_TOP_NOC_MASK			BIT_MASK(1)
+#define MTL_VPU_HOST_SS_CPR_RST_CLR_DSS_MAS_MASK			BIT_MASK(10)
+#define MTL_VPU_HOST_SS_CPR_RST_CLR_MSS_MAS_MASK			BIT_MASK(11)
+
+#define MTL_VPU_HOST_SS_HW_VERSION					0x00000108u
+#define MTL_VPU_HOST_SS_HW_VERSION_SOC_REVISION_MASK			GENMASK(7, 0)
+#define MTL_VPU_HOST_SS_HW_VERSION_SOC_NUMBER_MASK			GENMASK(15, 8)
+#define MTL_VPU_HOST_SS_HW_VERSION_VPU_GENERATION_MASK			GENMASK(23, 16)
+
+#define MTL_VPU_HOST_SS_GEN_CTRL					0x00000118u
+#define MTL_VPU_HOST_SS_GEN_CTRL_PS_MASK				GENMASK(31, 29)
+
+#define MTL_VPU_HOST_SS_NOC_QREQN					0x00000154u
+#define MTL_VPU_HOST_SS_NOC_QREQN_TOP_SOCMMIO_MASK			BIT_MASK(0)
+
+#define MTL_VPU_HOST_SS_NOC_QACCEPTN					0x00000158u
+#define MTL_VPU_HOST_SS_NOC_QACCEPTN_TOP_SOCMMIO_MASK			BIT_MASK(0)
+
+#define MTL_VPU_HOST_SS_NOC_QDENY					0x0000015cu
+#define MTL_VPU_HOST_SS_NOC_QDENY_TOP_SOCMMIO_MASK			BIT_MASK(0)
+
+#define MTL_VPU_TOP_NOC_QREQN						0x00000160u
+#define MTL_VPU_TOP_NOC_QREQN_CPU_CTRL_MASK				BIT_MASK(0)
+#define MTL_VPU_TOP_NOC_QREQN_HOSTIF_L2CACHE_MASK			BIT_MASK(1)
+
+#define MTL_VPU_TOP_NOC_QACCEPTN					0x00000164u
+#define MTL_VPU_TOP_NOC_QACCEPTN_CPU_CTRL_MASK				BIT_MASK(0)
+#define MTL_VPU_TOP_NOC_QACCEPTN_HOSTIF_L2CACHE_MASK			BIT_MASK(1)
+
+#define MTL_VPU_TOP_NOC_QDENY						0x00000168u
+#define MTL_VPU_TOP_NOC_QDENY_CPU_CTRL_MASK				BIT_MASK(0)
+#define MTL_VPU_TOP_NOC_QDENY_HOSTIF_L2CACHE_MASK			BIT_MASK(1)
+
+#define MTL_VPU_HOST_SS_FW_SOC_IRQ_EN					0x00000170u
+#define MTL_VPU_HOST_SS_FW_SOC_IRQ_EN_CSS_ROM_CMX_MASK			BIT_MASK(0)
+#define MTL_VPU_HOST_SS_FW_SOC_IRQ_EN_CSS_DBG_MASK			BIT_MASK(1)
+#define MTL_VPU_HOST_SS_FW_SOC_IRQ_EN_CSS_CTRL_MASK			BIT_MASK(2)
+#define MTL_VPU_HOST_SS_FW_SOC_IRQ_EN_DEC400_MASK			BIT_MASK(3)
+#define MTL_VPU_HOST_SS_FW_SOC_IRQ_EN_MSS_NCE_MASK			BIT_MASK(4)
+#define MTL_VPU_HOST_SS_FW_SOC_IRQ_EN_MSS_MBI_MASK			BIT_MASK(5)
+#define MTL_VPU_HOST_SS_FW_SOC_IRQ_EN_MSS_MBI_CMX_MASK			BIT_MASK(6)
+
+#define MTL_VPU_HOST_SS_ICB_STATUS_0					0x00010210u
+#define MTL_VPU_HOST_SS_ICB_STATUS_0_TIMER_0_INT_MASK			BIT_MASK(0)
+#define MTL_VPU_HOST_SS_ICB_STATUS_0_TIMER_1_INT_MASK			BIT_MASK(1)
+#define MTL_VPU_HOST_SS_ICB_STATUS_0_TIMER_2_INT_MASK			BIT_MASK(2)
+#define MTL_VPU_HOST_SS_ICB_STATUS_0_TIMER_3_INT_MASK			BIT_MASK(3)
+#define MTL_VPU_HOST_SS_ICB_STATUS_0_HOST_IPC_FIFO_INT_MASK		BIT_MASK(4)
+#define MTL_VPU_HOST_SS_ICB_STATUS_0_MMU_IRQ_0_INT_MASK			BIT_MASK(5)
+#define MTL_VPU_HOST_SS_ICB_STATUS_0_MMU_IRQ_1_INT_MASK			BIT_MASK(6)
+#define MTL_VPU_HOST_SS_ICB_STATUS_0_MMU_IRQ_2_INT_MASK			BIT_MASK(7)
+#define MTL_VPU_HOST_SS_ICB_STATUS_0_NOC_FIREWALL_INT_MASK		BIT_MASK(8)
+#define MTL_VPU_HOST_SS_ICB_STATUS_0_CPU_INT_REDIRECT_0_INT_MASK	BIT_MASK(30)
+#define MTL_VPU_HOST_SS_ICB_STATUS_0_CPU_INT_REDIRECT_1_INT_MASK	BIT_MASK(31)
+
+#define MTL_VPU_HOST_SS_ICB_STATUS_1					0x00010214u
+#define MTL_VPU_HOST_SS_ICB_STATUS_1_CPU_INT_REDIRECT_2_INT_MASK	BIT_MASK(0)
+#define MTL_VPU_HOST_SS_ICB_STATUS_1_CPU_INT_REDIRECT_3_INT_MASK	BIT_MASK(1)
+#define MTL_VPU_HOST_SS_ICB_STATUS_1_CPU_INT_REDIRECT_4_INT_MASK	BIT_MASK(2)
+
+#define MTL_VPU_HOST_SS_ICB_CLEAR_0					0x00010220u
+#define MTL_VPU_HOST_SS_ICB_CLEAR_1					0x00010224u
+#define MTL_VPU_HOST_SS_ICB_ENABLE_0					0x00010240u
+
+#define MTL_VPU_HOST_SS_TIM_IPC_FIFO_ATM				0x000200f4u
+
+#define MTL_VPU_HOST_SS_TIM_IPC_FIFO_STAT				0x000200fcu
+#define MTL_VPU_HOST_SS_TIM_IPC_FIFO_STAT_READ_POINTER_MASK		GENMASK(7, 0)
+#define MTL_VPU_HOST_SS_TIM_IPC_FIFO_STAT_WRITE_POINTER_MASK		GENMASK(15, 8)
+#define MTL_VPU_HOST_SS_TIM_IPC_FIFO_STAT_FILL_LEVEL_MASK		GENMASK(23, 16)
+#define MTL_VPU_HOST_SS_TIM_IPC_FIFO_STAT_RSVD0_MASK			GENMASK(31, 24)
+
+#define MTL_VPU_HOST_SS_AON_PWR_ISO_EN0					0x00030020u
+#define MTL_VPU_HOST_SS_AON_PWR_ISO_EN0_MSS_CPU_MASK			BIT_MASK(3)
+
+#define MTL_VPU_HOST_SS_AON_PWR_ISLAND_EN0				0x00030024u
+#define MTL_VPU_HOST_SS_AON_PWR_ISLAND_EN0_MSS_CPU_MASK			BIT_MASK(3)
+
+#define MTL_VPU_HOST_SS_AON_PWR_ISLAND_TRICKLE_EN0			0x00030028u
+#define MTL_VPU_HOST_SS_AON_PWR_ISLAND_TRICKLE_EN0_MSS_CPU_MASK		BIT_MASK(3)
+
+#define MTL_VPU_HOST_SS_AON_PWR_ISLAND_STATUS0				0x0003002cu
+#define MTL_VPU_HOST_SS_AON_PWR_ISLAND_STATUS0_MSS_CPU_MASK		BIT_MASK(3)
+
+#define MTL_VPU_HOST_SS_AON_VPU_IDLE_GEN				0x00030200u
+#define MTL_VPU_HOST_SS_AON_VPU_IDLE_GEN_EN_MASK			BIT_MASK(0)
+
+#define MTL_VPU_HOST_SS_AON_DPU_ACTIVE					0x00030204u
+#define MTL_VPU_HOST_SS_AON_DPU_ACTIVE_DPU_ACTIVE_MASK			BIT_MASK(0)
+
+#define MTL_VPU_HOST_SS_LOADING_ADDRESS_LO				0x00041040u
+#define MTL_VPU_HOST_SS_LOADING_ADDRESS_LO_DONE_MASK			BIT_MASK(0)
+#define MTL_VPU_HOST_SS_LOADING_ADDRESS_LO_IOSF_RS_ID_MASK		GENMASK(2, 1)
+#define MTL_VPU_HOST_SS_LOADING_ADDRESS_LO_IMAGE_LOCATION_MASK		GENMASK(31, 3)
+
+#define MTL_VPU_HOST_SS_WORKPOINT_CONFIG_MIRROR				0x00082020u
+#define MTL_VPU_HOST_SS_WORKPOINT_CONFIG_MIRROR_FINAL_PLL_FREQ_MASK	GENMASK(15, 0)
+#define MTL_VPU_HOST_SS_WORKPOINT_CONFIG_MIRROR_CONFIG_ID_MASK		GENMASK(31, 16)
+
+#define MTL_VPU_HOST_MMU_IDR0						0x00200000u
+#define MTL_VPU_HOST_MMU_IDR1						0x00200004u
+#define MTL_VPU_HOST_MMU_IDR3						0x0020000cu
+#define MTL_VPU_HOST_MMU_IDR5						0x00200014u
+#define MTL_VPU_HOST_MMU_CR0						0x00200020u
+#define MTL_VPU_HOST_MMU_CR0ACK						0x00200024u
+#define MTL_VPU_HOST_MMU_CR1						0x00200028u
+#define MTL_VPU_HOST_MMU_CR2						0x0020002cu
+#define MTL_VPU_HOST_MMU_IRQ_CTRL					0x00200050u
+#define MTL_VPU_HOST_MMU_IRQ_CTRLACK					0x00200054u
+
+#define MTL_VPU_HOST_MMU_GERROR						0x00200060u
+#define MTL_VPU_HOST_MMU_GERROR_CMDQ_MASK				BIT_MASK(0)
+#define MTL_VPU_HOST_MMU_GERROR_EVTQ_ABT_MASK				BIT_MASK(2)
+#define MTL_VPU_HOST_MMU_GERROR_PRIQ_ABT_MASK				BIT_MASK(3)
+#define MTL_VPU_HOST_MMU_GERROR_MSI_CMDQ_ABT_MASK			BIT_MASK(4)
+#define MTL_VPU_HOST_MMU_GERROR_MSI_EVTQ_ABT_MASK			BIT_MASK(5)
+#define MTL_VPU_HOST_MMU_GERROR_MSI_PRIQ_ABT_MASK			BIT_MASK(6)
+#define MTL_VPU_HOST_MMU_GERROR_MSI_ABT_MASK				BIT_MASK(7)
+
+#define MTL_VPU_HOST_MMU_GERRORN					0x00200064u
+
+#define MTL_VPU_HOST_MMU_STRTAB_BASE					0x00200080u
+#define MTL_VPU_HOST_MMU_STRTAB_BASE_CFG				0x00200088u
+#define MTL_VPU_HOST_MMU_CMDQ_BASE					0x00200090u
+#define MTL_VPU_HOST_MMU_CMDQ_PROD					0x00200098u
+#define MTL_VPU_HOST_MMU_CMDQ_CONS					0x0020009cu
+#define MTL_VPU_HOST_MMU_EVTQ_BASE					0x002000a0u
+#define MTL_VPU_HOST_MMU_EVTQ_PROD					0x002000a8u
+#define MTL_VPU_HOST_MMU_EVTQ_CONS					0x002000acu
+#define MTL_VPU_HOST_MMU_EVTQ_PROD_SEC					(0x002000a8u + SZ_64K)
+#define MTL_VPU_HOST_MMU_EVTQ_CONS_SEC					(0x002000acu + SZ_64K)
+
+#define MTL_VPU_HOST_IF_TCU_PTW_OVERRIDES				0x00360000u
+#define MTL_VPU_HOST_IF_TCU_PTW_OVERRIDES_CACHE_OVERRIDE_EN_MASK	BIT_MASK(0)
+#define MTL_VPU_HOST_IF_TCU_PTW_OVERRIDES_AWCACHE_OVERRIDE_MASK		BIT_MASK(1)
+#define MTL_VPU_HOST_IF_TCU_PTW_OVERRIDES_ARCACHE_OVERRIDE_MASK		BIT_MASK(2)
+#define MTL_VPU_HOST_IF_TCU_PTW_OVERRIDES_NOSNOOP_OVERRIDE_EN_MASK	BIT_MASK(3)
+#define MTL_VPU_HOST_IF_TCU_PTW_OVERRIDES_AW_NOSNOOP_OVERRIDE_MASK	BIT_MASK(4)
+#define MTL_VPU_HOST_IF_TCU_PTW_OVERRIDES_AR_NOSNOOP_OVERRIDE_MASK	BIT_MASK(5)
+#define MTL_VPU_HOST_IF_TCU_PTW_OVERRIDES_PTW_AW_CONTEXT_FLAG_MASK	GENMASK(10, 6)
+#define MTL_VPU_HOST_IF_TCU_PTW_OVERRIDES_PTW_AR_CONTEXT_FLAG_MASK	GENMASK(15, 11)
+
+#define MTL_VPU_HOST_IF_TBU_MMUSSIDV					0x00360004u
+#define MTL_VPU_HOST_IF_TBU_MMUSSIDV_TBU0_AWMMUSSIDV_MASK		BIT_MASK(0)
+#define MTL_VPU_HOST_IF_TBU_MMUSSIDV_TBU0_ARMMUSSIDV_MASK		BIT_MASK(1)
+#define MTL_VPU_HOST_IF_TBU_MMUSSIDV_TBU1_AWMMUSSIDV_MASK		BIT_MASK(2)
+#define MTL_VPU_HOST_IF_TBU_MMUSSIDV_TBU1_ARMMUSSIDV_MASK		BIT_MASK(3)
+#define MTL_VPU_HOST_IF_TBU_MMUSSIDV_TBU2_AWMMUSSIDV_MASK		BIT_MASK(4)
+#define MTL_VPU_HOST_IF_TBU_MMUSSIDV_TBU2_ARMMUSSIDV_MASK		BIT_MASK(5)
+#define MTL_VPU_HOST_IF_TBU_MMUSSIDV_TBU3_AWMMUSSIDV_MASK		BIT_MASK(6)
+#define MTL_VPU_HOST_IF_TBU_MMUSSIDV_TBU3_ARMMUSSIDV_MASK		BIT_MASK(7)
+#define MTL_VPU_HOST_IF_TBU_MMUSSIDV_TBU4_AWMMUSSIDV_MASK		BIT_MASK(8)
+#define MTL_VPU_HOST_IF_TBU_MMUSSIDV_TBU4_ARMMUSSIDV_MASK		BIT_MASK(9)
+
+#define MTL_VPU_CPU_SS_DSU_LEON_RT_BASE					0x04000000u
+#define MTL_VPU_CPU_SS_DSU_LEON_RT_DSU_CTRL				0x04000000u
+#define MTL_VPU_CPU_SS_DSU_LEON_RT_PC_REG				0x04400010u
+#define MTL_VPU_CPU_SS_DSU_LEON_RT_NPC_REG				0x04400014u
+#define MTL_VPU_CPU_SS_DSU_LEON_RT_DSU_TRAP_REG				0x04400020u
+
+#define MTL_VPU_CPU_SS_MSSCPU_CPR_CLK_SET				0x06010004u
+#define MTL_VPU_CPU_SS_MSSCPU_CPR_CLK_SET_CPU_DSU_MASK			BIT_MASK(1)
+
+#define MTL_VPU_CPU_SS_MSSCPU_CPR_RST_CLR				0x06010018u
+#define MTL_VPU_CPU_SS_MSSCPU_CPR_RST_CLR_CPU_DSU_MASK			BIT_MASK(1)
+
+#define MTL_VPU_CPU_SS_MSSCPU_CPR_LEON_RT_VEC				0x06010040u
+#define MTL_VPU_CPU_SS_MSSCPU_CPR_LEON_RT_VEC_IRQI_RSTRUN0_MASK		BIT_MASK(0)
+#define MTL_VPU_CPU_SS_MSSCPU_CPR_LEON_RT_VEC_IRQI_RESUME0_MASK		BIT_MASK(1)
+#define MTL_VPU_CPU_SS_MSSCPU_CPR_LEON_RT_VEC_IRQI_RSTRUN1_MASK		BIT_MASK(2)
+#define MTL_VPU_CPU_SS_MSSCPU_CPR_LEON_RT_VEC_IRQI_RESUME1_MASK		BIT_MASK(3)
+#define MTL_VPU_CPU_SS_MSSCPU_CPR_LEON_RT_VEC_IRQI_RSTVEC_MASK		GENMASK(31, 4)
+
+#define MTL_VPU_CPU_SS_TIM_WATCHDOG					0x0602009cu
+#define MTL_VPU_CPU_SS_TIM_WDOG_EN					0x060200a4u
+#define MTL_VPU_CPU_SS_TIM_SAFE						0x060200a8u
+#define MTL_VPU_CPU_SS_TIM_IPC_FIFO					0x060200f0u
+
+#define MTL_VPU_CPU_SS_TIM_GEN_CONFIG					0x06021008u
+#define MTL_VPU_CPU_SS_TIM_GEN_CONFIG_WDOG_TO_INT_CLR_MASK		BIT_MASK(9)
+
+#define MTL_VPU_CPU_SS_DOORBELL_0					0x06300000u
+#define MTL_VPU_CPU_SS_DOORBELL_0_SET_MASK				BIT_MASK(0)
+
+#define MTL_VPU_CPU_SS_DOORBELL_1					0x06301000u
+
+#endif /* __IVPU_HW_MTL_REG_H__ */

drivers/accel/ivpu/ivpu_hw_reg_io.h

+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2020-2023 Intel Corporation
+ */
+
+#ifndef __IVPU_HW_REG_IO_H__
+#define __IVPU_HW_REG_IO_H__
+
+#include <linux/bitfield.h>
+#include <linux/io.h>
+#include <linux/iopoll.h>
+
+#include "ivpu_drv.h"
+
+#define REG_POLL_SLEEP_US 50
+#define REG_IO_ERROR      0xffffffff
+
+#define REGB_RD32(reg)          ivpu_hw_reg_rd32(vdev, vdev->regb, (reg), #reg, __func__)
+#define REGB_RD32_SILENT(reg)   readl(vdev->regb + (reg))
+#define REGB_RD64(reg)          ivpu_hw_reg_rd64(vdev, vdev->regb, (reg), #reg, __func__)
+#define REGB_WR32(reg, val)     ivpu_hw_reg_wr32(vdev, vdev->regb, (reg), (val), #reg, __func__)
+#define REGB_WR64(reg, val)     ivpu_hw_reg_wr64(vdev, vdev->regb, (reg), (val), #reg, __func__)
+
+#define REGV_RD32(reg)          ivpu_hw_reg_rd32(vdev, vdev->regv, (reg), #reg, __func__)
+#define REGV_RD32_SILENT(reg)   readl(vdev->regv + (reg))
+#define REGV_RD64(reg)          ivpu_hw_reg_rd64(vdev, vdev->regv, (reg), #reg, __func__)
+#define REGV_WR32(reg, val)     ivpu_hw_reg_wr32(vdev, vdev->regv, (reg), (val), #reg, __func__)
+#define REGV_WR64(reg, val)     ivpu_hw_reg_wr64(vdev, vdev->regv, (reg), (val), #reg, __func__)
+
+#define REGV_WR32I(reg, stride, index, val) \
+	ivpu_hw_reg_wr32_index(vdev, vdev->regv, (reg), (stride), (index), (val), #reg, __func__)
+
+#define REG_FLD(REG, FLD) \
+	(REG##_##FLD##_MASK)
+#define REG_FLD_NUM(REG, FLD, num) \
+	FIELD_PREP(REG##_##FLD##_MASK, num)
+#define REG_GET_FLD(REG, FLD, val) \
+	FIELD_GET(REG##_##FLD##_MASK, val)
+#define REG_CLR_FLD(REG, FLD, val) \
+	((val) & ~(REG##_##FLD##_MASK))
+#define REG_SET_FLD(REG, FLD, val) \
+	((val) | (REG##_##FLD##_MASK))
+#define REG_SET_FLD_NUM(REG, FLD, num, val) \
+	(((val) & ~(REG##_##FLD##_MASK)) | FIELD_PREP(REG##_##FLD##_MASK, num))
+#define REG_TEST_FLD(REG, FLD, val) \
+	((REG##_##FLD##_MASK) == ((val) & (REG##_##FLD##_MASK)))
+#define REG_TEST_FLD_NUM(REG, FLD, num, val) \
+	((num) == FIELD_GET(REG##_##FLD##_MASK, val))
+
+#define REGB_POLL(reg, var, cond, timeout_us) \
+	read_poll_timeout(REGB_RD32_SILENT, var, cond, REG_POLL_SLEEP_US, timeout_us, false, reg)
+
+#define REGV_POLL(reg, var, cond, timeout_us) \
+	read_poll_timeout(REGV_RD32_SILENT, var, cond, REG_POLL_SLEEP_US, timeout_us, false, reg)
+
+#define REGB_POLL_FLD(reg, fld, val, timeout_us) \
+({ \
+	u32 var; \
+	REGB_POLL(reg, var, (FIELD_GET(reg##_##fld##_MASK, var) == (val)), timeout_us); \
+})
+
+#define REGV_POLL_FLD(reg, fld, val, timeout_us) \
+({ \
+	u32 var; \
+	REGV_POLL(reg, var, (FIELD_GET(reg##_##fld##_MASK, var) == (val)), timeout_us); \
+})
+
+static inline u32
+ivpu_hw_reg_rd32(struct ivpu_device *vdev, void __iomem *base, u32 reg,
+		 const char *name, const char *func)
+{
+	u32 val = readl(base + reg);
+
+	ivpu_dbg(vdev, REG, "%s RD: %s (0x%08x) => 0x%08x\n", func, name, reg, val);
+	return val;
+}
+
+static inline u64
+ivpu_hw_reg_rd64(struct ivpu_device *vdev, void __iomem *base, u32 reg,
+		 const char *name, const char *func)
+{
+	u64 val = readq(base + reg);
+
+	ivpu_dbg(vdev, REG, "%s RD: %s (0x%08x) => 0x%016llx\n", func, name, reg, val);
+	return val;
+}
+
+static inline void
+ivpu_hw_reg_wr32(struct ivpu_device *vdev, void __iomem *base, u32 reg, u32 val,
+		 const char *name, const char *func)
+{
+	ivpu_dbg(vdev, REG, "%s WR: %s (0x%08x) <= 0x%08x\n", func, name, reg, val);
+	writel(val, base + reg);
+}
+
+static inline void
+ivpu_hw_reg_wr64(struct ivpu_device *vdev, void __iomem *base, u32 reg, u64 val,
+		 const char *name, const char *func)
+{
+	ivpu_dbg(vdev, REG, "%s WR: %s (0x%08x) <= 0x%016llx\n", func, name, reg, val);
+	writeq(val, base + reg);
+}
+
+static inline void
+ivpu_hw_reg_wr32_index(struct ivpu_device *vdev, void __iomem *base, u32 reg,
+		       u32 stride, u32 index, u32 val, const char *name,
+		       const char *func)
+{
+	reg += index * stride;
+
+	ivpu_dbg(vdev, REG, "%s WR: %s_%d (0x%08x) <= 0x%08x\n", func, name, index, reg, val);
+	writel(val, base + reg);
+}
+
+#endif /* __IVPU_HW_REG_IO_H__ */

include/uapi/drm/ivpu_accel.h

+/* SPDX-License-Identifier: GPL-2.0-only WITH Linux-syscall-note */
+/*
+ * Copyright (C) 2020-2023 Intel Corporation
+ */
+
+#ifndef __UAPI_IVPU_DRM_H__
+#define __UAPI_IVPU_DRM_H__
+
+#include "drm.h"
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+#define DRM_IVPU_DRIVER_MAJOR 1
+#define DRM_IVPU_DRIVER_MINOR 0
+
+#define DRM_IVPU_GET_PARAM		  0x00
+#define DRM_IVPU_SET_PARAM		  0x01
+
+#define DRM_IOCTL_IVPU_GET_PARAM                                               \
+	DRM_IOWR(DRM_COMMAND_BASE + DRM_IVPU_GET_PARAM, struct drm_ivpu_param)
+
+#define DRM_IOCTL_IVPU_SET_PARAM                                               \
+	DRM_IOW(DRM_COMMAND_BASE + DRM_IVPU_SET_PARAM, struct drm_ivpu_param)
+
+/**
+ * DOC: contexts
+ *
+ * VPU contexts have private virtual address space, job queues and priority.
+ * Each context is identified by an unique ID. Context is created on open().
+ */
+
+#define DRM_IVPU_PARAM_DEVICE_ID	    0
+#define DRM_IVPU_PARAM_DEVICE_REVISION	    1
+#define DRM_IVPU_PARAM_PLATFORM_TYPE	    2
+#define DRM_IVPU_PARAM_CORE_CLOCK_RATE	    3
+#define DRM_IVPU_PARAM_NUM_CONTEXTS	    4
+#define DRM_IVPU_PARAM_CONTEXT_BASE_ADDRESS 5
+#define DRM_IVPU_PARAM_CONTEXT_PRIORITY	    6
+
+#define DRM_IVPU_PLATFORM_TYPE_SILICON	    0
+
+#define DRM_IVPU_CONTEXT_PRIORITY_IDLE	    0
+#define DRM_IVPU_CONTEXT_PRIORITY_NORMAL    1
+#define DRM_IVPU_CONTEXT_PRIORITY_FOCUS	    2
+#define DRM_IVPU_CONTEXT_PRIORITY_REALTIME  3
+
+/**
+ * struct drm_ivpu_param - Get/Set VPU parameters
+ */
+struct drm_ivpu_param {
+	/**
+	 * @param:
+	 *
+	 * Supported params:
+	 *
+	 * %DRM_IVPU_PARAM_DEVICE_ID:
+	 * PCI Device ID of the VPU device (read-only)
+	 *
+	 * %DRM_IVPU_PARAM_DEVICE_REVISION:
+	 * VPU device revision (read-only)
+	 *
+	 * %DRM_IVPU_PARAM_PLATFORM_TYPE:
+	 * Returns %DRM_IVPU_PLATFORM_TYPE_SILICON on real hardware or device specific
+	 * platform type when executing on a simulator or emulator (read-only)
+	 *
+	 * %DRM_IVPU_PARAM_CORE_CLOCK_RATE:
+	 * Current PLL frequency (read-only)
+	 *
+	 * %DRM_IVPU_PARAM_NUM_CONTEXTS:
+	 * Maximum number of simultaneously existing contexts (read-only)
+	 *
+	 * %DRM_IVPU_PARAM_CONTEXT_BASE_ADDRESS:
+	 * Lowest VPU virtual address available in the current context (read-only)
+	 *
+	 * %DRM_IVPU_PARAM_CONTEXT_PRIORITY:
+	 * Value of current context scheduling priority (read-write).
+	 * See DRM_IVPU_CONTEXT_PRIORITY_* for possible values.
+	 *
+	 */
+	__u32 param;
+
+	/** @index: Index for params that have multiple instances */
+	__u32 index;
+
+	/** @value: Param value */
+	__u64 value;
+};
+
+#if defined(__cplusplus)
+}
+#endif
+
+#endif /* __UAPI_IVPU_DRM_H__ */