Resguardo inicial

linux-7.2.3/drivers/accel/ivpu/Kconfig

@@ -0,0 +1,27 @@
+# SPDX-License-Identifier: GPL-2.0-only
+
+config DRM_ACCEL_IVPU
+	tristate "Intel NPU (Neural Processing Unit)"
+	depends on DRM_ACCEL
+	depends on X86_64 && !UML
+	depends on PCI && PCI_MSI
+	select FW_LOADER
+	select DRM_GEM_SHMEM_HELPER
+	select GENERIC_ALLOCATOR
+	select WANT_DEV_COREDUMP
+	help
+	  Choose this option if you have a system with an 14th generation
+	  Intel CPU (Meteor Lake) or newer. Intel NPU (formerly called Intel VPU)
+	  is a CPU-integrated inference accelerator for Computer Vision
+	  and Deep Learning applications.
+
+	  If "M" is selected, the module will be called intel_vpu.
+
+config DRM_ACCEL_IVPU_DEBUG
+	bool "Intel NPU debug mode"
+	depends on DRM_ACCEL_IVPU
+	help
+	  Choose this option to enable additional
+	  debug features for the Intel NPU driver:
+	  - Always print debug messages regardless of dyndbg config,
+	  - Enable unsafe module params.

linux-7.2.3/drivers/accel/ivpu/Makefile

@@ -0,0 +1,30 @@
+# SPDX-License-Identifier: GPL-2.0-only
+# Copyright (C) 2023-2024 Intel Corporation
+
+intel_vpu-y := \
+	ivpu_drv.o \
+	ivpu_fw.o \
+	ivpu_fw_log.o \
+	ivpu_gem.o \
+	ivpu_gem_userptr.o \
+	ivpu_hw.o \
+	ivpu_hw_btrs.o \
+	ivpu_hw_ip.o \
+	ivpu_ipc.o \
+	ivpu_job.o \
+	ivpu_jsm_msg.o \
+	ivpu_mmu.o \
+	ivpu_mmu_context.o \
+	ivpu_ms.o \
+	ivpu_pm.o \
+	ivpu_sysfs.o \
+	ivpu_trace_points.o
+
+intel_vpu-$(CONFIG_DEBUG_FS) += ivpu_debugfs.o
+intel_vpu-$(CONFIG_DEV_COREDUMP) += ivpu_coredump.o
+
+obj-$(CONFIG_DRM_ACCEL_IVPU) += intel_vpu.o
+
+subdir-ccflags-$(CONFIG_DRM_ACCEL_IVPU_DEBUG) += -DDEBUG
+
+CFLAGS_ivpu_trace_points.o = -I$(src)

linux-7.2.3/drivers/accel/ivpu/ivpu_coredump.c

@@ -0,0 +1,39 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2020-2024 Intel Corporation
+ */
+
+#include <linux/devcoredump.h>
+#include <linux/firmware.h>
+
+#include "ivpu_coredump.h"
+#include "ivpu_fw.h"
+#include "ivpu_gem.h"
+#include "vpu_boot_api.h"
+
+#define CRASH_DUMP_HEADER "Intel NPU crash dump"
+#define CRASH_DUMP_HEADERS_SIZE SZ_4K
+
+void ivpu_dev_coredump(struct ivpu_device *vdev)
+{
+	struct drm_print_iterator pi = {};
+	struct drm_printer p;
+	size_t coredump_size;
+	char *coredump;
+
+	coredump_size = CRASH_DUMP_HEADERS_SIZE + FW_VERSION_HEADER_SIZE +
+			ivpu_bo_size(vdev->fw->mem_log_crit) + ivpu_bo_size(vdev->fw->mem_log_verb);
+	coredump = vmalloc(coredump_size);
+	if (!coredump)
+		return;
+
+	pi.data = coredump;
+	pi.remain = coredump_size;
+	p = drm_coredump_printer(&pi);
+
+	drm_printf(&p, "%s\n", CRASH_DUMP_HEADER);
+	drm_printf(&p, "FW version: %s\n", vdev->fw->version);
+	ivpu_fw_log_print(vdev, false, &p);
+
+	dev_coredumpv(vdev->drm.dev, coredump, pi.offset, GFP_KERNEL);
+}

linux-7.2.3/drivers/accel/ivpu/ivpu_coredump.h

@@ -0,0 +1,25 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2020-2024 Intel Corporation
+ */
+
+#ifndef __IVPU_COREDUMP_H__
+#define __IVPU_COREDUMP_H__
+
+#include <drm/drm_print.h>
+
+#include "ivpu_drv.h"
+#include "ivpu_fw_log.h"
+
+#ifdef CONFIG_DEV_COREDUMP
+void ivpu_dev_coredump(struct ivpu_device *vdev);
+#else
+static inline void ivpu_dev_coredump(struct ivpu_device *vdev)
+{
+	struct drm_printer p = drm_info_printer(vdev->drm.dev);
+
+	ivpu_fw_log_print(vdev, false, &p);
+}
+#endif
+
+#endif /* __IVPU_COREDUMP_H__ */

linux-7.2.3/drivers/accel/ivpu/ivpu_debugfs.c

@@ -0,0 +1,524 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2020-2026 Intel Corporation
+ */
+
+#include <linux/debugfs.h>
+#include <linux/fault-inject.h>
+
+#include <drm/drm_debugfs.h>
+#include <drm/drm_file.h>
+#include <drm/drm_print.h>
+
+#include <uapi/drm/ivpu_accel.h>
+
+#include "ivpu_debugfs.h"
+#include "ivpu_drv.h"
+#include "ivpu_fw.h"
+#include "ivpu_fw_log.h"
+#include "ivpu_gem.h"
+#include "ivpu_hw.h"
+#include "ivpu_jsm_msg.h"
+#include "ivpu_pm.h"
+#include "vpu_boot_api.h"
+
+static inline struct ivpu_device *seq_to_ivpu(struct seq_file *s)
+{
+	struct drm_debugfs_entry *entry = s->private;
+
+	return to_ivpu_device(entry->dev);
+}
+
+static int bo_list_show(struct seq_file *s, void *v)
+{
+	struct drm_printer p = drm_seq_file_printer(s);
+	struct ivpu_device *vdev = seq_to_ivpu(s);
+
+	ivpu_bo_list(&vdev->drm, &p);
+
+	return 0;
+}
+
+static int fw_name_show(struct seq_file *s, void *v)
+{
+	struct ivpu_device *vdev = seq_to_ivpu(s);
+
+	seq_printf(s, "%s\n", vdev->fw->name);
+	return 0;
+}
+
+static int fw_version_show(struct seq_file *s, void *v)
+{
+	struct ivpu_device *vdev = seq_to_ivpu(s);
+
+	seq_printf(s, "%s\n", vdev->fw->version);
+	return 0;
+}
+
+static int fw_trace_capability_show(struct seq_file *s, void *v)
+{
+	struct ivpu_device *vdev = seq_to_ivpu(s);
+	u64 trace_hw_component_mask;
+	u32 trace_destination_mask;
+	int ret;
+
+	ret = ivpu_jsm_trace_get_capability(vdev, &trace_destination_mask,
+					    &trace_hw_component_mask);
+	if (!ret) {
+		seq_printf(s,
+			   "trace_destination_mask:  %#18x\n"
+			   "trace_hw_component_mask: %#18llx\n",
+			   trace_destination_mask, trace_hw_component_mask);
+	}
+	return 0;
+}
+
+static int fw_trace_config_show(struct seq_file *s, void *v)
+{
+	struct ivpu_device *vdev = seq_to_ivpu(s);
+	/**
+	 * WA: VPU_JSM_MSG_TRACE_GET_CONFIG command is not working yet,
+	 * so we use values from vdev->fw instead of calling ivpu_jsm_trace_get_config()
+	 */
+	u32 trace_level = vdev->fw->trace_level;
+	u32 trace_destination_mask = vdev->fw->trace_destination_mask;
+	u64 trace_hw_component_mask = vdev->fw->trace_hw_component_mask;
+
+	seq_printf(s,
+		   "trace_level:             %#18x\n"
+		   "trace_destination_mask:  %#18x\n"
+		   "trace_hw_component_mask: %#18llx\n",
+		   trace_level, trace_destination_mask, trace_hw_component_mask);
+
+	return 0;
+}
+
+static int last_bootmode_show(struct seq_file *s, void *v)
+{
+	struct ivpu_device *vdev = seq_to_ivpu(s);
+
+	seq_printf(s, "%s\n", (vdev->fw->last_boot_mode == VPU_BOOT_TYPE_WARMBOOT) ?
+		   "warm boot" : "cold boot");
+
+	return 0;
+}
+
+static int reset_counter_show(struct seq_file *s, void *v)
+{
+	struct ivpu_device *vdev = seq_to_ivpu(s);
+
+	seq_printf(s, "%d\n", atomic_read(&vdev->pm->reset_counter));
+	return 0;
+}
+
+static int reset_pending_show(struct seq_file *s, void *v)
+{
+	struct ivpu_device *vdev = seq_to_ivpu(s);
+
+	seq_printf(s, "%d\n", atomic_read(&vdev->pm->reset_pending));
+	return 0;
+}
+
+static int firewall_irq_counter_show(struct seq_file *s, void *v)
+{
+	struct ivpu_device *vdev = seq_to_ivpu(s);
+
+	seq_printf(s, "%d\n", atomic_read(&vdev->hw->firewall_irq_counter));
+	return 0;
+}
+
+static int engine_reset_counter_show(struct seq_file *s, void *v)
+{
+	struct ivpu_device *vdev = seq_to_ivpu(s);
+
+	seq_printf(s, "%d\n", atomic_read(&vdev->pm->engine_reset_counter));
+	return 0;
+}
+
+static const struct drm_debugfs_info vdev_debugfs_list[] = {
+	{"bo_list", bo_list_show, 0},
+	{"fw_name", fw_name_show, 0},
+	{"fw_version", fw_version_show, 0},
+	{"fw_trace_capability", fw_trace_capability_show, 0},
+	{"fw_trace_config", fw_trace_config_show, 0},
+	{"last_bootmode", last_bootmode_show, 0},
+	{"reset_counter", reset_counter_show, 0},
+	{"reset_pending", reset_pending_show, 0},
+	{"firewall_irq_counter", firewall_irq_counter_show, 0},
+	{"engine_reset_counter", engine_reset_counter_show, 0},
+};
+
+static int dvfs_mode_get(void *data, u64 *dvfs_mode)
+{
+	struct ivpu_device *vdev = (struct ivpu_device *)data;
+
+	*dvfs_mode = vdev->fw->dvfs_mode;
+	return 0;
+}
+
+static int dvfs_mode_set(void *data, u64 dvfs_mode)
+{
+	struct ivpu_device *vdev = (struct ivpu_device *)data;
+
+	vdev->fw->dvfs_mode = (u32)dvfs_mode;
+	return pci_try_reset_function(to_pci_dev(vdev->drm.dev));
+}
+
+DEFINE_DEBUGFS_ATTRIBUTE(dvfs_mode_fops, dvfs_mode_get, dvfs_mode_set, "%llu\n");
+
+static ssize_t
+fw_dyndbg_fops_write(struct file *file, const char __user *user_buf, size_t size, loff_t *pos)
+{
+	struct ivpu_device *vdev = file->private_data;
+	char buffer[VPU_DYNDBG_CMD_MAX_LEN] = {};
+	int ret;
+
+	if (size >= VPU_DYNDBG_CMD_MAX_LEN)
+		return -EINVAL;
+
+	ret = strncpy_from_user(buffer, user_buf, size);
+	if (ret < 0)
+		return ret;
+
+	ivpu_jsm_dyndbg_control(vdev, buffer, size);
+	return size;
+}
+
+static const struct file_operations fw_dyndbg_fops = {
+	.owner = THIS_MODULE,
+	.open = simple_open,
+	.write = fw_dyndbg_fops_write,
+};
+
+static int fw_log_show(struct seq_file *s, void *v)
+{
+	struct ivpu_device *vdev = s->private;
+	struct drm_printer p = drm_seq_file_printer(s);
+
+	ivpu_fw_log_print(vdev, true, &p);
+	return 0;
+}
+
+static int fw_log_fops_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, fw_log_show, inode->i_private);
+}
+
+static ssize_t
+fw_log_fops_write(struct file *file, const char __user *user_buf, size_t size, loff_t *pos)
+{
+	struct seq_file *s = file->private_data;
+	struct ivpu_device *vdev = s->private;
+
+	if (!size)
+		return -EINVAL;
+
+	ivpu_fw_log_mark_read(vdev);
+	return size;
+}
+
+static const struct file_operations fw_log_fops = {
+	.owner = THIS_MODULE,
+	.open = fw_log_fops_open,
+	.write = fw_log_fops_write,
+	.read = seq_read,
+	.llseek = seq_lseek,
+	.release = single_release,
+};
+
+static ssize_t
+fw_profiling_freq_fops_write(struct file *file, const char __user *user_buf,
+			     size_t size, loff_t *pos)
+{
+	struct ivpu_device *vdev = file->private_data;
+	bool enable;
+	int ret;
+
+	ret = kstrtobool_from_user(user_buf, size, &enable);
+	if (ret < 0)
+		return ret;
+
+	ivpu_hw_profiling_freq_drive(vdev, enable);
+
+	ret = pci_try_reset_function(to_pci_dev(vdev->drm.dev));
+	if (ret)
+		return ret;
+
+	return size;
+}
+
+static const struct file_operations fw_profiling_freq_fops = {
+	.owner = THIS_MODULE,
+	.open = simple_open,
+	.write = fw_profiling_freq_fops_write,
+};
+
+static ssize_t
+fw_trace_destination_mask_fops_write(struct file *file, const char __user *user_buf,
+				     size_t size, loff_t *pos)
+{
+	struct ivpu_device *vdev = file->private_data;
+	struct ivpu_fw_info *fw = vdev->fw;
+	u32 trace_destination_mask;
+	int ret;
+
+	ret = kstrtou32_from_user(user_buf, size, 0, &trace_destination_mask);
+	if (ret < 0)
+		return ret;
+
+	fw->trace_destination_mask = trace_destination_mask;
+
+	ivpu_jsm_trace_set_config(vdev, fw->trace_level, trace_destination_mask,
+				  fw->trace_hw_component_mask);
+
+	return size;
+}
+
+static const struct file_operations fw_trace_destination_mask_fops = {
+	.owner = THIS_MODULE,
+	.open = simple_open,
+	.write = fw_trace_destination_mask_fops_write,
+};
+
+static ssize_t
+fw_trace_hw_comp_mask_fops_write(struct file *file, const char __user *user_buf,
+				 size_t size, loff_t *pos)
+{
+	struct ivpu_device *vdev = file->private_data;
+	struct ivpu_fw_info *fw = vdev->fw;
+	u64 trace_hw_component_mask;
+	int ret;
+
+	ret = kstrtou64_from_user(user_buf, size, 0, &trace_hw_component_mask);
+	if (ret < 0)
+		return ret;
+
+	fw->trace_hw_component_mask = trace_hw_component_mask;
+
+	ivpu_jsm_trace_set_config(vdev, fw->trace_level, fw->trace_destination_mask,
+				  trace_hw_component_mask);
+
+	return size;
+}
+
+static const struct file_operations fw_trace_hw_comp_mask_fops = {
+	.owner = THIS_MODULE,
+	.open = simple_open,
+	.write = fw_trace_hw_comp_mask_fops_write,
+};
+
+static ssize_t
+fw_trace_level_fops_write(struct file *file, const char __user *user_buf, size_t size, loff_t *pos)
+{
+	struct ivpu_device *vdev = file->private_data;
+	struct ivpu_fw_info *fw = vdev->fw;
+	u32 trace_level;
+	int ret;
+
+	ret = kstrtou32_from_user(user_buf, size, 0, &trace_level);
+	if (ret < 0)
+		return ret;
+
+	fw->trace_level = trace_level;
+
+	ivpu_jsm_trace_set_config(vdev, trace_level, fw->trace_destination_mask,
+				  fw->trace_hw_component_mask);
+
+	return size;
+}
+
+static const struct file_operations fw_trace_level_fops = {
+	.owner = THIS_MODULE,
+	.open = simple_open,
+	.write = fw_trace_level_fops_write,
+};
+
+static ssize_t
+ivpu_force_recovery_fn(struct file *file, const char __user *user_buf, size_t size, loff_t *pos)
+{
+	struct ivpu_device *vdev = file->private_data;
+	int ret;
+
+	if (!size)
+		return -EINVAL;
+
+	ret = ivpu_rpm_get(vdev);
+	if (ret < 0)
+		return ret;
+
+	ivpu_pm_trigger_recovery(vdev, "debugfs");
+	flush_work(&vdev->pm->recovery_work);
+	ivpu_rpm_put(vdev);
+	return size;
+}
+
+static const struct file_operations ivpu_force_recovery_fops = {
+	.owner = THIS_MODULE,
+	.open = simple_open,
+	.write = ivpu_force_recovery_fn,
+};
+
+static int ivpu_reset_engine_fn(void *data, u64 val)
+{
+	struct ivpu_device *vdev = (struct ivpu_device *)data;
+	struct vpu_jsm_msg resp;
+
+	return ivpu_jsm_reset_engine(vdev, (u32)val, &resp);
+}
+
+DEFINE_DEBUGFS_ATTRIBUTE(ivpu_reset_engine_fops, NULL, ivpu_reset_engine_fn, "0x%02llx\n");
+
+static int ivpu_resume_engine_fn(void *data, u64 val)
+{
+	struct ivpu_device *vdev = (struct ivpu_device *)data;
+
+	return ivpu_jsm_hws_resume_engine(vdev, (u32)val);
+}
+
+DEFINE_DEBUGFS_ATTRIBUTE(ivpu_resume_engine_fops, NULL, ivpu_resume_engine_fn, "0x%02llx\n");
+
+static int dct_active_get(void *data, u64 *active_percent)
+{
+	struct ivpu_device *vdev = data;
+
+	*active_percent = vdev->pm->dct_active_percent;
+
+	return 0;
+}
+
+static int dct_active_set(void *data, u64 active_percent)
+{
+	struct ivpu_device *vdev = data;
+	int ret;
+
+	if (active_percent > 100)
+		return -EINVAL;
+
+	ret = ivpu_rpm_get(vdev);
+	if (ret < 0)
+		return ret;
+
+	if (active_percent)
+		ret = ivpu_pm_dct_enable(vdev, active_percent);
+	else
+		ret = ivpu_pm_dct_disable(vdev);
+
+	ivpu_rpm_put(vdev);
+
+	return ret;
+}
+
+DEFINE_DEBUGFS_ATTRIBUTE(ivpu_dct_fops, dct_active_get, dct_active_set, "%llu\n");
+
+static void print_priority_band(struct seq_file *s, struct ivpu_hw_info *hw,
+				int band, const char *name)
+{
+	seq_printf(s, "%-9s: grace_period %9u process_grace_period %9u process_quantum %9u\n",
+		   name,
+		   hw->hws.grace_period[band],
+		   hw->hws.process_grace_period[band],
+		   hw->hws.process_quantum[band]);
+}
+
+static int priority_bands_show(struct seq_file *s, void *v)
+{
+	struct ivpu_device *vdev = s->private;
+	struct ivpu_hw_info *hw = vdev->hw;
+
+	print_priority_band(s, hw, VPU_JOB_SCHEDULING_PRIORITY_BAND_IDLE, "Idle");
+	print_priority_band(s, hw, VPU_JOB_SCHEDULING_PRIORITY_BAND_NORMAL, "Normal");
+	print_priority_band(s, hw, VPU_JOB_SCHEDULING_PRIORITY_BAND_FOCUS, "Focus");
+	print_priority_band(s, hw, VPU_JOB_SCHEDULING_PRIORITY_BAND_REALTIME, "Realtime");
+
+	return 0;
+}
+
+static int priority_bands_fops_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, priority_bands_show, inode->i_private);
+}
+
+static ssize_t
+priority_bands_fops_write(struct file *file, const char __user *user_buf, size_t size, loff_t *pos)
+{
+	struct seq_file *s = file->private_data;
+	struct ivpu_device *vdev = s->private;
+	char buf[64];
+	u32 grace_period;
+	u32 process_grace_period;
+	u32 process_quantum;
+	u32 band;
+	int ret;
+
+	if (*pos != 0 || size >= sizeof(buf))
+		return -EINVAL;
+
+	ret = simple_write_to_buffer(buf, sizeof(buf) - 1, pos, user_buf, size);
+	if (ret < 0)
+		return ret;
+
+	buf[ret] = '\0';
+	ret = sscanf(buf, "%u %u %u %u", &band, &grace_period, &process_grace_period,
+		     &process_quantum);
+	if (ret != 4)
+		return -EINVAL;
+
+	if (band >= VPU_JOB_SCHEDULING_PRIORITY_BAND_COUNT)
+		return -EINVAL;
+
+	vdev->hw->hws.grace_period[band] = grace_period;
+	vdev->hw->hws.process_grace_period[band] = process_grace_period;
+	vdev->hw->hws.process_quantum[band] = process_quantum;
+
+	return size;
+}
+
+static const struct file_operations ivpu_hws_priority_bands_fops = {
+	.owner = THIS_MODULE,
+	.open = priority_bands_fops_open,
+	.write = priority_bands_fops_write,
+	.read = seq_read,
+	.llseek = seq_lseek,
+	.release = single_release,
+};
+
+void ivpu_debugfs_init(struct ivpu_device *vdev)
+{
+	struct dentry *debugfs_root = vdev->drm.debugfs_root;
+
+	drm_debugfs_add_files(&vdev->drm, vdev_debugfs_list, ARRAY_SIZE(vdev_debugfs_list));
+
+	debugfs_create_file("force_recovery", 0200, debugfs_root, vdev,
+			    &ivpu_force_recovery_fops);
+
+	debugfs_create_file("dvfs_mode", 0644, debugfs_root, vdev,
+			    &dvfs_mode_fops);
+
+	debugfs_create_file("fw_dyndbg", 0200, debugfs_root, vdev,
+			    &fw_dyndbg_fops);
+	debugfs_create_file("fw_log", 0644, debugfs_root, vdev,
+			    &fw_log_fops);
+	debugfs_create_file("fw_trace_destination_mask", 0200, debugfs_root, vdev,
+			    &fw_trace_destination_mask_fops);
+	debugfs_create_file("fw_trace_hw_comp_mask", 0200, debugfs_root, vdev,
+			    &fw_trace_hw_comp_mask_fops);
+	debugfs_create_file("fw_trace_level", 0200, debugfs_root, vdev,
+			    &fw_trace_level_fops);
+	debugfs_create_file("hws_priority_bands", 0200, debugfs_root, vdev,
+			    &ivpu_hws_priority_bands_fops);
+
+	debugfs_create_file("reset_engine", 0200, debugfs_root, vdev,
+			    &ivpu_reset_engine_fops);
+	debugfs_create_file("resume_engine", 0200, debugfs_root, vdev,
+			    &ivpu_resume_engine_fops);
+
+	if (ivpu_hw_ip_gen(vdev) >= IVPU_HW_IP_40XX) {
+		debugfs_create_file("fw_profiling_freq_drive", 0200,
+				    debugfs_root, vdev, &fw_profiling_freq_fops);
+		debugfs_create_file("dct", 0644, debugfs_root, vdev, &ivpu_dct_fops);
+	}
+
+#ifdef CONFIG_FAULT_INJECTION
+	fault_create_debugfs_attr("fail_hw", debugfs_root, &ivpu_hw_failure);
+#endif
+}

linux-7.2.3/drivers/accel/ivpu/ivpu_debugfs.h

@@ -0,0 +1,17 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2020-2023 Intel Corporation
+ */
+
+#ifndef __IVPU_DEBUGFS_H__
+#define __IVPU_DEBUGFS_H__
+
+struct ivpu_device;
+
+#if defined(CONFIG_DEBUG_FS)
+void ivpu_debugfs_init(struct ivpu_device *vdev);
+#else
+static inline void ivpu_debugfs_init(struct ivpu_device *vdev) { }
+#endif
+
+#endif /* __IVPU_DEBUGFS_H__ */

linux-7.2.3/drivers/accel/ivpu/ivpu_drv.c

@@ -0,0 +1,893 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2020-2026 Intel Corporation
+ */
+
+#include <linux/firmware.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/pm_runtime.h>
+#include <linux/workqueue.h>
+#include <generated/utsrelease.h>
+
+#include <drm/drm_accel.h>
+#include <drm/drm_file.h>
+#include <drm/drm_gem.h>
+#include <drm/drm_ioctl.h>
+#include <drm/drm_prime.h>
+
+#include "ivpu_coredump.h"
+#include "ivpu_debugfs.h"
+#include "ivpu_drv.h"
+#include "ivpu_fw.h"
+#include "ivpu_fw_log.h"
+#include "ivpu_gem.h"
+#include "ivpu_hw.h"
+#include "ivpu_ipc.h"
+#include "ivpu_job.h"
+#include "ivpu_jsm_msg.h"
+#include "ivpu_mmu.h"
+#include "ivpu_mmu_context.h"
+#include "ivpu_ms.h"
+#include "ivpu_pm.h"
+#include "ivpu_sysfs.h"
+#include "vpu_boot_api.h"
+
+#ifndef DRIVER_VERSION_STR
+#define DRIVER_VERSION_STR "1.0.0 " UTS_RELEASE
+#endif
+
+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.");
+
+int ivpu_test_mode;
+#if IS_ENABLED(CONFIG_DRM_ACCEL_IVPU_DEBUG)
+module_param_named_unsafe(test_mode, ivpu_test_mode, int, 0644);
+MODULE_PARM_DESC(test_mode, "Test mode mask. See IVPU_TEST_MODE_* macros.");
+#endif
+
+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 NPU 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 NPU frequency");
+
+int ivpu_sched_mode = IVPU_SCHED_MODE_AUTO;
+module_param_named(sched_mode, ivpu_sched_mode, int, 0444);
+MODULE_PARM_DESC(sched_mode, "Scheduler mode: -1 - Use default scheduler, 0 - Use OS scheduler (supported on 27XX - 50XX), 1 - Use HW scheduler");
+
+bool ivpu_disable_mmu_cont_pages;
+module_param_named(disable_mmu_cont_pages, ivpu_disable_mmu_cont_pages, bool, 0444);
+MODULE_PARM_DESC(disable_mmu_cont_pages, "Disable MMU contiguous pages optimization");
+
+bool ivpu_force_snoop;
+module_param_named(force_snoop, ivpu_force_snoop, bool, 0444);
+MODULE_PARM_DESC(force_snoop, "Force snooping for NPU host memory access");
+
+static struct ivpu_user_limits *ivpu_user_limits_alloc(struct ivpu_device *vdev, uid_t uid)
+{
+	struct ivpu_user_limits *limits;
+
+	limits = kzalloc_obj(*limits);
+	if (!limits)
+		return ERR_PTR(-ENOMEM);
+
+	kref_init(&limits->ref);
+	atomic_set(&limits->db_count, 0);
+	limits->vdev = vdev;
+	limits->uid = uid;
+
+	/* Allow root user to allocate all contexts */
+	if (uid == 0) {
+		limits->max_ctx_count = ivpu_get_context_count(vdev);
+		limits->max_db_count = ivpu_get_doorbell_count(vdev);
+	} else {
+		limits->max_ctx_count = ivpu_get_context_count(vdev) / 2;
+		limits->max_db_count = ivpu_get_doorbell_count(vdev) / 2;
+	}
+
+	hash_add(vdev->user_limits, &limits->hash_node, uid);
+
+	return limits;
+}
+
+static struct ivpu_user_limits *ivpu_user_limits_get(struct ivpu_device *vdev)
+{
+	struct ivpu_user_limits *limits;
+	uid_t uid = current_uid().val;
+
+	guard(mutex)(&vdev->user_limits_lock);
+
+	hash_for_each_possible(vdev->user_limits, limits, hash_node, uid) {
+		if (limits->uid == uid) {
+			if (kref_read(&limits->ref) >= limits->max_ctx_count) {
+				ivpu_dbg(vdev, IOCTL, "User %u exceeded max ctx count %u\n", uid,
+					 limits->max_ctx_count);
+				return ERR_PTR(-EMFILE);
+			}
+
+			kref_get(&limits->ref);
+			return limits;
+		}
+	}
+
+	return ivpu_user_limits_alloc(vdev, uid);
+}
+
+static void ivpu_user_limits_release(struct kref *ref)
+{
+	struct ivpu_user_limits *limits = container_of(ref, struct ivpu_user_limits, ref);
+	struct ivpu_device *vdev = limits->vdev;
+
+	lockdep_assert_held(&vdev->user_limits_lock);
+	drm_WARN_ON(&vdev->drm, atomic_read(&limits->db_count));
+	hash_del(&limits->hash_node);
+	kfree(limits);
+}
+
+static void ivpu_user_limits_put(struct ivpu_device *vdev, struct ivpu_user_limits *limits)
+{
+	guard(mutex)(&vdev->user_limits_lock);
+	kref_put(&limits->ref, ivpu_user_limits_release);
+}
+
+struct ivpu_file_priv *ivpu_file_priv_get(struct ivpu_file_priv *file_priv)
+{
+	struct ivpu_device *vdev = file_priv->vdev;
+
+	kref_get(&file_priv->ref);
+
+	ivpu_dbg(vdev, KREF, "file_priv get: ctx %u refcount %u\n",
+		 file_priv->ctx.id, kref_read(&file_priv->ref));
+
+	return file_priv;
+}
+
+static void file_priv_unbind(struct ivpu_device *vdev, struct ivpu_file_priv *file_priv)
+{
+	mutex_lock(&file_priv->lock);
+	if (file_priv->bound) {
+		ivpu_dbg(vdev, FILE, "file_priv unbind: ctx %u\n", file_priv->ctx.id);
+
+		ivpu_cmdq_release_all_locked(file_priv);
+		ivpu_bo_unbind_all_bos_from_context(vdev, &file_priv->ctx);
+		ivpu_mmu_context_fini(vdev, &file_priv->ctx);
+		file_priv->bound = false;
+		drm_WARN_ON(&vdev->drm, !xa_erase_irq(&vdev->context_xa, file_priv->ctx.id));
+	}
+	mutex_unlock(&file_priv->lock);
+}
+
+static void file_priv_release(struct kref *ref)
+{
+	struct ivpu_file_priv *file_priv = container_of(ref, struct ivpu_file_priv, ref);
+	struct ivpu_device *vdev = file_priv->vdev;
+
+	ivpu_dbg(vdev, FILE, "file_priv release: ctx %u bound %d\n",
+		 file_priv->ctx.id, (bool)file_priv->bound);
+
+	pm_runtime_get_sync(vdev->drm.dev);
+	mutex_lock(&vdev->context_list_lock);
+	file_priv_unbind(vdev, file_priv);
+	drm_WARN_ON(&vdev->drm, !xa_empty(&file_priv->cmdq_xa));
+	xa_destroy(&file_priv->cmdq_xa);
+	mutex_unlock(&vdev->context_list_lock);
+	pm_runtime_put_autosuspend(vdev->drm.dev);
+
+	ivpu_user_limits_put(vdev, file_priv->user_limits);
+	mutex_destroy(&file_priv->ms_lock);
+	mutex_destroy(&file_priv->lock);
+	kfree(file_priv);
+}
+
+void ivpu_file_priv_put(struct ivpu_file_priv **link)
+{
+	struct ivpu_file_priv *file_priv = *link;
+	struct ivpu_device *vdev = file_priv->vdev;
+
+	ivpu_dbg(vdev, KREF, "file_priv put: ctx %u refcount %u\n",
+		 file_priv->ctx.id, kref_read(&file_priv->ref));
+
+	*link = NULL;
+	kref_put(&file_priv->ref, file_priv_release);
+}
+
+bool ivpu_is_capable(struct ivpu_device *vdev, u32 capability)
+{
+	switch (capability) {
+	case DRM_IVPU_CAP_METRIC_STREAMER:
+		return true;
+	case DRM_IVPU_CAP_DMA_MEMORY_RANGE:
+		return true;
+	case DRM_IVPU_CAP_BO_CREATE_FROM_USERPTR:
+		return true;
+	case DRM_IVPU_CAP_MANAGE_CMDQ:
+		return vdev->fw->sched_mode == VPU_SCHEDULING_MODE_HW;
+	default:
+		return false;
+	}
+}
+
+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;
+	int idx;
+
+	if (!drm_dev_enter(dev, &idx))
+		return -ENODEV;
+
+	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_btrs_pll_ratio_to_hz(vdev, vdev->hw->pll.max_ratio);
+		break;
+	case DRM_IVPU_PARAM_NUM_CONTEXTS:
+		args->value = file_priv->user_limits->max_ctx_count;
+		break;
+	case DRM_IVPU_PARAM_CONTEXT_BASE_ADDRESS:
+		args->value = vdev->hw->ranges.user.start;
+		break;
+	case DRM_IVPU_PARAM_CONTEXT_ID:
+		args->value = file_priv->ctx.id;
+		break;
+	case DRM_IVPU_PARAM_FW_API_VERSION:
+		if (args->index < VPU_FW_API_VER_NUM) {
+			struct vpu_firmware_header *fw_hdr;
+
+			fw_hdr = (struct vpu_firmware_header *)vdev->fw->file->data;
+			args->value = fw_hdr->api_version[args->index];
+		} else {
+			ret = -EINVAL;
+		}
+		break;
+	case DRM_IVPU_PARAM_ENGINE_HEARTBEAT:
+		ret = ivpu_jsm_get_heartbeat(vdev, args->index, &args->value);
+		break;
+	case DRM_IVPU_PARAM_UNIQUE_INFERENCE_ID:
+		args->value = (u64)atomic64_inc_return(&vdev->unique_id_counter);
+		break;
+	case DRM_IVPU_PARAM_TILE_CONFIG:
+		args->value = vdev->hw->tile_fuse;
+		break;
+	case DRM_IVPU_PARAM_SKU:
+		args->value = vdev->hw->sku;
+		break;
+	case DRM_IVPU_PARAM_CAPABILITIES:
+		args->value = ivpu_is_capable(vdev, args->index);
+		break;
+	case DRM_IVPU_PARAM_PREEMPT_BUFFER_SIZE:
+		args->value = ivpu_fw_preempt_buf_size(vdev);
+		break;
+	default:
+		ret = -EINVAL;
+		break;
+	}
+
+	drm_dev_exit(idx);
+	return ret;
+}
+
+static int ivpu_set_param_ioctl(struct drm_device *dev, void *data, struct drm_file *file)
+{
+	struct drm_ivpu_param *args = data;
+	int ret = 0;
+
+	switch (args->param) {
+	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;
+	struct ivpu_user_limits *limits;
+	u32 ctx_id;
+	int idx, ret;
+
+	if (!drm_dev_enter(dev, &idx))
+		return -ENODEV;
+
+	limits = ivpu_user_limits_get(vdev);
+	if (IS_ERR(limits)) {
+		ret = PTR_ERR(limits);
+		goto err_dev_exit;
+	}
+
+	file_priv = kzalloc_obj(*file_priv);
+	if (!file_priv) {
+		ret = -ENOMEM;
+		goto err_user_limits_put;
+	}
+
+	INIT_LIST_HEAD(&file_priv->ms_instance_list);
+
+	file_priv->vdev = vdev;
+	file_priv->bound = true;
+	file_priv->user_limits = limits;
+	kref_init(&file_priv->ref);
+	mutex_init(&file_priv->lock);
+	mutex_init(&file_priv->ms_lock);
+
+	mutex_lock(&vdev->context_list_lock);
+
+	ret = xa_alloc_irq(&vdev->context_xa, &ctx_id, file_priv,
+			   vdev->context_xa_limit, GFP_KERNEL);
+	if (ret) {
+		ivpu_err(vdev, "Failed to allocate context id: %d\n", ret);
+		goto err_unlock;
+	}
+
+	ivpu_mmu_context_init(vdev, &file_priv->ctx, ctx_id);
+
+	file_priv->job_limit.min = FIELD_PREP(IVPU_JOB_ID_CONTEXT_MASK, (file_priv->ctx.id - 1));
+	file_priv->job_limit.max = file_priv->job_limit.min | IVPU_JOB_ID_JOB_MASK;
+
+	xa_init_flags(&file_priv->cmdq_xa, XA_FLAGS_ALLOC1);
+	file_priv->cmdq_limit.min = IVPU_CMDQ_MIN_ID;
+	file_priv->cmdq_limit.max = IVPU_CMDQ_MAX_ID;
+
+	mutex_unlock(&vdev->context_list_lock);
+	drm_dev_exit(idx);
+
+	file->driver_priv = file_priv;
+
+	ivpu_dbg(vdev, FILE, "file_priv create: ctx %u process %s pid %d\n",
+		 ctx_id, current->comm, task_pid_nr(current));
+
+	return 0;
+
+err_unlock:
+	mutex_unlock(&vdev->context_list_lock);
+	mutex_destroy(&file_priv->ms_lock);
+	mutex_destroy(&file_priv->lock);
+	kfree(file_priv);
+err_user_limits_put:
+	ivpu_user_limits_put(vdev, limits);
+err_dev_exit:
+	drm_dev_exit(idx);
+	return ret;
+}
+
+static void ivpu_postclose(struct drm_device *dev, struct drm_file *file)
+{
+	struct ivpu_file_priv *file_priv = file->driver_priv;
+	struct ivpu_device *vdev = to_ivpu_device(dev);
+
+	ivpu_dbg(vdev, FILE, "file_priv close: ctx %u process %s pid %d\n",
+		 file_priv->ctx.id, current->comm, task_pid_nr(current));
+
+	ivpu_ms_cleanup(file_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),
+	DRM_IOCTL_DEF_DRV(IVPU_BO_CREATE, ivpu_bo_create_ioctl, 0),
+	DRM_IOCTL_DEF_DRV(IVPU_BO_INFO, ivpu_bo_info_ioctl, 0),
+	DRM_IOCTL_DEF_DRV(IVPU_SUBMIT, ivpu_submit_ioctl, 0),
+	DRM_IOCTL_DEF_DRV(IVPU_BO_WAIT, ivpu_bo_wait_ioctl, 0),
+	DRM_IOCTL_DEF_DRV(IVPU_METRIC_STREAMER_START, ivpu_ms_start_ioctl, 0),
+	DRM_IOCTL_DEF_DRV(IVPU_METRIC_STREAMER_GET_DATA, ivpu_ms_get_data_ioctl, 0),
+	DRM_IOCTL_DEF_DRV(IVPU_METRIC_STREAMER_STOP, ivpu_ms_stop_ioctl, 0),
+	DRM_IOCTL_DEF_DRV(IVPU_METRIC_STREAMER_GET_INFO, ivpu_ms_get_info_ioctl, 0),
+	DRM_IOCTL_DEF_DRV(IVPU_CMDQ_CREATE, ivpu_cmdq_create_ioctl, 0),
+	DRM_IOCTL_DEF_DRV(IVPU_CMDQ_DESTROY, ivpu_cmdq_destroy_ioctl, 0),
+	DRM_IOCTL_DEF_DRV(IVPU_CMDQ_SUBMIT, ivpu_cmdq_submit_ioctl, 0),
+	DRM_IOCTL_DEF_DRV(IVPU_BO_CREATE_FROM_USERPTR, ivpu_bo_create_from_userptr_ioctl, 0),
+};
+
+static int ivpu_wait_for_ready(struct ivpu_device *vdev)
+{
+	struct ivpu_ipc_consumer cons;
+	struct ivpu_ipc_hdr ipc_hdr;
+	unsigned long timeout;
+	int ret;
+
+	if (ivpu_test_mode & IVPU_TEST_MODE_FW_TEST)
+		return 0;
+
+	ivpu_ipc_consumer_add(vdev, &cons, IVPU_IPC_CHAN_BOOT_MSG, NULL);
+
+	timeout = jiffies + msecs_to_jiffies(vdev->timeout.boot);
+	while (1) {
+		ivpu_ipc_irq_handler(vdev);
+		ret = ivpu_ipc_receive(vdev, &cons, &ipc_hdr, NULL, 0);
+		if (ret != -ETIMEDOUT || time_after_eq(jiffies, timeout))
+			break;
+
+		cond_resched();
+	}
+
+	ivpu_ipc_consumer_del(vdev, &cons);
+
+	if (!ret && ipc_hdr.data_addr != IVPU_IPC_BOOT_MSG_DATA_ADDR) {
+		ivpu_err(vdev, "Invalid NPU ready message: 0x%x\n", ipc_hdr.data_addr);
+		return -EIO;
+	}
+
+	if (!ret)
+		ivpu_dbg(vdev, PM, "NPU ready message received successfully\n");
+
+	return ret;
+}
+
+static int ivpu_hw_sched_init(struct ivpu_device *vdev)
+{
+	int ret = 0;
+
+	if (vdev->fw->sched_mode == VPU_SCHEDULING_MODE_HW) {
+		ret = ivpu_jsm_hws_setup_priority_bands(vdev);
+		if (ret) {
+			ivpu_err(vdev, "Failed to enable hw scheduler: %d", ret);
+			return ret;
+		}
+	}
+
+	return ret;
+}
+
+/**
+ * ivpu_boot() - Start VPU firmware
+ * @vdev: VPU device
+ *
+ * This function is paired with ivpu_shutdown() but it doesn't power up the
+ * VPU because power up has to be called very early in ivpu_probe().
+ */
+int ivpu_boot(struct ivpu_device *vdev)
+{
+	int ret;
+
+	drm_WARN_ON(&vdev->drm, atomic_read(&vdev->job_timeout_counter));
+	drm_WARN_ON(&vdev->drm, !xa_empty(&vdev->submitted_jobs_xa));
+
+	ivpu_fw_boot_params_setup(vdev, ivpu_bo_vaddr(vdev->fw->mem_bp));
+	vdev->fw->last_boot_mode = vdev->fw->next_boot_mode;
+
+	ret = ivpu_hw_boot_fw(vdev);
+	if (ret) {
+		ivpu_err(vdev, "Failed to start the firmware: %d\n", ret);
+		return ret;
+	}
+
+	ret = ivpu_wait_for_ready(vdev);
+	if (ret) {
+		ivpu_err(vdev, "Failed to boot the firmware: %d\n", ret);
+		goto err_diagnose_failure;
+	}
+	ivpu_hw_irq_clear(vdev);
+	enable_irq(vdev->irq);
+	ivpu_hw_irq_enable(vdev);
+	ivpu_ipc_enable(vdev);
+
+	if (!ivpu_fw_is_warm_boot(vdev)) {
+		ret = ivpu_pm_dct_init(vdev);
+		if (ret)
+			goto err_disable_ipc;
+
+		ret = ivpu_hw_sched_init(vdev);
+		if (ret)
+			goto err_disable_ipc;
+
+		ret = ivpu_hw_btrs_cfg_freq_init(vdev);
+		if (ret)
+			goto err_disable_ipc;
+	}
+
+	return 0;
+
+err_disable_ipc:
+	ivpu_ipc_disable(vdev);
+	ivpu_hw_irq_disable(vdev);
+	disable_irq(vdev->irq);
+err_diagnose_failure:
+	ivpu_hw_diagnose_failure(vdev);
+	ivpu_mmu_evtq_dump(vdev);
+	ivpu_dev_coredump(vdev);
+	return ret;
+}
+
+void ivpu_prepare_for_reset(struct ivpu_device *vdev)
+{
+	ivpu_hw_irq_disable(vdev);
+	disable_irq(vdev->irq);
+	flush_work(&vdev->irq_ipc_work);
+	flush_work(&vdev->irq_dct_work);
+	flush_work(&vdev->context_abort_work);
+	ivpu_ipc_disable(vdev);
+	ivpu_mmu_disable(vdev);
+}
+
+int ivpu_shutdown(struct ivpu_device *vdev)
+{
+	int ret;
+
+	/* Save PCI state before powering down as it sometimes gets corrupted if NPU hangs */
+	pci_save_state(to_pci_dev(vdev->drm.dev));
+
+	ret = ivpu_hw_power_down(vdev);
+	if (ret)
+		ivpu_warn(vdev, "Failed to power down HW: %d\n", ret);
+
+	pci_set_power_state(to_pci_dev(vdev->drm.dev), PCI_D3hot);
+
+	return ret;
+}
+
+static const struct file_operations ivpu_fops = {
+	.owner = THIS_MODULE,
+	DRM_ACCEL_FOPS,
+#ifdef CONFIG_PROC_FS
+	.show_fdinfo = drm_show_fdinfo,
+#endif
+};
+
+static int ivpu_gem_prime_handle_to_fd(struct drm_device *dev, struct drm_file *file_priv,
+				       u32 handle, u32 flags, int *prime_fd)
+{
+	struct drm_gem_object *obj;
+
+	obj = drm_gem_object_lookup(file_priv, handle);
+	if (!obj)
+		return -ENOENT;
+
+	if (drm_gem_is_imported(obj)) {
+		/* Do not allow re-exporting */
+		drm_gem_object_put(obj);
+		return -EOPNOTSUPP;
+	}
+
+	drm_gem_object_put(obj);
+
+	return drm_gem_prime_handle_to_fd(dev, file_priv, handle, flags, prime_fd);
+}
+
+static const struct drm_driver driver = {
+	.driver_features = DRIVER_GEM | DRIVER_COMPUTE_ACCEL,
+
+	.open = ivpu_open,
+	.postclose = ivpu_postclose,
+
+	.gem_create_object = ivpu_gem_create_object,
+	.gem_prime_import = ivpu_gem_prime_import,
+	.prime_handle_to_fd = ivpu_gem_prime_handle_to_fd,
+
+	.ioctls = ivpu_drm_ioctls,
+	.num_ioctls = ARRAY_SIZE(ivpu_drm_ioctls),
+	.fops = &ivpu_fops,
+#ifdef CONFIG_PROC_FS
+	.show_fdinfo = drm_show_memory_stats,
+#endif
+
+	.name = DRIVER_NAME,
+	.desc = DRIVER_DESC,
+
+	.major = 1,
+};
+
+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;
+	}
+
+	INIT_WORK(&vdev->irq_ipc_work, ivpu_ipc_irq_work_fn);
+	INIT_WORK(&vdev->irq_dct_work, ivpu_pm_irq_dct_work_fn);
+	INIT_WORK(&vdev->context_abort_work, ivpu_context_abort_work_fn);
+
+	ivpu_irq_handlers_init(vdev);
+
+	vdev->irq = pci_irq_vector(pdev, 0);
+
+	ret = devm_request_irq(vdev->drm.dev, vdev->irq, ivpu_hw_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(vdev->hw->dma_bits));
+	if (ret) {
+		ivpu_err(vdev, "Failed to set DMA mask: %d\n", ret);
+		return ret;
+	}
+	dma_set_max_seg_size(vdev->drm.dev, UINT_MAX);
+
+	/* Clear any pending errors */
+	pcie_capability_clear_word(pdev, PCI_EXP_DEVSTA, 0x3f);
+
+	/* NPU does not require 10m D3hot delay */
+	pdev->d3hot_delay = 0;
+
+	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->mmu = drmm_kzalloc(&vdev->drm, sizeof(*vdev->mmu), GFP_KERNEL);
+	if (!vdev->mmu)
+		return -ENOMEM;
+
+	vdev->fw = drmm_kzalloc(&vdev->drm, sizeof(*vdev->fw), GFP_KERNEL);
+	if (!vdev->fw)
+		return -ENOMEM;
+
+	vdev->ipc = drmm_kzalloc(&vdev->drm, sizeof(*vdev->ipc), GFP_KERNEL);
+	if (!vdev->ipc)
+		return -ENOMEM;
+
+	vdev->pm = drmm_kzalloc(&vdev->drm, sizeof(*vdev->pm), GFP_KERNEL);
+	if (!vdev->pm)
+		return -ENOMEM;
+
+	if (ivpu_hw_ip_gen(vdev) >= IVPU_HW_IP_40XX)
+		vdev->hw->dma_bits = 48;
+	else
+		vdev->hw->dma_bits = 38;
+
+	vdev->platform = IVPU_PLATFORM_INVALID;
+	vdev->context_xa_limit.min = IVPU_USER_CONTEXT_MIN_SSID;
+	vdev->context_xa_limit.max = IVPU_USER_CONTEXT_MAX_SSID;
+	atomic64_set(&vdev->unique_id_counter, 0);
+	atomic_set(&vdev->job_timeout_counter, 0);
+	atomic_set(&vdev->faults_detected, 0);
+	xa_init_flags(&vdev->context_xa, XA_FLAGS_ALLOC | XA_FLAGS_LOCK_IRQ);
+	xa_init_flags(&vdev->submitted_jobs_xa, XA_FLAGS_ALLOC1);
+	xa_init_flags(&vdev->db_xa, XA_FLAGS_ALLOC1);
+	INIT_LIST_HEAD(&vdev->bo_list);
+	hash_init(vdev->user_limits);
+
+	vdev->db_limit.min = IVPU_MIN_DB;
+	vdev->db_limit.max = IVPU_MAX_DB;
+
+	ret = drmm_mutex_init(&vdev->drm, &vdev->context_list_lock);
+	if (ret)
+		goto err_xa_destroy;
+
+	ret = drmm_mutex_init(&vdev->drm, &vdev->user_limits_lock);
+	if (ret)
+		goto err_xa_destroy;
+
+	ret = drmm_mutex_init(&vdev->drm, &vdev->submitted_jobs_lock);
+	if (ret)
+		goto err_xa_destroy;
+
+	ret = drmm_mutex_init(&vdev->drm, &vdev->bo_list_lock);
+	if (ret)
+		goto err_xa_destroy;
+
+	ret = ivpu_pci_init(vdev);
+	if (ret)
+		goto err_xa_destroy;
+
+	ret = ivpu_irq_init(vdev);
+	if (ret)
+		goto err_xa_destroy;
+
+	/* Init basic HW info based on buttress registers which are accessible before power up */
+	ret = ivpu_hw_init(vdev);
+	if (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)
+		goto err_shutdown;
+
+	ivpu_mmu_global_context_init(vdev);
+
+	ret = ivpu_mmu_init(vdev);
+	if (ret)
+		goto err_mmu_gctx_fini;
+
+	ret = ivpu_mmu_reserved_context_init(vdev);
+	if (ret)
+		goto err_mmu_gctx_fini;
+
+	ret = ivpu_fw_init(vdev);
+	if (ret)
+		goto err_mmu_rctx_fini;
+
+	ret = ivpu_ipc_init(vdev);
+	if (ret)
+		goto err_fw_fini;
+
+	ivpu_pm_init(vdev);
+
+	ret = ivpu_boot(vdev);
+	if (ret)
+		goto err_ipc_fini;
+
+	ivpu_job_done_consumer_init(vdev);
+	ivpu_pm_enable(vdev);
+
+	return 0;
+
+err_ipc_fini:
+	ivpu_ipc_fini(vdev);
+err_fw_fini:
+	ivpu_fw_fini(vdev);
+err_mmu_rctx_fini:
+	ivpu_mmu_reserved_context_fini(vdev);
+err_mmu_gctx_fini:
+	ivpu_mmu_global_context_fini(vdev);
+err_shutdown:
+	ivpu_shutdown(vdev);
+err_xa_destroy:
+	xa_destroy(&vdev->db_xa);
+	xa_destroy(&vdev->submitted_jobs_xa);
+	xa_destroy(&vdev->context_xa);
+	return ret;
+}
+
+static void ivpu_bo_unbind_all_user_contexts(struct ivpu_device *vdev)
+{
+	struct ivpu_file_priv *file_priv;
+	unsigned long ctx_id;
+
+	mutex_lock(&vdev->context_list_lock);
+
+	xa_for_each(&vdev->context_xa, ctx_id, file_priv)
+		file_priv_unbind(vdev, file_priv);
+
+	mutex_unlock(&vdev->context_list_lock);
+}
+
+static void ivpu_dev_fini(struct ivpu_device *vdev)
+{
+	ivpu_jobs_abort_all(vdev);
+	ivpu_pm_disable_recovery(vdev);
+	ivpu_pm_disable(vdev);
+	ivpu_prepare_for_reset(vdev);
+	ivpu_shutdown(vdev);
+
+	ivpu_ms_cleanup_all(vdev);
+	ivpu_job_done_consumer_fini(vdev);
+	ivpu_bo_unbind_all_user_contexts(vdev);
+
+	ivpu_ipc_fini(vdev);
+	ivpu_fw_fini(vdev);
+	ivpu_mmu_reserved_context_fini(vdev);
+	ivpu_mmu_global_context_fini(vdev);
+
+	drm_WARN_ON(&vdev->drm, !xa_empty(&vdev->db_xa));
+	xa_destroy(&vdev->db_xa);
+	drm_WARN_ON(&vdev->drm, !xa_empty(&vdev->submitted_jobs_xa));
+	xa_destroy(&vdev->submitted_jobs_xa);
+	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) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_ARL) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_LNL) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_PTL_P) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_WCL) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_NVL) },
+	{}
+};
+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)
+		return ret;
+
+	ivpu_debugfs_init(vdev);
+	ivpu_sysfs_init(vdev);
+
+	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_unplug(&vdev->drm);
+	ivpu_dev_fini(vdev);
+}
+
+static const struct dev_pm_ops ivpu_drv_pci_pm = {
+	SET_SYSTEM_SLEEP_PM_OPS(ivpu_pm_suspend_cb, ivpu_pm_resume_cb)
+	SET_RUNTIME_PM_OPS(ivpu_pm_runtime_suspend_cb, ivpu_pm_runtime_resume_cb, NULL)
+};
+
+static const struct pci_error_handlers ivpu_drv_pci_err = {
+	.reset_prepare = ivpu_pm_reset_prepare_cb,
+	.reset_done = ivpu_pm_reset_done_cb,
+};
+
+static struct pci_driver ivpu_pci_driver = {
+	.name = KBUILD_MODNAME,
+	.id_table = ivpu_pci_ids,
+	.probe = ivpu_probe,
+	.remove = ivpu_remove,
+	.driver = {
+		.pm = &ivpu_drv_pci_pm,
+	},
+	.err_handler = &ivpu_drv_pci_err,
+};
+
+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);

linux-7.2.3/drivers/accel/ivpu/ivpu_drv.h

@@ -0,0 +1,333 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2020-2026 Intel Corporation
+ */
+
+#ifndef __IVPU_DRV_H__
+#define __IVPU_DRV_H__
+
+#include <drm/drm_device.h>
+#include <drm/drm_drv.h>
+#include <drm/drm_managed.h>
+#include <drm/drm_mm.h>
+#include <drm/drm_print.h>
+
+#include <linux/hashtable.h>
+#include <linux/pci.h>
+#include <linux/xarray.h>
+#include <uapi/drm/ivpu_accel.h>
+
+#include "ivpu_mmu_context.h"
+#include "ivpu_ipc.h"
+
+#define DRIVER_NAME "intel_vpu"
+#define DRIVER_DESC "Driver for Intel NPU (Neural Processing Unit)"
+
+#define PCI_DEVICE_ID_MTL	0x7d1d
+#define PCI_DEVICE_ID_ARL	0xad1d
+#define PCI_DEVICE_ID_LNL	0x643e
+#define PCI_DEVICE_ID_PTL_P	0xb03e
+#define PCI_DEVICE_ID_WCL	0xfd3e
+#define PCI_DEVICE_ID_NVL	0xd71d
+
+#define IVPU_HW_IP_37XX 37
+#define IVPU_HW_IP_40XX 40
+#define IVPU_HW_IP_50XX 50
+#define IVPU_HW_IP_60XX 60
+
+#define IVPU_HW_IP_REV_LNL_B0 4
+#define IVPU_HW_IP_REV_NVL_A0 0
+
+#define IVPU_HW_BTRS_MTL 1
+#define IVPU_HW_BTRS_LNL 2
+
+#define IVPU_GLOBAL_CONTEXT_MMU_SSID   0
+/* SSID 1 is used by the VPU to represent reserved context */
+#define IVPU_RESERVED_CONTEXT_MMU_SSID 1
+#define IVPU_USER_CONTEXT_MIN_SSID     2
+#define IVPU_USER_CONTEXT_MAX_SSID     (IVPU_USER_CONTEXT_MIN_SSID + 128)
+
+#define IVPU_MIN_DB 1
+#define IVPU_MAX_DB 255
+
+#define IVPU_JOB_ID_JOB_MASK		GENMASK(7, 0)
+#define IVPU_JOB_ID_CONTEXT_MASK	GENMASK(31, 8)
+
+#define IVPU_CMDQ_MIN_ID 1
+#define IVPU_CMDQ_MAX_ID 255
+
+#define IVPU_PLATFORM_SILICON 0
+#define IVPU_PLATFORM_SIMICS  2
+#define IVPU_PLATFORM_FPGA    3
+#define IVPU_PLATFORM_HSLE    4
+#define IVPU_PLATFORM_INVALID 8
+
+#define IVPU_SCHED_MODE_AUTO -1
+
+#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_DBG_MMU_MAP BIT(13)
+#define IVPU_DBG_IOCTL   BIT(14)
+
+#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)
+
+#define IVPU_PRINT_WA(wa_name) do {					\
+	if (IVPU_WA(wa_name))						\
+		ivpu_dbg(vdev, MISC, "Using WA: " #wa_name "\n");	\
+} while (0)
+
+struct ivpu_wa_table {
+	bool punit_disabled;
+	bool clear_runtime_mem;
+	bool interrupt_clear_with_0;
+	bool disable_clock_relinquish;
+	bool wp0_during_power_up;
+	bool disable_d0i2;
+};
+
+struct ivpu_hw_info;
+struct ivpu_mmu_info;
+struct ivpu_fw_info;
+struct ivpu_ipc_info;
+struct ivpu_pm_info;
+
+struct ivpu_user_limits {
+	struct hlist_node hash_node;
+	struct ivpu_device *vdev;
+	struct kref ref;
+	u32 max_ctx_count;
+	u32 max_db_count;
+	u32 uid;
+	atomic_t db_count;
+};
+
+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 ivpu_mmu_info *mmu;
+	struct ivpu_fw_info *fw;
+	struct ivpu_ipc_info *ipc;
+	struct ivpu_pm_info *pm;
+
+	struct ivpu_mmu_context gctx;
+	struct ivpu_mmu_context rctx;
+	struct mutex context_list_lock; /* Protects user context addition/removal */
+	struct xarray context_xa;
+	struct xa_limit context_xa_limit;
+	DECLARE_HASHTABLE(user_limits, 8);
+	struct mutex user_limits_lock; /* Protects user_limits */
+
+	struct xarray db_xa;
+	struct xa_limit db_limit;
+	u32 db_next;
+
+	struct work_struct irq_ipc_work;
+	struct work_struct irq_dct_work;
+	struct work_struct context_abort_work;
+
+	struct mutex bo_list_lock; /* Protects bo_list */
+	struct list_head bo_list;
+
+	struct mutex submitted_jobs_lock; /* Protects submitted_jobs */
+	struct xarray submitted_jobs_xa;
+	struct ivpu_ipc_consumer job_done_consumer;
+	atomic_t job_timeout_counter;
+	atomic_t faults_detected;
+
+	atomic64_t unique_id_counter;
+
+	ktime_t busy_start_ts;
+	ktime_t busy_time;
+
+	struct {
+		int boot;
+		int jsm;
+		int tdr;
+		int inference;
+		int autosuspend;
+		int d0i3_entry_msg;
+		int state_dump_msg;
+	} 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;
+	struct mutex lock; /* Protects cmdq */
+	struct xarray cmdq_xa;
+	struct ivpu_mmu_context ctx;
+	struct mutex ms_lock; /* Protects ms_instance_list, ms_info_bo */
+	struct list_head ms_instance_list;
+	struct ivpu_bo *ms_info_bo;
+	struct xa_limit job_limit;
+	struct ivpu_user_limits *user_limits;
+	u32 job_id_next;
+	struct xa_limit cmdq_limit;
+	u32 cmdq_id_next;
+	bool has_mmu_faults;
+	bool bound;
+	bool aborted;
+};
+
+extern int ivpu_dbg_mask;
+extern u8 ivpu_pll_min_ratio;
+extern u8 ivpu_pll_max_ratio;
+extern int ivpu_sched_mode;
+extern bool ivpu_disable_mmu_cont_pages;
+extern bool ivpu_force_snoop;
+
+#define IVPU_TEST_MODE_FW_TEST            BIT(0)
+#define IVPU_TEST_MODE_NULL_HW            BIT(1)
+#define IVPU_TEST_MODE_NULL_SUBMISSION    BIT(2)
+#define IVPU_TEST_MODE_MIP_DISABLE        BIT(6)
+#define IVPU_TEST_MODE_DISABLE_TIMEOUTS   BIT(8)
+#define IVPU_TEST_MODE_TURBO_ENABLE       BIT(9)
+#define IVPU_TEST_MODE_TURBO_DISABLE      BIT(10)
+#define IVPU_TEST_MODE_CLK_RELINQ_DISABLE BIT(11)
+#define IVPU_TEST_MODE_CLK_RELINQ_ENABLE  BIT(12)
+#define IVPU_TEST_MODE_D0I2_DISABLE       BIT(13)
+extern int ivpu_test_mode;
+
+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_boot(struct ivpu_device *vdev);
+int ivpu_shutdown(struct ivpu_device *vdev);
+void ivpu_prepare_for_reset(struct ivpu_device *vdev);
+bool ivpu_is_capable(struct ivpu_device *vdev, u32 capability);
+
+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 int ivpu_hw_ip_gen(struct ivpu_device *vdev)
+{
+	switch (ivpu_device_id(vdev)) {
+	case PCI_DEVICE_ID_MTL:
+	case PCI_DEVICE_ID_ARL:
+		return IVPU_HW_IP_37XX;
+	case PCI_DEVICE_ID_LNL:
+		return IVPU_HW_IP_40XX;
+	case PCI_DEVICE_ID_PTL_P:
+	case PCI_DEVICE_ID_WCL:
+		return IVPU_HW_IP_50XX;
+	case PCI_DEVICE_ID_NVL:
+		return IVPU_HW_IP_60XX;
+	default:
+		dump_stack();
+		ivpu_err(vdev, "Unknown NPU IP generation\n");
+		return 0;
+	}
+}
+
+static inline int ivpu_hw_btrs_gen(struct ivpu_device *vdev)
+{
+	switch (ivpu_device_id(vdev)) {
+	case PCI_DEVICE_ID_MTL:
+	case PCI_DEVICE_ID_ARL:
+		return IVPU_HW_BTRS_MTL;
+	case PCI_DEVICE_ID_LNL:
+	case PCI_DEVICE_ID_PTL_P:
+	case PCI_DEVICE_ID_WCL:
+	case PCI_DEVICE_ID_NVL:
+		return IVPU_HW_BTRS_LNL;
+	default:
+		dump_stack();
+		ivpu_err(vdev, "Unknown buttress generation\n");
+		return 0;
+	}
+}
+
+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_doorbell_count(struct ivpu_device *vdev)
+{
+	struct xa_limit db_limit = vdev->db_limit;
+
+	return (db_limit.max - db_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 ||
+	       ivpu_get_platform(vdev) == IVPU_PLATFORM_HSLE;
+}
+
+static inline bool ivpu_is_force_snoop_enabled(struct ivpu_device *vdev)
+{
+	return ivpu_force_snoop;
+}
+
+#endif /* __IVPU_DRV_H__ */

linux-7.2.3/drivers/accel/ivpu/ivpu_fw.c

@@ -0,0 +1,724 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2020-2026 Intel Corporation
+ */
+
+#include <linux/firmware.h>
+#include <linux/highmem.h>
+#include <linux/moduleparam.h>
+#include <linux/pci.h>
+
+#include "vpu_boot_api.h"
+#include "ivpu_drv.h"
+#include "ivpu_fw.h"
+#include "ivpu_fw_log.h"
+#include "ivpu_gem.h"
+#include "ivpu_hw.h"
+#include "ivpu_ipc.h"
+#include "ivpu_pm.h"
+
+#define FW_SHAVE_NN_MAX_SIZE	SZ_2M
+#define FW_FILE_IMAGE_OFFSET	(VPU_FW_HEADER_SIZE + FW_VERSION_HEADER_SIZE)
+#define FW_PREEMPT_BUF_MIN_SIZE SZ_4K
+#define FW_PREEMPT_BUF_MAX_SIZE SZ_32M
+
+#define WATCHDOG_MSS_REDIRECT	32
+#define WATCHDOG_NCE_REDIRECT	33
+
+#define ADDR_TO_L2_CACHE_CFG(addr) ((addr) >> 31)
+
+/* Check if FW API is compatible with the driver */
+#define IVPU_FW_CHECK_API_COMPAT(vdev, fw_hdr, name, min_major) \
+	ivpu_fw_check_api(vdev, fw_hdr, #name, \
+			  VPU_##name##_API_VER_INDEX, \
+			  VPU_##name##_API_VER_MAJOR, \
+			  VPU_##name##_API_VER_MINOR, min_major)
+
+/* Check if API version is lower that the given version */
+#define IVPU_FW_CHECK_API_VER_LT(vdev, fw_hdr, name, major, minor) \
+	ivpu_fw_check_api_ver_lt(vdev, fw_hdr, #name, VPU_##name##_API_VER_INDEX, major, minor)
+
+#define IVPU_FOCUS_PRESENT_TIMER_MS 1000
+
+static char *ivpu_firmware;
+#if IS_ENABLED(CONFIG_DRM_ACCEL_IVPU_DEBUG)
+module_param_named_unsafe(firmware, ivpu_firmware, charp, 0644);
+MODULE_PARM_DESC(firmware, "NPU firmware binary in /lib/firmware/..");
+#endif
+
+static struct {
+	int gen;
+	const char *name;
+} fw_names[] = {
+	{ IVPU_HW_IP_37XX, "intel/vpu/vpu_37xx_v1.bin" },
+	{ IVPU_HW_IP_37XX, "intel/vpu/vpu_37xx_v0.0.bin" },
+	{ IVPU_HW_IP_40XX, "intel/vpu/vpu_40xx_v1.bin" },
+	{ IVPU_HW_IP_40XX, "intel/vpu/vpu_40xx_v0.0.bin" },
+	{ IVPU_HW_IP_50XX, "intel/vpu/vpu_50xx_v1.bin" },
+	{ IVPU_HW_IP_50XX, "intel/vpu/vpu_50xx_v0.0.bin" },
+	{ IVPU_HW_IP_60XX, "intel/vpu/vpu_60xx_v1.bin" },
+};
+
+/* Production fw_names from the table above */
+MODULE_FIRMWARE("intel/vpu/vpu_37xx_v1.bin");
+MODULE_FIRMWARE("intel/vpu/vpu_40xx_v1.bin");
+MODULE_FIRMWARE("intel/vpu/vpu_50xx_v1.bin");
+MODULE_FIRMWARE("intel/vpu/vpu_60xx_v1.bin");
+
+static int ivpu_fw_request(struct ivpu_device *vdev)
+{
+	int ret = -ENOENT;
+	int i;
+
+	if (ivpu_firmware) {
+		ret = request_firmware(&vdev->fw->file, ivpu_firmware, vdev->drm.dev);
+		if (!ret)
+			vdev->fw->name = ivpu_firmware;
+		return ret;
+	}
+
+	for (i = 0; i < ARRAY_SIZE(fw_names); i++) {
+		if (fw_names[i].gen != ivpu_hw_ip_gen(vdev))
+			continue;
+
+		ret = firmware_request_nowarn(&vdev->fw->file, fw_names[i].name, vdev->drm.dev);
+		if (!ret) {
+			vdev->fw->name = fw_names[i].name;
+			return 0;
+		}
+	}
+
+	ivpu_err(vdev, "Failed to request firmware: %d\n", ret);
+	return ret;
+}
+
+static int
+ivpu_fw_check_api(struct ivpu_device *vdev, const struct vpu_firmware_header *fw_hdr,
+		  const char *str, int index, u16 expected_major, u16 expected_minor,
+		  u16 min_major)
+{
+	u16 major = (u16)(fw_hdr->api_version[index] >> 16);
+	u16 minor = (u16)(fw_hdr->api_version[index]);
+
+	if (major < min_major) {
+		ivpu_err(vdev, "Incompatible FW %s API version: %d.%d, required %d.0 or later\n",
+			 str, major, minor, min_major);
+		return -EINVAL;
+	}
+	if (major != expected_major) {
+		ivpu_warn(vdev, "Major FW %s API version different: %d.%d (expected %d.%d)\n",
+			  str, major, minor, expected_major, expected_minor);
+	}
+	ivpu_dbg(vdev, FW_BOOT, "FW %s API version: %d.%d (expected %d.%d)\n",
+		 str, major, minor, expected_major, expected_minor);
+
+	return 0;
+}
+
+static bool
+ivpu_fw_check_api_ver_lt(struct ivpu_device *vdev, const struct vpu_firmware_header *fw_hdr,
+			 const char *str, int index, u16 major, u16 minor)
+{
+	u16 fw_major = (u16)(fw_hdr->api_version[index] >> 16);
+	u16 fw_minor = (u16)(fw_hdr->api_version[index]);
+
+	if (fw_major < major || (fw_major == major && fw_minor < minor))
+		return true;
+
+	return false;
+}
+
+bool ivpu_is_within_range(u64 addr, size_t size, struct ivpu_addr_range *range)
+{
+	u64 addr_end;
+
+	if (!range || check_add_overflow(addr, size, &addr_end))
+		return false;
+
+	if (addr < range->start || addr_end > range->end)
+		return false;
+
+	return true;
+}
+
+static u32
+ivpu_fw_sched_mode_select(struct ivpu_device *vdev, const struct vpu_firmware_header *fw_hdr)
+{
+	if (ivpu_hw_ip_gen(vdev) >= IVPU_HW_IP_60XX &&
+	    ivpu_sched_mode == VPU_SCHEDULING_MODE_OS) {
+		ivpu_warn(vdev, "OS sched mode is not supported, using HW mode\n");
+		return VPU_SCHEDULING_MODE_HW;
+	}
+
+	if (ivpu_sched_mode != IVPU_SCHED_MODE_AUTO)
+		return ivpu_sched_mode;
+
+	if (IVPU_FW_CHECK_API_VER_LT(vdev, fw_hdr, JSM, 3, 24))
+		return VPU_SCHEDULING_MODE_OS;
+
+	return VPU_SCHEDULING_MODE_HW;
+}
+
+static void
+ivpu_preemption_config_parse(struct ivpu_device *vdev, const struct vpu_firmware_header *fw_hdr)
+{
+	struct ivpu_fw_info *fw = vdev->fw;
+	u32 primary_preempt_buf_size, secondary_preempt_buf_size;
+
+	if (fw_hdr->preemption_buffer_1_max_size)
+		primary_preempt_buf_size = fw_hdr->preemption_buffer_1_max_size;
+	else
+		primary_preempt_buf_size = fw_hdr->preemption_buffer_1_size;
+
+	if (fw_hdr->preemption_buffer_2_max_size)
+		secondary_preempt_buf_size = fw_hdr->preemption_buffer_2_max_size;
+	else
+		secondary_preempt_buf_size = fw_hdr->preemption_buffer_2_size;
+
+	ivpu_dbg(vdev, FW_BOOT, "Preemption buffer size, primary: %u, secondary: %u\n",
+		 primary_preempt_buf_size, secondary_preempt_buf_size);
+
+	if (primary_preempt_buf_size < FW_PREEMPT_BUF_MIN_SIZE ||
+	    secondary_preempt_buf_size < FW_PREEMPT_BUF_MIN_SIZE) {
+		ivpu_warn(vdev, "Preemption buffers size too small\n");
+		return;
+	}
+
+	if (primary_preempt_buf_size > FW_PREEMPT_BUF_MAX_SIZE ||
+	    secondary_preempt_buf_size > FW_PREEMPT_BUF_MAX_SIZE) {
+		ivpu_warn(vdev, "Preemption buffers size too big\n");
+		return;
+	}
+
+	if (fw->sched_mode != VPU_SCHEDULING_MODE_HW)
+		return;
+
+	if (ivpu_test_mode & IVPU_TEST_MODE_MIP_DISABLE)
+		return;
+
+	vdev->fw->primary_preempt_buf_size = ALIGN(primary_preempt_buf_size, PAGE_SIZE);
+	vdev->fw->secondary_preempt_buf_size = ALIGN(secondary_preempt_buf_size, PAGE_SIZE);
+}
+
+static int ivpu_fw_parse(struct ivpu_device *vdev)
+{
+	struct ivpu_fw_info *fw = vdev->fw;
+	const struct vpu_firmware_header *fw_hdr = (const void *)fw->file->data;
+	struct ivpu_addr_range fw_image_range;
+	u64 boot_params_addr, boot_params_size;
+	u64 fw_version_addr, fw_version_size;
+	u64 runtime_addr, runtime_size;
+	u64 image_load_addr, image_size;
+
+	if (fw->file->size <= FW_FILE_IMAGE_OFFSET) {
+		ivpu_err(vdev, "Firmware file is too small: %zu\n", fw->file->size);
+		return -EINVAL;
+	}
+
+	if (fw_hdr->header_version != VPU_FW_HEADER_VERSION) {
+		ivpu_err(vdev, "Invalid firmware header version: %u\n", fw_hdr->header_version);
+		return -EINVAL;
+	}
+
+	boot_params_addr = fw_hdr->boot_params_load_address;
+	boot_params_size = SZ_4K;
+
+	if (!ivpu_is_within_range(boot_params_addr, boot_params_size, &vdev->hw->ranges.runtime)) {
+		ivpu_err(vdev, "Invalid boot params address: 0x%llx\n", boot_params_addr);
+		return -EINVAL;
+	}
+
+	fw_version_addr = fw_hdr->firmware_version_load_address;
+	fw_version_size = ALIGN(fw_hdr->firmware_version_size, SZ_4K);
+
+	if (fw_version_size != SZ_4K) {
+		ivpu_err(vdev, "Invalid firmware version size: %u\n",
+			 fw_hdr->firmware_version_size);
+		return -EINVAL;
+	}
+
+	if (!ivpu_is_within_range(fw_version_addr, fw_version_size, &vdev->hw->ranges.runtime)) {
+		ivpu_err(vdev, "Invalid firmware version address: 0x%llx\n", fw_version_addr);
+		return -EINVAL;
+	}
+
+	runtime_addr = fw_hdr->image_load_address;
+	runtime_size = fw_hdr->runtime_size - boot_params_size - fw_version_size;
+
+	image_load_addr = fw_hdr->image_load_address;
+	image_size = fw_hdr->image_size;
+
+	if (!ivpu_is_within_range(runtime_addr, runtime_size, &vdev->hw->ranges.runtime)) {
+		ivpu_err(vdev, "Invalid firmware runtime address: 0x%llx and size %llu\n",
+			 runtime_addr, runtime_size);
+		return -EINVAL;
+	}
+
+	if (FW_FILE_IMAGE_OFFSET + image_size > fw->file->size) {
+		ivpu_err(vdev, "Invalid image size: %llu\n", image_size);
+		return -EINVAL;
+	}
+
+	if (!PAGE_ALIGNED(runtime_addr)) {
+		ivpu_err(vdev, "Runtime address 0x%llx not page aligned\n", runtime_addr);
+		return -EINVAL;
+	}
+
+	if (!PAGE_ALIGNED(runtime_size)) {
+		ivpu_err(vdev, "Runtime size %llu not page aligned\n", runtime_size);
+		return -EINVAL;
+	}
+
+	if (runtime_size < image_size) {
+		ivpu_err(vdev, "Runtime size too small: %llu, image size: %llu\n",
+			 runtime_size, image_size);
+		return -EINVAL;
+	}
+
+	if (!ivpu_is_within_range(image_load_addr, image_size, &vdev->hw->ranges.runtime)) {
+		ivpu_err(vdev, "Invalid firmware load address: 0x%llx and size %llu\n",
+			 image_load_addr, image_size);
+		return -EINVAL;
+	}
+
+	if (ivpu_hw_range_init(vdev, &fw_image_range, image_load_addr, image_size))
+		return -EINVAL;
+
+	if (!ivpu_is_within_range(fw_hdr->entry_point, SZ_4K, &fw_image_range)) {
+		ivpu_err(vdev, "Invalid entry point: 0x%llx\n", fw_hdr->entry_point);
+		return -EINVAL;
+	}
+
+	if (fw_hdr->shave_nn_fw_size > FW_SHAVE_NN_MAX_SIZE) {
+		ivpu_err(vdev, "SHAVE NN firmware is too big: %u\n", fw_hdr->shave_nn_fw_size);
+		return -EINVAL;
+	}
+
+	ivpu_dbg(vdev, FW_BOOT, "Header version: 0x%x, format 0x%x\n",
+		 fw_hdr->header_version, fw_hdr->image_format);
+
+	if (!scnprintf(fw->version, sizeof(fw->version), "%s", fw->file->data + VPU_FW_HEADER_SIZE))
+		ivpu_warn(vdev, "Missing firmware version\n");
+
+	ivpu_info(vdev, "Firmware: %s, version: %s\n", fw->name, fw->version);
+
+	if (IVPU_FW_CHECK_API_COMPAT(vdev, fw_hdr, BOOT, 3))
+		return -EINVAL;
+	if (IVPU_FW_CHECK_API_COMPAT(vdev, fw_hdr, JSM, 3))
+		return -EINVAL;
+
+	fw->boot_params_addr = boot_params_addr;
+	fw->boot_params_size = boot_params_size;
+	fw->fw_version_addr = fw_version_addr;
+	fw->fw_version_size = fw_version_size;
+	fw->runtime_addr = runtime_addr;
+	fw->runtime_size = runtime_size;
+	fw->image_load_offset = image_load_addr - runtime_addr;
+	fw->image_size = image_size;
+	fw->shave_nn_size = PAGE_ALIGN(fw_hdr->shave_nn_fw_size);
+	fw->cold_boot_entry_point = fw_hdr->entry_point;
+
+	fw->trace_level = min_t(u32, ivpu_fw_log_level, IVPU_FW_LOG_FATAL);
+	fw->trace_destination_mask = VPU_TRACE_DESTINATION_VERBOSE_TRACING;
+	fw->trace_hw_component_mask = -1;
+
+	fw->dvfs_mode = 0;
+
+	fw->sched_mode = ivpu_fw_sched_mode_select(vdev, fw_hdr);
+	ivpu_info(vdev, "Scheduler mode: %s\n", fw->sched_mode ? "HW" : "OS");
+
+	ivpu_preemption_config_parse(vdev, fw_hdr);
+	ivpu_dbg(vdev, FW_BOOT, "Mid-inference preemption %s supported\n",
+		 ivpu_fw_preempt_buf_size(vdev) ? "is" : "is not");
+
+	if (fw_hdr->ro_section_start_address &&
+	    !ivpu_is_within_range(fw_hdr->ro_section_start_address, fw_hdr->ro_section_size,
+				  &fw_image_range)) {
+		ivpu_err(vdev, "Invalid read-only section: start address 0x%llx, size %u\n",
+			 fw_hdr->ro_section_start_address, fw_hdr->ro_section_size);
+		return -EINVAL;
+	}
+
+	fw->read_only_addr = fw_hdr->ro_section_start_address;
+	fw->read_only_size = fw_hdr->ro_section_size;
+
+	ivpu_dbg(vdev, FW_BOOT, "Boot params: address 0x%llx, size %llu\n",
+		 fw->boot_params_addr, fw->boot_params_size);
+	ivpu_dbg(vdev, FW_BOOT, "FW version:  address 0x%llx, size %llu\n",
+		 fw->fw_version_addr, fw->fw_version_size);
+	ivpu_dbg(vdev, FW_BOOT, "Runtime:     address 0x%llx, size %u\n",
+		 fw->runtime_addr, fw->runtime_size);
+	ivpu_dbg(vdev, FW_BOOT, "Image load offset: 0x%llx, size %u\n",
+		 fw->image_load_offset, fw->image_size);
+	ivpu_dbg(vdev, FW_BOOT, "Read-only section: address 0x%llx, size %u\n",
+		 fw->read_only_addr, fw->read_only_size);
+	ivpu_dbg(vdev, FW_BOOT, "FW cold boot entry point: 0x%llx\n", fw->cold_boot_entry_point);
+	ivpu_dbg(vdev, FW_BOOT, "SHAVE NN size: %u\n", fw->shave_nn_size);
+
+	return 0;
+}
+
+static void ivpu_fw_release(struct ivpu_device *vdev)
+{
+	release_firmware(vdev->fw->file);
+}
+
+
+static int ivpu_fw_mem_init(struct ivpu_device *vdev)
+{
+	struct ivpu_fw_info *fw = vdev->fw;
+	int log_verb_size;
+	int ret;
+
+	fw->mem_bp = ivpu_bo_create_runtime(vdev, fw->boot_params_addr, fw->boot_params_size,
+					    DRM_IVPU_BO_WC | DRM_IVPU_BO_MAPPABLE);
+	if (!fw->mem_bp) {
+		ivpu_err(vdev, "Failed to create firmware boot params memory buffer\n");
+		return -ENOMEM;
+	}
+
+	fw->mem_fw_ver = ivpu_bo_create_runtime(vdev, fw->fw_version_addr, fw->fw_version_size,
+						DRM_IVPU_BO_WC | DRM_IVPU_BO_MAPPABLE);
+	if (!fw->mem_fw_ver) {
+		ivpu_err(vdev, "Failed to create firmware version memory buffer\n");
+		ret = -ENOMEM;
+		goto err_free_bp;
+	}
+
+	fw->mem = ivpu_bo_create_runtime(vdev, fw->runtime_addr, fw->runtime_size,
+					 DRM_IVPU_BO_WC | DRM_IVPU_BO_MAPPABLE);
+	if (!fw->mem) {
+		ivpu_err(vdev, "Failed to create firmware runtime memory buffer\n");
+		ret = -ENOMEM;
+		goto err_free_fw_ver;
+	}
+
+	ret = ivpu_mmu_context_set_pages_ro(vdev, &vdev->gctx, fw->read_only_addr,
+					    fw->read_only_size);
+	if (ret) {
+		ivpu_err(vdev, "Failed to set firmware image read-only\n");
+		goto err_free_fw_mem;
+	}
+
+	fw->mem_log_crit = ivpu_bo_create_global(vdev, IVPU_FW_CRITICAL_BUFFER_SIZE,
+						 DRM_IVPU_BO_CACHED | DRM_IVPU_BO_MAPPABLE);
+	if (!fw->mem_log_crit) {
+		ivpu_err(vdev, "Failed to create critical log buffer\n");
+		ret = -ENOMEM;
+		goto err_free_fw_mem;
+	}
+
+	if (ivpu_fw_log_level <= IVPU_FW_LOG_INFO)
+		log_verb_size = IVPU_FW_VERBOSE_BUFFER_LARGE_SIZE;
+	else
+		log_verb_size = IVPU_FW_VERBOSE_BUFFER_SMALL_SIZE;
+
+	fw->mem_log_verb = ivpu_bo_create_global(vdev, log_verb_size,
+						 DRM_IVPU_BO_CACHED | DRM_IVPU_BO_MAPPABLE);
+	if (!fw->mem_log_verb) {
+		ivpu_err(vdev, "Failed to create verbose log buffer\n");
+		ret = -ENOMEM;
+		goto err_free_log_crit;
+	}
+
+	if (fw->shave_nn_size) {
+		fw->mem_shave_nn = ivpu_bo_create(vdev, &vdev->gctx, &vdev->hw->ranges.shave,
+						  fw->shave_nn_size, DRM_IVPU_BO_WC);
+		if (!fw->mem_shave_nn) {
+			ivpu_err(vdev, "Failed to create shavenn buffer\n");
+			ret = -ENOMEM;
+			goto err_free_log_verb;
+		}
+	}
+
+	return 0;
+
+err_free_log_verb:
+	ivpu_bo_free(fw->mem_log_verb);
+err_free_log_crit:
+	ivpu_bo_free(fw->mem_log_crit);
+err_free_fw_mem:
+	ivpu_bo_free(fw->mem);
+err_free_fw_ver:
+	ivpu_bo_free(fw->mem_fw_ver);
+err_free_bp:
+	ivpu_bo_free(fw->mem_bp);
+	return ret;
+}
+
+static void ivpu_fw_mem_fini(struct ivpu_device *vdev)
+{
+	struct ivpu_fw_info *fw = vdev->fw;
+
+	if (fw->mem_shave_nn) {
+		ivpu_bo_free(fw->mem_shave_nn);
+		fw->mem_shave_nn = NULL;
+	}
+
+	ivpu_bo_free(fw->mem_log_verb);
+	ivpu_bo_free(fw->mem_log_crit);
+	ivpu_bo_free(fw->mem);
+	ivpu_bo_free(fw->mem_fw_ver);
+	ivpu_bo_free(fw->mem_bp);
+
+	fw->mem_log_verb = NULL;
+	fw->mem_log_crit = NULL;
+	fw->mem = NULL;
+	fw->mem_fw_ver = NULL;
+	fw->mem_bp = NULL;
+}
+
+int ivpu_fw_init(struct ivpu_device *vdev)
+{
+	int ret;
+
+	ret = ivpu_fw_request(vdev);
+	if (ret)
+		return ret;
+
+	ret = ivpu_fw_parse(vdev);
+	if (ret)
+		goto err_fw_release;
+
+	ret = ivpu_fw_mem_init(vdev);
+	if (ret)
+		goto err_fw_release;
+
+	ivpu_fw_load(vdev);
+
+	return 0;
+
+err_fw_release:
+	ivpu_fw_release(vdev);
+	return ret;
+}
+
+void ivpu_fw_fini(struct ivpu_device *vdev)
+{
+	ivpu_fw_mem_fini(vdev);
+	ivpu_fw_release(vdev);
+}
+
+void ivpu_fw_load(struct ivpu_device *vdev)
+{
+	struct ivpu_fw_info *fw = vdev->fw;
+	u64 image_end_offset = fw->image_load_offset + fw->image_size;
+
+	memset(ivpu_bo_vaddr(fw->mem), 0, fw->image_load_offset);
+	memcpy(ivpu_bo_vaddr(fw->mem) + fw->image_load_offset,
+	       fw->file->data + FW_FILE_IMAGE_OFFSET, fw->image_size);
+
+	if (IVPU_WA(clear_runtime_mem)) {
+		u8 *start = ivpu_bo_vaddr(fw->mem) + image_end_offset;
+		u64 size = ivpu_bo_size(fw->mem) - image_end_offset;
+
+		memset(start, 0, size);
+	}
+
+	wmb(); /* Flush WC buffers after writing fw->mem */
+}
+
+static void ivpu_fw_boot_params_print(struct ivpu_device *vdev, struct vpu_boot_params *boot_params)
+{
+	ivpu_dbg(vdev, FW_BOOT, "boot_params.magic = 0x%x\n",
+		 boot_params->magic);
+	ivpu_dbg(vdev, FW_BOOT, "boot_params.vpu_id = 0x%x\n",
+		 boot_params->vpu_id);
+	ivpu_dbg(vdev, FW_BOOT, "boot_params.vpu_count = 0x%x\n",
+		 boot_params->vpu_count);
+	ivpu_dbg(vdev, FW_BOOT, "boot_params.frequency = %u\n",
+		 boot_params->frequency);
+	ivpu_dbg(vdev, FW_BOOT, "boot_params.perf_clk_frequency = %u\n",
+		 boot_params->perf_clk_frequency);
+
+	ivpu_dbg(vdev, FW_BOOT, "boot_params.ipc_header_area_start = 0x%llx\n",
+		 boot_params->ipc_header_area_start);
+	ivpu_dbg(vdev, FW_BOOT, "boot_params.ipc_header_area_size = 0x%x\n",
+		 boot_params->ipc_header_area_size);
+	ivpu_dbg(vdev, FW_BOOT, "boot_params.shared_region_base = 0x%llx\n",
+		 boot_params->shared_region_base);
+	ivpu_dbg(vdev, FW_BOOT, "boot_params.shared_region_size = 0x%x\n",
+		 boot_params->shared_region_size);
+	ivpu_dbg(vdev, FW_BOOT, "boot_params.ipc_payload_area_start = 0x%llx\n",
+		 boot_params->ipc_payload_area_start);
+	ivpu_dbg(vdev, FW_BOOT, "boot_params.ipc_payload_area_size = 0x%x\n",
+		 boot_params->ipc_payload_area_size);
+	ivpu_dbg(vdev, FW_BOOT, "boot_params.global_aliased_pio_base = 0x%llx\n",
+		 boot_params->global_aliased_pio_base);
+	ivpu_dbg(vdev, FW_BOOT, "boot_params.global_aliased_pio_size = 0x%x\n",
+		 boot_params->global_aliased_pio_size);
+
+	ivpu_dbg(vdev, FW_BOOT, "boot_params.autoconfig = 0x%x\n",
+		 boot_params->autoconfig);
+
+	ivpu_dbg(vdev, FW_BOOT, "boot_params.cache_defaults[VPU_BOOT_L2_CACHE_CFG_NN].use = 0x%x\n",
+		 boot_params->cache_defaults[VPU_BOOT_L2_CACHE_CFG_NN].use);
+	ivpu_dbg(vdev, FW_BOOT, "boot_params.cache_defaults[VPU_BOOT_L2_CACHE_CFG_NN].cfg = 0x%x\n",
+		 boot_params->cache_defaults[VPU_BOOT_L2_CACHE_CFG_NN].cfg);
+
+	ivpu_dbg(vdev, FW_BOOT, "boot_params.shave_nn_fw_base = 0x%llx\n",
+		 boot_params->shave_nn_fw_base);
+
+	ivpu_dbg(vdev, FW_BOOT, "boot_params.watchdog_irq_mss = 0x%x\n",
+		 boot_params->watchdog_irq_mss);
+	ivpu_dbg(vdev, FW_BOOT, "boot_params.watchdog_irq_nce = 0x%x\n",
+		 boot_params->watchdog_irq_nce);
+
+	ivpu_dbg(vdev, FW_BOOT, "boot_params.host_version_id = 0x%x\n",
+		 boot_params->host_version_id);
+	ivpu_dbg(vdev, FW_BOOT, "boot_params.si_stepping = 0x%x\n",
+		 boot_params->si_stepping);
+	ivpu_dbg(vdev, FW_BOOT, "boot_params.device_id = 0x%llx\n",
+		 boot_params->device_id);
+	ivpu_dbg(vdev, FW_BOOT, "boot_params.feature_exclusion = 0x%llx\n",
+		 boot_params->feature_exclusion);
+	ivpu_dbg(vdev, FW_BOOT, "boot_params.sku = 0x%llx\n",
+		 boot_params->sku);
+	ivpu_dbg(vdev, FW_BOOT, "boot_params.min_freq_pll_ratio = 0x%x\n",
+		 boot_params->min_freq_pll_ratio);
+	ivpu_dbg(vdev, FW_BOOT, "boot_params.pn_freq_pll_ratio = 0x%x\n",
+		 boot_params->pn_freq_pll_ratio);
+	ivpu_dbg(vdev, FW_BOOT, "boot_params.max_freq_pll_ratio = 0x%x\n",
+		 boot_params->max_freq_pll_ratio);
+	ivpu_dbg(vdev, FW_BOOT, "boot_params.default_trace_level = 0x%x\n",
+		 boot_params->default_trace_level);
+	ivpu_dbg(vdev, FW_BOOT, "boot_params.tracing_buff_message_format_mask = 0x%llx\n",
+		 boot_params->tracing_buff_message_format_mask);
+	ivpu_dbg(vdev, FW_BOOT, "boot_params.trace_destination_mask = 0x%x\n",
+		 boot_params->trace_destination_mask);
+	ivpu_dbg(vdev, FW_BOOT, "boot_params.trace_hw_component_mask = 0x%llx\n",
+		 boot_params->trace_hw_component_mask);
+	ivpu_dbg(vdev, FW_BOOT, "boot_params.boot_type = 0x%x\n",
+		 boot_params->boot_type);
+	ivpu_dbg(vdev, FW_BOOT, "boot_params.punit_telemetry_sram_base = 0x%llx\n",
+		 boot_params->punit_telemetry_sram_base);
+	ivpu_dbg(vdev, FW_BOOT, "boot_params.punit_telemetry_sram_size = 0x%llx\n",
+		 boot_params->punit_telemetry_sram_size);
+	ivpu_dbg(vdev, FW_BOOT, "boot_params.vpu_telemetry_enable = 0x%x\n",
+		 boot_params->vpu_telemetry_enable);
+	ivpu_dbg(vdev, FW_BOOT, "boot_params.vpu_scheduling_mode = 0x%x\n",
+		 boot_params->vpu_scheduling_mode);
+	ivpu_dbg(vdev, FW_BOOT, "boot_params.dvfs_mode = %u\n",
+		 boot_params->dvfs_mode);
+	ivpu_dbg(vdev, FW_BOOT, "boot_params.d0i3_delayed_entry = %d\n",
+		 boot_params->d0i3_delayed_entry);
+	ivpu_dbg(vdev, FW_BOOT, "boot_params.d0i3_residency_time_us = %lld\n",
+		 boot_params->d0i3_residency_time_us);
+	ivpu_dbg(vdev, FW_BOOT, "boot_params.d0i3_entry_vpu_ts = %llu\n",
+		 boot_params->d0i3_entry_vpu_ts);
+	ivpu_dbg(vdev, FW_BOOT, "boot_params.system_time_us = %llu\n",
+		 boot_params->system_time_us);
+	ivpu_dbg(vdev, FW_BOOT, "boot_params.power_profile = 0x%x\n",
+		 boot_params->power_profile);
+	ivpu_dbg(vdev, FW_BOOT, "boot_params.vpu_uses_ecc_mca_signal = 0x%x\n",
+		 boot_params->vpu_uses_ecc_mca_signal);
+	ivpu_dbg(vdev, FW_BOOT, "boot_params.boot_type = 0x%x\n", boot_params->boot_type);
+}
+
+void ivpu_fw_boot_params_setup(struct ivpu_device *vdev, struct vpu_boot_params *boot_params)
+{
+	struct ivpu_bo *ipc_mem_rx = vdev->ipc->mem_rx;
+
+	/* In case of warm boot only update variable params */
+	if (ivpu_fw_is_warm_boot(vdev)) {
+		boot_params->d0i3_residency_time_us =
+			ktime_us_delta(ktime_get_boottime(), vdev->hw->d0i3_entry_host_ts);
+		boot_params->d0i3_entry_vpu_ts = vdev->hw->d0i3_entry_vpu_ts;
+		boot_params->system_time_us = ktime_to_us(ktime_get_real());
+
+		ivpu_dbg(vdev, FW_BOOT, "boot_params.d0i3_residency_time_us = %lld\n",
+			 boot_params->d0i3_residency_time_us);
+		ivpu_dbg(vdev, FW_BOOT, "boot_params.d0i3_entry_vpu_ts = %llu\n",
+			 boot_params->d0i3_entry_vpu_ts);
+		ivpu_dbg(vdev, FW_BOOT, "boot_params.system_time_us = %llu\n",
+			 boot_params->system_time_us);
+		ivpu_dbg(vdev, FW_BOOT, "boot_params.boot_type = 0x%x\n", boot_params->boot_type);
+
+		boot_params->save_restore_ret_address = 0;
+		boot_params->boot_type = VPU_BOOT_TYPE_WARMBOOT;
+		wmb(); /* Flush WC buffers after writing save_restore_ret_address */
+		return;
+	}
+
+	memset(boot_params, 0, sizeof(*boot_params));
+	boot_params->boot_type = VPU_BOOT_TYPE_COLDBOOT;
+	boot_params->magic = VPU_BOOT_PARAMS_MAGIC;
+	boot_params->vpu_id = to_pci_dev(vdev->drm.dev)->bus->number;
+
+	/*
+	 * This param is a debug firmware feature.  It switches default clock
+	 * to higher resolution one for fine-grained and more accurate firmware
+	 * task profiling.
+	 */
+	boot_params->perf_clk_frequency = ivpu_hw_profiling_freq_get(vdev);
+
+	/*
+	 * Uncached region of VPU address space, covers IPC buffers, job queues
+	 * and log buffers, programmable to L2$ Uncached by VPU MTRR
+	 */
+	boot_params->shared_region_base = vdev->hw->ranges.global.start;
+	boot_params->shared_region_size = vdev->hw->ranges.global.end -
+					  vdev->hw->ranges.global.start;
+
+	boot_params->ipc_header_area_start = ipc_mem_rx->vpu_addr;
+	boot_params->ipc_header_area_size = ivpu_bo_size(ipc_mem_rx) / 2;
+
+	boot_params->ipc_payload_area_start = ipc_mem_rx->vpu_addr + ivpu_bo_size(ipc_mem_rx) / 2;
+	boot_params->ipc_payload_area_size = ivpu_bo_size(ipc_mem_rx) / 2;
+
+	if (ivpu_hw_ip_gen(vdev) == IVPU_HW_IP_37XX) {
+		boot_params->global_aliased_pio_base = vdev->hw->ranges.user.start;
+		boot_params->global_aliased_pio_size = ivpu_hw_range_size(&vdev->hw->ranges.user);
+	}
+
+	/* Allow configuration for L2C_PAGE_TABLE with boot param value */
+	boot_params->autoconfig = 1;
+
+	/* Enable L2 cache for first 2GB of high memory */
+	boot_params->cache_defaults[VPU_BOOT_L2_CACHE_CFG_NN].use = 1;
+	boot_params->cache_defaults[VPU_BOOT_L2_CACHE_CFG_NN].cfg =
+		ADDR_TO_L2_CACHE_CFG(vdev->hw->ranges.shave.start);
+
+	if (vdev->fw->mem_shave_nn)
+		boot_params->shave_nn_fw_base = vdev->fw->mem_shave_nn->vpu_addr;
+
+	boot_params->watchdog_irq_mss = WATCHDOG_MSS_REDIRECT;
+	boot_params->watchdog_irq_nce = WATCHDOG_NCE_REDIRECT;
+	boot_params->si_stepping = ivpu_revision(vdev);
+	boot_params->device_id = ivpu_device_id(vdev);
+	boot_params->feature_exclusion = vdev->hw->tile_fuse;
+	boot_params->sku = vdev->hw->sku;
+
+	boot_params->min_freq_pll_ratio = vdev->hw->pll.min_ratio;
+	boot_params->pn_freq_pll_ratio = vdev->hw->pll.pn_ratio;
+	boot_params->max_freq_pll_ratio = vdev->hw->pll.max_ratio;
+
+	boot_params->default_trace_level = vdev->fw->trace_level;
+	boot_params->tracing_buff_message_format_mask = BIT(VPU_TRACING_FORMAT_STRING);
+	boot_params->trace_destination_mask = vdev->fw->trace_destination_mask;
+	boot_params->trace_hw_component_mask = vdev->fw->trace_hw_component_mask;
+	boot_params->crit_tracing_buff_addr = vdev->fw->mem_log_crit->vpu_addr;
+	boot_params->crit_tracing_buff_size = ivpu_bo_size(vdev->fw->mem_log_crit);
+	boot_params->verbose_tracing_buff_addr = vdev->fw->mem_log_verb->vpu_addr;
+	boot_params->verbose_tracing_buff_size = ivpu_bo_size(vdev->fw->mem_log_verb);
+
+	boot_params->punit_telemetry_sram_base = ivpu_hw_telemetry_offset_get(vdev);
+	boot_params->punit_telemetry_sram_size = ivpu_hw_telemetry_size_get(vdev);
+	boot_params->vpu_telemetry_enable = ivpu_hw_telemetry_enable_get(vdev);
+	boot_params->vpu_scheduling_mode = vdev->fw->sched_mode;
+	if (vdev->fw->sched_mode == VPU_SCHEDULING_MODE_HW)
+		boot_params->vpu_focus_present_timer_ms = IVPU_FOCUS_PRESENT_TIMER_MS;
+	boot_params->dvfs_mode = vdev->fw->dvfs_mode;
+	boot_params->d0i3_delayed_entry = 1;
+	boot_params->d0i3_residency_time_us = 0;
+	boot_params->d0i3_entry_vpu_ts = 0;
+	if (IVPU_WA(disable_d0i2))
+		boot_params->power_profile |= BIT(1);
+	boot_params->vpu_uses_ecc_mca_signal =
+		ivpu_hw_uses_ecc_mca_signal(vdev) ? VPU_BOOT_MCA_ECC_BOTH : 0;
+
+	boot_params->system_time_us = ktime_to_us(ktime_get_real());
+	wmb(); /* Flush WC buffers after writing bootparams */
+
+	ivpu_fw_boot_params_print(vdev, boot_params);
+}

linux-7.2.3/drivers/accel/ivpu/ivpu_fw.h

@@ -0,0 +1,70 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2020-2025 Intel Corporation
+ */
+
+#ifndef __IVPU_FW_H__
+#define __IVPU_FW_H__
+
+#include "vpu_boot_api.h"
+#include "vpu_jsm_api.h"
+
+#define FW_VERSION_HEADER_SIZE	SZ_4K
+#define FW_VERSION_STR_SIZE	SZ_256
+
+struct ivpu_device;
+struct ivpu_bo;
+struct vpu_boot_params;
+
+struct ivpu_fw_info {
+	const struct firmware *file;
+	const char *name;
+	char version[FW_VERSION_STR_SIZE];
+	struct ivpu_bo *mem_bp;
+	struct ivpu_bo *mem_fw_ver;
+	struct ivpu_bo *mem;
+	struct ivpu_bo *mem_shave_nn;
+	struct ivpu_bo *mem_log_crit;
+	struct ivpu_bo *mem_log_verb;
+	u64 boot_params_addr;
+	u64 boot_params_size;
+	u64 fw_version_addr;
+	u64 fw_version_size;
+	u64 runtime_addr;
+	u32 runtime_size;
+	u64 image_load_offset;
+	u32 image_size;
+	u32 shave_nn_size;
+	u64 warm_boot_entry_point;
+	u64 cold_boot_entry_point;
+	u8 last_boot_mode;
+	u8 next_boot_mode;
+	u32 trace_level;
+	u32 trace_destination_mask;
+	u64 trace_hw_component_mask;
+	u32 dvfs_mode;
+	u32 primary_preempt_buf_size;
+	u32 secondary_preempt_buf_size;
+	u64 read_only_addr;
+	u32 read_only_size;
+	u32 sched_mode;
+	u64 last_heartbeat;
+};
+
+bool ivpu_is_within_range(u64 addr, size_t size, struct ivpu_addr_range *range);
+int ivpu_fw_init(struct ivpu_device *vdev);
+void ivpu_fw_fini(struct ivpu_device *vdev);
+void ivpu_fw_load(struct ivpu_device *vdev);
+void ivpu_fw_boot_params_setup(struct ivpu_device *vdev, struct vpu_boot_params *boot_params);
+
+static inline bool ivpu_fw_is_warm_boot(struct ivpu_device *vdev)
+{
+	return vdev->fw->next_boot_mode == VPU_BOOT_TYPE_WARMBOOT;
+}
+
+static inline u32 ivpu_fw_preempt_buf_size(struct ivpu_device *vdev)
+{
+	return vdev->fw->primary_preempt_buf_size + vdev->fw->secondary_preempt_buf_size;
+}
+
+#endif /* __IVPU_FW_H__ */

linux-7.2.3/drivers/accel/ivpu/ivpu_fw_log.c

@@ -0,0 +1,184 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2020-2024 Intel Corporation
+ */
+
+#include <linux/ctype.h>
+#include <linux/highmem.h>
+#include <linux/fs.h>
+#include <linux/slab.h>
+#include <linux/moduleparam.h>
+
+#include "vpu_boot_api.h"
+#include "ivpu_drv.h"
+#include "ivpu_fw.h"
+#include "ivpu_fw_log.h"
+#include "ivpu_gem.h"
+
+#define IVPU_FW_LOG_LINE_LENGTH	256
+
+unsigned int ivpu_fw_log_level = IVPU_FW_LOG_ERROR;
+module_param_named(fw_log_level, ivpu_fw_log_level, uint, 0444);
+MODULE_PARM_DESC(fw_log_level,
+		 "NPU firmware default log level: debug=" __stringify(IVPU_FW_LOG_DEBUG)
+		 " info=" __stringify(IVPU_FW_LOG_INFO)
+		 " warn=" __stringify(IVPU_FW_LOG_WARN)
+		 " error=" __stringify(IVPU_FW_LOG_ERROR)
+		 " fatal=" __stringify(IVPU_FW_LOG_FATAL));
+
+static int fw_log_from_bo(struct ivpu_device *vdev, struct ivpu_bo *bo, u32 *offset,
+			  struct vpu_tracing_buffer_header **out_log)
+{
+	struct vpu_tracing_buffer_header *log;
+
+	if ((*offset + sizeof(*log)) > ivpu_bo_size(bo))
+		return -EINVAL;
+
+	log = ivpu_bo_vaddr(bo) + *offset;
+
+	if (log->vpu_canary_start != VPU_TRACING_BUFFER_CANARY)
+		return -EINVAL;
+
+	if (log->header_size < sizeof(*log) || log->header_size > 1024) {
+		ivpu_dbg(vdev, FW_BOOT, "Invalid header size 0x%x\n", log->header_size);
+		return -EINVAL;
+	}
+	if (log->size < log->header_size) {
+		ivpu_dbg(vdev, FW_BOOT, "Invalid log size 0x%x\n", log->size);
+		return -EINVAL;
+	}
+	if ((char *)log + log->size > (char *)ivpu_bo_vaddr(bo) + ivpu_bo_size(bo)) {
+		ivpu_dbg(vdev, FW_BOOT, "Invalid log size 0x%x\n", log->size);
+		return -EINVAL;
+	}
+
+	*out_log = log;
+	*offset += log->size;
+
+	ivpu_dbg(vdev, FW_BOOT,
+		 "FW log name \"%s\", write offset 0x%x size 0x%x, wrap count %d, hdr version %d size %d format %d, alignment %d",
+		 log->name, log->write_index, log->size, log->wrap_count, log->header_version,
+		 log->header_size, log->format, log->alignment);
+
+	return 0;
+}
+
+static void fw_log_print_lines(char *buffer, u32 size, struct drm_printer *p)
+{
+	char line[IVPU_FW_LOG_LINE_LENGTH];
+	u32 index = 0;
+
+	if (!size || !buffer)
+		return;
+
+	while (size--) {
+		if (*buffer == '\n' || *buffer == 0) {
+			line[index] = 0;
+			if (index != 0)
+				drm_printf(p, "%s\n", line);
+			index = 0;
+			buffer++;
+			continue;
+		}
+		if (index == IVPU_FW_LOG_LINE_LENGTH - 1) {
+			line[index] = 0;
+			index = 0;
+			drm_printf(p, "%s\n", line);
+		}
+		if (*buffer != '\r' && (isprint(*buffer) || iscntrl(*buffer)))
+			line[index++] = *buffer;
+		buffer++;
+	}
+	line[index] = 0;
+	if (index != 0)
+		drm_printf(p, "%s", line);
+}
+
+static void fw_log_print_buffer(struct vpu_tracing_buffer_header *log, const char *prefix,
+				bool only_new_msgs, struct drm_printer *p)
+{
+	char *log_data = (void *)log + log->header_size;
+	u32 data_size = log->size - log->header_size;
+	u32 log_start = only_new_msgs ? READ_ONCE(log->read_index) : 0;
+	u32 log_end = READ_ONCE(log->write_index);
+
+	if (log_start >= data_size)
+		log_start = 0;
+	if (log_end > data_size)
+		log_end = data_size;
+
+	if (log->wrap_count == log->read_wrap_count) {
+		if (log_end <= log_start) {
+			drm_printf(p, "==== %s \"%s\" log empty ====\n", prefix, log->name);
+			return;
+		}
+	} else if (log->wrap_count == log->read_wrap_count + 1) {
+		if (log_end > log_start)
+			log_start = log_end;
+	} else {
+		log_start = log_end;
+	}
+
+	drm_printf(p, "==== %s \"%s\" log start ====\n", prefix, log->name);
+	if (log_end > log_start) {
+		fw_log_print_lines(log_data + log_start, log_end - log_start, p);
+	} else {
+		fw_log_print_lines(log_data + log_start, data_size - log_start, p);
+		fw_log_print_lines(log_data, log_end, p);
+	}
+	drm_printf(p, "\n\x1b[0m"); /* add new line and clear formatting */
+	drm_printf(p, "==== %s \"%s\" log end   ====\n", prefix, log->name);
+}
+
+static void
+fw_log_print_all_in_bo(struct ivpu_device *vdev, const char *name,
+		       struct ivpu_bo *bo, bool only_new_msgs, struct drm_printer *p)
+{
+	struct vpu_tracing_buffer_header *log;
+	u32 next = 0;
+
+	while (fw_log_from_bo(vdev, bo, &next, &log) == 0)
+		fw_log_print_buffer(log, name, only_new_msgs, p);
+}
+
+void ivpu_fw_log_print(struct ivpu_device *vdev, bool only_new_msgs, struct drm_printer *p)
+{
+	fw_log_print_all_in_bo(vdev, "NPU critical", vdev->fw->mem_log_crit, only_new_msgs, p);
+	fw_log_print_all_in_bo(vdev, "NPU verbose", vdev->fw->mem_log_verb, only_new_msgs, p);
+}
+
+void ivpu_fw_log_mark_read(struct ivpu_device *vdev)
+{
+	struct vpu_tracing_buffer_header *log;
+	u32 next;
+
+	next = 0;
+	while (fw_log_from_bo(vdev, vdev->fw->mem_log_crit, &next, &log) == 0) {
+		log->read_index = READ_ONCE(log->write_index);
+		log->read_wrap_count = READ_ONCE(log->wrap_count);
+	}
+
+	next = 0;
+	while (fw_log_from_bo(vdev, vdev->fw->mem_log_verb, &next, &log) == 0) {
+		log->read_index = READ_ONCE(log->write_index);
+		log->read_wrap_count = READ_ONCE(log->wrap_count);
+	}
+}
+
+void ivpu_fw_log_reset(struct ivpu_device *vdev)
+{
+	struct vpu_tracing_buffer_header *log;
+	u32 next;
+
+	next = 0;
+	while (fw_log_from_bo(vdev, vdev->fw->mem_log_crit, &next, &log) == 0) {
+		log->read_index = 0;
+		log->read_wrap_count = 0;
+	}
+
+	next = 0;
+	while (fw_log_from_bo(vdev, vdev->fw->mem_log_verb, &next, &log) == 0) {
+		log->read_index = 0;
+		log->read_wrap_count = 0;
+	}
+}

linux-7.2.3/drivers/accel/ivpu/ivpu_fw_log.h

@@ -0,0 +1,31 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2020-2024 Intel Corporation
+ */
+
+#ifndef __IVPU_FW_LOG_H__
+#define __IVPU_FW_LOG_H__
+
+#include <linux/types.h>
+
+#include "ivpu_drv.h"
+
+#define IVPU_FW_LOG_DEFAULT 0
+#define IVPU_FW_LOG_DEBUG   1
+#define IVPU_FW_LOG_INFO    2
+#define IVPU_FW_LOG_WARN    3
+#define IVPU_FW_LOG_ERROR   4
+#define IVPU_FW_LOG_FATAL   5
+
+#define IVPU_FW_VERBOSE_BUFFER_SMALL_SIZE	SZ_1M
+#define IVPU_FW_VERBOSE_BUFFER_LARGE_SIZE	SZ_8M
+#define IVPU_FW_CRITICAL_BUFFER_SIZE		SZ_512K
+
+extern unsigned int ivpu_fw_log_level;
+
+void ivpu_fw_log_print(struct ivpu_device *vdev, bool only_new_msgs, struct drm_printer *p);
+void ivpu_fw_log_mark_read(struct ivpu_device *vdev);
+void ivpu_fw_log_reset(struct ivpu_device *vdev);
+
+
+#endif /* __IVPU_FW_LOG_H__ */

linux-7.2.3/drivers/accel/ivpu/ivpu_gem.c

@@ -0,0 +1,579 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2020-2026 Intel Corporation
+ */
+
+#include <linux/dma-buf.h>
+#include <linux/highmem.h>
+#include <linux/module.h>
+#include <linux/set_memory.h>
+#include <linux/xarray.h>
+
+#include <drm/drm_cache.h>
+#include <drm/drm_debugfs.h>
+#include <drm/drm_file.h>
+#include <drm/drm_utils.h>
+
+#include "ivpu_drv.h"
+#include "ivpu_fw.h"
+#include "ivpu_gem.h"
+#include "ivpu_hw.h"
+#include "ivpu_mmu.h"
+#include "ivpu_mmu_context.h"
+
+MODULE_IMPORT_NS("DMA_BUF");
+
+static const struct drm_gem_object_funcs ivpu_gem_funcs;
+
+static inline void ivpu_dbg_bo(struct ivpu_device *vdev, struct ivpu_bo *bo, const char *action)
+{
+	ivpu_dbg(vdev, BO,
+		 "%6s: bo %8p size %9zu ctx %d vpu_addr %9llx pages %d sgt %d mmu_mapped %d wc %d imported %d\n",
+		 action, bo, ivpu_bo_size(bo), bo->ctx_id, bo->vpu_addr,
+		 (bool)bo->base.pages, (bool)bo->base.sgt, bo->mmu_mapped, bo->base.map_wc,
+		 drm_gem_is_imported(&bo->base.base));
+}
+
+static inline int ivpu_bo_lock(struct ivpu_bo *bo)
+{
+	return dma_resv_lock(bo->base.base.resv, NULL);
+}
+
+static inline void ivpu_bo_unlock(struct ivpu_bo *bo)
+{
+	dma_resv_unlock(bo->base.base.resv);
+}
+
+static struct sg_table *ivpu_bo_map_attachment(struct ivpu_device *vdev, struct ivpu_bo *bo)
+{
+	struct sg_table *sgt;
+
+	drm_WARN_ON(&vdev->drm, !drm_gem_is_imported(&bo->base.base));
+
+	ivpu_bo_lock(bo);
+
+	sgt = bo->base.sgt;
+	if (!sgt) {
+		sgt = dma_buf_map_attachment(bo->base.base.import_attach, DMA_BIDIRECTIONAL);
+		if (IS_ERR(sgt))
+			ivpu_err(vdev, "Failed to map BO in IOMMU: %ld\n", PTR_ERR(sgt));
+		else
+			bo->base.sgt = sgt;
+	}
+
+	ivpu_bo_unlock(bo);
+
+	return sgt;
+}
+
+/*
+ * ivpu_bo_bind() - pin the backing physical pages and map them to VPU.
+ *
+ * This function pins physical memory pages, then maps the physical pages
+ * to IOMMU address space and finally updates the VPU MMU page tables
+ * to allow the VPU to translate VPU address to IOMMU address.
+ */
+int __must_check ivpu_bo_bind(struct ivpu_bo *bo)
+{
+	struct ivpu_device *vdev = ivpu_bo_to_vdev(bo);
+	struct sg_table *sgt;
+	int ret = 0;
+
+	ivpu_dbg_bo(vdev, bo, "bind");
+
+	if (drm_gem_is_imported(&bo->base.base))
+		sgt = ivpu_bo_map_attachment(vdev, bo);
+	else
+		sgt = drm_gem_shmem_get_pages_sgt(&bo->base);
+	if (IS_ERR(sgt)) {
+		ret = PTR_ERR(sgt);
+		ivpu_err(vdev, "Failed to map BO in IOMMU: %d\n", ret);
+		return ret;
+	}
+
+	ivpu_bo_lock(bo);
+
+	if (!bo->mmu_mapped) {
+		drm_WARN_ON(&vdev->drm, !bo->ctx);
+		ret = ivpu_mmu_context_map_sgt(vdev, bo->ctx, bo->vpu_addr, sgt, ivpu_bo_size(bo),
+					       ivpu_bo_is_snooped(bo), ivpu_bo_is_read_only(bo));
+		if (ret) {
+			ivpu_err(vdev, "Failed to map BO in MMU: %d\n", ret);
+			goto unlock;
+		}
+		bo->mmu_mapped = true;
+	}
+
+unlock:
+	ivpu_bo_unlock(bo);
+
+	return ret;
+}
+
+static int
+ivpu_bo_alloc_vpu_addr(struct ivpu_bo *bo, struct ivpu_mmu_context *ctx,
+		       const struct ivpu_addr_range *range)
+{
+	struct ivpu_device *vdev = ivpu_bo_to_vdev(bo);
+	int idx, ret;
+
+	if (!drm_dev_enter(&vdev->drm, &idx))
+		return -ENODEV;
+
+	ivpu_bo_lock(bo);
+
+	ret = ivpu_mmu_context_insert_node(ctx, range, ivpu_bo_size(bo), &bo->mm_node);
+	if (!ret) {
+		bo->ctx = ctx;
+		bo->ctx_id = ctx->id;
+		bo->vpu_addr = bo->mm_node.start;
+		ivpu_dbg_bo(vdev, bo, "vaddr");
+	}
+
+	ivpu_bo_unlock(bo);
+
+	drm_dev_exit(idx);
+
+	return ret;
+}
+
+static void ivpu_bo_unbind_locked(struct ivpu_bo *bo)
+{
+	struct ivpu_device *vdev = ivpu_bo_to_vdev(bo);
+
+	dma_resv_assert_held(bo->base.base.resv);
+
+	if (bo->mmu_mapped) {
+		drm_WARN_ON(&vdev->drm, !bo->ctx);
+		drm_WARN_ON(&vdev->drm, !bo->vpu_addr);
+		drm_WARN_ON(&vdev->drm, !bo->base.sgt);
+		ivpu_mmu_context_unmap_sgt(vdev, bo->ctx, bo->vpu_addr, bo->base.sgt);
+		bo->mmu_mapped = false;
+	}
+
+	if (bo->ctx) {
+		ivpu_mmu_context_remove_node(bo->ctx, &bo->mm_node);
+		bo->ctx = NULL;
+	}
+
+	if (bo->base.sgt) {
+		if (drm_gem_is_imported(&bo->base.base)) {
+			dma_buf_unmap_attachment(bo->base.base.import_attach,
+						 bo->base.sgt, DMA_BIDIRECTIONAL);
+		} else {
+			dma_unmap_sgtable(vdev->drm.dev, bo->base.sgt, DMA_BIDIRECTIONAL, 0);
+			sg_free_table(bo->base.sgt);
+			kfree(bo->base.sgt);
+		}
+		bo->base.sgt = NULL;
+	}
+}
+
+void ivpu_bo_unbind_all_bos_from_context(struct ivpu_device *vdev, struct ivpu_mmu_context *ctx)
+{
+	struct ivpu_bo *bo;
+
+	if (drm_WARN_ON(&vdev->drm, !ctx))
+		return;
+
+	mutex_lock(&vdev->bo_list_lock);
+	list_for_each_entry(bo, &vdev->bo_list, bo_list_node) {
+		ivpu_bo_lock(bo);
+		if (bo->ctx == ctx) {
+			ivpu_dbg_bo(vdev, bo, "unbind");
+			ivpu_bo_unbind_locked(bo);
+		}
+		ivpu_bo_unlock(bo);
+	}
+	mutex_unlock(&vdev->bo_list_lock);
+}
+
+struct drm_gem_object *ivpu_gem_create_object(struct drm_device *dev, size_t size)
+{
+	struct ivpu_bo *bo;
+
+	if (size == 0 || !PAGE_ALIGNED(size))
+		return ERR_PTR(-EINVAL);
+
+	bo = kzalloc_obj(*bo);
+	if (!bo)
+		return ERR_PTR(-ENOMEM);
+
+	bo->base.base.funcs = &ivpu_gem_funcs;
+	bo->base.pages_mark_dirty_on_put = true; /* VPU can dirty a BO anytime */
+
+	INIT_LIST_HEAD(&bo->bo_list_node);
+
+	return &bo->base.base;
+}
+
+struct drm_gem_object *ivpu_gem_prime_import(struct drm_device *dev,
+					     struct dma_buf *dma_buf)
+{
+	struct ivpu_device *vdev = to_ivpu_device(dev);
+	struct device *attach_dev = dev->dev;
+	struct dma_buf_attachment *attach;
+	struct drm_gem_object *obj;
+	struct ivpu_bo *bo;
+	int ret;
+
+	attach = dma_buf_attach(dma_buf, attach_dev);
+	if (IS_ERR(attach))
+		return ERR_CAST(attach);
+
+	get_dma_buf(dma_buf);
+
+	obj = drm_gem_shmem_prime_import_sg_table(dev, attach, NULL);
+	if (IS_ERR(obj)) {
+		ret = PTR_ERR(obj);
+		goto fail_detach;
+	}
+
+	obj->import_attach = attach;
+	obj->resv = dma_buf->resv;
+
+	bo = to_ivpu_bo(obj);
+
+	mutex_lock(&vdev->bo_list_lock);
+	list_add_tail(&bo->bo_list_node, &vdev->bo_list);
+	mutex_unlock(&vdev->bo_list_lock);
+
+	ivpu_dbg(vdev, BO, "import: bo %8p size %9zu\n", bo, ivpu_bo_size(bo));
+
+	return obj;
+
+fail_detach:
+	dma_buf_detach(dma_buf, attach);
+	dma_buf_put(dma_buf);
+
+	return ERR_PTR(ret);
+}
+
+static struct ivpu_bo *ivpu_bo_alloc(struct ivpu_device *vdev, u64 size, u32 flags)
+{
+	struct drm_gem_shmem_object *shmem;
+	struct ivpu_bo *bo;
+
+	switch (flags & DRM_IVPU_BO_CACHE_MASK) {
+	case DRM_IVPU_BO_CACHED:
+	case DRM_IVPU_BO_WC:
+		break;
+	default:
+		return ERR_PTR(-EINVAL);
+	}
+
+	shmem = drm_gem_shmem_create(&vdev->drm, size);
+	if (IS_ERR(shmem))
+		return ERR_CAST(shmem);
+
+	bo = to_ivpu_bo(&shmem->base);
+	bo->base.map_wc = flags & DRM_IVPU_BO_WC;
+	bo->flags = flags;
+
+	mutex_lock(&vdev->bo_list_lock);
+	list_add_tail(&bo->bo_list_node, &vdev->bo_list);
+	mutex_unlock(&vdev->bo_list_lock);
+
+	ivpu_dbg(vdev, BO, " alloc: bo %8p size %9llu\n", bo, size);
+
+	return bo;
+}
+
+static int ivpu_gem_bo_open(struct drm_gem_object *obj, struct drm_file *file)
+{
+	struct ivpu_file_priv *file_priv = file->driver_priv;
+	struct ivpu_device *vdev = file_priv->vdev;
+	struct ivpu_bo *bo = to_ivpu_bo(obj);
+	struct ivpu_addr_range *range;
+
+	if (bo->ctx) {
+		ivpu_dbg(vdev, IOCTL, "Can't add BO %pe to ctx %u: already in ctx %u\n",
+			 bo, file_priv->ctx.id, bo->ctx->id);
+		return -EALREADY;
+	}
+
+	if (bo->flags & DRM_IVPU_BO_SHAVE_MEM)
+		range = &vdev->hw->ranges.shave;
+	else if (bo->flags & DRM_IVPU_BO_DMA_MEM)
+		range = &vdev->hw->ranges.dma;
+	else
+		range = &vdev->hw->ranges.user;
+
+	return ivpu_bo_alloc_vpu_addr(bo, &file_priv->ctx, range);
+}
+
+static void ivpu_gem_bo_free(struct drm_gem_object *obj)
+{
+	struct ivpu_device *vdev = to_ivpu_device(obj->dev);
+	struct ivpu_bo *bo = to_ivpu_bo(obj);
+
+	ivpu_dbg_bo(vdev, bo, "free");
+
+	drm_WARN_ON(&vdev->drm, list_empty(&bo->bo_list_node));
+
+	mutex_lock(&vdev->bo_list_lock);
+	list_del(&bo->bo_list_node);
+
+	drm_WARN_ON(&vdev->drm, !drm_gem_is_imported(&bo->base.base) &&
+		    !dma_resv_test_signaled(obj->resv, DMA_RESV_USAGE_READ));
+	drm_WARN_ON(&vdev->drm, ivpu_bo_size(bo) == 0);
+	drm_WARN_ON(&vdev->drm, bo->base.vaddr);
+
+	ivpu_bo_lock(bo);
+	ivpu_bo_unbind_locked(bo);
+	ivpu_bo_unlock(bo);
+
+	mutex_unlock(&vdev->bo_list_lock);
+
+	drm_WARN_ON(&vdev->drm, bo->mmu_mapped);
+	drm_WARN_ON(&vdev->drm, bo->ctx);
+
+	drm_WARN_ON(obj->dev, refcount_read(&bo->base.pages_use_count) > 1);
+	drm_WARN_ON(obj->dev, bo->base.base.vma_node.vm_files.rb_node);
+	drm_gem_shmem_free(&bo->base);
+}
+
+static enum drm_gem_object_status ivpu_gem_status(struct drm_gem_object *obj)
+{
+	struct ivpu_bo *bo = to_ivpu_bo(obj);
+	enum drm_gem_object_status status = 0;
+
+	if (ivpu_bo_is_resident(bo))
+		status |= DRM_GEM_OBJECT_RESIDENT;
+
+	return status;
+}
+
+static const struct drm_gem_object_funcs ivpu_gem_funcs = {
+	.free = ivpu_gem_bo_free,
+	.open = ivpu_gem_bo_open,
+	.print_info = drm_gem_shmem_object_print_info,
+	.pin = drm_gem_shmem_object_pin,
+	.unpin = drm_gem_shmem_object_unpin,
+	.get_sg_table = drm_gem_shmem_object_get_sg_table,
+	.vmap = drm_gem_shmem_object_vmap,
+	.vunmap = drm_gem_shmem_object_vunmap,
+	.mmap = drm_gem_shmem_object_mmap,
+	.status = ivpu_gem_status,
+	.vm_ops = &drm_gem_shmem_vm_ops,
+};
+
+int ivpu_bo_create_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 drm_ivpu_bo_create *args = data;
+	u64 size = PAGE_ALIGN(args->size);
+	struct ivpu_bo *bo;
+	int ret;
+
+	if (args->flags & ~DRM_IVPU_BO_FLAGS) {
+		ivpu_dbg(vdev, IOCTL, "Invalid BO flags 0x%x\n", args->flags);
+		return -EINVAL;
+	}
+
+	if (size == 0) {
+		ivpu_dbg(vdev, IOCTL, "Invalid BO size %llu\n", args->size);
+		return -EINVAL;
+	}
+
+	bo = ivpu_bo_alloc(vdev, size, args->flags);
+	if (IS_ERR(bo)) {
+		ivpu_dbg(vdev, IOCTL, "Failed to allocate BO: %pe ctx %u size %llu flags 0x%x\n",
+			 bo, file_priv->ctx.id, args->size, args->flags);
+		return PTR_ERR(bo);
+	}
+
+	drm_WARN_ON(&vdev->drm, bo->base.base.handle_count != 0);
+
+	ret = drm_gem_handle_create(file, &bo->base.base, &args->handle);
+	if (ret) {
+		ivpu_dbg(vdev, IOCTL, "Failed to create handle for BO: %pe ctx %u size %llu flags 0x%x\n",
+			 bo, file_priv->ctx.id, args->size, args->flags);
+	} else {
+		args->vpu_addr = bo->vpu_addr;
+		drm_WARN_ON(&vdev->drm, bo->base.base.handle_count != 1);
+	}
+
+	drm_gem_object_put(&bo->base.base);
+
+	return ret;
+}
+
+struct ivpu_bo *
+ivpu_bo_create(struct ivpu_device *vdev, struct ivpu_mmu_context *ctx,
+	       struct ivpu_addr_range *range, u64 size, u32 flags)
+{
+	struct iosys_map map;
+	struct ivpu_bo *bo;
+	int ret;
+
+	if (drm_WARN_ON(&vdev->drm, !range))
+		return NULL;
+
+	drm_WARN_ON(&vdev->drm, !PAGE_ALIGNED(range->start));
+	drm_WARN_ON(&vdev->drm, !PAGE_ALIGNED(range->end));
+	drm_WARN_ON(&vdev->drm, !PAGE_ALIGNED(size));
+
+	bo = ivpu_bo_alloc(vdev, size, flags);
+	if (IS_ERR(bo)) {
+		ivpu_err(vdev, "Failed to allocate BO: %pe vpu_addr 0x%llx size %llu flags 0x%x\n",
+			 bo, range->start, size, flags);
+		return NULL;
+	}
+
+	ret = ivpu_bo_alloc_vpu_addr(bo, ctx, range);
+	if (ret) {
+		ivpu_err(vdev, "Failed to allocate NPU address for BO: %pe ctx %u size %llu: %d\n",
+			 bo, ctx->id, size, ret);
+		goto err_put;
+	}
+
+	ret = ivpu_bo_bind(bo);
+	if (ret)
+		goto err_put;
+
+	if (flags & DRM_IVPU_BO_MAPPABLE) {
+		ivpu_bo_lock(bo);
+		ret = drm_gem_shmem_vmap_locked(&bo->base, &map);
+		ivpu_bo_unlock(bo);
+
+		if (ret)
+			goto err_put;
+	}
+
+	return bo;
+
+err_put:
+	drm_gem_object_put(&bo->base.base);
+	return NULL;
+}
+
+struct ivpu_bo *ivpu_bo_create_runtime(struct ivpu_device *vdev, u64 addr, u64 size, u32 flags)
+{
+	struct ivpu_addr_range range;
+
+	if (!ivpu_is_within_range(addr, size, &vdev->hw->ranges.runtime)) {
+		ivpu_err(vdev, "Invalid runtime BO address 0x%llx size %llu\n", addr, size);
+		return NULL;
+	}
+
+	if (ivpu_hw_range_init(vdev, &range, addr, size))
+		return NULL;
+
+	return ivpu_bo_create(vdev, &vdev->gctx, &range, size, flags);
+}
+
+struct ivpu_bo *ivpu_bo_create_global(struct ivpu_device *vdev, u64 size, u32 flags)
+{
+	return ivpu_bo_create(vdev, &vdev->gctx, &vdev->hw->ranges.global, size, flags);
+}
+
+void ivpu_bo_free(struct ivpu_bo *bo)
+{
+	struct iosys_map map = IOSYS_MAP_INIT_VADDR(bo->base.vaddr);
+
+	if (bo->flags & DRM_IVPU_BO_MAPPABLE) {
+		ivpu_bo_lock(bo);
+		drm_gem_shmem_vunmap_locked(&bo->base, &map);
+		ivpu_bo_unlock(bo);
+	}
+
+	drm_gem_object_put(&bo->base.base);
+}
+
+int ivpu_bo_info_ioctl(struct drm_device *dev, void *data, struct drm_file *file)
+{
+	struct drm_ivpu_bo_info *args = data;
+	struct drm_gem_object *obj;
+	struct ivpu_bo *bo;
+	int ret = 0;
+
+	obj = drm_gem_object_lookup(file, args->handle);
+	if (!obj)
+		return -ENOENT;
+
+	bo = to_ivpu_bo(obj);
+
+	ivpu_bo_lock(bo);
+	args->flags = bo->flags;
+	args->mmap_offset = drm_vma_node_offset_addr(&obj->vma_node);
+	args->vpu_addr = bo->vpu_addr;
+	args->size = obj->size;
+	ivpu_bo_unlock(bo);
+
+	drm_gem_object_put(obj);
+	return ret;
+}
+
+int ivpu_bo_wait_ioctl(struct drm_device *dev, void *data, struct drm_file *file)
+{
+	struct drm_ivpu_bo_wait *args = data;
+	struct drm_gem_object *obj;
+	unsigned long timeout;
+	long ret;
+
+	timeout = drm_timeout_abs_to_jiffies(args->timeout_ns);
+
+	/* Add 1 jiffy to ensure the wait function never times out before intended timeout_ns */
+	timeout += 1;
+
+	obj = drm_gem_object_lookup(file, args->handle);
+	if (!obj)
+		return -EINVAL;
+
+	ret = dma_resv_wait_timeout(obj->resv, DMA_RESV_USAGE_READ, true, timeout);
+	if (ret == 0) {
+		ret = -ETIMEDOUT;
+	} else if (ret > 0) {
+		ret = 0;
+		args->job_status = to_ivpu_bo(obj)->job_status;
+	}
+
+	drm_gem_object_put(obj);
+
+	return ret;
+}
+
+static void ivpu_bo_print_info(struct ivpu_bo *bo, struct drm_printer *p)
+{
+	ivpu_bo_lock(bo);
+
+	drm_printf(p, "%-9p %-3u 0x%-12llx %-10lu 0x%-8x %-4u",
+		   bo, bo->ctx_id, bo->vpu_addr, bo->base.base.size,
+		   bo->flags, kref_read(&bo->base.base.refcount));
+
+	if (bo->base.pages)
+		drm_printf(p, " has_pages");
+
+	if (bo->mmu_mapped)
+		drm_printf(p, " mmu_mapped");
+
+	if (drm_gem_is_imported(&bo->base.base))
+		drm_printf(p, " imported");
+
+	drm_printf(p, "\n");
+
+	ivpu_bo_unlock(bo);
+}
+
+void ivpu_bo_list(struct drm_device *dev, struct drm_printer *p)
+{
+	struct ivpu_device *vdev = to_ivpu_device(dev);
+	struct ivpu_bo *bo;
+
+	drm_printf(p, "%-9s %-3s %-14s %-10s %-10s %-4s %s\n",
+		   "bo", "ctx", "vpu_addr", "size", "flags", "refs", "attribs");
+
+	mutex_lock(&vdev->bo_list_lock);
+	list_for_each_entry(bo, &vdev->bo_list, bo_list_node)
+		ivpu_bo_print_info(bo, p);
+	mutex_unlock(&vdev->bo_list_lock);
+}
+
+void ivpu_bo_list_print(struct drm_device *dev)
+{
+	struct drm_printer p = drm_info_printer(dev->dev);
+
+	ivpu_bo_list(dev, &p);
+}

linux-7.2.3/drivers/accel/ivpu/ivpu_gem.h

@@ -0,0 +1,117 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2020-2025 Intel Corporation
+ */
+#ifndef __IVPU_GEM_H__
+#define __IVPU_GEM_H__
+
+#include <drm/drm_gem.h>
+#include <drm/drm_gem_shmem_helper.h>
+#include <drm/drm_mm.h>
+
+struct ivpu_file_priv;
+
+struct ivpu_bo {
+	struct drm_gem_shmem_object base;
+	struct ivpu_mmu_context *ctx;
+	struct list_head bo_list_node;
+	struct drm_mm_node mm_node;
+
+	u64 vpu_addr;
+	u32 flags;
+	u32 job_status; /* Valid only for command buffer */
+	u32 ctx_id;
+	bool mmu_mapped;
+};
+
+int ivpu_bo_bind(struct ivpu_bo *bo);
+void ivpu_bo_unbind_all_bos_from_context(struct ivpu_device *vdev, struct ivpu_mmu_context *ctx);
+
+struct drm_gem_object *ivpu_gem_create_object(struct drm_device *dev, size_t size);
+struct drm_gem_object *ivpu_gem_prime_import(struct drm_device *dev, struct dma_buf *dma_buf);
+struct ivpu_bo *ivpu_bo_create(struct ivpu_device *vdev, struct ivpu_mmu_context *ctx,
+			       struct ivpu_addr_range *range, u64 size, u32 flags);
+struct ivpu_bo *ivpu_bo_create_runtime(struct ivpu_device *vdev, u64 addr, u64 size, u32 flags);
+struct ivpu_bo *ivpu_bo_create_global(struct ivpu_device *vdev, u64 size, u32 flags);
+void ivpu_bo_free(struct ivpu_bo *bo);
+
+int ivpu_bo_create_ioctl(struct drm_device *dev, void *data, struct drm_file *file);
+int ivpu_bo_info_ioctl(struct drm_device *dev, void *data, struct drm_file *file);
+int ivpu_bo_wait_ioctl(struct drm_device *dev, void *data, struct drm_file *file);
+int ivpu_bo_create_from_userptr_ioctl(struct drm_device *dev, void *data,
+				      struct drm_file *file);
+
+void ivpu_bo_list(struct drm_device *dev, struct drm_printer *p);
+void ivpu_bo_list_print(struct drm_device *dev);
+
+static inline struct ivpu_bo *to_ivpu_bo(struct drm_gem_object *obj)
+{
+	return container_of(obj, struct ivpu_bo, base.base);
+}
+
+static inline void *ivpu_bo_vaddr(struct ivpu_bo *bo)
+{
+	return bo->base.vaddr;
+}
+
+static inline size_t ivpu_bo_size(struct ivpu_bo *bo)
+{
+	return bo->base.base.size;
+}
+
+static inline u32 ivpu_bo_cache_mode(struct ivpu_bo *bo)
+{
+	return bo->flags & DRM_IVPU_BO_CACHE_MASK;
+}
+
+static inline struct ivpu_device *ivpu_bo_to_vdev(struct ivpu_bo *bo)
+{
+	return to_ivpu_device(bo->base.base.dev);
+}
+
+static inline bool ivpu_bo_is_snooped(struct ivpu_bo *bo)
+{
+	if (ivpu_is_force_snoop_enabled(ivpu_bo_to_vdev(bo)))
+		return true;
+
+	return ivpu_bo_cache_mode(bo) == DRM_IVPU_BO_CACHED;
+}
+
+static inline bool ivpu_bo_is_read_only(struct ivpu_bo *bo)
+{
+	return bo->flags & DRM_IVPU_BO_READ_ONLY;
+}
+
+static inline bool ivpu_bo_is_resident(struct ivpu_bo *bo)
+{
+	return !!bo->base.pages;
+}
+
+static inline void *ivpu_to_cpu_addr(struct ivpu_bo *bo, u32 vpu_addr)
+{
+	if (vpu_addr < bo->vpu_addr)
+		return NULL;
+
+	if (vpu_addr >= (bo->vpu_addr + ivpu_bo_size(bo)))
+		return NULL;
+
+	return ivpu_bo_vaddr(bo) + (vpu_addr - bo->vpu_addr);
+}
+
+static inline u32 cpu_to_vpu_addr(struct ivpu_bo *bo, void *cpu_addr)
+{
+	if (cpu_addr < ivpu_bo_vaddr(bo))
+		return 0;
+
+	if (cpu_addr >= (ivpu_bo_vaddr(bo) + ivpu_bo_size(bo)))
+		return 0;
+
+	return bo->vpu_addr + (cpu_addr - ivpu_bo_vaddr(bo));
+}
+
+static inline bool ivpu_bo_is_mappable(struct ivpu_bo *bo)
+{
+	return bo->flags & DRM_IVPU_BO_MAPPABLE;
+}
+
+#endif /* __IVPU_GEM_H__ */

linux-7.2.3/drivers/accel/ivpu/ivpu_gem_userptr.c

@@ -0,0 +1,213 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2020-2025 Intel Corporation
+ */
+
+#include <linux/dma-buf.h>
+#include <linux/err.h>
+#include <linux/highmem.h>
+#include <linux/mm.h>
+#include <linux/mman.h>
+#include <linux/scatterlist.h>
+#include <linux/slab.h>
+#include <linux/capability.h>
+
+#include <drm/drm_device.h>
+#include <drm/drm_file.h>
+#include <drm/drm_gem.h>
+
+#include "ivpu_drv.h"
+#include "ivpu_gem.h"
+
+static struct sg_table *
+ivpu_gem_userptr_dmabuf_map(struct dma_buf_attachment *attachment,
+			    enum dma_data_direction direction)
+{
+	struct sg_table *sgt = attachment->dmabuf->priv;
+	int ret;
+
+	ret = dma_map_sgtable(attachment->dev, sgt, direction, DMA_ATTR_SKIP_CPU_SYNC);
+	if (ret)
+		return ERR_PTR(ret);
+
+	return sgt;
+}
+
+static void ivpu_gem_userptr_dmabuf_unmap(struct dma_buf_attachment *attachment,
+					  struct sg_table *sgt,
+					  enum dma_data_direction direction)
+{
+	dma_unmap_sgtable(attachment->dev, sgt, direction, DMA_ATTR_SKIP_CPU_SYNC);
+}
+
+static void ivpu_gem_userptr_dmabuf_release(struct dma_buf *dma_buf)
+{
+	struct sg_table *sgt = dma_buf->priv;
+	struct sg_page_iter page_iter;
+	struct page *page;
+
+	for_each_sgtable_page(sgt, &page_iter, 0) {
+		page = sg_page_iter_page(&page_iter);
+		unpin_user_page(page);
+	}
+
+	sg_free_table(sgt);
+	kfree(sgt);
+}
+
+static const struct dma_buf_ops ivpu_gem_userptr_dmabuf_ops = {
+	.map_dma_buf = ivpu_gem_userptr_dmabuf_map,
+	.unmap_dma_buf = ivpu_gem_userptr_dmabuf_unmap,
+	.release = ivpu_gem_userptr_dmabuf_release,
+};
+
+static struct dma_buf *
+ivpu_create_userptr_dmabuf(struct ivpu_device *vdev, void __user *user_ptr,
+			   size_t size, uint32_t flags)
+{
+	struct dma_buf_export_info exp_info = {};
+	struct dma_buf *dma_buf;
+	struct sg_table *sgt;
+	struct page **pages;
+	unsigned long nr_pages = size >> PAGE_SHIFT;
+	unsigned int gup_flags = FOLL_LONGTERM;
+	int ret, i, pinned;
+
+	/* Add FOLL_WRITE only if the BO is not read-only */
+	if (!(flags & DRM_IVPU_BO_READ_ONLY))
+		gup_flags |= FOLL_WRITE;
+
+	pages = kvmalloc_objs(*pages, nr_pages);
+	if (!pages)
+		return ERR_PTR(-ENOMEM);
+
+	pinned = pin_user_pages_fast((unsigned long)user_ptr, nr_pages, gup_flags, pages);
+	if (pinned < 0) {
+		ret = pinned;
+		ivpu_dbg(vdev, IOCTL, "Failed to pin user pages: %d\n", ret);
+		goto free_pages_array;
+	}
+
+	if (pinned != nr_pages) {
+		ivpu_dbg(vdev, IOCTL, "Pinned %d pages, expected %lu\n", pinned, nr_pages);
+		ret = -EFAULT;
+		goto unpin_pages;
+	}
+
+	sgt = kmalloc_obj(*sgt);
+	if (!sgt) {
+		ret = -ENOMEM;
+		goto unpin_pages;
+	}
+
+	ret = sg_alloc_table_from_pages(sgt, pages, nr_pages, 0, size, GFP_KERNEL);
+	if (ret) {
+		ivpu_dbg(vdev, IOCTL, "Failed to create sg table: %d\n", ret);
+		goto free_sgt;
+	}
+
+	exp_info.exp_name = "ivpu_userptr_dmabuf";
+	exp_info.owner = THIS_MODULE;
+	exp_info.ops = &ivpu_gem_userptr_dmabuf_ops;
+	exp_info.size = size;
+	exp_info.flags = O_RDWR | O_CLOEXEC;
+	exp_info.priv = sgt;
+
+	dma_buf = dma_buf_export(&exp_info);
+	if (IS_ERR(dma_buf)) {
+		ret = PTR_ERR(dma_buf);
+		ivpu_dbg(vdev, IOCTL, "Failed to export userptr dma-buf: %d\n", ret);
+		goto free_sg_table;
+	}
+
+	kvfree(pages);
+	return dma_buf;
+
+free_sg_table:
+	sg_free_table(sgt);
+free_sgt:
+	kfree(sgt);
+unpin_pages:
+	for (i = 0; i < pinned; i++)
+		unpin_user_page(pages[i]);
+free_pages_array:
+	kvfree(pages);
+	return ERR_PTR(ret);
+}
+
+static struct ivpu_bo *
+ivpu_bo_create_from_userptr(struct ivpu_device *vdev, void __user *user_ptr,
+			    size_t size, uint32_t flags)
+{
+	struct dma_buf *dma_buf;
+	struct drm_gem_object *obj;
+	struct ivpu_bo *bo;
+
+	dma_buf = ivpu_create_userptr_dmabuf(vdev, user_ptr, size, flags);
+	if (IS_ERR(dma_buf))
+		return ERR_CAST(dma_buf);
+
+	obj = ivpu_gem_prime_import(&vdev->drm, dma_buf);
+	if (IS_ERR(obj)) {
+		dma_buf_put(dma_buf);
+		return ERR_CAST(obj);
+	}
+
+	dma_buf_put(dma_buf);
+
+	bo = to_ivpu_bo(obj);
+	bo->flags = flags;
+
+	return bo;
+}
+
+int ivpu_bo_create_from_userptr_ioctl(struct drm_device *dev, void *data, struct drm_file *file)
+{
+	struct drm_ivpu_bo_create_from_userptr *args = data;
+	struct ivpu_file_priv *file_priv = file->driver_priv;
+	struct ivpu_device *vdev = to_ivpu_device(dev);
+	void __user *user_ptr = u64_to_user_ptr(args->user_ptr);
+	struct ivpu_bo *bo;
+	int ret;
+
+	if (args->flags & ~(DRM_IVPU_BO_HIGH_MEM | DRM_IVPU_BO_DMA_MEM | DRM_IVPU_BO_READ_ONLY)) {
+		ivpu_dbg(vdev, IOCTL, "Invalid BO flags: 0x%x\n", args->flags);
+		return -EINVAL;
+	}
+
+	if (!args->user_ptr || !args->size) {
+		ivpu_dbg(vdev, IOCTL, "Userptr or size are zero: ptr %llx size %llu\n",
+			 args->user_ptr, args->size);
+		return -EINVAL;
+	}
+
+	if (!PAGE_ALIGNED(args->user_ptr) || !PAGE_ALIGNED(args->size)) {
+		ivpu_dbg(vdev, IOCTL, "Userptr or size not page aligned: ptr %llx size %llu\n",
+			 args->user_ptr, args->size);
+		return -EINVAL;
+	}
+
+	if (!access_ok(user_ptr, args->size)) {
+		ivpu_dbg(vdev, IOCTL, "Userptr is not accessible: ptr %llx size %llu\n",
+			 args->user_ptr, args->size);
+		return -EFAULT;
+	}
+
+	bo = ivpu_bo_create_from_userptr(vdev, user_ptr, args->size, args->flags);
+	if (IS_ERR(bo))
+		return PTR_ERR(bo);
+
+	ret = drm_gem_handle_create(file, &bo->base.base, &args->handle);
+	if (ret) {
+		ivpu_dbg(vdev, IOCTL, "Failed to create handle for BO: %pe ctx %u size %llu flags 0x%x\n",
+			 bo, file_priv->ctx.id, args->size, args->flags);
+	} else {
+		ivpu_dbg(vdev, BO, "Created userptr BO: handle=%u vpu_addr=0x%llx size=%llu flags=0x%x\n",
+			 args->handle, bo->vpu_addr, args->size, bo->flags);
+		args->vpu_addr = bo->vpu_addr;
+	}
+
+	drm_gem_object_put(&bo->base.base);
+
+	return ret;
+}

linux-7.2.3/drivers/accel/ivpu/ivpu_hw.c

@@ -0,0 +1,422 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2020 - 2024 Intel Corporation
+ */
+
+#include "ivpu_drv.h"
+#include "ivpu_hw.h"
+#include "ivpu_hw_btrs.h"
+#include "ivpu_hw_ip.h"
+
+#include <asm/msr-index.h>
+#include <asm/msr.h>
+#include <linux/dmi.h>
+#include <linux/fault-inject.h>
+#include <linux/pm_runtime.h>
+
+#ifdef CONFIG_FAULT_INJECTION
+DECLARE_FAULT_ATTR(ivpu_hw_failure);
+
+static char *ivpu_fail_hw;
+module_param_named_unsafe(fail_hw, ivpu_fail_hw, charp, 0444);
+MODULE_PARM_DESC(fail_hw, "<interval>,<probability>,<space>,<times>");
+#endif
+
+#define FW_SHARED_MEM_ALIGNMENT	SZ_512K /* VPU MTRR limitation */
+
+#define ECC_MCA_SIGNAL_ENABLE_MASK	0xff
+
+static char *platform_to_str(u32 platform)
+{
+	switch (platform) {
+	case IVPU_PLATFORM_SILICON:
+		return "SILICON";
+	case IVPU_PLATFORM_SIMICS:
+		return "SIMICS";
+	case IVPU_PLATFORM_FPGA:
+		return "FPGA";
+	case IVPU_PLATFORM_HSLE:
+		return "HSLE";
+	default:
+		return "Invalid platform";
+	}
+}
+
+static void platform_init(struct ivpu_device *vdev)
+{
+	int platform = ivpu_hw_btrs_platform_read(vdev);
+
+	ivpu_dbg(vdev, MISC, "Platform type: %s (%d)\n", platform_to_str(platform), platform);
+
+	switch (platform) {
+	case IVPU_PLATFORM_SILICON:
+	case IVPU_PLATFORM_SIMICS:
+	case IVPU_PLATFORM_FPGA:
+	case IVPU_PLATFORM_HSLE:
+		vdev->platform = platform;
+		break;
+
+	default:
+		ivpu_err(vdev, "Invalid platform type: %d\n", platform);
+		break;
+	}
+}
+
+static void wa_init(struct ivpu_device *vdev)
+{
+	vdev->wa.punit_disabled = false;
+	vdev->wa.clear_runtime_mem = false;
+
+	if (ivpu_hw_btrs_gen(vdev) == IVPU_HW_BTRS_MTL)
+		vdev->wa.interrupt_clear_with_0 = ivpu_hw_btrs_irqs_clear_with_0_mtl(vdev);
+
+	if ((ivpu_device_id(vdev) == PCI_DEVICE_ID_LNL &&
+	     ivpu_revision(vdev) < IVPU_HW_IP_REV_LNL_B0) ||
+	    (ivpu_device_id(vdev) == PCI_DEVICE_ID_NVL &&
+	     ivpu_revision(vdev) == IVPU_HW_IP_REV_NVL_A0))
+		vdev->wa.disable_clock_relinquish = true;
+
+	if (ivpu_test_mode & IVPU_TEST_MODE_CLK_RELINQ_ENABLE)
+		vdev->wa.disable_clock_relinquish = false;
+
+	if (ivpu_test_mode & IVPU_TEST_MODE_CLK_RELINQ_DISABLE)
+		vdev->wa.disable_clock_relinquish = true;
+
+	if (ivpu_hw_ip_gen(vdev) == IVPU_HW_IP_37XX)
+		vdev->wa.wp0_during_power_up = true;
+
+	if (ivpu_test_mode & IVPU_TEST_MODE_D0I2_DISABLE)
+		vdev->wa.disable_d0i2 = true;
+
+	IVPU_PRINT_WA(punit_disabled);
+	IVPU_PRINT_WA(clear_runtime_mem);
+	IVPU_PRINT_WA(interrupt_clear_with_0);
+	IVPU_PRINT_WA(disable_clock_relinquish);
+	IVPU_PRINT_WA(wp0_during_power_up);
+	IVPU_PRINT_WA(disable_d0i2);
+}
+
+static void timeouts_init(struct ivpu_device *vdev)
+{
+	if (ivpu_test_mode & IVPU_TEST_MODE_DISABLE_TIMEOUTS) {
+		vdev->timeout.boot = -1;
+		vdev->timeout.jsm = -1;
+		vdev->timeout.tdr = -1;
+		vdev->timeout.inference = -1;
+		vdev->timeout.autosuspend = -1;
+		vdev->timeout.d0i3_entry_msg = -1;
+	} else if (ivpu_is_fpga(vdev)) {
+		vdev->timeout.boot = 50;
+		vdev->timeout.jsm = 15000;
+		vdev->timeout.tdr = 30000;
+		vdev->timeout.inference = 900000;
+		vdev->timeout.autosuspend = -1;
+		vdev->timeout.d0i3_entry_msg = 500;
+		vdev->timeout.state_dump_msg = 10000;
+	} else if (ivpu_is_simics(vdev)) {
+		vdev->timeout.boot = 50;
+		vdev->timeout.jsm = 500;
+		vdev->timeout.tdr = 10000;
+		vdev->timeout.inference = 300000;
+		vdev->timeout.autosuspend = 100;
+		vdev->timeout.d0i3_entry_msg = 100;
+		vdev->timeout.state_dump_msg = 10;
+	} else {
+		vdev->timeout.boot = 1000;
+		vdev->timeout.jsm = 500;
+		vdev->timeout.tdr = 2000;
+		vdev->timeout.inference = 60000;
+		if (ivpu_hw_ip_gen(vdev) == IVPU_HW_IP_37XX)
+			vdev->timeout.autosuspend = 10;
+		else
+			vdev->timeout.autosuspend = 100;
+		vdev->timeout.d0i3_entry_msg = 5;
+		vdev->timeout.state_dump_msg = 100;
+	}
+}
+
+static void priority_bands_init(struct ivpu_device *vdev)
+{
+	/* Idle */
+	vdev->hw->hws.grace_period[VPU_JOB_SCHEDULING_PRIORITY_BAND_IDLE] = 0;
+	vdev->hw->hws.process_grace_period[VPU_JOB_SCHEDULING_PRIORITY_BAND_IDLE] = 50000;
+	vdev->hw->hws.process_quantum[VPU_JOB_SCHEDULING_PRIORITY_BAND_IDLE] = 160000;
+	/* Normal */
+	vdev->hw->hws.grace_period[VPU_JOB_SCHEDULING_PRIORITY_BAND_NORMAL] = 50000;
+	vdev->hw->hws.process_grace_period[VPU_JOB_SCHEDULING_PRIORITY_BAND_NORMAL] = 50000;
+	vdev->hw->hws.process_quantum[VPU_JOB_SCHEDULING_PRIORITY_BAND_NORMAL] = 300000;
+	/* Focus */
+	vdev->hw->hws.grace_period[VPU_JOB_SCHEDULING_PRIORITY_BAND_FOCUS] = 50000;
+	vdev->hw->hws.process_grace_period[VPU_JOB_SCHEDULING_PRIORITY_BAND_FOCUS] = 50000;
+	vdev->hw->hws.process_quantum[VPU_JOB_SCHEDULING_PRIORITY_BAND_FOCUS] = 200000;
+	/* Realtime */
+	vdev->hw->hws.grace_period[VPU_JOB_SCHEDULING_PRIORITY_BAND_REALTIME] = 0;
+	vdev->hw->hws.process_grace_period[VPU_JOB_SCHEDULING_PRIORITY_BAND_REALTIME] = 50000;
+	vdev->hw->hws.process_quantum[VPU_JOB_SCHEDULING_PRIORITY_BAND_REALTIME] = 200000;
+}
+
+int ivpu_hw_range_init(struct ivpu_device *vdev, struct ivpu_addr_range *range, u64 start, u64 size)
+{
+	u64 end;
+
+	if (!range || check_add_overflow(start, size, &end)) {
+		ivpu_err(vdev, "Invalid range: start 0x%llx size %llu\n", start, size);
+		return -EINVAL;
+	}
+
+	range->start = start;
+	range->end = end;
+
+	return 0;
+}
+
+static void memory_ranges_init(struct ivpu_device *vdev)
+{
+	if (ivpu_hw_ip_gen(vdev) == IVPU_HW_IP_37XX) {
+		ivpu_hw_range_init(vdev, &vdev->hw->ranges.runtime, 0x84800000, SZ_64M);
+		ivpu_hw_range_init(vdev, &vdev->hw->ranges.global,  0x90000000, SZ_256M);
+		ivpu_hw_range_init(vdev, &vdev->hw->ranges.user,    0xa0000000, 511 * SZ_1M);
+		ivpu_hw_range_init(vdev, &vdev->hw->ranges.shave,  0x180000000, SZ_2G);
+		ivpu_hw_range_init(vdev, &vdev->hw->ranges.dma,    0x200000000, SZ_128G);
+	} else {
+		ivpu_hw_range_init(vdev, &vdev->hw->ranges.runtime, 0x80000000, SZ_64M);
+		ivpu_hw_range_init(vdev, &vdev->hw->ranges.global,  0x90000000, SZ_256M);
+		ivpu_hw_range_init(vdev, &vdev->hw->ranges.shave,   0x80000000, SZ_2G);
+		ivpu_hw_range_init(vdev, &vdev->hw->ranges.user,   0x100000000, SZ_256G);
+		vdev->hw->ranges.dma = vdev->hw->ranges.user;
+	}
+
+	drm_WARN_ON(&vdev->drm, !IS_ALIGNED(vdev->hw->ranges.global.start,
+					    FW_SHARED_MEM_ALIGNMENT));
+}
+
+static int wp_enable(struct ivpu_device *vdev)
+{
+	return ivpu_hw_btrs_wp_drive(vdev, true);
+}
+
+static int wp_disable(struct ivpu_device *vdev)
+{
+	return ivpu_hw_btrs_wp_drive(vdev, false);
+}
+
+int ivpu_hw_power_up(struct ivpu_device *vdev)
+{
+	int ret;
+
+	if (IVPU_WA(wp0_during_power_up)) {
+		/* WP requests may fail when powering down, so issue WP 0 here */
+		ret = wp_disable(vdev);
+		if (ret)
+			ivpu_warn(vdev, "Failed to disable workpoint: %d\n", ret);
+	}
+
+	ret = ivpu_hw_btrs_d0i3_disable(vdev);
+	if (ret)
+		ivpu_warn(vdev, "Failed to disable D0I3: %d\n", ret);
+
+	ret = wp_enable(vdev);
+	if (ret) {
+		ivpu_err(vdev, "Failed to enable workpoint: %d\n", ret);
+		return ret;
+	}
+
+	if (ivpu_hw_btrs_gen(vdev) >= IVPU_HW_BTRS_LNL) {
+		if (IVPU_WA(disable_clock_relinquish))
+			ivpu_hw_btrs_clock_relinquish_disable_lnl(vdev);
+		ivpu_hw_btrs_profiling_freq_reg_set_lnl(vdev);
+		ivpu_hw_btrs_ats_print_lnl(vdev);
+	}
+
+	ret = ivpu_hw_ip_host_ss_configure(vdev);
+	if (ret) {
+		ivpu_err(vdev, "Failed to configure host SS: %d\n", ret);
+		return ret;
+	}
+
+	ivpu_hw_ip_idle_gen_disable(vdev);
+
+	ret = ivpu_hw_btrs_wait_for_clock_res_own_ack(vdev);
+	if (ret) {
+		ivpu_err(vdev, "Timed out waiting for clock resource own ACK\n");
+		return ret;
+	}
+
+	ret = ivpu_hw_ip_pwr_domain_enable(vdev);
+	if (ret) {
+		ivpu_err(vdev, "Failed to enable power domain: %d\n", ret);
+		return ret;
+	}
+
+	ret = ivpu_hw_ip_host_ss_axi_enable(vdev);
+	if (ret) {
+		ivpu_err(vdev, "Failed to enable AXI: %d\n", ret);
+		return ret;
+	}
+
+	if (ivpu_hw_btrs_gen(vdev) == IVPU_HW_BTRS_LNL)
+		ivpu_hw_btrs_set_port_arbitration_weights_lnl(vdev);
+
+	ret = ivpu_hw_ip_top_noc_enable(vdev);
+	if (ret)
+		ivpu_err(vdev, "Failed to enable TOP NOC: %d\n", ret);
+
+	return ret;
+}
+
+static void save_d0i3_entry_timestamp(struct ivpu_device *vdev)
+{
+	vdev->hw->d0i3_entry_host_ts = ktime_get_boottime();
+	vdev->hw->d0i3_entry_vpu_ts = ivpu_hw_ip_read_perf_timer_counter(vdev);
+}
+
+int ivpu_hw_reset(struct ivpu_device *vdev)
+{
+	int ret = 0;
+
+	if (ivpu_hw_btrs_ip_reset(vdev)) {
+		ivpu_err(vdev, "Failed to reset NPU IP\n");
+		ret = -EIO;
+	}
+
+	if (wp_disable(vdev)) {
+		ivpu_err(vdev, "Failed to disable workpoint\n");
+		ret = -EIO;
+	}
+
+	return ret;
+}
+
+int ivpu_hw_power_down(struct ivpu_device *vdev)
+{
+	int ret = 0;
+
+	save_d0i3_entry_timestamp(vdev);
+
+	if (!ivpu_hw_is_idle(vdev))
+		ivpu_warn(vdev, "NPU not idle during power down\n");
+
+	if (ivpu_hw_reset(vdev)) {
+		ivpu_err(vdev, "Failed to reset NPU\n");
+		ret = -EIO;
+	}
+
+	if (ivpu_hw_btrs_d0i3_enable(vdev)) {
+		ivpu_err(vdev, "Failed to enter D0I3\n");
+		ret = -EIO;
+	}
+
+	return ret;
+}
+
+int ivpu_hw_init(struct ivpu_device *vdev)
+{
+	ivpu_hw_btrs_info_init(vdev);
+	ivpu_hw_btrs_freq_ratios_init(vdev);
+	priority_bands_init(vdev);
+	memory_ranges_init(vdev);
+	platform_init(vdev);
+	wa_init(vdev);
+	timeouts_init(vdev);
+	atomic_set(&vdev->hw->firewall_irq_counter, 0);
+
+#ifdef CONFIG_FAULT_INJECTION
+	if (ivpu_fail_hw)
+		setup_fault_attr(&ivpu_hw_failure, ivpu_fail_hw);
+#endif
+
+	return 0;
+}
+
+int ivpu_hw_boot_fw(struct ivpu_device *vdev)
+{
+	int ret;
+
+	ivpu_hw_ip_snoop_disable(vdev);
+	ivpu_hw_ip_tbu_mmu_enable(vdev);
+	ret = ivpu_hw_ip_soc_cpu_boot(vdev);
+	if (ret)
+		ivpu_err(vdev, "Failed to boot SOC CPU: %d\n", ret);
+
+	return ret;
+}
+
+void ivpu_hw_profiling_freq_drive(struct ivpu_device *vdev, bool enable)
+{
+	if (ivpu_hw_ip_gen(vdev) == IVPU_HW_IP_37XX) {
+		vdev->hw->pll.profiling_freq = PLL_PROFILING_FREQ_DEFAULT;
+		return;
+	}
+
+	if (enable)
+		vdev->hw->pll.profiling_freq = PLL_PROFILING_FREQ_HIGH;
+	else
+		vdev->hw->pll.profiling_freq = PLL_PROFILING_FREQ_DEFAULT;
+}
+
+void ivpu_irq_handlers_init(struct ivpu_device *vdev)
+{
+	if (ivpu_hw_ip_gen(vdev) == IVPU_HW_IP_37XX)
+		vdev->hw->irq.ip_irq_handler = ivpu_hw_ip_irq_handler_37xx;
+	else
+		vdev->hw->irq.ip_irq_handler = ivpu_hw_ip_irq_handler_40xx;
+
+	if (ivpu_hw_btrs_gen(vdev) == IVPU_HW_BTRS_MTL)
+		vdev->hw->irq.btrs_irq_handler = ivpu_hw_btrs_irq_handler_mtl;
+	else
+		vdev->hw->irq.btrs_irq_handler = ivpu_hw_btrs_irq_handler_lnl;
+}
+
+void ivpu_hw_irq_enable(struct ivpu_device *vdev)
+{
+	ivpu_hw_ip_irq_enable(vdev);
+	ivpu_hw_btrs_irq_enable(vdev);
+}
+
+void ivpu_hw_irq_disable(struct ivpu_device *vdev)
+{
+	ivpu_hw_btrs_irq_disable(vdev);
+	ivpu_hw_ip_irq_disable(vdev);
+}
+
+irqreturn_t ivpu_hw_irq_handler(int irq, void *ptr)
+{
+	struct ivpu_device *vdev = ptr;
+	bool ip_handled, btrs_handled;
+
+	ivpu_hw_btrs_global_int_disable(vdev);
+
+	btrs_handled = ivpu_hw_btrs_irq_handler(vdev, irq);
+	if (!ivpu_hw_is_idle((vdev)) || !btrs_handled)
+		ip_handled = ivpu_hw_ip_irq_handler(vdev, irq);
+	else
+		ip_handled = false;
+
+	/* Re-enable global interrupts to re-trigger MSI for pending interrupts */
+	ivpu_hw_btrs_global_int_enable(vdev);
+
+	if (!ip_handled && !btrs_handled)
+		return IRQ_NONE;
+
+	pm_runtime_mark_last_busy(vdev->drm.dev);
+	return IRQ_HANDLED;
+}
+
+bool ivpu_hw_uses_ecc_mca_signal(struct ivpu_device *vdev)
+{
+	unsigned long long msr_integrity_caps;
+	int ret;
+
+	if (ivpu_hw_ip_gen(vdev) < IVPU_HW_IP_50XX)
+		return false;
+
+	ret = rdmsrq_safe(MSR_INTEGRITY_CAPS, &msr_integrity_caps);
+	if (ret) {
+		ivpu_warn(vdev, "Error reading MSR_INTEGRITY_CAPS: %d", ret);
+		return false;
+	}
+
+	ivpu_dbg(vdev, MISC, "MSR_INTEGRITY_CAPS: 0x%llx\n", msr_integrity_caps);
+
+	return msr_integrity_caps & ECC_MCA_SIGNAL_ENABLE_MASK;
+}

linux-7.2.3/drivers/accel/ivpu/ivpu_hw.h

@@ -0,0 +1,148 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2020-2026 Intel Corporation
+ */
+
+#ifndef __IVPU_HW_H__
+#define __IVPU_HW_H__
+
+#include "ivpu_drv.h"
+#include "ivpu_hw_btrs.h"
+#include "ivpu_hw_ip.h"
+
+struct ivpu_addr_range {
+	resource_size_t start;
+	resource_size_t end;
+};
+
+struct ivpu_hw_info {
+	struct {
+		bool (*btrs_irq_handler)(struct ivpu_device *vdev, int irq);
+		bool (*ip_irq_handler)(struct ivpu_device *vdev, int irq);
+	} irq;
+	struct {
+		struct ivpu_addr_range runtime;
+		struct ivpu_addr_range global;
+		struct ivpu_addr_range user;
+		struct ivpu_addr_range shave;
+		struct ivpu_addr_range dma;
+	} ranges;
+	struct {
+		/* Hardware min and max pll ratio */
+		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;
+		/* Pll ratios configured via sysfs interface */
+		u8 cfg_min_ratio;
+		u8 cfg_max_ratio;
+		u32 profiling_freq;
+	} pll;
+	struct {
+		u32 grace_period[VPU_HWS_NUM_PRIORITY_BANDS];
+		u32 process_quantum[VPU_HWS_NUM_PRIORITY_BANDS];
+		u32 process_grace_period[VPU_HWS_NUM_PRIORITY_BANDS];
+	} hws;
+	u32 tile_fuse;
+	u32 sku;
+	u16 config;
+	int dma_bits;
+	ktime_t d0i3_entry_host_ts;
+	u64 d0i3_entry_vpu_ts;
+	atomic_t firewall_irq_counter;
+};
+
+int ivpu_hw_init(struct ivpu_device *vdev);
+int ivpu_hw_range_init(struct ivpu_device *vdev, struct ivpu_addr_range *range, u64 start,
+		       u64 size);
+int ivpu_hw_power_up(struct ivpu_device *vdev);
+int ivpu_hw_power_down(struct ivpu_device *vdev);
+int ivpu_hw_reset(struct ivpu_device *vdev);
+int ivpu_hw_boot_fw(struct ivpu_device *vdev);
+void ivpu_hw_profiling_freq_drive(struct ivpu_device *vdev, bool enable);
+void ivpu_irq_handlers_init(struct ivpu_device *vdev);
+void ivpu_hw_irq_enable(struct ivpu_device *vdev);
+void ivpu_hw_irq_disable(struct ivpu_device *vdev);
+irqreturn_t ivpu_hw_irq_handler(int irq, void *ptr);
+bool ivpu_hw_uses_ecc_mca_signal(struct ivpu_device *vdev);
+
+static inline u32 ivpu_hw_btrs_irq_handler(struct ivpu_device *vdev, int irq)
+{
+	return vdev->hw->irq.btrs_irq_handler(vdev, irq);
+}
+
+static inline u32 ivpu_hw_ip_irq_handler(struct ivpu_device *vdev, int irq)
+{
+	return vdev->hw->irq.ip_irq_handler(vdev, irq);
+}
+
+static inline u64 ivpu_hw_range_size(const struct ivpu_addr_range *range)
+{
+	return range->end - range->start;
+}
+
+static inline void ivpu_hw_irq_clear(struct ivpu_device *vdev)
+{
+	ivpu_hw_ip_irq_clear(vdev);
+}
+
+static inline u32 ivpu_hw_profiling_freq_get(struct ivpu_device *vdev)
+{
+	return vdev->hw->pll.profiling_freq;
+}
+
+static inline void ivpu_hw_diagnose_failure(struct ivpu_device *vdev)
+{
+	ivpu_hw_ip_diagnose_failure(vdev);
+	ivpu_hw_btrs_diagnose_failure(vdev);
+}
+
+static inline u32 ivpu_hw_telemetry_offset_get(struct ivpu_device *vdev)
+{
+	return ivpu_hw_btrs_telemetry_offset_get(vdev);
+}
+
+static inline u32 ivpu_hw_telemetry_size_get(struct ivpu_device *vdev)
+{
+	return ivpu_hw_btrs_telemetry_size_get(vdev);
+}
+
+static inline u32 ivpu_hw_telemetry_enable_get(struct ivpu_device *vdev)
+{
+	return ivpu_hw_btrs_telemetry_enable_get(vdev);
+}
+
+static inline bool ivpu_hw_is_idle(struct ivpu_device *vdev)
+{
+	return ivpu_hw_btrs_is_idle(vdev);
+}
+
+static inline int ivpu_hw_wait_for_idle(struct ivpu_device *vdev)
+{
+	return ivpu_hw_btrs_wait_for_idle(vdev);
+}
+
+static inline void ivpu_hw_ipc_tx_set(struct ivpu_device *vdev, u32 vpu_addr)
+{
+	ivpu_hw_ip_ipc_tx_set(vdev, vpu_addr);
+}
+
+static inline void ivpu_hw_db_set(struct ivpu_device *vdev, u32 db_id)
+{
+	ivpu_hw_ip_db_set(vdev, db_id);
+}
+
+static inline u32 ivpu_hw_ipc_rx_addr_get(struct ivpu_device *vdev)
+{
+	return ivpu_hw_ip_ipc_rx_addr_get(vdev);
+}
+
+static inline u32 ivpu_hw_ipc_rx_count_get(struct ivpu_device *vdev)
+{
+	return ivpu_hw_ip_ipc_rx_count_get(vdev);
+}
+
+#endif /* __IVPU_HW_H__ */

linux-7.2.3/drivers/accel/ivpu/ivpu_hw_37xx_reg.h

@@ -0,0 +1,178 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2020-2023 Intel Corporation
+ */
+
+#ifndef __IVPU_HW_37XX_REG_H__
+#define __IVPU_HW_37XX_REG_H__
+
+#include <linux/bits.h>
+
+#define VPU_37XX_HOST_SS_CPR_CLK_SET					0x00000084u
+#define VPU_37XX_HOST_SS_CPR_CLK_SET_TOP_NOC_MASK			BIT_MASK(1)
+#define VPU_37XX_HOST_SS_CPR_CLK_SET_DSS_MAS_MASK			BIT_MASK(10)
+#define VPU_37XX_HOST_SS_CPR_CLK_SET_MSS_MAS_MASK			BIT_MASK(11)
+
+#define VPU_37XX_HOST_SS_CPR_RST_SET					0x00000094u
+#define VPU_37XX_HOST_SS_CPR_RST_SET_TOP_NOC_MASK			BIT_MASK(1)
+#define VPU_37XX_HOST_SS_CPR_RST_SET_DSS_MAS_MASK			BIT_MASK(10)
+#define VPU_37XX_HOST_SS_CPR_RST_SET_MSS_MAS_MASK			BIT_MASK(11)
+
+#define VPU_37XX_HOST_SS_CPR_RST_CLR					0x00000098u
+#define VPU_37XX_HOST_SS_CPR_RST_CLR_AON_MASK				BIT_MASK(0)
+#define VPU_37XX_HOST_SS_CPR_RST_CLR_TOP_NOC_MASK			BIT_MASK(1)
+#define VPU_37XX_HOST_SS_CPR_RST_CLR_DSS_MAS_MASK			BIT_MASK(10)
+#define VPU_37XX_HOST_SS_CPR_RST_CLR_MSS_MAS_MASK			BIT_MASK(11)
+
+#define VPU_37XX_HOST_SS_HW_VERSION					0x00000108u
+#define VPU_37XX_HOST_SS_HW_VERSION_SOC_REVISION_MASK			GENMASK(7, 0)
+#define VPU_37XX_HOST_SS_HW_VERSION_SOC_NUMBER_MASK			GENMASK(15, 8)
+#define VPU_37XX_HOST_SS_HW_VERSION_VPU_GENERATION_MASK			GENMASK(23, 16)
+
+#define VPU_37XX_HOST_SS_GEN_CTRL					0x00000118u
+#define VPU_37XX_HOST_SS_GEN_CTRL_PS_MASK				GENMASK(31, 29)
+
+#define VPU_37XX_HOST_SS_NOC_QREQN					0x00000154u
+#define VPU_37XX_HOST_SS_NOC_QREQN_TOP_SOCMMIO_MASK			BIT_MASK(0)
+
+#define VPU_37XX_HOST_SS_NOC_QACCEPTN					0x00000158u
+#define VPU_37XX_HOST_SS_NOC_QACCEPTN_TOP_SOCMMIO_MASK			BIT_MASK(0)
+
+#define VPU_37XX_HOST_SS_NOC_QDENY					0x0000015cu
+#define VPU_37XX_HOST_SS_NOC_QDENY_TOP_SOCMMIO_MASK			BIT_MASK(0)
+
+#define VPU_37XX_TOP_NOC_QREQN						0x00000160u
+#define VPU_37XX_TOP_NOC_QREQN_CPU_CTRL_MASK				BIT_MASK(0)
+#define VPU_37XX_TOP_NOC_QREQN_HOSTIF_L2CACHE_MASK			BIT_MASK(1)
+
+#define VPU_37XX_TOP_NOC_QACCEPTN					0x00000164u
+#define VPU_37XX_TOP_NOC_QACCEPTN_CPU_CTRL_MASK				BIT_MASK(0)
+#define VPU_37XX_TOP_NOC_QACCEPTN_HOSTIF_L2CACHE_MASK			BIT_MASK(1)
+
+#define VPU_37XX_TOP_NOC_QDENY						0x00000168u
+#define VPU_37XX_TOP_NOC_QDENY_CPU_CTRL_MASK				BIT_MASK(0)
+#define VPU_37XX_TOP_NOC_QDENY_HOSTIF_L2CACHE_MASK			BIT_MASK(1)
+
+#define VPU_37XX_HOST_SS_FW_SOC_IRQ_EN					0x00000170u
+#define VPU_37XX_HOST_SS_FW_SOC_IRQ_EN_CSS_ROM_CMX_MASK			BIT_MASK(0)
+#define VPU_37XX_HOST_SS_FW_SOC_IRQ_EN_CSS_DBG_MASK			BIT_MASK(1)
+#define VPU_37XX_HOST_SS_FW_SOC_IRQ_EN_CSS_CTRL_MASK			BIT_MASK(2)
+#define VPU_37XX_HOST_SS_FW_SOC_IRQ_EN_DEC400_MASK			BIT_MASK(3)
+#define VPU_37XX_HOST_SS_FW_SOC_IRQ_EN_MSS_NCE_MASK			BIT_MASK(4)
+#define VPU_37XX_HOST_SS_FW_SOC_IRQ_EN_MSS_MBI_MASK			BIT_MASK(5)
+#define VPU_37XX_HOST_SS_FW_SOC_IRQ_EN_MSS_MBI_CMX_MASK			BIT_MASK(6)
+
+#define VPU_37XX_HOST_SS_ICB_STATUS_0					0x00010210u
+#define VPU_37XX_HOST_SS_ICB_STATUS_0_TIMER_0_INT_MASK			BIT_MASK(0)
+#define VPU_37XX_HOST_SS_ICB_STATUS_0_TIMER_1_INT_MASK			BIT_MASK(1)
+#define VPU_37XX_HOST_SS_ICB_STATUS_0_TIMER_2_INT_MASK			BIT_MASK(2)
+#define VPU_37XX_HOST_SS_ICB_STATUS_0_TIMER_3_INT_MASK			BIT_MASK(3)
+#define VPU_37XX_HOST_SS_ICB_STATUS_0_HOST_IPC_FIFO_INT_MASK		BIT_MASK(4)
+#define VPU_37XX_HOST_SS_ICB_STATUS_0_MMU_IRQ_0_INT_MASK		BIT_MASK(5)
+#define VPU_37XX_HOST_SS_ICB_STATUS_0_MMU_IRQ_1_INT_MASK		BIT_MASK(6)
+#define VPU_37XX_HOST_SS_ICB_STATUS_0_MMU_IRQ_2_INT_MASK		BIT_MASK(7)
+#define VPU_37XX_HOST_SS_ICB_STATUS_0_NOC_FIREWALL_INT_MASK		BIT_MASK(8)
+#define VPU_37XX_HOST_SS_ICB_STATUS_0_CPU_INT_REDIRECT_0_INT_MASK	BIT_MASK(30)
+#define VPU_37XX_HOST_SS_ICB_STATUS_0_CPU_INT_REDIRECT_1_INT_MASK	BIT_MASK(31)
+
+#define VPU_37XX_HOST_SS_ICB_STATUS_1					0x00010214u
+#define VPU_37XX_HOST_SS_ICB_STATUS_1_CPU_INT_REDIRECT_2_INT_MASK	BIT_MASK(0)
+#define VPU_37XX_HOST_SS_ICB_STATUS_1_CPU_INT_REDIRECT_3_INT_MASK	BIT_MASK(1)
+#define VPU_37XX_HOST_SS_ICB_STATUS_1_CPU_INT_REDIRECT_4_INT_MASK	BIT_MASK(2)
+
+#define VPU_37XX_HOST_SS_ICB_CLEAR_0					0x00010220u
+#define VPU_37XX_HOST_SS_ICB_CLEAR_1					0x00010224u
+#define VPU_37XX_HOST_SS_ICB_ENABLE_0					0x00010240u
+
+#define VPU_37XX_HOST_SS_TIM_IPC_FIFO_ATM				0x000200f4u
+
+#define VPU_37XX_HOST_SS_TIM_IPC_FIFO_STAT				0x000200fcu
+#define VPU_37XX_HOST_SS_TIM_IPC_FIFO_STAT_READ_POINTER_MASK		GENMASK(7, 0)
+#define VPU_37XX_HOST_SS_TIM_IPC_FIFO_STAT_WRITE_POINTER_MASK		GENMASK(15, 8)
+#define VPU_37XX_HOST_SS_TIM_IPC_FIFO_STAT_FILL_LEVEL_MASK		GENMASK(23, 16)
+#define VPU_37XX_HOST_SS_TIM_IPC_FIFO_STAT_RSVD0_MASK			GENMASK(31, 24)
+
+#define VPU_37XX_HOST_SS_AON_PWR_ISO_EN0				0x00030020u
+#define VPU_37XX_HOST_SS_AON_PWR_ISO_EN0_MSS_CPU_MASK			BIT_MASK(3)
+
+#define VPU_37XX_HOST_SS_AON_PWR_ISLAND_EN0				0x00030024u
+#define VPU_37XX_HOST_SS_AON_PWR_ISLAND_EN0_MSS_CPU_MASK		BIT_MASK(3)
+
+#define VPU_37XX_HOST_SS_AON_PWR_ISLAND_TRICKLE_EN0			0x00030028u
+#define VPU_37XX_HOST_SS_AON_PWR_ISLAND_TRICKLE_EN0_MSS_CPU_MASK	BIT_MASK(3)
+
+#define VPU_37XX_HOST_SS_AON_PWR_ISLAND_STATUS0				0x0003002cu
+#define VPU_37XX_HOST_SS_AON_PWR_ISLAND_STATUS0_MSS_CPU_MASK		BIT_MASK(3)
+
+#define VPU_37XX_HOST_SS_AON_VPU_IDLE_GEN				0x00030200u
+#define VPU_37XX_HOST_SS_AON_VPU_IDLE_GEN_EN_MASK			BIT_MASK(0)
+
+#define VPU_37XX_HOST_SS_AON_DPU_ACTIVE					0x00030204u
+#define VPU_37XX_HOST_SS_AON_DPU_ACTIVE_DPU_ACTIVE_MASK			BIT_MASK(0)
+
+#define VPU_37XX_HOST_SS_LOADING_ADDRESS_LO				0x00041040u
+#define VPU_37XX_HOST_SS_LOADING_ADDRESS_LO_DONE_MASK			BIT_MASK(0)
+#define VPU_37XX_HOST_SS_LOADING_ADDRESS_LO_IOSF_RS_ID_MASK		GENMASK(2, 1)
+#define VPU_37XX_HOST_SS_LOADING_ADDRESS_LO_IMAGE_LOCATION_MASK		GENMASK(31, 3)
+
+#define VPU_37XX_HOST_SS_WORKPOINT_CONFIG_MIRROR			0x00082020u
+#define VPU_37XX_HOST_SS_WORKPOINT_CONFIG_MIRROR_FINAL_PLL_FREQ_MASK	GENMASK(15, 0)
+#define VPU_37XX_HOST_SS_WORKPOINT_CONFIG_MIRROR_CONFIG_ID_MASK		GENMASK(31, 16)
+
+#define VPU_37XX_HOST_IF_TCU_PTW_OVERRIDES				0x00360000u
+#define VPU_37XX_HOST_IF_TCU_PTW_OVERRIDES_CACHE_OVERRIDE_EN_MASK	BIT_MASK(0)
+#define VPU_37XX_HOST_IF_TCU_PTW_OVERRIDES_AWCACHE_OVERRIDE_MASK	BIT_MASK(1)
+#define VPU_37XX_HOST_IF_TCU_PTW_OVERRIDES_ARCACHE_OVERRIDE_MASK	BIT_MASK(2)
+#define VPU_37XX_HOST_IF_TCU_PTW_OVERRIDES_NOSNOOP_OVERRIDE_EN_MASK	BIT_MASK(3)
+#define VPU_37XX_HOST_IF_TCU_PTW_OVERRIDES_AW_NOSNOOP_OVERRIDE_MASK	BIT_MASK(4)
+#define VPU_37XX_HOST_IF_TCU_PTW_OVERRIDES_AR_NOSNOOP_OVERRIDE_MASK	BIT_MASK(5)
+#define VPU_37XX_HOST_IF_TCU_PTW_OVERRIDES_PTW_AW_CONTEXT_FLAG_MASK	GENMASK(10, 6)
+#define VPU_37XX_HOST_IF_TCU_PTW_OVERRIDES_PTW_AR_CONTEXT_FLAG_MASK	GENMASK(15, 11)
+
+#define VPU_37XX_HOST_IF_TBU_MMUSSIDV					0x00360004u
+#define VPU_37XX_HOST_IF_TBU_MMUSSIDV_TBU0_AWMMUSSIDV_MASK		BIT_MASK(0)
+#define VPU_37XX_HOST_IF_TBU_MMUSSIDV_TBU0_ARMMUSSIDV_MASK		BIT_MASK(1)
+#define VPU_37XX_HOST_IF_TBU_MMUSSIDV_TBU1_AWMMUSSIDV_MASK		BIT_MASK(2)
+#define VPU_37XX_HOST_IF_TBU_MMUSSIDV_TBU1_ARMMUSSIDV_MASK		BIT_MASK(3)
+#define VPU_37XX_HOST_IF_TBU_MMUSSIDV_TBU2_AWMMUSSIDV_MASK		BIT_MASK(4)
+#define VPU_37XX_HOST_IF_TBU_MMUSSIDV_TBU2_ARMMUSSIDV_MASK		BIT_MASK(5)
+#define VPU_37XX_HOST_IF_TBU_MMUSSIDV_TBU3_AWMMUSSIDV_MASK		BIT_MASK(6)
+#define VPU_37XX_HOST_IF_TBU_MMUSSIDV_TBU3_ARMMUSSIDV_MASK		BIT_MASK(7)
+#define VPU_37XX_HOST_IF_TBU_MMUSSIDV_TBU4_AWMMUSSIDV_MASK		BIT_MASK(8)
+#define VPU_37XX_HOST_IF_TBU_MMUSSIDV_TBU4_ARMMUSSIDV_MASK		BIT_MASK(9)
+
+#define VPU_37XX_CPU_SS_DSU_LEON_RT_BASE				0x04000000u
+#define VPU_37XX_CPU_SS_DSU_LEON_RT_DSU_CTRL				0x04000000u
+#define VPU_37XX_CPU_SS_DSU_LEON_RT_PC_REG				0x04400010u
+#define VPU_37XX_CPU_SS_DSU_LEON_RT_NPC_REG				0x04400014u
+#define VPU_37XX_CPU_SS_DSU_LEON_RT_DSU_TRAP_REG			0x04400020u
+
+#define VPU_37XX_CPU_SS_MSSCPU_CPR_CLK_SET				0x06010004u
+#define VPU_37XX_CPU_SS_MSSCPU_CPR_CLK_SET_CPU_DSU_MASK			BIT_MASK(1)
+
+#define VPU_37XX_CPU_SS_MSSCPU_CPR_RST_CLR				0x06010018u
+#define VPU_37XX_CPU_SS_MSSCPU_CPR_RST_CLR_CPU_DSU_MASK			BIT_MASK(1)
+
+#define VPU_37XX_CPU_SS_MSSCPU_CPR_LEON_RT_VEC				0x06010040u
+#define VPU_37XX_CPU_SS_MSSCPU_CPR_LEON_RT_VEC_IRQI_RSTRUN0_MASK	BIT_MASK(0)
+#define VPU_37XX_CPU_SS_MSSCPU_CPR_LEON_RT_VEC_IRQI_RESUME0_MASK	BIT_MASK(1)
+#define VPU_37XX_CPU_SS_MSSCPU_CPR_LEON_RT_VEC_IRQI_RSTRUN1_MASK	BIT_MASK(2)
+#define VPU_37XX_CPU_SS_MSSCPU_CPR_LEON_RT_VEC_IRQI_RESUME1_MASK	BIT_MASK(3)
+#define VPU_37XX_CPU_SS_MSSCPU_CPR_LEON_RT_VEC_IRQI_RSTVEC_MASK		GENMASK(31, 4)
+
+#define VPU_37XX_CPU_SS_TIM_WATCHDOG					0x0602009cu
+#define VPU_37XX_CPU_SS_TIM_WDOG_EN					0x060200a4u
+#define VPU_37XX_CPU_SS_TIM_SAFE					0x060200a8u
+#define VPU_37XX_CPU_SS_TIM_IPC_FIFO					0x060200f0u
+
+#define VPU_37XX_CPU_SS_TIM_GEN_CONFIG					0x06021008u
+#define VPU_37XX_CPU_SS_TIM_GEN_CONFIG_WDOG_TO_INT_CLR_MASK		BIT_MASK(9)
+
+#define VPU_37XX_CPU_SS_TIM_PERF_FREE_CNT				0x06029000u
+
+#define VPU_37XX_CPU_SS_DOORBELL_0					0x06300000u
+#define VPU_37XX_CPU_SS_DOORBELL_0_SET_MASK				BIT_MASK(0)
+
+#define VPU_37XX_CPU_SS_DOORBELL_1					0x06301000u
+
+#endif /* __IVPU_HW_37XX_REG_H__ */

linux-7.2.3/drivers/accel/ivpu/ivpu_hw_40xx_reg.h

@@ -0,0 +1,195 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2020-2023 Intel Corporation
+ */
+
+#ifndef __IVPU_HW_40XX_REG_H__
+#define __IVPU_HW_40XX_REG_H__
+
+#include <linux/bits.h>
+
+#define VPU_40XX_HOST_SS_CPR_CLK_EN					0x00000080u
+#define VPU_40XX_HOST_SS_CPR_CLK_EN_TOP_NOC_MASK			BIT_MASK(1)
+#define VPU_40XX_HOST_SS_CPR_CLK_EN_DSS_MAS_MASK			BIT_MASK(10)
+#define VPU_40XX_HOST_SS_CPR_CLK_EN_CSS_MAS_MASK			BIT_MASK(11)
+
+#define VPU_40XX_HOST_SS_CPR_CLK_SET					0x00000084u
+#define VPU_40XX_HOST_SS_CPR_CLK_SET_TOP_NOC_MASK			BIT_MASK(1)
+#define VPU_40XX_HOST_SS_CPR_CLK_SET_DSS_MAS_MASK			BIT_MASK(10)
+#define VPU_40XX_HOST_SS_CPR_CLK_SET_MSS_MAS_MASK			BIT_MASK(11)
+
+#define VPU_40XX_HOST_SS_CPR_RST_EN					0x00000090u
+#define VPU_40XX_HOST_SS_CPR_RST_EN_TOP_NOC_MASK			BIT_MASK(1)
+#define VPU_40XX_HOST_SS_CPR_RST_EN_DSS_MAS_MASK			BIT_MASK(10)
+#define VPU_40XX_HOST_SS_CPR_RST_EN_CSS_MAS_MASK			BIT_MASK(11)
+
+#define VPU_40XX_HOST_SS_CPR_RST_SET					0x00000094u
+#define VPU_40XX_HOST_SS_CPR_RST_SET_TOP_NOC_MASK			BIT_MASK(1)
+#define VPU_40XX_HOST_SS_CPR_RST_SET_DSS_MAS_MASK			BIT_MASK(10)
+#define VPU_40XX_HOST_SS_CPR_RST_SET_MSS_MAS_MASK			BIT_MASK(11)
+
+#define VPU_40XX_HOST_SS_CPR_RST_CLR					0x00000098u
+#define VPU_40XX_HOST_SS_CPR_RST_CLR_TOP_NOC_MASK			BIT_MASK(1)
+#define VPU_40XX_HOST_SS_CPR_RST_CLR_DSS_MAS_MASK			BIT_MASK(10)
+#define VPU_40XX_HOST_SS_CPR_RST_CLR_MSS_MAS_MASK			BIT_MASK(11)
+
+#define VPU_40XX_HOST_SS_HW_VERSION					0x00000108u
+#define VPU_40XX_HOST_SS_HW_VERSION_SOC_REVISION_MASK			GENMASK(7, 0)
+#define VPU_40XX_HOST_SS_HW_VERSION_SOC_NUMBER_MASK			GENMASK(15, 8)
+#define VPU_40XX_HOST_SS_HW_VERSION_VPU_GENERATION_MASK			GENMASK(23, 16)
+
+#define VPU_40XX_HOST_SS_SW_VERSION					0x0000010cu
+
+#define VPU_40XX_HOST_SS_GEN_CTRL					0x00000118u
+#define VPU_40XX_HOST_SS_GEN_CTRL_PS_MASK				GENMASK(31, 29)
+
+#define VPU_40XX_HOST_SS_NOC_QREQN					0x00000154u
+#define VPU_40XX_HOST_SS_NOC_QREQN_TOP_SOCMMIO_MASK			BIT_MASK(0)
+
+#define VPU_40XX_HOST_SS_NOC_QACCEPTN					0x00000158u
+#define VPU_40XX_HOST_SS_NOC_QACCEPTN_TOP_SOCMMIO_MASK			BIT_MASK(0)
+
+#define VPU_40XX_HOST_SS_NOC_QDENY					0x0000015cu
+#define VPU_40XX_HOST_SS_NOC_QDENY_TOP_SOCMMIO_MASK			BIT_MASK(0)
+
+#define VPU_40XX_TOP_NOC_QREQN						0x00000160u
+#define VPU_40XX_TOP_NOC_QREQN_CPU_CTRL_MASK				BIT_MASK(0)
+#define VPU_40XX_TOP_NOC_QREQN_HOSTIF_L2CACHE_MASK			BIT_MASK(2)
+
+#define VPU_40XX_TOP_NOC_QACCEPTN					0x00000164u
+#define VPU_40XX_TOP_NOC_QACCEPTN_CPU_CTRL_MASK				BIT_MASK(0)
+#define VPU_40XX_TOP_NOC_QACCEPTN_HOSTIF_L2CACHE_MASK			BIT_MASK(2)
+
+#define VPU_40XX_TOP_NOC_QDENY						0x00000168u
+#define VPU_40XX_TOP_NOC_QDENY_CPU_CTRL_MASK				BIT_MASK(0)
+#define VPU_40XX_TOP_NOC_QDENY_HOSTIF_L2CACHE_MASK			BIT_MASK(2)
+
+#define VPU_40XX_HOST_SS_FW_SOC_IRQ_EN					0x00000170u
+#define VPU_40XX_HOST_SS_FW_SOC_IRQ_EN_CSS_ROM_CMX_MASK			BIT_MASK(0)
+#define VPU_40XX_HOST_SS_FW_SOC_IRQ_EN_CSS_DBG_MASK			BIT_MASK(1)
+#define VPU_40XX_HOST_SS_FW_SOC_IRQ_EN_CSS_CTRL_MASK			BIT_MASK(2)
+#define VPU_40XX_HOST_SS_FW_SOC_IRQ_EN_DEC400_MASK			BIT_MASK(3)
+#define VPU_40XX_HOST_SS_FW_SOC_IRQ_EN_MSS_NCE_MASK			BIT_MASK(4)
+#define VPU_40XX_HOST_SS_FW_SOC_IRQ_EN_MSS_MBI_MASK			BIT_MASK(5)
+#define VPU_40XX_HOST_SS_FW_SOC_IRQ_EN_MSS_MBI_CMX_MASK			BIT_MASK(6)
+
+#define VPU_40XX_HOST_SS_ICB_STATUS_0					0x00010210u
+#define VPU_40XX_HOST_SS_ICB_STATUS_0_TIMER_0_INT_MASK			BIT_MASK(0)
+#define VPU_40XX_HOST_SS_ICB_STATUS_0_TIMER_1_INT_MASK			BIT_MASK(1)
+#define VPU_40XX_HOST_SS_ICB_STATUS_0_TIMER_2_INT_MASK			BIT_MASK(2)
+#define VPU_40XX_HOST_SS_ICB_STATUS_0_TIMER_3_INT_MASK			BIT_MASK(3)
+#define VPU_40XX_HOST_SS_ICB_STATUS_0_HOST_IPC_FIFO_INT_MASK		BIT_MASK(4)
+#define VPU_40XX_HOST_SS_ICB_STATUS_0_MMU_IRQ_0_INT_MASK		BIT_MASK(5)
+#define VPU_40XX_HOST_SS_ICB_STATUS_0_MMU_IRQ_1_INT_MASK		BIT_MASK(6)
+#define VPU_40XX_HOST_SS_ICB_STATUS_0_MMU_IRQ_2_INT_MASK		BIT_MASK(7)
+#define VPU_40XX_HOST_SS_ICB_STATUS_0_NOC_FIREWALL_INT_MASK		BIT_MASK(8)
+#define VPU_40XX_HOST_SS_ICB_STATUS_0_CPU_INT_REDIRECT_0_INT_MASK	BIT_MASK(30)
+#define VPU_40XX_HOST_SS_ICB_STATUS_0_CPU_INT_REDIRECT_1_INT_MASK	BIT_MASK(31)
+
+#define VPU_40XX_HOST_SS_ICB_STATUS_1					0x00010214u
+#define VPU_40XX_HOST_SS_ICB_STATUS_1_CPU_INT_REDIRECT_2_INT_MASK	BIT_MASK(0)
+#define VPU_40XX_HOST_SS_ICB_STATUS_1_CPU_INT_REDIRECT_3_INT_MASK	BIT_MASK(1)
+#define VPU_40XX_HOST_SS_ICB_STATUS_1_CPU_INT_REDIRECT_4_INT_MASK	BIT_MASK(2)
+
+#define VPU_40XX_HOST_SS_ICB_CLEAR_0					0x00010220u
+#define VPU_40XX_HOST_SS_ICB_CLEAR_1					0x00010224u
+#define VPU_40XX_HOST_SS_ICB_ENABLE_0					0x00010240u
+#define VPU_40XX_HOST_SS_ICB_ENABLE_1					0x00010244u
+
+#define VPU_40XX_HOST_SS_TIM_IPC_FIFO_ATM				0x000200f4u
+
+#define VPU_40XX_HOST_SS_TIM_IPC_FIFO_STAT				0x000200fcu
+#define VPU_40XX_HOST_SS_TIM_IPC_FIFO_STAT_FILL_LEVEL_MASK		GENMASK(23, 16)
+
+#define VPU_40XX_HOST_SS_AON_PWR_ISO_EN0				0x00030020u
+#define VPU_40XX_HOST_SS_AON_PWR_ISO_EN0_CSS_CPU_MASK			BIT_MASK(3)
+
+#define VPU_40XX_HOST_SS_AON_PWR_ISLAND_EN0				0x00030024u
+#define VPU_40XX_HOST_SS_AON_PWR_ISLAND_EN0_CSS_CPU_MASK		BIT_MASK(3)
+
+#define VPU_40XX_HOST_SS_AON_PWR_ISLAND_TRICKLE_EN0			0x00030028u
+#define VPU_40XX_HOST_SS_AON_PWR_ISLAND_TRICKLE_EN0_CSS_CPU_MASK	BIT_MASK(3)
+
+#define VPU_40XX_HOST_SS_AON_PWR_ISLAND_STATUS0				0x0003002cu
+#define VPU_40XX_HOST_SS_AON_PWR_ISLAND_STATUS0_CSS_CPU_MASK		BIT_MASK(3)
+
+#define VPU_50XX_HOST_SS_AON_PWR_ISLAND_EN_POST_DLY			0x00030068u
+#define VPU_50XX_HOST_SS_AON_PWR_ISLAND_EN_POST_DLY_POST_DLY_MASK	GENMASK(7, 0)
+#define VPU_50XX_HOST_SS_AON_PWR_ISLAND_EN_POST_DLY_POST1_DLY_MASK	GENMASK(15, 8)
+#define VPU_50XX_HOST_SS_AON_PWR_ISLAND_EN_POST_DLY_POST2_DLY_MASK	GENMASK(23, 16)
+
+#define VPU_50XX_HOST_SS_AON_PWR_ISLAND_STATUS_DLY			0x0003006cu
+#define VPU_50XX_HOST_SS_AON_PWR_ISLAND_STATUS_DLY_STATUS_DLY_MASK	GENMASK(7, 0)
+
+#define VPU_40XX_HOST_SS_AON_IDLE_GEN					0x00030200u
+#define VPU_40XX_HOST_SS_AON_IDLE_GEN_EN_MASK				BIT_MASK(0)
+#define VPU_40XX_HOST_SS_AON_IDLE_GEN_HW_PG_EN_MASK			BIT_MASK(1)
+
+#define VPU_40XX_HOST_SS_AON_DPU_ACTIVE					0x00030204u
+#define VPU_40XX_HOST_SS_AON_DPU_ACTIVE_DPU_ACTIVE_MASK			BIT_MASK(0)
+
+#define VPU_50XX_HOST_SS_AON_FABRIC_REQ_OVERRIDE			0x00030210u
+#define VPU_50XX_HOST_SS_AON_FABRIC_REQ_OVERRIDE_REQ_OVERRIDE_MASK      BIT_MASK(0)
+
+#define VPU_40XX_HOST_SS_VERIFICATION_ADDRESS_LO			0x00040040u
+#define VPU_40XX_HOST_SS_VERIFICATION_ADDRESS_LO_DONE_MASK		BIT_MASK(0)
+#define VPU_40XX_HOST_SS_VERIFICATION_ADDRESS_LO_IOSF_RS_ID_MASK	GENMASK(2, 1)
+#define VPU_40XX_HOST_SS_VERIFICATION_ADDRESS_LO_IMAGE_LOCATION_MASK	GENMASK(31, 3)
+
+#define VPU_40XX_HOST_SS_WORKPOINT_CONFIG_MIRROR			0x00082020u
+#define VPU_40XX_HOST_SS_WORKPOINT_CONFIG_MIRROR_FINAL_PLL_FREQ_MASK	GENMASK(15, 0)
+#define VPU_40XX_HOST_SS_WORKPOINT_CONFIG_MIRROR_CONFIG_ID_MASK		GENMASK(31, 16)
+
+#define VPU_40XX_HOST_IF_TCU_PTW_OVERRIDES				0x00360000u
+#define VPU_40XX_HOST_IF_TCU_PTW_OVERRIDES_CACHE_OVERRIDE_EN_MASK	BIT_MASK(0)
+#define VPU_40XX_HOST_IF_TCU_PTW_OVERRIDES_AWCACHE_OVERRIDE_MASK	BIT_MASK(1)
+#define VPU_40XX_HOST_IF_TCU_PTW_OVERRIDES_ARCACHE_OVERRIDE_MASK	BIT_MASK(2)
+#define VPU_40XX_HOST_IF_TCU_PTW_OVERRIDES_SNOOP_OVERRIDE_EN_MASK	BIT_MASK(3)
+#define VPU_40XX_HOST_IF_TCU_PTW_OVERRIDES_AW_SNOOP_OVERRIDE_MASK	BIT_MASK(4)
+#define VPU_40XX_HOST_IF_TCU_PTW_OVERRIDES_AR_SNOOP_OVERRIDE_MASK	BIT_MASK(5)
+#define VPU_40XX_HOST_IF_TCU_PTW_OVERRIDES_PTW_AW_CONTEXT_FLAG_MASK	GENMASK(10, 6)
+#define VPU_40XX_HOST_IF_TCU_PTW_OVERRIDES_PTW_AR_CONTEXT_FLAG_MASK	GENMASK(15, 11)
+
+#define VPU_40XX_HOST_IF_TBU_MMUSSIDV					0x00360004u
+#define VPU_40XX_HOST_IF_TBU_MMUSSIDV_TBU0_AWMMUSSIDV_MASK		BIT_MASK(0)
+#define VPU_40XX_HOST_IF_TBU_MMUSSIDV_TBU0_ARMMUSSIDV_MASK		BIT_MASK(1)
+#define VPU_40XX_HOST_IF_TBU_MMUSSIDV_TBU1_AWMMUSSIDV_MASK		BIT_MASK(2)
+#define VPU_40XX_HOST_IF_TBU_MMUSSIDV_TBU1_ARMMUSSIDV_MASK		BIT_MASK(3)
+#define VPU_40XX_HOST_IF_TBU_MMUSSIDV_TBU2_AWMMUSSIDV_MASK		BIT_MASK(4)
+#define VPU_40XX_HOST_IF_TBU_MMUSSIDV_TBU2_ARMMUSSIDV_MASK		BIT_MASK(5)
+#define VPU_40XX_HOST_IF_TBU_MMUSSIDV_TBU3_AWMMUSSIDV_MASK		BIT_MASK(6)
+#define VPU_40XX_HOST_IF_TBU_MMUSSIDV_TBU3_ARMMUSSIDV_MASK		BIT_MASK(7)
+#define VPU_40XX_HOST_IF_TBU_MMUSSIDV_TBU4_AWMMUSSIDV_MASK		BIT_MASK(8)
+#define VPU_40XX_HOST_IF_TBU_MMUSSIDV_TBU4_ARMMUSSIDV_MASK		BIT_MASK(9)
+
+#define VPU_40XX_CPU_SS_DSU_LEON_RT_BASE				0x04000000u
+#define VPU_40XX_CPU_SS_DSU_LEON_RT_DSU_CTRL				0x04000000u
+#define VPU_40XX_CPU_SS_DSU_LEON_RT_PC_REG				0x04400010u
+#define VPU_40XX_CPU_SS_DSU_LEON_RT_NPC_REG				0x04400014u
+#define VPU_40XX_CPU_SS_DSU_LEON_RT_DSU_TRAP_REG			0x04400020u
+
+#define VPU_40XX_CPU_SS_TIM_WATCHDOG					0x0102009cu
+#define VPU_40XX_CPU_SS_TIM_WDOG_EN					0x010200a4u
+#define VPU_40XX_CPU_SS_TIM_SAFE					0x010200a8u
+
+#define VPU_40XX_CPU_SS_TIM_GEN_CONFIG					0x01021008u
+#define VPU_40XX_CPU_SS_TIM_GEN_CONFIG_WDOG_TO_INT_CLR_MASK		BIT_MASK(9)
+
+#define VPU_40XX_CPU_SS_CPR_NOC_QREQN					0x01010030u
+#define VPU_40XX_CPU_SS_CPR_NOC_QREQN_TOP_MMIO_MASK			BIT_MASK(0)
+
+#define VPU_40XX_CPU_SS_CPR_NOC_QACCEPTN				0x01010034u
+#define VPU_40XX_CPU_SS_CPR_NOC_QACCEPTN_TOP_MMIO_MASK			BIT_MASK(0)
+
+#define VPU_40XX_CPU_SS_CPR_NOC_QDENY					0x01010038u
+#define VPU_40XX_CPU_SS_CPR_NOC_QDENY_TOP_MMIO_MASK			BIT_MASK(0)
+
+#define VPU_40XX_CPU_SS_TIM_IPC_FIFO					0x010200f0u
+#define VPU_40XX_CPU_SS_TIM_PERF_EXT_FREE_CNT				0x01029008u
+
+#define VPU_40XX_CPU_SS_DOORBELL_0					0x01300000u
+#define VPU_40XX_CPU_SS_DOORBELL_0_SET_MASK				BIT_MASK(0)
+
+#define VPU_40XX_CPU_SS_DOORBELL_1					0x01301000u
+
+#endif /* __IVPU_HW_40XX_REG_H__ */

linux-7.2.3/drivers/accel/ivpu/ivpu_hw_btrs.c

@@ -0,0 +1,971 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2020-2026 Intel Corporation
+ */
+
+#include <linux/units.h>
+
+#include "ivpu_drv.h"
+#include "ivpu_hw.h"
+#include "ivpu_hw_btrs.h"
+#include "ivpu_hw_btrs_lnl_reg.h"
+#include "ivpu_hw_btrs_mtl_reg.h"
+#include "ivpu_hw_reg_io.h"
+#include "ivpu_jsm_msg.h"
+#include "ivpu_pm.h"
+
+#define BTRS_MTL_IRQ_MASK ((REG_FLD(VPU_HW_BTRS_MTL_INTERRUPT_STAT, ATS_ERR)) | \
+			   (REG_FLD(VPU_HW_BTRS_MTL_INTERRUPT_STAT, UFI_ERR)))
+
+#define BTRS_LNL_IRQ_MASK ((REG_FLD(VPU_HW_BTRS_LNL_INTERRUPT_STAT, ATS_ERR)) | \
+			   (REG_FLD(VPU_HW_BTRS_LNL_INTERRUPT_STAT, CFI0_ERR)) | \
+			   (REG_FLD(VPU_HW_BTRS_LNL_INTERRUPT_STAT, CFI1_ERR)) | \
+			   (REG_FLD(VPU_HW_BTRS_LNL_INTERRUPT_STAT, IMR0_ERR)) | \
+			   (REG_FLD(VPU_HW_BTRS_LNL_INTERRUPT_STAT, IMR1_ERR)) | \
+			   (REG_FLD(VPU_HW_BTRS_LNL_INTERRUPT_STAT, SURV_ERR)))
+
+#define BTRS_MTL_ALL_IRQ_MASK (BTRS_MTL_IRQ_MASK | (REG_FLD(VPU_HW_BTRS_MTL_INTERRUPT_STAT, \
+			       FREQ_CHANGE)))
+
+#define BTRS_IRQ_DISABLE_MASK ((u32)-1)
+
+#define BTRS_LNL_ALL_IRQ_MASK ((u32)-1)
+
+
+#define PLL_CDYN_DEFAULT               0x80
+#define PLL_EPP_DEFAULT                0x80
+#define PLL_REF_CLK_FREQ_MHZ           50
+
+#define PLL_TIMEOUT_US		       (1500 * USEC_PER_MSEC)
+#define IDLE_TIMEOUT_US		       (5 * USEC_PER_MSEC)
+#define TIMEOUT_US                     (150 * USEC_PER_MSEC)
+
+/* Work point configuration values */
+#define WP_CONFIG(tile, ratio)         (((tile) << 8) | (ratio))
+#define MTL_CONFIG_1_TILE              0x01
+#define MTL_CONFIG_2_TILE              0x02
+#define MTL_PLL_RATIO_5_3              0x01
+#define MTL_PLL_RATIO_4_3              0x02
+#define BTRS_MTL_TILE_FUSE_ENABLE_BOTH 0x0
+#define BTRS_MTL_TILE_SKU_BOTH         0x3630
+
+#define BTRS_LNL_TILE_MAX_NUM          6
+#define BTRS_LNL_TILE_MAX_MASK         0x3f
+
+#define WEIGHTS_DEFAULT                0xf711f711u
+#define WEIGHTS_ATS_DEFAULT            0x0000f711u
+
+#define DCT_REQ                        0x2
+#define DCT_ENABLE                     0x1
+#define DCT_DISABLE                    0x0
+
+int ivpu_hw_btrs_irqs_clear_with_0_mtl(struct ivpu_device *vdev)
+{
+	REGB_WR32(VPU_HW_BTRS_MTL_INTERRUPT_STAT, BTRS_MTL_ALL_IRQ_MASK);
+	if (REGB_RD32(VPU_HW_BTRS_MTL_INTERRUPT_STAT) == BTRS_MTL_ALL_IRQ_MASK) {
+		/* Writing 1s does not clear the interrupt status register */
+		REGB_WR32(VPU_HW_BTRS_MTL_INTERRUPT_STAT, 0x0);
+		return true;
+	}
+
+	return false;
+}
+
+static void freq_ratios_init_mtl(struct ivpu_device *vdev)
+{
+	struct ivpu_hw_info *hw = vdev->hw;
+	u32 fmin_fuse, fmax_fuse;
+
+	fmin_fuse = REGB_RD32(VPU_HW_BTRS_MTL_FMIN_FUSE);
+	hw->pll.min_ratio = REG_GET_FLD(VPU_HW_BTRS_MTL_FMIN_FUSE, MIN_RATIO, fmin_fuse);
+	hw->pll.pn_ratio = REG_GET_FLD(VPU_HW_BTRS_MTL_FMIN_FUSE, PN_RATIO, fmin_fuse);
+
+	fmax_fuse = REGB_RD32(VPU_HW_BTRS_MTL_FMAX_FUSE);
+	hw->pll.max_ratio = REG_GET_FLD(VPU_HW_BTRS_MTL_FMAX_FUSE, MAX_RATIO, fmax_fuse);
+}
+
+static void freq_ratios_init_lnl(struct ivpu_device *vdev)
+{
+	struct ivpu_hw_info *hw = vdev->hw;
+	u32 fmin_fuse, fmax_fuse;
+
+	fmin_fuse = REGB_RD32(VPU_HW_BTRS_LNL_FMIN_FUSE);
+	hw->pll.min_ratio = REG_GET_FLD(VPU_HW_BTRS_LNL_FMIN_FUSE, MIN_RATIO, fmin_fuse);
+	hw->pll.pn_ratio = REG_GET_FLD(VPU_HW_BTRS_LNL_FMIN_FUSE, PN_RATIO, fmin_fuse);
+
+	fmax_fuse = REGB_RD32(VPU_HW_BTRS_LNL_FMAX_FUSE);
+	hw->pll.max_ratio = REG_GET_FLD(VPU_HW_BTRS_LNL_FMAX_FUSE, MAX_RATIO, fmax_fuse);
+}
+
+void ivpu_hw_btrs_freq_ratios_init(struct ivpu_device *vdev)
+{
+	struct ivpu_hw_info *hw = vdev->hw;
+
+	if (ivpu_hw_btrs_gen(vdev) == IVPU_HW_BTRS_MTL)
+		freq_ratios_init_mtl(vdev);
+	else
+		freq_ratios_init_lnl(vdev);
+
+	hw->pll.min_ratio = clamp_t(u8, ivpu_pll_min_ratio, hw->pll.min_ratio, hw->pll.max_ratio);
+	hw->pll.max_ratio = clamp_t(u8, ivpu_pll_max_ratio, hw->pll.min_ratio, hw->pll.max_ratio);
+	hw->pll.pn_ratio = clamp_t(u8, hw->pll.pn_ratio, hw->pll.min_ratio, hw->pll.max_ratio);
+	hw->pll.cfg_max_ratio = hw->pll.max_ratio;
+	hw->pll.cfg_min_ratio = hw->pll.min_ratio;
+}
+
+static bool tile_disable_check(u32 config)
+{
+	/* Allowed values: 0 or one bit from range 0-5 (6 tiles) */
+	if (config == 0)
+		return true;
+
+	if (config > BIT(BTRS_LNL_TILE_MAX_NUM - 1))
+		return false;
+
+	if ((config & (config - 1)) == 0)
+		return true;
+
+	return false;
+}
+
+static int read_tile_config_fuse(struct ivpu_device *vdev, u32 *tile_fuse_config)
+{
+	u32 fuse;
+	u32 config;
+
+	fuse = REGB_RD32(VPU_HW_BTRS_LNL_TILE_FUSE);
+	if (!REG_TEST_FLD(VPU_HW_BTRS_LNL_TILE_FUSE, VALID, fuse)) {
+		ivpu_err(vdev, "Fuse: invalid (0x%x)\n", fuse);
+		return -EIO;
+	}
+
+	config = REG_GET_FLD(VPU_HW_BTRS_LNL_TILE_FUSE, CONFIG, fuse);
+	if (!tile_disable_check(config))
+		ivpu_warn(vdev, "More than 1 tile disabled, tile fuse config mask: 0x%x\n", config);
+
+	ivpu_dbg(vdev, MISC, "Tile disable config mask: 0x%x\n", config);
+
+	*tile_fuse_config = config;
+	return 0;
+}
+
+static int info_init_mtl(struct ivpu_device *vdev)
+{
+	struct ivpu_hw_info *hw = vdev->hw;
+
+	hw->tile_fuse = BTRS_MTL_TILE_FUSE_ENABLE_BOTH;
+	hw->sku = BTRS_MTL_TILE_SKU_BOTH;
+	hw->config = WP_CONFIG(MTL_CONFIG_2_TILE, MTL_PLL_RATIO_4_3);
+
+	return 0;
+}
+
+static int info_init_lnl(struct ivpu_device *vdev)
+{
+	struct ivpu_hw_info *hw = vdev->hw;
+	u32 tile_fuse_config;
+	int ret;
+
+	ret = read_tile_config_fuse(vdev, &tile_fuse_config);
+	if (ret)
+		return ret;
+
+	hw->tile_fuse = tile_fuse_config;
+	hw->pll.profiling_freq = PLL_PROFILING_FREQ_DEFAULT;
+
+	return 0;
+}
+
+int ivpu_hw_btrs_info_init(struct ivpu_device *vdev)
+{
+	if (ivpu_hw_btrs_gen(vdev) == IVPU_HW_BTRS_MTL)
+		return info_init_mtl(vdev);
+	else
+		return info_init_lnl(vdev);
+}
+
+static int wp_request_sync(struct ivpu_device *vdev)
+{
+	if (ivpu_hw_btrs_gen(vdev) == IVPU_HW_BTRS_MTL)
+		return REGB_POLL_FLD(VPU_HW_BTRS_MTL_WP_REQ_CMD, SEND, 0, PLL_TIMEOUT_US);
+	else
+		return REGB_POLL_FLD(VPU_HW_BTRS_LNL_WP_REQ_CMD, SEND, 0, PLL_TIMEOUT_US);
+}
+
+static int wait_for_status_ready(struct ivpu_device *vdev, bool enable)
+{
+	u32 exp_val = enable ? 0x1 : 0x0;
+
+	if (IVPU_WA(punit_disabled))
+		return 0;
+
+	if (ivpu_hw_btrs_gen(vdev) == IVPU_HW_BTRS_MTL)
+		return REGB_POLL_FLD(VPU_HW_BTRS_MTL_VPU_STATUS, READY, exp_val, PLL_TIMEOUT_US);
+	else
+		return REGB_POLL_FLD(VPU_HW_BTRS_LNL_VPU_STATUS, READY, exp_val, PLL_TIMEOUT_US);
+}
+
+struct wp_request {
+	u16 min;
+	u16 max;
+	u16 target;
+	u16 cfg;
+	u16 epp;
+	u16 cdyn;
+};
+
+static void wp_request_mtl(struct ivpu_device *vdev, struct wp_request *wp)
+{
+	u32 val;
+
+	val = REGB_RD32(VPU_HW_BTRS_MTL_WP_REQ_PAYLOAD0);
+	val = REG_SET_FLD_NUM(VPU_HW_BTRS_MTL_WP_REQ_PAYLOAD0, MIN_RATIO, wp->min, val);
+	val = REG_SET_FLD_NUM(VPU_HW_BTRS_MTL_WP_REQ_PAYLOAD0, MAX_RATIO, wp->max, val);
+	REGB_WR32(VPU_HW_BTRS_MTL_WP_REQ_PAYLOAD0, val);
+
+	val = REGB_RD32(VPU_HW_BTRS_MTL_WP_REQ_PAYLOAD1);
+	val = REG_SET_FLD_NUM(VPU_HW_BTRS_MTL_WP_REQ_PAYLOAD1, TARGET_RATIO, wp->target, val);
+	val = REG_SET_FLD_NUM(VPU_HW_BTRS_MTL_WP_REQ_PAYLOAD1, EPP, PLL_EPP_DEFAULT, val);
+	REGB_WR32(VPU_HW_BTRS_MTL_WP_REQ_PAYLOAD1, val);
+
+	val = REGB_RD32(VPU_HW_BTRS_MTL_WP_REQ_PAYLOAD2);
+	val = REG_SET_FLD_NUM(VPU_HW_BTRS_MTL_WP_REQ_PAYLOAD2, CONFIG, wp->cfg, val);
+	REGB_WR32(VPU_HW_BTRS_MTL_WP_REQ_PAYLOAD2, val);
+
+	val = REGB_RD32(VPU_HW_BTRS_MTL_WP_REQ_CMD);
+	val = REG_SET_FLD(VPU_HW_BTRS_MTL_WP_REQ_CMD, SEND, val);
+	REGB_WR32(VPU_HW_BTRS_MTL_WP_REQ_CMD, val);
+}
+
+static void wp_request_lnl(struct ivpu_device *vdev, struct wp_request *wp)
+{
+	u32 val;
+
+	val = REGB_RD32(VPU_HW_BTRS_LNL_WP_REQ_PAYLOAD0);
+	val = REG_SET_FLD_NUM(VPU_HW_BTRS_LNL_WP_REQ_PAYLOAD0, MIN_RATIO, wp->min, val);
+	val = REG_SET_FLD_NUM(VPU_HW_BTRS_LNL_WP_REQ_PAYLOAD0, MAX_RATIO, wp->max, val);
+	REGB_WR32(VPU_HW_BTRS_LNL_WP_REQ_PAYLOAD0, val);
+
+	val = REGB_RD32(VPU_HW_BTRS_LNL_WP_REQ_PAYLOAD1);
+	val = REG_SET_FLD_NUM(VPU_HW_BTRS_LNL_WP_REQ_PAYLOAD1, TARGET_RATIO, wp->target, val);
+	val = REG_SET_FLD_NUM(VPU_HW_BTRS_LNL_WP_REQ_PAYLOAD1, EPP, wp->epp, val);
+	REGB_WR32(VPU_HW_BTRS_LNL_WP_REQ_PAYLOAD1, val);
+
+	val = REGB_RD32(VPU_HW_BTRS_LNL_WP_REQ_PAYLOAD2);
+	val = REG_SET_FLD_NUM(VPU_HW_BTRS_LNL_WP_REQ_PAYLOAD2, CONFIG, wp->cfg, val);
+	val = REG_SET_FLD_NUM(VPU_HW_BTRS_LNL_WP_REQ_PAYLOAD2, CDYN, wp->cdyn, val);
+	REGB_WR32(VPU_HW_BTRS_LNL_WP_REQ_PAYLOAD2, val);
+
+	val = REGB_RD32(VPU_HW_BTRS_LNL_WP_REQ_CMD);
+	val = REG_SET_FLD(VPU_HW_BTRS_LNL_WP_REQ_CMD, SEND, val);
+	REGB_WR32(VPU_HW_BTRS_LNL_WP_REQ_CMD, val);
+}
+
+static void wp_request(struct ivpu_device *vdev, struct wp_request *wp)
+{
+	if (ivpu_hw_btrs_gen(vdev) == IVPU_HW_BTRS_MTL)
+		wp_request_mtl(vdev, wp);
+	else
+		wp_request_lnl(vdev, wp);
+}
+
+static int wp_request_send(struct ivpu_device *vdev, struct wp_request *wp)
+{
+	int ret;
+
+	ret = wp_request_sync(vdev);
+	if (ret) {
+		ivpu_err(vdev, "Failed to sync before workpoint request: %d\n", ret);
+		return ret;
+	}
+
+	wp_request(vdev, wp);
+
+	ret = wp_request_sync(vdev);
+	if (ret)
+		ivpu_err(vdev, "Failed to sync after workpoint request: %d\n", ret);
+
+	return ret;
+}
+
+static void prepare_wp_request(struct ivpu_device *vdev, struct wp_request *wp, bool enable)
+{
+	struct ivpu_hw_info *hw = vdev->hw;
+
+	wp->min = hw->pll.min_ratio;
+	wp->max = hw->pll.max_ratio;
+
+	if (ivpu_hw_btrs_gen(vdev) == IVPU_HW_BTRS_MTL) {
+		wp->target = enable ? hw->pll.pn_ratio : 0;
+		wp->cfg = enable ? hw->config : 0;
+		wp->cdyn = 0;
+		wp->epp = 0;
+	} else {
+		wp->target = hw->pll.pn_ratio;
+		wp->cfg = 0;
+		wp->cdyn = enable ? PLL_CDYN_DEFAULT : 0;
+		wp->epp = enable ? PLL_EPP_DEFAULT : 0;
+	}
+}
+
+static int wait_for_pll_lock(struct ivpu_device *vdev, bool enable)
+{
+	u32 exp_val = enable ? 0x1 : 0x0;
+
+	if (ivpu_hw_btrs_gen(vdev) != IVPU_HW_BTRS_MTL)
+		return 0;
+
+	if (IVPU_WA(punit_disabled))
+		return 0;
+
+	return REGB_POLL_FLD(VPU_HW_BTRS_MTL_PLL_STATUS, LOCK, exp_val, PLL_TIMEOUT_US);
+}
+
+static int wait_for_cdyn_deassert(struct ivpu_device *vdev)
+{
+	if (ivpu_hw_btrs_gen(vdev) == IVPU_HW_BTRS_MTL)
+		return 0;
+
+	return REGB_POLL_FLD(VPU_HW_BTRS_LNL_CDYN, CDYN, 0, PLL_TIMEOUT_US);
+}
+
+int ivpu_hw_btrs_wp_drive(struct ivpu_device *vdev, bool enable)
+{
+	struct wp_request wp;
+	int ret;
+
+	if (IVPU_WA(punit_disabled)) {
+		ivpu_dbg(vdev, PM, "Skipping workpoint request\n");
+		return 0;
+	}
+
+	prepare_wp_request(vdev, &wp, enable);
+
+	ivpu_dbg(vdev, PM, "PLL workpoint request: %u MHz, config: 0x%x, epp: 0x%x, cdyn: 0x%x\n",
+		 ivpu_hw_btrs_pll_ratio_to_mhz(vdev, wp.target), wp.cfg, wp.epp, wp.cdyn);
+
+	ret = wp_request_send(vdev, &wp);
+	if (ret) {
+		ivpu_err(vdev, "Failed to send workpoint request: %d\n", ret);
+		return ret;
+	}
+
+	ret = wait_for_pll_lock(vdev, enable);
+	if (ret) {
+		ivpu_err(vdev, "Timed out waiting for PLL lock\n");
+		return ret;
+	}
+
+	ret = wait_for_status_ready(vdev, enable);
+	if (ret) {
+		ivpu_err(vdev, "Timed out waiting for NPU ready status\n");
+		return ret;
+	}
+
+	if (!enable) {
+		ret = wait_for_cdyn_deassert(vdev);
+		if (ret) {
+			ivpu_err(vdev, "Timed out waiting for CDYN deassert\n");
+			return ret;
+		}
+	}
+
+	return 0;
+}
+
+static int d0i3_drive_mtl(struct ivpu_device *vdev, bool enable)
+{
+	int ret;
+	u32 val;
+
+	ret = REGB_POLL_FLD(VPU_HW_BTRS_MTL_VPU_D0I3_CONTROL, INPROGRESS, 0, TIMEOUT_US);
+	if (ret) {
+		ivpu_err(vdev, "Failed to sync before D0i3 transition: %d\n", ret);
+		return ret;
+	}
+
+	val = REGB_RD32(VPU_HW_BTRS_MTL_VPU_D0I3_CONTROL);
+	if (enable)
+		val = REG_SET_FLD(VPU_HW_BTRS_MTL_VPU_D0I3_CONTROL, I3, val);
+	else
+		val = REG_CLR_FLD(VPU_HW_BTRS_MTL_VPU_D0I3_CONTROL, I3, val);
+	REGB_WR32(VPU_HW_BTRS_MTL_VPU_D0I3_CONTROL, val);
+
+	ret = REGB_POLL_FLD(VPU_HW_BTRS_MTL_VPU_D0I3_CONTROL, INPROGRESS, 0, TIMEOUT_US);
+	if (ret)
+		ivpu_err(vdev, "Failed to sync after D0i3 transition: %d\n", ret);
+
+	return ret;
+}
+
+static int d0i3_drive_lnl(struct ivpu_device *vdev, bool enable)
+{
+	int ret;
+	u32 val;
+
+	ret = REGB_POLL_FLD(VPU_HW_BTRS_LNL_D0I3_CONTROL, INPROGRESS, 0, TIMEOUT_US);
+	if (ret) {
+		ivpu_err(vdev, "Failed to sync before D0i3 transition: %d\n", ret);
+		return ret;
+	}
+
+	val = REGB_RD32(VPU_HW_BTRS_LNL_D0I3_CONTROL);
+	if (enable)
+		val = REG_SET_FLD(VPU_HW_BTRS_LNL_D0I3_CONTROL, I3, val);
+	else
+		val = REG_CLR_FLD(VPU_HW_BTRS_LNL_D0I3_CONTROL, I3, val);
+	REGB_WR32(VPU_HW_BTRS_LNL_D0I3_CONTROL, val);
+
+	ret = REGB_POLL_FLD(VPU_HW_BTRS_LNL_D0I3_CONTROL, INPROGRESS, 0, TIMEOUT_US);
+	if (ret) {
+		ivpu_err(vdev, "Failed to sync after D0i3 transition: %d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int d0i3_drive(struct ivpu_device *vdev, bool enable)
+{
+	if (ivpu_hw_btrs_gen(vdev) == IVPU_HW_BTRS_MTL)
+		return d0i3_drive_mtl(vdev, enable);
+	else
+		return d0i3_drive_lnl(vdev, enable);
+}
+
+int ivpu_hw_btrs_d0i3_enable(struct ivpu_device *vdev)
+{
+	int ret;
+
+	if (IVPU_WA(punit_disabled))
+		return 0;
+
+	ret = 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;
+}
+
+int ivpu_hw_btrs_d0i3_disable(struct ivpu_device *vdev)
+{
+	int ret;
+
+	if (IVPU_WA(punit_disabled))
+		return 0;
+
+	ret = d0i3_drive(vdev, false);
+	if (ret)
+		ivpu_err(vdev, "Failed to disable D0i3: %d\n", ret);
+
+	return ret;
+}
+
+int ivpu_hw_btrs_wait_for_clock_res_own_ack(struct ivpu_device *vdev)
+{
+	if (ivpu_hw_btrs_gen(vdev) == IVPU_HW_BTRS_MTL)
+		return 0;
+
+	return REGB_POLL_FLD(VPU_HW_BTRS_LNL_VPU_STATUS, CLOCK_RESOURCE_OWN_ACK, 1, TIMEOUT_US);
+}
+
+void ivpu_hw_btrs_set_port_arbitration_weights_lnl(struct ivpu_device *vdev)
+{
+	REGB_WR32(VPU_HW_BTRS_LNL_PORT_ARBITRATION_WEIGHTS, WEIGHTS_DEFAULT);
+	REGB_WR32(VPU_HW_BTRS_LNL_PORT_ARBITRATION_WEIGHTS_ATS, WEIGHTS_ATS_DEFAULT);
+}
+
+static int ip_reset_mtl(struct ivpu_device *vdev)
+{
+	int ret;
+	u32 val;
+
+	ret = REGB_POLL_FLD(VPU_HW_BTRS_MTL_VPU_IP_RESET, TRIGGER, 0, TIMEOUT_US);
+	if (ret) {
+		ivpu_err(vdev, "Timed out waiting for TRIGGER bit\n");
+		return ret;
+	}
+
+	val = REGB_RD32(VPU_HW_BTRS_MTL_VPU_IP_RESET);
+	val = REG_SET_FLD(VPU_HW_BTRS_MTL_VPU_IP_RESET, TRIGGER, val);
+	REGB_WR32(VPU_HW_BTRS_MTL_VPU_IP_RESET, val);
+
+	ret = REGB_POLL_FLD(VPU_HW_BTRS_MTL_VPU_IP_RESET, TRIGGER, 0, TIMEOUT_US);
+	if (ret)
+		ivpu_err(vdev, "Timed out waiting for RESET completion\n");
+
+	return ret;
+}
+
+static int ip_reset_lnl(struct ivpu_device *vdev)
+{
+	int ret;
+	u32 val;
+
+	ivpu_hw_btrs_clock_relinquish_disable_lnl(vdev);
+
+	ret = REGB_POLL_FLD(VPU_HW_BTRS_LNL_IP_RESET, TRIGGER, 0, TIMEOUT_US);
+	if (ret) {
+		ivpu_err(vdev, "Wait for *_TRIGGER timed out\n");
+		return ret;
+	}
+
+	val = REGB_RD32(VPU_HW_BTRS_LNL_IP_RESET);
+	val = REG_SET_FLD(VPU_HW_BTRS_LNL_IP_RESET, TRIGGER, val);
+	REGB_WR32(VPU_HW_BTRS_LNL_IP_RESET, val);
+
+	ret = REGB_POLL_FLD(VPU_HW_BTRS_LNL_IP_RESET, TRIGGER, 0, TIMEOUT_US);
+	if (ret)
+		ivpu_err(vdev, "Timed out waiting for RESET completion\n");
+
+	return ret;
+}
+
+int ivpu_hw_btrs_ip_reset(struct ivpu_device *vdev)
+{
+	if (IVPU_WA(punit_disabled))
+		return 0;
+
+	if (ivpu_hw_btrs_gen(vdev) == IVPU_HW_BTRS_MTL)
+		return ip_reset_mtl(vdev);
+	else
+		return ip_reset_lnl(vdev);
+}
+
+void ivpu_hw_btrs_profiling_freq_reg_set_lnl(struct ivpu_device *vdev)
+{
+	u32 val = REGB_RD32(VPU_HW_BTRS_LNL_VPU_STATUS);
+
+	if (vdev->hw->pll.profiling_freq == PLL_PROFILING_FREQ_DEFAULT)
+		val = REG_CLR_FLD(VPU_HW_BTRS_LNL_VPU_STATUS, PERF_CLK, val);
+	else
+		val = REG_SET_FLD(VPU_HW_BTRS_LNL_VPU_STATUS, PERF_CLK, val);
+
+	REGB_WR32(VPU_HW_BTRS_LNL_VPU_STATUS, val);
+}
+
+void ivpu_hw_btrs_ats_print_lnl(struct ivpu_device *vdev)
+{
+	ivpu_dbg(vdev, MISC, "Buttress ATS: %s\n",
+		 REGB_RD32(VPU_HW_BTRS_LNL_HM_ATS) ? "Enable" : "Disable");
+}
+
+void ivpu_hw_btrs_clock_relinquish_disable_lnl(struct ivpu_device *vdev)
+{
+	u32 val = REGB_RD32(VPU_HW_BTRS_LNL_VPU_STATUS);
+
+	val = REG_SET_FLD(VPU_HW_BTRS_LNL_VPU_STATUS, DISABLE_CLK_RELINQUISH, val);
+	REGB_WR32(VPU_HW_BTRS_LNL_VPU_STATUS, val);
+}
+
+bool ivpu_hw_btrs_is_idle(struct ivpu_device *vdev)
+{
+	u32 val;
+
+	if (IVPU_WA(punit_disabled))
+		return true;
+
+	if (ivpu_hw_btrs_gen(vdev) == IVPU_HW_BTRS_MTL) {
+		val = REGB_RD32(VPU_HW_BTRS_MTL_VPU_STATUS);
+
+		return REG_TEST_FLD(VPU_HW_BTRS_MTL_VPU_STATUS, READY, val) &&
+		       REG_TEST_FLD(VPU_HW_BTRS_MTL_VPU_STATUS, IDLE, val);
+	} else {
+		val = REGB_RD32(VPU_HW_BTRS_LNL_VPU_STATUS);
+
+		return REG_TEST_FLD(VPU_HW_BTRS_LNL_VPU_STATUS, READY, val) &&
+		       REG_TEST_FLD(VPU_HW_BTRS_LNL_VPU_STATUS, IDLE, val);
+	}
+}
+
+int ivpu_hw_btrs_wait_for_idle(struct ivpu_device *vdev)
+{
+	if (ivpu_hw_btrs_gen(vdev) == IVPU_HW_BTRS_MTL)
+		return REGB_POLL_FLD(VPU_HW_BTRS_MTL_VPU_STATUS, IDLE, 0x1, IDLE_TIMEOUT_US);
+	else
+		return REGB_POLL_FLD(VPU_HW_BTRS_LNL_VPU_STATUS, IDLE, 0x1, IDLE_TIMEOUT_US);
+}
+
+static u32 pll_config_get_mtl(struct ivpu_device *vdev)
+{
+	return REGB_RD32(VPU_HW_BTRS_MTL_CURRENT_PLL);
+}
+
+static u32 pll_config_get_lnl(struct ivpu_device *vdev)
+{
+	return REGB_RD32(VPU_HW_BTRS_LNL_PLL_FREQ);
+}
+
+static u32 pll_ratio_to_mhz_mtl(u8 pll_ratio)
+{
+	return (pll_ratio * PLL_REF_CLK_FREQ_MHZ * 2) / 3;
+}
+
+static u32 pll_ratio_to_mhz_lnl(u8 pll_ratio)
+{
+	return (pll_ratio * PLL_REF_CLK_FREQ_MHZ) / 2;
+}
+
+u32 ivpu_hw_btrs_pll_ratio_to_mhz(struct ivpu_device *vdev, u8 pll_ratio)
+{
+	if (ivpu_hw_btrs_gen(vdev) == IVPU_HW_BTRS_MTL)
+		return pll_ratio_to_mhz_mtl(pll_ratio);
+	else
+		return pll_ratio_to_mhz_lnl(pll_ratio);
+}
+
+u32 ivpu_hw_btrs_pll_ratio_to_hz(struct ivpu_device *vdev, u8 pll_ratio)
+{
+	return ivpu_hw_btrs_pll_ratio_to_mhz(vdev, pll_ratio) * HZ_PER_MHZ;
+}
+
+u32 ivpu_hw_btrs_current_freq_get(struct ivpu_device *vdev)
+{
+	if (ivpu_hw_btrs_gen(vdev) == IVPU_HW_BTRS_MTL)
+		return pll_ratio_to_mhz_mtl(pll_config_get_mtl(vdev));
+	else
+		return pll_ratio_to_mhz_lnl(pll_config_get_lnl(vdev));
+}
+
+static int ivpu_hw_btrs_cfg_freq_set(struct ivpu_device *vdev, u8 cfg_min_ratio, u8 cfg_max_ratio)
+{
+	u8 min_ratio = clamp_t(u8, cfg_min_ratio, vdev->hw->pll.min_ratio, cfg_max_ratio);
+	u8 pn_ratio = clamp_t(u8, vdev->hw->pll.pn_ratio, min_ratio, cfg_max_ratio);
+	int ret;
+
+	ivpu_dbg(vdev, PM, "Set frequency range to min: %u, pn: %u, max: %u MHz\n",
+		 ivpu_hw_btrs_pll_ratio_to_mhz(vdev, min_ratio),
+		 ivpu_hw_btrs_pll_ratio_to_mhz(vdev, pn_ratio),
+		 ivpu_hw_btrs_pll_ratio_to_mhz(vdev, cfg_max_ratio));
+
+	ret = ivpu_rpm_get(vdev);
+	if (ret < 0)
+		return ret;
+
+	ret = ivpu_jsm_msg_freq_config(vdev, min_ratio, pn_ratio, cfg_max_ratio);
+	ivpu_rpm_put(vdev);
+
+	if (ret) {
+		ivpu_warn(vdev,
+			  "Failed to set frequency to min: %u, pn: %u, max: %u MHz, ret %d\n",
+			  ivpu_hw_btrs_pll_ratio_to_mhz(vdev, min_ratio),
+			  ivpu_hw_btrs_pll_ratio_to_mhz(vdev, pn_ratio),
+			  ivpu_hw_btrs_pll_ratio_to_mhz(vdev, cfg_max_ratio),
+			  ret);
+		return ret;
+	}
+
+	vdev->hw->pll.cfg_min_ratio = cfg_min_ratio;
+	vdev->hw->pll.cfg_max_ratio = cfg_max_ratio;
+
+	return 0;
+}
+
+static u8 dpu_mhz_to_pll_ratio_lnl(u32 freq_mhz)
+{
+	return clamp_t(u32, freq_mhz / (PLL_REF_CLK_FREQ_MHZ / 2), 0, U8_MAX);
+}
+
+int ivpu_hw_btrs_cfg_max_freq_set(struct ivpu_device *vdev, u32 max_freq_mhz)
+{
+	u8 ratio = dpu_mhz_to_pll_ratio_lnl(max_freq_mhz);
+	u8 cfg_max_ratio = clamp_t(u8, ratio, vdev->hw->pll.min_ratio, vdev->hw->pll.max_ratio);
+
+	return ivpu_hw_btrs_cfg_freq_set(vdev, vdev->hw->pll.cfg_min_ratio, cfg_max_ratio);
+}
+
+int ivpu_hw_btrs_cfg_min_freq_set(struct ivpu_device *vdev, u32 min_freq_mhz)
+{
+	u8 ratio = dpu_mhz_to_pll_ratio_lnl(min_freq_mhz);
+	u8 cfg_min_ratio = clamp_t(u8, ratio, vdev->hw->pll.min_ratio, vdev->hw->pll.max_ratio);
+
+	return ivpu_hw_btrs_cfg_freq_set(vdev, cfg_min_ratio, vdev->hw->pll.cfg_max_ratio);
+}
+
+int ivpu_hw_btrs_cfg_freq_init(struct ivpu_device *vdev)
+{
+	if (vdev->hw->pll.min_ratio == vdev->hw->pll.cfg_min_ratio &&
+	    vdev->hw->pll.max_ratio == vdev->hw->pll.cfg_max_ratio)
+		return 0;
+
+	return ivpu_hw_btrs_cfg_freq_set(vdev,
+					 vdev->hw->pll.cfg_min_ratio,
+					 vdev->hw->pll.cfg_max_ratio);
+}
+
+/* Handler for IRQs from Buttress core (irqB) */
+bool ivpu_hw_btrs_irq_handler_mtl(struct ivpu_device *vdev, int irq)
+{
+	u32 status = REGB_RD32(VPU_HW_BTRS_MTL_INTERRUPT_STAT) & BTRS_MTL_IRQ_MASK;
+	bool schedule_recovery = false;
+
+	if (!status)
+		return false;
+
+	if (REG_TEST_FLD(VPU_HW_BTRS_MTL_INTERRUPT_STAT, FREQ_CHANGE, status)) {
+		u32 pll = pll_config_get_mtl(vdev);
+
+		ivpu_dbg(vdev, IRQ, "FREQ_CHANGE irq, wp %08x, %u MHz",
+			 pll, pll_ratio_to_mhz_mtl(pll));
+	}
+
+	if (REG_TEST_FLD(VPU_HW_BTRS_MTL_INTERRUPT_STAT, ATS_ERR, status)) {
+		ivpu_err(vdev, "ATS_ERR irq 0x%016llx", REGB_RD64(VPU_HW_BTRS_MTL_ATS_ERR_LOG_0));
+		REGB_WR32(VPU_HW_BTRS_MTL_ATS_ERR_CLEAR, 0x1);
+		schedule_recovery = true;
+	}
+
+	if (REG_TEST_FLD(VPU_HW_BTRS_MTL_INTERRUPT_STAT, UFI_ERR, status)) {
+		u32 ufi_log = REGB_RD32(VPU_HW_BTRS_MTL_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(VPU_HW_BTRS_MTL_UFI_ERR_LOG, OPCODE, ufi_log),
+			 REG_GET_FLD(VPU_HW_BTRS_MTL_UFI_ERR_LOG, AXI_ID, ufi_log),
+			 REG_GET_FLD(VPU_HW_BTRS_MTL_UFI_ERR_LOG, CQ_ID, ufi_log));
+		REGB_WR32(VPU_HW_BTRS_MTL_UFI_ERR_CLEAR, 0x1);
+		schedule_recovery = true;
+	}
+
+	/* This must be done after interrupts are cleared at the source. */
+	if (IVPU_WA(interrupt_clear_with_0))
+		/*
+		 * Writing 1 triggers an interrupt, so we can't perform read update write.
+		 * Clear local interrupt status by writing 0 to all bits.
+		 */
+		REGB_WR32(VPU_HW_BTRS_MTL_INTERRUPT_STAT, 0x0);
+	else
+		REGB_WR32(VPU_HW_BTRS_MTL_INTERRUPT_STAT, status);
+
+	if (schedule_recovery)
+		ivpu_pm_trigger_recovery(vdev, "Buttress IRQ");
+
+	return true;
+}
+
+/* Handler for IRQs from Buttress core (irqB) */
+bool ivpu_hw_btrs_irq_handler_lnl(struct ivpu_device *vdev, int irq)
+{
+	u32 status = REGB_RD32(VPU_HW_BTRS_LNL_INTERRUPT_STAT) & BTRS_LNL_IRQ_MASK;
+	bool schedule_recovery = false;
+
+	if (!status)
+		return false;
+
+	if (REG_TEST_FLD(VPU_HW_BTRS_LNL_INTERRUPT_STAT, SURV_ERR, status)) {
+		ivpu_dbg(vdev, IRQ, "Survivability IRQ\n");
+		queue_work(system_percpu_wq, &vdev->irq_dct_work);
+	}
+
+	if (REG_TEST_FLD(VPU_HW_BTRS_LNL_INTERRUPT_STAT, FREQ_CHANGE, status)) {
+		u32 pll = pll_config_get_lnl(vdev);
+
+		ivpu_dbg(vdev, IRQ, "FREQ_CHANGE irq, wp %08x, %u MHz",
+			 pll, pll_ratio_to_mhz_lnl(pll));
+	}
+
+	if (REG_TEST_FLD(VPU_HW_BTRS_LNL_INTERRUPT_STAT, ATS_ERR, status)) {
+		ivpu_err(vdev, "ATS_ERR LOG1 0x%08x ATS_ERR_LOG2 0x%08x\n",
+			 REGB_RD32(VPU_HW_BTRS_LNL_ATS_ERR_LOG1),
+			 REGB_RD32(VPU_HW_BTRS_LNL_ATS_ERR_LOG2));
+		REGB_WR32(VPU_HW_BTRS_LNL_ATS_ERR_CLEAR, 0x1);
+		schedule_recovery = true;
+	}
+
+	if (REG_TEST_FLD(VPU_HW_BTRS_LNL_INTERRUPT_STAT, CFI0_ERR, status)) {
+		ivpu_err(vdev, "CFI0_ERR 0x%08x", REGB_RD32(VPU_HW_BTRS_LNL_CFI0_ERR_LOG));
+		REGB_WR32(VPU_HW_BTRS_LNL_CFI0_ERR_CLEAR, 0x1);
+		schedule_recovery = true;
+	}
+
+	if (REG_TEST_FLD(VPU_HW_BTRS_LNL_INTERRUPT_STAT, CFI1_ERR, status)) {
+		ivpu_err(vdev, "CFI1_ERR 0x%08x", REGB_RD32(VPU_HW_BTRS_LNL_CFI1_ERR_LOG));
+		REGB_WR32(VPU_HW_BTRS_LNL_CFI1_ERR_CLEAR, 0x1);
+		schedule_recovery = true;
+	}
+
+	if (REG_TEST_FLD(VPU_HW_BTRS_LNL_INTERRUPT_STAT, IMR0_ERR, status)) {
+		ivpu_err(vdev, "IMR_ERR_CFI0 LOW: 0x%08x HIGH: 0x%08x",
+			 REGB_RD32(VPU_HW_BTRS_LNL_IMR_ERR_CFI0_LOW),
+			 REGB_RD32(VPU_HW_BTRS_LNL_IMR_ERR_CFI0_HIGH));
+		REGB_WR32(VPU_HW_BTRS_LNL_IMR_ERR_CFI0_CLEAR, 0x1);
+		schedule_recovery = true;
+	}
+
+	if (REG_TEST_FLD(VPU_HW_BTRS_LNL_INTERRUPT_STAT, IMR1_ERR, status)) {
+		ivpu_err(vdev, "IMR_ERR_CFI1 LOW: 0x%08x HIGH: 0x%08x",
+			 REGB_RD32(VPU_HW_BTRS_LNL_IMR_ERR_CFI1_LOW),
+			 REGB_RD32(VPU_HW_BTRS_LNL_IMR_ERR_CFI1_HIGH));
+		REGB_WR32(VPU_HW_BTRS_LNL_IMR_ERR_CFI1_CLEAR, 0x1);
+		schedule_recovery = true;
+	}
+
+	/* This must be done after interrupts are cleared at the source. */
+	REGB_WR32(VPU_HW_BTRS_LNL_INTERRUPT_STAT, status);
+
+	if (schedule_recovery)
+		ivpu_pm_trigger_recovery(vdev, "Buttress IRQ");
+
+	return true;
+}
+
+int ivpu_hw_btrs_dct_get_request(struct ivpu_device *vdev, bool *enable)
+{
+	u32 val = REGB_RD32(VPU_HW_BTRS_LNL_PCODE_MAILBOX_SHADOW);
+	u32 cmd = REG_GET_FLD(VPU_HW_BTRS_LNL_PCODE_MAILBOX_SHADOW, CMD, val);
+	u32 param1 = REG_GET_FLD(VPU_HW_BTRS_LNL_PCODE_MAILBOX_SHADOW, PARAM1, val);
+
+	if (cmd != DCT_REQ) {
+		ivpu_err_ratelimited(vdev, "Unsupported PCODE command: 0x%x\n", cmd);
+		return -EBADR;
+	}
+
+	switch (param1) {
+	case DCT_ENABLE:
+		*enable = true;
+		return 0;
+	case DCT_DISABLE:
+		*enable = false;
+		return 0;
+	default:
+		ivpu_err_ratelimited(vdev, "Invalid PARAM1 value: %u\n", param1);
+		return -EINVAL;
+	}
+}
+
+void ivpu_hw_btrs_dct_set_status(struct ivpu_device *vdev, bool enable, u8 active_percent)
+{
+	u32 val = 0;
+	u32 cmd = enable ? DCT_ENABLE : DCT_DISABLE;
+
+	val = REG_SET_FLD_NUM(VPU_HW_BTRS_LNL_PCODE_MAILBOX_STATUS, CMD, DCT_REQ, val);
+	val = REG_SET_FLD_NUM(VPU_HW_BTRS_LNL_PCODE_MAILBOX_STATUS, PARAM1, cmd, val);
+	val = REG_SET_FLD_NUM(VPU_HW_BTRS_LNL_PCODE_MAILBOX_STATUS, PARAM2, active_percent, val);
+
+	REGB_WR32(VPU_HW_BTRS_LNL_PCODE_MAILBOX_STATUS, val);
+}
+
+u32 ivpu_hw_btrs_telemetry_offset_get(struct ivpu_device *vdev)
+{
+	if (ivpu_hw_btrs_gen(vdev) == IVPU_HW_BTRS_MTL)
+		return REGB_RD32(VPU_HW_BTRS_MTL_VPU_TELEMETRY_OFFSET);
+	else
+		return REGB_RD32(VPU_HW_BTRS_LNL_VPU_TELEMETRY_OFFSET);
+}
+
+u32 ivpu_hw_btrs_telemetry_size_get(struct ivpu_device *vdev)
+{
+	if (ivpu_hw_btrs_gen(vdev) == IVPU_HW_BTRS_MTL)
+		return REGB_RD32(VPU_HW_BTRS_MTL_VPU_TELEMETRY_SIZE);
+	else
+		return REGB_RD32(VPU_HW_BTRS_LNL_VPU_TELEMETRY_SIZE);
+}
+
+u32 ivpu_hw_btrs_telemetry_enable_get(struct ivpu_device *vdev)
+{
+	if (ivpu_hw_btrs_gen(vdev) == IVPU_HW_BTRS_MTL)
+		return REGB_RD32(VPU_HW_BTRS_MTL_VPU_TELEMETRY_ENABLE);
+	else
+		return REGB_RD32(VPU_HW_BTRS_LNL_VPU_TELEMETRY_ENABLE);
+}
+
+void ivpu_hw_btrs_global_int_disable(struct ivpu_device *vdev)
+{
+	if (ivpu_hw_btrs_gen(vdev) == IVPU_HW_BTRS_MTL)
+		REGB_WR32(VPU_HW_BTRS_MTL_GLOBAL_INT_MASK, 0x1);
+	else
+		REGB_WR32(VPU_HW_BTRS_LNL_GLOBAL_INT_MASK, 0x1);
+}
+
+void ivpu_hw_btrs_global_int_enable(struct ivpu_device *vdev)
+{
+	if (ivpu_hw_btrs_gen(vdev) == IVPU_HW_BTRS_MTL)
+		REGB_WR32(VPU_HW_BTRS_MTL_GLOBAL_INT_MASK, 0x0);
+	else
+		REGB_WR32(VPU_HW_BTRS_LNL_GLOBAL_INT_MASK, 0x0);
+}
+
+void ivpu_hw_btrs_irq_enable(struct ivpu_device *vdev)
+{
+	if (ivpu_hw_btrs_gen(vdev) == IVPU_HW_BTRS_MTL) {
+		REGB_WR32(VPU_HW_BTRS_MTL_LOCAL_INT_MASK, (u32)(~BTRS_MTL_IRQ_MASK));
+		REGB_WR32(VPU_HW_BTRS_MTL_GLOBAL_INT_MASK, 0x0);
+	} else {
+		REGB_WR32(VPU_HW_BTRS_LNL_LOCAL_INT_MASK, (u32)(~BTRS_LNL_IRQ_MASK));
+		REGB_WR32(VPU_HW_BTRS_LNL_GLOBAL_INT_MASK, 0x0);
+	}
+}
+
+void ivpu_hw_btrs_irq_disable(struct ivpu_device *vdev)
+{
+	if (ivpu_hw_btrs_gen(vdev) == IVPU_HW_BTRS_MTL) {
+		REGB_WR32(VPU_HW_BTRS_MTL_GLOBAL_INT_MASK, 0x1);
+		REGB_WR32(VPU_HW_BTRS_MTL_LOCAL_INT_MASK, BTRS_IRQ_DISABLE_MASK);
+	} else {
+		REGB_WR32(VPU_HW_BTRS_LNL_GLOBAL_INT_MASK, 0x1);
+		REGB_WR32(VPU_HW_BTRS_LNL_LOCAL_INT_MASK, BTRS_IRQ_DISABLE_MASK);
+	}
+}
+
+static void diagnose_failure_mtl(struct ivpu_device *vdev)
+{
+	u32 reg = REGB_RD32(VPU_HW_BTRS_MTL_INTERRUPT_STAT) & BTRS_MTL_IRQ_MASK;
+
+	if (REG_TEST_FLD(VPU_HW_BTRS_MTL_INTERRUPT_STAT, ATS_ERR, reg))
+		ivpu_err(vdev, "ATS_ERR irq 0x%016llx", REGB_RD64(VPU_HW_BTRS_MTL_ATS_ERR_LOG_0));
+
+	if (REG_TEST_FLD(VPU_HW_BTRS_MTL_INTERRUPT_STAT, UFI_ERR, reg)) {
+		u32 log = REGB_RD32(VPU_HW_BTRS_MTL_UFI_ERR_LOG);
+
+		ivpu_err(vdev, "UFI_ERR irq (0x%08x) opcode: 0x%02lx axi_id: 0x%02lx cq_id: 0x%03lx",
+			 log, REG_GET_FLD(VPU_HW_BTRS_MTL_UFI_ERR_LOG, OPCODE, log),
+			 REG_GET_FLD(VPU_HW_BTRS_MTL_UFI_ERR_LOG, AXI_ID, log),
+			 REG_GET_FLD(VPU_HW_BTRS_MTL_UFI_ERR_LOG, CQ_ID, log));
+	}
+}
+
+static void diagnose_failure_lnl(struct ivpu_device *vdev)
+{
+	u32 reg = REGB_RD32(VPU_HW_BTRS_LNL_INTERRUPT_STAT) & BTRS_LNL_IRQ_MASK;
+
+	if (REG_TEST_FLD(VPU_HW_BTRS_LNL_INTERRUPT_STAT, ATS_ERR, reg)) {
+		ivpu_err(vdev, "ATS_ERR_LOG1 0x%08x ATS_ERR_LOG2 0x%08x\n",
+			 REGB_RD32(VPU_HW_BTRS_LNL_ATS_ERR_LOG1),
+			 REGB_RD32(VPU_HW_BTRS_LNL_ATS_ERR_LOG2));
+	}
+
+	if (REG_TEST_FLD(VPU_HW_BTRS_LNL_INTERRUPT_STAT, CFI0_ERR, reg))
+		ivpu_err(vdev, "CFI0_ERR_LOG 0x%08x\n", REGB_RD32(VPU_HW_BTRS_LNL_CFI0_ERR_LOG));
+
+	if (REG_TEST_FLD(VPU_HW_BTRS_LNL_INTERRUPT_STAT, CFI1_ERR, reg))
+		ivpu_err(vdev, "CFI1_ERR_LOG 0x%08x\n", REGB_RD32(VPU_HW_BTRS_LNL_CFI1_ERR_LOG));
+
+	if (REG_TEST_FLD(VPU_HW_BTRS_LNL_INTERRUPT_STAT, IMR0_ERR, reg))
+		ivpu_err(vdev, "IMR_ERR_CFI0 LOW: 0x%08x HIGH: 0x%08x\n",
+			 REGB_RD32(VPU_HW_BTRS_LNL_IMR_ERR_CFI0_LOW),
+			 REGB_RD32(VPU_HW_BTRS_LNL_IMR_ERR_CFI0_HIGH));
+
+	if (REG_TEST_FLD(VPU_HW_BTRS_LNL_INTERRUPT_STAT, IMR1_ERR, reg))
+		ivpu_err(vdev, "IMR_ERR_CFI1 LOW: 0x%08x HIGH: 0x%08x\n",
+			 REGB_RD32(VPU_HW_BTRS_LNL_IMR_ERR_CFI1_LOW),
+			 REGB_RD32(VPU_HW_BTRS_LNL_IMR_ERR_CFI1_HIGH));
+
+	if (REG_TEST_FLD(VPU_HW_BTRS_LNL_INTERRUPT_STAT, SURV_ERR, reg))
+		ivpu_err(vdev, "Survivability IRQ\n");
+}
+
+void ivpu_hw_btrs_diagnose_failure(struct ivpu_device *vdev)
+{
+	if (ivpu_hw_btrs_gen(vdev) == IVPU_HW_BTRS_MTL)
+		return diagnose_failure_mtl(vdev);
+	else
+		return diagnose_failure_lnl(vdev);
+}
+
+int ivpu_hw_btrs_platform_read(struct ivpu_device *vdev)
+{
+	u32 reg = REGB_RD32(VPU_HW_BTRS_LNL_VPU_STATUS);
+
+	return REG_GET_FLD(VPU_HW_BTRS_LNL_VPU_STATUS, PLATFORM, reg);
+}

linux-7.2.3/drivers/accel/ivpu/ivpu_hw_btrs.h

@@ -0,0 +1,54 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2020-2026 Intel Corporation
+ */
+
+#ifndef __IVPU_HW_BTRS_H__
+#define __IVPU_HW_BTRS_H__
+
+#include "ivpu_drv.h"
+#include "ivpu_hw_37xx_reg.h"
+#include "ivpu_hw_40xx_reg.h"
+#include "ivpu_hw_reg_io.h"
+
+#define PLL_PROFILING_FREQ_DEFAULT   38400000
+#define PLL_PROFILING_FREQ_HIGH      400000000
+
+#define DCT_DEFAULT_ACTIVE_PERCENT 30u
+#define DCT_PERIOD_US		   35300u
+
+int ivpu_hw_btrs_info_init(struct ivpu_device *vdev);
+void ivpu_hw_btrs_freq_ratios_init(struct ivpu_device *vdev);
+int ivpu_hw_btrs_irqs_clear_with_0_mtl(struct ivpu_device *vdev);
+int ivpu_hw_btrs_wp_drive(struct ivpu_device *vdev, bool enable);
+int ivpu_hw_btrs_wait_for_clock_res_own_ack(struct ivpu_device *vdev);
+int ivpu_hw_btrs_d0i3_enable(struct ivpu_device *vdev);
+int ivpu_hw_btrs_d0i3_disable(struct ivpu_device *vdev);
+void ivpu_hw_btrs_set_port_arbitration_weights_lnl(struct ivpu_device *vdev);
+bool ivpu_hw_btrs_is_idle(struct ivpu_device *vdev);
+int ivpu_hw_btrs_wait_for_idle(struct ivpu_device *vdev);
+int ivpu_hw_btrs_ip_reset(struct ivpu_device *vdev);
+void ivpu_hw_btrs_profiling_freq_reg_set_lnl(struct ivpu_device *vdev);
+void ivpu_hw_btrs_ats_print_lnl(struct ivpu_device *vdev);
+void ivpu_hw_btrs_clock_relinquish_disable_lnl(struct ivpu_device *vdev);
+u32 ivpu_hw_btrs_pll_ratio_to_mhz(struct ivpu_device *vdev, u8 pll_ratio);
+u32 ivpu_hw_btrs_pll_ratio_to_hz(struct ivpu_device *vdev, u8 pll_ratio);
+u32 ivpu_hw_btrs_current_freq_get(struct ivpu_device *vdev);
+int ivpu_hw_btrs_cfg_min_freq_set(struct ivpu_device *vdev, u32 freq_mhz);
+int ivpu_hw_btrs_cfg_max_freq_set(struct ivpu_device *vdev, u32 freq_mhz);
+int ivpu_hw_btrs_cfg_freq_init(struct ivpu_device *vdev);
+bool ivpu_hw_btrs_irq_handler_mtl(struct ivpu_device *vdev, int irq);
+bool ivpu_hw_btrs_irq_handler_lnl(struct ivpu_device *vdev, int irq);
+int ivpu_hw_btrs_dct_get_request(struct ivpu_device *vdev, bool *enable);
+void ivpu_hw_btrs_dct_set_status(struct ivpu_device *vdev, bool enable, u8 active_percent);
+u32 ivpu_hw_btrs_telemetry_offset_get(struct ivpu_device *vdev);
+u32 ivpu_hw_btrs_telemetry_size_get(struct ivpu_device *vdev);
+u32 ivpu_hw_btrs_telemetry_enable_get(struct ivpu_device *vdev);
+void ivpu_hw_btrs_global_int_enable(struct ivpu_device *vdev);
+void ivpu_hw_btrs_global_int_disable(struct ivpu_device *vdev);
+void ivpu_hw_btrs_irq_enable(struct ivpu_device *vdev);
+void ivpu_hw_btrs_irq_disable(struct ivpu_device *vdev);
+void ivpu_hw_btrs_diagnose_failure(struct ivpu_device *vdev);
+int ivpu_hw_btrs_platform_read(struct ivpu_device *vdev);
+
+#endif /* __IVPU_HW_BTRS_H__ */

linux-7.2.3/drivers/accel/ivpu/ivpu_hw_btrs_lnl_reg.h

@@ -0,0 +1,112 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2020-2024 Intel Corporation
+ */
+
+#ifndef __IVPU_HW_BTRS_LNL_REG_H__
+#define __IVPU_HW_BTRS_LNL_REG_H__
+
+#include <linux/bits.h>
+
+#define VPU_HW_BTRS_LNL_INTERRUPT_STAT				0x00000000u
+#define VPU_HW_BTRS_LNL_INTERRUPT_STAT_FREQ_CHANGE_MASK		BIT_MASK(0)
+#define VPU_HW_BTRS_LNL_INTERRUPT_STAT_ATS_ERR_MASK		BIT_MASK(1)
+#define VPU_HW_BTRS_LNL_INTERRUPT_STAT_CFI0_ERR_MASK		BIT_MASK(2)
+#define VPU_HW_BTRS_LNL_INTERRUPT_STAT_CFI1_ERR_MASK		BIT_MASK(3)
+#define VPU_HW_BTRS_LNL_INTERRUPT_STAT_IMR0_ERR_MASK		BIT_MASK(4)
+#define VPU_HW_BTRS_LNL_INTERRUPT_STAT_IMR1_ERR_MASK		BIT_MASK(5)
+#define VPU_HW_BTRS_LNL_INTERRUPT_STAT_SURV_ERR_MASK		BIT_MASK(6)
+
+#define VPU_HW_BTRS_LNL_LOCAL_INT_MASK				0x00000004u
+#define VPU_HW_BTRS_LNL_GLOBAL_INT_MASK				0x00000008u
+
+#define VPU_HW_BTRS_LNL_HM_ATS					0x0000000cu
+
+#define VPU_HW_BTRS_LNL_ATS_ERR_LOG1				0x00000010u
+#define VPU_HW_BTRS_LNL_ATS_ERR_LOG2				0x00000014u
+#define VPU_HW_BTRS_LNL_ATS_ERR_CLEAR				0x00000018u
+
+#define VPU_HW_BTRS_LNL_CFI0_ERR_LOG				0x0000001cu
+#define VPU_HW_BTRS_LNL_CFI0_ERR_CLEAR				0x00000020u
+
+#define VPU_HW_BTRS_LNL_PORT_ARBITRATION_WEIGHTS_ATS		0x00000024u
+
+#define VPU_HW_BTRS_LNL_CFI1_ERR_LOG				0x00000040u
+#define VPU_HW_BTRS_LNL_CFI1_ERR_CLEAR				0x00000044u
+
+#define VPU_HW_BTRS_LNL_IMR_ERR_CFI0_LOW			0x00000048u
+#define VPU_HW_BTRS_LNL_IMR_ERR_CFI0_HIGH			0x0000004cu
+#define VPU_HW_BTRS_LNL_IMR_ERR_CFI0_CLEAR			0x00000050u
+
+#define VPU_HW_BTRS_LNL_PORT_ARBITRATION_WEIGHTS		0x00000054u
+
+#define VPU_HW_BTRS_LNL_IMR_ERR_CFI1_LOW			0x00000058u
+#define VPU_HW_BTRS_LNL_IMR_ERR_CFI1_HIGH			0x0000005cu
+#define VPU_HW_BTRS_LNL_IMR_ERR_CFI1_CLEAR			0x00000060u
+
+#define VPU_HW_BTRS_LNL_PCODE_MAILBOX_STATUS			0x00000070u
+#define VPU_HW_BTRS_LNL_PCODE_MAILBOX_STATUS_CMD_MASK		GENMASK(7, 0)
+#define VPU_HW_BTRS_LNL_PCODE_MAILBOX_STATUS_PARAM1_MASK	GENMASK(15, 8)
+#define VPU_HW_BTRS_LNL_PCODE_MAILBOX_STATUS_PARAM2_MASK	GENMASK(23, 16)
+#define VPU_HW_BTRS_LNL_PCODE_MAILBOX_STATUS_PARAM3_MASK	GENMASK(31, 24)
+
+#define VPU_HW_BTRS_LNL_PCODE_MAILBOX_SHADOW			0x00000074u
+#define VPU_HW_BTRS_LNL_PCODE_MAILBOX_SHADOW_CMD_MASK		GENMASK(7, 0)
+#define VPU_HW_BTRS_LNL_PCODE_MAILBOX_SHADOW_PARAM1_MASK	GENMASK(15, 8)
+#define VPU_HW_BTRS_LNL_PCODE_MAILBOX_SHADOW_PARAM2_MASK	GENMASK(23, 16)
+#define VPU_HW_BTRS_LNL_PCODE_MAILBOX_SHADOW_PARAM3_MASK	GENMASK(31, 24)
+
+#define VPU_HW_BTRS_LNL_WP_REQ_PAYLOAD0				0x00000130u
+#define VPU_HW_BTRS_LNL_WP_REQ_PAYLOAD0_MIN_RATIO_MASK		GENMASK(15, 0)
+#define VPU_HW_BTRS_LNL_WP_REQ_PAYLOAD0_MAX_RATIO_MASK		GENMASK(31, 16)
+
+#define VPU_HW_BTRS_LNL_WP_REQ_PAYLOAD1				0x00000134u
+#define VPU_HW_BTRS_LNL_WP_REQ_PAYLOAD1_TARGET_RATIO_MASK	GENMASK(15, 0)
+#define VPU_HW_BTRS_LNL_WP_REQ_PAYLOAD1_EPP_MASK		GENMASK(31, 16)
+
+#define VPU_HW_BTRS_LNL_WP_REQ_PAYLOAD2				0x00000138u
+#define VPU_HW_BTRS_LNL_WP_REQ_PAYLOAD2_CONFIG_MASK		GENMASK(15, 0)
+#define VPU_HW_BTRS_LNL_WP_REQ_PAYLOAD2_CDYN_MASK		GENMASK(31, 16)
+
+#define VPU_HW_BTRS_LNL_WP_REQ_CMD				0x0000013cu
+#define VPU_HW_BTRS_LNL_WP_REQ_CMD_SEND_MASK			BIT_MASK(0)
+
+#define VPU_HW_BTRS_LNL_PLL_FREQ				0x00000148u
+#define VPU_HW_BTRS_LNL_PLL_FREQ_RATIO_MASK			GENMASK(15, 0)
+
+#define VPU_HW_BTRS_LNL_CDYN					0x0000014cu
+#define VPU_HW_BTRS_LNL_CDYN_CDYN_MASK				GENMASK(15, 0)
+
+#define VPU_HW_BTRS_LNL_TILE_FUSE				0x00000150u
+#define VPU_HW_BTRS_LNL_TILE_FUSE_VALID_MASK			BIT_MASK(0)
+#define VPU_HW_BTRS_LNL_TILE_FUSE_CONFIG_MASK			GENMASK(6, 1)
+
+#define VPU_HW_BTRS_LNL_VPU_STATUS				0x00000154u
+#define VPU_HW_BTRS_LNL_VPU_STATUS_READY_MASK			BIT_MASK(0)
+#define VPU_HW_BTRS_LNL_VPU_STATUS_IDLE_MASK			BIT_MASK(1)
+#define VPU_HW_BTRS_LNL_VPU_STATUS_DUP_IDLE_MASK		BIT_MASK(2)
+#define VPU_HW_BTRS_LNL_VPU_STATUS_CLOCK_RESOURCE_OWN_ACK_MASK	BIT_MASK(6)
+#define VPU_HW_BTRS_LNL_VPU_STATUS_POWER_RESOURCE_OWN_ACK_MASK	BIT_MASK(7)
+#define VPU_HW_BTRS_LNL_VPU_STATUS_PERF_CLK_MASK		BIT_MASK(11)
+#define VPU_HW_BTRS_LNL_VPU_STATUS_DISABLE_CLK_RELINQUISH_MASK  BIT_MASK(12)
+#define VPU_HW_BTRS_LNL_VPU_STATUS_PLATFORM_MASK		GENMASK(31, 29)
+
+#define VPU_HW_BTRS_LNL_IP_RESET				0x00000160u
+#define VPU_HW_BTRS_LNL_IP_RESET_TRIGGER_MASK			BIT_MASK(0)
+
+#define VPU_HW_BTRS_LNL_D0I3_CONTROL				0x00000164u
+#define VPU_HW_BTRS_LNL_D0I3_CONTROL_INPROGRESS_MASK		BIT_MASK(0)
+#define VPU_HW_BTRS_LNL_D0I3_CONTROL_I3_MASK			BIT_MASK(2)
+
+#define VPU_HW_BTRS_LNL_VPU_TELEMETRY_OFFSET			0x00000168u
+#define VPU_HW_BTRS_LNL_VPU_TELEMETRY_SIZE			0x0000016cu
+#define VPU_HW_BTRS_LNL_VPU_TELEMETRY_ENABLE			0x00000170u
+
+#define VPU_HW_BTRS_LNL_FMIN_FUSE				0x00000174u
+#define VPU_HW_BTRS_LNL_FMIN_FUSE_MIN_RATIO_MASK		GENMASK(7, 0)
+#define VPU_HW_BTRS_LNL_FMIN_FUSE_PN_RATIO_MASK			GENMASK(15, 8)
+
+#define VPU_HW_BTRS_LNL_FMAX_FUSE				0x00000178u
+#define VPU_HW_BTRS_LNL_FMAX_FUSE_MAX_RATIO_MASK		GENMASK(7, 0)
+
+#endif /* __IVPU_HW_BTRS_LNL_REG_H__ */

linux-7.2.3/drivers/accel/ivpu/ivpu_hw_btrs_mtl_reg.h

@@ -0,0 +1,83 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2020-2023 Intel Corporation
+ */
+
+#ifndef __IVPU_HW_BTRS_MTL_REG_H__
+#define __IVPU_HW_BTRS_MTL_REG_H__
+
+#include <linux/bits.h>
+
+#define VPU_HW_BTRS_MTL_INTERRUPT_TYPE				0x00000000u
+
+#define VPU_HW_BTRS_MTL_INTERRUPT_STAT				0x00000004u
+#define VPU_HW_BTRS_MTL_INTERRUPT_STAT_FREQ_CHANGE_MASK		BIT_MASK(0)
+#define VPU_HW_BTRS_MTL_INTERRUPT_STAT_ATS_ERR_MASK		BIT_MASK(1)
+#define VPU_HW_BTRS_MTL_INTERRUPT_STAT_UFI_ERR_MASK		BIT_MASK(2)
+
+#define VPU_HW_BTRS_MTL_WP_REQ_PAYLOAD0				0x00000008u
+#define VPU_HW_BTRS_MTL_WP_REQ_PAYLOAD0_MIN_RATIO_MASK		GENMASK(15, 0)
+#define VPU_HW_BTRS_MTL_WP_REQ_PAYLOAD0_MAX_RATIO_MASK		GENMASK(31, 16)
+
+#define VPU_HW_BTRS_MTL_WP_REQ_PAYLOAD1				0x0000000cu
+#define VPU_HW_BTRS_MTL_WP_REQ_PAYLOAD1_TARGET_RATIO_MASK	GENMASK(15, 0)
+#define VPU_HW_BTRS_MTL_WP_REQ_PAYLOAD1_EPP_MASK		GENMASK(31, 16)
+
+#define VPU_HW_BTRS_MTL_WP_REQ_PAYLOAD2				0x00000010u
+#define VPU_HW_BTRS_MTL_WP_REQ_PAYLOAD2_CONFIG_MASK		GENMASK(15, 0)
+
+#define VPU_HW_BTRS_MTL_WP_REQ_CMD				0x00000014u
+#define VPU_HW_BTRS_MTL_WP_REQ_CMD_SEND_MASK			BIT_MASK(0)
+
+#define VPU_HW_BTRS_MTL_WP_DOWNLOAD				0x00000018u
+#define VPU_HW_BTRS_MTL_WP_DOWNLOAD_TARGET_RATIO_MASK		GENMASK(15, 0)
+
+#define VPU_HW_BTRS_MTL_CURRENT_PLL				0x0000001cu
+#define VPU_HW_BTRS_MTL_CURRENT_PLL_RATIO_MASK			GENMASK(15, 0)
+
+#define VPU_HW_BTRS_MTL_PLL_ENABLE				0x00000020u
+
+#define VPU_HW_BTRS_MTL_FMIN_FUSE				0x00000024u
+#define VPU_HW_BTRS_MTL_FMIN_FUSE_MIN_RATIO_MASK		GENMASK(7, 0)
+#define VPU_HW_BTRS_MTL_FMIN_FUSE_PN_RATIO_MASK			GENMASK(15, 8)
+
+#define VPU_HW_BTRS_MTL_FMAX_FUSE				0x00000028u
+#define VPU_HW_BTRS_MTL_FMAX_FUSE_MAX_RATIO_MASK		GENMASK(7, 0)
+
+#define VPU_HW_BTRS_MTL_TILE_FUSE				0x0000002cu
+#define VPU_HW_BTRS_MTL_TILE_FUSE_VALID_MASK			BIT_MASK(0)
+#define VPU_HW_BTRS_MTL_TILE_FUSE_SKU_MASK			GENMASK(3, 2)
+
+#define VPU_HW_BTRS_MTL_LOCAL_INT_MASK				0x00000030u
+#define VPU_HW_BTRS_MTL_GLOBAL_INT_MASK				0x00000034u
+
+#define VPU_HW_BTRS_MTL_PLL_STATUS				0x00000040u
+#define VPU_HW_BTRS_MTL_PLL_STATUS_LOCK_MASK			BIT_MASK(1)
+
+#define VPU_HW_BTRS_MTL_VPU_STATUS				0x00000044u
+#define VPU_HW_BTRS_MTL_VPU_STATUS_READY_MASK			BIT_MASK(0)
+#define VPU_HW_BTRS_MTL_VPU_STATUS_IDLE_MASK			BIT_MASK(1)
+
+#define VPU_HW_BTRS_MTL_VPU_D0I3_CONTROL			0x00000060u
+#define VPU_HW_BTRS_MTL_VPU_D0I3_CONTROL_INPROGRESS_MASK	BIT_MASK(0)
+#define VPU_HW_BTRS_MTL_VPU_D0I3_CONTROL_I3_MASK		BIT_MASK(2)
+
+#define VPU_HW_BTRS_MTL_VPU_IP_RESET				0x00000050u
+#define VPU_HW_BTRS_MTL_VPU_IP_RESET_TRIGGER_MASK		BIT_MASK(0)
+
+#define VPU_HW_BTRS_MTL_VPU_TELEMETRY_OFFSET			0x00000080u
+#define VPU_HW_BTRS_MTL_VPU_TELEMETRY_SIZE			0x00000084u
+#define VPU_HW_BTRS_MTL_VPU_TELEMETRY_ENABLE			0x00000088u
+
+#define VPU_HW_BTRS_MTL_ATS_ERR_LOG_0				0x000000a0u
+#define VPU_HW_BTRS_MTL_ATS_ERR_LOG_1				0x000000a4u
+#define VPU_HW_BTRS_MTL_ATS_ERR_CLEAR				0x000000a8u
+
+#define VPU_HW_BTRS_MTL_UFI_ERR_LOG				0x000000b0u
+#define VPU_HW_BTRS_MTL_UFI_ERR_LOG_CQ_ID_MASK			GENMASK(11, 0)
+#define VPU_HW_BTRS_MTL_UFI_ERR_LOG_AXI_ID_MASK			GENMASK(19, 12)
+#define VPU_HW_BTRS_MTL_UFI_ERR_LOG_OPCODE_MASK			GENMASK(24, 20)
+
+#define VPU_HW_BTRS_MTL_UFI_ERR_CLEAR				0x000000b4u
+
+#endif /* __IVPU_HW_BTRS_MTL_REG_H__ */

linux-7.2.3/drivers/accel/ivpu/ivpu_hw_ip.h

@@ -0,0 +1,35 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2020-2024 Intel Corporation
+ */
+
+#ifndef __IVPU_HW_IP_H__
+#define __IVPU_HW_IP_H__
+
+#include "ivpu_drv.h"
+
+int ivpu_hw_ip_host_ss_configure(struct ivpu_device *vdev);
+void ivpu_hw_ip_idle_gen_enable(struct ivpu_device *vdev);
+void ivpu_hw_ip_idle_gen_disable(struct ivpu_device *vdev);
+int ivpu_hw_ip_pwr_domain_enable(struct ivpu_device *vdev);
+int ivpu_hw_ip_host_ss_axi_enable(struct ivpu_device *vdev);
+int ivpu_hw_ip_top_noc_enable(struct ivpu_device *vdev);
+u64 ivpu_hw_ip_read_perf_timer_counter(struct ivpu_device *vdev);
+void ivpu_hw_ip_snoop_disable(struct ivpu_device *vdev);
+void ivpu_hw_ip_tbu_mmu_enable(struct ivpu_device *vdev);
+int ivpu_hw_ip_soc_cpu_boot(struct ivpu_device *vdev);
+void ivpu_hw_ip_wdt_disable(struct ivpu_device *vdev);
+void ivpu_hw_ip_diagnose_failure(struct ivpu_device *vdev);
+u32 ivpu_hw_ip_ipc_rx_count_get(struct ivpu_device *vdev);
+void ivpu_hw_ip_irq_clear(struct ivpu_device *vdev);
+bool ivpu_hw_ip_irq_handler_37xx(struct ivpu_device *vdev, int irq);
+bool ivpu_hw_ip_irq_handler_40xx(struct ivpu_device *vdev, int irq);
+void ivpu_hw_ip_db_set(struct ivpu_device *vdev, u32 db_id);
+u32 ivpu_hw_ip_ipc_rx_addr_get(struct ivpu_device *vdev);
+void ivpu_hw_ip_ipc_tx_set(struct ivpu_device *vdev, u32 vpu_addr);
+void ivpu_hw_ip_irq_enable(struct ivpu_device *vdev);
+void ivpu_hw_ip_irq_disable(struct ivpu_device *vdev);
+void ivpu_hw_ip_fabric_req_override_enable_50xx(struct ivpu_device *vdev);
+void ivpu_hw_ip_fabric_req_override_disable_50xx(struct ivpu_device *vdev);
+
+#endif /* __IVPU_HW_IP_H__ */

linux-7.2.3/drivers/accel/ivpu/ivpu_hw_reg_io.h

@@ -0,0 +1,133 @@
+/* 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/fault-inject.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_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_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_FLD(reg, fld, exp_fld_val, timeout_us) \
+	ivpu_hw_reg_poll_fld(vdev, vdev->regb, reg, reg##_##fld##_MASK, \
+			     FIELD_PREP(reg##_##fld##_MASK, exp_fld_val), timeout_us, \
+			     __func__, #reg, #fld)
+
+#define REGV_POLL_FLD(reg, fld, exp_fld_val, timeout_us) \
+	ivpu_hw_reg_poll_fld(vdev, vdev->regv, reg, reg##_##fld##_MASK, \
+			     FIELD_PREP(reg##_##fld##_MASK, exp_fld_val), timeout_us, \
+			     __func__, #reg, #fld)
+
+extern struct fault_attr ivpu_hw_failure;
+
+static inline int __must_check
+ivpu_hw_reg_poll_fld(struct ivpu_device *vdev, void __iomem *base,
+		     u32 reg_offset, u32 reg_mask, u32 exp_masked_val, u32 timeout_us,
+		     const char *func_name, const char *reg_name, const char *fld_name)
+{
+	u32 reg_val;
+	int ret;
+
+	ivpu_dbg(vdev, REG, "%s : %s (0x%08x) POLL %s started (exp_val 0x%x)\n",
+		 func_name, reg_name, reg_offset, fld_name, exp_masked_val);
+
+	ret = read_poll_timeout(readl, reg_val, (reg_val & reg_mask) == exp_masked_val,
+				REG_POLL_SLEEP_US, timeout_us, false, base + reg_offset);
+
+#ifdef CONFIG_FAULT_INJECTION
+	if (should_fail(&ivpu_hw_failure, 1))
+		ret = -ETIMEDOUT;
+#endif
+
+	ivpu_dbg(vdev, REG, "%s : %s (0x%08x) POLL %s %s (reg_val 0x%08x)\n",
+		 func_name, reg_name, reg_offset, fld_name, ret ? "ETIMEDOUT" : "OK", reg_val);
+
+	return ret;
+}
+
+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 : %s (0x%08x) RD: 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 : %s (0x%08x) RD: 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 : %s (0x%08x) WR: 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 : %s (0x%08x) WR: 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__ */

linux-7.2.3/drivers/accel/ivpu/ivpu_ipc.c

@@ -0,0 +1,597 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2020-2024 Intel Corporation
+ */
+
+#include <linux/genalloc.h>
+#include <linux/highmem.h>
+#include <linux/pm_runtime.h>
+#include <linux/wait.h>
+
+#include "ivpu_drv.h"
+#include "ivpu_gem.h"
+#include "ivpu_hw.h"
+#include "ivpu_hw_reg_io.h"
+#include "ivpu_ipc.h"
+#include "ivpu_jsm_msg.h"
+#include "ivpu_pm.h"
+#include "ivpu_trace.h"
+
+#define IPC_MAX_RX_MSG	128
+
+struct ivpu_ipc_tx_buf {
+	struct ivpu_ipc_hdr ipc;
+	struct vpu_jsm_msg jsm;
+};
+
+static void ivpu_ipc_msg_dump(struct ivpu_device *vdev, char *c,
+			      struct ivpu_ipc_hdr *ipc_hdr, u32 vpu_addr)
+{
+	ivpu_dbg(vdev, IPC,
+		 "%s: vpu:0x%x (data_addr:0x%08x, data_size:0x%x, channel:0x%x, src_node:0x%x, dst_node:0x%x, status:0x%x)",
+		 c, vpu_addr, ipc_hdr->data_addr, ipc_hdr->data_size, ipc_hdr->channel,
+		 ipc_hdr->src_node, ipc_hdr->dst_node, ipc_hdr->status);
+}
+
+static void ivpu_jsm_msg_dump(struct ivpu_device *vdev, char *c,
+			      struct vpu_jsm_msg *jsm_msg, u32 vpu_addr)
+{
+	u32 *payload = (u32 *)&jsm_msg->payload;
+
+	ivpu_dbg(vdev, JSM,
+		 "%s: vpu:0x%08x (type:%s, status:0x%x, id: 0x%x, result: 0x%x, payload:0x%x 0x%x 0x%x 0x%x 0x%x)\n",
+		 c, vpu_addr, ivpu_jsm_msg_type_to_str(jsm_msg->type),
+		 jsm_msg->status, jsm_msg->request_id, jsm_msg->result,
+		 payload[0], payload[1], payload[2], payload[3], payload[4]);
+}
+
+static void
+ivpu_ipc_rx_mark_free(struct ivpu_device *vdev, struct ivpu_ipc_hdr *ipc_hdr,
+		      struct vpu_jsm_msg *jsm_msg)
+{
+	ipc_hdr->status = IVPU_IPC_HDR_FREE;
+	if (jsm_msg)
+		jsm_msg->status = VPU_JSM_MSG_FREE;
+	wmb(); /* Flush WC buffers for message statuses */
+}
+
+static void ivpu_ipc_mem_fini(struct ivpu_device *vdev)
+{
+	struct ivpu_ipc_info *ipc = vdev->ipc;
+
+	ivpu_bo_free(ipc->mem_rx);
+	ivpu_bo_free(ipc->mem_tx);
+}
+
+static int
+ivpu_ipc_tx_prepare(struct ivpu_device *vdev, struct ivpu_ipc_consumer *cons,
+		    struct vpu_jsm_msg *req)
+{
+	struct ivpu_ipc_info *ipc = vdev->ipc;
+	struct ivpu_ipc_tx_buf *tx_buf;
+	u32 tx_buf_vpu_addr;
+	u32 jsm_vpu_addr;
+
+	tx_buf_vpu_addr = gen_pool_alloc(ipc->mm_tx, sizeof(*tx_buf));
+	if (!tx_buf_vpu_addr) {
+		ivpu_err_ratelimited(vdev, "Failed to reserve IPC buffer, size %ld\n",
+				     sizeof(*tx_buf));
+		return -ENOMEM;
+	}
+
+	tx_buf = ivpu_to_cpu_addr(ipc->mem_tx, tx_buf_vpu_addr);
+	if (drm_WARN_ON(&vdev->drm, !tx_buf)) {
+		gen_pool_free(ipc->mm_tx, tx_buf_vpu_addr, sizeof(*tx_buf));
+		return -EIO;
+	}
+
+	jsm_vpu_addr = tx_buf_vpu_addr + offsetof(struct ivpu_ipc_tx_buf, jsm);
+
+	if (tx_buf->ipc.status != IVPU_IPC_HDR_FREE)
+		ivpu_warn_ratelimited(vdev, "IPC message vpu:0x%x not released by firmware\n",
+				      tx_buf_vpu_addr);
+
+	if (tx_buf->jsm.status != VPU_JSM_MSG_FREE)
+		ivpu_warn_ratelimited(vdev, "JSM message vpu:0x%x not released by firmware\n",
+				      jsm_vpu_addr);
+
+	memset(tx_buf, 0, sizeof(*tx_buf));
+	tx_buf->ipc.data_addr = jsm_vpu_addr;
+	/*
+	 * Firmware expects full JSM message size regardless of the payload size.
+	 * Unused fields must be zeroed to allow future extensions of existing
+	 * commands without breaking compatibility.
+	 */
+	tx_buf->ipc.data_size = sizeof(*req);
+	tx_buf->ipc.channel = cons->channel;
+	tx_buf->ipc.src_node = 0;
+	tx_buf->ipc.dst_node = 1;
+	tx_buf->ipc.status = IVPU_IPC_HDR_ALLOCATED;
+	tx_buf->jsm.type = req->type;
+	tx_buf->jsm.status = VPU_JSM_MSG_ALLOCATED;
+	tx_buf->jsm.payload = req->payload;
+
+	req->request_id = atomic_inc_return(&ipc->request_id);
+	tx_buf->jsm.request_id = req->request_id;
+	cons->request_id = req->request_id;
+	wmb(); /* Flush WC buffers for IPC, JSM msgs */
+
+	cons->tx_vpu_addr = tx_buf_vpu_addr;
+
+	ivpu_jsm_msg_dump(vdev, "TX", &tx_buf->jsm, jsm_vpu_addr);
+	ivpu_ipc_msg_dump(vdev, "TX", &tx_buf->ipc, tx_buf_vpu_addr);
+
+	return 0;
+}
+
+static void ivpu_ipc_tx_release(struct ivpu_device *vdev, u32 vpu_addr)
+{
+	struct ivpu_ipc_info *ipc = vdev->ipc;
+
+	if (vpu_addr)
+		gen_pool_free(ipc->mm_tx, vpu_addr, sizeof(struct ivpu_ipc_tx_buf));
+}
+
+static void ivpu_ipc_tx(struct ivpu_device *vdev, u32 vpu_addr)
+{
+	ivpu_hw_ipc_tx_set(vdev, vpu_addr);
+}
+
+static void
+ivpu_ipc_rx_msg_add(struct ivpu_device *vdev, struct ivpu_ipc_consumer *cons,
+		    struct ivpu_ipc_hdr *ipc_hdr, struct vpu_jsm_msg *jsm_msg)
+{
+	struct ivpu_ipc_info *ipc = vdev->ipc;
+	struct ivpu_ipc_rx_msg *rx_msg;
+
+	lockdep_assert_held(&ipc->cons_lock);
+
+	rx_msg = kzalloc_obj(*rx_msg, GFP_ATOMIC);
+	if (!rx_msg) {
+		ivpu_ipc_rx_mark_free(vdev, ipc_hdr, jsm_msg);
+		return;
+	}
+
+	atomic_inc(&ipc->rx_msg_count);
+
+	rx_msg->ipc_hdr = ipc_hdr;
+	rx_msg->jsm_msg = jsm_msg;
+	rx_msg->callback = cons->rx_callback;
+
+	if (rx_msg->callback) {
+		list_add_tail(&rx_msg->link, &ipc->cb_msg_list);
+	} else {
+		spin_lock(&cons->rx_lock);
+		list_add_tail(&rx_msg->link, &cons->rx_msg_list);
+		spin_unlock(&cons->rx_lock);
+		wake_up(&cons->rx_msg_wq);
+	}
+}
+
+static void
+ivpu_ipc_rx_msg_del(struct ivpu_device *vdev, struct ivpu_ipc_rx_msg *rx_msg)
+{
+	list_del(&rx_msg->link);
+	ivpu_ipc_rx_mark_free(vdev, rx_msg->ipc_hdr, rx_msg->jsm_msg);
+	atomic_dec(&vdev->ipc->rx_msg_count);
+	kfree(rx_msg);
+}
+
+void ivpu_ipc_consumer_add(struct ivpu_device *vdev, struct ivpu_ipc_consumer *cons,
+			   u32 channel, ivpu_ipc_rx_callback_t rx_callback)
+{
+	struct ivpu_ipc_info *ipc = vdev->ipc;
+
+	INIT_LIST_HEAD(&cons->link);
+	cons->channel = channel;
+	cons->tx_vpu_addr = 0;
+	cons->request_id = 0;
+	cons->aborted = false;
+	cons->rx_callback = rx_callback;
+	spin_lock_init(&cons->rx_lock);
+	INIT_LIST_HEAD(&cons->rx_msg_list);
+	init_waitqueue_head(&cons->rx_msg_wq);
+
+	spin_lock_irq(&ipc->cons_lock);
+	list_add_tail(&cons->link, &ipc->cons_list);
+	spin_unlock_irq(&ipc->cons_lock);
+}
+
+void ivpu_ipc_consumer_del(struct ivpu_device *vdev, struct ivpu_ipc_consumer *cons)
+{
+	struct ivpu_ipc_info *ipc = vdev->ipc;
+	struct ivpu_ipc_rx_msg *rx_msg, *r;
+
+	spin_lock_irq(&ipc->cons_lock);
+	list_del(&cons->link);
+	spin_unlock_irq(&ipc->cons_lock);
+
+	spin_lock_irq(&cons->rx_lock);
+	list_for_each_entry_safe(rx_msg, r, &cons->rx_msg_list, link)
+		ivpu_ipc_rx_msg_del(vdev, rx_msg);
+	spin_unlock_irq(&cons->rx_lock);
+
+	ivpu_ipc_tx_release(vdev, cons->tx_vpu_addr);
+}
+
+int ivpu_ipc_send(struct ivpu_device *vdev, struct ivpu_ipc_consumer *cons, struct vpu_jsm_msg *req)
+{
+	struct ivpu_ipc_info *ipc = vdev->ipc;
+	int ret;
+
+	mutex_lock(&ipc->lock);
+
+	if (!ipc->on) {
+		ret = -EAGAIN;
+		goto unlock;
+	}
+
+	ret = ivpu_ipc_tx_prepare(vdev, cons, req);
+	if (ret)
+		goto unlock;
+
+	ivpu_ipc_tx(vdev, cons->tx_vpu_addr);
+	trace_jsm("[tx]", req);
+
+unlock:
+	mutex_unlock(&ipc->lock);
+	return ret;
+}
+
+static bool ivpu_ipc_rx_need_wakeup(struct ivpu_ipc_consumer *cons)
+{
+	bool ret;
+
+	spin_lock_irq(&cons->rx_lock);
+	ret = !list_empty(&cons->rx_msg_list) || cons->aborted;
+	spin_unlock_irq(&cons->rx_lock);
+
+	return ret;
+}
+
+int ivpu_ipc_receive(struct ivpu_device *vdev, struct ivpu_ipc_consumer *cons,
+		     struct ivpu_ipc_hdr *ipc_buf,
+		     struct vpu_jsm_msg *jsm_msg, unsigned long timeout_ms)
+{
+	struct ivpu_ipc_rx_msg *rx_msg;
+	int wait_ret, ret = 0;
+
+	if (drm_WARN_ONCE(&vdev->drm, cons->rx_callback, "Consumer works only in async mode\n"))
+		return -EINVAL;
+
+	wait_ret = wait_event_timeout(cons->rx_msg_wq,
+				      ivpu_ipc_rx_need_wakeup(cons),
+				      msecs_to_jiffies(timeout_ms));
+
+	if (wait_ret == 0)
+		return -ETIMEDOUT;
+
+	spin_lock_irq(&cons->rx_lock);
+	if (cons->aborted) {
+		spin_unlock_irq(&cons->rx_lock);
+		return -ECANCELED;
+	}
+	rx_msg = list_first_entry_or_null(&cons->rx_msg_list, struct ivpu_ipc_rx_msg, link);
+	if (!rx_msg) {
+		spin_unlock_irq(&cons->rx_lock);
+		return -EAGAIN;
+	}
+
+	if (ipc_buf)
+		memcpy(ipc_buf, rx_msg->ipc_hdr, sizeof(*ipc_buf));
+	if (rx_msg->jsm_msg) {
+		u32 size = min(rx_msg->ipc_hdr->data_size, sizeof(*jsm_msg));
+
+		if (rx_msg->jsm_msg->result != VPU_JSM_STATUS_SUCCESS) {
+			ivpu_err(vdev, "IPC resp result error: %d\n", rx_msg->jsm_msg->result);
+			ret = -EBADMSG;
+		}
+
+		if (jsm_msg)
+			memcpy(jsm_msg, rx_msg->jsm_msg, size);
+		trace_jsm("[rx]", rx_msg->jsm_msg);
+	}
+
+	ivpu_ipc_rx_msg_del(vdev, rx_msg);
+	spin_unlock_irq(&cons->rx_lock);
+	return ret;
+}
+
+int
+ivpu_ipc_send_receive_internal(struct ivpu_device *vdev, struct vpu_jsm_msg *req,
+			       enum vpu_ipc_msg_type expected_resp_type,
+			       struct vpu_jsm_msg *resp, u32 channel, unsigned long timeout_ms)
+{
+	struct ivpu_ipc_consumer cons;
+	int ret;
+
+	drm_WARN_ON(&vdev->drm, pm_runtime_status_suspended(vdev->drm.dev) &&
+		    pm_runtime_enabled(vdev->drm.dev));
+
+	ivpu_ipc_consumer_add(vdev, &cons, channel, NULL);
+
+	ret = ivpu_ipc_send(vdev, &cons, req);
+	if (ret) {
+		ivpu_warn_ratelimited(vdev, "IPC send failed: %d\n", ret);
+		goto consumer_del;
+	}
+
+	ret = ivpu_ipc_receive(vdev, &cons, NULL, resp, timeout_ms);
+	if (ret) {
+		ivpu_warn_ratelimited(vdev, "IPC receive failed: type %s, ret %d\n",
+				      ivpu_jsm_msg_type_to_str(req->type), ret);
+		goto consumer_del;
+	}
+
+	if (resp->type != expected_resp_type) {
+		ivpu_warn_ratelimited(vdev, "Invalid JSM response type: 0x%x\n", resp->type);
+		ret = -EBADE;
+	}
+
+consumer_del:
+	ivpu_ipc_consumer_del(vdev, &cons);
+	return ret;
+}
+
+int ivpu_ipc_send_receive(struct ivpu_device *vdev, struct vpu_jsm_msg *req,
+			  enum vpu_ipc_msg_type expected_resp, struct vpu_jsm_msg *resp,
+			  u32 channel, unsigned long timeout_ms)
+{
+	struct vpu_jsm_msg hb_req = { .type = VPU_JSM_MSG_QUERY_ENGINE_HB };
+	struct vpu_jsm_msg hb_resp;
+	int ret, hb_ret;
+
+	ret = ivpu_rpm_get(vdev);
+	if (ret < 0)
+		return ret;
+
+	ret = ivpu_ipc_send_receive_internal(vdev, req, expected_resp, resp, channel, timeout_ms);
+	if (ret != -ETIMEDOUT)
+		goto rpm_put;
+
+	hb_ret = ivpu_ipc_send_receive_internal(vdev, &hb_req, VPU_JSM_MSG_QUERY_ENGINE_HB_DONE,
+						&hb_resp, VPU_IPC_CHAN_ASYNC_CMD,
+						vdev->timeout.jsm);
+	if (hb_ret == -ETIMEDOUT)
+		ivpu_pm_trigger_recovery(vdev, "IPC timeout");
+
+rpm_put:
+	ivpu_rpm_put(vdev);
+	return ret;
+}
+
+int ivpu_ipc_send_and_wait(struct ivpu_device *vdev, struct vpu_jsm_msg *req,
+			   u32 channel, unsigned long timeout_ms)
+{
+	struct ivpu_ipc_consumer cons;
+	int ret;
+
+	ret = ivpu_rpm_get(vdev);
+	if (ret < 0)
+		return ret;
+
+	ivpu_ipc_consumer_add(vdev, &cons, channel, NULL);
+
+	ret = ivpu_ipc_send(vdev, &cons, req);
+	if (ret) {
+		ivpu_warn_ratelimited(vdev, "IPC send failed: %d\n", ret);
+		goto consumer_del;
+	}
+
+	msleep(timeout_ms);
+
+consumer_del:
+	ivpu_ipc_consumer_del(vdev, &cons);
+	ivpu_rpm_put(vdev);
+	return ret;
+}
+
+static bool
+ivpu_ipc_match_consumer(struct ivpu_device *vdev, struct ivpu_ipc_consumer *cons,
+			struct ivpu_ipc_hdr *ipc_hdr, struct vpu_jsm_msg *jsm_msg)
+{
+	if (cons->channel != ipc_hdr->channel)
+		return false;
+
+	if (!jsm_msg || jsm_msg->request_id == cons->request_id)
+		return true;
+
+	return false;
+}
+
+void ivpu_ipc_irq_handler(struct ivpu_device *vdev)
+{
+	struct ivpu_ipc_info *ipc = vdev->ipc;
+	struct ivpu_ipc_consumer *cons;
+	struct ivpu_ipc_hdr *ipc_hdr;
+	struct vpu_jsm_msg *jsm_msg;
+	unsigned long flags;
+	bool dispatched;
+	u32 vpu_addr;
+
+	/*
+	 * Driver needs to purge all messages from IPC FIFO to clear IPC interrupt.
+	 * Without purge IPC FIFO to 0 next IPC interrupts won't be generated.
+	 */
+	while (ivpu_hw_ipc_rx_count_get(vdev)) {
+		vpu_addr = ivpu_hw_ipc_rx_addr_get(vdev);
+		if (vpu_addr == REG_IO_ERROR) {
+			ivpu_err_ratelimited(vdev, "Failed to read IPC rx addr register\n");
+			return;
+		}
+
+		ipc_hdr = ivpu_to_cpu_addr(ipc->mem_rx, vpu_addr);
+		if (!ipc_hdr) {
+			ivpu_warn_ratelimited(vdev, "IPC msg 0x%x out of range\n", vpu_addr);
+			continue;
+		}
+		ivpu_ipc_msg_dump(vdev, "RX", ipc_hdr, vpu_addr);
+
+		jsm_msg = NULL;
+		if (ipc_hdr->channel != IVPU_IPC_CHAN_BOOT_MSG) {
+			jsm_msg = ivpu_to_cpu_addr(ipc->mem_rx, ipc_hdr->data_addr);
+			if (!jsm_msg) {
+				ivpu_warn_ratelimited(vdev, "JSM msg 0x%x out of range\n",
+						      ipc_hdr->data_addr);
+				ivpu_ipc_rx_mark_free(vdev, ipc_hdr, NULL);
+				continue;
+			}
+			ivpu_jsm_msg_dump(vdev, "RX", jsm_msg, ipc_hdr->data_addr);
+		}
+
+		if (atomic_read(&ipc->rx_msg_count) > IPC_MAX_RX_MSG) {
+			ivpu_warn_ratelimited(vdev, "IPC RX msg dropped, msg count %d\n",
+					      IPC_MAX_RX_MSG);
+			ivpu_ipc_rx_mark_free(vdev, ipc_hdr, jsm_msg);
+			continue;
+		}
+
+		dispatched = false;
+		spin_lock_irqsave(&ipc->cons_lock, flags);
+		list_for_each_entry(cons, &ipc->cons_list, link) {
+			if (ivpu_ipc_match_consumer(vdev, cons, ipc_hdr, jsm_msg)) {
+				ivpu_ipc_rx_msg_add(vdev, cons, ipc_hdr, jsm_msg);
+				dispatched = true;
+				break;
+			}
+		}
+		spin_unlock_irqrestore(&ipc->cons_lock, flags);
+
+		if (!dispatched) {
+			ivpu_dbg(vdev, IPC, "IPC RX msg 0x%x dropped (no consumer)\n", vpu_addr);
+			ivpu_ipc_rx_mark_free(vdev, ipc_hdr, jsm_msg);
+		}
+	}
+
+	queue_work(system_percpu_wq, &vdev->irq_ipc_work);
+}
+
+void ivpu_ipc_irq_work_fn(struct work_struct *work)
+{
+	struct ivpu_device *vdev = container_of(work, struct ivpu_device, irq_ipc_work);
+	struct ivpu_ipc_info *ipc = vdev->ipc;
+	struct ivpu_ipc_rx_msg *rx_msg, *r;
+	struct list_head cb_msg_list;
+
+	INIT_LIST_HEAD(&cb_msg_list);
+
+	spin_lock_irq(&ipc->cons_lock);
+	list_splice_tail_init(&ipc->cb_msg_list, &cb_msg_list);
+	spin_unlock_irq(&ipc->cons_lock);
+
+	list_for_each_entry_safe(rx_msg, r, &cb_msg_list, link) {
+		rx_msg->callback(vdev, rx_msg->ipc_hdr, rx_msg->jsm_msg);
+		ivpu_ipc_rx_msg_del(vdev, rx_msg);
+	}
+}
+
+int ivpu_ipc_init(struct ivpu_device *vdev)
+{
+	struct ivpu_ipc_info *ipc = vdev->ipc;
+	int ret;
+
+	ipc->mem_tx = ivpu_bo_create_global(vdev, SZ_16K, DRM_IVPU_BO_WC | DRM_IVPU_BO_MAPPABLE);
+	if (!ipc->mem_tx) {
+		ivpu_err(vdev, "Failed to allocate mem_tx\n");
+		return -ENOMEM;
+	}
+
+	ipc->mem_rx = ivpu_bo_create_global(vdev, SZ_16K, DRM_IVPU_BO_WC | DRM_IVPU_BO_MAPPABLE);
+	if (!ipc->mem_rx) {
+		ivpu_err(vdev, "Failed to allocate mem_rx\n");
+		ret = -ENOMEM;
+		goto err_free_tx;
+	}
+
+	ipc->mm_tx = devm_gen_pool_create(vdev->drm.dev, __ffs(IVPU_IPC_ALIGNMENT),
+					  -1, "TX_IPC_JSM");
+	if (IS_ERR(ipc->mm_tx)) {
+		ret = PTR_ERR(ipc->mm_tx);
+		ivpu_err(vdev, "Failed to create gen pool, %pe\n", ipc->mm_tx);
+		goto err_free_rx;
+	}
+
+	ret = gen_pool_add(ipc->mm_tx, ipc->mem_tx->vpu_addr, ivpu_bo_size(ipc->mem_tx), -1);
+	if (ret) {
+		ivpu_err(vdev, "gen_pool_add failed, ret %d\n", ret);
+		goto err_free_rx;
+	}
+
+	spin_lock_init(&ipc->cons_lock);
+	INIT_LIST_HEAD(&ipc->cons_list);
+	INIT_LIST_HEAD(&ipc->cb_msg_list);
+	ret = drmm_mutex_init(&vdev->drm, &ipc->lock);
+	if (ret) {
+		ivpu_err(vdev, "Failed to initialize ipc->lock, ret %d\n", ret);
+		goto err_free_rx;
+	}
+	ivpu_ipc_reset(vdev);
+	return 0;
+
+err_free_rx:
+	ivpu_bo_free(ipc->mem_rx);
+err_free_tx:
+	ivpu_bo_free(ipc->mem_tx);
+	return ret;
+}
+
+void ivpu_ipc_fini(struct ivpu_device *vdev)
+{
+	struct ivpu_ipc_info *ipc = vdev->ipc;
+
+	drm_WARN_ON(&vdev->drm, !list_empty(&ipc->cons_list));
+	drm_WARN_ON(&vdev->drm, !list_empty(&ipc->cb_msg_list));
+	drm_WARN_ON(&vdev->drm, atomic_read(&ipc->rx_msg_count) > 0);
+
+	ivpu_ipc_mem_fini(vdev);
+}
+
+void ivpu_ipc_enable(struct ivpu_device *vdev)
+{
+	struct ivpu_ipc_info *ipc = vdev->ipc;
+
+	mutex_lock(&ipc->lock);
+	ipc->on = true;
+	mutex_unlock(&ipc->lock);
+}
+
+void ivpu_ipc_disable(struct ivpu_device *vdev)
+{
+	struct ivpu_ipc_info *ipc = vdev->ipc;
+	struct ivpu_ipc_consumer *cons, *c;
+	struct ivpu_ipc_rx_msg *rx_msg, *r;
+
+	drm_WARN_ON(&vdev->drm, !list_empty(&ipc->cb_msg_list));
+
+	mutex_lock(&ipc->lock);
+	ipc->on = false;
+	mutex_unlock(&ipc->lock);
+
+	spin_lock_irq(&ipc->cons_lock);
+	list_for_each_entry_safe(cons, c, &ipc->cons_list, link) {
+		spin_lock(&cons->rx_lock);
+		if (!cons->rx_callback)
+			cons->aborted = true;
+		list_for_each_entry_safe(rx_msg, r, &cons->rx_msg_list, link)
+			ivpu_ipc_rx_msg_del(vdev, rx_msg);
+		spin_unlock(&cons->rx_lock);
+		wake_up(&cons->rx_msg_wq);
+	}
+	spin_unlock_irq(&ipc->cons_lock);
+
+	drm_WARN_ON(&vdev->drm, atomic_read(&ipc->rx_msg_count) > 0);
+}
+
+void ivpu_ipc_reset(struct ivpu_device *vdev)
+{
+	struct ivpu_ipc_info *ipc = vdev->ipc;
+
+	mutex_lock(&ipc->lock);
+	drm_WARN_ON(&vdev->drm, ipc->on);
+
+	memset(ivpu_bo_vaddr(ipc->mem_tx), 0, ivpu_bo_size(ipc->mem_tx));
+	memset(ivpu_bo_vaddr(ipc->mem_rx), 0, ivpu_bo_size(ipc->mem_rx));
+	wmb(); /* Flush WC buffers for TX and RX rings */
+
+	mutex_unlock(&ipc->lock);
+}

linux-7.2.3/drivers/accel/ivpu/ivpu_ipc.h

@@ -0,0 +1,113 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2020-2024 Intel Corporation
+ */
+
+#ifndef __IVPU_IPC_H__
+#define __IVPU_IPC_H__
+
+#include <linux/interrupt.h>
+#include <linux/spinlock.h>
+
+#include "vpu_jsm_api.h"
+
+struct ivpu_bo;
+
+/* VPU FW boot notification */
+#define IVPU_IPC_CHAN_BOOT_MSG		0x3ff
+#define IVPU_IPC_BOOT_MSG_DATA_ADDR	0x424f4f54
+
+/* The alignment to be used for IPC Buffers and IPC Data. */
+#define IVPU_IPC_ALIGNMENT	   64
+
+#define IVPU_IPC_HDR_FREE	   0
+#define IVPU_IPC_HDR_ALLOCATED	   1
+
+/**
+ * struct ivpu_ipc_hdr - The IPC message header structure, exchanged
+ * with the VPU device firmware.
+ * @data_addr: The VPU address of the payload (JSM message)
+ * @data_size: The size of the payload.
+ * @channel: The channel used.
+ * @src_node: The Node ID of the sender.
+ * @dst_node: The Node ID of the intended receiver.
+ * @status: IPC buffer usage status
+ */
+struct ivpu_ipc_hdr {
+	u32 data_addr;
+	u32 data_size;
+	u16 channel;
+	u8 src_node;
+	u8 dst_node;
+	u8 status;
+} __packed __aligned(IVPU_IPC_ALIGNMENT);
+
+typedef void (*ivpu_ipc_rx_callback_t)(struct ivpu_device *vdev,
+				       struct ivpu_ipc_hdr *ipc_hdr,
+				       struct vpu_jsm_msg *jsm_msg);
+
+struct ivpu_ipc_rx_msg {
+	struct list_head link;
+	struct ivpu_ipc_hdr *ipc_hdr;
+	struct vpu_jsm_msg *jsm_msg;
+	ivpu_ipc_rx_callback_t callback;
+};
+
+struct ivpu_ipc_consumer {
+	struct list_head link;
+	u32 channel;
+	u32 tx_vpu_addr;
+	u32 request_id;
+	bool aborted;
+	ivpu_ipc_rx_callback_t rx_callback;
+
+	spinlock_t rx_lock; /* Protects rx_msg_list and aborted */
+	struct list_head rx_msg_list;
+	wait_queue_head_t rx_msg_wq;
+};
+
+struct ivpu_ipc_info {
+	struct gen_pool *mm_tx;
+	struct ivpu_bo *mem_tx;
+	struct ivpu_bo *mem_rx;
+
+	atomic_t rx_msg_count;
+
+	spinlock_t cons_lock; /* Protects cons_list and cb_msg_list */
+	struct list_head cons_list;
+	struct list_head cb_msg_list;
+
+	atomic_t request_id;
+	struct mutex lock; /* Lock on status */
+	bool on;
+};
+
+int ivpu_ipc_init(struct ivpu_device *vdev);
+void ivpu_ipc_fini(struct ivpu_device *vdev);
+
+void ivpu_ipc_enable(struct ivpu_device *vdev);
+void ivpu_ipc_disable(struct ivpu_device *vdev);
+void ivpu_ipc_reset(struct ivpu_device *vdev);
+
+void ivpu_ipc_irq_handler(struct ivpu_device *vdev);
+void ivpu_ipc_irq_work_fn(struct work_struct *work);
+
+void ivpu_ipc_consumer_add(struct ivpu_device *vdev, struct ivpu_ipc_consumer *cons,
+			   u32 channel, ivpu_ipc_rx_callback_t callback);
+void ivpu_ipc_consumer_del(struct ivpu_device *vdev, struct ivpu_ipc_consumer *cons);
+
+int ivpu_ipc_send(struct ivpu_device *vdev, struct ivpu_ipc_consumer *cons,
+		  struct vpu_jsm_msg *req);
+int ivpu_ipc_receive(struct ivpu_device *vdev, struct ivpu_ipc_consumer *cons,
+		     struct ivpu_ipc_hdr *ipc_buf, struct vpu_jsm_msg *jsm_msg,
+		     unsigned long timeout_ms);
+int ivpu_ipc_send_receive_internal(struct ivpu_device *vdev, struct vpu_jsm_msg *req,
+				   enum vpu_ipc_msg_type expected_resp_type,
+				   struct vpu_jsm_msg *resp, u32 channel, unsigned long timeout_ms);
+int ivpu_ipc_send_receive(struct ivpu_device *vdev, struct vpu_jsm_msg *req,
+			  enum vpu_ipc_msg_type expected_resp, struct vpu_jsm_msg *resp,
+			  u32 channel, unsigned long timeout_ms);
+int ivpu_ipc_send_and_wait(struct ivpu_device *vdev, struct vpu_jsm_msg *req,
+			   u32 channel, unsigned long timeout_ms);
+
+#endif /* __IVPU_IPC_H__ */

linux-7.2.3/drivers/accel/ivpu/ivpu_job.h

@@ -0,0 +1,93 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2020-2025 Intel Corporation
+ */
+
+#ifndef __IVPU_JOB_H__
+#define __IVPU_JOB_H__
+
+#include <linux/kref.h>
+#include <linux/idr.h>
+
+#include "ivpu_gem.h"
+
+struct ivpu_device;
+struct ivpu_file_priv;
+
+/**
+ * struct ivpu_cmdq - Represents a command queue for submitting jobs to the VPU.
+ * Tracks queue memory, preemption buffers, and metadata for job management.
+ * @jobq:                Pointer to job queue memory shared with the device
+ * @primary_preempt_buf: Primary preemption buffer for this queue (optional)
+ * @secondary_preempt_buf: Secondary preemption buffer for this queue (optional)
+ * @mem:                 Memory allocated for the job queue, shared with device
+ * @entry_count:         Number of job entries in the queue
+ * @id:                  Unique command queue ID
+ * @db_id:               Doorbell ID assigned to this job queue
+ * @priority:            Priority level of the command queue
+ * @is_legacy:           True if this is a legacy command queue
+ */
+struct ivpu_cmdq {
+	struct vpu_job_queue *jobq;
+	struct ivpu_bo *primary_preempt_buf;
+	struct ivpu_bo *secondary_preempt_buf;
+	struct ivpu_bo *mem;
+	u32 entry_count;
+	u32 id;
+	u32 db_id;
+	u8 priority;
+	bool is_legacy;
+};
+
+/**
+ * struct ivpu_job - Representing a batch or DMA buffer submitted to the VPU.
+ * Each job is a unit of execution, tracked by job_id for status reporting from VPU FW.
+ * The structure holds all resources and metadata needed for job submission, execution,
+ * and completion handling.
+ * @vdev:                Pointer to the VPU device
+ * @file_priv:           The client context that submitted this job
+ * @done_fence:          Fence signaled when job completes
+ * @cmd_buf_vpu_addr:    VPU address of the command buffer for this job
+ * @cmdq_id:             Command queue ID used for submission
+ * @job_id:              Unique job ID for tracking and status reporting
+ * @engine_idx:          Engine index for job execution
+ * @job_status:          Status reported by firmware for this job
+ * @primary_preempt_buf: Primary preemption buffer for job
+ * @secondary_preempt_buf: Secondary preemption buffer for job (optional)
+ * @bo_count:            Number of buffer objects associated with this job
+ * @bos:                 Array of buffer objects used by the job (batch buffer is at index 0)
+ */
+struct ivpu_job {
+	struct ivpu_device *vdev;
+	struct ivpu_file_priv *file_priv;
+	struct dma_fence *done_fence;
+	u64 cmd_buf_vpu_addr;
+	u32 cmdq_id;
+	u32 job_id;
+	u32 engine_idx;
+	u32 job_status;
+	struct ivpu_bo *primary_preempt_buf;
+	struct ivpu_bo *secondary_preempt_buf;
+	size_t bo_count;
+	struct ivpu_bo *bos[] __counted_by(bo_count);
+};
+
+int ivpu_submit_ioctl(struct drm_device *dev, void *data, struct drm_file *file);
+int ivpu_cmdq_create_ioctl(struct drm_device *dev, void *data, struct drm_file *file);
+int ivpu_cmdq_destroy_ioctl(struct drm_device *dev, void *data, struct drm_file *file);
+int ivpu_cmdq_submit_ioctl(struct drm_device *dev, void *data, struct drm_file *file);
+
+void ivpu_context_abort_locked(struct ivpu_file_priv *file_priv);
+
+void ivpu_cmdq_release_all_locked(struct ivpu_file_priv *file_priv);
+void ivpu_cmdq_reset_all_contexts(struct ivpu_device *vdev);
+void ivpu_cmdq_abort_all_jobs(struct ivpu_device *vdev, u32 ctx_id, u32 cmdq_id);
+
+void ivpu_job_done_consumer_init(struct ivpu_device *vdev);
+void ivpu_job_done_consumer_fini(struct ivpu_device *vdev);
+bool ivpu_job_handle_engine_error(struct ivpu_device *vdev, u32 job_id, u32 job_status);
+void ivpu_context_abort_work_fn(struct work_struct *work);
+
+void ivpu_jobs_abort_all(struct ivpu_device *vdev);
+
+#endif /* __IVPU_JOB_H__ */

linux-7.2.3/drivers/accel/ivpu/ivpu_jsm_msg.c

@@ -0,0 +1,586 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2020-2026 Intel Corporation
+ */
+
+#include "ivpu_drv.h"
+#include "ivpu_hw.h"
+#include "ivpu_ipc.h"
+#include "ivpu_jsm_msg.h"
+#include "ivpu_pm.h"
+#include "vpu_jsm_api.h"
+
+const char *ivpu_jsm_msg_type_to_str(enum vpu_ipc_msg_type type)
+{
+	#define IVPU_CASE_TO_STR(x) case x: return #x
+	switch (type) {
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_UNKNOWN);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_ENGINE_RESET);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_ENGINE_PREEMPT);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_REGISTER_DB);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_UNREGISTER_DB);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_QUERY_ENGINE_HB);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_GET_POWER_LEVEL_COUNT);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_GET_POWER_LEVEL);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_SET_POWER_LEVEL);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_METRIC_STREAMER_OPEN);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_METRIC_STREAMER_CLOSE);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_TRACE_SET_CONFIG);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_TRACE_GET_CONFIG);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_TRACE_GET_CAPABILITY);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_TRACE_GET_NAME);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_SSID_RELEASE);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_METRIC_STREAMER_START);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_METRIC_STREAMER_STOP);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_METRIC_STREAMER_UPDATE);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_METRIC_STREAMER_INFO);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_SET_PRIORITY_BAND_SETUP);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_CREATE_CMD_QUEUE);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_DESTROY_CMD_QUEUE);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_SET_CONTEXT_SCHED_PROPERTIES);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_HWS_REGISTER_DB);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_HWS_RESUME_CMDQ);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_HWS_SUSPEND_CMDQ);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_HWS_RESUME_CMDQ_RSP);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_HWS_SUSPEND_CMDQ_DONE);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_HWS_SET_SCHEDULING_LOG);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_HWS_SET_SCHEDULING_LOG_RSP);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_HWS_SCHEDULING_LOG_NOTIFICATION);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_HWS_ENGINE_RESUME);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_HWS_RESUME_ENGINE_DONE);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_STATE_DUMP);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_STATE_DUMP_RSP);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_BLOB_DEINIT_DEPRECATED);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_DYNDBG_CONTROL);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_JOB_DONE);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_NATIVE_FENCE_SIGNALLED);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_ENGINE_RESET_DONE);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_ENGINE_PREEMPT_DONE);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_REGISTER_DB_DONE);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_UNREGISTER_DB_DONE);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_QUERY_ENGINE_HB_DONE);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_GET_POWER_LEVEL_COUNT_DONE);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_GET_POWER_LEVEL_DONE);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_SET_POWER_LEVEL_DONE);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_METRIC_STREAMER_OPEN_DONE);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_METRIC_STREAMER_CLOSE_DONE);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_TRACE_SET_CONFIG_RSP);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_TRACE_GET_CONFIG_RSP);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_TRACE_GET_CAPABILITY_RSP);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_TRACE_GET_NAME_RSP);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_SSID_RELEASE_DONE);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_METRIC_STREAMER_START_DONE);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_METRIC_STREAMER_STOP_DONE);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_METRIC_STREAMER_UPDATE_DONE);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_METRIC_STREAMER_INFO_DONE);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_METRIC_STREAMER_NOTIFICATION);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_SET_PRIORITY_BAND_SETUP_RSP);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_CREATE_CMD_QUEUE_RSP);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_DESTROY_CMD_QUEUE_RSP);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_SET_CONTEXT_SCHED_PROPERTIES_RSP);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_BLOB_DEINIT_DONE);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_DYNDBG_CONTROL_RSP);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_PWR_D0I3_ENTER);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_PWR_D0I3_ENTER_DONE);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_DCT_ENABLE);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_DCT_ENABLE_DONE);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_DCT_DISABLE);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_DCT_DISABLE_DONE);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_FREQ_CONFIG);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_FREQ_CONFIG_RSP);
+	IVPU_CASE_TO_STR(VPU_JSM_MSG_RESERVED_111E);
+	}
+	#undef IVPU_CASE_TO_STR
+
+	return "Unknown JSM message type";
+}
+
+int ivpu_jsm_register_db(struct ivpu_device *vdev, u32 ctx_id, u32 db_id,
+			 u64 jobq_base, u32 jobq_size)
+{
+	struct vpu_jsm_msg req = { .type = VPU_JSM_MSG_REGISTER_DB };
+	struct vpu_jsm_msg resp;
+	int ret = 0;
+
+	req.payload.register_db.db_idx = db_id;
+	req.payload.register_db.jobq_base = jobq_base;
+	req.payload.register_db.jobq_size = jobq_size;
+	req.payload.register_db.host_ssid = ctx_id;
+
+	ret = ivpu_ipc_send_receive(vdev, &req, VPU_JSM_MSG_REGISTER_DB_DONE, &resp,
+				    VPU_IPC_CHAN_ASYNC_CMD, vdev->timeout.jsm);
+	if (ret)
+		ivpu_err_ratelimited(vdev, "Failed to register doorbell %u: %d\n", db_id, ret);
+
+	return ret;
+}
+
+int ivpu_jsm_unregister_db(struct ivpu_device *vdev, u32 db_id)
+{
+	struct vpu_jsm_msg req = { .type = VPU_JSM_MSG_UNREGISTER_DB };
+	struct vpu_jsm_msg resp;
+	int ret = 0;
+
+	req.payload.unregister_db.db_idx = db_id;
+
+	ret = ivpu_ipc_send_receive(vdev, &req, VPU_JSM_MSG_UNREGISTER_DB_DONE, &resp,
+				    VPU_IPC_CHAN_ASYNC_CMD, vdev->timeout.jsm);
+	if (ret)
+		ivpu_warn_ratelimited(vdev, "Failed to unregister doorbell %u: %d\n", db_id, ret);
+
+	return ret;
+}
+
+int ivpu_jsm_get_heartbeat(struct ivpu_device *vdev, u32 engine, u64 *heartbeat)
+{
+	struct vpu_jsm_msg req = { .type = VPU_JSM_MSG_QUERY_ENGINE_HB };
+	struct vpu_jsm_msg resp;
+	int ret;
+
+	if (engine != VPU_ENGINE_COMPUTE)
+		return -EINVAL;
+
+	req.payload.query_engine_hb.engine_idx = engine;
+
+	ret = ivpu_ipc_send_receive(vdev, &req, VPU_JSM_MSG_QUERY_ENGINE_HB_DONE, &resp,
+				    VPU_IPC_CHAN_ASYNC_CMD, vdev->timeout.jsm);
+	if (ret) {
+		ivpu_err_ratelimited(vdev, "Failed to get heartbeat from engine %d: %d\n",
+				     engine, ret);
+		return ret;
+	}
+
+	*heartbeat = resp.payload.query_engine_hb_done.heartbeat;
+	return ret;
+}
+
+int ivpu_jsm_reset_engine(struct ivpu_device *vdev, u32 engine, struct vpu_jsm_msg *resp)
+{
+	struct vpu_jsm_msg req = { .type = VPU_JSM_MSG_ENGINE_RESET };
+	int ret;
+
+	if (engine != VPU_ENGINE_COMPUTE)
+		return -EINVAL;
+
+	req.payload.engine_reset.engine_idx = engine;
+
+	ret = ivpu_ipc_send_receive(vdev, &req, VPU_JSM_MSG_ENGINE_RESET_DONE, resp,
+				    VPU_IPC_CHAN_ASYNC_CMD, vdev->timeout.jsm);
+	if (ret) {
+		ivpu_err_ratelimited(vdev, "Failed to reset engine %d: %d\n", engine, ret);
+		ivpu_pm_trigger_recovery(vdev, "Engine reset failed");
+		return ret;
+	}
+
+	atomic_inc(&vdev->pm->engine_reset_counter);
+
+	return 0;
+}
+
+int ivpu_jsm_preempt_engine(struct ivpu_device *vdev, u32 engine, u32 preempt_id)
+{
+	struct vpu_jsm_msg req = { .type = VPU_JSM_MSG_ENGINE_PREEMPT };
+	struct vpu_jsm_msg resp;
+	int ret;
+
+	if (engine != VPU_ENGINE_COMPUTE)
+		return -EINVAL;
+
+	req.payload.engine_preempt.engine_idx = engine;
+	req.payload.engine_preempt.preempt_id = preempt_id;
+
+	ret = ivpu_ipc_send_receive(vdev, &req, VPU_JSM_MSG_ENGINE_PREEMPT_DONE, &resp,
+				    VPU_IPC_CHAN_ASYNC_CMD, vdev->timeout.jsm);
+	if (ret)
+		ivpu_err_ratelimited(vdev, "Failed to preempt engine %d: %d\n", engine, ret);
+
+	return ret;
+}
+
+int ivpu_jsm_dyndbg_control(struct ivpu_device *vdev, char *command, size_t size)
+{
+	struct vpu_jsm_msg req = { .type = VPU_JSM_MSG_DYNDBG_CONTROL };
+	struct vpu_jsm_msg resp;
+	int ret;
+
+	strscpy(req.payload.dyndbg_control.dyndbg_cmd, command, VPU_DYNDBG_CMD_MAX_LEN);
+
+	ret = ivpu_ipc_send_receive(vdev, &req, VPU_JSM_MSG_DYNDBG_CONTROL_RSP, &resp,
+				    VPU_IPC_CHAN_GEN_CMD, vdev->timeout.jsm);
+	if (ret)
+		ivpu_warn_ratelimited(vdev, "Failed to send command \"%s\": ret %d\n",
+				      command, ret);
+
+	return ret;
+}
+
+int ivpu_jsm_trace_get_capability(struct ivpu_device *vdev, u32 *trace_destination_mask,
+				  u64 *trace_hw_component_mask)
+{
+	struct vpu_jsm_msg req = { .type = VPU_JSM_MSG_TRACE_GET_CAPABILITY };
+	struct vpu_jsm_msg resp;
+	int ret;
+
+	ret = ivpu_ipc_send_receive(vdev, &req, VPU_JSM_MSG_TRACE_GET_CAPABILITY_RSP, &resp,
+				    VPU_IPC_CHAN_ASYNC_CMD, vdev->timeout.jsm);
+	if (ret) {
+		ivpu_warn_ratelimited(vdev, "Failed to get trace capability: %d\n", ret);
+		return ret;
+	}
+
+	*trace_destination_mask = resp.payload.trace_capability.trace_destination_mask;
+	*trace_hw_component_mask = resp.payload.trace_capability.trace_hw_component_mask;
+
+	return ret;
+}
+
+int ivpu_jsm_trace_set_config(struct ivpu_device *vdev, u32 trace_level, u32 trace_destination_mask,
+			      u64 trace_hw_component_mask)
+{
+	struct vpu_jsm_msg req = { .type = VPU_JSM_MSG_TRACE_SET_CONFIG };
+	struct vpu_jsm_msg resp;
+	int ret;
+
+	req.payload.trace_config.trace_level = trace_level;
+	req.payload.trace_config.trace_destination_mask = trace_destination_mask;
+	req.payload.trace_config.trace_hw_component_mask = trace_hw_component_mask;
+
+	ret = ivpu_ipc_send_receive(vdev, &req, VPU_JSM_MSG_TRACE_SET_CONFIG_RSP, &resp,
+				    VPU_IPC_CHAN_ASYNC_CMD, vdev->timeout.jsm);
+	if (ret)
+		ivpu_warn_ratelimited(vdev, "Failed to set config: %d\n", ret);
+
+	return ret;
+}
+
+int ivpu_jsm_context_release(struct ivpu_device *vdev, u32 host_ssid)
+{
+	struct vpu_jsm_msg req = { .type = VPU_JSM_MSG_SSID_RELEASE };
+	struct vpu_jsm_msg resp;
+	int ret;
+
+	req.payload.ssid_release.host_ssid = host_ssid;
+
+	ret = ivpu_ipc_send_receive(vdev, &req, VPU_JSM_MSG_SSID_RELEASE_DONE, &resp,
+				    VPU_IPC_CHAN_ASYNC_CMD, vdev->timeout.jsm);
+	if (ret)
+		ivpu_warn_ratelimited(vdev, "Failed to release context: %d\n", ret);
+
+	return ret;
+}
+
+int ivpu_jsm_pwr_d0i3_enter(struct ivpu_device *vdev)
+{
+	struct vpu_jsm_msg req = { .type = VPU_JSM_MSG_PWR_D0I3_ENTER };
+	struct vpu_jsm_msg resp;
+	int ret;
+
+	req.payload.pwr_d0i3_enter.send_response = 1;
+
+	ret = ivpu_ipc_send_receive_internal(vdev, &req, VPU_JSM_MSG_PWR_D0I3_ENTER_DONE, &resp,
+					     VPU_IPC_CHAN_GEN_CMD, vdev->timeout.d0i3_entry_msg);
+	if (ret)
+		return ret;
+
+	return ivpu_hw_wait_for_idle(vdev);
+}
+
+int ivpu_jsm_hws_create_cmdq(struct ivpu_device *vdev, u32 ctx_id, u32 cmdq_group, u32 cmdq_id,
+			     u32 pid, u32 engine, u64 cmdq_base, u32 cmdq_size)
+{
+	struct vpu_jsm_msg req = { .type = VPU_JSM_MSG_CREATE_CMD_QUEUE };
+	struct vpu_jsm_msg resp;
+	int ret;
+
+	req.payload.hws_create_cmdq.host_ssid = ctx_id;
+	req.payload.hws_create_cmdq.process_id = pid;
+	req.payload.hws_create_cmdq.engine_idx = engine;
+	req.payload.hws_create_cmdq.cmdq_group = cmdq_group;
+	req.payload.hws_create_cmdq.cmdq_id = cmdq_id;
+	req.payload.hws_create_cmdq.cmdq_base = cmdq_base;
+	req.payload.hws_create_cmdq.cmdq_size = cmdq_size;
+
+	ret = ivpu_ipc_send_receive(vdev, &req, VPU_JSM_MSG_CREATE_CMD_QUEUE_RSP, &resp,
+				    VPU_IPC_CHAN_ASYNC_CMD, vdev->timeout.jsm);
+	if (ret)
+		ivpu_warn_ratelimited(vdev, "Failed to create command queue: %d\n", ret);
+
+	return ret;
+}
+
+int ivpu_jsm_hws_destroy_cmdq(struct ivpu_device *vdev, u32 ctx_id, u32 cmdq_id)
+{
+	struct vpu_jsm_msg req = { .type = VPU_JSM_MSG_DESTROY_CMD_QUEUE };
+	struct vpu_jsm_msg resp;
+	int ret;
+
+	req.payload.hws_destroy_cmdq.host_ssid = ctx_id;
+	req.payload.hws_destroy_cmdq.cmdq_id = cmdq_id;
+
+	ret = ivpu_ipc_send_receive(vdev, &req, VPU_JSM_MSG_DESTROY_CMD_QUEUE_RSP, &resp,
+				    VPU_IPC_CHAN_ASYNC_CMD, vdev->timeout.jsm);
+	if (ret)
+		ivpu_warn_ratelimited(vdev, "Failed to destroy command queue: %d\n", ret);
+
+	return ret;
+}
+
+int ivpu_jsm_hws_register_db(struct ivpu_device *vdev, u32 ctx_id, u32 cmdq_id, u32 db_id,
+			     u64 cmdq_base, u32 cmdq_size)
+{
+	struct vpu_jsm_msg req = { .type = VPU_JSM_MSG_HWS_REGISTER_DB };
+	struct vpu_jsm_msg resp;
+	int ret = 0;
+
+	req.payload.hws_register_db.db_id = db_id;
+	req.payload.hws_register_db.host_ssid = ctx_id;
+	req.payload.hws_register_db.cmdq_id = cmdq_id;
+	req.payload.hws_register_db.cmdq_base = cmdq_base;
+	req.payload.hws_register_db.cmdq_size = cmdq_size;
+
+	ret = ivpu_ipc_send_receive(vdev, &req, VPU_JSM_MSG_REGISTER_DB_DONE, &resp,
+				    VPU_IPC_CHAN_ASYNC_CMD, vdev->timeout.jsm);
+	if (ret)
+		ivpu_err_ratelimited(vdev, "Failed to register doorbell %u: %d\n", db_id, ret);
+
+	return ret;
+}
+
+int ivpu_jsm_hws_resume_engine(struct ivpu_device *vdev, u32 engine)
+{
+	struct vpu_jsm_msg req = { .type = VPU_JSM_MSG_HWS_ENGINE_RESUME };
+	struct vpu_jsm_msg resp;
+	int ret;
+
+	if (engine != VPU_ENGINE_COMPUTE)
+		return -EINVAL;
+
+	req.payload.hws_resume_engine.engine_idx = engine;
+
+	ret = ivpu_ipc_send_receive(vdev, &req, VPU_JSM_MSG_HWS_RESUME_ENGINE_DONE, &resp,
+				    VPU_IPC_CHAN_ASYNC_CMD, vdev->timeout.jsm);
+	if (ret) {
+		ivpu_err_ratelimited(vdev, "Failed to resume engine %d: %d\n", engine, ret);
+		ivpu_pm_trigger_recovery(vdev, "Engine resume failed");
+	}
+
+	return ret;
+}
+
+int ivpu_jsm_hws_set_context_sched_properties(struct ivpu_device *vdev, u32 ctx_id, u32 cmdq_id,
+					      u32 priority)
+{
+	struct vpu_jsm_msg req = { .type = VPU_JSM_MSG_SET_CONTEXT_SCHED_PROPERTIES };
+	struct vpu_jsm_msg resp;
+	int ret;
+
+	req.payload.hws_set_context_sched_properties.host_ssid = ctx_id;
+	req.payload.hws_set_context_sched_properties.cmdq_id = cmdq_id;
+	req.payload.hws_set_context_sched_properties.priority_band = priority;
+	req.payload.hws_set_context_sched_properties.realtime_priority_level = 0;
+	req.payload.hws_set_context_sched_properties.in_process_priority = 0;
+	req.payload.hws_set_context_sched_properties.context_quantum = 20000;
+	req.payload.hws_set_context_sched_properties.grace_period_same_priority = 10000;
+	req.payload.hws_set_context_sched_properties.grace_period_lower_priority = 0;
+
+	ret = ivpu_ipc_send_receive(vdev, &req, VPU_JSM_MSG_SET_CONTEXT_SCHED_PROPERTIES_RSP, &resp,
+				    VPU_IPC_CHAN_ASYNC_CMD, vdev->timeout.jsm);
+	if (ret)
+		ivpu_warn_ratelimited(vdev, "Failed to set context sched properties: %d\n", ret);
+
+	return ret;
+}
+
+int ivpu_jsm_hws_set_scheduling_log(struct ivpu_device *vdev, u32 engine_idx, u32 host_ssid,
+				    u64 vpu_log_buffer_va)
+{
+	struct vpu_jsm_msg req = { .type = VPU_JSM_MSG_HWS_SET_SCHEDULING_LOG };
+	struct vpu_jsm_msg resp;
+	int ret;
+
+	req.payload.hws_set_scheduling_log.engine_idx = engine_idx;
+	req.payload.hws_set_scheduling_log.host_ssid = host_ssid;
+	req.payload.hws_set_scheduling_log.vpu_log_buffer_va = vpu_log_buffer_va;
+	req.payload.hws_set_scheduling_log.notify_index = 0;
+
+	ret = ivpu_ipc_send_receive(vdev, &req, VPU_JSM_MSG_HWS_SET_SCHEDULING_LOG_RSP, &resp,
+				    VPU_IPC_CHAN_ASYNC_CMD, vdev->timeout.jsm);
+	if (ret)
+		ivpu_warn_ratelimited(vdev, "Failed to set scheduling log: %d\n", ret);
+
+	return ret;
+}
+
+int ivpu_jsm_hws_setup_priority_bands(struct ivpu_device *vdev)
+{
+	struct vpu_jsm_msg req = { .type = VPU_JSM_MSG_SET_PRIORITY_BAND_SETUP };
+	struct vpu_jsm_msg resp;
+	struct ivpu_hw_info *hw = vdev->hw;
+	struct vpu_ipc_msg_payload_hws_priority_band_setup *setup =
+		&req.payload.hws_priority_band_setup;
+	int ret;
+
+	for (int band = VPU_JOB_SCHEDULING_PRIORITY_BAND_IDLE;
+	     band < VPU_JOB_SCHEDULING_PRIORITY_BAND_COUNT; band++) {
+		setup->grace_period[band] = hw->hws.grace_period[band];
+		setup->process_grace_period[band] = hw->hws.process_grace_period[band];
+		setup->process_quantum[band] = hw->hws.process_quantum[band];
+	}
+	setup->normal_band_percentage = 10;
+
+	ret = ivpu_ipc_send_receive_internal(vdev, &req, VPU_JSM_MSG_SET_PRIORITY_BAND_SETUP_RSP,
+					     &resp, VPU_IPC_CHAN_ASYNC_CMD, vdev->timeout.jsm);
+	if (ret)
+		ivpu_warn_ratelimited(vdev, "Failed to set priority bands: %d\n", ret);
+
+	return ret;
+}
+
+int ivpu_jsm_metric_streamer_start(struct ivpu_device *vdev, u64 metric_group_mask,
+				   u64 sampling_rate, u64 buffer_addr, u64 buffer_size)
+{
+	struct vpu_jsm_msg req = { .type = VPU_JSM_MSG_METRIC_STREAMER_START };
+	struct vpu_jsm_msg resp;
+	int ret;
+
+	req.payload.metric_streamer_start.metric_group_mask = metric_group_mask;
+	req.payload.metric_streamer_start.sampling_rate = sampling_rate;
+	req.payload.metric_streamer_start.buffer_addr = buffer_addr;
+	req.payload.metric_streamer_start.buffer_size = buffer_size;
+
+	ret = ivpu_ipc_send_receive(vdev, &req, VPU_JSM_MSG_METRIC_STREAMER_START_DONE, &resp,
+				    VPU_IPC_CHAN_ASYNC_CMD, vdev->timeout.jsm);
+	if (ret) {
+		ivpu_warn_ratelimited(vdev, "Failed to start metric streamer: ret %d\n", ret);
+		return ret;
+	}
+
+	return ret;
+}
+
+int ivpu_jsm_metric_streamer_stop(struct ivpu_device *vdev, u64 metric_group_mask)
+{
+	struct vpu_jsm_msg req = { .type = VPU_JSM_MSG_METRIC_STREAMER_STOP };
+	struct vpu_jsm_msg resp;
+	int ret;
+
+	req.payload.metric_streamer_stop.metric_group_mask = metric_group_mask;
+
+	ret = ivpu_ipc_send_receive(vdev, &req, VPU_JSM_MSG_METRIC_STREAMER_STOP_DONE, &resp,
+				    VPU_IPC_CHAN_ASYNC_CMD, vdev->timeout.jsm);
+	if (ret)
+		ivpu_warn_ratelimited(vdev, "Failed to stop metric streamer: ret %d\n", ret);
+
+	return ret;
+}
+
+int ivpu_jsm_metric_streamer_update(struct ivpu_device *vdev, u64 metric_group_mask,
+				    u64 buffer_addr, u64 buffer_size, u64 *bytes_written)
+{
+	struct vpu_jsm_msg req = { .type = VPU_JSM_MSG_METRIC_STREAMER_UPDATE };
+	struct vpu_jsm_msg resp;
+	int ret;
+
+	req.payload.metric_streamer_update.metric_group_mask = metric_group_mask;
+	req.payload.metric_streamer_update.buffer_addr = buffer_addr;
+	req.payload.metric_streamer_update.buffer_size = buffer_size;
+
+	ret = ivpu_ipc_send_receive(vdev, &req, VPU_JSM_MSG_METRIC_STREAMER_UPDATE_DONE, &resp,
+				    VPU_IPC_CHAN_ASYNC_CMD, vdev->timeout.jsm);
+	if (ret) {
+		ivpu_warn_ratelimited(vdev, "Failed to update metric streamer: ret %d\n", ret);
+		return ret;
+	}
+
+	if (buffer_size && resp.payload.metric_streamer_done.bytes_written > buffer_size) {
+		ivpu_warn_ratelimited(vdev, "MS buffer overflow: bytes_written %#llx > buffer_size %#llx\n",
+				      resp.payload.metric_streamer_done.bytes_written, buffer_size);
+		return -EOVERFLOW;
+	}
+
+	*bytes_written = resp.payload.metric_streamer_done.bytes_written;
+
+	return ret;
+}
+
+int ivpu_jsm_metric_streamer_info(struct ivpu_device *vdev, u64 metric_group_mask, u64 buffer_addr,
+				  u64 buffer_size, u32 *sample_size, u64 *info_size)
+{
+	struct vpu_jsm_msg req = { .type = VPU_JSM_MSG_METRIC_STREAMER_INFO };
+	struct vpu_jsm_msg resp;
+	int ret;
+
+	req.payload.metric_streamer_start.metric_group_mask = metric_group_mask;
+	req.payload.metric_streamer_start.buffer_addr = buffer_addr;
+	req.payload.metric_streamer_start.buffer_size = buffer_size;
+
+	ret = ivpu_ipc_send_receive(vdev, &req, VPU_JSM_MSG_METRIC_STREAMER_INFO_DONE, &resp,
+				    VPU_IPC_CHAN_ASYNC_CMD, vdev->timeout.jsm);
+	if (ret) {
+		ivpu_warn_ratelimited(vdev, "Failed to get metric streamer info: ret %d\n", ret);
+		return ret;
+	}
+
+	if (!resp.payload.metric_streamer_done.sample_size) {
+		ivpu_warn_ratelimited(vdev, "Invalid sample size\n");
+		return -EBADMSG;
+	}
+
+	if (sample_size)
+		*sample_size = resp.payload.metric_streamer_done.sample_size;
+	if (info_size)
+		*info_size = resp.payload.metric_streamer_done.bytes_written;
+
+	return ret;
+}
+
+int ivpu_jsm_dct_enable(struct ivpu_device *vdev, u32 active_us, u32 inactive_us)
+{
+	struct vpu_jsm_msg req = { .type = VPU_JSM_MSG_DCT_ENABLE };
+	struct vpu_jsm_msg resp;
+
+	req.payload.pwr_dct_control.dct_active_us = active_us;
+	req.payload.pwr_dct_control.dct_inactive_us = inactive_us;
+
+	return ivpu_ipc_send_receive_internal(vdev, &req, VPU_JSM_MSG_DCT_ENABLE_DONE, &resp,
+					      VPU_IPC_CHAN_ASYNC_CMD, vdev->timeout.jsm);
+}
+
+int ivpu_jsm_dct_disable(struct ivpu_device *vdev)
+{
+	struct vpu_jsm_msg req = { .type = VPU_JSM_MSG_DCT_DISABLE };
+	struct vpu_jsm_msg resp;
+
+	return ivpu_ipc_send_receive_internal(vdev, &req, VPU_JSM_MSG_DCT_DISABLE_DONE, &resp,
+					      VPU_IPC_CHAN_ASYNC_CMD, vdev->timeout.jsm);
+}
+
+int ivpu_jsm_state_dump(struct ivpu_device *vdev)
+{
+	struct vpu_jsm_msg req = { .type = VPU_JSM_MSG_STATE_DUMP };
+	struct vpu_jsm_msg resp;
+
+	return ivpu_ipc_send_receive_internal(vdev, &req, VPU_JSM_MSG_STATE_DUMP_RSP, &resp,
+					      VPU_IPC_CHAN_ASYNC_CMD, vdev->timeout.jsm);
+}
+
+int ivpu_jsm_state_dump_no_reply(struct ivpu_device *vdev)
+{
+	struct vpu_jsm_msg req = { .type = VPU_JSM_MSG_STATE_DUMP };
+
+	return ivpu_ipc_send_and_wait(vdev, &req, VPU_IPC_CHAN_ASYNC_CMD,
+				      vdev->timeout.state_dump_msg);
+}
+
+int ivpu_jsm_msg_freq_config(struct ivpu_device *vdev, u16 min_ratio, u16 pn_ratio, u16 max_ratio)
+{
+	struct vpu_jsm_msg req = { .type = VPU_JSM_MSG_FREQ_CONFIG};
+	struct vpu_jsm_msg resp;
+
+	req.payload.freq_config.min_freq_pll_ratio = min_ratio;
+	req.payload.freq_config.pn_freq_pll_ratio = pn_ratio;
+	req.payload.freq_config.max_freq_pll_ratio = max_ratio;
+
+	return ivpu_ipc_send_receive_internal(vdev, &req, VPU_JSM_MSG_FREQ_CONFIG_RSP, &resp,
+					      VPU_IPC_CHAN_ASYNC_CMD, vdev->timeout.jsm);
+}

linux-7.2.3/drivers/accel/ivpu/ivpu_jsm_msg.h

@@ -0,0 +1,50 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2020-2026 Intel Corporation
+ */
+
+#ifndef __IVPU_JSM_MSG_H__
+#define __IVPU_JSM_MSG_H__
+
+#include "vpu_jsm_api.h"
+
+const char *ivpu_jsm_msg_type_to_str(enum vpu_ipc_msg_type type);
+
+int ivpu_jsm_register_db(struct ivpu_device *vdev, u32 ctx_id, u32 db_id,
+			 u64 jobq_base, u32 jobq_size);
+int ivpu_jsm_unregister_db(struct ivpu_device *vdev, u32 db_id);
+int ivpu_jsm_get_heartbeat(struct ivpu_device *vdev, u32 engine, u64 *heartbeat);
+int ivpu_jsm_reset_engine(struct ivpu_device *vdev, u32 engine, struct vpu_jsm_msg *response);
+int ivpu_jsm_preempt_engine(struct ivpu_device *vdev, u32 engine, u32 preempt_id);
+int ivpu_jsm_dyndbg_control(struct ivpu_device *vdev, char *command, size_t size);
+int ivpu_jsm_trace_get_capability(struct ivpu_device *vdev, u32 *trace_destination_mask,
+				  u64 *trace_hw_component_mask);
+int ivpu_jsm_trace_set_config(struct ivpu_device *vdev, u32 trace_level, u32 trace_destination_mask,
+			      u64 trace_hw_component_mask);
+int ivpu_jsm_context_release(struct ivpu_device *vdev, u32 host_ssid);
+int ivpu_jsm_pwr_d0i3_enter(struct ivpu_device *vdev);
+int ivpu_jsm_hws_create_cmdq(struct ivpu_device *vdev, u32 ctx_id, u32 cmdq_group, u32 cmdq_id,
+			     u32 pid, u32 engine, u64 cmdq_base, u32 cmdq_size);
+int ivpu_jsm_hws_destroy_cmdq(struct ivpu_device *vdev, u32 ctx_id, u32 cmdq_id);
+int ivpu_jsm_hws_register_db(struct ivpu_device *vdev, u32 ctx_id, u32 cmdq_id, u32 db_id,
+			     u64 cmdq_base, u32 cmdq_size);
+int ivpu_jsm_hws_resume_engine(struct ivpu_device *vdev, u32 engine);
+int ivpu_jsm_hws_set_context_sched_properties(struct ivpu_device *vdev, u32 ctx_id, u32 cmdq_id,
+					      u32 priority);
+int ivpu_jsm_hws_set_scheduling_log(struct ivpu_device *vdev, u32 engine_idx, u32 host_ssid,
+				    u64 vpu_log_buffer_va);
+int ivpu_jsm_hws_setup_priority_bands(struct ivpu_device *vdev);
+int ivpu_jsm_metric_streamer_start(struct ivpu_device *vdev, u64 metric_group_mask,
+				   u64 sampling_rate, u64 buffer_addr, u64 buffer_size);
+int ivpu_jsm_metric_streamer_stop(struct ivpu_device *vdev, u64 metric_group_mask);
+int ivpu_jsm_metric_streamer_update(struct ivpu_device *vdev, u64 metric_group_mask,
+				    u64 buffer_addr, u64 buffer_size, u64 *bytes_written);
+int ivpu_jsm_metric_streamer_info(struct ivpu_device *vdev, u64 metric_group_mask, u64 buffer_addr,
+				  u64 buffer_size, u32 *sample_size, u64 *info_size);
+int ivpu_jsm_dct_enable(struct ivpu_device *vdev, u32 active_us, u32 inactive_us);
+int ivpu_jsm_dct_disable(struct ivpu_device *vdev);
+int ivpu_jsm_state_dump(struct ivpu_device *vdev);
+int ivpu_jsm_state_dump_no_reply(struct ivpu_device *vdev);
+int ivpu_jsm_msg_freq_config(struct ivpu_device *vdev, u16 min_ratio, u16 pn_ratio, u16 max_ratio);
+
+#endif

linux-7.2.3/drivers/accel/ivpu/ivpu_mmu.h

@@ -0,0 +1,53 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2020-2023 Intel Corporation
+ */
+
+#ifndef __IVPU_MMU_H__
+#define __IVPU_MMU_H__
+
+struct ivpu_device;
+
+struct ivpu_mmu_cdtab {
+	void *base;
+	dma_addr_t dma;
+};
+
+struct ivpu_mmu_strtab {
+	void *base;
+	dma_addr_t dma;
+	u64 dma_q;
+	u32 base_cfg;
+};
+
+struct ivpu_mmu_queue {
+	void *base;
+	dma_addr_t dma;
+	u64 dma_q;
+	u32 prod;
+	u32 cons;
+};
+
+struct ivpu_mmu_info {
+	struct mutex lock; /* Protects cdtab, strtab, cmdq, on */
+	struct ivpu_mmu_cdtab cdtab;
+	struct ivpu_mmu_strtab strtab;
+	struct ivpu_mmu_queue cmdq;
+	struct ivpu_mmu_queue evtq;
+	bool on;
+};
+
+int ivpu_mmu_init(struct ivpu_device *vdev);
+void ivpu_mmu_disable(struct ivpu_device *vdev);
+int ivpu_mmu_enable(struct ivpu_device *vdev);
+int ivpu_mmu_cd_set(struct ivpu_device *vdev, int ssid, struct ivpu_mmu_pgtable *pgtable);
+void ivpu_mmu_cd_clear(struct ivpu_device *vdev, int ssid);
+int ivpu_mmu_invalidate_tlb(struct ivpu_device *vdev, u16 ssid);
+
+void ivpu_mmu_irq_evtq_handler(struct ivpu_device *vdev);
+void ivpu_mmu_irq_gerr_handler(struct ivpu_device *vdev);
+void ivpu_mmu_evtq_dump(struct ivpu_device *vdev);
+void ivpu_mmu_discard_events(struct ivpu_device *vdev);
+int ivpu_mmu_disable_ssid_events(struct ivpu_device *vdev, u32 ssid);
+
+#endif /* __IVPU_MMU_H__ */

linux-7.2.3/drivers/accel/ivpu/ivpu_mmu_context.c

@@ -0,0 +1,654 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2020-2023 Intel Corporation
+ */
+
+#include <linux/bitfield.h>
+#include <linux/highmem.h>
+#include <linux/set_memory.h>
+#include <linux/vmalloc.h>
+
+#include <drm/drm_cache.h>
+
+#include "ivpu_drv.h"
+#include "ivpu_hw.h"
+#include "ivpu_mmu.h"
+#include "ivpu_mmu_context.h"
+
+#define IVPU_MMU_VPU_ADDRESS_MASK        GENMASK(47, 12)
+#define IVPU_MMU_PGD_INDEX_MASK          GENMASK(47, 39)
+#define IVPU_MMU_PUD_INDEX_MASK          GENMASK(38, 30)
+#define IVPU_MMU_PMD_INDEX_MASK          GENMASK(29, 21)
+#define IVPU_MMU_PTE_INDEX_MASK          GENMASK(20, 12)
+#define IVPU_MMU_ENTRY_FLAGS_MASK        (BIT(52) | GENMASK(11, 0))
+#define IVPU_MMU_ENTRY_FLAG_CONT         BIT(52)
+#define IVPU_MMU_ENTRY_FLAG_NG           BIT(11)
+#define IVPU_MMU_ENTRY_FLAG_AF           BIT(10)
+#define IVPU_MMU_ENTRY_FLAG_RO           BIT(7)
+#define IVPU_MMU_ENTRY_FLAG_USER         BIT(6)
+#define IVPU_MMU_ENTRY_FLAG_LLC_COHERENT BIT(2)
+#define IVPU_MMU_ENTRY_FLAG_TYPE_PAGE    BIT(1)
+#define IVPU_MMU_ENTRY_FLAG_VALID        BIT(0)
+
+#define IVPU_MMU_PAGE_SIZE       SZ_4K
+#define IVPU_MMU_CONT_PAGES_SIZE (IVPU_MMU_PAGE_SIZE * 16)
+#define IVPU_MMU_PTE_MAP_SIZE    (IVPU_MMU_PGTABLE_ENTRIES * IVPU_MMU_PAGE_SIZE)
+#define IVPU_MMU_PMD_MAP_SIZE    (IVPU_MMU_PGTABLE_ENTRIES * IVPU_MMU_PTE_MAP_SIZE)
+#define IVPU_MMU_PUD_MAP_SIZE    (IVPU_MMU_PGTABLE_ENTRIES * IVPU_MMU_PMD_MAP_SIZE)
+#define IVPU_MMU_PGD_MAP_SIZE    (IVPU_MMU_PGTABLE_ENTRIES * IVPU_MMU_PUD_MAP_SIZE)
+#define IVPU_MMU_PGTABLE_SIZE    (IVPU_MMU_PGTABLE_ENTRIES * sizeof(u64))
+
+#define IVPU_MMU_DUMMY_ADDRESS 0xdeadb000
+#define IVPU_MMU_ENTRY_VALID   (IVPU_MMU_ENTRY_FLAG_TYPE_PAGE | IVPU_MMU_ENTRY_FLAG_VALID)
+#define IVPU_MMU_ENTRY_INVALID (IVPU_MMU_DUMMY_ADDRESS & ~IVPU_MMU_ENTRY_FLAGS_MASK)
+#define IVPU_MMU_ENTRY_MAPPED  (IVPU_MMU_ENTRY_FLAG_AF | IVPU_MMU_ENTRY_FLAG_USER | \
+				IVPU_MMU_ENTRY_FLAG_NG | IVPU_MMU_ENTRY_VALID)
+
+static void *ivpu_pgtable_alloc_page(struct ivpu_device *vdev, dma_addr_t *dma)
+{
+	dma_addr_t dma_addr;
+	struct page *page;
+	void *cpu;
+
+	page = alloc_page(GFP_KERNEL | __GFP_HIGHMEM | __GFP_ZERO);
+	if (!page)
+		return NULL;
+
+	set_pages_array_wc(&page, 1);
+
+	dma_addr = dma_map_page(vdev->drm.dev, page, 0, PAGE_SIZE, DMA_BIDIRECTIONAL);
+	if (dma_mapping_error(vdev->drm.dev, dma_addr))
+		goto err_free_page;
+
+	cpu = vmap(&page, 1, VM_MAP, pgprot_writecombine(PAGE_KERNEL));
+	if (!cpu)
+		goto err_dma_unmap_page;
+
+
+	*dma = dma_addr;
+	return cpu;
+
+err_dma_unmap_page:
+	dma_unmap_page(vdev->drm.dev, dma_addr, PAGE_SIZE, DMA_BIDIRECTIONAL);
+
+err_free_page:
+	put_page(page);
+	return NULL;
+}
+
+static void ivpu_pgtable_free_page(struct ivpu_device *vdev, u64 *cpu_addr, dma_addr_t dma_addr)
+{
+	struct page *page;
+
+	if (cpu_addr) {
+		page = vmalloc_to_page(cpu_addr);
+		vunmap(cpu_addr);
+		dma_unmap_page(vdev->drm.dev, dma_addr & ~IVPU_MMU_ENTRY_FLAGS_MASK, PAGE_SIZE,
+			       DMA_BIDIRECTIONAL);
+		set_pages_array_wb(&page, 1);
+		put_page(page);
+	}
+}
+
+static void ivpu_mmu_pgtables_free(struct ivpu_device *vdev, struct ivpu_mmu_pgtable *pgtable)
+{
+	int pgd_idx, pud_idx, pmd_idx;
+	dma_addr_t pud_dma, pmd_dma, pte_dma;
+	u64 *pud_dma_ptr, *pmd_dma_ptr, *pte_dma_ptr;
+
+	for (pgd_idx = 0; pgd_idx < IVPU_MMU_PGTABLE_ENTRIES; ++pgd_idx) {
+		pud_dma_ptr = pgtable->pud_ptrs[pgd_idx];
+		pud_dma = pgtable->pgd_dma_ptr[pgd_idx];
+
+		if (!pud_dma_ptr)
+			continue;
+
+		for (pud_idx = 0; pud_idx < IVPU_MMU_PGTABLE_ENTRIES; ++pud_idx) {
+			pmd_dma_ptr = pgtable->pmd_ptrs[pgd_idx][pud_idx];
+			pmd_dma = pgtable->pud_ptrs[pgd_idx][pud_idx];
+
+			if (!pmd_dma_ptr)
+				continue;
+
+			for (pmd_idx = 0; pmd_idx < IVPU_MMU_PGTABLE_ENTRIES; ++pmd_idx) {
+				pte_dma_ptr = pgtable->pte_ptrs[pgd_idx][pud_idx][pmd_idx];
+				pte_dma = pgtable->pmd_ptrs[pgd_idx][pud_idx][pmd_idx];
+
+				ivpu_pgtable_free_page(vdev, pte_dma_ptr, pte_dma);
+			}
+
+			kfree(pgtable->pte_ptrs[pgd_idx][pud_idx]);
+			ivpu_pgtable_free_page(vdev, pmd_dma_ptr, pmd_dma);
+		}
+
+		kfree(pgtable->pmd_ptrs[pgd_idx]);
+		kfree(pgtable->pte_ptrs[pgd_idx]);
+		ivpu_pgtable_free_page(vdev, pud_dma_ptr, pud_dma);
+	}
+
+	ivpu_pgtable_free_page(vdev, pgtable->pgd_dma_ptr, pgtable->pgd_dma);
+	pgtable->pgd_dma_ptr = NULL;
+	pgtable->pgd_dma = 0;
+}
+
+static u64*
+ivpu_mmu_ensure_pgd(struct ivpu_device *vdev, struct ivpu_mmu_pgtable *pgtable)
+{
+	u64 *pgd_dma_ptr = pgtable->pgd_dma_ptr;
+	dma_addr_t pgd_dma;
+
+	if (pgd_dma_ptr)
+		return pgd_dma_ptr;
+
+	pgd_dma_ptr = ivpu_pgtable_alloc_page(vdev, &pgd_dma);
+	if (!pgd_dma_ptr)
+		return NULL;
+
+	pgtable->pgd_dma_ptr = pgd_dma_ptr;
+	pgtable->pgd_dma = pgd_dma;
+
+	return pgd_dma_ptr;
+}
+
+static u64*
+ivpu_mmu_ensure_pud(struct ivpu_device *vdev, struct ivpu_mmu_pgtable *pgtable, int pgd_idx)
+{
+	u64 *pud_dma_ptr = pgtable->pud_ptrs[pgd_idx];
+	dma_addr_t pud_dma;
+
+	if (pud_dma_ptr)
+		return pud_dma_ptr;
+
+	pud_dma_ptr = ivpu_pgtable_alloc_page(vdev, &pud_dma);
+	if (!pud_dma_ptr)
+		return NULL;
+
+	drm_WARN_ON(&vdev->drm, pgtable->pmd_ptrs[pgd_idx]);
+	pgtable->pmd_ptrs[pgd_idx] = kzalloc(IVPU_MMU_PGTABLE_SIZE, GFP_KERNEL);
+	if (!pgtable->pmd_ptrs[pgd_idx])
+		goto err_free_pud_dma_ptr;
+
+	drm_WARN_ON(&vdev->drm, pgtable->pte_ptrs[pgd_idx]);
+	pgtable->pte_ptrs[pgd_idx] = kzalloc(IVPU_MMU_PGTABLE_SIZE, GFP_KERNEL);
+	if (!pgtable->pte_ptrs[pgd_idx])
+		goto err_free_pmd_ptrs;
+
+	pgtable->pud_ptrs[pgd_idx] = pud_dma_ptr;
+	pgtable->pgd_dma_ptr[pgd_idx] = pud_dma | IVPU_MMU_ENTRY_VALID;
+
+	return pud_dma_ptr;
+
+err_free_pmd_ptrs:
+	kfree(pgtable->pmd_ptrs[pgd_idx]);
+
+err_free_pud_dma_ptr:
+	ivpu_pgtable_free_page(vdev, pud_dma_ptr, pud_dma);
+	return NULL;
+}
+
+static u64*
+ivpu_mmu_ensure_pmd(struct ivpu_device *vdev, struct ivpu_mmu_pgtable *pgtable, int pgd_idx,
+		    int pud_idx)
+{
+	u64 *pmd_dma_ptr = pgtable->pmd_ptrs[pgd_idx][pud_idx];
+	dma_addr_t pmd_dma;
+
+	if (pmd_dma_ptr)
+		return pmd_dma_ptr;
+
+	pmd_dma_ptr = ivpu_pgtable_alloc_page(vdev, &pmd_dma);
+	if (!pmd_dma_ptr)
+		return NULL;
+
+	drm_WARN_ON(&vdev->drm, pgtable->pte_ptrs[pgd_idx][pud_idx]);
+	pgtable->pte_ptrs[pgd_idx][pud_idx] = kzalloc(IVPU_MMU_PGTABLE_SIZE, GFP_KERNEL);
+	if (!pgtable->pte_ptrs[pgd_idx][pud_idx])
+		goto err_free_pmd_dma_ptr;
+
+	pgtable->pmd_ptrs[pgd_idx][pud_idx] = pmd_dma_ptr;
+	pgtable->pud_ptrs[pgd_idx][pud_idx] = pmd_dma | IVPU_MMU_ENTRY_VALID;
+
+	return pmd_dma_ptr;
+
+err_free_pmd_dma_ptr:
+	ivpu_pgtable_free_page(vdev, pmd_dma_ptr, pmd_dma);
+	return NULL;
+}
+
+static u64*
+ivpu_mmu_ensure_pte(struct ivpu_device *vdev, struct ivpu_mmu_pgtable *pgtable,
+		    int pgd_idx, int pud_idx, int pmd_idx)
+{
+	u64 *pte_dma_ptr = pgtable->pte_ptrs[pgd_idx][pud_idx][pmd_idx];
+	dma_addr_t pte_dma;
+
+	if (pte_dma_ptr)
+		return pte_dma_ptr;
+
+	pte_dma_ptr = ivpu_pgtable_alloc_page(vdev, &pte_dma);
+	if (!pte_dma_ptr)
+		return NULL;
+
+	pgtable->pte_ptrs[pgd_idx][pud_idx][pmd_idx] = pte_dma_ptr;
+	pgtable->pmd_ptrs[pgd_idx][pud_idx][pmd_idx] = pte_dma | IVPU_MMU_ENTRY_VALID;
+
+	return pte_dma_ptr;
+}
+
+static int
+ivpu_mmu_context_map_page(struct ivpu_device *vdev, struct ivpu_mmu_context *ctx,
+			  u64 vpu_addr, dma_addr_t dma_addr, u64 prot)
+{
+	u64 *pte;
+	int pgd_idx = FIELD_GET(IVPU_MMU_PGD_INDEX_MASK, vpu_addr);
+	int pud_idx = FIELD_GET(IVPU_MMU_PUD_INDEX_MASK, vpu_addr);
+	int pmd_idx = FIELD_GET(IVPU_MMU_PMD_INDEX_MASK, vpu_addr);
+	int pte_idx = FIELD_GET(IVPU_MMU_PTE_INDEX_MASK, vpu_addr);
+
+	drm_WARN_ON(&vdev->drm, ctx->id == IVPU_RESERVED_CONTEXT_MMU_SSID);
+
+	/* Allocate PGD - first level page table if needed */
+	if (!ivpu_mmu_ensure_pgd(vdev, &ctx->pgtable))
+		return -ENOMEM;
+
+	/* Allocate PUD - second level page table if needed */
+	if (!ivpu_mmu_ensure_pud(vdev, &ctx->pgtable, pgd_idx))
+		return -ENOMEM;
+
+	/* Allocate PMD - third level page table if needed */
+	if (!ivpu_mmu_ensure_pmd(vdev, &ctx->pgtable, pgd_idx, pud_idx))
+		return -ENOMEM;
+
+	/* Allocate PTE - fourth level page table if needed */
+	pte = ivpu_mmu_ensure_pte(vdev, &ctx->pgtable, pgd_idx, pud_idx, pmd_idx);
+	if (!pte)
+		return -ENOMEM;
+
+	/* Update PTE */
+	pte[pte_idx] = dma_addr | prot;
+
+	return 0;
+}
+
+static int
+ivpu_mmu_context_map_cont_64k(struct ivpu_device *vdev, struct ivpu_mmu_context *ctx, u64 vpu_addr,
+			      dma_addr_t dma_addr, u64 prot)
+{
+	size_t size = IVPU_MMU_CONT_PAGES_SIZE;
+
+	drm_WARN_ON(&vdev->drm, !IS_ALIGNED(vpu_addr, size));
+	drm_WARN_ON(&vdev->drm, !IS_ALIGNED(dma_addr, size));
+
+	prot |= IVPU_MMU_ENTRY_FLAG_CONT;
+
+	while (size) {
+		int ret = ivpu_mmu_context_map_page(vdev, ctx, vpu_addr, dma_addr, prot);
+
+		if (ret)
+			return ret;
+
+		size -= IVPU_MMU_PAGE_SIZE;
+		vpu_addr += IVPU_MMU_PAGE_SIZE;
+		dma_addr += IVPU_MMU_PAGE_SIZE;
+	}
+
+	return 0;
+}
+
+static void ivpu_mmu_context_unmap_page(struct ivpu_mmu_context *ctx, u64 vpu_addr)
+{
+	int pgd_idx = FIELD_GET(IVPU_MMU_PGD_INDEX_MASK, vpu_addr);
+	int pud_idx = FIELD_GET(IVPU_MMU_PUD_INDEX_MASK, vpu_addr);
+	int pmd_idx = FIELD_GET(IVPU_MMU_PMD_INDEX_MASK, vpu_addr);
+	int pte_idx = FIELD_GET(IVPU_MMU_PTE_INDEX_MASK, vpu_addr);
+
+	/* Update PTE with dummy physical address and clear flags */
+	ctx->pgtable.pte_ptrs[pgd_idx][pud_idx][pmd_idx][pte_idx] = IVPU_MMU_ENTRY_INVALID;
+}
+
+static int
+ivpu_mmu_context_map_pages(struct ivpu_device *vdev, struct ivpu_mmu_context *ctx,
+			   u64 vpu_addr, dma_addr_t dma_addr, size_t size, u64 prot)
+{
+	int map_size;
+	int ret;
+
+	while (size) {
+		if (!ivpu_disable_mmu_cont_pages && size >= IVPU_MMU_CONT_PAGES_SIZE &&
+		    IS_ALIGNED(vpu_addr | dma_addr, IVPU_MMU_CONT_PAGES_SIZE)) {
+			ret = ivpu_mmu_context_map_cont_64k(vdev, ctx, vpu_addr, dma_addr, prot);
+			map_size = IVPU_MMU_CONT_PAGES_SIZE;
+		} else {
+			ret = ivpu_mmu_context_map_page(vdev, ctx, vpu_addr, dma_addr, prot);
+			map_size = IVPU_MMU_PAGE_SIZE;
+		}
+
+		if (ret)
+			return ret;
+
+		vpu_addr += map_size;
+		dma_addr += map_size;
+		size -= map_size;
+	}
+
+	return 0;
+}
+
+static void ivpu_mmu_context_set_page_ro(struct ivpu_device *vdev, struct ivpu_mmu_context *ctx,
+					 u64 vpu_addr)
+{
+	int pgd_idx = FIELD_GET(IVPU_MMU_PGD_INDEX_MASK, vpu_addr);
+	int pud_idx = FIELD_GET(IVPU_MMU_PUD_INDEX_MASK, vpu_addr);
+	int pmd_idx = FIELD_GET(IVPU_MMU_PMD_INDEX_MASK, vpu_addr);
+	int pte_idx = FIELD_GET(IVPU_MMU_PTE_INDEX_MASK, vpu_addr);
+
+	ctx->pgtable.pte_ptrs[pgd_idx][pud_idx][pmd_idx][pte_idx] |= IVPU_MMU_ENTRY_FLAG_RO;
+}
+
+static void ivpu_mmu_context_split_page(struct ivpu_device *vdev, struct ivpu_mmu_context *ctx,
+					u64 vpu_addr)
+{
+	int pgd_idx = FIELD_GET(IVPU_MMU_PGD_INDEX_MASK, vpu_addr);
+	int pud_idx = FIELD_GET(IVPU_MMU_PUD_INDEX_MASK, vpu_addr);
+	int pmd_idx = FIELD_GET(IVPU_MMU_PMD_INDEX_MASK, vpu_addr);
+	int pte_idx = FIELD_GET(IVPU_MMU_PTE_INDEX_MASK, vpu_addr);
+
+	ctx->pgtable.pte_ptrs[pgd_idx][pud_idx][pmd_idx][pte_idx] &= ~IVPU_MMU_ENTRY_FLAG_CONT;
+}
+
+static void ivpu_mmu_context_split_64k_page(struct ivpu_device *vdev, struct ivpu_mmu_context *ctx,
+					    u64 vpu_addr)
+{
+	u64 start = ALIGN_DOWN(vpu_addr, IVPU_MMU_CONT_PAGES_SIZE);
+	u64 end = ALIGN(vpu_addr, IVPU_MMU_CONT_PAGES_SIZE);
+	u64 offset = 0;
+
+	ivpu_dbg(vdev, MMU_MAP, "Split 64K page ctx: %u vpu_addr: 0x%llx\n", ctx->id, vpu_addr);
+
+	while (start + offset < end) {
+		ivpu_mmu_context_split_page(vdev, ctx, start + offset);
+		offset += IVPU_MMU_PAGE_SIZE;
+	}
+}
+
+int
+ivpu_mmu_context_set_pages_ro(struct ivpu_device *vdev, struct ivpu_mmu_context *ctx, u64 vpu_addr,
+			      size_t size)
+{
+	u64 end = vpu_addr + size;
+	size_t size_left = size;
+	int ret;
+
+	if (size == 0)
+		return 0;
+
+	if (drm_WARN_ON(&vdev->drm, !IS_ALIGNED(vpu_addr | size, IVPU_MMU_PAGE_SIZE)))
+		return -EINVAL;
+
+	mutex_lock(&ctx->lock);
+
+	ivpu_dbg(vdev, MMU_MAP, "Set read-only pages ctx: %u vpu_addr: 0x%llx size: %lu\n",
+		 ctx->id, vpu_addr, size);
+
+	if (!ivpu_disable_mmu_cont_pages) {
+		/* Split 64K contiguous page at the beginning if needed */
+		if (!IS_ALIGNED(vpu_addr, IVPU_MMU_CONT_PAGES_SIZE))
+			ivpu_mmu_context_split_64k_page(vdev, ctx, vpu_addr);
+
+		/* Split 64K contiguous page at the end if needed */
+		if (!IS_ALIGNED(vpu_addr + size, IVPU_MMU_CONT_PAGES_SIZE))
+			ivpu_mmu_context_split_64k_page(vdev, ctx, vpu_addr + size);
+	}
+
+	while (size_left) {
+		if (vpu_addr < end)
+			ivpu_mmu_context_set_page_ro(vdev, ctx, vpu_addr);
+
+		vpu_addr += IVPU_MMU_PAGE_SIZE;
+		size_left -= IVPU_MMU_PAGE_SIZE;
+	}
+
+	/* Ensure page table modifications are flushed from wc buffers to memory */
+	wmb();
+
+	mutex_unlock(&ctx->lock);
+	ret = ivpu_mmu_invalidate_tlb(vdev, ctx->id);
+	if (ret)
+		ivpu_err(vdev, "Failed to invalidate TLB for ctx %u: %d\n", ctx->id, ret);
+
+	return 0;
+}
+
+static void ivpu_mmu_context_unmap_pages(struct ivpu_mmu_context *ctx, u64 vpu_addr, size_t size)
+{
+	while (size) {
+		ivpu_mmu_context_unmap_page(ctx, vpu_addr);
+		vpu_addr += IVPU_MMU_PAGE_SIZE;
+		size -= IVPU_MMU_PAGE_SIZE;
+	}
+}
+
+int
+ivpu_mmu_context_map_sgt(struct ivpu_device *vdev, struct ivpu_mmu_context *ctx, u64 vpu_addr,
+			 struct sg_table *sgt, size_t bo_size, bool llc_coherent, bool read_only)
+{
+	size_t start_vpu_addr = vpu_addr;
+	struct scatterlist *sg;
+	size_t sgt_size = 0;
+	int ret;
+	u64 prot;
+	u64 i;
+
+	if (drm_WARN_ON(&vdev->drm, !ctx))
+		return -EINVAL;
+
+	if (!IS_ALIGNED(vpu_addr, IVPU_MMU_PAGE_SIZE))
+		return -EINVAL;
+
+	if (vpu_addr & ~IVPU_MMU_VPU_ADDRESS_MASK)
+		return -EINVAL;
+
+	prot = IVPU_MMU_ENTRY_MAPPED;
+	if (llc_coherent)
+		prot |= IVPU_MMU_ENTRY_FLAG_LLC_COHERENT;
+	if (read_only)
+		prot |= IVPU_MMU_ENTRY_FLAG_RO;
+
+	mutex_lock(&ctx->lock);
+
+	for_each_sgtable_dma_sg(sgt, sg, i) {
+		dma_addr_t dma_addr = sg_dma_address(sg) - sg->offset;
+		size_t size = sg_dma_len(sg) + sg->offset;
+
+		ivpu_dbg(vdev, MMU_MAP, "Map ctx: %u dma_addr: 0x%llx vpu_addr: 0x%llx size: %lu\n",
+			 ctx->id, dma_addr, vpu_addr, size);
+
+		if (sgt_size + size > bo_size) {
+			ivpu_err(vdev, "Scatter-gather table size exceeds buffer object size\n");
+			ret = -EINVAL;
+			goto err_unmap_pages;
+		}
+
+		ret = ivpu_mmu_context_map_pages(vdev, ctx, vpu_addr, dma_addr, size, prot);
+		if (ret) {
+			ivpu_err(vdev, "Failed to map context pages\n");
+			goto err_unmap_pages;
+		}
+		vpu_addr += size;
+		sgt_size += size;
+	}
+
+	if (sgt_size < bo_size) {
+		ivpu_err(vdev, "Scatter-gather table size too small to cover buffer object size\n");
+		ret = -EINVAL;
+		goto err_unmap_pages;
+	}
+
+	if (!ctx->is_cd_valid) {
+		ret = ivpu_mmu_cd_set(vdev, ctx->id, &ctx->pgtable);
+		if (ret) {
+			ivpu_err(vdev, "Failed to set context descriptor for context %u: %d\n",
+				 ctx->id, ret);
+			goto err_unmap_pages;
+		}
+		ctx->is_cd_valid = true;
+	}
+
+	/* Ensure page table modifications are flushed from wc buffers to memory */
+	wmb();
+
+	ret = ivpu_mmu_invalidate_tlb(vdev, ctx->id);
+	if (ret) {
+		ivpu_err(vdev, "Failed to invalidate TLB for ctx %u: %d\n", ctx->id, ret);
+		goto err_unmap_pages;
+	}
+
+	mutex_unlock(&ctx->lock);
+	return 0;
+
+err_unmap_pages:
+	ivpu_mmu_context_unmap_pages(ctx, start_vpu_addr, sgt_size);
+	mutex_unlock(&ctx->lock);
+	return ret;
+}
+
+void
+ivpu_mmu_context_unmap_sgt(struct ivpu_device *vdev, struct ivpu_mmu_context *ctx,
+			   u64 vpu_addr, struct sg_table *sgt)
+{
+	struct scatterlist *sg;
+	int ret;
+	u64 i;
+
+	if (drm_WARN_ON(&vdev->drm, !ctx))
+		return;
+
+	mutex_lock(&ctx->lock);
+
+	for_each_sgtable_dma_sg(sgt, sg, i) {
+		dma_addr_t dma_addr = sg_dma_address(sg) - sg->offset;
+		size_t size = sg_dma_len(sg) + sg->offset;
+
+		ivpu_dbg(vdev, MMU_MAP, "Unmap ctx: %u dma_addr: 0x%llx vpu_addr: 0x%llx size: %lu\n",
+			 ctx->id, dma_addr, vpu_addr, size);
+
+		ivpu_mmu_context_unmap_pages(ctx, vpu_addr, size);
+		vpu_addr += size;
+	}
+
+	/* Ensure page table modifications are flushed from wc buffers to memory */
+	wmb();
+
+	mutex_unlock(&ctx->lock);
+
+	ret = ivpu_mmu_invalidate_tlb(vdev, ctx->id);
+	if (ret)
+		ivpu_warn_ratelimited(vdev, "Failed to invalidate TLB for ctx %u: %d\n",
+				      ctx->id, ret);
+}
+
+int
+ivpu_mmu_context_insert_node(struct ivpu_mmu_context *ctx, const struct ivpu_addr_range *range,
+			     u64 size, struct drm_mm_node *node)
+{
+	int ret;
+
+	WARN_ON(!range);
+
+	mutex_lock(&ctx->lock);
+	if (!ivpu_disable_mmu_cont_pages && size >= IVPU_MMU_CONT_PAGES_SIZE) {
+		ret = drm_mm_insert_node_in_range(&ctx->mm, node, size, IVPU_MMU_CONT_PAGES_SIZE, 0,
+						  range->start, range->end, DRM_MM_INSERT_BEST);
+		if (!ret)
+			goto unlock;
+	}
+
+	ret = drm_mm_insert_node_in_range(&ctx->mm, node, size, IVPU_MMU_PAGE_SIZE, 0,
+					  range->start, range->end, DRM_MM_INSERT_BEST);
+unlock:
+	mutex_unlock(&ctx->lock);
+	return ret;
+}
+
+void
+ivpu_mmu_context_remove_node(struct ivpu_mmu_context *ctx, struct drm_mm_node *node)
+{
+	mutex_lock(&ctx->lock);
+	drm_mm_remove_node(node);
+	mutex_unlock(&ctx->lock);
+}
+
+void ivpu_mmu_context_init(struct ivpu_device *vdev, struct ivpu_mmu_context *ctx, u32 context_id)
+{
+	u64 start, end;
+
+	mutex_init(&ctx->lock);
+
+	if (!context_id) {
+		start = vdev->hw->ranges.runtime.start;
+		end = vdev->hw->ranges.shave.end;
+	} else {
+		start = min_t(u64, vdev->hw->ranges.user.start, vdev->hw->ranges.shave.start);
+		end = max_t(u64, vdev->hw->ranges.user.end, vdev->hw->ranges.dma.end);
+	}
+
+	drm_mm_init(&ctx->mm, start, end - start);
+	ctx->id = context_id;
+}
+
+void ivpu_mmu_context_fini(struct ivpu_device *vdev, struct ivpu_mmu_context *ctx)
+{
+	if (ctx->is_cd_valid) {
+		ivpu_mmu_cd_clear(vdev, ctx->id);
+		ctx->is_cd_valid = false;
+	}
+
+	mutex_destroy(&ctx->lock);
+	ivpu_mmu_pgtables_free(vdev, &ctx->pgtable);
+	drm_mm_takedown(&ctx->mm);
+}
+
+void ivpu_mmu_global_context_init(struct ivpu_device *vdev)
+{
+	ivpu_mmu_context_init(vdev, &vdev->gctx, IVPU_GLOBAL_CONTEXT_MMU_SSID);
+}
+
+void ivpu_mmu_global_context_fini(struct ivpu_device *vdev)
+{
+	ivpu_mmu_context_fini(vdev, &vdev->gctx);
+}
+
+int ivpu_mmu_reserved_context_init(struct ivpu_device *vdev)
+{
+	int ret;
+
+	ivpu_mmu_context_init(vdev, &vdev->rctx, IVPU_RESERVED_CONTEXT_MMU_SSID);
+
+	mutex_lock(&vdev->rctx.lock);
+
+	if (!ivpu_mmu_ensure_pgd(vdev, &vdev->rctx.pgtable)) {
+		ivpu_err(vdev, "Failed to allocate root page table for reserved context\n");
+		ret = -ENOMEM;
+		goto err_ctx_fini;
+	}
+
+	ret = ivpu_mmu_cd_set(vdev, vdev->rctx.id, &vdev->rctx.pgtable);
+	if (ret) {
+		ivpu_err(vdev, "Failed to set context descriptor for reserved context\n");
+		goto err_ctx_fini;
+	}
+
+	mutex_unlock(&vdev->rctx.lock);
+	return ret;
+
+err_ctx_fini:
+	mutex_unlock(&vdev->rctx.lock);
+	ivpu_mmu_context_fini(vdev, &vdev->rctx);
+	return ret;
+}
+
+void ivpu_mmu_reserved_context_fini(struct ivpu_device *vdev)
+{
+	ivpu_mmu_cd_clear(vdev, vdev->rctx.id);
+	ivpu_mmu_context_fini(vdev, &vdev->rctx);
+}

linux-7.2.3/drivers/accel/ivpu/ivpu_mmu_context.h

@@ -0,0 +1,52 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2020-2023 Intel Corporation
+ */
+
+#ifndef __IVPU_MMU_CONTEXT_H__
+#define __IVPU_MMU_CONTEXT_H__
+
+#include <drm/drm_mm.h>
+
+struct ivpu_device;
+struct ivpu_file_priv;
+struct ivpu_addr_range;
+
+#define IVPU_MMU_PGTABLE_ENTRIES	512ull
+
+struct ivpu_mmu_pgtable {
+	u64		***pte_ptrs[IVPU_MMU_PGTABLE_ENTRIES];
+	u64		**pmd_ptrs[IVPU_MMU_PGTABLE_ENTRIES];
+	u64		*pud_ptrs[IVPU_MMU_PGTABLE_ENTRIES];
+	u64		*pgd_dma_ptr;
+	dma_addr_t	pgd_dma;
+};
+
+struct ivpu_mmu_context {
+	struct mutex lock; /* Protects: mm, pgtable, is_cd_valid */
+	struct drm_mm mm;
+	struct ivpu_mmu_pgtable pgtable;
+	bool is_cd_valid;
+	u32 id;
+};
+
+void ivpu_mmu_context_init(struct ivpu_device *vdev, struct ivpu_mmu_context *ctx, u32 context_id);
+void ivpu_mmu_context_fini(struct ivpu_device *vdev, struct ivpu_mmu_context *ctx);
+void ivpu_mmu_global_context_init(struct ivpu_device *vdev);
+void ivpu_mmu_global_context_fini(struct ivpu_device *vdev);
+int ivpu_mmu_reserved_context_init(struct ivpu_device *vdev);
+void ivpu_mmu_reserved_context_fini(struct ivpu_device *vdev);
+
+int ivpu_mmu_context_insert_node(struct ivpu_mmu_context *ctx, const struct ivpu_addr_range *range,
+				 u64 size, struct drm_mm_node *node);
+void ivpu_mmu_context_remove_node(struct ivpu_mmu_context *ctx, struct drm_mm_node *node);
+
+int
+ivpu_mmu_context_map_sgt(struct ivpu_device *vdev, struct ivpu_mmu_context *ctx, u64 vpu_addr,
+			 struct sg_table *sgt, size_t bo_size, bool llc_coherent, bool read_only);
+void ivpu_mmu_context_unmap_sgt(struct ivpu_device *vdev, struct ivpu_mmu_context *ctx,
+				u64 vpu_addr, struct sg_table *sgt);
+int ivpu_mmu_context_set_pages_ro(struct ivpu_device *vdev, struct ivpu_mmu_context *ctx,
+				  u64 vpu_addr, size_t size);
+
+#endif /* __IVPU_MMU_CONTEXT_H__ */

linux-7.2.3/drivers/accel/ivpu/ivpu_ms.c

@@ -0,0 +1,349 @@
+// SPDX-License-Identifier: GPL-2.0-only OR MIT
+/*
+ * Copyright (C) 2020-2024 Intel Corporation
+ */
+
+#include <drm/drm_file.h>
+#include <linux/pm_runtime.h>
+
+#include "ivpu_drv.h"
+#include "ivpu_gem.h"
+#include "ivpu_hw.h"
+#include "ivpu_jsm_msg.h"
+#include "ivpu_ms.h"
+#include "ivpu_pm.h"
+
+#define MS_INFO_BUFFER_SIZE	  SZ_64K
+#define MS_NUM_BUFFERS		  2
+#define MS_READ_PERIOD_MULTIPLIER 2
+#define MS_MIN_SAMPLE_PERIOD_NS   1000000
+
+static struct ivpu_ms_instance *
+get_instance_by_mask(struct ivpu_file_priv *file_priv, u64 metric_mask)
+{
+	struct ivpu_ms_instance *ms;
+
+	lockdep_assert_held(&file_priv->ms_lock);
+
+	list_for_each_entry(ms, &file_priv->ms_instance_list, ms_instance_node)
+		if (ms->mask == metric_mask)
+			return ms;
+
+	return NULL;
+}
+
+int ivpu_ms_start_ioctl(struct drm_device *dev, void *data, struct drm_file *file)
+{
+	struct ivpu_file_priv *file_priv = file->driver_priv;
+	struct drm_ivpu_metric_streamer_start *args = data;
+	struct ivpu_device *vdev = file_priv->vdev;
+	struct ivpu_ms_instance *ms;
+	u32 sample_size;
+	u64 buf_size;
+	int ret;
+
+	if (!args->metric_group_mask || !args->read_period_samples ||
+	    args->sampling_period_ns < MS_MIN_SAMPLE_PERIOD_NS)
+		return -EINVAL;
+
+	ret = ivpu_rpm_get(vdev);
+	if (ret < 0)
+		return ret;
+
+	mutex_lock(&file_priv->ms_lock);
+
+	if (get_instance_by_mask(file_priv, args->metric_group_mask)) {
+		ivpu_dbg(vdev, IOCTL, "Instance already exists (mask %#llx)\n",
+			 args->metric_group_mask);
+		ret = -EALREADY;
+		goto unlock;
+	}
+
+	ms = kzalloc_obj(*ms);
+	if (!ms) {
+		ret = -ENOMEM;
+		goto unlock;
+	}
+
+	ms->mask = args->metric_group_mask;
+
+	ret = ivpu_jsm_metric_streamer_info(vdev, ms->mask, 0, 0, &sample_size, NULL);
+	if (ret)
+		goto err_free_ms;
+
+	buf_size = PAGE_ALIGN((u64)args->read_period_samples * sample_size *
+			      MS_READ_PERIOD_MULTIPLIER * MS_NUM_BUFFERS);
+	if (buf_size > ivpu_hw_range_size(&vdev->hw->ranges.global)) {
+		ivpu_dbg(vdev, IOCTL, "Requested MS buffer size %llu exceeds range size %llu\n",
+			 buf_size, ivpu_hw_range_size(&vdev->hw->ranges.global));
+		ret = -EINVAL;
+		goto err_free_ms;
+	}
+
+	ms->bo = ivpu_bo_create_global(vdev, buf_size, DRM_IVPU_BO_CACHED | DRM_IVPU_BO_MAPPABLE);
+	if (!ms->bo) {
+		ivpu_dbg(vdev, IOCTL, "Failed to allocate MS buffer (size %llu)\n", buf_size);
+		ret = -ENOMEM;
+		goto err_free_ms;
+	}
+
+	ms->buff_size = ivpu_bo_size(ms->bo) / MS_NUM_BUFFERS;
+	ms->active_buff_vpu_addr = ms->bo->vpu_addr;
+	ms->inactive_buff_vpu_addr = ms->bo->vpu_addr + ms->buff_size;
+	ms->active_buff_ptr = ivpu_bo_vaddr(ms->bo);
+	ms->inactive_buff_ptr = ivpu_bo_vaddr(ms->bo) + ms->buff_size;
+
+	ret = ivpu_jsm_metric_streamer_start(vdev, ms->mask, args->sampling_period_ns,
+					     ms->active_buff_vpu_addr, ms->buff_size);
+	if (ret)
+		goto err_free_bo;
+
+	args->sample_size = sample_size;
+	args->max_data_size = ivpu_bo_size(ms->bo);
+	list_add_tail(&ms->ms_instance_node, &file_priv->ms_instance_list);
+	goto unlock;
+
+err_free_bo:
+	ivpu_bo_free(ms->bo);
+err_free_ms:
+	kfree(ms);
+unlock:
+	mutex_unlock(&file_priv->ms_lock);
+
+	ivpu_rpm_put(vdev);
+	return ret;
+}
+
+static int
+copy_leftover_bytes(struct ivpu_ms_instance *ms,
+		    void __user *user_ptr, u64 user_size, u64 *user_bytes_copied)
+{
+	u64 copy_bytes;
+
+	if (ms->leftover_bytes) {
+		copy_bytes = min(user_size - *user_bytes_copied, ms->leftover_bytes);
+		if (copy_to_user(user_ptr + *user_bytes_copied, ms->leftover_addr, copy_bytes))
+			return -EFAULT;
+
+		ms->leftover_bytes -= copy_bytes;
+		ms->leftover_addr += copy_bytes;
+		*user_bytes_copied += copy_bytes;
+	}
+
+	return 0;
+}
+
+static int
+copy_samples_to_user(struct ivpu_device *vdev, struct ivpu_ms_instance *ms,
+		     void __user *user_ptr, u64 user_size, u64 *user_bytes_copied)
+{
+	u64 bytes_written;
+	int ret;
+
+	*user_bytes_copied = 0;
+
+	ret = copy_leftover_bytes(ms, user_ptr, user_size, user_bytes_copied);
+	if (ret)
+		return ret;
+
+	if (*user_bytes_copied == user_size)
+		return 0;
+
+	ret = ivpu_jsm_metric_streamer_update(vdev, ms->mask, ms->inactive_buff_vpu_addr,
+					      ms->buff_size, &bytes_written);
+	if (ret)
+		return ret;
+
+	swap(ms->active_buff_vpu_addr, ms->inactive_buff_vpu_addr);
+	swap(ms->active_buff_ptr, ms->inactive_buff_ptr);
+
+	ms->leftover_bytes = bytes_written;
+	ms->leftover_addr = ms->inactive_buff_ptr;
+
+	return copy_leftover_bytes(ms, user_ptr, user_size, user_bytes_copied);
+}
+
+int ivpu_ms_get_data_ioctl(struct drm_device *dev, void *data, struct drm_file *file)
+{
+	struct drm_ivpu_metric_streamer_get_data *args = data;
+	struct ivpu_file_priv *file_priv = file->driver_priv;
+	struct ivpu_device *vdev = file_priv->vdev;
+	struct ivpu_ms_instance *ms;
+	u64 bytes_written;
+	int ret;
+
+	if (!args->metric_group_mask)
+		return -EINVAL;
+
+	ret = ivpu_rpm_get(vdev);
+	if (ret < 0)
+		return ret;
+
+	mutex_lock(&file_priv->ms_lock);
+
+	ms = get_instance_by_mask(file_priv, args->metric_group_mask);
+	if (!ms) {
+		ivpu_dbg(vdev, IOCTL, "Instance doesn't exist for mask: %#llx\n",
+			 args->metric_group_mask);
+		ret = -EINVAL;
+		goto unlock;
+	}
+
+	if (!args->buffer_size) {
+		ret = ivpu_jsm_metric_streamer_update(vdev, ms->mask, 0, 0, &bytes_written);
+		if (ret)
+			goto unlock;
+		args->data_size = bytes_written + ms->leftover_bytes;
+		goto unlock;
+	}
+
+	if (!args->buffer_ptr) {
+		ret = -EINVAL;
+		goto unlock;
+	}
+
+	ret = copy_samples_to_user(vdev, ms, u64_to_user_ptr(args->buffer_ptr),
+				   args->buffer_size, &args->data_size);
+unlock:
+	mutex_unlock(&file_priv->ms_lock);
+
+	ivpu_rpm_put(vdev);
+	return ret;
+}
+
+static void free_instance(struct ivpu_file_priv *file_priv, struct ivpu_ms_instance *ms)
+{
+	lockdep_assert_held(&file_priv->ms_lock);
+
+	list_del(&ms->ms_instance_node);
+	ivpu_jsm_metric_streamer_stop(file_priv->vdev, ms->mask);
+	ivpu_bo_free(ms->bo);
+	kfree(ms);
+}
+
+int ivpu_ms_stop_ioctl(struct drm_device *dev, void *data, struct drm_file *file)
+{
+	struct ivpu_file_priv *file_priv = file->driver_priv;
+	struct drm_ivpu_metric_streamer_stop *args = data;
+	struct ivpu_device *vdev = file_priv->vdev;
+	struct ivpu_ms_instance *ms;
+	int ret;
+
+	if (!args->metric_group_mask)
+		return -EINVAL;
+
+	ret = ivpu_rpm_get(vdev);
+	if (ret < 0)
+		return ret;
+
+	mutex_lock(&file_priv->ms_lock);
+
+	ms = get_instance_by_mask(file_priv, args->metric_group_mask);
+	if (ms)
+		free_instance(file_priv, ms);
+
+	mutex_unlock(&file_priv->ms_lock);
+
+	ivpu_rpm_put(vdev);
+	return ms ? 0 : -EINVAL;
+}
+
+static inline struct ivpu_bo *get_ms_info_bo(struct ivpu_file_priv *file_priv)
+{
+	lockdep_assert_held(&file_priv->ms_lock);
+
+	if (file_priv->ms_info_bo)
+		return file_priv->ms_info_bo;
+
+	file_priv->ms_info_bo = ivpu_bo_create_global(file_priv->vdev, MS_INFO_BUFFER_SIZE,
+						      DRM_IVPU_BO_CACHED | DRM_IVPU_BO_MAPPABLE);
+	return file_priv->ms_info_bo;
+}
+
+int ivpu_ms_get_info_ioctl(struct drm_device *dev, void *data, struct drm_file *file)
+{
+	struct drm_ivpu_metric_streamer_get_data *args = data;
+	struct ivpu_file_priv *file_priv = file->driver_priv;
+	struct ivpu_device *vdev = file_priv->vdev;
+	struct ivpu_bo *bo;
+	u64 info_size;
+	int ret;
+
+	if (!args->metric_group_mask)
+		return -EINVAL;
+
+	if (!args->buffer_size)
+		return ivpu_jsm_metric_streamer_info(vdev, args->metric_group_mask,
+						     0, 0, NULL, &args->data_size);
+	if (!args->buffer_ptr)
+		return -EINVAL;
+
+	mutex_lock(&file_priv->ms_lock);
+
+	bo = get_ms_info_bo(file_priv);
+	if (!bo) {
+		ret = -ENOMEM;
+		goto unlock;
+	}
+
+	ret = ivpu_jsm_metric_streamer_info(vdev, args->metric_group_mask, bo->vpu_addr,
+					    ivpu_bo_size(bo), NULL, &info_size);
+	if (ret)
+		goto unlock;
+
+	if (info_size > ivpu_bo_size(bo)) {
+		ivpu_warn_ratelimited(vdev, "MS info overflow: %#llx > %#zx\n",
+				      info_size, ivpu_bo_size(bo));
+		ret = -EOVERFLOW;
+		goto unlock;
+	}
+
+	if (args->buffer_size < info_size) {
+		ret = -ENOSPC;
+		goto unlock;
+	}
+
+	if (copy_to_user(u64_to_user_ptr(args->buffer_ptr), ivpu_bo_vaddr(bo), info_size))
+		ret = -EFAULT;
+
+	args->data_size = info_size;
+unlock:
+	mutex_unlock(&file_priv->ms_lock);
+
+	return ret;
+}
+
+void ivpu_ms_cleanup(struct ivpu_file_priv *file_priv)
+{
+	struct ivpu_ms_instance *ms, *tmp;
+	struct ivpu_device *vdev = file_priv->vdev;
+
+	pm_runtime_get_sync(vdev->drm.dev);
+
+	mutex_lock(&file_priv->ms_lock);
+
+	if (file_priv->ms_info_bo) {
+		ivpu_bo_free(file_priv->ms_info_bo);
+		file_priv->ms_info_bo = NULL;
+	}
+
+	list_for_each_entry_safe(ms, tmp, &file_priv->ms_instance_list, ms_instance_node)
+		free_instance(file_priv, ms);
+
+	mutex_unlock(&file_priv->ms_lock);
+
+	pm_runtime_put_autosuspend(vdev->drm.dev);
+}
+
+void ivpu_ms_cleanup_all(struct ivpu_device *vdev)
+{
+	struct ivpu_file_priv *file_priv;
+	unsigned long ctx_id;
+
+	mutex_lock(&vdev->context_list_lock);
+
+	xa_for_each(&vdev->context_xa, ctx_id, file_priv)
+		ivpu_ms_cleanup(file_priv);
+
+	mutex_unlock(&vdev->context_list_lock);
+}

linux-7.2.3/drivers/accel/ivpu/ivpu_ms.h

@@ -0,0 +1,36 @@
+/* SPDX-License-Identifier: GPL-2.0-only OR MIT */
+/*
+ * Copyright (C) 2020-2024 Intel Corporation
+ */
+#ifndef __IVPU_MS_H__
+#define __IVPU_MS_H__
+
+#include <linux/list.h>
+
+struct drm_device;
+struct drm_file;
+struct ivpu_bo;
+struct ivpu_device;
+struct ivpu_file_priv;
+
+struct ivpu_ms_instance {
+	struct ivpu_bo *bo;
+	struct list_head ms_instance_node;
+	u64 mask;
+	u64 buff_size;
+	u64 active_buff_vpu_addr;
+	u64 inactive_buff_vpu_addr;
+	void *active_buff_ptr;
+	void *inactive_buff_ptr;
+	u64 leftover_bytes;
+	void *leftover_addr;
+};
+
+int ivpu_ms_start_ioctl(struct drm_device *dev, void *data, struct drm_file *file);
+int ivpu_ms_stop_ioctl(struct drm_device *dev, void *data, struct drm_file *file);
+int ivpu_ms_get_data_ioctl(struct drm_device *dev, void *data, struct drm_file *file);
+int ivpu_ms_get_info_ioctl(struct drm_device *dev, void *data, struct drm_file *file);
+void ivpu_ms_cleanup(struct ivpu_file_priv *file_priv);
+void ivpu_ms_cleanup_all(struct ivpu_device *vdev);
+
+#endif /* __IVPU_MS_H__ */

linux-7.2.3/drivers/accel/ivpu/ivpu_pm.c

@@ -0,0 +1,523 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2020-2026 Intel Corporation
+ */
+
+#include <linux/highmem.h>
+#include <linux/moduleparam.h>
+#include <linux/pci.h>
+#include <linux/pm_runtime.h>
+#include <linux/reboot.h>
+
+#include "ivpu_coredump.h"
+#include "ivpu_drv.h"
+#include "ivpu_fw.h"
+#include "ivpu_fw_log.h"
+#include "ivpu_hw.h"
+#include "ivpu_ipc.h"
+#include "ivpu_job.h"
+#include "ivpu_jsm_msg.h"
+#include "ivpu_mmu.h"
+#include "ivpu_ms.h"
+#include "ivpu_pm.h"
+#include "ivpu_trace.h"
+#include "vpu_boot_api.h"
+
+static bool ivpu_disable_recovery;
+#if IS_ENABLED(CONFIG_DRM_ACCEL_IVPU_DEBUG)
+module_param_named_unsafe(disable_recovery, ivpu_disable_recovery, bool, 0644);
+MODULE_PARM_DESC(disable_recovery, "Disables recovery when NPU hang is detected");
+#endif
+
+static unsigned long ivpu_tdr_timeout_ms;
+module_param_named(tdr_timeout_ms, ivpu_tdr_timeout_ms, ulong, 0644);
+MODULE_PARM_DESC(tdr_timeout_ms, "Timeout for device hang detection, in milliseconds, 0 - default");
+
+static unsigned long ivpu_inference_timeout_ms;
+module_param_named(inference_timeout_ms, ivpu_inference_timeout_ms, ulong, 0644);
+MODULE_PARM_DESC(inference_timeout_ms, "Inference maximum duration, in milliseconds, 0 - default");
+
+#define PM_RESCHEDULE_LIMIT     5
+
+static void ivpu_pm_prepare_cold_boot(struct ivpu_device *vdev)
+{
+	struct ivpu_fw_info *fw = vdev->fw;
+
+	ivpu_cmdq_reset_all_contexts(vdev);
+	ivpu_ipc_reset(vdev);
+	ivpu_fw_log_reset(vdev);
+	ivpu_fw_load(vdev);
+	fw->last_heartbeat = 0;
+
+	ivpu_dbg(vdev, FW_BOOT, "Cold boot entry point 0x%llx", vdev->fw->cold_boot_entry_point);
+	fw->next_boot_mode = VPU_BOOT_TYPE_COLDBOOT;
+}
+
+static void ivpu_pm_prepare_warm_boot(struct ivpu_device *vdev)
+{
+	struct ivpu_fw_info *fw = vdev->fw;
+	struct vpu_boot_params *bp = ivpu_bo_vaddr(fw->mem_bp);
+
+	fw->warm_boot_entry_point = bp->save_restore_ret_address;
+	if (!fw->warm_boot_entry_point) {
+		ivpu_pm_prepare_cold_boot(vdev);
+		return;
+	}
+
+	ivpu_dbg(vdev, FW_BOOT, "Warm boot entry point 0x%llx", fw->warm_boot_entry_point);
+	fw->next_boot_mode = VPU_BOOT_TYPE_WARMBOOT;
+}
+
+static int ivpu_suspend(struct ivpu_device *vdev)
+{
+	int ret;
+
+	ivpu_prepare_for_reset(vdev);
+
+	ret = ivpu_shutdown(vdev);
+	if (ret)
+		ivpu_err(vdev, "Failed to shutdown NPU: %d\n", ret);
+
+	return ret;
+}
+
+static int ivpu_resume(struct ivpu_device *vdev)
+{
+	int ret;
+
+retry:
+	pci_set_power_state(to_pci_dev(vdev->drm.dev), PCI_D0);
+	pci_restore_state(to_pci_dev(vdev->drm.dev));
+
+	ret = ivpu_hw_power_up(vdev);
+	if (ret) {
+		ivpu_err(vdev, "Failed to power up HW: %d\n", ret);
+		goto err_power_down;
+	}
+
+	ret = ivpu_mmu_enable(vdev);
+	if (ret) {
+		ivpu_err(vdev, "Failed to resume MMU: %d\n", ret);
+		goto err_power_down;
+	}
+
+	ret = ivpu_boot(vdev);
+	if (ret)
+		goto err_mmu_disable;
+
+	return 0;
+
+err_mmu_disable:
+	ivpu_mmu_disable(vdev);
+err_power_down:
+	ivpu_hw_power_down(vdev);
+	pci_set_power_state(to_pci_dev(vdev->drm.dev), PCI_D3hot);
+
+	if (ivpu_fw_is_warm_boot(vdev)) {
+		ivpu_pm_prepare_cold_boot(vdev);
+		goto retry;
+	} else {
+		ivpu_err(vdev, "Failed to resume the FW: %d\n", ret);
+	}
+
+	return ret;
+}
+
+static void ivpu_pm_reset_begin(struct ivpu_device *vdev)
+{
+	pm_runtime_disable(vdev->drm.dev);
+
+	atomic_inc(&vdev->pm->reset_counter);
+	atomic_set(&vdev->pm->reset_pending, 1);
+	down_write(&vdev->pm->reset_lock);
+}
+
+static void ivpu_pm_reset_complete(struct ivpu_device *vdev)
+{
+	int ret;
+
+	ivpu_pm_prepare_cold_boot(vdev);
+	ivpu_jobs_abort_all(vdev);
+	ivpu_ms_cleanup_all(vdev);
+
+	ret = ivpu_resume(vdev);
+	if (ret) {
+		ivpu_err(vdev, "Failed to resume NPU: %d\n", ret);
+		pm_runtime_set_suspended(vdev->drm.dev);
+	} else {
+		pm_runtime_set_active(vdev->drm.dev);
+	}
+
+	up_write(&vdev->pm->reset_lock);
+	atomic_set(&vdev->pm->reset_pending, 0);
+
+	pm_runtime_mark_last_busy(vdev->drm.dev);
+	pm_runtime_enable(vdev->drm.dev);
+}
+
+static void ivpu_pm_recovery_work(struct work_struct *work)
+{
+	struct ivpu_pm_info *pm = container_of(work, struct ivpu_pm_info, recovery_work);
+	struct ivpu_device *vdev = pm->vdev;
+	char *evt[2] = {"IVPU_PM_EVENT=IVPU_RECOVER", NULL};
+
+	ivpu_err(vdev, "Recovering the NPU (reset #%d)\n", atomic_read(&vdev->pm->reset_counter));
+
+	ivpu_pm_reset_begin(vdev);
+
+	if (!pm_runtime_status_suspended(vdev->drm.dev)) {
+		ivpu_jsm_state_dump_no_reply(vdev);
+		ivpu_dev_coredump(vdev);
+		ivpu_suspend(vdev);
+	}
+
+	ivpu_pm_reset_complete(vdev);
+
+	kobject_uevent_env(&vdev->drm.dev->kobj, KOBJ_CHANGE, evt);
+}
+
+void ivpu_pm_trigger_recovery(struct ivpu_device *vdev, const char *reason)
+{
+	ivpu_err(vdev, "Recovery triggered by %s\n", reason);
+
+	if (ivpu_disable_recovery) {
+		ivpu_err(vdev, "Recovery not available when disable_recovery param is set\n");
+		return;
+	}
+
+	/* Trigger recovery if it's not in progress */
+	if (atomic_cmpxchg(&vdev->pm->reset_pending, 0, 1) == 0) {
+		ivpu_hw_diagnose_failure(vdev);
+		ivpu_hw_irq_disable(vdev); /* Disable IRQ early to protect from IRQ storm */
+		queue_work(system_dfl_wq, &vdev->pm->recovery_work);
+	}
+}
+
+static void ivpu_job_timeout_work(struct work_struct *work)
+{
+	struct ivpu_pm_info *pm = container_of(work, struct ivpu_pm_info, job_timeout_work.work);
+	struct ivpu_device *vdev = pm->vdev;
+	unsigned long timeout_ms = ivpu_tdr_timeout_ms ? ivpu_tdr_timeout_ms : vdev->timeout.tdr;
+	unsigned long inference_timeout_ms = ivpu_inference_timeout_ms ? ivpu_inference_timeout_ms :
+					     vdev->timeout.inference;
+	u64 inference_max_retries;
+	u64 heartbeat;
+
+	if (ivpu_jsm_get_heartbeat(vdev, 0, &heartbeat) || heartbeat <= vdev->fw->last_heartbeat) {
+		ivpu_err(vdev, "Job timeout detected, heartbeat not progressed\n");
+		goto abort;
+	}
+
+	inference_max_retries = DIV_ROUND_UP(inference_timeout_ms, timeout_ms);
+	if (atomic_fetch_inc(&vdev->job_timeout_counter) >= inference_max_retries) {
+		ivpu_err(vdev, "Job timeout detected, heartbeat limit (%lld) exceeded\n",
+			 inference_max_retries);
+		goto abort;
+	}
+
+	vdev->fw->last_heartbeat = heartbeat;
+	ivpu_start_job_timeout_detection(vdev);
+	return;
+
+abort:
+	atomic_set(&vdev->job_timeout_counter, 0);
+
+	if (vdev->fw->sched_mode == VPU_SCHEDULING_MODE_OS) {
+		ivpu_pm_trigger_recovery(vdev, "Job timeout");
+		return;
+	}
+
+	ivpu_jsm_state_dump(vdev);
+	ivpu_dev_coredump(vdev);
+	queue_work(system_percpu_wq, &vdev->context_abort_work);
+}
+
+void ivpu_start_job_timeout_detection(struct ivpu_device *vdev)
+{
+	unsigned long timeout_ms = ivpu_tdr_timeout_ms ? ivpu_tdr_timeout_ms : vdev->timeout.tdr;
+
+	/* No-op if already queued */
+	queue_delayed_work(system_percpu_wq, &vdev->pm->job_timeout_work,
+			   msecs_to_jiffies(timeout_ms));
+}
+
+void ivpu_stop_job_timeout_detection(struct ivpu_device *vdev)
+{
+	cancel_delayed_work_sync(&vdev->pm->job_timeout_work);
+	atomic_set(&vdev->job_timeout_counter, 0);
+}
+
+int ivpu_pm_suspend_cb(struct device *dev)
+{
+	struct drm_device *drm = dev_get_drvdata(dev);
+	struct ivpu_device *vdev = to_ivpu_device(drm);
+	unsigned long timeout;
+
+	trace_pm("suspend");
+	ivpu_dbg(vdev, PM, "Suspend..\n");
+
+	timeout = jiffies + msecs_to_jiffies(vdev->timeout.tdr);
+	while (!ivpu_hw_is_idle(vdev)) {
+		cond_resched();
+		if (time_after_eq(jiffies, timeout)) {
+			ivpu_err(vdev, "Failed to enter idle on system suspend\n");
+			return -EBUSY;
+		}
+	}
+
+	ivpu_jsm_pwr_d0i3_enter(vdev);
+
+	ivpu_suspend(vdev);
+	ivpu_pm_prepare_warm_boot(vdev);
+
+	ivpu_dbg(vdev, PM, "Suspend done.\n");
+	trace_pm("suspend done");
+
+	return 0;
+}
+
+int ivpu_pm_resume_cb(struct device *dev)
+{
+	struct drm_device *drm = dev_get_drvdata(dev);
+	struct ivpu_device *vdev = to_ivpu_device(drm);
+	int ret;
+
+	trace_pm("resume");
+	ivpu_dbg(vdev, PM, "Resume..\n");
+
+	ret = ivpu_resume(vdev);
+	if (ret)
+		ivpu_err(vdev, "Failed to resume: %d\n", ret);
+
+	ivpu_dbg(vdev, PM, "Resume done.\n");
+	trace_pm("resume done");
+
+	return ret;
+}
+
+int ivpu_pm_runtime_suspend_cb(struct device *dev)
+{
+	struct drm_device *drm = dev_get_drvdata(dev);
+	struct ivpu_device *vdev = to_ivpu_device(drm);
+	int ret, ret_d0i3;
+	bool is_idle;
+
+	drm_WARN_ON(&vdev->drm, !xa_empty(&vdev->submitted_jobs_xa));
+	drm_WARN_ON(&vdev->drm, work_pending(&vdev->pm->recovery_work));
+
+	trace_pm("runtime suspend");
+	ivpu_dbg(vdev, PM, "Runtime suspend..\n");
+
+	ivpu_mmu_disable(vdev);
+
+	is_idle = ivpu_hw_is_idle(vdev) || vdev->pm->dct_active_percent;
+	if (!is_idle)
+		ivpu_err(vdev, "NPU is not idle before autosuspend\n");
+
+	ret_d0i3 = ivpu_jsm_pwr_d0i3_enter(vdev);
+	if (ret_d0i3)
+		ivpu_err(vdev, "Failed to prepare for d0i3: %d\n", ret_d0i3);
+
+	ret = ivpu_suspend(vdev);
+	if (ret)
+		ivpu_err(vdev, "Failed to suspend NPU: %d\n", ret);
+
+	if (!is_idle || ret_d0i3) {
+		ivpu_err(vdev, "Forcing cold boot due to previous errors\n");
+		atomic_inc(&vdev->pm->reset_counter);
+		ivpu_dev_coredump(vdev);
+		ivpu_pm_prepare_cold_boot(vdev);
+	} else {
+		ivpu_pm_prepare_warm_boot(vdev);
+	}
+
+	ivpu_dbg(vdev, PM, "Runtime suspend done.\n");
+	trace_pm("runtime suspend done");
+
+	return 0;
+}
+
+int ivpu_pm_runtime_resume_cb(struct device *dev)
+{
+	struct drm_device *drm = dev_get_drvdata(dev);
+	struct ivpu_device *vdev = to_ivpu_device(drm);
+	int ret;
+
+	trace_pm("runtime resume");
+	ivpu_dbg(vdev, PM, "Runtime resume..\n");
+
+	ret = ivpu_resume(vdev);
+	if (ret)
+		ivpu_err(vdev, "Failed to set RESUME state: %d\n", ret);
+
+	ivpu_dbg(vdev, PM, "Runtime resume done.\n");
+	trace_pm("runtime resume done");
+
+	return ret;
+}
+
+int ivpu_rpm_get(struct ivpu_device *vdev)
+{
+	int ret;
+
+	ret = pm_runtime_resume_and_get(vdev->drm.dev);
+	if (ret < 0) {
+		ivpu_err(vdev, "Failed to resume NPU: %d\n", ret);
+		pm_runtime_set_suspended(vdev->drm.dev);
+	}
+
+	return ret;
+}
+
+void ivpu_rpm_put(struct ivpu_device *vdev)
+{
+	pm_runtime_put_autosuspend(vdev->drm.dev);
+}
+
+void ivpu_pm_reset_prepare_cb(struct pci_dev *pdev)
+{
+	struct ivpu_device *vdev = pci_get_drvdata(pdev);
+
+	ivpu_dbg(vdev, PM, "Pre-reset..\n");
+
+	ivpu_pm_reset_begin(vdev);
+
+	if (!pm_runtime_status_suspended(vdev->drm.dev)) {
+		ivpu_prepare_for_reset(vdev);
+		ivpu_hw_reset(vdev);
+	}
+
+	ivpu_dbg(vdev, PM, "Pre-reset done.\n");
+}
+
+void ivpu_pm_reset_done_cb(struct pci_dev *pdev)
+{
+	struct ivpu_device *vdev = pci_get_drvdata(pdev);
+
+	ivpu_dbg(vdev, PM, "Post-reset..\n");
+
+	ivpu_pm_reset_complete(vdev);
+
+	ivpu_dbg(vdev, PM, "Post-reset done.\n");
+}
+
+void ivpu_pm_init(struct ivpu_device *vdev)
+{
+	struct device *dev = vdev->drm.dev;
+	struct ivpu_pm_info *pm = vdev->pm;
+	int delay;
+
+	pm->vdev = vdev;
+
+	init_rwsem(&pm->reset_lock);
+	atomic_set(&pm->reset_pending, 0);
+	atomic_set(&pm->reset_counter, 0);
+	atomic_set(&pm->engine_reset_counter, 0);
+
+	INIT_WORK(&pm->recovery_work, ivpu_pm_recovery_work);
+	INIT_DELAYED_WORK(&pm->job_timeout_work, ivpu_job_timeout_work);
+
+	if (ivpu_disable_recovery)
+		delay = -1;
+	else
+		delay = vdev->timeout.autosuspend;
+
+	pm_runtime_use_autosuspend(dev);
+	pm_runtime_set_autosuspend_delay(dev, delay);
+	pm_runtime_set_active(dev);
+
+	ivpu_dbg(vdev, PM, "Autosuspend delay = %d\n", delay);
+}
+
+void ivpu_pm_disable_recovery(struct ivpu_device *vdev)
+{
+	drm_WARN_ON(&vdev->drm, delayed_work_pending(&vdev->pm->job_timeout_work));
+	disable_work_sync(&vdev->pm->recovery_work);
+}
+
+void ivpu_pm_enable(struct ivpu_device *vdev)
+{
+	struct device *dev = vdev->drm.dev;
+
+	pm_runtime_allow(dev);
+	pm_runtime_put_autosuspend(dev);
+}
+
+void ivpu_pm_disable(struct ivpu_device *vdev)
+{
+	pm_runtime_get_noresume(vdev->drm.dev);
+	pm_runtime_forbid(vdev->drm.dev);
+}
+
+int ivpu_pm_dct_init(struct ivpu_device *vdev)
+{
+	if (vdev->pm->dct_active_percent)
+		return ivpu_pm_dct_enable(vdev, vdev->pm->dct_active_percent);
+
+	return 0;
+}
+
+int ivpu_pm_dct_enable(struct ivpu_device *vdev, u8 active_percent)
+{
+	u32 active_us, inactive_us;
+	int ret;
+
+	if (active_percent == 0 || active_percent > 100)
+		return -EINVAL;
+
+	active_us = (DCT_PERIOD_US * active_percent) / 100;
+	inactive_us = DCT_PERIOD_US - active_us;
+
+	vdev->pm->dct_active_percent = active_percent;
+
+	ivpu_dbg(vdev, PM, "DCT requested %u%% (D0: %uus, D0i2: %uus)\n",
+		 active_percent, active_us, inactive_us);
+
+	ret = ivpu_jsm_dct_enable(vdev, active_us, inactive_us);
+	if (ret) {
+		ivpu_err_ratelimited(vdev, "Failed to enable DCT: %d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+int ivpu_pm_dct_disable(struct ivpu_device *vdev)
+{
+	int ret;
+
+	vdev->pm->dct_active_percent = 0;
+
+	ivpu_dbg(vdev, PM, "DCT requested to be disabled\n");
+
+	ret = ivpu_jsm_dct_disable(vdev);
+	if (ret) {
+		ivpu_err_ratelimited(vdev, "Failed to disable DCT: %d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+void ivpu_pm_irq_dct_work_fn(struct work_struct *work)
+{
+	struct ivpu_device *vdev = container_of(work, struct ivpu_device, irq_dct_work);
+	bool enable;
+	int ret;
+
+	if (ivpu_hw_btrs_dct_get_request(vdev, &enable))
+		return;
+
+	if (enable)
+		ret = ivpu_pm_dct_enable(vdev, DCT_DEFAULT_ACTIVE_PERCENT);
+	else
+		ret = ivpu_pm_dct_disable(vdev);
+
+	if (!ret) {
+		/* Convert percent to U1.7 format */
+		u8 val = DIV_ROUND_CLOSEST(vdev->pm->dct_active_percent * 128, 100);
+
+		ivpu_hw_btrs_dct_set_status(vdev, enable, val);
+	}
+
+}

linux-7.2.3/drivers/accel/ivpu/ivpu_pm.h

@@ -0,0 +1,50 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2020-2024 Intel Corporation
+ */
+
+#ifndef __IVPU_PM_H__
+#define __IVPU_PM_H__
+
+#include <linux/rwsem.h>
+#include <linux/types.h>
+
+struct ivpu_device;
+
+struct ivpu_pm_info {
+	struct ivpu_device *vdev;
+	struct delayed_work job_timeout_work;
+	struct work_struct recovery_work;
+	struct rw_semaphore reset_lock;
+	atomic_t reset_counter;
+	atomic_t reset_pending;
+	atomic_t engine_reset_counter;
+	u8 dct_active_percent;
+};
+
+void ivpu_pm_init(struct ivpu_device *vdev);
+void ivpu_pm_enable(struct ivpu_device *vdev);
+void ivpu_pm_disable(struct ivpu_device *vdev);
+void ivpu_pm_disable_recovery(struct ivpu_device *vdev);
+
+int ivpu_pm_suspend_cb(struct device *dev);
+int ivpu_pm_resume_cb(struct device *dev);
+int ivpu_pm_runtime_suspend_cb(struct device *dev);
+int ivpu_pm_runtime_resume_cb(struct device *dev);
+
+void ivpu_pm_reset_prepare_cb(struct pci_dev *pdev);
+void ivpu_pm_reset_done_cb(struct pci_dev *pdev);
+
+int __must_check ivpu_rpm_get(struct ivpu_device *vdev);
+void ivpu_rpm_put(struct ivpu_device *vdev);
+
+void ivpu_pm_trigger_recovery(struct ivpu_device *vdev, const char *reason);
+void ivpu_start_job_timeout_detection(struct ivpu_device *vdev);
+void ivpu_stop_job_timeout_detection(struct ivpu_device *vdev);
+
+int ivpu_pm_dct_init(struct ivpu_device *vdev);
+int ivpu_pm_dct_enable(struct ivpu_device *vdev, u8 active_percent);
+int ivpu_pm_dct_disable(struct ivpu_device *vdev);
+void ivpu_pm_irq_dct_work_fn(struct work_struct *work);
+
+#endif /* __IVPU_PM_H__ */

linux-7.2.3/drivers/accel/ivpu/ivpu_sysfs.c

@@ -0,0 +1,299 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2024-2026 Intel Corporation
+ */
+
+#include <linux/device.h>
+#include <linux/err.h>
+#include <linux/pm_runtime.h>
+#include <linux/units.h>
+
+#include "ivpu_drv.h"
+#include "ivpu_gem.h"
+#include "ivpu_fw.h"
+#include "ivpu_hw.h"
+#include "ivpu_sysfs.h"
+
+/**
+ * DOC: npu_busy_time_us
+ *
+ * npu_busy_time_us is the time that the device spent executing jobs.
+ * The time is counted when and only when there are jobs submitted to firmware.
+ *
+ * This time can be used to measure the utilization of NPU, either by calculating
+ * npu_busy_time_us difference between two timepoints (i.e. measuring the time
+ * that the NPU was active during some workload) or monitoring utilization percentage
+ * by reading npu_busy_time_us periodically.
+ *
+ * When reading the value periodically, it shouldn't be read too often as it may have
+ * an impact on job submission performance. Recommended period is 1 second.
+ */
+static ssize_t
+npu_busy_time_us_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct drm_device *drm = dev_get_drvdata(dev);
+	struct ivpu_device *vdev = to_ivpu_device(drm);
+	ktime_t total, now = 0;
+
+	mutex_lock(&vdev->submitted_jobs_lock);
+
+	total = vdev->busy_time;
+	if (!xa_empty(&vdev->submitted_jobs_xa))
+		now = ktime_sub(ktime_get(), vdev->busy_start_ts);
+	mutex_unlock(&vdev->submitted_jobs_lock);
+
+	return sysfs_emit(buf, "%lld\n", ktime_to_us(ktime_add(total, now)));
+}
+
+static DEVICE_ATTR_RO(npu_busy_time_us);
+
+/**
+ * DOC: npu_memory_utilization
+ *
+ * The npu_memory_utilization is used to report in bytes a current NPU memory utilization.
+ *
+ */
+static ssize_t
+npu_memory_utilization_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct drm_device *drm = dev_get_drvdata(dev);
+	struct ivpu_device *vdev = to_ivpu_device(drm);
+	struct ivpu_bo *bo;
+	u64 total_npu_memory = 0;
+
+	mutex_lock(&vdev->bo_list_lock);
+	list_for_each_entry(bo, &vdev->bo_list, bo_list_node)
+		if (ivpu_bo_is_resident(bo))
+			total_npu_memory += ivpu_bo_size(bo);
+	mutex_unlock(&vdev->bo_list_lock);
+
+	return sysfs_emit(buf, "%lld\n", total_npu_memory);
+}
+
+static DEVICE_ATTR_RO(npu_memory_utilization);
+
+/**
+ * DOC: sched_mode
+ *
+ * The sched_mode is used to report current NPU scheduling mode.
+ *
+ * It returns following strings:
+ * - "HW"		- Hardware Scheduler mode
+ * - "OS"		- Operating System Scheduler mode
+ *
+ */
+static ssize_t sched_mode_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct drm_device *drm = dev_get_drvdata(dev);
+	struct ivpu_device *vdev = to_ivpu_device(drm);
+
+	return sysfs_emit(buf, "%s\n", vdev->fw->sched_mode ? "HW" : "OS");
+}
+
+static DEVICE_ATTR_RO(sched_mode);
+
+/**
+ * DOC: NPU frequency control and information
+ *
+ * Hardware frequency capabilities:
+ * freq/hw_min_freq - Minimum frequency supported by the NPU hardware.
+ * freq/hw_max_freq - Maximum frequency supported by the NPU hardware.
+ * freq/hw_efficient_freq - Most efficient operating frequency for the NPU.
+ *
+ * Configurable frequency limits (50XX devices and newer):
+ * freq/set_min_freq - Configured minimum operating frequency.
+ * freq/set_max_freq - Configured maximum operating frequency.
+ *
+ * Clamping behavior: Values written to set_min_freq and set_max_freq are
+ * clamped to hardware limits. If set_min_freq exceeds set_max_freq, the driver
+ * clamps set_min_freq to set_max_freq when selecting the operating frequency.
+ *
+ * Current operating frequency:
+ * freq/current_freq - Current frequency in MHz. Valid only when the device is
+ * active; returns 0 when idle. May be lower than the requested range due to
+ * power or thermal constraints.
+ *
+ * Legacy attributes (backward compatibility):
+ * npu_max_frequency_mhz - Alias for freq/hw_max_freq.
+ * npu_current_frequency_mhz - Alias for freq/current_freq.
+ */
+
+static ssize_t hw_min_freq_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct drm_device *drm = dev_get_drvdata(dev);
+	struct ivpu_device *vdev = to_ivpu_device(drm);
+	u32 freq_mhz = ivpu_hw_btrs_pll_ratio_to_mhz(vdev, vdev->hw->pll.min_ratio);
+
+	return sysfs_emit(buf, "%u\n", freq_mhz);
+}
+
+static DEVICE_ATTR_RO(hw_min_freq);
+
+static ssize_t hw_efficient_freq_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct drm_device *drm = dev_get_drvdata(dev);
+	struct ivpu_device *vdev = to_ivpu_device(drm);
+	u32 freq_mhz = ivpu_hw_btrs_pll_ratio_to_mhz(vdev, vdev->hw->pll.pn_ratio);
+
+	return sysfs_emit(buf, "%u\n", freq_mhz);
+}
+
+static DEVICE_ATTR_RO(hw_efficient_freq);
+
+static ssize_t hw_max_freq_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct drm_device *drm = dev_get_drvdata(dev);
+	struct ivpu_device *vdev = to_ivpu_device(drm);
+	u32 freq_mhz = ivpu_hw_btrs_pll_ratio_to_mhz(vdev, vdev->hw->pll.max_ratio);
+
+	return sysfs_emit(buf, "%u\n", freq_mhz);
+}
+
+static DEVICE_ATTR_RO(hw_max_freq);
+
+static ssize_t set_min_freq_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct drm_device *drm = dev_get_drvdata(dev);
+	struct ivpu_device *vdev = to_ivpu_device(drm);
+	u32 freq_mhz = ivpu_hw_btrs_pll_ratio_to_mhz(vdev, vdev->hw->pll.cfg_min_ratio);
+
+	return sysfs_emit(buf, "%u\n", freq_mhz);
+}
+
+static ssize_t
+set_min_freq_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+{
+	struct drm_device *drm = dev_get_drvdata(dev);
+	struct ivpu_device *vdev = to_ivpu_device(drm);
+	u32 freq_mhz;
+	int ret;
+
+	ret = kstrtou32(buf, 10, &freq_mhz);
+	if (ret)
+		return ret;
+
+	ret = ivpu_hw_btrs_cfg_min_freq_set(vdev, freq_mhz);
+	if (ret)
+		return ret;
+
+	return count;
+}
+
+static DEVICE_ATTR_RW(set_min_freq);
+
+static ssize_t set_max_freq_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct drm_device *drm = dev_get_drvdata(dev);
+	struct ivpu_device *vdev = to_ivpu_device(drm);
+	u32 freq_mhz = ivpu_hw_btrs_pll_ratio_to_mhz(vdev, vdev->hw->pll.cfg_max_ratio);
+
+	return sysfs_emit(buf, "%u\n", freq_mhz);
+}
+
+static ssize_t
+set_max_freq_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
+{
+	struct drm_device *drm = dev_get_drvdata(dev);
+	struct ivpu_device *vdev = to_ivpu_device(drm);
+	u32 freq_mhz;
+	int ret;
+
+	ret = kstrtou32(buf, 10, &freq_mhz);
+	if (ret)
+		return ret;
+
+	/* Convert MHz to Hz and set max frequency */
+	ret = ivpu_hw_btrs_cfg_max_freq_set(vdev, freq_mhz);
+	if (ret)
+		return ret;
+
+	return count;
+}
+
+static DEVICE_ATTR_RW(set_max_freq);
+
+static ssize_t current_freq_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct drm_device *drm = dev_get_drvdata(dev);
+	struct ivpu_device *vdev = to_ivpu_device(drm);
+	u32 freq_mhz = 0;
+
+	/* Read frequency only if device is active, otherwise frequency is 0 */
+	if (pm_runtime_get_if_active(vdev->drm.dev) > 0) {
+		freq_mhz = ivpu_hw_btrs_current_freq_get(vdev);
+
+		pm_runtime_put_autosuspend(vdev->drm.dev);
+	}
+
+	return sysfs_emit(buf, "%u\n", freq_mhz);
+}
+
+static DEVICE_ATTR_RO(current_freq);
+
+/* Alias to current_freq for legacy compat */
+static struct device_attribute dev_attr_npu_max_frequency_mhz =
+	__ATTR(npu_max_frequency_mhz, 0444, hw_max_freq_show, NULL);
+
+static struct device_attribute dev_attr_npu_current_frequency_mhz =
+	__ATTR(npu_current_frequency_mhz, 0444, current_freq_show, NULL);
+
+static struct attribute *ivpu_freq_attrs[] = {
+	&dev_attr_hw_min_freq.attr,
+	&dev_attr_hw_efficient_freq.attr,
+	&dev_attr_hw_max_freq.attr,
+	&dev_attr_current_freq.attr,
+	NULL,
+};
+
+static struct attribute_group ivpu_freq_attr_group = {
+	.name = "freq",
+	.attrs = ivpu_freq_attrs,
+};
+
+static struct attribute *ivpu_dev_attrs[] = {
+	&dev_attr_npu_busy_time_us.attr,
+	&dev_attr_npu_memory_utilization.attr,
+	&dev_attr_sched_mode.attr,
+	&dev_attr_npu_max_frequency_mhz.attr,
+	&dev_attr_npu_current_frequency_mhz.attr,
+	NULL,
+};
+
+static struct attribute_group ivpu_dev_attr_group = {
+	.attrs = ivpu_dev_attrs,
+};
+
+void ivpu_sysfs_init(struct ivpu_device *vdev)
+{
+	int ret;
+
+	ret = devm_device_add_group(vdev->drm.dev, &ivpu_dev_attr_group);
+	if (ret) {
+		ivpu_warn(vdev, "Failed to add sysfs group to device, ret %d", ret);
+		return;
+	}
+
+	ret = devm_device_add_group(vdev->drm.dev, &ivpu_freq_attr_group);
+	if (ret) {
+		ivpu_warn(vdev, "Failed to add sysfs freq group, ret %d", ret);
+		return;
+	}
+
+	if (ivpu_hw_ip_gen(vdev) >= IVPU_HW_IP_50XX) {
+		ret = sysfs_add_file_to_group(&vdev->drm.dev->kobj,
+					      &dev_attr_set_min_freq.attr,
+					      "freq");
+		if (ret) {
+			ivpu_warn(vdev, "Failed to add sysfs set_min_freq to device, ret %d", ret);
+			return;
+		}
+
+		ret = sysfs_add_file_to_group(&vdev->drm.dev->kobj,
+					      &dev_attr_set_max_freq.attr,
+					      "freq");
+		if (ret) {
+			ivpu_warn(vdev, "Failed to add sysfs set_max_freq to device, ret %d", ret);
+			return;
+		}
+	}
+}

linux-7.2.3/drivers/accel/ivpu/ivpu_sysfs.h

@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2024 Intel Corporation
+ */
+
+#ifndef __IVPU_SYSFS_H__
+#define __IVPU_SYSFS_H__
+
+#include "ivpu_drv.h"
+
+void ivpu_sysfs_init(struct ivpu_device *vdev);
+
+#endif /* __IVPU_SYSFS_H__ */

linux-7.2.3/drivers/accel/ivpu/ivpu_trace.h

@@ -0,0 +1,73 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (C) 2020-2024 Intel Corporation
+ */
+
+#if !defined(__IVPU_TRACE_H__) || defined(TRACE_HEADER_MULTI_READ)
+#define __IVPU_TRACE_H__
+
+#include <linux/tracepoint.h>
+#include "ivpu_drv.h"
+#include "ivpu_job.h"
+#include "vpu_jsm_api.h"
+#include "ivpu_jsm_msg.h"
+#include "ivpu_ipc.h"
+
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM vpu
+#define TRACE_INCLUDE_FILE ivpu_trace
+
+TRACE_EVENT(pm,
+	    TP_PROTO(const char *event),
+	    TP_ARGS(event),
+	    TP_STRUCT__entry(__field(const char *, event)),
+	    TP_fast_assign(__entry->event = event;),
+	    TP_printk("%s", __entry->event)
+);
+
+TRACE_EVENT(job,
+	    TP_PROTO(const char *event, struct ivpu_job *job),
+	    TP_ARGS(event, job),
+	    TP_STRUCT__entry(__field(const char *, event)
+		__field(u32, ctx_id)
+		__field(u32, engine_id)
+		__field(u32, job_id)
+		),
+	    TP_fast_assign(__entry->event = event;
+		__entry->ctx_id = job->file_priv->ctx.id;
+		__entry->engine_id = job->engine_idx;
+		__entry->job_id = job->job_id;),
+	    TP_printk("%s context:%d engine:%d job:%d",
+		      __entry->event,
+		      __entry->ctx_id,
+		      __entry->engine_id,
+		      __entry->job_id)
+);
+
+TRACE_EVENT(jsm,
+	    TP_PROTO(const char *event, struct vpu_jsm_msg *msg),
+	    TP_ARGS(event, msg),
+	    TP_STRUCT__entry(__field(const char *, event)
+		__field(const char *, type)
+		__field(enum vpu_ipc_msg_status, status)
+		__field(u32, request_id)
+		__field(u32, result)
+		),
+	    TP_fast_assign(__entry->event = event;
+		__entry->type = ivpu_jsm_msg_type_to_str(msg->type);
+		__entry->status = msg->status;
+		__entry->request_id = msg->request_id;
+		__entry->result = msg->result;),
+	    TP_printk("%s type:%s, status:%#x, id:%#x, result:%#x",
+		      __entry->event,
+		      __entry->type,
+		      __entry->status,
+		      __entry->request_id,
+		      __entry->result)
+);
+
+#endif /* __IVPU_TRACE_H__ */
+
+#undef TRACE_INCLUDE_PATH
+#define TRACE_INCLUDE_PATH .
+#include <trace/define_trace.h>

linux-7.2.3/drivers/accel/ivpu/ivpu_trace_points.c

@@ -0,0 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (C) 2020-2024 Intel Corporation
+ */
+
+#ifndef __CHECKER__
+#define CREATE_TRACE_POINTS
+#include "ivpu_trace.h"
+#endif

linux-7.2.3/drivers/accel/ivpu/vpu_boot_api.h

@@ -0,0 +1,450 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright (c) 2020-2025, Intel Corporation.
+ */
+
+/**
+ * @addtogroup Boot
+ * @{
+ */
+
+/**
+ * @file
+ * @brief Boot API public header file.
+ */
+
+#ifndef VPU_BOOT_API_H
+#define VPU_BOOT_API_H
+
+/**
+ *  The below values will be used to construct the version info this way:
+ *  fw_bin_header->api_version[VPU_BOOT_API_VER_ID] = (VPU_BOOT_API_VER_MAJOR << 16) |
+ *  VPU_BOOT_API_VER_MINOR;
+ *  VPU_BOOT_API_VER_PATCH will be ignored. KMD and compatibility is not affected if this changes
+ *  This information is collected by using vpuip_2/application/vpuFirmware/make_std_fw_image.py
+ *  If a header is missing this info we ignore the header, if a header is missing or contains
+ *  partial info a build error will be generated.
+ */
+
+/**
+ * Major version changes that break backward compatibility.
+ * Major version must start from 1 and can only be incremented.
+ */
+#define VPU_BOOT_API_VER_MAJOR 3
+
+/**
+ * Minor version changes when API backward compatibility is preserved.
+ * Resets to 0 if Major version is incremented.
+ */
+#define VPU_BOOT_API_VER_MINOR 29
+
+/**
+ * API header changed (field names, documentation, formatting) but API itself has not been changed
+ */
+#define VPU_BOOT_API_VER_PATCH 5
+
+/**
+ * Index in the API version table
+ * Must be unique for each API
+ */
+#define VPU_BOOT_API_VER_INDEX 0
+
+#pragma pack(push, 4)
+
+/**
+ * Firmware image header format
+ */
+#define VPU_FW_HEADER_SIZE    4096
+#define VPU_FW_HEADER_VERSION 0x1
+#define VPU_FW_VERSION_SIZE   32
+#define VPU_FW_API_VER_NUM    16
+
+struct vpu_firmware_header {
+	u32 header_version;
+	u32 image_format;
+	u64 image_load_address;
+	u32 image_size;
+	u64 entry_point;
+	u8 vpu_version[VPU_FW_VERSION_SIZE];
+	u32 compression_type;
+	u64 firmware_version_load_address;
+	u32 firmware_version_size;
+	u64 boot_params_load_address;
+	u32 api_version[VPU_FW_API_VER_NUM];
+	/** Size of memory require for firmware execution */
+	u32 runtime_size;
+	u32 shave_nn_fw_size;
+	/**
+	 * Size of primary preemption buffer, assuming a 2-job submission queue.
+	 * NOTE: host driver is expected to adapt size accordingly to actual
+	 * submission queue size and device capabilities.
+	 */
+	u32 preemption_buffer_1_size;
+	/**
+	 * Size of secondary preemption buffer, assuming a 2-job submission queue.
+	 * NOTE: host driver is expected to adapt size accordingly to actual
+	 * submission queue size and device capabilities.
+	 */
+	u32 preemption_buffer_2_size;
+	/**
+	 * Maximum preemption buffer size that the FW can use: no need for the host
+	 * driver to allocate more space than that specified by these fields.
+	 * A value of 0 means no declared limit.
+	 */
+	u32 preemption_buffer_1_max_size;
+	u32 preemption_buffer_2_max_size;
+	/** Space reserved for future preemption-related fields. */
+	u32 preemption_reserved[4];
+	/** FW image read only section start address, 4KB aligned */
+	u64 ro_section_start_address;
+	/** FW image read only section size, 4KB aligned */
+	u32 ro_section_size;
+	u32 reserved;
+};
+
+/**
+ * Firmware boot parameters format
+ */
+
+/** Values for boot_type field */
+#define VPU_BOOT_TYPE_COLDBOOT 0
+#define VPU_BOOT_TYPE_WARMBOOT 1
+
+/** Value for magic filed */
+#define VPU_BOOT_PARAMS_MAGIC 0x10000
+
+/** VPU scheduling mode. By default, OS scheduling is used. */
+#define VPU_SCHEDULING_MODE_OS 0
+#define VPU_SCHEDULING_MODE_HW 1
+
+enum VPU_BOOT_L2_CACHE_CFG_TYPE {
+	VPU_BOOT_L2_CACHE_CFG_UPA = 0,
+	VPU_BOOT_L2_CACHE_CFG_NN = 1,
+	VPU_BOOT_L2_CACHE_CFG_NUM = 2
+};
+
+/** VPU MCA ECC signalling mode. By default, no signalling is used */
+enum VPU_BOOT_MCA_ECC_SIGNAL_TYPE {
+	VPU_BOOT_MCA_ECC_NONE = 0,
+	VPU_BOOT_MCA_ECC_CORR = 1,
+	VPU_BOOT_MCA_ECC_FATAL = 2,
+	VPU_BOOT_MCA_ECC_BOTH = 3
+};
+
+/**
+ * Logging destinations.
+ *
+ * Logging output can be directed to different logging destinations. This enum
+ * defines the list of logging destinations supported by the VPU firmware (NOTE:
+ * a specific VPU FW binary may support only a subset of such output
+ * destinations, depending on the target platform and compile options).
+ */
+enum vpu_trace_destination {
+	VPU_TRACE_DESTINATION_PIPEPRINT = 0x1,
+	VPU_TRACE_DESTINATION_VERBOSE_TRACING = 0x2,
+	VPU_TRACE_DESTINATION_NORTH_PEAK = 0x4,
+};
+
+/*
+ * Processor bit shifts (for loggable HW components).
+ */
+#define VPU_TRACE_PROC_BIT_RESERVED  0
+#define VPU_TRACE_PROC_BIT_LRT	     1
+#define VPU_TRACE_PROC_BIT_LNN	     2
+#define VPU_TRACE_PROC_BIT_SHV_0     3
+#define VPU_TRACE_PROC_BIT_SHV_1     4
+#define VPU_TRACE_PROC_BIT_SHV_2     5
+#define VPU_TRACE_PROC_BIT_SHV_3     6
+#define VPU_TRACE_PROC_BIT_SHV_4     7
+#define VPU_TRACE_PROC_BIT_SHV_5     8
+#define VPU_TRACE_PROC_BIT_SHV_6     9
+#define VPU_TRACE_PROC_BIT_SHV_7     10
+#define VPU_TRACE_PROC_BIT_SHV_8     11
+#define VPU_TRACE_PROC_BIT_SHV_9     12
+#define VPU_TRACE_PROC_BIT_SHV_10    13
+#define VPU_TRACE_PROC_BIT_SHV_11    14
+#define VPU_TRACE_PROC_BIT_SHV_12    15
+#define VPU_TRACE_PROC_BIT_SHV_13    16
+#define VPU_TRACE_PROC_BIT_SHV_14    17
+#define VPU_TRACE_PROC_BIT_SHV_15    18
+#define VPU_TRACE_PROC_BIT_ACT_SHV_0 19
+#define VPU_TRACE_PROC_BIT_ACT_SHV_1 20
+#define VPU_TRACE_PROC_BIT_ACT_SHV_2 21
+#define VPU_TRACE_PROC_BIT_ACT_SHV_3 22
+#define VPU_TRACE_PROC_NO_OF_HW_DEVS 23
+
+/** VPU 30xx HW component IDs are sequential, so define first and last IDs. */
+#define VPU_TRACE_PROC_BIT_30XX_FIRST VPU_TRACE_PROC_BIT_LRT
+#define VPU_TRACE_PROC_BIT_30XX_LAST  VPU_TRACE_PROC_BIT_SHV_15
+
+struct vpu_boot_l2_cache_config {
+	u8 use;
+	u8 cfg;
+};
+
+/**
+ * When HW scheduling mode is enabled, a present period is defined.
+ * It will be used by VPU to swap between normal and focus priorities
+ * to prevent starving of normal priority band (when implemented).
+ * Host must provide a valid value at boot time in
+ * `vpu_focus_present_timer_ms`. If the value provided by the host is not within the
+ * defined range a default value will be used. Here we define the min. and max.
+ * allowed values and the and default value of the present period. Units are milliseconds.
+ */
+#define VPU_PRESENT_CALL_PERIOD_MS_DEFAULT 50
+#define VPU_PRESENT_CALL_PERIOD_MS_MIN	   16
+#define VPU_PRESENT_CALL_PERIOD_MS_MAX	   10000
+
+/**
+ * Macros to enable various power profiles within the NPU.
+ * To be defined as part of 32 bit mask.
+ */
+#define POWER_PROFILE_SURVIVABILITY 0x1
+
+/**
+ * Enum for dvfs_mode boot param.
+ */
+enum vpu_governor {
+	VPU_GOV_DEFAULT = 0, /** Default Governor for the system */
+	VPU_GOV_MAX_PERFORMANCE = 1, /** Maximum performance governor */
+	VPU_GOV_ON_DEMAND = 2, /** On Demand frequency control governor */
+	VPU_GOV_POWER_SAVE = 3, /** Power save governor */
+	VPU_GOV_ON_DEMAND_PRIORITY_AWARE = 4 /** On Demand priority based governor */
+};
+
+struct vpu_boot_params {
+	u32 magic;
+	u32 vpu_id;
+	u32 vpu_count;
+	u32 reserved_0[5];
+	/** Clock frequencies: 0x20 - 0xFF */
+	u32 frequency;
+	u32 reserved_1[12];
+	u32 perf_clk_frequency;
+	u32 reserved_2[42];
+	/** Memory regions: 0x100 - 0x1FF */
+	u64 ipc_header_area_start;
+	u32 ipc_header_area_size;
+	u64 shared_region_base;
+	u32 shared_region_size;
+	u64 ipc_payload_area_start;
+	u32 ipc_payload_area_size;
+	u64 global_aliased_pio_base;
+	u32 global_aliased_pio_size;
+	u32 autoconfig;
+	struct vpu_boot_l2_cache_config cache_defaults[VPU_BOOT_L2_CACHE_CFG_NUM];
+	u32 reserved_3[3];
+	/**
+	 * ShaveNN FW section VPU base address
+	 * On VPU2.7 HW this address must be within 2GB range starting from L2C_PAGE_TABLE base
+	 */
+	u64 shave_nn_fw_base;
+	u64 save_restore_ret_address; /** stores the address of FW's restore entry point */
+	u32 reserved_4[43];
+	/** IRQ re-direct numbers: 0x200 - 0x2FF */
+	s32 watchdog_irq_mss;
+	s32 watchdog_irq_nce;
+	/** ARM -> VPU doorbell interrupt. ARM is notifying VPU of async command or compute job. */
+	u32 host_to_vpu_irq;
+	/** VPU -> ARM job done interrupt. VPU is notifying ARM of compute job completion. */
+	u32 job_done_irq;
+	/** Padding. */
+	u32 reserved_5[60];
+	/** Silicon information: 0x300 - 0x3FF */
+	u32 host_version_id;
+	u32 si_stepping;
+	u64 device_id;
+	u64 feature_exclusion;
+	u64 sku;
+	/** PLL ratio for minimum clock frequency */
+	u32 min_freq_pll_ratio;
+	/** PLL ratio for maximum clock frequency */
+	u32 max_freq_pll_ratio;
+	/**
+	 * Initial log level threshold (messages with log level severity less than
+	 * the threshold will not be logged); applies to every enabled logging
+	 * destination and loggable HW component. See 'mvLog_t' enum for acceptable
+	 * values.
+	 * TODO: EISW-33556: Move log level definition (mvLog_t) to this file.
+	 */
+	u32 default_trace_level;
+	u32 boot_type;
+	u64 punit_telemetry_sram_base;
+	u64 punit_telemetry_sram_size;
+	u32 vpu_telemetry_enable;
+	u64 crit_tracing_buff_addr;
+	u32 crit_tracing_buff_size;
+	u64 verbose_tracing_buff_addr;
+	u32 verbose_tracing_buff_size;
+	u64 verbose_tracing_sw_component_mask; /** TO BE REMOVED */
+	/**
+	 * Mask of destinations to which logging messages are delivered; bitwise OR
+	 * of values defined in vpu_trace_destination enum.
+	 */
+	u32 trace_destination_mask;
+	/**
+	 * Mask of hardware components for which logging is enabled; bitwise OR of
+	 * bits defined by the VPU_TRACE_PROC_BIT_* macros.
+	 */
+	u64 trace_hw_component_mask;
+	/** Mask of trace message formats supported by the driver */
+	u64 tracing_buff_message_format_mask;
+	u64 trace_reserved_1[2];
+	u32 reserved_6;
+	/** PLL ratio for efficient clock frequency */
+	u32 pn_freq_pll_ratio;
+	/**
+	 * DVFS Mode:
+	 * 0 - Default, DVFS mode selected by the firmware
+	 * 1 - Max Performance
+	 * 2 - On Demand
+	 * 3 - Power Save
+	 * 4 - On Demand Priority Aware
+	 */
+	u32 dvfs_mode;
+	/**
+	 * Depending on DVFS Mode:
+	 * On-demand: Default if 0.
+	 *    Bit 0-7   - uint8_t: Highest residency percent
+	 *    Bit 8-15  - uint8_t: High residency percent
+	 *    Bit 16-23 - uint8_t: Low residency percent
+	 *    Bit 24-31 - uint8_t: Lowest residency percent
+	 *    Bit 32-35 - unsigned 4b: PLL Ratio increase amount on highest residency
+	 *    Bit 36-39 - unsigned 4b: PLL Ratio increase amount on high residency
+	 *    Bit 40-43 - unsigned 4b: PLL Ratio decrease amount on low residency
+	 *    Bit 44-47 - unsigned 4b: PLL Ratio decrease amount on lowest frequency
+	 *    Bit 48-55 - uint8_t: Period (ms) for residency decisions
+	 *    Bit 56-63 - uint8_t: Averaging windows (as multiples of period. Max: 30 decimal)
+	 * Power Save/Max Performance: Unused
+	 */
+	u64 dvfs_param;
+	/**
+	 * D0i3 delayed entry
+	 * Bit 0: Disable CPU state save on D0i2 entry flow.
+	 *       0: Every D0i2 entry saves state. Save state IPC message ignored.
+	 *       1: IPC message required to save state on D0i3 entry flow.
+	 * NOTE: This parameter is deprecated starting NPU50xx+. Bit 0 is now hardcoded to 1,
+	 * meaning CPU state save always requires IPC message on D0i3 entry flow.
+	 */
+	u32 d0i3_delayed_entry;
+	/** Time spent by VPU in D0i3 state */
+	u64 d0i3_residency_time_us;
+	/** Value of VPU perf counter at the time of entering D0i3 state . */
+	u64 d0i3_entry_vpu_ts;
+	/**
+	 * The system time of the host operating system in microseconds.
+	 * E.g the number of microseconds since 1st of January 1970, or whatever
+	 * date the host operating system uses to maintain system time.
+	 * This value will be used to track system time on the VPU.
+	 * The KMD is required to update this value on every VPU reset.
+	 */
+	u64 system_time_us;
+	u32 reserved_7[2];
+	/**
+	 * The delta between device monotonic time and the current value of the
+	 * HW timestamp register, in ticks. Written by the firmware during boot.
+	 * Can be used by the KMD to calculate device time.
+	 */
+	u64 device_time_delta_ticks;
+	u32 reserved_8[30];
+	/** Power States transitions timestamps: 0x440 - 0x46F*/
+	struct power_states_timestamps {
+		/** VPU_IDLE -> VPU_ACTIVE transition initiated timestamp */
+		u64 vpu_active_state_requested;
+		/** VPU_IDLE -> VPU_ACTIVE transition completed timestamp */
+		u64 vpu_active_state_achieved;
+		/** VPU_ACTIVE -> VPU_IDLE transition initiated timestamp */
+		u64 vpu_idle_state_requested;
+		/** VPU_ACTIVE -> VPU_IDLE transition completed timestamp */
+		u64 vpu_idle_state_achieved;
+		/** VPU_IDLE -> VPU_STANDBY transition initiated timestamp */
+		u64 vpu_standby_state_requested;
+		/** VPU_IDLE -> VPU_STANDBY transition completed timestamp */
+		u64 vpu_standby_state_achieved;
+	} power_states_timestamps;
+	/** VPU scheduling mode. Values defined by VPU_SCHEDULING_MODE_* macros. */
+	u32 vpu_scheduling_mode;
+	/** Present call period in milliseconds. */
+	u32 vpu_focus_present_timer_ms;
+	/** VPU ECC Signaling */
+	u32 vpu_uses_ecc_mca_signal;
+	/** Values defined by POWER_PROFILE* macros */
+	u32 power_profile;
+	/** Microsecond value for DCT active cycle */
+	u32 dct_active_us;
+	/** Microsecond value for DCT inactive cycle */
+	u32 dct_inactive_us;
+	/** Unused/reserved: 0x488 - 0xFFF */
+	u32 reserved_9[734];
+};
+
+/** Magic numbers set between host and vpu to detect corruption of tracing init */
+#define VPU_TRACING_BUFFER_CANARY (0xCAFECAFE)
+
+/** Tracing buffer message format definitions */
+#define VPU_TRACING_FORMAT_STRING 0
+#define VPU_TRACING_FORMAT_MIPI	  2
+/**
+ * Header of the tracing buffer.
+ * The below defined header will be stored at the beginning of
+ * each allocated tracing buffer, followed by a series of 256b
+ * of ASCII trace message entries.
+ */
+struct vpu_tracing_buffer_header {
+	/**
+	 * Magic number set by host to detect corruption
+	 * @see VPU_TRACING_BUFFER_CANARY
+	 */
+	u32 host_canary_start;
+	/** offset from start of buffer for trace entries */
+	u32 read_index;
+	/** keeps track of wrapping on the reader side */
+	u32 read_wrap_count;
+	u32 pad_to_cache_line_size_0[13];
+	/** End of first cache line */
+
+	/**
+	 * Magic number set by host to detect corruption
+	 * @see VPU_TRACING_BUFFER_CANARY
+	 */
+	u32 vpu_canary_start;
+	/** offset from start of buffer from write start */
+	u32 write_index;
+	/** counter for buffer wrapping */
+	u32 wrap_count;
+	/** legacy field - do not use */
+	u32 reserved_0;
+	/**
+	 * Size of the log buffer including this header (`header_size`) and space
+	 * reserved for all messages. If `alignment` is greater than 0, the `size`
+	 * must be a multiple of `alignment`.
+	 */
+	u32 size;
+	/** Header version */
+	u16 header_version;
+	/** Header size */
+	u16 header_size;
+	/**
+	 * Format of the messages in the trace buffer
+	 * 0 - null terminated string
+	 * 1 - size + null terminated string
+	 * 2 - MIPI-SysT encoding
+	 */
+	u32 format;
+	/**
+	 * Message alignment
+	 * 0 - messages are place 1 after another
+	 * n - every message starts and multiple on offset
+	 */
+	u32 alignment; /** 64, 128, 256 */
+	/** Name of the logging entity, i.e "LRT", "LNN", "SHV0", etc */
+	char name[16];
+	u32 pad_to_cache_line_size_1[4];
+	/** End of second cache line */
+};
+
+#pragma pack(pop)
+
+#endif
+
+///@}