diff --git a/drivers/platform/x86/intel/speed_select_if/Kconfig b/drivers/platform/x86/intel/speed_select_if/Kconfig
index ce3e3dc076d2..4eb3ad299db0 100644
--- a/drivers/platform/x86/intel/speed_select_if/Kconfig
+++ b/drivers/platform/x86/intel/speed_select_if/Kconfig
@@ -2,8 +2,12 @@ menu "Intel Speed Select Technology interface support"
 	depends on PCI
 	depends on X86_64 || COMPILE_TEST
 
+config INTEL_SPEED_SELECT_TPMI
+	tristate
+
 config INTEL_SPEED_SELECT_INTERFACE
 	tristate "Intel(R) Speed Select Technology interface drivers"
+	select INTEL_SPEED_SELECT_TPMI if INTEL_TPMI
 	help
 	  This config enables the Intel(R) Speed Select Technology interface
 	  drivers. The Intel(R) speed select technology features are non
diff --git a/drivers/platform/x86/intel/speed_select_if/Makefile b/drivers/platform/x86/intel/speed_select_if/Makefile
index 856076206f35..1d878a36d0ab 100644
--- a/drivers/platform/x86/intel/speed_select_if/Makefile
+++ b/drivers/platform/x86/intel/speed_select_if/Makefile
@@ -8,3 +8,5 @@ obj-$(CONFIG_INTEL_SPEED_SELECT_INTERFACE) += isst_if_common.o
 obj-$(CONFIG_INTEL_SPEED_SELECT_INTERFACE) += isst_if_mmio.o
 obj-$(CONFIG_INTEL_SPEED_SELECT_INTERFACE) += isst_if_mbox_pci.o
 obj-$(CONFIG_INTEL_SPEED_SELECT_INTERFACE) += isst_if_mbox_msr.o
+obj-$(CONFIG_INTEL_SPEED_SELECT_TPMI) += isst_tpmi_core.o
+obj-$(CONFIG_INTEL_SPEED_SELECT_TPMI) += isst_tpmi.o
diff --git a/drivers/platform/x86/intel/speed_select_if/isst_tpmi.c b/drivers/platform/x86/intel/speed_select_if/isst_tpmi.c
new file mode 100644
index 000000000000..7b4bdeefb8bc
--- /dev/null
+++ b/drivers/platform/x86/intel/speed_select_if/isst_tpmi.c
@@ -0,0 +1,53 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * isst_tpmi.c: SST TPMI interface
+ *
+ * Copyright (c) 2023, Intel Corporation.
+ * All Rights Reserved.
+ *
+ */
+
+#include <linux/auxiliary_bus.h>
+#include <linux/module.h>
+#include <linux/intel_tpmi.h>
+
+#include "isst_tpmi_core.h"
+
+static int intel_sst_probe(struct auxiliary_device *auxdev, const struct auxiliary_device_id *id)
+{
+	int ret;
+
+	ret = tpmi_sst_init();
+	if (ret)
+		return ret;
+
+	ret = tpmi_sst_dev_add(auxdev);
+	if (ret)
+		tpmi_sst_exit();
+
+	return ret;
+}
+
+static void intel_sst_remove(struct auxiliary_device *auxdev)
+{
+	tpmi_sst_dev_remove(auxdev);
+	tpmi_sst_exit();
+}
+
+static const struct auxiliary_device_id intel_sst_id_table[] = {
+	{ .name = "intel_vsec.tpmi-sst" },
+	{}
+};
+MODULE_DEVICE_TABLE(auxiliary, intel_sst_id_table);
+
+static struct auxiliary_driver intel_sst_aux_driver = {
+	.id_table       = intel_sst_id_table,
+	.remove         = intel_sst_remove,
+	.probe          = intel_sst_probe,
+};
+
+module_auxiliary_driver(intel_sst_aux_driver);
+
+MODULE_IMPORT_NS(INTEL_TPMI_SST);
+MODULE_DESCRIPTION("Intel TPMI SST Driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/platform/x86/intel/speed_select_if/isst_tpmi_core.c b/drivers/platform/x86/intel/speed_select_if/isst_tpmi_core.c
new file mode 100644
index 000000000000..6b37016c0417
--- /dev/null
+++ b/drivers/platform/x86/intel/speed_select_if/isst_tpmi_core.c
@@ -0,0 +1,274 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * isst_tpmi.c: SST TPMI interface core
+ *
+ * Copyright (c) 2023, Intel Corporation.
+ * All Rights Reserved.
+ *
+ * This information will be useful to understand flows:
+ * In the current generation of platforms, TPMI is supported via OOB
+ * PCI device. This PCI device has one instance per CPU package.
+ * There is a unique TPMI ID for SST. Each TPMI ID also has multiple
+ * entries, representing per power domain information.
+ *
+ * There is one dev file for complete SST information and control same as the
+ * prior generation of hardware. User spaces don't need to know how the
+ * information is presented by the hardware. The TPMI core module implements
+ * the hardware mapping.
+ */
+
+#include <linux/auxiliary_bus.h>
+#include <linux/intel_tpmi.h>
+#include <linux/fs.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <uapi/linux/isst_if.h>
+
+#include "isst_tpmi_core.h"
+#include "isst_if_common.h"
+
+/**
+ * struct tpmi_per_power_domain_info -	Store per power_domain SST info
+ * @package_id:		Package id for this power_domain
+ * @power_domain_id:	Power domain id, Each entry from the SST-TPMI instance is a power_domain.
+ * @sst_base:		Mapped SST base IO memory
+ * @auxdev:		Auxiliary device instance enumerated this instance
+ *
+ * This structure is used store complete SST information for a power_domain. This information
+ * is used to read/write request for any SST IOCTL. Each physical CPU package can have multiple
+ * power_domains. Each power domain describes its own SST information and has its own controls.
+ */
+struct tpmi_per_power_domain_info {
+	int package_id;
+	int power_domain_id;
+	void __iomem *sst_base;
+	struct auxiliary_device *auxdev;
+};
+
+/**
+ * struct tpmi_sst_struct -	Store sst info for a package
+ * @package_id:			Package id for this aux device instance
+ * @number_of_power_domains:	Number of power_domains pointed by power_domain_info pointer
+ * @power_domain_info:		Pointer to power domains information
+ *
+ * This structure is used store full SST information for a package.
+ * Each package has a unique OOB PCI device, which enumerates TPMI.
+ * Each Package will have multiple power_domains.
+ */
+struct tpmi_sst_struct {
+	int package_id;
+	int number_of_power_domains;
+	struct tpmi_per_power_domain_info *power_domain_info;
+};
+
+/**
+ * struct tpmi_sst_common_struct -	Store all SST instances
+ * @max_index:		Maximum instances currently present
+ * @sst_inst:		Pointer to per package instance
+ *
+ * Stores every SST Package instance.
+ */
+struct tpmi_sst_common_struct {
+	int max_index;
+	struct tpmi_sst_struct **sst_inst;
+};
+
+/*
+ * Each IOCTL request is processed under this lock. Also used to protect
+ * registration functions and common data structures.
+ */
+static DEFINE_MUTEX(isst_tpmi_dev_lock);
+
+/* Usage count to track, number of TPMI SST instances registered to this core. */
+static int isst_core_usage_count;
+
+/* Stores complete SST information for every package and power_domain */
+static struct tpmi_sst_common_struct isst_common;
+
+static int isst_if_get_tpmi_instance_count(void __user *argp)
+{
+	struct isst_tpmi_instance_count tpmi_inst;
+	struct tpmi_sst_struct *sst_inst;
+	int i;
+
+	if (copy_from_user(&tpmi_inst, argp, sizeof(tpmi_inst)))
+		return -EFAULT;
+
+	if (tpmi_inst.socket_id >= topology_max_packages())
+		return -EINVAL;
+
+	tpmi_inst.count = isst_common.sst_inst[tpmi_inst.socket_id]->number_of_power_domains;
+
+	sst_inst = isst_common.sst_inst[tpmi_inst.socket_id];
+	tpmi_inst.valid_mask = 0;
+	for (i = 0; i < sst_inst->number_of_power_domains; ++i) {
+		struct tpmi_per_power_domain_info *power_domain_info;
+
+		power_domain_info = &sst_inst->power_domain_info[i];
+		if (power_domain_info->sst_base)
+			tpmi_inst.valid_mask |= BIT(i);
+	}
+
+	if (copy_to_user(argp, &tpmi_inst, sizeof(tpmi_inst)))
+		return -EFAULT;
+
+	return 0;
+}
+
+static long isst_if_def_ioctl(struct file *file, unsigned int cmd,
+			      unsigned long arg)
+{
+	void __user *argp = (void __user *)arg;
+	long ret = -ENOTTY;
+
+	mutex_lock(&isst_tpmi_dev_lock);
+	switch (cmd) {
+	case ISST_IF_COUNT_TPMI_INSTANCES:
+		ret = isst_if_get_tpmi_instance_count(argp);
+		break;
+	default:
+		break;
+	}
+	mutex_unlock(&isst_tpmi_dev_lock);
+
+	return ret;
+}
+
+int tpmi_sst_dev_add(struct auxiliary_device *auxdev)
+{
+	struct intel_tpmi_plat_info *plat_info;
+	struct tpmi_sst_struct *tpmi_sst;
+	int i, pkg = 0, inst = 0;
+	int num_resources;
+
+	plat_info = tpmi_get_platform_data(auxdev);
+	if (!plat_info) {
+		dev_err(&auxdev->dev, "No platform info\n");
+		return -EINVAL;
+	}
+
+	pkg = plat_info->package_id;
+	if (pkg >= topology_max_packages()) {
+		dev_err(&auxdev->dev, "Invalid package id :%x\n", pkg);
+		return -EINVAL;
+	}
+
+	if (isst_common.sst_inst[pkg])
+		return -EEXIST;
+
+	num_resources = tpmi_get_resource_count(auxdev);
+
+	if (!num_resources)
+		return -EINVAL;
+
+	tpmi_sst = devm_kzalloc(&auxdev->dev, sizeof(*tpmi_sst), GFP_KERNEL);
+	if (!tpmi_sst)
+		return -ENOMEM;
+
+	tpmi_sst->power_domain_info = devm_kcalloc(&auxdev->dev, num_resources,
+						   sizeof(*tpmi_sst->power_domain_info),
+						   GFP_KERNEL);
+	if (!tpmi_sst->power_domain_info)
+		return -ENOMEM;
+
+	tpmi_sst->number_of_power_domains = num_resources;
+
+	for (i = 0; i < num_resources; ++i) {
+		struct resource *res;
+
+		res = tpmi_get_resource_at_index(auxdev, i);
+		if (!res) {
+			tpmi_sst->power_domain_info[i].sst_base = NULL;
+			continue;
+		}
+
+		tpmi_sst->power_domain_info[i].package_id = pkg;
+		tpmi_sst->power_domain_info[i].power_domain_id = i;
+		tpmi_sst->power_domain_info[i].auxdev = auxdev;
+		tpmi_sst->power_domain_info[i].sst_base = devm_ioremap_resource(&auxdev->dev, res);
+		if (IS_ERR(tpmi_sst->power_domain_info[i].sst_base))
+			return PTR_ERR(tpmi_sst->power_domain_info[i].sst_base);
+
+		++inst;
+	}
+
+	if (!inst)
+		return -ENODEV;
+
+	tpmi_sst->package_id = pkg;
+	auxiliary_set_drvdata(auxdev, tpmi_sst);
+
+	mutex_lock(&isst_tpmi_dev_lock);
+	if (isst_common.max_index < pkg)
+		isst_common.max_index = pkg;
+	isst_common.sst_inst[pkg] = tpmi_sst;
+	mutex_unlock(&isst_tpmi_dev_lock);
+
+	return 0;
+}
+EXPORT_SYMBOL_NS_GPL(tpmi_sst_dev_add, INTEL_TPMI_SST);
+
+void tpmi_sst_dev_remove(struct auxiliary_device *auxdev)
+{
+	struct tpmi_sst_struct *tpmi_sst = auxiliary_get_drvdata(auxdev);
+
+	mutex_lock(&isst_tpmi_dev_lock);
+	isst_common.sst_inst[tpmi_sst->package_id] = NULL;
+	mutex_unlock(&isst_tpmi_dev_lock);
+}
+EXPORT_SYMBOL_NS_GPL(tpmi_sst_dev_remove, INTEL_TPMI_SST);
+
+#define ISST_TPMI_API_VERSION	0x02
+
+int tpmi_sst_init(void)
+{
+	struct isst_if_cmd_cb cb;
+	int ret = 0;
+
+	mutex_lock(&isst_tpmi_dev_lock);
+
+	if (isst_core_usage_count) {
+		++isst_core_usage_count;
+		goto init_done;
+	}
+
+	isst_common.sst_inst = kcalloc(topology_max_packages(),
+				       sizeof(*isst_common.sst_inst),
+				       GFP_KERNEL);
+	if (!isst_common.sst_inst)
+		return -ENOMEM;
+
+	memset(&cb, 0, sizeof(cb));
+	cb.cmd_size = sizeof(struct isst_if_io_reg);
+	cb.offset = offsetof(struct isst_if_io_regs, io_reg);
+	cb.cmd_callback = NULL;
+	cb.api_version = ISST_TPMI_API_VERSION;
+	cb.def_ioctl = isst_if_def_ioctl;
+	cb.owner = THIS_MODULE;
+	ret = isst_if_cdev_register(ISST_IF_DEV_TPMI, &cb);
+	if (ret)
+		kfree(isst_common.sst_inst);
+init_done:
+	mutex_unlock(&isst_tpmi_dev_lock);
+	return ret;
+}
+EXPORT_SYMBOL_NS_GPL(tpmi_sst_init, INTEL_TPMI_SST);
+
+void tpmi_sst_exit(void)
+{
+	mutex_lock(&isst_tpmi_dev_lock);
+	if (isst_core_usage_count)
+		--isst_core_usage_count;
+
+	if (!isst_core_usage_count) {
+		isst_if_cdev_unregister(ISST_IF_DEV_TPMI);
+		kfree(isst_common.sst_inst);
+	}
+	mutex_unlock(&isst_tpmi_dev_lock);
+}
+EXPORT_SYMBOL_NS_GPL(tpmi_sst_exit, INTEL_TPMI_SST);
+
+MODULE_IMPORT_NS(INTEL_TPMI);
+MODULE_IMPORT_NS(INTEL_TPMI_POWER_DOMAIN);
+
+MODULE_LICENSE("GPL");
diff --git a/drivers/platform/x86/intel/speed_select_if/isst_tpmi_core.h b/drivers/platform/x86/intel/speed_select_if/isst_tpmi_core.h
new file mode 100644
index 000000000000..356cb02273b1
--- /dev/null
+++ b/drivers/platform/x86/intel/speed_select_if/isst_tpmi_core.h
@@ -0,0 +1,16 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Intel Speed Select Interface: Drivers Internal defines
+ * Copyright (c) 2023, Intel Corporation.
+ * All rights reserved.
+ *
+ */
+
+#ifndef _ISST_TPMI_CORE_H
+#define _ISST_TPMI_CORE_H
+
+int tpmi_sst_init(void);
+void tpmi_sst_exit(void);
+int tpmi_sst_dev_add(struct auxiliary_device *auxdev);
+void tpmi_sst_dev_remove(struct auxiliary_device *auxdev);
+#endif
diff --git a/include/uapi/linux/isst_if.h b/include/uapi/linux/isst_if.h
index ba078f8e9add..bf32d959f6e8 100644
--- a/include/uapi/linux/isst_if.h
+++ b/include/uapi/linux/isst_if.h
@@ -163,10 +163,28 @@ struct isst_if_msr_cmds {
 	struct isst_if_msr_cmd msr_cmd[1];
 };
 
+/**
+ * struct isst_tpmi_instance_count - Get number of TPMI instances per socket
+ * @socket_id:	Socket/package id
+ * @count:	Number of instances
+ * @valid_mask: Mask of instances as there can be holes
+ *
+ * Structure used to get TPMI instances information using
+ * IOCTL ISST_IF_COUNT_TPMI_INSTANCES.
+ */
+struct isst_tpmi_instance_count {
+	__u8 socket_id;
+	__u8 count;
+	__u16 valid_mask;
+};
+
 #define ISST_IF_MAGIC			0xFE
 #define ISST_IF_GET_PLATFORM_INFO	_IOR(ISST_IF_MAGIC, 0, struct isst_if_platform_info *)
 #define ISST_IF_GET_PHY_ID		_IOWR(ISST_IF_MAGIC, 1, struct isst_if_cpu_map *)
 #define ISST_IF_IO_CMD		_IOW(ISST_IF_MAGIC, 2, struct isst_if_io_regs *)
 #define ISST_IF_MBOX_COMMAND	_IOWR(ISST_IF_MAGIC, 3, struct isst_if_mbox_cmds *)
 #define ISST_IF_MSR_COMMAND	_IOWR(ISST_IF_MAGIC, 4, struct isst_if_msr_cmds *)
+
+#define ISST_IF_COUNT_TPMI_INSTANCES	_IOR(ISST_IF_MAGIC, 5, struct isst_tpmi_instance_count *)
+
 #endif