diff --git a/drivers/media/platform/qcom/iris/Makefile b/drivers/media/platform/qcom/iris/Makefile
index 792f1d6ac8f3..76ca5287c49f 100644
--- a/drivers/media/platform/qcom/iris/Makefile
+++ b/drivers/media/platform/qcom/iris/Makefile
@@ -1,7 +1,11 @@
 iris-objs += iris_core.o \
              iris_firmware.o \
+             iris_hfi_common.o \
              iris_hfi_gen1_command.o \
+             iris_hfi_gen1_response.o \
              iris_hfi_gen2_command.o \
+             iris_hfi_gen2_packet.o \
+             iris_hfi_gen2_response.o \
              iris_hfi_queue.o \
              iris_platform_sm8550.o \
              iris_probe.o \
diff --git a/drivers/media/platform/qcom/iris/iris_core.c b/drivers/media/platform/qcom/iris/iris_core.c
index 5ad66ac113ae..7e19bdd0a19b 100644
--- a/drivers/media/platform/qcom/iris/iris_core.c
+++ b/drivers/media/platform/qcom/iris/iris_core.c
@@ -17,6 +17,24 @@ void iris_core_deinit(struct iris_core *core)
 	mutex_unlock(&core->lock);
 }
 
+static int iris_wait_for_system_response(struct iris_core *core)
+{
+	u32 hw_response_timeout_val = core->iris_platform_data->hw_response_timeout;
+	int ret;
+
+	if (core->state == IRIS_CORE_ERROR)
+		return -EIO;
+
+	ret = wait_for_completion_timeout(&core->core_init_done,
+					  msecs_to_jiffies(hw_response_timeout_val));
+	if (!ret) {
+		core->state = IRIS_CORE_ERROR;
+		return -ETIMEDOUT;
+	}
+
+	return 0;
+}
+
 int iris_core_init(struct iris_core *core)
 {
 	int ret;
@@ -44,9 +62,13 @@ int iris_core_init(struct iris_core *core)
 	if (ret)
 		goto error_unload_fw;
 
+	ret = iris_hfi_core_init(core);
+	if (ret)
+		goto error_unload_fw;
+
 	mutex_unlock(&core->lock);
 
-	return 0;
+	return iris_wait_for_system_response(core);
 
 error_unload_fw:
 	iris_fw_unload(core);
diff --git a/drivers/media/platform/qcom/iris/iris_core.h b/drivers/media/platform/qcom/iris/iris_core.h
index 5fd11c3f99c5..6c4d0bc0c36b 100644
--- a/drivers/media/platform/qcom/iris/iris_core.h
+++ b/drivers/media/platform/qcom/iris/iris_core.h
@@ -9,6 +9,7 @@
 #include <linux/types.h>
 #include <media/v4l2-device.h>
 
+#include "iris_hfi_common.h"
 #include "iris_hfi_queue.h"
 #include "iris_platform_common.h"
 #include "iris_state.h"
@@ -19,6 +20,9 @@ struct icc_info {
 	u32			bw_max_kbps;
 };
 
+#define IRIS_FW_VERSION_LENGTH		128
+#define IFACEQ_CORE_PKT_SIZE		(1024 * 4)
+
 /**
  * struct iris_core - holds core parameters valid for all instances
  *
@@ -45,6 +49,14 @@ struct icc_info {
  * @message_queue: shared interface queue to receive responses from firmware
  * @debug_queue: shared interface queue to receive debug info from firmware
  * @lock: a lock for this strucure
+ * @response_packet: a pointer to response packet from fw to driver
+ * @header_id: id of packet header
+ * @packet_id: id of packet
+ * @hfi_ops: iris hfi command ops
+ * @hfi_response_ops: iris hfi response ops
+ * @core_init_done: structure of signal completion for system response
+ * @intr_status: interrupt status
+ * @sys_error_handler: a delayed work for handling system fatal error
  */
 
 struct iris_core {
@@ -71,6 +83,14 @@ struct iris_core {
 	struct iris_iface_q_info		message_queue;
 	struct iris_iface_q_info		debug_queue;
 	struct mutex				lock; /* lock for core related operations */
+	u8					*response_packet;
+	u32					header_id;
+	u32					packet_id;
+	const struct iris_hfi_command_ops	*hfi_ops;
+	const struct iris_hfi_response_ops	*hfi_response_ops;
+	struct completion			core_init_done;
+	u32					intr_status;
+	struct delayed_work			sys_error_handler;
 };
 
 int iris_core_init(struct iris_core *core);
diff --git a/drivers/media/platform/qcom/iris/iris_hfi_common.c b/drivers/media/platform/qcom/iris/iris_hfi_common.c
new file mode 100644
index 000000000000..a19b988c9a88
--- /dev/null
+++ b/drivers/media/platform/qcom/iris/iris_hfi_common.c
@@ -0,0 +1,50 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights reserved.
+ */
+
+#include "iris_core.h"
+#include "iris_hfi_common.h"
+#include "iris_vpu_common.h"
+
+int iris_hfi_core_init(struct iris_core *core)
+{
+	const struct iris_hfi_command_ops *hfi_ops = core->hfi_ops;
+	int ret;
+
+	ret = hfi_ops->sys_init(core);
+	if (ret)
+		return ret;
+
+	ret = hfi_ops->sys_image_version(core);
+	if (ret)
+		return ret;
+
+	return hfi_ops->sys_interframe_powercollapse(core);
+}
+
+irqreturn_t iris_hfi_isr(int irq, void *data)
+{
+	disable_irq_nosync(irq);
+
+	return IRQ_WAKE_THREAD;
+}
+
+irqreturn_t iris_hfi_isr_handler(int irq, void *data)
+{
+	struct iris_core *core = data;
+
+	if (!core)
+		return IRQ_NONE;
+
+	mutex_lock(&core->lock);
+	iris_vpu_clear_interrupt(core);
+	mutex_unlock(&core->lock);
+
+	core->hfi_response_ops->hfi_response_handler(core);
+
+	if (!iris_vpu_watchdog(core, core->intr_status))
+		enable_irq(irq);
+
+	return IRQ_HANDLED;
+}
diff --git a/drivers/media/platform/qcom/iris/iris_hfi_common.h b/drivers/media/platform/qcom/iris/iris_hfi_common.h
new file mode 100644
index 000000000000..c3d5b899cf60
--- /dev/null
+++ b/drivers/media/platform/qcom/iris/iris_hfi_common.h
@@ -0,0 +1,60 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights reserved.
+ */
+
+#ifndef _IRIS_HFI_COMMON_H_
+#define _IRIS_HFI_COMMON_H_
+
+#include <linux/types.h>
+#include <media/v4l2-device.h>
+
+struct iris_core;
+
+enum hfi_packet_port_type {
+	HFI_PORT_NONE		= 0x00000000,
+	HFI_PORT_BITSTREAM	= 0x00000001,
+	HFI_PORT_RAW		= 0x00000002,
+};
+
+enum hfi_packet_payload_info {
+	HFI_PAYLOAD_NONE	= 0x00000000,
+	HFI_PAYLOAD_U32		= 0x00000001,
+	HFI_PAYLOAD_S32		= 0x00000002,
+	HFI_PAYLOAD_U64		= 0x00000003,
+	HFI_PAYLOAD_S64		= 0x00000004,
+	HFI_PAYLOAD_STRUCTURE	= 0x00000005,
+	HFI_PAYLOAD_BLOB	= 0x00000006,
+	HFI_PAYLOAD_STRING	= 0x00000007,
+	HFI_PAYLOAD_Q16		= 0x00000008,
+	HFI_PAYLOAD_U32_ENUM	= 0x00000009,
+	HFI_PAYLOAD_32_PACKED	= 0x0000000a,
+	HFI_PAYLOAD_U32_ARRAY	= 0x0000000b,
+	HFI_PAYLOAD_S32_ARRAY	= 0x0000000c,
+	HFI_PAYLOAD_64_PACKED	= 0x0000000d,
+};
+
+enum hfi_packet_host_flags {
+	HFI_HOST_FLAGS_NONE			= 0x00000000,
+	HFI_HOST_FLAGS_INTR_REQUIRED		= 0x00000001,
+	HFI_HOST_FLAGS_RESPONSE_REQUIRED	= 0x00000002,
+	HFI_HOST_FLAGS_NON_DISCARDABLE		= 0x00000004,
+	HFI_HOST_FLAGS_GET_PROPERTY		= 0x00000008,
+};
+
+struct iris_hfi_command_ops {
+	int (*sys_init)(struct iris_core *core);
+	int (*sys_image_version)(struct iris_core *core);
+	int (*sys_interframe_powercollapse)(struct iris_core *core);
+};
+
+struct iris_hfi_response_ops {
+	void (*hfi_response_handler)(struct iris_core *core);
+};
+
+int iris_hfi_core_init(struct iris_core *core);
+
+irqreturn_t iris_hfi_isr(int irq, void *data);
+irqreturn_t iris_hfi_isr_handler(int irq, void *data);
+
+#endif
diff --git a/drivers/media/platform/qcom/iris/iris_hfi_gen1.h b/drivers/media/platform/qcom/iris/iris_hfi_gen1.h
index b02f629a9cdc..15edbb359c71 100644
--- a/drivers/media/platform/qcom/iris/iris_hfi_gen1.h
+++ b/drivers/media/platform/qcom/iris/iris_hfi_gen1.h
@@ -6,8 +6,11 @@
 #ifndef _IRIS_HFI_GEN1_H_
 #define _IRIS_HFI_GEN1_H_
 
+struct iris_core;
 struct iris_inst;
 
+void iris_hfi_gen1_command_ops_init(struct iris_core *core);
+void iris_hfi_gen1_response_ops_init(struct iris_core *core);
 struct iris_inst *iris_hfi_gen1_get_instance(void);
 
 #endif
diff --git a/drivers/media/platform/qcom/iris/iris_hfi_gen1_command.c b/drivers/media/platform/qcom/iris/iris_hfi_gen1_command.c
index 20c68f4ffb72..07007d8812ba 100644
--- a/drivers/media/platform/qcom/iris/iris_hfi_gen1_command.c
+++ b/drivers/media/platform/qcom/iris/iris_hfi_gen1_command.c
@@ -4,8 +4,69 @@
  */
 
 #include "iris_hfi_gen1.h"
+#include "iris_hfi_gen1_defines.h"
 #include "iris_instance.h"
 
+static int iris_hfi_gen1_sys_init(struct iris_core *core)
+{
+	struct hfi_sys_init_pkt sys_init_pkt;
+
+	sys_init_pkt.hdr.size = sizeof(sys_init_pkt);
+	sys_init_pkt.hdr.pkt_type = HFI_CMD_SYS_INIT;
+	sys_init_pkt.arch_type = HFI_VIDEO_ARCH_OX;
+
+	return iris_hfi_queue_cmd_write_locked(core, &sys_init_pkt, sys_init_pkt.hdr.size);
+}
+
+static int iris_hfi_gen1_sys_image_version(struct iris_core *core)
+{
+	struct hfi_sys_get_property_pkt packet;
+
+	packet.hdr.size = sizeof(packet);
+	packet.hdr.pkt_type = HFI_CMD_SYS_GET_PROPERTY;
+	packet.num_properties = 1;
+	packet.data = HFI_PROPERTY_SYS_IMAGE_VERSION;
+
+	return iris_hfi_queue_cmd_write_locked(core, &packet, packet.hdr.size);
+}
+
+static int iris_hfi_gen1_sys_interframe_powercollapse(struct iris_core *core)
+{
+	struct hfi_sys_set_property_pkt *pkt;
+	struct hfi_enable *hfi;
+	u32 packet_size;
+	int ret;
+
+	packet_size = struct_size(pkt, data, 1) + sizeof(*hfi);
+	pkt = kzalloc(packet_size, GFP_KERNEL);
+	if (!pkt)
+		return -ENOMEM;
+
+	hfi = (struct hfi_enable *)&pkt->data[1];
+
+	pkt->hdr.size = packet_size;
+	pkt->hdr.pkt_type = HFI_CMD_SYS_SET_PROPERTY;
+	pkt->num_properties = 1;
+	pkt->data[0] = HFI_PROPERTY_SYS_CODEC_POWER_PLANE_CTRL;
+	hfi->enable = true;
+
+	ret = iris_hfi_queue_cmd_write_locked(core, pkt, pkt->hdr.size);
+	kfree(pkt);
+
+	return ret;
+}
+
+static const struct iris_hfi_command_ops iris_hfi_gen1_command_ops = {
+	.sys_init = iris_hfi_gen1_sys_init,
+	.sys_image_version = iris_hfi_gen1_sys_image_version,
+	.sys_interframe_powercollapse = iris_hfi_gen1_sys_interframe_powercollapse,
+};
+
+void iris_hfi_gen1_command_ops_init(struct iris_core *core)
+{
+	core->hfi_ops = &iris_hfi_gen1_command_ops;
+}
+
 struct iris_inst *iris_hfi_gen1_get_instance(void)
 {
 	return kzalloc(sizeof(struct iris_inst), GFP_KERNEL);
diff --git a/drivers/media/platform/qcom/iris/iris_hfi_gen1_defines.h b/drivers/media/platform/qcom/iris/iris_hfi_gen1_defines.h
new file mode 100644
index 000000000000..5c07d6a29863
--- /dev/null
+++ b/drivers/media/platform/qcom/iris/iris_hfi_gen1_defines.h
@@ -0,0 +1,94 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights reserved.
+ */
+
+#ifndef _IRIS_HFI_GEN1_DEFINES_H_
+#define _IRIS_HFI_GEN1_DEFINES_H_
+
+#include <linux/types.h>
+
+#define HFI_VIDEO_ARCH_OX				0x1
+#define HFI_ERR_NONE					0x0
+
+#define HFI_CMD_SYS_INIT				0x10001
+#define HFI_CMD_SYS_SET_PROPERTY			0x10005
+#define HFI_CMD_SYS_GET_PROPERTY			0x10006
+
+#define HFI_PROPERTY_SYS_CODEC_POWER_PLANE_CTRL		0x5
+#define HFI_PROPERTY_SYS_IMAGE_VERSION			0x6
+
+#define HFI_EVENT_SYS_ERROR				0x1
+
+#define HFI_MSG_SYS_INIT				0x20001
+#define HFI_MSG_SYS_COV					0x20009
+#define HFI_MSG_SYS_PROPERTY_INFO			0x2000a
+
+#define HFI_MSG_EVENT_NOTIFY				0x21001
+
+struct hfi_pkt_hdr {
+	u32 size;
+	u32 pkt_type;
+};
+
+struct hfi_sys_init_pkt {
+	struct hfi_pkt_hdr hdr;
+	u32 arch_type;
+};
+
+struct hfi_sys_set_property_pkt {
+	struct hfi_pkt_hdr hdr;
+	u32 num_properties;
+	u32 data[];
+};
+
+struct hfi_sys_get_property_pkt {
+	struct hfi_pkt_hdr hdr;
+	u32 num_properties;
+	u32 data;
+};
+
+struct hfi_msg_event_notify_pkt {
+	struct hfi_pkt_hdr hdr;
+	u32 event_id;
+	u32 event_data1;
+	u32 event_data2;
+	u32 ext_event_data[];
+};
+
+struct hfi_msg_sys_init_done_pkt {
+	struct hfi_pkt_hdr hdr;
+	u32 error_type;
+	u32 num_properties;
+	u32 data[];
+};
+
+struct hfi_msg_sys_property_info_pkt {
+	struct hfi_pkt_hdr hdr;
+	u32 num_properties;
+	u32 property;
+	u8 data[];
+};
+
+struct hfi_enable {
+	u32 enable;
+};
+
+struct hfi_msg_sys_debug_pkt {
+	struct hfi_pkt_hdr hdr;
+	u32 msg_type;
+	u32 msg_size;
+	u32 time_stamp_hi;
+	u32 time_stamp_lo;
+	u8 msg_data[];
+};
+
+struct hfi_msg_sys_coverage_pkt {
+	struct hfi_pkt_hdr hdr;
+	u32 msg_size;
+	u32 time_stamp_hi;
+	u32 time_stamp_lo;
+	u8 msg_data[];
+};
+
+#endif
diff --git a/drivers/media/platform/qcom/iris/iris_hfi_gen1_response.c b/drivers/media/platform/qcom/iris/iris_hfi_gen1_response.c
new file mode 100644
index 000000000000..78fefa4176f9
--- /dev/null
+++ b/drivers/media/platform/qcom/iris/iris_hfi_gen1_response.c
@@ -0,0 +1,176 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights reserved.
+ */
+
+#include "iris_hfi_gen1.h"
+#include "iris_hfi_gen1_defines.h"
+#include "iris_instance.h"
+
+static void
+iris_hfi_gen1_sys_event_notify(struct iris_core *core, void *packet)
+{
+	struct hfi_msg_event_notify_pkt *pkt = packet;
+
+	if (pkt->event_id == HFI_EVENT_SYS_ERROR)
+		dev_err(core->dev, "sys error (type: %x, data1:%x, data2:%x)\n",
+			pkt->event_id, pkt->event_data1, pkt->event_data2);
+
+	core->state = IRIS_CORE_ERROR;
+	schedule_delayed_work(&core->sys_error_handler, msecs_to_jiffies(10));
+}
+
+static void iris_hfi_gen1_sys_init_done(struct iris_core *core, void *packet)
+{
+	struct hfi_msg_sys_init_done_pkt *pkt = packet;
+
+	if (pkt->error_type != HFI_ERR_NONE) {
+		core->state = IRIS_CORE_ERROR;
+		return;
+	}
+
+	complete(&core->core_init_done);
+}
+
+static void
+iris_hfi_gen1_sys_get_prop_image_version(struct iris_core *core,
+					 struct hfi_msg_sys_property_info_pkt *pkt)
+{
+	int req_bytes = pkt->hdr.size - sizeof(*pkt);
+	char fw_version[IRIS_FW_VERSION_LENGTH];
+	u8 *str_image_version;
+	u32 i;
+
+	if (req_bytes < IRIS_FW_VERSION_LENGTH - 1 || !pkt->data[0] || pkt->num_properties > 1) {
+		dev_err(core->dev, "bad packet\n");
+		return;
+	}
+
+	str_image_version = pkt->data;
+	if (!str_image_version) {
+		dev_err(core->dev, "firmware version not available\n");
+		return;
+	}
+
+	for (i = 0; i < IRIS_FW_VERSION_LENGTH - 1; i++) {
+		if (str_image_version[i] != '\0')
+			fw_version[i] = str_image_version[i];
+		else
+			fw_version[i] = ' ';
+	}
+	fw_version[i] = '\0';
+	dev_dbg(core->dev, "firmware version: %s\n", fw_version);
+}
+
+static void iris_hfi_gen1_sys_property_info(struct iris_core *core, void *packet)
+{
+	struct hfi_msg_sys_property_info_pkt *pkt = packet;
+
+	if (!pkt->num_properties) {
+		dev_dbg(core->dev, "no properties\n");
+		return;
+	}
+
+	switch (pkt->property) {
+	case HFI_PROPERTY_SYS_IMAGE_VERSION:
+		iris_hfi_gen1_sys_get_prop_image_version(core, pkt);
+		break;
+	default:
+		dev_dbg(core->dev, "unknown property data\n");
+		break;
+	}
+}
+
+struct iris_hfi_gen1_response_pkt_info {
+	u32 pkt;
+	u32 pkt_sz;
+};
+
+static const struct iris_hfi_gen1_response_pkt_info pkt_infos[] = {
+	{
+	 .pkt = HFI_MSG_EVENT_NOTIFY,
+	 .pkt_sz = sizeof(struct hfi_msg_event_notify_pkt),
+	},
+	{
+	 .pkt = HFI_MSG_SYS_INIT,
+	 .pkt_sz = sizeof(struct hfi_msg_sys_init_done_pkt),
+	},
+	{
+	 .pkt = HFI_MSG_SYS_PROPERTY_INFO,
+	 .pkt_sz = sizeof(struct hfi_msg_sys_property_info_pkt),
+	},
+};
+
+static void iris_hfi_gen1_handle_response(struct iris_core *core, void *response)
+{
+	struct hfi_pkt_hdr *hdr = (struct hfi_pkt_hdr *)response;
+	const struct iris_hfi_gen1_response_pkt_info *pkt_info;
+	struct device *dev = core->dev;
+	bool found = false;
+	u32 i;
+
+	for (i = 0; i < ARRAY_SIZE(pkt_infos); i++) {
+		pkt_info = &pkt_infos[i];
+		if (pkt_info->pkt != hdr->pkt_type)
+			continue;
+		found = true;
+		break;
+	}
+
+	if (!found || hdr->size < pkt_info->pkt_sz) {
+		dev_err(dev, "bad packet size (%d should be %d, pkt type:%x, found %d)\n",
+			hdr->size, pkt_info->pkt_sz, hdr->pkt_type, found);
+
+		return;
+	}
+
+	switch (hdr->pkt_type) {
+	case HFI_MSG_SYS_INIT:
+		iris_hfi_gen1_sys_init_done(core, hdr);
+		break;
+	case HFI_MSG_SYS_PROPERTY_INFO:
+		iris_hfi_gen1_sys_property_info(core, hdr);
+		break;
+	case HFI_MSG_EVENT_NOTIFY:
+		iris_hfi_gen1_sys_event_notify(core, hdr);
+		break;
+	default:
+		break;
+	}
+}
+
+static void iris_hfi_gen1_flush_debug_queue(struct iris_core *core, u8 *packet)
+{
+	struct hfi_msg_sys_coverage_pkt *pkt;
+
+	while (!iris_hfi_queue_dbg_read(core, packet)) {
+		pkt = (struct hfi_msg_sys_coverage_pkt *)packet;
+
+		if (pkt->hdr.pkt_type != HFI_MSG_SYS_COV) {
+			struct hfi_msg_sys_debug_pkt *pkt =
+				(struct hfi_msg_sys_debug_pkt *)packet;
+
+			dev_dbg(core->dev, "%s", pkt->msg_data);
+		}
+	}
+}
+
+static void iris_hfi_gen1_response_handler(struct iris_core *core)
+{
+	memset(core->response_packet, 0, sizeof(struct hfi_pkt_hdr));
+	while (!iris_hfi_queue_msg_read(core, core->response_packet)) {
+		iris_hfi_gen1_handle_response(core, core->response_packet);
+		memset(core->response_packet, 0, sizeof(struct hfi_pkt_hdr));
+	}
+
+	iris_hfi_gen1_flush_debug_queue(core, core->response_packet);
+}
+
+static const struct iris_hfi_response_ops iris_hfi_gen1_response_ops = {
+	.hfi_response_handler = iris_hfi_gen1_response_handler,
+};
+
+void iris_hfi_gen1_response_ops_init(struct iris_core *core)
+{
+	core->hfi_response_ops = &iris_hfi_gen1_response_ops;
+}
diff --git a/drivers/media/platform/qcom/iris/iris_hfi_gen2.h b/drivers/media/platform/qcom/iris/iris_hfi_gen2.h
index 4f9748cbe0e3..6ec83984fda9 100644
--- a/drivers/media/platform/qcom/iris/iris_hfi_gen2.h
+++ b/drivers/media/platform/qcom/iris/iris_hfi_gen2.h
@@ -8,6 +8,8 @@
 
 #include "iris_instance.h"
 
+struct iris_core;
+
 /**
  * struct iris_inst_hfi_gen2 - holds per video instance parameters for hfi_gen2
  *
@@ -17,6 +19,8 @@ struct iris_inst_hfi_gen2 {
 	struct iris_inst		inst;
 };
 
+void iris_hfi_gen2_command_ops_init(struct iris_core *core);
+void iris_hfi_gen2_response_ops_init(struct iris_core *core);
 struct iris_inst *iris_hfi_gen2_get_instance(void);
 
 #endif
diff --git a/drivers/media/platform/qcom/iris/iris_hfi_gen2_command.c b/drivers/media/platform/qcom/iris/iris_hfi_gen2_command.c
index 3ee33c8befae..5eaebe170214 100644
--- a/drivers/media/platform/qcom/iris/iris_hfi_gen2_command.c
+++ b/drivers/media/platform/qcom/iris/iris_hfi_gen2_command.c
@@ -4,6 +4,80 @@
  */
 
 #include "iris_hfi_gen2.h"
+#include "iris_hfi_gen2_packet.h"
+
+#define NUM_SYS_INIT_PACKETS 8
+
+#define SYS_INIT_PKT_SIZE (sizeof(struct iris_hfi_header) + \
+	NUM_SYS_INIT_PACKETS * (sizeof(struct iris_hfi_packet) + sizeof(u32)))
+
+#define SYS_IFPC_PKT_SIZE (sizeof(struct iris_hfi_header) + \
+	sizeof(struct iris_hfi_packet) + sizeof(u32))
+
+#define SYS_NO_PAYLOAD_PKT_SIZE (sizeof(struct iris_hfi_header) + \
+	sizeof(struct iris_hfi_packet))
+
+static int iris_hfi_gen2_sys_init(struct iris_core *core)
+{
+	struct iris_hfi_header *hdr;
+	int ret;
+
+	hdr = kzalloc(SYS_INIT_PKT_SIZE, GFP_KERNEL);
+	if (!hdr)
+		return -ENOMEM;
+
+	iris_hfi_gen2_packet_sys_init(core, hdr);
+	ret = iris_hfi_queue_cmd_write_locked(core, hdr, hdr->size);
+
+	kfree(hdr);
+
+	return ret;
+}
+
+static int iris_hfi_gen2_sys_image_version(struct iris_core *core)
+{
+	struct iris_hfi_header *hdr;
+	int ret;
+
+	hdr = kzalloc(SYS_NO_PAYLOAD_PKT_SIZE, GFP_KERNEL);
+	if (!hdr)
+		return -ENOMEM;
+
+	iris_hfi_gen2_packet_image_version(core, hdr);
+	ret = iris_hfi_queue_cmd_write_locked(core, hdr, hdr->size);
+
+	kfree(hdr);
+
+	return ret;
+}
+
+static int iris_hfi_gen2_sys_interframe_powercollapse(struct iris_core *core)
+{
+	struct iris_hfi_header *hdr;
+	int ret;
+
+	hdr = kzalloc(SYS_IFPC_PKT_SIZE, GFP_KERNEL);
+	if (!hdr)
+		return -ENOMEM;
+
+	iris_hfi_gen2_packet_sys_interframe_powercollapse(core, hdr);
+	ret = iris_hfi_queue_cmd_write_locked(core, hdr, hdr->size);
+
+	kfree(hdr);
+
+	return ret;
+}
+
+static const struct iris_hfi_command_ops iris_hfi_gen2_command_ops = {
+	.sys_init = iris_hfi_gen2_sys_init,
+	.sys_image_version = iris_hfi_gen2_sys_image_version,
+	.sys_interframe_powercollapse = iris_hfi_gen2_sys_interframe_powercollapse,
+};
+
+void iris_hfi_gen2_command_ops_init(struct iris_core *core)
+{
+	core->hfi_ops = &iris_hfi_gen2_command_ops;
+}
 
 struct iris_inst *iris_hfi_gen2_get_instance(void)
 {
diff --git a/drivers/media/platform/qcom/iris/iris_hfi_gen2_defines.h b/drivers/media/platform/qcom/iris/iris_hfi_gen2_defines.h
new file mode 100644
index 000000000000..3e3e4ddfe21f
--- /dev/null
+++ b/drivers/media/platform/qcom/iris/iris_hfi_gen2_defines.h
@@ -0,0 +1,46 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights reserved.
+ */
+
+#ifndef _IRIS_HFI_GEN2_DEFINES_H_
+#define _IRIS_HFI_GEN2_DEFINES_H_
+
+#include <linux/types.h>
+
+#define HFI_VIDEO_ARCH_LX			0x1
+
+#define HFI_CMD_BEGIN				0x01000000
+#define HFI_CMD_INIT				0x01000001
+#define HFI_CMD_END				0x01FFFFFF
+
+#define HFI_PROP_BEGIN				0x03000000
+#define HFI_PROP_IMAGE_VERSION			0x03000001
+#define HFI_PROP_INTRA_FRAME_POWER_COLLAPSE	0x03000002
+#define HFI_PROP_UBWC_MAX_CHANNELS		0x03000003
+#define HFI_PROP_UBWC_MAL_LENGTH		0x03000004
+#define HFI_PROP_UBWC_HBB			0x03000005
+#define HFI_PROP_UBWC_BANK_SWZL_LEVEL1		0x03000006
+#define HFI_PROP_UBWC_BANK_SWZL_LEVEL2		0x03000007
+#define HFI_PROP_UBWC_BANK_SWZL_LEVEL3		0x03000008
+#define HFI_PROP_UBWC_BANK_SPREADING		0x03000009
+#define HFI_PROP_END				0x03FFFFFF
+
+#define HFI_SYSTEM_ERROR_BEGIN			0x05000000
+#define HFI_SYS_ERROR_WD_TIMEOUT		0x05000001
+#define HFI_SYSTEM_ERROR_END			0x05FFFFFF
+
+enum hfi_packet_firmware_flags {
+	HFI_FW_FLAGS_SUCCESS			= 0x00000001,
+	HFI_FW_FLAGS_INFORMATION		= 0x00000002,
+	HFI_FW_FLAGS_SESSION_ERROR		= 0x00000004,
+	HFI_FW_FLAGS_SYSTEM_ERROR		= 0x00000008,
+};
+
+struct hfi_debug_header {
+	u32 size;
+	u32 debug_level;
+	u32 reserved[2];
+};
+
+#endif
diff --git a/drivers/media/platform/qcom/iris/iris_hfi_gen2_packet.c b/drivers/media/platform/qcom/iris/iris_hfi_gen2_packet.c
new file mode 100644
index 000000000000..986013aa62df
--- /dev/null
+++ b/drivers/media/platform/qcom/iris/iris_hfi_gen2_packet.c
@@ -0,0 +1,161 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights reserved.
+ */
+
+#include "iris_hfi_common.h"
+#include "iris_hfi_gen2.h"
+#include "iris_hfi_gen2_packet.h"
+
+static void iris_hfi_gen2_create_header(struct iris_hfi_header *hdr,
+					u32 session_id, u32 header_id)
+{
+	memset(hdr, 0, sizeof(*hdr));
+
+	hdr->size = sizeof(*hdr);
+	hdr->session_id = session_id;
+	hdr->header_id = header_id;
+	hdr->num_packets = 0;
+}
+
+static void iris_hfi_gen2_create_packet(struct iris_hfi_header *hdr, u32 pkt_type,
+					u32 pkt_flags, u32 payload_type, u32 port,
+					u32 packet_id, void *payload, u32 payload_size)
+{
+	struct iris_hfi_packet *pkt = (struct iris_hfi_packet *)((u8 *)hdr + hdr->size);
+	u32 pkt_size = sizeof(*pkt) + payload_size;
+
+	memset(pkt, 0, pkt_size);
+	pkt->size = pkt_size;
+	pkt->type = pkt_type;
+	pkt->flags = pkt_flags;
+	pkt->payload_info = payload_type;
+	pkt->port = port;
+	pkt->packet_id = packet_id;
+	if (payload_size)
+		memcpy(&pkt->payload[0], payload, payload_size);
+
+	hdr->num_packets++;
+	hdr->size += pkt->size;
+}
+
+void iris_hfi_gen2_packet_sys_init(struct iris_core *core, struct iris_hfi_header *hdr)
+{
+	u32 payload = 0;
+
+	iris_hfi_gen2_create_header(hdr, 0, core->header_id++);
+
+	payload = HFI_VIDEO_ARCH_LX;
+	iris_hfi_gen2_create_packet(hdr,
+				    HFI_CMD_INIT,
+				    (HFI_HOST_FLAGS_RESPONSE_REQUIRED |
+				    HFI_HOST_FLAGS_INTR_REQUIRED |
+				    HFI_HOST_FLAGS_NON_DISCARDABLE),
+				    HFI_PAYLOAD_U32,
+				    HFI_PORT_NONE,
+				    core->packet_id++,
+				    &payload,
+				    sizeof(u32));
+
+	payload = core->iris_platform_data->ubwc_config->max_channels;
+	iris_hfi_gen2_create_packet(hdr,
+				    HFI_PROP_UBWC_MAX_CHANNELS,
+				    HFI_HOST_FLAGS_NONE,
+				    HFI_PAYLOAD_U32,
+				    HFI_PORT_NONE,
+				    core->packet_id++,
+				    &payload,
+				    sizeof(u32));
+
+	payload = core->iris_platform_data->ubwc_config->mal_length;
+	iris_hfi_gen2_create_packet(hdr,
+				    HFI_PROP_UBWC_MAL_LENGTH,
+				    HFI_HOST_FLAGS_NONE,
+				    HFI_PAYLOAD_U32,
+				    HFI_PORT_NONE,
+				    core->packet_id++,
+				    &payload,
+				    sizeof(u32));
+
+	payload = core->iris_platform_data->ubwc_config->highest_bank_bit;
+	iris_hfi_gen2_create_packet(hdr,
+				    HFI_PROP_UBWC_HBB,
+				    HFI_HOST_FLAGS_NONE,
+				    HFI_PAYLOAD_U32,
+				    HFI_PORT_NONE,
+				    core->packet_id++,
+				    &payload,
+				    sizeof(u32));
+
+	payload = core->iris_platform_data->ubwc_config->bank_swzl_level;
+	iris_hfi_gen2_create_packet(hdr,
+				    HFI_PROP_UBWC_BANK_SWZL_LEVEL1,
+				    HFI_HOST_FLAGS_NONE,
+				    HFI_PAYLOAD_U32,
+				    HFI_PORT_NONE,
+				    core->packet_id++,
+				    &payload,
+				    sizeof(u32));
+
+	payload = core->iris_platform_data->ubwc_config->bank_swz2_level;
+	iris_hfi_gen2_create_packet(hdr,
+				    HFI_PROP_UBWC_BANK_SWZL_LEVEL2,
+				    HFI_HOST_FLAGS_NONE,
+				    HFI_PAYLOAD_U32,
+				    HFI_PORT_NONE,
+				    core->packet_id++,
+				    &payload,
+				    sizeof(u32));
+
+	payload = core->iris_platform_data->ubwc_config->bank_swz3_level;
+	iris_hfi_gen2_create_packet(hdr,
+				    HFI_PROP_UBWC_BANK_SWZL_LEVEL3,
+				    HFI_HOST_FLAGS_NONE,
+				    HFI_PAYLOAD_U32,
+				    HFI_PORT_NONE,
+				    core->packet_id++,
+				    &payload,
+				    sizeof(u32));
+
+	payload = core->iris_platform_data->ubwc_config->bank_spreading;
+	iris_hfi_gen2_create_packet(hdr,
+				    HFI_PROP_UBWC_BANK_SPREADING,
+				    HFI_HOST_FLAGS_NONE,
+				    HFI_PAYLOAD_U32,
+				    HFI_PORT_NONE,
+				    core->packet_id++,
+				    &payload,
+				    sizeof(u32));
+}
+
+void iris_hfi_gen2_packet_image_version(struct iris_core *core, struct iris_hfi_header *hdr)
+{
+	iris_hfi_gen2_create_header(hdr, 0, core->header_id++);
+
+	iris_hfi_gen2_create_packet(hdr,
+				    HFI_PROP_IMAGE_VERSION,
+				    (HFI_HOST_FLAGS_RESPONSE_REQUIRED |
+				    HFI_HOST_FLAGS_INTR_REQUIRED |
+				    HFI_HOST_FLAGS_GET_PROPERTY),
+				    HFI_PAYLOAD_NONE,
+				    HFI_PORT_NONE,
+				    core->packet_id++,
+				    NULL, 0);
+}
+
+void iris_hfi_gen2_packet_sys_interframe_powercollapse(struct iris_core *core,
+						       struct iris_hfi_header *hdr)
+{
+	u32 payload = 1; /* HFI_TRUE */
+
+	iris_hfi_gen2_create_header(hdr, 0 /*session_id*/, core->header_id++);
+
+	iris_hfi_gen2_create_packet(hdr,
+				    HFI_PROP_INTRA_FRAME_POWER_COLLAPSE,
+				    HFI_HOST_FLAGS_NONE,
+				    HFI_PAYLOAD_U32,
+				    HFI_PORT_NONE,
+				    core->packet_id++,
+				    &payload,
+				    sizeof(u32));
+}
diff --git a/drivers/media/platform/qcom/iris/iris_hfi_gen2_packet.h b/drivers/media/platform/qcom/iris/iris_hfi_gen2_packet.h
new file mode 100644
index 000000000000..eba109efeb76
--- /dev/null
+++ b/drivers/media/platform/qcom/iris/iris_hfi_gen2_packet.h
@@ -0,0 +1,69 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights reserved.
+ */
+
+#ifndef _IRIS_HFI_GEN2_PACKET_H_
+#define _IRIS_HFI_GEN2_PACKET_H_
+
+#include "iris_hfi_gen2_defines.h"
+
+struct iris_core;
+
+/**
+ * struct iris_hfi_header
+ *
+ * @size: size of the total packet in bytes including hfi_header
+ * @session_id: For session level hfi_header session_id is non-zero.
+ *                For  system level hfi_header session_id is zero.
+ * @header_id: unique header id for each hfi_header
+ * @reserved: reserved for future use
+ * @num_packets: number of hfi_packet that are included with the hfi_header
+ */
+struct iris_hfi_header {
+	u32 size;
+	u32 session_id;
+	u32 header_id;
+	u32 reserved[4];
+	u32 num_packets;
+};
+
+/**
+ * struct iris_hfi_packet
+ *
+ * @size: size of the hfi_packet in bytes including payload
+ * @type: one of the below hfi_packet types:
+ *        HFI_CMD_*,
+ *        HFI_PROP_*,
+ *        HFI_ERROR_*,
+ *        HFI_INFO_*,
+ *        HFI_SYS_ERROR_*
+ * @flags: hfi_packet flags. It is represented as bit masks.
+ *         host packet flags are "enum hfi_packet_host_flags"
+ *         firmware packet flags are "enum hfi_packet_firmware_flags"
+ * @payload_info: payload information indicated by "enum hfi_packet_payload_info"
+ * @port: hfi_packet port type indicated by "enum hfi_packet_port_type"
+ *        This is bitmask and may be applicable to multiple ports.
+ * @packet_id: host hfi_packet contains unique packet id.
+ *             firmware returns host packet id in response packet
+ *             wherever applicable. If not applicable firmware sets it to zero.
+ * @reserved: reserved for future use.
+ * @payload: flexible array of payload having additional packet information.
+ */
+struct iris_hfi_packet {
+	u32 size;
+	u32 type;
+	u32 flags;
+	u32 payload_info;
+	u32 port;
+	u32 packet_id;
+	u32 reserved[2];
+	u32 payload[];
+};
+
+void iris_hfi_gen2_packet_sys_init(struct iris_core *core, struct iris_hfi_header *hdr);
+void iris_hfi_gen2_packet_image_version(struct iris_core *core, struct iris_hfi_header *hdr);
+void iris_hfi_gen2_packet_sys_interframe_powercollapse(struct iris_core *core,
+						       struct iris_hfi_header *hdr);
+
+#endif
diff --git a/drivers/media/platform/qcom/iris/iris_hfi_gen2_response.c b/drivers/media/platform/qcom/iris/iris_hfi_gen2_response.c
new file mode 100644
index 000000000000..007e4a7b6782
--- /dev/null
+++ b/drivers/media/platform/qcom/iris/iris_hfi_gen2_response.c
@@ -0,0 +1,215 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights reserved.
+ */
+
+#include "iris_hfi_gen2.h"
+#include "iris_hfi_gen2_defines.h"
+#include "iris_hfi_gen2_packet.h"
+#include "iris_vpu_common.h"
+
+struct iris_hfi_gen2_core_hfi_range {
+	u32 begin;
+	u32 end;
+	int (*handle)(struct iris_core *core, struct iris_hfi_packet *pkt);
+};
+
+static int iris_hfi_gen2_validate_packet(u8 *response_pkt, u8 *core_resp_pkt)
+{
+	u8 *response_limit = core_resp_pkt + IFACEQ_CORE_PKT_SIZE;
+	u32 response_pkt_size = *(u32 *)response_pkt;
+
+	if (!response_pkt_size)
+		return -EINVAL;
+
+	if (response_pkt_size < sizeof(struct iris_hfi_packet))
+		return -EINVAL;
+
+	if (response_pkt + response_pkt_size > response_limit)
+		return -EINVAL;
+
+	return 0;
+}
+
+static int iris_hfi_gen2_validate_hdr_packet(struct iris_core *core, struct iris_hfi_header *hdr)
+{
+	struct iris_hfi_packet *packet;
+	int ret;
+	u8 *pkt;
+	u32 i;
+
+	if (hdr->size < sizeof(*hdr) + sizeof(*packet))
+		return -EINVAL;
+
+	pkt = (u8 *)((u8 *)hdr + sizeof(*hdr));
+
+	for (i = 0; i < hdr->num_packets; i++) {
+		packet = (struct iris_hfi_packet *)pkt;
+		ret = iris_hfi_gen2_validate_packet(pkt, core->response_packet);
+		if (ret)
+			return ret;
+
+		pkt += packet->size;
+	}
+
+	return 0;
+}
+
+static int iris_hfi_gen2_handle_system_error(struct iris_core *core,
+					     struct iris_hfi_packet *pkt)
+{
+	dev_err(core->dev, "received system error of type %#x\n", pkt->type);
+
+	core->state = IRIS_CORE_ERROR;
+	schedule_delayed_work(&core->sys_error_handler, msecs_to_jiffies(10));
+
+	return 0;
+}
+
+static int iris_hfi_gen2_handle_system_init(struct iris_core *core,
+					    struct iris_hfi_packet *pkt)
+{
+	if (!(pkt->flags & HFI_FW_FLAGS_SUCCESS)) {
+		core->state = IRIS_CORE_ERROR;
+		return 0;
+	}
+
+	complete(&core->core_init_done);
+
+	return 0;
+}
+
+static int iris_hfi_gen2_handle_image_version_property(struct iris_core *core,
+						       struct iris_hfi_packet *pkt)
+{
+	u8 *str_image_version = (u8 *)pkt + sizeof(*pkt);
+	u32 req_bytes = pkt->size - sizeof(*pkt);
+	char fw_version[IRIS_FW_VERSION_LENGTH];
+	u32 i;
+
+	if (req_bytes < IRIS_FW_VERSION_LENGTH - 1)
+		return -EINVAL;
+
+	for (i = 0; i < IRIS_FW_VERSION_LENGTH - 1; i++) {
+		if (str_image_version[i] != '\0')
+			fw_version[i] = str_image_version[i];
+		else
+			fw_version[i] = ' ';
+	}
+	fw_version[i] = '\0';
+	dev_dbg(core->dev, "firmware version: %s\n", fw_version);
+
+	return 0;
+}
+
+static int iris_hfi_gen2_handle_system_property(struct iris_core *core,
+						struct iris_hfi_packet *pkt)
+{
+	switch (pkt->type) {
+	case HFI_PROP_IMAGE_VERSION:
+		return iris_hfi_gen2_handle_image_version_property(core, pkt);
+	default:
+		return 0;
+	}
+}
+
+static int iris_hfi_gen2_handle_system_response(struct iris_core *core,
+						struct iris_hfi_header *hdr)
+{
+	u8 *start_pkt = (u8 *)((u8 *)hdr + sizeof(*hdr));
+	struct iris_hfi_packet *packet;
+	u32 i, j;
+	u8 *pkt;
+	int ret;
+	static const struct iris_hfi_gen2_core_hfi_range range[] = {
+		{HFI_SYSTEM_ERROR_BEGIN, HFI_SYSTEM_ERROR_END, iris_hfi_gen2_handle_system_error },
+		{HFI_PROP_BEGIN,         HFI_PROP_END, iris_hfi_gen2_handle_system_property },
+		{HFI_CMD_BEGIN,          HFI_CMD_END, iris_hfi_gen2_handle_system_init },
+	};
+
+	for (i = 0; i < ARRAY_SIZE(range); i++) {
+		pkt = start_pkt;
+		for (j = 0; j < hdr->num_packets; j++) {
+			packet = (struct iris_hfi_packet *)pkt;
+			if (packet->flags & HFI_FW_FLAGS_SYSTEM_ERROR) {
+				ret = iris_hfi_gen2_handle_system_error(core, packet);
+				return ret;
+			}
+
+			if (packet->type > range[i].begin && packet->type < range[i].end) {
+				ret = range[i].handle(core, packet);
+				if (ret)
+					return ret;
+
+				if (packet->type >  HFI_SYSTEM_ERROR_BEGIN &&
+				    packet->type < HFI_SYSTEM_ERROR_END)
+					return 0;
+			}
+			pkt += packet->size;
+		}
+	}
+
+	return 0;
+}
+
+static int iris_hfi_gen2_handle_response(struct iris_core *core, void *response)
+{
+	struct iris_hfi_header *hdr = (struct iris_hfi_header *)response;
+	int ret;
+
+	ret = iris_hfi_gen2_validate_hdr_packet(core, hdr);
+	if (ret)
+		return iris_hfi_gen2_handle_system_error(core, NULL);
+
+	return iris_hfi_gen2_handle_system_response(core, hdr);
+}
+
+static void iris_hfi_gen2_flush_debug_queue(struct iris_core *core, u8 *packet)
+{
+	struct hfi_debug_header *pkt;
+	u8 *log;
+
+	while (!iris_hfi_queue_dbg_read(core, packet)) {
+		pkt = (struct hfi_debug_header *)packet;
+
+		if (pkt->size < sizeof(*pkt))
+			continue;
+
+		if (pkt->size >= IFACEQ_CORE_PKT_SIZE)
+			continue;
+
+		packet[pkt->size] = '\0';
+		log = (u8 *)packet + sizeof(*pkt) + 1;
+		dev_dbg(core->dev, "%s", log);
+	}
+}
+
+static void iris_hfi_gen2_response_handler(struct iris_core *core)
+{
+	if (iris_vpu_watchdog(core, core->intr_status)) {
+		struct iris_hfi_packet pkt = {.type = HFI_SYS_ERROR_WD_TIMEOUT};
+
+		dev_err(core->dev, "cpu watchdog error received\n");
+		core->state = IRIS_CORE_ERROR;
+		iris_hfi_gen2_handle_system_error(core, &pkt);
+
+		return;
+	}
+
+	memset(core->response_packet, 0, sizeof(struct iris_hfi_header));
+	while (!iris_hfi_queue_msg_read(core, core->response_packet)) {
+		iris_hfi_gen2_handle_response(core, core->response_packet);
+		memset(core->response_packet, 0, sizeof(struct iris_hfi_header));
+	}
+
+	iris_hfi_gen2_flush_debug_queue(core, core->response_packet);
+}
+
+static const struct iris_hfi_response_ops iris_hfi_gen2_response_ops = {
+	.hfi_response_handler = iris_hfi_gen2_response_handler,
+};
+
+void iris_hfi_gen2_response_ops_init(struct iris_core *core)
+{
+	core->hfi_response_ops = &iris_hfi_gen2_response_ops;
+}
diff --git a/drivers/media/platform/qcom/iris/iris_hfi_queue.c b/drivers/media/platform/qcom/iris/iris_hfi_queue.c
index bb7e0d747f0f..136b1862c53f 100644
--- a/drivers/media/platform/qcom/iris/iris_hfi_queue.c
+++ b/drivers/media/platform/qcom/iris/iris_hfi_queue.c
@@ -5,6 +5,179 @@
 
 #include "iris_core.h"
 #include "iris_hfi_queue.h"
+#include "iris_vpu_common.h"
+
+static int iris_hfi_queue_write(struct iris_iface_q_info *qinfo, void *packet, u32 packet_size)
+{
+	struct iris_hfi_queue_header *queue = qinfo->qhdr;
+	u32 write_idx = queue->write_idx * sizeof(u32);
+	u32 read_idx = queue->read_idx * sizeof(u32);
+	u32 empty_space, new_write_idx, residue;
+	u32 *write_ptr;
+
+	if (write_idx < read_idx)
+		empty_space = read_idx - write_idx;
+	else
+		empty_space = IFACEQ_QUEUE_SIZE - (write_idx -  read_idx);
+	if (empty_space < packet_size)
+		return -ENOSPC;
+
+	queue->tx_req =  0;
+
+	new_write_idx = write_idx + packet_size;
+	write_ptr = (u32 *)((u8 *)qinfo->kernel_vaddr + write_idx);
+
+	if (write_ptr < (u32 *)qinfo->kernel_vaddr ||
+	    write_ptr > (u32 *)(qinfo->kernel_vaddr +
+	    IFACEQ_QUEUE_SIZE))
+		return -EINVAL;
+
+	if (new_write_idx < IFACEQ_QUEUE_SIZE) {
+		memcpy(write_ptr, packet, packet_size);
+	} else {
+		residue = new_write_idx - IFACEQ_QUEUE_SIZE;
+		memcpy(write_ptr, packet, (packet_size - residue));
+		memcpy(qinfo->kernel_vaddr,
+		       packet + (packet_size - residue), residue);
+		new_write_idx = residue;
+	}
+
+	/* Make sure packet is written before updating the write index */
+	mb();
+	queue->write_idx = new_write_idx / sizeof(u32);
+
+	/* Make sure write index is updated before an interrupt is raised */
+	mb();
+
+	return 0;
+}
+
+static int iris_hfi_queue_read(struct iris_iface_q_info *qinfo, void *packet)
+{
+	struct iris_hfi_queue_header *queue = qinfo->qhdr;
+	u32 write_idx = queue->write_idx * sizeof(u32);
+	u32 read_idx = queue->read_idx * sizeof(u32);
+	u32 packet_size, receive_request = 0;
+	u32 new_read_idx, residue;
+	u32 *read_ptr;
+	int ret = 0;
+
+	if (queue->queue_type == IFACEQ_MSGQ_ID)
+		receive_request = 1;
+
+	if (read_idx == write_idx) {
+		queue->rx_req = receive_request;
+		/* Ensure qhdr is updated in main memory */
+		mb();
+		return -ENODATA;
+	}
+
+	read_ptr = qinfo->kernel_vaddr + read_idx;
+	if (read_ptr < (u32 *)qinfo->kernel_vaddr ||
+	    read_ptr > (u32 *)(qinfo->kernel_vaddr +
+	    IFACEQ_QUEUE_SIZE - sizeof(*read_ptr)))
+		return -ENODATA;
+
+	packet_size = *read_ptr;
+	if (!packet_size)
+		return -EINVAL;
+
+	new_read_idx = read_idx + packet_size;
+	if (packet_size <= IFACEQ_CORE_PKT_SIZE) {
+		if (new_read_idx < IFACEQ_QUEUE_SIZE) {
+			memcpy(packet, read_ptr, packet_size);
+		} else {
+			residue = new_read_idx - IFACEQ_QUEUE_SIZE;
+			memcpy(packet, read_ptr, (packet_size - residue));
+			memcpy((packet + (packet_size - residue)),
+			       qinfo->kernel_vaddr, residue);
+			new_read_idx = residue;
+		}
+	} else {
+		new_read_idx = write_idx;
+		ret = -EBADMSG;
+	}
+
+	queue->rx_req = receive_request;
+
+	queue->read_idx = new_read_idx / sizeof(u32);
+	/* Ensure qhdr is updated in main memory */
+	mb();
+
+	return ret;
+}
+
+int iris_hfi_queue_cmd_write_locked(struct iris_core *core, void *pkt, u32 pkt_size)
+{
+	struct iris_iface_q_info *q_info = &core->command_queue;
+
+	if (core->state == IRIS_CORE_ERROR)
+		return -EINVAL;
+
+	if (!iris_hfi_queue_write(q_info, pkt, pkt_size)) {
+		iris_vpu_raise_interrupt(core);
+	} else {
+		dev_err(core->dev, "queue full\n");
+		return -ENODATA;
+	}
+
+	return 0;
+}
+
+int iris_hfi_queue_cmd_write(struct iris_core *core, void *pkt, u32 pkt_size)
+{
+	int ret;
+
+	mutex_lock(&core->lock);
+	ret = iris_hfi_queue_cmd_write_locked(core, pkt, pkt_size);
+	mutex_unlock(&core->lock);
+
+	return ret;
+}
+
+int iris_hfi_queue_msg_read(struct iris_core *core, void *pkt)
+{
+	struct iris_iface_q_info *q_info = &core->message_queue;
+	int ret = 0;
+
+	mutex_lock(&core->lock);
+	if (core->state != IRIS_CORE_INIT) {
+		ret = -EINVAL;
+		goto unlock;
+	}
+
+	if (iris_hfi_queue_read(q_info, pkt)) {
+		ret = -ENODATA;
+		goto unlock;
+	}
+
+unlock:
+	mutex_unlock(&core->lock);
+
+	return ret;
+}
+
+int iris_hfi_queue_dbg_read(struct iris_core *core, void *pkt)
+{
+	struct iris_iface_q_info *q_info = &core->debug_queue;
+	int ret = 0;
+
+	mutex_lock(&core->lock);
+	if (core->state != IRIS_CORE_INIT) {
+		ret = -EINVAL;
+		goto unlock;
+	}
+
+	if (iris_hfi_queue_read(q_info, pkt)) {
+		ret = -ENODATA;
+		goto unlock;
+	}
+
+unlock:
+	mutex_unlock(&core->lock);
+
+	return ret;
+}
 
 static void iris_hfi_queue_set_header(struct iris_core *core, u32 queue_id,
 				      struct iris_iface_q_info *iface_q)
diff --git a/drivers/media/platform/qcom/iris/iris_hfi_queue.h b/drivers/media/platform/qcom/iris/iris_hfi_queue.h
index 54994bb776f1..1b728ebddd1d 100644
--- a/drivers/media/platform/qcom/iris/iris_hfi_queue.h
+++ b/drivers/media/platform/qcom/iris/iris_hfi_queue.h
@@ -172,4 +172,9 @@ struct iris_iface_q_info {
 int iris_hfi_queues_init(struct iris_core *core);
 void iris_hfi_queues_deinit(struct iris_core *core);
 
+int iris_hfi_queue_cmd_write_locked(struct iris_core *core, void *pkt, u32 pkt_size);
+int iris_hfi_queue_cmd_write(struct iris_core *core, void *pkt, u32 pkt_size);
+int iris_hfi_queue_msg_read(struct iris_core *core, void *pkt);
+int iris_hfi_queue_dbg_read(struct iris_core *core, void *pkt);
+
 #endif
diff --git a/drivers/media/platform/qcom/iris/iris_platform_common.h b/drivers/media/platform/qcom/iris/iris_platform_common.h
index 33ae340052b8..e188f6407934 100644
--- a/drivers/media/platform/qcom/iris/iris_platform_common.h
+++ b/drivers/media/platform/qcom/iris/iris_platform_common.h
@@ -6,7 +6,10 @@
 #ifndef _IRIS_PLATFORM_COMMON_H_
 #define _IRIS_PLATFORM_COMMON_H_
 
+struct iris_core;
+
 #define IRIS_PAS_ID				9
+#define HW_RESPONSE_TIMEOUT_VALUE               (1000) /* milliseconds */
 
 extern struct iris_platform_data sm8550_data;
 
@@ -28,7 +31,19 @@ struct tz_cp_config {
 	u32 cp_nonpixel_size;
 };
 
+struct ubwc_config_data {
+	u32	max_channels;
+	u32	mal_length;
+	u32	highest_bank_bit;
+	u32	bank_swzl_level;
+	u32	bank_swz2_level;
+	u32	bank_swz3_level;
+	u32	bank_spreading;
+};
+
 struct iris_platform_data {
+	void (*init_hfi_command_ops)(struct iris_core *core);
+	void (*init_hfi_response_ops)(struct iris_core *core);
 	struct iris_inst *(*get_instance)(void);
 	const struct icc_info *icc_tbl;
 	unsigned int icc_tbl_size;
@@ -45,6 +60,8 @@ struct iris_platform_data {
 	u32 pas_id;
 	struct tz_cp_config *tz_cp_config_data;
 	u32 core_arch;
+	u32 hw_response_timeout;
+	struct ubwc_config_data *ubwc_config;
 };
 
 #endif
diff --git a/drivers/media/platform/qcom/iris/iris_platform_sm8550.c b/drivers/media/platform/qcom/iris/iris_platform_sm8550.c
index 4f40bfeeecf1..b749d355e8ad 100644
--- a/drivers/media/platform/qcom/iris/iris_platform_sm8550.c
+++ b/drivers/media/platform/qcom/iris/iris_platform_sm8550.c
@@ -26,6 +26,16 @@ static const struct platform_clk_data sm8550_clk_table[] = {
 	{IRIS_HW_CLK,   "vcodec0_core" },
 };
 
+static struct ubwc_config_data ubwc_config_sm8550 = {
+	.max_channels = 8,
+	.mal_length = 32,
+	.highest_bank_bit = 16,
+	.bank_swzl_level = 0,
+	.bank_swz2_level = 1,
+	.bank_swz3_level = 1,
+	.bank_spreading = 1,
+};
+
 static struct tz_cp_config tz_cp_config_sm8550 = {
 	.cp_start = 0,
 	.cp_size = 0x25800000,
@@ -35,6 +45,8 @@ static struct tz_cp_config tz_cp_config_sm8550 = {
 
 struct iris_platform_data sm8550_data = {
 	.get_instance = iris_hfi_gen2_get_instance,
+	.init_hfi_command_ops = iris_hfi_gen2_command_ops_init,
+	.init_hfi_response_ops = iris_hfi_gen2_response_ops_init,
 	.icc_tbl = sm8550_icc_table,
 	.icc_tbl_size = ARRAY_SIZE(sm8550_icc_table),
 	.clk_rst_tbl = sm8550_clk_reset_table,
@@ -50,4 +62,6 @@ struct iris_platform_data sm8550_data = {
 	.pas_id = IRIS_PAS_ID,
 	.tz_cp_config_data = &tz_cp_config_sm8550,
 	.core_arch = VIDEO_ARCH_LX,
+	.hw_response_timeout = HW_RESPONSE_TIMEOUT_VALUE,
+	.ubwc_config = &ubwc_config_sm8550,
 };
diff --git a/drivers/media/platform/qcom/iris/iris_probe.c b/drivers/media/platform/qcom/iris/iris_probe.c
index 81400034f3da..027009d84c2b 100644
--- a/drivers/media/platform/qcom/iris/iris_probe.c
+++ b/drivers/media/platform/qcom/iris/iris_probe.c
@@ -178,6 +178,15 @@ static void iris_remove(struct platform_device *pdev)
 	core->state = IRIS_CORE_DEINIT;
 }
 
+static void iris_sys_error_handler(struct work_struct *work)
+{
+	struct iris_core *core =
+			container_of(work, struct iris_core, sys_error_handler.work);
+
+	iris_core_deinit(core);
+	iris_core_init(core);
+}
+
 static int iris_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
@@ -192,6 +201,13 @@ static int iris_probe(struct platform_device *pdev)
 
 	core->state = IRIS_CORE_DEINIT;
 	mutex_init(&core->lock);
+	init_completion(&core->core_init_done);
+
+	core->response_packet = devm_kzalloc(core->dev, IFACEQ_CORE_PKT_SIZE, GFP_KERNEL);
+	if (!core->response_packet)
+		return -ENOMEM;
+
+	INIT_DELAYED_WORK(&core->sys_error_handler, iris_sys_error_handler);
 
 	core->reg_base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(core->reg_base))
@@ -203,7 +219,17 @@ static int iris_probe(struct platform_device *pdev)
 
 	core->iris_platform_data = of_device_get_match_data(core->dev);
 
+	ret = devm_request_threaded_irq(core->dev, core->irq, iris_hfi_isr,
+					iris_hfi_isr_handler, IRQF_TRIGGER_HIGH, "iris", core);
+	if (ret)
+		return ret;
+
+	disable_irq_nosync(core->irq);
+
 	iris_init_ops(core);
+	core->iris_platform_data->init_hfi_command_ops(core);
+	core->iris_platform_data->init_hfi_response_ops(core);
+
 	ret = iris_init_resources(core);
 	if (ret)
 		return ret;
diff --git a/drivers/media/platform/qcom/iris/iris_vpu_common.c b/drivers/media/platform/qcom/iris/iris_vpu_common.c
index 959ed46e8f47..f271068cd838 100644
--- a/drivers/media/platform/qcom/iris/iris_vpu_common.c
+++ b/drivers/media/platform/qcom/iris/iris_vpu_common.c
@@ -11,10 +11,15 @@
 #define CPU_BASE_OFFS				0x000A0000
 
 #define CPU_CS_BASE_OFFS			(CPU_BASE_OFFS)
+#define CPU_IC_BASE_OFFS			(CPU_BASE_OFFS)
+
+#define CPU_CS_A2HSOFTINTCLR			(CPU_CS_BASE_OFFS + 0x1C)
+#define CLEAR_XTENSA2HOST_INTR			BIT(0)
 
 #define CTRL_INIT				(CPU_CS_BASE_OFFS + 0x48)
 #define CTRL_STATUS				(CPU_CS_BASE_OFFS + 0x4C)
 
+#define CTRL_INIT_IDLE_MSG_BMSK			0x40000000
 #define CTRL_ERROR_STATUS__M			0xfe
 
 #define QTBL_INFO				(CPU_CS_BASE_OFFS + 0x50)
@@ -31,6 +36,15 @@
 
 #define CPU_CS_X2RPMH				(CPU_CS_BASE_OFFS + 0x168)
 
+#define CPU_IC_SOFTINT				(CPU_IC_BASE_OFFS + 0x150)
+#define CPU_IC_SOFTINT_H2A_SHFT			0x0
+
+#define WRAPPER_BASE_OFFS			0x000B0000
+#define WRAPPER_INTR_STATUS			(WRAPPER_BASE_OFFS + 0x0C)
+#define WRAPPER_INTR_STATUS_A2HWD_BMSK		BIT(3)
+#define WRAPPER_INTR_STATUS_A2H_BMSK		BIT(2)
+
+
 static void iris_vpu_setup_ucregion_memory_map(struct iris_core *core)
 {
 	u32 queue_size, value;
@@ -87,3 +101,33 @@ int iris_vpu_boot_firmware(struct iris_core *core)
 
 	return 0;
 }
+
+void iris_vpu_raise_interrupt(struct iris_core *core)
+{
+	writel(1 << CPU_IC_SOFTINT_H2A_SHFT, core->reg_base + CPU_IC_SOFTINT);
+}
+
+void iris_vpu_clear_interrupt(struct iris_core *core)
+{
+	u32 intr_status, mask;
+
+	intr_status = readl(core->reg_base + WRAPPER_INTR_STATUS);
+	mask = (WRAPPER_INTR_STATUS_A2H_BMSK |
+		WRAPPER_INTR_STATUS_A2HWD_BMSK |
+		CTRL_INIT_IDLE_MSG_BMSK);
+
+	if (intr_status & mask)
+		core->intr_status |= intr_status;
+
+	writel(CLEAR_XTENSA2HOST_INTR, core->reg_base + CPU_CS_A2HSOFTINTCLR);
+}
+
+int iris_vpu_watchdog(struct iris_core *core, u32 intr_status)
+{
+	if (intr_status & WRAPPER_INTR_STATUS_A2HWD_BMSK) {
+		dev_err(core->dev, "received watchdog interrupt\n");
+		return -ETIME;
+	}
+
+	return 0;
+}
diff --git a/drivers/media/platform/qcom/iris/iris_vpu_common.h b/drivers/media/platform/qcom/iris/iris_vpu_common.h
index d9b8df6e3f80..706b207bc295 100644
--- a/drivers/media/platform/qcom/iris/iris_vpu_common.h
+++ b/drivers/media/platform/qcom/iris/iris_vpu_common.h
@@ -9,5 +9,8 @@
 struct iris_core;
 
 int iris_vpu_boot_firmware(struct iris_core *core);
+void iris_vpu_raise_interrupt(struct iris_core *core);
+void iris_vpu_clear_interrupt(struct iris_core *core);
+int iris_vpu_watchdog(struct iris_core *core, u32 intr_status);
 
 #endif
