[GPU] Add Level Zero - OpenCL interoperability

[jkasprza]

Details:

• Detect if current system supports interoperability.
  • If check is passed, then create OCL remote context over L0 GPU runtime.
  • If check fails, then create L0 remote context over L0 GPU runtime.
• Remote context and remote tensors query internal GPU plugin objects fur runtime specific handles.
  • OCL remote context will query for OCL handles.
  • L0 remote context will query for L0 handles.
• Enable L0 internal GPU plugin objects to return converted OCL handles.
• Add resource_owner template for gpu resource management.
• Add ze_resource template that will hold Level Zero objects and optionally corresponding OpenCL objects.
• Add operators for conversion between Level Zero objects and OpenCL objects.

Benchmarks:

Peak memory usage measured on benchmark_app running resnet-50 on BMG Linux

	VmPeak (kB)	MaxRSS (kB)
This PR (runtime=L0, interop=ON)	3,262,536	190,924
This PR (runtime=L0, interop=OFF)	3,263,688	193,200
Master (runtime=L0)	3,293,048	192,188
[REF] Master (runtime=OCL)	3,281,412	193,196

Tickets:

• CVS-185378

AI Assistance:

• AI assistance used: yes
• AI help was used to create tests

[Copilot]

Pull request overview

This PR adds Level Zero–OpenCL interoperability support to the Intel GPU plugin, enabling OpenCL-style RemoteContext/RemoteTensor usage while running the plugin on the Level Zero runtime. It introduces shared/RAII resource wrappers for Level Zero + optional OpenCL handles, implements import/export conversions, and updates runtime interfaces (engine/memory/stream) plus tests and documentation accordingly.

Changes:

• Introduce resource_owner/ze_resource abstractions and refactor ZE runtime objects to use shared resource holders (command lists, events/pools, kernels/modules, images/USM).
• Add ZE↔OCL handle conversion utilities (ze_ocl_interop, ze_resource_interop) and integrate them into context/stream/memory export/import paths.
• Update engine and memory interfaces to return runtime-specific internal handles, and adjust remote context/tensor logic + test coverage.

Reviewed changes

Copilot reviewed 55 out of 55 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
src/plugins/intel_gpu/tests/unit/test_utils/test_utils.cpp	Update test engine creation to use new default engine/runtime helpers.
src/plugins/intel_gpu/tests/unit/module_tests/ze/ze_resource_test.cpp	Add unit tests for ze_resource behavior (empty/ownership/OCL attachments).
src/plugins/intel_gpu/tests/unit/module_tests/ze/ze_device_test.cpp	Update ZE device tests to use resource wrappers (handle()/is_empty()).
src/plugins/intel_gpu/tests/functional/remote_tensor_tests/ocl_remote_tensor_tests.cpp	Remove local OCL runtime guard to run remote tensor tests under the functional test target (which links OpenCL).
src/plugins/intel_gpu/src/runtime/ze/ze_stream.hpp	Store command list as ze_command_list_resource; add ctor for external command list.
src/plugins/intel_gpu/src/runtime/ze/ze_stream.cpp	Support stream creation from imported OCL queue; queue-type detection via OCL queue properties; use resource wrappers.
src/plugins/intel_gpu/src/runtime/ze/ze_resource.hpp	Add ze_resource<T> shared wrapper for ZE handles with optional attached OCL handles.
src/plugins/intel_gpu/src/runtime/ze/ze_resource_interop.hpp	Declare import/export helpers for converting between ZE resources and OCL handles.
src/plugins/intel_gpu/src/runtime/ze/ze_resource_interop.cpp	Implement resource-level import/export conversions using ze_ocl_interop.
src/plugins/intel_gpu/src/runtime/ze/ze_owner.hpp	Add resource_owner template + ZE resource type definitions/deleters.
src/plugins/intel_gpu/src/runtime/ze/ze_ocl_owner.hpp	Add combined ZE+optional OCL owner model (ze_ocl_owner_impl) and OCL resource type definitions.
src/plugins/intel_gpu/src/runtime/ze/ze_ocl_interop.hpp	Add singleton providing direct ZE↔OCL handle conversion APIs + support checks.
src/plugins/intel_gpu/src/runtime/ze/ze_ocl_interop.cpp	Implement ZE↔OCL conversions and device mapping initialization.
src/plugins/intel_gpu/src/runtime/ze/ze_ocl_common.hpp	Add OV_OCL_WARN helper macro for OpenCL error logging in ZE interop code.
src/plugins/intel_gpu/src/runtime/ze/ze_module_holder.hpp	Remove legacy ZE module RAII holder (replaced by resource wrappers).
src/plugins/intel_gpu/src/runtime/ze/ze_memory.hpp	Refactor ZE memory objects to use ze_usm_resource / ze_image_resource and runtime-aware internal params.
src/plugins/intel_gpu/src/runtime/ze/ze_memory.cpp	Implement interop-aware internal param export; add allocation-range validation; refactor USM/image code to resource wrappers.
src/plugins/intel_gpu/src/runtime/ze/ze_kernel.hpp	Refactor kernel/module lifetime management to use ze_*_resource holders and optional build logs.
src/plugins/intel_gpu/src/runtime/ze/ze_kernel_holder.hpp	Remove legacy ZE kernel RAII holder (replaced by resource wrappers).
src/plugins/intel_gpu/src/runtime/ze/ze_kernel_builder.hpp	Refactor builder API to build kernels directly (no module-holder return).
src/plugins/intel_gpu/src/runtime/ze/ze_kernel_builder.cpp	Update kernel build flow; cache build support per device; use resource wrappers.
src/plugins/intel_gpu/src/runtime/ze/ze_event.hpp	Refactor event to hold ze_event_resource and keep pool alive via ze_event_pool_resource.
src/plugins/intel_gpu/src/runtime/ze/ze_event.cpp	Update ZE event operations to use resource wrappers; remove manual destructor destroy.
src/plugins/intel_gpu/src/runtime/ze/ze_event_pool.hpp	Remove legacy event pool RAII type (replaced by ze_event_pool_resource).
src/plugins/intel_gpu/src/runtime/ze/ze_event_pool.cpp	Remove legacy event pool implementation (now created in factory).
src/plugins/intel_gpu/src/runtime/ze/ze_event_factory.hpp	Store current pool as ze_event_pool_resource; fix <mutex> include style.
src/plugins/intel_gpu/src/runtime/ze/ze_event_factory.cpp	Create/destroy event pools via resource wrapper; create events as ze_event_resource.
src/plugins/intel_gpu/src/runtime/ze/ze_engine.hpp	Make user context retrieval runtime-specific; return ZE context/device/driver as resources.
src/plugins/intel_gpu/src/runtime/ze/ze_engine.cpp	Add OCL-handle export for contexts; support creating ZE stream from OCL queue; refactor memory reinterpret/import paths.
src/plugins/intel_gpu/src/runtime/ze/ze_device.hpp	Refactor ZE device to store driver/device/context resources; default destructor.
src/plugins/intel_gpu/src/runtime/ze/ze_device.cpp	Add supports_leo detection; add cl_mem capability when supported; refactor init/lifetime.
src/plugins/intel_gpu/src/runtime/ze/ze_device_detector.hpp	Add helper to create ZE device from OCL device.
src/plugins/intel_gpu/src/runtime/ze/ze_device_detector.cpp	Convert OCL devices to ZE devices when querying under ZE runtime; use resource wrappers for subdevices.
src/plugins/intel_gpu/src/runtime/ze/ze_counter_based_event.hpp	Refactor counter-based events to use ze_event_resource.
src/plugins/intel_gpu/src/runtime/ze/ze_counter_based_event.cpp	Update counter-based event API calls to use resource wrapper handles; remove manual destructor destroy.
src/plugins/intel_gpu/src/runtime/ze/ze_counter_based_event_factory.cpp	Update factory to use resource wrapper handles and pass driver handle for init.
src/plugins/intel_gpu/src/runtime/ze/ze_common.hpp	Adjust ZeroApi wrapper behavior for missing symbols; keep symbols-list macro control local.
src/plugins/intel_gpu/src/runtime/ocl/ocl_memory.hpp	Make internal params query runtime-specific (assert OCL runtime).
src/plugins/intel_gpu/src/runtime/ocl/ocl_memory.cpp	Enforce OCL-only internal param queries in OCL memory implementations.
src/plugins/intel_gpu/src/runtime/ocl/ocl_engine.hpp	Make user context retrieval runtime-specific (assert OCL runtime).
src/plugins/intel_gpu/src/runtime/ocl/ocl_engine.cpp	Update context retrieval calls to pass explicit runtime type.
src/plugins/intel_gpu/src/runtime/ocl/ocl_device.cpp	Initialize supports_leo=false for pure OCL devices.
src/plugins/intel_gpu/src/runtime/engine_configuration.cpp	Add global helpers for default engine/runtime selection.
src/plugins/intel_gpu/src/runtime/device_query.cpp	Use OCL query path for OCL user contexts and convert devices to ZE when running ZE runtime.
src/plugins/intel_gpu/src/plugin/remote_tensor.cpp	Query runtime-specific internal handles based on the remote context type.
src/plugins/intel_gpu/src/plugin/remote_context.cpp	Default context type selection; auto-enable OCL remote context when LEO is supported; make properties runtime-specific.
src/plugins/intel_gpu/include/intel_gpu/runtime/memory.hpp	Change internal-handle query API to be runtime-specific, with a default helper.
src/plugins/intel_gpu/include/intel_gpu/runtime/memory_caps.hpp	Clarify that shared context handle can be OCL or ZE.
src/plugins/intel_gpu/include/intel_gpu/runtime/engine.hpp	Change engine user context API to be runtime-specific.
src/plugins/intel_gpu/include/intel_gpu/runtime/engine_configuration.hpp	Declare global get_default_engine_type() / get_default_runtime_type().
src/plugins/intel_gpu/include/intel_gpu/runtime/device_query.hpp	Remove default engine/runtime selection from device_query (now global helpers).
src/plugins/intel_gpu/include/intel_gpu/runtime/device_info.hpp	Add supports_leo device capability flag.
src/plugins/intel_gpu/include/intel_gpu/plugin/remote_context.hpp	Remove preprocessor-initialized context type; store computed context type.
src/plugins/intel_gpu/docs/blog/ze_ocl_interop_2026_3.md	Add design/usage documentation for Level Zero–OpenCL interop and new resource model.
src/inference/include/openvino/runtime/intel_gpu/remote_properties.hpp	Minor wording/order tweak for ContextType::ZE parsing/comment.

[isanghao]

lgtm