gpu/ocl: Allow building out the ngen kernel support

cmake/configuring_primitive_list.cmake

@@ -55,6 +55,8 @@ message(STATUS "Enabled primitive CPU ISA: ${DNNL_ENABLE_PRIMITIVE_CPU_ISA}")
 
 if (DNNL_ENABLE_PRIMITIVE_GPU_ISA STREQUAL "ALL")
     set(BUILD_PRIMITIVE_GPU_ISA_ALL TRUE)
+elseif(DNNL_ENABLE_PRIMITIVE_GPU_ISA STREQUAL "NONE")
+    set(BUILD_PRIMITIVE_GPU_ISA_NONE TRUE)
 else()
     foreach(isa ${DNNL_ENABLE_PRIMITIVE_GPU_ISA})
         string(TOUPPER ${isa} uisa)

cmake/options.cmake

@@ -146,6 +146,7 @@ set(DNNL_ENABLE_PRIMITIVE_GPU_ISA "ALL" CACHE STRING
     at build time. Regardless of value chosen, reference OpenCL-based
     implementations will always be available. Valid values:
     - ALL (the default). Includes all ISA to be enabled.
+    - NONE: Disables the ISA-specific implementations.
     - <ISA_NAME>;<ISA_NAME>;... Includes only selected ISA to be enabled.
       Possible values are: GEN9, GEN11, XELP, XEHP, XEHPG, XEHPC, XE2.")
 

doc/build/build_options.md

@@ -24,7 +24,7 @@ oneDNN supports the following build-time options.
 | ONEDNN_ENABLE_WORKLOAD          | **TRAINING**, INFERENCE                             | Specifies a set of functionality to be available based on workload                              |
 | ONEDNN_ENABLE_PRIMITIVE         | **ALL**, PRIMITIVE_NAME                             | Specifies a set of functionality to be available based on primitives                            |
 | ONEDNN_ENABLE_PRIMITIVE_CPU_ISA | **ALL**, CPU_ISA_NAME                               | Specifies a set of functionality to be available for CPU backend based on CPU ISA               |
-| ONEDNN_ENABLE_PRIMITIVE_GPU_ISA | **ALL**, GPU_ISA_NAME                               | Specifies a set of functionality to be available for GPU backend based on GPU ISA               |
+| ONEDNN_ENABLE_PRIMITIVE_GPU_ISA | **ALL**, NONE, GPU_ISA_NAME                         | Specifies a set of functionality to be available for GPU backend based on GPU ISA               |
 | ONEDNN_ENABLE_GEMM_KERNELS_ISA  | **ALL**, NONE, ISA_NAME                             | Specifies a set of functionality to be available for GeMM kernels for CPU backend based on ISA  |
 | ONEDNN_EXPERIMENTAL             | ON, **OFF**                                         | Enables [experimental features](@ref dev_guide_experimental)                                    |
 | ONEDNN_VERBOSE                  | **ON**, OFF                                         | Enables [verbose mode](@ref dev_guide_verbose)                                                  |

include/oneapi/dnnl/dnnl_config.h.in

@@ -209,6 +209,7 @@
 #cmakedefine01 BUILD_AMX
 // Primitives GPU ISA controls
 #cmakedefine01 BUILD_PRIMITIVE_GPU_ISA_ALL
+#cmakedefine01 BUILD_PRIMITIVE_GPU_ISA_NONE
 #cmakedefine01 BUILD_GEN9
 #cmakedefine01 BUILD_GEN11
 #cmakedefine01 BUILD_XELP

src/gpu/intel/ocl/ocl_gpu_hw_info.cpp

@@ -55,9 +55,10 @@ void init_gpu_hw_info(impl::engine_t *engine, cl_device_id device,
     assert(ret == CL_SUCCESS);
     MAYBE_UNUSED(ret);
 
-    auto status
-            = jit::gpu_supports_binary_format(&mayiuse_ngen_kernels, engine);
-    if (status != status::success) mayiuse_ngen_kernels = false;
+    mayiuse_ngen_kernels = false;
+#if !BUILD_PRIMITIVE_GPU_ISA_NONE
+    jit::gpu_supports_binary_format(&mayiuse_ngen_kernels, engine);
+#endif
 
     ip_version = 0;
     if (clGetDeviceInfo(device, CL_DEVICE_IP_VERSION_INTEL, sizeof(ip_version),