[UR] Stop querying adapter fp16/fp64 support via extension.

Author: aarongreig

sycl/cmake/modules/FetchUnifiedRuntime.cmake

@@ -116,14 +116,14 @@ if(SYCL_UR_USE_FETCH_CONTENT)
       CACHE PATH "Path to external '${name}' adapter source dir" FORCE)
   endfunction()
 
-  set(UNIFIED_RUNTIME_REPO "https://github.com/oneapi-src/unified-runtime.git")
+  set(UNIFIED_RUNTIME_REPO "https://github.com/aarongreig/unified-runtime.git")
   # commit c742ca49efb12380a35b8b0b467e6577ab8174ce
   # Merge: 3a8bf2c5 504d3b63
   # Author: Kenneth Benzie (Benie) <[email protected]>
   # Date:   Mon Oct 21 11:55:23 2024 +0100
   #     Merge pull request #2131 from Bensuo/ben/command-handle-fix
   #     [EXP][CMDBUF] Make command handle behaviour consistent
-  set(UNIFIED_RUNTIME_TAG c742ca49efb12380a35b8b0b467e6577ab8174ce)
+  set(UNIFIED_RUNTIME_TAG aaron/stopReportingFPExtensions)
 
   set(UMF_BUILD_EXAMPLES OFF CACHE INTERNAL "EXAMPLES")
   # Due to the use of dependentloadflag and no installer for UMF and hwloc we need

sycl/source/detail/device_impl.cpp

@@ -367,9 +367,9 @@ bool device_impl::has(aspect Aspect) const {
   case aspect::host_debuggable:
     return false;
   case aspect::fp16:
-    return has_extension("cl_khr_fp16");
+    return isFp16Supported();
   case aspect::fp64:
-    return has_extension("cl_khr_fp64");
+    return isFp64Supported();
   case aspect::int64_base_atomics:
     return has_extension("cl_khr_int64_base_atomics");
   case aspect::int64_extended_atomics:
@@ -800,6 +800,20 @@ ext::oneapi::experimental::architecture device_impl::getDeviceArch() const {
   return MDeviceArch;
 }
 
+bool device_impl::isFp16Supported() const {
+  auto Fp16Config = get_info<info::device::half_fp_config>();
+  // If we don't get anything back from this we can assume the device doesn't
+  // support fp16.
+  return Fp16Config.empty() ? false : true;
+}
+
+bool device_impl::isFp64Supported() const {
+  auto Fp64Config = get_info<info::device::double_fp_config>();
+  // If we don't get anything back from this we can assume the device doesn't
+  // support fp64.
+  return Fp64Config.empty() ? false : true;
+}
+
 // On the first call this function queries for device timestamp
 // along with host synchronized timestamp and stores it in member variable
 // MDeviceHostBaseTime. Subsequent calls to this function would just retrieve

sycl/source/detail/device_impl.hpp

@@ -293,6 +293,12 @@ class device_impl {
   /// Get device architecture
   ext::oneapi::experimental::architecture getDeviceArch() const;
 
+  // Check if the device supports double precision floating point.
+  bool isFp64Supported() const;
+
+  // Check if the device supports half precision floating point.
+  bool isFp16Supported() const;
+
 private:
   explicit device_impl(ur_native_handle_t InteropDevice,
                        ur_device_handle_t Device, PlatformImplPtr Platform,