Fix review comments

Author: kurapov-peter

include/ur_api.h

@@ -5999,6 +5999,10 @@ typedef enum ur_kernel_info_t {
   UR_KERNEL_INFO_NUM_REGS = 6,
   /// [uint32_t[]][optional-query] Return the spill memory size allocated by
   /// the compiler.
+  /// The returned values correspond to the associated devices.
+  /// The order of the devices is guaranteed (i.e., the same as queried by
+  /// `urDeviceGet`) by the UR within a single application even if the runtime
+  /// is reinitialized.
   UR_KERNEL_INFO_SPILL_MEM_SIZE = 7,
   /// @cond
   UR_KERNEL_INFO_FORCE_UINT32 = 0x7fffffff

source/adapters/level_zero/kernel.cpp

@@ -751,10 +751,12 @@ ur_result_t urKernelGetInfo(
   case UR_KERNEL_INFO_NUM_REGS:
   case UR_KERNEL_INFO_NUM_ARGS:
     return ReturnValue(uint32_t{Kernel->ZeKernelProperties->numKernelArgs});
-  case UR_KERNEL_INFO_SPILL_MEM_SIZE:
-    return ReturnValue(static_cast<const uint32_t *>(
-                           &(Kernel->ZeKernelProperties->spillMemSize)),
-                       1ul);
+  case UR_KERNEL_INFO_SPILL_MEM_SIZE: {
+    std::vector<uint32_t> spills = {
+        uint32_t{Kernel->ZeKernelProperties->spillMemSize}};
+    return ReturnValue(static_cast<const uint32_t *>(spills.data()),
+                       spills.size());
+  }
   case UR_KERNEL_INFO_REFERENCE_COUNT:
     return ReturnValue(uint32_t{Kernel->RefCount.load()});
   case UR_KERNEL_INFO_ATTRIBUTES:

test/conformance/kernel/urKernelGetInfo.cpp

@@ -147,7 +147,7 @@ TEST_P(urKernelGetInfoTest, SuccessSpillMemSize) {
       property_name);
   ASSERT_EQ(property_size, sizeof(uint32_t));
 
-  std::vector<char> property_value(property_size);
+  std::vector<uint32_t> property_value(property_size / sizeof(uint32_t));
   ASSERT_SUCCESS(urKernelGetInfo(kernel, property_name, property_size,
                                  property_value.data(), nullptr));
 }