Use global address space as default

If not arg info provided use global
address space

Change-Id: Ib134f2fce32a0f334339a7f9a21d48178c17a421

Author: jchodor

runtime/program/kernel_arg_info.h

@@ -168,7 +168,7 @@ inline std::string parseLimitedString(const char *str, size_t maxSize) {
 struct ArgTypeMetadata {
     uint32_t argByValSize = 0U;
     KernelArgMetadata::AccessQualifier accessQualifier = {};
-    KernelArgMetadata::AddressSpaceQualifier addressQualifier = {};
+    KernelArgMetadata::AddressSpaceQualifier addressQualifier = KernelArgMetadata::AddressSpaceQualifier::Global;
     KernelArgMetadata::TypeQualifiers typeQualifiers = {};
 };
 static_assert(sizeof(ArgTypeMetadata) <= 8, "");

unit_tests/kernel/kernel_tests.cpp

@@ -3138,3 +3138,8 @@ TEST(KernelCreateTest, whenInitFailedThenReturnNull) {
     auto ret = Kernel::create<MockKernel>(&mockProgram, info, nullptr);
     EXPECT_EQ(nullptr, ret);
 }
+
+TEST(ArgTypeMetadata, GivenDefaultInitializedArgTypeMetadataThenAddressSpaceIsGlobal) {
+    ArgTypeMetadata metadata;
+    EXPECT_EQ(NEO::KernelArgMetadata::AddressSpaceQualifier::Global, metadata.addressQualifier);
+}