SWDEV-385161 - Deprecate usage of env vars in HIP samples and tests (#363)

* SWDEV-385161 - Deprecate usage of env vars in HIP samples and tests env vars such as HIP_PATH, ROCM_PATH, HIP_COMPILER, HIP_RUNTIME, HSA_PATH etc are removed.

Change-Id: I280e20b291cfb14675846aae72d97fa5b3ad567d

catch/unit/memory/hipMallocArray.cc

@@ -399,12 +399,22 @@ TEMPLATE_TEST_CASE("Unit_hipMallocArray_happy", "", uint, int, int4, ushort, sho
     testArrayAsSurface<TestType>(arrayPtr, width, height);
   }
   SECTION("hipArrayTextureGather") {
-    height = 1024;
-    INFO("flag is hipArrayTextureGather");
-    INFO("height: " << height);
+    hipDeviceProp_t prop;
+    int device;
+    HIP_CHECK(hipGetDevice(&device));
+    HIP_CHECK(hipGetDeviceProperties(&prop, device));
+    // tex2Dgather not supported on gfx90a
+    if (std::string(prop.gcnArchName).find("gfx90a") == std::string::npos) {
+      height = 1024;
+      INFO("flag is hipArrayTextureGather");
+      INFO("height: " << height);
 
-    HIP_CHECK(hipMallocArray(&arrayPtr, &desc, width, height, hipArrayTextureGather));
-    testArrayAsTextureWithGather<TestType>(arrayPtr, width, height);
+      HIP_CHECK(hipMallocArray(&arrayPtr, &desc, width, height, hipArrayTextureGather));
+      testArrayAsTextureWithGather<TestType>(arrayPtr, width, height);
+    } else {
+      SUCCEED("tex2Dgather is not supported for gfx90a, Hence"
+               "skipping the testcase for this device " << device);
+    }
   }
 #endif