SWDEV-514141 - Fix zero clock rate issues (#4)

1.Remove clock functions from some tests that don't need them.
2.In some memory pool tests and coherency tests, timer-based kernel
delay isn't reliable, use pinned host based notification instead.
3.Add CHECK_PCIE_ATOMICS_SUPPORT before some tests.
4.catch/unit/memory/hipMemoryAllocateCoherent.cc is removed
as it is useless and originally excluded in building.
5.Some tests can still pass even if clock rate =0, thus they
  will be kept as is.
6.Some logic and format improvement in some tests.

Change-Id: I6b3c6bf54c61cffd45cd6f17c75998f751b75725

catch/include/hip_test_common.hh

@@ -314,6 +314,15 @@ inline bool isImageSupported() {
   return imageSupport != 0;
 }
 
+inline bool isPcieAtomicsSupported() {
+  int pcieAtomics = 1;
+  int device;
+  HIP_CHECK(hipGetDevice(&device));
+  HIPCHECK(hipDeviceGetAttribute(&pcieAtomics, hipDeviceAttributeHostNativeAtomicSupported,
+           device));
+  return pcieAtomics != 0;
+}
+
 inline bool areWarpMatchFunctionsSupported() {
   int matchFunctionsSupported = 1;
 #if HT_NVIDIA
@@ -500,6 +509,13 @@ class BlockingContext {
     return;                                                                                        \
   }
 
+// This must be called in host-device memory conherency tests
+#define CHECK_PCIE_ATOMICS_SUPPORT                                                                 \
+  if (!HipTest::isPcieAtomicsSupported()) {                                                        \
+    INFO("Pcie atomics is not support on the device. Skipped.");                                   \
+    return;                                                                                        \
+  }
+
 // This must be called in the beginning of warp test app's main() to indicate warp match functions
 // are supported.
 #define CHECK_WARP_MATCH_FUNCTIONS_SUPPORT                                                         \