diff --git a/debug.cpp b/debug.cpp
index 5152aaf483..bc346e6a28 100644
--- a/debug.cpp
+++ b/debug.cpp
@@ -32,11 +32,13 @@ static uint32_t runtime_capabilities_mask = 0;
 
 HSAKMT_STATUS HSAKMTAPI hsaKmtDbgRegister(HSAuint32 NodeId) {
   CHECK_DXG_OPEN();
+  pr_warn_once("not supported\n");
   return HSAKMT_STATUS_NOT_SUPPORTED;
 }
 
 HSAKMT_STATUS HSAKMTAPI hsaKmtDbgUnregister(HSAuint32 NodeId) {
   CHECK_DXG_OPEN();
+  pr_warn_once("not supported\n");
   return HSAKMT_STATUS_NOT_SUPPORTED;
 }
 
@@ -44,6 +46,7 @@ HSAKMT_STATUS HSAKMTAPI hsaKmtDbgWavefrontControl(
     HSAuint32 NodeId, HSA_DBG_WAVEOP Operand, HSA_DBG_WAVEMODE Mode,
     HSAuint32 TrapId, HsaDbgWaveMessage *DbgWaveMsgRing) {
   CHECK_DXG_OPEN();
+  pr_warn_once("not supported\n");
   return HSAKMT_STATUS_NOT_SUPPORTED;
 }
 
@@ -51,11 +54,13 @@ HSAKMT_STATUS HSAKMTAPI hsaKmtDbgAddressWatch(
     HSAuint32 NodeId, HSAuint32 NumWatchPoints, HSA_DBG_WATCH_MODE WatchMode[],
     void *WatchAddress[], HSAuint64 WatchMask[], HsaEvent *WatchEvent[]) {
   CHECK_DXG_OPEN();
+  pr_warn_once("not supported\n");
   return HSAKMT_STATUS_NOT_SUPPORTED;
 }
 
 HSAKMT_STATUS HSAKMTAPI hsaKmtCheckRuntimeDebugSupport(void) {
   CHECK_DXG_OPEN();
+  pr_warn_once("not supported\n");
   return HSAKMT_STATUS_NOT_SUPPORTED;
 }
 
@@ -88,11 +93,12 @@ HSAKMT_STATUS HSAKMTAPI hsaKmtGetRuntimeCapabilities(HSAuint32 *caps_mask) {
 HSAKMT_STATUS HSAKMTAPI hsaKmtDbgEnable(void **runtime_info,
                                         HSAuint32 *data_size) {
   CHECK_DXG_OPEN();
-
+  pr_warn_once("not supported\n");
   return HSAKMT_STATUS_NOT_SUPPORTED;
 }
 HSAKMT_STATUS HSAKMTAPI hsaKmtDbgDisable(void) {
   CHECK_DXG_OPEN();
+  pr_warn_once("not supported\n");
   return HSAKMT_STATUS_NOT_SUPPORTED;
 }
 
@@ -100,6 +106,7 @@ HSAKMT_STATUS HSAKMTAPI hsaKmtDbgGetDeviceData(void **data,
                                                HSAuint32 *n_entries,
                                                HSAuint32 *entry_size) {
   CHECK_DXG_OPEN();
+  pr_warn_once("not supported\n");
   return HSAKMT_STATUS_NOT_SUPPORTED;
 }
 
@@ -107,6 +114,7 @@ HSAKMT_STATUS HSAKMTAPI hsaKmtDbgGetQueueData(void **data, HSAuint32 *n_entries,
                                               HSAuint32 *entry_size,
                                               bool suspend_queues) {
   CHECK_DXG_OPEN();
+  pr_warn_once("not supported\n");
   return HSAKMT_STATUS_NOT_SUPPORTED;
 }
 
@@ -114,5 +122,6 @@ HSAKMT_STATUS HSAKMTAPI
 hsaKmtDebugTrapIoctl(struct kfd_ioctl_dbg_trap_args *args, HSA_QUEUEID *Queues,
                      HSAuint64 *DebugReturn) {
   CHECK_DXG_OPEN();
+  pr_warn_once("not supported\n");
   return HSAKMT_STATUS_NOT_SUPPORTED;
 }
diff --git a/events.cpp b/events.cpp
index 7e4f80ce4d..e2fd3a85ca 100644
--- a/events.cpp
+++ b/events.cpp
@@ -33,14 +33,14 @@ HSAKMT_STATUS HSAKMTAPI hsaKmtCreateEvent(HsaEventDescriptor *EventDesc,
                                           bool ManualReset, bool IsSignaled,
                                           HsaEvent **Event) {
   CHECK_DXG_OPEN();
-
+  pr_warn_once("not supported\n");
   assert(false);
   return HSAKMT_STATUS_SUCCESS;
 }
 
 HSAKMT_STATUS HSAKMTAPI hsaKmtDestroyEvent(HsaEvent *Event) {
   CHECK_DXG_OPEN();
-
+  pr_warn_once("not supported\n");
   if (!Event)
     return HSAKMT_STATUS_INVALID_HANDLE;
 
@@ -50,7 +50,7 @@ HSAKMT_STATUS HSAKMTAPI hsaKmtDestroyEvent(HsaEvent *Event) {
 
 HSAKMT_STATUS HSAKMTAPI hsaKmtSetEvent(HsaEvent *Event) {
   CHECK_DXG_OPEN();
-
+  pr_warn_once("not supported\n");
   if (!Event)
     return HSAKMT_STATUS_INVALID_HANDLE;
 
@@ -60,7 +60,7 @@ HSAKMT_STATUS HSAKMTAPI hsaKmtSetEvent(HsaEvent *Event) {
 
 HSAKMT_STATUS HSAKMTAPI hsaKmtResetEvent(HsaEvent *Event) {
   CHECK_DXG_OPEN();
-
+  pr_warn_once("not supported\n");
   if (!Event)
     return HSAKMT_STATUS_INVALID_HANDLE;
 
@@ -70,7 +70,7 @@ HSAKMT_STATUS HSAKMTAPI hsaKmtResetEvent(HsaEvent *Event) {
 
 HSAKMT_STATUS HSAKMTAPI hsaKmtQueryEventState(HsaEvent *Event) {
   CHECK_DXG_OPEN();
-
+  pr_warn_once("not supported\n");
   if (!Event)
     return HSAKMT_STATUS_INVALID_HANDLE;
 
@@ -122,7 +122,6 @@ HSAKMT_STATUS HSAKMTAPI hsaKmtWaitOnMultipleEvents_Ext(HsaEvent *Events[],
 
 HSAKMT_STATUS HSAKMTAPI hsaKmtOpenSMI(HSAuint32 NodeId, int *fd) {
   CHECK_DXG_OPEN();
-
   pr_debug("node id %d\n", NodeId);
   assert(false);
   return HSAKMT_STATUS_SUCCESS;
diff --git a/memory.cpp b/memory.cpp
index effdd2a9bb..9d97935031 100644
--- a/memory.cpp
+++ b/memory.cpp
@@ -74,7 +74,7 @@ HSAKMT_STATUS HSAKMTAPI hsaKmtSetMemoryPolicy(HSAuint32 Node,
                                               void *MemoryAddressAlternate,
                                               HSAuint64 MemorySizeInBytes) {
   CHECK_DXG_OPEN();
-
+  pr_warn_once("not implemented\n");
   assert(false);
   return HSAKMT_STATUS_SUCCESS;
 }
@@ -236,7 +236,7 @@ HSAKMT_STATUS HSAKMTAPI hsaKmtAvailableMemory(HSAuint32 Node,
 HSAKMT_STATUS HSAKMTAPI hsaKmtRegisterMemory(void *MemoryAddress,
                                              HSAuint64 MemorySizeInBytes) {
   CHECK_DXG_OPEN();
-
+  pr_warn_once("not implemented\n");
   assert(false);
   return HSAKMT_STATUS_SUCCESS;
 }
@@ -359,7 +359,7 @@ HSAKMT_STATUS HSAKMTAPI
 hsaKmtShareMemory(void *MemoryAddress, HSAuint64 SizeInBytes,
                   HsaSharedMemoryHandle *SharedMemoryHandle) {
   CHECK_DXG_OPEN();
-
+  pr_warn_once("not implemented\n");
   assert(false);
   return HSAKMT_STATUS_SUCCESS;
 }
@@ -368,7 +368,7 @@ HSAKMT_STATUS HSAKMTAPI
 hsaKmtRegisterSharedHandle(const HsaSharedMemoryHandle *SharedMemoryHandle,
                            void **MemoryAddress, HSAuint64 *SizeInBytes) {
   CHECK_DXG_OPEN();
-
+  pr_warn_once("not implemented\n");
   assert(false);
   return HSAKMT_STATUS_SUCCESS;
 }
@@ -377,7 +377,7 @@ HSAKMT_STATUS HSAKMTAPI hsaKmtRegisterSharedHandleToNodes(
     const HsaSharedMemoryHandle *SharedMemoryHandle, void **MemoryAddress,
     HSAuint64 *SizeInBytes, HSAuint64 NumberOfNodes, HSAuint32 *NodeArray) {
   CHECK_DXG_OPEN();
-
+  pr_warn_once("not implemented\n");
   assert(false);
   return HSAKMT_STATUS_SUCCESS;
 }
@@ -388,8 +388,8 @@ HSAKMT_STATUS HSAKMTAPI hsaKmtProcessVMRead(HSAuint32 Pid,
                                             HsaMemoryRange *RemoteMemoryArray,
                                             HSAuint64 RemoteMemoryArrayCount,
                                             HSAuint64 *SizeCopied) {
-  pr_err("[%s] Deprecated\n", __func__);
-
+  CHECK_DXG_OPEN();
+  pr_warn_once("has been deprecated\n");
   assert(false);
   return HSAKMT_STATUS_NOT_IMPLEMENTED;
 }
@@ -400,8 +400,8 @@ HSAKMT_STATUS HSAKMTAPI hsaKmtProcessVMWrite(HSAuint32 Pid,
                                              HsaMemoryRange *RemoteMemoryArray,
                                              HSAuint64 RemoteMemoryArrayCount,
                                              HSAuint64 *SizeCopied) {
-  pr_err("[%s] Deprecated\n", __func__);
-
+  CHECK_DXG_OPEN();
+  pr_warn_once("has been deprecated\n");
   assert(false);
   return HSAKMT_STATUS_NOT_IMPLEMENTED;
 }
@@ -542,6 +542,8 @@ HSAKMT_STATUS HSAKMTAPI hsaKmtMapGraphicHandle(HSAuint32 NodeId,
                                                HSAuint64 GraphicResourceOffset,
                                                HSAuint64 GraphicResourceSize,
                                                HSAuint64 *FlatMemoryAddress) {
+  CHECK_DXG_OPEN();
+  pr_warn_once("not implemented\n");
   /* This API was only ever implemented in KFD for Kaveri and
    * was never upstreamed. There are no open-source users of
    * this interface. It has been superseded by
@@ -554,7 +556,7 @@ HSAKMT_STATUS HSAKMTAPI hsaKmtUnmapGraphicHandle(HSAuint32 NodeId,
                                                  HSAuint64 FlatMemoryAddress,
                                                  HSAuint64 SizeInBytes) {
   CHECK_DXG_OPEN();
-
+  pr_warn_once("not implemented\n");
   assert(false);
   return HSAKMT_STATUS_SUCCESS;
 }
@@ -562,7 +564,7 @@ HSAKMT_STATUS HSAKMTAPI hsaKmtUnmapGraphicHandle(HSAuint32 NodeId,
 HSAKMT_STATUS HSAKMTAPI hsaKmtGetTileConfig(HSAuint32 NodeId,
                                             HsaGpuTileConfig *config) {
   CHECK_DXG_OPEN();
-
+  pr_warn_once("not implemented\n");
   assert(false);
   return HSAKMT_STATUS_SUCCESS;
 }
@@ -609,12 +611,14 @@ HSAKMT_STATUS HSAKMTAPI hsaKmtQueryPointerInfo(const void *Pointer,
 HSAKMT_STATUS HSAKMTAPI hsaKmtSetMemoryUserData(const void *Pointer,
                                                 void *UserData) {
   CHECK_DXG_OPEN();
-
+  pr_warn_once("not implemented\n");
   assert(false);
   return HSAKMT_STATUS_SUCCESS;
 }
 
 HSAKMT_STATUS HSAKMTAPI hsaKmtReplaceAsanHeaderPage(void *addr) {
+  CHECK_DXG_OPEN();
+  pr_warn_once("not supported\n");
   assert(false);
 #ifdef SANITIZER_AMDGPU
   pr_debug("address %p\n", addr);
@@ -627,6 +631,8 @@ HSAKMT_STATUS HSAKMTAPI hsaKmtReplaceAsanHeaderPage(void *addr) {
 }
 
 HSAKMT_STATUS HSAKMTAPI hsaKmtReturnAsanHeaderPage(void *addr) {
+  CHECK_DXG_OPEN();
+  pr_warn_once("not supported\n");
   assert(false);
 #ifdef SANITIZER_AMDGPU
   pr_debug("address %p\n", addr);
diff --git a/pc_sampling.cpp b/pc_sampling.cpp
index 247726239b..e8b49c0f88 100644
--- a/pc_sampling.cpp
+++ b/pc_sampling.cpp
@@ -32,6 +32,7 @@
 HSAKMT_STATUS HSAKMTAPI hsaKmtPcSamplingSupport(void) {
   CHECK_DXG_OPEN();
   // Used for profiling tools
+  pr_warn_once("not supported\n");
   return HSAKMT_STATUS_NOT_SUPPORTED;
 }
 
@@ -40,6 +41,7 @@ hsaKmtPcSamplingQueryCapabilities(HSAuint32 NodeId, void *sample_info,
                                   HSAuint32 sample_info_sz, HSAuint32 *size) {
   CHECK_DXG_OPEN();
   // Used for profiling tools
+  pr_warn_once("not supported\n");
   return HSAKMT_STATUS_NOT_SUPPORTED;
 }
 
@@ -48,6 +50,7 @@ HSAKMT_STATUS HSAKMTAPI hsaKmtPcSamplingCreate(HSAuint32 NodeId,
                                                HsaPcSamplingTraceId *traceId) {
   CHECK_DXG_OPEN();
   // Used for profiling tools
+  pr_warn_once("not supported\n");
   return HSAKMT_STATUS_NOT_SUPPORTED;
 }
 
@@ -55,6 +58,7 @@ HSAKMT_STATUS HSAKMTAPI hsaKmtPcSamplingDestroy(HSAuint32 NodeId,
                                                 HsaPcSamplingTraceId traceId) {
   CHECK_DXG_OPEN();
   // Used for profiling tools
+  pr_warn_once("not supported\n");
   return HSAKMT_STATUS_NOT_SUPPORTED;
 }
 
@@ -62,6 +66,7 @@ HSAKMT_STATUS HSAKMTAPI hsaKmtPcSamplingStart(HSAuint32 NodeId,
                                               HsaPcSamplingTraceId traceId) {
   CHECK_DXG_OPEN();
   // Used for profiling tools
+  pr_warn_once("not supported\n");
   return HSAKMT_STATUS_NOT_SUPPORTED;
 }
 
@@ -69,5 +74,6 @@ HSAKMT_STATUS HSAKMTAPI hsaKmtPcSamplingStop(HSAuint32 NodeId,
                                              HsaPcSamplingTraceId traceId) {
   CHECK_DXG_OPEN();
   // Used for profiling tools
+  pr_warn_once("not supported\n");
   return HSAKMT_STATUS_NOT_SUPPORTED;
 }
diff --git a/perfctr.cpp b/perfctr.cpp
index 9f2b755052..07cd515669 100644
--- a/perfctr.cpp
+++ b/perfctr.cpp
@@ -26,6 +26,8 @@
 
 HSAKMT_STATUS HSAKMTAPI hsaKmtPmcGetCounterProperties(
     HSAuint32 NodeId, HsaCounterProperties **CounterProperties) {
+  CHECK_DXG_OPEN();
+  pr_warn_once("not supported\n");
   return HSAKMT_STATUS_NOT_SUPPORTED;
 }
 
@@ -35,6 +37,7 @@ HSAKMT_STATUS HSAKMTAPI hsaKmtPmcRegisterTrace(HSAuint32 NodeId,
                                                HsaCounter *Counters,
                                                HsaPmcTraceRoot *TraceRoot) {
   CHECK_DXG_OPEN();
+  pr_warn_once("not supported\n");
   return HSAKMT_STATUS_NOT_SUPPORTED;
 }
 
@@ -43,18 +46,21 @@ HSAKMT_STATUS HSAKMTAPI hsaKmtPmcRegisterTrace(HSAuint32 NodeId,
 HSAKMT_STATUS HSAKMTAPI hsaKmtPmcUnregisterTrace(HSAuint32 NodeId,
                                                  HSATraceId TraceId) {
   CHECK_DXG_OPEN();
+  pr_warn_once("not supported\n");
   return HSAKMT_STATUS_NOT_SUPPORTED;
 }
 
 HSAKMT_STATUS HSAKMTAPI hsaKmtPmcAcquireTraceAccess(HSAuint32 NodeId,
                                                     HSATraceId TraceId) {
   CHECK_DXG_OPEN();
+  pr_warn_once("not supported\n");
   return HSAKMT_STATUS_NOT_SUPPORTED;
 }
 
 HSAKMT_STATUS HSAKMTAPI hsaKmtPmcReleaseTraceAccess(HSAuint32 NodeId,
                                                     HSATraceId TraceId) {
   CHECK_DXG_OPEN();
+  pr_warn_once("not supported\n");
   return HSAKMT_STATUS_NOT_SUPPORTED;
 }
 
@@ -64,6 +70,7 @@ HSAKMT_STATUS HSAKMTAPI hsaKmtPmcStartTrace(HSATraceId TraceId,
                                             void *TraceBuffer,
                                             HSAuint64 TraceBufferSizeBytes) {
   CHECK_DXG_OPEN();
+  pr_warn_once("not supported\n");
   return HSAKMT_STATUS_NOT_SUPPORTED;
 }
 
@@ -71,6 +78,7 @@ HSAKMT_STATUS HSAKMTAPI hsaKmtPmcStartTrace(HSATraceId TraceId,
  * has registered */
 HSAKMT_STATUS HSAKMTAPI hsaKmtPmcQueryTrace(HSATraceId TraceId) {
   CHECK_DXG_OPEN();
+  pr_warn_once("not supported\n");
   return HSAKMT_STATUS_NOT_SUPPORTED;
 }
 
@@ -78,5 +86,6 @@ HSAKMT_STATUS HSAKMTAPI hsaKmtPmcQueryTrace(HSATraceId TraceId) {
  * counters */
 HSAKMT_STATUS HSAKMTAPI hsaKmtPmcStopTrace(HSATraceId TraceId) {
   CHECK_DXG_OPEN();
+  pr_warn_once("not supported\n");
   return HSAKMT_STATUS_NOT_SUPPORTED;
 }
diff --git a/queues.cpp b/queues.cpp
index f89c81ce83..58a3ede5d3 100644
--- a/queues.cpp
+++ b/queues.cpp
@@ -158,7 +158,7 @@ HSAKMT_STATUS HSAKMTAPI hsaKmtSetQueueCUMask(HSA_QUEUEID QueueId,
   if (CUMaskCount == 0 || !QueueCUMask || ((CUMaskCount % 32) != 0))
     return HSAKMT_STATUS_INVALID_PARAMETER;
 
-  pr_debug("%s not implemented\n", __func__);
+  pr_warn_once("not implemented\n");
 
   return HSAKMT_STATUS_SUCCESS;
 }
@@ -181,8 +181,7 @@ HSAKMT_STATUS HSAKMTAPI hsaKmtSetTrapHandler(HSAuint32 Node,
                                              void *TrapBufferBaseAddress,
                                              HSAuint64 TrapBufferSizeInBytes) {
   CHECK_DXG_OPEN();
-
-  pr_debug("%s not implemented\n", __func__);
+  pr_warn_once("not implemented\n");
   return HSAKMT_STATUS_SUCCESS;
 }
 
diff --git a/spm.cpp b/spm.cpp
index d01b3c3e2d..9efb91262e 100644
--- a/spm.cpp
+++ b/spm.cpp
@@ -30,6 +30,7 @@
 HSAKMT_STATUS HSAKMTAPI hsaKmtSPMAcquire(HSAuint32 PreferredNode) {
   CHECK_DXG_OPEN();
   // Used for profiling tools
+  pr_warn_once("not supported\n");
   return HSAKMT_STATUS_NOT_SUPPORTED;
 }
 
@@ -38,11 +39,13 @@ HSAKMT_STATUS HSAKMTAPI hsaKmtSPMSetDestBuffer(
     HSAuint32 *SizeCopied, void *DestMemoryAddress, bool *isSPMDataLoss) {
   CHECK_DXG_OPEN();
   // Used for profiling tools
+  pr_warn_once("not supported\n");
   return HSAKMT_STATUS_NOT_SUPPORTED;
 }
 
 HSAKMT_STATUS HSAKMTAPI hsaKmtSPMRelease(HSAuint32 PreferredNode) {
   CHECK_DXG_OPEN();
   // Used for profiling tools
+  pr_warn_once("not supported\n");
   return HSAKMT_STATUS_NOT_SUPPORTED;
 }
diff --git a/svm.cpp b/svm.cpp
index 9a45f89de9..0bc1f84f8e 100644
--- a/svm.cpp
+++ b/svm.cpp
@@ -30,6 +30,7 @@ HSAKMT_STATUS HSAKMTAPI hsaKmtSVMSetAttr(void *start_addr, HSAuint64 size,
                                          unsigned int nattr,
                                          HSA_SVM_ATTRIBUTE *attrs) {
   CHECK_DXG_OPEN();
+  pr_warn_once("not supported\n");
   return HSAKMT_STATUS_NOT_SUPPORTED;
 }
 
@@ -37,16 +38,19 @@ HSAKMT_STATUS HSAKMTAPI hsaKmtSVMGetAttr(void *start_addr, HSAuint64 size,
                                          unsigned int nattr,
                                          HSA_SVM_ATTRIBUTE *attrs) {
   CHECK_DXG_OPEN();
+  pr_warn_once("not supported\n");
   return HSAKMT_STATUS_NOT_SUPPORTED;
 }
 
 HSAKMT_STATUS HSAKMTAPI hsaKmtSetXNACKMode(HSAint32 enable) {
   CHECK_DXG_OPEN();
+  pr_warn_once("not supported\n");
   return HSAKMT_STATUS_NOT_SUPPORTED;
 }
 
 HSAKMT_STATUS HSAKMTAPI hsaKmtGetXNACKMode(HSAint32 *enable) {
   CHECK_DXG_OPEN();
+  pr_warn_once("not supported\n");
   *enable = false;
   return HSAKMT_STATUS_SUCCESS;
 }