SWDEV-340649 - Removes calls to commitMemory in hmm path

Change-Id: I8d381b4c3f5cf95628487e0d10ae643443c9709d

rocclr/device/rocm/rocmemory.cpp

@@ -643,8 +643,9 @@ void Buffer::destroy() {
         if (memFlags & CL_MEM_ALLOC_HOST_PTR) {
           if (dev().info().hmmSupported_) {
             // AMD HMM path. Destroy system memory
-            amd::Os::uncommitMemory(deviceMemory_, size());
-            amd::Os::releaseMemory(deviceMemory_, size());
+            if (!(amd::Os::releaseMemory(deviceMemory_, size()))) {
+              ClPrint(amd::LOG_DEBUG, amd::LOG_MEM, "[ROCClr] munmap failed \n");
+            }
           } else {
             dev().hostFree(deviceMemory_, size());
           }
@@ -746,7 +747,6 @@ bool Buffer::create(bool alloc_local) {
             if (deviceMemory_ == NULL) {
               return false;
             }
-            amd::Os::commitMemory(deviceMemory_, size(), amd::Os::MEM_PROT_RW);
             // Currently HMM requires cirtain initial calls to mark sysmem allocation as
             // GPU accessible or prefetch memory into GPU
             if (!dev().SvmAllocInit(deviceMemory_, size())) {