added malloc and free device functions

1. Added malloc and free device functions
2. Added test which check malloc and free functions
TODO: Need to add support for multiple device. Works only on one device (multi device support id NOT available).

Change-Id: Id11fc36463915d6ad46c264d5a20c8feb2d2c17c

tests/src/kernel/hipTestMallocKernel.cpp

@@ -0,0 +1,52 @@
+/*
+Copyright (c) 2015-2016 Advanced Micro Devices, Inc. All rights reserved.
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+*/
+
+#include<hip/hip_runtime.h>
+#include<hip/hip_runtime_api.h>
+#include<iostream>
+
+#define NUM  1024
+#define SIZE NUM * 8
+
+__global__ void Alloc(hipLaunchParm lp, uint64_t *Ptr) {
+    int tid = hipThreadIdx_x + hipBlockIdx_x * hipBlockDim_x;
+    Ptr[tid] = (uint64_t)malloc(128);
+}
+
+__global__ void Free(hipLaunchParm lp, uint64_t *Ptr) {
+    int tid = hipThreadIdx_x + hipBlockIdx_x * hipBlockDim_x;
+    free((void*)Ptr[tid]);
+}
+
+int main()
+{
+    uint64_t *hPtr, *dPtr;
+    hPtr = new uint64_t[NUM];
+    for(uint32_t i=0;i<NUM;i++) {
+        hPtr[i] = 1;
+    }
+    hipMalloc((void**)&dPtr, SIZE);
+    hipMemcpy(dPtr, hPtr, SIZE, hipMemcpyHostToDevice);
+    hipLaunchKernel(Alloc, dim3(1,1,1), dim3(NUM,1,1), 0, 0, dPtr);
+    hipMemcpy(hPtr, dPtr, SIZE, hipMemcpyDeviceToHost);
+    
+    for(uint32_t i=1;i<NUM;i++) {
+        assert(hPtr[i] == hPtr[i-1] + 4096);
+    }
+}