SWDEV-255979 - Added support of __managed__ static variable

Change-Id: I9d5cbbecc8c19ec38a95c94ab4130465ba76c102


[ROCm/hip commit: 995e6336c6]

projects/hip/tests/src/runtimeApi/memory/hipManagedKeyword.cpp

@@ -0,0 +1,84 @@
+#include <hip/hip_runtime.h>
+#include <math.h>
+#include "test_common.h"
+
+//Enable test when compiler support is available in mainline
+/* HIT_START
+ * BUILD: %t %s ../../test_common.cpp EXCLUDE_HIP_PLATFORM amd
+ * HIT_END
+ */
+#define N 1048576
+__managed__ float A[N];   // Accessible by ALL CPU and GPU functions !!!
+__managed__ float B[N];
+__managed__  int  x = 0;
+
+__global__ void add()
+{
+    int index = blockIdx.x * blockDim.x + threadIdx.x;
+    int stride = blockDim.x * gridDim.x;
+    for (int i = index; i < N; i += stride)
+        B[i] = A[i] + B[i];
+}
+
+__global__ void GPU_func() {
+  x++;
+}
+
+bool managedSingleGPUTest() {
+   bool testResult = true;
+
+   for (int i = 0; i < N; i++) {
+      A[i] = 1.0f;
+      B[i] = 2.0f;
+   }
+
+   int blockSize = 256;
+   int numBlocks = (N + blockSize - 1) / blockSize;
+   dim3 dimGrid(numBlocks, 1, 1);
+   dim3 dimBlock(blockSize, 1, 1);
+   hipLaunchKernelGGL(add, dimGrid, dimBlock, 0, 0);
+
+   hipDeviceSynchronize();
+
+   float maxError = 0.0f;
+   for (int i = 0; i < N; i++)
+      maxError = fmax(maxError, fabs(B[i]-3.0f));
+
+   if(maxError == 0.0f) {
+      return true;
+   }
+   return false;
+}
+
+bool managedMultiGPUTest() {
+   int numDevices = 0;
+   hipGetDeviceCount(&numDevices);
+
+   for (int i = 0; i < numDevices; i++) {
+      hipSetDevice(i);
+      GPU_func<<< 1, 1 >>>( );
+      hipDeviceSynchronize();
+   }
+   if(x == numDevices) {
+      return true;
+   }
+   return false;
+}
+
+int main(int argc, char *argv[]) {
+   bool testStatus = true, OverAllStatus = true;
+   testStatus = managedSingleGPUTest();
+   if (!testStatus) {
+      printf("managed keyword Single GPU Test failed\n");
+      OverAllStatus = false;
+   }
+   testStatus = managedMultiGPUTest();
+   if (!testStatus) {
+      printf("managed keyword Multi GPU Test failed\n");
+      OverAllStatus = false;
+   }
+   if (!OverAllStatus) {
+      failed("");
+   }
+   passed();
+}