Added hipMemset2DAsync support

include/hip/hcc_detail/hip_runtime_api.h

@@ -50,6 +50,13 @@ THE SOFTWARE.
 #define HIP_LAUNCH_PARAM_BUFFER_SIZE ((void*)0x02)
 #define HIP_LAUNCH_PARAM_END ((void*)0x03)
 
+#ifdef __cplusplus
+  #define __dparm(x) \
+          = x
+#else
+  #define __dparm(x)
+#endif
+
 // Structure definitions:
 #ifdef __cplusplus
 extern "C" {
@@ -1436,6 +1443,20 @@ hipError_t hipMemsetAsync(void* dst, int value, size_t sizeBytes, hipStream_t st
 
 hipError_t hipMemset2D(void* dst, size_t pitch, int value, size_t width, size_t height);
 
+/**
+ *  @brief Fills asynchronously the memory area pointed to by dst with the constant value.
+ *
+ *  @param[in]  dst Pointer to device memory
+ *  @param[in]  pitch - data size in bytes
+ *  @param[in]  value - constant value to be set
+ *  @param[in]  width
+ *  @param[in]  height
+ *  @param[in]  stream
+ *  @return #hipSuccess, #hipErrorInvalidValue, #hipErrorMemoryFree
+ */
+
+hipError_t hipMemset2DAsync(void* dst, size_t pitch, int value, size_t width, size_t height,hipStream_t stream __dparm(0));
+
 /**
  * @brief Query memory info.
  * Return snapshot of free memory, and total allocatable memory on the device.