added DPPLUSM_GetPointerDevice

Author: oleksandr-pavlyk

backends/include/dppl_sycl_usm_interface.h

@@ -116,4 +116,13 @@ const char *
 DPPLUSM_GetPointerType (__dppl_keep const DPPLSyclUSMRef MRef,
                         __dppl_keep const DPPLSyclContextRef CRef);
 
+/*!
+ * @brief Get the device associated with USM pointer.
+ *
+ * @return A DPPLSyclDeviceRef pointer to the sycl device.
+ */
+DPPL_API
+DPPLSyclDeviceRef
+DPPLUSM_GetPointerDevice (__dppl_keep const DPPLSyclUSMRef MRef,
+			  __dppl_keep const DPPLSyclContextRef CRef);
 DPPL_C_EXTERN_C_END

backends/source/dppl_sycl_usm_interface.cpp

@@ -25,6 +25,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "dppl_sycl_usm_interface.h"
+#include "dppl_sycl_device_interface.h"
 #include "Support/CBindingWrapping.h"
 
 #include <CL/sycl.hpp>                /* SYCL headers   */
@@ -35,6 +36,7 @@ namespace
 {
 // Create wrappers for C Binding types (see CBindingWrapping.h).
 DEFINE_SIMPLE_CONVERSION_FUNCTIONS(queue, DPPLSyclQueueRef)
+DEFINE_SIMPLE_CONVERSION_FUNCTIONS(device, DPPLSyclDeviceRef)
 DEFINE_SIMPLE_CONVERSION_FUNCTIONS(context, DPPLSyclContextRef)
 DEFINE_SIMPLE_CONVERSION_FUNCTIONS(void, DPPLSyclUSMRef)
 
@@ -126,3 +128,15 @@ DPPLUSM_GetPointerType (__dppl_keep const DPPLSyclUSMRef MRef,
             return "unknown";
     }
 }
+
+DPPLSyclDeviceRef
+DPPLUSM_GetPointerDevice(__dppl_keep const DPPLSyclUSMRef MRef,
+			 __dppl_keep const DPPLSyclContextRef CRef)
+{
+    auto Ptr = unwrap(MRef);
+    auto C = unwrap(CRef);
+
+    auto Dev = get_pointer_device(Ptr, *C);
+
+    return wrap(new device(Dev));
+}

dpctl/_backend.pxd

@@ -219,3 +219,5 @@ cdef extern from "dppl_sycl_usm_interface.h":
                                      DPPLSyclContextRef CRef)
     cdef const char* DPPLUSM_GetPointerType (DPPLSyclUSMRef MRef,
                                              DPPLSyclContextRef CRef)
+    cdef DPPLSyclDeviceRef DPPLUSM_GetPointerDevice (DPPLSyclUSMRef MRef,
+                                                     DPPLSyclContextRef CRef)