Use hipDevicePrimaryCtxRetain, get device "ctxt".

Signed-off-by: JackAKirk <jack.kirk@codeplay.com>

Author: JackAKirk

source/adapters/hip/context.cpp

@@ -108,9 +108,8 @@ urContextRetain(ur_context_handle_t hContext) {
   return UR_RESULT_SUCCESS;
 }
 
-UR_APIEXPORT ur_result_t UR_APICALL
-urContextGetNativeHandle([[maybe_unused]] ur_context_handle_t hContext,
-                         ur_native_handle_t *phNativeContext) {
+UR_APIEXPORT ur_result_t UR_APICALL urContextGetNativeHandle(
+    ur_context_handle_t hContext, ur_native_handle_t *phNativeContext) {
   // FIXME: this entry point has been deprecated in the SYCL RT and should be
   // changed to unsupported once the deprecation period has elapsed
   // The below is extremely dodgy but is the equivalent for what went before
@@ -121,7 +120,8 @@ urContextGetNativeHandle([[maybe_unused]] ur_context_handle_t hContext,
   // for cuda compatibility only and are deprecated by HIP.
 
   hipCtx_t *Ctx = nullptr;
-  UR_CHECK_ERROR(hipCtxGetCurrent(Ctx));
+  UR_CHECK_ERROR(
+      hipDevicePrimaryCtxRetain(Ctx, hContext->getDevices()[0]->get()));
   *phNativeContext = reinterpret_cast<ur_native_handle_t>(Ctx);
   return UR_RESULT_SUCCESS;
 }