@@ -378,6 +378,7 @@ GOACC_2.0 {
GOACC_wait;
GOACC_get_thread_num;
GOACC_get_num_threads;
+ GOACC_deviceptr;
};
GOACC_2.0.1 {
@@ -204,6 +204,38 @@ acc_deviceptr (void *h)
return d;
}
+/* This function is used as a helper in generated code to implement pointer
+ lookup in host_data regions. Unlike acc_deviceptr, it returns its argument
+ unchanged on a shared-memory system (e.g. the host). */
+
+void *
+GOACC_deviceptr (void *h)
+{
+ splay_tree_key n;
+ void *d;
+ void *offset;
+
+ goacc_lazy_initialize ();
+
+ struct goacc_thread *thr = goacc_thread ();
+
+ if ((thr->dev->capabilities & GOMP_OFFLOAD_CAP_SHARED_MEM) == 0)
+ {
+ n = lookup_host (thr->dev, h, 1);
+
+ if (!n)
+ return NULL;
+
+ offset = h - n->host_start;
+
+ d = n->tgt->tgt_start + n->tgt_offset + offset;
+
+ return d;
+ }
+ else
+ return h;
+}
+
/* Return the host pointer that corresponds to device data D. Or NULL
if no mapping. */
libgomp/libgomp.map b/libgomp/libgomp.map - Add new symbol GOACC_deviceptr. libgomp/oacc-mem.c b/libgomp/oacc-mem.c - Add new function GOACC_deviceptr() to handle pointer lookup for host_data regions.