diff options
Diffstat (limited to 'libgomp/libgomp.h')
| -rw-r--r-- | libgomp/libgomp.h | 68 |
1 files changed, 50 insertions, 18 deletions
diff --git a/libgomp/libgomp.h b/libgomp/libgomp.h index ef1bb49..e8901da 100644 --- a/libgomp/libgomp.h +++ b/libgomp/libgomp.h @@ -1012,11 +1012,35 @@ struct target_mem_desc { struct target_var_desc list[]; }; +/* Special value for refcount - mask to indicate existence of special + values. Right now we allocate 3 bits. */ +#define REFCOUNT_SPECIAL (~(uintptr_t) 0x7) + /* Special value for refcount - infinity. */ -#define REFCOUNT_INFINITY (~(uintptr_t) 0) +#define REFCOUNT_INFINITY (REFCOUNT_SPECIAL | 0) /* Special value for refcount - tgt_offset contains target address of the artificial pointer to "omp declare target link" object. */ -#define REFCOUNT_LINK (~(uintptr_t) 1) +#define REFCOUNT_LINK (REFCOUNT_SPECIAL | 1) + +/* Special value for refcount - structure element sibling list items. + All such key refounts have REFCOUNT_STRUCTELEM bits set, with _FLAG_FIRST + and _FLAG_LAST indicating first and last in the created sibling sequence. */ +#define REFCOUNT_STRUCTELEM (REFCOUNT_SPECIAL | 4) +#define REFCOUNT_STRUCTELEM_P(V) \ + (((V) & REFCOUNT_STRUCTELEM) == REFCOUNT_STRUCTELEM) +/* The first leading key with _FLAG_FIRST set houses the actual reference count + in the structelem_refcount field. Other siblings point to this counter value + through its structelem_refcount_ptr field. */ +#define REFCOUNT_STRUCTELEM_FLAG_FIRST (1) +/* The last key in the sibling sequence has this set. This is required to + indicate the sequence boundary, when we remove the structure sibling list + from the map. */ +#define REFCOUNT_STRUCTELEM_FLAG_LAST (2) + +#define REFCOUNT_STRUCTELEM_FIRST_P(V) \ + (REFCOUNT_STRUCTELEM_P (V) && ((V) & REFCOUNT_STRUCTELEM_FLAG_FIRST)) +#define REFCOUNT_STRUCTELEM_LAST_P(V) \ + (REFCOUNT_STRUCTELEM_P (V) && ((V) & REFCOUNT_STRUCTELEM_FLAG_LAST)) /* Special offset values. */ #define OFFSET_INLINED (~(uintptr_t) 0) @@ -1044,8 +1068,22 @@ struct splay_tree_key_s { uintptr_t tgt_offset; /* Reference count. */ uintptr_t refcount; - /* Dynamic reference count. */ - uintptr_t dynamic_refcount; + union { + /* Dynamic reference count. */ + uintptr_t dynamic_refcount; + + /* Unified reference count for structure element siblings, this is used + when REFCOUNT_STRUCTELEM_FIRST_P(k->refcount) == true, the first sibling + in a structure element sibling list item sequence. */ + uintptr_t structelem_refcount; + + /* When REFCOUNT_STRUCTELEM_P (k->refcount) == true, this field points + into the (above) structelem_refcount field of the _FIRST splay_tree_key, + the first key in the created sequence. All structure element siblings + share a single refcount in this manner. Since these two fields won't be + used at the same time, they are stashed in a union. */ + uintptr_t *structelem_refcount_ptr; + }; struct splay_tree_aux *aux; }; @@ -1188,7 +1226,7 @@ extern void gomp_acc_declare_allocate (bool, size_t, void **, size_t *, struct gomp_coalesce_buf; extern void gomp_copy_host2dev (struct gomp_device_descr *, struct goacc_asyncqueue *, void *, const void *, - size_t, struct gomp_coalesce_buf *); + size_t, bool, struct gomp_coalesce_buf *); extern void gomp_copy_dev2host (struct gomp_device_descr *, struct goacc_asyncqueue *, void *, const void *, size_t); @@ -1200,19 +1238,13 @@ extern void gomp_attach_pointer (struct gomp_device_descr *, extern void gomp_detach_pointer (struct gomp_device_descr *, struct goacc_asyncqueue *, splay_tree_key, uintptr_t, bool, struct gomp_coalesce_buf *); - -extern struct target_mem_desc *gomp_map_vars (struct gomp_device_descr *, - size_t, void **, void **, - size_t *, void *, bool, - enum gomp_map_vars_kind); -extern struct target_mem_desc *gomp_map_vars_async (struct gomp_device_descr *, - struct goacc_asyncqueue *, - size_t, void **, void **, - size_t *, void *, bool, - enum gomp_map_vars_kind); -extern void gomp_unmap_vars (struct target_mem_desc *, bool); -extern void gomp_unmap_vars_async (struct target_mem_desc *, bool, - struct goacc_asyncqueue *); +extern struct target_mem_desc *goacc_map_vars (struct gomp_device_descr *, + struct goacc_asyncqueue *, + size_t, void **, void **, + size_t *, void *, bool, + enum gomp_map_vars_kind); +extern void goacc_unmap_vars (struct target_mem_desc *, bool, + struct goacc_asyncqueue *); extern void gomp_init_device (struct gomp_device_descr *); extern bool gomp_fini_device (struct gomp_device_descr *); extern void gomp_unload_device (struct gomp_device_descr *); |