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Diffstat (limited to 'libgomp/target.c')
-rw-r--r-- | libgomp/target.c | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/libgomp/target.c b/libgomp/target.c new file mode 100644 index 00000000000..2e9865f2ae3 --- /dev/null +++ b/libgomp/target.c @@ -0,0 +1,96 @@ +/* Copyright (C) 2013 Free Software Foundation, Inc. + Contributed by Jakub Jelinek <jakub@redhat.com>. + + This file is part of the GNU OpenMP Library (libgomp). + + Libgomp is free software; you can redistribute it and/or modify it + under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3, or (at your option) + any later version. + + Libgomp is distributed in the hope that it will be useful, but WITHOUT ANY + WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS + FOR A PARTICULAR PURPOSE. See the GNU General Public License for + more details. + + Under Section 7 of GPL version 3, you are granted additional + permissions described in the GCC Runtime Library Exception, version + 3.1, as published by the Free Software Foundation. + + You should have received a copy of the GNU General Public License and + a copy of the GCC Runtime Library Exception along with this program; + see the files COPYING3 and COPYING.RUNTIME respectively. If not, see + <http://www.gnu.org/licenses/>. */ + +/* This file handles the maintainence of threads in response to team + creation and termination. */ + +#include "libgomp.h" +#include <limits.h> +#include <stdbool.h> +#include <stdlib.h> +#include <string.h> + +attribute_hidden int +gomp_get_num_devices (void) +{ + return 0; +} + +/* Called when encountering a target directive. If DEVICE + is -1, it means use device-var ICV. If it is -2 (or any other value + larger than last available hw device, use host fallback. + FN is address of host code, OPENMP_TARGET contains value of the + __OPENMP_TARGET__ symbol in the shared library or binary that invokes + GOMP_target. HOSTADDRS, SIZES and KINDS are arrays + with MAPNUM entries, with addresses of the host objects, + sizes of the host objects (resp. for pointer kind pointer bias + and assumed sizeof (void *) size) and kinds. */ + +void +GOMP_target (int device, void (*fn) (void *), const void *openmp_target, + size_t mapnum, void **hostaddrs, size_t *sizes, + unsigned char *kinds) +{ + /* Host fallback. */ + struct gomp_thread old_thr, *thr = gomp_thread (); + old_thr = *thr; + memset (thr, '\0', sizeof (*thr)); + if (gomp_places_list) + { + thr->place = old_thr.place; + thr->ts.place_partition_len = gomp_places_list_len; + } + fn (hostaddrs); + gomp_free_thread (thr); + *thr = old_thr; +} + +void +GOMP_target_data (int device, const void *openmp_target, size_t mapnum, + void **hostaddrs, size_t *sizes, unsigned char *kinds) +{ +} + +void +GOMP_target_end_data (void) +{ +} + +void +GOMP_target_update (int device, const void *openmp_target, size_t mapnum, + void **hostaddrs, size_t *sizes, unsigned char *kinds) +{ +} + +void +GOMP_teams (unsigned int num_teams, unsigned int thread_limit) +{ + if (thread_limit) + { + struct gomp_task_icv *icv = gomp_icv (true); + icv->thread_limit_var + = thread_limit > INT_MAX ? UINT_MAX : thread_limit; + } + (void) num_teams; +} |