mirror of
https://gcc.gnu.org/git/gcc.git
synced 2024-11-30 23:35:00 +08:00
97 lines
2.9 KiB
C
97 lines
2.9 KiB
C
/* Copyright (C) 2013-2014 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;
|
|
}
|