150 lines
3.8 KiB
C
150 lines
3.8 KiB
C
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/* Copyright (C) 2013-2022 Free Software Foundation, Inc.
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Contributed by Jakub Jelinek <jakub@redhat.com>.
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This file is part of the GNU Offloading and Multi Processing Library
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(libgomp).
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Libgomp is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3, or (at your option)
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any later version.
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Libgomp is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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more details.
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Under Section 7 of GPL version 3, you are granted additional
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permissions described in the GCC Runtime Library Exception, version
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3.1, as published by the Free Software Foundation.
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You should have received a copy of the GNU General Public License and
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a copy of the GCC Runtime Library Exception along with this program;
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see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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<http://www.gnu.org/licenses/>. */
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#include "libgomp.h"
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#include <limits.h>
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extern int __gomp_team_num __attribute__((shared));
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bool
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GOMP_teams4 (unsigned int num_teams_lower, unsigned int num_teams_upper,
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unsigned int thread_limit, bool first)
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{
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unsigned int num_blocks, block_id;
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asm ("mov.u32 %0, %%nctaid.x;" : "=r" (num_blocks));
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if (!first)
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{
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unsigned int team_num;
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if (num_blocks > gomp_num_teams_var)
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return false;
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team_num = __gomp_team_num;
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if (team_num > gomp_num_teams_var - num_blocks)
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return false;
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__gomp_team_num = team_num + num_blocks;
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return true;
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}
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if (thread_limit)
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{
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struct gomp_task_icv *icv = gomp_icv (true);
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icv->thread_limit_var
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= thread_limit > INT_MAX ? UINT_MAX : thread_limit;
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}
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if (!num_teams_upper)
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num_teams_upper = num_blocks;
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else if (num_blocks < num_teams_lower)
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num_teams_upper = num_teams_lower;
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else if (num_blocks < num_teams_upper)
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num_teams_upper = num_blocks;
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asm ("mov.u32 %0, %%ctaid.x;" : "=r" (block_id));
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if (block_id >= num_teams_upper)
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return false;
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__gomp_team_num = block_id;
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gomp_num_teams_var = num_teams_upper - 1;
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return true;
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}
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int
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omp_pause_resource (omp_pause_resource_t kind, int device_num)
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{
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(void) kind;
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(void) device_num;
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return -1;
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}
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int
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omp_pause_resource_all (omp_pause_resource_t kind)
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{
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(void) kind;
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return -1;
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}
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ialias (omp_pause_resource)
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ialias (omp_pause_resource_all)
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void
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GOMP_target_ext (int device, void (*fn) (void *), size_t mapnum,
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void **hostaddrs, size_t *sizes, unsigned short *kinds,
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unsigned int flags, void **depend, void **args)
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{
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(void) device;
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(void) fn;
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(void) mapnum;
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(void) hostaddrs;
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(void) sizes;
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(void) kinds;
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(void) flags;
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(void) depend;
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(void) args;
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__builtin_unreachable ();
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}
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void
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GOMP_target_data_ext (int device, size_t mapnum, void **hostaddrs,
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size_t *sizes, unsigned short *kinds)
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{
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(void) device;
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(void) mapnum;
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(void) hostaddrs;
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(void) sizes;
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(void) kinds;
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__builtin_unreachable ();
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}
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void
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GOMP_target_end_data (void)
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{
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__builtin_unreachable ();
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}
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void
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GOMP_target_update_ext (int device, size_t mapnum, void **hostaddrs,
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size_t *sizes, unsigned short *kinds,
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unsigned int flags, void **depend)
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{
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(void) device;
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(void) mapnum;
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(void) hostaddrs;
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(void) sizes;
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(void) kinds;
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(void) flags;
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(void) depend;
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__builtin_unreachable ();
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}
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void
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GOMP_target_enter_exit_data (int device, size_t mapnum, void **hostaddrs,
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size_t *sizes, unsigned short *kinds,
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unsigned int flags, void **depend)
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{
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(void) device;
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(void) mapnum;
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(void) hostaddrs;
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(void) sizes;
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(void) kinds;
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(void) flags;
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(void) depend;
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__builtin_unreachable ();
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}
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