| /* Copyright (C) 2011-2014 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011. |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| The GNU C Library 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 |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library. If not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #ifndef _BITS_ATOMIC_H |
| #define _BITS_ATOMIC_H 1 |
| |
| #include <arch/spr_def.h> |
| |
| /* Pick appropriate 8- or 4-byte instruction. */ |
| #define __atomic_update(mem, v, op) \ |
| ((__typeof (*(mem))) (__typeof (*(mem) - *(mem))) \ |
| ((sizeof (*(mem)) == 8) ? \ |
| __insn_##op ((void *) (mem), (int64_t) (__typeof((v) - (v))) (v)) : \ |
| (sizeof (*(mem)) == 4) ? \ |
| __insn_##op##4 ((void *) (mem), (int32_t) (__typeof ((v) - (v))) (v)) : \ |
| __atomic_error_bad_argument_size())) |
| |
| #define atomic_compare_and_exchange_val_acq(mem, n, o) \ |
| ({ __insn_mtspr (SPR_CMPEXCH_VALUE, (int64_t) (__typeof ((o) - (o))) (o)); \ |
| __atomic_update (mem, n, cmpexch); }) |
| #define atomic_exchange_acq(mem, newvalue) \ |
| __atomic_update (mem, newvalue, exch) |
| #define atomic_exchange_and_add(mem, value) \ |
| __atomic_update (mem, value, fetchadd) |
| #define atomic_and_val(mem, mask) \ |
| __atomic_update (mem, mask, fetchand) |
| #define atomic_or_val(mem, mask) \ |
| __atomic_update (mem, mask, fetchor) |
| #define atomic_decrement_if_positive(mem) \ |
| __atomic_update (mem, -1, fetchaddgez) |
| |
| #include <sysdeps/tile/bits/atomic.h> |
| |
| #endif /* bits/atomic.h */ |
