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Diffstat (limited to 'sysdeps/tile/atomic-machine.h')
| -rw-r--r-- | sysdeps/tile/atomic-machine.h | 110 |
1 files changed, 0 insertions, 110 deletions
diff --git a/sysdeps/tile/atomic-machine.h b/sysdeps/tile/atomic-machine.h deleted file mode 100644 index 482b460c8c..0000000000 --- a/sysdeps/tile/atomic-machine.h +++ /dev/null @@ -1,110 +0,0 @@ -/* Copyright (C) 2011-2018 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 _ATOMIC_MACHINE_H -#define _ATOMIC_MACHINE_H 1 - -#include <stdint.h> -#include <features.h> -#include <arch/spr_def.h> - -typedef int32_t atomic32_t; -typedef uint32_t uatomic32_t; -typedef int_fast32_t atomic_fast32_t; -typedef uint_fast32_t uatomic_fast32_t; - -typedef int64_t atomic64_t; -typedef uint64_t uatomic64_t; -typedef int_fast64_t atomic_fast64_t; -typedef uint_fast64_t uatomic_fast64_t; - -typedef intptr_t atomicptr_t; -typedef uintptr_t uatomicptr_t; -typedef intmax_t atomic_max_t; -typedef uintmax_t uatomic_max_t; - -#ifdef _LP64 -# define __HAVE_64B_ATOMICS 1 -#else -/* tilegx32 does have 64-bit atomics, but assumptions in the semaphore - code mean that unaligned 64-bit atomics will be used if this symbol - is true, and unaligned atomics are not supported on tile. */ -# define __HAVE_64B_ATOMICS 0 -#endif - -#define USE_ATOMIC_COMPILER_BUILTINS 0 -#define ATOMIC_EXCHANGE_USES_CAS 0 - -/* 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) - -/* Barrier macro. */ -#define atomic_full_barrier() __sync_synchronize() - -/* APIs with "release" semantics. */ -#define atomic_compare_and_exchange_val_rel(mem, n, o) \ - ({ \ - atomic_full_barrier (); \ - atomic_compare_and_exchange_val_acq ((mem), (n), (o)); \ - }) -#define atomic_exchange_rel(mem, n) \ - ({ \ - atomic_full_barrier (); \ - atomic_exchange_acq ((mem), (n)); \ - }) - -/* Various macros that should just be synonyms. */ -#define catomic_exchange_and_add atomic_exchange_and_add -#define atomic_and(mem, mask) ((void) atomic_and_val ((mem), (mask))) -#define catomic_and atomic_and -#define atomic_or(mem, mask) ((void) atomic_or_val ((mem), (mask))) -#define catomic_or atomic_or - -/* atomic_bit_test_set in terms of atomic_or_val. */ -#define atomic_bit_test_set(mem, bit) \ - ({ __typeof (*(mem)) __att0_mask = ((__typeof (*(mem))) 1 << (bit)); \ - atomic_or_val ((mem), __att0_mask) & __att0_mask; }) - -/* - * This non-existent symbol is called for unsupporrted sizes, - * indicating a bug in the caller. - */ -extern int __atomic_error_bad_argument_size(void) - __attribute__ ((warning ("bad sizeof atomic argument"))); - -#endif /* _ATOMIC_MACHINE_H */ |