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/*
* %CopyrightBegin%
*
* Copyright Ericsson AB 2008-2011. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* %CopyrightEnd%
*/
/*
* Native ethread atomics on TILE64/TILEPro.
*
*/
#ifndef ETHREAD_TILE_ATOMIC_H
#define ETHREAD_TILE_ATOMIC_H
#define ETHR_HAVE_NATIVE_ATOMIC32 1
#define ETHR_NATIVE_ATOMIC32_IMPL "tilera"
#include <atomic.h>
/* An atomic is an aligned int accessed via locked operations.
*/
typedef struct {
volatile ethr_sint32_t counter;
} ethr_native_atomic32_t;
#if defined(ETHR_TRY_INLINE_FUNCS) || defined(ETHR_ATOMIC_IMPL__)
#define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_ADDR 1
static ETHR_INLINE ethr_sint32_t *
ethr_native_atomic32_addr(ethr_native_atomic32_t *var)
{
return (ethr_sint32_t *) &var->counter;
}
#define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_INIT 1
static ETHR_INLINE void
ethr_native_atomic32_init(ethr_native_atomic32_t *var, ethr_sint32_t i)
{
var->counter = i;
}
#define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_READ 1
static ETHR_INLINE ethr_sint32_t
ethr_native_atomic32_read(ethr_native_atomic32_t *var)
{
return var->counter;
}
#define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_READ_ACQB 1
static ETHR_INLINE ethr_sint32_t
ethr_native_atomic32_read_acqb(ethr_native_atomic32_t *var)
{
return atomic_compare_and_exchange_val_acq(&var->counter,
0x81818181,
0x81818181);
}
#define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_ADD 1
static ETHR_INLINE void
ethr_native_atomic32_add(ethr_native_atomic32_t *var, ethr_sint32_t incr)
{
atomic_add(&var->counter, incr);
}
#define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_INC 1
static ETHR_INLINE void
ethr_native_atomic32_inc(ethr_native_atomic32_t *var)
{
atomic_increment(&var->counter);
}
#define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_DEC 1
static ETHR_INLINE void
ethr_native_atomic32_dec(ethr_native_atomic32_t *var)
{
atomic_decrement(&var->counter);
}
#define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_ADD_RETURN 1
static ETHR_INLINE ethr_sint32_t
ethr_native_atomic32_add_return(ethr_native_atomic32_t *var, ethr_sint32_t incr)
{
return atomic_exchange_and_add(&var->counter, incr) + incr;
}
#define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_AND_RETOLD 1
static ETHR_INLINE ethr_sint32_t
ethr_native_atomic32_and_retold(ethr_native_atomic32_t *var, ethr_sint32_t mask)
{
return atomic_and_val(&var->counter, mask);
}
#define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_OR_RETOLD 1
static ETHR_INLINE ethr_sint32_t
ethr_native_atomic32_or_retold(ethr_native_atomic32_t *var, ethr_sint32_t mask)
{
return atomic_or_val(&var->counter, mask);
}
#define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_XCHG_ACQB 1
static ETHR_INLINE ethr_sint32_t
ethr_native_atomic32_xchg_acqb(ethr_native_atomic32_t *var, ethr_sint32_t val)
{
return atomic_exchange_acq(&var->counter, val);
}
#define ETHR_HAVE_ETHR_NATIVE_ATOMIC32_CMPXCHG_ACQB 1
static ETHR_INLINE ethr_sint32_t
ethr_native_atomic32_cmpxchg_acqb(ethr_native_atomic32_t *var,
ethr_sint32_t new,
ethr_sint32_t expected)
{
return atomic_compare_and_exchange_val_acq(&var->counter, new, expected);
}
#endif /* ETHR_TRY_INLINE_FUNCS */
#endif /* ETHREAD_TILE_ATOMIC_H */
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