/*

 * Copyright (c) 2003-2011 Hewlett-Packard Development Company, L.P.

 *

 * Permission is hereby granted, free of charge, to any person obtaining a copy

 * of this software and associated documentation files (the "Software"), to deal

 * in the Software without restriction, including without limitation the rights

 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

 * copies of the Software, and to permit persons to whom the Software is

 * furnished to do so, subject to the following conditions:

 *

 * The above copyright notice and this permission notice shall be included in

 * all copies or substantial portions of the Software.

 *

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE

 * SOFTWARE.

 */

/*

 * This file specifies Itanimum primitives for use with the HP compiler

 * under HP/UX.  We use intrinsics instead of the inline assembly code in the

 * gcc file.

 */

#include "../all_atomic_load_store.h"

#include "../all_acquire_release_volatile.h"

#include "../test_and_set_t_is_char.h"

#include <machine/sys/inline.h>

#ifdef __LP64__

# define AO_T_FASIZE _FASZ_D

# define AO_T_SIZE _SZ_D

#else

# define AO_T_FASIZE _FASZ_W

# define AO_T_SIZE _SZ_W

#endif

AO_INLINE void

AO_nop_full(void)

{

  _Asm_mf();

}

#define AO_HAVE_nop_full

#ifndef AO_PREFER_GENERALIZED

AO_INLINE AO_t

AO_fetch_and_add1_acquire (volatile AO_t *p)

{

  return _Asm_fetchadd(AO_T_FASIZE, _SEM_ACQ, p, 1,

                       _LDHINT_NONE, _DOWN_MEM_FENCE);

}

#define AO_HAVE_fetch_and_add1_acquire

AO_INLINE AO_t

AO_fetch_and_add1_release (volatile AO_t *p)

{

  return _Asm_fetchadd(AO_T_FASIZE, _SEM_REL, p, 1,

                       _LDHINT_NONE, _UP_MEM_FENCE);

}

#define AO_HAVE_fetch_and_add1_release

AO_INLINE AO_t

AO_fetch_and_sub1_acquire (volatile AO_t *p)

{

  return _Asm_fetchadd(AO_T_FASIZE, _SEM_ACQ, p, -1,

                       _LDHINT_NONE, _DOWN_MEM_FENCE);

}

#define AO_HAVE_fetch_and_sub1_acquire

AO_INLINE AO_t

AO_fetch_and_sub1_release (volatile AO_t *p)

{

  return _Asm_fetchadd(AO_T_FASIZE, _SEM_REL, p, -1,

                       _LDHINT_NONE, _UP_MEM_FENCE);

}

#define AO_HAVE_fetch_and_sub1_release

#endif /* !AO_PREFER_GENERALIZED */

AO_INLINE AO_t

AO_fetch_compare_and_swap_acquire(volatile AO_t *addr, AO_t old_val,

                                  AO_t new_val)

{

  _Asm_mov_to_ar(_AREG_CCV, old_val, _DOWN_MEM_FENCE);

  return _Asm_cmpxchg(AO_T_SIZE, _SEM_ACQ, addr,

                      new_val, _LDHINT_NONE, _DOWN_MEM_FENCE);

}

#define AO_HAVE_fetch_compare_and_swap_acquire

AO_INLINE AO_t

AO_fetch_compare_and_swap_release(volatile AO_t *addr, AO_t old_val,

                                  AO_t new_val)

{

  _Asm_mov_to_ar(_AREG_CCV, old_val, _UP_MEM_FENCE);

  return _Asm_cmpxchg(AO_T_SIZE, _SEM_REL, addr,

                      new_val, _LDHINT_NONE, _UP_MEM_FENCE);

}

#define AO_HAVE_fetch_compare_and_swap_release

AO_INLINE unsigned char

AO_char_fetch_compare_and_swap_acquire(volatile unsigned char *addr,

                                unsigned char old_val, unsigned char new_val)

{

  _Asm_mov_to_ar(_AREG_CCV, old_val, _DOWN_MEM_FENCE);

  return _Asm_cmpxchg(_SZ_B, _SEM_ACQ, addr,

                      new_val, _LDHINT_NONE, _DOWN_MEM_FENCE);

}

#define AO_HAVE_char_fetch_compare_and_swap_acquire

AO_INLINE unsigned char

AO_char_fetch_compare_and_swap_release(volatile unsigned char *addr,

                                unsigned char old_val, unsigned char new_val)

{

  _Asm_mov_to_ar(_AREG_CCV, old_val, _UP_MEM_FENCE);

  return _Asm_cmpxchg(_SZ_B, _SEM_REL, addr,

                      new_val, _LDHINT_NONE, _UP_MEM_FENCE);

}

#define AO_HAVE_char_fetch_compare_and_swap_release

AO_INLINE unsigned short

AO_short_fetch_compare_and_swap_acquire(volatile unsigned short *addr,

                                        unsigned short old_val,

                                        unsigned short new_val)

{

  _Asm_mov_to_ar(_AREG_CCV, old_val, _DOWN_MEM_FENCE);

  return _Asm_cmpxchg(_SZ_B, _SEM_ACQ, addr,

                      new_val, _LDHINT_NONE, _DOWN_MEM_FENCE);

}

#define AO_HAVE_short_fetch_compare_and_swap_acquire

AO_INLINE unsigned short

AO_short_fetch_compare_and_swap_release(volatile unsigned short *addr,

                                        unsigned short old_val,

                                        unsigned short new_val)

{

  _Asm_mov_to_ar(_AREG_CCV, old_val, _UP_MEM_FENCE);

  return _Asm_cmpxchg(_SZ_B, _SEM_REL, addr,

                      new_val, _LDHINT_NONE, _UP_MEM_FENCE);

}

#define AO_HAVE_short_fetch_compare_and_swap_release

#ifndef __LP64__

# define AO_T_IS_INT

#endif

#undef AO_T_FASIZE

#undef AO_T_SIZE