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/* XL compiler Hardware Transactional Memory (HTM) execution intrinsics.
Copyright (C) 2013-2015 Free Software Foundation, Inc.
Contributed by Peter Bergner <bergner@vnet.ibm.com>.
This file is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 3 of the License, or (at your option)
any later version.
This file 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 General Public License
for more details.
Under Section 7 of GPL version 3, you are granted additional
permissions described in the GCC Runtime Library Exception, version
3.1, as published by the Free Software Foundation.
You should have received a copy of the GNU General Public License and
a copy of the GCC Runtime Library Exception along with this program;
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
#ifndef __HTM__
# error "HTM instruction set not enabled"
#endif /* __HTM__ */
#ifndef _HTMXLINTRIN_H
#define _HTMXLINTRIN_H
#include <stdint.h>
#include <htmintrin.h>
#ifdef __cplusplus
extern "C" {
#endif
#define _TEXASR_PTR(TM_BUF) \
((texasr_t *)((TM_BUF)+0))
#define _TEXASRU_PTR(TM_BUF) \
((texasru_t *)((TM_BUF)+0))
#define _TEXASRL_PTR(TM_BUF) \
((texasrl_t *)((TM_BUF)+4))
#define _TFIAR_PTR(TM_BUF) \
((tfiar_t *)((TM_BUF)+8))
typedef char TM_buff_type[16];
/* Compatibility macro with s390. This macro can be used to determine
whether a transaction was successfully started from the __TM_begin()
and __TM_simple_begin() intrinsic functions below. */
#define _HTM_TBEGIN_STARTED 1
extern __inline long
__attribute__ ((__gnu_inline__, __always_inline__, __artificial__))
__TM_simple_begin (void)
{
if (__builtin_expect (__builtin_tbegin (0), 1))
return _HTM_TBEGIN_STARTED;
return 0;
}
extern __inline long
__attribute__ ((__gnu_inline__, __always_inline__, __artificial__))
__TM_begin (void* const TM_buff)
{
*_TEXASRL_PTR (TM_buff) = 0;
if (__builtin_expect (__builtin_tbegin (0), 1))
return _HTM_TBEGIN_STARTED;
#ifdef __powerpc64__
*_TEXASR_PTR (TM_buff) = __builtin_get_texasr ();
#else
*_TEXASRU_PTR (TM_buff) = __builtin_get_texasru ();
*_TEXASRL_PTR (TM_buff) = __builtin_get_texasr ();
#endif
*_TFIAR_PTR (TM_buff) = __builtin_get_tfiar ();
return 0;
}
extern __inline long
__attribute__ ((__gnu_inline__, __always_inline__, __artificial__))
__TM_end (void)
{
if (__builtin_expect (__builtin_tend (0), 1))
return 1;
return 0;
}
extern __inline void
__attribute__ ((__gnu_inline__, __always_inline__, __artificial__))
__TM_abort (void)
{
__builtin_tabort (0);
}
extern __inline void
__attribute__ ((__gnu_inline__, __always_inline__, __artificial__))
__TM_named_abort (unsigned char const code)
{
__builtin_tabort (code);
}
extern __inline void
__attribute__ ((__gnu_inline__, __always_inline__, __artificial__))
__TM_resume (void)
{
__builtin_tresume ();
}
extern __inline void
__attribute__ ((__gnu_inline__, __always_inline__, __artificial__))
__TM_suspend (void)
{
__builtin_tsuspend ();
}
extern __inline long
__attribute__ ((__gnu_inline__, __always_inline__, __artificial__))
__TM_is_user_abort (void* const TM_buff)
{
texasru_t texasru = *_TEXASRU_PTR (TM_buff);
return _TEXASRU_ABORT (texasru);
}
extern __inline long
__attribute__ ((__gnu_inline__, __always_inline__, __artificial__))
__TM_is_named_user_abort (void* const TM_buff, unsigned char *code)
{
texasru_t texasru = *_TEXASRU_PTR (TM_buff);
*code = _TEXASRU_FAILURE_CODE (texasru);
return _TEXASRU_ABORT (texasru);
}
extern __inline long
__attribute__ ((__gnu_inline__, __always_inline__, __artificial__))
__TM_is_illegal (void* const TM_buff)
{
texasru_t texasru = *_TEXASRU_PTR (TM_buff);
return _TEXASRU_DISALLOWED (texasru);
}
extern __inline long
__attribute__ ((__gnu_inline__, __always_inline__, __artificial__))
__TM_is_footprint_exceeded (void* const TM_buff)
{
texasru_t texasru = *_TEXASRU_PTR (TM_buff);
return _TEXASRU_FOOTPRINT_OVERFLOW (texasru);
}
extern __inline long
__attribute__ ((__gnu_inline__, __always_inline__, __artificial__))
__TM_nesting_depth (void* const TM_buff)
{
texasrl_t texasrl;
if (_HTM_STATE (__builtin_ttest ()) == _HTM_NONTRANSACTIONAL)
{
texasrl = *_TEXASRL_PTR (TM_buff);
if (!_TEXASR_FAILURE_SUMMARY (texasrl))
texasrl = 0;
}
else
texasrl = (texasrl_t) __builtin_get_texasr ();
return _TEXASR_TRANSACTION_LEVEL (texasrl);
}
extern __inline long
__attribute__ ((__gnu_inline__, __always_inline__, __artificial__))
__TM_is_nested_too_deep(void* const TM_buff)
{
texasru_t texasru = *_TEXASRU_PTR (TM_buff);
return _TEXASRU_NESTING_OVERFLOW (texasru);
}
extern __inline long
__attribute__ ((__gnu_inline__, __always_inline__, __artificial__))
__TM_is_conflict(void* const TM_buff)
{
texasru_t texasru = *_TEXASRU_PTR (TM_buff);
/* Return TEXASR bits 11 (Self-Induced Conflict) through
14 (Translation Invalidation Conflict). */
return (_TEXASRU_EXTRACT_BITS (texasru, 14, 4)) ? 1 : 0;
}
extern __inline long
__attribute__ ((__gnu_inline__, __always_inline__, __artificial__))
__TM_is_failure_persistent(void* const TM_buff)
{
texasru_t texasru = *_TEXASRU_PTR (TM_buff);
return _TEXASRU_FAILURE_PERSISTENT (texasru);
}
extern __inline long
__attribute__ ((__gnu_inline__, __always_inline__, __artificial__))
__TM_failure_address(void* const TM_buff)
{
return *_TFIAR_PTR (TM_buff);
}
extern __inline long long
__attribute__ ((__gnu_inline__, __always_inline__, __artificial__))
__TM_failure_code(void* const TM_buff)
{
return *_TEXASR_PTR (TM_buff);
}
#ifdef __cplusplus
}
#endif
#endif /* _HTMXLINTRIN_H */
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