| 1 | /* Copyright (C) 2012-2015 Free Software Foundation, Inc.
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| 2 |
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| 3 | This file is part of GCC.
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| 4 |
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| 5 | GCC is free software; you can redistribute it and/or modify
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| 6 | it under the terms of the GNU General Public License as published by
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| 7 | the Free Software Foundation; either version 3, or (at your option)
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| 8 | any later version.
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| 9 |
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| 10 | GCC is distributed in the hope that it will be useful,
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| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 13 | GNU General Public License for more details.
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| 14 |
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| 15 | Under Section 7 of GPL version 3, you are granted additional
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| 16 | permissions described in the GCC Runtime Library Exception, version
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| 17 | 3.1, as published by the Free Software Foundation.
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| 18 |
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| 19 | You should have received a copy of the GNU General Public License and
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| 20 | a copy of the GCC Runtime Library Exception along with this program;
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| 21 | see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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| 22 | <http://www.gnu.org/licenses/>. */
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| 23 |
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| 24 | #ifndef _IMMINTRIN_H_INCLUDED
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| 25 | # error "Never use <rtmintrin.h> directly; include <immintrin.h> instead."
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| 26 | #endif
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| 27 |
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| 28 | #ifndef _RTMINTRIN_H_INCLUDED
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| 29 | #define _RTMINTRIN_H_INCLUDED
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| 30 |
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| 31 | #ifndef __RTM__
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| 32 | #pragma GCC push_options
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| 33 | #pragma GCC target("rtm")
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| 34 | #define __DISABLE_RTM__
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| 35 | #endif /* __RTM__ */
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| 36 |
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| 37 | #define _XBEGIN_STARTED (~0u)
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| 38 | #define _XABORT_EXPLICIT (1 << 0)
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| 39 | #define _XABORT_RETRY (1 << 1)
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| 40 | #define _XABORT_CONFLICT (1 << 2)
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| 41 | #define _XABORT_CAPACITY (1 << 3)
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| 42 | #define _XABORT_DEBUG (1 << 4)
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| 43 | #define _XABORT_NESTED (1 << 5)
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| 44 | #define _XABORT_CODE(x) (((x) >> 24) & 0xFF)
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| 45 |
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| 46 | /* Start an RTM code region. Return _XBEGIN_STARTED on success and the
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| 47 | abort condition otherwise. */
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| 48 | extern __inline unsigned int
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| 49 | __attribute__((__gnu_inline__, __always_inline__, __artificial__))
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| 50 | _xbegin (void)
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| 51 | {
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| 52 | return __builtin_ia32_xbegin ();
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| 53 | }
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| 54 |
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| 55 | /* Specify the end of an RTM code region. If it corresponds to the
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| 56 | outermost transaction, then attempts the transaction commit. If the
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| 57 | commit fails, then control is transferred to the outermost transaction
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| 58 | fallback handler. */
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| 59 | extern __inline void
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| 60 | __attribute__((__gnu_inline__, __always_inline__, __artificial__))
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| 61 | _xend (void)
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| 62 | {
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| 63 | __builtin_ia32_xend ();
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| 64 | }
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| 65 |
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| 66 | /* Force an RTM abort condition. The control is transferred to the
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| 67 | outermost transaction fallback handler with the abort condition IMM. */
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| 68 | #ifdef __OPTIMIZE__
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| 69 | extern __inline void
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| 70 | __attribute__((__gnu_inline__, __always_inline__, __artificial__))
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| 71 | _xabort (const unsigned int imm)
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| 72 | {
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| 73 | __builtin_ia32_xabort (imm);
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| 74 | }
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| 75 | #else
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| 76 | #define _xabort(N) __builtin_ia32_xabort (N)
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| 77 | #endif /* __OPTIMIZE__ */
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| 78 |
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| 79 | #ifdef __DISABLE_RTM__
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| 80 | #undef __DISABLE_RTM__
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| 81 | #pragma GCC pop_options
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| 82 | #endif /* __DISABLE_RTM__ */
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| 83 |
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| 84 | #endif /* _RTMINTRIN_H_INCLUDED */
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