1*38fd1498Szrj /* Copyright (C) 2012-2018 Free Software Foundation, Inc.
2*38fd1498Szrj
3*38fd1498Szrj This file is part of GCC.
4*38fd1498Szrj
5*38fd1498Szrj GCC is free software; you can redistribute it and/or modify
6*38fd1498Szrj it under the terms of the GNU General Public License as published by
7*38fd1498Szrj the Free Software Foundation; either version 3, or (at your option)
8*38fd1498Szrj any later version.
9*38fd1498Szrj
10*38fd1498Szrj GCC is distributed in the hope that it will be useful,
11*38fd1498Szrj but WITHOUT ANY WARRANTY; without even the implied warranty of
12*38fd1498Szrj MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13*38fd1498Szrj GNU General Public License for more details.
14*38fd1498Szrj
15*38fd1498Szrj Under Section 7 of GPL version 3, you are granted additional
16*38fd1498Szrj permissions described in the GCC Runtime Library Exception, version
17*38fd1498Szrj 3.1, as published by the Free Software Foundation.
18*38fd1498Szrj
19*38fd1498Szrj You should have received a copy of the GNU General Public License and
20*38fd1498Szrj a copy of the GCC Runtime Library Exception along with this program;
21*38fd1498Szrj see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
22*38fd1498Szrj <http://www.gnu.org/licenses/>. */
23*38fd1498Szrj
24*38fd1498Szrj #ifndef _IMMINTRIN_H_INCLUDED
25*38fd1498Szrj # error "Never use <rtmintrin.h> directly; include <immintrin.h> instead."
26*38fd1498Szrj #endif
27*38fd1498Szrj
28*38fd1498Szrj #ifndef _RTMINTRIN_H_INCLUDED
29*38fd1498Szrj #define _RTMINTRIN_H_INCLUDED
30*38fd1498Szrj
31*38fd1498Szrj #ifndef __RTM__
32*38fd1498Szrj #pragma GCC push_options
33*38fd1498Szrj #pragma GCC target("rtm")
34*38fd1498Szrj #define __DISABLE_RTM__
35*38fd1498Szrj #endif /* __RTM__ */
36*38fd1498Szrj
37*38fd1498Szrj #define _XBEGIN_STARTED (~0u)
38*38fd1498Szrj #define _XABORT_EXPLICIT (1 << 0)
39*38fd1498Szrj #define _XABORT_RETRY (1 << 1)
40*38fd1498Szrj #define _XABORT_CONFLICT (1 << 2)
41*38fd1498Szrj #define _XABORT_CAPACITY (1 << 3)
42*38fd1498Szrj #define _XABORT_DEBUG (1 << 4)
43*38fd1498Szrj #define _XABORT_NESTED (1 << 5)
44*38fd1498Szrj #define _XABORT_CODE(x) (((x) >> 24) & 0xFF)
45*38fd1498Szrj
46*38fd1498Szrj /* Start an RTM code region. Return _XBEGIN_STARTED on success and the
47*38fd1498Szrj abort condition otherwise. */
48*38fd1498Szrj extern __inline unsigned int
49*38fd1498Szrj __attribute__((__gnu_inline__, __always_inline__, __artificial__))
_xbegin(void)50*38fd1498Szrj _xbegin (void)
51*38fd1498Szrj {
52*38fd1498Szrj return __builtin_ia32_xbegin ();
53*38fd1498Szrj }
54*38fd1498Szrj
55*38fd1498Szrj /* Specify the end of an RTM code region. If it corresponds to the
56*38fd1498Szrj outermost transaction, then attempts the transaction commit. If the
57*38fd1498Szrj commit fails, then control is transferred to the outermost transaction
58*38fd1498Szrj fallback handler. */
59*38fd1498Szrj extern __inline void
60*38fd1498Szrj __attribute__((__gnu_inline__, __always_inline__, __artificial__))
_xend(void)61*38fd1498Szrj _xend (void)
62*38fd1498Szrj {
63*38fd1498Szrj __builtin_ia32_xend ();
64*38fd1498Szrj }
65*38fd1498Szrj
66*38fd1498Szrj /* Force an RTM abort condition. The control is transferred to the
67*38fd1498Szrj outermost transaction fallback handler with the abort condition IMM. */
68*38fd1498Szrj #ifdef __OPTIMIZE__
69*38fd1498Szrj extern __inline void
70*38fd1498Szrj __attribute__((__gnu_inline__, __always_inline__, __artificial__))
_xabort(const unsigned int __imm)71*38fd1498Szrj _xabort (const unsigned int __imm)
72*38fd1498Szrj {
73*38fd1498Szrj __builtin_ia32_xabort (__imm);
74*38fd1498Szrj }
75*38fd1498Szrj #else
76*38fd1498Szrj #define _xabort(N) __builtin_ia32_xabort (N)
77*38fd1498Szrj #endif /* __OPTIMIZE__ */
78*38fd1498Szrj
79*38fd1498Szrj #ifdef __DISABLE_RTM__
80*38fd1498Szrj #undef __DISABLE_RTM__
81*38fd1498Szrj #pragma GCC pop_options
82*38fd1498Szrj #endif /* __DISABLE_RTM__ */
83*38fd1498Szrj
84*38fd1498Szrj #endif /* _RTMINTRIN_H_INCLUDED */
85