1 /*===---- mwaitxintrin.h - MONITORX/MWAITX intrinsics ----------------------===
2 *
3 * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 * See https://llvm.org/LICENSE.txt for license information.
5 * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 *
7 *===-----------------------------------------------------------------------===
8 */
9
10 #ifndef __X86INTRIN_H
11 #error "Never use <mwaitxintrin.h> directly; include <x86intrin.h> instead."
12 #endif
13
14 #ifndef __MWAITXINTRIN_H
15 #define __MWAITXINTRIN_H
16
17 /* Define the default attributes for the functions in this file. */
18 #define __DEFAULT_FN_ATTRS __attribute__((__always_inline__, __nodebug__, __target__("mwaitx")))
19
20 /// Establishes a linear address memory range to be monitored and puts
21 /// the processor in the monitor event pending state. Data stored in the
22 /// monitored address range causes the processor to exit the pending state.
23 ///
24 /// \headerfile <x86intrin.h>
25 ///
26 /// This intrinsic corresponds to the \c MONITORX instruction.
27 ///
28 /// \param __p
29 /// The memory range to be monitored. The size of the range is determined by
30 /// CPUID function 0000_0005h.
31 /// \param __extensions
32 /// Optional extensions for the monitoring state.
33 /// \param __hints
34 /// Optional hints for the monitoring state.
35 static __inline__ void __DEFAULT_FN_ATTRS
_mm_monitorx(void * __p,unsigned __extensions,unsigned __hints)36 _mm_monitorx(void * __p, unsigned __extensions, unsigned __hints)
37 {
38 __builtin_ia32_monitorx(__p, __extensions, __hints);
39 }
40
41 /// Used with the \c MONITORX instruction to wait while the processor is in
42 /// the monitor event pending state. Data stored in the monitored address
43 /// range, or an interrupt, causes the processor to exit the pending state.
44 ///
45 /// \headerfile <x86intrin.h>
46 ///
47 /// This intrinsic corresponds to the \c MWAITX instruction.
48 ///
49 /// \param __extensions
50 /// Optional extensions for the monitoring state, which can vary by
51 /// processor.
52 /// \param __hints
53 /// Optional hints for the monitoring state, which can vary by processor.
54 static __inline__ void __DEFAULT_FN_ATTRS
_mm_mwaitx(unsigned __extensions,unsigned __hints,unsigned __clock)55 _mm_mwaitx(unsigned __extensions, unsigned __hints, unsigned __clock)
56 {
57 __builtin_ia32_mwaitx(__extensions, __hints, __clock);
58 }
59
60 #undef __DEFAULT_FN_ATTRS
61
62 #endif /* __MWAITXINTRIN_H */
63