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150
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1 /*===---- mwaitxintrin.h - MONITORX/MWAITX intrinsics ----------------------===
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2 *
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3 * Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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4 * See https://llvm.org/LICENSE.txt for license information.
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5 * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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6 *
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7 *===-----------------------------------------------------------------------===
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8 */
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9
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10 #ifndef __X86INTRIN_H
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11 #error "Never use <mwaitxintrin.h> directly; include <x86intrin.h> instead."
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12 #endif
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13
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14 #ifndef __MWAITXINTRIN_H
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15 #define __MWAITXINTRIN_H
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16
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17 /* Define the default attributes for the functions in this file. */
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18 #define __DEFAULT_FN_ATTRS __attribute__((__always_inline__, __nodebug__, __target__("mwaitx")))
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252
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19
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20 /// Establishes a linear address memory range to be monitored and puts
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21 /// the processor in the monitor event pending state. Data stored in the
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22 /// monitored address range causes the processor to exit the pending state.
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23 ///
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24 /// \headerfile <x86intrin.h>
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25 ///
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26 /// This intrinsic corresponds to the \c MONITORX instruction.
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27 ///
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28 /// \param __p
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29 /// The memory range to be monitored. The size of the range is determined by
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30 /// CPUID function 0000_0005h.
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31 /// \param __extensions
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32 /// Optional extensions for the monitoring state.
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33 /// \param __hints
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34 /// Optional hints for the monitoring state.
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150
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35 static __inline__ void __DEFAULT_FN_ATTRS
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36 _mm_monitorx(void * __p, unsigned __extensions, unsigned __hints)
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37 {
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38 __builtin_ia32_monitorx(__p, __extensions, __hints);
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39 }
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40
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252
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41 /// Used with the \c MONITORX instruction to wait while the processor is in
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42 /// the monitor event pending state. Data stored in the monitored address
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43 /// range, or an interrupt, causes the processor to exit the pending state.
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44 ///
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45 /// \headerfile <x86intrin.h>
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46 ///
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47 /// This intrinsic corresponds to the \c MWAITX instruction.
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48 ///
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49 /// \param __extensions
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50 /// Optional extensions for the monitoring state, which can vary by
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51 /// processor.
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52 /// \param __hints
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53 /// Optional hints for the monitoring state, which can vary by processor.
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150
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54 static __inline__ void __DEFAULT_FN_ATTRS
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55 _mm_mwaitx(unsigned __extensions, unsigned __hints, unsigned __clock)
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56 {
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57 __builtin_ia32_mwaitx(__extensions, __hints, __clock);
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58 }
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59
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60 #undef __DEFAULT_FN_ATTRS
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61
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62 #endif /* __MWAITXINTRIN_H */
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