58 lines
1.6 KiB
C
Vendored
58 lines
1.6 KiB
C
Vendored
/*===---- rdpruintrin.h - RDPRU intrinsics ---------------------------------===
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*
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* Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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* See https://llvm.org/LICENSE.txt for license information.
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* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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*
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*===-----------------------------------------------------------------------===
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*/
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#if !defined __X86INTRIN_H
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#error "Never use <rdpruintrin.h> directly; include <x86intrin.h> instead."
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#endif
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#ifndef __RDPRUINTRIN_H
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#define __RDPRUINTRIN_H
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/* Define the default attributes for the functions in this file. */
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#define __DEFAULT_FN_ATTRS \
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__attribute__((__always_inline__, __nodebug__, __target__("rdpru")))
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/// Reads the content of a processor register.
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///
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/// \headerfile <x86intrin.h>
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///
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/// This intrinsic corresponds to the <c> RDPRU </c> instruction.
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///
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/// \param reg_id
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/// A processor register identifier.
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static __inline__ unsigned long long __DEFAULT_FN_ATTRS
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__rdpru (int reg_id)
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{
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return __builtin_ia32_rdpru(reg_id);
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}
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#define __RDPRU_MPERF 0
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#define __RDPRU_APERF 1
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/// Reads the content of processor register MPERF.
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///
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/// \headerfile <x86intrin.h>
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///
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/// This intrinsic generates instruction <c> RDPRU </c> to read the value of
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/// register MPERF.
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#define __mperf() __builtin_ia32_rdpru(__RDPRU_MPERF)
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/// Reads the content of processor register APERF.
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///
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/// \headerfile <x86intrin.h>
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///
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/// This intrinsic generates instruction <c> RDPRU </c> to read the value of
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/// register APERF.
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#define __aperf() __builtin_ia32_rdpru(__RDPRU_APERF)
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#undef __DEFAULT_FN_ATTRS
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#endif /* __RDPRUINTRIN_H */
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