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1 | /*===---- rdpruintrin.h - RDPRU 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 | #if !defined __X86INTRIN_H |
11 | #error "Never use <rdpruintrin.h> directly; include <x86intrin.h> instead." |
12 | #endif |
13 | |
14 | #ifndef __RDPRUINTRIN_H |
15 | #define __RDPRUINTRIN_H |
16 | |
17 | /* Define the default attributes for the functions in this file. */ |
18 | #define __DEFAULT_FN_ATTRS \ |
19 | __attribute__((__always_inline__, __nodebug__, __target__("rdpru"))) |
20 | |
21 | |
22 | /// Reads the content of a processor register. |
23 | /// |
24 | /// \headerfile <x86intrin.h> |
25 | /// |
26 | /// This intrinsic corresponds to the <c> RDPRU </c> instruction. |
27 | /// |
28 | /// \param reg_id |
29 | /// A processor register identifier. |
30 | static __inline__ unsigned long long __DEFAULT_FN_ATTRS |
31 | __rdpru (int reg_id) |
32 | { |
33 | return __builtin_ia32_rdpru(reg_id); |
34 | } |
35 | |
36 | #define __RDPRU_MPERF 0 |
37 | #define __RDPRU_APERF 1 |
38 | |
39 | /// Reads the content of processor register MPERF. |
40 | /// |
41 | /// \headerfile <x86intrin.h> |
42 | /// |
43 | /// This intrinsic generates instruction <c> RDPRU </c> to read the value of |
44 | /// register MPERF. |
45 | #define __mperf() __builtin_ia32_rdpru(__RDPRU_MPERF) |
46 | |
47 | /// Reads the content of processor register APERF. |
48 | /// |
49 | /// \headerfile <x86intrin.h> |
50 | /// |
51 | /// This intrinsic generates instruction <c> RDPRU </c> to read the value of |
52 | /// register APERF. |
53 | #define __aperf() __builtin_ia32_rdpru(__RDPRU_APERF) |
54 | |
55 | #undef __DEFAULT_FN_ATTRS |
56 | |
57 | #endif /* __RDPRUINTRIN_H */ |
58 |
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