Details | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
---|---|---|---|
14 | pmbaty | 1 | /*===---- lwpintrin.h - LWP 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 <lwpintrin.h> directly; include <x86intrin.h> instead." |
||
12 | #endif |
||
13 | |||
14 | #ifndef __LWPINTRIN_H |
||
15 | #define __LWPINTRIN_H |
||
16 | |||
17 | /* Define the default attributes for the functions in this file. */ |
||
18 | #define __DEFAULT_FN_ATTRS __attribute__((__always_inline__, __nodebug__, __target__("lwp"))) |
||
19 | |||
20 | /// Parses the LWPCB at the specified address and enables |
||
21 | /// profiling if valid. |
||
22 | /// |
||
23 | /// \headerfile <x86intrin.h> |
||
24 | /// |
||
25 | /// This intrinsic corresponds to the <c> LLWPCB </c> instruction. |
||
26 | /// |
||
27 | /// \param __addr |
||
28 | /// Address to the new Lightweight Profiling Control Block (LWPCB). If the |
||
29 | /// LWPCB is valid, writes the address into the LWP_CBADDR MSR and enables |
||
30 | /// Lightweight Profiling. |
||
31 | static __inline__ void __DEFAULT_FN_ATTRS |
||
32 | __llwpcb (void *__addr) |
||
33 | { |
||
34 | __builtin_ia32_llwpcb(__addr); |
||
35 | } |
||
36 | |||
37 | /// Flushes the LWP state to memory and returns the address of the LWPCB. |
||
38 | /// |
||
39 | /// \headerfile <x86intrin.h> |
||
40 | /// |
||
41 | /// This intrinsic corresponds to the <c> SLWPCB </c> instruction. |
||
42 | /// |
||
43 | /// \return |
||
44 | /// Address to the current Lightweight Profiling Control Block (LWPCB). |
||
45 | /// If LWP is not currently enabled, returns NULL. |
||
46 | static __inline__ void* __DEFAULT_FN_ATTRS |
||
47 | __slwpcb (void) |
||
48 | { |
||
49 | return __builtin_ia32_slwpcb(); |
||
50 | } |
||
51 | |||
52 | /// Inserts programmed event record into the LWP event ring buffer |
||
53 | /// and advances the ring buffer pointer. |
||
54 | /// |
||
55 | /// \headerfile <x86intrin.h> |
||
56 | /// |
||
57 | /// This intrinsic corresponds to the <c> LWPINS </c> instruction. |
||
58 | /// |
||
59 | /// \param DATA2 |
||
60 | /// A 32-bit value is zero-extended and inserted into the 64-bit Data2 field. |
||
61 | /// \param DATA1 |
||
62 | /// A 32-bit value is inserted into the 32-bit Data1 field. |
||
63 | /// \param FLAGS |
||
64 | /// A 32-bit immediate value is inserted into the 32-bit Flags field. |
||
65 | /// \returns If the ring buffer is full and LWP is running in Synchronized Mode, |
||
66 | /// the event record overwrites the last record in the buffer, the MissedEvents |
||
67 | /// counter in the LWPCB is incremented, the head pointer is not advanced, and |
||
68 | /// 1 is returned. Otherwise 0 is returned. |
||
69 | #define __lwpins32(DATA2, DATA1, FLAGS) \ |
||
70 | (__builtin_ia32_lwpins32((unsigned int) (DATA2), (unsigned int) (DATA1), \ |
||
71 | (unsigned int) (FLAGS))) |
||
72 | |||
73 | /// Decrements the LWP programmed value sample event counter. If the result is |
||
74 | /// negative, inserts an event record into the LWP event ring buffer in memory |
||
75 | /// and advances the ring buffer pointer. |
||
76 | /// |
||
77 | /// \headerfile <x86intrin.h> |
||
78 | /// |
||
79 | /// This intrinsic corresponds to the <c> LWPVAL </c> instruction. |
||
80 | /// |
||
81 | /// \param DATA2 |
||
82 | /// A 32-bit value is zero-extended and inserted into the 64-bit Data2 field. |
||
83 | /// \param DATA1 |
||
84 | /// A 32-bit value is inserted into the 32-bit Data1 field. |
||
85 | /// \param FLAGS |
||
86 | /// A 32-bit immediate value is inserted into the 32-bit Flags field. |
||
87 | #define __lwpval32(DATA2, DATA1, FLAGS) \ |
||
88 | (__builtin_ia32_lwpval32((unsigned int) (DATA2), (unsigned int) (DATA1), \ |
||
89 | (unsigned int) (FLAGS))) |
||
90 | |||
91 | #ifdef __x86_64__ |
||
92 | |||
93 | /// Inserts programmed event record into the LWP event ring buffer |
||
94 | /// and advances the ring buffer pointer. |
||
95 | /// |
||
96 | /// \headerfile <x86intrin.h> |
||
97 | /// |
||
98 | /// This intrinsic corresponds to the <c> LWPINS </c> instruction. |
||
99 | /// |
||
100 | /// \param DATA2 |
||
101 | /// A 64-bit value is inserted into the 64-bit Data2 field. |
||
102 | /// \param DATA1 |
||
103 | /// A 32-bit value is inserted into the 32-bit Data1 field. |
||
104 | /// \param FLAGS |
||
105 | /// A 32-bit immediate value is inserted into the 32-bit Flags field. |
||
106 | /// \returns If the ring buffer is full and LWP is running in Synchronized Mode, |
||
107 | /// the event record overwrites the last record in the buffer, the MissedEvents |
||
108 | /// counter in the LWPCB is incremented, the head pointer is not advanced, and |
||
109 | /// 1 is returned. Otherwise 0 is returned. |
||
110 | #define __lwpins64(DATA2, DATA1, FLAGS) \ |
||
111 | (__builtin_ia32_lwpins64((unsigned long long) (DATA2), (unsigned int) (DATA1), \ |
||
112 | (unsigned int) (FLAGS))) |
||
113 | |||
114 | /// Decrements the LWP programmed value sample event counter. If the result is |
||
115 | /// negative, inserts an event record into the LWP event ring buffer in memory |
||
116 | /// and advances the ring buffer pointer. |
||
117 | /// |
||
118 | /// \headerfile <x86intrin.h> |
||
119 | /// |
||
120 | /// This intrinsic corresponds to the <c> LWPVAL </c> instruction. |
||
121 | /// |
||
122 | /// \param DATA2 |
||
123 | /// A 64-bit value is and inserted into the 64-bit Data2 field. |
||
124 | /// \param DATA1 |
||
125 | /// A 32-bit value is inserted into the 32-bit Data1 field. |
||
126 | /// \param FLAGS |
||
127 | /// A 32-bit immediate value is inserted into the 32-bit Flags field. |
||
128 | #define __lwpval64(DATA2, DATA1, FLAGS) \ |
||
129 | (__builtin_ia32_lwpval64((unsigned long long) (DATA2), (unsigned int) (DATA1), \ |
||
130 | (unsigned int) (FLAGS))) |
||
131 | |||
132 | #endif |
||
133 | |||
134 | #undef __DEFAULT_FN_ATTRS |
||
135 | |||
136 | #endif /* __LWPINTRIN_H */ |