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0258b6e4 | 1 | /* XL compiler Hardware Transactional Memory (HTM) execution intrinsics. |
a945c346 | 2 | Copyright (C) 2013-2024 Free Software Foundation, Inc. |
0258b6e4 PB |
3 | Contributed by Peter Bergner <bergner@vnet.ibm.com>. |
4 | ||
5 | This file is free software; you can redistribute it and/or modify it under | |
6 | the terms of the GNU General Public License as published by the Free | |
7 | Software Foundation; either version 3 of the License, or (at your option) | |
8 | any later version. | |
9 | ||
10 | This file is distributed in the hope that it will be useful, but WITHOUT | |
11 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
12 | FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
13 | for more details. | |
14 | ||
15 | Under Section 7 of GPL version 3, you are granted additional | |
16 | permissions described in the GCC Runtime Library Exception, version | |
17 | 3.1, as published by the Free Software Foundation. | |
18 | ||
19 | You should have received a copy of the GNU General Public License and | |
20 | a copy of the GCC Runtime Library Exception along with this program; | |
21 | see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
22 | <http://www.gnu.org/licenses/>. */ | |
23 | ||
24 | #ifndef __HTM__ | |
25 | # error "HTM instruction set not enabled" | |
26 | #endif /* __HTM__ */ | |
27 | ||
28 | #ifndef _HTMXLINTRIN_H | |
29 | #define _HTMXLINTRIN_H | |
30 | ||
31 | #include <stdint.h> | |
32 | #include <htmintrin.h> | |
33 | ||
34 | #ifdef __cplusplus | |
35 | extern "C" { | |
36 | #endif | |
37 | ||
38 | #define _TEXASR_PTR(TM_BUF) \ | |
39 | ((texasr_t *)((TM_BUF)+0)) | |
40 | #define _TEXASRU_PTR(TM_BUF) \ | |
41 | ((texasru_t *)((TM_BUF)+0)) | |
42 | #define _TEXASRL_PTR(TM_BUF) \ | |
43 | ((texasrl_t *)((TM_BUF)+4)) | |
44 | #define _TFIAR_PTR(TM_BUF) \ | |
45 | ((tfiar_t *)((TM_BUF)+8)) | |
46 | ||
47 | typedef char TM_buff_type[16]; | |
48 | ||
d8c55b91 PB |
49 | /* Compatibility macro with s390. This macro can be used to determine |
50 | whether a transaction was successfully started from the __TM_begin() | |
51 | and __TM_simple_begin() intrinsic functions below. */ | |
52 | #define _HTM_TBEGIN_STARTED 1 | |
53 | ||
0258b6e4 PB |
54 | extern __inline long |
55 | __attribute__ ((__gnu_inline__, __always_inline__, __artificial__)) | |
56 | __TM_simple_begin (void) | |
57 | { | |
58 | if (__builtin_expect (__builtin_tbegin (0), 1)) | |
d8c55b91 | 59 | return _HTM_TBEGIN_STARTED; |
0258b6e4 PB |
60 | return 0; |
61 | } | |
62 | ||
63 | extern __inline long | |
64 | __attribute__ ((__gnu_inline__, __always_inline__, __artificial__)) | |
65 | __TM_begin (void* const TM_buff) | |
66 | { | |
67 | *_TEXASRL_PTR (TM_buff) = 0; | |
68 | if (__builtin_expect (__builtin_tbegin (0), 1)) | |
d8c55b91 | 69 | return _HTM_TBEGIN_STARTED; |
0258b6e4 PB |
70 | #ifdef __powerpc64__ |
71 | *_TEXASR_PTR (TM_buff) = __builtin_get_texasr (); | |
72 | #else | |
73 | *_TEXASRU_PTR (TM_buff) = __builtin_get_texasru (); | |
74 | *_TEXASRL_PTR (TM_buff) = __builtin_get_texasr (); | |
75 | #endif | |
76 | *_TFIAR_PTR (TM_buff) = __builtin_get_tfiar (); | |
77 | return 0; | |
78 | } | |
79 | ||
80 | extern __inline long | |
81 | __attribute__ ((__gnu_inline__, __always_inline__, __artificial__)) | |
82 | __TM_end (void) | |
83 | { | |
01f61a78 PB |
84 | unsigned char status = _HTM_STATE (__builtin_tend (0)); |
85 | if (__builtin_expect (status, _HTM_TRANSACTIONAL)) | |
0258b6e4 PB |
86 | return 1; |
87 | return 0; | |
88 | } | |
89 | ||
90 | extern __inline void | |
91 | __attribute__ ((__gnu_inline__, __always_inline__, __artificial__)) | |
92 | __TM_abort (void) | |
93 | { | |
94 | __builtin_tabort (0); | |
95 | } | |
96 | ||
97 | extern __inline void | |
98 | __attribute__ ((__gnu_inline__, __always_inline__, __artificial__)) | |
99 | __TM_named_abort (unsigned char const code) | |
100 | { | |
101 | __builtin_tabort (code); | |
102 | } | |
103 | ||
104 | extern __inline void | |
105 | __attribute__ ((__gnu_inline__, __always_inline__, __artificial__)) | |
106 | __TM_resume (void) | |
107 | { | |
108 | __builtin_tresume (); | |
109 | } | |
110 | ||
111 | extern __inline void | |
112 | __attribute__ ((__gnu_inline__, __always_inline__, __artificial__)) | |
113 | __TM_suspend (void) | |
114 | { | |
115 | __builtin_tsuspend (); | |
116 | } | |
117 | ||
118 | extern __inline long | |
119 | __attribute__ ((__gnu_inline__, __always_inline__, __artificial__)) | |
120 | __TM_is_user_abort (void* const TM_buff) | |
121 | { | |
122 | texasru_t texasru = *_TEXASRU_PTR (TM_buff); | |
123 | return _TEXASRU_ABORT (texasru); | |
124 | } | |
125 | ||
126 | extern __inline long | |
127 | __attribute__ ((__gnu_inline__, __always_inline__, __artificial__)) | |
128 | __TM_is_named_user_abort (void* const TM_buff, unsigned char *code) | |
129 | { | |
130 | texasru_t texasru = *_TEXASRU_PTR (TM_buff); | |
131 | ||
132 | *code = _TEXASRU_FAILURE_CODE (texasru); | |
133 | return _TEXASRU_ABORT (texasru); | |
134 | } | |
135 | ||
136 | extern __inline long | |
137 | __attribute__ ((__gnu_inline__, __always_inline__, __artificial__)) | |
138 | __TM_is_illegal (void* const TM_buff) | |
139 | { | |
140 | texasru_t texasru = *_TEXASRU_PTR (TM_buff); | |
141 | return _TEXASRU_DISALLOWED (texasru); | |
142 | } | |
143 | ||
144 | extern __inline long | |
145 | __attribute__ ((__gnu_inline__, __always_inline__, __artificial__)) | |
146 | __TM_is_footprint_exceeded (void* const TM_buff) | |
147 | { | |
148 | texasru_t texasru = *_TEXASRU_PTR (TM_buff); | |
149 | return _TEXASRU_FOOTPRINT_OVERFLOW (texasru); | |
150 | } | |
151 | ||
152 | extern __inline long | |
153 | __attribute__ ((__gnu_inline__, __always_inline__, __artificial__)) | |
154 | __TM_nesting_depth (void* const TM_buff) | |
155 | { | |
156 | texasrl_t texasrl; | |
157 | ||
158 | if (_HTM_STATE (__builtin_ttest ()) == _HTM_NONTRANSACTIONAL) | |
159 | { | |
160 | texasrl = *_TEXASRL_PTR (TM_buff); | |
161 | if (!_TEXASR_FAILURE_SUMMARY (texasrl)) | |
162 | texasrl = 0; | |
163 | } | |
164 | else | |
165 | texasrl = (texasrl_t) __builtin_get_texasr (); | |
166 | ||
167 | return _TEXASR_TRANSACTION_LEVEL (texasrl); | |
168 | } | |
169 | ||
170 | extern __inline long | |
171 | __attribute__ ((__gnu_inline__, __always_inline__, __artificial__)) | |
172 | __TM_is_nested_too_deep(void* const TM_buff) | |
173 | { | |
174 | texasru_t texasru = *_TEXASRU_PTR (TM_buff); | |
175 | return _TEXASRU_NESTING_OVERFLOW (texasru); | |
176 | } | |
177 | ||
178 | extern __inline long | |
179 | __attribute__ ((__gnu_inline__, __always_inline__, __artificial__)) | |
180 | __TM_is_conflict(void* const TM_buff) | |
181 | { | |
182 | texasru_t texasru = *_TEXASRU_PTR (TM_buff); | |
183 | /* Return TEXASR bits 11 (Self-Induced Conflict) through | |
184 | 14 (Translation Invalidation Conflict). */ | |
185 | return (_TEXASRU_EXTRACT_BITS (texasru, 14, 4)) ? 1 : 0; | |
186 | } | |
187 | ||
188 | extern __inline long | |
189 | __attribute__ ((__gnu_inline__, __always_inline__, __artificial__)) | |
190 | __TM_is_failure_persistent(void* const TM_buff) | |
191 | { | |
192 | texasru_t texasru = *_TEXASRU_PTR (TM_buff); | |
193 | return _TEXASRU_FAILURE_PERSISTENT (texasru); | |
194 | } | |
195 | ||
196 | extern __inline long | |
197 | __attribute__ ((__gnu_inline__, __always_inline__, __artificial__)) | |
198 | __TM_failure_address(void* const TM_buff) | |
199 | { | |
200 | return *_TFIAR_PTR (TM_buff); | |
201 | } | |
202 | ||
203 | extern __inline long long | |
204 | __attribute__ ((__gnu_inline__, __always_inline__, __artificial__)) | |
205 | __TM_failure_code(void* const TM_buff) | |
206 | { | |
207 | return *_TEXASR_PTR (TM_buff); | |
208 | } | |
209 | ||
210 | #ifdef __cplusplus | |
211 | } | |
212 | #endif | |
213 | ||
214 | #endif /* _HTMXLINTRIN_H */ |