1/*===---- htmxlintrin.h - XL compiler HTM execution intrinsics-------------===*\
2 *
3 * Permission is hereby granted, free of charge, to any person obtaining a copy
4 * of this software and associated documentation files (the "Software"), to deal
5 * in the Software without restriction, including without limitation the rights
6 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
7 * copies of the Software, and to permit persons to whom the Software is
8 * furnished to do so, subject to the following conditions:
9 *
10 * The above copyright notice and this permission notice shall be included in
11 * all copies or substantial portions of the Software.
12 *
13 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
14 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
15 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
16 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
17 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
18 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
19 * THE SOFTWARE.
20 *
21\*===----------------------------------------------------------------------===*/
22
23#ifndef __HTMXLINTRIN_H
24#define __HTMXLINTRIN_H
25
26#ifndef __HTM__
27#error "HTM instruction set not enabled"
28#endif
29
30#include <htmintrin.h>
31
32#ifdef __powerpc__
33
34#ifdef __cplusplus
35extern "C" {
36#endif
37
38#define _TEXASR_PTR(TM_BUF) ((texasr_t *)((char *)(TM_BUF) + 0))
39#define _TEXASRU_PTR(TM_BUF) ((texasru_t *)((char *)(TM_BUF) + 0))
40#define _TEXASRL_PTR(TM_BUF) ((texasrl_t *)((char *)(TM_BUF) + 4))
41#define _TFIAR_PTR(TM_BUF) ((tfiar_t *)((char *)(TM_BUF) + 8))
42
43typedef char TM_buff_type[16];
44
45/* This macro can be used to determine whether a transaction was successfully
46   started from the __TM_begin() and __TM_simple_begin() intrinsic functions
47   below.  */
48#define _HTM_TBEGIN_STARTED     1
49
50extern __inline long
51__attribute__ ((__gnu_inline__, __always_inline__, __artificial__))
52__TM_simple_begin (void)
53{
54  if (__builtin_expect (__builtin_tbegin (0), 1))
55    return _HTM_TBEGIN_STARTED;
56  return 0;
57}
58
59extern __inline long
60__attribute__ ((__gnu_inline__, __always_inline__, __artificial__))
61__TM_begin (void* const __TM_buff)
62{
63  *_TEXASRL_PTR (__TM_buff) = 0;
64  if (__builtin_expect (__builtin_tbegin (0), 1))
65    return _HTM_TBEGIN_STARTED;
66#ifdef __powerpc64__
67  *_TEXASR_PTR (__TM_buff) = __builtin_get_texasr ();
68#else
69  *_TEXASRU_PTR (__TM_buff) = __builtin_get_texasru ();
70  *_TEXASRL_PTR (__TM_buff) = __builtin_get_texasr ();
71#endif
72  *_TFIAR_PTR (__TM_buff) = __builtin_get_tfiar ();
73  return 0;
74}
75
76extern __inline long
77__attribute__ ((__gnu_inline__, __always_inline__, __artificial__))
78__TM_end (void)
79{
80  if (__builtin_expect (__builtin_tend (0), 1))
81    return 1;
82  return 0;
83}
84
85extern __inline void
86__attribute__ ((__gnu_inline__, __always_inline__, __artificial__))
87__TM_abort (void)
88{
89  __builtin_tabort (0);
90}
91
92extern __inline void
93__attribute__ ((__gnu_inline__, __always_inline__, __artificial__))
94__TM_named_abort (unsigned char const __code)
95{
96  __builtin_tabort (__code);
97}
98
99extern __inline void
100__attribute__ ((__gnu_inline__, __always_inline__, __artificial__))
101__TM_resume (void)
102{
103  __builtin_tresume ();
104}
105
106extern __inline void
107__attribute__ ((__gnu_inline__, __always_inline__, __artificial__))
108__TM_suspend (void)
109{
110  __builtin_tsuspend ();
111}
112
113extern __inline long
114__attribute__ ((__gnu_inline__, __always_inline__, __artificial__))
115__TM_is_user_abort (void* const __TM_buff)
116{
117  texasru_t texasru = *_TEXASRU_PTR (__TM_buff);
118  return _TEXASRU_ABORT (texasru);
119}
120
121extern __inline long
122__attribute__ ((__gnu_inline__, __always_inline__, __artificial__))
123__TM_is_named_user_abort (void* const __TM_buff, unsigned char *__code)
124{
125  texasru_t texasru = *_TEXASRU_PTR (__TM_buff);
126
127  *__code = _TEXASRU_FAILURE_CODE (texasru);
128  return _TEXASRU_ABORT (texasru);
129}
130
131extern __inline long
132__attribute__ ((__gnu_inline__, __always_inline__, __artificial__))
133__TM_is_illegal (void* const __TM_buff)
134{
135  texasru_t texasru = *_TEXASRU_PTR (__TM_buff);
136  return _TEXASRU_DISALLOWED (texasru);
137}
138
139extern __inline long
140__attribute__ ((__gnu_inline__, __always_inline__, __artificial__))
141__TM_is_footprint_exceeded (void* const __TM_buff)
142{
143  texasru_t texasru = *_TEXASRU_PTR (__TM_buff);
144  return _TEXASRU_FOOTPRINT_OVERFLOW (texasru);
145}
146
147extern __inline long
148__attribute__ ((__gnu_inline__, __always_inline__, __artificial__))
149__TM_nesting_depth (void* const __TM_buff)
150{
151  texasrl_t texasrl;
152
153  if (_HTM_STATE (__builtin_ttest ()) == _HTM_NONTRANSACTIONAL)
154    {
155      texasrl = *_TEXASRL_PTR (__TM_buff);
156      if (!_TEXASR_FAILURE_SUMMARY (texasrl))
157        texasrl = 0;
158    }
159  else
160    texasrl = (texasrl_t) __builtin_get_texasr ();
161
162  return _TEXASR_TRANSACTION_LEVEL (texasrl);
163}
164
165extern __inline long
166__attribute__ ((__gnu_inline__, __always_inline__, __artificial__))
167__TM_is_nested_too_deep(void* const __TM_buff)
168{
169  texasru_t texasru = *_TEXASRU_PTR (__TM_buff);
170  return _TEXASRU_NESTING_OVERFLOW (texasru);
171}
172
173extern __inline long
174__attribute__ ((__gnu_inline__, __always_inline__, __artificial__))
175__TM_is_conflict(void* const __TM_buff)
176{
177  texasru_t texasru = *_TEXASRU_PTR (__TM_buff);
178  /* Return TEXASR bits 11 (Self-Induced Conflict) through
179     14 (Translation Invalidation Conflict).  */
180  return (_TEXASRU_EXTRACT_BITS (texasru, 14, 4)) ? 1 : 0;
181}
182
183extern __inline long
184__attribute__ ((__gnu_inline__, __always_inline__, __artificial__))
185__TM_is_failure_persistent(void* const __TM_buff)
186{
187  texasru_t texasru = *_TEXASRU_PTR (__TM_buff);
188  return _TEXASRU_FAILURE_PERSISTENT (texasru);
189}
190
191extern __inline long
192__attribute__ ((__gnu_inline__, __always_inline__, __artificial__))
193__TM_failure_address(void* const __TM_buff)
194{
195  return *_TFIAR_PTR (__TM_buff);
196}
197
198extern __inline long long
199__attribute__ ((__gnu_inline__, __always_inline__, __artificial__))
200__TM_failure_code(void* const __TM_buff)
201{
202  return *_TEXASR_PTR (__TM_buff);
203}
204
205#ifdef __cplusplus
206}
207#endif
208
209#endif /* __powerpc__ */
210
211#ifdef __s390__
212
213#include <stdint.h>
214
215/* These intrinsics are being made available for compatibility with
216   the IBM XL compiler.  For documentation please see the "z/OS XL
217   C/C++ Programming Guide" publically available on the web.  */
218
219static __inline long __attribute__((__always_inline__, __nodebug__))
220__TM_simple_begin ()
221{
222  return __builtin_tbegin_nofloat (0);
223}
224
225static __inline long __attribute__((__always_inline__, __nodebug__))
226__TM_begin (void* const __tdb)
227{
228  return __builtin_tbegin_nofloat (__tdb);
229}
230
231static __inline long __attribute__((__always_inline__, __nodebug__))
232__TM_end ()
233{
234  return __builtin_tend ();
235}
236
237static __inline void __attribute__((__always_inline__))
238__TM_abort ()
239{
240  return __builtin_tabort (_HTM_FIRST_USER_ABORT_CODE);
241}
242
243static __inline void __attribute__((__always_inline__, __nodebug__))
244__TM_named_abort (unsigned char const __code)
245{
246  return __builtin_tabort ((int)_HTM_FIRST_USER_ABORT_CODE + __code);
247}
248
249static __inline void __attribute__((__always_inline__, __nodebug__))
250__TM_non_transactional_store (void* const __addr, long long const __value)
251{
252  __builtin_non_tx_store ((uint64_t*)__addr, (uint64_t)__value);
253}
254
255static __inline long __attribute__((__always_inline__, __nodebug__))
256__TM_nesting_depth (void* const __tdb_ptr)
257{
258  int depth = __builtin_tx_nesting_depth ();
259  struct __htm_tdb *tdb = (struct __htm_tdb*)__tdb_ptr;
260
261  if (depth != 0)
262    return depth;
263
264  if (tdb->format != 1)
265    return 0;
266  return tdb->nesting_depth;
267}
268
269/* Transaction failure diagnostics */
270
271static __inline long __attribute__((__always_inline__, __nodebug__))
272__TM_is_user_abort (void* const __tdb_ptr)
273{
274  struct __htm_tdb *tdb = (struct __htm_tdb*)__tdb_ptr;
275
276  if (tdb->format != 1)
277    return 0;
278
279  return !!(tdb->abort_code >= _HTM_FIRST_USER_ABORT_CODE);
280}
281
282static __inline long __attribute__((__always_inline__, __nodebug__))
283__TM_is_named_user_abort (void* const __tdb_ptr, unsigned char* __code)
284{
285  struct __htm_tdb *tdb = (struct __htm_tdb*)__tdb_ptr;
286
287  if (tdb->format != 1)
288    return 0;
289
290  if (tdb->abort_code >= _HTM_FIRST_USER_ABORT_CODE)
291    {
292      *__code = tdb->abort_code - _HTM_FIRST_USER_ABORT_CODE;
293      return 1;
294    }
295  return 0;
296}
297
298static __inline long __attribute__((__always_inline__, __nodebug__))
299__TM_is_illegal (void* const __tdb_ptr)
300{
301  struct __htm_tdb *tdb = (struct __htm_tdb*)__tdb_ptr;
302
303  return (tdb->format == 1
304	  && (tdb->abort_code == 4 /* unfiltered program interruption */
305	      || tdb->abort_code == 11 /* restricted instruction */));
306}
307
308static __inline long __attribute__((__always_inline__, __nodebug__))
309__TM_is_footprint_exceeded (void* const __tdb_ptr)
310{
311  struct __htm_tdb *tdb = (struct __htm_tdb*)__tdb_ptr;
312
313  return (tdb->format == 1
314	  && (tdb->abort_code == 7 /* fetch overflow */
315	      || tdb->abort_code == 8 /* store overflow */));
316}
317
318static __inline long __attribute__((__always_inline__, __nodebug__))
319__TM_is_nested_too_deep (void* const __tdb_ptr)
320{
321  struct __htm_tdb *tdb = (struct __htm_tdb*)__tdb_ptr;
322
323  return tdb->format == 1 && tdb->abort_code == 13; /* depth exceeded */
324}
325
326static __inline long __attribute__((__always_inline__, __nodebug__))
327__TM_is_conflict (void* const __tdb_ptr)
328{
329  struct __htm_tdb *tdb = (struct __htm_tdb*)__tdb_ptr;
330
331  return (tdb->format == 1
332	  && (tdb->abort_code == 9 /* fetch conflict */
333	      || tdb->abort_code == 10 /* store conflict */));
334}
335
336static __inline long __attribute__((__always_inline__, __nodebug__))
337__TM_is_failure_persistent (long const __result)
338{
339  return __result == _HTM_TBEGIN_PERSISTENT;
340}
341
342static __inline long __attribute__((__always_inline__, __nodebug__))
343__TM_failure_address (void* const __tdb_ptr)
344{
345  struct __htm_tdb *tdb = (struct __htm_tdb*)__tdb_ptr;
346  return tdb->atia;
347}
348
349static __inline long __attribute__((__always_inline__, __nodebug__))
350__TM_failure_code (void* const __tdb_ptr)
351{
352  struct __htm_tdb *tdb = (struct __htm_tdb*)__tdb_ptr;
353
354  return tdb->abort_code;
355}
356
357#endif /* __s390__ */
358
359#endif /* __HTMXLINTRIN_H  */
360