projects / thirdparty / gcc.git / blame
| Commit | Line | Data |
|---|---|---|
| a945c346 | 1 | /* Copyright (C) 2011-2024 Free Software Foundation, Inc. |
| aebac0ca RH |
2 | Contributed by Richard Henderson <rth@redhat.com>. |
| 3 | ||
| 4 | This file is part of the GNU Transactional Memory Library (libitm). | |
| 5 | ||
| 6 | Libitm is free software; you can redistribute it and/or modify it | |
| 7 | under the terms of the GNU General Public License as published by | |
| 8 | the Free Software Foundation; either version 3 of the License, or | |
| 9 | (at your option) any later version. | |
| 10 | ||
| 11 | Libitm is distributed in the hope that it will be useful, but WITHOUT ANY | |
| 12 | WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS | |
| 13 | FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
| 14 | more details. | |
| 15 | ||
| 16 | Under Section 7 of GPL version 3, you are granted additional | |
| 17 | permissions described in the GCC Runtime Library Exception, version | |
| 18 | 3.1, as published by the Free Software Foundation. | |
| 19 | ||
| 20 | You should have received a copy of the GNU General Public License and | |
| 21 | a copy of the GCC Runtime Library Exception along with this program; | |
| 22 | see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
| 23 | <http://www.gnu.org/licenses/>. */ | |
| 24 | ||
| 25 | namespace GTM HIDDEN { | |
| 26 | ||
| 27 | typedef struct gtm_jmpbuf | |
| 28 | { | |
| 29 | unsigned long long vfp[8]; /* d8-d15 */ | |
| 30 | unsigned long long iwmmxt[6]; /* cr10-cr15 */ | |
| 31 | unsigned long gr[8]; /* r4-r11 */ | |
| 32 | void *cfa; | |
| 33 | unsigned long pc; | |
| 34 | } gtm_jmpbuf; | |
| 35 | ||
| aebac0ca RH |
36 | /* ??? The size of one line in hardware caches (in bytes). */ |
| 37 | #define HW_CACHELINE_SIZE 64 | |
| 38 | ||
| 39 | static inline void | |
| 40 | cpu_relax (void) | |
| 41 | { | |
| 42 | /* ??? The kernel uses the condition | |
| 43 | #if __LINUX_ARM_ARCH__ == 6 || defined(CONFIG_ARM_ERRATA_754327) | |
| 44 | Given that we're actually just waiting, it doesn't seem like it | |
| 45 | hurts to simply use a full barrier all the time. */ | |
| 46 | __sync_synchronize (); | |
| 47 | } | |
| 48 | ||
| 49 | } // namespace GTM |