/* Copyright (C) 2011-2015 Free Software Foundation, Inc. Contributed by Richard Henderson . This file is part of the GNU Transactional Memory Library (libitm). Libitm is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. Libitm is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. Under Section 7 of GPL version 3, you are granted additional permissions described in the GCC Runtime Library Exception, version 3.1, as published by the Free Software Foundation. You should have received a copy of the GNU General Public License and a copy of the GCC Runtime Library Exception along with this program; see the files COPYING3 and COPYING.RUNTIME respectively. If not, see . */ namespace GTM HIDDEN { typedef struct gtm_jmpbuf { unsigned long long vfp[8]; /* d8-d15 */ unsigned long long iwmmxt[6]; /* cr10-cr15 */ unsigned long gr[8]; /* r4-r11 */ void *cfa; unsigned long pc; } gtm_jmpbuf; /* ??? The size of one line in hardware caches (in bytes). */ #define HW_CACHELINE_SIZE 64 static inline void cpu_relax (void) { /* ??? The kernel uses the condition #if __LINUX_ARM_ARCH__ == 6 || defined(CONFIG_ARM_ERRATA_754327) Given that we're actually just waiting, it doesn't seem like it hurts to simply use a full barrier all the time. */ __sync_synchronize (); } } // namespace GTM