From 79ed64e24d2276a9a28ec9c3e0eedd23812c93da Mon Sep 17 00:00:00 2001 From: Justus Winter <4winter@informatik.uni-hamburg.de> Date: Tue, 7 Jan 2014 13:15:51 +0100 Subject: include: add new file for cache-related definitions * include/cache.h (__cacheline_aligned): This macro can be used to align statically allocated objects so that they start at a cache line. --- include/cache.h | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100644 include/cache.h (limited to 'include/cache.h') diff --git a/include/cache.h b/include/cache.h new file mode 100644 index 00000000..6260366a --- /dev/null +++ b/include/cache.h @@ -0,0 +1,25 @@ +/* + * Copyright (c) 2013 Free Software Foundation. + * + * This program 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 2 of the License, or + * (at your option) any later version. + * + * This program 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. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#ifndef _MACH_CACHE_H_ +#define _MACH_CACHE_H_ + +/* This macro can be used to align statically allocated objects so + that they start at a cache line. */ +#define __cacheline_aligned __attribute__((aligned(1 << CPU_L1_SHIFT))) + +#endif /* _MACH_CACHE_H_ */ -- cgit v1.2.3