[thirdparty/gcc.git] / libitm / config / alpha / cacheline.h

/* Copyright (C) 2009-2013 Free Software Foundation, Inc.
   Contributed by Richard Henderson <rth@redhat.com>.

   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
   <http://www.gnu.org/licenses/>.  */

#ifndef LIBITM_ALPHA_CACHELINE_H
#define LIBITM_ALPHA_CACHELINE_H 1

// A cacheline is the smallest unit with which locks are associated.
// The current implementation of the _ITM_[RW] barriers assumes that
// all data types can fit (aligned) within a cachline, which means
// in practice sizeof(complex long double) is the smallest cacheline size.
// It ought to be small enough for efficient manipulation of the
// modification mask, below.
#define CACHELINE_SIZE 64

#include "config/generic/cacheline.h"

#endif // LIBITM_ALPHA_CACHELINE_H
Commit	Line	Data
75f9527c	1	/* Copyright (C) 2009-2013 Free Software Foundation, Inc.
0a35513e AH	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	#ifndef LIBITM_ALPHA_CACHELINE_H
	26	#define LIBITM_ALPHA_CACHELINE_H 1
	27
	28	// A cacheline is the smallest unit with which locks are associated.
	29	// The current implementation of the _ITM_[RW] barriers assumes that
	30	// all data types can fit (aligned) within a cachline, which means
	31	// in practice sizeof(complex long double) is the smallest cacheline size.
	32	// It ought to be small enough for efficient manipulation of the
	33	// modification mask, below.
	34	#define CACHELINE_SIZE 64
	35
79b1edb6	36	#include "config/generic/cacheline.h"
0a35513e	37
0a35513e	38	#endif // LIBITM_ALPHA_CACHELINE_H