[userspace-rcu.git] / urcu / arch / sparc64.h

#ifndef _URCU_ARCH_SPARC64_H
#define _URCU_ARCH_SPARC64_H

/*
 * arch_sparc64.h: trivial definitions for the Sparc64 architecture.
 *
 * Copyright (c) 2009 Paul E. McKenney, IBM Corporation.
 * Copyright (c) 2009 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */

#include <urcu/compiler.h>
#include <urcu/config.h>
#include <urcu/syscall-compat.h>

#ifdef __cplusplus
extern "C" {
#endif 

#define CAA_CACHE_LINE_SIZE	256

/*
 * Inspired from the Linux kernel. Workaround Spitfire bug #51.
 */
#define membar_safe(type)			\
__asm__ __volatile__("ba,pt %%xcc, 1f\n\t"	\
		     "membar " type "\n"	\
		     "1:\n"			\
		     : : : "memory")

#define cmm_mb()	membar_safe("#LoadLoad | #LoadStore | #StoreStore | #StoreLoad")
#define cmm_rmb()	membar_safe("#LoadLoad")
#define cmm_wmb()	membar_safe("#StoreStore")

typedef unsigned long long cycles_t;

static inline cycles_t caa_get_cycles (void)
{
	return 0;	/* unimplemented */
}

#ifdef __cplusplus 
}
#endif

#include <urcu/arch/generic.h>

#endif /* _URCU_ARCH_SPARC64_H */
Commit	Line	Data
58de5a4b MD	1	#ifndef _URCU_ARCH_SPARC64_H
	2	#define _URCU_ARCH_SPARC64_H
	3
	4	/*
	5	* arch_sparc64.h: trivial definitions for the Sparc64 architecture.
	6	*
	7	* Copyright (c) 2009 Paul E. McKenney, IBM Corporation.
6982d6d7	8	* Copyright (c) 2009 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
58de5a4b MD	9	*
	10	* This library is free software; you can redistribute it and/or
	11	* modify it under the terms of the GNU Lesser General Public
	12	* License as published by the Free Software Foundation; either
	13	* version 2.1 of the License, or (at your option) any later version.
05dd4b94	14	*
58de5a4b MD	15	* This library is distributed in the hope that it will be useful,
	16	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	17	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	18	* Lesser General Public License for more details.
	19	*
	20	* You should have received a copy of the GNU Lesser General Public
	21	* License along with this library; if not, write to the Free Software
	22	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
	23	*/
	24
	25	#include <urcu/compiler.h>
	26	#include <urcu/config.h>
999991c6	27	#include <urcu/syscall-compat.h>
58de5a4b	28
36bc70a8 MD	29	#ifdef __cplusplus
	30	extern "C" {
	31	#endif
	32
06f22bdb	33	#define CAA_CACHE_LINE_SIZE 256
58de5a4b	34
58de5a4b MD	35	/*
	36	* Inspired from the Linux kernel. Workaround Spitfire bug #51.
	37	*/
	38	#define membar_safe(type) \
	39	__asm__ __volatile__("ba,pt %%xcc, 1f\n\t" \
	40	"membar " type "\n" \
	41	"1:\n" \
	42	: : : "memory")
	43
5481ddb3 DG	44	#define cmm_mb() membar_safe("#LoadLoad \| #LoadStore \| #StoreStore \| #StoreLoad")
	45	#define cmm_rmb() membar_safe("#LoadLoad")
	46	#define cmm_wmb() membar_safe("#StoreStore")
58de5a4b	47
58de5a4b MD	48	typedef unsigned long long cycles_t;
58de5a4b MD	49
71bce82c	50	static inline cycles_t caa_get_cycles (void)
58de5a4b MD	51	{
	52	return 0; /* unimplemented */
	53	}
	54
36bc70a8 MD	55	#ifdef __cplusplus
	56	}
	57	#endif
	58
1b9119f8	59	#include <urcu/arch/generic.h>
e4d1eb09	60
58de5a4b	61	#endif /* _URCU_ARCH_SPARC64_H */