提交 2ab08ee9 编写于 作者: P Peter Zijlstra 提交者: Ingo Molnar

arc,hexagon: Delete asm/barrier.h

Both already use asm-generic/barrier.h as per their
include/asm/Kbuild. Remove the stale files.
Signed-off-by: NPeter Zijlstra <peterz@infradead.org>
Acked-by: NPaul E. McKenney <paulmck@linux.vnet.ibm.com>
Link: http://lkml.kernel.org/n/tip-c7vlkshl3tblim0o8z2p70kt@git.kernel.org
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Richard Kuo <rkuo@codeaurora.org>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: linux-hexagon@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: NIngo Molnar <mingo@kernel.org>
上级 e4f9bfb3
/*
* Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef __ASM_BARRIER_H
#define __ASM_BARRIER_H
#ifndef __ASSEMBLY__
/* TODO-vineetg: Need to see what this does, don't we need sync anywhere */
#define mb() __asm__ __volatile__ ("" : : : "memory")
#define rmb() mb()
#define wmb() mb()
#define set_mb(var, value) do { var = value; mb(); } while (0)
#define set_wmb(var, value) do { var = value; wmb(); } while (0)
#define read_barrier_depends() mb()
/* TODO-vineetg verify the correctness of macros here */
#ifdef CONFIG_SMP
#define smp_mb() mb()
#define smp_rmb() rmb()
#define smp_wmb() wmb()
#else
#define smp_mb() barrier()
#define smp_rmb() barrier()
#define smp_wmb() barrier()
#endif
#define smp_read_barrier_depends() do { } while (0)
#endif
#endif
/*
* Memory barrier definitions for the Hexagon architecture
*
* Copyright (c) 2010-2011, The Linux Foundation. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 and
* only version 2 as published by the Free Software Foundation.
*
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA.
*/
#ifndef _ASM_BARRIER_H
#define _ASM_BARRIER_H
#define rmb() barrier()
#define read_barrier_depends() barrier()
#define wmb() barrier()
#define mb() barrier()
#define smp_rmb() barrier()
#define smp_read_barrier_depends() barrier()
#define smp_wmb() barrier()
#define smp_mb() barrier()
/* Set a value and use a memory barrier. Used by the scheduler somewhere. */
#define set_mb(var, value) \
do { var = value; mb(); } while (0)
#endif /* _ASM_BARRIER_H */
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