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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: Peter Zijlstra <peterz@infradead.org> Acked-by: Paul 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: Ingo Molnar <mingo@kernel.org>
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/*
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* Copyright (C) 2004, 2007-2010, 2011-2012 Synopsys, Inc. (www.synopsys.com)
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#ifndef __ASM_BARRIER_H
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#define __ASM_BARRIER_H
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#ifndef __ASSEMBLY__
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/* TODO-vineetg: Need to see what this does, don't we need sync anywhere */
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#define mb() __asm__ __volatile__ ("" : : : "memory")
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#define rmb() mb()
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#define wmb() mb()
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#define set_mb(var, value) do { var = value; mb(); } while (0)
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#define set_wmb(var, value) do { var = value; wmb(); } while (0)
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#define read_barrier_depends() mb()
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/* TODO-vineetg verify the correctness of macros here */
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#ifdef CONFIG_SMP
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#define smp_mb() mb()
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#define smp_rmb() rmb()
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#define smp_wmb() wmb()
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#else
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#define smp_mb() barrier()
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#define smp_rmb() barrier()
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#define smp_wmb() barrier()
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#endif
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#define smp_read_barrier_depends() do { } while (0)
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#endif
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#endif
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/*
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* Memory barrier definitions for the Hexagon architecture
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*
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* Copyright (c) 2010-2011, The Linux Foundation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 and
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* only version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA.
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*/
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#ifndef _ASM_BARRIER_H
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#define _ASM_BARRIER_H
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#define rmb() barrier()
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#define read_barrier_depends() barrier()
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#define wmb() barrier()
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#define mb() barrier()
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#define smp_rmb() barrier()
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#define smp_read_barrier_depends() barrier()
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#define smp_wmb() barrier()
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#define smp_mb() barrier()
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/* Set a value and use a memory barrier. Used by the scheduler somewhere. */
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#define set_mb(var, value) \
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do { var = value; mb(); } while (0)
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#endif /* _ASM_BARRIER_H */
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