mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-26 22:24:09 +08:00
a904f5f9eb
Since mandatory barriers may be used (explicitly or implicitly via readl etc.) to ensure the ordering between Device and Normal memory accesses, a DMB is not enough. This patch converts it to a DSB. Cc: Colin Cross <ccross@android.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
31 lines
1005 B
C
31 lines
1005 B
C
/*
|
|
* arch/arm/mach-realview/include/mach/barriers.h
|
|
*
|
|
* Copyright (C) 2010 ARM Ltd.
|
|
* Written by Catalin Marinas <catalin.marinas@arm.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.
|
|
*
|
|
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
#ifndef __MACH_BARRIERS_H
|
|
#define __MACH_BARRIERS_H
|
|
|
|
#include <asm/outercache.h>
|
|
|
|
#define rmb() dsb()
|
|
#define wmb() do { dsb(); outer_sync(); } while (0)
|
|
#define mb() wmb()
|
|
|
|
#endif /* __MACH_BARRIERS_H */
|