mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2025-01-10 07:44:23 +08:00
725aea8732
Prefix arch-specific barrier macros with '__' to make use of instrumented generic macros. Prefix arch-specific bitops with 'arch_' to make use of instrumented generic functions. Provide stubs for 64-bit atomics when building with KCSAN. Disable KCSAN instrumentation in arch/xtensa/boot. Signed-off-by: Max Filippov <jcmvbkbc@gmail.com> Acked-by: Marco Elver <elver@google.com>
32 lines
710 B
C
32 lines
710 B
C
/*
|
|
* This file is subject to the terms and conditions of the GNU General Public
|
|
* License. See the file "COPYING" in the main directory of this archive
|
|
* for more details.
|
|
*
|
|
* Copyright (C) 2001 - 2012 Tensilica Inc.
|
|
*/
|
|
|
|
#ifndef _XTENSA_SYSTEM_H
|
|
#define _XTENSA_SYSTEM_H
|
|
|
|
#include <asm/core.h>
|
|
|
|
#define __mb() ({ __asm__ __volatile__("memw" : : : "memory"); })
|
|
#define __rmb() barrier()
|
|
#define __wmb() __mb()
|
|
|
|
#ifdef CONFIG_SMP
|
|
#define __smp_mb() __mb()
|
|
#define __smp_rmb() __rmb()
|
|
#define __smp_wmb() __wmb()
|
|
#endif
|
|
|
|
#if XCHAL_HAVE_S32C1I
|
|
#define __smp_mb__before_atomic() barrier()
|
|
#define __smp_mb__after_atomic() barrier()
|
|
#endif
|
|
|
|
#include <asm-generic/barrier.h>
|
|
|
|
#endif /* _XTENSA_SYSTEM_H */
|