| #ifndef _ASMARM_BARRIER_H_ |
| #define _ASMARM_BARRIER_H_ |
| /* |
| * Adapted from arch/arm/include/asm/barrier.h |
| * |
| * Copyright (C) 2017, Red Hat Inc, Andrew Jones <drjones@redhat.com> |
| * |
| * This work is licensed under the terms of the GNU GPL, version 2. |
| */ |
| |
| #define sev() asm volatile("sev" : : : "memory") |
| #define wfe() asm volatile("wfe" : : : "memory") |
| #define wfi() asm volatile("wfi" : : : "memory") |
| #define yield() asm volatile("yield" : : : "memory") |
| #define cpu_relax() yield() |
| |
| #define isb(option) __asm__ __volatile__ ("isb " #option : : : "memory") |
| #define dsb(option) __asm__ __volatile__ ("dsb " #option : : : "memory") |
| #define dmb(option) __asm__ __volatile__ ("dmb " #option : : : "memory") |
| |
| #define mb() dsb() |
| #define rmb() dsb() |
| #define wmb() dsb(st) |
| #define smp_mb() dmb(ish) |
| #define smp_rmb() smp_mb() |
| #define smp_wmb() dmb(ishst) |
| |
| #endif /* _ASMARM_BARRIER_H_ */ |
