/* SPDX-License-Identifier: GPL-2.0 */ | |
#ifndef _ASM_RISCV_MMIOWB_H | |
#define _ASM_RISCV_MMIOWB_H | |
/* | |
* "o,w" is sufficient to ensure that all writes to the device have completed | |
* before the write to the spinlock is allowed to commit. | |
*/ | |
#define mmiowb() __asm__ __volatile__ ("fence o,w" : : : "memory"); | |
#include <linux/smp.h> | |
#include <asm-generic/mmiowb.h> | |
#endif /* _ASM_RISCV_MMIOWB_H */ |