Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) /* SPDX-License-Identifier: GPL-2.0 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) #ifndef _ASM_RISCV_MMIOWB_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) #define _ASM_RISCV_MMIOWB_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7)  * "o,w" is sufficient to ensure that all writes to the device have completed
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8)  * before the write to the spinlock is allowed to commit.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #define mmiowb()	__asm__ __volatile__ ("fence o,w" : : : "memory");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/smp.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <asm-generic/mmiowb.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #endif	/* _ASM_RISCV_MMIOWB_H */