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) #ifndef _ASM_X86_EDAC_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) #define _ASM_X86_EDAC_H
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) /* ECC atomic, DMA, SMP and interrupt safe scrub function */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) static inline void edac_atomic_scrub(void *va, u32 size)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) 	u32 i, *virt_addr = va;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) 	 * Very carefully read and write to memory atomically so we
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 	 * are interrupt, DMA and SMP safe.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 	for (i = 0; i < size / 4; i++, virt_addr++)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 		asm volatile("lock; addl $0, %0"::"m" (*virt_addr));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #endif /* _ASM_X86_EDAC_H */