edac.h

 1/* SPDX-License-Identifier: GPL-2.0 */
 2#ifndef _ASM_X86_EDAC_H
 3#define _ASM_X86_EDAC_H
 4
 5/* ECC atomic, DMA, SMP and interrupt safe scrub function */
 6
 7static inline void edac_atomic_scrub(void *va, u32 size)
 8{
 9	u32 i, *virt_addr = va;
10
11	/*
12	 * Very carefully read and write to memory atomically so we
13	 * are interrupt, DMA and SMP safe.
14	 */
15	for (i = 0; i < size / 4; i++, virt_addr++)
16		asm volatile("lock addl $0, %0"::"m" (*virt_addr));
17}
18
19#endif /* _ASM_X86_EDAC_H */