aboutsummaryrefslogtreecommitdiffstats
path: root/arch/x86/include/asm/edac.h
blob: cf8fdf83b23186f476f21a5d7938bd6b351a5d6d (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
#ifndef _ASM_X86_EDAC_H
#define _ASM_X86_EDAC_H

/* ECC atomic, DMA, SMP and interrupt safe scrub function */

static inline void edac_atomic_scrub(void *va, u32 size)
{
	u32 i, *virt_addr = va;

	/*
	 * Very carefully read and write to memory atomically so we
	 * are interrupt, DMA and SMP safe.
	 */
	for (i = 0; i < size / 4; i++, virt_addr++)
		asm volatile("lock; addl $0, %0"::"m" (*virt_addr));
}

#endif /* _ASM_X86_EDAC_H */

Privacy Policy