edac.h 430 字节
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H. Peter Anvin 已提交
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#ifndef _ASM_X86_EDAC_H
#define _ASM_X86_EDAC_H
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/* ECC atomic, DMA, SMP and interrupt safe scrub function */

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static inline void atomic_scrub(void *va, u32 size)
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{
	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++)
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		asm volatile("lock; addl $0, %0"::"m" (*virt_addr));
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}

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H. Peter Anvin 已提交
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#endif /* _ASM_X86_EDAC_H */