mirror of https://gitee.com/openkylin/linux.git
19 lines
423 B
C
19 lines
423 B
C
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#ifndef ASM_EDAC_H
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#define ASM_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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{
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unsigned long *virt_addr = va;
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u32 i;
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for (i = 0; i < size / 4; i++, virt_addr++)
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/* Very carefully read and write to memory atomically
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* so we are interrupt, DMA and SMP safe.
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*/
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__asm__ __volatile__("lock; addl $0, %0"::"m"(*virt_addr));
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}
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#endif
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