1#ifndef ASM_EDAC_H 2#define ASM_EDAC_H 3 4/* ECC atomic, DMA, SMP and interrupt safe scrub function */ 5 6static __inline__ void atomic_scrub(void *va, u32 size) 7{ 8 unsigned int *virt_addr = va; 9 u32 i; 10 11 for (i = 0; i < size / 4; i++, virt_addr++) 12 /* Very carefully read and write to memory atomically 13 * so we are interrupt, DMA and SMP safe. 14 */ 15 __asm__ __volatile__("lock; addl $0, %0"::"m"(*virt_addr)); 16} 17 18#endif 19