| #ifndef ASM_EDAC_H | |
| #define ASM_EDAC_H | |
| /* ECC atomic, DMA, SMP and interrupt safe scrub function */ | |
| static __inline__ void atomic_scrub(void *va, u32 size) | |
| { | |
| unsigned int *virt_addr = va; | |
| u32 i; | |
| for (i = 0; i < size / 4; i++, virt_addr++) | |
| /* Very carefully read and write to memory atomically | |
| * so we are interrupt, DMA and SMP safe. | |
| */ | |
| __asm__ __volatile__("lock; addl $0, %0"::"m"(*virt_addr)); | |
| } | |
| #endif |