]>
Commit | Line | Data |
---|---|---|
da9bb1d2 AC |
1 | #ifndef ASM_EDAC_H |
2 | #define ASM_EDAC_H | |
3 | ||
4 | /* ECC atomic, DMA, SMP and interrupt safe scrub function */ | |
5 | ||
6 | static __inline__ void atomic_scrub(void *va, u32 size) | |
7 | { | |
8 | unsigned long *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 |