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77ef50a5 VN |
1 | #ifndef ASM_X86__EDAC_H |
2 | #define ASM_X86__EDAC_H | |
1f7afb08 TG |
3 | |
4 | /* ECC atomic, DMA, SMP and interrupt safe scrub function */ | |
5 | ||
451dd983 | 6 | static inline void atomic_scrub(void *va, u32 size) |
1f7afb08 TG |
7 | { |
8 | u32 i, *virt_addr = va; | |
9 | ||
10 | /* | |
11 | * Very carefully read and write to memory atomically so we | |
12 | * are interrupt, DMA and SMP safe. | |
13 | */ | |
14 | for (i = 0; i < size / 4; i++, virt_addr++) | |
451dd983 | 15 | asm volatile("lock; addl $0, %0"::"m" (*virt_addr)); |
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16 | } |
17 | ||
77ef50a5 | 18 | #endif /* ASM_X86__EDAC_H */ |