diff options
Diffstat (limited to 'include/asm-x86/edac.h')
| -rw-r--r-- | include/asm-x86/edac.h | 21 |
1 files changed, 17 insertions, 4 deletions
diff --git a/include/asm-x86/edac.h b/include/asm-x86/edac.h index f8b888e140b..cf3200a745a 100644 --- a/include/asm-x86/edac.h +++ b/include/asm-x86/edac.h @@ -1,5 +1,18 @@ -#ifdef CONFIG_X86_32 -# include "edac_32.h" -#else -# include "edac_64.h" +#ifndef _ASM_X86_EDAC_H +#define _ASM_X86_EDAC_H + +/* ECC atomic, DMA, SMP and interrupt safe scrub function */ + +static __inline__ void atomic_scrub(void *va, u32 size) +{ + u32 i, *virt_addr = va; + + /* + * Very carefully read and write to memory atomically so we + * are interrupt, DMA and SMP safe. + */ + for (i = 0; i < size / 4; i++, virt_addr++) + __asm__ __volatile__("lock; addl $0, %0"::"m"(*virt_addr)); +} + #endif |