forked from luck/tmp_suning_uos_patched
bb8985586b
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
19 lines
430 B
C
19 lines
430 B
C
#ifndef ASM_X86__EDAC_H
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#define ASM_X86__EDAC_H
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/* ECC atomic, DMA, SMP and interrupt safe scrub function */
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static inline void atomic_scrub(void *va, u32 size)
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{
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u32 i, *virt_addr = va;
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/*
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* Very carefully read and write to memory atomically so we
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* are interrupt, DMA and SMP safe.
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*/
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for (i = 0; i < size / 4; i++, virt_addr++)
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asm volatile("lock; addl $0, %0"::"m" (*virt_addr));
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}
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#endif /* ASM_X86__EDAC_H */
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