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19 lines
474 B
19 lines
474 B
/* SPDX-License-Identifier: GPL-2.0 */ |
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#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 edac_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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