5c7dd7acc3
repo: https://github.com/T-head-Semi/linux commit: b1313fe517ca3703119dcc99ef3bbf75ab42bcfb Change-Id: I6cbb35294024ea3a66140e311f4bb705fd7fd626
20 lines
474 B
C
20 lines
474 B
C
/* 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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