mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-30 00:16:44 +07:00
19 lines
408 B
C
19 lines
408 B
C
#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
|