mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-30 04:56:43 +07:00
1f7afb08a5
Same file, except for whitespace, comment formatting and: 32-bit: unsigned long *virt_addr = va; 64-bit: unsigned int *virt_addr = va; Both can be safely replaced by: u32 i, *virt_addr = va; Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
19 lines
419 B
C
19 lines
419 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
|