File: edac.h

package info (click to toggle)
linux 3.2.73-2
  • links: PTS, VCS
  • area: main
  • in suites: wheezy
  • size: 692,996 kB
  • sloc: ansic: 9,719,677; asm: 244,034; xml: 40,377; makefile: 23,845; perl: 16,079; python: 4,929; sh: 4,425; cpp: 3,598; yacc: 2,979; lex: 1,726; awk: 708; pascal: 231; lisp: 218; sed: 30
file content (18 lines) | stat: -rw-r--r-- 430 bytes parent folder | download | duplicates (25)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
#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 /* _ASM_X86_EDAC_H */