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-rw-r--r--include/asm-x86_64/atomic.h12
-rw-r--r--include/asm-x86_64/edac.h18
2 files changed, 18 insertions, 12 deletions
diff --git a/include/asm-x86_64/atomic.h b/include/asm-x86_64/atomic.h
index 4048508c4f40..4b5cd553e772 100644
--- a/include/asm-x86_64/atomic.h
+++ b/include/asm-x86_64/atomic.h
@@ -426,17 +426,5 @@ __asm__ __volatile__(LOCK "orl %0,%1" \
426#define smp_mb__before_atomic_inc() barrier() 426#define smp_mb__before_atomic_inc() barrier()
427#define smp_mb__after_atomic_inc() barrier() 427#define smp_mb__after_atomic_inc() barrier()
428 428
429/* ECC atomic, DMA, SMP and interrupt safe scrub function */
430
431static __inline__ void atomic_scrub(u32 *virt_addr, u32 size)
432{
433 u32 i;
434 for (i = 0; i < size / 4; i++, virt_addr++)
435 /* Very carefully read and write to memory atomically
436 * so we are interrupt, DMA and SMP safe.
437 */
438 __asm__ __volatile__("lock; addl $0, %0"::"m"(*virt_addr));
439}
440
441#include <asm-generic/atomic.h> 429#include <asm-generic/atomic.h>
442#endif 430#endif
diff --git a/include/asm-x86_64/edac.h b/include/asm-x86_64/edac.h
new file mode 100644
index 000000000000..cad1cd42b4ee
--- /dev/null
+++ b/include/asm-x86_64/edac.h
@@ -0,0 +1,18 @@
1#ifndef ASM_EDAC_H
2#define ASM_EDAC_H
3
4/* ECC atomic, DMA, SMP and interrupt safe scrub function */
5
6static __inline__ void atomic_scrub(void *va, u32 size)
7{
8 unsigned int *virt_addr = va;
9 u32 i;
10
11 for (i = 0; i < size / 4; i++, virt_addr++)
12 /* Very carefully read and write to memory atomically
13 * so we are interrupt, DMA and SMP safe.
14 */
15 __asm__ __volatile__("lock; addl $0, %0"::"m"(*virt_addr));
16}
17
18#endif