1 files changed, 17 insertions, 4 deletions

diff --git a/include/asm-x86/edac.h b/include/asm-x86/edac.h
index f8b888e140b0..cf3200a745ad 100644
--- a/include/asm-x86/edac.h
+++ b/include/asm-x86/edac.h
@@ -1,5 +1,18 @@
-#ifdef CONFIG_X86_32
-# include "edac_32.h"
-#else
-# include "edac_64.h"
+#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