x86: merge winchip-2 and winchip-2a cpu choices

[safe/jmp/linux-2.6] / include / asm-x86 / edac.h

diff --git a/include/asm-x86/edac.h b/include/asm-x86/edac.h
index f8b888e..9493c5b 100644 (file)
--- 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"
-#endif
+#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 */