From 96a388de5dc53a8b234b3fd41f3ae2cedc9ffd42 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Thu, 11 Oct 2007 11:20:03 +0200 Subject: i386/x86_64: move headers to include/asm-x86 Move the headers to include/asm-x86 and fixup the header install make rules Signed-off-by: Thomas Gleixner Signed-off-by: Ingo Molnar --- include/asm-x86/edac_64.h | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) create mode 100644 include/asm-x86/edac_64.h (limited to 'include/asm-x86/edac_64.h') diff --git a/include/asm-x86/edac_64.h b/include/asm-x86/edac_64.h new file mode 100644 index 00000000000..cad1cd42b4e --- /dev/null +++ b/include/asm-x86/edac_64.h @@ -0,0 +1,18 @@ +#ifndef ASM_EDAC_H +#define ASM_EDAC_H + +/* ECC atomic, DMA, SMP and interrupt safe scrub function */ + +static __inline__ void atomic_scrub(void *va, u32 size) +{ + unsigned int *virt_addr = va; + u32 i; + + for (i = 0; i < size / 4; i++, virt_addr++) + /* Very carefully read and write to memory atomically + * so we are interrupt, DMA and SMP safe. + */ + __asm__ __volatile__("lock; addl $0, %0"::"m"(*virt_addr)); +} + +#endif -- cgit v1.2.3