Commit e8f380e0 authored May 22, 2012 by Borislav Petkov Committed by Ingo Molnar May 23, 2012

x86/bitops: Move BIT_64() for a wider use



Needed for shifting 64-bit values on 32-bit, like MSR values,
for example.

Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Frank Arnold <frank.arnold@amd.com>
Link: http://lkml.kernel.org/r/1337684026-19740-1-git-send-email-bp@amd64.org


Signed-off-by: Ingo Molnar <mingo@kernel.org>

parent 239e7bad

arch/x86/include/asm/bitops.h

+2 −0

Original line number	Diff line number	Diff line
		@@ -15,6 +15,8 @@
		#include <linux/compiler.h>
		#include <asm/alternative.h>

		#define BIT_64(n) (U64_C(1) << (n))

		/*
		* These have to be done with inline assembly: that way the bit-setting
		* is guaranteed to be atomic. All bit operations return 0 if the bit

drivers/edac/mce_amd.h

+0 −2

Original line number	Diff line number	Diff line
		@@ -5,8 +5,6 @@

		#include <asm/mce.h>

		#define BIT_64(n) (U64_C(1) << (n))

		#define EC(x) ((x) & 0xffff)
		#define XEC(x, mask) (((x) >> 16) & mask)