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| author | Borislav Petkov <borislav.petkov@amd.com> | 2012-05-22 12:53:45 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2012-05-23 17:16:42 +0200 |
| commit | e8f380e00840f694599e6ab42806639f7de26f11 (patch) | |
| tree | 10568c5f17c4bc035abdf47225486df102cff9e6 /arch/x86 | |
| parent | 239e7bad43dadc43ccf4bbf51f798189fd2cc120 (diff) | |
| download | linux-3.10-e8f380e00840f694599e6ab42806639f7de26f11.tar.gz linux-3.10-e8f380e00840f694599e6ab42806639f7de26f11.tar.bz2 linux-3.10-e8f380e00840f694599e6ab42806639f7de26f11.zip | |
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>
Diffstat (limited to 'arch/x86')
| -rw-r--r-- | arch/x86/include/asm/bitops.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/include/asm/bitops.h b/arch/x86/include/asm/bitops.h index b97596e2b68..a6983b27722 100644 --- a/arch/x86/include/asm/bitops.h +++ b/arch/x86/include/asm/bitops.h @@ -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 |