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Andi Kleen 707fa8ed92 x86: Implement support to synchronize RDTSC with LFENCE on Intel CPUs 
According to Intel RDTSC can be always synchronized with LFENCE
on all current CPUs. Implement the necessary CPUID bit for that.

It is unclear yet if that is true for all future CPUs too,
but if there's another way the kernel can be always updated.

Cc: asit.k.mallick@intel.com
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-01-30 13:32:37 +01:00
..
alpha remove __attribute_used__ 2008-01-28 23:21:18 +01:00
arm spinlock: lockbreak cleanup 2008-01-30 13:31:20 +01:00
avr32 all archs: consolidate init and exit sections in vmlinux.lds.h 2008-01-28 23:21:17 +01:00
blackfin all archs: consolidate init and exit sections in vmlinux.lds.h 2008-01-28 23:21:17 +01:00
cris all archs: consolidate init and exit sections in vmlinux.lds.h 2008-01-28 23:21:17 +01:00
frv Remove references to "make dep" 2008-01-28 23:22:13 +01:00
h8300 all archs: consolidate init and exit sections in vmlinux.lds.h 2008-01-28 23:21:17 +01:00
ia64 spinlock: lockbreak cleanup 2008-01-30 13:31:20 +01:00
m32r spinlock: lockbreak cleanup 2008-01-30 13:31:20 +01:00
m68k all archs: consolidate init and exit sections in vmlinux.lds.h 2008-01-28 23:21:17 +01:00
m68knommu all archs: consolidate init and exit sections in vmlinux.lds.h 2008-01-28 23:21:17 +01:00
mips spinlock: lockbreak cleanup 2008-01-30 13:31:20 +01:00
parisc spinlock: lockbreak cleanup 2008-01-30 13:31:20 +01:00
powerpc spinlock: lockbreak cleanup 2008-01-30 13:31:20 +01:00
ppc Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6.25 2008-01-29 22:54:01 +11:00
s390 all archs: consolidate init and exit sections in vmlinux.lds.h 2008-01-28 23:21:17 +01:00
sh all archs: consolidate init and exit sections in vmlinux.lds.h 2008-01-28 23:21:17 +01:00
sparc all archs: consolidate init and exit sections in vmlinux.lds.h 2008-01-28 23:21:17 +01:00
sparc64 spinlock: lockbreak cleanup 2008-01-30 13:31:20 +01:00
um UML: remove remaining FASTCALL uses 2008-01-30 13:31:14 +01:00
v850 all archs: consolidate init and exit sections in vmlinux.lds.h 2008-01-28 23:21:17 +01:00
x86 x86: Implement support to synchronize RDTSC with LFENCE on Intel CPUs 2008-01-30 13:32:37 +01:00
xtensa Remove references to "make dep" 2008-01-28 23:22:13 +01:00
.gitignore arch: Ignore arch/i386 and arch/x86_64 2008-01-19 21:29:39 -08:00