[PATCH] x86_64: Support constantly ticking TSCs
commitc29601e9c1e7893d1755364e350c9188bd56d69f
authorAndi Kleen <ak@suse.de>
Sat, 16 Apr 2005 22:25:05 +0000 (16 15:25 -0700)
committerLinus Torvalds <torvalds@ppc970.osdl.org>
Sat, 16 Apr 2005 22:25:05 +0000 (16 15:25 -0700)
tree14813ddce4d8897b40cc8b3a2f76ace3ac58b36f
parentdc37db4d8cb376bb67c6357c50d707ced3d71c39
[PATCH] x86_64: Support constantly ticking TSCs

On Intel Noconas the TSC ticks with a constant frequency.  Don't scale the
factor used by udelay when cpufreq changes the frequency.

This generalizes an earlier patch by Intel for this.

Cc: <venkatesh.pallipadi@intel.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
arch/x86_64/kernel/setup.c
arch/x86_64/kernel/time.c
include/asm-x86_64/cpufeature.h