x86: fix AMDC1E and XTOPOLOGY conflict in cpufeature
authorVenki Pallipadi <venkatesh.pallipadi@intel.com>
Tue, 7 Oct 2008 20:33:12 +0000 (13:33 -0700)
committerIngo Molnar <mingo@elte.hu>
Fri, 31 Oct 2008 10:01:40 +0000 (11:01 +0100)
commit2576c9991758e431b73e374f6019d6e1e12a8d36
tree43bf5402e3cef3af33d36c9ff382dbb9cc7855d6
parentb342797c1e5116a130841527b47dfaa462ed0968
x86: fix AMDC1E and XTOPOLOGY conflict in cpufeature

Impact: fix xsave slowdown regression

Fix two features from conflicting in feature bits.

Fixes this performance regression:

   Subject: cpu2000(both float and int) 13% regression with 2.6.28-rc1
   http://lkml.org/lkml/2008/10/28/36

Reported-by: "Zhang, Yanmin" <yanmin_zhang@linux.intel.com>
Bisected-by: "Zhang, Yanmin" <yanmin_zhang@linux.intel.com>
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
arch/x86/include/asm/cpufeature.h