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[CPUFREQ] acpi-cpufreq: Proper ReadModifyWrite of PERF_CTL MSR
authorVenki Pallipadi <venkatesh.pallipadi@intel.com>
Wed, 23 May 2007 22:42:13 +0000 (15:42 -0700)
committerDave Jones <davej@redhat.com>
Tue, 29 May 2007 20:56:40 +0000 (16:56 -0400)
commitdb53139c508b1a950c2bce66a194b4ff3b778033
tree158cc4af6254e7c707b508376f179ca971237597tree | snapshot
parentb80e3ab04fff84ec294af20a2f728ef1a88e8861commit | diff
[CPUFREQ] acpi-cpufreq: Proper ReadModifyWrite of PERF_CTL MSR

During recent acpi-cpufreq changes, writing to PERF_CTL msr
changed from RMW of entire 64 bit to RMW of low 32 bit and clearing of
upper 32 bit. Fix it back to do a proper RMW of the MSR.

Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Dave Jones <davej@redhat.com>
arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c diff | blob | history
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