[CPUFREQ] acpi-cpufreq: Proper ReadModifyWrite of PERF_CTL MSR

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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>

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Venki Pallipadi 2007-05-23 15:42:13 -07:00 • committed by Dave Jones

parent 0a4b2ccc55

commit 13424f6514

1 changed files with 5 additions and 8 deletions

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arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c

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