8cd5962571
On Core2 and older Intel CPUs, where TSC stops in C2, system does not allow C2 entrance if timecounter hardware is TSC. This is done by tc_windup() which tests for TC_FLAGS_C2STOP flag of the new timecounter and increases cpu_disable_c2_sleep if flag is set. Right now init_TSC_tc() only sets the flag if cpu_deepest_sleep >= 2, but TSC is initialized too early for this variable to be set by acpi_cpu.c. There is no reason to require that ACPI reported C2 and deeper states to set TC_FLAGS_C2STOP, so remove cpu_deepest_sleep test from init_TSC_tc() condition. And since this is the only use of the variable, remove it at all. Reported and submitted by: Jia-Shiun Li <jiashiun@gmail.com> Suggested by: jhb MFC after: 2 weeks
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