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reboot. Safter the reboot the TCC is usually in the Automatic mode, in which reading current performance level is likely to produce bogus results make sure to switch it to the On-Demand mode and set to some known performance level. Unfortunately there is no reliable way to check that TCC is in the Automatic mode. Reading bit 4 of ACPI Thermal Monitor Control Register produces 0 regardless of the current mode. MFC after: 1 week |
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p4tcc.c |