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Dude have you read and understood any of the thread?
Let's be fair shall we? Let's read page 292 of the specification, which clearly states:
Each performance state entry contains six data fields as follows:
CoreFreq. Indicates the core CPU operating frequency (in MHz).
Power. Indicates the performance state��‚��„�s maximum power dissipation (in milliWatts).
TransitionLatency. Indicates the worst-case latency in microseconds that the CPU is unavailable
during a transition from any performance state to this performance state.
BusMasterLatency. Indicates the worst-case latency in microseconds that Bus Masters are prevented
from accessing memory during a transition from any performance state to this performance state.
Control. Indicates the value to be written to the Performance Control Register (PERF_CTRL) in order
to initiate a transition to the performance state.
Status. Indicates the value that OSPM will compare to a value read from the Performance Status
Register (PERF_STATUS) to ensure that the transition to the performance state was successful. OSPM may always place the CPU in the lowest power state, but additional states are only available when indicated by the _PPC method.
And thus there is no multiplier anywhere in the _PSS. Let's tackle your next blurb:
You just got that from some "guide" on the Internet, but point me to a single document, a single page in the specification where it states that you need to calculate PERF_CTRL and PERF_STATUS like that! No to mention this next snippet:The important values being fid (mutiplier value i.e 7.5) and vid
UCpu = 800 mV + vid*12.5 mV
ergo vid = [vCore -800mV]/12.5mV
Name (_PSS, Package() {
Package(){650, 21500, 500, 300, 0x00, 0x08}, // Performance State zero (P0)
Package(){600, 14900, 500, 300, 0x01, 0x05}, // Performance State one (P1)
Package(){500, 8200, 500, 300, 0x02, 0x06} // Performance State two (P2)
}) // End of _PSS objectTake a look at the Performance States! Note the 8, 5 and 6 here. Why is it that the P-States Calculator gives me other values? How do I know which one is right, if I can't check it myself? p.s. Try not to attack people who are only trying to help you!
