Messages in this thread | | | Date | Fri, 6 Feb 2004 09:28:16 -0800 | From | Tony Lindgren <> | Subject | Re: [PATCH] powernow-k8 max speed sanity check |
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* Pavel Machek <pavel@ucw.cz> [040206 04:57]: > > > But I meant calculating all the valid values inbetween min and max without > > relying on getting those values from the BIOS. > > I do not think values can be calculated by some simple > formula. voltage/frequency relations may be quite complex.. > > > I guess the code already does that to figure out how many steps are needed > > to change between min and max? > > Well, but it steps voltage first, then frequency [going up] or > frequency first, voltage then [going down]; middle values used by the > transitions are not too good if you want to be power-efficient.
OK, I see. Then your idea of using a lookup table for blacklisted BIOSes makes good sense.
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