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> The driver uses built-in tables for all the operating points of known > Pentium M processors, derived from the Table 5 in the Intel Pentium M > datasheet (25261202.pdf). The tables derived from the datasheet exactly > match the tables in ACPI on my 1.3GHz Pentium M IBM ThinkPad X31. > > Because this driver is using undocumented registers, it is careful to > only apply to CPUs which I'm confident that it will work with. > Therefore, not only does it look for the EST feature bit, but will only > work on Family 6, Model 9, Stepping 5 processors. It also needs an > exact match on model name when choosing which operating point table to > use. For what it's worth (maybe not much) I have a Vaio U101 which uses the "Celeron 600A" processor. This is a sort of bastard-child of the Pentium M family -- it's not listed on their web site anywhere that I know of -- certainly not in the pdf documents -- and it doesn't have any SpeedStep ability at all. (It's apparently locked 600Mhz and the lowest voltage. I have't tried your patch to see what happens -- I can if you want.) Anyway, I mention it because it *does* report itself as Family 6, Model 9, Stepping 5. Model name is "Mobile Intel(R) Celeron(R) processor 600MHz". -- Matthew Miller mattdm@mattdm.org <http://www.mattdm.org/> Boston University Linux ------> <http://linux.bu.edu/> - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | |||||||||
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