[coreboot] amd_model_fxx_generate_powernow with dual-socket dual-core K8 system just handles first CPU(?)

Marc Jones marcj303 at gmail.com
Thu Oct 6 01:03:38 CEST 2011


On Wed, Oct 5, 2011 at 4:05 PM, Oskar Enoksson <enok at lysator.liu.se> wrote:
> I'm trying to make Cool'n'Quiet working on DL145G1 (dual-socket 940-pin K8
> processors) but I just get FID/VID changes on one of the CPU's (under Linux
> 2.6.37).
>
> Problem seems to be that amd_model_fxx_generate_powernow just generates two
> "Processor" objects in SSDT. I think there should be one for each core.
>
> If I add a factor 2 on row cpu/amd/model_fxx/powernow_acpi.c I get four
> Processor objects in my SSDT and everything works:
>
> -    for (index = 0; index < cmp_cap + 1; index++) {
> +    for (index = 0; index < 2*(cmp_cap + 1); index++) {
>        len += write_pstates_for_core(Pstate_num, Pstate_feq, Pstate_vid
>
> cmp_cap is correctly detected further up as 1 or 0 depending on the
> dual-core-capability (of the first CPU).
>
> Shouldn't there be a loop over all processor sockets around all this?

Seems so.


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