Re: [PATCH v2] acpi: Fix regression where _PPC is not read at boot even when ignore_ppc=0

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On Wed, Apr 29, 2009 at 03:19:28PM +0200, Thomas Renninger wrote:

> Ingo, did you do a BIOS update in between?
> The DSDT and SSDTs you added do not contain a _PPC function.
> These ACPI tables definitely do not suffer from an initial _PPC
> evaluation.

P-state tables are probably loaded from separate SSDT tables "CPU0IST" and
"CPU1IST".  You can download 'em with something like this:

# dmesg | grep IST
ACPI: SSDT BFD30566, 01FB (r1  PmRef    CPU0IST   3000 INTL 20030224)
           ^addr     ^length

# acpidump --addr 0xBFD30566 --length 0x1FB > cpu0ist
# iasl -d cpu0ist

Then paste cpu0ist.dsl somewhere.

--D
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