From: bugzilla-daemon@kernel.org
To: linux-pm@vger.kernel.org
Subject: [Bug 218171] amd-pstate not loading on zen2 threadripper 3960x (trx40
Date: Wed, 22 Nov 2023 09:04:52 +0000 [thread overview]
Message-ID: <bug-218171-137361-l6lBllBeMd@https.bugzilla.kernel.org/> (raw)
In-Reply-To: <bug-218171-137361@https.bugzilla.kernel.org/>
https://bugzilla.kernel.org/show_bug.cgi?id=218171
--- Comment #10 from Gino Badouri (badouri.g@gmail.com) ---
Hi Perry,
Unfortunately they're not present:
=============norminal freq===============================
cat: '/sys/devices/system/cpu/cpu*/acpi_cppc/nominal_freq': No such file or
directory
=============norminal perf===============================
cat: '/sys/devices/system/cpu/cpu*/acpi_cppc/nominal_perf': No such file or
directory
=============highest_perf perf===============================
cat: '/sys/devices/system/cpu/cpu*/acpi_cppc/highest_perf': No such file or
directory
=============lowest_nonlinear_perf perf===============================
cat: '/sys/devices/system/cpu/cpu*/acpi_cppc/lowest_nonlinear_perf': No such
file or directory
=============lowest perf===============================
cat: '/sys/devices/system/cpu/cpu*/acpi_cppc/lowest_perf': No such file or
directory
But I guess this is expected as the driver still does not load with linux
kernel 6.7.0 rc2:
[ 0.640246] amd_pstate: the _CPC object is not present in SBIOS or ACPI
disabled
But if you look in ssdt7.dsl from the attachment I just posted, you can clearly
see the _CPC entries are present.
They look like:
Name (_CPC, Package (0x17) // _CPC: Continuous Performance Control
{
0x17,
0x03,
....
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next prev parent reply other threads:[~2023-11-22 9:04 UTC|newest]
Thread overview: 49+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-11-21 9:51 [Bug 218171] New: amd-pstate not loading on zen2 threadripper 3960x (trx40 bugzilla-daemon
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