ACK: [SRU][Q/R][PATCH 0/3] add pmc c6 support of Arrow Lake

[You-Sheng Yang]

Acked-By: You-Sheng Yang <vicamo.yang at canonical.com>

On Fri, Jan 9, 2026 at 12:21 PM Aaron Ma <aaron.ma at canonical.com> wrote:
>
> BugLink: https://bugs.launchpad.net/bugs/2137615
>
> [Impact]
> The error is shown in dmesg:
> kernel: intel_pmc_core INT33A1:00: pmc_core: couldn't get DMU telem endpoint -6
> c6 status in not shown in debugfs.
>
> [Fix]
> Add Arrow Lake PMU GUIDs in pmc_core:
> a32f7d76e3cd7 platform/x86:intel/pmc: Add DMU GUID to Arrow Lake U/H
> 3b603955f2423 platform/x86:intel/pmc: Add support for multiple DMU GUIDs
> 644ab3bc98ee3 platform/x86:intel/pmc: Update Arrow Lake telemetry GUID
>
> [Test]
> The pmc error is not shown in dmesg.
> # cat /sys/kernel/debug/pmc_core/die_c6_us_show
> 16476381
>
> [Where problems could occur]
> It may break intel pmc support.
>
> Noble 6.8 kernel got some conflicts and need many commits and revert.
> So SRU for questing, oem-6.17 and resolute.
>
> Xi Pardee (3):
>   platform/x86:intel/pmc: Update Arrow Lake telemetry GUID
>   platform/x86:intel/pmc: Add support for multiple DMU GUIDs
>   platform/x86:intel/pmc: Add DMU GUID to Arrow Lake U/H
>
>  drivers/platform/x86/intel/pmc/arl.c  |  6 ++++--
>  drivers/platform/x86/intel/pmc/core.c | 22 ++++++++++++++++++----
>  drivers/platform/x86/intel/pmc/core.h |  9 +++++----
>  drivers/platform/x86/intel/pmc/mtl.c  |  3 ++-
>  4 files changed, 29 insertions(+), 11 deletions(-)
>
> --
> 2.43.0
>
>
> --
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-- 
Regards,
You-Sheng Yang