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backport intel_idle support for GNRD and CWF
commit eeed4bfbe9b9 intel_idle: add Clearwater Forest SoC support.
commit f557e0d1c2e6 intel_idle: add Granite Rapids Xeon D support.

dedekind added 2 commits June 10, 2025 16:06
commit f557e0d1c2e6eb6af6d4468ed2c0ee91829370e2 upstream.

Add Granite Rapids Xeon D C-states support: C1, C1E, C6, and C6P.

The C-states are basically the same as in Granite Rapids Xeon SP/AP, but
characteristics (latency, target residency) are a bit different.

Intel-SIG: commit f557e0d1c2e6 intel_idle: add Granite Rapids Xeon D support.
Backport Intel idle GNR-D support.

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Link: https://patch.msgid.link/20241107115608.52233-1-artem.bityutskiy@linux.intel.com
[ rjw: Changelog edit ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
[ Yingbao Jia: amend commit log ]
Signed-off-by: Yingbao Jia <yingbao.jia@intel.com>
commit eeed4bfbe9b96214162a09a7fbb7570fa9522ca4 upstream.

Clearwater Forest (CWF) SoC has the same C-states as Sierra Forest (SRF)
SoC.  Add CWF support by re-using the SRF C-states table.

Note: it is expected that CWF C-states will have same or very similar
characteristics as SRF C-states (latency and target residency).

However, there is a possibility that the characteristics will end up
being different enough when the CWF platform development is finished.
In that case, a separate CWF C-states table will be created and populated
with the CWF-specific characteristics (latency and target residency).

Intel-SIG: commit eeed4bfbe9b9 intel_idle: add Clearwater Forest SoC support.
Backport Intel idle CWF support.

Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Link: https://patch.msgid.link/20241203130306.1559024-1-artem.bityutskiy@linux.intel.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
[ Yingbao Jia: amend commit log ]
Signed-off-by: Yingbao Jia <yingbao.jia@intel.com>
x56Jason added a commit to openvelinux/kernel-intel that referenced this pull request Nov 10, 2025
…x-intel-idle-support-gnrd-cwf' into intel-6.6-velinux

backport intel_idle support for GNRD and CWF

commit eeed4bfbe9b9 intel_idle: add Clearwater Forest SoC support.
commit f557e0d1c2e6 intel_idle: add Granite Rapids Xeon D support.
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2 participants