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authorRafael J. Wysocki <rafael.j.wysocki@intel.com>2026-05-12 21:20:30 +0200
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2026-05-13 21:42:07 +0200
commit0e7c710478b3089cdfe8669347f77b163e836c4f (patch)
tree63de11070098dd378aa0eaa437268ed1fbea0683 /include/linux/amba/ssh:/git@git.zx2c4.com
parentDocumentation: intel_pstate: Fix description of asymmetric packing with SMT (diff)
cpufreq: intel_pstate: Use correct scaling factor on Raptor Lake-E
Raptor Lake-E has the same processor ID as Raptor Lake-S, so there is an entry in intel_hybrid_scaling_factor[] for it. It does not contain E-cores though and hybrid_get_cpu_type() returns 0 for its P-cores, so they get the default "core" scaling factor. However, the original Raptor Lake scaling factor for P-cores still needs to be used for mapping the HWP performance levels of the P-cores in Raptor Lake-E to frequency, as though they were part of a real hybrid system. To address this, update hwp_get_cpu_scaling() to return hybrid_scaling_factor, which is the P-core scaling factor retrieved from intel_hybrid_scaling_factor[], for all CPUs that are not enumerated as E-cores. Fixes: 9b18d536b124 ("cpufreq: intel_pstate: Use CPPC to get scaling factors") Link: https://lore.kernel.org/all/20260511235328.2018458-1-srinivas.pandruvada@linux.intel.com/ Reported-by: Henry Tseng <henrytseng@qnap.com> Closes: https://lore.kernel.org/linux-pm/20260508063032.3248602-1-henrytseng@qnap.com/ Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Cc: All applicable <stable@vger.kernel.org> Link: https://patch.msgid.link/4523296.ejJDZkT8p0@rafael.j.wysocki
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