From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 7B5E4346AFB for ; Mon, 1 Jun 2026 11:02:07 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780311728; cv=none; b=s6Kih/j/Qu9g87/EOLAaJ9DK7SgBkw3l3E9v/csUsIKZxXJm5r4EZ2JWbmdQThHoS1YCKsdI8INRglQ/yM+Vcbj56QRZ0Nk000IphawXM2a18xnvXUGpWCG5E7/UNYoao4sh+DMxY8Fq99Lehyp7QAVoQNCUCuU6J9TLjDSOGeU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780311728; c=relaxed/simple; bh=a/V/ZqsOru2Y9J+du0DU8mxrAJPAFgnbdOWSA1IOYQs=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=CLwnFi6kjRH1CW7p7smldigJg1s0KBbZF6ZIbEplHIm3IUh04IJtGFUjSAizcSsAJmx77VQ+jBDLlXwQpo8UmHnmWznQmtLghiEulHrldtUE3EePiBAOeGlOsyF6ZKoOxoyq8fyWYmkmqB4n1opN2zagVp7maMdvyX0+9dZnUJo= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=oyfpuF72; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="oyfpuF72" Received: by smtp.kernel.org (Postfix) with ESMTPSA id D59D01F00899; Mon, 1 Jun 2026 11:02:06 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1780311727; bh=v7hlWWnWKATPA2BFRktGbl7qtTgWhJ7ZNc0XU1ZwKic=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=oyfpuF72BVq+MWpnkZnAxryEi4GzTa4wLDS5hiCABoD2UbHZeLBPcsaX9LRJBJ9cd V6daTTYAgmnlrNdfNrFXTI36DF+rsm5H/x7k4+dbaSl04vz4PWE4ZBxAwvuVZL6f3h t1TZ4Uv8Pfv+jSmQO050APDweNzHZv7eoxblUwLXbglIe0yMy9QvOq8HaJpYPs8s2I FarGqTjGpuHO9q2lFCM8NiZVpQUrdzsdj/e9i+lu6rJEJWqJwbhu867V42rOG2f/3O 5Ql8tVcXqGio51coKGNEJD+lHGYvWAOPby9OgJYdahbmzVM+VC2+0hp70Cp/MPFKXt icGMMuYnY3eNw== From: Sasha Levin To: stable@vger.kernel.org Cc: "Rafael J. Wysocki" , Henry Tseng , Sasha Levin Subject: [PATCH 6.18.y 2/2] cpufreq: intel_pstate: Use correct scaling factor on Raptor Lake-E Date: Mon, 1 Jun 2026 07:02:04 -0400 Message-ID: <20260601110204.439565-2-sashal@kernel.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260601110204.439565-1-sashal@kernel.org> References: <2026052846-jasmine-recess-d8cc@gregkh> <20260601110204.439565-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: "Rafael J. Wysocki" [ Upstream commit 0e7c710478b3089cdfe8669347f77b163e836c4f ] 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 Closes: https://lore.kernel.org/linux-pm/20260508063032.3248602-1-henrytseng@qnap.com/ Signed-off-by: Rafael J. Wysocki Cc: All applicable Link: https://patch.msgid.link/4523296.ejJDZkT8p0@rafael.j.wysocki Signed-off-by: Sasha Levin --- drivers/cpufreq/intel_pstate.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/cpufreq/intel_pstate.c b/drivers/cpufreq/intel_pstate.c index 6e1a793408dee..7fb6412b5f193 100644 --- a/drivers/cpufreq/intel_pstate.c +++ b/drivers/cpufreq/intel_pstate.c @@ -2308,7 +2308,7 @@ static int hwp_get_cpu_scaling(int cpu) * Return the hybrid scaling factor for P-cores and use the * default core scaling for E-cores. */ - if (hybrid_get_cpu_type(cpu) == INTEL_CPU_TYPE_CORE) + if (hybrid_get_cpu_type(cpu) != INTEL_CPU_TYPE_ATOM) return hybrid_scaling_factor; return core_get_scaling(); -- 2.53.0