From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mxout70.expurgate.net (mxout70.expurgate.net [194.37.255.70]) (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 7A6CD371871 for ; Fri, 6 Mar 2026 08:27:52 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=194.37.255.70 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772785674; cv=none; b=LRN2hT6ZbKt1BaGpikVjzB4S0VI/3z3StigDIVkLB49Xb/avBOI2AAluCBiufIu2wYg0nQhRjg0eLXglRlYHqzg5IVvaTiX3Eq5VNz17XInmrkGdikBe/755LLCvXxe+X6c5UpX7UO4mHPWNtckTzwHCxiReIjBI3O+QPFEBROU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772785674; c=relaxed/simple; bh=WZanKgZivj3Md7uH1DiBhwaMwJGaIzHNILjWqGpE624=; h=From:Subject:Date:Message-ID:MIME-Version:Content-Type:To:Cc; b=KL/L9znaoaxRVzfUwJ9ms6idz05l3V7F8shvDAxcN2JrqxXqkrdrjKfi+fHyJQ8h43ref1MGbkZf6g5MoRwlMM3DGvYUE76SfrGpvksez9fUb4hobolpn2ekgiX12PqmuW3loUArlCjDIzvnuZVWpPWXma+dlVF0domCX0nWCYU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=dev.tdt.de; spf=pass smtp.mailfrom=dev.tdt.de; dkim=temperror (0-bit key) header.d=dev.tdt.de header.i=@dev.tdt.de header.b=N6gQ0+Z/; arc=none smtp.client-ip=194.37.255.70 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=dev.tdt.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=dev.tdt.de Authentication-Results: smtp.subspace.kernel.org; dkim=temperror (0-bit key) header.d=dev.tdt.de header.i=@dev.tdt.de header.b="N6gQ0+Z/" Received: from [194.37.255.9] (helo=mxout.expurgate.net) by relay.expurgate.net with smtp (Exim 4.92) (envelope-from ) id 1vyQX2-0024Ge-W1; Fri, 06 Mar 2026 09:27:37 +0100 Received: from [195.243.126.94] (helo=securemail.tdt.de) by relay.expurgate.net with esmtps (TLS1.3:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1vyQX1-008cCv-Rm; Fri, 06 Mar 2026 09:27:35 +0100 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=dev.tdt.de; s=z1-selector1; t=1772785655; bh=MbJSwSGFbrLNcrpNoa5wXXt/vYsnrMNhsm98f+zely4=; h=From:Subject:Date:To:Cc:From; b=N6gQ0+Z/EnpaHo9yK6bZy0LDpZ+8k7aoeb+dQuVF+POl0Dv06rtcxQdzGonaNBDsv dfbLu1XAlXFnD6X20wEok3Y2uMFPy+cdbV91aN9cbJmZmEnWX++sqSVjp6O0ZE1DBo 4Lny/J1QMQpP5JMH2x8z2fZfwGChjPtJEbGkVINf1RqEjSiWI+Q5HlBGrBwWxDhJvI ygLxrAB2WquHAiwf8rwmR2IFWfLYmaHbDpQyTKWQHqV0X2BaoOArlK7abJch/dzIRI +cRqYNGHmAM3rMXUzDxkenO3H3mKNPSwcR36KL3AI6vkR8CBWd82LJ+SCs+yFkWcay vvjQ3c+mlW0kg== Received: from securemail.tdt.de (localhost [127.0.0.1]) by securemail.tdt.de (Postfix) with ESMTP id 463BF240041; Fri, 6 Mar 2026 09:27:35 +0100 (CET) Received: from mail.dev.tdt.de (unknown [10.2.4.42]) by securemail.tdt.de (Postfix) with ESMTP id 2FCBC240036; Fri, 6 Mar 2026 09:27:35 +0100 (CET) Received: from [127.0.1.1] (unknown [10.2.3.19]) by mail.dev.tdt.de (Postfix) with ESMTPSA id EBC3822F1D; Fri, 6 Mar 2026 09:27:34 +0100 (CET) From: Martin Schiller Subject: [PATCH 0/2] x86/cpu: P-state support for Lightning Mountain Date: Fri, 06 Mar 2026 09:27:23 +0100 Message-ID: <20260306-cpufreq_lgm-v1-0-47f104aed7c2@dev.tdt.de> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-B4-Tracking: v=1; b=H4sIAOuPqmkC/6tWKk4tykwtVrJSqFYqSi3LLM7MzwNyDHUUlJIzE vPSU3UzU4B8JSMDIzMDYwMz3eSC0rSi1ML4nPRc3WQDIwuD1DRLC8tkYyWgjoKi1LTMCrBp0bG 1tQDp9jZ2XQAAAA== X-Change-ID: 20260306-cpufreq_lgm-c0280ef989c3 To: Srinivas Pandruvada , Len Brown , "Rafael J. Wysocki" , Viresh Kumar , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" Cc: linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org, Florian Eckert , Martin Schiller X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1772785654; l=783; i=ms@dev.tdt.de; s=20260220; h=from:subject:message-id; bh=WZanKgZivj3Md7uH1DiBhwaMwJGaIzHNILjWqGpE624=; b=AD6Q65Rj6Yeg7fHwhi7chWYndJj90ubzkySyRi/aJxi1fbwIJ8kI0zORg4mngipH6Of71Q2Gw yD4ItJo+xToDx9pboBmz8jWd8tOmUNYFWlpTR6g+j6Wfavvq/VP0gzC X-Developer-Key: i=ms@dev.tdt.de; a=ed25519; pk=MAojd7D5IafMnqCYSFC7hY/u/jppX58CLIEhsEsSOYE= X-purgate-type: clean X-purgate-ID: 151534::1772785656-CDF13836-ACE5B11B/0/0 X-purgate: clean This patch set contains 2 commits to get P-state support for Intel / MaxLinear Lightning Mountain. The first adds the needed code to the intel_pstate driver. The second adds a workaround to the x86/cpu subsystem to enable EIST on all cpus. Signed-off-by: Martin Schiller --- Martin Schiller (2): cpufreq: intel_pstate: Add Lightning Mountain support x86/cpu/intel: Add EIST workaround for Lightning Mountain. arch/x86/kernel/cpu/intel.c | 23 ++++++++++++++++ drivers/cpufreq/intel_pstate.c | 62 ++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 85 insertions(+) --- base-commit: 05f7e89ab9731565d8a62e3b5d1ec206485eeb0b change-id: 20260306-cpufreq_lgm-c0280ef989c3 Best regards, -- Martin Schiller