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[209.132.180.67]) by mx.google.com with ESMTP id p17si3279185pfk.275.2018.12.07.07.33.15; Fri, 07 Dec 2018 07:33:31 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726074AbeLGPcZ (ORCPT + 99 others); Fri, 7 Dec 2018 10:32:25 -0500 Received: from mx3.molgen.mpg.de ([141.14.17.11]:47399 "EHLO mx1.molgen.mpg.de" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1726027AbeLGPcZ (ORCPT ); Fri, 7 Dec 2018 10:32:25 -0500 Received: from machmal.molgen.mpg.de (machmal.molgen.mpg.de [141.14.31.9]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: pmenzel) by mx.molgen.mpg.de (Postfix) with ESMTPSA id 14648201353427; Fri, 7 Dec 2018 16:32:22 +0100 (CET) To: linux-pm@vger.kernel.org From: Paul Menzel Subject: Recommended driver for current AMD processors Cc: Linux Kernel Mailing List Message-ID: <674a80a7-e956-ef2d-3095-41473851a402@molgen.mpg.de> Date: Fri, 7 Dec 2018 16:32:21 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1 MIME-Version: 1.0 Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha-256; boundary="------------ms060803080000010305080403" Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This is a cryptographically signed message in MIME format. --------------ms060803080000010305080403 Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: quoted-printable Dear Linux folks, What driver is recommended for current AMD Ryzen based processors like *AMD Ryzen 5 PRO 1500 Quad-Core Processor* or *AMD EPYC 7601 32-Core Processor*? Only from the acpi-cpufreq Kconfig description, I assume, that that driver should be used. > config X86_ACPI_CPUFREQ > tristate "ACPI Processor P-States driver" > depends on ACPI_PROCESSOR > help > This driver adds a CPUFreq driver which utilizes the ACPI > Processor Performance States. > This driver also supports Intel Enhanced Speedstep and newer > AMD CPUs. >=20 > To compile this driver as a module, choose M here: the > module will be called acpi-cpufreq. >=20 > For details, take a look at . >=20 > If in doubt, say N. Would a =E2=80=9Cnative=E2=80=9D driver like Intel=E2=80=99s P state driv= er also give better results? Do you know if AMD is working on something like that? 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