From patchwork Mon Feb 17 16:20:33 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mauro Carvalho Chehab X-Patchwork-Id: 212831 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-10.1 required=3.0 tests=DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id D23E7C34031 for ; Mon, 17 Feb 2020 16:20:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id A70032465D for ; Mon, 17 Feb 2020 16:20:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1581956451; bh=DhvH2HDDBA6dOWvJaW6zuGlf7URyPdl7Iyg01bc1q+A=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=B0f51FHMbtb76aCmIa1k+OHxuzyl8JTrnXJ6bKyon2tS1QxFtqOJ3UadUVhDN0PN2 dbbvtDmv0A7OXODuNjTNfjq2aU1VvEgYostrApb74NP+j0rmlBHd9fJVHJOV9py6Jd tXgRbeOIIslhIiTeXyEjngACE+5VydpsvX6y/PZo= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728764AbgBQQUs (ORCPT ); Mon, 17 Feb 2020 11:20:48 -0500 Received: from bombadil.infradead.org ([198.137.202.133]:54976 "EHLO bombadil.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728543AbgBQQUr (ORCPT ); Mon, 17 Feb 2020 11:20:47 -0500 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20170209; h=Sender:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description; bh=WOmy0+QMckhdBzIIN5N8aTIEyoanTMoTBxTpT7pGGt4=; b=huK7I9hhDe7HhUFZwPp1c1UBu2 D0Lm6ATDem2jUeAtxLA0b89zENifzaqGIplTVQQQPIRMCcT+K2BBQJ4Y7lQNOXQf4NNlX7FKWslRY +3VtsowHd/VXi0l+unvLai/D8/m2lyx1PzfKn4uKXwVoCy/VsUl50MUASDDYOPeovvKhp49F90a3O KoPMhg1/PksC8BqRov01NEVjjUjJHEADSS4l5glw/TpqUTtaTXmnG+WKu+OK7kGdwtqB8GQ0v2xPi QuNNOcRb0PzZMItizAGQNxR6oZEzvqfxO/Ct2lTcR9nkd+pIDwatkn4p0S0E5y6gxRicfswo3kmDV 5/YG6XjQ==; Received: from ip-109-41-129-189.web.vodafone.de ([109.41.129.189] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtpsa (Exim 4.92.3 #3 (Red Hat Linux)) id 1j3j8Y-00042F-8I; Mon, 17 Feb 2020 16:20:46 +0000 Received: from mchehab by bombadil.infradead.org with local (Exim 4.92.3) (envelope-from ) id 1j3j8W-000fpl-9P; Mon, 17 Feb 2020 17:20:44 +0100 From: Mauro Carvalho Chehab To: Linux Doc Mailing List Cc: Mauro Carvalho Chehab , Jonathan Corbet , "Rafael J. Wysocki" , Viresh Kumar , linux-pm@vger.kernel.org Subject: [PATCH v2 15/24] docs: cpu-freq: convert amd-powernow.txt to ReST Date: Mon, 17 Feb 2020 17:20:33 +0100 Message-Id: <63e8b6ba6110901079916cbbfb804ca100eab46d.1581956285.git.mchehab+huawei@kernel.org> X-Mailer: git-send-email 2.24.1 In-Reply-To: References: MIME-Version: 1.0 Sender: linux-pm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pm@vger.kernel.org - Add a SPDX header; - Add a document title, based on the original contents of cpu-freq/index.txt; - some whitespace fixes and new line breaks; - Add it to cpu-freq/index.rst. Signed-off-by: Mauro Carvalho Chehab --- .../cpu-freq/{amd-powernow.txt => amd-powernow.rst} | 12 ++++++++++-- Documentation/cpu-freq/index.rst | 2 ++ 2 files changed, 12 insertions(+), 2 deletions(-) rename Documentation/cpu-freq/{amd-powernow.txt => amd-powernow.rst} (89%) diff --git a/Documentation/cpu-freq/amd-powernow.txt b/Documentation/cpu-freq/amd-powernow.rst similarity index 89% rename from Documentation/cpu-freq/amd-powernow.txt rename to Documentation/cpu-freq/amd-powernow.rst index 254da155fa47..4a53612b62a2 100644 --- a/Documentation/cpu-freq/amd-powernow.txt +++ b/Documentation/cpu-freq/amd-powernow.rst @@ -1,3 +1,9 @@ +.. SPDX-License-Identifier: GPL-2.0 + +============================= +AMD PowerNow Driver Specifics +============================= + PowerNow! and Cool'n'Quiet are AMD names for frequency management capabilities in AMD processors. As the hardware @@ -23,16 +29,18 @@ not supply these tables. 7th Generation: powernow-k7: Athlon, Duron, Geode. 8th Generation: powernow-k8: Athlon, Athlon 64, Opteron, Sempron. + Documentation on this functionality in 8th generation processors is available in the "BIOS and Kernel Developer's Guide", publication -26094, in chapter 9, available for download from www.amd.com. +26094, in chapter 9, available for download from www.amd.com. BIOS supplied data, for powernow-k7 and for powernow-k8, may be from either the PSB table or from ACPI objects. The ACPI support is only available if the kernel config sets CONFIG_ACPI_PROCESSOR. The powernow-k8 driver will attempt to use ACPI if so configured, and fall back to PST if that fails. + The powernow-k7 driver will try to use the PSB support first, and fall back to ACPI if the PSB support fails. A module parameter, -acpi_force, is provided to force ACPI support to be used instead +acpi_force, is provided to force ACPI support to be used instead of PSB support. diff --git a/Documentation/cpu-freq/index.rst b/Documentation/cpu-freq/index.rst index 1bff3dfddd23..6f7c2a024447 100644 --- a/Documentation/cpu-freq/index.rst +++ b/Documentation/cpu-freq/index.rst @@ -14,6 +14,8 @@ Author: Dominik Brodowski .. toctree:: :maxdepth: 1 + amd-powernow + Mailing List ------------ There is a CPU frequency changing CVS commit and general list where