From patchwork Tue Apr 23 16:28:51 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Changbin Du X-Patchwork-Id: 10913405 X-Patchwork-Delegate: bhelgaas@google.com Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id C90E7112C for ; Tue, 23 Apr 2019 16:34:00 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id BA883286A0 for ; Tue, 23 Apr 2019 16:34:00 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id AECEC286BD; Tue, 23 Apr 2019 16:34:00 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FROM,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 5EF73286AC for ; Tue, 23 Apr 2019 16:34:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728863AbfDWQdz (ORCPT ); Tue, 23 Apr 2019 12:33:55 -0400 Received: from mail-pg1-f194.google.com ([209.85.215.194]:35164 "EHLO mail-pg1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728569AbfDWQdy (ORCPT ); Tue, 23 Apr 2019 12:33:54 -0400 Received: by mail-pg1-f194.google.com with SMTP id g8so7886566pgf.2; Tue, 23 Apr 2019 09:33:54 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=4xTrnLrO59umJmSOvr4epn2M5miwC5OKlGYVuirCoC0=; b=IM3hq3uOs4nXIMqaVCPkR+wmGVqnUYUAe2kfzxLiWVFI16Po9dzRGA2HEL3HTkFS0Y yIRE1YfFsBZWwKLtF7pxM2H6HTLfiI0ecsylitlE0QrTK0PBvM1CSbxFDnOM+JvHatdf SV28RxH4G2Z5bsYXMGcsUAbc1qqgAXv3yZdORTxV4D7NP97bqoQed6Qxa/UqCR2ZMR2z 0irvdt100pc8mJM//h6u3lDSti3tCpE7DKg9Kyt6yiWkAqvOQpAVP9/ak2hcHY7RB9YV MOplj8bdzATistWqkFYsXOssi0OqMMCXspkn+JIXz2agpujc4ykwxK0apEBNF4k1xB9W m0zw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=4xTrnLrO59umJmSOvr4epn2M5miwC5OKlGYVuirCoC0=; b=Pcg9C4qsyOqL20EsFGBMqRzJaN+uG1362z9tStD8xgVLHrV99w2xJ7yhVlD+jupYru vaR3ZoyZS3wxSITbbkcNez0KehePtLpZTAojV/Hp2ec0n31vkvVKERnmMijFciilIhP9 p5b4SmVUpJRIC4+fbAPT+0H4OWoVSnqI2SSZFEz6Eyosy7DQxlrFTVfk8OBFqoONST5/ PLbhJVwQDuS2k39aSMo5qckcVjs9mFjXBZrLxKvi1Mz6Ry+Gu/ry/z54OIKvUFNo6Hyi ZDl2mzqqEx8mTNQoSxsDZ4LypbTLzGMSPCu7gafcOgBQ/eWiM3hnL9SPOTJaKllR4qZW j45Q== X-Gm-Message-State: APjAAAWfos4yVJQZkZ+OQdvUTA9wF+OeIMA9TSMIhVQgxIRSfKcudlfZ 1k3WZWSuBHzUnqF6Rkm+d2E= X-Google-Smtp-Source: APXvYqzCN4JlnPcIBBixsCPKXX8eA6Ikw06oVo5Ar9KruZby+Z0pOXPDt6n8BU3DR0OKk9a/I0AbTA== X-Received: by 2002:a65:6202:: with SMTP id d2mr25646108pgv.176.1556037233885; Tue, 23 Apr 2019 09:33:53 -0700 (PDT) Received: from localhost.localdomain ([104.238.181.70]) by smtp.gmail.com with ESMTPSA id v1sm24364801pff.81.2019.04.23.09.33.46 (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Tue, 23 Apr 2019 09:33:53 -0700 (PDT) From: Changbin Du To: Jonathan Corbet Cc: Bjorn Helgaas , rjw@rjwysocki.net, linux-pci@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, tglx@linutronix.de, mingo@redhat.com, x86@kernel.org, fenghua.yu@intel.com, linuxppc-dev@lists.ozlabs.org, linux-acpi@vger.kernel.org, linux-gpio@vger.kernel.org, mchehab+samsung@kernel.org, Changbin Du Subject: [PATCH v4 22/63] Documentation: ACPI: move lpit.txt to firmware-guide/acpi and convert to reST Date: Wed, 24 Apr 2019 00:28:51 +0800 Message-Id: <20190423162932.21428-23-changbin.du@gmail.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190423162932.21428-1-changbin.du@gmail.com> References: <20190423162932.21428-1-changbin.du@gmail.com> MIME-Version: 1.0 Sender: linux-pci-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-pci@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP This converts the plain text documentation to reStructuredText format and add it to Sphinx TOC tree. No essential content change. Signed-off-by: Changbin Du Reviewed-by: Mauro Carvalho Chehab --- Documentation/firmware-guide/acpi/index.rst | 1 + .../lpit.txt => firmware-guide/acpi/lpit.rst} | 18 +++++++++++++----- 2 files changed, 14 insertions(+), 5 deletions(-) rename Documentation/{acpi/lpit.txt => firmware-guide/acpi/lpit.rst} (68%) diff --git a/Documentation/firmware-guide/acpi/index.rst b/Documentation/firmware-guide/acpi/index.rst index fca854f017d8..0e60f4b7129a 100644 --- a/Documentation/firmware-guide/acpi/index.rst +++ b/Documentation/firmware-guide/acpi/index.rst @@ -22,3 +22,4 @@ ACPI Support gpio-properties i2c-muxes acpi-lid + lpit diff --git a/Documentation/acpi/lpit.txt b/Documentation/firmware-guide/acpi/lpit.rst similarity index 68% rename from Documentation/acpi/lpit.txt rename to Documentation/firmware-guide/acpi/lpit.rst index b426398d2e97..aca928fab027 100644 --- a/Documentation/acpi/lpit.txt +++ b/Documentation/firmware-guide/acpi/lpit.rst @@ -1,3 +1,9 @@ +.. SPDX-License-Identifier: GPL-2.0 + +=========================== +Low Power Idle Table (LPIT) +=========================== + To enumerate platform Low Power Idle states, Intel platforms are using “Low Power Idle Table” (LPIT). More details about this table can be downloaded from: @@ -8,13 +14,15 @@ Residencies for each low power state can be read via FFH On platforms supporting S0ix sleep states, there can be two types of residencies: -- CPU PKG C10 (Read via FFH interface) -- Platform Controller Hub (PCH) SLP_S0 (Read via memory mapped interface) + + - CPU PKG C10 (Read via FFH interface) + - Platform Controller Hub (PCH) SLP_S0 (Read via memory mapped interface) The following attributes are added dynamically to the cpuidle -sysfs attribute group: - /sys/devices/system/cpu/cpuidle/low_power_idle_cpu_residency_us - /sys/devices/system/cpu/cpuidle/low_power_idle_system_residency_us +sysfs attribute group:: + + /sys/devices/system/cpu/cpuidle/low_power_idle_cpu_residency_us + /sys/devices/system/cpu/cpuidle/low_power_idle_system_residency_us The "low_power_idle_cpu_residency_us" attribute shows time spent by the CPU package in PKG C10