From patchwork Mon Jan 11 22:51:05 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ben Widawsky X-Patchwork-Id: 361268 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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI, 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 86910C433E6 for ; Tue, 12 Jan 2021 00:29:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5933B22CB8 for ; Tue, 12 Jan 2021 00:29:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2405551AbhALAZ6 (ORCPT ); Mon, 11 Jan 2021 19:25:58 -0500 Received: from mga01.intel.com ([192.55.52.88]:57927 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2390866AbhAKXBx (ORCPT ); Mon, 11 Jan 2021 18:01:53 -0500 IronPort-SDR: HSmW6i3BsvECeDch/C8zFNFd76eVxaTxWbWG2Tj7f6hICuXCbgOpmPTFDW1y/da8zyGq887mQz POu8rezjVT8Q== X-IronPort-AV: E=McAfee;i="6000,8403,9861"; a="196564870" X-IronPort-AV: E=Sophos;i="5.79,339,1602572400"; d="scan'208";a="196564870" Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Jan 2021 15:01:11 -0800 IronPort-SDR: lo/WM47qQTl/7W1Syc3ZdWKcmDerGcQgXs1ZhEzqu8+gOlY6A0UCMNM+r6R5R4Ktt8qG7t0QgD JG593FoDxs2g== X-IronPort-AV: E=Sophos;i="5.79,339,1602572400"; d="scan'208";a="381181158" Received: from yyang31-mobl.amr.corp.intel.com (HELO intel.com) ([10.252.142.71]) by orsmga008-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Jan 2021 15:01:11 -0800 Received: from orsmsx612.amr.corp.intel.com (10.22.229.25) by fmsmsx612.amr.corp.intel.com (10.18.126.92) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1713.5 via Mailbox Transport; Mon, 11 Jan 2021 14:51:30 -0800 Received: from orsmsx609.amr.corp.intel.com (10.22.229.22) by ORSMSX612.amr.corp.intel.com (10.22.229.25) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1713.5; Mon, 11 Jan 2021 14:51:29 -0800 Received: from fmsmga008.fm.intel.com (10.253.24.58) by orsmsx609.amr.corp.intel.com (10.22.229.22) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.1713.5 via Frontend Transport; Mon, 11 Jan 2021 14:51:29 -0800 IronPort-SDR: uTBBEhhmSLxLFQjal18IP880OYmMe3m1/FkDWbicM7mn24Bg5Ws/jIhIbhdm17N83GifCnxLzF ABFNGsGA//qw== X-IronPort-AV: E=Sophos;i="5.79,339,1602572400"; d="scan'208";a="352777927" Received: from yyang31-mobl.amr.corp.intel.com (HELO bwidawsk-mobl5.local) ([10.252.142.71]) by fmsmga008-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 11 Jan 2021 14:51:28 -0800 From: Ben Widawsky To: CC: Ben Widawsky , , , "linux-acpi@vger.kernel.org, Ira Weiny" , Dan Williams , Vishal Verma , "Kelley, Sean V" , Rafael Wysocki , Bjorn Helgaas , Jonathan Cameron , "Jon Masters" , Chris Browy , "Randy Dunlap" , Christoph Hellwig , Subject: [RFC PATCH v3 01/16] docs: cxl: Add basic documentation Date: Mon, 11 Jan 2021 14:51:05 -0800 Message-ID: <20210111225121.820014-2-ben.widawsky@intel.com> X-Mailer: git-send-email 2.30.0 In-Reply-To: <20210111225121.820014-1-ben.widawsky@intel.com> References: <20210111225121.820014-1-ben.widawsky@intel.com> X-MS-Exchange-Organization-Network-Message-Id: 95138fcc-c0ba-4561-57d6-08d8b6836f6f X-MS-Exchange-Organization-AVStamp-Enterprise: 1.0 X-MS-Exchange-Organization-SCL: -1 X-MS-Exchange-Organization-AuthSource: ORSMSX609.amr.corp.intel.com X-MS-Exchange-Organization-AuthAs: Anonymous X-MS-Exchange-Transport-EndToEndLatency: 00:00:00.9076262 X-MS-Exchange-Processed-By-BccFoldering: 15.01.1713.001 MIME-Version: 1.0 X-TUID: O6WLo6jjJ4aL Precedence: bulk List-ID: X-Mailing-List: linux-acpi@vger.kernel.org This starts a new cxl directory because CXL is a new bus and it is expected that the documentation will grow large over time. Currently only memory devices are documented as they are all that's supported. Signed-off-by: Ben Widawsky --- Documentation/cxl/index.rst | 12 ++++++++++++ Documentation/cxl/memory-devices.rst | 15 +++++++++++++++ Documentation/index.rst | 1 + 3 files changed, 28 insertions(+) create mode 100644 Documentation/cxl/index.rst create mode 100644 Documentation/cxl/memory-devices.rst diff --git a/Documentation/cxl/index.rst b/Documentation/cxl/index.rst new file mode 100644 index 000000000000..036e49553542 --- /dev/null +++ b/Documentation/cxl/index.rst @@ -0,0 +1,12 @@ +.. SPDX-License-Identifier: GPL-2.0 + +==================== +Compute Express Link +==================== + +.. toctree:: + :maxdepth: 1 + + memory-devices + +.. only:: subproject and html diff --git a/Documentation/cxl/memory-devices.rst b/Documentation/cxl/memory-devices.rst new file mode 100644 index 000000000000..aa4262280c67 --- /dev/null +++ b/Documentation/cxl/memory-devices.rst @@ -0,0 +1,15 @@ +.. SPDX-License-Identifier: GPL-2.0 +.. include:: + +=================================== +Compute Express Link Memory Devices +=================================== + +A Compute Express Link Memory Device is a CXL component that implements the +CXL.mem protocol. It contains some amount of volatile memory, persistent memory, +or both. + +Driver Infrastructure +===================== + +This sections covers the driver infrastructure for a CXL memory device. diff --git a/Documentation/index.rst b/Documentation/index.rst index 5888e8a7272f..7e5ab77264e9 100644 --- a/Documentation/index.rst +++ b/Documentation/index.rst @@ -137,6 +137,7 @@ needed). misc-devices/index scheduler/index mhi/index + cxl/index Architecture-agnostic documentation -----------------------------------