From patchwork Wed Dec 9 00:24:05 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ben Widawsky X-Patchwork-Id: 340402 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=-16.7 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 DBABEC2BBCA for ; Wed, 9 Dec 2020 00:30:09 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id B1CB923A7C for ; Wed, 9 Dec 2020 00:30:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1731768AbgLIAZK (ORCPT ); Tue, 8 Dec 2020 19:25:10 -0500 Received: from mga09.intel.com ([134.134.136.24]:16959 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731757AbgLIAZD (ORCPT ); Tue, 8 Dec 2020 19:25:03 -0500 IronPort-SDR: bhUgg94QhgXeOTVRDoZFvmXIos5+/PgJ536s9QjXYeSG7/LoWaqUyuBBss4uiho18lvUNqJJPq m8rqIRZCWadA== X-IronPort-AV: E=McAfee;i="6000,8403,9829"; a="174142063" X-IronPort-AV: E=Sophos;i="5.78,404,1599548400"; d="scan'208";a="174142063" Received: from orsmga001.jf.intel.com ([10.7.209.18]) by orsmga102.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Dec 2020 16:24:21 -0800 IronPort-SDR: Eehe0MGhWXN6iNP/dru4+cXgM/7QW+wcNxFgnXNxXt6wBD/j7WgO49HfilXkIIBFHowHMraVzU qEAxGts9mx7A== X-IronPort-AV: E=Sophos;i="5.78,404,1599548400"; d="scan'208";a="407838449" Received: from mlubyani-mobl2.amr.corp.intel.com (HELO bwidawsk-mobl5.local) ([10.252.137.9]) by orsmga001-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Dec 2020 16:24:20 -0800 From: Ben Widawsky To: linux-cxl@vger.kernel.org Cc: Ben Widawsky , linux-kernel@vger.kernel.org, linux-pci@vger.kernel.org, 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 v2 01/14] docs: cxl: Add basic documentation Date: Tue, 8 Dec 2020 16:24:05 -0800 Message-Id: <20201209002418.1976362-2-ben.widawsky@intel.com> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201209002418.1976362-1-ben.widawsky@intel.com> References: <20201209002418.1976362-1-ben.widawsky@intel.com> MIME-Version: 1.0 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 57719744774c..38678f6c5676 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 -----------------------------------