From patchwork Thu Sep 6 19:25:09 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Richard Gong X-Patchwork-Id: 10590993 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 F1B80112B for ; Thu, 6 Sep 2018 19:22:39 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id DA4952B0E8 for ; Thu, 6 Sep 2018 19:22:39 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id CE1452B0ED; Thu, 6 Sep 2018 19:22:39 +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=-2.9 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,MAILING_LIST_MULTI,RCVD_IN_DNSWL_NONE autolearn=ham version=3.3.1 Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 745F42B0E8 for ; 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Thu, 06 Sep 2018 19:22:28 +0000 Received: from mga02.intel.com ([134.134.136.20]) by bombadil.infradead.org with esmtps (Exim 4.90_1 #2 (Red Hat Linux)) id 1fxznS-0007qA-OE for linux-arm-kernel@lists.infradead.org; Thu, 06 Sep 2018 19:18:41 +0000 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by orsmga101.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 06 Sep 2018 12:18:19 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.53,339,1531810800"; d="scan'208";a="68939862" Received: from marshy.an.intel.com ([10.122.105.159]) by fmsmga008.fm.intel.com with ESMTP; 06 Sep 2018 12:18:04 -0700 From: richard.gong@linux.intel.com To: gregkh@linuxfoundation.org, catalin.marinas@arm.com, will.deacon@arm.com, dinguyen@kernel.org, robh+dt@kernel.org, mark.rutland@arm.com, atull@kernel.org, mdf@kernel.org, arnd@arndb.de, corbet@lwn.net Subject: [PATCHv9 7/8] Documentation: driver-api: add stratix10 service layer Date: Thu, 6 Sep 2018 14:25:09 -0500 Message-Id: <1536261910-16426-8-git-send-email-richard.gong@linux.intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1536261910-16426-1-git-send-email-richard.gong@linux.intel.com> References: <1536261910-16426-1-git-send-email-richard.gong@linux.intel.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20180906_121830_891262_3FC63427 X-CRM114-Status: GOOD ( 14.71 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: devicetree@vger.kernel.org, yves.vandervennet@linux.intel.com, richard.gong@intel.com, linux-doc@vger.kernel.org, linux-fpga@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+patchwork-linux-arm=patchwork.kernel.org@lists.infradead.org X-Virus-Scanned: ClamAV using ClamSMTP From: Richard Gong Add new file stratix10-svc.rst Add stratix10-svc.rst to driver-api/index.rst Signed-off-by: Richard Gong Signed-off-by: Alan Tull --- v5: this patch is added in patch set version 5 v6: no change v7: no change v8: no change v9: no change --- Documentation/driver-api/index.rst | 1 + Documentation/driver-api/stratix10-svc.rst | 32 ++++++++++++++++++++++++++++++ 2 files changed, 33 insertions(+) create mode 100644 Documentation/driver-api/stratix10-svc.rst diff --git a/Documentation/driver-api/index.rst b/Documentation/driver-api/index.rst index 6d9f2f9..d4d2671 100644 --- a/Documentation/driver-api/index.rst +++ b/Documentation/driver-api/index.rst @@ -53,6 +53,7 @@ available subsections can be seen below. slimbus soundwire/index fpga/index + stratix10-svc .. only:: subproject and html diff --git a/Documentation/driver-api/stratix10-svc.rst b/Documentation/driver-api/stratix10-svc.rst new file mode 100644 index 0000000..ed361d8 --- /dev/null +++ b/Documentation/driver-api/stratix10-svc.rst @@ -0,0 +1,32 @@ + +Intel Stratix10 SoC Service Layer +================================= + +Some features of the Intel Stratix10 SoC require a level of privilege +higher than the kernel is granted. Such secure features include +FPGA programming. In terms of the ARMv8 architecture, the kernel runs +at Exception Level 1 (EL1), access to the features requires +Exception Level 3 (EL3). + +The Intel Stratix10 SoC service layer provides an in kernel API for +drivers to request access to the secure features. The requests are queued +and processed one by one. ARM’s SMCCC is used to pass the execution +of the requests on to a secure monitor (EL3). + +.. kernel-doc:: include/linux/stratix10-svc-client.h + :functions: stratix10_svc_command_code + +.. kernel-doc:: include/linux/stratix10-svc-client.h + :functions: stratix10_svc_client_msg + +.. kernel-doc:: include/linux/stratix10-svc-client.h + :functions: stratix10_svc_command_reconfig_payload + +.. kernel-doc:: include/linux/stratix10-svc-client.h + :functions: stratix10_svc_cb_data + +.. kernel-doc:: include/linux/stratix10-svc-client.h + :functions: stratix10_svc_client + +.. kernel-doc:: drivers/misc/stratix10-svc.c + :export: