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[209.132.180.67]) by mx.google.com with ESMTP id p123-v6si6809243pfg.281.2018.09.06.16.17.10; Thu, 06 Sep 2018 16:17:25 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=intel.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730615AbeIFXzN (ORCPT + 99 others); Thu, 6 Sep 2018 19:55:13 -0400 Received: from mga01.intel.com ([192.55.52.88]:47098 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729479AbeIFXzL (ORCPT ); Thu, 6 Sep 2018 19:55:11 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by fmsmga101.fm.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 Cc: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-fpga@vger.kernel.org, linux-doc@vger.kernel.org, yves.vandervennet@linux.intel.com, richard.gong@intel.com 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 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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: -- 2.7.4