From patchwork Sun Mar 28 22:56:53 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Daniele Ceraolo Spurio X-Patchwork-Id: 12169183 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=ham 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 D1AC1C433C1 for ; Sun, 28 Mar 2021 22:57:46 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 859B861929 for ; Sun, 28 Mar 2021 22:57:46 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 859B861929 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=intel-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 201F489F75; Sun, 28 Mar 2021 22:57:46 +0000 (UTC) Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by gabe.freedesktop.org (Postfix) with ESMTPS id 680EE89F97 for ; Sun, 28 Mar 2021 22:57:43 +0000 (UTC) IronPort-SDR: ZCZRSjhp7WdfhW5sDkheffRGtbQVlAZwaGTtv9BkmxCgVthRo+4akA9MXlH4oL/d2tsRphDauy v9EmQwFdoCwg== X-IronPort-AV: E=McAfee;i="6000,8403,9937"; a="255443990" X-IronPort-AV: E=Sophos;i="5.81,285,1610438400"; d="scan'208";a="255443990" Received: from orsmga003.jf.intel.com ([10.7.209.27]) by orsmga105.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Mar 2021 15:57:43 -0700 IronPort-SDR: ouT0YNrwcz/DN8giUFqioQpCQAFJfgLR2OBXoxTYNDs4K/q5ZZJMlEz2sI6sjhOwO5qg8dS8wp u4IGS4BFTSQA== X-IronPort-AV: E=Sophos;i="5.81,285,1610438400"; d="scan'208";a="376213743" Received: from dceraolo-linux.fm.intel.com ([10.1.27.145]) by orsmga003-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Mar 2021 15:57:43 -0700 From: Daniele Ceraolo Spurio To: intel-gfx@lists.freedesktop.org Date: Sun, 28 Mar 2021 15:56:53 -0700 Message-Id: <20210328225709.18541-2-daniele.ceraolospurio@intel.com> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20210328225709.18541-1-daniele.ceraolospurio@intel.com> References: <20210328225709.18541-1-daniele.ceraolospurio@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v3 01/16] drm/i915/pxp: Define PXP component interface X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" This will be used for communication between the i915 driver and the mei one. Defining it in a stand-alone patch to avoid circualr dependedencies between the patches modifying the 2 drivers. Split out from an original patch from Huang, Sean Z v2: rename the component struct (Rodrigo) Signed-off-by: Daniele Ceraolo Spurio Cc: Rodrigo Vivi Reviewed-by: Rodrigo Vivi --- include/drm/i915_component.h | 1 + include/drm/i915_pxp_tee_interface.h | 45 ++++++++++++++++++++++++++++ 2 files changed, 46 insertions(+) create mode 100644 include/drm/i915_pxp_tee_interface.h diff --git a/include/drm/i915_component.h b/include/drm/i915_component.h index 55c3b123581b..c1e2a43d2d1e 100644 --- a/include/drm/i915_component.h +++ b/include/drm/i915_component.h @@ -29,6 +29,7 @@ enum i915_component_type { I915_COMPONENT_AUDIO = 1, I915_COMPONENT_HDCP, + I915_COMPONENT_PXP }; /* MAX_PORT is the number of port diff --git a/include/drm/i915_pxp_tee_interface.h b/include/drm/i915_pxp_tee_interface.h new file mode 100644 index 000000000000..09b8389152af --- /dev/null +++ b/include/drm/i915_pxp_tee_interface.h @@ -0,0 +1,45 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright © 2020 Intel Corporation + * + * Authors: + * Vitaly Lubart + */ + +#ifndef _I915_PXP_TEE_INTERFACE_H_ +#define _I915_PXP_TEE_INTERFACE_H_ + +#include +#include + +/** + * struct i915_pxp_component_ops - ops for PXP services. + * @owner: Module providing the ops + * @send: sends data to PXP + * @receive: receives data from PXP + */ +struct i915_pxp_component_ops { + /** + * @owner: owner of the module provding the ops + */ + struct module *owner; + + int (*send)(struct device *dev, const void *message, size_t size); + int (*recv)(struct device *dev, void *buffer, size_t size); +}; + +/** + * struct i915_pxp_component - Used for communication between i915 and TEE + * drivers for the PXP services + * @tee_dev: device that provide the PXP service from TEE Bus. + * @pxp_ops: Ops implemented by TEE driver, used by i915 driver. + */ +struct i915_pxp_component { + struct device *tee_dev; + const struct i915_pxp_component_ops *ops; + + /* To protect the above members. */ + struct mutex mutex; +}; + +#endif /* _I915_TEE_PXP_INTERFACE_H_ */