From patchwork Fri Jul 5 00:46:42 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ramalingam C X-Patchwork-Id: 11032149 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 67778112C for ; Fri, 5 Jul 2019 07:45:52 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 5923928470 for ; Fri, 5 Jul 2019 07:45:52 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 4DAD228698; Fri, 5 Jul 2019 07:45:52 +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=-3.7 required=2.0 tests=BAYES_00,DATE_IN_PAST_06_12, MAILING_LIST_MULTI,RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id F3A3928628 for ; Fri, 5 Jul 2019 07:45:51 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 60CD76E421; Fri, 5 Jul 2019 07:45:51 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by gabe.freedesktop.org (Postfix) with ESMTPS id EAB296E421 for ; Fri, 5 Jul 2019 07:45:47 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga005.jf.intel.com ([10.7.209.41]) by orsmga105.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 05 Jul 2019 00:45:47 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.63,454,1557212400"; d="scan'208";a="339772043" Received: from ramaling-i9x.iind.intel.com ([10.99.66.154]) by orsmga005.jf.intel.com with ESMTP; 05 Jul 2019 00:45:45 -0700 From: Ramalingam C To: intel-gfx , Daniel Vetter Date: Fri, 5 Jul 2019 06:16:42 +0530 Message-Id: <20190705004642.15822-7-ramalingam.c@intel.com> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20190705004642.15822-1-ramalingam.c@intel.com> References: <20190705004642.15822-1-ramalingam.c@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v8 6/6] drm/hdcp: reference for srm file format X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: ppaalanen@gmail.com Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP In the kernel documentation, HDCP specifications links are shared as a reference for SRM table format. Signed-off-by: Ramalingam C --- drivers/gpu/drm/drm_hdcp.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/gpu/drm/drm_hdcp.c b/drivers/gpu/drm/drm_hdcp.c index 77433ee3d652..803bf8283b83 100644 --- a/drivers/gpu/drm/drm_hdcp.c +++ b/drivers/gpu/drm/drm_hdcp.c @@ -271,6 +271,13 @@ static void drm_hdcp_request_srm(struct drm_device *drm_dev) * * SRM should be presented in the name of "display_hdcp_srm.bin". * + * Format of the SRM table that userspace needs to write into the binary file + * is defined at + * 1. Renewability chapter on 55th page of HDCP 1.4 specification + * https://www.digital-cp.com/sites/default/files/specifications/HDCP%20Specification%20Rev1_4_Secure.pdf + * 2. Renewability chapter on 63rd page of HDCP 2.2 specification + * https://www.digital-cp.com/sites/default/files/specifications/HDCP%20on%20HDMI%20Specification%20Rev2_2_Final1.pdf + * * Returns: * TRUE on any of the KSV is revoked, else FALSE. */