From patchwork Wed Nov 28 14:00:46 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ramalingam C X-Patchwork-Id: 10702745 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 33B10109C for ; Wed, 28 Nov 2018 14:04:35 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 241C12CCC1 for ; Wed, 28 Nov 2018 14:04:35 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 187102CD19; Wed, 28 Nov 2018 14:04:35 +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=-5.2 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED autolearn=unavailable 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 CC7BC2CCC1 for ; Wed, 28 Nov 2018 14:04:34 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 128BE6E0FB; Wed, 28 Nov 2018 14:04:33 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by gabe.freedesktop.org (Postfix) with ESMTPS id 255B5891DC; Wed, 28 Nov 2018 14:04:31 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by orsmga101.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 28 Nov 2018 06:04:30 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,290,1539673200"; d="scan'208";a="114056940" Received: from mint-dev.iind.intel.com ([10.223.25.164]) by fmsmga004.fm.intel.com with ESMTP; 28 Nov 2018 06:04:28 -0800 From: Ramalingam C To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, seanpaul@chromium.org, daniel.vetter@ffwll.ch Subject: [PATCH v2 1/4] drm/i915: Fix GEN9 HDCP1.4 key load process Date: Wed, 28 Nov 2018 19:30:46 +0530 Message-Id: <1543413646-8832-1-git-send-email-ramalingam.c@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1543327379-22629-2-git-send-email-ramalingam.c@intel.com> References: <1543327379-22629-2-git-send-email-ramalingam.c@intel.com> X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP HDCP1.4 key load process varies between Intel platform to platform. For Gen9 platforms except BXT and GLK, HDCP1.4 key is loaded using the GT Driver Mailbox interface. So all GEN9_BC platforms will use the GT Driver Mailbox interface for HDCP1.4 key load. v2: Using the IS_GEN9_BC for filtering the platforms [Ville] Signed-off-by: Ramalingam C --- drivers/gpu/drm/i915/intel_hdcp.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_hdcp.c b/drivers/gpu/drm/i915/intel_hdcp.c index 1bf487f94254..c16bffcce3b0 100644 --- a/drivers/gpu/drm/i915/intel_hdcp.c +++ b/drivers/gpu/drm/i915/intel_hdcp.c @@ -157,10 +157,11 @@ static int intel_hdcp_load_keys(struct drm_i915_private *dev_priv) /* * Initiate loading the HDCP key from fuses. * - * BXT+ platforms, HDCP key needs to be loaded by SW. Only SKL and KBL - * differ in the key load trigger process from other platforms. + * BXT+ platforms, HDCP key needs to be loaded by SW. Only Gen 9 + * platforms except BXT and GLK, differ in the key load trigger process + * from other platforms. So GEN9_BC uses the GT Driver Mailbox i/f. */ - if (IS_SKYLAKE(dev_priv) || IS_KABYLAKE(dev_priv)) { + if (IS_GEN9_BC(dev_priv)) { mutex_lock(&dev_priv->pcu_lock); ret = sandybridge_pcode_write(dev_priv, SKL_PCODE_LOAD_HDCP_KEYS, 1);