From patchwork Wed Feb 6 21:03:56 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ramalingam C X-Patchwork-Id: 10800091 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 94320922 for ; Wed, 6 Feb 2019 21:10:55 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 858FC2C595 for ; Wed, 6 Feb 2019 21:10:55 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 79F022C61A; Wed, 6 Feb 2019 21:10:55 +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=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 10C142C595 for ; Wed, 6 Feb 2019 21:10:54 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id CE7F26EB32; Wed, 6 Feb 2019 21:10:49 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga02.intel.com (mga02.intel.com [134.134.136.20]) by gabe.freedesktop.org (Postfix) with ESMTPS id 95DB06EB32; Wed, 6 Feb 2019 21:10:46 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by orsmga101.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 06 Feb 2019 13:10:46 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.58,341,1544515200"; d="scan'208";a="141272937" Received: from mint-dev.iind.intel.com ([10.223.25.164]) by fmsmga002.fm.intel.com with ESMTP; 06 Feb 2019 13:10:44 -0800 From: Ramalingam C To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, daniel.vetter@ffwll.ch, tomas.winkler@intel.com, uma.shankar@intel.com Date: Thu, 7 Feb 2019 02:33:56 +0530 Message-Id: <1549487071-15343-8-git-send-email-ramalingam.c@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1549487071-15343-1-git-send-email-ramalingam.c@intel.com> References: <1549487071-15343-1-git-send-email-ramalingam.c@intel.com> Subject: [Intel-gfx] [PATCH v11 07/42] drm/i915: Initialize HDCP2.2 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: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP Add the HDCP2.2 initialization to the existing HDCP1.4 stack. v2: mei interface handle is protected with mutex. [Chris Wilson] v3: Notifiers are used for the mei interface state. v4: Poll for mei client device state Error msg for out of mem [Uma] Inline req for init function removed [Uma] v5: Rebase as Part of reordering. Component is used for the I915 and MEI_HDCP interface [Daniel] v6: HDCP2.2 uses the I915 component master to communicate with mei_hdcp - [Daniel] Required HDCP2.2 variables defined [Sean Paul] v7: intel_hdcp2.2_init returns void [Uma] Realigning the codes. v8: Avoid using bool structure members. MEI interface related changes are moved into separate patch. Commit msg is updated accordingly. intel_hdcp_exit is defined and used from i915_unload v9: Movement of the hdcp_check_link is moved to new patch [Daniel] intel_hdcp2_exit is removed as mei_comp will be unbind in i915_unload. v10: bool is used in struct to make coding simpler. [Daniel] hdmi hdcp init is placed correctly after encoder attachment. v11: hdcp2_capability check is moved into hdcp.c [Tomas] Signed-off-by: Ramalingam C Reviewed-by: Daniel Vetter Reviewed-by: Uma Shankar --- drivers/gpu/drm/i915/intel_drv.h | 11 +++++++++++ drivers/gpu/drm/i915/intel_hdcp.c | 28 ++++++++++++++++++++++++++-- drivers/gpu/drm/i915/intel_hdmi.c | 6 +++--- 3 files changed, 40 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index 90ba5436370e..030d962697dd 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -394,6 +394,17 @@ struct intel_hdcp { u64 value; struct delayed_work check_work; struct work_struct prop_work; + + /* HDCP2.2 related definitions */ + /* Flag indicates whether this connector supports HDCP2.2 or not. */ + bool hdcp2_supported; + + /* + * Content Stream Type defined by content owner. TYPE0(0x0) content can + * flow in the link protected by HDCP2.2 or HDCP1.4, where as TYPE1(0x1) + * content can flow only through a link protected by HDCP2.2. + */ + u8 content_type; }; struct intel_connector { diff --git a/drivers/gpu/drm/i915/intel_hdcp.c b/drivers/gpu/drm/i915/intel_hdcp.c index 8cb85b07cfde..7b1097d79fb8 100644 --- a/drivers/gpu/drm/i915/intel_hdcp.c +++ b/drivers/gpu/drm/i915/intel_hdcp.c @@ -832,14 +832,34 @@ bool is_hdcp_supported(struct drm_i915_private *dev_priv, enum port port) return INTEL_GEN(dev_priv) >= 9 && port < PORT_E; } +static bool is_hdcp2_supported(struct drm_i915_private *dev_priv) +{ + if (!IS_ENABLED(CONFIG_INTEL_MEI_HDCP)) + return false; + + return (INTEL_GEN(dev_priv) >= 10 || IS_GEMINILAKE(dev_priv) || + IS_KABYLAKE(dev_priv)); +} + +static void intel_hdcp2_init(struct intel_connector *connector) +{ + struct intel_hdcp *hdcp = &connector->hdcp; + + /* TODO: MEI interface needs to be initialized here */ + hdcp->hdcp2_supported = true; +} + int intel_hdcp_init(struct intel_connector *connector, const struct intel_hdcp_shim *shim) { + struct drm_i915_private *dev_priv = to_i915(connector->base.dev); struct intel_hdcp *hdcp = &connector->hdcp; int ret; - ret = drm_connector_attach_content_protection_property( - &connector->base); + if (!shim) + return -EINVAL; + + ret = drm_connector_attach_content_protection_property(&connector->base); if (ret) return ret; @@ -847,6 +867,10 @@ int intel_hdcp_init(struct intel_connector *connector, mutex_init(&hdcp->mutex); INIT_DELAYED_WORK(&hdcp->check_work, intel_hdcp_check_work); INIT_WORK(&hdcp->prop_work, intel_hdcp_prop_work); + + if (is_hdcp2_supported(dev_priv)) + intel_hdcp2_init(connector); + return 0; } diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c index f125a62eba8c..faeedf76db99 100644 --- a/drivers/gpu/drm/i915/intel_hdmi.c +++ b/drivers/gpu/drm/i915/intel_hdmi.c @@ -2427,6 +2427,9 @@ void intel_hdmi_init_connector(struct intel_digital_port *intel_dig_port, intel_hdmi_add_properties(intel_hdmi, connector); + intel_connector_attach_encoder(intel_connector, intel_encoder); + intel_hdmi->attached_connector = intel_connector; + if (is_hdcp_supported(dev_priv, port)) { int ret = intel_hdcp_init(intel_connector, &intel_hdmi_hdcp_shim); @@ -2434,9 +2437,6 @@ void intel_hdmi_init_connector(struct intel_digital_port *intel_dig_port, DRM_DEBUG_KMS("HDCP init failed, skipping.\n"); } - intel_connector_attach_encoder(intel_connector, intel_encoder); - intel_hdmi->attached_connector = intel_connector; - /* For G4X desktop chip, PEG_BAND_GAP_DATA 3:0 must first be written * 0xd. Failure to do so will result in spurious interrupts being * generated on the port when a cable is not attached.