From patchwork Tue Oct 27 16:42:01 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Gupta, Anshuman" X-Patchwork-Id: 11860965 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=-9.9 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,UNWANTED_LANGUAGE_BODY,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable 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 2C5D0C55178 for ; Tue, 27 Oct 2020 16:56:31 +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 DFFD820727 for ; Tue, 27 Oct 2020 16:56:30 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DFFD820727 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=dri-devel-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id C35B26EBD0; Tue, 27 Oct 2020 16:56:29 +0000 (UTC) Received: from mga17.intel.com (mga17.intel.com [192.55.52.151]) by gabe.freedesktop.org (Postfix) with ESMTPS id E97666EBB5; Tue, 27 Oct 2020 16:56:26 +0000 (UTC) IronPort-SDR: dHiJXDgu5XRR4lixXR2Dmi72QNQYewxcDiA0thlfqznShgDnc/b1utEkajQkp2cczhZ2uIZ18p x69iZBp0uwOQ== X-IronPort-AV: E=McAfee;i="6000,8403,9787"; a="147975842" X-IronPort-AV: E=Sophos;i="5.77,424,1596524400"; d="scan'208";a="147975842" X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga002.fm.intel.com ([10.253.24.26]) by fmsmga107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Oct 2020 09:56:26 -0700 IronPort-SDR: oS4C0nvRFfIwz0zpX7CWgq2E9+StrWGxr+zH6PH+Aanb7HTdP+Bj7JfMZ4cxm/UtIhsjs/DNb6 BWPXt3UnPtKA== X-IronPort-AV: E=Sophos;i="5.77,424,1596524400"; d="scan'208";a="355613189" Received: from genxfsim-desktop.iind.intel.com ([10.223.74.178]) by fmsmga002-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Oct 2020 09:56:24 -0700 From: Anshuman Gupta To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org Subject: [PATCH v4 09/16] drm/i915/hdcp: Encapsulate hdcp_port_data to dig_port Date: Tue, 27 Oct 2020 22:12:01 +0530 Message-Id: <20201027164208.10026-10-anshuman.gupta@intel.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20201027164208.10026-1-anshuman.gupta@intel.com> References: <20201027164208.10026-1-anshuman.gupta@intel.com> MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: jani.nikula@intel.com, uma.shankar@intel.com, seanpaul@chromium.org, Anshuman Gupta , juston.li@intel.com Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" hdcp_port_data is specific to a port on which HDCP encryption is getting enabled, so encapsulate it to intel_digital_port. This will be required to enable HDCP 2.2 stream encryption. Cc: Ramalingam C Reviewed-by: Uma Shankar Signed-off-by: Anshuman Gupta Reviewed-by: Ramalingam C --- drivers/gpu/drm/i915/display/intel_ddi.c | 2 + .../drm/i915/display/intel_display_types.h | 5 +- drivers/gpu/drm/i915/display/intel_hdcp.c | 56 +++++++++++-------- 3 files changed, 39 insertions(+), 24 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c index 779603a38cfc..1bc6cf0b83ec 100644 --- a/drivers/gpu/drm/i915/display/intel_ddi.c +++ b/drivers/gpu/drm/i915/display/intel_ddi.c @@ -4746,6 +4746,8 @@ static void intel_ddi_encoder_destroy(struct drm_encoder *encoder) intel_dp_encoder_flush_work(encoder); drm_encoder_cleanup(encoder); + if (dig_port) + kfree(dig_port->port_data.streams); kfree(dig_port); } diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h index 59b8fc21e3e8..749c3a7e0b45 100644 --- a/drivers/gpu/drm/i915/display/intel_display_types.h +++ b/drivers/gpu/drm/i915/display/intel_display_types.h @@ -402,7 +402,6 @@ struct intel_hdcp { * content can flow only through a link protected by HDCP2.2. */ u8 content_type; - struct hdcp_port_data port_data; bool is_paired; bool is_repeater; @@ -1446,10 +1445,12 @@ struct intel_digital_port { enum phy_fia tc_phy_fia; u8 tc_phy_fia_idx; - /* protects num_hdcp_streams reference count */ + /* protects num_hdcp_streams reference count, port_data */ struct mutex hdcp_mutex; /* the number of pipes using HDCP signalling out of this port */ unsigned int num_hdcp_streams; + /* HDCP port data need to pass to security f/w */ + struct hdcp_port_data port_data; void (*write_infoframe)(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state, diff --git a/drivers/gpu/drm/i915/display/intel_hdcp.c b/drivers/gpu/drm/i915/display/intel_hdcp.c index b0f47687bc59..a5ec4f72f50f 100644 --- a/drivers/gpu/drm/i915/display/intel_hdcp.c +++ b/drivers/gpu/drm/i915/display/intel_hdcp.c @@ -15,6 +15,7 @@ #include #include +#include "i915_drv.h" #include "i915_reg.h" #include "intel_display_power.h" #include "intel_display_types.h" @@ -1028,7 +1029,8 @@ static int hdcp2_prepare_ake_init(struct intel_connector *connector, struct hdcp2_ake_init *ake_data) { - struct hdcp_port_data *data = &connector->hdcp.port_data; + struct intel_digital_port *dig_port = intel_attached_dig_port(connector); + struct hdcp_port_data *data = &dig_port->port_data; struct drm_i915_private *dev_priv = to_i915(connector->base.dev); struct i915_hdcp_comp_master *comp; int ret; @@ -1057,7 +1059,8 @@ hdcp2_verify_rx_cert_prepare_km(struct intel_connector *connector, struct hdcp2_ake_no_stored_km *ek_pub_km, size_t *msg_sz) { - struct hdcp_port_data *data = &connector->hdcp.port_data; + struct intel_digital_port *dig_port = intel_attached_dig_port(connector); + struct hdcp_port_data *data = &dig_port->port_data; struct drm_i915_private *dev_priv = to_i915(connector->base.dev); struct i915_hdcp_comp_master *comp; int ret; @@ -1084,7 +1087,8 @@ hdcp2_verify_rx_cert_prepare_km(struct intel_connector *connector, static int hdcp2_verify_hprime(struct intel_connector *connector, struct hdcp2_ake_send_hprime *rx_hprime) { - struct hdcp_port_data *data = &connector->hdcp.port_data; + struct intel_digital_port *dig_port = intel_attached_dig_port(connector); + struct hdcp_port_data *data = &dig_port->port_data; struct drm_i915_private *dev_priv = to_i915(connector->base.dev); struct i915_hdcp_comp_master *comp; int ret; @@ -1109,7 +1113,8 @@ static int hdcp2_store_pairing_info(struct intel_connector *connector, struct hdcp2_ake_send_pairing_info *pairing_info) { - struct hdcp_port_data *data = &connector->hdcp.port_data; + struct intel_digital_port *dig_port = intel_attached_dig_port(connector); + struct hdcp_port_data *data = &dig_port->port_data; struct drm_i915_private *dev_priv = to_i915(connector->base.dev); struct i915_hdcp_comp_master *comp; int ret; @@ -1135,7 +1140,8 @@ static int hdcp2_prepare_lc_init(struct intel_connector *connector, struct hdcp2_lc_init *lc_init) { - struct hdcp_port_data *data = &connector->hdcp.port_data; + struct intel_digital_port *dig_port = intel_attached_dig_port(connector); + struct hdcp_port_data *data = &dig_port->port_data; struct drm_i915_private *dev_priv = to_i915(connector->base.dev); struct i915_hdcp_comp_master *comp; int ret; @@ -1161,7 +1167,8 @@ static int hdcp2_verify_lprime(struct intel_connector *connector, struct hdcp2_lc_send_lprime *rx_lprime) { - struct hdcp_port_data *data = &connector->hdcp.port_data; + struct intel_digital_port *dig_port = intel_attached_dig_port(connector); + struct hdcp_port_data *data = &dig_port->port_data; struct drm_i915_private *dev_priv = to_i915(connector->base.dev); struct i915_hdcp_comp_master *comp; int ret; @@ -1186,7 +1193,8 @@ hdcp2_verify_lprime(struct intel_connector *connector, static int hdcp2_prepare_skey(struct intel_connector *connector, struct hdcp2_ske_send_eks *ske_data) { - struct hdcp_port_data *data = &connector->hdcp.port_data; + struct intel_digital_port *dig_port = intel_attached_dig_port(connector); + struct hdcp_port_data *data = &dig_port->port_data; struct drm_i915_private *dev_priv = to_i915(connector->base.dev); struct i915_hdcp_comp_master *comp; int ret; @@ -1214,7 +1222,8 @@ hdcp2_verify_rep_topology_prepare_ack(struct intel_connector *connector, *rep_topology, struct hdcp2_rep_send_ack *rep_send_ack) { - struct hdcp_port_data *data = &connector->hdcp.port_data; + struct intel_digital_port *dig_port = intel_attached_dig_port(connector); + struct hdcp_port_data *data = &dig_port->port_data; struct drm_i915_private *dev_priv = to_i915(connector->base.dev); struct i915_hdcp_comp_master *comp; int ret; @@ -1242,7 +1251,8 @@ static int hdcp2_verify_mprime(struct intel_connector *connector, struct hdcp2_rep_stream_ready *stream_ready) { - struct hdcp_port_data *data = &connector->hdcp.port_data; + struct intel_digital_port *dig_port = intel_attached_dig_port(connector); + struct hdcp_port_data *data = &dig_port->port_data; struct drm_i915_private *dev_priv = to_i915(connector->base.dev); struct i915_hdcp_comp_master *comp; int ret; @@ -1265,7 +1275,8 @@ hdcp2_verify_mprime(struct intel_connector *connector, static int hdcp2_authenticate_port(struct intel_connector *connector) { - struct hdcp_port_data *data = &connector->hdcp.port_data; + struct intel_digital_port *dig_port = intel_attached_dig_port(connector); + struct hdcp_port_data *data = &dig_port->port_data; struct drm_i915_private *dev_priv = to_i915(connector->base.dev); struct i915_hdcp_comp_master *comp; int ret; @@ -1289,6 +1300,7 @@ static int hdcp2_authenticate_port(struct intel_connector *connector) static int hdcp2_close_mei_session(struct intel_connector *connector) { + struct intel_digital_port *dig_port = intel_attached_dig_port(connector); struct drm_i915_private *dev_priv = to_i915(connector->base.dev); struct i915_hdcp_comp_master *comp; int ret; @@ -1302,7 +1314,7 @@ static int hdcp2_close_mei_session(struct intel_connector *connector) } ret = comp->ops->close_hdcp_session(comp->mei_dev, - &connector->hdcp.port_data); + &dig_port->port_data); mutex_unlock(&dev_priv->hdcp_comp_mutex); return ret; @@ -1495,8 +1507,9 @@ int _hdcp2_propagate_stream_management_info(struct intel_connector *connector) if (ret < 0) goto out; - hdcp->port_data.seq_num_m = hdcp->seq_num_m; - hdcp->port_data.streams[0].stream_type = hdcp->content_type; + dig_port->port_data.seq_num_m = hdcp->seq_num_m; + dig_port->port_data.streams[0].stream_type = hdcp->content_type; + ret = hdcp2_verify_mprime(connector, &msgs.stream_ready); out: @@ -1728,7 +1741,9 @@ hdcp2_propagate_stream_management_info(struct intel_connector *connector) static int hdcp2_authenticate_and_encrypt(struct intel_connector *connector) { + struct intel_digital_port *dig_port = intel_attached_dig_port(connector); struct drm_i915_private *i915 = to_i915(connector->base.dev); + struct hdcp_port_data *data = &dig_port->port_data; struct intel_hdcp *hdcp = &connector->hdcp; int ret, i, tries = 3; @@ -1742,8 +1757,7 @@ static int hdcp2_authenticate_and_encrypt(struct intel_connector *connector) ret); break; } - hdcp->port_data.streams[0].stream_type = - hdcp->content_type; + data->streams[0].stream_type = hdcp->content_type; ret = hdcp2_authenticate_port(connector); if (!ret) break; @@ -1986,8 +2000,8 @@ static int initialize_hdcp_port_data(struct intel_connector *connector, const struct intel_hdcp_shim *shim) { struct drm_i915_private *dev_priv = to_i915(connector->base.dev); + struct hdcp_port_data *data = &dig_port->port_data; struct intel_hdcp *hdcp = &connector->hdcp; - struct hdcp_port_data *data = &hdcp->port_data; enum port port = dig_port->base.port; if (INTEL_GEN(dev_priv) < 12) @@ -2009,16 +2023,15 @@ static int initialize_hdcp_port_data(struct intel_connector *connector, data->port_type = (u8)HDCP_PORT_TYPE_INTEGRATED; data->protocol = (u8)shim->protocol; - data->k = 1; if (!data->streams) - data->streams = kcalloc(data->k, + data->streams = kcalloc(INTEL_NUM_PIPES(dev_priv), sizeof(struct hdcp2_streamid_type), GFP_KERNEL); if (!data->streams) { drm_err(&dev_priv->drm, "Out of Memory\n"); return -ENOMEM; } - + /* For SST */ data->streams[0].stream_id = 0; data->streams[0].stream_type = hdcp->content_type; @@ -2097,7 +2110,7 @@ int intel_hdcp_init(struct intel_connector *connector, hdcp->hdcp2_supported); if (ret) { hdcp->hdcp2_supported = false; - kfree(hdcp->port_data.streams); + kfree(dig_port->port_data.streams); return ret; } @@ -2137,7 +2150,7 @@ int intel_hdcp_enable(struct intel_connector *connector, } if (INTEL_GEN(dev_priv) >= 12) - hdcp->port_data.fw_tc = intel_get_mei_fw_tc(hdcp->cpu_transcoder); + dig_port->port_data.fw_tc = intel_get_mei_fw_tc(hdcp->cpu_transcoder); /* * Considering that HDCP2.2 is more secure than HDCP1.4, If the setup @@ -2307,7 +2320,6 @@ void intel_hdcp_cleanup(struct intel_connector *connector) drm_WARN_ON(connector->base.dev, work_pending(&hdcp->prop_work)); mutex_lock(&hdcp->mutex); - kfree(hdcp->port_data.streams); hdcp->shim = NULL; mutex_unlock(&hdcp->mutex); }