From patchwork Mon Jul 8 11:21:12 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ramalingam C X-Patchwork-Id: 11035577 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 46B401805 for ; Mon, 8 Jul 2019 18:20:27 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 3556F28647 for ; Mon, 8 Jul 2019 18:20:27 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 291DC2864E; Mon, 8 Jul 2019 18:20:27 +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 5CE8628660 for ; Mon, 8 Jul 2019 18:20:26 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 3D3D16E039; Mon, 8 Jul 2019 18:20:16 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTPS id 6D4366E03A; Mon, 8 Jul 2019 18:20:12 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga002.jf.intel.com ([10.7.209.21]) by fmsmga102.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 08 Jul 2019 11:20:11 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.63,466,1557212400"; d="scan'208";a="176240742" Received: from ramaling-i9x.iind.intel.com ([10.99.66.154]) by orsmga002.jf.intel.com with ESMTP; 08 Jul 2019 11:20:09 -0700 From: Ramalingam C To: intel-gfx , dri-devel , Daniel Vetter Subject: [PATCH v9 2/6] drm/i915: Attach content type property Date: Mon, 8 Jul 2019 16:51:12 +0530 Message-Id: <20190708112116.1780-3-ramalingam.c@intel.com> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20190708112116.1780-1-ramalingam.c@intel.com> References: <20190708112116.1780-1-ramalingam.c@intel.com> MIME-Version: 1.0 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: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP Attaches the content type property for HDCP2.2 capable connectors. Implements the update of content type from property and apply the restriction on HDCP version selection. Need ACK for content type property from userspace consumer. v2: s/cp_content_type/content_protection_type [daniel] disable at hdcp_atomic_check to avoid check at atomic_set_property [Maarten] v3: s/content_protection_type/hdcp_content_type [Pekka] v4: hdcp disable incase of type change is moved into commit [daniel]. v5: Simplified the Type change procedure. [Daniel] v6: Type change with UNDESIRED state is ignored. Signed-off-by: Ramalingam C Reviewed-by: Daniel Vetter --- drivers/gpu/drm/i915/display/intel_ddi.c | 39 ++++++++++++++++---- drivers/gpu/drm/i915/display/intel_hdcp.c | 43 +++++++++++++++-------- drivers/gpu/drm/i915/display/intel_hdcp.h | 2 +- 3 files changed, 62 insertions(+), 22 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c index a4172595c8d8..862907393a6d 100644 --- a/drivers/gpu/drm/i915/display/intel_ddi.c +++ b/drivers/gpu/drm/i915/display/intel_ddi.c @@ -3514,7 +3514,8 @@ static void intel_enable_ddi(struct intel_encoder *encoder, /* Enable hdcp if it's desired */ if (conn_state->content_protection == DRM_MODE_CONTENT_PROTECTION_DESIRED) - intel_hdcp_enable(to_intel_connector(conn_state->connector)); + intel_hdcp_enable(to_intel_connector(conn_state->connector), + (u8)conn_state->hdcp_content_type); } static void intel_disable_ddi_dp(struct intel_encoder *encoder, @@ -3583,15 +3584,41 @@ static void intel_ddi_update_pipe(struct intel_encoder *encoder, const struct intel_crtc_state *crtc_state, const struct drm_connector_state *conn_state) { + struct intel_connector *connector = + to_intel_connector(conn_state->connector); + struct intel_hdcp *hdcp = &connector->hdcp; + bool content_protection_type_changed = + (conn_state->hdcp_content_type != hdcp->content_type && + conn_state->content_protection != + DRM_MODE_CONTENT_PROTECTION_UNDESIRED); + if (!intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI)) intel_ddi_update_pipe_dp(encoder, crtc_state, conn_state); + /* + * During the HDCP encryption session if Type change is requested, + * disable the HDCP and reenable it with new TYPE value. + */ if (conn_state->content_protection == - DRM_MODE_CONTENT_PROTECTION_DESIRED) - intel_hdcp_enable(to_intel_connector(conn_state->connector)); - else if (conn_state->content_protection == - DRM_MODE_CONTENT_PROTECTION_UNDESIRED) - intel_hdcp_disable(to_intel_connector(conn_state->connector)); + DRM_MODE_CONTENT_PROTECTION_UNDESIRED || + content_protection_type_changed) + intel_hdcp_disable(connector); + + /* + * Mark the hdcp state as DESIRED after the hdcp disable of type + * change procedure. + */ + if (content_protection_type_changed) { + mutex_lock(&hdcp->mutex); + hdcp->value = DRM_MODE_CONTENT_PROTECTION_DESIRED; + schedule_work(&hdcp->prop_work); + mutex_unlock(&hdcp->mutex); + } + + if (conn_state->content_protection == + DRM_MODE_CONTENT_PROTECTION_DESIRED || + content_protection_type_changed) + intel_hdcp_enable(connector, (u8)conn_state->hdcp_content_type); } static void intel_ddi_set_fia_lane_count(struct intel_encoder *encoder, diff --git a/drivers/gpu/drm/i915/display/intel_hdcp.c b/drivers/gpu/drm/i915/display/intel_hdcp.c index 2a4d10952b74..4580af57bddb 100644 --- a/drivers/gpu/drm/i915/display/intel_hdcp.c +++ b/drivers/gpu/drm/i915/display/intel_hdcp.c @@ -1748,14 +1748,15 @@ static const struct component_ops i915_hdcp_component_ops = { .unbind = i915_hdcp_component_unbind, }; -static inline int initialize_hdcp_port_data(struct intel_connector *connector) +static inline int initialize_hdcp_port_data(struct intel_connector *connector, + const struct intel_hdcp_shim *shim) { struct intel_hdcp *hdcp = &connector->hdcp; struct hdcp_port_data *data = &hdcp->port_data; data->port = connector->encoder->port; data->port_type = (u8)HDCP_PORT_TYPE_INTEGRATED; - data->protocol = (u8)hdcp->shim->protocol; + data->protocol = (u8)shim->protocol; data->k = 1; if (!data->streams) @@ -1805,12 +1806,13 @@ void intel_hdcp_component_init(struct drm_i915_private *dev_priv) } } -static void intel_hdcp2_init(struct intel_connector *connector) +static void intel_hdcp2_init(struct intel_connector *connector, + const struct intel_hdcp_shim *shim) { struct intel_hdcp *hdcp = &connector->hdcp; int ret; - ret = initialize_hdcp_port_data(connector); + ret = initialize_hdcp_port_data(connector, shim); if (ret) { DRM_DEBUG_KMS("Mei hdcp data init failed\n"); return; @@ -1829,25 +1831,28 @@ int intel_hdcp_init(struct intel_connector *connector, if (!shim) return -EINVAL; + if (is_hdcp2_supported(dev_priv)) + intel_hdcp2_init(connector, shim); + ret = drm_connector_attach_content_protection_property(&connector->base, - false); - if (ret) + hdcp->hdcp2_supported); + if (ret) { + hdcp->hdcp2_supported = false; + kfree(hdcp->port_data.streams); return ret; + } hdcp->shim = shim; 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); init_waitqueue_head(&hdcp->cp_irq_queue); return 0; } -int intel_hdcp_enable(struct intel_connector *connector) +int intel_hdcp_enable(struct intel_connector *connector, u8 content_type) { struct intel_hdcp *hdcp = &connector->hdcp; unsigned long check_link_interval = DRM_HDCP_CHECK_PERIOD_MS; @@ -1858,6 +1863,7 @@ int intel_hdcp_enable(struct intel_connector *connector) mutex_lock(&hdcp->mutex); WARN_ON(hdcp->value == DRM_MODE_CONTENT_PROTECTION_ENABLED); + hdcp->content_type = content_type; /* * Considering that HDCP2.2 is more secure than HDCP1.4, If the setup @@ -1869,8 +1875,12 @@ int intel_hdcp_enable(struct intel_connector *connector) check_link_interval = DRM_HDCP2_CHECK_PERIOD_MS; } - /* When HDCP2.2 fails, HDCP1.4 will be attempted */ - if (ret && intel_hdcp_capable(connector)) { + /* + * When HDCP2.2 fails and Content Type is not Type1, HDCP1.4 will + * be attempted. + */ + if (ret && intel_hdcp_capable(connector) && + hdcp->content_type != DRM_MODE_HDCP_CONTENT_TYPE1) { ret = _intel_hdcp_enable(connector); } @@ -1952,12 +1962,15 @@ void intel_hdcp_atomic_check(struct drm_connector *connector, /* * Nothing to do if the state didn't change, or HDCP was activated since - * the last commit + * the last commit. And also no change in hdcp content type. */ if (old_cp == new_cp || (old_cp == DRM_MODE_CONTENT_PROTECTION_DESIRED && - new_cp == DRM_MODE_CONTENT_PROTECTION_ENABLED)) - return; + new_cp == DRM_MODE_CONTENT_PROTECTION_ENABLED)) { + if (old_state->hdcp_content_type == + new_state->hdcp_content_type) + return; + } crtc_state = drm_atomic_get_new_crtc_state(new_state->state, new_state->crtc); diff --git a/drivers/gpu/drm/i915/display/intel_hdcp.h b/drivers/gpu/drm/i915/display/intel_hdcp.h index be8da85c866a..13555b054930 100644 --- a/drivers/gpu/drm/i915/display/intel_hdcp.h +++ b/drivers/gpu/drm/i915/display/intel_hdcp.h @@ -21,7 +21,7 @@ void intel_hdcp_atomic_check(struct drm_connector *connector, struct drm_connector_state *new_state); int intel_hdcp_init(struct intel_connector *connector, const struct intel_hdcp_shim *hdcp_shim); -int intel_hdcp_enable(struct intel_connector *connector); +int intel_hdcp_enable(struct intel_connector *connector, u8 content_type); int intel_hdcp_disable(struct intel_connector *connector); bool is_hdcp_supported(struct drm_i915_private *dev_priv, enum port port); bool intel_hdcp_capable(struct intel_connector *connector);