From patchwork Tue May 7 16:27:35 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ramalingam C X-Patchwork-Id: 10933285 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 0567F1390 for ; Tue, 7 May 2019 16:26:08 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E9E01288F7 for ; Tue, 7 May 2019 16:26:07 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id DDFA52890A; Tue, 7 May 2019 16:26:07 +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 83716288F7 for ; Tue, 7 May 2019 16:26:07 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id A20666E7FC; Tue, 7 May 2019 16:25:54 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) by gabe.freedesktop.org (Postfix) with ESMTPS id 0D2B489EF7; Tue, 7 May 2019 16:25:51 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga106.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 07 May 2019 09:25:41 -0700 X-ExtLoop1: 1 Received: from nuc.iind.intel.com ([10.99.66.149]) by orsmga001.jf.intel.com with ESMTP; 07 May 2019 09:25:39 -0700 From: Ramalingam C To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, daniel.vetter@intel.com Subject: [PATCH v7 01/11] drm: move content protection property to mode_config Date: Tue, 7 May 2019 21:57:35 +0530 Message-Id: <20190507162745.25600-2-ramalingam.c@intel.com> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20190507162745.25600-1-ramalingam.c@intel.com> References: <20190507162745.25600-1-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: , Cc: gwan-gyeong.mun@intel.com Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP Content protection property is created once and stored in drm_mode_config. And attached to all HDCP capable connectors. Signed-off-by: Ramalingam C Reviewed-by: Daniel Vetter --- drivers/gpu/drm/drm_atomic_uapi.c | 4 ++-- drivers/gpu/drm/drm_connector.c | 13 +++++++------ include/drm/drm_connector.h | 6 ------ include/drm/drm_mode_config.h | 6 ++++++ 4 files changed, 15 insertions(+), 14 deletions(-) diff --git a/drivers/gpu/drm/drm_atomic_uapi.c b/drivers/gpu/drm/drm_atomic_uapi.c index 428d82662dc4..4131e669785a 100644 --- a/drivers/gpu/drm/drm_atomic_uapi.c +++ b/drivers/gpu/drm/drm_atomic_uapi.c @@ -732,7 +732,7 @@ static int drm_atomic_connector_set_property(struct drm_connector *connector, state->content_type = val; } else if (property == connector->scaling_mode_property) { state->scaling_mode = val; - } else if (property == connector->content_protection_property) { + } else if (property == config->content_protection_property) { if (val == DRM_MODE_CONTENT_PROTECTION_ENABLED) { DRM_DEBUG_KMS("only drivers can set CP Enabled\n"); return -EINVAL; @@ -814,7 +814,7 @@ drm_atomic_connector_get_property(struct drm_connector *connector, *val = state->colorspace; } else if (property == connector->scaling_mode_property) { *val = state->scaling_mode; - } else if (property == connector->content_protection_property) { + } else if (property == config->content_protection_property) { *val = state->content_protection; } else if (property == config->writeback_fb_id_property) { /* Writeback framebuffer is one-shot, write and forget */ diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c index 2355124849db..7c0eda9cca60 100644 --- a/drivers/gpu/drm/drm_connector.c +++ b/drivers/gpu/drm/drm_connector.c @@ -1534,18 +1534,19 @@ int drm_connector_attach_content_protection_property( struct drm_connector *connector) { struct drm_device *dev = connector->dev; - struct drm_property *prop; + struct drm_property *prop = + dev->mode_config.content_protection_property; - prop = drm_property_create_enum(dev, 0, "Content Protection", - drm_cp_enum_list, - ARRAY_SIZE(drm_cp_enum_list)); + if (!prop) + prop = drm_property_create_enum(dev, 0, "Content Protection", + drm_cp_enum_list, + ARRAY_SIZE(drm_cp_enum_list)); if (!prop) return -ENOMEM; drm_object_attach_property(&connector->base, prop, DRM_MODE_CONTENT_PROTECTION_UNDESIRED); - - connector->content_protection_property = prop; + dev->mode_config.content_protection_property = prop; return 0; } diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h index f43f40d5888a..2186eec0408b 100644 --- a/include/drm/drm_connector.h +++ b/include/drm/drm_connector.h @@ -1065,12 +1065,6 @@ struct drm_connector { */ struct drm_property *vrr_capable_property; - /** - * @content_protection_property: DRM ENUM property for content - * protection. See drm_connector_attach_content_protection_property(). - */ - struct drm_property *content_protection_property; - /** * @colorspace_property: Connector property to set the suitable * colorspace supported by the sink. diff --git a/include/drm/drm_mode_config.h b/include/drm/drm_mode_config.h index 7f60e8eb269a..5764ee3c7453 100644 --- a/include/drm/drm_mode_config.h +++ b/include/drm/drm_mode_config.h @@ -836,6 +836,12 @@ struct drm_mode_config { */ struct drm_property *writeback_out_fence_ptr_property; + /** + * @content_protection_property: DRM ENUM property for content + * protection. See drm_connector_attach_content_protection_property(). + */ + struct drm_property *content_protection_property; + /* dumb ioctl parameters */ uint32_t preferred_depth, prefer_shadow; From patchwork Tue May 7 16:27:36 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ramalingam C X-Patchwork-Id: 10933283 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 561271390 for ; Tue, 7 May 2019 16:26:05 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 461E92888E for ; Tue, 7 May 2019 16:26:05 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 3A27528906; Tue, 7 May 2019 16:26:05 +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 DFDC22888E for ; Tue, 7 May 2019 16:26:04 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 3BEF96E7F9; Tue, 7 May 2019 16:25:53 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) by gabe.freedesktop.org (Postfix) with ESMTPS id 3E59289C61; Tue, 7 May 2019 16:25:51 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga106.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 07 May 2019 09:25:43 -0700 X-ExtLoop1: 1 Received: from nuc.iind.intel.com ([10.99.66.149]) by orsmga001.jf.intel.com with ESMTP; 07 May 2019 09:25:41 -0700 From: Ramalingam C To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, daniel.vetter@intel.com Subject: [PATCH v7 02/11] drm/i915: debugfs: HDCP2.2 capability read Date: Tue, 7 May 2019 21:57:36 +0530 Message-Id: <20190507162745.25600-3-ramalingam.c@intel.com> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20190507162745.25600-1-ramalingam.c@intel.com> References: <20190507162745.25600-1-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: , Cc: gwan-gyeong.mun@intel.com Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP Adding the HDCP2.2 capability of HDCP src and sink info into debugfs entry "i915_hdcp_sink_capability" This helps the userspace tests to skip the HDCP2.2 test on non HDCP2.2 sinks. v2: Rebased. Signed-off-by: Ramalingam C Reviewed-by: Daniel Vetter --- drivers/gpu/drm/i915/i915_debugfs.c | 13 +++++++++++-- drivers/gpu/drm/i915/intel_hdcp.c | 2 +- drivers/gpu/drm/i915/intel_hdcp.h | 1 + 3 files changed, 13 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index 14cd83e9ea8b..c15d3f3bb8e0 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -4753,6 +4753,7 @@ static int i915_hdcp_sink_capability_show(struct seq_file *m, void *data) { struct drm_connector *connector = m->private; struct intel_connector *intel_connector = to_intel_connector(connector); + bool hdcp_cap, hdcp2_cap; if (connector->status != connector_status_connected) return -ENODEV; @@ -4763,8 +4764,16 @@ static int i915_hdcp_sink_capability_show(struct seq_file *m, void *data) seq_printf(m, "%s:%d HDCP version: ", connector->name, connector->base.id); - seq_printf(m, "%s ", !intel_hdcp_capable(intel_connector) ? - "None" : "HDCP1.4"); + hdcp_cap = intel_hdcp_capable(intel_connector); + hdcp2_cap = intel_hdcp2_capable(intel_connector); + + if (hdcp_cap) + seq_puts(m, "HDCP1.4 "); + if (hdcp2_cap) + seq_puts(m, "HDCP2.2 "); + + if (!hdcp_cap && !hdcp2_cap) + seq_puts(m, "None"); seq_puts(m, "\n"); return 0; diff --git a/drivers/gpu/drm/i915/intel_hdcp.c b/drivers/gpu/drm/i915/intel_hdcp.c index ca5982e45e3e..b8c8d6d1a33d 100644 --- a/drivers/gpu/drm/i915/intel_hdcp.c +++ b/drivers/gpu/drm/i915/intel_hdcp.c @@ -79,7 +79,7 @@ bool intel_hdcp_capable(struct intel_connector *connector) } /* Is HDCP2.2 capable on Platform and Sink */ -static bool intel_hdcp2_capable(struct intel_connector *connector) +bool intel_hdcp2_capable(struct intel_connector *connector) { struct drm_i915_private *dev_priv = to_i915(connector->base.dev); struct intel_digital_port *intel_dig_port = conn_to_dig_port(connector); diff --git a/drivers/gpu/drm/i915/intel_hdcp.h b/drivers/gpu/drm/i915/intel_hdcp.h index a75f25f09d39..be8da85c866a 100644 --- a/drivers/gpu/drm/i915/intel_hdcp.h +++ b/drivers/gpu/drm/i915/intel_hdcp.h @@ -25,6 +25,7 @@ int intel_hdcp_enable(struct intel_connector *connector); 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); +bool intel_hdcp2_capable(struct intel_connector *connector); void intel_hdcp_component_init(struct drm_i915_private *dev_priv); void intel_hdcp_component_fini(struct drm_i915_private *dev_priv); void intel_hdcp_cleanup(struct intel_connector *connector); From patchwork Tue May 7 16:27:37 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ramalingam C X-Patchwork-Id: 10933293 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 CDCFF1398 for ; Tue, 7 May 2019 16:26:13 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id BD79C2888E for ; Tue, 7 May 2019 16:26:13 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id B20E428906; Tue, 7 May 2019 16:26:13 +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 67CA72888E for ; Tue, 7 May 2019 16:26:13 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id EA2E66E7FE; Tue, 7 May 2019 16:25:55 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) by gabe.freedesktop.org (Postfix) with ESMTPS id 63E3189EF7; Tue, 7 May 2019 16:25:51 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga106.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 07 May 2019 09:25:46 -0700 X-ExtLoop1: 1 Received: from nuc.iind.intel.com ([10.99.66.149]) by orsmga001.jf.intel.com with ESMTP; 07 May 2019 09:25:44 -0700 From: Ramalingam C To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, daniel.vetter@intel.com Subject: [PATCH v7 03/11] drm: generic fn converting be24 to cpu and vice versa Date: Tue, 7 May 2019 21:57:37 +0530 Message-Id: <20190507162745.25600-4-ramalingam.c@intel.com> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20190507162745.25600-1-ramalingam.c@intel.com> References: <20190507162745.25600-1-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: , Cc: Tomas Winkler , gwan-gyeong.mun@intel.com Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP Existing functions for converting a 3bytes(be24) of big endian value into u32 of little endian and vice versa are renamed as s/drm_hdcp2_seq_num_to_u32/drm_hdcp_be24_to_cpu s/drm_hdcp2_u32_to_seq_num/drm_hdcp_cpu_to_be24 Signed-off-by: Ramalingam C Suggested-by: Daniel Vetter cc: Tomas Winkler --- drivers/gpu/drm/i915/intel_hdcp.c | 5 +++-- drivers/misc/mei/hdcp/mei_hdcp.c | 2 +- include/drm/drm_hdcp.h | 4 ++-- 3 files changed, 6 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_hdcp.c b/drivers/gpu/drm/i915/intel_hdcp.c index b8c8d6d1a33d..c308dfee9ca4 100644 --- a/drivers/gpu/drm/i915/intel_hdcp.c +++ b/drivers/gpu/drm/i915/intel_hdcp.c @@ -1305,7 +1305,7 @@ int hdcp2_propagate_stream_management_info(struct intel_connector *connector) /* Prepare RepeaterAuth_Stream_Manage msg */ msgs.stream_manage.msg_id = HDCP_2_2_REP_STREAM_MANAGE; - drm_hdcp2_u32_to_seq_num(msgs.stream_manage.seq_num_m, hdcp->seq_num_m); + drm_hdcp_cpu_to_be24(msgs.stream_manage.seq_num_m, hdcp->seq_num_m); /* K no of streams is fixed as 1. Stored as big-endian. */ msgs.stream_manage.k = cpu_to_be16(1); @@ -1370,7 +1370,8 @@ int hdcp2_authenticate_repeater_topology(struct intel_connector *connector) } /* Converting and Storing the seq_num_v to local variable as DWORD */ - seq_num_v = drm_hdcp2_seq_num_to_u32(msgs.recvid_list.seq_num_v); + seq_num_v = + drm_hdcp_be24_to_cpu((const u8 *)msgs.recvid_list.seq_num_v); if (seq_num_v < hdcp->seq_num_v) { /* Roll over of the seq_num_v from repeater. Reauthenticate. */ diff --git a/drivers/misc/mei/hdcp/mei_hdcp.c b/drivers/misc/mei/hdcp/mei_hdcp.c index 90b6ae8e9dae..2f192d6d8b54 100644 --- a/drivers/misc/mei/hdcp/mei_hdcp.c +++ b/drivers/misc/mei/hdcp/mei_hdcp.c @@ -576,7 +576,7 @@ static int mei_hdcp_verify_mprime(struct device *dev, memcpy(verify_mprime_in.m_prime, stream_ready->m_prime, HDCP_2_2_MPRIME_LEN); - drm_hdcp2_u32_to_seq_num(verify_mprime_in.seq_num_m, data->seq_num_m); + drm_hdcp_cpu_to_be24(verify_mprime_in.seq_num_m, data->seq_num_m); memcpy(verify_mprime_in.streams, data->streams, (data->k * sizeof(struct hdcp2_streamid_type))); diff --git a/include/drm/drm_hdcp.h b/include/drm/drm_hdcp.h index f243408ecf26..1cc66df05a43 100644 --- a/include/drm/drm_hdcp.h +++ b/include/drm/drm_hdcp.h @@ -252,13 +252,13 @@ struct hdcp2_rep_stream_ready { * host format and back */ static inline -u32 drm_hdcp2_seq_num_to_u32(u8 seq_num[HDCP_2_2_SEQ_NUM_LEN]) +u32 drm_hdcp_be24_to_cpu(const u8 seq_num[HDCP_2_2_SEQ_NUM_LEN]) { return (u32)(seq_num[2] | seq_num[1] << 8 | seq_num[0] << 16); } static inline -void drm_hdcp2_u32_to_seq_num(u8 seq_num[HDCP_2_2_SEQ_NUM_LEN], u32 val) +void drm_hdcp_cpu_to_be24(u8 seq_num[HDCP_2_2_SEQ_NUM_LEN], u32 val) { seq_num[0] = val >> 16; seq_num[1] = val >> 8; From patchwork Tue May 7 16:27:38 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ramalingam C X-Patchwork-Id: 10933291 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 AE9E41390 for ; Tue, 7 May 2019 16:26:12 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 9C4122888E for ; Tue, 7 May 2019 16:26:12 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 9089A28906; Tue, 7 May 2019 16:26:12 +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 D1DBD2888E for ; Tue, 7 May 2019 16:26:11 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id B7ECA6E803; Tue, 7 May 2019 16:25:55 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) by gabe.freedesktop.org (Postfix) with ESMTPS id 8F74089C61; Tue, 7 May 2019 16:25:51 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga106.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 07 May 2019 09:25:48 -0700 X-ExtLoop1: 1 Received: from nuc.iind.intel.com ([10.99.66.149]) by orsmga001.jf.intel.com with ESMTP; 07 May 2019 09:25:46 -0700 From: Ramalingam C To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, daniel.vetter@intel.com Subject: [PATCH v7 04/11] drm: revocation check at drm subsystem Date: Tue, 7 May 2019 21:57:38 +0530 Message-Id: <20190507162745.25600-5-ramalingam.c@intel.com> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20190507162745.25600-1-ramalingam.c@intel.com> References: <20190507162745.25600-1-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: , Cc: gwan-gyeong.mun@intel.com Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP On every hdcp revocation check request SRM is read from fw file /lib/firmware/display_hdcp_srm.bin SRM table is parsed and stored at drm_hdcp.c, with functions exported for the services for revocation check from drivers (which implements the HDCP authentication) This patch handles the HDCP1.4 and 2.2 versions of SRM table. v2: moved the uAPI to request_firmware_direct() [Daniel] v3: kdoc added. [Daniel] srm_header unified and bit field definitions are removed. [Daniel] locking improved. [Daniel] vrl length violation is fixed. [Daniel] v4: s/__swab16/be16_to_cpu [Daniel] be24_to_cpu is done through a global func [Daniel] Unused variables are removed. [Daniel] unchecked return values are dropped from static funcs [Daniel] Signed-off-by: Ramalingam C Acked-by: Satyeshwar Singh Reviewed-by: Daniel Vetter --- Documentation/gpu/drm-kms-helpers.rst | 6 + drivers/gpu/drm/Makefile | 2 +- drivers/gpu/drm/drm_hdcp.c | 333 ++++++++++++++++++++++++++ drivers/gpu/drm/drm_internal.h | 4 + drivers/gpu/drm/drm_sysfs.c | 2 + include/drm/drm_hdcp.h | 24 ++ 6 files changed, 370 insertions(+), 1 deletion(-) create mode 100644 drivers/gpu/drm/drm_hdcp.c diff --git a/Documentation/gpu/drm-kms-helpers.rst b/Documentation/gpu/drm-kms-helpers.rst index 14102ae035dc..0fe726a6ee67 100644 --- a/Documentation/gpu/drm-kms-helpers.rst +++ b/Documentation/gpu/drm-kms-helpers.rst @@ -181,6 +181,12 @@ Panel Helper Reference .. kernel-doc:: drivers/gpu/drm/drm_panel_orientation_quirks.c :export: +HDCP Helper Functions Reference +=============================== + +.. kernel-doc:: drivers/gpu/drm/drm_hdcp.c + :export: + Display Port Helper Functions Reference ======================================= diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile index 72f5036d9bfa..dd02e9dec810 100644 --- a/drivers/gpu/drm/Makefile +++ b/drivers/gpu/drm/Makefile @@ -17,7 +17,7 @@ drm-y := drm_auth.o drm_cache.o \ drm_plane.o drm_color_mgmt.o drm_print.o \ drm_dumb_buffers.o drm_mode_config.o drm_vblank.o \ drm_syncobj.o drm_lease.o drm_writeback.o drm_client.o \ - drm_atomic_uapi.o + drm_atomic_uapi.o drm_hdcp.o drm-$(CONFIG_DRM_LEGACY) += drm_legacy_misc.o drm_bufs.o drm_context.o drm_dma.o drm_scatter.o drm_lock.o drm-$(CONFIG_DRM_LIB_RANDOM) += lib/drm_random.o diff --git a/drivers/gpu/drm/drm_hdcp.c b/drivers/gpu/drm/drm_hdcp.c new file mode 100644 index 000000000000..5e5409505c31 --- /dev/null +++ b/drivers/gpu/drm/drm_hdcp.c @@ -0,0 +1,333 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2019 Intel Corporation. + * + * Authors: + * Ramalingam C + */ + +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include + +struct hdcp_srm { + u32 revoked_ksv_cnt; + u8 *revoked_ksv_list; + + /* Mutex to protect above struct member */ + struct mutex mutex; +} *srm_data; + +static inline void drm_hdcp_print_ksv(const u8 *ksv) +{ + DRM_DEBUG("\t%#02x, %#02x, %#02x, %#02x, %#02x\n", + ksv[0], ksv[1], ksv[2], ksv[3], ksv[4]); +} + +static u32 drm_hdcp_get_revoked_ksv_count(const u8 *buf, u32 vrls_length) +{ + u32 parsed_bytes = 0, ksv_count = 0, vrl_ksv_cnt, vrl_sz; + + while (parsed_bytes < vrls_length) { + vrl_ksv_cnt = *buf; + ksv_count += vrl_ksv_cnt; + + vrl_sz = (vrl_ksv_cnt * DRM_HDCP_KSV_LEN) + 1; + buf += vrl_sz; + parsed_bytes += vrl_sz; + } + + /* + * When vrls are not valid, ksvs are not considered. + * Hence SRM will be discarded. + */ + if (parsed_bytes != vrls_length) + ksv_count = 0; + + return ksv_count; +} + +static u32 drm_hdcp_get_revoked_ksvs(const u8 *buf, u8 *revoked_ksv_list, + u32 vrls_length) +{ + u32 parsed_bytes = 0, ksv_count = 0; + u32 vrl_ksv_cnt, vrl_ksv_sz, vrl_idx = 0; + + do { + vrl_ksv_cnt = *buf; + vrl_ksv_sz = vrl_ksv_cnt * DRM_HDCP_KSV_LEN; + + buf++; + + DRM_DEBUG("vrl: %d, Revoked KSVs: %d\n", vrl_idx++, + vrl_ksv_cnt); + memcpy(revoked_ksv_list, buf, vrl_ksv_sz); + + ksv_count += vrl_ksv_cnt; + revoked_ksv_list += vrl_ksv_sz; + buf += vrl_ksv_sz; + + parsed_bytes += (vrl_ksv_sz + 1); + } while (parsed_bytes < vrls_length); + + return ksv_count; +} + +static inline u32 get_vrl_length(const u8 *buf) +{ + return drm_hdcp_be24_to_cpu(buf); +} + +static int drm_hdcp_parse_hdcp1_srm(const u8 *buf, size_t count) +{ + struct hdcp_srm_header *header; + u32 vrl_length, ksv_count; + + if (count < (sizeof(struct hdcp_srm_header) + + DRM_HDCP_1_4_VRL_LENGTH_SIZE + DRM_HDCP_1_4_DCP_SIG_SIZE)) { + DRM_ERROR("Invalid blob length\n"); + return -EINVAL; + } + + header = (struct hdcp_srm_header *)buf; + DRM_DEBUG("SRM ID: 0x%x, SRM Ver: 0x%x, SRM Gen No: 0x%x\n", + header->srm_id, + be16_to_cpu(header->srm_version), header->srm_gen_no); + + WARN_ON(header->reserved); + + buf = buf + sizeof(*header); + vrl_length = get_vrl_length(buf); + if (count < (sizeof(struct hdcp_srm_header) + vrl_length) || + vrl_length < (DRM_HDCP_1_4_VRL_LENGTH_SIZE + + DRM_HDCP_1_4_DCP_SIG_SIZE)) { + DRM_ERROR("Invalid blob length or vrl length\n"); + return -EINVAL; + } + + /* Length of the all vrls combined */ + vrl_length -= (DRM_HDCP_1_4_VRL_LENGTH_SIZE + + DRM_HDCP_1_4_DCP_SIG_SIZE); + + if (!vrl_length) { + DRM_ERROR("No vrl found\n"); + return -EINVAL; + } + + buf += DRM_HDCP_1_4_VRL_LENGTH_SIZE; + ksv_count = drm_hdcp_get_revoked_ksv_count(buf, vrl_length); + if (!ksv_count) { + DRM_DEBUG("Revoked KSV count is 0\n"); + return count; + } + + kfree(srm_data->revoked_ksv_list); + srm_data->revoked_ksv_list = kcalloc(ksv_count, DRM_HDCP_KSV_LEN, + GFP_KERNEL); + if (!srm_data->revoked_ksv_list) { + DRM_ERROR("Out of Memory\n"); + return -ENOMEM; + } + + if (drm_hdcp_get_revoked_ksvs(buf, srm_data->revoked_ksv_list, + vrl_length) != ksv_count) { + srm_data->revoked_ksv_cnt = 0; + kfree(srm_data->revoked_ksv_list); + return -EINVAL; + } + + srm_data->revoked_ksv_cnt = ksv_count; + return count; +} + +static int drm_hdcp_parse_hdcp2_srm(const u8 *buf, size_t count) +{ + struct hdcp_srm_header *header; + u32 vrl_length, ksv_count, ksv_sz; + + if (count < (sizeof(struct hdcp_srm_header) + + DRM_HDCP_2_VRL_LENGTH_SIZE + DRM_HDCP_2_DCP_SIG_SIZE)) { + DRM_ERROR("Invalid blob length\n"); + return -EINVAL; + } + + header = (struct hdcp_srm_header *)buf; + DRM_DEBUG("SRM ID: 0x%x, SRM Ver: 0x%x, SRM Gen No: 0x%x\n", + header->srm_id & DRM_HDCP_SRM_ID_MASK, + be16_to_cpu(header->srm_version), header->srm_gen_no); + + if (header->reserved) + return -EINVAL; + + buf = buf + sizeof(*header); + vrl_length = get_vrl_length(buf); + + if (count < (sizeof(struct hdcp_srm_header) + vrl_length) || + vrl_length < (DRM_HDCP_2_VRL_LENGTH_SIZE + + DRM_HDCP_2_DCP_SIG_SIZE)) { + DRM_ERROR("Invalid blob length or vrl length\n"); + return -EINVAL; + } + + /* Length of the all vrls combined */ + vrl_length -= (DRM_HDCP_2_VRL_LENGTH_SIZE + + DRM_HDCP_2_DCP_SIG_SIZE); + + if (!vrl_length) { + DRM_ERROR("No vrl found\n"); + return -EINVAL; + } + + buf += DRM_HDCP_2_VRL_LENGTH_SIZE; + ksv_count = (*buf << 2) | DRM_HDCP_2_KSV_COUNT_2_LSBITS(*(buf + 1)); + if (!ksv_count) { + DRM_DEBUG("Revoked KSV count is 0\n"); + return count; + } + + kfree(srm_data->revoked_ksv_list); + srm_data->revoked_ksv_list = kcalloc(ksv_count, DRM_HDCP_KSV_LEN, + GFP_KERNEL); + if (!srm_data->revoked_ksv_list) { + DRM_ERROR("Out of Memory\n"); + return -ENOMEM; + } + + ksv_sz = ksv_count * DRM_HDCP_KSV_LEN; + buf += DRM_HDCP_2_NO_OF_DEV_PLUS_RESERVED_SZ; + + DRM_DEBUG("Revoked KSVs: %d\n", ksv_count); + memcpy(srm_data->revoked_ksv_list, buf, ksv_sz); + + srm_data->revoked_ksv_cnt = ksv_count; + return count; +} + +static inline bool is_srm_version_hdcp1(const u8 *buf) +{ + return *buf == (u8)(DRM_HDCP_1_4_SRM_ID << 4); +} + +static inline bool is_srm_version_hdcp2(const u8 *buf) +{ + return *buf == (u8)(DRM_HDCP_2_SRM_ID << 4 | DRM_HDCP_2_INDICATOR); +} + +static void drm_hdcp_srm_update(const u8 *buf, size_t count) +{ + if (count < sizeof(struct hdcp_srm_header)) + return; + + if (is_srm_version_hdcp1(buf)) + drm_hdcp_parse_hdcp1_srm(buf, count); + else if (is_srm_version_hdcp2(buf)) + drm_hdcp_parse_hdcp2_srm(buf, count); +} + +void drm_hdcp_request_srm(struct drm_device *drm_dev) +{ + char fw_name[36] = "display_hdcp_srm.bin"; + const struct firmware *fw; + + int ret; + + ret = request_firmware_direct(&fw, (const char *)fw_name, + drm_dev->dev); + if (ret < 0) + goto exit; + + if (fw->size && fw->data) + drm_hdcp_srm_update(fw->data, fw->size); + +exit: + release_firmware(fw); +} + +/** + * drm_hdcp_check_ksvs_revoked - Check the revoked status of the IDs + * + * @drm_dev: drm_device for which HDCP revocation check is requested + * @ksvs: List of KSVs (HDCP receiver IDs) + * @ksv_count: KSV count passed in through @ksvs + * + * This function reads the HDCP System renewability Message(SRM Table) + * from userspace as a firmware and parses it for the revoked HDCP + * KSVs(Receiver IDs) detected by DCP LLC. Once the revoked KSVs are known, + * revoked state of the KSVs in the list passed in by display drivers are + * decided and response is sent. + * + * SRM should be presented in the name of "display_hdcp_srm.bin". + * + * Returns: + * TRUE on any of the KSV is revoked, else FALSE. + */ +bool drm_hdcp_check_ksvs_revoked(struct drm_device *drm_dev, u8 *ksvs, + u32 ksv_count) +{ + u32 rev_ksv_cnt, cnt, i, j; + u8 *rev_ksv_list; + + if (!srm_data) + return false; + + mutex_lock(&srm_data->mutex); + drm_hdcp_request_srm(drm_dev); + + rev_ksv_cnt = srm_data->revoked_ksv_cnt; + rev_ksv_list = srm_data->revoked_ksv_list; + + /* If the Revoked ksv list is empty */ + if (!rev_ksv_cnt || !rev_ksv_list) { + mutex_unlock(&srm_data->mutex); + return false; + } + + for (cnt = 0; cnt < ksv_count; cnt++) { + rev_ksv_list = srm_data->revoked_ksv_list; + for (i = 0; i < rev_ksv_cnt; i++) { + for (j = 0; j < DRM_HDCP_KSV_LEN; j++) + if (ksvs[j] != rev_ksv_list[j]) { + break; + } else if (j == (DRM_HDCP_KSV_LEN - 1)) { + DRM_DEBUG("Revoked KSV is "); + drm_hdcp_print_ksv(ksvs); + mutex_unlock(&srm_data->mutex); + return true; + } + /* Move the offset to next KSV in the revoked list */ + rev_ksv_list += DRM_HDCP_KSV_LEN; + } + + /* Iterate to next ksv_offset */ + ksvs += DRM_HDCP_KSV_LEN; + } + mutex_unlock(&srm_data->mutex); + return false; +} +EXPORT_SYMBOL_GPL(drm_hdcp_check_ksvs_revoked); + +int drm_setup_hdcp_srm(struct class *drm_class) +{ + srm_data = kzalloc(sizeof(*srm_data), GFP_KERNEL); + if (!srm_data) + return -ENOMEM; + mutex_init(&srm_data->mutex); + + return 0; +} + +void drm_teardown_hdcp_srm(struct class *drm_class) +{ + if (srm_data) { + kfree(srm_data->revoked_ksv_list); + kfree(srm_data); + } +} diff --git a/drivers/gpu/drm/drm_internal.h b/drivers/gpu/drm/drm_internal.h index e19ac7ca602d..476a422414f6 100644 --- a/drivers/gpu/drm/drm_internal.h +++ b/drivers/gpu/drm/drm_internal.h @@ -201,3 +201,7 @@ int drm_syncobj_query_ioctl(struct drm_device *dev, void *data, void drm_framebuffer_print_info(struct drm_printer *p, unsigned int indent, const struct drm_framebuffer *fb); int drm_framebuffer_debugfs_init(struct drm_minor *minor); + +/* drm_hdcp.c */ +int drm_setup_hdcp_srm(struct class *drm_class); +void drm_teardown_hdcp_srm(struct class *drm_class); diff --git a/drivers/gpu/drm/drm_sysfs.c b/drivers/gpu/drm/drm_sysfs.c index ecb7b33002bb..18b1ac442997 100644 --- a/drivers/gpu/drm/drm_sysfs.c +++ b/drivers/gpu/drm/drm_sysfs.c @@ -78,6 +78,7 @@ int drm_sysfs_init(void) } drm_class->devnode = drm_devnode; + drm_setup_hdcp_srm(drm_class); return 0; } @@ -90,6 +91,7 @@ void drm_sysfs_destroy(void) { if (IS_ERR_OR_NULL(drm_class)) return; + drm_teardown_hdcp_srm(drm_class); class_remove_file(drm_class, &class_attr_version.attr); class_destroy(drm_class); drm_class = NULL; diff --git a/include/drm/drm_hdcp.h b/include/drm/drm_hdcp.h index 1cc66df05a43..2f0335d0a50f 100644 --- a/include/drm/drm_hdcp.h +++ b/include/drm/drm_hdcp.h @@ -265,4 +265,28 @@ void drm_hdcp_cpu_to_be24(u8 seq_num[HDCP_2_2_SEQ_NUM_LEN], u32 val) seq_num[2] = val; } +#define DRM_HDCP_SRM_GEN1_MAX_BYTES (5 * 1024) +#define DRM_HDCP_1_4_SRM_ID 0x8 +#define DRM_HDCP_SRM_ID_MASK (0xF << 4) +#define DRM_HDCP_1_4_VRL_LENGTH_SIZE 3 +#define DRM_HDCP_1_4_DCP_SIG_SIZE 40 +#define DRM_HDCP_2_SRM_ID 0x9 +#define DRM_HDCP_2_INDICATOR 0x1 +#define DRM_HDCP_2_INDICATOR_MASK 0xF +#define DRM_HDCP_2_VRL_LENGTH_SIZE 3 +#define DRM_HDCP_2_DCP_SIG_SIZE 384 +#define DRM_HDCP_2_NO_OF_DEV_PLUS_RESERVED_SZ 4 +#define DRM_HDCP_2_KSV_COUNT_2_LSBITS(byte) (((byte) & 0xC) >> 6) + +struct hdcp_srm_header { + u8 srm_id; + u8 reserved; + __be16 srm_version; + u8 srm_gen_no; +} __packed; + +struct drm_device; + +bool drm_hdcp_check_ksvs_revoked(struct drm_device *dev, + u8 *ksvs, u32 ksv_count); #endif From patchwork Tue May 7 16:27:39 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ramalingam C X-Patchwork-Id: 10933307 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 F2BBD1398 for ; Tue, 7 May 2019 16:26:20 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E25472888E for ; Tue, 7 May 2019 16:26:20 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id D6BCB28906; Tue, 7 May 2019 16:26:20 +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 7C3E42888E for ; Tue, 7 May 2019 16:26:20 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 46E636E809; Tue, 7 May 2019 16:26:00 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) by gabe.freedesktop.org (Postfix) with ESMTPS id AC0DF89EF7; Tue, 7 May 2019 16:25:51 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga106.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 07 May 2019 09:25:50 -0700 X-ExtLoop1: 1 Received: from nuc.iind.intel.com ([10.99.66.149]) by orsmga001.jf.intel.com with ESMTP; 07 May 2019 09:25:48 -0700 From: Ramalingam C To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, daniel.vetter@intel.com Subject: [PATCH v7 05/11] drm/i915: SRM revocation check for HDCP1.4 and 2.2 Date: Tue, 7 May 2019 21:57:39 +0530 Message-Id: <20190507162745.25600-6-ramalingam.c@intel.com> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20190507162745.25600-1-ramalingam.c@intel.com> References: <20190507162745.25600-1-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: , Cc: gwan-gyeong.mun@intel.com Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP DRM HDCP SRM revocation check services are used from I915 for HDCP1.4 and 2.2 revocation check during the respective authentication flow. v2: Rebased. v3: %s/*_ksvs_revocated/*_check_ksvs_revoked [Daniel] unwanted noise is removed. Signed-off-by: Ramalingam C Reviewed-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_hdcp.c | 45 ++++++++++++++++++++++++++----- 1 file changed, 38 insertions(+), 7 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_hdcp.c b/drivers/gpu/drm/i915/intel_hdcp.c index c308dfee9ca4..53df2f2376e8 100644 --- a/drivers/gpu/drm/i915/intel_hdcp.c +++ b/drivers/gpu/drm/i915/intel_hdcp.c @@ -491,9 +491,11 @@ int intel_hdcp_validate_v_prime(struct intel_digital_port *intel_dig_port, /* Implements Part 2 of the HDCP authorization procedure */ static -int intel_hdcp_auth_downstream(struct intel_digital_port *intel_dig_port, - const struct intel_hdcp_shim *shim) +int intel_hdcp_auth_downstream(struct intel_connector *connector) { + struct intel_digital_port *intel_dig_port = conn_to_dig_port(connector); + const struct intel_hdcp_shim *shim = connector->hdcp.shim; + struct drm_device *dev = connector->base.dev; u8 bstatus[2], num_downstream, *ksv_fifo; int ret, i, tries = 3; @@ -532,6 +534,11 @@ int intel_hdcp_auth_downstream(struct intel_digital_port *intel_dig_port, if (ret) goto err; + if (drm_hdcp_check_ksvs_revoked(dev, ksv_fifo, num_downstream)) { + DRM_ERROR("Revoked Ksv(s) in ksv_fifo\n"); + return -EPERM; + } + /* * When V prime mismatches, DP Spec mandates re-read of * V prime atleast twice. @@ -558,9 +565,12 @@ int intel_hdcp_auth_downstream(struct intel_digital_port *intel_dig_port, } /* Implements Part 1 of the HDCP authorization procedure */ -static int intel_hdcp_auth(struct intel_digital_port *intel_dig_port, - const struct intel_hdcp_shim *shim) +static int intel_hdcp_auth(struct intel_connector *connector) { + struct intel_digital_port *intel_dig_port = conn_to_dig_port(connector); + struct intel_hdcp *hdcp = &connector->hdcp; + struct drm_device *dev = connector->base.dev; + const struct intel_hdcp_shim *shim = hdcp->shim; struct drm_i915_private *dev_priv; enum port port; unsigned long r0_prime_gen_start; @@ -626,6 +636,11 @@ static int intel_hdcp_auth(struct intel_digital_port *intel_dig_port, if (ret < 0) return ret; + if (drm_hdcp_check_ksvs_revoked(dev, bksv.shim, 1)) { + DRM_ERROR("BKSV is revoked\n"); + return -EPERM; + } + I915_WRITE(PORT_HDCP_BKSVLO(port), bksv.reg[0]); I915_WRITE(PORT_HDCP_BKSVHI(port), bksv.reg[1]); @@ -699,7 +714,7 @@ static int intel_hdcp_auth(struct intel_digital_port *intel_dig_port, */ if (repeater_present) - return intel_hdcp_auth_downstream(intel_dig_port, shim); + return intel_hdcp_auth_downstream(connector); DRM_DEBUG_KMS("HDCP is enabled (no repeater present)\n"); return 0; @@ -762,7 +777,7 @@ static int _intel_hdcp_enable(struct intel_connector *connector) /* Incase of authentication failures, HDCP spec expects reauth. */ for (i = 0; i < tries; i++) { - ret = intel_hdcp_auth(conn_to_dig_port(connector), hdcp->shim); + ret = intel_hdcp_auth(connector); if (!ret) { hdcp->hdcp_encrypted = true; return 0; @@ -1161,6 +1176,7 @@ static int hdcp2_authentication_key_exchange(struct intel_connector *connector) { struct intel_digital_port *intel_dig_port = conn_to_dig_port(connector); struct intel_hdcp *hdcp = &connector->hdcp; + struct drm_device *dev = connector->base.dev; union { struct hdcp2_ake_init ake_init; struct hdcp2_ake_send_cert send_cert; @@ -1195,6 +1211,12 @@ static int hdcp2_authentication_key_exchange(struct intel_connector *connector) hdcp->is_repeater = HDCP_2_2_RX_REPEATER(msgs.send_cert.rx_caps[2]); + if (drm_hdcp_check_ksvs_revoked(dev, msgs.send_cert.cert_rx.receiver_id, + 1)) { + DRM_ERROR("Receiver ID is revoked\n"); + return -EPERM; + } + /* * Here msgs.no_stored_km will hold msgs corresponding to the km * stored also. @@ -1347,13 +1369,14 @@ int hdcp2_authenticate_repeater_topology(struct intel_connector *connector) { struct intel_digital_port *intel_dig_port = conn_to_dig_port(connector); struct intel_hdcp *hdcp = &connector->hdcp; + struct drm_device *dev = connector->base.dev; union { struct hdcp2_rep_send_receiverid_list recvid_list; struct hdcp2_rep_send_ack rep_ack; } msgs; const struct intel_hdcp_shim *shim = hdcp->shim; + u32 seq_num_v, device_cnt; u8 *rx_info; - u32 seq_num_v; int ret; ret = shim->read_2_2_msg(intel_dig_port, HDCP_2_2_REP_SEND_RECVID_LIST, @@ -1379,6 +1402,14 @@ int hdcp2_authenticate_repeater_topology(struct intel_connector *connector) return -EINVAL; } + device_cnt = HDCP_2_2_DEV_COUNT_HI(rx_info[0]) << 4 || + HDCP_2_2_DEV_COUNT_LO(rx_info[1]); + if (drm_hdcp_check_ksvs_revoked(dev, msgs.recvid_list.receiver_ids, + device_cnt)) { + DRM_ERROR("Revoked receiver ID(s) is in list\n"); + return -EPERM; + } + ret = hdcp2_verify_rep_topology_prepare_ack(connector, &msgs.recvid_list, &msgs.rep_ack); From patchwork Tue May 7 16:27:40 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ramalingam C X-Patchwork-Id: 10933289 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 AC2E41390 for ; Tue, 7 May 2019 16:26:10 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 9C065288F7 for ; Tue, 7 May 2019 16:26:10 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 909C82890A; Tue, 7 May 2019 16:26:10 +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 20631288F7 for ; Tue, 7 May 2019 16:26:10 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id A28366E7FF; Tue, 7 May 2019 16:25:54 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) by gabe.freedesktop.org (Postfix) with ESMTPS id 5EF066E7FB; Tue, 7 May 2019 16:25:53 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga106.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 07 May 2019 09:25:52 -0700 X-ExtLoop1: 1 Received: from nuc.iind.intel.com ([10.99.66.149]) by orsmga001.jf.intel.com with ESMTP; 07 May 2019 09:25:50 -0700 From: Ramalingam C To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, daniel.vetter@intel.com Subject: [PATCH v7 06/11] drm/hdcp: gathering hdcp related code into drm_hdcp.c Date: Tue, 7 May 2019 21:57:40 +0530 Message-Id: <20190507162745.25600-7-ramalingam.c@intel.com> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20190507162745.25600-1-ramalingam.c@intel.com> References: <20190507162745.25600-1-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: , Cc: gwan-gyeong.mun@intel.com Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP Considering the significant size of hdcp related code in drm, all hdcp related codes are moved into separate file called drm_hdcp.c. v2: Rebased. v2: Rebased. Signed-off-by: Ramalingam C Suggested-by: Daniel Vetter Reviewed-by: Daniel Vetter --- drivers/gpu/drm/drm_connector.c | 44 ------------------------------ drivers/gpu/drm/drm_hdcp.c | 47 +++++++++++++++++++++++++++++++++ include/drm/drm_connector.h | 2 -- include/drm/drm_hdcp.h | 3 +++ 4 files changed, 50 insertions(+), 46 deletions(-) diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c index 7c0eda9cca60..764c7903edf6 100644 --- a/drivers/gpu/drm/drm_connector.c +++ b/drivers/gpu/drm/drm_connector.c @@ -823,13 +823,6 @@ static const struct drm_prop_enum_list drm_tv_subconnector_enum_list[] = { DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name, drm_tv_subconnector_enum_list) -static struct drm_prop_enum_list drm_cp_enum_list[] = { - { DRM_MODE_CONTENT_PROTECTION_UNDESIRED, "Undesired" }, - { DRM_MODE_CONTENT_PROTECTION_DESIRED, "Desired" }, - { DRM_MODE_CONTENT_PROTECTION_ENABLED, "Enabled" }, -}; -DRM_ENUM_NAME_FN(drm_get_content_protection_name, drm_cp_enum_list) - static const struct drm_prop_enum_list hdmi_colorspaces[] = { /* For Default case, driver will set the colorspace */ { DRM_MODE_COLORIMETRY_DEFAULT, "Default" }, @@ -1515,43 +1508,6 @@ int drm_connector_attach_scaling_mode_property(struct drm_connector *connector, } EXPORT_SYMBOL(drm_connector_attach_scaling_mode_property); -/** - * drm_connector_attach_content_protection_property - attach content protection - * property - * - * @connector: connector to attach CP property on. - * - * This is used to add support for content protection on select connectors. - * Content Protection is intentionally vague to allow for different underlying - * technologies, however it is most implemented by HDCP. - * - * The content protection will be set to &drm_connector_state.content_protection - * - * Returns: - * Zero on success, negative errno on failure. - */ -int drm_connector_attach_content_protection_property( - struct drm_connector *connector) -{ - struct drm_device *dev = connector->dev; - struct drm_property *prop = - dev->mode_config.content_protection_property; - - if (!prop) - prop = drm_property_create_enum(dev, 0, "Content Protection", - drm_cp_enum_list, - ARRAY_SIZE(drm_cp_enum_list)); - if (!prop) - return -ENOMEM; - - drm_object_attach_property(&connector->base, prop, - DRM_MODE_CONTENT_PROTECTION_UNDESIRED); - dev->mode_config.content_protection_property = prop; - - return 0; -} -EXPORT_SYMBOL(drm_connector_attach_content_protection_property); - /** * drm_mode_create_aspect_ratio_property - create aspect ratio property * @dev: DRM device diff --git a/drivers/gpu/drm/drm_hdcp.c b/drivers/gpu/drm/drm_hdcp.c index 5e5409505c31..0da7b3718bad 100644 --- a/drivers/gpu/drm/drm_hdcp.c +++ b/drivers/gpu/drm/drm_hdcp.c @@ -17,6 +17,9 @@ #include #include #include +#include +#include +#include struct hdcp_srm { u32 revoked_ksv_cnt; @@ -331,3 +334,47 @@ void drm_teardown_hdcp_srm(struct class *drm_class) kfree(srm_data); } } + +static struct drm_prop_enum_list drm_cp_enum_list[] = { + { DRM_MODE_CONTENT_PROTECTION_UNDESIRED, "Undesired" }, + { DRM_MODE_CONTENT_PROTECTION_DESIRED, "Desired" }, + { DRM_MODE_CONTENT_PROTECTION_ENABLED, "Enabled" }, +}; +DRM_ENUM_NAME_FN(drm_get_content_protection_name, drm_cp_enum_list) + +/** + * drm_connector_attach_content_protection_property - attach content protection + * property + * + * @connector: connector to attach CP property on. + * + * This is used to add support for content protection on select connectors. + * Content Protection is intentionally vague to allow for different underlying + * technologies, however it is most implemented by HDCP. + * + * The content protection will be set to &drm_connector_state.content_protection + * + * Returns: + * Zero on success, negative errno on failure. + */ +int drm_connector_attach_content_protection_property( + struct drm_connector *connector) +{ + struct drm_device *dev = connector->dev; + struct drm_property *prop = + dev->mode_config.content_protection_property; + + if (!prop) + prop = drm_property_create_enum(dev, 0, "Content Protection", + drm_cp_enum_list, + ARRAY_SIZE(drm_cp_enum_list)); + if (!prop) + return -ENOMEM; + + drm_object_attach_property(&connector->base, prop, + DRM_MODE_CONTENT_PROTECTION_UNDESIRED); + dev->mode_config.content_protection_property = prop; + + return 0; +} +EXPORT_SYMBOL(drm_connector_attach_content_protection_property); diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h index 2186eec0408b..e257b879b72c 100644 --- a/include/drm/drm_connector.h +++ b/include/drm/drm_connector.h @@ -1343,8 +1343,6 @@ int drm_connector_attach_scaling_mode_property(struct drm_connector *connector, u32 scaling_mode_mask); int drm_connector_attach_vrr_capable_property( struct drm_connector *connector); -int drm_connector_attach_content_protection_property( - struct drm_connector *connector); int drm_mode_create_aspect_ratio_property(struct drm_device *dev); int drm_mode_create_colorspace_property(struct drm_connector *connector); int drm_mode_create_content_type_property(struct drm_device *dev); diff --git a/include/drm/drm_hdcp.h b/include/drm/drm_hdcp.h index 2f0335d0a50f..13771a496e2b 100644 --- a/include/drm/drm_hdcp.h +++ b/include/drm/drm_hdcp.h @@ -286,7 +286,10 @@ struct hdcp_srm_header { } __packed; struct drm_device; +struct drm_connector; bool drm_hdcp_check_ksvs_revoked(struct drm_device *dev, u8 *ksvs, u32 ksv_count); +int drm_connector_attach_content_protection_property( + struct drm_connector *connector); #endif From patchwork Tue May 7 16:27:41 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ramalingam C X-Patchwork-Id: 10933305 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 DB9F21390 for ; Tue, 7 May 2019 16:26:19 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id CB5E42888E for ; Tue, 7 May 2019 16:26:19 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id BFD4A28906; Tue, 7 May 2019 16:26:19 +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 32D532888E for ; Tue, 7 May 2019 16:26:19 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 9B2EA6E806; Tue, 7 May 2019 16:25:59 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) by gabe.freedesktop.org (Postfix) with ESMTPS id 4094C6E7FB; Tue, 7 May 2019 16:25:55 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga106.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 07 May 2019 09:25:55 -0700 X-ExtLoop1: 1 Received: from nuc.iind.intel.com ([10.99.66.149]) by orsmga001.jf.intel.com with ESMTP; 07 May 2019 09:25:53 -0700 From: Ramalingam C To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, daniel.vetter@intel.com Subject: [PATCH v7 07/11] drm: Add Content protection type property Date: Tue, 7 May 2019 21:57:41 +0530 Message-Id: <20190507162745.25600-8-ramalingam.c@intel.com> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20190507162745.25600-1-ramalingam.c@intel.com> References: <20190507162745.25600-1-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: , Cc: gwan-gyeong.mun@intel.com Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP This patch adds a DRM ENUM property to the selected connectors. This property is used for mentioning the protected content's type from userspace to kernel HDCP authentication. Type of the stream is decided by the protected content providers. Type 0 content can be rendered on any HDCP protected display wires. But Type 1 content can be rendered only on HDCP2.2 protected paths. So when a userspace sets this property to Type 1 and starts the HDCP enable, kernel will honour it only if HDCP2.2 authentication is through for type 1. Else HDCP enable will be failed. Need ACK for this new conenctor property from userspace consumer. v2: cp_content_type is replaced with content_protection_type [daniel] check at atomic_set_property is removed [Maarten] v3: %s/content_protection_type/hdcp_content_type [Pekka] v4: property is created for the first requested connector and then reused. [Danvet] v5: kernel doc nits addressed [Daniel] Rebased as part of patch reordering. Signed-off-by: Ramalingam C Reviewed-by: Daniel Vetter --- drivers/gpu/drm/drm_atomic_uapi.c | 4 ++++ drivers/gpu/drm/drm_connector.c | 18 ++++++++++++++++ drivers/gpu/drm/drm_hdcp.c | 36 ++++++++++++++++++++++++++++++- drivers/gpu/drm/i915/intel_hdcp.c | 4 +++- include/drm/drm_connector.h | 7 ++++++ include/drm/drm_hdcp.h | 2 +- include/drm/drm_mode_config.h | 6 ++++++ include/uapi/drm/drm_mode.h | 4 ++++ 8 files changed, 78 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/drm_atomic_uapi.c b/drivers/gpu/drm/drm_atomic_uapi.c index 4131e669785a..a85f3ccfe699 100644 --- a/drivers/gpu/drm/drm_atomic_uapi.c +++ b/drivers/gpu/drm/drm_atomic_uapi.c @@ -738,6 +738,8 @@ static int drm_atomic_connector_set_property(struct drm_connector *connector, return -EINVAL; } state->content_protection = val; + } else if (property == config->hdcp_content_type_property) { + state->hdcp_content_type = val; } else if (property == connector->colorspace_property) { state->colorspace = val; } else if (property == config->writeback_fb_id_property) { @@ -816,6 +818,8 @@ drm_atomic_connector_get_property(struct drm_connector *connector, *val = state->scaling_mode; } else if (property == config->content_protection_property) { *val = state->content_protection; + } else if (property == config->hdcp_content_type_property) { + *val = state->hdcp_content_type; } else if (property == config->writeback_fb_id_property) { /* Writeback framebuffer is one-shot, write and forget */ *val = 0; diff --git a/drivers/gpu/drm/drm_connector.c b/drivers/gpu/drm/drm_connector.c index 764c7903edf6..de9e06583e8c 100644 --- a/drivers/gpu/drm/drm_connector.c +++ b/drivers/gpu/drm/drm_connector.c @@ -955,6 +955,24 @@ static const struct drm_prop_enum_list hdmi_colorspaces[] = { * the value transitions from ENABLED to DESIRED. This signifies the link * is no longer protected and userspace should take appropriate action * (whatever that might be). + * HDCP Content Type: + * This property is used by the userspace to configure the kernel with + * to be displayed stream's content type. Content Type of a stream is + * decided by the owner of the stream, as HDCP Type0 or HDCP Type1. + * + * The value of the property can be one the below: + * - DRM_MODE_HDCP_CONTENT_TYPE0 = 0 + * HDCP Type0 streams can be transmitted on a link which is + * encrypted with HDCP 1.4 or HDCP 2.2. + * - DRM_MODE_HDCP_CONTENT_TYPE1 = 1 + * HDCP Type1 streams can be transmitted on a link which is + * encrypted only with HDCP 2.2. + * + * Note that the HDCP Content Type property is specific to HDCP 2.2, and + * defaults to type 0. It is only exposed by drivers supporting HDCP 2.2 + * If content type is changed when content_protection is not UNDESIRED, + * then kernel will disable the HDCP and re-enable with new type in the + * same atomic commit * * max bpc: * This range property is used by userspace to limit the bit depth. When diff --git a/drivers/gpu/drm/drm_hdcp.c b/drivers/gpu/drm/drm_hdcp.c index 0da7b3718bad..75402463466b 100644 --- a/drivers/gpu/drm/drm_hdcp.c +++ b/drivers/gpu/drm/drm_hdcp.c @@ -342,23 +342,41 @@ static struct drm_prop_enum_list drm_cp_enum_list[] = { }; DRM_ENUM_NAME_FN(drm_get_content_protection_name, drm_cp_enum_list) +static struct drm_prop_enum_list drm_hdcp_content_type_enum_list[] = { + { DRM_MODE_HDCP_CONTENT_TYPE0, "HDCP Type0" }, + { DRM_MODE_HDCP_CONTENT_TYPE1, "HDCP Type1" }, +}; +DRM_ENUM_NAME_FN(drm_get_hdcp_content_type_name, + drm_hdcp_content_type_enum_list) + /** * drm_connector_attach_content_protection_property - attach content protection * property * * @connector: connector to attach CP property on. + * @hdcp_content_type: is HDCP Content Type property needed for connector * * This is used to add support for content protection on select connectors. * Content Protection is intentionally vague to allow for different underlying * technologies, however it is most implemented by HDCP. * + * When hdcp_content_type is true enum property called HDCP Content Type is + * created (if it is not already) and attached to the connector. + * + * This property is used for sending the protected content's stream type + * from userspace to kernel on selected connectors. Protected content provider + * will decide their type of their content and declare the same to kernel. + * + * Content type will be used during the HDCP 2.2 authentication. + * Content type will be set to &drm_connector_state.hdcp_content_type. + * * The content protection will be set to &drm_connector_state.content_protection * * Returns: * Zero on success, negative errno on failure. */ int drm_connector_attach_content_protection_property( - struct drm_connector *connector) + struct drm_connector *connector, bool hdcp_content_type) { struct drm_device *dev = connector->dev; struct drm_property *prop = @@ -375,6 +393,22 @@ int drm_connector_attach_content_protection_property( DRM_MODE_CONTENT_PROTECTION_UNDESIRED); dev->mode_config.content_protection_property = prop; + if (!hdcp_content_type) + return 0; + + prop = dev->mode_config.hdcp_content_type_property; + if (!prop) + prop = drm_property_create_enum(dev, 0, "HDCP Content Type", + drm_hdcp_content_type_enum_list, + ARRAY_SIZE( + drm_hdcp_content_type_enum_list)); + if (!prop) + return -ENOMEM; + + drm_object_attach_property(&connector->base, prop, + DRM_MODE_HDCP_CONTENT_TYPE0); + dev->mode_config.hdcp_content_type_property = prop; + return 0; } EXPORT_SYMBOL(drm_connector_attach_content_protection_property); diff --git a/drivers/gpu/drm/i915/intel_hdcp.c b/drivers/gpu/drm/i915/intel_hdcp.c index 53df2f2376e8..be6c81addca0 100644 --- a/drivers/gpu/drm/i915/intel_hdcp.c +++ b/drivers/gpu/drm/i915/intel_hdcp.c @@ -1829,7 +1829,9 @@ int intel_hdcp_init(struct intel_connector *connector, if (!shim) return -EINVAL; - ret = drm_connector_attach_content_protection_property(&connector->base); + ret = + drm_connector_attach_content_protection_property(&connector->base, + false); if (ret) return ret; diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h index e257b879b72c..65005240c561 100644 --- a/include/drm/drm_connector.h +++ b/include/drm/drm_connector.h @@ -560,6 +560,12 @@ struct drm_connector_state { */ unsigned int content_type; + /** + * @hdcp_content_type: Connector property to pass the type of + * protected content. This is most commonly used for HDCP. + */ + unsigned int hdcp_content_type; + /** * @scaling_mode: Connector property to control the * upscaling, mostly used for built-in panels. @@ -1330,6 +1336,7 @@ const char *drm_get_dvi_i_select_name(int val); const char *drm_get_tv_subconnector_name(int val); const char *drm_get_tv_select_name(int val); const char *drm_get_content_protection_name(int val); +const char *drm_get_hdcp_content_type_name(int val); int drm_mode_create_dvi_i_properties(struct drm_device *dev); int drm_mode_create_tv_margin_properties(struct drm_device *dev); diff --git a/include/drm/drm_hdcp.h b/include/drm/drm_hdcp.h index 13771a496e2b..2970abdfaf12 100644 --- a/include/drm/drm_hdcp.h +++ b/include/drm/drm_hdcp.h @@ -291,5 +291,5 @@ struct drm_connector; bool drm_hdcp_check_ksvs_revoked(struct drm_device *dev, u8 *ksvs, u32 ksv_count); int drm_connector_attach_content_protection_property( - struct drm_connector *connector); + struct drm_connector *connector, bool hdcp_content_type); #endif diff --git a/include/drm/drm_mode_config.h b/include/drm/drm_mode_config.h index 5764ee3c7453..b359b5b71eb9 100644 --- a/include/drm/drm_mode_config.h +++ b/include/drm/drm_mode_config.h @@ -842,6 +842,12 @@ struct drm_mode_config { */ struct drm_property *content_protection_property; + /** + * @hdcp_content_type_property: DRM ENUM property for type of + * Protected Content. + */ + struct drm_property *hdcp_content_type_property; + /* dumb ioctl parameters */ uint32_t preferred_depth, prefer_shadow; diff --git a/include/uapi/drm/drm_mode.h b/include/uapi/drm/drm_mode.h index 83cd1636b9be..8ac03351fdee 100644 --- a/include/uapi/drm/drm_mode.h +++ b/include/uapi/drm/drm_mode.h @@ -209,6 +209,10 @@ extern "C" { #define DRM_MODE_CONTENT_PROTECTION_DESIRED 1 #define DRM_MODE_CONTENT_PROTECTION_ENABLED 2 +/* Content Type classification for HDCP2.2 vs others */ +#define DRM_MODE_HDCP_CONTENT_TYPE0 0 +#define DRM_MODE_HDCP_CONTENT_TYPE1 1 + struct drm_mode_modeinfo { __u32 clock; __u16 hdisplay; From patchwork Tue May 7 16:27:42 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ramalingam C X-Patchwork-Id: 10933303 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 628311390 for ; Tue, 7 May 2019 16:26:18 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 510E82888E for ; Tue, 7 May 2019 16:26:18 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 4529028906; Tue, 7 May 2019 16:26:18 +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 B2B4B2888E for ; Tue, 7 May 2019 16:26:17 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 7E6716E7FB; Tue, 7 May 2019 16:25:59 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) by gabe.freedesktop.org (Postfix) with ESMTPS id 763366E806; Tue, 7 May 2019 16:25:57 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga106.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 07 May 2019 09:25:57 -0700 X-ExtLoop1: 1 Received: from nuc.iind.intel.com ([10.99.66.149]) by orsmga001.jf.intel.com with ESMTP; 07 May 2019 09:25:55 -0700 From: Ramalingam C To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, daniel.vetter@intel.com Subject: [PATCH v7 08/11] drm/i915: Attach content type property Date: Tue, 7 May 2019 21:57:42 +0530 Message-Id: <20190507162745.25600-9-ramalingam.c@intel.com> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20190507162745.25600-1-ramalingam.c@intel.com> References: <20190507162745.25600-1-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: , Cc: gwan-gyeong.mun@intel.com 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/intel_ddi.c | 39 +++++++++++++++++++++++----- drivers/gpu/drm/i915/intel_hdcp.c | 43 ++++++++++++++++++++----------- drivers/gpu/drm/i915/intel_hdcp.h | 2 +- 3 files changed, 62 insertions(+), 22 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c index cd5277d98b03..0ffba18613b2 100644 --- a/drivers/gpu/drm/i915/intel_ddi.c +++ b/drivers/gpu/drm/i915/intel_ddi.c @@ -3490,7 +3490,8 @@ 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, @@ -3559,15 +3560,41 @@ 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/intel_hdcp.c b/drivers/gpu/drm/i915/intel_hdcp.c index be6c81addca0..69522687b2cb 100644 --- a/drivers/gpu/drm/i915/intel_hdcp.c +++ b/drivers/gpu/drm/i915/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/intel_hdcp.h b/drivers/gpu/drm/i915/intel_hdcp.h index be8da85c866a..13555b054930 100644 --- a/drivers/gpu/drm/i915/intel_hdcp.h +++ b/drivers/gpu/drm/i915/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); From patchwork Tue May 7 16:27:43 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ramalingam C X-Patchwork-Id: 10933309 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 A6B9A1390 for ; Tue, 7 May 2019 16:26:22 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 96A2A2888E for ; Tue, 7 May 2019 16:26:22 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 7FCA02891B; Tue, 7 May 2019 16:26:22 +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 2A227288F7 for ; Tue, 7 May 2019 16:26:22 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 38D256E80C; Tue, 7 May 2019 16:26:01 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) by gabe.freedesktop.org (Postfix) with ESMTPS id 9B5F86E809; Tue, 7 May 2019 16:25:59 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga106.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 07 May 2019 09:25:59 -0700 X-ExtLoop1: 1 Received: from nuc.iind.intel.com ([10.99.66.149]) by orsmga001.jf.intel.com with ESMTP; 07 May 2019 09:25:57 -0700 From: Ramalingam C To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, daniel.vetter@intel.com Subject: [PATCH v7 09/11] drm: uevent for connector status change Date: Tue, 7 May 2019 21:57:43 +0530 Message-Id: <20190507162745.25600-10-ramalingam.c@intel.com> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20190507162745.25600-1-ramalingam.c@intel.com> References: <20190507162745.25600-1-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: , Cc: gwan-gyeong.mun@intel.com Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP DRM API for generating uevent for a status changes of connector's property. This uevent will have following details related to the status change: HOTPLUG=1, CONNECTOR= and PROPERTY= Need ACK from this uevent from userspace consumer. v2: Minor fixes at KDoc comments [Daniel] v3: Check the property is really attached with connector [Daniel] Signed-off-by: Ramalingam C Reviewed-by: Daniel Vetter --- drivers/gpu/drm/drm_sysfs.c | 35 +++++++++++++++++++++++++++++++++++ include/drm/drm_sysfs.h | 5 ++++- 2 files changed, 39 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/drm_sysfs.c b/drivers/gpu/drm/drm_sysfs.c index 18b1ac442997..63fa951a20db 100644 --- a/drivers/gpu/drm/drm_sysfs.c +++ b/drivers/gpu/drm/drm_sysfs.c @@ -21,6 +21,7 @@ #include #include #include "drm_internal.h" +#include "drm_crtc_internal.h" #define to_drm_minor(d) dev_get_drvdata(d) #define to_drm_connector(d) dev_get_drvdata(d) @@ -320,6 +321,9 @@ void drm_sysfs_lease_event(struct drm_device *dev) * Send a uevent for the DRM device specified by @dev. Currently we only * set HOTPLUG=1 in the uevent environment, but this could be expanded to * deal with other types of events. + * + * Any new uapi should be using the drm_sysfs_connector_status_event() + * for uevents on connector status change. */ void drm_sysfs_hotplug_event(struct drm_device *dev) { @@ -332,6 +336,37 @@ void drm_sysfs_hotplug_event(struct drm_device *dev) } EXPORT_SYMBOL(drm_sysfs_hotplug_event); +/** + * drm_sysfs_connector_status_event - generate a DRM uevent for connector + * property status change + * @connector: connector on which property status changed + * @property: connector property whoes status changed. + * + * Send a uevent for the DRM device specified by @dev. Currently we + * set HOTPLUG=1 and connector id along with the attached property id + * related to the status change. + */ +void drm_sysfs_connector_status_event(struct drm_connector *connector, + struct drm_property *property) +{ + struct drm_device *dev = connector->dev; + char hotplug_str[] = "HOTPLUG=1", conn_id[30], prop_id[30]; + char *envp[4] = { hotplug_str, conn_id, prop_id, NULL }; + + WARN_ON(!drm_mode_obj_find_prop_id(&connector->base, + property->base.id)); + + snprintf(conn_id, ARRAY_SIZE(conn_id), + "CONNECTOR=%u", connector->base.id); + snprintf(prop_id, ARRAY_SIZE(prop_id), + "PROPERTY=%u", property->base.id); + + DRM_DEBUG("generating connector status event\n"); + + kobject_uevent_env(&dev->primary->kdev->kobj, KOBJ_CHANGE, envp); +} +EXPORT_SYMBOL(drm_sysfs_connector_status_event); + static void drm_sysfs_release(struct device *dev) { kfree(dev); diff --git a/include/drm/drm_sysfs.h b/include/drm/drm_sysfs.h index 4f311e836cdc..d454ef617b2c 100644 --- a/include/drm/drm_sysfs.h +++ b/include/drm/drm_sysfs.h @@ -4,10 +4,13 @@ struct drm_device; struct device; +struct drm_connector; +struct drm_property; int drm_class_device_register(struct device *dev); void drm_class_device_unregister(struct device *dev); void drm_sysfs_hotplug_event(struct drm_device *dev); - +void drm_sysfs_connector_status_event(struct drm_connector *connector, + struct drm_property *property); #endif From patchwork Tue May 7 16:27:44 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ramalingam C X-Patchwork-Id: 10933317 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 A98BB1398 for ; Tue, 7 May 2019 16:26:25 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 98DBD2888E for ; Tue, 7 May 2019 16:26:25 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 8C5F828906; Tue, 7 May 2019 16:26:25 +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 4780A2888E for ; Tue, 7 May 2019 16:26:25 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 505636E813; Tue, 7 May 2019 16:26:05 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) by gabe.freedesktop.org (Postfix) with ESMTPS id CE7986E80F; Tue, 7 May 2019 16:26:01 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga106.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 07 May 2019 09:26:01 -0700 X-ExtLoop1: 1 Received: from nuc.iind.intel.com ([10.99.66.149]) by orsmga001.jf.intel.com with ESMTP; 07 May 2019 09:25:59 -0700 From: Ramalingam C To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, daniel.vetter@intel.com Subject: [PATCH v7 10/11] drm/hdcp: update content protection property with uevent Date: Tue, 7 May 2019 21:57:44 +0530 Message-Id: <20190507162745.25600-11-ramalingam.c@intel.com> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20190507162745.25600-1-ramalingam.c@intel.com> References: <20190507162745.25600-1-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: , Cc: gwan-gyeong.mun@intel.com Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP drm function is defined and exported to update a connector's content protection property state and to generate a uevent along with it. Need ACK for the uevent from userspace consumer. v2: Update only when state is different from old one. v3: KDoc is added [Daniel] Signed-off-by: Ramalingam C Reviewed-by: Daniel Vetter --- drivers/gpu/drm/drm_hdcp.c | 32 ++++++++++++++++++++++++++++++++ include/drm/drm_hdcp.h | 2 ++ 2 files changed, 34 insertions(+) diff --git a/drivers/gpu/drm/drm_hdcp.c b/drivers/gpu/drm/drm_hdcp.c index 75402463466b..f29b7abda51f 100644 --- a/drivers/gpu/drm/drm_hdcp.c +++ b/drivers/gpu/drm/drm_hdcp.c @@ -372,6 +372,10 @@ DRM_ENUM_NAME_FN(drm_get_hdcp_content_type_name, * * The content protection will be set to &drm_connector_state.content_protection * + * When kernel triggered content protection state change like DESIRED->ENABLED + * and ENABLED->DESIRED, will use drm_hdcp_update_content_protection() to update + * the content protection state of a connector. + * * Returns: * Zero on success, negative errno on failure. */ @@ -412,3 +416,31 @@ int drm_connector_attach_content_protection_property( return 0; } EXPORT_SYMBOL(drm_connector_attach_content_protection_property); + +/** + * drm_hdcp_update_content_protection - Updates the content protection state + * of a connector + * + * @connector: drm_connector on which content protection state needs an update + * @val: New state of the content protection property + * + * This function can be used by display drivers, to update the kernel triggered + * content protection state change of a drm_connector. This function update the + * new state of the property into the connector's state and generate an uevent + * to notify the userspace. + */ +void drm_hdcp_update_content_protection(struct drm_connector *connector, + u64 val) +{ + struct drm_device *dev = connector->dev; + struct drm_connector_state *state = connector->state; + + WARN_ON(!drm_modeset_is_locked(&dev->mode_config.connection_mutex)); + if (state->content_protection == val) + return; + + state->content_protection = val; + drm_sysfs_connector_status_event(connector, + dev->mode_config.content_protection_property); +} +EXPORT_SYMBOL(drm_hdcp_update_content_protection); diff --git a/include/drm/drm_hdcp.h b/include/drm/drm_hdcp.h index 2970abdfaf12..dd864ac9ce85 100644 --- a/include/drm/drm_hdcp.h +++ b/include/drm/drm_hdcp.h @@ -292,4 +292,6 @@ bool drm_hdcp_check_ksvs_revoked(struct drm_device *dev, u8 *ksvs, u32 ksv_count); int drm_connector_attach_content_protection_property( struct drm_connector *connector, bool hdcp_content_type); +void drm_hdcp_update_content_protection(struct drm_connector *connector, + u64 val); #endif From patchwork Tue May 7 16:27:45 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ramalingam C X-Patchwork-Id: 10933319 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 2D9031398 for ; Tue, 7 May 2019 16:26:27 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 1E8AB2888E for ; Tue, 7 May 2019 16:26:27 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 1198428906; Tue, 7 May 2019 16:26:27 +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=-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 C463E2888E for ; Tue, 7 May 2019 16:26:26 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id B81CE6E80F; Tue, 7 May 2019 16:26:05 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) by gabe.freedesktop.org (Postfix) with ESMTPS id 0160F6E80F; Tue, 7 May 2019 16:26:03 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga106.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 07 May 2019 09:26:03 -0700 X-ExtLoop1: 1 Received: from nuc.iind.intel.com ([10.99.66.149]) by orsmga001.jf.intel.com with ESMTP; 07 May 2019 09:26:01 -0700 From: Ramalingam C To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, daniel.vetter@intel.com Subject: [PATCH v7 11/11] drm/i915: update the hdcp state with uevent Date: Tue, 7 May 2019 21:57:45 +0530 Message-Id: <20190507162745.25600-12-ramalingam.c@intel.com> X-Mailer: git-send-email 2.19.1 In-Reply-To: <20190507162745.25600-1-ramalingam.c@intel.com> References: <20190507162745.25600-1-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: , Cc: gwan-gyeong.mun@intel.com Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP drm function to update the content protection property state and to generate a uevent is invoked from the intel hdcp property work. Hence whenever kernel changes the property state, userspace will be updated with a uevent. Need a ACK for uevent generating uAPI from userspace. v2: state update is moved into drm function [daniel] Signed-off-by: Ramalingam C Reviewed-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_hdcp.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_hdcp.c b/drivers/gpu/drm/i915/intel_hdcp.c index 69522687b2cb..8abd69551ead 100644 --- a/drivers/gpu/drm/i915/intel_hdcp.c +++ b/drivers/gpu/drm/i915/intel_hdcp.c @@ -865,7 +865,6 @@ static void intel_hdcp_prop_work(struct work_struct *work) prop_work); struct intel_connector *connector = intel_hdcp_to_connector(hdcp); struct drm_device *dev = connector->base.dev; - struct drm_connector_state *state; drm_modeset_lock(&dev->mode_config.connection_mutex, NULL); mutex_lock(&hdcp->mutex); @@ -875,10 +874,9 @@ static void intel_hdcp_prop_work(struct work_struct *work) * those to UNDESIRED is handled by core. If value == UNDESIRED, * we're running just after hdcp has been disabled, so just exit */ - if (hdcp->value != DRM_MODE_CONTENT_PROTECTION_UNDESIRED) { - state = connector->base.state; - state->content_protection = hdcp->value; - } + if (hdcp->value != DRM_MODE_CONTENT_PROTECTION_UNDESIRED) + drm_hdcp_update_content_protection(&connector->base, + hdcp->value); mutex_unlock(&hdcp->mutex); drm_modeset_unlock(&dev->mode_config.connection_mutex);