From patchwork Thu Jan 31 06:59:17 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ramalingam C X-Patchwork-Id: 10789711 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 8DEDA13BF for ; Thu, 31 Jan 2019 07:06:00 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 8A7732EFB4 for ; Thu, 31 Jan 2019 07:06:00 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 7EA2A300F7; Thu, 31 Jan 2019 07:06:00 +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 0C20B2EFB4 for ; Thu, 31 Jan 2019 07:05:59 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 29F0D6E662; Thu, 31 Jan 2019 07:05:59 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by gabe.freedesktop.org (Postfix) with ESMTPS id 88BAF6E661; Thu, 31 Jan 2019 07:05:55 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 30 Jan 2019 23:05:55 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,543,1539673200"; d="scan'208";a="114128024" Received: from mint-dev.iind.intel.com ([10.223.25.164]) by orsmga008.jf.intel.com with ESMTP; 30 Jan 2019 23:05:51 -0800 From: Ramalingam C To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, daniel.vetter@ffwll.ch, tomas.winkler@intel.com, uma.shankar@intel.com Date: Thu, 31 Jan 2019 12:29:17 +0530 Message-Id: <1548917996-28081-2-git-send-email-ramalingam.c@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> References: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> Subject: [Intel-gfx] [PATCH v10 01/40] components: multiple components for a device X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "Rafael J . Wysocki" , Takashi Iwai , Jaroslav Kysela , Greg Kroah-Hartman , Russell King MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP From: Daniel Vetter Component framework is extended to support multiple components for a struct device. These will be matched with different masters based on its sub component value. We are introducing this, as I915 needs two different components with different subcomponent value, which will be matched to two different component masters(Audio and HDCP) based on the subcomponent values. Signed-off-by: Daniel Vetter Signed-off-by: Ramalingam C cc: Greg Kroah-Hartman cc: Russell King cc: Rafael J. Wysocki cc: Jaroslav Kysela cc: Takashi Iwai cc: Rodrigo Vivi cc: Jani Nikula --- drivers/base/component.c | 67 +++++++++++++++++++++++++++++++++++++++-------- include/linux/component.h | 5 ++++ 2 files changed, 61 insertions(+), 11 deletions(-) diff --git a/drivers/base/component.c b/drivers/base/component.c index ddcea8739c12..30309c0449ed 100644 --- a/drivers/base/component.c +++ b/drivers/base/component.c @@ -21,6 +21,7 @@ struct component; struct component_match_array { void *data; int (*compare)(struct device *, void *); + int (*compare_typed)(struct device *, int, void *); void (*release)(struct device *, void *); struct component *component; bool duplicate; @@ -48,6 +49,7 @@ struct component { bool bound; const struct component_ops *ops; + int subcomponent; struct device *dev; }; @@ -132,7 +134,7 @@ static struct master *__master_find(struct device *dev, } static struct component *find_component(struct master *master, - int (*compare)(struct device *, void *), void *compare_data) + struct component_match_array *mc) { struct component *c; @@ -140,8 +142,13 @@ static struct component *find_component(struct master *master, if (c->master && c->master != master) continue; - if (compare(c->dev, compare_data)) + if (mc->compare_typed) { + if (mc->compare_typed(c->dev, c->subcomponent, + mc->data)) + return c; + } else if (mc->compare(c->dev, mc->data)) { return c; + } } return NULL; @@ -166,7 +173,7 @@ static int find_components(struct master *master) if (match->compare[i].component) continue; - c = find_component(master, mc->compare, mc->data); + c = find_component(master, mc); if (!c) { ret = -ENXIO; break; @@ -301,15 +308,12 @@ static int component_match_realloc(struct device *dev, return 0; } -/* - * Add a component to be matched, with a release function. - * - * The match array is first created or extended if necessary. - */ -void component_match_add_release(struct device *master, +static void __component_match_add(struct device *master, struct component_match **matchptr, void (*release)(struct device *, void *), - int (*compare)(struct device *, void *), void *compare_data) + int (*compare)(struct device *, void *), + int (*compare_typed)(struct device *, int, void *), + void *compare_data) { struct component_match *match = *matchptr; @@ -341,13 +345,37 @@ void component_match_add_release(struct device *master, } match->compare[match->num].compare = compare; + match->compare[match->num].compare_typed = compare_typed; match->compare[match->num].release = release; match->compare[match->num].data = compare_data; match->compare[match->num].component = NULL; match->num++; } + +/* + * Add a component to be matched, with a release function. + * + * The match array is first created or extended if necessary. + */ +void component_match_add_release(struct device *master, + struct component_match **matchptr, + void (*release)(struct device *, void *), + int (*compare)(struct device *, void *), void *compare_data) +{ + __component_match_add(master, matchptr, release, compare, NULL, + compare_data); +} EXPORT_SYMBOL(component_match_add_release); +void component_match_add_typed(struct device *master, + struct component_match **matchptr, + int (*compare_typed)(struct device *, int, void *), void *compare_data) +{ + __component_match_add(master, matchptr, NULL, NULL, compare_typed, + compare_data); +} +EXPORT_SYMBOL(component_match_add_typed); + static void free_master(struct master *master) { struct component_match *match = master->match; @@ -537,7 +565,8 @@ int component_bind_all(struct device *master_dev, void *data) } EXPORT_SYMBOL_GPL(component_bind_all); -int component_add(struct device *dev, const struct component_ops *ops) +static int __component_add(struct device *dev, const struct component_ops *ops, + int subcomponent) { struct component *component; int ret; @@ -548,6 +577,7 @@ int component_add(struct device *dev, const struct component_ops *ops) component->ops = ops; component->dev = dev; + component->subcomponent = subcomponent; dev_dbg(dev, "adding component (ops %ps)\n", ops); @@ -566,6 +596,21 @@ int component_add(struct device *dev, const struct component_ops *ops) return ret < 0 ? ret : 0; } + +int component_add_typed(struct device *dev, const struct component_ops *ops, + int subcomponent) +{ + if (WARN_ON(subcomponent == 0)) + return -EINVAL; + + return __component_add(dev, ops, subcomponent); +} +EXPORT_SYMBOL_GPL(component_add_typed); + +int component_add(struct device *dev, const struct component_ops *ops) +{ + return __component_add(dev, ops, 0); +} EXPORT_SYMBOL_GPL(component_add); void component_del(struct device *dev, const struct component_ops *ops) diff --git a/include/linux/component.h b/include/linux/component.h index e71fbbbc74e2..6d7516f0546e 100644 --- a/include/linux/component.h +++ b/include/linux/component.h @@ -14,6 +14,8 @@ struct component_ops { }; int component_add(struct device *, const struct component_ops *); +int component_add_typed(struct device *dev, const struct component_ops *ops, + int subcomponent); void component_del(struct device *, const struct component_ops *); int component_bind_all(struct device *master, void *master_data); @@ -37,6 +39,9 @@ void component_match_add_release(struct device *master, struct component_match **matchptr, void (*release)(struct device *, void *), int (*compare)(struct device *, void *), void *compare_data); +void component_match_add_typed(struct device *master, + struct component_match **matchptr, + int (*compare_typed)(struct device *, int, void *), void *compare_data); static inline void component_match_add(struct device *master, struct component_match **matchptr, From patchwork Thu Jan 31 06:59:18 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ramalingam C X-Patchwork-Id: 10789715 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 7258B13BF for ; Thu, 31 Jan 2019 07:06:04 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 6ED782EFB4 for ; Thu, 31 Jan 2019 07:06:04 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 629F6300F7; Thu, 31 Jan 2019 07:06:04 +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 007112EFB4 for ; Thu, 31 Jan 2019 07:06:03 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 361366E665; Thu, 31 Jan 2019 07:06:03 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by gabe.freedesktop.org (Postfix) with ESMTPS id E147F6E664; Thu, 31 Jan 2019 07:05:59 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 30 Jan 2019 23:05:59 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,543,1539673200"; d="scan'208";a="114128047" Received: from mint-dev.iind.intel.com ([10.223.25.164]) by orsmga008.jf.intel.com with ESMTP; 30 Jan 2019 23:05:55 -0800 From: Ramalingam C To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, daniel.vetter@ffwll.ch, tomas.winkler@intel.com, uma.shankar@intel.com Date: Thu, 31 Jan 2019 12:29:18 +0530 Message-Id: <1548917996-28081-3-git-send-email-ramalingam.c@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> References: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> Subject: [Intel-gfx] [PATCH v10 02/40] i915/snd_hdac: I915 subcomponent for the snd_hdac X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "Rafael J . Wysocki" , Takashi Iwai , Jaroslav Kysela , Greg Kroah-Hartman , Russell King MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP From: Daniel Vetter Since we need multiple components for I915 for different purposes (Audio & Mei_hdcp), we adopt the subcomponents methodology introduced by the previous patch (mentioned below). Author: Daniel Vetter Date: Mon Jan 28 17:08:20 2019 +0530 components: multiple components for a device Signed-off-by: Daniel Vetter Signed-off-by: Ramalingam C cc: Greg Kroah-Hartman cc: Russell King cc: Rafael J. Wysocki cc: Jaroslav Kysela cc: Takashi Iwai cc: Rodrigo Vivi cc: Jani Nikula Reviewed-by: Takashi Iwai --- drivers/gpu/drm/i915/intel_audio.c | 4 +++- include/drm/i915_component.h | 4 ++++ include/sound/hda_component.h | 5 +++-- sound/hda/hdac_component.c | 4 ++-- sound/hda/hdac_i915.c | 6 ++++-- 5 files changed, 16 insertions(+), 7 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_audio.c b/drivers/gpu/drm/i915/intel_audio.c index de26cd0a5497..5104c6bbd66f 100644 --- a/drivers/gpu/drm/i915/intel_audio.c +++ b/drivers/gpu/drm/i915/intel_audio.c @@ -984,7 +984,9 @@ void i915_audio_component_init(struct drm_i915_private *dev_priv) { int ret; - ret = component_add(dev_priv->drm.dev, &i915_audio_component_bind_ops); + ret = component_add_typed(dev_priv->drm.dev, + &i915_audio_component_bind_ops, + I915_COMPONENT_AUDIO); if (ret < 0) { DRM_ERROR("failed to add audio component (%d)\n", ret); /* continue with reduced functionality */ diff --git a/include/drm/i915_component.h b/include/drm/i915_component.h index fca22d463e1b..72fbb037f9b3 100644 --- a/include/drm/i915_component.h +++ b/include/drm/i915_component.h @@ -26,6 +26,10 @@ #include "drm_audio_component.h" +enum i915_component_type { + I915_COMPONENT_AUDIO = 1, +}; + /* MAX_PORT is the number of port * It must be sync with I915_MAX_PORTS defined i915_drv.h */ diff --git a/include/sound/hda_component.h b/include/sound/hda_component.h index 2ec31b358950..d4804c72d959 100644 --- a/include/sound/hda_component.h +++ b/include/sound/hda_component.h @@ -20,7 +20,7 @@ int snd_hdac_acomp_get_eld(struct hdac_device *codec, hda_nid_t nid, int dev_id, bool *audio_enabled, char *buffer, int max_bytes); int snd_hdac_acomp_init(struct hdac_bus *bus, const struct drm_audio_component_audio_ops *aops, - int (*match_master)(struct device *, void *), + int (*match_master)(struct device *, int, void *), size_t extra_size); int snd_hdac_acomp_exit(struct hdac_bus *bus); int snd_hdac_acomp_register_notifier(struct hdac_bus *bus, @@ -47,7 +47,8 @@ static inline int snd_hdac_acomp_get_eld(struct hdac_device *codec, hda_nid_t ni } static inline int snd_hdac_acomp_init(struct hdac_bus *bus, const struct drm_audio_component_audio_ops *aops, - int (*match_master)(struct device *, void *), + int (*match_master)(struct device *, + int, void *), size_t extra_size) { return -ENODEV; diff --git a/sound/hda/hdac_component.c b/sound/hda/hdac_component.c index a6d37b9d6413..5c95933e739a 100644 --- a/sound/hda/hdac_component.c +++ b/sound/hda/hdac_component.c @@ -269,7 +269,7 @@ EXPORT_SYMBOL_GPL(snd_hdac_acomp_register_notifier); */ int snd_hdac_acomp_init(struct hdac_bus *bus, const struct drm_audio_component_audio_ops *aops, - int (*match_master)(struct device *, void *), + int (*match_master)(struct device *, int, void *), size_t extra_size) { struct component_match *match = NULL; @@ -288,7 +288,7 @@ int snd_hdac_acomp_init(struct hdac_bus *bus, bus->audio_component = acomp; devres_add(dev, acomp); - component_match_add(dev, &match, match_master, bus); + component_match_add_typed(dev, &match, match_master, bus); ret = component_master_add_with_match(dev, &hdac_component_master_ops, match); if (ret < 0) diff --git a/sound/hda/hdac_i915.c b/sound/hda/hdac_i915.c index 617ff1aa818f..7aee090e3d27 100644 --- a/sound/hda/hdac_i915.c +++ b/sound/hda/hdac_i915.c @@ -82,9 +82,11 @@ void snd_hdac_i915_set_bclk(struct hdac_bus *bus) } EXPORT_SYMBOL_GPL(snd_hdac_i915_set_bclk); -static int i915_component_master_match(struct device *dev, void *data) +static int i915_component_master_match(struct device *dev, int subcomponent, + void *data) { - return !strcmp(dev->driver->name, "i915"); + return !strcmp(dev->driver->name, "i915") && + subcomponent == I915_COMPONENT_AUDIO; } /* check whether intel graphics is present */ From patchwork Thu Jan 31 06:59:19 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ramalingam C X-Patchwork-Id: 10789717 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 7666013BF for ; Thu, 31 Jan 2019 07:06:05 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 733D12EFB4 for ; Thu, 31 Jan 2019 07:06:05 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 67469300F7; Thu, 31 Jan 2019 07:06:05 +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 06EB32EFB4 for ; Thu, 31 Jan 2019 07:06:05 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 2E2506E666; Thu, 31 Jan 2019 07:06:04 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by gabe.freedesktop.org (Postfix) with ESMTPS id 75BA16E666; Thu, 31 Jan 2019 07:06:02 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 30 Jan 2019 23:06:02 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,543,1539673200"; d="scan'208";a="114128109" Received: from mint-dev.iind.intel.com ([10.223.25.164]) by orsmga008.jf.intel.com with ESMTP; 30 Jan 2019 23:06:00 -0800 From: Ramalingam C To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, daniel.vetter@ffwll.ch, tomas.winkler@intel.com, uma.shankar@intel.com Date: Thu, 31 Jan 2019 12:29:19 +0530 Message-Id: <1548917996-28081-4-git-send-email-ramalingam.c@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> References: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> Subject: [Intel-gfx] [PATCH v10 03/40] drm/i915: Gathering the HDCP1.4 routines together X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP All HDCP1.4 routines are gathered together, followed by the generic functions those can be extended for HDCP2.2 too. Signed-off-by: Ramalingam C Acked-by: Daniel Vetter Reviewed-by: Uma Shankar --- drivers/gpu/drm/i915/intel_hdcp.c | 118 +++++++++++++++++++------------------- 1 file changed, 59 insertions(+), 59 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_hdcp.c b/drivers/gpu/drm/i915/intel_hdcp.c index ce7ba3a9c000..8cb85b07cfde 100644 --- a/drivers/gpu/drm/i915/intel_hdcp.c +++ b/drivers/gpu/drm/i915/intel_hdcp.c @@ -730,6 +730,65 @@ struct intel_connector *intel_hdcp_to_connector(struct intel_hdcp *hdcp) return container_of(hdcp, struct intel_connector, hdcp); } +/* Implements Part 3 of the HDCP authorization procedure */ +int intel_hdcp_check_link(struct intel_connector *connector) +{ + struct intel_hdcp *hdcp = &connector->hdcp; + struct drm_i915_private *dev_priv = connector->base.dev->dev_private; + struct intel_digital_port *intel_dig_port = conn_to_dig_port(connector); + enum port port = intel_dig_port->base.port; + int ret = 0; + + if (!hdcp->shim) + return -ENOENT; + + mutex_lock(&hdcp->mutex); + + if (hdcp->value == DRM_MODE_CONTENT_PROTECTION_UNDESIRED) + goto out; + + if (!(I915_READ(PORT_HDCP_STATUS(port)) & HDCP_STATUS_ENC)) { + DRM_ERROR("%s:%d HDCP check failed: link is not encrypted,%x\n", + connector->base.name, connector->base.base.id, + I915_READ(PORT_HDCP_STATUS(port))); + ret = -ENXIO; + hdcp->value = DRM_MODE_CONTENT_PROTECTION_DESIRED; + schedule_work(&hdcp->prop_work); + goto out; + } + + if (hdcp->shim->check_link(intel_dig_port)) { + if (hdcp->value != DRM_MODE_CONTENT_PROTECTION_UNDESIRED) { + hdcp->value = DRM_MODE_CONTENT_PROTECTION_ENABLED; + schedule_work(&hdcp->prop_work); + } + goto out; + } + + DRM_DEBUG_KMS("[%s:%d] HDCP link failed, retrying authentication\n", + connector->base.name, connector->base.base.id); + + ret = _intel_hdcp_disable(connector); + if (ret) { + DRM_ERROR("Failed to disable hdcp (%d)\n", ret); + hdcp->value = DRM_MODE_CONTENT_PROTECTION_DESIRED; + schedule_work(&hdcp->prop_work); + goto out; + } + + ret = _intel_hdcp_enable(connector); + if (ret) { + DRM_ERROR("Failed to enable hdcp (%d)\n", ret); + hdcp->value = DRM_MODE_CONTENT_PROTECTION_DESIRED; + schedule_work(&hdcp->prop_work); + goto out; + } + +out: + mutex_unlock(&hdcp->mutex); + return ret; +} + static void intel_hdcp_check_work(struct work_struct *work) { struct intel_hdcp *hdcp = container_of(to_delayed_work(work), @@ -866,62 +925,3 @@ void intel_hdcp_atomic_check(struct drm_connector *connector, new_state->crtc); crtc_state->mode_changed = true; } - -/* Implements Part 3 of the HDCP authorization procedure */ -int intel_hdcp_check_link(struct intel_connector *connector) -{ - struct intel_hdcp *hdcp = &connector->hdcp; - struct drm_i915_private *dev_priv = connector->base.dev->dev_private; - struct intel_digital_port *intel_dig_port = conn_to_dig_port(connector); - enum port port = intel_dig_port->base.port; - int ret = 0; - - if (!hdcp->shim) - return -ENOENT; - - mutex_lock(&hdcp->mutex); - - if (hdcp->value == DRM_MODE_CONTENT_PROTECTION_UNDESIRED) - goto out; - - if (!(I915_READ(PORT_HDCP_STATUS(port)) & HDCP_STATUS_ENC)) { - DRM_ERROR("%s:%d HDCP check failed: link is not encrypted,%x\n", - connector->base.name, connector->base.base.id, - I915_READ(PORT_HDCP_STATUS(port))); - ret = -ENXIO; - hdcp->value = DRM_MODE_CONTENT_PROTECTION_DESIRED; - schedule_work(&hdcp->prop_work); - goto out; - } - - if (hdcp->shim->check_link(intel_dig_port)) { - if (hdcp->value != DRM_MODE_CONTENT_PROTECTION_UNDESIRED) { - hdcp->value = DRM_MODE_CONTENT_PROTECTION_ENABLED; - schedule_work(&hdcp->prop_work); - } - goto out; - } - - DRM_DEBUG_KMS("[%s:%d] HDCP link failed, retrying authentication\n", - connector->base.name, connector->base.base.id); - - ret = _intel_hdcp_disable(connector); - if (ret) { - DRM_ERROR("Failed to disable hdcp (%d)\n", ret); - hdcp->value = DRM_MODE_CONTENT_PROTECTION_DESIRED; - schedule_work(&hdcp->prop_work); - goto out; - } - - ret = _intel_hdcp_enable(connector); - if (ret) { - DRM_DEBUG_KMS("Failed to enable hdcp (%d)\n", ret); - hdcp->value = DRM_MODE_CONTENT_PROTECTION_DESIRED; - schedule_work(&hdcp->prop_work); - goto out; - } - -out: - mutex_unlock(&hdcp->mutex); - return ret; -} From patchwork Thu Jan 31 06:59:20 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Ramalingam C X-Patchwork-Id: 10789721 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 BB48813BF for ; Thu, 31 Jan 2019 07:06:08 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B766F2EFB4 for ; Thu, 31 Jan 2019 07:06:08 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id AA82C300F7; Thu, 31 Jan 2019 07:06:08 +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 363D12EFB4 for ; Thu, 31 Jan 2019 07:06:08 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 47C136E669; Thu, 31 Jan 2019 07:06:07 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by gabe.freedesktop.org (Postfix) with ESMTPS id 16D596E669; Thu, 31 Jan 2019 07:06:05 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 30 Jan 2019 23:06:04 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,543,1539673200"; d="scan'208";a="114128128" Received: from mint-dev.iind.intel.com ([10.223.25.164]) by orsmga008.jf.intel.com with ESMTP; 30 Jan 2019 23:06:02 -0800 From: Ramalingam C To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, daniel.vetter@ffwll.ch, tomas.winkler@intel.com, uma.shankar@intel.com Date: Thu, 31 Jan 2019 12:29:20 +0530 Message-Id: <1548917996-28081-5-git-send-email-ramalingam.c@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> References: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v10 04/40] drm: header for i915 - MEI_HDCP interface X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP Header defines the interface for the I915 and MEI_HDCP drivers. This interface is specific to the usage of mei_hdcp from gen9+ platforms for ME FW based HDCP2.2 services. And Generic HDCP2.2 protocol specific definitions are added at drm/drm_hdcp.h. v2: Commit msg is enhanced [Daniel] v3: i915_hdcp_comp_master is defined. Signed-off-by: Ramalingam C Reviewed-by: Daniel Vetter Reviewed-by: Uma Shankar --- include/drm/i915_mei_hdcp_interface.h | 148 ++++++++++++++++++++++++++++++++++ 1 file changed, 148 insertions(+) create mode 100644 include/drm/i915_mei_hdcp_interface.h diff --git a/include/drm/i915_mei_hdcp_interface.h b/include/drm/i915_mei_hdcp_interface.h new file mode 100644 index 000000000000..bc5b0c71ed3c --- /dev/null +++ b/include/drm/i915_mei_hdcp_interface.h @@ -0,0 +1,148 @@ +/* SPDX-License-Identifier: (GPL-2.0+) */ +/* + * Copyright © 2017-2018 Intel Corporation + * + * Authors: + * Ramalingam C + */ + +#ifndef _I915_MEI_HDCP_INTERFACE_H_ +#define _I915_MEI_HDCP_INTERFACE_H_ + +#include +#include +#include + +/** + * enum hdcp_port_type - HDCP port implementation type defined by ME FW + * @HDCP_PORT_TYPE_INVALID: Invalid hdcp port type + * @HDCP_PORT_TYPE_INTEGRATED: In-Host HDCP2.x port + * @HDCP_PORT_TYPE_LSPCON: HDCP2.2 discrete wired Tx port with LSPCON + * (HDMI 2.0) solution + * @HDCP_PORT_TYPE_CPDP: HDCP2.2 discrete wired Tx port using the CPDP (DP 1.3) + * solution + */ +enum hdcp_port_type { + HDCP_PORT_TYPE_INVALID, + HDCP_PORT_TYPE_INTEGRATED, + HDCP_PORT_TYPE_LSPCON, + HDCP_PORT_TYPE_CPDP +}; + +/** + * enum hdcp_wired_protocol - HDCP adaptation used on the port + * @HDCP_PROTOCOL_INVALID: Invalid HDCP adaptation protocol + * @HDCP_PROTOCOL_HDMI: HDMI adaptation of HDCP used on the port + * @HDCP_PROTOCOL_DP: DP adaptation of HDCP used on the port + */ +enum hdcp_wired_protocol { + HDCP_PROTOCOL_INVALID, + HDCP_PROTOCOL_HDMI, + HDCP_PROTOCOL_DP +}; + +/** + * struct hdcp_port_data - intel specific HDCP port data + * @port: port index as per I915 + * @port_type: HDCP port type as per ME FW classification + * @protocol: HDCP adaptation as per ME FW + * @k: No of streams transmitted on a port. Only on DP MST this is != 1 + * @seq_num_m: Count of RepeaterAuth_Stream_Manage msg propagated. + * Initialized to 0 on AKE_INIT. Incremented after every successful + * transmission of RepeaterAuth_Stream_Manage message. When it rolls + * over re-Auth has to be triggered. + * @streams: struct hdcp2_streamid_type[k]. Defines the type and id for the + * streams + */ +struct hdcp_port_data { + short int port; + u8 port_type; + u8 protocol; + u16 k; + u32 seq_num_m; + struct hdcp2_streamid_type *streams; +}; + +/** + * struct i915_hdcp_component_ops- ops for HDCP2.2 services. + * @owner: Module providing the ops + * @initiate_hdcp2_session: Initiate a Wired HDCP2.2 Tx Session. + * And Prepare AKE_Init. + * @verify_receiver_cert_prepare_km: Verify the Receiver Certificate + * AKE_Send_Cert and prepare + AKE_Stored_Km/AKE_No_Stored_Km + * @verify_hprime: Verify AKE_Send_H_prime + * @store_pairing_info: Store pairing info received + * @initiate_locality_check: Prepare LC_Init + * @verify_lprime: Verify lprime + * @get_session_key: Prepare SKE_Send_Eks + * @repeater_check_flow_prepare_ack: Validate the Downstream topology + * and prepare rep_ack + * @verify_mprime: Verify mprime + * @enable_hdcp_authentication: Mark a port as authenticated. + * @close_hdcp_session: Close the Wired HDCP Tx session per port. + * This also disables the authenticated state of the port. + */ +struct i915_hdcp_component_ops { + /** + * @owner: mei_hdcp module + */ + struct module *owner; + + int (*initiate_hdcp2_session)(struct device *dev, + struct hdcp_port_data *data, + struct hdcp2_ake_init *ake_data); + int (*verify_receiver_cert_prepare_km)(struct device *dev, + struct hdcp_port_data *data, + struct hdcp2_ake_send_cert + *rx_cert, + bool *km_stored, + struct hdcp2_ake_no_stored_km + *ek_pub_km, + size_t *msg_sz); + int (*verify_hprime)(struct device *dev, + struct hdcp_port_data *data, + struct hdcp2_ake_send_hprime *rx_hprime); + int (*store_pairing_info)(struct device *dev, + struct hdcp_port_data *data, + struct hdcp2_ake_send_pairing_info + *pairing_info); + int (*initiate_locality_check)(struct device *dev, + struct hdcp_port_data *data, + struct hdcp2_lc_init *lc_init_data); + int (*verify_lprime)(struct device *dev, + struct hdcp_port_data *data, + struct hdcp2_lc_send_lprime *rx_lprime); + int (*get_session_key)(struct device *dev, + struct hdcp_port_data *data, + struct hdcp2_ske_send_eks *ske_data); + int (*repeater_check_flow_prepare_ack)(struct device *dev, + struct hdcp_port_data *data, + struct hdcp2_rep_send_receiverid_list + *rep_topology, + struct hdcp2_rep_send_ack + *rep_send_ack); + int (*verify_mprime)(struct device *dev, + struct hdcp_port_data *data, + struct hdcp2_rep_stream_ready *stream_ready); + int (*enable_hdcp_authentication)(struct device *dev, + struct hdcp_port_data *data); + int (*close_hdcp_session)(struct device *dev, + struct hdcp_port_data *data); +}; + +/** + * struct i915_hdcp_component_master - Used for communication between i915 + * and mei_hdcp drivers for the HDCP2.2 services + * @mei_dev: device that provide the HDCP2.2 service from MEI Bus. + * @hdcp_ops: Ops implemented by mei_hdcp driver, used by i915 driver. + */ +struct i915_hdcp_comp_master { + struct device *mei_dev; + const struct i915_hdcp_component_ops *ops; + + /* To protect the above members. */ + struct mutex mutex; +}; + +#endif /* _I915_MEI_HDCP_INTERFACE_H_ */ From patchwork Thu Jan 31 06:59:21 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ramalingam C X-Patchwork-Id: 10789731 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 8A23013BF for ; Thu, 31 Jan 2019 07:06:18 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 858E32EFB4 for ; Thu, 31 Jan 2019 07:06:18 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 79EDA300F7; Thu, 31 Jan 2019 07:06:18 +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=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 05A172EFB4 for ; Thu, 31 Jan 2019 07:06:18 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 95FF16E66E; Thu, 31 Jan 2019 07:06:15 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by gabe.freedesktop.org (Postfix) with ESMTPS id 9F0FB6E668; Thu, 31 Jan 2019 07:06:07 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 30 Jan 2019 23:06:07 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,543,1539673200"; d="scan'208";a="114128138" Received: from mint-dev.iind.intel.com ([10.223.25.164]) by orsmga008.jf.intel.com with ESMTP; 30 Jan 2019 23:06:05 -0800 From: Ramalingam C To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, daniel.vetter@ffwll.ch, tomas.winkler@intel.com, uma.shankar@intel.com Date: Thu, 31 Jan 2019 12:29:21 +0530 Message-Id: <1548917996-28081-6-git-send-email-ramalingam.c@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> References: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> Subject: [Intel-gfx] [PATCH v10 05/40] drm/i915: Initialize HDCP2.2 X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP Add the HDCP2.2 initialization to the existing HDCP1.4 stack. v2: mei interface handle is protected with mutex. [Chris Wilson] v3: Notifiers are used for the mei interface state. v4: Poll for mei client device state Error msg for out of mem [Uma] Inline req for init function removed [Uma] v5: Rebase as Part of reordering. Component is used for the I915 and MEI_HDCP interface [Daniel] v6: HDCP2.2 uses the I915 component master to communicate with mei_hdcp - [Daniel] Required HDCP2.2 variables defined [Sean Paul] v7: intel_hdcp2.2_init returns void [Uma] Realigning the codes. v8: Avoid using bool structure members. MEI interface related changes are moved into separate patch. Commit msg is updated accordingly. intel_hdcp_exit is defined and used from i915_unload v9: Movement of the hdcp_check_link is moved to new patch [Daniel] intel_hdcp2_exit is removed as mei_comp will be unbind in i915_unload. v10: bool is used in struct to make coding simpler. [Daniel] hdmi hdcp init is placed correctly after encoder attachment. Signed-off-by: Ramalingam C Reviewed-by: Daniel Vetter Reviewed-by: Uma Shankar --- drivers/gpu/drm/i915/intel_dp.c | 3 ++- drivers/gpu/drm/i915/intel_drv.h | 15 ++++++++++++++- drivers/gpu/drm/i915/intel_hdcp.c | 33 ++++++++++++++++++++++++++++++--- drivers/gpu/drm/i915/intel_hdmi.c | 8 ++++---- 4 files changed, 50 insertions(+), 9 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 681e88405ada..815ee68efa2f 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -6950,7 +6950,8 @@ intel_dp_init_connector(struct intel_digital_port *intel_dig_port, intel_dp_add_properties(intel_dp, connector); if (is_hdcp_supported(dev_priv, port) && !intel_dp_is_edp(intel_dp)) { - int ret = intel_hdcp_init(intel_connector, &intel_dp_hdcp_shim); + int ret = intel_hdcp_init(intel_connector, &intel_dp_hdcp_shim, + false); if (ret) DRM_DEBUG_KMS("HDCP init failed, skipping.\n"); } diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index 90ba5436370e..0ac870feb5e9 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -394,6 +394,17 @@ struct intel_hdcp { u64 value; struct delayed_work check_work; struct work_struct prop_work; + + /* HDCP2.2 related definitions */ + /* Flag indicates whether this connector supports HDCP2.2 or not. */ + bool hdcp2_supported; + + /* + * Content Stream Type defined by content owner. TYPE0(0x0) content can + * flow in the link protected by HDCP2.2 or HDCP1.4, where as TYPE1(0x1) + * content can flow only through a link protected by HDCP2.2. + */ + u8 content_type; }; struct intel_connector { @@ -2053,12 +2064,14 @@ void intel_hdcp_atomic_check(struct drm_connector *connector, struct drm_connector_state *old_state, struct drm_connector_state *new_state); int intel_hdcp_init(struct intel_connector *connector, - const struct intel_hdcp_shim *hdcp_shim); + const struct intel_hdcp_shim *hdcp_shim, + bool hdcp2_supported); int intel_hdcp_enable(struct intel_connector *connector); int intel_hdcp_disable(struct intel_connector *connector); int intel_hdcp_check_link(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 is_hdcp2_supported(struct drm_i915_private *dev_priv); /* intel_psr.c */ #define CAN_PSR(dev_priv) (HAS_PSR(dev_priv) && dev_priv->psr.sink_support) diff --git a/drivers/gpu/drm/i915/intel_hdcp.c b/drivers/gpu/drm/i915/intel_hdcp.c index 8cb85b07cfde..1a85dc46692d 100644 --- a/drivers/gpu/drm/i915/intel_hdcp.c +++ b/drivers/gpu/drm/i915/intel_hdcp.c @@ -832,14 +832,37 @@ bool is_hdcp_supported(struct drm_i915_private *dev_priv, enum port port) return INTEL_GEN(dev_priv) >= 9 && port < PORT_E; } +bool is_hdcp2_supported(struct drm_i915_private *dev_priv) +{ + if (!IS_ENABLED(CONFIG_INTEL_MEI_HDCP)) + return false; + + return (INTEL_GEN(dev_priv) >= 10 || IS_GEMINILAKE(dev_priv) || + IS_KABYLAKE(dev_priv)); +} + +static void intel_hdcp2_init(struct intel_connector *connector) +{ + struct drm_i915_private *dev_priv = to_i915(connector->base.dev); + struct intel_hdcp *hdcp = &connector->hdcp; + + WARN_ON(!is_hdcp2_supported(dev_priv)); + + /* TODO: MEI interface needs to be initialized here */ + hdcp->hdcp2_supported = true; +} + int intel_hdcp_init(struct intel_connector *connector, - const struct intel_hdcp_shim *shim) + const struct intel_hdcp_shim *shim, + bool hdcp2_supported) { struct intel_hdcp *hdcp = &connector->hdcp; int ret; - ret = drm_connector_attach_content_protection_property( - &connector->base); + if (!shim) + return -EINVAL; + + ret = drm_connector_attach_content_protection_property(&connector->base); if (ret) return ret; @@ -847,6 +870,10 @@ int intel_hdcp_init(struct intel_connector *connector, mutex_init(&hdcp->mutex); INIT_DELAYED_WORK(&hdcp->check_work, intel_hdcp_check_work); INIT_WORK(&hdcp->prop_work, intel_hdcp_prop_work); + + if (hdcp2_supported) + intel_hdcp2_init(connector); + return 0; } diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c index 97a98e1bea56..ab376a31cdab 100644 --- a/drivers/gpu/drm/i915/intel_hdmi.c +++ b/drivers/gpu/drm/i915/intel_hdmi.c @@ -2427,16 +2427,16 @@ void intel_hdmi_init_connector(struct intel_digital_port *intel_dig_port, intel_hdmi_add_properties(intel_hdmi, connector); + intel_connector_attach_encoder(intel_connector, intel_encoder); + intel_hdmi->attached_connector = intel_connector; + if (is_hdcp_supported(dev_priv, port)) { int ret = intel_hdcp_init(intel_connector, - &intel_hdmi_hdcp_shim); + &intel_hdmi_hdcp_shim, false); if (ret) DRM_DEBUG_KMS("HDCP init failed, skipping.\n"); } - intel_connector_attach_encoder(intel_connector, intel_encoder); - intel_hdmi->attached_connector = intel_connector; - /* For G4X desktop chip, PEG_BAND_GAP_DATA 3:0 must first be written * 0xd. Failure to do so will result in spurious interrupts being * generated on the port when a cable is not attached. From patchwork Thu Jan 31 06:59:22 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ramalingam C X-Patchwork-Id: 10789729 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 B90E113BF for ; Thu, 31 Jan 2019 07:06:17 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B525E2EFB4 for ; Thu, 31 Jan 2019 07:06:17 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id A900A300F7; Thu, 31 Jan 2019 07:06:17 +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 DC9942EFB4 for ; Thu, 31 Jan 2019 07:06:16 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 3595D6E66F; Thu, 31 Jan 2019 07:06:15 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by gabe.freedesktop.org (Postfix) with ESMTPS id 72A456E66E; Thu, 31 Jan 2019 07:06:10 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 30 Jan 2019 23:06:10 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,543,1539673200"; d="scan'208";a="114128153" Received: from mint-dev.iind.intel.com ([10.223.25.164]) by orsmga008.jf.intel.com with ESMTP; 30 Jan 2019 23:06:07 -0800 From: Ramalingam C To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, daniel.vetter@ffwll.ch, tomas.winkler@intel.com, uma.shankar@intel.com Date: Thu, 31 Jan 2019 12:29:22 +0530 Message-Id: <1548917996-28081-7-git-send-email-ramalingam.c@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> References: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> Subject: [Intel-gfx] [PATCH v10 06/40] drm/i915: MEI interface definition X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP Defining the mei-i915 interface functions and initialization of the interface. v2: Adjust to the new interface changes. [Tomas] Added further debug logs for the failures at MEI i/f. port in hdcp_port data is equipped to handle -ve values. v3: mei comp is matched for global i915 comp master. [Daniel] In hdcp_shim hdcp_protocol() is replaced with const variable. [Daniel] mei wrappers are adjusted as per the i/f change [Daniel] v4: port initialization is done only at hdcp2_init only [Danvet] v5: I915 registers a subcomponent to be matched with mei_hdcp [Daniel] Signed-off-by: Ramalingam C Reviewed-by: Daniel Vetter --- drivers/gpu/drm/i915/i915_drv.c | 1 + drivers/gpu/drm/i915/i915_drv.h | 7 + drivers/gpu/drm/i915/intel_drv.h | 5 + drivers/gpu/drm/i915/intel_hdcp.c | 378 +++++++++++++++++++++++++++++++++++++- include/drm/i915_component.h | 3 + 5 files changed, 393 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c index a7aaa1ac4c99..75aff907ba69 100644 --- a/drivers/gpu/drm/i915/i915_drv.c +++ b/drivers/gpu/drm/i915/i915_drv.c @@ -904,6 +904,7 @@ static int i915_driver_init_early(struct drm_i915_private *dev_priv) mutex_init(&dev_priv->av_mutex); mutex_init(&dev_priv->wm.wm_mutex); mutex_init(&dev_priv->pps_mutex); + mutex_init(&dev_priv->hdcp_comp_mutex); i915_memcpy_init_early(dev_priv); intel_runtime_pm_init_early(dev_priv); diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index 22da9df1f0a7..d9a0771af4d1 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -55,6 +55,7 @@ #include #include #include +#include #include "i915_fixed.h" #include "i915_params.h" @@ -2043,6 +2044,12 @@ struct drm_i915_private { struct i915_pmu pmu; + struct i915_hdcp_comp_master *hdcp_master; + bool hdcp_comp_added; + + /* Mutex to protect the above hdcp component related values. */ + struct mutex hdcp_comp_mutex; + /* * NOTE: This is the dri1/ums dungeon, don't add stuff here. Your patch * will be rejected. Instead look for a better place. diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index 0ac870feb5e9..63e009286d5f 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -41,6 +41,7 @@ #include #include #include +#include #include struct drm_printer; @@ -385,6 +386,9 @@ struct intel_hdcp_shim { /* Detects panel's hdcp capability. This is optional for HDMI. */ int (*hdcp_capable)(struct intel_digital_port *intel_dig_port, bool *hdcp_capable); + + /* HDCP adaptation(DP/HDMI) required on the port */ + enum hdcp_wired_protocol protocol; }; struct intel_hdcp { @@ -405,6 +409,7 @@ struct intel_hdcp { * content can flow only through a link protected by HDCP2.2. */ u8 content_type; + struct hdcp_port_data port_data; }; struct intel_connector { diff --git a/drivers/gpu/drm/i915/intel_hdcp.c b/drivers/gpu/drm/i915/intel_hdcp.c index 1a85dc46692d..e0bb5f32ba90 100644 --- a/drivers/gpu/drm/i915/intel_hdcp.c +++ b/drivers/gpu/drm/i915/intel_hdcp.c @@ -7,8 +7,10 @@ */ #include +#include #include #include +#include #include "intel_drv.h" #include "i915_reg.h" @@ -832,6 +834,348 @@ bool is_hdcp_supported(struct drm_i915_private *dev_priv, enum port port) return INTEL_GEN(dev_priv) >= 9 && port < PORT_E; } +static __attribute__((unused)) int +hdcp2_prepare_ake_init(struct intel_connector *connector, + struct hdcp2_ake_init *ake_data) +{ + struct hdcp_port_data *data = &connector->hdcp.port_data; + struct drm_i915_private *dev_priv = to_i915(connector->base.dev); + struct i915_hdcp_comp_master *comp; + int ret; + + mutex_lock(&dev_priv->hdcp_comp_mutex); + comp = dev_priv->hdcp_master; + + if (!comp || !comp->ops) { + mutex_unlock(&dev_priv->hdcp_comp_mutex); + return -EINVAL; + } + + ret = comp->ops->initiate_hdcp2_session(comp->mei_dev, data, ake_data); + if (ret) + DRM_DEBUG_KMS("Prepare_ake_init failed. %d\n", ret); + mutex_unlock(&dev_priv->hdcp_comp_mutex); + + return ret; +} + +static __attribute__((unused)) int +hdcp2_verify_rx_cert_prepare_km(struct intel_connector *connector, + struct hdcp2_ake_send_cert *rx_cert, + bool *paired, + struct hdcp2_ake_no_stored_km *ek_pub_km, + size_t *msg_sz) +{ + struct hdcp_port_data *data = &connector->hdcp.port_data; + struct drm_i915_private *dev_priv = to_i915(connector->base.dev); + struct i915_hdcp_comp_master *comp; + int ret; + + mutex_lock(&dev_priv->hdcp_comp_mutex); + comp = dev_priv->hdcp_master; + + if (!comp || !comp->ops) { + mutex_unlock(&dev_priv->hdcp_comp_mutex); + return -EINVAL; + } + + ret = comp->ops->verify_receiver_cert_prepare_km(comp->mei_dev, data, + rx_cert, paired, + ek_pub_km, msg_sz); + if (ret < 0) + DRM_DEBUG_KMS("Verify rx_cert failed. %d\n", ret); + mutex_unlock(&dev_priv->hdcp_comp_mutex); + + return ret; +} + +static __attribute__((unused)) int +hdcp2_verify_hprime(struct intel_connector *connector, + struct hdcp2_ake_send_hprime *rx_hprime) +{ + struct hdcp_port_data *data = &connector->hdcp.port_data; + struct drm_i915_private *dev_priv = to_i915(connector->base.dev); + struct i915_hdcp_comp_master *comp; + int ret; + + mutex_lock(&dev_priv->hdcp_comp_mutex); + comp = dev_priv->hdcp_master; + + if (!comp || !comp->ops) { + mutex_unlock(&dev_priv->hdcp_comp_mutex); + return -EINVAL; + } + + ret = comp->ops->verify_hprime(comp->mei_dev, data, rx_hprime); + if (ret < 0) + DRM_DEBUG_KMS("Verify hprime failed. %d\n", ret); + mutex_unlock(&dev_priv->hdcp_comp_mutex); + + return ret; +} + +static __attribute__((unused)) int +hdcp2_store_pairing_info(struct intel_connector *connector, + struct hdcp2_ake_send_pairing_info *pairing_info) +{ + struct hdcp_port_data *data = &connector->hdcp.port_data; + struct drm_i915_private *dev_priv = to_i915(connector->base.dev); + struct i915_hdcp_comp_master *comp; + int ret; + + mutex_lock(&dev_priv->hdcp_comp_mutex); + comp = dev_priv->hdcp_master; + + if (!comp || !comp->ops) { + mutex_unlock(&dev_priv->hdcp_comp_mutex); + return -EINVAL; + } + + ret = comp->ops->store_pairing_info(comp->mei_dev, data, pairing_info); + if (ret < 0) + DRM_DEBUG_KMS("Store pairing info failed. %d\n", ret); + mutex_unlock(&dev_priv->hdcp_comp_mutex); + + return ret; +} + +static __attribute__((unused)) int +hdcp2_prepare_lc_init(struct intel_connector *connector, + struct hdcp2_lc_init *lc_init) +{ + struct hdcp_port_data *data = &connector->hdcp.port_data; + struct drm_i915_private *dev_priv = to_i915(connector->base.dev); + struct i915_hdcp_comp_master *comp; + int ret; + + mutex_lock(&dev_priv->hdcp_comp_mutex); + comp = dev_priv->hdcp_master; + + if (!comp || !comp->ops) { + mutex_unlock(&dev_priv->hdcp_comp_mutex); + return -EINVAL; + } + + ret = comp->ops->initiate_locality_check(comp->mei_dev, data, lc_init); + if (ret < 0) + DRM_DEBUG_KMS("Prepare lc_init failed. %d\n", ret); + mutex_unlock(&dev_priv->hdcp_comp_mutex); + + return ret; +} + +static __attribute__((unused)) int +hdcp2_verify_lprime(struct intel_connector *connector, + struct hdcp2_lc_send_lprime *rx_lprime) +{ + struct hdcp_port_data *data = &connector->hdcp.port_data; + struct drm_i915_private *dev_priv = to_i915(connector->base.dev); + struct i915_hdcp_comp_master *comp; + int ret; + + mutex_lock(&dev_priv->hdcp_comp_mutex); + comp = dev_priv->hdcp_master; + + if (!comp || !comp->ops) { + mutex_unlock(&dev_priv->hdcp_comp_mutex); + return -EINVAL; + } + + ret = comp->ops->verify_lprime(comp->mei_dev, data, rx_lprime); + if (ret < 0) + DRM_DEBUG_KMS("Verify L_Prime failed. %d\n", ret); + mutex_unlock(&dev_priv->hdcp_comp_mutex); + + return ret; +} + +static __attribute__((unused)) +int hdcp2_prepare_skey(struct intel_connector *connector, + struct hdcp2_ske_send_eks *ske_data) +{ + struct hdcp_port_data *data = &connector->hdcp.port_data; + struct drm_i915_private *dev_priv = to_i915(connector->base.dev); + struct i915_hdcp_comp_master *comp; + int ret; + + mutex_lock(&dev_priv->hdcp_comp_mutex); + comp = dev_priv->hdcp_master; + + if (!comp || !comp->ops) { + mutex_unlock(&dev_priv->hdcp_comp_mutex); + return -EINVAL; + } + + ret = comp->ops->get_session_key(comp->mei_dev, data, ske_data); + if (ret < 0) + DRM_DEBUG_KMS("Get session key failed. %d\n", ret); + mutex_unlock(&dev_priv->hdcp_comp_mutex); + + return ret; +} + +static __attribute__((unused)) int +hdcp2_verify_rep_topology_prepare_ack(struct intel_connector *connector, + struct hdcp2_rep_send_receiverid_list + *rep_topology, + struct hdcp2_rep_send_ack *rep_send_ack) +{ + struct hdcp_port_data *data = &connector->hdcp.port_data; + struct drm_i915_private *dev_priv = to_i915(connector->base.dev); + struct i915_hdcp_comp_master *comp; + int ret; + + mutex_lock(&dev_priv->hdcp_comp_mutex); + comp = dev_priv->hdcp_master; + + if (!comp || !comp->ops) { + mutex_unlock(&dev_priv->hdcp_comp_mutex); + return -EINVAL; + } + + ret = comp->ops->repeater_check_flow_prepare_ack(comp->mei_dev, data, + rep_topology, + rep_send_ack); + if (ret < 0) + DRM_DEBUG_KMS("Verify rep topology failed. %d\n", ret); + mutex_unlock(&dev_priv->hdcp_comp_mutex); + + return ret; +} + +static __attribute__((unused)) int +hdcp2_verify_mprime(struct intel_connector *connector, + struct hdcp2_rep_stream_ready *stream_ready) +{ + struct hdcp_port_data *data = &connector->hdcp.port_data; + struct drm_i915_private *dev_priv = to_i915(connector->base.dev); + struct i915_hdcp_comp_master *comp; + int ret; + + mutex_lock(&dev_priv->hdcp_comp_mutex); + comp = dev_priv->hdcp_master; + + if (!comp || !comp->ops) { + mutex_unlock(&dev_priv->hdcp_comp_mutex); + return -EINVAL; + } + + ret = comp->ops->verify_mprime(comp->mei_dev, data, stream_ready); + if (ret < 0) + DRM_DEBUG_KMS("Verify mprime failed. %d\n", ret); + mutex_unlock(&dev_priv->hdcp_comp_mutex); + + return ret; +} + +static __attribute__((unused)) +int hdcp2_authenticate_port(struct intel_connector *connector) +{ + struct hdcp_port_data *data = &connector->hdcp.port_data; + struct drm_i915_private *dev_priv = to_i915(connector->base.dev); + struct i915_hdcp_comp_master *comp; + int ret; + + mutex_lock(&dev_priv->hdcp_comp_mutex); + comp = dev_priv->hdcp_master; + + if (!comp || !comp->ops) { + mutex_unlock(&dev_priv->hdcp_comp_mutex); + return -EINVAL; + } + + ret = comp->ops->enable_hdcp_authentication(comp->mei_dev, data); + if (ret < 0) + DRM_DEBUG_KMS("Enable hdcp auth failed. %d\n", ret); + mutex_unlock(&dev_priv->hdcp_comp_mutex); + + return ret; +} + +static __attribute__((unused)) +int hdcp2_close_mei_session(struct intel_connector *connector) +{ + struct drm_i915_private *dev_priv = to_i915(connector->base.dev); + struct i915_hdcp_comp_master *comp; + int ret; + + mutex_lock(&dev_priv->hdcp_comp_mutex); + comp = dev_priv->hdcp_master; + + if (!comp || !comp->ops) { + mutex_unlock(&dev_priv->hdcp_comp_mutex); + return -EINVAL; + } + + ret = comp->ops->close_hdcp_session(comp->mei_dev, + &connector->hdcp.port_data); + mutex_unlock(&dev_priv->hdcp_comp_mutex); + + return ret; +} + +static __attribute__((unused)) +int hdcp2_deauthenticate_port(struct intel_connector *connector) +{ + return hdcp2_close_mei_session(connector); +} + +static int i915_hdcp_component_bind(struct device *i915_kdev, + struct device *mei_kdev, void *data) +{ + struct drm_i915_private *dev_priv = kdev_to_i915(i915_kdev); + + DRM_DEBUG("I915 HDCP comp bind\n"); + mutex_lock(&dev_priv->hdcp_comp_mutex); + dev_priv->hdcp_master = (struct i915_hdcp_comp_master *)data; + dev_priv->hdcp_master->mei_dev = mei_kdev; + mutex_unlock(&dev_priv->hdcp_comp_mutex); + + return 0; +} + +static void i915_hdcp_component_unbind(struct device *i915_kdev, + struct device *mei_kdev, void *data) +{ + struct drm_i915_private *dev_priv = kdev_to_i915(i915_kdev); + + DRM_DEBUG("I915 HDCP comp unbind\n"); + mutex_lock(&dev_priv->hdcp_comp_mutex); + dev_priv->hdcp_master->mei_dev = NULL; + dev_priv->hdcp_master = NULL; + mutex_unlock(&dev_priv->hdcp_comp_mutex); +} + +static const struct component_ops i915_hdcp_component_ops = { + .bind = i915_hdcp_component_bind, + .unbind = i915_hdcp_component_unbind, +}; + +static int initialize_hdcp_port_data(struct intel_connector *connector) +{ + 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->k = 1; + if (!data->streams) + data->streams = kcalloc(data->k, + sizeof(struct hdcp2_streamid_type), + GFP_KERNEL); + if (!data->streams) { + DRM_ERROR("Out of Memory\n"); + return -ENOMEM; + } + + data->streams[0].stream_id = 0; + data->streams[0].stream_type = hdcp->content_type; + + return 0; +} + bool is_hdcp2_supported(struct drm_i915_private *dev_priv) { if (!IS_ENABLED(CONFIG_INTEL_MEI_HDCP)) @@ -845,10 +1189,42 @@ static void intel_hdcp2_init(struct intel_connector *connector) { struct drm_i915_private *dev_priv = to_i915(connector->base.dev); struct intel_hdcp *hdcp = &connector->hdcp; + bool add_component = false; + int ret; WARN_ON(!is_hdcp2_supported(dev_priv)); - /* TODO: MEI interface needs to be initialized here */ + ret = initialize_hdcp_port_data(connector); + if (ret) { + DRM_DEBUG_KMS("Mei hdcp data init failed\n"); + return; + } + + mutex_lock(&dev_priv->hdcp_comp_mutex); + /* + * Component for mei is common across the connector. + * Adding the component once is sufficient. + */ + if (!dev_priv->hdcp_comp_added) { + dev_priv->hdcp_comp_added = true; + add_component = true; + } + mutex_unlock(&dev_priv->hdcp_comp_mutex); + + if (add_component) { + ret = component_add_typed(dev_priv->drm.dev, + &i915_hdcp_component_ops, + I915_COMPONENT_HDCP); + if (ret < 0) { + DRM_DEBUG_KMS("Failed at component add(%d)\n", ret); + mutex_lock(&dev_priv->hdcp_comp_mutex); + dev_priv->hdcp_comp_added = false; + mutex_unlock(&dev_priv->hdcp_comp_mutex); + kfree(hdcp->port_data.streams); + return; + } + } + hdcp->hdcp2_supported = true; } diff --git a/include/drm/i915_component.h b/include/drm/i915_component.h index 72fbb037f9b3..f3851ba3e4c3 100644 --- a/include/drm/i915_component.h +++ b/include/drm/i915_component.h @@ -24,10 +24,13 @@ #ifndef _I915_COMPONENT_H_ #define _I915_COMPONENT_H_ +#include + #include "drm_audio_component.h" enum i915_component_type { I915_COMPONENT_AUDIO = 1, + I915_COMPONENT_HDCP, }; /* MAX_PORT is the number of port From patchwork Thu Jan 31 06:59:23 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ramalingam C X-Patchwork-Id: 10789741 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 4A7CC1390 for ; Thu, 31 Jan 2019 07:06:26 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 469422EFB4 for ; Thu, 31 Jan 2019 07:06:26 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 3A2CF300F7; Thu, 31 Jan 2019 07:06:26 +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 BDED42EFB4 for ; Thu, 31 Jan 2019 07:06:25 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id A58266E671; Thu, 31 Jan 2019 07:06:20 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by gabe.freedesktop.org (Postfix) with ESMTPS id 0E8146E66C; Thu, 31 Jan 2019 07:06:13 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 30 Jan 2019 23:06:12 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,543,1539673200"; d="scan'208";a="114128166" Received: from mint-dev.iind.intel.com ([10.223.25.164]) by orsmga008.jf.intel.com with ESMTP; 30 Jan 2019 23:06:10 -0800 From: Ramalingam C To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, daniel.vetter@ffwll.ch, tomas.winkler@intel.com, uma.shankar@intel.com Date: Thu, 31 Jan 2019 12:29:23 +0530 Message-Id: <1548917996-28081-8-git-send-email-ramalingam.c@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> References: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> Subject: [Intel-gfx] [PATCH v10 07/40] drm/i915: hdcp1.4 CP_IRQ handling and SW encryption tracking X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP "hdcp_encrypted" flag is defined to denote the HDCP1.4 encryption status. This SW tracking is used to determine the need for real hdcp1.4 disable and hdcp_check_link upon CP_IRQ. On CP_IRQ we filter the CP_IRQ related to the states like Link failure and reauthentication req etc and handle them in hdcp_check_link. CP_IRQ corresponding to the authentication msg availability are ignored. WARN_ON is added for the abrupt stop of HDCP encryption of a port. v2: bool is used in struct for the cleaner coding. [Daniel] check_link work_fn is scheduled for cp_irq handling [Daniel] Signed-off-by: Ramalingam C Reviewed-by: Daniel Vetter Reviewed-by: Uma Shankar --- drivers/gpu/drm/i915/intel_dp.c | 2 +- drivers/gpu/drm/i915/intel_drv.h | 5 ++- drivers/gpu/drm/i915/intel_hdcp.c | 73 ++++++++++++++++++++++++++++----------- 3 files changed, 58 insertions(+), 22 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 815ee68efa2f..9ce05819fc11 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -4776,7 +4776,7 @@ static void intel_dp_check_service_irq(struct intel_dp *intel_dp) intel_dp_handle_test_request(intel_dp); if (val & DP_CP_IRQ) - intel_hdcp_check_link(intel_dp->attached_connector); + intel_hdcp_handle_cp_irq(intel_dp->attached_connector); if (val & DP_SINK_SPECIFIC_IRQ) DRM_DEBUG_DRIVER("Sink specific irq unhandled\n"); diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index 63e009286d5f..13a41e8cf4ff 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -399,6 +399,9 @@ struct intel_hdcp { struct delayed_work check_work; struct work_struct prop_work; + /* HDCP1.4 Encryption status */ + bool hdcp_encrypted; + /* HDCP2.2 related definitions */ /* Flag indicates whether this connector supports HDCP2.2 or not. */ bool hdcp2_supported; @@ -2073,10 +2076,10 @@ int intel_hdcp_init(struct intel_connector *connector, bool hdcp2_supported); int intel_hdcp_enable(struct intel_connector *connector); int intel_hdcp_disable(struct intel_connector *connector); -int intel_hdcp_check_link(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 is_hdcp2_supported(struct drm_i915_private *dev_priv); +void intel_hdcp_handle_cp_irq(struct intel_connector *connector); /* intel_psr.c */ #define CAN_PSR(dev_priv) (HAS_PSR(dev_priv) && dev_priv->psr.sink_support) diff --git a/drivers/gpu/drm/i915/intel_hdcp.c b/drivers/gpu/drm/i915/intel_hdcp.c index e0bb5f32ba90..c1b057f1501b 100644 --- a/drivers/gpu/drm/i915/intel_hdcp.c +++ b/drivers/gpu/drm/i915/intel_hdcp.c @@ -74,6 +74,16 @@ bool intel_hdcp_capable(struct intel_connector *connector) return capable; } +static inline bool intel_hdcp_in_use(struct intel_connector *connector) +{ + struct drm_i915_private *dev_priv = to_i915(connector->base.dev); + enum port port = connector->encoder->port; + u32 reg; + + reg = I915_READ(PORT_HDCP_STATUS(port)); + return reg & HDCP_STATUS_ENC; +} + static int intel_hdcp_poll_ksv_fifo(struct intel_digital_port *intel_dig_port, const struct intel_hdcp_shim *shim) { @@ -668,6 +678,7 @@ static int _intel_hdcp_disable(struct intel_connector *connector) DRM_DEBUG_KMS("[%s:%d] HDCP is being disabled...\n", connector->base.name, connector->base.base.id); + hdcp->hdcp_encrypted = false; I915_WRITE(PORT_HDCP_CONF(port), 0); if (intel_wait_for_register(dev_priv, PORT_HDCP_STATUS(port), ~0, 0, ENCRYPT_STATUS_CHANGE_TIMEOUT_MS)) { @@ -713,8 +724,10 @@ 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); - if (!ret) + if (!ret) { + hdcp->hdcp_encrypted = true; return 0; + } DRM_DEBUG_KMS("HDCP Auth failure (%d)\n", ret); @@ -741,16 +754,17 @@ int intel_hdcp_check_link(struct intel_connector *connector) enum port port = intel_dig_port->base.port; int ret = 0; - if (!hdcp->shim) - return -ENOENT; - mutex_lock(&hdcp->mutex); - if (hdcp->value == DRM_MODE_CONTENT_PROTECTION_UNDESIRED) + /* Check_link valid only when HDCP1.4 is enabled */ + if (hdcp->value != DRM_MODE_CONTENT_PROTECTION_ENABLED || + !hdcp->hdcp_encrypted) { + ret = -EINVAL; goto out; + } - if (!(I915_READ(PORT_HDCP_STATUS(port)) & HDCP_STATUS_ENC)) { - DRM_ERROR("%s:%d HDCP check failed: link is not encrypted,%x\n", + if (WARN_ON(!intel_hdcp_in_use(connector))) { + DRM_ERROR("%s:%d HDCP link stopped encryption,%x\n", connector->base.name, connector->base.base.id, I915_READ(PORT_HDCP_STATUS(port))); ret = -ENXIO; @@ -791,18 +805,6 @@ int intel_hdcp_check_link(struct intel_connector *connector) return ret; } -static void intel_hdcp_check_work(struct work_struct *work) -{ - struct intel_hdcp *hdcp = container_of(to_delayed_work(work), - struct intel_hdcp, - check_work); - struct intel_connector *connector = intel_hdcp_to_connector(hdcp); - - if (!intel_hdcp_check_link(connector)) - schedule_delayed_work(&hdcp->check_work, - DRM_HDCP_CHECK_PERIOD_MS); -} - static void intel_hdcp_prop_work(struct work_struct *work) { struct intel_hdcp *hdcp = container_of(work, struct intel_hdcp, @@ -1120,6 +1122,18 @@ int hdcp2_deauthenticate_port(struct intel_connector *connector) return hdcp2_close_mei_session(connector); } +static void intel_hdcp_check_work(struct work_struct *work) +{ + struct intel_hdcp *hdcp = container_of(to_delayed_work(work), + struct intel_hdcp, + check_work); + struct intel_connector *connector = intel_hdcp_to_connector(hdcp); + + if (!intel_hdcp_check_link(connector)) + schedule_delayed_work(&hdcp->check_work, + DRM_HDCP_CHECK_PERIOD_MS); +} + static int i915_hdcp_component_bind(struct device *i915_kdev, struct device *mei_kdev, void *data) { @@ -1288,7 +1302,8 @@ int intel_hdcp_disable(struct intel_connector *connector) if (hdcp->value != DRM_MODE_CONTENT_PROTECTION_UNDESIRED) { hdcp->value = DRM_MODE_CONTENT_PROTECTION_UNDESIRED; - ret = _intel_hdcp_disable(connector); + if (hdcp->hdcp_encrypted) + ret = _intel_hdcp_disable(connector); } mutex_unlock(&hdcp->mutex); @@ -1328,3 +1343,21 @@ void intel_hdcp_atomic_check(struct drm_connector *connector, new_state->crtc); crtc_state->mode_changed = true; } + +/* Handles the CP_IRQ raised from the DP HDCP sink */ +void intel_hdcp_handle_cp_irq(struct intel_connector *connector) +{ + struct intel_hdcp *hdcp = &connector->hdcp; + + if (!hdcp->shim) + return; + + /* + * CP_IRQ could be triggered due to 1. HDCP2.2 auth msgs availability, + * 2. link failure and 3. repeater reauth request. At present we dont + * handle the CP_IRQ for the HDCP2.2 auth msg availability for read. + * To handle other two causes for CP_IRQ we have the work_fn which is + * scheduled here. + */ + schedule_delayed_work(&hdcp->check_work, 0); +} From patchwork Thu Jan 31 06:59:24 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ramalingam C X-Patchwork-Id: 10789737 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 760A313BF for ; Thu, 31 Jan 2019 07:06:24 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 71C592EFB4 for ; Thu, 31 Jan 2019 07:06:24 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 65BB8300F7; Thu, 31 Jan 2019 07:06:24 +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 CCE762EFB4 for ; Thu, 31 Jan 2019 07:06:23 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id C54526E674; Thu, 31 Jan 2019 07:06:19 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by gabe.freedesktop.org (Postfix) with ESMTPS id 9D8C66E670; Thu, 31 Jan 2019 07:06:15 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 30 Jan 2019 23:06:15 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,543,1539673200"; d="scan'208";a="114128181" Received: from mint-dev.iind.intel.com ([10.223.25.164]) by orsmga008.jf.intel.com with ESMTP; 30 Jan 2019 23:06:13 -0800 From: Ramalingam C To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, daniel.vetter@ffwll.ch, tomas.winkler@intel.com, uma.shankar@intel.com Date: Thu, 31 Jan 2019 12:29:24 +0530 Message-Id: <1548917996-28081-9-git-send-email-ramalingam.c@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> References: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> Subject: [Intel-gfx] [PATCH v10 08/40] drm/i915: Enable and Disable of HDCP2.2 X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP Considering that HDCP2.2 is more secure than HDCP1.4, When a setup supports HDCP2.2 and HDCP1.4, HDCP2.2 will be enabled. When HDCP2.2 enabling fails and HDCP1.4 is supported, HDCP1.4 is enabled. This change implements a sequence of enabling and disabling of HDCP2.2 authentication and HDCP2.2 port encryption. v2: Included few optimization suggestions [Chris Wilson] Commit message is updated as per the rebased version. intel_wait_for_register is used instead of wait_for. [Chris Wilson] v3: Extra comment added and Style issue fixed [Uma] v4: Rebased as part of patch reordering. HDCP2 encryption status is tracked. HW state check is moved into WARN_ON [Daniel] v5: Redefined the mei service functions as per comp redesign. Merged patches related to hdcp2.2 enabling and disabling [Sean Paul]. Required shim functionality is defined [Sean Paul] v6: Return values are handles [Uma] Realigned the code. Check for comp_master is removed. v7: HDCP2.2 is attempted only if mei interface is up. Adjust to the new interface Avoid bool usage in struct [Tomas] v8: mei_binded status check is removed. %s/hdcp2_in_use/hdcp2_encrypted v9: bool is used in struct intel_hdcp. [Daniel] Signed-off-by: Ramalingam C Reviewed-by: Daniel Vetter Reviewed-by: Uma Shankar --- drivers/gpu/drm/i915/intel_drv.h | 7 ++ drivers/gpu/drm/i915/intel_hdcp.c | 202 +++++++++++++++++++++++++++++++++++--- 2 files changed, 195 insertions(+), 14 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index 13a41e8cf4ff..31c7a4577ca9 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -389,6 +389,10 @@ struct intel_hdcp_shim { /* HDCP adaptation(DP/HDMI) required on the port */ enum hdcp_wired_protocol protocol; + + /* Detects whether Panel is HDCP2.2 capable */ + int (*hdcp_2_2_capable)(struct intel_digital_port *intel_dig_port, + bool *capable); }; struct intel_hdcp { @@ -406,6 +410,9 @@ struct intel_hdcp { /* Flag indicates whether this connector supports HDCP2.2 or not. */ bool hdcp2_supported; + /* HDCP2.2 Encryption status */ + bool hdcp2_encrypted; + /* * Content Stream Type defined by content owner. TYPE0(0x0) content can * flow in the link protected by HDCP2.2 or HDCP1.4, where as TYPE1(0x1) diff --git a/drivers/gpu/drm/i915/intel_hdcp.c b/drivers/gpu/drm/i915/intel_hdcp.c index c1b057f1501b..fbf8b7893bfa 100644 --- a/drivers/gpu/drm/i915/intel_hdcp.c +++ b/drivers/gpu/drm/i915/intel_hdcp.c @@ -74,6 +74,23 @@ bool intel_hdcp_capable(struct intel_connector *connector) return capable; } +/* Is HDCP2.2 capable on Platform and Sink */ +static bool intel_hdcp2_capable(struct intel_connector *connector) +{ + struct intel_digital_port *intel_dig_port = conn_to_dig_port(connector); + struct intel_hdcp *hdcp = &connector->hdcp; + bool capable = false; + + /* I915 support for HDCP2.2 */ + if (!hdcp->hdcp2_supported) + return false; + + /* Sink's capability for HDCP2.2 */ + hdcp->shim->hdcp_2_2_capable(intel_dig_port, &capable); + + return capable; +} + static inline bool intel_hdcp_in_use(struct intel_connector *connector) { struct drm_i915_private *dev_priv = to_i915(connector->base.dev); @@ -1094,8 +1111,7 @@ int hdcp2_authenticate_port(struct intel_connector *connector) return ret; } -static __attribute__((unused)) -int hdcp2_close_mei_session(struct intel_connector *connector) +static int hdcp2_close_mei_session(struct intel_connector *connector) { struct drm_i915_private *dev_priv = to_i915(connector->base.dev); struct i915_hdcp_comp_master *comp; @@ -1116,12 +1132,157 @@ int hdcp2_close_mei_session(struct intel_connector *connector) return ret; } -static __attribute__((unused)) -int hdcp2_deauthenticate_port(struct intel_connector *connector) +static int hdcp2_deauthenticate_port(struct intel_connector *connector) { return hdcp2_close_mei_session(connector); } +static int hdcp2_authenticate_sink(struct intel_connector *connector) +{ + DRM_ERROR("Sink authentication is done in subsequent patches\n"); + + return -EINVAL; +} + +static int hdcp2_enable_encryption(struct intel_connector *connector) +{ + struct intel_digital_port *intel_dig_port = conn_to_dig_port(connector); + struct drm_i915_private *dev_priv = to_i915(connector->base.dev); + struct intel_hdcp *hdcp = &connector->hdcp; + enum port port = connector->encoder->port; + int ret; + + WARN_ON(I915_READ(HDCP2_STATUS_DDI(port)) & LINK_ENCRYPTION_STATUS); + + if (hdcp->shim->toggle_signalling) { + ret = hdcp->shim->toggle_signalling(intel_dig_port, true); + if (ret) { + DRM_ERROR("Failed to enable HDCP signalling. %d\n", + ret); + return ret; + } + } + + if (I915_READ(HDCP2_STATUS_DDI(port)) & LINK_AUTH_STATUS) { + /* Link is Authenticated. Now set for Encryption */ + I915_WRITE(HDCP2_CTL_DDI(port), + I915_READ(HDCP2_CTL_DDI(port)) | + CTL_LINK_ENCRYPTION_REQ); + } + + ret = intel_wait_for_register(dev_priv, HDCP2_STATUS_DDI(port), + LINK_ENCRYPTION_STATUS, + LINK_ENCRYPTION_STATUS, + ENCRYPT_STATUS_CHANGE_TIMEOUT_MS); + + return ret; +} + +static int hdcp2_disable_encryption(struct intel_connector *connector) +{ + struct intel_digital_port *intel_dig_port = conn_to_dig_port(connector); + struct drm_i915_private *dev_priv = to_i915(connector->base.dev); + struct intel_hdcp *hdcp = &connector->hdcp; + enum port port = connector->encoder->port; + int ret; + + WARN_ON(!(I915_READ(HDCP2_STATUS_DDI(port)) & LINK_ENCRYPTION_STATUS)); + + I915_WRITE(HDCP2_CTL_DDI(port), + I915_READ(HDCP2_CTL_DDI(port)) & ~CTL_LINK_ENCRYPTION_REQ); + + ret = intel_wait_for_register(dev_priv, HDCP2_STATUS_DDI(port), + LINK_ENCRYPTION_STATUS, 0x0, + ENCRYPT_STATUS_CHANGE_TIMEOUT_MS); + if (ret == -ETIMEDOUT) + DRM_DEBUG_KMS("Disable Encryption Timedout"); + + if (hdcp->shim->toggle_signalling) { + ret = hdcp->shim->toggle_signalling(intel_dig_port, false); + if (ret) { + DRM_ERROR("Failed to disable HDCP signalling. %d\n", + ret); + return ret; + } + } + + return ret; +} + +static int hdcp2_authenticate_and_encrypt(struct intel_connector *connector) +{ + int ret, i, tries = 3; + + for (i = 0; i < tries; i++) { + ret = hdcp2_authenticate_sink(connector); + if (!ret) + break; + + /* Clearing the mei hdcp session */ + DRM_DEBUG_KMS("HDCP2.2 Auth %d of %d Failed.(%d)\n", + i + 1, tries, ret); + if (hdcp2_deauthenticate_port(connector) < 0) + DRM_DEBUG_KMS("Port deauth failed.\n"); + } + + if (i != tries) { + /* + * Ensuring the required 200mSec min time interval between + * Session Key Exchange and encryption. + */ + msleep(HDCP_2_2_DELAY_BEFORE_ENCRYPTION_EN); + ret = hdcp2_enable_encryption(connector); + if (ret < 0) { + DRM_DEBUG_KMS("Encryption Enable Failed.(%d)\n", ret); + if (hdcp2_deauthenticate_port(connector) < 0) + DRM_DEBUG_KMS("Port deauth failed.\n"); + } + } + + return ret; +} + +static int _intel_hdcp2_enable(struct intel_connector *connector) +{ + struct intel_hdcp *hdcp = &connector->hdcp; + int ret; + + DRM_DEBUG_KMS("[%s:%d] HDCP2.2 is being enabled. Type: %d\n", + connector->base.name, connector->base.base.id, + hdcp->content_type); + + ret = hdcp2_authenticate_and_encrypt(connector); + if (ret) { + DRM_DEBUG_KMS("HDCP2 Type%d Enabling Failed. (%d)\n", + hdcp->content_type, ret); + return ret; + } + + DRM_DEBUG_KMS("[%s:%d] HDCP2.2 is enabled. Type %d\n", + connector->base.name, connector->base.base.id, + hdcp->content_type); + + hdcp->hdcp2_encrypted = true; + return 0; +} + +static int _intel_hdcp2_disable(struct intel_connector *connector) +{ + int ret; + + DRM_DEBUG_KMS("[%s:%d] HDCP2.2 is being Disabled\n", + connector->base.name, connector->base.base.id); + + ret = hdcp2_disable_encryption(connector); + + if (hdcp2_deauthenticate_port(connector) < 0) + DRM_DEBUG_KMS("Port deauth failed.\n"); + + connector->hdcp.hdcp2_encrypted = false; + + return ret; +} + static void intel_hdcp_check_work(struct work_struct *work) { struct intel_hdcp *hdcp = container_of(to_delayed_work(work), @@ -1270,22 +1431,33 @@ int intel_hdcp_init(struct intel_connector *connector, int intel_hdcp_enable(struct intel_connector *connector) { struct intel_hdcp *hdcp = &connector->hdcp; - int ret; + int ret = -EINVAL; if (!hdcp->shim) return -ENOENT; mutex_lock(&hdcp->mutex); - ret = _intel_hdcp_enable(connector); - if (ret) - goto out; + /* + * Considering that HDCP2.2 is more secure than HDCP1.4, If the setup + * is capable of HDCP2.2, it is preferred to use HDCP2.2. + */ + if (intel_hdcp2_capable(connector)) + ret = _intel_hdcp2_enable(connector); + + /* When HDCP2.2 fails, HDCP1.4 will be attempted */ + if (ret && intel_hdcp_capable(connector)) { + ret = _intel_hdcp_enable(connector); + if (!ret) + schedule_delayed_work(&hdcp->check_work, + DRM_HDCP_CHECK_PERIOD_MS); + } + + if (!ret) { + hdcp->value = DRM_MODE_CONTENT_PROTECTION_ENABLED; + schedule_work(&hdcp->prop_work); + } - hdcp->value = DRM_MODE_CONTENT_PROTECTION_ENABLED; - schedule_work(&hdcp->prop_work); - schedule_delayed_work(&hdcp->check_work, - DRM_HDCP_CHECK_PERIOD_MS); -out: mutex_unlock(&hdcp->mutex); return ret; } @@ -1302,7 +1474,9 @@ int intel_hdcp_disable(struct intel_connector *connector) if (hdcp->value != DRM_MODE_CONTENT_PROTECTION_UNDESIRED) { hdcp->value = DRM_MODE_CONTENT_PROTECTION_UNDESIRED; - if (hdcp->hdcp_encrypted) + if (hdcp->hdcp2_encrypted) + ret = _intel_hdcp2_disable(connector); + else if (hdcp->hdcp_encrypted) ret = _intel_hdcp_disable(connector); } From patchwork Thu Jan 31 06:59:25 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Ramalingam C X-Patchwork-Id: 10789739 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 8436B1390 for ; Thu, 31 Jan 2019 07:06:25 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 813412EFB4 for ; Thu, 31 Jan 2019 07:06:25 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 72DAF300F7; Thu, 31 Jan 2019 07:06:25 +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=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 B059D2EFB4 for ; Thu, 31 Jan 2019 07:06:24 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 42E106E676; Thu, 31 Jan 2019 07:06:21 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by gabe.freedesktop.org (Postfix) with ESMTPS id 2E4F06E672; Thu, 31 Jan 2019 07:06:18 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 30 Jan 2019 23:06:18 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,543,1539673200"; d="scan'208";a="114128198" Received: from mint-dev.iind.intel.com ([10.223.25.164]) by orsmga008.jf.intel.com with ESMTP; 30 Jan 2019 23:06:15 -0800 From: Ramalingam C To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, daniel.vetter@ffwll.ch, tomas.winkler@intel.com, uma.shankar@intel.com Date: Thu, 31 Jan 2019 12:29:25 +0530 Message-Id: <1548917996-28081-10-git-send-email-ramalingam.c@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> References: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v10 09/40] drm/i915: Implement HDCP2.2 receiver authentication X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP Implements HDCP2.2 authentication for hdcp2.2 receivers, with following steps: Authentication and Key exchange (AKE). Locality Check (LC). Session Key Exchange(SKE). DP Errata for stream type configuration for receivers. At AKE, the HDCP Receiver’s public key certificate is verified by the HDCP Transmitter. A Master Key k m is exchanged. At LC, the HDCP Transmitter enforces locality on the content by requiring that the Round Trip Time (RTT) between a pair of messages is not more than 20 ms. At SKE, The HDCP Transmitter exchanges Session Key ks with the HDCP Receiver. In DP HDCP2.2 encryption and decryption logics use the stream type as one of the parameter. So Before enabling the Encryption DP HDCP2.2 receiver needs to be communicated with stream type. This is added to spec as ERRATA. This generic implementation is complete only with the hdcp2 specific functions defined at hdcp_shim. v2: Rebased. v3: %s/PARING/PAIRING Coding style fixing [Uma] v4: Rebased as part of patch reordering. Defined the functions for mei services. [Daniel] v5: Redefined the mei service functions as per comp redesign. Required intel_hdcp members are defined [Sean Paul] v6: Typo of cipher is Fixed [Uma] %s/uintxx_t/uxx Check for comp_master is removed. v7: Adjust to the new interface. Avoid using bool structure members. [Tomas] v8: Rebased. v9: bool is used in struct intel_hdcp [Daniel] config_stream_type is redesigned [Daniel] Signed-off-by: Ramalingam C Reviewed-by: Daniel Vetter Reviewed-by: Uma Shankar --- drivers/gpu/drm/i915/intel_drv.h | 34 +++++++ drivers/gpu/drm/i915/intel_hdcp.c | 197 +++++++++++++++++++++++++++++++++++--- 2 files changed, 216 insertions(+), 15 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index 31c7a4577ca9..e6792304520a 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -393,6 +393,22 @@ struct intel_hdcp_shim { /* Detects whether Panel is HDCP2.2 capable */ int (*hdcp_2_2_capable)(struct intel_digital_port *intel_dig_port, bool *capable); + + /* Write HDCP2.2 messages */ + int (*write_2_2_msg)(struct intel_digital_port *intel_dig_port, + void *buf, size_t size); + + /* Read HDCP2.2 messages */ + int (*read_2_2_msg)(struct intel_digital_port *intel_dig_port, + u8 msg_id, void *buf, size_t size); + + /* + * Implementation of DP HDCP2.2 Errata for the communication of stream + * type to Receivers. In DP HDCP2.2 Stream type is one of the input to + * the HDCP2.2 Cipher for En/De-Cryption. Not applicable for HDMI. + */ + int (*config_stream_type)(struct intel_digital_port *intel_dig_port, + bool is_repeater, u8 type); }; struct intel_hdcp { @@ -420,6 +436,24 @@ struct intel_hdcp { */ u8 content_type; struct hdcp_port_data port_data; + + bool is_paired; + bool is_repeater; + + /* + * Count of ReceiverID_List received. Initialized to 0 at AKE_INIT. + * Incremented after processing the RepeaterAuth_Send_ReceiverID_List. + * When it rolls over re-auth has to be triggered. + */ + u32 seq_num_v; + + /* + * Count of RepeaterAuth_Stream_Manage msg propagated. + * Initialized to 0 on AKE_INIT. Incremented after every successful + * transmission of RepeaterAuth_Stream_Manage message. When it rolls + * over re-Auth has to be triggered. + */ + u32 seq_num_m; }; struct intel_connector { diff --git a/drivers/gpu/drm/i915/intel_hdcp.c b/drivers/gpu/drm/i915/intel_hdcp.c index fbf8b7893bfa..1c81e17dc6c4 100644 --- a/drivers/gpu/drm/i915/intel_hdcp.c +++ b/drivers/gpu/drm/i915/intel_hdcp.c @@ -17,6 +17,7 @@ #define KEY_LOAD_TRIES 5 #define ENCRYPT_STATUS_CHANGE_TIMEOUT_MS 50 +#define HDCP2_LC_RETRY_CNT 3 static bool intel_hdcp_is_ksv_valid(u8 *ksv) @@ -853,7 +854,7 @@ bool is_hdcp_supported(struct drm_i915_private *dev_priv, enum port port) return INTEL_GEN(dev_priv) >= 9 && port < PORT_E; } -static __attribute__((unused)) int +static int hdcp2_prepare_ake_init(struct intel_connector *connector, struct hdcp2_ake_init *ake_data) { @@ -878,7 +879,7 @@ hdcp2_prepare_ake_init(struct intel_connector *connector, return ret; } -static __attribute__((unused)) int +static int hdcp2_verify_rx_cert_prepare_km(struct intel_connector *connector, struct hdcp2_ake_send_cert *rx_cert, bool *paired, @@ -908,9 +909,8 @@ hdcp2_verify_rx_cert_prepare_km(struct intel_connector *connector, return ret; } -static __attribute__((unused)) int -hdcp2_verify_hprime(struct intel_connector *connector, - struct hdcp2_ake_send_hprime *rx_hprime) +static int hdcp2_verify_hprime(struct intel_connector *connector, + struct hdcp2_ake_send_hprime *rx_hprime) { struct hdcp_port_data *data = &connector->hdcp.port_data; struct drm_i915_private *dev_priv = to_i915(connector->base.dev); @@ -933,7 +933,7 @@ hdcp2_verify_hprime(struct intel_connector *connector, return ret; } -static __attribute__((unused)) int +static int hdcp2_store_pairing_info(struct intel_connector *connector, struct hdcp2_ake_send_pairing_info *pairing_info) { @@ -958,7 +958,7 @@ hdcp2_store_pairing_info(struct intel_connector *connector, return ret; } -static __attribute__((unused)) int +static int hdcp2_prepare_lc_init(struct intel_connector *connector, struct hdcp2_lc_init *lc_init) { @@ -983,7 +983,7 @@ hdcp2_prepare_lc_init(struct intel_connector *connector, return ret; } -static __attribute__((unused)) int +static int hdcp2_verify_lprime(struct intel_connector *connector, struct hdcp2_lc_send_lprime *rx_lprime) { @@ -1008,9 +1008,8 @@ hdcp2_verify_lprime(struct intel_connector *connector, return ret; } -static __attribute__((unused)) -int hdcp2_prepare_skey(struct intel_connector *connector, - struct hdcp2_ske_send_eks *ske_data) +static int hdcp2_prepare_skey(struct intel_connector *connector, + struct hdcp2_ske_send_eks *ske_data) { struct hdcp_port_data *data = &connector->hdcp.port_data; struct drm_i915_private *dev_priv = to_i915(connector->base.dev); @@ -1087,8 +1086,7 @@ hdcp2_verify_mprime(struct intel_connector *connector, return ret; } -static __attribute__((unused)) -int hdcp2_authenticate_port(struct intel_connector *connector) +static int hdcp2_authenticate_port(struct intel_connector *connector) { struct hdcp_port_data *data = &connector->hdcp.port_data; struct drm_i915_private *dev_priv = to_i915(connector->base.dev); @@ -1137,11 +1135,180 @@ static int hdcp2_deauthenticate_port(struct intel_connector *connector) return hdcp2_close_mei_session(connector); } +/* Authentication flow starts from here */ +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; + union { + struct hdcp2_ake_init ake_init; + struct hdcp2_ake_send_cert send_cert; + struct hdcp2_ake_no_stored_km no_stored_km; + struct hdcp2_ake_send_hprime send_hprime; + struct hdcp2_ake_send_pairing_info pairing_info; + } msgs; + const struct intel_hdcp_shim *shim = hdcp->shim; + size_t size; + int ret; + + /* Init for seq_num */ + hdcp->seq_num_v = 0; + hdcp->seq_num_m = 0; + + ret = hdcp2_prepare_ake_init(connector, &msgs.ake_init); + if (ret < 0) + return ret; + + ret = shim->write_2_2_msg(intel_dig_port, &msgs.ake_init, + sizeof(msgs.ake_init)); + if (ret < 0) + return ret; + + ret = shim->read_2_2_msg(intel_dig_port, HDCP_2_2_AKE_SEND_CERT, + &msgs.send_cert, sizeof(msgs.send_cert)); + if (ret < 0) + return ret; + + if (msgs.send_cert.rx_caps[0] != HDCP_2_2_RX_CAPS_VERSION_VAL) + return -EINVAL; + + hdcp->is_repeater = HDCP_2_2_RX_REPEATER(msgs.send_cert.rx_caps[2]); + + /* + * Here msgs.no_stored_km will hold msgs corresponding to the km + * stored also. + */ + ret = hdcp2_verify_rx_cert_prepare_km(connector, &msgs.send_cert, + &hdcp->is_paired, + &msgs.no_stored_km, &size); + if (ret < 0) + return ret; + + ret = shim->write_2_2_msg(intel_dig_port, &msgs.no_stored_km, size); + if (ret < 0) + return ret; + + ret = shim->read_2_2_msg(intel_dig_port, HDCP_2_2_AKE_SEND_HPRIME, + &msgs.send_hprime, sizeof(msgs.send_hprime)); + if (ret < 0) + return ret; + + ret = hdcp2_verify_hprime(connector, &msgs.send_hprime); + if (ret < 0) + return ret; + + if (!hdcp->is_paired) { + /* Pairing is required */ + ret = shim->read_2_2_msg(intel_dig_port, + HDCP_2_2_AKE_SEND_PAIRING_INFO, + &msgs.pairing_info, + sizeof(msgs.pairing_info)); + if (ret < 0) + return ret; + + ret = hdcp2_store_pairing_info(connector, &msgs.pairing_info); + if (ret < 0) + return ret; + hdcp->is_paired = true; + } + + return 0; +} + +static int hdcp2_locality_check(struct intel_connector *connector) +{ + struct intel_digital_port *intel_dig_port = conn_to_dig_port(connector); + struct intel_hdcp *hdcp = &connector->hdcp; + union { + struct hdcp2_lc_init lc_init; + struct hdcp2_lc_send_lprime send_lprime; + } msgs; + const struct intel_hdcp_shim *shim = hdcp->shim; + int tries = HDCP2_LC_RETRY_CNT, ret, i; + + for (i = 0; i < tries; i++) { + ret = hdcp2_prepare_lc_init(connector, &msgs.lc_init); + if (ret < 0) + continue; + + ret = shim->write_2_2_msg(intel_dig_port, &msgs.lc_init, + sizeof(msgs.lc_init)); + if (ret < 0) + continue; + + ret = shim->read_2_2_msg(intel_dig_port, + HDCP_2_2_LC_SEND_LPRIME, + &msgs.send_lprime, + sizeof(msgs.send_lprime)); + if (ret < 0) + continue; + + ret = hdcp2_verify_lprime(connector, &msgs.send_lprime); + if (!ret) + break; + } + + return ret; +} + +static int hdcp2_session_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 hdcp2_ske_send_eks send_eks; + int ret; + + ret = hdcp2_prepare_skey(connector, &send_eks); + if (ret < 0) + return ret; + + ret = hdcp->shim->write_2_2_msg(intel_dig_port, &send_eks, + sizeof(send_eks)); + if (ret < 0) + return ret; + + return 0; +} + static int hdcp2_authenticate_sink(struct intel_connector *connector) { - DRM_ERROR("Sink authentication is done in subsequent patches\n"); + struct intel_digital_port *intel_dig_port = conn_to_dig_port(connector); + struct intel_hdcp *hdcp = &connector->hdcp; + const struct intel_hdcp_shim *shim = hdcp->shim; + int ret; - return -EINVAL; + ret = hdcp2_authentication_key_exchange(connector); + if (ret < 0) { + DRM_DEBUG_KMS("AKE Failed. Err : %d\n", ret); + return ret; + } + + ret = hdcp2_locality_check(connector); + if (ret < 0) { + DRM_DEBUG_KMS("Locality Check failed. Err : %d\n", ret); + return ret; + } + + ret = hdcp2_session_key_exchange(connector); + if (ret < 0) { + DRM_DEBUG_KMS("SKE Failed. Err : %d\n", ret); + return ret; + } + + if (shim->config_stream_type) { + ret = shim->config_stream_type(intel_dig_port, + hdcp->is_repeater, + hdcp->content_type); + if (ret < 0) + return ret; + } + + hdcp->port_data.streams[0].stream_type = hdcp->content_type; + ret = hdcp2_authenticate_port(connector); + if (ret < 0) + return ret; + + return ret; } static int hdcp2_enable_encryption(struct intel_connector *connector) From patchwork Thu Jan 31 06:59:26 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ramalingam C X-Patchwork-Id: 10789747 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 29BAF1390 for ; Thu, 31 Jan 2019 07:06:34 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 27D1F3002C for ; Thu, 31 Jan 2019 07:06:34 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 1C6023042C; Thu, 31 Jan 2019 07:06:34 +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 D016B3002C for ; Thu, 31 Jan 2019 07:06:33 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 530EF6E67D; Thu, 31 Jan 2019 07:06:27 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by gabe.freedesktop.org (Postfix) with ESMTPS id EBB946E675; Thu, 31 Jan 2019 07:06:20 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 30 Jan 2019 23:06:20 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,543,1539673200"; d="scan'208";a="114128212" Received: from mint-dev.iind.intel.com ([10.223.25.164]) by orsmga008.jf.intel.com with ESMTP; 30 Jan 2019 23:06:18 -0800 From: Ramalingam C To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, daniel.vetter@ffwll.ch, tomas.winkler@intel.com, uma.shankar@intel.com Date: Thu, 31 Jan 2019 12:29:26 +0530 Message-Id: <1548917996-28081-11-git-send-email-ramalingam.c@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> References: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> Subject: [Intel-gfx] [PATCH v10 10/40] drm: helper functions for hdcp2 seq_num to from u32 X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP Library functions for endianness are aligned for 16/32/64 bits. But hdcp sequence numbers are 24bits(big endian). So for their conversion to and from u32 helper functions are developed. v2: Comment is updated. [Daniel] Signed-off-by: Ramalingam C Reviewed-by: Daniel Vetter Reviewed-by: Uma Shankar --- include/drm/drm_hdcp.h | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) diff --git a/include/drm/drm_hdcp.h b/include/drm/drm_hdcp.h index d6dfef8cff6a..7260b31af276 100644 --- a/include/drm/drm_hdcp.h +++ b/include/drm/drm_hdcp.h @@ -252,4 +252,22 @@ struct hdcp2_dp_errata_stream_type { #define HDCP_2_2_HDMI_RXSTATUS_READY(x) ((x) & BIT(2)) #define HDCP_2_2_HDMI_RXSTATUS_REAUTH_REQ(x) ((x) & BIT(3)) +/* + * Helper functions to convert 24bit big endian hdcp sequence number to + * host format and back + */ +static inline +u32 drm_hdcp2_seq_num_to_u32(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) +{ + seq_num[0] = val >> 16; + seq_num[1] = val >> 8; + seq_num[2] = val; +} + #endif From patchwork Thu Jan 31 06:59:27 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ramalingam C X-Patchwork-Id: 10789749 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 4059713BF for ; Thu, 31 Jan 2019 07:06:34 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 3D43C2EFB4 for ; Thu, 31 Jan 2019 07:06:34 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 3136C3043C; Thu, 31 Jan 2019 07:06:34 +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 A34A22EFB4 for ; Thu, 31 Jan 2019 07:06:33 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 54A0B6EB8A; Thu, 31 Jan 2019 07:06:28 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by gabe.freedesktop.org (Postfix) with ESMTPS id 5D33D6E679; Thu, 31 Jan 2019 07:06:23 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 30 Jan 2019 23:06:23 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,543,1539673200"; d="scan'208";a="114128223" Received: from mint-dev.iind.intel.com ([10.223.25.164]) by orsmga008.jf.intel.com with ESMTP; 30 Jan 2019 23:06:20 -0800 From: Ramalingam C To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, daniel.vetter@ffwll.ch, tomas.winkler@intel.com, uma.shankar@intel.com Date: Thu, 31 Jan 2019 12:29:27 +0530 Message-Id: <1548917996-28081-12-git-send-email-ramalingam.c@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> References: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> Subject: [Intel-gfx] [PATCH v10 11/40] drm/i915: Implement HDCP2.2 repeater authentication X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP Implements the HDCP2.2 repeaters authentication steps such as verifying the downstream topology and sending stream management information. v2: Rebased. v3: -EINVAL is returned for topology error and rollover scenario. Endianness conversion func from drm_hdcp.h is used [Uma] v4: Rebased as part of patches reordering. Defined the mei service functions [Daniel] v5: Redefined the mei service functions as per comp redesign. v6: %s/uintxx_t/uxx Check for comp_master is removed. v7: Adjust to the new mei interface. style issue fixed. v8: drm_hdcp.h change is moved into separate patch [Daniel] v9: %s/__swab16/cpu_to_be16. [Tomas] Signed-off-by: Ramalingam C Reviewed-by: Daniel Vetter Reviewed-by: Uma Shankar --- drivers/gpu/drm/i915/intel_hdcp.c | 125 +++++++++++++++++++++++++++++++++++++- 1 file changed, 123 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_hdcp.c b/drivers/gpu/drm/i915/intel_hdcp.c index 1c81e17dc6c4..3b8d3a4b5e6e 100644 --- a/drivers/gpu/drm/i915/intel_hdcp.c +++ b/drivers/gpu/drm/i915/intel_hdcp.c @@ -1032,7 +1032,7 @@ static int hdcp2_prepare_skey(struct intel_connector *connector, return ret; } -static __attribute__((unused)) int +static int hdcp2_verify_rep_topology_prepare_ack(struct intel_connector *connector, struct hdcp2_rep_send_receiverid_list *rep_topology, @@ -1061,7 +1061,7 @@ hdcp2_verify_rep_topology_prepare_ack(struct intel_connector *connector, return ret; } -static __attribute__((unused)) int +static int hdcp2_verify_mprime(struct intel_connector *connector, struct hdcp2_rep_stream_ready *stream_ready) { @@ -1270,6 +1270,119 @@ static int hdcp2_session_key_exchange(struct intel_connector *connector) return 0; } +static +int hdcp2_propagate_stream_management_info(struct intel_connector *connector) +{ + struct intel_digital_port *intel_dig_port = conn_to_dig_port(connector); + struct intel_hdcp *hdcp = &connector->hdcp; + union { + struct hdcp2_rep_stream_manage stream_manage; + struct hdcp2_rep_stream_ready stream_ready; + } msgs; + const struct intel_hdcp_shim *shim = hdcp->shim; + int ret; + + /* 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); + + /* K no of streams is fixed as 1. Stored as big-endian. */ + msgs.stream_manage.k = cpu_to_be16(1); + + /* For HDMI this is forced to be 0x0. For DP SST also this is 0x0. */ + msgs.stream_manage.streams[0].stream_id = 0; + msgs.stream_manage.streams[0].stream_type = hdcp->content_type; + + /* Send it to Repeater */ + ret = shim->write_2_2_msg(intel_dig_port, &msgs.stream_manage, + sizeof(msgs.stream_manage)); + if (ret < 0) + return ret; + + ret = shim->read_2_2_msg(intel_dig_port, HDCP_2_2_REP_STREAM_READY, + &msgs.stream_ready, sizeof(msgs.stream_ready)); + if (ret < 0) + return ret; + + hdcp->port_data.seq_num_m = hdcp->seq_num_m; + hdcp->port_data.streams[0].stream_type = hdcp->content_type; + + ret = hdcp2_verify_mprime(connector, &msgs.stream_ready); + if (ret < 0) + return ret; + + hdcp->seq_num_m++; + + if (hdcp->seq_num_m > HDCP_2_2_SEQ_NUM_MAX) { + DRM_DEBUG_KMS("seq_num_m roll over.\n"); + return -1; + } + + return 0; +} + +static +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; + 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; + 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, + &msgs.recvid_list, sizeof(msgs.recvid_list)); + if (ret < 0) + return ret; + + rx_info = msgs.recvid_list.rx_info; + + if (HDCP_2_2_MAX_CASCADE_EXCEEDED(rx_info[1]) || + HDCP_2_2_MAX_DEVS_EXCEEDED(rx_info[1])) { + DRM_DEBUG_KMS("Topology Max Size Exceeded\n"); + return -EINVAL; + } + + /* 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); + + if (seq_num_v < hdcp->seq_num_v) { + /* Roll over of the seq_num_v from repeater. Reauthenticate. */ + DRM_DEBUG_KMS("Seq_num_v roll over.\n"); + return -EINVAL; + } + + ret = hdcp2_verify_rep_topology_prepare_ack(connector, + &msgs.recvid_list, + &msgs.rep_ack); + if (ret < 0) + return ret; + + hdcp->seq_num_v = seq_num_v; + ret = shim->write_2_2_msg(intel_dig_port, &msgs.rep_ack, + sizeof(msgs.rep_ack)); + if (ret < 0) + return ret; + + return 0; +} + +static int hdcp2_authenticate_repeater(struct intel_connector *connector) +{ + int ret; + + ret = hdcp2_authenticate_repeater_topology(connector); + if (ret < 0) + return ret; + + return hdcp2_propagate_stream_management_info(connector); +} + static int hdcp2_authenticate_sink(struct intel_connector *connector) { struct intel_digital_port *intel_dig_port = conn_to_dig_port(connector); @@ -1303,6 +1416,14 @@ static int hdcp2_authenticate_sink(struct intel_connector *connector) return ret; } + if (hdcp->is_repeater) { + ret = hdcp2_authenticate_repeater(connector); + if (ret < 0) { + DRM_DEBUG_KMS("Repeater Auth Failed. Err: %d\n", ret); + return ret; + } + } + hdcp->port_data.streams[0].stream_type = hdcp->content_type; ret = hdcp2_authenticate_port(connector); if (ret < 0) From patchwork Thu Jan 31 06:59:28 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ramalingam C X-Patchwork-Id: 10789755 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 EDC861390 for ; Thu, 31 Jan 2019 07:06:39 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id EB23E2EFB4 for ; Thu, 31 Jan 2019 07:06:39 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id DF53A300F7; Thu, 31 Jan 2019 07:06:39 +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 DC5982EFB4 for ; Thu, 31 Jan 2019 07:06:38 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 6544A6EB46; Thu, 31 Jan 2019 07:06:31 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by gabe.freedesktop.org (Postfix) with ESMTPS id D30D66E679; Thu, 31 Jan 2019 07:06:25 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 30 Jan 2019 23:06:25 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,543,1539673200"; d="scan'208";a="114128232" Received: from mint-dev.iind.intel.com ([10.223.25.164]) by orsmga008.jf.intel.com with ESMTP; 30 Jan 2019 23:06:23 -0800 From: Ramalingam C To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, daniel.vetter@ffwll.ch, tomas.winkler@intel.com, uma.shankar@intel.com Date: Thu, 31 Jan 2019 12:29:28 +0530 Message-Id: <1548917996-28081-13-git-send-email-ramalingam.c@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> References: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> Subject: [Intel-gfx] [PATCH v10 12/40] drm: HDCP2.2 link check period X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP Time period for HDCP2.2 link check. Signed-off-by: Ramalingam C Reviewed-by: Daniel Vetter Reviewed-by: Uma Shankar --- include/drm/drm_hdcp.h | 1 + 1 file changed, 1 insertion(+) diff --git a/include/drm/drm_hdcp.h b/include/drm/drm_hdcp.h index 7260b31af276..d4e98b11b4aa 100644 --- a/include/drm/drm_hdcp.h +++ b/include/drm/drm_hdcp.h @@ -13,6 +13,7 @@ /* Period of hdcp checks (to ensure we're still authenticated) */ #define DRM_HDCP_CHECK_PERIOD_MS (128 * 16) +#define DRM_HDCP2_CHECK_PERIOD_MS 500 /* Shared lengths/masks between HDMI/DVI/DisplayPort */ #define DRM_HDCP_AN_LEN 8 From patchwork Thu Jan 31 06:59:29 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ramalingam C X-Patchwork-Id: 10789757 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 A2D6713BF for ; Thu, 31 Jan 2019 07:06:40 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A068D2EFB4 for ; Thu, 31 Jan 2019 07:06:40 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 947BC300F7; Thu, 31 Jan 2019 07:06:40 +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 14A212EFB4 for ; Thu, 31 Jan 2019 07:06:40 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id EA3416EBD0; Thu, 31 Jan 2019 07:06:31 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by gabe.freedesktop.org (Postfix) with ESMTPS id 6D9736E670; Thu, 31 Jan 2019 07:06:28 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 30 Jan 2019 23:06:28 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,543,1539673200"; d="scan'208";a="114128251" Received: from mint-dev.iind.intel.com ([10.223.25.164]) by orsmga008.jf.intel.com with ESMTP; 30 Jan 2019 23:06:26 -0800 From: Ramalingam C To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, daniel.vetter@ffwll.ch, tomas.winkler@intel.com, uma.shankar@intel.com Date: Thu, 31 Jan 2019 12:29:29 +0530 Message-Id: <1548917996-28081-14-git-send-email-ramalingam.c@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> References: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> Subject: [Intel-gfx] [PATCH v10 13/40] drm/i915: Implement HDCP2.2 link integrity check X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP Implements the link integrity check once in 500mSec. Once encryption is enabled, an ongoing Link Integrity Check is performed by the HDCP Receiver to check that cipher synchronization is maintained between the HDCP Transmitter and the HDCP Receiver. On the detection of synchronization lost, the HDCP Receiver must assert the corresponding bits of the RxStatus register. The Transmitter polls the RxStatus register and it may initiate re-authentication. v2: Rebased. v3: enum check_link_response is used check the link status [Uma] v4: Rebased as part of patch reordering. v5: Required members of intel_hdcp is defined [Sean Paul] v6: hdcp2_check_link is cancelled at required places. v7: Rebased for the component i/f changes. Errors due to the sinks are reported as DEBUG logs. v8: hdcp_check_work is used for both hdcp1 and hdcp2 check_link [Daniel] hdcp2.2 encryption status check is put under WARN_ON [Daniel] drm_hdcp.h changes are moved into separate patch [Daniel] v9: enum check_link_status is defined at intel_drv.h [Daniel] Signed-off-by: Ramalingam C Reviewed-by: Uma Shankar --- drivers/gpu/drm/i915/intel_drv.h | 10 +++++ drivers/gpu/drm/i915/intel_hdcp.c | 88 ++++++++++++++++++++++++++++++++++++--- 2 files changed, 93 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index e6792304520a..747fe7361287 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -314,6 +314,13 @@ struct intel_panel { struct intel_digital_port; +enum check_link_response { + HDCP_LINK_PROTECTED = 0, + HDCP_TOPOLOGY_CHANGE, + HDCP_LINK_INTEGRITY_FAILURE, + HDCP_REAUTH_REQUEST +}; + /* * This structure serves as a translation layer between the generic HDCP code * and the bus-specific code. What that means is that HDCP over HDMI differs @@ -409,6 +416,9 @@ struct intel_hdcp_shim { */ int (*config_stream_type)(struct intel_digital_port *intel_dig_port, bool is_repeater, u8 type); + + /* HDCP2.2 Link Integrity Check */ + int (*check_2_2_link)(struct intel_digital_port *intel_dig_port); }; struct intel_hdcp { diff --git a/drivers/gpu/drm/i915/intel_hdcp.c b/drivers/gpu/drm/i915/intel_hdcp.c index 3b8d3a4b5e6e..3feff921a547 100644 --- a/drivers/gpu/drm/i915/intel_hdcp.c +++ b/drivers/gpu/drm/i915/intel_hdcp.c @@ -102,6 +102,16 @@ static inline bool intel_hdcp_in_use(struct intel_connector *connector) return reg & HDCP_STATUS_ENC; } +static inline bool intel_hdcp2_in_use(struct intel_connector *connector) +{ + struct drm_i915_private *dev_priv = to_i915(connector->base.dev); + enum port port = connector->encoder->port; + u32 reg; + + reg = I915_READ(HDCP2_STATUS_DDI(port)); + return reg & LINK_ENCRYPTION_STATUS; +} + static int intel_hdcp_poll_ksv_fifo(struct intel_digital_port *intel_dig_port, const struct intel_hdcp_shim *shim) { @@ -1571,6 +1581,69 @@ static int _intel_hdcp2_disable(struct intel_connector *connector) return ret; } +/* Implements the Link Integrity Check for HDCP2.2 */ +static int intel_hdcp2_check_link(struct intel_connector *connector) +{ + struct intel_digital_port *intel_dig_port = conn_to_dig_port(connector); + struct drm_i915_private *dev_priv = to_i915(connector->base.dev); + struct intel_hdcp *hdcp = &connector->hdcp; + enum port port = connector->encoder->port; + int ret = 0; + + mutex_lock(&hdcp->mutex); + + /* hdcp2_check_link is expected only when HDCP2.2 is Enabled */ + if (hdcp->value != DRM_MODE_CONTENT_PROTECTION_ENABLED || + !hdcp->hdcp2_encrypted) { + ret = -EINVAL; + goto out; + } + + if (WARN_ON(!intel_hdcp2_in_use(connector))) { + DRM_ERROR("HDCP2.2 link stopped the encryption, %x\n", + I915_READ(HDCP2_STATUS_DDI(port))); + ret = -ENXIO; + hdcp->value = DRM_MODE_CONTENT_PROTECTION_DESIRED; + schedule_work(&hdcp->prop_work); + goto out; + } + + ret = hdcp->shim->check_2_2_link(intel_dig_port); + if (ret == HDCP_LINK_PROTECTED) { + if (hdcp->value != DRM_MODE_CONTENT_PROTECTION_UNDESIRED) { + hdcp->value = DRM_MODE_CONTENT_PROTECTION_ENABLED; + schedule_work(&hdcp->prop_work); + } + goto out; + } + + DRM_DEBUG_KMS("[%s:%d] HDCP2.2 link failed, retrying auth\n", + connector->base.name, connector->base.base.id); + + ret = _intel_hdcp2_disable(connector); + if (ret) { + DRM_ERROR("[%s:%d] Failed to disable hdcp2.2 (%d)\n", + connector->base.name, connector->base.base.id, ret); + hdcp->value = DRM_MODE_CONTENT_PROTECTION_DESIRED; + schedule_work(&hdcp->prop_work); + goto out; + } + + ret = _intel_hdcp2_enable(connector); + if (ret) { + DRM_DEBUG_KMS("[%s:%d] Failed to enable hdcp2.2 (%d)\n", + connector->base.name, connector->base.base.id, + ret); + hdcp->value = DRM_MODE_CONTENT_PROTECTION_DESIRED; + schedule_work(&hdcp->prop_work); + goto out; + } + +out: + mutex_unlock(&hdcp->mutex); + return ret; +} + static void intel_hdcp_check_work(struct work_struct *work) { struct intel_hdcp *hdcp = container_of(to_delayed_work(work), @@ -1578,7 +1651,10 @@ static void intel_hdcp_check_work(struct work_struct *work) check_work); struct intel_connector *connector = intel_hdcp_to_connector(hdcp); - if (!intel_hdcp_check_link(connector)) + if (!intel_hdcp2_check_link(connector)) + schedule_delayed_work(&hdcp->check_work, + DRM_HDCP2_CHECK_PERIOD_MS); + else if (!intel_hdcp_check_link(connector)) schedule_delayed_work(&hdcp->check_work, DRM_HDCP_CHECK_PERIOD_MS); } @@ -1719,6 +1795,7 @@ int intel_hdcp_init(struct intel_connector *connector, int intel_hdcp_enable(struct intel_connector *connector) { struct intel_hdcp *hdcp = &connector->hdcp; + unsigned long check_link_interval = DRM_HDCP_CHECK_PERIOD_MS; int ret = -EINVAL; if (!hdcp->shim) @@ -1730,18 +1807,19 @@ int intel_hdcp_enable(struct intel_connector *connector) * Considering that HDCP2.2 is more secure than HDCP1.4, If the setup * is capable of HDCP2.2, it is preferred to use HDCP2.2. */ - if (intel_hdcp2_capable(connector)) + if (intel_hdcp2_capable(connector)) { ret = _intel_hdcp2_enable(connector); + if (!ret) + check_link_interval = DRM_HDCP2_CHECK_PERIOD_MS; + } /* When HDCP2.2 fails, HDCP1.4 will be attempted */ if (ret && intel_hdcp_capable(connector)) { ret = _intel_hdcp_enable(connector); - if (!ret) - schedule_delayed_work(&hdcp->check_work, - DRM_HDCP_CHECK_PERIOD_MS); } if (!ret) { + schedule_delayed_work(&hdcp->check_work, check_link_interval); hdcp->value = DRM_MODE_CONTENT_PROTECTION_ENABLED; schedule_work(&hdcp->prop_work); } From patchwork Thu Jan 31 06:59:30 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ramalingam C X-Patchwork-Id: 10789761 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 EDC451390 for ; Thu, 31 Jan 2019 07:06:43 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id EA6662EFB4 for ; Thu, 31 Jan 2019 07:06:43 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id DE332300F7; Thu, 31 Jan 2019 07:06:43 +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 9ACA62EFB4 for ; Thu, 31 Jan 2019 07:06:43 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id DC7226EB09; Thu, 31 Jan 2019 07:06:34 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by gabe.freedesktop.org (Postfix) with ESMTPS id 2FCCE6EB09; Thu, 31 Jan 2019 07:06:31 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 30 Jan 2019 23:06:30 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,543,1539673200"; d="scan'208";a="114128268" Received: from mint-dev.iind.intel.com ([10.223.25.164]) by orsmga008.jf.intel.com with ESMTP; 30 Jan 2019 23:06:28 -0800 From: Ramalingam C To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, daniel.vetter@ffwll.ch, tomas.winkler@intel.com, uma.shankar@intel.com Date: Thu, 31 Jan 2019 12:29:30 +0530 Message-Id: <1548917996-28081-15-git-send-email-ramalingam.c@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> References: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> Subject: [Intel-gfx] [PATCH v10 14/40] drm/i915: Handle HDCP2.2 downstream topology change X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP When repeater notifies a downstream topology change, this patch reauthenticate the repeater alone without disabling the hdcp encryption. If that fails then complete reauthentication is executed. v2: Rebased. v3: Typo in commit msg is fixed [Uma] v4: Rebased as part of patch reordering. Minor style fixes. v5: Rebased. v6: Rebased. v7: Errors due to sinks are reported as DEBUG logs. Signed-off-by: Ramalingam C Reviewed-by: Uma Shankar --- drivers/gpu/drm/i915/intel_hdcp.c | 20 ++++++++++++++++++-- 1 file changed, 18 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_hdcp.c b/drivers/gpu/drm/i915/intel_hdcp.c index 3feff921a547..7ff29fb0aa2f 100644 --- a/drivers/gpu/drm/i915/intel_hdcp.c +++ b/drivers/gpu/drm/i915/intel_hdcp.c @@ -1617,8 +1617,24 @@ static int intel_hdcp2_check_link(struct intel_connector *connector) goto out; } - DRM_DEBUG_KMS("[%s:%d] HDCP2.2 link failed, retrying auth\n", - connector->base.name, connector->base.base.id); + if (ret == HDCP_TOPOLOGY_CHANGE) { + if (hdcp->value == DRM_MODE_CONTENT_PROTECTION_UNDESIRED) + goto out; + + DRM_DEBUG_KMS("HDCP2.2 Downstream topology change\n"); + ret = hdcp2_authenticate_repeater_topology(connector); + if (!ret) { + hdcp->value = DRM_MODE_CONTENT_PROTECTION_ENABLED; + schedule_work(&hdcp->prop_work); + goto out; + } + DRM_DEBUG_KMS("[%s:%d] Repeater topology auth failed.(%d)\n", + connector->base.name, connector->base.base.id, + ret); + } else { + DRM_DEBUG_KMS("[%s:%d] HDCP2.2 link failed, retrying auth\n", + connector->base.name, connector->base.base.id); + } ret = _intel_hdcp2_disable(connector); if (ret) { From patchwork Thu Jan 31 06:59:31 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ramalingam C X-Patchwork-Id: 10789765 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 4C5D113BF for ; Thu, 31 Jan 2019 07:06:49 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 4944D2EFB4 for ; Thu, 31 Jan 2019 07:06:49 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 3DA4E300F7; Thu, 31 Jan 2019 07:06:49 +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 047432EFB4 for ; Thu, 31 Jan 2019 07:06:49 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 624EE6E677; Thu, 31 Jan 2019 07:06:36 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by gabe.freedesktop.org (Postfix) with ESMTPS id 8B3FC6E672; Thu, 31 Jan 2019 07:06:33 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 30 Jan 2019 23:06:33 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,543,1539673200"; d="scan'208";a="114128288" Received: from mint-dev.iind.intel.com ([10.223.25.164]) by orsmga008.jf.intel.com with ESMTP; 30 Jan 2019 23:06:31 -0800 From: Ramalingam C To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, daniel.vetter@ffwll.ch, tomas.winkler@intel.com, uma.shankar@intel.com Date: Thu, 31 Jan 2019 12:29:31 +0530 Message-Id: <1548917996-28081-16-git-send-email-ramalingam.c@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> References: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> Subject: [Intel-gfx] [PATCH v10 15/40] drm: removing the DP Errata msg and its msg id X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP Since DP ERRATA message is not defined at spec, those structure definition is removed from drm_hdcp.h Signed-off-by: Ramalingam C Suggested-by: Daniel Vetter Reviewed-by: Daniel Vetter Reviewed-by: Uma Shankar --- include/drm/drm_hdcp.h | 6 ------ 1 file changed, 6 deletions(-) diff --git a/include/drm/drm_hdcp.h b/include/drm/drm_hdcp.h index d4e98b11b4aa..f243408ecf26 100644 --- a/include/drm/drm_hdcp.h +++ b/include/drm/drm_hdcp.h @@ -69,7 +69,6 @@ #define HDCP_2_2_REP_SEND_ACK 15 #define HDCP_2_2_REP_STREAM_MANAGE 16 #define HDCP_2_2_REP_STREAM_READY 17 -#define HDCP_2_2_ERRATA_DP_STREAM_TYPE 50 #define HDCP_2_2_RTX_LEN 8 #define HDCP_2_2_RRX_LEN 8 @@ -220,11 +219,6 @@ struct hdcp2_rep_stream_ready { u8 m_prime[HDCP_2_2_MPRIME_LEN]; } __packed; -struct hdcp2_dp_errata_stream_type { - u8 msg_id; - u8 stream_type; -} __packed; - /* HDCP2.2 TIMEOUTs in mSec */ #define HDCP_2_2_CERT_TIMEOUT_MS 100 #define HDCP_2_2_HPRIME_NO_PAIRED_TIMEOUT_MS 1000 From patchwork Thu Jan 31 06:59:32 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ramalingam C X-Patchwork-Id: 10789773 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 E224B13BF for ; Thu, 31 Jan 2019 07:06:57 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id DE3082EFB4 for ; Thu, 31 Jan 2019 07:06:57 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id D20EA300F7; Thu, 31 Jan 2019 07:06:57 +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 3F9473002C for ; Thu, 31 Jan 2019 07:06:57 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 588BC89BF5; Thu, 31 Jan 2019 07:06:44 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by gabe.freedesktop.org (Postfix) with ESMTPS id 234726E672; Thu, 31 Jan 2019 07:06:36 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 30 Jan 2019 23:06:36 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,543,1539673200"; d="scan'208";a="114128305" Received: from mint-dev.iind.intel.com ([10.223.25.164]) by orsmga008.jf.intel.com with ESMTP; 30 Jan 2019 23:06:33 -0800 From: Ramalingam C To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, daniel.vetter@ffwll.ch, tomas.winkler@intel.com, uma.shankar@intel.com Date: Thu, 31 Jan 2019 12:29:32 +0530 Message-Id: <1548917996-28081-17-git-send-email-ramalingam.c@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> References: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> Subject: [Intel-gfx] [PATCH v10 16/40] drm/i915: Implement the HDCP2.2 support for DP X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP Implements the DP adaptation specific HDCP2.2 functions. These functions perform the DPCD read and write for communicating the HDCP2.2 auth message back and forth. v2: wait for cp_irq is merged with this patch. Rebased. v3: wait_queue is used for wait for cp_irq [Chris Wilson] v4: Style fixed. %s/PARING/PAIRING Few style fixes [Uma] v5: Lookup table for DP HDCP2.2 msg details [Daniel]. Extra lines are removed. v6: Rebased. v7: Fixed some regression introduced at v5. [Ankit] Macro HDCP_2_2_RX_CAPS_VERSION_VAL is reused [Uma] Converted a function to inline [Uma] %s/uintxx_t/uxx v8: Error due to the sinks are reported as DEBUG logs. Adjust to the new mei interface. v9: ARRAY_SIZE for no of array members [Jon & Daniel] return of the wait_for_cp_irq is made as void [Daniel] Wait for HDCP2.2 msg is done based on polling the reg bit than CP_IRQ based. [Daniel] hdcp adaptation is added as a const in the hdcp_shim [Daniel] v10: config_stream_type is redefined [Daniel] DP Errata specific defines are moved into intel_dp.c. Signed-off-by: Ramalingam C Signed-off-by: Ankit K Nautiyal Reviewed-by: Uma Shankar --- drivers/gpu/drm/i915/intel_dp.c | 333 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 333 insertions(+) diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 9ce05819fc11..b13c41220ce0 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -5843,6 +5843,333 @@ int intel_dp_hdcp_capable(struct intel_digital_port *intel_dig_port, return 0; } +struct hdcp2_dp_errata_stream_type { + u8 msg_id; + u8 stream_type; +} __packed; + +static struct hdcp2_dp_msg_data { + u8 msg_id; + u32 offset; + bool msg_detectable; + u32 timeout; + u32 timeout2; /* Added for non_paired situation */ + } hdcp2_msg_data[] = { + {HDCP_2_2_AKE_INIT, DP_HDCP_2_2_AKE_INIT_OFFSET, false, 0, 0}, + {HDCP_2_2_AKE_SEND_CERT, DP_HDCP_2_2_AKE_SEND_CERT_OFFSET, + false, HDCP_2_2_CERT_TIMEOUT_MS, 0}, + {HDCP_2_2_AKE_NO_STORED_KM, DP_HDCP_2_2_AKE_NO_STORED_KM_OFFSET, + false, 0, 0}, + {HDCP_2_2_AKE_STORED_KM, DP_HDCP_2_2_AKE_STORED_KM_OFFSET, + false, 0, 0}, + {HDCP_2_2_AKE_SEND_HPRIME, DP_HDCP_2_2_AKE_SEND_HPRIME_OFFSET, + true, HDCP_2_2_HPRIME_PAIRED_TIMEOUT_MS, + HDCP_2_2_HPRIME_NO_PAIRED_TIMEOUT_MS}, + {HDCP_2_2_AKE_SEND_PAIRING_INFO, + DP_HDCP_2_2_AKE_SEND_PAIRING_INFO_OFFSET, true, + HDCP_2_2_PAIRING_TIMEOUT_MS, 0}, + {HDCP_2_2_LC_INIT, DP_HDCP_2_2_LC_INIT_OFFSET, false, 0, 0}, + {HDCP_2_2_LC_SEND_LPRIME, DP_HDCP_2_2_LC_SEND_LPRIME_OFFSET, + false, HDCP_2_2_DP_LPRIME_TIMEOUT_MS, 0}, + {HDCP_2_2_SKE_SEND_EKS, DP_HDCP_2_2_SKE_SEND_EKS_OFFSET, false, + 0, 0}, + {HDCP_2_2_REP_SEND_RECVID_LIST, + DP_HDCP_2_2_REP_SEND_RECVID_LIST_OFFSET, true, + HDCP_2_2_RECVID_LIST_TIMEOUT_MS, 0}, + {HDCP_2_2_REP_SEND_ACK, DP_HDCP_2_2_REP_SEND_ACK_OFFSET, false, + 0, 0}, + {HDCP_2_2_REP_STREAM_MANAGE, + DP_HDCP_2_2_REP_STREAM_MANAGE_OFFSET, false, + 0, 0}, + {HDCP_2_2_REP_STREAM_READY, DP_HDCP_2_2_REP_STREAM_READY_OFFSET, + false, HDCP_2_2_STREAM_READY_TIMEOUT_MS, 0}, +/* local define to shovel this through the write_2_2 interface */ +#define HDCP_2_2_ERRATA_DP_STREAM_TYPE 50 + {HDCP_2_2_ERRATA_DP_STREAM_TYPE, + DP_HDCP_2_2_REG_STREAM_TYPE_OFFSET, false, + 0, 0}, + }; + +static inline +int intel_dp_hdcp2_read_rx_status(struct intel_digital_port *intel_dig_port, + u8 *rx_status) +{ + ssize_t ret; + + ret = drm_dp_dpcd_read(&intel_dig_port->dp.aux, + DP_HDCP_2_2_REG_RXSTATUS_OFFSET, rx_status, + HDCP_2_2_DP_RXSTATUS_LEN); + if (ret != HDCP_2_2_DP_RXSTATUS_LEN) { + DRM_DEBUG_KMS("Read bstatus from DP/AUX failed (%zd)\n", ret); + return ret >= 0 ? -EIO : ret; + } + + return 0; +} + +static +int hdcp2_detect_msg_availability(struct intel_digital_port *intel_dig_port, + u8 msg_id, bool *msg_ready) +{ + u8 rx_status; + int ret; + + *msg_ready = false; + ret = intel_dp_hdcp2_read_rx_status(intel_dig_port, &rx_status); + if (ret < 0) + return ret; + + switch (msg_id) { + case HDCP_2_2_AKE_SEND_HPRIME: + if (HDCP_2_2_DP_RXSTATUS_H_PRIME(rx_status)) + *msg_ready = true; + break; + case HDCP_2_2_AKE_SEND_PAIRING_INFO: + if (HDCP_2_2_DP_RXSTATUS_PAIRING(rx_status)) + *msg_ready = true; + break; + case HDCP_2_2_REP_SEND_RECVID_LIST: + if (HDCP_2_2_DP_RXSTATUS_READY(rx_status)) + *msg_ready = true; + break; + default: + DRM_ERROR("Unidentified msg_id: %d\n", msg_id); + return -EINVAL; + } + + return 0; +} + +static ssize_t +intel_dp_hdcp2_wait_for_msg(struct intel_digital_port *intel_dig_port, + struct hdcp2_dp_msg_data *hdcp2_msg_data) +{ + struct intel_dp *dp = &intel_dig_port->dp; + struct intel_hdcp *hdcp = &dp->attached_connector->hdcp; + u8 msg_id = hdcp2_msg_data->msg_id; + int ret, timeout; + bool msg_ready = false; + + if (msg_id == HDCP_2_2_AKE_SEND_HPRIME && !hdcp->is_paired) + timeout = hdcp2_msg_data->timeout2; + else + timeout = hdcp2_msg_data->timeout; + + /* + * There is no way to detect the CERT, LPRIME and STREAM_READY + * availability. So Wait for timeout and read the msg. + */ + if (!hdcp2_msg_data->msg_detectable) { + mdelay(timeout); + ret = 0; + } else { + /* TODO: In case if you need to wait on CP_IRQ, do it here */ + ret = __wait_for(ret = + hdcp2_detect_msg_availability(intel_dig_port, + msg_id, + &msg_ready), + !ret && msg_ready, timeout * 1000, + 1000, 5 * 1000); + + if (!msg_ready) + ret = -ETIMEDOUT; + } + + if (ret) + DRM_DEBUG_KMS("msg_id %d, ret %d, timeout(mSec): %d\n", + hdcp2_msg_data->msg_id, ret, timeout); + + return ret; +} + +static struct hdcp2_dp_msg_data *get_hdcp2_dp_msg_data(u8 msg_id) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(hdcp2_msg_data); i++) + if (hdcp2_msg_data[i].msg_id == msg_id) + return &hdcp2_msg_data[i]; + + return NULL; +} + +static +int intel_dp_hdcp2_write_msg(struct intel_digital_port *intel_dig_port, + void *buf, size_t size) +{ + unsigned int offset; + u8 *byte = buf; + ssize_t ret, bytes_to_write, len; + struct hdcp2_dp_msg_data *hdcp2_msg_data; + + hdcp2_msg_data = get_hdcp2_dp_msg_data(*byte); + if (!hdcp2_msg_data) + return -EINVAL; + + offset = hdcp2_msg_data->offset; + + /* No msg_id in DP HDCP2.2 msgs */ + bytes_to_write = size - 1; + byte++; + + while (bytes_to_write) { + len = bytes_to_write > DP_AUX_MAX_PAYLOAD_BYTES ? + DP_AUX_MAX_PAYLOAD_BYTES : bytes_to_write; + + ret = drm_dp_dpcd_write(&intel_dig_port->dp.aux, + offset, (void *)byte, len); + if (ret < 0) + return ret; + + bytes_to_write -= ret; + byte += ret; + offset += ret; + } + + return size; +} + +static +ssize_t get_receiver_id_list_size(struct intel_digital_port *intel_dig_port) +{ + u8 rx_info[HDCP_2_2_RXINFO_LEN]; + u32 dev_cnt; + ssize_t ret; + + ret = drm_dp_dpcd_read(&intel_dig_port->dp.aux, + DP_HDCP_2_2_REG_RXINFO_OFFSET, + (void *)rx_info, HDCP_2_2_RXINFO_LEN); + if (ret != HDCP_2_2_RXINFO_LEN) + return ret >= 0 ? -EIO : ret; + + dev_cnt = (HDCP_2_2_DEV_COUNT_HI(rx_info[0]) << 4 | + HDCP_2_2_DEV_COUNT_LO(rx_info[1])); + + if (dev_cnt > HDCP_2_2_MAX_DEVICE_COUNT) + dev_cnt = HDCP_2_2_MAX_DEVICE_COUNT; + + ret = sizeof(struct hdcp2_rep_send_receiverid_list) - + HDCP_2_2_RECEIVER_IDS_MAX_LEN + + (dev_cnt * HDCP_2_2_RECEIVER_ID_LEN); + + return ret; +} + +static +int intel_dp_hdcp2_read_msg(struct intel_digital_port *intel_dig_port, + u8 msg_id, void *buf, size_t size) +{ + unsigned int offset; + u8 *byte = buf; + ssize_t ret, bytes_to_recv, len; + struct hdcp2_dp_msg_data *hdcp2_msg_data; + + hdcp2_msg_data = get_hdcp2_dp_msg_data(msg_id); + if (!hdcp2_msg_data) + return -EINVAL; + offset = hdcp2_msg_data->offset; + + ret = intel_dp_hdcp2_wait_for_msg(intel_dig_port, hdcp2_msg_data); + if (ret < 0) + return ret; + + if (msg_id == HDCP_2_2_REP_SEND_RECVID_LIST) { + ret = get_receiver_id_list_size(intel_dig_port); + if (ret < 0) + return ret; + + size = ret; + } + bytes_to_recv = size - 1; + + /* DP adaptation msgs has no msg_id */ + byte++; + + while (bytes_to_recv) { + len = bytes_to_recv > DP_AUX_MAX_PAYLOAD_BYTES ? + DP_AUX_MAX_PAYLOAD_BYTES : bytes_to_recv; + + ret = drm_dp_dpcd_read(&intel_dig_port->dp.aux, offset, + (void *)byte, len); + if (ret < 0) { + DRM_DEBUG_KMS("msg_id %d, ret %zd\n", msg_id, ret); + return ret; + } + + bytes_to_recv -= ret; + byte += ret; + offset += ret; + } + byte = buf; + *byte = msg_id; + + return size; +} + +static +int intel_dp_hdcp2_config_stream_type(struct intel_digital_port *intel_dig_port, + bool is_repeater, u8 content_type) +{ + struct hdcp2_dp_errata_stream_type stream_type_msg; + + if (is_repeater) + return 0; + + /* + * Errata for DP: As Stream type is used for encryption, Receiver + * should be communicated with stream type for the decryption of the + * content. + * Repeater will be communicated with stream type as a part of it's + * auth later in time. + */ + stream_type_msg.msg_id = HDCP_2_2_ERRATA_DP_STREAM_TYPE; + stream_type_msg.stream_type = content_type; + + return intel_dp_hdcp2_write_msg(intel_dig_port, &stream_type_msg, + sizeof(stream_type_msg)); +} + +static +int intel_dp_hdcp2_check_link(struct intel_digital_port *intel_dig_port) +{ + u8 rx_status; + int ret; + + ret = intel_dp_hdcp2_read_rx_status(intel_dig_port, &rx_status); + if (ret) + return ret; + + if (HDCP_2_2_DP_RXSTATUS_REAUTH_REQ(rx_status)) + ret = HDCP_REAUTH_REQUEST; + else if (HDCP_2_2_DP_RXSTATUS_LINK_FAILED(rx_status)) + ret = HDCP_LINK_INTEGRITY_FAILURE; + else if (HDCP_2_2_DP_RXSTATUS_READY(rx_status)) + ret = HDCP_TOPOLOGY_CHANGE; + + return ret; +} + +static +int intel_dp_hdcp2_capable(struct intel_digital_port *intel_dig_port, + bool *capable) +{ + u8 rx_caps[3]; + int ret; + + *capable = false; + ret = drm_dp_dpcd_read(&intel_dig_port->dp.aux, + DP_HDCP_2_2_REG_RX_CAPS_OFFSET, + rx_caps, HDCP_2_2_RXCAPS_LEN); + if (ret != HDCP_2_2_RXCAPS_LEN) + return ret >= 0 ? -EIO : ret; + + if (rx_caps[0] == HDCP_2_2_RX_CAPS_VERSION_VAL && + HDCP_2_2_DP_HDCP_CAPABLE(rx_caps[2])) + *capable = true; + + return 0; +} + static const struct intel_hdcp_shim intel_dp_hdcp_shim = { .write_an_aksv = intel_dp_hdcp_write_an_aksv, .read_bksv = intel_dp_hdcp_read_bksv, @@ -5855,6 +6182,12 @@ static const struct intel_hdcp_shim intel_dp_hdcp_shim = { .toggle_signalling = intel_dp_hdcp_toggle_signalling, .check_link = intel_dp_hdcp_check_link, .hdcp_capable = intel_dp_hdcp_capable, + .write_2_2_msg = intel_dp_hdcp2_write_msg, + .read_2_2_msg = intel_dp_hdcp2_read_msg, + .config_stream_type = intel_dp_hdcp2_config_stream_type, + .check_2_2_link = intel_dp_hdcp2_check_link, + .hdcp_2_2_capable = intel_dp_hdcp2_capable, + .protocol = HDCP_PROTOCOL_DP, }; static void intel_edp_panel_vdd_sanitize(struct intel_dp *intel_dp) From patchwork Thu Jan 31 06:59:33 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ramalingam C X-Patchwork-Id: 10789769 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 EA58B1390 for ; Thu, 31 Jan 2019 07:06:54 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id E7B252EFB4 for ; Thu, 31 Jan 2019 07:06:54 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id DC100300F7; Thu, 31 Jan 2019 07:06:54 +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 675282EFB4 for ; Thu, 31 Jan 2019 07:06:54 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id B90136EBDE; Thu, 31 Jan 2019 07:06:41 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by gabe.freedesktop.org (Postfix) with ESMTPS id B356D6EBD4; Thu, 31 Jan 2019 07:06:38 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 30 Jan 2019 23:06:38 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,543,1539673200"; d="scan'208";a="114128323" Received: from mint-dev.iind.intel.com ([10.223.25.164]) by orsmga008.jf.intel.com with ESMTP; 30 Jan 2019 23:06:36 -0800 From: Ramalingam C To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, daniel.vetter@ffwll.ch, tomas.winkler@intel.com, uma.shankar@intel.com Date: Thu, 31 Jan 2019 12:29:33 +0530 Message-Id: <1548917996-28081-18-git-send-email-ramalingam.c@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> References: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> Subject: [Intel-gfx] [PATCH v10 17/40] drm/i915: Implement the HDCP2.2 support for HDMI X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP Implements the HDMI adaptation specific HDCP2.2 operations. Basically these are DDC read and write for authenticating through HDCP2.2 messages. v2: Rebased. v3: No more special handling of Gmbus burst read for AKE_SEND_CERT. Style fixed with few naming. [Uma] %s/PARING/PAIRING v4: msg_sz is initialized at definition. Lookup table is defined for HDMI HDCP2.2 msgs [Daniel]. v5: Rebased. v6: Make a function as inline [Uma] %s/uintxx_t/uxx v7: Errors due to sinks are reported as DEBUG logs. Adjust to the new mei interface. v8: ARRAY_SIZE for the # of array members [Jon & Daniel]. hdcp adaptation is added as a const in the hdcp_shim [Daniel] Signed-off-by: Ramalingam C Reviewed-by: Uma Shankar --- drivers/gpu/drm/i915/intel_hdmi.c | 189 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 189 insertions(+) diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c index ab376a31cdab..3b4fe7048af9 100644 --- a/drivers/gpu/drm/i915/intel_hdmi.c +++ b/drivers/gpu/drm/i915/intel_hdmi.c @@ -1129,6 +1129,190 @@ bool intel_hdmi_hdcp_check_link(struct intel_digital_port *intel_dig_port) return true; } +static struct hdcp2_hdmi_msg_data { + u8 msg_id; + u32 timeout; + u32 timeout2; + } hdcp2_msg_data[] = { + {HDCP_2_2_AKE_INIT, 0, 0}, + {HDCP_2_2_AKE_SEND_CERT, HDCP_2_2_CERT_TIMEOUT_MS, 0}, + {HDCP_2_2_AKE_NO_STORED_KM, 0, 0}, + {HDCP_2_2_AKE_STORED_KM, 0, 0}, + {HDCP_2_2_AKE_SEND_HPRIME, HDCP_2_2_HPRIME_PAIRED_TIMEOUT_MS, + HDCP_2_2_HPRIME_NO_PAIRED_TIMEOUT_MS}, + {HDCP_2_2_AKE_SEND_PAIRING_INFO, HDCP_2_2_PAIRING_TIMEOUT_MS, + 0}, + {HDCP_2_2_LC_INIT, 0, 0}, + {HDCP_2_2_LC_SEND_LPRIME, HDCP_2_2_HDMI_LPRIME_TIMEOUT_MS, 0}, + {HDCP_2_2_SKE_SEND_EKS, 0, 0}, + {HDCP_2_2_REP_SEND_RECVID_LIST, + HDCP_2_2_RECVID_LIST_TIMEOUT_MS, 0}, + {HDCP_2_2_REP_SEND_ACK, 0, 0}, + {HDCP_2_2_REP_STREAM_MANAGE, 0, 0}, + {HDCP_2_2_REP_STREAM_READY, HDCP_2_2_STREAM_READY_TIMEOUT_MS, + 0}, + }; + +static +int intel_hdmi_hdcp2_read_rx_status(struct intel_digital_port *intel_dig_port, + uint8_t *rx_status) +{ + return intel_hdmi_hdcp_read(intel_dig_port, + HDCP_2_2_HDMI_REG_RXSTATUS_OFFSET, + rx_status, + HDCP_2_2_HDMI_RXSTATUS_LEN); +} + +static int get_hdcp2_msg_timeout(u8 msg_id, bool is_paired) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(hdcp2_msg_data); i++) + if (hdcp2_msg_data[i].msg_id == msg_id && + (msg_id != HDCP_2_2_AKE_SEND_HPRIME || is_paired)) + return hdcp2_msg_data[i].timeout; + else if (hdcp2_msg_data[i].msg_id == msg_id) + return hdcp2_msg_data[i].timeout2; + + return -EINVAL; +} + +static inline +int hdcp2_detect_msg_availability(struct intel_digital_port *intel_digital_port, + u8 msg_id, bool *msg_ready, + ssize_t *msg_sz) +{ + u8 rx_status[HDCP_2_2_HDMI_RXSTATUS_LEN]; + int ret; + + ret = intel_hdmi_hdcp2_read_rx_status(intel_digital_port, rx_status); + if (ret < 0) { + DRM_DEBUG_KMS("rx_status read failed. Err %d\n", ret); + return ret; + } + + *msg_sz = ((HDCP_2_2_HDMI_RXSTATUS_MSG_SZ_HI(rx_status[1]) << 8) | + rx_status[0]); + + if (msg_id == HDCP_2_2_REP_SEND_RECVID_LIST) + *msg_ready = (HDCP_2_2_HDMI_RXSTATUS_READY(rx_status[1]) && + *msg_sz); + else + *msg_ready = *msg_sz; + + return 0; +} + +static ssize_t +intel_hdmi_hdcp2_wait_for_msg(struct intel_digital_port *intel_dig_port, + u8 msg_id, bool paired) +{ + bool msg_ready = false; + int timeout, ret; + ssize_t msg_sz = 0; + + timeout = get_hdcp2_msg_timeout(msg_id, paired); + if (timeout < 0) + return timeout; + + ret = __wait_for(ret = hdcp2_detect_msg_availability(intel_dig_port, + msg_id, &msg_ready, + &msg_sz), + !ret && msg_ready && msg_sz, timeout * 1000, + 1000, 5 * 1000); + if (ret) + DRM_DEBUG_KMS("msg_id: %d, ret: %d, timeout: %d\n", + msg_id, ret, timeout); + + return ret ? ret : msg_sz; +} + +static +int intel_hdmi_hdcp2_write_msg(struct intel_digital_port *intel_dig_port, + void *buf, size_t size) +{ + unsigned int offset; + + offset = HDCP_2_2_HDMI_REG_WR_MSG_OFFSET; + return intel_hdmi_hdcp_write(intel_dig_port, offset, buf, size); +} + +static +int intel_hdmi_hdcp2_read_msg(struct intel_digital_port *intel_dig_port, + u8 msg_id, void *buf, size_t size) +{ + struct intel_hdmi *hdmi = &intel_dig_port->hdmi; + struct intel_hdcp *hdcp = &hdmi->attached_connector->hdcp; + unsigned int offset; + ssize_t ret; + + ret = intel_hdmi_hdcp2_wait_for_msg(intel_dig_port, msg_id, + hdcp->is_paired); + if (ret < 0) + return ret; + + /* + * Available msg size should be equal to or lesser than the + * available buffer. + */ + if (ret > size) { + DRM_DEBUG_KMS("msg_sz(%zd) is more than exp size(%zu)\n", + ret, size); + return -1; + } + + offset = HDCP_2_2_HDMI_REG_RD_MSG_OFFSET; + ret = intel_hdmi_hdcp_read(intel_dig_port, offset, buf, ret); + if (ret) + DRM_DEBUG_KMS("Failed to read msg_id: %d(%zd)\n", msg_id, ret); + + return ret; +} + +static +int intel_hdmi_hdcp2_check_link(struct intel_digital_port *intel_dig_port) +{ + u8 rx_status[HDCP_2_2_HDMI_RXSTATUS_LEN]; + int ret; + + ret = intel_hdmi_hdcp2_read_rx_status(intel_dig_port, rx_status); + if (ret) + return ret; + + /* + * Re-auth request and Link Integrity Failures are represented by + * same bit. i.e reauth_req. + */ + if (HDCP_2_2_HDMI_RXSTATUS_REAUTH_REQ(rx_status[1])) + ret = HDCP_REAUTH_REQUEST; + else if (HDCP_2_2_HDMI_RXSTATUS_READY(rx_status[1])) + ret = HDCP_TOPOLOGY_CHANGE; + + return ret; +} + +static +int intel_hdmi_hdcp2_capable(struct intel_digital_port *intel_dig_port, + bool *capable) +{ + u8 hdcp2_version; + int ret; + + *capable = false; + ret = intel_hdmi_hdcp_read(intel_dig_port, HDCP_2_2_HDMI_REG_VER_OFFSET, + &hdcp2_version, sizeof(hdcp2_version)); + if (!ret && hdcp2_version & HDCP_2_2_HDMI_SUPPORT_MASK) + *capable = true; + + return ret; +} + +static inline +enum hdcp_wired_protocol intel_hdmi_hdcp2_protocol(void) +{ + return HDCP_PROTOCOL_HDMI; +} + static const struct intel_hdcp_shim intel_hdmi_hdcp_shim = { .write_an_aksv = intel_hdmi_hdcp_write_an_aksv, .read_bksv = intel_hdmi_hdcp_read_bksv, @@ -1140,6 +1324,11 @@ static const struct intel_hdcp_shim intel_hdmi_hdcp_shim = { .read_v_prime_part = intel_hdmi_hdcp_read_v_prime_part, .toggle_signalling = intel_hdmi_hdcp_toggle_signalling, .check_link = intel_hdmi_hdcp_check_link, + .write_2_2_msg = intel_hdmi_hdcp2_write_msg, + .read_2_2_msg = intel_hdmi_hdcp2_read_msg, + .check_2_2_link = intel_hdmi_hdcp2_check_link, + .hdcp_2_2_capable = intel_hdmi_hdcp2_capable, + .protocol = HDCP_PROTOCOL_HDMI, }; static void intel_hdmi_prepare(struct intel_encoder *encoder, From patchwork Thu Jan 31 06:59:34 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ramalingam C X-Patchwork-Id: 10789783 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 1117613BF for ; Thu, 31 Jan 2019 07:07:09 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 0F5AD2EFB4 for ; Thu, 31 Jan 2019 07:07:09 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 0393130427; Thu, 31 Jan 2019 07:07:09 +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 9D4C52EFB4 for ; Thu, 31 Jan 2019 07:07:08 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 9F0EB89F6D; Thu, 31 Jan 2019 07:06:49 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by gabe.freedesktop.org (Postfix) with ESMTPS id 45FCF6EBD1; Thu, 31 Jan 2019 07:06:41 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 30 Jan 2019 23:06:41 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,543,1539673200"; d="scan'208";a="114128337" Received: from mint-dev.iind.intel.com ([10.223.25.164]) by orsmga008.jf.intel.com with ESMTP; 30 Jan 2019 23:06:38 -0800 From: Ramalingam C To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, daniel.vetter@ffwll.ch, tomas.winkler@intel.com, uma.shankar@intel.com Date: Thu, 31 Jan 2019 12:29:34 +0530 Message-Id: <1548917996-28081-19-git-send-email-ramalingam.c@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> References: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> Subject: [Intel-gfx] [PATCH v10 18/40] drm/i915: CP_IRQ handling for DP HDCP2.2 msgs X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP Implements the Waitqueue is created to wait for CP_IRQ Signaling the CP_IRQ arrival through atomic variable. For applicable DP HDCP2.2 msgs read wait for CP_IRQ. As per HDCP2.2 spec "HDCP Transmitters must process CP_IRQ interrupts when they are received from HDCP Receivers" Without CP_IRQ processing, DP HDCP2.2 H_Prime msg was getting corrupted while reading it based on corresponding status bit. This creates the random failures in reading the DP HDCP2.2 msgs. Signed-off-by: Ramalingam C --- drivers/gpu/drm/i915/intel_dp.c | 33 +++++++++++++++++++++++++-------- drivers/gpu/drm/i915/intel_drv.h | 7 +++++++ drivers/gpu/drm/i915/intel_hdcp.c | 6 ++++++ 3 files changed, 38 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index b13c41220ce0..4e36df266ab3 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -5619,6 +5619,24 @@ void intel_dp_encoder_suspend(struct intel_encoder *intel_encoder) edp_panel_vdd_off_sync(intel_dp); } +static void intel_dp_hdcp_wait_for_cp_irq(struct intel_hdcp *hdcp, + int timeout) +{ + long ret; + + /* Reinit */ + atomic_set(&hdcp->cp_irq_recved, 0); + +#define C (atomic_read(&hdcp->cp_irq_recved) > 0) + ret = wait_event_interruptible_timeout(hdcp->cp_irq_queue, C, + msecs_to_jiffies(timeout)); + + if (ret > 0) + atomic_set(&hdcp->cp_irq_recved, 0); + else if (!ret) + DRM_DEBUG_KMS("Timedout at waiting for CP_IRQ\n"); +} + static int intel_dp_hdcp_write_an_aksv(struct intel_digital_port *intel_dig_port, u8 *an) @@ -5963,14 +5981,13 @@ intel_dp_hdcp2_wait_for_msg(struct intel_digital_port *intel_dig_port, mdelay(timeout); ret = 0; } else { - /* TODO: In case if you need to wait on CP_IRQ, do it here */ - ret = __wait_for(ret = - hdcp2_detect_msg_availability(intel_dig_port, - msg_id, - &msg_ready), - !ret && msg_ready, timeout * 1000, - 1000, 5 * 1000); - + /* + * Ignoring the return of the intel_dp_hdcp_wait_for_cp_irq, + * Just to detect the msg availability before failing it. + */ + intel_dp_hdcp_wait_for_cp_irq(hdcp, timeout); + ret = hdcp2_detect_msg_availability(intel_dig_port, + msg_id, &msg_ready); if (!msg_ready) ret = -ETIMEDOUT; } diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index 747fe7361287..1901d12bacc4 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -464,6 +464,13 @@ struct intel_hdcp { * over re-Auth has to be triggered. */ u32 seq_num_m; + + /* + * Work queue to signal the CP_IRQ. Used for the waiters to read the + * available information from HDCP DP sink. + */ + wait_queue_head_t cp_irq_queue; + atomic_t cp_irq_recved; }; struct intel_connector { diff --git a/drivers/gpu/drm/i915/intel_hdcp.c b/drivers/gpu/drm/i915/intel_hdcp.c index 7ff29fb0aa2f..f38feeadb363 100644 --- a/drivers/gpu/drm/i915/intel_hdcp.c +++ b/drivers/gpu/drm/i915/intel_hdcp.c @@ -1805,6 +1805,9 @@ int intel_hdcp_init(struct intel_connector *connector, if (hdcp2_supported) intel_hdcp2_init(connector); + atomic_set(&hdcp->cp_irq_recved, 0); + init_waitqueue_head(&hdcp->cp_irq_queue); + return 0; } @@ -1908,6 +1911,9 @@ void intel_hdcp_handle_cp_irq(struct intel_connector *connector) if (!hdcp->shim) return; + atomic_set(&connector->hdcp.cp_irq_recved, 1); + wake_up_all(&connector->hdcp.cp_irq_queue); + /* * CP_IRQ could be triggered due to 1. HDCP2.2 auth msgs availability, * 2. link failure and 3. repeater reauth request. At present we dont From patchwork Thu Jan 31 06:59:35 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ramalingam C X-Patchwork-Id: 10789787 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 2E50D1390 for ; Thu, 31 Jan 2019 07:07:10 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 2B0192EFB4 for ; Thu, 31 Jan 2019 07:07:10 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 1F769300F7; Thu, 31 Jan 2019 07:07:10 +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=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 E37E02EFB4 for ; Thu, 31 Jan 2019 07:07:09 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 0D0486EBD4; Thu, 31 Jan 2019 07:06:50 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by gabe.freedesktop.org (Postfix) with ESMTPS id C30C36EBD1; Thu, 31 Jan 2019 07:06:43 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 30 Jan 2019 23:06:43 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,543,1539673200"; d="scan'208";a="114128353" Received: from mint-dev.iind.intel.com ([10.223.25.164]) by orsmga008.jf.intel.com with ESMTP; 30 Jan 2019 23:06:41 -0800 From: Ramalingam C To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, daniel.vetter@ffwll.ch, tomas.winkler@intel.com, uma.shankar@intel.com Date: Thu, 31 Jan 2019 12:29:35 +0530 Message-Id: <1548917996-28081-20-git-send-email-ramalingam.c@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> References: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> Subject: [Intel-gfx] [PATCH v10 19/40] drm/i915: Add HDCP2.2 support for DP connectors X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP On DP connector init, intel_hdcp_init is passed with a flag for hdcp2.2 support based on the platform capability. v2: Rebased. v3: Collected the reviewed-by received. Signed-off-by: Ramalingam C Reviewed-by: Uma Shankar --- drivers/gpu/drm/i915/intel_dp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 4e36df266ab3..88c889770517 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -7301,7 +7301,7 @@ intel_dp_init_connector(struct intel_digital_port *intel_dig_port, if (is_hdcp_supported(dev_priv, port) && !intel_dp_is_edp(intel_dp)) { int ret = intel_hdcp_init(intel_connector, &intel_dp_hdcp_shim, - false); + is_hdcp2_supported(dev_priv)); if (ret) DRM_DEBUG_KMS("HDCP init failed, skipping.\n"); } From patchwork Thu Jan 31 06:59:36 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ramalingam C X-Patchwork-Id: 10789785 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 5EE8E184E for ; Thu, 31 Jan 2019 07:07:09 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 5A97D2EFB4 for ; Thu, 31 Jan 2019 07:07:09 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 4DC823042C; Thu, 31 Jan 2019 07:07:09 +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 1B7E83043C for ; Thu, 31 Jan 2019 07:07:09 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id B009989F71; Thu, 31 Jan 2019 07:06:49 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by gabe.freedesktop.org (Postfix) with ESMTPS id 5BF3889CF3; Thu, 31 Jan 2019 07:06:46 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 30 Jan 2019 23:06:46 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,543,1539673200"; d="scan'208";a="114128368" Received: from mint-dev.iind.intel.com ([10.223.25.164]) by orsmga008.jf.intel.com with ESMTP; 30 Jan 2019 23:06:43 -0800 From: Ramalingam C To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, daniel.vetter@ffwll.ch, tomas.winkler@intel.com, uma.shankar@intel.com Date: Thu, 31 Jan 2019 12:29:36 +0530 Message-Id: <1548917996-28081-21-git-send-email-ramalingam.c@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> References: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> Subject: [Intel-gfx] [PATCH v10 20/40] drm/i915: Add HDCP2.2 support for HDMI connectors X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP On HDMI connector init, intel_hdcp_init is passed with a flag for hdcp2.2 support based on the platform capability. v2: Rebased. v3: Collected the reviewed-by received. Signed-off-by: Ramalingam C Reviewed-by: Uma Shankar --- drivers/gpu/drm/i915/intel_hdmi.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c index 3b4fe7048af9..2c4bf6d0c39f 100644 --- a/drivers/gpu/drm/i915/intel_hdmi.c +++ b/drivers/gpu/drm/i915/intel_hdmi.c @@ -2621,7 +2621,8 @@ void intel_hdmi_init_connector(struct intel_digital_port *intel_dig_port, if (is_hdcp_supported(dev_priv, port)) { int ret = intel_hdcp_init(intel_connector, - &intel_hdmi_hdcp_shim, false); + &intel_hdmi_hdcp_shim, + is_hdcp2_supported(dev_priv)); if (ret) DRM_DEBUG_KMS("HDCP init failed, skipping.\n"); } From patchwork Thu Jan 31 06:59:37 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ramalingam C X-Patchwork-Id: 10789789 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 45F901390 for ; Thu, 31 Jan 2019 07:07:11 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 438E42EFB4 for ; Thu, 31 Jan 2019 07:07:11 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 38390300F7; Thu, 31 Jan 2019 07:07:11 +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 D38042EFB4 for ; Thu, 31 Jan 2019 07:07:10 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 529226EBD7; Thu, 31 Jan 2019 07:06:50 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by gabe.freedesktop.org (Postfix) with ESMTPS id A0C586EBD6; Thu, 31 Jan 2019 07:06:48 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 30 Jan 2019 23:06:48 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,543,1539673200"; d="scan'208";a="114128387" Received: from mint-dev.iind.intel.com ([10.223.25.164]) by orsmga008.jf.intel.com with ESMTP; 30 Jan 2019 23:06:46 -0800 From: Ramalingam C To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, daniel.vetter@ffwll.ch, tomas.winkler@intel.com, uma.shankar@intel.com Date: Thu, 31 Jan 2019 12:29:37 +0530 Message-Id: <1548917996-28081-22-git-send-email-ramalingam.c@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> References: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> Subject: [Intel-gfx] [PATCH v10 21/40] mei: bus: whitelist hdcp client X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP From: Tomas Winkler Whitelist HDCP client for in kernel drm use v2: Rebased. Signed-off-by: Tomas Winkler --- drivers/misc/mei/bus-fixup.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/drivers/misc/mei/bus-fixup.c b/drivers/misc/mei/bus-fixup.c index 80215c312f0e..5fcac02233af 100644 --- a/drivers/misc/mei/bus-fixup.c +++ b/drivers/misc/mei/bus-fixup.c @@ -40,6 +40,9 @@ static const uuid_le mei_nfc_info_guid = MEI_UUID_NFC_INFO; #define MEI_UUID_MKHIF_FIX UUID_LE(0x55213584, 0x9a29, 0x4916, \ 0xba, 0xdf, 0xf, 0xb7, 0xed, 0x68, 0x2a, 0xeb) +#define MEI_UUID_HDCP UUID_LE(0xB638AB7E, 0x94E2, 0x4EA2, \ + 0xA5, 0x52, 0xD1, 0xC5, 0x4B, 0x62, 0x7F, 0x04) + #define MEI_UUID_ANY NULL_UUID_LE /** @@ -71,6 +74,18 @@ static void blacklist(struct mei_cl_device *cldev) cldev->do_match = 0; } +/** + * whitelist - forcefully whitelist client + * + * @cldev: me clients device + */ +static void whitelist(struct mei_cl_device *cldev) +{ + dev_dbg(&cldev->dev, "running hook %s\n", __func__); + + cldev->do_match = 1; +} + #define OSTYPE_LINUX 2 struct mei_os_ver { __le16 build; @@ -472,6 +487,7 @@ static struct mei_fixup { MEI_FIXUP(MEI_UUID_NFC_HCI, mei_nfc), MEI_FIXUP(MEI_UUID_WD, mei_wd), MEI_FIXUP(MEI_UUID_MKHIF_FIX, mei_mkhi_fix), + MEI_FIXUP(MEI_UUID_HDCP, whitelist), }; /** From patchwork Thu Jan 31 06:59:38 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ramalingam C X-Patchwork-Id: 10789795 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 0B74B1390 for ; Thu, 31 Jan 2019 07:07:18 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 084F92EFB4 for ; Thu, 31 Jan 2019 07:07:18 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id F0966300F7; Thu, 31 Jan 2019 07:07:17 +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 B337C2EFB4 for ; Thu, 31 Jan 2019 07:07:17 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 977586EBD8; Thu, 31 Jan 2019 07:06:54 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by gabe.freedesktop.org (Postfix) with ESMTPS id EDDBB6EBDB; Thu, 31 Jan 2019 07:06:50 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 30 Jan 2019 23:06:50 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,543,1539673200"; d="scan'208";a="114128405" Received: from mint-dev.iind.intel.com ([10.223.25.164]) by orsmga008.jf.intel.com with ESMTP; 30 Jan 2019 23:06:48 -0800 From: Ramalingam C To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, daniel.vetter@ffwll.ch, tomas.winkler@intel.com, uma.shankar@intel.com Date: Thu, 31 Jan 2019 12:29:38 +0530 Message-Id: <1548917996-28081-23-git-send-email-ramalingam.c@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> References: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> Subject: [Intel-gfx] [PATCH v10 22/40] mei: bus: export to_mei_cl_device for mei client device drivers X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP From: Tomas Winkler Export to_mei_cl_device macro, it is needed also in mei client drivers. Signed-off-by: Tomas Winkler --- drivers/misc/mei/bus.c | 1 - include/linux/mei_cl_bus.h | 2 ++ 2 files changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/misc/mei/bus.c b/drivers/misc/mei/bus.c index fc3872fe7b25..e5456faf00e6 100644 --- a/drivers/misc/mei/bus.c +++ b/drivers/misc/mei/bus.c @@ -28,7 +28,6 @@ #include "client.h" #define to_mei_cl_driver(d) container_of(d, struct mei_cl_driver, driver) -#define to_mei_cl_device(d) container_of(d, struct mei_cl_device, dev) /** * __mei_cl_send - internal client send (write) diff --git a/include/linux/mei_cl_bus.h b/include/linux/mei_cl_bus.h index 7fde40e17c8b..03b6ba2a63f8 100644 --- a/include/linux/mei_cl_bus.h +++ b/include/linux/mei_cl_bus.h @@ -55,6 +55,8 @@ struct mei_cl_device { void *priv_data; }; +#define to_mei_cl_device(d) container_of(d, struct mei_cl_device, dev) + struct mei_cl_driver { struct device_driver driver; const char *name; From patchwork Thu Jan 31 06:59:39 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Ramalingam C X-Patchwork-Id: 10789807 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 4F5F513BF for ; Thu, 31 Jan 2019 07:07:27 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 4A3DD2EFB4 for ; Thu, 31 Jan 2019 07:07:27 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 3E702300F7; Thu, 31 Jan 2019 07:07:27 +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=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 D6E0E2EFB4 for ; Thu, 31 Jan 2019 07:07:26 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 8F8BA6EBE0; Thu, 31 Jan 2019 07:07:04 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by gabe.freedesktop.org (Postfix) with ESMTPS id 840B36EBDA; Thu, 31 Jan 2019 07:06:53 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 30 Jan 2019 23:06:53 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,543,1539673200"; d="scan'208";a="114128421" Received: from mint-dev.iind.intel.com ([10.223.25.164]) by orsmga008.jf.intel.com with ESMTP; 30 Jan 2019 23:06:51 -0800 From: Ramalingam C To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, daniel.vetter@ffwll.ch, tomas.winkler@intel.com, uma.shankar@intel.com Date: Thu, 31 Jan 2019 12:29:39 +0530 Message-Id: <1548917996-28081-24-git-send-email-ramalingam.c@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> References: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v10 23/40] misc/mei/hdcp: Client driver for HDCP application X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP ME FW is contributes a vital role in HDCP2.2 authentication. HDCP2.2 driver needs to communicate to ME FW for each step of the HDCP2.2 authentication. ME FW prepare and HDCP2.2 authentication parameters and encrypt them as per spec. With such parameter Driver prepares HDCP2.2 auth messages and communicate with HDCP2.2 sink. Similarly HDCP2. sink's response is shared with ME FW for decrypt and verification. Once All the steps of HDCP2.2 authentications are complete on driver's request ME FW will configure the port as authenticated and supply the HDCP keys to the Gen HW for encryption. Only after this stage HDCP2.2 driver can start the HDCP2.2 encryption for a port. ME FW is interfaced to kernel through MEI Bus Driver. To obtain the HDCP2.2 services from the ME FW through MEI Bus driver MEI Client Driver is developed. v2: hdcp files are moved to drivers/misc/mei/hdcp/ [Tomas] v3: Squashed the Kbuild support [Tomas] UUID renamed and Module License is modified [Tomas] drv_data is set to null at remove [Tomas] v4: Module name is changed to "MEI HDCP" I915 Selects the MEI_HDCP v5: Remove redundant text from the License header Fix malformed licence Removed the drv_data resetting. v6: K-Doc addition. [Tomas] Signed-off-by: Ramalingam C Signed-off-by: Tomas Winkler --- drivers/misc/mei/Kconfig | 7 +++++ drivers/misc/mei/Makefile | 2 ++ drivers/misc/mei/hdcp/Makefile | 7 +++++ drivers/misc/mei/hdcp/mei_hdcp.c | 65 ++++++++++++++++++++++++++++++++++++++++ 4 files changed, 81 insertions(+) create mode 100644 drivers/misc/mei/hdcp/Makefile create mode 100644 drivers/misc/mei/hdcp/mei_hdcp.c diff --git a/drivers/misc/mei/Kconfig b/drivers/misc/mei/Kconfig index c49e1d2269af..9c518b7f0011 100644 --- a/drivers/misc/mei/Kconfig +++ b/drivers/misc/mei/Kconfig @@ -43,3 +43,10 @@ config INTEL_MEI_TXE Supported SoCs: Intel Bay Trail + +config INTEL_MEI_HDCP + tristate "Intel HDCP2.2 services of ME Interface" + select INTEL_MEI_ME + depends on DRM_I915 + help + MEI Support for HDCP2.2 Services on Intel SoCs. diff --git a/drivers/misc/mei/Makefile b/drivers/misc/mei/Makefile index d9215fc4e499..8c2d9565a4cb 100644 --- a/drivers/misc/mei/Makefile +++ b/drivers/misc/mei/Makefile @@ -24,3 +24,5 @@ mei-txe-objs += hw-txe.o mei-$(CONFIG_EVENT_TRACING) += mei-trace.o CFLAGS_mei-trace.o = -I$(src) + +obj-$(CONFIG_INTEL_MEI_HDCP) += hdcp/ diff --git a/drivers/misc/mei/hdcp/Makefile b/drivers/misc/mei/hdcp/Makefile new file mode 100644 index 000000000000..b2de072aa0de --- /dev/null +++ b/drivers/misc/mei/hdcp/Makefile @@ -0,0 +1,7 @@ +# SPDX-License-Identifier: GPL-2.0+ +# +# Copyright (c) 2017-2018, Intel Corporation. +# +# Makefile - HDCP client driver for Intel MEI Bus Driver. + +obj-$(CONFIG_INTEL_MEI_HDCP) += mei_hdcp.o diff --git a/drivers/misc/mei/hdcp/mei_hdcp.c b/drivers/misc/mei/hdcp/mei_hdcp.c new file mode 100644 index 000000000000..ca5010ad7dd7 --- /dev/null +++ b/drivers/misc/mei/hdcp/mei_hdcp.c @@ -0,0 +1,65 @@ +// SPDX-License-Identifier: (GPL-2.0+) +/* + * Copyright © 2017-2018 Intel Corporation + * + * Mei_hdcp.c: HDCP client driver for mei bus + * + * Authors: + * Ramalingam C + */ + +/** + * DOC: MEI_HDCP Client Driver + * + * This is a client driver to the mei_bus to make the HDCP2.2 services of + * ME FW available for the interested consumers like I915. + * + * This module will act as a translation layer between HDCP protocol + * implementor(I915) and ME FW by translating HDCP2.2 authentication + * messages to ME FW command payloads and vice versa. + */ + +#include +#include +#include +#include + +static int mei_hdcp_probe(struct mei_cl_device *cldev, + const struct mei_cl_device_id *id) +{ + int ret; + + ret = mei_cldev_enable(cldev); + if (ret < 0) + dev_err(&cldev->dev, "mei_cldev_enable Failed. %d\n", ret); + + return ret; +} + +static int mei_hdcp_remove(struct mei_cl_device *cldev) +{ + return mei_cldev_disable(cldev); +} + +#define MEI_UUID_HDCP UUID_LE(0xB638AB7E, 0x94E2, 0x4EA2, 0xA5, \ + 0x52, 0xD1, 0xC5, 0x4B, \ + 0x62, 0x7F, 0x04) + +static struct mei_cl_device_id mei_hdcp_tbl[] = { + { .uuid = MEI_UUID_HDCP, .version = MEI_CL_VERSION_ANY }, + { } +}; +MODULE_DEVICE_TABLE(mei, mei_hdcp_tbl); + +static struct mei_cl_driver mei_hdcp_driver = { + .id_table = mei_hdcp_tbl, + .name = KBUILD_MODNAME, + .probe = mei_hdcp_probe, + .remove = mei_hdcp_remove, +}; + +module_mei_cl_driver(mei_hdcp_driver); + +MODULE_AUTHOR("Intel Corporation"); +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("MEI HDCP"); From patchwork Thu Jan 31 06:59:40 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Ramalingam C X-Patchwork-Id: 10789803 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 033D41390 for ; Thu, 31 Jan 2019 07:07:25 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id F3AD62EFB4 for ; Thu, 31 Jan 2019 07:07:24 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id E75BB300F7; Thu, 31 Jan 2019 07:07:24 +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 4C1542EFB4 for ; Thu, 31 Jan 2019 07:07:24 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 31E076EBDC; Thu, 31 Jan 2019 07:07:01 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by gabe.freedesktop.org (Postfix) with ESMTPS id 225016EBDD; Thu, 31 Jan 2019 07:06:56 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 30 Jan 2019 23:06:55 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,543,1539673200"; d="scan'208";a="114128437" Received: from mint-dev.iind.intel.com ([10.223.25.164]) by orsmga008.jf.intel.com with ESMTP; 30 Jan 2019 23:06:53 -0800 From: Ramalingam C To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, daniel.vetter@ffwll.ch, tomas.winkler@intel.com, uma.shankar@intel.com Date: Thu, 31 Jan 2019 12:29:40 +0530 Message-Id: <1548917996-28081-25-git-send-email-ramalingam.c@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> References: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v10 24/40] misc/mei/hdcp: Define ME FW interface for HDCP2.2 X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP Defines the HDCP specific ME FW interfaces such as Request CMDs, payload structure for CMDs and their response status codes. This patch defines payload size(Excluding the Header)for each WIRED HDCP2.2 CMDs. v2: Rebased. v3: Extra comments are removed. v4: %s/\/\*\*/\/\* v5: Extra lines are removed. v6: Remove redundant text from the License header %s/LPRIME_HALF/V_PRIME_HALF %s/uintxx_t/uxx v7: Extra taps removed. Signed-off-by: Ramalingam C Reviewed-by: Uma Shankar --- drivers/misc/mei/hdcp/mei_hdcp.h | 366 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 366 insertions(+) create mode 100644 drivers/misc/mei/hdcp/mei_hdcp.h diff --git a/drivers/misc/mei/hdcp/mei_hdcp.h b/drivers/misc/mei/hdcp/mei_hdcp.h new file mode 100644 index 000000000000..582a7e27ae29 --- /dev/null +++ b/drivers/misc/mei/hdcp/mei_hdcp.h @@ -0,0 +1,366 @@ +/* SPDX-License-Identifier: (GPL-2.0+) */ +/* + * Copyright © 2017-2018 Intel Corporation + * + * Authors: + * Ramalingam C + */ + +#ifndef __MEI_HDCP_H__ +#define __MEI_HDCP_H__ + +#include + +/* me_hdcp_status: Enumeration of all HDCP Status Codes */ +enum me_hdcp_status { + ME_HDCP_STATUS_SUCCESS = 0x0000, + + /* WiDi Generic Status Codes */ + ME_HDCP_STATUS_INTERNAL_ERROR = 0x1000, + ME_HDCP_STATUS_UNKNOWN_ERROR = 0x1001, + ME_HDCP_STATUS_INCORRECT_API_VERSION = 0x1002, + ME_HDCP_STATUS_INVALID_FUNCTION = 0x1003, + ME_HDCP_STATUS_INVALID_BUFFER_LENGTH = 0x1004, + ME_HDCP_STATUS_INVALID_PARAMS = 0x1005, + ME_HDCP_STATUS_AUTHENTICATION_FAILED = 0x1006, + + /* WiDi Status Codes */ + ME_HDCP_INVALID_SESSION_STATE = 0x6000, + ME_HDCP_SRM_FRAGMENT_UNEXPECTED = 0x6001, + ME_HDCP_SRM_INVALID_LENGTH = 0x6002, + ME_HDCP_SRM_FRAGMENT_OFFSET_INVALID = 0x6003, + ME_HDCP_SRM_VERIFICATION_FAILED = 0x6004, + ME_HDCP_SRM_VERSION_TOO_OLD = 0x6005, + ME_HDCP_RX_CERT_VERIFICATION_FAILED = 0x6006, + ME_HDCP_RX_REVOKED = 0x6007, + ME_HDCP_H_VERIFICATION_FAILED = 0x6008, + ME_HDCP_REPEATER_CHECK_UNEXPECTED = 0x6009, + ME_HDCP_TOPOLOGY_MAX_EXCEEDED = 0x600A, + ME_HDCP_V_VERIFICATION_FAILED = 0x600B, + ME_HDCP_L_VERIFICATION_FAILED = 0x600C, + ME_HDCP_STREAM_KEY_ALLOC_FAILED = 0x600D, + ME_HDCP_BASE_KEY_RESET_FAILED = 0x600E, + ME_HDCP_NONCE_GENERATION_FAILED = 0x600F, + ME_HDCP_STATUS_INVALID_E_KEY_STATE = 0x6010, + ME_HDCP_STATUS_INVALID_CS_ICV = 0x6011, + ME_HDCP_STATUS_INVALID_KB_KEY_STATE = 0x6012, + ME_HDCP_STATUS_INVALID_PAVP_MODE_ICV = 0x6013, + ME_HDCP_STATUS_INVALID_PAVP_MODE = 0x6014, + ME_HDCP_STATUS_LC_MAX_ATTEMPTS = 0x6015, + + /* New status for HDCP 2.1 */ + ME_HDCP_STATUS_MISMATCH_IN_M = 0x6016, + + /* New status code for HDCP 2.2 Rx */ + ME_HDCP_STATUS_RX_PROV_NOT_ALLOWED = 0x6017, + ME_HDCP_STATUS_RX_PROV_WRONG_SUBJECT = 0x6018, + ME_HDCP_RX_NEEDS_PROVISIONING = 0x6019, + ME_HDCP_BKSV_ICV_AUTH_FAILED = 0x6020, + ME_HDCP_STATUS_INVALID_STREAM_ID = 0x6021, + ME_HDCP_STATUS_CHAIN_NOT_INITIALIZED = 0x6022, + ME_HDCP_FAIL_NOT_EXPECTED = 0x6023, + ME_HDCP_FAIL_HDCP_OFF = 0x6024, + ME_HDCP_FAIL_INVALID_PAVP_MEMORY_MODE = 0x6025, + ME_HDCP_FAIL_AES_ECB_FAILURE = 0x6026, + ME_HDCP_FEATURE_NOT_SUPPORTED = 0x6027, + ME_HDCP_DMA_READ_ERROR = 0x6028, + ME_HDCP_DMA_WRITE_ERROR = 0x6029, + ME_HDCP_FAIL_INVALID_PACKET_SIZE = 0x6030, + ME_HDCP_H264_PARSING_ERROR = 0x6031, + ME_HDCP_HDCP2_ERRATA_VIDEO_VIOLATION = 0x6032, + ME_HDCP_HDCP2_ERRATA_AUDIO_VIOLATION = 0x6033, + ME_HDCP_TX_ACTIVE_ERROR = 0x6034, + ME_HDCP_MODE_CHANGE_ERROR = 0x6035, + ME_HDCP_STREAM_TYPE_ERROR = 0x6036, + ME_HDCP_STREAM_MANAGE_NOT_POSSIBLE = 0x6037, + + ME_HDCP_STATUS_PORT_INVALID_COMMAND = 0x6038, + ME_HDCP_STATUS_UNSUPPORTED_PROTOCOL = 0x6039, + ME_HDCP_STATUS_INVALID_PORT_INDEX = 0x603a, + ME_HDCP_STATUS_TX_AUTH_NEEDED = 0x603b, + ME_HDCP_STATUS_NOT_INTEGRATED_PORT = 0x603c, + ME_HDCP_STATUS_SESSION_MAX_REACHED = 0x603d, + + /* hdcp capable bit is not set in rx_caps(error is unique to DP) */ + ME_HDCP_STATUS_NOT_HDCP_CAPABLE = 0x6041, + + ME_HDCP_STATUS_INVALID_STREAM_COUNT = 0x6042, +}; + +#define HDCP_API_VERSION 0x00010000 + +#define HDCP_M_LEN 16 +#define HDCP_KH_LEN 16 + +/* Payload Buffer size(Excluding Header) for CMDs and corresponding response */ +/* Wired_Tx_AKE */ +#define WIRED_CMD_BUF_LEN_INITIATE_HDCP2_SESSION_IN (4 + 1) +#define WIRED_CMD_BUF_LEN_INITIATE_HDCP2_SESSION_OUT (4 + 8 + 3) + +#define WIRED_CMD_BUF_LEN_VERIFY_RECEIVER_CERT_IN (4 + 522 + 8 + 3) +#define WIRED_CMD_BUF_LEN_VERIFY_RECEIVER_CERT_MIN_OUT (4 + 1 + 3 + 16 + 16) +#define WIRED_CMD_BUF_LEN_VERIFY_RECEIVER_CERT_MAX_OUT (4 + 1 + 3 + 128) + +#define WIRED_CMD_BUF_LEN_AKE_SEND_HPRIME_IN (4 + 32) +#define WIRED_CMD_BUF_LEN_AKE_SEND_HPRIME_OUT (4) + +#define WIRED_CMD_BUF_LEN_SEND_PAIRING_INFO_IN (4 + 16) +#define WIRED_CMD_BUF_LEN_SEND_PAIRING_INFO_OUT (4) + +#define WIRED_CMD_BUF_LEN_CLOSE_SESSION_IN (4) +#define WIRED_CMD_BUF_LEN_CLOSE_SESSION_OUT (4) + +/* Wired_Tx_LC */ +#define WIRED_CMD_BUF_LEN_INIT_LOCALITY_CHECK_IN (4) +#define WIRED_CMD_BUF_LEN_INIT_LOCALITY_CHECK_OUT (4 + 8) + +#define WIRED_CMD_BUF_LEN_VALIDATE_LOCALITY_IN (4 + 32) +#define WIRED_CMD_BUF_LEN_VALIDATE_LOCALITY_OUT (4) + +/* Wired_Tx_SKE */ +#define WIRED_CMD_BUF_LEN_GET_SESSION_KEY_IN (4) +#define WIRED_CMD_BUF_LEN_GET_SESSION_KEY_OUT (4 + 16 + 8) + +/* Wired_Tx_SKE */ +#define WIRED_CMD_BUF_LEN_ENABLE_AUTH_IN (4 + 1) +#define WIRED_CMD_BUF_LEN_ENABLE_AUTH_OUT (4) + +/* Wired_Tx_Repeater */ +#define WIRED_CMD_BUF_LEN_VERIFY_REPEATER_IN (4 + 2 + 3 + 16 + 155) +#define WIRED_CMD_BUF_LEN_VERIFY_REPEATER_OUT (4 + 1 + 16) + +#define WIRED_CMD_BUF_LEN_REPEATER_AUTH_STREAM_REQ_MIN_IN (4 + 3 + \ + 32 + 2 + 2) + +#define WIRED_CMD_BUF_LEN_REPEATER_AUTH_STREAM_REQ_OUT (4) + +/* hdcp_command_id: Enumeration of all WIRED HDCP Command IDs */ +enum hdcp_command_id { + _WIDI_COMMAND_BASE = 0x00030000, + WIDI_INITIATE_HDCP2_SESSION = _WIDI_COMMAND_BASE, + HDCP_GET_SRM_STATUS, + HDCP_SEND_SRM_FRAGMENT, + + /* The wired HDCP Tx commands */ + _WIRED_COMMAND_BASE = 0x00031000, + WIRED_INITIATE_HDCP2_SESSION = _WIRED_COMMAND_BASE, + WIRED_VERIFY_RECEIVER_CERT, + WIRED_AKE_SEND_HPRIME, + WIRED_AKE_SEND_PAIRING_INFO, + WIRED_INIT_LOCALITY_CHECK, + WIRED_VALIDATE_LOCALITY, + WIRED_GET_SESSION_KEY, + WIRED_ENABLE_AUTH, + WIRED_VERIFY_REPEATER, + WIRED_REPEATER_AUTH_STREAM_REQ, + WIRED_CLOSE_SESSION, + + _WIRED_COMMANDS_COUNT, +}; + +union encrypted_buff { + u8 e_kpub_km[HDCP_2_2_E_KPUB_KM_LEN]; + u8 e_kh_km_m[HDCP_2_2_E_KH_KM_M_LEN]; + struct { + u8 e_kh_km[HDCP_KH_LEN]; + u8 m[HDCP_M_LEN]; + } __packed; +}; + +/* HDCP HECI message header. All header values are little endian. */ +struct hdcp_cmd_header { + u32 api_version; + u32 command_id; + enum me_hdcp_status status; + /* Length of the HECI message (excluding the header) */ + u32 buffer_len; +} __packed; + +/* Empty command request or response. No data follows the header. */ +struct hdcp_cmd_no_data { + struct hdcp_cmd_header header; +} __packed; + +/* Uniquely identifies the hdcp port being addressed for a given command. */ +struct hdcp_port_id { + u8 integrated_port_type; + u8 physical_port; + u16 reserved; +} __packed; + +/* + * Data structures for integrated wired HDCP2 Tx in + * support of the AKE protocol + */ +/* HECI struct for integrated wired HDCP Tx session initiation. */ +struct wired_cmd_initiate_hdcp2_session_in { + struct hdcp_cmd_header header; + struct hdcp_port_id port; + u8 protocol; /* for HDMI vs DP */ +} __packed; + +struct wired_cmd_initiate_hdcp2_session_out { + struct hdcp_cmd_header header; + struct hdcp_port_id port; + u8 r_tx[HDCP_2_2_RTX_LEN]; + struct hdcp2_tx_caps tx_caps; +} __packed; + +/* HECI struct for ending an integrated wired HDCP Tx session. */ +struct wired_cmd_close_session_in { + struct hdcp_cmd_header header; + struct hdcp_port_id port; +} __packed; + +struct wired_cmd_close_session_out { + struct hdcp_cmd_header header; + struct hdcp_port_id port; +} __packed; + +/* HECI struct for integrated wired HDCP Tx Rx Cert verification. */ +struct wired_cmd_verify_receiver_cert_in { + struct hdcp_cmd_header header; + struct hdcp_port_id port; + struct hdcp2_cert_rx cert_rx; + u8 r_rx[HDCP_2_2_RRX_LEN]; + u8 rx_caps[HDCP_2_2_RXCAPS_LEN]; +} __packed; + +struct wired_cmd_verify_receiver_cert_out { + struct hdcp_cmd_header header; + struct hdcp_port_id port; + u8 km_stored; + u8 reserved[3]; + union encrypted_buff ekm_buff; +} __packed; + +/* HECI struct for verification of Rx's Hprime in a HDCP Tx session */ +struct wired_cmd_ake_send_hprime_in { + struct hdcp_cmd_header header; + struct hdcp_port_id port; + u8 h_prime[HDCP_2_2_H_PRIME_LEN]; +} __packed; + +struct wired_cmd_ake_send_hprime_out { + struct hdcp_cmd_header header; + struct hdcp_port_id port; +} __packed; + +/* + * HECI struct for sending in AKE pairing data generated by the Rx in an + * integrated wired HDCP Tx session. + */ +struct wired_cmd_ake_send_pairing_info_in { + struct hdcp_cmd_header header; + struct hdcp_port_id port; + u8 e_kh_km[HDCP_2_2_E_KH_KM_LEN]; +} __packed; + +struct wired_cmd_ake_send_pairing_info_out { + struct hdcp_cmd_header header; + struct hdcp_port_id port; +} __packed; + +/* Data structures for integrated wired HDCP2 Tx in support of the LC protocol*/ +/* + * HECI struct for initiating locality check with an + * integrated wired HDCP Tx session. + */ +struct wired_cmd_init_locality_check_in { + struct hdcp_cmd_header header; + struct hdcp_port_id port; +} __packed; + +struct wired_cmd_init_locality_check_out { + struct hdcp_cmd_header header; + struct hdcp_port_id port; + u8 r_n[HDCP_2_2_RN_LEN]; +} __packed; + +/* + * HECI struct for validating an Rx's LPrime value in an + * integrated wired HDCP Tx session. + */ +struct wired_cmd_validate_locality_in { + struct hdcp_cmd_header header; + struct hdcp_port_id port; + u8 l_prime[HDCP_2_2_L_PRIME_LEN]; +} __packed; + +struct wired_cmd_validate_locality_out { + struct hdcp_cmd_header header; + struct hdcp_port_id port; +} __packed; + +/* + * Data structures for integrated wired HDCP2 Tx in support of the + * SKE protocol + */ +/* HECI struct for creating session key */ +struct wired_cmd_get_session_key_in { + struct hdcp_cmd_header header; + struct hdcp_port_id port; +} __packed; + +struct wired_cmd_get_session_key_out { + struct hdcp_cmd_header header; + struct hdcp_port_id port; + u8 e_dkey_ks[HDCP_2_2_E_DKEY_KS_LEN]; + u8 r_iv[HDCP_2_2_RIV_LEN]; +} __packed; + +/* HECI struct for the Tx enable authentication command */ +struct wired_cmd_enable_auth_in { + struct hdcp_cmd_header header; + struct hdcp_port_id port; + u8 stream_type; +} __packed; + +struct wired_cmd_enable_auth_out { + struct hdcp_cmd_header header; + struct hdcp_port_id port; +} __packed; + +/* + * Data structures for integrated wired HDCP2 Tx in support of + * the repeater protocols + */ +/* + * HECI struct for verifying the downstream repeater's HDCP topology in an + * integrated wired HDCP Tx session. + */ +struct wired_cmd_verify_repeater_in { + struct hdcp_cmd_header header; + struct hdcp_port_id port; + u8 rx_info[HDCP_2_2_RXINFO_LEN]; + u8 seq_num_v[HDCP_2_2_SEQ_NUM_LEN]; + u8 v_prime[HDCP_2_2_V_PRIME_HALF_LEN]; + u8 receiver_ids[HDCP_2_2_RECEIVER_IDS_MAX_LEN]; +} __packed; + +struct wired_cmd_verify_repeater_out { + struct hdcp_cmd_header header; + struct hdcp_port_id port; + u8 content_type_supported; + u8 v[HDCP_2_2_V_PRIME_HALF_LEN]; +} __packed; + +/* + * HECI struct in support of stream management in an + * integrated wired HDCP Tx session. + */ +struct wired_cmd_repeater_auth_stream_req_in { + struct hdcp_cmd_header header; + struct hdcp_port_id port; + u8 seq_num_m[HDCP_2_2_SEQ_NUM_LEN]; + u8 m_prime[HDCP_2_2_MPRIME_LEN]; + u16 k; + struct hdcp2_streamid_type streams[1]; +} __packed; + +struct wired_cmd_repeater_auth_stream_req_out { + struct hdcp_cmd_header header; + struct hdcp_port_id port; +} __packed; + +#endif /* __MEI_HDCP_H__ */ From patchwork Thu Jan 31 06:59:41 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ramalingam C X-Patchwork-Id: 10789801 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 40A3B1390 for ; Thu, 31 Jan 2019 07:07:23 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 3C0F72EFB4 for ; Thu, 31 Jan 2019 07:07:23 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 2F838300F7; Thu, 31 Jan 2019 07:07:23 +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 AC5E12EFB4 for ; Thu, 31 Jan 2019 07:07:22 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id DEE486EBDD; Thu, 31 Jan 2019 07:07:00 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by gabe.freedesktop.org (Postfix) with ESMTPS id AB8A86EBE0; Thu, 31 Jan 2019 07:06:58 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 30 Jan 2019 23:06:58 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,543,1539673200"; d="scan'208";a="114128452" Received: from mint-dev.iind.intel.com ([10.223.25.164]) by orsmga008.jf.intel.com with ESMTP; 30 Jan 2019 23:06:56 -0800 From: Ramalingam C To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, daniel.vetter@ffwll.ch, tomas.winkler@intel.com, uma.shankar@intel.com Date: Thu, 31 Jan 2019 12:29:41 +0530 Message-Id: <1548917996-28081-26-git-send-email-ramalingam.c@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> References: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> Subject: [Intel-gfx] [PATCH v10 25/40] misc/mei/hdcp: Initiate Wired HDCP2.2 Tx Session X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP Request ME FW to start the HDCP2.2 session for an intel port. Prepares payloads for command WIRED_INITIATE_HDCP2_SESSION and sends to ME FW. On Success, ME FW will start a HDCP2.2 session for the port and provides the content for HDCP2.2 AKE_Init message. v2: Rebased. v3: cldev is add as a separate parameter [Tomas] Redundant comment and typecast are removed [Tomas] v4: %zd is used for size [Alexander] %s/return -1/return -EIO [Alexander] Spellings in commit msg is fixed [Uma] v5: Rebased. v6: Collected the rb-ed by. Realigning the patches in the series. v7: Adjust to the new mei interface. Fix for kdoc. v8: K-Doc Addition. memcpy for const length. Signed-off-by: Ramalingam C Reviewed-by: Uma Shankar --- drivers/misc/mei/hdcp/mei_hdcp.c | 82 ++++++++++++++++++++++++++++++++++++++++ drivers/misc/mei/hdcp/mei_hdcp.h | 28 ++++++++++++++ 2 files changed, 110 insertions(+) diff --git a/drivers/misc/mei/hdcp/mei_hdcp.c b/drivers/misc/mei/hdcp/mei_hdcp.c index ca5010ad7dd7..534d29c8ee86 100644 --- a/drivers/misc/mei/hdcp/mei_hdcp.c +++ b/drivers/misc/mei/hdcp/mei_hdcp.c @@ -23,6 +23,88 @@ #include #include #include +#include +#include +#include + +#include "mei_hdcp.h" + +/** + * mei_initiate_hdcp2_session() - Initiate a Wired HDCP2.2 Tx Session in ME FW + * @dev: device corresponding to the mei_cl_device + * @hdcp_data: Intel HW specific hdcp data + * @ake_data: AKE_Init msg output. + * + * Return: 0 on Success, <0 on Failure. + */ +static int +mei_initiate_hdcp2_session(struct device *dev, struct hdcp_port_data *data, + struct hdcp2_ake_init *ake_data) +{ + struct wired_cmd_initiate_hdcp2_session_in session_init_in = { { 0 } }; + struct wired_cmd_initiate_hdcp2_session_out + session_init_out = { { 0 } }; + struct mei_cl_device *cldev; + ssize_t byte; + + if (!dev || !data || !ake_data) + return -EINVAL; + + cldev = to_mei_cl_device(dev); + + session_init_in.header.api_version = HDCP_API_VERSION; + session_init_in.header.command_id = WIRED_INITIATE_HDCP2_SESSION; + session_init_in.header.status = ME_HDCP_STATUS_SUCCESS; + session_init_in.header.buffer_len = + WIRED_CMD_BUF_LEN_INITIATE_HDCP2_SESSION_IN; + + session_init_in.port.integrated_port_type = data->port_type; + session_init_in.port.physical_port = (u8)GET_MEI_DDI_INDEX(data->port); + session_init_in.protocol = data->protocol; + + byte = mei_cldev_send(cldev, (u8 *)&session_init_in, + sizeof(session_init_in)); + if (byte < 0) { + dev_dbg(dev, "mei_cldev_send failed. %zd\n", byte); + return byte; + } + + byte = mei_cldev_recv(cldev, (u8 *)&session_init_out, + sizeof(session_init_out)); + if (byte < 0) { + dev_dbg(dev, "mei_cldev_recv failed. %zd\n", byte); + return byte; + } + + if (session_init_out.header.status != ME_HDCP_STATUS_SUCCESS) { + dev_dbg(dev, "ME cmd 0x%08X Failed. Status: 0x%X\n", + WIRED_INITIATE_HDCP2_SESSION, + session_init_out.header.status); + return -EIO; + } + + ake_data->msg_id = HDCP_2_2_AKE_INIT; + ake_data->tx_caps = session_init_out.tx_caps; + memcpy(ake_data->r_tx, session_init_out.r_tx, HDCP_2_2_RTX_LEN); + + return 0; +} + +static __attribute__((unused)) +struct i915_hdcp_component_ops mei_hdcp_ops = { + .owner = THIS_MODULE, + .initiate_hdcp2_session = mei_initiate_hdcp2_session, + .verify_receiver_cert_prepare_km = NULL, + .verify_hprime = NULL, + .store_pairing_info = NULL, + .initiate_locality_check = NULL, + .verify_lprime = NULL, + .get_session_key = NULL, + .repeater_check_flow_prepare_ack = NULL, + .verify_mprime = NULL, + .enable_hdcp_authentication = NULL, + .close_hdcp_session = NULL, +}; static int mei_hdcp_probe(struct mei_cl_device *cldev, const struct mei_cl_device_id *id) diff --git a/drivers/misc/mei/hdcp/mei_hdcp.h b/drivers/misc/mei/hdcp/mei_hdcp.h index 582a7e27ae29..f831db3cbd54 100644 --- a/drivers/misc/mei/hdcp/mei_hdcp.h +++ b/drivers/misc/mei/hdcp/mei_hdcp.h @@ -363,4 +363,32 @@ struct wired_cmd_repeater_auth_stream_req_out { struct hdcp_port_id port; } __packed; +enum mei_hdcp_ddi { + MEI_DDI_INVALID_PORT = 0x0, + + MEI_DDI_B = 1, + MEI_DDI_C, + MEI_DDI_D, + MEI_DDI_E, + MEI_DDI_F, + MEI_DDI_A = 7, + MEI_DDI_RANGE_END = MEI_DDI_A, +}; + +enum i915_port { + PORT_NONE = -1, + + PORT_A = 0, + PORT_B, + PORT_C, + PORT_D, + PORT_E, + PORT_F, + I915_MAX_PORTS, +}; + +#define GET_MEI_DDI_INDEX(p) ({ \ + enum i915_port __p = (enum i915_port)(p); \ + __p == PORT_A ? MEI_DDI_A : (enum mei_hdcp_ddi)__p; \ +}) #endif /* __MEI_HDCP_H__ */ From patchwork Thu Jan 31 06:59:42 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ramalingam C X-Patchwork-Id: 10789813 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 3E8E613BF for ; Thu, 31 Jan 2019 07:07:32 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 3B1822EFB4 for ; Thu, 31 Jan 2019 07:07:32 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 2FA26300F7; Thu, 31 Jan 2019 07:07:32 +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 D2B542EFB4 for ; Thu, 31 Jan 2019 07:07:31 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 6DB6B6EBDB; Thu, 31 Jan 2019 07:07:04 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by gabe.freedesktop.org (Postfix) with ESMTPS id 3D5576EBE0; Thu, 31 Jan 2019 07:07:01 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 30 Jan 2019 23:07:01 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,543,1539673200"; d="scan'208";a="114128469" Received: from mint-dev.iind.intel.com ([10.223.25.164]) by orsmga008.jf.intel.com with ESMTP; 30 Jan 2019 23:06:58 -0800 From: Ramalingam C To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, daniel.vetter@ffwll.ch, tomas.winkler@intel.com, uma.shankar@intel.com Date: Thu, 31 Jan 2019 12:29:42 +0530 Message-Id: <1548917996-28081-27-git-send-email-ramalingam.c@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> References: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> Subject: [Intel-gfx] [PATCH v10 26/40] misc/mei/hdcp: Verify Receiver Cert and prepare km X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP Requests for verification for receiver certification and also the preparation for next AKE auth message with km. On Success ME FW validate the HDCP2.2 receivers certificate and do the revocation check on the receiver ID. AKE_Stored_Km will be prepared if the receiver is already paired, else AKE_No_Stored_Km will be prepared. Here AKE_Stored_Km and AKE_No_Stored_Km are HDCP2.2 protocol msgs. v2: Rebased. v3: cldev is passed as first parameter [Tomas] Redundant comments and cast are removed [Tomas] v4: %zd is used for ssize_t [Alexander] %s/return -1/return -EIO [Alexander] v5: Rebased. v6: Collected the Rb-ed by. Rebasing. v7: Adjust to the new mei interface. Fix for Kdoc. v8: K-Doc Addition. [Tomas] memcpy for const length. Signed-off-by: Ramalingam C Reviewed-by: Uma Shankar --- drivers/misc/mei/hdcp/mei_hdcp.c | 81 +++++++++++++++++++++++++++++++++++++++- 1 file changed, 80 insertions(+), 1 deletion(-) diff --git a/drivers/misc/mei/hdcp/mei_hdcp.c b/drivers/misc/mei/hdcp/mei_hdcp.c index 534d29c8ee86..24665fff640d 100644 --- a/drivers/misc/mei/hdcp/mei_hdcp.c +++ b/drivers/misc/mei/hdcp/mei_hdcp.c @@ -90,11 +90,90 @@ mei_initiate_hdcp2_session(struct device *dev, struct hdcp_port_data *data, return 0; } +/** + * mei_verify_receiver_cert_prepare_km() - Verify the Receiver Certificate + * AKE_Send_Cert and prepare AKE_Stored_Km/AKE_No_Stored_Km + * @dev: device corresponding to the mei_cl_device + * @hdcp_data: Intel HW specific hdcp data + * @rx_cert: AKE_Send_Cert for verification + * @km_stored: Pairing status flag output + * @ek_pub_km: AKE_Stored_Km/AKE_No_Stored_Km output msg + * @msg_sz : size of AKE_XXXXX_Km output msg + * + * Return: 0 on Success, <0 on Failure + */ +static int +mei_verify_receiver_cert_prepare_km(struct device *dev, + struct hdcp_port_data *data, + struct hdcp2_ake_send_cert *rx_cert, + bool *km_stored, + struct hdcp2_ake_no_stored_km *ek_pub_km, + size_t *msg_sz) +{ + struct wired_cmd_verify_receiver_cert_in verify_rxcert_in = { { 0 } }; + struct wired_cmd_verify_receiver_cert_out verify_rxcert_out = { { 0 } }; + struct mei_cl_device *cldev; + ssize_t byte; + + if (!dev || !data || !rx_cert || !km_stored || !ek_pub_km || !msg_sz) + return -EINVAL; + + cldev = to_mei_cl_device(dev); + + verify_rxcert_in.header.api_version = HDCP_API_VERSION; + verify_rxcert_in.header.command_id = WIRED_VERIFY_RECEIVER_CERT; + verify_rxcert_in.header.status = ME_HDCP_STATUS_SUCCESS; + verify_rxcert_in.header.buffer_len = + WIRED_CMD_BUF_LEN_VERIFY_RECEIVER_CERT_IN; + + verify_rxcert_in.port.integrated_port_type = data->port_type; + verify_rxcert_in.port.physical_port = (u8)GET_MEI_DDI_INDEX(data->port); + + verify_rxcert_in.cert_rx = rx_cert->cert_rx; + memcpy(verify_rxcert_in.r_rx, &rx_cert->r_rx, HDCP_2_2_RRX_LEN); + memcpy(verify_rxcert_in.rx_caps, rx_cert->rx_caps, HDCP_2_2_RXCAPS_LEN); + + byte = mei_cldev_send(cldev, (u8 *)&verify_rxcert_in, + sizeof(verify_rxcert_in)); + if (byte < 0) { + dev_dbg(dev, "mei_cldev_send failed: %zd\n", byte); + return byte; + } + + byte = mei_cldev_recv(cldev, (u8 *)&verify_rxcert_out, + sizeof(verify_rxcert_out)); + if (byte < 0) { + dev_dbg(dev, "mei_cldev_recv failed: %zd\n", byte); + return byte; + } + + if (verify_rxcert_out.header.status != ME_HDCP_STATUS_SUCCESS) { + dev_dbg(dev, "ME cmd 0x%08X Failed. Status: 0x%X\n", + WIRED_VERIFY_RECEIVER_CERT, + verify_rxcert_out.header.status); + return -EIO; + } + + *km_stored = verify_rxcert_out.km_stored; + if (verify_rxcert_out.km_stored) { + ek_pub_km->msg_id = HDCP_2_2_AKE_STORED_KM; + *msg_sz = sizeof(struct hdcp2_ake_stored_km); + } else { + ek_pub_km->msg_id = HDCP_2_2_AKE_NO_STORED_KM; + *msg_sz = sizeof(struct hdcp2_ake_no_stored_km); + } + + memcpy(ek_pub_km->e_kpub_km, &verify_rxcert_out.ekm_buff, + sizeof(verify_rxcert_out.ekm_buff)); + + return 0; +} + static __attribute__((unused)) struct i915_hdcp_component_ops mei_hdcp_ops = { .owner = THIS_MODULE, .initiate_hdcp2_session = mei_initiate_hdcp2_session, - .verify_receiver_cert_prepare_km = NULL, + .verify_receiver_cert_prepare_km = mei_verify_receiver_cert_prepare_km, .verify_hprime = NULL, .store_pairing_info = NULL, .initiate_locality_check = NULL, From patchwork Thu Jan 31 06:59:43 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ramalingam C X-Patchwork-Id: 10789811 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 BB26A13BF for ; Thu, 31 Jan 2019 07:07:30 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B89AE2EFB4 for ; Thu, 31 Jan 2019 07:07:30 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id AC7CD300F7; Thu, 31 Jan 2019 07:07:30 +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 553AF2EFB4 for ; Thu, 31 Jan 2019 07:07:30 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id DB5046EBE4; Thu, 31 Jan 2019 07:07:05 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by gabe.freedesktop.org (Postfix) with ESMTPS id C2AAD6EBE2; Thu, 31 Jan 2019 07:07:03 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 30 Jan 2019 23:07:03 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,543,1539673200"; d="scan'208";a="114128489" Received: from mint-dev.iind.intel.com ([10.223.25.164]) by orsmga008.jf.intel.com with ESMTP; 30 Jan 2019 23:07:01 -0800 From: Ramalingam C To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, daniel.vetter@ffwll.ch, tomas.winkler@intel.com, uma.shankar@intel.com Date: Thu, 31 Jan 2019 12:29:43 +0530 Message-Id: <1548917996-28081-28-git-send-email-ramalingam.c@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> References: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> Subject: [Intel-gfx] [PATCH v10 27/40] misc/mei/hdcp: Verify H_prime X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP Requests for the verification of AKE_Send_H_prime. ME will calculate the H and comparing it with received H_Prime. The result will be returned as status. Here AKE_Send_H_prime is a HDCP2.2 Authentication msg. v2: Rebased. v3: cldev is passed as first parameter [Tomas] Redundant comments and cast are removed [Tomas] v4: %zd for ssize_t [Alexander] %s/return -1/return -EIO [Alexander] Styles and typos fixed [Uma] v5: Rebased. v6: Collected the Rb-ed by. Rebasing. v7: Adjust to the new mei interface. Fix for Kdoc. v8: K-Doc Addition [Tomas] memcpy for const length. Signed-off-by: Ramalingam C Reviewed-by: Uma Shankar --- drivers/misc/mei/hdcp/mei_hdcp.c | 57 +++++++++++++++++++++++++++++++++++++++- 1 file changed, 56 insertions(+), 1 deletion(-) diff --git a/drivers/misc/mei/hdcp/mei_hdcp.c b/drivers/misc/mei/hdcp/mei_hdcp.c index 24665fff640d..74219e1487d3 100644 --- a/drivers/misc/mei/hdcp/mei_hdcp.c +++ b/drivers/misc/mei/hdcp/mei_hdcp.c @@ -169,12 +169,67 @@ mei_verify_receiver_cert_prepare_km(struct device *dev, return 0; } +/** + * mei_verify_hprime() - Verify AKE_Send_H_prime at ME FW. + * @dev: device corresponding to the mei_cl_device + * @hdcp_data: Intel HW specific hdcp data + * @rx_hprime: AKE_Send_H_prime msg for ME FW verification + * + * Return: 0 on Success, <0 on Failure + */ +static int mei_verify_hprime(struct device *dev, struct hdcp_port_data *data, + struct hdcp2_ake_send_hprime *rx_hprime) +{ + struct wired_cmd_ake_send_hprime_in send_hprime_in = { { 0 } }; + struct wired_cmd_ake_send_hprime_out send_hprime_out = { { 0 } }; + struct mei_cl_device *cldev; + ssize_t byte; + + if (!dev || !data || !rx_hprime) + return -EINVAL; + + cldev = to_mei_cl_device(dev); + + send_hprime_in.header.api_version = HDCP_API_VERSION; + send_hprime_in.header.command_id = WIRED_AKE_SEND_HPRIME; + send_hprime_in.header.status = ME_HDCP_STATUS_SUCCESS; + send_hprime_in.header.buffer_len = WIRED_CMD_BUF_LEN_AKE_SEND_HPRIME_IN; + + send_hprime_in.port.integrated_port_type = data->port_type; + send_hprime_in.port.physical_port = (u8)GET_MEI_DDI_INDEX(data->port); + + memcpy(send_hprime_in.h_prime, rx_hprime->h_prime, + HDCP_2_2_H_PRIME_LEN); + + byte = mei_cldev_send(cldev, (u8 *)&send_hprime_in, + sizeof(send_hprime_in)); + if (byte < 0) { + dev_dbg(dev, "mei_cldev_send failed. %zd\n", byte); + return byte; + } + + byte = mei_cldev_recv(cldev, (u8 *)&send_hprime_out, + sizeof(send_hprime_out)); + if (byte < 0) { + dev_dbg(dev, "mei_cldev_recv failed. %zd\n", byte); + return byte; + } + + if (send_hprime_out.header.status != ME_HDCP_STATUS_SUCCESS) { + dev_dbg(dev, "ME cmd 0x%08X Failed. Status: 0x%X\n", + WIRED_AKE_SEND_HPRIME, send_hprime_out.header.status); + return -EIO; + } + + return 0; +} + static __attribute__((unused)) struct i915_hdcp_component_ops mei_hdcp_ops = { .owner = THIS_MODULE, .initiate_hdcp2_session = mei_initiate_hdcp2_session, .verify_receiver_cert_prepare_km = mei_verify_receiver_cert_prepare_km, - .verify_hprime = NULL, + .verify_hprime = mei_verify_hprime, .store_pairing_info = NULL, .initiate_locality_check = NULL, .verify_lprime = NULL, From patchwork Thu Jan 31 06:59:44 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ramalingam C X-Patchwork-Id: 10789819 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 5FB3713BF for ; Thu, 31 Jan 2019 07:07:37 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 5B1082EFB4 for ; Thu, 31 Jan 2019 07:07:37 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 4F4EB300F7; Thu, 31 Jan 2019 07:07:37 +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 09EF42EFB4 for ; Thu, 31 Jan 2019 07:07:37 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 186246EBE2; Thu, 31 Jan 2019 07:07:13 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by gabe.freedesktop.org (Postfix) with ESMTPS id 990286EBE5; Thu, 31 Jan 2019 07:07:06 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 30 Jan 2019 23:07:06 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,543,1539673200"; d="scan'208";a="114128506" Received: from mint-dev.iind.intel.com ([10.223.25.164]) by orsmga008.jf.intel.com with ESMTP; 30 Jan 2019 23:07:04 -0800 From: Ramalingam C To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, daniel.vetter@ffwll.ch, tomas.winkler@intel.com, uma.shankar@intel.com Date: Thu, 31 Jan 2019 12:29:44 +0530 Message-Id: <1548917996-28081-29-git-send-email-ramalingam.c@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> References: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> Subject: [Intel-gfx] [PATCH v10 28/40] misc/mei/hdcp: Store the HDCP Pairing info X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP Provides Pairing info to ME to store. Pairing is a process to fast track the subsequent authentication with the same HDCP sink. On Success, received HDCP pairing info is stored in non-volatile memory of ME. v2: Rebased. v3: cldev is passed as first parameter [Tomas] Redundant comments and cast are removed [Tomas] v4: %zd for ssize_t [Alexander] %s/return -1/return -EIO [Alexander] Style fixed [Uma] v5: Rebased. v6: Collected the Rb-ed by. Rebasing. v7: Adjust to the new mei interface. Fix for Kdoc. v8: K-Doc addition. [Tomas] memcpy for const length. Signed-off-by: Ramalingam C Reviewed-by: Uma Shankar --- drivers/misc/mei/hdcp/mei_hdcp.c | 60 +++++++++++++++++++++++++++++++++++++++- 1 file changed, 59 insertions(+), 1 deletion(-) diff --git a/drivers/misc/mei/hdcp/mei_hdcp.c b/drivers/misc/mei/hdcp/mei_hdcp.c index 74219e1487d3..e8396c723ab0 100644 --- a/drivers/misc/mei/hdcp/mei_hdcp.c +++ b/drivers/misc/mei/hdcp/mei_hdcp.c @@ -224,13 +224,71 @@ static int mei_verify_hprime(struct device *dev, struct hdcp_port_data *data, return 0; } +/** + * mei_store_pairing_info() - Store pairing info received at ME FW + * @dev: device corresponding to the mei_cl_device + * @hdcp_data: Intel HW specific hdcp data + * @pairing_info: AKE_Send_Pairing_Info msg input to ME FW + * + * Return: 0 on Success, <0 on Failure + */ +static int +mei_store_pairing_info(struct device *dev, struct hdcp_port_data *data, + struct hdcp2_ake_send_pairing_info *pairing_info) +{ + struct wired_cmd_ake_send_pairing_info_in pairing_info_in = { { 0 } }; + struct wired_cmd_ake_send_pairing_info_out pairing_info_out = { { 0 } }; + struct mei_cl_device *cldev; + ssize_t byte; + + if (!dev || !data || !pairing_info) + return -EINVAL; + + cldev = to_mei_cl_device(dev); + + pairing_info_in.header.api_version = HDCP_API_VERSION; + pairing_info_in.header.command_id = WIRED_AKE_SEND_PAIRING_INFO; + pairing_info_in.header.status = ME_HDCP_STATUS_SUCCESS; + pairing_info_in.header.buffer_len = + WIRED_CMD_BUF_LEN_SEND_PAIRING_INFO_IN; + + pairing_info_in.port.integrated_port_type = data->port_type; + pairing_info_in.port.physical_port = (u8)GET_MEI_DDI_INDEX(data->port); + + memcpy(pairing_info_in.e_kh_km, pairing_info->e_kh_km, + HDCP_2_2_E_KH_KM_LEN); + + byte = mei_cldev_send(cldev, (u8 *)&pairing_info_in, + sizeof(pairing_info_in)); + if (byte < 0) { + dev_dbg(dev, "mei_cldev_send failed. %zd\n", byte); + return byte; + } + + byte = mei_cldev_recv(cldev, (u8 *)&pairing_info_out, + sizeof(pairing_info_out)); + if (byte < 0) { + dev_dbg(dev, "mei_cldev_recv failed. %zd\n", byte); + return byte; + } + + if (pairing_info_out.header.status != ME_HDCP_STATUS_SUCCESS) { + dev_dbg(dev, "ME cmd 0x%08X failed. Status: 0x%X\n", + WIRED_AKE_SEND_PAIRING_INFO, + pairing_info_out.header.status); + return -EIO; + } + + return 0; +} + static __attribute__((unused)) struct i915_hdcp_component_ops mei_hdcp_ops = { .owner = THIS_MODULE, .initiate_hdcp2_session = mei_initiate_hdcp2_session, .verify_receiver_cert_prepare_km = mei_verify_receiver_cert_prepare_km, .verify_hprime = mei_verify_hprime, - .store_pairing_info = NULL, + .store_pairing_info = mei_store_pairing_info, .initiate_locality_check = NULL, .verify_lprime = NULL, .get_session_key = NULL, From patchwork Thu Jan 31 06:59:45 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ramalingam C X-Patchwork-Id: 10789823 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 177A2184E for ; Thu, 31 Jan 2019 07:07:40 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 156AC300F7 for ; Thu, 31 Jan 2019 07:07:40 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 0A20130427; Thu, 31 Jan 2019 07:07:40 +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 92DAF300F7 for ; Thu, 31 Jan 2019 07:07:39 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 90DA76EBE9; Thu, 31 Jan 2019 07:07:14 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by gabe.freedesktop.org (Postfix) with ESMTPS id 2F0696EBE2; Thu, 31 Jan 2019 07:07:09 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 30 Jan 2019 23:07:09 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,543,1539673200"; d="scan'208";a="114128516" Received: from mint-dev.iind.intel.com ([10.223.25.164]) by orsmga008.jf.intel.com with ESMTP; 30 Jan 2019 23:07:06 -0800 From: Ramalingam C To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, daniel.vetter@ffwll.ch, tomas.winkler@intel.com, uma.shankar@intel.com Date: Thu, 31 Jan 2019 12:29:45 +0530 Message-Id: <1548917996-28081-30-git-send-email-ramalingam.c@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> References: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> Subject: [Intel-gfx] [PATCH v10 29/40] misc/mei/hdcp: Initiate Locality check X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP Requests ME to start the second stage of HDCP2.2 authentication, called Locality Check. On Success, ME FW will provide LC_Init message to send to hdcp sink. v2: Rebased. v3: cldev is passed as first parameter [Tomas] Redundant comments and cast are removed [Tomas] v4: %zd used for ssize_t [Alexander] %s/return -1/return -EIO [Alexander] Style fixed [Uma] v5: Rebased. v6: Collected the Rb-ed by. Rebasing. v7: Adjust to the new mei interface. Fix for Kdoc. v8: K-Doc addition. [Tomas] Signed-off-by: Ramalingam C Reviewed-by: Uma Shankar --- drivers/misc/mei/hdcp/mei_hdcp.c | 56 +++++++++++++++++++++++++++++++++++++++- 1 file changed, 55 insertions(+), 1 deletion(-) diff --git a/drivers/misc/mei/hdcp/mei_hdcp.c b/drivers/misc/mei/hdcp/mei_hdcp.c index e8396c723ab0..412a33e29d7d 100644 --- a/drivers/misc/mei/hdcp/mei_hdcp.c +++ b/drivers/misc/mei/hdcp/mei_hdcp.c @@ -282,6 +282,60 @@ mei_store_pairing_info(struct device *dev, struct hdcp_port_data *data, return 0; } +/** + * mei_initiate_locality_check() - Prepare LC_Init + * @dev: device corresponding to the mei_cl_device + * @hdcp_data: Intel HW specific hdcp data + * @lc_init_data: LC_Init msg output + * + * Return: 0 on Success, <0 on Failure + */ +static int +mei_initiate_locality_check(struct device *dev, struct hdcp_port_data *data, + struct hdcp2_lc_init *lc_init_data) +{ + struct wired_cmd_init_locality_check_in lc_init_in = { { 0 } }; + struct wired_cmd_init_locality_check_out lc_init_out = { { 0 } }; + struct mei_cl_device *cldev; + ssize_t byte; + + if (!dev || !data || !lc_init_data) + return -EINVAL; + + cldev = to_mei_cl_device(dev); + + lc_init_in.header.api_version = HDCP_API_VERSION; + lc_init_in.header.command_id = WIRED_INIT_LOCALITY_CHECK; + lc_init_in.header.status = ME_HDCP_STATUS_SUCCESS; + lc_init_in.header.buffer_len = WIRED_CMD_BUF_LEN_INIT_LOCALITY_CHECK_IN; + + lc_init_in.port.integrated_port_type = data->port_type; + lc_init_in.port.physical_port = (u8)GET_MEI_DDI_INDEX(data->port); + + byte = mei_cldev_send(cldev, (u8 *)&lc_init_in, sizeof(lc_init_in)); + if (byte < 0) { + dev_dbg(dev, "mei_cldev_send failed. %zd\n", byte); + return byte; + } + + byte = mei_cldev_recv(cldev, (u8 *)&lc_init_out, sizeof(lc_init_out)); + if (byte < 0) { + dev_dbg(dev, "mei_cldev_recv failed. %zd\n", byte); + return byte; + } + + if (lc_init_out.header.status != ME_HDCP_STATUS_SUCCESS) { + dev_dbg(dev, "ME cmd 0x%08X Failed. status: 0x%X\n", + WIRED_INIT_LOCALITY_CHECK, lc_init_out.header.status); + return -EIO; + } + + lc_init_data->msg_id = HDCP_2_2_LC_INIT; + memcpy(lc_init_data->r_n, lc_init_out.r_n, HDCP_2_2_RN_LEN); + + return 0; +} + static __attribute__((unused)) struct i915_hdcp_component_ops mei_hdcp_ops = { .owner = THIS_MODULE, @@ -289,7 +343,7 @@ struct i915_hdcp_component_ops mei_hdcp_ops = { .verify_receiver_cert_prepare_km = mei_verify_receiver_cert_prepare_km, .verify_hprime = mei_verify_hprime, .store_pairing_info = mei_store_pairing_info, - .initiate_locality_check = NULL, + .initiate_locality_check = mei_initiate_locality_check, .verify_lprime = NULL, .get_session_key = NULL, .repeater_check_flow_prepare_ack = NULL, From patchwork Thu Jan 31 06:59:46 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ramalingam C X-Patchwork-Id: 10789821 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 ABB1C13BF for ; Thu, 31 Jan 2019 07:07:39 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A741A3002C for ; Thu, 31 Jan 2019 07:07:39 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 9B99930427; Thu, 31 Jan 2019 07:07:39 +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 474D22EFB4 for ; Thu, 31 Jan 2019 07:07:39 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 330BF6EBE7; Thu, 31 Jan 2019 07:07:14 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by gabe.freedesktop.org (Postfix) with ESMTPS id BA8706EBEB; Thu, 31 Jan 2019 07:07:11 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 30 Jan 2019 23:07:11 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,543,1539673200"; d="scan'208";a="114128537" Received: from mint-dev.iind.intel.com ([10.223.25.164]) by orsmga008.jf.intel.com with ESMTP; 30 Jan 2019 23:07:09 -0800 From: Ramalingam C To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, daniel.vetter@ffwll.ch, tomas.winkler@intel.com, uma.shankar@intel.com Date: Thu, 31 Jan 2019 12:29:46 +0530 Message-Id: <1548917996-28081-31-git-send-email-ramalingam.c@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> References: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> Subject: [Intel-gfx] [PATCH v10 30/40] misc/mei/hdcp: Verify L_prime X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP Request to ME to verify the LPrime received from HDCP sink. On Success, ME FW will verify the received Lprime by calculating and comparing with L. This represents the completion of Locality Check. v2: Rebased. v3: cldev is passed as first parameter [Tomas] Redundant comments and cast are removed [Tomas] v4: %zd for ssize_t [Alexander] %s/return -1/return -EIO [Alexander] Style fixed [Uma] v5: Rebased. v6: Collected the Rb-ed by. Rebasing. v7: Adjust to the new mei interface. Fix for Kdoc. v8: K-Doc addition. [Tomas] memcpy for const length. Signed-off-by: Ramalingam C Reviewed-by: Uma Shankar --- drivers/misc/mei/hdcp/mei_hdcp.c | 59 +++++++++++++++++++++++++++++++++++++++- 1 file changed, 58 insertions(+), 1 deletion(-) diff --git a/drivers/misc/mei/hdcp/mei_hdcp.c b/drivers/misc/mei/hdcp/mei_hdcp.c index 412a33e29d7d..3d7767d944dc 100644 --- a/drivers/misc/mei/hdcp/mei_hdcp.c +++ b/drivers/misc/mei/hdcp/mei_hdcp.c @@ -336,6 +336,63 @@ mei_initiate_locality_check(struct device *dev, struct hdcp_port_data *data, return 0; } +/** + * mei_verify_lprime() - Verify lprime. + * @dev: device corresponding to the mei_cl_device + * @hdcp_data: Intel HW specific hdcp data + * @rx_lprime: LC_Send_L_prime msg for ME FW verification + * + * Return: 0 on Success, <0 on Failure + */ +static int mei_verify_lprime(struct device *dev, struct hdcp_port_data *data, + struct hdcp2_lc_send_lprime *rx_lprime) +{ + struct wired_cmd_validate_locality_in verify_lprime_in = { { 0 } }; + struct wired_cmd_validate_locality_out verify_lprime_out = { { 0 } }; + struct mei_cl_device *cldev; + ssize_t byte; + + if (!dev || !data || !rx_lprime) + return -EINVAL; + + cldev = to_mei_cl_device(dev); + + verify_lprime_in.header.api_version = HDCP_API_VERSION; + verify_lprime_in.header.command_id = WIRED_VALIDATE_LOCALITY; + verify_lprime_in.header.status = ME_HDCP_STATUS_SUCCESS; + verify_lprime_in.header.buffer_len = + WIRED_CMD_BUF_LEN_VALIDATE_LOCALITY_IN; + + verify_lprime_in.port.integrated_port_type = data->port_type; + verify_lprime_in.port.physical_port = (u8)GET_MEI_DDI_INDEX(data->port); + + memcpy(verify_lprime_in.l_prime, rx_lprime->l_prime, + HDCP_2_2_L_PRIME_LEN); + + byte = mei_cldev_send(cldev, (u8 *)&verify_lprime_in, + sizeof(verify_lprime_in)); + if (byte < 0) { + dev_dbg(dev, "mei_cldev_send failed. %zd\n", byte); + return byte; + } + + byte = mei_cldev_recv(cldev, (u8 *)&verify_lprime_out, + sizeof(verify_lprime_out)); + if (byte < 0) { + dev_dbg(dev, "mei_cldev_recv failed. %zd\n", byte); + return byte; + } + + if (verify_lprime_out.header.status != ME_HDCP_STATUS_SUCCESS) { + dev_dbg(dev, "ME cmd 0x%08X failed. status: 0x%X\n", + WIRED_VALIDATE_LOCALITY, + verify_lprime_out.header.status); + return -EIO; + } + + return 0; +} + static __attribute__((unused)) struct i915_hdcp_component_ops mei_hdcp_ops = { .owner = THIS_MODULE, @@ -344,7 +401,7 @@ struct i915_hdcp_component_ops mei_hdcp_ops = { .verify_hprime = mei_verify_hprime, .store_pairing_info = mei_store_pairing_info, .initiate_locality_check = mei_initiate_locality_check, - .verify_lprime = NULL, + .verify_lprime = mei_verify_lprime, .get_session_key = NULL, .repeater_check_flow_prepare_ack = NULL, .verify_mprime = NULL, From patchwork Thu Jan 31 06:59:47 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ramalingam C X-Patchwork-Id: 10789829 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 C7D2613BF for ; Thu, 31 Jan 2019 07:07:45 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C54562EFB4 for ; Thu, 31 Jan 2019 07:07:45 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id B93DD300F7; Thu, 31 Jan 2019 07:07:45 +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 5A9C22EFB4 for ; Thu, 31 Jan 2019 07:07:45 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 0D2FE6EBE8; Thu, 31 Jan 2019 07:07:20 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by gabe.freedesktop.org (Postfix) with ESMTPS id 4B3DE6EBEB; Thu, 31 Jan 2019 07:07:14 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 30 Jan 2019 23:07:14 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,543,1539673200"; d="scan'208";a="114128555" Received: from mint-dev.iind.intel.com ([10.223.25.164]) by orsmga008.jf.intel.com with ESMTP; 30 Jan 2019 23:07:11 -0800 From: Ramalingam C To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, daniel.vetter@ffwll.ch, tomas.winkler@intel.com, uma.shankar@intel.com Date: Thu, 31 Jan 2019 12:29:47 +0530 Message-Id: <1548917996-28081-32-git-send-email-ramalingam.c@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> References: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> Subject: [Intel-gfx] [PATCH v10 31/40] misc/mei/hdcp: Prepare Session Key X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP Request to ME to prepare the encrypted session key. On Success, ME provides Encrypted session key. Function populates the HDCP2.2 authentication msg SKE_Send_Eks. v2: Rebased. v3: cldev is passed as first parameter [Tomas] Redundant comments and cast are removed [Tomas] v4: %zd for ssize_t [Alexander] %s/return -1/return -EIO [Alexander] Style fixed [Uma] v5: Rebased. v6: Collected the Rb-ed by. Rebasing. v7: Adjust to the new mei interface. Fix for Kdoc. v8: K-Doc addition. [Tomas] Signed-off-by: Ramalingam C Reviewed-by: Uma Shankar --- drivers/misc/mei/hdcp/mei_hdcp.c | 58 +++++++++++++++++++++++++++++++++++++++- 1 file changed, 57 insertions(+), 1 deletion(-) diff --git a/drivers/misc/mei/hdcp/mei_hdcp.c b/drivers/misc/mei/hdcp/mei_hdcp.c index 3d7767d944dc..2be7b6b949c2 100644 --- a/drivers/misc/mei/hdcp/mei_hdcp.c +++ b/drivers/misc/mei/hdcp/mei_hdcp.c @@ -393,6 +393,62 @@ static int mei_verify_lprime(struct device *dev, struct hdcp_port_data *data, return 0; } +/** + * mei_get_session_key() - Prepare SKE_Send_Eks. + * @dev: device corresponding to the mei_cl_device + * @hdcp_data: Intel HW specific hdcp data + * @ske_data: SKE_Send_Eks msg output from ME FW. + * + * Return: 0 on Success, <0 on Failure + */ +static int mei_get_session_key(struct device *dev, struct hdcp_port_data *data, + struct hdcp2_ske_send_eks *ske_data) +{ + struct wired_cmd_get_session_key_in get_skey_in = { { 0 } }; + struct wired_cmd_get_session_key_out get_skey_out = { { 0 } }; + struct mei_cl_device *cldev; + ssize_t byte; + + if (!dev || !data || !ske_data) + return -EINVAL; + + cldev = to_mei_cl_device(dev); + + get_skey_in.header.api_version = HDCP_API_VERSION; + get_skey_in.header.command_id = WIRED_GET_SESSION_KEY; + get_skey_in.header.status = ME_HDCP_STATUS_SUCCESS; + get_skey_in.header.buffer_len = WIRED_CMD_BUF_LEN_GET_SESSION_KEY_IN; + + get_skey_in.port.integrated_port_type = data->port_type; + get_skey_in.port.physical_port = (u8)GET_MEI_DDI_INDEX(data->port); + + byte = mei_cldev_send(cldev, (u8 *)&get_skey_in, sizeof(get_skey_in)); + if (byte < 0) { + dev_dbg(dev, "mei_cldev_send failed. %zd\n", byte); + return byte; + } + + byte = mei_cldev_recv(cldev, (u8 *)&get_skey_out, sizeof(get_skey_out)); + + if (byte < 0) { + dev_dbg(dev, "mei_cldev_recv failed. %zd\n", byte); + return byte; + } + + if (get_skey_out.header.status != ME_HDCP_STATUS_SUCCESS) { + dev_dbg(dev, "ME cmd 0x%08X failed. status: 0x%X\n", + WIRED_GET_SESSION_KEY, get_skey_out.header.status); + return -EIO; + } + + ske_data->msg_id = HDCP_2_2_SKE_SEND_EKS; + memcpy(ske_data->e_dkey_ks, get_skey_out.e_dkey_ks, + HDCP_2_2_E_DKEY_KS_LEN); + memcpy(ske_data->riv, get_skey_out.r_iv, HDCP_2_2_RIV_LEN); + + return 0; +} + static __attribute__((unused)) struct i915_hdcp_component_ops mei_hdcp_ops = { .owner = THIS_MODULE, @@ -402,7 +458,7 @@ struct i915_hdcp_component_ops mei_hdcp_ops = { .store_pairing_info = mei_store_pairing_info, .initiate_locality_check = mei_initiate_locality_check, .verify_lprime = mei_verify_lprime, - .get_session_key = NULL, + .get_session_key = mei_get_session_key, .repeater_check_flow_prepare_ack = NULL, .verify_mprime = NULL, .enable_hdcp_authentication = NULL, From patchwork Thu Jan 31 06:59:48 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ramalingam C X-Patchwork-Id: 10789837 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 7E30613BF for ; Thu, 31 Jan 2019 07:07:51 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 7A90C2EFB4 for ; Thu, 31 Jan 2019 07:07:51 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 6EDBB300F7; Thu, 31 Jan 2019 07:07:51 +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 1F10E2EFB4 for ; Thu, 31 Jan 2019 07:07:51 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 975E86EBEC; Thu, 31 Jan 2019 07:07:22 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by gabe.freedesktop.org (Postfix) with ESMTPS id D9B796EBE8; Thu, 31 Jan 2019 07:07:16 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 30 Jan 2019 23:07:16 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,543,1539673200"; d="scan'208";a="114128575" Received: from mint-dev.iind.intel.com ([10.223.25.164]) by orsmga008.jf.intel.com with ESMTP; 30 Jan 2019 23:07:14 -0800 From: Ramalingam C To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, daniel.vetter@ffwll.ch, tomas.winkler@intel.com, uma.shankar@intel.com Date: Thu, 31 Jan 2019 12:29:48 +0530 Message-Id: <1548917996-28081-33-git-send-email-ramalingam.c@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> References: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> Subject: [Intel-gfx] [PATCH v10 32/40] misc/mei/hdcp: Repeater topology verification and ack X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP Request ME to verify the downstream topology information received. ME FW will validate the Repeaters receiver id list and downstream topology. On Success ME FW will provide the Least Significant 128bits of VPrime, which forms the repeater ack. v2: Rebased. v3: cldev is passed as first parameter [Tomas] Redundant comments and cast are removed [Tomas] v4: %zd for ssize_t [Alexander] %s/return -1/return -EIO [Alexander] Style and typos fixed [Uma] v5: Rebased. v6: Rebasing. v7: Adjust to the new mei interface. Fix for Kdoc. v8: K-Doc addition. [Tomas] Signed-off-by: Ramalingam C Reviewed-by: Uma Shankar --- drivers/misc/mei/hdcp/mei_hdcp.c | 76 +++++++++++++++++++++++++++++++++++++++- 1 file changed, 75 insertions(+), 1 deletion(-) diff --git a/drivers/misc/mei/hdcp/mei_hdcp.c b/drivers/misc/mei/hdcp/mei_hdcp.c index 2be7b6b949c2..c157c18371b4 100644 --- a/drivers/misc/mei/hdcp/mei_hdcp.c +++ b/drivers/misc/mei/hdcp/mei_hdcp.c @@ -449,6 +449,80 @@ static int mei_get_session_key(struct device *dev, struct hdcp_port_data *data, return 0; } +/** + * mei_repeater_check_flow_prepare_ack() - Validate the Downstream topology + * and prepare rep_ack. + * @dev: device corresponding to the mei_cl_device + * @hdcp_data: Intel HW specific hdcp data + * @rep_topology: Receiver ID List to be validated + * @rep_send_ack : repeater ack from ME FW. + * + * Return: 0 on Success, <0 on Failure + */ +static int +mei_repeater_check_flow_prepare_ack(struct device *dev, + struct hdcp_port_data *data, + struct hdcp2_rep_send_receiverid_list + *rep_topology, + struct hdcp2_rep_send_ack *rep_send_ack) +{ + struct wired_cmd_verify_repeater_in verify_repeater_in = { { 0 } }; + struct wired_cmd_verify_repeater_out verify_repeater_out = { { 0 } }; + struct mei_cl_device *cldev; + ssize_t byte; + + if (!dev || !rep_topology || !rep_send_ack || !data) + return -EINVAL; + + cldev = to_mei_cl_device(dev); + + verify_repeater_in.header.api_version = HDCP_API_VERSION; + verify_repeater_in.header.command_id = WIRED_VERIFY_REPEATER; + verify_repeater_in.header.status = ME_HDCP_STATUS_SUCCESS; + verify_repeater_in.header.buffer_len = + WIRED_CMD_BUF_LEN_VERIFY_REPEATER_IN; + + verify_repeater_in.port.integrated_port_type = data->port_type; + verify_repeater_in.port.physical_port = + (u8)GET_MEI_DDI_INDEX(data->port); + + memcpy(verify_repeater_in.rx_info, rep_topology->rx_info, + HDCP_2_2_RXINFO_LEN); + memcpy(verify_repeater_in.seq_num_v, rep_topology->seq_num_v, + HDCP_2_2_SEQ_NUM_LEN); + memcpy(verify_repeater_in.v_prime, rep_topology->v_prime, + HDCP_2_2_V_PRIME_HALF_LEN); + memcpy(verify_repeater_in.receiver_ids, rep_topology->receiver_ids, + HDCP_2_2_RECEIVER_IDS_MAX_LEN); + + byte = mei_cldev_send(cldev, (u8 *)&verify_repeater_in, + sizeof(verify_repeater_in)); + if (byte < 0) { + dev_dbg(dev, "mei_cldev_send failed. %zd\n", byte); + return byte; + } + + byte = mei_cldev_recv(cldev, (u8 *)&verify_repeater_out, + sizeof(verify_repeater_out)); + if (byte < 0) { + dev_dbg(dev, "mei_cldev_recv failed. %zd\n", byte); + return byte; + } + + if (verify_repeater_out.header.status != ME_HDCP_STATUS_SUCCESS) { + dev_dbg(dev, "ME cmd 0x%08X failed. status: 0x%X\n", + WIRED_VERIFY_REPEATER, + verify_repeater_out.header.status); + return -EIO; + } + + memcpy(rep_send_ack->v, verify_repeater_out.v, + HDCP_2_2_V_PRIME_HALF_LEN); + rep_send_ack->msg_id = HDCP_2_2_REP_SEND_ACK; + + return 0; +} + static __attribute__((unused)) struct i915_hdcp_component_ops mei_hdcp_ops = { .owner = THIS_MODULE, @@ -459,7 +533,7 @@ struct i915_hdcp_component_ops mei_hdcp_ops = { .initiate_locality_check = mei_initiate_locality_check, .verify_lprime = mei_verify_lprime, .get_session_key = mei_get_session_key, - .repeater_check_flow_prepare_ack = NULL, + .repeater_check_flow_prepare_ack = mei_repeater_check_flow_prepare_ack, .verify_mprime = NULL, .enable_hdcp_authentication = NULL, .close_hdcp_session = NULL, From patchwork Thu Jan 31 06:59:49 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ramalingam C X-Patchwork-Id: 10789835 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 B584313BF for ; Thu, 31 Jan 2019 07:07:50 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id B10272EFB4 for ; Thu, 31 Jan 2019 07:07:50 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id A55C6300F7; Thu, 31 Jan 2019 07:07:50 +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 4803E2EFB4 for ; Thu, 31 Jan 2019 07:07:50 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 136A86EBEF; Thu, 31 Jan 2019 07:07:22 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by gabe.freedesktop.org (Postfix) with ESMTPS id 8375D6EBEC; Thu, 31 Jan 2019 07:07:19 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 30 Jan 2019 23:07:19 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,543,1539673200"; d="scan'208";a="114128587" Received: from mint-dev.iind.intel.com ([10.223.25.164]) by orsmga008.jf.intel.com with ESMTP; 30 Jan 2019 23:07:17 -0800 From: Ramalingam C To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, daniel.vetter@ffwll.ch, tomas.winkler@intel.com, uma.shankar@intel.com Date: Thu, 31 Jan 2019 12:29:49 +0530 Message-Id: <1548917996-28081-34-git-send-email-ramalingam.c@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> References: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> Subject: [Intel-gfx] [PATCH v10 33/40] misc/mei/hdcp: Verify M_prime X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP Request to ME to verify the M_Prime received from the HDCP sink. ME FW will calculate the M and compare with M_prime received as part of RepeaterAuth_Stream_Ready, which is HDCP2.2 protocol msg. On successful completion of this stage, downstream propagation of the stream management info is completed. v2: Rebased. v3: cldev is passed as first parameter [Tomas] Redundant comments and cast are removed [Tomas] v4: %zd for ssize_t [Alexander] %s/return -1/return -EIO [Alexander] endianness conversion func is moved to drm_hdcp.h [Uma] v5: Rebased. v6: Collected the Rb-ed by. Rebasing. v7: Adjust to the new mei interface. Fix for Kdoc. v8: K-Doc addition. [Tomas] drm_hdcp2_u32_to_seq_num() is used for u32 to seq_num. Signed-off-by: Ramalingam C Reviewed-by: Uma Shankar --- drivers/misc/mei/hdcp/mei_hdcp.c | 66 +++++++++++++++++++++++++++++++++++++++- 1 file changed, 65 insertions(+), 1 deletion(-) diff --git a/drivers/misc/mei/hdcp/mei_hdcp.c b/drivers/misc/mei/hdcp/mei_hdcp.c index c157c18371b4..91f7b08d1df1 100644 --- a/drivers/misc/mei/hdcp/mei_hdcp.c +++ b/drivers/misc/mei/hdcp/mei_hdcp.c @@ -523,6 +523,70 @@ mei_repeater_check_flow_prepare_ack(struct device *dev, return 0; } +/** + * mei_verify_mprime() - Verify mprime. + * @dev: device corresponding to the mei_cl_device + * @hdcp_data: Intel HW specific hdcp data + * @stream_ready: RepeaterAuth_Stream_Ready msg for ME FW verification. + * + * Return: 0 on Success, <0 on Failure + */ +static int mei_verify_mprime(struct device *dev, struct hdcp_port_data *data, + struct hdcp2_rep_stream_ready *stream_ready) +{ + struct wired_cmd_repeater_auth_stream_req_in + verify_mprime_in = { { 0 } }; + struct wired_cmd_repeater_auth_stream_req_out + verify_mprime_out = { { 0 } }; + struct mei_cl_device *cldev; + ssize_t byte; + + if (!dev || !stream_ready || !data) + return -EINVAL; + + cldev = to_mei_cl_device(dev); + + verify_mprime_in.header.api_version = HDCP_API_VERSION; + verify_mprime_in.header.command_id = WIRED_REPEATER_AUTH_STREAM_REQ; + verify_mprime_in.header.status = ME_HDCP_STATUS_SUCCESS; + verify_mprime_in.header.buffer_len = + WIRED_CMD_BUF_LEN_REPEATER_AUTH_STREAM_REQ_MIN_IN; + + verify_mprime_in.port.integrated_port_type = data->port_type; + verify_mprime_in.port.physical_port = (u8)GET_MEI_DDI_INDEX(data->port); + + 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); + memcpy(verify_mprime_in.streams, data->streams, + (data->k * sizeof(struct hdcp2_streamid_type))); + + verify_mprime_in.k = __swab16(data->k); + + byte = mei_cldev_send(cldev, (u8 *)&verify_mprime_in, + sizeof(verify_mprime_in)); + if (byte < 0) { + dev_dbg(dev, "mei_cldev_send failed. %zd\n", byte); + return byte; + } + + byte = mei_cldev_recv(cldev, (u8 *)&verify_mprime_out, + sizeof(verify_mprime_out)); + if (byte < 0) { + dev_dbg(dev, "mei_cldev_recv failed. %zd\n", byte); + return byte; + } + + if (verify_mprime_out.header.status != ME_HDCP_STATUS_SUCCESS) { + dev_dbg(dev, "ME cmd 0x%08X failed. status: 0x%X\n", + WIRED_REPEATER_AUTH_STREAM_REQ, + verify_mprime_out.header.status); + return -EIO; + } + + return 0; +} + static __attribute__((unused)) struct i915_hdcp_component_ops mei_hdcp_ops = { .owner = THIS_MODULE, @@ -534,7 +598,7 @@ struct i915_hdcp_component_ops mei_hdcp_ops = { .verify_lprime = mei_verify_lprime, .get_session_key = mei_get_session_key, .repeater_check_flow_prepare_ack = mei_repeater_check_flow_prepare_ack, - .verify_mprime = NULL, + .verify_mprime = mei_verify_mprime, .enable_hdcp_authentication = NULL, .close_hdcp_session = NULL, }; From patchwork Thu Jan 31 06:59:50 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ramalingam C X-Patchwork-Id: 10789841 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 964F713BF for ; Thu, 31 Jan 2019 07:07:54 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 92C252EFB4 for ; Thu, 31 Jan 2019 07:07:54 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 86DB4300F7; Thu, 31 Jan 2019 07:07:54 +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 334D02EFB4 for ; Thu, 31 Jan 2019 07:07:54 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id CA4446EBF2; Thu, 31 Jan 2019 07:07:25 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by gabe.freedesktop.org (Postfix) with ESMTPS id 123196EBEE; Thu, 31 Jan 2019 07:07:22 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 30 Jan 2019 23:07:21 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,543,1539673200"; d="scan'208";a="114128601" Received: from mint-dev.iind.intel.com ([10.223.25.164]) by orsmga008.jf.intel.com with ESMTP; 30 Jan 2019 23:07:19 -0800 From: Ramalingam C To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, daniel.vetter@ffwll.ch, tomas.winkler@intel.com, uma.shankar@intel.com Date: Thu, 31 Jan 2019 12:29:50 +0530 Message-Id: <1548917996-28081-35-git-send-email-ramalingam.c@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> References: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> Subject: [Intel-gfx] [PATCH v10 34/40] misc/mei/hdcp: Enabling the HDCP authentication X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP Request to ME to configure a port as authenticated. On Success, ME FW will mark the port as authenticated and provides HDCP cipher with the encryption keys. Enabling the Authentication can be requested once all stages of HDCP2.2 authentication is completed by interacting with ME FW. Only after this stage, driver can enable the HDCP encryption for the port, through HW registers. v2: Rebased. v3: cldev is passed as first parameter [Tomas] Redundant comments and cast are removed [Tomas] v4: %zd for ssize_t [Alexander] %s/return -1/return -EIO [Alexander] Style and typos fixed [Uma] v5: Rebased. v6: Collected the Rb-ed by. Rebased. v7: Adjust to the new mei interface. Fix for Kdoc. v8: K-Doc addition. [Tomas] Signed-off-by: Ramalingam C Reviewed-by: Uma Shankar --- drivers/misc/mei/hdcp/mei_hdcp.c | 54 +++++++++++++++++++++++++++++++++++++++- 1 file changed, 53 insertions(+), 1 deletion(-) diff --git a/drivers/misc/mei/hdcp/mei_hdcp.c b/drivers/misc/mei/hdcp/mei_hdcp.c index 91f7b08d1df1..5303c729612b 100644 --- a/drivers/misc/mei/hdcp/mei_hdcp.c +++ b/drivers/misc/mei/hdcp/mei_hdcp.c @@ -587,6 +587,58 @@ static int mei_verify_mprime(struct device *dev, struct hdcp_port_data *data, return 0; } +/** + * mei_enable_hdcp_authentication() - Mark a port as authenticated through ME FW + * @dev: device corresponding to the mei_cl_device + * @hdcp_data: Intel HW specific hdcp data + * + * Return: 0 on Success, <0 on Failure + */ +static int +mei_enable_hdcp_authentication(struct device *dev, struct hdcp_port_data *data) +{ + struct wired_cmd_enable_auth_in enable_auth_in = { { 0 } }; + struct wired_cmd_enable_auth_out enable_auth_out = { { 0 } }; + struct mei_cl_device *cldev; + ssize_t byte; + + if (!dev || !data) + return -EINVAL; + + cldev = to_mei_cl_device(dev); + + enable_auth_in.header.api_version = HDCP_API_VERSION; + enable_auth_in.header.command_id = WIRED_ENABLE_AUTH; + enable_auth_in.header.status = ME_HDCP_STATUS_SUCCESS; + enable_auth_in.header.buffer_len = WIRED_CMD_BUF_LEN_ENABLE_AUTH_IN; + + enable_auth_in.port.integrated_port_type = data->port_type; + enable_auth_in.port.physical_port = (u8)GET_MEI_DDI_INDEX(data->port); + enable_auth_in.stream_type = data->streams[0].stream_type; + + byte = mei_cldev_send(cldev, (u8 *)&enable_auth_in, + sizeof(enable_auth_in)); + if (byte < 0) { + dev_dbg(dev, "mei_cldev_send failed. %zd\n", byte); + return byte; + } + + byte = mei_cldev_recv(cldev, (u8 *)&enable_auth_out, + sizeof(enable_auth_out)); + if (byte < 0) { + dev_dbg(dev, "mei_cldev_recv failed. %zd\n", byte); + return byte; + } + + if (enable_auth_out.header.status != ME_HDCP_STATUS_SUCCESS) { + dev_dbg(dev, "ME cmd 0x%08X failed. status: 0x%X\n", + WIRED_ENABLE_AUTH, enable_auth_out.header.status); + return -EIO; + } + + return 0; +} + static __attribute__((unused)) struct i915_hdcp_component_ops mei_hdcp_ops = { .owner = THIS_MODULE, @@ -599,7 +651,7 @@ struct i915_hdcp_component_ops mei_hdcp_ops = { .get_session_key = mei_get_session_key, .repeater_check_flow_prepare_ack = mei_repeater_check_flow_prepare_ack, .verify_mprime = mei_verify_mprime, - .enable_hdcp_authentication = NULL, + .enable_hdcp_authentication = mei_enable_hdcp_authentication, .close_hdcp_session = NULL, }; From patchwork Thu Jan 31 06:59:51 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ramalingam C X-Patchwork-Id: 10789845 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 32C491390 for ; Thu, 31 Jan 2019 07:07:57 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 2FA642EFB4 for ; Thu, 31 Jan 2019 07:07:57 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 2380E300F7; Thu, 31 Jan 2019 07:07:57 +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 C1FC12EFB4 for ; Thu, 31 Jan 2019 07:07:56 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id E70986EBF5; Thu, 31 Jan 2019 07:07:29 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by gabe.freedesktop.org (Postfix) with ESMTPS id A40EF6EBF4; Thu, 31 Jan 2019 07:07:24 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 30 Jan 2019 23:07:24 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,543,1539673200"; d="scan'208";a="114128618" Received: from mint-dev.iind.intel.com ([10.223.25.164]) by orsmga008.jf.intel.com with ESMTP; 30 Jan 2019 23:07:22 -0800 From: Ramalingam C To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, daniel.vetter@ffwll.ch, tomas.winkler@intel.com, uma.shankar@intel.com Date: Thu, 31 Jan 2019 12:29:51 +0530 Message-Id: <1548917996-28081-36-git-send-email-ramalingam.c@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> References: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> Subject: [Intel-gfx] [PATCH v10 35/40] misc/mei/hdcp: Closing wired HDCP2.2 Tx Session X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP Request the ME to terminate the HDCP2.2 session for a port. On Success, ME FW will mark the intel port as Deauthenticated and terminate the wired HDCP2.2 Tx session started due to the cmd WIRED_INITIATE_HDCP2_SESSION. v2: Rebased. v3: cldev is passed as first parameter [Tomas] Redundant comments and cast are removed [Tomas] v4: %zd for ssize_t [Alexander] %s/return -1/return -EIO [Alexander] Style and typos fixed [Uma] v5: Extra line is removed. v6: Collected the Rb-ed by. Rebased. v7: Adjust to the new mei interface. Fix for Kdoc. v8: K-Doc addition.[Tomas] Signed-off-by: Ramalingam C Reviewed-by: Uma Shankar --- drivers/misc/mei/hdcp/mei_hdcp.c | 55 +++++++++++++++++++++++++++++++++++++++- 1 file changed, 54 insertions(+), 1 deletion(-) diff --git a/drivers/misc/mei/hdcp/mei_hdcp.c b/drivers/misc/mei/hdcp/mei_hdcp.c index 5303c729612b..edfc70fb0617 100644 --- a/drivers/misc/mei/hdcp/mei_hdcp.c +++ b/drivers/misc/mei/hdcp/mei_hdcp.c @@ -639,6 +639,59 @@ mei_enable_hdcp_authentication(struct device *dev, struct hdcp_port_data *data) return 0; } +/** + * mei_close_hdcp_session() - Close the Wired HDCP Tx session of ME FW per port. + * This also disables the authenticated state of the port. + * @dev: device corresponding to the mei_cl_device + * @hdcp_data: Intel HW specific hdcp data + * + * Return: 0 on Success, <0 on Failure + */ +static int +mei_close_hdcp_session(struct device *dev, struct hdcp_port_data *data) +{ + struct wired_cmd_close_session_in session_close_in = { { 0 } }; + struct wired_cmd_close_session_out session_close_out = { { 0 } }; + struct mei_cl_device *cldev; + ssize_t byte; + + if (!dev || !data) + return -EINVAL; + + cldev = to_mei_cl_device(dev); + + session_close_in.header.api_version = HDCP_API_VERSION; + session_close_in.header.command_id = WIRED_CLOSE_SESSION; + session_close_in.header.status = ME_HDCP_STATUS_SUCCESS; + session_close_in.header.buffer_len = + WIRED_CMD_BUF_LEN_CLOSE_SESSION_IN; + + session_close_in.port.integrated_port_type = data->port_type; + session_close_in.port.physical_port = (u8)GET_MEI_DDI_INDEX(data->port); + + byte = mei_cldev_send(cldev, (u8 *)&session_close_in, + sizeof(session_close_in)); + if (byte < 0) { + dev_dbg(dev, "mei_cldev_send failed. %zd\n", byte); + return byte; + } + + byte = mei_cldev_recv(cldev, (u8 *)&session_close_out, + sizeof(session_close_out)); + if (byte < 0) { + dev_dbg(dev, "mei_cldev_recv failed. %zd\n", byte); + return byte; + } + + if (session_close_out.header.status != ME_HDCP_STATUS_SUCCESS) { + dev_dbg(dev, "Session Close Failed. status: 0x%X\n", + session_close_out.header.status); + return -EIO; + } + + return 0; +} + static __attribute__((unused)) struct i915_hdcp_component_ops mei_hdcp_ops = { .owner = THIS_MODULE, @@ -652,7 +705,7 @@ struct i915_hdcp_component_ops mei_hdcp_ops = { .repeater_check_flow_prepare_ack = mei_repeater_check_flow_prepare_ack, .verify_mprime = mei_verify_mprime, .enable_hdcp_authentication = mei_enable_hdcp_authentication, - .close_hdcp_session = NULL, + .close_hdcp_session = mei_close_hdcp_session, }; static int mei_hdcp_probe(struct mei_cl_device *cldev, From patchwork Thu Jan 31 06:59:52 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ramalingam C X-Patchwork-Id: 10789853 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 201B61390 for ; Thu, 31 Jan 2019 07:08:04 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 1C5042EFB4 for ; Thu, 31 Jan 2019 07:08:04 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 1038B300F7; Thu, 31 Jan 2019 07:08:04 +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 AB5922EFB4 for ; Thu, 31 Jan 2019 07:08:03 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 4B0A86EBF7; Thu, 31 Jan 2019 07:07:34 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by gabe.freedesktop.org (Postfix) with ESMTPS id 43CC36EBEE; Thu, 31 Jan 2019 07:07:27 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 30 Jan 2019 23:07:27 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,543,1539673200"; d="scan'208";a="114128626" Received: from mint-dev.iind.intel.com ([10.223.25.164]) by orsmga008.jf.intel.com with ESMTP; 30 Jan 2019 23:07:24 -0800 From: Ramalingam C To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, daniel.vetter@ffwll.ch, tomas.winkler@intel.com, uma.shankar@intel.com Date: Thu, 31 Jan 2019 12:29:52 +0530 Message-Id: <1548917996-28081-37-git-send-email-ramalingam.c@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> References: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> Subject: [Intel-gfx] [PATCH v10 36/40] misc/mei/hdcp: Component framework for I915 Interface X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP Mei hdcp driver is designed as component slave for the I915 component master. v2: Rebased. v3: Notifier chain is adopted for cldev state update [Tomas] v4: Made static dummy functions as inline in mei_hdcp.h API for polling client device status IS_ENABLED used in header, for config status for mei_hdcp. v5: Replacing the notifier with component framework. [Daniel] v6: Rebased on the I915 comp master redesign. v7: mei_hdcp_component_registered is made static [Uma] Need for global static variable mei_cldev is removed. v8: master comp is added to be matched with i915 subcomponent [daniel] Signed-off-by: Ramalingam C Reviewed-by: Uma Shankar Reviewed-by: Daniel Vetter --- drivers/misc/mei/hdcp/mei_hdcp.c | 90 +++++++++++++++++++++++++++++++++++++++- drivers/misc/mei/hdcp/mei_hdcp.h | 5 +++ 2 files changed, 93 insertions(+), 2 deletions(-) diff --git a/drivers/misc/mei/hdcp/mei_hdcp.c b/drivers/misc/mei/hdcp/mei_hdcp.c index edfc70fb0617..be2ce12ca460 100644 --- a/drivers/misc/mei/hdcp/mei_hdcp.c +++ b/drivers/misc/mei/hdcp/mei_hdcp.c @@ -23,6 +23,7 @@ #include #include #include +#include #include #include #include @@ -692,8 +693,7 @@ mei_close_hdcp_session(struct device *dev, struct hdcp_port_data *data) return 0; } -static __attribute__((unused)) -struct i915_hdcp_component_ops mei_hdcp_ops = { +static struct i915_hdcp_component_ops mei_hdcp_ops = { .owner = THIS_MODULE, .initiate_hdcp2_session = mei_initiate_hdcp2_session, .verify_receiver_cert_prepare_km = mei_verify_receiver_cert_prepare_km, @@ -708,20 +708,106 @@ struct i915_hdcp_component_ops mei_hdcp_ops = { .close_hdcp_session = mei_close_hdcp_session, }; +static int mei_component_master_bind(struct device *dev) +{ + struct mei_cl_device *cldev = to_mei_cl_device(dev); + struct mei_hdcp_drv_data *drv_data = mei_cldev_get_drvdata(cldev); + int ret; + + dev_info(dev, "%s\n", __func__); + drv_data->comp_master->ops = &mei_hdcp_ops; + drv_data->comp_master->mei_dev = dev; + ret = component_bind_all(dev, drv_data->comp_master); + if (ret < 0) + return ret; + + return 0; +} + +static void mei_component_master_unbind(struct device *dev) +{ + struct mei_cl_device *cldev = to_mei_cl_device(dev); + struct mei_hdcp_drv_data *drv_data = mei_cldev_get_drvdata(cldev); + + dev_info(dev, "%s\n", __func__); + component_unbind_all(dev, drv_data->comp_master); +} + +static const struct component_master_ops mei_component_master_ops = { + .bind = mei_component_master_bind, + .unbind = mei_component_master_unbind, +}; + +static int mei_hdcp_component_match(struct device *dev, int subcomponent, + void *data) +{ + return !strcmp(dev->driver->name, "i915") && + subcomponent == I915_COMPONENT_HDCP; +} + static int mei_hdcp_probe(struct mei_cl_device *cldev, const struct mei_cl_device_id *id) { + struct mei_hdcp_drv_data *drv_data; int ret; ret = mei_cldev_enable(cldev); if (ret < 0) dev_err(&cldev->dev, "mei_cldev_enable Failed. %d\n", ret); + drv_data = kzalloc(sizeof(*drv_data), GFP_KERNEL); + if (!drv_data) { + ret = -ENOMEM; + goto drv_data_exit; + } + + drv_data->comp_master = kzalloc(sizeof(*drv_data->comp_master), + GFP_KERNEL); + if (!drv_data->comp_master) { + ret = -ENOMEM; + goto comp_master_exit; + } + + drv_data->master_match = NULL; + component_match_add_typed(&cldev->dev, &drv_data->master_match, + mei_hdcp_component_match, + drv_data->comp_master); + if (IS_ERR_OR_NULL(drv_data->master_match)) { + ret = -ENOMEM; + goto match_add_exit; + } + + mei_cldev_set_drvdata(cldev, drv_data); + ret = component_master_add_with_match(&cldev->dev, + &mei_component_master_ops, + drv_data->master_match); + if (ret < 0) { + dev_err(&cldev->dev, "Master comp add failed %d\n", ret); + mei_cldev_set_drvdata(cldev, NULL); + goto match_add_exit; + } + + return 0; + +match_add_exit: + kfree(drv_data->comp_master); +comp_master_exit: + kfree(drv_data); +drv_data_exit: + mei_cldev_disable(cldev); + return ret; } static int mei_hdcp_remove(struct mei_cl_device *cldev) { + struct mei_hdcp_drv_data *drv_data = mei_cldev_get_drvdata(cldev); + + component_master_del(&cldev->dev, &mei_component_master_ops); + kfree(drv_data->comp_master); + kfree(drv_data); + mei_cldev_set_drvdata(cldev, NULL); + return mei_cldev_disable(cldev); } diff --git a/drivers/misc/mei/hdcp/mei_hdcp.h b/drivers/misc/mei/hdcp/mei_hdcp.h index f831db3cbd54..5c872a57ba11 100644 --- a/drivers/misc/mei/hdcp/mei_hdcp.h +++ b/drivers/misc/mei/hdcp/mei_hdcp.h @@ -363,6 +363,11 @@ struct wired_cmd_repeater_auth_stream_req_out { struct hdcp_port_id port; } __packed; +struct mei_hdcp_drv_data { + struct i915_hdcp_comp_master *comp_master; + struct component_match *master_match; +}; + enum mei_hdcp_ddi { MEI_DDI_INVALID_PORT = 0x0, From patchwork Thu Jan 31 06:59:53 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ramalingam C X-Patchwork-Id: 10789855 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 9BEEF184E for ; Thu, 31 Jan 2019 07:08:04 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 98D462EFB4 for ; Thu, 31 Jan 2019 07:08:04 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 8CBA3300F7; Thu, 31 Jan 2019 07:08:04 +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 2D2273002C for ; Thu, 31 Jan 2019 07:08:04 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 034E06EBF6; Thu, 31 Jan 2019 07:07:33 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by gabe.freedesktop.org (Postfix) with ESMTPS id CDEA36EBEE; Thu, 31 Jan 2019 07:07:29 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 30 Jan 2019 23:07:29 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,543,1539673200"; d="scan'208";a="114128638" Received: from mint-dev.iind.intel.com ([10.223.25.164]) by orsmga008.jf.intel.com with ESMTP; 30 Jan 2019 23:07:27 -0800 From: Ramalingam C To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, daniel.vetter@ffwll.ch, tomas.winkler@intel.com, uma.shankar@intel.com Date: Thu, 31 Jan 2019 12:29:53 +0530 Message-Id: <1548917996-28081-38-git-send-email-ramalingam.c@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> References: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> Subject: [Intel-gfx] [PATCH v10 37/40] drm/i915: Commit CP without modeset X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP Commits the content protection change of a connector, without crtc modeset. This improves the user experience. Originally proposed by Sean Paul at v3 of HDCP1.4 framework https://patchwork.freedesktop.org/patch/191759/. For some reason this was dropped, but needed for the proper functionality of HDCP encryption. Signed-off-by: Ramalingam C Suggested-by: Sean Paul --- drivers/gpu/drm/i915/intel_ddi.c | 7 ------- drivers/gpu/drm/i915/intel_display.c | 10 ++++++++++ drivers/gpu/drm/i915/intel_drv.h | 5 +++++ drivers/gpu/drm/i915/intel_hdcp.c | 32 ++++++++++++++++++++++++++++---- 4 files changed, 43 insertions(+), 11 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c index ca705546a0ab..9cb03c1b0abc 100644 --- a/drivers/gpu/drm/i915/intel_ddi.c +++ b/drivers/gpu/drm/i915/intel_ddi.c @@ -3495,11 +3495,6 @@ static void intel_enable_ddi(struct intel_encoder *encoder, intel_enable_ddi_hdmi(encoder, crtc_state, conn_state); else intel_enable_ddi_dp(encoder, crtc_state, conn_state); - - /* 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)); } static void intel_disable_ddi_dp(struct intel_encoder *encoder, @@ -3542,8 +3537,6 @@ static void intel_disable_ddi(struct intel_encoder *encoder, const struct intel_crtc_state *old_crtc_state, const struct drm_connector_state *old_conn_state) { - intel_hdcp_disable(to_intel_connector(old_conn_state->connector)); - if (intel_crtc_has_type(old_crtc_state, INTEL_OUTPUT_HDMI)) intel_disable_ddi_hdmi(encoder, old_crtc_state, old_conn_state); else diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index a025efb1d7c6..9b964dabb57c 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -13034,6 +13034,8 @@ static void intel_atomic_commit_tail(struct drm_atomic_state *state) struct drm_i915_private *dev_priv = to_i915(dev); struct drm_crtc_state *old_crtc_state, *new_crtc_state; struct intel_crtc_state *new_intel_crtc_state, *old_intel_crtc_state; + struct drm_connector_state *old_conn_state, *new_conn_state; + struct drm_connector *connector; struct drm_crtc *crtc; struct intel_crtc *intel_crtc; u64 put_domains[I915_MAX_PIPES] = {}; @@ -13128,9 +13130,17 @@ static void intel_atomic_commit_tail(struct drm_atomic_state *state) } } + for_each_oldnew_connector_in_state(state, connector, old_conn_state, + new_conn_state, i) + intel_hdcp_atomic_pre_commit(connector, old_conn_state, + new_conn_state); + /* Now enable the clocks, plane, pipe, and connectors that we set up. */ dev_priv->display.update_crtcs(state); + for_each_new_connector_in_state(state, connector, new_conn_state, i) + intel_hdcp_atomic_commit(connector, new_conn_state); + /* FIXME: We should call drm_atomic_helper_commit_hw_done() here * already, but still need the state for the delayed optimization. To * fix this: diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index 1901d12bacc4..e6b6e920ab01 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -2129,6 +2129,11 @@ static inline void intel_backlight_device_unregister(struct intel_connector *con void intel_hdcp_atomic_check(struct drm_connector *connector, struct drm_connector_state *old_state, struct drm_connector_state *new_state); +void intel_hdcp_atomic_pre_commit(struct drm_connector *connector, + struct drm_connector_state *old_state, + struct drm_connector_state *new_state); +void intel_hdcp_atomic_commit(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, bool hdcp2_supported); diff --git a/drivers/gpu/drm/i915/intel_hdcp.c b/drivers/gpu/drm/i915/intel_hdcp.c index f38feeadb363..ef127dc7a241 100644 --- a/drivers/gpu/drm/i915/intel_hdcp.c +++ b/drivers/gpu/drm/i915/intel_hdcp.c @@ -1876,7 +1876,6 @@ void intel_hdcp_atomic_check(struct drm_connector *connector, { u64 old_cp = old_state->content_protection; u64 new_cp = new_state->content_protection; - struct drm_crtc_state *crtc_state; if (!new_state->crtc) { /* @@ -1897,10 +1896,35 @@ void intel_hdcp_atomic_check(struct drm_connector *connector, (old_cp == DRM_MODE_CONTENT_PROTECTION_DESIRED && new_cp == DRM_MODE_CONTENT_PROTECTION_ENABLED)) return; +} + +void intel_hdcp_atomic_pre_commit(struct drm_connector *connector, + struct drm_connector_state *old_state, + struct drm_connector_state *new_state) +{ + u64 old_cp = old_state->content_protection; + u64 new_cp = new_state->content_protection; + + /* + * Disable HDCP if the connector is becoming disabled, or if requested + * via the property. + */ + if ((!new_state->crtc && + old_cp != DRM_MODE_CONTENT_PROTECTION_UNDESIRED) || + (new_state->crtc && + old_cp != DRM_MODE_CONTENT_PROTECTION_UNDESIRED && + new_cp == DRM_MODE_CONTENT_PROTECTION_UNDESIRED)) + intel_hdcp_disable(to_intel_connector(connector)); +} + +void intel_hdcp_atomic_commit(struct drm_connector *connector, + struct drm_connector_state *new_state) +{ + u64 new_cp = new_state->content_protection; - crtc_state = drm_atomic_get_new_crtc_state(new_state->state, - new_state->crtc); - crtc_state->mode_changed = true; + /* Enable hdcp if it's desired */ + if (new_state->crtc && new_cp == DRM_MODE_CONTENT_PROTECTION_DESIRED) + intel_hdcp_enable(to_intel_connector(connector)); } /* Handles the CP_IRQ raised from the DP HDCP sink */ From patchwork Thu Jan 31 06:59:54 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ramalingam C X-Patchwork-Id: 10789861 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 05ADC13BF for ; Thu, 31 Jan 2019 07:08:09 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 0132D2EFB4 for ; Thu, 31 Jan 2019 07:08:09 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id E979C300F7; Thu, 31 Jan 2019 07:08:08 +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 AA7042EFB4 for ; Thu, 31 Jan 2019 07:08:08 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 9F7076EBFC; Thu, 31 Jan 2019 07:07:41 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by gabe.freedesktop.org (Postfix) with ESMTPS id 6D3CA6EBF9; Thu, 31 Jan 2019 07:07:32 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 30 Jan 2019 23:07:32 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,543,1539673200"; d="scan'208";a="114128652" Received: from mint-dev.iind.intel.com ([10.223.25.164]) by orsmga008.jf.intel.com with ESMTP; 30 Jan 2019 23:07:29 -0800 From: Ramalingam C To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, daniel.vetter@ffwll.ch, tomas.winkler@intel.com, uma.shankar@intel.com Date: Thu, 31 Jan 2019 12:29:54 +0530 Message-Id: <1548917996-28081-39-git-send-email-ramalingam.c@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> References: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> Subject: [Intel-gfx] [PATCH v10 38/40] drm/i915: Fix KBL HDCP2.2 encrypt status signalling X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP Implement the required WA sequence for KBL to fix the incorrect positioning of the window of oppurtunity and enc_en signalling. v2: WA is moved into the toggle_signalling [Daniel] Signed-off-by: Ramalingam C Reviewed-by: Daniel Vetter --- drivers/gpu/drm/i915/intel_hdmi.c | 42 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c index 2c4bf6d0c39f..ae20288f7bbf 100644 --- a/drivers/gpu/drm/i915/intel_hdmi.c +++ b/drivers/gpu/drm/i915/intel_hdmi.c @@ -1083,10 +1083,44 @@ int intel_hdmi_hdcp_read_v_prime_part(struct intel_digital_port *intel_dig_port, return ret; } +static int kbl_repositioning_enc_en_signal(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); + struct drm_crtc *crtc = connector->base.state->crtc; + struct intel_crtc *intel_crtc = container_of(crtc, + struct intel_crtc, base); + u32 scanline; + int ret; + + for (;;) { + scanline = I915_READ(PIPEDSL(intel_crtc->pipe)); + if (scanline > 100 && scanline < 200) + break; + usleep_range(25, 50); + } + + ret = intel_ddi_toggle_hdcp_signalling(&intel_dig_port->base, false); + if (ret) { + DRM_ERROR("Disable HDCP signalling failed (%d)\n", ret); + return ret; + } + ret = intel_ddi_toggle_hdcp_signalling(&intel_dig_port->base, true); + if (ret) { + DRM_ERROR("Enable HDCP signalling failed (%d)\n", ret); + return ret; + } + + return 0; +} + static int intel_hdmi_hdcp_toggle_signalling(struct intel_digital_port *intel_dig_port, bool enable) { + struct intel_hdmi *hdmi = &intel_dig_port->hdmi; + struct intel_connector *connector = hdmi->attached_connector; + struct drm_i915_private *dev_priv = to_i915(connector->base.dev); int ret; if (!enable) @@ -1098,6 +1132,14 @@ int intel_hdmi_hdcp_toggle_signalling(struct intel_digital_port *intel_dig_port, enable ? "Enable" : "Disable", ret); return ret; } + + /* + * WA: To fix incorrect positioning of the window of + * opportunity and enc_en signalling in KABYLAKE. + */ + if (IS_KABYLAKE(dev_priv) && enable) + return kbl_repositioning_enc_en_signal(connector); + return 0; } From patchwork Thu Jan 31 06:59:55 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ramalingam C X-Patchwork-Id: 10789863 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 AB717184E for ; Thu, 31 Jan 2019 07:08:09 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A7B902EFB4 for ; Thu, 31 Jan 2019 07:08:09 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 9BFC8300F7; Thu, 31 Jan 2019 07:08:09 +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 6E2D12EFB4 for ; Thu, 31 Jan 2019 07:08:09 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id C597B6EBFD; Thu, 31 Jan 2019 07:07:40 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by gabe.freedesktop.org (Postfix) with ESMTPS id 127696EBFA; Thu, 31 Jan 2019 07:07:35 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 30 Jan 2019 23:07:34 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,543,1539673200"; d="scan'208";a="114128670" Received: from mint-dev.iind.intel.com ([10.223.25.164]) by orsmga008.jf.intel.com with ESMTP; 30 Jan 2019 23:07:32 -0800 From: Ramalingam C To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, daniel.vetter@ffwll.ch, tomas.winkler@intel.com, uma.shankar@intel.com Date: Thu, 31 Jan 2019 12:29:55 +0530 Message-Id: <1548917996-28081-40-git-send-email-ramalingam.c@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> References: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> Subject: [Intel-gfx] [PATCH v10 39/40] FOR_TEST: i915/Kconfig: Select mei_hdcp by I915 X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP FOR TESTING PURPOSE ONLY. By default INTEL_MEI_HDCP is set to y. This patch is created to test the interface between I915 and MEI_HDCP. Signed-off-by: Ramalingam C --- drivers/misc/mei/Kconfig | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/misc/mei/Kconfig b/drivers/misc/mei/Kconfig index 9c518b7f0011..90ed55210447 100644 --- a/drivers/misc/mei/Kconfig +++ b/drivers/misc/mei/Kconfig @@ -48,5 +48,6 @@ config INTEL_MEI_HDCP tristate "Intel HDCP2.2 services of ME Interface" select INTEL_MEI_ME depends on DRM_I915 + default y help MEI Support for HDCP2.2 Services on Intel SoCs. From patchwork Thu Jan 31 06:59:56 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ramalingam C X-Patchwork-Id: 10789865 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 868C61390 for ; Thu, 31 Jan 2019 07:08:10 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 8491F2EFB4 for ; Thu, 31 Jan 2019 07:08:10 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 78AF4300F7; Thu, 31 Jan 2019 07:08:10 +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 3822E2EFB4 for ; Thu, 31 Jan 2019 07:08:10 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id D8A0D6EBFF; Thu, 31 Jan 2019 07:07:40 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by gabe.freedesktop.org (Postfix) with ESMTPS id 954F16EBFB; Thu, 31 Jan 2019 07:07:37 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 30 Jan 2019 23:07:37 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.56,543,1539673200"; d="scan'208";a="114128677" Received: from mint-dev.iind.intel.com ([10.223.25.164]) by orsmga008.jf.intel.com with ESMTP; 30 Jan 2019 23:07:35 -0800 From: Ramalingam C To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org, daniel.vetter@ffwll.ch, tomas.winkler@intel.com, uma.shankar@intel.com Date: Thu, 31 Jan 2019 12:29:56 +0530 Message-Id: <1548917996-28081-41-git-send-email-ramalingam.c@intel.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> References: <1548917996-28081-1-git-send-email-ramalingam.c@intel.com> Subject: [Intel-gfx] [PATCH v10 40/40] FOR_TESTING_ONLY: debugfs: Excluding the LSPCon for HDCP1.4 X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP Just excluding the LSPCon HDMI ports from the HDCP1.4 testing. Signed-off-by: Ramalingam C --- drivers/gpu/drm/i915/i915_debugfs.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c index fa2c226fc779..4935448891be 100644 --- a/drivers/gpu/drm/i915/i915_debugfs.c +++ b/drivers/gpu/drm/i915/i915_debugfs.c @@ -4794,6 +4794,9 @@ 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); + struct intel_digital_port *intel_dig_port = + conn_to_dig_port(intel_connector); + bool is_hdcp14; if (connector->status != connector_status_connected) return -ENODEV; @@ -4804,8 +4807,11 @@ 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"); + + /* Excluding the Lspcon for Testing Purpose */ + is_hdcp14 = intel_hdcp_capable(intel_connector) && + !intel_dig_port->lspcon.active; + seq_printf(m, "%s ", !is_hdcp14 ? "None" : "HDCP1.4"); seq_puts(m, "\n"); return 0;