From patchwork Mon Sep 24 22:45:23 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Dhinakaran Pandiyan X-Patchwork-Id: 10613003 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 68226161F for ; Mon, 24 Sep 2018 22:52:24 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 480312A385 for ; Mon, 24 Sep 2018 22:52:24 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 3C5322A5F1; Mon, 24 Sep 2018 22:52:24 +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=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 E60932A385 for ; Mon, 24 Sep 2018 22:52:23 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 8C5188985A; Mon, 24 Sep 2018 22:52:23 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTPS id 8A6AC8925B for ; Mon, 24 Sep 2018 22:52:13 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by fmsmga102.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 24 Sep 2018 15:52:12 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.54,299,1534834800"; d="scan'208";a="91565534" Received: from dk-thinkpad-x260.jf.intel.com ([10.54.75.54]) by fmsmga004.fm.intel.com with ESMTP; 24 Sep 2018 15:45:36 -0700 From: Dhinakaran Pandiyan To: intel-gfx@lists.freedesktop.org Date: Mon, 24 Sep 2018 15:45:23 -0700 Message-Id: <20180924224528.4744-1-dhinakaran.pandiyan@intel.com> X-Mailer: git-send-email 2.17.1 MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v2 1/6] drm/i915/dp: Fix link retraining comment in intel_dp_long_pulse() 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: Jan-Marek Glogowski , Dhinakaran Pandiyan , Rodrigo Vivi Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP Comment claims link needs to be retrained because the connected sink raised a long pulse to indicate link loss. If the sink did so, intel_dp_hotplug() would have handled link retraining. Looking at the logs in Bugzilla referenced in commit '3cf71bc9904d ("drm/i915: Re-apply Perform link quality check, unconditionally during long pulse"")', the issue is that the sink does not trigger an interrupt. What we want is ->detect() from user space to check link status and retrain. Ville's review for the original patch also indicates the same root cause. So, rewrite the comment. v2: Patch split and rewrote comment. Cc: Lyude Paul Cc: Ville Syrjälä Cc: Jani Nikula Cc: Rodrigo Vivi Cc: Jan-Marek Glogowski References: 3cf71bc9904d ("drm/i915: Re-apply "Perform link quality check, unconditionally during long pulse"") Signed-off-by: Dhinakaran Pandiyan Reviewed-by: Lyude Paul --- drivers/gpu/drm/i915/intel_dp.c | 13 +++---------- 1 file changed, 3 insertions(+), 10 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 6b4c19123f2a..34c561011e7a 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -5074,16 +5074,9 @@ intel_dp_long_pulse(struct intel_connector *connector, goto out; } else { /* - * If display is now connected check links status, - * there has been known issues of link loss triggering - * long pulse. - * - * Some sinks (eg. ASUS PB287Q) seem to perform some - * weird HPD ping pong during modesets. So we can apparently - * end up with HPD going low during a modeset, and then - * going back up soon after. And once that happens we must - * retrain the link to get a picture. That's in case no - * userspace component reacted to intermittent HPD dip. + * Some external monitors do not signal loss of link + * synchronization with an IRQ_HPD, so force a link status + * check. */ struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base; From patchwork Mon Sep 24 22:45:24 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Dhinakaran Pandiyan X-Patchwork-Id: 10612997 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 95ACC913 for ; Mon, 24 Sep 2018 22:52:17 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 747AF2A385 for ; Mon, 24 Sep 2018 22:52:17 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 68D122A5F1; Mon, 24 Sep 2018 22:52:17 +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=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 E4BB32A385 for ; Mon, 24 Sep 2018 22:52:16 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 04E1C894DD; Mon, 24 Sep 2018 22:52:15 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTPS id 735B289258 for ; Mon, 24 Sep 2018 22:52:13 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by fmsmga102.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 24 Sep 2018 15:52:12 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.54,299,1534834800"; d="scan'208";a="91565535" Received: from dk-thinkpad-x260.jf.intel.com ([10.54.75.54]) by fmsmga004.fm.intel.com with ESMTP; 24 Sep 2018 15:45:36 -0700 From: Dhinakaran Pandiyan To: intel-gfx@lists.freedesktop.org Date: Mon, 24 Sep 2018 15:45:24 -0700 Message-Id: <20180924224528.4744-2-dhinakaran.pandiyan@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20180924224528.4744-1-dhinakaran.pandiyan@intel.com> References: <20180924224528.4744-1-dhinakaran.pandiyan@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v2 2/6] drm/i915/dp: Restrict link retrain workaround to external monitors 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: Jan-Marek Glogowski , Dhinakaran Pandiyan , Rodrigo Vivi Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP Commit '3cf71bc9904d ("drm/i915: Re-apply "Perform link quality check, unconditionally during long pulse"")' applies a work around for sinks that don't signal link loss. The work around does not need to have to be that broad as the issue was seen with only one particular monitor; limit this only for external displays as eDP features like PSR turn off the link and the driver ends up retraining the link seeeing that link is not synchronized. Cc: Lyude Paul Cc: Jan-Marek Glogowski Cc: Ville Syrjälä Cc: Rodrigo Vivi References: 3cf71bc9904d ("drm/i915: Re-apply "Perform link quality check, unconditionally during long pulse"") Signed-off-by: Dhinakaran Pandiyan Reviewed-by: Lyude Paul --- drivers/gpu/drm/i915/intel_dp.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 34c561011e7a..6130d05d8b88 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -5072,12 +5072,13 @@ intel_dp_long_pulse(struct intel_connector *connector, */ status = connector_status_disconnected; goto out; - } else { - /* - * Some external monitors do not signal loss of link - * synchronization with an IRQ_HPD, so force a link status - * check. - */ + } + + /* + * Some external monitors do not signal loss of link synchronization + * with an IRQ_HPD, so force a link status check. + */ + if (!intel_dp_is_edp(intel_dp)) { struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base; intel_dp_retrain_link(encoder, ctx); From patchwork Mon Sep 24 22:45:25 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Dhinakaran Pandiyan X-Patchwork-Id: 10612995 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 C0DB1913 for ; Mon, 24 Sep 2018 22:52:16 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 9F3932A385 for ; Mon, 24 Sep 2018 22:52:16 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 9260E2A5F1; Mon, 24 Sep 2018 22:52:16 +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 9839A2A385 for ; Mon, 24 Sep 2018 22:52:15 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 17323893CB; Mon, 24 Sep 2018 22:52:14 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTPS id A1CEF89258 for ; Mon, 24 Sep 2018 22:52:13 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by fmsmga102.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 24 Sep 2018 15:52:12 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.54,299,1534834800"; d="scan'208";a="91565537" Received: from dk-thinkpad-x260.jf.intel.com ([10.54.75.54]) by fmsmga004.fm.intel.com with ESMTP; 24 Sep 2018 15:45:36 -0700 From: Dhinakaran Pandiyan To: intel-gfx@lists.freedesktop.org Date: Mon, 24 Sep 2018 15:45:25 -0700 Message-Id: <20180924224528.4744-3-dhinakaran.pandiyan@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20180924224528.4744-1-dhinakaran.pandiyan@intel.com> References: <20180924224528.4744-1-dhinakaran.pandiyan@intel.com> Subject: [Intel-gfx] [PATCH v2 3/6] drm/i915/dp: Use a local variable for intel_encoder * 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: Dhinakaran Pandiyan MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP We have two cases of intel_dp to intel_encoder conversions, use a local variable to store the conversion. Signed-off-by: Dhinakaran Pandiyan Reviewed-by: José Roberto de Souza --- drivers/gpu/drm/i915/intel_dp.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 6130d05d8b88..09229fc66dec 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -5017,6 +5017,7 @@ intel_dp_long_pulse(struct intel_connector *connector, { struct drm_i915_private *dev_priv = to_i915(connector->base.dev); struct intel_dp *intel_dp = intel_attached_dp(&connector->base); + struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base; enum drm_connector_status status; u8 sink_irq_vector = 0; @@ -5027,7 +5028,7 @@ intel_dp_long_pulse(struct intel_connector *connector, /* Can't disconnect eDP */ if (intel_dp_is_edp(intel_dp)) status = edp_detect(intel_dp); - else if (intel_digital_port_connected(&dp_to_dig_port(intel_dp)->base)) + else if (intel_digital_port_connected(encoder)) status = intel_dp_detect_dpcd(intel_dp); else status = connector_status_disconnected; @@ -5078,11 +5079,8 @@ intel_dp_long_pulse(struct intel_connector *connector, * Some external monitors do not signal loss of link synchronization * with an IRQ_HPD, so force a link status check. */ - if (!intel_dp_is_edp(intel_dp)) { - struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base; - + if (!intel_dp_is_edp(intel_dp)) intel_dp_retrain_link(encoder, ctx); - } /* * Clearing NACK and defer counts to get their exact values From patchwork Mon Sep 24 22:45:26 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Dhinakaran Pandiyan X-Patchwork-Id: 10613005 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 AEFDC913 for ; Mon, 24 Sep 2018 22:52:27 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 8F1772A385 for ; Mon, 24 Sep 2018 22:52:27 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 83BDE2A5F1; Mon, 24 Sep 2018 22:52:27 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 441C82A385 for ; Mon, 24 Sep 2018 22:52:27 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id DB7648991C; Mon, 24 Sep 2018 22:52:26 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTPS id CFE3B89258 for ; Mon, 24 Sep 2018 22:52:13 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by fmsmga102.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 24 Sep 2018 15:52:13 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.54,299,1534834800"; d="scan'208";a="91565540" Received: from dk-thinkpad-x260.jf.intel.com ([10.54.75.54]) by fmsmga004.fm.intel.com with ESMTP; 24 Sep 2018 15:45:37 -0700 From: Dhinakaran Pandiyan To: intel-gfx@lists.freedesktop.org Date: Mon, 24 Sep 2018 15:45:26 -0700 Message-Id: <20180924224528.4744-4-dhinakaran.pandiyan@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20180924224528.4744-1-dhinakaran.pandiyan@intel.com> References: <20180924224528.4744-1-dhinakaran.pandiyan@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v2 4/6] drm/i915/dp: Do not grab crtc modeset lock in intel_dp_detect() 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: Dhinakaran Pandiyan Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP A crtc modeset lock was added for link retraining but intel_dp_retrain_link() knows to take the necessary locks since commit c85d200e8321 ("drm/i915: Move SST DP link retraining into the ->post_hotplug() hook") Fixes: c85d200e8321 ("drm/i915: Move SST DP link retraining into the ->post_hotplug() hook") Cc: Ville Syrjälä Signed-off-by: Dhinakaran Pandiyan Reviewed-by: José Roberto de Souza --- drivers/gpu/drm/i915/intel_dp.c | 22 ++++++++-------------- 1 file changed, 8 insertions(+), 14 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 09229fc66dec..87a631098a6d 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -5079,8 +5079,13 @@ intel_dp_long_pulse(struct intel_connector *connector, * Some external monitors do not signal loss of link synchronization * with an IRQ_HPD, so force a link status check. */ - if (!intel_dp_is_edp(intel_dp)) - intel_dp_retrain_link(encoder, ctx); + if (!intel_dp_is_edp(intel_dp)) { + int ret; + + ret = intel_dp_retrain_link(encoder, ctx); + if (ret) + return ret; + } /* * Clearing NACK and defer counts to get their exact values @@ -5130,19 +5135,8 @@ intel_dp_detect(struct drm_connector *connector, connector->base.id, connector->name); /* If full detect is not performed yet, do a full detect */ - if (!intel_dp->detect_done) { - struct drm_crtc *crtc; - int ret; - - crtc = connector->state->crtc; - if (crtc) { - ret = drm_modeset_lock(&crtc->mutex, ctx); - if (ret) - return ret; - } - + if (!intel_dp->detect_done) status = intel_dp_long_pulse(intel_dp->attached_connector, ctx); - } intel_dp->detect_done = false; From patchwork Mon Sep 24 22:45:27 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Dhinakaran Pandiyan X-Patchwork-Id: 10612999 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 98B56913 for ; Mon, 24 Sep 2018 22:52:18 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 781F82A385 for ; Mon, 24 Sep 2018 22:52:18 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 6CB3A2A5F1; Mon, 24 Sep 2018 22:52:18 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 1304A2A385 for ; Mon, 24 Sep 2018 22:52:18 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 2C786895CA; Mon, 24 Sep 2018 22:52:15 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTPS id B8C858925B for ; Mon, 24 Sep 2018 22:52:13 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by fmsmga102.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 24 Sep 2018 15:52:12 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.54,299,1534834800"; d="scan'208";a="91565541" Received: from dk-thinkpad-x260.jf.intel.com ([10.54.75.54]) by fmsmga004.fm.intel.com with ESMTP; 24 Sep 2018 15:45:37 -0700 From: Dhinakaran Pandiyan To: intel-gfx@lists.freedesktop.org Date: Mon, 24 Sep 2018 15:45:27 -0700 Message-Id: <20180924224528.4744-5-dhinakaran.pandiyan@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20180924224528.4744-1-dhinakaran.pandiyan@intel.com> References: <20180924224528.4744-1-dhinakaran.pandiyan@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v2 5/6] drm/i915/dp: Kill intel_dp->detect_done flag 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: Dhinakaran Pandiyan Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP The intel_dp->detect_done flag is no more useful. Pull intel_dp_long_pulse() into the lone caller, Cc: Jani Nikula Cc: Ville Syrjälä Signed-off-by: Dhinakaran Pandiyan Reviewed-by: Ville Syrjälä --- drivers/gpu/drm/i915/intel_dp.c | 43 ++++++++------------------------ drivers/gpu/drm/i915/intel_drv.h | 1 - 2 files changed, 11 insertions(+), 33 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index 87a631098a6d..d6ea93e453a2 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -5012,15 +5012,18 @@ intel_dp_unset_edid(struct intel_dp *intel_dp) } static int -intel_dp_long_pulse(struct intel_connector *connector, - struct drm_modeset_acquire_ctx *ctx) +intel_dp_detect(struct drm_connector *connector, + struct drm_modeset_acquire_ctx *ctx, + bool force) { - struct drm_i915_private *dev_priv = to_i915(connector->base.dev); - struct intel_dp *intel_dp = intel_attached_dp(&connector->base); + struct drm_i915_private *dev_priv = to_i915(connector->dev); + struct intel_dp *intel_dp = intel_attached_dp(connector); struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base; - enum drm_connector_status status; + int status; u8 sink_irq_vector = 0; + DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", + connector->base.id, connector->name); WARN_ON(!drm_modeset_is_locked(&dev_priv->drm.mode_config.connection_mutex)); intel_display_power_get(dev_priv, intel_dp->aux_power_domain); @@ -5096,9 +5099,9 @@ intel_dp_long_pulse(struct intel_connector *connector, intel_dp->aux.i2c_defer_count = 0; intel_dp_set_edid(intel_dp); - if (intel_dp_is_edp(intel_dp) || connector->detect_edid) + if (intel_dp_is_edp(intel_dp) || + to_intel_connector(connector)->detect_edid) status = connector_status_connected; - intel_dp->detect_done = true; /* Try to read the source of the interrupt */ if (intel_dp->dpcd[DP_DPCD_REV] >= 0x11 && @@ -5123,26 +5126,6 @@ intel_dp_long_pulse(struct intel_connector *connector, return status; } -static int -intel_dp_detect(struct drm_connector *connector, - struct drm_modeset_acquire_ctx *ctx, - bool force) -{ - struct intel_dp *intel_dp = intel_attached_dp(connector); - int status = connector->status; - - DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", - connector->base.id, connector->name); - - /* If full detect is not performed yet, do a full detect */ - if (!intel_dp->detect_done) - status = intel_dp_long_pulse(intel_dp->attached_connector, ctx); - - intel_dp->detect_done = false; - - return status; -} - static void intel_dp_force(struct drm_connector *connector) { @@ -5635,7 +5618,6 @@ intel_dp_hpd_pulse(struct intel_digital_port *intel_dig_port, bool long_hpd) if (long_hpd) { intel_dp->reset_link_params = true; - intel_dp->detect_done = false; return IRQ_NONE; } @@ -5652,7 +5634,6 @@ intel_dp_hpd_pulse(struct intel_digital_port *intel_dig_port, bool long_hpd) intel_dp->is_mst = false; drm_dp_mst_topology_mgr_set_mst(&intel_dp->mst_mgr, intel_dp->is_mst); - intel_dp->detect_done = false; goto put_power; } } @@ -5665,10 +5646,8 @@ intel_dp_hpd_pulse(struct intel_digital_port *intel_dig_port, bool long_hpd) /* Short pulse can signify loss of hdcp authentication */ intel_hdcp_check_link(intel_dp->attached_connector); - if (!handled) { - intel_dp->detect_done = false; + if (!handled) goto put_power; - } } ret = IRQ_HANDLED; diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h index 8073a85d7178..a7c151c40e7d 100644 --- a/drivers/gpu/drm/i915/intel_drv.h +++ b/drivers/gpu/drm/i915/intel_drv.h @@ -1070,7 +1070,6 @@ struct intel_dp { bool link_mst; bool link_trained; bool has_audio; - bool detect_done; bool reset_link_params; enum aux_ch aux_ch; uint8_t dpcd[DP_RECEIVER_CAP_SIZE]; From patchwork Mon Sep 24 22:45:28 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Dhinakaran Pandiyan X-Patchwork-Id: 10613001 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 A2224161F for ; Mon, 24 Sep 2018 22:52:19 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 81E372A385 for ; Mon, 24 Sep 2018 22:52:19 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 767402A5F1; Mon, 24 Sep 2018 22:52:19 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-5.2 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_MED autolearn=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 2469C2A385 for ; Mon, 24 Sep 2018 22:52:19 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 4178789622; Mon, 24 Sep 2018 22:52:15 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTPS id E6C988925B for ; Mon, 24 Sep 2018 22:52:13 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga004.fm.intel.com ([10.253.24.48]) by fmsmga102.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 24 Sep 2018 15:52:13 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.54,299,1534834800"; d="scan'208";a="91565543" Received: from dk-thinkpad-x260.jf.intel.com ([10.54.75.54]) by fmsmga004.fm.intel.com with ESMTP; 24 Sep 2018 15:45:37 -0700 From: Dhinakaran Pandiyan To: intel-gfx@lists.freedesktop.org Date: Mon, 24 Sep 2018 15:45:28 -0700 Message-Id: <20180924224528.4744-6-dhinakaran.pandiyan@intel.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20180924224528.4744-1-dhinakaran.pandiyan@intel.com> References: <20180924224528.4744-1-dhinakaran.pandiyan@intel.com> Subject: [Intel-gfx] [PATCH v2 6/6] drm/i915/dp: Fix duplication of DEVICE_SERVICE_IRQ handling 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: Dhinakaran Pandiyan MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" X-Virus-Scanned: ClamAV using ClamSMTP There are two copies of the same code called from long and short pulse handlers. Signed-off-by: Dhinakaran Pandiyan Reviewed-by: José Roberto de Souza --- drivers/gpu/drm/i915/intel_dp.c | 59 ++++++++++++--------------------- 1 file changed, 22 insertions(+), 37 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c index d6ea93e453a2..64c6158feb0b 100644 --- a/drivers/gpu/drm/i915/intel_dp.c +++ b/drivers/gpu/drm/i915/intel_dp.c @@ -4038,13 +4038,6 @@ intel_dp_configure_mst(struct intel_dp *intel_dp) intel_dp->is_mst); } -static bool -intel_dp_get_sink_irq(struct intel_dp *intel_dp, u8 *sink_irq_vector) -{ - return drm_dp_dpcd_readb(&intel_dp->aux, DP_DEVICE_SERVICE_IRQ_VECTOR, - sink_irq_vector) == 1; -} - static bool intel_dp_get_sink_irq_esi(struct intel_dp *intel_dp, u8 *sink_irq_vector) { @@ -4432,6 +4425,26 @@ static bool intel_dp_hotplug(struct intel_encoder *encoder, return changed; } +static void intel_dp_check_service_irq(struct intel_dp *intel_dp) +{ + u8 val; + + if (intel_dp->dpcd[DP_DPCD_REV] < 0x11) + return; + + if (drm_dp_dpcd_readb(&intel_dp->aux, + DP_DEVICE_SERVICE_IRQ_VECTOR, &val) != 1 || !val) + return; + + drm_dp_dpcd_writeb(&intel_dp->aux, DP_DEVICE_SERVICE_IRQ_VECTOR, val); + + if (val & DP_AUTOMATED_TEST_REQUEST) + intel_dp_handle_test_request(intel_dp); + + if (val & (DP_CP_IRQ | DP_SINK_SPECIFIC_IRQ)) + DRM_DEBUG_DRIVER("CP or sink specific irq unhandled\n"); +} + /* * According to DP spec * 5.1.2: @@ -4449,7 +4462,6 @@ static bool intel_dp_short_pulse(struct intel_dp *intel_dp) { struct drm_i915_private *dev_priv = dp_to_i915(intel_dp); - u8 sink_irq_vector = 0; u8 old_sink_count = intel_dp->sink_count; bool ret; @@ -4472,20 +4484,7 @@ intel_dp_short_pulse(struct intel_dp *intel_dp) return false; } - /* Try to read the source of the interrupt */ - if (intel_dp->dpcd[DP_DPCD_REV] >= 0x11 && - intel_dp_get_sink_irq(intel_dp, &sink_irq_vector) && - sink_irq_vector != 0) { - /* Clear interrupt source */ - drm_dp_dpcd_writeb(&intel_dp->aux, - DP_DEVICE_SERVICE_IRQ_VECTOR, - sink_irq_vector); - - if (sink_irq_vector & DP_AUTOMATED_TEST_REQUEST) - intel_dp_handle_test_request(intel_dp); - if (sink_irq_vector & (DP_CP_IRQ | DP_SINK_SPECIFIC_IRQ)) - DRM_DEBUG_DRIVER("CP or sink specific irq unhandled\n"); - } + intel_dp_check_service_irq(intel_dp); /* Handle CEC interrupts, if any */ drm_dp_cec_irq(&intel_dp->aux); @@ -5020,7 +5019,6 @@ intel_dp_detect(struct drm_connector *connector, struct intel_dp *intel_dp = intel_attached_dp(connector); struct intel_encoder *encoder = &dp_to_dig_port(intel_dp)->base; int status; - u8 sink_irq_vector = 0; DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", connector->base.id, connector->name); @@ -5103,20 +5101,7 @@ intel_dp_detect(struct drm_connector *connector, to_intel_connector(connector)->detect_edid) status = connector_status_connected; - /* Try to read the source of the interrupt */ - if (intel_dp->dpcd[DP_DPCD_REV] >= 0x11 && - intel_dp_get_sink_irq(intel_dp, &sink_irq_vector) && - sink_irq_vector != 0) { - /* Clear interrupt source */ - drm_dp_dpcd_writeb(&intel_dp->aux, - DP_DEVICE_SERVICE_IRQ_VECTOR, - sink_irq_vector); - - if (sink_irq_vector & DP_AUTOMATED_TEST_REQUEST) - intel_dp_handle_test_request(intel_dp); - if (sink_irq_vector & (DP_CP_IRQ | DP_SINK_SPECIFIC_IRQ)) - DRM_DEBUG_DRIVER("CP or sink specific irq unhandled\n"); - } + intel_dp_check_service_irq(intel_dp); out: if (status != connector_status_connected && !intel_dp->is_mst)