From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-9.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 6D816C10DCE for ; Thu, 12 Mar 2020 14:16:01 +0000 (UTC) Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 4BBC320650 for ; Thu, 12 Mar 2020 14:16:01 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 4BBC320650 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=intel.com Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=intel-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id EDC0A6EAD8; Thu, 12 Mar 2020 14:16:00 +0000 (UTC) Received: from mga07.intel.com (mga07.intel.com [134.134.136.100]) by gabe.freedesktop.org (Postfix) with ESMTPS id 625276EAD7 for ; Thu, 12 Mar 2020 14:15:57 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga002.jf.intel.com ([10.7.209.21]) by orsmga105.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 12 Mar 2020 07:15:57 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.70,545,1574150400"; d="scan'208";a="261515034" Received: from unknown (HELO genxfsim-desktop.iind.intel.com) ([10.223.74.178]) by orsmga002.jf.intel.com with ESMTP; 12 Mar 2020 07:15:55 -0700 From: Anshuman Gupta To: intel-gfx@lists.freedesktop.org Date: Thu, 12 Mar 2020 19:37:02 +0530 Message-Id: <20200312140702.14028-3-anshuman.gupta@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200312140702.14028-1-anshuman.gupta@intel.com> References: <20200312140702.14028-1-anshuman.gupta@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH 2/2] drm/i915: Add i915_lpsp_info debugfs X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: jani.nikula@intel.com, ankit.k.nautiyal@intel.com Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" New i915_pm_lpsp igt solution approach relies on connector specific debugfs attribute i915_lpsp_info, it exposes whether an output is capable of driving lpsp and exposes lpsp enablement info. Signed-off-by: Anshuman Gupta --- .../drm/i915/display/intel_display_debugfs.c | 65 +++++++++++++++++++ .../drm/i915/display/intel_display_power.h | 2 + 2 files changed, 67 insertions(+) diff --git a/drivers/gpu/drm/i915/display/intel_display_debugfs.c b/drivers/gpu/drm/i915/display/intel_display_debugfs.c index 1e6eb7f2f72d..16ee04368cc1 100644 --- a/drivers/gpu/drm/i915/display/intel_display_debugfs.c +++ b/drivers/gpu/drm/i915/display/intel_display_debugfs.c @@ -9,6 +9,7 @@ #include "i915_debugfs.h" #include "intel_csr.h" #include "intel_display_debugfs.h" +#include "intel_display_power.h" #include "intel_display_types.h" #include "intel_dp.h" #include "intel_fbc.h" @@ -611,6 +612,56 @@ static void intel_hdcp_info(struct seq_file *m, seq_puts(m, "\n"); } +static bool intel_have_embedded_panel(struct drm_connector *connector) +{ + return connector->connector_type == DRM_MODE_CONNECTOR_DSI || + connector->connector_type == DRM_MODE_CONNECTOR_eDP; +} + +static bool intel_have_hdmi_panel(struct drm_connector *connector) +{ + return connector->connector_type == DRM_MODE_CONNECTOR_HDMIA || + connector->connector_type == DRM_MODE_CONNECTOR_HDMIB; +} + +static void +intel_lpsp_capable_info(struct seq_file *m, struct drm_connector *connector) +{ + struct intel_encoder *encoder = + intel_attached_encoder(to_intel_connector(connector)); + struct drm_i915_private *dev_priv = to_i915(connector->dev); + bool lpsp_capable = false; + + if (IS_TIGERLAKE(dev_priv) && encoder->port <= PORT_C) { + lpsp_capable = true; + } else if (INTEL_GEN(dev_priv) >= 11 && intel_have_embedded_panel(connector)) { + lpsp_capable = true; + } else if (INTEL_GEN(dev_priv) >= 9 && (encoder->port == PORT_A && + !intel_have_hdmi_panel(connector))) { + lpsp_capable = true; + } else if (connector->connector_type == DRM_MODE_CONNECTOR_eDP) { + lpsp_capable = true; + } + + lpsp_capable ? seq_puts(m, "LPSP capable\n") : seq_puts(m, "LPSP incapable\n"); +} + +static void +intel_lpsp_enable_info(struct seq_file *m, struct drm_connector *connector) +{ + struct drm_i915_private *dev_priv = to_i915(connector->dev); + bool is_lpsp = false; + + if (INTEL_GEN(dev_priv) >= 11) + is_lpsp = !intel_display_power_well_is_enabled(dev_priv, + ICL_DISP_PW_3); + else + is_lpsp = !intel_display_power_well_is_enabled(dev_priv, + SKL_DISP_PW_2); + + is_lpsp ? seq_puts(m, "LPSP enabled\n") : seq_puts(m, "LPSP disabled\n"); +} + static void intel_dp_info(struct seq_file *m, struct intel_connector *intel_connector) { @@ -1987,6 +2038,17 @@ static int i915_hdcp_sink_capability_show(struct seq_file *m, void *data) } DEFINE_SHOW_ATTRIBUTE(i915_hdcp_sink_capability); +static int i915_lpsp_info_show(struct seq_file *m, void *data) +{ + struct drm_connector *connector = m->private; + + intel_lpsp_capable_info(m, connector); + intel_lpsp_enable_info(m, connector); + + return 0; +} +DEFINE_SHOW_ATTRIBUTE(i915_lpsp_info); + static int i915_dsc_fec_support_show(struct seq_file *m, void *data) { struct drm_connector *connector = m->private; @@ -2130,5 +2192,8 @@ int intel_connector_debugfs_add(struct drm_connector *connector) debugfs_create_file("i915_dsc_fec_support", S_IRUGO, root, connector, &i915_dsc_fec_support_fops); + debugfs_create_file("i915_lpsp_info", S_IRUGO, root, + connector, &i915_lpsp_info_fops); + return 0; } diff --git a/drivers/gpu/drm/i915/display/intel_display_power.h b/drivers/gpu/drm/i915/display/intel_display_power.h index 56cbae6327b7..14c5ad20287f 100644 --- a/drivers/gpu/drm/i915/display/intel_display_power.h +++ b/drivers/gpu/drm/i915/display/intel_display_power.h @@ -266,6 +266,8 @@ intel_display_power_domain_str(enum intel_display_power_domain domain); bool intel_display_power_is_enabled(struct drm_i915_private *dev_priv, enum intel_display_power_domain domain); +bool intel_display_power_well_is_enabled(struct drm_i915_private *dev_priv, + enum i915_power_well_id power_well_id); bool __intel_display_power_is_enabled(struct drm_i915_private *dev_priv, enum intel_display_power_domain domain); intel_wakeref_t intel_display_power_get(struct drm_i915_private *dev_priv, -- 2.25.1 _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx