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 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 smtp.lore.kernel.org (Postfix) with ESMTPS id B1686C624A4 for ; Thu, 3 Sep 2026 08:04:37 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 4386910F441; Thu, 3 Sep 2026 08:04:37 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="a3YINmHu"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.14]) by gabe.freedesktop.org (Postfix) with ESMTPS id 8183710E65C; Thu, 3 Sep 2026 08:04:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1788422676; x=1819958676; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=mb297ijjnZMkjE10oeAD/5IJ1WZ3Zmfat32Sc7y5rUw=; b=a3YINmHu5n1hkks3tZLrfIMO/Mn+PiYWKVTnhrY7+A6FLtlQjLufCxDE BmoQJ9TfKYRm/FS6INMjDey2+aOQW//7h/a4+4R5s6lDetEZhEbHdmSSx 7BQK6n85D48B/1AmKOrf4Go4vkTDNEOJK7eXvtVoqHwo8WnBReYK1tGOW tsPbWeOkGzvtzgJ3Vc/1hnm6U3AjBw4wy9CCy3EChc4YJBoR5uTTjOOQg pYWeZX9R1AUgruP4GpO4s5tCYyfnOMlYjIsH+Y8d40X9lnDTxTJ3zGeP5 M+4gCIvX9BhMYwd0yINnE/piUgt3UYSPSl8gPcIxg7GfGp6le/sfL8TlG g==; X-CSE-ConnectionGUID: i+IoDNOVTGG63xEO70vuKA== X-CSE-MsgGUID: rzJAEdhJTfOvGPx9AwO/Pg== X-IronPort-AV: E=McAfee;i="6800,10657,11894"; a="88919214" X-IronPort-AV: E=Sophos;i="6.25,258,1779174000"; d="scan'208";a="88919214" Received: from fmviesa007.fm.intel.com ([10.60.135.147]) by fmvoesa108.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 Sep 2026 01:04:35 -0700 X-CSE-ConnectionGUID: Dl4Ls+PTSIG3AcsZmUMn1g== X-CSE-MsgGUID: DEs40moQSoq4frsl7GaQ6Q== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.25,258,1779174000"; d="scan'208";a="266397375" Received: from egrumbac-mobl6.ger.corp.intel.com (HELO vgovind2-mobl4.intel.com) ([10.245.250.156]) by fmviesa007-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 03 Sep 2026 01:04:33 -0700 From: Vinod Govindapillai To: intel-xe@lists.freedesktop.org, intel-gfx@lists.freedesktop.org Cc: vinod.govindapillai@intel.com, imre.deak@intel.com, jouni.hogander@intel.com Subject: [PATCH v2 2/5] drm/i915/hotplug: add helpers to track HPDs can generate PME Date: Thu, 3 Sep 2026 11:04:07 +0300 Message-ID: <20260903080410.489411-3-vinod.govindapillai@intel.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20260903080410.489411-1-vinod.govindapillai@intel.com> References: <20260903080410.489411-1-vinod.govindapillai@intel.com> MIME-Version: 1.0 Organization: Intel Finland Oy - BIC 0357606-4 - c/o Alberga Business Park, 6 krs Bertel Jungin Aukio 5, 02600 Espoo Content-Transfer-Encoding: 8bit X-BeenThere: intel-xe@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel Xe graphics driver List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-xe-bounces@lists.freedesktop.org Sender: "Intel-xe" As NVL+ devices can generate PME from HPDs, introduce a flag to keep track of such a capability and helper functions to access this flag. This flag will be set to true from runtime pm functions if device is capable of wakeup from HPDs. This is a place holder for the flag and it will be used for conditional IRQ resets and HPD polling on suspend. Bspec: 52979, 52980, 68857, 68867, 68970 Assisted-by: GitHub_Copilot:claude-opus-5 Signed-off-by: Vinod Govindapillai --- drivers/gpu/drm/i915/display/intel_display_core.h | 2 ++ drivers/gpu/drm/i915/display/intel_hotplug.c | 10 ++++++++++ drivers/gpu/drm/i915/display/intel_hotplug.h | 3 +++ 3 files changed, 15 insertions(+) diff --git a/drivers/gpu/drm/i915/display/intel_display_core.h b/drivers/gpu/drm/i915/display/intel_display_core.h index 7e988b7b1fe7..30b6f2524dee 100644 --- a/drivers/gpu/drm/i915/display/intel_display_core.h +++ b/drivers/gpu/drm/i915/display/intel_display_core.h @@ -220,6 +220,8 @@ struct intel_hotplug { * cue to ignore the long HPDs and can be set / unset using debugfs. */ bool ignore_long_hpd; + + bool can_generate_pme; }; struct intel_vbt_data { diff --git a/drivers/gpu/drm/i915/display/intel_hotplug.c b/drivers/gpu/drm/i915/display/intel_hotplug.c index 970aa95ee344..b24c9f360e24 100644 --- a/drivers/gpu/drm/i915/display/intel_hotplug.c +++ b/drivers/gpu/drm/i915/display/intel_hotplug.c @@ -846,6 +846,16 @@ static void i915_hpd_poll_init_work(struct work_struct *work) } } +void intel_hpd_set_pme_capable(struct intel_display *display, bool can_generate_pme) +{ + display->hotplug.can_generate_pme = can_generate_pme; +} + +bool intel_hpd_can_generate_pme(struct intel_display *display) +{ + return display->hotplug.can_generate_pme; +} + /** * intel_hpd_poll_enable - enable polling for connectors with hpd * @display: display device instance diff --git a/drivers/gpu/drm/i915/display/intel_hotplug.h b/drivers/gpu/drm/i915/display/intel_hotplug.h index edc41c9d3d65..c57e30f8366b 100644 --- a/drivers/gpu/drm/i915/display/intel_hotplug.h +++ b/drivers/gpu/drm/i915/display/intel_hotplug.h @@ -35,4 +35,7 @@ void intel_hpd_enable_detection_work(struct intel_display *display); void intel_hpd_disable_detection_work(struct intel_display *display); bool intel_hpd_schedule_detection(struct intel_display *display); +void intel_hpd_set_pme_capable(struct intel_display *display, bool can_generate_pme); +bool intel_hpd_can_generate_pme(struct intel_display *display); + #endif /* __INTEL_HOTPLUG_H__ */ -- 2.43.0