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 D774DC76188 for ; Wed, 5 Apr 2023 14:16:26 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id BA2C310E98F; Wed, 5 Apr 2023 14:16:25 +0000 (UTC) Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) by gabe.freedesktop.org (Postfix) with ESMTPS id B47B410E98D; Wed, 5 Apr 2023 14:16:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1680704182; x=1712240182; h=message-id:date:mime-version:subject:to:cc:references: from:in-reply-to:content-transfer-encoding; bh=P2RqPac9TO0CaODUD6qKdkCCEU6OfG21RarkLTKjyUs=; b=W8AvfdDR5dHgYrDDLq0GhnVBH5i8mjdbUHknt8yhTEV+OFCoPniz2wpH 9nOGwSAgxMFdeV3VVdZYjki6Gqoosdm5wByVz91ZX6sjLz6i0dQ6hCAHh j47zFzg0DZm4Les6Z9Q4970F+2BTtKLRzW2Cp3ZLtXJkGQoASY9jpz81B Hb3x9toT/3hA1qMqz4n/IRaHuYuK/LUnw+MLgLJ9tgGtRzcvvsnW9A/N6 pdF9vt76CzDzCGjBbBJMm8lrumH8qgEIS23eGGBO/be2w7vVCqld8XgDW /DKO8FY3zqlAvXICrqVxifPD2wthVvznK0mHdfelOv2kiWQZ3pYKrPn8j w==; X-IronPort-AV: E=McAfee;i="6600,9927,10671"; a="345042334" X-IronPort-AV: E=Sophos;i="5.98,319,1673942400"; d="scan'208";a="345042334" Received: from orsmga006.jf.intel.com ([10.7.209.51]) by orsmga103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 05 Apr 2023 07:16:20 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10671"; a="664052961" X-IronPort-AV: E=Sophos;i="5.98,319,1673942400"; d="scan'208";a="664052961" Received: from ahajda-mobl.ger.corp.intel.com (HELO [10.213.30.7]) ([10.213.30.7]) by orsmga006-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 05 Apr 2023 07:16:16 -0700 Message-ID: <50dce146-f7b0-89ff-34f6-d0ddbda4c158@intel.com> Date: Wed, 5 Apr 2023 16:16:14 +0200 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:102.0) Gecko/20100101 Firefox/102.0 Thunderbird/102.9.1 Content-Language: en-US To: Jani Nikula , Joonas Lahtinen , Rodrigo Vivi , Tvrtko Ursulin , David Airlie , Daniel Vetter References: <20230330-hold_wakeref_for_active_vm-v2-1-724d201499c2@intel.com> From: Andrzej Hajda Organization: Intel Technology Poland sp. z o.o. - ul. Slowackiego 173, 80-298 Gdansk - KRS 101882 - NIP 957-07-52-316 In-Reply-To: <20230330-hold_wakeref_for_active_vm-v2-1-724d201499c2@intel.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Subject: Re: [Intel-gfx] [PATCH v2] drm/i915/gt: Hold a wakeref for the active VM 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: intel-gfx@lists.freedesktop.org, Chris Wilson , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Chris Wilson Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" On 31.03.2023 16:16, Andrzej Hajda wrote: > From: Chris Wilson > > There may be a disconnect between the GT used by the engine and the GT > used for the VM, requiring us to hold a wakeref on both while the GPU is > active with this request. > > v2: added explanation to __queue_and_release_pm > > Signed-off-by: Chris Wilson > [ahajda: removed not-yet-upstremed wakeref tracking bits] > Signed-off-by: Andrzej Hajda Queued. Regards Andrzej