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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 1620AC7619A for ; Wed, 5 Apr 2023 14:20:02 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238533AbjDEOUA (ORCPT ); Wed, 5 Apr 2023 10:20:00 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44306 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238324AbjDEOTg (ORCPT ); Wed, 5 Apr 2023 10:19:36 -0400 Received: from mga03.intel.com (mga03.intel.com [134.134.136.65]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8181765BC for ; Wed, 5 Apr 2023 07:18:43 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1680704323; x=1712240323; h=message-id:date:mime-version:subject:to:cc:references: from:in-reply-to:content-transfer-encoding; bh=P2RqPac9TO0CaODUD6qKdkCCEU6OfG21RarkLTKjyUs=; b=S+Ah9AHQEPqLk2u/FfricfnYUX95swK1/vJFT6sAvPkgO3GlUG6dwRAn /ppiLe4S1HUbQfG7S795mrQ8c9Go7puQMx/Z3ZXyk9P8tO5xOVQq7YDVY hUYytqB9Jj+WHGjw7SfdAAzYXYQQ9wPKkMC4WBcBUyQq52CHMb5psaGbD y+IX/XZjvYzpwmbnKMWAI0WpZBKEx2GGPpF3R6/xqJTIhxcwMas1LHs3o aCUMwlDjhYn7RssqtH5fcuEY4tOMinyeh/FcvgFKZ/005HZZ+d4SBQGfP 3J+GqhEy4xPZ8NKu1c1n16D06h+jLaJPyWA97YYRogbCaJB0K+D+9P/n8 g==; X-IronPort-AV: E=McAfee;i="6600,9927,10671"; a="345042331" X-IronPort-AV: E=Sophos;i="5.98,319,1673942400"; d="scan'208";a="345042331" 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 Subject: Re: [Intel-gfx] [PATCH v2] drm/i915/gt: Hold a wakeref for the active VM Content-Language: en-US To: Jani Nikula , Joonas Lahtinen , Rodrigo Vivi , Tvrtko Ursulin , David Airlie , Daniel Vetter Cc: intel-gfx@lists.freedesktop.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Chris Wilson , Chris Wilson 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 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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