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 86DCEC83F0A for ; Wed, 9 Jul 2025 19:44:50 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 0500A10E09E; Wed, 9 Jul 2025 19:44:50 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; secure) header.d=linutronix.de header.i=@linutronix.de header.b="4mMJzgB3"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="dW/vjvKL"; dkim-atps=neutral Received: from galois.linutronix.de (Galois.linutronix.de [193.142.43.55]) by gabe.freedesktop.org (Postfix) with ESMTPS id 2557E10E09E for ; Wed, 9 Jul 2025 19:44:48 +0000 (UTC) Date: Wed, 9 Jul 2025 21:44:43 +0200 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1752090285; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=YHoOTaEcM7ajLztHEUilHo8GRkm1itG9TaX4e0uEIiM=; b=4mMJzgB3ZYFoYa58PwQnNDFFy69Mqgmowu8meHS0hgzlxykU1mMRWSbSPHCUa3orQN32NW g0m/IQuyc89/3SBLRFzHWaddP1Rjr+TIylfPE6e+JIROTpEI0AlfDjFzFR9CZfHymLEy4W 5o9OlHCOco6TsQHn3jbVYM8rTUQ33q+05EEJWVM+iGIYIUS2w9IC2NHcg+JRip6ceYkbb3 0bY8lGkC07fmjk1H7jluU4HZK/xw6RkDiW8SiAiQcCyT2KmZesaqEolMfpp1zt9Hp6/SIy pbZf4F4qd60ezL2J3HvErZ7VHD15id5Z/Mu37PeqLM3oJxxIzhA+ZsWDYmP1OA== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1752090285; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=YHoOTaEcM7ajLztHEUilHo8GRkm1itG9TaX4e0uEIiM=; b=dW/vjvKLKxXOozUk6A6mqkAE9MMMR923W7eSUUEiEGX7lVfV8bDMo0+YjZKLzOC91Arel2 yuQxqjL9Uf7hGAAA== From: Sebastian Andrzej Siewior To: Ville =?utf-8?B?U3lyasOkbMOk?= Cc: Ben Hutchings , linux-rt-users@vger.kernel.org, intel-gfx@lists.freedesktop.org, Debian kernel maintainers Subject: Re: PREEMPT_RT vs i915 Message-ID: <20250709194443.lkevdn6m@linutronix.de> References: <7c42fe5a6158445e150e7d63991767e44fc36d3d.camel@decadent.org.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable In-Reply-To: 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: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" On 2025-07-09 20:30:26 [+0300], Ville Syrj=C3=A4l=C3=A4 wrote: > >=20 > > It seems like the critical uncore lock is currently held in a lot of > > places and potentially for a long time. >=20 > It shouldn't be held for that long. I think it should just be > a raw spinlock. What about I resubmit the series and we look again? I don't think the lock should be made raw just to be done with it. Sebastian