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 D3DBFF3093A for ; Thu, 5 Mar 2026 11:19:12 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 90E4F10E27C; Thu, 5 Mar 2026 11:19:12 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; secure) header.d=linutronix.de header.i=@linutronix.de header.b="T8jnhV/g"; dkim=permerror (0-bit key) header.d=linutronix.de header.i=@linutronix.de header.b="s2wGBiOL"; dkim-atps=neutral Received: from galois.linutronix.de (Galois.linutronix.de [193.142.43.55]) by gabe.freedesktop.org (Postfix) with ESMTPS id C79F710E268; Thu, 5 Mar 2026 11:19:11 +0000 (UTC) Date: Thu, 5 Mar 2026 12:19:08 +0100 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020; t=1772709550; 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: in-reply-to:in-reply-to:references:references; bh=OLOVNLzkgKZr6pl7bNGGllfA0IdilTf9V2IBstJHMXA=; b=T8jnhV/g40XG8LivknAXA2L9jKfffKrA4x+FA/twWq3hm9NOP2mPYZNCKwe+76ZnRjWQDs 2JJWvHfur49km2Zsq4DM7hYMwN0E9oec1e4VQqeS6qV42jcASvV/7B3uOCQ43F8INn48nT E968kk7X6w1kXwwjDQSx4d914ekRCtJfRbiXb2bfXC66EKGeQPXCZA5i5ZvHu7An9vkaco etYZLqjjw5I3jH183WPA9g6BCOpPA2zhW457pwvkAWjIC3SX/xUidibrO7WYty9aOrLaNp 8SI9QTw3vdRIF+nYPEWjUQZ77LqH/bGjWgXcAy/C/AdAJPxzHtn3lpOtV47GEA== DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=linutronix.de; s=2020e; t=1772709550; 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: in-reply-to:in-reply-to:references:references; bh=OLOVNLzkgKZr6pl7bNGGllfA0IdilTf9V2IBstJHMXA=; b=s2wGBiOLk/C92P1XkAEBUXaztaon2ye+0MCGwIgr+AsIN1xYpdp/iRrjw5MeFCMlrDIO4z jhesiWiOHTia9wDw== From: Sebastian Andrzej Siewior To: Maarten Lankhorst Cc: intel-gfx@lists.freedesktop.org, intel-xe@lists.freedesktop.org, linux-rt-devel@lists.linux.dev, dri-devel@lists.freedesktop.org Subject: Re: [i915-rt v6 00/24] drm/i915/display: All patches to make PREEMPT_RT work on i915 + xe. Message-ID: <20260305111908.eiL2_aF1@linutronix.de> References: <20260224162703.Q_taYjEC@linutronix.de> <20260224165903.2mn24oQy@linutronix.de> <20260225075806.XNtXjZ5E@linutronix.de> <7ee8b784-a714-4329-aab2-a571f25c3baa@lankhorst.se> <20260226120715.6Ug1Qkse@linutronix.de> <20260226141942.Z6vUrEQ3@linutronix.de> <20260226143857.4ZJAFzf6@linutronix.de> <98af7aba-f86f-4ff0-a53b-60e0e9784e37@lankhorst.se> <20260305105022.cc1qAMoO@linutronix.de> <08ff34aa-acb2-4110-9dec-db6dde6edd5c@lankhorst.se> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline In-Reply-To: <08ff34aa-acb2-4110-9dec-db6dde6edd5c@lankhorst.se> 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" On 2026-03-05 12:11:50 [+0100], Maarten Lankhorst wrote: > Hey, Hi, > I think it should be possible then to remove signaler_active, and change > the reader side to if (spin_is_locked()) { spin_lock(); spin_unlock(); } ? If signaler_active is only going 0 <-> 1 then it should be doable. Let me get to this then. Sebastian