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 1B811CF6AB8 for ; Thu, 8 Jan 2026 09:45:25 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id C933610E6CD; Thu, 8 Jan 2026 09:45:24 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="J4cPoHTA"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.15]) by gabe.freedesktop.org (Postfix) with ESMTPS id B282B10E6DE; Thu, 8 Jan 2026 09:45:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1767865524; x=1799401524; h=from:date:subject:mime-version:content-transfer-encoding: message-id:references:in-reply-to:to:cc; bh=PJ1YeZPHXRZFKuD9o0jlPfDlSub58UVNGRK4ZIDCgx0=; b=J4cPoHTAfS1JXpZszl2FYNu86a1yMRnZuG1q/CHH1CYjZZQtgsfQ+FlN GuItiVyYQ+Stl4tqsWUZwgk+y+KDTagLJB6uHbJgNNLDLiSxgDUr/GMCS 8AkzMJ9ixgPBDfgW7l6XDkwfpyEZKZWpPDhxubSaXmEmEDkM9oKEfDCI/ pDEGqUw/WEE7rIhSRIQH+aAg54rRE2ATMkHOMGX43HXDkOCHKNZObie6K RnPzQnJF3q3MVDWaN1K/rCdY0JSJMxDzmRU7H1kUMoXM6D3I7rZxvjoZZ cI+FbwBsUORH1gq3+ZL1i5wXmYQT55eSJh9PiYrSjG6bQhBnz8+DZZYIv A==; X-CSE-ConnectionGUID: h+Bo4MbIQnKBv54PZ+25eQ== X-CSE-MsgGUID: QjlLTLZKShWRs7xyG6If0w== X-IronPort-AV: E=McAfee;i="6800,10657,11664"; a="72876607" X-IronPort-AV: E=Sophos;i="6.21,210,1763452800"; d="scan'208";a="72876607" Received: from orviesa005.jf.intel.com ([10.64.159.145]) by orvoesa107.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 Jan 2026 01:45:24 -0800 X-CSE-ConnectionGUID: gUHGIc1FTV6B63s0eXcZ+w== X-CSE-MsgGUID: V9ZzUbYOTOG0quQU1/4zFA== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,210,1763452800"; d="scan'208";a="208232176" Received: from srr4-3-linux-106-armuthy.iind.intel.com ([10.190.238.56]) by orviesa005.jf.intel.com with ESMTP; 08 Jan 2026 01:45:19 -0800 From: Arun R Murthy Date: Thu, 08 Jan 2026 15:13:26 +0530 Subject: [PATCH [RFC] v3 5/7] drm/atomic: Allow planes with NULL fb along with async flip MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20260108-async-v3-5-e7730c3fe9ff@intel.com> References: <20260108-async-v3-0-e7730c3fe9ff@intel.com> In-Reply-To: <20260108-async-v3-0-e7730c3fe9ff@intel.com> To: Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Jani Nikula , Rodrigo Vivi , Joonas Lahtinen , Tvrtko Ursulin , xaver.hugl@kde.org, andrealmeid@igalia.com, naveen1.kumar@intel.com, ville.syrjala@intel.com, Dmitry Baryshkov Cc: dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org, intel-xe@lists.freedesktop.org, Arun R Murthy X-Mailer: b4 0.15-dev 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" Along with async flip if there is a request to disable a sync plane by providing a NULL fb allow them. Signed-off-by: Arun R Murthy --- drivers/gpu/drm/drm_atomic.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c index fc938ea467e239edd6be77b7467c45ac8c8379fd..f0718a26e441ec1c9e118503936cb597211835e9 100644 --- a/drivers/gpu/drm/drm_atomic.c +++ b/drivers/gpu/drm/drm_atomic.c @@ -718,7 +718,9 @@ static int drm_atomic_plane_async_check(const struct drm_plane_state *old_plane_ struct drm_crtc *crtc = new_plane_state->crtc; struct drm_crtc_state *new_crtc_state = crtc->state; - if (!new_plane_state->async_flip) + if (new_crtc_state->async_flip && new_plane_state->fb == 0) + return 0; + else if (!new_plane_state->async_flip && !new_crtc_state->async_flip) return 0; /* -- 2.25.1