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 5DF26CD5BB1 for ; Tue, 26 May 2026 14:30:41 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id CAA3F10E6AF; Tue, 26 May 2026 14:30:36 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=fail reason="signature verification failed" (2048-bit key; unprotected) header.d=igalia.com header.i=@igalia.com header.b="auXjZYpu"; dkim-atps=neutral Received: from fanzine2.igalia.com (fanzine2.igalia.com [213.97.179.56]) by gabe.freedesktop.org (Postfix) with ESMTPS id F226310E52F; Tue, 26 May 2026 14:30:33 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=igalia.com; s=20170329; h=Content-Transfer-Encoding:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:Cc:To:From:Sender:Reply-To:Content-Type:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=MACDFw4IOQD/78AWbcz5J67dBisz2eQr1WrwY18c+CA=; b=auXjZYpunP0b5G1UMYK1lXOX0C yeQDTcVJTA53bOkvUebUhzcdPcOptcjpMrLJvqcwOKSJjFoRPMzhZBx16CS57oEviinRn84pGKlDh 2cMvJB8wJB+rHJidkNI6zCFtwxQbYOT6XnVBw4zc0jgPO6s4k3Yqy0lgZQunql16QtSqT1gzH7ApB 7N2oKlLmWPa1Gzl+/sOGlm36q+cKkJ9cE2P2AGCF1YiI0NRhpw73RBORq2jNlaOkipSawYlv+D298 IrMyJThI02MEtNVIEVZ0z4FuagbxTF6tCuoIPFWeZvOSkxM9CrTVb/n5dwV9MO0C5V9rZmRtkMpTA TixAJhSA==; Received: from [79.117.146.159] (helo=killbill.home) by fanzine2.igalia.com with esmtpsa (Cipher TLS1.3:ECDHE_X25519__RSA_PSS_RSAE_SHA256__AES_256_GCM:256) (Exim) id 1wRsn1-008TUc-96; Tue, 26 May 2026 16:29:51 +0200 From: Melissa Wen To: airlied@gmail.com, maarten.lankhorst@linux.intel.com, mripard@kernel.org, simona@ffwll.ch, tzimmermann@suse.de Cc: Alex Hung , Simon Ser , Uma Shankar , Chaitanya Kumar Borah , Xaver Hugl , Pekka Paalanen , Louis Chauvet , Matthew Schwartz , John Harrison , Rodrigo Siqueira , amd-gfx@lists.freedesktop.org, kernel-dev@igalia.com, Rob Clark , Dmitry Baryshkov , Abhinav Kumar , Jessica Zhang , Sean Paul , Marijn Suijten , linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org, intel-xe@lists.freedesktop.org, intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org Subject: [PATCH 1/3] drm/atomic: only add states of active or transient active colorops Date: Tue, 26 May 2026 16:17:08 +0200 Message-ID: <20260526142940.504911-2-mwen@igalia.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260526142940.504911-1-mwen@igalia.com> References: <20260526142940.504911-1-mwen@igalia.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Only consider affected colorop states those that are part of an active color pipeline or a pipeline that is about to be activated or deactivated in the same atomic commit, i.e., colorop is in the chain of old/new plane color pipeline property. To cover color_pipeline deactivation, remove the condition for plane_state->color_pipeline. Signed-off-by: Melissa Wen --- drivers/gpu/drm/drm_atomic.c | 67 +++++++++++++++++++++++++++++++----- 1 file changed, 58 insertions(+), 9 deletions(-) diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c index 170de30c28ae..4fb3a23e862a 100644 --- a/drivers/gpu/drm/drm_atomic.c +++ b/drivers/gpu/drm/drm_atomic.c @@ -812,6 +812,59 @@ static int drm_atomic_plane_check(const struct drm_plane_state *old_plane_state, return 0; } +/* + * This function walks old and new plane state color pipelines and adds all + * colorops in use by @plane to the atomic configuration @state. This is useful + * when an atomic commit needs to check all currently enabled or about to be + * enabled colorop on @plane, e.g. when changing the mode. This also avoids + * including colorop states that are not part of the atomic state. + * + * Returns: + * 0 on success or can fail with -EDEADLK or -ENOMEM. When the error is EDEADLK + * then the w/w mutex code has detected a deadlock and the entire atomic + * sequence must be restarted. All other errors are fatal. + */ +static int +drm_atomic_add_pipeline_colorops(struct drm_atomic_commit *state, + struct drm_plane *plane) +{ + struct drm_colorop *colorop; + struct drm_colorop_state *colorop_state; + struct drm_plane_state *new_plane_state, *old_plane_state; + + new_plane_state = drm_atomic_get_new_plane_state(state, plane); + old_plane_state = drm_atomic_get_old_plane_state(state, plane); + + if (WARN_ON(!new_plane_state || !old_plane_state)) + return -EINVAL; + + drm_dbg_atomic(plane->dev, + "Adding old+new pipeline colorops for [PLANE:%d:%s]\n", + plane->base.id, plane->name); + + for (colorop = new_plane_state->color_pipeline; + colorop; + colorop = colorop->next) { + colorop_state = drm_atomic_get_colorop_state(state, colorop); + if (IS_ERR(colorop_state)) + return PTR_ERR(colorop_state); + } + + /* Same color pipeline as new; no point walking old. */ + if (new_plane_state->color_pipeline == old_plane_state->color_pipeline) + return 0; + + for (colorop = old_plane_state->color_pipeline; + colorop; + colorop = colorop->next) { + colorop_state = drm_atomic_get_colorop_state(state, colorop); + if (IS_ERR(colorop_state)) + return PTR_ERR(colorop_state); + } + + return 0; +} + static void drm_atomic_colorop_print_state(struct drm_printer *p, const struct drm_colorop_state *state) { @@ -1591,11 +1644,9 @@ drm_atomic_add_affected_planes(struct drm_atomic_commit *state, if (IS_ERR(plane_state)) return PTR_ERR(plane_state); - if (plane_state->color_pipeline) { - ret = drm_atomic_add_affected_colorops(state, plane); - if (ret) - return ret; - } + ret = drm_atomic_add_pipeline_colorops(state, plane); + if (ret) + return ret; } return 0; } @@ -1607,10 +1658,8 @@ EXPORT_SYMBOL(drm_atomic_add_affected_planes); * @plane: DRM plane * * This function walks the current configuration and adds all colorops - * currently used by @plane to the atomic configuration @state. This is useful - * when an atomic commit also needs to check all currently enabled colorop on - * @plane, e.g. when changing the mode. It's also useful when re-enabling a plane - * to avoid special code to force-enable all colorops. + * currently used by @plane to the atomic configuration @state. It's useful + * when re-enabling a plane to avoid special code to force-enable all colorops. * * Since acquiring a colorop state will always also acquire the w/w mutex of the * current plane for that colorop (if there is any) adding all the colorop states for -- 2.53.0