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Tue, 24 Sep 2024 22:59:58 +0000 (GMT) Received: from nasanex01b.na.qualcomm.com (nasanex01b.na.qualcomm.com [10.46.141.250]) by NASANPPMTA05.qualcomm.com (8.18.1.2/8.18.1.2) with ESMTPS id 48OMxvN2007773 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 24 Sep 2024 22:59:57 GMT Received: from jesszhan-linux.qualcomm.com (10.80.80.8) by nasanex01b.na.qualcomm.com (10.46.141.250) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.9; Tue, 24 Sep 2024 15:59:57 -0700 From: Jessica Zhang Date: Tue, 24 Sep 2024 15:59:29 -0700 Subject: [PATCH v2 13/22] drm/msm/dpu: Add CWB to msm_display_topology MIME-Version: 1.0 Message-ID: <20240924-concurrent-wb-v2-13-7849f900e863@quicinc.com> References: <20240924-concurrent-wb-v2-0-7849f900e863@quicinc.com> In-Reply-To: <20240924-concurrent-wb-v2-0-7849f900e863@quicinc.com> To: Rob Clark , Dmitry Baryshkov , , Sean Paul , Marijn Suijten , "David Airlie" , Daniel Vetter , "Maarten Lankhorst" , Maxime Ripard , Thomas Zimmermann CC: , , , , , Rob Clark , =?utf-8?b?VmlsbGUgU3lyasOkbMOk?= , "Jessica Zhang" X-Mailer: b4 0.15-dev-99b12 X-Developer-Signature: v=1; a=ed25519-sha256; t=1727218793; l=2859; i=quic_jesszhan@quicinc.com; s=20230329; h=from:subject:message-id; bh=5EDvWviU4lGmDlkZJdPYKBAJs6GqlAM58iPTSGoB36Y=; b=t1wLaNKFZIeo8Fb+SSKY9xAhhtX+XK9RD5GoCQLexF2znNxlNoi1dEGU1ngFUsTZxA7jxhgvh TJc71sQR1l3Alk+pSUyigZpp2rrIuMgHyMviY8EL9Mli/ppm5GVFy9D X-Developer-Key: i=quic_jesszhan@quicinc.com; a=ed25519; pk=gAUCgHZ6wTJOzQa3U0GfeCDH7iZLlqIEPo4rrjfDpWE= X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01b.na.qualcomm.com (10.46.141.250) To nasanex01b.na.qualcomm.com (10.46.141.250) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-GUID: fEmR-oEqG9Nbb1ND9s2d4iGigJ5kkJmQ X-Proofpoint-ORIG-GUID: fEmR-oEqG9Nbb1ND9s2d4iGigJ5kkJmQ X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.60.29 definitions=2024-09-06_09,2024-09-06_01,2024-09-02_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 impostorscore=0 adultscore=0 bulkscore=0 phishscore=0 mlxlogscore=999 spamscore=0 lowpriorityscore=0 clxscore=1015 mlxscore=0 malwarescore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2408220000 definitions=main-2409240160 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" Add the cwb_enabled flag to msm_display topology and adjust the toplogy to account for concurrent writeback Signed-off-by: Jessica Zhang --- drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c | 6 ++++-- drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c | 10 ++++++++-- drivers/gpu/drm/msm/msm_drv.h | 2 ++ 3 files changed, 14 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c index d53e986eee54..a7850bf844db 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c @@ -1176,6 +1176,8 @@ static struct msm_display_topology dpu_crtc_get_topology( dpu_encoder_update_topology(drm_enc, &topology, crtc_state->state, &crtc_state->adjusted_mode); + topology.cwb_enabled = drm_crtc_in_clone_mode(crtc_state); + /* * Datapath topology selection * @@ -1189,9 +1191,9 @@ static struct msm_display_topology dpu_crtc_get_topology( * Add dspps to the reservation requirements if ctm is requested */ - if (topology.num_intf == 2) + if (topology.num_intf == 2 && !topology.cwb_enabled) topology.num_lm = 2; - else if (topology.num_dsc == 2) + else if (topology.num_dsc == 2 && !topology.cwb_enabled) topology.num_lm = 2; else if (dpu_kms->catalog->caps->has_3d_merge) topology.num_lm = (mode->hdisplay > MAX_HDISPLAY_SPLIT) ? 2 : 1; diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c index 96c80cf9f6ad..04df3056d75a 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_rm.c @@ -371,8 +371,14 @@ static int _dpu_rm_reserve_ctls( int i = 0, j, num_ctls; bool needs_split_display; - /* each hw_intf needs its own hw_ctrl to program its control path */ - num_ctls = top->num_intf; + /* + * For non-CWB mode, each hw_intf needs its own hw_ctl to program its + * control path. Hardcode num_ctls to 1 if CWB is enabled + */ + if (top->cwb_enabled) + num_ctls = 1; + else + num_ctls = top->num_intf; needs_split_display = _dpu_rm_needs_split_display(top); diff --git a/drivers/gpu/drm/msm/msm_drv.h b/drivers/gpu/drm/msm/msm_drv.h index 0d3adf398bc1..8a2a3705f117 100644 --- a/drivers/gpu/drm/msm/msm_drv.h +++ b/drivers/gpu/drm/msm/msm_drv.h @@ -1,5 +1,6 @@ /* SPDX-License-Identifier: GPL-2.0-only */ /* + * Copyright (c) 2024 Qualcomm Innovation Center, Inc. All rights reserved. * Copyright (c) 2016-2018, The Linux Foundation. All rights reserved. * Copyright (C) 2013 Red Hat * Author: Rob Clark @@ -88,6 +89,7 @@ struct msm_display_topology { u32 num_dspp; u32 num_dsc; bool needs_cdm; + bool cwb_enabled; }; /* Commit/Event thread specific structure */