From patchwork Thu Oct 17 01:21:07 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jessica Zhang X-Patchwork-Id: 13839226 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 2A986D2F7DA for ; Thu, 17 Oct 2024 01:21:44 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 6BD8710E77E; Thu, 17 Oct 2024 01:21:39 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=quicinc.com header.i=@quicinc.com header.b="bKjgSR8V"; dkim-atps=neutral Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) by gabe.freedesktop.org (Postfix) with ESMTPS id 480F310E1AA; Thu, 17 Oct 2024 01:21:28 +0000 (UTC) Received: from pps.filterd (m0279865.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 49GFhIll000567; Thu, 17 Oct 2024 01:21:17 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h= cc:content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=qcppdkim1; bh= UWlNjiR3d49N+JeZj1nmqmbAAMvTQssU1U0PanHsQ9U=; b=bKjgSR8VcWKzkKm8 h4pHtNuPohD0mNI0+Oau9KQeZCRW9g6PAeeoMD30mWdbxPwkFKdQj6DzZMHOt6sT gleWe/MiiFz/I1kvEPRdBBCBys8Qc0v6gaPwM/DAeR2UzLl2AY52OjuFVR9XZq6Z SHF92mUFO2/9x8QlB9p6BcKKq59lFRGMicbqju1vea0NtFZJIYya9N6btcMr0UiI i1RSq/Hkxt75xtoNhwHxqaNLTe6pkkNcwG+pJnctg/Wx3HACQdUZnBBLQWsOne+u aEDgsmOGEpGRtW/sYBIc8x1LRyrqYogi126LzeL5ZmQ0gpnF0XZad+Y6XVjDHCLl 4xlalw== Received: from nasanppmta03.qualcomm.com (i-global254.qualcomm.com [199.106.103.254]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 42a8nq2x84-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 17 Oct 2024 01:21:17 +0000 (GMT) Received: from nasanex01b.na.qualcomm.com (nasanex01b.na.qualcomm.com [10.46.141.250]) by NASANPPMTA03.qualcomm.com (8.18.1.2/8.18.1.2) with ESMTPS id 49H1LG4a001370 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 17 Oct 2024 01:21:16 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; Wed, 16 Oct 2024 18:21:16 -0700 From: Jessica Zhang Date: Wed, 16 Oct 2024 18:21:07 -0700 Subject: [PATCH v3 01/23] drm: add clone mode check for CRTC MIME-Version: 1.0 Message-ID: <20241016-concurrent-wb-v3-1-a33cf9b93835@quicinc.com> References: <20241016-concurrent-wb-v3-0-a33cf9b93835@quicinc.com> In-Reply-To: <20241016-concurrent-wb-v3-0-a33cf9b93835@quicinc.com> To: Rob Clark , Dmitry Baryshkov , , Sean Paul , Marijn Suijten , "David Airlie" , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Simona Vetter , Simona Vetter CC: , , , , , Rob Clark , =?utf-8?b?VmlsbGUgU3lyasOkbMOk?= , "Jessica Zhang" X-Mailer: b4 0.15-dev-2a633 X-Developer-Signature: v=1; a=ed25519-sha256; t=1729128075; l=1915; i=quic_jesszhan@quicinc.com; s=20230329; h=from:subject:message-id; bh=kk/aNH6h0SrIeW7khzIck6nV3YxohoAAM6O3S3PqBF8=; b=/VnXMRSFefljtng0mSwBnP9+NbAiYyeTQsL7k84pzW45zmbSlFEzDzLc682KPOAOXbVqXRBpK l/RvISazKWpAUDuQ07WM1wkVf7SHPuqSdUJoRlT8jxSucWIDSt7h66X 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-ORIG-GUID: NzZWn1_lWkjahxa7jQSvNDIiypwDQcr3 X-Proofpoint-GUID: NzZWn1_lWkjahxa7jQSvNDIiypwDQcr3 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 lowpriorityscore=0 malwarescore=0 impostorscore=0 mlxlogscore=999 priorityscore=1501 suspectscore=0 adultscore=0 spamscore=0 bulkscore=0 clxscore=1015 mlxscore=0 phishscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2409260000 definitions=main-2410170008 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 a common helper to check if the given CRTC state is in clone mode. This can be used by drivers to help detect if a CRTC is being shared by multiple encoders Signed-off-by: Jessica Zhang --- NOTE: The appropriate KUnit tests will be added in a separate series --- drivers/gpu/drm/drm_crtc.c | 20 ++++++++++++++++++++ include/drm/drm_crtc.h | 2 +- 2 files changed, 21 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index 3488ff067c69bb820b36177c97bc9fe5d5cbfea1..46655339003db2a1b43441434839e26f61d79b4e 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -939,3 +939,23 @@ int drm_crtc_create_scaling_filter_property(struct drm_crtc *crtc, return 0; } EXPORT_SYMBOL(drm_crtc_create_scaling_filter_property); + +/** + * drm_crtc_in_clone_mode - check if the given CRTC state is in clone mode + * + * @crtc_state: CRTC state to check + * + * This function determines if the given CRTC state is being cloned by multiple + * encoders. + * + * RETURNS: + * True if the CRTC state is in clone mode. False otherwise + */ +bool drm_crtc_in_clone_mode(struct drm_crtc_state *crtc_state) +{ + if (!crtc_state) + return false; + + return hweight32(crtc_state->encoder_mask) > 1; +} +EXPORT_SYMBOL(drm_crtc_in_clone_mode); diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h index 8b48a1974da3143c7de176e6fe3e01da9c8fc9d8..caa56e039da2a748cf40ebf45b37158acda439d9 100644 --- a/include/drm/drm_crtc.h +++ b/include/drm/drm_crtc.h @@ -1323,5 +1323,5 @@ static inline struct drm_crtc *drm_crtc_find(struct drm_device *dev, int drm_crtc_create_scaling_filter_property(struct drm_crtc *crtc, unsigned int supported_filters); - +bool drm_crtc_in_clone_mode(struct drm_crtc_state *crtc_state); #endif /* __DRM_CRTC_H__ */