From patchwork Wed May 10 22:45:57 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jessica Zhang X-Patchwork-Id: 13237326 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E5409C7EE2E for ; Wed, 10 May 2023 22:46:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236082AbjEJWqj (ORCPT ); Wed, 10 May 2023 18:46:39 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47868 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236267AbjEJWqe (ORCPT ); Wed, 10 May 2023 18:46:34 -0400 Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 043E63ABA for ; Wed, 10 May 2023 15:46:32 -0700 (PDT) Received: from pps.filterd (m0279870.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 34AMhT5S010591; Wed, 10 May 2023 22:46:28 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h=from : date : subject : mime-version : content-type : content-transfer-encoding : message-id : references : in-reply-to : to : cc; s=qcppdkim1; bh=VzsN7Gy3La6QxPIpEZC7XefE1GKPHXl5fyRRtB61Pak=; b=Ym2tZhgMCiWTPvBSmRzj+VMFTMpE2FzRSCJvIlKnSYgPXVKzUIAmNIwFrEh9ZJKFd2pv MBQ5oVC14SSZ0I+iMEJC6vEGJ+zce1BZWf3KiYQenj+yuTYQkrkTNRHGYfU0K1EH25zO M0DboO1jFB9H4Sb1pFlC7gnb6wSATY20e4l/9cHHY1cjuheEH2AiUOuFdmKOF4TOoayO bHep0mgrv9OzX0K0i+Jt4Gv+GWRr69OyzJBMYbAziuvZs/nL06c5q4T4ecyaZ8Imy+ZS 0mWrMiMgAsgw2fq3p5lZ4LWnpev0bro6qZGxGXxNvpLy3Xl3UlEZJL/wlDCalCXkrBoa jw== Received: from nasanppmta03.qualcomm.com (i-global254.qualcomm.com [199.106.103.254]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3qgett0n8m-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 10 May 2023 22:46:28 +0000 Received: from nasanex01b.na.qualcomm.com (nasanex01b.na.qualcomm.com [10.46.141.250]) by NASANPPMTA03.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 34AMkRZV013656 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 10 May 2023 22:46:27 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 15.2.986.42; Wed, 10 May 2023 15:46:27 -0700 From: Jessica Zhang Date: Wed, 10 May 2023 15:45:57 -0700 Subject: [PATCH v8 6/8] drm/msm/dpu: Fix slice_last_group_size calculation MIME-Version: 1.0 Message-ID: <20230329-rfc-msm-dsc-helper-v8-6-2c9b2bb1209c@quicinc.com> References: <20230329-rfc-msm-dsc-helper-v8-0-2c9b2bb1209c@quicinc.com> In-Reply-To: <20230329-rfc-msm-dsc-helper-v8-0-2c9b2bb1209c@quicinc.com> To: CC: Marijn Suijten , Konrad Dybcio , Kuogee Hsieh , "Daniel Vetter" , Rob Clark , Abhinav Kumar , Dmitry Baryshkov , Sean Paul , , , Jessica Zhang X-Mailer: b4 0.13-dev-bfdf5 X-Developer-Signature: v=1; a=ed25519-sha256; t=1683758785; l=1214; i=quic_jesszhan@quicinc.com; s=20230329; h=from:subject:message-id; bh=l4q4Dk/9thO1KabTL7scWISmGG9y12VmtfnDtkniZmM=; b=12J7+8dT5OVxBHAOiy2B39WppH+OlO1R1uiM1aD//fHwGl6yUv05EwzOJo8vgzDl5NSqIj1si obmpY6UwS0PAJVRG5L7G1YZR7N5wF97dYQrvdB1L0QQyPjeecqYQIIj X-Developer-Key: i=quic_jesszhan@quicinc.com; a=ed25519; pk=gAUCgHZ6wTJOzQa3U0GfeCDH7iZLlqIEPo4rrjfDpWE= X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) 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: i1l4eHHNXdS_0og_zaTi_HLbsHLCzXnY X-Proofpoint-GUID: i1l4eHHNXdS_0og_zaTi_HLbsHLCzXnY X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.254,Aquarius:18.0.942,Hydra:6.0.573,FMLib:17.11.170.22 definitions=2023-05-10_04,2023-05-05_01,2023-02-09_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxlogscore=932 priorityscore=1501 bulkscore=0 impostorscore=0 mlxscore=0 lowpriorityscore=0 spamscore=0 clxscore=1015 phishscore=0 adultscore=0 suspectscore=0 malwarescore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2304280000 definitions=main-2305100188 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Correct the math for slice_last_group_size so that it matches the calculations downstream. Fixes: c110cfd1753e ("drm/msm/disp/dpu1: Add support for DSC") Reviewed-by: Dmitry Baryshkov Reviewed-by: Marijn Suijten Signed-off-by: Jessica Zhang --- drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dsc.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dsc.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dsc.c index 1e11c0fb0545..ddaec05151cd 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dsc.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dsc.c @@ -56,9 +56,10 @@ static void dpu_hw_dsc_config(struct dpu_hw_dsc *hw_dsc, if (is_cmd_mode) initial_lines += 1; - slice_last_group_size = 3 - (dsc->slice_width % 3); + slice_last_group_size = (dsc->slice_width + 2) % 3; + data = (initial_lines << 20); - data |= ((slice_last_group_size - 1) << 18); + data |= (slice_last_group_size << 18); /* bpp is 6.4 format, 4 LSBs bits are for fractional part */ data |= (dsc->bits_per_pixel << 8); data |= (dsc->block_pred_enable << 7);