From patchwork Fri May 12 18:00:19 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kuogee Hsieh X-Patchwork-Id: 682610 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 02915C7EE2E for ; Fri, 12 May 2023 18:00:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S237708AbjELSAz (ORCPT ); Fri, 12 May 2023 14:00:55 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50754 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238025AbjELSAv (ORCPT ); Fri, 12 May 2023 14:00:51 -0400 Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 1889D170F; Fri, 12 May 2023 11:00:50 -0700 (PDT) Received: from pps.filterd (m0279873.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 34CEd0kB009563; Fri, 12 May 2023 18:00:40 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-type; s=qcppdkim1; bh=ZluKuzLdZV4GHizD1T3TTMsSimBTjFQ563W+ab84WuA=; b=J6tpliG4CkntyzZ+uiHPuhEv9TTi4pJRA8OjnaCrFQivJLVpFIEzLmW1KqODZzzyE9fI 76oT7ClEWptRXJhVYJzRXZ8D2W8wN3XAJzBt9oz4gjBy7ZqFlhXsm+7jM4XB8QgHmXsQ QSyfg9AS1t1oR9nvmBUKtOfbfP0wS+KULjVPRTS/vaGY/EtZp93eDvT9dhQYGU865Ujm u/7+BUGudaJmBlztO13dM9AHnF0xSKHFmHGDxNtgsLNS0/CZ8E/7CqRGvdN0W3kho5ak 3UEsYAHsQytON18Oa5pId9iOIkSy3A7r36Wjn7qxz2Xty5Bg152iAc6Ru3Ohf8b2HicO yw== Received: from nalasppmta03.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3qhj9s15xk-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 12 May 2023 18:00:40 +0000 Received: from nalasex01a.na.qualcomm.com (nalasex01a.na.qualcomm.com [10.47.209.196]) by NALASPPMTA03.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 34CI0d26002735 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 12 May 2023 18:00:39 GMT Received: from khsieh-linux1.qualcomm.com (10.80.80.8) by nalasex01a.na.qualcomm.com (10.47.209.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.42; Fri, 12 May 2023 11:00:38 -0700 From: Kuogee Hsieh To: , , , , , , , , , , CC: Kuogee Hsieh , , , , , , , Subject: [PATCH v8 4/8] drm/msm/dpu: Introduce PINGPONG_NONE to disconnect DSC from PINGPONG Date: Fri, 12 May 2023 11:00:19 -0700 Message-ID: <1683914423-17612-5-git-send-email-quic_khsieh@quicinc.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1683914423-17612-1-git-send-email-quic_khsieh@quicinc.com> References: <1683914423-17612-1-git-send-email-quic_khsieh@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01b.na.qualcomm.com (10.46.141.250) To nalasex01a.na.qualcomm.com (10.47.209.196) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-ORIG-GUID: b-Z602_DpnxeCq_rKyV1TQG2_Ct9_hc8 X-Proofpoint-GUID: b-Z602_DpnxeCq_rKyV1TQG2_Ct9_hc8 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=2023-05-12_10,2023-05-05_01,2023-02-09_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 mlxlogscore=999 mlxscore=0 adultscore=0 clxscore=1015 phishscore=0 lowpriorityscore=0 suspectscore=0 bulkscore=0 malwarescore=0 impostorscore=0 priorityscore=1501 spamscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2304280000 definitions=main-2305120150 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Disabling the crossbar mux between DSC and PINGPONG currently requires a bogus enum dpu_pingpong value to be passed when calling dsc_bind_pingpong_blk() with enable=false, even though the register value written is independent of the current PINGPONG block. Replace that `bool enable` parameter with a new PINGPONG_NONE dpu_pingpong flag that triggers the write of the "special" 0xF "crossbar disabled" value to the register instead. Changes in v4: -- more details to commit text Changes in v5: -- rewording commit text suggested by Marijn -- add DRM_DEBUG_KMS for DSC unbinding case Changes in v8: -- fix checkpatch warning Signed-off-by: Kuogee Hsieh Reviewed-by: Dmitry Baryshkov Reviewed-by: Marijn Suijten --- drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 2 +- drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dsc.c | 14 +++++++------- drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dsc.h | 1 - drivers/gpu/drm/msm/disp/dpu1/dpu_hw_mdss.h | 3 ++- 4 files changed, 10 insertions(+), 10 deletions(-) diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c index cf1de5d..ffa6f04 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c @@ -1850,7 +1850,7 @@ static void dpu_encoder_dsc_pipe_cfg(struct dpu_hw_dsc *hw_dsc, hw_pp->ops.setup_dsc(hw_pp); if (hw_dsc->ops.dsc_bind_pingpong_blk) - hw_dsc->ops.dsc_bind_pingpong_blk(hw_dsc, true, hw_pp->idx); + hw_dsc->ops.dsc_bind_pingpong_blk(hw_dsc, hw_pp->idx); if (hw_pp->ops.enable_dsc) hw_pp->ops.enable_dsc(hw_pp); 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 4a6bbcc..f134fb0 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dsc.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dsc.c @@ -157,7 +157,6 @@ static void dpu_hw_dsc_config_thresh(struct dpu_hw_dsc *hw_dsc, static void dpu_hw_dsc_bind_pingpong_blk( struct dpu_hw_dsc *hw_dsc, - bool enable, const enum dpu_pingpong pp) { struct dpu_hw_blk_reg_map *c = &hw_dsc->hw; @@ -166,14 +165,15 @@ static void dpu_hw_dsc_bind_pingpong_blk( dsc_ctl_offset = DSC_CTL(hw_dsc->idx); - if (enable) + if (pp) mux_cfg = (pp - PINGPONG_0) & 0x7; - DRM_DEBUG_KMS("%s dsc:%d %s pp:%d\n", - enable ? "Binding" : "Unbinding", - hw_dsc->idx - DSC_0, - enable ? "to" : "from", - pp - PINGPONG_0); + if (pp) + DRM_DEBUG_KMS("Binding dsc:%d to pp:%d\n", + hw_dsc->idx - DSC_0, pp - PINGPONG_0); + else + DRM_DEBUG_KMS("Unbinding dsc:%d from any pp\n", + hw_dsc->idx - DSC_0); DPU_REG_WRITE(c, dsc_ctl_offset, mux_cfg); } diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dsc.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dsc.h index 287ec5f..138080a 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dsc.h +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_dsc.h @@ -44,7 +44,6 @@ struct dpu_hw_dsc_ops { struct drm_dsc_config *dsc); void (*dsc_bind_pingpong_blk)(struct dpu_hw_dsc *hw_dsc, - bool enable, enum dpu_pingpong pp); }; diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_mdss.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_mdss.h index 1913a19..02a0f48 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_mdss.h +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_mdss.h @@ -191,7 +191,8 @@ enum dpu_dsc { }; enum dpu_pingpong { - PINGPONG_0 = 1, + PINGPONG_NONE, + PINGPONG_0, PINGPONG_1, PINGPONG_2, PINGPONG_3,