From patchwork Fri Dec 16 10:21:19 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Akhil P Oommen X-Patchwork-Id: 13074883 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 6AF52C4332F for ; Fri, 16 Dec 2022 10:22:35 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 1229D10E12D; Fri, 16 Dec 2022 10:22:29 +0000 (UTC) Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) by gabe.freedesktop.org (Postfix) with ESMTPS id 0638B10E0E0; Fri, 16 Dec 2022 10:22:09 +0000 (UTC) Received: from pps.filterd (m0279872.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 2BGAAmjT002282; Fri, 16 Dec 2022 10:21:57 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h=from : to : cc : subject : date : message-id : mime-version : content-type; s=qcppdkim1; bh=7WZgQQGfLi75ZWNskFxxTaZq35gnqysSKNpwvvUbTxA=; b=SCXgLrkORiqWOfmhyNkKGkJlG+mvSM3T1zbsSLttZK8bfuykdkGyZ6k8loOWplx80w95 6W484tAQeuEpcE+BTVSM2wanLdJH2veox6GhooD8ArG7Wupm3foOkSSjTtCgy5x7h+VX Xc/h2S+/VXazNC9fwd0HKYpNCOG43LGNrS47E4hHiV12BQRVGMC8OB5EhFzRDbEltnUG T0QNigE6UcyaLMt/6UEM7i5a6fUQTFpydWSGEWMXcGOKb8+5AoispgP7KRmxNsm+moGQ nopWsJ/JiwdGhBzFgkiHbr6gM0TQHXCtt08UWgJALvTGD/vyWmbaFgn9UojBYJhIpOVq ow== Received: from nalasppmta02.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3mgpdb02cq-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 16 Dec 2022 10:21:57 +0000 Received: from nalasex01a.na.qualcomm.com (nalasex01a.na.qualcomm.com [10.47.209.196]) by NALASPPMTA02.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 2BGALubP029954 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 16 Dec 2022 10:21:56 GMT Received: from hyd-lnxbld559.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 15.2.986.36; Fri, 16 Dec 2022 02:21:47 -0800 From: Akhil P Oommen To: freedreno , , , Rob Clark , Ulf Hansson , Bjorn Andersson Subject: [PATCH v2 0/5] Improve GPU reset sequence for Adreno GPU Date: Fri, 16 Dec 2022 15:51:19 +0530 Message-ID: <1671186084-11356-1-git-send-email-quic_akhilpo@quicinc.com> X-Mailer: git-send-email 2.7.4 MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01a.na.qualcomm.com (10.52.223.231) 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-GUID: KkV3VQBqqnBlhADXXe1t6BFfV39C_5Jy X-Proofpoint-ORIG-GUID: KkV3VQBqqnBlhADXXe1t6BFfV39C_5Jy X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.923,Hydra:6.0.545,FMLib:17.11.122.1 definitions=2022-12-16_06,2022-12-15_02,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 bulkscore=0 mlxlogscore=942 phishscore=0 mlxscore=0 adultscore=0 impostorscore=0 malwarescore=0 priorityscore=1501 lowpriorityscore=0 spamscore=0 suspectscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2212070000 definitions=main-2212160091 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: , Cc: "Rafael J. Wysocki" , Akhil P Oommen , Michael Turquette , Konrad Dybcio , linux-kernel@vger.kernel.org, Pavel Machek , linux-clk@vger.kernel.org, Kevin Hilman , Andy Gross , Geert Uytterhoeven , Guenter Roeck , Len Brown , linux-pm@vger.kernel.org, Abhinav Kumar , Sean Paul , Stephen Boyd , Greg Kroah-Hartman , Douglas Anderson , Konrad Dybcio , Dmitry Baryshkov Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" This is a rework of [1] using genpd instead of 'reset' framework. As per the recommended reset sequence of Adreno gpu, we should ensure that gpucc-cx-gdsc has collapsed at hardware to reset gpu's internal hardware states. Because this gdsc is implemented as 'votable', gdsc driver doesn't poll and wait until its hw status says OFF. So use the newly introduced genpd api (dev_pm_genpd_synced_poweroff()) to provide a hint to the gdsc driver to poll for the hw status and use genpd notifier to wait from adreno gpu driver until gdsc is turned OFF. This series is rebased on top of linux-next (20221215) since the changes span multiple drivers. [1] https://patchwork.freedesktop.org/series/107507/ Changes in v2: - Minor formatting fix - Select PM_GENERIC_DOMAINS from Kconfig Akhil P Oommen (4): clk: qcom: gdsc: Support 'synced_poweroff' genpd flag drm/msm/a6xx: Vote for cx gdsc from gpu driver drm/msm/a6xx: Remove cx gdsc polling using 'reset' drm/msm/a6xx: Use genpd notifier to ensure cx-gdsc collapse Ulf Hansson (1): PM: domains: Allow a genpd consumer to require a synced power off drivers/base/power/domain.c | 23 ++++++++++++++++++ drivers/clk/qcom/gdsc.c | 11 +++++---- drivers/gpu/drm/msm/Kconfig | 1 + drivers/gpu/drm/msm/adreno/a6xx_gmu.c | 46 ++++++++++++++++++++++++++++++++--- drivers/gpu/drm/msm/adreno/a6xx_gmu.h | 7 ++++++ drivers/gpu/drm/msm/adreno/a6xx_gpu.c | 13 +++++++--- drivers/gpu/drm/msm/msm_gpu.c | 4 --- drivers/gpu/drm/msm/msm_gpu.h | 4 --- include/linux/pm_domain.h | 5 ++++ 9 files changed, 94 insertions(+), 20 deletions(-)