From patchwork Fri Aug 23 20:00:36 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 821792 Received: from mx0a-0031df01.pphosted.com (mx0a-0031df01.pphosted.com [205.220.168.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1C98D1990B7; Fri, 23 Aug 2024 20:01:54 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=205.220.168.131 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724443319; cv=none; b=Jsy2ar5BmnlwZvMsLsVjRd1TxV0Mctln8/dzZgwtYGaoUpK18KkR6OEH6/xJfdYa3zdN+Dy/KV/Q58x+5+69FrnOOjNTtdVbMjQ4VRNl+xJdU+srt8ymrCzLMq3VG0iCZTn9uGtghMeVtcHAObuxy4PaCeTYqd0sCv50yrRzsJI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724443319; c=relaxed/simple; bh=QVgWaaYEEcsUT6bvDe9VM8T2WMmhn1VpGiCa8jvulI4=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=MiAy/HXX3q61+nkpzK+cgBtARvCBqXdboG8z8NzqtCqHYmMJPhKovtSANL0dvEyYWlz770nr2kpkZ6PBVVBnqqde9wK6y0gKa/SVUB/xSO9/CBoklyA3w8JWl9bH12FeO+ni7liLdLOQhiWRKNlpRq8p7TQaatxcsvEvKTTUrjI= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=quicinc.com; spf=pass smtp.mailfrom=quicinc.com; dkim=pass (2048-bit key) header.d=quicinc.com header.i=@quicinc.com header.b=VL0IF6qg; arc=none smtp.client-ip=205.220.168.131 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=quicinc.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=quicinc.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=quicinc.com header.i=@quicinc.com header.b="VL0IF6qg" Received: from pps.filterd (m0279866.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.2/8.18.1.2) with ESMTP id 47NBT0YG006773; Fri, 23 Aug 2024 20:01:17 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; h= cc:content-type:date:from:in-reply-to:message-id:mime-version :references:subject:to; s=qcppdkim1; bh=VKPJYciOWdn4CHsMb0ZGUDDG nNrSGe/49oKInxiIGdw=; b=VL0IF6qgwQQRPCnt5ow3HqsQ/dlYPyhMBEe9521R 5gxgy4V34uMve8rgpWAzeP1iDzWp/PwdCD8mRL4pI5YMNtqfB+FrcKluJlvGtcUY JE9W2cmkKB4yPYRk5/pMlWvvpj6Pc5j6F6PRgeGj/Oy2FcollxUX52vVRpGpzqC5 oFr93LuvCA0TdboACbrZ8wrIZmIIrB4jMM4IyPw1A29R+5dkp2UaHLtrsdtbKkQA mOmz0HCrlDAd/1S7c2FmGJbR1sBJEFBNxFoT546dEma/FpgbXMdC7902yoQj0iev B6p8tLceTS322ohCV4DrahU6Dy2POV1XPlQYjjIk0vxJWg== Received: from nalasppmta05.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 415bkwgy6c-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 23 Aug 2024 20:01:16 +0000 (GMT) Received: from nalasex01b.na.qualcomm.com (nalasex01b.na.qualcomm.com [10.47.209.197]) by NALASPPMTA05.qualcomm.com (8.18.1.2/8.18.1.2) with ESMTPS id 47NK1FoP001764 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Fri, 23 Aug 2024 20:01:16 GMT Received: from hu-wcheng-lv.qualcomm.com (10.49.16.6) by nalasex01b.na.qualcomm.com (10.47.209.197) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.9; Fri, 23 Aug 2024 13:01:15 -0700 From: Wesley Cheng To: , , , , , , , , , , , , , CC: , , , , , , , , Wesley Cheng Subject: [PATCH v25 08/33] usb: dwc3: Specify maximum number of XHCI interrupters Date: Fri, 23 Aug 2024 13:00:36 -0700 Message-ID: <20240823200101.26755-9-quic_wcheng@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240823200101.26755-1-quic_wcheng@quicinc.com> References: <20240823200101.26755-1-quic_wcheng@quicinc.com> Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: nalasex01a.na.qualcomm.com (10.47.209.196) To nalasex01b.na.qualcomm.com (10.47.209.197) X-QCInternal: smtphost X-Proofpoint-Virus-Version: vendor=nai engine=6200 definitions=5800 signatures=585085 X-Proofpoint-ORIG-GUID: SVS5-l8Kbcx-MCxykhGW46vtQB73-jWL X-Proofpoint-GUID: SVS5-l8Kbcx-MCxykhGW46vtQB73-jWL X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1039,Hydra:6.0.680,FMLib:17.12.28.16 definitions=2024-08-23_16,2024-08-23_01,2024-05-17_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 spamscore=0 mlxscore=0 mlxlogscore=903 bulkscore=0 malwarescore=0 priorityscore=1501 adultscore=0 phishscore=0 impostorscore=0 lowpriorityscore=0 clxscore=1015 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2407110000 definitions=main-2408230147 Allow for the DWC3 host driver to pass along XHCI property that defines how many interrupters to allocate. This is in relation for the number of event rings that can be potentially used by other processors within the system. Acked-by: Thinh Nguyen Signed-off-by: Wesley Cheng --- drivers/usb/dwc3/core.c | 12 ++++++++++++ drivers/usb/dwc3/core.h | 2 ++ drivers/usb/dwc3/host.c | 3 +++ 3 files changed, 17 insertions(+) diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index 7ee61a89520b..7aa6f9700757 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -1573,6 +1573,7 @@ static void dwc3_get_properties(struct dwc3 *dwc) u8 tx_thr_num_pkt_prd = 0; u8 tx_max_burst_prd = 0; u8 tx_fifo_resize_max_num; + u16 num_hc_interrupters; const char *usb_psy_name; int ret; @@ -1595,6 +1596,9 @@ static void dwc3_get_properties(struct dwc3 *dwc) */ tx_fifo_resize_max_num = 6; + /* default to a single XHCI interrupter */ + num_hc_interrupters = 1; + dwc->maximum_speed = usb_get_maximum_speed(dev); dwc->max_ssp_rate = usb_get_maximum_ssp_rate(dev); dwc->dr_mode = usb_get_dr_mode(dev); @@ -1648,6 +1652,12 @@ static void dwc3_get_properties(struct dwc3 *dwc) &tx_thr_num_pkt_prd); device_property_read_u8(dev, "snps,tx-max-burst-prd", &tx_max_burst_prd); + device_property_read_u16(dev, "num-hc-interrupters", + &num_hc_interrupters); + /* DWC3 core allowed to have a max of 8 interrupters */ + if (num_hc_interrupters > 8) + num_hc_interrupters = 8; + dwc->do_fifo_resize = device_property_read_bool(dev, "tx-fifo-resize"); if (dwc->do_fifo_resize) @@ -1736,6 +1746,8 @@ static void dwc3_get_properties(struct dwc3 *dwc) dwc->imod_interval = 0; dwc->tx_fifo_resize_max_num = tx_fifo_resize_max_num; + + dwc->num_hc_interrupters = num_hc_interrupters; } /* check whether the core supports IMOD */ diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h index 3781c736c1a1..95e6989d116e 100644 --- a/drivers/usb/dwc3/core.h +++ b/drivers/usb/dwc3/core.h @@ -1077,6 +1077,7 @@ struct dwc3_scratchpad_array { * @tx_max_burst_prd: max periodic ESS transmit burst size * @tx_fifo_resize_max_num: max number of fifos allocated during txfifo resize * @clear_stall_protocol: endpoint number that requires a delayed status phase + * @num_hc_interrupters: number of host controller interrupters * @hsphy_interface: "utmi" or "ulpi" * @connected: true when we're connected to a host, false otherwise * @softconnect: true when gadget connect is called, false when disconnect runs @@ -1318,6 +1319,7 @@ struct dwc3 { u8 tx_max_burst_prd; u8 tx_fifo_resize_max_num; u8 clear_stall_protocol; + u16 num_hc_interrupters; const char *hsphy_interface; diff --git a/drivers/usb/dwc3/host.c b/drivers/usb/dwc3/host.c index a171b27a7845..3e5687d6d631 100644 --- a/drivers/usb/dwc3/host.c +++ b/drivers/usb/dwc3/host.c @@ -180,6 +180,9 @@ int dwc3_host_init(struct dwc3 *dwc) if (DWC3_VER_IS_WITHIN(DWC3, ANY, 300A)) props[prop_idx++] = PROPERTY_ENTRY_BOOL("quirk-broken-port-ped"); + props[prop_idx++] = PROPERTY_ENTRY_U16("num-hc-interrupters", + dwc->num_hc_interrupters); + if (prop_idx) { ret = device_create_managed_software_node(&xhci->dev, props, NULL); if (ret) {