From patchwork Sat Feb 3 02:36:20 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 769835 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 6ABEA6AAD; Sat, 3 Feb 2024 02:37:47 +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=1706927872; cv=none; b=CYsAtOe6VqgPRXAPqae/H0Z4lj9JMKnX2MMaPCQQfuQJRROwV8GDb8BH4F5RjmzbktHULsyp/8P8ak4i48TDPVntfrGDus4TCKB4BgGWVV7QrUapYKeGztGoXARILy92RziHkIC33TFKpDsn3UY/aQdUUhxQbVKgLD1weqChomU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1706927872; c=relaxed/simple; bh=/yIRGDVuWTwN01jjLu9D99BsT38c9Fll4aPsKtVd2WA=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=YFlcfUjsW3C3UZ0j8mrS94nvvr02xE/oF3PMriuPag0JEPAZ6enSMG0IJdf9HV37c7uhECTZleaJcMH4lzYiNQp2c1Vyq1bfnZgNOJW0s6rWwfj4uUJDS2JsMs9I5LrZeIjrz/v72dies+lMwXFbJMmwMLaDqevnS8DCh7Nsp14= 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=RU6aubKo; 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="RU6aubKo" Received: from pps.filterd (m0279865.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.24/8.17.1.24) with ESMTP id 4132Uejg020357; Sat, 3 Feb 2024 02:37:27 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=b6o1DZWRuc04fm5lKH0e 0QE9KkK0X5y0QOEParzZU0g=; b=RU6aubKosZiR1M63i6bjM2PAjzm36SxcfvJZ K1LJDt4sTRNrgWynpZ8k5kOHgy3vONlx7xe21UuA2dm2exR29p2p7rQNGoo3f4P4 IbJqelOYAG9INA2MM3Qx/btMdZuXvlHK+0/fAOJWa0t5eYDdLDwE3a4ZZ9oeWi/h +/3pLukf2u17ZigbCJv8uugvOrlYVKq42ZJ0BgyKL8whQiSKT8SLdgGhznE6PpnM EPp9fOqlwclkCC2TnLGUEq+d8OiMS8uQt8P1PnskRH/FIlBxWRSIBTvN4b3DGIrA 8OYBh6p34ZSqbRpjmIM9lgngCFSXUxnCFbaXXqIfpotW7lHSbw== Received: from nalasppmta04.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3w1ceug0t3-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Sat, 03 Feb 2024 02:37:26 +0000 (GMT) Received: from nalasex01b.na.qualcomm.com (nalasex01b.na.qualcomm.com [10.47.209.197]) by NALASPPMTA04.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 4132bQBN004265 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Sat, 3 Feb 2024 02:37:26 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 15.2.1118.40; Fri, 2 Feb 2024 18:37:25 -0800 From: Wesley Cheng To: , , , , , , , , , , , , , , CC: , , , , , , , Wesley Cheng Subject: [PATCH v13 28/53] usb: dwc3: Specify maximum number of XHCI interrupters Date: Fri, 2 Feb 2024 18:36:20 -0800 Message-ID: <20240203023645.31105-29-quic_wcheng@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240203023645.31105-1-quic_wcheng@quicinc.com> References: <20240203023645.31105-1-quic_wcheng@quicinc.com> Precedence: bulk X-Mailing-List: linux-usb@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-ClientProxiedBy: nalasex01b.na.qualcomm.com (10.47.209.197) 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-GUID: C0PNp0QmzBbMQjHs211cLvhFx4ZT8LJI X-Proofpoint-ORIG-GUID: C0PNp0QmzBbMQjHs211cLvhFx4ZT8LJI X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.272,Aquarius:18.0.1011,Hydra:6.0.619,FMLib:17.11.176.26 definitions=2024-02-02_16,2024-01-31_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 priorityscore=1501 phishscore=0 malwarescore=0 adultscore=0 suspectscore=0 clxscore=1015 bulkscore=0 mlxscore=0 spamscore=0 impostorscore=0 mlxlogscore=807 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2401310000 definitions=main-2402030015 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 | 5 ++++- 3 files changed, 18 insertions(+), 1 deletion(-) diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c index 3b68e8e45b8b..7ac02339458e 100644 --- a/drivers/usb/dwc3/core.c +++ b/drivers/usb/dwc3/core.c @@ -1485,6 +1485,7 @@ 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; @@ -1507,6 +1508,9 @@ 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); @@ -1558,6 +1562,12 @@ 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) @@ -1649,6 +1659,8 @@ 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 df544ec730d2..a851ea0ea2c6 100644 --- a/drivers/usb/dwc3/core.h +++ b/drivers/usb/dwc3/core.h @@ -1068,6 +1068,7 @@ 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 @@ -1305,6 +1306,7 @@ 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 4957b9765dc5..3abf3b7d7c88 100644 --- a/drivers/usb/dwc3/host.c +++ b/drivers/usb/dwc3/host.c @@ -105,7 +105,7 @@ static int dwc3_host_get_irq(struct dwc3 *dwc) int dwc3_host_init(struct dwc3 *dwc) { - struct property_entry props[4]; + struct property_entry props[5]; struct platform_device *xhci; int ret, irq; int prop_idx = 0; @@ -158,6 +158,9 @@ 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) {