From patchwork Sat Sep 16 00:09:58 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 724018 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 B1AFCC2BA1A for ; Sat, 16 Sep 2023 00:12:10 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S238313AbjIPALy (ORCPT ); Fri, 15 Sep 2023 20:11:54 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:54506 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238230AbjIPALY (ORCPT ); Fri, 15 Sep 2023 20:11:24 -0400 Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 8F1D1271C; Fri, 15 Sep 2023 17:11:19 -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 38G08uqw016130; Sat, 16 Sep 2023 00:11:04 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=r31eiFMh/CBoLoST6JeTG7QMm3NUYna5E/5qOM98ZVk=; b=Ehl4oQQy8IdbUaFRjwUIM1M517zfxpXxNrdkdPjQtEvwc8gHVzA9rbQF+wzFl56/O0ym qCmkR7Bet5QF5k3dWVp+Nugv9ru6x6iuNGGiUnymsKl21XIuHtKd1ZdEIPF8KE6qFjnN ZPFyciSaYOJOdmbFZebS/ALgx8H1dOQHNOL4SFIkKNEgsuXUj+PLIePzuOvrveaG1ydG 3UaLiDOdsh0x38VLustWjmLmUJ9idze4nPch2fMZ/5N/midhYYmbhV2wb+A0DShAT9Dp 7wd1WJdHB1GpEvssY3JqTnoKFkKmvYcpc79ol/brNlJCPDjT2/nY0KxOI2OHFHi/xru6 jg== Received: from nalasppmta02.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3t4g3naede-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Sat, 16 Sep 2023 00:11:03 +0000 Received: from nalasex01b.na.qualcomm.com (nalasex01b.na.qualcomm.com [10.47.209.197]) by NALASPPMTA02.qualcomm.com (8.17.1.5/8.17.1.5) with ESMTPS id 38G0Acuj011914 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Sat, 16 Sep 2023 00:10:38 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 15.2.1118.36; Fri, 15 Sep 2023 17:10:37 -0700 From: Wesley Cheng To: , , , , , , , , , , , , , , CC: , , , , , Wesley Cheng Subject: [PATCH v6 05/33] usb: host: xhci-mem: Allow for interrupter clients to choose specific index Date: Fri, 15 Sep 2023 17:09:58 -0700 Message-ID: <20230916001026.315-6-quic_wcheng@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20230916001026.315-1-quic_wcheng@quicinc.com> References: <20230916001026.315-1-quic_wcheng@quicinc.com> MIME-Version: 1.0 X-Originating-IP: [10.49.16.6] 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-GUID: jbxhSJRfeLii97HbrsFb9aMmd_Hkp7n9 X-Proofpoint-ORIG-GUID: jbxhSJRfeLii97HbrsFb9aMmd_Hkp7n9 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.267,Aquarius:18.0.980,Hydra:6.0.601,FMLib:17.11.176.26 definitions=2023-09-15_20,2023-09-15_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 priorityscore=1501 malwarescore=0 phishscore=0 spamscore=0 impostorscore=0 lowpriorityscore=0 bulkscore=0 clxscore=1015 mlxscore=0 mlxlogscore=471 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2308100000 definitions=main-2309160000 Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org Some clients may operate only on a specific XHCI interrupter instance. Allow for the associated class driver to request for the interrupter that it requires. Signed-off-by: Wesley Cheng --- drivers/usb/host/xhci-mem.c | 12 ++++++------ include/linux/usb/xhci-intr.h | 2 +- 2 files changed, 7 insertions(+), 7 deletions(-) diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c index 94cbc25e77ca..9d07aea34fc6 100644 --- a/drivers/usb/host/xhci-mem.c +++ b/drivers/usb/host/xhci-mem.c @@ -2328,7 +2328,7 @@ xhci_add_interrupter(struct xhci_hcd *xhci, struct xhci_interrupter *ir, } struct xhci_interrupter * -xhci_create_secondary_interrupter(struct usb_hcd *hcd) +xhci_create_secondary_interrupter(struct usb_hcd *hcd, int intr_num) { struct xhci_hcd *xhci = hcd_to_xhci(hcd); struct xhci_interrupter *ir; @@ -2343,15 +2343,15 @@ xhci_create_secondary_interrupter(struct usb_hcd *hcd) return NULL; spin_lock_irq(&xhci->lock); - /* Find available secondary interrupter, interrupter 0 is reserverd for primary */ for (i = 1; i < xhci->max_interrupters; i++) { - if (xhci->interrupters[i] == NULL) { - err = xhci_add_interrupter(xhci, ir, i); - break; + if ((intr_num > 0 && i == intr_num) || intr_num <= 0) { + if (xhci->interrupters[i] == NULL) { + err = xhci_add_interrupter(xhci, ir, i); + break; + } } } - spin_unlock_irq(&xhci->lock); if (err) { xhci_warn(xhci, "Failed to add secondary interrupter, max interrupters %d\n", diff --git a/include/linux/usb/xhci-intr.h b/include/linux/usb/xhci-intr.h index e0091ee2c73a..738b0f0481a6 100644 --- a/include/linux/usb/xhci-intr.h +++ b/include/linux/usb/xhci-intr.h @@ -81,6 +81,6 @@ struct xhci_interrupter { }; struct xhci_interrupter * -xhci_create_secondary_interrupter(struct usb_hcd *hcd); +xhci_create_secondary_interrupter(struct usb_hcd *hcd, int intr_num); void xhci_remove_secondary_interrupter(struct usb_hcd *hcd, struct xhci_interrupter *ir); #endif