From patchwork Sat Feb 17 00:09:43 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 773727 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 alsa0.perex.cz (alsa0.perex.cz [77.48.224.243]) (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 38859C48260 for ; Sat, 17 Feb 2024 00:19:45 +0000 (UTC) Received: from alsa1.perex.cz (alsa1.perex.cz [207.180.221.201]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by alsa0.perex.cz (Postfix) with ESMTPS id 79340868; Sat, 17 Feb 2024 01:19:33 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa0.perex.cz 79340868 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=alsa-project.org; s=default; t=1708129183; bh=soUlhEMLV8DNY0sLUBveVCiDs9XLA3RtItIiQZ90Sdg=; h=From:To:CC:Subject:Date:In-Reply-To:References:List-Id: List-Archive:List-Help:List-Owner:List-Post:List-Subscribe: List-Unsubscribe:From; b=T1W43gFSm+yGIZn9wZrZVfs3uLqvGwvQSvbi9eVv+4F4xuch2GI2Jjjf7qbmk1Jeg qgJdpI8Ld+0xJH0NU5BlgZn89x9ZYex1URL0YLZTO3JJp/h+cVmI/8SUqfcrzd8Vfl Uxlhiwtcmt6S5zOt2JD5T728agPJX9OMC0M64GCo= Received: by alsa1.perex.cz (Postfix, from userid 50401) id C2561F805C1; Sat, 17 Feb 2024 01:16:34 +0100 (CET) Received: from mailman-core.alsa-project.org (mailman-core.alsa-project.org [10.254.200.10]) by alsa1.perex.cz (Postfix) with ESMTP id DC870F80772; Sat, 17 Feb 2024 01:16:33 +0100 (CET) Received: by alsa1.perex.cz (Postfix, from userid 50401) id 4CD20F804CC; Sat, 17 Feb 2024 01:11:43 +0100 (CET) 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 alsa1.perex.cz (Postfix) with ESMTPS id 916CDF8057F for ; Sat, 17 Feb 2024 01:10:37 +0100 (CET) DKIM-Filter: OpenDKIM Filter v2.11.0 alsa1.perex.cz 916CDF8057F Authentication-Results: alsa1.perex.cz; dkim=pass (2048-bit key, unprotected) header.d=quicinc.com header.i=@quicinc.com header.a=rsa-sha256 header.s=qcppdkim1 header.b=nsD/o4oT Received: from pps.filterd (m0279863.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.24/8.17.1.24) with ESMTP id 41GNNKmx000823; Sat, 17 Feb 2024 00:10:35 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=8dRN7NS8PzIoGdi4HEjV 3ns3wsExyILDVgq4w72pbG4=; b=nsD/o4oTbMfLk9e8wt1okptHKE/p8k0HlKfP 0qZ/2j46isAmnjvAxREDEmm4Pz/et3/JAf5YR8gV6/KPxlU04XUSI1vTkN+CmrbY LaKmXL/TpoaGfZYD5W1krCqEQ6SInWHIDCaNsNanlWpKkAxWkfx7Qpt+OqC071O2 r3Ll9UQYF8AGBDMluZdQf9PEAnW94GIXUuHZbtM532X6cTOTSK7BQ7Wms6EteaAE D1R6Egw4OwIb4H7lqmu77b82+IGJhbum5OmeYDO++Ge4MrEm9fYWo4BQsTj5RYZw 7org0hnt+WCACasl+7BZmXete+stNfxANUdWhBiRhwFMXKiIEw== Received: from nalasppmta02.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3w9xv9j897-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Sat, 17 Feb 2024 00:10:35 +0000 (GMT) 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 41H0AYKQ012892 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Sat, 17 Feb 2024 00:10:34 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, 16 Feb 2024 16:10:34 -0800 From: Wesley Cheng To: , , , , , , , , , , , , , , CC: , , , , , , , Wesley Cheng Subject: [PATCH v17 17/51] usb: host: xhci-mem: Allow for interrupter clients to choose specific index Date: Fri, 16 Feb 2024 16:09:43 -0800 Message-ID: <20240217001017.29969-18-quic_wcheng@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240217001017.29969-1-quic_wcheng@quicinc.com> References: <20240217001017.29969-1-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-ORIG-GUID: MPGgzqC7DVBrYYTVloEbUAh1VL0TCoyn X-Proofpoint-GUID: MPGgzqC7DVBrYYTVloEbUAh1VL0TCoyn 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=2024-02-16_23,2024-02-16_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 clxscore=1015 bulkscore=0 adultscore=0 mlxscore=0 priorityscore=1501 suspectscore=0 spamscore=0 phishscore=0 lowpriorityscore=0 mlxlogscore=624 impostorscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2401310000 definitions=main-2402160189 Message-ID-Hash: BNGDCNNTWMUFLLBZJW5TB4YM23IDTDU2 X-Message-ID-Hash: BNGDCNNTWMUFLLBZJW5TB4YM23IDTDU2 X-MailFrom: quic_wcheng@quicinc.com X-Mailman-Rule-Misses: dmarc-mitigation; no-senders; approved; emergency; loop; banned-address; member-moderation; header-match-alsa-devel.alsa-project.org-0; header-match-alsa-devel.alsa-project.org-1; nonmember-moderation; administrivia; implicit-dest; max-recipients; max-size; news-moderation; no-subject; digests; suspicious-header X-Mailman-Version: 3.3.9 Precedence: list List-Id: "Alsa-devel mailing list for ALSA developers - http://www.alsa-project.org" Archived-At: List-Archive: List-Help: List-Owner: List-Post: List-Subscribe: List-Unsubscribe: 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 | 30 ++++++++++++++++-------------- drivers/usb/host/xhci-sideband.c | 4 ++-- drivers/usb/host/xhci.h | 2 +- include/linux/usb/xhci-sideband.h | 2 +- 4 files changed, 20 insertions(+), 18 deletions(-) diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c index e4c13f056c1a..ae28dac7a747 100644 --- a/drivers/usb/host/xhci-mem.c +++ b/drivers/usb/host/xhci-mem.c @@ -2360,7 +2360,7 @@ xhci_add_interrupter(struct xhci_hcd *xhci, struct xhci_interrupter *ir, } struct xhci_interrupter * -xhci_create_secondary_interrupter(struct usb_hcd *hcd, int num_seg) +xhci_create_secondary_interrupter(struct usb_hcd *hcd, int num_seg, int intr_num) { struct xhci_hcd *xhci = hcd_to_xhci(hcd); struct xhci_interrupter *ir; @@ -2375,28 +2375,30 @@ xhci_create_secondary_interrupter(struct usb_hcd *hcd, int num_seg) return NULL; spin_lock_irq(&xhci->lock); - - /* Find available secondary interrupter, interrupter 0 is reserved for primary */ + /* 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); + if (err) { + spin_unlock_irq(&xhci->lock); + goto free_ir; + } + break; + } } } - spin_unlock_irq(&xhci->lock); - if (err) { - xhci_warn(xhci, "Failed to add secondary interrupter, max interrupters %d\n", - xhci->max_interrupters); - xhci_free_interrupter(xhci, ir); - return NULL; - } - xhci_dbg(xhci, "Add secondary interrupter %d, max interrupters %d\n", i, xhci->max_interrupters); return ir; + +free_ir: + xhci_free_interrupter(xhci, ir); + + return NULL; } EXPORT_SYMBOL_GPL(xhci_create_secondary_interrupter); diff --git a/drivers/usb/host/xhci-sideband.c b/drivers/usb/host/xhci-sideband.c index 504a6f1586b5..3acbf23095e9 100644 --- a/drivers/usb/host/xhci-sideband.c +++ b/drivers/usb/host/xhci-sideband.c @@ -278,7 +278,7 @@ EXPORT_SYMBOL_GPL(xhci_sideband_enable_interrupt); */ int xhci_sideband_create_interrupter(struct xhci_sideband *sb, int num_seg, - bool ip_autoclear) + int intr_num, bool ip_autoclear) { int ret = 0; @@ -292,7 +292,7 @@ xhci_sideband_create_interrupter(struct xhci_sideband *sb, int num_seg, } sb->ir = xhci_create_secondary_interrupter(xhci_to_hcd(sb->xhci), - num_seg); + num_seg, intr_num); if (!sb->ir) { ret = -ENOMEM; goto out; diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index 92ff1cf23556..dc5f472f5501 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -1837,7 +1837,7 @@ struct xhci_container_ctx *xhci_alloc_container_ctx(struct xhci_hcd *xhci, void xhci_free_container_ctx(struct xhci_hcd *xhci, struct xhci_container_ctx *ctx); struct xhci_interrupter * -xhci_create_secondary_interrupter(struct usb_hcd *hcd, int num_seg); +xhci_create_secondary_interrupter(struct usb_hcd *hcd, int num_seg, int intr_num); void xhci_remove_secondary_interrupter(struct usb_hcd *hcd, struct xhci_interrupter *ir); void xhci_skip_sec_intr_events(struct xhci_hcd *xhci, diff --git a/include/linux/usb/xhci-sideband.h b/include/linux/usb/xhci-sideband.h index a749ae307ba7..1026502739c5 100644 --- a/include/linux/usb/xhci-sideband.h +++ b/include/linux/usb/xhci-sideband.h @@ -58,7 +58,7 @@ int xhci_sideband_enable_interrupt(struct xhci_sideband *sb, u32 imod_interval); int xhci_sideband_create_interrupter(struct xhci_sideband *sb, int num_seg, - bool ip_autoclear); + int intr_num, bool ip_autoclear); void xhci_sideband_remove_interrupter(struct xhci_sideband *sb);