From patchwork Wed Feb 28 01:35:40 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wesley Cheng X-Patchwork-Id: 13574732 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 CD72E1FA3; Wed, 28 Feb 2024 01:36:50 +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=1709084212; cv=none; b=ZeShH/jxRnbIsXVYCFcthAfs5WOGtS1it1X2DFuGIfvOandm0HAPXhhiGLiCSzVKPysRmdPOfxsvGYmxurNIlAD9rsDK4Yz+oHULO6+WmLmkKeG+SBIHr9X6jtUwC+DxUYbeBptD9E8y3CpBBJ2aCxIhNjz/MUrxgvGwsS0iKKI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1709084212; c=relaxed/simple; bh=PPfBx+CV5bDfqCP66p/XGcuElNdd/Oy2AlEnS1Ijf7Q=; h=From:To:CC:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=ZkdWQN1AJGncp2qf93XAc+8qFq0jVnoo5RdnL0jm33e2vH5watpsW1oGnp2pkiTfNcVeP2DTstWYskkfk6P1SagMZLy8gjBiAchSBpLZKHhirg7Re+DvuYavKCGzmFzcoPRa3rSxhooN5ASuihwL7I6Czh9pfUnI69Frk5sxe00= 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=IIr56FtS; 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="IIr56FtS" Received: from pps.filterd (m0279862.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.17.1.24/8.17.1.24) with ESMTP id 41S0WvB3018548; Wed, 28 Feb 2024 01:36:31 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=YGr4ptvXDBE+aeU+gZ8Z 8bhVE9Vb8xrnm4DY00/Y8Hs=; b=IIr56FtS91oYhPWS8HA/FZn7w6qbcJ8PTVoj J3SeSuDvK4FWI8L+d1vdBe1A46nkuVGjtNhdWIVd06KMPq9dF3HCNq31IgBYCZIh QhscCfAdiw3UveFP8GHpxitZp4Xsq9uiRW9iJmXEvkfOBZ7IPMOoAsXAUeozjZhI q312ixThhWQKCbhstJ3LdZRx05Jnhjr3AG4Y5X5KeKMhmRQkrFuOGPu9p2XVHrdF EpHE5aalwFD4huYiOVcLEXzjydqpDRXtrOPurIDnre1womC0Jdr/I7PSxqU8sWR5 lBfxOE7H6iWBGW16ui4zq/PFjuWGkdVW+D0LR+WeJPonyyVD0w== Received: from nalasppmta02.qualcomm.com (Global_NAT1.qualcomm.com [129.46.96.20]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 3whtbw836t-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 28 Feb 2024 01:36:31 +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 41S1aUJC025294 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 28 Feb 2024 01:36:30 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; Tue, 27 Feb 2024 17:36:29 -0800 From: Wesley Cheng To: , , , , , , , , , , , , , , CC: , , , , , , , Wesley Cheng Subject: [PATCH v18 02/41] usb: host: xhci: Export enable and disable interrupter APIs Date: Tue, 27 Feb 2024 17:35:40 -0800 Message-ID: <20240228013619.29758-3-quic_wcheng@quicinc.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20240228013619.29758-1-quic_wcheng@quicinc.com> References: <20240228013619.29758-1-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: rn_m8xPahI5TKHb-SYkfZEP6oOcC6TDM X-Proofpoint-ORIG-GUID: rn_m8xPahI5TKHb-SYkfZEP6oOcC6TDM 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=2024-02-27_11,2024-02-27_01,2023-05-22_02 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 adultscore=0 phishscore=0 suspectscore=0 priorityscore=1501 impostorscore=0 malwarescore=0 spamscore=0 mlxlogscore=650 lowpriorityscore=0 mlxscore=0 bulkscore=0 clxscore=1015 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.19.0-2402120000 definitions=main-2402280010 Secondary interrupters can be OS owned, so expose the enable and disable interrupter APIs, so that the interrupts can be configured as requested depending on the client. Signed-off-by: Wesley Cheng --- drivers/usb/host/xhci.c | 6 ++++-- drivers/usb/host/xhci.h | 2 ++ 2 files changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 9803efe7cdf2..dfc59338afb6 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -320,7 +320,7 @@ static void xhci_zero_64b_regs(struct xhci_hcd *xhci) xhci_info(xhci, "Fault detected\n"); } -static int xhci_enable_interrupter(struct xhci_interrupter *ir) +int xhci_enable_interrupter(struct xhci_interrupter *ir) { u32 iman; @@ -332,8 +332,9 @@ static int xhci_enable_interrupter(struct xhci_interrupter *ir) return 0; } +EXPORT_SYMBOL_GPL(xhci_enable_interrupter); -static int xhci_disable_interrupter(struct xhci_interrupter *ir) +int xhci_disable_interrupter(struct xhci_interrupter *ir) { u32 iman; @@ -345,6 +346,7 @@ static int xhci_disable_interrupter(struct xhci_interrupter *ir) return 0; } +EXPORT_SYMBOL_GPL(xhci_disable_interrupter); /* interrupt moderation interval imod_interval in nanoseconds */ static int xhci_set_interrupter_moderation(struct xhci_interrupter *ir, diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index 4f5e5187ea46..8908c3f5af6f 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -1872,6 +1872,8 @@ int xhci_alloc_tt_info(struct xhci_hcd *xhci, struct xhci_virt_device *virt_dev, struct usb_device *hdev, struct usb_tt *tt, gfp_t mem_flags); +int xhci_enable_interrupter(struct xhci_interrupter *ir); +int xhci_disable_interrupter(struct xhci_interrupter *ir); /* xHCI ring, segment, TRB, and TD functions */ dma_addr_t xhci_trb_virt_to_dma(struct xhci_segment *seg, union xhci_trb *trb);