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 041CFC433EF for ; Tue, 7 Dec 2021 20:59:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234858AbhLGVCh (ORCPT ); Tue, 7 Dec 2021 16:02:37 -0500 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:26626 "EHLO mx0b-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S240347AbhLGVC0 (ORCPT ); Tue, 7 Dec 2021 16:02:26 -0500 Received: from pps.filterd (m0098417.ppops.net [127.0.0.1]) by mx0a-001b2d01.pphosted.com (8.16.1.2/8.16.1.2) with SMTP id 1B7JgfeC023895; Tue, 7 Dec 2021 20:58:54 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ibm.com; h=from : to : cc : subject : date : message-id : in-reply-to : references : mime-version : content-transfer-encoding; s=pp1; bh=WvYi9eGzUpUqqQMu65u1qn3H97JnN3+Ek4Zh1NgeEt0=; b=GXBMfuZTszglM6r7qOW2Or8euyLWlcS6szbjktQqU+zk+5OtgK+9Yzb8veQUVlON3ImF yxKZh0LmxdTz1wWx1C80oGNS9NJG/7IAkirrSENd/dsq74p3a/p8jUB+2cFlKYrZY1Hn PaZUzifYC10LBkbgg4TRkez1lfT6mcIqcWh1+HgmpUVj1DhEVDbNkCsPiUa6SJ7due5u dZ6kjBRs0Ajp2qFvh+/D4+TUmfzOiP/unvNv1611NJjz84HSqpBPzMhooloURFvMCbPd IeNhXs4uMklqTLC0kbGuZLWnFSwowkLsROOOyTyHvDr0w8PQ21eOBlGVifgXZy1DWvIv Dg== Received: from pps.reinject (localhost [127.0.0.1]) by mx0a-001b2d01.pphosted.com with ESMTP id 3ctbgt4tbd-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 07 Dec 2021 20:58:54 +0000 Received: from m0098417.ppops.net (m0098417.ppops.net [127.0.0.1]) by pps.reinject (8.16.0.43/8.16.0.43) with SMTP id 1B7KA0Vk006083; Tue, 7 Dec 2021 20:58:54 GMT Received: from ppma04dal.us.ibm.com (7a.29.35a9.ip4.static.sl-reverse.com [169.53.41.122]) by mx0a-001b2d01.pphosted.com with ESMTP id 3ctbgt4tb5-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 07 Dec 2021 20:58:54 +0000 Received: from pps.filterd (ppma04dal.us.ibm.com [127.0.0.1]) by ppma04dal.us.ibm.com (8.16.1.2/8.16.1.2) with SMTP id 1B7Kw0nK021341; Tue, 7 Dec 2021 20:58:53 GMT Received: from b01cxnp23034.gho.pok.ibm.com (b01cxnp23034.gho.pok.ibm.com [9.57.198.29]) by ppma04dal.us.ibm.com with ESMTP id 3cqyyau0rd-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Tue, 07 Dec 2021 20:58:53 +0000 Received: from b01ledav005.gho.pok.ibm.com (b01ledav005.gho.pok.ibm.com [9.57.199.110]) by b01cxnp23034.gho.pok.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 1B7KwpSC47448508 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Tue, 7 Dec 2021 20:58:51 GMT Received: from b01ledav005.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id A9A4AAE06F; Tue, 7 Dec 2021 20:58:51 +0000 (GMT) Received: from b01ledav005.gho.pok.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 93D2AAE063; Tue, 7 Dec 2021 20:58:46 +0000 (GMT) Received: from li-c92d2ccc-254b-11b2-a85c-a700b5bfb098.ibm.com.com (unknown [9.211.152.43]) by b01ledav005.gho.pok.ibm.com (Postfix) with ESMTP; Tue, 7 Dec 2021 20:58:46 +0000 (GMT) From: Matthew Rosato To: linux-s390@vger.kernel.org Cc: alex.williamson@redhat.com, cohuck@redhat.com, schnelle@linux.ibm.com, farman@linux.ibm.com, pmorel@linux.ibm.com, borntraeger@linux.ibm.com, hca@linux.ibm.com, gor@linux.ibm.com, gerald.schaefer@linux.ibm.com, agordeev@linux.ibm.com, frankja@linux.ibm.com, david@redhat.com, imbrenda@linux.ibm.com, vneethv@linux.ibm.com, oberpar@linux.ibm.com, freude@linux.ibm.com, thuth@redhat.com, pasic@linux.ibm.com, kvm@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 11/32] s390/pci: add helper function to find device by handle Date: Tue, 7 Dec 2021 15:57:22 -0500 Message-Id: <20211207205743.150299-12-mjrosato@linux.ibm.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20211207205743.150299-1-mjrosato@linux.ibm.com> References: <20211207205743.150299-1-mjrosato@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-GUID: 0xy7PU7D1KIE4KhSax38E3d9HNRsGnrQ X-Proofpoint-ORIG-GUID: QesVvNMYzwRoNOnXxTd4rdZa_LGaUQse X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.790,Hydra:6.0.425,FMLib:17.11.62.513 definitions=2021-12-07_08,2021-12-06_02,2021-12-02_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 impostorscore=0 malwarescore=0 phishscore=0 mlxlogscore=870 bulkscore=0 priorityscore=1501 suspectscore=0 lowpriorityscore=0 spamscore=0 mlxscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2110150000 definitions=main-2112070126 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Intercepted zPCI instructions will specify the desired function via a function handle. Add a routine to find the device with the specified handle. Acked-by: Niklas Schnelle Signed-off-by: Matthew Rosato --- arch/s390/include/asm/pci.h | 1 + arch/s390/pci/pci.c | 16 ++++++++++++++++ 2 files changed, 17 insertions(+) diff --git a/arch/s390/include/asm/pci.h b/arch/s390/include/asm/pci.h index 1a8f9f42da3a..00a2c24d6d2b 100644 --- a/arch/s390/include/asm/pci.h +++ b/arch/s390/include/asm/pci.h @@ -275,6 +275,7 @@ static inline struct zpci_dev *to_zpci_dev(struct device *dev) } struct zpci_dev *get_zdev_by_fid(u32); +struct zpci_dev *get_zdev_by_fh(u32 fh); /* DMA */ int zpci_dma_init(void); diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c index 9b4d3d78b444..af1c0ae017b1 100644 --- a/arch/s390/pci/pci.c +++ b/arch/s390/pci/pci.c @@ -76,6 +76,22 @@ struct zpci_dev *get_zdev_by_fid(u32 fid) return zdev; } +struct zpci_dev *get_zdev_by_fh(u32 fh) +{ + struct zpci_dev *tmp, *zdev = NULL; + + spin_lock(&zpci_list_lock); + list_for_each_entry(tmp, &zpci_list, entry) { + if (tmp->fh == fh) { + zdev = tmp; + break; + } + } + spin_unlock(&zpci_list_lock); + return zdev; +} +EXPORT_SYMBOL_GPL(get_zdev_by_fh); + void zpci_remove_reserved_devices(void) { struct zpci_dev *tmp, *zdev; -- 2.27.0