From mboxrd@z Thu Jan 1 00:00:00 1970 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 5285AC46467 for ; Mon, 2 Jan 2023 11:56:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232603AbjABL4p (ORCPT ); Mon, 2 Jan 2023 06:56:45 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:34282 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232573AbjABL4n (ORCPT ); Mon, 2 Jan 2023 06:56:43 -0500 Received: from mx0a-001b2d01.pphosted.com (mx0b-001b2d01.pphosted.com [148.163.158.5]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 674D425C4; Mon, 2 Jan 2023 03:56:40 -0800 (PST) Received: from pps.filterd (m0098420.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.17.1.19/8.17.1.19) with ESMTP id 3028Eebh022345; Mon, 2 Jan 2023 11:56:26 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=x1CQIPTFGI4XvF4eZXRQn4xVZA4mx39SnnoYF2uy778=; b=bxj1RgM0Ic/thEz9uFeDmQlsJLqfPqF89TyZOtkHaq8P3xGWhWxQ7/xHiFc158lVg/5Y FAuzSClKd4mYhYglt/cLq9l8KB96lnY/5jQARatKOhCdaoDg2vlUFxdw2p025JYAQOwQ h1RYKPPV90i3/f2APtXRQ5iDm9xdILf454Jol2tTBIFzfcjLnv5C8cGfGJ4cayz9oiHJ UcAFM6/Ziz69v3wedxFU8ssz7mZz3rSkfetTHeQvrh91gJbpetqxOtr14Bzui0ZWuycy FJybwKUK3MVAPh/y3ShlBpkvyIMx3bCO/vRe9ReTWqZw7vrJXmknurr14wkYK8nyVLjN Qw== Received: from ppma05fra.de.ibm.com (6c.4a.5195.ip4.static.sl-reverse.com [149.81.74.108]) by mx0b-001b2d01.pphosted.com (PPS) with ESMTPS id 3mty10yj31-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 02 Jan 2023 11:56:26 +0000 Received: from pps.filterd (ppma05fra.de.ibm.com [127.0.0.1]) by ppma05fra.de.ibm.com (8.17.1.19/8.17.1.19) with ESMTP id 30180E11032663; Mon, 2 Jan 2023 11:56:24 GMT Received: from smtprelay05.fra02v.mail.ibm.com ([9.218.2.225]) by ppma05fra.de.ibm.com (PPS) with ESMTPS id 3mtcq6hrts-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Mon, 02 Jan 2023 11:56:24 +0000 Received: from smtpav04.fra02v.mail.ibm.com (smtpav04.fra02v.mail.ibm.com [10.20.54.103]) by smtprelay05.fra02v.mail.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id 302BuKMn42926418 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Mon, 2 Jan 2023 11:56:20 GMT Received: from smtpav04.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 8AB8620043; Mon, 2 Jan 2023 11:56:20 +0000 (GMT) Received: from smtpav04.fra02v.mail.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 2C0DC2004B; Mon, 2 Jan 2023 11:56:20 +0000 (GMT) Received: from tuxmaker.boeblingen.de.ibm.com (unknown [9.152.85.9]) by smtpav04.fra02v.mail.ibm.com (Postfix) with ESMTP; Mon, 2 Jan 2023 11:56:20 +0000 (GMT) From: Niklas Schnelle To: Joerg Roedel , Will Deacon , Robin Murphy , Jason Gunthorpe , Wenjia Zhang Cc: Matthew Rosato , Gerd Bayer , Pierre Morel , iommu@lists.linux.dev, linux-s390@vger.kernel.org, borntraeger@linux.ibm.com, hca@linux.ibm.com, gor@linux.ibm.com, gerald.schaefer@linux.ibm.com, agordeev@linux.ibm.com, svens@linux.ibm.com, linux-kernel@vger.kernel.org, Julian Ruess Subject: [PATCH v3 1/7] s390/ism: Set DMA coherent mask Date: Mon, 2 Jan 2023 12:56:13 +0100 Message-Id: <20230102115619.2088685-2-schnelle@linux.ibm.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230102115619.2088685-1-schnelle@linux.ibm.com> References: <20230102115619.2088685-1-schnelle@linux.ibm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-TM-AS-GCONF: 00 X-Proofpoint-GUID: sr0IXvfJQmwYVheqH3Wc8v2N4k7c9ufn X-Proofpoint-ORIG-GUID: sr0IXvfJQmwYVheqH3Wc8v2N4k7c9ufn X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.205,Aquarius:18.0.923,Hydra:6.0.545,FMLib:17.11.122.1 definitions=2023-01-02_06,2022-12-30_01,2022-06-22_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 clxscore=1015 suspectscore=0 mlxlogscore=971 mlxscore=0 lowpriorityscore=0 malwarescore=0 phishscore=0 bulkscore=0 adultscore=0 impostorscore=0 priorityscore=1501 spamscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-2212070000 definitions=main-2301020105 Precedence: bulk List-ID: X-Mailing-List: linux-s390@vger.kernel.org A future change will convert the DMA API implementation from the architecture specific arch/s390/pci/pci_dma.c to using the common code drivers/iommu/dma-iommu.c which the utilizes the same IOMMU hardware through the s390-iommu driver. Unlike the s390 specific DMA API this requires devices to correctly call set the coherent mask to be allowed to use IOVAs >2^32 in dma_alloc_coherent(). This was however not done for ISM devices. ISM requires such addresses since currently the DMA aperture for PCI devices starts at 2^32 and all calls to dma_alloc_coherent() would thus fail. Signed-off-by: Niklas Schnelle --- v1 -> v2: - Use dma_set_mask_and_coherent() (Christoph Hellwig) drivers/s390/net/ism_drv.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/s390/net/ism_drv.c b/drivers/s390/net/ism_drv.c index dfd401d9e362..aba03b613296 100644 --- a/drivers/s390/net/ism_drv.c +++ b/drivers/s390/net/ism_drv.c @@ -557,7 +557,7 @@ static int ism_probe(struct pci_dev *pdev, const struct pci_device_id *id) if (ret) goto err_disable; - ret = dma_set_mask(&pdev->dev, DMA_BIT_MASK(64)); + ret = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64)); if (ret) goto err_resource; -- 2.34.1