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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 B97BCCD6E68 for ; Tue, 2 Jun 2026 10:47:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=Qq9/61+2kM5dFltdNcmj4CJHO8jMn9Ru5g9fMIrB3uo=; b=J4/Pqwjcw1qMGJF1Y6XstOhC6K UeWjWCz/QAo9R82UT51TgbfJQ7FCDHj7L9i/qiG7OpK8ANWXFAaiWkMTxKAY/QRdvd3muTOYqnvOQ 1DAGI1FgChfHvUq/CZAoqzyas0KkdmVfyQtRWOITw8P1WQzjXSzkkCMUuDXxKeEUqmSK+uZ0RdQgr mP5AFHiIDSiXC7IevlswJvEx2EG0XNeo5oQyFeO8tJcrXCtKNBfgFeItMeruEbJcHDVgwTKCQEHVj uKheJCNLGITb04SdKGKFUNkbQjFfN61vng2MUwaQmw9pfLQ9yZiEksxARptagUR1A/b7sMgKvMQNf MAdWIuXA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wUMeH-0000000Cnvs-2BmB; Tue, 02 Jun 2026 10:47:05 +0000 Received: from out30-110.freemail.mail.aliyun.com ([115.124.30.110]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wUMeD-0000000Cnni-1uqf for linux-arm-kernel@lists.infradead.org; Tue, 02 Jun 2026 10:47:03 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.alibaba.com; s=default; t=1780397219; h=From:To:Subject:Date:Message-ID:MIME-Version; bh=Qq9/61+2kM5dFltdNcmj4CJHO8jMn9Ru5g9fMIrB3uo=; b=PFH+JANs8/qWAqHsu8snuu8r+vZaiCNiC9fycb1LP2X+/6OzeUsFl2tFaltdIgGJGNL53+II9uILSHYw5HQYqUt10PSog8rTUBHCAS/N2QLPY1Px63H61HIfLfpkF9mMYomng8GMtDpKdI1mI+9IQ1WVrZ52zzDuxE1AAwrjpHM= X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R201e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=maildocker-contentspam033045098064;MF=guanghuifeng@linux.alibaba.com;NM=1;PH=DS;RN=28;SR=0;TI=SMTPD_---0X44E94P_1780397217; Received: from VM20241011-104.tbsite.net(mailfrom:guanghuifeng@linux.alibaba.com fp:SMTPD_---0X44E94P_1780397217 cluster:ay36) by smtp.aliyun-inc.com; Tue, 02 Jun 2026 18:46:57 +0800 From: Guanghui Feng To: adrian.larumbe@collabora.com, airlied@gmail.com, alex@shazbot.org, baolu.lu@linux.intel.com, boris.brezillon@collabora.com, dri-devel@lists.freedesktop.org, dwmw2@infradead.org, iommu@lists.linux.dev, jgg@ziepe.ca, joro@8bytes.org, kevin.tian@intel.com, kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, liviu.dudau@arm.com, maarten.lankhorst@linux.intel.com, mripard@kernel.org, oliver.yang@linux.alibaba.com, robh@kernel.org, robin.murphy@arm.com, shiyu.zsq@linux.alibaba.com, steven.price@arm.com, suravee.suthikulpanit@amd.com, tzimmermann@suse.de, wei.guo.simon@linux.alibaba.com, will@kernel.org, xlpang@linux.alibaba.com Cc: alikernel-developer@linux.alibaba.com Subject: [PATCH v2 10/30] iommu/ipmmu-vmsa: implement iova_to_phys_length Date: Tue, 2 Jun 2026 18:46:17 +0800 Message-ID: <20260602104637.1219810-11-guanghuifeng@linux.alibaba.com> X-Mailer: git-send-email 2.43.7 In-Reply-To: <20260602104637.1219810-1-guanghuifeng@linux.alibaba.com> References: <20260531093637.3893199-1-guanghuifeng@linux.alibaba.com> <20260602104637.1219810-1-guanghuifeng@linux.alibaba.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260602_034701_828822_99F8243C X-CRM114-Status: UNSURE ( 8.85 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Migrate IPMMU-VMSA to implement iova_to_phys_length, passing through mapped_length from io-pgtable. Signed-off-by: Guanghui Feng --- drivers/iommu/ipmmu-vmsa.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/drivers/iommu/ipmmu-vmsa.c b/drivers/iommu/ipmmu-vmsa.c index 9386b752dea2..a1b659ddbdb5 100644 --- a/drivers/iommu/ipmmu-vmsa.c +++ b/drivers/iommu/ipmmu-vmsa.c @@ -699,14 +699,18 @@ static void ipmmu_iotlb_sync(struct iommu_domain *io_domain, ipmmu_flush_iotlb_all(io_domain); } -static phys_addr_t ipmmu_iova_to_phys(struct iommu_domain *io_domain, - dma_addr_t iova) +static phys_addr_t ipmmu_iova_to_phys_length(struct iommu_domain *io_domain, + dma_addr_t iova, size_t *mapped_length) { struct ipmmu_vmsa_domain *domain = to_vmsa_domain(io_domain); + if (mapped_length) + *mapped_length = 0; + /* TODO: Is locking needed ? */ - return domain->iop->iova_to_phys(domain->iop, iova); + return domain->iop->iova_to_phys_length(domain->iop, iova, + mapped_length); } static int ipmmu_init_platform_device(struct device *dev, @@ -892,7 +896,7 @@ static const struct iommu_ops ipmmu_ops = { .unmap_pages = ipmmu_unmap, .flush_iotlb_all = ipmmu_flush_iotlb_all, .iotlb_sync = ipmmu_iotlb_sync, - .iova_to_phys = ipmmu_iova_to_phys, + .iova_to_phys_length = ipmmu_iova_to_phys_length, .free = ipmmu_domain_free, } }; -- 2.43.7