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 879E6CD6E6C for ; Tue, 2 Jun 2026 10:47:06 +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=/s0JwaJLS0ug4dMnq5/oVetvw4KKwU6QXk7J9Nngu08=; b=K87ev6cKgrvweglgAx+JtnKmZh NOJDXZ/idlBX3eB2SSTa+K6YWLdBEMoD96qXub/yCdG/NsdTah5LN+W4//PcH/Usd3EA8tHGlujQc uyTQyPPMiCENG31g89SbQoYazXA6rTdJWwRczGRIVaGTIluQ548Edydth+8qTp+nI65Qz0Chx+B9d oC3AwiI0N+MGNSNA0h5tQRrIodsENkZsObiHIyy8FisQ2KPtgBV8xRXIveG8e6Ab0wSRWAB3aJzOQ 2cbQSHnqQ7wB9dVtG7wQ/9zEOwIlOsKk4Q25FHKOZQU14pVHty0Lq5Mggro+OAy/e6LozM0b/+xWL f51Qyjow==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wUMeC-0000000Cnod-1uur; Tue, 02 Jun 2026 10:47:00 +0000 Received: from out30-99.freemail.mail.aliyun.com ([115.124.30.99]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wUMe9-0000000Cnjq-0o8z for linux-arm-kernel@lists.infradead.org; Tue, 02 Jun 2026 10:46:58 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.alibaba.com; s=default; t=1780397215; h=From:To:Subject:Date:Message-ID:MIME-Version; bh=/s0JwaJLS0ug4dMnq5/oVetvw4KKwU6QXk7J9Nngu08=; b=nwdEvE9SLC/fhdEu7wyY3eXD/l4E3+qfMXrhDyiXkjNUte061UQLjim2SIacUZR5eioHcvJeYVJYPmvG8fopPlXNVqZG/AuLJdLubJRdZI2jPSY8d0ZdAOBY2VAATCenzcfd5h3ZIvkxQBPVQIxDkqD0xMNjWZZEw8LzjK9fZbU= X-Alimail-AntiSpam: AC=PASS;BC=-1|-1;BR=01201311R211e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=maildocker-contentspam033045133197;MF=guanghuifeng@linux.alibaba.com;NM=1;PH=DS;RN=28;SR=0;TI=SMTPD_---0X44E93R_1780397213; Received: from VM20241011-104.tbsite.net(mailfrom:guanghuifeng@linux.alibaba.com fp:SMTPD_---0X44E93R_1780397213 cluster:ay36) by smtp.aliyun-inc.com; Tue, 02 Jun 2026 18:46:53 +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 06/30] iommu/arm-smmu-v3: implement iova_to_phys_length Date: Tue, 2 Jun 2026 18:46:13 +0800 Message-ID: <20260602104637.1219810-7-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_034657_464129_ED74BB35 X-CRM114-Status: UNSURE ( 9.60 ) 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 ARM SMMUv3 to implement iova_to_phys_length, calling ops->iova_to_phys_length on the io-pgtable layer. Signed-off-by: Guanghui Feng --- drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c | 12 ++++++++---- 1 file changed, 8 insertions(+), 4 deletions(-) diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c index e8d7dbe495f0..69fb7ce74681 100644 --- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c +++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3.c @@ -4069,14 +4069,18 @@ static void arm_smmu_iotlb_sync(struct iommu_domain *domain, } static phys_addr_t -arm_smmu_iova_to_phys(struct iommu_domain *domain, dma_addr_t iova) +arm_smmu_iova_to_phys_length(struct iommu_domain *domain, dma_addr_t iova, + size_t *mapped_length) { struct io_pgtable_ops *ops = to_smmu_domain(domain)->pgtbl_ops; + if (mapped_length) + *mapped_length = 0; + if (!ops) - return 0; + return PHYS_ADDR_MAX; - return ops->iova_to_phys(ops, iova); + return ops->iova_to_phys_length(ops, iova, mapped_length); } static struct platform_driver arm_smmu_driver; @@ -4396,7 +4400,7 @@ static const struct iommu_ops arm_smmu_ops = { .unmap_pages = arm_smmu_unmap_pages, .flush_iotlb_all = arm_smmu_flush_iotlb_all, .iotlb_sync = arm_smmu_iotlb_sync, - .iova_to_phys = arm_smmu_iova_to_phys, + .iova_to_phys_length = arm_smmu_iova_to_phys_length, .free = arm_smmu_domain_free_paging, } }; -- 2.43.7