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 1CB64CD6E67 for ; Tue, 2 Jun 2026 10:47:10 +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=ebpiyse8JbhFo0+DUvlFxMg3I3ztM1AXrzRGo3uJqvw=; b=jzaqLgn3ifk3AhNl5FaVVBozHD EOVWXgrS7CRv4ZN+Vhm9CV7ECgtd60j6JsTd1H66Q0dLt8jyNGK9JF/0NALffUxdcH4yKZ/8wfWGE 1XHWCPLdAJCpzYBu1GK5OecLfUh/7wMmDpqFfruItgarn4Pb5k65crFYDcJ7AFgz+dj3wQQP+Ki+E X6/mN0ketIYWleoY1LTe80ZDVekUBuemPcdVgj6mHqIOL1Vk2gSCRU4A/rt/fc4bHdBNDya0zosp7 Li49X44f+isogfaqBTQVv+Cd1sC11Lj7HLwpe6toRJMZxkNyt9uMeCXjWjUAbavqcwjti81DcvDyX BBnXWuCA==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wUMeF-0000000CntQ-3kwV; Tue, 02 Jun 2026 10:47:03 +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 1wUMeA-0000000CnlH-3tC9 for linux-arm-kernel@lists.infradead.org; Tue, 02 Jun 2026 10:47:00 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.alibaba.com; s=default; t=1780397217; h=From:To:Subject:Date:Message-ID:MIME-Version; bh=ebpiyse8JbhFo0+DUvlFxMg3I3ztM1AXrzRGo3uJqvw=; b=HmCDZdITVXM4B1CVS8SARsHqbJUatFsdZONnIts3ONogXn2A3yN4SZwiTR8oe5aqB3mzJ9Lg3d/vbMK/mgt7InuLU+fwoWwbfBdJwwKQfm8pY6EBBL8X5OJWDTWgshX/VnHKVoVl9hgRDhYAvotvmkHx4pLGYpJrTCLTZE6E9a0= 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-contentspam033032089153;MF=guanghuifeng@linux.alibaba.com;NM=1;PH=DS;RN=28;SR=0;TI=SMTPD_---0X44E93y_1780397215; Received: from VM20241011-104.tbsite.net(mailfrom:guanghuifeng@linux.alibaba.com fp:SMTPD_---0X44E93y_1780397215 cluster:ay36) by smtp.aliyun-inc.com; Tue, 02 Jun 2026 18:46:55 +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 08/30] iommu/qcom_iommu: implement iova_to_phys_length Date: Tue, 2 Jun 2026 18:46:15 +0800 Message-ID: <20260602104637.1219810-9-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_034659_145612_7EB02E78 X-CRM114-Status: UNSURE ( 9.47 ) 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 Qualcomm IOMMU 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/qcom_iommu.c | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) diff --git a/drivers/iommu/arm/arm-smmu/qcom_iommu.c b/drivers/iommu/arm/arm-smmu/qcom_iommu.c index a1e8cf29f594..b36e31509c91 100644 --- a/drivers/iommu/arm/arm-smmu/qcom_iommu.c +++ b/drivers/iommu/arm/arm-smmu/qcom_iommu.c @@ -489,19 +489,22 @@ static void qcom_iommu_iotlb_sync(struct iommu_domain *domain, qcom_iommu_flush_iotlb_all(domain); } -static phys_addr_t qcom_iommu_iova_to_phys(struct iommu_domain *domain, - dma_addr_t iova) +static phys_addr_t qcom_iommu_iova_to_phys_length(struct iommu_domain *domain, + dma_addr_t iova, size_t *mapped_length) { phys_addr_t ret; unsigned long flags; struct qcom_iommu_domain *qcom_domain = to_qcom_iommu_domain(domain); struct io_pgtable_ops *ops = qcom_domain->pgtbl_ops; + if (mapped_length) + *mapped_length = 0; + if (!ops) - return 0; + return PHYS_ADDR_MAX; spin_lock_irqsave(&qcom_domain->pgtbl_lock, flags); - ret = ops->iova_to_phys(ops, iova); + ret = ops->iova_to_phys_length(ops, iova, mapped_length); spin_unlock_irqrestore(&qcom_domain->pgtbl_lock, flags); return ret; @@ -602,7 +605,7 @@ static const struct iommu_ops qcom_iommu_ops = { .unmap_pages = qcom_iommu_unmap, .flush_iotlb_all = qcom_iommu_flush_iotlb_all, .iotlb_sync = qcom_iommu_iotlb_sync, - .iova_to_phys = qcom_iommu_iova_to_phys, + .iova_to_phys_length = qcom_iommu_iova_to_phys_length, .free = qcom_iommu_domain_free, } }; -- 2.43.7