From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out30-99.freemail.mail.aliyun.com (out30-99.freemail.mail.aliyun.com [115.124.30.99]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3AF173D905C; Tue, 2 Jun 2026 10:46:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=115.124.30.99 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780397219; cv=none; b=oCgplQP8hTSB5wpglXnwDJqbFWQBbz9KmlBqbBJ0eFSewk2YmNm06gobw+iwLpXlF5ujBMNKks2BUI1MEvakptpYd9EPhHxFXWYaEDjIRW7RVacNSOjgHDpR3aktaE3C++B9H+fry42HzjOewyaAxwpXTk3xPjOazVb8aV8Rof0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780397219; c=relaxed/simple; bh=jQkq4FgBd7u+vksQWF3M4XMjZpGjjgOdbzFJyPfP4h8=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=iTmwN1SjWV1fA9K1aq3T+qR+To/bOcB5T+jc4imTm3m629TagLfg3eF5DM5bulQmak4TcAmLDRqgaB7/NEnawXexCCkcufNDslrzUEfT6LEyD2W3ghwThofiXkj0nFWnjrAWqVXKmF4lwv2e3kfavH+pPIzvv5YBPC4Ha8U0KL8= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.alibaba.com; spf=pass smtp.mailfrom=linux.alibaba.com; dkim=pass (1024-bit key) header.d=linux.alibaba.com header.i=@linux.alibaba.com header.b=nwdEvE9S; arc=none smtp.client-ip=115.124.30.99 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.alibaba.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.alibaba.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.alibaba.com header.i=@linux.alibaba.com header.b="nwdEvE9S" 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> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 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