From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out30-111.freemail.mail.aliyun.com (out30-111.freemail.mail.aliyun.com [115.124.30.111]) (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 B7F1D47CC8E; Wed, 3 Jun 2026 15:18:56 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=115.124.30.111 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780499938; cv=none; b=T7QAN/Te3YJt5AxTXRGIylmAk5AbYWPjmVTelWBJjySwqIaaXcVHCf8+Xzo0CUHIdswUwrgCSUSMv2dR34RJ7jsbx7CZijwu8b/BOskwZMqZoTcugXBnxEXQs/oCp3w1nFI9LVmBBbbadBhvClKPHv3BRydf09+GppknUITUk3k= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780499938; c=relaxed/simple; bh=TwPlHK7C2kY2tjPK7vpetXLhPuD918Q5/UZzEDfqkQQ=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=pv7NHMAUjzetP7desqkqPM7uEoUu+vUD4/bDSbAZvv8VWfg9Q0ZrRF4MgYGbvBQc4eKVr8Iuyh+8/76wxOhKSW+eYBZALBzak5OltYno4eTL8HMsww2X6XbGZ21tcunuvv4uw/4Yib77zwd9YzrozuOLIf9DlCbCQOxVJegeTjA= 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=wlrj/QCl; arc=none smtp.client-ip=115.124.30.111 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="wlrj/QCl" DKIM-Signature:v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.alibaba.com; s=default; t=1780499929; h=From:To:Subject:Date:Message-ID:MIME-Version; bh=iqg8jVUeg5vulwkVyAexMfFQNB/RSusVVmcIuPE1fjY=; b=wlrj/QCl4uqYTmkmTP/HFsqX20vKedbg8j90oHKDjmfdoN0+qV2WNDTfapCLF2xMpLMcsKsrHvCE7HNFdjVbjSewIViVC+Ps1UsQ39a9v1VqUfcjRg/hnG9oE7JLPUxkeil6r/nyQIwYarDBcnHw5yMCUUxaocCfg6BkYvpFKAU= X-Alimail-AntiSpam:AC=PASS;BC=-1|-1;BR=01201311R851e4;CH=green;DM=||false|;DS=||;FP=0|-1|-1|-1|0|-1|-1|-1;HT=maildocker-contentspam033037033178;MF=guanghuifeng@linux.alibaba.com;NM=1;PH=DS;RN=28;SR=0;TI=SMTPD_---0X47fR2c_1780499926; Received: from VM20241011-104.tbsite.net(mailfrom:guanghuifeng@linux.alibaba.com fp:SMTPD_---0X47fR2c_1780499926 cluster:ay36) by smtp.aliyun-inc.com; Wed, 03 Jun 2026 23:18:46 +0800 From: Guanghui Feng To: jgg@ziepe.ca Cc: adrian.larumbe@collabora.com, airlied@gmail.com, alex@shazbot.org, alikernel-developer@linux.alibaba.com, baolu.lu@linux.intel.com, boris.brezillon@collabora.com, dri-devel@lists.freedesktop.org, dwmw2@infradead.org, iommu@lists.linux.dev, 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 Subject: [PATCH v3 08/32] iommu/qcom_iommu: implement iova_to_phys_length Date: Wed, 3 Jun 2026 23:17:40 +0800 Message-ID: <20260603151804.1963871-9-guanghuifeng@linux.alibaba.com> X-Mailer: git-send-email 2.43.7 In-Reply-To: <20260603151804.1963871-1-guanghuifeng@linux.alibaba.com> References: <20260602104637.1219810-1-guanghuifeng@linux.alibaba.com> <20260603151804.1963871-1-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 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 | 11 ++++++----- 1 file changed, 6 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..9e0e8b5caec1 100644 --- a/drivers/iommu/arm/arm-smmu/qcom_iommu.c +++ b/drivers/iommu/arm/arm-smmu/qcom_iommu.c @@ -489,19 +489,20 @@ 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 (!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 +603,7 @@ 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