From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out30-98.freemail.mail.aliyun.com (out30-98.freemail.mail.aliyun.com [115.124.30.98]) (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 5472E3E0C42; Tue, 2 Jun 2026 10:47:06 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=115.124.30.98 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780397229; cv=none; b=GturuAP/eL992beW4am0S/85FB/bBl4BkkVq/FkTPSWbxfN9UMN/HtsCPAuEbyE++kMNmnGy4aa4HS9koE9AUtZ6QaH1vAkkkfU1dj7cEm6kdIrr1MOU4b+6/Ae0gTh4jzLvKAbG6ZiG8exs1CwCXPEZv6imhs6W6CJDioDQdPY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780397229; c=relaxed/simple; bh=HknEBxplz6TPj1cTXgsn+O0b2afp/paN5O4c29PiuEg=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=ERClRa8aa0FkK74acWhsYYpXoZbrFIc81EHBlijeDRFOcpcmsBpgHAcaur/R7fsX15//py71J0+d3y3Oa3yU4P3BdfZf9Nw0j00YarTSJhqSq12dsPitTtUR8yOggFIitZda7d3177MTfhYHrl16UUHr0+0ZBk0qNv8hO0YaWOE= 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=PFH+JANs; arc=none smtp.client-ip=115.124.30.98 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="PFH+JANs" 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> 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 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