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 gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (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 BAF15CD6E60 for ; Wed, 3 Jun 2026 15:19:05 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 0421210FFE4; Wed, 3 Jun 2026 15:19:04 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (1024-bit key; unprotected) header.d=linux.alibaba.com header.i=@linux.alibaba.com header.b="jHQk/RoA"; dkim-atps=neutral Received: from out30-130.freemail.mail.aliyun.com (out30-130.freemail.mail.aliyun.com [115.124.30.130]) by gabe.freedesktop.org (Postfix) with ESMTPS id DAEC110FFDC for ; Wed, 3 Jun 2026 15:18:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.alibaba.com; s=default; t=1780499938; h=From:To:Subject:Date:Message-ID:MIME-Version; bh=KZgq1eaNBXtMeM2COnghIdZmSnxtaNxaK4JO7Z48KHI=; b=jHQk/RoA3JpiWR8rmDFY1yav/gXXE7p7mcJKtS1Ek6spGrRPpD4ckwNPGnuhZiuPIk6xRbvKojc/8zN4goGFsGDrViEd8cp9UzAI7gWOigk0RxBanbUZ6wZFQOm1soGQHwmKOZ03MO4ec862jJMX7FPDbNmuKMwTA7CSeLrFzeg= X-Alimail-AntiSpam: AC=PASS; BC=-1|-1; BR=01201311R681e4; 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_---0X47fR4o_1780499935; Received: from VM20241011-104.tbsite.net(mailfrom:guanghuifeng@linux.alibaba.com fp:SMTPD_---0X47fR4o_1780499935 cluster:ay36) by smtp.aliyun-inc.com; Wed, 03 Jun 2026 23:18:55 +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 17/32] iommu/rockchip: implement iova_to_phys_length Date: Wed, 3 Jun 2026 23:17:49 +0800 Message-ID: <20260603151804.1963871-18-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> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Implement iova_to_phys_length for Rockchip IOMMU driver, returning the actual PTE mapping size. Signed-off-by: Guanghui Feng --- drivers/iommu/rockchip-iommu.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/iommu/rockchip-iommu.c b/drivers/iommu/rockchip-iommu.c index 0013cf196c57..a51c29340b98 100644 --- a/drivers/iommu/rockchip-iommu.c +++ b/drivers/iommu/rockchip-iommu.c @@ -648,12 +648,12 @@ static irqreturn_t rk_iommu_irq(int irq, void *dev_id) return ret; } -static phys_addr_t rk_iommu_iova_to_phys(struct iommu_domain *domain, - dma_addr_t iova) +static phys_addr_t rk_iommu_iova_to_phys_length(struct iommu_domain *domain, + dma_addr_t iova, size_t *mapped_length) { struct rk_iommu_domain *rk_domain = to_rk_domain(domain); unsigned long flags; - phys_addr_t pt_phys, phys = 0; + phys_addr_t pt_phys, phys = PHYS_ADDR_MAX; u32 dte, pte; u32 *page_table; @@ -670,6 +670,8 @@ static phys_addr_t rk_iommu_iova_to_phys(struct iommu_domain *domain, goto out; phys = rk_ops->pt_address(pte) + rk_iova_page_offset(iova); + if (mapped_length) + *mapped_length = SPAGE_SIZE; out: spin_unlock_irqrestore(&rk_domain->dt_lock, flags); @@ -1187,7 +1189,7 @@ static const struct iommu_ops rk_iommu_ops = { .attach_dev = rk_iommu_attach_device, .map_pages = rk_iommu_map, .unmap_pages = rk_iommu_unmap, - .iova_to_phys = rk_iommu_iova_to_phys, + .iova_to_phys_length = rk_iommu_iova_to_phys_length, .free = rk_iommu_domain_free, } }; -- 2.43.7