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 EC28BCD6E6E for ; Wed, 3 Jun 2026 15:19:27 +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=KZgq1eaNBXtMeM2COnghIdZmSnxtaNxaK4JO7Z48KHI=; b=ju4ddZYM/OPs1e9cwYb+ecs9qA sGGIBozKwiqTTPaY5D/kcvV5cD24BnAgBkX4txyysRqKrxsKZl9CbTpGS96CSBfJJsKBduO+wMlf9 ZPGru7SWaos5/MjX4d+lI4wzt7/+GE+BU8QDaFHfcbfMrchxe73+ur1IQAQTwmzGcxtLB5tph1F00 kT1TUNyeVyacUM0UBdAyrE3J9/8Q2LQZYZZLWGPgK7dKa/MQqLcPIpNSNplFU4oD5gH8cWZKd+9IV N7xSWZ9cvBfllB/HWcRgIHVxQpGzSO0QmRWBKUoZKQ3gDWexZhTMZFfoBuqd3p79uDQqn9tMlK89W 0UMhYtXg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wUnNJ-0000000FN7u-2Dej; Wed, 03 Jun 2026 15:19:21 +0000 Received: from desiato.infradead.org ([90.155.92.199]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wUnN3-0000000FMoJ-2qNP for linux-arm-kernel@bombadil.infradead.org; Wed, 03 Jun 2026 15:19:05 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=desiato.20200630; h=Content-Transfer-Encoding:MIME-Version :References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From:Sender:Reply-To: Content-Type:Content-ID:Content-Description; bh=KZgq1eaNBXtMeM2COnghIdZmSnxtaNxaK4JO7Z48KHI=; b=jTOTCGjfY9jFmmocbU4ZHmpxfC 2PRpuyZeiMpvb8A6a4WvX1qqh3PncY7NgLEk1IFrtAKYZ8AeVr61Gc+GPle4Jikyi6NtArLUSbPDI 2ZPzg4x+Ybmjx7NAzY252HK08cuFNb6YbAAYkWvqqtVXZfO1GAi8NWRebGOxFyvLqDbJ1Vkpddl3u BHf/jzk6C1sUpckI4jlQ7+m9LWgHyD9682k/kwyaUPdWWIgci47N/sAyvjXkyvy2hlSKrMrDlFGPF AM1SMwkwtqj/tdkkcq3rT1F8DB8EOXVFgDKBb+jaLDbQullFOIo51HrG6ZAcEd+ayBhdu/xn1JsjG 4oGN1RMQ==; Received: from out30-131.freemail.mail.aliyun.com ([115.124.30.131]) by desiato.infradead.org with esmtps (Exim 4.99.2 #2 (Red Hat Linux)) id 1wUnN0-0000000CXhJ-2X2D for linux-arm-kernel@lists.infradead.org; Wed, 03 Jun 2026 15:19:04 +0000 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-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260603_161902_973220_1A5FDFAC X-CRM114-Status: UNSURE ( 9.86 ) 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 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