From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out30-113.freemail.mail.aliyun.com (out30-113.freemail.mail.aliyun.com [115.124.30.113]) (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 6D71C3DB334; Tue, 2 Jun 2026 10:47:00 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=115.124.30.113 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780397222; cv=none; b=GWYxZzQw7rHpegv7JowKj4PZWhRuoyrCBIgwhhn1zK60tiDLkReUsbNVtsVdyYhGPwJkl1+PUBHL7nPHRM7vUYJhyDydDzuujT0V1J2hCSKKPoKrCb140He0mkWlCxE4NJhfhp35/mXrNmw1Y2GB/V1sHsw3LDucMWBF7poFY8Q= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1780397222; c=relaxed/simple; bh=SxDTtbIP5hN3dHiRgnFNRD9kF3zlvcF912srH1uih54=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=mASQOwZg9vKMJBvPLMY+vjvYGp9lBBdh8pIkB0bm0saF8L/IVNw1WQTCVMKyDo4kKhK2UDUbniuys4Z+QEVN4RQv7yKOXUAkRdHqOOKyu7ZvbHiTzofuwNFYeeH7Fqxz50zDDicOM/Afemx8wdsxZ+N+i+p63OsU+jwEoi2Y3I0= 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=aIXhzpTI; arc=none smtp.client-ip=115.124.30.113 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="aIXhzpTI" DKIM-Signature:v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.alibaba.com; s=default; t=1780397218; h=From:To:Subject:Date:Message-ID:MIME-Version; bh=IHlmwkp5E6y8Q4Y8FCcuIlB8UhrtfgCWXf1p/iBu1UE=; b=aIXhzpTIpxJSmp3Fp/j4DjUYDVPunHL1h6aH4X70JgDMQHRmZYRo3/WTOUL/8HlNHF9R+vRkWs7wyTG0tZq0IM1viT3YSqlU8J6eXpJ25qToOaDNaVdgGXTyIbYUm7eo4khEipDhkmgU9b2cncdcF5g0Qf+bSh9OU/DjXS17iZ0= X-Alimail-AntiSpam:AC=PASS;BC=-1|-1;BR=01201311R591e4;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_---0X44E94E_1780397216; Received: from VM20241011-104.tbsite.net(mailfrom:guanghuifeng@linux.alibaba.com fp:SMTPD_---0X44E94E_1780397216 cluster:ay36) by smtp.aliyun-inc.com; Tue, 02 Jun 2026 18:46:56 +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 09/30] iommu/apple-dart: implement iova_to_phys_length Date: Tue, 2 Jun 2026 18:46:16 +0800 Message-ID: <20260602104637.1219810-10-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 Apple DART to implement iova_to_phys_length, passing through mapped_length from io-pgtable. Signed-off-by: Guanghui Feng --- drivers/iommu/apple-dart.c | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) diff --git a/drivers/iommu/apple-dart.c b/drivers/iommu/apple-dart.c index 17bdadb6b504..2d753ce96cd9 100644 --- a/drivers/iommu/apple-dart.c +++ b/drivers/iommu/apple-dart.c @@ -528,16 +528,19 @@ static int apple_dart_iotlb_sync_map(struct iommu_domain *domain, return 0; } -static phys_addr_t apple_dart_iova_to_phys(struct iommu_domain *domain, - dma_addr_t iova) +static phys_addr_t apple_dart_iova_to_phys_length(struct iommu_domain *domain, + dma_addr_t iova, size_t *mapped_length) { struct apple_dart_domain *dart_domain = to_dart_domain(domain); struct io_pgtable_ops *ops = dart_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 int apple_dart_map_pages(struct iommu_domain *domain, unsigned long iova, @@ -1018,7 +1021,7 @@ static const struct iommu_ops apple_dart_iommu_ops = { .flush_iotlb_all = apple_dart_flush_iotlb_all, .iotlb_sync = apple_dart_iotlb_sync, .iotlb_sync_map = apple_dart_iotlb_sync_map, - .iova_to_phys = apple_dart_iova_to_phys, + .iova_to_phys_length = apple_dart_iova_to_phys_length, .free = apple_dart_domain_free, } }; -- 2.43.7