Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18;
IronPort-SDR: yJJ3lJALOIAbr6nScVnDAihjYOoNDp6kNsyMZzAUZ5m+1eESyCkRN4oORgbfGuLubm0CrlLY4D
 NNvxQ3AJAt1g==
IronPort-SDR: 2tjmcGEZ/+K7vGu4mwps+Jnj56puQNgH9yUuCen7PBQdlOZ1+OafMXAQ8apkeDOTbbN8SnOE58
 9OPrz021udJw==
Subject: Re: [PATCH v4 0/7] Convert the intel iommu driver to the dma-iommu
 api
To:     Lu Baolu <baolu.lu@linux.intel.com>,
        Joerg Roedel <joro@8bytes.org>, Tom Murphy <murphyt7@tcd.ie>,
        David Woodhouse <dwmw2@infradead.org>,
        Christoph Hellwig <hch@infradead.org>
Cc:     Ashok Raj <ashok.raj@intel.com>, Intel-gfx@lists.freedesktop.org,
        iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org
References: <20200927063437.13988-1-baolu.lu@linux.intel.com>
From:   Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Organization: Intel Corporation UK Plc
Message-ID: <e999e371-6d36-ffea-542f-a5f4b230b0ed@linux.intel.com>
Date:   Mon, 28 Sep 2020 10:44:40 +0100
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101
 Thunderbird/68.10.0
MIME-Version: 1.0
In-Reply-To: <20200927063437.13988-1-baolu.lu@linux.intel.com>
Content-Type: text/plain; charset=utf-8; format=flowed
Content-Language: en-US
Content-Transfer-Encoding: 7bit
Precedence: bulk


On 27/09/2020 07:34, Lu Baolu wrote:
> Hi,
> 
> The previous post of this series could be found here.
> 
> https://lore.kernel.org/linux-iommu/20200912032200.11489-1-baolu.lu@linux.intel.com/
> 
> This version introduce a new patch [4/7] to fix an issue reported here.
> 
> https://lore.kernel.org/linux-iommu/51a1baec-48d1-c0ac-181b-1fba92aa428d@linux.intel.com/
> 
> There aren't any other changes.
> 
> Please help to test and review.
> 
> Best regards,
> baolu
> 
> Lu Baolu (3):
>    iommu: Add quirk for Intel graphic devices in map_sg

Since I do have patches to fix i915 to handle this, do we want to 
co-ordinate the two and avoid having to add this quirk and then later 
remove it? Or you want to go the staged approach?

Regards,

Tvrtko

>    iommu/vt-d: Update domain geometry in iommu_ops.at(de)tach_dev
>    iommu/vt-d: Cleanup after converting to dma-iommu ops
> 
> Tom Murphy (4):
>    iommu: Handle freelists when using deferred flushing in iommu drivers
>    iommu: Add iommu_dma_free_cpu_cached_iovas()
>    iommu: Allow the dma-iommu api to use bounce buffers
>    iommu/vt-d: Convert intel iommu driver to the iommu ops
> 
>   .../admin-guide/kernel-parameters.txt         |   5 -
>   drivers/iommu/dma-iommu.c                     | 228 ++++-
>   drivers/iommu/intel/Kconfig                   |   1 +
>   drivers/iommu/intel/iommu.c                   | 901 +++---------------
>   include/linux/dma-iommu.h                     |   8 +
>   include/linux/iommu.h                         |   1 +
>   6 files changed, 336 insertions(+), 808 deletions(-)
>