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From: Nicolin Chen <nicolinc@nvidia.com>
To: Robin Murphy <robin.murphy@arm.com>
Cc: <jgg@nvidia.com>, <kevin.tian@intel.com>, <joro@8bytes.org>,
	<will@kernel.org>, <agross@kernel.org>, <andersson@kernel.org>,
	<konrad.dybcio@linaro.org>, <yong.wu@mediatek.com>,
	<matthias.bgg@gmail.com>, <thierry.reding@gmail.com>,
	<alex.williamson@redhat.com>, <cohuck@redhat.com>,
	<vdumpa@nvidia.com>, <jonathanh@nvidia.com>,
	<iommu@lists.linux.dev>, <linux-kernel@vger.kernel.org>,
	<linux-arm-msm@vger.kernel.org>,
	<linux-mediatek@lists.infradead.org>,
	<linux-arm-kernel@lists.infradead.org>,
	<linux-tegra@vger.kernel.org>, <kvm@vger.kernel.org>
Subject: Re: [PATCH 2/4] iommu/dma: Do not init domain if broken_unmanaged_domain
Date: Fri, 27 Jan 2023 14:51:42 -0800	[thread overview]
Message-ID: <Y9RVftHuARKQnfN1@Asurada-Nvidia> (raw)
In-Reply-To: <89da64c8-fef4-2cea-f15c-86264073500c@arm.com>

On Fri, Jan 27, 2023 at 09:59:50PM +0000, Robin Murphy wrote:
> External email: Use caution opening links or attachments
> 
> 
> On 2023-01-27 20:04, Nicolin Chen wrote:
> > Add a sanity of the broken_unmanaged_domain flag to reject the use of
> > dma-iommu in the early stage, if the flag is set by the iommu driver.
> 
> Realistically, iommu-dma will never be enabled on PPC32, let alone used.
> It will not be enabled on ARM until I've fixed any drivers which need
> fixing to work with it. We don't need to add dead code here.

OK. Sounds like I can drop this patch.

Thanks
Nicolin

WARNING: multiple messages have this Message-ID (diff)
From: Nicolin Chen <nicolinc@nvidia.com>
To: Robin Murphy <robin.murphy@arm.com>
Cc: kevin.tian@intel.com, kvm@vger.kernel.org, iommu@lists.linux.dev,
	linux-kernel@vger.kernel.org, andersson@kernel.org,
	cohuck@redhat.com, jonathanh@nvidia.com,
	konrad.dybcio@linaro.org, linux-tegra@vger.kernel.org,
	alex.williamson@redhat.com, agross@kernel.org,
	thierry.reding@gmail.com, linux-arm-kernel@lists.infradead.org,
	jgg@nvidia.com, linux-arm-msm@vger.kernel.org,
	matthias.bgg@gmail.com, linux-mediatek@lists.infradead.org,
	will@kernel.org, joro@8bytes.org, yong.wu@mediatek.com
Subject: Re: [PATCH 2/4] iommu/dma: Do not init domain if broken_unmanaged_domain
Date: Fri, 27 Jan 2023 14:51:42 -0800	[thread overview]
Message-ID: <Y9RVftHuARKQnfN1@Asurada-Nvidia> (raw)
In-Reply-To: <89da64c8-fef4-2cea-f15c-86264073500c@arm.com>

On Fri, Jan 27, 2023 at 09:59:50PM +0000, Robin Murphy wrote:
> External email: Use caution opening links or attachments
> 
> 
> On 2023-01-27 20:04, Nicolin Chen wrote:
> > Add a sanity of the broken_unmanaged_domain flag to reject the use of
> > dma-iommu in the early stage, if the flag is set by the iommu driver.
> 
> Realistically, iommu-dma will never be enabled on PPC32, let alone used.
> It will not be enabled on ARM until I've fixed any drivers which need
> fixing to work with it. We don't need to add dead code here.

OK. Sounds like I can drop this patch.

Thanks
Nicolin

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  reply	other threads:[~2023-01-27 22:52 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-01-27 20:04 [PATCH 0/4] iommu: Reject drivers with broken_unmanaged_domain Nicolin Chen
2023-01-27 20:04 ` Nicolin Chen
2023-01-27 20:04 ` [PATCH 1/4] iommu: Add a broken_unmanaged_domain flag in iommu_ops Nicolin Chen
2023-01-27 20:04   ` Nicolin Chen
2023-01-27 21:58   ` Robin Murphy
2023-01-27 21:58     ` Robin Murphy
2023-01-27 23:39     ` Nicolin Chen
2023-01-27 23:39       ` Nicolin Chen
2023-01-27 23:54     ` Jason Gunthorpe
2023-01-27 23:54       ` Jason Gunthorpe
2023-01-29  8:11       ` Tian, Kevin
2023-01-29  8:11         ` Tian, Kevin
2023-01-30 13:33         ` Jason Gunthorpe
2023-01-30 13:33           ` Jason Gunthorpe
2023-02-01  3:14           ` Tian, Kevin
2023-02-01  3:14             ` Tian, Kevin
2023-02-01 14:55             ` Jason Gunthorpe
2023-02-01 14:55               ` Jason Gunthorpe
2023-02-02  3:50               ` Tian, Kevin
2023-02-02  3:50                 ` Tian, Kevin
2023-01-29  7:54   ` Tian, Kevin
2023-01-29  7:54     ` Tian, Kevin
2023-01-27 20:04 ` [PATCH 2/4] iommu/dma: Do not init domain if broken_unmanaged_domain Nicolin Chen
2023-01-27 20:04   ` Nicolin Chen
2023-01-27 21:59   ` Robin Murphy
2023-01-27 21:59     ` Robin Murphy
2023-01-27 22:51     ` Nicolin Chen [this message]
2023-01-27 22:51       ` Nicolin Chen
2023-01-27 20:04 ` [PATCH 3/4] iommufd: Do not allocate device object " Nicolin Chen
2023-01-27 20:04   ` Nicolin Chen
2023-01-27 20:04 ` [PATCH 4/4] vfio: Do not allocate domain " Nicolin Chen
2023-01-27 20:04   ` Nicolin Chen
2023-01-29  7:46 ` [PATCH 0/4] iommu: Reject drivers with broken_unmanaged_domain Tian, Kevin
2023-01-29  7:46   ` Tian, Kevin

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