From: Jason Gunthorpe via iommu <iommu@lists.linux-foundation.org>
To: Lu Baolu <baolu.lu@linux.intel.com>
Cc: Kevin Tian <kevin.tian@intel.com>,
Ashok Raj <ashok.raj@intel.com>, Will Deacon <will@kernel.org>,
linux-kernel@vger.kernel.org,
Christoph Hellwig <hch@infradead.org>,
Jean-Philippe Brucker <jean-philippe@linaro.com>,
iommu@lists.linux-foundation.org,
Jacob jun Pan <jacob.jun.pan@intel.com>,
Robin Murphy <robin.murphy@arm.com>
Subject: Re: [PATCH RFC 06/11] iommu/sva: Use attach/detach_pasid_dev in SVA interfaces
Date: Mon, 21 Mar 2022 09:05:03 -0300 [thread overview]
Message-ID: <20220321120503.GN11336@nvidia.com> (raw)
In-Reply-To: <20220320064030.2936936-7-baolu.lu@linux.intel.com>
On Sun, Mar 20, 2022 at 02:40:25PM +0800, Lu Baolu wrote:
> +/**
> + * iommu_sva_bind_device() - Bind a process address space to a device
> + * @dev: the device
> + * @mm: the mm to bind, caller must hold a reference to it
> + * @drvdata: opaque data pointer to pass to bind callback
> + *
> + * Create a bond between device and address space, allowing the device to access
> + * the mm using the returned PASID. If a bond already exists between @device and
> + * @mm, it is returned and an additional reference is taken. Caller must call
> + * iommu_sva_unbind_device() to release each reference.
> + *
> + * iommu_dev_enable_feature(dev, IOMMU_DEV_FEAT_SVA) must be called first, to
> + * initialize the required SVA features.
> + *
> + * On error, returns an ERR_PTR value.
> + */
> +struct iommu_sva *
> +iommu_sva_bind_device(struct device *dev, struct mm_struct *mm, void *drvdata)
The drvdata is never used
Jason
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WARNING: multiple messages have this Message-ID (diff)
From: Jason Gunthorpe <jgg@nvidia.com>
To: Lu Baolu <baolu.lu@linux.intel.com>
Cc: Joerg Roedel <joro@8bytes.org>,
Christoph Hellwig <hch@infradead.org>,
Kevin Tian <kevin.tian@intel.com>,
Ashok Raj <ashok.raj@intel.com>, Will Deacon <will@kernel.org>,
Robin Murphy <robin.murphy@arm.com>,
Jean-Philippe Brucker <jean-philippe@linaro.com>,
Eric Auger <eric.auger@redhat.com>, Liu Yi L <yi.l.liu@intel.com>,
Jacob jun Pan <jacob.jun.pan@intel.com>,
iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org
Subject: Re: [PATCH RFC 06/11] iommu/sva: Use attach/detach_pasid_dev in SVA interfaces
Date: Mon, 21 Mar 2022 09:05:03 -0300 [thread overview]
Message-ID: <20220321120503.GN11336@nvidia.com> (raw)
In-Reply-To: <20220320064030.2936936-7-baolu.lu@linux.intel.com>
On Sun, Mar 20, 2022 at 02:40:25PM +0800, Lu Baolu wrote:
> +/**
> + * iommu_sva_bind_device() - Bind a process address space to a device
> + * @dev: the device
> + * @mm: the mm to bind, caller must hold a reference to it
> + * @drvdata: opaque data pointer to pass to bind callback
> + *
> + * Create a bond between device and address space, allowing the device to access
> + * the mm using the returned PASID. If a bond already exists between @device and
> + * @mm, it is returned and an additional reference is taken. Caller must call
> + * iommu_sva_unbind_device() to release each reference.
> + *
> + * iommu_dev_enable_feature(dev, IOMMU_DEV_FEAT_SVA) must be called first, to
> + * initialize the required SVA features.
> + *
> + * On error, returns an ERR_PTR value.
> + */
> +struct iommu_sva *
> +iommu_sva_bind_device(struct device *dev, struct mm_struct *mm, void *drvdata)
The drvdata is never used
Jason
next prev parent reply other threads:[~2022-03-21 12:05 UTC|newest]
Thread overview: 112+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-20 6:40 [PATCH RFC 00/11] iommu: SVA and IOPF refactoring Lu Baolu
2022-03-20 6:40 ` Lu Baolu
2022-03-20 6:40 ` [PATCH RFC 01/11] iommu: Add pasid_bits field in struct dev_iommu Lu Baolu
2022-03-20 6:40 ` Lu Baolu
2022-03-21 7:01 ` Tian, Kevin
2022-03-21 7:01 ` Tian, Kevin
2022-03-21 10:22 ` Lu Baolu
2022-03-21 10:22 ` Lu Baolu
2022-03-22 0:26 ` Tian, Kevin
2022-03-22 0:26 ` Tian, Kevin
2022-03-22 0:48 ` Lu Baolu
2022-03-22 0:48 ` Lu Baolu
2022-03-21 11:22 ` Jean-Philippe Brucker
2022-03-21 11:22 ` Jean-Philippe Brucker
2022-03-22 0:45 ` Lu Baolu
2022-03-22 0:45 ` Lu Baolu
2022-03-20 6:40 ` [PATCH RFC 02/11] iommu: Add iommu_domain type for SVA Lu Baolu
2022-03-20 6:40 ` Lu Baolu
2022-03-21 7:06 ` Tian, Kevin
2022-03-21 7:06 ` Tian, Kevin
2022-03-21 10:23 ` Lu Baolu
2022-03-21 10:23 ` Lu Baolu
2022-03-21 11:47 ` Jason Gunthorpe via iommu
2022-03-21 11:47 ` Jason Gunthorpe
2022-03-22 0:54 ` Lu Baolu
2022-03-22 0:54 ` Lu Baolu
2022-03-20 6:40 ` [PATCH RFC 03/11] iommu: Add attach/detach_dev_pasid domain ops Lu Baolu
2022-03-20 6:40 ` Lu Baolu
2022-03-21 7:13 ` Tian, Kevin
2022-03-21 7:13 ` Tian, Kevin
2022-03-21 10:27 ` Lu Baolu
2022-03-21 10:27 ` Lu Baolu
2022-03-21 11:53 ` Jason Gunthorpe via iommu
2022-03-21 11:53 ` Jason Gunthorpe
2022-03-20 6:40 ` [PATCH RFC 04/11] iommu/vt-d: Add SVA domain support Lu Baolu
2022-03-20 6:40 ` Lu Baolu
2022-03-21 7:45 ` Tian, Kevin
2022-03-21 7:45 ` Tian, Kevin
2022-03-21 10:37 ` Lu Baolu
2022-03-21 10:37 ` Lu Baolu
2022-03-21 11:56 ` Jason Gunthorpe via iommu
2022-03-21 11:56 ` Jason Gunthorpe
2022-03-22 4:25 ` Lu Baolu
2022-03-22 4:25 ` Lu Baolu
2022-03-20 6:40 ` [PATCH RFC 05/11] arm-smmu-v3/sva: " Lu Baolu
2022-03-20 6:40 ` Lu Baolu
2022-03-21 11:31 ` Jean-Philippe Brucker
2022-03-21 11:31 ` Jean-Philippe Brucker
2022-03-21 11:58 ` Jason Gunthorpe via iommu
2022-03-21 11:58 ` Jason Gunthorpe
2022-03-20 6:40 ` [PATCH RFC 06/11] iommu/sva: Use attach/detach_pasid_dev in SVA interfaces Lu Baolu
2022-03-20 6:40 ` Lu Baolu
2022-03-21 8:04 ` Tian, Kevin
2022-03-21 8:04 ` Tian, Kevin
2022-03-21 11:01 ` Lu Baolu
2022-03-21 11:01 ` Lu Baolu
2022-03-21 12:03 ` Jason Gunthorpe via iommu
2022-03-21 12:03 ` Jason Gunthorpe
2022-03-21 11:33 ` Jean-Philippe Brucker
2022-03-21 11:33 ` Jean-Philippe Brucker
2022-03-22 4:29 ` Lu Baolu
2022-03-22 4:29 ` Lu Baolu
2022-03-21 12:05 ` Jason Gunthorpe via iommu [this message]
2022-03-21 12:05 ` Jason Gunthorpe
2022-03-22 4:31 ` Lu Baolu
2022-03-22 4:31 ` Lu Baolu
2022-03-20 6:40 ` [PATCH RFC 07/11] iommu: Remove SVA related callbacks from iommu ops Lu Baolu
2022-03-20 6:40 ` Lu Baolu
2022-03-20 6:40 ` [PATCH RFC 08/11] iommu: Handle IO page faults directly Lu Baolu
2022-03-20 6:40 ` Lu Baolu
2022-03-21 11:35 ` Jean-Philippe Brucker
2022-03-21 11:35 ` Jean-Philippe Brucker
2022-03-22 0:39 ` Tian, Kevin
2022-03-22 0:39 ` Tian, Kevin
2022-03-20 6:40 ` [PATCH RFC 09/11] iommu: Add iommu_get_domain_for_dev_pasid() Lu Baolu
2022-03-20 6:40 ` Lu Baolu
2022-03-21 12:40 ` Jason Gunthorpe via iommu
2022-03-21 12:40 ` Jason Gunthorpe
2022-03-22 4:50 ` Lu Baolu
2022-03-22 4:50 ` Lu Baolu
2022-03-20 6:40 ` [PATCH RFC 10/11] iommu: Make IOPF handling framework generic Lu Baolu
2022-03-20 6:40 ` Lu Baolu
2022-03-21 8:09 ` Tian, Kevin
2022-03-21 8:09 ` Tian, Kevin
2022-03-21 11:42 ` Jean-Philippe Brucker
2022-03-21 11:42 ` Jean-Philippe Brucker
2022-03-21 12:43 ` Jason Gunthorpe via iommu
2022-03-21 12:43 ` Jason Gunthorpe
2022-03-22 5:03 ` Lu Baolu
2022-03-22 5:03 ` Lu Baolu
2022-03-22 10:02 ` Jean-Philippe Brucker
2022-03-22 10:02 ` Jean-Philippe Brucker
2022-03-22 12:15 ` Jason Gunthorpe via iommu
2022-03-22 12:15 ` Jason Gunthorpe
2022-03-22 1:00 ` Tian, Kevin
2022-03-22 1:00 ` Tian, Kevin
2022-03-22 10:06 ` Jean-Philippe Brucker
2022-03-22 10:06 ` Jean-Philippe Brucker
2022-03-22 10:24 ` Tian, Kevin
2022-03-22 10:24 ` Tian, Kevin
2022-03-22 10:50 ` Jean-Philippe Brucker
2022-03-22 10:50 ` Jean-Philippe Brucker
2022-03-21 11:39 ` Jean-Philippe Brucker
2022-03-21 11:39 ` Jean-Philippe Brucker
2022-03-22 5:28 ` Lu Baolu
2022-03-22 5:28 ` Lu Baolu
2022-03-21 12:50 ` Jason Gunthorpe via iommu
2022-03-21 12:50 ` Jason Gunthorpe
2022-03-22 5:48 ` Lu Baolu
2022-03-22 5:48 ` Lu Baolu
2022-03-20 6:40 ` [PATCH RFC 11/11] iommu: Rename iommu-sva-lib.{c,h} Lu Baolu
2022-03-20 6:40 ` Lu Baolu
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