search for: iommu_fwnod

Displaying 20 results from an estimated 52 matches for "iommu_fwnod".

Did you mean: iommu_fwnode
2019 Nov 02
0
[PATCH v2 2/9] iommu: Add dummy dev_iommu_fwspec_get() helper
...x/iommu.h index 7bf038b371b8..b092e73b2c86 100644 --- a/include/linux/iommu.h +++ b/include/linux/iommu.h @@ -190,6 +190,27 @@ struct iommu_sva_ops { iommu_mm_exit_handler_t mm_exit; }; +/** + * struct iommu_fwspec - per-device IOMMU instance data + * @ops: ops for this device's IOMMU + * @iommu_fwnode: firmware handle for this device's IOMMU + * @iommu_priv: IOMMU driver private data for this device + * @flags: IOMMU flags associated with this device + * @num_ids: number of associated device IDs + * @ids: IDs which this device may present to the IOMMU + */ +struct iommu_fwspec { + const str...
2020 Apr 14
0
[PATCH v2 17/33] iommu/arm-smmu: Convert to probe/release_device() call-backs
...c = dev_iommu_fwspec_get(dev); - struct iommu_group *group; if (!fwspec || fwspec->ops != &arm_smmu_ops) - return -ENODEV; + return ERR_PTR(-ENODEV); if (WARN_ON_ONCE(dev_iommu_priv_get(dev))) - return -EBUSY; + return ERR_PTR(-EBUSY); smmu = arm_smmu_get_by_fwnode(fwspec->iommu_fwnode); if (!smmu) - return -ENODEV; + return ERR_PTR(-ENODEV); master = kzalloc(sizeof(*master), GFP_KERNEL); if (!master) - return -ENOMEM; + return ERR_PTR(-ENOMEM); master->dev = dev; master->smmu = smmu; @@ -2975,30 +2974,15 @@ static int arm_smmu_add_device(struct device *d...
2020 Apr 08
1
[RFC PATCH 17/34] iommu/arm-smmu: Store device instead of group in arm_smmu_s2cr
On 2020-04-08 3:37 pm, Joerg Roedel wrote: > Hi Robin, > > thanks for looking into this. > > On Wed, Apr 08, 2020 at 01:09:40PM +0100, Robin Murphy wrote: >> For a hot-pluggable bus where logical devices may share Stream IDs (like >> fsl-mc), this could happen: >> >> create device A >> iommu_probe_device(A) >> iommu_device_group(A)
2019 Nov 02
13
[PATCH v2 0/9] drm/nouveau: Various fixes for GP10B
From: Thierry Reding <treding at nvidia.com> Hi Ben, here's a revised subset of the patches I had sent out a couple of weeks ago. I've reworked the BAR2 accesses in the way that you had suggested, which at least for GP10B turned out to be fairly trivial to do. I have not looked in detail at this for GV11B yet, but a cursory look showed that BAR2 is accessed in more places, so the
2020 Apr 14
0
[PATCH v2 20/33] iommu/virtio: Convert to probe/release_device() call-backs
...struct iommu_group *group; struct viommu_endpoint *vdev; struct viommu_dev *viommu = NULL; struct iommu_fwspec *fwspec = dev_iommu_fwspec_get(dev); if (!fwspec || fwspec->ops != &viommu_ops) - return -ENODEV; + return ERR_PTR(-ENODEV); viommu = viommu_get_by_fwnode(fwspec->iommu_fwnode); if (!viommu) - return -ENODEV; + return ERR_PTR(-ENODEV); vdev = kzalloc(sizeof(*vdev), GFP_KERNEL); if (!vdev) - return -ENOMEM; + return ERR_PTR(-ENOMEM); vdev->dev = dev; vdev->viommu = viommu; @@ -896,45 +895,25 @@ static int viommu_add_device(struct device *dev)...
2019 Dec 09
11
[PATCH v3 0/9] drm/nouveau: Various fixes for GP10B
From: Thierry Reding <treding at nvidia.com> Hi Ben, here's a revised subset of the patches I had sent out a couple of weeks ago. I've reworked the BAR2 accesses in the way that you had suggested, which at least for GP10B turned out to be fairly trivial to do. I have not looked in detail at this for GV11B yet, but a cursory look showed that BAR2 is accessed in more places, so the
2020 Mar 10
15
[PATCH 00/15 v2] iommu: Move iommu_fwspec out of 'struct device'
Hi, here is a patch-set to rename iommu_param to dev_iommu and establish it as a struct for generic per-device iommu-data. Also move the iommu_fwspec pointer from struct device into dev_iommu to have less iommu-related pointers in struct device. The bigger part of this patch-set moves the iommu_priv pointer from struct iommu_fwspec to dev_iommu, making is usable for iommu-drivers which do not
2018 Oct 12
3
[PATCH v3 5/7] iommu: Add virtio-iommu driver
...iommu_group *group; > + struct viommu_endpoint *vdev; > + struct viommu_dev *viommu = NULL; > + struct iommu_fwspec *fwspec = dev->iommu_fwspec; > + > + if (!fwspec || fwspec->ops != &viommu_ops) > + return -ENODEV; > + > + viommu = viommu_get_by_fwnode(fwspec->iommu_fwnode); > + if (!viommu) > + return -ENODEV; > + > + vdev = kzalloc(sizeof(*vdev), GFP_KERNEL); > + if (!vdev) > + return -ENOMEM; > + > + vdev->viommu = viommu; > + fwspec->iommu_priv = vdev; > + > + ret = iommu_device_link(&viommu->iommu, dev); > + if...
2018 Oct 12
3
[PATCH v3 5/7] iommu: Add virtio-iommu driver
...iommu_group *group; > + struct viommu_endpoint *vdev; > + struct viommu_dev *viommu = NULL; > + struct iommu_fwspec *fwspec = dev->iommu_fwspec; > + > + if (!fwspec || fwspec->ops != &viommu_ops) > + return -ENODEV; > + > + viommu = viommu_get_by_fwnode(fwspec->iommu_fwnode); > + if (!viommu) > + return -ENODEV; > + > + vdev = kzalloc(sizeof(*vdev), GFP_KERNEL); > + if (!vdev) > + return -ENOMEM; > + > + vdev->viommu = viommu; > + fwspec->iommu_priv = vdev; > + > + ret = iommu_device_link(&viommu->iommu, dev); > + if...
2018 Nov 22
0
[PATCH v5 5/7] iommu: Add virtio-iommu driver
...uct device *dev) +{ + int ret; + struct iommu_group *group; + struct viommu_endpoint *vdev; + struct viommu_dev *viommu = NULL; + struct iommu_fwspec *fwspec = dev->iommu_fwspec; + + if (!fwspec || fwspec->ops != &viommu_ops) + return -ENODEV; + + viommu = viommu_get_by_fwnode(fwspec->iommu_fwnode); + if (!viommu) + return -ENODEV; + + vdev = kzalloc(sizeof(*vdev), GFP_KERNEL); + if (!vdev) + return -ENOMEM; + + vdev->viommu = viommu; + fwspec->iommu_priv = vdev; + + ret = iommu_device_link(&viommu->iommu, dev); + if (ret) + goto err_free_dev; + + /* + * Last step creates a...
2018 Nov 15
0
[PATCH v4 5/7] iommu: Add virtio-iommu driver
...uct device *dev) +{ + int ret; + struct iommu_group *group; + struct viommu_endpoint *vdev; + struct viommu_dev *viommu = NULL; + struct iommu_fwspec *fwspec = dev->iommu_fwspec; + + if (!fwspec || fwspec->ops != &viommu_ops) + return -ENODEV; + + viommu = viommu_get_by_fwnode(fwspec->iommu_fwnode); + if (!viommu) + return -ENODEV; + + vdev = kzalloc(sizeof(*vdev), GFP_KERNEL); + if (!vdev) + return -ENOMEM; + + vdev->viommu = viommu; + fwspec->iommu_priv = vdev; + + ret = iommu_device_link(&viommu->iommu, dev); + if (ret) + goto err_free_dev; + + /* + * Last step creates a...
2018 Jun 21
0
[PATCH v2 2/5] iommu: Add virtio-iommu driver
...uct device *dev) +{ + int ret; + struct iommu_group *group; + struct viommu_endpoint *vdev; + struct viommu_dev *viommu = NULL; + struct iommu_fwspec *fwspec = dev->iommu_fwspec; + + if (!fwspec || fwspec->ops != &viommu_ops) + return -ENODEV; + + viommu = viommu_get_by_fwnode(fwspec->iommu_fwnode); + if (!viommu) + return -ENODEV; + + vdev = kzalloc(sizeof(*vdev), GFP_KERNEL); + if (!vdev) + return -ENOMEM; + + vdev->viommu = viommu; + fwspec->iommu_priv = vdev; + + ret = iommu_device_link(&viommu->iommu, dev); + if (ret) + goto err_free_dev; + + /* + * Last step creates a...
2018 Oct 12
0
[PATCH v3 5/7] iommu: Add virtio-iommu driver
...uct device *dev) +{ + int ret; + struct iommu_group *group; + struct viommu_endpoint *vdev; + struct viommu_dev *viommu = NULL; + struct iommu_fwspec *fwspec = dev->iommu_fwspec; + + if (!fwspec || fwspec->ops != &viommu_ops) + return -ENODEV; + + viommu = viommu_get_by_fwnode(fwspec->iommu_fwnode); + if (!viommu) + return -ENODEV; + + vdev = kzalloc(sizeof(*vdev), GFP_KERNEL); + if (!vdev) + return -ENOMEM; + + vdev->viommu = viommu; + fwspec->iommu_priv = vdev; + + ret = iommu_device_link(&viommu->iommu, dev); + if (ret) + goto err_free_dev; + + /* + * Last step creates a...
2018 Feb 14
0
[PATCH 1/4] iommu: Add virtio-iommu driver
..._device(struct device *dev) +{ + struct iommu_group *group; + struct viommu_endpoint *vdev; + struct viommu_dev *viommu = NULL; + struct iommu_fwspec *fwspec = dev->iommu_fwspec; + + if (!fwspec || fwspec->ops != &viommu_ops) + return -ENODEV; + + viommu = viommu_get_by_fwnode(fwspec->iommu_fwnode); + if (!viommu) + return -ENODEV; + + vdev = kzalloc(sizeof(*vdev), GFP_KERNEL); + if (!vdev) + return -ENOMEM; + + vdev->viommu = viommu; + fwspec->iommu_priv = vdev; + + /* + * Last step creates a default domain and attaches to it. Everything + * must be ready. + */ + group = iommu_g...
2019 May 30
0
[PATCH v8 5/7] iommu: Add virtio-iommu driver
...evice *dev) +{ + int ret; + struct iommu_group *group; + struct viommu_endpoint *vdev; + struct viommu_dev *viommu = NULL; + struct iommu_fwspec *fwspec = dev_iommu_fwspec_get(dev); + + if (!fwspec || fwspec->ops != &viommu_ops) + return -ENODEV; + + viommu = viommu_get_by_fwnode(fwspec->iommu_fwnode); + if (!viommu) + return -ENODEV; + + vdev = kzalloc(sizeof(*vdev), GFP_KERNEL); + if (!vdev) + return -ENOMEM; + + vdev->viommu = viommu; + fwspec->iommu_priv = vdev; + + ret = iommu_device_link(&viommu->iommu, dev); + if (ret) + goto err_free_dev; + + /* + * Last step creates a...
2018 Nov 08
0
[PATCH v3 5/7] iommu: Add virtio-iommu driver
...truct viommu_endpoint *vdev; >> + struct viommu_dev *viommu = NULL; >> + struct iommu_fwspec *fwspec = dev->iommu_fwspec; >> + >> + if (!fwspec || fwspec->ops != &viommu_ops) >> + return -ENODEV; >> + >> + viommu = viommu_get_by_fwnode(fwspec->iommu_fwnode); >> + if (!viommu) >> + return -ENODEV; >> + >> + vdev = kzalloc(sizeof(*vdev), GFP_KERNEL); >> + if (!vdev) >> + return -ENOMEM; >> + >> + vdev->viommu = viommu; >> + fwspec->iommu_priv = vdev; >> + >> + ret = iommu_device...
2018 Nov 23
2
[PATCH v5 5/7] iommu: Add virtio-iommu driver
...iommu_group *group; > + struct viommu_endpoint *vdev; > + struct viommu_dev *viommu = NULL; > + struct iommu_fwspec *fwspec = dev->iommu_fwspec; > + > + if (!fwspec || fwspec->ops != &viommu_ops) > + return -ENODEV; > + > + viommu = viommu_get_by_fwnode(fwspec->iommu_fwnode); > + if (!viommu) > + return -ENODEV; > + > + vdev = kzalloc(sizeof(*vdev), GFP_KERNEL); > + if (!vdev) > + return -ENOMEM; > + > + vdev->viommu = viommu; > + fwspec->iommu_priv = vdev; > + > + ret = iommu_device_link(&viommu->iommu, dev); > + if...
2018 Nov 23
2
[PATCH v5 5/7] iommu: Add virtio-iommu driver
...iommu_group *group; > + struct viommu_endpoint *vdev; > + struct viommu_dev *viommu = NULL; > + struct iommu_fwspec *fwspec = dev->iommu_fwspec; > + > + if (!fwspec || fwspec->ops != &viommu_ops) > + return -ENODEV; > + > + viommu = viommu_get_by_fwnode(fwspec->iommu_fwnode); > + if (!viommu) > + return -ENODEV; > + > + vdev = kzalloc(sizeof(*vdev), GFP_KERNEL); > + if (!vdev) > + return -ENOMEM; > + > + vdev->viommu = viommu; > + fwspec->iommu_priv = vdev; > + > + ret = iommu_device_link(&viommu->iommu, dev); > + if...
2017 Nov 17
0
[RFC PATCH v2 1/5] iommu: Add virtio-iommu driver
..._device(struct device *dev) +{ + struct iommu_group *group; + struct viommu_endpoint *vdev; + struct viommu_dev *viommu = NULL; + struct iommu_fwspec *fwspec = dev->iommu_fwspec; + + if (!fwspec || fwspec->ops != &viommu_ops) + return -ENODEV; + + viommu = viommu_get_by_fwnode(fwspec->iommu_fwnode); + if (!viommu) + return -ENODEV; + + vdev = kzalloc(sizeof(*vdev), GFP_KERNEL); + if (!vdev) + return -ENOMEM; + + vdev->viommu = viommu; + fwspec->iommu_priv = vdev; + + /* + * Last step creates a default domain and attaches to it. Everything + * must be ready. + */ + group = iommu_g...
2020 Apr 14
35
[PATCH v2 00/33] iommu: Move iommu_group setup to IOMMU core code
Hi, here is the second version of this patch-set. The first version with some more introductory text can be found here: https://lore.kernel.org/lkml/20200407183742.4344-1-joro at 8bytes.org/ Changes v1->v2: * Rebased to v5.7-rc1 * Re-wrote the arm-smmu changes as suggested by Robin Murphy * Re-worked the Exynos patches to hopefully not break the driver anymore * Fixed a missing