abled.
>
> Signed-off-by: Michael S. Tsirkin
> ---
> drivers/iommu/virtio-iommu.c | 2 +-
Reviewed-by: Jean-Philippe Brucker
Hi Felix,
On Tue, Mar 09, 2021 at 11:30:19AM -0500, Felix Kuehling wrote:
> > I think the proper fix would be to not rely on custom hooks into a
> > particular
> > IOMMU driver, but to instead ensure that the amdgpu driver can do everything
> > it needs through the regular linux/iommu.h
problem could happen on the error path of
bind(), so uninstall the IRQ handler there as well.
Fixes: bbbe775ec5b5 ("drm: Add support for Amlogic Meson Graphic Controller")
Signed-off-by: Jean-Philippe Brucker
---
drivers/gpu/drm/meson/meson_drv.c | 5 -
1 file changed, 4 insert
:
[ 5194.791349] drm_dev_unregister+0x1c/0x118 [drm]
[ 5194.795848] meson_drv_unbind+0x50/0x78 [meson_drm]
Retrieve the right pointer in meson_drv_unbind().
Fixes: bbbe775ec5b5 ("drm: Add support for Amlogic Meson Graphic Controller")
Signed-off-by: Jean-Philippe Brucker
---
drive
Hi Jordan,
Thanks for the patches, I finally got around testing them with SMMUv3.
It's an important feature, arguably more than SVA itself. I could pick
this one as part of the SVA series, what do you think?
Although I probably would have done the same, I dislike the interface
because it forces
On 21/02/18 22:59, Jordan Crouse wrote:
[...]
> +int iommu_sva_alloc_pasid(struct iommu_domain *domain, struct device *dev)
> +{
> + int ret, pasid;
> + struct io_pasid *io_pasid;
> +
> + if (!domain->ops->pasid_alloc || !domain->ops->pasid_free)
> + return -ENODEV;
> +
> +
On 21/02/18 22:59, Jordan Crouse wrote:
[...]> +static int install_pasid_cb(int pasid, u64 ttbr, u32 asid, void *data)
> +{
> + struct pasid_entry *entry = kzalloc(sizeof(*entry), GFP_KERNEL);
> +
> + if (!entry)
> + return -ENOMEM;
> +
> + entry->pasid = pasid;
> +
Hi Jordan,
Thank you for this, SMMUv3 and virtio-iommu need these SVA patches as well.
On 21/02/18 22:59, Jordan Crouse wrote:
[...]> diff --git a/include/linux/iommu.h b/include/linux/iommu.h
> index e2c49e583d8d..e998389cf195 100644
> --- a/include/linux/iommu.h
> +++ b/include/linux/iommu.h
>
Hi Jordan,
On 04/10/17 20:43, Jordan Crouse wrote:
> Trying to start back up the conversation about multiple address
> spaces for IOMMU devices. If you will remember Jean-Philippe posted
> some patches back in February for SVM on arm-smmu-v3.
>
> For quite some time the downstream Snapdragon
