Displaying 3 results from an estimated 3 matches for "of_iommu_configure".
2020 Feb 14
1
[PATCH 2/3] PCI: Add DMA configuration for virtual platforms
...frastructure is
> able to deal with multiple DMA configuration methods.
Urgh, it's already been established[1] that having IOMMU setup tied to
DMA configuration at driver probe time is not just conceptually wrong
but actually broken, so the concept here worries me a bit. In a world
where of_iommu_configure() and friends are being called much earlier
around iommu_probe_device() time, how badly will this fall apart?
Robin.
[1]
https://lore.kernel.org/linux-iommu/9625faf4-48ef-2dd3-d82f-931d9cf26976 at huawei.com/
> Signed-off-by: Jean-Philippe Brucker <jean-philippe at linaro.org>
> --...
2020 May 06
1
[PATCH v5] iommu/virtio: Use page size bitmap supported by endpoint
On Tue, May 05, 2020 at 03:00:04PM +0530, Bharat Bhushan wrote:
> Different endpoint can support different page size, probe
> endpoint if it supports specific page size otherwise use
> global page sizes.
>
> Signed-off-by: Bharat Bhushan <bbhushan2 at marvell.com>
> ---
> v4->v5:
> - Rebase to Linux v5.7-rc4
>
> v3->v4:
> - Fix whitespace error
>
2020 Feb 14
5
[PATCH 0/3] virtio-iommu on non-devicetree platforms
Add topology description to the virtio-iommu driver and enable x86
platforms. Since the RFC [1] I've mostly given up on ACPI tables, since
the internal discussions seem to have reached a dead end. The built-in
topology description presented here isn't ideal, but it is simple to
implement and doesn't impose a dependency on ACPI or device-tree, which
can be beneficial to lightweight