This series adds ARef<T> support for both regular and delayed work items.

- Patches 1 and 3 actually implement the support in workqueue.rs
- Patches 2 and 4 adds a corresponding implementation in drm::Device that
  dispatches the calls to the underlying T::Data.

This was tested on Tyr, and is actually needed in order to obtain a
&drm::Device when handling work items. This is then needed in order to
allocate GEM objects inside the work handler that processes the tiler OOM
(out of memory) events. The current series sets the stage so that the above
is possible in the future.

---
Changes in v3:
- Rebase on rust-drm
- Pick up tags
- Fix import style for drm/device.rs changes
- Link to v2: https://lore.kernel.org/r/20260204-aref-workitem-v2-0-bec25b012d2a@collabora.com

Changes in v2:
- Rebased on v6.19-rc8
- Cc workqueue maintainers
- Patch 2 kept the old import style, since drm/device.rs is not yet
  converted.
- Link to v1: https://lore.kernel.org/r/20260115-aref-workitem-v1-0-9883e00f0509@collabora.com

---
Daniel Almeida (4):
      rust: workqueue: add support for ARef<T>
      rust: drm: dispatch work items to the private data
      rust: workqueue: add delayed work support for ARef<T>
      rust: drm: dispatch delayed work items to the private data

 rust/kernel/drm/device.rs | 69 ++++++++++++++++++++++++++++++++--
 rust/kernel/workqueue.rs  | 96 ++++++++++++++++++++++++++++++++++++++++++++---
 2 files changed, 156 insertions(+), 9 deletions(-)
---
base-commit: 55fd681cdd8599edc82013674cbf87c2f22d58f8
change-id: 20260115-aref-workitem-0f57e4fb81ca

Best regards,
-- 
Daniel Almeida <daniel.almeida@collabora.com>

On Tue, Mar 24, 2026 at 12:27 AM Daniel Almeida
<daniel.almeida@collabora.com> wrote:
>
> This series adds ARef<T> support for both regular and delayed work items.
>
> - Patches 1 and 3 actually implement the support in workqueue.rs
> - Patches 2 and 4 adds a corresponding implementation in drm::Device that
>   dispatches the calls to the underlying T::Data.
>
> This was tested on Tyr, and is actually needed in order to obtain a
> &drm::Device when handling work items. This is then needed in order to
> allocate GEM objects inside the work handler that processes the tiler OOM
> (out of memory) events. The current series sets the stage so that the above
> is possible in the future.

Applied to drm-rust-next. Thanks!

On Mon, Mar 23, 2026 at 08:26:58PM -0300, Daniel Almeida wrote:
> This series adds ARef<T> support for both regular and delayed work items.
> 
> - Patches 1 and 3 actually implement the support in workqueue.rs
> - Patches 2 and 4 adds a corresponding implementation in drm::Device that
>   dispatches the calls to the underlying T::Data.
> 
> This was tested on Tyr, and is actually needed in order to obtain a
> &drm::Device when handling work items. This is then needed in order to
> allocate GEM objects inside the work handler that processes the tiler OOM
> (out of memory) events. The current series sets the stage so that the above
> is possible in the future.
> 
> ---
> Changes in v3:
> - Rebase on rust-drm
> - Pick up tags
> - Fix import style for drm/device.rs changes
> - Link to v2: https://lore.kernel.org/r/20260204-aref-workitem-v2-0-bec25b012d2a@collabora.com

Thanks!

Tejun, is this something you could pick up? If so, please go ahead. It
looks good from Rust perspective. We can also pick it up through drm if
you prefer (in that case please provide an Acked-by).

Alice