Merge tag 'drm-rust-next-2026-01-26' of https://gitlab.freedesktop.org/drm/rust/kernel into drm-next

DRM Rust changes for v7.0-rc1

DRM:
  - Fix documentation for Registration constructors.
  - Use pin_init::zeroed() for fops initialization.
  - Annotate DRM helpers with __rust_helper.
  - Improve safety documentation for gem::Object::new().
  - Update AlwaysRefCounted imports.

MM:
  - Prevent integer overflow in page_align().

Nova (Core):
  - Prepare for Turing support. This includes parsing and handling
    Turing-specific firmware headers and sections as well as a Turing
    Falcon HAL implementation.
  - Get rid of the Result<impl PinInit<T, E>> anti-pattern.
  - Relocate initializer-specific code into the appropriate initializer.
  - Use CStr::from_bytes_until_nul() to remove custom helpers.
  - Improve handling of unexpected firmware values.
  - Clean up redundant debug prints.
  - Replace c_str!() with native Rust C-string literals.
  - Update nova-core task list.

Nova (DRM):
  - Align GEM object size to system page size.

Tyr:
  - Use generated uAPI bindings for GpuInfo.
  - Replace manual sleeps with read_poll_timeout().
  - Replace c_str!() with native Rust C-string literals.
  - Suppress warnings for unread fields.
  - Fix incorrect register name in print statement.
Signed-off-by: Dave Airlie <airlied@redhat.com>

From: "Danilo Krummrich" <dakr@kernel.org>
Link: https://patch.msgid.link/DFYW1WV6DUCG.3K8V2DAVD1Q4A@kernel.org

1 files changed, 15 insertions, 44 deletions

diff --git a/Documentation/gpu/nova/core/todo.rst b/Documentation/gpu/nova/core/todo.rst
index 35cc7c31d423..d1964eb645e2 100644
--- a/Documentation/gpu/nova/core/todo.rst
+++ b/Documentation/gpu/nova/core/todo.rst
@@ -41,8 +41,15 @@ trait [1] from the num crate.
 Having this generalization also helps with implementing a generic macro that
 automatically generates the corresponding mappings between a value and a number.
 
+FromPrimitive support has been worked on in the past, but hasn't been followed
+since then [1].
+
+There also have been considerations of ToPrimitive [2].
+
 | Complexity: Beginner
 | Link: https://docs.rs/num/latest/num/trait.FromPrimitive.html
+| Link: https://lore.kernel.org/all/cover.1750689857.git.y.j3ms.n@gmail.com/ [1]
+| Link: https://rust-for-linux.zulipchat.com/#narrow/channel/288089-General/topic/Implement.20.60FromPrimitive.60.20trait.20.2B.20derive.20macro.20for.20nova-core/with/541971854 [2]
 
 Generic register abstraction [REGA]
 -----------------------------------
@@ -134,21 +141,6 @@ A `num` core kernel module is being designed to provide these operations.
 | Complexity: Intermediate
 | Contact: Alexandre Courbot
 
-IRQ abstractions
-----------------
-
-Rust abstractions for IRQ handling.
-
-There is active ongoing work from Daniel Almeida [1] for the "core" abstractions
-to request IRQs.
-
-Besides optional review and testing work, the required ``pci::Device`` code
-around those core abstractions needs to be worked out.
-
-| Complexity: Intermediate
-| Link: https://lore.kernel.org/lkml/20250122163932.46697-1-daniel.almeida@collabora.com/ [1]
-| Contact: Daniel Almeida
-
 Page abstraction for foreign pages
 ----------------------------------
 
@@ -161,40 +153,16 @@ There is active onging work from Abdiel Janulgue [1] and Lina [2].
 | Link: https://lore.kernel.org/linux-mm/20241119112408.779243-1-abdiel.janulgue@gmail.com/ [1]
 | Link: https://lore.kernel.org/rust-for-linux/20250202-rust-page-v1-0-e3170d7fe55e@asahilina.net/ [2]
 
-Scatterlist / sg_table abstractions
------------------------------------
-
-Rust abstractions for scatterlist / sg_table.
-
-There is preceding work from Abdiel Janulgue, which hasn't made it to the
-mailing list yet.
-
-| Complexity: Intermediate
-| Contact: Abdiel Janulgue
-
 PCI MISC APIs
 -------------
 
-Extend the existing PCI device / driver abstractions by SR-IOV, config space,
-capability, MSI API abstractions.
-
-| Complexity: Beginner
+Extend the existing PCI device / driver abstractions by SR-IOV, capability, MSI
+API abstractions.
 
-XArray bindings [XARR]
-----------------------
-
-We need bindings for `xa_alloc`/`xa_alloc_cyclic` in order to generate the
-auxiliary device IDs.
-
-| Complexity: Intermediate
+SR-IOV [1] is work in progress.
 
-Debugfs abstractions
---------------------
-
-Rust abstraction for debugfs APIs.
-
-| Reference: Export GSP log buffers
-| Complexity: Intermediate
+| Complexity: Beginner
+| Link: https://lore.kernel.org/all/20251119-rust-pci-sriov-v1-0-883a94599a97@redhat.com/ [1]
 
 GPU (general)
 =============
@@ -233,7 +201,10 @@ Some possible options:
     - maple_tree
   - native Rust collections
 
+There is work in progress for using drm_buddy [1].
+
 | Complexity: Advanced
+| Link: https://lore.kernel.org/all/20251219203805.1246586-4-joelagnelf@nvidia.com/ [1]
 
 Instance Memory
 ---------------