[PATCH 0/4] rust: Add support for reserving of ranges of IDs

Add support for reserving of ranges of IDs, with a usage in nova-core
for channel IDs. This entails adding the helpers+users of the C bitmap
API for ranges of bits, then users of that in `IdPool`, and finally a
user of `IdPool` in nova-core, `ChannelIdPool`.

This is based on drm-rust-next.

Signed-off-by: Eliot Courtney <[email protected]>
---
Eliot Courtney (4):
      rust: bitmap: use function-level cfg on kunit test
      rust: bitmap: add contiguous area operations
      rust: id_pool: add contiguous area allocation
      gpu: nova-core: add ChannelIdPool

 drivers/gpu/nova-core/gpu.rs         |   2 +
 drivers/gpu/nova-core/gpu/channel.rs | 134 +++++++++++++++++++
 rust/helpers/bitmap.c                |  22 ++++
 rust/kernel/bitmap.rs                | 244 +++++++++++++++++++++++++++++++++--
 rust/kernel/id_pool.rs               |  68 ++++++++++
 5 files changed, 456 insertions(+), 14 deletions(-)
---
base-commit: a73a398a68ca9b9e5116a617562471f16b8310c4
change-id: 20260608-chid-18fa943c6d6c

Best regards,
--  
Eliot Courtney <[email protected]>