drm/tyr: add a kernel buffer object

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Introduce a buffer object type (KernelBo) for internal driver allocations
that are managed by the kernel rather than userspace.

KernelBo wraps a GEM shmem object and automatically handles GPU virtual
address space mapping during creation and unmapping on drop. This provides
a safe and convenient way for the driver to both allocate and clean up
internal buffers for kernel-managed resources.

Co-developed-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Signed-off-by: Deborah Brouwer <deborah.brouwer@collabora.com>
Link: https://patch.msgid.link/20260728-fw-boot-b4-v10-5-9187aefa3f2f@collabora.com
Signed-off-by: Alice Ryhl <aliceryhl@google.com>

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Deborah Brouwer 2026-07-28 11:39:27 -07:00 • committed by Alice Ryhl

parent f2dc32d5a1

commit e38e457b59

1 changed files with 109 additions and 4 deletions

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drivers/gpu/drm/tyr/gem.rs

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