gpu/tests/gpu_buddy: Add KUnit test for gpu_buddy_allocated_addr_to_block

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Add a new KUnit test gpu_test_buddy_addr_to_block() that validates the
gpu_buddy_allocated_addr_to_block() helper which traces a address back
to its allocated buddy block.

The test covers:
- Exact address matching returns the correct allocated block
- An unallocated address inside the manager should return NULL
- An address outside the manager should return -ENXIO

v4(MattA):
- Add test for unaligned address
v3(Sashiko):
- remove unused target_addr variable
v2(Sashiko):
- Drop the mutex and lockdep annotation; standalone KUnit tests do
  not register a driver lock.

Signed-off-by: Tejas Upadhyay <tejas.upadhyay@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Signed-off-by: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com>
Link: https://patch.msgid.link/20260806053624.3215216-6-tejas.upadhyay@intel.com

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Tejas Upadhyay 2026-08-06 11:06:26 +05:30 • committed by Arunpravin Paneer Selvam

parent 151ebbc20a

commit 3de014f7de

1 changed files with 45 additions and 0 deletions

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drivers/gpu/tests/gpu_buddy_test.c

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