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- TODO
- =====
- - Add a test case where the only evictable BO is busy
- - Update eviction tests so they use parametrized "from" memory type
- - Improve mock manager's implementation, e.g. allocate a block of
- dummy memory that can be used when testing page mapping functions
- - Suggestion: Add test cases with external BOs
- - Suggestion: randomize the number and size of tested buffers in
- ttm_bo_validate()
- - Agree on the naming convention
- - Rewrite the mock manager: drop use_tt and manage mock memory using
- drm_mm manager
- Notes and gotchas
- =================
- - These tests are built and run with a UML kernel, because
- 1) We are interested in hardware-independent testing
- 2) We don't want to have actual DRM devices interacting with TTM
- at the same time as the test one. Getting these to work in
- parallel would require some time (...and that's a "todo" in itself!)
- - Triggering ttm_bo_vm_ops callbacks from KUnit (i.e. kernel) might be
- a challenge, but is worth trying. Look at selftests like
- i915/gem/selftests/i915_gem_mman.c for inspiration
- - The test suite uses UML where ioremap() call returns NULL, meaning that
- ttm_bo_ioremap() can't be tested, unless we find a way to stub it
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