1TODO 2===== 3 4- Add a test case where the only evictable BO is busy 5- Update eviction tests so they use parametrized "from" memory type 6- Improve mock manager's implementation, e.g. allocate a block of 7 dummy memory that can be used when testing page mapping functions 8- Suggestion: Add test cases with external BOs 9- Suggestion: randomize the number and size of tested buffers in 10 ttm_bo_validate() 11- Agree on the naming convention 12- Rewrite the mock manager: drop use_tt and manage mock memory using 13 drm_mm manager 14 15Notes and gotchas 16================= 17 18- These tests are built and run with a UML kernel, because 19 1) We are interested in hardware-independent testing 20 2) We don't want to have actual DRM devices interacting with TTM 21 at the same time as the test one. Getting these to work in 22 parallel would require some time (...and that's a "todo" in itself!) 23- Triggering ttm_bo_vm_ops callbacks from KUnit (i.e. kernel) might be 24 a challenge, but is worth trying. Look at selftests like 25 i915/gem/selftests/i915_gem_mman.c for inspiration 26- The test suite uses UML where ioremap() call returns NULL, meaning that 27 ttm_bo_ioremap() can't be tested, unless we find a way to stub it 28