kernel/linux.git/drivers/gpu/drm/ttm/tests, branch v6.12.80

drm/ttm/tests: Fix build failure on PREEMPT_RT

2026-04-02T11:09:28+00:00

[ Upstream commit a58d487fb1a52579d3c37544ea371da78ed70c45 ] Fix a compile error in the kunit tests when CONFIG_PREEMPT_RT is enabled, and the normal mutex is converted into a rtmutex. Reported-by: kernel test robot Closes: https://lore.kernel.org/oe-kbuild-all/202602261547.3bM6yVAS-lkp@intel.com/ Reviewed-by: Jouni Högander Link: https://patch.msgid.link/20260304085616.1216961-1-dev@lankhorst.se Signed-off-by: Maarten Lankhorst Signed-off-by: Sasha Levin

drm/ttm: Allow TTM LRU list nodes of different types

2024-07-09T10:37:32+00:00

To be able to handle list unlocking while traversing the LRU list, we want the iterators not only to point to the next position of the list traversal, but to insert themselves as list nodes at that point to work around the fact that the next node might otherwise disappear from the list while the iterator is pointing to it. These list nodes need to be easily distinguishable from other list nodes so that others traversing the list can skip over them. So declare a struct ttm_lru_item, with a struct list_head member and a type enum. This will slightly increase the size of a struct ttm_resource. Changes in previous series: - Update enum ttm_lru_item_type documentation. v3: - Introduce ttm_lru_first_res_or_null() (Christian König, Thomas Hellström) v5: - Update also the TTM test code (Xe CI). Cc: Christian König Cc: Somalapuram Amaranath Cc: Matthew Brost Cc: Signed-off-by: Thomas Hellström Reviewed-by: Matthew Brost Reviewed-by: Christian König Link: https://patchwork.freedesktop.org/patch/msgid/20240705153206.68526-2-thomas.hellstrom@linux.intel.com Signed-off-by: Christian König

drm/ttm/tests: add missing MODULE_DESCRIPTION() macros

2024-06-25T07:53:13+00:00

make allmodconfig && make W=1 C=1 reports: WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/gpu/drm/ttm/tests/ttm_device_test.o WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/gpu/drm/ttm/tests/ttm_pool_test.o WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/gpu/drm/ttm/tests/ttm_resource_test.o WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/gpu/drm/ttm/tests/ttm_tt_test.o WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/gpu/drm/ttm/tests/ttm_bo_test.o WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/gpu/drm/ttm/tests/ttm_bo_validate_test.o WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/gpu/drm/ttm/tests/ttm_mock_manager.o WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/gpu/drm/ttm/tests/ttm_kunit_helpers.o Add the missing invocations of the MODULE_DESCRIPTION() macro. Signed-off-by: Jeff Johnson Acked-by: Christian König Link: https://patchwork.freedesktop.org/patch/msgid/20240624-md-drivers-gpu-drm-ttm-tests-v2-1-76bb765e19c9@quicinc.com Signed-off-by: Christian König

drm/ttm/tests: Use u32 and u64 over uint*_t types

2024-06-24T10:31:26+00:00

Update the tests and helpers to use unsigned kernel types. Signed-off-by: Karolina Stolarek Suggested-by: Thomas Hellström Reviewed-by: Thomas Hellström Signed-off-by: Arunpravin Paneer Selvam Link: https://patchwork.freedesktop.org/patch/msgid/b36d71de78990ac5be1538cc3f735f7e40618cfe.1718192625.git.karolina.stolarek@intel.com

drm/ttm/tests: Correct modules' licenses

2024-06-24T10:31:25+00:00

The test files are GPL and MIT, so update the definitions accordingly. Signed-off-by: Karolina Stolarek Reviewed-by: Thomas Hellström Signed-off-by: Arunpravin Paneer Selvam Link: https://patchwork.freedesktop.org/patch/msgid/54cd7289db67ec396b67ef48dbb45521d56ec03c.1718192625.git.karolina.stolarek@intel.com

drm/ttm/tests: Add TODO file

2024-06-24T10:31:24+00:00

List improvements for the test suite with some notes. Signed-off-by: Karolina Stolarek Reviewed-by: Thomas Hellström Signed-off-by: Arunpravin Paneer Selvam Link: https://patchwork.freedesktop.org/patch/msgid/3856fbbeaf40078d59b45971002b8f9d0d85f8f0.1718192625.git.karolina.stolarek@intel.com

drm/ttm/tests: Add tests for ttm_tt_populate

2024-06-24T10:31:23+00:00

Add tests for functions that add and release pages to TTs. Test the swapin operation. Export ttm_tt_unpopulate, ttm_tt_swapin and ttm_tt_swapout symbols for testing purposes. Signed-off-by: Karolina Stolarek Reviewed-by: Somalapuram, Amaranath Tested-by: Somalapuram, Amaranath Signed-off-by: Arunpravin Paneer Selvam Link: https://patchwork.freedesktop.org/patch/msgid/ee42d83a472ba6bca22b4bce58f332f800891186.1718192625.git.karolina.stolarek@intel.com

drm/ttm/tests: Add eviction testing

2024-06-24T10:31:21+00:00

Add tests for ttm_bo_validate that focus on BO eviction and swapout. Update device funcs definition with eviction-related callbacks. Add alternative funcs where evict_flags() routes eviction to a domain that can't allocate resources (dubbed "busy manager" in the tests). Extract the common path of ttm_device init into a function. Signed-off-by: Karolina Stolarek Reviewed-by: Somalapuram, Amaranath Tested-by: Somalapuram, Amaranath Signed-off-by: Arunpravin Paneer Selvam Link: https://patchwork.freedesktop.org/patch/msgid/ae8e284d6c7e6bd0be259052bd4f42e07ce24641.1718192625.git.karolina.stolarek@intel.com

drm/ttm/tests: Add test cases dependent on fence signaling

2024-06-24T10:31:20+00:00

Add test cases that check how the state of dma fences in BO's reservation object influence the ttm_bo_validation() flow. Do similar tests for resource manager's move fence. Signed-off-by: Karolina Stolarek Reviewed-by: Somalapuram, Amaranath Tested-by: Somalapuram, Amaranath Signed-off-by: Arunpravin Paneer Selvam Link: https://patchwork.freedesktop.org/patch/msgid/068791a27abd05bf2605f23cc31864a22c20b308.1718192625.git.karolina.stolarek@intel.com

drm/ttm/tests: Add tests with mock resource managers

2024-06-24T10:31:17+00:00

Add mock resource manager to test ttm_bo_validate() with non-system placements. Update KConfig entry to enable DRM Buddy allocator, used by the mock manager. Update move function to do more than just assign a resource. Signed-off-by: Karolina Stolarek Tested-by: Somalapuram, Amaranath Reviewed-by: Thomas Hellström Signed-off-by: Arunpravin Paneer Selvam Link: https://patchwork.freedesktop.org/patch/msgid/664791dbb7cbada29e705d2fcaf176023f1b8649.1718192625.git.karolina.stolarek@intel.com