kernel/linux.git/drivers/gpu/drm/ttm/tests, branch v6.19.11

drm/ttm/tests: Fix build failure on PREEMPT_RT

2026-04-02T11:25:20+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: rework pipelined eviction fence handling

2025-11-26T12:12:23+00:00

Until now ttm stored a single pipelined eviction fence which means drivers had to use a single entity for these evictions. To lift this requirement, this commit allows up to 8 entities to be used. Ideally a dma_resv object would have been used as a container of the eviction fences, but the locking rules makes it complex. dma_resv all have the same ww_class, which means "Attempting to lock more mutexes after ww_acquire_done." is an error. One alternative considered was to introduced a 2nd ww_class for specific resv to hold a single "transient" lock (= the resv lock would only be held for a short period, without taking any other locks). The other option, is to statically reserve a fence array, and extend the existing code to deal with N fences, instead of 1. The driver is still responsible to reserve the correct number of fence slots. Signed-off-by: Pierre-Eric Pelloux-Prayer Link: https://lore.kernel.org/r/20251121101315.3585-20-pierre-eric.pelloux-prayer@amd.com Reviewed-by: Christian König Signed-off-by: Christian König

drm/ttm: Replace multiple booleans with flags in device init

2025-10-31T09:14:35+00:00

Multiple consecutive boolean function arguments are usually not very readable. Replace the ones in ttm_device_init() with flags with the additional benefit of soon being able to pass in more data with just a one off code base churning cost. Signed-off-by: Tvrtko Ursulin Cc: Alex Deucher Cc: Christian König Cc: Danilo Krummrich Cc: Dave Airlie Cc: Gerd Hoffmann Cc: Joonas Lahtinen Cc: Lucas De Marchi Cc: Lyude Paul Cc: Maarten Lankhorst Cc: Maxime Ripard Cc: Rodrigo Vivi Cc: Sui Jingfeng Cc: Thomas Hellström Cc: Thomas Zimmermann Cc: Zack Rusin Acked-by: Christian König Acked-by: Zack Rusin Acked-by: Thomas Hellström # For xe Reviewed-by: Christian König Signed-off-by: Tvrtko Ursulin Link: https://lore.kernel.org/r/20251020115411.36818-4-tvrtko.ursulin@igalia.com [tursulin: fixup checkpatch while applying]

drm/ttm: Replace multiple booleans with flags in pool init

2025-10-31T09:01:08+00:00

Multiple consecutive boolean function arguments are usually not very readable. Replace the ones in ttm_pool_init() with flags with the additional benefit of soon being able to pass in more data with just this one code base churning cost. Signed-off-by: Tvrtko Ursulin Cc: Alex Deucher Cc: Christian König Cc: Thomas Hellström Reviewed-by: Christian König Signed-off-by: Tvrtko Ursulin Link: https://lore.kernel.org/r/20251020115411.36818-3-tvrtko.ursulin@igalia.com

drm/ttm: Add getter for some pool properties

2025-10-31T08:54:54+00:00

No functional change but to allow easier refactoring in the future. Signed-off-by: Tvrtko Ursulin Cc: Christian König Cc: Thomas Hellström Reviewed-by: Christian König Signed-off-by: Tvrtko Ursulin Link: https://lore.kernel.org/r/20251020115411.36818-2-tvrtko.ursulin@igalia.com

drm: include drm_print.h where needed

2025-10-31T08:34:52+00:00

There are a gazillion files that depend on drm_print.h being indirectly included via drm_buddy.h, drm_mm.h, or ttm/ttm_resource.h. In preparation for removing those includes, explicitly include drm_print.h where needed. Cc: Thomas Zimmermann Reviewed-by: Thomas Zimmermann Signed-off-by: Jani Nikula Link: https://lore.kernel.org/r/5fe67395907be33eb5199ea6d540e29fddee71c8.1761734313.git.jani.nikula@intel.com

drm/ttm: rename ttm_bo_put to _fini v3

2025-09-17T12:03:21+00:00

Give TTM BOs a separate cleanup function. No funktional change, but the next step in removing the TTM BO reference counting and replacing it with the GEM object reference counting. v2: move the code around a bit to make it clearer what's happening v3: fix nouveau_bo_fini as well Signed-off-by: Christian König Acked-by: Thomas Hellström Acked-by: Joonas Lahtinen Link: https://lore.kernel.org/r/20250909144311.1927-1-christian.koenig@amd.com

drm/ttm: remove ttm_bo_validate_swapout test

2025-07-16T09:19:20+00:00

The test is quite fragile since it tries to allocate halve available system memory + 1 page. If the system has either not enough memory to make the allocation work with other things running in parallel or to much memory so the allocation fails as to large/invalid the test will fail. Completely remove the test. We already validate swapout on the device level and that test seems to be stable. Signed-off-by: Christian König Reviewed-by: Matthew Brost Link: https://lore.kernel.org/r/20250710144129.1803-2-christian.koenig@amd.com

drm/ttm: fix locking in test ttm_bo_validate_no_placement_signaled

2025-07-16T09:17:18+00:00

The test works even without it, but lockdep starts screaming when it is activated. Trivially fix it by acquiring the lock before we try to allocate something. Signed-off-by: Christian König Reviewed-by: Matthew Brost Link: https://lore.kernel.org/r/20250710144129.1803-1-christian.koenig@amd.com

drm/ttm: Include

2025-06-16T07:02:44+00:00

Fix the compile-time warnings drivers/gpu/drm/ttm/tests/ttm_kunit_helpers.c: warning: EXPORT_SYMBOL() is used, but #include is missing drivers/gpu/drm/ttm/tests/ttm_mock_manager.c: warning: EXPORT_SYMBOL() is used, but #include is missing drivers/gpu/drm/ttm/ttm_agp_backend.c: warning: EXPORT_SYMBOL() is used, but #include is missing drivers/gpu/drm/ttm/ttm_backup.c: warning: EXPORT_SYMBOL() is used, but #include is missing drivers/gpu/drm/ttm/ttm_bo.c: warning: EXPORT_SYMBOL() is used, but #include is missing drivers/gpu/drm/ttm/ttm_bo_util.c: warning: EXPORT_SYMBOL() is used, but #include is missing drivers/gpu/drm/ttm/ttm_bo_vm.c: warning: EXPORT_SYMBOL() is used, but #include is missing drivers/gpu/drm/ttm/ttm_device.c: warning: EXPORT_SYMBOL() is used, but #include is missing drivers/gpu/drm/ttm/ttm_execbuf_util.c: warning: EXPORT_SYMBOL() is used, but #include is missing drivers/gpu/drm/ttm/ttm_pool.c: warning: EXPORT_SYMBOL() is used, but #include is missing drivers/gpu/drm/ttm/ttm_range_manager.c: warning: EXPORT_SYMBOL() is used, but #include is missing drivers/gpu/drm/ttm/ttm_resource.c: warning: EXPORT_SYMBOL() is used, but #include is missing drivers/gpu/drm/ttm/ttm_tt.c: warning: EXPORT_SYMBOL() is used, but #include is missing Signed-off-by: Thomas Zimmermann Fixes: a934a57a42f6 ("scripts/misc-check: check missing #include when W=1") Reviewed-by: André Almeida Cc: Masahiro Yamada Cc: Nathan Chancellor Link: https://lore.kernel.org/r/20250612121633.229222-10-tzimmermann@suse.de