Files
linux/include/linux
Tejas Upadhyay 35b535db69 drm/buddy: Integrate lockdep annotations for gpu buddy manager
gpu_buddy APIs are expected to be called with the driver-provided lock
held, but there is no runtime enforcement of this contract. Add lockdep
annotations to catch locking violations early.

Introduce gpu_buddy_driver_set_lock() for the driver to register the
lock that protects the buddy manager. Add gpu_buddy_driver_lock_held()
assertions to all exported gpu_buddy and drm_buddy APIs that
access/modify the manager state. The lock_dep_map field is only compiled
in when CONFIG_LOCKDEP is enabled, adding zero overhead to production
builds.

Wire up xe_ttm_vram_mgr to register its mutex with the buddy manager
after initialization.

Assisted-by: Copilot:claude-opus-4.6
Suggested-by: Matthew Brost <matthew.brost@intel.com>
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/20260508065544.4049240-2-tejas.upadhyay@intel.com
2026-05-08 19:16:19 +05:30
..
2026-02-11 13:44:47 +01:00
2025-10-22 07:54:33 +02:00
2026-04-02 15:52:49 +02:00
2026-03-18 15:11:40 +05:30
2026-03-19 23:55:27 +01:00
2026-01-20 19:44:19 -08:00
2026-04-03 16:53:50 -04:00
2026-04-07 08:22:24 -06:00
2025-11-21 11:21:31 +01:00
2026-04-04 08:10:37 -06:00
2026-03-05 18:15:58 -10:00
2026-03-16 13:16:49 +01:00
2026-03-02 17:08:05 -05:00
2025-09-23 11:13:22 +02:00
2026-03-31 19:15:21 +02:00
2025-10-22 07:55:00 +02:00
2025-11-01 12:44:49 -05:00
2025-12-13 20:04:32 +12:00
2026-04-16 07:03:40 -07:00
2026-03-23 13:33:51 -04:00
2026-04-07 17:38:07 +02:00
2026-02-19 09:12:05 +01:00
2025-12-23 11:23:10 -08:00
2026-02-27 16:40:16 +01:00
2025-10-29 18:28:29 -07:00
2025-09-13 17:32:44 -07:00
2026-01-12 16:52:09 +01:00
2025-11-04 12:36:02 +01:00
2026-02-23 13:43:16 -08:00
2026-02-06 07:29:14 -07:00
2025-10-22 07:53:15 +02:00
2025-09-23 11:13:22 +02:00
2026-04-05 13:53:28 -07:00
2026-01-05 16:43:31 +01:00
2026-01-11 06:09:11 -10:00
2026-04-01 10:19:41 +02:00
2026-04-03 16:53:50 -04:00
2026-04-03 16:53:50 -04:00
2026-03-18 09:59:57 +00:00
2026-04-06 11:39:54 +02:00
2026-04-05 13:53:00 -07:00
2025-11-23 12:30:40 +01:00
2026-03-17 15:34:47 +05:30
2025-12-29 11:53:38 +01:00
2026-01-26 20:02:27 -08:00
2025-09-17 15:58:29 -04:00
2026-03-08 11:06:53 +01:00
2025-09-23 13:28:20 -04:00
2025-11-05 23:58:20 +01:00
2025-11-03 17:41:17 +01:00
2026-03-27 07:35:05 -07:00
2026-01-30 11:34:34 +00:00
2026-04-05 13:53:10 -07:00
2026-02-10 11:39:31 +01:00
2026-02-10 11:39:30 +01:00
2026-01-11 06:09:11 -10:00
2026-04-20 11:35:17 -07:00
2025-10-30 18:35:26 +01:00
2025-10-24 21:39:27 +02:00
2025-10-31 10:16:23 +01:00
2026-03-27 17:14:31 -07:00
2026-02-27 16:40:16 +01:00
2026-01-11 06:09:11 -10:00
2026-03-08 11:06:53 +01:00
2025-11-28 09:21:18 -07:00
2026-03-31 07:04:00 -06:00
2026-03-25 20:11:29 +01:00
2026-03-23 12:41:58 +01:00
2026-03-13 08:22:54 +01:00
2026-03-12 15:05:34 +01:00
2026-04-13 08:39:51 -07:00
2026-04-06 09:06:39 +02:00
2025-11-03 17:41:18 +01:00
2026-03-30 16:43:24 -06:00
2026-01-30 18:26:59 -08:00