diff options
| author | Matthew Brost <matthew.brost@intel.com> | 2023-12-05 10:39:54 -0800 |
|---|---|---|
| committer | Rodrigo Vivi <rodrigo.vivi@intel.com> | 2023-12-21 11:46:09 -0500 |
| commit | eb9702ad29863c1ae41d17d8504c7444f280dfff (patch) | |
| tree | 797ec928e909153489844a892caa6c56984e9bd4 /drivers/gpu/drm/xe/xe_exec_queue.c | |
| parent | f5783b5026f76083ef4c53f6240619bd5c7bb9a5 (diff) | |
drm/xe: Allow num_batch_buffer / num_binds == 0 in IOCTLs
The idea being out-syncs can signal indicating all previous operations
on the bind queue are complete. An example use case of this would be
support for implementing vkQueueWaitIdle easily.
All in-syncs are waited on before signaling out-syncs. This is
implemented by forming a composite software fence of in-syncs and
installing this fence in the out-syncs and exec queue last fence slot.
The last fence must be added as a dependency for jobs on user exec
queues as it is possible for the last fence to be a composite software
fence (unordered, ioctl with zero bb or binds) rather than hardware
fence (ordered, previous job on queue).
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Diffstat (limited to 'drivers/gpu/drm/xe/xe_exec_queue.c')
| -rw-r--r-- | drivers/gpu/drm/xe/xe_exec_queue.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/gpu/drm/xe/xe_exec_queue.c b/drivers/gpu/drm/xe/xe_exec_queue.c index 85bc25fe99ed..eeb9605dd45f 100644 --- a/drivers/gpu/drm/xe/xe_exec_queue.c +++ b/drivers/gpu/drm/xe/xe_exec_queue.c @@ -886,7 +886,10 @@ int xe_exec_queue_destroy_ioctl(struct drm_device *dev, void *data, static void xe_exec_queue_last_fence_lockdep_assert(struct xe_exec_queue *q, struct xe_vm *vm) { - lockdep_assert_held_write(&vm->lock); + if (q->flags & EXEC_QUEUE_FLAG_VM) + lockdep_assert_held(&vm->lock); + else + xe_vm_assert_held(vm); } /** |