diff options
Diffstat (limited to 'drivers/gpu/drm/i915/gt')
| -rw-r--r-- | drivers/gpu/drm/i915/gt/intel_context.c | 19 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/gt/intel_engine_pm.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/gt/intel_timeline.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/i915/gt/selftests/mock_timeline.c | 2 |
4 files changed, 3 insertions, 22 deletions
diff --git a/drivers/gpu/drm/i915/gt/intel_context.c b/drivers/gpu/drm/i915/gt/intel_context.c index ef7bc41ffffa..b5e9c35ec6b8 100644 --- a/drivers/gpu/drm/i915/gt/intel_context.c +++ b/drivers/gpu/drm/i915/gt/intel_context.c @@ -310,27 +310,8 @@ int intel_context_prepare_remote_request(struct intel_context *ce, GEM_BUG_ON(rq->hw_context == ce); if (rcu_access_pointer(rq->timeline) != tl) { /* timeline sharing! */ - /* - * Ideally, we just want to insert our foreign fence as - * a barrier into the remove context, such that this operation - * occurs after all current operations in that context, and - * all future operations must occur after this. - * - * Currently, the timeline->last_request tracking is guarded - * by its mutex and so we must obtain that to atomically - * insert our barrier. However, since we already hold our - * timeline->mutex, we must be careful against potential - * inversion if we are the kernel_context as the remote context - * will itself poke at the kernel_context when it needs to - * unpin. Ergo, if already locked, we drop both locks and - * try again (through the magic of userspace repeating EAGAIN). - */ - if (!mutex_trylock(&tl->mutex)) - return -EAGAIN; - /* Queue this switch after current activity by this context. */ err = i915_active_fence_set(&tl->last_request, rq); - mutex_unlock(&tl->mutex); if (err) return err; } diff --git a/drivers/gpu/drm/i915/gt/intel_engine_pm.c b/drivers/gpu/drm/i915/gt/intel_engine_pm.c index 0e1ad4a4bd97..21183ad87368 100644 --- a/drivers/gpu/drm/i915/gt/intel_engine_pm.c +++ b/drivers/gpu/drm/i915/gt/intel_engine_pm.c @@ -183,7 +183,7 @@ static void call_idle_barriers(struct intel_engine_cs *engine) container_of((struct list_head *)node, typeof(*cb), node); - cb->func(NULL, cb); + cb->func(ERR_PTR(-EAGAIN), cb); } } diff --git a/drivers/gpu/drm/i915/gt/intel_timeline.c b/drivers/gpu/drm/i915/gt/intel_timeline.c index c1d2419444f8..038e05a6336c 100644 --- a/drivers/gpu/drm/i915/gt/intel_timeline.c +++ b/drivers/gpu/drm/i915/gt/intel_timeline.c @@ -254,7 +254,7 @@ int intel_timeline_init(struct intel_timeline *timeline, mutex_init(&timeline->mutex); - INIT_ACTIVE_FENCE(&timeline->last_request, &timeline->mutex); + INIT_ACTIVE_FENCE(&timeline->last_request); INIT_LIST_HEAD(&timeline->requests); i915_syncmap_init(&timeline->sync); diff --git a/drivers/gpu/drm/i915/gt/selftests/mock_timeline.c b/drivers/gpu/drm/i915/gt/selftests/mock_timeline.c index 2a77c051f36a..aeb1d1f616e8 100644 --- a/drivers/gpu/drm/i915/gt/selftests/mock_timeline.c +++ b/drivers/gpu/drm/i915/gt/selftests/mock_timeline.c @@ -15,7 +15,7 @@ void mock_timeline_init(struct intel_timeline *timeline, u64 context) mutex_init(&timeline->mutex); - INIT_ACTIVE_FENCE(&timeline->last_request, &timeline->mutex); + INIT_ACTIVE_FENCE(&timeline->last_request); INIT_LIST_HEAD(&timeline->requests); i915_syncmap_init(&timeline->sync); |