diff options
Diffstat (limited to 'drivers/gpu/drm/i915/gt/intel_context.c')
| -rw-r--r-- | drivers/gpu/drm/i915/gt/intel_context.c | 61 |
1 files changed, 51 insertions, 10 deletions
diff --git a/drivers/gpu/drm/i915/gt/intel_context.c b/drivers/gpu/drm/i915/gt/intel_context.c index 17ca4dc4d0cb..5634d14052bc 100644 --- a/drivers/gpu/drm/i915/gt/intel_context.c +++ b/drivers/gpu/drm/i915/gt/intel_context.c @@ -240,6 +240,8 @@ int __intel_context_do_pin_ww(struct intel_context *ce, if (err) goto err_post_unpin; + intel_engine_pm_might_get(ce->engine); + if (unlikely(intel_context_is_closed(ce))) { err = -ENOENT; goto err_unlock; @@ -395,19 +397,22 @@ intel_context_init(struct intel_context *ce, struct intel_engine_cs *engine) spin_lock_init(&ce->guc_state.lock); INIT_LIST_HEAD(&ce->guc_state.fences); + INIT_LIST_HEAD(&ce->guc_state.requests); + + ce->guc_id.id = GUC_INVALID_LRC_ID; + INIT_LIST_HEAD(&ce->guc_id.link); - spin_lock_init(&ce->guc_active.lock); - INIT_LIST_HEAD(&ce->guc_active.requests); + INIT_LIST_HEAD(&ce->destroyed_link); - ce->guc_id = GUC_INVALID_LRC_ID; - INIT_LIST_HEAD(&ce->guc_id_link); + INIT_LIST_HEAD(&ce->parallel.child_list); /* * Initialize fence to be complete as this is expected to be complete * unless there is a pending schedule disable outstanding. */ - i915_sw_fence_init(&ce->guc_blocked, sw_fence_dummy_notify); - i915_sw_fence_commit(&ce->guc_blocked); + i915_sw_fence_init(&ce->guc_state.blocked, + sw_fence_dummy_notify); + i915_sw_fence_commit(&ce->guc_state.blocked); i915_active_init(&ce->active, __intel_context_active, __intel_context_retire, 0); @@ -415,13 +420,20 @@ intel_context_init(struct intel_context *ce, struct intel_engine_cs *engine) void intel_context_fini(struct intel_context *ce) { + struct intel_context *child, *next; + if (ce->timeline) intel_timeline_put(ce->timeline); i915_vm_put(ce->vm); + /* Need to put the creation ref for the children */ + if (intel_context_is_parent(ce)) + for_each_child_safe(ce, child, next) + intel_context_put(child); + mutex_destroy(&ce->pin_mutex); i915_active_fini(&ce->active); - i915_sw_fence_fini(&ce->guc_blocked); + i915_sw_fence_fini(&ce->guc_state.blocked); } void i915_context_module_exit(void) @@ -517,24 +529,53 @@ retry: struct i915_request *intel_context_find_active_request(struct intel_context *ce) { + struct intel_context *parent = intel_context_to_parent(ce); struct i915_request *rq, *active = NULL; unsigned long flags; GEM_BUG_ON(!intel_engine_uses_guc(ce->engine)); - spin_lock_irqsave(&ce->guc_active.lock, flags); - list_for_each_entry_reverse(rq, &ce->guc_active.requests, + /* + * We search the parent list to find an active request on the submitted + * context. The parent list contains the requests for all the contexts + * in the relationship so we have to do a compare of each request's + * context. + */ + spin_lock_irqsave(&parent->guc_state.lock, flags); + list_for_each_entry_reverse(rq, &parent->guc_state.requests, sched.link) { + if (rq->context != ce) + continue; if (i915_request_completed(rq)) break; active = rq; } - spin_unlock_irqrestore(&ce->guc_active.lock, flags); + spin_unlock_irqrestore(&parent->guc_state.lock, flags); return active; } +void intel_context_bind_parent_child(struct intel_context *parent, + struct intel_context *child) +{ + /* + * Callers responsibility to validate that this function is used + * correctly but we use GEM_BUG_ON here ensure that they do. + */ + GEM_BUG_ON(!intel_engine_uses_guc(parent->engine)); + GEM_BUG_ON(intel_context_is_pinned(parent)); + GEM_BUG_ON(intel_context_is_child(parent)); + GEM_BUG_ON(intel_context_is_pinned(child)); + GEM_BUG_ON(intel_context_is_child(child)); + GEM_BUG_ON(intel_context_is_parent(child)); + + parent->parallel.child_index = parent->parallel.number_children++; + list_add_tail(&child->parallel.child_link, + &parent->parallel.child_list); + child->parallel.parent = parent; +} + #if IS_ENABLED(CONFIG_DRM_I915_SELFTEST) #include "selftest_context.c" #endif |