34 nouveau_fence_new(struct nouveau_screen *screen, struct nouveau_fence **fence,  in nouveau_fence_new()  argument
37    *fence = CALLOC_STRUCT(nouveau_fence);  in nouveau_fence_new()
38    if (!*fence)  in nouveau_fence_new()
41    (*fence)->screen = screen;  in nouveau_fence_new()
42    (*fence)->ref = 1;  in nouveau_fence_new()
43    LIST_INITHEAD(&(*fence)->work);  in nouveau_fence_new()
46       nouveau_fence_emit(*fence);  in nouveau_fence_new()
52 nouveau_fence_trigger_work(struct nouveau_fence *fence)  in nouveau_fence_trigger_work()  argument
56    LIST_FOR_EACH_ENTRY_SAFE(work, tmp, &fence->work, list) {  in nouveau_fence_trigger_work()
64 nouveau_fence_work(struct nouveau_fence *fence,  in nouveau_fence_work()  argument
69    if (!fence || fence->state == NOUVEAU_FENCE_STATE_SIGNALLED) {  in nouveau_fence_work()
79    LIST_ADD(&work->list, &fence->work);  in nouveau_fence_work()
84 nouveau_fence_emit(struct nouveau_fence *fence)  in nouveau_fence_emit()  argument
86    struct nouveau_screen *screen = fence->screen;  in nouveau_fence_emit()
88    assert(fence->state == NOUVEAU_FENCE_STATE_AVAILABLE);  in nouveau_fence_emit()
91    fence->state = NOUVEAU_FENCE_STATE_EMITTING;  in nouveau_fence_emit()
93    ++fence->ref;  in nouveau_fence_emit()
95    if (screen->fence.tail)  in nouveau_fence_emit()
96       screen->fence.tail->next = fence;  in nouveau_fence_emit()
98       screen->fence.head = fence;  in nouveau_fence_emit()
100    screen->fence.tail = fence;  in nouveau_fence_emit()
102    screen->fence.emit(&screen->base, &fence->sequence);  in nouveau_fence_emit()
104    assert(fence->state == NOUVEAU_FENCE_STATE_EMITTING);  in nouveau_fence_emit()
105    fence->state = NOUVEAU_FENCE_STATE_EMITTED;  in nouveau_fence_emit()
109 nouveau_fence_del(struct nouveau_fence *fence)  in nouveau_fence_del()  argument
112    struct nouveau_screen *screen = fence->screen;  in nouveau_fence_del()
114    if (fence->state == NOUVEAU_FENCE_STATE_EMITTED ||  in nouveau_fence_del()
115        fence->state == NOUVEAU_FENCE_STATE_FLUSHED) {  in nouveau_fence_del()
116       if (fence == screen->fence.head) {  in nouveau_fence_del()
117          screen->fence.head = fence->next;  in nouveau_fence_del()
118          if (!screen->fence.head)  in nouveau_fence_del()
119             screen->fence.tail = NULL;  in nouveau_fence_del()
121          for (it = screen->fence.head; it && it->next != fence; it = it->next);  in nouveau_fence_del()
122          it->next = fence->next;  in nouveau_fence_del()
123          if (screen->fence.tail == fence)  in nouveau_fence_del()
124             screen->fence.tail = it;  in nouveau_fence_del()
128    if (!LIST_IS_EMPTY(&fence->work)) {  in nouveau_fence_del()
130       nouveau_fence_trigger_work(fence);  in nouveau_fence_del()
133    FREE(fence);  in nouveau_fence_del()
139    struct nouveau_fence *fence;  in nouveau_fence_update()  local
141    u32 sequence = screen->fence.update(&screen->base);  in nouveau_fence_update()
143    if (screen->fence.sequence_ack == sequence)  in nouveau_fence_update()
145    screen->fence.sequence_ack = sequence;  in nouveau_fence_update()
147    for (fence = screen->fence.head; fence; fence = next) {  in nouveau_fence_update()
148       next = fence->next;  in nouveau_fence_update()
149       sequence = fence->sequence;  in nouveau_fence_update()
151       fence->state = NOUVEAU_FENCE_STATE_SIGNALLED;  in nouveau_fence_update()
153       nouveau_fence_trigger_work(fence);  in nouveau_fence_update()
154       nouveau_fence_ref(NULL, &fence);  in nouveau_fence_update()
156       if (sequence == screen->fence.sequence_ack)  in nouveau_fence_update()
159    screen->fence.head = next;  in nouveau_fence_update()
161       screen->fence.tail = NULL;  in nouveau_fence_update()
164       for (fence = next; fence; fence = fence->next)  in nouveau_fence_update()
165          if (fence->state == NOUVEAU_FENCE_STATE_EMITTED)  in nouveau_fence_update()
166             fence->state = NOUVEAU_FENCE_STATE_FLUSHED;  in nouveau_fence_update()
173 nouveau_fence_signalled(struct nouveau_fence *fence)  in nouveau_fence_signalled()  argument
175    struct nouveau_screen *screen = fence->screen;  in nouveau_fence_signalled()
177    if (fence->state >= NOUVEAU_FENCE_STATE_EMITTED)  in nouveau_fence_signalled()
180    return fence->state == NOUVEAU_FENCE_STATE_SIGNALLED;  in nouveau_fence_signalled()
184 nouveau_fence_wait(struct nouveau_fence *fence)  in nouveau_fence_wait()  argument
186    struct nouveau_screen *screen = fence->screen;  in nouveau_fence_wait()
190    assert(fence->state != NOUVEAU_FENCE_STATE_EMITTING);  in nouveau_fence_wait()
192    if (fence->state < NOUVEAU_FENCE_STATE_EMITTED) {  in nouveau_fence_wait()
193       nouveau_fence_emit(fence);  in nouveau_fence_wait()
195       if (fence == screen->fence.current)  in nouveau_fence_wait()
196          nouveau_fence_new(screen, &screen->fence.current, FALSE);  in nouveau_fence_wait()
198    if (fence->state < NOUVEAU_FENCE_STATE_FLUSHED)  in nouveau_fence_wait()
204       if (fence->state == NOUVEAU_FENCE_STATE_SIGNALLED)  in nouveau_fence_wait()
214                 fence->sequence,  in nouveau_fence_wait()
215                 screen->fence.sequence_ack, screen->fence.sequence);  in nouveau_fence_wait()
223    if (screen->fence.current->state < NOUVEAU_FENCE_STATE_EMITTING)  in nouveau_fence_next()
224       nouveau_fence_emit(screen->fence.current);  in nouveau_fence_next()
226    nouveau_fence_ref(NULL, &screen->fence.current);  in nouveau_fence_next()
228    nouveau_fence_new(screen, &screen->fence.current, FALSE);  in nouveau_fence_next()