diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/core/core/event.c')
-rw-r--r-- | drivers/gpu/drm/nouveau/core/core/event.c | 83 |
1 files changed, 58 insertions, 25 deletions
diff --git a/drivers/gpu/drm/nouveau/core/core/event.c b/drivers/gpu/drm/nouveau/core/core/event.c index 3f3c76581a9e..ae81d3b5d8b7 100644 --- a/drivers/gpu/drm/nouveau/core/core/event.c +++ b/drivers/gpu/drm/nouveau/core/core/event.c @@ -28,14 +28,20 @@ nouveau_event_put(struct nouveau_eventh *handler) { struct nouveau_event *event = handler->event; unsigned long flags; - if (__test_and_clear_bit(NVKM_EVENT_ENABLE, &handler->flags)) { - spin_lock_irqsave(&event->refs_lock, flags); - if (!--event->index[handler->index].refs) { + u32 m, t; + + if (!__test_and_clear_bit(NVKM_EVENT_ENABLE, &handler->flags)) + return; + + spin_lock_irqsave(&event->refs_lock, flags); + for (m = handler->types; t = __ffs(m), m; m &= ~(1 << t)) { + if (!--event->refs[handler->index * event->types_nr + t]) { if (event->disable) - event->disable(event, handler->index); + event->disable(event, 1 << t, handler->index); } - spin_unlock_irqrestore(&event->refs_lock, flags); + } + spin_unlock_irqrestore(&event->refs_lock, flags); } void @@ -43,14 +49,20 @@ nouveau_event_get(struct nouveau_eventh *handler) { struct nouveau_event *event = handler->event; unsigned long flags; - if (!__test_and_set_bit(NVKM_EVENT_ENABLE, &handler->flags)) { - spin_lock_irqsave(&event->refs_lock, flags); - if (!event->index[handler->index].refs++) { + u32 m, t; + + if (__test_and_set_bit(NVKM_EVENT_ENABLE, &handler->flags)) + return; + + spin_lock_irqsave(&event->refs_lock, flags); + for (m = handler->types; t = __ffs(m), m; m &= ~(1 << t)) { + if (!event->refs[handler->index * event->types_nr + t]++) { if (event->enable) - event->enable(event, handler->index); + event->enable(event, 1 << t, handler->index); } - spin_unlock_irqrestore(&event->refs_lock, flags); + } + spin_unlock_irqrestore(&event->refs_lock, flags); } static void @@ -65,38 +77,47 @@ nouveau_event_fini(struct nouveau_eventh *handler) } static int -nouveau_event_init(struct nouveau_event *event, int index, - int (*func)(void *, int), void *priv, +nouveau_event_init(struct nouveau_event *event, u32 types, int index, + int (*func)(void *, u32, int), void *priv, struct nouveau_eventh *handler) { unsigned long flags; + if (types & ~((1 << event->types_nr) - 1)) + return -EINVAL; if (index >= event->index_nr) return -EINVAL; handler->event = event; handler->flags = 0; + handler->types = types; handler->index = index; handler->func = func; handler->priv = priv; spin_lock_irqsave(&event->list_lock, flags); - list_add_tail(&handler->head, &event->index[index].list); + list_add_tail(&handler->head, &event->list[index]); spin_unlock_irqrestore(&event->list_lock, flags); return 0; } int -nouveau_event_new(struct nouveau_event *event, int index, - int (*func)(void *, int), void *priv, +nouveau_event_new(struct nouveau_event *event, u32 types, int index, + int (*func)(void *, u32, int), void *priv, struct nouveau_eventh **phandler) { struct nouveau_eventh *handler; int ret = -ENOMEM; + if (event->check) { + ret = event->check(event, types, index); + if (ret) + return ret; + } + handler = *phandler = kmalloc(sizeof(*handler), GFP_KERNEL); if (handler) { - ret = nouveau_event_init(event, index, func, priv, handler); + ret = nouveau_event_init(event, types, index, func, priv, handler); if (ret) kfree(handler); } @@ -116,7 +137,7 @@ nouveau_event_ref(struct nouveau_eventh *handler, struct nouveau_eventh **ref) } void -nouveau_event_trigger(struct nouveau_event *event, int index) +nouveau_event_trigger(struct nouveau_event *event, u32 types, int index) { struct nouveau_eventh *handler; unsigned long flags; @@ -125,10 +146,15 @@ nouveau_event_trigger(struct nouveau_event *event, int index) return; spin_lock_irqsave(&event->list_lock, flags); - list_for_each_entry(handler, &event->index[index].list, head) { - if (test_bit(NVKM_EVENT_ENABLE, &handler->flags) && - handler->func(handler->priv, index) == NVKM_EVENT_DROP) - nouveau_event_put(handler); + list_for_each_entry(handler, &event->list[index], head) { + if (!test_bit(NVKM_EVENT_ENABLE, &handler->flags)) + continue; + if (!(handler->types & types)) + continue; + if (handler->func(handler->priv, handler->types & types, index) + != NVKM_EVENT_DROP) + continue; + nouveau_event_put(handler); } spin_unlock_irqrestore(&event->list_lock, flags); } @@ -144,20 +170,27 @@ nouveau_event_destroy(struct nouveau_event **pevent) } int -nouveau_event_create(int index_nr, struct nouveau_event **pevent) +nouveau_event_create(int types_nr, int index_nr, struct nouveau_event **pevent) { struct nouveau_event *event; int i; - event = *pevent = kzalloc(sizeof(*event) + index_nr * - sizeof(event->index[0]), GFP_KERNEL); + event = *pevent = kzalloc(sizeof(*event) + (index_nr * types_nr) * + sizeof(event->refs[0]), GFP_KERNEL); if (!event) return -ENOMEM; + event->list = kmalloc(sizeof(*event->list) * index_nr, GFP_KERNEL); + if (!event->list) { + kfree(event); + return -ENOMEM; + } + spin_lock_init(&event->list_lock); spin_lock_init(&event->refs_lock); for (i = 0; i < index_nr; i++) - INIT_LIST_HEAD(&event->index[i].list); + INIT_LIST_HEAD(&event->list[i]); + event->types_nr = types_nr; event->index_nr = index_nr; return 0; } |