diff options
author | Sinclair Yeh <syeh@vmware.com> | 2016-05-24 09:01:04 -0700 |
---|---|---|
committer | Sinclair Yeh <syeh@vmware.com> | 2017-02-23 09:55:59 -0800 |
commit | 2ca7c61faa5715f3116a29b2176bee348773dc77 (patch) | |
tree | 594b9a557ea0436d00c71f57b8cabac907f5a574 /vmwgfx_fence.c | |
parent | 75220cb9cc1855117ccc091b4bd6af7ce042ea76 (diff) |
vmwgfx: Porting over new drm and ttm files
This is the one large DRM and vmwgfx port from kernel 4.6+ to
vmwgfx stand alone. The code is not quite v4.7, but some of
the structures have been ported over.
Signed-off-by: Sinclair Yeh <syeh@vmware.com>
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Diffstat (limited to 'vmwgfx_fence.c')
-rw-r--r-- | vmwgfx_fence.c | 427 |
1 files changed, 199 insertions, 228 deletions
diff --git a/vmwgfx_fence.c b/vmwgfx_fence.c index a4915ac..f41170b 100644 --- a/vmwgfx_fence.c +++ b/vmwgfx_fence.c @@ -46,6 +46,7 @@ struct vmw_fence_manager { bool goal_irq_on; /* Protected by @goal_irq_mutex */ bool seqno_valid; /* Protected by @lock, and may not be set to true without the @goal_irq_mutex held. */ + unsigned ctx; }; struct vmw_user_fence { @@ -70,7 +71,6 @@ struct vmw_user_fence { */ struct vmw_event_fence_action { struct vmw_fence_action action; - struct list_head fpriv_head; struct drm_pending_event *event; struct vmw_fence_obj *fence; @@ -80,6 +80,12 @@ struct vmw_event_fence_action { uint32_t *tv_usec; }; +static struct vmw_fence_manager * +fman_from_fence(struct vmw_fence_obj *fence) +{ + return container_of(fence->base.lock, struct vmw_fence_manager, lock); +} + /** * Note on fencing subsystem usage of irqs: * Typically the vmw_fences_update function is called @@ -102,25 +108,131 @@ struct vmw_event_fence_action { * objects with actions attached to them. */ -static void __releases(fman->lock) __acquires(fman->lock) vmw_fence_obj_destroy_locked(struct kref *kref) +static void vmw_fence_obj_destroy(struct fence *f) { struct vmw_fence_obj *fence = - container_of(kref, struct vmw_fence_obj, kref); + container_of(f, struct vmw_fence_obj, base); - struct vmw_fence_manager *fman = fence->fman; - unsigned int num_fences; + struct vmw_fence_manager *fman = fman_from_fence(fence); + unsigned long irq_flags; + spin_lock_irqsave(&fman->lock, irq_flags); list_del_init(&fence->head); - num_fences = --fman->num_fence_objects; - spin_unlock_irq(&fman->lock); - if (fence->destroy) - fence->destroy(fence); - else - kfree(fence); + --fman->num_fence_objects; + spin_unlock_irqrestore(&fman->lock, irq_flags); + fence->destroy(fence); +} - spin_lock_irq(&fman->lock); +static const char *vmw_fence_get_driver_name(struct fence *f) +{ + return "vmwgfx"; +} + +static const char *vmw_fence_get_timeline_name(struct fence *f) +{ + return "svga"; +} + +static bool vmw_fence_enable_signaling(struct fence *f) +{ + struct vmw_fence_obj *fence = + container_of(f, struct vmw_fence_obj, base); + + struct vmw_fence_manager *fman = fman_from_fence(fence); + struct vmw_private *dev_priv = fman->dev_priv; + + u32 *fifo_mem = dev_priv->mmio_virt; + u32 seqno = vmw_mmio_read(fifo_mem + SVGA_FIFO_FENCE); + if (seqno - fence->base.seqno < VMW_FENCE_WRAP) + return false; + + vmw_fifo_ping_host(dev_priv, SVGA_SYNC_GENERIC); + + return true; } +struct vmwgfx_wait_cb { + struct fence_cb base; + struct task_struct *task; +}; + +static void +vmwgfx_wait_cb(struct fence *fence, struct fence_cb *cb) +{ + struct vmwgfx_wait_cb *wait = + container_of(cb, struct vmwgfx_wait_cb, base); + + wake_up_process(wait->task); +} + +static void __vmw_fences_update(struct vmw_fence_manager *fman); + +static long vmw_fence_wait(struct fence *f, bool intr, signed long timeout) +{ + struct vmw_fence_obj *fence = + container_of(f, struct vmw_fence_obj, base); + + struct vmw_fence_manager *fman = fman_from_fence(fence); + struct vmw_private *dev_priv = fman->dev_priv; + struct vmwgfx_wait_cb cb; + long ret = timeout; + unsigned long irq_flags; + + if (likely(vmw_fence_obj_signaled(fence))) + return timeout; + + vmw_fifo_ping_host(dev_priv, SVGA_SYNC_GENERIC); + vmw_seqno_waiter_add(dev_priv); + + spin_lock_irqsave(f->lock, irq_flags); + + if (intr && signal_pending(current)) { + ret = -ERESTARTSYS; + goto out; + } + + cb.base.func = vmwgfx_wait_cb; + cb.task = current; + list_add(&cb.base.node, &f->cb_list); + + while (ret > 0) { + __vmw_fences_update(fman); + if (test_bit(FENCE_FLAG_SIGNALED_BIT, &f->flags)) + break; + + if (intr) + __set_current_state(TASK_INTERRUPTIBLE); + else + __set_current_state(TASK_UNINTERRUPTIBLE); + spin_unlock_irqrestore(f->lock, irq_flags); + + ret = schedule_timeout(ret); + + spin_lock_irqsave(f->lock, irq_flags); + if (ret > 0 && intr && signal_pending(current)) + ret = -ERESTARTSYS; + } + + if (!list_empty(&cb.base.node)) + list_del(&cb.base.node); + __set_current_state(TASK_RUNNING); + +out: + spin_unlock_irqrestore(f->lock, irq_flags); + + vmw_seqno_waiter_remove(dev_priv); + + return ret; +} + +static struct fence_ops vmw_fence_ops = { + .get_driver_name = vmw_fence_get_driver_name, + .get_timeline_name = vmw_fence_get_timeline_name, + .enable_signaling = vmw_fence_enable_signaling, + .wait = vmw_fence_wait, + .release = vmw_fence_obj_destroy, +}; + /** * Execute signal actions on fences recently signaled. @@ -186,6 +298,7 @@ struct vmw_fence_manager *vmw_fence_manager_init(struct vmw_private *dev_priv) fman->event_fence_action_size = ttm_round_pot(sizeof(struct vmw_event_fence_action)); mutex_init(&fman->goal_irq_mutex); + fman->ctx = fence_context_alloc(1); return fman; } @@ -207,23 +320,16 @@ void vmw_fence_manager_takedown(struct vmw_fence_manager *fman) } static int vmw_fence_obj_init(struct vmw_fence_manager *fman, - struct vmw_fence_obj *fence, - u32 seqno, - uint32_t mask, + struct vmw_fence_obj *fence, u32 seqno, void (*destroy) (struct vmw_fence_obj *fence)) { unsigned long irq_flags; - unsigned int num_fences; int ret = 0; - fence->seqno = seqno; + fence_init(&fence->base, &vmw_fence_ops, &fman->lock, + fman->ctx, seqno); INIT_LIST_HEAD(&fence->seq_passed_actions); - fence->fman = fman; - fence->signaled = 0; - fence->signal_mask = mask; - kref_init(&fence->kref); fence->destroy = destroy; - init_waitqueue_head(&fence->queue); spin_lock_irqsave(&fman->lock, irq_flags); if (unlikely(fman->fifo_down)) { @@ -231,7 +337,7 @@ static int vmw_fence_obj_init(struct vmw_fence_manager *fman, goto out_unlock; } list_add_tail(&fence->head, &fman->fence_list); - num_fences = ++fman->num_fence_objects; + ++fman->num_fence_objects; out_unlock: spin_unlock_irqrestore(&fman->lock, irq_flags); @@ -239,40 +345,8 @@ out_unlock: } -struct vmw_fence_obj *vmw_fence_obj_reference(struct vmw_fence_obj *fence) -{ - if (unlikely(fence == NULL)) - return NULL; - - kref_get(&fence->kref); - return fence; -} - -/** - * vmw_fence_obj_unreference - * - * Note that this function may not be entered with disabled irqs since - * it may re-enable them in the destroy function. - * - */ -void vmw_fence_obj_unreference(struct vmw_fence_obj **fence_p) -{ - struct vmw_fence_obj *fence = *fence_p; - struct vmw_fence_manager *fman; - - if (unlikely(fence == NULL)) - return; - - fman = fence->fman; - *fence_p = NULL; - spin_lock_irq(&fman->lock); - BUG_ON(atomic_read(&fence->kref.refcount) == 0); - kref_put(&fence->kref, vmw_fence_obj_destroy_locked); - spin_unlock_irq(&fman->lock); -} - static void vmw_fences_perform_actions(struct vmw_fence_manager *fman, - struct list_head *list) + struct list_head *list) { struct vmw_fence_action *action, *next_action; @@ -326,7 +400,7 @@ static bool vmw_fence_goal_new_locked(struct vmw_fence_manager *fman, list_for_each_entry(fence, &fman->fence_list, head) { if (!list_empty(&fence->seq_passed_actions)) { fman->seqno_valid = true; - vmw_mmio_write(fence->seqno, + vmw_mmio_write(fence->base.seqno, fifo_mem + SVGA_FIFO_FENCE_GOAL); break; } @@ -353,27 +427,27 @@ static bool vmw_fence_goal_new_locked(struct vmw_fence_manager *fman, */ static bool vmw_fence_goal_check_locked(struct vmw_fence_obj *fence) { + struct vmw_fence_manager *fman = fman_from_fence(fence); u32 goal_seqno; u32 *fifo_mem; - if (fence->signaled & DRM_VMW_FENCE_FLAG_EXEC) + if (fence_is_signaled_locked(&fence->base)) return false; - fifo_mem = fence->fman->dev_priv->mmio_virt; + fifo_mem = fman->dev_priv->mmio_virt; goal_seqno = vmw_mmio_read(fifo_mem + SVGA_FIFO_FENCE_GOAL); - if (likely(fence->fman->seqno_valid && - goal_seqno - fence->seqno < VMW_FENCE_WRAP)) + if (likely(fman->seqno_valid && + goal_seqno - fence->base.seqno < VMW_FENCE_WRAP)) return false; - vmw_mmio_write(fence->seqno, fifo_mem + SVGA_FIFO_FENCE_GOAL); - fence->fman->seqno_valid = true; + vmw_mmio_write(fence->base.seqno, fifo_mem + SVGA_FIFO_FENCE_GOAL); + fman->seqno_valid = true; return true; } -void vmw_fences_update(struct vmw_fence_manager *fman) +static void __vmw_fences_update(struct vmw_fence_manager *fman) { - unsigned long flags; struct vmw_fence_obj *fence, *next_fence; struct list_head action_list; bool needs_rerun; @@ -382,32 +456,25 @@ void vmw_fences_update(struct vmw_fence_manager *fman) seqno = vmw_mmio_read(fifo_mem + SVGA_FIFO_FENCE); rerun: - spin_lock_irqsave(&fman->lock, flags); list_for_each_entry_safe(fence, next_fence, &fman->fence_list, head) { - if (seqno - fence->seqno < VMW_FENCE_WRAP) { + if (seqno - fence->base.seqno < VMW_FENCE_WRAP) { list_del_init(&fence->head); - fence->signaled |= DRM_VMW_FENCE_FLAG_EXEC; + fence_signal_locked(&fence->base); INIT_LIST_HEAD(&action_list); list_splice_init(&fence->seq_passed_actions, &action_list); vmw_fences_perform_actions(fman, &action_list); - wake_up_all(&fence->queue); } else break; } - needs_rerun = vmw_fence_goal_new_locked(fman, seqno); - - if (!list_empty(&fman->cleanup_list)) - (void) schedule_work(&fman->work); - spin_unlock_irqrestore(&fman->lock, flags); - /* * Rerun if the fence goal seqno was updated, and the * hardware might have raced with that update, so that * we missed a fence_goal irq. */ + needs_rerun = vmw_fence_goal_new_locked(fman, seqno); if (unlikely(needs_rerun)) { new_seqno = vmw_mmio_read(fifo_mem + SVGA_FIFO_FENCE); if (new_seqno != seqno) { @@ -415,82 +482,59 @@ rerun: goto rerun; } } + + if (!list_empty(&fman->cleanup_list)) + (void) schedule_work(&fman->work); } -bool vmw_fence_obj_signaled(struct vmw_fence_obj *fence, - uint32_t flags) +void vmw_fences_update(struct vmw_fence_manager *fman) { - struct vmw_fence_manager *fman = fence->fman; unsigned long irq_flags; - uint32_t signaled; spin_lock_irqsave(&fman->lock, irq_flags); - signaled = fence->signaled; + __vmw_fences_update(fman); spin_unlock_irqrestore(&fman->lock, irq_flags); +} - flags &= fence->signal_mask; - if ((signaled & flags) == flags) - return 1; +bool vmw_fence_obj_signaled(struct vmw_fence_obj *fence) +{ + struct vmw_fence_manager *fman = fman_from_fence(fence); - if ((signaled & DRM_VMW_FENCE_FLAG_EXEC) == 0) - vmw_fences_update(fman); + if (test_bit(FENCE_FLAG_SIGNALED_BIT, &fence->base.flags)) + return 1; - spin_lock_irqsave(&fman->lock, irq_flags); - signaled = fence->signaled; - spin_unlock_irqrestore(&fman->lock, irq_flags); + vmw_fences_update(fman); - return ((signaled & flags) == flags); + return fence_is_signaled(&fence->base); } -int vmw_fence_obj_wait(struct vmw_fence_obj *fence, - uint32_t flags, bool lazy, +int vmw_fence_obj_wait(struct vmw_fence_obj *fence, bool lazy, bool interruptible, unsigned long timeout) { - struct vmw_private *dev_priv = fence->fman->dev_priv; - long ret; + long ret = fence_wait_timeout(&fence->base, interruptible, timeout); - if (likely(vmw_fence_obj_signaled(fence, flags))) + if (likely(ret > 0)) return 0; - - vmw_fifo_ping_host(dev_priv, SVGA_SYNC_GENERIC); - vmw_seqno_waiter_add(dev_priv); - - if (interruptible) - ret = wait_event_interruptible_timeout - (fence->queue, - vmw_fence_obj_signaled(fence, flags), - timeout); + else if (ret == 0) + return -EBUSY; else - ret = wait_event_timeout - (fence->queue, - vmw_fence_obj_signaled(fence, flags), - timeout); - - vmw_seqno_waiter_remove(dev_priv); - - if (unlikely(ret == 0)) - ret = -EBUSY; - else if (likely(ret > 0)) - ret = 0; - - return ret; + return ret; } void vmw_fence_obj_flush(struct vmw_fence_obj *fence) { - struct vmw_private *dev_priv = fence->fman->dev_priv; + struct vmw_private *dev_priv = fman_from_fence(fence)->dev_priv; vmw_fifo_ping_host(dev_priv, SVGA_SYNC_GENERIC); } static void vmw_fence_destroy(struct vmw_fence_obj *fence) { - kfree(fence); + fence_free(&fence->base); } int vmw_fence_create(struct vmw_fence_manager *fman, uint32_t seqno, - uint32_t mask, struct vmw_fence_obj **p_fence) { struct vmw_fence_obj *fence; @@ -500,7 +544,7 @@ int vmw_fence_create(struct vmw_fence_manager *fman, if (unlikely(!fence)) return -ENOMEM; - ret = vmw_fence_obj_init(fman, fence, seqno, mask, + ret = vmw_fence_obj_init(fman, fence, seqno, vmw_fence_destroy); if (unlikely(ret != 0)) goto out_err_init; @@ -518,7 +562,7 @@ static void vmw_user_fence_destroy(struct vmw_fence_obj *fence) { struct vmw_user_fence *ufence = container_of(fence, struct vmw_user_fence, fence); - struct vmw_fence_manager *fman = fence->fman; + struct vmw_fence_manager *fman = fman_from_fence(fence); ttm_base_object_kfree(ufence, base); /* @@ -542,7 +586,6 @@ static void vmw_user_fence_base_release(struct ttm_base_object **p_base) int vmw_user_fence_create(struct drm_file *file_priv, struct vmw_fence_manager *fman, uint32_t seqno, - uint32_t mask, struct vmw_fence_obj **p_fence, uint32_t *p_handle) { @@ -569,7 +612,7 @@ int vmw_user_fence_create(struct drm_file *file_priv, } ret = vmw_fence_obj_init(fman, &ufence->fence, seqno, - mask, vmw_user_fence_destroy); + vmw_user_fence_destroy); if (unlikely(ret != 0)) { kfree(ufence); goto out_no_object; @@ -612,7 +655,6 @@ out_no_object: void vmw_fence_fifo_down(struct vmw_fence_manager *fman) { - unsigned long irq_flags; struct list_head action_list; int ret; @@ -621,35 +663,32 @@ void vmw_fence_fifo_down(struct vmw_fence_manager *fman) * restart when we've released the fman->lock. */ - spin_lock_irqsave(&fman->lock, irq_flags); + spin_lock_irq(&fman->lock); fman->fifo_down = true; while (!list_empty(&fman->fence_list)) { struct vmw_fence_obj *fence = list_entry(fman->fence_list.prev, struct vmw_fence_obj, head); - kref_get(&fence->kref); + fence_get(&fence->base); spin_unlock_irq(&fman->lock); - ret = vmw_fence_obj_wait(fence, fence->signal_mask, - false, false, + ret = vmw_fence_obj_wait(fence, false, false, VMW_FENCE_WAIT_TIMEOUT); if (unlikely(ret != 0)) { list_del_init(&fence->head); - fence->signaled |= DRM_VMW_FENCE_FLAG_EXEC; + fence_signal(&fence->base); INIT_LIST_HEAD(&action_list); list_splice_init(&fence->seq_passed_actions, &action_list); vmw_fences_perform_actions(fman, &action_list); - wake_up_all(&fence->queue); } - spin_lock_irq(&fman->lock); - BUG_ON(!list_empty(&fence->head)); - kref_put(&fence->kref, vmw_fence_obj_destroy_locked); + fence_put(&fence->base); + spin_lock_irq(&fman->lock); } - spin_unlock_irqrestore(&fman->lock, irq_flags); + spin_unlock_irq(&fman->lock); } void vmw_fence_fifo_up(struct vmw_fence_manager *fman) @@ -699,14 +738,14 @@ int vmw_fence_obj_wait_ioctl(struct drm_device *dev, void *data, timeout = jiffies; if (time_after_eq(timeout, (unsigned long)arg->kernel_cookie)) { - ret = ((vmw_fence_obj_signaled(fence, arg->flags)) ? + ret = ((vmw_fence_obj_signaled(fence)) ? 0 : -EBUSY); goto out; } timeout = (unsigned long)arg->kernel_cookie - timeout; - ret = vmw_fence_obj_wait(fence, arg->flags, arg->lazy, true, timeout); + ret = vmw_fence_obj_wait(fence, arg->lazy, true, timeout); out: ttm_base_object_unref(&base); @@ -741,12 +780,12 @@ int vmw_fence_obj_signaled_ioctl(struct drm_device *dev, void *data, } fence = &(container_of(base, struct vmw_user_fence, base)->fence); - fman = fence->fman; + fman = fman_from_fence(fence); - arg->signaled = vmw_fence_obj_signaled(fence, arg->flags); - spin_lock_irq(&fman->lock); + arg->signaled = vmw_fence_obj_signaled(fence); - arg->signaled_flags = fence->signaled; + arg->signaled_flags = arg->flags; + spin_lock_irq(&fman->lock); arg->passed_seqno = dev_priv->last_read_seqno; spin_unlock_irq(&fman->lock); @@ -768,44 +807,6 @@ int vmw_fence_obj_unref_ioctl(struct drm_device *dev, void *data, } /** - * vmw_event_fence_fpriv_gone - Remove references to struct drm_file objects - * - * @fman: Pointer to a struct vmw_fence_manager - * @event_list: Pointer to linked list of struct vmw_event_fence_action objects - * with pointers to a struct drm_file object about to be closed. - * - * This function removes all pending fence events with references to a - * specific struct drm_file object about to be closed. The caller is required - * to pass a list of all struct vmw_event_fence_action objects with such - * events attached. This function is typically called before the - * struct drm_file object's event management is taken down. - */ -void vmw_event_fence_fpriv_gone(struct vmw_fence_manager *fman, - struct list_head *event_list) -{ - struct vmw_event_fence_action *eaction; - struct drm_pending_event *event; - unsigned long irq_flags; - - while (1) { - spin_lock_irqsave(&fman->lock, irq_flags); - if (list_empty(event_list)) - goto out_unlock; - eaction = list_first_entry(event_list, - struct vmw_event_fence_action, - fpriv_head); - list_del_init(&eaction->fpriv_head); - event = eaction->event; - eaction->event = NULL; - spin_unlock_irqrestore(&fman->lock, irq_flags); - event->destroy(event); - } -out_unlock: - spin_unlock_irqrestore(&fman->lock, irq_flags); -} - - -/** * vmw_event_fence_action_seq_passed * * @action: The struct vmw_fence_action embedded in a struct @@ -839,10 +840,8 @@ static void vmw_event_fence_action_seq_passed(struct vmw_fence_action *action) *eaction->tv_usec = tv.tv_usec; } - list_del_init(&eaction->fpriv_head); - list_add_tail(&eaction->event->link, &file_priv->event_list); + drm_send_event_locked(dev, eaction->event); eaction->event = NULL; - wake_up_all(&file_priv->event_wait); spin_unlock_irqrestore(&dev->event_lock, irq_flags); } @@ -859,12 +858,6 @@ static void vmw_event_fence_action_cleanup(struct vmw_fence_action *action) { struct vmw_event_fence_action *eaction = container_of(action, struct vmw_event_fence_action, action); - struct vmw_fence_manager *fman = eaction->fence->fman; - unsigned long irq_flags; - - spin_lock_irqsave(&fman->lock, irq_flags); - list_del(&eaction->fpriv_head); - spin_unlock_irqrestore(&fman->lock, irq_flags); vmw_fence_obj_unreference(&eaction->fence); kfree(eaction); @@ -881,9 +874,9 @@ static void vmw_event_fence_action_cleanup(struct vmw_fence_action *action) * returns. */ static void vmw_fence_obj_add_action(struct vmw_fence_obj *fence, - struct vmw_fence_action *action) + struct vmw_fence_action *action) { - struct vmw_fence_manager *fman = fence->fman; + struct vmw_fence_manager *fman = fman_from_fence(fence); unsigned long irq_flags; bool run_update = false; @@ -891,7 +884,7 @@ static void vmw_fence_obj_add_action(struct vmw_fence_obj *fence, spin_lock_irqsave(&fman->lock, irq_flags); fman->pending_actions[action->type]++; - if (fence->signaled & DRM_VMW_FENCE_FLAG_EXEC) { + if (fence_is_signaled_locked(&fence->base)) { struct list_head action_list; INIT_LIST_HEAD(&action_list); @@ -943,9 +936,7 @@ int vmw_event_fence_action_queue(struct drm_file *file_priv, bool interruptible) { struct vmw_event_fence_action *eaction; - struct vmw_fence_manager *fman = fence->fman; - struct vmw_fpriv *vmw_fp = vmw_fpriv(file_priv); - unsigned long irq_flags; + struct vmw_fence_manager *fman = fman_from_fence(fence); eaction = kzalloc(sizeof(*eaction), GFP_KERNEL); if (unlikely(!eaction)) @@ -962,61 +953,45 @@ int vmw_event_fence_action_queue(struct drm_file *file_priv, eaction->tv_sec = tv_sec; eaction->tv_usec = tv_usec; - spin_lock_irqsave(&fman->lock, irq_flags); - list_add_tail(&eaction->fpriv_head, &vmw_fp->fence_events); - spin_unlock_irqrestore(&fman->lock, irq_flags); - vmw_fence_obj_add_action(fence, &eaction->action); return 0; } -struct vmw_event_fence_pending -{ +struct vmw_event_fence_pending { struct drm_pending_event base; struct drm_vmw_event_fence event; }; static int vmw_event_fence_action_create(struct drm_file *file_priv, - struct vmw_fence_obj *fence, - uint32_t flags, - uint64_t user_data, - bool interruptible) + struct vmw_fence_obj *fence, + uint32_t flags, + uint64_t user_data, + bool interruptible) { struct vmw_event_fence_pending *event; - struct drm_device *dev = fence->fman->dev_priv->dev; - unsigned long irq_flags; + struct vmw_fence_manager *fman = fman_from_fence(fence); + struct drm_device *dev = fman->dev_priv->dev; int ret; - spin_lock_irqsave(&dev->event_lock, irq_flags); - - ret = (file_priv->event_space < sizeof(event->event)) ? -EBUSY : 0; - if (likely(ret == 0)) - file_priv->event_space -= sizeof(event->event); - - spin_unlock_irqrestore(&dev->event_lock, irq_flags); - - if (unlikely(ret != 0)) { - DRM_ERROR("Failed to allocate event space for this file.\n"); - goto out_no_space; - } - - event = kzalloc(sizeof(*event), GFP_KERNEL); if (unlikely(!event)) { DRM_ERROR("Failed to allocate an event.\n"); ret = -ENOMEM; - goto out_no_event; + goto out_no_space; } event->event.base.type = DRM_VMW_EVENT_FENCE_SIGNALED; event->event.base.length = sizeof(*event); event->event.user_data = user_data; - event->base.event = &event->event.base; - event->base.file_priv = file_priv; - event->base.destroy = (void (*) (struct drm_pending_event *)) kfree; + ret = drm_event_reserve_init(dev, file_priv, &event->base, &event->event.base); + if (unlikely(ret != 0)) { + DRM_ERROR("Failed to allocate event space for this file.\n"); + kfree(event); + goto out_no_space; + } if (flags & DRM_VMW_FE_FLAG_REQ_TIME) ret = vmw_event_fence_action_queue(file_priv, fence, @@ -1036,11 +1011,7 @@ static int vmw_event_fence_action_create(struct drm_file *file_priv, return 0; out_no_queue: - event->base.destroy(&event->base); -out_no_event: - spin_lock_irqsave(&dev->event_lock, irq_flags); - file_priv->event_space += sizeof(*event); - spin_unlock_irqrestore(&dev->event_lock, irq_flags); + drm_event_cancel_free(dev, &event->base); out_no_space: return ret; } |