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vmwgfx_fence.h
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27 
28 #ifndef _VMWGFX_FENCE_H_
29 
30 #define VMW_FENCE_WAIT_TIMEOUT (5*HZ)
31 
32 struct vmw_private;
33 
34 struct vmw_fence_manager;
35 
40 enum vmw_action_type {
41  VMW_ACTION_EVENT = 0,
42  VMW_ACTION_MAX
43 };
44 
45 struct vmw_fence_action {
46  struct list_head head;
47  enum vmw_action_type type;
48  void (*seq_passed) (struct vmw_fence_action *action);
49  void (*cleanup) (struct vmw_fence_action *action);
50 };
51 
52 struct vmw_fence_obj {
53  struct kref kref;
54  u32 seqno;
55 
56  struct vmw_fence_manager *fman;
57  struct list_head head;
58  uint32_t signaled;
59  uint32_t signal_mask;
60  struct list_head seq_passed_actions;
61  void (*destroy)(struct vmw_fence_obj *fence);
62  wait_queue_head_t queue;
63 };
64 
65 extern struct vmw_fence_manager *
66 vmw_fence_manager_init(struct vmw_private *dev_priv);
67 
68 extern void vmw_fence_manager_takedown(struct vmw_fence_manager *fman);
69 
70 extern void vmw_fence_obj_unreference(struct vmw_fence_obj **fence_p);
71 
72 extern struct vmw_fence_obj *
73 vmw_fence_obj_reference(struct vmw_fence_obj *fence);
74 
75 extern void vmw_fences_update(struct vmw_fence_manager *fman);
76 
77 extern bool vmw_fence_obj_signaled(struct vmw_fence_obj *fence,
78  uint32_t flags);
79 
80 extern int vmw_fence_obj_wait(struct vmw_fence_obj *fence, uint32_t flags,
81  bool lazy,
82  bool interruptible, unsigned long timeout);
83 
84 extern void vmw_fence_obj_flush(struct vmw_fence_obj *fence);
85 
86 extern int vmw_fence_create(struct vmw_fence_manager *fman,
87  uint32_t seqno,
88  uint32_t mask,
89  struct vmw_fence_obj **p_fence);
90 
91 extern int vmw_user_fence_create(struct drm_file *file_priv,
92  struct vmw_fence_manager *fman,
93  uint32_t sequence,
94  uint32_t mask,
95  struct vmw_fence_obj **p_fence,
96  uint32_t *p_handle);
97 
98 extern void vmw_fence_fifo_up(struct vmw_fence_manager *fman);
99 
100 extern void vmw_fence_fifo_down(struct vmw_fence_manager *fman);
101 
102 extern int vmw_fence_obj_wait_ioctl(struct drm_device *dev, void *data,
103  struct drm_file *file_priv);
104 
105 extern int vmw_fence_obj_signaled_ioctl(struct drm_device *dev, void *data,
106  struct drm_file *file_priv);
107 
108 extern int vmw_fence_obj_unref_ioctl(struct drm_device *dev, void *data,
109  struct drm_file *file_priv);
110 extern int vmw_fence_event_ioctl(struct drm_device *dev, void *data,
111  struct drm_file *file_priv);
112 extern void vmw_event_fence_fpriv_gone(struct vmw_fence_manager *fman,
113  struct list_head *event_list);
114 extern int vmw_event_fence_action_queue(struct drm_file *filee_priv,
115  struct vmw_fence_obj *fence,
116  struct drm_pending_event *event,
117  uint32_t *tv_sec,
118  uint32_t *tv_usec,
119  bool interruptible);
120 #endif /* _VMWGFX_FENCE_H_ */
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