vmwgfx: Initialize clip rect loop correctly in surface dirty
[linux-2.6.git] / drivers / gpu / drm / vmwgfx / vmwgfx_fence.h
1 /**************************************************************************
2  *
3  * Copyright © 2011 VMware, Inc., Palo Alto, CA., USA
4  * All Rights Reserved.
5  *
6  * Permission is hereby granted, free of charge, to any person obtaining a
7  * copy of this software and associated documentation files (the
8  * "Software"), to deal in the Software without restriction, including
9  * without limitation the rights to use, copy, modify, merge, publish,
10  * distribute, sub license, and/or sell copies of the Software, and to
11  * permit persons to whom the Software is furnished to do so, subject to
12  * the following conditions:
13  *
14  * The above copyright notice and this permission notice (including the
15  * next paragraph) shall be included in all copies or substantial portions
16  * of the Software.
17  *
18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
19  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20  * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
21  * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
22  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
23  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
24  * USE OR OTHER DEALINGS IN THE SOFTWARE.
25  *
26  **************************************************************************/
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
36 /**
37  *
38  *
39  */
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
113 #endif /* _VMWGFX_FENCE_H_ */