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Diffstat (limited to 'drivers/gpu/drm/vmwgfx/vmwgfx_fence.h')
-rw-r--r--drivers/gpu/drm/vmwgfx/vmwgfx_fence.h113
1 files changed, 113 insertions, 0 deletions
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_fence.h b/drivers/gpu/drm/vmwgfx/vmwgfx_fence.h
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@@ -0,0 +1,113 @@
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
32struct vmw_private;
33
34struct vmw_fence_manager;
35
36/**
37 *
38 *
39 */
40enum vmw_action_type {
41 VMW_ACTION_EVENT = 0,
42 VMW_ACTION_MAX
43};
44
45struct 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
52struct 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
65extern struct vmw_fence_manager *
66vmw_fence_manager_init(struct vmw_private *dev_priv);
67
68extern void vmw_fence_manager_takedown(struct vmw_fence_manager *fman);
69
70extern void vmw_fence_obj_unreference(struct vmw_fence_obj **fence_p);
71
72extern struct vmw_fence_obj *
73vmw_fence_obj_reference(struct vmw_fence_obj *fence);
74
75extern void vmw_fences_update(struct vmw_fence_manager *fman);
76
77extern bool vmw_fence_obj_signaled(struct vmw_fence_obj *fence,
78 uint32_t flags);
79
80extern int vmw_fence_obj_wait(struct vmw_fence_obj *fence, uint32_t flags,
81 bool lazy,
82 bool interruptible, unsigned long timeout);
83
84extern void vmw_fence_obj_flush(struct vmw_fence_obj *fence);
85
86extern 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
91extern 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
98extern void vmw_fence_fifo_up(struct vmw_fence_manager *fman);
99
100extern void vmw_fence_fifo_down(struct vmw_fence_manager *fman);
101
102extern int vmw_fence_obj_wait_ioctl(struct drm_device *dev, void *data,
103 struct drm_file *file_priv);
104
105extern int vmw_fence_obj_signaled_ioctl(struct drm_device *dev, void *data,
106 struct drm_file *file_priv);
107
108extern int vmw_fence_obj_unref_ioctl(struct drm_device *dev, void *data,
109 struct drm_file *file_priv);
110extern int vmw_fence_event_ioctl(struct drm_device *dev, void *data,
111 struct drm_file *file_priv);
112
113#endif /* _VMWGFX_FENCE_H_ */
generated by cgit v1.2.2 (git 2.25.0) at 2025-03-12 19:42:32 -0400