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gerrit.nordix.org / codeaurora / cp-linux / 8d8f6542b666daf5e87de156590e635c2c4da0c0 / . / drivers / gpu / drm / vmwgfx / vmwgfx_fence.h
blob: 8be6c29f5eb55fd8ca96bc8bd2edc68927386362 [file] [log] [blame]
Kyle Swenson8d8f6542021-03-15 11:02:55 -0600[diff] [blame^]1/**************************************************************************
2 *
3 * Copyright © 2011-2012 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#include <linux/fence.h>
31
32#define VMW_FENCE_WAIT_TIMEOUT (5*HZ)
33
34struct vmw_private;
35
36struct vmw_fence_manager;
37
38/**
39 *
40 *
41 */
42enum vmw_action_type {
43 VMW_ACTION_EVENT = 0,
44 VMW_ACTION_MAX
45};
46
47struct vmw_fence_action {
48 struct list_head head;
49 enum vmw_action_type type;
50 void (*seq_passed) (struct vmw_fence_action *action);
51 void (*cleanup) (struct vmw_fence_action *action);
52};
53
54struct vmw_fence_obj {
55 struct fence base;
56
57 struct list_head head;
58 struct list_head seq_passed_actions;
59 void (*destroy)(struct vmw_fence_obj *fence);
60};
61
62extern struct vmw_fence_manager *
63vmw_fence_manager_init(struct vmw_private *dev_priv);
64
65extern void vmw_fence_manager_takedown(struct vmw_fence_manager *fman);
66
67static inline void
68vmw_fence_obj_unreference(struct vmw_fence_obj **fence_p)
69{
70 struct vmw_fence_obj *fence = *fence_p;
71
72 *fence_p = NULL;
73 if (fence)
74 fence_put(&fence->base);
75}
76
77static inline struct vmw_fence_obj *
78vmw_fence_obj_reference(struct vmw_fence_obj *fence)
79{
80 if (fence)
81 fence_get(&fence->base);
82 return fence;
83}
84
85extern void vmw_fences_update(struct vmw_fence_manager *fman);
86
87extern bool vmw_fence_obj_signaled(struct vmw_fence_obj *fence);
88
89extern int vmw_fence_obj_wait(struct vmw_fence_obj *fence,
90 bool lazy,
91 bool interruptible, unsigned long timeout);
92
93extern void vmw_fence_obj_flush(struct vmw_fence_obj *fence);
94
95extern int vmw_fence_create(struct vmw_fence_manager *fman,
96 uint32_t seqno,
97 struct vmw_fence_obj **p_fence);
98
99extern int vmw_user_fence_create(struct drm_file *file_priv,
100 struct vmw_fence_manager *fman,
101 uint32_t sequence,
102 struct vmw_fence_obj **p_fence,
103 uint32_t *p_handle);
104
105extern void vmw_fence_fifo_up(struct vmw_fence_manager *fman);
106
107extern void vmw_fence_fifo_down(struct vmw_fence_manager *fman);
108
109extern int vmw_fence_obj_wait_ioctl(struct drm_device *dev, void *data,
110 struct drm_file *file_priv);
111
112extern int vmw_fence_obj_signaled_ioctl(struct drm_device *dev, void *data,
113 struct drm_file *file_priv);
114
115extern int vmw_fence_obj_unref_ioctl(struct drm_device *dev, void *data,
116 struct drm_file *file_priv);
117extern int vmw_fence_event_ioctl(struct drm_device *dev, void *data,
118 struct drm_file *file_priv);
119extern void vmw_event_fence_fpriv_gone(struct vmw_fence_manager *fman,
120 struct list_head *event_list);
121extern int vmw_event_fence_action_queue(struct drm_file *filee_priv,
122 struct vmw_fence_obj *fence,
123 struct drm_pending_event *event,
124 uint32_t *tv_sec,
125 uint32_t *tv_usec,
126 bool interruptible);
127#endif /* _VMWGFX_FENCE_H_ */