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1/* SPDX-License-Identifier: GPL-2.0 OR MIT */
2/**************************************************************************
3 *
4 * Copyright 2011-2012 VMware, Inc., Palo Alto, CA., USA
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/dma-fence.h>
31#include <linux/dma-fence-array.h>
32
33#define VMW_FENCE_WAIT_TIMEOUT (5*HZ)
34
35struct drm_device;
36struct drm_file;
37struct drm_pending_event;
38
39struct vmw_private;
40struct vmw_fence_manager;
41
42/**
43 *
44 *
45 */
46enum vmw_action_type {
47 VMW_ACTION_EVENT = 0,
48 VMW_ACTION_MAX
49};
50
51struct vmw_fence_action {
52 struct list_head head;
53 enum vmw_action_type type;
54 void (*seq_passed) (struct vmw_fence_action *action);
55 void (*cleanup) (struct vmw_fence_action *action);
56};
57
58struct vmw_fence_obj {
59 struct dma_fence base;
60
61 struct list_head head;
62 struct list_head seq_passed_actions;
63 void (*destroy)(struct vmw_fence_obj *fence);
64};
65
66extern struct vmw_fence_manager *
67vmw_fence_manager_init(struct vmw_private *dev_priv);
68
69extern void vmw_fence_manager_takedown(struct vmw_fence_manager *fman);
70
71static inline void
72vmw_fence_obj_unreference(struct vmw_fence_obj **fence_p)
73{
74 struct vmw_fence_obj *fence = *fence_p;
75
76 *fence_p = NULL;
77 if (fence)
78 dma_fence_put(&fence->base);
79}
80
81static inline struct vmw_fence_obj *
82vmw_fence_obj_reference(struct vmw_fence_obj *fence)
83{
84 if (fence)
85 dma_fence_get(&fence->base);
86 return fence;
87}
88
89extern void vmw_fences_update(struct vmw_fence_manager *fman);
90
91extern bool vmw_fence_obj_signaled(struct vmw_fence_obj *fence);
92
93extern int vmw_fence_obj_wait(struct vmw_fence_obj *fence,
94 bool lazy,
95 bool interruptible, unsigned long timeout);
96
97extern int vmw_fence_create(struct vmw_fence_manager *fman,
98 uint32_t seqno,
99 struct vmw_fence_obj **p_fence);
100
101extern int vmw_user_fence_create(struct drm_file *file_priv,
102 struct vmw_fence_manager *fman,
103 uint32_t sequence,
104 struct vmw_fence_obj **p_fence,
105 uint32_t *p_handle);
106
107extern void vmw_fence_fifo_up(struct vmw_fence_manager *fman);
108
109extern void vmw_fence_fifo_down(struct vmw_fence_manager *fman);
110
111extern int vmw_fence_obj_wait_ioctl(struct drm_device *dev, void *data,
112 struct drm_file *file_priv);
113
114extern int vmw_fence_obj_signaled_ioctl(struct drm_device *dev, void *data,
115 struct drm_file *file_priv);
116
117extern int vmw_fence_obj_unref_ioctl(struct drm_device *dev, void *data,
118 struct drm_file *file_priv);
119extern int vmw_fence_event_ioctl(struct drm_device *dev, void *data,
120 struct drm_file *file_priv);
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_ */
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/dma-fence.h>
31#include <linux/dma-fence-array.h>
32
33#define VMW_FENCE_WAIT_TIMEOUT (5*HZ)
34
35struct vmw_private;
36
37struct vmw_fence_manager;
38
39/**
40 *
41 *
42 */
43enum vmw_action_type {
44 VMW_ACTION_EVENT = 0,
45 VMW_ACTION_MAX
46};
47
48struct vmw_fence_action {
49 struct list_head head;
50 enum vmw_action_type type;
51 void (*seq_passed) (struct vmw_fence_action *action);
52 void (*cleanup) (struct vmw_fence_action *action);
53};
54
55struct vmw_fence_obj {
56 struct dma_fence base;
57
58 struct list_head head;
59 struct list_head seq_passed_actions;
60 void (*destroy)(struct vmw_fence_obj *fence);
61};
62
63extern struct vmw_fence_manager *
64vmw_fence_manager_init(struct vmw_private *dev_priv);
65
66extern void vmw_fence_manager_takedown(struct vmw_fence_manager *fman);
67
68static inline void
69vmw_fence_obj_unreference(struct vmw_fence_obj **fence_p)
70{
71 struct vmw_fence_obj *fence = *fence_p;
72
73 *fence_p = NULL;
74 if (fence)
75 dma_fence_put(&fence->base);
76}
77
78static inline struct vmw_fence_obj *
79vmw_fence_obj_reference(struct vmw_fence_obj *fence)
80{
81 if (fence)
82 dma_fence_get(&fence->base);
83 return fence;
84}
85
86extern void vmw_fences_update(struct vmw_fence_manager *fman);
87
88extern bool vmw_fence_obj_signaled(struct vmw_fence_obj *fence);
89
90extern int vmw_fence_obj_wait(struct vmw_fence_obj *fence,
91 bool lazy,
92 bool interruptible, unsigned long timeout);
93
94extern void vmw_fence_obj_flush(struct vmw_fence_obj *fence);
95
96extern int vmw_fence_create(struct vmw_fence_manager *fman,
97 uint32_t seqno,
98 struct vmw_fence_obj **p_fence);
99
100extern int vmw_user_fence_create(struct drm_file *file_priv,
101 struct vmw_fence_manager *fman,
102 uint32_t sequence,
103 struct vmw_fence_obj **p_fence,
104 uint32_t *p_handle);
105
106extern int vmw_wait_dma_fence(struct vmw_fence_manager *fman,
107 struct dma_fence *fence);
108
109extern void vmw_fence_fifo_up(struct vmw_fence_manager *fman);
110
111extern void vmw_fence_fifo_down(struct vmw_fence_manager *fman);
112
113extern int vmw_fence_obj_wait_ioctl(struct drm_device *dev, void *data,
114 struct drm_file *file_priv);
115
116extern int vmw_fence_obj_signaled_ioctl(struct drm_device *dev, void *data,
117 struct drm_file *file_priv);
118
119extern int vmw_fence_obj_unref_ioctl(struct drm_device *dev, void *data,
120 struct drm_file *file_priv);
121extern int vmw_fence_event_ioctl(struct drm_device *dev, void *data,
122 struct drm_file *file_priv);
123extern int vmw_event_fence_action_queue(struct drm_file *filee_priv,
124 struct vmw_fence_obj *fence,
125 struct drm_pending_event *event,
126 uint32_t *tv_sec,
127 uint32_t *tv_usec,
128 bool interruptible);
129#endif /* _VMWGFX_FENCE_H_ */