1/*
2 * Copyright © 2019 Raspberry Pi
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
21 * IN THE SOFTWARE.
22 */
23
24#ifndef V3DV_BO_H
25#define V3DV_BO_H
26
27struct v3dv_device;
28
29struct v3dv_bo {
30   struct list_head list_link;
31
32   uint32_t handle;
33   uint64_t handle_bit;
34   uint32_t size;
35   uint32_t offset;
36
37   uint32_t map_size;
38   void *map;
39
40   const char *name;
41
42   /** Entry in the linked list of buffers freed, by age. */
43   struct list_head time_list;
44   /** Entry in the per-page-count linked list of buffers freed (by age). */
45   struct list_head size_list;
46   /** Approximate second when the bo was freed. */
47   time_t free_time;
48
49   /**
50    * Whether only our process has a reference to the BO (meaning that
51    * it's safe to reuse it in the BO cache).
52    */
53   bool private;
54
55   /**
56    * If this BO was allocated for a swapchain on the display device, the
57    * handle of the dumb BO on that device.
58    */
59   int32_t dumb_handle;
60};
61
62void v3dv_bo_init(struct v3dv_bo *bo, uint32_t handle, uint32_t size, uint32_t offset, const char *name, bool private);
63
64struct v3dv_bo *v3dv_bo_alloc(struct v3dv_device *device, uint32_t size, const char *name, bool private);
65
66bool v3dv_bo_free(struct v3dv_device *device, struct v3dv_bo *bo);
67
68bool v3dv_bo_wait(struct v3dv_device *device, struct v3dv_bo *bo, uint64_t timeout_ns);
69
70bool v3dv_bo_map_unsynchronized(struct v3dv_device *device, struct v3dv_bo *bo, uint32_t size);
71
72bool v3dv_bo_map(struct v3dv_device *device, struct v3dv_bo *bo, uint32_t size);
73
74void v3dv_bo_unmap(struct v3dv_device *device, struct v3dv_bo *bo);
75
76void v3dv_bo_cache_init(struct v3dv_device *device);
77void v3dv_bo_cache_destroy(struct v3dv_device *device);
78
79#endif /* V3DV_BO_H */
80