1 /*
2  * Copyright © 2008 Jérôme Glisse
3  * Copyright © 2011 Marek Olšák <maraeo@gmail.com>
4  * All Rights Reserved.
5  *
6  * Permission is hereby granted, free of charge, to any person obtaining
7  * a 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 SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
15  * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
16  * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
17  * NON-INFRINGEMENT. IN NO EVENT SHALL THE COPYRIGHT HOLDERS, AUTHORS
18  * AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
20  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
21  * USE OR OTHER DEALINGS IN THE SOFTWARE.
22  *
23  * The above copyright notice and this permission notice (including the
24  * next paragraph) shall be included in all copies or substantial portions
25  * of the Software.
26  */
27 
28 #ifndef RADEON_DRM_BO_H
29 #define RADEON_DRM_BO_H
30 
31 #include "radeon_drm_winsys.h"
32 #include "os/os_thread.h"
33 #include "pipebuffer/pb_slab.h"
34 
35 struct radeon_bo {
36    struct pb_buffer base;
37    union {
38       struct {
39          struct pb_cache_entry cache_entry;
40 
41          void *ptr;
42          mtx_t map_mutex;
43          unsigned map_count;
44          bool use_reusable_pool;
45       } real;
46       struct {
47          struct pb_slab_entry entry;
48          struct radeon_bo *real;
49 
50          unsigned num_fences;
51          unsigned max_fences;
52          struct radeon_bo **fences;
53       } slab;
54    } u;
55 
56    struct radeon_drm_winsys *rws;
57    void *user_ptr; /* from buffer_from_ptr */
58 
59    uint32_t handle; /* 0 for slab entries */
60    uint32_t flink_name;
61    uint64_t va;
62    uint32_t hash;
63    enum radeon_bo_domain initial_domain;
64 
65    /* how many command streams is this bo referenced in? */
66    int num_cs_references;
67 
68    /* how many command streams, which are being emitted in a separate
69     * thread, is this bo referenced in? */
70    int num_active_ioctls;
71 };
72 
73 struct radeon_slab {
74    struct pb_slab base;
75    struct radeon_bo *buffer;
76    struct radeon_bo *entries;
77 };
78 
79 void radeon_bo_destroy(void *winsys, struct pb_buffer *_buf);
80 bool radeon_bo_can_reclaim(void *winsys, struct pb_buffer *_buf);
81 void radeon_drm_bo_init_functions(struct radeon_drm_winsys *ws);
82 
83 bool radeon_bo_can_reclaim_slab(void *priv, struct pb_slab_entry *entry);
84 struct pb_slab *radeon_bo_slab_alloc(void *priv, unsigned heap,
85                                      unsigned entry_size,
86                                      unsigned group_index);
87 void radeon_bo_slab_free(void *priv, struct pb_slab *slab);
88 
89 static inline
radeon_ws_bo_reference(struct radeon_bo ** dst,struct radeon_bo * src)90 void radeon_ws_bo_reference(struct radeon_bo **dst, struct radeon_bo *src)
91 {
92    pb_reference((struct pb_buffer**)dst, (struct pb_buffer*)src);
93 }
94 
95 void *radeon_bo_do_map(struct radeon_bo *bo);
96 
97 #endif
98