2 * Copyright © 2014 Broadcom
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:
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
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
28 #include "util/u_hash_table.h"
29 #include "util/u_inlines.h"
30 #include "util/list.h"
31 #include "v3d_screen.h"
36 struct pipe_reference reference
;
37 struct v3d_screen
*screen
;
43 /* Address of the BO in our page tables. */
46 /** Entry in the linked list of buffers freed, by age. */
47 struct list_head time_list
;
48 /** Entry in the per-page-count linked list of buffers freed (by age). */
49 struct list_head size_list
;
50 /** Approximate second when the bo was freed. */
53 * Whether only our process has a reference to the BO (meaning that
54 * it's safe to reuse it in the BO cache).
59 struct v3d_bo
*v3d_bo_alloc(struct v3d_screen
*screen
, uint32_t size
,
61 void v3d_bo_last_unreference(struct v3d_bo
*bo
);
62 void v3d_bo_last_unreference_locked_timed(struct v3d_bo
*bo
, time_t time
);
63 struct v3d_bo
*v3d_bo_open_name(struct v3d_screen
*screen
, uint32_t name
);
64 struct v3d_bo
*v3d_bo_open_dmabuf(struct v3d_screen
*screen
, int fd
);
65 bool v3d_bo_flink(struct v3d_bo
*bo
, uint32_t *name
);
66 int v3d_bo_get_dmabuf(struct v3d_bo
*bo
);
69 v3d_bo_set_reference(struct v3d_bo
**old_bo
, struct v3d_bo
*new_bo
)
71 if (pipe_reference(&(*old_bo
)->reference
, &new_bo
->reference
))
72 v3d_bo_last_unreference(*old_bo
);
76 static inline struct v3d_bo
*
77 v3d_bo_reference(struct v3d_bo
*bo
)
79 pipe_reference(NULL
, &bo
->reference
);
84 v3d_bo_unreference(struct v3d_bo
**bo
)
86 struct v3d_screen
*screen
;
91 /* Avoid the mutex for private BOs */
92 if (pipe_reference(&(*bo
)->reference
, NULL
))
93 v3d_bo_last_unreference(*bo
);
95 screen
= (*bo
)->screen
;
96 mtx_lock(&screen
->bo_handles_mutex
);
98 if (pipe_reference(&(*bo
)->reference
, NULL
)) {
99 util_hash_table_remove(screen
->bo_handles
,
100 (void *)(uintptr_t)(*bo
)->handle
);
101 v3d_bo_last_unreference(*bo
);
104 mtx_unlock(&screen
->bo_handles_mutex
);
111 v3d_bo_unreference_locked_timed(struct v3d_bo
**bo
, time_t time
)
116 if (pipe_reference(&(*bo
)->reference
, NULL
))
117 v3d_bo_last_unreference_locked_timed(*bo
, time
);
122 v3d_bo_map(struct v3d_bo
*bo
);
125 v3d_bo_map_unsynchronized(struct v3d_bo
*bo
);
128 v3d_bo_wait(struct v3d_bo
*bo
, uint64_t timeout_ns
, const char *reason
);
131 v3d_wait_seqno(struct v3d_screen
*screen
, uint64_t seqno
, uint64_t timeout_ns
,
135 v3d_bufmgr_destroy(struct pipe_screen
*pscreen
);
137 #endif /* VC5_BUFMGR_H */