xref: /linux/drivers/gpu/drm/etnaviv/etnaviv_cmdbuf.h (revision ef96152e6a36e0510387cb174178b7982c1ae879)
1 /*
2  * Copyright (C) 2017 Etnaviv Project
3  *
4  * This program is free software; you can redistribute it and/or modify it
5  * under the terms of the GNU General Public License version 2 as published by
6  * the Free Software Foundation.
7  *
8  * This program is distributed in the hope that it will be useful, but WITHOUT
9  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
10  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
11  * more details.
12  *
13  * You should have received a copy of the GNU General Public License along with
14  * this program.  If not, see <http://www.gnu.org/licenses/>.
15  */
16 
17 #ifndef __ETNAVIV_CMDBUF_H__
18 #define __ETNAVIV_CMDBUF_H__
19 
20 #include <linux/types.h>
21 
22 struct etnaviv_gpu;
23 struct etnaviv_cmdbuf_suballoc;
24 
25 struct etnaviv_cmdbuf {
26 	/* suballocator this cmdbuf is allocated from */
27 	struct etnaviv_cmdbuf_suballoc *suballoc;
28 	/* user context key, must be unique between all active users */
29 	struct etnaviv_file_private *ctx;
30 	/* cmdbuf properties */
31 	int suballoc_offset;
32 	void *vaddr;
33 	u32 size;
34 	u32 user_size;
35 	/* fence after which this buffer is to be disposed */
36 	struct dma_fence *fence;
37 	/* target exec state */
38 	u32 exec_state;
39 	/* per GPU in-flight list */
40 	struct list_head node;
41 	/* BOs attached to this command buffer */
42 	unsigned int nr_bos;
43 	struct etnaviv_vram_mapping *bo_map[0];
44 };
45 
46 struct etnaviv_cmdbuf_suballoc *
47 etnaviv_cmdbuf_suballoc_new(struct etnaviv_gpu * gpu);
48 void etnaviv_cmdbuf_suballoc_destroy(struct etnaviv_cmdbuf_suballoc *suballoc);
49 
50 struct etnaviv_cmdbuf *
51 etnaviv_cmdbuf_new(struct etnaviv_cmdbuf_suballoc *suballoc, u32 size,
52 		   size_t nr_bos);
53 void etnaviv_cmdbuf_free(struct etnaviv_cmdbuf *cmdbuf);
54 
55 u32 etnaviv_cmdbuf_get_va(struct etnaviv_cmdbuf *buf);
56 dma_addr_t etnaviv_cmdbuf_get_pa(struct etnaviv_cmdbuf *buf);
57 
58 #endif /* __ETNAVIV_CMDBUF_H__ */
59