drivers/gpu/drm/etnaviv/etnaviv_cmdbuf.h

   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__ */