1 /* 2 * Copyright 2018 Chromium. 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 * on the rights to use, copy, modify, merge, publish, distribute, sub 8 * license, and/or sell copies of the Software, and to permit persons to whom 9 * the 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 NON-INFRINGEMENT. IN NO EVENT SHALL 18 * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, 19 * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR 20 * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE 21 * USE OR OTHER DEALINGS IN THE SOFTWARE. 22 */ 23 24 #ifndef VIRGL_TRANSFER_QUEUE_H 25 #define VIRGL_TRANSFER_QUEUE_H 26 27 #include "pipe/p_defines.h" 28 #include "util/list.h" 29 30 struct virgl_cmd_buf; 31 struct virgl_screen; 32 struct virgl_context; 33 struct virgl_transfer; 34 35 struct virgl_transfer_queue { 36 struct list_head transfer_list; 37 struct virgl_screen *vs; 38 struct virgl_context *vctx; 39 struct virgl_cmd_buf *tbuf; 40 uint32_t num_dwords; 41 }; 42 43 void virgl_transfer_queue_init(struct virgl_transfer_queue *queue, 44 struct virgl_context *vctx); 45 46 void virgl_transfer_queue_fini(struct virgl_transfer_queue *queue); 47 48 int virgl_transfer_queue_unmap(struct virgl_transfer_queue *queue, 49 struct virgl_transfer *transfer); 50 51 int virgl_transfer_queue_clear(struct virgl_transfer_queue *queue, 52 struct virgl_cmd_buf *buf); 53 54 bool virgl_transfer_queue_is_queued(struct virgl_transfer_queue *queue, 55 struct virgl_transfer *transfer); 56 57 /* 58 * Search the transfer queue for a transfer suitable for extension and 59 * extend it to include the specified data. 60 */ 61 bool virgl_transfer_queue_extend_buffer(struct virgl_transfer_queue *queue, 62 const struct virgl_hw_res *hw_res, 63 unsigned offset, unsigned size, 64 const void *data); 65 66 #endif /* VIRGL_TRANSFER_QUEUE_H */ 67