1 /*
2 * Copyright © 2022 Advanced Micro Devices, Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining
5 * a copy of this software and associated documentation files (the
6 * "Software"), to deal in the Software without restriction, including
7 * without limitation the rights to use, copy, modify, merge, publish,
8 * distribute, sub license, and/or sell copies of the Software, and to
9 * permit persons to whom the Software is furnished to do so, subject to
10 * the following conditions:
11 *
12 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
13 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
14 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
15 * NON-INFRINGEMENT. IN NO EVENT SHALL THE COPYRIGHT HOLDERS, AUTHORS
16 * AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
17 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
18 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
19 * USE OR OTHER DEALINGS IN THE SOFTWARE.
20 *
21 * The above copyright notice and this permission notice (including the
22 * next paragraph) shall be included in all copies or substantial portions
23 * of the Software.
24 */
25
26 #include "radeon_vcn.h"
27
28 /* vcn unified queue (sq) ib header */
rvcn_sq_header(struct radeon_cmdbuf * cs,struct rvcn_sq_var * sq,bool enc)29 void rvcn_sq_header(struct radeon_cmdbuf *cs,
30 struct rvcn_sq_var *sq,
31 bool enc)
32 {
33 /* vcn ib signature */
34 radeon_emit(cs, RADEON_VCN_SIGNATURE_SIZE);
35 radeon_emit(cs, RADEON_VCN_SIGNATURE);
36 sq->ib_checksum = &cs->current.buf[cs->current.cdw];
37 radeon_emit(cs, 0);
38 sq->ib_total_size_in_dw = &cs->current.buf[cs->current.cdw];
39 radeon_emit(cs, 0);
40
41 /* vcn ib engine info */
42 radeon_emit(cs, RADEON_VCN_ENGINE_INFO_SIZE);
43 radeon_emit(cs, RADEON_VCN_ENGINE_INFO);
44 radeon_emit(cs, enc ? RADEON_VCN_ENGINE_TYPE_ENCODE
45 : RADEON_VCN_ENGINE_TYPE_DECODE);
46 radeon_emit(cs, 0);
47 }
48
rvcn_sq_tail(struct radeon_cmdbuf * cs,struct rvcn_sq_var * sq)49 void rvcn_sq_tail(struct radeon_cmdbuf *cs,
50 struct rvcn_sq_var *sq)
51 {
52 uint32_t *end;
53 uint32_t size_in_dw;
54 uint32_t checksum = 0;
55
56 if (sq->ib_checksum == NULL || sq->ib_total_size_in_dw == NULL)
57 return;
58
59 end = &cs->current.buf[cs->current.cdw];
60 size_in_dw = end - sq->ib_total_size_in_dw - 1;
61 *sq->ib_total_size_in_dw = size_in_dw;
62 *(sq->ib_total_size_in_dw + 4) = size_in_dw * sizeof(uint32_t);
63
64 for (int i = 0; i < size_in_dw; i++)
65 checksum += *(sq->ib_checksum + 2 + i);
66
67 *sq->ib_checksum = checksum;
68 }
69