1 /*
2 * Copyright (c) 2017 Intel Corporation
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 * 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:
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 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
21 * DEALINGS IN THE SOFTWARE.
22 */
23
24 #include <stdint.h>
25
26 #include "util/build_id.h"
27 #include "util/mesa-sha1.h"
28
29 #include "brw_context.h"
30 #include "brw_program.h"
31
32 static uint8_t driver_sha1[20];
33
34 void
brw_program_binary_init(unsigned device_id)35 brw_program_binary_init(unsigned device_id)
36 {
37 const struct build_id_note *note =
38 build_id_find_nhdr_for_addr(brw_program_binary_init);
39 assert(note);
40
41 /**
42 * With Mesa's megadrivers, taking the sha1 of i965_dri.so may not be
43 * unique. Therefore, we make a sha1 of the "i965" string and the sha1
44 * build id from i965_dri.so.
45 */
46 struct mesa_sha1 ctx;
47 _mesa_sha1_init(&ctx);
48 char renderer[10];
49 assert(device_id < 0x10000);
50 int len = snprintf(renderer, sizeof(renderer), "i965_%04x", device_id);
51 assert(len == sizeof(renderer) - 1);
52 _mesa_sha1_update(&ctx, renderer, len);
53 _mesa_sha1_update(&ctx, build_id_data(note), build_id_length(note));
54 _mesa_sha1_final(&ctx, driver_sha1);
55 }
56
57 void
brw_get_program_binary_driver_sha1(struct gl_context * ctx,uint8_t * sha1)58 brw_get_program_binary_driver_sha1(struct gl_context *ctx, uint8_t *sha1)
59 {
60 memcpy(sha1, driver_sha1, sizeof(uint8_t) * 20);
61 }
62
63 /* This is just a wrapper around brw_program_deserialize_nir() as i965
64 * doesn't need gl_shader_program like other drivers do.
65 */
66 void
brw_deserialize_program_binary(struct gl_context * ctx,struct gl_shader_program * shProg,struct gl_program * prog)67 brw_deserialize_program_binary(struct gl_context *ctx,
68 struct gl_shader_program *shProg,
69 struct gl_program *prog)
70 {
71 brw_program_deserialize_nir(ctx, prog, prog->info.stage);
72 }
73