1 /* $NetBSD: amdgpu_bios_parser_helper.c,v 1.2 2021/12/18 23:45:00 riastradh Exp $ */
2
3 /*
4 * Copyright 2012-15 Advanced Micro Devices, Inc.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
23 *
24 * Authors: AMD
25 *
26 */
27
28 #include <sys/cdefs.h>
29 __KERNEL_RCSID(0, "$NetBSD: amdgpu_bios_parser_helper.c,v 1.2 2021/12/18 23:45:00 riastradh Exp $");
30
31 #include "dm_services.h"
32
33 #include "atom.h"
34
35 #include "include/bios_parser_types.h"
36 #include "bios_parser_helper.h"
37 #include "command_table_helper.h"
38 #include "command_table.h"
39 #include "bios_parser_types_internal.h"
40
bios_get_image(struct dc_bios * bp,uint32_t offset,uint32_t size)41 uint8_t *bios_get_image(struct dc_bios *bp,
42 uint32_t offset,
43 uint32_t size)
44 {
45 if (bp->bios && offset + size < bp->bios_size)
46 return bp->bios + offset;
47 else
48 return NULL;
49 }
50
51 #include "reg_helper.h"
52
53 #define CTX \
54 bios->ctx
55 #define REG(reg)\
56 (bios->regs->reg)
57
58 #undef FN
59 #define FN(reg_name, field_name) \
60 ATOM_ ## field_name ## _SHIFT, ATOM_ ## field_name
61
bios_is_accelerated_mode(struct dc_bios * bios)62 bool bios_is_accelerated_mode(
63 struct dc_bios *bios)
64 {
65 uint32_t acc_mode;
66 REG_GET(BIOS_SCRATCH_6, S6_ACC_MODE, &acc_mode);
67 return (acc_mode == 1);
68 }
69
70
bios_set_scratch_acc_mode_change(struct dc_bios * bios)71 void bios_set_scratch_acc_mode_change(
72 struct dc_bios *bios)
73 {
74 REG_UPDATE(BIOS_SCRATCH_6, S6_ACC_MODE, 1);
75 }
76
77
bios_set_scratch_critical_state(struct dc_bios * bios,bool state)78 void bios_set_scratch_critical_state(
79 struct dc_bios *bios,
80 bool state)
81 {
82 uint32_t critial_state = state ? 1 : 0;
83 REG_UPDATE(BIOS_SCRATCH_6, S6_CRITICAL_STATE, critial_state);
84 }
85
bios_get_vga_enabled_displays(struct dc_bios * bios)86 uint32_t bios_get_vga_enabled_displays(
87 struct dc_bios *bios)
88 {
89 uint32_t active_disp = 1;
90
91 active_disp = REG_READ(BIOS_SCRATCH_3) & 0XFFFF;
92 return active_disp;
93 }
94
95