amdgpu_bios_parser_helper.c revision 1.2 
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
41uint8_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
62bool 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
71void 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
78void 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
86uint32_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