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1/*2 * Copyright 2012-15 Advanced Micro Devices, Inc.3 *4 * Permission is hereby granted, free of charge, to any person obtaining a5 * copy of this software and associated documentation files (the "Software"),6 * to deal in the Software without restriction, including without limitation7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,8 * and/or sell copies of the Software, and to permit persons to whom the9 * Software is furnished to do so, subject to the following conditions:10 *11 * The above copyright notice and this permission notice shall be included in12 * all copies or substantial portions of the Software.13 *14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR20 * OTHER DEALINGS IN THE SOFTWARE.21 *22 * Authors: AMD23 *24 */25 26#include "dm_services.h"27 28#include "atom.h"29 30#include "include/bios_parser_types.h"31#include "bios_parser_helper.h"32#include "command_table_helper.h"33#include "command_table.h"34#include "bios_parser_types_internal.h"35 36uint8_t *bios_get_image(struct dc_bios *bp,37 uint32_t offset,38 uint32_t size)39{40 if (bp->bios && offset + size < bp->bios_size)41 return bp->bios + offset;42 else43 return NULL;44}45 46#include "reg_helper.h"47 48#define CTX \49 bios->ctx50#define REG(reg)\51 (bios->regs->reg)52 53#undef FN54#define FN(reg_name, field_name) \55 ATOM_ ## field_name ## _SHIFT, ATOM_ ## field_name56 57bool bios_is_accelerated_mode(58 struct dc_bios *bios)59{60 uint32_t acc_mode;61 REG_GET(BIOS_SCRATCH_6, S6_ACC_MODE, &acc_mode);62 return (acc_mode == 1);63}64 65 66void bios_set_scratch_acc_mode_change(67 struct dc_bios *bios,68 uint32_t state)69{70 REG_UPDATE(BIOS_SCRATCH_6, S6_ACC_MODE, state);71}72 73 74void bios_set_scratch_critical_state(75 struct dc_bios *bios,76 bool state)77{78 uint32_t critial_state = state ? 1 : 0;79 REG_UPDATE(BIOS_SCRATCH_6, S6_CRITICAL_STATE, critial_state);80}81 82uint32_t bios_get_vga_enabled_displays(83 struct dc_bios *bios)84{85 return REG_READ(BIOS_SCRATCH_3) & 0XFFFF;86}87 88