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      1 /*	$NetBSD: amdgpu_bios_parser.c,v 1.4 2021/12/19 10:59:36 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.c,v 1.4 2021/12/19 10:59:36 riastradh Exp $");
     30 
     31 #include <linux/slab.h>
     32 
     33 #include "dm_services.h"
     34 
     35 #include "atom.h"
     36 
     37 #include "dc_bios_types.h"
     38 #include "include/gpio_service_interface.h"
     39 #include "include/grph_object_ctrl_defs.h"
     40 #include "include/bios_parser_interface.h"
     41 #include "include/i2caux_interface.h"
     42 #include "include/logger_interface.h"
     43 
     44 #include "command_table.h"
     45 #include "bios_parser_helper.h"
     46 #include "command_table_helper.h"
     47 #include "bios_parser.h"
     48 #include "bios_parser_types_internal.h"
     49 #include "bios_parser_interface.h"
     50 
     51 #include "bios_parser_common.h"
     52 
     53 #include "dc.h"
     54 
     55 #define THREE_PERCENT_OF_10000 300
     56 
     57 #define LAST_RECORD_TYPE 0xff
     58 
     59 #define DC_LOGGER \
     60 	bp->base.ctx->logger
     61 
     62 #define DATA_TABLES(table) (bp->master_data_tbl->ListOfDataTables.table)
     63 
     64 static void get_atom_data_table_revision(
     65 	ATOM_COMMON_TABLE_HEADER *atom_data_tbl,
     66 	struct atom_data_revision *tbl_revision);
     67 static uint32_t get_src_obj_list(struct bios_parser *bp, ATOM_OBJECT *object,
     68 	uint16_t **id_list);
     69 static ATOM_OBJECT *get_bios_object(struct bios_parser *bp,
     70 	struct graphics_object_id id);
     71 static enum bp_result get_gpio_i2c_info(struct bios_parser *bp,
     72 	ATOM_I2C_RECORD *record,
     73 	struct graphics_object_i2c_info *info);
     74 static ATOM_HPD_INT_RECORD *get_hpd_record(struct bios_parser *bp,
     75 	ATOM_OBJECT *object);
     76 static struct device_id device_type_from_device_id(uint16_t device_id);
     77 static uint32_t signal_to_ss_id(enum as_signal_type signal);
     78 static uint32_t get_support_mask_for_device_id(struct device_id device_id);
     79 static ATOM_ENCODER_CAP_RECORD_V2 *get_encoder_cap_record(
     80 	struct bios_parser *bp,
     81 	ATOM_OBJECT *object);
     82 
     83 #define BIOS_IMAGE_SIZE_OFFSET 2
     84 #define BIOS_IMAGE_SIZE_UNIT 512
     85 
     86 /*****************************************************************************/
     87 static bool bios_parser_construct(
     88 	struct bios_parser *bp,
     89 	struct bp_init_data *init,
     90 	enum dce_version dce_version);
     91 
     92 static uint8_t bios_parser_get_connectors_number(
     93 	struct dc_bios *dcb);
     94 
     95 static enum bp_result bios_parser_get_embedded_panel_info(
     96 	struct dc_bios *dcb,
     97 	struct embedded_panel_info *info);
     98 
     99 /*****************************************************************************/
    100 
    101 struct dc_bios *bios_parser_create(
    102 	struct bp_init_data *init,
    103 	enum dce_version dce_version)
    104 {
    105 	struct bios_parser *bp = NULL;
    106 
    107 	bp = kzalloc(sizeof(struct bios_parser), GFP_KERNEL);
    108 	if (!bp)
    109 		return NULL;
    110 
    111 	if (bios_parser_construct(bp, init, dce_version))
    112 		return &bp->base;
    113 
    114 	kfree(bp);
    115 	BREAK_TO_DEBUGGER();
    116 	return NULL;
    117 }
    118 
    119 static void bios_parser_destruct(struct bios_parser *bp)
    120 {
    121 	kfree(bp->base.bios_local_image);
    122 	kfree(bp->base.integrated_info);
    123 }
    124 
    125 static void bios_parser_destroy(struct dc_bios **dcb)
    126 {
    127 	struct bios_parser *bp = BP_FROM_DCB(*dcb);
    128 
    129 	if (!bp) {
    130 		BREAK_TO_DEBUGGER();
    131 		return;
    132 	}
    133 
    134 	bios_parser_destruct(bp);
    135 
    136 	kfree(bp);
    137 	*dcb = NULL;
    138 }
    139 
    140 static uint8_t get_number_of_objects(struct bios_parser *bp, uint32_t offset)
    141 {
    142 	ATOM_OBJECT_TABLE *table;
    143 
    144 	uint32_t object_table_offset = bp->object_info_tbl_offset + offset;
    145 
    146 	table = GET_IMAGE(ATOM_OBJECT_TABLE, object_table_offset);
    147 
    148 	if (!table)
    149 		return 0;
    150 	else
    151 		return table->ucNumberOfObjects;
    152 }
    153 
    154 static uint8_t bios_parser_get_connectors_number(struct dc_bios *dcb)
    155 {
    156 	struct bios_parser *bp = BP_FROM_DCB(dcb);
    157 
    158 	return get_number_of_objects(bp,
    159 		le16_to_cpu(bp->object_info_tbl.v1_1->usConnectorObjectTableOffset));
    160 }
    161 
    162 static struct graphics_object_id bios_parser_get_connector_id(
    163 	struct dc_bios *dcb,
    164 	uint8_t i)
    165 {
    166 	struct bios_parser *bp = BP_FROM_DCB(dcb);
    167 	struct graphics_object_id object_id = dal_graphics_object_id_init(
    168 		0, ENUM_ID_UNKNOWN, OBJECT_TYPE_UNKNOWN);
    169 	uint16_t id;
    170 
    171 	uint32_t connector_table_offset = bp->object_info_tbl_offset
    172 		+ le16_to_cpu(bp->object_info_tbl.v1_1->usConnectorObjectTableOffset);
    173 
    174 	ATOM_OBJECT_TABLE *tbl =
    175 		GET_IMAGE(ATOM_OBJECT_TABLE, connector_table_offset);
    176 
    177 	if (!tbl) {
    178 		dm_error("Can't get connector table from atom bios.\n");
    179 		return object_id;
    180 	}
    181 
    182 	if (tbl->ucNumberOfObjects <= i) {
    183 		dm_error("Can't find connector id %d in connector table of size %d.\n",
    184 			 i, tbl->ucNumberOfObjects);
    185 		return object_id;
    186 	}
    187 
    188 	id = le16_to_cpu(tbl->asObjects[i].usObjectID);
    189 	object_id = object_id_from_bios_object_id(id);
    190 	return object_id;
    191 }
    192 
    193 static enum bp_result bios_parser_get_src_obj(struct dc_bios *dcb,
    194 	struct graphics_object_id object_id, uint32_t index,
    195 	struct graphics_object_id *src_object_id)
    196 {
    197 	uint32_t number;
    198 	uint16_t *id;
    199 	ATOM_OBJECT *object;
    200 	struct bios_parser *bp = BP_FROM_DCB(dcb);
    201 
    202 	if (!src_object_id)
    203 		return BP_RESULT_BADINPUT;
    204 
    205 	object = get_bios_object(bp, object_id);
    206 
    207 	if (!object) {
    208 		BREAK_TO_DEBUGGER(); /* Invalid object id */
    209 		return BP_RESULT_BADINPUT;
    210 	}
    211 
    212 	number = get_src_obj_list(bp, object, &id);
    213 
    214 	if (number <= index)
    215 		return BP_RESULT_BADINPUT;
    216 
    217 	*src_object_id = object_id_from_bios_object_id(id[index]);
    218 
    219 	return BP_RESULT_OK;
    220 }
    221 
    222 static enum bp_result bios_parser_get_i2c_info(struct dc_bios *dcb,
    223 	struct graphics_object_id id,
    224 	struct graphics_object_i2c_info *info)
    225 {
    226 	uint32_t offset;
    227 	ATOM_OBJECT *object;
    228 	ATOM_COMMON_RECORD_HEADER *header;
    229 	ATOM_I2C_RECORD *record;
    230 	struct bios_parser *bp = BP_FROM_DCB(dcb);
    231 
    232 	if (!info)
    233 		return BP_RESULT_BADINPUT;
    234 
    235 	object = get_bios_object(bp, id);
    236 
    237 	if (!object)
    238 		return BP_RESULT_BADINPUT;
    239 
    240 	offset = le16_to_cpu(object->usRecordOffset)
    241 			+ bp->object_info_tbl_offset;
    242 
    243 	for (;;) {
    244 		header = GET_IMAGE(ATOM_COMMON_RECORD_HEADER, offset);
    245 
    246 		if (!header)
    247 			return BP_RESULT_BADBIOSTABLE;
    248 
    249 		if (LAST_RECORD_TYPE == header->ucRecordType ||
    250 			!header->ucRecordSize)
    251 			break;
    252 
    253 		if (ATOM_I2C_RECORD_TYPE == header->ucRecordType
    254 			&& sizeof(ATOM_I2C_RECORD) <= header->ucRecordSize) {
    255 			/* get the I2C info */
    256 			record = (ATOM_I2C_RECORD *) header;
    257 
    258 			if (get_gpio_i2c_info(bp, record, info) == BP_RESULT_OK)
    259 				return BP_RESULT_OK;
    260 		}
    261 
    262 		offset += header->ucRecordSize;
    263 	}
    264 
    265 	return BP_RESULT_NORECORD;
    266 }
    267 
    268 static enum bp_result bios_parser_get_hpd_info(struct dc_bios *dcb,
    269 	struct graphics_object_id id,
    270 	struct graphics_object_hpd_info *info)
    271 {
    272 	struct bios_parser *bp = BP_FROM_DCB(dcb);
    273 	ATOM_OBJECT *object;
    274 	ATOM_HPD_INT_RECORD *record = NULL;
    275 
    276 	if (!info)
    277 		return BP_RESULT_BADINPUT;
    278 
    279 	object = get_bios_object(bp, id);
    280 
    281 	if (!object)
    282 		return BP_RESULT_BADINPUT;
    283 
    284 	record = get_hpd_record(bp, object);
    285 
    286 	if (record != NULL) {
    287 		info->hpd_int_gpio_uid = record->ucHPDIntGPIOID;
    288 		info->hpd_active = record->ucPlugged_PinState;
    289 		return BP_RESULT_OK;
    290 	}
    291 
    292 	return BP_RESULT_NORECORD;
    293 }
    294 
    295 static enum bp_result bios_parser_get_device_tag_record(
    296 	struct bios_parser *bp,
    297 	ATOM_OBJECT *object,
    298 	ATOM_CONNECTOR_DEVICE_TAG_RECORD **record)
    299 {
    300 	ATOM_COMMON_RECORD_HEADER *header;
    301 	uint32_t offset;
    302 
    303 	offset = le16_to_cpu(object->usRecordOffset)
    304 			+ bp->object_info_tbl_offset;
    305 
    306 	for (;;) {
    307 		header = GET_IMAGE(ATOM_COMMON_RECORD_HEADER, offset);
    308 
    309 		if (!header)
    310 			return BP_RESULT_BADBIOSTABLE;
    311 
    312 		offset += header->ucRecordSize;
    313 
    314 		if (LAST_RECORD_TYPE == header->ucRecordType ||
    315 			!header->ucRecordSize)
    316 			break;
    317 
    318 		if (ATOM_CONNECTOR_DEVICE_TAG_RECORD_TYPE !=
    319 			header->ucRecordType)
    320 			continue;
    321 
    322 		if (sizeof(ATOM_CONNECTOR_DEVICE_TAG) > header->ucRecordSize)
    323 			continue;
    324 
    325 		*record = (ATOM_CONNECTOR_DEVICE_TAG_RECORD *) header;
    326 		return BP_RESULT_OK;
    327 	}
    328 
    329 	return BP_RESULT_NORECORD;
    330 }
    331 
    332 static enum bp_result bios_parser_get_device_tag(
    333 	struct dc_bios *dcb,
    334 	struct graphics_object_id connector_object_id,
    335 	uint32_t device_tag_index,
    336 	struct connector_device_tag_info *info)
    337 {
    338 	struct bios_parser *bp = BP_FROM_DCB(dcb);
    339 	ATOM_OBJECT *object;
    340 	ATOM_CONNECTOR_DEVICE_TAG_RECORD *record = NULL;
    341 	ATOM_CONNECTOR_DEVICE_TAG *device_tag;
    342 
    343 	if (!info)
    344 		return BP_RESULT_BADINPUT;
    345 
    346 	/* getBiosObject will return MXM object */
    347 	object = get_bios_object(bp, connector_object_id);
    348 
    349 	if (!object) {
    350 		BREAK_TO_DEBUGGER(); /* Invalid object id */
    351 		return BP_RESULT_BADINPUT;
    352 	}
    353 
    354 	if (bios_parser_get_device_tag_record(bp, object, &record)
    355 		!= BP_RESULT_OK)
    356 		return BP_RESULT_NORECORD;
    357 
    358 	if (device_tag_index >= record->ucNumberOfDevice)
    359 		return BP_RESULT_NORECORD;
    360 
    361 	device_tag = &record->asDeviceTag[device_tag_index];
    362 
    363 	info->acpi_device = le32_to_cpu(device_tag->ulACPIDeviceEnum);
    364 	info->dev_id =
    365 		device_type_from_device_id(le16_to_cpu(device_tag->usDeviceID));
    366 
    367 	return BP_RESULT_OK;
    368 }
    369 
    370 static enum bp_result get_firmware_info_v1_4(
    371 	struct bios_parser *bp,
    372 	struct dc_firmware_info *info);
    373 static enum bp_result get_firmware_info_v2_1(
    374 	struct bios_parser *bp,
    375 	struct dc_firmware_info *info);
    376 static enum bp_result get_firmware_info_v2_2(
    377 	struct bios_parser *bp,
    378 	struct dc_firmware_info *info);
    379 
    380 static enum bp_result bios_parser_get_firmware_info(
    381 	struct dc_bios *dcb,
    382 	struct dc_firmware_info *info)
    383 {
    384 	struct bios_parser *bp = BP_FROM_DCB(dcb);
    385 	enum bp_result result = BP_RESULT_BADBIOSTABLE;
    386 	ATOM_COMMON_TABLE_HEADER *header;
    387 	struct atom_data_revision revision;
    388 
    389 	if (info && DATA_TABLES(FirmwareInfo)) {
    390 		header = GET_IMAGE(ATOM_COMMON_TABLE_HEADER,
    391 			DATA_TABLES(FirmwareInfo));
    392 		get_atom_data_table_revision(header, &revision);
    393 		switch (revision.major) {
    394 		case 1:
    395 			switch (revision.minor) {
    396 			case 4:
    397 				result = get_firmware_info_v1_4(bp, info);
    398 				break;
    399 			default:
    400 				break;
    401 			}
    402 			break;
    403 
    404 		case 2:
    405 			switch (revision.minor) {
    406 			case 1:
    407 				result = get_firmware_info_v2_1(bp, info);
    408 				break;
    409 			case 2:
    410 				result = get_firmware_info_v2_2(bp, info);
    411 				break;
    412 			default:
    413 				break;
    414 			}
    415 			break;
    416 		default:
    417 			break;
    418 		}
    419 	}
    420 
    421 	return result;
    422 }
    423 
    424 static enum bp_result get_firmware_info_v1_4(
    425 	struct bios_parser *bp,
    426 	struct dc_firmware_info *info)
    427 {
    428 	ATOM_FIRMWARE_INFO_V1_4 *firmware_info =
    429 		GET_IMAGE(ATOM_FIRMWARE_INFO_V1_4,
    430 			DATA_TABLES(FirmwareInfo));
    431 
    432 	if (!info)
    433 		return BP_RESULT_BADINPUT;
    434 
    435 	if (!firmware_info)
    436 		return BP_RESULT_BADBIOSTABLE;
    437 
    438 	memset(info, 0, sizeof(*info));
    439 
    440 	/* Pixel clock pll information. We need to convert from 10KHz units into
    441 	 * KHz units */
    442 	info->pll_info.crystal_frequency =
    443 		le16_to_cpu(firmware_info->usReferenceClock) * 10;
    444 	info->pll_info.min_input_pxl_clk_pll_frequency =
    445 		le16_to_cpu(firmware_info->usMinPixelClockPLL_Input) * 10;
    446 	info->pll_info.max_input_pxl_clk_pll_frequency =
    447 		le16_to_cpu(firmware_info->usMaxPixelClockPLL_Input) * 10;
    448 	info->pll_info.min_output_pxl_clk_pll_frequency =
    449 		le32_to_cpu(firmware_info->ulMinPixelClockPLL_Output) * 10;
    450 	info->pll_info.max_output_pxl_clk_pll_frequency =
    451 		le32_to_cpu(firmware_info->ulMaxPixelClockPLL_Output) * 10;
    452 
    453 	if (firmware_info->usFirmwareCapability.sbfAccess.MemoryClockSS_Support)
    454 		/* Since there is no information on the SS, report conservative
    455 		 * value 3% for bandwidth calculation */
    456 		/* unit of 0.01% */
    457 		info->feature.memory_clk_ss_percentage = THREE_PERCENT_OF_10000;
    458 
    459 	if (firmware_info->usFirmwareCapability.sbfAccess.EngineClockSS_Support)
    460 		/* Since there is no information on the SS,report conservative
    461 		 * value 3% for bandwidth calculation */
    462 		/* unit of 0.01% */
    463 		info->feature.engine_clk_ss_percentage = THREE_PERCENT_OF_10000;
    464 
    465 	return BP_RESULT_OK;
    466 }
    467 
    468 static enum bp_result get_ss_info_v3_1(
    469 	struct bios_parser *bp,
    470 	uint32_t id,
    471 	uint32_t index,
    472 	struct spread_spectrum_info *ss_info);
    473 
    474 static enum bp_result get_firmware_info_v2_1(
    475 	struct bios_parser *bp,
    476 	struct dc_firmware_info *info)
    477 {
    478 	ATOM_FIRMWARE_INFO_V2_1 *firmwareInfo =
    479 		GET_IMAGE(ATOM_FIRMWARE_INFO_V2_1, DATA_TABLES(FirmwareInfo));
    480 	struct spread_spectrum_info internalSS;
    481 	uint32_t index;
    482 
    483 	if (!info)
    484 		return BP_RESULT_BADINPUT;
    485 
    486 	if (!firmwareInfo)
    487 		return BP_RESULT_BADBIOSTABLE;
    488 
    489 	memset(info, 0, sizeof(*info));
    490 
    491 	/* Pixel clock pll information. We need to convert from 10KHz units into
    492 	 * KHz units */
    493 	info->pll_info.crystal_frequency =
    494 		le16_to_cpu(firmwareInfo->usCoreReferenceClock) * 10;
    495 	info->pll_info.min_input_pxl_clk_pll_frequency =
    496 		le16_to_cpu(firmwareInfo->usMinPixelClockPLL_Input) * 10;
    497 	info->pll_info.max_input_pxl_clk_pll_frequency =
    498 		le16_to_cpu(firmwareInfo->usMaxPixelClockPLL_Input) * 10;
    499 	info->pll_info.min_output_pxl_clk_pll_frequency =
    500 		le32_to_cpu(firmwareInfo->ulMinPixelClockPLL_Output) * 10;
    501 	info->pll_info.max_output_pxl_clk_pll_frequency =
    502 		le32_to_cpu(firmwareInfo->ulMaxPixelClockPLL_Output) * 10;
    503 	info->default_display_engine_pll_frequency =
    504 		le32_to_cpu(firmwareInfo->ulDefaultDispEngineClkFreq) * 10;
    505 	info->external_clock_source_frequency_for_dp =
    506 		le16_to_cpu(firmwareInfo->usUniphyDPModeExtClkFreq) * 10;
    507 	info->min_allowed_bl_level = firmwareInfo->ucMinAllowedBL_Level;
    508 
    509 	/* There should be only one entry in the SS info table for Memory Clock
    510 	 */
    511 	index = 0;
    512 	if (firmwareInfo->usFirmwareCapability.sbfAccess.MemoryClockSS_Support)
    513 		/* Since there is no information for external SS, report
    514 		 *  conservative value 3% for bandwidth calculation */
    515 		/* unit of 0.01% */
    516 		info->feature.memory_clk_ss_percentage = THREE_PERCENT_OF_10000;
    517 	else if (get_ss_info_v3_1(bp,
    518 		ASIC_INTERNAL_MEMORY_SS, index, &internalSS) == BP_RESULT_OK) {
    519 		if (internalSS.spread_spectrum_percentage) {
    520 			info->feature.memory_clk_ss_percentage =
    521 				internalSS.spread_spectrum_percentage;
    522 			if (internalSS.type.CENTER_MODE) {
    523 				/* if it is centermode, the exact SS Percentage
    524 				 * will be round up of half of the percentage
    525 				 * reported in the SS table */
    526 				++info->feature.memory_clk_ss_percentage;
    527 				info->feature.memory_clk_ss_percentage /= 2;
    528 			}
    529 		}
    530 	}
    531 
    532 	/* There should be only one entry in the SS info table for Engine Clock
    533 	 */
    534 	index = 1;
    535 	if (firmwareInfo->usFirmwareCapability.sbfAccess.EngineClockSS_Support)
    536 		/* Since there is no information for external SS, report
    537 		 * conservative value 3% for bandwidth calculation */
    538 		/* unit of 0.01% */
    539 		info->feature.engine_clk_ss_percentage = THREE_PERCENT_OF_10000;
    540 	else if (get_ss_info_v3_1(bp,
    541 		ASIC_INTERNAL_ENGINE_SS, index, &internalSS) == BP_RESULT_OK) {
    542 		if (internalSS.spread_spectrum_percentage) {
    543 			info->feature.engine_clk_ss_percentage =
    544 				internalSS.spread_spectrum_percentage;
    545 			if (internalSS.type.CENTER_MODE) {
    546 				/* if it is centermode, the exact SS Percentage
    547 				 * will be round up of half of the percentage
    548 				 * reported in the SS table */
    549 				++info->feature.engine_clk_ss_percentage;
    550 				info->feature.engine_clk_ss_percentage /= 2;
    551 			}
    552 		}
    553 	}
    554 
    555 	return BP_RESULT_OK;
    556 }
    557 
    558 static enum bp_result get_firmware_info_v2_2(
    559 	struct bios_parser *bp,
    560 	struct dc_firmware_info *info)
    561 {
    562 	ATOM_FIRMWARE_INFO_V2_2 *firmware_info;
    563 	struct spread_spectrum_info internal_ss;
    564 	uint32_t index;
    565 
    566 	if (!info)
    567 		return BP_RESULT_BADINPUT;
    568 
    569 	firmware_info = GET_IMAGE(ATOM_FIRMWARE_INFO_V2_2,
    570 		DATA_TABLES(FirmwareInfo));
    571 
    572 	if (!firmware_info)
    573 		return BP_RESULT_BADBIOSTABLE;
    574 
    575 	memset(info, 0, sizeof(*info));
    576 
    577 	/* Pixel clock pll information. We need to convert from 10KHz units into
    578 	 * KHz units */
    579 	info->pll_info.crystal_frequency =
    580 		le16_to_cpu(firmware_info->usCoreReferenceClock) * 10;
    581 	info->pll_info.min_input_pxl_clk_pll_frequency =
    582 		le16_to_cpu(firmware_info->usMinPixelClockPLL_Input) * 10;
    583 	info->pll_info.max_input_pxl_clk_pll_frequency =
    584 		le16_to_cpu(firmware_info->usMaxPixelClockPLL_Input) * 10;
    585 	info->pll_info.min_output_pxl_clk_pll_frequency =
    586 		le32_to_cpu(firmware_info->ulMinPixelClockPLL_Output) * 10;
    587 	info->pll_info.max_output_pxl_clk_pll_frequency =
    588 		le32_to_cpu(firmware_info->ulMaxPixelClockPLL_Output) * 10;
    589 	info->default_display_engine_pll_frequency =
    590 		le32_to_cpu(firmware_info->ulDefaultDispEngineClkFreq) * 10;
    591 	info->external_clock_source_frequency_for_dp =
    592 		le16_to_cpu(firmware_info->usUniphyDPModeExtClkFreq) * 10;
    593 
    594 	/* There should be only one entry in the SS info table for Memory Clock
    595 	 */
    596 	index = 0;
    597 	if (firmware_info->usFirmwareCapability.sbfAccess.MemoryClockSS_Support)
    598 		/* Since there is no information for external SS, report
    599 		 *  conservative value 3% for bandwidth calculation */
    600 		/* unit of 0.01% */
    601 		info->feature.memory_clk_ss_percentage = THREE_PERCENT_OF_10000;
    602 	else if (get_ss_info_v3_1(bp,
    603 			ASIC_INTERNAL_MEMORY_SS, index, &internal_ss) == BP_RESULT_OK) {
    604 		if (internal_ss.spread_spectrum_percentage) {
    605 			info->feature.memory_clk_ss_percentage =
    606 					internal_ss.spread_spectrum_percentage;
    607 			if (internal_ss.type.CENTER_MODE) {
    608 				/* if it is centermode, the exact SS Percentage
    609 				 * will be round up of half of the percentage
    610 				 * reported in the SS table */
    611 				++info->feature.memory_clk_ss_percentage;
    612 				info->feature.memory_clk_ss_percentage /= 2;
    613 			}
    614 		}
    615 	}
    616 
    617 	/* There should be only one entry in the SS info table for Engine Clock
    618 	 */
    619 	index = 1;
    620 	if (firmware_info->usFirmwareCapability.sbfAccess.EngineClockSS_Support)
    621 		/* Since there is no information for external SS, report
    622 		 * conservative value 3% for bandwidth calculation */
    623 		/* unit of 0.01% */
    624 		info->feature.engine_clk_ss_percentage = THREE_PERCENT_OF_10000;
    625 	else if (get_ss_info_v3_1(bp,
    626 			ASIC_INTERNAL_ENGINE_SS, index, &internal_ss) == BP_RESULT_OK) {
    627 		if (internal_ss.spread_spectrum_percentage) {
    628 			info->feature.engine_clk_ss_percentage =
    629 					internal_ss.spread_spectrum_percentage;
    630 			if (internal_ss.type.CENTER_MODE) {
    631 				/* if it is centermode, the exact SS Percentage
    632 				 * will be round up of half of the percentage
    633 				 * reported in the SS table */
    634 				++info->feature.engine_clk_ss_percentage;
    635 				info->feature.engine_clk_ss_percentage /= 2;
    636 			}
    637 		}
    638 	}
    639 
    640 	/* Remote Display */
    641 	info->remote_display_config = firmware_info->ucRemoteDisplayConfig;
    642 
    643 	/* Is allowed minimum BL level */
    644 	info->min_allowed_bl_level = firmware_info->ucMinAllowedBL_Level;
    645 	/* Used starting from CI */
    646 	info->smu_gpu_pll_output_freq =
    647 			(uint32_t) (le32_to_cpu(firmware_info->ulGPUPLL_OutputFreq) * 10);
    648 
    649 	return BP_RESULT_OK;
    650 }
    651 
    652 static enum bp_result get_ss_info_v3_1(
    653 	struct bios_parser *bp,
    654 	uint32_t id,
    655 	uint32_t index,
    656 	struct spread_spectrum_info *ss_info)
    657 {
    658 	ATOM_ASIC_INTERNAL_SS_INFO_V3 *ss_table_header_include;
    659 	ATOM_ASIC_SS_ASSIGNMENT_V3 *tbl;
    660 	uint32_t table_size;
    661 	uint32_t i;
    662 	uint32_t table_index = 0;
    663 
    664 	if (!ss_info)
    665 		return BP_RESULT_BADINPUT;
    666 
    667 	if (!DATA_TABLES(ASIC_InternalSS_Info))
    668 		return BP_RESULT_UNSUPPORTED;
    669 
    670 	ss_table_header_include = GET_IMAGE(ATOM_ASIC_INTERNAL_SS_INFO_V3,
    671 		DATA_TABLES(ASIC_InternalSS_Info));
    672 	table_size =
    673 		(le16_to_cpu(ss_table_header_include->sHeader.usStructureSize)
    674 				- sizeof(ATOM_COMMON_TABLE_HEADER))
    675 				/ sizeof(ATOM_ASIC_SS_ASSIGNMENT_V3);
    676 
    677 	tbl = (ATOM_ASIC_SS_ASSIGNMENT_V3 *)
    678 				&ss_table_header_include->asSpreadSpectrum[0];
    679 
    680 	memset(ss_info, 0, sizeof(struct spread_spectrum_info));
    681 
    682 	for (i = 0; i < table_size; i++) {
    683 		if (tbl[i].ucClockIndication != (uint8_t) id)
    684 			continue;
    685 
    686 		if (table_index != index) {
    687 			table_index++;
    688 			continue;
    689 		}
    690 		/* VBIOS introduced new defines for Version 3, same values as
    691 		 *  before, so now use these new ones for Version 3.
    692 		 * Shouldn't affect field VBIOS's V3 as define values are still
    693 		 *  same.
    694 		 * #define SS_MODE_V3_CENTRE_SPREAD_MASK                0x01
    695 		 * #define SS_MODE_V3_EXTERNAL_SS_MASK                  0x02
    696 
    697 		 * Old VBIOS defines:
    698 		 * #define ATOM_SS_CENTRE_SPREAD_MODE_MASK        0x00000001
    699 		 * #define ATOM_EXTERNAL_SS_MASK                  0x00000002
    700 		 */
    701 
    702 		if (SS_MODE_V3_EXTERNAL_SS_MASK & tbl[i].ucSpreadSpectrumMode)
    703 			ss_info->type.EXTERNAL = true;
    704 
    705 		if (SS_MODE_V3_CENTRE_SPREAD_MASK & tbl[i].ucSpreadSpectrumMode)
    706 			ss_info->type.CENTER_MODE = true;
    707 
    708 		/* Older VBIOS (in field) always provides SS percentage in 0.01%
    709 		 * units set Divider to 100 */
    710 		ss_info->spread_percentage_divider = 100;
    711 
    712 		/* #define SS_MODE_V3_PERCENTAGE_DIV_BY_1000_MASK 0x10 */
    713 		if (SS_MODE_V3_PERCENTAGE_DIV_BY_1000_MASK
    714 				& tbl[i].ucSpreadSpectrumMode)
    715 			ss_info->spread_percentage_divider = 1000;
    716 
    717 		ss_info->type.STEP_AND_DELAY_INFO = false;
    718 		/* convert [10KHz] into [KHz] */
    719 		ss_info->target_clock_range =
    720 				le32_to_cpu(tbl[i].ulTargetClockRange) * 10;
    721 		ss_info->spread_spectrum_percentage =
    722 				(uint32_t)le16_to_cpu(tbl[i].usSpreadSpectrumPercentage);
    723 		ss_info->spread_spectrum_range =
    724 				(uint32_t)(le16_to_cpu(tbl[i].usSpreadRateIn10Hz) * 10);
    725 
    726 		return BP_RESULT_OK;
    727 	}
    728 	return BP_RESULT_NORECORD;
    729 }
    730 
    731 static enum bp_result bios_parser_transmitter_control(
    732 	struct dc_bios *dcb,
    733 	struct bp_transmitter_control *cntl)
    734 {
    735 	struct bios_parser *bp = BP_FROM_DCB(dcb);
    736 
    737 	if (!bp->cmd_tbl.transmitter_control)
    738 		return BP_RESULT_FAILURE;
    739 
    740 	return bp->cmd_tbl.transmitter_control(bp, cntl);
    741 }
    742 
    743 static enum bp_result bios_parser_encoder_control(
    744 	struct dc_bios *dcb,
    745 	struct bp_encoder_control *cntl)
    746 {
    747 	struct bios_parser *bp = BP_FROM_DCB(dcb);
    748 
    749 	if (!bp->cmd_tbl.dig_encoder_control)
    750 		return BP_RESULT_FAILURE;
    751 
    752 	return bp->cmd_tbl.dig_encoder_control(bp, cntl);
    753 }
    754 
    755 static enum bp_result bios_parser_adjust_pixel_clock(
    756 	struct dc_bios *dcb,
    757 	struct bp_adjust_pixel_clock_parameters *bp_params)
    758 {
    759 	struct bios_parser *bp = BP_FROM_DCB(dcb);
    760 
    761 	if (!bp->cmd_tbl.adjust_display_pll)
    762 		return BP_RESULT_FAILURE;
    763 
    764 	return bp->cmd_tbl.adjust_display_pll(bp, bp_params);
    765 }
    766 
    767 static enum bp_result bios_parser_set_pixel_clock(
    768 	struct dc_bios *dcb,
    769 	struct bp_pixel_clock_parameters *bp_params)
    770 {
    771 	struct bios_parser *bp = BP_FROM_DCB(dcb);
    772 
    773 	if (!bp->cmd_tbl.set_pixel_clock)
    774 		return BP_RESULT_FAILURE;
    775 
    776 	return bp->cmd_tbl.set_pixel_clock(bp, bp_params);
    777 }
    778 
    779 static enum bp_result bios_parser_set_dce_clock(
    780 	struct dc_bios *dcb,
    781 	struct bp_set_dce_clock_parameters *bp_params)
    782 {
    783 	struct bios_parser *bp = BP_FROM_DCB(dcb);
    784 
    785 	if (!bp->cmd_tbl.set_dce_clock)
    786 		return BP_RESULT_FAILURE;
    787 
    788 	return bp->cmd_tbl.set_dce_clock(bp, bp_params);
    789 }
    790 
    791 static enum bp_result bios_parser_enable_spread_spectrum_on_ppll(
    792 	struct dc_bios *dcb,
    793 	struct bp_spread_spectrum_parameters *bp_params,
    794 	bool enable)
    795 {
    796 	struct bios_parser *bp = BP_FROM_DCB(dcb);
    797 
    798 	if (!bp->cmd_tbl.enable_spread_spectrum_on_ppll)
    799 		return BP_RESULT_FAILURE;
    800 
    801 	return bp->cmd_tbl.enable_spread_spectrum_on_ppll(
    802 			bp, bp_params, enable);
    803 
    804 }
    805 
    806 static enum bp_result bios_parser_program_crtc_timing(
    807 	struct dc_bios *dcb,
    808 	struct bp_hw_crtc_timing_parameters *bp_params)
    809 {
    810 	struct bios_parser *bp = BP_FROM_DCB(dcb);
    811 
    812 	if (!bp->cmd_tbl.set_crtc_timing)
    813 		return BP_RESULT_FAILURE;
    814 
    815 	return bp->cmd_tbl.set_crtc_timing(bp, bp_params);
    816 }
    817 
    818 static enum bp_result bios_parser_program_display_engine_pll(
    819 	struct dc_bios *dcb,
    820 	struct bp_pixel_clock_parameters *bp_params)
    821 {
    822 	struct bios_parser *bp = BP_FROM_DCB(dcb);
    823 
    824 	if (!bp->cmd_tbl.program_clock)
    825 		return BP_RESULT_FAILURE;
    826 
    827 	return bp->cmd_tbl.program_clock(bp, bp_params);
    828 
    829 }
    830 
    831 
    832 static enum bp_result bios_parser_enable_crtc(
    833 	struct dc_bios *dcb,
    834 	enum controller_id id,
    835 	bool enable)
    836 {
    837 	struct bios_parser *bp = BP_FROM_DCB(dcb);
    838 
    839 	if (!bp->cmd_tbl.enable_crtc)
    840 		return BP_RESULT_FAILURE;
    841 
    842 	return bp->cmd_tbl.enable_crtc(bp, id, enable);
    843 }
    844 
    845 static enum bp_result bios_parser_enable_disp_power_gating(
    846 	struct dc_bios *dcb,
    847 	enum controller_id controller_id,
    848 	enum bp_pipe_control_action action)
    849 {
    850 	struct bios_parser *bp = BP_FROM_DCB(dcb);
    851 
    852 	if (!bp->cmd_tbl.enable_disp_power_gating)
    853 		return BP_RESULT_FAILURE;
    854 
    855 	return bp->cmd_tbl.enable_disp_power_gating(bp, controller_id,
    856 		action);
    857 }
    858 
    859 static bool bios_parser_is_device_id_supported(
    860 	struct dc_bios *dcb,
    861 	struct device_id id)
    862 {
    863 	struct bios_parser *bp = BP_FROM_DCB(dcb);
    864 
    865 	uint32_t mask = get_support_mask_for_device_id(id);
    866 
    867 	return (le16_to_cpu(bp->object_info_tbl.v1_1->usDeviceSupport) & mask) != 0;
    868 }
    869 
    870 static ATOM_HPD_INT_RECORD *get_hpd_record(struct bios_parser *bp,
    871 	ATOM_OBJECT *object)
    872 {
    873 	ATOM_COMMON_RECORD_HEADER *header;
    874 	uint32_t offset;
    875 
    876 	if (!object) {
    877 		BREAK_TO_DEBUGGER(); /* Invalid object */
    878 		return NULL;
    879 	}
    880 
    881 	offset = le16_to_cpu(object->usRecordOffset)
    882 			+ bp->object_info_tbl_offset;
    883 
    884 	for (;;) {
    885 		header = GET_IMAGE(ATOM_COMMON_RECORD_HEADER, offset);
    886 
    887 		if (!header)
    888 			return NULL;
    889 
    890 		if (LAST_RECORD_TYPE == header->ucRecordType ||
    891 			!header->ucRecordSize)
    892 			break;
    893 
    894 		if (ATOM_HPD_INT_RECORD_TYPE == header->ucRecordType
    895 			&& sizeof(ATOM_HPD_INT_RECORD) <= header->ucRecordSize)
    896 			return (ATOM_HPD_INT_RECORD *) header;
    897 
    898 		offset += header->ucRecordSize;
    899 	}
    900 
    901 	return NULL;
    902 }
    903 
    904 static enum bp_result get_ss_info_from_ss_info_table(
    905 	struct bios_parser *bp,
    906 	uint32_t id,
    907 	struct spread_spectrum_info *ss_info);
    908 static enum bp_result get_ss_info_from_tbl(
    909 	struct bios_parser *bp,
    910 	uint32_t id,
    911 	struct spread_spectrum_info *ss_info);
    912 /**
    913  * bios_parser_get_spread_spectrum_info
    914  * Get spread spectrum information from the ASIC_InternalSS_Info(ver 2.1 or
    915  * ver 3.1) or SS_Info table from the VBIOS. Currently ASIC_InternalSS_Info
    916  * ver 2.1 can co-exist with SS_Info table. Expect ASIC_InternalSS_Info ver 3.1,
    917  * there is only one entry for each signal /ss id.  However, there is
    918  * no planning of supporting multiple spread Sprectum entry for EverGreen
    919  * @param [in] this
    920  * @param [in] signal, ASSignalType to be converted to info index
    921  * @param [in] index, number of entries that match the converted info index
    922  * @param [out] ss_info, sprectrum information structure,
    923  * @return Bios parser result code
    924  */
    925 static enum bp_result bios_parser_get_spread_spectrum_info(
    926 	struct dc_bios *dcb,
    927 	enum as_signal_type signal,
    928 	uint32_t index,
    929 	struct spread_spectrum_info *ss_info)
    930 {
    931 	struct bios_parser *bp = BP_FROM_DCB(dcb);
    932 	enum bp_result result = BP_RESULT_UNSUPPORTED;
    933 	uint32_t clk_id_ss = 0;
    934 	ATOM_COMMON_TABLE_HEADER *header;
    935 	struct atom_data_revision tbl_revision;
    936 
    937 	if (!ss_info) /* check for bad input */
    938 		return BP_RESULT_BADINPUT;
    939 	/* signal translation */
    940 	clk_id_ss = signal_to_ss_id(signal);
    941 
    942 	if (!DATA_TABLES(ASIC_InternalSS_Info))
    943 		if (!index)
    944 			return get_ss_info_from_ss_info_table(bp, clk_id_ss,
    945 				ss_info);
    946 
    947 	header = GET_IMAGE(ATOM_COMMON_TABLE_HEADER,
    948 		DATA_TABLES(ASIC_InternalSS_Info));
    949 	get_atom_data_table_revision(header, &tbl_revision);
    950 
    951 	switch (tbl_revision.major) {
    952 	case 2:
    953 		switch (tbl_revision.minor) {
    954 		case 1:
    955 			/* there can not be more then one entry for Internal
    956 			 * SS Info table version 2.1 */
    957 			if (!index)
    958 				return get_ss_info_from_tbl(bp, clk_id_ss,
    959 						ss_info);
    960 			break;
    961 		default:
    962 			break;
    963 		}
    964 		break;
    965 
    966 	case 3:
    967 		switch (tbl_revision.minor) {
    968 		case 1:
    969 			return get_ss_info_v3_1(bp, clk_id_ss, index, ss_info);
    970 		default:
    971 			break;
    972 		}
    973 		break;
    974 	default:
    975 		break;
    976 	}
    977 	/* there can not be more then one entry for SS Info table */
    978 	return result;
    979 }
    980 
    981 static enum bp_result get_ss_info_from_internal_ss_info_tbl_V2_1(
    982 	struct bios_parser *bp,
    983 	uint32_t id,
    984 	struct spread_spectrum_info *info);
    985 
    986 /**
    987  * get_ss_info_from_table
    988  * Get spread sprectrum information from the ASIC_InternalSS_Info Ver 2.1 or
    989  * SS_Info table from the VBIOS
    990  * There can not be more than 1 entry for  ASIC_InternalSS_Info Ver 2.1 or
    991  * SS_Info.
    992  *
    993  * @param this
    994  * @param id, spread sprectrum info index
    995  * @param pSSinfo, sprectrum information structure,
    996  * @return Bios parser result code
    997  */
    998 static enum bp_result get_ss_info_from_tbl(
    999 	struct bios_parser *bp,
   1000 	uint32_t id,
   1001 	struct spread_spectrum_info *ss_info)
   1002 {
   1003 	if (!ss_info) /* check for bad input, if ss_info is not NULL */
   1004 		return BP_RESULT_BADINPUT;
   1005 	/* for SS_Info table only support DP and LVDS */
   1006 	if (id == ASIC_INTERNAL_SS_ON_DP || id == ASIC_INTERNAL_SS_ON_LVDS)
   1007 		return get_ss_info_from_ss_info_table(bp, id, ss_info);
   1008 	else
   1009 		return get_ss_info_from_internal_ss_info_tbl_V2_1(bp, id,
   1010 			ss_info);
   1011 }
   1012 
   1013 /**
   1014  * get_ss_info_from_internal_ss_info_tbl_V2_1
   1015  * Get spread sprectrum information from the ASIC_InternalSS_Info table Ver 2.1
   1016  * from the VBIOS
   1017  * There will not be multiple entry for Ver 2.1
   1018  *
   1019  * @param id, spread sprectrum info index
   1020  * @param pSSinfo, sprectrum information structure,
   1021  * @return Bios parser result code
   1022  */
   1023 static enum bp_result get_ss_info_from_internal_ss_info_tbl_V2_1(
   1024 	struct bios_parser *bp,
   1025 	uint32_t id,
   1026 	struct spread_spectrum_info *info)
   1027 {
   1028 	enum bp_result result = BP_RESULT_UNSUPPORTED;
   1029 	ATOM_ASIC_INTERNAL_SS_INFO_V2 *header;
   1030 	ATOM_ASIC_SS_ASSIGNMENT_V2 *tbl;
   1031 	uint32_t tbl_size, i;
   1032 
   1033 	if (!DATA_TABLES(ASIC_InternalSS_Info))
   1034 		return result;
   1035 
   1036 	header = GET_IMAGE(ATOM_ASIC_INTERNAL_SS_INFO_V2,
   1037 		DATA_TABLES(ASIC_InternalSS_Info));
   1038 
   1039 	memset(info, 0, sizeof(struct spread_spectrum_info));
   1040 
   1041 	tbl_size = (le16_to_cpu(header->sHeader.usStructureSize)
   1042 			- sizeof(ATOM_COMMON_TABLE_HEADER))
   1043 					/ sizeof(ATOM_ASIC_SS_ASSIGNMENT_V2);
   1044 
   1045 	tbl = (ATOM_ASIC_SS_ASSIGNMENT_V2 *)
   1046 					&(header->asSpreadSpectrum[0]);
   1047 	for (i = 0; i < tbl_size; i++) {
   1048 		result = BP_RESULT_NORECORD;
   1049 
   1050 		if (tbl[i].ucClockIndication != (uint8_t)id)
   1051 			continue;
   1052 
   1053 		if (ATOM_EXTERNAL_SS_MASK
   1054 			& tbl[i].ucSpreadSpectrumMode) {
   1055 			info->type.EXTERNAL = true;
   1056 		}
   1057 		if (ATOM_SS_CENTRE_SPREAD_MODE_MASK
   1058 			& tbl[i].ucSpreadSpectrumMode) {
   1059 			info->type.CENTER_MODE = true;
   1060 		}
   1061 		info->type.STEP_AND_DELAY_INFO = false;
   1062 		/* convert [10KHz] into [KHz] */
   1063 		info->target_clock_range =
   1064 			le32_to_cpu(tbl[i].ulTargetClockRange) * 10;
   1065 		info->spread_spectrum_percentage =
   1066 			(uint32_t)le16_to_cpu(tbl[i].usSpreadSpectrumPercentage);
   1067 		info->spread_spectrum_range =
   1068 			(uint32_t)(le16_to_cpu(tbl[i].usSpreadRateIn10Hz) * 10);
   1069 		result = BP_RESULT_OK;
   1070 		break;
   1071 	}
   1072 
   1073 	return result;
   1074 
   1075 }
   1076 
   1077 /**
   1078  * get_ss_info_from_ss_info_table
   1079  * Get spread sprectrum information from the SS_Info table from the VBIOS
   1080  * if the pointer to info is NULL, indicate the caller what to know the number
   1081  * of entries that matches the id
   1082  * for, the SS_Info table, there should not be more than 1 entry match.
   1083  *
   1084  * @param [in] id, spread sprectrum id
   1085  * @param [out] pSSinfo, sprectrum information structure,
   1086  * @return Bios parser result code
   1087  */
   1088 static enum bp_result get_ss_info_from_ss_info_table(
   1089 	struct bios_parser *bp,
   1090 	uint32_t id,
   1091 	struct spread_spectrum_info *ss_info)
   1092 {
   1093 	enum bp_result result = BP_RESULT_UNSUPPORTED;
   1094 	ATOM_SPREAD_SPECTRUM_INFO *tbl;
   1095 	ATOM_COMMON_TABLE_HEADER *header;
   1096 	uint32_t table_size;
   1097 	uint32_t i;
   1098 	uint32_t id_local = SS_ID_UNKNOWN;
   1099 	struct atom_data_revision revision;
   1100 
   1101 	/* exist of the SS_Info table */
   1102 	/* check for bad input, pSSinfo can not be NULL */
   1103 	if (!DATA_TABLES(SS_Info) || !ss_info)
   1104 		return result;
   1105 
   1106 	header = GET_IMAGE(ATOM_COMMON_TABLE_HEADER, DATA_TABLES(SS_Info));
   1107 	get_atom_data_table_revision(header, &revision);
   1108 
   1109 	tbl = GET_IMAGE(ATOM_SPREAD_SPECTRUM_INFO, DATA_TABLES(SS_Info));
   1110 
   1111 	if (1 != revision.major || 2 > revision.minor)
   1112 		return result;
   1113 
   1114 	/* have to convert from Internal_SS format to SS_Info format */
   1115 	switch (id) {
   1116 	case ASIC_INTERNAL_SS_ON_DP:
   1117 		id_local = SS_ID_DP1;
   1118 		break;
   1119 	case ASIC_INTERNAL_SS_ON_LVDS:
   1120 	{
   1121 		struct embedded_panel_info panel_info;
   1122 
   1123 		if (bios_parser_get_embedded_panel_info(&bp->base, &panel_info)
   1124 				== BP_RESULT_OK)
   1125 			id_local = panel_info.ss_id;
   1126 		break;
   1127 	}
   1128 	default:
   1129 		break;
   1130 	}
   1131 
   1132 	if (id_local == SS_ID_UNKNOWN)
   1133 		return result;
   1134 
   1135 	table_size = (le16_to_cpu(tbl->sHeader.usStructureSize) -
   1136 			sizeof(ATOM_COMMON_TABLE_HEADER)) /
   1137 					sizeof(ATOM_SPREAD_SPECTRUM_ASSIGNMENT);
   1138 
   1139 	for (i = 0; i < table_size; i++) {
   1140 		if (id_local != (uint32_t)tbl->asSS_Info[i].ucSS_Id)
   1141 			continue;
   1142 
   1143 		memset(ss_info, 0, sizeof(struct spread_spectrum_info));
   1144 
   1145 		if (ATOM_EXTERNAL_SS_MASK &
   1146 				tbl->asSS_Info[i].ucSpreadSpectrumType)
   1147 			ss_info->type.EXTERNAL = true;
   1148 
   1149 		if (ATOM_SS_CENTRE_SPREAD_MODE_MASK &
   1150 				tbl->asSS_Info[i].ucSpreadSpectrumType)
   1151 			ss_info->type.CENTER_MODE = true;
   1152 
   1153 		ss_info->type.STEP_AND_DELAY_INFO = true;
   1154 		ss_info->spread_spectrum_percentage =
   1155 			(uint32_t)le16_to_cpu(tbl->asSS_Info[i].usSpreadSpectrumPercentage);
   1156 		ss_info->step_and_delay_info.step = tbl->asSS_Info[i].ucSS_Step;
   1157 		ss_info->step_and_delay_info.delay =
   1158 			tbl->asSS_Info[i].ucSS_Delay;
   1159 		ss_info->step_and_delay_info.recommended_ref_div =
   1160 			tbl->asSS_Info[i].ucRecommendedRef_Div;
   1161 		ss_info->spread_spectrum_range =
   1162 			(uint32_t)tbl->asSS_Info[i].ucSS_Range * 10000;
   1163 
   1164 		/* there will be only one entry for each display type in SS_info
   1165 		 * table */
   1166 		result = BP_RESULT_OK;
   1167 		break;
   1168 	}
   1169 
   1170 	return result;
   1171 }
   1172 static enum bp_result get_embedded_panel_info_v1_2(
   1173 	struct bios_parser *bp,
   1174 	struct embedded_panel_info *info);
   1175 static enum bp_result get_embedded_panel_info_v1_3(
   1176 	struct bios_parser *bp,
   1177 	struct embedded_panel_info *info);
   1178 
   1179 static enum bp_result bios_parser_get_embedded_panel_info(
   1180 	struct dc_bios *dcb,
   1181 	struct embedded_panel_info *info)
   1182 {
   1183 	struct bios_parser *bp = BP_FROM_DCB(dcb);
   1184 	ATOM_COMMON_TABLE_HEADER *hdr;
   1185 
   1186 	if (!DATA_TABLES(LCD_Info))
   1187 		return BP_RESULT_FAILURE;
   1188 
   1189 	hdr = GET_IMAGE(ATOM_COMMON_TABLE_HEADER, DATA_TABLES(LCD_Info));
   1190 
   1191 	if (!hdr)
   1192 		return BP_RESULT_BADBIOSTABLE;
   1193 
   1194 	switch (hdr->ucTableFormatRevision) {
   1195 	case 1:
   1196 		switch (hdr->ucTableContentRevision) {
   1197 		case 0:
   1198 		case 1:
   1199 		case 2:
   1200 			return get_embedded_panel_info_v1_2(bp, info);
   1201 		case 3:
   1202 			return get_embedded_panel_info_v1_3(bp, info);
   1203 		default:
   1204 			break;
   1205 		}
   1206 	default:
   1207 		break;
   1208 	}
   1209 
   1210 	return BP_RESULT_FAILURE;
   1211 }
   1212 
   1213 static enum bp_result get_embedded_panel_info_v1_2(
   1214 	struct bios_parser *bp,
   1215 	struct embedded_panel_info *info)
   1216 {
   1217 	ATOM_LVDS_INFO_V12 *lvds;
   1218 
   1219 	if (!info)
   1220 		return BP_RESULT_BADINPUT;
   1221 
   1222 	if (!DATA_TABLES(LVDS_Info))
   1223 		return BP_RESULT_UNSUPPORTED;
   1224 
   1225 	lvds =
   1226 		GET_IMAGE(ATOM_LVDS_INFO_V12, DATA_TABLES(LVDS_Info));
   1227 
   1228 	if (!lvds)
   1229 		return BP_RESULT_BADBIOSTABLE;
   1230 
   1231 	if (1 != lvds->sHeader.ucTableFormatRevision
   1232 		|| 2 > lvds->sHeader.ucTableContentRevision)
   1233 		return BP_RESULT_UNSUPPORTED;
   1234 
   1235 	memset(info, 0, sizeof(struct embedded_panel_info));
   1236 
   1237 	/* We need to convert from 10KHz units into KHz units*/
   1238 	info->lcd_timing.pixel_clk =
   1239 		le16_to_cpu(lvds->sLCDTiming.usPixClk) * 10;
   1240 	/* usHActive does not include borders, according to VBIOS team*/
   1241 	info->lcd_timing.horizontal_addressable =
   1242 		le16_to_cpu(lvds->sLCDTiming.usHActive);
   1243 	/* usHBlanking_Time includes borders, so we should really be subtracting
   1244 	 * borders duing this translation, but LVDS generally*/
   1245 	/* doesn't have borders, so we should be okay leaving this as is for
   1246 	 * now.  May need to revisit if we ever have LVDS with borders*/
   1247 	info->lcd_timing.horizontal_blanking_time =
   1248 			le16_to_cpu(lvds->sLCDTiming.usHBlanking_Time);
   1249 	/* usVActive does not include borders, according to VBIOS team*/
   1250 	info->lcd_timing.vertical_addressable =
   1251 			le16_to_cpu(lvds->sLCDTiming.usVActive);
   1252 	/* usVBlanking_Time includes borders, so we should really be subtracting
   1253 	 * borders duing this translation, but LVDS generally*/
   1254 	/* doesn't have borders, so we should be okay leaving this as is for
   1255 	 * now. May need to revisit if we ever have LVDS with borders*/
   1256 	info->lcd_timing.vertical_blanking_time =
   1257 		le16_to_cpu(lvds->sLCDTiming.usVBlanking_Time);
   1258 	info->lcd_timing.horizontal_sync_offset =
   1259 		le16_to_cpu(lvds->sLCDTiming.usHSyncOffset);
   1260 	info->lcd_timing.horizontal_sync_width =
   1261 		le16_to_cpu(lvds->sLCDTiming.usHSyncWidth);
   1262 	info->lcd_timing.vertical_sync_offset =
   1263 		le16_to_cpu(lvds->sLCDTiming.usVSyncOffset);
   1264 	info->lcd_timing.vertical_sync_width =
   1265 		le16_to_cpu(lvds->sLCDTiming.usVSyncWidth);
   1266 	info->lcd_timing.horizontal_border = lvds->sLCDTiming.ucHBorder;
   1267 	info->lcd_timing.vertical_border = lvds->sLCDTiming.ucVBorder;
   1268 	info->lcd_timing.misc_info.HORIZONTAL_CUT_OFF =
   1269 		lvds->sLCDTiming.susModeMiscInfo.sbfAccess.HorizontalCutOff;
   1270 	info->lcd_timing.misc_info.H_SYNC_POLARITY =
   1271 		~(uint32_t)
   1272 		lvds->sLCDTiming.susModeMiscInfo.sbfAccess.HSyncPolarity;
   1273 	info->lcd_timing.misc_info.V_SYNC_POLARITY =
   1274 		~(uint32_t)
   1275 		lvds->sLCDTiming.susModeMiscInfo.sbfAccess.VSyncPolarity;
   1276 	info->lcd_timing.misc_info.VERTICAL_CUT_OFF =
   1277 		lvds->sLCDTiming.susModeMiscInfo.sbfAccess.VerticalCutOff;
   1278 	info->lcd_timing.misc_info.H_REPLICATION_BY2 =
   1279 		lvds->sLCDTiming.susModeMiscInfo.sbfAccess.H_ReplicationBy2;
   1280 	info->lcd_timing.misc_info.V_REPLICATION_BY2 =
   1281 		lvds->sLCDTiming.susModeMiscInfo.sbfAccess.V_ReplicationBy2;
   1282 	info->lcd_timing.misc_info.COMPOSITE_SYNC =
   1283 		lvds->sLCDTiming.susModeMiscInfo.sbfAccess.CompositeSync;
   1284 	info->lcd_timing.misc_info.INTERLACE =
   1285 		lvds->sLCDTiming.susModeMiscInfo.sbfAccess.Interlace;
   1286 	info->lcd_timing.misc_info.DOUBLE_CLOCK =
   1287 		lvds->sLCDTiming.susModeMiscInfo.sbfAccess.DoubleClock;
   1288 	info->ss_id = lvds->ucSS_Id;
   1289 
   1290 	{
   1291 		uint8_t rr = le16_to_cpu(lvds->usSupportedRefreshRate);
   1292 		/* Get minimum supported refresh rate*/
   1293 		if (SUPPORTED_LCD_REFRESHRATE_30Hz & rr)
   1294 			info->supported_rr.REFRESH_RATE_30HZ = 1;
   1295 		else if (SUPPORTED_LCD_REFRESHRATE_40Hz & rr)
   1296 			info->supported_rr.REFRESH_RATE_40HZ = 1;
   1297 		else if (SUPPORTED_LCD_REFRESHRATE_48Hz & rr)
   1298 			info->supported_rr.REFRESH_RATE_48HZ = 1;
   1299 		else if (SUPPORTED_LCD_REFRESHRATE_50Hz & rr)
   1300 			info->supported_rr.REFRESH_RATE_50HZ = 1;
   1301 		else if (SUPPORTED_LCD_REFRESHRATE_60Hz & rr)
   1302 			info->supported_rr.REFRESH_RATE_60HZ = 1;
   1303 	}
   1304 
   1305 	/*Drr panel support can be reported by VBIOS*/
   1306 	if (LCDPANEL_CAP_DRR_SUPPORTED
   1307 			& lvds->ucLCDPanel_SpecialHandlingCap)
   1308 		info->drr_enabled = 1;
   1309 
   1310 	if (ATOM_PANEL_MISC_DUAL & lvds->ucLVDS_Misc)
   1311 		info->lcd_timing.misc_info.DOUBLE_CLOCK = true;
   1312 
   1313 	if (ATOM_PANEL_MISC_888RGB & lvds->ucLVDS_Misc)
   1314 		info->lcd_timing.misc_info.RGB888 = true;
   1315 
   1316 	info->lcd_timing.misc_info.GREY_LEVEL =
   1317 		(uint32_t) (ATOM_PANEL_MISC_GREY_LEVEL &
   1318 			lvds->ucLVDS_Misc) >> ATOM_PANEL_MISC_GREY_LEVEL_SHIFT;
   1319 
   1320 	if (ATOM_PANEL_MISC_SPATIAL & lvds->ucLVDS_Misc)
   1321 		info->lcd_timing.misc_info.SPATIAL = true;
   1322 
   1323 	if (ATOM_PANEL_MISC_TEMPORAL & lvds->ucLVDS_Misc)
   1324 		info->lcd_timing.misc_info.TEMPORAL = true;
   1325 
   1326 	if (ATOM_PANEL_MISC_API_ENABLED & lvds->ucLVDS_Misc)
   1327 		info->lcd_timing.misc_info.API_ENABLED = true;
   1328 
   1329 	return BP_RESULT_OK;
   1330 }
   1331 
   1332 static enum bp_result get_embedded_panel_info_v1_3(
   1333 	struct bios_parser *bp,
   1334 	struct embedded_panel_info *info)
   1335 {
   1336 	ATOM_LCD_INFO_V13 *lvds;
   1337 
   1338 	if (!info)
   1339 		return BP_RESULT_BADINPUT;
   1340 
   1341 	if (!DATA_TABLES(LCD_Info))
   1342 		return BP_RESULT_UNSUPPORTED;
   1343 
   1344 	lvds = GET_IMAGE(ATOM_LCD_INFO_V13, DATA_TABLES(LCD_Info));
   1345 
   1346 	if (!lvds)
   1347 		return BP_RESULT_BADBIOSTABLE;
   1348 
   1349 	if (!((1 == lvds->sHeader.ucTableFormatRevision)
   1350 			&& (3 <= lvds->sHeader.ucTableContentRevision)))
   1351 		return BP_RESULT_UNSUPPORTED;
   1352 
   1353 	memset(info, 0, sizeof(struct embedded_panel_info));
   1354 
   1355 	/* We need to convert from 10KHz units into KHz units */
   1356 	info->lcd_timing.pixel_clk =
   1357 			le16_to_cpu(lvds->sLCDTiming.usPixClk) * 10;
   1358 	/* usHActive does not include borders, according to VBIOS team */
   1359 	info->lcd_timing.horizontal_addressable =
   1360 			le16_to_cpu(lvds->sLCDTiming.usHActive);
   1361 	/* usHBlanking_Time includes borders, so we should really be subtracting
   1362 	 * borders duing this translation, but LVDS generally*/
   1363 	/* doesn't have borders, so we should be okay leaving this as is for
   1364 	 * now.  May need to revisit if we ever have LVDS with borders*/
   1365 	info->lcd_timing.horizontal_blanking_time =
   1366 		le16_to_cpu(lvds->sLCDTiming.usHBlanking_Time);
   1367 	/* usVActive does not include borders, according to VBIOS team*/
   1368 	info->lcd_timing.vertical_addressable =
   1369 		le16_to_cpu(lvds->sLCDTiming.usVActive);
   1370 	/* usVBlanking_Time includes borders, so we should really be subtracting
   1371 	 * borders duing this translation, but LVDS generally*/
   1372 	/* doesn't have borders, so we should be okay leaving this as is for
   1373 	 * now. May need to revisit if we ever have LVDS with borders*/
   1374 	info->lcd_timing.vertical_blanking_time =
   1375 		le16_to_cpu(lvds->sLCDTiming.usVBlanking_Time);
   1376 	info->lcd_timing.horizontal_sync_offset =
   1377 		le16_to_cpu(lvds->sLCDTiming.usHSyncOffset);
   1378 	info->lcd_timing.horizontal_sync_width =
   1379 		le16_to_cpu(lvds->sLCDTiming.usHSyncWidth);
   1380 	info->lcd_timing.vertical_sync_offset =
   1381 		le16_to_cpu(lvds->sLCDTiming.usVSyncOffset);
   1382 	info->lcd_timing.vertical_sync_width =
   1383 		le16_to_cpu(lvds->sLCDTiming.usVSyncWidth);
   1384 	info->lcd_timing.horizontal_border = lvds->sLCDTiming.ucHBorder;
   1385 	info->lcd_timing.vertical_border = lvds->sLCDTiming.ucVBorder;
   1386 	info->lcd_timing.misc_info.HORIZONTAL_CUT_OFF =
   1387 		lvds->sLCDTiming.susModeMiscInfo.sbfAccess.HorizontalCutOff;
   1388 	info->lcd_timing.misc_info.H_SYNC_POLARITY =
   1389 		~(uint32_t)
   1390 		lvds->sLCDTiming.susModeMiscInfo.sbfAccess.HSyncPolarity;
   1391 	info->lcd_timing.misc_info.V_SYNC_POLARITY =
   1392 		~(uint32_t)
   1393 		lvds->sLCDTiming.susModeMiscInfo.sbfAccess.VSyncPolarity;
   1394 	info->lcd_timing.misc_info.VERTICAL_CUT_OFF =
   1395 		lvds->sLCDTiming.susModeMiscInfo.sbfAccess.VerticalCutOff;
   1396 	info->lcd_timing.misc_info.H_REPLICATION_BY2 =
   1397 		lvds->sLCDTiming.susModeMiscInfo.sbfAccess.H_ReplicationBy2;
   1398 	info->lcd_timing.misc_info.V_REPLICATION_BY2 =
   1399 		lvds->sLCDTiming.susModeMiscInfo.sbfAccess.V_ReplicationBy2;
   1400 	info->lcd_timing.misc_info.COMPOSITE_SYNC =
   1401 		lvds->sLCDTiming.susModeMiscInfo.sbfAccess.CompositeSync;
   1402 	info->lcd_timing.misc_info.INTERLACE =
   1403 		lvds->sLCDTiming.susModeMiscInfo.sbfAccess.Interlace;
   1404 	info->lcd_timing.misc_info.DOUBLE_CLOCK =
   1405 		lvds->sLCDTiming.susModeMiscInfo.sbfAccess.DoubleClock;
   1406 	info->ss_id = lvds->ucSS_Id;
   1407 
   1408 	/* Drr panel support can be reported by VBIOS*/
   1409 	if (LCDPANEL_CAP_V13_DRR_SUPPORTED
   1410 			& lvds->ucLCDPanel_SpecialHandlingCap)
   1411 		info->drr_enabled = 1;
   1412 
   1413 	/* Get supported refresh rate*/
   1414 	if (info->drr_enabled == 1) {
   1415 		uint8_t min_rr =
   1416 				lvds->sRefreshRateSupport.ucMinRefreshRateForDRR;
   1417 		uint8_t rr = lvds->sRefreshRateSupport.ucSupportedRefreshRate;
   1418 
   1419 		if (min_rr != 0) {
   1420 			if (SUPPORTED_LCD_REFRESHRATE_30Hz & min_rr)
   1421 				info->supported_rr.REFRESH_RATE_30HZ = 1;
   1422 			else if (SUPPORTED_LCD_REFRESHRATE_40Hz & min_rr)
   1423 				info->supported_rr.REFRESH_RATE_40HZ = 1;
   1424 			else if (SUPPORTED_LCD_REFRESHRATE_48Hz & min_rr)
   1425 				info->supported_rr.REFRESH_RATE_48HZ = 1;
   1426 			else if (SUPPORTED_LCD_REFRESHRATE_50Hz & min_rr)
   1427 				info->supported_rr.REFRESH_RATE_50HZ = 1;
   1428 			else if (SUPPORTED_LCD_REFRESHRATE_60Hz & min_rr)
   1429 				info->supported_rr.REFRESH_RATE_60HZ = 1;
   1430 		} else {
   1431 			if (SUPPORTED_LCD_REFRESHRATE_30Hz & rr)
   1432 				info->supported_rr.REFRESH_RATE_30HZ = 1;
   1433 			else if (SUPPORTED_LCD_REFRESHRATE_40Hz & rr)
   1434 				info->supported_rr.REFRESH_RATE_40HZ = 1;
   1435 			else if (SUPPORTED_LCD_REFRESHRATE_48Hz & rr)
   1436 				info->supported_rr.REFRESH_RATE_48HZ = 1;
   1437 			else if (SUPPORTED_LCD_REFRESHRATE_50Hz & rr)
   1438 				info->supported_rr.REFRESH_RATE_50HZ = 1;
   1439 			else if (SUPPORTED_LCD_REFRESHRATE_60Hz & rr)
   1440 				info->supported_rr.REFRESH_RATE_60HZ = 1;
   1441 		}
   1442 	}
   1443 
   1444 	if (ATOM_PANEL_MISC_V13_DUAL & lvds->ucLCD_Misc)
   1445 		info->lcd_timing.misc_info.DOUBLE_CLOCK = true;
   1446 
   1447 	if (ATOM_PANEL_MISC_V13_8BIT_PER_COLOR & lvds->ucLCD_Misc)
   1448 		info->lcd_timing.misc_info.RGB888 = true;
   1449 
   1450 	info->lcd_timing.misc_info.GREY_LEVEL =
   1451 			(uint32_t) (ATOM_PANEL_MISC_V13_GREY_LEVEL &
   1452 				lvds->ucLCD_Misc) >> ATOM_PANEL_MISC_V13_GREY_LEVEL_SHIFT;
   1453 
   1454 	return BP_RESULT_OK;
   1455 }
   1456 
   1457 /**
   1458  * bios_parser_get_encoder_cap_info
   1459  *
   1460  * @brief
   1461  *  Get encoder capability information of input object id
   1462  *
   1463  * @param object_id, Object id
   1464  * @param object_id, encoder cap information structure
   1465  *
   1466  * @return Bios parser result code
   1467  *
   1468  */
   1469 static enum bp_result bios_parser_get_encoder_cap_info(
   1470 	struct dc_bios *dcb,
   1471 	struct graphics_object_id object_id,
   1472 	struct bp_encoder_cap_info *info)
   1473 {
   1474 	struct bios_parser *bp = BP_FROM_DCB(dcb);
   1475 	ATOM_OBJECT *object;
   1476 	ATOM_ENCODER_CAP_RECORD_V2 *record = NULL;
   1477 
   1478 	if (!info)
   1479 		return BP_RESULT_BADINPUT;
   1480 
   1481 	object = get_bios_object(bp, object_id);
   1482 
   1483 	if (!object)
   1484 		return BP_RESULT_BADINPUT;
   1485 
   1486 	record = get_encoder_cap_record(bp, object);
   1487 	if (!record)
   1488 		return BP_RESULT_NORECORD;
   1489 
   1490 	info->DP_HBR2_EN = record->usHBR2En;
   1491 	info->DP_HBR3_EN = record->usHBR3En;
   1492 	info->HDMI_6GB_EN = record->usHDMI6GEn;
   1493 	return BP_RESULT_OK;
   1494 }
   1495 
   1496 /**
   1497  * get_encoder_cap_record
   1498  *
   1499  * @brief
   1500  *  Get encoder cap record for the object
   1501  *
   1502  * @param object, ATOM object
   1503  *
   1504  * @return atom encoder cap record
   1505  *
   1506  * @note
   1507  *  search all records to find the ATOM_ENCODER_CAP_RECORD_V2 record
   1508  */
   1509 static ATOM_ENCODER_CAP_RECORD_V2 *get_encoder_cap_record(
   1510 	struct bios_parser *bp,
   1511 	ATOM_OBJECT *object)
   1512 {
   1513 	ATOM_COMMON_RECORD_HEADER *header;
   1514 	uint32_t offset;
   1515 
   1516 	if (!object) {
   1517 		BREAK_TO_DEBUGGER(); /* Invalid object */
   1518 		return NULL;
   1519 	}
   1520 
   1521 	offset = le16_to_cpu(object->usRecordOffset)
   1522 					+ bp->object_info_tbl_offset;
   1523 
   1524 	for (;;) {
   1525 		header = GET_IMAGE(ATOM_COMMON_RECORD_HEADER, offset);
   1526 
   1527 		if (!header)
   1528 			return NULL;
   1529 
   1530 		offset += header->ucRecordSize;
   1531 
   1532 		if (LAST_RECORD_TYPE == header->ucRecordType ||
   1533 				!header->ucRecordSize)
   1534 			break;
   1535 
   1536 		if (ATOM_ENCODER_CAP_RECORD_TYPE != header->ucRecordType)
   1537 			continue;
   1538 
   1539 		if (sizeof(ATOM_ENCODER_CAP_RECORD_V2) <= header->ucRecordSize)
   1540 			return (ATOM_ENCODER_CAP_RECORD_V2 *)header;
   1541 	}
   1542 
   1543 	return NULL;
   1544 }
   1545 
   1546 static uint32_t get_ss_entry_number(
   1547 	struct bios_parser *bp,
   1548 	uint32_t id);
   1549 static uint32_t get_ss_entry_number_from_internal_ss_info_tbl_v2_1(
   1550 	struct bios_parser *bp,
   1551 	uint32_t id);
   1552 static uint32_t get_ss_entry_number_from_internal_ss_info_tbl_V3_1(
   1553 	struct bios_parser *bp,
   1554 	uint32_t id);
   1555 static uint32_t get_ss_entry_number_from_ss_info_tbl(
   1556 	struct bios_parser *bp,
   1557 	uint32_t id);
   1558 
   1559 /**
   1560  * BiosParserObject::GetNumberofSpreadSpectrumEntry
   1561  * Get Number of SpreadSpectrum Entry from the ASIC_InternalSS_Info table from
   1562  * the VBIOS that match the SSid (to be converted from signal)
   1563  *
   1564  * @param[in] signal, ASSignalType to be converted to SSid
   1565  * @return number of SS Entry that match the signal
   1566  */
   1567 static uint32_t bios_parser_get_ss_entry_number(
   1568 	struct dc_bios *dcb,
   1569 	enum as_signal_type signal)
   1570 {
   1571 	struct bios_parser *bp = BP_FROM_DCB(dcb);
   1572 	uint32_t ss_id = 0;
   1573 	ATOM_COMMON_TABLE_HEADER *header;
   1574 	struct atom_data_revision revision;
   1575 
   1576 	ss_id = signal_to_ss_id(signal);
   1577 
   1578 	if (!DATA_TABLES(ASIC_InternalSS_Info))
   1579 		return get_ss_entry_number_from_ss_info_tbl(bp, ss_id);
   1580 
   1581 	header = GET_IMAGE(ATOM_COMMON_TABLE_HEADER,
   1582 			DATA_TABLES(ASIC_InternalSS_Info));
   1583 	get_atom_data_table_revision(header, &revision);
   1584 
   1585 	switch (revision.major) {
   1586 	case 2:
   1587 		switch (revision.minor) {
   1588 		case 1:
   1589 			return get_ss_entry_number(bp, ss_id);
   1590 		default:
   1591 			break;
   1592 		}
   1593 		break;
   1594 	case 3:
   1595 		switch (revision.minor) {
   1596 		case 1:
   1597 			return
   1598 				get_ss_entry_number_from_internal_ss_info_tbl_V3_1(
   1599 						bp, ss_id);
   1600 		default:
   1601 			break;
   1602 		}
   1603 		break;
   1604 	default:
   1605 		break;
   1606 	}
   1607 
   1608 	return 0;
   1609 }
   1610 
   1611 /**
   1612  * get_ss_entry_number_from_ss_info_tbl
   1613  * Get Number of spread spectrum entry from the SS_Info table from the VBIOS.
   1614  *
   1615  * @note There can only be one entry for each id for SS_Info Table
   1616  *
   1617  * @param [in] id, spread spectrum id
   1618  * @return number of SS Entry that match the id
   1619  */
   1620 static uint32_t get_ss_entry_number_from_ss_info_tbl(
   1621 	struct bios_parser *bp,
   1622 	uint32_t id)
   1623 {
   1624 	ATOM_SPREAD_SPECTRUM_INFO *tbl;
   1625 	ATOM_COMMON_TABLE_HEADER *header;
   1626 	uint32_t table_size;
   1627 	uint32_t i;
   1628 	uint32_t number = 0;
   1629 	uint32_t id_local = SS_ID_UNKNOWN;
   1630 	struct atom_data_revision revision;
   1631 
   1632 	/* SS_Info table exist */
   1633 	if (!DATA_TABLES(SS_Info))
   1634 		return number;
   1635 
   1636 	header = GET_IMAGE(ATOM_COMMON_TABLE_HEADER,
   1637 			DATA_TABLES(SS_Info));
   1638 	get_atom_data_table_revision(header, &revision);
   1639 
   1640 	tbl = GET_IMAGE(ATOM_SPREAD_SPECTRUM_INFO,
   1641 			DATA_TABLES(SS_Info));
   1642 
   1643 	if (1 != revision.major || 2 > revision.minor)
   1644 		return number;
   1645 
   1646 	/* have to convert from Internal_SS format to SS_Info format */
   1647 	switch (id) {
   1648 	case ASIC_INTERNAL_SS_ON_DP:
   1649 		id_local = SS_ID_DP1;
   1650 		break;
   1651 	case ASIC_INTERNAL_SS_ON_LVDS: {
   1652 		struct embedded_panel_info panel_info;
   1653 
   1654 		if (bios_parser_get_embedded_panel_info(&bp->base, &panel_info)
   1655 				== BP_RESULT_OK)
   1656 			id_local = panel_info.ss_id;
   1657 		break;
   1658 	}
   1659 	default:
   1660 		break;
   1661 	}
   1662 
   1663 	if (id_local == SS_ID_UNKNOWN)
   1664 		return number;
   1665 
   1666 	table_size = (le16_to_cpu(tbl->sHeader.usStructureSize) -
   1667 			sizeof(ATOM_COMMON_TABLE_HEADER)) /
   1668 					sizeof(ATOM_SPREAD_SPECTRUM_ASSIGNMENT);
   1669 
   1670 	for (i = 0; i < table_size; i++)
   1671 		if (id_local == (uint32_t)tbl->asSS_Info[i].ucSS_Id) {
   1672 			number = 1;
   1673 			break;
   1674 		}
   1675 
   1676 	return number;
   1677 }
   1678 
   1679 /**
   1680  * get_ss_entry_number
   1681  * Get spread sprectrum information from the ASIC_InternalSS_Info Ver 2.1 or
   1682  * SS_Info table from the VBIOS
   1683  * There can not be more than 1 entry for  ASIC_InternalSS_Info Ver 2.1 or
   1684  * SS_Info.
   1685  *
   1686  * @param id, spread sprectrum info index
   1687  * @return Bios parser result code
   1688  */
   1689 static uint32_t get_ss_entry_number(struct bios_parser *bp, uint32_t id)
   1690 {
   1691 	if (id == ASIC_INTERNAL_SS_ON_DP || id == ASIC_INTERNAL_SS_ON_LVDS)
   1692 		return get_ss_entry_number_from_ss_info_tbl(bp, id);
   1693 
   1694 	return get_ss_entry_number_from_internal_ss_info_tbl_v2_1(bp, id);
   1695 }
   1696 
   1697 /**
   1698  * get_ss_entry_number_from_internal_ss_info_tbl_v2_1
   1699  * Get NUmber of spread sprectrum entry from the ASIC_InternalSS_Info table
   1700  * Ver 2.1 from the VBIOS
   1701  * There will not be multiple entry for Ver 2.1
   1702  *
   1703  * @param id, spread sprectrum info index
   1704  * @return number of SS Entry that match the id
   1705  */
   1706 static uint32_t get_ss_entry_number_from_internal_ss_info_tbl_v2_1(
   1707 	struct bios_parser *bp,
   1708 	uint32_t id)
   1709 {
   1710 	ATOM_ASIC_INTERNAL_SS_INFO_V2 *header_include;
   1711 	ATOM_ASIC_SS_ASSIGNMENT_V2 *tbl;
   1712 	uint32_t size;
   1713 	uint32_t i;
   1714 
   1715 	if (!DATA_TABLES(ASIC_InternalSS_Info))
   1716 		return 0;
   1717 
   1718 	header_include = GET_IMAGE(ATOM_ASIC_INTERNAL_SS_INFO_V2,
   1719 			DATA_TABLES(ASIC_InternalSS_Info));
   1720 
   1721 	size = (le16_to_cpu(header_include->sHeader.usStructureSize)
   1722 			- sizeof(ATOM_COMMON_TABLE_HEADER))
   1723 						/ sizeof(ATOM_ASIC_SS_ASSIGNMENT_V2);
   1724 
   1725 	tbl = (ATOM_ASIC_SS_ASSIGNMENT_V2 *)
   1726 				&header_include->asSpreadSpectrum[0];
   1727 	for (i = 0; i < size; i++)
   1728 		if (tbl[i].ucClockIndication == (uint8_t)id)
   1729 			return 1;
   1730 
   1731 	return 0;
   1732 }
   1733 /**
   1734  * get_ss_entry_number_from_internal_ss_info_table_V3_1
   1735  * Get Number of SpreadSpectrum Entry from the ASIC_InternalSS_Info table of
   1736  * the VBIOS that matches id
   1737  *
   1738  * @param[in]  id, spread sprectrum id
   1739  * @return number of SS Entry that match the id
   1740  */
   1741 static uint32_t get_ss_entry_number_from_internal_ss_info_tbl_V3_1(
   1742 	struct bios_parser *bp,
   1743 	uint32_t id)
   1744 {
   1745 	uint32_t number = 0;
   1746 	ATOM_ASIC_INTERNAL_SS_INFO_V3 *header_include;
   1747 	ATOM_ASIC_SS_ASSIGNMENT_V3 *tbl;
   1748 	uint32_t size;
   1749 	uint32_t i;
   1750 
   1751 	if (!DATA_TABLES(ASIC_InternalSS_Info))
   1752 		return number;
   1753 
   1754 	header_include = GET_IMAGE(ATOM_ASIC_INTERNAL_SS_INFO_V3,
   1755 			DATA_TABLES(ASIC_InternalSS_Info));
   1756 	size = (le16_to_cpu(header_include->sHeader.usStructureSize) -
   1757 			sizeof(ATOM_COMMON_TABLE_HEADER)) /
   1758 					sizeof(ATOM_ASIC_SS_ASSIGNMENT_V3);
   1759 
   1760 	tbl = (ATOM_ASIC_SS_ASSIGNMENT_V3 *)
   1761 				&header_include->asSpreadSpectrum[0];
   1762 
   1763 	for (i = 0; i < size; i++)
   1764 		if (tbl[i].ucClockIndication == (uint8_t)id)
   1765 			number++;
   1766 
   1767 	return number;
   1768 }
   1769 
   1770 /**
   1771  * bios_parser_get_gpio_pin_info
   1772  * Get GpioPin information of input gpio id
   1773  *
   1774  * @param gpio_id, GPIO ID
   1775  * @param info, GpioPin information structure
   1776  * @return Bios parser result code
   1777  * @note
   1778  *  to get the GPIO PIN INFO, we need:
   1779  *  1. get the GPIO_ID from other object table, see GetHPDInfo()
   1780  *  2. in DATA_TABLE.GPIO_Pin_LUT, search all records, to get the registerA
   1781  *  offset/mask
   1782  */
   1783 static enum bp_result bios_parser_get_gpio_pin_info(
   1784 	struct dc_bios *dcb,
   1785 	uint32_t gpio_id,
   1786 	struct gpio_pin_info *info)
   1787 {
   1788 	struct bios_parser *bp = BP_FROM_DCB(dcb);
   1789 	ATOM_GPIO_PIN_LUT *header;
   1790 	uint32_t count = 0;
   1791 	uint32_t i = 0;
   1792 
   1793 	if (!DATA_TABLES(GPIO_Pin_LUT))
   1794 		return BP_RESULT_BADBIOSTABLE;
   1795 
   1796 	header = GET_IMAGE(ATOM_GPIO_PIN_LUT, DATA_TABLES(GPIO_Pin_LUT));
   1797 	if (!header)
   1798 		return BP_RESULT_BADBIOSTABLE;
   1799 
   1800 	if (sizeof(ATOM_COMMON_TABLE_HEADER) + sizeof(ATOM_GPIO_PIN_LUT)
   1801 			> le16_to_cpu(header->sHeader.usStructureSize))
   1802 		return BP_RESULT_BADBIOSTABLE;
   1803 
   1804 	if (1 != header->sHeader.ucTableContentRevision)
   1805 		return BP_RESULT_UNSUPPORTED;
   1806 
   1807 	count = (le16_to_cpu(header->sHeader.usStructureSize)
   1808 			- sizeof(ATOM_COMMON_TABLE_HEADER))
   1809 				/ sizeof(ATOM_GPIO_PIN_ASSIGNMENT);
   1810 	for (i = 0; i < count; ++i) {
   1811 		if (header->asGPIO_Pin[i].ucGPIO_ID != gpio_id)
   1812 			continue;
   1813 
   1814 		info->offset =
   1815 			(uint32_t) le16_to_cpu(header->asGPIO_Pin[i].usGpioPin_AIndex);
   1816 		info->offset_y = info->offset + 2;
   1817 		info->offset_en = info->offset + 1;
   1818 		info->offset_mask = info->offset - 1;
   1819 
   1820 		info->mask = (uint32_t) (1 <<
   1821 			header->asGPIO_Pin[i].ucGpioPinBitShift);
   1822 		info->mask_y = info->mask + 2;
   1823 		info->mask_en = info->mask + 1;
   1824 		info->mask_mask = info->mask - 1;
   1825 
   1826 		return BP_RESULT_OK;
   1827 	}
   1828 
   1829 	return BP_RESULT_NORECORD;
   1830 }
   1831 
   1832 static enum bp_result get_gpio_i2c_info(struct bios_parser *bp,
   1833 	ATOM_I2C_RECORD *record,
   1834 	struct graphics_object_i2c_info *info)
   1835 {
   1836 	ATOM_GPIO_I2C_INFO *header;
   1837 	uint32_t count = 0;
   1838 
   1839 	if (!info)
   1840 		return BP_RESULT_BADINPUT;
   1841 
   1842 	/* get the GPIO_I2C info */
   1843 	if (!DATA_TABLES(GPIO_I2C_Info))
   1844 		return BP_RESULT_BADBIOSTABLE;
   1845 
   1846 	header = GET_IMAGE(ATOM_GPIO_I2C_INFO, DATA_TABLES(GPIO_I2C_Info));
   1847 	if (!header)
   1848 		return BP_RESULT_BADBIOSTABLE;
   1849 
   1850 	if (sizeof(ATOM_COMMON_TABLE_HEADER) + sizeof(ATOM_GPIO_I2C_ASSIGMENT)
   1851 			> le16_to_cpu(header->sHeader.usStructureSize))
   1852 		return BP_RESULT_BADBIOSTABLE;
   1853 
   1854 	if (1 != header->sHeader.ucTableContentRevision)
   1855 		return BP_RESULT_UNSUPPORTED;
   1856 
   1857 	/* get data count */
   1858 	count = (le16_to_cpu(header->sHeader.usStructureSize)
   1859 			- sizeof(ATOM_COMMON_TABLE_HEADER))
   1860 				/ sizeof(ATOM_GPIO_I2C_ASSIGMENT);
   1861 	if (count < record->sucI2cId.bfI2C_LineMux)
   1862 		return BP_RESULT_BADBIOSTABLE;
   1863 
   1864 	/* get the GPIO_I2C_INFO */
   1865 	info->i2c_hw_assist = record->sucI2cId.bfHW_Capable;
   1866 	info->i2c_line = record->sucI2cId.bfI2C_LineMux;
   1867 	info->i2c_engine_id = record->sucI2cId.bfHW_EngineID;
   1868 	info->i2c_slave_address = record->ucI2CAddr;
   1869 
   1870 	info->gpio_info.clk_mask_register_index =
   1871 			le16_to_cpu(header->asGPIO_Info[info->i2c_line].usClkMaskRegisterIndex);
   1872 	info->gpio_info.clk_en_register_index =
   1873 			le16_to_cpu(header->asGPIO_Info[info->i2c_line].usClkEnRegisterIndex);
   1874 	info->gpio_info.clk_y_register_index =
   1875 			le16_to_cpu(header->asGPIO_Info[info->i2c_line].usClkY_RegisterIndex);
   1876 	info->gpio_info.clk_a_register_index =
   1877 			le16_to_cpu(header->asGPIO_Info[info->i2c_line].usClkA_RegisterIndex);
   1878 	info->gpio_info.data_mask_register_index =
   1879 			le16_to_cpu(header->asGPIO_Info[info->i2c_line].usDataMaskRegisterIndex);
   1880 	info->gpio_info.data_en_register_index =
   1881 			le16_to_cpu(header->asGPIO_Info[info->i2c_line].usDataEnRegisterIndex);
   1882 	info->gpio_info.data_y_register_index =
   1883 			le16_to_cpu(header->asGPIO_Info[info->i2c_line].usDataY_RegisterIndex);
   1884 	info->gpio_info.data_a_register_index =
   1885 			le16_to_cpu(header->asGPIO_Info[info->i2c_line].usDataA_RegisterIndex);
   1886 
   1887 	info->gpio_info.clk_mask_shift =
   1888 			header->asGPIO_Info[info->i2c_line].ucClkMaskShift;
   1889 	info->gpio_info.clk_en_shift =
   1890 			header->asGPIO_Info[info->i2c_line].ucClkEnShift;
   1891 	info->gpio_info.clk_y_shift =
   1892 			header->asGPIO_Info[info->i2c_line].ucClkY_Shift;
   1893 	info->gpio_info.clk_a_shift =
   1894 			header->asGPIO_Info[info->i2c_line].ucClkA_Shift;
   1895 	info->gpio_info.data_mask_shift =
   1896 			header->asGPIO_Info[info->i2c_line].ucDataMaskShift;
   1897 	info->gpio_info.data_en_shift =
   1898 			header->asGPIO_Info[info->i2c_line].ucDataEnShift;
   1899 	info->gpio_info.data_y_shift =
   1900 			header->asGPIO_Info[info->i2c_line].ucDataY_Shift;
   1901 	info->gpio_info.data_a_shift =
   1902 			header->asGPIO_Info[info->i2c_line].ucDataA_Shift;
   1903 
   1904 	return BP_RESULT_OK;
   1905 }
   1906 
   1907 static bool dal_graphics_object_id_is_valid(struct graphics_object_id id)
   1908 {
   1909 	bool rc = true;
   1910 
   1911 	switch (id.type) {
   1912 	case OBJECT_TYPE_UNKNOWN:
   1913 		rc = false;
   1914 		break;
   1915 	case OBJECT_TYPE_GPU:
   1916 	case OBJECT_TYPE_ENGINE:
   1917 		/* do NOT check for id.id == 0 */
   1918 		if (id.enum_id == ENUM_ID_UNKNOWN)
   1919 			rc = false;
   1920 		break;
   1921 	default:
   1922 		if (id.id == 0 || id.enum_id == ENUM_ID_UNKNOWN)
   1923 			rc = false;
   1924 		break;
   1925 	}
   1926 
   1927 	return rc;
   1928 }
   1929 
   1930 static bool dal_graphics_object_id_is_equal(
   1931 	struct graphics_object_id id1,
   1932 	struct graphics_object_id id2)
   1933 {
   1934 	if (false == dal_graphics_object_id_is_valid(id1)) {
   1935 		dm_output_to_console(
   1936 		"%s: Warning: comparing invalid object 'id1'!\n", __func__);
   1937 		return false;
   1938 	}
   1939 
   1940 	if (false == dal_graphics_object_id_is_valid(id2)) {
   1941 		dm_output_to_console(
   1942 		"%s: Warning: comparing invalid object 'id2'!\n", __func__);
   1943 		return false;
   1944 	}
   1945 
   1946 	if (id1.id == id2.id && id1.enum_id == id2.enum_id
   1947 		&& id1.type == id2.type)
   1948 		return true;
   1949 
   1950 	return false;
   1951 }
   1952 
   1953 static ATOM_OBJECT *get_bios_object(struct bios_parser *bp,
   1954 	struct graphics_object_id id)
   1955 {
   1956 	uint32_t offset;
   1957 	ATOM_OBJECT_TABLE *tbl;
   1958 	uint32_t i;
   1959 
   1960 	switch (id.type) {
   1961 	case OBJECT_TYPE_ENCODER:
   1962 		offset = le16_to_cpu(bp->object_info_tbl.v1_1->usEncoderObjectTableOffset);
   1963 		break;
   1964 
   1965 	case OBJECT_TYPE_CONNECTOR:
   1966 		offset = le16_to_cpu(bp->object_info_tbl.v1_1->usConnectorObjectTableOffset);
   1967 		break;
   1968 
   1969 	case OBJECT_TYPE_ROUTER:
   1970 		offset = le16_to_cpu(bp->object_info_tbl.v1_1->usRouterObjectTableOffset);
   1971 		break;
   1972 
   1973 	case OBJECT_TYPE_GENERIC:
   1974 		if (bp->object_info_tbl.revision.minor < 3)
   1975 			return NULL;
   1976 		offset = le16_to_cpu(bp->object_info_tbl.v1_3->usMiscObjectTableOffset);
   1977 		break;
   1978 
   1979 	default:
   1980 		return NULL;
   1981 	}
   1982 
   1983 	offset += bp->object_info_tbl_offset;
   1984 
   1985 	tbl = GET_IMAGE(ATOM_OBJECT_TABLE, offset);
   1986 	if (!tbl)
   1987 		return NULL;
   1988 
   1989 	for (i = 0; i < tbl->ucNumberOfObjects; i++)
   1990 		if (dal_graphics_object_id_is_equal(id,
   1991 				object_id_from_bios_object_id(
   1992 						le16_to_cpu(tbl->asObjects[i].usObjectID))))
   1993 			return &tbl->asObjects[i];
   1994 
   1995 	return NULL;
   1996 }
   1997 
   1998 static uint32_t get_src_obj_list(struct bios_parser *bp, ATOM_OBJECT *object,
   1999 	uint16_t **id_list)
   2000 {
   2001 	uint32_t offset;
   2002 	uint8_t *number;
   2003 
   2004 	if (!object) {
   2005 		BREAK_TO_DEBUGGER(); /* Invalid object id */
   2006 		return 0;
   2007 	}
   2008 
   2009 	offset = le16_to_cpu(object->usSrcDstTableOffset)
   2010 					+ bp->object_info_tbl_offset;
   2011 
   2012 	number = GET_IMAGE(uint8_t, offset);
   2013 	if (!number)
   2014 		return 0;
   2015 
   2016 	offset += sizeof(uint8_t);
   2017 	*id_list = (uint16_t *)bios_get_image(&bp->base, offset, *number * sizeof(uint16_t));
   2018 
   2019 	if (!*id_list)
   2020 		return 0;
   2021 
   2022 	return *number;
   2023 }
   2024 
   2025 static struct device_id device_type_from_device_id(uint16_t device_id)
   2026 {
   2027 
   2028 	struct device_id result_device_id = {0};
   2029 
   2030 	switch (device_id) {
   2031 	case ATOM_DEVICE_LCD1_SUPPORT:
   2032 		result_device_id.device_type = DEVICE_TYPE_LCD;
   2033 		result_device_id.enum_id = 1;
   2034 		break;
   2035 
   2036 	case ATOM_DEVICE_LCD2_SUPPORT:
   2037 		result_device_id.device_type = DEVICE_TYPE_LCD;
   2038 		result_device_id.enum_id = 2;
   2039 		break;
   2040 
   2041 	case ATOM_DEVICE_CRT1_SUPPORT:
   2042 		result_device_id.device_type = DEVICE_TYPE_CRT;
   2043 		result_device_id.enum_id = 1;
   2044 		break;
   2045 
   2046 	case ATOM_DEVICE_CRT2_SUPPORT:
   2047 		result_device_id.device_type = DEVICE_TYPE_CRT;
   2048 		result_device_id.enum_id = 2;
   2049 		break;
   2050 
   2051 	case ATOM_DEVICE_DFP1_SUPPORT:
   2052 		result_device_id.device_type = DEVICE_TYPE_DFP;
   2053 		result_device_id.enum_id = 1;
   2054 		break;
   2055 
   2056 	case ATOM_DEVICE_DFP2_SUPPORT:
   2057 		result_device_id.device_type = DEVICE_TYPE_DFP;
   2058 		result_device_id.enum_id = 2;
   2059 		break;
   2060 
   2061 	case ATOM_DEVICE_DFP3_SUPPORT:
   2062 		result_device_id.device_type = DEVICE_TYPE_DFP;
   2063 		result_device_id.enum_id = 3;
   2064 		break;
   2065 
   2066 	case ATOM_DEVICE_DFP4_SUPPORT:
   2067 		result_device_id.device_type = DEVICE_TYPE_DFP;
   2068 		result_device_id.enum_id = 4;
   2069 		break;
   2070 
   2071 	case ATOM_DEVICE_DFP5_SUPPORT:
   2072 		result_device_id.device_type = DEVICE_TYPE_DFP;
   2073 		result_device_id.enum_id = 5;
   2074 		break;
   2075 
   2076 	case ATOM_DEVICE_DFP6_SUPPORT:
   2077 		result_device_id.device_type = DEVICE_TYPE_DFP;
   2078 		result_device_id.enum_id = 6;
   2079 		break;
   2080 
   2081 	default:
   2082 		BREAK_TO_DEBUGGER(); /* Invalid device Id */
   2083 		result_device_id.device_type = DEVICE_TYPE_UNKNOWN;
   2084 		result_device_id.enum_id = 0;
   2085 	}
   2086 	return result_device_id;
   2087 }
   2088 
   2089 static void get_atom_data_table_revision(
   2090 	ATOM_COMMON_TABLE_HEADER *atom_data_tbl,
   2091 	struct atom_data_revision *tbl_revision)
   2092 {
   2093 	if (!tbl_revision)
   2094 		return;
   2095 
   2096 	/* initialize the revision to 0 which is invalid revision */
   2097 	tbl_revision->major = 0;
   2098 	tbl_revision->minor = 0;
   2099 
   2100 	if (!atom_data_tbl)
   2101 		return;
   2102 
   2103 	tbl_revision->major =
   2104 			(uint32_t) GET_DATA_TABLE_MAJOR_REVISION(atom_data_tbl);
   2105 	tbl_revision->minor =
   2106 			(uint32_t) GET_DATA_TABLE_MINOR_REVISION(atom_data_tbl);
   2107 }
   2108 
   2109 static uint32_t signal_to_ss_id(enum as_signal_type signal)
   2110 {
   2111 	uint32_t clk_id_ss = 0;
   2112 
   2113 	switch (signal) {
   2114 	case AS_SIGNAL_TYPE_DVI:
   2115 		clk_id_ss = ASIC_INTERNAL_SS_ON_TMDS;
   2116 		break;
   2117 	case AS_SIGNAL_TYPE_HDMI:
   2118 		clk_id_ss = ASIC_INTERNAL_SS_ON_HDMI;
   2119 		break;
   2120 	case AS_SIGNAL_TYPE_LVDS:
   2121 		clk_id_ss = ASIC_INTERNAL_SS_ON_LVDS;
   2122 		break;
   2123 	case AS_SIGNAL_TYPE_DISPLAY_PORT:
   2124 		clk_id_ss = ASIC_INTERNAL_SS_ON_DP;
   2125 		break;
   2126 	case AS_SIGNAL_TYPE_GPU_PLL:
   2127 		clk_id_ss = ASIC_INTERNAL_GPUPLL_SS;
   2128 		break;
   2129 	default:
   2130 		break;
   2131 	}
   2132 	return clk_id_ss;
   2133 }
   2134 
   2135 static uint32_t get_support_mask_for_device_id(struct device_id device_id)
   2136 {
   2137 	enum dal_device_type device_type = device_id.device_type;
   2138 	uint32_t enum_id = device_id.enum_id;
   2139 
   2140 	switch (device_type) {
   2141 	case DEVICE_TYPE_LCD:
   2142 		switch (enum_id) {
   2143 		case 1:
   2144 			return ATOM_DEVICE_LCD1_SUPPORT;
   2145 		case 2:
   2146 			return ATOM_DEVICE_LCD2_SUPPORT;
   2147 		default:
   2148 			break;
   2149 		}
   2150 		break;
   2151 	case DEVICE_TYPE_CRT:
   2152 		switch (enum_id) {
   2153 		case 1:
   2154 			return ATOM_DEVICE_CRT1_SUPPORT;
   2155 		case 2:
   2156 			return ATOM_DEVICE_CRT2_SUPPORT;
   2157 		default:
   2158 			break;
   2159 		}
   2160 		break;
   2161 	case DEVICE_TYPE_DFP:
   2162 		switch (enum_id) {
   2163 		case 1:
   2164 			return ATOM_DEVICE_DFP1_SUPPORT;
   2165 		case 2:
   2166 			return ATOM_DEVICE_DFP2_SUPPORT;
   2167 		case 3:
   2168 			return ATOM_DEVICE_DFP3_SUPPORT;
   2169 		case 4:
   2170 			return ATOM_DEVICE_DFP4_SUPPORT;
   2171 		case 5:
   2172 			return ATOM_DEVICE_DFP5_SUPPORT;
   2173 		case 6:
   2174 			return ATOM_DEVICE_DFP6_SUPPORT;
   2175 		default:
   2176 			break;
   2177 		}
   2178 		break;
   2179 	case DEVICE_TYPE_CV:
   2180 		switch (enum_id) {
   2181 		case 1:
   2182 			return ATOM_DEVICE_CV_SUPPORT;
   2183 		default:
   2184 			break;
   2185 		}
   2186 		break;
   2187 	case DEVICE_TYPE_TV:
   2188 		switch (enum_id) {
   2189 		case 1:
   2190 			return ATOM_DEVICE_TV1_SUPPORT;
   2191 		default:
   2192 			break;
   2193 		}
   2194 		break;
   2195 	default:
   2196 		break;
   2197 	}
   2198 
   2199 	/* Unidentified device ID, return empty support mask. */
   2200 	return 0;
   2201 }
   2202 
   2203 /**
   2204  * bios_parser_set_scratch_critical_state
   2205  *
   2206  * @brief
   2207  *  update critical state bit in VBIOS scratch register
   2208  *
   2209  * @param
   2210  *  bool - to set or reset state
   2211  */
   2212 static void bios_parser_set_scratch_critical_state(
   2213 	struct dc_bios *dcb,
   2214 	bool state)
   2215 {
   2216 	bios_set_scratch_critical_state(dcb, state);
   2217 }
   2218 
   2219 /*
   2220  * get_integrated_info_v8
   2221  *
   2222  * @brief
   2223  * Get V8 integrated BIOS information
   2224  *
   2225  * @param
   2226  * bios_parser *bp - [in]BIOS parser handler to get master data table
   2227  * integrated_info *info - [out] store and output integrated info
   2228  *
   2229  * @return
   2230  * enum bp_result - BP_RESULT_OK if information is available,
   2231  *                  BP_RESULT_BADBIOSTABLE otherwise.
   2232  */
   2233 static enum bp_result get_integrated_info_v8(
   2234 	struct bios_parser *bp,
   2235 	struct integrated_info *info)
   2236 {
   2237 	ATOM_INTEGRATED_SYSTEM_INFO_V1_8 *info_v8;
   2238 	uint32_t i;
   2239 
   2240 	info_v8 = GET_IMAGE(ATOM_INTEGRATED_SYSTEM_INFO_V1_8,
   2241 			bp->master_data_tbl->ListOfDataTables.IntegratedSystemInfo);
   2242 
   2243 	if (info_v8 == NULL)
   2244 		return BP_RESULT_BADBIOSTABLE;
   2245 	info->boot_up_engine_clock = le32_to_cpu(info_v8->ulBootUpEngineClock) * 10;
   2246 	info->dentist_vco_freq = le32_to_cpu(info_v8->ulDentistVCOFreq) * 10;
   2247 	info->boot_up_uma_clock = le32_to_cpu(info_v8->ulBootUpUMAClock) * 10;
   2248 
   2249 	for (i = 0; i < NUMBER_OF_DISP_CLK_VOLTAGE; ++i) {
   2250 		/* Convert [10KHz] into [KHz] */
   2251 		info->disp_clk_voltage[i].max_supported_clk =
   2252 			le32_to_cpu(info_v8->sDISPCLK_Voltage[i].
   2253 				    ulMaximumSupportedCLK) * 10;
   2254 		info->disp_clk_voltage[i].voltage_index =
   2255 			le32_to_cpu(info_v8->sDISPCLK_Voltage[i].ulVoltageIndex);
   2256 	}
   2257 
   2258 	info->boot_up_req_display_vector =
   2259 		le32_to_cpu(info_v8->ulBootUpReqDisplayVector);
   2260 	info->gpu_cap_info =
   2261 		le32_to_cpu(info_v8->ulGPUCapInfo);
   2262 
   2263 	/*
   2264 	 * system_config: Bit[0] = 0 : PCIE power gating disabled
   2265 	 *                       = 1 : PCIE power gating enabled
   2266 	 *                Bit[1] = 0 : DDR-PLL shut down disabled
   2267 	 *                       = 1 : DDR-PLL shut down enabled
   2268 	 *                Bit[2] = 0 : DDR-PLL power down disabled
   2269 	 *                       = 1 : DDR-PLL power down enabled
   2270 	 */
   2271 	info->system_config = le32_to_cpu(info_v8->ulSystemConfig);
   2272 	info->cpu_cap_info = le32_to_cpu(info_v8->ulCPUCapInfo);
   2273 	info->boot_up_nb_voltage =
   2274 		le16_to_cpu(info_v8->usBootUpNBVoltage);
   2275 	info->ext_disp_conn_info_offset =
   2276 		le16_to_cpu(info_v8->usExtDispConnInfoOffset);
   2277 	info->memory_type = info_v8->ucMemoryType;
   2278 	info->ma_channel_number = info_v8->ucUMAChannelNumber;
   2279 	info->gmc_restore_reset_time =
   2280 		le32_to_cpu(info_v8->ulGMCRestoreResetTime);
   2281 
   2282 	info->minimum_n_clk =
   2283 		le32_to_cpu(info_v8->ulNbpStateNClkFreq[0]);
   2284 	for (i = 1; i < 4; ++i)
   2285 		info->minimum_n_clk =
   2286 			info->minimum_n_clk < le32_to_cpu(info_v8->ulNbpStateNClkFreq[i]) ?
   2287 			info->minimum_n_clk : le32_to_cpu(info_v8->ulNbpStateNClkFreq[i]);
   2288 
   2289 	info->idle_n_clk = le32_to_cpu(info_v8->ulIdleNClk);
   2290 	info->ddr_dll_power_up_time =
   2291 		le32_to_cpu(info_v8->ulDDR_DLL_PowerUpTime);
   2292 	info->ddr_pll_power_up_time =
   2293 		le32_to_cpu(info_v8->ulDDR_PLL_PowerUpTime);
   2294 	info->pcie_clk_ss_type = le16_to_cpu(info_v8->usPCIEClkSSType);
   2295 	info->lvds_ss_percentage =
   2296 		le16_to_cpu(info_v8->usLvdsSSPercentage);
   2297 	info->lvds_sspread_rate_in_10hz =
   2298 		le16_to_cpu(info_v8->usLvdsSSpreadRateIn10Hz);
   2299 	info->hdmi_ss_percentage =
   2300 		le16_to_cpu(info_v8->usHDMISSPercentage);
   2301 	info->hdmi_sspread_rate_in_10hz =
   2302 		le16_to_cpu(info_v8->usHDMISSpreadRateIn10Hz);
   2303 	info->dvi_ss_percentage =
   2304 		le16_to_cpu(info_v8->usDVISSPercentage);
   2305 	info->dvi_sspread_rate_in_10_hz =
   2306 		le16_to_cpu(info_v8->usDVISSpreadRateIn10Hz);
   2307 
   2308 	info->max_lvds_pclk_freq_in_single_link =
   2309 		le16_to_cpu(info_v8->usMaxLVDSPclkFreqInSingleLink);
   2310 	info->lvds_misc = info_v8->ucLvdsMisc;
   2311 	info->lvds_pwr_on_seq_dig_on_to_de_in_4ms =
   2312 		info_v8->ucLVDSPwrOnSeqDIGONtoDE_in4Ms;
   2313 	info->lvds_pwr_on_seq_de_to_vary_bl_in_4ms =
   2314 		info_v8->ucLVDSPwrOnSeqDEtoVARY_BL_in4Ms;
   2315 	info->lvds_pwr_on_seq_vary_bl_to_blon_in_4ms =
   2316 		info_v8->ucLVDSPwrOnSeqVARY_BLtoBLON_in4Ms;
   2317 	info->lvds_pwr_off_seq_vary_bl_to_de_in4ms =
   2318 		info_v8->ucLVDSPwrOffSeqVARY_BLtoDE_in4Ms;
   2319 	info->lvds_pwr_off_seq_de_to_dig_on_in4ms =
   2320 		info_v8->ucLVDSPwrOffSeqDEtoDIGON_in4Ms;
   2321 	info->lvds_pwr_off_seq_blon_to_vary_bl_in_4ms =
   2322 		info_v8->ucLVDSPwrOffSeqBLONtoVARY_BL_in4Ms;
   2323 	info->lvds_off_to_on_delay_in_4ms =
   2324 		info_v8->ucLVDSOffToOnDelay_in4Ms;
   2325 	info->lvds_bit_depth_control_val =
   2326 		le32_to_cpu(info_v8->ulLCDBitDepthControlVal);
   2327 
   2328 	for (i = 0; i < NUMBER_OF_AVAILABLE_SCLK; ++i) {
   2329 		/* Convert [10KHz] into [KHz] */
   2330 		info->avail_s_clk[i].supported_s_clk =
   2331 			le32_to_cpu(info_v8->sAvail_SCLK[i].ulSupportedSCLK) * 10;
   2332 		info->avail_s_clk[i].voltage_index =
   2333 			le16_to_cpu(info_v8->sAvail_SCLK[i].usVoltageIndex);
   2334 		info->avail_s_clk[i].voltage_id =
   2335 			le16_to_cpu(info_v8->sAvail_SCLK[i].usVoltageID);
   2336 	}
   2337 
   2338 	for (i = 0; i < NUMBER_OF_UCHAR_FOR_GUID; ++i) {
   2339 		info->ext_disp_conn_info.gu_id[i] =
   2340 			info_v8->sExtDispConnInfo.ucGuid[i];
   2341 	}
   2342 
   2343 	for (i = 0; i < MAX_NUMBER_OF_EXT_DISPLAY_PATH; ++i) {
   2344 		info->ext_disp_conn_info.path[i].device_connector_id =
   2345 			object_id_from_bios_object_id(
   2346 				le16_to_cpu(info_v8->sExtDispConnInfo.sPath[i].usDeviceConnector));
   2347 
   2348 		info->ext_disp_conn_info.path[i].ext_encoder_obj_id =
   2349 			object_id_from_bios_object_id(
   2350 				le16_to_cpu(info_v8->sExtDispConnInfo.sPath[i].usExtEncoderObjId));
   2351 
   2352 		info->ext_disp_conn_info.path[i].device_tag =
   2353 			le16_to_cpu(info_v8->sExtDispConnInfo.sPath[i].usDeviceTag);
   2354 		info->ext_disp_conn_info.path[i].device_acpi_enum =
   2355 			le16_to_cpu(info_v8->sExtDispConnInfo.sPath[i].usDeviceACPIEnum);
   2356 		info->ext_disp_conn_info.path[i].ext_aux_ddc_lut_index =
   2357 			info_v8->sExtDispConnInfo.sPath[i].ucExtAUXDDCLutIndex;
   2358 		info->ext_disp_conn_info.path[i].ext_hpd_pin_lut_index =
   2359 			info_v8->sExtDispConnInfo.sPath[i].ucExtHPDPINLutIndex;
   2360 		info->ext_disp_conn_info.path[i].channel_mapping.raw =
   2361 			info_v8->sExtDispConnInfo.sPath[i].ucChannelMapping;
   2362 	}
   2363 	info->ext_disp_conn_info.checksum =
   2364 		info_v8->sExtDispConnInfo.ucChecksum;
   2365 
   2366 	return BP_RESULT_OK;
   2367 }
   2368 
   2369 /*
   2370  * get_integrated_info_v8
   2371  *
   2372  * @brief
   2373  * Get V8 integrated BIOS information
   2374  *
   2375  * @param
   2376  * bios_parser *bp - [in]BIOS parser handler to get master data table
   2377  * integrated_info *info - [out] store and output integrated info
   2378  *
   2379  * @return
   2380  * enum bp_result - BP_RESULT_OK if information is available,
   2381  *                  BP_RESULT_BADBIOSTABLE otherwise.
   2382  */
   2383 static enum bp_result get_integrated_info_v9(
   2384 	struct bios_parser *bp,
   2385 	struct integrated_info *info)
   2386 {
   2387 	ATOM_INTEGRATED_SYSTEM_INFO_V1_9 *info_v9;
   2388 	uint32_t i;
   2389 
   2390 	info_v9 = GET_IMAGE(ATOM_INTEGRATED_SYSTEM_INFO_V1_9,
   2391 			bp->master_data_tbl->ListOfDataTables.IntegratedSystemInfo);
   2392 
   2393 	if (!info_v9)
   2394 		return BP_RESULT_BADBIOSTABLE;
   2395 
   2396 	info->boot_up_engine_clock = le32_to_cpu(info_v9->ulBootUpEngineClock) * 10;
   2397 	info->dentist_vco_freq = le32_to_cpu(info_v9->ulDentistVCOFreq) * 10;
   2398 	info->boot_up_uma_clock = le32_to_cpu(info_v9->ulBootUpUMAClock) * 10;
   2399 
   2400 	for (i = 0; i < NUMBER_OF_DISP_CLK_VOLTAGE; ++i) {
   2401 		/* Convert [10KHz] into [KHz] */
   2402 		info->disp_clk_voltage[i].max_supported_clk =
   2403 			le32_to_cpu(info_v9->sDISPCLK_Voltage[i].ulMaximumSupportedCLK) * 10;
   2404 		info->disp_clk_voltage[i].voltage_index =
   2405 			le32_to_cpu(info_v9->sDISPCLK_Voltage[i].ulVoltageIndex);
   2406 	}
   2407 
   2408 	info->boot_up_req_display_vector =
   2409 		le32_to_cpu(info_v9->ulBootUpReqDisplayVector);
   2410 	info->gpu_cap_info = le32_to_cpu(info_v9->ulGPUCapInfo);
   2411 
   2412 	/*
   2413 	 * system_config: Bit[0] = 0 : PCIE power gating disabled
   2414 	 *                       = 1 : PCIE power gating enabled
   2415 	 *                Bit[1] = 0 : DDR-PLL shut down disabled
   2416 	 *                       = 1 : DDR-PLL shut down enabled
   2417 	 *                Bit[2] = 0 : DDR-PLL power down disabled
   2418 	 *                       = 1 : DDR-PLL power down enabled
   2419 	 */
   2420 	info->system_config = le32_to_cpu(info_v9->ulSystemConfig);
   2421 	info->cpu_cap_info = le32_to_cpu(info_v9->ulCPUCapInfo);
   2422 	info->boot_up_nb_voltage = le16_to_cpu(info_v9->usBootUpNBVoltage);
   2423 	info->ext_disp_conn_info_offset = le16_to_cpu(info_v9->usExtDispConnInfoOffset);
   2424 	info->memory_type = info_v9->ucMemoryType;
   2425 	info->ma_channel_number = info_v9->ucUMAChannelNumber;
   2426 	info->gmc_restore_reset_time = le32_to_cpu(info_v9->ulGMCRestoreResetTime);
   2427 
   2428 	info->minimum_n_clk = le32_to_cpu(info_v9->ulNbpStateNClkFreq[0]);
   2429 	for (i = 1; i < 4; ++i)
   2430 		info->minimum_n_clk =
   2431 			info->minimum_n_clk < le32_to_cpu(info_v9->ulNbpStateNClkFreq[i]) ?
   2432 			info->minimum_n_clk : le32_to_cpu(info_v9->ulNbpStateNClkFreq[i]);
   2433 
   2434 	info->idle_n_clk = le32_to_cpu(info_v9->ulIdleNClk);
   2435 	info->ddr_dll_power_up_time = le32_to_cpu(info_v9->ulDDR_DLL_PowerUpTime);
   2436 	info->ddr_pll_power_up_time = le32_to_cpu(info_v9->ulDDR_PLL_PowerUpTime);
   2437 	info->pcie_clk_ss_type = le16_to_cpu(info_v9->usPCIEClkSSType);
   2438 	info->lvds_ss_percentage = le16_to_cpu(info_v9->usLvdsSSPercentage);
   2439 	info->lvds_sspread_rate_in_10hz = le16_to_cpu(info_v9->usLvdsSSpreadRateIn10Hz);
   2440 	info->hdmi_ss_percentage = le16_to_cpu(info_v9->usHDMISSPercentage);
   2441 	info->hdmi_sspread_rate_in_10hz = le16_to_cpu(info_v9->usHDMISSpreadRateIn10Hz);
   2442 	info->dvi_ss_percentage = le16_to_cpu(info_v9->usDVISSPercentage);
   2443 	info->dvi_sspread_rate_in_10_hz = le16_to_cpu(info_v9->usDVISSpreadRateIn10Hz);
   2444 
   2445 	info->max_lvds_pclk_freq_in_single_link =
   2446 		le16_to_cpu(info_v9->usMaxLVDSPclkFreqInSingleLink);
   2447 	info->lvds_misc = info_v9->ucLvdsMisc;
   2448 	info->lvds_pwr_on_seq_dig_on_to_de_in_4ms =
   2449 		info_v9->ucLVDSPwrOnSeqDIGONtoDE_in4Ms;
   2450 	info->lvds_pwr_on_seq_de_to_vary_bl_in_4ms =
   2451 		info_v9->ucLVDSPwrOnSeqDEtoVARY_BL_in4Ms;
   2452 	info->lvds_pwr_on_seq_vary_bl_to_blon_in_4ms =
   2453 		info_v9->ucLVDSPwrOnSeqVARY_BLtoBLON_in4Ms;
   2454 	info->lvds_pwr_off_seq_vary_bl_to_de_in4ms =
   2455 		info_v9->ucLVDSPwrOffSeqVARY_BLtoDE_in4Ms;
   2456 	info->lvds_pwr_off_seq_de_to_dig_on_in4ms =
   2457 		info_v9->ucLVDSPwrOffSeqDEtoDIGON_in4Ms;
   2458 	info->lvds_pwr_off_seq_blon_to_vary_bl_in_4ms =
   2459 		info_v9->ucLVDSPwrOffSeqBLONtoVARY_BL_in4Ms;
   2460 	info->lvds_off_to_on_delay_in_4ms =
   2461 		info_v9->ucLVDSOffToOnDelay_in4Ms;
   2462 	info->lvds_bit_depth_control_val =
   2463 		le32_to_cpu(info_v9->ulLCDBitDepthControlVal);
   2464 
   2465 	for (i = 0; i < NUMBER_OF_AVAILABLE_SCLK; ++i) {
   2466 		/* Convert [10KHz] into [KHz] */
   2467 		info->avail_s_clk[i].supported_s_clk =
   2468 			le32_to_cpu(info_v9->sAvail_SCLK[i].ulSupportedSCLK) * 10;
   2469 		info->avail_s_clk[i].voltage_index =
   2470 			le16_to_cpu(info_v9->sAvail_SCLK[i].usVoltageIndex);
   2471 		info->avail_s_clk[i].voltage_id =
   2472 			le16_to_cpu(info_v9->sAvail_SCLK[i].usVoltageID);
   2473 	}
   2474 
   2475 	for (i = 0; i < NUMBER_OF_UCHAR_FOR_GUID; ++i) {
   2476 		info->ext_disp_conn_info.gu_id[i] =
   2477 			info_v9->sExtDispConnInfo.ucGuid[i];
   2478 	}
   2479 
   2480 	for (i = 0; i < MAX_NUMBER_OF_EXT_DISPLAY_PATH; ++i) {
   2481 		info->ext_disp_conn_info.path[i].device_connector_id =
   2482 			object_id_from_bios_object_id(
   2483 				le16_to_cpu(info_v9->sExtDispConnInfo.sPath[i].usDeviceConnector));
   2484 
   2485 		info->ext_disp_conn_info.path[i].ext_encoder_obj_id =
   2486 			object_id_from_bios_object_id(
   2487 				le16_to_cpu(info_v9->sExtDispConnInfo.sPath[i].usExtEncoderObjId));
   2488 
   2489 		info->ext_disp_conn_info.path[i].device_tag =
   2490 			le16_to_cpu(info_v9->sExtDispConnInfo.sPath[i].usDeviceTag);
   2491 		info->ext_disp_conn_info.path[i].device_acpi_enum =
   2492 			le16_to_cpu(info_v9->sExtDispConnInfo.sPath[i].usDeviceACPIEnum);
   2493 		info->ext_disp_conn_info.path[i].ext_aux_ddc_lut_index =
   2494 			info_v9->sExtDispConnInfo.sPath[i].ucExtAUXDDCLutIndex;
   2495 		info->ext_disp_conn_info.path[i].ext_hpd_pin_lut_index =
   2496 			info_v9->sExtDispConnInfo.sPath[i].ucExtHPDPINLutIndex;
   2497 		info->ext_disp_conn_info.path[i].channel_mapping.raw =
   2498 			info_v9->sExtDispConnInfo.sPath[i].ucChannelMapping;
   2499 	}
   2500 	info->ext_disp_conn_info.checksum =
   2501 		info_v9->sExtDispConnInfo.ucChecksum;
   2502 
   2503 	return BP_RESULT_OK;
   2504 }
   2505 
   2506 /*
   2507  * construct_integrated_info
   2508  *
   2509  * @brief
   2510  * Get integrated BIOS information based on table revision
   2511  *
   2512  * @param
   2513  * bios_parser *bp - [in]BIOS parser handler to get master data table
   2514  * integrated_info *info - [out] store and output integrated info
   2515  *
   2516  * @return
   2517  * enum bp_result - BP_RESULT_OK if information is available,
   2518  *                  BP_RESULT_BADBIOSTABLE otherwise.
   2519  */
   2520 static enum bp_result construct_integrated_info(
   2521 	struct bios_parser *bp,
   2522 	struct integrated_info *info)
   2523 {
   2524 	enum bp_result result = BP_RESULT_BADBIOSTABLE;
   2525 
   2526 	ATOM_COMMON_TABLE_HEADER *header;
   2527 	struct atom_data_revision revision;
   2528 
   2529 	if (bp->master_data_tbl->ListOfDataTables.IntegratedSystemInfo) {
   2530 		header = GET_IMAGE(ATOM_COMMON_TABLE_HEADER,
   2531 				bp->master_data_tbl->ListOfDataTables.IntegratedSystemInfo);
   2532 
   2533 		get_atom_data_table_revision(header, &revision);
   2534 
   2535 		/* Don't need to check major revision as they are all 1 */
   2536 		switch (revision.minor) {
   2537 		case 8:
   2538 			result = get_integrated_info_v8(bp, info);
   2539 			break;
   2540 		case 9:
   2541 			result = get_integrated_info_v9(bp, info);
   2542 			break;
   2543 		default:
   2544 			return result;
   2545 
   2546 		}
   2547 	}
   2548 
   2549 	/* Sort voltage table from low to high*/
   2550 	if (result == BP_RESULT_OK) {
   2551 		uint32_t i;
   2552 		uint32_t j;
   2553 
   2554 		for (i = 1; i < NUMBER_OF_DISP_CLK_VOLTAGE; ++i) {
   2555 			for (j = i; j > 0; --j) {
   2556 				if (
   2557 						info->disp_clk_voltage[j].max_supported_clk <
   2558 						info->disp_clk_voltage[j-1].max_supported_clk) {
   2559 					/* swap j and j - 1*/
   2560 					swap(info->disp_clk_voltage[j - 1],
   2561 					     info->disp_clk_voltage[j]);
   2562 				}
   2563 			}
   2564 		}
   2565 
   2566 	}
   2567 
   2568 	return result;
   2569 }
   2570 
   2571 static struct integrated_info *bios_parser_create_integrated_info(
   2572 	struct dc_bios *dcb)
   2573 {
   2574 	struct bios_parser *bp = BP_FROM_DCB(dcb);
   2575 	struct integrated_info *info = NULL;
   2576 
   2577 	info = kzalloc(sizeof(struct integrated_info), GFP_KERNEL);
   2578 
   2579 	if (info == NULL) {
   2580 		ASSERT_CRITICAL(0);
   2581 		return NULL;
   2582 	}
   2583 
   2584 	if (construct_integrated_info(bp, info) == BP_RESULT_OK)
   2585 		return info;
   2586 
   2587 	kfree(info);
   2588 
   2589 	return NULL;
   2590 }
   2591 
   2592 enum bp_result update_slot_layout_info(
   2593 	struct dc_bios *dcb,
   2594 	unsigned int i,
   2595 	struct slot_layout_info *slot_layout_info,
   2596 	unsigned int record_offset)
   2597 {
   2598 	unsigned int j;
   2599 	struct bios_parser *bp;
   2600 	ATOM_BRACKET_LAYOUT_RECORD *record;
   2601 	ATOM_COMMON_RECORD_HEADER *record_header;
   2602 	enum bp_result result = BP_RESULT_NORECORD;
   2603 
   2604 	bp = BP_FROM_DCB(dcb);
   2605 	record = NULL;
   2606 	record_header = NULL;
   2607 
   2608 	for (;;) {
   2609 
   2610 		record_header = (ATOM_COMMON_RECORD_HEADER *)
   2611 			GET_IMAGE(ATOM_COMMON_RECORD_HEADER, record_offset);
   2612 		if (record_header == NULL) {
   2613 			result = BP_RESULT_BADBIOSTABLE;
   2614 			break;
   2615 		}
   2616 
   2617 		/* the end of the list */
   2618 		if (record_header->ucRecordType == 0xff ||
   2619 			record_header->ucRecordSize == 0)	{
   2620 			break;
   2621 		}
   2622 
   2623 		if (record_header->ucRecordType ==
   2624 			ATOM_BRACKET_LAYOUT_RECORD_TYPE &&
   2625 			sizeof(ATOM_BRACKET_LAYOUT_RECORD)
   2626 			<= record_header->ucRecordSize) {
   2627 			record = (ATOM_BRACKET_LAYOUT_RECORD *)
   2628 				(record_header);
   2629 			result = BP_RESULT_OK;
   2630 			break;
   2631 		}
   2632 
   2633 		record_offset += record_header->ucRecordSize;
   2634 	}
   2635 
   2636 	/* return if the record not found */
   2637 	if (result != BP_RESULT_OK)
   2638 		return result;
   2639 
   2640 	/* get slot sizes */
   2641 	slot_layout_info->length = record->ucLength;
   2642 	slot_layout_info->width = record->ucWidth;
   2643 
   2644 	/* get info for each connector in the slot */
   2645 	slot_layout_info->num_of_connectors = record->ucConnNum;
   2646 	for (j = 0; j < slot_layout_info->num_of_connectors; ++j) {
   2647 		slot_layout_info->connectors[j].connector_type =
   2648 			(enum connector_layout_type)
   2649 			(record->asConnInfo[j].ucConnectorType);
   2650 		switch (record->asConnInfo[j].ucConnectorType) {
   2651 		case CONNECTOR_TYPE_DVI_D:
   2652 			slot_layout_info->connectors[j].connector_type =
   2653 				CONNECTOR_LAYOUT_TYPE_DVI_D;
   2654 			slot_layout_info->connectors[j].length =
   2655 				CONNECTOR_SIZE_DVI;
   2656 			break;
   2657 
   2658 		case CONNECTOR_TYPE_HDMI:
   2659 			slot_layout_info->connectors[j].connector_type =
   2660 				CONNECTOR_LAYOUT_TYPE_HDMI;
   2661 			slot_layout_info->connectors[j].length =
   2662 				CONNECTOR_SIZE_HDMI;
   2663 			break;
   2664 
   2665 		case CONNECTOR_TYPE_DISPLAY_PORT:
   2666 			slot_layout_info->connectors[j].connector_type =
   2667 				CONNECTOR_LAYOUT_TYPE_DP;
   2668 			slot_layout_info->connectors[j].length =
   2669 				CONNECTOR_SIZE_DP;
   2670 			break;
   2671 
   2672 		case CONNECTOR_TYPE_MINI_DISPLAY_PORT:
   2673 			slot_layout_info->connectors[j].connector_type =
   2674 				CONNECTOR_LAYOUT_TYPE_MINI_DP;
   2675 			slot_layout_info->connectors[j].length =
   2676 				CONNECTOR_SIZE_MINI_DP;
   2677 			break;
   2678 
   2679 		default:
   2680 			slot_layout_info->connectors[j].connector_type =
   2681 				CONNECTOR_LAYOUT_TYPE_UNKNOWN;
   2682 			slot_layout_info->connectors[j].length =
   2683 				CONNECTOR_SIZE_UNKNOWN;
   2684 		}
   2685 
   2686 		slot_layout_info->connectors[j].position =
   2687 			record->asConnInfo[j].ucPosition;
   2688 		slot_layout_info->connectors[j].connector_id =
   2689 			object_id_from_bios_object_id(
   2690 				record->asConnInfo[j].usConnectorObjectId);
   2691 	}
   2692 	return result;
   2693 }
   2694 
   2695 
   2696 enum bp_result get_bracket_layout_record(
   2697 	struct dc_bios *dcb,
   2698 	unsigned int bracket_layout_id,
   2699 	struct slot_layout_info *slot_layout_info)
   2700 {
   2701 	unsigned int i;
   2702 	unsigned int record_offset;
   2703 	struct bios_parser *bp;
   2704 	enum bp_result result;
   2705 	ATOM_OBJECT *object;
   2706 	ATOM_OBJECT_TABLE *object_table;
   2707 	unsigned int genericTableOffset;
   2708 
   2709 	bp = BP_FROM_DCB(dcb);
   2710 	object = NULL;
   2711 	if (slot_layout_info == NULL) {
   2712 		DC_LOG_DETECTION_EDID_PARSER("Invalid slot_layout_info\n");
   2713 		return BP_RESULT_BADINPUT;
   2714 	}
   2715 
   2716 
   2717 	genericTableOffset = bp->object_info_tbl_offset +
   2718 		bp->object_info_tbl.v1_3->usMiscObjectTableOffset;
   2719 	object_table = (ATOM_OBJECT_TABLE *)
   2720 		GET_IMAGE(ATOM_OBJECT_TABLE, genericTableOffset);
   2721 	if (!object_table)
   2722 		return BP_RESULT_FAILURE;
   2723 
   2724 	result = BP_RESULT_NORECORD;
   2725 	for (i = 0; i < object_table->ucNumberOfObjects; ++i) {
   2726 
   2727 		if (bracket_layout_id ==
   2728 			object_table->asObjects[i].usObjectID) {
   2729 
   2730 			object = &object_table->asObjects[i];
   2731 			record_offset = object->usRecordOffset +
   2732 				bp->object_info_tbl_offset;
   2733 
   2734 			result = update_slot_layout_info(dcb, i,
   2735 				slot_layout_info, record_offset);
   2736 			break;
   2737 		}
   2738 	}
   2739 	return result;
   2740 }
   2741 
   2742 static enum bp_result bios_get_board_layout_info(
   2743 	struct dc_bios *dcb,
   2744 	struct board_layout_info *board_layout_info)
   2745 {
   2746 	unsigned int i;
   2747 	enum bp_result record_result;
   2748 
   2749 	const unsigned int slot_index_to_vbios_id[MAX_BOARD_SLOTS] = {
   2750 		GENERICOBJECT_BRACKET_LAYOUT_ENUM_ID1,
   2751 		GENERICOBJECT_BRACKET_LAYOUT_ENUM_ID2,
   2752 		0, 0
   2753 	};
   2754 
   2755 	if (board_layout_info == NULL) {
   2756 		DC_LOG_DETECTION_EDID_PARSER("Invalid board_layout_info\n");
   2757 		return BP_RESULT_BADINPUT;
   2758 	}
   2759 
   2760 	board_layout_info->num_of_slots = 0;
   2761 
   2762 	for (i = 0; i < MAX_BOARD_SLOTS; ++i) {
   2763 		record_result = get_bracket_layout_record(dcb,
   2764 			slot_index_to_vbios_id[i],
   2765 			&board_layout_info->slots[i]);
   2766 
   2767 		if (record_result == BP_RESULT_NORECORD && i > 0)
   2768 			break; /* no more slots present in bios */
   2769 		else if (record_result != BP_RESULT_OK)
   2770 			return record_result;  /* fail */
   2771 
   2772 		++board_layout_info->num_of_slots;
   2773 	}
   2774 
   2775 	/* all data is valid */
   2776 	board_layout_info->is_number_of_slots_valid = 1;
   2777 	board_layout_info->is_slots_size_valid = 1;
   2778 	board_layout_info->is_connector_offsets_valid = 1;
   2779 	board_layout_info->is_connector_lengths_valid = 1;
   2780 
   2781 	return BP_RESULT_OK;
   2782 }
   2783 
   2784 /******************************************************************************/
   2785 
   2786 static const struct dc_vbios_funcs vbios_funcs = {
   2787 	.get_connectors_number = bios_parser_get_connectors_number,
   2788 
   2789 	.get_connector_id = bios_parser_get_connector_id,
   2790 
   2791 	.get_src_obj = bios_parser_get_src_obj,
   2792 
   2793 	.get_i2c_info = bios_parser_get_i2c_info,
   2794 
   2795 	.get_hpd_info = bios_parser_get_hpd_info,
   2796 
   2797 	.get_device_tag = bios_parser_get_device_tag,
   2798 
   2799 	.get_spread_spectrum_info = bios_parser_get_spread_spectrum_info,
   2800 
   2801 	.get_ss_entry_number = bios_parser_get_ss_entry_number,
   2802 
   2803 	.get_embedded_panel_info = bios_parser_get_embedded_panel_info,
   2804 
   2805 	.get_gpio_pin_info = bios_parser_get_gpio_pin_info,
   2806 
   2807 	.get_encoder_cap_info = bios_parser_get_encoder_cap_info,
   2808 
   2809 	/* bios scratch register communication */
   2810 	.is_accelerated_mode = bios_is_accelerated_mode,
   2811 
   2812 	.set_scratch_critical_state = bios_parser_set_scratch_critical_state,
   2813 
   2814 	.is_device_id_supported = bios_parser_is_device_id_supported,
   2815 
   2816 	/* COMMANDS */
   2817 	.encoder_control = bios_parser_encoder_control,
   2818 
   2819 	.transmitter_control = bios_parser_transmitter_control,
   2820 
   2821 	.enable_crtc = bios_parser_enable_crtc,
   2822 
   2823 	.adjust_pixel_clock = bios_parser_adjust_pixel_clock,
   2824 
   2825 	.set_pixel_clock = bios_parser_set_pixel_clock,
   2826 
   2827 	.set_dce_clock = bios_parser_set_dce_clock,
   2828 
   2829 	.enable_spread_spectrum_on_ppll = bios_parser_enable_spread_spectrum_on_ppll,
   2830 
   2831 	.program_crtc_timing = bios_parser_program_crtc_timing, /* still use.  should probably retire and program directly */
   2832 
   2833 	.program_display_engine_pll = bios_parser_program_display_engine_pll,
   2834 
   2835 	.enable_disp_power_gating = bios_parser_enable_disp_power_gating,
   2836 
   2837 	/* SW init and patch */
   2838 
   2839 	.bios_parser_destroy = bios_parser_destroy,
   2840 
   2841 	.get_board_layout_info = bios_get_board_layout_info,
   2842 };
   2843 
   2844 static bool bios_parser_construct(
   2845 	struct bios_parser *bp,
   2846 	struct bp_init_data *init,
   2847 	enum dce_version dce_version)
   2848 {
   2849 	uint16_t *rom_header_offset = NULL;
   2850 	ATOM_ROM_HEADER *rom_header = NULL;
   2851 	ATOM_OBJECT_HEADER *object_info_tbl;
   2852 	struct atom_data_revision tbl_rev = {0};
   2853 
   2854 	if (!init)
   2855 		return false;
   2856 
   2857 	if (!init->bios)
   2858 		return false;
   2859 
   2860 	bp->base.funcs = &vbios_funcs;
   2861 	bp->base.bios = init->bios;
   2862 	bp->base.bios_size = bp->base.bios[BIOS_IMAGE_SIZE_OFFSET] * BIOS_IMAGE_SIZE_UNIT;
   2863 
   2864 	bp->base.ctx = init->ctx;
   2865 	bp->base.bios_local_image = NULL;
   2866 
   2867 	rom_header_offset =
   2868 	GET_IMAGE(uint16_t, OFFSET_TO_POINTER_TO_ATOM_ROM_HEADER);
   2869 
   2870 	if (!rom_header_offset)
   2871 		return false;
   2872 
   2873 	rom_header = GET_IMAGE(ATOM_ROM_HEADER, *rom_header_offset);
   2874 
   2875 	if (!rom_header)
   2876 		return false;
   2877 
   2878 	get_atom_data_table_revision(&rom_header->sHeader, &tbl_rev);
   2879 	if (tbl_rev.major >= 2 && tbl_rev.minor >= 2)
   2880 		return false;
   2881 
   2882 	bp->master_data_tbl =
   2883 	GET_IMAGE(ATOM_MASTER_DATA_TABLE,
   2884 		rom_header->usMasterDataTableOffset);
   2885 
   2886 	if (!bp->master_data_tbl)
   2887 		return false;
   2888 
   2889 	bp->object_info_tbl_offset = DATA_TABLES(Object_Header);
   2890 
   2891 	if (!bp->object_info_tbl_offset)
   2892 		return false;
   2893 
   2894 	object_info_tbl =
   2895 	GET_IMAGE(ATOM_OBJECT_HEADER, bp->object_info_tbl_offset);
   2896 
   2897 	if (!object_info_tbl)
   2898 		return false;
   2899 
   2900 	get_atom_data_table_revision(&object_info_tbl->sHeader,
   2901 		&bp->object_info_tbl.revision);
   2902 
   2903 	if (bp->object_info_tbl.revision.major == 1
   2904 		&& bp->object_info_tbl.revision.minor >= 3) {
   2905 		ATOM_OBJECT_HEADER_V3 *tbl_v3;
   2906 
   2907 		tbl_v3 = GET_IMAGE(ATOM_OBJECT_HEADER_V3,
   2908 			bp->object_info_tbl_offset);
   2909 		if (!tbl_v3)
   2910 			return false;
   2911 
   2912 		bp->object_info_tbl.v1_3 = tbl_v3;
   2913 	} else if (bp->object_info_tbl.revision.major == 1
   2914 		&& bp->object_info_tbl.revision.minor >= 1)
   2915 		bp->object_info_tbl.v1_1 = object_info_tbl;
   2916 	else
   2917 		return false;
   2918 
   2919 	dal_bios_parser_init_cmd_tbl(bp);
   2920 	dal_bios_parser_init_cmd_tbl_helper(&bp->cmd_helper, dce_version);
   2921 
   2922 	bp->base.integrated_info = bios_parser_create_integrated_info(&bp->base);
   2923 	bp->base.fw_info_valid = bios_parser_get_firmware_info(&bp->base, &bp->base.fw_info) == BP_RESULT_OK;
   2924 
   2925 	return true;
   2926 }
   2927 
   2928 /******************************************************************************/
   2929