xref: /dragonfly/sys/dev/drm/amd/display/dc/bios/bios_parser2.c (revision b843c749addef9340ee7d4e250b09fdd492602a1)
1 /*
2  * Copyright 2012-15 Advanced Micro Devices, Inc.
3  *
4  * Permission is hereby granted, free of charge, to any person obtaining a
5  * copy of this software and associated documentation files (the "Software"),
6  * to deal in the Software without restriction, including without limitation
7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8  * and/or sell copies of the Software, and to permit persons to whom the
9  * Software is furnished to do so, subject to the following conditions:
10  *
11  * The above copyright notice and this permission notice shall be included in
12  * all copies or substantial portions of the Software.
13  *
14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20  * OTHER DEALINGS IN THE SOFTWARE.
21  *
22  * Authors: AMD
23  *
24  */
25 
26 #include "dm_services.h"
27 
28 #include "ObjectID.h"
29 #include "atomfirmware.h"
30 
31 #include "dc_bios_types.h"
32 #include "include/grph_object_ctrl_defs.h"
33 #include "include/bios_parser_interface.h"
34 #include "include/i2caux_interface.h"
35 #include "include/logger_interface.h"
36 
37 #include "command_table2.h"
38 
39 #include "bios_parser_helper.h"
40 #include "command_table_helper2.h"
41 #include "bios_parser2.h"
42 #include "bios_parser_types_internal2.h"
43 #include "bios_parser_interface.h"
44 
45 #include "bios_parser_common.h"
46 
47 /* Temporarily add in defines until ObjectID.h patch is updated in a few days */
48 #ifndef GENERIC_OBJECT_ID_BRACKET_LAYOUT
49 #define GENERIC_OBJECT_ID_BRACKET_LAYOUT          0x05
50 #endif /* GENERIC_OBJECT_ID_BRACKET_LAYOUT */
51 
52 #ifndef GENERICOBJECT_BRACKET_LAYOUT_ENUM_ID1
53 #define GENERICOBJECT_BRACKET_LAYOUT_ENUM_ID1     \
54           (GRAPH_OBJECT_TYPE_GENERIC << OBJECT_TYPE_SHIFT |\
55           GRAPH_OBJECT_ENUM_ID1 << ENUM_ID_SHIFT |\
56           GENERIC_OBJECT_ID_BRACKET_LAYOUT << OBJECT_ID_SHIFT)
57 #endif /* GENERICOBJECT_BRACKET_LAYOUT_ENUM_ID1 */
58 
59 #ifndef GENERICOBJECT_BRACKET_LAYOUT_ENUM_ID2
60 #define GENERICOBJECT_BRACKET_LAYOUT_ENUM_ID2     \
61           (GRAPH_OBJECT_TYPE_GENERIC << OBJECT_TYPE_SHIFT |\
62           GRAPH_OBJECT_ENUM_ID2 << ENUM_ID_SHIFT |\
63           GENERIC_OBJECT_ID_BRACKET_LAYOUT << OBJECT_ID_SHIFT)
64 #endif /* GENERICOBJECT_BRACKET_LAYOUT_ENUM_ID2 */
65 
66 #define DC_LOGGER \
67           bp->base.ctx->logger
68 
69 #define LAST_RECORD_TYPE 0xff
70 #define SMU9_SYSPLL0_ID  0
71 
72 struct i2c_id_config_access {
73           uint8_t bfI2C_LineMux:4;
74           uint8_t bfHW_EngineID:3;
75           uint8_t bfHW_Capable:1;
76           uint8_t ucAccess;
77 };
78 
79 static enum bp_result get_gpio_i2c_info(struct bios_parser *bp,
80           struct atom_i2c_record *record,
81           struct graphics_object_i2c_info *info);
82 
83 static enum bp_result bios_parser_get_firmware_info(
84           struct dc_bios *dcb,
85           struct dc_firmware_info *info);
86 
87 static enum bp_result bios_parser_get_encoder_cap_info(
88           struct dc_bios *dcb,
89           struct graphics_object_id object_id,
90           struct bp_encoder_cap_info *info);
91 
92 static enum bp_result get_firmware_info_v3_1(
93           struct bios_parser *bp,
94           struct dc_firmware_info *info);
95 
96 static enum bp_result get_firmware_info_v3_2(
97           struct bios_parser *bp,
98           struct dc_firmware_info *info);
99 
100 static struct atom_hpd_int_record *get_hpd_record(struct bios_parser *bp,
101                     struct atom_display_object_path_v2 *object);
102 
103 static struct atom_encoder_caps_record *get_encoder_cap_record(
104           struct bios_parser *bp,
105           struct atom_display_object_path_v2 *object);
106 
107 #define BIOS_IMAGE_SIZE_OFFSET 2
108 #define BIOS_IMAGE_SIZE_UNIT 512
109 
110 #define DATA_TABLES(table) (bp->master_data_tbl->listOfdatatables.table)
111 
destruct(struct bios_parser * bp)112 static void destruct(struct bios_parser *bp)
113 {
114           kfree(bp->base.bios_local_image);
115           kfree(bp->base.integrated_info);
116 }
117 
firmware_parser_destroy(struct dc_bios ** dcb)118 static void firmware_parser_destroy(struct dc_bios **dcb)
119 {
120           struct bios_parser *bp = BP_FROM_DCB(*dcb);
121 
122           if (!bp) {
123                     BREAK_TO_DEBUGGER();
124                     return;
125           }
126 
127           destruct(bp);
128 
129           kfree(bp);
130           *dcb = NULL;
131 }
132 
get_atom_data_table_revision(struct atom_common_table_header * atom_data_tbl,struct atom_data_revision * tbl_revision)133 static void get_atom_data_table_revision(
134           struct atom_common_table_header *atom_data_tbl,
135           struct atom_data_revision *tbl_revision)
136 {
137           if (!tbl_revision)
138                     return;
139 
140           /* initialize the revision to 0 which is invalid revision */
141           tbl_revision->major = 0;
142           tbl_revision->minor = 0;
143 
144           if (!atom_data_tbl)
145                     return;
146 
147           tbl_revision->major =
148                               (uint32_t) atom_data_tbl->format_revision & 0x3f;
149           tbl_revision->minor =
150                               (uint32_t) atom_data_tbl->content_revision & 0x3f;
151 }
152 
153 /* BIOS oject table displaypath is per connector.
154  * There is extra path not for connector. BIOS fill its encoderid as 0
155  */
bios_parser_get_connectors_number(struct dc_bios * dcb)156 static uint8_t bios_parser_get_connectors_number(struct dc_bios *dcb)
157 {
158           struct bios_parser *bp = BP_FROM_DCB(dcb);
159           unsigned int count = 0;
160           unsigned int i;
161 
162           for (i = 0; i < bp->object_info_tbl.v1_4->number_of_path; i++) {
163                     if (bp->object_info_tbl.v1_4->display_path[i].encoderobjid != 0)
164                               count++;
165           }
166           return count;
167 }
168 
bios_parser_get_encoder_id(struct dc_bios * dcb,uint32_t i)169 static struct graphics_object_id bios_parser_get_encoder_id(
170           struct dc_bios *dcb,
171           uint32_t i)
172 {
173           struct bios_parser *bp = BP_FROM_DCB(dcb);
174           struct graphics_object_id object_id = dal_graphics_object_id_init(
175                     0, ENUM_ID_UNKNOWN, OBJECT_TYPE_UNKNOWN);
176 
177           if (bp->object_info_tbl.v1_4->number_of_path > i)
178                     object_id = object_id_from_bios_object_id(
179                     bp->object_info_tbl.v1_4->display_path[i].encoderobjid);
180 
181           return object_id;
182 }
183 
bios_parser_get_connector_id(struct dc_bios * dcb,uint8_t i)184 static struct graphics_object_id bios_parser_get_connector_id(
185           struct dc_bios *dcb,
186           uint8_t i)
187 {
188           struct bios_parser *bp = BP_FROM_DCB(dcb);
189           struct graphics_object_id object_id = dal_graphics_object_id_init(
190                     0, ENUM_ID_UNKNOWN, OBJECT_TYPE_UNKNOWN);
191           struct object_info_table *tbl = &bp->object_info_tbl;
192           struct display_object_info_table_v1_4 *v1_4 = tbl->v1_4;
193 
194           if (v1_4->number_of_path > i) {
195                     /* If display_objid is generic object id,  the encoderObj
196                      * /extencoderobjId should be 0
197                      */
198                     if (v1_4->display_path[i].encoderobjid != 0 &&
199                                         v1_4->display_path[i].display_objid != 0)
200                               object_id = object_id_from_bios_object_id(
201                                                   v1_4->display_path[i].display_objid);
202           }
203 
204           return object_id;
205 }
206 
207 
208 /*  TODO:  GetNumberOfSrc*/
209 
bios_parser_get_dst_number(struct dc_bios * dcb,struct graphics_object_id id)210 static uint32_t bios_parser_get_dst_number(struct dc_bios *dcb,
211           struct graphics_object_id id)
212 {
213           /* connector has 1 Dest, encoder has 0 Dest */
214           switch (id.type) {
215           case OBJECT_TYPE_ENCODER:
216                     return 0;
217           case OBJECT_TYPE_CONNECTOR:
218                     return 1;
219           default:
220                     return 0;
221           }
222 }
223 
224 /*  removed getSrcObjList, getDestObjList*/
225 
226 
bios_parser_get_src_obj(struct dc_bios * dcb,struct graphics_object_id object_id,uint32_t index,struct graphics_object_id * src_object_id)227 static enum bp_result bios_parser_get_src_obj(struct dc_bios *dcb,
228           struct graphics_object_id object_id, uint32_t index,
229           struct graphics_object_id *src_object_id)
230 {
231           struct bios_parser *bp = BP_FROM_DCB(dcb);
232           unsigned int i;
233           enum bp_result  bp_result = BP_RESULT_BADINPUT;
234           struct graphics_object_id obj_id = {0};
235           struct object_info_table *tbl = &bp->object_info_tbl;
236 
237           if (!src_object_id)
238                     return bp_result;
239 
240           switch (object_id.type) {
241           /* Encoder's Source is GPU.  BIOS does not provide GPU, since all
242            * displaypaths point to same GPU (0x1100).  Hardcode GPU object type
243            */
244           case OBJECT_TYPE_ENCODER:
245                     /* TODO: since num of src must be less than 2.
246                      * If found in for loop, should break.
247                      * DAL2 implementation may be changed too
248                      */
249                     for (i = 0; i < tbl->v1_4->number_of_path; i++) {
250                               obj_id = object_id_from_bios_object_id(
251                               tbl->v1_4->display_path[i].encoderobjid);
252                               if (object_id.type == obj_id.type &&
253                                                   object_id.id == obj_id.id &&
254                                                             object_id.enum_id ==
255                                                                       obj_id.enum_id) {
256                                         *src_object_id =
257                                         object_id_from_bios_object_id(0x1100);
258                                         /* break; */
259                               }
260                     }
261                     bp_result = BP_RESULT_OK;
262                     break;
263           case OBJECT_TYPE_CONNECTOR:
264                     for (i = 0; i < tbl->v1_4->number_of_path; i++) {
265                               obj_id = object_id_from_bios_object_id(
266                                         tbl->v1_4->display_path[i].display_objid);
267 
268                               if (object_id.type == obj_id.type &&
269                                         object_id.id == obj_id.id &&
270                                                   object_id.enum_id == obj_id.enum_id) {
271                                         *src_object_id =
272                                         object_id_from_bios_object_id(
273                                         tbl->v1_4->display_path[i].encoderobjid);
274                                         /* break; */
275                               }
276                     }
277                     bp_result = BP_RESULT_OK;
278                     break;
279           default:
280                     break;
281           }
282 
283           return bp_result;
284 }
285 
bios_parser_get_dst_obj(struct dc_bios * dcb,struct graphics_object_id object_id,uint32_t index,struct graphics_object_id * dest_object_id)286 static enum bp_result bios_parser_get_dst_obj(struct dc_bios *dcb,
287           struct graphics_object_id object_id, uint32_t index,
288           struct graphics_object_id *dest_object_id)
289 {
290           struct bios_parser *bp = BP_FROM_DCB(dcb);
291           unsigned int i;
292           enum bp_result  bp_result = BP_RESULT_BADINPUT;
293           struct graphics_object_id obj_id = {0};
294           struct object_info_table *tbl = &bp->object_info_tbl;
295 
296           if (!dest_object_id)
297                     return BP_RESULT_BADINPUT;
298 
299           switch (object_id.type) {
300           case OBJECT_TYPE_ENCODER:
301                     /* TODO: since num of src must be less than 2.
302                      * If found in for loop, should break.
303                      * DAL2 implementation may be changed too
304                      */
305                     for (i = 0; i < tbl->v1_4->number_of_path; i++) {
306                               obj_id = object_id_from_bios_object_id(
307                                         tbl->v1_4->display_path[i].encoderobjid);
308                               if (object_id.type == obj_id.type &&
309                                                   object_id.id == obj_id.id &&
310                                                             object_id.enum_id ==
311                                                                       obj_id.enum_id) {
312                                         *dest_object_id =
313                                                   object_id_from_bios_object_id(
314                                         tbl->v1_4->display_path[i].display_objid);
315                                         /* break; */
316                               }
317                     }
318                     bp_result = BP_RESULT_OK;
319                     break;
320           default:
321                     break;
322           }
323 
324           return bp_result;
325 }
326 
327 
328 /* from graphics_object_id, find display path which includes the object_id */
get_bios_object(struct bios_parser * bp,struct graphics_object_id id)329 static struct atom_display_object_path_v2 *get_bios_object(
330           struct bios_parser *bp,
331           struct graphics_object_id id)
332 {
333           unsigned int i;
334           struct graphics_object_id obj_id = {0};
335 
336           switch (id.type) {
337           case OBJECT_TYPE_ENCODER:
338                     for (i = 0; i < bp->object_info_tbl.v1_4->number_of_path; i++) {
339                               obj_id = object_id_from_bios_object_id(
340                               bp->object_info_tbl.v1_4->display_path[i].encoderobjid);
341                               if (id.type == obj_id.type &&
342                                                   id.id == obj_id.id &&
343                                                             id.enum_id == obj_id.enum_id)
344                                         return
345                                         &bp->object_info_tbl.v1_4->display_path[i];
346                     }
347           case OBJECT_TYPE_CONNECTOR:
348           case OBJECT_TYPE_GENERIC:
349                     /* Both Generic and Connector Object ID
350                      * will be stored on display_objid
351                     */
352                     for (i = 0; i < bp->object_info_tbl.v1_4->number_of_path; i++) {
353                               obj_id = object_id_from_bios_object_id(
354                               bp->object_info_tbl.v1_4->display_path[i].display_objid
355                               );
356                               if (id.type == obj_id.type &&
357                                                   id.id == obj_id.id &&
358                                                             id.enum_id == obj_id.enum_id)
359                                         return
360                                         &bp->object_info_tbl.v1_4->display_path[i];
361                     }
362           default:
363                     return NULL;
364           }
365 }
366 
bios_parser_get_i2c_info(struct dc_bios * dcb,struct graphics_object_id id,struct graphics_object_i2c_info * info)367 static enum bp_result bios_parser_get_i2c_info(struct dc_bios *dcb,
368           struct graphics_object_id id,
369           struct graphics_object_i2c_info *info)
370 {
371           uint32_t offset;
372           struct atom_display_object_path_v2 *object;
373           struct atom_common_record_header *header;
374           struct atom_i2c_record *record;
375           struct bios_parser *bp = BP_FROM_DCB(dcb);
376 
377           if (!info)
378                     return BP_RESULT_BADINPUT;
379 
380           object = get_bios_object(bp, id);
381 
382           if (!object)
383                     return BP_RESULT_BADINPUT;
384 
385           offset = object->disp_recordoffset + bp->object_info_tbl_offset;
386 
387           for (;;) {
388                     header = GET_IMAGE(struct atom_common_record_header, offset);
389 
390                     if (!header)
391                               return BP_RESULT_BADBIOSTABLE;
392 
393                     if (header->record_type == LAST_RECORD_TYPE ||
394                               !header->record_size)
395                               break;
396 
397                     if (header->record_type == ATOM_I2C_RECORD_TYPE
398                               && sizeof(struct atom_i2c_record) <=
399                                                                       header->record_size) {
400                               /* get the I2C info */
401                               record = (struct atom_i2c_record *) header;
402 
403                               if (get_gpio_i2c_info(bp, record, info) ==
404                                                                                 BP_RESULT_OK)
405                                         return BP_RESULT_OK;
406                     }
407 
408                     offset += header->record_size;
409           }
410 
411           return BP_RESULT_NORECORD;
412 }
413 
get_gpio_i2c_info(struct bios_parser * bp,struct atom_i2c_record * record,struct graphics_object_i2c_info * info)414 static enum bp_result get_gpio_i2c_info(
415           struct bios_parser *bp,
416           struct atom_i2c_record *record,
417           struct graphics_object_i2c_info *info)
418 {
419           struct atom_gpio_pin_lut_v2_1 *header;
420           uint32_t count = 0;
421           unsigned int table_index = 0;
422 
423           if (!info)
424                     return BP_RESULT_BADINPUT;
425 
426           /* get the GPIO_I2C info */
427           if (!DATA_TABLES(gpio_pin_lut))
428                     return BP_RESULT_BADBIOSTABLE;
429 
430           header = GET_IMAGE(struct atom_gpio_pin_lut_v2_1,
431                                                   DATA_TABLES(gpio_pin_lut));
432           if (!header)
433                     return BP_RESULT_BADBIOSTABLE;
434 
435           if (sizeof(struct atom_common_table_header) +
436                               sizeof(struct atom_gpio_pin_assignment) >
437                               le16_to_cpu(header->table_header.structuresize))
438                     return BP_RESULT_BADBIOSTABLE;
439 
440           /* TODO: is version change? */
441           if (header->table_header.content_revision != 1)
442                     return BP_RESULT_UNSUPPORTED;
443 
444           /* get data count */
445           count = (le16_to_cpu(header->table_header.structuresize)
446                               - sizeof(struct atom_common_table_header))
447                                         / sizeof(struct atom_gpio_pin_assignment);
448 
449           table_index = record->i2c_id  & I2C_HW_LANE_MUX;
450 
451           if (count < table_index) {
452                     bool find_valid = false;
453 
454                     for (table_index = 0; table_index < count; table_index++) {
455                               if (((record->i2c_id & I2C_HW_CAP) == (
456                               header->gpio_pin[table_index].gpio_id &
457                                                                       I2C_HW_CAP)) &&
458                               ((record->i2c_id & I2C_HW_ENGINE_ID_MASK)  ==
459                               (header->gpio_pin[table_index].gpio_id &
460                                                             I2C_HW_ENGINE_ID_MASK)) &&
461                               ((record->i2c_id & I2C_HW_LANE_MUX) ==
462                               (header->gpio_pin[table_index].gpio_id &
463                                                                       I2C_HW_LANE_MUX))) {
464                                         /* still valid */
465                                         find_valid = true;
466                                         break;
467                               }
468                     }
469                     /* If we don't find the entry that we are looking for then
470                      *  we will return BP_Result_BadBiosTable.
471                      */
472                     if (find_valid == false)
473                               return BP_RESULT_BADBIOSTABLE;
474           }
475 
476           /* get the GPIO_I2C_INFO */
477           info->i2c_hw_assist = (record->i2c_id & I2C_HW_CAP) ? true : false;
478           info->i2c_line = record->i2c_id & I2C_HW_LANE_MUX;
479           info->i2c_engine_id = (record->i2c_id & I2C_HW_ENGINE_ID_MASK) >> 4;
480           info->i2c_slave_address = record->i2c_slave_addr;
481 
482           /* TODO: check how to get register offset for en, Y, etc. */
483           info->gpio_info.clk_a_register_index =
484                               le16_to_cpu(
485                               header->gpio_pin[table_index].data_a_reg_index);
486           info->gpio_info.clk_a_shift =
487                               header->gpio_pin[table_index].gpio_bitshift;
488 
489           return BP_RESULT_OK;
490 }
491 
get_voltage_ddc_info_v4(uint8_t * i2c_line,uint32_t index,struct atom_common_table_header * header,uint8_t * address)492 static enum bp_result get_voltage_ddc_info_v4(
493           uint8_t *i2c_line,
494           uint32_t index,
495           struct atom_common_table_header *header,
496           uint8_t *address)
497 {
498           enum bp_result result = BP_RESULT_NORECORD;
499           struct atom_voltage_objects_info_v4_1 *info =
500                     (struct atom_voltage_objects_info_v4_1 *) address;
501 
502           uint8_t *voltage_current_object =
503                     (uint8_t *) (&(info->voltage_object[0]));
504 
505           while ((address + le16_to_cpu(header->structuresize)) >
506                                                             voltage_current_object) {
507                     struct atom_i2c_voltage_object_v4 *object =
508                               (struct atom_i2c_voltage_object_v4 *)
509                                                             voltage_current_object;
510 
511                     if (object->header.voltage_mode ==
512                               ATOM_INIT_VOLTAGE_REGULATOR) {
513                               if (object->header.voltage_type == index) {
514                                         *i2c_line = object->i2c_id ^ 0x90;
515                                         result = BP_RESULT_OK;
516                                         break;
517                               }
518                     }
519 
520                     voltage_current_object +=
521                                         le16_to_cpu(object->header.object_size);
522           }
523           return result;
524 }
525 
bios_parser_get_thermal_ddc_info(struct dc_bios * dcb,uint32_t i2c_channel_id,struct graphics_object_i2c_info * info)526 static enum bp_result bios_parser_get_thermal_ddc_info(
527           struct dc_bios *dcb,
528           uint32_t i2c_channel_id,
529           struct graphics_object_i2c_info *info)
530 {
531           struct bios_parser *bp = BP_FROM_DCB(dcb);
532           struct i2c_id_config_access *config;
533           struct atom_i2c_record record;
534 
535           if (!info)
536                     return BP_RESULT_BADINPUT;
537 
538           config = (struct i2c_id_config_access *) &i2c_channel_id;
539 
540           record.i2c_id = config->bfHW_Capable;
541           record.i2c_id |= config->bfI2C_LineMux;
542           record.i2c_id |= config->bfHW_EngineID;
543 
544           return get_gpio_i2c_info(bp, &record, info);
545 }
546 
bios_parser_get_voltage_ddc_info(struct dc_bios * dcb,uint32_t index,struct graphics_object_i2c_info * info)547 static enum bp_result bios_parser_get_voltage_ddc_info(struct dc_bios *dcb,
548           uint32_t index,
549           struct graphics_object_i2c_info *info)
550 {
551           uint8_t i2c_line = 0;
552           enum bp_result result = BP_RESULT_NORECORD;
553           uint8_t *voltage_info_address;
554           struct atom_common_table_header *header;
555           struct atom_data_revision revision = {0};
556           struct bios_parser *bp = BP_FROM_DCB(dcb);
557 
558           if (!DATA_TABLES(voltageobject_info))
559                     return result;
560 
561           voltage_info_address = bios_get_image(&bp->base,
562                               DATA_TABLES(voltageobject_info),
563                               sizeof(struct atom_common_table_header));
564 
565           header = (struct atom_common_table_header *) voltage_info_address;
566 
567           get_atom_data_table_revision(header, &revision);
568 
569           switch (revision.major) {
570           case 4:
571                     if (revision.minor != 1)
572                               break;
573                     result = get_voltage_ddc_info_v4(&i2c_line, index, header,
574                               voltage_info_address);
575                     break;
576           }
577 
578           if (result == BP_RESULT_OK)
579                     result = bios_parser_get_thermal_ddc_info(dcb,
580                               i2c_line, info);
581 
582           return result;
583 }
584 
bios_parser_get_hpd_info(struct dc_bios * dcb,struct graphics_object_id id,struct graphics_object_hpd_info * info)585 static enum bp_result bios_parser_get_hpd_info(
586           struct dc_bios *dcb,
587           struct graphics_object_id id,
588           struct graphics_object_hpd_info *info)
589 {
590           struct bios_parser *bp = BP_FROM_DCB(dcb);
591           struct atom_display_object_path_v2 *object;
592           struct atom_hpd_int_record *record = NULL;
593 
594           if (!info)
595                     return BP_RESULT_BADINPUT;
596 
597           object = get_bios_object(bp, id);
598 
599           if (!object)
600                     return BP_RESULT_BADINPUT;
601 
602           record = get_hpd_record(bp, object);
603 
604           if (record != NULL) {
605                     info->hpd_int_gpio_uid = record->pin_id;
606                     info->hpd_active = record->plugin_pin_state;
607                     return BP_RESULT_OK;
608           }
609 
610           return BP_RESULT_NORECORD;
611 }
612 
get_hpd_record(struct bios_parser * bp,struct atom_display_object_path_v2 * object)613 static struct atom_hpd_int_record *get_hpd_record(
614           struct bios_parser *bp,
615           struct atom_display_object_path_v2 *object)
616 {
617           struct atom_common_record_header *header;
618           uint32_t offset;
619 
620           if (!object) {
621                     BREAK_TO_DEBUGGER(); /* Invalid object */
622                     return NULL;
623           }
624 
625           offset = le16_to_cpu(object->disp_recordoffset)
626                               + bp->object_info_tbl_offset;
627 
628           for (;;) {
629                     header = GET_IMAGE(struct atom_common_record_header, offset);
630 
631                     if (!header)
632                               return NULL;
633 
634                     if (header->record_type == LAST_RECORD_TYPE ||
635                               !header->record_size)
636                               break;
637 
638                     if (header->record_type == ATOM_HPD_INT_RECORD_TYPE
639                               && sizeof(struct atom_hpd_int_record) <=
640                                                                       header->record_size)
641                               return (struct atom_hpd_int_record *) header;
642 
643                     offset += header->record_size;
644           }
645 
646           return NULL;
647 }
648 
649 /**
650  * bios_parser_get_gpio_pin_info
651  * Get GpioPin information of input gpio id
652  *
653  * @param gpio_id, GPIO ID
654  * @param info, GpioPin information structure
655  * @return Bios parser result code
656  * @note
657  *  to get the GPIO PIN INFO, we need:
658  *  1. get the GPIO_ID from other object table, see GetHPDInfo()
659  *  2. in DATA_TABLE.GPIO_Pin_LUT, search all records,
660  *        to get the registerA  offset/mask
661  */
bios_parser_get_gpio_pin_info(struct dc_bios * dcb,uint32_t gpio_id,struct gpio_pin_info * info)662 static enum bp_result bios_parser_get_gpio_pin_info(
663           struct dc_bios *dcb,
664           uint32_t gpio_id,
665           struct gpio_pin_info *info)
666 {
667           struct bios_parser *bp = BP_FROM_DCB(dcb);
668           struct atom_gpio_pin_lut_v2_1 *header;
669           uint32_t count = 0;
670           uint32_t i = 0;
671 
672           if (!DATA_TABLES(gpio_pin_lut))
673                     return BP_RESULT_BADBIOSTABLE;
674 
675           header = GET_IMAGE(struct atom_gpio_pin_lut_v2_1,
676                                                             DATA_TABLES(gpio_pin_lut));
677           if (!header)
678                     return BP_RESULT_BADBIOSTABLE;
679 
680           if (sizeof(struct atom_common_table_header) +
681                               sizeof(struct atom_gpio_pin_assignment)
682                               > le16_to_cpu(header->table_header.structuresize))
683                     return BP_RESULT_BADBIOSTABLE;
684 
685           if (header->table_header.content_revision != 1)
686                     return BP_RESULT_UNSUPPORTED;
687 
688           /* Temporary hard code gpio pin info */
689 #if defined(FOR_SIMNOW_BOOT)
690           {
691                     struct  atom_gpio_pin_assignment  gpio_pin[8] = {
692                                         {0x5db5, 0, 0, 1, 0},
693                                         {0x5db5, 8, 8, 2, 0},
694                                         {0x5db5, 0x10, 0x10, 3, 0},
695                                         {0x5db5, 0x18, 0x14, 4, 0},
696                                         {0x5db5, 0x1A, 0x18, 5, 0},
697                                         {0x5db5, 0x1C, 0x1C, 6, 0},
698                     };
699 
700                     count = 6;
701                     memmove(header->gpio_pin, gpio_pin, sizeof(gpio_pin));
702           }
703 #else
704           count = (le16_to_cpu(header->table_header.structuresize)
705                               - sizeof(struct atom_common_table_header))
706                                         / sizeof(struct atom_gpio_pin_assignment);
707 #endif
708           for (i = 0; i < count; ++i) {
709                     if (header->gpio_pin[i].gpio_id != gpio_id)
710                               continue;
711 
712                     info->offset =
713                               (uint32_t) le16_to_cpu(
714                                                   header->gpio_pin[i].data_a_reg_index);
715                     info->offset_y = info->offset + 2;
716                     info->offset_en = info->offset + 1;
717                     info->offset_mask = info->offset - 1;
718 
719                     info->mask = (uint32_t) (1 <<
720                               header->gpio_pin[i].gpio_bitshift);
721                     info->mask_y = info->mask + 2;
722                     info->mask_en = info->mask + 1;
723                     info->mask_mask = info->mask - 1;
724 
725                     return BP_RESULT_OK;
726           }
727 
728           return BP_RESULT_NORECORD;
729 }
730 
device_type_from_device_id(uint16_t device_id)731 static struct device_id device_type_from_device_id(uint16_t device_id)
732 {
733 
734           struct device_id result_device_id;
735 
736           result_device_id.raw_device_tag = device_id;
737 
738           switch (device_id) {
739           case ATOM_DISPLAY_LCD1_SUPPORT:
740                     result_device_id.device_type = DEVICE_TYPE_LCD;
741                     result_device_id.enum_id = 1;
742                     break;
743 
744           case ATOM_DISPLAY_DFP1_SUPPORT:
745                     result_device_id.device_type = DEVICE_TYPE_DFP;
746                     result_device_id.enum_id = 1;
747                     break;
748 
749           case ATOM_DISPLAY_DFP2_SUPPORT:
750                     result_device_id.device_type = DEVICE_TYPE_DFP;
751                     result_device_id.enum_id = 2;
752                     break;
753 
754           case ATOM_DISPLAY_DFP3_SUPPORT:
755                     result_device_id.device_type = DEVICE_TYPE_DFP;
756                     result_device_id.enum_id = 3;
757                     break;
758 
759           case ATOM_DISPLAY_DFP4_SUPPORT:
760                     result_device_id.device_type = DEVICE_TYPE_DFP;
761                     result_device_id.enum_id = 4;
762                     break;
763 
764           case ATOM_DISPLAY_DFP5_SUPPORT:
765                     result_device_id.device_type = DEVICE_TYPE_DFP;
766                     result_device_id.enum_id = 5;
767                     break;
768 
769           case ATOM_DISPLAY_DFP6_SUPPORT:
770                     result_device_id.device_type = DEVICE_TYPE_DFP;
771                     result_device_id.enum_id = 6;
772                     break;
773 
774           default:
775                     BREAK_TO_DEBUGGER(); /* Invalid device Id */
776                     result_device_id.device_type = DEVICE_TYPE_UNKNOWN;
777                     result_device_id.enum_id = 0;
778           }
779           return result_device_id;
780 }
781 
bios_parser_get_device_tag(struct dc_bios * dcb,struct graphics_object_id connector_object_id,uint32_t device_tag_index,struct connector_device_tag_info * info)782 static enum bp_result bios_parser_get_device_tag(
783           struct dc_bios *dcb,
784           struct graphics_object_id connector_object_id,
785           uint32_t device_tag_index,
786           struct connector_device_tag_info *info)
787 {
788           struct bios_parser *bp = BP_FROM_DCB(dcb);
789           struct atom_display_object_path_v2 *object;
790 
791           if (!info)
792                     return BP_RESULT_BADINPUT;
793 
794           /* getBiosObject will return MXM object */
795           object = get_bios_object(bp, connector_object_id);
796 
797           if (!object) {
798                     BREAK_TO_DEBUGGER(); /* Invalid object id */
799                     return BP_RESULT_BADINPUT;
800           }
801 
802           info->acpi_device = 0; /* BIOS no longer provides this */
803           info->dev_id = device_type_from_device_id(object->device_tag);
804 
805           return BP_RESULT_OK;
806 }
807 
get_ss_info_v4_1(struct bios_parser * bp,uint32_t id,uint32_t index,struct spread_spectrum_info * ss_info)808 static enum bp_result get_ss_info_v4_1(
809           struct bios_parser *bp,
810           uint32_t id,
811           uint32_t index,
812           struct spread_spectrum_info *ss_info)
813 {
814           enum bp_result result = BP_RESULT_OK;
815           struct atom_display_controller_info_v4_1 *disp_cntl_tbl = NULL;
816 
817           if (!ss_info)
818                     return BP_RESULT_BADINPUT;
819 
820           if (!DATA_TABLES(dce_info))
821                     return BP_RESULT_BADBIOSTABLE;
822 
823           disp_cntl_tbl =  GET_IMAGE(struct atom_display_controller_info_v4_1,
824                                                                       DATA_TABLES(dce_info));
825           if (!disp_cntl_tbl)
826                     return BP_RESULT_BADBIOSTABLE;
827 
828           ss_info->type.STEP_AND_DELAY_INFO = false;
829           ss_info->spread_percentage_divider = 1000;
830           /* BIOS no longer uses target clock.  Always enable for now */
831           ss_info->target_clock_range = 0xffffffff;
832 
833           switch (id) {
834           case AS_SIGNAL_TYPE_DVI:
835                     ss_info->spread_spectrum_percentage =
836                                         disp_cntl_tbl->dvi_ss_percentage;
837                     ss_info->spread_spectrum_range =
838                                         disp_cntl_tbl->dvi_ss_rate_10hz * 10;
839                     if (disp_cntl_tbl->dvi_ss_mode & ATOM_SS_CENTRE_SPREAD_MODE)
840                               ss_info->type.CENTER_MODE = true;
841                     break;
842           case AS_SIGNAL_TYPE_HDMI:
843                     ss_info->spread_spectrum_percentage =
844                                         disp_cntl_tbl->hdmi_ss_percentage;
845                     ss_info->spread_spectrum_range =
846                                         disp_cntl_tbl->hdmi_ss_rate_10hz * 10;
847                     if (disp_cntl_tbl->hdmi_ss_mode & ATOM_SS_CENTRE_SPREAD_MODE)
848                               ss_info->type.CENTER_MODE = true;
849                     break;
850           /* TODO LVDS not support anymore? */
851           case AS_SIGNAL_TYPE_DISPLAY_PORT:
852                     ss_info->spread_spectrum_percentage =
853                                         disp_cntl_tbl->dp_ss_percentage;
854                     ss_info->spread_spectrum_range =
855                                         disp_cntl_tbl->dp_ss_rate_10hz * 10;
856                     if (disp_cntl_tbl->dp_ss_mode & ATOM_SS_CENTRE_SPREAD_MODE)
857                               ss_info->type.CENTER_MODE = true;
858                     break;
859           case AS_SIGNAL_TYPE_GPU_PLL:
860                     /* atom_firmware: DAL only get data from dce_info table.
861                      * if data within smu_info is needed for DAL, VBIOS should
862                      * copy it into dce_info
863                      */
864                     result = BP_RESULT_UNSUPPORTED;
865                     break;
866           default:
867                     result = BP_RESULT_UNSUPPORTED;
868           }
869 
870           return result;
871 }
872 
get_ss_info_v4_2(struct bios_parser * bp,uint32_t id,uint32_t index,struct spread_spectrum_info * ss_info)873 static enum bp_result get_ss_info_v4_2(
874           struct bios_parser *bp,
875           uint32_t id,
876           uint32_t index,
877           struct spread_spectrum_info *ss_info)
878 {
879           enum bp_result result = BP_RESULT_OK;
880           struct atom_display_controller_info_v4_2 *disp_cntl_tbl = NULL;
881           struct atom_smu_info_v3_1 *smu_info = NULL;
882 
883           if (!ss_info)
884                     return BP_RESULT_BADINPUT;
885 
886           if (!DATA_TABLES(dce_info))
887                     return BP_RESULT_BADBIOSTABLE;
888 
889           if (!DATA_TABLES(smu_info))
890                     return BP_RESULT_BADBIOSTABLE;
891 
892           disp_cntl_tbl =  GET_IMAGE(struct atom_display_controller_info_v4_2,
893                                                                       DATA_TABLES(dce_info));
894           if (!disp_cntl_tbl)
895                     return BP_RESULT_BADBIOSTABLE;
896 
897           smu_info =  GET_IMAGE(struct atom_smu_info_v3_1, DATA_TABLES(smu_info));
898           if (!smu_info)
899                     return BP_RESULT_BADBIOSTABLE;
900 
901           ss_info->type.STEP_AND_DELAY_INFO = false;
902           ss_info->spread_percentage_divider = 1000;
903           /* BIOS no longer uses target clock.  Always enable for now */
904           ss_info->target_clock_range = 0xffffffff;
905 
906           switch (id) {
907           case AS_SIGNAL_TYPE_DVI:
908                     ss_info->spread_spectrum_percentage =
909                                         disp_cntl_tbl->dvi_ss_percentage;
910                     ss_info->spread_spectrum_range =
911                                         disp_cntl_tbl->dvi_ss_rate_10hz * 10;
912                     if (disp_cntl_tbl->dvi_ss_mode & ATOM_SS_CENTRE_SPREAD_MODE)
913                               ss_info->type.CENTER_MODE = true;
914                     break;
915           case AS_SIGNAL_TYPE_HDMI:
916                     ss_info->spread_spectrum_percentage =
917                                         disp_cntl_tbl->hdmi_ss_percentage;
918                     ss_info->spread_spectrum_range =
919                                         disp_cntl_tbl->hdmi_ss_rate_10hz * 10;
920                     if (disp_cntl_tbl->hdmi_ss_mode & ATOM_SS_CENTRE_SPREAD_MODE)
921                               ss_info->type.CENTER_MODE = true;
922                     break;
923           /* TODO LVDS not support anymore? */
924           case AS_SIGNAL_TYPE_DISPLAY_PORT:
925                     ss_info->spread_spectrum_percentage =
926                                         smu_info->gpuclk_ss_percentage;
927                     ss_info->spread_spectrum_range =
928                                         smu_info->gpuclk_ss_rate_10hz * 10;
929                     if (smu_info->gpuclk_ss_mode & ATOM_SS_CENTRE_SPREAD_MODE)
930                               ss_info->type.CENTER_MODE = true;
931                     break;
932           case AS_SIGNAL_TYPE_GPU_PLL:
933                     /* atom_firmware: DAL only get data from dce_info table.
934                      * if data within smu_info is needed for DAL, VBIOS should
935                      * copy it into dce_info
936                      */
937                     result = BP_RESULT_UNSUPPORTED;
938                     break;
939           default:
940                     result = BP_RESULT_UNSUPPORTED;
941           }
942 
943           return result;
944 }
945 
946 /**
947  * bios_parser_get_spread_spectrum_info
948  * Get spread spectrum information from the ASIC_InternalSS_Info(ver 2.1 or
949  * ver 3.1) or SS_Info table from the VBIOS. Currently ASIC_InternalSS_Info
950  * ver 2.1 can co-exist with SS_Info table. Expect ASIC_InternalSS_Info
951  * ver 3.1,
952  * there is only one entry for each signal /ss id.  However, there is
953  * no planning of supporting multiple spread Sprectum entry for EverGreen
954  * @param [in] this
955  * @param [in] signal, ASSignalType to be converted to info index
956  * @param [in] index, number of entries that match the converted info index
957  * @param [out] ss_info, sprectrum information structure,
958  * @return Bios parser result code
959  */
bios_parser_get_spread_spectrum_info(struct dc_bios * dcb,enum as_signal_type signal,uint32_t index,struct spread_spectrum_info * ss_info)960 static enum bp_result bios_parser_get_spread_spectrum_info(
961           struct dc_bios *dcb,
962           enum as_signal_type signal,
963           uint32_t index,
964           struct spread_spectrum_info *ss_info)
965 {
966           struct bios_parser *bp = BP_FROM_DCB(dcb);
967           enum bp_result result = BP_RESULT_UNSUPPORTED;
968           struct atom_common_table_header *header;
969           struct atom_data_revision tbl_revision;
970 
971           if (!ss_info) /* check for bad input */
972                     return BP_RESULT_BADINPUT;
973 
974           if (!DATA_TABLES(dce_info))
975                     return BP_RESULT_UNSUPPORTED;
976 
977           header = GET_IMAGE(struct atom_common_table_header,
978                                                             DATA_TABLES(dce_info));
979           get_atom_data_table_revision(header, &tbl_revision);
980 
981           switch (tbl_revision.major) {
982           case 4:
983                     switch (tbl_revision.minor) {
984                     case 1:
985                               return get_ss_info_v4_1(bp, signal, index, ss_info);
986                     case 2:
987                               return get_ss_info_v4_2(bp, signal, index, ss_info);
988                     default:
989                               break;
990                     }
991                     break;
992           default:
993                     break;
994           }
995           /* there can not be more then one entry for SS Info table */
996           return result;
997 }
998 
get_embedded_panel_info_v2_1(struct bios_parser * bp,struct embedded_panel_info * info)999 static enum bp_result get_embedded_panel_info_v2_1(
1000           struct bios_parser *bp,
1001           struct embedded_panel_info *info)
1002 {
1003           struct lcd_info_v2_1 *lvds;
1004 
1005           if (!info)
1006                     return BP_RESULT_BADINPUT;
1007 
1008           if (!DATA_TABLES(lcd_info))
1009                     return BP_RESULT_UNSUPPORTED;
1010 
1011           lvds = GET_IMAGE(struct lcd_info_v2_1, DATA_TABLES(lcd_info));
1012 
1013           if (!lvds)
1014                     return BP_RESULT_BADBIOSTABLE;
1015 
1016           /* TODO: previous vv1_3, should v2_1 */
1017           if (!((lvds->table_header.format_revision == 2)
1018                               && (lvds->table_header.content_revision >= 1)))
1019                     return BP_RESULT_UNSUPPORTED;
1020 
1021           memset(info, 0, sizeof(struct embedded_panel_info));
1022 
1023           /* We need to convert from 10KHz units into KHz units */
1024           info->lcd_timing.pixel_clk =
1025                               le16_to_cpu(lvds->lcd_timing.pixclk) * 10;
1026           /* usHActive does not include borders, according to VBIOS team */
1027           info->lcd_timing.horizontal_addressable =
1028                               le16_to_cpu(lvds->lcd_timing.h_active);
1029           /* usHBlanking_Time includes borders, so we should really be
1030            * subtractingborders duing this translation, but LVDS generally
1031            * doesn't have borders, so we should be okay leaving this as is for
1032            * now.  May need to revisit if we ever have LVDS with borders
1033            */
1034           info->lcd_timing.horizontal_blanking_time =
1035                     le16_to_cpu(lvds->lcd_timing.h_blanking_time);
1036           /* usVActive does not include borders, according to VBIOS team*/
1037           info->lcd_timing.vertical_addressable =
1038                     le16_to_cpu(lvds->lcd_timing.v_active);
1039           /* usVBlanking_Time includes borders, so we should really be
1040            * subtracting borders duing this translation, but LVDS generally
1041            * doesn't have borders, so we should be okay leaving this as is for
1042            * now. May need to revisit if we ever have LVDS with borders
1043            */
1044           info->lcd_timing.vertical_blanking_time =
1045                     le16_to_cpu(lvds->lcd_timing.v_blanking_time);
1046           info->lcd_timing.horizontal_sync_offset =
1047                     le16_to_cpu(lvds->lcd_timing.h_sync_offset);
1048           info->lcd_timing.horizontal_sync_width =
1049                     le16_to_cpu(lvds->lcd_timing.h_sync_width);
1050           info->lcd_timing.vertical_sync_offset =
1051                     le16_to_cpu(lvds->lcd_timing.v_sync_offset);
1052           info->lcd_timing.vertical_sync_width =
1053                     le16_to_cpu(lvds->lcd_timing.v_syncwidth);
1054           info->lcd_timing.horizontal_border = lvds->lcd_timing.h_border;
1055           info->lcd_timing.vertical_border = lvds->lcd_timing.v_border;
1056 
1057           /* not provided by VBIOS */
1058           info->lcd_timing.misc_info.HORIZONTAL_CUT_OFF = 0;
1059 
1060           info->lcd_timing.misc_info.H_SYNC_POLARITY =
1061                     ~(uint32_t)
1062                     (lvds->lcd_timing.miscinfo & ATOM_HSYNC_POLARITY);
1063           info->lcd_timing.misc_info.V_SYNC_POLARITY =
1064                     ~(uint32_t)
1065                     (lvds->lcd_timing.miscinfo & ATOM_VSYNC_POLARITY);
1066 
1067           /* not provided by VBIOS */
1068           info->lcd_timing.misc_info.VERTICAL_CUT_OFF = 0;
1069 
1070           info->lcd_timing.misc_info.H_REPLICATION_BY2 =
1071                     !!(lvds->lcd_timing.miscinfo & ATOM_H_REPLICATIONBY2);
1072           info->lcd_timing.misc_info.V_REPLICATION_BY2 =
1073                     !!(lvds->lcd_timing.miscinfo & ATOM_V_REPLICATIONBY2);
1074           info->lcd_timing.misc_info.COMPOSITE_SYNC =
1075                     !!(lvds->lcd_timing.miscinfo & ATOM_COMPOSITESYNC);
1076           info->lcd_timing.misc_info.INTERLACE =
1077                     !!(lvds->lcd_timing.miscinfo & ATOM_INTERLACE);
1078 
1079           /* not provided by VBIOS*/
1080           info->lcd_timing.misc_info.DOUBLE_CLOCK = 0;
1081           /* not provided by VBIOS*/
1082           info->ss_id = 0;
1083 
1084           info->realtek_eDPToLVDS =
1085                               !!(lvds->dplvdsrxid == eDP_TO_LVDS_REALTEK_ID);
1086 
1087           return BP_RESULT_OK;
1088 }
1089 
bios_parser_get_embedded_panel_info(struct dc_bios * dcb,struct embedded_panel_info * info)1090 static enum bp_result bios_parser_get_embedded_panel_info(
1091           struct dc_bios *dcb,
1092           struct embedded_panel_info *info)
1093 {
1094           struct bios_parser *bp = BP_FROM_DCB(dcb);
1095           struct atom_common_table_header *header;
1096           struct atom_data_revision tbl_revision;
1097 
1098           if (!DATA_TABLES(lcd_info))
1099                     return BP_RESULT_FAILURE;
1100 
1101           header = GET_IMAGE(struct atom_common_table_header,
1102                                                   DATA_TABLES(lcd_info));
1103 
1104           if (!header)
1105                     return BP_RESULT_BADBIOSTABLE;
1106 
1107           get_atom_data_table_revision(header, &tbl_revision);
1108 
1109 
1110           switch (tbl_revision.major) {
1111           case 2:
1112                     switch (tbl_revision.minor) {
1113                     case 1:
1114                               return get_embedded_panel_info_v2_1(bp, info);
1115                     default:
1116                               break;
1117                     }
1118           default:
1119                     break;
1120           }
1121 
1122           return BP_RESULT_FAILURE;
1123 }
1124 
get_support_mask_for_device_id(struct device_id device_id)1125 static uint32_t get_support_mask_for_device_id(struct device_id device_id)
1126 {
1127           enum dal_device_type device_type = device_id.device_type;
1128           uint32_t enum_id = device_id.enum_id;
1129 
1130           switch (device_type) {
1131           case DEVICE_TYPE_LCD:
1132                     switch (enum_id) {
1133                     case 1:
1134                               return ATOM_DISPLAY_LCD1_SUPPORT;
1135                     default:
1136                               break;
1137                     }
1138                     break;
1139           case DEVICE_TYPE_DFP:
1140                     switch (enum_id) {
1141                     case 1:
1142                               return ATOM_DISPLAY_DFP1_SUPPORT;
1143                     case 2:
1144                               return ATOM_DISPLAY_DFP2_SUPPORT;
1145                     case 3:
1146                               return ATOM_DISPLAY_DFP3_SUPPORT;
1147                     case 4:
1148                               return ATOM_DISPLAY_DFP4_SUPPORT;
1149                     case 5:
1150                               return ATOM_DISPLAY_DFP5_SUPPORT;
1151                     case 6:
1152                               return ATOM_DISPLAY_DFP6_SUPPORT;
1153                     default:
1154                               break;
1155                     }
1156                     break;
1157           default:
1158                     break;
1159           };
1160 
1161           /* Unidentified device ID, return empty support mask. */
1162           return 0;
1163 }
1164 
bios_parser_is_device_id_supported(struct dc_bios * dcb,struct device_id id)1165 static bool bios_parser_is_device_id_supported(
1166           struct dc_bios *dcb,
1167           struct device_id id)
1168 {
1169           struct bios_parser *bp = BP_FROM_DCB(dcb);
1170 
1171           uint32_t mask = get_support_mask_for_device_id(id);
1172 
1173           return (le16_to_cpu(bp->object_info_tbl.v1_4->supporteddevices) &
1174                                                                                 mask) != 0;
1175 }
1176 
bios_parser_post_init(struct dc_bios * dcb)1177 static void bios_parser_post_init(
1178           struct dc_bios *dcb)
1179 {
1180           /* TODO for OPM module. Need implement later */
1181 }
1182 
bios_parser_get_ss_entry_number(struct dc_bios * dcb,enum as_signal_type signal)1183 static uint32_t bios_parser_get_ss_entry_number(
1184           struct dc_bios *dcb,
1185           enum as_signal_type signal)
1186 {
1187           /* TODO: DAL2 atomfirmware implementation does not need this.
1188            * why DAL3 need this?
1189            */
1190           return 1;
1191 }
1192 
bios_parser_transmitter_control(struct dc_bios * dcb,struct bp_transmitter_control * cntl)1193 static enum bp_result bios_parser_transmitter_control(
1194           struct dc_bios *dcb,
1195           struct bp_transmitter_control *cntl)
1196 {
1197           struct bios_parser *bp = BP_FROM_DCB(dcb);
1198 
1199           if (!bp->cmd_tbl.transmitter_control)
1200                     return BP_RESULT_FAILURE;
1201 
1202           return bp->cmd_tbl.transmitter_control(bp, cntl);
1203 }
1204 
bios_parser_encoder_control(struct dc_bios * dcb,struct bp_encoder_control * cntl)1205 static enum bp_result bios_parser_encoder_control(
1206           struct dc_bios *dcb,
1207           struct bp_encoder_control *cntl)
1208 {
1209           struct bios_parser *bp = BP_FROM_DCB(dcb);
1210 
1211           if (!bp->cmd_tbl.dig_encoder_control)
1212                     return BP_RESULT_FAILURE;
1213 
1214           return bp->cmd_tbl.dig_encoder_control(bp, cntl);
1215 }
1216 
bios_parser_set_pixel_clock(struct dc_bios * dcb,struct bp_pixel_clock_parameters * bp_params)1217 static enum bp_result bios_parser_set_pixel_clock(
1218           struct dc_bios *dcb,
1219           struct bp_pixel_clock_parameters *bp_params)
1220 {
1221           struct bios_parser *bp = BP_FROM_DCB(dcb);
1222 
1223           if (!bp->cmd_tbl.set_pixel_clock)
1224                     return BP_RESULT_FAILURE;
1225 
1226           return bp->cmd_tbl.set_pixel_clock(bp, bp_params);
1227 }
1228 
bios_parser_set_dce_clock(struct dc_bios * dcb,struct bp_set_dce_clock_parameters * bp_params)1229 static enum bp_result bios_parser_set_dce_clock(
1230           struct dc_bios *dcb,
1231           struct bp_set_dce_clock_parameters *bp_params)
1232 {
1233           struct bios_parser *bp = BP_FROM_DCB(dcb);
1234 
1235           if (!bp->cmd_tbl.set_dce_clock)
1236                     return BP_RESULT_FAILURE;
1237 
1238           return bp->cmd_tbl.set_dce_clock(bp, bp_params);
1239 }
1240 
bios_parser_get_smu_clock_info(struct dc_bios * dcb)1241 static unsigned int bios_parser_get_smu_clock_info(
1242           struct dc_bios *dcb)
1243 {
1244           struct bios_parser *bp = BP_FROM_DCB(dcb);
1245 
1246           if (!bp->cmd_tbl.get_smu_clock_info)
1247                     return BP_RESULT_FAILURE;
1248 
1249           return bp->cmd_tbl.get_smu_clock_info(bp, 0);
1250 }
1251 
bios_parser_program_crtc_timing(struct dc_bios * dcb,struct bp_hw_crtc_timing_parameters * bp_params)1252 static enum bp_result bios_parser_program_crtc_timing(
1253           struct dc_bios *dcb,
1254           struct bp_hw_crtc_timing_parameters *bp_params)
1255 {
1256           struct bios_parser *bp = BP_FROM_DCB(dcb);
1257 
1258           if (!bp->cmd_tbl.set_crtc_timing)
1259                     return BP_RESULT_FAILURE;
1260 
1261           return bp->cmd_tbl.set_crtc_timing(bp, bp_params);
1262 }
1263 
bios_parser_enable_crtc(struct dc_bios * dcb,enum controller_id id,bool enable)1264 static enum bp_result bios_parser_enable_crtc(
1265           struct dc_bios *dcb,
1266           enum controller_id id,
1267           bool enable)
1268 {
1269           struct bios_parser *bp = BP_FROM_DCB(dcb);
1270 
1271           if (!bp->cmd_tbl.enable_crtc)
1272                     return BP_RESULT_FAILURE;
1273 
1274           return bp->cmd_tbl.enable_crtc(bp, id, enable);
1275 }
1276 
bios_parser_crtc_source_select(struct dc_bios * dcb,struct bp_crtc_source_select * bp_params)1277 static enum bp_result bios_parser_crtc_source_select(
1278           struct dc_bios *dcb,
1279           struct bp_crtc_source_select *bp_params)
1280 {
1281           struct bios_parser *bp = BP_FROM_DCB(dcb);
1282 
1283           if (!bp->cmd_tbl.select_crtc_source)
1284                     return BP_RESULT_FAILURE;
1285 
1286           return bp->cmd_tbl.select_crtc_source(bp, bp_params);
1287 }
1288 
bios_parser_enable_disp_power_gating(struct dc_bios * dcb,enum controller_id controller_id,enum bp_pipe_control_action action)1289 static enum bp_result bios_parser_enable_disp_power_gating(
1290           struct dc_bios *dcb,
1291           enum controller_id controller_id,
1292           enum bp_pipe_control_action action)
1293 {
1294           struct bios_parser *bp = BP_FROM_DCB(dcb);
1295 
1296           if (!bp->cmd_tbl.enable_disp_power_gating)
1297                     return BP_RESULT_FAILURE;
1298 
1299           return bp->cmd_tbl.enable_disp_power_gating(bp, controller_id,
1300                     action);
1301 }
1302 
bios_parser_is_accelerated_mode(struct dc_bios * dcb)1303 static bool bios_parser_is_accelerated_mode(
1304           struct dc_bios *dcb)
1305 {
1306           return bios_is_accelerated_mode(dcb);
1307 }
1308 
bios_parser_get_vga_enabled_displays(struct dc_bios * bios)1309 static uint32_t bios_parser_get_vga_enabled_displays(
1310           struct dc_bios *bios)
1311 {
1312           return bios_get_vga_enabled_displays(bios);
1313 }
1314 
1315 
1316 /**
1317  * bios_parser_set_scratch_critical_state
1318  *
1319  * @brief
1320  *  update critical state bit in VBIOS scratch register
1321  *
1322  * @param
1323  *  bool - to set or reset state
1324  */
bios_parser_set_scratch_critical_state(struct dc_bios * dcb,bool state)1325 static void bios_parser_set_scratch_critical_state(
1326           struct dc_bios *dcb,
1327           bool state)
1328 {
1329           bios_set_scratch_critical_state(dcb, state);
1330 }
1331 
bios_parser_get_firmware_info(struct dc_bios * dcb,struct dc_firmware_info * info)1332 static enum bp_result bios_parser_get_firmware_info(
1333           struct dc_bios *dcb,
1334           struct dc_firmware_info *info)
1335 {
1336           struct bios_parser *bp = BP_FROM_DCB(dcb);
1337           enum bp_result result = BP_RESULT_BADBIOSTABLE;
1338           struct atom_common_table_header *header;
1339 
1340           struct atom_data_revision revision;
1341 
1342           if (info && DATA_TABLES(firmwareinfo)) {
1343                     header = GET_IMAGE(struct atom_common_table_header,
1344                                         DATA_TABLES(firmwareinfo));
1345                     get_atom_data_table_revision(header, &revision);
1346                     switch (revision.major) {
1347                     case 3:
1348                               switch (revision.minor) {
1349                               case 1:
1350                                         result = get_firmware_info_v3_1(bp, info);
1351                                         break;
1352                               case 2:
1353                                         result = get_firmware_info_v3_2(bp, info);
1354                                         break;
1355                               case 3:
1356                                         result = get_firmware_info_v3_2(bp, info);
1357                                         break;
1358                               default:
1359                                         break;
1360                               }
1361                               break;
1362                     default:
1363                               break;
1364                     }
1365           }
1366 
1367           return result;
1368 }
1369 
get_firmware_info_v3_1(struct bios_parser * bp,struct dc_firmware_info * info)1370 static enum bp_result get_firmware_info_v3_1(
1371           struct bios_parser *bp,
1372           struct dc_firmware_info *info)
1373 {
1374           struct atom_firmware_info_v3_1 *firmware_info;
1375           struct atom_display_controller_info_v4_1 *dce_info = NULL;
1376 
1377           if (!info)
1378                     return BP_RESULT_BADINPUT;
1379 
1380           firmware_info = GET_IMAGE(struct atom_firmware_info_v3_1,
1381                               DATA_TABLES(firmwareinfo));
1382 
1383           dce_info = GET_IMAGE(struct atom_display_controller_info_v4_1,
1384                               DATA_TABLES(dce_info));
1385 
1386           if (!firmware_info || !dce_info)
1387                     return BP_RESULT_BADBIOSTABLE;
1388 
1389           memset(info, 0, sizeof(*info));
1390 
1391           /* Pixel clock pll information. */
1392            /* We need to convert from 10KHz units into KHz units */
1393           info->default_memory_clk = firmware_info->bootup_mclk_in10khz * 10;
1394           info->default_engine_clk = firmware_info->bootup_sclk_in10khz * 10;
1395 
1396            /* 27MHz for Vega10: */
1397           info->pll_info.crystal_frequency = dce_info->dce_refclk_10khz * 10;
1398 
1399           /* Hardcode frequency if BIOS gives no DCE Ref Clk */
1400           if (info->pll_info.crystal_frequency == 0)
1401                     info->pll_info.crystal_frequency = 27000;
1402           /*dp_phy_ref_clk is not correct for atom_display_controller_info_v4_2, but we don't use it*/
1403           info->dp_phy_ref_clk     = dce_info->dpphy_refclk_10khz * 10;
1404           info->i2c_engine_ref_clk = dce_info->i2c_engine_refclk_10khz * 10;
1405 
1406           /* Get GPU PLL VCO Clock */
1407 
1408           if (bp->cmd_tbl.get_smu_clock_info != NULL) {
1409                     /* VBIOS gives in 10KHz */
1410                     info->smu_gpu_pll_output_freq =
1411                                         bp->cmd_tbl.get_smu_clock_info(bp, SMU9_SYSPLL0_ID) * 10;
1412           }
1413 
1414           return BP_RESULT_OK;
1415 }
1416 
get_firmware_info_v3_2(struct bios_parser * bp,struct dc_firmware_info * info)1417 static enum bp_result get_firmware_info_v3_2(
1418           struct bios_parser *bp,
1419           struct dc_firmware_info *info)
1420 {
1421           struct atom_firmware_info_v3_2 *firmware_info;
1422           struct atom_display_controller_info_v4_1 *dce_info = NULL;
1423           struct atom_common_table_header *header;
1424           struct atom_data_revision revision;
1425           struct atom_smu_info_v3_2 *smu_info_v3_2 = NULL;
1426           struct atom_smu_info_v3_3 *smu_info_v3_3 = NULL;
1427 
1428           if (!info)
1429                     return BP_RESULT_BADINPUT;
1430 
1431           firmware_info = GET_IMAGE(struct atom_firmware_info_v3_2,
1432                               DATA_TABLES(firmwareinfo));
1433 
1434           dce_info = GET_IMAGE(struct atom_display_controller_info_v4_1,
1435                               DATA_TABLES(dce_info));
1436 
1437           if (!firmware_info || !dce_info)
1438                     return BP_RESULT_BADBIOSTABLE;
1439 
1440           memset(info, 0, sizeof(*info));
1441 
1442           header = GET_IMAGE(struct atom_common_table_header,
1443                                                   DATA_TABLES(smu_info));
1444           get_atom_data_table_revision(header, &revision);
1445 
1446           if (revision.minor == 2) {
1447                     /* Vega12 */
1448                     smu_info_v3_2 = GET_IMAGE(struct atom_smu_info_v3_2,
1449                                                                       DATA_TABLES(smu_info));
1450 
1451                     if (!smu_info_v3_2)
1452                               return BP_RESULT_BADBIOSTABLE;
1453 
1454                     info->default_engine_clk = smu_info_v3_2->bootup_dcefclk_10khz * 10;
1455           } else if (revision.minor == 3) {
1456                     /* Vega20 */
1457                     smu_info_v3_3 = GET_IMAGE(struct atom_smu_info_v3_3,
1458                                                                       DATA_TABLES(smu_info));
1459 
1460                     if (!smu_info_v3_3)
1461                               return BP_RESULT_BADBIOSTABLE;
1462 
1463                     info->default_engine_clk = smu_info_v3_3->bootup_dcefclk_10khz * 10;
1464           }
1465 
1466            // We need to convert from 10KHz units into KHz units.
1467           info->default_memory_clk = firmware_info->bootup_mclk_in10khz * 10;
1468 
1469            /* 27MHz for Vega10 & Vega12; 100MHz for Vega20 */
1470           info->pll_info.crystal_frequency = dce_info->dce_refclk_10khz * 10;
1471           /* Hardcode frequency if BIOS gives no DCE Ref Clk */
1472           if (info->pll_info.crystal_frequency == 0) {
1473                     if (revision.minor == 2)
1474                               info->pll_info.crystal_frequency = 27000;
1475                     else if (revision.minor == 3)
1476                               info->pll_info.crystal_frequency = 100000;
1477           }
1478           /*dp_phy_ref_clk is not correct for atom_display_controller_info_v4_2, but we don't use it*/
1479           info->dp_phy_ref_clk     = dce_info->dpphy_refclk_10khz * 10;
1480           info->i2c_engine_ref_clk = dce_info->i2c_engine_refclk_10khz * 10;
1481 
1482           /* Get GPU PLL VCO Clock */
1483           if (bp->cmd_tbl.get_smu_clock_info != NULL) {
1484                     if (revision.minor == 2)
1485                               info->smu_gpu_pll_output_freq =
1486                                                   bp->cmd_tbl.get_smu_clock_info(bp, SMU9_SYSPLL0_ID) * 10;
1487                     else if (revision.minor == 3)
1488                               info->smu_gpu_pll_output_freq =
1489                                                   bp->cmd_tbl.get_smu_clock_info(bp, SMU11_SYSPLL3_0_ID) * 10;
1490           }
1491 
1492           return BP_RESULT_OK;
1493 }
1494 
bios_parser_get_encoder_cap_info(struct dc_bios * dcb,struct graphics_object_id object_id,struct bp_encoder_cap_info * info)1495 static enum bp_result bios_parser_get_encoder_cap_info(
1496           struct dc_bios *dcb,
1497           struct graphics_object_id object_id,
1498           struct bp_encoder_cap_info *info)
1499 {
1500           struct bios_parser *bp = BP_FROM_DCB(dcb);
1501           struct atom_display_object_path_v2 *object;
1502           struct atom_encoder_caps_record *record = NULL;
1503 
1504           if (!info)
1505                     return BP_RESULT_BADINPUT;
1506 
1507           object = get_bios_object(bp, object_id);
1508 
1509           if (!object)
1510                     return BP_RESULT_BADINPUT;
1511 
1512           record = get_encoder_cap_record(bp, object);
1513           if (!record)
1514                     return BP_RESULT_NORECORD;
1515 
1516           info->DP_HBR2_CAP = (record->encodercaps &
1517                               ATOM_ENCODER_CAP_RECORD_HBR2) ? 1 : 0;
1518           info->DP_HBR2_EN = (record->encodercaps &
1519                               ATOM_ENCODER_CAP_RECORD_HBR2_EN) ? 1 : 0;
1520           info->DP_HBR3_EN = (record->encodercaps &
1521                               ATOM_ENCODER_CAP_RECORD_HBR3_EN) ? 1 : 0;
1522           info->HDMI_6GB_EN = (record->encodercaps &
1523                               ATOM_ENCODER_CAP_RECORD_HDMI6Gbps_EN) ? 1 : 0;
1524 
1525           return BP_RESULT_OK;
1526 }
1527 
1528 
get_encoder_cap_record(struct bios_parser * bp,struct atom_display_object_path_v2 * object)1529 static struct atom_encoder_caps_record *get_encoder_cap_record(
1530           struct bios_parser *bp,
1531           struct atom_display_object_path_v2 *object)
1532 {
1533           struct atom_common_record_header *header;
1534           uint32_t offset;
1535 
1536           if (!object) {
1537                     BREAK_TO_DEBUGGER(); /* Invalid object */
1538                     return NULL;
1539           }
1540 
1541           offset = object->encoder_recordoffset + bp->object_info_tbl_offset;
1542 
1543           for (;;) {
1544                     header = GET_IMAGE(struct atom_common_record_header, offset);
1545 
1546                     if (!header)
1547                               return NULL;
1548 
1549                     offset += header->record_size;
1550 
1551                     if (header->record_type == LAST_RECORD_TYPE ||
1552                                         !header->record_size)
1553                               break;
1554 
1555                     if (header->record_type != ATOM_ENCODER_CAP_RECORD_TYPE)
1556                               continue;
1557 
1558                     if (sizeof(struct atom_encoder_caps_record) <=
1559                                                                       header->record_size)
1560                               return (struct atom_encoder_caps_record *)header;
1561           }
1562 
1563           return NULL;
1564 }
1565 
1566 /*
1567  * get_integrated_info_v11
1568  *
1569  * @brief
1570  * Get V8 integrated BIOS information
1571  *
1572  * @param
1573  * bios_parser *bp - [in]BIOS parser handler to get master data table
1574  * integrated_info *info - [out] store and output integrated info
1575  *
1576  * @return
1577  * enum bp_result - BP_RESULT_OK if information is available,
1578  *                  BP_RESULT_BADBIOSTABLE otherwise.
1579  */
get_integrated_info_v11(struct bios_parser * bp,struct integrated_info * info)1580 static enum bp_result get_integrated_info_v11(
1581           struct bios_parser *bp,
1582           struct integrated_info *info)
1583 {
1584           struct atom_integrated_system_info_v1_11 *info_v11;
1585           uint32_t i;
1586 
1587           info_v11 = GET_IMAGE(struct atom_integrated_system_info_v1_11,
1588                                                   DATA_TABLES(integratedsysteminfo));
1589 
1590           if (info_v11 == NULL)
1591                     return BP_RESULT_BADBIOSTABLE;
1592 
1593           info->gpu_cap_info =
1594           le32_to_cpu(info_v11->gpucapinfo);
1595           /*
1596           * system_config: Bit[0] = 0 : PCIE power gating disabled
1597           *                       = 1 : PCIE power gating enabled
1598           *                Bit[1] = 0 : DDR-PLL shut down disabled
1599           *                       = 1 : DDR-PLL shut down enabled
1600           *                Bit[2] = 0 : DDR-PLL power down disabled
1601           *                       = 1 : DDR-PLL power down enabled
1602           */
1603           info->system_config = le32_to_cpu(info_v11->system_config);
1604           info->cpu_cap_info = le32_to_cpu(info_v11->cpucapinfo);
1605           info->memory_type = info_v11->memorytype;
1606           info->ma_channel_number = info_v11->umachannelnumber;
1607           info->lvds_ss_percentage =
1608           le16_to_cpu(info_v11->lvds_ss_percentage);
1609           info->lvds_sspread_rate_in_10hz =
1610           le16_to_cpu(info_v11->lvds_ss_rate_10hz);
1611           info->hdmi_ss_percentage =
1612           le16_to_cpu(info_v11->hdmi_ss_percentage);
1613           info->hdmi_sspread_rate_in_10hz =
1614           le16_to_cpu(info_v11->hdmi_ss_rate_10hz);
1615           info->dvi_ss_percentage =
1616           le16_to_cpu(info_v11->dvi_ss_percentage);
1617           info->dvi_sspread_rate_in_10_hz =
1618           le16_to_cpu(info_v11->dvi_ss_rate_10hz);
1619           info->lvds_misc = info_v11->lvds_misc;
1620           for (i = 0; i < NUMBER_OF_UCHAR_FOR_GUID; ++i) {
1621                     info->ext_disp_conn_info.gu_id[i] =
1622                                         info_v11->extdispconninfo.guid[i];
1623           }
1624 
1625           for (i = 0; i < MAX_NUMBER_OF_EXT_DISPLAY_PATH; ++i) {
1626                     info->ext_disp_conn_info.path[i].device_connector_id =
1627                     object_id_from_bios_object_id(
1628                     le16_to_cpu(info_v11->extdispconninfo.path[i].connectorobjid));
1629 
1630                     info->ext_disp_conn_info.path[i].ext_encoder_obj_id =
1631                     object_id_from_bios_object_id(
1632                               le16_to_cpu(
1633                               info_v11->extdispconninfo.path[i].ext_encoder_objid));
1634 
1635                     info->ext_disp_conn_info.path[i].device_tag =
1636                               le16_to_cpu(
1637                                         info_v11->extdispconninfo.path[i].device_tag);
1638                     info->ext_disp_conn_info.path[i].device_acpi_enum =
1639                     le16_to_cpu(
1640                               info_v11->extdispconninfo.path[i].device_acpi_enum);
1641                     info->ext_disp_conn_info.path[i].ext_aux_ddc_lut_index =
1642                               info_v11->extdispconninfo.path[i].auxddclut_index;
1643                     info->ext_disp_conn_info.path[i].ext_hpd_pin_lut_index =
1644                               info_v11->extdispconninfo.path[i].hpdlut_index;
1645                     info->ext_disp_conn_info.path[i].channel_mapping.raw =
1646                               info_v11->extdispconninfo.path[i].channelmapping;
1647                     info->ext_disp_conn_info.path[i].caps =
1648                                         le16_to_cpu(info_v11->extdispconninfo.path[i].caps);
1649           }
1650           info->ext_disp_conn_info.checksum =
1651           info_v11->extdispconninfo.checksum;
1652 
1653           info->dp0_ext_hdmi_slv_addr = info_v11->dp0_retimer_set.HdmiSlvAddr;
1654           info->dp0_ext_hdmi_reg_num = info_v11->dp0_retimer_set.HdmiRegNum;
1655           for (i = 0; i < info->dp0_ext_hdmi_reg_num; i++) {
1656                     info->dp0_ext_hdmi_reg_settings[i].i2c_reg_index =
1657                                         info_v11->dp0_retimer_set.HdmiRegSetting[i].ucI2cRegIndex;
1658                     info->dp0_ext_hdmi_reg_settings[i].i2c_reg_val =
1659                                         info_v11->dp0_retimer_set.HdmiRegSetting[i].ucI2cRegVal;
1660           }
1661           info->dp0_ext_hdmi_6g_reg_num = info_v11->dp0_retimer_set.Hdmi6GRegNum;
1662           for (i = 0; i < info->dp0_ext_hdmi_6g_reg_num; i++) {
1663                     info->dp0_ext_hdmi_6g_reg_settings[i].i2c_reg_index =
1664                                         info_v11->dp0_retimer_set.Hdmi6GhzRegSetting[i].ucI2cRegIndex;
1665                     info->dp0_ext_hdmi_6g_reg_settings[i].i2c_reg_val =
1666                                         info_v11->dp0_retimer_set.Hdmi6GhzRegSetting[i].ucI2cRegVal;
1667           }
1668 
1669           info->dp1_ext_hdmi_slv_addr = info_v11->dp1_retimer_set.HdmiSlvAddr;
1670           info->dp1_ext_hdmi_reg_num = info_v11->dp1_retimer_set.HdmiRegNum;
1671           for (i = 0; i < info->dp1_ext_hdmi_reg_num; i++) {
1672                     info->dp1_ext_hdmi_reg_settings[i].i2c_reg_index =
1673                                         info_v11->dp1_retimer_set.HdmiRegSetting[i].ucI2cRegIndex;
1674                     info->dp1_ext_hdmi_reg_settings[i].i2c_reg_val =
1675                                         info_v11->dp1_retimer_set.HdmiRegSetting[i].ucI2cRegVal;
1676           }
1677           info->dp1_ext_hdmi_6g_reg_num = info_v11->dp1_retimer_set.Hdmi6GRegNum;
1678           for (i = 0; i < info->dp1_ext_hdmi_6g_reg_num; i++) {
1679                     info->dp1_ext_hdmi_6g_reg_settings[i].i2c_reg_index =
1680                                         info_v11->dp1_retimer_set.Hdmi6GhzRegSetting[i].ucI2cRegIndex;
1681                     info->dp1_ext_hdmi_6g_reg_settings[i].i2c_reg_val =
1682                                         info_v11->dp1_retimer_set.Hdmi6GhzRegSetting[i].ucI2cRegVal;
1683           }
1684 
1685           info->dp2_ext_hdmi_slv_addr = info_v11->dp2_retimer_set.HdmiSlvAddr;
1686           info->dp2_ext_hdmi_reg_num = info_v11->dp2_retimer_set.HdmiRegNum;
1687           for (i = 0; i < info->dp2_ext_hdmi_reg_num; i++) {
1688                     info->dp2_ext_hdmi_reg_settings[i].i2c_reg_index =
1689                                         info_v11->dp2_retimer_set.HdmiRegSetting[i].ucI2cRegIndex;
1690                     info->dp2_ext_hdmi_reg_settings[i].i2c_reg_val =
1691                                         info_v11->dp2_retimer_set.HdmiRegSetting[i].ucI2cRegVal;
1692           }
1693           info->dp2_ext_hdmi_6g_reg_num = info_v11->dp2_retimer_set.Hdmi6GRegNum;
1694           for (i = 0; i < info->dp2_ext_hdmi_6g_reg_num; i++) {
1695                     info->dp2_ext_hdmi_6g_reg_settings[i].i2c_reg_index =
1696                                         info_v11->dp2_retimer_set.Hdmi6GhzRegSetting[i].ucI2cRegIndex;
1697                     info->dp2_ext_hdmi_6g_reg_settings[i].i2c_reg_val =
1698                                         info_v11->dp2_retimer_set.Hdmi6GhzRegSetting[i].ucI2cRegVal;
1699           }
1700 
1701           info->dp3_ext_hdmi_slv_addr = info_v11->dp3_retimer_set.HdmiSlvAddr;
1702           info->dp3_ext_hdmi_reg_num = info_v11->dp3_retimer_set.HdmiRegNum;
1703           for (i = 0; i < info->dp3_ext_hdmi_reg_num; i++) {
1704                     info->dp3_ext_hdmi_reg_settings[i].i2c_reg_index =
1705                                         info_v11->dp3_retimer_set.HdmiRegSetting[i].ucI2cRegIndex;
1706                     info->dp3_ext_hdmi_reg_settings[i].i2c_reg_val =
1707                                         info_v11->dp3_retimer_set.HdmiRegSetting[i].ucI2cRegVal;
1708           }
1709           info->dp3_ext_hdmi_6g_reg_num = info_v11->dp3_retimer_set.Hdmi6GRegNum;
1710           for (i = 0; i < info->dp3_ext_hdmi_6g_reg_num; i++) {
1711                     info->dp3_ext_hdmi_6g_reg_settings[i].i2c_reg_index =
1712                                         info_v11->dp3_retimer_set.Hdmi6GhzRegSetting[i].ucI2cRegIndex;
1713                     info->dp3_ext_hdmi_6g_reg_settings[i].i2c_reg_val =
1714                                         info_v11->dp3_retimer_set.Hdmi6GhzRegSetting[i].ucI2cRegVal;
1715           }
1716 
1717 
1718           /** TODO - review **/
1719           #if 0
1720           info->boot_up_engine_clock = le32_to_cpu(info_v11->ulBootUpEngineClock)
1721                                                                                           * 10;
1722           info->dentist_vco_freq = le32_to_cpu(info_v11->ulDentistVCOFreq) * 10;
1723           info->boot_up_uma_clock = le32_to_cpu(info_v8->ulBootUpUMAClock) * 10;
1724 
1725           for (i = 0; i < NUMBER_OF_DISP_CLK_VOLTAGE; ++i) {
1726                     /* Convert [10KHz] into [KHz] */
1727                     info->disp_clk_voltage[i].max_supported_clk =
1728                     le32_to_cpu(info_v11->sDISPCLK_Voltage[i].
1729                               ulMaximumSupportedCLK) * 10;
1730                     info->disp_clk_voltage[i].voltage_index =
1731                     le32_to_cpu(info_v11->sDISPCLK_Voltage[i].ulVoltageIndex);
1732           }
1733 
1734           info->boot_up_req_display_vector =
1735                               le32_to_cpu(info_v11->ulBootUpReqDisplayVector);
1736           info->boot_up_nb_voltage =
1737                               le16_to_cpu(info_v11->usBootUpNBVoltage);
1738           info->ext_disp_conn_info_offset =
1739                               le16_to_cpu(info_v11->usExtDispConnInfoOffset);
1740           info->gmc_restore_reset_time =
1741                               le32_to_cpu(info_v11->ulGMCRestoreResetTime);
1742           info->minimum_n_clk =
1743                               le32_to_cpu(info_v11->ulNbpStateNClkFreq[0]);
1744           for (i = 1; i < 4; ++i)
1745                     info->minimum_n_clk =
1746                                         info->minimum_n_clk <
1747                                         le32_to_cpu(info_v11->ulNbpStateNClkFreq[i]) ?
1748                                         info->minimum_n_clk : le32_to_cpu(
1749                                                   info_v11->ulNbpStateNClkFreq[i]);
1750 
1751           info->idle_n_clk = le32_to_cpu(info_v11->ulIdleNClk);
1752           info->ddr_dll_power_up_time =
1753               le32_to_cpu(info_v11->ulDDR_DLL_PowerUpTime);
1754           info->ddr_pll_power_up_time =
1755                     le32_to_cpu(info_v11->ulDDR_PLL_PowerUpTime);
1756           info->pcie_clk_ss_type = le16_to_cpu(info_v11->usPCIEClkSSType);
1757           info->max_lvds_pclk_freq_in_single_link =
1758                     le16_to_cpu(info_v11->usMaxLVDSPclkFreqInSingleLink);
1759           info->max_lvds_pclk_freq_in_single_link =
1760                     le16_to_cpu(info_v11->usMaxLVDSPclkFreqInSingleLink);
1761           info->lvds_pwr_on_seq_dig_on_to_de_in_4ms =
1762                     info_v11->ucLVDSPwrOnSeqDIGONtoDE_in4Ms;
1763           info->lvds_pwr_on_seq_de_to_vary_bl_in_4ms =
1764                     info_v11->ucLVDSPwrOnSeqDEtoVARY_BL_in4Ms;
1765           info->lvds_pwr_on_seq_vary_bl_to_blon_in_4ms =
1766                     info_v11->ucLVDSPwrOnSeqVARY_BLtoBLON_in4Ms;
1767           info->lvds_pwr_off_seq_vary_bl_to_de_in4ms =
1768                     info_v11->ucLVDSPwrOffSeqVARY_BLtoDE_in4Ms;
1769           info->lvds_pwr_off_seq_de_to_dig_on_in4ms =
1770                     info_v11->ucLVDSPwrOffSeqDEtoDIGON_in4Ms;
1771           info->lvds_pwr_off_seq_blon_to_vary_bl_in_4ms =
1772                     info_v11->ucLVDSPwrOffSeqBLONtoVARY_BL_in4Ms;
1773           info->lvds_off_to_on_delay_in_4ms =
1774                     info_v11->ucLVDSOffToOnDelay_in4Ms;
1775           info->lvds_bit_depth_control_val =
1776                     le32_to_cpu(info_v11->ulLCDBitDepthControlVal);
1777 
1778           for (i = 0; i < NUMBER_OF_AVAILABLE_SCLK; ++i) {
1779                     /* Convert [10KHz] into [KHz] */
1780                     info->avail_s_clk[i].supported_s_clk =
1781                               le32_to_cpu(info_v11->sAvail_SCLK[i].ulSupportedSCLK)
1782                                                                                           * 10;
1783                     info->avail_s_clk[i].voltage_index =
1784                               le16_to_cpu(info_v11->sAvail_SCLK[i].usVoltageIndex);
1785                     info->avail_s_clk[i].voltage_id =
1786                               le16_to_cpu(info_v11->sAvail_SCLK[i].usVoltageID);
1787           }
1788           #endif /* TODO*/
1789 
1790           return BP_RESULT_OK;
1791 }
1792 
1793 
1794 /*
1795  * construct_integrated_info
1796  *
1797  * @brief
1798  * Get integrated BIOS information based on table revision
1799  *
1800  * @param
1801  * bios_parser *bp - [in]BIOS parser handler to get master data table
1802  * integrated_info *info - [out] store and output integrated info
1803  *
1804  * @return
1805  * enum bp_result - BP_RESULT_OK if information is available,
1806  *                  BP_RESULT_BADBIOSTABLE otherwise.
1807  */
construct_integrated_info(struct bios_parser * bp,struct integrated_info * info)1808 static enum bp_result construct_integrated_info(
1809           struct bios_parser *bp,
1810           struct integrated_info *info)
1811 {
1812           enum bp_result result = BP_RESULT_BADBIOSTABLE;
1813 
1814           struct atom_common_table_header *header;
1815           struct atom_data_revision revision;
1816 
1817           struct clock_voltage_caps temp = {0, 0};
1818           uint32_t i;
1819           uint32_t j;
1820 
1821           if (info && DATA_TABLES(integratedsysteminfo)) {
1822                     header = GET_IMAGE(struct atom_common_table_header,
1823                                                   DATA_TABLES(integratedsysteminfo));
1824 
1825                     get_atom_data_table_revision(header, &revision);
1826 
1827                     /* Don't need to check major revision as they are all 1 */
1828                     switch (revision.minor) {
1829                     case 11:
1830                               result = get_integrated_info_v11(bp, info);
1831                               break;
1832                     default:
1833                               return result;
1834                     }
1835           }
1836 
1837           if (result != BP_RESULT_OK)
1838                     return result;
1839 
1840           /* Sort voltage table from low to high*/
1841           for (i = 1; i < NUMBER_OF_DISP_CLK_VOLTAGE; ++i) {
1842                     for (j = i; j > 0; --j) {
1843                               if (info->disp_clk_voltage[j].max_supported_clk <
1844                                         info->disp_clk_voltage[j-1].max_supported_clk
1845                                         ) {
1846                                         /* swap j and j - 1*/
1847                                         temp = info->disp_clk_voltage[j-1];
1848                                         info->disp_clk_voltage[j-1] =
1849                                                   info->disp_clk_voltage[j];
1850                                         info->disp_clk_voltage[j] = temp;
1851                               }
1852                     }
1853           }
1854 
1855           return result;
1856 }
1857 
bios_parser_create_integrated_info(struct dc_bios * dcb)1858 static struct integrated_info *bios_parser_create_integrated_info(
1859           struct dc_bios *dcb)
1860 {
1861           struct bios_parser *bp = BP_FROM_DCB(dcb);
1862           struct integrated_info *info = NULL;
1863 
1864           info = kzalloc(sizeof(struct integrated_info), GFP_KERNEL);
1865 
1866           if (info == NULL) {
1867                     ASSERT_CRITICAL(0);
1868                     return NULL;
1869           }
1870 
1871           if (construct_integrated_info(bp, info) == BP_RESULT_OK)
1872                     return info;
1873 
1874           kfree(info);
1875 
1876           return NULL;
1877 }
1878 
update_slot_layout_info(struct dc_bios * dcb,unsigned int i,struct slot_layout_info * slot_layout_info)1879 static enum bp_result update_slot_layout_info(
1880           struct dc_bios *dcb,
1881           unsigned int i,
1882           struct slot_layout_info *slot_layout_info)
1883 {
1884           unsigned int record_offset;
1885           unsigned int j;
1886           struct atom_display_object_path_v2 *object;
1887           struct atom_bracket_layout_record *record;
1888           struct atom_common_record_header *record_header;
1889           enum bp_result result;
1890           struct bios_parser *bp;
1891           struct object_info_table *tbl;
1892           struct display_object_info_table_v1_4 *v1_4;
1893 
1894           record = NULL;
1895           record_header = NULL;
1896           result = BP_RESULT_NORECORD;
1897 
1898           bp = BP_FROM_DCB(dcb);
1899           tbl = &bp->object_info_tbl;
1900           v1_4 = tbl->v1_4;
1901 
1902           object = &v1_4->display_path[i];
1903           record_offset = (unsigned int)
1904                     (object->disp_recordoffset) +
1905                     (unsigned int)(bp->object_info_tbl_offset);
1906 
1907           for (;;) {
1908 
1909                     record_header = (struct atom_common_record_header *)
1910                               GET_IMAGE(struct atom_common_record_header,
1911                               record_offset);
1912                     if (record_header == NULL) {
1913                               result = BP_RESULT_BADBIOSTABLE;
1914                               break;
1915                     }
1916 
1917                     /* the end of the list */
1918                     if (record_header->record_type == 0xff ||
1919                               record_header->record_size == 0)        {
1920                               break;
1921                     }
1922 
1923                     if (record_header->record_type ==
1924                               ATOM_BRACKET_LAYOUT_RECORD_TYPE &&
1925                               sizeof(struct atom_bracket_layout_record)
1926                               <= record_header->record_size) {
1927                               record = (struct atom_bracket_layout_record *)
1928                                         (record_header);
1929                               result = BP_RESULT_OK;
1930                               break;
1931                     }
1932 
1933                     record_offset += record_header->record_size;
1934           }
1935 
1936           /* return if the record not found */
1937           if (result != BP_RESULT_OK)
1938                     return result;
1939 
1940           /* get slot sizes */
1941           slot_layout_info->length = record->bracketlen;
1942           slot_layout_info->width = record->bracketwidth;
1943 
1944           /* get info for each connector in the slot */
1945           slot_layout_info->num_of_connectors = record->conn_num;
1946           for (j = 0; j < slot_layout_info->num_of_connectors; ++j) {
1947                     slot_layout_info->connectors[j].connector_type =
1948                               (enum connector_layout_type)
1949                               (record->conn_info[j].connector_type);
1950                     switch (record->conn_info[j].connector_type) {
1951                     case CONNECTOR_TYPE_DVI_D:
1952                               slot_layout_info->connectors[j].connector_type =
1953                                         CONNECTOR_LAYOUT_TYPE_DVI_D;
1954                               slot_layout_info->connectors[j].length =
1955                                         CONNECTOR_SIZE_DVI;
1956                               break;
1957 
1958                     case CONNECTOR_TYPE_HDMI:
1959                               slot_layout_info->connectors[j].connector_type =
1960                                         CONNECTOR_LAYOUT_TYPE_HDMI;
1961                               slot_layout_info->connectors[j].length =
1962                                         CONNECTOR_SIZE_HDMI;
1963                               break;
1964 
1965                     case CONNECTOR_TYPE_DISPLAY_PORT:
1966                               slot_layout_info->connectors[j].connector_type =
1967                                         CONNECTOR_LAYOUT_TYPE_DP;
1968                               slot_layout_info->connectors[j].length =
1969                                         CONNECTOR_SIZE_DP;
1970                               break;
1971 
1972                     case CONNECTOR_TYPE_MINI_DISPLAY_PORT:
1973                               slot_layout_info->connectors[j].connector_type =
1974                                         CONNECTOR_LAYOUT_TYPE_MINI_DP;
1975                               slot_layout_info->connectors[j].length =
1976                                         CONNECTOR_SIZE_MINI_DP;
1977                               break;
1978 
1979                     default:
1980                               slot_layout_info->connectors[j].connector_type =
1981                                         CONNECTOR_LAYOUT_TYPE_UNKNOWN;
1982                               slot_layout_info->connectors[j].length =
1983                                         CONNECTOR_SIZE_UNKNOWN;
1984                     }
1985 
1986                     slot_layout_info->connectors[j].position =
1987                               record->conn_info[j].position;
1988                     slot_layout_info->connectors[j].connector_id =
1989                               object_id_from_bios_object_id(
1990                                         record->conn_info[j].connectorobjid);
1991           }
1992           return result;
1993 }
1994 
1995 
get_bracket_layout_record(struct dc_bios * dcb,unsigned int bracket_layout_id,struct slot_layout_info * slot_layout_info)1996 static enum bp_result get_bracket_layout_record(
1997           struct dc_bios *dcb,
1998           unsigned int bracket_layout_id,
1999           struct slot_layout_info *slot_layout_info)
2000 {
2001           unsigned int i;
2002           struct bios_parser *bp = BP_FROM_DCB(dcb);
2003           enum bp_result result;
2004           struct object_info_table *tbl;
2005           struct display_object_info_table_v1_4 *v1_4;
2006 
2007           if (slot_layout_info == NULL) {
2008                     DC_LOG_DETECTION_EDID_PARSER("Invalid slot_layout_info\n");
2009                     return BP_RESULT_BADINPUT;
2010           }
2011           tbl = &bp->object_info_tbl;
2012           v1_4 = tbl->v1_4;
2013 
2014           result = BP_RESULT_NORECORD;
2015           for (i = 0; i < v1_4->number_of_path; ++i)        {
2016 
2017                     if (bracket_layout_id ==
2018                               v1_4->display_path[i].display_objid) {
2019                               result = update_slot_layout_info(dcb, i,
2020                                         slot_layout_info);
2021                               break;
2022                     }
2023           }
2024           return result;
2025 }
2026 
bios_get_board_layout_info(struct dc_bios * dcb,struct board_layout_info * board_layout_info)2027 static enum bp_result bios_get_board_layout_info(
2028           struct dc_bios *dcb,
2029           struct board_layout_info *board_layout_info)
2030 {
2031           unsigned int i;
2032           struct bios_parser *bp;
2033           enum bp_result record_result;
2034 
2035           const unsigned int slot_index_to_vbios_id[MAX_BOARD_SLOTS] = {
2036                     GENERICOBJECT_BRACKET_LAYOUT_ENUM_ID1,
2037                     GENERICOBJECT_BRACKET_LAYOUT_ENUM_ID2,
2038                     0, 0
2039           };
2040 
2041           bp = BP_FROM_DCB(dcb);
2042           if (board_layout_info == NULL) {
2043                     DC_LOG_DETECTION_EDID_PARSER("Invalid board_layout_info\n");
2044                     return BP_RESULT_BADINPUT;
2045           }
2046 
2047           board_layout_info->num_of_slots = 0;
2048 
2049           for (i = 0; i < MAX_BOARD_SLOTS; ++i) {
2050                     record_result = get_bracket_layout_record(dcb,
2051                               slot_index_to_vbios_id[i],
2052                               &board_layout_info->slots[i]);
2053 
2054                     if (record_result == BP_RESULT_NORECORD && i > 0)
2055                               break; /* no more slots present in bios */
2056                     else if (record_result != BP_RESULT_OK)
2057                               return record_result;  /* fail */
2058 
2059                     ++board_layout_info->num_of_slots;
2060           }
2061 
2062           /* all data is valid */
2063           board_layout_info->is_number_of_slots_valid = 1;
2064           board_layout_info->is_slots_size_valid = 1;
2065           board_layout_info->is_connector_offsets_valid = 1;
2066           board_layout_info->is_connector_lengths_valid = 1;
2067 
2068           return BP_RESULT_OK;
2069 }
2070 
2071 static const struct dc_vbios_funcs vbios_funcs = {
2072           .get_connectors_number = bios_parser_get_connectors_number,
2073 
2074           .get_encoder_id = bios_parser_get_encoder_id,
2075 
2076           .get_connector_id = bios_parser_get_connector_id,
2077 
2078           .get_dst_number = bios_parser_get_dst_number,
2079 
2080           .get_src_obj = bios_parser_get_src_obj,
2081 
2082           .get_dst_obj = bios_parser_get_dst_obj,
2083 
2084           .get_i2c_info = bios_parser_get_i2c_info,
2085 
2086           .get_voltage_ddc_info = bios_parser_get_voltage_ddc_info,
2087 
2088           .get_thermal_ddc_info = bios_parser_get_thermal_ddc_info,
2089 
2090           .get_hpd_info = bios_parser_get_hpd_info,
2091 
2092           .get_device_tag = bios_parser_get_device_tag,
2093 
2094           .get_firmware_info = bios_parser_get_firmware_info,
2095 
2096           .get_spread_spectrum_info = bios_parser_get_spread_spectrum_info,
2097 
2098           .get_ss_entry_number = bios_parser_get_ss_entry_number,
2099 
2100           .get_embedded_panel_info = bios_parser_get_embedded_panel_info,
2101 
2102           .get_gpio_pin_info = bios_parser_get_gpio_pin_info,
2103 
2104           .get_encoder_cap_info = bios_parser_get_encoder_cap_info,
2105 
2106           .is_device_id_supported = bios_parser_is_device_id_supported,
2107 
2108 
2109 
2110           .is_accelerated_mode = bios_parser_is_accelerated_mode,
2111           .get_vga_enabled_displays = bios_parser_get_vga_enabled_displays,
2112 
2113           .set_scratch_critical_state = bios_parser_set_scratch_critical_state,
2114 
2115 
2116 /*         COMMANDS */
2117           .encoder_control = bios_parser_encoder_control,
2118 
2119           .transmitter_control = bios_parser_transmitter_control,
2120 
2121           .enable_crtc = bios_parser_enable_crtc,
2122 
2123           .set_pixel_clock = bios_parser_set_pixel_clock,
2124 
2125           .set_dce_clock = bios_parser_set_dce_clock,
2126 
2127           .program_crtc_timing = bios_parser_program_crtc_timing,
2128 
2129           /* .blank_crtc = bios_parser_blank_crtc, */
2130 
2131           .crtc_source_select = bios_parser_crtc_source_select,
2132 
2133           /* .external_encoder_control = bios_parser_external_encoder_control, */
2134 
2135           .enable_disp_power_gating = bios_parser_enable_disp_power_gating,
2136 
2137           .post_init = bios_parser_post_init,
2138 
2139           .bios_parser_destroy = firmware_parser_destroy,
2140 
2141           .get_smu_clock_info = bios_parser_get_smu_clock_info,
2142 
2143           .get_board_layout_info = bios_get_board_layout_info,
2144 };
2145 
bios_parser_construct(struct bios_parser * bp,struct bp_init_data * init,enum dce_version dce_version)2146 static bool bios_parser_construct(
2147           struct bios_parser *bp,
2148           struct bp_init_data *init,
2149           enum dce_version dce_version)
2150 {
2151           uint16_t *rom_header_offset = NULL;
2152           struct atom_rom_header_v2_2 *rom_header = NULL;
2153           struct display_object_info_table_v1_4 *object_info_tbl;
2154           struct atom_data_revision tbl_rev = {0};
2155 
2156           if (!init)
2157                     return false;
2158 
2159           if (!init->bios)
2160                     return false;
2161 
2162           bp->base.funcs = &vbios_funcs;
2163           bp->base.bios = init->bios;
2164           bp->base.bios_size = bp->base.bios[OFFSET_TO_ATOM_ROM_IMAGE_SIZE] * BIOS_IMAGE_SIZE_UNIT;
2165 
2166           bp->base.ctx = init->ctx;
2167 
2168           bp->base.bios_local_image = NULL;
2169 
2170           rom_header_offset =
2171                               GET_IMAGE(uint16_t, OFFSET_TO_ATOM_ROM_HEADER_POINTER);
2172 
2173           if (!rom_header_offset)
2174                     return false;
2175 
2176           rom_header = GET_IMAGE(struct atom_rom_header_v2_2, *rom_header_offset);
2177 
2178           if (!rom_header)
2179                     return false;
2180 
2181           get_atom_data_table_revision(&rom_header->table_header, &tbl_rev);
2182           if (!(tbl_rev.major >= 2 && tbl_rev.minor >= 2))
2183                     return false;
2184 
2185           bp->master_data_tbl =
2186                     GET_IMAGE(struct atom_master_data_table_v2_1,
2187                                         rom_header->masterdatatable_offset);
2188 
2189           if (!bp->master_data_tbl)
2190                     return false;
2191 
2192           bp->object_info_tbl_offset = DATA_TABLES(displayobjectinfo);
2193 
2194           if (!bp->object_info_tbl_offset)
2195                     return false;
2196 
2197           object_info_tbl =
2198                               GET_IMAGE(struct display_object_info_table_v1_4,
2199                                                             bp->object_info_tbl_offset);
2200 
2201           if (!object_info_tbl)
2202                     return false;
2203 
2204           get_atom_data_table_revision(&object_info_tbl->table_header,
2205                     &bp->object_info_tbl.revision);
2206 
2207           if (bp->object_info_tbl.revision.major == 1
2208                     && bp->object_info_tbl.revision.minor >= 4) {
2209                     struct display_object_info_table_v1_4 *tbl_v1_4;
2210 
2211                     tbl_v1_4 = GET_IMAGE(struct display_object_info_table_v1_4,
2212                               bp->object_info_tbl_offset);
2213                     if (!tbl_v1_4)
2214                               return false;
2215 
2216                     bp->object_info_tbl.v1_4 = tbl_v1_4;
2217           } else
2218                     return false;
2219 
2220           dal_firmware_parser_init_cmd_tbl(bp);
2221           dal_bios_parser_init_cmd_tbl_helper2(&bp->cmd_helper, dce_version);
2222 
2223           bp->base.integrated_info = bios_parser_create_integrated_info(&bp->base);
2224 
2225           return true;
2226 }
2227 
firmware_parser_create(struct bp_init_data * init,enum dce_version dce_version)2228 struct dc_bios *firmware_parser_create(
2229           struct bp_init_data *init,
2230           enum dce_version dce_version)
2231 {
2232           struct bios_parser *bp = NULL;
2233 
2234           bp = kzalloc(sizeof(struct bios_parser), GFP_KERNEL);
2235           if (!bp)
2236                     return NULL;
2237 
2238           if (bios_parser_construct(bp, init, dce_version))
2239                     return &bp->base;
2240 
2241           kfree(bp);
2242           return NULL;
2243 }
2244 
2245 
2246