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Merge remote-tracking branch 'battery/for-next'
[deliverable/linux.git] / drivers / gpu / drm / amd / amdgpu / amdgpu_atombios.c
1 /*
2 * Copyright 2007-8 Advanced Micro Devices, Inc.
3 * Copyright 2008 Red Hat Inc.
4 *
5 * Permission is hereby granted, free of charge, to any person obtaining a
6 * copy of this software and associated documentation files (the "Software"),
7 * to deal in the Software without restriction, including without limitation
8 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
9 * and/or sell copies of the Software, and to permit persons to whom the
10 * Software is furnished to do so, subject to the following conditions:
11 *
12 * The above copyright notice and this permission notice shall be included in
13 * all copies or substantial portions of the Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
18 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
19 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
20 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
21 * OTHER DEALINGS IN THE SOFTWARE.
22 *
23 * Authors: Dave Airlie
24 * Alex Deucher
25 */
26 #include <drm/drmP.h>
27 #include <drm/amdgpu_drm.h>
28 #include "amdgpu.h"
29 #include "amdgpu_atombios.h"
30 #include "amdgpu_i2c.h"
31
32 #include "atom.h"
33 #include "atom-bits.h"
34 #include "atombios_encoders.h"
35 #include "bif/bif_4_1_d.h"
36
37 static void amdgpu_atombios_lookup_i2c_gpio_quirks(struct amdgpu_device *adev,
38 ATOM_GPIO_I2C_ASSIGMENT *gpio,
39 u8 index)
40 {
41
42 }
43
44 static struct amdgpu_i2c_bus_rec amdgpu_atombios_get_bus_rec_for_i2c_gpio(ATOM_GPIO_I2C_ASSIGMENT *gpio)
45 {
46 struct amdgpu_i2c_bus_rec i2c;
47
48 memset(&i2c, 0, sizeof(struct amdgpu_i2c_bus_rec));
49
50 i2c.mask_clk_reg = le16_to_cpu(gpio->usClkMaskRegisterIndex);
51 i2c.mask_data_reg = le16_to_cpu(gpio->usDataMaskRegisterIndex);
52 i2c.en_clk_reg = le16_to_cpu(gpio->usClkEnRegisterIndex);
53 i2c.en_data_reg = le16_to_cpu(gpio->usDataEnRegisterIndex);
54 i2c.y_clk_reg = le16_to_cpu(gpio->usClkY_RegisterIndex);
55 i2c.y_data_reg = le16_to_cpu(gpio->usDataY_RegisterIndex);
56 i2c.a_clk_reg = le16_to_cpu(gpio->usClkA_RegisterIndex);
57 i2c.a_data_reg = le16_to_cpu(gpio->usDataA_RegisterIndex);
58 i2c.mask_clk_mask = (1 << gpio->ucClkMaskShift);
59 i2c.mask_data_mask = (1 << gpio->ucDataMaskShift);
60 i2c.en_clk_mask = (1 << gpio->ucClkEnShift);
61 i2c.en_data_mask = (1 << gpio->ucDataEnShift);
62 i2c.y_clk_mask = (1 << gpio->ucClkY_Shift);
63 i2c.y_data_mask = (1 << gpio->ucDataY_Shift);
64 i2c.a_clk_mask = (1 << gpio->ucClkA_Shift);
65 i2c.a_data_mask = (1 << gpio->ucDataA_Shift);
66
67 if (gpio->sucI2cId.sbfAccess.bfHW_Capable)
68 i2c.hw_capable = true;
69 else
70 i2c.hw_capable = false;
71
72 if (gpio->sucI2cId.ucAccess == 0xa0)
73 i2c.mm_i2c = true;
74 else
75 i2c.mm_i2c = false;
76
77 i2c.i2c_id = gpio->sucI2cId.ucAccess;
78
79 if (i2c.mask_clk_reg)
80 i2c.valid = true;
81 else
82 i2c.valid = false;
83
84 return i2c;
85 }
86
87 struct amdgpu_i2c_bus_rec amdgpu_atombios_lookup_i2c_gpio(struct amdgpu_device *adev,
88 uint8_t id)
89 {
90 struct atom_context *ctx = adev->mode_info.atom_context;
91 ATOM_GPIO_I2C_ASSIGMENT *gpio;
92 struct amdgpu_i2c_bus_rec i2c;
93 int index = GetIndexIntoMasterTable(DATA, GPIO_I2C_Info);
94 struct _ATOM_GPIO_I2C_INFO *i2c_info;
95 uint16_t data_offset, size;
96 int i, num_indices;
97
98 memset(&i2c, 0, sizeof(struct amdgpu_i2c_bus_rec));
99 i2c.valid = false;
100
101 if (amdgpu_atom_parse_data_header(ctx, index, &size, NULL, NULL, &data_offset)) {
102 i2c_info = (struct _ATOM_GPIO_I2C_INFO *)(ctx->bios + data_offset);
103
104 num_indices = (size - sizeof(ATOM_COMMON_TABLE_HEADER)) /
105 sizeof(ATOM_GPIO_I2C_ASSIGMENT);
106
107 gpio = &i2c_info->asGPIO_Info[0];
108 for (i = 0; i < num_indices; i++) {
109
110 amdgpu_atombios_lookup_i2c_gpio_quirks(adev, gpio, i);
111
112 if (gpio->sucI2cId.ucAccess == id) {
113 i2c = amdgpu_atombios_get_bus_rec_for_i2c_gpio(gpio);
114 break;
115 }
116 gpio = (ATOM_GPIO_I2C_ASSIGMENT *)
117 ((u8 *)gpio + sizeof(ATOM_GPIO_I2C_ASSIGMENT));
118 }
119 }
120
121 return i2c;
122 }
123
124 void amdgpu_atombios_i2c_init(struct amdgpu_device *adev)
125 {
126 struct atom_context *ctx = adev->mode_info.atom_context;
127 ATOM_GPIO_I2C_ASSIGMENT *gpio;
128 struct amdgpu_i2c_bus_rec i2c;
129 int index = GetIndexIntoMasterTable(DATA, GPIO_I2C_Info);
130 struct _ATOM_GPIO_I2C_INFO *i2c_info;
131 uint16_t data_offset, size;
132 int i, num_indices;
133 char stmp[32];
134
135 if (amdgpu_atom_parse_data_header(ctx, index, &size, NULL, NULL, &data_offset)) {
136 i2c_info = (struct _ATOM_GPIO_I2C_INFO *)(ctx->bios + data_offset);
137
138 num_indices = (size - sizeof(ATOM_COMMON_TABLE_HEADER)) /
139 sizeof(ATOM_GPIO_I2C_ASSIGMENT);
140
141 gpio = &i2c_info->asGPIO_Info[0];
142 for (i = 0; i < num_indices; i++) {
143 amdgpu_atombios_lookup_i2c_gpio_quirks(adev, gpio, i);
144
145 i2c = amdgpu_atombios_get_bus_rec_for_i2c_gpio(gpio);
146
147 if (i2c.valid) {
148 sprintf(stmp, "0x%x", i2c.i2c_id);
149 adev->i2c_bus[i] = amdgpu_i2c_create(adev->ddev, &i2c, stmp);
150 }
151 gpio = (ATOM_GPIO_I2C_ASSIGMENT *)
152 ((u8 *)gpio + sizeof(ATOM_GPIO_I2C_ASSIGMENT));
153 }
154 }
155 }
156
157 struct amdgpu_gpio_rec
158 amdgpu_atombios_lookup_gpio(struct amdgpu_device *adev,
159 u8 id)
160 {
161 struct atom_context *ctx = adev->mode_info.atom_context;
162 struct amdgpu_gpio_rec gpio;
163 int index = GetIndexIntoMasterTable(DATA, GPIO_Pin_LUT);
164 struct _ATOM_GPIO_PIN_LUT *gpio_info;
165 ATOM_GPIO_PIN_ASSIGNMENT *pin;
166 u16 data_offset, size;
167 int i, num_indices;
168
169 memset(&gpio, 0, sizeof(struct amdgpu_gpio_rec));
170 gpio.valid = false;
171
172 if (amdgpu_atom_parse_data_header(ctx, index, &size, NULL, NULL, &data_offset)) {
173 gpio_info = (struct _ATOM_GPIO_PIN_LUT *)(ctx->bios + data_offset);
174
175 num_indices = (size - sizeof(ATOM_COMMON_TABLE_HEADER)) /
176 sizeof(ATOM_GPIO_PIN_ASSIGNMENT);
177
178 pin = gpio_info->asGPIO_Pin;
179 for (i = 0; i < num_indices; i++) {
180 if (id == pin->ucGPIO_ID) {
181 gpio.id = pin->ucGPIO_ID;
182 gpio.reg = le16_to_cpu(pin->usGpioPin_AIndex);
183 gpio.shift = pin->ucGpioPinBitShift;
184 gpio.mask = (1 << pin->ucGpioPinBitShift);
185 gpio.valid = true;
186 break;
187 }
188 pin = (ATOM_GPIO_PIN_ASSIGNMENT *)
189 ((u8 *)pin + sizeof(ATOM_GPIO_PIN_ASSIGNMENT));
190 }
191 }
192
193 return gpio;
194 }
195
196 static struct amdgpu_hpd
197 amdgpu_atombios_get_hpd_info_from_gpio(struct amdgpu_device *adev,
198 struct amdgpu_gpio_rec *gpio)
199 {
200 struct amdgpu_hpd hpd;
201 u32 reg;
202
203 memset(&hpd, 0, sizeof(struct amdgpu_hpd));
204
205 reg = amdgpu_display_hpd_get_gpio_reg(adev);
206
207 hpd.gpio = *gpio;
208 if (gpio->reg == reg) {
209 switch(gpio->mask) {
210 case (1 << 0):
211 hpd.hpd = AMDGPU_HPD_1;
212 break;
213 case (1 << 8):
214 hpd.hpd = AMDGPU_HPD_2;
215 break;
216 case (1 << 16):
217 hpd.hpd = AMDGPU_HPD_3;
218 break;
219 case (1 << 24):
220 hpd.hpd = AMDGPU_HPD_4;
221 break;
222 case (1 << 26):
223 hpd.hpd = AMDGPU_HPD_5;
224 break;
225 case (1 << 28):
226 hpd.hpd = AMDGPU_HPD_6;
227 break;
228 default:
229 hpd.hpd = AMDGPU_HPD_NONE;
230 break;
231 }
232 } else
233 hpd.hpd = AMDGPU_HPD_NONE;
234 return hpd;
235 }
236
237 static const int object_connector_convert[] = {
238 DRM_MODE_CONNECTOR_Unknown,
239 DRM_MODE_CONNECTOR_DVII,
240 DRM_MODE_CONNECTOR_DVII,
241 DRM_MODE_CONNECTOR_DVID,
242 DRM_MODE_CONNECTOR_DVID,
243 DRM_MODE_CONNECTOR_VGA,
244 DRM_MODE_CONNECTOR_Composite,
245 DRM_MODE_CONNECTOR_SVIDEO,
246 DRM_MODE_CONNECTOR_Unknown,
247 DRM_MODE_CONNECTOR_Unknown,
248 DRM_MODE_CONNECTOR_9PinDIN,
249 DRM_MODE_CONNECTOR_Unknown,
250 DRM_MODE_CONNECTOR_HDMIA,
251 DRM_MODE_CONNECTOR_HDMIB,
252 DRM_MODE_CONNECTOR_LVDS,
253 DRM_MODE_CONNECTOR_9PinDIN,
254 DRM_MODE_CONNECTOR_Unknown,
255 DRM_MODE_CONNECTOR_Unknown,
256 DRM_MODE_CONNECTOR_Unknown,
257 DRM_MODE_CONNECTOR_DisplayPort,
258 DRM_MODE_CONNECTOR_eDP,
259 DRM_MODE_CONNECTOR_Unknown
260 };
261
262 bool amdgpu_atombios_has_dce_engine_info(struct amdgpu_device *adev)
263 {
264 struct amdgpu_mode_info *mode_info = &adev->mode_info;
265 struct atom_context *ctx = mode_info->atom_context;
266 int index = GetIndexIntoMasterTable(DATA, Object_Header);
267 u16 size, data_offset;
268 u8 frev, crev;
269 ATOM_DISPLAY_OBJECT_PATH_TABLE *path_obj;
270 ATOM_OBJECT_HEADER *obj_header;
271
272 if (!amdgpu_atom_parse_data_header(ctx, index, &size, &frev, &crev, &data_offset))
273 return false;
274
275 if (crev < 2)
276 return false;
277
278 obj_header = (ATOM_OBJECT_HEADER *) (ctx->bios + data_offset);
279 path_obj = (ATOM_DISPLAY_OBJECT_PATH_TABLE *)
280 (ctx->bios + data_offset +
281 le16_to_cpu(obj_header->usDisplayPathTableOffset));
282
283 if (path_obj->ucNumOfDispPath)
284 return true;
285 else
286 return false;
287 }
288
289 bool amdgpu_atombios_get_connector_info_from_object_table(struct amdgpu_device *adev)
290 {
291 struct amdgpu_mode_info *mode_info = &adev->mode_info;
292 struct atom_context *ctx = mode_info->atom_context;
293 int index = GetIndexIntoMasterTable(DATA, Object_Header);
294 u16 size, data_offset;
295 u8 frev, crev;
296 ATOM_CONNECTOR_OBJECT_TABLE *con_obj;
297 ATOM_ENCODER_OBJECT_TABLE *enc_obj;
298 ATOM_OBJECT_TABLE *router_obj;
299 ATOM_DISPLAY_OBJECT_PATH_TABLE *path_obj;
300 ATOM_OBJECT_HEADER *obj_header;
301 int i, j, k, path_size, device_support;
302 int connector_type;
303 u16 conn_id, connector_object_id;
304 struct amdgpu_i2c_bus_rec ddc_bus;
305 struct amdgpu_router router;
306 struct amdgpu_gpio_rec gpio;
307 struct amdgpu_hpd hpd;
308
309 if (!amdgpu_atom_parse_data_header(ctx, index, &size, &frev, &crev, &data_offset))
310 return false;
311
312 if (crev < 2)
313 return false;
314
315 obj_header = (ATOM_OBJECT_HEADER *) (ctx->bios + data_offset);
316 path_obj = (ATOM_DISPLAY_OBJECT_PATH_TABLE *)
317 (ctx->bios + data_offset +
318 le16_to_cpu(obj_header->usDisplayPathTableOffset));
319 con_obj = (ATOM_CONNECTOR_OBJECT_TABLE *)
320 (ctx->bios + data_offset +
321 le16_to_cpu(obj_header->usConnectorObjectTableOffset));
322 enc_obj = (ATOM_ENCODER_OBJECT_TABLE *)
323 (ctx->bios + data_offset +
324 le16_to_cpu(obj_header->usEncoderObjectTableOffset));
325 router_obj = (ATOM_OBJECT_TABLE *)
326 (ctx->bios + data_offset +
327 le16_to_cpu(obj_header->usRouterObjectTableOffset));
328 device_support = le16_to_cpu(obj_header->usDeviceSupport);
329
330 path_size = 0;
331 for (i = 0; i < path_obj->ucNumOfDispPath; i++) {
332 uint8_t *addr = (uint8_t *) path_obj->asDispPath;
333 ATOM_DISPLAY_OBJECT_PATH *path;
334 addr += path_size;
335 path = (ATOM_DISPLAY_OBJECT_PATH *) addr;
336 path_size += le16_to_cpu(path->usSize);
337
338 if (device_support & le16_to_cpu(path->usDeviceTag)) {
339 uint8_t con_obj_id, con_obj_num, con_obj_type;
340
341 con_obj_id =
342 (le16_to_cpu(path->usConnObjectId) & OBJECT_ID_MASK)
343 >> OBJECT_ID_SHIFT;
344 con_obj_num =
345 (le16_to_cpu(path->usConnObjectId) & ENUM_ID_MASK)
346 >> ENUM_ID_SHIFT;
347 con_obj_type =
348 (le16_to_cpu(path->usConnObjectId) &
349 OBJECT_TYPE_MASK) >> OBJECT_TYPE_SHIFT;
350
351 /* Skip TV/CV support */
352 if ((le16_to_cpu(path->usDeviceTag) ==
353 ATOM_DEVICE_TV1_SUPPORT) ||
354 (le16_to_cpu(path->usDeviceTag) ==
355 ATOM_DEVICE_CV_SUPPORT))
356 continue;
357
358 if (con_obj_id >= ARRAY_SIZE(object_connector_convert)) {
359 DRM_ERROR("invalid con_obj_id %d for device tag 0x%04x\n",
360 con_obj_id, le16_to_cpu(path->usDeviceTag));
361 continue;
362 }
363
364 connector_type =
365 object_connector_convert[con_obj_id];
366 connector_object_id = con_obj_id;
367
368 if (connector_type == DRM_MODE_CONNECTOR_Unknown)
369 continue;
370
371 router.ddc_valid = false;
372 router.cd_valid = false;
373 for (j = 0; j < ((le16_to_cpu(path->usSize) - 8) / 2); j++) {
374 uint8_t grph_obj_id, grph_obj_num, grph_obj_type;
375
376 grph_obj_id =
377 (le16_to_cpu(path->usGraphicObjIds[j]) &
378 OBJECT_ID_MASK) >> OBJECT_ID_SHIFT;
379 grph_obj_num =
380 (le16_to_cpu(path->usGraphicObjIds[j]) &
381 ENUM_ID_MASK) >> ENUM_ID_SHIFT;
382 grph_obj_type =
383 (le16_to_cpu(path->usGraphicObjIds[j]) &
384 OBJECT_TYPE_MASK) >> OBJECT_TYPE_SHIFT;
385
386 if (grph_obj_type == GRAPH_OBJECT_TYPE_ENCODER) {
387 for (k = 0; k < enc_obj->ucNumberOfObjects; k++) {
388 u16 encoder_obj = le16_to_cpu(enc_obj->asObjects[k].usObjectID);
389 if (le16_to_cpu(path->usGraphicObjIds[j]) == encoder_obj) {
390 ATOM_COMMON_RECORD_HEADER *record = (ATOM_COMMON_RECORD_HEADER *)
391 (ctx->bios + data_offset +
392 le16_to_cpu(enc_obj->asObjects[k].usRecordOffset));
393 ATOM_ENCODER_CAP_RECORD *cap_record;
394 u16 caps = 0;
395
396 while (record->ucRecordSize > 0 &&
397 record->ucRecordType > 0 &&
398 record->ucRecordType <= ATOM_MAX_OBJECT_RECORD_NUMBER) {
399 switch (record->ucRecordType) {
400 case ATOM_ENCODER_CAP_RECORD_TYPE:
401 cap_record =(ATOM_ENCODER_CAP_RECORD *)
402 record;
403 caps = le16_to_cpu(cap_record->usEncoderCap);
404 break;
405 }
406 record = (ATOM_COMMON_RECORD_HEADER *)
407 ((char *)record + record->ucRecordSize);
408 }
409 amdgpu_display_add_encoder(adev, encoder_obj,
410 le16_to_cpu(path->usDeviceTag),
411 caps);
412 }
413 }
414 } else if (grph_obj_type == GRAPH_OBJECT_TYPE_ROUTER) {
415 for (k = 0; k < router_obj->ucNumberOfObjects; k++) {
416 u16 router_obj_id = le16_to_cpu(router_obj->asObjects[k].usObjectID);
417 if (le16_to_cpu(path->usGraphicObjIds[j]) == router_obj_id) {
418 ATOM_COMMON_RECORD_HEADER *record = (ATOM_COMMON_RECORD_HEADER *)
419 (ctx->bios + data_offset +
420 le16_to_cpu(router_obj->asObjects[k].usRecordOffset));
421 ATOM_I2C_RECORD *i2c_record;
422 ATOM_I2C_ID_CONFIG_ACCESS *i2c_config;
423 ATOM_ROUTER_DDC_PATH_SELECT_RECORD *ddc_path;
424 ATOM_ROUTER_DATA_CLOCK_PATH_SELECT_RECORD *cd_path;
425 ATOM_SRC_DST_TABLE_FOR_ONE_OBJECT *router_src_dst_table =
426 (ATOM_SRC_DST_TABLE_FOR_ONE_OBJECT *)
427 (ctx->bios + data_offset +
428 le16_to_cpu(router_obj->asObjects[k].usSrcDstTableOffset));
429 u8 *num_dst_objs = (u8 *)
430 ((u8 *)router_src_dst_table + 1 +
431 (router_src_dst_table->ucNumberOfSrc * 2));
432 u16 *dst_objs = (u16 *)(num_dst_objs + 1);
433 int enum_id;
434
435 router.router_id = router_obj_id;
436 for (enum_id = 0; enum_id < (*num_dst_objs); enum_id++) {
437 if (le16_to_cpu(path->usConnObjectId) ==
438 le16_to_cpu(dst_objs[enum_id]))
439 break;
440 }
441
442 while (record->ucRecordSize > 0 &&
443 record->ucRecordType > 0 &&
444 record->ucRecordType <= ATOM_MAX_OBJECT_RECORD_NUMBER) {
445 switch (record->ucRecordType) {
446 case ATOM_I2C_RECORD_TYPE:
447 i2c_record =
448 (ATOM_I2C_RECORD *)
449 record;
450 i2c_config =
451 (ATOM_I2C_ID_CONFIG_ACCESS *)
452 &i2c_record->sucI2cId;
453 router.i2c_info =
454 amdgpu_atombios_lookup_i2c_gpio(adev,
455 i2c_config->
456 ucAccess);
457 router.i2c_addr = i2c_record->ucI2CAddr >> 1;
458 break;
459 case ATOM_ROUTER_DDC_PATH_SELECT_RECORD_TYPE:
460 ddc_path = (ATOM_ROUTER_DDC_PATH_SELECT_RECORD *)
461 record;
462 router.ddc_valid = true;
463 router.ddc_mux_type = ddc_path->ucMuxType;
464 router.ddc_mux_control_pin = ddc_path->ucMuxControlPin;
465 router.ddc_mux_state = ddc_path->ucMuxState[enum_id];
466 break;
467 case ATOM_ROUTER_DATA_CLOCK_PATH_SELECT_RECORD_TYPE:
468 cd_path = (ATOM_ROUTER_DATA_CLOCK_PATH_SELECT_RECORD *)
469 record;
470 router.cd_valid = true;
471 router.cd_mux_type = cd_path->ucMuxType;
472 router.cd_mux_control_pin = cd_path->ucMuxControlPin;
473 router.cd_mux_state = cd_path->ucMuxState[enum_id];
474 break;
475 }
476 record = (ATOM_COMMON_RECORD_HEADER *)
477 ((char *)record + record->ucRecordSize);
478 }
479 }
480 }
481 }
482 }
483
484 /* look up gpio for ddc, hpd */
485 ddc_bus.valid = false;
486 hpd.hpd = AMDGPU_HPD_NONE;
487 if ((le16_to_cpu(path->usDeviceTag) &
488 (ATOM_DEVICE_TV_SUPPORT | ATOM_DEVICE_CV_SUPPORT)) == 0) {
489 for (j = 0; j < con_obj->ucNumberOfObjects; j++) {
490 if (le16_to_cpu(path->usConnObjectId) ==
491 le16_to_cpu(con_obj->asObjects[j].
492 usObjectID)) {
493 ATOM_COMMON_RECORD_HEADER
494 *record =
495 (ATOM_COMMON_RECORD_HEADER
496 *)
497 (ctx->bios + data_offset +
498 le16_to_cpu(con_obj->
499 asObjects[j].
500 usRecordOffset));
501 ATOM_I2C_RECORD *i2c_record;
502 ATOM_HPD_INT_RECORD *hpd_record;
503 ATOM_I2C_ID_CONFIG_ACCESS *i2c_config;
504
505 while (record->ucRecordSize > 0 &&
506 record->ucRecordType > 0 &&
507 record->ucRecordType <= ATOM_MAX_OBJECT_RECORD_NUMBER) {
508 switch (record->ucRecordType) {
509 case ATOM_I2C_RECORD_TYPE:
510 i2c_record =
511 (ATOM_I2C_RECORD *)
512 record;
513 i2c_config =
514 (ATOM_I2C_ID_CONFIG_ACCESS *)
515 &i2c_record->sucI2cId;
516 ddc_bus = amdgpu_atombios_lookup_i2c_gpio(adev,
517 i2c_config->
518 ucAccess);
519 break;
520 case ATOM_HPD_INT_RECORD_TYPE:
521 hpd_record =
522 (ATOM_HPD_INT_RECORD *)
523 record;
524 gpio = amdgpu_atombios_lookup_gpio(adev,
525 hpd_record->ucHPDIntGPIOID);
526 hpd = amdgpu_atombios_get_hpd_info_from_gpio(adev, &gpio);
527 hpd.plugged_state = hpd_record->ucPlugged_PinState;
528 break;
529 }
530 record =
531 (ATOM_COMMON_RECORD_HEADER
532 *) ((char *)record
533 +
534 record->
535 ucRecordSize);
536 }
537 break;
538 }
539 }
540 }
541
542 /* needed for aux chan transactions */
543 ddc_bus.hpd = hpd.hpd;
544
545 conn_id = le16_to_cpu(path->usConnObjectId);
546
547 amdgpu_display_add_connector(adev,
548 conn_id,
549 le16_to_cpu(path->usDeviceTag),
550 connector_type, &ddc_bus,
551 connector_object_id,
552 &hpd,
553 &router);
554
555 }
556 }
557
558 amdgpu_link_encoder_connector(adev->ddev);
559
560 return true;
561 }
562
563 union firmware_info {
564 ATOM_FIRMWARE_INFO info;
565 ATOM_FIRMWARE_INFO_V1_2 info_12;
566 ATOM_FIRMWARE_INFO_V1_3 info_13;
567 ATOM_FIRMWARE_INFO_V1_4 info_14;
568 ATOM_FIRMWARE_INFO_V2_1 info_21;
569 ATOM_FIRMWARE_INFO_V2_2 info_22;
570 };
571
572 int amdgpu_atombios_get_clock_info(struct amdgpu_device *adev)
573 {
574 struct amdgpu_mode_info *mode_info = &adev->mode_info;
575 int index = GetIndexIntoMasterTable(DATA, FirmwareInfo);
576 uint8_t frev, crev;
577 uint16_t data_offset;
578 int ret = -EINVAL;
579
580 if (amdgpu_atom_parse_data_header(mode_info->atom_context, index, NULL,
581 &frev, &crev, &data_offset)) {
582 int i;
583 struct amdgpu_pll *ppll = &adev->clock.ppll[0];
584 struct amdgpu_pll *spll = &adev->clock.spll;
585 struct amdgpu_pll *mpll = &adev->clock.mpll;
586 union firmware_info *firmware_info =
587 (union firmware_info *)(mode_info->atom_context->bios +
588 data_offset);
589 /* pixel clocks */
590 ppll->reference_freq =
591 le16_to_cpu(firmware_info->info.usReferenceClock);
592 ppll->reference_div = 0;
593
594 ppll->pll_out_min =
595 le32_to_cpu(firmware_info->info_12.ulMinPixelClockPLL_Output);
596 ppll->pll_out_max =
597 le32_to_cpu(firmware_info->info.ulMaxPixelClockPLL_Output);
598
599 ppll->lcd_pll_out_min =
600 le16_to_cpu(firmware_info->info_14.usLcdMinPixelClockPLL_Output) * 100;
601 if (ppll->lcd_pll_out_min == 0)
602 ppll->lcd_pll_out_min = ppll->pll_out_min;
603 ppll->lcd_pll_out_max =
604 le16_to_cpu(firmware_info->info_14.usLcdMaxPixelClockPLL_Output) * 100;
605 if (ppll->lcd_pll_out_max == 0)
606 ppll->lcd_pll_out_max = ppll->pll_out_max;
607
608 if (ppll->pll_out_min == 0)
609 ppll->pll_out_min = 64800;
610
611 ppll->pll_in_min =
612 le16_to_cpu(firmware_info->info.usMinPixelClockPLL_Input);
613 ppll->pll_in_max =
614 le16_to_cpu(firmware_info->info.usMaxPixelClockPLL_Input);
615
616 ppll->min_post_div = 2;
617 ppll->max_post_div = 0x7f;
618 ppll->min_frac_feedback_div = 0;
619 ppll->max_frac_feedback_div = 9;
620 ppll->min_ref_div = 2;
621 ppll->max_ref_div = 0x3ff;
622 ppll->min_feedback_div = 4;
623 ppll->max_feedback_div = 0xfff;
624 ppll->best_vco = 0;
625
626 for (i = 1; i < AMDGPU_MAX_PPLL; i++)
627 adev->clock.ppll[i] = *ppll;
628
629 /* system clock */
630 spll->reference_freq =
631 le16_to_cpu(firmware_info->info_21.usCoreReferenceClock);
632 spll->reference_div = 0;
633
634 spll->pll_out_min =
635 le16_to_cpu(firmware_info->info.usMinEngineClockPLL_Output);
636 spll->pll_out_max =
637 le32_to_cpu(firmware_info->info.ulMaxEngineClockPLL_Output);
638
639 /* ??? */
640 if (spll->pll_out_min == 0)
641 spll->pll_out_min = 64800;
642
643 spll->pll_in_min =
644 le16_to_cpu(firmware_info->info.usMinEngineClockPLL_Input);
645 spll->pll_in_max =
646 le16_to_cpu(firmware_info->info.usMaxEngineClockPLL_Input);
647
648 spll->min_post_div = 1;
649 spll->max_post_div = 1;
650 spll->min_ref_div = 2;
651 spll->max_ref_div = 0xff;
652 spll->min_feedback_div = 4;
653 spll->max_feedback_div = 0xff;
654 spll->best_vco = 0;
655
656 /* memory clock */
657 mpll->reference_freq =
658 le16_to_cpu(firmware_info->info_21.usMemoryReferenceClock);
659 mpll->reference_div = 0;
660
661 mpll->pll_out_min =
662 le16_to_cpu(firmware_info->info.usMinMemoryClockPLL_Output);
663 mpll->pll_out_max =
664 le32_to_cpu(firmware_info->info.ulMaxMemoryClockPLL_Output);
665
666 /* ??? */
667 if (mpll->pll_out_min == 0)
668 mpll->pll_out_min = 64800;
669
670 mpll->pll_in_min =
671 le16_to_cpu(firmware_info->info.usMinMemoryClockPLL_Input);
672 mpll->pll_in_max =
673 le16_to_cpu(firmware_info->info.usMaxMemoryClockPLL_Input);
674
675 adev->clock.default_sclk =
676 le32_to_cpu(firmware_info->info.ulDefaultEngineClock);
677 adev->clock.default_mclk =
678 le32_to_cpu(firmware_info->info.ulDefaultMemoryClock);
679
680 mpll->min_post_div = 1;
681 mpll->max_post_div = 1;
682 mpll->min_ref_div = 2;
683 mpll->max_ref_div = 0xff;
684 mpll->min_feedback_div = 4;
685 mpll->max_feedback_div = 0xff;
686 mpll->best_vco = 0;
687
688 /* disp clock */
689 adev->clock.default_dispclk =
690 le32_to_cpu(firmware_info->info_21.ulDefaultDispEngineClkFreq);
691 /* set a reasonable default for DP */
692 if (adev->clock.default_dispclk < 53900) {
693 DRM_INFO("Changing default dispclk from %dMhz to 600Mhz\n",
694 adev->clock.default_dispclk / 100);
695 adev->clock.default_dispclk = 60000;
696 }
697 adev->clock.dp_extclk =
698 le16_to_cpu(firmware_info->info_21.usUniphyDPModeExtClkFreq);
699 adev->clock.current_dispclk = adev->clock.default_dispclk;
700
701 adev->clock.max_pixel_clock = le16_to_cpu(firmware_info->info.usMaxPixelClock);
702 if (adev->clock.max_pixel_clock == 0)
703 adev->clock.max_pixel_clock = 40000;
704
705 /* not technically a clock, but... */
706 adev->mode_info.firmware_flags =
707 le16_to_cpu(firmware_info->info.usFirmwareCapability.susAccess);
708
709 ret = 0;
710 }
711
712 adev->pm.current_sclk = adev->clock.default_sclk;
713 adev->pm.current_mclk = adev->clock.default_mclk;
714
715 return ret;
716 }
717
718 union gfx_info {
719 ATOM_GFX_INFO_V2_1 info;
720 };
721
722 int amdgpu_atombios_get_gfx_info(struct amdgpu_device *adev)
723 {
724 struct amdgpu_mode_info *mode_info = &adev->mode_info;
725 int index = GetIndexIntoMasterTable(DATA, GFX_Info);
726 uint8_t frev, crev;
727 uint16_t data_offset;
728 int ret = -EINVAL;
729
730 if (amdgpu_atom_parse_data_header(mode_info->atom_context, index, NULL,
731 &frev, &crev, &data_offset)) {
732 union gfx_info *gfx_info = (union gfx_info *)
733 (mode_info->atom_context->bios + data_offset);
734
735 adev->gfx.config.max_shader_engines = gfx_info->info.max_shader_engines;
736 adev->gfx.config.max_tile_pipes = gfx_info->info.max_tile_pipes;
737 adev->gfx.config.max_cu_per_sh = gfx_info->info.max_cu_per_sh;
738 adev->gfx.config.max_sh_per_se = gfx_info->info.max_sh_per_se;
739 adev->gfx.config.max_backends_per_se = gfx_info->info.max_backends_per_se;
740 adev->gfx.config.max_texture_channel_caches =
741 gfx_info->info.max_texture_channel_caches;
742
743 ret = 0;
744 }
745 return ret;
746 }
747
748 union igp_info {
749 struct _ATOM_INTEGRATED_SYSTEM_INFO info;
750 struct _ATOM_INTEGRATED_SYSTEM_INFO_V2 info_2;
751 struct _ATOM_INTEGRATED_SYSTEM_INFO_V6 info_6;
752 struct _ATOM_INTEGRATED_SYSTEM_INFO_V1_7 info_7;
753 struct _ATOM_INTEGRATED_SYSTEM_INFO_V1_8 info_8;
754 struct _ATOM_INTEGRATED_SYSTEM_INFO_V1_9 info_9;
755 };
756
757 static void amdgpu_atombios_get_igp_ss_overrides(struct amdgpu_device *adev,
758 struct amdgpu_atom_ss *ss,
759 int id)
760 {
761 struct amdgpu_mode_info *mode_info = &adev->mode_info;
762 int index = GetIndexIntoMasterTable(DATA, IntegratedSystemInfo);
763 u16 data_offset, size;
764 union igp_info *igp_info;
765 u8 frev, crev;
766 u16 percentage = 0, rate = 0;
767
768 /* get any igp specific overrides */
769 if (amdgpu_atom_parse_data_header(mode_info->atom_context, index, &size,
770 &frev, &crev, &data_offset)) {
771 igp_info = (union igp_info *)
772 (mode_info->atom_context->bios + data_offset);
773 switch (crev) {
774 case 6:
775 switch (id) {
776 case ASIC_INTERNAL_SS_ON_TMDS:
777 percentage = le16_to_cpu(igp_info->info_6.usDVISSPercentage);
778 rate = le16_to_cpu(igp_info->info_6.usDVISSpreadRateIn10Hz);
779 break;
780 case ASIC_INTERNAL_SS_ON_HDMI:
781 percentage = le16_to_cpu(igp_info->info_6.usHDMISSPercentage);
782 rate = le16_to_cpu(igp_info->info_6.usHDMISSpreadRateIn10Hz);
783 break;
784 case ASIC_INTERNAL_SS_ON_LVDS:
785 percentage = le16_to_cpu(igp_info->info_6.usLvdsSSPercentage);
786 rate = le16_to_cpu(igp_info->info_6.usLvdsSSpreadRateIn10Hz);
787 break;
788 }
789 break;
790 case 7:
791 switch (id) {
792 case ASIC_INTERNAL_SS_ON_TMDS:
793 percentage = le16_to_cpu(igp_info->info_7.usDVISSPercentage);
794 rate = le16_to_cpu(igp_info->info_7.usDVISSpreadRateIn10Hz);
795 break;
796 case ASIC_INTERNAL_SS_ON_HDMI:
797 percentage = le16_to_cpu(igp_info->info_7.usHDMISSPercentage);
798 rate = le16_to_cpu(igp_info->info_7.usHDMISSpreadRateIn10Hz);
799 break;
800 case ASIC_INTERNAL_SS_ON_LVDS:
801 percentage = le16_to_cpu(igp_info->info_7.usLvdsSSPercentage);
802 rate = le16_to_cpu(igp_info->info_7.usLvdsSSpreadRateIn10Hz);
803 break;
804 }
805 break;
806 case 8:
807 switch (id) {
808 case ASIC_INTERNAL_SS_ON_TMDS:
809 percentage = le16_to_cpu(igp_info->info_8.usDVISSPercentage);
810 rate = le16_to_cpu(igp_info->info_8.usDVISSpreadRateIn10Hz);
811 break;
812 case ASIC_INTERNAL_SS_ON_HDMI:
813 percentage = le16_to_cpu(igp_info->info_8.usHDMISSPercentage);
814 rate = le16_to_cpu(igp_info->info_8.usHDMISSpreadRateIn10Hz);
815 break;
816 case ASIC_INTERNAL_SS_ON_LVDS:
817 percentage = le16_to_cpu(igp_info->info_8.usLvdsSSPercentage);
818 rate = le16_to_cpu(igp_info->info_8.usLvdsSSpreadRateIn10Hz);
819 break;
820 }
821 break;
822 case 9:
823 switch (id) {
824 case ASIC_INTERNAL_SS_ON_TMDS:
825 percentage = le16_to_cpu(igp_info->info_9.usDVISSPercentage);
826 rate = le16_to_cpu(igp_info->info_9.usDVISSpreadRateIn10Hz);
827 break;
828 case ASIC_INTERNAL_SS_ON_HDMI:
829 percentage = le16_to_cpu(igp_info->info_9.usHDMISSPercentage);
830 rate = le16_to_cpu(igp_info->info_9.usHDMISSpreadRateIn10Hz);
831 break;
832 case ASIC_INTERNAL_SS_ON_LVDS:
833 percentage = le16_to_cpu(igp_info->info_9.usLvdsSSPercentage);
834 rate = le16_to_cpu(igp_info->info_9.usLvdsSSpreadRateIn10Hz);
835 break;
836 }
837 break;
838 default:
839 DRM_ERROR("Unsupported IGP table: %d %d\n", frev, crev);
840 break;
841 }
842 if (percentage)
843 ss->percentage = percentage;
844 if (rate)
845 ss->rate = rate;
846 }
847 }
848
849 union asic_ss_info {
850 struct _ATOM_ASIC_INTERNAL_SS_INFO info;
851 struct _ATOM_ASIC_INTERNAL_SS_INFO_V2 info_2;
852 struct _ATOM_ASIC_INTERNAL_SS_INFO_V3 info_3;
853 };
854
855 union asic_ss_assignment {
856 struct _ATOM_ASIC_SS_ASSIGNMENT v1;
857 struct _ATOM_ASIC_SS_ASSIGNMENT_V2 v2;
858 struct _ATOM_ASIC_SS_ASSIGNMENT_V3 v3;
859 };
860
861 bool amdgpu_atombios_get_asic_ss_info(struct amdgpu_device *adev,
862 struct amdgpu_atom_ss *ss,
863 int id, u32 clock)
864 {
865 struct amdgpu_mode_info *mode_info = &adev->mode_info;
866 int index = GetIndexIntoMasterTable(DATA, ASIC_InternalSS_Info);
867 uint16_t data_offset, size;
868 union asic_ss_info *ss_info;
869 union asic_ss_assignment *ss_assign;
870 uint8_t frev, crev;
871 int i, num_indices;
872
873 if (id == ASIC_INTERNAL_MEMORY_SS) {
874 if (!(adev->mode_info.firmware_flags & ATOM_BIOS_INFO_MEMORY_CLOCK_SS_SUPPORT))
875 return false;
876 }
877 if (id == ASIC_INTERNAL_ENGINE_SS) {
878 if (!(adev->mode_info.firmware_flags & ATOM_BIOS_INFO_ENGINE_CLOCK_SS_SUPPORT))
879 return false;
880 }
881
882 memset(ss, 0, sizeof(struct amdgpu_atom_ss));
883 if (amdgpu_atom_parse_data_header(mode_info->atom_context, index, &size,
884 &frev, &crev, &data_offset)) {
885
886 ss_info =
887 (union asic_ss_info *)(mode_info->atom_context->bios + data_offset);
888
889 switch (frev) {
890 case 1:
891 num_indices = (size - sizeof(ATOM_COMMON_TABLE_HEADER)) /
892 sizeof(ATOM_ASIC_SS_ASSIGNMENT);
893
894 ss_assign = (union asic_ss_assignment *)((u8 *)&ss_info->info.asSpreadSpectrum[0]);
895 for (i = 0; i < num_indices; i++) {
896 if ((ss_assign->v1.ucClockIndication == id) &&
897 (clock <= le32_to_cpu(ss_assign->v1.ulTargetClockRange))) {
898 ss->percentage =
899 le16_to_cpu(ss_assign->v1.usSpreadSpectrumPercentage);
900 ss->type = ss_assign->v1.ucSpreadSpectrumMode;
901 ss->rate = le16_to_cpu(ss_assign->v1.usSpreadRateInKhz);
902 ss->percentage_divider = 100;
903 return true;
904 }
905 ss_assign = (union asic_ss_assignment *)
906 ((u8 *)ss_assign + sizeof(ATOM_ASIC_SS_ASSIGNMENT));
907 }
908 break;
909 case 2:
910 num_indices = (size - sizeof(ATOM_COMMON_TABLE_HEADER)) /
911 sizeof(ATOM_ASIC_SS_ASSIGNMENT_V2);
912 ss_assign = (union asic_ss_assignment *)((u8 *)&ss_info->info_2.asSpreadSpectrum[0]);
913 for (i = 0; i < num_indices; i++) {
914 if ((ss_assign->v2.ucClockIndication == id) &&
915 (clock <= le32_to_cpu(ss_assign->v2.ulTargetClockRange))) {
916 ss->percentage =
917 le16_to_cpu(ss_assign->v2.usSpreadSpectrumPercentage);
918 ss->type = ss_assign->v2.ucSpreadSpectrumMode;
919 ss->rate = le16_to_cpu(ss_assign->v2.usSpreadRateIn10Hz);
920 ss->percentage_divider = 100;
921 if ((crev == 2) &&
922 ((id == ASIC_INTERNAL_ENGINE_SS) ||
923 (id == ASIC_INTERNAL_MEMORY_SS)))
924 ss->rate /= 100;
925 return true;
926 }
927 ss_assign = (union asic_ss_assignment *)
928 ((u8 *)ss_assign + sizeof(ATOM_ASIC_SS_ASSIGNMENT_V2));
929 }
930 break;
931 case 3:
932 num_indices = (size - sizeof(ATOM_COMMON_TABLE_HEADER)) /
933 sizeof(ATOM_ASIC_SS_ASSIGNMENT_V3);
934 ss_assign = (union asic_ss_assignment *)((u8 *)&ss_info->info_3.asSpreadSpectrum[0]);
935 for (i = 0; i < num_indices; i++) {
936 if ((ss_assign->v3.ucClockIndication == id) &&
937 (clock <= le32_to_cpu(ss_assign->v3.ulTargetClockRange))) {
938 ss->percentage =
939 le16_to_cpu(ss_assign->v3.usSpreadSpectrumPercentage);
940 ss->type = ss_assign->v3.ucSpreadSpectrumMode;
941 ss->rate = le16_to_cpu(ss_assign->v3.usSpreadRateIn10Hz);
942 if (ss_assign->v3.ucSpreadSpectrumMode &
943 SS_MODE_V3_PERCENTAGE_DIV_BY_1000_MASK)
944 ss->percentage_divider = 1000;
945 else
946 ss->percentage_divider = 100;
947 if ((id == ASIC_INTERNAL_ENGINE_SS) ||
948 (id == ASIC_INTERNAL_MEMORY_SS))
949 ss->rate /= 100;
950 if (adev->flags & AMD_IS_APU)
951 amdgpu_atombios_get_igp_ss_overrides(adev, ss, id);
952 return true;
953 }
954 ss_assign = (union asic_ss_assignment *)
955 ((u8 *)ss_assign + sizeof(ATOM_ASIC_SS_ASSIGNMENT_V3));
956 }
957 break;
958 default:
959 DRM_ERROR("Unsupported ASIC_InternalSS_Info table: %d %d\n", frev, crev);
960 break;
961 }
962
963 }
964 return false;
965 }
966
967 union get_clock_dividers {
968 struct _COMPUTE_MEMORY_ENGINE_PLL_PARAMETERS v1;
969 struct _COMPUTE_MEMORY_ENGINE_PLL_PARAMETERS_V2 v2;
970 struct _COMPUTE_MEMORY_ENGINE_PLL_PARAMETERS_V3 v3;
971 struct _COMPUTE_MEMORY_ENGINE_PLL_PARAMETERS_V4 v4;
972 struct _COMPUTE_MEMORY_ENGINE_PLL_PARAMETERS_V5 v5;
973 struct _COMPUTE_GPU_CLOCK_INPUT_PARAMETERS_V1_6 v6_in;
974 struct _COMPUTE_GPU_CLOCK_OUTPUT_PARAMETERS_V1_6 v6_out;
975 };
976
977 int amdgpu_atombios_get_clock_dividers(struct amdgpu_device *adev,
978 u8 clock_type,
979 u32 clock,
980 bool strobe_mode,
981 struct atom_clock_dividers *dividers)
982 {
983 union get_clock_dividers args;
984 int index = GetIndexIntoMasterTable(COMMAND, ComputeMemoryEnginePLL);
985 u8 frev, crev;
986
987 memset(&args, 0, sizeof(args));
988 memset(dividers, 0, sizeof(struct atom_clock_dividers));
989
990 if (!amdgpu_atom_parse_cmd_header(adev->mode_info.atom_context, index, &frev, &crev))
991 return -EINVAL;
992
993 switch (crev) {
994 case 4:
995 /* fusion */
996 args.v4.ulClock = cpu_to_le32(clock); /* 10 khz */
997
998 amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
999
1000 dividers->post_divider = dividers->post_div = args.v4.ucPostDiv;
1001 dividers->real_clock = le32_to_cpu(args.v4.ulClock);
1002 break;
1003 case 6:
1004 /* CI */
1005 /* COMPUTE_GPUCLK_INPUT_FLAG_DEFAULT_GPUCLK, COMPUTE_GPUCLK_INPUT_FLAG_SCLK */
1006 args.v6_in.ulClock.ulComputeClockFlag = clock_type;
1007 args.v6_in.ulClock.ulClockFreq = cpu_to_le32(clock); /* 10 khz */
1008
1009 amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
1010
1011 dividers->whole_fb_div = le16_to_cpu(args.v6_out.ulFbDiv.usFbDiv);
1012 dividers->frac_fb_div = le16_to_cpu(args.v6_out.ulFbDiv.usFbDivFrac);
1013 dividers->ref_div = args.v6_out.ucPllRefDiv;
1014 dividers->post_div = args.v6_out.ucPllPostDiv;
1015 dividers->flags = args.v6_out.ucPllCntlFlag;
1016 dividers->real_clock = le32_to_cpu(args.v6_out.ulClock.ulClock);
1017 dividers->post_divider = args.v6_out.ulClock.ucPostDiv;
1018 break;
1019 default:
1020 return -EINVAL;
1021 }
1022 return 0;
1023 }
1024
1025 int amdgpu_atombios_get_memory_pll_dividers(struct amdgpu_device *adev,
1026 u32 clock,
1027 bool strobe_mode,
1028 struct atom_mpll_param *mpll_param)
1029 {
1030 COMPUTE_MEMORY_CLOCK_PARAM_PARAMETERS_V2_1 args;
1031 int index = GetIndexIntoMasterTable(COMMAND, ComputeMemoryClockParam);
1032 u8 frev, crev;
1033
1034 memset(&args, 0, sizeof(args));
1035 memset(mpll_param, 0, sizeof(struct atom_mpll_param));
1036
1037 if (!amdgpu_atom_parse_cmd_header(adev->mode_info.atom_context, index, &frev, &crev))
1038 return -EINVAL;
1039
1040 switch (frev) {
1041 case 2:
1042 switch (crev) {
1043 case 1:
1044 /* SI */
1045 args.ulClock = cpu_to_le32(clock); /* 10 khz */
1046 args.ucInputFlag = 0;
1047 if (strobe_mode)
1048 args.ucInputFlag |= MPLL_INPUT_FLAG_STROBE_MODE_EN;
1049
1050 amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
1051
1052 mpll_param->clkfrac = le16_to_cpu(args.ulFbDiv.usFbDivFrac);
1053 mpll_param->clkf = le16_to_cpu(args.ulFbDiv.usFbDiv);
1054 mpll_param->post_div = args.ucPostDiv;
1055 mpll_param->dll_speed = args.ucDllSpeed;
1056 mpll_param->bwcntl = args.ucBWCntl;
1057 mpll_param->vco_mode =
1058 (args.ucPllCntlFlag & MPLL_CNTL_FLAG_VCO_MODE_MASK);
1059 mpll_param->yclk_sel =
1060 (args.ucPllCntlFlag & MPLL_CNTL_FLAG_BYPASS_DQ_PLL) ? 1 : 0;
1061 mpll_param->qdr =
1062 (args.ucPllCntlFlag & MPLL_CNTL_FLAG_QDR_ENABLE) ? 1 : 0;
1063 mpll_param->half_rate =
1064 (args.ucPllCntlFlag & MPLL_CNTL_FLAG_AD_HALF_RATE) ? 1 : 0;
1065 break;
1066 default:
1067 return -EINVAL;
1068 }
1069 break;
1070 default:
1071 return -EINVAL;
1072 }
1073 return 0;
1074 }
1075
1076 uint32_t amdgpu_atombios_get_engine_clock(struct amdgpu_device *adev)
1077 {
1078 GET_ENGINE_CLOCK_PS_ALLOCATION args;
1079 int index = GetIndexIntoMasterTable(COMMAND, GetEngineClock);
1080
1081 amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
1082 return le32_to_cpu(args.ulReturnEngineClock);
1083 }
1084
1085 uint32_t amdgpu_atombios_get_memory_clock(struct amdgpu_device *adev)
1086 {
1087 GET_MEMORY_CLOCK_PS_ALLOCATION args;
1088 int index = GetIndexIntoMasterTable(COMMAND, GetMemoryClock);
1089
1090 amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
1091 return le32_to_cpu(args.ulReturnMemoryClock);
1092 }
1093
1094 void amdgpu_atombios_set_engine_clock(struct amdgpu_device *adev,
1095 uint32_t eng_clock)
1096 {
1097 SET_ENGINE_CLOCK_PS_ALLOCATION args;
1098 int index = GetIndexIntoMasterTable(COMMAND, SetEngineClock);
1099
1100 args.ulTargetEngineClock = cpu_to_le32(eng_clock); /* 10 khz */
1101
1102 amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
1103 }
1104
1105 void amdgpu_atombios_set_memory_clock(struct amdgpu_device *adev,
1106 uint32_t mem_clock)
1107 {
1108 SET_MEMORY_CLOCK_PS_ALLOCATION args;
1109 int index = GetIndexIntoMasterTable(COMMAND, SetMemoryClock);
1110
1111 if (adev->flags & AMD_IS_APU)
1112 return;
1113
1114 args.ulTargetMemoryClock = cpu_to_le32(mem_clock); /* 10 khz */
1115
1116 amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
1117 }
1118
1119 void amdgpu_atombios_set_engine_dram_timings(struct amdgpu_device *adev,
1120 u32 eng_clock, u32 mem_clock)
1121 {
1122 SET_ENGINE_CLOCK_PS_ALLOCATION args;
1123 int index = GetIndexIntoMasterTable(COMMAND, DynamicMemorySettings);
1124 u32 tmp;
1125
1126 memset(&args, 0, sizeof(args));
1127
1128 tmp = eng_clock & SET_CLOCK_FREQ_MASK;
1129 tmp |= (COMPUTE_ENGINE_PLL_PARAM << 24);
1130
1131 args.ulTargetEngineClock = cpu_to_le32(tmp);
1132 if (mem_clock)
1133 args.sReserved.ulClock = cpu_to_le32(mem_clock & SET_CLOCK_FREQ_MASK);
1134
1135 amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
1136 }
1137
1138 union set_voltage {
1139 struct _SET_VOLTAGE_PS_ALLOCATION alloc;
1140 struct _SET_VOLTAGE_PARAMETERS v1;
1141 struct _SET_VOLTAGE_PARAMETERS_V2 v2;
1142 struct _SET_VOLTAGE_PARAMETERS_V1_3 v3;
1143 };
1144
1145 void amdgpu_atombios_set_voltage(struct amdgpu_device *adev,
1146 u16 voltage_level,
1147 u8 voltage_type)
1148 {
1149 union set_voltage args;
1150 int index = GetIndexIntoMasterTable(COMMAND, SetVoltage);
1151 u8 frev, crev, volt_index = voltage_level;
1152
1153 if (!amdgpu_atom_parse_cmd_header(adev->mode_info.atom_context, index, &frev, &crev))
1154 return;
1155
1156 /* 0xff01 is a flag rather then an actual voltage */
1157 if (voltage_level == 0xff01)
1158 return;
1159
1160 switch (crev) {
1161 case 1:
1162 args.v1.ucVoltageType = voltage_type;
1163 args.v1.ucVoltageMode = SET_ASIC_VOLTAGE_MODE_ALL_SOURCE;
1164 args.v1.ucVoltageIndex = volt_index;
1165 break;
1166 case 2:
1167 args.v2.ucVoltageType = voltage_type;
1168 args.v2.ucVoltageMode = SET_ASIC_VOLTAGE_MODE_SET_VOLTAGE;
1169 args.v2.usVoltageLevel = cpu_to_le16(voltage_level);
1170 break;
1171 case 3:
1172 args.v3.ucVoltageType = voltage_type;
1173 args.v3.ucVoltageMode = ATOM_SET_VOLTAGE;
1174 args.v3.usVoltageLevel = cpu_to_le16(voltage_level);
1175 break;
1176 default:
1177 DRM_ERROR("Unknown table version %d, %d\n", frev, crev);
1178 return;
1179 }
1180
1181 amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
1182 }
1183
1184 int amdgpu_atombios_get_leakage_id_from_vbios(struct amdgpu_device *adev,
1185 u16 *leakage_id)
1186 {
1187 union set_voltage args;
1188 int index = GetIndexIntoMasterTable(COMMAND, SetVoltage);
1189 u8 frev, crev;
1190
1191 if (!amdgpu_atom_parse_cmd_header(adev->mode_info.atom_context, index, &frev, &crev))
1192 return -EINVAL;
1193
1194 switch (crev) {
1195 case 3:
1196 case 4:
1197 args.v3.ucVoltageType = 0;
1198 args.v3.ucVoltageMode = ATOM_GET_LEAKAGE_ID;
1199 args.v3.usVoltageLevel = 0;
1200
1201 amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
1202
1203 *leakage_id = le16_to_cpu(args.v3.usVoltageLevel);
1204 break;
1205 default:
1206 DRM_ERROR("Unknown table version %d, %d\n", frev, crev);
1207 return -EINVAL;
1208 }
1209
1210 return 0;
1211 }
1212
1213 int amdgpu_atombios_get_leakage_vddc_based_on_leakage_params(struct amdgpu_device *adev,
1214 u16 *vddc, u16 *vddci,
1215 u16 virtual_voltage_id,
1216 u16 vbios_voltage_id)
1217 {
1218 int index = GetIndexIntoMasterTable(DATA, ASIC_ProfilingInfo);
1219 u8 frev, crev;
1220 u16 data_offset, size;
1221 int i, j;
1222 ATOM_ASIC_PROFILING_INFO_V2_1 *profile;
1223 u16 *leakage_bin, *vddc_id_buf, *vddc_buf, *vddci_id_buf, *vddci_buf;
1224
1225 *vddc = 0;
1226 *vddci = 0;
1227
1228 if (!amdgpu_atom_parse_data_header(adev->mode_info.atom_context, index, &size,
1229 &frev, &crev, &data_offset))
1230 return -EINVAL;
1231
1232 profile = (ATOM_ASIC_PROFILING_INFO_V2_1 *)
1233 (adev->mode_info.atom_context->bios + data_offset);
1234
1235 switch (frev) {
1236 case 1:
1237 return -EINVAL;
1238 case 2:
1239 switch (crev) {
1240 case 1:
1241 if (size < sizeof(ATOM_ASIC_PROFILING_INFO_V2_1))
1242 return -EINVAL;
1243 leakage_bin = (u16 *)
1244 (adev->mode_info.atom_context->bios + data_offset +
1245 le16_to_cpu(profile->usLeakageBinArrayOffset));
1246 vddc_id_buf = (u16 *)
1247 (adev->mode_info.atom_context->bios + data_offset +
1248 le16_to_cpu(profile->usElbVDDC_IdArrayOffset));
1249 vddc_buf = (u16 *)
1250 (adev->mode_info.atom_context->bios + data_offset +
1251 le16_to_cpu(profile->usElbVDDC_LevelArrayOffset));
1252 vddci_id_buf = (u16 *)
1253 (adev->mode_info.atom_context->bios + data_offset +
1254 le16_to_cpu(profile->usElbVDDCI_IdArrayOffset));
1255 vddci_buf = (u16 *)
1256 (adev->mode_info.atom_context->bios + data_offset +
1257 le16_to_cpu(profile->usElbVDDCI_LevelArrayOffset));
1258
1259 if (profile->ucElbVDDC_Num > 0) {
1260 for (i = 0; i < profile->ucElbVDDC_Num; i++) {
1261 if (vddc_id_buf[i] == virtual_voltage_id) {
1262 for (j = 0; j < profile->ucLeakageBinNum; j++) {
1263 if (vbios_voltage_id <= leakage_bin[j]) {
1264 *vddc = vddc_buf[j * profile->ucElbVDDC_Num + i];
1265 break;
1266 }
1267 }
1268 break;
1269 }
1270 }
1271 }
1272 if (profile->ucElbVDDCI_Num > 0) {
1273 for (i = 0; i < profile->ucElbVDDCI_Num; i++) {
1274 if (vddci_id_buf[i] == virtual_voltage_id) {
1275 for (j = 0; j < profile->ucLeakageBinNum; j++) {
1276 if (vbios_voltage_id <= leakage_bin[j]) {
1277 *vddci = vddci_buf[j * profile->ucElbVDDCI_Num + i];
1278 break;
1279 }
1280 }
1281 break;
1282 }
1283 }
1284 }
1285 break;
1286 default:
1287 DRM_ERROR("Unknown table version %d, %d\n", frev, crev);
1288 return -EINVAL;
1289 }
1290 break;
1291 default:
1292 DRM_ERROR("Unknown table version %d, %d\n", frev, crev);
1293 return -EINVAL;
1294 }
1295
1296 return 0;
1297 }
1298
1299 union get_voltage_info {
1300 struct _GET_VOLTAGE_INFO_INPUT_PARAMETER_V1_2 in;
1301 struct _GET_EVV_VOLTAGE_INFO_OUTPUT_PARAMETER_V1_2 evv_out;
1302 };
1303
1304 int amdgpu_atombios_get_voltage_evv(struct amdgpu_device *adev,
1305 u16 virtual_voltage_id,
1306 u16 *voltage)
1307 {
1308 int index = GetIndexIntoMasterTable(COMMAND, GetVoltageInfo);
1309 u32 entry_id;
1310 u32 count = adev->pm.dpm.dyn_state.vddc_dependency_on_sclk.count;
1311 union get_voltage_info args;
1312
1313 for (entry_id = 0; entry_id < count; entry_id++) {
1314 if (adev->pm.dpm.dyn_state.vddc_dependency_on_sclk.entries[entry_id].v ==
1315 virtual_voltage_id)
1316 break;
1317 }
1318
1319 if (entry_id >= count)
1320 return -EINVAL;
1321
1322 args.in.ucVoltageType = VOLTAGE_TYPE_VDDC;
1323 args.in.ucVoltageMode = ATOM_GET_VOLTAGE_EVV_VOLTAGE;
1324 args.in.usVoltageLevel = cpu_to_le16(virtual_voltage_id);
1325 args.in.ulSCLKFreq =
1326 cpu_to_le32(adev->pm.dpm.dyn_state.vddc_dependency_on_sclk.entries[entry_id].clk);
1327
1328 amdgpu_atom_execute_table(adev->mode_info.atom_context, index, (uint32_t *)&args);
1329
1330 *voltage = le16_to_cpu(args.evv_out.usVoltageLevel);
1331
1332 return 0;
1333 }
1334
1335 union voltage_object_info {
1336 struct _ATOM_VOLTAGE_OBJECT_INFO v1;
1337 struct _ATOM_VOLTAGE_OBJECT_INFO_V2 v2;
1338 struct _ATOM_VOLTAGE_OBJECT_INFO_V3_1 v3;
1339 };
1340
1341 union voltage_object {
1342 struct _ATOM_VOLTAGE_OBJECT v1;
1343 struct _ATOM_VOLTAGE_OBJECT_V2 v2;
1344 union _ATOM_VOLTAGE_OBJECT_V3 v3;
1345 };
1346
1347
1348 static ATOM_VOLTAGE_OBJECT_V3 *amdgpu_atombios_lookup_voltage_object_v3(ATOM_VOLTAGE_OBJECT_INFO_V3_1 *v3,
1349 u8 voltage_type, u8 voltage_mode)
1350 {
1351 u32 size = le16_to_cpu(v3->sHeader.usStructureSize);
1352 u32 offset = offsetof(ATOM_VOLTAGE_OBJECT_INFO_V3_1, asVoltageObj[0]);
1353 u8 *start = (u8*)v3;
1354
1355 while (offset < size) {
1356 ATOM_VOLTAGE_OBJECT_V3 *vo = (ATOM_VOLTAGE_OBJECT_V3 *)(start + offset);
1357 if ((vo->asGpioVoltageObj.sHeader.ucVoltageType == voltage_type) &&
1358 (vo->asGpioVoltageObj.sHeader.ucVoltageMode == voltage_mode))
1359 return vo;
1360 offset += le16_to_cpu(vo->asGpioVoltageObj.sHeader.usSize);
1361 }
1362 return NULL;
1363 }
1364
1365 bool
1366 amdgpu_atombios_is_voltage_gpio(struct amdgpu_device *adev,
1367 u8 voltage_type, u8 voltage_mode)
1368 {
1369 int index = GetIndexIntoMasterTable(DATA, VoltageObjectInfo);
1370 u8 frev, crev;
1371 u16 data_offset, size;
1372 union voltage_object_info *voltage_info;
1373
1374 if (amdgpu_atom_parse_data_header(adev->mode_info.atom_context, index, &size,
1375 &frev, &crev, &data_offset)) {
1376 voltage_info = (union voltage_object_info *)
1377 (adev->mode_info.atom_context->bios + data_offset);
1378
1379 switch (frev) {
1380 case 3:
1381 switch (crev) {
1382 case 1:
1383 if (amdgpu_atombios_lookup_voltage_object_v3(&voltage_info->v3,
1384 voltage_type, voltage_mode))
1385 return true;
1386 break;
1387 default:
1388 DRM_ERROR("unknown voltage object table\n");
1389 return false;
1390 }
1391 break;
1392 default:
1393 DRM_ERROR("unknown voltage object table\n");
1394 return false;
1395 }
1396
1397 }
1398 return false;
1399 }
1400
1401 int amdgpu_atombios_get_voltage_table(struct amdgpu_device *adev,
1402 u8 voltage_type, u8 voltage_mode,
1403 struct atom_voltage_table *voltage_table)
1404 {
1405 int index = GetIndexIntoMasterTable(DATA, VoltageObjectInfo);
1406 u8 frev, crev;
1407 u16 data_offset, size;
1408 int i;
1409 union voltage_object_info *voltage_info;
1410 union voltage_object *voltage_object = NULL;
1411
1412 if (amdgpu_atom_parse_data_header(adev->mode_info.atom_context, index, &size,
1413 &frev, &crev, &data_offset)) {
1414 voltage_info = (union voltage_object_info *)
1415 (adev->mode_info.atom_context->bios + data_offset);
1416
1417 switch (frev) {
1418 case 3:
1419 switch (crev) {
1420 case 1:
1421 voltage_object = (union voltage_object *)
1422 amdgpu_atombios_lookup_voltage_object_v3(&voltage_info->v3,
1423 voltage_type, voltage_mode);
1424 if (voltage_object) {
1425 ATOM_GPIO_VOLTAGE_OBJECT_V3 *gpio =
1426 &voltage_object->v3.asGpioVoltageObj;
1427 VOLTAGE_LUT_ENTRY_V2 *lut;
1428 if (gpio->ucGpioEntryNum > MAX_VOLTAGE_ENTRIES)
1429 return -EINVAL;
1430 lut = &gpio->asVolGpioLut[0];
1431 for (i = 0; i < gpio->ucGpioEntryNum; i++) {
1432 voltage_table->entries[i].value =
1433 le16_to_cpu(lut->usVoltageValue);
1434 voltage_table->entries[i].smio_low =
1435 le32_to_cpu(lut->ulVoltageId);
1436 lut = (VOLTAGE_LUT_ENTRY_V2 *)
1437 ((u8 *)lut + sizeof(VOLTAGE_LUT_ENTRY_V2));
1438 }
1439 voltage_table->mask_low = le32_to_cpu(gpio->ulGpioMaskVal);
1440 voltage_table->count = gpio->ucGpioEntryNum;
1441 voltage_table->phase_delay = gpio->ucPhaseDelay;
1442 return 0;
1443 }
1444 break;
1445 default:
1446 DRM_ERROR("unknown voltage object table\n");
1447 return -EINVAL;
1448 }
1449 break;
1450 default:
1451 DRM_ERROR("unknown voltage object table\n");
1452 return -EINVAL;
1453 }
1454 }
1455 return -EINVAL;
1456 }
1457
1458 union vram_info {
1459 struct _ATOM_VRAM_INFO_V3 v1_3;
1460 struct _ATOM_VRAM_INFO_V4 v1_4;
1461 struct _ATOM_VRAM_INFO_HEADER_V2_1 v2_1;
1462 };
1463
1464 #define MEM_ID_MASK 0xff000000
1465 #define MEM_ID_SHIFT 24
1466 #define CLOCK_RANGE_MASK 0x00ffffff
1467 #define CLOCK_RANGE_SHIFT 0
1468 #define LOW_NIBBLE_MASK 0xf
1469 #define DATA_EQU_PREV 0
1470 #define DATA_FROM_TABLE 4
1471
1472 int amdgpu_atombios_init_mc_reg_table(struct amdgpu_device *adev,
1473 u8 module_index,
1474 struct atom_mc_reg_table *reg_table)
1475 {
1476 int index = GetIndexIntoMasterTable(DATA, VRAM_Info);
1477 u8 frev, crev, num_entries, t_mem_id, num_ranges = 0;
1478 u32 i = 0, j;
1479 u16 data_offset, size;
1480 union vram_info *vram_info;
1481
1482 memset(reg_table, 0, sizeof(struct atom_mc_reg_table));
1483
1484 if (amdgpu_atom_parse_data_header(adev->mode_info.atom_context, index, &size,
1485 &frev, &crev, &data_offset)) {
1486 vram_info = (union vram_info *)
1487 (adev->mode_info.atom_context->bios + data_offset);
1488 switch (frev) {
1489 case 1:
1490 DRM_ERROR("old table version %d, %d\n", frev, crev);
1491 return -EINVAL;
1492 case 2:
1493 switch (crev) {
1494 case 1:
1495 if (module_index < vram_info->v2_1.ucNumOfVRAMModule) {
1496 ATOM_INIT_REG_BLOCK *reg_block =
1497 (ATOM_INIT_REG_BLOCK *)
1498 ((u8 *)vram_info + le16_to_cpu(vram_info->v2_1.usMemClkPatchTblOffset));
1499 ATOM_MEMORY_SETTING_DATA_BLOCK *reg_data =
1500 (ATOM_MEMORY_SETTING_DATA_BLOCK *)
1501 ((u8 *)reg_block + (2 * sizeof(u16)) +
1502 le16_to_cpu(reg_block->usRegIndexTblSize));
1503 ATOM_INIT_REG_INDEX_FORMAT *format = &reg_block->asRegIndexBuf[0];
1504 num_entries = (u8)((le16_to_cpu(reg_block->usRegIndexTblSize)) /
1505 sizeof(ATOM_INIT_REG_INDEX_FORMAT)) - 1;
1506 if (num_entries > VBIOS_MC_REGISTER_ARRAY_SIZE)
1507 return -EINVAL;
1508 while (i < num_entries) {
1509 if (format->ucPreRegDataLength & ACCESS_PLACEHOLDER)
1510 break;
1511 reg_table->mc_reg_address[i].s1 =
1512 (u16)(le16_to_cpu(format->usRegIndex));
1513 reg_table->mc_reg_address[i].pre_reg_data =
1514 (u8)(format->ucPreRegDataLength);
1515 i++;
1516 format = (ATOM_INIT_REG_INDEX_FORMAT *)
1517 ((u8 *)format + sizeof(ATOM_INIT_REG_INDEX_FORMAT));
1518 }
1519 reg_table->last = i;
1520 while ((le32_to_cpu(*(u32 *)reg_data) != END_OF_REG_DATA_BLOCK) &&
1521 (num_ranges < VBIOS_MAX_AC_TIMING_ENTRIES)) {
1522 t_mem_id = (u8)((le32_to_cpu(*(u32 *)reg_data) & MEM_ID_MASK)
1523 >> MEM_ID_SHIFT);
1524 if (module_index == t_mem_id) {
1525 reg_table->mc_reg_table_entry[num_ranges].mclk_max =
1526 (u32)((le32_to_cpu(*(u32 *)reg_data) & CLOCK_RANGE_MASK)
1527 >> CLOCK_RANGE_SHIFT);
1528 for (i = 0, j = 1; i < reg_table->last; i++) {
1529 if ((reg_table->mc_reg_address[i].pre_reg_data & LOW_NIBBLE_MASK) == DATA_FROM_TABLE) {
1530 reg_table->mc_reg_table_entry[num_ranges].mc_data[i] =
1531 (u32)le32_to_cpu(*((u32 *)reg_data + j));
1532 j++;
1533 } else if ((reg_table->mc_reg_address[i].pre_reg_data & LOW_NIBBLE_MASK) == DATA_EQU_PREV) {
1534 reg_table->mc_reg_table_entry[num_ranges].mc_data[i] =
1535 reg_table->mc_reg_table_entry[num_ranges].mc_data[i - 1];
1536 }
1537 }
1538 num_ranges++;
1539 }
1540 reg_data = (ATOM_MEMORY_SETTING_DATA_BLOCK *)
1541 ((u8 *)reg_data + le16_to_cpu(reg_block->usRegDataBlkSize));
1542 }
1543 if (le32_to_cpu(*(u32 *)reg_data) != END_OF_REG_DATA_BLOCK)
1544 return -EINVAL;
1545 reg_table->num_entries = num_ranges;
1546 } else
1547 return -EINVAL;
1548 break;
1549 default:
1550 DRM_ERROR("Unknown table version %d, %d\n", frev, crev);
1551 return -EINVAL;
1552 }
1553 break;
1554 default:
1555 DRM_ERROR("Unknown table version %d, %d\n", frev, crev);
1556 return -EINVAL;
1557 }
1558 return 0;
1559 }
1560 return -EINVAL;
1561 }
1562
1563 bool amdgpu_atombios_has_gpu_virtualization_table(struct amdgpu_device *adev)
1564 {
1565 int index = GetIndexIntoMasterTable(DATA, GPUVirtualizationInfo);
1566 u8 frev, crev;
1567 u16 data_offset, size;
1568
1569 if (amdgpu_atom_parse_data_header(adev->mode_info.atom_context, index, &size,
1570 &frev, &crev, &data_offset))
1571 return true;
1572
1573 return false;
1574 }
1575
1576 void amdgpu_atombios_scratch_regs_lock(struct amdgpu_device *adev, bool lock)
1577 {
1578 uint32_t bios_6_scratch;
1579
1580 bios_6_scratch = RREG32(mmBIOS_SCRATCH_6);
1581
1582 if (lock) {
1583 bios_6_scratch |= ATOM_S6_CRITICAL_STATE;
1584 bios_6_scratch &= ~ATOM_S6_ACC_MODE;
1585 } else {
1586 bios_6_scratch &= ~ATOM_S6_CRITICAL_STATE;
1587 bios_6_scratch |= ATOM_S6_ACC_MODE;
1588 }
1589
1590 WREG32(mmBIOS_SCRATCH_6, bios_6_scratch);
1591 }
1592
1593 void amdgpu_atombios_scratch_regs_init(struct amdgpu_device *adev)
1594 {
1595 uint32_t bios_2_scratch, bios_6_scratch;
1596
1597 bios_2_scratch = RREG32(mmBIOS_SCRATCH_2);
1598 bios_6_scratch = RREG32(mmBIOS_SCRATCH_6);
1599
1600 /* let the bios control the backlight */
1601 bios_2_scratch &= ~ATOM_S2_VRI_BRIGHT_ENABLE;
1602
1603 /* tell the bios not to handle mode switching */
1604 bios_6_scratch |= ATOM_S6_ACC_BLOCK_DISPLAY_SWITCH;
1605
1606 /* clear the vbios dpms state */
1607 bios_2_scratch &= ~ATOM_S2_DEVICE_DPMS_STATE;
1608
1609 WREG32(mmBIOS_SCRATCH_2, bios_2_scratch);
1610 WREG32(mmBIOS_SCRATCH_6, bios_6_scratch);
1611 }
1612
1613 void amdgpu_atombios_scratch_regs_save(struct amdgpu_device *adev)
1614 {
1615 int i;
1616
1617 for (i = 0; i < AMDGPU_BIOS_NUM_SCRATCH; i++)
1618 adev->bios_scratch[i] = RREG32(mmBIOS_SCRATCH_0 + i);
1619 }
1620
1621 void amdgpu_atombios_scratch_regs_restore(struct amdgpu_device *adev)
1622 {
1623 int i;
1624
1625 for (i = 0; i < AMDGPU_BIOS_NUM_SCRATCH; i++)
1626 WREG32(mmBIOS_SCRATCH_0 + i, adev->bios_scratch[i]);
1627 }
1628
1629 /* Atom needs data in little endian format
1630 * so swap as appropriate when copying data to
1631 * or from atom. Note that atom operates on
1632 * dw units.
1633 */
1634 void amdgpu_atombios_copy_swap(u8 *dst, u8 *src, u8 num_bytes, bool to_le)
1635 {
1636 #ifdef __BIG_ENDIAN
1637 u8 src_tmp[20], dst_tmp[20]; /* used for byteswapping */
1638 u32 *dst32, *src32;
1639 int i;
1640
1641 memcpy(src_tmp, src, num_bytes);
1642 src32 = (u32 *)src_tmp;
1643 dst32 = (u32 *)dst_tmp;
1644 if (to_le) {
1645 for (i = 0; i < ((num_bytes + 3) / 4); i++)
1646 dst32[i] = cpu_to_le32(src32[i]);
1647 memcpy(dst, dst_tmp, num_bytes);
1648 } else {
1649 u8 dws = num_bytes & ~3;
1650 for (i = 0; i < ((num_bytes + 3) / 4); i++)
1651 dst32[i] = le32_to_cpu(src32[i]);
1652 memcpy(dst, dst_tmp, dws);
1653 if (num_bytes % 4) {
1654 for (i = 0; i < (num_bytes % 4); i++)
1655 dst[dws+i] = dst_tmp[dws+i];
1656 }
1657 }
1658 #else
1659 memcpy(dst, src, num_bytes);
1660 #endif
1661 }
Linux kernel - Deliverables
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